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authorLinus Torvalds <torvalds@linux-foundation.org>2016-05-19 01:38:59 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-19 01:38:59 +0200
commit675e0655c12209ba1f40af0dff7cd76b17a1315c (patch)
treec29b8ddd6fdbd66161e7150feee566daaebe36d3
parentMerge branch 'stable/for-linus-4.7' of git://git.kernel.org/pub/scm/linux/ker... (diff)
parentMerge branch 'fixes' into misc (diff)
downloadlinux-675e0655c12209ba1f40af0dff7cd76b17a1315c.tar.xz
linux-675e0655c12209ba1f40af0dff7cd76b17a1315c.zip
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley: "First round of SCSI updates for the 4.6+ merge window. This batch includes the usual quota of driver updates (bnx2fc, mp3sas, hpsa, ncr5380, lpfc, hisi_sas, snic, aacraid, megaraid_sas). There's also a multiqueue update for scsi_debug, assorted bug fixes and a few other minor updates (refactor of scsi_sg_pools into generic code, alua and VPD updates, and struct timeval conversions)" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (138 commits) mpt3sas: Used "synchronize_irq()"API to synchronize timed-out IO & TMs mpt3sas: Set maximum transfer length per IO to 4MB for VDs mpt3sas: Updating mpt3sas driver version to 13.100.00.00 mpt3sas: Fix initial Reference tag field for 4K PI drives. mpt3sas: Handle active cable exception event mpt3sas: Update MPI header to 2.00.42 Revert "lpfc: Delete unnecessary checks before the function call mempool_destroy" eata_pio: missing break statement hpsa: Fix type ZBC conditional checks scsi_lib: Decode T10 vendor IDs scsi_dh_alua: do not fail for unknown VPD identification scsi_debug: use locally assigned naa scsi_debug: uuid for lu name scsi_debug: vpd and mode page work scsi_debug: add multiple queue support bfa: fix bfa_fcb_itnim_alloc() error handling megaraid_sas: Downgrade two success messages to info cxlflash: Fix to resolve dead-lock during EEH recovery scsi_debug: rework resp_report_luns scsi_debug: use pdt constants ...
-rw-r--r--Documentation/scsi/g_NCR5380.txt17
-rw-r--r--Documentation/scsi/scsi-parameters.txt11
-rw-r--r--MAINTAINERS2
-rw-r--r--drivers/ata/pata_icside.c2
-rw-r--r--drivers/infiniband/ulp/srp/ib_srp.c6
-rw-r--r--drivers/message/fusion/mptsas.c4
-rw-r--r--drivers/message/fusion/mptspi.c2
-rw-r--r--drivers/s390/scsi/zfcp_unit.c3
-rw-r--r--drivers/scsi/Kconfig16
-rw-r--r--drivers/scsi/NCR5380.c657
-rw-r--r--drivers/scsi/NCR5380.h143
-rw-r--r--drivers/scsi/aacraid/aachba.c22
-rw-r--r--drivers/scsi/aacraid/aacraid.h9
-rw-r--r--drivers/scsi/aacraid/comminit.c43
-rw-r--r--drivers/scsi/aacraid/commsup.c39
-rw-r--r--drivers/scsi/aacraid/dpcsup.c7
-rw-r--r--drivers/scsi/aacraid/linit.c4
-rw-r--r--drivers/scsi/aacraid/src.c3
-rw-r--r--drivers/scsi/arm/cumana_1.c25
-rw-r--r--drivers/scsi/arm/cumana_2.c2
-rw-r--r--drivers/scsi/arm/eesox.c2
-rw-r--r--drivers/scsi/arm/oak.c22
-rw-r--r--drivers/scsi/arm/powertec.c2
-rw-r--r--drivers/scsi/atari_NCR5380.c2676
-rw-r--r--drivers/scsi/atari_scsi.c144
-rw-r--r--drivers/scsi/bfa/bfa_fcs.h4
-rw-r--r--drivers/scsi/bfa/bfa_fcs_fcpim.c5
-rw-r--r--drivers/scsi/bfa/bfad_im.c5
-rw-r--r--drivers/scsi/bnx2fc/bnx2fc.h3
-rw-r--r--drivers/scsi/bnx2fc/bnx2fc_fcoe.c100
-rw-r--r--drivers/scsi/bnx2fc/bnx2fc_io.c14
-rw-r--r--drivers/scsi/bnx2i/bnx2i_iscsi.c4
-rw-r--r--drivers/scsi/constants.c859
-rw-r--r--drivers/scsi/cxlflash/superpipe.c15
-rw-r--r--drivers/scsi/device_handler/scsi_dh_alua.c33
-rw-r--r--drivers/scsi/dmx3191d.c10
-rw-r--r--drivers/scsi/dtc.c27
-rw-r--r--drivers/scsi/dtc.h7
-rw-r--r--drivers/scsi/eata_pio.c1
-rw-r--r--drivers/scsi/esas2r/esas2r_main.c4
-rw-r--r--drivers/scsi/fnic/fnic.h2
-rw-r--r--drivers/scsi/fnic/fnic_scsi.c91
-rw-r--r--drivers/scsi/g_NCR5380.c141
-rw-r--r--drivers/scsi/g_NCR5380.h26
-rw-r--r--drivers/scsi/hisi_sas/hisi_sas.h7
-rw-r--r--drivers/scsi/hisi_sas/hisi_sas_main.c11
-rw-r--r--drivers/scsi/hisi_sas/hisi_sas_v2_hw.c90
-rw-r--r--drivers/scsi/hpsa.c187
-rw-r--r--drivers/scsi/hpsa.h1
-rw-r--r--drivers/scsi/libiscsi.c9
-rw-r--r--drivers/scsi/lpfc/lpfc.h4
-rw-r--r--drivers/scsi/lpfc/lpfc_attr.c26
-rw-r--r--drivers/scsi/lpfc/lpfc_ct.c6
-rw-r--r--drivers/scsi/lpfc/lpfc_els.c176
-rw-r--r--drivers/scsi/lpfc/lpfc_hbadisc.c5
-rw-r--r--drivers/scsi/lpfc/lpfc_hw.h75
-rw-r--r--drivers/scsi/lpfc/lpfc_hw4.h29
-rw-r--r--drivers/scsi/lpfc/lpfc_init.c27
-rw-r--r--drivers/scsi/lpfc/lpfc_mbox.c12
-rw-r--r--drivers/scsi/lpfc/lpfc_mem.c6
-rw-r--r--drivers/scsi/lpfc/lpfc_nportdisc.c4
-rw-r--r--drivers/scsi/lpfc/lpfc_sli.c140
-rw-r--r--drivers/scsi/lpfc/lpfc_version.h6
-rw-r--r--drivers/scsi/lpfc/lpfc_vport.c5
-rw-r--r--drivers/scsi/mac_scsi.c241
-rw-r--r--drivers/scsi/megaraid/megaraid_sas.h6
-rw-r--r--drivers/scsi/megaraid/megaraid_sas_base.c117
-rw-r--r--drivers/scsi/megaraid/megaraid_sas_fusion.c7
-rw-r--r--drivers/scsi/mpt3sas/mpi/mpi2.h7
-rw-r--r--drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h18
-rw-r--r--drivers/scsi/mpt3sas/mpi/mpi2_init.h15
-rw-r--r--drivers/scsi/mpt3sas/mpi/mpi2_ioc.h40
-rw-r--r--drivers/scsi/mpt3sas/mpt3sas_base.c32
-rw-r--r--drivers/scsi/mpt3sas/mpt3sas_base.h11
-rw-r--r--drivers/scsi/mpt3sas/mpt3sas_scsih.c37
-rw-r--r--drivers/scsi/mvsas/mv_init.c19
-rw-r--r--drivers/scsi/pas16.c27
-rw-r--r--drivers/scsi/pas16.h5
-rw-r--r--drivers/scsi/pm8001/pm8001_init.c2
-rw-r--r--drivers/scsi/qla2xxx/qla_mr.c5
-rw-r--r--drivers/scsi/qla2xxx/qla_nx.c2
-rw-r--r--drivers/scsi/scsi_debug.c2801
-rw-r--r--drivers/scsi/scsi_lib.c188
-rw-r--r--drivers/scsi/scsi_priv.h2
-rw-r--r--drivers/scsi/scsi_proc.c3
-rw-r--r--drivers/scsi/scsi_scan.c45
-rw-r--r--drivers/scsi/scsi_sysfs.c9
-rw-r--r--drivers/scsi/scsi_trace.c161
-rw-r--r--drivers/scsi/scsi_transport_fc.c9
-rw-r--r--drivers/scsi/scsi_transport_iscsi.c19
-rw-r--r--drivers/scsi/scsi_transport_sas.c7
-rw-r--r--drivers/scsi/sense_codes.h826
-rw-r--r--drivers/scsi/snic/snic.h5
-rw-r--r--drivers/scsi/snic/snic_ctl.c8
-rw-r--r--drivers/scsi/snic/snic_debugfs.c20
-rw-r--r--drivers/scsi/snic/snic_disc.c19
-rw-r--r--drivers/scsi/snic/snic_fwint.h4
-rw-r--r--drivers/scsi/snic/snic_io.c62
-rw-r--r--drivers/scsi/snic/snic_isr.c6
-rw-r--r--drivers/scsi/snic/snic_main.c44
-rw-r--r--drivers/scsi/snic/snic_scsi.c56
-rw-r--r--drivers/scsi/snic/snic_stats.h12
-rw-r--r--drivers/scsi/snic/vnic_dev.c44
-rw-r--r--drivers/scsi/st.c9
-rw-r--r--drivers/scsi/sun3_scsi.c47
-rw-r--r--drivers/scsi/t128.c19
-rw-r--r--drivers/scsi/t128.h7
-rw-r--r--drivers/usb/storage/scsiglue.c2
-rw-r--r--include/linux/scatterlist.h25
-rw-r--r--include/scsi/scsi.h19
-rw-r--r--include/scsi/scsi_device.h14
-rw-r--r--include/scsi/scsi_host.h2
-rw-r--r--include/scsi/scsi_proto.h9
-rw-r--r--include/trace/events/scsi.h6
-rw-r--r--lib/Kconfig7
-rw-r--r--lib/Makefile1
-rw-r--r--lib/sg_pool.c172
117 files changed, 4839 insertions, 6481 deletions
diff --git a/Documentation/scsi/g_NCR5380.txt b/Documentation/scsi/g_NCR5380.txt
index 3b80f567f818..fd880150aeea 100644
--- a/Documentation/scsi/g_NCR5380.txt
+++ b/Documentation/scsi/g_NCR5380.txt
@@ -23,11 +23,10 @@ supported by the driver.
If the default configuration does not work for you, you can use the kernel
command lines (eg using the lilo append command):
- ncr5380=port,irq,dma
- ncr53c400=port,irq
-or
- ncr5380=base,irq,dma
- ncr53c400=base,irq
+ ncr5380=addr,irq
+ ncr53c400=addr,irq
+ ncr53c400a=addr,irq
+ dtc3181e=addr,irq
The driver does not probe for any addresses or ports other than those in
the OVERRIDE or given to the kernel as above.
@@ -36,19 +35,17 @@ This driver provides some information on what it has detected in
/proc/scsi/g_NCR5380/x where x is the scsi card number as detected at boot
time. More info to come in the future.
-When NCR53c400 support is compiled in, BIOS parameters will be returned by
-the driver (the raw 5380 driver does not and I don't plan to fiddle with
-it!).
-
This driver works as a module.
When included as a module, parameters can be passed on the insmod/modprobe
command line:
ncr_irq=xx the interrupt
ncr_addr=xx the port or base address (for port or memory
mapped, resp.)
- ncr_dma=xx the DMA
ncr_5380=1 to set up for a NCR5380 board
ncr_53c400=1 to set up for a NCR53C400 board
+ ncr_53c400a=1 to set up for a NCR53C400A board
+ dtc_3181e=1 to set up for a Domex Technology Corp 3181E board
+ hp_c2502=1 to set up for a Hewlett Packard C2502 board
e.g.
modprobe g_NCR5380 ncr_irq=5 ncr_addr=0x350 ncr_5380=1
for a port mapped NCR5380 board or
diff --git a/Documentation/scsi/scsi-parameters.txt b/Documentation/scsi/scsi-parameters.txt
index 2bfd6f6d2d3d..1241ac11edb1 100644
--- a/Documentation/scsi/scsi-parameters.txt
+++ b/Documentation/scsi/scsi-parameters.txt
@@ -27,13 +27,15 @@ parameters may be changed at runtime by the command
aic79xx= [HW,SCSI]
See Documentation/scsi/aic79xx.txt.
- atascsi= [HW,SCSI] Atari SCSI
+ atascsi= [HW,SCSI]
+ See drivers/scsi/atari_scsi.c.
BusLogic= [HW,SCSI]
See drivers/scsi/BusLogic.c, comment before function
BusLogic_ParseDriverOptions().
dtc3181e= [HW,SCSI]
+ See Documentation/scsi/g_NCR5380.txt.
eata= [HW,SCSI]
@@ -51,8 +53,8 @@ parameters may be changed at runtime by the command
ips= [HW,SCSI] Adaptec / IBM ServeRAID controller
See header of drivers/scsi/ips.c.
- mac5380= [HW,SCSI] Format:
- <can_queue>,<cmd_per_lun>,<sg_tablesize>,<hostid>,<use_tags>
+ mac5380= [HW,SCSI]
+ See drivers/scsi/mac_scsi.c.
max_luns= [SCSI] Maximum number of LUNs to probe.
Should be between 1 and 2^32-1.
@@ -65,10 +67,13 @@ parameters may be changed at runtime by the command
See header of drivers/scsi/NCR_D700.c.
ncr5380= [HW,SCSI]
+ See Documentation/scsi/g_NCR5380.txt.
ncr53c400= [HW,SCSI]
+ See Documentation/scsi/g_NCR5380.txt.
ncr53c400a= [HW,SCSI]
+ See Documentation/scsi/g_NCR5380.txt.
ncr53c406a= [HW,SCSI]
diff --git a/MAINTAINERS b/MAINTAINERS
index 804bc4fd154f..c7dd1a3401e5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -7593,10 +7593,10 @@ M: Michael Schmitz <schmitzmic@gmail.com>
L: linux-scsi@vger.kernel.org
S: Maintained
F: Documentation/scsi/g_NCR5380.txt
+F: Documentation/scsi/dtc3x80.txt
F: drivers/scsi/NCR5380.*
F: drivers/scsi/arm/cumana_1.c
F: drivers/scsi/arm/oak.c
-F: drivers/scsi/atari_NCR5380.c
F: drivers/scsi/atari_scsi.*
F: drivers/scsi/dmx3191d.c
F: drivers/scsi/dtc.*
diff --git a/drivers/ata/pata_icside.c b/drivers/ata/pata_icside.c
index d7c732042a4f..188f2f2eb21f 100644
--- a/drivers/ata/pata_icside.c
+++ b/drivers/ata/pata_icside.c
@@ -294,7 +294,7 @@ static int icside_dma_init(struct pata_icside_info *info)
static struct scsi_host_template pata_icside_sht = {
ATA_BASE_SHT(DRV_NAME),
- .sg_tablesize = SCSI_MAX_SG_CHAIN_SEGMENTS,
+ .sg_tablesize = SG_MAX_SEGMENTS,
.dma_boundary = IOMD_DMA_BOUNDARY,
};
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index b6bf20496021..369a75e1f44e 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -81,7 +81,7 @@ MODULE_PARM_DESC(cmd_sg_entries,
module_param(indirect_sg_entries, uint, 0444);
MODULE_PARM_DESC(indirect_sg_entries,
- "Default max number of gather/scatter entries (default is 12, max is " __stringify(SCSI_MAX_SG_CHAIN_SEGMENTS) ")");
+ "Default max number of gather/scatter entries (default is 12, max is " __stringify(SG_MAX_SEGMENTS) ")");
module_param(allow_ext_sg, bool, 0444);
MODULE_PARM_DESC(allow_ext_sg,
@@ -2819,7 +2819,7 @@ static int srp_add_target(struct srp_host *host, struct srp_target_port *target)
spin_unlock(&host->target_lock);
scsi_scan_target(&target->scsi_host->shost_gendev,
- 0, target->scsi_id, SCAN_WILD_CARD, 0);
+ 0, target->scsi_id, SCAN_WILD_CARD, SCSI_SCAN_INITIAL);
if (srp_connected_ch(target) < target->ch_count ||
target->qp_in_error) {
@@ -3097,7 +3097,7 @@ static int srp_parse_options(const char *buf, struct srp_target_port *target)
case SRP_OPT_SG_TABLESIZE:
if (match_int(args, &token) || token < 1 ||
- token > SCSI_MAX_SG_CHAIN_SEGMENTS) {
+ token > SG_MAX_SEGMENTS) {
pr_warn("bad max sg_tablesize parameter '%s'\n",
p);
goto out;
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index 7ebccfa8072a..7ee1667acde4 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -2281,7 +2281,7 @@ static int mptsas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
dma_addr_out = pci_map_single(ioc->pcidev, bio_data(req->bio),
blk_rq_bytes(req), PCI_DMA_BIDIRECTIONAL);
- if (!dma_addr_out)
+ if (pci_dma_mapping_error(ioc->pcidev, dma_addr_out))
goto put_mf;
ioc->add_sge(psge, flagsLength, dma_addr_out);
psge += ioc->SGE_size;
@@ -2296,7 +2296,7 @@ static int mptsas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
flagsLength |= blk_rq_bytes(rsp) + 4;
dma_addr_in = pci_map_single(ioc->pcidev, bio_data(rsp->bio),
blk_rq_bytes(rsp), PCI_DMA_BIDIRECTIONAL);
- if (!dma_addr_in)
+ if (pci_dma_mapping_error(ioc->pcidev, dma_addr_in))
goto unmap;
ioc->add_sge(psge, flagsLength, dma_addr_in);
diff --git a/drivers/message/fusion/mptspi.c b/drivers/message/fusion/mptspi.c
index 613231c16194..031e088edb5e 100644
--- a/drivers/message/fusion/mptspi.c
+++ b/drivers/message/fusion/mptspi.c
@@ -1150,7 +1150,7 @@ static void mpt_work_wrapper(struct work_struct *work)
}
shost_printk(KERN_INFO, shost, MYIOC_s_FMT
"Integrated RAID detects new device %d\n", ioc->name, disk);
- scsi_scan_target(&ioc->sh->shost_gendev, 1, disk, 0, 1);
+ scsi_scan_target(&ioc->sh->shost_gendev, 1, disk, 0, SCSI_SCAN_RESCAN);
}
diff --git a/drivers/s390/scsi/zfcp_unit.c b/drivers/s390/scsi/zfcp_unit.c
index 157d3d203ba1..9310a547b89f 100644
--- a/drivers/s390/scsi/zfcp_unit.c
+++ b/drivers/s390/scsi/zfcp_unit.c
@@ -26,7 +26,8 @@ void zfcp_unit_scsi_scan(struct zfcp_unit *unit)
lun = scsilun_to_int((struct scsi_lun *) &unit->fcp_lun);
if (rport && rport->port_state == FC_PORTSTATE_ONLINE)
- scsi_scan_target(&rport->dev, 0, rport->scsi_target_id, lun, 1);
+ scsi_scan_target(&rport->dev, 0, rport->scsi_target_id, lun,
+ SCSI_SCAN_MANUAL);
}
static void zfcp_unit_scsi_scan_work(struct work_struct *work)
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index e80768f8e579..98e5d51a3346 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -17,6 +17,7 @@ config SCSI
tristate "SCSI device support"
depends on BLOCK
select SCSI_DMA if HAS_DMA
+ select SG_POOL
---help---
If you want to use a SCSI hard disk, SCSI tape drive, SCSI CD-ROM or
any other SCSI device under Linux, say Y and make sure that you know
@@ -202,12 +203,12 @@ config SCSI_ENCLOSURE
certain enclosure conditions to be reported and is not required.
config SCSI_CONSTANTS
- bool "Verbose SCSI error reporting (kernel size +=75K)"
+ bool "Verbose SCSI error reporting (kernel size += 36K)"
depends on SCSI
help
The error messages regarding your SCSI hardware will be easier to
understand if you say Y here; it will enlarge your kernel by about
- 75 KB. If in doubt, say Y.
+ 36 KB. If in doubt, say Y.
config SCSI_LOGGING
bool "SCSI logging facility"
@@ -813,17 +814,6 @@ config SCSI_GENERIC_NCR5380_MMIO
To compile this driver as a module, choose M here: the
module will be called g_NCR5380_mmio.
-config SCSI_GENERIC_NCR53C400
- bool "Enable NCR53c400 extensions"
- depends on SCSI_GENERIC_NCR5380
- help
- This enables certain optimizations for the NCR53c400 SCSI cards.
- You might as well try it out. Note that this driver will only probe
- for the Trantor T130B in its default configuration; you might have
- to pass a command line option to the kernel at boot time if it does
- not detect your card. See the file
- <file:Documentation/scsi/g_NCR5380.txt> for details.
-
config SCSI_IPS
tristate "IBM ServeRAID support"
depends on PCI && SCSI
diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c
index 3eff2a69fe08..43908bbb3b23 100644
--- a/drivers/scsi/NCR5380.c
+++ b/drivers/scsi/NCR5380.c
@@ -29,29 +29,9 @@
* Ronald van Cuijlenborg, Alan Cox and others.
*/
-/*
- * Further development / testing that should be done :
- * 1. Cleanup the NCR5380_transfer_dma function and DMA operation complete
- * code so that everything does the same thing that's done at the
- * end of a pseudo-DMA read operation.
- *
- * 2. Fix REAL_DMA (interrupt driven, polled works fine) -
- * basically, transfer size needs to be reduced by one
- * and the last byte read as is done with PSEUDO_DMA.
- *
- * 4. Test SCSI-II tagged queueing (I have no devices which support
- * tagged queueing)
- */
+/* Ported to Atari by Roman Hodek and others. */
-#ifndef notyet
-#undef REAL_DMA
-#endif
-
-#ifdef BOARD_REQUIRES_NO_DELAY
-#define io_recovery_delay(x)
-#else
-#define io_recovery_delay(x) udelay(x)
-#endif
+/* Adapted for the Sun 3 by Sam Creasey. */
/*
* Design
@@ -126,17 +106,10 @@
* DIFFERENTIAL - if defined, NCR53c81 chips will use external differential
* transceivers.
*
- * DONT_USE_INTR - if defined, never use interrupts, even if we probe or
- * override-configure an IRQ.
- *
* PSEUDO_DMA - if defined, PSEUDO DMA is used during the data transfer phases.
*
* REAL_DMA - if defined, REAL DMA is used during the data transfer phases.
*
- * REAL_DMA_POLL - if defined, REAL DMA is used but the driver doesn't
- * rely on phase mismatch and EOP interrupts to determine end
- * of phase.
- *
* These macros MUST be defined :
*
* NCR5380_read(register) - read from the specified register
@@ -147,29 +120,29 @@
* specific implementation of the NCR5380
*
* Either real DMA *or* pseudo DMA may be implemented
- * REAL functions :
- * NCR5380_REAL_DMA should be defined if real DMA is to be used.
- * Note that the DMA setup functions should return the number of bytes
- * that they were able to program the controller for.
- *
- * Also note that generic i386/PC versions of these macros are
- * available as NCR5380_i386_dma_write_setup,
- * NCR5380_i386_dma_read_setup, and NCR5380_i386_dma_residual.
*
* NCR5380_dma_write_setup(instance, src, count) - initialize
* NCR5380_dma_read_setup(instance, dst, count) - initialize
* NCR5380_dma_residual(instance); - residual count
*
- * PSEUDO functions :
- * NCR5380_pwrite(instance, src, count)
- * NCR5380_pread(instance, dst, count);
- *
* The generic driver is initialized by calling NCR5380_init(instance),
* after setting the appropriate host specific fields and ID. If the
* driver wishes to autoprobe for an IRQ line, the NCR5380_probe_irq(instance,
* possible) function may be used.
*/
+#ifndef NCR5380_io_delay
+#define NCR5380_io_delay(x)
+#endif
+
+#ifndef NCR5380_acquire_dma_irq
+#define NCR5380_acquire_dma_irq(x) (1)
+#endif
+
+#ifndef NCR5380_release_dma_irq
+#define NCR5380_release_dma_irq(x)
+#endif
+
static int do_abort(struct Scsi_Host *);
static void do_reset(struct Scsi_Host *);
@@ -280,12 +253,20 @@ static struct {
{0, NULL}
},
basrs[] = {
+ {BASR_END_DMA_TRANSFER, "END OF DMA"},
+ {BASR_DRQ, "DRQ"},
+ {BASR_PARITY_ERROR, "PARITY ERROR"},
+ {BASR_IRQ, "IRQ"},
+ {BASR_PHASE_MATCH, "PHASE MATCH"},
+ {BASR_BUSY_ERROR, "BUSY ERROR"},
{BASR_ATN, "ATN"},
{BASR_ACK, "ACK"},
{0, NULL}
},
icrs[] = {
{ICR_ASSERT_RST, "ASSERT RST"},
+ {ICR_ARBITRATION_PROGRESS, "ARB. IN PROGRESS"},
+ {ICR_ARBITRATION_LOST, "LOST ARB."},
{ICR_ASSERT_ACK, "ASSERT ACK"},
{ICR_ASSERT_BSY, "ASSERT BSY"},
{ICR_ASSERT_SEL, "ASSERT SEL"},
@@ -294,14 +275,14 @@ icrs[] = {
{0, NULL}
},
mrs[] = {
- {MR_BLOCK_DMA_MODE, "MODE BLOCK DMA"},
- {MR_TARGET, "MODE TARGET"},
- {MR_ENABLE_PAR_CHECK, "MODE PARITY CHECK"},
- {MR_ENABLE_PAR_INTR, "MODE PARITY INTR"},
- {MR_ENABLE_EOP_INTR, "MODE EOP INTR"},
- {MR_MONITOR_BSY, "MODE MONITOR BSY"},
- {MR_DMA_MODE, "MODE DMA"},
- {MR_ARBITRATE, "MODE ARBITRATION"},
+ {MR_BLOCK_DMA_MODE, "BLOCK DMA MODE"},
+ {MR_TARGET, "TARGET"},
+ {MR_ENABLE_PAR_CHECK, "PARITY CHECK"},
+ {MR_ENABLE_PAR_INTR, "PARITY INTR"},
+ {MR_ENABLE_EOP_INTR, "EOP INTR"},
+ {MR_MONITOR_BSY, "MONITOR BSY"},
+ {MR_DMA_MODE, "DMA MODE"},
+ {MR_ARBITRATE, "ARBITRATE"},
{0, NULL}
};
@@ -322,23 +303,23 @@ static void NCR5380_print(struct Scsi_Host *instance)
icr = NCR5380_read(INITIATOR_COMMAND_REG);
basr = NCR5380_read(BUS_AND_STATUS_REG);
- printk("STATUS_REG: %02x ", status);
+ printk(KERN_DEBUG "SR = 0x%02x : ", status);
for (i = 0; signals[i].mask; ++i)
if (status & signals[i].mask)
- printk(",%s", signals[i].name);
- printk("\nBASR: %02x ", basr);
+ printk(KERN_CONT "%s, ", signals[i].name);
+ printk(KERN_CONT "\nBASR = 0x%02x : ", basr);
for (i = 0; basrs[i].mask; ++i)
if (basr & basrs[i].mask)
- printk(",%s", basrs[i].name);
- printk("\nICR: %02x ", icr);
+ printk(KERN_CONT "%s, ", basrs[i].name);
+ printk(KERN_CONT "\nICR = 0x%02x : ", icr);
for (i = 0; icrs[i].mask; ++i)
if (icr & icrs[i].mask)
- printk(",%s", icrs[i].name);
- printk("\nMODE: %02x ", mr);
+ printk(KERN_CONT "%s, ", icrs[i].name);
+ printk(KERN_CONT "\nMR = 0x%02x : ", mr);
for (i = 0; mrs[i].mask; ++i)
if (mr & mrs[i].mask)
- printk(",%s", mrs[i].name);
- printk("\n");
+ printk(KERN_CONT "%s, ", mrs[i].name);
+ printk(KERN_CONT "\n");
}
static struct {
@@ -477,52 +458,18 @@ static void prepare_info(struct Scsi_Host *instance)
instance->base, instance->irq,
instance->can_queue, instance->cmd_per_lun,
instance->sg_tablesize, instance->this_id,
- hostdata->flags & FLAG_NO_DMA_FIXUP ? "NO_DMA_FIXUP " : "",
+ hostdata->flags & FLAG_DMA_FIXUP ? "DMA_FIXUP " : "",
hostdata->flags & FLAG_NO_PSEUDO_DMA ? "NO_PSEUDO_DMA " : "",
hostdata->flags & FLAG_TOSHIBA_DELAY ? "TOSHIBA_DELAY " : "",
-#ifdef AUTOPROBE_IRQ
- "AUTOPROBE_IRQ "
-#endif
#ifdef DIFFERENTIAL
"DIFFERENTIAL "
#endif
-#ifdef REAL_DMA
- "REAL_DMA "
-#endif
-#ifdef REAL_DMA_POLL
- "REAL_DMA_POLL "
-#endif
#ifdef PARITY
"PARITY "
#endif
-#ifdef PSEUDO_DMA
- "PSEUDO_DMA "
-#endif
"");
}
-#ifdef PSEUDO_DMA
-static int __maybe_unused NCR5380_write_info(struct Scsi_Host *instance,
- char *buffer, int length)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
-
- hostdata->spin_max_r = 0;
- hostdata->spin_max_w = 0;
- return 0;
-}
-
-static int __maybe_unused NCR5380_show_info(struct seq_file *m,
- struct Scsi_Host *instance)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
-
- seq_printf(m, "Highwater I/O busy spin counts: write %d, read %d\n",
- hostdata->spin_max_w, hostdata->spin_max_r);
- return 0;
-}
-#endif
-
/**
* NCR5380_init - initialise an NCR5380
* @instance: adapter to configure
@@ -543,6 +490,8 @@ static int NCR5380_init(struct Scsi_Host *instance, int flags)
int i;
unsigned long deadline;
+ instance->max_lun = 7;
+
hostdata->host = instance;
hostdata->id_mask = 1 << instance->this_id;
hostdata->id_higher_mask = 0;
@@ -551,9 +500,8 @@ static int NCR5380_init(struct Scsi_Host *instance, int flags)
hostdata->id_higher_mask |= i;
for (i = 0; i < 8; ++i)
hostdata->busy[i] = 0;
-#ifdef REAL_DMA
- hostdata->dmalen = 0;
-#endif
+ hostdata->dma_len = 0;
+
spin_lock_init(&hostdata->lock);
hostdata->connected = NULL;
hostdata->sensing = NULL;
@@ -719,6 +667,9 @@ static int NCR5380_queue_command(struct Scsi_Host *instance,
cmd->result = 0;
+ if (!NCR5380_acquire_dma_irq(instance))
+ return SCSI_MLQUEUE_HOST_BUSY;
+
spin_lock_irqsave(&hostdata->lock, flags);
/*
@@ -743,6 +694,19 @@ static int NCR5380_queue_command(struct Scsi_Host *instance,
return 0;
}
+static inline void maybe_release_dma_irq(struct Scsi_Host *instance)
+{
+ struct NCR5380_hostdata *hostdata = shost_priv(instance);
+
+ /* Caller does the locking needed to set & test these data atomically */
+ if (list_empty(&hostdata->disconnected) &&
+ list_empty(&hostdata->unissued) &&
+ list_empty(&hostdata->autosense) &&
+ !hostdata->connected &&
+ !hostdata->selecting)
+ NCR5380_release_dma_irq(instance);
+}
+
/**
* dequeue_next_cmd - dequeue a command for processing
* @instance: the scsi host instance
@@ -844,17 +808,14 @@ static void NCR5380_main(struct work_struct *work)
if (!NCR5380_select(instance, cmd)) {
dsprintk(NDEBUG_MAIN, instance, "main: select complete\n");
+ maybe_release_dma_irq(instance);
} else {
dsprintk(NDEBUG_MAIN | NDEBUG_QUEUES, instance,
"main: select failed, returning %p to queue\n", cmd);
requeue_cmd(instance, cmd);
}
}
- if (hostdata->connected
-#ifdef REAL_DMA
- && !hostdata->dmalen
-#endif
- ) {
+ if (hostdata->connected && !hostdata->dma_len) {
dsprintk(NDEBUG_MAIN, instance, "main: performing information transfer\n");
NCR5380_information_transfer(instance);
done = 0;
@@ -865,7 +826,88 @@ static void NCR5380_main(struct work_struct *work)
} while (!done);
}
-#ifndef DONT_USE_INTR
+/*
+ * NCR5380_dma_complete - finish DMA transfer
+ * @instance: the scsi host instance
+ *
+ * Called by the interrupt handler when DMA finishes or a phase
+ * mismatch occurs (which would end the DMA transfer).
+ */
+
+static void NCR5380_dma_complete(struct Scsi_Host *instance)
+{
+ struct NCR5380_hostdata *hostdata = shost_priv(instance);
+ int transferred;
+ unsigned char **data;
+ int *count;
+ int saved_data = 0, overrun = 0;
+ unsigned char p;
+
+ if (hostdata->read_overruns) {
+ p = hostdata->connected->SCp.phase;
+ if (p & SR_IO) {
+ udelay(10);
+ if ((NCR5380_read(BUS_AND_STATUS_REG) &
+ (BASR_PHASE_MATCH | BASR_ACK)) ==
+ (BASR_PHASE_MATCH | BASR_ACK)) {
+ saved_data = NCR5380_read(INPUT_DATA_REG);
+ overrun = 1;
+ dsprintk(NDEBUG_DMA, instance, "read overrun handled\n");
+ }
+ }
+ }
+
+#ifdef CONFIG_SUN3
+ if ((sun3scsi_dma_finish(rq_data_dir(hostdata->connected->request)))) {
+ pr_err("scsi%d: overrun in UDC counter -- not prepared to deal with this!\n",
+ instance->host_no);
+ BUG();
+ }
+
+ if ((NCR5380_read(BUS_AND_STATUS_REG) & (BASR_PHASE_MATCH | BASR_ACK)) ==
+ (BASR_PHASE_MATCH | BASR_ACK)) {
+ pr_err("scsi%d: BASR %02x\n", instance->host_no,
+ NCR5380_read(BUS_AND_STATUS_REG));
+ pr_err("scsi%d: bus stuck in data phase -- probably a single byte overrun!\n",
+ instance->host_no);
+ BUG();
+ }
+#endif
+
+ NCR5380_write(MODE_REG, MR_BASE);
+ NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
+ NCR5380_read(RESET_PARITY_INTERRUPT_REG);
+
+ transferred = hostdata->dma_len - NCR5380_dma_residual(instance);
+ hostdata->dma_len = 0;
+
+ data = (unsigned char **)&hostdata->connected->SCp.ptr;
+ count = &hostdata->connected->SCp.this_residual;
+ *data += transferred;
+ *count -= transferred;
+
+ if (hostdata->read_overruns) {
+ int cnt, toPIO;
+
+ if ((NCR5380_read(STATUS_REG) & PHASE_MASK) == p && (p & SR_IO)) {
+ cnt = toPIO = hostdata->read_overruns;
+ if (overrun) {
+ dsprintk(NDEBUG_DMA, instance,
+ "Got an input overrun, using saved byte\n");
+ *(*data)++ = saved_data;
+ (*count)--;
+ cnt--;
+ toPIO--;
+ }
+ if (toPIO > 0) {
+ dsprintk(NDEBUG_DMA, instance,
+ "Doing %d byte PIO to 0x%p\n", cnt, *data);
+ NCR5380_transfer_pio(instance, &p, &cnt, data);
+ *count -= toPIO - cnt;
+ }
+ }
+ }
+}
/**
* NCR5380_intr - generic NCR5380 irq handler
@@ -901,7 +943,7 @@ static void NCR5380_main(struct work_struct *work)
* the Busy Monitor interrupt is enabled together with DMA Mode.
*/
-static irqreturn_t NCR5380_intr(int irq, void *dev_id)
+static irqreturn_t __maybe_unused NCR5380_intr(int irq, void *dev_id)
{
struct Scsi_Host *instance = dev_id;
struct NCR5380_hostdata *hostdata = shost_priv(instance);
@@ -919,7 +961,6 @@ static irqreturn_t NCR5380_intr(int irq, void *dev_id)
dsprintk(NDEBUG_INTR, instance, "IRQ %d, BASR 0x%02x, SR 0x%02x, MR 0x%02x\n",
irq, basr, sr, mr);
-#if defined(REAL_DMA)
if ((mr & MR_DMA_MODE) || (mr & MR_MONITOR_BSY)) {
/* Probably End of DMA, Phase Mismatch or Loss of BSY.
* We ack IRQ after clearing Mode Register. Workarounds
@@ -928,26 +969,14 @@ static irqreturn_t NCR5380_intr(int irq, void *dev_id)
dsprintk(NDEBUG_INTR, instance, "interrupt in DMA mode\n");
- int transferred;
-
- if (!hostdata->connected)
- panic("scsi%d : DMA interrupt with no connected cmd\n",
- instance->hostno);
-
- transferred = hostdata->dmalen - NCR5380_dma_residual(instance);
- hostdata->connected->SCp.this_residual -= transferred;
- hostdata->connected->SCp.ptr += transferred;
- hostdata->dmalen = 0;
-
- /* FIXME: we need to poll briefly then defer a workqueue task ! */
- NCR5380_poll_politely(hostdata, BUS_AND_STATUS_REG, BASR_ACK, 0, 2 * HZ);
-
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- NCR5380_write(MODE_REG, MR_BASE);
- NCR5380_read(RESET_PARITY_INTERRUPT_REG);
- } else
-#endif /* REAL_DMA */
- if ((NCR5380_read(CURRENT_SCSI_DATA_REG) & hostdata->id_mask) &&
+ if (hostdata->connected) {
+ NCR5380_dma_complete(instance);
+ queue_work(hostdata->work_q, &hostdata->main_task);
+ } else {
+ NCR5380_write(MODE_REG, MR_BASE);
+ NCR5380_read(RESET_PARITY_INTERRUPT_REG);
+ }
+ } else if ((NCR5380_read(CURRENT_SCSI_DATA_REG) & hostdata->id_mask) &&
(sr & (SR_SEL | SR_IO | SR_BSY | SR_RST)) == (SR_SEL | SR_IO)) {
/* Probably reselected */
NCR5380_write(SELECT_ENABLE_REG, 0);
@@ -966,10 +995,16 @@ static irqreturn_t NCR5380_intr(int irq, void *dev_id)
NCR5380_read(RESET_PARITY_INTERRUPT_REG);
dsprintk(NDEBUG_INTR, instance, "unknown interrupt\n");
+#ifdef SUN3_SCSI_VME
+ dregs->csr |= CSR_DMA_ENABLE;
+#endif
}
handled = 1;
} else {
shost_printk(KERN_NOTICE, instance, "interrupt without IRQ bit\n");
+#ifdef SUN3_SCSI_VME
+ dregs->csr |= CSR_DMA_ENABLE;
+#endif
}
spin_unlock_irqrestore(&hostdata->lock, flags);
@@ -977,8 +1012,6 @@ static irqreturn_t NCR5380_intr(int irq, void *dev_id)
return IRQ_RETVAL(handled);
}
-#endif
-
/*
* Function : int NCR5380_select(struct Scsi_Host *instance,
* struct scsi_cmnd *cmd)
@@ -1217,14 +1250,6 @@ static struct scsi_cmnd *NCR5380_select(struct Scsi_Host *instance,
* was true but before BSY was false during selection, the information
* transfer phase should be a MESSAGE OUT phase so that we can send the
* IDENTIFY message.
- *
- * If SCSI-II tagged queuing is enabled, we also send a SIMPLE_QUEUE_TAG
- * message (2 bytes) with a tag ID that we increment with every command
- * until it wraps back to 0.
- *
- * XXX - it turns out that there are some broken SCSI-II devices,
- * which claim to support tagged queuing but fail when more than
- * some number of commands are issued at once.
*/
/* Wait for start of REQ/ACK handshake */
@@ -1247,9 +1272,6 @@ static struct scsi_cmnd *NCR5380_select(struct Scsi_Host *instance,
tmp[0] = IDENTIFY(((instance->irq == NO_IRQ) ? 0 : 1), cmd->device->lun);
len = 1;
- cmd->tag = 0;
-
- /* Send message(s) */
data = tmp;
phase = PHASE_MSGOUT;
NCR5380_transfer_pio(instance, &phase, &len, &data);
@@ -1259,6 +1281,10 @@ static struct scsi_cmnd *NCR5380_select(struct Scsi_Host *instance,
hostdata->connected = cmd;
hostdata->busy[cmd->device->id] |= 1 << cmd->device->lun;
+#ifdef SUN3_SCSI_VME
+ dregs->csr |= CSR_INTR;
+#endif
+
initialize_SCp(cmd);
cmd = NULL;
@@ -1495,7 +1521,6 @@ timeout:
return -1;
}
-#if defined(REAL_DMA) || defined(PSEUDO_DMA) || defined (REAL_DMA_POLL)
/*
* Function : int NCR5380_transfer_dma (struct Scsi_Host *instance,
* unsigned char *phase, int *count, unsigned char **data)
@@ -1520,53 +1545,47 @@ static int NCR5380_transfer_dma(struct Scsi_Host *instance,
unsigned char **data)
{
struct NCR5380_hostdata *hostdata = shost_priv(instance);
- register int c = *count;
- register unsigned char p = *phase;
- register unsigned char *d = *data;
+ int c = *count;
+ unsigned char p = *phase;
+ unsigned char *d = *data;
unsigned char tmp;
- int foo;
-#if defined(REAL_DMA_POLL)
- int cnt, toPIO;
- unsigned char saved_data = 0, overrun = 0, residue;
-#endif
+ int result = 0;
if ((tmp = (NCR5380_read(STATUS_REG) & PHASE_MASK)) != p) {
*phase = tmp;
return -1;
}
-#if defined(REAL_DMA) || defined(REAL_DMA_POLL)
+
+ hostdata->connected->SCp.phase = p;
+
if (p & SR_IO) {
- if (!(hostdata->flags & FLAG_NO_DMA_FIXUPS))
- c -= 2;
+ if (hostdata->read_overruns)
+ c -= hostdata->read_overruns;
+ else if (hostdata->flags & FLAG_DMA_FIXUP)
+ --c;
}
- hostdata->dma_len = (p & SR_IO) ? NCR5380_dma_read_setup(instance, d, c) : NCR5380_dma_write_setup(instance, d, c);
dsprintk(NDEBUG_DMA, instance, "initializing DMA %s: length %d, address %p\n",
- (p & SR_IO) ? "receive" : "send", c, *data);
+ (p & SR_IO) ? "receive" : "send", c, d);
+
+#ifdef CONFIG_SUN3
+ /* send start chain */
+ sun3scsi_dma_start(c, *data);
#endif
NCR5380_write(TARGET_COMMAND_REG, PHASE_SR_TO_TCR(p));
-
-#ifdef REAL_DMA
NCR5380_write(MODE_REG, MR_BASE | MR_DMA_MODE | MR_MONITOR_BSY |
MR_ENABLE_EOP_INTR);
-#elif defined(REAL_DMA_POLL)
- NCR5380_write(MODE_REG, MR_BASE | MR_DMA_MODE | MR_MONITOR_BSY);
-#else
- /*
- * Note : on my sample board, watch-dog timeouts occurred when interrupts
- * were not disabled for the duration of a single DMA transfer, from
- * before the setting of DMA mode to after transfer of the last byte.
- */
-
- if (hostdata->flags & FLAG_NO_DMA_FIXUP)
- NCR5380_write(MODE_REG, MR_BASE | MR_DMA_MODE | MR_MONITOR_BSY |
- MR_ENABLE_EOP_INTR);
- else
- NCR5380_write(MODE_REG, MR_BASE | MR_DMA_MODE | MR_MONITOR_BSY);
-#endif /* def REAL_DMA */
- dprintk(NDEBUG_DMA, "scsi%d : mode reg = 0x%X\n", instance->host_no, NCR5380_read(MODE_REG));
+ if (!(hostdata->flags & FLAG_LATE_DMA_SETUP)) {
+ /* On the Medusa, it is a must to initialize the DMA before
+ * starting the NCR. This is also the cleaner way for the TT.
+ */
+ if (p & SR_IO)
+ result = NCR5380_dma_recv_setup(instance, d, c);
+ else
+ result = NCR5380_dma_send_setup(instance, d, c);
+ }
/*
* On the PAS16 at least I/O recovery delays are not needed here.
@@ -1574,24 +1593,49 @@ static int NCR5380_transfer_dma(struct Scsi_Host *instance,
*/
if (p & SR_IO) {
- io_recovery_delay(1);
+ NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
+ NCR5380_io_delay(1);
NCR5380_write(START_DMA_INITIATOR_RECEIVE_REG, 0);
} else {
- io_recovery_delay(1);
+ NCR5380_io_delay(1);
NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_DATA);
- io_recovery_delay(1);
+ NCR5380_io_delay(1);
NCR5380_write(START_DMA_SEND_REG, 0);
- io_recovery_delay(1);
+ NCR5380_io_delay(1);
}
-#if defined(REAL_DMA_POLL)
- do {
- tmp = NCR5380_read(BUS_AND_STATUS_REG);
- } while ((tmp & BASR_PHASE_MATCH) && !(tmp & (BASR_BUSY_ERROR | BASR_END_DMA_TRANSFER)));
+#ifdef CONFIG_SUN3
+#ifdef SUN3_SCSI_VME
+ dregs->csr |= CSR_DMA_ENABLE;
+#endif
+ sun3_dma_active = 1;
+#endif
+
+ if (hostdata->flags & FLAG_LATE_DMA_SETUP) {
+ /* On the Falcon, the DMA setup must be done after the last
+ * NCR access, else the DMA setup gets trashed!
+ */
+ if (p & SR_IO)
+ result = NCR5380_dma_recv_setup(instance, d, c);
+ else
+ result = NCR5380_dma_send_setup(instance, d, c);
+ }
+
+ /* On failure, NCR5380_dma_xxxx_setup() returns a negative int. */
+ if (result < 0)
+ return result;
+
+ /* For real DMA, result is the byte count. DMA interrupt is expected. */
+ if (result > 0) {
+ hostdata->dma_len = result;
+ return 0;
+ }
+
+ /* The result is zero iff pseudo DMA send/receive was completed. */
+ hostdata->dma_len = c;
/*
- * At this point, either we've completed DMA, or we have a phase mismatch,
- * or we've unexpectedly lost BUSY (which is a real error).
+ * A note regarding the DMA errata workarounds for early NMOS silicon.
*
* For DMA sends, we want to wait until the last byte has been
* transferred out over the bus before we turn off DMA mode. Alas, there
@@ -1618,79 +1662,16 @@ static int NCR5380_transfer_dma(struct Scsi_Host *instance,
* properly, or the target switches to MESSAGE IN phase to signal a
* disconnection (either operation bringing the DMA to a clean halt).
* However, in order to handle scatter-receive, we must work around the
- * problem. The chosen fix is to DMA N-2 bytes, then check for the
+ * problem. The chosen fix is to DMA fewer bytes, then check for the
* condition before taking the NCR5380 out of DMA mode. One or two extra
* bytes are transferred via PIO as necessary to fill out the original
* request.
*/
- if (p & SR_IO) {
- if (!(hostdata->flags & FLAG_NO_DMA_FIXUPS)) {
- udelay(10);
- if ((NCR5380_read(BUS_AND_STATUS_REG) & (BASR_PHASE_MATCH | BASR_ACK)) ==
- (BASR_PHASE_MATCH | BASR_ACK)) {
- saved_data = NCR5380_read(INPUT_DATA_REGISTER);
- overrun = 1;
- }
- }
- } else {
- int limit = 100;
- while (((tmp = NCR5380_read(BUS_AND_STATUS_REG)) & BASR_ACK) || (NCR5380_read(STATUS_REG) & SR_REQ)) {
- if (!(tmp & BASR_PHASE_MATCH))
- break;
- if (--limit < 0)
- break;
- }
- }
-
- dsprintk(NDEBUG_DMA, "polled DMA transfer complete, basr 0x%02x, sr 0x%02x\n",
- tmp, NCR5380_read(STATUS_REG));
-
- NCR5380_write(MODE_REG, MR_BASE);
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
-
- residue = NCR5380_dma_residual(instance);
- c -= residue;
- *count -= c;
- *data += c;
- *phase = NCR5380_read(STATUS_REG) & PHASE_MASK;
-
- if (!(hostdata->flags & FLAG_NO_DMA_FIXUPS) &&
- *phase == p && (p & SR_IO) && residue == 0) {
- if (overrun) {
- dprintk(NDEBUG_DMA, "Got an input overrun, using saved byte\n");
- **data = saved_data;
- *data += 1;
- *count -= 1;
- cnt = toPIO = 1;
- } else {
- printk("No overrun??\n");
- cnt = toPIO = 2;
- }
- dprintk(NDEBUG_DMA, "Doing %d-byte PIO to 0x%X\n", cnt, *data);
- NCR5380_transfer_pio(instance, phase, &cnt, data);
- *count -= toPIO - cnt;
- }
-
- dprintk(NDEBUG_DMA, "Return with data ptr = 0x%X, count %d, last 0x%X, next 0x%X\n", *data, *count, *(*data + *count - 1), *(*data + *count));
- return 0;
-
-#elif defined(REAL_DMA)
- return 0;
-#else /* defined(REAL_DMA_POLL) */
- if (p & SR_IO) {
- foo = NCR5380_pread(instance, d,
- hostdata->flags & FLAG_NO_DMA_FIXUP ? c : c - 1);
- if (!foo && !(hostdata->flags & FLAG_NO_DMA_FIXUP)) {
+ if (hostdata->flags & FLAG_DMA_FIXUP) {
+ if (p & SR_IO) {
/*
- * We can't disable DMA mode after successfully transferring
- * what we plan to be the last byte, since that would open up
- * a race condition where if the target asserted REQ before
- * we got the DMA mode reset, the NCR5380 would have latched
- * an additional byte into the INPUT DATA register and we'd
- * have dropped it.
- *
- * The workaround was to transfer one fewer bytes than we
+ * The workaround was to transfer fewer bytes than we
* intended to with the pseudo-DMA read function, wait for
* the chip to latch the last byte, read it, and then disable
* pseudo-DMA mode.
@@ -1706,19 +1687,16 @@ static int NCR5380_transfer_dma(struct Scsi_Host *instance,
if (NCR5380_poll_politely(instance, BUS_AND_STATUS_REG,
BASR_DRQ, BASR_DRQ, HZ) < 0) {
- foo = -1;
+ result = -1;
shost_printk(KERN_ERR, instance, "PDMA read: DRQ timeout\n");
}
if (NCR5380_poll_politely(instance, STATUS_REG,
SR_REQ, 0, HZ) < 0) {
- foo = -1;
+ result = -1;
shost_printk(KERN_ERR, instance, "PDMA read: !REQ timeout\n");
}
- d[c - 1] = NCR5380_read(INPUT_DATA_REG);
- }
- } else {
- foo = NCR5380_pwrite(instance, d, c);
- if (!foo && !(hostdata->flags & FLAG_NO_DMA_FIXUP)) {
+ d[*count - 1] = NCR5380_read(INPUT_DATA_REG);
+ } else {
/*
* Wait for the last byte to be sent. If REQ is being asserted for
* the byte we're interested, we'll ACK it and it will go false.
@@ -1726,21 +1704,15 @@ static int NCR5380_transfer_dma(struct Scsi_Host *instance,
if (NCR5380_poll_politely2(instance,
BUS_AND_STATUS_REG, BASR_DRQ, BASR_DRQ,
BUS_AND_STATUS_REG, BASR_PHASE_MATCH, 0, HZ) < 0) {
- foo = -1;
+ result = -1;
shost_printk(KERN_ERR, instance, "PDMA write: DRQ and phase timeout\n");
}
}
}
- NCR5380_write(MODE_REG, MR_BASE);
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- NCR5380_read(RESET_PARITY_INTERRUPT_REG);
- *data = d + c;
- *count = 0;
- *phase = NCR5380_read(STATUS_REG) & PHASE_MASK;
- return foo;
-#endif /* def REAL_DMA */
+
+ NCR5380_dma_complete(instance);
+ return result;
}
-#endif /* defined(REAL_DMA) | defined(PSEUDO_DMA) */
/*
* Function : NCR5380_information_transfer (struct Scsi_Host *instance)
@@ -1770,6 +1742,10 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance)
unsigned char phase, tmp, extended_msg[10], old_phase = 0xff;
struct scsi_cmnd *cmd;
+#ifdef SUN3_SCSI_VME
+ dregs->csr |= CSR_INTR;
+#endif
+
while ((cmd = hostdata->connected)) {
struct NCR5380_cmd *ncmd = scsi_cmd_priv(cmd);
@@ -1781,6 +1757,31 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance)
old_phase = phase;
NCR5380_dprint_phase(NDEBUG_INFORMATION, instance);
}
+#ifdef CONFIG_SUN3
+ if (phase == PHASE_CMDOUT) {
+ void *d;
+ unsigned long count;
+
+ if (!cmd->SCp.this_residual && cmd->SCp.buffers_residual) {
+ count = cmd->SCp.buffer->length;
+ d = sg_virt(cmd->SCp.buffer);
+ } else {
+ count = cmd->SCp.this_residual;
+ d = cmd->SCp.ptr;
+ }
+
+ if (sun3_dma_setup_done != cmd &&
+ sun3scsi_dma_xfer_len(count, cmd) > 0) {
+ sun3scsi_dma_setup(instance, d, count,
+ rq_data_dir(cmd->request));
+ sun3_dma_setup_done = cmd;
+ }
+#ifdef SUN3_SCSI_VME
+ dregs->csr |= CSR_INTR;
+#endif
+ }
+#endif /* CONFIG_SUN3 */
+
if (sink && (phase != PHASE_MSGOUT)) {
NCR5380_write(TARGET_COMMAND_REG, PHASE_SR_TO_TCR(tmp));
@@ -1831,13 +1832,11 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance)
* in an unconditional loop.
*/
-#if defined(PSEUDO_DMA) || defined(REAL_DMA_POLL)
transfersize = 0;
- if (!cmd->device->borken &&
- !(hostdata->flags & FLAG_NO_PSEUDO_DMA))
+ if (!cmd->device->borken)
transfersize = NCR5380_dma_xfer_len(instance, cmd, phase);
- if (transfersize) {
+ if (transfersize > 0) {
len = transfersize;
if (NCR5380_transfer_dma(instance, &phase,
&len, (unsigned char **)&cmd->SCp.ptr)) {
@@ -1853,11 +1852,8 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance)
do_abort(instance);
cmd->result = DID_ERROR << 16;
/* XXX - need to source or sink data here, as appropriate */
- } else
- cmd->SCp.this_residual -= transfersize - len;
- } else
-#endif /* defined(PSEUDO_DMA) || defined(REAL_DMA_POLL) */
- {
+ }
+ } else {
/* Break up transfer into 3 ms chunks,
* presuming 6 accesses per handshake.
*/
@@ -1868,6 +1864,10 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance)
(unsigned char **)&cmd->SCp.ptr);
cmd->SCp.this_residual -= transfersize - len;
}
+#ifdef CONFIG_SUN3
+ if (sun3_dma_setup_done == cmd)
+ sun3_dma_setup_done = NULL;
+#endif
return;
case PHASE_MSGIN:
len = 1;
@@ -1912,6 +1912,8 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance)
/* Enable reselect interrupts */
NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
+
+ maybe_release_dma_irq(instance);
return;
case MESSAGE_REJECT:
/* Accept message by clearing ACK */
@@ -1944,6 +1946,9 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance)
/* Enable reselect interrupts */
NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
+#ifdef SUN3_SCSI_VME
+ dregs->csr |= CSR_DMA_ENABLE;
+#endif
return;
/*
* The SCSI data pointer is *IMPLICITLY* saved on a disconnect
@@ -2047,6 +2052,7 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance)
hostdata->connected = NULL;
cmd->result = DID_ERROR << 16;
complete_cmd(instance, cmd);
+ maybe_release_dma_irq(instance);
NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
return;
}
@@ -2094,10 +2100,8 @@ static void NCR5380_reselect(struct Scsi_Host *instance)
{
struct NCR5380_hostdata *hostdata = shost_priv(instance);
unsigned char target_mask;
- unsigned char lun, phase;
- int len;
+ unsigned char lun;
unsigned char msg[3];
- unsigned char *data;
struct NCR5380_cmd *ncmd;
struct scsi_cmnd *tmp;
@@ -2139,15 +2143,26 @@ static void NCR5380_reselect(struct Scsi_Host *instance)
return;
}
- len = 1;
- data = msg;
- phase = PHASE_MSGIN;
- NCR5380_transfer_pio(instance, &phase, &len, &data);
+#ifdef CONFIG_SUN3
+ /* acknowledge toggle to MSGIN */
+ NCR5380_write(TARGET_COMMAND_REG, PHASE_SR_TO_TCR(PHASE_MSGIN));
- if (len) {
- do_abort(instance);
- return;
+ /* peek at the byte without really hitting the bus */
+ msg[0] = NCR5380_read(CURRENT_SCSI_DATA_REG);
+#else
+ {
+ int len = 1;
+ unsigned char *data = msg;
+ unsigned char phase = PHASE_MSGIN;
+
+ NCR5380_transfer_pio(instance, &phase, &len, &data);
+
+ if (len) {
+ do_abort(instance);
+ return;
+ }
}
+#endif /* CONFIG_SUN3 */
if (!(msg[0] & 0x80)) {
shost_printk(KERN_ERR, instance, "expecting IDENTIFY message, got ");
@@ -2195,59 +2210,37 @@ static void NCR5380_reselect(struct Scsi_Host *instance)
return;
}
- /* Accept message by clearing ACK */
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
-
- hostdata->connected = tmp;
- dsprintk(NDEBUG_RESELECTION, instance, "nexus established, target %d, lun %llu, tag %d\n",
- scmd_id(tmp), tmp->device->lun, tmp->tag);
-}
+#ifdef CONFIG_SUN3
+ {
+ void *d;
+ unsigned long count;
-/*
- * Function : void NCR5380_dma_complete (struct Scsi_Host *instance)
- *
- * Purpose : called by interrupt handler when DMA finishes or a phase
- * mismatch occurs (which would finish the DMA transfer).
- *
- * Inputs : instance - this instance of the NCR5380.
- *
- * Returns : pointer to the scsi_cmnd structure for which the I_T_L
- * nexus has been reestablished, on failure NULL is returned.
- */
-
-#ifdef REAL_DMA
-static void NCR5380_dma_complete(NCR5380_instance * instance) {
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
- int transferred;
+ if (!tmp->SCp.this_residual && tmp->SCp.buffers_residual) {
+ count = tmp->SCp.buffer->length;
+ d = sg_virt(tmp->SCp.buffer);
+ } else {
+ count = tmp->SCp.this_residual;
+ d = tmp->SCp.ptr;
+ }
- /*
- * XXX this might not be right.
- *
- * Wait for final byte to transfer, ie wait for ACK to go false.
- *
- * We should use the Last Byte Sent bit, unfortunately this is
- * not available on the 5380/5381 (only the various CMOS chips)
- *
- * FIXME: timeout, and need to handle long timeout/irq case
- */
+ if (sun3_dma_setup_done != tmp &&
+ sun3scsi_dma_xfer_len(count, tmp) > 0) {
+ sun3scsi_dma_setup(instance, d, count,
+ rq_data_dir(tmp->request));
+ sun3_dma_setup_done = tmp;
+ }
+ }
- NCR5380_poll_politely(instance, BUS_AND_STATUS_REG, BASR_ACK, 0, 5*HZ);
+ NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_ACK);
+#endif /* CONFIG_SUN3 */
+ /* Accept message by clearing ACK */
NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- /*
- * The only places we should see a phase mismatch and have to send
- * data from the same set of pointers will be the data transfer
- * phases. So, residual, requested length are only important here.
- */
-
- if (!(hostdata->connected->SCp.phase & SR_CD)) {
- transferred = instance->dmalen - NCR5380_dma_residual();
- hostdata->connected->SCp.this_residual -= transferred;
- hostdata->connected->SCp.ptr += transferred;
- }
+ hostdata->connected = tmp;
+ dsprintk(NDEBUG_RESELECTION, instance, "nexus established, target %d, lun %llu\n",
+ scmd_id(tmp), tmp->device->lun);
}
-#endif /* def REAL_DMA */
/**
* list_find_cmd - test for presence of a command in a linked list
@@ -2360,9 +2353,7 @@ static int NCR5380_abort(struct scsi_cmnd *cmd)
if (hostdata->connected == cmd) {
dsprintk(NDEBUG_ABORT, instance, "abort: cmd %p is connected\n", cmd);
hostdata->connected = NULL;
-#ifdef REAL_DMA
hostdata->dma_len = 0;
-#endif
if (do_abort(instance)) {
set_host_byte(cmd, DID_ERROR);
complete_cmd(instance, cmd);
@@ -2388,6 +2379,7 @@ out:
dsprintk(NDEBUG_ABORT, instance, "abort: successfully aborted %p\n", cmd);
queue_work(hostdata->work_q, &hostdata->main_task);
+ maybe_release_dma_irq(instance);
spin_unlock_irqrestore(&hostdata->lock, flags);
return result;
@@ -2445,7 +2437,7 @@ static int NCR5380_bus_reset(struct scsi_cmnd *cmd)
struct scsi_cmnd *cmd = NCR5380_to_scmd(ncmd);
set_host_byte(cmd, DID_RESET);
- cmd->scsi_done(cmd);
+ complete_cmd(instance, cmd);
}
INIT_LIST_HEAD(&hostdata->disconnected);
@@ -2465,11 +2457,10 @@ static int NCR5380_bus_reset(struct scsi_cmnd *cmd)
for (i = 0; i < 8; ++i)
hostdata->busy[i] = 0;
-#ifdef REAL_DMA
hostdata->dma_len = 0;
-#endif
queue_work(hostdata->work_q, &hostdata->main_task);
+ maybe_release_dma_irq(instance);
spin_unlock_irqrestore(&hostdata->lock, flags);
return SUCCESS;
diff --git a/drivers/scsi/NCR5380.h b/drivers/scsi/NCR5380.h
index a79288682a74..c60728785d89 100644
--- a/drivers/scsi/NCR5380.h
+++ b/drivers/scsi/NCR5380.h
@@ -199,13 +199,6 @@
#define PHASE_SR_TO_TCR(phase) ((phase) >> 2)
-/*
- * "Special" value for the (unsigned char) command tag, to indicate
- * I_T_L nexus instead of I_T_L_Q.
- */
-
-#define TAG_NONE 0xff
-
/*
* These are "special" values for the irq and dma_channel fields of the
* Scsi_Host structure
@@ -220,28 +213,17 @@
#define NO_IRQ 0
#endif
-#define FLAG_NO_DMA_FIXUP 1 /* No DMA errata workarounds */
+#define FLAG_DMA_FIXUP 1 /* Use DMA errata workarounds */
#define FLAG_NO_PSEUDO_DMA 8 /* Inhibit DMA */
#define FLAG_LATE_DMA_SETUP 32 /* Setup NCR before DMA H/W */
-#define FLAG_TAGGED_QUEUING 64 /* as X3T9.2 spelled it */
#define FLAG_TOSHIBA_DELAY 128 /* Allow for borken CD-ROMs */
-#ifdef SUPPORT_TAGS
-struct tag_alloc {
- DECLARE_BITMAP(allocated, MAX_TAGS);
- int nr_allocated;
- int queue_size;
-};
-#endif
-
struct NCR5380_hostdata {
NCR5380_implementation_fields; /* implementation specific */
struct Scsi_Host *host; /* Host backpointer */
unsigned char id_mask, id_higher_mask; /* 1 << id, all bits greater */
unsigned char busy[8]; /* index = target, bit = lun */
-#if defined(REAL_DMA) || defined(REAL_DMA_POLL)
int dma_len; /* requested length of DMA */
-#endif
unsigned char last_message; /* last message OUT */
struct scsi_cmnd *connected; /* currently connected cmnd */
struct scsi_cmnd *selecting; /* cmnd to be connected */
@@ -256,13 +238,6 @@ struct NCR5380_hostdata {
int read_overruns; /* number of bytes to cut from a
* transfer to handle chip overruns */
struct work_struct main_task;
-#ifdef SUPPORT_TAGS
- struct tag_alloc TagAlloc[8][8]; /* 8 targets and 8 LUNs */
-#endif
-#ifdef PSEUDO_DMA
- unsigned spin_max_r;
- unsigned spin_max_w;
-#endif
struct workqueue_struct *work_q;
unsigned long accesses_per_ms; /* chip register accesses per ms */
};
@@ -305,132 +280,20 @@ static void NCR5380_print(struct Scsi_Host *instance);
#define NCR5380_dprint_phase(flg, arg) do {} while (0)
#endif
-#if defined(AUTOPROBE_IRQ)
static int NCR5380_probe_irq(struct Scsi_Host *instance, int possible);
-#endif
static int NCR5380_init(struct Scsi_Host *instance, int flags);
static int NCR5380_maybe_reset_bus(struct Scsi_Host *);
static void NCR5380_exit(struct Scsi_Host *instance);
static void NCR5380_information_transfer(struct Scsi_Host *instance);
-#ifndef DONT_USE_INTR
static irqreturn_t NCR5380_intr(int irq, void *dev_id);
-#endif
static void NCR5380_main(struct work_struct *work);
static const char *NCR5380_info(struct Scsi_Host *instance);
static void NCR5380_reselect(struct Scsi_Host *instance);
static struct scsi_cmnd *NCR5380_select(struct Scsi_Host *, struct scsi_cmnd *);
-#if defined(PSEUDO_DMA) || defined(REAL_DMA) || defined(REAL_DMA_POLL)
static int NCR5380_transfer_dma(struct Scsi_Host *instance, unsigned char *phase, int *count, unsigned char **data);
-#endif
static int NCR5380_transfer_pio(struct Scsi_Host *instance, unsigned char *phase, int *count, unsigned char **data);
+static int NCR5380_poll_politely(struct Scsi_Host *, int, int, int, int);
+static int NCR5380_poll_politely2(struct Scsi_Host *, int, int, int, int, int, int, int);
-#if (defined(REAL_DMA) || defined(REAL_DMA_POLL))
-
-#if defined(i386) || defined(__alpha__)
-
-/**
- * NCR5380_pc_dma_setup - setup ISA DMA
- * @instance: adapter to set up
- * @ptr: block to transfer (virtual address)
- * @count: number of bytes to transfer
- * @mode: DMA controller mode to use
- *
- * Program the DMA controller ready to perform an ISA DMA transfer
- * on this chip.
- *
- * Locks: takes and releases the ISA DMA lock.
- */
-
-static __inline__ int NCR5380_pc_dma_setup(struct Scsi_Host *instance, unsigned char *ptr, unsigned int count, unsigned char mode)
-{
- unsigned limit;
- unsigned long bus_addr = virt_to_bus(ptr);
- unsigned long flags;
-
- if (instance->dma_channel <= 3) {
- if (count > 65536)
- count = 65536;
- limit = 65536 - (bus_addr & 0xFFFF);
- } else {
- if (count > 65536 * 2)
- count = 65536 * 2;
- limit = 65536 * 2 - (bus_addr & 0x1FFFF);
- }
-
- if (count > limit)
- count = limit;
-
- if ((count & 1) || (bus_addr & 1))
- panic("scsi%d : attempted unaligned DMA transfer\n", instance->host_no);
-
- flags=claim_dma_lock();
- disable_dma(instance->dma_channel);
- clear_dma_ff(instance->dma_channel);
- set_dma_addr(instance->dma_channel, bus_addr);
- set_dma_count(instance->dma_channel, count);
- set_dma_mode(instance->dma_channel, mode);
- enable_dma(instance->dma_channel);
- release_dma_lock(flags);
-
- return count;
-}
-
-/**
- * NCR5380_pc_dma_write_setup - setup ISA DMA write
- * @instance: adapter to set up
- * @ptr: block to transfer (virtual address)
- * @count: number of bytes to transfer
- *
- * Program the DMA controller ready to perform an ISA DMA write to the
- * SCSI controller.
- *
- * Locks: called routines take and release the ISA DMA lock.
- */
-
-static __inline__ int NCR5380_pc_dma_write_setup(struct Scsi_Host *instance, unsigned char *src, unsigned int count)
-{
- return NCR5380_pc_dma_setup(instance, src, count, DMA_MODE_WRITE);
-}
-
-/**
- * NCR5380_pc_dma_read_setup - setup ISA DMA read
- * @instance: adapter to set up
- * @ptr: block to transfer (virtual address)
- * @count: number of bytes to transfer
- *
- * Program the DMA controller ready to perform an ISA DMA read from the
- * SCSI controller.
- *
- * Locks: called routines take and release the ISA DMA lock.
- */
-
-static __inline__ int NCR5380_pc_dma_read_setup(struct Scsi_Host *instance, unsigned char *src, unsigned int count)
-{
- return NCR5380_pc_dma_setup(instance, src, count, DMA_MODE_READ);
-}
-
-/**
- * NCR5380_pc_dma_residual - return bytes left
- * @instance: adapter
- *
- * Reports the number of bytes left over after the DMA was terminated.
- *
- * Locks: takes and releases the ISA DMA lock.
- */
-
-static __inline__ int NCR5380_pc_dma_residual(struct Scsi_Host *instance)
-{
- unsigned long flags;
- int tmp;
-
- flags = claim_dma_lock();
- clear_dma_ff(instance->dma_channel);
- tmp = get_dma_residue(instance->dma_channel);
- release_dma_lock(flags);
-
- return tmp;
-}
-#endif /* defined(i386) || defined(__alpha__) */
-#endif /* defined(REAL_DMA) */
#endif /* __KERNEL__ */
#endif /* NCR5380_H */
diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 7dfd0fa27255..6678d1fd897b 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -555,8 +555,6 @@ static int aac_get_container_name(struct scsi_cmnd * scsicmd)
dev = (struct aac_dev *)scsicmd->device->host->hostdata;
cmd_fibcontext = aac_fib_alloc_tag(dev, scsicmd);
- if (!cmd_fibcontext)
- return -ENOMEM;
aac_fib_init(cmd_fibcontext);
dinfo = (struct aac_get_name *) fib_data(cmd_fibcontext);
@@ -1037,8 +1035,6 @@ static int aac_get_container_serial(struct scsi_cmnd * scsicmd)
dev = (struct aac_dev *)scsicmd->device->host->hostdata;
cmd_fibcontext = aac_fib_alloc_tag(dev, scsicmd);
- if (!cmd_fibcontext)
- return -ENOMEM;
aac_fib_init(cmd_fibcontext);
dinfo = (struct aac_get_serial *) fib_data(cmd_fibcontext);
@@ -1950,10 +1946,6 @@ static int aac_read(struct scsi_cmnd * scsicmd)
* Alocate and initialize a Fib
*/
cmd_fibcontext = aac_fib_alloc_tag(dev, scsicmd);
- if (!cmd_fibcontext) {
- printk(KERN_WARNING "aac_read: fib allocation failed\n");
- return -1;
- }
status = aac_adapter_read(cmd_fibcontext, scsicmd, lba, count);
@@ -2048,16 +2040,6 @@ static int aac_write(struct scsi_cmnd * scsicmd)
* Allocate and initialize a Fib then setup a BlockWrite command
*/
cmd_fibcontext = aac_fib_alloc_tag(dev, scsicmd);
- if (!cmd_fibcontext) {
- /* FIB temporarily unavailable,not catastrophic failure */
-
- /* scsicmd->result = DID_ERROR << 16;
- * scsicmd->scsi_done(scsicmd);
- * return 0;
- */
- printk(KERN_WARNING "aac_write: fib allocation failed\n");
- return -1;
- }
status = aac_adapter_write(cmd_fibcontext, scsicmd, lba, count, fua);
@@ -2283,8 +2265,6 @@ static int aac_start_stop(struct scsi_cmnd *scsicmd)
* Allocate and initialize a Fib
*/
cmd_fibcontext = aac_fib_alloc_tag(aac, scsicmd);
- if (!cmd_fibcontext)
- return SCSI_MLQUEUE_HOST_BUSY;
aac_fib_init(cmd_fibcontext);
@@ -3184,8 +3164,6 @@ static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
* Allocate and initialize a Fib then setup a BlockWrite command
*/
cmd_fibcontext = aac_fib_alloc_tag(dev, scsicmd);
- if (!cmd_fibcontext)
- return -1;
status = aac_adapter_scsi(cmd_fibcontext, scsicmd);
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index efa493cf1bc6..8f90d9e77104 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -29,6 +29,7 @@ enum {
#define AAC_INT_MODE_MSI (1<<1)
#define AAC_INT_MODE_AIF (1<<2)
#define AAC_INT_MODE_SYNC (1<<3)
+#define AAC_INT_MODE_MSIX (1<<16)
#define AAC_INT_ENABLE_TYPE1_INTX 0xfffffffb
#define AAC_INT_ENABLE_TYPE1_MSIX 0xfffffffa
@@ -62,7 +63,7 @@ enum {
#define PMC_GLOBAL_INT_BIT0 0x00000001
#ifndef AAC_DRIVER_BUILD
-# define AAC_DRIVER_BUILD 41052
+# define AAC_DRIVER_BUILD 41066
# define AAC_DRIVER_BRANCH "-ms"
#endif
#define MAXIMUM_NUM_CONTAINERS 32
@@ -720,7 +721,7 @@ struct sa_registers {
};
-#define Sa_MINIPORT_REVISION 1
+#define SA_INIT_NUM_MSIXVECTORS 1
#define sa_readw(AEP, CSR) readl(&((AEP)->regs.sa->CSR))
#define sa_readl(AEP, CSR) readl(&((AEP)->regs.sa->CSR))
@@ -2065,6 +2066,10 @@ extern struct aac_common aac_config;
#define AifEnAddJBOD 30 /* JBOD created */
#define AifEnDeleteJBOD 31 /* JBOD deleted */
+#define AifBuManagerEvent 42 /* Bu management*/
+#define AifBuCacheDataLoss 10
+#define AifBuCacheDataRecover 11
+
#define AifCmdJobProgress 2 /* Progress report */
#define AifJobCtrZero 101 /* Array Zero progress */
#define AifJobStsSuccess 1 /* Job completes */
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
index 2b4e75380ae6..341ea327ae79 100644
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -37,6 +37,7 @@
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/blkdev.h>
+#include <linux/delay.h>
#include <linux/completion.h>
#include <linux/mm.h>
#include <scsi/scsi_host.h>
@@ -47,6 +48,20 @@ struct aac_common aac_config = {
.irq_mod = 1
};
+static inline int aac_is_msix_mode(struct aac_dev *dev)
+{
+ u32 status;
+
+ status = src_readl(dev, MUnit.OMR);
+ return (status & AAC_INT_MODE_MSIX);
+}
+
+static inline void aac_change_to_intx(struct aac_dev *dev)
+{
+ aac_src_access_devreg(dev, AAC_DISABLE_MSIX);
+ aac_src_access_devreg(dev, AAC_ENABLE_INTX);
+}
+
static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long commsize, unsigned long commalign)
{
unsigned char *base;
@@ -91,7 +106,7 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co
init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION);
if (dev->max_fib_size != sizeof(struct hw_fib))
init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4);
- init->Sa_MSIXVectors = cpu_to_le32(Sa_MINIPORT_REVISION);
+ init->Sa_MSIXVectors = cpu_to_le32(SA_INIT_NUM_MSIXVECTORS);
init->fsrev = cpu_to_le32(dev->fsrev);
/*
@@ -378,21 +393,8 @@ void aac_define_int_mode(struct aac_dev *dev)
msi_count = i;
} else {
dev->msi_enabled = 0;
- printk(KERN_ERR "%s%d: MSIX not supported!! Will try MSI 0x%x.\n",
- dev->name, dev->id, i);
- }
- }
-
- if (!dev->msi_enabled) {
- msi_count = 1;
- i = pci_enable_msi(dev->pdev);
-
- if (!i) {
- dev->msi_enabled = 1;
- dev->msi = 1;
- } else {
- printk(KERN_ERR "%s%d: MSI not supported!! Will try INTx 0x%x.\n",
- dev->name, dev->id, i);
+ dev_err(&dev->pdev->dev,
+ "MSIX not supported!! Will try INTX 0x%x.\n", i);
}
}
@@ -427,6 +429,15 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
dev->comm_interface = AAC_COMM_PRODUCER;
dev->raw_io_interface = dev->raw_io_64 = 0;
+
+ /*
+ * Enable INTX mode, if not done already Enabled
+ */
+ if (aac_is_msix_mode(dev)) {
+ aac_change_to_intx(dev);
+ dev_info(&dev->pdev->dev, "Changed firmware to INTX mode");
+ }
+
if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES,
0, 0, 0, 0, 0, 0,
status+0, status+1, status+2, status+3, NULL)) &&
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index 511bbc575062..0aeecec1f5ea 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -637,10 +637,10 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
}
return -EFAULT;
}
- /* We used to udelay() here but that absorbed
- * a CPU when a timeout occured. Not very
- * useful. */
- cpu_relax();
+ /*
+ * Allow other processes / CPUS to use core
+ */
+ schedule();
}
} else if (down_interruptible(&fibptr->event_wait)) {
/* Do nothing ... satisfy
@@ -901,6 +901,31 @@ void aac_printf(struct aac_dev *dev, u32 val)
memset(cp, 0, 256);
}
+static inline int aac_aif_data(struct aac_aifcmd *aifcmd, uint32_t index)
+{
+ return le32_to_cpu(((__le32 *)aifcmd->data)[index]);
+}
+
+
+static void aac_handle_aif_bu(struct aac_dev *dev, struct aac_aifcmd *aifcmd)
+{
+ switch (aac_aif_data(aifcmd, 1)) {
+ case AifBuCacheDataLoss:
+ if (aac_aif_data(aifcmd, 2))
+ dev_info(&dev->pdev->dev, "Backup unit had cache data loss - [%d]\n",
+ aac_aif_data(aifcmd, 2));
+ else
+ dev_info(&dev->pdev->dev, "Backup Unit had cache data loss\n");
+ break;
+ case AifBuCacheDataRecover:
+ if (aac_aif_data(aifcmd, 2))
+ dev_info(&dev->pdev->dev, "DDR cache data recovered successfully - [%d]\n",
+ aac_aif_data(aifcmd, 2));
+ else
+ dev_info(&dev->pdev->dev, "DDR cache data recovered successfully\n");
+ break;
+ }
+}
/**
* aac_handle_aif - Handle a message from the firmware
@@ -1154,6 +1179,8 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
ADD : DELETE;
break;
}
+ case AifBuManagerEvent:
+ aac_handle_aif_bu(dev, aifcmd);
break;
}
@@ -1996,6 +2023,10 @@ int aac_command_thread(void *data)
if (difference <= 0)
difference = 1;
set_current_state(TASK_INTERRUPTIBLE);
+
+ if (kthread_should_stop())
+ break;
+
schedule_timeout(difference);
if (kthread_should_stop())
diff --git a/drivers/scsi/aacraid/dpcsup.c b/drivers/scsi/aacraid/dpcsup.c
index d677b52860ae..7e836205aef1 100644
--- a/drivers/scsi/aacraid/dpcsup.c
+++ b/drivers/scsi/aacraid/dpcsup.c
@@ -392,9 +392,10 @@ unsigned int aac_intr_normal(struct aac_dev *dev, u32 index,
if (likely(fib->callback && fib->callback_data)) {
fib->flags &= FIB_CONTEXT_FLAG_FASTRESP;
fib->callback(fib->callback_data, fib);
- } else {
- aac_fib_complete(fib);
- }
+ } else
+ dev_info(&dev->pdev->dev,
+ "Invalid callback_fib[%d] (*%p)(%p)\n",
+ index, fib->callback, fib->callback_data);
} else {
unsigned long flagv;
dprintk((KERN_INFO "event_wait up\n"));
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index ff6caab8cc8b..a943bd230bc2 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -1299,6 +1299,8 @@ static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
else
shost->this_id = shost->max_id;
+ aac_intr_normal(aac, 0, 2, 0, NULL);
+
/*
* dmb - we may need to move the setting of these parms somewhere else once
* we get a fib that can report the actual numbers
@@ -1431,8 +1433,8 @@ static int aac_acquire_resources(struct aac_dev *dev)
/* After EEH recovery or suspend resume, max_msix count
* may change, therfore updating in init as well.
*/
- aac_adapter_start(dev);
dev->init->Sa_MSIXVectors = cpu_to_le32(dev->max_msix);
+ aac_adapter_start(dev);
}
return 0;
diff --git a/drivers/scsi/aacraid/src.c b/drivers/scsi/aacraid/src.c
index bc0203f3d243..28f8b8a1b8a4 100644
--- a/drivers/scsi/aacraid/src.c
+++ b/drivers/scsi/aacraid/src.c
@@ -135,7 +135,8 @@ static irqreturn_t aac_src_intr_message(int irq, void *dev_id)
if (mode & AAC_INT_MODE_AIF) {
/* handle AIF */
- aac_intr_normal(dev, 0, 2, 0, NULL);
+ if (dev->aif_thread && dev->fsa_dev)
+ aac_intr_normal(dev, 0, 2, 0, NULL);
if (dev->msi_enabled)
aac_src_access_devreg(dev, AAC_CLEAR_AIF_BIT);
mode = 0;
diff --git a/drivers/scsi/arm/cumana_1.c b/drivers/scsi/arm/cumana_1.c
index 221f18c5df93..8e9cfe8f22f5 100644
--- a/drivers/scsi/arm/cumana_1.c
+++ b/drivers/scsi/arm/cumana_1.c
@@ -13,13 +13,14 @@
#include <scsi/scsi_host.h>
-#define PSEUDO_DMA
-
#define priv(host) ((struct NCR5380_hostdata *)(host)->hostdata)
#define NCR5380_read(reg) cumanascsi_read(instance, reg)
#define NCR5380_write(reg, value) cumanascsi_write(instance, reg, value)
#define NCR5380_dma_xfer_len(instance, cmd, phase) (cmd->transfersize)
+#define NCR5380_dma_recv_setup cumanascsi_pread
+#define NCR5380_dma_send_setup cumanascsi_pwrite
+#define NCR5380_dma_residual(instance) (0)
#define NCR5380_intr cumanascsi_intr
#define NCR5380_queue_command cumanascsi_queue_command
@@ -41,8 +42,8 @@ void cumanascsi_setup(char *str, int *ints)
#define L(v) (((v)<<16)|((v) & 0x0000ffff))
#define H(v) (((v)>>16)|((v) & 0xffff0000))
-static inline int
-NCR5380_pwrite(struct Scsi_Host *host, unsigned char *addr, int len)
+static inline int cumanascsi_pwrite(struct Scsi_Host *host,
+ unsigned char *addr, int len)
{
unsigned long *laddr;
void __iomem *dma = priv(host)->dma + 0x2000;
@@ -101,11 +102,14 @@ NCR5380_pwrite(struct Scsi_Host *host, unsigned char *addr, int len)
}
end:
writeb(priv(host)->ctrl | 0x40, priv(host)->base + CTRL);
- return len;
+
+ if (len)
+ return -1;
+ return 0;
}
-static inline int
-NCR5380_pread(struct Scsi_Host *host, unsigned char *addr, int len)
+static inline int cumanascsi_pread(struct Scsi_Host *host,
+ unsigned char *addr, int len)
{
unsigned long *laddr;
void __iomem *dma = priv(host)->dma + 0x2000;
@@ -163,7 +167,10 @@ NCR5380_pread(struct Scsi_Host *host, unsigned char *addr, int len)
}
end:
writeb(priv(host)->ctrl | 0x40, priv(host)->base + CTRL);
- return len;
+
+ if (len)
+ return -1;
+ return 0;
}
static unsigned char cumanascsi_read(struct Scsi_Host *host, unsigned int reg)
@@ -239,7 +246,7 @@ static int cumanascsi1_probe(struct expansion_card *ec,
host->irq = ec->irq;
- ret = NCR5380_init(host, 0);
+ ret = NCR5380_init(host, FLAG_DMA_FIXUP | FLAG_LATE_DMA_SETUP);
if (ret)
goto out_unmap;
diff --git a/drivers/scsi/arm/cumana_2.c b/drivers/scsi/arm/cumana_2.c
index faa1bee07c8a..edce5f3cfdba 100644
--- a/drivers/scsi/arm/cumana_2.c
+++ b/drivers/scsi/arm/cumana_2.c
@@ -365,7 +365,7 @@ static struct scsi_host_template cumanascsi2_template = {
.eh_abort_handler = fas216_eh_abort,
.can_queue = 1,
.this_id = 7,
- .sg_tablesize = SCSI_MAX_SG_CHAIN_SEGMENTS,
+ .sg_tablesize = SG_MAX_SEGMENTS,
.dma_boundary = IOMD_DMA_BOUNDARY,
.use_clustering = DISABLE_CLUSTERING,
.proc_name = "cumanascsi2",
diff --git a/drivers/scsi/arm/eesox.c b/drivers/scsi/arm/eesox.c
index a8ad6880dd91..e93e047f4316 100644
--- a/drivers/scsi/arm/eesox.c
+++ b/drivers/scsi/arm/eesox.c
@@ -484,7 +484,7 @@ static struct scsi_host_template eesox_template = {
.eh_abort_handler = fas216_eh_abort,
.can_queue = 1,
.this_id = 7,
- .sg_tablesize = SCSI_MAX_SG_CHAIN_SEGMENTS,
+ .sg_tablesize = SG_MAX_SEGMENTS,
.dma_boundary = IOMD_DMA_BOUNDARY,
.use_clustering = DISABLE_CLUSTERING,
.proc_name = "eesox",
diff --git a/drivers/scsi/arm/oak.c b/drivers/scsi/arm/oak.c
index 1fab1d1896b1..a396024a3cae 100644
--- a/drivers/scsi/arm/oak.c
+++ b/drivers/scsi/arm/oak.c
@@ -14,9 +14,6 @@
#include <scsi/scsi_host.h>
-/*#define PSEUDO_DMA*/
-#define DONT_USE_INTR
-
#define priv(host) ((struct NCR5380_hostdata *)(host)->hostdata)
#define NCR5380_read(reg) \
@@ -24,7 +21,10 @@
#define NCR5380_write(reg, value) \
writeb(value, priv(instance)->base + ((reg) << 2))
-#define NCR5380_dma_xfer_len(instance, cmd, phase) (cmd->transfersize)
+#define NCR5380_dma_xfer_len(instance, cmd, phase) (0)
+#define NCR5380_dma_recv_setup oakscsi_pread
+#define NCR5380_dma_send_setup oakscsi_pwrite
+#define NCR5380_dma_residual(instance) (0)
#define NCR5380_queue_command oakscsi_queue_command
#define NCR5380_info oakscsi_info
@@ -40,23 +40,23 @@
#define STAT ((128 + 16) << 2)
#define DATA ((128 + 8) << 2)
-static inline int NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *addr,
- int len)
+static inline int oakscsi_pwrite(struct Scsi_Host *instance,
+ unsigned char *addr, int len)
{
void __iomem *base = priv(instance)->base;
printk("writing %p len %d\n",addr, len);
- if(!len) return -1;
while(1)
{
int status;
while (((status = readw(base + STAT)) & 0x100)==0);
}
+ return 0;
}
-static inline int NCR5380_pread(struct Scsi_Host *instance, unsigned char *addr,
- int len)
+static inline int oakscsi_pread(struct Scsi_Host *instance,
+ unsigned char *addr, int len)
{
void __iomem *base = priv(instance)->base;
printk("reading %p len %d\n", addr, len);
@@ -73,7 +73,7 @@ printk("reading %p len %d\n", addr, len);
if(status & 0x200 || !timeout)
{
printk("status = %08X\n", status);
- return 1;
+ return -1;
}
}
@@ -143,7 +143,7 @@ static int oakscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
host->irq = NO_IRQ;
host->n_io_port = 255;
- ret = NCR5380_init(host, 0);
+ ret = NCR5380_init(host, FLAG_DMA_FIXUP | FLAG_LATE_DMA_SETUP);
if (ret)
goto out_unmap;
diff --git a/drivers/scsi/arm/powertec.c b/drivers/scsi/arm/powertec.c
index 5e1b73e1b743..79aa88911b7f 100644
--- a/drivers/scsi/arm/powertec.c
+++ b/drivers/scsi/arm/powertec.c
@@ -291,7 +291,7 @@ static struct scsi_host_template powertecscsi_template = {
.can_queue = 8,
.this_id = 7,
- .sg_tablesize = SCSI_MAX_SG_CHAIN_SEGMENTS,
+ .sg_tablesize = SG_MAX_SEGMENTS,
.dma_boundary = IOMD_DMA_BOUNDARY,
.cmd_per_lun = 2,
.use_clustering = ENABLE_CLUSTERING,
diff --git a/drivers/scsi/atari_NCR5380.c b/drivers/scsi/atari_NCR5380.c
deleted file mode 100644
index 389825ba5d96..000000000000
--- a/drivers/scsi/atari_NCR5380.c
+++ /dev/null
@@ -1,2676 +0,0 @@
-/*
- * NCR 5380 generic driver routines. These should make it *trivial*
- * to implement 5380 SCSI drivers under Linux with a non-trantor
- * architecture.
- *
- * Note that these routines also work with NR53c400 family chips.
- *
- * Copyright 1993, Drew Eckhardt
- * Visionary Computing
- * (Unix and Linux consulting and custom programming)
- * drew@colorado.edu
- * +1 (303) 666-5836
- *
- * For more information, please consult
- *
- * NCR 5380 Family
- * SCSI Protocol Controller
- * Databook
- *
- * NCR Microelectronics
- * 1635 Aeroplaza Drive
- * Colorado Springs, CO 80916
- * 1+ (719) 578-3400
- * 1+ (800) 334-5454
- */
-
-/* Ported to Atari by Roman Hodek and others. */
-
-/* Adapted for the sun3 by Sam Creasey. */
-
-/*
- * Design
- *
- * This is a generic 5380 driver. To use it on a different platform,
- * one simply writes appropriate system specific macros (ie, data
- * transfer - some PC's will use the I/O bus, 68K's must use
- * memory mapped) and drops this file in their 'C' wrapper.
- *
- * As far as command queueing, two queues are maintained for
- * each 5380 in the system - commands that haven't been issued yet,
- * and commands that are currently executing. This means that an
- * unlimited number of commands may be queued, letting
- * more commands propagate from the higher driver levels giving higher
- * throughput. Note that both I_T_L and I_T_L_Q nexuses are supported,
- * allowing multiple commands to propagate all the way to a SCSI-II device
- * while a command is already executing.
- *
- *
- * Issues specific to the NCR5380 :
- *
- * When used in a PIO or pseudo-dma mode, the NCR5380 is a braindead
- * piece of hardware that requires you to sit in a loop polling for
- * the REQ signal as long as you are connected. Some devices are
- * brain dead (ie, many TEXEL CD ROM drives) and won't disconnect
- * while doing long seek operations. [...] These
- * broken devices are the exception rather than the rule and I'd rather
- * spend my time optimizing for the normal case.
- *
- * Architecture :
- *
- * At the heart of the design is a coroutine, NCR5380_main,
- * which is started from a workqueue for each NCR5380 host in the
- * system. It attempts to establish I_T_L or I_T_L_Q nexuses by
- * removing the commands from the issue queue and calling
- * NCR5380_select() if a nexus is not established.
- *
- * Once a nexus is established, the NCR5380_information_transfer()
- * phase goes through the various phases as instructed by the target.
- * if the target goes into MSG IN and sends a DISCONNECT message,
- * the command structure is placed into the per instance disconnected
- * queue, and NCR5380_main tries to find more work. If the target is
- * idle for too long, the system will try to sleep.
- *
- * If a command has disconnected, eventually an interrupt will trigger,
- * calling NCR5380_intr() which will in turn call NCR5380_reselect
- * to reestablish a nexus. This will run main if necessary.
- *
- * On command termination, the done function will be called as
- * appropriate.
- *
- * SCSI pointers are maintained in the SCp field of SCSI command
- * structures, being initialized after the command is connected
- * in NCR5380_select, and set as appropriate in NCR5380_information_transfer.
- * Note that in violation of the standard, an implicit SAVE POINTERS operation
- * is done, since some BROKEN disks fail to issue an explicit SAVE POINTERS.
- */
-
-/*
- * Using this file :
- * This file a skeleton Linux SCSI driver for the NCR 5380 series
- * of chips. To use it, you write an architecture specific functions
- * and macros and include this file in your driver.
- *
- * These macros control options :
- * AUTOSENSE - if defined, REQUEST SENSE will be performed automatically
- * for commands that return with a CHECK CONDITION status.
- *
- * DIFFERENTIAL - if defined, NCR53c81 chips will use external differential
- * transceivers.
- *
- * REAL_DMA - if defined, REAL DMA is used during the data transfer phases.
- *
- * SUPPORT_TAGS - if defined, SCSI-2 tagged queuing is used where possible
- *
- * These macros MUST be defined :
- *
- * NCR5380_read(register) - read from the specified register
- *
- * NCR5380_write(register, value) - write to the specific register
- *
- * NCR5380_implementation_fields - additional fields needed for this
- * specific implementation of the NCR5380
- *
- * Either real DMA *or* pseudo DMA may be implemented
- * REAL functions :
- * NCR5380_REAL_DMA should be defined if real DMA is to be used.
- * Note that the DMA setup functions should return the number of bytes
- * that they were able to program the controller for.
- *
- * Also note that generic i386/PC versions of these macros are
- * available as NCR5380_i386_dma_write_setup,
- * NCR5380_i386_dma_read_setup, and NCR5380_i386_dma_residual.
- *
- * NCR5380_dma_write_setup(instance, src, count) - initialize
- * NCR5380_dma_read_setup(instance, dst, count) - initialize
- * NCR5380_dma_residual(instance); - residual count
- *
- * PSEUDO functions :
- * NCR5380_pwrite(instance, src, count)
- * NCR5380_pread(instance, dst, count);
- *
- * The generic driver is initialized by calling NCR5380_init(instance),
- * after setting the appropriate host specific fields and ID. If the
- * driver wishes to autoprobe for an IRQ line, the NCR5380_probe_irq(instance,
- * possible) function may be used.
- */
-
-static int do_abort(struct Scsi_Host *);
-static void do_reset(struct Scsi_Host *);
-
-#ifdef SUPPORT_TAGS
-
-/*
- * Functions for handling tagged queuing
- * =====================================
- *
- * ++roman (01/96): Now I've implemented SCSI-2 tagged queuing. Some notes:
- *
- * Using consecutive numbers for the tags is no good idea in my eyes. There
- * could be wrong re-usings if the counter (8 bit!) wraps and some early
- * command has been preempted for a long time. My solution: a bitfield for
- * remembering used tags.
- *
- * There's also the problem that each target has a certain queue size, but we
- * cannot know it in advance :-( We just see a QUEUE_FULL status being
- * returned. So, in this case, the driver internal queue size assumption is
- * reduced to the number of active tags if QUEUE_FULL is returned by the
- * target.
- *
- * We're also not allowed running tagged commands as long as an untagged
- * command is active. And REQUEST SENSE commands after a contingent allegiance
- * condition _must_ be untagged. To keep track whether an untagged command has
- * been issued, the host->busy array is still employed, as it is without
- * support for tagged queuing.
- *
- * One could suspect that there are possible race conditions between
- * is_lun_busy(), cmd_get_tag() and cmd_free_tag(). But I think this isn't the
- * case: is_lun_busy() and cmd_get_tag() are both called from NCR5380_main(),
- * which already guaranteed to be running at most once. It is also the only
- * place where tags/LUNs are allocated. So no other allocation can slip
- * between that pair, there could only happen a reselection, which can free a
- * tag, but that doesn't hurt. Only the sequence in cmd_free_tag() becomes
- * important: the tag bit must be cleared before 'nr_allocated' is decreased.
- */
-
-static void __init init_tags(struct NCR5380_hostdata *hostdata)
-{
- int target, lun;
- struct tag_alloc *ta;
-
- if (!(hostdata->flags & FLAG_TAGGED_QUEUING))
- return;
-
- for (target = 0; target < 8; ++target) {
- for (lun = 0; lun < 8; ++lun) {
- ta = &hostdata->TagAlloc[target][lun];
- bitmap_zero(ta->allocated, MAX_TAGS);
- ta->nr_allocated = 0;
- /* At the beginning, assume the maximum queue size we could
- * support (MAX_TAGS). This value will be decreased if the target
- * returns QUEUE_FULL status.
