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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-24 02:12:06 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-24 02:12:06 +0200
commitd5b4bb4d103cd601d8009f2d3a7e44586c9ae7cc (patch)
tree0f3b6da2b66fc7a4278764982279c2815c913010 /drivers/scsi
parentMerge tag 'md-3.5' of git://neil.brown.name/md (diff)
parentMCA: delete all remaining traces of microchannel bus support. (diff)
downloadlinux-d5b4bb4d103cd601d8009f2d3a7e44586c9ae7cc.tar.xz
linux-d5b4bb4d103cd601d8009f2d3a7e44586c9ae7cc.zip
Merge branch 'delete-mca' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
Pull the MCA deletion branch from Paul Gortmaker: "It was good that we could support MCA machines back in the day, but realistically, nobody is using them anymore. They were mostly limited to 386-sx 16MHz CPU and some 486 class machines and never more than 64MB of RAM. Even the enthusiast hobbyist community seems to have dried up close to ten years ago, based on what you can find searching various websites dedicated to the relatively short lived hardware. So lets remove the support relating to CONFIG_MCA. There is no point carrying this forward, wasting cycles doing routine maintenance on it; wasting allyesconfig build time on validating it, wasting I/O on git grep'ping over it, and so on." Let's see if anybody screams. It generally has compiled, and James Bottomley pointed out that there was a MCA extension from NCR that allowed for up to 4GB of memory and PPro-class machines. So in *theory* there may be users out there. But even James (technically listed as a maintainer) doesn't actually have a system, and while Alan Cox claims to have a machine in his cellar that he offered to anybody who wants to take it off his hands, he didn't argue for keeping MCA support either. So we could bring it back. But somebody had better speak up and talk about how they have actually been using said MCA hardware with modern kernels for us to do that. And David already took the patch to delete all the networking driver code (commit a5e371f61ad3: "drivers/net: delete all code/drivers depending on CONFIG_MCA"). * 'delete-mca' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: MCA: delete all remaining traces of microchannel bus support. scsi: delete the MCA specific drivers and driver code serial: delete the MCA specific 8250 support. arm: remove ability to select CONFIG_MCA
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/Kconfig83
-rw-r--r--drivers/scsi/Makefile2
-rw-r--r--drivers/scsi/aha1542.c66
-rw-r--r--drivers/scsi/fd_mcs.c1354
-rw-r--r--drivers/scsi/ibmmca.c2379
-rw-r--r--drivers/scsi/sim710.c124
6 files changed, 5 insertions, 4003 deletions
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index bea04e5d3b51..e9559782d3ec 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -808,19 +808,6 @@ config SCSI_FUTURE_DOMAIN
To compile this driver as a module, choose M here: the
module will be called fdomain.
-config SCSI_FD_MCS
- tristate "Future Domain MCS-600/700 SCSI support"
- depends on MCA_LEGACY && SCSI
- ---help---
- This is support for Future Domain MCS 600/700 MCA SCSI adapters.
- Some PS/2 computers are equipped with IBM Fast SCSI Adapter/A which
- is identical to the MCS 700 and hence also supported by this driver.
- This driver also supports the Reply SB16/SCSI card (the SCSI part).
- It supports multiple adapters in the same system.
-
- To compile this driver as a module, choose M here: the
- module will be called fd_mcs.
-
config SCSI_GDTH
tristate "Intel/ICP (former GDT SCSI Disk Array) RAID Controller support"
depends on (ISA || EISA || PCI) && SCSI && ISA_DMA_API
@@ -890,76 +877,6 @@ config SCSI_GENERIC_NCR53C400
not detect your card. See the file
<file:Documentation/scsi/g_NCR5380.txt> for details.
-config SCSI_IBMMCA
- tristate "IBMMCA SCSI support"
- depends on MCA && SCSI
- ---help---
- This is support for the IBM SCSI adapter found in many of the PS/2
- series computers. These machines have an MCA bus, so you need to
- answer Y to "MCA support" as well and read
- <file:Documentation/mca.txt>.
-
- If the adapter isn't found during boot (a common problem for models
- 56, 57, 76, and 77) you'll need to use the 'ibmmcascsi=<pun>' kernel
- option, where <pun> is the id of the SCSI subsystem (usually 7, but
- if that doesn't work check your reference diskette). Owners of
- model 95 with a LED-matrix-display can in addition activate some
- activity info like under OS/2, but more informative, by setting
- 'ibmmcascsi=display' as an additional kernel parameter. Try "man
- bootparam" or see the documentation of your boot loader about how to
- pass options to the kernel.
-
- To compile this driver as a module, choose M here: the
- module will be called ibmmca.
-
-config IBMMCA_SCSI_ORDER_STANDARD
- bool "Standard SCSI-order"
- depends on SCSI_IBMMCA
- ---help---
- In the PC-world and in most modern SCSI-BIOS-setups, SCSI-hard disks
- are assigned to the drive letters, starting with the lowest SCSI-id
- (physical number -- pun) to be drive C:, as seen from DOS and
- similar operating systems. When looking into papers describing the
- ANSI-SCSI-standard, this assignment of drives appears to be wrong.
- The SCSI-standard follows a hardware-hierarchy which says that id 7
- has the highest priority and id 0 the lowest. Therefore, the host
- adapters are still today everywhere placed as SCSI-id 7 by default.
- In the SCSI-standard, the drive letters express the priority of the
- disk. C: should be the hard disk, or a partition on it, with the
- highest priority. This must therefore be the disk with the highest
- SCSI-id (e.g. 6) and not the one with the lowest! IBM-BIOS kept the
- original definition of the SCSI-standard as also industrial- and
- process-control-machines, like VME-CPUs running under realtime-OSes
- (e.g. LynxOS, OS9) do.
-
- If you like to run Linux on your MCA-machine with the same
- assignment of hard disks as seen from e.g. DOS or OS/2 on your
- machine, which is in addition conformant to the SCSI-standard, you
- must say Y here. This is also necessary for MCA-Linux users who want
- to keep downward compatibility to older releases of the
- IBM-MCA-SCSI-driver (older than driver-release 2.00 and older than
- June 1997).
-
- If you like to have the lowest SCSI-id assigned as drive C:, as
- modern SCSI-BIOSes do, which does not conform to the standard, but
- is widespread and common in the PC-world of today, you must say N
- here. If unsure, say Y.
-
-config IBMMCA_SCSI_DEV_RESET
- bool "Reset SCSI-devices at boottime"
- depends on SCSI_IBMMCA
- ---help---
- By default, SCSI-devices are reset when the machine is powered on.
- However, some devices exist, like special-control-devices,
- SCSI-CNC-machines, SCSI-printer or scanners of older type, that do
- not reset when switched on. If you say Y here, each device connected
- to your SCSI-bus will be issued a reset-command after it has been
- probed, while the kernel is booting. This may cause problems with
- more modern devices, like hard disks, which do not appreciate these
- reset commands, and can cause your system to hang. So say Y only if
- you know that one of your older devices needs it; N is the safe
- answer.
-
config SCSI_IPS
tristate "IBM ServeRAID support"
depends on PCI && SCSI
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index 8deedeaf5608..1a3368b08615 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -75,7 +75,6 @@ obj-$(CONFIG_SCSI_AIC94XX) += aic94xx/
obj-$(CONFIG_SCSI_PM8001) += pm8001/
obj-$(CONFIG_SCSI_ISCI) += isci/
obj-$(CONFIG_SCSI_IPS) += ips.o
-obj-$(CONFIG_SCSI_FD_MCS) += fd_mcs.o
obj-$(CONFIG_SCSI_FUTURE_DOMAIN)+= fdomain.o
obj-$(CONFIG_SCSI_IN2000) += in2000.o
obj-$(CONFIG_SCSI_GENERIC_NCR5380) += g_NCR5380.o
@@ -100,7 +99,6 @@ obj-$(CONFIG_SCSI_SYM53C8XX_2) += sym53c8xx_2/
obj-$(CONFIG_SCSI_ZALON) += zalon7xx.o
obj-$(CONFIG_SCSI_EATA_PIO) += eata_pio.o
obj-$(CONFIG_SCSI_7000FASST) += wd7000.o
-obj-$(CONFIG_SCSI_IBMMCA) += ibmmca.o
obj-$(CONFIG_SCSI_EATA) += eata.o
obj-$(CONFIG_SCSI_DC395x) += dc395x.o
obj-$(CONFIG_SCSI_DC390T) += tmscsim.o
diff --git a/drivers/scsi/aha1542.c b/drivers/scsi/aha1542.c
index ede91f378000..f79c8f9e33a4 100644
--- a/drivers/scsi/aha1542.c
+++ b/drivers/scsi/aha1542.c
@@ -22,7 +22,7 @@
* Added module command-line options
* 19-Jul-99
* Modified by Adam Fritzler
- * Added proper detection of the AHA-1640 (MCA version of AHA-1540)
+ * Added proper detection of the AHA-1640 (MCA, now deleted)
*/
#include <linux/module.h>
@@ -37,8 +37,6 @@
#include <linux/spinlock.h>
#include <linux/isapnp.h>
#include <linux/blkdev.h>
-#include <linux/mca.h>
-#include <linux/mca-legacy.h>
#include <linux/slab.h>
#include <asm/dma.h>
@@ -71,7 +69,7 @@
#define MAXBOARDS 4 /* Increase this and the sizes of the
arrays below, if you need more.. */
-/* Boards 3,4 slots are reserved for ISAPnP/MCA scans */
+/* Boards 3,4 slots are reserved for ISAPnP scans */
static unsigned int bases[MAXBOARDS] __initdata = {0x330, 0x334, 0, 0};
@@ -1009,66 +1007,6 @@ static int __init aha1542_detect(struct scsi_host_template * tpnt)
#endif
/*
- * Find MicroChannel cards (AHA1640)
- */
-#ifdef CONFIG_MCA_LEGACY
- if(MCA_bus) {
- int slot = 0;
- int pos = 0;
-
- for (indx = 0; (slot != MCA_NOTFOUND) && (indx < ARRAY_SIZE(bases)); indx++) {
-
- if (bases[indx])
- continue;
-
- /* Detect only AHA-1640 cards -- MCA ID 0F1F */
- slot = mca_find_unused_adapter(0x0f1f, slot);
- if (slot == MCA_NOTFOUND)
- break;
-
- /* Found one */
- pos = mca_read_stored_pos(slot, 3);
-
- /* Decode address */
- if (pos & 0x80) {
- if (pos & 0x02) {
- if (pos & 0x01)
- bases[indx] = 0x334;
- else
- bases[indx] = 0x234;
- } else {
- if (pos & 0x01)
- bases[indx] = 0x134;
- }
- } else {
- if (pos & 0x02) {
- if (pos & 0x01)
- bases[indx] = 0x330;
- else
- bases[indx] = 0x230;
- } else {
- if (pos & 0x01)
- bases[indx] = 0x130;
- }
- }
-
- /* No need to decode IRQ and Arb level -- those are
- * read off the card later.
- */
- printk(KERN_INFO "Found an AHA-1640 in MCA slot %d, I/O 0x%04x\n", slot, bases[indx]);
-
- mca_set_adapter_name(slot, "Adapter AHA-1640");
- mca_set_adapter_procfn(slot, NULL, NULL);
- mca_mark_as_used(slot);
-
- /* Go on */
- slot++;
- }
-
- }
-#endif
-
- /*
* Hunt for ISA Plug'n'Pray Adaptecs (AHA1535)
*/
diff --git a/drivers/scsi/fd_mcs.c b/drivers/scsi/fd_mcs.c
deleted file mode 100644
index 53bfcaa86f09..000000000000
--- a/drivers/scsi/fd_mcs.c
+++ /dev/null
@@ -1,1354 +0,0 @@
-/* fd_mcs.c -- Future Domain MCS 600/700 (or IBM OEM) driver
- *
- * FutureDomain MCS-600/700 v0.2 03/11/1998 by ZP Gu (zpg@castle.net)
- *
- * This driver is cloned from fdomain.* to specifically support
- * the Future Domain MCS 600/700 MCA SCSI adapters. Some PS/2s
- * also equipped with IBM Fast SCSI Adapter/A which is an OEM
- * of MCS 700.
- *
- * This driver also supports Reply SB16/SCSI card (the SCSI part).
- *
- * What makes this driver different is that this driver is MCA only
- * and it supports multiple adapters in the same system, IRQ
- * sharing, some driver statistics, and maps highest SCSI id to sda.
- * All cards are auto-detected.
- *
- * Assumptions: TMC-1800/18C50/18C30, BIOS >= 3.4
- *
- * LILO command-line options:
- * fd_mcs=<FIFO_COUNT>[,<FIFO_SIZE>]
- *
- * ********************************************************
- * Please see Copyrights/Comments in fdomain.* for credits.
- * Following is from fdomain.c for acknowledgement:
- *
- * Created: Sun May 3 18:53:19 1992 by faith@cs.unc.edu
- * Revised: Wed Oct 2 11:10:55 1996 by r.faith@ieee.org
- * Author: Rickard E. Faith, faith@cs.unc.edu
- * Copyright 1992, 1993, 1994, 1995, 1996 Rickard E. Faith
- *
- * $Id: fdomain.c,v 5.45 1996/10/02 15:13:06 root Exp $
-
- * 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.
-
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
-
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
-
- **************************************************************************
-
- NOTES ON USER DEFINABLE OPTIONS:
-
- DEBUG: This turns on the printing of various debug information.
-
- ENABLE_PARITY: This turns on SCSI parity checking. With the current
- driver, all attached devices must support SCSI parity. If none of your
- devices support parity, then you can probably get the driver to work by
- turning this option off. I have no way of testing this, however, and it
- would appear that no one ever uses this option.
-
- FIFO_COUNT: The host adapter has an 8K cache (host adapters based on the
- 18C30 chip have a 2k cache). When this many 512 byte blocks are filled by
- the SCSI device, an interrupt will be raised. Therefore, this could be as
- low as 0, or as high as 16. Note, however, that values which are too high
- or too low seem to prevent any interrupts from occurring, and thereby lock
- up the machine. I have found that 2 is a good number, but throughput may
- be increased by changing this value to values which are close to 2.
- Please let me know if you try any different values.
- [*****Now a runtime option*****]
-
- RESELECTION: This is no longer an option, since I gave up trying to
- implement it in version 4.x of this driver. It did not improve
- performance at all and made the driver unstable (because I never found one
- of the two race conditions which were introduced by the multiple
- outstanding command code). The instability seems a very high price to pay
- just so that you don't have to wait for the tape to rewind. If you want
- this feature implemented, send me patches. I'll be happy to send a copy
- of my (broken) driver to anyone who would like to see a copy.
-
- **************************************************************************/
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/blkdev.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/ioport.h>
-#include <linux/proc_fs.h>
-#include <linux/delay.h>
-#include <linux/mca.h>
-#include <linux/spinlock.h>
-#include <linux/slab.h>
-#include <scsi/scsicam.h>
-#include <linux/mca-legacy.h>
-
-#include <asm/io.h>
-
-#include "scsi.h"
-#include <scsi/scsi_host.h>
-
-#define DRIVER_VERSION "v0.2 by ZP Gu<zpg@castle.net>"
-
-/* START OF USER DEFINABLE OPTIONS */
-
-#define DEBUG 0 /* Enable debugging output */
-#define ENABLE_PARITY 1 /* Enable SCSI Parity */
-
-/* END OF USER DEFINABLE OPTIONS */
-
-#if DEBUG
-#define EVERY_ACCESS 0 /* Write a line on every scsi access */
-#define ERRORS_ONLY 1 /* Only write a line if there is an error */
-#define DEBUG_MESSAGES 1 /* Debug MESSAGE IN phase */
-#define DEBUG_ABORT 1 /* Debug abort() routine */
-#define DEBUG_RESET 1 /* Debug reset() routine */
-#define DEBUG_RACE 1 /* Debug interrupt-driven race condition */
-#else
-#define EVERY_ACCESS 0 /* LEAVE THESE ALONE--CHANGE THE ONES ABOVE */
-#define ERRORS_ONLY 0
-#define DEBUG_MESSAGES 0
-#define DEBUG_ABORT 0
-#define DEBUG_RESET 0
-#define DEBUG_RACE 0
-#endif
-
-/* Errors are reported on the line, so we don't need to report them again */
-#if EVERY_ACCESS
-#undef ERRORS_ONLY
-#define ERRORS_ONLY 0
-#endif
-
-#if ENABLE_PARITY
-#define PARITY_MASK 0x08
-#else
-#define PARITY_MASK 0x00
-#endif
-
-enum chip_type {
- unknown = 0x00,
- tmc1800 = 0x01,
- tmc18c50 = 0x02,
- tmc18c30 = 0x03,
-};
-
-enum {
- in_arbitration = 0x02,
- in_selection = 0x04,
- in_other = 0x08,
- disconnect = 0x10,
- aborted = 0x20,
- sent_ident = 0x40,
-};
-
-enum in_port_type {
- Read_SCSI_Data = 0,
- SCSI_Status = 1,
- TMC_Status = 2,
- FIFO_Status = 3, /* tmc18c50/tmc18c30 only */
- Interrupt_Cond = 4, /* tmc18c50/tmc18c30 only */
- LSB_ID_Code = 5,
- MSB_ID_Code = 6,
- Read_Loopback = 7,
- SCSI_Data_NoACK = 8,
- Interrupt_Status = 9,
- Configuration1 = 10,
- Configuration2 = 11, /* tmc18c50/tmc18c30 only */
- Read_FIFO = 12,
- FIFO_Data_Count = 14
-};
-
-enum out_port_type {
- Write_SCSI_Data = 0,
- SCSI_Cntl = 1,
- Interrupt_Cntl = 2,
- SCSI_Mode_Cntl = 3,
- TMC_Cntl = 4,
- Memory_Cntl = 5, /* tmc18c50/tmc18c30 only */
- Write_Loopback = 7,
- IO_Control = 11, /* tmc18c30 only */
- Write_FIFO = 12
-};
-
-struct fd_hostdata {
- unsigned long _bios_base;
- int _bios_major;
- int _bios_minor;
- volatile int _in_command;
- Scsi_Cmnd *_current_SC;
- enum chip_type _chip;
- int _adapter_mask;
- int _fifo_count; /* Number of 512 byte blocks before INTR */
-
- char _adapter_name[64];
-#if DEBUG_RACE
- volatile int _in_interrupt_flag;
-#endif
-
- int _SCSI_Mode_Cntl_port;
- int _FIFO_Data_Count_port;
- int _Interrupt_Cntl_port;
- int _Interrupt_Status_port;
- int _Interrupt_Cond_port;
- int _Read_FIFO_port;
- int _Read_SCSI_Data_port;
- int _SCSI_Cntl_port;
- int _SCSI_Data_NoACK_port;
- int _SCSI_Status_port;
- int _TMC_Cntl_port;
- int _TMC_Status_port;
- int _Write_FIFO_port;
- int _Write_SCSI_Data_port;
-
- int _FIFO_Size; /* = 0x2000; 8k FIFO for
- pre-tmc18c30 chips */
- /* simple stats */
- int _Bytes_Read;
- int _Bytes_Written;
- int _INTR_Processed;
-};
-
-#define FD_MAX_HOSTS 3 /* enough? */
-
-#define HOSTDATA(shpnt) ((struct fd_hostdata *) shpnt->hostdata)
