| Commit message (Collapse) | Author | Age | Files | Lines |
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If the driver detects that the controller is not ready before sending the
first IOC facts command, it will wait for a maximum of 10 seconds for it to
become ready. However, even if the controller becomes ready within 10
seconds, the driver will still issue a diagnostic reset.
Modify the driver to avoid sending a diag reset if the controller becomes
ready within the 10-second wait time.
Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Link: https://lore.kernel.org/r/20240221071724.14986-1-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Doubling the number of PHYs also doubled the stack usage of this function,
exceeding the 32-bit limit of 1024 bytes:
drivers/scsi/mpi3mr/mpi3mr_transport.c: In function 'mpi3mr_refresh_sas_ports':
drivers/scsi/mpi3mr/mpi3mr_transport.c:1818:1: error: the frame size of 1636 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
Since the sas_io_unit_pg0 structure is already allocated dynamically, use
the same method here. The size of the allocation can be smaller based on
the actual number of phys now, so use this as an upper bound.
Fixes: cb5b60894602 ("scsi: mpi3mr: Increase maximum number of PHYs to 64 from 32")
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Cc: Sathya Prakash Veerichetty <sathya.prakash@broadcom.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20240123130754.2011469-1-arnd@kernel.org
Tested-by: John Garry <john.g.garry@oracle.com> #build only
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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JAZZ_ESP is a bool kconfig symbol that selects SCSI_SPI_ATTRS. When
CONFIG_SCSI=m, this results in SCSI_SPI_ATTRS=m while JAZZ_ESP=y, which
causes many undefined symbol linker errors.
Fix this by only offering to build this driver when CONFIG_SCSI=y.
[mkp: JAZZ_ESP is unique in that it does not support being compiled as a
module unlike the remaining SPI SCSI HBA drivers]
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20240214055953.9612-1-rdunlap@infradead.org
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: linux-mips@vger.kernel.org
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Nicolas Schier <nicolas@fjasle.eu>
Cc: James E.J. Bottomley <jejb@linux.ibm.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202402112222.Gl0udKyU-lkp@intel.com/
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Correct blk-mq registration issue with module parameter
disable_managed_interrupts enabled.
When we turn off the default PCI_IRQ_AFFINITY flag, the driver needs to
register with blk-mq using blk_mq_map_queues(). The driver is currently
calling blk_mq_pci_map_queues() which results in a stack trace and possibly
undefined behavior.
Stack Trace:
[ 7.860089] scsi host2: smartpqi
[ 7.871934] WARNING: CPU: 0 PID: 238 at block/blk-mq-pci.c:52 blk_mq_pci_map_queues+0xca/0xd0
[ 7.889231] Modules linked in: sd_mod t10_pi sg uas smartpqi(+) crc32c_intel scsi_transport_sas usb_storage dm_mirror dm_region_hash dm_log dm_mod ipmi_devintf ipmi_msghandler fuse
[ 7.924755] CPU: 0 PID: 238 Comm: kworker/0:3 Not tainted 4.18.0-372.88.1.el8_6_smartpqi_test.x86_64 #1
[ 7.944336] Hardware name: HPE ProLiant DL380 Gen10/ProLiant DL380 Gen10, BIOS U30 03/08/2022
[ 7.963026] Workqueue: events work_for_cpu_fn
[ 7.978275] RIP: 0010:blk_mq_pci_map_queues+0xca/0xd0
[ 7.978278] Code: 48 89 de 89 c7 e8 f6 0f 4f 00 3b 05 c4 b7 8e 01 72 e1 5b 31 c0 5d 41 5c 41 5d 41 5e 41 5f e9 7d df 73 00 31 c0 e9 76 df 73 00 <0f> 0b eb bc 90 90 0f 1f 44 00 00 41 57 49 89 ff 41 56 41 55 41 54
[ 7.978280] RSP: 0018:ffffa95fc3707d50 EFLAGS: 00010216
[ 7.978283] RAX: 00000000ffffffff RBX: 0000000000000000 RCX: 0000000000000010
[ 7.978284] RDX: 0000000000000004 RSI: 0000000000000000 RDI: ffff9190c32d4310
[ 7.978286] RBP: 0000000000000000 R08: ffffa95fc3707d38 R09: ffff91929b81ac00
[ 7.978287] R10: 0000000000000001 R11: ffffa95fc3707ac0 R12: 0000000000000000
[ 7.978288] R13: ffff9190c32d4000 R14: 00000000ffffffff R15: ffff9190c4c950a8
[ 7.978290] FS: 0000000000000000(0000) GS:ffff9193efc00000(0000) knlGS:0000000000000000
[ 7.978292] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8.172814] CR2: 000055d11166c000 CR3: 00000002dae10002 CR4: 00000000007706f0
[ 8.172816] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 8.172817] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 8.172818] PKRU: 55555554
[ 8.172819] Call Trace:
[ 8.172823] blk_mq_alloc_tag_set+0x12e/0x310
[ 8.264339] scsi_add_host_with_dma.cold.9+0x30/0x245
[ 8.279302] pqi_ctrl_init+0xacf/0xc8e [smartpqi]
[ 8.294085] ? pqi_pci_probe+0x480/0x4c8 [smartpqi]
[ 8.309015] pqi_pci_probe+0x480/0x4c8 [smartpqi]
[ 8.323286] local_pci_probe+0x42/0x80
[ 8.337855] work_for_cpu_fn+0x16/0x20
[ 8.351193] process_one_work+0x1a7/0x360
[ 8.364462] ? create_worker+0x1a0/0x1a0
[ 8.379252] worker_thread+0x1ce/0x390
[ 8.392623] ? create_worker+0x1a0/0x1a0
[ 8.406295] kthread+0x10a/0x120
[ 8.418428] ? set_kthread_struct+0x50/0x50
[ 8.431532] ret_from_fork+0x1f/0x40
[ 8.444137] ---[ end trace 1bf0173d39354506 ]---
Fixes: cf15c3e734e8 ("scsi: smartpqi: Add module param to disable managed ints")
Tested-by: Yogesh Chandra Pandey <YogeshChandra.Pandey@microchip.com>
Reviewed-by: Scott Benesh <scott.benesh@microchip.com>
Reviewed-by: Scott Teel <scott.teel@microchip.com>
Reviewed-by: Mahesh Rajashekhara <mahesh.rajashekhara@microchip.com>
Reviewed-by: Mike McGowen <mike.mcgowen@microchip.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microchip.com>
Signed-off-by: Don Brace <don.brace@microchip.com>
Link: https://lore.kernel.org/r/20240213162200.1875970-2-don.brace@microchip.com
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Commit c92a6b5d6335 ("scsi: core: Query VPD size before getting full
page") removed the logic which checks whether a VPD page is present on
the supported pages list before asking for the page itself. That was
done because SPC helpfully states "The Supported VPD Pages VPD page
list may or may not include all the VPD pages that are able to be
returned by the device server". Testing had revealed a few devices
that supported some of the 0xBn pages but didn't actually list them in
page 0.