- */
- ta->queue_size = MAX_TAGS;
- }
- }
-}
-
-
-/* Check if we can issue a command to this LUN: First see if the LUN is marked
- * busy by an untagged command. If the command should use tagged queuing, also
- * check that there is a free tag and the target's queue won't overflow. This
- * function should be called with interrupts disabled to avoid race
- * conditions.
- */
-
-static int is_lun_busy(struct scsi_cmnd *cmd, int should_be_tagged)
-{
- u8 lun = cmd->device->lun;
- struct Scsi_Host *instance = cmd->device->host;
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
-
- if (hostdata->busy[cmd->device->id] & (1 << lun))
- return 1;
- if (!should_be_tagged ||
- !(hostdata->flags & FLAG_TAGGED_QUEUING) ||
- !cmd->device->tagged_supported)
- return 0;
- if (hostdata->TagAlloc[scmd_id(cmd)][lun].nr_allocated >=
- hostdata->TagAlloc[scmd_id(cmd)][lun].queue_size) {
- dsprintk(NDEBUG_TAGS, instance, "target %d lun %d: no free tags\n",
- scmd_id(cmd), lun);
- return 1;
- }
- return 0;
-}
-
-
-/* Allocate a tag for a command (there are no checks anymore, check_lun_busy()
- * must be called before!), or reserve the LUN in 'busy' if the command is
- * untagged.
- */
-
-static void cmd_get_tag(struct scsi_cmnd *cmd, int should_be_tagged)
-{
- u8 lun = cmd->device->lun;
- struct Scsi_Host *instance = cmd->device->host;
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
-
- /* If we or the target don't support tagged queuing, allocate the LUN for
- * an untagged command.
- */
- if (!should_be_tagged ||
- !(hostdata->flags & FLAG_TAGGED_QUEUING) ||
- !cmd->device->tagged_supported) {
- cmd->tag = TAG_NONE;
- hostdata->busy[cmd->device->id] |= (1 << lun);
- dsprintk(NDEBUG_TAGS, instance, "target %d lun %d now allocated by untagged command\n",
- scmd_id(cmd), lun);
- } else {
- struct tag_alloc *ta = &hostdata->TagAlloc[scmd_id(cmd)][lun];
-
- cmd->tag = find_first_zero_bit(ta->allocated, MAX_TAGS);
- set_bit(cmd->tag, ta->allocated);
- ta->nr_allocated++;
- dsprintk(NDEBUG_TAGS, instance, "using tag %d for target %d lun %d (%d tags allocated)\n",
- cmd->tag, scmd_id(cmd), lun, ta->nr_allocated);
- }
-}
-
-
-/* Mark the tag of command 'cmd' as free, or in case of an untagged command,
- * unlock the LUN.
- */
-
-static void cmd_free_tag(struct scsi_cmnd *cmd)
-{
- u8 lun = cmd->device->lun;
- struct Scsi_Host *instance = cmd->device->host;
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
-
- if (cmd->tag == TAG_NONE) {
- hostdata->busy[cmd->device->id] &= ~(1 << lun);
- dsprintk(NDEBUG_TAGS, instance, "target %d lun %d untagged cmd freed\n",
- scmd_id(cmd), lun);
- } else if (cmd->tag >= MAX_TAGS) {
- shost_printk(KERN_NOTICE, instance,
- "trying to free bad tag %d!\n", cmd->tag);
- } else {
- struct tag_alloc *ta = &hostdata->TagAlloc[scmd_id(cmd)][lun];
- clear_bit(cmd->tag, ta->allocated);
- ta->nr_allocated--;
- dsprintk(NDEBUG_TAGS, instance, "freed tag %d for target %d lun %d\n",
- cmd->tag, scmd_id(cmd), lun);
- }
-}
-
-
-static void free_all_tags(struct NCR5380_hostdata *hostdata)
-{
- int target, lun;
- struct tag_alloc *ta;
-
- if (!(hostdata->flags & FLAG_TAGGED_QUEUING))
- return;
-
- for (target = 0; target < 8; ++target) {
- for (lun = 0; lun < 8; ++lun) {
- ta = &hostdata->TagAlloc[target][lun];
- bitmap_zero(ta->allocated, MAX_TAGS);
- ta->nr_allocated = 0;
- }
- }
-}
-
-#endif /* SUPPORT_TAGS */
-
-/**
- * merge_contiguous_buffers - coalesce scatter-gather list entries
- * @cmd: command requesting IO
- *
- * Try to merge several scatter-gather buffers into one DMA transfer.
- * This is possible if the scatter buffers lie on physically
- * contiguous addresses. The first scatter-gather buffer's data are
- * assumed to be already transferred into cmd->SCp.this_residual.
- * Every buffer merged avoids an interrupt and a DMA setup operation.
- */
-
-static void merge_contiguous_buffers(struct scsi_cmnd *cmd)
-{
-#if !defined(CONFIG_SUN3)
- unsigned long endaddr;
-#if (NDEBUG & NDEBUG_MERGING)
- unsigned long oldlen = cmd->SCp.this_residual;
- int cnt = 1;
-#endif
-
- for (endaddr = virt_to_phys(cmd->SCp.ptr + cmd->SCp.this_residual - 1) + 1;
- cmd->SCp.buffers_residual &&
- virt_to_phys(sg_virt(&cmd->SCp.buffer[1])) == endaddr;) {
- dprintk(NDEBUG_MERGING, "VTOP(%p) == %08lx -> merging\n",
- page_address(sg_page(&cmd->SCp.buffer[1])), endaddr);
-#if (NDEBUG & NDEBUG_MERGING)
- ++cnt;
-#endif
- ++cmd->SCp.buffer;
- --cmd->SCp.buffers_residual;
- cmd->SCp.this_residual += cmd->SCp.buffer->length;
- endaddr += cmd->SCp.buffer->length;
- }
-#if (NDEBUG & NDEBUG_MERGING)
- if (oldlen != cmd->SCp.this_residual)
- dprintk(NDEBUG_MERGING, "merged %d buffers from %p, new length %08x\n",
- cnt, cmd->SCp.ptr, cmd->SCp.this_residual);
-#endif
-#endif /* !defined(CONFIG_SUN3) */
-}
-
-/**
- * initialize_SCp - init the scsi pointer field
- * @cmd: command block to set up
- *
- * Set up the internal fields in the SCSI command.
- */
-
-static inline void initialize_SCp(struct scsi_cmnd *cmd)
-{
- /*
- * Initialize the Scsi Pointer field so that all of the commands in the
- * various queues are valid.
- */
-
- if (scsi_bufflen(cmd)) {
- cmd->SCp.buffer = scsi_sglist(cmd);
- cmd->SCp.buffers_residual = scsi_sg_count(cmd) - 1;
- cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
- cmd->SCp.this_residual = cmd->SCp.buffer->length;
-
- merge_contiguous_buffers(cmd);
- } else {
- cmd->SCp.buffer = NULL;
- cmd->SCp.buffers_residual = 0;
- cmd->SCp.ptr = NULL;
- cmd->SCp.this_residual = 0;
- }
-
- cmd->SCp.Status = 0;
- cmd->SCp.Message = 0;
-}
-
-/**
- * NCR5380_poll_politely2 - wait for two chip register values
- * @instance: controller to poll
- * @reg1: 5380 register to poll
- * @bit1: Bitmask to check
- * @val1: Expected value
- * @reg2: Second 5380 register to poll
- * @bit2: Second bitmask to check
- * @val2: Second expected value
- * @wait: Time-out in jiffies
- *
- * Polls the chip in a reasonably efficient manner waiting for an
- * event to occur. After a short quick poll we begin to yield the CPU
- * (if possible). In irq contexts the time-out is arbitrarily limited.
- * Callers may hold locks as long as they are held in irq mode.
- *
- * Returns 0 if either or both event(s) occurred otherwise -ETIMEDOUT.
- */
-
-static int NCR5380_poll_politely2(struct Scsi_Host *instance,
- int reg1, int bit1, int val1,
- int reg2, int bit2, int val2, int wait)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
- unsigned long deadline = jiffies + wait;
- unsigned long n;
-
- /* Busy-wait for up to 10 ms */
- n = min(10000U, jiffies_to_usecs(wait));
- n *= hostdata->accesses_per_ms;
- n /= 2000;
- do {
- if ((NCR5380_read(reg1) & bit1) == val1)
- return 0;
- if ((NCR5380_read(reg2) & bit2) == val2)
- return 0;
- cpu_relax();
- } while (n--);
-
- if (irqs_disabled() || in_interrupt())
- return -ETIMEDOUT;
-
- /* Repeatedly sleep for 1 ms until deadline */
- while (time_is_after_jiffies(deadline)) {
- schedule_timeout_uninterruptible(1);
- if ((NCR5380_read(reg1) & bit1) == val1)
- return 0;
- if ((NCR5380_read(reg2) & bit2) == val2)
- return 0;
- }
-
- return -ETIMEDOUT;
-}
-
-static inline int NCR5380_poll_politely(struct Scsi_Host *instance,
- int reg, int bit, int val, int wait)
-{
- return NCR5380_poll_politely2(instance, reg, bit, val,
- reg, bit, val, wait);
-}
-
-#if NDEBUG
-static struct {
- unsigned char mask;
- const char *name;
-} signals[] = {
- {SR_DBP, "PARITY"},
- {SR_RST, "RST"},
- {SR_BSY, "BSY"},
- {SR_REQ, "REQ"},
- {SR_MSG, "MSG"},
- {SR_CD, "CD"},
- {SR_IO, "IO"},
- {SR_SEL, "SEL"},
- {0, NULL}
-},
-basrs[] = {
- {BASR_ATN, "ATN"},
- {BASR_ACK, "ACK"},
- {0, NULL}
-},
-icrs[] = {
- {ICR_ASSERT_RST, "ASSERT RST"},
- {ICR_ASSERT_ACK, "ASSERT ACK"},
- {ICR_ASSERT_BSY, "ASSERT BSY"},
- {ICR_ASSERT_SEL, "ASSERT SEL"},
- {ICR_ASSERT_ATN, "ASSERT ATN"},
- {ICR_ASSERT_DATA, "ASSERT DATA"},
- {0, NULL}
-},
-mrs[] = {
- {MR_BLOCK_DMA_MODE, "MODE BLOCK DMA"},
- {MR_TARGET, "MODE TARGET"},
- {MR_ENABLE_PAR_CHECK, "MODE PARITY CHECK"},
- {MR_ENABLE_PAR_INTR, "MODE PARITY INTR"},
- {MR_ENABLE_EOP_INTR, "MODE EOP INTR"},
- {MR_MONITOR_BSY, "MODE MONITOR BSY"},
- {MR_DMA_MODE, "MODE DMA"},
- {MR_ARBITRATE, "MODE ARBITRATION"},
- {0, NULL}
-};
-
-/**
- * NCR5380_print - print scsi bus signals
- * @instance: adapter state to dump
- *
- * Print the SCSI bus signals for debugging purposes
- */
-
-static void NCR5380_print(struct Scsi_Host *instance)
-{
- unsigned char status, data, basr, mr, icr, i;
-
- data = NCR5380_read(CURRENT_SCSI_DATA_REG);
- status = NCR5380_read(STATUS_REG);
- mr = NCR5380_read(MODE_REG);
- icr = NCR5380_read(INITIATOR_COMMAND_REG);
- basr = NCR5380_read(BUS_AND_STATUS_REG);
-
- printk("STATUS_REG: %02x ", status);
- for (i = 0; signals[i].mask; ++i)
- if (status & signals[i].mask)
- printk(",%s", signals[i].name);
- printk("\nBASR: %02x ", basr);
- for (i = 0; basrs[i].mask; ++i)
- if (basr & basrs[i].mask)
- printk(",%s", basrs[i].name);
- printk("\nICR: %02x ", icr);
- for (i = 0; icrs[i].mask; ++i)
- if (icr & icrs[i].mask)
- printk(",%s", icrs[i].name);
- printk("\nMODE: %02x ", mr);
- for (i = 0; mrs[i].mask; ++i)
- if (mr & mrs[i].mask)
- printk(",%s", mrs[i].name);
- printk("\n");
-}
-
-static struct {
- unsigned char value;
- const char *name;
-} phases[] = {
- {PHASE_DATAOUT, "DATAOUT"},
- {PHASE_DATAIN, "DATAIN"},
- {PHASE_CMDOUT, "CMDOUT"},
- {PHASE_STATIN, "STATIN"},
- {PHASE_MSGOUT, "MSGOUT"},
- {PHASE_MSGIN, "MSGIN"},
- {PHASE_UNKNOWN, "UNKNOWN"}
-};
-
-/**
- * NCR5380_print_phase - show SCSI phase
- * @instance: adapter to dump
- *
- * Print the current SCSI phase for debugging purposes
- */
-
-static void NCR5380_print_phase(struct Scsi_Host *instance)
-{
- unsigned char status;
- int i;
-
- status = NCR5380_read(STATUS_REG);
- if (!(status & SR_REQ))
- shost_printk(KERN_DEBUG, instance, "REQ not asserted, phase unknown.\n");
- else {
- for (i = 0; (phases[i].value != PHASE_UNKNOWN) &&
- (phases[i].value != (status & PHASE_MASK)); ++i)
- ;
- shost_printk(KERN_DEBUG, instance, "phase %s\n", phases[i].name);
- }
-}
-#endif
-
-/**
- * NCR58380_info - report driver and host information
- * @instance: relevant scsi host instance
- *
- * For use as the host template info() handler.
- */
-
-static const char *NCR5380_info(struct Scsi_Host *instance)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
-
- return hostdata->info;
-}
-
-static void prepare_info(struct Scsi_Host *instance)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
-
- snprintf(hostdata->info, sizeof(hostdata->info),
- "%s, io_port 0x%lx, n_io_port %d, "
- "base 0x%lx, irq %d, "
- "can_queue %d, cmd_per_lun %d, "
- "sg_tablesize %d, this_id %d, "
- "flags { %s%s}, "
- "options { %s} ",
- instance->hostt->name, instance->io_port, instance->n_io_port,
- instance->base, instance->irq,
- instance->can_queue, instance->cmd_per_lun,
- instance->sg_tablesize, instance->this_id,
- hostdata->flags & FLAG_TAGGED_QUEUING ? "TAGGED_QUEUING " : "",
- hostdata->flags & FLAG_TOSHIBA_DELAY ? "TOSHIBA_DELAY " : "",
-#ifdef DIFFERENTIAL
- "DIFFERENTIAL "
-#endif
-#ifdef REAL_DMA
- "REAL_DMA "
-#endif
-#ifdef PARITY
- "PARITY "
-#endif
-#ifdef SUPPORT_TAGS
- "SUPPORT_TAGS "
-#endif
- "");
-}
-
-/**
- * NCR5380_init - initialise an NCR5380
- * @instance: adapter to configure
- * @flags: control flags
- *
- * Initializes *instance and corresponding 5380 chip,
- * with flags OR'd into the initial flags value.
- *
- * Notes : I assume that the host, hostno, and id bits have been
- * set correctly. I don't care about the irq and other fields.
- *
- * Returns 0 for success
- */
-
-static int __init NCR5380_init(struct Scsi_Host *instance, int flags)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
- int i;
- unsigned long deadline;
-
- hostdata->host = instance;
- hostdata->id_mask = 1 << instance->this_id;
- hostdata->id_higher_mask = 0;
- for (i = hostdata->id_mask; i <= 0x80; i <<= 1)
- if (i > hostdata->id_mask)
- hostdata->id_higher_mask |= i;
- for (i = 0; i < 8; ++i)
- hostdata->busy[i] = 0;
-#ifdef SUPPORT_TAGS
- init_tags(hostdata);
-#endif
-#if defined (REAL_DMA)
- hostdata->dma_len = 0;
-#endif
- spin_lock_init(&hostdata->lock);
- hostdata->connected = NULL;
- hostdata->sensing = NULL;
- INIT_LIST_HEAD(&hostdata->autosense);
- INIT_LIST_HEAD(&hostdata->unissued);
- INIT_LIST_HEAD(&hostdata->disconnected);
-
- hostdata->flags = flags;
-
- INIT_WORK(&hostdata->main_task, NCR5380_main);
- hostdata->work_q = alloc_workqueue("ncr5380_%d",
- WQ_UNBOUND | WQ_MEM_RECLAIM,
- 1, instance->host_no);
- if (!hostdata->work_q)
- return -ENOMEM;
-
- prepare_info(instance);
-
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- NCR5380_write(MODE_REG, MR_BASE);
- NCR5380_write(TARGET_COMMAND_REG, 0);
- NCR5380_write(SELECT_ENABLE_REG, 0);
-
- /* Calibrate register polling loop */
- i = 0;
- deadline = jiffies + 1;
- do {
- cpu_relax();
- } while (time_is_after_jiffies(deadline));
- deadline += msecs_to_jiffies(256);
- do {
- NCR5380_read(STATUS_REG);
- ++i;
- cpu_relax();
- } while (time_is_after_jiffies(deadline));
- hostdata->accesses_per_ms = i / 256;
-
- return 0;
-}
-
-/**
- * NCR5380_maybe_reset_bus - Detect and correct bus wedge problems.
- * @instance: adapter to check
- *
- * If the system crashed, it may have crashed with a connected target and
- * the SCSI bus busy. Check for BUS FREE phase. If not, try to abort the
- * currently established nexus, which we know nothing about. Failing that
- * do a bus reset.
- *
- * Note that a bus reset will cause the chip to assert IRQ.
- *
- * Returns 0 if successful, otherwise -ENXIO.
- */
-
-static int NCR5380_maybe_reset_bus(struct Scsi_Host *instance)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
- int pass;
-
- for (pass = 1; (NCR5380_read(STATUS_REG) & SR_BSY) && pass <= 6; ++pass) {
- switch (pass) {
- case 1:
- case 3:
- case 5:
- shost_printk(KERN_ERR, instance, "SCSI bus busy, waiting up to five seconds\n");
- NCR5380_poll_politely(instance,
- STATUS_REG, SR_BSY, 0, 5 * HZ);
- break;
- case 2:
- shost_printk(KERN_ERR, instance, "bus busy, attempting abort\n");
- do_abort(instance);
- break;
- case 4:
- shost_printk(KERN_ERR, instance, "bus busy, attempting reset\n");
- do_reset(instance);
- /* Wait after a reset; the SCSI standard calls for
- * 250ms, we wait 500ms to be on the safe side.
- * But some Toshiba CD-ROMs need ten times that.
- */
- if (hostdata->flags & FLAG_TOSHIBA_DELAY)
- msleep(2500);
- else
- msleep(500);
- break;
- case 6:
- shost_printk(KERN_ERR, instance, "bus locked solid\n");
- return -ENXIO;
- }
- }
- return 0;
-}
-
-/**
- * NCR5380_exit - remove an NCR5380
- * @instance: adapter to remove
- *
- * Assumes that no more work can be queued (e.g. by NCR5380_intr).
- */
-
-static void NCR5380_exit(struct Scsi_Host *instance)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
-
- cancel_work_sync(&hostdata->main_task);
- destroy_workqueue(hostdata->work_q);
-}
-
-/**
- * complete_cmd - finish processing a command and return it to the SCSI ML
- * @instance: the host instance
- * @cmd: command to complete
- */
-
-static void complete_cmd(struct Scsi_Host *instance,
- struct scsi_cmnd *cmd)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
-
- dsprintk(NDEBUG_QUEUES, instance, "complete_cmd: cmd %p\n", cmd);
-
- if (hostdata->sensing == cmd) {
- /* Autosense processing ends here */
- if ((cmd->result & 0xff) != SAM_STAT_GOOD) {
- scsi_eh_restore_cmnd(cmd, &hostdata->ses);
- set_host_byte(cmd, DID_ERROR);
- } else
- scsi_eh_restore_cmnd(cmd, &hostdata->ses);
- hostdata->sensing = NULL;
- }
-
-#ifdef SUPPORT_TAGS
- cmd_free_tag(cmd);
-#else
- hostdata->busy[scmd_id(cmd)] &= ~(1 << cmd->device->lun);
-#endif
- cmd->scsi_done(cmd);
-}
-
-/**
- * NCR5380_queue_command - queue a command
- * @instance: the relevant SCSI adapter
- * @cmd: SCSI command
- *
- * cmd is added to the per-instance issue queue, with minor
- * twiddling done to the host specific fields of cmd. If the
- * main coroutine is not running, it is restarted.
- */
-
-static int NCR5380_queue_command(struct Scsi_Host *instance,
- struct scsi_cmnd *cmd)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
- struct NCR5380_cmd *ncmd = scsi_cmd_priv(cmd);
- unsigned long flags;
-
-#if (NDEBUG & NDEBUG_NO_WRITE)
- switch (cmd->cmnd[0]) {
- case WRITE_6:
- case WRITE_10:
- shost_printk(KERN_DEBUG, instance, "WRITE attempted with NDEBUG_NO_WRITE set\n");
- cmd->result = (DID_ERROR << 16);
- cmd->scsi_done(cmd);
- return 0;
- }
-#endif /* (NDEBUG & NDEBUG_NO_WRITE) */
-
- cmd->result = 0;
-
- /*
- * ++roman: Just disabling the NCR interrupt isn't sufficient here,
- * because also a timer int can trigger an abort or reset, which would
- * alter queues and touch the lock.
- */
- if (!NCR5380_acquire_dma_irq(instance))
- return SCSI_MLQUEUE_HOST_BUSY;
-
- spin_lock_irqsave(&hostdata->lock, flags);
-
- /*
- * Insert the cmd into the issue queue. Note that REQUEST SENSE
- * commands are added to the head of the queue since any command will
- * clear the contingent allegiance condition that exists and the
- * sense data is only guaranteed to be valid while the condition exists.
- */
-
- if (cmd->cmnd[0] == REQUEST_SENSE)
- list_add(&ncmd->list, &hostdata->unissued);
- else
- list_add_tail(&ncmd->list, &hostdata->unissued);
-
- spin_unlock_irqrestore(&hostdata->lock, flags);
-
- dsprintk(NDEBUG_QUEUES, instance, "command %p added to %s of queue\n",
- cmd, (cmd->cmnd[0] == REQUEST_SENSE) ? "head" : "tail");
-
- /* Kick off command processing */
- queue_work(hostdata->work_q, &hostdata->main_task);
- return 0;
-}
-
-static inline void maybe_release_dma_irq(struct Scsi_Host *instance)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
-
- /* Caller does the locking needed to set & test these data atomically */
- if (list_empty(&hostdata->disconnected) &&
- list_empty(&hostdata->unissued) &&
- list_empty(&hostdata->autosense) &&
- !hostdata->connected &&
- !hostdata->selecting)
- NCR5380_release_dma_irq(instance);
-}
-
-/**
- * dequeue_next_cmd - dequeue a command for processing
- * @instance: the scsi host instance
- *
- * Priority is given to commands on the autosense queue. These commands
- * need autosense because of a CHECK CONDITION result.
- *
- * Returns a command pointer if a command is found for a target that is
- * not already busy. Otherwise returns NULL.
- */
-
-static struct scsi_cmnd *dequeue_next_cmd(struct Scsi_Host *instance)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
- struct NCR5380_cmd *ncmd;
- struct scsi_cmnd *cmd;
-
- if (hostdata->sensing || list_empty(&hostdata->autosense)) {
- list_for_each_entry(ncmd, &hostdata->unissued, list) {
- cmd = NCR5380_to_scmd(ncmd);
- dsprintk(NDEBUG_QUEUES, instance, "dequeue: cmd=%p target=%d busy=0x%02x lun=%llu\n",
- cmd, scmd_id(cmd), hostdata->busy[scmd_id(cmd)], cmd->device->lun);
-
- if (
-#ifdef SUPPORT_TAGS
- !is_lun_busy(cmd, 1)
-#else
- !(hostdata->busy[scmd_id(cmd)] & (1 << cmd->device->lun))
-#endif
- ) {
- list_del(&ncmd->list);
- dsprintk(NDEBUG_QUEUES, instance,
- "dequeue: removed %p from issue queue\n", cmd);
- return cmd;
- }
- }
- } else {
- /* Autosense processing begins here */
- ncmd = list_first_entry(&hostdata->autosense,
- struct NCR5380_cmd, list);
- list_del(&ncmd->list);
- cmd = NCR5380_to_scmd(ncmd);
- dsprintk(NDEBUG_QUEUES, instance,
- "dequeue: removed %p from autosense queue\n", cmd);
- scsi_eh_prep_cmnd(cmd, &hostdata->ses, NULL, 0, ~0);
- hostdata->sensing = cmd;
- return cmd;
- }
- return NULL;
-}
-
-static void requeue_cmd(struct Scsi_Host *instance, struct scsi_cmnd *cmd)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
- struct NCR5380_cmd *ncmd = scsi_cmd_priv(cmd);
-
- if (hostdata->sensing == cmd) {
- scsi_eh_restore_cmnd(cmd, &hostdata->ses);
- list_add(&ncmd->list, &hostdata->autosense);
- hostdata->sensing = NULL;
- } else
- list_add(&ncmd->list, &hostdata->unissued);
-}
-
-/**
- * NCR5380_main - NCR state machines
- *
- * NCR5380_main is a coroutine that runs as long as more work can
- * be done on the NCR5380 host adapters in a system. Both
- * NCR5380_queue_command() and NCR5380_intr() will try to start it
- * in case it is not running.
- */
-
-static void NCR5380_main(struct work_struct *work)
-{
- struct NCR5380_hostdata *hostdata =
- container_of(work, struct NCR5380_hostdata, main_task);
- struct Scsi_Host *instance = hostdata->host;
- int done;
-
- /*
- * ++roman: Just disabling the NCR interrupt isn't sufficient here,
- * because also a timer int can trigger an abort or reset, which can
- * alter queues and touch the Falcon lock.
- */
-
- do {
- done = 1;
-
- spin_lock_irq(&hostdata->lock);
- while (!hostdata->connected && !hostdata->selecting) {
- struct scsi_cmnd *cmd = dequeue_next_cmd(instance);
-
- if (!cmd)
- break;
-
- dsprintk(NDEBUG_MAIN, instance, "main: dequeued %p\n", cmd);
-
- /*
- * Attempt to establish an I_T_L nexus here.
- * On success, instance->hostdata->connected is set.
- * On failure, we must add the command back to the
- * issue queue so we can keep trying.
- */
- /*
- * REQUEST SENSE commands are issued without tagged
- * queueing, even on SCSI-II devices because the
- * contingent allegiance condition exists for the
- * entire unit.
- */
- /* ++roman: ...and the standard also requires that
- * REQUEST SENSE command are untagged.
- */
-
-#ifdef SUPPORT_TAGS
- cmd_get_tag(cmd, cmd->cmnd[0] != REQUEST_SENSE);
-#endif
- if (!NCR5380_select(instance, cmd)) {
- dsprintk(NDEBUG_MAIN, instance, "main: select complete\n");
- maybe_release_dma_irq(instance);
- } else {
- dsprintk(NDEBUG_MAIN | NDEBUG_QUEUES, instance,
- "main: select failed, returning %p to queue\n", cmd);
- requeue_cmd(instance, cmd);
-#ifdef SUPPORT_TAGS
- cmd_free_tag(cmd);
-#endif
- }
- }
- if (hostdata->connected
-#ifdef REAL_DMA
- && !hostdata->dma_len
-#endif
- ) {
- dsprintk(NDEBUG_MAIN, instance, "main: performing information transfer\n");
- NCR5380_information_transfer(instance);
- done = 0;
- }
- spin_unlock_irq(&hostdata->lock);
- if (!done)
- cond_resched();
- } while (!done);
-}
-
-
-#ifdef REAL_DMA
-/*
- * Function : void NCR5380_dma_complete (struct Scsi_Host *instance)
- *
- * Purpose : Called by interrupt handler when DMA finishes or a phase
- * mismatch occurs (which would finish the DMA transfer).
- *
- * Inputs : instance - this instance of the NCR5380.
- */
-
-static void NCR5380_dma_complete(struct Scsi_Host *instance)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
- int transferred;
- unsigned char **data;
- int *count;
- int saved_data = 0, overrun = 0;
- unsigned char p;
-
- if (hostdata->read_overruns) {
- p = hostdata->connected->SCp.phase;
- if (p & SR_IO) {
- udelay(10);
- if ((NCR5380_read(BUS_AND_STATUS_REG) &
- (BASR_PHASE_MATCH|BASR_ACK)) ==
- (BASR_PHASE_MATCH|BASR_ACK)) {
- saved_data = NCR5380_read(INPUT_DATA_REG);
- overrun = 1;
- dsprintk(NDEBUG_DMA, instance, "read overrun handled\n");
- }
- }
- }
-
-#if defined(CONFIG_SUN3)
- if ((sun3scsi_dma_finish(rq_data_dir(hostdata->connected->request)))) {
- pr_err("scsi%d: overrun in UDC counter -- not prepared to deal with this!\n",
- instance->host_no);
- BUG();
- }
-
- /* make sure we're not stuck in a data phase */
- if ((NCR5380_read(BUS_AND_STATUS_REG) & (BASR_PHASE_MATCH | BASR_ACK)) ==
- (BASR_PHASE_MATCH | BASR_ACK)) {
- pr_err("scsi%d: BASR %02x\n", instance->host_no,
- NCR5380_read(BUS_AND_STATUS_REG));
- pr_err("scsi%d: bus stuck in data phase -- probably a single byte overrun!\n",
- instance->host_no);
- BUG();
- }
-#endif
-
- NCR5380_write(MODE_REG, MR_BASE);
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- NCR5380_read(RESET_PARITY_INTERRUPT_REG);
-
- transferred = hostdata->dma_len - NCR5380_dma_residual(instance);
- hostdata->dma_len = 0;
-
- data = (unsigned char **)&hostdata->connected->SCp.ptr;
- count = &hostdata->connected->SCp.this_residual;
- *data += transferred;
- *count -= transferred;
-
- if (hostdata->read_overruns) {
- int cnt, toPIO;
-
- if ((NCR5380_read(STATUS_REG) & PHASE_MASK) == p && (p & SR_IO)) {
- cnt = toPIO = hostdata->read_overruns;
- if (overrun) {
- dprintk(NDEBUG_DMA, "Got an input overrun, using saved byte\n");
- *(*data)++ = saved_data;
- (*count)--;
- cnt--;
- toPIO--;
- }
- dprintk(NDEBUG_DMA, "Doing %d-byte PIO to 0x%08lx\n", cnt, (long)*data);
- NCR5380_transfer_pio(instance, &p, &cnt, data);
- *count -= toPIO - cnt;
- }
- }
-}
-#endif /* REAL_DMA */
-
-
-/**
- * NCR5380_intr - generic NCR5380 irq handler
- * @irq: interrupt number
- * @dev_id: device info
- *
- * Handle interrupts, reestablishing I_T_L or I_T_L_Q nexuses
- * from the disconnected queue, and restarting NCR5380_main()
- * as required.
- *
- * The chip can assert IRQ in any of six different conditions. The IRQ flag
- * is then cleared by reading the Reset Parity/Interrupt Register (RPIR).
- * Three of these six conditions are latched in the Bus and Status Register:
- * - End of DMA (cleared by ending DMA Mode)
- * - Parity error (cleared by reading RPIR)
- * - Loss of BSY (cleared by reading RPIR)
- * Two conditions have flag bits that are not latched:
- * - Bus phase mismatch (non-maskable in DMA Mode, cleared by ending DMA Mode)
- * - Bus reset (non-maskable)
- * The remaining condition has no flag bit at all:
- * - Selection/reselection
- *
- * Hence, establishing the cause(s) of any interrupt is partly guesswork.
- * In "The DP8490 and DP5380 Comparison Guide", National Semiconductor
- * claimed that "the design of the [DP8490] interrupt logic ensures
- * interrupts will not be lost (they can be on the DP5380)."
- * The L5380/53C80 datasheet from LOGIC Devices has more details.
- *
- * Checking for bus reset by reading RST is futile because of interrupt
- * latency, but a bus reset will reset chip logic. Checking for parity error
- * is unnecessary because that interrupt is never enabled. A Loss of BSY
- * condition will clear DMA Mode. We can tell when this occurs because the
- * the Busy Monitor interrupt is enabled together with DMA Mode.
- */
-
-static irqreturn_t NCR5380_intr(int irq, void *dev_id)
-{
- struct Scsi_Host *instance = dev_id;
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
- int handled = 0;
- unsigned char basr;
- unsigned long flags;
-
- spin_lock_irqsave(&hostdata->lock, flags);
-
- basr = NCR5380_read(BUS_AND_STATUS_REG);
- if (basr & BASR_IRQ) {
- unsigned char mr = NCR5380_read(MODE_REG);
- unsigned char sr = NCR5380_read(STATUS_REG);
-
- dsprintk(NDEBUG_INTR, instance, "IRQ %d, BASR 0x%02x, SR 0x%02x, MR 0x%02x\n",
- irq, basr, sr, mr);
-
-#if defined(REAL_DMA)
- if ((mr & MR_DMA_MODE) || (mr & MR_MONITOR_BSY)) {
- /* Probably End of DMA, Phase Mismatch or Loss of BSY.
- * We ack IRQ after clearing Mode Register. Workarounds
- * for End of DMA errata need to happen in DMA Mode.
- */
-
- dsprintk(NDEBUG_INTR, instance, "interrupt in DMA mode\n");
-
- if (hostdata->connected) {
- NCR5380_dma_complete(instance);
- queue_work(hostdata->work_q, &hostdata->main_task);
- } else {
- NCR5380_write(MODE_REG, MR_BASE);
- NCR5380_read(RESET_PARITY_INTERRUPT_REG);
- }
- } else
-#endif /* REAL_DMA */
- if ((NCR5380_read(CURRENT_SCSI_DATA_REG) & hostdata->id_mask) &&
- (sr & (SR_SEL | SR_IO | SR_BSY | SR_RST)) == (SR_SEL | SR_IO)) {
- /* Probably reselected */
- NCR5380_write(SELECT_ENABLE_REG, 0);
- NCR5380_read(RESET_PARITY_INTERRUPT_REG);
-
- dsprintk(NDEBUG_INTR, instance, "interrupt with SEL and IO\n");
-
- if (!hostdata->connected) {
- NCR5380_reselect(instance);
- queue_work(hostdata->work_q, &hostdata->main_task);
- }
- if (!hostdata->connected)
- NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
- } else {
- /* Probably Bus Reset */
- NCR5380_read(RESET_PARITY_INTERRUPT_REG);
-
- dsprintk(NDEBUG_INTR, instance, "unknown interrupt\n");
-#ifdef SUN3_SCSI_VME
- dregs->csr |= CSR_DMA_ENABLE;
-#endif
- }
- handled = 1;
- } else {
- shost_printk(KERN_NOTICE, instance, "interrupt without IRQ bit\n");
-#ifdef SUN3_SCSI_VME
- dregs->csr |= CSR_DMA_ENABLE;
-#endif
- }
-
- spin_unlock_irqrestore(&hostdata->lock, flags);
-
- return IRQ_RETVAL(handled);
-}
-
-/*
- * Function : int NCR5380_select(struct Scsi_Host *instance,
- * struct scsi_cmnd *cmd)
- *
- * Purpose : establishes I_T_L or I_T_L_Q nexus for new or existing command,
- * including ARBITRATION, SELECTION, and initial message out for
- * IDENTIFY and queue messages.
- *
- * Inputs : instance - instantiation of the 5380 driver on which this
- * target lives, cmd - SCSI command to execute.
- *
- * Returns cmd if selection failed but should be retried,
- * NULL if selection failed and should not be retried, or
- * NULL if selection succeeded (hostdata->connected == cmd).
- *
- * Side effects :
- * If bus busy, arbitration failed, etc, NCR5380_select() will exit
- * with registers as they should have been on entry - ie
- * SELECT_ENABLE will be set appropriately, the NCR5380
- * will cease to drive any SCSI bus signals.
- *
- * If successful : I_T_L or I_T_L_Q nexus will be established,
- * instance->connected will be set to cmd.
- * SELECT interrupt will be disabled.
- *
- * If failed (no target) : cmd->scsi_done() will be called, and the
- * cmd->result host byte set to DID_BAD_TARGET.
- */
-
-static struct scsi_cmnd *NCR5380_select(struct Scsi_Host *instance,
- struct scsi_cmnd *cmd)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
- unsigned char tmp[3], phase;
- unsigned char *data;
- int len;
- int err;
-
- NCR5380_dprint(NDEBUG_ARBITRATION, instance);
- dsprintk(NDEBUG_ARBITRATION, instance, "starting arbitration, id = %d\n",
- instance->this_id);
-
- /*
- * Arbitration and selection phases are slow and involve dropping the
- * lock, so we have to watch out for EH. An exception handler may
- * change 'selecting' to NULL. This function will then return NULL
- * so that the caller will forget about 'cmd'. (During information
- * transfer phases, EH may change 'connected' to NULL.)
- */
- hostdata->selecting = cmd;
-
- /*
- * Set the phase bits to 0, otherwise the NCR5380 won't drive the
- * data bus during SELECTION.
- */
-
- NCR5380_write(TARGET_COMMAND_REG, 0);
-
- /*
- * Start arbitration.
- */
-
- NCR5380_write(OUTPUT_DATA_REG, hostdata->id_mask);
- NCR5380_write(MODE_REG, MR_ARBITRATE);
-
- /* The chip now waits for BUS FREE phase. Then after the 800 ns
- * Bus Free Delay, arbitration will begin.
- */
-
- spin_unlock_irq(&hostdata->lock);
- err = NCR5380_poll_politely2(instance, MODE_REG, MR_ARBITRATE, 0,
- INITIATOR_COMMAND_REG, ICR_ARBITRATION_PROGRESS,
- ICR_ARBITRATION_PROGRESS, HZ);
- spin_lock_irq(&hostdata->lock);
- if (!(NCR5380_read(MODE_REG) & MR_ARBITRATE)) {
- /* Reselection interrupt */
- goto out;
- }
- if (!hostdata->selecting) {
- /* Command was aborted */
- NCR5380_write(MODE_REG, MR_BASE);
- goto out;
- }
- if (err < 0) {
- NCR5380_write(MODE_REG, MR_BASE);
- shost_printk(KERN_ERR, instance,
- "select: arbitration timeout\n");
- goto out;
- }
- spin_unlock_irq(&hostdata->lock);
-
- /* The SCSI-2 arbitration delay is 2.4 us */
- udelay(3);
-
- /* Check for lost arbitration */
- if ((NCR5380_read(INITIATOR_COMMAND_REG) & ICR_ARBITRATION_LOST) ||
- (NCR5380_read(CURRENT_SCSI_DATA_REG) & hostdata->id_higher_mask) ||
- (NCR5380_read(INITIATOR_COMMAND_REG) & ICR_ARBITRATION_LOST)) {
- NCR5380_write(MODE_REG, MR_BASE);
- dsprintk(NDEBUG_ARBITRATION, instance, "lost arbitration, deasserting MR_ARBITRATE\n");
- spin_lock_irq(&hostdata->lock);
- goto out;
- }
-
- /* After/during arbitration, BSY should be asserted.
- * IBM DPES-31080 Version S31Q works now
- * Tnx to Thomas_Roesch@m2.maus.de for finding this! (Roman)
- */
- NCR5380_write(INITIATOR_COMMAND_REG,
- ICR_BASE | ICR_ASSERT_SEL | ICR_ASSERT_BSY);
-
- /*
- * Again, bus clear + bus settle time is 1.2us, however, this is
- * a minimum so we'll udelay ceil(1.2)
- */
-
- if (hostdata->flags & FLAG_TOSHIBA_DELAY)
- udelay(15);
- else
- udelay(2);
-
- spin_lock_irq(&hostdata->lock);
-
- /* NCR5380_reselect() clears MODE_REG after a reselection interrupt */
- if (!(NCR5380_read(MODE_REG) & MR_ARBITRATE))
- goto out;
-
- if (!hostdata->selecting) {
- NCR5380_write(MODE_REG, MR_BASE);
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- goto out;
- }
-
- dsprintk(NDEBUG_ARBITRATION, instance, "won arbitration\n");
-
- /*
- * Now that we have won arbitration, start Selection process, asserting
- * the host and target ID's on the SCSI bus.
- */
-
- NCR5380_write(OUTPUT_DATA_REG, hostdata->id_mask | (1 << scmd_id(cmd)));
-
- /*
- * Raise ATN while SEL is true before BSY goes false from arbitration,
- * since this is the only way to guarantee that we'll get a MESSAGE OUT
- * phase immediately after selection.
- */
-
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_BSY |
- ICR_ASSERT_DATA | ICR_ASSERT_ATN | ICR_ASSERT_SEL);
- NCR5380_write(MODE_REG, MR_BASE);
-
- /*
- * Reselect interrupts must be turned off prior to the dropping of BSY,
- * otherwise we will trigger an interrupt.
- */
- NCR5380_write(SELECT_ENABLE_REG, 0);
-
- spin_unlock_irq(&hostdata->lock);
-
- /*
- * The initiator shall then wait at least two deskew delays and release
- * the BSY signal.
- */
- udelay(1); /* wingel -- wait two bus deskew delay >2*45ns */
-
- /* Reset BSY */
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_DATA |
- ICR_ASSERT_ATN | ICR_ASSERT_SEL);
-
- /*
- * Something weird happens when we cease to drive BSY - looks
- * like the board/chip is letting us do another read before the
- * appropriate propagation delay has expired, and we're confusing
- * a BSY signal from ourselves as the target's response to SELECTION.
- *
- * A small delay (the 'C++' frontend breaks the pipeline with an
- * unnecessary jump, making it work on my 386-33/Trantor T128, the
- * tighter 'C' code breaks and requires this) solves the problem -
- * the 1 us delay is arbitrary, and only used because this delay will
- * be the same on other platforms and since it works here, it should
- * work there.
- *
- * wingel suggests that this could be due to failing to wait
- * one deskew delay.
- */
-
- udelay(1);
-
- dsprintk(NDEBUG_SELECTION, instance, "selecting target %d\n", scmd_id(cmd));
-
- /*
- * The SCSI specification calls for a 250 ms timeout for the actual
- * selection.
- */
-
- err = NCR5380_poll_politely(instance, STATUS_REG, SR_BSY, SR_BSY,
- msecs_to_jiffies(250));
-
- if ((NCR5380_read(STATUS_REG) & (SR_SEL | SR_IO)) == (SR_SEL | SR_IO)) {
- spin_lock_irq(&hostdata->lock);
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- NCR5380_reselect(instance);
- if (!hostdata->connected)
- NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
- shost_printk(KERN_ERR, instance, "reselection after won arbitration?\n");
- goto out;
- }
-
- if (err < 0) {
- spin_lock_irq(&hostdata->lock);
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
- /* Can't touch cmd if it has been reclaimed by the scsi ML */
- if (hostdata->selecting) {
- cmd->result = DID_BAD_TARGET << 16;
- complete_cmd(instance, cmd);
- dsprintk(NDEBUG_SELECTION, instance, "target did not respond within 250ms\n");
- cmd = NULL;
- }
- goto out;
- }
-
- /*
- * No less than two deskew delays after the initiator detects the
- * BSY signal is true, it shall release the SEL signal and may
- * change the DATA BUS. -wingel
- */
-
- udelay(1);
-
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_ATN);
-
- /*
- * Since we followed the SCSI spec, and raised ATN while SEL
- * was true but before BSY was false during selection, the information
- * transfer phase should be a MESSAGE OUT phase so that we can send the
- * IDENTIFY message.
- *
- * If SCSI-II tagged queuing is enabled, we also send a SIMPLE_QUEUE_TAG
- * message (2 bytes) with a tag ID that we increment with every command
- * until it wraps back to 0.
- *
- * XXX - it turns out that there are some broken SCSI-II devices,
- * which claim to support tagged queuing but fail when more than
- * some number of commands are issued at once.
- */
-
- /* Wait for start of REQ/ACK handshake */
-
- err = NCR5380_poll_politely(instance, STATUS_REG, SR_REQ, SR_REQ, HZ);
- spin_lock_irq(&hostdata->lock);
- if (err < 0) {
- shost_printk(KERN_ERR, instance, "select: REQ timeout\n");
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
- goto out;
- }
- if (!hostdata->selecting) {
- do_abort(instance);
- goto out;
- }
-
- dsprintk(NDEBUG_SELECTION, instance, "target %d selected, going into MESSAGE OUT phase.\n",
- scmd_id(cmd));
- tmp[0] = IDENTIFY(1, cmd->device->lun);
-
-#ifdef SUPPORT_TAGS
- if (cmd->tag != TAG_NONE) {
- tmp[1] = hostdata->last_message = SIMPLE_QUEUE_TAG;
- tmp[2] = cmd->tag;
- len = 3;
- } else
- len = 1;
-#else
- len = 1;
- cmd->tag = 0;
-#endif /* SUPPORT_TAGS */
-
- /* Send message(s) */
- data = tmp;
- phase = PHASE_MSGOUT;
- NCR5380_transfer_pio(instance, &phase, &len, &data);
- dsprintk(NDEBUG_SELECTION, instance, "nexus established.\n");
- /* XXX need to handle errors here */
-
- hostdata->connected = cmd;
-#ifndef SUPPORT_TAGS
- hostdata->busy[cmd->device->id] |= 1 << cmd->device->lun;
-#endif
-#ifdef SUN3_SCSI_VME
- dregs->csr |= CSR_INTR;
-#endif
-
- initialize_SCp(cmd);
-
- cmd = NULL;
-
-out:
- if (!hostdata->selecting)
- return NULL;
- hostdata->selecting = NULL;
- return cmd;
-}
-
-/*
- * Function : int NCR5380_transfer_pio (struct Scsi_Host *instance,
- * unsigned char *phase, int *count, unsigned char **data)
- *
- * Purpose : transfers data in given phase using polled I/O
- *
- * Inputs : instance - instance of driver, *phase - pointer to
- * what phase is expected, *count - pointer to number of
- * bytes to transfer, **data - pointer to data pointer.
- *
- * Returns : -1 when different phase is entered without transferring
- * maximum number of bytes, 0 if all bytes are transferred or exit
- * is in same phase.
- *
- * Also, *phase, *count, *data are modified in place.
- *
- * XXX Note : handling for bus free may be useful.
- */
-
-/*
- * Note : this code is not as quick as it could be, however it
- * IS 100% reliable, and for the actual data transfer where speed
- * counts, we will always do a pseudo DMA or DMA transfer.
- */
-
-static int NCR5380_transfer_pio(struct Scsi_Host *instance,
- unsigned char *phase, int *count,
- unsigned char **data)
-{
- unsigned char p = *phase, tmp;
- int c = *count;
- unsigned char *d = *data;
-
- /*
- * The NCR5380 chip will only drive the SCSI bus when the
- * phase specified in the appropriate bits of the TARGET COMMAND
- * REGISTER match the STATUS REGISTER
- */
-
- NCR5380_write(TARGET_COMMAND_REG, PHASE_SR_TO_TCR(p));
-
- do {
- /*
- * Wait for assertion of REQ, after which the phase bits will be
- * valid
- */
-
- if (NCR5380_poll_politely(instance, STATUS_REG, SR_REQ, SR_REQ, HZ) < 0)
- break;
-
- dsprintk(NDEBUG_HANDSHAKE, instance, "REQ asserted\n");
-
- /* Check for phase mismatch */
- if ((NCR5380_read(STATUS_REG) & PHASE_MASK) != p) {
- dsprintk(NDEBUG_PIO, instance, "phase mismatch\n");
- NCR5380_dprint_phase(NDEBUG_PIO, instance);
- break;
- }
-
- /* Do actual transfer from SCSI bus to / from memory */
- if (!(p & SR_IO))
- NCR5380_write(OUTPUT_DATA_REG, *d);
- else
- *d = NCR5380_read(CURRENT_SCSI_DATA_REG);
-
- ++d;
-
- /*
- * The SCSI standard suggests that in MSGOUT phase, the initiator
- * should drop ATN on the last byte of the message phase
- * after REQ has been asserted for the handshake but before
- * the initiator raises ACK.
- */
-
- if (!(p & SR_IO)) {
- if (!((p & SR_MSG) && c > 1)) {
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_DATA);
- NCR5380_dprint(NDEBUG_PIO, instance);
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE |
- ICR_ASSERT_DATA | ICR_ASSERT_ACK);
- } else {
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE |
- ICR_ASSERT_DATA | ICR_ASSERT_ATN);
- NCR5380_dprint(NDEBUG_PIO, instance);
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE |
- ICR_ASSERT_DATA | ICR_ASSERT_ATN | ICR_ASSERT_ACK);
- }
- } else {
- NCR5380_dprint(NDEBUG_PIO, instance);
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_ACK);
- }
-
- if (NCR5380_poll_politely(instance,
- STATUS_REG, SR_REQ, 0, 5 * HZ) < 0)
- break;
-
- dsprintk(NDEBUG_HANDSHAKE, instance, "REQ negated, handshake complete\n");
-
-/*
- * We have several special cases to consider during REQ/ACK handshaking :
- * 1. We were in MSGOUT phase, and we are on the last byte of the
- * message. ATN must be dropped as ACK is dropped.
- *
- * 2. We are in a MSGIN phase, and we are on the last byte of the
- * message. We must exit with ACK asserted, so that the calling
- * code may raise ATN before dropping ACK to reject the message.
- *
- * 3. ACK and ATN are clear and the target may proceed as normal.
- */
- if (!(p == PHASE_MSGIN && c == 1)) {
- if (p == PHASE_MSGOUT && c > 1)
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_ATN);
- else
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- }
- } while (--c);
-
- dsprintk(NDEBUG_PIO, instance, "residual %d\n", c);
-
- *count = c;
- *data = d;
- tmp = NCR5380_read(STATUS_REG);
- /* The phase read from the bus is valid if either REQ is (already)
- * asserted or if ACK hasn't been released yet. The latter applies if
- * we're in MSG IN, DATA IN or STATUS and all bytes have been received.
- */
- if ((tmp & SR_REQ) || ((tmp & SR_IO) && c == 0))
- *phase = tmp & PHASE_MASK;
- else
- *phase = PHASE_UNKNOWN;
-
- if (!c || (*phase == p))
- return 0;
- else
- return -1;
-}
-
-/**
- * do_reset - issue a reset command
- * @instance: adapter to reset
- *
- * Issue a reset sequence to the NCR5380 and try and get the bus
- * back into sane shape.
- *
- * This clears the reset interrupt flag because there may be no handler for
- * it. When the driver is initialized, the NCR5380_intr() handler has not yet
- * been installed. And when in EH we may have released the ST DMA interrupt.
- */
-
-static void do_reset(struct Scsi_Host *instance)
-{
- unsigned long flags;
-
- local_irq_save(flags);
- NCR5380_write(TARGET_COMMAND_REG,
- PHASE_SR_TO_TCR(NCR5380_read(STATUS_REG) & PHASE_MASK));
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_RST);
- udelay(50);
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- (void)NCR5380_read(RESET_PARITY_INTERRUPT_REG);
- local_irq_restore(flags);
-}
-
-/**
- * do_abort - abort the currently established nexus by going to
- * MESSAGE OUT phase and sending an ABORT message.
- * @instance: relevant scsi host instance
- *
- * Returns 0 on success, -1 on failure.
- */
-
-static int do_abort(struct Scsi_Host *instance)
-{
- unsigned char *msgptr, phase, tmp;
- int len;
- int rc;
-
- /* Request message out phase */
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_ATN);
-
- /*
- * Wait for the target to indicate a valid phase by asserting
- * REQ. Once this happens, we'll have either a MSGOUT phase
- * and can immediately send the ABORT message, or we'll have some
- * other phase and will have to source/sink data.
- *
- * We really don't care what value was on the bus or what value
- * the target sees, so we just handshake.
- */
-
- rc = NCR5380_poll_politely(instance, STATUS_REG, SR_REQ, SR_REQ, 10 * HZ);
- if (rc < 0)
- goto timeout;
-
- tmp = NCR5380_read(STATUS_REG) & PHASE_MASK;
-
- NCR5380_write(TARGET_COMMAND_REG, PHASE_SR_TO_TCR(tmp));
-
- if (tmp != PHASE_MSGOUT) {
- NCR5380_write(INITIATOR_COMMAND_REG,
- ICR_BASE | ICR_ASSERT_ATN | ICR_ASSERT_ACK);
- rc = NCR5380_poll_politely(instance, STATUS_REG, SR_REQ, 0, 3 * HZ);
- if (rc < 0)
- goto timeout;
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_ATN);
- }
-
- tmp = ABORT;
- msgptr = &tmp;
- len = 1;
- phase = PHASE_MSGOUT;
- NCR5380_transfer_pio(instance, &phase, &len, &msgptr);
-
- /*
- * If we got here, and the command completed successfully,
- * we're about to go into bus free state.
- */
-
- return len ? -1 : 0;
-
-timeout:
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- return -1;
-}
-
-#if defined(REAL_DMA)
-/*
- * Function : int NCR5380_transfer_dma (struct Scsi_Host *instance,
- * unsigned char *phase, int *count, unsigned char **data)
- *
- * Purpose : transfers data in given phase using either real
- * or pseudo DMA.
- *
- * Inputs : instance - instance of driver, *phase - pointer to
- * what phase is expected, *count - pointer to number of
- * bytes to transfer, **data - pointer to data pointer.
- *
- * Returns : -1 when different phase is entered without transferring
- * maximum number of bytes, 0 if all bytes or transferred or exit
- * is in same phase.
- *
- * Also, *phase, *count, *data are modified in place.
- */
-
-
-static int NCR5380_transfer_dma(struct Scsi_Host *instance,
- unsigned char *phase, int *count,
- unsigned char **data)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
- register int c = *count;
- register unsigned char p = *phase;
-
-#if defined(CONFIG_SUN3)
- /* sanity check */
- if (!sun3_dma_setup_done) {
- pr_err("scsi%d: transfer_dma without setup!\n",
- instance->host_no);
- BUG();
- }
- hostdata->dma_len = c;
-
- dsprintk(NDEBUG_DMA, instance, "initializing DMA %s: length %d, address %p\n",
- (p & SR_IO) ? "receive" : "send", c, *data);
-
- /* netbsd turns off ints here, why not be safe and do it too */
-
- /* send start chain */
- sun3scsi_dma_start(c, *data);
-
- NCR5380_write(TARGET_COMMAND_REG, PHASE_SR_TO_TCR(p));
- NCR5380_write(MODE_REG, MR_BASE | MR_DMA_MODE | MR_MONITOR_BSY |
- MR_ENABLE_EOP_INTR);
- if (p & SR_IO) {
- NCR5380_write(INITIATOR_COMMAND_REG, 0);
- NCR5380_write(START_DMA_INITIATOR_RECEIVE_REG, 0);
- } else {
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_ASSERT_DATA);
- NCR5380_write(START_DMA_SEND_REG, 0);
- }
-
-#ifdef SUN3_SCSI_VME
- dregs->csr |= CSR_DMA_ENABLE;
-#endif
-
- sun3_dma_active = 1;
-
-#else /* !defined(CONFIG_SUN3) */
- register unsigned char *d = *data;
- unsigned char tmp;
-
- if ((tmp = (NCR5380_read(STATUS_REG) & PHASE_MASK)) != p) {
- *phase = tmp;
- return -1;
- }
-
- if (hostdata->read_overruns && (p & SR_IO))
- c -= hostdata->read_overruns;
-
- dsprintk(NDEBUG_DMA, instance, "initializing DMA %s: length %d, address %p\n",
- (p & SR_IO) ? "receive" : "send", c, d);
-
- NCR5380_write(TARGET_COMMAND_REG, PHASE_SR_TO_TCR(p));
- NCR5380_write(MODE_REG, MR_BASE | MR_DMA_MODE | MR_MONITOR_BSY |
- MR_ENABLE_EOP_INTR);
-
- if (!(hostdata->flags & FLAG_LATE_DMA_SETUP)) {
- /* On the Medusa, it is a must to initialize the DMA before
- * starting the NCR. This is also the cleaner way for the TT.
- */
- hostdata->dma_len = (p & SR_IO) ?
- NCR5380_dma_read_setup(instance, d, c) :
- NCR5380_dma_write_setup(instance, d, c);
- }
-
- if (p & SR_IO)
- NCR5380_write(START_DMA_INITIATOR_RECEIVE_REG, 0);
- else {
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_DATA);
- NCR5380_write(START_DMA_SEND_REG, 0);
- }
-
- if (hostdata->flags & FLAG_LATE_DMA_SETUP) {
- /* On the Falcon, the DMA setup must be done after the last */
- /* NCR access, else the DMA setup gets trashed!
- */
- hostdata->dma_len = (p & SR_IO) ?
- NCR5380_dma_read_setup(instance, d, c) :
- NCR5380_dma_write_setup(instance, d, c);
- }
-#endif /* !defined(CONFIG_SUN3) */
-
- return 0;
-}
-#endif /* defined(REAL_DMA) */
-
-/*
- * Function : NCR5380_information_transfer (struct Scsi_Host *instance)
- *
- * Purpose : run through the various SCSI phases and do as the target
- * directs us to. Operates on the currently connected command,
- * instance->connected.
- *
- * Inputs : instance, instance for which we are doing commands
- *
- * Side effects : SCSI things happen, the disconnected queue will be
- * modified if a command disconnects, *instance->connected will
- * change.
- *
- * XXX Note : we need to watch for bus free or a reset condition here
- * to recover from an unexpected bus free condition.
- */
-
-static void NCR5380_information_transfer(struct Scsi_Host *instance)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
- unsigned char msgout = NOP;
- int sink = 0;
- int len;
- int transfersize;
- unsigned char *data;
- unsigned char phase, tmp, extended_msg[10], old_phase = 0xff;
- struct scsi_cmnd *cmd;
-
-#ifdef SUN3_SCSI_VME
- dregs->csr |= CSR_INTR;
-#endif
-
- while ((cmd = hostdata->connected)) {
- struct NCR5380_cmd *ncmd = scsi_cmd_priv(cmd);
-
- tmp = NCR5380_read(STATUS_REG);
- /* We only have a valid SCSI phase when REQ is asserted */
- if (tmp & SR_REQ) {
- phase = (tmp & PHASE_MASK);
- if (phase != old_phase) {
- old_phase = phase;
- NCR5380_dprint_phase(NDEBUG_INFORMATION, instance);
- }
-#if defined(CONFIG_SUN3)
- if (phase == PHASE_CMDOUT) {
-#if defined(REAL_DMA)
- void *d;
- unsigned long count;
-
- if (!cmd->SCp.this_residual && cmd->SCp.buffers_residual) {
- count = cmd->SCp.buffer->length;
- d = sg_virt(cmd->SCp.buffer);
- } else {
- count = cmd->SCp.this_residual;
- d = cmd->SCp.ptr;
- }
- /* this command setup for dma yet? */
- if ((count >= DMA_MIN_SIZE) && (sun3_dma_setup_done != cmd)) {
- if (cmd->request->cmd_type == REQ_TYPE_FS) {
- sun3scsi_dma_setup(instance, d, count,
- rq_data_dir(cmd->request));
- sun3_dma_setup_done = cmd;
- }
- }
-#endif
-#ifdef SUN3_SCSI_VME
- dregs->csr |= CSR_INTR;
-#endif
- }
-#endif /* CONFIG_SUN3 */
-
- if (sink && (phase != PHASE_MSGOUT)) {
- NCR5380_write(TARGET_COMMAND_REG, PHASE_SR_TO_TCR(tmp));
-
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_ATN |
- ICR_ASSERT_ACK);
- while (NCR5380_read(STATUS_REG) & SR_REQ)
- ;
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE |
- ICR_ASSERT_ATN);
- sink = 0;
- continue;
- }
-
- switch (phase) {
- case PHASE_DATAOUT:
-#if (NDEBUG & NDEBUG_NO_DATAOUT)
- shost_printk(KERN_DEBUG, instance, "NDEBUG_NO_DATAOUT set, attempted DATAOUT aborted\n");
- sink = 1;
- do_abort(instance);
- cmd->result = DID_ERROR << 16;
- complete_cmd(instance, cmd);
- hostdata->connected = NULL;
- return;
-#endif
- case PHASE_DATAIN:
- /*
- * If there is no room left in the current buffer in the
- * scatter-gather list, move onto the next one.
- */
-
- if (!cmd->SCp.this_residual && cmd->SCp.buffers_residual) {
- ++cmd->SCp.buffer;
- --cmd->SCp.buffers_residual;
- cmd->SCp.this_residual = cmd->SCp.buffer->length;
- cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
- merge_contiguous_buffers(cmd);
- dsprintk(NDEBUG_INFORMATION, instance, "%d bytes and %d buffers left\n",
- cmd->SCp.this_residual,
- cmd->SCp.buffers_residual);
- }
-
- /*
- * The preferred transfer method is going to be
- * PSEUDO-DMA for systems that are strictly PIO,
- * since we can let the hardware do the handshaking.
- *
- * For this to work, we need to know the transfersize
- * ahead of time, since the pseudo-DMA code will sit
- * in an unconditional loop.
- */
-
- /* ++roman: I suggest, this should be
- * #if def(REAL_DMA)
- * instead of leaving REAL_DMA out.
- */
-
-#if defined(REAL_DMA)
-#if !defined(CONFIG_SUN3)
- transfersize = 0;
- if (!cmd->device->borken)
-#endif
- transfersize = NCR5380_dma_xfer_len(instance, cmd, phase);
-
- if (transfersize >= DMA_MIN_SIZE) {
- len = transfersize;
- cmd->SCp.phase = phase;
- if (NCR5380_transfer_dma(instance, &phase,
- &len, (unsigned char **)&cmd->SCp.ptr)) {
- /*
- * If the watchdog timer fires, all future
- * accesses to this device will use the
- * polled-IO.
- */
- scmd_printk(KERN_INFO, cmd,
- "switching to slow handshake\n");
- cmd->device->borken = 1;
- sink = 1;
- do_abort(instance);
- cmd->result = DID_ERROR << 16;
- /* XXX - need to source or sink data here, as appropriate */
- } else {
-#ifdef REAL_DMA
- /* ++roman: When using real DMA,
- * information_transfer() should return after
- * starting DMA since it has nothing more to
- * do.
- */
- return;
-#else
- cmd->SCp.this_residual -= transfersize - len;
-#endif
- }
- } else
-#endif /* defined(REAL_DMA) */
- {
- /* Break up transfer into 3 ms chunks,
- * presuming 6 accesses per handshake.
- */
- transfersize = min((unsigned long)cmd->SCp.this_residual,
- hostdata->accesses_per_ms / 2);
- len = transfersize;
- NCR5380_transfer_pio(instance, &phase, &len,
- (unsigned char **)&cmd->SCp.ptr);
- cmd->SCp.this_residual -= transfersize - len;
- }
-#if defined(CONFIG_SUN3) && defined(REAL_DMA)
- /* if we had intended to dma that command clear it */
- if (sun3_dma_setup_done == cmd)
- sun3_dma_setup_done = NULL;
-#endif
- return;
- case PHASE_MSGIN:
- len = 1;
- data = &tmp;
- NCR5380_transfer_pio(instance, &phase, &len, &data);
- cmd->SCp.Message = tmp;
-
- switch (tmp) {
- case ABORT:
- case COMMAND_COMPLETE:
- /* Accept message by clearing ACK */
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- dsprintk(NDEBUG_QUEUES, instance,
- "COMMAND COMPLETE %p target %d lun %llu\n",
- cmd, scmd_id(cmd), cmd->device->lun);
-
- hostdata->connected = NULL;
-#ifdef SUPPORT_TAGS
- cmd_free_tag(cmd);
- if (status_byte(cmd->SCp.Status) == QUEUE_FULL) {
- u8 lun = cmd->device->lun;
- struct tag_alloc *ta = &hostdata->TagAlloc[scmd_id(cmd)][lun];
-
- dsprintk(NDEBUG_TAGS, instance,
- "QUEUE_FULL %p target %d lun %d nr_allocated %d\n",
- cmd, scmd_id(cmd), lun, ta->nr_allocated);
- if (ta->queue_size > ta->nr_allocated)
- ta->queue_size = ta->nr_allocated;
- }
-#endif
-
- cmd->result &= ~0xffff;
- cmd->result |= cmd->SCp.Status;
- cmd->result |= cmd->SCp.Message << 8;
-
- if (cmd->cmnd[0] == REQUEST_SENSE)
- complete_cmd(instance, cmd);
- else {
- if (cmd->SCp.Status == SAM_STAT_CHECK_CONDITION ||
- cmd->SCp.Status == SAM_STAT_COMMAND_TERMINATED) {
- dsprintk(NDEBUG_QUEUES, instance, "autosense: adding cmd %p to tail of autosense queue\n",
- cmd);
- list_add_tail(&ncmd->list,
- &hostdata->autosense);
- } else
- complete_cmd(instance, cmd);
- }
-
- /*
- * Restore phase bits to 0 so an interrupted selection,
- * arbitration can resume.
- */
- NCR5380_write(TARGET_COMMAND_REG, 0);
-
- /* Enable reselect interrupts */
- NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
-
- maybe_release_dma_irq(instance);
- return;
- case MESSAGE_REJECT:
- /* Accept message by clearing ACK */
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- switch (hostdata->last_message) {
- case HEAD_OF_QUEUE_TAG:
- case ORDERED_QUEUE_TAG:
- case SIMPLE_QUEUE_TAG:
- /* The target obviously doesn't support tagged
- * queuing, even though it announced this ability in
- * its INQUIRY data ?!? (maybe only this LUN?) Ok,
- * clear 'tagged_supported' and lock the LUN, since
- * the command is treated as untagged further on.
- */
- cmd->device->tagged_supported = 0;
- hostdata->busy[cmd->device->id] |= (1 << cmd->device->lun);
- cmd->tag = TAG_NONE;
- dsprintk(NDEBUG_TAGS, instance, "target %d lun %llu rejected QUEUE_TAG message; tagged queuing disabled\n",
- scmd_id(cmd), cmd->device->lun);
- break;
- }
- break;
- case DISCONNECT:
- /* Accept message by clearing ACK */
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- hostdata->connected = NULL;
- list_add(&ncmd->list, &hostdata->disconnected);
- dsprintk(NDEBUG_INFORMATION | NDEBUG_QUEUES,
- instance, "connected command %p for target %d lun %llu moved to disconnected queue\n",
- cmd, scmd_id(cmd), cmd->device->lun);
-
- /*
- * Restore phase bits to 0 so an interrupted selection,
- * arbitration can resume.
- */
- NCR5380_write(TARGET_COMMAND_REG, 0);
-
- /* Enable reselect interrupts */
- NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
-#ifdef SUN3_SCSI_VME
- dregs->csr |= CSR_DMA_ENABLE;
-#endif
- return;
- /*
- * The SCSI data pointer is *IMPLICITLY* saved on a disconnect
- * operation, in violation of the SCSI spec so we can safely
- * ignore SAVE/RESTORE pointers calls.
- *
- * Unfortunately, some disks violate the SCSI spec and
- * don't issue the required SAVE_POINTERS message before
- * disconnecting, and we have to break spec to remain
- * compatible.
- */
- case SAVE_POINTERS:
- case RESTORE_POINTERS:
- /* Accept message by clearing ACK */
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- break;
- case EXTENDED_MESSAGE:
- /*
- * Start the message buffer with the EXTENDED_MESSAGE
- * byte, since spi_print_msg() wants the whole thing.
- */
- extended_msg[0] = EXTENDED_MESSAGE;
- /* Accept first byte by clearing ACK */
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
-
- spin_unlock_irq(&hostdata->lock);
-
- dsprintk(NDEBUG_EXTENDED, instance, "receiving extended message\n");
-
- len = 2;
- data = extended_msg + 1;
- phase = PHASE_MSGIN;
- NCR5380_transfer_pio(instance, &phase, &len, &data);
- dsprintk(NDEBUG_EXTENDED, instance, "length %d, code 0x%02x\n",
- (int)extended_msg[1],
- (int)extended_msg[2]);
-
- if (!len && extended_msg[1] > 0 &&
- extended_msg[1] <= sizeof(extended_msg) - 2) {
- /* Accept third byte by clearing ACK */
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- len = extended_msg[1] - 1;
- data = extended_msg + 3;
- phase = PHASE_MSGIN;
-
- NCR5380_transfer_pio(instance, &phase, &len, &data);
- dsprintk(NDEBUG_EXTENDED, instance, "message received, residual %d\n",
- len);
-
- switch (extended_msg[2]) {
- case EXTENDED_SDTR:
- case EXTENDED_WDTR:
- case EXTENDED_MODIFY_DATA_POINTER:
- case EXTENDED_EXTENDED_IDENTIFY:
- tmp = 0;
- }
- } else if (len) {
- shost_printk(KERN_ERR, instance, "error receiving extended message\n");
- tmp = 0;
- } else {
- shost_printk(KERN_NOTICE, instance, "extended message code %02x length %d is too long\n",
- extended_msg[2], extended_msg[1]);
- tmp = 0;
- }
-
- spin_lock_irq(&hostdata->lock);
- if (!hostdata->connected)
- return;
-
- /* Fall through to reject message */
-
- /*
- * If we get something weird that we aren't expecting,
- * reject it.
- */
- default:
- if (!tmp) {
- shost_printk(KERN_ERR, instance, "rejecting message ");
- spi_print_msg(extended_msg);
- printk("\n");
- } else if (tmp != EXTENDED_MESSAGE)
- scmd_printk(KERN_INFO, cmd,
- "rejecting unknown message %02x\n",
- tmp);
- else
- scmd_printk(KERN_INFO, cmd,
- "rejecting unknown extended message code %02x, length %d\n",
- extended_msg[1], extended_msg[0]);
-
- msgout = MESSAGE_REJECT;
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_ATN);
- break;
- } /* switch (tmp) */
- break;
- case PHASE_MSGOUT:
- len = 1;
- data = &msgout;
- hostdata->last_message = msgout;
- NCR5380_transfer_pio(instance, &phase, &len, &data);
- if (msgout == ABORT) {
- hostdata->connected = NULL;
- cmd->result = DID_ERROR << 16;
- complete_cmd(instance, cmd);
- maybe_release_dma_irq(instance);
- NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
- return;
- }
- msgout = NOP;
- break;
- case PHASE_CMDOUT:
- len = cmd->cmd_len;
- data = cmd->cmnd;
- /*
- * XXX for performance reasons, on machines with a
- * PSEUDO-DMA architecture we should probably
- * use the dma transfer function.
- */
- NCR5380_transfer_pio(instance, &phase, &len, &data);
- break;
- case PHASE_STATIN:
- len = 1;
- data = &tmp;
- NCR5380_transfer_pio(instance, &phase, &len, &data);
- cmd->SCp.Status = tmp;
- break;
- default:
- shost_printk(KERN_ERR, instance, "unknown phase\n");
- NCR5380_dprint(NDEBUG_ANY, instance);
- } /* switch(phase) */
- } else {
- spin_unlock_irq(&hostdata->lock);
- NCR5380_poll_politely(instance, STATUS_REG, SR_REQ, SR_REQ, HZ);
- spin_lock_irq(&hostdata->lock);
- }
- }
-}
-
-/*
- * Function : void NCR5380_reselect (struct Scsi_Host *instance)
- *
- * Purpose : does reselection, initializing the instance->connected
- * field to point to the scsi_cmnd for which the I_T_L or I_T_L_Q
- * nexus has been reestablished,
- *
- * Inputs : instance - this instance of the NCR5380.
- */
-
-
-/* it might eventually prove necessary to do a dma setup on
- reselection, but it doesn't seem to be needed now -- sam */
-
-static void NCR5380_reselect(struct Scsi_Host *instance)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
- unsigned char target_mask;
- unsigned char lun;
-#ifdef SUPPORT_TAGS
- unsigned char tag;
-#endif
- unsigned char msg[3];
- int __maybe_unused len;
- unsigned char __maybe_unused *data, __maybe_unused phase;
- struct NCR5380_cmd *ncmd;
- struct scsi_cmnd *tmp;
-
- /*
- * Disable arbitration, etc. since the host adapter obviously
- * lost, and tell an interrupted NCR5380_select() to restart.
- */
-
- NCR5380_write(MODE_REG, MR_BASE);
-
- target_mask = NCR5380_read(CURRENT_SCSI_DATA_REG) & ~(hostdata->id_mask);
-
- dsprintk(NDEBUG_RESELECTION, instance, "reselect\n");
-
- /*
- * At this point, we have detected that our SCSI ID is on the bus,
- * SEL is true and BSY was false for at least one bus settle delay
- * (400 ns).
- *
- * We must assert BSY ourselves, until the target drops the SEL
- * signal.
- */
-
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_BSY);
- if (NCR5380_poll_politely(instance,
- STATUS_REG, SR_SEL, 0, 2 * HZ) < 0) {
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- return;
- }
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
-
- /*
- * Wait for target to go into MSGIN.
- */
-
- if (NCR5380_poll_politely(instance,
- STATUS_REG, SR_REQ, SR_REQ, 2 * HZ) < 0) {
- do_abort(instance);
- return;
- }
-
-#if defined(CONFIG_SUN3) && defined(REAL_DMA)
- /* acknowledge toggle to MSGIN */
- NCR5380_write(TARGET_COMMAND_REG, PHASE_SR_TO_TCR(PHASE_MSGIN));
-
- /* peek at the byte without really hitting the bus */
- msg[0] = NCR5380_read(CURRENT_SCSI_DATA_REG);
-#else
- len = 1;
- data = msg;
- phase = PHASE_MSGIN;
- NCR5380_transfer_pio(instance, &phase, &len, &data);
-
- if (len) {
- do_abort(instance);
- return;
- }
-#endif
-
- if (!(msg[0] & 0x80)) {
- shost_printk(KERN_ERR, instance, "expecting IDENTIFY message, got ");
- spi_print_msg(msg);
- printk("\n");
- do_abort(instance);
- return;
- }
- lun = msg[0] & 0x07;
-
-#if defined(SUPPORT_TAGS) && !defined(CONFIG_SUN3)
- /* If the phase is still MSGIN, the target wants to send some more
- * messages. In case it supports tagged queuing, this is probably a
- * SIMPLE_QUEUE_TAG for the I_T_L_Q nexus.
- */
- tag = TAG_NONE;
- if (phase == PHASE_MSGIN && (hostdata->flags & FLAG_TAGGED_QUEUING)) {
- /* Accept previous IDENTIFY message by clearing ACK */
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- len = 2;
- data = msg + 1;
- if (!NCR5380_transfer_pio(instance, &phase, &len, &data) &&
- msg[1] == SIMPLE_QUEUE_TAG)
- tag = msg[2];
- dsprintk(NDEBUG_TAGS, instance, "reselect: target mask %02x, lun %d sent tag %d\n",
- target_mask, lun, tag);
- }
-#endif
-
- /*
- * Find the command corresponding to the I_T_L or I_T_L_Q nexus we
- * just reestablished, and remove it from the disconnected queue.
- */
-
- tmp = NULL;
- list_for_each_entry(ncmd, &hostdata->disconnected, list) {
- struct scsi_cmnd *cmd = NCR5380_to_scmd(ncmd);
-
- if (target_mask == (1 << scmd_id(cmd)) &&
- lun == (u8)cmd->device->lun
-#ifdef SUPPORT_TAGS
- && (tag == cmd->tag)
-#endif
- ) {
- list_del(&ncmd->list);
- tmp = cmd;
- break;
- }
- }
-
- if (tmp) {
- dsprintk(NDEBUG_RESELECTION | NDEBUG_QUEUES, instance,
- "reselect: removed %p from disconnected queue\n", tmp);
- } else {
-
-#ifdef SUPPORT_TAGS
- shost_printk(KERN_ERR, instance, "target bitmask 0x%02x lun %d tag %d not in disconnected queue.\n",
- target_mask, lun, tag);
-#else
- shost_printk(KERN_ERR, instance, "target bitmask 0x%02x lun %d not in disconnected queue.\n",
- target_mask, lun);
-#endif
- /*
- * Since we have an established nexus that we can't do anything
- * with, we must abort it.
- */
- do_abort(instance);
- return;
- }
-
-#if defined(CONFIG_SUN3) && defined(REAL_DMA)
- /* engage dma setup for the command we just saw */
- {
- void *d;
- unsigned long count;
-
- if (!tmp->SCp.this_residual && tmp->SCp.buffers_residual) {
- count = tmp->SCp.buffer->length;
- d = sg_virt(tmp->SCp.buffer);
- } else {
- count = tmp->SCp.this_residual;
- d = tmp->SCp.ptr;
- }
- /* setup this command for dma if not already */
- if ((count >= DMA_MIN_SIZE) && (sun3_dma_setup_done != tmp)) {
- sun3scsi_dma_setup(instance, d, count,
- rq_data_dir(tmp->request));
- sun3_dma_setup_done = tmp;
- }
- }
-
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_ACK);
-#endif
-
- /* Accept message by clearing ACK */
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
-
-#if defined(SUPPORT_TAGS) && defined(CONFIG_SUN3)
- /* If the phase is still MSGIN, the target wants to send some more
- * messages. In case it supports tagged queuing, this is probably a
- * SIMPLE_QUEUE_TAG for the I_T_L_Q nexus.
- */
- tag = TAG_NONE;
- if (phase == PHASE_MSGIN && setup_use_tagged_queuing) {
- /* Accept previous IDENTIFY message by clearing ACK */
- NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- len = 2;
- data = msg + 1;
- if (!NCR5380_transfer_pio(instance, &phase, &len, &data) &&
- msg[1] == SIMPLE_QUEUE_TAG)
- tag = msg[2];
- dsprintk(NDEBUG_TAGS, instance, "reselect: target mask %02x, lun %d sent tag %d\n"
- target_mask, lun, tag);
- }
-#endif
-
- hostdata->connected = tmp;
- dsprintk(NDEBUG_RESELECTION, instance, "nexus established, target %d, lun %llu, tag %d\n",
- scmd_id(tmp), tmp->device->lun, tmp->tag);
-}
-
-
-/**
- * list_find_cmd - test for presence of a command in a linked list
- * @haystack: list of commands
- * @needle: command to search for
- */
-
-static bool list_find_cmd(struct list_head *haystack,
- struct scsi_cmnd *needle)
-{
- struct NCR5380_cmd *ncmd;
-
- list_for_each_entry(ncmd, haystack, list)
- if (NCR5380_to_scmd(ncmd) == needle)
- return true;
- return false;
-}
-
-/**
- * list_remove_cmd - remove a command from linked list
- * @haystack: list of commands
- * @needle: command to remove
- */
-
-static bool list_del_cmd(struct list_head *haystack,
- struct scsi_cmnd *needle)
-{
- if (list_find_cmd(haystack, needle)) {
- struct NCR5380_cmd *ncmd = scsi_cmd_priv(needle);
-
- list_del(&ncmd->list);
- return true;
- }
- return false;
-}
-
-/**
- * NCR5380_abort - scsi host eh_abort_handler() method
- * @cmd: the command to be aborted
- *
- * Try to abort a given command by removing it from queues and/or sending
- * the target an abort message. This may not succeed in causing a target
- * to abort the command. Nonetheless, the low-level driver must forget about
- * the command because the mid-layer reclaims it and it may be re-issued.
- *
- * The normal path taken by a command is as follows. For EH we trace this
- * same path to locate and abort the command.
- *
- * unissued -> selecting -> [unissued -> selecting ->]... connected ->
- * [disconnected -> connected ->]...
- * [autosense -> connected ->] done
- *
- * If cmd was not found at all then presumably it has already been completed,
- * in which case return SUCCESS to try to avoid further EH measures.
- *
- * If the command has not completed yet, we must not fail to find it.
- * We have no option but to forget the aborted command (even if it still
- * lacks sense data). The mid-layer may re-issue a command that is in error
- * recovery (see scsi_send_eh_cmnd), but the logic and data structures in
- * this driver are such that a command can appear on one queue only.
- *
- * The lock protects driver data structures, but EH handlers also use it
- * to serialize their own execution and prevent their own re-entry.
- */
-
-static int NCR5380_abort(struct scsi_cmnd *cmd)
-{
- struct Scsi_Host *instance = cmd->device->host;
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
- unsigned long flags;
- int result = SUCCESS;
-
- spin_lock_irqsave(&hostdata->lock, flags);
-
-#if (NDEBUG & NDEBUG_ANY)
- scmd_printk(KERN_INFO, cmd, __func__);
-#endif
- NCR5380_dprint(NDEBUG_ANY, instance);
- NCR5380_dprint_phase(NDEBUG_ANY, instance);
-
- if (list_del_cmd(&hostdata->unissued, cmd)) {
- dsprintk(NDEBUG_ABORT, instance,
- "abort: removed %p from issue queue\n", cmd);
- cmd->result = DID_ABORT << 16;
- cmd->scsi_done(cmd); /* No tag or busy flag to worry about */
- goto out;
- }
-
- if (hostdata->selecting == cmd) {
- dsprintk(NDEBUG_ABORT, instance,
- "abort: cmd %p == selecting\n", cmd);
- hostdata->selecting = NULL;
- cmd->result = DID_ABORT << 16;
- complete_cmd(instance, cmd);
- goto out;
- }
-
- if (list_del_cmd(&hostdata->disconnected, cmd)) {
- dsprintk(NDEBUG_ABORT, instance,
- "abort: removed %p from disconnected list\n", cmd);
- /* Can't call NCR5380_select() and send ABORT because that
- * means releasing the lock. Need a bus reset.
- */
- set_host_byte(cmd, DID_ERROR);
- complete_cmd(instance, cmd);
- result = FAILED;
- goto out;
- }
-
- if (hostdata->connected == cmd) {
- dsprintk(NDEBUG_ABORT, instance, "abort: cmd %p is connected\n", cmd);
- hostdata->connected = NULL;
-#ifdef REAL_DMA
- hostdata->dma_len = 0;
-#endif
- if (do_abort(instance)) {
- set_host_byte(cmd, DID_ERROR);
- complete_cmd(instance, cmd);
- result = FAILED;
- goto out;
- }
- set_host_byte(cmd, DID_ABORT);
- complete_cmd(instance, cmd);
- goto out;
- }
-
- if (list_del_cmd(&hostdata->autosense, cmd)) {
- dsprintk(NDEBUG_ABORT, instance,
- "abort: removed %p from sense queue\n", cmd);
- set_host_byte(cmd, DID_ERROR);
- complete_cmd(instance, cmd);
- }
-
-out:
- if (result == FAILED)
- dsprintk(NDEBUG_ABORT, instance, "abort: failed to abort %p\n", cmd);
- else
- dsprintk(NDEBUG_ABORT, instance, "abort: successfully aborted %p\n", cmd);
-
- queue_work(hostdata->work_q, &hostdata->main_task);
- maybe_release_dma_irq(instance);
- spin_unlock_irqrestore(&hostdata->lock, flags);
-
- return result;
-}
-
-
-/**
- * NCR5380_bus_reset - reset the SCSI bus
- * @cmd: SCSI command undergoing EH
- *
- * Returns SUCCESS
- */
-
-static int NCR5380_bus_reset(struct scsi_cmnd *cmd)
-{
- struct Scsi_Host *instance = cmd->device->host;
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
- int i;
- unsigned long flags;
- struct NCR5380_cmd *ncmd;
-
- spin_lock_irqsave(&hostdata->lock, flags);
-
-#if (NDEBUG & NDEBUG_ANY)
- scmd_printk(KERN_INFO, cmd, __func__);
-#endif
- NCR5380_dprint(NDEBUG_ANY, instance);
- NCR5380_dprint_phase(NDEBUG_ANY, instance);
-
- do_reset(instance);
-
- /* reset NCR registers */
- NCR5380_write(MODE_REG, MR_BASE);
- NCR5380_write(TARGET_COMMAND_REG, 0);
- NCR5380_write(SELECT_ENABLE_REG, 0);
-
- /* After the reset, there are no more connected or disconnected commands
- * and no busy units; so clear the low-level status here to avoid
- * conflicts when the mid-level code tries to wake up the affected
- * commands!
- */
-
- if (list_del_cmd(&hostdata->unissued, cmd)) {
- cmd->result = DID_RESET << 16;
- cmd->scsi_done(cmd);
- }
-
- if (hostdata->selecting) {
- hostdata->selecting->result = DID_RESET << 16;
- complete_cmd(instance, hostdata->selecting);
- hostdata->selecting = NULL;
- }
-
- list_for_each_entry(ncmd, &hostdata->disconnected, list) {
- struct scsi_cmnd *cmd = NCR5380_to_scmd(ncmd);
-
- set_host_byte(cmd, DID_RESET);
- cmd->scsi_done(cmd);
- }
- INIT_LIST_HEAD(&hostdata->disconnected);
-
- list_for_each_entry(ncmd, &hostdata->autosense, list) {
- struct scsi_cmnd *cmd = NCR5380_to_scmd(ncmd);
-
- set_host_byte(cmd, DID_RESET);
- cmd->scsi_done(cmd);
- }
- INIT_LIST_HEAD(&hostdata->autosense);
-
- if (hostdata->connected) {
- set_host_byte(hostdata->connected, DID_RESET);
- complete_cmd(instance, hostdata->connected);
- hostdata->connected = NULL;
- }
-
-#ifdef SUPPORT_TAGS
- free_all_tags(hostdata);
-#endif
- for (i = 0; i < 8; ++i)
- hostdata->busy[i] = 0;
-#ifdef REAL_DMA
- hostdata->dma_len = 0;
-#endif
-
- queue_work(hostdata->work_q, &hostdata->main_task);
- maybe_release_dma_irq(instance);
- spin_unlock_irqrestore(&hostdata->lock, flags);
-
- return SUCCESS;
-}
diff --git a/drivers/scsi/atari_scsi.c b/drivers/scsi/atari_scsi.c
index 78d1b2963f2c..a59ad94ea52b 100644
--- a/drivers/scsi/atari_scsi.c
+++ b/drivers/scsi/atari_scsi.c
@@ -14,55 +14,23 @@
*
*/
-
-/**************************************************************************/
-/* */
-/* Notes for Falcon SCSI: */
-/* ---------------------- */
-/* */
-/* Since the Falcon SCSI uses the ST-DMA chip, that is shared among */
-/* several device drivers, locking and unlocking the access to this */
-/* chip is required. But locking is not possible from an interrupt, */
-/* since it puts the process to sleep if the lock is not available. */
-/* This prevents "late" locking of the DMA chip, i.e. locking it just */
-/* before using it, since in case of disconnection-reconnection */
-/* commands, the DMA is started from the reselection interrupt. */
-/* */
-/* Two possible schemes for ST-DMA-locking would be: */
-/* 1) The lock is taken for each command separately and disconnecting */
-/* is forbidden (i.e. can_queue = 1). */
-/* 2) The DMA chip is locked when the first command comes in and */
-/* released when the last command is finished and all queues are */
-/* empty. */
-/* The first alternative would result in bad performance, since the */
-/* interleaving of commands would not be used. The second is unfair to */
-/* other drivers using the ST-DMA, because the queues will seldom be */
-/* totally empty if there is a lot of disk traffic. */
-/* */
-/* For this reasons I decided to employ a more elaborate scheme: */
-/* - First, we give up the lock every time we can (for fairness), this */
-/* means every time a command finishes and there are no other commands */
-/* on the disconnected queue. */
-/* - If there are others waiting to lock the DMA chip, we stop */
-/* issuing commands, i.e. moving them onto the issue queue. */
-/* Because of that, the disconnected queue will run empty in a */
-/* while. Instead we go to sleep on a 'fairness_queue'. */
-/* - If the lock is released, all processes waiting on the fairness */
-/* queue will be woken. The first of them tries to re-lock the DMA, */
-/* the others wait for the first to finish this task. After that, */
-/* they can all run on and do their commands... */
-/* This sounds complicated (and it is it :-(), but it seems to be a */
-/* good compromise between fairness and performance: As long as no one */
-/* else wants to work with the ST-DMA chip, SCSI can go along as */
-/* usual. If now someone else comes, this behaviour is changed to a */
-/* "fairness mode": just already initiated commands are finished and */
-/* then the lock is released. The other one waiting will probably win */
-/* the race for locking the DMA, since it was waiting for longer. And */
-/* after it has finished, SCSI can go ahead again. Finally: I hope I */
-/* have not produced any deadlock possibilities! */
-/* */
-/**************************************************************************/
-
+/*
+ * Notes for Falcon SCSI DMA
+ *
+ * The 5380 device is one of several that all share the DMA chip. Hence
+ * "locking" and "unlocking" access to this chip is required.
+ *
+ * Two possible schemes for ST DMA acquisition by atari_scsi are:
+ * 1) The lock is taken for each command separately (i.e. can_queue == 1).
+ * 2) The lock is taken when the first command arrives and released
+ * when the last command is finished (i.e. can_queue > 1).
+ *
+ * The first alternative limits SCSI bus utilization, since interleaving
+ * commands is not possible. The second gives better performance but is
+ * unfair to other drivers needing to use the ST DMA chip. In order to
+ * allow the IDE and floppy drivers equal access to the ST DMA chip
+ * the default is can_queue == 1.
+ */
#include <linux/module.h>
#include <linux/types.h>
@@ -83,13 +51,10 @@
#include <scsi/scsi_host.h>
-/* Definitions for the core NCR5380 driver. */
-
-#define REAL_DMA
-#define SUPPORT_TAGS
-#define MAX_TAGS 32
#define DMA_MIN_SIZE 32
+/* Definitions for the core NCR5380 driver. */
+
#define NCR5380_implementation_fields /* none */
#define NCR5380_read(reg) atari_scsi_reg_read(reg)
@@ -99,9 +64,9 @@
#define NCR5380_abort atari_scsi_abort
#define NCR5380_info atari_scsi_info
-#define NCR5380_dma_read_setup(instance, data, count) \
+#define NCR5380_dma_recv_setup(instance, data, count) \
atari_scsi_dma_setup(instance, data, count, 0)
-#define NCR5380_dma_write_setup(instance, data, count) \
+#define NCR5380_dma_send_setup(instance, data, count) \
atari_scsi_dma_setup(instance, data, count, 1)
#define NCR5380_dma_residual(instance) \
atari_scsi_dma_residual(instance)
@@ -159,14 +124,11 @@ static inline unsigned long SCSI_DMA_GETADR(void)
return adr;
}
-#ifdef REAL_DMA
static void atari_scsi_fetch_restbytes(void);
-#endif
static unsigned char (*atari_scsi_reg_read)(unsigned char reg);
static void (*atari_scsi_reg_write)(unsigned char reg, unsigned char value);
-#ifdef REAL_DMA
static unsigned long atari_dma_residual, atari_dma_startaddr;
static short atari_dma_active;
/* pointer to the dribble buffer */
@@ -185,7 +147,6 @@ static char *atari_dma_orig_addr;
/* mask for address bits that can't be used with the ST-DMA */
static unsigned long atari_dma_stram_mask;
#define STRAM_ADDR(a) (((a) & atari_dma_stram_mask) == 0)
-#endif
static int setup_can_queue = -1;
module_param(setup_can_queue, int, 0);
@@ -193,16 +154,12 @@ static int setup_cmd_per_lun = -1;
module_param(setup_cmd_per_lun, int, 0);
static int setup_sg_tablesize = -1;
module_param(setup_sg_tablesize, int, 0);
-static int setup_use_tagged_queuing = -1;
-module_param(setup_use_tagged_queuing, int, 0);
static int setup_hostid = -1;
module_param(setup_hostid, int, 0);
static int setup_toshiba_delay = -1;
module_param(setup_toshiba_delay, int, 0);
-#if defined(REAL_DMA)
-
static int scsi_dma_is_ignored_buserr(unsigned char dma_stat)
{
int i;
@@ -255,12 +212,9 @@ static void scsi_dma_buserr(int irq, void *dummy)
}
#endif
-#endif
-
static irqreturn_t scsi_tt_intr(int irq, void *dev)
{
-#ifdef REAL_DMA
struct Scsi_Host *instance = dev;
struct NCR5380_hostdata *hostdata = shost_priv(instance);
int dma_stat;
@@ -342,8 +296,6 @@ static irqreturn_t scsi_tt_intr(int irq, void *dev)
tt_scsi_dma.dma_ctrl = 0;
}
-#endif /* REAL_DMA */
-
NCR5380_intr(irq, dev);
return IRQ_HANDLED;
@@ -352,7 +304,6 @@ static irqreturn_t scsi_tt_intr(int irq, void *dev)
static irqreturn_t scsi_falcon_intr(int irq, void *dev)
{
-#ifdef REAL_DMA
struct Scsi_Host *instance = dev;
struct NCR5380_hostdata *hostdata = shost_priv(instance);
int dma_stat;
@@ -405,15 +356,12 @@ static irqreturn_t scsi_falcon_intr(int irq, void *dev)
atari_dma_orig_addr = NULL;
}
-#endif /* REAL_DMA */
-
NCR5380_intr(irq, dev);
return IRQ_HANDLED;
}
-#ifdef REAL_DMA
static void atari_scsi_fetch_restbytes(void)
{
int nr;
@@ -436,7 +384,6 @@ static void atari_scsi_fetch_restbytes(void)
*dst++ = *src++;
}
}
-#endif /* REAL_DMA */
/* This function releases the lock on the DMA chip if there is no
@@ -464,6 +411,10 @@ static int falcon_get_lock(struct Scsi_Host *instance)
if (IS_A_TT())
return 1;
+ if (stdma_is_locked_by(scsi_falcon_intr) &&
+ instance->hostt->can_queue > 1)
+ return 1;
+
if (in_interrupt())
return stdma_try_lock(scsi_falcon_intr, instance);
@@ -495,8 +446,7 @@ static int __init atari_scsi_setup(char *str)
setup_sg_tablesize = ints[3];
if (ints[0] >= 4)
setup_hostid = ints[4];
- if (ints[0] >= 5)
- setup_use_tagged_queuing = ints[5];
+ /* ints[5] (use_tagged_queuing) is ignored */
/* ints[6] (use_pdma) is ignored */
if (ints[0] >= 7)
setup_toshiba_delay = ints[7];
@@ -508,8 +458,6 @@ __setup("atascsi=", atari_scsi_setup);
#endif /* !MODULE */
-#if defined(REAL_DMA)
-
static unsigned long atari_scsi_dma_setup(struct Scsi_Host *instance,
void *data, unsigned long count,
int dir)
@@ -545,9 +493,6 @@ static unsigned long atari_scsi_dma_setup(struct Scsi_Host *instance,
*/
dma_cache_maintenance(addr, count, dir);
- if (count == 0)
- printk(KERN_NOTICE "SCSI warning: DMA programmed for 0 bytes !\n");
-
if (IS_A_TT()) {
tt_scsi_dma.dma_ctrl = dir;
SCSI_DMA_WRITE_P(dma_addr, addr);
@@ -624,6 +569,9 @@ static unsigned long atari_dma_xfer_len(unsigned long wanted_len,
{
unsigned long possible_len, limit;
+ if (wanted_len < DMA_MIN_SIZE)
+ return 0;
+
if (IS_A_TT())
/* TT SCSI DMA can transfer arbitrary #bytes */
return wanted_len;
@@ -703,9 +651,6 @@ static unsigned long atari_dma_xfer_len(unsigned long wanted_len,
}
-#endif /* REAL_DMA */
-
-
/* NCR5380 register access functions
*
* There are separate functions for TT and Falcon, because the access
@@ -736,7 +681,7 @@ static void atari_scsi_falcon_reg_write(unsigned char reg, unsigned char value)
}
-#include "atari_NCR5380.c"
+#include "NCR5380.c"
static int atari_scsi_bus_reset(struct scsi_cmnd *cmd)
{
@@ -745,7 +690,6 @@ static int atari_scsi_bus_reset(struct scsi_cmnd *cmd)
local_irq_save(flags);
-#ifdef REAL_DMA
/* Abort a maybe active DMA transfer */
if (IS_A_TT()) {
tt_scsi_dma.dma_ctrl = 0;
@@ -754,7 +698,6 @@ static int atari_scsi_bus_reset(struct scsi_cmnd *cmd)
atari_dma_active = 0;
atari_dma_orig_addr = NULL;
}
-#endif
rv = NCR5380_bus_reset(cmd);
@@ -781,6 +724,7 @@ static struct scsi_host_template atari_scsi_template = {
.eh_abort_handler = atari_scsi_abort,
.eh_bus_reset_handler = atari_scsi_bus_reset,
.this_id = 7,
+ .cmd_per_lun = 2,
.use_clustering = DISABLE_CLUSTERING,
.cmd_size = NCR5380_CMD_SIZE,
};
@@ -804,24 +748,11 @@ static int __init atari_scsi_probe(struct platform_device *pdev)
atari_scsi_reg_write = atari_scsi_falcon_reg_write;
}
- /* The values for CMD_PER_LUN and CAN_QUEUE are somehow arbitrary.
- * Higher values should work, too; try it!
- * (But cmd_per_lun costs memory!)