-#define bios_base (HOSTDATA(shpnt)->_bios_base)
-#define bios_major (HOSTDATA(shpnt)->_bios_major)
-#define bios_minor (HOSTDATA(shpnt)->_bios_minor)
-#define in_command (HOSTDATA(shpnt)->_in_command)
-#define current_SC (HOSTDATA(shpnt)->_current_SC)
-#define chip (HOSTDATA(shpnt)->_chip)
-#define adapter_mask (HOSTDATA(shpnt)->_adapter_mask)
-#define FIFO_COUNT (HOSTDATA(shpnt)->_fifo_count)
-#define adapter_name (HOSTDATA(shpnt)->_adapter_name)
-#if DEBUG_RACE
-#define in_interrupt_flag (HOSTDATA(shpnt)->_in_interrupt_flag)
-#endif
-#define SCSI_Mode_Cntl_port (HOSTDATA(shpnt)->_SCSI_Mode_Cntl_port)
-#define FIFO_Data_Count_port (HOSTDATA(shpnt)->_FIFO_Data_Count_port)
-#define Interrupt_Cntl_port (HOSTDATA(shpnt)->_Interrupt_Cntl_port)
-#define Interrupt_Status_port (HOSTDATA(shpnt)->_Interrupt_Status_port)
-#define Interrupt_Cond_port (HOSTDATA(shpnt)->_Interrupt_Cond_port)
-#define Read_FIFO_port (HOSTDATA(shpnt)->_Read_FIFO_port)
-#define Read_SCSI_Data_port (HOSTDATA(shpnt)->_Read_SCSI_Data_port)
-#define SCSI_Cntl_port (HOSTDATA(shpnt)->_SCSI_Cntl_port)
-#define SCSI_Data_NoACK_port (HOSTDATA(shpnt)->_SCSI_Data_NoACK_port)
-#define SCSI_Status_port (HOSTDATA(shpnt)->_SCSI_Status_port)
-#define TMC_Cntl_port (HOSTDATA(shpnt)->_TMC_Cntl_port)
-#define TMC_Status_port (HOSTDATA(shpnt)->_TMC_Status_port)
-#define Write_FIFO_port (HOSTDATA(shpnt)->_Write_FIFO_port)
-#define Write_SCSI_Data_port (HOSTDATA(shpnt)->_Write_SCSI_Data_port)
-#define FIFO_Size (HOSTDATA(shpnt)->_FIFO_Size)
-#define Bytes_Read (HOSTDATA(shpnt)->_Bytes_Read)
-#define Bytes_Written (HOSTDATA(shpnt)->_Bytes_Written)
-#define INTR_Processed (HOSTDATA(shpnt)->_INTR_Processed)
-
-struct fd_mcs_adapters_struct {
- char *name;
- int id;
- enum chip_type fd_chip;
- int fifo_size;
- int fifo_count;
-};
-
-#define REPLY_ID 0x5137
-
-static struct fd_mcs_adapters_struct fd_mcs_adapters[] = {
- {"Future Domain SCSI Adapter MCS-700(18C50)",
- 0x60e9,
- tmc18c50,
- 0x2000,
- 4},
- {"Future Domain SCSI Adapter MCS-600/700(TMC-1800)",
- 0x6127,
- tmc1800,
- 0x2000,
- 4},
- {"Reply Sound Blaster/SCSI Adapter",
- REPLY_ID,
- tmc18c30,
- 0x800,
- 2},
-};
-
-#define FD_BRDS ARRAY_SIZE(fd_mcs_adapters)
-
-static irqreturn_t fd_mcs_intr(int irq, void *dev_id);
-
-static unsigned long addresses[] = { 0xc8000, 0xca000, 0xce000, 0xde000 };
-static unsigned short ports[] = { 0x140, 0x150, 0x160, 0x170 };
-static unsigned short interrupts[] = { 3, 5, 10, 11, 12, 14, 15, 0 };
-
-/* host information */
-static int found = 0;
-static struct Scsi_Host *hosts[FD_MAX_HOSTS + 1] = { NULL };
-
-static int user_fifo_count = 0;
-static int user_fifo_size = 0;
-
-#ifndef MODULE
-static int __init fd_mcs_setup(char *str)
-{
- static int done_setup = 0;
- int ints[3];
-
- get_options(str, 3, ints);
- if (done_setup++ || ints[0] < 1 || ints[0] > 2 || ints[1] < 1 || ints[1] > 16) {
- printk("fd_mcs: usage: fd_mcs=FIFO_COUNT, FIFO_SIZE\n");
- return 0;
- }
-
- user_fifo_count = ints[0] >= 1 ? ints[1] : 0;
- user_fifo_size = ints[0] >= 2 ? ints[2] : 0;
- return 1;
-}
-
-__setup("fd_mcs=", fd_mcs_setup);
-#endif /* !MODULE */
-
-static void print_banner(struct Scsi_Host *shpnt)
-{
- printk("scsi%d <fd_mcs>: ", shpnt->host_no);
-
- if (bios_base) {
- printk("BIOS at 0x%lX", bios_base);
- } else {
- printk("No BIOS");
- }
-
- printk(", HostID %d, %s Chip, IRQ %d, IO 0x%lX\n", shpnt->this_id, chip == tmc18c50 ? "TMC-18C50" : (chip == tmc18c30 ? "TMC-18C30" : (chip == tmc1800 ? "TMC-1800" : "Unknown")), shpnt->irq, shpnt->io_port);
-}
-
-
-static void do_pause(unsigned amount)
-{ /* Pause for amount*10 milliseconds */
- do {
- mdelay(10);
- } while (--amount);
-}
-
-static void fd_mcs_make_bus_idle(struct Scsi_Host *shpnt)
-{
- outb(0, SCSI_Cntl_port);
- outb(0, SCSI_Mode_Cntl_port);
- if (chip == tmc18c50 || chip == tmc18c30)
- outb(0x21 | PARITY_MASK, TMC_Cntl_port); /* Clear forced intr. */
- else
- outb(0x01 | PARITY_MASK, TMC_Cntl_port);
-}
-
-static int fd_mcs_detect(struct scsi_host_template * tpnt)
-{
- int loop;
- struct Scsi_Host *shpnt;
-
- /* get id, port, bios, irq */
- int slot;
- u_char pos2, pos3, pos4;
- int id, port, irq;
- unsigned long bios;
-
- /* if not MCA machine, return */
- if (!MCA_bus)
- return 0;
-
- /* changeable? */
- id = 7;
-
- for (loop = 0; loop < FD_BRDS; loop++) {
- slot = 0;
- while (MCA_NOTFOUND != (slot = mca_find_adapter(fd_mcs_adapters[loop].id, slot))) {
-
- /* if we get this far, an adapter has been detected and is
- enabled */
-
- printk(KERN_INFO "scsi <fd_mcs>: %s at slot %d\n", fd_mcs_adapters[loop].name, slot + 1);
-
- pos2 = mca_read_stored_pos(slot, 2);
- pos3 = mca_read_stored_pos(slot, 3);
- pos4 = mca_read_stored_pos(slot, 4);
-
- /* ready for next probe */
- slot++;
-
- if (fd_mcs_adapters[loop].id == REPLY_ID) { /* reply card */
- static int reply_irq[] = { 10, 11, 14, 15 };
-
- bios = 0; /* no bios */
-
- if (pos2 & 0x2)
- port = ports[pos4 & 0x3];
- else
- continue;
-
- /* can't really disable it, same as irq=10 */
- irq = reply_irq[((pos4 >> 2) & 0x1) + 2 * ((pos4 >> 4) & 0x1)];
- } else {
- bios = addresses[pos2 >> 6];
- port = ports[(pos2 >> 4) & 0x03];
- irq = interrupts[(pos2 >> 1) & 0x07];
- }
-
- if (irq) {
- /* claim the slot */
- mca_set_adapter_name(slot - 1, fd_mcs_adapters[loop].name);
-
- /* check irq/region */
- if (request_irq(irq, fd_mcs_intr, IRQF_SHARED, "fd_mcs", hosts)) {
- printk(KERN_ERR "fd_mcs: interrupt is not available, skipping...\n");
- continue;
- }
-
- /* request I/O region */
- if (request_region(port, 0x10, "fd_mcs")) {
- printk(KERN_ERR "fd_mcs: I/O region is already in use, skipping...\n");
- continue;
- }
- /* register */
- if (!(shpnt = scsi_register(tpnt, sizeof(struct fd_hostdata)))) {
- printk(KERN_ERR "fd_mcs: scsi_register() failed\n");
- release_region(port, 0x10);
- free_irq(irq, hosts);
- continue;
- }
-
-
- /* save name */
- strcpy(adapter_name, fd_mcs_adapters[loop].name);
-
- /* chip/fifo */
- chip = fd_mcs_adapters[loop].fd_chip;
- /* use boot time value if available */
- FIFO_COUNT = user_fifo_count ? user_fifo_count : fd_mcs_adapters[loop].fifo_count;
- FIFO_Size = user_fifo_size ? user_fifo_size : fd_mcs_adapters[loop].fifo_size;
-
-/* FIXME: Do we need to keep this bit of code inside NOT_USED around at all? */
-#ifdef NOT_USED
- /* *************************************************** */
- /* Try to toggle 32-bit mode. This only
- works on an 18c30 chip. (User reports
- say this works, so we should switch to
- it in the near future.) */
- outb(0x80, port + IO_Control);
- if ((inb(port + Configuration2) & 0x80) == 0x80) {
- outb(0x00, port + IO_Control);
- if ((inb(port + Configuration2) & 0x80) == 0x00) {
- chip = tmc18c30;
- FIFO_Size = 0x800; /* 2k FIFO */
-
- printk("FIRST: chip=%s, fifo_size=0x%x\n", (chip == tmc18c30) ? "tmc18c30" : "tmc18c50", FIFO_Size);
- }
- }
-
- /* That should have worked, but appears to
- have problems. Let's assume it is an
- 18c30 if the RAM is disabled. */
-
- if (inb(port + Configuration2) & 0x02) {
- chip = tmc18c30;
- FIFO_Size = 0x800; /* 2k FIFO */
-
- printk("SECOND: chip=%s, fifo_size=0x%x\n", (chip == tmc18c30) ? "tmc18c30" : "tmc18c50", FIFO_Size);
- }
- /* *************************************************** */
-#endif
-
- /* IBM/ANSI scsi scan ordering */
- /* Stick this back in when the scsi.c changes are there */
- shpnt->reverse_ordering = 1;
-
-
- /* saving info */
- hosts[found++] = shpnt;
-
- shpnt->this_id = id;
- shpnt->irq = irq;
- shpnt->io_port = port;
- shpnt->n_io_port = 0x10;
-
- /* save */
- bios_base = bios;
- adapter_mask = (1 << id);
-
- /* save more */
- SCSI_Mode_Cntl_port = port + SCSI_Mode_Cntl;
- FIFO_Data_Count_port = port + FIFO_Data_Count;
- Interrupt_Cntl_port = port + Interrupt_Cntl;
- Interrupt_Status_port = port + Interrupt_Status;
- Interrupt_Cond_port = port + Interrupt_Cond;
- Read_FIFO_port = port + Read_FIFO;
- Read_SCSI_Data_port = port + Read_SCSI_Data;
- SCSI_Cntl_port = port + SCSI_Cntl;
- SCSI_Data_NoACK_port = port + SCSI_Data_NoACK;
- SCSI_Status_port = port + SCSI_Status;
- TMC_Cntl_port = port + TMC_Cntl;
- TMC_Status_port = port + TMC_Status;
- Write_FIFO_port = port + Write_FIFO;
- Write_SCSI_Data_port = port + Write_SCSI_Data;
-
- Bytes_Read = 0;
- Bytes_Written = 0;
- INTR_Processed = 0;
-
- /* say something */
- print_banner(shpnt);
-
- /* reset */
- outb(1, SCSI_Cntl_port);
- do_pause(2);
- outb(0, SCSI_Cntl_port);
- do_pause(115);
- outb(0, SCSI_Mode_Cntl_port);
- outb(PARITY_MASK, TMC_Cntl_port);
- /* done reset */
- }
- }
-
- if (found == FD_MAX_HOSTS) {
- printk("fd_mcs: detecting reached max=%d host adapters.\n", FD_MAX_HOSTS);
- break;
- }
- }
-
- return found;
-}
-
-static const char *fd_mcs_info(struct Scsi_Host *shpnt)
-{
- return adapter_name;
-}
-
-static int TOTAL_INTR = 0;
-
-/*
- * inout : decides on the direction of the dataflow and the meaning of the
- * variables
- * buffer: If inout==FALSE data is being written to it else read from it
- * *start: If inout==FALSE start of the valid data in the buffer
- * offset: If inout==FALSE offset from the beginning of the imaginary file
- * from which we start writing into the buffer
- * length: If inout==FALSE max number of bytes to be written into the buffer
- * else number of bytes in the buffer
- */
-static int fd_mcs_proc_info(struct Scsi_Host *shpnt, char *buffer, char **start, off_t offset, int length, int inout)
-{
- int len = 0;
-
- if (inout)
- return (-ENOSYS);
-
- *start = buffer + offset;
-
- len += sprintf(buffer + len, "Future Domain MCS-600/700 Driver %s\n", DRIVER_VERSION);
- len += sprintf(buffer + len, "HOST #%d: %s\n", shpnt->host_no, adapter_name);
- len += sprintf(buffer + len, "FIFO Size=0x%x, FIFO Count=%d\n", FIFO_Size, FIFO_COUNT);
- len += sprintf(buffer + len, "DriverCalls=%d, Interrupts=%d, BytesRead=%d, BytesWrite=%d\n\n", TOTAL_INTR, INTR_Processed, Bytes_Read, Bytes_Written);
-
- if ((len -= offset) <= 0)
- return 0;
- if (len > length)
- len = length;
- return len;
-}
-
-static int fd_mcs_select(struct Scsi_Host *shpnt, int target)
-{
- int status;
- unsigned long timeout;
-
- outb(0x82, SCSI_Cntl_port); /* Bus Enable + Select */
- outb(adapter_mask | (1 << target), SCSI_Data_NoACK_port);
-
- /* Stop arbitration and enable parity */
- outb(PARITY_MASK, TMC_Cntl_port);
-
- timeout = 350; /* 350mS -- because of timeouts
- (was 250mS) */
-
- do {
- status = inb(SCSI_Status_port); /* Read adapter status */
- if (status & 1) { /* Busy asserted */
- /* Enable SCSI Bus (on error, should make bus idle with 0) */
- outb(0x80, SCSI_Cntl_port);
- return 0;
- }
- udelay(1000); /* wait one msec */
- } while (--timeout);
-
- /* Make bus idle */
- fd_mcs_make_bus_idle(shpnt);
-#if EVERY_ACCESS
- if (!target)
- printk("Selection failed\n");
-#endif
-#if ERRORS_ONLY
- if (!target) {
- static int flag = 0;
-
- if (!flag) /* Skip first failure for all chips. */
- ++flag;
- else
- printk("fd_mcs: Selection failed\n");
- }
-#endif
- return 1;
-}
-
-static void my_done(struct Scsi_Host *shpnt, int error)
-{
- if (in_command) {
- in_command = 0;
- outb(0x00, Interrupt_Cntl_port);
- fd_mcs_make_bus_idle(shpnt);
- current_SC->result = error;
- current_SC->scsi_done(current_SC);
- } else {
- panic("fd_mcs: my_done() called outside of command\n");
- }
-#if DEBUG_RACE
- in_interrupt_flag = 0;
-#endif
-}
-
-/* only my_done needs to be protected */
-static irqreturn_t fd_mcs_intr(int irq, void *dev_id)
-{
- unsigned long flags;
- int status;
- int done = 0;
- unsigned data_count, tmp_count;
-
- int i = 0;
- struct Scsi_Host *shpnt;
-
- TOTAL_INTR++;
-
- /* search for one adapter-response on shared interrupt */
- while ((shpnt = hosts[i++])) {
- if ((inb(TMC_Status_port)) & 1)
- break;
- }
-
- /* return if some other device on this IRQ caused the interrupt */
- if (!shpnt) {
- return IRQ_NONE;
- }
-
- INTR_Processed++;
-
- outb(0x00, Interrupt_Cntl_port);
-
- /* Abort calls my_done, so we do nothing here. */
- if (current_SC->SCp.phase & aborted) {
-#if DEBUG_ABORT
- printk("Interrupt after abort, ignoring\n");
-#endif
- /* return IRQ_HANDLED; */
- }
-#if DEBUG_RACE
- ++in_interrupt_flag;
-#endif
-
- if (current_SC->SCp.phase & in_arbitration) {
- status = inb(TMC_Status_port); /* Read adapter status */
- if (!(status & 0x02)) {
-#if EVERY_ACCESS
- printk(" AFAIL ");
-#endif
- spin_lock_irqsave(shpnt->host_lock, flags);
- my_done(shpnt, DID_BUS_BUSY << 16);
- spin_unlock_irqrestore(shpnt->host_lock, flags);
- return IRQ_HANDLED;
- }
- current_SC->SCp.phase = in_selection;
-
- outb(0x40 | FIFO_COUNT, Interrupt_Cntl_port);
-
- outb(0x82, SCSI_Cntl_port); /* Bus Enable + Select */
- outb(adapter_mask | (1 << scmd_id(current_SC)), SCSI_Data_NoACK_port);
-
- /* Stop arbitration and enable parity */
- outb(0x10 | PARITY_MASK, TMC_Cntl_port);
-#if DEBUG_RACE
- in_interrupt_flag = 0;
-#endif
- return IRQ_HANDLED;
- } else if (current_SC->SCp.phase & in_selection) {
- status = inb(SCSI_Status_port);
- if (!(status & 0x01)) {
- /* Try again, for slow devices */
- if (fd_mcs_select(shpnt, scmd_id(current_SC))) {
-#if EVERY_ACCESS
- printk(" SFAIL ");
-#endif
- spin_lock_irqsave(shpnt->host_lock, flags);
- my_done(shpnt, DID_NO_CONNECT << 16);
- spin_unlock_irqrestore(shpnt->host_lock, flags);
- return IRQ_HANDLED;
- } else {
-#if EVERY_ACCESS
- printk(" AltSel ");
-#endif
- /* Stop arbitration and enable parity */
- outb(0x10 | PARITY_MASK, TMC_Cntl_port);
- }
- }
- current_SC->SCp.phase = in_other;
- outb(0x90 | FIFO_COUNT, Interrupt_Cntl_port);
- outb(0x80, SCSI_Cntl_port);
-#if DEBUG_RACE
- in_interrupt_flag = 0;
-#endif
- return IRQ_HANDLED;
- }
-
- /* current_SC->SCp.phase == in_other: this is the body of the routine */
-
- status = inb(SCSI_Status_port);
-
- if (status & 0x10) { /* REQ */
-
- switch (status & 0x0e) {
-
- case 0x08: /* COMMAND OUT */
- outb(current_SC->cmnd[current_SC->SCp.sent_command++], Write_SCSI_Data_port);
-#if EVERY_ACCESS
- printk("CMD = %x,", current_SC->cmnd[current_SC->SCp.sent_command - 1]);
-#endif
- break;
- case 0x00: /* DATA OUT -- tmc18c50/tmc18c30 only */
- if (chip != tmc1800 && !current_SC->SCp.have_data_in) {
- current_SC->SCp.have_data_in = -1;
- outb(0xd0 | PARITY_MASK, TMC_Cntl_port);
- }
- break;
- case 0x04: /* DATA IN -- tmc18c50/tmc18c30 only */
- if (chip != tmc1800 && !current_SC->SCp.have_data_in) {
- current_SC->SCp.have_data_in = 1;
- outb(0x90 | PARITY_MASK, TMC_Cntl_port);
- }
- break;
- case 0x0c: /* STATUS IN */
- current_SC->SCp.Status = inb(Read_SCSI_Data_port);
-#if EVERY_ACCESS
- printk("Status = %x, ", current_SC->SCp.Status);
-#endif
-#if ERRORS_ONLY
- if (current_SC->SCp.Status && current_SC->SCp.Status != 2 && current_SC->SCp.Status != 8) {
- printk("ERROR fd_mcs: target = %d, command = %x, status = %x\n", current_SC->device->id, current_SC->cmnd[0], current_SC->SCp.Status);
- }
-#endif
- break;
- case 0x0a: /* MESSAGE OUT */
- outb(MESSAGE_REJECT, Write_SCSI_Data_port); /* Reject */
- break;
- case 0x0e: /* MESSAGE IN */
- current_SC->SCp.Message = inb(Read_SCSI_Data_port);
-#if EVERY_ACCESS
- printk("Message = %x, ", current_SC->SCp.Message);
-#endif
- if (!current_SC->SCp.Message)
- ++done;
-#if DEBUG_MESSAGES || EVERY_ACCESS
- if (current_SC->SCp.Message) {
- printk("fd_mcs: message = %x\n", current_SC->SCp.Message);
- }
-#endif
- break;
- }
- }
-
- if (chip == tmc1800 && !current_SC->SCp.have_data_in && (current_SC->SCp.sent_command >= current_SC->cmd_len)) {
- /* We have to get the FIFO direction
- correct, so I've made a table based
- on the SCSI Standard of which commands
- appear to require a DATA OUT phase.
- */
- /*
- p. 94: Command for all device types
- CHANGE DEFINITION 40 DATA OUT
- COMPARE 39 DATA OUT
- COPY 18 DATA OUT
- COPY AND VERIFY 3a DATA OUT
- INQUIRY 12
- LOG SELECT 4c DATA OUT
- LOG SENSE 4d
- MODE SELECT (6) 15 DATA OUT
- MODE SELECT (10) 55 DATA OUT
- MODE SENSE (6) 1a
- MODE SENSE (10) 5a
- READ BUFFER 3c
- RECEIVE DIAGNOSTIC RESULTS 1c
- REQUEST SENSE 03
- SEND DIAGNOSTIC 1d DATA OUT
- TEST UNIT READY 00
- WRITE BUFFER 3b DATA OUT
-
- p.178: Commands for direct-access devices (not listed on p. 94)
- FORMAT UNIT 04 DATA OUT
- LOCK-UNLOCK CACHE 36
- PRE-FETCH 34
- PREVENT-ALLOW MEDIUM REMOVAL 1e
- READ (6)/RECEIVE 08
- READ (10) 3c
- READ CAPACITY 25
- READ DEFECT DATA (10) 37
- READ LONG 3e
- REASSIGN BLOCKS 07 DATA OUT
- RELEASE 17
- RESERVE 16 DATA OUT
- REZERO UNIT/REWIND 01
- SEARCH DATA EQUAL (10) 31 DATA OUT
- SEARCH DATA HIGH (10) 30 DATA OUT
- SEARCH DATA LOW (10) 32 DATA OUT
- SEEK (6) 0b
- SEEK (10) 2b
- SET LIMITS (10) 33
- START STOP UNIT 1b
- SYNCHRONIZE CACHE 35
- VERIFY (10) 2f
- WRITE (6)/PRINT/SEND 0a DATA OUT
- WRITE (10)/SEND 2a DATA OUT
- WRITE AND VERIFY (10) 2e DATA OUT
- WRITE LONG 3f DATA OUT
- WRITE SAME 41 DATA OUT ?
-
- p. 261: Commands for sequential-access devices (not previously listed)
- ERASE 19
- LOAD UNLOAD 1b
- LOCATE 2b
- READ BLOCK LIMITS 05
- READ POSITION 34
- READ REVERSE 0f
- RECOVER BUFFERED DATA 14
- SPACE 11
- WRITE FILEMARKS 10 ?
