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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/scsi/qla1280.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/scsi/qla1280.c')
-rw-r--r--drivers/scsi/qla1280.c4863
1 files changed, 4863 insertions, 0 deletions
diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c
new file mode 100644
index 000000000000..4ad280814990
--- /dev/null
+++ b/drivers/scsi/qla1280.c
@@ -0,0 +1,4863 @@
1/******************************************************************************
2* QLOGIC LINUX SOFTWARE
3*
4* QLogic QLA1280 (Ultra2) and QLA12160 (Ultra3) SCSI driver
5* Copyright (C) 2000 Qlogic Corporation (www.qlogic.com)
6* Copyright (C) 2001-2004 Jes Sorensen, Wild Open Source Inc.
7* Copyright (C) 2003-2004 Christoph Hellwig
8*
9* This program is free software; you can redistribute it and/or modify it
10* under the terms of the GNU General Public License as published by the
11* Free Software Foundation; either version 2, or (at your option) any
12* later version.
13*
14* This program is distributed in the hope that it will be useful, but
15* WITHOUT ANY WARRANTY; without even the implied warranty of
16* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17* General Public License for more details.
18*
19******************************************************************************/
20#define QLA1280_VERSION "3.25"
21/*****************************************************************************
22 Revision History:
23 Rev 3.25.1, February 10, 2005 Christoph Hellwig
24 - use pci_map_single to map non-S/G requests
25 - remove qla1280_proc_info
26 Rev 3.25, September 28, 2004, Christoph Hellwig
27 - add support for ISP1020/1040
28 - don't include "scsi.h" anymore for 2.6.x
29 Rev 3.24.4 June 7, 2004 Christoph Hellwig
30 - restructure firmware loading, cleanup initialization code
31 - prepare support for ISP1020/1040 chips
32 Rev 3.24.3 January 19, 2004, Jes Sorensen
33 - Handle PCI DMA mask settings correctly
34 - Correct order of error handling in probe_one, free_irq should not
35 be called if request_irq failed
36 Rev 3.24.2 January 19, 2004, James Bottomley & Andrew Vasquez
37 - Big endian fixes (James)
38 - Remove bogus IOCB content on zero data transfer commands (Andrew)
39 Rev 3.24.1 January 5, 2004, Jes Sorensen
40 - Initialize completion queue to avoid OOPS on probe
41 - Handle interrupts during mailbox testing
42 Rev 3.24 November 17, 2003, Christoph Hellwig
43 - use struct list_head for completion queue
44 - avoid old Scsi_FOO typedefs
45 - cleanup 2.4 compat glue a bit
46 - use <scsi/scsi_*.h> headers on 2.6 instead of "scsi.h"
47 - make initialization for memory mapped vs port I/O more similar
48 - remove broken pci config space manipulation
49 - kill more cruft
50 - this is an almost perfect 2.6 scsi driver now! ;)
51 Rev 3.23.39 December 17, 2003, Jes Sorensen
52 - Delete completion queue from srb if mailbox command failed to
53 to avoid qla1280_done completeting qla1280_error_action's
54 obsolete context
55 - Reduce arguments for qla1280_done
56 Rev 3.23.38 October 18, 2003, Christoph Hellwig
57 - Convert to new-style hotplugable driver for 2.6
58 - Fix missing scsi_unregister/scsi_host_put on HBA removal
59 - Kill some more cruft
60 Rev 3.23.37 October 1, 2003, Jes Sorensen
61 - Make MMIO depend on CONFIG_X86_VISWS instead of yet another
62 random CONFIG option
63 - Clean up locking in probe path
64 Rev 3.23.36 October 1, 2003, Christoph Hellwig
65 - queuecommand only ever receives new commands - clear flags
66 - Reintegrate lost fixes from Linux 2.5
67 Rev 3.23.35 August 14, 2003, Jes Sorensen
68 - Build against 2.6
69 Rev 3.23.34 July 23, 2003, Jes Sorensen
70 - Remove pointless TRUE/FALSE macros
71 - Clean up vchan handling
72 Rev 3.23.33 July 3, 2003, Jes Sorensen
73 - Don't define register access macros before define determining MMIO.