Julian Sikorski bisected a problem with his drive resetting during
discovery to the commit above. As it turns out, this particular drive
firmware will crash if we attempt to fetch page 0xB9.
Various approaches were attempted to work around this. In the end,
reinstating the logic that consults VPD page 0 before fetching any
other page was the path of least resistance. A firmware update for the
devices which originally compelled us to remove the check has since
been released.
Link: https://lore.kernel.org/r/20240214221411.2888112-1-martin.petersen@oracle.com
Fixes: c92a6b5d6335 ("scsi: core: Query VPD size before getting full page")
Cc: stable@vger.kernel.org
Cc: Bart Van Assche <bvanassche@acm.org>
Reported-by: Julian Sikorski <belegdol@gmail.com>
Tested-by: Julian Sikorski <belegdol@gmail.com>
Reviewed-by: Lee Duncan <lee.duncan@suse.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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It has been observed that some USB/UAS devices return generic properties
hardcoded in firmware for mode pages for a period of time after a device
has been discovered. The reported properties are either garbage or they do
not accurately reflect the characteristics of the physical storage device
attached in the case of a bridge.
Prior to commit 1e029397d12f ("scsi: sd: Reorganize DIF/DIX code to
avoid calling revalidate twice") we would call revalidate several
times during device discovery. As a result, incorrect values would
eventually get replaced with ones accurately describing the attached
storage. When we did away with the redundant revalidate pass, several
cases were reported where devices reported nonsensical values or would
end up in write-protected state.
An initial attempt at addressing this issue involved introducing a
delayed second revalidate invocation. However, this approach still
left some devices reporting incorrect characteristics.
Tasos Sahanidis debugged the problem further and identified that
introducing a READ operation prior to MODE SENSE fixed the problem and that
it wasn't a timing issue. Issuing a READ appears to cause the devices to
update their state to reflect the actual properties of the storage
media. Device properties like vendor, model, and storage capacity appear to
be correctly reported from the get-go. It is unclear why these devices
defer populating the remaining characteristics.
Match the behavior of a well known commercial operating system and
trigger a READ operation prior to querying device characteristics to
force the device to populate the mode pages.
The additional READ is triggered by a flag set in the USB storage and
UAS drivers. We avoid issuing the READ for other transport classes
since some storage devices identify Linux through our particular
discovery command sequence.
Link: https://lore.kernel.org/r/20240213143306.2194237-1-martin.petersen@oracle.com
Fixes: 1e029397d12f ("scsi: sd: Reorganize DIF/DIX code to avoid calling revalidate twice")
Cc: stable@vger.kernel.org
Reported-by: Tasos Sahanidis <tasos@tasossah.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Tasos Sahanidis <tasos@tasossah.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Rather than call 'fnic_flush_tx()' from interrupt context we should be
moving it onto a work queue to avoid any locking issues.
Fixes: 1a1975551943 ("scsi: fcoe: Fix potential deadlock on &fip->ctlr_lock")
Co-developed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Lee Duncan <lduncan@suse.com>
Link: https://lore.kernel.org/r/ce5ffa5d0ff82c2b2e283b3b4bff23291d49b05c.1707500786.git.lduncan@suse.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This reverts commit 1a1975551943f681772720f639ff42fbaa746212.
This commit causes interrupts to be lost for FCoE devices, since it changed
sping locks from "bh" to "irqsave".
Instead, a work queue should be used, and will be addressed in a separate
commit.
Fixes: 1a1975551943 ("scsi: fcoe: Fix potential deadlock on &fip->ctlr_lock")
Signed-off-by: Lee Duncan <lduncan@suse.com>
Link: https://lore.kernel.org/r/c578cdcd46b60470535c4c4a953e6a1feca0dffd.1707500786.git.lduncan@suse.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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LUNs going into "failed ready running" state observed on >1T and on even
numbers of size (2T, 4T, 6T, 8T and 10T). The issue occurs when DIF is
enabled at the host.
The kernel logs:
Cannot setup S/G List for HBAIO segs 1/1 SGL 512 SCSI 256: 3 0
The host lpfc driver is failing to setup scatter/gather list (protection
data) for the I/Os.
The return type lpfc_bg_setup_sgl()/lpfc_bg_setup_sgl_prot() causes the
compiler to remove the most significant bit. Use an unsigned type instead.
Signed-off-by: Hannes Reinecke <hare@suse.de>
[dwagner: added commit message]
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Link: https://lore.kernel.org/r/20231220162658.12392-1-dwagner@suse.de
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Commit 4373534a9850 ("scsi: core: Move scsi_host_busy() out of host lock
for waking up EH handler") intended to fix a hard lockup issue triggered by
EH. The core idea was to move scsi_host_busy() out of the host lock when
processing individual commands for EH. However, a suggested style change
inadvertently caused scsi_host_busy() to remain under the host lock. Fix
this by calling scsi_host_busy() outside the lock.
Fixes: 4373534a9850 ("scsi: core: Move scsi_host_busy() out of host lock for waking up EH handler")
Cc: Sathya Prakash Veerichetty <safhya.prakash@broadcom.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20240203024521.2006455-1-ming.lei@redhat.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Current code uses the specified ring buffer size (either the default of 128
Kbytes or a module parameter specified value) to encompass the one page
ring buffer header plus the actual ring itself. When the page size is 4K,
carving off one page for the header isn't significant. But when the page
size is 64K on ARM64, only half of the default 128 Kbytes is left for the
actual ring. While this doesn't break anything, the smaller ring size
could be a performance bottleneck.
Fix this by applying the VMBUS_RING_SIZE macro to the specified ring buffer
size. This macro adds a page for the header, and rounds up the size to a
page boundary, using the page size for which the kernel is built. Use this
new size for subsequent ring buffer calculations. For example, on ARM64
with 64K page size and the default ring size, this results in the actual
ring being 128 Kbytes, which is intended.
Cc: stable@vger.kernel.org # 5.15.x
Signed-off-by: Michael Kelley <mhklinux@outlook.com>
Link: https://lore.kernel.org/r/20240122170956.496436-1-mhklinux@outlook.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Inside scsi_eh_wakeup(), scsi_host_busy() is called & checked with host
lock every time for deciding if error handler kthread needs to be waken up.