-
- p. 298: Commands for printer devices (not previously listed)
- ****** NOT SUPPORTED BY THIS DRIVER, since 0b is SEEK (6) *****
- SLEW AND PRINT 0b DATA OUT -- same as seek
- STOP PRINT 1b
- SYNCHRONIZE BUFFER 10
-
- p. 315: Commands for processor devices (not previously listed)
-
- p. 321: Commands for write-once devices (not previously listed)
- MEDIUM SCAN 38
- READ (12) a8
- SEARCH DATA EQUAL (12) b1 DATA OUT
- SEARCH DATA HIGH (12) b0 DATA OUT
- SEARCH DATA LOW (12) b2 DATA OUT
- SET LIMITS (12) b3
- VERIFY (12) af
- WRITE (12) aa DATA OUT
- WRITE AND VERIFY (12) ae DATA OUT
-
- p. 332: Commands for CD-ROM devices (not previously listed)
- PAUSE/RESUME 4b
- PLAY AUDIO (10) 45
- PLAY AUDIO (12) a5
- PLAY AUDIO MSF 47
- PLAY TRACK RELATIVE (10) 49
- PLAY TRACK RELATIVE (12) a9
- READ HEADER 44
- READ SUB-CHANNEL 42
- READ TOC 43
-
- p. 370: Commands for scanner devices (not previously listed)
- GET DATA BUFFER STATUS 34
- GET WINDOW 25
- OBJECT POSITION 31
- SCAN 1b
- SET WINDOW 24 DATA OUT
-
- p. 391: Commands for optical memory devices (not listed)
- ERASE (10) 2c
- ERASE (12) ac
- MEDIUM SCAN 38 DATA OUT
- READ DEFECT DATA (12) b7
- READ GENERATION 29
- READ UPDATED BLOCK 2d
- UPDATE BLOCK 3d DATA OUT
-
- p. 419: Commands for medium changer devices (not listed)
- EXCHANGE MEDIUM 46
- INITIALIZE ELEMENT STATUS 07
- MOVE MEDIUM a5
- POSITION TO ELEMENT 2b
- READ ELEMENT STATUS b8
- REQUEST VOL. ELEMENT ADDRESS b5
- SEND VOLUME TAG b6 DATA OUT
-
- p. 454: Commands for communications devices (not listed previously)
- GET MESSAGE (6) 08
- GET MESSAGE (10) 28
- GET MESSAGE (12) a8
- */
-
- switch (current_SC->cmnd[0]) {
- case CHANGE_DEFINITION:
- case COMPARE:
- case COPY:
- case COPY_VERIFY:
- case LOG_SELECT:
- case MODE_SELECT:
- case MODE_SELECT_10:
- case SEND_DIAGNOSTIC:
- case WRITE_BUFFER:
-
- case FORMAT_UNIT:
- case REASSIGN_BLOCKS:
- case RESERVE:
- case SEARCH_EQUAL:
- case SEARCH_HIGH:
- case SEARCH_LOW:
- case WRITE_6:
- case WRITE_10:
- case WRITE_VERIFY:
- case 0x3f:
- case 0x41:
-
- case 0xb1:
- case 0xb0:
- case 0xb2:
- case 0xaa:
- case 0xae:
-
- case 0x24:
-
- case 0x38:
- case 0x3d:
-
- case 0xb6:
-
- case 0xea: /* alternate number for WRITE LONG */
-
- current_SC->SCp.have_data_in = -1;
- outb(0xd0 | PARITY_MASK, TMC_Cntl_port);
- break;
-
- case 0x00:
- default:
-
- current_SC->SCp.have_data_in = 1;
- outb(0x90 | PARITY_MASK, TMC_Cntl_port);
- break;
- }
- }
-
- if (current_SC->SCp.have_data_in == -1) { /* DATA OUT */
- while ((data_count = FIFO_Size - inw(FIFO_Data_Count_port)) > 512) {
-#if EVERY_ACCESS
- printk("DC=%d, ", data_count);
-#endif
- if (data_count > current_SC->SCp.this_residual)
- data_count = current_SC->SCp.this_residual;
- if (data_count > 0) {
-#if EVERY_ACCESS
- printk("%d OUT, ", data_count);
-#endif
- if (data_count == 1) {
- Bytes_Written++;
-
- outb(*current_SC->SCp.ptr++, Write_FIFO_port);
- --current_SC->SCp.this_residual;
- } else {
- data_count >>= 1;
- tmp_count = data_count << 1;
- outsw(Write_FIFO_port, current_SC->SCp.ptr, data_count);
- current_SC->SCp.ptr += tmp_count;
- Bytes_Written += tmp_count;
- current_SC->SCp.this_residual -= tmp_count;
- }
- }
- if (!current_SC->SCp.this_residual) {
- if (current_SC->SCp.buffers_residual) {
- --current_SC->SCp.buffers_residual;
- ++current_SC->SCp.buffer;
- current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer);
- current_SC->SCp.this_residual = current_SC->SCp.buffer->length;
- } else
- break;
- }
- }
- } else if (current_SC->SCp.have_data_in == 1) { /* DATA IN */
- while ((data_count = inw(FIFO_Data_Count_port)) > 0) {
-#if EVERY_ACCESS
- printk("DC=%d, ", data_count);
-#endif
- if (data_count > current_SC->SCp.this_residual)
- data_count = current_SC->SCp.this_residual;
- if (data_count) {
-#if EVERY_ACCESS
- printk("%d IN, ", data_count);
-#endif
- if (data_count == 1) {
- Bytes_Read++;
- *current_SC->SCp.ptr++ = inb(Read_FIFO_port);
- --current_SC->SCp.this_residual;
- } else {
- data_count >>= 1; /* Number of words */
- tmp_count = data_count << 1;
- insw(Read_FIFO_port, current_SC->SCp.ptr, data_count);
- current_SC->SCp.ptr += tmp_count;
- Bytes_Read += tmp_count;
- current_SC->SCp.this_residual -= tmp_count;
- }
- }
- if (!current_SC->SCp.this_residual && current_SC->SCp.buffers_residual) {
- --current_SC->SCp.buffers_residual;
- ++current_SC->SCp.buffer;
- current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer);
- current_SC->SCp.this_residual = current_SC->SCp.buffer->length;
- }
- }
- }
-
- if (done) {
-#if EVERY_ACCESS
- printk(" ** IN DONE %d ** ", current_SC->SCp.have_data_in);
-#endif
-
-#if EVERY_ACCESS
- printk("BEFORE MY_DONE. . .");
-#endif
- spin_lock_irqsave(shpnt->host_lock, flags);
- my_done(shpnt, (current_SC->SCp.Status & 0xff)
- | ((current_SC->SCp.Message & 0xff) << 8) | (DID_OK << 16));
- spin_unlock_irqrestore(shpnt->host_lock, flags);
-#if EVERY_ACCESS
- printk("RETURNING.\n");
-#endif
-
- } else {
- if (current_SC->SCp.phase & disconnect) {
- outb(0xd0 | FIFO_COUNT, Interrupt_Cntl_port);
- outb(0x00, SCSI_Cntl_port);
- } else {
- outb(0x90 | FIFO_COUNT, Interrupt_Cntl_port);
- }
- }
-#if DEBUG_RACE
- in_interrupt_flag = 0;
-#endif
- return IRQ_HANDLED;
-}
-
-static int fd_mcs_release(struct Scsi_Host *shpnt)
-{
- int i, this_host, irq_usage;
-
- release_region(shpnt->io_port, shpnt->n_io_port);
-
- this_host = -1;
- irq_usage = 0;
- for (i = 0; i < found; i++) {
- if (shpnt == hosts[i])
- this_host = i;
- if (shpnt->irq == hosts[i]->irq)
- irq_usage++;
- }
-
- /* only for the last one */
- if (1 == irq_usage)
- free_irq(shpnt->irq, hosts);
-
- found--;
-
- for (i = this_host; i < found; i++)
- hosts[i] = hosts[i + 1];
-
- hosts[found] = NULL;
-
- return 0;
-}
-
-static int fd_mcs_queue_lck(Scsi_Cmnd * SCpnt, void (*done) (Scsi_Cmnd *))
-{
- struct Scsi_Host *shpnt = SCpnt->device->host;
-
- if (in_command) {
- panic("fd_mcs: fd_mcs_queue() NOT REENTRANT!\n");
- }
-#if EVERY_ACCESS
- printk("queue: target = %d cmnd = 0x%02x pieces = %d size = %u\n",
- SCpnt->target, *(unsigned char *) SCpnt->cmnd,
- scsi_sg_count(SCpnt), scsi_bufflen(SCpnt));
-#endif
-
- fd_mcs_make_bus_idle(shpnt);
-
- SCpnt->scsi_done = done; /* Save this for the done function */
- current_SC = SCpnt;
-
- /* Initialize static data */
-
- if (scsi_bufflen(current_SC)) {
- current_SC->SCp.buffer = scsi_sglist(current_SC);
- current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer);
- current_SC->SCp.this_residual = current_SC->SCp.buffer->length;
- current_SC->SCp.buffers_residual = scsi_sg_count(current_SC) - 1;
- } else {
- current_SC->SCp.ptr = NULL;
- current_SC->SCp.this_residual = 0;
- current_SC->SCp.buffer = NULL;
- current_SC->SCp.buffers_residual = 0;
- }
-
-
- current_SC->SCp.Status = 0;
- current_SC->SCp.Message = 0;
- current_SC->SCp.have_data_in = 0;
- current_SC->SCp.sent_command = 0;
- current_SC->SCp.phase = in_arbitration;
-
- /* Start arbitration */
- outb(0x00, Interrupt_Cntl_port);
- outb(0x00, SCSI_Cntl_port); /* Disable data drivers */
- outb(adapter_mask, SCSI_Data_NoACK_port); /* Set our id bit */
- in_command = 1;
- outb(0x20, Interrupt_Cntl_port);
- outb(0x14 | PARITY_MASK, TMC_Cntl_port); /* Start arbitration */
-
- return 0;
-}
-
-static DEF_SCSI_QCMD(fd_mcs_queue)
-
-#if DEBUG_ABORT || DEBUG_RESET
-static void fd_mcs_print_info(Scsi_Cmnd * SCpnt)
-{
- unsigned int imr;
- unsigned int irr;
- unsigned int isr;
- struct Scsi_Host *shpnt = SCpnt->host;
-
- if (!SCpnt || !SCpnt->host) {
- printk("fd_mcs: cannot provide detailed information\n");
- }
-
- printk("%s\n", fd_mcs_info(SCpnt->host));
- print_banner(SCpnt->host);
- switch (SCpnt->SCp.phase) {
- case in_arbitration:
- printk("arbitration ");
- break;
- case in_selection:
- printk("selection ");
- break;
- case in_other:
- printk("other ");
- break;
- default:
- printk("unknown ");
- break;
- }
-
- printk("(%d), target = %d cmnd = 0x%02x pieces = %d size = %u\n",
- SCpnt->SCp.phase, SCpnt->device->id, *(unsigned char *) SCpnt->cmnd,
- scsi_sg_count(SCpnt), scsi_bufflen(SCpnt));
- printk("sent_command = %d, have_data_in = %d, timeout = %d\n", SCpnt->SCp.sent_command, SCpnt->SCp.have_data_in, SCpnt->timeout);
-#if DEBUG_RACE
- printk("in_interrupt_flag = %d\n", in_interrupt_flag);
-#endif
-
- imr = (inb(0x0a1) << 8) + inb(0x21);
- outb(0x0a, 0xa0);
- irr = inb(0xa0) << 8;
- outb(0x0a, 0x20);
- irr += inb(0x20);
- outb(0x0b, 0xa0);
- isr = inb(0xa0) << 8;
- outb(0x0b, 0x20);
- isr += inb(0x20);
-
- /* Print out interesting information */
- printk("IMR = 0x%04x", imr);
- if (imr & (1 << shpnt->irq))
- printk(" (masked)");
- printk(", IRR = 0x%04x, ISR = 0x%04x\n", irr, isr);
-
- printk("SCSI Status = 0x%02x\n", inb(SCSI_Status_port));
- printk("TMC Status = 0x%02x", inb(TMC_Status_port));
- if (inb(TMC_Status_port) & 1)
- printk(" (interrupt)");
- printk("\n");
- printk("Interrupt Status = 0x%02x", inb(Interrupt_Status_port));
- if (inb(Interrupt_Status_port) & 0x08)
- printk(" (enabled)");
- printk("\n");
- if (chip == tmc18c50 || chip == tmc18c30) {
- printk("FIFO Status = 0x%02x\n", inb(shpnt->io_port + FIFO_Status));
- printk("Int. Condition = 0x%02x\n", inb(shpnt->io_port + Interrupt_Cond));
- }
- printk("Configuration 1 = 0x%02x\n", inb(shpnt->io_port + Configuration1));
- if (chip == tmc18c50 || chip == tmc18c30)
- printk("Configuration 2 = 0x%02x\n", inb(shpnt->io_port + Configuration2));
-}
-#endif
-
-static int fd_mcs_abort(Scsi_Cmnd * SCpnt)
-{
- struct Scsi_Host *shpnt = SCpnt->device->host;
-
- unsigned long flags;
-#if EVERY_ACCESS || ERRORS_ONLY || DEBUG_ABORT
- printk("fd_mcs: abort ");
-#endif
-
- spin_lock_irqsave(shpnt->host_lock, flags);
- if (!in_command) {
-#if EVERY_ACCESS || ERRORS_ONLY
- printk(" (not in command)\n");
-#endif
- spin_unlock_irqrestore(shpnt->host_lock, flags);
- return FAILED;
- } else
- printk("\n");
-
-#if DEBUG_ABORT
- fd_mcs_print_info(SCpnt);
-#endif
-
- fd_mcs_make_bus_idle(shpnt);
-
- current_SC->SCp.phase |= aborted;
-
- current_SC->result = DID_ABORT << 16;
-
- /* Aborts are not done well. . . */
- my_done(shpnt, DID_ABORT << 16);
-
- spin_unlock_irqrestore(shpnt->host_lock, flags);
- return SUCCESS;
-}
-
-static int fd_mcs_bus_reset(Scsi_Cmnd * SCpnt) {
- struct Scsi_Host *shpnt = SCpnt->device->host;
- unsigned long flags;
-
-#if DEBUG_RESET
- static int called_once = 0;
-#endif
-
-#if ERRORS_ONLY
- if (SCpnt)
- printk("fd_mcs: SCSI Bus Reset\n");
-#endif
-
-#if DEBUG_RESET
- if (called_once)
- fd_mcs_print_info(current_SC);
- called_once = 1;
-#endif
-
- spin_lock_irqsave(shpnt->host_lock, flags);
-
- outb(1, SCSI_Cntl_port);
- do_pause(2);
- outb(0, SCSI_Cntl_port);
- do_pause(115);
- outb(0, SCSI_Mode_Cntl_port);
- outb(PARITY_MASK, TMC_Cntl_port);
-
- spin_unlock_irqrestore(shpnt->host_lock, flags);
-
- /* Unless this is the very first call (i.e., SCPnt == NULL), everything
- is probably hosed at this point. We will, however, try to keep
- things going by informing the high-level code that we need help. */
- return SUCCESS;
-}
-
-#include <scsi/scsi_ioctl.h>
-
-static int fd_mcs_biosparam(struct scsi_device * disk, struct block_device *bdev,
- sector_t capacity, int *info_array)
-{
- unsigned char *p = scsi_bios_ptable(bdev);
- int size = capacity;
-
- /* BIOS >= 3.4 for MCA cards */
- /* This algorithm was provided by Future Domain (much thanks!). */
-
- if (p && p[65] == 0xaa && p[64] == 0x55 /* Partition table valid */
- && p[4]) { /* Partition type */
- /* The partition table layout is as follows:
-
- Start: 0x1b3h
- Offset: 0 = partition status
- 1 = starting head
- 2 = starting sector and cylinder (word, encoded)
- 4 = partition type
- 5 = ending head
- 6 = ending sector and cylinder (word, encoded)
- 8 = starting absolute sector (double word)
- c = number of sectors (double word)
- Signature: 0x1fe = 0x55aa
-
- So, this algorithm assumes:
- 1) the first partition table is in use,
- 2) the data in the first entry is correct, and
- 3) partitions never divide cylinders
-
- Note that (1) may be FALSE for NetBSD (and other BSD flavors),
- as well as for Linux. Note also, that Linux doesn't pay any
- attention to the fields that are used by this algorithm -- it
- only uses the absolute sector data. Recent versions of Linux's
- fdisk(1) will fill this data in correctly, and forthcoming
- versions will check for consistency.
-
- Checking for a non-zero partition type is not part of the
- Future Domain algorithm, but it seemed to be a reasonable thing
- to do, especially in the Linux and BSD worlds. */
-
- info_array[0] = p[5] + 1; /* heads */
- info_array[1] = p[6] & 0x3f; /* sectors */
- } else {
- /* Note that this new method guarantees that there will always be
- less than 1024 cylinders on a platter. This is good for drives
- up to approximately 7.85GB (where 1GB = 1024 * 1024 kB). */
- if ((unsigned int) size >= 0x7e0000U)
- {
- info_array[0] = 0xff; /* heads = 255 */
- info_array[1] = 0x3f; /* sectors = 63 */
- } else if ((unsigned int) size >= 0x200000U) {
- info_array[0] = 0x80; /* heads = 128 */
- info_array[1] = 0x3f; /* sectors = 63 */
- } else {
- info_array[0] = 0x40; /* heads = 64 */
- info_array[1] = 0x20; /* sectors = 32 */
- }
- }
- /* For both methods, compute the cylinders */
- info_array[2] = (unsigned int) size / (info_array[0] * info_array[1]);
- kfree(p);
- return 0;
-}
-
-static struct scsi_host_template driver_template = {
- .proc_name = "fd_mcs",
- .proc_info = fd_mcs_proc_info,
- .detect = fd_mcs_detect,
- .release = fd_mcs_release,
- .info = fd_mcs_info,
- .queuecommand = fd_mcs_queue,
- .eh_abort_handler = fd_mcs_abort,
- .eh_bus_reset_handler = fd_mcs_bus_reset,
- .bios_param = fd_mcs_biosparam,
- .can_queue = 1,
- .this_id = 7,
- .sg_tablesize = 64,
- .cmd_per_lun = 1,
- .use_clustering = DISABLE_CLUSTERING,
-};
-#include "scsi_module.c"
-
-MODULE_LICENSE("GPL");
diff --git a/drivers/scsi/ibmmca.c b/drivers/scsi/ibmmca.c
deleted file mode 100644
index cd09132d5d7d..000000000000
--- a/drivers/scsi/ibmmca.c
+++ /dev/null
@@ -1,2379 +0,0 @@
-/*
- Low Level Linux Driver for the IBM Microchannel SCSI Subsystem for
- Linux Kernel >= 2.4.0.
- Copyright (c) 1995 Strom Systems, Inc. under the terms of the GNU
- General Public License. Written by Martin Kolinek, December 1995.
- Further development by: Chris Beauregard, Klaus Kudielka, Michael Lang
- See the file Documentation/scsi/ibmmca.txt for a detailed description
- of this driver, the commandline arguments and the history of its
- development.
- See the WWW-page: http://www.uni-mainz.de/~langm000/linux.html for latest
- updates, info and ADF-files for adapters supported by this driver.
-
- Alan Cox <alan@lxorguk.ukuu.org.uk>
- Updated for Linux 2.5.45 to use the new error handler, cleaned up the
- lock macros and did a few unavoidable locking tweaks, plus one locking
- fix in the irq and completion path.
-
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/ctype.h>
-#include <linux/string.h>
-#include <linux/interrupt.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <linux/blkdev.h>
-#include <linux/proc_fs.h>
-#include <linux/stat.h>
-#include <linux/mca.h>
-#include <linux/spinlock.h>
-#include <linux/init.h>
-
-#include <asm/io.h>
-
-#include "scsi.h"
-#include <scsi/scsi_host.h>
-
-/* Common forward declarations for all Linux-versions: */
-static int ibmmca_queuecommand (struct Scsi_Host *, struct scsi_cmnd *);
-static int ibmmca_abort (Scsi_Cmnd *);
-static int ibmmca_host_reset (Scsi_Cmnd *);
-static int ibmmca_biosparam (struct scsi_device *, struct block_device *, sector_t, int *);
-static int ibmmca_proc_info(struct Scsi_Host *shpnt, char *buffer, char **start, off_t offset, int length, int inout);
-
-
-
-/* current version of this driver-source: */
-#define IBMMCA_SCSI_DRIVER_VERSION "4.0b-ac"
-
-/* driver configuration */
-#define IM_MAX_HOSTS 8 /* maximum number of host adapters */
-#define IM_RESET_DELAY 60 /* seconds allowed for a reset */
-
-/* driver debugging - #undef all for normal operation */
-/* if defined: count interrupts and ignore this special one: */
-#undef IM_DEBUG_TIMEOUT //50
-#define TIMEOUT_PUN 0
-#define TIMEOUT_LUN 0
-/* verbose interrupt: */
-#undef IM_DEBUG_INT
-/* verbose queuecommand: */
-#undef IM_DEBUG_CMD
-/* verbose queucommand for specific SCSI-device type: */
-#undef IM_DEBUG_CMD_SPEC_DEV
-/* verbose device probing */
-#undef IM_DEBUG_PROBE
-
-/* device type that shall be displayed on syslog (only during debugging): */
-#define IM_DEBUG_CMD_DEVICE TYPE_TAPE
-
-/* relative addresses of hardware registers on a subsystem */
-#define IM_CMD_REG(h) ((h)->io_port) /*Command Interface, (4 bytes long) */
-#define IM_ATTN_REG(h) ((h)->io_port+4) /*Attention (1 byte) */
-#define IM_CTR_REG(h) ((h)->io_port+5) /*Basic Control (1 byte) */
-#define IM_INTR_REG(h) ((h)->io_port+6) /*Interrupt Status (1 byte, r/o) */
-#define IM_STAT_REG(h) ((h)->io_port+7) /*Basic Status (1 byte, read only) */
-
-/* basic I/O-port of first adapter */
-#define IM_IO_PORT 0x3540
-/* maximum number of hosts that can be found */
-#define IM_N_IO_PORT 8
-
-/*requests going into the upper nibble of the Attention register */
-/*note: the lower nibble specifies the device(0-14), or subsystem(15) */
-#define IM_IMM_CMD 0x10 /*immediate command */
-#define IM_SCB 0x30 /*Subsystem Control Block command */
-#define IM_LONG_SCB 0x40 /*long Subsystem Control Block command */
-#define IM_EOI 0xe0 /*end-of-interrupt request */
-
-/*values for bits 7,1,0 of Basic Control reg. (bits 6-2 reserved) */
-#define IM_HW_RESET 0x80 /*hardware reset */
-#define IM_ENABLE_DMA 0x02 /*enable subsystem's busmaster DMA */
-#define IM_ENABLE_INTR 0x01 /*enable interrupts to the system */
-
-/*to interpret the upper nibble of Interrupt Status register */
-/*note: the lower nibble specifies the device(0-14), or subsystem(15) */
-#define IM_SCB_CMD_COMPLETED 0x10
-#define IM_SCB_CMD_COMPLETED_WITH_RETRIES 0x50
-#define IM_LOOP_SCATTER_BUFFER_FULL 0x60
-#define IM_ADAPTER_HW_FAILURE 0x70
-#define IM_IMMEDIATE_CMD_COMPLETED 0xa0
-#define IM_CMD_COMPLETED_WITH_FAILURE 0xc0
-#define IM_CMD_ERROR 0xe0
-#define IM_SOFTWARE_SEQUENCING_ERROR 0xf0
-
-/*to interpret bits 3-0 of Basic Status register (bits 7-4 reserved) */
-#define IM_CMD_REG_FULL 0x08
-#define IM_CMD_REG_EMPTY 0x04
-#define IM_INTR_REQUEST 0x02
-#define IM_BUSY 0x01
-
-/*immediate commands (word written into low 2 bytes of command reg) */
-#define IM_RESET_IMM_CMD 0x0400
-#define IM_FEATURE_CTR_IMM_CMD 0x040c
-#define IM_DMA_PACING_IMM_CMD 0x040d
-#define IM_ASSIGN_IMM_CMD 0x040e
-#define IM_ABORT_IMM_CMD 0x040f
-#define IM_FORMAT_PREP_IMM_CMD 0x0417
-
-/*SCB (Subsystem Control Block) structure */
-struct im_scb {
- unsigned short command; /*command word (read, etc.) */
- unsigned short enable; /*enable word, modifies cmd */
- union {
- unsigned long log_blk_adr; /*block address on SCSI device */
- unsigned char scsi_cmd_length; /*6,10,12, for other scsi cmd */
- } u1;
- unsigned long sys_buf_adr; /*physical system memory adr */
- unsigned long sys_buf_length; /*size of sys mem buffer */
- unsigned long tsb_adr; /*Termination Status Block adr */
- unsigned long scb_chain_adr; /*optional SCB chain address */
- union {
- struct {
- unsigned short count; /*block count, on SCSI device */
- unsigned short length; /*block length, on SCSI device */
- } blk;
- unsigned char scsi_command[12]; /*other scsi command */
- } u2;
-};
-
-/*structure scatter-gather element (for list of system memory areas) */
-struct im_sge {
- void *address;
- unsigned long byte_length;
-};
-
-/*structure returned by a get_pos_info command: */
-struct im_pos_info {
- unsigned short pos_id; /* adapter id */
- unsigned char pos_3a; /* pos 3 (if pos 6 = 0) */
- unsigned char pos_2; /* pos 2 */
- unsigned char int_level; /* interrupt level IRQ 11 or 14 */
- unsigned char pos_4a; /* pos 4 (if pos 6 = 0) */
- unsigned short connector_size; /* MCA connector size: 16 or 32 Bit */
- unsigned char num_luns; /* number of supported luns per device */
- unsigned char num_puns; /* number of supported puns */
- unsigned char pacing_factor; /* pacing factor */
- unsigned char num_ldns; /* number of ldns available */
- unsigned char eoi_off; /* time EOI and interrupt inactive */
- unsigned char max_busy; /* time between reset and busy on */
- unsigned short cache_stat; /* ldn cachestat. Bit=1 = not cached */
- unsigned short retry_stat; /* retry status of ldns. Bit=1=disabled */
- unsigned char pos_4b; /* pos 4 (if pos 6 = 1) */
- unsigned char pos_3b; /* pos 3 (if pos 6 = 1) */
- unsigned char pos_6; /* pos 6 */
- unsigned char pos_5; /* pos 5 */
- unsigned short max_overlap; /* maximum overlapping requests */
- unsigned short num_bus; /* number of SCSI-busses */
-};
-
-/*values for SCB command word */
-#define IM_NO_SYNCHRONOUS 0x0040 /*flag for any command */
-#define IM_NO_DISCONNECT 0x0080 /*flag for any command */
-#define IM_READ_DATA_CMD 0x1c01
-#define IM_WRITE_DATA_CMD 0x1c02
-#define IM_READ_VERIFY_CMD 0x1c03
-#define IM_WRITE_VERIFY_CMD 0x1c04
-#define IM_REQUEST_SENSE_CMD 0x1c08
-#define IM_READ_CAPACITY_CMD 0x1c09
-#define IM_DEVICE_INQUIRY_CMD 0x1c0b
-#define IM_READ_LOGICAL_CMD 0x1c2a
-#define IM_OTHER_SCSI_CMD_CMD 0x241f
-
-/* unused, but supported, SCB commands */
-#define IM_GET_COMMAND_COMPLETE_STATUS_CMD 0x1c07 /* command status */
-#define IM_GET_POS_INFO_CMD 0x1c0a /* returns neat stuff */
-#define IM_READ_PREFETCH_CMD 0x1c31 /* caching controller only */
-#define IM_FOMAT_UNIT_CMD 0x1c16 /* format unit */
-#define IM_REASSIGN_BLOCK_CMD 0x1c18 /* in case of error */
-
-/*values to set bits in the enable word of SCB */
-#define IM_READ_CONTROL 0x8000
-#define IM_REPORT_TSB_ONLY_ON_ERROR 0x4000
-#define IM_RETRY_ENABLE 0x2000
-#define IM_POINTER_TO_LIST 0x1000
-#define IM_SUPRESS_EXCEPTION_SHORT 0x0400
-#define IM_BYPASS_BUFFER 0x0200
-#define IM_CHAIN_ON_NO_ERROR 0x0001
-
-/*TSB (Termination Status Block) structure */
-struct im_tsb {
- unsigned short end_status;
- unsigned short reserved1;
- unsigned long residual_byte_count;
- unsigned long sg_list_element_adr;
- unsigned short status_length;
- unsigned char dev_status;
- unsigned char cmd_status;
- unsigned char dev_error;
- unsigned char cmd_error;
- unsigned short reserved2;
- unsigned short reserved3;
- unsigned short low_of_last_scb_adr;
- unsigned short high_of_last_scb_adr;
-};
-
-/*subsystem uses interrupt request level 14 */
-#define IM_IRQ 14
-/*SCSI-2 F/W may evade to interrupt 11 */
-#define IM_IRQ_FW 11
-
-/* Model 95 has an additional alphanumeric display, which can be used
- to display SCSI-activities. 8595 models do not have any disk led, which
- makes this feature quite useful.