- *
- * But there seems to be a bug somewhere that requires CAN_QUEUE to be
- * 2*CMD_PER_LUN. At least on a TT, no spurious timeouts seen since
- * changed CMD_PER_LUN...
- *
- * Note: The Falcon currently uses 8/1 setting due to unsolved problems
- * with cmd_per_lun != 1
- */
if (ATARIHW_PRESENT(TT_SCSI)) {
atari_scsi_template.can_queue = 16;
- atari_scsi_template.cmd_per_lun = 8;
atari_scsi_template.sg_tablesize = SG_ALL;
} else {
- atari_scsi_template.can_queue = 8;
- atari_scsi_template.cmd_per_lun = 1;
+ atari_scsi_template.can_queue = 1;
atari_scsi_template.sg_tablesize = SG_NONE;
}
@@ -850,8 +781,6 @@ static int __init atari_scsi_probe(struct platform_device *pdev)
}
}
-
-#ifdef REAL_DMA
/* If running on a Falcon and if there's TT-Ram (i.e., more than one
* memory block, since there's always ST-Ram in a Falcon), then
* allocate a STRAM_BUFFER_SIZE byte dribble buffer for transfers
@@ -867,7 +796,6 @@ static int __init atari_scsi_probe(struct platform_device *pdev)
atari_dma_phys_buffer = atari_stram_to_phys(atari_dma_buffer);
atari_dma_orig_addr = 0;
}
-#endif
instance = scsi_host_alloc(&atari_scsi_template,
sizeof(struct NCR5380_hostdata));
@@ -879,9 +807,6 @@ static int __init atari_scsi_probe(struct platform_device *pdev)
instance->irq = irq->start;
host_flags |= IS_A_TT() ? 0 : FLAG_LATE_DMA_SETUP;
-#ifdef SUPPORT_TAGS
- host_flags |= setup_use_tagged_queuing > 0 ? FLAG_TAGGED_QUEUING : 0;
-#endif
host_flags |= setup_toshiba_delay > 0 ? FLAG_TOSHIBA_DELAY : 0;
error = NCR5380_init(instance, host_flags);
@@ -897,7 +822,7 @@ static int __init atari_scsi_probe(struct platform_device *pdev)
goto fail_irq;
}
tt_mfp.active_edge |= 0x80; /* SCSI int on L->H */
-#ifdef REAL_DMA
+
tt_scsi_dma.dma_ctrl = 0;
atari_dma_residual = 0;
@@ -919,17 +844,14 @@ static int __init atari_scsi_probe(struct platform_device *pdev)
hostdata->read_overruns = 4;
}
-#endif
} else {
/* Nothing to do for the interrupt: the ST-DMA is initialized
* already.
*/
-#ifdef REAL_DMA
atari_dma_residual = 0;
atari_dma_active = 0;
atari_dma_stram_mask = (ATARIHW_PRESENT(EXTD_DMA) ? 0x00000000
: 0xff000000);
-#endif
}
NCR5380_maybe_reset_bus(instance);
diff --git a/drivers/scsi/bfa/bfa_fcs.h b/drivers/scsi/bfa/bfa_fcs.h
index 06dc215ea050..0f797a55d504 100644
--- a/drivers/scsi/bfa/bfa_fcs.h
+++ b/drivers/scsi/bfa/bfa_fcs.h
@@ -874,8 +874,8 @@ bfa_status_t bfa_fcb_rport_alloc(struct bfad_s *bfad,
/*
* itnim callbacks
*/
-void bfa_fcb_itnim_alloc(struct bfad_s *bfad, struct bfa_fcs_itnim_s **itnim,
- struct bfad_itnim_s **itnim_drv);
+int bfa_fcb_itnim_alloc(struct bfad_s *bfad, struct bfa_fcs_itnim_s **itnim,
+ struct bfad_itnim_s **itnim_drv);
void bfa_fcb_itnim_free(struct bfad_s *bfad,
struct bfad_itnim_s *itnim_drv);
void bfa_fcb_itnim_online(struct bfad_itnim_s *itnim_drv);
diff --git a/drivers/scsi/bfa/bfa_fcs_fcpim.c b/drivers/scsi/bfa/bfa_fcs_fcpim.c
index 4f089d76afb1..2e3b19e7e079 100644
--- a/drivers/scsi/bfa/bfa_fcs_fcpim.c
+++ b/drivers/scsi/bfa/bfa_fcs_fcpim.c
@@ -588,12 +588,13 @@ bfa_fcs_itnim_create(struct bfa_fcs_rport_s *rport)
struct bfa_fcs_lport_s *port = rport->port;
struct bfa_fcs_itnim_s *itnim;
struct bfad_itnim_s *itnim_drv;
+ int ret;
/*
* call bfad to allocate the itnim
*/
- bfa_fcb_itnim_alloc(port->fcs->bfad, &itnim, &itnim_drv);
- if (itnim == NULL) {
+ ret = bfa_fcb_itnim_alloc(port->fcs->bfad, &itnim, &itnim_drv);
+ if (ret) {
bfa_trc(port->fcs, rport->pwwn);
return NULL;
}
diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c
index 6c805e13f8dd..02d806012fa1 100644
--- a/drivers/scsi/bfa/bfad_im.c
+++ b/drivers/scsi/bfa/bfad_im.c
@@ -440,13 +440,13 @@ bfad_im_slave_destroy(struct scsi_device *sdev)
* BFA FCS itnim alloc callback, after successful PRLI
* Context: Interrupt
*/
-void
+int
bfa_fcb_itnim_alloc(struct bfad_s *bfad, struct bfa_fcs_itnim_s **itnim,
struct bfad_itnim_s **itnim_drv)
{
*itnim_drv = kzalloc(sizeof(struct bfad_itnim_s), GFP_ATOMIC);
if (*itnim_drv == NULL)
- return;
+ return -ENOMEM;
(*itnim_drv)->im = bfad->im;
*itnim = &(*itnim_drv)->fcs_itnim;
@@ -457,6 +457,7 @@ bfa_fcb_itnim_alloc(struct bfad_s *bfad, struct bfa_fcs_itnim_s **itnim,
*/
INIT_WORK(&(*itnim_drv)->itnim_work, bfad_im_itnim_work_handler);
bfad->bfad_flags |= BFAD_RPORT_ONLINE;
+ return 0;
}
/*
diff --git a/drivers/scsi/bnx2fc/bnx2fc.h b/drivers/scsi/bnx2fc/bnx2fc.h
index 499e369eabf0..fdd4eb4e41b2 100644
--- a/drivers/scsi/bnx2fc/bnx2fc.h
+++ b/drivers/scsi/bnx2fc/bnx2fc.h
@@ -65,7 +65,7 @@
#include "bnx2fc_constants.h"
#define BNX2FC_NAME "bnx2fc"
-#define BNX2FC_VERSION "2.9.6"
+#define BNX2FC_VERSION "2.10.3"
#define PFX "bnx2fc: "
@@ -261,6 +261,7 @@ struct bnx2fc_interface {
u8 vlan_enabled;
int vlan_id;
bool enabled;
+ u8 tm_timeout;
};
#define bnx2fc_from_ctlr(x) \
diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
index d7029ea5d319..a1881993982c 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
@@ -107,6 +107,26 @@ MODULE_PARM_DESC(debug_logging,
"\t\t0x10 - fcoe L2 fame related logs.\n"
"\t\t0xff - LOG all messages.");
+uint bnx2fc_devloss_tmo;
+module_param_named(devloss_tmo, bnx2fc_devloss_tmo, uint, S_IRUGO);
+MODULE_PARM_DESC(devloss_tmo, " Change devloss_tmo for the remote ports "
+ "attached via bnx2fc.");
+
+uint bnx2fc_max_luns = BNX2FC_MAX_LUN;
+module_param_named(max_luns, bnx2fc_max_luns, uint, S_IRUGO);
+MODULE_PARM_DESC(max_luns, " Change the default max_lun per SCSI host. Default "
+ "0xffff.");
+
+uint bnx2fc_queue_depth;
+module_param_named(queue_depth, bnx2fc_queue_depth, uint, S_IRUGO);
+MODULE_PARM_DESC(queue_depth, " Change the default queue depth of SCSI devices "
+ "attached via bnx2fc.");
+
+uint bnx2fc_log_fka;
+module_param_named(log_fka, bnx2fc_log_fka, uint, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(log_fka, " Print message to kernel log when fcoe is "
+ "initiating a FIP keep alive when debug logging is enabled.");
+
static int bnx2fc_cpu_callback(struct notifier_block *nfb,
unsigned long action, void *hcpu);
/* notification function for CPU hotplug events */
@@ -692,7 +712,7 @@ static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev)
int rc = 0;
shost->max_cmd_len = BNX2FC_MAX_CMD_LEN;
- shost->max_lun = BNX2FC_MAX_LUN;
+ shost->max_lun = bnx2fc_max_luns;
shost->max_id = BNX2FC_MAX_FCP_TGT;
shost->max_channel = 0;
if (lport->vport)
@@ -1061,6 +1081,20 @@ static u8 *bnx2fc_get_src_mac(struct fc_lport *lport)
*/
static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
{
+ struct fip_header *fiph;
+ struct ethhdr *eth_hdr;
+ u16 op;
+ u8 sub;
+
+ fiph = (struct fip_header *) ((void *)skb->data + 2 * ETH_ALEN + 2);
+ eth_hdr = (struct ethhdr *)skb_mac_header(skb);
+ op = ntohs(fiph->fip_op);
+ sub = fiph->fip_subcode;
+
+ if (op == FIP_OP_CTRL && sub == FIP_SC_SOL && bnx2fc_log_fka)
+ BNX2FC_MISC_DBG("Sending FKA from %pM to %pM.\n",
+ eth_hdr->h_source, eth_hdr->h_dest);
+
skb->dev = bnx2fc_from_ctlr(fip)->netdev;
dev_queue_xmit(skb);
}
@@ -1102,6 +1136,9 @@ static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled)
return -EIO;
}
+ if (bnx2fc_devloss_tmo)
+ fc_host_dev_loss_tmo(vn_port->host) = bnx2fc_devloss_tmo;
+
if (disabled) {
fc_vport_set_state(vport, FC_VPORT_DISABLED);
} else {
@@ -1495,6 +1532,9 @@ static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
}
fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
+ if (bnx2fc_devloss_tmo)
+ fc_host_dev_loss_tmo(shost) = bnx2fc_devloss_tmo;
+
/* Allocate exchange manager */
if (!npiv)
rc = bnx2fc_em_config(lport, hba);
@@ -1999,6 +2039,8 @@ static void bnx2fc_ulp_init(struct cnic_dev *dev)
return;
}
+ pr_info(PFX "FCoE initialized for %s.\n", dev->netdev->name);
+
/* Add HBA to the adapter list */
mutex_lock(&bnx2fc_dev_lock);
list_add_tail(&hba->list, &adapter_list);
@@ -2293,6 +2335,7 @@ static int _bnx2fc_create(struct net_device *netdev,
ctlr = bnx2fc_to_ctlr(interface);
cdev = fcoe_ctlr_to_ctlr_dev(ctlr);
interface->vlan_id = vlan_id;
+ interface->tm_timeout = BNX2FC_TM_TIMEOUT;
interface->timer_work_queue =
create_singlethread_workqueue("bnx2fc_timer_wq");
@@ -2612,6 +2655,15 @@ static int bnx2fc_cpu_callback(struct notifier_block *nfb,
return NOTIFY_OK;
}
+static int bnx2fc_slave_configure(struct scsi_device *sdev)
+{
+ if (!bnx2fc_queue_depth)
+ return 0;
+
+ scsi_change_queue_depth(sdev, bnx2fc_queue_depth);
+ return 0;
+}
+
/**
* bnx2fc_mod_init - module init entry point
*
@@ -2858,6 +2910,50 @@ static struct fc_function_template bnx2fc_vport_xport_function = {
.bsg_request = fc_lport_bsg_request,
};
+/*
+ * Additional scsi_host attributes.
+ */
+static ssize_t
+bnx2fc_tm_timeout_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct fc_lport *lport = shost_priv(shost);
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_interface *interface = port->priv;
+
+ sprintf(buf, "%u\n", interface->tm_timeout);
+ return strlen(buf);
+}
+
+static ssize_t
+bnx2fc_tm_timeout_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct fc_lport *lport = shost_priv(shost);
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_interface *interface = port->priv;
+ int rval, val;
+
+ rval = kstrtouint(buf, 10, &val);
+ if (rval)
+ return rval;
+ if (val > 255)
+ return -ERANGE;
+
+ interface->tm_timeout = (u8)val;
+ return strlen(buf);
+}
+
+static DEVICE_ATTR(tm_timeout, S_IRUGO|S_IWUSR, bnx2fc_tm_timeout_show,
+ bnx2fc_tm_timeout_store);
+
+static struct device_attribute *bnx2fc_host_attrs[] = {
+ &dev_attr_tm_timeout,
+ NULL,
+};
+
/**
* scsi_host_template structure used while registering with SCSI-ml
*/
@@ -2877,6 +2973,8 @@ static struct scsi_host_template bnx2fc_shost_template = {
.sg_tablesize = BNX2FC_MAX_BDS_PER_CMD,
.max_sectors = 1024,
.track_queue_depth = 1,
+ .slave_configure = bnx2fc_slave_configure,
+ .shost_attrs = bnx2fc_host_attrs,
};
static struct libfc_function_template bnx2fc_libfc_fcn_templ = {
diff --git a/drivers/scsi/bnx2fc/bnx2fc_io.c b/drivers/scsi/bnx2fc/bnx2fc_io.c
index 2230dab67ca5..026f394a3851 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_io.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_io.c
@@ -179,12 +179,24 @@ static void bnx2fc_scsi_done(struct bnx2fc_cmd *io_req, int err_code)
bnx2fc_unmap_sg_list(io_req);
io_req->sc_cmd = NULL;
+
+ /* Sanity checks before returning command to mid-layer */
if (!sc_cmd) {
printk(KERN_ERR PFX "scsi_done - sc_cmd NULL. "
"IO(0x%x) already cleaned up\n",
io_req->xid);
return;
}
+ if (!sc_cmd->device) {
+ pr_err(PFX "0x%x: sc_cmd->device is NULL.\n", io_req->xid);
+ return;
+ }
+ if (!sc_cmd->device->host) {
+ pr_err(PFX "0x%x: sc_cmd->device->host is NULL.\n",
+ io_req->xid);
+ return;
+ }
+
sc_cmd->result = err_code << 16;
BNX2FC_IO_DBG(io_req, "sc=%p, result=0x%x, retries=%d, allowed=%d\n",
@@ -770,7 +782,7 @@ retry_tmf:
spin_unlock_bh(&tgt->tgt_lock);
rc = wait_for_completion_timeout(&io_req->tm_done,
- BNX2FC_TM_TIMEOUT * HZ);
+ interface->tm_timeout * HZ);
spin_lock_bh(&tgt->tgt_lock);
io_req->wait_for_comp = 0;
diff --git a/drivers/scsi/bnx2i/bnx2i_iscsi.c b/drivers/scsi/bnx2i/bnx2i_iscsi.c
index 72894378ffcf..133901fd3e35 100644
--- a/drivers/scsi/bnx2i/bnx2i_iscsi.c
+++ b/drivers/scsi/bnx2i/bnx2i_iscsi.c
@@ -675,7 +675,7 @@ bnx2i_find_ep_in_ofld_list(struct bnx2i_hba *hba, u32 iscsi_cid)
{
struct list_head *list;
struct list_head *tmp;
- struct bnx2i_endpoint *ep;
+ struct bnx2i_endpoint *ep = NULL;
read_lock_bh(&hba->ep_rdwr_lock);
list_for_each_safe(list, tmp, &hba->ep_ofld_list) {
@@ -703,7 +703,7 @@ bnx2i_find_ep_in_destroy_list(struct bnx2i_hba *hba, u32 iscsi_cid)
{
struct list_head *list;
struct list_head *tmp;
- struct bnx2i_endpoint *ep;
+ struct bnx2i_endpoint *ep = NULL;
read_lock_bh(&hba->ep_rdwr_lock);
list_for_each_safe(list, tmp, &hba->ep_destroy_list) {
diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c
index fa09d4be2b53..83458f7a2824 100644
--- a/drivers/scsi/constants.c
+++ b/drivers/scsi/constants.c
@@ -292,850 +292,30 @@ bool scsi_opcode_sa_name(int opcode, int service_action,
struct error_info {
unsigned short code12; /* 0x0302 looks better than 0x03,0x02 */
- const char * text;
+ unsigned short size;
};
/*
- * The canonical list of T10 Additional Sense Codes is available at:
- * http://www.t10.org/lists/asc-num.txt [most recent: 20141221]
+ * There are 700+ entries in this table. To save space, we don't store
+ * (code, pointer) pairs, which would make sizeof(struct
+ * error_info)==16 on 64 bits. Rather, the second element just stores
+ * the size (including \0) of the corresponding string, and we use the
+ * sum of these to get the appropriate offset into additional_text
+ * defined below. This approach saves 12 bytes per entry.
*/
-
static const struct error_info additional[] =
{
- {0x0000, "No additional sense information"},
- {0x0001, "Filemark detected"},
- {0x0002, "End-of-partition/medium detected"},
- {0x0003, "Setmark detected"},
- {0x0004, "Beginning-of-partition/medium detected"},
- {0x0005, "End-of-data detected"},
- {0x0006, "I/O process terminated"},
- {0x0007, "Programmable early warning detected"},
- {0x0011, "Audio play operation in progress"},
- {0x0012, "Audio play operation paused"},
- {0x0013, "Audio play operation successfully completed"},
- {0x0014, "Audio play operation stopped due to error"},
- {0x0015, "No current audio status to return"},
- {0x0016, "Operation in progress"},
- {0x0017, "Cleaning requested"},
- {0x0018, "Erase operation in progress"},
- {0x0019, "Locate operation in progress"},
- {0x001A, "Rewind operation in progress"},
- {0x001B, "Set capacity operation in progress"},
- {0x001C, "Verify operation in progress"},
- {0x001D, "ATA pass through information available"},
- {0x001E, "Conflicting SA creation request"},
- {0x001F, "Logical unit transitioning to another power condition"},
- {0x0020, "Extended copy information available"},
- {0x0021, "Atomic command aborted due to ACA"},
-
- {0x0100, "No index/sector signal"},
-
- {0x0200, "No seek complete"},
-
- {0x0300, "Peripheral device write fault"},
- {0x0301, "No write current"},
- {0x0302, "Excessive write errors"},
-
- {0x0400, "Logical unit not ready, cause not reportable"},
- {0x0401, "Logical unit is in process of becoming ready"},
- {0x0402, "Logical unit not ready, initializing command required"},
- {0x0403, "Logical unit not ready, manual intervention required"},
- {0x0404, "Logical unit not ready, format in progress"},
- {0x0405, "Logical unit not ready, rebuild in progress"},
- {0x0406, "Logical unit not ready, recalculation in progress"},
- {0x0407, "Logical unit not ready, operation in progress"},
- {0x0408, "Logical unit not ready, long write in progress"},
- {0x0409, "Logical unit not ready, self-test in progress"},
- {0x040A, "Logical unit not accessible, asymmetric access state "
- "transition"},
- {0x040B, "Logical unit not accessible, target port in standby state"},
- {0x040C, "Logical unit not accessible, target port in unavailable "
- "state"},
- {0x040D, "Logical unit not ready, structure check required"},
- {0x040E, "Logical unit not ready, security session in progress"},
- {0x0410, "Logical unit not ready, auxiliary memory not accessible"},
- {0x0411, "Logical unit not ready, notify (enable spinup) required"},
- {0x0412, "Logical unit not ready, offline"},
- {0x0413, "Logical unit not ready, SA creation in progress"},
- {0x0414, "Logical unit not ready, space allocation in progress"},
- {0x0415, "Logical unit not ready, robotics disabled"},
- {0x0416, "Logical unit not ready, configuration required"},
- {0x0417, "Logical unit not ready, calibration required"},
- {0x0418, "Logical unit not ready, a door is open"},
- {0x0419, "Logical unit not ready, operating in sequential mode"},
- {0x041A, "Logical unit not ready, start stop unit command in "
- "progress"},
- {0x041B, "Logical unit not ready, sanitize in progress"},
- {0x041C, "Logical unit not ready, additional power use not yet "
- "granted"},
- {0x041D, "Logical unit not ready, configuration in progress"},
- {0x041E, "Logical unit not ready, microcode activation required"},
- {0x041F, "Logical unit not ready, microcode download required"},
- {0x0420, "Logical unit not ready, logical unit reset required"},
- {0x0421, "Logical unit not ready, hard reset required"},
- {0x0422, "Logical unit not ready, power cycle required"},
-
- {0x0500, "Logical unit does not respond to selection"},
-
- {0x0600, "No reference position found"},
-
- {0x0700, "Multiple peripheral devices selected"},
-
- {0x0800, "Logical unit communication failure"},
- {0x0801, "Logical unit communication time-out"},
- {0x0802, "Logical unit communication parity error"},
- {0x0803, "Logical unit communication CRC error (Ultra-DMA/32)"},
- {0x0804, "Unreachable copy target"},
-
- {0x0900, "Track following error"},
- {0x0901, "Tracking servo failure"},
- {0x0902, "Focus servo failure"},
- {0x0903, "Spindle servo failure"},
- {0x0904, "Head select fault"},
- {0x0905, "Vibration induced tracking error"},
-
- {0x0A00, "Error log overflow"},
-
- {0x0B00, "Warning"},
- {0x0B01, "Warning - specified temperature exceeded"},
- {0x0B02, "Warning - enclosure degraded"},
- {0x0B03, "Warning - background self-test failed"},
- {0x0B04, "Warning - background pre-scan detected medium error"},
- {0x0B05, "Warning - background medium scan detected medium error"},
- {0x0B06, "Warning - non-volatile cache now volatile"},
- {0x0B07, "Warning - degraded power to non-volatile cache"},
- {0x0B08, "Warning - power loss expected"},
- {0x0B09, "Warning - device statistics notification active"},
-
- {0x0C00, "Write error"},
- {0x0C01, "Write error - recovered with auto reallocation"},
- {0x0C02, "Write error - auto reallocation failed"},
- {0x0C03, "Write error - recommend reassignment"},
- {0x0C04, "Compression check miscompare error"},
- {0x0C05, "Data expansion occurred during compression"},
- {0x0C06, "Block not compressible"},
- {0x0C07, "Write error - recovery needed"},
- {0x0C08, "Write error - recovery failed"},
- {0x0C09, "Write error - loss of streaming"},
- {0x0C0A, "Write error - padding blocks added"},
- {0x0C0B, "Auxiliary memory write error"},
- {0x0C0C, "Write error - unexpected unsolicited data"},
- {0x0C0D, "Write error - not enough unsolicited data"},
- {0x0C0E, "Multiple write errors"},
- {0x0C0F, "Defects in error window"},
- {0x0C10, "Incomplete multiple atomic write operations"},
-
- {0x0D00, "Error detected by third party temporary initiator"},
- {0x0D01, "Third party device failure"},
- {0x0D02, "Copy target device not reachable"},
- {0x0D03, "Incorrect copy target device type"},
- {0x0D04, "Copy target device data underrun"},
- {0x0D05, "Copy target device data overrun"},
-
- {0x0E00, "Invalid information unit"},
- {0x0E01, "Information unit too short"},
- {0x0E02, "Information unit too long"},
- {0x0E03, "Invalid field in command information unit"},
-
- {0x1000, "Id CRC or ECC error"},
- {0x1001, "Logical block guard check failed"},
- {0x1002, "Logical block application tag check failed"},
- {0x1003, "Logical block reference tag check failed"},
- {0x1004, "Logical block protection error on recover buffered data"},
- {0x1005, "Logical block protection method error"},
-
- {0x1100, "Unrecovered read error"},
- {0x1101, "Read retries exhausted"},
- {0x1102, "Error too long to correct"},
- {0x1103, "Multiple read errors"},
- {0x1104, "Unrecovered read error - auto reallocate failed"},
- {0x1105, "L-EC uncorrectable error"},
- {0x1106, "CIRC unrecovered error"},
- {0x1107, "Data re-synchronization error"},
- {0x1108, "Incomplete block read"},
- {0x1109, "No gap found"},
- {0x110A, "Miscorrected error"},
- {0x110B, "Unrecovered read error - recommend reassignment"},
- {0x110C, "Unrecovered read error - recommend rewrite the data"},
- {0x110D, "De-compression CRC error"},
- {0x110E, "Cannot decompress using declared algorithm"},
- {0x110F, "Error reading UPC/EAN number"},
- {0x1110, "Error reading ISRC number"},
- {0x1111, "Read error - loss of streaming"},
- {0x1112, "Auxiliary memory read error"},
- {0x1113, "Read error - failed retransmission request"},
- {0x1114, "Read error - lba marked bad by application client"},
- {0x1115, "Write after sanitize required"},
-
- {0x1200, "Address mark not found for id field"},
-
- {0x1300, "Address mark not found for data field"},
-
- {0x1400, "Recorded entity not found"},
- {0x1401, "Record not found"},
- {0x1402, "Filemark or setmark not found"},
- {0x1403, "End-of-data not found"},
- {0x1404, "Block sequence error"},
- {0x1405, "Record not found - recommend reassignment"},
- {0x1406, "Record not found - data auto-reallocated"},
- {0x1407, "Locate operation failure"},
-
- {0x1500, "Random positioning error"},
- {0x1501, "Mechanical positioning error"},
- {0x1502, "Positioning error detected by read of medium"},
-
- {0x1600, "Data synchronization mark error"},
- {0x1601, "Data sync error - data rewritten"},
- {0x1602, "Data sync error - recommend rewrite"},
- {0x1603, "Data sync error - data auto-reallocated"},
- {0x1604, "Data sync error - recommend reassignment"},
-
- {0x1700, "Recovered data with no error correction applied"},
- {0x1701, "Recovered data with retries"},
- {0x1702, "Recovered data with positive head offset"},
- {0x1703, "Recovered data with negative head offset"},
- {0x1704, "Recovered data with retries and/or circ applied"},
- {0x1705, "Recovered data using previous sector id"},
- {0x1706, "Recovered data without ECC - data auto-reallocated"},
- {0x1707, "Recovered data without ECC - recommend reassignment"},
- {0x1708, "Recovered data without ECC - recommend rewrite"},
- {0x1709, "Recovered data without ECC - data rewritten"},
-
- {0x1800, "Recovered data with error correction applied"},
- {0x1801, "Recovered data with error corr. & retries applied"},
- {0x1802, "Recovered data - data auto-reallocated"},
- {0x1803, "Recovered data with CIRC"},
- {0x1804, "Recovered data with L-EC"},
- {0x1805, "Recovered data - recommend reassignment"},
- {0x1806, "Recovered data - recommend rewrite"},
- {0x1807, "Recovered data with ECC - data rewritten"},
- {0x1808, "Recovered data with linking"},
-
- {0x1900, "Defect list error"},
- {0x1901, "Defect list not available"},
- {0x1902, "Defect list error in primary list"},
- {0x1903, "Defect list error in grown list"},
-
- {0x1A00, "Parameter list length error"},
-
- {0x1B00, "Synchronous data transfer error"},
-
- {0x1C00, "Defect list not found"},
- {0x1C01, "Primary defect list not found"},
- {0x1C02, "Grown defect list not found"},
-
- {0x1D00, "Miscompare during verify operation"},
- {0x1D01, "Miscompare verify of unmapped LBA"},
-
- {0x1E00, "Recovered id with ECC correction"},
-
- {0x1F00, "Partial defect list transfer"},
-
- {0x2000, "Invalid command operation code"},
- {0x2001, "Access denied - initiator pending-enrolled"},
- {0x2002, "Access denied - no access rights"},
- {0x2003, "Access denied - invalid mgmt id key"},
- {0x2004, "Illegal command while in write capable state"},
- {0x2005, "Obsolete"},
- {0x2006, "Illegal command while in explicit address mode"},
- {0x2007, "Illegal command while in implicit address mode"},
- {0x2008, "Access denied - enrollment conflict"},
- {0x2009, "Access denied - invalid LU identifier"},
- {0x200A, "Access denied - invalid proxy token"},
- {0x200B, "Access denied - ACL LUN conflict"},
- {0x200C, "Illegal command when not in append-only mode"},
-
- {0x2100, "Logical block address out of range"},
- {0x2101, "Invalid element address"},
- {0x2102, "Invalid address for write"},
- {0x2103, "Invalid write crossing layer jump"},
- {0x2104, "Unaligned write command"},
- {0x2105, "Write boundary violation"},
- {0x2106, "Attempt to read invalid data"},
- {0x2107, "Read boundary violation"},
-
- {0x2200, "Illegal function (use 20 00, 24 00, or 26 00)"},
-
- {0x2300, "Invalid token operation, cause not reportable"},
- {0x2301, "Invalid token operation, unsupported token type"},
- {0x2302, "Invalid token operation, remote token usage not supported"},
- {0x2303, "Invalid token operation, remote rod token creation not "
- "supported"},
- {0x2304, "Invalid token operation, token unknown"},
- {0x2305, "Invalid token operation, token corrupt"},
- {0x2306, "Invalid token operation, token revoked"},
- {0x2307, "Invalid token operation, token expired"},
- {0x2308, "Invalid token operation, token cancelled"},
- {0x2309, "Invalid token operation, token deleted"},
- {0x230A, "Invalid token operation, invalid token length"},
-
- {0x2400, "Invalid field in cdb"},
- {0x2401, "CDB decryption error"},
- {0x2402, "Obsolete"},
- {0x2403, "Obsolete"},
- {0x2404, "Security audit value frozen"},
- {0x2405, "Security working key frozen"},
- {0x2406, "Nonce not unique"},
- {0x2407, "Nonce timestamp out of range"},
- {0x2408, "Invalid XCDB"},
-
- {0x2500, "Logical unit not supported"},
-
- {0x2600, "Invalid field in parameter list"},
- {0x2601, "Parameter not supported"},
- {0x2602, "Parameter value invalid"},
- {0x2603, "Threshold parameters not supported"},
- {0x2604, "Invalid release of persistent reservation"},
- {0x2605, "Data decryption error"},
- {0x2606, "Too many target descriptors"},
- {0x2607, "Unsupported target descriptor type code"},
- {0x2608, "Too many segment descriptors"},
- {0x2609, "Unsupported segment descriptor type code"},
- {0x260A, "Unexpected inexact segment"},
- {0x260B, "Inline data length exceeded"},
- {0x260C, "Invalid operation for copy source or destination"},
- {0x260D, "Copy segment granularity violation"},
- {0x260E, "Invalid parameter while port is enabled"},
- {0x260F, "Invalid data-out buffer integrity check value"},
- {0x2610, "Data decryption key fail limit reached"},
- {0x2611, "Incomplete key-associated data set"},
- {0x2612, "Vendor specific key reference not found"},
-
- {0x2700, "Write protected"},
- {0x2701, "Hardware write protected"},
- {0x2702, "Logical unit software write protected"},
- {0x2703, "Associated write protect"},
- {0x2704, "Persistent write protect"},
- {0x2705, "Permanent write protect"},
- {0x2706, "Conditional write protect"},
- {0x2707, "Space allocation failed write protect"},
- {0x2708, "Zone is read only"},
-
- {0x2800, "Not ready to ready change, medium may have changed"},
- {0x2801, "Import or export element accessed"},
- {0x2802, "Format-layer may have changed"},
- {0x2803, "Import/export element accessed, medium changed"},
-
- {0x2900, "Power on, reset, or bus device reset occurred"},
- {0x2901, "Power on occurred"},
- {0x2902, "Scsi bus reset occurred"},
- {0x2903, "Bus device reset function occurred"},
- {0x2904, "Device internal reset"},
- {0x2905, "Transceiver mode changed to single-ended"},
- {0x2906, "Transceiver mode changed to lvd"},
- {0x2907, "I_T nexus loss occurred"},
-
- {0x2A00, "Parameters changed"},
- {0x2A01, "Mode parameters changed"},
- {0x2A02, "Log parameters changed"},
- {0x2A03, "Reservations preempted"},
- {0x2A04, "Reservations released"},
- {0x2A05, "Registrations preempted"},
- {0x2A06, "Asymmetric access state changed"},
- {0x2A07, "Implicit asymmetric access state transition failed"},
- {0x2A08, "Priority changed"},
- {0x2A09, "Capacity data has changed"},
- {0x2A0A, "Error history I_T nexus cleared"},
- {0x2A0B, "Error history snapshot released"},
- {0x2A0C, "Error recovery attributes have changed"},
- {0x2A0D, "Data encryption capabilities changed"},
- {0x2A10, "Timestamp changed"},
- {0x2A11, "Data encryption parameters changed by another i_t nexus"},
- {0x2A12, "Data encryption parameters changed by vendor specific "
- "event"},
- {0x2A13, "Data encryption key instance counter has changed"},
- {0x2A14, "SA creation capabilities data has changed"},
- {0x2A15, "Medium removal prevention preempted"},
-
- {0x2B00, "Copy cannot execute since host cannot disconnect"},
-
- {0x2C00, "Command sequence error"},
- {0x2C01, "Too many windows specified"},
- {0x2C02, "Invalid combination of windows specified"},
- {0x2C03, "Current program area is not empty"},
- {0x2C04, "Current program area is empty"},
- {0x2C05, "Illegal power condition request"},
- {0x2C06, "Persistent prevent conflict"},
- {0x2C07, "Previous busy status"},
- {0x2C08, "Previous task set full status"},
- {0x2C09, "Previous reservation conflict status"},
- {0x2C0A, "Partition or collection contains user objects"},
- {0x2C0B, "Not reserved"},
- {0x2C0C, "Orwrite generation does not match"},
- {0x2C0D, "Reset write pointer not allowed"},
- {0x2C0E, "Zone is offline"},
-
- {0x2D00, "Overwrite error on update in place"},
-
- {0x2E00, "Insufficient time for operation"},
- {0x2E01, "Command timeout before processing"},
- {0x2E02, "Command timeout during processing"},
- {0x2E03, "Command timeout during processing due to error recovery"},
-
- {0x2F00, "Commands cleared by another initiator"},
- {0x2F01, "Commands cleared by power loss notification"},
- {0x2F02, "Commands cleared by device server"},
- {0x2F03, "Some commands cleared by queuing layer event"},
-
- {0x3000, "Incompatible medium installed"},
- {0x3001, "Cannot read medium - unknown format"},
- {0x3002, "Cannot read medium - incompatible format"},
- {0x3003, "Cleaning cartridge installed"},
- {0x3004, "Cannot write medium - unknown format"},
- {0x3005, "Cannot write medium - incompatible format"},
- {0x3006, "Cannot format medium - incompatible medium"},
- {0x3007, "Cleaning failure"},
- {0x3008, "Cannot write - application code mismatch"},
- {0x3009, "Current session not fixated for append"},
- {0x300A, "Cleaning request rejected"},
- {0x300C, "WORM medium - overwrite attempted"},
- {0x300D, "WORM medium - integrity check"},
- {0x3010, "Medium not formatted"},
- {0x3011, "Incompatible volume type"},
- {0x3012, "Incompatible volume qualifier"},
- {0x3013, "Cleaning volume expired"},
-
- {0x3100, "Medium format corrupted"},
- {0x3101, "Format command failed"},
- {0x3102, "Zoned formatting failed due to spare linking"},
- {0x3103, "Sanitize command failed"},
-
- {0x3200, "No defect spare location available"},
- {0x3201, "Defect list update failure"},
-
- {0x3300, "Tape length error"},
-
- {0x3400, "Enclosure failure"},
-
- {0x3500, "Enclosure services failure"},
- {0x3501, "Unsupported enclosure function"},
- {0x3502, "Enclosure services unavailable"},
- {0x3503, "Enclosure services transfer failure"},
- {0x3504, "Enclosure services transfer refused"},
- {0x3505, "Enclosure services checksum error"},
-
- {0x3600, "Ribbon, ink, or toner failure"},
-
- {0x3700, "Rounded parameter"},
-
- {0x3800, "Event status notification"},
- {0x3802, "Esn - power management class event"},
- {0x3804, "Esn - media class event"},
- {0x3806, "Esn - device busy class event"},
- {0x3807, "Thin Provisioning soft threshold reached"},
-
- {0x3900, "Saving parameters not supported"},
-
- {0x3A00, "Medium not present"},
- {0x3A01, "Medium not present - tray closed"},
- {0x3A02, "Medium not present - tray open"},
- {0x3A03, "Medium not present - loadable"},
- {0x3A04, "Medium not present - medium auxiliary memory accessible"},
-
- {0x3B00, "Sequential positioning error"},
- {0x3B01, "Tape position error at beginning-of-medium"},
- {0x3B02, "Tape position error at end-of-medium"},
- {0x3B03, "Tape or electronic vertical forms unit not ready"},
- {0x3B04, "Slew failure"},
- {0x3B05, "Paper jam"},
- {0x3B06, "Failed to sense top-of-form"},
- {0x3B07, "Failed to sense bottom-of-form"},
- {0x3B08, "Reposition error"},
- {0x3B09, "Read past end of medium"},
- {0x3B0A, "Read past beginning of medium"},
- {0x3B0B, "Position past end of medium"},
- {0x3B0C, "Position past beginning of medium"},
- {0x3B0D, "Medium destination element full"},
- {0x3B0E, "Medium source element empty"},
- {0x3B0F, "End of medium reached"},
- {0x3B11, "Medium magazine not accessible"},
- {0x3B12, "Medium magazine removed"},
- {0x3B13, "Medium magazine inserted"},
- {0x3B14, "Medium magazine locked"},
- {0x3B15, "Medium magazine unlocked"},
- {0x3B16, "Mechanical positioning or changer error"},
- {0x3B17, "Read past end of user object"},
- {0x3B18, "Element disabled"},
- {0x3B19, "Element enabled"},
- {0x3B1A, "Data transfer device removed"},
- {0x3B1B, "Data transfer device inserted"},
- {0x3B1C, "Too many logical objects on partition to support "
- "operation"},
-
- {0x3D00, "Invalid bits in identify message"},
-
- {0x3E00, "Logical unit has not self-configured yet"},
- {0x3E01, "Logical unit failure"},
- {0x3E02, "Timeout on logical unit"},
- {0x3E03, "Logical unit failed self-test"},
- {0x3E04, "Logical unit unable to update self-test log"},
-
- {0x3F00, "Target operating conditions have changed"},
- {0x3F01, "Microcode has been changed"},
- {0x3F02, "Changed operating definition"},
- {0x3F03, "Inquiry data has changed"},
- {0x3F04, "Component device attached"},
- {0x3F05, "Device identifier changed"},
- {0x3F06, "Redundancy group created or modified"},
- {0x3F07, "Redundancy group deleted"},
- {0x3F08, "Spare created or modified"},
- {0x3F09, "Spare deleted"},
- {0x3F0A, "Volume set created or modified"},
- {0x3F0B, "Volume set deleted"},
- {0x3F0C, "Volume set deassigned"},
- {0x3F0D, "Volume set reassigned"},
- {0x3F0E, "Reported luns data has changed"},
- {0x3F0F, "Echo buffer overwritten"},
- {0x3F10, "Medium loadable"},
- {0x3F11, "Medium auxiliary memory accessible"},
- {0x3F12, "iSCSI IP address added"},
- {0x3F13, "iSCSI IP address removed"},
- {0x3F14, "iSCSI IP address changed"},
- {0x3F15, "Inspect referrals sense descriptors"},
- {0x3F16, "Microcode has been changed without reset"},
-/*
- * {0x40NN, "Ram failure"},
- * {0x40NN, "Diagnostic failure on component nn"},
- * {0x41NN, "Data path failure"},
- * {0x42NN, "Power-on or self-test failure"},
- */
- {0x4300, "Message error"},
-
- {0x4400, "Internal target failure"},
- {0x4401, "Persistent reservation information lost"},
- {0x4471, "ATA device failed set features"},
-
- {0x4500, "Select or reselect failure"},
-
- {0x4600, "Unsuccessful soft reset"},
-
- {0x4700, "Scsi parity error"},
- {0x4701, "Data phase CRC error detected"},
- {0x4702, "Scsi parity error detected during st data phase"},
- {0x4703, "Information unit iuCRC error detected"},
- {0x4704, "Asynchronous information protection error detected"},
- {0x4705, "Protocol service CRC error"},
- {0x4706, "Phy test function in progress"},
- {0x477f, "Some commands cleared by iSCSI Protocol event"},
-
- {0x4800, "Initiator detected error message received"},
-
- {0x4900, "Invalid message error"},
-
- {0x4A00, "Command phase error"},
-
- {0x4B00, "Data phase error"},
- {0x4B01, "Invalid target port transfer tag received"},
- {0x4B02, "Too much write data"},
- {0x4B03, "Ack/nak timeout"},
- {0x4B04, "Nak received"},
- {0x4B05, "Data offset error"},
- {0x4B06, "Initiator response timeout"},
- {0x4B07, "Connection lost"},
- {0x4B08, "Data-in buffer overflow - data buffer size"},
- {0x4B09, "Data-in buffer overflow - data buffer descriptor area"},
- {0x4B0A, "Data-in buffer error"},
- {0x4B0B, "Data-out buffer overflow - data buffer size"},
- {0x4B0C, "Data-out buffer overflow - data buffer descriptor area"},
- {0x4B0D, "Data-out buffer error"},
- {0x4B0E, "PCIe fabric error"},
- {0x4B0F, "PCIe completion timeout"},
- {0x4B10, "PCIe completer abort"},
- {0x4B11, "PCIe poisoned tlp received"},
- {0x4B12, "PCIe eCRC check failed"},
- {0x4B13, "PCIe unsupported request"},
- {0x4B14, "PCIe acs violation"},
- {0x4B15, "PCIe tlp prefix blocked"},
-
- {0x4C00, "Logical unit failed self-configuration"},
-/*
- * {0x4DNN, "Tagged overlapped commands (nn = queue tag)"},
- */
- {0x4E00, "Overlapped commands attempted"},
-
- {0x5000, "Write append error"},
- {0x5001, "Write append position error"},
- {0x5002, "Position error related to timing"},
-
- {0x5100, "Erase failure"},
- {0x5101, "Erase failure - incomplete erase operation detected"},
-
- {0x5200, "Cartridge fault"},
-
- {0x5300, "Media load or eject failed"},
- {0x5301, "Unload tape failure"},
- {0x5302, "Medium removal prevented"},
- {0x5303, "Medium removal prevented by data transfer element"},
- {0x5304, "Medium thread or unthread failure"},
- {0x5305, "Volume identifier invalid"},
- {0x5306, "Volume identifier missing"},
- {0x5307, "Duplicate volume identifier"},
- {0x5308, "Element status unknown"},
- {0x5309, "Data transfer device error - load failed"},
- {0x530a, "Data transfer device error - unload failed"},
- {0x530b, "Data transfer device error - unload missing"},
- {0x530c, "Data transfer device error - eject failed"},
- {0x530d, "Data transfer device error - library communication failed"},
-
- {0x5400, "Scsi to host system interface failure"},
-
- {0x5500, "System resource failure"},
- {0x5501, "System buffer full"},
- {0x5502, "Insufficient reservation resources"},
- {0x5503, "Insufficient resources"},
- {0x5504, "Insufficient registration resources"},
- {0x5505, "Insufficient access control resources"},
- {0x5506, "Auxiliary memory out of space"},
- {0x5507, "Quota error"},
- {0x5508, "Maximum number of supplemental decryption keys exceeded"},
- {0x5509, "Medium auxiliary memory not accessible"},
- {0x550A, "Data currently unavailable"},
- {0x550B, "Insufficient power for operation"},
- {0x550C, "Insufficient resources to create rod"},
- {0x550D, "Insufficient resources to create rod token"},
- {0x550E, "Insufficient zone resources"},
-
- {0x5700, "Unable to recover table-of-contents"},
-
- {0x5800, "Generation does not exist"},
-
- {0x5900, "Updated block read"},
-
- {0x5A00, "Operator request or state change input"},
- {0x5A01, "Operator medium removal request"},
- {0x5A02, "Operator selected write protect"},
- {0x5A03, "Operator selected write permit"},
-
- {0x5B00, "Log exception"},
- {0x5B01, "Threshold condition met"},
- {0x5B02, "Log counter at maximum"},
- {0x5B03, "Log list codes exhausted"},
-
- {0x5C00, "Rpl status change"},
- {0x5C01, "Spindles synchronized"},
- {0x5C02, "Spindles not synchronized"},
-
- {0x5D00, "Failure prediction threshold exceeded"},
- {0x5D01, "Media failure prediction threshold exceeded"},
- {0x5D02, "Logical unit failure prediction threshold exceeded"},
- {0x5D03, "Spare area exhaustion prediction threshold exceeded"},
- {0x5D10, "Hardware impending failure general hard drive failure"},
- {0x5D11, "Hardware impending failure drive error rate too high"},
- {0x5D12, "Hardware impending failure data error rate too high"},
- {0x5D13, "Hardware impending failure seek error rate too high"},
- {0x5D14, "Hardware impending failure too many block reassigns"},
- {0x5D15, "Hardware impending failure access times too high"},
- {0x5D16, "Hardware impending failure start unit times too high"},
- {0x5D17, "Hardware impending failure channel parametrics"},
- {0x5D18, "Hardware impending failure controller detected"},
- {0x5D19, "Hardware impending failure throughput performance"},
- {0x5D1A, "Hardware impending failure seek time performance"},
- {0x5D1B, "Hardware impending failure spin-up retry count"},
- {0x5D1C, "Hardware impending failure drive calibration retry count"},
- {0x5D20, "Controller impending failure general hard drive failure"},
- {0x5D21, "Controller impending failure drive error rate too high"},
- {0x5D22, "Controller impending failure data error rate too high"},
- {0x5D23, "Controller impending failure seek error rate too high"},
- {0x5D24, "Controller impending failure too many block reassigns"},
- {0x5D25, "Controller impending failure access times too high"},
- {0x5D26, "Controller impending failure start unit times too high"},
- {0x5D27, "Controller impending failure channel parametrics"},
- {0x5D28, "Controller impending failure controller detected"},
- {0x5D29, "Controller impending failure throughput performance"},
- {0x5D2A, "Controller impending failure seek time performance"},
- {0x5D2B, "Controller impending failure spin-up retry count"},
- {0x5D2C, "Controller impending failure drive calibration retry count"},
- {0x5D30, "Data channel impending failure general hard drive failure"},
- {0x5D31, "Data channel impending failure drive error rate too high"},
- {0x5D32, "Data channel impending failure data error rate too high"},
- {0x5D33, "Data channel impending failure seek error rate too high"},
- {0x5D34, "Data channel impending failure too many block reassigns"},
- {0x5D35, "Data channel impending failure access times too high"},
- {0x5D36, "Data channel impending failure start unit times too high"},
- {0x5D37, "Data channel impending failure channel parametrics"},
- {0x5D38, "Data channel impending failure controller detected"},
- {0x5D39, "Data channel impending failure throughput performance"},
- {0x5D3A, "Data channel impending failure seek time performance"},
- {0x5D3B, "Data channel impending failure spin-up retry count"},
- {0x5D3C, "Data channel impending failure drive calibration retry "
- "count"},
- {0x5D40, "Servo impending failure general hard drive failure"},
- {0x5D41, "Servo impending failure drive error rate too high"},
- {0x5D42, "Servo impending failure data error rate too high"},
- {0x5D43, "Servo impending failure seek error rate too high"},
- {0x5D44, "Servo impending failure too many block reassigns"},
- {0x5D45, "Servo impending failure access times too high"},
- {0x5D46, "Servo impending failure start unit times too high"},
- {0x5D47, "Servo impending failure channel parametrics"},
- {0x5D48, "Servo impending failure controller detected"},
- {0x5D49, "Servo impending failure throughput performance"},
- {0x5D4A, "Servo impending failure seek time performance"},
- {0x5D4B, "Servo impending failure spin-up retry count"},
- {0x5D4C, "Servo impending failure drive calibration retry count"},
- {0x5D50, "Spindle impending failure general hard drive failure"},
- {0x5D51, "Spindle impending failure drive error rate too high"},
- {0x5D52, "Spindle impending failure data error rate too high"},
- {0x5D53, "Spindle impending failure seek error rate too high"},
- {0x5D54, "Spindle impending failure too many block reassigns"},
- {0x5D55, "Spindle impending failure access times too high"},
- {0x5D56, "Spindle impending failure start unit times too high"},
- {0x5D57, "Spindle impending failure channel parametrics"},
- {0x5D58, "Spindle impending failure controller detected"},
- {0x5D59, "Spindle impending failure throughput performance"},
- {0x5D5A, "Spindle impending failure seek time performance"},
- {0x5D5B, "Spindle impending failure spin-up retry count"},
- {0x5D5C, "Spindle impending failure drive calibration retry count"},
- {0x5D60, "Firmware impending failure general hard drive failure"},
- {0x5D61, "Firmware impending failure drive error rate too high"},
- {0x5D62, "Firmware impending failure data error rate too high"},
- {0x5D63, "Firmware impending failure seek error rate too high"},
- {0x5D64, "Firmware impending failure too many block reassigns"},
- {0x5D65, "Firmware impending failure access times too high"},
- {0x5D66, "Firmware impending failure start unit times too high"},
- {0x5D67, "Firmware impending failure channel parametrics"},
- {0x5D68, "Firmware impending failure controller detected"},
- {0x5D69, "Firmware impending failure throughput performance"},
- {0x5D6A, "Firmware impending failure seek time performance"},
- {0x5D6B, "Firmware impending failure spin-up retry count"},
- {0x5D6C, "Firmware impending failure drive calibration retry count"},
- {0x5DFF, "Failure prediction threshold exceeded (false)"},
-
- {0x5E00, "Low power condition on"},
- {0x5E01, "Idle condition activated by timer"},
- {0x5E02, "Standby condition activated by timer"},
- {0x5E03, "Idle condition activated by command"},
- {0x5E04, "Standby condition activated by command"},
- {0x5E05, "Idle_b condition activated by timer"},
- {0x5E06, "Idle_b condition activated by command"},
- {0x5E07, "Idle_c condition activated by timer"},
- {0x5E08, "Idle_c condition activated by command"},
- {0x5E09, "Standby_y condition activated by timer"},
- {0x5E0A, "Standby_y condition activated by command"},
- {0x5E41, "Power state change to active"},
- {0x5E42, "Power state change to idle"},
- {0x5E43, "Power state change to standby"},
- {0x5E45, "Power state change to sleep"},
- {0x5E47, "Power state change to device control"},
-
- {0x6000, "Lamp failure"},
-
- {0x6100, "Video acquisition error"},
- {0x6101, "Unable to acquire video"},
- {0x6102, "Out of focus"},
-
- {0x6200, "Scan head positioning error"},
-
- {0x6300, "End of user area encountered on this track"},
- {0x6301, "Packet does not fit in available space"},
-
- {0x6400, "Illegal mode for this track"},
- {0x6401, "Invalid packet size"},
-
- {0x6500, "Voltage fault"},
-
- {0x6600, "Automatic document feeder cover up"},
- {0x6601, "Automatic document feeder lift up"},
- {0x6602, "Document jam in automatic document feeder"},
- {0x6603, "Document miss feed automatic in document feeder"},
-
- {0x6700, "Configuration failure"},
- {0x6701, "Configuration of incapable logical units failed"},
- {0x6702, "Add logical unit failed"},
- {0x6703, "Modification of logical unit failed"},
- {0x6704, "Exchange of logical unit failed"},
- {0x6705, "Remove of logical unit failed"},
- {0x6706, "Attachment of logical unit failed"},
- {0x6707, "Creation of logical unit failed"},
- {0x6708, "Assign failure occurred"},
- {0x6709, "Multiply assigned logical unit"},
- {0x670A, "Set target port groups command failed"},
- {0x670B, "ATA device feature not enabled"},
-
- {0x6800, "Logical unit not configured"},
- {0x6801, "Subsidiary logical unit not configured"},
-
- {0x6900, "Data loss on logical unit"},
- {0x6901, "Multiple logical unit failures"},
- {0x6902, "Parity/data mismatch"},
-
- {0x6A00, "Informational, refer to log"},
-
- {0x6B00, "State change has occurred"},
- {0x6B01, "Redundancy level got better"},
- {0x6B02, "Redundancy level got worse"},
-
- {0x6C00, "Rebuild failure occurred"},
-
- {0x6D00, "Recalculate failure occurred"},
-
- {0x6E00, "Command to logical unit failed"},
-
- {0x6F00, "Copy protection key exchange failure - authentication "
- "failure"},
- {0x6F01, "Copy protection key exchange failure - key not present"},
- {0x6F02, "Copy protection key exchange failure - key not established"},
- {0x6F03, "Read of scrambled sector without authentication"},
- {0x6F04, "Media region code is mismatched to logical unit region"},
- {0x6F05, "Drive region must be permanent/region reset count error"},
- {0x6F06, "Insufficient block count for binding nonce recording"},
- {0x6F07, "Conflict in binding nonce recording"},
-/*
- * {0x70NN, "Decompression exception short algorithm id of nn"},
- */
- {0x7100, "Decompression exception long algorithm id"},
-
- {0x7200, "Session fixation error"},
- {0x7201, "Session fixation error writing lead-in"},
- {0x7202, "Session fixation error writing lead-out"},
- {0x7203, "Session fixation error - incomplete track in session"},
- {0x7204, "Empty or partially written reserved track"},
- {0x7205, "No more track reservations allowed"},
- {0x7206, "RMZ extension is not allowed"},
- {0x7207, "No more test zone extensions are allowed"},
-
- {0x7300, "Cd control error"},
- {0x7301, "Power calibration area almost full"},
- {0x7302, "Power calibration area is full"},
- {0x7303, "Power calibration area error"},
- {0x7304, "Program memory area update failure"},
- {0x7305, "Program memory area is full"},
- {0x7306, "RMA/PMA is almost full"},
- {0x7310, "Current power calibration area almost full"},
- {0x7311, "Current power calibration area is full"},
- {0x7317, "RDZ is full"},
-
- {0x7400, "Security error"},
- {0x7401, "Unable to decrypt data"},
- {0x7402, "Unencrypted data encountered while decrypting"},
- {0x7403, "Incorrect data encryption key"},
- {0x7404, "Cryptographic integrity validation failed"},
- {0x7405, "Error decrypting data"},
- {0x7406, "Unknown signature verification key"},
- {0x7407, "Encryption parameters not useable"},
- {0x7408, "Digital signature validation failure"},
- {0x7409, "Encryption mode mismatch on read"},
- {0x740A, "Encrypted block not raw read enabled"},
- {0x740B, "Incorrect Encryption parameters"},
- {0x740C, "Unable to decrypt parameter list"},
- {0x740D, "Encryption algorithm disabled"},
- {0x7410, "SA creation parameter value invalid"},
- {0x7411, "SA creation parameter value rejected"},
- {0x7412, "Invalid SA usage"},
- {0x7421, "Data Encryption configuration prevented"},
- {0x7430, "SA creation parameter not supported"},
- {0x7440, "Authentication failed"},
- {0x7461, "External data encryption key manager access error"},
- {0x7462, "External data encryption key manager error"},
- {0x7463, "External data encryption key not found"},
- {0x7464, "External data encryption request not authorized"},
- {0x746E, "External data encryption control timeout"},
- {0x746F, "External data encryption control error"},
- {0x7471, "Logical unit access not authorized"},
- {0x7479, "Security conflict in translated device"},
-
- {0, NULL}
+#define SENSE_CODE(c, s) {c, sizeof(s)},
+#include "sense_codes.h"
+#undef SENSE_CODE
};
+static const char *additional_text =
+#define SENSE_CODE(c, s) s "\0"
+#include "sense_codes.h"
+#undef SENSE_CODE
+ ;
+
struct error_info2 {
unsigned char code1, code2_min, code2_max;
const char * str;
@@ -1197,11 +377,14 @@ scsi_extd_sense_format(unsigned char asc, unsigned char ascq, const char **fmt)
{
int i;
unsigned short code = ((asc << 8) | ascq);
+ unsigned offset = 0;
*fmt = NULL;
- for (i = 0; additional[i].text; i++)
+ for (i = 0; i < ARRAY_SIZE(additional); i++) {
if (additional[i].code12 == code)
- return additional[i].text;
+ return additional_text + offset;
+ offset += additional[i].size;
+ }
for (i = 0; additional2[i].fmt; i++) {
if (additional2[i].code1 == asc &&
ascq >= additional2[i].code2_min &&
diff --git a/drivers/scsi/cxlflash/superpipe.c b/drivers/scsi/cxlflash/superpipe.c
index d8a5cb3cd2bd..ce1507023132 100644
--- a/drivers/scsi/cxlflash/superpipe.c
+++ b/drivers/scsi/cxlflash/superpipe.c
@@ -1615,6 +1615,13 @@ err1:
* place at the same time and the failure was due to CXL services being
* unable to keep up.
*
+ * As this routine is called on ioctl context, it holds the ioctl r/w
+ * semaphore that is used to drain ioctls in recovery scenarios. The
+ * implementation to achieve the pacing described above (a local mutex)
+ * requires that the ioctl r/w semaphore be dropped and reacquired to
+ * avoid a 3-way deadlock when multiple process recoveries operate in
+ * parallel.
+ *
* Because a user can detect an error condition before the kernel, it is
* quite possible for this routine to act as the kernel's EEH detection
* source (MMIO read of mbox_r). Because of this, there is a window of
@@ -1642,9 +1649,17 @@ static int cxlflash_afu_recover(struct scsi_device *sdev,
int rc = 0;
atomic_inc(&cfg->recovery_threads);
+ up_read(&cfg->ioctl_rwsem);
rc = mutex_lock_interruptible(mutex);
+ down_read(&cfg->ioctl_rwsem);
if (rc)
goto out;
+ rc = check_state(cfg);
+ if (rc) {
+ dev_err(dev, "%s: Failed state! rc=%d\n", __func__, rc);
+ rc = -ENODEV;
+ goto out;
+ }
dev_dbg(dev, "%s: reason 0x%016llX rctxid=%016llX\n",
__func__, recover->reason, rctxid);
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index a655cf29c16f..752b5c9d1ab2 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -190,15 +190,18 @@ static int submit_stpg(struct scsi_device *sdev, int group_id,
ALUA_FAILOVER_RETRIES, NULL, req_flags);
}
-struct alua_port_group *alua_find_get_pg(char *id_str, size_t id_size,
- int group_id)
+static struct alua_port_group *alua_find_get_pg(char *id_str, size_t id_size,
+ int group_id)
{
struct alua_port_group *pg;
+ if (!id_str || !id_size || !strlen(id_str))
+ return NULL;
+
list_for_each_entry(pg, &port_group_list, node) {
if (pg->group_id != group_id)
continue;
- if (pg->device_id_len != id_size)
+ if (!pg->device_id_len || pg->device_id_len != id_size)
continue;
if (strncmp(pg->device_id_str, id_str, id_size))
continue;
@@ -219,8 +222,8 @@ struct alua_port_group *alua_find_get_pg(char *id_str, size_t id_size,
* Allocate a new port_group structure for a given
* device.
*/
-struct alua_port_group *alua_alloc_pg(struct scsi_device *sdev,
- int group_id, int tpgs)
+static struct alua_port_group *alua_alloc_pg(struct scsi_device *sdev,
+ int group_id, int tpgs)
{
struct alua_port_group *pg, *tmp_pg;
@@ -232,14 +235,14 @@ struct alua_port_group *alua_alloc_pg(struct scsi_device *sdev,
sizeof(pg->device_id_str));
if (pg->device_id_len <= 0) {
/*
- * Internal error: TPGS supported but no device
- * identifcation found. Disable ALUA support.
+ * TPGS supported but no device identification found.
+ * Generate private device identification.
*/
- kfree(pg);
sdev_printk(KERN_INFO, sdev,
"%s: No device descriptors found\n",
ALUA_DH_NAME);
- return ERR_PTR(-ENXIO);
+ pg->device_id_str[0] = '\0';
+ pg->device_id_len = 0;
}
pg->group_id = group_id;
pg->tpgs = tpgs;
@@ -354,9 +357,15 @@ static int alua_check_vpd(struct scsi_device *sdev, struct alua_dh_data *h,
return SCSI_DH_NOMEM;
return SCSI_DH_DEV_UNSUPP;
}
- sdev_printk(KERN_INFO, sdev,
- "%s: device %s port group %x rel port %x\n",
- ALUA_DH_NAME, pg->device_id_str, group_id, rel_port);
+ if (pg->device_id_len)
+ sdev_printk(KERN_INFO, sdev,
+ "%s: device %s port group %x rel port %x\n",
+ ALUA_DH_NAME, pg->device_id_str,
+ group_id, rel_port);
+ else
+ sdev_printk(KERN_INFO, sdev,
+ "%s: port group %x rel port %x\n",
+ ALUA_DH_NAME, group_id, rel_port);
/* Check for existing port group references */
spin_lock(&h->pg_lock);
diff --git a/drivers/scsi/dmx3191d.c b/drivers/scsi/dmx3191d.c
index 6c14e68b9e1a..9b5a457d4bca 100644
--- a/drivers/scsi/dmx3191d.c
+++ b/drivers/scsi/dmx3191d.c
@@ -34,11 +34,14 @@
* Definitions for the generic 5380 driver.
*/
-#define DONT_USE_INTR
-
#define NCR5380_read(reg) inb(instance->io_port + reg)
#define NCR5380_write(reg, value) outb(value, instance->io_port + reg)
+#define NCR5380_dma_xfer_len(instance, cmd, phase) (0)
+#define NCR5380_dma_recv_setup(instance, dst, len) (0)
+#define NCR5380_dma_send_setup(instance, src, len) (0)
+#define NCR5380_dma_residual(instance) (0)
+
#define NCR5380_implementation_fields /* none */
#include "NCR5380.h"
@@ -62,7 +65,6 @@ static struct scsi_host_template dmx3191d_driver_template = {
.cmd_per_lun = 2,
.use_clustering = DISABLE_CLUSTERING,
.cmd_size = NCR5380_CMD_SIZE,
- .max_sectors = 128,
};
static int dmx3191d_probe_one(struct pci_dev *pdev,
@@ -93,7 +95,7 @@ static int dmx3191d_probe_one(struct pci_dev *pdev,
*/
shost->irq = NO_IRQ;
- error = NCR5380_init(shost, FLAG_NO_PSEUDO_DMA);
+ error = NCR5380_init(shost, 0);
if (error)
goto out_host_put;
diff --git a/drivers/scsi/dtc.c b/drivers/scsi/dtc.c
index 6c736b071cf4..459863f94e46 100644
--- a/drivers/scsi/dtc.c
+++ b/drivers/scsi/dtc.c
@@ -1,6 +1,3 @@
-#define PSEUDO_DMA
-#define DONT_USE_INTR
-
/*
* DTC 3180/3280 driver, by
* Ray Van Tassle rayvt@comm.mot.com
@@ -54,7 +51,6 @@
#include <scsi/scsi_host.h>
#include "dtc.h"
-#define AUTOPROBE_IRQ
#include "NCR5380.h"
/*
@@ -229,7 +225,7 @@ found:
instance->base = addr;
((struct NCR5380_hostdata *)(instance)->hostdata)->base = base;
- if (NCR5380_init(instance, FLAG_NO_DMA_FIXUP))
+ if (NCR5380_init(instance, FLAG_LATE_DMA_SETUP))
goto out_unregister;
NCR5380_maybe_reset_bus(instance);
@@ -244,9 +240,10 @@ found:
if (instance->irq == 255)
instance->irq = NO_IRQ;
-#ifndef DONT_USE_INTR
/* With interrupts enabled, it will sometimes hang when doing heavy
* reads. So better not enable them until I finger it out. */
+ instance->irq = NO_IRQ;
+
if (instance->irq != NO_IRQ)
if (request_irq(instance->irq, dtc_intr, 0,
"dtc", instance)) {
@@ -258,11 +255,7 @@ found:
printk(KERN_WARNING "scsi%d : interrupts not enabled. for better interactive performance,\n", instance->host_no);
printk(KERN_WARNING "scsi%d : please jumper the board for a free IRQ.\n", instance->host_no);
}
-#else
- if (instance->irq != NO_IRQ)
- printk(KERN_WARNING "scsi%d : interrupts not used. Might as well not jumper it.\n", instance->host_no);
- instance->irq = NO_IRQ;
-#endif
+
dprintk(NDEBUG_INIT, "scsi%d : irq = %d\n",
instance->host_no, instance->irq);
@@ -323,7 +316,8 @@ static int dtc_biosparam(struct scsi_device *sdev, struct block_device *dev,
* timeout.
*/
-static inline int NCR5380_pread(struct Scsi_Host *instance, unsigned char *dst, int len)
+static inline int dtc_pread(struct Scsi_Host *instance,
+ unsigned char *dst, int len)
{
unsigned char *d = dst;
int i; /* For counting time spent in the poll-loop */
@@ -352,8 +346,6 @@ static inline int NCR5380_pread(struct Scsi_Host *instance, unsigned char *dst,
while (!(NCR5380_read(DTC_CONTROL_REG) & D_CR_ACCESS))
++i;
rtrc(0);
- if (i > hostdata->spin_max_r)
- hostdata->spin_max_r = i;
return (0);
}
@@ -370,7 +362,8 @@ static inline int NCR5380_pread(struct Scsi_Host *instance, unsigned char *dst,
* timeout.
*/
-static inline int NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *src, int len)
+static inline int dtc_pwrite(struct Scsi_Host *instance,
+ unsigned char *src, int len)
{
int i;
struct NCR5380_hostdata *hostdata = shost_priv(instance);
@@ -400,8 +393,6 @@ static inline int NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *src,
rtrc(7);
/* Check for parity error here. fixme. */
rtrc(0);
- if (i > hostdata->spin_max_w)
- hostdata->spin_max_w = i;
return (0);
}
@@ -440,8 +431,6 @@ static struct scsi_host_template driver_template = {
.detect = dtc_detect,
.release = dtc_release,
.proc_name = "dtc3x80",
- .show_info = dtc_show_info,
- .write_info = dtc_write_info,
.info = dtc_info,
.queuecommand = dtc_queue_command,
.eh_abort_handler = dtc_abort,
diff --git a/drivers/scsi/dtc.h b/drivers/scsi/dtc.h
index 56732cba8aba..fcb0a8ea7bda 100644
--- a/drivers/scsi/dtc.h
+++ b/drivers/scsi/dtc.h
@@ -21,14 +21,17 @@
#define NCR5380_dma_xfer_len(instance, cmd, phase) \
dtc_dma_xfer_len(cmd)
+#define NCR5380_dma_recv_setup dtc_pread
+#define NCR5380_dma_send_setup dtc_pwrite
+#define NCR5380_dma_residual(instance) (0)
#define NCR5380_intr dtc_intr
#define NCR5380_queue_command dtc_queue_command
#define NCR5380_abort dtc_abort
#define NCR5380_bus_reset dtc_bus_reset
#define NCR5380_info dtc_info
-#define NCR5380_show_info dtc_show_info
-#define NCR5380_write_info dtc_write_info
+
+#define NCR5380_io_delay(x) udelay(x)
/* 15 12 11 10
1001 1100 0000 0000 */
diff --git a/drivers/scsi/eata_pio.c b/drivers/scsi/eata_pio.c
index ca8003f0d8a3..4299fa485622 100644
--- a/drivers/scsi/eata_pio.c
+++ b/drivers/scsi/eata_pio.c
@@ -729,6 +729,7 @@ static int register_pio_HBA(long base, struct get_conf *gc, struct pci_dev *pdev
break;
case 0x24:
SD(sh)->EATA_revision = 'z';
+ break;
default:
SD(sh)->EATA_revision = '?';
}
diff --git a/drivers/scsi/esas2r/esas2r_main.c b/drivers/scsi/esas2r/esas2r_main.c
index 33581ba4386e..2aca4d16f39e 100644
--- a/drivers/scsi/esas2r/esas2r_main.c
+++ b/drivers/scsi/esas2r/esas2r_main.c
@@ -246,7 +246,7 @@ static struct scsi_host_template driver_template = {
.eh_target_reset_handler = esas2r_target_reset,
.can_queue = 128,
.this_id = -1,
- .sg_tablesize = SCSI_MAX_SG_SEGMENTS,
+ .sg_tablesize = SG_CHUNK_SIZE,
.cmd_per_lun =
ESAS2R_DEFAULT_CMD_PER_LUN,
.present = 0,
@@ -271,7 +271,7 @@ module_param(num_sg_lists, int, 0);
MODULE_PARM_DESC(num_sg_lists,
"Number of scatter/gather lists. Default 1024.");
-int sg_tablesize = SCSI_MAX_SG_SEGMENTS;
+int sg_tablesize = SG_CHUNK_SIZE;
module_param(sg_tablesize, int, 0);
MODULE_PARM_DESC(sg_tablesize,
"Maximum number of entries in a scatter/gather table.");
diff --git a/drivers/scsi/fnic/fnic.h b/drivers/scsi/fnic/fnic.h
index ce129e595b55..9ddc9200e0a4 100644
--- a/drivers/scsi/fnic/fnic.h
+++ b/drivers/scsi/fnic/fnic.h
@@ -39,7 +39,7 @@
#define DRV_NAME "fnic"
#define DRV_DESCRIPTION "Cisco FCoE HBA Driver"
-#define DRV_VERSION "1.6.0.17a"
+#define DRV_VERSION "1.6.0.21"
#define PFX DRV_NAME ": "
#define DFX DRV_NAME "%d: "
diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c
index f3032ca5051b..d9fd2f841585 100644
--- a/drivers/scsi/fnic/fnic_scsi.c
+++ b/drivers/scsi/fnic/fnic_scsi.c
@@ -439,7 +439,6 @@ static int fnic_queuecommand_lck(struct scsi_cmnd *sc, void (*done)(struct scsi_
int sg_count = 0;
unsigned long flags = 0;
unsigned long ptr;
- struct fc_rport_priv *rdata;
spinlock_t *io_lock = NULL;
int io_lock_acquired = 0;
@@ -455,14 +454,17 @@ static int fnic_queuecommand_lck(struct scsi_cmnd *sc, void (*done)(struct scsi_
return 0;
}
- rdata = lp->tt.rport_lookup(lp, rport->port_id);
- if (!rdata || (rdata->rp_state == RPORT_ST_DELETE)) {
- FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host,
- "returning IO as rport is removed\n");
- atomic64_inc(&fnic_stats->misc_stats.rport_not_ready);
- sc->result = DID_NO_CONNECT;
- done(sc);
- return 0;
+ if (rport) {
+ struct fc_rport_libfc_priv *rp = rport->dd_data;
+
+ if (!rp || rp->rp_state != RPORT_ST_READY) {
+ FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host,
+ "returning DID_NO_CONNECT for IO as rport is removed\n");
+ atomic64_inc(&fnic_stats->misc_stats.rport_not_ready);
+ sc->result = DID_NO_CONNECT<<16;
+ done(sc);
+ return 0;
+ }
}
if (lp->state != LPORT_ST_READY || !(lp->link_up))
@@ -1091,6 +1093,11 @@ static void fnic_fcpio_itmf_cmpl_handler(struct fnic *fnic,
atomic64_inc(
&term_stats->terminate_fw_timeouts);
break;
+ case FCPIO_ITMF_REJECTED:
+ FNIC_SCSI_DBG(KERN_INFO, fnic->lport->host,
+ "abort reject recd. id %d\n",
+ (int)(id & FNIC_TAG_MASK));
+ break;
case FCPIO_IO_NOT_FOUND:
if (CMD_FLAGS(sc) & FNIC_IO_ABTS_ISSUED)
atomic64_inc(&abts_stats->abort_io_not_found);
@@ -1111,9 +1118,15 @@ static void fnic_fcpio_itmf_cmpl_handler(struct fnic *fnic,
spin_unlock_irqrestore(io_lock, flags);
return;
}
- CMD_ABTS_STATUS(sc) = hdr_status;
+
CMD_FLAGS(sc) |= FNIC_IO_ABT_TERM_DONE;
+ /* If the status is IO not found consider it as success */
+ if (hdr_status == FCPIO_IO_NOT_FOUND)
+ CMD_ABTS_STATUS(sc) = FCPIO_SUCCESS;
+ else
+ CMD_ABTS_STATUS(sc) = hdr_status;
+
atomic64_dec(&fnic_stats->io_stats.active_ios);
if (atomic64_read(&fnic->io_cmpl_skip))
atomic64_dec(&fnic->io_cmpl_skip);
@@ -1926,21 +1939,31 @@ int fnic_abort_cmd(struct scsi_cmnd *sc)
CMD_STATE(sc) = FNIC_IOREQ_ABTS_COMPLETE;
+ start_time = io_req->start_time;
/*
* firmware completed the abort, check the status,
- * free the io_req irrespective of failure or success
+ * free the io_req if successful. If abort fails,
+ * Device reset will clean the I/O.
*/
- if (CMD_ABTS_STATUS(sc) != FCPIO_SUCCESS)
+ if (CMD_ABTS_STATUS(sc) == FCPIO_SUCCESS)
+ CMD_SP(sc) = NULL;
+ else {
ret = FAILED;
-
- CMD_SP(sc) = NULL;
+ spin_unlock_irqrestore(io_lock, flags);
+ goto fnic_abort_cmd_end;
+ }
spin_unlock_irqrestore(io_lock, flags);
- start_time = io_req->start_time;
fnic_release_ioreq_buf(fnic, io_req, sc);
mempool_free(io_req, fnic->io_req_pool);
+ if (sc->scsi_done) {
+ /* Call SCSI completion function to complete the IO */
+ sc->result = (DID_ABORT << 16);
+ sc->scsi_done(sc);
+ }
+
fnic_abort_cmd_end:
FNIC_TRACE(fnic_abort_cmd, sc->device->host->host_no,
sc->request->tag, sc,
@@ -2018,7 +2041,9 @@ lr_io_req_end:
* successfully aborted, 1 otherwise
*/
static int fnic_clean_pending_aborts(struct fnic *fnic,
- struct scsi_cmnd *lr_sc)
+ struct scsi_cmnd *lr_sc,
+ bool new_sc)
+
{
int tag, abt_tag;
struct fnic_io_req *io_req;
@@ -2036,10 +2061,10 @@ static int fnic_clean_pending_aborts(struct fnic *fnic,
spin_lock_irqsave(io_lock, flags);
sc = scsi_host_find_tag(fnic->lport->host, tag);
/*
- * ignore this lun reset cmd or cmds that do not belong to
- * this lun
+ * ignore this lun reset cmd if issued using new SC
+ * or cmds that do not belong to this lun
*/
- if (!sc || sc == lr_sc || sc->device != lun_dev) {
+ if (!sc || ((sc == lr_sc) && new_sc) || sc->device != lun_dev) {
spin_unlock_irqrestore(io_lock, flags);
continue;
}
@@ -2145,11 +2170,27 @@ static int fnic_clean_pending_aborts(struct fnic *fnic,
goto clean_pending_aborts_end;
}
CMD_STATE(sc) = FNIC_IOREQ_ABTS_COMPLETE;
- CMD_SP(sc) = NULL;
+
+ /* original sc used for lr is handled by dev reset code */
+ if (sc != lr_sc)
+ CMD_SP(sc) = NULL;
spin_unlock_irqrestore(io_lock, flags);
- fnic_release_ioreq_buf(fnic, io_req, sc);
- mempool_free(io_req, fnic->io_req_pool);
+ /* original sc used for lr is handled by dev reset code */
+ if (sc != lr_sc) {
+ fnic_release_ioreq_buf(fnic, io_req, sc);
+ mempool_free(io_req, fnic->io_req_pool);
+ }
+
+ /*
+ * Any IO is returned during reset, it needs to call scsi_done
+ * to return the scsi_cmnd to upper layer.
+ */
+ if (sc->scsi_done) {
+ /* Set result to let upper SCSI layer retry */
+ sc->result = DID_RESET << 16;
+ sc->scsi_done(sc);
+ }
}
schedule_timeout(msecs_to_jiffies(2 * fnic->config.ed_tov));
@@ -2243,6 +2284,7 @@ int fnic_device_reset(struct scsi_cmnd *sc)
int tag = 0;
DECLARE_COMPLETION_ONSTACK(tm_done);
int tag_gen_flag = 0; /*to track tags allocated by fnic driver*/
+ bool new_sc = 0;
/* Wait for rport to unblock */
fc_block_scsi_eh(sc);
@@ -2288,13 +2330,12 @@ int fnic_device_reset(struct scsi_cmnd *sc)
* fix the way the EH ioctls work for real, but until
* that happens we fail these explicit requests here.
*/
- if (shost_use_blk_mq(sc->device->host))
- goto fnic_device_reset_end;
tag = fnic_scsi_host_start_tag(fnic, sc);
if (unlikely(tag == SCSI_NO_TAG))
goto fnic_device_reset_end;
tag_gen_flag = 1;
+ new_sc = 1;
}
io_lock = fnic_io_lock_hash(fnic, sc);
spin_lock_irqsave(io_lock, flags);
@@ -2429,7 +2470,7 @@ int fnic_device_reset(struct scsi_cmnd *sc)
* the lun reset cmd. If all cmds get cleaned, the lun reset
* succeeds
*/
- if (fnic_clean_pending_aborts(fnic, sc)) {
+ if (fnic_clean_pending_aborts(fnic, sc, new_sc)) {
spin_lock_irqsave(io_lock, flags);
io_req = (struct fnic_io_req *)CMD_SP(sc);
FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host,
diff --git a/drivers/scsi/g_NCR5380.c b/drivers/scsi/g_NCR5380.c
index 90091e693020..516bd6c4f442 100644
--- a/drivers/scsi/g_NCR5380.c
+++ b/drivers/scsi/g_NCR5380.c
@@ -18,50 +18,10 @@
*
* Added ISAPNP support for DTC436 adapters,
* Thomas Sailer, sailer@ife.ee.ethz.ch
- */
-
-/*
- * TODO : flesh out DMA support, find some one actually using this (I have
- * a memory mapped Trantor board that works fine)
- */
-
-/*
- * The card is detected and initialized in one of several ways :
- * 1. With command line overrides - NCR5380=port,irq may be
- * used on the LILO command line to override the defaults.
- *
- * 2. With the GENERIC_NCR5380_OVERRIDE compile time define. This is
- * specified as an array of address, irq, dma, board tuples. Ie, for
- * one board at 0x350, IRQ5, no dma, I could say
- * -DGENERIC_NCR5380_OVERRIDE={{0xcc000, 5, DMA_NONE, BOARD_NCR5380}}
- *
- * -1 should be specified for no or DMA interrupt, -2 to autoprobe for an
- * IRQ line if overridden on the command line.
*
- * 3. When included as a module, with arguments passed on the command line:
- * ncr_irq=xx the interrupt
- * ncr_addr=xx the port or base address (for port or memory
- * mapped, resp.)
- * ncr_dma=xx the DMA
- * ncr_5380=1 to set up for a NCR5380 board
- * ncr_53c400=1 to set up for a NCR53C400 board
- * e.g.
- * modprobe g_NCR5380 ncr_irq=5 ncr_addr=0x350 ncr_5380=1
- * for a port mapped NCR5380 board or
- * modprobe g_NCR5380 ncr_irq=255 ncr_addr=0xc8000 ncr_53c400=1
- * for a memory mapped NCR53C400 board with interrupts disabled.
- *
- * 255 should be specified for no or DMA interrupt, 254 to autoprobe for an
- * IRQ line if overridden on the command line.
- *
+ * See Documentation/scsi/g_NCR5380.txt for more info.
*/
-#define AUTOPROBE_IRQ
-
-#ifdef CONFIG_SCSI_GENERIC_NCR53C400
-#define PSEUDO_DMA
-#endif
-
#include <asm/io.h>
#include <linux/blkdev.h>
#include <linux/module.h>
@@ -270,7 +230,7 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
#ifndef SCSI_G_NCR5380_MEM
int i;
int port_idx = -1;
- unsigned long region_size = 16;
+ unsigned long region_size;
#endif
static unsigned int __initdata ncr_53c400a_ports[] = {
0x280, 0x290, 0x300, 0x310, 0x330, 0x340, 0x348, 0x350, 0
@@ -290,6 +250,7 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
#ifdef SCSI_G_NCR5380_MEM
unsigned long base;
void __iomem *iomem;
+ resource_size_t iomem_size;
#endif
if (ncr_irq)
@@ -350,25 +311,17 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
flags = 0;
switch (overrides[current_override].board) {
case BOARD_NCR5380:
- flags = FLAG_NO_PSEUDO_DMA;
- break;
- case BOARD_NCR53C400:
-#ifdef PSEUDO_DMA
- flags = FLAG_NO_DMA_FIXUP;
-#endif
+ flags = FLAG_NO_PSEUDO_DMA | FLAG_DMA_FIXUP;
break;
case BOARD_NCR53C400A:
- flags = FLAG_NO_DMA_FIXUP;
ports = ncr_53c400a_ports;
magic = ncr_53c400a_magic;
break;
case BOARD_HP_C2502:
- flags = FLAG_NO_DMA_FIXUP;
ports = ncr_53c400a_ports;
magic = hp_c2502_magic;
break;
case BOARD_DTC3181E:
- flags = FLAG_NO_DMA_FIXUP;
ports = dtc_3181e_ports;
magic = ncr_53c400a_magic;
break;
@@ -381,20 +334,22 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
/* Disable the adapter and look for a free io port */
magic_configure(-1, 0, magic);
+ region_size = 16;
+
if (overrides[current_override].NCR5380_map_name != PORT_AUTO)
for (i = 0; ports[i]; i++) {
- if (!request_region(ports[i], 16, "ncr53c80"))
+ if (!request_region(ports[i], region_size, "ncr53c80"))
continue;
if (overrides[current_override].NCR5380_map_name == ports[i])
break;
- release_region(ports[i], 16);
+ release_region(ports[i], region_size);
} else
for (i = 0; ports[i]; i++) {
- if (!request_region(ports[i], 16, "ncr53c80"))
+ if (!request_region(ports[i], region_size, "ncr53c80"))
continue;
if (inb(ports[i]) == 0xff)
break;
- release_region(ports[i], 16);
+ release_region(ports[i], region_size);
}
if (ports[i]) {
/* At this point we have our region reserved */
@@ -410,17 +365,19 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
else
{
/* Not a 53C400A style setup - just grab */
- if(!(request_region(overrides[current_override].NCR5380_map_name, NCR5380_region_size, "ncr5380")))
+ region_size = 8;
+ if (!request_region(overrides[current_override].NCR5380_map_name,
+ region_size, "ncr5380"))
continue;
- region_size = NCR5380_region_size;
}
#else
base = overrides[current_override].NCR5380_map_name;
- if (!request_mem_region(base, NCR5380_region_size, "ncr5380"))
+ iomem_size = NCR53C400_region_size;
+ if (!request_mem_region(base, iomem_size, "ncr5380"))
continue;
- iomem = ioremap(base, NCR5380_region_size);
+ iomem = ioremap(base, iomem_size);
if (!iomem) {
- release_mem_region(base, NCR5380_region_size);
+ release_mem_region(base, iomem_size);
continue;
}
#endif
@@ -458,6 +415,7 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
#else
instance->base = overrides[current_override].NCR5380_map_name;
hostdata->iomem = iomem;
+ hostdata->iomem_size = iomem_size;
switch (overrides[current_override].board) {
case BOARD_NCR53C400:
hostdata->c400_ctl_status = 0x100;
@@ -472,7 +430,7 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
}
#endif
- if (NCR5380_init(instance, flags))
+ if (NCR5380_init(instance, flags | FLAG_LATE_DMA_SETUP))
goto out_unregister;
switch (overrides[current_override].board) {
@@ -524,7 +482,7 @@ out_release:
release_region(overrides[current_override].NCR5380_map_name, region_size);
#else
iounmap(iomem);
- release_mem_region(base, NCR5380_region_size);
+ release_mem_region(base, iomem_size);
#endif
return count;
}
@@ -546,45 +504,18 @@ static int generic_NCR5380_release_resources(struct Scsi_Host *instance)
#ifndef SCSI_G_NCR5380_MEM
release_region(instance->io_port, instance->n_io_port);
#else
- iounmap(((struct NCR5380_hostdata *)instance->hostdata)->iomem);
- release_mem_region(instance->base, NCR5380_region_size);
-#endif
- return 0;
-}
-
-#ifdef BIOSPARAM
-/**
- * generic_NCR5380_biosparam
- * @disk: disk to compute geometry for
- * @dev: device identifier for this disk
- * @ip: sizes to fill in
- *
- * Generates a BIOS / DOS compatible H-C-S mapping for the specified
- * device / size.
- *
- * XXX Most SCSI boards use this mapping, I could be incorrect. Someone
- * using hard disks on a trantor should verify that this mapping
- * corresponds to that used by the BIOS / ASPI driver by running the linux
- * fdisk program and matching the H_C_S coordinates to what DOS uses.
- *
- * Locks: none
- */
+ {
+ struct NCR5380_hostdata *hostdata = shost_priv(instance);
-static int
-generic_NCR5380_biosparam(struct scsi_device *sdev, struct block_device *bdev,
- sector_t capacity, int *ip)
-{
- ip[0] = 64;
- ip[1] = 32;
- ip[2] = capacity >> 11;
+ iounmap(hostdata->iomem);
+ release_mem_region(instance->base, hostdata->iomem_size);
+ }
+#endif
return 0;
}
-#endif
-
-#ifdef PSEUDO_DMA
/**
- * NCR5380_pread - pseudo DMA read
+ * generic_NCR5380_pread - pseudo DMA read
* @instance: adapter to read from
* @dst: buffer to read into
* @len: buffer length
@@ -593,7 +524,8 @@ generic_NCR5380_biosparam(struct scsi_device *sdev, struct block_device *bdev,
* controller
*/
-static inline int NCR5380_pread(struct Scsi_Host *instance, unsigned char *dst, int len)
+static inline int generic_NCR5380_pread(struct Scsi_Host *instance,
+ unsigned char *dst, int len)
{
struct NCR5380_hostdata *hostdata = shost_priv(instance);
int blocks = len / 128;
@@ -661,7 +593,7 @@ static inline int NCR5380_pread(struct Scsi_Host *instance, unsigned char *dst,
}
/**
- * NCR5380_write - pseudo DMA write
+ * generic_NCR5380_pwrite - pseudo DMA write
* @instance: adapter to read from
* @dst: buffer to read into
* @len: buffer length
@@ -670,7 +602,8 @@ static inline int NCR5380_pread(struct Scsi_Host *instance, unsigned char *dst,
* controller
*/
-static inline int NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *src, int len)
+static inline int generic_NCR5380_pwrite(struct Scsi_Host *instance,
+ unsigned char *src, int len)
{
struct NCR5380_hostdata *hostdata = shost_priv(instance);
int blocks = len / 128;
@@ -738,10 +671,15 @@ static inline int NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *src,
return 0;
}
-static int generic_NCR5380_dma_xfer_len(struct scsi_cmnd *cmd)
+static int generic_NCR5380_dma_xfer_len(struct Scsi_Host *instance,
+ struct scsi_cmnd *cmd)
{
+ struct NCR5380_hostdata *hostdata = shost_priv(instance);
int transfersize = cmd->transfersize;
+ if (hostdata->flags & FLAG_NO_PSEUDO_DMA)
+ return 0;
+
/* Limit transfers to 32K, for xx400 & xx406
* pseudoDMA that transfers in 128 bytes blocks.
*/
@@ -756,8 +694,6 @@ static int generic_NCR5380_dma_xfer_len(struct scsi_cmnd *cmd)
return transfersize;
}
-#endif /* PSEUDO_DMA */
-
/*
* Include the NCR5380 core code that we build our driver around
*/
@@ -773,7 +709,6 @@ static struct scsi_host_template driver_template = {
.queuecommand = generic_NCR5380_queue_command,
.eh_abort_handler = generic_NCR5380_abort,
.eh_bus_reset_handler = generic_NCR5380_bus_reset,
- .bios_param = NCR5380_BIOSPARAM,
.can_queue = 16,
.this_id = 7,
.sg_tablesize = SG_ALL,
diff --git a/drivers/scsi/g_NCR5380.h b/drivers/scsi/g_NCR5380.h
index 6f3d2ac4f185..595177428d76 100644
--- a/drivers/scsi/g_NCR5380.h
+++ b/drivers/scsi/g_NCR5380.h
@@ -14,13 +14,6 @@
#ifndef GENERIC_NCR5380_H
#define GENERIC_NCR5380_H
-#ifdef CONFIG_SCSI_GENERIC_NCR53C400
-#define BIOSPARAM
-#define NCR5380_BIOSPARAM generic_NCR5380_biosparam
-#else
-#define NCR5380_BIOSPARAM NULL
-#endif
-
#define __STRVAL(x) #x
#define STRVAL(x) __STRVAL(x)
@@ -30,12 +23,6 @@
#define NCR5380_map_type int
#define NCR5380_map_name port
-#ifdef CONFIG_SCSI_GENERIC_NCR53C400
-#define NCR5380_region_size 16
-#else
-#define NCR5380_region_size 8
-#endif
-
#define NCR5380_read(reg) \
inb(instance->io_port + (reg))
#define NCR5380_write(reg, value) \
@@ -55,7 +42,7 @@
#define NCR5380_map_name base
#define NCR53C400_mem_base 0x3880
#define NCR53C400_host_buffer 0x3900
-#define NCR5380_region_size 0x3a00
+#define NCR53C400_region_size 0x3a00
#define NCR5380_read(reg) \
readb(((struct NCR5380_hostdata *)shost_priv(instance))->iomem + \
@@ -66,6 +53,7 @@
#define NCR5380_implementation_fields \
void __iomem *iomem; \
+ resource_size_t iomem_size; \
int c400_ctl_status; \
int c400_blk_cnt; \
int c400_host_buf;
@@ -73,16 +61,18 @@
#endif
#define NCR5380_dma_xfer_len(instance, cmd, phase) \
- generic_NCR5380_dma_xfer_len(cmd)
+ generic_NCR5380_dma_xfer_len(instance, cmd)
+#define NCR5380_dma_recv_setup generic_NCR5380_pread
+#define NCR5380_dma_send_setup generic_NCR5380_pwrite
+#define NCR5380_dma_residual(instance) (0)
#define NCR5380_intr generic_NCR5380_intr
#define NCR5380_queue_command generic_NCR5380_queue_command
#define NCR5380_abort generic_NCR5380_abort
#define NCR5380_bus_reset generic_NCR5380_bus_reset
-#define NCR5380_pread generic_NCR5380_pread
-#define NCR5380_pwrite generic_NCR5380_pwrite
#define NCR5380_info generic_NCR5380_info
-#define NCR5380_show_info generic_NCR5380_show_info
+
+#define NCR5380_io_delay(x) udelay(x)
#define BOARD_NCR5380 0
#define BOARD_NCR53C400 1
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h
index 29e89f340b64..d7cab724f203 100644
--- a/drivers/scsi/hisi_sas/hisi_sas.h
+++ b/drivers/scsi/hisi_sas/hisi_sas.h
@@ -23,7 +23,7 @@
#include <scsi/sas_ata.h>
#include <scsi/libsas.h>
-#define DRV_VERSION "v1.3"
+#define DRV_VERSION "v1.4"
#define HISI_SAS_MAX_PHYS 9
#define HISI_SAS_MAX_QUEUES 32
@@ -133,6 +133,9 @@ struct hisi_sas_hw {
int (*hw_init)(struct hisi_hba *hisi_hba);
void (*setup_itct)(struct hisi_hba *hisi_hba,
struct hisi_sas_device *device);
+ int (*slot_index_alloc)(struct hisi_hba *hisi_hba, int *slot_idx,
+ struct domain_device *device);
+ struct hisi_sas_device *(*alloc_dev)(struct domain_device *device);
void (*sl_notify)(struct hisi_hba *hisi_hba, int phy_no);
int (*get_free_slot)(struct hisi_hba *hisi_hba, int *q, int *s);
void (*start_delivery)(struct hisi_hba *hisi_hba);
@@ -298,7 +301,7 @@ struct hisi_sas_command_table_stp {
u8 atapi_cdb[ATAPI_CDB_LEN];
};
-#define HISI_SAS_SGE_PAGE_CNT SCSI_MAX_SG_SEGMENTS
+#define HISI_SAS_SGE_PAGE_CNT SG_CHUNK_SIZE
struct hisi_sas_sge_page {
struct hisi_sas_sge sge[HISI_SAS_SGE_PAGE_CNT];
};
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 097ab4f27a6b..18dd5ea2c721 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -227,7 +227,11 @@ static int hisi_sas_task_prep(struct sas_task *task, struct hisi_hba *hisi_hba,
} else
n_elem = task->num_scatter;
- rc = hisi_sas_slot_index_alloc(hisi_hba, &slot_idx);
+ if (hisi_hba->hw->slot_index_alloc)
+ rc = hisi_hba->hw->slot_index_alloc(hisi_hba, &slot_idx,
+ device);
+ else
+ rc = hisi_sas_slot_index_alloc(hisi_hba, &slot_idx);
if (rc)
goto err_out;
rc = hisi_hba->hw->get_free_slot(hisi_hba, &dlvry_queue,
@@ -417,7 +421,10 @@ static int hisi_sas_dev_found(struct domain_device *device)
struct hisi_sas_device *sas_dev;
struct device *dev = &hisi_hba->pdev->dev;
- sas_dev = hisi_sas_alloc_dev(device);
+ if (hisi_hba->hw->alloc_dev)
+ sas_dev = hisi_hba->hw->alloc_dev(device);
+ else
+ sas_dev = hisi_sas_alloc_dev(device);
if (!sas_dev) {
dev_err(dev, "fail alloc dev: max support %d devices\n",
HISI_SAS_MAX_DEVICES);
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
index b7337476454b..bbe98ecea0bc 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
@@ -465,6 +465,62 @@ static u32 hisi_sas_phy_read32(struct hisi_hba *hisi_hba,
return readl(regs);
}
+/* This function needs to be protected from pre-emption. */
+static int
+slot_index_alloc_quirk_v2_hw(struct hisi_hba *hisi_hba, int *slot_idx,
+ struct domain_device *device)
+{
+ unsigned int index = 0;
+ void *bitmap = hisi_hba->slot_index_tags;
+ int sata_dev = dev_is_sata(device);
+
+ while (1) {
+ index = find_next_zero_bit(bitmap, hisi_hba->slot_index_count,
+ index);
+ if (index >= hisi_hba->slot_index_count)
+ return -SAS_QUEUE_FULL;
+ /*
+ * SAS IPTT bit0 should be 1
+ */
+ if (sata_dev || (index & 1))
+ break;
+ index++;
+ }
+
+ set_bit(index, bitmap);
+ *slot_idx = index;
+ return 0;
+}
+
+static struct
+hisi_sas_device *alloc_dev_quirk_v2_hw(struct domain_device *device)
+{
+ struct hisi_hba *hisi_hba = device->port->ha->lldd_ha;
+ struct hisi_sas_device *sas_dev = NULL;
+ int i, sata_dev = dev_is_sata(device);
+
+ spin_lock(&hisi_hba->lock);
+ for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) {
+ /*
+ * SATA device id bit0 should be 0
+ */
+ if (sata_dev && (i & 1))
+ continue;
+ if (hisi_hba->devices[i].dev_type == SAS_PHY_UNUSED) {
+ hisi_hba->devices[i].device_id = i;
+ sas_dev = &hisi_hba->devices[i];
+ sas_dev->dev_status = HISI_SAS_DEV_NORMAL;
+ sas_dev->dev_type = device->dev_type;
+ sas_dev->hisi_hba = hisi_hba;
+ sas_dev->sas_device = device;
+ break;
+ }
+ }
+ spin_unlock(&hisi_hba->lock);
+
+ return sas_dev;
+}
+
static void config_phy_opt_mode_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
{
u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
@@ -544,7 +600,7 @@ static void setup_itct_v2_hw(struct hisi_hba *hisi_hba,
}
qw0 |= ((1 << ITCT_HDR_VALID_OFF) |
- (device->max_linkrate << ITCT_HDR_MCR_OFF) |
+ (device->linkrate << ITCT_HDR_MCR_OFF) |
(1 << ITCT_HDR_VLN_OFF) |
(port->id << ITCT_HDR_PORT_ID_OFF));
itct->qw0 = cpu_to_le64(qw0);
@@ -554,10 +610,11 @@ static void setup_itct_v2_hw(struct hisi_hba *hisi_hba,
itct->sas_addr = __swab64(itct->sas_addr);
/* qw2 */
- itct->qw2 = cpu_to_le64((500ULL << ITCT_HDR_INLT_OFF) |
- (0xff00ULL << ITCT_HDR_BITLT_OFF) |
- (0xff00ULL << ITCT_HDR_MCTLT_OFF) |
- (0xff00ULL << ITCT_HDR_RTOLT_OFF));
+ if (!dev_is_sata(device))
+ itct->qw2 = cpu_to_le64((500ULL << ITCT_HDR_INLT_OFF) |
+ (0x1ULL << ITCT_HDR_BITLT_OFF) |
+ (0x32ULL << ITCT_HDR_MCTLT_OFF) |
+ (0x1ULL << ITCT_HDR_RTOLT_OFF));
}
static void free_device_v2_hw(struct hisi_hba *hisi_hba,
@@ -715,7 +772,7 @@ static void init_reg_v2_hw(struct hisi_hba *hisi_hba)
hisi_sas_write32(hisi_hba, HGC_SAS_TX_OPEN_FAIL_RETRY_CTRL, 0x7FF);
hisi_sas_write32(hisi_hba, OPENA_WT_CONTI_TIME, 0x1);
hisi_sas_write32(hisi_hba, I_T_NEXUS_LOSS_TIME, 0x1F4);
- hisi_sas_write32(hisi_hba, MAX_CON_TIME_LIMIT_TIME, 0x4E20);
+ hisi_sas_write32(hisi_hba, MAX_CON_TIME_LIMIT_TIME, 0x32);
hisi_sas_write32(hisi_hba, BUS_INACTIVE_LIMIT_TIME, 0x1);
hisi_sas_write32(hisi_hba, CFG_AGING_TIME, 0x1);
hisi_sas_write32(hisi_hba, HGC_ERR_STAT_EN, 0x1);
@@ -1993,22 +2050,23 @@ static irqreturn_t sata_int_v2_hw(int irq_no, void *p)
u32 ent_tmp, ent_msk, ent_int, port_id, link_rate, hard_phy_linkrate;
irqreturn_t res = IRQ_HANDLED;
u8 attached_sas_addr[SAS_ADDR_SIZE] = {0};
- int phy_no;
+ int phy_no, offset;
phy_no = sas_phy->id;
initial_fis = &hisi_hba->initial_fis[phy_no];
fis = &initial_fis->fis;
- ent_msk = hisi_sas_read32(hisi_hba, ENT_INT_SRC_MSK1);
- hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, ent_msk | 1 << phy_no);
+ offset = 4 * (phy_no / 4);
+ ent_msk = hisi_sas_read32(hisi_hba, ENT_INT_SRC_MSK1 + offset);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1 + offset,
+ ent_msk | 1 << ((phy_no % 4) * 8));
- ent_int = hisi_sas_read32(hisi_hba, ENT_INT_SRC1);
- ent_tmp = ent_int;
+ ent_int = hisi_sas_read32(hisi_hba, ENT_INT_SRC1 + offset);
+ ent_tmp = ent_int & (1 << (ENT_INT_SRC1_D2H_FIS_CH1_OFF *
+ (phy_no % 4)));
ent_int >>= ENT_INT_SRC1_D2H_FIS_CH1_OFF * (phy_no % 4);
if ((ent_int & ENT_INT_SRC1_D2H_FIS_CH0_MSK) == 0) {
dev_warn(dev, "sata int: phy%d did not receive FIS\n", phy_no);
- hisi_sas_write32(hisi_hba, ENT_INT_SRC1, ent_tmp);
- hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, ent_msk);
res = IRQ_NONE;
goto end;
}
@@ -2056,8 +2114,8 @@ static irqreturn_t sata_int_v2_hw(int irq_no, void *p)
queue_work(hisi_hba->wq, &phy->phyup_ws);
end:
- hisi_sas_write32(hisi_hba, ENT_INT_SRC1, ent_tmp);
- hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, ent_msk);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC1 + offset, ent_tmp);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1 + offset, ent_msk);
return res;
}
@@ -2165,6 +2223,8 @@ static int hisi_sas_v2_init(struct hisi_hba *hisi_hba)
static const struct hisi_sas_hw hisi_sas_v2_hw = {
.hw_init = hisi_sas_v2_init,
.setup_itct = setup_itct_v2_hw,
+ .slot_index_alloc = slot_index_alloc_quirk_v2_hw,
+ .alloc_dev = alloc_dev_quirk_v2_hw,
.sl_notify = sl_notify_v2_hw,
.get_wideport_bitmap = get_wideport_bitmap_v2_hw,
.free_device = free_device_v2_hw,
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 5be944c8b71c..ff8dcd5b0631 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -60,7 +60,7 @@
* HPSA_DRIVER_VERSION must be 3 byte values (0-255) separated by '.'