This can be too heavy in case of recovery, such as:
- N hardware queues
- queue depth is M for each hardware queue
- each scsi_host_busy() iterates over (N * M) tag/requests
If recovery is triggered in case that all requests are in-flight, each
scsi_eh_wakeup() is strictly serialized, when scsi_eh_wakeup() is called
for the last in-flight request, scsi_host_busy() has been run for (N * M -
1) times, and request has been iterated for (N*M - 1) * (N * M) times.
If both N and M are big enough, hard lockup can be triggered on acquiring
host lock, and it is observed on mpi3mr(128 hw queues, queue depth 8169).
Fix the issue by calling scsi_host_busy() outside the host lock. We don't
need the host lock for getting busy count because host the lock never
covers that.
[mkp: Drop unnecessary 'busy' variables pointed out by Bart]
Cc: Ewan Milne <emilne@redhat.com>
Fixes: 6eb045e092ef ("scsi: core: avoid host-wide host_busy counter for scsi_mq")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20240112070000.4161982-1-ming.lei@redhat.com
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Sathya Prakash Veerichetty <safhya.prakash@broadcom.com>
Tested-by: Sathya Prakash Veerichetty <safhya.prakash@broadcom.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Pull in staged fixes for 6.8.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The variable 'rb' is being assigned a value but it isn't being read
afterwards. The assignment is redundant and so 'rb' can be removed.
Cleans up clang scan build warning:
warning: Although the value stored to 'rb' is used in the enclosing
expression, the value is never actually read from 'rb'[deadcode.DeadStores]
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20240116112606.2263738-1-colin.i.king@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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virtqueue_enable_cb() will call virtqueue_poll() which will check if queue
is broken at beginning, so remove the virtqueue_is_broken() call
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Link: https://lore.kernel.org/r/20240116045836.12475-1-lirongqing@baidu.com
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Clang static complains that Value stored to 'status' is never read. Return
'status' rather than 'SCI_SUCCESS'.
Fixes: f1f52e75939b ("isci: uplevel request infrastructure")
Signed-off-by: Su Hui <suhui@nfschina.com>
Link: https://lore.kernel.org/r/20240112041926.3924315-1-suhui@nfschina.com
Reviewed-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Pull SCSI updates from James Bottomley:
"Final round of fixes that came in too late to send in the first
request.
It's nine bug fixes and one version update (because of a bug fix) and
one set of PCI ID additions. There's one bug fix in the core which is
really a one liner (except that an additional sdev pointer was added
for convenience) and the rest are in drivers"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: target: core: Add TMF to tmr_list handling
scsi: core: Kick the requeue list after inserting when flushing
scsi: fnic: unlock on error path in fnic_queuecommand()
scsi: fcoe: Fix unsigned comparison with zero in store_ctlr_mode()
scsi: mpi3mr: Fix mpi3mr_fw.c kernel-doc warnings
scsi: smartpqi: Bump driver version to 2.1.26-030
scsi: smartpqi: Fix logical volume rescan race condition
scsi: smartpqi: Add new controller PCI IDs
scsi: ufs: qcom: Remove unnecessary goto statement from ufs_qcom_config_esi()
scsi: ufs: core: Remove the ufshcd_hba_exit() call from ufshcd_async_scan()
scsi: ufs: core: Simplify power management during async scan
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When libata calls ata_link_abort() to abort all ata queued commands, it
calls blk_abort_request() on the SCSI command representing each QC.
This causes scsi_timeout() to be called, which calls scsi_eh_scmd_add() for
each SCSI command.
scsi_eh_scmd_add() sets the SCSI host to state recovery, and then adds the
command to shost->eh_cmd_q.
This will wake up the SCSI EH, and eventually the libata EH strategy
handler will be called, which calls scsi_eh_flush_done_q() to either flush
retry or flush finish each failed command.
The commands that are flush retried by scsi_eh_flush_done_q() are done so
using scsi_queue_insert().
Before commit 8b566edbdbfb ("scsi: core: Only kick the requeue list if
necessary"), __scsi_queue_insert() called blk_mq_requeue_request() with the
second argument set to true, indicating that it should always kick/run the
requeue list after inserting.
After commit 8b566edbdbfb ("scsi: core: Only kick the requeue list if
necessary"), __scsi_queue_insert() does not kick/run the requeue list after
inserting, if the current SCSI host state is recovery (which is the case in
the libata example above).
This optimization is probably fine in most cases, as I can only assume that
most often someone will eventually kick/run the queues.
However, that is not the case for scsi_eh_flush_done_q(), where we can see
that the request gets inserted to the requeue list, but the queue is never
started after the request has been inserted, leading to the block layer
waiting for the completion of command that never gets to run.
Since scsi_eh_flush_done_q() is called by SCSI EH context, the SCSI host
state is most likely always in recovery when this function is called.
Thus, let scsi_eh_flush_done_q() explicitly kick the requeue list after
inserting a flush retry command, so that scsi_eh_flush_done_q() keeps the
same behavior as before commit 8b566edbdbfb ("scsi: core: Only kick the
requeue list if necessary").
Simple reproducer for the libata example above:
$ hdparm -Y /dev/sda
$ echo 1 > /sys/class/scsi_device/0\:0\:0\:0/device/delete
Fixes: 8b566edbdbfb ("scsi: core: Only kick the requeue list if necessary")
Reported-by: Kevin Locke <kevin@kevinlocke.name>
Closes: https://lore.kernel.org/linux-scsi/ZZw3Th70wUUvCiCY@kevinlocke.name/
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Link: https://lore.kernel.org/r/20240111120533.3612509-1-cassel@kernel.org
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Call spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags) before
returning.
Fixes: c81df08cd294 ("scsi: fnic: Add support for multiqueue (MQ) in fnic driver")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/5360fa20-74bc-4c22-a78e-ea8b18c5410d@moroto.mountain
Reviewed-by: Karan Tilak Kumar <kartilak@cisco.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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ctlr->mode is of unsigned type, it is never less than zero.
Fix this by using an extra variable called 'res', to store return value
from sysfs_match_string() and assign that to ctlr->mode on the success
path.
Fixes: edc22a7c8688 ("scsi: fcoe: Use sysfs_match_string() over fcoe_parse_mode()")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Link: https://lore.kernel.org/r/20240102085245.600570-1-harshit.m.mogalapalli@oracle.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Use correct format for function return values.