- The regular PS/2 disk led is turned on/off by bits 6,7 of system
- control port. */
-
-/* LED display-port (actually, last LED on display) */
-#define MOD95_LED_PORT 0x108
-/* system-control-register of PS/2s with diskindicator */
-#define PS2_SYS_CTR 0x92
-/* activity displaying methods */
-#define LED_DISP 1
-#define LED_ADISP 2
-#define LED_ACTIVITY 4
-/* failed intr */
-#define CMD_FAIL 255
-
-/* The SCSI-ID(!) of the accessed SCSI-device is shown on PS/2-95 machines' LED
- displays. ldn is no longer displayed here, because the ldn mapping is now
- done dynamically and the ldn <-> pun,lun maps can be looked-up at boottime
- or during uptime in /proc/scsi/ibmmca/<host_no> in case of trouble,
- interest, debugging or just for having fun. The left number gives the
- host-adapter number and the right shows the accessed SCSI-ID. */
-
-/* display_mode is set by the ibmmcascsi= command line arg */
-static int display_mode = 0;
-/* set default adapter timeout */
-static unsigned int adapter_timeout = 45;
-/* for probing on feature-command: */
-static unsigned int global_command_error_excuse = 0;
-/* global setting by command line for adapter_speed */
-static int global_adapter_speed = 0; /* full speed by default */
-
-/* Panel / LED on, do it right for F/W addressin, too. adisplay will
- * just ignore ids>7, as the panel has only 7 digits available */
-#define PS2_DISK_LED_ON(ad,id) { if (display_mode & LED_DISP) { if (id>9) \
- outw((ad+48)|((id+55)<<8), MOD95_LED_PORT ); else \
- outw((ad+48)|((id+48)<<8), MOD95_LED_PORT ); } else \
- if (display_mode & LED_ADISP) { if (id<7) outb((char)(id+48),MOD95_LED_PORT+1+id); \
- outb((char)(ad+48), MOD95_LED_PORT); } \
- if ((display_mode & LED_ACTIVITY)||(!display_mode)) \
- outb(inb(PS2_SYS_CTR) | 0xc0, PS2_SYS_CTR); }
-
-/* Panel / LED off */
-/* bug fixed, Dec 15, 1997, where | was replaced by & here */
-#define PS2_DISK_LED_OFF() { if (display_mode & LED_DISP) \
- outw(0x2020, MOD95_LED_PORT ); else if (display_mode & LED_ADISP) { \
- outl(0x20202020,MOD95_LED_PORT); outl(0x20202020,MOD95_LED_PORT+4); } \
- if ((display_mode & LED_ACTIVITY)||(!display_mode)) \
- outb(inb(PS2_SYS_CTR) & 0x3f, PS2_SYS_CTR); }
-
-/* types of different supported hardware that goes to hostdata special */
-#define IBM_SCSI2_FW 0
-#define IBM_7568_WCACHE 1
-#define IBM_EXP_UNIT 2
-#define IBM_SCSI_WCACHE 3
-#define IBM_SCSI 4
-#define IBM_INTEGSCSI 5
-
-/* other special flags for hostdata structure */
-#define FORCED_DETECTION 100
-#define INTEGRATED_SCSI 101
-
-/* List of possible IBM-SCSI-adapters */
-static short ibmmca_id_table[] = {
- 0x8efc,
- 0x8efd,
- 0x8ef8,
- 0x8eff,
- 0x8efe,
- /* No entry for integrated SCSI, that's part of the register */
- 0
-};
-
-static const char *ibmmca_description[] = {
- "IBM SCSI-2 F/W Adapter", /* special = 0 */
- "IBM 7568 Industrial Computer SCSI Adapter w/Cache", /* special = 1 */
- "IBM Expansion Unit SCSI Controller", /* special = 2 */
- "IBM SCSI Adapter w/Cache", /* special = 3 */
- "IBM SCSI Adapter", /* special = 4 */
- "IBM Integrated SCSI Controller", /* special = 5 */
-};
-
-/* Max number of logical devices (can be up from 0 to 14). 15 is the address
-of the adapter itself. */
-#define MAX_LOG_DEV 15
-
-/*local data for a logical device */
-struct logical_device {
- struct im_scb scb; /* SCSI-subsystem-control-block structure */
- struct im_tsb tsb; /* SCSI command complete status block structure */
- struct im_sge sge[16]; /* scatter gather list structure */
- unsigned char buf[256]; /* SCSI command return data buffer */
- Scsi_Cmnd *cmd; /* SCSI-command that is currently in progress */
- int device_type; /* type of the SCSI-device. See include/scsi/scsi.h
- for interpretation of the possible values */
- int block_length; /* blocksize of a particular logical SCSI-device */
- int cache_flag; /* 1 if this is uncached, 0 if cache is present for ldn */
- int retry_flag; /* 1 if adapter retry is disabled, 0 if enabled */
-};
-
-/* statistics of the driver during operations (for proc_info) */
-struct Driver_Statistics {
- /* SCSI statistics on the adapter */
- int ldn_access[MAX_LOG_DEV + 1]; /* total accesses on a ldn */
- int ldn_read_access[MAX_LOG_DEV + 1]; /* total read-access on a ldn */
- int ldn_write_access[MAX_LOG_DEV + 1]; /* total write-access on a ldn */
- int ldn_inquiry_access[MAX_LOG_DEV + 1]; /* total inquiries on a ldn */
- int ldn_modeselect_access[MAX_LOG_DEV + 1]; /* total mode selects on ldn */
- int scbs; /* short SCBs queued */
- int long_scbs; /* long SCBs queued */
- int total_accesses; /* total accesses on all ldns */
- int total_interrupts; /* total interrupts (should be
- same as total_accesses) */
- int total_errors; /* command completed with error */
- /* dynamical assignment statistics */
- int total_scsi_devices; /* number of physical pun,lun */
- int dyn_flag; /* flag showing dynamical mode */
- int dynamical_assignments; /* number of remappings of ldns */
- int ldn_assignments[MAX_LOG_DEV + 1]; /* number of remappings of each
- ldn */
-};
-
-/* data structure for each host adapter */
-struct ibmmca_hostdata {
- /* array of logical devices: */
- struct logical_device _ld[MAX_LOG_DEV + 1];
- /* array to convert (pun, lun) into logical device number: */
- unsigned char _get_ldn[16][8];
- /*array that contains the information about the physical SCSI-devices
- attached to this host adapter: */
- unsigned char _get_scsi[16][8];
- /* used only when checking logical devices: */
- int _local_checking_phase_flag;
- /* report received interrupt: */
- int _got_interrupt;
- /* report termination-status of SCSI-command: */
- int _stat_result;
- /* reset status (used only when doing reset): */
- int _reset_status;
- /* code of the last SCSI command (needed for panic info): */
- int _last_scsi_command[MAX_LOG_DEV + 1];
- /* identifier of the last SCSI-command type */
- int _last_scsi_type[MAX_LOG_DEV + 1];
- /* last blockcount */
- int _last_scsi_blockcount[MAX_LOG_DEV + 1];
- /* last locgical block address */
- unsigned long _last_scsi_logical_block[MAX_LOG_DEV + 1];
- /* Counter that points on the next reassignable ldn for dynamical
- remapping. The default value is 7, that is the first reassignable
- number in the list at boottime: */
- int _next_ldn;
- /* Statistics-structure for this IBM-SCSI-host: */
- struct Driver_Statistics _IBM_DS;
- /* This hostadapters pos-registers pos2 until pos6 */
- unsigned int _pos[8];
- /* assign a special variable, that contains dedicated info about the
- adaptertype */
- int _special;
- /* connector size on the MCA bus */
- int _connector_size;
- /* synchronous SCSI transfer rate bitpattern */
- int _adapter_speed;
-};
-
-/* macros to access host data structure */
-#define subsystem_pun(h) ((h)->this_id)
-#define subsystem_maxid(h) ((h)->max_id)
-#define ld(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_ld)
-#define get_ldn(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_get_ldn)
-#define get_scsi(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_get_scsi)
-#define local_checking_phase_flag(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_local_checking_phase_flag)
-#define got_interrupt(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_got_interrupt)
-#define stat_result(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_stat_result)
-#define reset_status(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_reset_status)
-#define last_scsi_command(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_last_scsi_command)
-#define last_scsi_type(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_last_scsi_type)
-#define last_scsi_blockcount(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_last_scsi_blockcount)
-#define last_scsi_logical_block(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_last_scsi_logical_block)
-#define last_scsi_type(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_last_scsi_type)
-#define next_ldn(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_next_ldn)
-#define IBM_DS(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_IBM_DS)
-#define special(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_special)
-#define subsystem_connector_size(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_connector_size)
-#define adapter_speed(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_adapter_speed)
-#define pos2(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_pos[2])
-#define pos3(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_pos[3])
-#define pos4(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_pos[4])
-#define pos5(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_pos[5])
-#define pos6(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_pos[6])
-
-/* Define a arbitrary number as subsystem-marker-type. This number is, as
- described in the ANSI-SCSI-standard, not occupied by other device-types. */
-#define TYPE_IBM_SCSI_ADAPTER 0x2F
-
-/* Define 0xFF for no device type, because this type is not defined within
- the ANSI-SCSI-standard, therefore, it can be used and should not cause any
- harm. */
-#define TYPE_NO_DEVICE 0xFF
-
-/* define medium-changer. If this is not defined previously, e.g. Linux
- 2.0.x, define this type here. */
-#ifndef TYPE_MEDIUM_CHANGER
-#define TYPE_MEDIUM_CHANGER 0x08
-#endif
-
-/* define possible operations for the immediate_assign command */
-#define SET_LDN 0
-#define REMOVE_LDN 1
-
-/* ldn which is used to probe the SCSI devices */
-#define PROBE_LDN 0
-
-/* reset status flag contents */
-#define IM_RESET_NOT_IN_PROGRESS 0
-#define IM_RESET_IN_PROGRESS 1
-#define IM_RESET_FINISHED_OK 2
-#define IM_RESET_FINISHED_FAIL 3
-#define IM_RESET_NOT_IN_PROGRESS_NO_INT 4
-#define IM_RESET_FINISHED_OK_NO_INT 5
-
-/* define undefined SCSI-command */
-#define NO_SCSI 0xffff
-
-/*-----------------------------------------------------------------------*/
-
-/* if this is nonzero, ibmmcascsi option has been passed to the kernel */
-static int io_port[IM_MAX_HOSTS] = { 0, 0, 0, 0, 0, 0, 0, 0 };
-static int scsi_id[IM_MAX_HOSTS] = { 7, 7, 7, 7, 7, 7, 7, 7 };
-
-/* fill module-parameters only, when this define is present.
- (that is kernel version 2.1.x) */
-#if defined(MODULE)
-static char *boot_options = NULL;
-module_param(boot_options, charp, 0);
-module_param_array(io_port, int, NULL, 0);
-module_param_array(scsi_id, int, NULL, 0);
-
-MODULE_LICENSE("GPL");
-#endif
-/*counter of concurrent disk read/writes, to turn on/off disk led */
-static int disk_rw_in_progress = 0;
-
-static unsigned int pos[8]; /* whole pos register-line for diagnosis */
-/* Taking into account the additions, made by ZP Gu.
- * This selects now the preset value from the configfile and
- * offers the 'normal' commandline option to be accepted */
-#ifdef CONFIG_IBMMCA_SCSI_ORDER_STANDARD
-static char ibm_ansi_order = 1;
-#else
-static char ibm_ansi_order = 0;
-#endif
-
-static void issue_cmd(struct Scsi_Host *, unsigned long, unsigned char);
-static void internal_done(Scsi_Cmnd * cmd);
-static void check_devices(struct Scsi_Host *, int);
-static int immediate_assign(struct Scsi_Host *, unsigned int, unsigned int, unsigned int, unsigned int);
-static int immediate_feature(struct Scsi_Host *, unsigned int, unsigned int);
-#ifdef CONFIG_IBMMCA_SCSI_DEV_RESET
-static int immediate_reset(struct Scsi_Host *, unsigned int);
-#endif
-static int device_inquiry(struct Scsi_Host *, int);
-static int read_capacity(struct Scsi_Host *, int);
-static int get_pos_info(struct Scsi_Host *);
-static char *ti_p(int);
-static char *ti_l(int);
-static char *ibmrate(unsigned int, int);
-static int probe_display(int);
-static int probe_bus_mode(struct Scsi_Host *);
-static int device_exists(struct Scsi_Host *, int, int *, int *);
-static int option_setup(char *);
-/* local functions needed for proc_info */
-static int ldn_access_load(struct Scsi_Host *, int);
-static int ldn_access_total_read_write(struct Scsi_Host *);
-
-static irqreturn_t interrupt_handler(int irq, void *dev_id)
-{
- unsigned int intr_reg;
- unsigned int cmd_result;
- unsigned int ldn;
- unsigned long flags;
- Scsi_Cmnd *cmd;
- int lastSCSI;
- struct device *dev = dev_id;
- struct Scsi_Host *shpnt = dev_get_drvdata(dev);
-
- spin_lock_irqsave(shpnt->host_lock, flags);
-
- if(!(inb(IM_STAT_REG(shpnt)) & IM_INTR_REQUEST)) {
- spin_unlock_irqrestore(shpnt->host_lock, flags);
- return IRQ_NONE;
- }
-
- /* the reset-function already did all the job, even ints got
- renabled on the subsystem, so just return */
- if ((reset_status(shpnt) == IM_RESET_NOT_IN_PROGRESS_NO_INT) || (reset_status(shpnt) == IM_RESET_FINISHED_OK_NO_INT)) {
- reset_status(shpnt) = IM_RESET_NOT_IN_PROGRESS;
- spin_unlock_irqrestore(shpnt->host_lock, flags);
- return IRQ_HANDLED;
- }
-
- /*must wait for attention reg not busy, then send EOI to subsystem */
- while (1) {
- if (!(inb(IM_STAT_REG(shpnt)) & IM_BUSY))
- break;
- cpu_relax();
- }
-
- /*get command result and logical device */
- intr_reg = (unsigned char) (inb(IM_INTR_REG(shpnt)));
- cmd_result = intr_reg & 0xf0;
- ldn = intr_reg & 0x0f;
- /* get the last_scsi_command here */
- lastSCSI = last_scsi_command(shpnt)[ldn];
- outb(IM_EOI | ldn, IM_ATTN_REG(shpnt));
-
- /*these should never happen (hw fails, or a local programming bug) */
- if (!global_command_error_excuse) {
- switch (cmd_result) {
- /* Prevent from Ooopsing on error to show the real reason */
- case IM_ADAPTER_HW_FAILURE:
- case IM_SOFTWARE_SEQUENCING_ERROR:
- case IM_CMD_ERROR:
- printk(KERN_ERR "IBM MCA SCSI: Fatal Subsystem ERROR!\n");
- printk(KERN_ERR " Last cmd=0x%x, ena=%x, len=", lastSCSI, ld(shpnt)[ldn].scb.enable);
- if (ld(shpnt)[ldn].cmd)
- printk("%ld/%ld,", (long) (scsi_bufflen(ld(shpnt)[ldn].cmd)), (long) (ld(shpnt)[ldn].scb.sys_buf_length));
- else
- printk("none,");
- if (ld(shpnt)[ldn].cmd)
- printk("Blocksize=%d", ld(shpnt)[ldn].scb.u2.blk.length);
- else
- printk("Blocksize=none");
- printk(", host=%p, ldn=0x%x\n", shpnt, ldn);
- if (ld(shpnt)[ldn].cmd) {
- printk(KERN_ERR "Blockcount=%d/%d\n", last_scsi_blockcount(shpnt)[ldn], ld(shpnt)[ldn].scb.u2.blk.count);
- printk(KERN_ERR "Logical block=%lx/%lx\n", last_scsi_logical_block(shpnt)[ldn], ld(shpnt)[ldn].scb.u1.log_blk_adr);
- }
- printk(KERN_ERR "Reason given: %s\n", (cmd_result == IM_ADAPTER_HW_FAILURE) ? "HARDWARE FAILURE" : (cmd_result == IM_SOFTWARE_SEQUENCING_ERROR) ? "SOFTWARE SEQUENCING ERROR" : (cmd_result == IM_CMD_ERROR) ? "COMMAND ERROR" : "UNKNOWN");
- /* if errors appear, enter this section to give detailed info */
- printk(KERN_ERR "IBM MCA SCSI: Subsystem Error-Status follows:\n");
- printk(KERN_ERR " Command Type................: %x\n", last_scsi_type(shpnt)[ldn]);
- printk(KERN_ERR " Attention Register..........: %x\n", inb(IM_ATTN_REG(shpnt)));
- printk(KERN_ERR " Basic Control Register......: %x\n", inb(IM_CTR_REG(shpnt)));
- printk(KERN_ERR " Interrupt Status Register...: %x\n", intr_reg);
- printk(KERN_ERR " Basic Status Register.......: %x\n", inb(IM_STAT_REG(shpnt)));
- if ((last_scsi_type(shpnt)[ldn] == IM_SCB) || (last_scsi_type(shpnt)[ldn] == IM_LONG_SCB)) {
- printk(KERN_ERR " SCB-Command.................: %x\n", ld(shpnt)[ldn].scb.command);
- printk(KERN_ERR " SCB-Enable..................: %x\n", ld(shpnt)[ldn].scb.enable);
- printk(KERN_ERR " SCB-logical block address...: %lx\n", ld(shpnt)[ldn].scb.u1.log_blk_adr);
- printk(KERN_ERR " SCB-system buffer address...: %lx\n", ld(shpnt)[ldn].scb.sys_buf_adr);
- printk(KERN_ERR " SCB-system buffer length....: %lx\n", ld(shpnt)[ldn].scb.sys_buf_length);
- printk(KERN_ERR " SCB-tsb address.............: %lx\n", ld(shpnt)[ldn].scb.tsb_adr);
- printk(KERN_ERR " SCB-Chain address...........: %lx\n", ld(shpnt)[ldn].scb.scb_chain_adr);
- printk(KERN_ERR " SCB-block count.............: %x\n", ld(shpnt)[ldn].scb.u2.blk.count);
- printk(KERN_ERR " SCB-block length............: %x\n", ld(shpnt)[ldn].scb.u2.blk.length);