* with an optional trailing '-' followed by a byte value (0-255).
*/
-#define HPSA_DRIVER_VERSION "3.4.14-0"
+#define HPSA_DRIVER_VERSION "3.4.16-0"
#define DRIVER_NAME "HP HPSA Driver (v " HPSA_DRIVER_VERSION ")"
#define HPSA "hpsa"
@@ -294,6 +294,9 @@ static void hpsa_disable_rld_caching(struct ctlr_info *h);
static inline int hpsa_scsi_do_report_phys_luns(struct ctlr_info *h,
struct ReportExtendedLUNdata *buf, int bufsize);
static int hpsa_luns_changed(struct ctlr_info *h);
+static bool hpsa_cmd_dev_match(struct ctlr_info *h, struct CommandList *c,
+ struct hpsa_scsi_dev_t *dev,
+ unsigned char *scsi3addr);
static inline struct ctlr_info *sdev_to_hba(struct scsi_device *sdev)
{
@@ -728,6 +731,29 @@ static ssize_t unique_id_show(struct device *dev,
sn[12], sn[13], sn[14], sn[15]);
}
+static ssize_t sas_address_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ctlr_info *h;
+ struct scsi_device *sdev;
+ struct hpsa_scsi_dev_t *hdev;
+ unsigned long flags;
+ u64 sas_address;
+
+ sdev = to_scsi_device(dev);
+ h = sdev_to_hba(sdev);
+ spin_lock_irqsave(&h->lock, flags);
+ hdev = sdev->hostdata;
+ if (!hdev || is_logical_device(hdev) || !hdev->expose_device) {
+ spin_unlock_irqrestore(&h->lock, flags);
+ return -ENODEV;
+ }
+ sas_address = hdev->sas_address;
+ spin_unlock_irqrestore(&h->lock, flags);
+
+ return snprintf(buf, PAGE_SIZE, "0x%016llx\n", sas_address);
+}
+
static ssize_t host_show_hp_ssd_smart_path_enabled(struct device *dev,
struct device_attribute *attr, char *buf)
{
@@ -840,6 +866,7 @@ static DEVICE_ATTR(raid_level, S_IRUGO, raid_level_show, NULL);
static DEVICE_ATTR(lunid, S_IRUGO, lunid_show, NULL);
static DEVICE_ATTR(unique_id, S_IRUGO, unique_id_show, NULL);
static DEVICE_ATTR(rescan, S_IWUSR, NULL, host_store_rescan);
+static DEVICE_ATTR(sas_address, S_IRUGO, sas_address_show, NULL);
static DEVICE_ATTR(hp_ssd_smart_path_enabled, S_IRUGO,
host_show_hp_ssd_smart_path_enabled, NULL);
static DEVICE_ATTR(path_info, S_IRUGO, path_info_show, NULL);
@@ -865,6 +892,7 @@ static struct device_attribute *hpsa_sdev_attrs[] = {
&dev_attr_unique_id,
&dev_attr_hp_ssd_smart_path_enabled,
&dev_attr_path_info,
+ &dev_attr_sas_address,
NULL,
};
@@ -1637,9 +1665,8 @@ static void hpsa_figure_phys_disk_ptrs(struct ctlr_info *h,
for (j = 0; j < ndevices; j++) {
if (dev[j] == NULL)
continue;
- if (dev[j]->devtype != TYPE_DISK)
- continue;
- if (dev[j]->devtype != TYPE_ZBC)
+ if (dev[j]->devtype != TYPE_DISK &&
+ dev[j]->devtype != TYPE_ZBC)
continue;
if (is_logical_device(dev[j]))
continue;
@@ -1684,9 +1711,8 @@ static void hpsa_update_log_drive_phys_drive_ptrs(struct ctlr_info *h,
for (i = 0; i < ndevices; i++) {
if (dev[i] == NULL)
continue;
- if (dev[i]->devtype != TYPE_DISK)
- continue;
- if (dev[i]->devtype != TYPE_ZBC)
+ if (dev[i]->devtype != TYPE_DISK &&
+ dev[i]->devtype != TYPE_ZBC)
continue;
if (!is_logical_device(dev[i]))
continue;
@@ -1720,6 +1746,51 @@ static int hpsa_add_device(struct ctlr_info *h, struct hpsa_scsi_dev_t *device)
return rc;
}
+static int hpsa_find_outstanding_commands_for_dev(struct ctlr_info *h,
+ struct hpsa_scsi_dev_t *dev)
+{
+ int i;
+ int count = 0;
+
+ for (i = 0; i < h->nr_cmds; i++) {
+ struct CommandList *c = h->cmd_pool + i;
+ int refcount = atomic_inc_return(&c->refcount);
+
+ if (refcount > 1 && hpsa_cmd_dev_match(h, c, dev,
+ dev->scsi3addr)) {
+ unsigned long flags;
+
+ spin_lock_irqsave(&h->lock, flags); /* Implied MB */
+ if (!hpsa_is_cmd_idle(c))
+ ++count;
+ spin_unlock_irqrestore(&h->lock, flags);
+ }
+
+ cmd_free(h, c);
+ }
+
+ return count;
+}
+
+static void hpsa_wait_for_outstanding_commands_for_dev(struct ctlr_info *h,
+ struct hpsa_scsi_dev_t *device)
+{
+ int cmds = 0;
+ int waits = 0;
+
+ while (1) {
+ cmds = hpsa_find_outstanding_commands_for_dev(h, device);
+ if (cmds == 0)
+ break;
+ if (++waits > 20)
+ break;
+ dev_warn(&h->pdev->dev,
+ "%s: removing device with %d outstanding commands!\n",
+ __func__, cmds);
+ msleep(1000);
+ }
+}
+
static void hpsa_remove_device(struct ctlr_info *h,
struct hpsa_scsi_dev_t *device)
{
@@ -1743,8 +1814,13 @@ static void hpsa_remove_device(struct ctlr_info *h,
hpsa_show_dev_msg(KERN_WARNING, h, device,
"didn't find device for removal.");
}
- } else /* HBA */
+ } else { /* HBA */
+
+ device->removed = 1;
+ hpsa_wait_for_outstanding_commands_for_dev(h, device);
+
hpsa_remove_sas_device(device);
+ }
}
static void adjust_hpsa_scsi_table(struct ctlr_info *h,
@@ -2146,7 +2222,8 @@ static void hpsa_unmap_sg_chain_block(struct ctlr_info *h,
static int handle_ioaccel_mode2_error(struct ctlr_info *h,
struct CommandList *c,
struct scsi_cmnd *cmd,
- struct io_accel2_cmd *c2)
+ struct io_accel2_cmd *c2,
+ struct hpsa_scsi_dev_t *dev)
{
int data_len;
int retry = 0;
@@ -2210,8 +2287,27 @@ static int handle_ioaccel_mode2_error(struct ctlr_info *h,
case IOACCEL2_STATUS_SR_NO_PATH_TO_DEVICE:
case IOACCEL2_STATUS_SR_INVALID_DEVICE:
case IOACCEL2_STATUS_SR_IOACCEL_DISABLED:
- /* We will get an event from ctlr to trigger rescan */
- retry = 1;
+ /*
+ * Did an HBA disk disappear? We will eventually
+ * get a state change event from the controller but
+ * in the meantime, we need to tell the OS that the
+ * HBA disk is no longer there and stop I/O
+ * from going down. This allows the potential re-insert
+ * of the disk to get the same device node.
+ */
+ if (dev->physical_device && dev->expose_device) {
+ cmd->result = DID_NO_CONNECT << 16;
+ dev->removed = 1;
+ h->drv_req_rescan = 1;
+ dev_warn(&h->pdev->dev,
+ "%s: device is gone!\n", __func__);
+ } else
+ /*
+ * Retry by sending down the RAID path.
+ * We will get an event from ctlr to
+ * trigger rescan regardless.
+ */
+ retry = 1;
break;
default:
retry = 1;
@@ -2335,13 +2431,15 @@ static void process_ioaccel2_completion(struct ctlr_info *h,
c2->error_data.serv_response ==
IOACCEL2_SERV_RESPONSE_FAILURE) {
if (c2->error_data.status ==
- IOACCEL2_STATUS_SR_IOACCEL_DISABLED)
+ IOACCEL2_STATUS_SR_IOACCEL_DISABLED) {
dev->offload_enabled = 0;
+ dev->offload_to_be_enabled = 0;
+ }
return hpsa_retry_cmd(h, c);
}
- if (handle_ioaccel_mode2_error(h, c, cmd, c2))
+ if (handle_ioaccel_mode2_error(h, c, cmd, c2, dev))
return hpsa_retry_cmd(h, c);
return hpsa_cmd_free_and_done(h, c, cmd);
@@ -2806,7 +2904,7 @@ static int hpsa_scsi_do_inquiry(struct ctlr_info *h, unsigned char *scsi3addr,
goto out;
}
rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
- PCI_DMA_FROMDEVICE, NO_TIMEOUT);
+ PCI_DMA_FROMDEVICE, DEFAULT_TIMEOUT);
if (rc)
goto out;
ei = c->err_info;
@@ -2832,7 +2930,7 @@ static int hpsa_send_reset(struct ctlr_info *h, unsigned char *scsi3addr,
/* fill_cmd can't fail here, no data buffer to map. */
(void) fill_cmd(c, reset_type, h, NULL, 0, 0,
scsi3addr, TYPE_MSG);
- rc = hpsa_scsi_do_simple_cmd(h, c, reply_queue, NO_TIMEOUT);
+ rc = hpsa_scsi_do_simple_cmd(h, c, reply_queue, DEFAULT_TIMEOUT);
if (rc) {
dev_warn(&h->pdev->dev, "Failed to send reset command\n");
goto out;
@@ -3080,7 +3178,7 @@ static int hpsa_get_raid_map(struct ctlr_info *h,
return -1;
}
rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
- PCI_DMA_FROMDEVICE, NO_TIMEOUT);
+ PCI_DMA_FROMDEVICE, DEFAULT_TIMEOUT);
if (rc)
goto out;
ei = c->err_info;
@@ -3123,7 +3221,7 @@ static int hpsa_bmic_sense_subsystem_information(struct ctlr_info *h,
c->Request.CDB[9] = (bmic_device_index >> 8) & 0xff;
rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
- PCI_DMA_FROMDEVICE, NO_TIMEOUT);
+ PCI_DMA_FROMDEVICE, DEFAULT_TIMEOUT);
if (rc)
goto out;
ei = c->err_info;
@@ -3151,7 +3249,7 @@ static int hpsa_bmic_id_controller(struct ctlr_info *h,
goto out;
rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
- PCI_DMA_FROMDEVICE, NO_TIMEOUT);
+ PCI_DMA_FROMDEVICE, DEFAULT_TIMEOUT);
if (rc)
goto out;
ei = c->err_info;
@@ -3182,7 +3280,7 @@ static int hpsa_bmic_id_physical_device(struct ctlr_info *h,
c->Request.CDB[9] = (bmic_device_index >> 8) & 0xff;
hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE,
- NO_TIMEOUT);
+ DEFAULT_TIMEOUT);
ei = c->err_info;
if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) {
hpsa_scsi_interpret_error(h, c);
@@ -3250,7 +3348,7 @@ static void hpsa_get_enclosure_info(struct ctlr_info *h,
c->Request.CDB[5] = 0;
rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE,
- NO_TIMEOUT);
+ DEFAULT_TIMEOUT);
if (rc)
goto out;
@@ -3462,7 +3560,7 @@ static int hpsa_scsi_do_report_luns(struct ctlr_info *h, int logical,
if (extended_response)
c->Request.CDB[1] = extended_response;
rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
- PCI_DMA_FROMDEVICE, NO_TIMEOUT);
+ PCI_DMA_FROMDEVICE, DEFAULT_TIMEOUT);
if (rc)
goto out;
ei = c->err_info;
@@ -3569,7 +3667,8 @@ static int hpsa_volume_offline(struct ctlr_info *h,
c = cmd_alloc(h);
(void) fill_cmd(c, TEST_UNIT_READY, h, NULL, 0, 0, scsi3addr, TYPE_CMD);
- rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, NO_TIMEOUT);
+ rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE,
+ DEFAULT_TIMEOUT);
if (rc) {
cmd_free(h, c);
return 0;
@@ -3644,7 +3743,8 @@ static int hpsa_device_supports_aborts(struct ctlr_info *h,
c = cmd_alloc(h);
(void) fill_cmd(c, HPSA_ABORT_MSG, h, &tag, 0, 0, scsi3addr, TYPE_MSG);
- (void) hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, NO_TIMEOUT);
+ (void) hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE,
+ DEFAULT_TIMEOUT);
/* no unmap needed here because no data xfer. */
ei = c->err_info;
switch (ei->CommandStatus) {
@@ -5234,6 +5334,12 @@ static int hpsa_scsi_queue_command(struct Scsi_Host *sh, struct scsi_cmnd *cmd)
dev = cmd->device->hostdata;
if (!dev) {
+ cmd->result = NOT_READY << 16; /* host byte */
+ cmd->scsi_done(cmd);
+ return 0;
+ }
+
+ if (dev->removed) {
cmd->result = DID_NO_CONNECT << 16;
cmd->scsi_done(cmd);
return 0;
@@ -5414,7 +5520,7 @@ static int hpsa_send_test_unit_ready(struct ctlr_info *h,
/* Send the Test Unit Ready, fill_cmd can't fail, no mapping */
(void) fill_cmd(c, TEST_UNIT_READY, h,
NULL, 0, 0, lunaddr, TYPE_CMD);
- rc = hpsa_scsi_do_simple_cmd(h, c, reply_queue, NO_TIMEOUT);
+ rc = hpsa_scsi_do_simple_cmd(h, c, reply_queue, DEFAULT_TIMEOUT);
if (rc)
return rc;
/* no unmap needed here because no data xfer. */
@@ -5638,7 +5744,7 @@ static int hpsa_send_abort(struct ctlr_info *h, unsigned char *scsi3addr,
0, 0, scsi3addr, TYPE_MSG);
if (h->needs_abort_tags_swizzled)
swizzle_abort_tag(&c->Request.CDB[4]);
- (void) hpsa_scsi_do_simple_cmd(h, c, reply_queue, NO_TIMEOUT);
+ (void) hpsa_scsi_do_simple_cmd(h, c, reply_queue, DEFAULT_TIMEOUT);
hpsa_get_tag(h, abort, &taglower, &tagupper);
dev_dbg(&h->pdev->dev, "%s: Tag:0x%08x:%08x: do_simple_cmd(abort) completed.\n",
__func__, tagupper, taglower);
@@ -5803,7 +5909,7 @@ static int hpsa_send_abort_ioaccel2(struct ctlr_info *h,
c = cmd_alloc(h);
setup_ioaccel2_abort_cmd(c, h, abort, reply_queue);
c2 = &h->ioaccel2_cmd_pool[c->cmdindex];
- (void) hpsa_scsi_do_simple_cmd(h, c, reply_queue, NO_TIMEOUT);
+ (void) hpsa_scsi_do_simple_cmd(h, c, reply_queue, DEFAULT_TIMEOUT);
hpsa_get_tag(h, abort, &taglower, &tagupper);
dev_dbg(&h->pdev->dev,
"%s: Tag:0x%08x:%08x: do_simple_cmd(ioaccel2 abort) completed.\n",
@@ -6348,7 +6454,8 @@ static int hpsa_passthru_ioctl(struct ctlr_info *h, void __user *argp)
c->SG[0].Len = cpu_to_le32(iocommand.buf_size);
c->SG[0].Ext = cpu_to_le32(HPSA_SG_LAST); /* not chaining */
}
- rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, NO_TIMEOUT);
+ rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE,
+ DEFAULT_TIMEOUT);
if (iocommand.buf_size > 0)
hpsa_pci_unmap(h->pdev, c, 1, PCI_DMA_BIDIRECTIONAL);
check_ioctl_unit_attention(h, c);
@@ -6480,7 +6587,8 @@ static int hpsa_big_passthru_ioctl(struct ctlr_info *h, void __user *argp)
}
c->SG[--i].Ext = cpu_to_le32(HPSA_SG_LAST);
}
- status = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, NO_TIMEOUT);
+ status = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE,
+ DEFAULT_TIMEOUT);
if (sg_used)
hpsa_pci_unmap(h->pdev, c, sg_used, PCI_DMA_BIDIRECTIONAL);
check_ioctl_unit_attention(h, c);
@@ -8254,8 +8362,10 @@ static void hpsa_ack_ctlr_events(struct ctlr_info *h)
event_type = "configuration change";
/* Stop sending new RAID offload reqs via the IO accelerator */
scsi_block_requests(h->scsi_host);
- for (i = 0; i < h->ndevices; i++)
+ for (i = 0; i < h->ndevices; i++) {
h->dev[i]->offload_enabled = 0;
+ h->dev[i]->offload_to_be_enabled = 0;
+ }
hpsa_drain_accel_commands(h);
/* Set 'accelerator path config change' bit */
dev_warn(&h->pdev->dev,
@@ -8541,11 +8651,6 @@ reinit_after_soft_reset:
if (rc)
goto clean6; /* sg, cmd, irq, shost, pci, lu, aer/h */
- /* hook into SCSI subsystem */
- rc = hpsa_scsi_add_host(h);
- if (rc)
- goto clean7; /* perf, sg, cmd, irq, shost, pci, lu, aer/h */
-
/* create the resubmit workqueue */
h->rescan_ctlr_wq = hpsa_create_controller_wq(h, "rescan");
if (!h->rescan_ctlr_wq) {
@@ -8642,6 +8747,11 @@ reinit_after_soft_reset:
dev_info(&h->pdev->dev,
"Can't track change to report lun data\n");
+ /* hook into SCSI subsystem */
+ rc = hpsa_scsi_add_host(h);
+ if (rc)
+ goto clean7; /* perf, sg, cmd, irq, shost, pci, lu, aer/h */
+
/* Monitor the controller for firmware lockups */
h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL;
INIT_DELAYED_WORK(&h->monitor_ctlr_work, hpsa_monitor_ctlr_worker);
@@ -8703,7 +8813,7 @@ static void hpsa_flush_cache(struct ctlr_info *h)
goto out;
}
rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
- PCI_DMA_TODEVICE, NO_TIMEOUT);
+ PCI_DMA_TODEVICE, DEFAULT_TIMEOUT);
if (rc)
goto out;
if (c->err_info->CommandStatus != 0)
@@ -8742,7 +8852,7 @@ static void hpsa_disable_rld_caching(struct ctlr_info *h)
goto errout;
rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
- PCI_DMA_FROMDEVICE, NO_TIMEOUT);
+ PCI_DMA_FROMDEVICE, DEFAULT_TIMEOUT);
if ((rc != 0) || (c->err_info->CommandStatus != 0))
goto errout;
@@ -8754,7 +8864,7 @@ static void hpsa_disable_rld_caching(struct ctlr_info *h)
goto errout;
rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
- PCI_DMA_TODEVICE, NO_TIMEOUT);
+ PCI_DMA_TODEVICE, DEFAULT_TIMEOUT);
if ((rc != 0) || (c->err_info->CommandStatus != 0))
goto errout;
@@ -8764,7 +8874,7 @@ static void hpsa_disable_rld_caching(struct ctlr_info *h)
goto errout;
rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
- PCI_DMA_FROMDEVICE, NO_TIMEOUT);
+ PCI_DMA_FROMDEVICE, DEFAULT_TIMEOUT);
if ((rc != 0) || (c->err_info->CommandStatus != 0))
goto errout;
@@ -9602,6 +9712,7 @@ hpsa_sas_get_linkerrors(struct sas_phy *phy)
static int
hpsa_sas_get_enclosure_identifier(struct sas_rphy *rphy, u64 *identifier)
{
+ *identifier = 0;
return 0;
}
diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h
index d06bb7417e36..a1487e67f7a1 100644
--- a/drivers/scsi/hpsa.h
+++ b/drivers/scsi/hpsa.h
@@ -63,6 +63,7 @@ struct hpsa_scsi_dev_t {
unsigned char scsi3addr[8]; /* as presented to the HW */
u8 physical_device : 1;
u8 expose_device;
+ u8 removed : 1; /* device is marked for death */
#define RAID_CTLR_LUNID "\0\0\0\0\0\0\0\0"
unsigned char device_id[16]; /* from inquiry pg. 0x83 */
u64 sas_address;
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 6bffd91b973a..c051694bfcb0 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -2127,7 +2127,7 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
struct iscsi_conn *conn;
struct iscsi_task *task;
struct iscsi_tm *hdr;
- int rc, age;
+ int age;
cls_session = starget_to_session(scsi_target(sc->device));
session = cls_session->dd_data;
@@ -2188,10 +2188,8 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
hdr = &conn->tmhdr;
iscsi_prep_abort_task_pdu(task, hdr);
- if (iscsi_exec_task_mgmt_fn(conn, hdr, age, session->abort_timeout)) {
- rc = FAILED;
+ if (iscsi_exec_task_mgmt_fn(conn, hdr, age, session->abort_timeout))
goto failed;
- }
switch (conn->tmf_state) {
case TMF_SUCCESS:
@@ -2423,7 +2421,7 @@ static void iscsi_prep_tgt_reset_pdu(struct scsi_cmnd *sc, struct iscsi_tm *hdr)
*
* This will attempt to send a warm target reset.
*/
-int iscsi_eh_target_reset(struct scsi_cmnd *sc)
+static int iscsi_eh_target_reset(struct scsi_cmnd *sc)
{
struct iscsi_cls_session *cls_session;
struct iscsi_session *session;
@@ -2495,7 +2493,6 @@ done:
mutex_unlock(&session->eh_mutex);
return rc;
}
-EXPORT_SYMBOL_GPL(iscsi_eh_target_reset);
/**
* iscsi_eh_recover_target - reset target and possibly the session
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index 90a3ca5a4dbd..d5bd420595c1 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -1,7 +1,7 @@
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2015 Emulex. All rights reserved. *
+ * Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
@@ -694,6 +694,7 @@ struct lpfc_hba {
uint8_t wwnn[8];
uint8_t wwpn[8];
uint32_t RandomData[7];
+ uint32_t fcp_embed_io;
/* HBA Config Parameters */
uint32_t cfg_ack0;
@@ -757,7 +758,6 @@ struct lpfc_hba {
uint32_t cfg_fdmi_on;
#define LPFC_FDMI_NO_SUPPORT 0 /* FDMI not supported */
#define LPFC_FDMI_SUPPORT 1 /* FDMI supported? */
-#define LPFC_FDMI_SMART_SAN 2 /* SmartSAN supported */
uint32_t cfg_enable_SmartSAN;
lpfc_vpd_t vpd; /* vital product data */
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 343ae9482891..cfec2eca4dd3 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -1,7 +1,7 @@
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2015 Emulex. All rights reserved. *
+ * Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
@@ -4584,15 +4584,14 @@ LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality");
# lpfc_fdmi_on: Controls FDMI support.
# 0 No FDMI support (default)
# 1 Traditional FDMI support
-# 2 Smart SAN support
-# If lpfc_enable_SmartSAN is set 1, the driver sets lpfc_fdmi_on to value 2
-# overwriting the current value. If lpfc_enable_SmartSAN is set 0, the
-# driver uses the current value of lpfc_fdmi_on provided it has value 0 or 1.
-# A value of 2 with lpfc_enable_SmartSAN set to 0 causes the driver to
-# set lpfc_fdmi_on back to 1.
-# Value range [0,2]. Default value is 0.
+# Traditional FDMI support means the driver will assume FDMI-2 support;
+# however, if that fails, it will fallback to FDMI-1.
+# If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on.
+# If lpfc_enable_SmartSAN is set 0, the driver uses the current value of
+# lpfc_fdmi_on.
+# Value range [0,1]. Default value is 0.
*/
-LPFC_ATTR_R(fdmi_on, 0, 0, 2, "Enable FDMI support");
+LPFC_ATTR_R(fdmi_on, 0, 0, 1, "Enable FDMI support");
/*
# Specifies the maximum number of ELS cmds we can have outstanding (for
@@ -5150,7 +5149,6 @@ lpfc_free_sysfs_attr(struct lpfc_vport *vport)
sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
}
-
/*
* Dynamic FC Host Attributes Support
*/
@@ -5857,14 +5855,6 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
else
phba->cfg_poll = lpfc_poll;
- /* Ensure fdmi_on and enable_SmartSAN don't conflict */
- if (phba->cfg_enable_SmartSAN) {
- phba->cfg_fdmi_on = LPFC_FDMI_SMART_SAN;
- } else {
- if (phba->cfg_fdmi_on == LPFC_FDMI_SMART_SAN)
- phba->cfg_fdmi_on = LPFC_FDMI_SUPPORT;
- }
-
phba->cfg_soft_wwnn = 0L;
phba->cfg_soft_wwpn = 0L;
lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt);
diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c
index 79e261d2a0c8..a38816e96654 100644
--- a/drivers/scsi/lpfc/lpfc_ct.c
+++ b/drivers/scsi/lpfc/lpfc_ct.c
@@ -1,7 +1,7 @@
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2015 Emulex. All rights reserved. *
+ * Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* *
@@ -2322,7 +2322,7 @@ lpfc_fdmi_smart_attr_version(struct lpfc_vport *vport,
ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
memset(ae, 0, 256);
- strncpy(ae->un.AttrString, "Smart SAN Version 1.0",
+ strncpy(ae->un.AttrString, "Smart SAN Version 2.0",
sizeof(ae->un.AttrString));
len = strnlen(ae->un.AttrString,
sizeof(ae->un.AttrString));
@@ -2397,7 +2397,7 @@ lpfc_fdmi_smart_attr_security(struct lpfc_vport *vport,
uint32_t size;
ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
- ae->un.AttrInt = cpu_to_be32(0);
+ ae->un.AttrInt = cpu_to_be32(1);
size = FOURBYTES + sizeof(uint32_t);
ad->AttrLen = cpu_to_be16(size);
ad->AttrType = cpu_to_be16(RPRT_SMART_SECURITY);
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index 7f5abb8f52bc..0498f5760d2b 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -1,7 +1,7 @@
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2015 Emulex. All rights reserved. *
+ * Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
@@ -690,16 +690,17 @@ lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
if (fabric_param_changed) {
/* Reset FDMI attribute masks based on config parameter */
- if (phba->cfg_fdmi_on == LPFC_FDMI_NO_SUPPORT) {
- vport->fdmi_hba_mask = 0;
- vport->fdmi_port_mask = 0;
- } else {
+ if (phba->cfg_enable_SmartSAN ||
+ (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
/* Setup appropriate attribute masks */
vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
- if (phba->cfg_fdmi_on == LPFC_FDMI_SMART_SAN)
+ if (phba->cfg_enable_SmartSAN)
vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
else
vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
+ } else {
+ vport->fdmi_hba_mask = 0;
+ vport->fdmi_port_mask = 0;
}
}
@@ -1069,7 +1070,10 @@ stop_rr_fcf_flogi:
lpfc_sli4_unreg_all_rpis(vport);
}
}
- lpfc_issue_reg_vfi(vport);
+
+ /* Do not register VFI if the driver aborted FLOGI */
+ if (!lpfc_error_lost_link(irsp))
+ lpfc_issue_reg_vfi(vport);
lpfc_nlp_put(ndlp);
goto out;
}
@@ -4705,6 +4709,144 @@ lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc *desc,
desc->length = cpu_to_be32(sizeof(desc->info));
}
+void
+lpfc_rdp_res_bbc_desc(struct fc_rdp_bbc_desc *desc, READ_LNK_VAR *stat,
+ struct lpfc_vport *vport)
+{
+ desc->tag = cpu_to_be32(RDP_BBC_DESC_TAG);
+
+ desc->bbc_info.port_bbc = cpu_to_be32(
+ vport->fc_sparam.cmn.bbCreditMsb |
+ vport->fc_sparam.cmn.bbCreditlsb << 8);
+ if (vport->phba->fc_topology != LPFC_TOPOLOGY_LOOP)
+ desc->bbc_info.attached_port_bbc = cpu_to_be32(
+ vport->phba->fc_fabparam.cmn.bbCreditMsb |
+ vport->phba->fc_fabparam.cmn.bbCreditlsb << 8);
+ else
+ desc->bbc_info.attached_port_bbc = 0;
+
+ desc->bbc_info.rtt = 0;
+ desc->length = cpu_to_be32(sizeof(desc->bbc_info));
+}
+
+void
+lpfc_rdp_res_oed_temp_desc(struct fc_rdp_oed_sfp_desc *desc, uint8_t *page_a2)
+{
+ uint32_t flags;
+
+ desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
+
+ desc->oed_info.hi_alarm =
+ cpu_to_be16(page_a2[SSF_TEMP_HIGH_ALARM]);
+ desc->oed_info.lo_alarm = cpu_to_be16(page_a2[SSF_TEMP_LOW_ALARM]);
+ desc->oed_info.hi_warning =
+ cpu_to_be16(page_a2[SSF_TEMP_HIGH_WARNING]);
+ desc->oed_info.lo_warning =
+ cpu_to_be16(page_a2[SSF_TEMP_LOW_WARNING]);
+ flags = 0xf; /* All four are valid */
+ flags |= ((0xf & RDP_OED_TEMPERATURE) << RDP_OED_TYPE_SHIFT);
+ desc->oed_info.function_flags = cpu_to_be32(flags);
+ desc->length = cpu_to_be32(sizeof(desc->oed_info));
+}
+
+void
+lpfc_rdp_res_oed_voltage_desc(struct fc_rdp_oed_sfp_desc *desc,
+ uint8_t *page_a2)
+{
+ uint32_t flags;
+
+ desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
+
+ desc->oed_info.hi_alarm =
+ cpu_to_be16(page_a2[SSF_VOLTAGE_HIGH_ALARM]);
+ desc->oed_info.lo_alarm = cpu_to_be16(page_a2[SSF_VOLTAGE_LOW_ALARM]);
+ desc->oed_info.hi_warning =
+ cpu_to_be16(page_a2[SSF_VOLTAGE_HIGH_WARNING]);
+ desc->oed_info.lo_warning =
+ cpu_to_be16(page_a2[SSF_VOLTAGE_LOW_WARNING]);
+ flags = 0xf; /* All four are valid */
+ flags |= ((0xf & RDP_OED_VOLTAGE) << RDP_OED_TYPE_SHIFT);
+ desc->oed_info.function_flags = cpu_to_be32(flags);
+ desc->length = cpu_to_be32(sizeof(desc->oed_info));
+}
+
+void
+lpfc_rdp_res_oed_txbias_desc(struct fc_rdp_oed_sfp_desc *desc,
+ uint8_t *page_a2)
+{
+ uint32_t flags;
+
+ desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
+
+ desc->oed_info.hi_alarm =
+ cpu_to_be16(page_a2[SSF_BIAS_HIGH_ALARM]);
+ desc->oed_info.lo_alarm = cpu_to_be16(page_a2[SSF_BIAS_LOW_ALARM]);
+ desc->oed_info.hi_warning =
+ cpu_to_be16(page_a2[SSF_BIAS_HIGH_WARNING]);
+ desc->oed_info.lo_warning =
+ cpu_to_be16(page_a2[SSF_BIAS_LOW_WARNING]);
+ flags = 0xf; /* All four are valid */
+ flags |= ((0xf & RDP_OED_TXBIAS) << RDP_OED_TYPE_SHIFT);
+ desc->oed_info.function_flags = cpu_to_be32(flags);
+ desc->length = cpu_to_be32(sizeof(desc->oed_info));
+}
+
+void
+lpfc_rdp_res_oed_txpower_desc(struct fc_rdp_oed_sfp_desc *desc,
+ uint8_t *page_a2)
+{
+ uint32_t flags;
+
+ desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
+
+ desc->oed_info.hi_alarm =
+ cpu_to_be16(page_a2[SSF_TXPOWER_HIGH_ALARM]);
+ desc->oed_info.lo_alarm = cpu_to_be16(page_a2[SSF_TXPOWER_LOW_ALARM]);
+ desc->oed_info.hi_warning =
+ cpu_to_be16(page_a2[SSF_TXPOWER_HIGH_WARNING]);
+ desc->oed_info.lo_warning =
+ cpu_to_be16(page_a2[SSF_TXPOWER_LOW_WARNING]);
+ flags = 0xf; /* All four are valid */
+ flags |= ((0xf & RDP_OED_TXPOWER) << RDP_OED_TYPE_SHIFT);
+ desc->oed_info.function_flags = cpu_to_be32(flags);
+ desc->length = cpu_to_be32(sizeof(desc->oed_info));
+}
+
+
+void
+lpfc_rdp_res_oed_rxpower_desc(struct fc_rdp_oed_sfp_desc *desc,
+ uint8_t *page_a2)
+{
+ uint32_t flags;
+
+ desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
+
+ desc->oed_info.hi_alarm =
+ cpu_to_be16(page_a2[SSF_RXPOWER_HIGH_ALARM]);
+ desc->oed_info.lo_alarm = cpu_to_be16(page_a2[SSF_RXPOWER_LOW_ALARM]);
+ desc->oed_info.hi_warning =
+ cpu_to_be16(page_a2[SSF_RXPOWER_HIGH_WARNING]);
+ desc->oed_info.lo_warning =
+ cpu_to_be16(page_a2[SSF_RXPOWER_LOW_WARNING]);
+ flags = 0xf; /* All four are valid */
+ flags |= ((0xf & RDP_OED_RXPOWER) << RDP_OED_TYPE_SHIFT);
+ desc->oed_info.function_flags = cpu_to_be32(flags);
+ desc->length = cpu_to_be32(sizeof(desc->oed_info));
+}
+
+void
+lpfc_rdp_res_opd_desc(struct fc_rdp_opd_sfp_desc *desc,
+ uint8_t *page_a0, struct lpfc_vport *vport)
+{
+ desc->tag = cpu_to_be32(RDP_OPD_DESC_TAG);
+ memcpy(desc->opd_info.vendor_name, &page_a0[SSF_VENDOR_NAME], 16);
+ memcpy(desc->opd_info.model_number, &page_a0[SSF_VENDOR_PN], 16);
+ memcpy(desc->opd_info.serial_number, &page_a0[SSF_VENDOR_SN], 16);
+ memcpy(desc->opd_info.revision, &page_a0[SSF_VENDOR_REV], 2);
+ memcpy(desc->opd_info.date, &page_a0[SSF_DATE_CODE], 8);
+ desc->length = cpu_to_be32(sizeof(desc->opd_info));
+}
+
int
lpfc_rdp_res_fec_desc(struct fc_fec_rdp_desc *desc, READ_LNK_VAR *stat)
{
@@ -4776,6 +4918,8 @@ lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba)
if (rdp_cap == 0)
rdp_cap = RDP_CAP_UNKNOWN;
+ if (phba->cfg_link_speed != LPFC_USER_LINK_SPEED_AUTO)
+ rdp_cap |= RDP_CAP_USER_CONFIGURED;
desc->info.port_speed.capabilities = cpu_to_be16(rdp_cap);
desc->length = cpu_to_be32(sizeof(desc->info));
@@ -4875,6 +5019,19 @@ lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context,
lpfc_rdp_res_diag_port_names(&rdp_res->diag_port_names_desc, phba);
lpfc_rdp_res_attach_port_names(&rdp_res->attached_port_names_desc,
vport, ndlp);
+ lpfc_rdp_res_bbc_desc(&rdp_res->bbc_desc, &rdp_context->link_stat,
+ vport);
+ lpfc_rdp_res_oed_temp_desc(&rdp_res->oed_temp_desc,
+ rdp_context->page_a2);
+ lpfc_rdp_res_oed_voltage_desc(&rdp_res->oed_voltage_desc,
+ rdp_context->page_a2);
+ lpfc_rdp_res_oed_txbias_desc(&rdp_res->oed_txbias_desc,
+ rdp_context->page_a2);
+ lpfc_rdp_res_oed_txpower_desc(&rdp_res->oed_txpower_desc,
+ rdp_context->page_a2);
+ lpfc_rdp_res_oed_rxpower_desc(&rdp_res->oed_rxpower_desc,
+ rdp_context->page_a2);
+ lpfc_rdp_res_opd_desc(&rdp_res->opd_desc, rdp_context->page_a0, vport);
fec_size = lpfc_rdp_res_fec_desc(&rdp_res->fec_desc,
&rdp_context->link_stat);
rdp_res->length = cpu_to_be32(fec_size + RDP_DESC_PAYLOAD_SIZE);
@@ -7849,8 +8006,9 @@ lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
return;
}
- if ((phba->cfg_fdmi_on > LPFC_FDMI_NO_SUPPORT) &&
- (vport->load_flag & FC_ALLOW_FDMI))
+ if ((phba->cfg_enable_SmartSAN ||
+ (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) &&
+ (vport->load_flag & FC_ALLOW_FDMI))
lpfc_start_fdmi(vport);
}
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index 25b5dcd1a5c8..ed223937798a 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -1,7 +1,7 @@
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2015 Emulex. All rights reserved. *
+ * Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
@@ -4545,7 +4545,8 @@ lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
(!(vport->load_flag & FC_UNLOADING)) &&
(bf_get(lpfc_sli_intf_if_type,
&phba->sli4_hba.sli_intf) ==
- LPFC_SLI_INTF_IF_TYPE_2)) {
+ LPFC_SLI_INTF_IF_TYPE_2) &&
+ (atomic_read(&ndlp->kref.refcount) > 0)) {
mbox->context1 = lpfc_nlp_get(ndlp);
mbox->mbox_cmpl =
lpfc_sli4_unreg_rpi_cmpl_clr;
diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h
index dd20412c7e4c..39f0fd000d2c 100644
--- a/drivers/scsi/lpfc/lpfc_hw.h
+++ b/drivers/scsi/lpfc/lpfc_hw.h
@@ -1,7 +1,7 @@
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2015 Emulex. All rights reserved. *
+ * Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* *
@@ -1134,9 +1134,10 @@ struct fc_rdp_link_error_status_desc {
#define RDP_PS_16GB 0x0400
#define RDP_PS_32GB 0x0200
-#define RDP_CAP_UNKNOWN 0x0001
-#define RDP_PS_UNKNOWN 0x0002
-#define RDP_PS_NOT_ESTABLISHED 0x0001
+#define RDP_CAP_USER_CONFIGURED 0x0002
+#define RDP_CAP_UNKNOWN 0x0001
+#define RDP_PS_UNKNOWN 0x0002
+#define RDP_PS_NOT_ESTABLISHED 0x0001
struct fc_rdp_port_speed {
uint16_t capabilities;
@@ -1192,6 +1193,58 @@ struct fc_rdp_sfp_desc {
struct fc_rdp_sfp_info sfp_info;
};
+/* Buffer Credit Descriptor */
+struct fc_rdp_bbc_info {
+ uint32_t port_bbc; /* FC_Port buffer-to-buffer credit */
+ uint32_t attached_port_bbc;
+ uint32_t rtt; /* Round trip time */
+};
+#define RDP_BBC_DESC_TAG 0x00010006
+struct fc_rdp_bbc_desc {
+ uint32_t tag;
+ uint32_t length;
+ struct fc_rdp_bbc_info bbc_info;
+};
+
+#define RDP_OED_TEMPERATURE 0x1
+#define RDP_OED_VOLTAGE 0x2
+#define RDP_OED_TXBIAS 0x3
+#define RDP_OED_TXPOWER 0x4
+#define RDP_OED_RXPOWER 0x5
+
+#define RDP_OED_TYPE_SHIFT 28
+/* Optical Element Data descriptor */
+struct fc_rdp_oed_info {
+ uint16_t hi_alarm;
+ uint16_t lo_alarm;
+ uint16_t hi_warning;
+ uint16_t lo_warning;
+ uint32_t function_flags;
+};
+#define RDP_OED_DESC_TAG 0x00010007
+struct fc_rdp_oed_sfp_desc {
+ uint32_t tag;
+ uint32_t length;
+ struct fc_rdp_oed_info oed_info;
+};
+
+/* Optical Product Data descriptor */
+struct fc_rdp_opd_sfp_info {
+ uint8_t vendor_name[16];
+ uint8_t model_number[16];
+ uint8_t serial_number[16];
+ uint8_t reserved[2];
+ uint8_t revision[2];
+ uint8_t date[8];
+};
+
+#define RDP_OPD_DESC_TAG 0x00010008
+struct fc_rdp_opd_sfp_desc {
+ uint32_t tag;
+ uint32_t length;
+ struct fc_rdp_opd_sfp_info opd_info;
+};
+
struct fc_rdp_req_frame {
uint32_t rdp_command; /* ELS command opcode (0x18)*/
uint32_t rdp_des_length; /* RDP Payload Word 1 */
@@ -1208,7 +1261,14 @@ struct fc_rdp_res_frame {
struct fc_rdp_link_error_status_desc link_error_desc; /* Word 13-21 */
struct fc_rdp_port_name_desc diag_port_names_desc; /* Word 22-27 */
struct fc_rdp_port_name_desc attached_port_names_desc;/* Word 28-33 */
- struct fc_fec_rdp_desc fec_desc; /* FC Word 34 - 37 */
+ struct fc_rdp_bbc_desc bbc_desc; /* FC Word 34-38*/
+ struct fc_rdp_oed_sfp_desc oed_temp_desc; /* FC Word 39-43*/
+ struct fc_rdp_oed_sfp_desc oed_voltage_desc; /* FC word 44-48*/
+ struct fc_rdp_oed_sfp_desc oed_txbias_desc; /* FC word 49-53*/
+ struct fc_rdp_oed_sfp_desc oed_txpower_desc; /* FC word 54-58*/
+ struct fc_rdp_oed_sfp_desc oed_rxpower_desc; /* FC word 59-63*/
+ struct fc_rdp_opd_sfp_desc opd_desc; /* FC word 64-80*/
+ struct fc_fec_rdp_desc fec_desc; /* FC word 81-84*/
};
@@ -1216,7 +1276,10 @@ struct fc_rdp_res_frame {
+ sizeof(struct fc_rdp_sfp_desc) \
+ sizeof(struct fc_rdp_port_speed_desc) \
+ sizeof(struct fc_rdp_link_error_status_desc) \
- + (sizeof(struct fc_rdp_port_name_desc) * 2))
+ + (sizeof(struct fc_rdp_port_name_desc) * 2) \
+ + sizeof(struct fc_rdp_bbc_desc) \
+ + (sizeof(struct fc_rdp_oed_sfp_desc) * 5) \
+ + sizeof(struct fc_rdp_opd_sfp_desc))
/******** FDMI ********/
diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h
index 608f9415fb08..0c7070bf2813 100644
--- a/drivers/scsi/lpfc/lpfc_hw4.h
+++ b/drivers/scsi/lpfc/lpfc_hw4.h
@@ -1,7 +1,7 @@
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2009-2015 Emulex. All rights reserved. *
+ * Copyright (C) 2009-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* *
@@ -2557,7 +2557,26 @@ struct lpfc_mbx_memory_dump_type3 {
/* SFF-8472 Table 3.1a Diagnostics: Data Fields Address/Page A2 */
-#define SSF_AW_THRESHOLDS 0
+#define SSF_TEMP_HIGH_ALARM 0
+#define SSF_TEMP_LOW_ALARM 2
+#define SSF_TEMP_HIGH_WARNING 4
+#define SSF_TEMP_LOW_WARNING 6
+#define SSF_VOLTAGE_HIGH_ALARM 8
+#define SSF_VOLTAGE_LOW_ALARM 10
+#define SSF_VOLTAGE_HIGH_WARNING 12
+#define SSF_VOLTAGE_LOW_WARNING 14
+#define SSF_BIAS_HIGH_ALARM 16
+#define SSF_BIAS_LOW_ALARM 18
+#define SSF_BIAS_HIGH_WARNING 20
+#define SSF_BIAS_LOW_WARNING 22
+#define SSF_TXPOWER_HIGH_ALARM 24
+#define SSF_TXPOWER_LOW_ALARM 26
+#define SSF_TXPOWER_HIGH_WARNING 28
+#define SSF_TXPOWER_LOW_WARNING 30
+#define SSF_RXPOWER_HIGH_ALARM 32
+#define SSF_RXPOWER_LOW_ALARM 34
+#define SSF_RXPOWER_HIGH_WARNING 36
+#define SSF_RXPOWER_LOW_WARNING 38
#define SSF_EXT_CAL_CONSTANTS 56
#define SSF_CC_DMI 95
#define SFF_TEMPERATURE_B1 96
@@ -2865,6 +2884,9 @@ struct lpfc_sli4_parameters {
uint32_t word17;
uint32_t word18;
uint32_t word19;
+#define cfg_ext_embed_cb_SHIFT 0
+#define cfg_ext_embed_cb_MASK 0x00000001
+#define cfg_ext_embed_cb_WORD word19
};
struct lpfc_mbx_get_sli4_parameters {
@@ -3919,6 +3941,9 @@ union lpfc_wqe {
union lpfc_wqe128 {
uint32_t words[32];
struct lpfc_wqe_generic generic;
+ struct fcp_icmnd64_wqe fcp_icmd;
+ struct fcp_iread64_wqe fcp_iread;
+ struct fcp_iwrite64_wqe fcp_iwrite;
struct xmit_seq64_wqe xmit_sequence;
struct gen_req64_wqe gen_req;
};
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index f57d02c3b6cf..b43f7ac9812c 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -1,7 +1,7 @@
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2015 Emulex. All rights reserved. *
+ * Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
@@ -6158,11 +6158,12 @@ lpfc_create_shost(struct lpfc_hba *phba)
* any initial discovery should be completed.
*/
vport->load_flag |= FC_ALLOW_FDMI;
- if (phba->cfg_fdmi_on > LPFC_FDMI_NO_SUPPORT) {
+ if (phba->cfg_enable_SmartSAN ||
+ (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
/* Setup appropriate attribute masks */
vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
- if (phba->cfg_fdmi_on == LPFC_FDMI_SMART_SAN)
+ if (phba->cfg_enable_SmartSAN)
vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
else
vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
@@ -7264,8 +7265,15 @@ lpfc_sli4_queue_create(struct lpfc_hba *phba)
phba->sli4_hba.fcp_cq[idx] = qdesc;
/* Create Fast Path FCP WQs */
- qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
- phba->sli4_hba.wq_ecount);
+ if (phba->fcp_embed_io) {
+ qdesc = lpfc_sli4_queue_alloc(phba,
+ LPFC_WQE128_SIZE,
+ LPFC_WQE128_DEF_COUNT);
+ } else {
+ qdesc = lpfc_sli4_queue_alloc(phba,
+ phba->sli4_hba.wq_esize,
+ phba->sli4_hba.wq_ecount);
+ }
if (!qdesc) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0503 Failed allocate fast-path FCP "
@@ -9510,6 +9518,15 @@ lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
+ /*
+ * Issue IOs with CDB embedded in WQE to minimized the number
+ * of DMAs the firmware has to do. Setting this to 1 also forces
+ * the driver to use 128 bytes WQEs for FCP IOs.
+ */
+ if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
+ phba->fcp_embed_io = 1;
+ else
+ phba->fcp_embed_io = 0;
return 0;
}
diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c
index f87f90e9b7df..12dbe99ccc50 100644
--- a/drivers/scsi/lpfc/lpfc_mbox.c
+++ b/drivers/scsi/lpfc/lpfc_mbox.c
@@ -1,7 +1,7 @@
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2015 Emulex. All rights reserved. *
+ * Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
@@ -2145,10 +2145,12 @@ lpfc_reg_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport, dma_addr_t phys)
reg_vfi->wwn[1] = cpu_to_le32(reg_vfi->wwn[1]);
reg_vfi->e_d_tov = phba->fc_edtov;
reg_vfi->r_a_tov = phba->fc_ratov;
- reg_vfi->bde.addrHigh = putPaddrHigh(phys);
- reg_vfi->bde.addrLow = putPaddrLow(phys);
- reg_vfi->bde.tus.f.bdeSize = sizeof(vport->fc_sparam);
- reg_vfi->bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
+ if (phys) {
+ reg_vfi->bde.addrHigh = putPaddrHigh(phys);
+ reg_vfi->bde.addrLow = putPaddrLow(phys);
+ reg_vfi->bde.tus.f.bdeSize = sizeof(vport->fc_sparam);
+ reg_vfi->bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
+ }
bf_set(lpfc_reg_vfi_nport_id, reg_vfi, vport->fc_myDID);
/* Only FC supports upd bit */
diff --git a/drivers/scsi/lpfc/lpfc_mem.c b/drivers/scsi/lpfc/lpfc_mem.c
index 4fb3581d4614..3fa65338d3f5 100644
--- a/drivers/scsi/lpfc/lpfc_mem.c
+++ b/drivers/scsi/lpfc/lpfc_mem.c
@@ -231,13 +231,15 @@ lpfc_mem_free(struct lpfc_hba *phba)
if (phba->lpfc_hbq_pool)
pci_pool_destroy(phba->lpfc_hbq_pool);
phba->lpfc_hbq_pool = NULL;
- mempool_destroy(phba->rrq_pool);
+
+ if (phba->rrq_pool)
+ mempool_destroy(phba->rrq_pool);
phba->rrq_pool = NULL;
/* Free NLP memory pool */
mempool_destroy(phba->nlp_mem_pool);
phba->nlp_mem_pool = NULL;
- if (phba->sli_rev == LPFC_SLI_REV4) {
+ if (phba->sli_rev == LPFC_SLI_REV4 && phba->active_rrq_pool) {
mempool_destroy(phba->active_rrq_pool);
phba->active_rrq_pool = NULL;
}
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index 193733e8c823..56a3df4fddb0 100644
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -1,7 +1,7 @@
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2015 Emulex. All rights reserved. *
+ * Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
@@ -1512,6 +1512,7 @@ lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport,
if ((mb = phba->sli.mbox_active)) {
if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
(ndlp == (struct lpfc_nodelist *) mb->context2)) {
+ ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
lpfc_nlp_put(ndlp);
mb->context2 = NULL;
mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
@@ -1527,6 +1528,7 @@ lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport,
__lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
}
+ ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
lpfc_nlp_put(ndlp);
list_del(&mb->list);
phba->sli.mboxq_cnt--;
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 2207726b88ee..70edf21ae1b9 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -1,7 +1,7 @@
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2015 Emulex. All rights reserved. *
+ * Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
@@ -2000,10 +2000,9 @@ lpfc_sli_hbqbuf_get(struct list_head *rb_list)
* @phba: Pointer to HBA context object.
* @tag: Tag of the hbq buffer.
*
- * This function is called with hbalock held. This function searches
- * for the hbq buffer associated with the given tag in the hbq buffer
- * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
- * it returns NULL.
+ * This function searches for the hbq buffer associated with the given tag in
+ * the hbq buffer list. If it finds the hbq buffer, it returns the hbq_buffer
+ * otherwise it returns NULL.
**/
static struct hbq_dmabuf *
lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
@@ -2012,8 +2011,6 @@ lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
struct hbq_dmabuf *hbq_buf;
uint32_t hbqno;
- lockdep_assert_held(&phba->hbalock);
-
hbqno = tag >> 16;
if (hbqno >= LPFC_MAX_HBQS)
return NULL;
@@ -2211,6 +2208,7 @@ lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
rpi = pmb->u.mb.un.varWords[0];
vpi = pmb->u.mb.un.varRegLogin.vpi;
lpfc_unreg_login(phba, vpi, rpi, pmb);
+ pmb->vport = vport;
pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
if (rc != MBX_NOT_FINISHED)
@@ -4688,6 +4686,7 @@ lpfc_sli_hba_setup(struct lpfc_hba *phba)
break;
}
+ phba->fcp_embed_io = 0; /* SLI4 FC support only */
rc = lpfc_sli_config_port(phba, mode);
@@ -6320,10 +6319,12 @@ lpfc_sli4_hba_setup(struct lpfc_hba *phba)
mqe = &mboxq->u.mqe;
phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
- if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
+ if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev)) {
phba->hba_flag |= HBA_FCOE_MODE;
- else
+ phba->fcp_embed_io = 0; /* SLI4 FC support only */
+ } else {
phba->hba_flag &= ~HBA_FCOE_MODE;
+ }
if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
LPFC_DCBX_CEE_MODE)
@@ -8218,12 +8219,15 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
else
command_type = ELS_COMMAND_NON_FIP;
+ if (phba->fcp_embed_io)
+ memset(wqe, 0, sizeof(union lpfc_wqe128));
/* Some of the fields are in the right position already */
memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
- abort_tag = (uint32_t) iocbq->iotag;
- xritag = iocbq->sli4_xritag;
wqe->generic.wqe_com.word7 = 0; /* The ct field has moved so reset */
wqe->generic.wqe_com.word10 = 0;
+
+ abort_tag = (uint32_t) iocbq->iotag;
+ xritag = iocbq->sli4_xritag;
/* words0-2 bpl convert bde */
if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
@@ -8372,11 +8376,9 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
iocbq->iocb.ulpFCP2Rcvy);
bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
/* Always open the exchange */
- bf_set(wqe_xc, &wqe->fcp_iwrite.wqe_com, 0);
bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
LPFC_WQE_LENLOC_WORD4);
- bf_set(wqe_ebde_cnt, &wqe->fcp_iwrite.wqe_com, 0);
bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
if (iocbq->iocb_flag & LPFC_IO_OAS) {
@@ -8387,6 +8389,35 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
(phba->cfg_XLanePriority << 1));
}
}
+ /* Note, word 10 is already initialized to 0 */
+
+ if (phba->fcp_embed_io) {
+ struct lpfc_scsi_buf *lpfc_cmd;
+ struct sli4_sge *sgl;
+ union lpfc_wqe128 *wqe128;
+ struct fcp_cmnd *fcp_cmnd;
+ uint32_t *ptr;
+
+ /* 128 byte wqe support here */
+ wqe128 = (union lpfc_wqe128 *)wqe;
+
+ lpfc_cmd = iocbq->context1;
+ sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
+ fcp_cmnd = lpfc_cmd->fcp_cmnd;
+
+ /* Word 0-2 - FCP_CMND */
+ wqe128->generic.bde.tus.f.bdeFlags =
+ BUFF_TYPE_BDE_IMMED;
+ wqe128->generic.bde.tus.f.bdeSize = sgl->sge_len;
+ wqe128->generic.bde.addrHigh = 0;
+ wqe128->generic.bde.addrLow = 88; /* Word 22 */
+
+ bf_set(wqe_wqes, &wqe128->fcp_iwrite.wqe_com, 1);
+
+ /* Word 22-29 FCP CMND Payload */
+ ptr = &wqe128->words[22];
+ memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
+ }
break;
case CMD_FCP_IREAD64_CR:
/* word3 iocb=iotag wqe=payload_offset_len */
@@ -8401,11 +8432,9 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
iocbq->iocb.ulpFCP2Rcvy);
bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
/* Always open the exchange */
- bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
LPFC_WQE_LENLOC_WORD4);
- bf_set(wqe_ebde_cnt, &wqe->fcp_iread.wqe_com, 0);
bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
if (iocbq->iocb_flag & LPFC_IO_OAS) {
@@ -8416,6 +8445,35 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
(phba->cfg_XLanePriority << 1));
}
}
+ /* Note, word 10 is already initialized to 0 */
+
+ if (phba->fcp_embed_io) {
+ struct lpfc_scsi_buf *lpfc_cmd;
+ struct sli4_sge *sgl;
+ union lpfc_wqe128 *wqe128;
+ struct fcp_cmnd *fcp_cmnd;
+ uint32_t *ptr;
+
+ /* 128 byte wqe support here */
+ wqe128 = (union lpfc_wqe128 *)wqe;
+
+ lpfc_cmd = iocbq->context1;
+ sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
+ fcp_cmnd = lpfc_cmd->fcp_cmnd;
+
+ /* Word 0-2 - FCP_CMND */
+ wqe128->generic.bde.tus.f.bdeFlags =
+ BUFF_TYPE_BDE_IMMED;
+ wqe128->generic.bde.tus.f.bdeSize = sgl->sge_len;
+ wqe128->generic.bde.addrHigh = 0;
+ wqe128->generic.bde.addrLow = 88; /* Word 22 */
+
+ bf_set(wqe_wqes, &wqe128->fcp_iread.wqe_com, 1);
+
+ /* Word 22-29 FCP CMND Payload */
+ ptr = &wqe128->words[22];
+ memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
+ }
break;
case CMD_FCP_ICMND64_CR:
/* word3 iocb=iotag wqe=payload_offset_len */
@@ -8427,13 +8485,11 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
/* word3 iocb=IO_TAG wqe=reserved */
bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
/* Always open the exchange */
- bf_set(wqe_xc, &wqe->fcp_icmd.wqe_com, 0);
bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
LPFC_WQE_LENLOC_NONE);
- bf_set(wqe_ebde_cnt, &wqe->fcp_icmd.wqe_com, 0);
bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
iocbq->iocb.ulpFCP2Rcvy);
if (iocbq->iocb_flag & LPFC_IO_OAS) {
@@ -8444,6 +8500,35 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
(phba->cfg_XLanePriority << 1));
}
}
+ /* Note, word 10 is already initialized to 0 */
+
+ if (phba->fcp_embed_io) {
+ struct lpfc_scsi_buf *lpfc_cmd;
+ struct sli4_sge *sgl;
+ union lpfc_wqe128 *wqe128;
+ struct fcp_cmnd *fcp_cmnd;
+ uint32_t *ptr;
+
+ /* 128 byte wqe support here */
+ wqe128 = (union lpfc_wqe128 *)wqe;
+
+ lpfc_cmd = iocbq->context1;
+ sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
+ fcp_cmnd = lpfc_cmd->fcp_cmnd;
+
+ /* Word 0-2 - FCP_CMND */
+ wqe128->generic.bde.tus.f.bdeFlags =
+ BUFF_TYPE_BDE_IMMED;
+ wqe128->generic.bde.tus.f.bdeSize = sgl->sge_len;
+ wqe128->generic.bde.addrHigh = 0;
+ wqe128->generic.bde.addrLow = 88; /* Word 22 */
+
+ bf_set(wqe_wqes, &wqe128->fcp_icmd.wqe_com, 1);
+
+ /* Word 22-29 FCP CMND Payload */
+ ptr = &wqe128->words[22];
+ memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
+ }
break;
case CMD_GEN_REQUEST64_CR:
/* For this command calculate the xmit length of the
@@ -8675,12 +8760,19 @@ __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
struct lpfc_iocbq *piocb, uint32_t flag)
{
struct lpfc_sglq *sglq;
- union lpfc_wqe wqe;
+ union lpfc_wqe *wqe;
+ union lpfc_wqe128 wqe128;
struct lpfc_queue *wq;
struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
lockdep_assert_held(&phba->hbalock);
+ /*
+ * The WQE can be either 64 or 128 bytes,
+ * so allocate space on the stack assuming the largest.
+ */
+ wqe = (union lpfc_wqe *)&wqe128;
+
if (piocb->sli4_xritag == NO_XRI) {
if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
@@ -8727,7 +8819,7 @@ __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
return IOCB_ERROR;
}
- if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
+ if (lpfc_sli4_iocb2wqe(phba, piocb, wqe))
return IOCB_ERROR;
if ((piocb->iocb_flag & LPFC_IO_FCP) ||
@@ -8737,12 +8829,12 @@ __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
} else {
wq = phba->sli4_hba.oas_wq;
}
- if (lpfc_sli4_wq_put(wq, &wqe))
+ if (lpfc_sli4_wq_put(wq, wqe))
return IOCB_ERROR;
} else {
if (unlikely(!phba->sli4_hba.els_wq))
return IOCB_ERROR;
- if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
+ if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, wqe))
return IOCB_ERROR;
}
lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
@@ -8757,9 +8849,9 @@ __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
* pointer from the lpfc_hba struct.
*
* Return codes:
- * IOCB_ERROR - Error
- * IOCB_SUCCESS - Success
- * IOCB_BUSY - Busy
+ * IOCB_ERROR - Error
+ * IOCB_SUCCESS - Success
+ * IOCB_BUSY - Busy
**/
int
__lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
diff --git a/drivers/scsi/lpfc/lpfc_version.h b/drivers/scsi/lpfc/lpfc_version.h
index 4dc22562aaf1..fa0d531bf351 100644
--- a/drivers/scsi/lpfc/lpfc_version.h
+++ b/drivers/scsi/lpfc/lpfc_version.h
@@ -1,7 +1,7 @@
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2015 Emulex. All rights reserved. *
+ * Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* *
@@ -18,7 +18,7 @@
* included with this package. *
*******************************************************************/
-#define LPFC_DRIVER_VERSION "11.0.0.10."
+#define LPFC_DRIVER_VERSION "11.1.0.0."
#define LPFC_DRIVER_NAME "lpfc"
/* Used for SLI 2/3 */
@@ -30,4 +30,4 @@
#define LPFC_MODULE_DESC "Emulex LightPulse Fibre Channel SCSI driver " \
LPFC_DRIVER_VERSION
-#define LPFC_COPYRIGHT "Copyright(c) 2004-2015 Emulex. All rights reserved."
+#define LPFC_COPYRIGHT "Copyright(c) 2004-2016 Emulex. All rights reserved."
diff --git a/drivers/scsi/lpfc/lpfc_vport.c b/drivers/scsi/lpfc/lpfc_vport.c
index b3f85def18cc..c27f4b724547 100644
--- a/drivers/scsi/lpfc/lpfc_vport.c
+++ b/drivers/scsi/lpfc/lpfc_vport.c
@@ -1,7 +1,7 @@
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2013 Emulex. All rights reserved. *
+ * Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
@@ -395,7 +395,8 @@ lpfc_vport_create(struct fc_vport *fc_vport, bool disable)
/* At this point we are fully registered with SCSI Layer. */
vport->load_flag |= FC_ALLOW_FDMI;
- if (phba->cfg_fdmi_on > LPFC_FDMI_NO_SUPPORT) {
+ if (phba->cfg_enable_SmartSAN ||
+ (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
/* Setup appropriate attribute masks */
vport->fdmi_hba_mask = phba->pport->fdmi_hba_mask;
vport->fdmi_port_mask = phba->pport->fdmi_port_mask;
diff --git a/drivers/scsi/mac_scsi.c b/drivers/scsi/mac_scsi.c
index bb2381314a2b..a590089b9397 100644
--- a/drivers/scsi/mac_scsi.c
+++ b/drivers/scsi/mac_scsi.c
@@ -28,24 +28,23 @@
/* Definitions for the core NCR5380 driver. */
-#define PSEUDO_DMA
-
-#define NCR5380_implementation_fields unsigned char *pdma_base
+#define NCR5380_implementation_fields unsigned char *pdma_base; \
+ int pdma_residual
#define NCR5380_read(reg) macscsi_read(instance, reg)
#define NCR5380_write(reg, value) macscsi_write(instance, reg, value)
-#define NCR5380_pread macscsi_pread
-#define NCR5380_pwrite macscsi_pwrite
-#define NCR5380_dma_xfer_len(instance, cmd, phase) (cmd->transfersize)
+#define NCR5380_dma_xfer_len(instance, cmd, phase) \
+ macscsi_dma_xfer_len(instance, cmd)
+#define NCR5380_dma_recv_setup macscsi_pread
+#define NCR5380_dma_send_setup macscsi_pwrite
+#define NCR5380_dma_residual(instance) (hostdata->pdma_residual)
#define NCR5380_intr macscsi_intr
#define NCR5380_queue_command macscsi_queue_command
#define NCR5380_abort macscsi_abort
#define NCR5380_bus_reset macscsi_bus_reset
#define NCR5380_info macscsi_info
-#define NCR5380_show_info macscsi_show_info
-#define NCR5380_write_info macscsi_write_info
#include "NCR5380.h"
@@ -57,8 +56,6 @@ static int setup_sg_tablesize = -1;
module_param(setup_sg_tablesize, int, 0);
static int setup_use_pdma = -1;
module_param(setup_use_pdma, int, 0);
-static int setup_use_tagged_queuing = -1;
-module_param(setup_use_tagged_queuing, int, 0);
static int setup_hostid = -1;
module_param(setup_hostid, int, 0);
static int setup_toshiba_delay = -1;
@@ -97,8 +94,7 @@ static int __init mac_scsi_setup(char *str)
setup_sg_tablesize = ints[3];
if (ints[0] >= 4)
setup_hostid = ints[4];
- if (ints[0] >= 5)
- setup_use_tagged_queuing = ints[5];
+ /* ints[5] (use_tagged_queuing) is ignored */
if (ints[0] >= 6)
setup_use_pdma = ints[6];
if (ints[0] >= 7)
@@ -109,19 +105,9 @@ static int __init mac_scsi_setup(char *str)
__setup("mac5380=", mac_scsi_setup);
#endif /* !MODULE */
-#ifdef PSEUDO_DMA
-/*
- Pseudo-DMA: (Ove Edlund)
- The code attempts to catch bus errors that occur if one for example
- "trips over the cable".
- XXX: Since bus errors in the PDMA routines never happen on my
- computer, the bus error code is untested.
- If the code works as intended, a bus error results in Pseudo-DMA
- being disabled, meaning that the driver switches to slow handshake.
- If bus errors are NOT extremely rare, this has to be changed.
-*/
-
-#define CP_IO_TO_MEM(s,d,len) \
+/* Pseudo DMA asm originally by Ove Edlund */
+
+#define CP_IO_TO_MEM(s,d,n) \
__asm__ __volatile__ \
(" cmp.w #4,%2\n" \
" bls 8f\n" \
@@ -158,61 +144,73 @@ __asm__ __volatile__ \
" 9: \n" \
".section .fixup,\"ax\"\n" \
" .even\n" \
- "90: moveq.l #1, %2\n" \
+ "91: moveq.l #1, %2\n" \
+ " jra 9b\n" \
+ "94: moveq.l #4, %2\n" \
" jra 9b\n" \
".previous\n" \
".section __ex_table,\"a\"\n" \
" .align 4\n" \
- " .long 1b,90b\n" \
- " .long 3b,90b\n" \
- " .long 31b,90b\n" \
- " .long 32b,90b\n" \
- " .long 33b,90b\n" \
- " .long 34b,90b\n" \
- " .long 35b,90b\n" \
- " .long 36b,90b\n" \
- " .long 37b,90b\n" \
- " .long 5b,90b\n" \
- " .long 7b,90b\n" \
+ " .long 1b,91b\n" \
+ " .long 3b,94b\n" \
+ " .long 31b,94b\n" \
+ " .long 32b,94b\n" \
+ " .long 33b,94b\n" \
+ " .long 34b,94b\n" \
+ " .long 35b,94b\n" \
+ " .long 36b,94b\n" \
+ " .long 37b,94b\n" \
+ " .long 5b,94b\n" \
+ " .long 7b,91b\n" \
".previous" \
- : "=a"(s), "=a"(d), "=d"(len) \
- : "0"(s), "1"(d), "2"(len) \
+ : "=a"(s), "=a"(d), "=d"(n) \
+ : "0"(s), "1"(d), "2"(n) \
: "d0")
static int macscsi_pread(struct Scsi_Host *instance,
unsigned char *dst, int len)
{
struct NCR5380_hostdata *hostdata = shost_priv(instance);
- unsigned char *d;
- unsigned char *s;
-
- s = hostdata->pdma_base + (INPUT_DATA_REG << 4);
- d = dst;
-
- /* These conditions are derived from MacOS */
-
- while (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_DRQ) &&
- !(NCR5380_read(STATUS_REG) & SR_REQ))
- ;
-
- if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_DRQ) &&
- (NCR5380_read(BUS_AND_STATUS_REG) & BASR_PHASE_MATCH)) {
- pr_err("Error in macscsi_pread\n");
- return -1;
+ unsigned char *s = hostdata->pdma_base + (INPUT_DATA_REG << 4);
+ unsigned char *d = dst;
+ int n = len;
+ int transferred;
+
+ while (!NCR5380_poll_politely(instance, BUS_AND_STATUS_REG,
+ BASR_DRQ | BASR_PHASE_MATCH,
+ BASR_DRQ | BASR_PHASE_MATCH, HZ / 64)) {
+ CP_IO_TO_MEM(s, d, n);
+
+ transferred = d - dst - n;
+ hostdata->pdma_residual = len - transferred;
+
+ /* No bus error. */
+ if (n == 0)
+ return 0;
+
+ /* Target changed phase early? */
+ if (NCR5380_poll_politely2(instance, STATUS_REG, SR_REQ, SR_REQ,
+ BUS_AND_STATUS_REG, BASR_ACK, BASR_ACK, HZ / 64) < 0)
+ scmd_printk(KERN_ERR, hostdata->connected,
+ "%s: !REQ and !ACK\n", __func__);
+ if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_PHASE_MATCH))
+ return 0;
+
+ dsprintk(NDEBUG_PSEUDO_DMA, instance,
+ "%s: bus error (%d/%d)\n", __func__, transferred, len);
+ NCR5380_dprint(NDEBUG_PSEUDO_DMA, instance);
+ d = dst + transferred;
+ n = len - transferred;
}
- CP_IO_TO_MEM(s, d, len);
-
- if (len != 0) {
- pr_notice("Bus error in macscsi_pread\n");
- return -1;
- }
-
- return 0;
+ scmd_printk(KERN_ERR, hostdata->connected,
+ "%s: phase mismatch or !DRQ\n", __func__);
+ NCR5380_dprint(NDEBUG_PSEUDO_DMA, instance);
+ return -1;
}
-#define CP_MEM_TO_IO(s,d,len) \
+#define CP_MEM_TO_IO(s,d,n) \
__asm__ __volatile__ \
(" cmp.w #4,%2\n" \
" bls 8f\n" \
@@ -249,59 +247,89 @@ __asm__ __volatile__ \
" 9: \n" \
".section .fixup,\"ax\"\n" \
" .even\n" \
- "90: moveq.l #1, %2\n" \
+ "91: moveq.l #1, %2\n" \
+ " jra 9b\n" \
+ "94: moveq.l #4, %2\n" \
" jra 9b\n" \
".previous\n" \
".section __ex_table,\"a\"\n" \
" .align 4\n" \
- " .long 1b,90b\n" \
- " .long 3b,90b\n" \
- " .long 31b,90b\n" \
- " .long 32b,90b\n" \
- " .long 33b,90b\n" \
- " .long 34b,90b\n" \
- " .long 35b,90b\n" \
- " .long 36b,90b\n" \
- " .long 37b,90b\n" \
- " .long 5b,90b\n" \
- " .long 7b,90b\n" \
+ " .long 1b,91b\n" \
+ " .long 3b,94b\n" \
+ " .long 31b,94b\n" \
+ " .long 32b,94b\n" \
+ " .long 33b,94b\n" \
+ " .long 34b,94b\n" \
+ " .long 35b,94b\n" \
+ " .long 36b,94b\n" \
+ " .long 37b,94b\n" \
+ " .long 5b,94b\n" \
+ " .long 7b,91b\n" \
".previous" \
- : "=a"(s), "=a"(d), "=d"(len) \
- : "0"(s), "1"(d), "2"(len) \
+ : "=a"(s), "=a"(d), "=d"(n) \
+ : "0"(s), "1"(d), "2"(n) \
: "d0")
static int macscsi_pwrite(struct Scsi_Host *instance,
unsigned char *src, int len)
{
struct NCR5380_hostdata *hostdata = shost_priv(instance);
- unsigned char *s;
- unsigned char *d;
-
- s = src;
- d = hostdata->pdma_base + (OUTPUT_DATA_REG << 4);
-
- /* These conditions are derived from MacOS */
+ unsigned char *s = src;
+ unsigned char *d = hostdata->pdma_base + (OUTPUT_DATA_REG << 4);
+ int n = len;
+ int transferred;
+
+ while (!NCR5380_poll_politely(instance, BUS_AND_STATUS_REG,
+ BASR_DRQ | BASR_PHASE_MATCH,
+ BASR_DRQ | BASR_PHASE_MATCH, HZ / 64)) {
+ CP_MEM_TO_IO(s, d, n);
+
+ transferred = s - src - n;
+ hostdata->pdma_residual = len - transferred;
+
+ /* Target changed phase early? */
+ if (NCR5380_poll_politely2(instance, STATUS_REG, SR_REQ, SR_REQ,
+ BUS_AND_STATUS_REG, BASR_ACK, BASR_ACK, HZ / 64) < 0)
+ scmd_printk(KERN_ERR, hostdata->connected,
+ "%s: !REQ and !ACK\n", __func__);
+ if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_PHASE_MATCH))
+ return 0;
+
+ /* No bus error. */
+ if (n == 0) {
+ if (NCR5380_poll_politely(instance, TARGET_COMMAND_REG,
+ TCR_LAST_BYTE_SENT,
+ TCR_LAST_BYTE_SENT, HZ / 64) < 0)
+ scmd_printk(KERN_ERR, hostdata->connected,
+ "%s: Last Byte Sent timeout\n", __func__);
+ return 0;
+ }
+
+ dsprintk(NDEBUG_PSEUDO_DMA, instance,
+ "%s: bus error (%d/%d)\n", __func__, transferred, len);
+ NCR5380_dprint(NDEBUG_PSEUDO_DMA, instance);
+ s = src + transferred;
+ n = len - transferred;
+ }
- while (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_DRQ) &&
- (!(NCR5380_read(STATUS_REG) & SR_REQ) ||
- (NCR5380_read(BUS_AND_STATUS_REG) & BASR_PHASE_MATCH)))
- ;
+ scmd_printk(KERN_ERR, hostdata->connected,
+ "%s: phase mismatch or !DRQ\n", __func__);
+ NCR5380_dprint(NDEBUG_PSEUDO_DMA, instance);
- if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_DRQ)) {
- pr_err("Error in macscsi_pwrite\n");
- return -1;
- }
+ return -1;
+}
- CP_MEM_TO_IO(s, d, len);
+static int macscsi_dma_xfer_len(struct Scsi_Host *instance,
+ struct scsi_cmnd *cmd)
+{
+ struct NCR5380_hostdata *hostdata = shost_priv(instance);
- if (len != 0) {
- pr_notice("Bus error in macscsi_pwrite\n");
- return -1;
- }
+ if (hostdata->flags & FLAG_NO_PSEUDO_DMA ||
+ cmd->SCp.this_residual < 16)
+ return 0;
- return 0;
+ return cmd->SCp.this_residual;
}
-#endif
#include "NCR5380.c"
@@ -311,8 +339,6 @@ static int macscsi_pwrite(struct Scsi_Host *instance,
static struct scsi_host_template mac_scsi_template = {
.module = THIS_MODULE,
.proc_name = DRV_MODULE_NAME,
- .show_info = macscsi_show_info,
- .write_info = macscsi_write_info,
.name = "Macintosh NCR5380 SCSI",
.info = macscsi_info,
.queuecommand = macscsi_queue_command,
@@ -320,7 +346,7 @@ static struct scsi_host_template mac_scsi_template = {
.eh_bus_reset_handler = macscsi_bus_reset,
.can_queue = 16,
.this_id = 7,
- .sg_tablesize = SG_ALL,
+ .sg_tablesize = 1,
.cmd_per_lun = 2,
.use_clustering = DISABLE_CLUSTERING,
.cmd_size = NCR5380_CMD_SIZE,
@@ -338,9 +364,7 @@ static int __init mac_scsi_probe(struct platform_device *pdev)
if (!pio_mem)
return -ENODEV;
-#ifdef PSEUDO_DMA
pdma_mem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-#endif
irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
@@ -358,8 +382,6 @@ static int __init mac_scsi_probe(struct platform_device *pdev)
mac_scsi_template.sg_tablesize = setup_sg_tablesize;
if (setup_hostid >= 0)
mac_scsi_template.this_id = setup_hostid & 7;
- if (setup_use_pdma < 0)
- setup_use_pdma = 0;
instance = scsi_host_alloc(&mac_scsi_template,
sizeof(struct NCR5380_hostdata));
@@ -379,12 +401,9 @@ static int __init mac_scsi_probe(struct platform_device *pdev)
} else
host_flags |= FLAG_NO_PSEUDO_DMA;
-#ifdef SUPPORT_TAGS
- host_flags |= setup_use_tagged_queuing > 0 ? FLAG_TAGGED_QUEUING : 0;
-#endif
host_flags |= setup_toshiba_delay > 0 ? FLAG_TOSHIBA_DELAY : 0;
- error = NCR5380_init(instance, host_flags);
+ error = NCR5380_init(instance, host_flags | FLAG_LATE_DMA_SETUP);
if (error)
goto fail_init;
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index fce414a2cd76..ca86c885dfaa 100644
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -35,8 +35,8 @@
/*
* MegaRAID SAS Driver meta data
*/
-#define MEGASAS_VERSION "06.810.09.00-rc1"
-#define MEGASAS_RELDATE "Jan. 28, 2016"
+#define MEGASAS_VERSION "06.811.02.00-rc1"
+#define MEGASAS_RELDATE "April 12, 2016"
/*
* Device IDs
@@ -1344,6 +1344,8 @@ struct megasas_ctrl_info {
#define SCAN_PD_CHANNEL 0x1
#define SCAN_VD_CHANNEL 0x2
+#define MEGASAS_KDUMP_QUEUE_DEPTH 100
+
enum MR_SCSI_CMD_TYPE {
READ_WRITE_LDIO = 0,
NON_READ_WRITE_LDIO = 1,
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index e6ebc7ae2df1..f4b0690450d2 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -2670,17 +2670,6 @@ blk_eh_timer_return megasas_reset_timer(struct scsi_cmnd *scmd)
}
/**
- * megasas_reset_device - Device reset handler entry point
- */
-static int megasas_reset_device(struct scsi_cmnd *scmd)
-{
- /*
- * First wait for all commands to complete
- */
- return megasas_generic_reset(scmd);
-}
-
-/**
* megasas_reset_bus_host - Bus & host reset handler entry point
*/
static int megasas_reset_bus_host(struct scsi_cmnd *scmd)
@@ -2702,6 +2691,50 @@ static int megasas_reset_bus_host(struct scsi_cmnd *scmd)
}
/**
+ * megasas_task_abort - Issues task abort request to firmware
+ * (supported only for fusion adapters)
+ * @scmd: SCSI command pointer
+ */
+static int megasas_task_abort(struct scsi_cmnd *scmd)
+{
+ int ret;
+ struct megasas_instance *instance;
+
+ instance = (struct megasas_instance *)scmd->device->host->hostdata;
+
+ if (instance->ctrl_context)
+ ret = megasas_task_abort_fusion(scmd);
+ else {
+ sdev_printk(KERN_NOTICE, scmd->device, "TASK ABORT not supported\n");
+ ret = FAILED;
+ }
+
+ return ret;
+}
+
+/**
+ * megasas_reset_target: Issues target reset request to firmware
+ * (supported only for fusion adapters)
+ * @scmd: SCSI command pointer
+ */
+static int megasas_reset_target(struct scsi_cmnd *scmd)
+{
+ int ret;
+ struct megasas_instance *instance;
+
+ instance = (struct megasas_instance *)scmd->device->host->hostdata;
+
+ if (instance->ctrl_context)
+ ret = megasas_reset_target_fusion(scmd);
+ else {
+ sdev_printk(KERN_NOTICE, scmd->device, "TARGET RESET not supported\n");
+ ret = FAILED;
+ }
+
+ return ret;
+}
+
+/**
* megasas_bios_param - Returns disk geometry for a disk
* @sdev: device handle
* @bdev: block device
@@ -2969,8 +3002,8 @@ static struct scsi_host_template megasas_template = {
.slave_alloc = megasas_slave_alloc,
.slave_destroy = megasas_slave_destroy,
.queuecommand = megasas_queue_command,
- .eh_device_reset_handler = megasas_reset_device,
- .eh_bus_reset_handler = megasas_reset_bus_host,
+ .eh_target_reset_handler = megasas_reset_target,
+ .eh_abort_handler = megasas_task_abort,
.eh_host_reset_handler = megasas_reset_bus_host,
.eh_timed_out = megasas_reset_timer,
.shost_attrs = megaraid_host_attrs,
@@ -5152,7 +5185,7 @@ static int megasas_init_fw(struct megasas_instance *instance)
instance->instancet->enable_intr(instance);
- dev_err(&instance->pdev->dev, "INIT adapter done\n");
+ dev_info(&instance->pdev->dev, "INIT adapter done\n");
megasas_setup_jbod_map(instance);
@@ -5598,14 +5631,6 @@ static int megasas_io_attach(struct megasas_instance *instance)
host->max_lun = MEGASAS_MAX_LUN;
host->max_cmd_len = 16;
- /* Fusion only supports host reset */
- if (instance->ctrl_context) {
- host->hostt->eh_device_reset_handler = NULL;
- host->hostt->eh_bus_reset_handler = NULL;
- host->hostt->eh_target_reset_handler = megasas_reset_target_fusion;
- host->hostt->eh_abort_handler = megasas_task_abort_fusion;
- }
-
/*
* Notify the mid-layer about the new controller
*/
@@ -5761,13 +5786,6 @@ static int megasas_probe_one(struct pci_dev *pdev,
break;
}
- instance->system_info_buf = pci_zalloc_consistent(pdev,
- sizeof(struct MR_DRV_SYSTEM_INFO),
- &instance->system_info_h);
-
- if (!instance->system_info_buf)
- dev_info(&instance->pdev->dev, "Can't allocate system info buffer\n");
-
/* Crash dump feature related initialisation*/
instance->drv_buf_index = 0;
instance->drv_buf_alloc = 0;
@@ -5777,14 +5795,6 @@ static int megasas_probe_one(struct pci_dev *pdev,
spin_lock_init(&instance->crashdump_lock);
instance->crash_dump_buf = NULL;
- if (!reset_devices)
- instance->crash_dump_buf = pci_alloc_consistent(pdev,
- CRASH_DMA_BUF_SIZE,
- &instance->crash_dump_h);
- if (!instance->crash_dump_buf)
- dev_err(&pdev->dev, "Can't allocate Firmware "
- "crash dump DMA buffer\n");
-
megasas_poll_wait_aen = 0;
instance->flag_ieee = 0;
instance->ev = NULL;
@@ -5803,11 +5813,26 @@ static int megasas_probe_one(struct pci_dev *pdev,
goto fail_alloc_dma_buf;
}
- instance->pd_info = pci_alloc_consistent(pdev,
- sizeof(struct MR_PD_INFO), &instance->pd_info_h);
+ if (!reset_devices) {
+ instance->system_info_buf = pci_zalloc_consistent(pdev,
+ sizeof(struct MR_DRV_SYSTEM_INFO),
+ &instance->system_info_h);
+ if (!instance->system_info_buf)
+ dev_info(&instance->pdev->dev, "Can't allocate system info buffer\n");
+
+ instance->pd_info = pci_alloc_consistent(pdev,
+ sizeof(struct MR_PD_INFO), &instance->pd_info_h);
- if (!instance->pd_info)
- dev_err(&instance->pdev->dev, "Failed to alloc mem for pd_info\n");
+ if (!instance->pd_info)
+ dev_err(&instance->pdev->dev, "Failed to alloc mem for pd_info\n");
+
+ instance->crash_dump_buf = pci_alloc_consistent(pdev,
+ CRASH_DMA_BUF_SIZE,
+ &instance->crash_dump_h);
+ if (!instance->crash_dump_buf)
+ dev_err(&pdev->dev, "Can't allocate Firmware "
+ "crash dump DMA buffer\n");
+ }
/*
* Initialize locks and queues
@@ -7174,6 +7199,16 @@ static int __init megasas_init(void)
int rval;
/*
+ * Booted in kdump kernel, minimize memory footprints by
+ * disabling few features
+ */
+ if (reset_devices) {
+ msix_vectors = 1;
+ rdpq_enable = 0;
+ dual_qdepth_disable = 1;
+ }
+
+ /*
* Announce driver version and other information
*/
pr_info("megasas: %s\n", MEGASAS_VERSION);
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index 98a848bdfdc2..ec837544f784 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -257,6 +257,9 @@ megasas_fusion_update_can_queue(struct megasas_instance *instance, int fw_boot_c
if (!instance->is_rdpq)
instance->max_fw_cmds = min_t(u16, instance->max_fw_cmds, 1024);
+ if (reset_devices)
+ instance->max_fw_cmds = min(instance->max_fw_cmds,
+ (u16)MEGASAS_KDUMP_QUEUE_DEPTH);
/*
* Reduce the max supported cmds by 1. This is to ensure that the
* reply_q_sz (1 more than the max cmd that driver may send)
@@ -851,7 +854,7 @@ megasas_ioc_init_fusion(struct megasas_instance *instance)
ret = 1;
goto fail_fw_init;
}
- dev_err(&instance->pdev->dev, "Init cmd success\n");
+ dev_info(&instance->pdev->dev, "Init cmd success\n");
ret = 0;
@@ -2759,6 +2762,7 @@ int megasas_wait_for_outstanding_fusion(struct megasas_instance *instance,
dev_warn(&instance->pdev->dev, "Found FW in FAULT state,"
" will reset adapter scsi%d.\n",
instance->host->host_no);
+ megasas_complete_cmd_dpc_fusion((unsigned long)instance);
retval = 1;
goto out;
}
@@ -2766,6 +2770,7 @@ int megasas_wait_for_outstanding_fusion(struct megasas_instance *instance,
if (reason == MFI_IO_TIMEOUT_OCR) {
dev_info(&instance->pdev->dev,
"MFI IO is timed out, initiating OCR\n");
+ megasas_complete_cmd_dpc_fusion((unsigned long)instance);
retval = 1;
goto out;
}
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2.h b/drivers/scsi/mpt3sas/mpi/mpi2.h
index dfad5b8c1890..a9a659fc2812 100644
--- a/drivers/scsi/mpt3sas/mpi/mpi2.h
+++ b/drivers/scsi/mpt3sas/mpi/mpi2.h
@@ -8,7 +8,7 @@
* scatter/gather formats.
* Creation Date: June 21, 2006
*
- * mpi2.h Version: 02.00.39
+ * mpi2.h Version: 02.00.42
*
* NOTE: Names (typedefs, defines, etc.) beginning with an MPI25 or Mpi25
* prefix are for use only on MPI v2.5 products, and must not be used
@@ -100,6 +100,9 @@
* Added MPI2_DIAG_SBR_RELOAD.
* 03-19-15 02.00.38 Bumped MPI2_HEADER_VERSION_UNIT.
* 05-25-15 02.00.39 Bumped MPI2_HEADER_VERSION_UNIT.
+ * 08-25-15 02.00.40 Bumped MPI2_HEADER_VERSION_UNIT.
+ * 12-15-15 02.00.41 Bumped MPI_HEADER_VERSION_UNIT
+ * 01-01-16 02.00.42 Bumped MPI_HEADER_VERSION_UNIT
* --------------------------------------------------------------------------
*/
@@ -139,7 +142,7 @@
#define MPI2_VERSION_02_06 (0x0206)
/*Unit and Dev versioning for this MPI header set */
-#define MPI2_HEADER_VERSION_UNIT (0x27)
+#define MPI2_HEADER_VERSION_UNIT (0x2A)
#define MPI2_HEADER_VERSION_DEV (0x00)
#define MPI2_HEADER_VERSION_UNIT_MASK (0xFF00)
#define MPI2_HEADER_VERSION_UNIT_SHIFT (8)
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h b/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h
index 9cf09bf7c4a8..95356a82ee99 100644
--- a/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h
+++ b/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h
@@ -6,7 +6,7 @@
* Title: MPI Configuration messages and pages
* Creation Date: November 10, 2006
*
- * mpi2_cnfg.h Version: 02.00.33
+ * mpi2_cnfg.h Version: 02.00.35
*
* NOTE: Names (typedefs, defines, etc.) beginning with an MPI25 or Mpi25
* prefix are for use only on MPI v2.5 products, and must not be used
@@ -183,9 +183,12 @@
* Added MPI2_BIOSPAGE1_OPTIONS_ADVANCED_CONFIG.
* Added AdapterOrderAux fields to BIOS Page 3.
* 03-16-15 02.00.31 Updated for MPI v2.6.
+ * Added Flags field to IO Unit Page 7.
* Added new SAS Phy Event codes
* 05-25-15 02.00.33 Added more defines for the BiosOptions field of
* MPI2_CONFIG_PAGE_BIOS_1.
+ * 08-25-15 02.00.34 Bumped Header Version.
+ * 12-18-15 02.00.35 Added SATADeviceWaitTime to SAS IO Unit Page 4.
* --------------------------------------------------------------------------
*/
@@ -958,13 +961,16 @@ typedef struct _MPI2_CONFIG_PAGE_IO_UNIT_7 {
U8 Reserved3; /*0x17 */
U32 BoardPowerRequirement; /*0x18 */
U32 PCISlotPowerAllocation; /*0x1C */
- U32 Reserved6; /* 0x20 */
- U32 Reserved7; /* 0x24 */
+/* reserved prior to MPI v2.6 */
+ U8 Flags; /* 0x20 */
+ U8 Reserved6; /* 0x21 */
+ U16 Reserved7; /* 0x22 */
+ U32 Reserved8; /* 0x24 */
} MPI2_CONFIG_PAGE_IO_UNIT_7,
*PTR_MPI2_CONFIG_PAGE_IO_UNIT_7,
Mpi2IOUnitPage7_t, *pMpi2IOUnitPage7_t;
-#define MPI2_IOUNITPAGE7_PAGEVERSION (0x04)
+#define MPI2_IOUNITPAGE7_PAGEVERSION (0x05)
/*defines for IO Unit Page 7 CurrentPowerMode and PreviousPowerMode fields */
#define MPI25_IOUNITPAGE7_PM_INIT_MASK (0xC0)
@@ -1045,6 +1051,8 @@ typedef struct _MPI2_CONFIG_PAGE_IO_UNIT_7 {
#define MPI2_IOUNITPAGE7_BOARD_TEMP_FAHRENHEIT (0x01)
#define MPI2_IOUNITPAGE7_BOARD_TEMP_CELSIUS (0x02)
+/* defines for IO Unit Page 7 Flags field */
+#define MPI2_IOUNITPAGE7_FLAG_CABLE_POWER_EXC (0x01)
/*IO Unit Page 8 */
@@ -2271,7 +2279,7 @@ typedef struct _MPI2_CONFIG_PAGE_SASIOUNIT_4 {
U8
BootDeviceWaitTime; /*0x24 */
U8
- Reserved4; /*0x25 */
+ SATADeviceWaitTime; /*0x25 */
U16
Reserved5; /*0x26 */
U8
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_init.h b/drivers/scsi/mpt3sas/mpi/mpi2_init.h
index c38f624b859d..bba56b61d36c 100644
--- a/drivers/scsi/mpt3sas/mpi/mpi2_init.h
+++ b/drivers/scsi/mpt3sas/mpi/mpi2_init.h
@@ -6,7 +6,7 @@
* Title: MPI SCSI initiator mode messages and structures
* Creation Date: June 23, 2006
*
- * mpi2_init.h Version: 02.00.17
+ * mpi2_init.h Version: 02.00.20
*
* NOTE: Names (typedefs, defines, etc.) beginning with an MPI25 or Mpi25
* prefix are for use only on MPI v2.5 products, and must not be used
@@ -51,6 +51,9 @@
* Added MPI26_SCSIIO_IOFLAGS_ESCAPE_PASSTHROUGH.
* Added MPI2_SEP_REQ_SLOTSTATUS_DEV_OFF and
* MPI2_SEP_REPLY_SLOTSTATUS_DEV_OFF.
+ * 08-26-15 02.00.18 Added SCSITASKMGMT_MSGFLAGS for Target Reset.
+ * 12-18-15 02.00.19 Added EEDPObservedValue added to SCSI IO Reply message.
+ * 01-04-16 02.00.20 Modified EEDP reported values in SCSI IO Reply message.
* --------------------------------------------------------------------------
*/
@@ -359,8 +362,14 @@ typedef struct _MPI2_SCSI_IO_REPLY {
U16 TaskTag; /*0x20 */
U16 SCSIStatusQualifier; /* 0x22 */
U32 BidirectionalTransferCount; /*0x24 */
- U32 EEDPErrorOffset; /*0x28 *//*MPI 2.5 only; Reserved in MPI 2.0*/
- U32 Reserved6; /*0x2C */
+ /* MPI 2.5+ only; Reserved in MPI 2.0 */
+ U32 EEDPErrorOffset; /* 0x28 */
+ /* MPI 2.5+ only; Reserved in MPI 2.0 */
+ U16 EEDPObservedAppTag; /* 0x2C */
+ /* MPI 2.5+ only; Reserved in MPI 2.0 */
+ U16 EEDPObservedGuard; /* 0x2E */
+ /* MPI 2.5+ only; Reserved in MPI 2.0 */
+ U32 EEDPObservedRefTag; /* 0x30 */
} MPI2_SCSI_IO_REPLY, *PTR_MPI2_SCSI_IO_REPLY,
Mpi2SCSIIOReply_t, *pMpi2SCSIIOReply_t;
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h b/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h
index cf510ed91924..8bae305bc156 100644
--- a/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h
+++ b/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h
@@ -6,7 +6,7 @@
* Title: MPI IOC, Port, Event, FW Download, and FW Upload messages
* Creation Date: October 11, 2006
*
- * mpi2_ioc.h Version: 02.00.26
+ * mpi2_ioc.h Version: 02.00.27
*
* NOTE: Names (typedefs, defines, etc.) beginning with an MPI25 or Mpi25
* prefix are for use only on MPI v2.5 products, and must not be used
@@ -134,9 +134,13 @@
* Added Encrypted Hash Extended Image.