Delete blank lines that are reported as "bad line:".
mpi3mr_fw.c:482: warning: No description found for return value of 'mpi3mr_get_reply_desc'
mpi3mr_fw.c:1066: warning: bad line:
mpi3mr_fw.c:1109: warning: bad line:
mpi3mr_fw.c:1249: warning: No description found for return value of 'mpi3mr_revalidate_factsdata'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20231221053113.32191-1-rdunlap@infradead.org
Cc: Sathya Prakash Veerichetty <sathya.prakash@broadcom.com>
Cc: Kashyap Desai <kashyap.desai@broadcom.com>
Cc: Sumit Saxena <sumit.saxena@broadcom.com>
Cc: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Cc: <mpi3mr-linuxdrv.pdl@broadcom.com>
Cc: James E.J. Bottomley <jejb@linux.ibm.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: <linux-scsi@vger.kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Reviewed-by: Mahesh Rajashekhara <mahesh.rajashekhara@microchip.com>
Reviewed-by: Murthy Bhat <Murthy.Bhat@microchip.com>
Reviewed-by: Scott Benesh <scott.benesh@microchip.com>
Reviewed-by: Scott Teel <scott.teel@microchip.com>
Reviewed-by: Mike McGowen <mike.mcgowen@microchip.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microchip.com>
Signed-off-by: Don Brace <don.brace@microchip.com>
Link: https://lore.kernel.org/r/20231219193653.277553-4-don.brace@microchip.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Correct rescan flag race condition.
Multiple conditions are being evaluated before notifying OS to do a rescan.
Driver will skip rescanning the device if any one of the following
conditions are met:
- Devices that have not yet been added to the OS or devices that have been
removed.
- Devices which are already marked for removal or in the phase of removal.
Under very rare conditions, after logical volume size expansion, the OS
still sees the size of the logical volume which was before expansion.
The rescan flag in the driver is used to signal the need for a logical
volume rescan. A race condition can occur in the driver, and it leads to
one thread overwriting the flag inadvertently. As a result, driver is not
notifying the OS SML to rescan the logical volume.
Move device->rescan update into new function pqi_mark_volumes_for_rescan()
and protect with a spin lock.
Move check for device->rescan into new function pqi_volume_rescan_needed()
and protect function call with a spin_lock.
Reviewed-by: Scott Teel <scott.teel@microchip.com>
Reviewed-by: Scott Benesh <scott.benesh@microchip.com>
Reviewed-by: Mike McGowen <mike.mcgowen@microchip.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microchip.com>
Co-developed-by: Murthy Bhat <Murthy.Bhat@microchip.com>
Signed-off-by: Murthy Bhat <Murthy.Bhat@microchip.com>
Signed-off-by: Mahesh Rajashekhara <mahesh.rajashekhara@microchip.com>
Signed-off-by: Don Brace <don.brace@microchip.com>
Link: https://lore.kernel.org/r/20231219193653.277553-3-don.brace@microchip.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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All PCI ID entries in Hex.
Add PCI IDs for Cisco controllers:
VID / DID / SVID / SDID
---- ---- ---- ----
Cisco 24G TriMode M1 RAID 4GB FBWC 32D 9005 / 028f / 1137 / 02f8
Cisco 24G TriMode M1 RAID 4GB FBWC 16D 9005 / 028f / 1137 / 02f9
Cisco 24G TriMode M1 HBA 16D 9005 / 028f / 1137 / 02fa
Add PCI IDs for CloudNine controllers:
VID / DID / SVID / SDID
---- ---- ---- ----
SmartRAID P7604N-16i 9005 / 028f / 1f51 / 100e
SmartRAID P7604N-8i 9005 / 028f / 1f51 / 100f
SmartRAID P7504N-16i 9005 / 028f / 1f51 / 1010
SmartRAID P7504N-8i 9005 / 028f / 1f51 / 1011
SmartRAID P7504N-8i 9005 / 028f / 1f51 / 1043
SmartHBA P6500-8i 9005 / 028f / 1f51 / 1044
SmartRAID P7504-8i 9005 / 028f / 1f51 / 1045
Reviewed-by: Murthy Bhat <Murthy.Bhat@microchip.com>
Reviewed-by: Mahesh Rajashekhara <mahesh.rajashekhara@microchip.com>
Reviewed-by: Scott Teel <scott.teel@microchip.com>
Reviewed-by: Scott Benesh <scott.benesh@microchip.com>
Reviewed-by: Mike McGowen <mike.mcgowen@microchip.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microchip.com>
Signed-off-by: David Strahan <david.strahan@microchip.com>
Signed-off-by: Don Brace <don.brace@microchip.com>
Link: https://lore.kernel.org/r/20231219193653.277553-2-don.brace@microchip.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Pull virtio updates from Michael Tsirkin:
- vdpa/mlx5: support for resumable vqs
- virtio_scsi: mq_poll support
- 3virtio_pmem: support SHMEM_REGION
- virtio_balloon: stay awake while adjusting balloon
- virtio: support for no-reset virtio PCI PM
- Fixes, cleanups
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vdpa/mlx5: Add mkey leak detection
vdpa/mlx5: Introduce reference counting to mrs
vdpa/mlx5: Use vq suspend/resume during .set_map
vdpa/mlx5: Mark vq state for modification in hw vq
vdpa/mlx5: Mark vq addrs for modification in hw vq
vdpa/mlx5: Introduce per vq and device resume
vdpa/mlx5: Allow modifying multiple vq fields in one modify command
vdpa/mlx5: Expose resumable vq capability
vdpa: Block vq property changes in DRIVER_OK
vdpa: Track device suspended state
scsi: virtio_scsi: Add mq_poll support
virtio_pmem: support feature SHMEM_REGION
virtio_balloon: stay awake while adjusting balloon
vdpa: Remove usage of the deprecated ida_simple_xx() API
virtio: Add support for no-reset virtio PCI PM
virtio_net: fix missing dma unmap for resize
vhost-vdpa: account iommu allocations
vdpa: Fix an error handling path in eni_vdpa_probe()
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This adds polling support to virtio-scsi. It's based on and works similar
to virtblk support where we add a module param to specify the number of
poll queues then subtract to calculate the IO queues.
When using 8 poll queues and a vhost worker per queue we see 4K IOPs
with fio:
fio --filename=/dev/sda --direct=1 --rw=randread --bs=4k \
--ioengine=io_uring --hipri --iodepth=128 --numjobs=$NUM_JOBS
increase like:
jobs base poll
1 207K 296K
2 392K 552K
3 581K 860K
4 765K 1235K
5 936K 1598K
6 1104K 1880K
7 1253K 2095K
8 1311k 2187K
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Message-Id: <20231214052649.57743-1-michael.christie@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing updates from Steven Rostedt:
- Allow kernel trace instance creation to specify what events are
created
Inside the kernel, a subsystem may create a tracing instance that it
can use to send events to user space. This sub-system may not care
about the thousands of events that exist in eventfs. Allow the
sub-system to specify what sub-systems of events it cares about, and
only those events are exposed to this instance.