74 This just happend to work out on ia64 but not elsewhere.
75 - Don't try and read from the card while it is in reset as
76 it won't respond and causes an MCA
77 Rev 3.23.32 June 23, 2003, Jes Sorensen
78 - Basic support for boot time arguments
79 Rev 3.23.31 June 8, 2003, Jes Sorensen
80 - Reduce boot time messages
81 Rev 3.23.30 June 6, 2003, Jes Sorensen
82 - Do not enable sync/wide/ppr before it has been determined
83 that the target device actually supports it
84 - Enable DMA arbitration for multi channel controllers
85 Rev 3.23.29 June 3, 2003, Jes Sorensen
86 - Port to 2.5.69
87 Rev 3.23.28 June 3, 2003, Jes Sorensen
88 - Eliminate duplicate marker commands on bus resets
89 - Handle outstanding commands appropriately on bus/device resets
90 Rev 3.23.27 May 28, 2003, Jes Sorensen
91 - Remove bogus input queue code, let the Linux SCSI layer do the work
92 - Clean up NVRAM handling, only read it once from the card
93 - Add a number of missing default nvram parameters
94 Rev 3.23.26 Beta May 28, 2003, Jes Sorensen
95 - Use completion queue for mailbox commands instead of busy wait
96 Rev 3.23.25 Beta May 27, 2003, James Bottomley
97 - Migrate to use new error handling code
98 Rev 3.23.24 Beta May 21, 2003, James Bottomley
99 - Big endian support
100 - Cleanup data direction code
101 Rev 3.23.23 Beta May 12, 2003, Jes Sorensen
102 - Switch to using MMIO instead of PIO
103 Rev 3.23.22 Beta April 15, 2003, Jes Sorensen
104 - Fix PCI parity problem with 12160 during reset.
105 Rev 3.23.21 Beta April 14, 2003, Jes Sorensen
106 - Use pci_map_page()/pci_unmap_page() instead of map_single version.
107 Rev 3.23.20 Beta April 9, 2003, Jes Sorensen
108 - Remove < 2.4.x support
109 - Introduce HOST_LOCK to make the spin lock changes portable.
110 - Remove a bunch of idiotic and unnecessary typedef's
111 - Kill all leftovers of target-mode support which never worked anyway
112 Rev 3.23.19 Beta April 11, 2002, Linus Torvalds
113 - Do qla1280_pci_config() before calling request_irq() and
114 request_region()
115 - Use pci_dma_hi32() to handle upper word of DMA addresses instead
116 of large shifts
117 - Hand correct arguments to free_irq() in case of failure
118 Rev 3.23.18 Beta April 11, 2002, Jes Sorensen
119 - Run source through Lindent and clean up the output
120 Rev 3.23.17 Beta April 11, 2002, Jes Sorensen
121 - Update SCSI firmware to qla1280 v8.15.00 and qla12160 v10.04.32
122 Rev 3.23.16 Beta March 19, 2002, Jes Sorensen
123 - Rely on mailbox commands generating interrupts - do not
124 run qla1280_isr() from ql1280_mailbox_command()
125 - Remove device_reg_t
126 - Integrate ql12160_set_target_parameters() with 1280 version
127 - Make qla1280_setup() non static
128 - Do not call qla1280_check_for_dead_scsi_bus() on every I/O request
129 sent to the card - this command pauses the firmare!!!
130 Rev 3.23.15 Beta March 19, 2002, Jes Sorensen
131 - Clean up qla1280.h - remove obsolete QL_DEBUG_LEVEL_x definitions
132 - Remove a pile of pointless and confusing (srb_t **) and
133 (scsi_lu_t *) typecasts
134 - Explicit mark that we do not use the new error handling (for now)
135 - Remove scsi_qla_host_t and use 'struct' instead
136 - Remove in_abort, watchdog_enabled, dpc, dpc_sched, bios_enabled,
137 pci_64bit_slot flags which weren't used for anything anyway
138 - Grab host->host_lock while calling qla1280_isr() from abort()
139 - Use spin_lock()/spin_unlock() in qla1280_intr_handler() - we
140 do not need to save/restore flags in the interrupt handler
141 - Enable interrupts early (before any mailbox access) in preparation
142 for cleaning up the mailbox handling
143 Rev 3.23.14 Beta March 14, 2002, Jes Sorensen
144 - Further cleanups. Remove all trace of QL_DEBUG_LEVEL_x and replace
145 it with proper use of dprintk().