* 12-05-13 02.00.24 Added MPI25_HASH_IMAGE_TYPE_BIOS.
* 11-18-14 02.00.25 Updated copyright information.
- * 03-16-15 02.00.26 Added MPI26_FW_HEADER_PID_FAMILY_3324_SAS and
+ * 03-16-15 02.00.26 Updated for MPI v2.6.
+ * Added MPI2_EVENT_ACTIVE_CABLE_EXCEPTION and
+ * MPI26_EVENT_DATA_ACTIVE_CABLE_EXCEPT.
+ * Added MPI26_FW_HEADER_PID_FAMILY_3324_SAS and
* MPI26_FW_HEADER_PID_FAMILY_3516_SAS.
* Added MPI26_CTRL_OP_SHUTDOWN.
+ * 08-25-15 02.00.27 Added IC ARCH Class based signature defines
* --------------------------------------------------------------------------
*/
@@ -168,7 +172,7 @@ typedef struct _MPI2_IOC_INIT_REQUEST {
U16 MsgVersion; /*0x0C */
U16 HeaderVersion; /*0x0E */
U32 Reserved5; /*0x10 */
- U16 Reserved6; /*0x14 */
+ U16 ConfigurationFlags; /* 0x14 */
U8 HostPageSize; /*0x16 */
U8 HostMSIxVectors; /*0x17 */
U16 Reserved8; /*0x18 */
@@ -516,6 +520,7 @@ typedef struct _MPI2_EVENT_NOTIFICATION_REPLY {
#define MPI2_EVENT_TEMP_THRESHOLD (0x0027)
#define MPI2_EVENT_HOST_MESSAGE (0x0028)
#define MPI2_EVENT_POWER_PERFORMANCE_CHANGE (0x0029)
+#define MPI2_EVENT_ACTIVE_CABLE_EXCEPTION (0x0034)
#define MPI2_EVENT_MIN_PRODUCT_SPECIFIC (0x006E)
#define MPI2_EVENT_MAX_PRODUCT_SPECIFIC (0x007F)
@@ -580,7 +585,7 @@ typedef struct _MPI2_EVENT_DATA_HOST_MESSAGE {
} MPI2_EVENT_DATA_HOST_MESSAGE, *PTR_MPI2_EVENT_DATA_HOST_MESSAGE,
Mpi2EventDataHostMessage_t, *pMpi2EventDataHostMessage_t;
-/*Power Performance Change Event */
+/*Power Performance Change Event data */
typedef struct _MPI2_EVENT_DATA_POWER_PERF_CHANGE {
U8 CurrentPowerMode; /*0x00 */
@@ -605,6 +610,21 @@ typedef struct _MPI2_EVENT_DATA_POWER_PERF_CHANGE {
#define MPI2_EVENT_PM_MODE_REDUCED_POWER (0x05)
#define MPI2_EVENT_PM_MODE_STANDBY (0x06)
+/* Active Cable Exception Event data */
+
+typedef struct _MPI26_EVENT_DATA_ACTIVE_CABLE_EXCEPT {
+ U32 ActiveCablePowerRequirement; /* 0x00 */
+ U8 ReasonCode; /* 0x04 */
+ U8 ReceptacleID; /* 0x05 */
+ U16 Reserved1; /* 0x06 */
+} MPI26_EVENT_DATA_ACTIVE_CABLE_EXCEPT,
+ *PTR_MPI26_EVENT_DATA_ACTIVE_CABLE_EXCEPT,
+ Mpi26EventDataActiveCableExcept_t,
+ *pMpi26EventDataActiveCableExcept_t;
+
+/* defines for ReasonCode field */
+#define MPI26_EVENT_ACTIVE_CABLE_INSUFFICIENT_POWER (0x00)
+
/*Hard Reset Received Event data */
typedef struct _MPI2_EVENT_DATA_HARD_RESET_RECEIVED {
@@ -1366,7 +1386,16 @@ typedef struct _MPI2_FW_IMAGE_HEADER {
/*Signature0 field */
#define MPI2_FW_HEADER_SIGNATURE0_OFFSET (0x04)
#define MPI2_FW_HEADER_SIGNATURE0 (0x5AFAA55A)
-#define MPI26_FW_HEADER_SIGNATURE0 (0x5AEAA55A)
+/* Last byte is defined by architecture */
+#define MPI26_FW_HEADER_SIGNATURE0_BASE (0x5AEAA500)
+#define MPI26_FW_HEADER_SIGNATURE0_ARC_0 (0x5A)
+#define MPI26_FW_HEADER_SIGNATURE0_ARC_1 (0x00)
+#define MPI26_FW_HEADER_SIGNATURE0_ARC_2 (0x01)
+/* legacy (0x5AEAA55A) */
+#define MPI26_FW_HEADER_SIGNATURE0 \
+ (MPI26_FW_HEADER_SIGNATURE0_BASE+MPI26_FW_HEADER_SIGNATURE0_ARC_0)
+#define MPI26_FW_HEADER_SIGNATURE0_3516 \
+ (MPI26_FW_HEADER_SIGNATURE0_BASE+MPI26_FW_HEADER_SIGNATURE0_ARC_1)
/*Signature1 field */
#define MPI2_FW_HEADER_SIGNATURE1_OFFSET (0x08)
@@ -1778,6 +1807,7 @@ typedef struct _MPI26_IOUNIT_CONTROL_REQUEST {
#define MPI26_CTRL_OP_SAS_PHY_LINK_RESET (0x06)
#define MPI26_CTRL_OP_SAS_PHY_HARD_RESET (0x07)
#define MPI26_CTRL_OP_PHY_CLEAR_ERROR_LOG (0x08)
+#define MPI26_CTRL_OP_LINK_CLEAR_ERROR_LOG (0x09)
#define MPI26_CTRL_OP_SAS_SEND_PRIMITIVE (0x0A)
#define MPI26_CTRL_OP_FORCE_FULL_DISCOVERY (0x0B)
#define MPI26_CTRL_OP_REMOVE_DEVICE (0x0D)
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index 8c44b9c424af..751f13edece0 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -57,6 +57,7 @@
#include <linux/dma-mapping.h>
#include <linux/io.h>
#include <linux/time.h>
+#include <linux/ktime.h>
#include <linux/kthread.h>
#include <linux/aer.h>
@@ -654,6 +655,9 @@ _base_display_event_data(struct MPT3SAS_ADAPTER *ioc,
case MPI2_EVENT_TEMP_THRESHOLD:
desc = "Temperature Threshold";
break;
+ case MPI2_EVENT_ACTIVE_CABLE_EXCEPTION:
+ desc = "Active cable exception";
+ break;
}
if (!desc)
@@ -1100,18 +1104,16 @@ _base_is_controller_msix_enabled(struct MPT3SAS_ADAPTER *ioc)
}
/**
- * mpt3sas_base_flush_reply_queues - flushing the MSIX reply queues
+ * mpt3sas_base_sync_reply_irqs - flush pending MSIX interrupts
* @ioc: per adapter object
- * Context: ISR conext
+ * Context: non ISR conext
*
- * Called when a Task Management request has completed. We want
- * to flush the other reply queues so all the outstanding IO has been
- * completed back to OS before we process the TM completetion.
+ * Called when a Task Management request has completed.
*
* Return nothing.
*/
void
-mpt3sas_base_flush_reply_queues(struct MPT3SAS_ADAPTER *ioc)
+mpt3sas_base_sync_reply_irqs(struct MPT3SAS_ADAPTER *ioc)
{
struct adapter_reply_queue *reply_q;
@@ -1122,12 +1124,13 @@ mpt3sas_base_flush_reply_queues(struct MPT3SAS_ADAPTER *ioc)
return;
list_for_each_entry(reply_q, &ioc->reply_queue_list, list) {
- if (ioc->shost_recovery)
+ if (ioc->shost_recovery || ioc->remove_host ||
+ ioc->pci_error_recovery)
return;
/* TMs are on msix_index == 0 */
if (reply_q->msix_index == 0)
continue;
- _base_interrupt(reply_q->vector, (void *)reply_q);
+ synchronize_irq(reply_q->vector);
}
}
@@ -3207,10 +3210,10 @@ _base_allocate_memory_pools(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
sg_tablesize = MPT_MIN_PHYS_SEGMENTS;
else if (sg_tablesize > MPT_MAX_PHYS_SEGMENTS) {
sg_tablesize = min_t(unsigned short, sg_tablesize,
- SCSI_MAX_SG_CHAIN_SEGMENTS);
+ SG_MAX_SEGMENTS);
pr_warn(MPT3SAS_FMT
"sg_tablesize(%u) is bigger than kernel"
- " defined SCSI_MAX_SG_SEGMENTS(%u)\n", ioc->name,
+ " defined SG_CHUNK_SIZE(%u)\n", ioc->name,
sg_tablesize, MPT_MAX_PHYS_SEGMENTS);
}
ioc->shost->sg_tablesize = sg_tablesize;
@@ -4387,7 +4390,7 @@ _base_send_ioc_init(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
Mpi2IOCInitRequest_t mpi_request;
Mpi2IOCInitReply_t mpi_reply;
int i, r = 0;
- struct timeval current_time;
+ ktime_t current_time;
u16 ioc_status;
u32 reply_post_free_array_sz = 0;
Mpi2IOCInitRDPQArrayEntry *reply_post_free_array = NULL;
@@ -4449,9 +4452,8 @@ _base_send_ioc_init(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
/* This time stamp specifies number of milliseconds
* since epoch ~ midnight January 1, 1970.
*/
- do_gettimeofday(&current_time);
- mpi_request.TimeStamp = cpu_to_le64((u64)current_time.tv_sec * 1000 +
- (current_time.tv_usec / 1000));
+ current_time = ktime_get_real();
+ mpi_request.TimeStamp = cpu_to_le64(ktime_to_ms(current_time));
if (ioc->logging_level & MPT_DEBUG_INIT) {
__le32 *mfp;
@@ -5424,6 +5426,8 @@ mpt3sas_base_attach(struct MPT3SAS_ADAPTER *ioc)
_base_unmask_events(ioc, MPI2_EVENT_IR_OPERATION_STATUS);
_base_unmask_events(ioc, MPI2_EVENT_LOG_ENTRY_ADDED);
_base_unmask_events(ioc, MPI2_EVENT_TEMP_THRESHOLD);
+ if (ioc->hba_mpi_version_belonged == MPI26_VERSION)
+ _base_unmask_events(ioc, MPI2_EVENT_ACTIVE_CABLE_EXCEPTION);
r = _base_make_ioc_operational(ioc, CAN_SLEEP);
if (r)
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h
index 32580b514b18..892c9be008b5 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.h
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.h
@@ -73,8 +73,8 @@
#define MPT3SAS_DRIVER_NAME "mpt3sas"
#define MPT3SAS_AUTHOR "Avago Technologies <MPT-FusionLinux.pdl@avagotech.com>"
#define MPT3SAS_DESCRIPTION "LSI MPT Fusion SAS 3.0 Device Driver"
-#define MPT3SAS_DRIVER_VERSION "12.100.00.00"
-#define MPT3SAS_MAJOR_VERSION 12
+#define MPT3SAS_DRIVER_VERSION "13.100.00.00"
+#define MPT3SAS_MAJOR_VERSION 13
#define MPT3SAS_MINOR_VERSION 100
#define MPT3SAS_BUILD_VERSION 0
#define MPT3SAS_RELEASE_VERSION 00
@@ -90,7 +90,7 @@
/*
* Set MPT3SAS_SG_DEPTH value based on user input.
*/
-#define MPT_MAX_PHYS_SEGMENTS SCSI_MAX_SG_SEGMENTS
+#define MPT_MAX_PHYS_SEGMENTS SG_CHUNK_SIZE
#define MPT_MIN_PHYS_SEGMENTS 16
#ifdef CONFIG_SCSI_MPT3SAS_MAX_SGE
@@ -112,6 +112,8 @@
#define MPT3SAS_SAS_QUEUE_DEPTH 254
#define MPT3SAS_RAID_QUEUE_DEPTH 128
+#define MPT3SAS_RAID_MAX_SECTORS 8192
+
#define MPT_NAME_LENGTH 32 /* generic length of strings */
#define MPT_STRING_LENGTH 64
@@ -1234,7 +1236,8 @@ void *mpt3sas_base_get_msg_frame(struct MPT3SAS_ADAPTER *ioc, u16 smid);
void *mpt3sas_base_get_sense_buffer(struct MPT3SAS_ADAPTER *ioc, u16 smid);
__le32 mpt3sas_base_get_sense_buffer_dma(struct MPT3SAS_ADAPTER *ioc,
u16 smid);
-void mpt3sas_base_flush_reply_queues(struct MPT3SAS_ADAPTER *ioc);
+
+void mpt3sas_base_sync_reply_irqs(struct MPT3SAS_ADAPTER *ioc);
/* hi-priority queue */
u16 mpt3sas_base_get_smid_hpr(struct MPT3SAS_ADAPTER *ioc, u8 cb_idx);
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index e0e4920d0fa6..6a4df5a315e9 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -174,13 +174,13 @@ struct sense_info {
* struct fw_event_work - firmware event struct
* @list: link list framework
* @work: work object (ioc->fault_reset_work_q)
- * @cancel_pending_work: flag set during reset handling
* @ioc: per adapter object
* @device_handle: device handle
* @VF_ID: virtual function id
* @VP_ID: virtual port id
* @ignore: flag meaning this event has been marked to ignore
- * @event: firmware event MPI2_EVENT_XXX defined in mpt2_ioc.h
+ * @event: firmware event MPI2_EVENT_XXX defined in mpi2_ioc.h
+ * @refcount: kref for this event
* @event_data: reply event data payload follows
*
* This object stored on ioc->fw_event_list.
@@ -188,8 +188,6 @@ struct sense_info {
struct fw_event_work {
struct list_head list;
struct work_struct work;
- u8 cancel_pending_work;
- struct delayed_work delayed_work;
struct MPT3SAS_ADAPTER *ioc;
u16 device_handle;
@@ -1911,6 +1909,14 @@ scsih_slave_configure(struct scsi_device *sdev)
(unsigned long long)raid_device->wwid,
raid_device->num_pds, ds);
+ if (shost->max_sectors > MPT3SAS_RAID_MAX_SECTORS) {
+ blk_queue_max_hw_sectors(sdev->request_queue,
+ MPT3SAS_RAID_MAX_SECTORS);
+ sdev_printk(KERN_INFO, sdev,
+ "Set queue's max_sector to: %u\n",
+ MPT3SAS_RAID_MAX_SECTORS);
+ }
+
scsih_change_queue_depth(sdev, qdepth);
/* raid transport support */
@@ -2118,7 +2124,6 @@ _scsih_tm_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
return 1;
if (ioc->tm_cmds.smid != smid)
return 1;
- mpt3sas_base_flush_reply_queues(ioc);
ioc->tm_cmds.status |= MPT3_CMD_COMPLETE;
mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
if (mpi_reply) {
@@ -2303,6 +2308,9 @@ mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, uint channel,
}
}
+ /* sync IRQs in case those were busy during flush. */
+ mpt3sas_base_sync_reply_irqs(ioc);
+
if (ioc->tm_cmds.status & MPT3_CMD_REPLY_VALID) {
mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
mpi_reply = ioc->tm_cmds.reply;
@@ -2804,12 +2812,12 @@ _scsih_fw_event_cleanup_queue(struct MPT3SAS_ADAPTER *ioc)
/*
* Wait on the fw_event to complete. If this returns 1, then
* the event was never executed, and we need a put for the
- * reference the delayed_work had on the fw_event.
+ * reference the work had on the fw_event.
*
* If it did execute, we wait for it to finish, and the put will
* happen from _firmware_event_work()
*/
- if (cancel_delayed_work_sync(&fw_event->delayed_work))
+ if (cancel_work_sync(&fw_event->work))
fw_event_work_put(fw_event);
fw_event_work_put(fw_event);
@@ -3961,7 +3969,7 @@ _scsih_setup_eedp(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
mpi_request->CDB.EEDP32.PrimaryReferenceTag =
- cpu_to_be32(scsi_get_lba(scmd));
+ cpu_to_be32(scsi_prot_ref_tag(scmd));
break;
case SCSI_PROT_DIF_TYPE3:
@@ -7850,6 +7858,7 @@ mpt3sas_scsih_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index,
Mpi2EventNotificationReply_t *mpi_reply;
u16 event;
u16 sz;
+ Mpi26EventDataActiveCableExcept_t *ActiveCableEventData;
/* events turned off due to host reset or driver unloading */
if (ioc->remove_host || ioc->pci_error_recovery)
@@ -7962,6 +7971,18 @@ mpt3sas_scsih_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index,
(Mpi2EventDataTemperature_t *)
mpi_reply->EventData);
break;
+ case MPI2_EVENT_ACTIVE_CABLE_EXCEPTION:
+ ActiveCableEventData =
+ (Mpi26EventDataActiveCableExcept_t *) mpi_reply->EventData;
+ if (ActiveCableEventData->ReasonCode ==
+ MPI26_EVENT_ACTIVE_CABLE_INSUFFICIENT_POWER)
+ pr_info(MPT3SAS_FMT "Currently an active cable with ReceptacleID %d",
+ ioc->name, ActiveCableEventData->ReceptacleID);
+ pr_info("cannot be powered and devices connected to this active cable");
+ pr_info("will not be seen. This active cable");
+ pr_info("requires %d mW of power",
+ ActiveCableEventData->ActiveCablePowerRequirement);
+ break;
default: /* ignore the rest */
return 1;
diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c
index c7c250519c4b..8280046fd1f0 100644
--- a/drivers/scsi/mvsas/mv_init.c
+++ b/drivers/scsi/mvsas/mv_init.c
@@ -704,24 +704,7 @@ static struct pci_device_id mvs_pci_table[] = {
.class_mask = 0,
.driver_data = chip_9445,
},
- {
- .vendor = PCI_VENDOR_ID_MARVELL_EXT,
- .device = 0x9485,
- .subvendor = PCI_ANY_ID,
- .subdevice = 0x9480,
- .class = 0,
- .class_mask = 0,
- .driver_data = chip_9485,
- },
- {
- .vendor = PCI_VENDOR_ID_MARVELL_EXT,
- .device = 0x9485,
- .subvendor = PCI_ANY_ID,
- .subdevice = 0x9485,
- .class = 0,
- .class_mask = 0,
- .driver_data = chip_9485,
- },
+ { PCI_VDEVICE(MARVELL_EXT, 0x9485), chip_9485 }, /* Marvell 9480/9485 (any vendor/model) */
{ PCI_VDEVICE(OCZ, 0x1021), chip_9485}, /* OCZ RevoDrive3 */
{ PCI_VDEVICE(OCZ, 0x1022), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
{ PCI_VDEVICE(OCZ, 0x1040), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
diff --git a/drivers/scsi/pas16.c b/drivers/scsi/pas16.c
index 512037e27783..2f689ae7a803 100644
--- a/drivers/scsi/pas16.c
+++ b/drivers/scsi/pas16.c
@@ -1,5 +1,3 @@
-#define PSEUDO_DMA
-
/*
* This driver adapted from Drew Eckhardt's Trantor T128 driver
*
@@ -77,7 +75,6 @@
#include <scsi/scsi_host.h>
#include "pas16.h"
-#define AUTOPROBE_IRQ
#include "NCR5380.h"
@@ -377,7 +374,7 @@ static int __init pas16_detect(struct scsi_host_template *tpnt)
instance->io_port = io_port;
- if (NCR5380_init(instance, 0))
+ if (NCR5380_init(instance, FLAG_DMA_FIXUP | FLAG_LATE_DMA_SETUP))
goto out_unregister;
NCR5380_maybe_reset_bus(instance);
@@ -460,7 +457,7 @@ static int pas16_biosparam(struct scsi_device *sdev, struct block_device *dev,
}
/*
- * Function : int NCR5380_pread (struct Scsi_Host *instance,
+ * Function : int pas16_pread (struct Scsi_Host *instance,
* unsigned char *dst, int len)
*
* Purpose : Fast 5380 pseudo-dma read function, transfers len bytes to
@@ -472,14 +469,14 @@ static int pas16_biosparam(struct scsi_device *sdev, struct block_device *dev,
* timeout.
*/
-static inline int NCR5380_pread (struct Scsi_Host *instance, unsigned char *dst,
- int len) {
+static inline int pas16_pread(struct Scsi_Host *instance,
+ unsigned char *dst, int len)
+{
register unsigned char *d = dst;
register unsigned short reg = (unsigned short) (instance->io_port +
P_DATA_REG_OFFSET);
register int i = len;
int ii = 0;
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
while ( !(inb(instance->io_port + P_STATUS_REG_OFFSET) & P_ST_RDY) )
++ii;
@@ -492,13 +489,11 @@ static inline int NCR5380_pread (struct Scsi_Host *instance, unsigned char *dst,
instance->host_no);
return -1;
}
- if (ii > hostdata->spin_max_r)
- hostdata->spin_max_r = ii;
return 0;
}
/*
- * Function : int NCR5380_pwrite (struct Scsi_Host *instance,
+ * Function : int pas16_pwrite (struct Scsi_Host *instance,
* unsigned char *src, int len)
*
* Purpose : Fast 5380 pseudo-dma write function, transfers len bytes from
@@ -510,13 +505,13 @@ static inline int NCR5380_pread (struct Scsi_Host *instance, unsigned char *dst,
* timeout.
*/
-static inline int NCR5380_pwrite (struct Scsi_Host *instance, unsigned char *src,
- int len) {
+static inline int pas16_pwrite(struct Scsi_Host *instance,
+ unsigned char *src, int len)
+{
register unsigned char *s = src;
register unsigned short reg = (instance->io_port + P_DATA_REG_OFFSET);
register int i = len;
int ii = 0;
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
while ( !((inb(instance->io_port + P_STATUS_REG_OFFSET)) & P_ST_RDY) )
++ii;
@@ -529,8 +524,6 @@ static inline int NCR5380_pwrite (struct Scsi_Host *instance, unsigned char *src
instance->host_no);
return -1;
}
- if (ii > hostdata->spin_max_w)
- hostdata->spin_max_w = ii;
return 0;
}
@@ -550,8 +543,6 @@ static struct scsi_host_template driver_template = {
.detect = pas16_detect,
.release = pas16_release,
.proc_name = "pas16",
- .show_info = pas16_show_info,
- .write_info = pas16_write_info,
.info = pas16_info,
.queuecommand = pas16_queue_command,
.eh_abort_handler = pas16_abort,
diff --git a/drivers/scsi/pas16.h b/drivers/scsi/pas16.h
index d37527717225..9fe7f33660b4 100644
--- a/drivers/scsi/pas16.h
+++ b/drivers/scsi/pas16.h
@@ -103,14 +103,15 @@
#define NCR5380_write(reg, value) ( outb((value),PAS16_io_port(reg)) )
#define NCR5380_dma_xfer_len(instance, cmd, phase) (cmd->transfersize)
+#define NCR5380_dma_recv_setup pas16_pread
+#define NCR5380_dma_send_setup pas16_pwrite
+#define NCR5380_dma_residual(instance) (0)
#define NCR5380_intr pas16_intr
#define NCR5380_queue_command pas16_queue_command
#define NCR5380_abort pas16_abort
#define NCR5380_bus_reset pas16_bus_reset
#define NCR5380_info pas16_info
-#define NCR5380_show_info pas16_show_info
-#define NCR5380_write_info pas16_write_info
/* 15 14 12 10 7 5 3
1101 0100 1010 1000 */
diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index 062ab34b86f8..6bd7bf4f4a81 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -418,8 +418,6 @@ static int pm8001_ioremap(struct pm8001_hba_info *pm8001_ha)
if (pci_resource_flags(pdev, bar) & IORESOURCE_MEM) {
pm8001_ha->io_mem[logicalBar].membase =
pci_resource_start(pdev, bar);
- pm8001_ha->io_mem[logicalBar].membase &=
- (u32)PCI_BASE_ADDRESS_MEM_MASK;
pm8001_ha->io_mem[logicalBar].memsize =
pci_resource_len(pdev, bar);
pm8001_ha->io_mem[logicalBar].memvirtaddr =
diff --git a/drivers/scsi/qla2xxx/qla_mr.c b/drivers/scsi/qla2xxx/qla_mr.c
index b5029e543b91..15dff7099955 100644
--- a/drivers/scsi/qla2xxx/qla_mr.c
+++ b/drivers/scsi/qla2xxx/qla_mr.c
@@ -6,6 +6,7 @@
*/
#include "qla_def.h"
#include <linux/delay.h>
+#include <linux/ktime.h>
#include <linux/pci.h>
#include <linux/ratelimit.h>
#include <linux/vmalloc.h>
@@ -1812,7 +1813,6 @@ qlafx00_fx_disc(scsi_qla_host_t *vha, fc_port_t *fcport, uint16_t fx_type)
struct host_system_info *phost_info;
struct register_host_info *preg_hsi;
struct new_utsname *p_sysid = NULL;
- struct timeval tv;
sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
if (!sp)
@@ -1886,8 +1886,7 @@ qlafx00_fx_disc(scsi_qla_host_t *vha, fc_port_t *fcport, uint16_t fx_type)
p_sysid->domainname, DOMNAME_LENGTH);
strncpy(phost_info->hostdriver,
QLA2XXX_VERSION, VERSION_LENGTH);
- do_gettimeofday(&tv);
- preg_hsi->utc = (uint64_t)tv.tv_sec;
+ preg_hsi->utc = (uint64_t)ktime_get_real_seconds();
ql_dbg(ql_dbg_init, vha, 0x0149,
"ISP%04X: Host registration with firmware\n",
ha->pdev->device);
diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c
index b6b4cfdd7620..54380b434b30 100644
--- a/drivers/scsi/qla2xxx/qla_nx.c
+++ b/drivers/scsi/qla2xxx/qla_nx.c
@@ -1229,7 +1229,7 @@ qla82xx_pinit_from_rom(scsi_qla_host_t *vha)
if (buf == NULL) {
ql_log(ql_log_fatal, vha, 0x010c,
"Unable to allocate memory.\n");
- return -1;
+ return -ENOMEM;
}
for (i = 0; i < n; i++) {
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index f3d69a98c725..0f9ba41e27d8 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -6,23 +6,15 @@
* anything out of the ordinary is seen.
* ^^^^^^^^^^^^^^^^^^^^^^^ Original ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
*
- * This version is more generic, simulating a variable number of disk
- * (or disk like devices) sharing a common amount of RAM. To be more
- * realistic, the simulated devices have the transport attributes of
- * SAS disks.
+ * Copyright (C) 2001 - 2016 Douglas Gilbert
*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
*
* For documentation see http://sg.danny.cz/sg/sdebug26.html
*
- * D. Gilbert (dpg) work for Magneto-Optical device test [20010421]
- * dpg: work for devfs large number of disks [20010809]
- * forked for lk 2.5 series [20011216, 20020101]
- * use vmalloc() more inquiry+mode_sense [20020302]
- * add timers for delayed responses [20020721]
- * Patrick Mansfield <patmans@us.ibm.com> max_luns+scsi_level [20021031]
- * Mike Anderson <andmike@us.ibm.com> sysfs work [20021118]
- * dpg: change style of boot options to "scsi_debug.num_tgts=2" and
- * module options to "modprobe scsi_debug num_tgts=2" [20021221]
*/
@@ -32,7 +24,7 @@
#include <linux/kernel.h>
#include <linux/errno.h>
-#include <linux/timer.h>
+#include <linux/jiffies.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/string.h>
@@ -49,6 +41,7 @@
#include <linux/interrupt.h>
#include <linux/atomic.h>
#include <linux/hrtimer.h>
+#include <linux/uuid.h>
#include <net/checksum.h>
@@ -66,8 +59,9 @@
#include "sd.h"
#include "scsi_logging.h"
-#define SCSI_DEBUG_VERSION "1.85"
-static const char *scsi_debug_version_date = "20141022";
+/* make sure inq_product_rev string corresponds to this version */
+#define SDEBUG_VERSION "1.86"
+static const char *sdebug_version_date = "20160430";
#define MY_NAME "scsi_debug"
@@ -102,7 +96,6 @@ static const char *scsi_debug_version_date = "20141022";
/* Additional Sense Code Qualifier (ASCQ) */
#define ACK_NAK_TO 0x3
-
/* Default values for driver parameters */
#define DEF_NUM_HOST 1
#define DEF_NUM_TGTS 1
@@ -111,7 +104,7 @@ static const char *scsi_debug_version_date = "20141022";
* (id 0) containing 1 logical unit (lun 0). That is 1 device.
*/
#define DEF_ATO 1
-#define DEF_DELAY 1 /* if > 0 unit is a jiffy */
+#define DEF_JDELAY 1 /* if > 0 unit is a jiffy */
#define DEF_DEV_SIZE_MB 8
#define DEF_DIF 0
#define DEF_DIX 0
@@ -131,9 +124,9 @@ static const char *scsi_debug_version_date = "20141022";
#define DEF_OPTS 0
#define DEF_OPT_BLKS 1024
#define DEF_PHYSBLK_EXP 0
-#define DEF_PTYPE 0
+#define DEF_PTYPE TYPE_DISK
#define DEF_REMOVABLE false
-#define DEF_SCSI_LEVEL 6 /* INQUIRY, byte2 [6->SPC-4] */
+#define DEF_SCSI_LEVEL 7 /* INQUIRY, byte2 [6->SPC-4; 7->SPC-5] */
#define DEF_SECTOR_SIZE 512
#define DEF_UNMAP_ALIGNMENT 0
#define DEF_UNMAP_GRANULARITY 1
@@ -143,43 +136,54 @@ static const char *scsi_debug_version_date = "20141022";
#define DEF_VPD_USE_HOSTNO 1
#define DEF_WRITESAME_LENGTH 0xFFFF
#define DEF_STRICT 0
-#define DELAY_OVERRIDDEN -9999
-
-/* bit mask values for scsi_debug_opts */
-#define SCSI_DEBUG_OPT_NOISE 1
-#define SCSI_DEBUG_OPT_MEDIUM_ERR 2
-#define SCSI_DEBUG_OPT_TIMEOUT 4
-#define SCSI_DEBUG_OPT_RECOVERED_ERR 8
-#define SCSI_DEBUG_OPT_TRANSPORT_ERR 16
-#define SCSI_DEBUG_OPT_DIF_ERR 32
-#define SCSI_DEBUG_OPT_DIX_ERR 64
-#define SCSI_DEBUG_OPT_MAC_TIMEOUT 128
-#define SCSI_DEBUG_OPT_SHORT_TRANSFER 0x100
-#define SCSI_DEBUG_OPT_Q_NOISE 0x200
-#define SCSI_DEBUG_OPT_ALL_TSF 0x400
-#define SCSI_DEBUG_OPT_RARE_TSF 0x800
-#define SCSI_DEBUG_OPT_N_WCE 0x1000
-#define SCSI_DEBUG_OPT_RESET_NOISE 0x2000
-#define SCSI_DEBUG_OPT_NO_CDB_NOISE 0x4000
-#define SCSI_DEBUG_OPT_ALL_NOISE (0x1 | 0x200 | 0x2000)
+#define DEF_STATISTICS false
+#define DEF_SUBMIT_QUEUES 1
+#define DEF_UUID_CTL 0
+#define JDELAY_OVERRIDDEN -9999
+
+#define SDEBUG_LUN_0_VAL 0
+
+/* bit mask values for sdebug_opts */
+#define SDEBUG_OPT_NOISE 1
+#define SDEBUG_OPT_MEDIUM_ERR 2
+#define SDEBUG_OPT_TIMEOUT 4
+#define SDEBUG_OPT_RECOVERED_ERR 8
+#define SDEBUG_OPT_TRANSPORT_ERR 16
+#define SDEBUG_OPT_DIF_ERR 32
+#define SDEBUG_OPT_DIX_ERR 64
+#define SDEBUG_OPT_MAC_TIMEOUT 128
+#define SDEBUG_OPT_SHORT_TRANSFER 0x100
+#define SDEBUG_OPT_Q_NOISE 0x200
+#define SDEBUG_OPT_ALL_TSF 0x400
+#define SDEBUG_OPT_RARE_TSF 0x800
+#define SDEBUG_OPT_N_WCE 0x1000
+#define SDEBUG_OPT_RESET_NOISE 0x2000
+#define SDEBUG_OPT_NO_CDB_NOISE 0x4000
+#define SDEBUG_OPT_ALL_NOISE (SDEBUG_OPT_NOISE | SDEBUG_OPT_Q_NOISE | \
+ SDEBUG_OPT_RESET_NOISE)
+#define SDEBUG_OPT_ALL_INJECTING (SDEBUG_OPT_RECOVERED_ERR | \
+ SDEBUG_OPT_TRANSPORT_ERR | \
+ SDEBUG_OPT_DIF_ERR | SDEBUG_OPT_DIX_ERR | \
+ SDEBUG_OPT_SHORT_TRANSFER)
/* When "every_nth" > 0 then modulo "every_nth" commands:
- * - a no response is simulated if SCSI_DEBUG_OPT_TIMEOUT is set
+ * - a missing response is simulated if SDEBUG_OPT_TIMEOUT is set
* - a RECOVERED_ERROR is simulated on successful read and write
- * commands if SCSI_DEBUG_OPT_RECOVERED_ERR is set.
+ * commands if SDEBUG_OPT_RECOVERED_ERR is set.
* - a TRANSPORT_ERROR is simulated on successful read and write
- * commands if SCSI_DEBUG_OPT_TRANSPORT_ERR is set.
+ * commands if SDEBUG_OPT_TRANSPORT_ERR is set.
*
* When "every_nth" < 0 then after "- every_nth" commands:
- * - a no response is simulated if SCSI_DEBUG_OPT_TIMEOUT is set
+ * - a missing response is simulated if SDEBUG_OPT_TIMEOUT is set
* - a RECOVERED_ERROR is simulated on successful read and write
- * commands if SCSI_DEBUG_OPT_RECOVERED_ERR is set.
+ * commands if SDEBUG_OPT_RECOVERED_ERR is set.
* - a TRANSPORT_ERROR is simulated on successful read and write
- * commands if SCSI_DEBUG_OPT_TRANSPORT_ERR is set.
- * This will continue until some other action occurs (e.g. the user
- * writing a new value (other than -1 or 1) to every_nth via sysfs).
+ * commands if _DEBUG_OPT_TRANSPORT_ERR is set.
+ * This will continue on every subsequent command until some other action
+ * occurs (e.g. the user * writing a new value (other than -1 or 1) to
+ * every_nth via sysfs).
*/
-/* As indicated in SAM-5 and SPC-4 Unit Attentions (UAs)are returned in
+/* As indicated in SAM-5 and SPC-4 Unit Attentions (UAs) are returned in
* priority order. In the subset implemented here lower numbers have higher
* priority. The UA numbers should be a sequence starting from 0 with
* SDEBUG_NUM_UAS being 1 higher than the highest numbered UA. */
@@ -192,11 +196,7 @@ static const char *scsi_debug_version_date = "20141022";
#define SDEBUG_UA_MICROCODE_CHANGED_WO_RESET 6
#define SDEBUG_NUM_UAS 7
-/* for check_readiness() */
-#define UAS_ONLY 1 /* check for UAs only */
-#define UAS_TUR 0 /* if no UAs then check if media access possible */
-
-/* when 1==SCSI_DEBUG_OPT_MEDIUM_ERR, a medium error is simulated at this
+/* when 1==SDEBUG_OPT_MEDIUM_ERR, a medium error is simulated at this
* sector on read commands: */
#define OPT_MEDIUM_ERR_ADDR 0x1234 /* that's sector 4660 in decimal */
#define OPT_MEDIUM_ERR_NUM 10 /* number of consecutive medium errs */
@@ -205,21 +205,108 @@ static const char *scsi_debug_version_date = "20141022";
* or "peripheral device" addressing (value 0) */
#define SAM2_LUN_ADDRESS_METHOD 0
-/* SCSI_DEBUG_CANQUEUE is the maximum number of commands that can be queued
- * (for response) at one time. Can be reduced by max_queue option. Command
- * responses are not queued when delay=0 and ndelay=0. The per-device
- * DEF_CMD_PER_LUN can be changed via sysfs:
- * /sys/class/scsi_device/<h:c:t:l>/device/queue_depth but cannot exceed
- * SCSI_DEBUG_CANQUEUE. */
-#define SCSI_DEBUG_CANQUEUE_WORDS 9 /* a WORD is bits in a long */
-#define SCSI_DEBUG_CANQUEUE (SCSI_DEBUG_CANQUEUE_WORDS * BITS_PER_LONG)
+/* SDEBUG_CANQUEUE is the maximum number of commands that can be queued
+ * (for response) per submit queue at one time. Can be reduced by max_queue
+ * option. Command responses are not queued when jdelay=0 and ndelay=0. The
+ * per-device DEF_CMD_PER_LUN can be changed via sysfs:
+ * /sys/class/scsi_device/<h:c:t:l>/device/queue_depth
+ * but cannot exceed SDEBUG_CANQUEUE .
+ */
+#define SDEBUG_CANQUEUE_WORDS 3 /* a WORD is bits in a long */
+#define SDEBUG_CANQUEUE (SDEBUG_CANQUEUE_WORDS * BITS_PER_LONG)
#define DEF_CMD_PER_LUN 255
-#if DEF_CMD_PER_LUN > SCSI_DEBUG_CANQUEUE
-#warning "Expect DEF_CMD_PER_LUN <= SCSI_DEBUG_CANQUEUE"
-#endif
+#define F_D_IN 1
+#define F_D_OUT 2
+#define F_D_OUT_MAYBE 4 /* WRITE SAME, NDOB bit */
+#define F_D_UNKN 8
+#define F_RL_WLUN_OK 0x10
+#define F_SKIP_UA 0x20
+#define F_DELAY_OVERR 0x40
+#define F_SA_LOW 0x80 /* cdb byte 1, bits 4 to 0 */
+#define F_SA_HIGH 0x100 /* as used by variable length cdbs */
+#define F_INV_OP 0x200
+#define F_FAKE_RW 0x400
+#define F_M_ACCESS 0x800 /* media access */
+
+#define FF_RESPOND (F_RL_WLUN_OK | F_SKIP_UA | F_DELAY_OVERR)
+#define FF_DIRECT_IO (F_M_ACCESS | F_FAKE_RW)
+#define FF_SA (F_SA_HIGH | F_SA_LOW)
+
+#define SDEBUG_MAX_PARTS 4
+
+#define SDEBUG_MAX_CMD_LEN 32
+
+
+struct sdebug_dev_info {
+ struct list_head dev_list;
+ unsigned int channel;
+ unsigned int target;
+ u64 lun;
+ uuid_be lu_name;
+ struct sdebug_host_info *sdbg_host;
+ unsigned long uas_bm[1];
+ atomic_t num_in_q;
+ atomic_t stopped;
+ bool used;
+};
+
+struct sdebug_host_info {
+ struct list_head host_list;
+ struct Scsi_Host *shost;
+ struct device dev;
+ struct list_head dev_info_list;
+};
+
+#define to_sdebug_host(d) \
+ container_of(d, struct sdebug_host_info, dev)
+
+struct sdebug_defer {
+ struct hrtimer hrt;
+ struct execute_work ew;
+ int sqa_idx; /* index of sdebug_queue array */
+ int qc_idx; /* index of sdebug_queued_cmd array within sqa_idx */
+ int issuing_cpu;
+};
+
+struct sdebug_queued_cmd {
+ /* corresponding bit set in in_use_bm[] in owning struct sdebug_queue
+ * instance indicates this slot is in use.
+ */
+ struct sdebug_defer *sd_dp;
+ struct scsi_cmnd *a_cmnd;
+ unsigned int inj_recovered:1;
+ unsigned int inj_transport:1;
+ unsigned int inj_dif:1;
+ unsigned int inj_dix:1;
+ unsigned int inj_short:1;
+};
+
+struct sdebug_queue {
+ struct sdebug_queued_cmd qc_arr[SDEBUG_CANQUEUE];
+ unsigned long in_use_bm[SDEBUG_CANQUEUE_WORDS];
+ spinlock_t qc_lock;
+ atomic_t blocked; /* to temporarily stop more being queued */
+};
+
+static atomic_t sdebug_cmnd_count; /* number of incoming commands */
+static atomic_t sdebug_completions; /* count of deferred completions */
+static atomic_t sdebug_miss_cpus; /* submission + completion cpus differ */
+static atomic_t sdebug_a_tsf; /* 'almost task set full' counter */
+
+struct opcode_info_t {
+ u8 num_attached; /* 0 if this is it (i.e. a leaf); use 0xff */
+ /* for terminating element */
+ u8 opcode; /* if num_attached > 0, preferred */
+ u16 sa; /* service action */
+ u32 flags; /* OR-ed set of SDEB_F_* */
+ int (*pfp)(struct scsi_cmnd *, struct sdebug_dev_info *);
+ const struct opcode_info_t *arrp; /* num_attached elements or NULL */
+ u8 len_mask[16]; /* len=len_mask[0], then mask for cdb[1]... */
+ /* ignore cdb bytes after position 15 */
+};
-/* SCSI opcodes (first byte of cdb) mapped onto these indexes */
+/* SCSI opcodes (first byte of cdb) of interest mapped onto these indexes */
enum sdeb_opcode_index {
SDEB_I_INVALID_OPCODE = 0,
SDEB_I_INQUIRY = 1,
@@ -254,6 +341,7 @@ enum sdeb_opcode_index {
SDEB_I_LAST_ELEMENT = 30, /* keep this last */
};
+
static const unsigned char opcode_ind_arr[256] = {
/* 0x0; 0x0->0x1f: 6 byte cdbs */
SDEB_I_TEST_UNIT_READY, SDEB_I_REZERO_UNIT, 0, SDEB_I_REQUEST_SENSE,
@@ -274,7 +362,7 @@ static const unsigned char opcode_ind_arr[256] = {
0, 0, 0, SDEB_I_XDWRITEREAD, 0, SDEB_I_MODE_SELECT, SDEB_I_RESERVE,
SDEB_I_RELEASE,
0, 0, SDEB_I_MODE_SENSE, 0, 0, 0, 0, 0,
-/* 0x60; 0x60->0x7d are reserved */
+/* 0x60; 0x60->0x7d are reserved, 0x7e is "extended cdb" */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, SDEB_I_VARIABLE_LEN,
@@ -297,24 +385,6 @@ static const unsigned char opcode_ind_arr[256] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
};
-#define F_D_IN 1
-#define F_D_OUT 2
-#define F_D_OUT_MAYBE 4 /* WRITE SAME, NDOB bit */
-#define F_D_UNKN 8
-#define F_RL_WLUN_OK 0x10
-#define F_SKIP_UA 0x20
-#define F_DELAY_OVERR 0x40
-#define F_SA_LOW 0x80 /* cdb byte 1, bits 4 to 0 */
-#define F_SA_HIGH 0x100 /* as used by variable length cdbs */
-#define F_INV_OP 0x200
-#define F_FAKE_RW 0x400
-#define F_M_ACCESS 0x800 /* media access */
-
-#define FF_RESPOND (F_RL_WLUN_OK | F_SKIP_UA | F_DELAY_OVERR)
-#define FF_DIRECT_IO (F_M_ACCESS | F_FAKE_RW)
-#define FF_SA (F_SA_HIGH | F_SA_LOW)
-
-struct sdebug_dev_info;
static int resp_inquiry(struct scsi_cmnd *, struct sdebug_dev_info *);
static int resp_report_luns(struct scsi_cmnd *, struct sdebug_dev_info *);
static int resp_requests(struct scsi_cmnd *, struct sdebug_dev_info *);
@@ -337,18 +407,6 @@ static int resp_xdwriteread_10(struct scsi_cmnd *, struct sdebug_dev_info *);
static int resp_comp_write(struct scsi_cmnd *, struct sdebug_dev_info *);
static int resp_write_buffer(struct scsi_cmnd *, struct sdebug_dev_info *);
-struct opcode_info_t {
- u8 num_attached; /* 0 if this is it (i.e. a leaf); use 0xff
- * for terminating element */
- u8 opcode; /* if num_attached > 0, preferred */
- u16 sa; /* service action */
- u32 flags; /* OR-ed set of SDEB_F_* */
- int (*pfp)(struct scsi_cmnd *, struct sdebug_dev_info *);
- const struct opcode_info_t *arrp; /* num_attached elements or NULL */
- u8 len_mask[16]; /* len=len_mask[0], then mask for cdb[1]... */
- /* ignore cdb bytes after position 15 */
-};
-
static const struct opcode_info_t msense_iarr[1] = {
{0, 0x1a, 0, F_D_IN, NULL, NULL,
{6, 0xe8, 0xff, 0xff, 0xff, 0xc7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
@@ -509,61 +567,52 @@ static const struct opcode_info_t opcode_info_arr[SDEB_I_LAST_ELEMENT + 1] = {
{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
};
-struct sdebug_scmd_extra_t {
- bool inj_recovered;
- bool inj_transport;
- bool inj_dif;
- bool inj_dix;
- bool inj_short;
-};
-
-static int scsi_debug_add_host = DEF_NUM_HOST;
-static int scsi_debug_ato = DEF_ATO;
-static int scsi_debug_delay = DEF_DELAY;
-static int scsi_debug_dev_size_mb = DEF_DEV_SIZE_MB;
-static int scsi_debug_dif = DEF_DIF;
-static int scsi_debug_dix = DEF_DIX;
-static int scsi_debug_dsense = DEF_D_SENSE;
-static int scsi_debug_every_nth = DEF_EVERY_NTH;
-static int scsi_debug_fake_rw = DEF_FAKE_RW;
-static unsigned int scsi_debug_guard = DEF_GUARD;
-static int scsi_debug_lowest_aligned = DEF_LOWEST_ALIGNED;
-static int scsi_debug_max_luns = DEF_MAX_LUNS;
-static int scsi_debug_max_queue = SCSI_DEBUG_CANQUEUE;
+static int sdebug_add_host = DEF_NUM_HOST;
+static int sdebug_ato = DEF_ATO;
+static int sdebug_jdelay = DEF_JDELAY; /* if > 0 then unit is jiffies */
+static int sdebug_dev_size_mb = DEF_DEV_SIZE_MB;
+static int sdebug_dif = DEF_DIF;
+static int sdebug_dix = DEF_DIX;
+static int sdebug_dsense = DEF_D_SENSE;
+static int sdebug_every_nth = DEF_EVERY_NTH;
+static int sdebug_fake_rw = DEF_FAKE_RW;
+static unsigned int sdebug_guard = DEF_GUARD;
+static int sdebug_lowest_aligned = DEF_LOWEST_ALIGNED;
+static int sdebug_max_luns = DEF_MAX_LUNS;
+static int sdebug_max_queue = SDEBUG_CANQUEUE; /* per submit queue */
static atomic_t retired_max_queue; /* if > 0 then was prior max_queue */
-static int scsi_debug_ndelay = DEF_NDELAY;
-static int scsi_debug_no_lun_0 = DEF_NO_LUN_0;
-static int scsi_debug_no_uld = 0;
-static int scsi_debug_num_parts = DEF_NUM_PARTS;
-static int scsi_debug_num_tgts = DEF_NUM_TGTS; /* targets per host */
-static int scsi_debug_opt_blks = DEF_OPT_BLKS;
-static int scsi_debug_opts = DEF_OPTS;
-static int scsi_debug_physblk_exp = DEF_PHYSBLK_EXP;
-static int scsi_debug_ptype = DEF_PTYPE; /* SCSI peripheral type (0==disk) */
-static int scsi_debug_scsi_level = DEF_SCSI_LEVEL;
-static int scsi_debug_sector_size = DEF_SECTOR_SIZE;
-static int scsi_debug_virtual_gb = DEF_VIRTUAL_GB;
-static int scsi_debug_vpd_use_hostno = DEF_VPD_USE_HOSTNO;
-static unsigned int scsi_debug_lbpu = DEF_LBPU;
-static unsigned int scsi_debug_lbpws = DEF_LBPWS;
-static unsigned int scsi_debug_lbpws10 = DEF_LBPWS10;
-static unsigned int scsi_debug_lbprz = DEF_LBPRZ;
-static unsigned int scsi_debug_unmap_alignment = DEF_UNMAP_ALIGNMENT;
-static unsigned int scsi_debug_unmap_granularity = DEF_UNMAP_GRANULARITY;
-static unsigned int scsi_debug_unmap_max_blocks = DEF_UNMAP_MAX_BLOCKS;
-static unsigned int scsi_debug_unmap_max_desc = DEF_UNMAP_MAX_DESC;
-static unsigned int scsi_debug_write_same_length = DEF_WRITESAME_LENGTH;
-static bool scsi_debug_removable = DEF_REMOVABLE;
-static bool scsi_debug_clustering;
-static bool scsi_debug_host_lock = DEF_HOST_LOCK;
-static bool scsi_debug_strict = DEF_STRICT;
+static int sdebug_ndelay = DEF_NDELAY; /* if > 0 then unit is nanoseconds */
+static int sdebug_no_lun_0 = DEF_NO_LUN_0;
+static int sdebug_no_uld;
+static int sdebug_num_parts = DEF_NUM_PARTS;
+static int sdebug_num_tgts = DEF_NUM_TGTS; /* targets per host */
+static int sdebug_opt_blks = DEF_OPT_BLKS;
+static int sdebug_opts = DEF_OPTS;
+static int sdebug_physblk_exp = DEF_PHYSBLK_EXP;
+static int sdebug_ptype = DEF_PTYPE; /* SCSI peripheral device type */
+static int sdebug_scsi_level = DEF_SCSI_LEVEL;
+static int sdebug_sector_size = DEF_SECTOR_SIZE;
+static int sdebug_virtual_gb = DEF_VIRTUAL_GB;
+static int sdebug_vpd_use_hostno = DEF_VPD_USE_HOSTNO;
+static unsigned int sdebug_lbpu = DEF_LBPU;
+static unsigned int sdebug_lbpws = DEF_LBPWS;
+static unsigned int sdebug_lbpws10 = DEF_LBPWS10;
+static unsigned int sdebug_lbprz = DEF_LBPRZ;
+static unsigned int sdebug_unmap_alignment = DEF_UNMAP_ALIGNMENT;
+static unsigned int sdebug_unmap_granularity = DEF_UNMAP_GRANULARITY;
+static unsigned int sdebug_unmap_max_blocks = DEF_UNMAP_MAX_BLOCKS;
+static unsigned int sdebug_unmap_max_desc = DEF_UNMAP_MAX_DESC;
+static unsigned int sdebug_write_same_length = DEF_WRITESAME_LENGTH;
+static int sdebug_uuid_ctl = DEF_UUID_CTL;
+static bool sdebug_removable = DEF_REMOVABLE;
+static bool sdebug_clustering;
+static bool sdebug_host_lock = DEF_HOST_LOCK;
+static bool sdebug_strict = DEF_STRICT;
static bool sdebug_any_injecting_opt;
-
-static atomic_t sdebug_cmnd_count;
-static atomic_t sdebug_completions;
-static atomic_t sdebug_a_tsf; /* counter of 'almost' TSFs */
-
-#define DEV_READONLY(TGT) (0)
+static bool sdebug_verbose;
+static bool have_dif_prot;
+static bool sdebug_statistics = DEF_STATISTICS;
+static bool sdebug_mq_active;
static unsigned int sdebug_store_sectors;
static sector_t sdebug_capacity; /* in sectors */
@@ -574,59 +623,10 @@ static int sdebug_heads; /* heads per disk */
static int sdebug_cylinders_per; /* cylinders per surface */
static int sdebug_sectors_per; /* sectors per cylinder */
-#define SDEBUG_MAX_PARTS 4
-
-#define SCSI_DEBUG_MAX_CMD_LEN 32
-
-static unsigned int scsi_debug_lbp(void)
-{
- return ((0 == scsi_debug_fake_rw) &&
- (scsi_debug_lbpu | scsi_debug_lbpws | scsi_debug_lbpws10));
-}
-
-struct sdebug_dev_info {
- struct list_head dev_list;
- unsigned int channel;
- unsigned int target;
- u64 lun;
- struct sdebug_host_info *sdbg_host;
- unsigned long uas_bm[1];
- atomic_t num_in_q;
- char stopped; /* TODO: should be atomic */
- bool used;
-};
-
-struct sdebug_host_info {
- struct list_head host_list;
- struct Scsi_Host *shost;
- struct device dev;
- struct list_head dev_info_list;
-};
-
-#define to_sdebug_host(d) \
- container_of(d, struct sdebug_host_info, dev)
-
static LIST_HEAD(sdebug_host_list);
static DEFINE_SPINLOCK(sdebug_host_list_lock);
-
-struct sdebug_hrtimer { /* ... is derived from hrtimer */
- struct hrtimer hrt; /* must be first element */
- int qa_indx;
-};
-
-struct sdebug_queued_cmd {
- /* in_use flagged by a bit in queued_in_use_bm[] */
- struct timer_list *cmnd_timerp;
- struct tasklet_struct *tletp;
- struct sdebug_hrtimer *sd_hrtp;
- struct scsi_cmnd * a_cmnd;
-};
-static struct sdebug_queued_cmd queued_arr[SCSI_DEBUG_CANQUEUE];
-static unsigned long queued_in_use_bm[SCSI_DEBUG_CANQUEUE_WORDS];
-
-
-static unsigned char * fake_storep; /* ramdisk storage */
+static unsigned char *fake_storep; /* ramdisk storage */
static struct sd_dif_tuple *dif_storep; /* protection info */
static void *map_storep; /* provisioning map */
@@ -640,7 +640,9 @@ static int dix_writes;
static int dix_reads;
static int dif_errors;
-static DEFINE_SPINLOCK(queued_arr_lock);
+static int submit_queues = DEF_SUBMIT_QUEUES; /* > 1 for multi-queue (mq) */
+static struct sdebug_queue *sdebug_q_arr; /* ptr to array of submit queues */
+
static DEFINE_RWLOCK(atomic_rw);
static char sdebug_proc_name[] = MY_NAME;
@@ -662,19 +664,22 @@ static const int illegal_condition_result =
static const int device_qfull_result =
(DID_OK << 16) | (COMMAND_COMPLETE << 8) | SAM_STAT_TASK_SET_FULL;
-static unsigned char caching_pg[] = {0x8, 18, 0x14, 0, 0xff, 0xff, 0, 0,
- 0xff, 0xff, 0xff, 0xff, 0x80, 0x14, 0, 0,
- 0, 0, 0, 0};
-static unsigned char ctrl_m_pg[] = {0xa, 10, 2, 0, 0, 0, 0, 0,
- 0, 0, 0x2, 0x4b};
-static unsigned char iec_m_pg[] = {0x1c, 0xa, 0x08, 0, 0, 0, 0, 0,
- 0, 0, 0x0, 0x0};
+
+/* Only do the extra work involved in logical block provisioning if one or
+ * more of the lbpu, lbpws or lbpws10 parameters are given and we are doing
+ * real reads and writes (i.e. not skipping them for speed).
+ */
+static inline bool scsi_debug_lbp(void)
+{
+ return 0 == sdebug_fake_rw &&
+ (sdebug_lbpu || sdebug_lbpws || sdebug_lbpws10);
+}
static void *fake_store(unsigned long long lba)
{
lba = do_div(lba, sdebug_store_sectors);
- return fake_storep + lba * scsi_debug_sector_size;
+ return fake_storep + lba * sdebug_sector_size;
}
static struct sd_dif_tuple *dif_store(sector_t sector)
@@ -684,9 +689,6 @@ static struct sd_dif_tuple *dif_store(sector_t sector)
return dif_storep + sector;
}
-static int sdebug_add_adapter(void);
-static void sdebug_remove_adapter(void);
-
static void sdebug_max_tgts_luns(void)
{
struct sdebug_host_info *sdbg_host;
@@ -696,11 +698,11 @@ static void sdebug_max_tgts_luns(void)
list_for_each_entry(sdbg_host, &sdebug_host_list, host_list) {
hpnt = sdbg_host->shost;
if ((hpnt->this_id >= 0) &&
- (scsi_debug_num_tgts > hpnt->this_id))
- hpnt->max_id = scsi_debug_num_tgts + 1;
+ (sdebug_num_tgts > hpnt->this_id))
+ hpnt->max_id = sdebug_num_tgts + 1;
else
- hpnt->max_id = scsi_debug_num_tgts;
- /* scsi_debug_max_luns; */
+ hpnt->max_id = sdebug_num_tgts;
+ /* sdebug_max_luns; */
hpnt->max_lun = SCSI_W_LUN_REPORT_LUNS + 1;
}
spin_unlock(&sdebug_host_list_lock);
@@ -709,9 +711,9 @@ static void sdebug_max_tgts_luns(void)
enum sdeb_cmd_data {SDEB_IN_DATA = 0, SDEB_IN_CDB = 1};
/* Set in_bit to -1 to indicate no bit position of invalid field */
-static void
-mk_sense_invalid_fld(struct scsi_cmnd *scp, enum sdeb_cmd_data c_d,
- int in_byte, int in_bit)
+static void mk_sense_invalid_fld(struct scsi_cmnd *scp,
+ enum sdeb_cmd_data c_d,
+ int in_byte, int in_bit)
{
unsigned char *sbuff;
u8 sks[4];
@@ -725,8 +727,7 @@ mk_sense_invalid_fld(struct scsi_cmnd *scp, enum sdeb_cmd_data c_d,
}
asc = c_d ? INVALID_FIELD_IN_CDB : INVALID_FIELD_IN_PARAM_LIST;
memset(sbuff, 0, SCSI_SENSE_BUFFERSIZE);
- scsi_build_sense_buffer(scsi_debug_dsense, sbuff, ILLEGAL_REQUEST,
- asc, 0);
+ scsi_build_sense_buffer(sdebug_dsense, sbuff, ILLEGAL_REQUEST, asc, 0);
memset(sks, 0, sizeof(sks));
sks[0] = 0x80;
if (c_d)
@@ -736,7 +737,7 @@ mk_sense_invalid_fld(struct scsi_cmnd *scp, enum sdeb_cmd_data c_d,
sks[0] |= 0x7 & in_bit;
}
put_unaligned_be16(in_byte, sks + 1);
- if (scsi_debug_dsense) {
+ if (sdebug_dsense) {
sl = sbuff[7] + 8;
sbuff[7] = sl;
sbuff[sl] = 0x2;
@@ -744,7 +745,7 @@ mk_sense_invalid_fld(struct scsi_cmnd *scp, enum sdeb_cmd_data c_d,
memcpy(sbuff + sl + 4, sks, 3);
} else
memcpy(sbuff + 15, sks, 3);
- if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
+ if (sdebug_verbose)
sdev_printk(KERN_INFO, scp->device, "%s: [sense_key,asc,ascq"
"]: [0x5,0x%x,0x0] %c byte=%d, bit=%d\n",
my_name, asc, c_d ? 'C' : 'D', in_byte, in_bit);
@@ -762,23 +763,22 @@ static void mk_sense_buffer(struct scsi_cmnd *scp, int key, int asc, int asq)
}
memset(sbuff, 0, SCSI_SENSE_BUFFERSIZE);
- scsi_build_sense_buffer(scsi_debug_dsense, sbuff, key, asc, asq);
+ scsi_build_sense_buffer(sdebug_dsense, sbuff, key, asc, asq);
- if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
+ if (sdebug_verbose)
sdev_printk(KERN_INFO, scp->device,
"%s: [sense_key,asc,ascq]: [0x%x,0x%x,0x%x]\n",
my_name, key, asc, asq);
}
-static void
-mk_sense_invalid_opcode(struct scsi_cmnd *scp)
+static void mk_sense_invalid_opcode(struct scsi_cmnd *scp)
{
mk_sense_buffer(scp, ILLEGAL_REQUEST, INVALID_OPCODE, 0);
}
static int scsi_debug_ioctl(struct scsi_device *dev, int cmd, void __user *arg)
{
- if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts) {
+ if (sdebug_verbose) {
if (0x1261 == cmd)
sdev_printk(KERN_INFO, dev,
"%s: BLKFLSBUF [0x1261]\n", __func__);
@@ -810,11 +810,9 @@ static void clear_luns_changed_on_target(struct sdebug_dev_info *devip)
spin_unlock(&sdebug_host_list_lock);
}
-static int check_readiness(struct scsi_cmnd *SCpnt, int uas_only,
- struct sdebug_dev_info * devip)
+static int make_ua(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
{
int k;
- bool debug = !!(SCSI_DEBUG_OPT_NOISE & scsi_debug_opts);
k = find_first_bit(devip->uas_bm, SDEBUG_NUM_UAS);
if (k != SDEBUG_NUM_UAS) {
@@ -822,40 +820,41 @@ static int check_readiness(struct scsi_cmnd *SCpnt, int uas_only,
switch (k) {
case SDEBUG_UA_POR:
- mk_sense_buffer(SCpnt, UNIT_ATTENTION,
- UA_RESET_ASC, POWER_ON_RESET_ASCQ);
- if (debug)
+ mk_sense_buffer(scp, UNIT_ATTENTION, UA_RESET_ASC,
+ POWER_ON_RESET_ASCQ);
+ if (sdebug_verbose)
cp = "power on reset";
break;
case SDEBUG_UA_BUS_RESET:
- mk_sense_buffer(SCpnt, UNIT_ATTENTION,
- UA_RESET_ASC, BUS_RESET_ASCQ);
- if (debug)
+ mk_sense_buffer(scp, UNIT_ATTENTION, UA_RESET_ASC,
+ BUS_RESET_ASCQ);
+ if (sdebug_verbose)
cp = "bus reset";
break;
case SDEBUG_UA_MODE_CHANGED:
- mk_sense_buffer(SCpnt, UNIT_ATTENTION,
- UA_CHANGED_ASC, MODE_CHANGED_ASCQ);
- if (debug)
+ mk_sense_buffer(scp, UNIT_ATTENTION, UA_CHANGED_ASC,
+ MODE_CHANGED_ASCQ);
+ if (sdebug_verbose)
cp = "mode parameters changed";
break;
case SDEBUG_UA_CAPACITY_CHANGED:
- mk_sense_buffer(SCpnt, UNIT_ATTENTION,
- UA_CHANGED_ASC, CAPACITY_CHANGED_ASCQ);
- if (debug)
+ mk_sense_buffer(scp, UNIT_ATTENTION, UA_CHANGED_ASC,
+ CAPACITY_CHANGED_ASCQ);
+ if (sdebug_verbose)
cp = "capacity data changed";
break;
case SDEBUG_UA_MICROCODE_CHANGED:
- mk_sense_buffer(SCpnt, UNIT_ATTENTION,
- TARGET_CHANGED_ASC, MICROCODE_CHANGED_ASCQ);
- if (debug)
+ mk_sense_buffer(scp, UNIT_ATTENTION,
+ TARGET_CHANGED_ASC,
+ MICROCODE_CHANGED_ASCQ);
+ if (sdebug_verbose)
cp = "microcode has been changed";
break;
case SDEBUG_UA_MICROCODE_CHANGED_WO_RESET:
- mk_sense_buffer(SCpnt, UNIT_ATTENTION,
+ mk_sense_buffer(scp, UNIT_ATTENTION,
TARGET_CHANGED_ASC,
MICROCODE_CHANGED_WO_RESET_ASCQ);
- if (debug)
+ if (sdebug_verbose)
cp = "microcode has been changed without reset";
break;
case SDEBUG_UA_LUNS_CHANGED:
@@ -864,40 +863,30 @@ static int check_readiness(struct scsi_cmnd *SCpnt, int uas_only,
* ASC/ASCQ REPORTED LUNS DATA HAS CHANGED on every LUN
* on the target, until a REPORT LUNS command is
* received. SPC-4 behavior is to report it only once.
- * NOTE: scsi_debug_scsi_level does not use the same
+ * NOTE: sdebug_scsi_level does not use the same
* values as struct scsi_device->scsi_level.
*/
- if (scsi_debug_scsi_level >= 6) /* SPC-4 and above */
+ if (sdebug_scsi_level >= 6) /* SPC-4 and above */
clear_luns_changed_on_target(devip);
- mk_sense_buffer(SCpnt, UNIT_ATTENTION,
+ mk_sense_buffer(scp, UNIT_ATTENTION,
TARGET_CHANGED_ASC,
LUNS_CHANGED_ASCQ);
- if (debug)
+ if (sdebug_verbose)
cp = "reported luns data has changed";
break;
default:
- pr_warn("%s: unexpected unit attention code=%d\n",
- __func__, k);
- if (debug)
+ pr_warn("unexpected unit attention code=%d\n", k);
+ if (sdebug_verbose)
cp = "unknown";
break;
}
clear_bit(k, devip->uas_bm);
- if (debug)
- sdev_printk(KERN_INFO, SCpnt->device,
+ if (sdebug_verbose)
+ sdev_printk(KERN_INFO, scp->device,
"%s reports: Unit attention: %s\n",
my_name, cp);
return check_condition_result;
}
- if ((UAS_TUR == uas_only) && devip->stopped) {
- mk_sense_buffer(SCpnt, NOT_READY, LOGICAL_UNIT_NOT_READY,
- 0x2);
- if (debug)
- sdev_printk(KERN_INFO, SCpnt->device,
- "%s reports: Not ready: %s\n", my_name,
- "initializing command required");
- return check_condition_result;
- }
return 0;
}
@@ -911,7 +900,7 @@ static int fill_from_dev_buffer(struct scsi_cmnd *scp, unsigned char *arr,
if (!sdb->length)
return 0;
if (!(scsi_bidi_cmnd(scp) || scp->sc_data_direction == DMA_FROM_DEVICE))
- return (DID_ERROR << 16);
+ return DID_ERROR << 16;
act_len = sg_copy_from_buffer(sdb->table.sgl, sdb->table.nents,
arr, arr_len);
@@ -935,13 +924,17 @@ static int fetch_to_dev_buffer(struct scsi_cmnd *scp, unsigned char *arr,
static const char * inq_vendor_id = "Linux ";
static const char * inq_product_id = "scsi_debug ";
-static const char *inq_product_rev = "0184"; /* version less '.' */
+static const char *inq_product_rev = "0186"; /* version less '.' */
+/* Use some locally assigned NAAs for SAS addresses. */
+static const u64 naa3_comp_a = 0x3222222000000000ULL;
+static const u64 naa3_comp_b = 0x3333333000000000ULL;
+static const u64 naa3_comp_c = 0x3111111000000000ULL;
/* Device identification VPD page. Returns number of bytes placed in arr */
-static int inquiry_evpd_83(unsigned char * arr, int port_group_id,
- int target_dev_id, int dev_id_num,
- const char * dev_id_str,
- int dev_id_str_len)
+static int inquiry_vpd_83(unsigned char *arr, int port_group_id,
+ int target_dev_id, int dev_id_num,
+ const char *dev_id_str, int dev_id_str_len,
+ const uuid_be *lu_name)
{
int num, port_a;
char b[32];
@@ -958,19 +951,25 @@ static int inquiry_evpd_83(unsigned char * arr, int port_group_id,
arr[3] = num;
num += 4;
if (dev_id_num >= 0) {
- /* NAA-5, Logical unit identifier (binary) */
- arr[num++] = 0x1; /* binary (not necessarily sas) */
- arr[num++] = 0x3; /* PIV=0, lu, naa */
- arr[num++] = 0x0;
- arr[num++] = 0x8;
- arr[num++] = 0x53; /* naa-5 ieee company id=0x333333 (fake) */
- arr[num++] = 0x33;
- arr[num++] = 0x33;
- arr[num++] = 0x30;
- arr[num++] = (dev_id_num >> 24);
- arr[num++] = (dev_id_num >> 16) & 0xff;
- arr[num++] = (dev_id_num >> 8) & 0xff;
- arr[num++] = dev_id_num & 0xff;
+ if (sdebug_uuid_ctl) {
+ /* Locally assigned UUID */
+ arr[num++] = 0x1; /* binary (not necessarily sas) */
+ arr[num++] = 0xa; /* PIV=0, lu, naa */
+ arr[num++] = 0x0;
+ arr[num++] = 0x12;
+ arr[num++] = 0x10; /* uuid type=1, locally assigned */
+ arr[num++] = 0x0;
+ memcpy(arr + num, lu_name, 16);
+ num += 16;
+ } else {
+ /* NAA-3, Logical unit identifier (binary) */
+ arr[num++] = 0x1; /* binary (not necessarily sas) */
+ arr[num++] = 0x3; /* PIV=0, lu, naa */
+ arr[num++] = 0x0;
+ arr[num++] = 0x8;
+ put_unaligned_be64(naa3_comp_b + dev_id_num, arr + num);
+ num += 8;
+ }
/* Target relative port number */
arr[num++] = 0x61; /* proto=sas, binary */
arr[num++] = 0x94; /* PIV=1, target port, rel port */
@@ -981,47 +980,35 @@ static int inquiry_evpd_83(unsigned char * arr, int port_group_id,
arr[num++] = 0x0;
arr[num++] = 0x1; /* relative port A */
}
- /* NAA-5, Target port identifier */
+ /* NAA-3, Target port identifier */
arr[num++] = 0x61; /* proto=sas, binary */
arr[num++] = 0x93; /* piv=1, target port, naa */
arr[num++] = 0x0;
arr[num++] = 0x8;
- arr[num++] = 0x52; /* naa-5, company id=0x222222 (fake) */
- arr[num++] = 0x22;
- arr[num++] = 0x22;
- arr[num++] = 0x20;
- arr[num++] = (port_a >> 24);
- arr[num++] = (port_a >> 16) & 0xff;
- arr[num++] = (port_a >> 8) & 0xff;
- arr[num++] = port_a & 0xff;
- /* NAA-5, Target port group identifier */
+ put_unaligned_be64(naa3_comp_a + port_a, arr + num);
+ num += 8;
+ /* NAA-3, Target port group identifier */
arr[num++] = 0x61; /* proto=sas, binary */
arr[num++] = 0x95; /* piv=1, target port group id */
arr[num++] = 0x0;
arr[num++] = 0x4;
arr[num++] = 0;
arr[num++] = 0;
- arr[num++] = (port_group_id >> 8) & 0xff;
- arr[num++] = port_group_id & 0xff;
- /* NAA-5, Target device identifier */
+ put_unaligned_be16(port_group_id, arr + num);
+ num += 2;
+ /* NAA-3, Target device identifier */
arr[num++] = 0x61; /* proto=sas, binary */
arr[num++] = 0xa3; /* piv=1, target device, naa */
arr[num++] = 0x0;
arr[num++] = 0x8;
- arr[num++] = 0x52; /* naa-5, company id=0x222222 (fake) */
- arr[num++] = 0x22;
- arr[num++] = 0x22;
- arr[num++] = 0x20;
- arr[num++] = (target_dev_id >> 24);
- arr[num++] = (target_dev_id >> 16) & 0xff;
- arr[num++] = (target_dev_id >> 8) & 0xff;
- arr[num++] = target_dev_id & 0xff;
+ put_unaligned_be64(naa3_comp_a + target_dev_id, arr + num);
+ num += 8;
/* SCSI name string: Target device identifier */
arr[num++] = 0x63; /* proto=sas, UTF-8 */
arr[num++] = 0xa8; /* piv=1, target device, SCSI name string */
arr[num++] = 0x0;
arr[num++] = 24;
- memcpy(arr + num, "naa.52222220", 12);
+ memcpy(arr + num, "naa.32222220", 12);
num += 12;
snprintf(b, sizeof(b), "%08X", target_dev_id);
memcpy(arr + num, b, 8);
@@ -1031,7 +1018,6 @@ static int inquiry_evpd_83(unsigned char * arr, int port_group_id,
return num;
}
-
static unsigned char vpd84_data[] = {
/* from 4th byte */ 0x22,0x22,0x22,0x0,0xbb,0x0,
0x22,0x22,0x22,0x0,0xbb,0x1,
@@ -1039,14 +1025,14 @@ static unsigned char vpd84_data[] = {
};
/* Software interface identification VPD page */
-static int inquiry_evpd_84(unsigned char * arr)
+static int inquiry_vpd_84(unsigned char *arr)
{
memcpy(arr, vpd84_data, sizeof(vpd84_data));
return sizeof(vpd84_data);
}
/* Management network addresses VPD page */
-static int inquiry_evpd_85(unsigned char * arr)
+static int inquiry_vpd_85(unsigned char *arr)
{
int num = 0;
const char * na1 = "https://www.kernel.org/config";
@@ -1081,7 +1067,7 @@ static int inquiry_evpd_85(unsigned char * arr)
}
/* SCSI ports VPD page */
-static int inquiry_evpd_88(unsigned char * arr, int target_dev_id)
+static int inquiry_vpd_88(unsigned char *arr, int target_dev_id)
{
int num = 0;
int port_a, port_b;
@@ -1101,15 +1087,8 @@ static int inquiry_evpd_88(unsigned char * arr, int target_dev_id)
arr[num++] = 0x93; /* PIV=1, target port, NAA */
arr[num++] = 0x0; /* reserved */
arr[num++] = 0x8; /* length */
- arr[num++] = 0x52; /* NAA-5, company_id=0x222222 (fake) */
- arr[num++] = 0x22;
- arr[num++] = 0x22;
- arr[num++] = 0x20;
- arr[num++] = (port_a >> 24);
- arr[num++] = (port_a >> 16) & 0xff;
- arr[num++] = (port_a >> 8) & 0xff;
- arr[num++] = port_a & 0xff;
-
+ put_unaligned_be64(naa3_comp_a + port_a, arr + num);
+ num += 8;
arr[num++] = 0x0; /* reserved */
arr[num++] = 0x0; /* reserved */
arr[num++] = 0x0;
@@ -1123,14 +1102,8 @@ static int inquiry_evpd_88(unsigned char * arr, int target_dev_id)
arr[num++] = 0x93; /* PIV=1, target port, NAA */
arr[num++] = 0x0; /* reserved */
arr[num++] = 0x8; /* length */
- arr[num++] = 0x52; /* NAA-5, company_id=0x222222 (fake) */
- arr[num++] = 0x22;
- arr[num++] = 0x22;
- arr[num++] = 0x20;
- arr[num++] = (port_b >> 24);
- arr[num++] = (port_b >> 16) & 0xff;
- arr[num++] = (port_b >> 8) & 0xff;
- arr[num++] = port_b & 0xff;
+ put_unaligned_be64(naa3_comp_a + port_b, arr + num);
+ num += 8;
return num;
}
@@ -1181,7 +1154,7 @@ static unsigned char vpd89_data[] = {
};
/* ATA Information VPD page */
-static int inquiry_evpd_89(unsigned char * arr)
+static int inquiry_vpd_89(unsigned char *arr)
{
memcpy(arr, vpd89_data, sizeof(vpd89_data));
return sizeof(vpd89_data);
@@ -1196,47 +1169,42 @@ static unsigned char vpdb0_data[] = {
};
/* Block limits VPD page (SBC-3) */
-static int inquiry_evpd_b0(unsigned char * arr)
+static int inquiry_vpd_b0(unsigned char *arr)
{
unsigned int gran;
memcpy(arr, vpdb0_data, sizeof(vpdb0_data));
/* Optimal transfer length granularity */
- gran = 1 << scsi_debug_physblk_exp;
- arr[2] = (gran >> 8) & 0xff;
- arr[3] = gran & 0xff;
+ gran = 1 << sdebug_physblk_exp;
+ put_unaligned_be16(gran, arr + 2);
/* Maximum Transfer Length */
- if (sdebug_store_sectors > 0x400) {
- arr[4] = (sdebug_store_sectors >> 24) & 0xff;
- arr[5] = (sdebug_store_sectors >> 16) & 0xff;
- arr[6] = (sdebug_store_sectors >> 8) & 0xff;
- arr[7] = sdebug_store_sectors & 0xff;
- }
+ if (sdebug_store_sectors > 0x400)
+ put_unaligned_be32(sdebug_store_sectors, arr + 4);
/* Optimal Transfer Length */
- put_unaligned_be32(scsi_debug_opt_blks, &arr[8]);
+ put_unaligned_be32(sdebug_opt_blks, &arr[8]);
- if (scsi_debug_lbpu) {
+ if (sdebug_lbpu) {
/* Maximum Unmap LBA Count */
- put_unaligned_be32(scsi_debug_unmap_max_blocks, &arr[16]);
+ put_unaligned_be32(sdebug_unmap_max_blocks, &arr[16]);
/* Maximum Unmap Block Descriptor Count */
- put_unaligned_be32(scsi_debug_unmap_max_desc, &arr[20]);
+ put_unaligned_be32(sdebug_unmap_max_desc, &arr[20]);
}
/* Unmap Granularity Alignment */
- if (scsi_debug_unmap_alignment) {
- put_unaligned_be32(scsi_debug_unmap_alignment, &arr[28]);
+ if (sdebug_unmap_alignment) {
+ put_unaligned_be32(sdebug_unmap_alignment, &arr[28]);
arr[28] |= 0x80; /* UGAVALID */
}
/* Optimal Unmap Granularity */
- put_unaligned_be32(scsi_debug_unmap_granularity, &arr[24]);
+ put_unaligned_be32(sdebug_unmap_granularity, &arr[24]);
/* Maximum WRITE SAME Length */
- put_unaligned_be64(scsi_debug_write_same_length, &arr[32]);
+ put_unaligned_be64(sdebug_write_same_length, &arr[32]);
return 0x3c; /* Mandatory page length for Logical Block Provisioning */
@@ -1244,7 +1212,7 @@ static int inquiry_evpd_b0(unsigned char * arr)
}
/* Block device characteristics VPD page (SBC-3) */
-static int inquiry_evpd_b1(unsigned char *arr)
+static int inquiry_vpd_b1(unsigned char *arr)
{
memset(arr, 0, 0x3c);
arr[0] = 0;
@@ -1255,24 +1223,22 @@ static int inquiry_evpd_b1(unsigned char *arr)
return 0x3c;
}
-/* Logical block provisioning VPD page (SBC-3) */
-static int inquiry_evpd_b2(unsigned char *arr)
+/* Logical block provisioning VPD page (SBC-4) */
+static int inquiry_vpd_b2(unsigned char *arr)
{
memset(arr, 0, 0x4);
arr[0] = 0; /* threshold exponent */
-
- if (scsi_debug_lbpu)
+ if (sdebug_lbpu)
arr[1] = 1 << 7;
-
- if (scsi_debug_lbpws)
+ if (sdebug_lbpws)
arr[1] |= 1 << 6;
-
- if (scsi_debug_lbpws10)
+ if (sdebug_lbpws10)
arr[1] |= 1 << 5;
-
- if (scsi_debug_lbprz)
- arr[1] |= 1 << 2;
-
+ if (sdebug_lbprz && scsi_debug_lbp())
+ arr[1] |= (sdebug_lbprz & 0x7) << 2; /* sbc4r07 and later */
+ /* anc_sup=0; dp=0 (no provisioning group descriptor) */
+ /* minimum_percentage=0; provisioning_type=0 (unknown) */
+ /* threshold_percentage=0 */
return 0x4;
}
@@ -1285,19 +1251,20 @@ static int resp_inquiry(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
unsigned char * arr;
unsigned char *cmd = scp->cmnd;
int alloc_len, n, ret;
- bool have_wlun;
+ bool have_wlun, is_disk;
- alloc_len = (cmd[3] << 8) + cmd[4];
+ alloc_len = get_unaligned_be16(cmd + 3);
arr = kzalloc(SDEBUG_MAX_INQ_ARR_SZ, GFP_ATOMIC);
if (! arr)
return DID_REQUEUE << 16;
- have_wlun = (scp->device->lun == SCSI_W_LUN_REPORT_LUNS);
+ is_disk = (sdebug_ptype == TYPE_DISK);
+ have_wlun = scsi_is_wlun(scp->device->lun);
if (have_wlun)
- pq_pdt = 0x1e; /* present, wlun */
- else if (scsi_debug_no_lun_0 && (0 == devip->lun))
- pq_pdt = 0x7f; /* not present, no device type */
+ pq_pdt = TYPE_WLUN; /* present, wlun */
+ else if (sdebug_no_lun_0 && (devip->lun == SDEBUG_LUN_0_VAL))
+ pq_pdt = 0x7f; /* not present, PQ=3, PDT=0x1f */
else
- pq_pdt = (scsi_debug_ptype & 0x1f);
+ pq_pdt = (sdebug_ptype & 0x1f);
arr[0] = pq_pdt;
if (0x2 & cmd[1]) { /* CMDDT bit set */
mk_sense_invalid_fld(scp, SDEB_IN_CDB, 1, 1);
@@ -1310,7 +1277,7 @@ static int resp_inquiry(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
port_group_id = (((host_no + 1) & 0x7f) << 8) +
(devip->channel & 0x7f);
- if (0 == scsi_debug_vpd_use_hostno)
+ if (sdebug_vpd_use_hostno == 0)
host_no = 0;
lu_id_num = have_wlun ? -1 : (((host_no + 1) * 2000) +
(devip->target * 1000) + devip->lun);
@@ -1328,11 +1295,12 @@ static int resp_inquiry(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
arr[n++] = 0x86; /* extended inquiry */
arr[n++] = 0x87; /* mode page policy */
arr[n++] = 0x88; /* SCSI ports */
- arr[n++] = 0x89; /* ATA information */
- arr[n++] = 0xb0; /* Block limits (SBC) */
- arr[n++] = 0xb1; /* Block characteristics (SBC) */
- if (scsi_debug_lbp()) /* Logical Block Prov. (SBC) */
- arr[n++] = 0xb2;
+ if (is_disk) { /* SBC only */
+ arr[n++] = 0x89; /* ATA information */
+ arr[n++] = 0xb0; /* Block limits */
+ arr[n++] = 0xb1; /* Block characteristics */
+ arr[n++] = 0xb2; /* Logical Block Prov */
+ }
arr[3] = n - 4; /* number of supported VPD pages */
} else if (0x80 == cmd[2]) { /* unit serial number */
arr[1] = cmd[2]; /*sanity */
@@ -1340,21 +1308,22 @@ static int resp_inquiry(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
memcpy(&arr[4], lu_id_str, len);
} else if (0x83 == cmd[2]) { /* device identification */
arr[1] = cmd[2]; /*sanity */
- arr[3] = inquiry_evpd_83(&arr[4], port_group_id,
- target_dev_id, lu_id_num,
- lu_id_str, len);
+ arr[3] = inquiry_vpd_83(&arr[4], port_group_id,
+ target_dev_id, lu_id_num,
+ lu_id_str, len,
+ &devip->lu_name);
} else if (0x84 == cmd[2]) { /* Software interface ident. */
arr[1] = cmd[2]; /*sanity */
- arr[3] = inquiry_evpd_84(&arr[4]);
+ arr[3] = inquiry_vpd_84(&arr[4]);
} else if (0x85 == cmd[2]) { /* Management network addresses */
arr[1] = cmd[2]; /*sanity */
- arr[3] = inquiry_evpd_85(&arr[4]);
+ arr[3] = inquiry_vpd_85(&arr[4]);
} else if (0x86 == cmd[2]) { /* extended inquiry */
arr[1] = cmd[2]; /*sanity */
arr[3] = 0x3c; /* number of following entries */
- if (scsi_debug_dif == SD_DIF_TYPE3_PROTECTION)
+ if (sdebug_dif == SD_DIF_TYPE3_PROTECTION)
arr[4] = 0x4; /* SPT: GRD_CHK:1 */
- else if (scsi_debug_dif)
+ else if (have_dif_prot)
arr[4] = 0x5; /* SPT: GRD_CHK:1, REF_CHK:1 */
else
arr[4] = 0x0; /* no protection stuff */
@@ -1368,39 +1337,38 @@ static int resp_inquiry(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
arr[10] = 0x82; /* mlus, per initiator port */
} else if (0x88 == cmd[2]) { /* SCSI Ports */
arr[1] = cmd[2]; /*sanity */
- arr[3] = inquiry_evpd_88(&arr[4], target_dev_id);
- } else if (0x89 == cmd[2]) { /* ATA information */
+ arr[3] = inquiry_vpd_88(&arr[4], target_dev_id);
+ } else if (is_disk && 0x89 == cmd[2]) { /* ATA information */
arr[1] = cmd[2]; /*sanity */
- n = inquiry_evpd_89(&arr[4]);
- arr[2] = (n >> 8);
- arr[3] = (n & 0xff);
- } else if (0xb0 == cmd[2]) { /* Block limits (SBC) */
+ n = inquiry_vpd_89(&arr[4]);
+ put_unaligned_be16(n, arr + 2);
+ } else if (is_disk && 0xb0 == cmd[2]) { /* Block limits */
arr[1] = cmd[2]; /*sanity */
- arr[3] = inquiry_evpd_b0(&arr[4]);
- } else if (0xb1 == cmd[2]) { /* Block characteristics (SBC) */
+ arr[3] = inquiry_vpd_b0(&arr[4]);
+ } else if (is_disk && 0xb1 == cmd[2]) { /* Block char. */
arr[1] = cmd[2]; /*sanity */
- arr[3] = inquiry_evpd_b1(&arr[4]);
- } else if (0xb2 == cmd[2]) { /* Logical Block Prov. (SBC) */
+ arr[3] = inquiry_vpd_b1(&arr[4]);
+ } else if (is_disk && 0xb2 == cmd[2]) { /* LB Prov. */
arr[1] = cmd[2]; /*sanity */
- arr[3] = inquiry_evpd_b2(&arr[4]);
+ arr[3] = inquiry_vpd_b2(&arr[4]);
} else {
mk_sense_invalid_fld(scp, SDEB_IN_CDB, 2, -1);
kfree(arr);
return check_condition_result;
}
- len = min(((arr[2] << 8) + arr[3]) + 4, alloc_len);
+ len = min(get_unaligned_be16(arr + 2) + 4, alloc_len);
ret = fill_from_dev_buffer(scp, arr,
min(len, SDEBUG_MAX_INQ_ARR_SZ));
kfree(arr);
return ret;
}
/* drops through here for a standard inquiry */
- arr[1] = scsi_debug_removable ? 0x80 : 0; /* Removable disk */
- arr[2] = scsi_debug_scsi_level;
+ arr[1] = sdebug_removable ? 0x80 : 0; /* Removable disk */
+ arr[2] = sdebug_scsi_level;
arr[3] = 2; /* response_data_format==2 */
arr[4] = SDEBUG_LONG_INQ_SZ - 5;
- arr[5] = scsi_debug_dif ? 1 : 0; /* PROTECT bit */
- if (0 == scsi_debug_vpd_use_hostno)
+ arr[5] = (int)have_dif_prot; /* PROTECT bit */
+ if (sdebug_vpd_use_hostno == 0)
arr[5] = 0x10; /* claim: implicit TGPS */
arr[6] = 0x10; /* claim: MultiP */
/* arr[6] |= 0x40; ... claim: EncServ (enclosure services) */
@@ -1409,21 +1377,26 @@ static int resp_inquiry(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
memcpy(&arr[16], inq_product_id, 16);
memcpy(&arr[32], inq_product_rev, 4);
/* version descriptors (2 bytes each) follow */
- arr[58] = 0x0; arr[59] = 0xa2; /* SAM-5 rev 4 */
- arr[60] = 0x4; arr[61] = 0x68; /* SPC-4 rev 37 */
+ put_unaligned_be16(0xc0, arr + 58); /* SAM-6 no version claimed */
+ put_unaligned_be16(0x5c0, arr + 60); /* SPC-5 no version claimed */
n = 62;
- if (scsi_debug_ptype == 0) {
- arr[n++] = 0x4; arr[n++] = 0xc5; /* SBC-4 rev 36 */
- } else if (scsi_debug_ptype == 1) {
- arr[n++] = 0x5; arr[n++] = 0x25; /* SSC-4 rev 3 */
- }
- arr[n++] = 0x20; arr[n++] = 0xe6; /* SPL-3 rev 7 */
+ if (is_disk) { /* SBC-4 no version claimed */
+ put_unaligned_be16(0x600, arr + n);
+ n += 2;
+ } else if (sdebug_ptype == TYPE_TAPE) { /* SSC-4 rev 3 */
+ put_unaligned_be16(0x525, arr + n);
+ n += 2;
+ }
+ put_unaligned_be16(0x2100, arr + n); /* SPL-4 no version claimed */
ret = fill_from_dev_buffer(scp, arr,
min(alloc_len, SDEBUG_LONG_INQ_SZ));
kfree(arr);
return ret;
}
+static unsigned char iec_m_pg[] = {0x1c, 0xa, 0x08, 0, 0, 0, 0, 0,
+ 0, 0, 0x0, 0x0};
+
static int resp_requests(struct scsi_cmnd * scp,
struct sdebug_dev_info * devip)
{
@@ -1452,7 +1425,7 @@ static int resp_requests(struct scsi_cmnd * scp,
}
} else {
memcpy(arr, sbuff, SCSI_SENSE_BUFFERSIZE);
- if (arr[0] >= 0x70 && dsense == scsi_debug_dsense)
+ if (arr[0] >= 0x70 && dsense == sdebug_dsense)
; /* have sense and formats match */
else if (arr[0] <= 0x70) {
if (dsense) {
@@ -1489,24 +1462,25 @@ static int resp_start_stop(struct scsi_cmnd * scp,
struct sdebug_dev_info * devip)
{
unsigned char *cmd = scp->cmnd;
- int power_cond, start;
+ int power_cond, stop;
power_cond = (cmd[4] & 0xf0) >> 4;
if (power_cond) {
mk_sense_invalid_fld(scp, SDEB_IN_CDB, 4, 7);
return check_condition_result;
}
- start = cmd[4] & 1;
- if (start == devip->stopped)
- devip->stopped = !start;
+ stop = !(cmd[4] & 1);
+ atomic_xchg(&devip->stopped, stop);
return 0;
}
static sector_t get_sdebug_capacity(void)
{
- if (scsi_debug_virtual_gb > 0)
- return (sector_t)scsi_debug_virtual_gb *
- (1073741824 / scsi_debug_sector_size);
+ static const unsigned int gibibyte = 1073741824;
+
+ if (sdebug_virtual_gb > 0)
+ return (sector_t)sdebug_virtual_gb *
+ (gibibyte / sdebug_sector_size);
else
return sdebug_store_sectors;
}
@@ -1523,18 +1497,10 @@ static int resp_readcap(struct scsi_cmnd * scp,
memset(arr, 0, SDEBUG_READCAP_ARR_SZ);
if (sdebug_capacity < 0xffffffff) {
capac = (unsigned int)sdebug_capacity - 1;
- arr[0] = (capac >> 24);
- arr[1] = (capac >> 16) & 0xff;
- arr[2] = (capac >> 8) & 0xff;
- arr[3] = capac & 0xff;
- } else {
- arr[0] = 0xff;
- arr[1] = 0xff;
- arr[2] = 0xff;
- arr[3] = 0xff;
- }
- arr[6] = (scsi_debug_sector_size >> 8) & 0xff;
- arr[7] = scsi_debug_sector_size & 0xff;
+ put_unaligned_be32(capac, arr + 0);
+ } else
+ put_unaligned_be32(0xffffffff, arr + 0);
+ put_unaligned_be16(sdebug_sector_size, arr + 6);
return fill_from_dev_buffer(scp, arr, SDEBUG_READCAP_ARR_SZ);
}
@@ -1544,34 +1510,31 @@ static int resp_readcap16(struct scsi_cmnd * scp,
{
unsigned char *cmd = scp->cmnd;
unsigned char arr[SDEBUG_READCAP16_ARR_SZ];
- unsigned long long capac;
- int k, alloc_len;
+ int alloc_len;
- alloc_len = ((cmd[10] << 24) + (cmd[11] << 16) + (cmd[12] << 8)
- + cmd[13]);
+ alloc_len = get_unaligned_be32(cmd + 10);
/* following just in case virtual_gb changed */
sdebug_capacity = get_sdebug_capacity();
memset(arr, 0, SDEBUG_READCAP16_ARR_SZ);
- capac = sdebug_capacity - 1;
- for (k = 0; k < 8; ++k, capac >>= 8)
- arr[7 - k] = capac & 0xff;
- arr[8] = (scsi_debug_sector_size >> 24) & 0xff;
- arr[9] = (scsi_debug_sector_size >> 16) & 0xff;
- arr[10] = (scsi_debug_sector_size >> 8) & 0xff;
- arr[11] = scsi_debug_sector_size & 0xff;
- arr[13] = scsi_debug_physblk_exp & 0xf;
- arr[14] = (scsi_debug_lowest_aligned >> 8) & 0x3f;
+ put_unaligned_be64((u64)(sdebug_capacity - 1), arr + 0);
+ put_unaligned_be32(sdebug_sector_size, arr + 8);
+ arr[13] = sdebug_physblk_exp & 0xf;
+ arr[14] = (sdebug_lowest_aligned >> 8) & 0x3f;
if (scsi_debug_lbp()) {
arr[14] |= 0x80; /* LBPME */
- if (scsi_debug_lbprz)
- arr[14] |= 0x40; /* LBPRZ */
+ /* from sbc4r07, this LBPRZ field is 1 bit, but the LBPRZ in
+ * the LB Provisioning VPD page is 3 bits. Note that lbprz=2
+ * in the wider field maps to 0 in this field.
+ */
+ if (sdebug_lbprz & 1) /* precisely what the draft requires */
+ arr[14] |= 0x40;
}
- arr[15] = scsi_debug_lowest_aligned & 0xff;
+ arr[15] = sdebug_lowest_aligned & 0xff;
- if (scsi_debug_dif) {
- arr[12] = (scsi_debug_dif - 1) << 1; /* P_TYPE */
+ if (have_dif_prot) {
+ arr[12] = (sdebug_dif - 1) << 1; /* P_TYPE */
arr[12] |= 1; /* PROT_EN */
}
@@ -1590,9 +1553,7 @@ static int resp_report_tgtpgs(struct scsi_cmnd * scp,
int n, ret, alen, rlen;
int port_group_a, port_group_b, port_a, port_b;
- alen = ((cmd[6] << 24) + (cmd[7] << 16) + (cmd[8] << 8)
- + cmd[9]);
-
+ alen = get_unaligned_be32(cmd + 6);
arr = kzalloc(SDEBUG_MAX_TGTPGS_ARR_SZ, GFP_ATOMIC);
if (! arr)
return DID_REQUEUE << 16;
@@ -1605,49 +1566,46 @@ static int resp_report_tgtpgs(struct scsi_cmnd * scp,
port_a = 0x1; /* relative port A */
port_b = 0x2; /* relative port B */
port_group_a = (((host_no + 1) & 0x7f) << 8) +
- (devip->channel & 0x7f);
+ (devip->channel & 0x7f);
port_group_b = (((host_no + 1) & 0x7f) << 8) +
- (devip->channel & 0x7f) + 0x80;
+ (devip->channel & 0x7f) + 0x80;
/*
* The asymmetric access state is cycled according to the host_id.