- Allow the ring buffer to be broken up into bigger sub-buffers than
just the architecture page size.
A new tracefs file called "buffer_subbuf_size_kb" is created. The
user can now specify a minimum size the sub-buffer may be in
kilobytes. Note, that the implementation currently make the
sub-buffer size a power of 2 pages (1, 2, 4, 8, 16, ...) but the user
only writes in kilobyte size, and the sub-buffer will be updated to
the next size that it will can accommodate it. If the user writes in
10, it will change the size to be 4 pages on x86 (16K), as that is
the next available size that can hold 10K pages.
- Update the debug output when a corrupt time is detected in the ring
buffer. If the ring buffer detects inconsistent timestamps, there's a
debug config options that will dump the contents of the meta data of
the sub-buffer that is used for debugging. Add some more information
to this dump that helps with debugging.
- Add more timestamp debugging checks (only triggers when the config is
enabled)
- Increase the trace_seq iterator to 2 page sizes.
- Allow strings written into tracefs_marker to be larger. Up to just
under 2 page sizes (based on what trace_seq can hold).
- Increase the trace_maker_raw write to be as big as a sub-buffer can
hold.
- Remove 32 bit time stamp logic, now that the rb_time_cmpxchg() has
been removed.
- More selftests were added.
- Some code clean ups as well.
* tag 'trace-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (29 commits)
ring-buffer: Remove stale comment from ring_buffer_size()
tracing histograms: Simplify parse_actions() function
tracing/selftests: Remove exec permissions from trace_marker.tc test
ring-buffer: Use subbuf_order for buffer page masking
tracing: Update subbuffer with kilobytes not page order
ringbuffer/selftest: Add basic selftest to test changing subbuf order
ring-buffer: Add documentation on the buffer_subbuf_order file
ring-buffer: Just update the subbuffers when changing their allocation order
ring-buffer: Keep the same size when updating the order
tracing: Stop the tracing while changing the ring buffer subbuf size
tracing: Update snapshot order along with main buffer order
ring-buffer: Make sure the spare sub buffer used for reads has same size
ring-buffer: Do no swap cpu buffers if order is different
ring-buffer: Clear pages on error in ring_buffer_subbuf_order_set() failure
ring-buffer: Read and write to ring buffers with custom sub buffer size
ring-buffer: Set new size of the ring buffer sub page
ring-buffer: Add interface for configuring trace sub buffer size
ring-buffer: Page size per ring buffer
ring-buffer: Have ring_buffer_print_page_header() be able to access ring_buffer_iter
ring-buffer: Check if absolute timestamp goes backwards
...
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A trace instance may only need to enable specific events. As the eventfs
directory of an instance currently creates all events which adds overhead,
allow internal instances to be created with just the events in systems
that they care about. This currently only deals with systems and not
individual events, but this should bring down the overhead of creating
instances for specific use cases quite bit.
The trace_array_get_by_name() now has another parameter "systems". This
parameter is a const string pointer of a comma/space separated list of
event systems that should be created by the trace_array. (Note if the
trace_array already exists, this parameter is ignored).
The list of systems is saved and if a module is loaded, its events will
not be added unless the system for those events also match the systems
string.
Link: https://lore.kernel.org/linux-trace-kernel/20231213093701.03fddec0@gandalf.local.home
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Arun Easi <aeasi@marvell.com>
Cc: Daniel Wagner <dwagner@suse.de>
Tested-by: Dmytro Maluka <dmaluka@chromium.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull pci updates from Bjorn Helgaas:
"Enumeration:
- Reserve ECAM so we don't assign it to PCI BARs; this works around
bugs where BIOS included ECAM in a PNP0A03 host bridge window,
didn't reserve it via a PNP0C02 motherboard device, and didn't
allocate space for SR-IOV VF BARs (Bjorn Helgaas)
- Add MMCONFIG/ECAM debug logging (Bjorn Helgaas)
- Rename 'MMCONFIG' to 'ECAM' to match spec usage (Bjorn Helgaas)
- Log device type (Root Port, Switch Port, etc) during enumeration
(Bjorn Helgaas)
- Log bridges before downstream devices so the dmesg order is more
logical (Bjorn Helgaas)
- Log resource names (BAR 0, VF BAR 0, bridge window, etc)
consistently instead of a mix of names and "reg 0x10" (Puranjay
Mohan, Bjorn Helgaas)
- Fix 64GT/s effective data rate calculation to use 1b/1b encoding
rather than the 8b/10b or 128b/130b used by lower rates (Ilpo
Järvinen)
- Use PCI_HEADER_TYPE_* instead of literals in x86, powerpc, SCSI
lpfc (Ilpo Järvinen)
- Clean up open-coded PCIBIOS return code mangling (Ilpo Järvinen)
Resource management:
- Restructure pci_dev_for_each_resource() to avoid computing the
address of an out-of-bounds array element (the bounds check was
performed later so the element was never actually *read*, but it's
nicer to avoid even computing an out-of-bounds address) (Andy
Shevchenko)
Driver binding:
- Convert pci-host-common.c platform .remove() callback to
.remove_new() returning 'void' since it's not useful to return
error codes here (Uwe Kleine-König)
- Convert exynos, keystone, kirin from .remove() to .remove_new(),
which returns void instead of int (Uwe Kleine-König)
- Drop unused struct pci_driver.node member (Mathias Krause)
Virtualization:
- Add ACS quirk for more Zhaoxin Root Ports (LeoLiuoc)
Error handling:
- Log AER errors as "Correctable" (not "Corrected") or
"Uncorrectable" to match spec terminology (Bjorn Helgaas)
- Decode Requester ID when no error info found instead of printing
the raw hex value (Bjorn Helgaas)
Endpoint framework:
- Use a unique test pattern for each BAR in the pci_endpoint_test to
make it easier to debug address translation issues (Niklas Cassel)
Broadcom STB PCIe controller driver:
- Add DT property "brcm,clkreq-mode" and driver support for different
CLKREQ# modes to make ASPM L1.x states possible (Jim Quinlan)