146 - Make qla1280_print_scsi_cmd() and qla1280_dump_buffer() both take
147 a debug level argument to determine if data is to be printed
148 - Add KERN_* info to printk()
149 Rev 3.23.13 Beta March 14, 2002, Jes Sorensen
150 - Significant cosmetic cleanups
151 - Change debug code to use dprintk() and remove #if mess
152 Rev 3.23.12 Beta March 13, 2002, Jes Sorensen
153 - More cosmetic cleanups, fix places treating return as function
154 - use cpu_relax() in qla1280_debounce_register()
155 Rev 3.23.11 Beta March 13, 2002, Jes Sorensen
156 - Make it compile under 2.5.5
157 Rev 3.23.10 Beta October 1, 2001, Jes Sorensen
158 - Do no typecast short * to long * in QL1280BoardTbl, this
159 broke miserably on big endian boxes
160 Rev 3.23.9 Beta September 30, 2001, Jes Sorensen
161 - Remove pre 2.2 hack for checking for reentrance in interrupt handler
162 - Make data types used to receive from SCSI_{BUS,TCN,LUN}_32
163 unsigned int to match the types from struct scsi_cmnd
164 Rev 3.23.8 Beta September 29, 2001, Jes Sorensen
165 - Remove bogus timer_t typedef from qla1280.h
166 - Remove obsolete pre 2.2 PCI setup code, use proper #define's
167 for PCI_ values, call pci_set_master()
168 - Fix memleak of qla1280_buffer on module unload
169 - Only compile module parsing code #ifdef MODULE - should be
170 changed to use individual MODULE_PARM's later
171 - Remove dummy_buffer that was never modified nor printed
172 - ENTER()/LEAVE() are noops unless QL_DEBUG_LEVEL_3, hence remove
173 #ifdef QL_DEBUG_LEVEL_3/#endif around ENTER()/LEAVE() calls
174 - Remove \r from print statements, this is Linux, not DOS
175 - Remove obsolete QLA1280_{SCSILU,INTR,RING}_{LOCK,UNLOCK}
176 dummy macros
177 - Remove C++ compile hack in header file as Linux driver are not
178 supposed to be compiled as C++
179 - Kill MS_64BITS macro as it makes the code more readable
180 - Remove unnecessary flags.in_interrupts bit
181 Rev 3.23.7 Beta August 20, 2001, Jes Sorensen
182 - Dont' check for set flags on q->q_flag one by one in qla1280_next()
183 - Check whether the interrupt was generated by the QLA1280 before
184 doing any processing
185 - qla1280_status_entry(): Only zero out part of sense_buffer that
186 is not being copied into
187 - Remove more superflouous typecasts
188 - qla1280_32bit_start_scsi() replace home-brew memcpy() with memcpy()
189 Rev 3.23.6 Beta August 20, 2001, Tony Luck, Intel
190 - Don't walk the entire list in qla1280_putq_t() just to directly
191 grab the pointer to the last element afterwards
192 Rev 3.23.5 Beta August 9, 2001, Jes Sorensen
193 - Don't use SA_INTERRUPT, it's use is deprecated for this kinda driver
194 Rev 3.23.4 Beta August 8, 2001, Jes Sorensen
195 - Set dev->max_sectors to 1024
196 Rev 3.23.3 Beta August 6, 2001, Jes Sorensen
197 - Provide compat macros for pci_enable_device(), pci_find_subsys()
198 and scsi_set_pci_device()
199 - Call scsi_set_pci_device() for all devices
200 - Reduce size of kernel version dependent device probe code
201 - Move duplicate probe/init code to separate function
202 - Handle error if qla1280_mem_alloc() fails
203 - Kill OFFSET() macro and use Linux's PCI definitions instead
204 - Kill private structure defining PCI config space (struct config_reg)
205 - Only allocate I/O port region if not in MMIO mode
206 - Remove duplicate (unused) sanity check of sife of srb_t
207 Rev 3.23.2 Beta August 6, 2001, Jes Sorensen
208 - Change home-brew memset() implementations to use memset()
209 - Remove all references to COMTRACE() - accessing a PC's COM2 serial
210 port directly is not legal under Linux.