*/
n = 4;
- if (0 == scsi_debug_vpd_use_hostno) {
- arr[n++] = host_no % 3; /* Asymm access state */
- arr[n++] = 0x0F; /* claim: all states are supported */
+ if (sdebug_vpd_use_hostno == 0) {
+ arr[n++] = host_no % 3; /* Asymm access state */
+ arr[n++] = 0x0F; /* claim: all states are supported */
} else {
- arr[n++] = 0x0; /* Active/Optimized path */
- arr[n++] = 0x01; /* claim: only support active/optimized paths */
+ arr[n++] = 0x0; /* Active/Optimized path */
+ arr[n++] = 0x01; /* only support active/optimized paths */
}
- arr[n++] = (port_group_a >> 8) & 0xff;
- arr[n++] = port_group_a & 0xff;
+ put_unaligned_be16(port_group_a, arr + n);
+ n += 2;
arr[n++] = 0; /* Reserved */
arr[n++] = 0; /* Status code */
arr[n++] = 0; /* Vendor unique */
arr[n++] = 0x1; /* One port per group */
arr[n++] = 0; /* Reserved */
arr[n++] = 0; /* Reserved */
- arr[n++] = (port_a >> 8) & 0xff;
- arr[n++] = port_a & 0xff;
+ put_unaligned_be16(port_a, arr + n);
+ n += 2;
arr[n++] = 3; /* Port unavailable */
arr[n++] = 0x08; /* claim: only unavailalbe paths are supported */
- arr[n++] = (port_group_b >> 8) & 0xff;
- arr[n++] = port_group_b & 0xff;
+ put_unaligned_be16(port_group_b, arr + n);
+ n += 2;
arr[n++] = 0; /* Reserved */
arr[n++] = 0; /* Status code */
arr[n++] = 0; /* Vendor unique */
arr[n++] = 0x1; /* One port per group */
arr[n++] = 0; /* Reserved */
arr[n++] = 0; /* Reserved */
- arr[n++] = (port_b >> 8) & 0xff;
- arr[n++] = port_b & 0xff;
+ put_unaligned_be16(port_b, arr + n);
+ n += 2;
rlen = n - 4;
- arr[0] = (rlen >> 24) & 0xff;
- arr[1] = (rlen >> 16) & 0xff;
- arr[2] = (rlen >> 8) & 0xff;
- arr[3] = rlen & 0xff;
+ put_unaligned_be32(rlen, arr + 0);
/*
* Return the smallest value of either
@@ -1662,8 +1620,8 @@ static int resp_report_tgtpgs(struct scsi_cmnd * scp,
return ret;
}
-static int
-resp_rsup_opcodes(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
+static int resp_rsup_opcodes(struct scsi_cmnd *scp,
+ struct sdebug_dev_info *devip)
{
bool rctd;
u8 reporting_opts, req_opcode, sdeb_i, supp;
@@ -1813,8 +1771,8 @@ resp_rsup_opcodes(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
return errsts;
}
-static int
-resp_rsup_tmfs(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
+static int resp_rsup_tmfs(struct scsi_cmnd *scp,
+ struct sdebug_dev_info *devip)
{
bool repd;
u32 alloc_len, len;
@@ -1871,17 +1829,19 @@ static int resp_format_pg(unsigned char * p, int pcontrol, int target)
0, 0, 0, 0, 0x40, 0, 0, 0};
memcpy(p, format_pg, sizeof(format_pg));
- p[10] = (sdebug_sectors_per >> 8) & 0xff;
- p[11] = sdebug_sectors_per & 0xff;
- p[12] = (scsi_debug_sector_size >> 8) & 0xff;
- p[13] = scsi_debug_sector_size & 0xff;
- if (scsi_debug_removable)
+ put_unaligned_be16(sdebug_sectors_per, p + 10);
+ put_unaligned_be16(sdebug_sector_size, p + 12);
+ if (sdebug_removable)
p[20] |= 0x20; /* should agree with INQUIRY */
if (1 == pcontrol)
memset(p + 2, 0, sizeof(format_pg) - 2);
return sizeof(format_pg);
}
+static unsigned char caching_pg[] = {0x8, 18, 0x14, 0, 0xff, 0xff, 0, 0,
+ 0xff, 0xff, 0xff, 0xff, 0x80, 0x14, 0, 0,
+ 0, 0, 0, 0};
+
static int resp_caching_pg(unsigned char * p, int pcontrol, int target)
{ /* Caching page for mode_sense */
unsigned char ch_caching_pg[] = {/* 0x8, 18, */ 0x4, 0, 0, 0, 0, 0,
@@ -1889,7 +1849,7 @@ static int resp_caching_pg(unsigned char * p, int pcontrol, int target)
unsigned char d_caching_pg[] = {0x8, 18, 0x14, 0, 0xff, 0xff, 0, 0,
0xff, 0xff, 0xff, 0xff, 0x80, 0x14, 0, 0, 0, 0, 0, 0};
- if (SCSI_DEBUG_OPT_N_WCE & scsi_debug_opts)
+ if (SDEBUG_OPT_N_WCE & sdebug_opts)
caching_pg[2] &= ~0x4; /* set WCE=0 (default WCE=1) */
memcpy(p, caching_pg, sizeof(caching_pg));
if (1 == pcontrol)
@@ -1899,6 +1859,9 @@ static int resp_caching_pg(unsigned char * p, int pcontrol, int target)
return sizeof(caching_pg);
}
+static unsigned char ctrl_m_pg[] = {0xa, 10, 2, 0, 0, 0, 0, 0,
+ 0, 0, 0x2, 0x4b};
+
static int resp_ctrl_m_pg(unsigned char * p, int pcontrol, int target)
{ /* Control mode page for mode_sense */
unsigned char ch_ctrl_m_pg[] = {/* 0xa, 10, */ 0x6, 0, 0, 0, 0, 0,
@@ -1906,12 +1869,12 @@ static int resp_ctrl_m_pg(unsigned char * p, int pcontrol, int target)
unsigned char d_ctrl_m_pg[] = {0xa, 10, 2, 0, 0, 0, 0, 0,
0, 0, 0x2, 0x4b};
- if (scsi_debug_dsense)
+ if (sdebug_dsense)
ctrl_m_pg[2] |= 0x4;
else
ctrl_m_pg[2] &= ~0x4;
- if (scsi_debug_ato)
+ if (sdebug_ato)
ctrl_m_pg[5] |= 0x80; /* ATO=1 */
memcpy(p, ctrl_m_pg, sizeof(ctrl_m_pg));
@@ -1955,31 +1918,29 @@ static int resp_sas_pcd_m_spg(unsigned char * p, int pcontrol, int target,
{ /* SAS phy control and discover mode page for mode_sense */
unsigned char sas_pcd_m_pg[] = {0x59, 0x1, 0, 0x64, 0, 0x6, 0, 2,
0, 0, 0, 0, 0x10, 0x9, 0x8, 0x0,
- 0x52, 0x22, 0x22, 0x20, 0x0, 0x0, 0x0, 0x0,
- 0x51, 0x11, 0x11, 0x10, 0x0, 0x0, 0x0, 0x1,
+ 0, 0, 0, 0, 0, 0, 0, 0, /* insert SAS addr */
+ 0, 0, 0, 0, 0, 0, 0, 0, /* insert SAS addr */
0x2, 0, 0, 0, 0, 0, 0, 0,
0x88, 0x99, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 1, 0, 0, 0x10, 0x9, 0x8, 0x0,
- 0x52, 0x22, 0x22, 0x20, 0x0, 0x0, 0x0, 0x0,
- 0x51, 0x11, 0x11, 0x10, 0x0, 0x0, 0x0, 0x1,
+ 0, 0, 0, 0, 0, 0, 0, 0, /* insert SAS addr */
+ 0, 0, 0, 0, 0, 0, 0, 0, /* insert SAS addr */
0x3, 0, 0, 0, 0, 0, 0, 0,
0x88, 0x99, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
};
int port_a, port_b;
+ put_unaligned_be64(naa3_comp_a, sas_pcd_m_pg + 16);
+ put_unaligned_be64(naa3_comp_c + 1, sas_pcd_m_pg + 24);
+ put_unaligned_be64(naa3_comp_a, sas_pcd_m_pg + 64);
+ put_unaligned_be64(naa3_comp_c + 1, sas_pcd_m_pg + 72);
port_a = target_dev_id + 1;
port_b = port_a + 1;
memcpy(p, sas_pcd_m_pg, sizeof(sas_pcd_m_pg));
- p[20] = (port_a >> 24);
- p[21] = (port_a >> 16) & 0xff;
- p[22] = (port_a >> 8) & 0xff;
- p[23] = port_a & 0xff;
- p[48 + 20] = (port_b >> 24);
- p[48 + 21] = (port_b >> 16) & 0xff;
- p[48 + 22] = (port_b >> 8) & 0xff;
- p[48 + 23] = port_b & 0xff;
+ put_unaligned_be32(port_a, p + 20);
+ put_unaligned_be32(port_b, p + 48 + 20);
if (1 == pcontrol)
memset(p + 4, 0, sizeof(sas_pcd_m_pg) - 4);
return sizeof(sas_pcd_m_pg);
@@ -1999,29 +1960,30 @@ static int resp_sas_sha_m_spg(unsigned char * p, int pcontrol)
#define SDEBUG_MAX_MSENSE_SZ 256
-static int
-resp_mode_sense(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
+static int resp_mode_sense(struct scsi_cmnd *scp,
+ struct sdebug_dev_info *devip)
{
- unsigned char dbd, llbaa;
int pcontrol, pcode, subpcode, bd_len;
unsigned char dev_spec;
- int k, alloc_len, msense_6, offset, len, target_dev_id;
+ int alloc_len, offset, len, target_dev_id;
int target = scp->device->id;
unsigned char * ap;
unsigned char arr[SDEBUG_MAX_MSENSE_SZ];
unsigned char *cmd = scp->cmnd;
+ bool dbd, llbaa, msense_6, is_disk, bad_pcode;
- dbd = !!(cmd[1] & 0x8);
+ dbd = !!(cmd[1] & 0x8); /* disable block descriptors */
pcontrol = (cmd[2] & 0xc0) >> 6;
pcode = cmd[2] & 0x3f;
subpcode = cmd[3];
msense_6 = (MODE_SENSE == cmd[0]);
- llbaa = msense_6 ? 0 : !!(cmd[1] & 0x10);
- if ((0 == scsi_debug_ptype) && (0 == dbd))
+ llbaa = msense_6 ? false : !!(cmd[1] & 0x10);
+ is_disk = (sdebug_ptype == TYPE_DISK);
+ if (is_disk && !dbd)
bd_len = llbaa ? 16 : 8;
else
bd_len = 0;
- alloc_len = msense_6 ? cmd[4] : ((cmd[7] << 8) | cmd[8]);
+ alloc_len = msense_6 ? cmd[4] : get_unaligned_be16(cmd + 7);
memset(arr, 0, SDEBUG_MAX_MSENSE_SZ);
if (0x3 == pcontrol) { /* Saving values not supported */
mk_sense_buffer(scp, ILLEGAL_REQUEST, SAVING_PARAMS_UNSUP, 0);
@@ -2029,9 +1991,9 @@ resp_mode_sense(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
}
target_dev_id = ((devip->sdbg_host->shost->host_no + 1) * 2000) +
(devip->target * 1000) - 3;
- /* set DPOFUA bit for disks */
- if (0 == scsi_debug_ptype)
- dev_spec = (DEV_READONLY(target) ? 0x80 : 0x0) | 0x10;
+ /* for disks set DPOFUA bit and clear write protect (WP) bit */
+ if (is_disk)
+ dev_spec = 0x10; /* =0x90 if WP=1 implies read-only */
else
dev_spec = 0x0;
if (msense_6) {
@@ -2050,30 +2012,16 @@ resp_mode_sense(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
sdebug_capacity = get_sdebug_capacity();
if (8 == bd_len) {
- if (sdebug_capacity > 0xfffffffe) {
- ap[0] = 0xff;
- ap[1] = 0xff;
- ap[2] = 0xff;
- ap[3] = 0xff;
- } else {
- ap[0] = (sdebug_capacity >> 24) & 0xff;
- ap[1] = (sdebug_capacity >> 16) & 0xff;
- ap[2] = (sdebug_capacity >> 8) & 0xff;
- ap[3] = sdebug_capacity & 0xff;
- }
- ap[6] = (scsi_debug_sector_size >> 8) & 0xff;
- ap[7] = scsi_debug_sector_size & 0xff;
+ if (sdebug_capacity > 0xfffffffe)
+ put_unaligned_be32(0xffffffff, ap + 0);
+ else
+ put_unaligned_be32(sdebug_capacity, ap + 0);
+ put_unaligned_be16(sdebug_sector_size, ap + 6);
offset += bd_len;
ap = arr + offset;
} else if (16 == bd_len) {
- unsigned long long capac = sdebug_capacity;
-
- for (k = 0; k < 8; ++k, capac >>= 8)
- ap[7 - k] = capac & 0xff;
- ap[12] = (scsi_debug_sector_size >> 24) & 0xff;
- ap[13] = (scsi_debug_sector_size >> 16) & 0xff;
- ap[14] = (scsi_debug_sector_size >> 8) & 0xff;
- ap[15] = scsi_debug_sector_size & 0xff;
+ put_unaligned_be64((u64)sdebug_capacity, ap + 0);
+ put_unaligned_be32(sdebug_sector_size, ap + 12);
offset += bd_len;
ap = arr + offset;
}
@@ -2083,6 +2031,8 @@ resp_mode_sense(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
mk_sense_invalid_fld(scp, SDEB_IN_CDB, 3, -1);
return check_condition_result;
}
+ bad_pcode = false;
+
switch (pcode) {
case 0x1: /* Read-Write error recovery page, direct access */
len = resp_err_recov_pg(ap, pcontrol, target);
@@ -2093,12 +2043,18 @@ resp_mode_sense(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
offset += len;
break;
case 0x3: /* Format device page, direct access */
- len = resp_format_pg(ap, pcontrol, target);
- offset += len;
+ if (is_disk) {
+ len = resp_format_pg(ap, pcontrol, target);
+ offset += len;
+ } else
+ bad_pcode = true;
break;
case 0x8: /* Caching page, direct access */
- len = resp_caching_pg(ap, pcontrol, target);
- offset += len;
+ if (is_disk) {
+ len = resp_caching_pg(ap, pcontrol, target);
+ offset += len;
+ } else
+ bad_pcode = true;
break;
case 0xa: /* Control Mode page, all devices */
len = resp_ctrl_m_pg(ap, pcontrol, target);
@@ -2127,8 +2083,12 @@ resp_mode_sense(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
if ((0 == subpcode) || (0xff == subpcode)) {
len = resp_err_recov_pg(ap, pcontrol, target);
len += resp_disconnect_pg(ap + len, pcontrol, target);
- len += resp_format_pg(ap + len, pcontrol, target);
- len += resp_caching_pg(ap + len, pcontrol, target);
+ if (is_disk) {
+ len += resp_format_pg(ap + len, pcontrol,
+ target);
+ len += resp_caching_pg(ap + len, pcontrol,
+ target);
+ }
len += resp_ctrl_m_pg(ap + len, pcontrol, target);
len += resp_sas_sf_m_pg(ap + len, pcontrol, target);
if (0xff == subpcode) {
@@ -2137,29 +2097,31 @@ resp_mode_sense(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
len += resp_sas_sha_m_spg(ap + len, pcontrol);
}
len += resp_iec_m_pg(ap + len, pcontrol, target);
+ offset += len;
} else {
mk_sense_invalid_fld(scp, SDEB_IN_CDB, 3, -1);
return check_condition_result;
}
- offset += len;
break;
default:
+ bad_pcode = true;
+ break;
+ }
+ if (bad_pcode) {
mk_sense_invalid_fld(scp, SDEB_IN_CDB, 2, 5);
return check_condition_result;
}
if (msense_6)
arr[0] = offset - 1;
- else {
- arr[0] = ((offset - 2) >> 8) & 0xff;
- arr[1] = (offset - 2) & 0xff;
- }
+ else
+ put_unaligned_be16((offset - 2), arr + 0);
return fill_from_dev_buffer(scp, arr, min(alloc_len, offset));
}
#define SDEBUG_MAX_MSELECT_SZ 512
-static int
-resp_mode_select(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
+static int resp_mode_select(struct scsi_cmnd *scp,
+ struct sdebug_dev_info *devip)
{
int pf, sp, ps, md_len, bd_len, off, spf, pg_len;
int param_len, res, mpage;
@@ -2170,21 +2132,20 @@ resp_mode_select(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
memset(arr, 0, sizeof(arr));
pf = cmd[1] & 0x10;
sp = cmd[1] & 0x1;
- param_len = mselect6 ? cmd[4] : ((cmd[7] << 8) + cmd[8]);
+ param_len = mselect6 ? cmd[4] : get_unaligned_be16(cmd + 7);
if ((0 == pf) || sp || (param_len > SDEBUG_MAX_MSELECT_SZ)) {
mk_sense_invalid_fld(scp, SDEB_IN_CDB, mselect6 ? 4 : 7, -1);
return check_condition_result;
}
res = fetch_to_dev_buffer(scp, arr, param_len);
if (-1 == res)
- return (DID_ERROR << 16);
- else if ((res < param_len) &&
- (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts))
+ return DID_ERROR << 16;
+ else if (sdebug_verbose && (res < param_len))
sdev_printk(KERN_INFO, scp->device,
"%s: cdb indicated=%d, IO sent=%d bytes\n",
__func__, param_len, res);
- md_len = mselect6 ? (arr[0] + 1) : ((arr[0] << 8) + arr[1] + 2);
- bd_len = mselect6 ? arr[3] : ((arr[6] << 8) + arr[7]);
+ md_len = mselect6 ? (arr[0] + 1) : (get_unaligned_be16(arr + 0) + 2);
+ bd_len = mselect6 ? arr[3] : get_unaligned_be16(arr + 6);
if (md_len > 2) {
mk_sense_invalid_fld(scp, SDEB_IN_DATA, 0, -1);
return check_condition_result;
@@ -2197,7 +2158,7 @@ resp_mode_select(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
return check_condition_result;
}
spf = !!(arr[off] & 0x40);
- pg_len = spf ? ((arr[off + 2] << 8) + arr[off + 3] + 4) :
+ pg_len = spf ? (get_unaligned_be16(arr + off + 2) + 4) :
(arr[off + 1] + 2);
if ((pg_len + off) > param_len) {
mk_sense_buffer(scp, ILLEGAL_REQUEST,
@@ -2216,7 +2177,7 @@ resp_mode_select(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
if (ctrl_m_pg[1] == arr[off + 1]) {
memcpy(ctrl_m_pg + 2, arr + off + 2,
sizeof(ctrl_m_pg) - 2);
- scsi_debug_dsense = !!(ctrl_m_pg[2] & 0x4);
+ sdebug_dsense = !!(ctrl_m_pg[2] & 0x4);
goto set_mode_changed_ua;
}
break;
@@ -2279,7 +2240,7 @@ static int resp_log_sense(struct scsi_cmnd * scp,
pcontrol = (cmd[2] & 0xc0) >> 6;
pcode = cmd[2] & 0x3f;
subpcode = cmd[3] & 0xff;
- alloc_len = (cmd[7] << 8) + cmd[8];
+ alloc_len = get_unaligned_be16(cmd + 7);
arr[0] = pcode;
if (0 == subpcode) {
switch (pcode) {
@@ -2336,7 +2297,7 @@ static int resp_log_sense(struct scsi_cmnd * scp,
mk_sense_invalid_fld(scp, SDEB_IN_CDB, 3, -1);
return check_condition_result;
}
- len = min(((arr[2] << 8) + arr[3]) + 4, alloc_len);
+ len = min(get_unaligned_be16(arr + 2) + 4, alloc_len);
return fill_from_dev_buffer(scp, arr,
min(len, SDEBUG_MAX_INQ_ARR_SZ));
}
@@ -2358,8 +2319,8 @@ static int check_device_access_params(struct scsi_cmnd *scp,
}
/* Returns number of bytes copied or -1 if error. */
-static int
-do_device_access(struct scsi_cmnd *scmd, u64 lba, u32 num, bool do_write)
+static int do_device_access(struct scsi_cmnd *scmd, u64 lba, u32 num,
+ bool do_write)
{
int ret;
u64 block, rest = 0;
@@ -2384,15 +2345,15 @@ do_device_access(struct scsi_cmnd *scmd, u64 lba, u32 num, bool do_write)
rest = block + num - sdebug_store_sectors;
ret = sg_copy_buffer(sdb->table.sgl, sdb->table.nents,
- fake_storep + (block * scsi_debug_sector_size),
- (num - rest) * scsi_debug_sector_size, 0, do_write);
- if (ret != (num - rest) * scsi_debug_sector_size)
+ fake_storep + (block * sdebug_sector_size),
+ (num - rest) * sdebug_sector_size, 0, do_write);
+ if (ret != (num - rest) * sdebug_sector_size)
return ret;
if (rest) {
ret += sg_copy_buffer(sdb->table.sgl, sdb->table.nents,
- fake_storep, rest * scsi_debug_sector_size,
- (num - rest) * scsi_debug_sector_size, do_write);
+ fake_storep, rest * sdebug_sector_size,
+ (num - rest) * sdebug_sector_size, do_write);
}
return ret;
@@ -2401,13 +2362,12 @@ do_device_access(struct scsi_cmnd *scmd, u64 lba, u32 num, bool do_write)
/* If fake_store(lba,num) compares equal to arr(num), then copy top half of
* arr into fake_store(lba,num) and return true. If comparison fails then
* return false. */
-static bool
-comp_write_worker(u64 lba, u32 num, const u8 *arr)
+static bool comp_write_worker(u64 lba, u32 num, const u8 *arr)
{
bool res;
u64 block, rest = 0;
u32 store_blks = sdebug_store_sectors;
- u32 lb_size = scsi_debug_sector_size;
+ u32 lb_size = sdebug_sector_size;
block = do_div(lba, store_blks);
if (block + num > store_blks)
@@ -2434,7 +2394,7 @@ static __be16 dif_compute_csum(const void *buf, int len)
{
__be16 csum;
- if (scsi_debug_guard)
+ if (sdebug_guard)
csum = (__force __be16)ip_compute_csum(buf, len);
else
csum = cpu_to_be16(crc_t10dif(buf, len));
@@ -2445,7 +2405,7 @@ static __be16 dif_compute_csum(const void *buf, int len)
static int dif_verify(struct sd_dif_tuple *sdt, const void *data,
sector_t sector, u32 ei_lba)
{
- __be16 csum = dif_compute_csum(data, scsi_debug_sector_size);
+ __be16 csum = dif_compute_csum(data, sdebug_sector_size);
if (sdt->guard_tag != csum) {
pr_err("GUARD check failed on sector %lu rcvd 0x%04x, data 0x%04x\n",
@@ -2454,13 +2414,13 @@ static int dif_verify(struct sd_dif_tuple *sdt, const void *data,
be16_to_cpu(csum));
return 0x01;
}
- if (scsi_debug_dif == SD_DIF_TYPE1_PROTECTION &&
+ if (sdebug_dif == SD_DIF_TYPE1_PROTECTION &&
be32_to_cpu(sdt->ref_tag) != (sector & 0xffffffff)) {
pr_err("REF check failed on sector %lu\n",
(unsigned long)sector);
return 0x03;
}
- if (scsi_debug_dif == SD_DIF_TYPE2_PROTECTION &&
+ if (sdebug_dif == SD_DIF_TYPE2_PROTECTION &&
be32_to_cpu(sdt->ref_tag) != ei_lba) {
pr_err("REF check failed on sector %lu\n",
(unsigned long)sector);
@@ -2541,10 +2501,10 @@ static int prot_verify_read(struct scsi_cmnd *SCpnt, sector_t start_sec,
return 0;
}
-static int
-resp_read_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
+static int resp_read_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
{
u8 *cmd = scp->cmnd;
+ struct sdebug_queued_cmd *sqcp;
u64 lba;
u32 num;
u32 ei_lba;
@@ -2591,40 +2551,43 @@ resp_read_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
check_prot = false;
break;
}
- if (check_prot) {
- if (scsi_debug_dif == SD_DIF_TYPE2_PROTECTION &&
+ if (unlikely(have_dif_prot && check_prot)) {
+ if (sdebug_dif == SD_DIF_TYPE2_PROTECTION &&
(cmd[1] & 0xe0)) {
mk_sense_invalid_opcode(scp);
return check_condition_result;
}
- if ((scsi_debug_dif == SD_DIF_TYPE1_PROTECTION ||
- scsi_debug_dif == SD_DIF_TYPE3_PROTECTION) &&
+ if ((sdebug_dif == SD_DIF_TYPE1_PROTECTION ||
+ sdebug_dif == SD_DIF_TYPE3_PROTECTION) &&
(cmd[1] & 0xe0) == 0)
sdev_printk(KERN_ERR, scp->device, "Unprotected RD "
"to DIF device\n");
}
- if (sdebug_any_injecting_opt) {
- struct sdebug_scmd_extra_t *ep = scsi_cmd_priv(scp);
+ if (unlikely(sdebug_any_injecting_opt)) {
+ sqcp = (struct sdebug_queued_cmd *)scp->host_scribble;
- if (ep->inj_short)
- num /= 2;
- }
+ if (sqcp) {
+ if (sqcp->inj_short)
+ num /= 2;
+ }
+ } else
+ sqcp = NULL;
/* inline check_device_access_params() */
- if (lba + num > sdebug_capacity) {
+ if (unlikely(lba + num > sdebug_capacity)) {
mk_sense_buffer(scp, ILLEGAL_REQUEST, LBA_OUT_OF_RANGE, 0);
return check_condition_result;
}
/* transfer length excessive (tie in to block limits VPD page) */
- if (num > sdebug_store_sectors) {
+ if (unlikely(num > sdebug_store_sectors)) {
/* needs work to find which cdb byte 'num' comes from */
mk_sense_buffer(scp, ILLEGAL_REQUEST, INVALID_FIELD_IN_CDB, 0);
return check_condition_result;
}
- if ((SCSI_DEBUG_OPT_MEDIUM_ERR & scsi_debug_opts) &&
- (lba <= (OPT_MEDIUM_ERR_ADDR + OPT_MEDIUM_ERR_NUM - 1)) &&
- ((lba + num) > OPT_MEDIUM_ERR_ADDR)) {
+ if (unlikely((SDEBUG_OPT_MEDIUM_ERR & sdebug_opts) &&
+ (lba <= (OPT_MEDIUM_ERR_ADDR + OPT_MEDIUM_ERR_NUM - 1)) &&
+ ((lba + num) > OPT_MEDIUM_ERR_ADDR))) {
/* claim unrecoverable read error */
mk_sense_buffer(scp, MEDIUM_ERROR, UNRECOVERED_READ_ERR, 0);
/* set info field and valid bit for fixed descriptor */
@@ -2641,7 +2604,7 @@ resp_read_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
read_lock_irqsave(&atomic_rw, iflags);
/* DIX + T10 DIF */
- if (scsi_debug_dix && scsi_prot_sg_count(scp)) {
+ if (unlikely(sdebug_dix && scsi_prot_sg_count(scp))) {
int prot_ret = prot_verify_read(scp, lba, num, ei_lba);
if (prot_ret) {
@@ -2653,27 +2616,25 @@ resp_read_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
ret = do_device_access(scp, lba, num, false);
read_unlock_irqrestore(&atomic_rw, iflags);
- if (ret == -1)
+ if (unlikely(ret == -1))
return DID_ERROR << 16;
scsi_in(scp)->resid = scsi_bufflen(scp) - ret;
- if (sdebug_any_injecting_opt) {
- struct sdebug_scmd_extra_t *ep = scsi_cmd_priv(scp);
-
- if (ep->inj_recovered) {
+ if (unlikely(sqcp)) {
+ if (sqcp->inj_recovered) {
mk_sense_buffer(scp, RECOVERED_ERROR,
THRESHOLD_EXCEEDED, 0);
return check_condition_result;
- } else if (ep->inj_transport) {
+ } else if (sqcp->inj_transport) {
mk_sense_buffer(scp, ABORTED_COMMAND,
TRANSPORT_PROBLEM, ACK_NAK_TO);
return check_condition_result;
- } else if (ep->inj_dif) {
+ } else if (sqcp->inj_dif) {
/* Logical block guard check failed */
mk_sense_buffer(scp, ABORTED_COMMAND, 0x10, 1);
return illegal_condition_result;
- } else if (ep->inj_dix) {
+ } else if (sqcp->inj_dix) {
mk_sense_buffer(scp, ILLEGAL_REQUEST, 0x10, 1);
return illegal_condition_result;
}
@@ -2750,13 +2711,13 @@ static int prot_verify_write(struct scsi_cmnd *SCpnt, sector_t start_sec,
ret = dif_verify(sdt, daddr, sector, ei_lba);
if (ret) {
- dump_sector(daddr, scsi_debug_sector_size);
+ dump_sector(daddr, sdebug_sector_size);
goto out;
}
sector++;
ei_lba++;
- dpage_offset += scsi_debug_sector_size;
+ dpage_offset += sdebug_sector_size;
}
diter.consumed = dpage_offset;
sg_miter_stop(&diter);
@@ -2777,24 +2738,18 @@ out:
static unsigned long lba_to_map_index(sector_t lba)
{
- if (scsi_debug_unmap_alignment) {
- lba += scsi_debug_unmap_granularity -
- scsi_debug_unmap_alignment;
- }
- sector_div(lba, scsi_debug_unmap_granularity);
-
+ if (sdebug_unmap_alignment)
+ lba += sdebug_unmap_granularity - sdebug_unmap_alignment;
+ sector_div(lba, sdebug_unmap_granularity);
return lba;
}
static sector_t map_index_to_lba(unsigned long index)
{
- sector_t lba = index * scsi_debug_unmap_granularity;
-
- if (scsi_debug_unmap_alignment) {
- lba -= scsi_debug_unmap_granularity -
- scsi_debug_unmap_alignment;
- }
+ sector_t lba = index * sdebug_unmap_granularity;
+ if (sdebug_unmap_alignment)
+ lba -= sdebug_unmap_granularity - sdebug_unmap_alignment;
return lba;
}
@@ -2815,7 +2770,6 @@ static unsigned int map_state(sector_t lba, unsigned int *num)
end = min_t(sector_t, sdebug_store_sectors, map_index_to_lba(next));
*num = end - lba;
-
return mapped;
}
@@ -2841,27 +2795,27 @@ static void unmap_region(sector_t lba, unsigned int len)
unsigned long index = lba_to_map_index(lba);
if (lba == map_index_to_lba(index) &&
- lba + scsi_debug_unmap_granularity <= end &&
+ lba + sdebug_unmap_granularity <= end &&
index < map_size) {
clear_bit(index, map_storep);
- if (scsi_debug_lbprz) {
+ if (sdebug_lbprz) { /* for LBPRZ=2 return 0xff_s */
memset(fake_storep +
- lba * scsi_debug_sector_size, 0,
- scsi_debug_sector_size *
- scsi_debug_unmap_granularity);
+ lba * sdebug_sector_size,
+ (sdebug_lbprz & 1) ? 0 : 0xff,
+ sdebug_sector_size *
+ sdebug_unmap_granularity);
}
if (dif_storep) {
memset(dif_storep + lba, 0xff,
sizeof(*dif_storep) *
- scsi_debug_unmap_granularity);
+ sdebug_unmap_granularity);
}
}
lba = map_index_to_lba(index + 1);
}
}
-static int
-resp_write_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
+static int resp_write_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
{
u8 *cmd = scp->cmnd;
u64 lba;
@@ -2910,26 +2864,26 @@ resp_write_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
check_prot = false;
break;
}
- if (check_prot) {
- if (scsi_debug_dif == SD_DIF_TYPE2_PROTECTION &&
+ if (unlikely(have_dif_prot && check_prot)) {
+ if (sdebug_dif == SD_DIF_TYPE2_PROTECTION &&
(cmd[1] & 0xe0)) {
mk_sense_invalid_opcode(scp);
return check_condition_result;
}
- if ((scsi_debug_dif == SD_DIF_TYPE1_PROTECTION ||
- scsi_debug_dif == SD_DIF_TYPE3_PROTECTION) &&
+ if ((sdebug_dif == SD_DIF_TYPE1_PROTECTION ||
+ sdebug_dif == SD_DIF_TYPE3_PROTECTION) &&
(cmd[1] & 0xe0) == 0)
sdev_printk(KERN_ERR, scp->device, "Unprotected WR "
"to DIF device\n");
}
/* inline check_device_access_params() */
- if (lba + num > sdebug_capacity) {
+ if (unlikely(lba + num > sdebug_capacity)) {
mk_sense_buffer(scp, ILLEGAL_REQUEST, LBA_OUT_OF_RANGE, 0);
return check_condition_result;
}
/* transfer length excessive (tie in to block limits VPD page) */
- if (num > sdebug_store_sectors) {
+ if (unlikely(num > sdebug_store_sectors)) {
/* needs work to find which cdb byte 'num' comes from */
mk_sense_buffer(scp, ILLEGAL_REQUEST, INVALID_FIELD_IN_CDB, 0);
return check_condition_result;
@@ -2938,7 +2892,7 @@ resp_write_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
write_lock_irqsave(&atomic_rw, iflags);
/* DIX + T10 DIF */
- if (scsi_debug_dix && scsi_prot_sg_count(scp)) {
+ if (unlikely(sdebug_dix && scsi_prot_sg_count(scp))) {
int prot_ret = prot_verify_write(scp, lba, num, ei_lba);
if (prot_ret) {
@@ -2949,43 +2903,46 @@ resp_write_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
}
ret = do_device_access(scp, lba, num, true);
- if (scsi_debug_lbp())
+ if (unlikely(scsi_debug_lbp()))
map_region(lba, num);
write_unlock_irqrestore(&atomic_rw, iflags);
- if (-1 == ret)
- return (DID_ERROR << 16);
- else if ((ret < (num * scsi_debug_sector_size)) &&
- (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts))
+ if (unlikely(-1 == ret))
+ return DID_ERROR << 16;
+ else if (unlikely(sdebug_verbose &&
+ (ret < (num * sdebug_sector_size))))
sdev_printk(KERN_INFO, scp->device,
"%s: write: cdb indicated=%u, IO sent=%d bytes\n",
- my_name, num * scsi_debug_sector_size, ret);
+ my_name, num * sdebug_sector_size, ret);
- if (sdebug_any_injecting_opt) {
- struct sdebug_scmd_extra_t *ep = scsi_cmd_priv(scp);
+ if (unlikely(sdebug_any_injecting_opt)) {
+ struct sdebug_queued_cmd *sqcp =
+ (struct sdebug_queued_cmd *)scp->host_scribble;
- if (ep->inj_recovered) {
- mk_sense_buffer(scp, RECOVERED_ERROR,
- THRESHOLD_EXCEEDED, 0);
- return check_condition_result;
- } else if (ep->inj_dif) {
- /* Logical block guard check failed */
- mk_sense_buffer(scp, ABORTED_COMMAND, 0x10, 1);
- return illegal_condition_result;
- } else if (ep->inj_dix) {
- mk_sense_buffer(scp, ILLEGAL_REQUEST, 0x10, 1);
- return illegal_condition_result;
+ if (sqcp) {
+ if (sqcp->inj_recovered) {
+ mk_sense_buffer(scp, RECOVERED_ERROR,
+ THRESHOLD_EXCEEDED, 0);
+ return check_condition_result;
+ } else if (sqcp->inj_dif) {
+ /* Logical block guard check failed */
+ mk_sense_buffer(scp, ABORTED_COMMAND, 0x10, 1);
+ return illegal_condition_result;
+ } else if (sqcp->inj_dix) {
+ mk_sense_buffer(scp, ILLEGAL_REQUEST, 0x10, 1);
+ return illegal_condition_result;
+ }
}
}
return 0;
}
-static int
-resp_write_same(struct scsi_cmnd *scp, u64 lba, u32 num, u32 ei_lba,
- bool unmap, bool ndob)
+static int resp_write_same(struct scsi_cmnd *scp, u64 lba, u32 num,
+ u32 ei_lba, bool unmap, bool ndob)
{
unsigned long iflags;
unsigned long long i;
int ret;
+ u64 lba_off;
ret = check_device_access_params(scp, lba, num);
if (ret)
@@ -2998,31 +2955,29 @@ resp_write_same(struct scsi_cmnd *scp, u64 lba, u32 num, u32 ei_lba,
goto out;
}
+ lba_off = lba * sdebug_sector_size;
/* if ndob then zero 1 logical block, else fetch 1 logical block */
if (ndob) {
- memset(fake_storep + (lba * scsi_debug_sector_size), 0,
- scsi_debug_sector_size);
+ memset(fake_storep + lba_off, 0, sdebug_sector_size);
ret = 0;
} else
- ret = fetch_to_dev_buffer(scp, fake_storep +
- (lba * scsi_debug_sector_size),
- scsi_debug_sector_size);
+ ret = fetch_to_dev_buffer(scp, fake_storep + lba_off,
+ sdebug_sector_size);
if (-1 == ret) {
write_unlock_irqrestore(&atomic_rw, iflags);
- return (DID_ERROR << 16);
- } else if ((ret < (num * scsi_debug_sector_size)) &&
- (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts))
+ return DID_ERROR << 16;
+ } else if (sdebug_verbose && (ret < (num * sdebug_sector_size)))
sdev_printk(KERN_INFO, scp->device,
"%s: %s: cdb indicated=%u, IO sent=%d bytes\n",
my_name, "write same",
- num * scsi_debug_sector_size, ret);
+ num * sdebug_sector_size, ret);
/* Copy first sector to remaining blocks */
for (i = 1 ; i < num ; i++)
- memcpy(fake_storep + ((lba + i) * scsi_debug_sector_size),
- fake_storep + (lba * scsi_debug_sector_size),
- scsi_debug_sector_size);
+ memcpy(fake_storep + ((lba + i) * sdebug_sector_size),
+ fake_storep + lba_off,
+ sdebug_sector_size);
if (scsi_debug_lbp())
map_region(lba, num);
@@ -3032,8 +2987,8 @@ out:
return 0;
}
-static int
-resp_write_same_10(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
+static int resp_write_same_10(struct scsi_cmnd *scp,
+ struct sdebug_dev_info *devip)
{
u8 *cmd = scp->cmnd;
u32 lba;
@@ -3042,7 +2997,7 @@ resp_write_same_10(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
bool unmap = false;
if (cmd[1] & 0x8) {
- if (scsi_debug_lbpws10 == 0) {
+ if (sdebug_lbpws10 == 0) {
mk_sense_invalid_fld(scp, SDEB_IN_CDB, 1, 3);
return check_condition_result;
} else
@@ -3050,15 +3005,15 @@ resp_write_same_10(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
}
lba = get_unaligned_be32(cmd + 2);
num = get_unaligned_be16(cmd + 7);
- if (num > scsi_debug_write_same_length) {
+ if (num > sdebug_write_same_length) {
mk_sense_invalid_fld(scp, SDEB_IN_CDB, 7, -1);
return check_condition_result;
}
return resp_write_same(scp, lba, num, ei_lba, unmap, false);
}
-static int
-resp_write_same_16(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
+static int resp_write_same_16(struct scsi_cmnd *scp,
+ struct sdebug_dev_info *devip)
{
u8 *cmd = scp->cmnd;
u64 lba;
@@ -3068,7 +3023,7 @@ resp_write_same_16(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
bool ndob = false;
if (cmd[1] & 0x8) { /* UNMAP */
- if (scsi_debug_lbpws == 0) {
+ if (sdebug_lbpws == 0) {
mk_sense_invalid_fld(scp, SDEB_IN_CDB, 1, 3);
return check_condition_result;
} else
@@ -3078,7 +3033,7 @@ resp_write_same_16(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
ndob = true;
lba = get_unaligned_be64(cmd + 2);
num = get_unaligned_be32(cmd + 10);
- if (num > scsi_debug_write_same_length) {
+ if (num > sdebug_write_same_length) {
mk_sense_invalid_fld(scp, SDEB_IN_CDB, 10, -1);
return check_condition_result;
}
@@ -3088,8 +3043,8 @@ resp_write_same_16(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
/* Note the mode field is in the same position as the (lower) service action
* field. For the Report supported operation codes command, SPC-4 suggests
* each mode of this command should be reported separately; for future. */
-static int
-resp_write_buffer(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
+static int resp_write_buffer(struct scsi_cmnd *scp,
+ struct sdebug_dev_info *devip)
{
u8 *cmd = scp->cmnd;
struct scsi_device *sdp = scp->device;
@@ -3134,15 +3089,15 @@ resp_write_buffer(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
return 0;
}
-static int
-resp_comp_write(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
+static int resp_comp_write(struct scsi_cmnd *scp,
+ struct sdebug_dev_info *devip)
{
u8 *cmd = scp->cmnd;
u8 *arr;
u8 *fake_storep_hold;
u64 lba;
u32 dnum;
- u32 lb_size = scsi_debug_sector_size;
+ u32 lb_size = sdebug_sector_size;
u8 num;
unsigned long iflags;
int ret;
@@ -3152,13 +3107,13 @@ resp_comp_write(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
num = cmd[13]; /* 1 to a maximum of 255 logical blocks */
if (0 == num)
return 0; /* degenerate case, not an error */
- if (scsi_debug_dif == SD_DIF_TYPE2_PROTECTION &&
+ if (sdebug_dif == SD_DIF_TYPE2_PROTECTION &&
(cmd[1] & 0xe0)) {
mk_sense_invalid_opcode(scp);
return check_condition_result;
}
- if ((scsi_debug_dif == SD_DIF_TYPE1_PROTECTION ||
- scsi_debug_dif == SD_DIF_TYPE3_PROTECTION) &&
+ if ((sdebug_dif == SD_DIF_TYPE1_PROTECTION ||
+ sdebug_dif == SD_DIF_TYPE3_PROTECTION) &&
(cmd[1] & 0xe0) == 0)
sdev_printk(KERN_ERR, scp->device, "Unprotected WR "
"to DIF device\n");
@@ -3193,8 +3148,7 @@ resp_comp_write(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
if (ret == -1) {
retval = DID_ERROR << 16;
goto cleanup;
- } else if ((ret < (dnum * lb_size)) &&
- (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts))
+ } else if (sdebug_verbose && (ret < (dnum * lb_size)))
sdev_printk(KERN_INFO, scp->device, "%s: compare_write: cdb "
"indicated=%u, IO sent=%d bytes\n", my_name,
dnum * lb_size, ret);
@@ -3217,8 +3171,7 @@ struct unmap_block_desc {
__be32 __reserved;
};
-static int
-resp_unmap(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
+static int resp_unmap(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
{
unsigned char *buf;
struct unmap_block_desc *desc;
@@ -3233,12 +3186,12 @@ resp_unmap(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
BUG_ON(scsi_bufflen(scp) != payload_len);
descriptors = (payload_len - 8) / 16;
- if (descriptors > scsi_debug_unmap_max_desc) {
+ if (descriptors > sdebug_unmap_max_desc) {
mk_sense_invalid_fld(scp, SDEB_IN_CDB, 7, -1);
return check_condition_result;
}
- buf = kmalloc(scsi_bufflen(scp), GFP_ATOMIC);
+ buf = kzalloc(scsi_bufflen(scp), GFP_ATOMIC);
if (!buf) {
mk_sense_buffer(scp, ILLEGAL_REQUEST, INSUFF_RES_ASC,
INSUFF_RES_ASCQ);
@@ -3276,8 +3229,8 @@ out:
#define SDEBUG_GET_LBA_STATUS_LEN 32
-static int
-resp_get_lba_status(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
+static int resp_get_lba_status(struct scsi_cmnd *scp,
+ struct sdebug_dev_info *devip)
{
u8 *cmd = scp->cmnd;
u64 lba;
@@ -3316,63 +3269,94 @@ resp_get_lba_status(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
return fill_from_dev_buffer(scp, arr, SDEBUG_GET_LBA_STATUS_LEN);
}
-#define SDEBUG_RLUN_ARR_SZ 256
-
-static int resp_report_luns(struct scsi_cmnd * scp,
- struct sdebug_dev_info * devip)
+/* Even though each pseudo target has a REPORT LUNS "well known logical unit"
+ * (W-LUN), the normal Linux scanning logic does not associate it with a
+ * device (e.g. /dev/sg7). The following magic will make that association:
+ * "cd /sys/class/scsi_host/host<n> ; echo '- - 49409' > scan"
+ * where <n> is a host number. If there are multiple targets in a host then
+ * the above will associate a W-LUN to each target. To only get a W-LUN
+ * for target 2, then use "echo '- 2 49409' > scan" .
+ */
+static int resp_report_luns(struct scsi_cmnd *scp,
+ struct sdebug_dev_info *devip)
{
+ unsigned char *cmd = scp->cmnd;
unsigned int alloc_len;
- int lun_cnt, i, upper, num, n, want_wlun, shortish;
+ unsigned char select_report;
u64 lun;
- unsigned char *cmd = scp->cmnd;
- int select_report = (int)cmd[2];
- struct scsi_lun *one_lun;
- unsigned char arr[SDEBUG_RLUN_ARR_SZ];
- unsigned char * max_addr;
+ struct scsi_lun *lun_p;
+ u8 *arr;
+ unsigned int lun_cnt; /* normal LUN count (max: 256) */
+ unsigned int wlun_cnt; /* report luns W-LUN count */
+ unsigned int tlun_cnt; /* total LUN count */
+ unsigned int rlen; /* response length (in bytes) */
+ int i, res;
clear_luns_changed_on_target(devip);
- alloc_len = cmd[9] + (cmd[8] << 8) + (cmd[7] << 16) + (cmd[6] << 24);
- shortish = (alloc_len < 4);
- if (shortish || (select_report > 2)) {
- mk_sense_invalid_fld(scp, SDEB_IN_CDB, shortish ? 6 : 2, -1);
+
+ select_report = cmd[2];
+ alloc_len = get_unaligned_be32(cmd + 6);
+
+ if (alloc_len < 4) {
+ pr_err("alloc len too small %d\n", alloc_len);
+ mk_sense_invalid_fld(scp, SDEB_IN_CDB, 6, -1);
return check_condition_result;
}
- /* can produce response with up to 16k luns (lun 0 to lun 16383) */
- memset(arr, 0, SDEBUG_RLUN_ARR_SZ);
- lun_cnt = scsi_debug_max_luns;
- if (1 == select_report)
+
+ switch (select_report) {
+ case 0: /* all LUNs apart from W-LUNs */
+ lun_cnt = sdebug_max_luns;
+ wlun_cnt = 0;
+ break;
+ case 1: /* only W-LUNs */
lun_cnt = 0;
- else if (scsi_debug_no_lun_0 && (lun_cnt > 0))
+ wlun_cnt = 1;
+ break;
+ case 2: /* all LUNs */
+ lun_cnt = sdebug_max_luns;
+ wlun_cnt = 1;
+ break;
+ case 0x10: /* only administrative LUs */
+ case 0x11: /* see SPC-5 */
+ case 0x12: /* only subsiduary LUs owned by referenced LU */
+ default:
+ pr_debug("select report invalid %d\n", select_report);
+ mk_sense_invalid_fld(scp, SDEB_IN_CDB, 2, -1);
+ return check_condition_result;
+ }
+
+ if (sdebug_no_lun_0 && (lun_cnt > 0))
--lun_cnt;
- want_wlun = (select_report > 0) ? 1 : 0;
- num = lun_cnt + want_wlun;
- arr[2] = ((sizeof(struct scsi_lun) * num) >> 8) & 0xff;
- arr[3] = (sizeof(struct scsi_lun) * num) & 0xff;
- n = min((int)((SDEBUG_RLUN_ARR_SZ - 8) /
- sizeof(struct scsi_lun)), num);
- if (n < num) {
- want_wlun = 0;
- lun_cnt = n;
- }
- one_lun = (struct scsi_lun *) &arr[8];
- max_addr = arr + SDEBUG_RLUN_ARR_SZ;
- for (i = 0, lun = (scsi_debug_no_lun_0 ? 1 : 0);
- ((i < lun_cnt) && ((unsigned char *)(one_lun + i) < max_addr));
- i++, lun++) {
- upper = (lun >> 8) & 0x3f;
- if (upper)
- one_lun[i].scsi_lun[0] =
- (upper | (SAM2_LUN_ADDRESS_METHOD << 6));
- one_lun[i].scsi_lun[1] = lun & 0xff;
- }
- if (want_wlun) {
- one_lun[i].scsi_lun[0] = (SCSI_W_LUN_REPORT_LUNS >> 8) & 0xff;
- one_lun[i].scsi_lun[1] = SCSI_W_LUN_REPORT_LUNS & 0xff;
- i++;
- }
- alloc_len = (unsigned char *)(one_lun + i) - arr;
- return fill_from_dev_buffer(scp, arr,
- min((int)alloc_len, SDEBUG_RLUN_ARR_SZ));
+
+ tlun_cnt = lun_cnt + wlun_cnt;
+
+ rlen = (tlun_cnt * sizeof(struct scsi_lun)) + 8;
+ arr = vmalloc(rlen);
+ if (!arr) {
+ mk_sense_buffer(scp, ILLEGAL_REQUEST, INSUFF_RES_ASC,
+ INSUFF_RES_ASCQ);
+ return check_condition_result;
+ }
+ memset(arr, 0, rlen);
+ pr_debug("select_report %d luns = %d wluns = %d no_lun0 %d\n",
+ select_report, lun_cnt, wlun_cnt, sdebug_no_lun_0);
+
+ /* luns start at byte 8 in response following the header */
+ lun_p = (struct scsi_lun *)&arr[8];
+
+ /* LUNs use single level peripheral device addressing method */
+ lun = sdebug_no_lun_0 ? 1 : 0;
+ for (i = 0; i < lun_cnt; i++)
+ int_to_scsilun(lun++, lun_p++);
+
+ if (wlun_cnt)
+ int_to_scsilun(SCSI_W_LUN_REPORT_LUNS, lun_p++);
+
+ put_unaligned_be32(rlen - 8, &arr[0]);
+
+ res = fill_from_dev_buffer(scp, arr, rlen);
+ vfree(arr);
+ return res;
}
static int resp_xdwriteread(struct scsi_cmnd *scp, unsigned long long lba,
@@ -3385,7 +3369,7 @@ static int resp_xdwriteread(struct scsi_cmnd *scp, unsigned long long lba,
struct sg_mapping_iter miter;
/* better not to use temporary buffer. */
- buf = kmalloc(scsi_bufflen(scp), GFP_ATOMIC);
+ buf = kzalloc(scsi_bufflen(scp), GFP_ATOMIC);
if (!buf) {
mk_sense_buffer(scp, ILLEGAL_REQUEST, INSUFF_RES_ASC,
INSUFF_RES_ASCQ);
@@ -3411,8 +3395,8 @@ static int resp_xdwriteread(struct scsi_cmnd *scp, unsigned long long lba,
return 0;
}
-static int
-resp_xdwriteread_10(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
+static int resp_xdwriteread_10(struct scsi_cmnd *scp,
+ struct sdebug_dev_info *devip)
{
u8 *cmd = scp->cmnd;
u64 lba;
@@ -3437,41 +3421,66 @@ resp_xdwriteread_10(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
return resp_xdwriteread(scp, lba, num, devip);
}
-/* When timer or tasklet goes off this function is called. */
-static void sdebug_q_cmd_complete(unsigned long indx)
+static struct sdebug_queue *get_queue(struct scsi_cmnd *cmnd)
{
- int qa_indx;
+ struct sdebug_queue *sqp = sdebug_q_arr;
+
+ if (sdebug_mq_active) {
+ u32 tag = blk_mq_unique_tag(cmnd->request);
+ u16 hwq = blk_mq_unique_tag_to_hwq(tag);
+
+ if (unlikely(hwq >= submit_queues)) {
+ pr_warn("Unexpected hwq=%d, apply modulo\n", hwq);
+ hwq %= submit_queues;
+ }
+ pr_debug("tag=%u, hwq=%d\n", tag, hwq);
+ return sqp + hwq;
+ } else
+ return sqp;
+}
+
+/* Queued (deferred) command completions converge here. */
+static void sdebug_q_cmd_complete(struct sdebug_defer *sd_dp)
+{
+ int qc_idx;
int retiring = 0;
unsigned long iflags;
+ struct sdebug_queue *sqp;
struct sdebug_queued_cmd *sqcp;
struct scsi_cmnd *scp;
struct sdebug_dev_info *devip;
- atomic_inc(&sdebug_completions);
- qa_indx = indx;
- if ((qa_indx < 0) || (qa_indx >= SCSI_DEBUG_CANQUEUE)) {
- pr_err("wild qa_indx=%d\n", qa_indx);
+ qc_idx = sd_dp->qc_idx;
+ sqp = sdebug_q_arr + sd_dp->sqa_idx;
+ if (sdebug_statistics) {
+ atomic_inc(&sdebug_completions);
+ if (raw_smp_processor_id() != sd_dp->issuing_cpu)
+ atomic_inc(&sdebug_miss_cpus);
+ }
+ if (unlikely((qc_idx < 0) || (qc_idx >= SDEBUG_CANQUEUE))) {
+ pr_err("wild qc_idx=%d\n", qc_idx);
return;
}
- spin_lock_irqsave(&queued_arr_lock, iflags);
- sqcp = &queued_arr[qa_indx];
+ spin_lock_irqsave(&sqp->qc_lock, iflags);
+ sqcp = &sqp->qc_arr[qc_idx];
scp = sqcp->a_cmnd;
- if (NULL == scp) {
- spin_unlock_irqrestore(&queued_arr_lock, iflags);
- pr_err("scp is NULL\n");
+ if (unlikely(scp == NULL)) {
+ spin_unlock_irqrestore(&sqp->qc_lock, iflags);
+ pr_err("scp is NULL, sqa_idx=%d, qc_idx=%d\n",
+ sd_dp->sqa_idx, qc_idx);
return;
}
devip = (struct sdebug_dev_info *)scp->device->hostdata;
- if (devip)
+ if (likely(devip))
atomic_dec(&devip->num_in_q);
else
pr_err("devip=NULL\n");
- if (atomic_read(&retired_max_queue) > 0)
+ if (unlikely(atomic_read(&retired_max_queue) > 0))
retiring = 1;
sqcp->a_cmnd = NULL;
- if (!test_and_clear_bit(qa_indx, queued_in_use_bm)) {
- spin_unlock_irqrestore(&queued_arr_lock, iflags);
+ if (unlikely(!test_and_clear_bit(qc_idx, sqp->in_use_bm))) {
+ spin_unlock_irqrestore(&sqp->qc_lock, iflags);
pr_err("Unexpected completion\n");
return;
}
@@ -3480,105 +3489,71 @@ static void sdebug_q_cmd_complete(unsigned long indx)
int k, retval;
retval = atomic_read(&retired_max_queue);
- if (qa_indx >= retval) {
- spin_unlock_irqrestore(&queued_arr_lock, iflags);
+ if (qc_idx >= retval) {
+ spin_unlock_irqrestore(&sqp->qc_lock, iflags);
pr_err("index %d too large\n", retval);
return;
}
- k = find_last_bit(queued_in_use_bm, retval);
- if ((k < scsi_debug_max_queue) || (k == retval))
+ k = find_last_bit(sqp->in_use_bm, retval);
+ if ((k < sdebug_max_queue) || (k == retval))
atomic_set(&retired_max_queue, 0);
else
atomic_set(&retired_max_queue, k + 1);
}
- spin_unlock_irqrestore(&queued_arr_lock, iflags);
+ spin_unlock_irqrestore(&sqp->qc_lock, iflags);
scp->scsi_done(scp); /* callback to mid level */
}
/* When high resolution timer goes off this function is called. */
-static enum hrtimer_restart
-sdebug_q_cmd_hrt_complete(struct hrtimer *timer)
+static enum hrtimer_restart sdebug_q_cmd_hrt_complete(struct hrtimer *timer)
{
- int qa_indx;
- int retiring = 0;
- unsigned long iflags;
- struct sdebug_hrtimer *sd_hrtp = (struct sdebug_hrtimer *)timer;
- struct sdebug_queued_cmd *sqcp;
- struct scsi_cmnd *scp;
- struct sdebug_dev_info *devip;
-
- atomic_inc(&sdebug_completions);
- qa_indx = sd_hrtp->qa_indx;
- if ((qa_indx < 0) || (qa_indx >= SCSI_DEBUG_CANQUEUE)) {
- pr_err("wild qa_indx=%d\n", qa_indx);
- goto the_end;
- }
- spin_lock_irqsave(&queued_arr_lock, iflags);
- sqcp = &queued_arr[qa_indx];
- scp = sqcp->a_cmnd;
- if (NULL == scp) {
- spin_unlock_irqrestore(&queued_arr_lock, iflags);
- pr_err("scp is NULL\n");
- goto the_end;
- }
- devip = (struct sdebug_dev_info *)scp->device->hostdata;
- if (devip)
- atomic_dec(&devip->num_in_q);
- else
- pr_err("devip=NULL\n");
- if (atomic_read(&retired_max_queue) > 0)
- retiring = 1;
-
- sqcp->a_cmnd = NULL;
- if (!test_and_clear_bit(qa_indx, queued_in_use_bm)) {
- spin_unlock_irqrestore(&queued_arr_lock, iflags);
- pr_err("Unexpected completion\n");
- goto the_end;
- }
-
- if (unlikely(retiring)) { /* user has reduced max_queue */
- int k, retval;
-
- retval = atomic_read(&retired_max_queue);
- if (qa_indx >= retval) {
- spin_unlock_irqrestore(&queued_arr_lock, iflags);
- pr_err("index %d too large\n", retval);
- goto the_end;
- }
- k = find_last_bit(queued_in_use_bm, retval);
- if ((k < scsi_debug_max_queue) || (k == retval))
- atomic_set(&retired_max_queue, 0);
- else
- atomic_set(&retired_max_queue, k + 1);
- }
- spin_unlock_irqrestore(&queued_arr_lock, iflags);
- scp->scsi_done(scp); /* callback to mid level */
-the_end:
+ struct sdebug_defer *sd_dp = container_of(timer, struct sdebug_defer,
+ hrt);
+ sdebug_q_cmd_complete(sd_dp);
return HRTIMER_NORESTART;
}
-static struct sdebug_dev_info *
-sdebug_device_create(struct sdebug_host_info *sdbg_host, gfp_t flags)
+/* When work queue schedules work, it calls this function. */
+static void sdebug_q_cmd_wq_complete(struct work_struct *work)
+{
+ struct sdebug_defer *sd_dp = container_of(work, struct sdebug_defer,
+ ew.work);
+ sdebug_q_cmd_complete(sd_dp);
+}
+
+static bool got_shared_uuid;
+static uuid_be shared_uuid;
+
+static struct sdebug_dev_info *sdebug_device_create(
+ struct sdebug_host_info *sdbg_host, gfp_t flags)
{
struct sdebug_dev_info *devip;
devip = kzalloc(sizeof(*devip), flags);
if (devip) {
+ if (sdebug_uuid_ctl == 1)
+ uuid_be_gen(&devip->lu_name);
+ else if (sdebug_uuid_ctl == 2) {
+ if (got_shared_uuid)
+ devip->lu_name = shared_uuid;
+ else {
+ uuid_be_gen(&shared_uuid);
+ got_shared_uuid = true;
+ devip->lu_name = shared_uuid;
+ }
+ }
devip->sdbg_host = sdbg_host;
list_add_tail(&devip->dev_list, &sdbg_host->dev_info_list);
}
return devip;
}
-static struct sdebug_dev_info * devInfoReg(struct scsi_device * sdev)
+static struct sdebug_dev_info *find_build_dev_info(struct scsi_device *sdev)
{
- struct sdebug_host_info * sdbg_host;
- struct sdebug_dev_info * open_devip = NULL;
- struct sdebug_dev_info * devip =
- (struct sdebug_dev_info *)sdev->hostdata;
+ struct sdebug_host_info *sdbg_host;
+ struct sdebug_dev_info *open_devip = NULL;
+ struct sdebug_dev_info *devip;
- if (devip)
- return devip;
sdbg_host = *(struct sdebug_host_info **)shost_priv(sdev->host);
if (!sdbg_host) {
pr_err("Host info NULL\n");
@@ -3614,7 +3589,7 @@ static struct sdebug_dev_info * devInfoReg(struct scsi_device * sdev)
static int scsi_debug_slave_alloc(struct scsi_device *sdp)
{
- if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
+ if (sdebug_verbose)
pr_info("slave_alloc <%u %u %u %llu>\n",
sdp->host->host_no, sdp->channel, sdp->id, sdp->lun);
queue_flag_set_unlocked(QUEUE_FLAG_BIDI, sdp->request_queue);
@@ -3623,19 +3598,22 @@ static int scsi_debug_slave_alloc(struct scsi_device *sdp)
static int scsi_debug_slave_configure(struct scsi_device *sdp)
{
- struct sdebug_dev_info *devip;
+ struct sdebug_dev_info *devip =
+ (struct sdebug_dev_info *)sdp->hostdata;
- if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
+ if (sdebug_verbose)
pr_info("slave_configure <%u %u %u %llu>\n",
sdp->host->host_no, sdp->channel, sdp->id, sdp->lun);
- if (sdp->host->max_cmd_len != SCSI_DEBUG_MAX_CMD_LEN)
- sdp->host->max_cmd_len = SCSI_DEBUG_MAX_CMD_LEN;
- devip = devInfoReg(sdp);
- if (NULL == devip)
- return 1; /* no resources, will be marked offline */
+ if (sdp->host->max_cmd_len != SDEBUG_MAX_CMD_LEN)
+ sdp->host->max_cmd_len = SDEBUG_MAX_CMD_LEN;
+ if (devip == NULL) {
+ devip = find_build_dev_info(sdp);
+ if (devip == NULL)
+ return 1; /* no resources, will be marked offline */
+ }
sdp->hostdata = devip;
blk_queue_max_segment_size(sdp->request_queue, -1U);
- if (scsi_debug_no_uld)
+ if (sdebug_no_uld)
sdp->no_uld_attach = 1;
return 0;
}
@@ -3645,7 +3623,7 @@ static void scsi_debug_slave_destroy(struct scsi_device *sdp)
struct sdebug_dev_info *devip =
(struct sdebug_dev_info *)sdp->hostdata;
- if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
+ if (sdebug_verbose)
pr_info("slave_destroy <%u %u %u %llu>\n",
sdp->host->host_no, sdp->channel, sdp->id, sdp->lun);
if (devip) {
@@ -3655,135 +3633,130 @@ static void scsi_debug_slave_destroy(struct scsi_device *sdp)
}
}
-/* Returns 1 if cmnd found (deletes its timer or tasklet), else returns 0 */
-static int stop_queued_cmnd(struct scsi_cmnd *cmnd)
+static void stop_qc_helper(struct sdebug_defer *sd_dp)
+{
+ if (!sd_dp)
+ return;
+ if ((sdebug_jdelay > 0) || (sdebug_ndelay > 0))
+ hrtimer_cancel(&sd_dp->hrt);
+ else if (sdebug_jdelay < 0)
+ cancel_work_sync(&sd_dp->ew.work);
+}
+
+/* If @cmnd found deletes its timer or work queue and returns true; else
+ returns false */
+static bool stop_queued_cmnd(struct scsi_cmnd *cmnd)
{
unsigned long iflags;
- int k, qmax, r_qmax;
+ int j, k, qmax, r_qmax;
+ struct sdebug_queue *sqp;
struct sdebug_queued_cmd *sqcp;
struct sdebug_dev_info *devip;
-
- spin_lock_irqsave(&queued_arr_lock, iflags);
- qmax = scsi_debug_max_queue;
- r_qmax = atomic_read(&retired_max_queue);
- if (r_qmax > qmax)
- qmax = r_qmax;
- for (k = 0; k < qmax; ++k) {
- if (test_bit(k, queued_in_use_bm)) {
- sqcp = &queued_arr[k];
- if (cmnd == sqcp->a_cmnd) {
+ struct sdebug_defer *sd_dp;
+
+ for (j = 0, sqp = sdebug_q_arr; j < submit_queues; ++j, ++sqp) {
+ spin_lock_irqsave(&sqp->qc_lock, iflags);
+ qmax = sdebug_max_queue;
+ r_qmax = atomic_read(&retired_max_queue);
+ if (r_qmax > qmax)
+ qmax = r_qmax;
+ for (k = 0; k < qmax; ++k) {
+ if (test_bit(k, sqp->in_use_bm)) {
+ sqcp = &sqp->qc_arr[k];
+ if (cmnd != sqcp->a_cmnd)
+ continue;
+ /* found */
devip = (struct sdebug_dev_info *)
- cmnd->device->hostdata;
+ cmnd->device->hostdata;
if (devip)
atomic_dec(&devip->num_in_q);
sqcp->a_cmnd = NULL;
- spin_unlock_irqrestore(&queued_arr_lock,
- iflags);
- if (scsi_debug_ndelay > 0) {
- if (sqcp->sd_hrtp)
- hrtimer_cancel(
- &sqcp->sd_hrtp->hrt);
- } else if (scsi_debug_delay > 0) {
- if (sqcp->cmnd_timerp)
- del_timer_sync(
- sqcp->cmnd_timerp);
- } else if (scsi_debug_delay < 0) {
- if (sqcp->tletp)
- tasklet_kill(sqcp->tletp);
- }
- clear_bit(k, queued_in_use_bm);
- return 1;
+ sd_dp = sqcp->sd_dp;
+ spin_unlock_irqrestore(&sqp->qc_lock, iflags);
+ stop_qc_helper(sd_dp);
+ clear_bit(k, sqp->in_use_bm);
+ return true;
}
}
+ spin_unlock_irqrestore(&sqp->qc_lock, iflags);
}
- spin_unlock_irqrestore(&queued_arr_lock, iflags);
- return 0;
+ return false;
}
-/* Deletes (stops) timers or tasklets of all queued commands */
+/* Deletes (stops) timers or work queues of all queued commands */
static void stop_all_queued(void)
{
unsigned long iflags;
- int k;
+ int j, k;
+ struct sdebug_queue *sqp;
struct sdebug_queued_cmd *sqcp;
struct sdebug_dev_info *devip;
-
- spin_lock_irqsave(&queued_arr_lock, iflags);
- for (k = 0; k < SCSI_DEBUG_CANQUEUE; ++k) {
- if (test_bit(k, queued_in_use_bm)) {
- sqcp = &queued_arr[k];
- if (sqcp->a_cmnd) {
+ struct sdebug_defer *sd_dp;
+
+ for (j = 0, sqp = sdebug_q_arr; j < submit_queues; ++j, ++sqp) {
+ spin_lock_irqsave(&sqp->qc_lock, iflags);
+ for (k = 0; k < SDEBUG_CANQUEUE; ++k) {
+ if (test_bit(k, sqp->in_use_bm)) {
+ sqcp = &sqp->qc_arr[k];
+ if (sqcp->a_cmnd == NULL)
+ continue;
devip = (struct sdebug_dev_info *)
sqcp->a_cmnd->device->hostdata;
if (devip)
atomic_dec(&devip->num_in_q);
sqcp->a_cmnd = NULL;
- spin_unlock_irqrestore(&queued_arr_lock,
- iflags);
- if (scsi_debug_ndelay > 0) {
- if (sqcp->sd_hrtp)
- hrtimer_cancel(
- &sqcp->sd_hrtp->hrt);
- } else if (scsi_debug_delay > 0) {
- if (sqcp->cmnd_timerp)
- del_timer_sync(
- sqcp->cmnd_timerp);
- } else if (scsi_debug_delay < 0) {
- if (sqcp->tletp)
- tasklet_kill(sqcp->tletp);
- }
- clear_bit(k, queued_in_use_bm);
- spin_lock_irqsave(&queued_arr_lock, iflags);
+ sd_dp = sqcp->sd_dp;
+ spin_unlock_irqrestore(&sqp->qc_lock, iflags);
+ stop_qc_helper(sd_dp);
+ clear_bit(k, sqp->in_use_bm);
+ spin_lock_irqsave(&sqp->qc_lock, iflags);
}
}
+ spin_unlock_irqrestore(&sqp->qc_lock, iflags);
}
- spin_unlock_irqrestore(&queued_arr_lock, iflags);
}
/* Free queued command memory on heap */
static void free_all_queued(void)
{
- unsigned long iflags;
- int k;
+ int j, k;
+ struct sdebug_queue *sqp;
struct sdebug_queued_cmd *sqcp;
- spin_lock_irqsave(&queued_arr_lock, iflags);
- for (k = 0; k < SCSI_DEBUG_CANQUEUE; ++k) {
- sqcp = &queued_arr[k];
- kfree(sqcp->cmnd_timerp);
- sqcp->cmnd_timerp = NULL;
- kfree(sqcp->tletp);
- sqcp->tletp = NULL;
- kfree(sqcp->sd_hrtp);
- sqcp->sd_hrtp = NULL;
+ for (j = 0, sqp = sdebug_q_arr; j < submit_queues; ++j, ++sqp) {
+ for (k = 0; k < SDEBUG_CANQUEUE; ++k) {
+ sqcp = &sqp->qc_arr[k];
+ kfree(sqcp->sd_dp);
+ sqcp->sd_dp = NULL;
+ }
}
- spin_unlock_irqrestore(&queued_arr_lock, iflags);
}
static int scsi_debug_abort(struct scsi_cmnd *SCpnt)
{
+ bool ok;
+
++num_aborts;
if (SCpnt) {
- if (SCpnt->device &&
- (SCSI_DEBUG_OPT_ALL_NOISE & scsi_debug_opts))
- sdev_printk(KERN_INFO, SCpnt->device, "%s\n",
- __func__);
- stop_queued_cmnd(SCpnt);
+ ok = stop_queued_cmnd(SCpnt);
+ if (SCpnt->device && (SDEBUG_OPT_ALL_NOISE & sdebug_opts))
+ sdev_printk(KERN_INFO, SCpnt->device,
+ "%s: command%s found\n", __func__,
+ ok ? "" : " not");
}
return SUCCESS;
}
static int scsi_debug_device_reset(struct scsi_cmnd * SCpnt)
{
- struct sdebug_dev_info * devip;
-
++num_dev_resets;
if (SCpnt && SCpnt->device) {
struct scsi_device *sdp = SCpnt->device;
+ struct sdebug_dev_info *devip =
+ (struct sdebug_dev_info *)sdp->hostdata;
- if (SCSI_DEBUG_OPT_ALL_NOISE & scsi_debug_opts)
+ if (SDEBUG_OPT_ALL_NOISE & sdebug_opts)
sdev_printk(KERN_INFO, sdp, "%s\n", __func__);
- devip = devInfoReg(sdp);
if (devip)
set_bit(SDEBUG_UA_POR, devip->uas_bm);
}
@@ -3804,7 +3777,7 @@ static int scsi_debug_target_reset(struct scsi_cmnd *SCpnt)
sdp = SCpnt->device;
if (!sdp)
goto lie;
- if (SCSI_DEBUG_OPT_ALL_NOISE & scsi_debug_opts)
+ if (SDEBUG_OPT_ALL_NOISE & sdebug_opts)
sdev_printk(KERN_INFO, sdp, "%s\n", __func__);
hp = sdp->host;
if (!hp)
@@ -3819,7 +3792,7 @@ static int scsi_debug_target_reset(struct scsi_cmnd *SCpnt)
++k;
}
}
- if (SCSI_DEBUG_OPT_RESET_NOISE & scsi_debug_opts)
+ if (SDEBUG_OPT_RESET_NOISE & sdebug_opts)
sdev_printk(KERN_INFO, sdp,
"%s: %d device(s) found in target\n", __func__, k);
lie:
@@ -3838,7 +3811,7 @@ static int scsi_debug_bus_reset(struct scsi_cmnd * SCpnt)
if (!(SCpnt && SCpnt->device))
goto lie;
sdp = SCpnt->device;
- if (SCSI_DEBUG_OPT_ALL_NOISE & scsi_debug_opts)
+ if (SDEBUG_OPT_ALL_NOISE & sdebug_opts)
sdev_printk(KERN_INFO, sdp, "%s\n", __func__);
hp = sdp->host;
if (hp) {
@@ -3852,7 +3825,7 @@ static int scsi_debug_bus_reset(struct scsi_cmnd * SCpnt)
}
}
}
- if (SCSI_DEBUG_OPT_RESET_NOISE & scsi_debug_opts)
+ if (SDEBUG_OPT_RESET_NOISE & sdebug_opts)
sdev_printk(KERN_INFO, sdp,
"%s: %d device(s) found in host\n", __func__, k);
lie:
@@ -3866,7 +3839,7 @@ static int scsi_debug_host_reset(struct scsi_cmnd * SCpnt)
int k = 0;
++num_host_resets;
- if ((SCpnt->device) && (SCSI_DEBUG_OPT_ALL_NOISE & scsi_debug_opts))
+ if ((SCpnt->device) && (SDEBUG_OPT_ALL_NOISE & sdebug_opts))
sdev_printk(KERN_INFO, SCpnt->device, "%s\n", __func__);
spin_lock(&sdebug_host_list_lock);
list_for_each_entry(sdbg_host, &sdebug_host_list, host_list) {
@@ -3878,7 +3851,7 @@ static int scsi_debug_host_reset(struct scsi_cmnd * SCpnt)
}
spin_unlock(&sdebug_host_list_lock);
stop_all_queued();
- if (SCSI_DEBUG_OPT_RESET_NOISE & scsi_debug_opts)
+ if (SDEBUG_OPT_RESET_NOISE & sdebug_opts)
sdev_printk(KERN_INFO, SCpnt->device,
"%s: %d device(s) found\n", __func__, k);
return SUCCESS;
@@ -3893,22 +3866,22 @@ static void __init sdebug_build_parts(unsigned char *ramp,
int heads_by_sects, start_sec, end_sec;
/* assume partition table already zeroed */
- if ((scsi_debug_num_parts < 1) || (store_size < 1048576))
+ if ((sdebug_num_parts < 1) || (store_size < 1048576))
return;
- if (scsi_debug_num_parts > SDEBUG_MAX_PARTS) {
- scsi_debug_num_parts = SDEBUG_MAX_PARTS;
+ if (sdebug_num_parts > SDEBUG_MAX_PARTS) {
+ sdebug_num_parts = SDEBUG_MAX_PARTS;
pr_warn("reducing partitions to %d\n", SDEBUG_MAX_PARTS);
}
num_sectors = (int)sdebug_store_sectors;
sectors_per_part = (num_sectors - sdebug_sectors_per)
- / scsi_debug_num_parts;
+ / sdebug_num_parts;
heads_by_sects = sdebug_heads * sdebug_sectors_per;
starts[0] = sdebug_sectors_per;
- for (k = 1; k < scsi_debug_num_parts; ++k)
+ for (k = 1; k < sdebug_num_parts; ++k)
starts[k] = ((k * sectors_per_part) / heads_by_sects)
* heads_by_sects;
- starts[scsi_debug_num_parts] = num_sectors;
- starts[scsi_debug_num_parts + 1] = 0;
+ starts[sdebug_num_parts] = num_sectors;
+ starts[sdebug_num_parts + 1] = 0;
ramp[510] = 0x55; /* magic partition markings */
ramp[511] = 0xAA;
@@ -3934,67 +3907,118 @@ static void __init sdebug_build_parts(unsigned char *ramp,
}
}
-static int
-schedule_resp(struct scsi_cmnd *cmnd, struct sdebug_dev_info *devip,
- int scsi_result, int delta_jiff)
+static void block_unblock_all_queues(bool block)
+{
+ int j;
+ struct sdebug_queue *sqp;
+
+ for (j = 0, sqp = sdebug_q_arr; j < submit_queues; ++j, ++sqp)
+ atomic_set(&sqp->blocked, (int)block);
+}
+
+/* Adjust (by rounding down) the sdebug_cmnd_count so abs(every_nth)-1
+ * commands will be processed normally before triggers occur.
+ */
+static void tweak_cmnd_count(void)
+{
+ int count, modulo;
+
+ modulo = abs(sdebug_every_nth);
+ if (modulo < 2)
+ return;
+ block_unblock_all_queues(true);
+ count = atomic_read(&sdebug_cmnd_count);
+ atomic_set(&sdebug_cmnd_count, (count / modulo) * modulo);
+ block_unblock_all_queues(false);
+}
+
+static void clear_queue_stats(void)
+{
+ atomic_set(&sdebug_cmnd_count, 0);
+ atomic_set(&sdebug_completions, 0);
+ atomic_set(&sdebug_miss_cpus, 0);
+ atomic_set(&sdebug_a_tsf, 0);
+}
+
+static void setup_inject(struct sdebug_queue *sqp,
+ struct sdebug_queued_cmd *sqcp)
+{
+ if ((atomic_read(&sdebug_cmnd_count) % abs(sdebug_every_nth)) > 0)
+ return;
+ sqcp->inj_recovered = !!(SDEBUG_OPT_RECOVERED_ERR & sdebug_opts);
+ sqcp->inj_transport = !!(SDEBUG_OPT_TRANSPORT_ERR & sdebug_opts);
+ sqcp->inj_dif = !!(SDEBUG_OPT_DIF_ERR & sdebug_opts);
+ sqcp->inj_dix = !!(SDEBUG_OPT_DIX_ERR & sdebug_opts);
+ sqcp->inj_short = !!(SDEBUG_OPT_SHORT_TRANSFER & sdebug_opts);
+}
+
+/* Complete the processing of the thread that queued a SCSI command to this
+ * driver. It either completes the command by calling cmnd_done() or
+ * schedules a hr timer or work queue then returns 0. Returns
+ * SCSI_MLQUEUE_HOST_BUSY if temporarily out of resources.
+ */
+static int schedule_resp(struct scsi_cmnd *cmnd, struct sdebug_dev_info *devip,
+ int scsi_result, int delta_jiff)
{
unsigned long iflags;
int k, num_in_q, qdepth, inject;
- struct sdebug_queued_cmd *sqcp = NULL;
+ struct sdebug_queue *sqp;
+ struct sdebug_queued_cmd *sqcp;
struct scsi_device *sdp;
+ struct sdebug_defer *sd_dp;
- /* this should never happen */
- if (WARN_ON(!cmnd))
- return SCSI_MLQUEUE_HOST_BUSY;
-
- if (NULL == devip) {
- pr_warn("called devip == NULL\n");
- /* no particularly good error to report back */
- return SCSI_MLQUEUE_HOST_BUSY;
+ if (unlikely(devip == NULL)) {
+ if (scsi_result == 0)
+ scsi_result = DID_NO_CONNECT << 16;
+ goto respond_in_thread;
}
-
sdp = cmnd->device;
- if ((scsi_result) && (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts))
+ if (unlikely(sdebug_verbose && scsi_result))
sdev_printk(KERN_INFO, sdp, "%s: non-zero result=0x%x\n",
__func__, scsi_result);
if (delta_jiff == 0)
goto respond_in_thread;
/* schedule the response at a later time if resources permit */
- spin_lock_irqsave(&queued_arr_lock, iflags);
+ sqp = get_queue(cmnd);
+ spin_lock_irqsave(&sqp->qc_lock, iflags);
+ if (unlikely(atomic_read(&sqp->blocked))) {
+ spin_unlock_irqrestore(&sqp->qc_lock, iflags);
+ return SCSI_MLQUEUE_HOST_BUSY;
+ }
num_in_q = atomic_read(&devip->num_in_q);
qdepth = cmnd->device->queue_depth;
inject = 0;
- if ((qdepth > 0) && (num_in_q >= qdepth)) {
+ if (unlikely((qdepth > 0) && (num_in_q >= qdepth))) {
if (scsi_result) {
- spin_unlock_irqrestore(&queued_arr_lock, iflags);
+ spin_unlock_irqrestore(&sqp->qc_lock, iflags);
goto respond_in_thread;
} else
scsi_result = device_qfull_result;
- } else if ((scsi_debug_every_nth != 0) &&
- (SCSI_DEBUG_OPT_RARE_TSF & scsi_debug_opts) &&
- (scsi_result == 0)) {
+ } else if (unlikely(sdebug_every_nth &&
+ (SDEBUG_OPT_RARE_TSF & sdebug_opts) &&
+ (scsi_result == 0))) {
if ((num_in_q == (qdepth - 1)) &&
(atomic_inc_return(&sdebug_a_tsf) >=
- abs(scsi_debug_every_nth))) {
+ abs(sdebug_every_nth))) {
atomic_set(&sdebug_a_tsf, 0);
inject = 1;
scsi_result = device_qfull_result;
}
}
- k = find_first_zero_bit(queued_in_use_bm, scsi_debug_max_queue);
- if (k >= scsi_debug_max_queue) {
- spin_unlock_irqrestore(&queued_arr_lock, iflags);
+ k = find_first_zero_bit(sqp->in_use_bm, sdebug_max_queue);
+ if (unlikely(k >= sdebug_max_queue)) {
+ spin_unlock_irqrestore(&sqp->qc_lock, iflags);
if (scsi_result)
goto respond_in_thread;
- else if (SCSI_DEBUG_OPT_ALL_TSF & scsi_debug_opts)
+ else if (SDEBUG_OPT_ALL_TSF & sdebug_opts)
scsi_result = device_qfull_result;
- if (SCSI_DEBUG_OPT_Q_NOISE & scsi_debug_opts)
+ if (SDEBUG_OPT_Q_NOISE & sdebug_opts)
sdev_printk(KERN_INFO, sdp,
"%s: max_queue=%d exceeded, %s\n",
- __func__, scsi_debug_max_queue,
+ __func__, sdebug_max_queue,
(scsi_result ? "status: TASK SET FULL" :
"report: host busy"));
if (scsi_result)
@@ -4002,55 +4026,56 @@ schedule_resp(struct scsi_cmnd *cmnd, struct sdebug_dev_info *devip,
else
return SCSI_MLQUEUE_HOST_BUSY;
}
- __set_bit(k, queued_in_use_bm);
+ __set_bit(k, sqp->in_use_bm);
atomic_inc(&devip->num_in_q);
- sqcp = &queued_arr[k];
+ sqcp = &sqp->qc_arr[k];
sqcp->a_cmnd = cmnd;
+ cmnd->host_scribble = (unsigned char *)sqcp;
cmnd->result = scsi_result;
- spin_unlock_irqrestore(&queued_arr_lock, iflags);
- if (delta_jiff > 0) {
- if (NULL == sqcp->cmnd_timerp) {
- sqcp->cmnd_timerp = kmalloc(sizeof(struct timer_list),
- GFP_ATOMIC);
- if (NULL == sqcp->cmnd_timerp)
- return SCSI_MLQUEUE_HOST_BUSY;
- init_timer(sqcp->cmnd_timerp);
- }
- sqcp->cmnd_timerp->function = sdebug_q_cmd_complete;
- sqcp->cmnd_timerp->data = k;
- sqcp->cmnd_timerp->expires = get_jiffies_64() + delta_jiff;
- add_timer(sqcp->cmnd_timerp);
- } else if (scsi_debug_ndelay > 0) {
- ktime_t kt = ktime_set(0, scsi_debug_ndelay);
- struct sdebug_hrtimer *sd_hp = sqcp->sd_hrtp;
-
- if (NULL == sd_hp) {
- sd_hp = kmalloc(sizeof(*sd_hp), GFP_ATOMIC);
- if (NULL == sd_hp)
+ sd_dp = sqcp->sd_dp;
+ spin_unlock_irqrestore(&sqp->qc_lock, iflags);
+ if (unlikely(sdebug_every_nth && sdebug_any_injecting_opt))
+ setup_inject(sqp, sqcp);
+ if (delta_jiff > 0 || sdebug_ndelay > 0) {
+ ktime_t kt;
+
+ if (delta_jiff > 0) {
+ struct timespec ts;
+
+ jiffies_to_timespec(delta_jiff, &ts);
+ kt = ktime_set(ts.tv_sec, ts.tv_nsec);
+ } else
+ kt = ktime_set(0, sdebug_ndelay);
+ if (NULL == sd_dp) {
+ sd_dp = kzalloc(sizeof(*sd_dp), GFP_ATOMIC);
+ if (NULL == sd_dp)
return SCSI_MLQUEUE_HOST_BUSY;
- sqcp->sd_hrtp = sd_hp;
- hrtimer_init(&sd_hp->hrt, CLOCK_MONOTONIC,
- HRTIMER_MODE_REL);
- sd_hp->hrt.function = sdebug_q_cmd_hrt_complete;
- sd_hp->qa_indx = k;
+ sqcp->sd_dp = sd_dp;
+ hrtimer_init(&sd_dp->hrt, CLOCK_MONOTONIC,
+ HRTIMER_MODE_REL_PINNED);
+ sd_dp->hrt.function = sdebug_q_cmd_hrt_complete;
+ sd_dp->sqa_idx = sqp - sdebug_q_arr;
+ sd_dp->qc_idx = k;
}
- hrtimer_start(&sd_hp->hrt, kt, HRTIMER_MODE_REL);
- } else { /* delay < 0 */
- if (NULL == sqcp->tletp) {
- sqcp->tletp = kmalloc(sizeof(*sqcp->tletp),
- GFP_ATOMIC);
- if (NULL == sqcp->tletp)
+ if (sdebug_statistics)
+ sd_dp->issuing_cpu = raw_smp_processor_id();
+ hrtimer_start(&sd_dp->hrt, kt, HRTIMER_MODE_REL_PINNED);
+ } else { /* jdelay < 0, use work queue */
+ if (NULL == sd_dp) {
+ sd_dp = kzalloc(sizeof(*sqcp->sd_dp), GFP_ATOMIC);
+ if (NULL == sd_dp)
return SCSI_MLQUEUE_HOST_BUSY;
- tasklet_init(sqcp->tletp,
- sdebug_q_cmd_complete, k);
+ sqcp->sd_dp = sd_dp;
+ sd_dp->sqa_idx = sqp - sdebug_q_arr;
+ sd_dp->qc_idx = k;
+ INIT_WORK(&sd_dp->ew.work, sdebug_q_cmd_wq_complete);
}
- if (-1 == delta_jiff)
- tasklet_hi_schedule(sqcp->tletp);
- else
- tasklet_schedule(sqcp->tletp);
+ if (sdebug_statistics)
+ sd_dp->issuing_cpu = raw_smp_processor_id();
+ schedule_work(&sd_dp->ew.work);
}
- if ((SCSI_DEBUG_OPT_Q_NOISE & scsi_debug_opts) &&
- (scsi_result == device_qfull_result))
+ if (unlikely((SDEBUG_OPT_Q_NOISE & sdebug_opts) &&
+ (scsi_result == device_qfull_result)))
sdev_printk(KERN_INFO, sdp,
"%s: num_in_q=%d +1, %s%s\n", __func__,
num_in_q, (inject ? "<inject> " : ""),
@@ -4069,52 +4094,55 @@ respond_in_thread: /* call back to mid-layer using invocation thread */
as it can when the corresponding attribute in the
/sys/bus/pseudo/drivers/scsi_debug directory is changed.
*/
-module_param_named(add_host, scsi_debug_add_host, int, S_IRUGO | S_IWUSR);
-module_param_named(ato, scsi_debug_ato, int, S_IRUGO);
-module_param_named(clustering, scsi_debug_clustering, bool, S_IRUGO | S_IWUSR);
-module_param_named(delay, scsi_debug_delay, int, S_IRUGO | S_IWUSR);
-module_param_named(dev_size_mb, scsi_debug_dev_size_mb, int, S_IRUGO);
-module_param_named(dif, scsi_debug_dif, int, S_IRUGO);
-module_param_named(dix, scsi_debug_dix, int, S_IRUGO);
-module_param_named(dsense, scsi_debug_dsense, int, S_IRUGO | S_IWUSR);
-module_param_named(every_nth, scsi_debug_every_nth, int, S_IRUGO | S_IWUSR);
-module_param_named(fake_rw, scsi_debug_fake_rw, int, S_IRUGO | S_IWUSR);
-module_param_named(guard, scsi_debug_guard, uint, S_IRUGO);
-module_param_named(host_lock, scsi_debug_host_lock, bool, S_IRUGO | S_IWUSR);
-module_param_named(lbpu, scsi_debug_lbpu, int, S_IRUGO);
-module_param_named(lbpws, scsi_debug_lbpws, int, S_IRUGO);
-module_param_named(lbpws10, scsi_debug_lbpws10, int, S_IRUGO);
-module_param_named(lbprz, scsi_debug_lbprz, int, S_IRUGO);
-module_param_named(lowest_aligned, scsi_debug_lowest_aligned, int, S_IRUGO);
-module_param_named(max_luns, scsi_debug_max_luns, int, S_IRUGO | S_IWUSR);
-module_param_named(max_queue, scsi_debug_max_queue, int, S_IRUGO | S_IWUSR);
-module_param_named(ndelay, scsi_debug_ndelay, int, S_IRUGO | S_IWUSR);
-module_param_named(no_lun_0, scsi_debug_no_lun_0, int, S_IRUGO | S_IWUSR);
-module_param_named(no_uld, scsi_debug_no_uld, int, S_IRUGO);
-module_param_named(num_parts, scsi_debug_num_parts, int, S_IRUGO);
-module_param_named(num_tgts, scsi_debug_num_tgts, int, S_IRUGO | S_IWUSR);
-module_param_named(opt_blks, scsi_debug_opt_blks, int, S_IRUGO);
-module_param_named(opts, scsi_debug_opts, int, S_IRUGO | S_IWUSR);
-module_param_named(physblk_exp, scsi_debug_physblk_exp, int, S_IRUGO);
-module_param_named(ptype, scsi_debug_ptype, int, S_IRUGO | S_IWUSR);
-module_param_named(removable, scsi_debug_removable, bool, S_IRUGO | S_IWUSR);
-module_param_named(scsi_level, scsi_debug_scsi_level, int, S_IRUGO);
-module_param_named(sector_size, scsi_debug_sector_size, int, S_IRUGO);
-module_param_named(strict, scsi_debug_strict, bool, S_IRUGO | S_IWUSR);
-module_param_named(unmap_alignment, scsi_debug_unmap_alignment, int, S_IRUGO);
-module_param_named(unmap_granularity, scsi_debug_unmap_granularity, int, S_IRUGO);
-module_param_named(unmap_max_blocks, scsi_debug_unmap_max_blocks, int, S_IRUGO);
-module_param_named(unmap_max_desc, scsi_debug_unmap_max_desc, int, S_IRUGO);
-module_param_named(virtual_gb, scsi_debug_virtual_gb, int, S_IRUGO | S_IWUSR);
-module_param_named(vpd_use_hostno, scsi_debug_vpd_use_hostno, int,
+module_param_named(add_host, sdebug_add_host, int, S_IRUGO | S_IWUSR);
+module_param_named(ato, sdebug_ato, int, S_IRUGO);
+module_param_named(clustering, sdebug_clustering, bool, S_IRUGO | S_IWUSR);
+module_param_named(delay, sdebug_jdelay, int, S_IRUGO | S_IWUSR);
+module_param_named(dev_size_mb, sdebug_dev_size_mb, int, S_IRUGO);
+module_param_named(dif, sdebug_dif, int, S_IRUGO);
+module_param_named(dix, sdebug_dix, int, S_IRUGO);
+module_param_named(dsense, sdebug_dsense, int, S_IRUGO | S_IWUSR);
+module_param_named(every_nth, sdebug_every_nth, int, S_IRUGO | S_IWUSR);
+module_param_named(fake_rw, sdebug_fake_rw, int, S_IRUGO | S_IWUSR);
+module_param_named(guard, sdebug_guard, uint, S_IRUGO);
+module_param_named(host_lock, sdebug_host_lock, bool, S_IRUGO | S_IWUSR);
+module_param_named(lbpu, sdebug_lbpu, int, S_IRUGO);
+module_param_named(lbpws, sdebug_lbpws, int, S_IRUGO);
+module_param_named(lbpws10, sdebug_lbpws10, int, S_IRUGO);
+module_param_named(lbprz, sdebug_lbprz, int, S_IRUGO);
+module_param_named(lowest_aligned, sdebug_lowest_aligned, int, S_IRUGO);
+module_param_named(max_luns, sdebug_max_luns, int, S_IRUGO | S_IWUSR);
+module_param_named(max_queue, sdebug_max_queue, int, S_IRUGO | S_IWUSR);
+module_param_named(ndelay, sdebug_ndelay, int, S_IRUGO | S_IWUSR);
+module_param_named(no_lun_0, sdebug_no_lun_0, int, S_IRUGO | S_IWUSR);
+module_param_named(no_uld, sdebug_no_uld, int, S_IRUGO);
+module_param_named(num_parts, sdebug_num_parts, int, S_IRUGO);
+module_param_named(num_tgts, sdebug_num_tgts, int, S_IRUGO | S_IWUSR);
+module_param_named(opt_blks, sdebug_opt_blks, int, S_IRUGO);
+module_param_named(opts, sdebug_opts, int, S_IRUGO | S_IWUSR);
+module_param_named(physblk_exp, sdebug_physblk_exp, int, S_IRUGO);
+module_param_named(ptype, sdebug_ptype, int, S_IRUGO | S_IWUSR);
+module_param_named(removable, sdebug_removable, bool, S_IRUGO | S_IWUSR);
+module_param_named(scsi_level, sdebug_scsi_level, int, S_IRUGO);
+module_param_named(sector_size, sdebug_sector_size, int, S_IRUGO);
+module_param_named(statistics, sdebug_statistics, bool, S_IRUGO | S_IWUSR);
+module_param_named(strict, sdebug_strict, bool, S_IRUGO | S_IWUSR);
+module_param_named(submit_queues, submit_queues, int, S_IRUGO);
+module_param_named(unmap_alignment, sdebug_unmap_alignment, int, S_IRUGO);
+module_param_named(unmap_granularity, sdebug_unmap_granularity, int, S_IRUGO);
+module_param_named(unmap_max_blocks, sdebug_unmap_max_blocks, int, S_IRUGO);
+module_param_named(unmap_max_desc, sdebug_unmap_max_desc, int, S_IRUGO);
+module_param_named(virtual_gb, sdebug_virtual_gb, int, S_IRUGO | S_IWUSR);
+module_param_named(uuid_ctl, sdebug_uuid_ctl, int, S_IRUGO);
+module_param_named(vpd_use_hostno, sdebug_vpd_use_hostno, int,
S_IRUGO | S_IWUSR);
-module_param_named(write_same_length, scsi_debug_write_same_length, int,
+module_param_named(write_same_length, sdebug_write_same_length, int,
S_IRUGO | S_IWUSR);
MODULE_AUTHOR("Eric Youngdale + Douglas Gilbert");
MODULE_DESCRIPTION("SCSI debug adapter driver");
MODULE_LICENSE("GPL");
-MODULE_VERSION(SCSI_DEBUG_VERSION);
+MODULE_VERSION(SDEBUG_VERSION);
MODULE_PARM_DESC(add_host, "0..127 hosts allowed(def=1)");
MODULE_PARM_DESC(ato, "application tag ownership: 0=disk 1=host (def=1)");
@@ -4127,11 +4155,12 @@ MODULE_PARM_DESC(dsense, "use descriptor sense format(def=0 -> fixed)");
MODULE_PARM_DESC(every_nth, "timeout every nth command(def=0)");
MODULE_PARM_DESC(fake_rw, "fake reads/writes instead of copying (def=0)");
MODULE_PARM_DESC(guard, "protection checksum: 0=crc, 1=ip (def=0)");
-MODULE_PARM_DESC(host_lock, "use host_lock around all commands (def=0)");
+MODULE_PARM_DESC(host_lock, "host_lock is ignored (def=0)");
MODULE_PARM_DESC(lbpu, "enable LBP, support UNMAP command (def=0)");
MODULE_PARM_DESC(lbpws, "enable LBP, support WRITE SAME(16) with UNMAP bit (def=0)");
MODULE_PARM_DESC(lbpws10, "enable LBP, support WRITE SAME(10) with UNMAP bit (def=0)");
-MODULE_PARM_DESC(lbprz, "unmapped blocks return 0 on read (def=1)");
+MODULE_PARM_DESC(lbprz,
+ "on read unmapped LBs return 0 when 1 (def), return 0xff when 2");
MODULE_PARM_DESC(lowest_aligned, "lowest aligned lba (def=0)");
MODULE_PARM_DESC(max_luns, "number of LUNs per target to simulate(def=1)");
MODULE_PARM_DESC(max_queue, "max number of queued commands (1 to max(def))");
@@ -4145,30 +4174,42 @@ MODULE_PARM_DESC(opts, "1->noise, 2->medium_err, 4->timeout, 8->recovered_err...