Freescale Layerscape PCIe controller driver:
- Add suspend/resume support for Layerscape LS1043a and LS1021a,
including software-managed PME_Turn_Off and transitions between L0,
L2/L3_Ready Link states (Frank Li)
MediaTek PCIe controller driver:
- Clear MSI interrupt status before handler to avoid missing MSIs
that occur after the handler (qizhong cheng)
MediaTek PCIe Gen3 controller driver:
- Update mediatek-gen3 translation window setup to handle MMIO space
that is not a power of two in size (Jianjun Wang)
Qualcomm PCIe controller driver:
- Increase qcom iommu-map maxItems to accommodate SDX55 (five
entries) and SDM845 (sixteen entries) (Krzysztof Kozlowski)
- Describe qcom,pcie-sc8180x clocks and resets accurately (Krzysztof
Kozlowski)
- Describe qcom,pcie-sm8150 clocks and resets accurately (Krzysztof
Kozlowski)
- Correct the qcom "reset-name" property, previously incorrectly
called "reset-names" (Krzysztof Kozlowski)
- Document qcom,pcie-sm8650, based on qcom,pcie-sm8550 (Neil
Armstrong)
Renesas R-Car PCIe controller driver:
- Replace of_device.h with explicit of.h include to untangle header
usage (Rob Herring)
- Add DT and driver support for optional miniPCIe 1.5v and 3.3v
regulators on KingFisher (Wolfram Sang)
SiFive FU740 PCIe controller driver:
- Convert fu740 CONFIG_PCIE_FU740 dependency from SOC_SIFIVE to
ARCH_SIFIVE (Conor Dooley)
Synopsys DesignWare PCIe controller driver:
- Align iATU mapping for endpoint MSI-X (Niklas Cassel)
- Drop "host_" prefix from struct dw_pcie_host_ops members (Yoshihiro
Shimoda)
- Drop "ep_" prefix from struct dw_pcie_ep_ops members (Yoshihiro
Shimoda)
- Rename struct dw_pcie_ep_ops.func_conf_select() to
.get_dbi_offset() to be more descriptive (Yoshihiro Shimoda)
- Add Endpoint DBI accessors to encapsulate offset lookups (Yoshihiro
Shimoda)
TI J721E PCIe driver:
- Add j721e DT and driver support for 'num-lanes' for devices that
support x1, x2, or x4 Links (Matt Ranostay)
- Add j721e DT compatible strings and driver support for j784s4 (Matt
Ranostay)
- Make TI J721E Kconfig depend on ARCH_K3 since the hardware is
specific to those TI SoC parts (Peter Robinson)
TI Keystone PCIe controller driver:
- Hold power management references to all PHYs while enabling them to
avoid a race when one provides clocks to others (Siddharth
Vadapalli)
Xilinx XDMA PCIe controller driver:
- Remove redundant dev_err(), since platform_get_irq() and
platform_get_irq_byname() already log errors (Yang Li)
- Fix uninitialized symbols in xilinx_pl_dma_pcie_setup_irq()
(Krzysztof Wilczyński)
- Fix xilinx_pl_dma_pcie_init_irq_domain() error return when
irq_domain_add_linear() fails (Harshit Mogalapalli)
MicroSemi Switchtec management driver:
- Do dma_mrpc cleanup during switchtec_pci_remove() to match its devm
ioremapping in switchtec_pci_probe(). Previously the cleanup was
done in stdev_release(), which used stale pointers if stdev->cdev
happened to be open when the PCI device was removed (Daniel
Stodden)
Miscellaneous:
- Convert interrupt terminology from "legacy" to "INTx" to be more
specific and match spec terminology (Damien Le Moal)
- In dw-xdata-pcie, pci_endpoint_test, and vmd, replace usage of
deprecated ida_simple_*() API with ida_alloc() and ida_free()
(Christophe JAILLET)"
* tag 'pci-v6.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (97 commits)
PCI: Fix kernel-doc issues
PCI: brcmstb: Configure HW CLKREQ# mode appropriate for downstream device
dt-bindings: PCI: brcmstb: Add property "brcm,clkreq-mode"
PCI: mediatek-gen3: Fix translation window size calculation
PCI: mediatek: Clear interrupt status before dispatching handler
PCI: keystone: Fix race condition when initializing PHYs
PCI: xilinx-xdma: Fix error code in xilinx_pl_dma_pcie_init_irq_domain()
PCI: xilinx-xdma: Fix uninitialized symbols in xilinx_pl_dma_pcie_setup_irq()
PCI: rcar-gen4: Fix -Wvoid-pointer-to-enum-cast error
PCI: iproc: Fix -Wvoid-pointer-to-enum-cast warning
PCI: dwc: Add dw_pcie_ep_{read,write}_dbi[2] helpers
PCI: dwc: Rename .func_conf_select to .get_dbi_offset in struct dw_pcie_ep_ops
PCI: dwc: Rename .ep_init to .init in struct dw_pcie_ep_ops
PCI: dwc: Drop host prefix from struct dw_pcie_host_ops members
misc: pci_endpoint_test: Use a unique test pattern for each BAR
PCI: j721e: Make TI J721E depend on ARCH_K3
PCI: j721e: Add TI J784S4 PCIe configuration
PCI/AER: Use explicit register sizes for struct members
PCI/AER: Decode Requester ID when no error info found
PCI/AER: Use 'Correctable' and 'Uncorrectable' spec terms for errors
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Replace literal 0x80 with PCI_HEADER_TYPE_MFD.
Link: https://lore.kernel.org/r/20231124090919.23687-4-ilpo.jarvinen@linux.intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Pull SCSI updates from James Bottomley:
"Updates to the usual drivers (ufs, mpi3mr, mpt3sas, lpfc, fnic,
hisi_sas, arcmsr, ) plus the usual assorted minor fixes and updates.
This time around there's only a single line update to the core, so
nothing major and barely anything minor"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (135 commits)
scsi: ufs: core: Simplify ufshcd_auto_hibern8_update()
scsi: ufs: core: Rename ufshcd_auto_hibern8_enable() and make it static
scsi: ufs: qcom: Fix ESI vector mask
scsi: ufs: host: Fix kernel-doc warning
scsi: hisi_sas: Correct the number of global debugfs registers
scsi: hisi_sas: Rollback some operations if FLR failed
scsi: hisi_sas: Check before using pointer variables
scsi: hisi_sas: Replace with standard error code return value
scsi: hisi_sas: Set .phy_attached before notifing phyup event HISI_PHYE_PHY_UP_PM
scsi: ufs: core: Add sysfs node for UFS RTC update
scsi: ufs: core: Add UFS RTC support
scsi: ufs: core: Add ufshcd_is_ufs_dev_busy()
scsi: ufs: qcom: Remove unused definitions
scsi: ufs: qcom: Use ufshcd_rmwl() where applicable
scsi: ufs: qcom: Remove support for host controllers older than v2.0
scsi: ufs: qcom: Simplify ufs_qcom_{assert/deassert}_reset
scsi: ufs: qcom: Initialize cycles_in_1us variable in ufs_qcom_set_core_clk_ctrl()
scsi: ufs: qcom: Sort includes alphabetically
scsi: ufs: qcom: Remove unused ufs_qcom_hosts struct array
scsi: ufs: qcom: Use dev_err_probe() to simplify error handling of devm_gpiod_get_optional()
...