211 Rev 3.23.1 Beta April 24, 2001, Jes Sorensen
212 - Remove pre 2.2 kernel support
213 - clean up 64 bit DMA setting to use 2.4 API (provide backwards compat)
214 - Fix MMIO access to use readl/writel instead of directly
215 dereferencing pointers
216 - Nuke MSDOS debugging code
217 - Change true/false data types to int from uint8_t
218 - Use int for counters instead of uint8_t etc.
219 - Clean up size & byte order conversion macro usage
220 Rev 3.23 Beta January 11, 2001 BN Qlogic
221 - Added check of device_id when handling non
222 QLA12160s during detect().
223 Rev 3.22 Beta January 5, 2001 BN Qlogic
224 - Changed queue_task() to schedule_task()
225 for kernels 2.4.0 and higher.
226 Note: 2.4.0-testxx kernels released prior to
227 the actual 2.4.0 kernel release on January 2001
228 will get compile/link errors with schedule_task().
229 Please update your kernel to released 2.4.0 level,
230 or comment lines in this file flagged with 3.22
231 to resolve compile/link error of schedule_task().
232 - Added -DCONFIG_SMP in addition to -D__SMP__
233 in Makefile for 2.4.0 builds of driver as module.
234 Rev 3.21 Beta January 4, 2001 BN Qlogic
235 - Changed criteria of 64/32 Bit mode of HBA
236 operation according to BITS_PER_LONG rather
237 than HBA's NVRAM setting of >4Gig memory bit;
238 so that the HBA auto-configures without the need
239 to setup each system individually.
240 Rev 3.20 Beta December 5, 2000 BN Qlogic
241 - Added priority handling to IA-64 onboard SCSI
242 ISP12160 chip for kernels greater than 2.3.18.
243 - Added irqrestore for qla1280_intr_handler.
244 - Enabled /proc/scsi/qla1280 interface.
245 - Clear /proc/scsi/qla1280 counters in detect().
246 Rev 3.19 Beta October 13, 2000 BN Qlogic
247 - Declare driver_template for new kernel
248 (2.4.0 and greater) scsi initialization scheme.
249 - Update /proc/scsi entry for 2.3.18 kernels and
250 above as qla1280
251 Rev 3.18 Beta October 10, 2000 BN Qlogic
252 - Changed scan order of adapters to map
253 the QLA12160 followed by the QLA1280.
254 Rev 3.17 Beta September 18, 2000 BN Qlogic
255 - Removed warnings for 32 bit 2.4.x compiles
256 - Corrected declared size for request and response
257 DMA addresses that are kept in each ha
258 Rev. 3.16 Beta August 25, 2000 BN Qlogic
259 - Corrected 64 bit addressing issue on IA-64
260 where the upper 32 bits were not properly
261 passed to the RISC engine.
262 Rev. 3.15 Beta August 22, 2000 BN Qlogic
263 - Modified qla1280_setup_chip to properly load
264 ISP firmware for greater that 4 Gig memory on IA-64
265 Rev. 3.14 Beta August 16, 2000 BN Qlogic
266 - Added setting of dma_mask to full 64 bit
267 if flags.enable_64bit_addressing is set in NVRAM
268 Rev. 3.13 Beta August 16, 2000 BN Qlogic
269 - Use new PCI DMA mapping APIs for 2.4.x kernel
270 Rev. 3.12 July 18, 2000 Redhat & BN Qlogic
271 - Added check of pci_enable_device to detect() for 2.3.x
272 - Use pci_resource_start() instead of
273 pdev->resource[0].start in detect() for 2.3.x
274 - Updated driver version
275 Rev. 3.11 July 14, 2000 BN Qlogic
276 - Updated SCSI Firmware to following versions:
277 qla1x80: 8.13.08
278 qla1x160: 10.04.08
279 - Updated driver version to 3.11
280 Rev. 3.10 June 23, 2000 BN Qlogic
281 - Added filtering of AMI SubSys Vendor ID devices
282 Rev. 3.9
283 - DEBUG_QLA1280 undefined and new version BN Qlogic
284 Rev. 3.08b May 9, 2000 MD Dell
285 - Added logic to check against AMI subsystem vendor ID
286 Rev. 3.08 May 4, 2000 DG Qlogic
287 - Added logic to check for PCI subsystem ID.