MODULE_PARM_DESC(physblk_exp, "physical block exponent (def=0)");
MODULE_PARM_DESC(ptype, "SCSI peripheral type(def=0[disk])");
MODULE_PARM_DESC(removable, "claim to have removable media (def=0)");
-MODULE_PARM_DESC(scsi_level, "SCSI level to simulate(def=6[SPC-4])");
+MODULE_PARM_DESC(scsi_level, "SCSI level to simulate(def=7[SPC-5])");
MODULE_PARM_DESC(sector_size, "logical block size in bytes (def=512)");
+MODULE_PARM_DESC(statistics, "collect statistics on commands, queues (def=0)");
MODULE_PARM_DESC(strict, "stricter checks: reserved field in cdb (def=0)");
+MODULE_PARM_DESC(submit_queues, "support for block multi-queue (def=1)");
MODULE_PARM_DESC(unmap_alignment, "lowest aligned thin provisioning lba (def=0)");
MODULE_PARM_DESC(unmap_granularity, "thin provisioning granularity in blocks (def=1)");
MODULE_PARM_DESC(unmap_max_blocks, "max # of blocks can be unmapped in one cmd (def=0xffffffff)");
MODULE_PARM_DESC(unmap_max_desc, "max # of ranges that can be unmapped in one cmd (def=256)");
+MODULE_PARM_DESC(uuid_ctl,
+ "1->use uuid for lu name, 0->don't, 2->all use same (def=0)");
MODULE_PARM_DESC(virtual_gb, "virtual gigabyte (GiB) size (def=0 -> use dev_size_mb)");
MODULE_PARM_DESC(vpd_use_hostno, "0 -> dev ids ignore hostno (def=1 -> unique dev ids)");
MODULE_PARM_DESC(write_same_length, "Maximum blocks per WRITE SAME cmd (def=0xffff)");
-static char sdebug_info[256];
+#define SDEBUG_INFO_LEN 256
+static char sdebug_info[SDEBUG_INFO_LEN];
static const char * scsi_debug_info(struct Scsi_Host * shp)
{
- sprintf(sdebug_info, "scsi_debug, version %s [%s], "
- "dev_size_mb=%d, opts=0x%x", SCSI_DEBUG_VERSION,
- scsi_debug_version_date, scsi_debug_dev_size_mb,
- scsi_debug_opts);
+ int k;
+
+ k = scnprintf(sdebug_info, SDEBUG_INFO_LEN, "%s: version %s [%s]\n",
+ my_name, SDEBUG_VERSION, sdebug_version_date);
+ if (k >= (SDEBUG_INFO_LEN - 1))
+ return sdebug_info;
+ scnprintf(sdebug_info + k, SDEBUG_INFO_LEN - k,
+ " dev_size_mb=%d, opts=0x%x, submit_queues=%d, %s=%d",
+ sdebug_dev_size_mb, sdebug_opts, submit_queues,
+ "statistics", (int)sdebug_statistics);
return sdebug_info;
}
/* 'echo <val> > /proc/scsi/scsi_debug/<host_id>' writes to opts */
-static int scsi_debug_write_info(struct Scsi_Host *host, char *buffer, int length)
+static int scsi_debug_write_info(struct Scsi_Host *host, char *buffer,
+ int length)
{
char arr[16];
int opts;
@@ -4180,9 +4221,11 @@ static int scsi_debug_write_info(struct Scsi_Host *host, char *buffer, int lengt
arr[minLen] = '\0';
if (1 != sscanf(arr, "%d", &opts))
return -EINVAL;
- scsi_debug_opts = opts;
- if (scsi_debug_every_nth != 0)
- atomic_set(&sdebug_cmnd_count, 0);
+ sdebug_opts = opts;
+ sdebug_verbose = !!(SDEBUG_OPT_NOISE & opts);
+ sdebug_any_injecting_opt = !!(SDEBUG_OPT_ALL_INJECTING & opts);
+ if (sdebug_every_nth != 0)
+ tweak_cmnd_count();
return length;
}
@@ -4191,69 +4234,83 @@ static int scsi_debug_write_info(struct Scsi_Host *host, char *buffer, int lengt
* output are not atomics so might be inaccurate in a busy system. */
static int scsi_debug_show_info(struct seq_file *m, struct Scsi_Host *host)
{
- int f, l;
- char b[32];
-
- if (scsi_debug_every_nth > 0)
- snprintf(b, sizeof(b), " (curr:%d)",
- ((SCSI_DEBUG_OPT_RARE_TSF & scsi_debug_opts) ?
- atomic_read(&sdebug_a_tsf) :
- atomic_read(&sdebug_cmnd_count)));
- else
- b[0] = '\0';
-
- seq_printf(m, "scsi_debug adapter driver, version %s [%s]\n"
- "num_tgts=%d, shared (ram) size=%d MB, opts=0x%x, "
- "every_nth=%d%s\n"
- "delay=%d, ndelay=%d, max_luns=%d, q_completions=%d\n"
- "sector_size=%d bytes, cylinders=%d, heads=%d, sectors=%d\n"
- "command aborts=%d; RESETs: device=%d, target=%d, bus=%d, "
- "host=%d\ndix_reads=%d dix_writes=%d dif_errors=%d "
- "usec_in_jiffy=%lu\n",
- SCSI_DEBUG_VERSION, scsi_debug_version_date,
- scsi_debug_num_tgts, scsi_debug_dev_size_mb, scsi_debug_opts,
- scsi_debug_every_nth, b, scsi_debug_delay, scsi_debug_ndelay,
- scsi_debug_max_luns, atomic_read(&sdebug_completions),
- scsi_debug_sector_size, sdebug_cylinders_per, sdebug_heads,
- sdebug_sectors_per, num_aborts, num_dev_resets,
- num_target_resets, num_bus_resets, num_host_resets,
- dix_reads, dix_writes, dif_errors, TICK_NSEC / 1000);
-
- f = find_first_bit(queued_in_use_bm, scsi_debug_max_queue);
- if (f != scsi_debug_max_queue) {
- l = find_last_bit(queued_in_use_bm, scsi_debug_max_queue);
- seq_printf(m, " %s BUSY: first,last bits set: %d,%d\n",
- "queued_in_use_bm", f, l);
+ int f, j, l;
+ struct sdebug_queue *sqp;
+
+ seq_printf(m, "scsi_debug adapter driver, version %s [%s]\n",
+ SDEBUG_VERSION, sdebug_version_date);
+ seq_printf(m, "num_tgts=%d, %ssize=%d MB, opts=0x%x, every_nth=%d\n",
+ sdebug_num_tgts, "shared (ram) ", sdebug_dev_size_mb,
+ sdebug_opts, sdebug_every_nth);
+ seq_printf(m, "delay=%d, ndelay=%d, max_luns=%d, sector_size=%d %s\n",
+ sdebug_jdelay, sdebug_ndelay, sdebug_max_luns,
+ sdebug_sector_size, "bytes");
+ seq_printf(m, "cylinders=%d, heads=%d, sectors=%d, command aborts=%d\n",
+ sdebug_cylinders_per, sdebug_heads, sdebug_sectors_per,
+ num_aborts);
+ seq_printf(m, "RESETs: device=%d, target=%d, bus=%d, host=%d\n",
+ num_dev_resets, num_target_resets, num_bus_resets,
+ num_host_resets);
+ seq_printf(m, "dix_reads=%d, dix_writes=%d, dif_errors=%d\n",
+ dix_reads, dix_writes, dif_errors);
+ seq_printf(m, "usec_in_jiffy=%lu, %s=%d, mq_active=%d\n",
+ TICK_NSEC / 1000, "statistics", sdebug_statistics,
+ sdebug_mq_active);
+ seq_printf(m, "cmnd_count=%d, completions=%d, %s=%d, a_tsf=%d\n",
+ atomic_read(&sdebug_cmnd_count),
+ atomic_read(&sdebug_completions),
+ "miss_cpus", atomic_read(&sdebug_miss_cpus),
+ atomic_read(&sdebug_a_tsf));
+
+ seq_printf(m, "submit_queues=%d\n", submit_queues);
+ for (j = 0, sqp = sdebug_q_arr; j < submit_queues; ++j, ++sqp) {
+ seq_printf(m, " queue %d:\n", j);
+ f = find_first_bit(sqp->in_use_bm, sdebug_max_queue);
+ if (f != sdebug_max_queue) {
+ l = find_last_bit(sqp->in_use_bm, sdebug_max_queue);
+ seq_printf(m, " in_use_bm BUSY: %s: %d,%d\n",
+ "first,last bits", f, l);
+ }
}
return 0;
}
static ssize_t delay_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_delay);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_jdelay);
}
-/* Returns -EBUSY if delay is being changed and commands are queued */
+/* Returns -EBUSY if jdelay is being changed and commands are queued. The unit
+ * of delay is jiffies.
+ */
static ssize_t delay_store(struct device_driver *ddp, const char *buf,
size_t count)
{
- int delay, res;
+ int jdelay, res;
- if ((count > 0) && (1 == sscanf(buf, "%d", &delay))) {
+ if (count > 0 && sscanf(buf, "%d", &jdelay) == 1) {
res = count;
- if (scsi_debug_delay != delay) {
- unsigned long iflags;
- int k;
-
- spin_lock_irqsave(&queued_arr_lock, iflags);
- k = find_first_bit(queued_in_use_bm,
- scsi_debug_max_queue);
- if (k != scsi_debug_max_queue)
- res = -EBUSY; /* have queued commands */
- else {
- scsi_debug_delay = delay;
- scsi_debug_ndelay = 0;
+ if (sdebug_jdelay != jdelay) {
+ int j, k;
+ struct sdebug_queue *sqp;
+
+ block_unblock_all_queues(true);
+ for (j = 0, sqp = sdebug_q_arr; j < submit_queues;
+ ++j, ++sqp) {
+ k = find_first_bit(sqp->in_use_bm,
+ sdebug_max_queue);
+ if (k != sdebug_max_queue) {
+ res = -EBUSY; /* queued commands */
+ break;
+ }
+ }
+ if (res > 0) {
+ /* make sure sdebug_defer instances get
+ * re-allocated for new delay variant */
+ free_all_queued();
+ sdebug_jdelay = jdelay;
+ sdebug_ndelay = 0;
}
- spin_unlock_irqrestore(&queued_arr_lock, iflags);
+ block_unblock_all_queues(false);
}
return res;
}
@@ -4263,31 +4320,41 @@ static DRIVER_ATTR_RW(delay);
static ssize_t ndelay_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_ndelay);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_ndelay);
}
/* Returns -EBUSY if ndelay is being changed and commands are queued */
-/* If > 0 and accepted then scsi_debug_delay is set to DELAY_OVERRIDDEN */
+/* If > 0 and accepted then sdebug_jdelay is set to JDELAY_OVERRIDDEN */
static ssize_t ndelay_store(struct device_driver *ddp, const char *buf,
- size_t count)
+ size_t count)
{
- unsigned long iflags;
- int ndelay, res, k;
+ int ndelay, res;
if ((count > 0) && (1 == sscanf(buf, "%d", &ndelay)) &&
- (ndelay >= 0) && (ndelay < 1000000000)) {
+ (ndelay >= 0) && (ndelay < (1000 * 1000 * 1000))) {
res = count;
- if (scsi_debug_ndelay != ndelay) {
- spin_lock_irqsave(&queued_arr_lock, iflags);
- k = find_first_bit(queued_in_use_bm,
- scsi_debug_max_queue);
- if (k != scsi_debug_max_queue)
- res = -EBUSY; /* have queued commands */
- else {
- scsi_debug_ndelay = ndelay;
- scsi_debug_delay = ndelay ? DELAY_OVERRIDDEN
- : DEF_DELAY;
+ if (sdebug_ndelay != ndelay) {
+ int j, k;
+ struct sdebug_queue *sqp;
+
+ block_unblock_all_queues(true);
+ for (j = 0, sqp = sdebug_q_arr; j < submit_queues;
+ ++j, ++sqp) {
+ k = find_first_bit(sqp->in_use_bm,
+ sdebug_max_queue);
+ if (k != sdebug_max_queue) {
+ res = -EBUSY; /* queued commands */
+ break;
+ }
+ }
+ if (res > 0) {
+ /* make sure sdebug_defer instances get
+ * re-allocated for new delay variant */
+ free_all_queued();
+ sdebug_ndelay = ndelay;
+ sdebug_jdelay = ndelay ? JDELAY_OVERRIDDEN
+ : DEF_JDELAY;
}
- spin_unlock_irqrestore(&queued_arr_lock, iflags);
+ block_unblock_all_queues(false);
}
return res;
}
@@ -4297,7 +4364,7 @@ static DRIVER_ATTR_RW(ndelay);
static ssize_t opts_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "0x%x\n", scsi_debug_opts);
+ return scnprintf(buf, PAGE_SIZE, "0x%x\n", sdebug_opts);
}
static ssize_t opts_store(struct device_driver *ddp, const char *buf,
@@ -4317,26 +4384,17 @@ static ssize_t opts_store(struct device_driver *ddp, const char *buf,
}
return -EINVAL;
opts_done:
- scsi_debug_opts = opts;
- if (SCSI_DEBUG_OPT_RECOVERED_ERR & opts)
- sdebug_any_injecting_opt = true;
- else if (SCSI_DEBUG_OPT_TRANSPORT_ERR & opts)
- sdebug_any_injecting_opt = true;
- else if (SCSI_DEBUG_OPT_DIF_ERR & opts)
- sdebug_any_injecting_opt = true;
- else if (SCSI_DEBUG_OPT_DIX_ERR & opts)
- sdebug_any_injecting_opt = true;
- else if (SCSI_DEBUG_OPT_SHORT_TRANSFER & opts)
- sdebug_any_injecting_opt = true;
- atomic_set(&sdebug_cmnd_count, 0);
- atomic_set(&sdebug_a_tsf, 0);
+ sdebug_opts = opts;
+ sdebug_verbose = !!(SDEBUG_OPT_NOISE & opts);
+ sdebug_any_injecting_opt = !!(SDEBUG_OPT_ALL_INJECTING & opts);
+ tweak_cmnd_count();
return count;
}
static DRIVER_ATTR_RW(opts);
static ssize_t ptype_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_ptype);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_ptype);
}
static ssize_t ptype_store(struct device_driver *ddp, const char *buf,
size_t count)
@@ -4344,7 +4402,7 @@ static ssize_t ptype_store(struct device_driver *ddp, const char *buf,
int n;
if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
- scsi_debug_ptype = n;
+ sdebug_ptype = n;
return count;
}
return -EINVAL;
@@ -4353,7 +4411,7 @@ static DRIVER_ATTR_RW(ptype);
static ssize_t dsense_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_dsense);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_dsense);
}
static ssize_t dsense_store(struct device_driver *ddp, const char *buf,
size_t count)
@@ -4361,7 +4419,7 @@ static ssize_t dsense_store(struct device_driver *ddp, const char *buf,
int n;
if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
- scsi_debug_dsense = n;
+ sdebug_dsense = n;
return count;
}
return -EINVAL;
@@ -4370,7 +4428,7 @@ static DRIVER_ATTR_RW(dsense);
static ssize_t fake_rw_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_fake_rw);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_fake_rw);
}
static ssize_t fake_rw_store(struct device_driver *ddp, const char *buf,
size_t count)
@@ -4379,11 +4437,11 @@ static ssize_t fake_rw_store(struct device_driver *ddp, const char *buf,
if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
n = (n > 0);
- scsi_debug_fake_rw = (scsi_debug_fake_rw > 0);
- if (scsi_debug_fake_rw != n) {
+ sdebug_fake_rw = (sdebug_fake_rw > 0);
+ if (sdebug_fake_rw != n) {
if ((0 == n) && (NULL == fake_storep)) {
unsigned long sz =
- (unsigned long)scsi_debug_dev_size_mb *
+ (unsigned long)sdebug_dev_size_mb *
1048576;
fake_storep = vmalloc(sz);
@@ -4393,7 +4451,7 @@ static ssize_t fake_rw_store(struct device_driver *ddp, const char *buf,
}
memset(fake_storep, 0, sz);
}
- scsi_debug_fake_rw = n;
+ sdebug_fake_rw = n;
}
return count;
}
@@ -4403,7 +4461,7 @@ static DRIVER_ATTR_RW(fake_rw);
static ssize_t no_lun_0_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_no_lun_0);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_no_lun_0);
}
static ssize_t no_lun_0_store(struct device_driver *ddp, const char *buf,
size_t count)
@@ -4411,7 +4469,7 @@ static ssize_t no_lun_0_store(struct device_driver *ddp, const char *buf,
int n;
if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
- scsi_debug_no_lun_0 = n;
+ sdebug_no_lun_0 = n;
return count;
}
return -EINVAL;
@@ -4420,7 +4478,7 @@ static DRIVER_ATTR_RW(no_lun_0);
static ssize_t num_tgts_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_num_tgts);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_num_tgts);
}
static ssize_t num_tgts_store(struct device_driver *ddp, const char *buf,
size_t count)
@@ -4428,7 +4486,7 @@ static ssize_t num_tgts_store(struct device_driver *ddp, const char *buf,
int n;
if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
- scsi_debug_num_tgts = n;
+ sdebug_num_tgts = n;
sdebug_max_tgts_luns();
return count;
}
@@ -4438,19 +4496,19 @@ static DRIVER_ATTR_RW(num_tgts);
static ssize_t dev_size_mb_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_dev_size_mb);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_dev_size_mb);
}
static DRIVER_ATTR_RO(dev_size_mb);
static ssize_t num_parts_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_num_parts);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_num_parts);
}
static DRIVER_ATTR_RO(num_parts);
static ssize_t every_nth_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_every_nth);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_every_nth);
}
static ssize_t every_nth_store(struct device_driver *ddp, const char *buf,
size_t count)
@@ -4458,8 +4516,12 @@ static ssize_t every_nth_store(struct device_driver *ddp, const char *buf,
int nth;
if ((count > 0) && (1 == sscanf(buf, "%d", &nth))) {
- scsi_debug_every_nth = nth;
- atomic_set(&sdebug_cmnd_count, 0);
+ sdebug_every_nth = nth;
+ if (nth && !sdebug_statistics) {
+ pr_info("every_nth needs statistics=1, set it\n");
+ sdebug_statistics = true;
+ }
+ tweak_cmnd_count();
return count;
}
return -EINVAL;
@@ -4468,7 +4530,7 @@ static DRIVER_ATTR_RW(every_nth);
static ssize_t max_luns_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_max_luns);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_max_luns);
}
static ssize_t max_luns_store(struct device_driver *ddp, const char *buf,
size_t count)
@@ -4477,10 +4539,14 @@ static ssize_t max_luns_store(struct device_driver *ddp, const char *buf,
bool changed;
if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
- changed = (scsi_debug_max_luns != n);
- scsi_debug_max_luns = n;
+ if (n > 256) {
+ pr_warn("max_luns can be no more than 256\n");
+ return -EINVAL;
+ }
+ changed = (sdebug_max_luns != n);
+ sdebug_max_luns = n;
sdebug_max_tgts_luns();
- if (changed && (scsi_debug_scsi_level >= 5)) { /* >= SPC-3 */
+ if (changed && (sdebug_scsi_level >= 5)) { /* >= SPC-3 */
struct sdebug_host_info *sdhp;
struct sdebug_dev_info *dp;
@@ -4503,28 +4569,34 @@ static DRIVER_ATTR_RW(max_luns);
static ssize_t max_queue_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_max_queue);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_max_queue);
}
/* N.B. max_queue can be changed while there are queued commands. In flight
* commands beyond the new max_queue will be completed. */
static ssize_t max_queue_store(struct device_driver *ddp, const char *buf,
size_t count)
{
- unsigned long iflags;
- int n, k;
+ int j, n, k, a;
+ struct sdebug_queue *sqp;
if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n > 0) &&
- (n <= SCSI_DEBUG_CANQUEUE)) {
- spin_lock_irqsave(&queued_arr_lock, iflags);
- k = find_last_bit(queued_in_use_bm, SCSI_DEBUG_CANQUEUE);
- scsi_debug_max_queue = n;
- if (SCSI_DEBUG_CANQUEUE == k)
+ (n <= SDEBUG_CANQUEUE)) {
+ block_unblock_all_queues(true);
+ k = 0;
+ for (j = 0, sqp = sdebug_q_arr; j < submit_queues;
+ ++j, ++sqp) {
+ a = find_last_bit(sqp->in_use_bm, SDEBUG_CANQUEUE);
+ if (a > k)
+ k = a;
+ }
+ sdebug_max_queue = n;
+ if (k == SDEBUG_CANQUEUE)
atomic_set(&retired_max_queue, 0);
else if (k >= n)
atomic_set(&retired_max_queue, k + 1);
else
atomic_set(&retired_max_queue, 0);
- spin_unlock_irqrestore(&queued_arr_lock, iflags);
+ block_unblock_all_queues(false);
return count;
}
return -EINVAL;
@@ -4533,19 +4605,19 @@ static DRIVER_ATTR_RW(max_queue);
static ssize_t no_uld_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_no_uld);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_no_uld);
}
static DRIVER_ATTR_RO(no_uld);
static ssize_t scsi_level_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_scsi_level);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_scsi_level);
}
static DRIVER_ATTR_RO(scsi_level);
static ssize_t virtual_gb_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_virtual_gb);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_virtual_gb);
}
static ssize_t virtual_gb_store(struct device_driver *ddp, const char *buf,
size_t count)
@@ -4554,8 +4626,8 @@ static ssize_t virtual_gb_store(struct device_driver *ddp, const char *buf,
bool changed;
if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
- changed = (scsi_debug_virtual_gb != n);
- scsi_debug_virtual_gb = n;
+ changed = (sdebug_virtual_gb != n);
+ sdebug_virtual_gb = n;
sdebug_capacity = get_sdebug_capacity();
if (changed) {
struct sdebug_host_info *sdhp;
@@ -4580,9 +4652,12 @@ static DRIVER_ATTR_RW(virtual_gb);
static ssize_t add_host_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_add_host);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_add_host);
}
+static int sdebug_add_adapter(void);
+static void sdebug_remove_adapter(void);
+
static ssize_t add_host_store(struct device_driver *ddp, const char *buf,
size_t count)
{
@@ -4605,7 +4680,7 @@ static DRIVER_ATTR_RW(add_host);
static ssize_t vpd_use_hostno_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_vpd_use_hostno);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_vpd_use_hostno);
}
static ssize_t vpd_use_hostno_store(struct device_driver *ddp, const char *buf,
size_t count)
@@ -4613,40 +4688,68 @@ static ssize_t vpd_use_hostno_store(struct device_driver *ddp, const char *buf,
int n;
if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
- scsi_debug_vpd_use_hostno = n;
+ sdebug_vpd_use_hostno = n;
return count;
}
return -EINVAL;
}
static DRIVER_ATTR_RW(vpd_use_hostno);
+static ssize_t statistics_show(struct device_driver *ddp, char *buf)
+{
+ return scnprintf(buf, PAGE_SIZE, "%d\n", (int)sdebug_statistics);
+}
+static ssize_t statistics_store(struct device_driver *ddp, const char *buf,
+ size_t count)
+{
+ int n;
+
+ if ((count > 0) && (sscanf(buf, "%d", &n) == 1) && (n >= 0)) {
+ if (n > 0)
+ sdebug_statistics = true;
+ else {
+ clear_queue_stats();
+ sdebug_statistics = false;
+ }
+ return count;
+ }
+ return -EINVAL;
+}
+static DRIVER_ATTR_RW(statistics);
+
static ssize_t sector_size_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%u\n", scsi_debug_sector_size);
+ return scnprintf(buf, PAGE_SIZE, "%u\n", sdebug_sector_size);
}
static DRIVER_ATTR_RO(sector_size);
+static ssize_t submit_queues_show(struct device_driver *ddp, char *buf)
+{
+ return scnprintf(buf, PAGE_SIZE, "%d\n", submit_queues);
+}
+static DRIVER_ATTR_RO(submit_queues);
+
static ssize_t dix_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_dix);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_dix);
}
static DRIVER_ATTR_RO(dix);
static ssize_t dif_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_dif);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_dif);
}
static DRIVER_ATTR_RO(dif);
static ssize_t guard_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%u\n", scsi_debug_guard);
+ return scnprintf(buf, PAGE_SIZE, "%u\n", sdebug_guard);
}
static DRIVER_ATTR_RO(guard);
static ssize_t ato_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_ato);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_ato);
}
static DRIVER_ATTR_RO(ato);
@@ -4669,7 +4772,7 @@ static DRIVER_ATTR_RO(map);
static ssize_t removable_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_removable ? 1 : 0);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_removable ? 1 : 0);
}
static ssize_t removable_store(struct device_driver *ddp, const char *buf,
size_t count)
@@ -4677,7 +4780,7 @@ static ssize_t removable_store(struct device_driver *ddp, const char *buf,
int n;
if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
- scsi_debug_removable = (n > 0);
+ sdebug_removable = (n > 0);
return count;
}
return -EINVAL;
@@ -4686,32 +4789,17 @@ static DRIVER_ATTR_RW(removable);
static ssize_t host_lock_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%d\n", !!scsi_debug_host_lock);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", !!sdebug_host_lock);
}
-/* Returns -EBUSY if host_lock is being changed and commands are queued */
+/* N.B. sdebug_host_lock does nothing, kept for backward compatibility */
static ssize_t host_lock_store(struct device_driver *ddp, const char *buf,
size_t count)
{
- int n, res;
+ int n;
if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
- bool new_host_lock = (n > 0);
-
- res = count;
- if (new_host_lock != scsi_debug_host_lock) {
- unsigned long iflags;
- int k;
-
- spin_lock_irqsave(&queued_arr_lock, iflags);
- k = find_first_bit(queued_in_use_bm,
- scsi_debug_max_queue);
- if (k != scsi_debug_max_queue)
- res = -EBUSY; /* have queued commands */
- else
- scsi_debug_host_lock = new_host_lock;
- spin_unlock_irqrestore(&queued_arr_lock, iflags);
- }
- return res;
+ sdebug_host_lock = (n > 0);
+ return count;
}
return -EINVAL;
}
@@ -4719,7 +4807,7 @@ static DRIVER_ATTR_RW(host_lock);
static ssize_t strict_show(struct device_driver *ddp, char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%d\n", !!scsi_debug_strict);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", !!sdebug_strict);
}
static ssize_t strict_store(struct device_driver *ddp, const char *buf,
size_t count)
@@ -4727,13 +4815,19 @@ static ssize_t strict_store(struct device_driver *ddp, const char *buf,
int n;
if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
- scsi_debug_strict = (n > 0);
+ sdebug_strict = (n > 0);
return count;
}
return -EINVAL;
}
static DRIVER_ATTR_RW(strict);
+static ssize_t uuid_ctl_show(struct device_driver *ddp, char *buf)
+{
+ return scnprintf(buf, PAGE_SIZE, "%d\n", !!sdebug_uuid_ctl);
+}
+static DRIVER_ATTR_RO(uuid_ctl);
+
/* Note: The following array creates attribute files in the
/sys/bus/pseudo/drivers/scsi_debug directory. The advantage of these
@@ -4761,6 +4855,8 @@ static struct attribute *sdebug_drv_attrs[] = {
&driver_attr_add_host.attr,
&driver_attr_vpd_use_hostno.attr,
&driver_attr_sector_size.attr,
+ &driver_attr_statistics.attr,
+ &driver_attr_submit_queues.attr,
&driver_attr_dix.attr,
&driver_attr_dif.attr,
&driver_attr_guard.attr,
@@ -4770,6 +4866,7 @@ static struct attribute *sdebug_drv_attrs[] = {
&driver_attr_host_lock.attr,
&driver_attr_ndelay.attr,
&driver_attr_strict.attr,
+ &driver_attr_uuid_ctl.attr,
NULL,
};
ATTRIBUTE_GROUPS(sdebug_drv);
@@ -4783,33 +4880,33 @@ static int __init scsi_debug_init(void)
int k;
int ret;
- atomic_set(&sdebug_cmnd_count, 0);
- atomic_set(&sdebug_completions, 0);
atomic_set(&retired_max_queue, 0);
- if (scsi_debug_ndelay >= 1000000000) {
+ if (sdebug_ndelay >= 1000 * 1000 * 1000) {
pr_warn("ndelay must be less than 1 second, ignored\n");
- scsi_debug_ndelay = 0;
- } else if (scsi_debug_ndelay > 0)
- scsi_debug_delay = DELAY_OVERRIDDEN;
+ sdebug_ndelay = 0;
+ } else if (sdebug_ndelay > 0)
+ sdebug_jdelay = JDELAY_OVERRIDDEN;
- switch (scsi_debug_sector_size) {
+ switch (sdebug_sector_size) {
case 512:
case 1024:
case 2048:
case 4096:
break;
default:
- pr_err("invalid sector_size %d\n", scsi_debug_sector_size);
+ pr_err("invalid sector_size %d\n", sdebug_sector_size);
return -EINVAL;
}
- switch (scsi_debug_dif) {
+ switch (sdebug_dif) {
case SD_DIF_TYPE0_PROTECTION:
+ break;
case SD_DIF_TYPE1_PROTECTION:
case SD_DIF_TYPE2_PROTECTION:
case SD_DIF_TYPE3_PROTECTION:
+ have_dif_prot = true;
break;
default:
@@ -4817,39 +4914,53 @@ static int __init scsi_debug_init(void)
return -EINVAL;
}
- if (scsi_debug_guard > 1) {
+ if (sdebug_guard > 1) {
pr_err("guard must be 0 or 1\n");
return -EINVAL;
}
- if (scsi_debug_ato > 1) {
+ if (sdebug_ato > 1) {
pr_err("ato must be 0 or 1\n");
return -EINVAL;
}
- if (scsi_debug_physblk_exp > 15) {
- pr_err("invalid physblk_exp %u\n", scsi_debug_physblk_exp);
+ if (sdebug_physblk_exp > 15) {
+ pr_err("invalid physblk_exp %u\n", sdebug_physblk_exp);
return -EINVAL;
}
+ if (sdebug_max_luns > 256) {
+ pr_warn("max_luns can be no more than 256, use default\n");
+ sdebug_max_luns = DEF_MAX_LUNS;
+ }
- if (scsi_debug_lowest_aligned > 0x3fff) {
- pr_err("lowest_aligned too big: %u\n",
- scsi_debug_lowest_aligned);
+ if (sdebug_lowest_aligned > 0x3fff) {
+ pr_err("lowest_aligned too big: %u\n", sdebug_lowest_aligned);
return -EINVAL;
}
- if (scsi_debug_dev_size_mb < 1)
- scsi_debug_dev_size_mb = 1; /* force minimum 1 MB ramdisk */
- sz = (unsigned long)scsi_debug_dev_size_mb * 1048576;
- sdebug_store_sectors = sz / scsi_debug_sector_size;
+ if (submit_queues < 1) {
+ pr_err("submit_queues must be 1 or more\n");
+ return -EINVAL;
+ }
+ sdebug_q_arr = kcalloc(submit_queues, sizeof(struct sdebug_queue),
+ GFP_KERNEL);
+ if (sdebug_q_arr == NULL)
+ return -ENOMEM;
+ for (k = 0; k < submit_queues; ++k)
+ spin_lock_init(&sdebug_q_arr[k].qc_lock);
+
+ if (sdebug_dev_size_mb < 1)
+ sdebug_dev_size_mb = 1; /* force minimum 1 MB ramdisk */
+ sz = (unsigned long)sdebug_dev_size_mb * 1048576;
+ sdebug_store_sectors = sz / sdebug_sector_size;
sdebug_capacity = get_sdebug_capacity();
/* play around with geometry, don't waste too much on track 0 */
sdebug_heads = 8;
sdebug_sectors_per = 32;
- if (scsi_debug_dev_size_mb >= 256)
+ if (sdebug_dev_size_mb >= 256)
sdebug_heads = 64;
- else if (scsi_debug_dev_size_mb >= 16)
+ else if (sdebug_dev_size_mb >= 16)
sdebug_heads = 32;
sdebug_cylinders_per = (unsigned long)sdebug_capacity /
(sdebug_sectors_per * sdebug_heads);
@@ -4861,18 +4972,19 @@ static int __init scsi_debug_init(void)
(sdebug_sectors_per * sdebug_heads);
}
- if (0 == scsi_debug_fake_rw) {
+ if (sdebug_fake_rw == 0) {
fake_storep = vmalloc(sz);
if (NULL == fake_storep) {
pr_err("out of memory, 1\n");
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto free_q_arr;
}
memset(fake_storep, 0, sz);
- if (scsi_debug_num_parts > 0)
+ if (sdebug_num_parts > 0)
sdebug_build_parts(fake_storep, sz);
}
- if (scsi_debug_dix) {
+ if (sdebug_dix) {
int dif_size;
dif_size = sdebug_store_sectors * sizeof(struct sd_dif_tuple);
@@ -4891,20 +5003,21 @@ static int __init scsi_debug_init(void)
/* Logical Block Provisioning */
if (scsi_debug_lbp()) {
- scsi_debug_unmap_max_blocks =
- clamp(scsi_debug_unmap_max_blocks, 0U, 0xffffffffU);
+ sdebug_unmap_max_blocks =
+ clamp(sdebug_unmap_max_blocks, 0U, 0xffffffffU);
- scsi_debug_unmap_max_desc =
- clamp(scsi_debug_unmap_max_desc, 0U, 256U);
+ sdebug_unmap_max_desc =
+ clamp(sdebug_unmap_max_desc, 0U, 256U);
- scsi_debug_unmap_granularity =
- clamp(scsi_debug_unmap_granularity, 1U, 0xffffffffU);
+ sdebug_unmap_granularity =
+ clamp(sdebug_unmap_granularity, 1U, 0xffffffffU);
- if (scsi_debug_unmap_alignment &&
- scsi_debug_unmap_granularity <=
- scsi_debug_unmap_alignment) {
+ if (sdebug_unmap_alignment &&
+ sdebug_unmap_granularity <=
+ sdebug_unmap_alignment) {
pr_err("ERR: unmap_granularity <= unmap_alignment\n");
- return -EINVAL;
+ ret = -EINVAL;
+ goto free_vm;
}
map_size = lba_to_map_index(sdebug_store_sectors - 1) + 1;
@@ -4921,7 +5034,7 @@ static int __init scsi_debug_init(void)
bitmap_zero(map_storep, map_size);
/* Map first 1KB for partition table */
- if (scsi_debug_num_parts)
+ if (sdebug_num_parts)
map_region(0, 2);
}
@@ -4942,8 +5055,8 @@ static int __init scsi_debug_init(void)
goto bus_unreg;
}
- host_to_add = scsi_debug_add_host;
- scsi_debug_add_host = 0;
+ host_to_add = sdebug_add_host;
+ sdebug_add_host = 0;
for (k = 0; k < host_to_add; k++) {
if (sdebug_add_adapter()) {
@@ -4952,8 +5065,8 @@ static int __init scsi_debug_init(void)
}
}
- if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
- pr_info("built %d host(s)\n", scsi_debug_add_host);
+ if (sdebug_verbose)
+ pr_info("built %d host(s)\n", sdebug_add_host);
return 0;
@@ -4965,13 +5078,14 @@ free_vm:
vfree(map_storep);
vfree(dif_storep);
vfree(fake_storep);
-
+free_q_arr:
+ kfree(sdebug_q_arr);
return ret;
}
static void __exit scsi_debug_exit(void)
{
- int k = scsi_debug_add_host;
+ int k = sdebug_add_host;
stop_all_queued();
free_all_queued();
@@ -4983,6 +5097,7 @@ static void __exit scsi_debug_exit(void)
vfree(dif_storep);
vfree(fake_storep);
+ kfree(sdebug_q_arr);
}
device_initcall(scsi_debug_init);
@@ -5011,7 +5126,7 @@ static int sdebug_add_adapter(void)
INIT_LIST_HEAD(&sdbg_host->dev_info_list);
- devs_per_host = scsi_debug_num_tgts * scsi_debug_max_luns;
+ devs_per_host = sdebug_num_tgts * sdebug_max_luns;
for (k = 0; k < devs_per_host; k++) {
sdbg_devinfo = sdebug_device_create(sdbg_host, GFP_KERNEL);
if (!sdbg_devinfo) {
@@ -5028,14 +5143,14 @@ static int sdebug_add_adapter(void)
sdbg_host->dev.bus = &pseudo_lld_bus;
sdbg_host->dev.parent = pseudo_primary;
sdbg_host->dev.release = &sdebug_release_adapter;
- dev_set_name(&sdbg_host->dev, "adapter%d", scsi_debug_add_host);
+ dev_set_name(&sdbg_host->dev, "adapter%d", sdebug_add_host);
error = device_register(&sdbg_host->dev);
if (error)
goto clean;
- ++scsi_debug_add_host;
+ ++sdebug_add_host;
return error;
clean:
@@ -5064,78 +5179,54 @@ static void sdebug_remove_adapter(void)
if (!sdbg_host)
return;
- device_unregister(&sdbg_host->dev);
- --scsi_debug_add_host;
+ device_unregister(&sdbg_host->dev);
+ --sdebug_add_host;
}
-static int
-sdebug_change_qdepth(struct scsi_device *sdev, int qdepth)
+static int sdebug_change_qdepth(struct scsi_device *sdev, int qdepth)
{
int num_in_q = 0;
- unsigned long iflags;
struct sdebug_dev_info *devip;
- spin_lock_irqsave(&queued_arr_lock, iflags);
+ block_unblock_all_queues(true);
devip = (struct sdebug_dev_info *)sdev->hostdata;
if (NULL == devip) {
- spin_unlock_irqrestore(&queued_arr_lock, iflags);
+ block_unblock_all_queues(false);
return -ENODEV;
}
num_in_q = atomic_read(&devip->num_in_q);
- spin_unlock_irqrestore(&queued_arr_lock, iflags);
if (qdepth < 1)
qdepth = 1;
- /* allow to exceed max host queued_arr elements for testing */
- if (qdepth > SCSI_DEBUG_CANQUEUE + 10)
- qdepth = SCSI_DEBUG_CANQUEUE + 10;
+ /* allow to exceed max host qc_arr elements for testing */
+ if (qdepth > SDEBUG_CANQUEUE + 10)
+ qdepth = SDEBUG_CANQUEUE + 10;
scsi_change_queue_depth(sdev, qdepth);
- if (SCSI_DEBUG_OPT_Q_NOISE & scsi_debug_opts) {
- sdev_printk(KERN_INFO, sdev,
- "%s: qdepth=%d, num_in_q=%d\n",
+ if (SDEBUG_OPT_Q_NOISE & sdebug_opts) {
+ sdev_printk(KERN_INFO, sdev, "%s: qdepth=%d, num_in_q=%d\n",
__func__, qdepth, num_in_q);
}
+ block_unblock_all_queues(false);
return sdev->queue_depth;
}
-static int
-check_inject(struct scsi_cmnd *scp)
+static bool fake_timeout(struct scsi_cmnd *scp)
{
- struct sdebug_scmd_extra_t *ep = scsi_cmd_priv(scp);
-
- memset(ep, 0, sizeof(struct sdebug_scmd_extra_t));
-
- if (atomic_inc_return(&sdebug_cmnd_count) >=
- abs(scsi_debug_every_nth)) {
- atomic_set(&sdebug_cmnd_count, 0);
- if (scsi_debug_every_nth < -1)
- scsi_debug_every_nth = -1;
- if (SCSI_DEBUG_OPT_TIMEOUT & scsi_debug_opts)
- return 1; /* ignore command causing timeout */
- else if (SCSI_DEBUG_OPT_MAC_TIMEOUT & scsi_debug_opts &&
+ if (0 == (atomic_read(&sdebug_cmnd_count) % abs(sdebug_every_nth))) {
+ if (sdebug_every_nth < -1)
+ sdebug_every_nth = -1;
+ if (SDEBUG_OPT_TIMEOUT & sdebug_opts)
+ return true; /* ignore command causing timeout */
+ else if (SDEBUG_OPT_MAC_TIMEOUT & sdebug_opts &&
scsi_medium_access_command(scp))
- return 1; /* time out reads and writes */
- if (sdebug_any_injecting_opt) {
- int opts = scsi_debug_opts;
-
- if (SCSI_DEBUG_OPT_RECOVERED_ERR & opts)
- ep->inj_recovered = true;
- else if (SCSI_DEBUG_OPT_TRANSPORT_ERR & opts)
- ep->inj_transport = true;
- else if (SCSI_DEBUG_OPT_DIF_ERR & opts)
- ep->inj_dif = true;
- else if (SCSI_DEBUG_OPT_DIX_ERR & opts)
- ep->inj_dix = true;
- else if (SCSI_DEBUG_OPT_SHORT_TRANSFER & opts)
- ep->inj_short = true;
- }
+ return true; /* time out reads and writes */
}
- return 0;
+ return false;
}
-static int
-scsi_debug_queuecommand(struct scsi_cmnd *scp)
+static int scsi_debug_queuecommand(struct Scsi_Host *shost,
+ struct scsi_cmnd *scp)
{
u8 sdeb_i;
struct scsi_device *sdp = scp->device;
@@ -5146,15 +5237,16 @@ scsi_debug_queuecommand(struct scsi_cmnd *scp)
int (*r_pfp)(struct scsi_cmnd *, struct sdebug_dev_info *);
int k, na;
int errsts = 0;
- int errsts_no_connect = DID_NO_CONNECT << 16;
u32 flags;
u16 sa;
u8 opcode = cmd[0];
bool has_wlun_rl;
- bool debug = !!(SCSI_DEBUG_OPT_NOISE & scsi_debug_opts);
scsi_set_resid(scp, 0);
- if (debug && !(SCSI_DEBUG_OPT_NO_CDB_NOISE & scsi_debug_opts)) {
+ if (sdebug_statistics)
+ atomic_inc(&sdebug_cmnd_count);
+ if (unlikely(sdebug_verbose &&
+ !(SDEBUG_OPT_NO_CDB_NOISE & sdebug_opts))) {
char b[120];
int n, len, sb;
@@ -5167,19 +5259,25 @@ scsi_debug_queuecommand(struct scsi_cmnd *scp)
n += scnprintf(b + n, sb - n, "%02x ",
(u32)cmd[k]);
}
- sdev_printk(KERN_INFO, sdp, "%s: cmd %s\n", my_name, b);
+ if (sdebug_mq_active)
+ sdev_printk(KERN_INFO, sdp, "%s: tag=%u, cmd %s\n",
+ my_name, blk_mq_unique_tag(scp->request),
+ b);
+ else
+ sdev_printk(KERN_INFO, sdp, "%s: cmd %s\n", my_name,
+ b);
}
has_wlun_rl = (sdp->lun == SCSI_W_LUN_REPORT_LUNS);
- if ((sdp->lun >= scsi_debug_max_luns) && !has_wlun_rl)
- return schedule_resp(scp, NULL, errsts_no_connect, 0);
+ if (unlikely((sdp->lun >= sdebug_max_luns) && !has_wlun_rl))
+ goto err_out;
sdeb_i = opcode_ind_arr[opcode]; /* fully mapped */
oip = &opcode_info_arr[sdeb_i]; /* safe if table consistent */
devip = (struct sdebug_dev_info *)sdp->hostdata;
- if (!devip) {
- devip = devInfoReg(sdp);
+ if (unlikely(!devip)) {
+ devip = find_build_dev_info(sdp);
if (NULL == devip)
- return schedule_resp(scp, NULL, errsts_no_connect, 0);
+ goto err_out;
}
na = oip->num_attached;
r_pfp = oip->pfp;
@@ -5211,18 +5309,18 @@ scsi_debug_queuecommand(struct scsi_cmnd *scp)
}
} /* else (when na==0) we assume the oip is a match */
flags = oip->flags;
- if (F_INV_OP & flags) {
+ if (unlikely(F_INV_OP & flags)) {
mk_sense_invalid_opcode(scp);
goto check_cond;
}
- if (has_wlun_rl && !(F_RL_WLUN_OK & flags)) {
- if (debug)
- sdev_printk(KERN_INFO, sdp, "scsi_debug: Opcode: "
- "0x%x not supported for wlun\n", opcode);
+ if (unlikely(has_wlun_rl && !(F_RL_WLUN_OK & flags))) {
+ if (sdebug_verbose)
+ sdev_printk(KERN_INFO, sdp, "%s: Opcode 0x%x not%s\n",
+ my_name, opcode, " supported for wlun");
mk_sense_invalid_opcode(scp);
goto check_cond;
}
- if (scsi_debug_strict) { /* check cdb against mask */
+ if (unlikely(sdebug_strict)) { /* check cdb against mask */
u8 rem;
int j;
@@ -5238,52 +5336,40 @@ scsi_debug_queuecommand(struct scsi_cmnd *scp)
}
}
}
- if (!(F_SKIP_UA & flags) &&
- SDEBUG_NUM_UAS != find_first_bit(devip->uas_bm, SDEBUG_NUM_UAS)) {
- errsts = check_readiness(scp, UAS_ONLY, devip);
+ if (unlikely(!(F_SKIP_UA & flags) &&
+ find_first_bit(devip->uas_bm,
+ SDEBUG_NUM_UAS) != SDEBUG_NUM_UAS)) {
+ errsts = make_ua(scp, devip);
if (errsts)
goto check_cond;
}
- if ((F_M_ACCESS & flags) && devip->stopped) {
+ if (unlikely((F_M_ACCESS & flags) && atomic_read(&devip->stopped))) {
mk_sense_buffer(scp, NOT_READY, LOGICAL_UNIT_NOT_READY, 0x2);
- if (debug)
+ if (sdebug_verbose)
sdev_printk(KERN_INFO, sdp, "%s reports: Not ready: "
"%s\n", my_name, "initializing command "
"required");
errsts = check_condition_result;
goto fini;
}
- if (scsi_debug_fake_rw && (F_FAKE_RW & flags))
+ if (sdebug_fake_rw && (F_FAKE_RW & flags))
goto fini;
- if (scsi_debug_every_nth) {
- if (check_inject(scp))
+ if (unlikely(sdebug_every_nth)) {
+ if (fake_timeout(scp))
return 0; /* ignore command: make trouble */
}
- if (oip->pfp) /* if this command has a resp_* function, call it */
- errsts = oip->pfp(scp, devip);
+ if (likely(oip->pfp))
+ errsts = oip->pfp(scp, devip); /* calls a resp_* function */
else if (r_pfp) /* if leaf function ptr NULL, try the root's */
errsts = r_pfp(scp, devip);
fini:
return schedule_resp(scp, devip, errsts,
- ((F_DELAY_OVERR & flags) ? 0 : scsi_debug_delay));
+ ((F_DELAY_OVERR & flags) ? 0 : sdebug_jdelay));
check_cond:
return schedule_resp(scp, devip, check_condition_result, 0);
-}
-
-static int
-sdebug_queuecommand_lock_or_not(struct Scsi_Host *shost, struct scsi_cmnd *cmd)
-{
- if (scsi_debug_host_lock) {
- unsigned long iflags;
- int rc;
-
- spin_lock_irqsave(shost->host_lock, iflags);
- rc = scsi_debug_queuecommand(cmd);
- spin_unlock_irqrestore(shost->host_lock, iflags);
- return rc;
- } else
- return scsi_debug_queuecommand(cmd);
+err_out:
+ return schedule_resp(scp, NULL, DID_NO_CONNECT << 16, 0);
}
static struct scsi_host_template sdebug_driver_template = {
@@ -5296,36 +5382,34 @@ static struct scsi_host_template sdebug_driver_template = {
.slave_configure = scsi_debug_slave_configure,
.slave_destroy = scsi_debug_slave_destroy,
.ioctl = scsi_debug_ioctl,
- .queuecommand = sdebug_queuecommand_lock_or_not,
+ .queuecommand = scsi_debug_queuecommand,
.change_queue_depth = sdebug_change_qdepth,
.eh_abort_handler = scsi_debug_abort,
.eh_device_reset_handler = scsi_debug_device_reset,
.eh_target_reset_handler = scsi_debug_target_reset,
.eh_bus_reset_handler = scsi_debug_bus_reset,
.eh_host_reset_handler = scsi_debug_host_reset,
- .can_queue = SCSI_DEBUG_CANQUEUE,
+ .can_queue = SDEBUG_CANQUEUE,
.this_id = 7,
- .sg_tablesize = SCSI_MAX_SG_CHAIN_SEGMENTS,
+ .sg_tablesize = SG_MAX_SEGMENTS,
.cmd_per_lun = DEF_CMD_PER_LUN,
.max_sectors = -1U,
.use_clustering = DISABLE_CLUSTERING,
.module = THIS_MODULE,
.track_queue_depth = 1,
- .cmd_size = sizeof(struct sdebug_scmd_extra_t),
};
static int sdebug_driver_probe(struct device * dev)
{
int error = 0;
- int opts;
struct sdebug_host_info *sdbg_host;
struct Scsi_Host *hpnt;
- int host_prot;
+ int hprot;
sdbg_host = to_sdebug_host(dev);
- sdebug_driver_template.can_queue = scsi_debug_max_queue;
- if (scsi_debug_clustering)
+ sdebug_driver_template.can_queue = sdebug_max_queue;
+ if (sdebug_clustering)
sdebug_driver_template.use_clustering = ENABLE_CLUSTERING;
hpnt = scsi_host_alloc(&sdebug_driver_template, sizeof(sdbg_host));
if (NULL == hpnt) {
@@ -5333,72 +5417,75 @@ static int sdebug_driver_probe(struct device * dev)
error = -ENODEV;
return error;
}
+ if (submit_queues > nr_cpu_ids) {
+ pr_warn("%s: trim submit_queues (was %d) to nr_cpu_ids=%d\n",
+ my_name, submit_queues, nr_cpu_ids);
+ submit_queues = nr_cpu_ids;
+ }
+ /* Decide whether to tell scsi subsystem that we want mq */
+ /* Following should give the same answer for each host */
+ sdebug_mq_active = shost_use_blk_mq(hpnt) && (submit_queues > 1);
+ if (sdebug_mq_active)
+ hpnt->nr_hw_queues = submit_queues;
sdbg_host->shost = hpnt;
*((struct sdebug_host_info **)hpnt->hostdata) = sdbg_host;
- if ((hpnt->this_id >= 0) && (scsi_debug_num_tgts > hpnt->this_id))
- hpnt->max_id = scsi_debug_num_tgts + 1;
+ if ((hpnt->this_id >= 0) && (sdebug_num_tgts > hpnt->this_id))
+ hpnt->max_id = sdebug_num_tgts + 1;
else
- hpnt->max_id = scsi_debug_num_tgts;
- /* = scsi_debug_max_luns; */
+ hpnt->max_id = sdebug_num_tgts;
+ /* = sdebug_max_luns; */
hpnt->max_lun = SCSI_W_LUN_REPORT_LUNS + 1;
- host_prot = 0;
+ hprot = 0;
- switch (scsi_debug_dif) {
+ switch (sdebug_dif) {
case SD_DIF_TYPE1_PROTECTION:
- host_prot = SHOST_DIF_TYPE1_PROTECTION;
- if (scsi_debug_dix)
- host_prot |= SHOST_DIX_TYPE1_PROTECTION;
+ hprot = SHOST_DIF_TYPE1_PROTECTION;
+ if (sdebug_dix)
+ hprot |= SHOST_DIX_TYPE1_PROTECTION;
break;
case SD_DIF_TYPE2_PROTECTION:
- host_prot = SHOST_DIF_TYPE2_PROTECTION;
- if (scsi_debug_dix)
- host_prot |= SHOST_DIX_TYPE2_PROTECTION;
+ hprot = SHOST_DIF_TYPE2_PROTECTION;
+ if (sdebug_dix)
+ hprot |= SHOST_DIX_TYPE2_PROTECTION;
break;
case SD_DIF_TYPE3_PROTECTION:
- host_prot = SHOST_DIF_TYPE3_PROTECTION;
- if (scsi_debug_dix)
- host_prot |= SHOST_DIX_TYPE3_PROTECTION;
+ hprot = SHOST_DIF_TYPE3_PROTECTION;
+ if (sdebug_dix)
+ hprot |= SHOST_DIX_TYPE3_PROTECTION;
break;
default:
- if (scsi_debug_dix)
- host_prot |= SHOST_DIX_TYPE0_PROTECTION;
+ if (sdebug_dix)
+ hprot |= SHOST_DIX_TYPE0_PROTECTION;
break;
}
- scsi_host_set_prot(hpnt, host_prot);
+ scsi_host_set_prot(hpnt, hprot);
- pr_info("host protection%s%s%s%s%s%s%s\n",
- (host_prot & SHOST_DIF_TYPE1_PROTECTION) ? " DIF1" : "",
- (host_prot & SHOST_DIF_TYPE2_PROTECTION) ? " DIF2" : "",
- (host_prot & SHOST_DIF_TYPE3_PROTECTION) ? " DIF3" : "",
- (host_prot & SHOST_DIX_TYPE0_PROTECTION) ? " DIX0" : "",
- (host_prot & SHOST_DIX_TYPE1_PROTECTION) ? " DIX1" : "",
- (host_prot & SHOST_DIX_TYPE2_PROTECTION) ? " DIX2" : "",
- (host_prot & SHOST_DIX_TYPE3_PROTECTION) ? " DIX3" : "");
+ if (have_dif_prot || sdebug_dix)
+ pr_info("host protection%s%s%s%s%s%s%s\n",
+ (hprot & SHOST_DIF_TYPE1_PROTECTION) ? " DIF1" : "",
+ (hprot & SHOST_DIF_TYPE2_PROTECTION) ? " DIF2" : "",
+ (hprot & SHOST_DIF_TYPE3_PROTECTION) ? " DIF3" : "",
+ (hprot & SHOST_DIX_TYPE0_PROTECTION) ? " DIX0" : "",
+ (hprot & SHOST_DIX_TYPE1_PROTECTION) ? " DIX1" : "",
+ (hprot & SHOST_DIX_TYPE2_PROTECTION) ? " DIX2" : "",
+ (hprot & SHOST_DIX_TYPE3_PROTECTION) ? " DIX3" : "");
- if (scsi_debug_guard == 1)
+ if (sdebug_guard == 1)
scsi_host_set_guard(hpnt, SHOST_DIX_GUARD_IP);
else
scsi_host_set_guard(hpnt, SHOST_DIX_GUARD_CRC);
- opts = scsi_debug_opts;
- if (SCSI_DEBUG_OPT_RECOVERED_ERR & opts)
- sdebug_any_injecting_opt = true;
- else if (SCSI_DEBUG_OPT_TRANSPORT_ERR & opts)
- sdebug_any_injecting_opt = true;
- else if (SCSI_DEBUG_OPT_DIF_ERR & opts)
- sdebug_any_injecting_opt = true;
- else if (SCSI_DEBUG_OPT_DIX_ERR & opts)
- sdebug_any_injecting_opt = true;
- else if (SCSI_DEBUG_OPT_SHORT_TRANSFER & opts)
- sdebug_any_injecting_opt = true;
-
+ sdebug_verbose = !!(SDEBUG_OPT_NOISE & sdebug_opts);
+ sdebug_any_injecting_opt = !!(SDEBUG_OPT_ALL_INJECTING & sdebug_opts);
+ if (sdebug_every_nth) /* need stats counters for every_nth */
+ sdebug_statistics = true;
error = scsi_add_host(hpnt, &sdbg_host->dev);
if (error) {
pr_err("scsi_add_host failed\n");
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 8106515d1df8..b2e332af0f51 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -14,8 +14,6 @@
#include <linux/completion.h>
#include <linux/kernel.h>
#include <linux/export.h>
-#include <linux/mempool.h>
-#include <linux/slab.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/delay.h>
@@ -40,39 +38,6 @@
#include "scsi_logging.h"
-#define SG_MEMPOOL_NR ARRAY_SIZE(scsi_sg_pools)
-#define SG_MEMPOOL_SIZE 2
-
-struct scsi_host_sg_pool {
- size_t size;
- char *name;
- struct kmem_cache *slab;
- mempool_t *pool;
-};
-
-#define SP(x) { .size = x, "sgpool-" __stringify(x) }
-#if (SCSI_MAX_SG_SEGMENTS < 32)
-#error SCSI_MAX_SG_SEGMENTS is too small (must be 32 or greater)
-#endif
-static struct scsi_host_sg_pool scsi_sg_pools[] = {
- SP(8),
- SP(16),
-#if (SCSI_MAX_SG_SEGMENTS > 32)
- SP(32),
-#if (SCSI_MAX_SG_SEGMENTS > 64)
- SP(64),
-#if (SCSI_MAX_SG_SEGMENTS > 128)
- SP(128),
-#if (SCSI_MAX_SG_SEGMENTS > 256)
-#error SCSI_MAX_SG_SEGMENTS is too large (256 MAX)
-#endif
-#endif
-#endif
-#endif
- SP(SCSI_MAX_SG_SEGMENTS)
-};
-#undef SP
-
struct kmem_cache *scsi_sdb_cache;
/*
@@ -553,66 +518,6 @@ void scsi_run_host_queues(struct Scsi_Host *shost)
scsi_run_queue(sdev->request_queue);
}
-static inline unsigned int scsi_sgtable_index(unsigned short nents)
-{
- unsigned int index;
-
- BUG_ON(nents > SCSI_MAX_SG_SEGMENTS);
-
- if (nents <= 8)
- index = 0;
- else
- index = get_count_order(nents) - 3;
-
- return index;
-}
-
-static void scsi_sg_free(struct scatterlist *sgl, unsigned int nents)
-{
- struct scsi_host_sg_pool *sgp;
-
- sgp = scsi_sg_pools + scsi_sgtable_index(nents);
- mempool_free(sgl, sgp->pool);
-}
-
-static struct scatterlist *scsi_sg_alloc(unsigned int nents, gfp_t gfp_mask)
-{
- struct scsi_host_sg_pool *sgp;
-
- sgp = scsi_sg_pools + scsi_sgtable_index(nents);
- return mempool_alloc(sgp->pool, gfp_mask);
-}
-
-static void scsi_free_sgtable(struct scsi_data_buffer *sdb, bool mq)
-{
- if (mq && sdb->table.orig_nents <= SCSI_MAX_SG_SEGMENTS)
- return;
- __sg_free_table(&sdb->table, SCSI_MAX_SG_SEGMENTS, mq, scsi_sg_free);
-}
-
-static int scsi_alloc_sgtable(struct scsi_data_buffer *sdb, int nents, bool mq)
-{
- struct scatterlist *first_chunk = NULL;
- int ret;
-
- BUG_ON(!nents);
-
- if (mq) {
- if (nents <= SCSI_MAX_SG_SEGMENTS) {
- sdb->table.nents = sdb->table.orig_nents = nents;
- sg_init_table(sdb->table.sgl, nents);
- return 0;
- }
- first_chunk = sdb->table.sgl;
- }
-
- ret = __sg_alloc_table(&sdb->table, nents, SCSI_MAX_SG_SEGMENTS,
- first_chunk, GFP_ATOMIC, scsi_sg_alloc);
- if (unlikely(ret))
- scsi_free_sgtable(sdb, mq);
- return ret;
-}
-
static void scsi_uninit_cmd(struct scsi_cmnd *cmd)
{
if (cmd->request->cmd_type == REQ_TYPE_FS) {
@@ -625,12 +530,17 @@ static void scsi_uninit_cmd(struct scsi_cmnd *cmd)
static void scsi_mq_free_sgtables(struct scsi_cmnd *cmd)
{
+ struct scsi_data_buffer *sdb;
+
if (cmd->sdb.table.nents)
- scsi_free_sgtable(&cmd->sdb, true);
- if (cmd->request->next_rq && cmd->request->next_rq->special)
- scsi_free_sgtable(cmd->request->next_rq->special, true);
+ sg_free_table_chained(&cmd->sdb.table, true);
+ if (cmd->request->next_rq) {
+ sdb = cmd->request->next_rq->special;
+ if (sdb)
+ sg_free_table_chained(&sdb->table, true);
+ }
if (scsi_prot_sg_count(cmd))
- scsi_free_sgtable(cmd->prot_sdb, true);
+ sg_free_table_chained(&cmd->prot_sdb->table, true);
}
static void scsi_mq_uninit_cmd(struct scsi_cmnd *cmd)
@@ -669,19 +579,19 @@ static void scsi_mq_uninit_cmd(struct scsi_cmnd *cmd)
static void scsi_release_buffers(struct scsi_cmnd *cmd)
{
if (cmd->sdb.table.nents)
- scsi_free_sgtable(&cmd->sdb, false);
+ sg_free_table_chained(&cmd->sdb.table, false);
memset(&cmd->sdb, 0, sizeof(cmd->sdb));
if (scsi_prot_sg_count(cmd))
- scsi_free_sgtable(cmd->prot_sdb, false);
+ sg_free_table_chained(&cmd->prot_sdb->table, false);
}
static void scsi_release_bidi_buffers(struct scsi_cmnd *cmd)
{
struct scsi_data_buffer *bidi_sdb = cmd->request->next_rq->special;
- scsi_free_sgtable(bidi_sdb, false);
+ sg_free_table_chained(&bidi_sdb->table, false);
kmem_cache_free(scsi_sdb_cache, bidi_sdb);
cmd->request->next_rq->special = NULL;
}
@@ -1085,8 +995,8 @@ static int scsi_init_sgtable(struct request *req, struct scsi_data_buffer *sdb)
/*
* If sg table allocation fails, requeue request later.
*/
- if (unlikely(scsi_alloc_sgtable(sdb, req->nr_phys_segments,
- req->mq_ctx != NULL)))
+ if (unlikely(sg_alloc_table_chained(&sdb->table, req->nr_phys_segments,
+ sdb->table.sgl)))
return BLKPREP_DEFER;
/*
@@ -1158,7 +1068,8 @@ int scsi_init_io(struct scsi_cmnd *cmd)
ivecs = blk_rq_count_integrity_sg(rq->q, rq->bio);
- if (scsi_alloc_sgtable(prot_sdb, ivecs, is_mq)) {
+ if (sg_alloc_table_chained(&prot_sdb->table, ivecs,
+ prot_sdb->table.sgl)) {
error = BLKPREP_DEFER;
goto err_exit;
}
@@ -1932,7 +1843,7 @@ static int scsi_mq_prep_fn(struct request *req)
if (scsi_host_get_prot(shost)) {
cmd->prot_sdb = (void *)sg +
min_t(unsigned int,
- shost->sg_tablesize, SCSI_MAX_SG_SEGMENTS) *
+ shost->sg_tablesize, SG_CHUNK_SIZE) *
sizeof(struct scatterlist);
memset(cmd->prot_sdb, 0, sizeof(struct scsi_data_buffer));
@@ -2105,7 +2016,7 @@ static void __scsi_init_queue(struct Scsi_Host *shost, struct request_queue *q)
* this limit is imposed by hardware restrictions
*/
blk_queue_max_segments(q, min_t(unsigned short, shost->sg_tablesize,
- SCSI_MAX_SG_CHAIN_SEGMENTS));
+ SG_MAX_SEGMENTS));
if (scsi_host_prot_dma(shost)) {
shost->sg_prot_tablesize =
@@ -2187,8 +2098,8 @@ int scsi_mq_setup_tags(struct Scsi_Host *shost)
unsigned int cmd_size, sgl_size, tbl_size;
tbl_size = shost->sg_tablesize;
- if (tbl_size > SCSI_MAX_SG_SEGMENTS)
- tbl_size = SCSI_MAX_SG_SEGMENTS;
+ if (tbl_size > SG_CHUNK_SIZE)
+ tbl_size = SG_CHUNK_SIZE;
sgl_size = tbl_size * sizeof(struct scatterlist);
cmd_size = sizeof(struct scsi_cmnd) + shost->hostt->cmd_size + sgl_size;
if (scsi_host_get_prot(shost))
@@ -2264,8 +2175,6 @@ EXPORT_SYMBOL(scsi_unblock_requests);
int __init scsi_init_queue(void)
{
- int i;
-
scsi_sdb_cache = kmem_cache_create("scsi_data_buffer",
sizeof(struct scsi_data_buffer),
0, 0, NULL);
@@ -2274,53 +2183,12 @@ int __init scsi_init_queue(void)
return -ENOMEM;
}
- for (i = 0; i < SG_MEMPOOL_NR; i++) {
- struct scsi_host_sg_pool *sgp = scsi_sg_pools + i;
- int size = sgp->size * sizeof(struct scatterlist);
-
- sgp->slab = kmem_cache_create(sgp->name, size, 0,
- SLAB_HWCACHE_ALIGN, NULL);
- if (!sgp->slab) {
- printk(KERN_ERR "SCSI: can't init sg slab %s\n",
- sgp->name);
- goto cleanup_sdb;
- }
-
- sgp->pool = mempool_create_slab_pool(SG_MEMPOOL_SIZE,
- sgp->slab);
- if (!sgp->pool) {
- printk(KERN_ERR "SCSI: can't init sg mempool %s\n",
- sgp->name);
- goto cleanup_sdb;
- }
- }
-
return 0;
-
-cleanup_sdb:
- for (i = 0; i < SG_MEMPOOL_NR; i++) {
- struct scsi_host_sg_pool *sgp = scsi_sg_pools + i;
- if (sgp->pool)
- mempool_destroy(sgp->pool);
- if (sgp->slab)
- kmem_cache_destroy(sgp->slab);
- }
- kmem_cache_destroy(scsi_sdb_cache);
-
- return -ENOMEM;
}
void scsi_exit_queue(void)
{
- int i;
-
kmem_cache_destroy(scsi_sdb_cache);
-
- for (i = 0; i < SG_MEMPOOL_NR; i++) {
- struct scsi_host_sg_pool *sgp = scsi_sg_pools + i;
- mempool_destroy(sgp->pool);
- kmem_cache_destroy(sgp->slab);
- }
}
/**
@@ -3196,6 +3064,7 @@ int scsi_vpd_lun_id(struct scsi_device *sdev, char *id, size_t id_len)
* - EUI-64 based 12-byte
* - NAA IEEE Registered
* - NAA IEEE Extended
+ * - T10 Vendor ID
* as longer descriptors reduce the likelyhood
* of identification clashes.
*/
@@ -3214,6 +3083,21 @@ int scsi_vpd_lun_id(struct scsi_device *sdev, char *id, size_t id_len)
goto next_desig;
switch (d[1] & 0xf) {
+ case 0x1:
+ /* T10 Vendor ID */
+ if (cur_id_size > d[3])
+ break;
+ /* Prefer anything */
+ if (cur_id_type > 0x01 && cur_id_type != 0xff)
+ break;
+ cur_id_size = d[3];
+ if (cur_id_size + 4 > id_len)
+ cur_id_size = id_len - 4;
+ cur_id_str = d + 4;
+ cur_id_type = d[1] & 0xf;
+ id_size = snprintf(id, id_len, "t10.%*pE",
+ cur_id_size, cur_id_str);
+ break;
case 0x2:
/* EUI-64 */
if (cur_id_size > d[3])
diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h
index 27b4d0a6a01d..57a4b9973320 100644
--- a/drivers/scsi/scsi_priv.h
+++ b/drivers/scsi/scsi_priv.h
@@ -116,7 +116,7 @@ extern void scsi_exit_procfs(void);
extern char scsi_scan_type[];
extern int scsi_complete_async_scans(void);
extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int,
- unsigned int, u64, int);
+ unsigned int, u64, enum scsi_scan_mode);
extern void scsi_forget_host(struct Scsi_Host *);
extern void scsi_rescan_device(struct device *);
diff --git a/drivers/scsi/scsi_proc.c b/drivers/scsi/scsi_proc.c
index 251598eb3547..7a74b82e8973 100644
--- a/drivers/scsi/scsi_proc.c
+++ b/drivers/scsi/scsi_proc.c
@@ -251,7 +251,8 @@ static int scsi_add_single_device(uint host, uint channel, uint id, uint lun)
if (shost->transportt->user_scan)
error = shost->transportt->user_scan(shost, channel, id, lun);
else
- error = scsi_scan_host_selected(shost, channel, id, lun, 1);
+ error = scsi_scan_host_selected(shost, channel, id, lun,
+ SCSI_SCAN_MANUAL);
scsi_host_put(shost);
return error;
}
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 97074c91e328..e0a78f53d809 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -96,10 +96,13 @@ MODULE_PARM_DESC(max_luns,
#define SCSI_SCAN_TYPE_DEFAULT "sync"
#endif
-char scsi_scan_type[6] = SCSI_SCAN_TYPE_DEFAULT;
+char scsi_scan_type[7] = SCSI_SCAN_TYPE_DEFAULT;
-module_param_string(scan, scsi_scan_type, sizeof(scsi_scan_type), S_IRUGO);
-MODULE_PARM_DESC(scan, "sync, async or none");
+module_param_string(scan, scsi_scan_type, sizeof(scsi_scan_type),
+ S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(scan, "sync, async, manual, or none. "
+ "Setting to 'manual' disables automatic scanning, but allows "
+ "for manual device scan via the 'scan' sysfs attribute.");
static unsigned int scsi_inq_timeout = SCSI_TIMEOUT/HZ + 18;
@@ -316,6 +319,7 @@ static void scsi_target_destroy(struct scsi_target *starget)
struct Scsi_Host *shost = dev_to_shost(dev->parent);
unsigned long flags;
+ BUG_ON(starget->state == STARGET_DEL);
starget->state = STARGET_DEL;
transport_destroy_device(dev);
spin_lock_irqsave(shost->host_lock, flags);
@@ -1040,7 +1044,8 @@ static unsigned char *scsi_inq_str(unsigned char *buf, unsigned char *inq,
* @lun: LUN of target device
* @bflagsp: store bflags here if not NULL
* @sdevp: probe the LUN corresponding to this scsi_device
- * @rescan: if nonzero skip some code only needed on first scan
+ * @rescan: if not equal to SCSI_SCAN_INITIAL skip some code only
+ * needed on first scan
* @hostdata: passed to scsi_alloc_sdev()
*
* Description:
@@ -1055,7 +1060,8 @@ static unsigned char *scsi_inq_str(unsigned char *buf, unsigned char *inq,
**/
static int scsi_probe_and_add_lun(struct scsi_target *starget,
u64 lun, int *bflagsp,
- struct scsi_device **sdevp, int rescan,
+ struct scsi_device **sdevp,
+ enum scsi_scan_mode rescan,
void *hostdata)
{
struct scsi_device *sdev;
@@ -1069,7 +1075,7 @@ static int scsi_probe_and_add_lun(struct scsi_target *starget,
*/
sdev = scsi_device_lookup_by_target(starget, lun);
if (sdev) {
- if (rescan || !scsi_device_created(sdev)) {
+ if (rescan != SCSI_SCAN_INITIAL || !scsi_device_created(sdev)) {
SCSI_LOG_SCAN_BUS(3, sdev_printk(KERN_INFO, sdev,
"scsi scan: device exists on %s\n",
dev_name(&sdev->sdev_gendev)));
@@ -1205,7 +1211,8 @@ static int scsi_probe_and_add_lun(struct scsi_target *starget,
* Modifies sdevscan->lun.
**/
static void scsi_sequential_lun_scan(struct scsi_target *starget,
- int bflags, int scsi_level, int rescan)
+ int bflags, int scsi_level,
+ enum scsi_scan_mode rescan)
{
uint max_dev_lun;
u64 sparse_lun, lun;
@@ -1300,7 +1307,7 @@ static void scsi_sequential_lun_scan(struct scsi_target *starget,
* 1: could not scan with REPORT LUN
**/
static int scsi_report_lun_scan(struct scsi_target *starget, int bflags,
- int rescan)
+ enum scsi_scan_mode rescan)
{
char devname[64];
unsigned char scsi_cmd[MAX_COMMAND_SIZE];
@@ -1546,7 +1553,7 @@ void scsi_rescan_device(struct device *dev)
EXPORT_SYMBOL(scsi_rescan_device);
static void __scsi_scan_target(struct device *parent, unsigned int channel,
- unsigned int id, u64 lun, int rescan)
+ unsigned int id, u64 lun, enum scsi_scan_mode rescan)
{
struct Scsi_Host *shost = dev_to_shost(parent);
int bflags = 0;
@@ -1604,7 +1611,10 @@ static void __scsi_scan_target(struct device *parent, unsigned int channel,
* @channel: channel to scan
* @id: target id to scan
* @lun: Specific LUN to scan or SCAN_WILD_CARD
- * @rescan: passed to LUN scanning routines
+ * @rescan: passed to LUN scanning routines; SCSI_SCAN_INITIAL for
+ * no rescan, SCSI_SCAN_RESCAN to rescan existing LUNs,
+ * and SCSI_SCAN_MANUAL to force scanning even if
+ * 'scan=manual' is set.
*
* Description:
* Scan the target id on @parent, @channel, and @id. Scan at least LUN 0,
@@ -1614,13 +1624,17 @@ static void __scsi_scan_target(struct device *parent, unsigned int channel,
* sequential scan of LUNs on the target id.