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chenxiang <chenxiang66@hisilicon.com> says:
This series contain some fixes and cleanups including:
- Set .phy_attached before notifying phyup event HISI_PHYEE_PHY_UP_PM;
- Use standard error code instead of hardcode;
- Check before using pointer variable;
- Rollback some operations if FLR failed;
- Correct the number of global debugfs registers;
Link: https://lore.kernel.org/r/1702525516-51258-1-git-send-email-chenxiang66@hisilicon.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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In function debugfs_debugfs_snapshot_global_reg_v3_hw() it uses
debugfs_axi_reg.count (which is the number of axi debugfs registers) to
acquire the number of global debugfs registers.
Use debugfs_global_reg.count to acquire the number of global debugfs
registers instead.
Fixes: 623a4b6d5c2a ("scsi: hisi_sas: Move debugfs code to v3 hw driver")
Signed-off-by: Yihang Li <liyihang9@huawei.com>
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Link: https://lore.kernel.org/r/1702525516-51258-6-git-send-email-chenxiang66@hisilicon.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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We obtain the semaphore and set HISI_SAS_RESETTING_BIT in
hisi_sas_reset_prepare_v3_hw(), block the scsi host and set
HISI_SAS_REJECT_CMD_BIT in hisi_sas_controller_reset_prepare(), released
them in hisi_sas_controller_reset_done(). However, if the HW reset failure
in FLR results in early return, the semaphore and flag bits will not be
release.
Rollback some operations including clearing flags / releasing semaphore
when FLR is failed.
Fixes: e5ea48014adc ("scsi: hisi_sas: Implement handlers of PCIe FLR for v3 hw")
Signed-off-by: Yihang Li <liyihang9@huawei.com>
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Link: https://lore.kernel.org/r/1702525516-51258-5-git-send-email-chenxiang66@hisilicon.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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In commit 4b329abc9180 ("scsi: hisi_sas: Move slot variable definition in
hisi_sas_abort_task()"), we move the variables slot to the function head.
However, the variable slot may be NULL, we should check it in each branch.
Fixes: 4b329abc9180 ("scsi: hisi_sas: Move slot variable definition in hisi_sas_abort_task()")
Signed-off-by: Yihang Li <liyihang9@huawei.com>
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Link: https://lore.kernel.org/r/1702525516-51258-4-git-send-email-chenxiang66@hisilicon.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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In function hisi_sas_controller_prereset(), -ENOSYS (Function not
implemented) should be returned if the driver does not support .soft_reset.
Returns -EPERM (Operation not permitted) if HISI_SAS_RESETTING_BIT is
already be set.
In function _suspend_v3_hw(), returns -EPERM (Operation not permitted) if
HISI_SAS_RESETTING_BIT is already be set.
Fixes: 4522204ab218 ("scsi: hisi_sas: tidy host controller reset function a bit")
Signed-off-by: Yihang Li <liyihang9@huawei.com>
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Link: https://lore.kernel.org/r/1702525516-51258-3-git-send-email-chenxiang66@hisilicon.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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HISI_PHYE_PHY_UP_PM
Currently in directly attached scenario, the phyup event
HISI_PHYE_PHY_UP_PM is notified before .phy_attached is set - this may
cause the phyup work hisi_sas_bytes_dmaed() execution failed and the
attached device will not be found.
To fix it, set .phy_attached before notifing phyup event.
Signed-off-by: Yihang Li <liyihang9@huawei.com>
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Link: https://lore.kernel.org/r/1702525516-51258-2-git-send-email-chenxiang66@hisilicon.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Instead of copying @buf into a new buffer and carefully managing its
newline/null-terminating status, we can just use sysfs_match_string() as it
uses sysfs_streq() internally which handles newline/null-term:
| /**
| * sysfs_streq - return true if strings are equal, modulo trailing newline
| * @s1: one string
| * @s2: another string
| *
| * This routine returns true iff two strings are equal, treating both
| * NUL and newline-then-NUL as equivalent string terminations. It's
| * geared for use with sysfs input strings, which generally terminate
| * with newlines but are compared against values without newlines.
| */
| bool sysfs_streq(const char *s1, const char *s2)
| ...
Then entirely drop the now unused fcoe_parse_mode(), being careful to
change if condition from checking for FIP_CONN_TYPE_UNKNOWN to < 0 as
sysfs_match_string() can return -EINVAL. Also check explicitly if
ctlr->mode is equal to FIP_CONN_TYPE_UNKNOWN -- this is probably preferred
to "<=" as the behavior is more obvious while maintaining functionality.
To get the compiler not to complain, make fip_conn_type_names const char *
const. Perhaps, this should also be done for fcf_state_names.
This also removes an instance of strncpy() which helps [1].
Link: https://github.com/KSPP/linux/issues/90 [1]
Cc: <linux-hardening@vger.kernel.org>
Signed-off-by: Justin Stitt <justinstitt@google.com>
Link: https://lore.kernel.org/r/20231212-strncpy-drivers-scsi-fcoe-fcoe_sysfs-c-v2-1-1f2d6b2fc409@google.com
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Justin Tee <justintee8345@gmail.com> says:
Update lpfc to revision 14.2.0.17
This patch set contains bug fixes for the VMID feature.
The patches were cut against Martin's 6.8/scsi-queue tree.
Link: https://lore.kernel.org/r/20231207224039.35466-1-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Update lpfc version to 14.2.0.17
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20231207224039.35466-5-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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completes
If priority tagging is set in the service parameters of a FLOGI cmpl, then
we update the vmid_flag. In the current logic, if a follow up FLOGI cmpl
updates its service parameters such that priority tagging is no longer set,
then the vmid_flag ends up keeping stale data.
Fix by ensuring we clear the vmid_flag member during lpfc_reinit_vmid, and
check the priority tagging service parameter after reinitialization of the
vmid data structures.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20231207224039.35466-4-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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After a follow up FDISC cmpl, an NPIV's VMID data structures are not
updated.