288 Rev. 3.07 Apr 24, 2000 DG & BN Qlogic
289 - Updated SCSI Firmware to following versions:
290 qla12160: 10.01.19
291 qla1280: 8.09.00
292 Rev. 3.06 Apr 12, 2000 DG & BN Qlogic
293 - Internal revision; not released
294 Rev. 3.05 Mar 28, 2000 DG & BN Qlogic
295 - Edit correction for virt_to_bus and PROC.
296 Rev. 3.04 Mar 28, 2000 DG & BN Qlogic
297 - Merge changes from ia64 port.
298 Rev. 3.03 Mar 28, 2000 BN Qlogic
299 - Increase version to reflect new code drop with compile fix
300 of issue with inclusion of linux/spinlock for 2.3 kernels
301 Rev. 3.02 Mar 15, 2000 BN Qlogic
302 - Merge qla1280_proc_info from 2.10 code base
303 Rev. 3.01 Feb 10, 2000 BN Qlogic
304 - Corrected code to compile on a 2.2.x kernel.
305 Rev. 3.00 Jan 17, 2000 DG Qlogic
306 - Added 64-bit support.
307 Rev. 2.07 Nov 9, 1999 DG Qlogic
308 - Added new routine to set target parameters for ISP12160.
309 Rev. 2.06 Sept 10, 1999 DG Qlogic
310 - Added support for ISP12160 Ultra 3 chip.
311 Rev. 2.03 August 3, 1999 Fred Lewis, Intel DuPont
312 - Modified code to remove errors generated when compiling with
313 Cygnus IA64 Compiler.
314 - Changed conversion of pointers to unsigned longs instead of integers.
315 - Changed type of I/O port variables from uint32_t to unsigned long.
316 - Modified OFFSET macro to work with 64-bit as well as 32-bit.
317 - Changed sprintf and printk format specifiers for pointers to %p.
318 - Changed some int to long type casts where needed in sprintf & printk.
319 - Added l modifiers to sprintf and printk format specifiers for longs.
320 - Removed unused local variables.
321 Rev. 1.20 June 8, 1999 DG, Qlogic
322 Changes to support RedHat release 6.0 (kernel 2.2.5).
323 - Added SCSI exclusive access lock (io_request_lock) when accessing
324 the adapter.
325 - Added changes for the new LINUX interface template. Some new error
326 handling routines have been added to the template, but for now we
327 will use the old ones.
328 - Initial Beta Release.
329*****************************************************************************/
330
331
332#include <linux/config.h>
333#include <linux/module.h>
334
335#include <linux/version.h>
336#include <linux/types.h>
337#include <linux/string.h>
338#include <linux/errno.h>
339#include <linux/kernel.h>
340#include <linux/ioport.h>
341#include <linux/delay.h>
342#include <linux/timer.h>
343#include <linux/sched.h>
344#include <linux/pci.h>
345#include <linux/proc_fs.h>
346#include <linux/stat.h>
347#include <linux/slab.h>
348#include <linux/pci_ids.h>
349#include <linux/interrupt.h>
350#include <linux/init.h>
351
352#include <asm/io.h>
353#include <asm/irq.h>
354#include <asm/byteorder.h>
355#include <asm/processor.h>
356#include <asm/types.h>
357#include <asm/system.h>
358
359#if LINUX_VERSION_CODE >= 0x020545
360#include <scsi/scsi.h>
361#include <scsi/scsi_cmnd.h>
362#include <scsi/scsi_device.h>
363#include <scsi/scsi_host.h>
364#include <scsi/scsi_tcq.h>
365#else
366#include <linux/blk.h>
367#include "scsi.h"
368#include <scsi/scsi_host.h>
369#include "sd.h"
370#endif
371
372#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
373#include <asm/sn/io.h>
374#endif
375
376#if LINUX_VERSION_CODE < 0x020407
377#error "Kernels older than 2.4.7 are no longer supported"
378#endif
379
380
381/*
382 * Compile time Options:
383 * 0 - Disable and 1 - Enable
384 */