- }
- printk(KERN_ERR " Send this report to the maintainer.\n");
- panic("IBM MCA SCSI: Fatal error message from the subsystem (0x%X,0x%X)!\n", lastSCSI, cmd_result);
- break;
- }
- } else {
- /* The command error handling is made silent, but we tell the
- * calling function, that there is a reported error from the
- * adapter. */
- switch (cmd_result) {
- case IM_ADAPTER_HW_FAILURE:
- case IM_SOFTWARE_SEQUENCING_ERROR:
- case IM_CMD_ERROR:
- global_command_error_excuse = CMD_FAIL;
- break;
- default:
- global_command_error_excuse = 0;
- break;
- }
- }
- /* if no panic appeared, increase the interrupt-counter */
- IBM_DS(shpnt).total_interrupts++;
- /*only for local checking phase */
- if (local_checking_phase_flag(shpnt)) {
- stat_result(shpnt) = cmd_result;
- got_interrupt(shpnt) = 1;
- reset_status(shpnt) = IM_RESET_FINISHED_OK;
- last_scsi_command(shpnt)[ldn] = NO_SCSI;
- spin_unlock_irqrestore(shpnt->host_lock, flags);
- return IRQ_HANDLED;
- }
- /* handling of commands coming from upper level of scsi driver */
- if (last_scsi_type(shpnt)[ldn] == IM_IMM_CMD) {
- /* verify ldn, and may handle rare reset immediate command */
- if ((reset_status(shpnt) == IM_RESET_IN_PROGRESS) && (last_scsi_command(shpnt)[ldn] == IM_RESET_IMM_CMD)) {
- if (cmd_result == IM_CMD_COMPLETED_WITH_FAILURE) {
- disk_rw_in_progress = 0;
- PS2_DISK_LED_OFF();
- reset_status(shpnt) = IM_RESET_FINISHED_FAIL;
- } else {
- /*reset disk led counter, turn off disk led */
- disk_rw_in_progress = 0;
- PS2_DISK_LED_OFF();
- reset_status(shpnt) = IM_RESET_FINISHED_OK;
- }
- stat_result(shpnt) = cmd_result;
- last_scsi_command(shpnt)[ldn] = NO_SCSI;
- last_scsi_type(shpnt)[ldn] = 0;
- spin_unlock_irqrestore(shpnt->host_lock, flags);
- return IRQ_HANDLED;
- } else if (last_scsi_command(shpnt)[ldn] == IM_ABORT_IMM_CMD) {
- /* react on SCSI abort command */
-#ifdef IM_DEBUG_PROBE
- printk("IBM MCA SCSI: Interrupt from SCSI-abort.\n");
-#endif
- disk_rw_in_progress = 0;
- PS2_DISK_LED_OFF();
- cmd = ld(shpnt)[ldn].cmd;
- ld(shpnt)[ldn].cmd = NULL;
- if (cmd_result == IM_CMD_COMPLETED_WITH_FAILURE)
- cmd->result = DID_NO_CONNECT << 16;
- else
- cmd->result = DID_ABORT << 16;
- stat_result(shpnt) = cmd_result;
- last_scsi_command(shpnt)[ldn] = NO_SCSI;
- last_scsi_type(shpnt)[ldn] = 0;
- if (cmd->scsi_done)
- (cmd->scsi_done) (cmd); /* should be the internal_done */
- spin_unlock_irqrestore(shpnt->host_lock, flags);
- return IRQ_HANDLED;
- } else {
- disk_rw_in_progress = 0;
- PS2_DISK_LED_OFF();
- reset_status(shpnt) = IM_RESET_FINISHED_OK;
- stat_result(shpnt) = cmd_result;
- last_scsi_command(shpnt)[ldn] = NO_SCSI;
- spin_unlock_irqrestore(shpnt->host_lock, flags);
- return IRQ_HANDLED;
- }
- }
- last_scsi_command(shpnt)[ldn] = NO_SCSI;
- last_scsi_type(shpnt)[ldn] = 0;
- cmd = ld(shpnt)[ldn].cmd;
- ld(shpnt)[ldn].cmd = NULL;
-#ifdef IM_DEBUG_TIMEOUT
- if (cmd) {
- if ((cmd->target == TIMEOUT_PUN) && (cmd->device->lun == TIMEOUT_LUN)) {
- spin_unlock_irqsave(shpnt->host_lock, flags);
- printk("IBM MCA SCSI: Ignoring interrupt from pun=%x, lun=%x.\n", cmd->target, cmd->device->lun);
- return IRQ_HANDLED;
- }
- }
-#endif
- /*if no command structure, just return, else clear cmd */
- if (!cmd)
- {
- spin_unlock_irqrestore(shpnt->host_lock, flags);
- return IRQ_HANDLED;
- }
-
-#ifdef IM_DEBUG_INT
- printk("cmd=%02x ireg=%02x ds=%02x cs=%02x de=%02x ce=%02x\n", cmd->cmnd[0], intr_reg, ld(shpnt)[ldn].tsb.dev_status, ld(shpnt)[ldn].tsb.cmd_status, ld(shpnt)[ldn].tsb.dev_error, ld(shpnt)[ldn].tsb.cmd_error);
-#endif
- /*if this is end of media read/write, may turn off PS/2 disk led */
- if ((ld(shpnt)[ldn].device_type != TYPE_NO_LUN) && (ld(shpnt)[ldn].device_type != TYPE_NO_DEVICE)) {
- /* only access this, if there was a valid device addressed */
- if (--disk_rw_in_progress == 0)
- PS2_DISK_LED_OFF();
- }
-
- /* IBM describes the status-mask to be 0x1e, but this is not conform
- * with SCSI-definition, I suppose, the reason for it is that IBM
- * adapters do not support CMD_TERMINATED, TASK_SET_FULL and
- * ACA_ACTIVE as returning statusbyte information. (ML) */
- if (cmd_result == IM_CMD_COMPLETED_WITH_FAILURE) {
- cmd->result = (unsigned char) (ld(shpnt)[ldn].tsb.dev_status & 0x1e);
- IBM_DS(shpnt).total_errors++;
- } else
- cmd->result = 0;
- /* write device status into cmd->result, and call done function */
- if (lastSCSI == NO_SCSI) { /* unexpected interrupt :-( */
- cmd->result |= DID_BAD_INTR << 16;
- printk("IBM MCA SCSI: WARNING - Interrupt from non-pending SCSI-command!\n");
- } else /* things went right :-) */
- cmd->result |= DID_OK << 16;
- if (cmd->scsi_done)
- (cmd->scsi_done) (cmd);
- spin_unlock_irqrestore(shpnt->host_lock, flags);
- return IRQ_HANDLED;
-}
-
-static void issue_cmd(struct Scsi_Host *shpnt, unsigned long cmd_reg,
- unsigned char attn_reg)
-{
- unsigned long flags;
- /* must wait for attention reg not busy */
- while (1) {
- spin_lock_irqsave(shpnt->host_lock, flags);
- if (!(inb(IM_STAT_REG(shpnt)) & IM_BUSY))
- break;
- spin_unlock_irqrestore(shpnt->host_lock, flags);
- }
- /* write registers and enable system interrupts */
- outl(cmd_reg, IM_CMD_REG(shpnt));
- outb(attn_reg, IM_ATTN_REG(shpnt));
- spin_unlock_irqrestore(shpnt->host_lock, flags);
-}
-
-static void internal_done(Scsi_Cmnd * cmd)
-{
- cmd->SCp.Status++;
- return;
-}
-
-/* SCSI-SCB-command for device_inquiry */
-static int device_inquiry(struct Scsi_Host *shpnt, int ldn)
-{
- int retr;
- struct im_scb *scb;
- struct im_tsb *tsb;
- unsigned char *buf;
-
- scb = &(ld(shpnt)[ldn].scb);
- tsb = &(ld(shpnt)[ldn].tsb);
- buf = (unsigned char *) (&(ld(shpnt)[ldn].buf));
- ld(shpnt)[ldn].tsb.dev_status = 0; /* prepare statusblock */
- for (retr = 0; retr < 3; retr++) {
- /* fill scb with inquiry command */
- scb->command = IM_DEVICE_INQUIRY_CMD | IM_NO_DISCONNECT;
- scb->enable = IM_REPORT_TSB_ONLY_ON_ERROR | IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT | IM_RETRY_ENABLE | IM_BYPASS_BUFFER;
- last_scsi_command(shpnt)[ldn] = IM_DEVICE_INQUIRY_CMD;
- last_scsi_type(shpnt)[ldn] = IM_SCB;
- scb->sys_buf_adr = isa_virt_to_bus(buf);
- scb->sys_buf_length = 255; /* maximum bufferlength gives max info */
- scb->tsb_adr = isa_virt_to_bus(tsb);
- /* issue scb to passed ldn, and busy wait for interrupt */
- got_interrupt(shpnt) = 0;
- issue_cmd(shpnt, isa_virt_to_bus(scb), IM_SCB | ldn);
- while (!got_interrupt(shpnt))
- barrier();
-
- /*if command successful, break */
- if ((stat_result(shpnt) == IM_SCB_CMD_COMPLETED) || (stat_result(shpnt) == IM_SCB_CMD_COMPLETED_WITH_RETRIES))
- return 1;
- }
- /*if all three retries failed, return "no device at this ldn" */
- if (retr >= 3)
- return 0;
- else
- return 1;
-}
-
-static int read_capacity(struct Scsi_Host *shpnt, int ldn)
-{
- int retr;
- struct im_scb *scb;
- struct im_tsb *tsb;
- unsigned char *buf;
-
- scb = &(ld(shpnt)[ldn].scb);
- tsb = &(ld(shpnt)[ldn].tsb);
- buf = (unsigned char *) (&(ld(shpnt)[ldn].buf));
- ld(shpnt)[ldn].tsb.dev_status = 0;
- for (retr = 0; retr < 3; retr++) {
- /*fill scb with read capacity command */
- scb->command = IM_READ_CAPACITY_CMD;
- scb->enable = IM_REPORT_TSB_ONLY_ON_ERROR | IM_READ_CONTROL | IM_RETRY_ENABLE | IM_BYPASS_BUFFER;
- last_scsi_command(shpnt)[ldn] = IM_READ_CAPACITY_CMD;
- last_scsi_type(shpnt)[ldn] = IM_SCB;
- scb->sys_buf_adr = isa_virt_to_bus(buf);
- scb->sys_buf_length = 8;
- scb->tsb_adr = isa_virt_to_bus(tsb);
- /*issue scb to passed ldn, and busy wait for interrupt */
- got_interrupt(shpnt) = 0;
- issue_cmd(shpnt, isa_virt_to_bus(scb), IM_SCB | ldn);
- while (!got_interrupt(shpnt))
- barrier();
-
- /*if got capacity, get block length and return one device found */
- if ((stat_result(shpnt) == IM_SCB_CMD_COMPLETED) || (stat_result(shpnt) == IM_SCB_CMD_COMPLETED_WITH_RETRIES))
- return 1;
- }
- /*if all three retries failed, return "no device at this ldn" */
- if (retr >= 3)
- return 0;
- else
- return 1;
-}
-
-static int get_pos_info(struct Scsi_Host *shpnt)
-{
- int retr;
- struct im_scb *scb;
- struct im_tsb *tsb;
- unsigned char *buf;
-
- scb = &(ld(shpnt)[MAX_LOG_DEV].scb);
- tsb = &(ld(shpnt)[MAX_LOG_DEV].tsb);
- buf = (unsigned char *) (&(ld(shpnt)[MAX_LOG_DEV].buf));
- ld(shpnt)[MAX_LOG_DEV].tsb.dev_status = 0;
- for (retr = 0; retr < 3; retr++) {
- /*fill scb with get_pos_info command */
- scb->command = IM_GET_POS_INFO_CMD;
- scb->enable = IM_READ_CONTROL | IM_REPORT_TSB_ONLY_ON_ERROR | IM_RETRY_ENABLE | IM_BYPASS_BUFFER;
- last_scsi_command(shpnt)[MAX_LOG_DEV] = IM_GET_POS_INFO_CMD;
- last_scsi_type(shpnt)[MAX_LOG_DEV] = IM_SCB;
- scb->sys_buf_adr = isa_virt_to_bus(buf);
- if (special(shpnt) == IBM_SCSI2_FW)
- scb->sys_buf_length = 256; /* get all info from F/W adapter */
- else
- scb->sys_buf_length = 18; /* get exactly 18 bytes for other SCSI */
- scb->tsb_adr = isa_virt_to_bus(tsb);
- /*issue scb to ldn=15, and busy wait for interrupt */
- got_interrupt(shpnt) = 0;
- issue_cmd(shpnt, isa_virt_to_bus(scb), IM_SCB | MAX_LOG_DEV);
-
- /* FIXME: timeout */
- while (!got_interrupt(shpnt))
- barrier();
-
- /*if got POS-stuff, get block length and return one device found */
- if ((stat_result(shpnt) == IM_SCB_CMD_COMPLETED) || (stat_result(shpnt) == IM_SCB_CMD_COMPLETED_WITH_RETRIES))
- return 1;
- }
- /* if all three retries failed, return "no device at this ldn" */
- if (retr >= 3)
- return 0;
- else
- return 1;
-}
-
-/* SCSI-immediate-command for assign. This functions maps/unmaps specific
- ldn-numbers on SCSI (PUN,LUN). It is needed for presetting of the
- subsystem and for dynamical remapping od ldns. */
-static int immediate_assign(struct Scsi_Host *shpnt, unsigned int pun,
- unsigned int lun, unsigned int ldn,
- unsigned int operation)
-{
- int retr;
- unsigned long imm_cmd;
-
- for (retr = 0; retr < 3; retr++) {
- /* select mutation level of the SCSI-adapter */
- switch (special(shpnt)) {
- case IBM_SCSI2_FW:
- imm_cmd = (unsigned long) (IM_ASSIGN_IMM_CMD);
- imm_cmd |= (unsigned long) ((lun & 7) << 24);
- imm_cmd |= (unsigned long) ((operation & 1) << 23);
- imm_cmd |= (unsigned long) ((pun & 7) << 20) | ((pun & 8) << 24);
- imm_cmd |= (unsigned long) ((ldn & 15) << 16);
- break;
- default:
- imm_cmd = inl(IM_CMD_REG(shpnt));
- imm_cmd &= (unsigned long) (0xF8000000); /* keep reserved bits */
- imm_cmd |= (unsigned long) (IM_ASSIGN_IMM_CMD);
- imm_cmd |= (unsigned long) ((lun & 7) << 24);
- imm_cmd |= (unsigned long) ((operation & 1) << 23);
- imm_cmd |= (unsigned long) ((pun & 7) << 20);
- imm_cmd |= (unsigned long) ((ldn & 15) << 16);
- break;
- }
- last_scsi_command(shpnt)[MAX_LOG_DEV] = IM_ASSIGN_IMM_CMD;
- last_scsi_type(shpnt)[MAX_LOG_DEV] = IM_IMM_CMD;
- got_interrupt(shpnt) = 0;
- issue_cmd(shpnt, (unsigned long) (imm_cmd), IM_IMM_CMD | MAX_LOG_DEV);
- while (!got_interrupt(shpnt))
- barrier();
-
- /*if command successful, break */
- if (stat_result(shpnt) == IM_IMMEDIATE_CMD_COMPLETED)
- return 1;
- }
- if (retr >= 3)
- return 0;
- else
- return 1;
-}
-
-static int immediate_feature(struct Scsi_Host *shpnt, unsigned int speed, unsigned int timeout)
-{
- int retr;
- unsigned long imm_cmd;
-
- for (retr = 0; retr < 3; retr++) {
- /* select mutation level of the SCSI-adapter */
- imm_cmd = IM_FEATURE_CTR_IMM_CMD;
- imm_cmd |= (unsigned long) ((speed & 0x7) << 29);
- imm_cmd |= (unsigned long) ((timeout & 0x1fff) << 16);
- last_scsi_command(shpnt)[MAX_LOG_DEV] = IM_FEATURE_CTR_IMM_CMD;
- last_scsi_type(shpnt)[MAX_LOG_DEV] = IM_IMM_CMD;
- got_interrupt(shpnt) = 0;
- /* we need to run into command errors in order to probe for the
- * right speed! */
- global_command_error_excuse = 1;
- issue_cmd(shpnt, (unsigned long) (imm_cmd), IM_IMM_CMD | MAX_LOG_DEV);
-
- /* FIXME: timeout */
- while (!got_interrupt(shpnt))
- barrier();
- if (global_command_error_excuse == CMD_FAIL) {
- global_command_error_excuse = 0;
- return 2;
- } else
- global_command_error_excuse = 0;
- /*if command successful, break */
- if (stat_result(shpnt) == IM_IMMEDIATE_CMD_COMPLETED)
- return 1;
- }
- if (retr >= 3)
- return 0;
- else
- return 1;
-}
-
-#ifdef CONFIG_IBMMCA_SCSI_DEV_RESET
-static int immediate_reset(struct Scsi_Host *shpnt, unsigned int ldn)
-{
- int retries;
- int ticks;
- unsigned long imm_command;
-
- for (retries = 0; retries < 3; retries++) {
- imm_command = inl(IM_CMD_REG(shpnt));
- imm_command &= (unsigned long) (0xFFFF0000); /* keep reserved bits */
- imm_command |= (unsigned long) (IM_RESET_IMM_CMD);
- last_scsi_command(shpnt)[ldn] = IM_RESET_IMM_CMD;
- last_scsi_type(shpnt)[ldn] = IM_IMM_CMD;
- got_interrupt(shpnt) = 0;
- reset_status(shpnt) = IM_RESET_IN_PROGRESS;
- issue_cmd(shpnt, (unsigned long) (imm_command), IM_IMM_CMD | ldn);
- ticks = IM_RESET_DELAY * HZ;
- while (reset_status(shpnt) == IM_RESET_IN_PROGRESS && --ticks) {
- udelay((1 + 999 / HZ) * 1000);
- barrier();
- }
- /* if reset did not complete, just complain */
- if (!ticks) {
- printk(KERN_ERR "IBM MCA SCSI: reset did not complete within %d seconds.\n", IM_RESET_DELAY);
- reset_status(shpnt) = IM_RESET_FINISHED_OK;
- /* did not work, finish */
- return 1;
- }
- /*if command successful, break */
- if (stat_result(shpnt) == IM_IMMEDIATE_CMD_COMPLETED)
- return 1;
- }
- if (retries >= 3)
- return 0;
- else
- return 1;
-}
-#endif
-
-/* type-interpreter for physical device numbers */
-static char *ti_p(int dev)
-{
- switch (dev) {
- case TYPE_IBM_SCSI_ADAPTER:
- return ("A");
- case TYPE_DISK:
- return ("D");
- case TYPE_TAPE:
- return ("T");
- case TYPE_PROCESSOR:
- return ("P");
- case TYPE_WORM:
- return ("W");
- case TYPE_ROM:
- return ("R");
- case TYPE_SCANNER:
- return ("S");
- case TYPE_MOD:
- return ("M");
- case TYPE_MEDIUM_CHANGER:
- return ("C");
- case TYPE_NO_LUN:
- return ("+"); /* show NO_LUN */
- }
- return ("-"); /* TYPE_NO_DEVICE and others */
-}
-
-/* interpreter for logical device numbers (ldn) */
-static char *ti_l(int val)
-{
- const char hex[16] = "0123456789abcdef";
- static char answer[2];
-
- answer[1] = (char) (0x0);
- if (val <= MAX_LOG_DEV)
- answer[0] = hex[val];
- else
- answer[0] = '-';
- return (char *) &answer;
-}
-
-/* transfers bitpattern of the feature command to values in MHz */
-static char *ibmrate(unsigned int speed, int i)
-{
- switch (speed) {
- case 0:
- return i ? "5.00" : "10.00";
- case 1:
- return i ? "4.00" : "8.00";
- case 2:
- return i ? "3.33" : "6.66";
- case 3:
- return i ? "2.86" : "5.00";
- case 4:
- return i ? "2.50" : "4.00";
- case 5:
- return i ? "2.22" : "3.10";
- case 6:
- return i ? "2.00" : "2.50";
- case 7:
- return i ? "1.82" : "2.00";
- }
- return "---";
-}
-
-static int probe_display(int what)
-{
- static int rotator = 0;
- const char rotor[] = "|/-\\";
-
- if (!(display_mode & LED_DISP))
- return 0;
- if (!what) {
- outl(0x20202020, MOD95_LED_PORT);
- outl(0x20202020, MOD95_LED_PORT + 4);
- } else {
- outb('S', MOD95_LED_PORT + 7);
- outb('C', MOD95_LED_PORT + 6);
- outb('S', MOD95_LED_PORT + 5);
- outb('I', MOD95_LED_PORT + 4);
- outb('i', MOD95_LED_PORT + 3);
- outb('n', MOD95_LED_PORT + 2);
- outb('i', MOD95_LED_PORT + 1);
- outb((char) (rotor[rotator]), MOD95_LED_PORT);
- rotator++;
- if (rotator > 3)
- rotator = 0;
- }
- return 0;
-}
-
-static int probe_bus_mode(struct Scsi_Host *shpnt)
-{
- struct im_pos_info *info;
- int num_bus = 0;
- int ldn;
-
- info = (struct im_pos_info *) (&(ld(shpnt)[MAX_LOG_DEV].buf));
- if (get_pos_info(shpnt)) {
- if (info->connector_size & 0xf000)
- subsystem_connector_size(shpnt) = 16;
- else
- subsystem_connector_size(shpnt) = 32;
- num_bus |= (info->pos_4b & 8) >> 3;
- for (ldn = 0; ldn <= MAX_LOG_DEV; ldn++) {
- if ((special(shpnt) == IBM_SCSI_WCACHE) || (special(shpnt) == IBM_7568_WCACHE)) {
- if (!((info->cache_stat >> ldn) & 1))
- ld(shpnt)[ldn].cache_flag = 0;
- }
- if (!((info->retry_stat >> ldn) & 1))
- ld(shpnt)[ldn].retry_flag = 0;
- }
-#ifdef IM_DEBUG_PROBE
- printk("IBM MCA SCSI: SCSI-Cache bits: ");
- for (ldn = 0; ldn <= MAX_LOG_DEV; ldn++) {