**/
void scsi_scan_target(struct device *parent, unsigned int channel,
- unsigned int id, u64 lun, int rescan)
+ unsigned int id, u64 lun, enum scsi_scan_mode rescan)
{
struct Scsi_Host *shost = dev_to_shost(parent);
if (strncmp(scsi_scan_type, "none", 4) == 0)
return;
+ if (rescan != SCSI_SCAN_MANUAL &&
+ strncmp(scsi_scan_type, "manual", 6) == 0)
+ return;
+
mutex_lock(&shost->scan_mutex);
if (!shost->async_scan)
scsi_complete_async_scans();
@@ -1634,7 +1648,8 @@ void scsi_scan_target(struct device *parent, unsigned int channel,
EXPORT_SYMBOL(scsi_scan_target);
static void scsi_scan_channel(struct Scsi_Host *shost, unsigned int channel,
- unsigned int id, u64 lun, int rescan)
+ unsigned int id, u64 lun,
+ enum scsi_scan_mode rescan)
{
uint order_id;
@@ -1665,7 +1680,8 @@ static void scsi_scan_channel(struct Scsi_Host *shost, unsigned int channel,
}
int scsi_scan_host_selected(struct Scsi_Host *shost, unsigned int channel,
- unsigned int id, u64 lun, int rescan)
+ unsigned int id, u64 lun,
+ enum scsi_scan_mode rescan)
{
SCSI_LOG_SCAN_BUS(3, shost_printk (KERN_INFO, shost,
"%s: <%u:%u:%llu>\n",
@@ -1844,7 +1860,8 @@ void scsi_scan_host(struct Scsi_Host *shost)
{
struct async_scan_data *data;
- if (strncmp(scsi_scan_type, "none", 4) == 0)
+ if (strncmp(scsi_scan_type, "none", 4) == 0 ||
+ strncmp(scsi_scan_type, "manual", 6) == 0)
return;
if (scsi_autopm_get_host(shost) < 0)
return;
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 2b642b145be1..07349270535d 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -145,7 +145,8 @@ static int scsi_scan(struct Scsi_Host *shost, const char *str)
if (shost->transportt->user_scan)
res = shost->transportt->user_scan(shost, channel, id, lun);
else
- res = scsi_scan_host_selected(shost, channel, id, lun, 1);
+ res = scsi_scan_host_selected(shost, channel, id, lun,
+ SCSI_SCAN_MANUAL);
return res;
}
@@ -1366,18 +1367,18 @@ static void __scsi_remove_target(struct scsi_target *starget)
void scsi_remove_target(struct device *dev)
{
struct Scsi_Host *shost = dev_to_shost(dev->parent);
- struct scsi_target *starget, *last_target = NULL;
+ struct scsi_target *starget;
unsigned long flags;
restart:
spin_lock_irqsave(shost->host_lock, flags);
list_for_each_entry(starget, &shost->__targets, siblings) {
if (starget->state == STARGET_DEL ||
- starget == last_target)
+ starget->state == STARGET_REMOVE)
continue;
if (starget->dev.parent == dev || &starget->dev == dev) {
kref_get(&starget->reap_ref);
- last_target = starget;
+ starget->state = STARGET_REMOVE;
spin_unlock_irqrestore(shost->host_lock, flags);
__scsi_remove_target(starget);
scsi_target_reap(starget);
diff --git a/drivers/scsi/scsi_trace.c b/drivers/scsi/scsi_trace.c
index 08bb47b53bc3..0ff083bbf5b1 100644
--- a/drivers/scsi/scsi_trace.c
+++ b/drivers/scsi/scsi_trace.c
@@ -17,6 +17,7 @@
*/
#include <linux/kernel.h>
#include <linux/trace_seq.h>
+#include <asm/unaligned.h>
#include <trace/events/scsi.h>
#define SERVICE_ACTION16(cdb) (cdb[1] & 0x1f)
@@ -231,6 +232,158 @@ out:
}
static const char *
+scsi_trace_maintenance_in(struct trace_seq *p, unsigned char *cdb, int len)
+{
+ const char *ret = trace_seq_buffer_ptr(p), *cmd;
+ u32 alloc_len;
+
+ switch (SERVICE_ACTION16(cdb)) {
+ case MI_REPORT_IDENTIFYING_INFORMATION:
+ cmd = "REPORT_IDENTIFYING_INFORMATION";
+ break;
+ case MI_REPORT_TARGET_PGS:
+ cmd = "REPORT_TARGET_PORT_GROUPS";
+ break;
+ case MI_REPORT_ALIASES:
+ cmd = "REPORT_ALIASES";
+ break;
+ case MI_REPORT_SUPPORTED_OPERATION_CODES:
+ cmd = "REPORT_SUPPORTED_OPERATION_CODES";
+ break;
+ case MI_REPORT_SUPPORTED_TASK_MANAGEMENT_FUNCTIONS:
+ cmd = "REPORT_SUPPORTED_TASK_MANAGEMENT_FUNCTIONS";
+ break;
+ case MI_REPORT_PRIORITY:
+ cmd = "REPORT_PRIORITY";
+ break;
+ case MI_REPORT_TIMESTAMP:
+ cmd = "REPORT_TIMESTAMP";
+ break;
+ case MI_MANAGEMENT_PROTOCOL_IN:
+ cmd = "MANAGEMENT_PROTOCOL_IN";
+ break;
+ default:
+ trace_seq_puts(p, "UNKNOWN");
+ goto out;
+ }
+
+ alloc_len = get_unaligned_be32(&cdb[6]);
+
+ trace_seq_printf(p, "%s alloc_len=%u", cmd, alloc_len);
+
+out:
+ trace_seq_putc(p, 0);
+
+ return ret;
+}
+
+static const char *
+scsi_trace_maintenance_out(struct trace_seq *p, unsigned char *cdb, int len)
+{
+ const char *ret = trace_seq_buffer_ptr(p), *cmd;
+ u32 alloc_len;
+
+ switch (SERVICE_ACTION16(cdb)) {
+ case MO_SET_IDENTIFYING_INFORMATION:
+ cmd = "SET_IDENTIFYING_INFORMATION";
+ break;
+ case MO_SET_TARGET_PGS:
+ cmd = "SET_TARGET_PORT_GROUPS";
+ break;
+ case MO_CHANGE_ALIASES:
+ cmd = "CHANGE_ALIASES";
+ break;
+ case MO_SET_PRIORITY:
+ cmd = "SET_PRIORITY";
+ break;
+ case MO_SET_TIMESTAMP:
+ cmd = "SET_TIMESTAMP";
+ break;
+ case MO_MANAGEMENT_PROTOCOL_OUT:
+ cmd = "MANAGEMENT_PROTOCOL_OUT";
+ break;
+ default:
+ trace_seq_puts(p, "UNKNOWN");
+ goto out;
+ }
+
+ alloc_len = get_unaligned_be32(&cdb[6]);
+
+ trace_seq_printf(p, "%s alloc_len=%u", cmd, alloc_len);
+
+out:
+ trace_seq_putc(p, 0);
+
+ return ret;
+}
+
+static const char *
+scsi_trace_zbc_in(struct trace_seq *p, unsigned char *cdb, int len)
+{
+ const char *ret = trace_seq_buffer_ptr(p), *cmd;
+ u64 zone_id;
+ u32 alloc_len;
+ u8 options;
+
+ switch (SERVICE_ACTION16(cdb)) {
+ case ZI_REPORT_ZONES:
+ cmd = "REPORT_ZONES";
+ break;
+ default:
+ trace_seq_puts(p, "UNKNOWN");
+ goto out;
+ }
+
+ zone_id = get_unaligned_be64(&cdb[2]);
+ alloc_len = get_unaligned_be32(&cdb[10]);
+ options = cdb[14] & 0x3f;
+
+ trace_seq_printf(p, "%s zone=%llu alloc_len=%u options=%u partial=%u",
+ cmd, (unsigned long long)zone_id, alloc_len,
+ options, (cdb[14] >> 7) & 1);
+
+out:
+ trace_seq_putc(p, 0);
+
+ return ret;
+}
+
+static const char *
+scsi_trace_zbc_out(struct trace_seq *p, unsigned char *cdb, int len)
+{
+ const char *ret = trace_seq_buffer_ptr(p), *cmd;
+ u64 zone_id;
+
+ switch (SERVICE_ACTION16(cdb)) {
+ case ZO_CLOSE_ZONE:
+ cmd = "CLOSE_ZONE";
+ break;
+ case ZO_FINISH_ZONE:
+ cmd = "FINISH_ZONE";
+ break;
+ case ZO_OPEN_ZONE:
+ cmd = "OPEN_ZONE";
+ break;
+ case ZO_RESET_WRITE_POINTER:
+ cmd = "RESET_WRITE_POINTER";
+ break;
+ default:
+ trace_seq_puts(p, "UNKNOWN");
+ goto out;
+ }
+
+ zone_id = get_unaligned_be64(&cdb[2]);
+
+ trace_seq_printf(p, "%s zone=%llu all=%u", cmd,
+ (unsigned long long)zone_id, cdb[14] & 1);
+
+out:
+ trace_seq_putc(p, 0);
+
+ return ret;
+}
+
+static const char *
scsi_trace_varlen(struct trace_seq *p, unsigned char *cdb, int len)
{
switch (SERVICE_ACTION32(cdb)) {
@@ -282,6 +435,14 @@ scsi_trace_parse_cdb(struct trace_seq *p, unsigned char *cdb, int len)
return scsi_trace_service_action_in(p, cdb, len);
case VARIABLE_LENGTH_CMD:
return scsi_trace_varlen(p, cdb, len);
+ case MAINTENANCE_IN:
+ return scsi_trace_maintenance_in(p, cdb, len);
+ case MAINTENANCE_OUT:
+ return scsi_trace_maintenance_out(p, cdb, len);
+ case ZBC_IN:
+ return scsi_trace_zbc_in(p, cdb, len);
+ case ZBC_OUT:
+ return scsi_trace_zbc_out(p, cdb, len);
default:
return scsi_trace_misc(p, cdb, len);
}
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index 8a8822641b26..0f3a3869524b 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -2027,11 +2027,10 @@ static void fc_vport_dev_release(struct device *dev)
kfree(vport);
}
-int scsi_is_fc_vport(const struct device *dev)
+static int scsi_is_fc_vport(const struct device *dev)
{
return dev->release == fc_vport_dev_release;
}
-EXPORT_SYMBOL(scsi_is_fc_vport);
static int fc_vport_match(struct attribute_container *cont,
struct device *dev)
@@ -2110,7 +2109,8 @@ fc_user_scan_tgt(struct Scsi_Host *shost, uint channel, uint id, u64 lun)
if ((channel == rport->channel) &&
(id == rport->scsi_target_id)) {
spin_unlock_irqrestore(shost->host_lock, flags);
- scsi_scan_target(&rport->dev, channel, id, lun, 1);
+ scsi_scan_target(&rport->dev, channel, id, lun,
+ SCSI_SCAN_MANUAL);
return;
}
}
@@ -3277,7 +3277,8 @@ fc_scsi_scan_rport(struct work_struct *work)
(rport->roles & FC_PORT_ROLE_FCP_TARGET) &&
!(i->f->disable_target_scan)) {
scsi_scan_target(&rport->dev, rport->channel,
- rport->scsi_target_id, SCAN_WILD_CARD, 1);
+ rport->scsi_target_id, SCAN_WILD_CARD,
+ SCSI_SCAN_RESCAN);
}
spin_lock_irqsave(shost->host_lock, flags);
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 441481623fb9..42bca619f854 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -1009,7 +1009,7 @@ static void iscsi_flashnode_sess_release(struct device *dev)
kfree(fnode_sess);
}
-struct device_type iscsi_flashnode_sess_dev_type = {
+static struct device_type iscsi_flashnode_sess_dev_type = {
.name = "iscsi_flashnode_sess_dev_type",
.groups = iscsi_flashnode_sess_attr_groups,
.release = iscsi_flashnode_sess_release,
@@ -1195,13 +1195,13 @@ static void iscsi_flashnode_conn_release(struct device *dev)
kfree(fnode_conn);
}
-struct device_type iscsi_flashnode_conn_dev_type = {
+static struct device_type iscsi_flashnode_conn_dev_type = {
.name = "iscsi_flashnode_conn_dev_type",
.groups = iscsi_flashnode_conn_attr_groups,
.release = iscsi_flashnode_conn_release,
};
-struct bus_type iscsi_flashnode_bus;
+static struct bus_type iscsi_flashnode_bus;
int iscsi_flashnode_bus_match(struct device *dev,
struct device_driver *drv)
@@ -1212,7 +1212,7 @@ int iscsi_flashnode_bus_match(struct device *dev,
}
EXPORT_SYMBOL_GPL(iscsi_flashnode_bus_match);
-struct bus_type iscsi_flashnode_bus = {
+static struct bus_type iscsi_flashnode_bus = {
.name = "iscsi_flashnode",
.match = &iscsi_flashnode_bus_match,
};
@@ -1324,11 +1324,10 @@ EXPORT_SYMBOL_GPL(iscsi_create_flashnode_conn);
* 1 on success
* 0 on failure
*/
-int iscsi_is_flashnode_conn_dev(struct device *dev, void *data)
+static int iscsi_is_flashnode_conn_dev(struct device *dev, void *data)
{
return dev->bus == &iscsi_flashnode_bus;
}
-EXPORT_SYMBOL_GPL(iscsi_is_flashnode_conn_dev);
static int iscsi_destroy_flashnode_conn(struct iscsi_bus_flash_conn *fnode_conn)
{
@@ -1783,6 +1782,7 @@ struct iscsi_scan_data {
unsigned int channel;
unsigned int id;
u64 lun;
+ enum scsi_scan_mode rescan;
};
static int iscsi_user_scan_session(struct device *dev, void *data)
@@ -1819,7 +1819,7 @@ static int iscsi_user_scan_session(struct device *dev, void *data)
(scan_data->id == SCAN_WILD_CARD ||
scan_data->id == id))
scsi_scan_target(&session->dev, 0, id,
- scan_data->lun, 1);
+ scan_data->lun, scan_data->rescan);
}
user_scan_exit:
@@ -1836,6 +1836,7 @@ static int iscsi_user_scan(struct Scsi_Host *shost, uint channel,
scan_data.channel = channel;
scan_data.id = id;
scan_data.lun = lun;
+ scan_data.rescan = SCSI_SCAN_MANUAL;
return device_for_each_child(&shost->shost_gendev, &scan_data,
iscsi_user_scan_session);
@@ -1852,6 +1853,7 @@ static void iscsi_scan_session(struct work_struct *work)
scan_data.channel = 0;
scan_data.id = SCAN_WILD_CARD;
scan_data.lun = SCAN_WILD_CARD;
+ scan_data.rescan = SCSI_SCAN_RESCAN;
iscsi_user_scan_session(&session->dev, &scan_data);
atomic_dec(&ihost->nr_scans);
@@ -2067,13 +2069,10 @@ EXPORT_SYMBOL_GPL(iscsi_alloc_session);
int iscsi_add_session(struct iscsi_cls_session *session, unsigned int target_id)
{
- struct Scsi_Host *shost = iscsi_session_to_shost(session);
- struct iscsi_cls_host *ihost;
unsigned long flags;
int id = 0;
int err;
- ihost = shost->shost_data;
session->sid = atomic_add_return(1, &iscsi_session_nr);
if (target_id == ISCSI_MAX_TARGET) {
diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c
index b6f958193dad..3f0ff072184b 100644
--- a/drivers/scsi/scsi_transport_sas.c
+++ b/drivers/scsi/scsi_transport_sas.c
@@ -1614,7 +1614,8 @@ int sas_rphy_add(struct sas_rphy *rphy)
else
lun = 0;
- scsi_scan_target(&rphy->dev, 0, rphy->scsi_target_id, lun, 0);
+ scsi_scan_target(&rphy->dev, 0, rphy->scsi_target_id, lun,
+ SCSI_SCAN_INITIAL);
}
return 0;
@@ -1739,8 +1740,8 @@ static int sas_user_scan(struct Scsi_Host *shost, uint channel,
if ((channel == SCAN_WILD_CARD || channel == 0) &&
(id == SCAN_WILD_CARD || id == rphy->scsi_target_id)) {
- scsi_scan_target(&rphy->dev, 0,
- rphy->scsi_target_id, lun, 1);
+ scsi_scan_target(&rphy->dev, 0, rphy->scsi_target_id,
+ lun, SCSI_SCAN_MANUAL);
}
}
mutex_unlock(&sas_host->lock);
diff --git a/drivers/scsi/sense_codes.h b/drivers/scsi/sense_codes.h
new file mode 100644
index 000000000000..e4e1dccd1f2f
--- /dev/null
+++ b/drivers/scsi/sense_codes.h
@@ -0,0 +1,826 @@
+/*
+ * The canonical list of T10 Additional Sense Codes is available at:
+ * http://www.t10.org/lists/asc-num.txt [most recent: 20141221]
+ */
+
+SENSE_CODE(0x0000, "No additional sense information")
+SENSE_CODE(0x0001, "Filemark detected")
+SENSE_CODE(0x0002, "End-of-partition/medium detected")
+SENSE_CODE(0x0003, "Setmark detected")
+SENSE_CODE(0x0004, "Beginning-of-partition/medium detected")
+SENSE_CODE(0x0005, "End-of-data detected")
+SENSE_CODE(0x0006, "I/O process terminated")
+SENSE_CODE(0x0007, "Programmable early warning detected")
+SENSE_CODE(0x0011, "Audio play operation in progress")
+SENSE_CODE(0x0012, "Audio play operation paused")
+SENSE_CODE(0x0013, "Audio play operation successfully completed")
+SENSE_CODE(0x0014, "Audio play operation stopped due to error")
+SENSE_CODE(0x0015, "No current audio status to return")
+SENSE_CODE(0x0016, "Operation in progress")
+SENSE_CODE(0x0017, "Cleaning requested")
+SENSE_CODE(0x0018, "Erase operation in progress")
+SENSE_CODE(0x0019, "Locate operation in progress")
+SENSE_CODE(0x001A, "Rewind operation in progress")
+SENSE_CODE(0x001B, "Set capacity operation in progress")
+SENSE_CODE(0x001C, "Verify operation in progress")
+SENSE_CODE(0x001D, "ATA pass through information available")
+SENSE_CODE(0x001E, "Conflicting SA creation request")
+SENSE_CODE(0x001F, "Logical unit transitioning to another power condition")
+SENSE_CODE(0x0020, "Extended copy information available")
+SENSE_CODE(0x0021, "Atomic command aborted due to ACA")
+
+SENSE_CODE(0x0100, "No index/sector signal")
+
+SENSE_CODE(0x0200, "No seek complete")
+
+SENSE_CODE(0x0300, "Peripheral device write fault")
+SENSE_CODE(0x0301, "No write current")
+SENSE_CODE(0x0302, "Excessive write errors")
+
+SENSE_CODE(0x0400, "Logical unit not ready, cause not reportable")
+SENSE_CODE(0x0401, "Logical unit is in process of becoming ready")
+SENSE_CODE(0x0402, "Logical unit not ready, initializing command required")
+SENSE_CODE(0x0403, "Logical unit not ready, manual intervention required")
+SENSE_CODE(0x0404, "Logical unit not ready, format in progress")
+SENSE_CODE(0x0405, "Logical unit not ready, rebuild in progress")
+SENSE_CODE(0x0406, "Logical unit not ready, recalculation in progress")
+SENSE_CODE(0x0407, "Logical unit not ready, operation in progress")
+SENSE_CODE(0x0408, "Logical unit not ready, long write in progress")
+SENSE_CODE(0x0409, "Logical unit not ready, self-test in progress")
+SENSE_CODE(0x040A, "Logical unit not accessible, asymmetric access state transition")
+SENSE_CODE(0x040B, "Logical unit not accessible, target port in standby state")
+SENSE_CODE(0x040C, "Logical unit not accessible, target port in unavailable state")
+SENSE_CODE(0x040D, "Logical unit not ready, structure check required")
+SENSE_CODE(0x040E, "Logical unit not ready, security session in progress")
+SENSE_CODE(0x0410, "Logical unit not ready, auxiliary memory not accessible")
+SENSE_CODE(0x0411, "Logical unit not ready, notify (enable spinup) required")
+SENSE_CODE(0x0412, "Logical unit not ready, offline")
+SENSE_CODE(0x0413, "Logical unit not ready, SA creation in progress")
+SENSE_CODE(0x0414, "Logical unit not ready, space allocation in progress")
+SENSE_CODE(0x0415, "Logical unit not ready, robotics disabled")
+SENSE_CODE(0x0416, "Logical unit not ready, configuration required")
+SENSE_CODE(0x0417, "Logical unit not ready, calibration required")
+SENSE_CODE(0x0418, "Logical unit not ready, a door is open")
+SENSE_CODE(0x0419, "Logical unit not ready, operating in sequential mode")
+SENSE_CODE(0x041A, "Logical unit not ready, start stop unit command in progress")
+SENSE_CODE(0x041B, "Logical unit not ready, sanitize in progress")
+SENSE_CODE(0x041C, "Logical unit not ready, additional power use not yet granted")
+SENSE_CODE(0x041D, "Logical unit not ready, configuration in progress")
+SENSE_CODE(0x041E, "Logical unit not ready, microcode activation required")
+SENSE_CODE(0x041F, "Logical unit not ready, microcode download required")
+SENSE_CODE(0x0420, "Logical unit not ready, logical unit reset required")
+SENSE_CODE(0x0421, "Logical unit not ready, hard reset required")
+SENSE_CODE(0x0422, "Logical unit not ready, power cycle required")
+
+SENSE_CODE(0x0500, "Logical unit does not respond to selection")
+
+SENSE_CODE(0x0600, "No reference position found")
+
+SENSE_CODE(0x0700, "Multiple peripheral devices selected")
+
+SENSE_CODE(0x0800, "Logical unit communication failure")
+SENSE_CODE(0x0801, "Logical unit communication time-out")
+SENSE_CODE(0x0802, "Logical unit communication parity error")
+SENSE_CODE(0x0803, "Logical unit communication CRC error (Ultra-DMA/32)")
+SENSE_CODE(0x0804, "Unreachable copy target")
+
+SENSE_CODE(0x0900, "Track following error")
+SENSE_CODE(0x0901, "Tracking servo failure")
+SENSE_CODE(0x0902, "Focus servo failure")
+SENSE_CODE(0x0903, "Spindle servo failure")
+SENSE_CODE(0x0904, "Head select fault")
+SENSE_CODE(0x0905, "Vibration induced tracking error")
+
+SENSE_CODE(0x0A00, "Error log overflow")
+
+SENSE_CODE(0x0B00, "Warning")
+SENSE_CODE(0x0B01, "Warning - specified temperature exceeded")
+SENSE_CODE(0x0B02, "Warning - enclosure degraded")
+SENSE_CODE(0x0B03, "Warning - background self-test failed")
+SENSE_CODE(0x0B04, "Warning - background pre-scan detected medium error")
+SENSE_CODE(0x0B05, "Warning - background medium scan detected medium error")
+SENSE_CODE(0x0B06, "Warning - non-volatile cache now volatile")
+SENSE_CODE(0x0B07, "Warning - degraded power to non-volatile cache")
+SENSE_CODE(0x0B08, "Warning - power loss expected")
+SENSE_CODE(0x0B09, "Warning - device statistics notification active")
+
+SENSE_CODE(0x0C00, "Write error")
+SENSE_CODE(0x0C01, "Write error - recovered with auto reallocation")
+SENSE_CODE(0x0C02, "Write error - auto reallocation failed")
+SENSE_CODE(0x0C03, "Write error - recommend reassignment")
+SENSE_CODE(0x0C04, "Compression check miscompare error")
+SENSE_CODE(0x0C05, "Data expansion occurred during compression")
+SENSE_CODE(0x0C06, "Block not compressible")
+SENSE_CODE(0x0C07, "Write error - recovery needed")
+SENSE_CODE(0x0C08, "Write error - recovery failed")
+SENSE_CODE(0x0C09, "Write error - loss of streaming")
+SENSE_CODE(0x0C0A, "Write error - padding blocks added")
+SENSE_CODE(0x0C0B, "Auxiliary memory write error")
+SENSE_CODE(0x0C0C, "Write error - unexpected unsolicited data")
+SENSE_CODE(0x0C0D, "Write error - not enough unsolicited data")
+SENSE_CODE(0x0C0E, "Multiple write errors")
+SENSE_CODE(0x0C0F, "Defects in error window")
+SENSE_CODE(0x0C10, "Incomplete multiple atomic write operations")
+
+SENSE_CODE(0x0D00, "Error detected by third party temporary initiator")
+SENSE_CODE(0x0D01, "Third party device failure")
+SENSE_CODE(0x0D02, "Copy target device not reachable")
+SENSE_CODE(0x0D03, "Incorrect copy target device type")
+SENSE_CODE(0x0D04, "Copy target device data underrun")
+SENSE_CODE(0x0D05, "Copy target device data overrun")
+
+SENSE_CODE(0x0E00, "Invalid information unit")
+SENSE_CODE(0x0E01, "Information unit too short")
+SENSE_CODE(0x0E02, "Information unit too long")
+SENSE_CODE(0x0E03, "Invalid field in command information unit")
+
+SENSE_CODE(0x1000, "Id CRC or ECC error")
+SENSE_CODE(0x1001, "Logical block guard check failed")
+SENSE_CODE(0x1002, "Logical block application tag check failed")
+SENSE_CODE(0x1003, "Logical block reference tag check failed")
+SENSE_CODE(0x1004, "Logical block protection error on recover buffered data")
+SENSE_CODE(0x1005, "Logical block protection method error")
+
+SENSE_CODE(0x1100, "Unrecovered read error")
+SENSE_CODE(0x1101, "Read retries exhausted")
+SENSE_CODE(0x1102, "Error too long to correct")
+SENSE_CODE(0x1103, "Multiple read errors")
+SENSE_CODE(0x1104, "Unrecovered read error - auto reallocate failed")
+SENSE_CODE(0x1105, "L-EC uncorrectable error")
+SENSE_CODE(0x1106, "CIRC unrecovered error")
+SENSE_CODE(0x1107, "Data re-synchronization error")
+SENSE_CODE(0x1108, "Incomplete block read")
+SENSE_CODE(0x1109, "No gap found")
+SENSE_CODE(0x110A, "Miscorrected error")
+SENSE_CODE(0x110B, "Unrecovered read error - recommend reassignment")
+SENSE_CODE(0x110C, "Unrecovered read error - recommend rewrite the data")
+SENSE_CODE(0x110D, "De-compression CRC error")
+SENSE_CODE(0x110E, "Cannot decompress using declared algorithm")
+SENSE_CODE(0x110F, "Error reading UPC/EAN number")
+SENSE_CODE(0x1110, "Error reading ISRC number")
+SENSE_CODE(0x1111, "Read error - loss of streaming")
+SENSE_CODE(0x1112, "Auxiliary memory read error")
+SENSE_CODE(0x1113, "Read error - failed retransmission request")
+SENSE_CODE(0x1114, "Read error - lba marked bad by application client")
+SENSE_CODE(0x1115, "Write after sanitize required")
+
+SENSE_CODE(0x1200, "Address mark not found for id field")
+
+SENSE_CODE(0x1300, "Address mark not found for data field")
+
+SENSE_CODE(0x1400, "Recorded entity not found")
+SENSE_CODE(0x1401, "Record not found")
+SENSE_CODE(0x1402, "Filemark or setmark not found")
+SENSE_CODE(0x1403, "End-of-data not found")
+SENSE_CODE(0x1404, "Block sequence error")
+SENSE_CODE(0x1405, "Record not found - recommend reassignment")
+SENSE_CODE(0x1406, "Record not found - data auto-reallocated")
+SENSE_CODE(0x1407, "Locate operation failure")
+
+SENSE_CODE(0x1500, "Random positioning error")
+SENSE_CODE(0x1501, "Mechanical positioning error")
+SENSE_CODE(0x1502, "Positioning error detected by read of medium")
+
+SENSE_CODE(0x1600, "Data synchronization mark error")
+SENSE_CODE(0x1601, "Data sync error - data rewritten")
+SENSE_CODE(0x1602, "Data sync error - recommend rewrite")
+SENSE_CODE(0x1603, "Data sync error - data auto-reallocated")
+SENSE_CODE(0x1604, "Data sync error - recommend reassignment")
+
+SENSE_CODE(0x1700, "Recovered data with no error correction applied")
+SENSE_CODE(0x1701, "Recovered data with retries")
+SENSE_CODE(0x1702, "Recovered data with positive head offset")
+SENSE_CODE(0x1703, "Recovered data with negative head offset")
+SENSE_CODE(0x1704, "Recovered data with retries and/or circ applied")
+SENSE_CODE(0x1705, "Recovered data using previous sector id")
+SENSE_CODE(0x1706, "Recovered data without ECC - data auto-reallocated")
+SENSE_CODE(0x1707, "Recovered data without ECC - recommend reassignment")
+SENSE_CODE(0x1708, "Recovered data without ECC - recommend rewrite")
+SENSE_CODE(0x1709, "Recovered data without ECC - data rewritten")
+
+SENSE_CODE(0x1800, "Recovered data with error correction applied")
+SENSE_CODE(0x1801, "Recovered data with error corr. & retries applied")
+SENSE_CODE(0x1802, "Recovered data - data auto-reallocated")
+SENSE_CODE(0x1803, "Recovered data with CIRC")
+SENSE_CODE(0x1804, "Recovered data with L-EC")
+SENSE_CODE(0x1805, "Recovered data - recommend reassignment")
+SENSE_CODE(0x1806, "Recovered data - recommend rewrite")
+SENSE_CODE(0x1807, "Recovered data with ECC - data rewritten")
+SENSE_CODE(0x1808, "Recovered data with linking")
+
+SENSE_CODE(0x1900, "Defect list error")
+SENSE_CODE(0x1901, "Defect list not available")
+SENSE_CODE(0x1902, "Defect list error in primary list")
+SENSE_CODE(0x1903, "Defect list error in grown list")
+
+SENSE_CODE(0x1A00, "Parameter list length error")
+
+SENSE_CODE(0x1B00, "Synchronous data transfer error")
+
+SENSE_CODE(0x1C00, "Defect list not found")
+SENSE_CODE(0x1C01, "Primary defect list not found")
+SENSE_CODE(0x1C02, "Grown defect list not found")
+
+SENSE_CODE(0x1D00, "Miscompare during verify operation")
+SENSE_CODE(0x1D01, "Miscompare verify of unmapped LBA")
+
+SENSE_CODE(0x1E00, "Recovered id with ECC correction")
+
+SENSE_CODE(0x1F00, "Partial defect list transfer")
+
+SENSE_CODE(0x2000, "Invalid command operation code")
+SENSE_CODE(0x2001, "Access denied - initiator pending-enrolled")
+SENSE_CODE(0x2002, "Access denied - no access rights")
+SENSE_CODE(0x2003, "Access denied - invalid mgmt id key")
+SENSE_CODE(0x2004, "Illegal command while in write capable state")
+SENSE_CODE(0x2005, "Obsolete")
+SENSE_CODE(0x2006, "Illegal command while in explicit address mode")
+SENSE_CODE(0x2007, "Illegal command while in implicit address mode")
+SENSE_CODE(0x2008, "Access denied - enrollment conflict")
+SENSE_CODE(0x2009, "Access denied - invalid LU identifier")
+SENSE_CODE(0x200A, "Access denied - invalid proxy token")
+SENSE_CODE(0x200B, "Access denied - ACL LUN conflict")
+SENSE_CODE(0x200C, "Illegal command when not in append-only mode")
+
+SENSE_CODE(0x2100, "Logical block address out of range")
+SENSE_CODE(0x2101, "Invalid element address")
+SENSE_CODE(0x2102, "Invalid address for write")
+SENSE_CODE(0x2103, "Invalid write crossing layer jump")
+SENSE_CODE(0x2104, "Unaligned write command")
+SENSE_CODE(0x2105, "Write boundary violation")
+SENSE_CODE(0x2106, "Attempt to read invalid data")
+SENSE_CODE(0x2107, "Read boundary violation")
+
+SENSE_CODE(0x2200, "Illegal function (use 20 00, 24 00, or 26 00)")
+
+SENSE_CODE(0x2300, "Invalid token operation, cause not reportable")
+SENSE_CODE(0x2301, "Invalid token operation, unsupported token type")
+SENSE_CODE(0x2302, "Invalid token operation, remote token usage not supported")
+SENSE_CODE(0x2303, "Invalid token operation, remote rod token creation not supported")
+SENSE_CODE(0x2304, "Invalid token operation, token unknown")
+SENSE_CODE(0x2305, "Invalid token operation, token corrupt")
+SENSE_CODE(0x2306, "Invalid token operation, token revoked")
+SENSE_CODE(0x2307, "Invalid token operation, token expired")
+SENSE_CODE(0x2308, "Invalid token operation, token cancelled")
+SENSE_CODE(0x2309, "Invalid token operation, token deleted")
+SENSE_CODE(0x230A, "Invalid token operation, invalid token length")
+
+SENSE_CODE(0x2400, "Invalid field in cdb")
+SENSE_CODE(0x2401, "CDB decryption error")
+SENSE_CODE(0x2402, "Obsolete")
+SENSE_CODE(0x2403, "Obsolete")
+SENSE_CODE(0x2404, "Security audit value frozen")
+SENSE_CODE(0x2405, "Security working key frozen")
+SENSE_CODE(0x2406, "Nonce not unique")
+SENSE_CODE(0x2407, "Nonce timestamp out of range")
+SENSE_CODE(0x2408, "Invalid XCDB")
+
+SENSE_CODE(0x2500, "Logical unit not supported")
+
+SENSE_CODE(0x2600, "Invalid field in parameter list")
+SENSE_CODE(0x2601, "Parameter not supported")
+SENSE_CODE(0x2602, "Parameter value invalid")
+SENSE_CODE(0x2603, "Threshold parameters not supported")
+SENSE_CODE(0x2604, "Invalid release of persistent reservation")
+SENSE_CODE(0x2605, "Data decryption error")
+SENSE_CODE(0x2606, "Too many target descriptors")
+SENSE_CODE(0x2607, "Unsupported target descriptor type code")
+SENSE_CODE(0x2608, "Too many segment descriptors")
+SENSE_CODE(0x2609, "Unsupported segment descriptor type code")
+SENSE_CODE(0x260A, "Unexpected inexact segment")
+SENSE_CODE(0x260B, "Inline data length exceeded")
+SENSE_CODE(0x260C, "Invalid operation for copy source or destination")
+SENSE_CODE(0x260D, "Copy segment granularity violation")
+SENSE_CODE(0x260E, "Invalid parameter while port is enabled")
+SENSE_CODE(0x260F, "Invalid data-out buffer integrity check value")
+SENSE_CODE(0x2610, "Data decryption key fail limit reached")
+SENSE_CODE(0x2611, "Incomplete key-associated data set")
+SENSE_CODE(0x2612, "Vendor specific key reference not found")
+
+SENSE_CODE(0x2700, "Write protected")
+SENSE_CODE(0x2701, "Hardware write protected")
+SENSE_CODE(0x2702, "Logical unit software write protected")
+SENSE_CODE(0x2703, "Associated write protect")
+SENSE_CODE(0x2704, "Persistent write protect")
+SENSE_CODE(0x2705, "Permanent write protect")
+SENSE_CODE(0x2706, "Conditional write protect")
+SENSE_CODE(0x2707, "Space allocation failed write protect")
+SENSE_CODE(0x2708, "Zone is read only")
+
+SENSE_CODE(0x2800, "Not ready to ready change, medium may have changed")
+SENSE_CODE(0x2801, "Import or export element accessed")
+SENSE_CODE(0x2802, "Format-layer may have changed")
+SENSE_CODE(0x2803, "Import/export element accessed, medium changed")
+
+SENSE_CODE(0x2900, "Power on, reset, or bus device reset occurred")
+SENSE_CODE(0x2901, "Power on occurred")
+SENSE_CODE(0x2902, "Scsi bus reset occurred")
+SENSE_CODE(0x2903, "Bus device reset function occurred")
+SENSE_CODE(0x2904, "Device internal reset")
+SENSE_CODE(0x2905, "Transceiver mode changed to single-ended")
+SENSE_CODE(0x2906, "Transceiver mode changed to lvd")
+SENSE_CODE(0x2907, "I_T nexus loss occurred")
+
+SENSE_CODE(0x2A00, "Parameters changed")
+SENSE_CODE(0x2A01, "Mode parameters changed")
+SENSE_CODE(0x2A02, "Log parameters changed")
+SENSE_CODE(0x2A03, "Reservations preempted")
+SENSE_CODE(0x2A04, "Reservations released")
+SENSE_CODE(0x2A05, "Registrations preempted")
+SENSE_CODE(0x2A06, "Asymmetric access state changed")
+SENSE_CODE(0x2A07, "Implicit asymmetric access state transition failed")
+SENSE_CODE(0x2A08, "Priority changed")
+SENSE_CODE(0x2A09, "Capacity data has changed")
+SENSE_CODE(0x2A0A, "Error history I_T nexus cleared")
+SENSE_CODE(0x2A0B, "Error history snapshot released")
+SENSE_CODE(0x2A0C, "Error recovery attributes have changed")
+SENSE_CODE(0x2A0D, "Data encryption capabilities changed")
+SENSE_CODE(0x2A10, "Timestamp changed")
+SENSE_CODE(0x2A11, "Data encryption parameters changed by another i_t nexus")
+SENSE_CODE(0x2A12, "Data encryption parameters changed by vendor specific event")
+SENSE_CODE(0x2A13, "Data encryption key instance counter has changed")
+SENSE_CODE(0x2A14, "SA creation capabilities data has changed")
+SENSE_CODE(0x2A15, "Medium removal prevention preempted")
+
+SENSE_CODE(0x2B00, "Copy cannot execute since host cannot disconnect")
+
+SENSE_CODE(0x2C00, "Command sequence error")
+SENSE_CODE(0x2C01, "Too many windows specified")
+SENSE_CODE(0x2C02, "Invalid combination of windows specified")
+SENSE_CODE(0x2C03, "Current program area is not empty")
+SENSE_CODE(0x2C04, "Current program area is empty")
+SENSE_CODE(0x2C05, "Illegal power condition request")
+SENSE_CODE(0x2C06, "Persistent prevent conflict")
+SENSE_CODE(0x2C07, "Previous busy status")
+SENSE_CODE(0x2C08, "Previous task set full status")
+SENSE_CODE(0x2C09, "Previous reservation conflict status")
+SENSE_CODE(0x2C0A, "Partition or collection contains user objects")
+SENSE_CODE(0x2C0B, "Not reserved")
+SENSE_CODE(0x2C0C, "Orwrite generation does not match")
+SENSE_CODE(0x2C0D, "Reset write pointer not allowed")
+SENSE_CODE(0x2C0E, "Zone is offline")
+
+SENSE_CODE(0x2D00, "Overwrite error on update in place")
+
+SENSE_CODE(0x2E00, "Insufficient time for operation")
+SENSE_CODE(0x2E01, "Command timeout before processing")
+SENSE_CODE(0x2E02, "Command timeout during processing")
+SENSE_CODE(0x2E03, "Command timeout during processing due to error recovery")
+
+SENSE_CODE(0x2F00, "Commands cleared by another initiator")
+SENSE_CODE(0x2F01, "Commands cleared by power loss notification")
+SENSE_CODE(0x2F02, "Commands cleared by device server")
+SENSE_CODE(0x2F03, "Some commands cleared by queuing layer event")
+
+SENSE_CODE(0x3000, "Incompatible medium installed")
+SENSE_CODE(0x3001, "Cannot read medium - unknown format")
+SENSE_CODE(0x3002, "Cannot read medium - incompatible format")
+SENSE_CODE(0x3003, "Cleaning cartridge installed")
+SENSE_CODE(0x3004, "Cannot write medium - unknown format")
+SENSE_CODE(0x3005, "Cannot write medium - incompatible format")
+SENSE_CODE(0x3006, "Cannot format medium - incompatible medium")
+SENSE_CODE(0x3007, "Cleaning failure")
+SENSE_CODE(0x3008, "Cannot write - application code mismatch")
+SENSE_CODE(0x3009, "Current session not fixated for append")
+SENSE_CODE(0x300A, "Cleaning request rejected")
+SENSE_CODE(0x300C, "WORM medium - overwrite attempted")
+SENSE_CODE(0x300D, "WORM medium - integrity check")
+SENSE_CODE(0x3010, "Medium not formatted")
+SENSE_CODE(0x3011, "Incompatible volume type")
+SENSE_CODE(0x3012, "Incompatible volume qualifier")
+SENSE_CODE(0x3013, "Cleaning volume expired")
+
+SENSE_CODE(0x3100, "Medium format corrupted")
+SENSE_CODE(0x3101, "Format command failed")
+SENSE_CODE(0x3102, "Zoned formatting failed due to spare linking")
+SENSE_CODE(0x3103, "Sanitize command failed")
+
+SENSE_CODE(0x3200, "No defect spare location available")
+SENSE_CODE(0x3201, "Defect list update failure")
+
+SENSE_CODE(0x3300, "Tape length error")
+
+SENSE_CODE(0x3400, "Enclosure failure")
+
+SENSE_CODE(0x3500, "Enclosure services failure")
+SENSE_CODE(0x3501, "Unsupported enclosure function")
+SENSE_CODE(0x3502, "Enclosure services unavailable")
+SENSE_CODE(0x3503, "Enclosure services transfer failure")
+SENSE_CODE(0x3504, "Enclosure services transfer refused")
+SENSE_CODE(0x3505, "Enclosure services checksum error")
+
+SENSE_CODE(0x3600, "Ribbon, ink, or toner failure")
+
+SENSE_CODE(0x3700, "Rounded parameter")
+
+SENSE_CODE(0x3800, "Event status notification")
+SENSE_CODE(0x3802, "Esn - power management class event")
+SENSE_CODE(0x3804, "Esn - media class event")
+SENSE_CODE(0x3806, "Esn - device busy class event")
+SENSE_CODE(0x3807, "Thin Provisioning soft threshold reached")
+
+SENSE_CODE(0x3900, "Saving parameters not supported")
+
+SENSE_CODE(0x3A00, "Medium not present")
+SENSE_CODE(0x3A01, "Medium not present - tray closed")
+SENSE_CODE(0x3A02, "Medium not present - tray open")
+SENSE_CODE(0x3A03, "Medium not present - loadable")
+SENSE_CODE(0x3A04, "Medium not present - medium auxiliary memory accessible")
+
+SENSE_CODE(0x3B00, "Sequential positioning error")
+SENSE_CODE(0x3B01, "Tape position error at beginning-of-medium")
+SENSE_CODE(0x3B02, "Tape position error at end-of-medium")
+SENSE_CODE(0x3B03, "Tape or electronic vertical forms unit not ready")
+SENSE_CODE(0x3B04, "Slew failure")
+SENSE_CODE(0x3B05, "Paper jam")
+SENSE_CODE(0x3B06, "Failed to sense top-of-form")
+SENSE_CODE(0x3B07, "Failed to sense bottom-of-form")
+SENSE_CODE(0x3B08, "Reposition error")
+SENSE_CODE(0x3B09, "Read past end of medium")
+SENSE_CODE(0x3B0A, "Read past beginning of medium")
+SENSE_CODE(0x3B0B, "Position past end of medium")
+SENSE_CODE(0x3B0C, "Position past beginning of medium")
+SENSE_CODE(0x3B0D, "Medium destination element full")
+SENSE_CODE(0x3B0E, "Medium source element empty")
+SENSE_CODE(0x3B0F, "End of medium reached")
+SENSE_CODE(0x3B11, "Medium magazine not accessible")
+SENSE_CODE(0x3B12, "Medium magazine removed")
+SENSE_CODE(0x3B13, "Medium magazine inserted")
+SENSE_CODE(0x3B14, "Medium magazine locked")
+SENSE_CODE(0x3B15, "Medium magazine unlocked")
+SENSE_CODE(0x3B16, "Mechanical positioning or changer error")
+SENSE_CODE(0x3B17, "Read past end of user object")
+SENSE_CODE(0x3B18, "Element disabled")
+SENSE_CODE(0x3B19, "Element enabled")
+SENSE_CODE(0x3B1A, "Data transfer device removed")
+SENSE_CODE(0x3B1B, "Data transfer device inserted")
+SENSE_CODE(0x3B1C, "Too many logical objects on partition to support operation")
+
+SENSE_CODE(0x3D00, "Invalid bits in identify message")
+
+SENSE_CODE(0x3E00, "Logical unit has not self-configured yet")
+SENSE_CODE(0x3E01, "Logical unit failure")
+SENSE_CODE(0x3E02, "Timeout on logical unit")
+SENSE_CODE(0x3E03, "Logical unit failed self-test")
+SENSE_CODE(0x3E04, "Logical unit unable to update self-test log")
+
+SENSE_CODE(0x3F00, "Target operating conditions have changed")
+SENSE_CODE(0x3F01, "Microcode has been changed")
+SENSE_CODE(0x3F02, "Changed operating definition")
+SENSE_CODE(0x3F03, "Inquiry data has changed")
+SENSE_CODE(0x3F04, "Component device attached")
+SENSE_CODE(0x3F05, "Device identifier changed")
+SENSE_CODE(0x3F06, "Redundancy group created or modified")
+SENSE_CODE(0x3F07, "Redundancy group deleted")
+SENSE_CODE(0x3F08, "Spare created or modified")
+SENSE_CODE(0x3F09, "Spare deleted")
+SENSE_CODE(0x3F0A, "Volume set created or modified")
+SENSE_CODE(0x3F0B, "Volume set deleted")
+SENSE_CODE(0x3F0C, "Volume set deassigned")
+SENSE_CODE(0x3F0D, "Volume set reassigned")
+SENSE_CODE(0x3F0E, "Reported luns data has changed")
+SENSE_CODE(0x3F0F, "Echo buffer overwritten")
+SENSE_CODE(0x3F10, "Medium loadable")
+SENSE_CODE(0x3F11, "Medium auxiliary memory accessible")
+SENSE_CODE(0x3F12, "iSCSI IP address added")
+SENSE_CODE(0x3F13, "iSCSI IP address removed")
+SENSE_CODE(0x3F14, "iSCSI IP address changed")
+SENSE_CODE(0x3F15, "Inspect referrals sense descriptors")
+SENSE_CODE(0x3F16, "Microcode has been changed without reset")
+/*
+ * SENSE_CODE(0x40NN, "Ram failure")
+ * SENSE_CODE(0x40NN, "Diagnostic failure on component nn")
+ * SENSE_CODE(0x41NN, "Data path failure")
+ * SENSE_CODE(0x42NN, "Power-on or self-test failure")
+ */
+SENSE_CODE(0x4300, "Message error")
+
+SENSE_CODE(0x4400, "Internal target failure")
+SENSE_CODE(0x4401, "Persistent reservation information lost")
+SENSE_CODE(0x4471, "ATA device failed set features")
+
+SENSE_CODE(0x4500, "Select or reselect failure")
+
+SENSE_CODE(0x4600, "Unsuccessful soft reset")
+
+SENSE_CODE(0x4700, "Scsi parity error")
+SENSE_CODE(0x4701, "Data phase CRC error detected")
+SENSE_CODE(0x4702, "Scsi parity error detected during st data phase")
+SENSE_CODE(0x4703, "Information unit iuCRC error detected")
+SENSE_CODE(0x4704, "Asynchronous information protection error detected")
+SENSE_CODE(0x4705, "Protocol service CRC error")
+SENSE_CODE(0x4706, "Phy test function in progress")
+SENSE_CODE(0x477f, "Some commands cleared by iSCSI Protocol event")
+
+SENSE_CODE(0x4800, "Initiator detected error message received")
+
+SENSE_CODE(0x4900, "Invalid message error")
+
+SENSE_CODE(0x4A00, "Command phase error")
+
+SENSE_CODE(0x4B00, "Data phase error")
+SENSE_CODE(0x4B01, "Invalid target port transfer tag received")
+SENSE_CODE(0x4B02, "Too much write data")
+SENSE_CODE(0x4B03, "Ack/nak timeout")
+SENSE_CODE(0x4B04, "Nak received")
+SENSE_CODE(0x4B05, "Data offset error")
+SENSE_CODE(0x4B06, "Initiator response timeout")
+SENSE_CODE(0x4B07, "Connection lost")
+SENSE_CODE(0x4B08, "Data-in buffer overflow - data buffer size")
+SENSE_CODE(0x4B09, "Data-in buffer overflow - data buffer descriptor area")
+SENSE_CODE(0x4B0A, "Data-in buffer error")
+SENSE_CODE(0x4B0B, "Data-out buffer overflow - data buffer size")
+SENSE_CODE(0x4B0C, "Data-out buffer overflow - data buffer descriptor area")
+SENSE_CODE(0x4B0D, "Data-out buffer error")
+SENSE_CODE(0x4B0E, "PCIe fabric error")
+SENSE_CODE(0x4B0F, "PCIe completion timeout")
+SENSE_CODE(0x4B10, "PCIe completer abort")
+SENSE_CODE(0x4B11, "PCIe poisoned tlp received")
+SENSE_CODE(0x4B12, "PCIe eCRC check failed")
+SENSE_CODE(0x4B13, "PCIe unsupported request")
+SENSE_CODE(0x4B14, "PCIe acs violation")
+SENSE_CODE(0x4B15, "PCIe tlp prefix blocked")
+
+SENSE_CODE(0x4C00, "Logical unit failed self-configuration")
+/*
+ * SENSE_CODE(0x4DNN, "Tagged overlapped commands (nn = queue tag)")
+ */
+SENSE_CODE(0x4E00, "Overlapped commands attempted")
+
+SENSE_CODE(0x5000, "Write append error")
+SENSE_CODE(0x5001, "Write append position error")
+SENSE_CODE(0x5002, "Position error related to timing")
+
+SENSE_CODE(0x5100, "Erase failure")
+SENSE_CODE(0x5101, "Erase failure - incomplete erase operation detected")
+
+SENSE_CODE(0x5200, "Cartridge fault")
+
+SENSE_CODE(0x5300, "Media load or eject failed")
+SENSE_CODE(0x5301, "Unload tape failure")
+SENSE_CODE(0x5302, "Medium removal prevented")
+SENSE_CODE(0x5303, "Medium removal prevented by data transfer element")
+SENSE_CODE(0x5304, "Medium thread or unthread failure")
+SENSE_CODE(0x5305, "Volume identifier invalid")
+SENSE_CODE(0x5306, "Volume identifier missing")
+SENSE_CODE(0x5307, "Duplicate volume identifier")
+SENSE_CODE(0x5308, "Element status unknown")
+SENSE_CODE(0x5309, "Data transfer device error - load failed")
+SENSE_CODE(0x530a, "Data transfer device error - unload failed")
+SENSE_CODE(0x530b, "Data transfer device error - unload missing")
+SENSE_CODE(0x530c, "Data transfer device error - eject failed")
+SENSE_CODE(0x530d, "Data transfer device error - library communication failed")
+
+SENSE_CODE(0x5400, "Scsi to host system interface failure")
+
+SENSE_CODE(0x5500, "System resource failure")
+SENSE_CODE(0x5501, "System buffer full")
+SENSE_CODE(0x5502, "Insufficient reservation resources")
+SENSE_CODE(0x5503, "Insufficient resources")
+SENSE_CODE(0x5504, "Insufficient registration resources")
+SENSE_CODE(0x5505, "Insufficient access control resources")
+SENSE_CODE(0x5506, "Auxiliary memory out of space")
+SENSE_CODE(0x5507, "Quota error")
+SENSE_CODE(0x5508, "Maximum number of supplemental decryption keys exceeded")
+SENSE_CODE(0x5509, "Medium auxiliary memory not accessible")
+SENSE_CODE(0x550A, "Data currently unavailable")
+SENSE_CODE(0x550B, "Insufficient power for operation")
+SENSE_CODE(0x550C, "Insufficient resources to create rod")
+SENSE_CODE(0x550D, "Insufficient resources to create rod token")
+SENSE_CODE(0x550E, "Insufficient zone resources")
+
+SENSE_CODE(0x5700, "Unable to recover table-of-contents")
+
+SENSE_CODE(0x5800, "Generation does not exist")
+
+SENSE_CODE(0x5900, "Updated block read")
+
+SENSE_CODE(0x5A00, "Operator request or state change input")
+SENSE_CODE(0x5A01, "Operator medium removal request")
+SENSE_CODE(0x5A02, "Operator selected write protect")
+SENSE_CODE(0x5A03, "Operator selected write permit")
+
+SENSE_CODE(0x5B00, "Log exception")
+SENSE_CODE(0x5B01, "Threshold condition met")
+SENSE_CODE(0x5B02, "Log counter at maximum")
+SENSE_CODE(0x5B03, "Log list codes exhausted")
+
+SENSE_CODE(0x5C00, "Rpl status change")
+SENSE_CODE(0x5C01, "Spindles synchronized")
+SENSE_CODE(0x5C02, "Spindles not synchronized")
+
+SENSE_CODE(0x5D00, "Failure prediction threshold exceeded")
+SENSE_CODE(0x5D01, "Media failure prediction threshold exceeded")
+SENSE_CODE(0x5D02, "Logical unit failure prediction threshold exceeded")
+SENSE_CODE(0x5D03, "Spare area exhaustion prediction threshold exceeded")
+SENSE_CODE(0x5D10, "Hardware impending failure general hard drive failure")
+SENSE_CODE(0x5D11, "Hardware impending failure drive error rate too high")
+SENSE_CODE(0x5D12, "Hardware impending failure data error rate too high")
+SENSE_CODE(0x5D13, "Hardware impending failure seek error rate too high")
+SENSE_CODE(0x5D14, "Hardware impending failure too many block reassigns")
+SENSE_CODE(0x5D15, "Hardware impending failure access times too high")
+SENSE_CODE(0x5D16, "Hardware impending failure start unit times too high")
+SENSE_CODE(0x5D17, "Hardware impending failure channel parametrics")
+SENSE_CODE(0x5D18, "Hardware impending failure controller detected")
+SENSE_CODE(0x5D19, "Hardware impending failure throughput performance")
+SENSE_CODE(0x5D1A, "Hardware impending failure seek time performance")
+SENSE_CODE(0x5D1B, "Hardware impending failure spin-up retry count")
+SENSE_CODE(0x5D1C, "Hardware impending failure drive calibration retry count")
+SENSE_CODE(0x5D20, "Controller impending failure general hard drive failure")
+SENSE_CODE(0x5D21, "Controller impending failure drive error rate too high")
+SENSE_CODE(0x5D22, "Controller impending failure data error rate too high")
+SENSE_CODE(0x5D23, "Controller impending failure seek error rate too high")
+SENSE_CODE(0x5D24, "Controller impending failure too many block reassigns")
+SENSE_CODE(0x5D25, "Controller impending failure access times too high")
+SENSE_CODE(0x5D26, "Controller impending failure start unit times too high")
+SENSE_CODE(0x5D27, "Controller impending failure channel parametrics")
+SENSE_CODE(0x5D28, "Controller impending failure controller detected")
+SENSE_CODE(0x5D29, "Controller impending failure throughput performance")
+SENSE_CODE(0x5D2A, "Controller impending failure seek time performance")
+SENSE_CODE(0x5D2B, "Controller impending failure spin-up retry count")
+SENSE_CODE(0x5D2C, "Controller impending failure drive calibration retry count")
+SENSE_CODE(0x5D30, "Data channel impending failure general hard drive failure")
+SENSE_CODE(0x5D31, "Data channel impending failure drive error rate too high")
+SENSE_CODE(0x5D32, "Data channel impending failure data error rate too high")
+SENSE_CODE(0x5D33, "Data channel impending failure seek error rate too high")
+SENSE_CODE(0x5D34, "Data channel impending failure too many block reassigns")
+SENSE_CODE(0x5D35, "Data channel impending failure access times too high")
+SENSE_CODE(0x5D36, "Data channel impending failure start unit times too high")
+SENSE_CODE(0x5D37, "Data channel impending failure channel parametrics")
+SENSE_CODE(0x5D38, "Data channel impending failure controller detected")
+SENSE_CODE(0x5D39, "Data channel impending failure throughput performance")
+SENSE_CODE(0x5D3A, "Data channel impending failure seek time performance")
+SENSE_CODE(0x5D3B, "Data channel impending failure spin-up retry count")
+SENSE_CODE(0x5D3C, "Data channel impending failure drive calibration retry count")
+SENSE_CODE(0x5D40, "Servo impending failure general hard drive failure")
+SENSE_CODE(0x5D41, "Servo impending failure drive error rate too high")
+SENSE_CODE(0x5D42, "Servo impending failure data error rate too high")
+SENSE_CODE(0x5D43, "Servo impending failure seek error rate too high")
+SENSE_CODE(0x5D44, "Servo impending failure too many block reassigns")
+SENSE_CODE(0x5D45, "Servo impending failure access times too high")
+SENSE_CODE(0x5D46, "Servo impending failure start unit times too high")
+SENSE_CODE(0x5D47, "Servo impending failure channel parametrics")
+SENSE_CODE(0x5D48, "Servo impending failure controller detected")
+SENSE_CODE(0x5D49, "Servo impending failure throughput performance")
+SENSE_CODE(0x5D4A, "Servo impending failure seek time performance")
+SENSE_CODE(0x5D4B, "Servo impending failure spin-up retry count")
+SENSE_CODE(0x5D4C, "Servo impending failure drive calibration retry count")
+SENSE_CODE(0x5D50, "Spindle impending failure general hard drive failure")
+SENSE_CODE(0x5D51, "Spindle impending failure drive error rate too high")
+SENSE_CODE(0x5D52, "Spindle impending failure data error rate too high")
+SENSE_CODE(0x5D53, "Spindle impending failure seek error rate too high")
+SENSE_CODE(0x5D54, "Spindle impending failure too many block reassigns")
+SENSE_CODE(0x5D55, "Spindle impending failure access times too high")
+SENSE_CODE(0x5D56, "Spindle impending failure start unit times too high")
+SENSE_CODE(0x5D57, "Spindle impending failure channel parametrics")
+SENSE_CODE(0x5D58, "Spindle impending failure controller detected")
+SENSE_CODE(0x5D59, "Spindle impending failure throughput performance")
+SENSE_CODE(0x5D5A, "Spindle impending failure seek time performance")
+SENSE_CODE(0x5D5B, "Spindle impending failure spin-up retry count")
+SENSE_CODE(0x5D5C, "Spindle impending failure drive calibration retry count")
+SENSE_CODE(0x5D60, "Firmware impending failure general hard drive failure")
+SENSE_CODE(0x5D61, "Firmware impending failure drive error rate too high")
+SENSE_CODE(0x5D62, "Firmware impending failure data error rate too high")
+SENSE_CODE(0x5D63, "Firmware impending failure seek error rate too high")
+SENSE_CODE(0x5D64, "Firmware impending failure too many block reassigns")
+SENSE_CODE(0x5D65, "Firmware impending failure access times too high")
+SENSE_CODE(0x5D66, "Firmware impending failure start unit times too high")
+SENSE_CODE(0x5D67, "Firmware impending failure channel parametrics")
+SENSE_CODE(0x5D68, "Firmware impending failure controller detected")
+SENSE_CODE(0x5D69, "Firmware impending failure throughput performance")
+SENSE_CODE(0x5D6A, "Firmware impending failure seek time performance")
+SENSE_CODE(0x5D6B, "Firmware impending failure spin-up retry count")
+SENSE_CODE(0x5D6C, "Firmware impending failure drive calibration retry count")
+SENSE_CODE(0x5DFF, "Failure prediction threshold exceeded (false)")
+
+SENSE_CODE(0x5E00, "Low power condition on")
+SENSE_CODE(0x5E01, "Idle condition activated by timer")
+SENSE_CODE(0x5E02, "Standby condition activated by timer")
+SENSE_CODE(0x5E03, "Idle condition activated by command")
+SENSE_CODE(0x5E04, "Standby condition activated by command")
+SENSE_CODE(0x5E05, "Idle_b condition activated by timer")
+SENSE_CODE(0x5E06, "Idle_b condition activated by command")
+SENSE_CODE(0x5E07, "Idle_c condition activated by timer")
+SENSE_CODE(0x5E08, "Idle_c condition activated by command")
+SENSE_CODE(0x5E09, "Standby_y condition activated by timer")
+SENSE_CODE(0x5E0A, "Standby_y condition activated by command")
+SENSE_CODE(0x5E41, "Power state change to active")
+SENSE_CODE(0x5E42, "Power state change to idle")
+SENSE_CODE(0x5E43, "Power state change to standby")
+SENSE_CODE(0x5E45, "Power state change to sleep")
+SENSE_CODE(0x5E47, "Power state change to device control")
+
+SENSE_CODE(0x6000, "Lamp failure")
+
+SENSE_CODE(0x6100, "Video acquisition error")
+SENSE_CODE(0x6101, "Unable to acquire video")
+SENSE_CODE(0x6102, "Out of focus")
+
+SENSE_CODE(0x6200, "Scan head positioning error")
+
+SENSE_CODE(0x6300, "End of user area encountered on this track")
+SENSE_CODE(0x6301, "Packet does not fit in available space")
+
+SENSE_CODE(0x6400, "Illegal mode for this track")
+SENSE_CODE(0x6401, "Invalid packet size")
+
+SENSE_CODE(0x6500, "Voltage fault")
+
+SENSE_CODE(0x6600, "Automatic document feeder cover up")
+SENSE_CODE(0x6601, "Automatic document feeder lift up")
+SENSE_CODE(0x6602, "Document jam in automatic document feeder")
+SENSE_CODE(0x6603, "Document miss feed automatic in document feeder")
+
+SENSE_CODE(0x6700, "Configuration failure")
+SENSE_CODE(0x6701, "Configuration of incapable logical units failed")
+SENSE_CODE(0x6702, "Add logical unit failed")
+SENSE_CODE(0x6703, "Modification of logical unit failed")
+SENSE_CODE(0x6704, "Exchange of logical unit failed")
+SENSE_CODE(0x6705, "Remove of logical unit failed")
+SENSE_CODE(0x6706, "Attachment of logical unit failed")
+SENSE_CODE(0x6707, "Creation of logical unit failed")
+SENSE_CODE(0x6708, "Assign failure occurred")
+SENSE_CODE(0x6709, "Multiply assigned logical unit")
+SENSE_CODE(0x670A, "Set target port groups command failed")
+SENSE_CODE(0x670B, "ATA device feature not enabled")
+
+SENSE_CODE(0x6800, "Logical unit not configured")
+SENSE_CODE(0x6801, "Subsidiary logical unit not configured")
+
+SENSE_CODE(0x6900, "Data loss on logical unit")
+SENSE_CODE(0x6901, "Multiple logical unit failures")
+SENSE_CODE(0x6902, "Parity/data mismatch")
+
+SENSE_CODE(0x6A00, "Informational, refer to log")
+
+SENSE_CODE(0x6B00, "State change has occurred")
+SENSE_CODE(0x6B01, "Redundancy level got better")
+SENSE_CODE(0x6B02, "Redundancy level got worse")
+
+SENSE_CODE(0x6C00, "Rebuild failure occurred")
+
+SENSE_CODE(0x6D00, "Recalculate failure occurred")
+
+SENSE_CODE(0x6E00, "Command to logical unit failed")
+
+SENSE_CODE(0x6F00, "Copy protection key exchange failure - authentication failure")
+SENSE_CODE(0x6F01, "Copy protection key exchange failure - key not present")
+SENSE_CODE(0x6F02, "Copy protection key exchange failure - key not established")
+SENSE_CODE(0x6F03, "Read of scrambled sector without authentication")
+SENSE_CODE(0x6F04, "Media region code is mismatched to logical unit region")
+SENSE_CODE(0x6F05, "Drive region must be permanent/region reset count error")
+SENSE_CODE(0x6F06, "Insufficient block count for binding nonce recording")
+SENSE_CODE(0x6F07, "Conflict in binding nonce recording")
+/*
+ * SENSE_CODE(0x70NN, "Decompression exception short algorithm id of nn")
+ */
+SENSE_CODE(0x7100, "Decompression exception long algorithm id")
+
+SENSE_CODE(0x7200, "Session fixation error")
+SENSE_CODE(0x7201, "Session fixation error writing lead-in")
+SENSE_CODE(0x7202, "Session fixation error writing lead-out")
+SENSE_CODE(0x7203, "Session fixation error - incomplete track in session")
+SENSE_CODE(0x7204, "Empty or partially written reserved track")
+SENSE_CODE(0x7205, "No more track reservations allowed")
+SENSE_CODE(0x7206, "RMZ extension is not allowed")
+SENSE_CODE(0x7207, "No more test zone extensions are allowed")
+
+SENSE_CODE(0x7300, "Cd control error")
+SENSE_CODE(0x7301, "Power calibration area almost full")
+SENSE_CODE(0x7302, "Power calibration area is full")
+SENSE_CODE(0x7303, "Power calibration area error")
+SENSE_CODE(0x7304, "Program memory area update failure")
+SENSE_CODE(0x7305, "Program memory area is full")
+SENSE_CODE(0x7306, "RMA/PMA is almost full")
+SENSE_CODE(0x7310, "Current power calibration area almost full")
+SENSE_CODE(0x7311, "Current power calibration area is full")
+SENSE_CODE(0x7317, "RDZ is full")
+
+SENSE_CODE(0x7400, "Security error")
+SENSE_CODE(0x7401, "Unable to decrypt data")
+SENSE_CODE(0x7402, "Unencrypted data encountered while decrypting")
+SENSE_CODE(0x7403, "Incorrect data encryption key")
+SENSE_CODE(0x7404, "Cryptographic integrity validation failed")
+SENSE_CODE(0x7405, "Error decrypting data")
+SENSE_CODE(0x7406, "Unknown signature verification key")
+SENSE_CODE(0x7407, "Encryption parameters not useable")
+SENSE_CODE(0x7408, "Digital signature validation failure")
+SENSE_CODE(0x7409, "Encryption mode mismatch on read")
+SENSE_CODE(0x740A, "Encrypted block not raw read enabled")
+SENSE_CODE(0x740B, "Incorrect Encryption parameters")
+SENSE_CODE(0x740C, "Unable to decrypt parameter list")
+SENSE_CODE(0x740D, "Encryption algorithm disabled")
+SENSE_CODE(0x7410, "SA creation parameter value invalid")
+SENSE_CODE(0x7411, "SA creation parameter value rejected")
+SENSE_CODE(0x7412, "Invalid SA usage")
+SENSE_CODE(0x7421, "Data Encryption configuration prevented")
+SENSE_CODE(0x7430, "SA creation parameter not supported")
+SENSE_CODE(0x7440, "Authentication failed")
+SENSE_CODE(0x7461, "External data encryption key manager access error")
+SENSE_CODE(0x7462, "External data encryption key manager error")
+SENSE_CODE(0x7463, "External data encryption key not found")
+SENSE_CODE(0x7464, "External data encryption request not authorized")
+SENSE_CODE(0x746E, "External data encryption control timeout")
+SENSE_CODE(0x746F, "External data encryption control error")
+SENSE_CODE(0x7471, "Logical unit access not authorized")
+SENSE_CODE(0x7479, "Security conflict in translated device")
diff --git a/drivers/scsi/snic/snic.h b/drivers/scsi/snic/snic.h
index d7f5ba6ba84c..8ed778d4dbb9 100644
--- a/drivers/scsi/snic/snic.h
+++ b/drivers/scsi/snic/snic.h
@@ -95,6 +95,8 @@
#define SNIC_DEV_RST_NOTSUP BIT(25)
#define SNIC_SCSI_CLEANUP BIT(26)
#define SNIC_HOST_RESET_ISSUED BIT(27)
+#define SNIC_HOST_RESET_CMD_TERM \
+ (SNIC_DEV_RST_NOTSUP | SNIC_SCSI_CLEANUP | SNIC_HOST_RESET_ISSUED)
#define SNIC_ABTS_TIMEOUT 30000 /* msec */
#define SNIC_LUN_RESET_TIMEOUT 30000 /* msec */
@@ -216,9 +218,10 @@ enum snic_msix_intr_index {
SNIC_MSIX_INTR_MAX,
};
+#define SNIC_INTRHDLR_NAMSZ (2 * IFNAMSIZ)
struct snic_msix_entry {
int requested;
- char devname[IFNAMSIZ];
+ char devname[SNIC_INTRHDLR_NAMSZ];
irqreturn_t (*isr)(int, void *);
void *devid;
};
diff --git a/drivers/scsi/snic/snic_ctl.c b/drivers/scsi/snic/snic_ctl.c
index ab0e06b0b4ff..449b03f3bbd3 100644
--- a/drivers/scsi/snic/snic_ctl.c
+++ b/drivers/scsi/snic/snic_ctl.c
@@ -39,17 +39,15 @@ snic_handle_link(struct work_struct *work)
{
struct snic *snic = container_of(work, struct snic, link_work);
- if (snic->config.xpt_type != SNIC_DAS) {
- SNIC_HOST_INFO(snic->shost, "Link Event Received.\n");
- SNIC_ASSERT_NOT_IMPL(1);
-
+ if (snic->config.xpt_type == SNIC_DAS)
return;
- }
snic->link_status = svnic_dev_link_status(snic->vdev);
snic->link_down_cnt = svnic_dev_link_down_cnt(snic->vdev);
SNIC_HOST_INFO(snic->shost, "Link Event: Link %s.\n",
((snic->link_status) ? "Up" : "Down"));
+
+ SNIC_ASSERT_NOT_IMPL(1);
}
diff --git a/drivers/scsi/snic/snic_debugfs.c b/drivers/scsi/snic/snic_debugfs.c
index 1686f0196251..d30280326bde 100644
--- a/drivers/scsi/snic/snic_debugfs.c
+++ b/drivers/scsi/snic/snic_debugfs.c
@@ -264,12 +264,14 @@ snic_stats_show(struct seq_file *sfp, void *data)
"Aborts Fail : %lld\n"
"Aborts Driver Timeout : %lld\n"
"Abort FW Timeout : %lld\n"
- "Abort IO NOT Found : %lld\n",
+ "Abort IO NOT Found : %lld\n"
+ "Abort Queuing Failed : %lld\n",
(u64) atomic64_read(&stats->abts.num),
(u64) atomic64_read(&stats->abts.fail),
(u64) atomic64_read(&stats->abts.drv_tmo),
(u64) atomic64_read(&stats->abts.fw_tmo),
- (u64) atomic64_read(&stats->abts.io_not_found));
+ (u64) atomic64_read(&stats->abts.io_not_found),
+ (u64) atomic64_read(&stats->abts.q_fail));
/* Dump Reset Stats */
seq_printf(sfp,
@@ -316,7 +318,9 @@ snic_stats_show(struct seq_file *sfp, void *data)
seq_printf(sfp,
"Last ISR Time : %llu (%8lu.%8lu)\n"
"Last Ack Time : %llu (%8lu.%8lu)\n"
- "ISRs : %llu\n"
+ "Ack ISRs : %llu\n"
+ "IO Cmpl ISRs : %llu\n"
+ "Err Notify ISRs : %llu\n"
"Max CQ Entries : %lld\n"
"Data Count Mismatch : %lld\n"
"IOs w/ Timeout Status : %lld\n"
@@ -324,12 +328,17 @@ snic_stats_show(struct seq_file *sfp, void *data)
"IOs w/ SGL Invalid Stat : %lld\n"
"WQ Desc Alloc Fail : %lld\n"
"Queue Full : %lld\n"
+ "Queue Ramp Up : %lld\n"
+ "Queue Ramp Down : %lld\n"
+ "Queue Last Queue Depth : %lld\n"
"Target Not Ready : %lld\n",
(u64) stats->misc.last_isr_time,
last_isr_tms.tv_sec, last_isr_tms.tv_nsec,
(u64)stats->misc.last_ack_time,
last_ack_tms.tv_sec, last_ack_tms.tv_nsec,
- (u64) atomic64_read(&stats->misc.isr_cnt),
+ (u64) atomic64_read(&stats->misc.ack_isr_cnt),
+ (u64) atomic64_read(&stats->misc.cmpl_isr_cnt),
+ (u64) atomic64_read(&stats->misc.errnotify_isr_cnt),
(u64) atomic64_read(&stats->misc.max_cq_ents),
(u64) atomic64_read(&stats->misc.data_cnt_mismat),
(u64) atomic64_read(&stats->misc.io_tmo),
@@ -337,6 +346,9 @@ snic_stats_show(struct seq_file *sfp, void *data)
(u64) atomic64_read(&stats->misc.sgl_inval),
(u64) atomic64_read(&stats->misc.wq_alloc_fail),
(u64) atomic64_read(&stats->misc.qfull),
+ (u64) atomic64_read(&stats->misc.qsz_rampup),
+ (u64) atomic64_read(&stats->misc.qsz_rampdown),
+ (u64) atomic64_read(&stats->misc.last_qsz),
(u64) atomic64_read(&stats->misc.tgt_not_rdy));
return 0;
diff --git a/drivers/scsi/snic/snic_disc.c b/drivers/scsi/snic/snic_disc.c
index 5f6321759ad9..b0fefd67cac3 100644
--- a/drivers/scsi/snic/snic_disc.c
+++ b/drivers/scsi/snic/snic_disc.c
@@ -171,7 +171,7 @@ snic_scsi_scan_tgt(struct work_struct *work)
tgt->channel,
tgt->scsi_tgt_id,
SCAN_WILD_CARD,
- 1);
+ SCSI_SCAN_RESCAN);
spin_lock_irqsave(shost->host_lock, flags);
tgt->flags &= ~SNIC_TGT_SCAN_PENDING;
@@ -480,10 +480,21 @@ int
snic_disc_start(struct snic *snic)
{
struct snic_disc *disc = &snic->disc;
+ unsigned long flags;
int ret = 0;
SNIC_SCSI_DBG(snic->shost, "Discovery Start.\n");
+ spin_lock_irqsave(&snic->snic_lock, flags);
+ if (snic->in_remove) {
+ spin_unlock_irqrestore(&snic->snic_lock, flags);
+ SNIC_ERR("snic driver removal in progress ...\n");
+ ret = 0;
+
+ return ret;
+ }
+ spin_unlock_irqrestore(&snic->snic_lock, flags);
+
mutex_lock(&disc->mutex);
if (disc->state == SNIC_DISC_PENDING) {
disc->req_cnt++;
@@ -533,6 +544,8 @@ snic_tgt_del_all(struct snic *snic)
struct list_head *cur, *nxt;
unsigned long flags;
+ scsi_flush_work(snic->shost);
+
mutex_lock(&snic->disc.mutex);
spin_lock_irqsave(snic->shost->host_lock, flags);
@@ -545,7 +558,7 @@ snic_tgt_del_all(struct snic *snic)
tgt = NULL;
}
spin_unlock_irqrestore(snic->shost->host_lock, flags);
-
- scsi_flush_work(snic->shost);
mutex_unlock(&snic->disc.mutex);
+
+ flush_workqueue(snic_glob->event_q);
} /* end of snic_tgt_del_all */
diff --git a/drivers/scsi/snic/snic_fwint.h b/drivers/scsi/snic/snic_fwint.h
index 2cfaf2dc915f..c5f9e1917a8e 100644
--- a/drivers/scsi/snic/snic_fwint.h
+++ b/drivers/scsi/snic/snic_fwint.h
@@ -414,7 +414,7 @@ enum snic_ev_type {
/* Payload 88 bytes = 128 - 24 - 16 */
#define SNIC_HOST_REQ_PAYLOAD ((int)(SNIC_HOST_REQ_LEN - \
sizeof(struct snic_io_hdr) - \
- (2 * sizeof(u64))))
+ (2 * sizeof(u64)) - sizeof(ulong)))
/*
* snic_host_req: host -> firmware request
@@ -448,6 +448,8 @@ struct snic_host_req {
/* hba reset */
struct snic_hba_reset reset;
} u;
+
+ ulong req_pa;
}; /* end of snic_host_req structure */
diff --git a/drivers/scsi/snic/snic_io.c b/drivers/scsi/snic/snic_io.c
index 993db7de4e4b..8e69548395b9 100644
--- a/drivers/scsi/snic/snic_io.c
+++ b/drivers/scsi/snic/snic_io.c
@@ -48,7 +48,7 @@ snic_wq_cmpl_frame_send(struct vnic_wq *wq,
SNIC_TRC(snic->shost->host_no, 0, 0,
((ulong)(buf->os_buf) - sizeof(struct snic_req_info)), 0, 0,
0);
- pci_unmap_single(snic->pdev, buf->dma_addr, buf->len, PCI_DMA_TODEVICE);
+
buf->os_buf = NULL;
}
@@ -137,13 +137,36 @@ snic_select_wq(struct snic *snic)
return 0;
}
+static int
+snic_wqdesc_avail(struct snic *snic, int q_num, int req_type)
+{
+ int nr_wqdesc = snic->config.wq_enet_desc_count;
+
+ if (q_num > 0) {
+ /*
+ * Multi Queue case, additional care is required.
+ * Per WQ active requests need to be maintained.
+ */
+ SNIC_HOST_INFO(snic->shost, "desc_avail: Multi Queue case.\n");
+ SNIC_BUG_ON(q_num > 0);
+
+ return -1;
+ }
+
+ nr_wqdesc -= atomic64_read(&snic->s_stats.fw.actv_reqs);
+
+ return ((req_type == SNIC_REQ_HBA_RESET) ? nr_wqdesc : nr_wqdesc - 1);
+}
+
int
snic_queue_wq_desc(struct snic *snic, void *os_buf, u16 len)
{
dma_addr_t pa = 0;
unsigned long flags;
struct snic_fw_stats *fwstats = &snic->s_stats.fw;
+ struct snic_host_req *req = (struct snic_host_req *) os_buf;
long act_reqs;
+ long desc_avail = 0;
int q_num = 0;
snic_print_desc(__func__, os_buf, len);
@@ -156,11 +179,15 @@ snic_queue_wq_desc(struct snic *snic, void *os_buf, u16 len)
return -ENOMEM;
}
+ req->req_pa = (ulong)pa;
+
q_num = snic_select_wq(snic);
spin_lock_irqsave(&snic->wq_lock[q_num], flags);
- if (!svnic_wq_desc_avail(snic->wq)) {
+ desc_avail = snic_wqdesc_avail(snic, q_num, req->hdr.type);
+ if (desc_avail <= 0) {
pci_unmap_single(snic->pdev, pa, len, PCI_DMA_TODEVICE);
+ req->req_pa = 0;
spin_unlock_irqrestore(&snic->wq_lock[q_num], flags);
atomic64_inc(&snic->s_stats.misc.wq_alloc_fail);
SNIC_DBG("host = %d, WQ is Full\n", snic->shost->host_no);
@@ -169,10 +196,13 @@ snic_queue_wq_desc(struct snic *snic, void *os_buf, u16 len)
}
snic_queue_wq_eth_desc(&snic->wq[q_num], os_buf, pa, len, 0, 0, 1);
+ /*
+ * Update stats
+ * note: when multi queue enabled, fw actv_reqs should be per queue.
+ */
+ act_reqs = atomic64_inc_return(&fwstats->actv_reqs);
spin_unlock_irqrestore(&snic->wq_lock[q_num], flags);
- /* Update stats */
- act_reqs = atomic64_inc_return(&fwstats->actv_reqs);
if (act_reqs > atomic64_read(&fwstats->max_actv_reqs))
atomic64_set(&fwstats->max_actv_reqs, act_reqs);
@@ -318,11 +348,31 @@ snic_req_free(struct snic *snic, struct snic_req_info *rqi)
"Req_free:rqi %p:ioreq %p:abt %p:dr %p\n",
rqi, rqi->req, rqi->abort_req, rqi->dr_req);
- if (rqi->abort_req)
+ if (rqi->abort_req) {
+ if (rqi->abort_req->req_pa)
+ pci_unmap_single(snic->pdev,
+ rqi->abort_req->req_pa,
+ sizeof(struct snic_host_req),
+ PCI_DMA_TODEVICE);
+
mempool_free(rqi->abort_req, snic->req_pool[SNIC_REQ_TM_CACHE]);
+ }
+
+ if (rqi->dr_req) {
+ if (rqi->dr_req->req_pa)
+ pci_unmap_single(snic->pdev,
+ rqi->dr_req->req_pa,
+ sizeof(struct snic_host_req),
+ PCI_DMA_TODEVICE);
- if (rqi->dr_req)
mempool_free(rqi->dr_req, snic->req_pool[SNIC_REQ_TM_CACHE]);
+ }
+
+ if (rqi->req->req_pa)
+ pci_unmap_single(snic->pdev,
+ rqi->req->req_pa,
+ rqi->req_len,
+ PCI_DMA_TODEVICE);
mempool_free(rqi, snic->req_pool[rqi->rq_pool_type]);
}
diff --git a/drivers/scsi/snic/snic_isr.c b/drivers/scsi/snic/snic_isr.c
index a85fae25ec8c..f552003128c6 100644
--- a/drivers/scsi/snic/snic_isr.c
+++ b/drivers/scsi/snic/snic_isr.c
@@ -38,7 +38,7 @@ snic_isr_msix_wq(int irq, void *data)
unsigned long wq_work_done = 0;
snic->s_stats.misc.last_isr_time = jiffies;
- atomic64_inc(&snic->s_stats.misc.isr_cnt);
+ atomic64_inc(&snic->s_stats.misc.ack_isr_cnt);
wq_work_done = snic_wq_cmpl_handler(snic, -1);
svnic_intr_return_credits(&snic->intr[SNIC_MSIX_WQ],
@@ -56,7 +56,7 @@ snic_isr_msix_io_cmpl(int irq, void *data)
unsigned long iocmpl_work_done = 0;
snic->s_stats.misc.last_isr_time = jiffies;
- atomic64_inc(&snic->s_stats.misc.isr_cnt);
+ atomic64_inc(&snic->s_stats.misc.cmpl_isr_cnt);
iocmpl_work_done = snic_fwcq_cmpl_handler(snic, -1);
svnic_intr_return_credits(&snic->intr[SNIC_MSIX_IO_CMPL],
@@ -73,7 +73,7 @@ snic_isr_msix_err_notify(int irq, void *data)
struct snic *snic = data;
snic->s_stats.misc.last_isr_time = jiffies;
- atomic64_inc(&snic->s_stats.misc.isr_cnt);
+ atomic64_inc(&snic->s_stats.misc.errnotify_isr_cnt);
svnic_intr_return_all_credits(&snic->intr[SNIC_MSIX_ERR_NOTIFY]);
snic_log_q_error(snic);
diff --git a/drivers/scsi/snic/snic_main.c b/drivers/scsi/snic/snic_main.c
index 2b3c25371d76..396b32dca074 100644
--- a/drivers/scsi/snic/snic_main.c
+++ b/drivers/scsi/snic/snic_main.c
@@ -98,11 +98,18 @@ snic_slave_configure(struct scsi_device *sdev)
static int
snic_change_queue_depth(struct scsi_device *sdev, int qdepth)
{
+ struct snic *snic = shost_priv(sdev->host);
int qsz = 0;
qsz = min_t(u32, qdepth, SNIC_MAX_QUEUE_DEPTH);
+ if (qsz < sdev->queue_depth)
+ atomic64_inc(&snic->s_stats.misc.qsz_rampdown);
+ else if (qsz > sdev->queue_depth)
+ atomic64_inc(&snic->s_stats.misc.qsz_rampup);
+
+ atomic64_set(&snic->s_stats.misc.last_qsz, sdev->queue_depth);
+
scsi_change_queue_depth(sdev, qsz);
- SNIC_INFO("QDepth Changed to %d\n", sdev->queue_depth);
return sdev->queue_depth;
}
@@ -624,19 +631,6 @@ snic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
goto err_free_tmreq_pool;
}
- /*
- * Initialization done with PCI system, hardware, firmware.
- * Add shost to SCSI
- */
- ret = snic_add_host(shost, pdev);
- if (ret) {
- SNIC_HOST_ERR(shost,
- "Adding scsi host Failed ... exiting. %d\n",
- ret);
-
- goto err_notify_unset;
- }
-
spin_lock_irqsave(&snic_glob->snic_list_lock, flags);
list_add_tail(&snic->list, &snic_glob->snic_list);
spin_unlock_irqrestore(&snic_glob->snic_list_lock, flags);
@@ -669,8 +663,6 @@ snic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
for (i = 0; i < snic->intr_count; i++)
svnic_intr_unmask(&snic->intr[i]);
- snic_set_state(snic, SNIC_ONLINE);
-
/* Get snic params */
ret = snic_get_conf(snic);
if (ret) {
@@ -681,6 +673,21 @@ snic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
goto err_get_conf;
}
+ /*
+ * Initialization done with PCI system, hardware, firmware.
+ * Add shost to SCSI
+ */
+ ret = snic_add_host(shost, pdev);
+ if (ret) {
+ SNIC_HOST_ERR(shost,
+ "Adding scsi host Failed ... exiting. %d\n",
+ ret);
+
+ goto err_get_conf;
+ }
+
+ snic_set_state(snic, SNIC_ONLINE);
+
ret = snic_disc_start(snic);
if (ret) {
SNIC_HOST_ERR(shost, "snic_probe:Discovery Failed w err = %d\n",
@@ -705,6 +712,8 @@ err_req_intr:
svnic_dev_disable(snic->vdev);
err_vdev_enable:
+ svnic_dev_notify_unset(snic->vdev);
+
for (i = 0; i < snic->wq_count; i++) {
int rc = 0;
@@ -718,9 +727,6 @@ err_vdev_enable:
}
snic_del_host(snic->shost);
-err_notify_unset:
- svnic_dev_notify_unset(snic->vdev);
-
err_free_tmreq_pool:
mempool_destroy(snic->req_pool[SNIC_REQ_TM_CACHE]);
diff --git a/drivers/scsi/snic/snic_scsi.c b/drivers/scsi/snic/snic_scsi.c
index 2c7b4c321cbe..abada16b375b 100644
--- a/drivers/scsi/snic/snic_scsi.c
+++ b/drivers/scsi/snic/snic_scsi.c
@@ -221,11 +221,15 @@ snic_queue_icmnd_req(struct snic *snic,
pa, /* sense buffer pa */
SCSI_SENSE_BUFFERSIZE);
+ atomic64_inc(&snic->s_stats.io.active);
ret = snic_queue_wq_desc(snic, rqi->req, rqi->req_len);
- if (ret)
+ if (ret) {
+ atomic64_dec(&snic->s_stats.io.active);
SNIC_HOST_ERR(snic->shost,
"QIcmnd: Queuing Icmnd Failed. ret = %d\n",
ret);
+ } else
+ snic_stats_update_active_ios(&snic->s_stats);
return ret;
} /* end of snic_queue_icmnd_req */
@@ -361,8 +365,7 @@ snic_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *sc)
if (ret) {
SNIC_HOST_ERR(shost, "Failed to Q, Scsi Req w/ err %d.\n", ret);
ret = SCSI_MLQUEUE_HOST_BUSY;
- } else
- snic_stats_update_active_ios(&snic->s_stats);
+ }
atomic_dec(&snic->ios_inflight);
@@ -598,6 +601,12 @@ snic_icmnd_cmpl_handler(struct snic *snic, struct snic_fw_req *fwreq)
sc->device->lun, sc, sc->cmnd[0], snic_cmd_tag(sc),
CMD_FLAGS(sc), rqi);
+ if (CMD_FLAGS(sc) & SNIC_HOST_RESET_CMD_TERM) {
+ spin_unlock_irqrestore(io_lock, flags);
+
+ return;
+ }
+
SNIC_BUG_ON(rqi != (struct snic_req_info *)ctx);
WARN_ON_ONCE(req);
if (!rqi) {
@@ -779,6 +788,11 @@ snic_process_itmf_cmpl(struct snic *snic,
io_lock = snic_io_lock_hash(snic, sc);
spin_lock_irqsave(io_lock, flags);
+ if (CMD_FLAGS(sc) & SNIC_HOST_RESET_CMD_TERM) {
+ spin_unlock_irqrestore(io_lock, flags);
+
+ return ret;
+ }
rqi = (struct snic_req_info *) CMD_SP(sc);
WARN_ON_ONCE(!rqi);
@@ -1001,10 +1015,11 @@ snic_hba_reset_cmpl_handler(struct snic *snic, struct snic_fw_req *fwreq)
unsigned long flags, gflags;
int ret = 0;
+ snic_io_hdr_dec(&fwreq->hdr, &typ, &hdr_stat, &cmnd_id, &hid, &ctx);
SNIC_HOST_INFO(snic->shost,
- "reset_cmpl:HBA Reset Completion received.\n");
+ "reset_cmpl:Tag %d ctx %lx cmpl status %s HBA Reset Completion received.\n",
+ cmnd_id, ctx, snic_io_status_to_str(hdr_stat));
- snic_io_hdr_dec(&fwreq->hdr, &typ, &hdr_stat, &cmnd_id, &hid, &ctx);
SNIC_SCSI_DBG(snic->shost,
"reset_cmpl: type = %x, hdr_stat = %x, cmnd_id = %x, hid = %x, ctx = %lx\n",
typ, hdr_stat, cmnd_id, hid, ctx);
@@ -1012,6 +1027,9 @@ snic_hba_reset_cmpl_handler(struct snic *snic, struct snic_fw_req *fwreq)
/* spl case, host reset issued through ioctl */
if (cmnd_id == SCSI_NO_TAG) {
rqi = (struct snic_req_info *) ctx;
+ SNIC_HOST_INFO(snic->shost,
+ "reset_cmpl:Tag %d ctx %lx cmpl stat %s\n",
+ cmnd_id, ctx, snic_io_status_to_str(hdr_stat));
sc = rqi->sc;
goto ioctl_hba_rst;
@@ -1038,6 +1056,10 @@ ioctl_hba_rst:
return ret;
}
+ SNIC_HOST_INFO(snic->shost,
+ "reset_cmpl: sc %p rqi %p Tag %d flags 0x%llx\n",
+ sc, rqi, cmnd_id, CMD_FLAGS(sc));
+
io_lock = snic_io_lock_hash(snic, sc);
spin_lock_irqsave(io_lock, flags);
@@ -1454,11 +1476,19 @@ snic_abort_finish(struct snic *snic, struct scsi_cmnd *sc)
case SNIC_STAT_IO_SUCCESS:
case SNIC_STAT_IO_NOT_FOUND:
ret = SUCCESS;
+ /*
+ * If abort path doesn't call scsi_done(),
+ * the # IO timeouts == 2, will cause the LUN offline.
+ * Call scsi_done to complete the IO.
+ */
+ sc->result = (DID_ERROR << 16);
+ sc->scsi_done(sc);
break;
default:
/* Firmware completed abort with error */
ret = FAILED;
+ rqi = NULL;
break;
}
@@ -1554,6 +1584,7 @@ snic_send_abort_and_wait(struct snic *snic, struct scsi_cmnd *sc)
/* Now Queue the abort command to firmware */
ret = snic_queue_abort_req(snic, rqi, sc, tmf);
if (ret) {
+ atomic64_inc(&snic->s_stats.abts.q_fail);
SNIC_HOST_ERR(snic->shost,
"send_abt_cmd: IO w/ Tag 0x%x fail w/ err %d flags 0x%llx\n",
tag, ret, CMD_FLAGS(sc));
@@ -1830,6 +1861,9 @@ snic_dr_clean_single_req(struct snic *snic,
snic_release_req_buf(snic, rqi, sc);
+ sc->result = (DID_ERROR << 16);
+ sc->scsi_done(sc);
+
ret = 0;
return ret;
@@ -2384,6 +2418,13 @@ snic_cmpl_pending_tmreq(struct snic *snic, struct scsi_cmnd *sc)
"Completing Pending TM Req sc %p, state %s flags 0x%llx\n",
sc, snic_io_status_to_str(CMD_STATE(sc)), CMD_FLAGS(sc));
+ /*
+ * CASE : FW didn't post itmf completion due to PCIe Errors.
+ * Marking the abort status as Success to call scsi completion
+ * in snic_abort_finish()
+ */
+ CMD_ABTS_STATUS(sc) = SNIC_STAT_IO_SUCCESS;
+
rqi = (struct snic_req_info *) CMD_SP(sc);
if (!rqi)
return;
@@ -2459,8 +2500,9 @@ snic_scsi_cleanup(struct snic *snic, int ex_tag)
cleanup:
sc->result = DID_TRANSPORT_DISRUPTED << 16;
SNIC_HOST_INFO(snic->shost,
- "sc_clean: DID_TRANSPORT_DISRUPTED for sc %p. rqi %p duration %llu msecs\n",
- sc, rqi, (jiffies - st_time));
+ "sc_clean: DID_TRANSPORT_DISRUPTED for sc %p, Tag %d flags 0x%llx rqi %p duration %u msecs\n",
+ sc, sc->request->tag, CMD_FLAGS(sc), rqi,
+ jiffies_to_msecs(jiffies - st_time));
/* Update IO stats */
snic_stats_update_io_cmpl(&snic->s_stats);
diff --git a/drivers/scsi/snic/snic_stats.h b/drivers/scsi/snic/snic_stats.h
index 11e614849a82..fd1066b1cad5 100644
--- a/drivers/scsi/snic/snic_stats.h
+++ b/drivers/scsi/snic/snic_stats.h
@@ -42,6 +42,7 @@ struct snic_abort_stats {
atomic64_t drv_tmo; /* Abort Driver Timeouts */
atomic64_t fw_tmo; /* Abort Firmware Timeouts */
atomic64_t io_not_found;/* Abort IO Not Found */
+ atomic64_t q_fail; /* Abort Queuing Failed */
};
struct snic_reset_stats {
@@ -69,7 +70,9 @@ struct snic_fw_stats {
struct snic_misc_stats {
u64 last_isr_time;
u64 last_ack_time;
- atomic64_t isr_cnt;
+ atomic64_t ack_isr_cnt;
+ atomic64_t cmpl_isr_cnt;
+ atomic64_t errnotify_isr_cnt;
atomic64_t max_cq_ents; /* Max CQ Entries */
atomic64_t data_cnt_mismat; /* Data Count Mismatch */
atomic64_t io_tmo;
@@ -81,6 +84,9 @@ struct snic_misc_stats {
atomic64_t no_icmnd_itmf_cmpls;
atomic64_t io_under_run;
atomic64_t qfull;
+ atomic64_t qsz_rampup;
+ atomic64_t qsz_rampdown;
+ atomic64_t last_qsz;
atomic64_t tgt_not_rdy;
};
@@ -101,9 +107,9 @@ static inline void
snic_stats_update_active_ios(struct snic_stats *s_stats)
{
struct snic_io_stats *io = &s_stats->io;
- u32 nr_active_ios;
+ int nr_active_ios;
- nr_active_ios = atomic64_inc_return(&io->active);
+ nr_active_ios = atomic64_read(&io->active);
if (atomic64_read(&io->max_active) < nr_active_ios)
atomic64_set(&io->max_active, nr_active_ios);
diff --git a/drivers/scsi/snic/vnic_dev.c b/drivers/scsi/snic/vnic_dev.c
index e0b5549bc9fb..dad5fc66effb 100644
--- a/drivers/scsi/snic/vnic_dev.c
+++ b/drivers/scsi/snic/vnic_dev.c
@@ -263,12 +263,20 @@ static int _svnic_dev_cmd2(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
int wait)
{
struct devcmd2_controller *dc2c = vdev->devcmd2;
- struct devcmd2_result *result = dc2c->result + dc2c->next_result;
+ struct devcmd2_result *result = NULL;
unsigned int i;
int delay;
int err;
u32 posted;
+ u32 fetch_idx;
u32 new_posted;
+ u8 color;
+
+ fetch_idx = ioread32(&dc2c->wq_ctrl->fetch_index);
+ if (fetch_idx == 0xFFFFFFFF) { /* check for hardware gone */
+ /* Hardware surprise removal: return error */
+ return -ENODEV;
+ }
posted = ioread32(&dc2c->wq_ctrl->posted_index);
@@ -278,6 +286,13 @@ static int _svnic_dev_cmd2(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
}
new_posted = (posted + 1) % DEVCMD2_RING_SIZE;
+ if (new_posted == fetch_idx) {
+ pr_err("%s: wq is full while issuing devcmd2 command %d, fetch index: %u, posted index: %u\n",
+ pci_name(vdev->pdev), _CMD_N(cmd), fetch_idx, posted);
+
+ return -EBUSY;
+ }
+
dc2c->cmd_ring[posted].cmd = cmd;
dc2c->cmd_ring[posted].flags = 0;
@@ -299,14 +314,22 @@ static int _svnic_dev_cmd2(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
if (dc2c->cmd_ring[posted].flags & DEVCMD2_FNORESULT)
return 0;
+ result = dc2c->result + dc2c->next_result;
+ color = dc2c->color;
+
+ /*
+ * Increment next_result, after posting the devcmd, irrespective of
+ * devcmd result, and it should be done only once.
+ */
+ dc2c->next_result++;
+ if (dc2c->next_result == dc2c->result_size) {
+ dc2c->next_result = 0;
+ dc2c->color = dc2c->color ? 0 : 1;
+ }
+
for (delay = 0; delay < wait; delay++) {
udelay(100);
- if (result->color == dc2c->color) {
- dc2c->next_result++;
- if (dc2c->next_result == dc2c->result_size) {
- dc2c->next_result = 0;
- dc2c->color = dc2c->color ? 0 : 1;
- }
+ if (result->color == color) {
if (result->error) {
err = (int) result->error;
if (err != ERR_ECMDUNKNOWN ||
@@ -317,13 +340,6 @@ static int _svnic_dev_cmd2(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
return err;
}
if (_CMD_DIR(cmd) & _CMD_DIR_READ) {
- /*
- * Adding the rmb() prevents the compiler
- * and/or CPU from reordering the reads which
- * would potentially result in reading stale
- * values.
- */
- rmb();
for (i = 0; i < VNIC_DEVCMD_NARGS; i++)
vdev->args[i] = result->results[i];
}
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index dbf1882cfbac..7af5226aa55b 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -1974,9 +1974,12 @@ static long read_tape(struct scsi_tape *STp, long count,
transfer = (int)cmdstatp->uremainder64;
else
transfer = 0;
- if (STp->block_size == 0 &&
- cmdstatp->sense_hdr.sense_key == MEDIUM_ERROR)
- transfer = bytes;
+ if (cmdstatp->sense_hdr.sense_key == MEDIUM_ERROR) {
+ if (STp->block_size == 0)
+ transfer = bytes;
+ /* Some drives set ILI with MEDIUM ERROR */
+ cmdstatp->flags &= ~SENSE_ILI;
+ }
if (cmdstatp->flags & SENSE_ILI) { /* ILI */
if (STp->block_size == 0 &&
diff --git a/drivers/scsi/sun3_scsi.c b/drivers/scsi/sun3_scsi.c
index b9de487bbd31..3c4c07038948 100644
--- a/drivers/scsi/sun3_scsi.c
+++ b/drivers/scsi/sun3_scsi.c
@@ -36,14 +36,10 @@
#include <scsi/scsi_host.h>
#include "sun3_scsi.h"
-/* Definitions for the core NCR5380 driver. */
-
-#define REAL_DMA
-/* #define SUPPORT_TAGS */
/* minimum number of bytes to do dma on */
#define DMA_MIN_SIZE 129
-/* #define MAX_TAGS 32 */
+/* Definitions for the core NCR5380 driver. */
#define NCR5380_implementation_fields /* none */
@@ -55,14 +51,12 @@
#define NCR5380_abort sun3scsi_abort
#define NCR5380_info sun3scsi_info
-#define NCR5380_dma_read_setup(instance, data, count) \
- sun3scsi_dma_setup(instance, data, count, 0)
-#define NCR5380_dma_write_setup(instance, data, count) \
- sun3scsi_dma_setup(instance, data, count, 1)
+#define NCR5380_dma_recv_setup(instance, data, count) (count)
+#define NCR5380_dma_send_setup(instance, data, count) (count)
#define NCR5380_dma_residual(instance) \
sun3scsi_dma_residual(instance)
#define NCR5380_dma_xfer_len(instance, cmd, phase) \
- sun3scsi_dma_xfer_len(cmd->SCp.this_residual, cmd, !((phase) & SR_IO))
+ sun3scsi_dma_xfer_len(cmd->SCp.this_residual, cmd)
#define NCR5380_acquire_dma_irq(instance) (1)
#define NCR5380_release_dma_irq(instance)
@@ -78,10 +72,6 @@ static int setup_cmd_per_lun = -1;
module_param(setup_cmd_per_lun, int, 0);
static int setup_sg_tablesize = -1;
module_param(setup_sg_tablesize, int, 0);
-#ifdef SUPPORT_TAGS
-static int setup_use_tagged_queuing = -1;
-module_param(setup_use_tagged_queuing, int, 0);
-#endif
static int setup_hostid = -1;
module_param(setup_hostid, int, 0);
@@ -263,14 +253,13 @@ static inline unsigned long sun3scsi_dma_residual(struct Scsi_Host *instance)
return last_residual;
}
-static inline unsigned long sun3scsi_dma_xfer_len(unsigned long wanted,
- struct scsi_cmnd *cmd,
- int write_flag)
+static inline unsigned long sun3scsi_dma_xfer_len(unsigned long wanted_len,
+ struct scsi_cmnd *cmd)
{
- if (cmd->request->cmd_type == REQ_TYPE_FS)
- return wanted;
- else
+ if (wanted_len < DMA_MIN_SIZE || cmd->request->cmd_type != REQ_TYPE_FS)
return 0;
+
+ return wanted_len;
}
static inline int sun3scsi_dma_start(unsigned long count, unsigned char *data)
@@ -408,7 +397,7 @@ static int sun3scsi_dma_finish(int write_flag)
}
-#include "atari_NCR5380.c"
+#include "NCR5380.c"
#ifdef SUN3_SCSI_VME
#define SUN3_SCSI_NAME "Sun3 NCR5380 VME SCSI"
@@ -516,10 +505,6 @@ static int __init sun3_scsi_probe(struct platform_device *pdev)
instance->io_port = (unsigned long)ioaddr;
instance->irq = irq->start;
-#ifdef SUPPORT_TAGS
- host_flags |= setup_use_tagged_queuing > 0 ? FLAG_TAGGED_QUEUING : 0;
-#endif
-
error = NCR5380_init(instance, host_flags);
if (error)
goto fail_init;
@@ -527,15 +512,9 @@ static int __init sun3_scsi_probe(struct platform_device *pdev)
error = request_irq(instance->irq, scsi_sun3_intr, 0,
"NCR5380", instance);
if (error) {
-#ifdef REAL_DMA
pr_err(PFX "scsi%d: IRQ %d not free, bailing out\n",
instance->host_no, instance->irq);
goto fail_irq;
-#else
- pr_warn(PFX "scsi%d: IRQ %d not free, interrupts disabled\n",
- instance->host_no, instance->irq);
- instance->irq = NO_IRQ;
-#endif
}
dregs->csr = 0;
@@ -565,8 +544,7 @@ static int __init sun3_scsi_probe(struct platform_device *pdev)
return 0;
fail_host:
- if (instance->irq != NO_IRQ)
- free_irq(instance->irq, instance);
+ free_irq(instance->irq, instance);
fail_irq:
NCR5380_exit(instance);
fail_init:
@@ -583,8 +561,7 @@ static int __exit sun3_scsi_remove(struct platform_device *pdev)
struct Scsi_Host *instance = platform_get_drvdata(pdev);
scsi_remove_host(instance);
- if (instance->irq != NO_IRQ)
- free_irq(instance->irq, instance);
+ free_irq(instance->irq, instance);
NCR5380_exit(instance);
scsi_host_put(instance);
if (udc_regs)
diff --git a/drivers/scsi/t128.c b/drivers/scsi/t128.c
index 4615fda60dbd..8a8608ac62e6 100644
--- a/drivers/scsi/t128.c
+++ b/drivers/scsi/t128.c
@@ -1,5 +1,3 @@
-#define PSEUDO_DMA
-
/*
* Trantor T128/T128F/T228 driver
* Note : architecturally, the T100 and T130 are different and won't
@@ -76,7 +74,6 @@
#include <scsi/scsi_host.h>
#include "t128.h"
-#define AUTOPROBE_IRQ
#include "NCR5380.h"
static struct override {
@@ -210,7 +207,7 @@ found:
instance->base = base;
((struct NCR5380_hostdata *)instance->hostdata)->base = p;
- if (NCR5380_init(instance, 0))
+ if (NCR5380_init(instance, FLAG_DMA_FIXUP | FLAG_LATE_DMA_SETUP))
goto out_unregister;
NCR5380_maybe_reset_bus(instance);
@@ -294,7 +291,7 @@ static int t128_biosparam(struct scsi_device *sdev, struct block_device *bdev,
}
/*
- * Function : int NCR5380_pread (struct Scsi_Host *instance,
+ * Function : int t128_pread (struct Scsi_Host *instance,
* unsigned char *dst, int len)
*
* Purpose : Fast 5380 pseudo-dma read function, transfers len bytes to
@@ -306,8 +303,8 @@ static int t128_biosparam(struct scsi_device *sdev, struct block_device *bdev,
* timeout.
*/
-static inline int
-NCR5380_pread(struct Scsi_Host *instance, unsigned char *dst, int len)
+static inline int t128_pread(struct Scsi_Host *instance,
+ unsigned char *dst, int len)
{
struct NCR5380_hostdata *hostdata = shost_priv(instance);
void __iomem *reg, *base = hostdata->base;
@@ -340,7 +337,7 @@ NCR5380_pread(struct Scsi_Host *instance, unsigned char *dst, int len)
}
/*
- * Function : int NCR5380_pwrite (struct Scsi_Host *instance,
+ * Function : int t128_pwrite (struct Scsi_Host *instance,
* unsigned char *src, int len)
*
* Purpose : Fast 5380 pseudo-dma write function, transfers len bytes from
@@ -352,8 +349,8 @@ NCR5380_pread(struct Scsi_Host *instance, unsigned char *dst, int len)
* timeout.
*/
-static inline int
-NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *src, int len)
+static inline int t128_pwrite(struct Scsi_Host *instance,
+ unsigned char *src, int len)
{
struct NCR5380_hostdata *hostdata = shost_priv(instance);
void __iomem *reg, *base = hostdata->base;
@@ -394,8 +391,6 @@ static struct scsi_host_template driver_template = {
.detect = t128_detect,
.release = t128_release,
.proc_name = "t128",
- .show_info = t128_show_info,
- .write_info = t128_write_info,
.info = t128_info,
.queuecommand = t128_queue_command,
.eh_abort_handler = t128_abort,
diff --git a/drivers/scsi/t128.h b/drivers/scsi/t128.h
index dd16d85497e1..c95bcd839109 100644
--- a/drivers/scsi/t128.h
+++ b/drivers/scsi/t128.h
@@ -77,14 +77,17 @@
#define NCR5380_write(reg, value) writeb((value),(T128_address(reg)))
#define NCR5380_dma_xfer_len(instance, cmd, phase) (cmd->transfersize)
+#define NCR5380_dma_recv_setup t128_pread
+#define NCR5380_dma_send_setup t128_pwrite
+#define NCR5380_dma_residual(instance) (0)
#define NCR5380_intr t128_intr
#define NCR5380_queue_command t128_queue_command
#define NCR5380_abort t128_abort
#define NCR5380_bus_reset t128_bus_reset
#define NCR5380_info t128_info
-#define NCR5380_show_info t128_show_info
-#define NCR5380_write_info t128_write_info
+
+#define NCR5380_io_delay(x) udelay(x)
/* 15 14 12 10 7 5 3
1101 0100 1010 1000 */
diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c
index 90901861bfc0..ae85861051eb 100644
--- a/drivers/usb/storage/scsiglue.c
+++ b/drivers/usb/storage/scsiglue.c
@@ -563,7 +563,7 @@ static const struct scsi_host_template usb_stor_host_template = {
.target_alloc = target_alloc,
/* lots of sg segments can be handled */
- .sg_tablesize = SCSI_MAX_SG_CHAIN_SEGMENTS,
+ .sg_tablesize = SG_MAX_SEGMENTS,
/* limit the total size of a transfer to 120 KB */
.max_sectors = 240,
diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h
index 556ec1ea2574..cb3c8fe6acd7 100644
--- a/include/linux/scatterlist.h
+++ b/include/linux/scatterlist.h
@@ -286,6 +286,31 @@ size_t sg_pcopy_to_buffer(struct scatterlist *sgl, unsigned int nents,
#define SG_MAX_SINGLE_ALLOC (PAGE_SIZE / sizeof(struct scatterlist))
/*
+ * The maximum number of SG segments that we will put inside a
+ * scatterlist (unless chaining is used). Should ideally fit inside a
+ * single page, to avoid a higher order allocation. We could define this
+ * to SG_MAX_SINGLE_ALLOC to pack correctly at the highest order. The
+ * minimum value is 32
+ */
+#define SG_CHUNK_SIZE 128
+
+/*
+ * Like SG_CHUNK_SIZE, but for archs that have sg chaining. This limit
+ * is totally arbitrary, a setting of 2048 will get you at least 8mb ios.
+ */
+#ifdef CONFIG_ARCH_HAS_SG_CHAIN
+#define SG_MAX_SEGMENTS 2048
+#else
+#define SG_MAX_SEGMENTS SG_CHUNK_SIZE
+#endif
+
+#ifdef CONFIG_SG_POOL
+void sg_free_table_chained(struct sg_table *table, bool first_chunk);
+int sg_alloc_table_chained(struct sg_table *table, int nents,
+ struct scatterlist *first_chunk);
+#endif
+
+/*
* sg page iterator
*
* Iterates over sg entries page-by-page. On each successful iteration,
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index e0a3398b1547..8ec7c30e35af 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -18,25 +18,6 @@ enum scsi_timeouts {
};
/*
- * The maximum number of SG segments that we will put inside a
- * scatterlist (unless chaining is used). Should ideally fit inside a
- * single page, to avoid a higher order allocation. We could define this
- * to SG_MAX_SINGLE_ALLOC to pack correctly at the highest order. The
- * minimum value is 32
- */
-#define SCSI_MAX_SG_SEGMENTS 128
-
-/*
- * Like SCSI_MAX_SG_SEGMENTS, but for archs that have sg chaining. This limit
- * is totally arbitrary, a setting of 2048 will get you at least 8mb ios.
- */
-#ifdef CONFIG_ARCH_HAS_SG_CHAIN
-#define SCSI_MAX_SG_CHAIN_SEGMENTS 2048
-#else
-#define SCSI_MAX_SG_CHAIN_SEGMENTS SCSI_MAX_SG_SEGMENTS
-#endif
-
-/*
* DIX-capable adapters effectively support infinite chaining for the
* protection information scatterlist
*/
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 74d79bde7075..a6c346df290d 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -50,6 +50,12 @@ enum scsi_device_state {
SDEV_CREATED_BLOCK, /* same as above but for created devices */
};
+enum scsi_scan_mode {
+ SCSI_SCAN_INITIAL = 0,
+ SCSI_SCAN_RESCAN,
+ SCSI_SCAN_MANUAL,
+};
+
enum scsi_device_event {
SDEV_EVT_MEDIA_CHANGE = 1, /* media has changed */
SDEV_EVT_INQUIRY_CHANGE_REPORTED, /* 3F 03 UA reported */
@@ -242,6 +248,7 @@ scmd_printk(const char *, const struct scsi_cmnd *, const char *, ...);
enum scsi_target_state {
STARGET_CREATED = 1,
STARGET_RUNNING,
+ STARGET_REMOVE,
STARGET_DEL,
};
@@ -391,7 +398,8 @@ extern void scsi_device_resume(struct scsi_device *sdev);
extern void scsi_target_quiesce(struct scsi_target *);
extern void scsi_target_resume(struct scsi_target *);
extern void scsi_scan_target(struct device *parent, unsigned int channel,
- unsigned int id, u64 lun, int rescan);
+ unsigned int id, u64 lun,
+ enum scsi_scan_mode rescan);
extern void scsi_target_reap(struct scsi_target *);
extern void scsi_target_block(struct device *);
extern void scsi_target_unblock(struct device *, enum scsi_device_state);
@@ -534,9 +542,9 @@ static inline int scsi_device_supports_vpd(struct scsi_device *sdev)
/*
* Although VPD inquiries can go to SCSI-2 type devices,
* some USB ones crash on receiving them, and the pages
- * we currently ask for are for SPC-3 and beyond
+ * we currently ask for are mandatory for SPC-2 and beyond
*/
- if (sdev->scsi_level > SCSI_SPC_2 && !sdev->skip_vpd_pages)
+ if (sdev->scsi_level >= SCSI_SPC_2 && !sdev->skip_vpd_pages)
return 1;
return 0;
}
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index fcfa3d7f5e7e..76e9d278c334 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -37,7 +37,7 @@ struct blk_queue_tags;
* used in one scatter-gather request.
*/
#define SG_NONE 0
-#define SG_ALL SCSI_MAX_SG_SEGMENTS
+#define SG_ALL SG_CHUNK_SIZE
#define MODE_UNKNOWN 0x00
#define MODE_INITIATOR 0x01
diff --git a/include/scsi/scsi_proto.h b/include/scsi/scsi_proto.h
index c2ae21cbaa2c..d1defd1ebd95 100644
--- a/include/scsi/scsi_proto.h
+++ b/include/scsi/scsi_proto.h
@@ -115,6 +115,8 @@
#define VERIFY_16 0x8f
#define SYNCHRONIZE_CACHE_16 0x91
#define WRITE_SAME_16 0x93
+#define ZBC_OUT 0x94
+#define ZBC_IN 0x95
#define SERVICE_ACTION_BIDIRECTIONAL 0x9d
#define SERVICE_ACTION_IN_16 0x9e
#define SERVICE_ACTION_OUT_16 0x9f
@@ -143,6 +145,13 @@
#define MO_SET_PRIORITY 0x0e
#define MO_SET_TIMESTAMP 0x0f
#define MO_MANAGEMENT_PROTOCOL_OUT 0x10
+/* values for ZBC_IN */
+#define ZI_REPORT_ZONES 0x00
+/* values for ZBC_OUT */
+#define ZO_CLOSE_ZONE 0x01
+#define ZO_FINISH_ZONE 0x02
+#define ZO_OPEN_ZONE 0x03
+#define ZO_RESET_WRITE_POINTER 0x04
/* values for variable length command */
#define XDREAD_32 0x03
#define XDWRITE_32 0x04
diff --git a/include/trace/events/scsi.h b/include/trace/events/scsi.h
index 079bd10a01b4..9a9b3e2550af 100644
--- a/include/trace/events/scsi.h
+++ b/include/trace/events/scsi.h
@@ -94,11 +94,9 @@
scsi_opcode_name(WRITE_16), \
scsi_opcode_name(VERIFY_16), \
scsi_opcode_name(WRITE_SAME_16), \
+ scsi_opcode_name(ZBC_OUT), \
+ scsi_opcode_name(ZBC_IN), \
scsi_opcode_name(SERVICE_ACTION_IN_16), \
- scsi_opcode_name(SAI_READ_CAPACITY_16), \
- scsi_opcode_name(SAI_GET_LBA_STATUS), \
- scsi_opcode_name(MI_REPORT_TARGET_PGS), \
- scsi_opcode_name(MO_SET_TARGET_PGS), \
scsi_opcode_name(READ_32), \
scsi_opcode_name(WRITE_32), \
scsi_opcode_name(WRITE_SAME_32), \
diff --git a/lib/Kconfig b/lib/Kconfig
index 3cca1222578e..61d55bd0ed89 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -523,6 +523,13 @@ config SG_SPLIT
a scatterlist. This should be selected by a driver or an API which
whishes to split a scatterlist amongst multiple DMA channels.
+config SG_POOL
+ def_bool n
+ help
+ Provides a helper to allocate chained scatterlists. This should be
+ selected by a driver or an API which whishes to allocate chained
+ scatterlist.
+
#
# sg chaining option
#
diff --git a/lib/Makefile b/lib/Makefile
index a65e9a861535..931396ada5eb 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -178,6 +178,7 @@ obj-$(CONFIG_GENERIC_STRNLEN_USER) += strnlen_user.o
obj-$(CONFIG_GENERIC_NET_UTILS) += net_utils.o
obj-$(CONFIG_SG_SPLIT) += sg_split.o
+obj-$(CONFIG_SG_POOL) += sg_pool.o
obj-$(CONFIG_STMP_DEVICE) += stmp_device.o
obj-$(CONFIG_IRQ_POLL) += irq_poll.o
diff --git a/lib/sg_pool.c b/lib/sg_pool.c
new file mode 100644
index 000000000000..6dd30615a201
--- /dev/null
+++ b/lib/sg_pool.c
@@ -0,0 +1,172 @@
+#include <linux/module.h>
+#include <linux/scatterlist.h>
+#include <linux/mempool.h>
+#include <linux/slab.h>
+
+#define SG_MEMPOOL_NR ARRAY_SIZE(sg_pools)
+#define SG_MEMPOOL_SIZE 2
+
+struct sg_pool {
+ size_t size;
+ char *name;
+ struct kmem_cache *slab;
+ mempool_t *pool;
+};
+
+#define SP(x) { .size = x, "sgpool-" __stringify(x) }
+#if (SG_CHUNK_SIZE < 32)
+#error SG_CHUNK_SIZE is too small (must be 32 or greater)
+#endif
+static struct sg_pool sg_pools[] = {
+ SP(8),
+ SP(16),
+#if (SG_CHUNK_SIZE > 32)
+ SP(32),
+#if (SG_CHUNK_SIZE > 64)
+ SP(64),
+#if (SG_CHUNK_SIZE > 128)
+ SP(128),
+#if (SG_CHUNK_SIZE > 256)
+#error SG_CHUNK_SIZE is too large (256 MAX)
+#endif
+#endif
+#endif
+#endif
+ SP(SG_CHUNK_SIZE)
+};
+#undef SP
+
+static inline unsigned int sg_pool_index(unsigned short nents)
+{
+ unsigned int index;
+
+ BUG_ON(nents > SG_CHUNK_SIZE);
+
+ if (nents <= 8)
+ index = 0;
+ else
+ index = get_count_order(nents) - 3;
+
+ return index;
+}
+
+static void sg_pool_free(struct scatterlist *sgl, unsigned int nents)
+{
+ struct sg_pool *sgp;
+
+ sgp = sg_pools + sg_pool_index(nents);
+ mempool_free(sgl, sgp->pool);
+}
+
+static struct scatterlist *sg_pool_alloc(unsigned int nents, gfp_t gfp_mask)
+{
+ struct sg_pool *sgp;
+
+ sgp = sg_pools + sg_pool_index(nents);
+ return mempool_alloc(sgp->pool, gfp_mask);
+}
+
+/**
+ * sg_free_table_chained - Free a previously mapped sg table
+ * @table: The sg table header to use
+ * @first_chunk: was first_chunk not NULL in sg_alloc_table_chained?
+ *
+ * Description:
+ * Free an sg table previously allocated and setup with
+ * sg_alloc_table_chained().
+ *
+ **/
+void sg_free_table_chained(struct sg_table *table, bool first_chunk)
+{
+ if (first_chunk && table->orig_nents <= SG_CHUNK_SIZE)
+ return;
+ __sg_free_table(table, SG_CHUNK_SIZE, first_chunk, sg_pool_free);
+}
+EXPORT_SYMBOL_GPL(sg_free_table_chained);
+
+/**
+ * sg_alloc_table_chained - Allocate and chain SGLs in an sg table
+ * @table: The sg table header to use
+ * @nents: Number of entries in sg list
+ * @first_chunk: first SGL
+ *
+ * Description:
+ * Allocate and chain SGLs in an sg table. If @nents@ is larger than
+ * SG_CHUNK_SIZE a chained sg table will be setup.
+ *
+ **/
+int sg_alloc_table_chained(struct sg_table *table, int nents,
+ struct scatterlist *first_chunk)
+{
+ int ret;
+
+ BUG_ON(!nents);
+
+ if (first_chunk) {
+ if (nents <= SG_CHUNK_SIZE) {
+ table->nents = table->orig_nents = nents;
+ sg_init_table(table->sgl, nents);
+ return 0;
+ }
+ }
+
+ ret = __sg_alloc_table(table, nents, SG_CHUNK_SIZE,
+ first_chunk, GFP_ATOMIC, sg_pool_alloc);
+ if (unlikely(ret))
+ sg_free_table_chained(table, (bool)first_chunk);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(sg_alloc_table_chained);
+
+static __init int sg_pool_init(void)
+{
+ int i;
+
+ for (i = 0; i < SG_MEMPOOL_NR; i++) {
+ struct sg_pool *sgp = sg_pools + i;
+ int size = sgp->size * sizeof(struct scatterlist);
+
+ sgp->slab = kmem_cache_create(sgp->name, size, 0,
+ SLAB_HWCACHE_ALIGN, NULL);
+ if (!sgp->slab) {
+ printk(KERN_ERR "SG_POOL: can't init sg slab %s\n",
+ sgp->name);
+ goto cleanup_sdb;
+ }
+
+ sgp->pool = mempool_create_slab_pool(SG_MEMPOOL_SIZE,
+ sgp->slab);
+ if (!sgp->pool) {
+ printk(KERN_ERR "SG_POOL: can't init sg mempool %s\n",
+ sgp->name);
+ goto cleanup_sdb;
+ }
+ }
+
+ return 0;
+
+cleanup_sdb:
+ for (i = 0; i < SG_MEMPOOL_NR; i++) {
+ struct sg_pool *sgp = sg_pools + i;
+ if (sgp->pool)
+ mempool_destroy(sgp->pool);
+ if (sgp->slab)
+ kmem_cache_destroy(sgp->slab);
+ }
+
+ return -ENOMEM;
+}
+
+static __exit void sg_pool_exit(void)
+{
+ int i;
+
+ for (i = 0; i < SG_MEMPOOL_NR; i++) {
+ struct sg_pool *sgp = sg_pools + i;
+ mempool_destroy(sgp->pool);
+ kmem_cache_destroy(sgp->slab);
+ }
+}
+
+module_init(sg_pool_init);
+module_exit(sg_pool_exit);