385#define DEBUG_QLA1280_INTR 0
386#define DEBUG_PRINT_NVRAM 0
387#define DEBUG_QLA1280 0
388
389/*
390 * The SGI VISWS is broken and doesn't support MMIO ;-(
391 */
392#ifdef CONFIG_X86_VISWS
393#define MEMORY_MAPPED_IO 0
394#else
395#define MEMORY_MAPPED_IO 1
396#endif
397
398#define UNIQUE_FW_NAME
399#include "qla1280.h"
400#include "ql12160_fw.h" /* ISP RISC codes */
401#include "ql1280_fw.h"
402#include "ql1040_fw.h"
403
404
405/*
406 * Missing PCI ID's
407 */
408#ifndef PCI_DEVICE_ID_QLOGIC_ISP1080
409#define PCI_DEVICE_ID_QLOGIC_ISP1080 0x1080
410#endif
411#ifndef PCI_DEVICE_ID_QLOGIC_ISP1240
412#define PCI_DEVICE_ID_QLOGIC_ISP1240 0x1240
413#endif
414#ifndef PCI_DEVICE_ID_QLOGIC_ISP1280
415#define PCI_DEVICE_ID_QLOGIC_ISP1280 0x1280
416#endif
417#ifndef PCI_DEVICE_ID_QLOGIC_ISP10160
418#define PCI_DEVICE_ID_QLOGIC_ISP10160 0x1016
419#endif
420#ifndef PCI_DEVICE_ID_QLOGIC_ISP12160
421#define PCI_DEVICE_ID_QLOGIC_ISP12160 0x1216
422#endif
423
424#ifndef PCI_VENDOR_ID_AMI
425#define PCI_VENDOR_ID_AMI 0x101e
426#endif
427
428#ifndef BITS_PER_LONG
429#error "BITS_PER_LONG not defined!"
430#endif
431#if (BITS_PER_LONG == 64) || defined CONFIG_HIGHMEM
432#define QLA_64BIT_PTR 1
433#endif
434
435#ifdef QLA_64BIT_PTR
436#define pci_dma_hi32(a) ((a >> 16) >> 16)
437#else
438#define pci_dma_hi32(a) 0
439#endif
440#define pci_dma_lo32(a) (a & 0xffffffff)
441
442#define NVRAM_DELAY() udelay(500) /* 2 microseconds */
443
444#if LINUX_VERSION_CODE < 0x020500
445#define HOST_LOCK &io_request_lock
446#define irqreturn_t void
447#define IRQ_RETVAL(foo)
448#define MSG_ORDERED_TAG 1
449
450#define DMA_BIDIRECTIONAL SCSI_DATA_UNKNOWN
451#define DMA_TO_DEVICE SCSI_DATA_WRITE
452#define DMA_FROM_DEVICE SCSI_DATA_READ
453#define DMA_NONE SCSI_DATA_NONE
454
455#ifndef HAVE_SECTOR_T
456typedef unsigned int sector_t;
457#endif
458
459static inline void
460scsi_adjust_queue_depth(struct scsi_device *device, int tag, int depth)
461{
462 if (tag) {
463 device->tagged_queue = tag;
464 device->current_tag = 0;
465 }
466 device->queue_depth = depth;
467}
468static inline struct Scsi_Host *scsi_host_alloc(Scsi_Host_Template *t, size_t s)
469{
470 return scsi_register(t, s);
471}
472static inline void scsi_host_put(struct Scsi_Host *h)
473{
474 scsi_unregister(h);
475}
476#else
477#define HOST_LOCK ha->host->host_lock
478#endif
479#if LINUX_VERSION_CODE < 0x020600
480#define DEV_SIMPLE_TAGS(device) device->tagged_queue
481/*
482 * Hack around that qla1280_remove_one is called from
483 * qla1280_release in 2.4
484 */
485#undef __devexit
486#define __devexit
487#else
488#define DEV_SIMPLE_TAGS(device) device->simple_tags
489#endif
490#if defined(__ia64__) && !defined(ia64_platform_is)
491#define ia64_platform_is(foo) (!strcmp(x, platform_name))
492#endif
493
494
495#define IS_ISP1040(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020)
496#define IS_ISP1x40(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020 || \
497 ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1240)
498#define IS_ISP1x160(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP10160 || \
499 ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP12160)
500
501
502static int qla1280_probe_one(struct pci_dev *, const struct pci_device_id *);
503static void qla1280_remove_one(struct pci_dev *);
504
505/*
506 * QLogic Driver Support Function Prototypes.