- printk("%d", ld(shpnt)[ldn].cache_flag);
- }
- printk("\nIBM MCA SCSI: SCSI-Retry bits: ");
- for (ldn = 0; ldn <= MAX_LOG_DEV; ldn++) {
- printk("%d", ld(shpnt)[ldn].retry_flag);
- }
- printk("\n");
-#endif
- }
- return num_bus;
-}
-
-/* probing scsi devices */
-static void check_devices(struct Scsi_Host *shpnt, int adaptertype)
-{
- int id, lun, ldn, ticks;
- int count_devices; /* local counter for connected device */
- int max_pun;
- int num_bus;
- int speedrun; /* local adapter_speed check variable */
-
- /* assign default values to certain variables */
- ticks = 0;
- count_devices = 0;
- IBM_DS(shpnt).dyn_flag = 0; /* normally no need for dynamical ldn management */
- IBM_DS(shpnt).total_errors = 0; /* set errorcounter to 0 */
- next_ldn(shpnt) = 7; /* next ldn to be assigned is 7, because 0-6 is 'hardwired' */
-
- /* initialize the very important driver-informational arrays/structs */
- memset(ld(shpnt), 0, sizeof(ld(shpnt)));
- for (ldn = 0; ldn <= MAX_LOG_DEV; ldn++) {
- last_scsi_command(shpnt)[ldn] = NO_SCSI; /* emptify last SCSI-command storage */
- last_scsi_type(shpnt)[ldn] = 0;
- ld(shpnt)[ldn].cache_flag = 1;
- ld(shpnt)[ldn].retry_flag = 1;
- }
- memset(get_ldn(shpnt), TYPE_NO_DEVICE, sizeof(get_ldn(shpnt))); /* this is essential ! */
- memset(get_scsi(shpnt), TYPE_NO_DEVICE, sizeof(get_scsi(shpnt))); /* this is essential ! */
- for (lun = 0; lun < 8; lun++) {
- /* mark the adapter at its pun on all luns */
- get_scsi(shpnt)[subsystem_pun(shpnt)][lun] = TYPE_IBM_SCSI_ADAPTER;
- get_ldn(shpnt)[subsystem_pun(shpnt)][lun] = MAX_LOG_DEV; /* make sure, the subsystem
- ldn is active for all
- luns. */
- }
- probe_display(0); /* Supercool display usage during SCSI-probing. */
- /* This makes sense, when booting without any */
- /* monitor connected on model XX95. */
-
- /* STEP 1: */
- adapter_speed(shpnt) = global_adapter_speed;
- speedrun = adapter_speed(shpnt);
- while (immediate_feature(shpnt, speedrun, adapter_timeout) == 2) {
- probe_display(1);
- if (speedrun == 7)
- panic("IBM MCA SCSI: Cannot set Synchronous-Transfer-Rate!\n");
- speedrun++;
- if (speedrun > 7)
- speedrun = 7;
- }
- adapter_speed(shpnt) = speedrun;
- /* Get detailed information about the current adapter, necessary for
- * device operations: */
- num_bus = probe_bus_mode(shpnt);
-
- /* num_bus contains only valid data for the F/W adapter! */
- if (adaptertype == IBM_SCSI2_FW) { /* F/W SCSI adapter: */
- /* F/W adapter PUN-space extension evaluation: */
- if (num_bus) {
- printk(KERN_INFO "IBM MCA SCSI: Separate bus mode (wide-addressing enabled)\n");
- subsystem_maxid(shpnt) = 16;
- } else {
- printk(KERN_INFO "IBM MCA SCSI: Combined bus mode (wide-addressing disabled)\n");
- subsystem_maxid(shpnt) = 8;
- }
- printk(KERN_INFO "IBM MCA SCSI: Sync.-Rate (F/W: 20, Int.: 10, Ext.: %s) MBytes/s\n", ibmrate(speedrun, adaptertype));
- } else /* all other IBM SCSI adapters: */
- printk(KERN_INFO "IBM MCA SCSI: Synchronous-SCSI-Transfer-Rate: %s MBytes/s\n", ibmrate(speedrun, adaptertype));
-
- /* assign correct PUN device space */
- max_pun = subsystem_maxid(shpnt);
-
-#ifdef IM_DEBUG_PROBE
- printk("IBM MCA SCSI: Current SCSI-host index: %d\n", shpnt);
- printk("IBM MCA SCSI: Removing default logical SCSI-device mapping.");
-#else
- printk(KERN_INFO "IBM MCA SCSI: Dev. Order: %s, Mapping (takes <2min): ", (ibm_ansi_order) ? "ANSI" : "New");
-#endif
- for (ldn = 0; ldn < MAX_LOG_DEV; ldn++) {
- probe_display(1);
-#ifdef IM_DEBUG_PROBE
- printk(".");
-#endif
- immediate_assign(shpnt, 0, 0, ldn, REMOVE_LDN); /* remove ldn (wherever) */
- }
- lun = 0; /* default lun is 0 */
-#ifndef IM_DEBUG_PROBE
- printk("cleared,");
-#endif
- /* STEP 2: */
-#ifdef IM_DEBUG_PROBE
- printk("\nIBM MCA SCSI: Scanning SCSI-devices.");
-#endif
- for (id = 0; id < max_pun; id++)
-#ifdef CONFIG_SCSI_MULTI_LUN
- for (lun = 0; lun < 8; lun++)
-#endif
- {
- probe_display(1);
-#ifdef IM_DEBUG_PROBE
- printk(".");
-#endif
- if (id != subsystem_pun(shpnt)) {
- /* if pun is not the adapter: */
- /* set ldn=0 to pun,lun */
- immediate_assign(shpnt, id, lun, PROBE_LDN, SET_LDN);
- if (device_inquiry(shpnt, PROBE_LDN)) { /* probe device */
- get_scsi(shpnt)[id][lun] = (unsigned char) (ld(shpnt)[PROBE_LDN].buf[0]);
- /* entry, even for NO_LUN */
- if (ld(shpnt)[PROBE_LDN].buf[0] != TYPE_NO_LUN)
- count_devices++; /* a existing device is found */
- }
- /* remove ldn */
- immediate_assign(shpnt, id, lun, PROBE_LDN, REMOVE_LDN);
- }
- }
-#ifndef IM_DEBUG_PROBE
- printk("scanned,");
-#endif
- /* STEP 3: */
-#ifdef IM_DEBUG_PROBE
- printk("\nIBM MCA SCSI: Mapping SCSI-devices.");
-#endif
- ldn = 0;
- lun = 0;
-#ifdef CONFIG_SCSI_MULTI_LUN
- for (lun = 0; lun < 8 && ldn < MAX_LOG_DEV; lun++)
-#endif
- for (id = 0; id < max_pun && ldn < MAX_LOG_DEV; id++) {
- probe_display(1);
-#ifdef IM_DEBUG_PROBE
- printk(".");
-#endif
- if (id != subsystem_pun(shpnt)) {
- if (get_scsi(shpnt)[id][lun] != TYPE_NO_LUN && get_scsi(shpnt)[id][lun] != TYPE_NO_DEVICE) {
- /* Only map if accepted type. Always enter for
- lun == 0 to get no gaps into ldn-mapping for ldn<7. */
- immediate_assign(shpnt, id, lun, ldn, SET_LDN);
- get_ldn(shpnt)[id][lun] = ldn; /* map ldn */
- if (device_exists(shpnt, ldn, &ld(shpnt)[ldn].block_length, &ld(shpnt)[ldn].device_type)) {
-#ifdef CONFIG_IBMMCA_SCSI_DEV_RESET
- printk("resetting device at ldn=%x ... ", ldn);
- immediate_reset(shpnt, ldn);
-#endif
- ldn++;
- } else {
- /* device vanished, probably because we don't know how to
- * handle it or because it has problems */
- if (lun > 0) {
- /* remove mapping */
- get_ldn(shpnt)[id][lun] = TYPE_NO_DEVICE;
- immediate_assign(shpnt, 0, 0, ldn, REMOVE_LDN);
- } else
- ldn++;
- }
- } else if (lun == 0) {
- /* map lun == 0, even if no device exists */
- immediate_assign(shpnt, id, lun, ldn, SET_LDN);
- get_ldn(shpnt)[id][lun] = ldn; /* map ldn */
- ldn++;
- }
- }
- }
- /* STEP 4: */
-
- /* map remaining ldns to non-existing devices */
- for (lun = 1; lun < 8 && ldn < MAX_LOG_DEV; lun++)
- for (id = 0; id < max_pun && ldn < MAX_LOG_DEV; id++) {
- if (get_scsi(shpnt)[id][lun] == TYPE_NO_LUN || get_scsi(shpnt)[id][lun] == TYPE_NO_DEVICE) {
- probe_display(1);
- /* Map remaining ldns only to NON-existing pun,lun
- combinations to make sure an inquiry will fail.
- For MULTI_LUN, it is needed to avoid adapter autonome
- SCSI-remapping. */
- immediate_assign(shpnt, id, lun, ldn, SET_LDN);
- get_ldn(shpnt)[id][lun] = ldn;
- ldn++;
- }
- }
-#ifndef IM_DEBUG_PROBE
- printk("mapped.");
-#endif
- printk("\n");
-#ifdef IM_DEBUG_PROBE
- if (ibm_ansi_order)
- printk("IBM MCA SCSI: Device order: IBM/ANSI (pun=7 is first).\n");
- else
- printk("IBM MCA SCSI: Device order: New Industry Standard (pun=0 is first).\n");
-#endif
-
-#ifdef IM_DEBUG_PROBE
- /* Show the physical and logical mapping during boot. */
- printk("IBM MCA SCSI: Determined SCSI-device-mapping:\n");
- printk(" Physical SCSI-Device Map Logical SCSI-Device Map\n");
- printk("ID\\LUN 0 1 2 3 4 5 6 7 ID\\LUN 0 1 2 3 4 5 6 7\n");
- for (id = 0; id < max_pun; id++) {
- printk("%2d ", id);
- for (lun = 0; lun < 8; lun++)
- printk("%2s ", ti_p(get_scsi(shpnt)[id][lun]));
- printk(" %2d ", id);
- for (lun = 0; lun < 8; lun++)
- printk("%2s ", ti_l(get_ldn(shpnt)[id][lun]));
- printk("\n");
- }
-#endif
-
- /* assign total number of found SCSI-devices to the statistics struct */
- IBM_DS(shpnt).total_scsi_devices = count_devices;
-
- /* decide for output in /proc-filesystem, if the configuration of
- SCSI-devices makes dynamical reassignment of devices necessary */
- if (count_devices >= MAX_LOG_DEV)
- IBM_DS(shpnt).dyn_flag = 1; /* dynamical assignment is necessary */
- else
- IBM_DS(shpnt).dyn_flag = 0; /* dynamical assignment is not necessary */
-
- /* If no SCSI-devices are assigned, return 1 in order to cause message. */
- if (ldn == 0)
- printk("IBM MCA SCSI: Warning: No SCSI-devices found/assigned!\n");
-
- /* reset the counters for statistics on the current adapter */
- IBM_DS(shpnt).scbs = 0;
- IBM_DS(shpnt).long_scbs = 0;
- IBM_DS(shpnt).total_accesses = 0;
- IBM_DS(shpnt).total_interrupts = 0;
- IBM_DS(shpnt).dynamical_assignments = 0;
- memset(IBM_DS(shpnt).ldn_access, 0x0, sizeof(IBM_DS(shpnt).ldn_access));
- memset(IBM_DS(shpnt).ldn_read_access, 0x0, sizeof(IBM_DS(shpnt).ldn_read_access));
- memset(IBM_DS(shpnt).ldn_write_access, 0x0, sizeof(IBM_DS(shpnt).ldn_write_access));
- memset(IBM_DS(shpnt).ldn_inquiry_access, 0x0, sizeof(IBM_DS(shpnt).ldn_inquiry_access));
- memset(IBM_DS(shpnt).ldn_modeselect_access, 0x0, sizeof(IBM_DS(shpnt).ldn_modeselect_access));
- memset(IBM_DS(shpnt).ldn_assignments, 0x0, sizeof(IBM_DS(shpnt).ldn_assignments));
- probe_display(0);
- return;
-}
-
-static int device_exists(struct Scsi_Host *shpnt, int ldn, int *block_length, int *device_type)
-{
- unsigned char *buf;
- /* if no valid device found, return immediately with 0 */
- if (!(device_inquiry(shpnt, ldn)))
- return 0;
- buf = (unsigned char *) (&(ld(shpnt)[ldn].buf));
- if (*buf == TYPE_ROM) {
- *device_type = TYPE_ROM;
- *block_length = 2048; /* (standard blocksize for yellow-/red-book) */
- return 1;
- }
- if (*buf == TYPE_WORM) {
- *device_type = TYPE_WORM;
- *block_length = 2048;
- return 1;
- }
- if (*buf == TYPE_DISK) {
- *device_type = TYPE_DISK;
- if (read_capacity(shpnt, ldn)) {
- *block_length = *(buf + 7) + (*(buf + 6) << 8) + (*(buf + 5) << 16) + (*(buf + 4) << 24);
- return 1;
- } else
- return 0;
- }
- if (*buf == TYPE_MOD) {
- *device_type = TYPE_MOD;
- if (read_capacity(shpnt, ldn)) {
- *block_length = *(buf + 7) + (*(buf + 6) << 8) + (*(buf + 5) << 16) + (*(buf + 4) << 24);
- return 1;
- } else
- return 0;
- }
- if (*buf == TYPE_TAPE) {
- *device_type = TYPE_TAPE;
- *block_length = 0; /* not in use (setting by mt and mtst in op.) */
- return 1;
- }
- if (*buf == TYPE_PROCESSOR) {
- *device_type = TYPE_PROCESSOR;
- *block_length = 0; /* they set their stuff on drivers */
- return 1;
- }
- if (*buf == TYPE_SCANNER) {
- *device_type = TYPE_SCANNER;
- *block_length = 0; /* they set their stuff on drivers */
- return 1;
- }
- if (*buf == TYPE_MEDIUM_CHANGER) {
- *device_type = TYPE_MEDIUM_CHANGER;
- *block_length = 0; /* One never knows, what to expect on a medium
- changer device. */
- return 1;
- }
- return 0;
-}
-
-static void internal_ibmmca_scsi_setup(char *str, int *ints)
-{
- int i, j, io_base, id_base;
- char *token;
-
- io_base = 0;
- id_base = 0;
- if (str) {
- j = 0;
- while ((token = strsep(&str, ",")) != NULL) {
- if (!strcmp(token, "activity"))
- display_mode |= LED_ACTIVITY;
- if (!strcmp(token, "display"))
- display_mode |= LED_DISP;
- if (!strcmp(token, "adisplay"))
- display_mode |= LED_ADISP;
- if (!strcmp(token, "normal"))
- ibm_ansi_order = 0;
- if (!strcmp(token, "ansi"))
- ibm_ansi_order = 1;
- if (!strcmp(token, "fast"))
- global_adapter_speed = 0;
- if (!strcmp(token, "medium"))
- global_adapter_speed = 4;
- if (!strcmp(token, "slow"))
- global_adapter_speed = 7;
- if ((*token == '-') || (isdigit(*token))) {
- if (!(j % 2) && (io_base < IM_MAX_HOSTS))
- io_port[io_base++] = simple_strtoul(token, NULL, 0);
- if ((j % 2) && (id_base < IM_MAX_HOSTS))
- scsi_id[id_base++] = simple_strtoul(token, NULL, 0);
- j++;
- }
- }
- } else if (ints) {
- for (i = 0; i < IM_MAX_HOSTS && 2 * i + 2 < ints[0]; i++) {
- io_port[i] = ints[2 * i + 2];
- scsi_id[i] = ints[2 * i + 2];
- }
- }
- return;
-}
-
-#if 0
- FIXME NEED TO MOVE TO SYSFS
-
-static int ibmmca_getinfo(char *buf, int slot, void *dev_id)
-{
- struct Scsi_Host *shpnt;
- int len, speciale, connectore, k;
- unsigned int pos[8];
- unsigned long flags;
- struct Scsi_Host *dev = dev_id;
-
- spin_lock_irqsave(dev->host_lock, flags);
-
- shpnt = dev; /* assign host-structure to local pointer */
- len = 0; /* set filled text-buffer index to 0 */
- /* get the _special contents of the hostdata structure */
- speciale = ((struct ibmmca_hostdata *) shpnt->hostdata)->_special;
- connectore = ((struct ibmmca_hostdata *) shpnt->hostdata)->_connector_size;
- for (k = 2; k < 4; k++)
- pos[k] = ((struct ibmmca_hostdata *) shpnt->hostdata)->_pos[k];
- if (speciale == FORCED_DETECTION) { /* forced detection */
- len += sprintf(buf + len,
- "Adapter category: forced detected\n" "***************************************\n" "*** Forced detected SCSI Adapter ***\n" "*** No chip-information available ***\n" "***************************************\n");
- } else if (speciale == INTEGRATED_SCSI) {
- /* if the integrated subsystem has been found automatically: */
- len += sprintf(buf + len,
- "Adapter category: integrated\n" "Chip revision level: %d\n" "Chip status: %s\n" "8 kByte NVRAM status: %s\n", ((pos[2] & 0xf0) >> 4), (pos[2] & 1) ? "enabled" : "disabled", (pos[2] & 2) ? "locked" : "accessible");
- } else if ((speciale >= 0) && (speciale < ARRAY_SIZE(subsys_list))) {
- /* if the subsystem is a slot adapter */
- len += sprintf(buf + len, "Adapter category: slot-card\n" "ROM Segment Address: ");
- if ((pos[2] & 0xf0) == 0xf0)
- len += sprintf(buf + len, "off\n");
- else
- len += sprintf(buf + len, "0x%x\n", ((pos[2] & 0xf0) << 13) + 0xc0000);
- len += sprintf(buf + len, "Chip status: %s\n", (pos[2] & 1) ? "enabled" : "disabled");
- len += sprintf(buf + len, "Adapter I/O Offset: 0x%x\n", ((pos[2] & 0x0e) << 2));
- } else {
- len += sprintf(buf + len, "Adapter category: unknown\n");
- }
- /* common subsystem information to write to the slotn file */
- len += sprintf(buf + len, "Subsystem PUN: %d\n", shpnt->this_id);
- len += sprintf(buf + len, "I/O base address range: 0x%x-0x%x\n", (unsigned int) (shpnt->io_port), (unsigned int) (shpnt->io_port + 7));
- len += sprintf(buf + len, "MCA-slot size: %d bits", connectore);
- /* Now make sure, the bufferlength is devidable by 4 to avoid
- * paging problems of the buffer. */
- while (len % sizeof(int) != (sizeof(int) - 1))
- len += sprintf(buf + len, " ");
- len += sprintf(buf + len, "\n");
-
- spin_unlock_irqrestore(shpnt->host_lock, flags);
-
- return len;
-}
-#endif
-
-static struct scsi_host_template ibmmca_driver_template = {
- .proc_name = "ibmmca",
- .proc_info = ibmmca_proc_info,
- .name = "IBM SCSI-Subsystem",
- .queuecommand = ibmmca_queuecommand,
- .eh_abort_handler = ibmmca_abort,
- .eh_host_reset_handler = ibmmca_host_reset,
- .bios_param = ibmmca_biosparam,
- .can_queue = 16,
- .this_id = 7,
- .sg_tablesize = 16,
- .cmd_per_lun = 1,
- .use_clustering = ENABLE_CLUSTERING,
-};
-
-static int ibmmca_probe(struct device *dev)
-{
- struct Scsi_Host *shpnt;
- int port, id, i, j, k, irq, enabled, ret = -EINVAL;
- struct mca_device *mca_dev = to_mca_device(dev);
- const char *description = ibmmca_description[mca_dev->index];
-
- /* First of all, print the version number of the driver. This is
- * important to allow better user bugreports in case of already
- * having problems with the MCA_bus probing. */
- printk(KERN_INFO "IBM MCA SCSI: Version %s\n", IBMMCA_SCSI_DRIVER_VERSION);
- /* The POS2-register of all PS/2 model SCSI-subsystems has the following
- * interpretation of bits:
- * Bit 7 - 4 : Chip Revision ID (Release)
- * Bit 3 - 2 : Reserved
- * Bit 1 : 8k NVRAM Disabled
- * Bit 0 : Chip Enable (EN-Signal)
- * The POS3-register is interpreted as follows:
- * Bit 7 - 5 : SCSI ID
- * Bit 4 : Reserved = 0
- * Bit 3 - 0 : Reserved = 0
- * (taken from "IBM, PS/2 Hardware Interface Technical Reference, Common
- * Interfaces (1991)").
- * In short words, this means, that IBM PS/2 machines only support
- * 1 single subsystem by default. The slot-adapters must have another
- * configuration on pos2. Here, one has to assume the following
- * things for POS2-register:
- * Bit 7 - 4 : Chip Revision ID (Release)
- * Bit 3 - 1 : port offset factor
- * Bit 0 : Chip Enable (EN-Signal)
- * As I found a patch here, setting the IO-registers to 0x3540 forced,
- * as there was a 0x05 in POS2 on a model 56, I assume, that the
- * port 0x3540 must be fix for integrated SCSI-controllers.