Fix by calling lpfc_reinit_vmid and copying the physical port's vmid_flag
to the NPIV's vmid_flag in the NPIV registration cmpl code path.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20231207224039.35466-3-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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VMID driver support is a load time configuration setting. Thus, change
sysfs attributes to read only.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20231207224039.35466-2-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Karan Tilak Kumar <kartilak@cisco.com> says:
Hi Martin, reviewers,
This cover letter describes the feature: add support for
multiqueue (MQ) to fnic driver.
Background: The Virtual Interface Card (VIC) firmware exposes several
queues that can be configured for sending IOs and receiving IO
responses. Unified Computing System Manager (UCSM) and Intersight
Manager (IMM) allows users to configure the number of queues to be
used for IOs.
The number of IO queues to be used is stored in a configuration file
by the VIC firmware. The fNIC driver reads the configuration file and
sets the number of queues to be used. Previously, the driver was
hard-coded to use only one queue. With this set of changes, the fNIC
driver will configure itself to use multiple queues. This feature
takes advantage of the block multiqueue layer to parallelize IOs being
sent out of the VIC card.
Here's a brief description of some of the salient patches:
- vnic_scsi.h needs to be in sync with VIC firmware to be able to read
the number of queues from the firmware config file. A patch has been
created for this.
- In an environment with many fnics (like we see in our customer
environments), it is hard to distinguish which fnic is printing logs.
Therefore, an fnic number has been included in the logs.
- read the number of queues from the firmware config file.
- include definitions in fnic.h to support multiqueue.
- modify the interrupt service routines (ISRs) to read from the
correct registers. The numbers that are used here come from discussions
with the VIC firmware team.
- track IO statistics for different queues.
- remove usage of host_lock, and only use fnic_lock in the fnic driver.
- use a hardware queue based spinlock to protect io_req.
- replace the hard-coded zeroth queue with a hardware queue number.
This presents a bulk of the changes.
- modify the definition of fnic_queuecommand to accept multiqueue tags.
- improve log messages, and indicate fnic number and multiqueue tags for
effective debugging.
Even though the patches have been made into a series, some patches are
heavier than others.
But, every effort has been made to keep the purpose of each patch as
a single-purpose, and to compile cleanly.
This patchset has been tested as a whole. Therefore, the tested-by fields
have been added only to two patches
in the set. All the individual patches compile cleanly. However,
I've refrained from adding tested-by to
most of the patches, so as to not mislead the reviewer/reader.
A brief note on the unit tests:
1. Increase number of queues to 64. Load driver. Run IOs via Medusa.
12+ hour run successful.
2. Configure multipathing, and run link flaps on single link.
IOs drop briefly, but pick up as expected.
3. Configure multipathing, and run link flaps on two links, with a
30 second delay in between. IOs drop briefly, but pick up as expected.
Repeat the above tests with 1 queue and 32 queues. All tests were
successful.
Please consider this patch series for the next merge window.
Link: https://lore.kernel.org/r/20231211173617.932990-1-kartilak@cisco.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Increment driver version for multiqueue (MQ).
Reviewed-by: Sesidhar Baddela <sebaddel@cisco.com>
Reviewed-by: Arulprabhu Ponnusamy <arulponn@cisco.com>
Signed-off-by: Karan Tilak Kumar <kartilak@cisco.com>
Link: https://lore.kernel.org/r/20231211173617.932990-14-kartilak@cisco.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Improve existing logs by adding fnic number, hardware queue, tag, and mqtag
in the prints. Add logs with the above elements for effective debugging.
Reviewed-by: Sesidhar Baddela <sebaddel@cisco.com>
Reviewed-by: Arulprabhu Ponnusamy <arulponn@cisco.com>
Tested-by: Karan Tilak Kumar <kartilak@cisco.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Karan Tilak Kumar <kartilak@cisco.com>
Link: https://lore.kernel.org/r/20231211173617.932990-13-kartilak@cisco.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Implement support for MQ in fnic driver:
The block multiqueue layer issues IO to the fnic driver with an MQ tag. Use
the mqtag and derive a tag from it. Derive the hardware queue from the
mqtag and use it in all paths. Modify queuecommand to handle mqtag.
Replace wq and cq indices to support MQ. Replace the zeroth queue with a
hardware queue. Implement spin locks on a per hardware queue basis.
Replace io_lock with per hardware queue spinlock. Implement out of range
tag checks.
Allocate an io_req_table to track status of the io_req.
Test the driver by building it, loading it, and configuring 64 queues in
UCSM. Issue IOs using Medusa on multiple fnics. Enable/disable links to
exercise the abort and clean up path.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202310300032.2awCqkfn-lkp@intel.com/
Reviewed-by: Sesidhar Baddela <sebaddel@cisco.com>
Reviewed-by: Arulprabhu Ponnusamy <arulponn@cisco.com>
Tested-by: Karan Tilak Kumar <kartilak@cisco.com>
Signed-off-by: Karan Tilak Kumar <kartilak@cisco.com>
Link: https://lore.kernel.org/r/20231211173617.932990-12-kartilak@cisco.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Set map_queues in the fnic_host_template to fnic_mq_map_queues_cpus.
Define fnic_mq_map_queues_cpus to set cpu assignment to fnic queues.
Refactor code in fnic_probe to enable vnic queues before scsi_add_host.
Modify notify set to the correct index.
Reviewed-by: Sesidhar Baddela <sebaddel@cisco.com>
Reviewed-by: Arulprabhu Ponnusamy <arulponn@cisco.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Signed-off-by: Karan Tilak Kumar <kartilak@cisco.com>
Link: https://lore.kernel.org/r/20231211173617.932990-11-kartilak@cisco.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Remove usage of host_lock. Replace with fnic_lock, where necessary. fnic
does not use host_lock. fnic uses fnic_lock. Use fnic lock to protect fnic
members in fnic_queuecommand. Add log messages in error cases.
Reviewed-by: Sesidhar Baddela <sebaddel@cisco.com>
Reviewed-by: Arulprabhu Ponnusamy <arulponn@cisco.com>
Signed-off-by: Karan Tilak Kumar <kartilak@cisco.com>
Link: https://lore.kernel.org/r/20231211173617.932990-10-kartilak@cisco.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Define an array to track IOs for the different queues, print the IO stats
in fnic get stats data.
Reviewed-by: Sesidhar Baddela <sebaddel@cisco.com>
Reviewed-by: Arulprabhu Ponnusamy <arulponn@cisco.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Karan Tilak Kumar <kartilak@cisco.com>
Link: https://lore.kernel.org/r/20231211173617.932990-9-kartilak@cisco.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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