- * Ok, this discovery leads to the following implementation: (M.Lang) */
-
- /* first look for the IBM SCSI integrated subsystem on the motherboard */
- for (j = 0; j < 8; j++) /* read the pos-information */
- pos[j] = mca_device_read_pos(mca_dev, j);
- id = (pos[3] & 0xe0) >> 5; /* this is correct and represents the PUN */
- enabled = (pos[2] &0x01);
- if (!enabled) {
- printk(KERN_WARNING "IBM MCA SCSI: WARNING - Your SCSI-subsystem is disabled!\n");
- printk(KERN_WARNING " SCSI-operations may not work.\n");
- }
-
- /* pos2 = pos3 = 0xff if there is no integrated SCSI-subsystem present, but
- * if we ignore the settings of all surrounding pos registers, it is not
- * completely sufficient to only check pos2 and pos3. */
- /* Therefore, now the following if statement is used to
- * make sure, we see a real integrated onboard SCSI-interface and no
- * internal system information, which gets mapped to some pos registers
- * on models 95xx. */
- if (mca_dev->slot == MCA_INTEGSCSI &&
- ((!pos[0] && !pos[1] && pos[2] > 0 &&
- pos[3] > 0 && !pos[4] && !pos[5] &&
- !pos[6] && !pos[7]) ||
- (pos[0] == 0xff && pos[1] == 0xff &&
- pos[2] < 0xff && pos[3] < 0xff &&
- pos[4] == 0xff && pos[5] == 0xff &&
- pos[6] == 0xff && pos[7] == 0xff))) {
- irq = IM_IRQ;
- port = IM_IO_PORT;
- } else {
- irq = IM_IRQ;
- port = IM_IO_PORT + ((pos[2] &0x0e) << 2);
- if ((mca_dev->index == IBM_SCSI2_FW) && (pos[6] != 0)) {
- printk(KERN_ERR "IBM MCA SCSI: ERROR - Wrong POS(6)-register setting!\n");
- printk(KERN_ERR " Impossible to determine adapter PUN!\n");
- printk(KERN_ERR " Guessing adapter PUN = 7.\n");
- id = 7;
- } else {
- id = (pos[3] & 0xe0) >> 5; /* get subsystem PUN */
- if (mca_dev->index == IBM_SCSI2_FW) {
- id |= (pos[3] & 0x10) >> 1; /* get subsystem PUN high-bit
- * for F/W adapters */
- }
- }
- if ((mca_dev->index == IBM_SCSI2_FW) &&
- (pos[4] & 0x01) && (pos[6] == 0)) {
- /* IRQ11 is used by SCSI-2 F/W Adapter/A */
- printk(KERN_DEBUG "IBM MCA SCSI: SCSI-2 F/W adapter needs IRQ 11.\n");
- irq = IM_IRQ_FW;
- }
- }
-
-
-
- /* give detailed information on the subsystem. This helps me
- * additionally during debugging and analyzing bug-reports. */
- printk(KERN_INFO "IBM MCA SCSI: %s found, io=0x%x, scsi id=%d,\n",
- description, port, id);
- if (mca_dev->slot == MCA_INTEGSCSI)
- printk(KERN_INFO " chip rev.=%d, 8K NVRAM=%s, subsystem=%s\n", ((pos[2] & 0xf0) >> 4), (pos[2] & 2) ? "locked" : "accessible", (pos[2] & 1) ? "enabled." : "disabled.");
- else {
- if ((pos[2] & 0xf0) == 0xf0)
- printk(KERN_DEBUG " ROM Addr.=off,");
- else
- printk(KERN_DEBUG " ROM Addr.=0x%x,", ((pos[2] & 0xf0) << 13) + 0xc0000);
-
- printk(KERN_DEBUG " port-offset=0x%x, subsystem=%s\n", ((pos[2] & 0x0e) << 2), (pos[2] & 1) ? "enabled." : "disabled.");
- }
-
- /* check I/O region */
- if (!request_region(port, IM_N_IO_PORT, description)) {
- printk(KERN_ERR "IBM MCA SCSI: Unable to get I/O region 0x%x-0x%x (%d ports).\n", port, port + IM_N_IO_PORT - 1, IM_N_IO_PORT);
- goto out_fail;
- }
-
- /* register host */
- shpnt = scsi_host_alloc(&ibmmca_driver_template,
- sizeof(struct ibmmca_hostdata));
- if (!shpnt) {
- printk(KERN_ERR "IBM MCA SCSI: Unable to register host.\n");
- goto out_release;
- }
-
- dev_set_drvdata(dev, shpnt);
- if(request_irq(irq, interrupt_handler, IRQF_SHARED, description, dev)) {
- printk(KERN_ERR "IBM MCA SCSI: failed to request interrupt %d\n", irq);
- goto out_free_host;
- }
-
- /* request I/O region */
- special(shpnt) = mca_dev->index; /* important assignment or else crash! */
- subsystem_connector_size(shpnt) = 0; /* preset slot-size */
- shpnt->irq = irq; /* assign necessary stuff for the adapter */
- shpnt->io_port = port;
- shpnt->n_io_port = IM_N_IO_PORT;
- shpnt->this_id = id;
- shpnt->max_id = 8; /* 8 PUNs are default */
- /* now, the SCSI-subsystem is connected to Linux */
-
-#ifdef IM_DEBUG_PROBE
- ctrl = (unsigned int) (inb(IM_CTR_REG(found))); /* get control-register status */
- printk("IBM MCA SCSI: Control Register contents: %x, status: %x\n", ctrl, inb(IM_STAT_REG(found)));
- printk("IBM MCA SCSI: This adapters' POS-registers: ");
- for (i = 0; i < 8; i++)
- printk("%x ", pos[i]);
- printk("\n");
-#endif
- reset_status(shpnt) = IM_RESET_NOT_IN_PROGRESS;
-
- for (i = 0; i < 16; i++) /* reset the tables */
- for (j = 0; j < 8; j++)
- get_ldn(shpnt)[i][j] = MAX_LOG_DEV;
-
- /* check which logical devices exist */
- /* after this line, local interrupting is possible: */
- local_checking_phase_flag(shpnt) = 1;
- check_devices(shpnt, mca_dev->index); /* call by value, using the global variable hosts */
- local_checking_phase_flag(shpnt) = 0;
-
- /* an ibm mca subsystem has been detected */
-
- for (k = 2; k < 7; k++)
- ((struct ibmmca_hostdata *) shpnt->hostdata)->_pos[k] = pos[k];
- ((struct ibmmca_hostdata *) shpnt->hostdata)->_special = INTEGRATED_SCSI;
- mca_device_set_name(mca_dev, description);
- /* FIXME: NEED TO REPLUMB TO SYSFS
- mca_set_adapter_procfn(MCA_INTEGSCSI, (MCA_ProcFn) ibmmca_getinfo, shpnt);
- */
- mca_device_set_claim(mca_dev, 1);
- if (scsi_add_host(shpnt, dev)) {
- dev_printk(KERN_ERR, dev, "IBM MCA SCSI: scsi_add_host failed\n");
- goto out_free_host;
- }
- scsi_scan_host(shpnt);
-
- return 0;
- out_free_host:
- scsi_host_put(shpnt);
- out_release:
- release_region(port, IM_N_IO_PORT);
- out_fail:
- return ret;
-}
-
-static int __devexit ibmmca_remove(struct device *dev)
-{
- struct Scsi_Host *shpnt = dev_get_drvdata(dev);
- scsi_remove_host(shpnt);
- release_region(shpnt->io_port, shpnt->n_io_port);
- free_irq(shpnt->irq, dev);
- scsi_host_put(shpnt);
- return 0;
-}
-
-/* The following routine is the SCSI command queue for the midlevel driver */
-static int ibmmca_queuecommand_lck(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *))
-{
- unsigned int ldn;
- unsigned int scsi_cmd;
- struct im_scb *scb;
- struct Scsi_Host *shpnt;
- int current_ldn;
- int id, lun;
- int target;
- int max_pun;
- int i;
- struct scatterlist *sg;
-
- shpnt = cmd->device->host;
-
- max_pun = subsystem_maxid(shpnt);
- if (ibm_ansi_order) {
- target = max_pun - 1 - cmd->device->id;
- if ((target <= subsystem_pun(shpnt)) && (cmd->device->id <= subsystem_pun(shpnt)))
- target--;
- else if ((target >= subsystem_pun(shpnt)) && (cmd->device->id >= subsystem_pun(shpnt)))
- target++;
- } else
- target = cmd->device->id;
-
- /* if (target,lun) is NO LUN or not existing at all, return error */
- if ((get_scsi(shpnt)[target][cmd->device->lun] == TYPE_NO_LUN) || (get_scsi(shpnt)[target][cmd->device->lun] == TYPE_NO_DEVICE)) {
- cmd->result = DID_NO_CONNECT << 16;
- if (done)
- done(cmd);
- return 0;
- }
-
- /*if (target,lun) unassigned, do further checks... */
- ldn = get_ldn(shpnt)[target][cmd->device->lun];
- if (ldn >= MAX_LOG_DEV) { /* on invalid ldn do special stuff */
- if (ldn > MAX_LOG_DEV) { /* dynamical remapping if ldn unassigned */
- current_ldn = next_ldn(shpnt); /* stop-value for one circle */
- while (ld(shpnt)[next_ldn(shpnt)].cmd) { /* search for a occupied, but not in */
- /* command-processing ldn. */
- next_ldn(shpnt)++;
- if (next_ldn(shpnt) >= MAX_LOG_DEV)
- next_ldn(shpnt) = 7;
- if (current_ldn == next_ldn(shpnt)) { /* One circle done ? */
- /* no non-processing ldn found */
- scmd_printk(KERN_WARNING, cmd,
- "IBM MCA SCSI: Cannot assign SCSI-device dynamically!\n"
- " On ldn 7-14 SCSI-commands everywhere in progress.\n"
- " Reporting DID_NO_CONNECT for device.\n");
- cmd->result = DID_NO_CONNECT << 16; /* return no connect */
- if (done)
- done(cmd);
- return 0;
- }
- }
-
- /* unmap non-processing ldn */
- for (id = 0; id < max_pun; id++)
- for (lun = 0; lun < 8; lun++) {
- if (get_ldn(shpnt)[id][lun] == next_ldn(shpnt)) {
- get_ldn(shpnt)[id][lun] = TYPE_NO_DEVICE;
- get_scsi(shpnt)[id][lun] = TYPE_NO_DEVICE;
- /* unmap entry */
- }
- }
- /* set reduced interrupt_handler-mode for checking */
- local_checking_phase_flag(shpnt) = 1;
- /* map found ldn to pun,lun */
- get_ldn(shpnt)[target][cmd->device->lun] = next_ldn(shpnt);
- /* change ldn to the right value, that is now next_ldn */
- ldn = next_ldn(shpnt);
- /* unassign all ldns (pun,lun,ldn does not matter for remove) */
- immediate_assign(shpnt, 0, 0, 0, REMOVE_LDN);
- /* set only LDN for remapped device */
- immediate_assign(shpnt, target, cmd->device->lun, ldn, SET_LDN);
- /* get device information for ld[ldn] */
- if (device_exists(shpnt, ldn, &ld(shpnt)[ldn].block_length, &ld(shpnt)[ldn].device_type)) {
- ld(shpnt)[ldn].cmd = NULL; /* To prevent panic set 0, because
- devices that were not assigned,
- should have nothing in progress. */
- get_scsi(shpnt)[target][cmd->device->lun] = ld(shpnt)[ldn].device_type;
- /* increase assignment counters for statistics in /proc */
- IBM_DS(shpnt).dynamical_assignments++;
- IBM_DS(shpnt).ldn_assignments[ldn]++;
- } else
- /* panic here, because a device, found at boottime has
- vanished */
- panic("IBM MCA SCSI: ldn=0x%x, SCSI-device on (%d,%d) vanished!\n", ldn, target, cmd->device->lun);
- /* unassign again all ldns (pun,lun,ldn does not matter for remove) */
- immediate_assign(shpnt, 0, 0, 0, REMOVE_LDN);
- /* remap all ldns, as written in the pun/lun table */
- lun = 0;
-#ifdef CONFIG_SCSI_MULTI_LUN
- for (lun = 0; lun < 8; lun++)
-#endif
- for (id = 0; id < max_pun; id++) {
- if (get_ldn(shpnt)[id][lun] <= MAX_LOG_DEV)
- immediate_assign(shpnt, id, lun, get_ldn(shpnt)[id][lun], SET_LDN);
- }
- /* set back to normal interrupt_handling */
- local_checking_phase_flag(shpnt) = 0;
-#ifdef IM_DEBUG_PROBE
- /* Information on syslog terminal */
- printk("IBM MCA SCSI: ldn=0x%x dynamically reassigned to (%d,%d).\n", ldn, target, cmd->device->lun);
-#endif
- /* increase next_ldn for next dynamical assignment */
- next_ldn(shpnt)++;
- if (next_ldn(shpnt) >= MAX_LOG_DEV)
- next_ldn(shpnt) = 7;
- } else { /* wall against Linux accesses to the subsystem adapter */
- cmd->result = DID_BAD_TARGET << 16;
- if (done)
- done(cmd);
- return 0;
- }
- }
-
- /*verify there is no command already in progress for this log dev */
- if (ld(shpnt)[ldn].cmd)
- panic("IBM MCA SCSI: cmd already in progress for this ldn.\n");
-
- /*save done in cmd, and save cmd for the interrupt handler */
- cmd->scsi_done = done;
- ld(shpnt)[ldn].cmd = cmd;
-
- /*fill scb information independent of the scsi command */
- scb = &(ld(shpnt)[ldn].scb);
- ld(shpnt)[ldn].tsb.dev_status = 0;
- scb->enable = IM_REPORT_TSB_ONLY_ON_ERROR | IM_RETRY_ENABLE;
- scb->tsb_adr = isa_virt_to_bus(&(ld(shpnt)[ldn].tsb));
- scsi_cmd = cmd->cmnd[0];
-
- if (scsi_sg_count(cmd)) {
- BUG_ON(scsi_sg_count(cmd) > 16);
-
- scsi_for_each_sg(cmd, sg, scsi_sg_count(cmd), i) {
- ld(shpnt)[ldn].sge[i].address = (void *) (isa_page_to_bus(sg_page(sg)) + sg->offset);
- ld(shpnt)[ldn].sge[i].byte_length = sg->length;
- }
- scb->enable |= IM_POINTER_TO_LIST;
- scb->sys_buf_adr = isa_virt_to_bus(&(ld(shpnt)[ldn].sge[0]));
- scb->sys_buf_length = scsi_sg_count(cmd) * sizeof(struct im_sge);
- } else {
- scb->sys_buf_adr = isa_virt_to_bus(scsi_sglist(cmd));
- /* recent Linux midlevel SCSI places 1024 byte for inquiry
- * command. Far too much for old PS/2 hardware. */
- switch (scsi_cmd) {
- /* avoid command errors by setting bufferlengths to
- * ANSI-standard. Beware of forcing it to 255,
- * this could SEGV the kernel!!! */
- case INQUIRY:
- case REQUEST_SENSE:
- case MODE_SENSE:
- case MODE_SELECT:
- if (scsi_bufflen(cmd) > 255)
- scb->sys_buf_length = 255;
- else
- scb->sys_buf_length = scsi_bufflen(cmd);
- break;
- case TEST_UNIT_READY:
- scb->sys_buf_length = 0;
- break;
- default:
- scb->sys_buf_length = scsi_bufflen(cmd);
- break;
- }
- }
- /*fill scb information dependent on scsi command */
-
-#ifdef IM_DEBUG_CMD
- printk("issue scsi cmd=%02x to ldn=%d\n", scsi_cmd, ldn);
-#endif
-
- /* for specific device-type debugging: */
-#ifdef IM_DEBUG_CMD_SPEC_DEV
- if (ld(shpnt)[ldn].device_type == IM_DEBUG_CMD_DEVICE)
- printk("(SCSI-device-type=0x%x) issue scsi cmd=%02x to ldn=%d\n", ld(shpnt)[ldn].device_type, scsi_cmd, ldn);
-#endif
-
- /* for possible panics store current command */
- last_scsi_command(shpnt)[ldn] = scsi_cmd;
- last_scsi_type(shpnt)[ldn] = IM_SCB;
- /* update statistical info */
- IBM_DS(shpnt).total_accesses++;
- IBM_DS(shpnt).ldn_access[ldn]++;
-
- switch (scsi_cmd) {
- case READ_6:
- case WRITE_6:
- case READ_10:
- case WRITE_10:
- case READ_12:
- case WRITE_12:
- /* Distinguish between disk and other devices. Only disks (that are the
- most frequently accessed devices) should be supported by the
- IBM-SCSI-Subsystem commands. */
- switch (ld(shpnt)[ldn].device_type) {
- case TYPE_DISK: /* for harddisks enter here ... */
- case TYPE_MOD: /* ... try it also for MO-drives (send flames as */
- /* you like, if this won't work.) */
- if (scsi_cmd == READ_6 || scsi_cmd == READ_10 || scsi_cmd == READ_12) {
- /* read command preparations */
- scb->enable |= IM_READ_CONTROL;
- IBM_DS(shpnt).ldn_read_access[ldn]++; /* increase READ-access on ldn stat. */
- scb->command = IM_READ_DATA_CMD | IM_NO_DISCONNECT;
- } else { /* write command preparations */
- IBM_DS(shpnt).ldn_write_access[ldn]++; /* increase write-count on ldn stat. */
- scb->command = IM_WRITE_DATA_CMD | IM_NO_DISCONNECT;
- }
- if (scsi_cmd == READ_6 || scsi_cmd == WRITE_6) {
- scb->u1.log_blk_adr = (((unsigned) cmd->cmnd[3]) << 0) | (((unsigned) cmd->cmnd[2]) << 8) | ((((unsigned) cmd->cmnd[1]) & 0x1f) << 16);
- scb->u2.blk.count = (unsigned) cmd->cmnd[4];
- } else {
- scb->u1.log_blk_adr = (((unsigned) cmd->cmnd[5]) << 0) | (((unsigned) cmd->cmnd[4]) << 8) | (((unsigned) cmd->cmnd[3]) << 16) | (((unsigned) cmd->cmnd[2]) << 24);
- scb->u2.blk.count = (((unsigned) cmd->cmnd[8]) << 0) | (((unsigned) cmd->cmnd[7]) << 8);
- }
- last_scsi_logical_block(shpnt)[ldn] = scb->u1.log_blk_adr;
- last_scsi_blockcount(shpnt)[ldn] = scb->u2.blk.count;
- scb->u2.blk.length = ld(shpnt)[ldn].block_length;
- break;
- /* for other devices, enter here. Other types are not known by
- Linux! TYPE_NO_LUN is forbidden as valid device. */
- case TYPE_ROM:
- case TYPE_TAPE:
- case TYPE_PROCESSOR:
- case TYPE_WORM:
- case TYPE_SCANNER:
- case TYPE_MEDIUM_CHANGER:
- /* If there is a sequential-device, IBM recommends to use
- IM_OTHER_SCSI_CMD_CMD instead of subsystem READ/WRITE.
- This includes CD-ROM devices, too, due to the partial sequential
- read capabilities. */
- scb->command = IM_OTHER_SCSI_CMD_CMD;
- if (scsi_cmd == READ_6 || scsi_cmd == READ_10 || scsi_cmd == READ_12)
- /* enable READ */
- scb->enable |= IM_READ_CONTROL;
- scb->enable |= IM_BYPASS_BUFFER;
- scb->u1.scsi_cmd_length = cmd->cmd_len;
- memcpy(scb->u2.scsi_command, cmd->cmnd, cmd->cmd_len);
- last_scsi_type(shpnt)[ldn] = IM_LONG_SCB;
- /* Read/write on this non-disk devices is also displayworthy,
- so flash-up the LED/display. */
- break;
- }
- break;
- case INQUIRY:
- IBM_DS(shpnt).ldn_inquiry_access[ldn]++;
- scb->command = IM_DEVICE_INQUIRY_CMD;
- scb->enable |= IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER;
- scb->u1.log_blk_adr = 0;
- break;
- case TEST_UNIT_READY:
- scb->command = IM_OTHER_SCSI_CMD_CMD;
- scb->enable |= IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER;
- scb->u1.log_blk_adr = 0;
- scb->u1.scsi_cmd_length = 6;
- memcpy(scb->u2.scsi_command, cmd->cmnd, 6);
- last_scsi_type(shpnt)[ldn] = IM_LONG_SCB;
- break;
- case READ_CAPACITY:
- /* the length of system memory buffer must be exactly 8 bytes */
- scb->command = IM_READ_CAPACITY_CMD;
- scb->enable |= IM_READ_CONTROL | IM_BYPASS_BUFFER;
- if (scb->sys_buf_length > 8)
- scb->sys_buf_length = 8;
- break;
- /* Commands that need read-only-mode (system <- device): */
- case REQUEST_SENSE:
- scb->command = IM_REQUEST_SENSE_CMD;
- scb->enable |= IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER;
- break;
- /* Commands that need write-only-mode (system -> device): */
- case MODE_SELECT:
- case MODE_SELECT_10:
- IBM_DS(shpnt).ldn_modeselect_access[ldn]++;
- scb->command = IM_OTHER_SCSI_CMD_CMD;
- scb->enable |= IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER; /*Select needs WRITE-enabled */
- scb->u1.scsi_cmd_length = cmd->cmd_len;
- memcpy(scb->u2.scsi_command, cmd->cmnd, cmd->cmd_len);
- last_scsi_type(shpnt)[ldn] = IM_LONG_SCB;
- break;
- /* For other commands, read-only is useful. Most other commands are
- running without an input-data-block. */
- default:
- scb->command = IM_OTHER_SCSI_CMD_CMD;
- scb->enable |= IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER;
- scb->u1.scsi_cmd_length = cmd->cmd_len;
- memcpy(scb->u2.scsi_command, cmd->cmnd, cmd->cmd_len);
- last_scsi_type(shpnt)[ldn] = IM_LONG_SCB;
- break;
- }
- /*issue scb command, and return */
- if (++disk_rw_in_progress == 1)
- PS2_DISK_LED_ON(shpnt->host_no, target);
-
- if (last_scsi_type(shpnt)[ldn] == IM_LONG_SCB) {
- issue_cmd(shpnt, isa_virt_to_bus(scb), IM_LONG_SCB | ldn);
- IBM_DS(shpnt).long_scbs++;
- } else {
- issue_cmd(shpnt, isa_virt_to_bus(scb), IM_SCB | ldn);
- IBM_DS(shpnt).scbs++;
- }
- return 0;
-}
-
-static DEF_SCSI_QCMD(ibmmca_queuecommand)
-
-static int __ibmmca_abort(Scsi_Cmnd * cmd)
-{
- /* Abort does not work, as the adapter never generates an interrupt on
- * whatever situation is simulated, even when really pending commands
- * are running on the adapters' hardware ! */
-
- struct Scsi_Host *shpnt;
- unsigned int ldn;
- void (*saved_done) (Scsi_Cmnd *);
- int target;
- int max_pun;
- unsigned long imm_command;
-
-#ifdef IM_DEBUG_PROBE
- printk("IBM MCA SCSI: Abort subroutine called...\n");
-#endif
-
- shpnt = cmd->device->host;
-
- max_pun = subsystem_maxid(shpnt);
- if (ibm_ansi_order) {
- target = max_pun - 1 - cmd->device->id;
- if ((target <= subsystem_pun(shpnt)) && (cmd->device->id <= subsystem_pun(shpnt)))
- target--;
- else if ((target >= subsystem_pun(shpnt)) && (cmd->device->id >= subsystem_pun(shpnt)))
- target++;
- } else
- target = cmd->device->id;
-
- /* get logical device number, and disable system interrupts */
- printk(KERN_WARNING "IBM MCA SCSI: Sending abort to device pun=%d, lun=%d.\n", target, cmd->device->lun);
- ldn = get_ldn(shpnt)[target][cmd->device->lun];
-
- /*if cmd for this ldn has already finished, no need to abort */
- if (!ld(shpnt)[ldn].cmd) {
- return SUCCESS;
- }
-
- /* Clear ld.cmd, save done function, install internal done,
- * send abort immediate command (this enables sys. interrupts),
- * and wait until the interrupt arrives.
- */
- saved_done = cmd->scsi_done;
- cmd->scsi_done = internal_done;
- cmd->SCp.Status = 0;
- last_scsi_command(shpnt)[ldn] = IM_ABORT_IMM_CMD;
- last_scsi_type(shpnt)[ldn] = IM_IMM_CMD;
- imm_command = inl(IM_CMD_REG(shpnt));
- imm_command &= (unsigned long) (0xffff0000); /* mask reserved stuff */
- imm_command |= (unsigned long) (IM_ABORT_IMM_CMD);
- /* must wait for attention reg not busy */
- /* FIXME - timeout, politeness */
- while (1) {
- if (!(inb(IM_STAT_REG(shpnt)) & IM_BUSY))
- break;
- }
- /* write registers and enable system interrupts */
- outl(imm_command, IM_CMD_REG(shpnt));
- outb(IM_IMM_CMD | ldn, IM_ATTN_REG(shpnt));
-#ifdef IM_DEBUG_PROBE
- printk("IBM MCA SCSI: Abort queued to adapter...\n");
-#endif
- spin_unlock_irq(shpnt->host_lock);
- while (!cmd->SCp.Status)
- yield();
- spin_lock_irq(shpnt->host_lock);
- cmd->scsi_done = saved_done;
-#ifdef IM_DEBUG_PROBE
- printk("IBM MCA SCSI: Abort returned with adapter response...\n");
-#endif
-
- /*if abort went well, call saved done, then return success or error */
- if (cmd->result == (DID_ABORT << 16))
- {
- cmd->result |= DID_ABORT << 16;
- if (cmd->scsi_done)
- (cmd->scsi_done) (cmd);
- ld(shpnt)[ldn].cmd = NULL;
-#ifdef IM_DEBUG_PROBE
- printk("IBM MCA SCSI: Abort finished with success.\n");
-#endif
- return SUCCESS;
- } else {
- cmd->result |= DID_NO_CONNECT << 16;
- if (cmd->scsi_done)
- (cmd->scsi_done) (cmd);
- ld(shpnt)[ldn].cmd = NULL;
-#ifdef IM_DEBUG_PROBE
- printk("IBM MCA SCSI: Abort failed.\n");
-#endif
- return FAILED;
- }
-}
-
-static int ibmmca_abort(Scsi_Cmnd * cmd)
-{
- struct Scsi_Host *shpnt = cmd->device->host;
- int rc;
-
- spin_lock_irq(shpnt->host_lock);
- rc = __ibmmca_abort(cmd);
- spin_unlock_irq(shpnt->host_lock);
-
- return rc;
-}
-
-static int __ibmmca_host_reset(Scsi_Cmnd * cmd)
-{
- struct Scsi_Host *shpnt;
- Scsi_Cmnd *cmd_aid;
- int ticks, i;
- unsigned long imm_command;
-
- BUG_ON(cmd == NULL);
-
- ticks = IM_RESET_DELAY * HZ;
- shpnt = cmd->device->host;
-
- if (local_checking_phase_flag(shpnt)) {
- printk(KERN_WARNING "IBM MCA SCSI: unable to reset while checking devices.\n");
- return FAILED;
- }
-
- /* issue reset immediate command to subsystem, and wait for interrupt */
- printk("IBM MCA SCSI: resetting all devices.\n");
- reset_status(shpnt) = IM_RESET_IN_PROGRESS;
- last_scsi_command(shpnt)[0xf] = IM_RESET_IMM_CMD;
- last_scsi_type(shpnt)[0xf] = IM_IMM_CMD;
- imm_command = inl(IM_CMD_REG(shpnt));
- imm_command &= (unsigned long) (0xffff0000); /* mask reserved stuff */
- imm_command |= (unsigned long) (IM_RESET_IMM_CMD);
- /* must wait for attention reg not busy */
- while (1) {
- if (!(inb(IM_STAT_REG(shpnt)) & IM_BUSY))
- break;
- spin_unlock_irq(shpnt->host_lock);
- yield();
- spin_lock_irq(shpnt->host_lock);
- }
- /*write registers and enable system interrupts */
- outl(imm_command, IM_CMD_REG(shpnt));
- outb(IM_IMM_CMD | 0xf, IM_ATTN_REG(shpnt));
- /* wait for interrupt finished or intr_stat register to be set, as the
- * interrupt will not be executed, while we are in here! */
-
- /* FIXME: This is really really icky we so want a sleeping version of this ! */
- while (reset_status(shpnt) == IM_RESET_IN_PROGRESS && --ticks && ((inb(IM_INTR_REG(shpnt)) & 0x8f) != 0x8f)) {
- udelay((1 + 999 / HZ) * 1000);
- barrier();
- }
- /* if reset did not complete, just return an error */
- if (!ticks) {
- printk(KERN_ERR "IBM MCA SCSI: reset did not complete within %d seconds.\n", IM_RESET_DELAY);
- reset_status(shpnt) = IM_RESET_FINISHED_FAIL;
- return FAILED;
- }
-
- if ((inb(IM_INTR_REG(shpnt)) & 0x8f) == 0x8f) {
- /* analysis done by this routine and not by the intr-routine */
- if (inb(IM_INTR_REG(shpnt)) == 0xaf)
- reset_status(shpnt) = IM_RESET_FINISHED_OK_NO_INT;
- else if (inb(IM_INTR_REG(shpnt)) == 0xcf)
- reset_status(shpnt) = IM_RESET_FINISHED_FAIL;
- else /* failed, 4get it */
- reset_status(shpnt) = IM_RESET_NOT_IN_PROGRESS_NO_INT;
- outb(IM_EOI | 0xf, IM_ATTN_REG(shpnt));
- }
-
- /* if reset failed, just return an error */
- if (reset_status(shpnt) == IM_RESET_FINISHED_FAIL) {
- printk(KERN_ERR "IBM MCA SCSI: reset failed.\n");
- return FAILED;
- }
-
- /* so reset finished ok - call outstanding done's, and return success */
- printk(KERN_INFO "IBM MCA SCSI: Reset successfully completed.\n");
- for (i = 0; i < MAX_LOG_DEV; i++) {
- cmd_aid = ld(shpnt)[i].cmd;
- if (cmd_aid && cmd_aid->scsi_done) {
- ld(shpnt)[i].cmd = NULL;
- cmd_aid->result = DID_RESET << 16;
- }
- }
- return SUCCESS;
-}
-
-static int ibmmca_host_reset(Scsi_Cmnd * cmd)
-{
- struct Scsi_Host *shpnt = cmd->device->host;
- int rc;
-
- spin_lock_irq(shpnt->host_lock);
- rc = __ibmmca_host_reset(cmd);
- spin_unlock_irq(shpnt->host_lock);
-
- return rc;
-}
-
-static int ibmmca_biosparam(struct scsi_device *sdev, struct block_device *bdev, sector_t capacity, int *info)
-{
- int size = capacity;
- info[0] = 64;
- info[1] = 32;
- info[2] = size / (info[0] * info[1]);
- if (info[2] >= 1024) {
- info[0] = 128;
- info[1] = 63;
- info[2] = size / (info[0] * info[1]);
- if (info[2] >= 1024) {
- info[0] = 255;
- info[1] = 63;
- info[2] = size / (info[0] * info[1]);
- if (info[2] >= 1024)
- info[2] = 1023;
- }
- }
- return 0;
-}
-
-/* calculate percentage of total accesses on a ldn */
-static int ldn_access_load(struct Scsi_Host *shpnt, int ldn)
-{
- if (IBM_DS(shpnt).total_accesses == 0)
- return (0);
- if (IBM_DS(shpnt).ldn_access[ldn] == 0)
- return (0);
- return (IBM_DS(shpnt).ldn_access[ldn] * 100) / IBM_DS(shpnt).total_accesses;
-}
-
-/* calculate total amount of r/w-accesses */
-static int ldn_access_total_read_write(struct Scsi_Host *shpnt)
-{
- int a;
- int i;
-
- a = 0;
- for (i = 0; i <= MAX_LOG_DEV; i++)
- a += IBM_DS(shpnt).ldn_read_access[i] + IBM_DS(shpnt).ldn_write_access[i];
- return (a);
-}
-
-static int ldn_access_total_inquiry(struct Scsi_Host *shpnt)
-{
- int a;
- int i;
-
- a = 0;
- for (i = 0; i <= MAX_LOG_DEV; i++)
- a += IBM_DS(shpnt).ldn_inquiry_access[i];
- return (a);
-}
-
-static int ldn_access_total_modeselect(struct Scsi_Host *shpnt)
-{
- int a;
- int i;
-
- a = 0;
- for (i = 0; i <= MAX_LOG_DEV; i++)
- a += IBM_DS(shpnt).ldn_modeselect_access[i];
- return (a);
-}
-
-/* routine to display info in the proc-fs-structure (a deluxe feature) */
-static int ibmmca_proc_info(struct Scsi_Host *shpnt, char *buffer, char **start, off_t offset, int length, int inout)
-{
- int len = 0;
- int i, id, lun;
- unsigned long flags;
- int max_pun;
-
-
- spin_lock_irqsave(shpnt->host_lock, flags); /* Check it */
-
- max_pun = subsystem_maxid(shpnt);
-
- len += sprintf(buffer + len, "\n IBM-SCSI-Subsystem-Linux-Driver, Version %s\n\n\n", IBMMCA_SCSI_DRIVER_VERSION);
- len += sprintf(buffer + len, " SCSI Access-Statistics:\n");
- len += sprintf(buffer + len, " Device Scanning Order....: %s\n", (ibm_ansi_order) ? "IBM/ANSI" : "New Industry Standard");
-#ifdef CONFIG_SCSI_MULTI_LUN
- len += sprintf(buffer + len, " Multiple LUN probing.....: Yes\n");
-#else
- len += sprintf(buffer + len, " Multiple LUN probing.....: No\n");
-#endif
- len += sprintf(buffer + len, " This Hostnumber..........: %d\n", shpnt->host_no);
- len += sprintf(buffer + len, " Base I/O-Port............: 0x%x\n", (unsigned int) (IM_CMD_REG(shpnt)));
- len += sprintf(buffer + len, " (Shared) IRQ.............: %d\n", IM_IRQ);
- len += sprintf(buffer + len, " Total Interrupts.........: %d\n", IBM_DS(shpnt).total_interrupts);
- len += sprintf(buffer + len, " Total SCSI Accesses......: %d\n", IBM_DS(shpnt).total_accesses);
- len += sprintf(buffer + len, " Total short SCBs.........: %d\n", IBM_DS(shpnt).scbs);
- len += sprintf(buffer + len, " Total long SCBs..........: %d\n", IBM_DS(shpnt).long_scbs);
- len += sprintf(buffer + len, " Total SCSI READ/WRITE..: %d\n", ldn_access_total_read_write(shpnt));
- len += sprintf(buffer + len, " Total SCSI Inquiries...: %d\n", ldn_access_total_inquiry(shpnt));
- len += sprintf(buffer + len, " Total SCSI Modeselects.: %d\n", ldn_access_total_modeselect(shpnt));
- len += sprintf(buffer + len, " Total SCSI other cmds..: %d\n", IBM_DS(shpnt).total_accesses - ldn_access_total_read_write(shpnt)
- - ldn_access_total_modeselect(shpnt)
- - ldn_access_total_inquiry(shpnt));
- len += sprintf(buffer + len, " Total SCSI command fails.: %d\n\n", IBM_DS(shpnt).total_errors);
- len += sprintf(buffer + len, " Logical-Device-Number (LDN) Access-Statistics:\n");
- len += sprintf(buffer + len, " LDN | Accesses [%%] | READ | WRITE | ASSIGNMENTS\n");
- len += sprintf(buffer + len, " -----|--------------|-----------|-----------|--------------\n");
- for (i = 0; i <= MAX_LOG_DEV; i++)
- len += sprintf(buffer + len, " %2X | %3d | %8d | %8d | %8d\n", i, ldn_access_load(shpnt, i), IBM_DS(shpnt).ldn_read_access[i], IBM_DS(shpnt).ldn_write_access[i], IBM_DS(shpnt).ldn_assignments[i]);
- len += sprintf(buffer + len, " -----------------------------------------------------------\n\n");
- len += sprintf(buffer + len, " Dynamical-LDN-Assignment-Statistics:\n");
- len += sprintf(buffer + len, " Number of physical SCSI-devices..: %d (+ Adapter)\n", IBM_DS(shpnt).total_scsi_devices);
- len += sprintf(buffer + len, " Dynamical Assignment necessary...: %s\n", IBM_DS(shpnt).dyn_flag ? "Yes" : "No ");
- len += sprintf(buffer + len, " Next LDN to be assigned..........: 0x%x\n", next_ldn(shpnt));
- len += sprintf(buffer + len, " Dynamical assignments done yet...: %d\n", IBM_DS(shpnt).dynamical_assignments);
- len += sprintf(buffer + len, "\n Current SCSI-Device-Mapping:\n");
- len += sprintf(buffer + len, " Physical SCSI-Device Map Logical SCSI-Device Map\n");
- len += sprintf(buffer + len, " ID\\LUN 0 1 2 3 4 5 6 7 ID\\LUN 0 1 2 3 4 5 6 7\n");
- for (id = 0; id < max_pun; id++) {
- len += sprintf(buffer + len, " %2d ", id);
- for (lun = 0; lun < 8; lun++)
- len += sprintf(buffer + len, "%2s ", ti_p(get_scsi(shpnt)[id][lun]));
- len += sprintf(buffer + len, " %2d ", id);
- for (lun = 0; lun < 8; lun++)
- len += sprintf(buffer + len, "%2s ", ti_l(get_ldn(shpnt)[id][lun]));
- len += sprintf(buffer + len, "\n");
- }
-
- len += sprintf(buffer + len, "(A = IBM-Subsystem, D = Harddisk, T = Tapedrive, P = Processor, W = WORM,\n");
- len += sprintf(buffer + len, " R = CD-ROM, S = Scanner, M = MO-Drive, C = Medium-Changer, + = unprovided LUN,\n");
- len += sprintf(buffer + len, " - = nothing found, nothing assigned or unprobed LUN)\n\n");
-
- *start = buffer + offset;
- len -= offset;
- if (len > length)
- len = length;
- spin_unlock_irqrestore(shpnt->host_lock, flags);
- return len;
-}
-
-static int option_setup(char *str)
-{
- int ints[IM_MAX_HOSTS];
- char *cur = str;
- int i = 1;
-
- while (cur && isdigit(*cur) && i < IM_MAX_HOSTS) {
- ints[i++] = simple_strtoul(cur, NULL, 0);
- if ((cur = strchr(cur, ',')) != NULL)
- cur++;
- }
- ints[0] = i - 1;
- internal_ibmmca_scsi_setup(cur, ints);
- return 1;
-}
-
-__setup("ibmmcascsi=", option_setup);
-
-static struct mca_driver ibmmca_driver = {
- .id_table = ibmmca_id_table,
- .driver = {
- .name = "ibmmca",
- .bus = &mca_bus_type,
- .probe = ibmmca_probe,
- .remove = __devexit_p(ibmmca_remove),
- },
-};
-
-static int __init ibmmca_init(void)
-{
-#ifdef MODULE
- /* If the driver is run as module, read from conf.modules or cmd-line */
- if (boot_options)
- option_setup(boot_options);
-#endif
-
- return mca_register_driver_integrated(&ibmmca_driver, MCA_INTEGSCSI);
-}
-
-static void __exit ibmmca_exit(void)
-{
- mca_unregister_driver(&ibmmca_driver);
-}
-
-module_init(ibmmca_init);
-module_exit(ibmmca_exit);
diff --git a/drivers/scsi/sim710.c b/drivers/scsi/sim710.c
index 8ac6ce792b69..a318264a4ba1 100644
--- a/drivers/scsi/sim710.c
+++ b/drivers/scsi/sim710.c
@@ -17,7 +17,7 @@
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*----------------------------------------------------------------------------
*
- * MCA card detection code by Trent McNair.
+ * MCA card detection code by Trent McNair. (now deleted)
* Fixes to not explicitly nul bss data from Xavier Bestel.
* Some multiboard fixes from Rolf Eike Beer.
* Auto probing of EISA config space from Trevor Hemsley.
@@ -32,7 +32,6 @@
#include <linux/blkdev.h>
#include <linux/device.h>
#include <linux/init.h>
-#include <linux/mca.h>
#include <linux/eisa.h>
#include <linux/interrupt.h>
#include <scsi/scsi_host.h>
@@ -43,7 +42,7 @@
#include "53c700.h"
-/* Must be enough for both EISA and MCA */
+/* Must be enough for EISA */
#define MAX_SLOTS 8
static __u8 __initdata id_array[MAX_SLOTS] = { [0 ... MAX_SLOTS-1] = 7 };
@@ -89,7 +88,7 @@ param_setup(char *str)
__setup("sim710=", param_setup);
static struct scsi_host_template sim710_driver_template = {
- .name = "LSI (Symbios) 710 MCA/EISA",
+ .name = "LSI (Symbios) 710 EISA",
.proc_name = "sim710",
.this_id = 7,
.module = THIS_MODULE,
@@ -169,114 +168,6 @@ sim710_device_remove(struct device *dev)
return 0;
}
-#ifdef CONFIG_MCA
-
-/* CARD ID 01BB and 01BA use the same pos values */
-#define MCA_01BB_IO_PORTS { 0x0000, 0x0000, 0x0800, 0x0C00, 0x1000, 0x1400, \
- 0x1800, 0x1C00, 0x2000, 0x2400, 0x2800, \
- 0x2C00, 0x3000, 0x3400, 0x3800, 0x3C00, \
- 0x4000, 0x4400, 0x4800, 0x4C00, 0x5000 }
-
-#define MCA_01BB_IRQS { 3, 5, 11, 14 }
-
-/* CARD ID 004f */
-#define MCA_004F_IO_PORTS { 0x0000, 0x0200, 0x0300, 0x0400, 0x0500, 0x0600 }
-#define MCA_004F_IRQS { 5, 9, 14 }
-
-static short sim710_mca_id_table[] = { 0x01bb, 0x01ba, 0x004f, 0};
-
-static __init int
-sim710_mca_probe(struct device *dev)
-{
- struct mca_device *mca_dev = to_mca_device(dev);
- int slot = mca_dev->slot;
- int pos[3];
- unsigned int base;
- int irq_vector;
- short id = sim710_mca_id_table[mca_dev->index];
- static int io_004f_by_pos[] = MCA_004F_IO_PORTS;
- static int irq_004f_by_pos[] = MCA_004F_IRQS;
- static int io_01bb_by_pos[] = MCA_01BB_IO_PORTS;
- static int irq_01bb_by_pos[] = MCA_01BB_IRQS;
- char *name;
- int clock;
-
- pos[0] = mca_device_read_stored_pos(mca_dev, 2);
- pos[1] = mca_device_read_stored_pos(mca_dev, 3);
- pos[2] = mca_device_read_stored_pos(mca_dev, 4);
-
- /*
- * 01BB & 01BA port base by bits 7,6,5,4,3,2 in pos[2]
- *
- * 000000 <disabled> 001010 0x2800
- * 000001 <invalid> 001011 0x2C00
- * 000010 0x0800 001100 0x3000
- * 000011 0x0C00 001101 0x3400
- * 000100 0x1000 001110 0x3800
- * 000101 0x1400 001111 0x3C00
- * 000110 0x1800 010000 0x4000
- * 000111 0x1C00 010001 0x4400
- * 001000 0x2000 010010 0x4800
- * 001001 0x2400 010011 0x4C00
- * 010100 0x5000
- *
- * 00F4 port base by bits 3,2,1 in pos[0]
- *
- * 000 <disabled> 001 0x200
- * 010 0x300 011 0x400
- * 100 0x500 101 0x600
- *
- * 01BB & 01BA IRQ is specified in pos[0] bits 7 and 6:
- *
- * 00 3 10 11
- * 01 5 11 14
- *
- * 00F4 IRQ specified by bits 6,5,4 in pos[0]
- *
- * 100 5 101 9
- * 110 14
- */
-
- if (id == 0x01bb || id == 0x01ba) {
- base = io_01bb_by_pos[(pos[2] & 0xFC) >> 2];
- irq_vector =
- irq_01bb_by_pos[((pos[0] & 0xC0) >> 6)];
-
- clock = 50;
- if (id == 0x01bb)
- name = "NCR 3360/3430 SCSI SubSystem";
- else
- name = "NCR Dual SIOP SCSI Host Adapter Board";
- } else if ( id == 0x004f ) {
- base = io_004f_by_pos[((pos[0] & 0x0E) >> 1)];
- irq_vector =
- irq_004f_by_pos[((pos[0] & 0x70) >> 4) - 4];
- clock = 50;
- name = "NCR 53c710 SCSI Host Adapter Board";
- } else {
- return -ENODEV;
- }
- mca_device_set_name(mca_dev, name);
- mca_device_set_claim(mca_dev, 1);
- base = mca_device_transform_ioport(mca_dev, base);
- irq_vector = mca_device_transform_irq(mca_dev, irq_vector);
-
- return sim710_probe_common(dev, base, irq_vector, clock,
- 0, id_array[slot]);
-}
-
-static struct mca_driver sim710_mca_driver = {
- .id_table = sim710_mca_id_table,
- .driver = {
- .name = "sim710",
- .bus = &mca_bus_type,
- .probe = sim710_mca_probe,
- .remove = __devexit_p(sim710_device_remove),
- },
-};
-
-#endif /* CONFIG_MCA */
-
#ifdef CONFIG_EISA
static struct eisa_device_id sim710_eisa_ids[] = {
{ "CPQ4410" },
@@ -344,10 +235,6 @@ static int __init sim710_init(void)
param_setup(sim710);
#endif
-#ifdef CONFIG_MCA
- err = mca_register_driver(&sim710_mca_driver);
-#endif
-
#ifdef CONFIG_EISA
err = eisa_driver_register(&sim710_eisa_driver);
#endif
@@ -361,11 +248,6 @@ static int __init sim710_init(void)
static void __exit sim710_exit(void)
{
-#ifdef CONFIG_MCA
- if (MCA_bus)
- mca_unregister_driver(&sim710_mca_driver);
-#endif
-
#ifdef CONFIG_EISA
eisa_driver_unregister(&sim710_eisa_driver);
#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 14:05:54 +0100