507 */
508static void qla1280_done(struct scsi_qla_host *);
509#if LINUX_VERSION_CODE < 0x020545
510static void qla1280_get_target_options(struct scsi_cmnd *, struct scsi_qla_host *);
511#endif
512static int qla1280_get_token(char *);
513static int qla1280_setup(char *s) __init;
514
515/*
516 * QLogic ISP1280 Hardware Support Function Prototypes.
517 */
518static int qla1280_load_firmware(struct scsi_qla_host *);
519static int qla1280_init_rings(struct scsi_qla_host *);
520static int qla1280_nvram_config(struct scsi_qla_host *);
521static int qla1280_mailbox_command(struct scsi_qla_host *,
522 uint8_t, uint16_t *);
523static int qla1280_bus_reset(struct scsi_qla_host *, int);
524static int qla1280_device_reset(struct scsi_qla_host *, int, int);
525static int qla1280_abort_device(struct scsi_qla_host *, int, int, int);
526static int qla1280_abort_command(struct scsi_qla_host *, struct srb *, int);
527static int qla1280_abort_isp(struct scsi_qla_host *);
528#ifdef QLA_64BIT_PTR
529static int qla1280_64bit_start_scsi(struct scsi_qla_host *, struct srb *);
530#else
531static int qla1280_32bit_start_scsi(struct scsi_qla_host *, struct srb *);
532#endif
533static void qla1280_nv_write(struct scsi_qla_host *, uint16_t);
534static void qla1280_poll(struct scsi_qla_host *);
535static void qla1280_reset_adapter(struct scsi_qla_host *);
536static void qla1280_marker(struct scsi_qla_host *, int, int, int, u8);
537static void qla1280_isp_cmd(struct scsi_qla_host *);
538static void qla1280_isr(struct scsi_qla_host *, struct list_head *);
539static void qla1280_rst_aen(struct scsi_qla_host *);
540static void qla1280_status_entry(struct scsi_qla_host *, struct response *,
541 struct list_head *);
542static void qla1280_error_entry(struct scsi_qla_host *, struct response *,
543 struct list_head *);
544static uint16_t qla1280_get_nvram_word(struct scsi_qla_host *, uint32_t);
545static uint16_t qla1280_nvram_request(struct scsi_qla_host *, uint32_t);
546static uint16_t qla1280_debounce_register(volatile uint16_t __iomem *);
547static request_t *qla1280_req_pkt(struct scsi_qla_host *);
548static int qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *,
549 unsigned int);
550static void qla1280_get_target_parameters(struct scsi_qla_host *,
551 struct scsi_device *);
552static int qla1280_set_target_parameters(struct scsi_qla_host *, int, int);
553
554
555static struct qla_driver_setup driver_setup;
556
557/*
558 * convert scsi data direction to request_t control flags
559 */
560static inline uint16_t
561qla1280_data_direction(struct scsi_cmnd *cmnd)
562{
563 switch(cmnd->sc_data_direction) {
564 case DMA_FROM_DEVICE:
565 return BIT_5;
566 case DMA_TO_DEVICE:
567 return BIT_6;
568 case DMA_BIDIRECTIONAL:
569 return BIT_5 | BIT_6;
570 /*
571 * We could BUG() on default here if one of the four cases aren't
572 * met, but then again if we receive something like that from the
573 * SCSI layer we have more serious problems. This shuts up GCC.
574 */
575 case DMA_NONE:
576 default:
577 return 0;
578 }
579}
580
581#if DEBUG_QLA1280
582static void __qla1280_print_scsi_cmd(struct scsi_cmnd * cmd);
583static void __qla1280_dump_buffer(char *, int);
584#endif
585
586
587/*
588 * insmod needs to find the variable and make it point to something
589 */
590#ifdef MODULE
591static char *qla1280;
592
593/* insmod qla1280 options=verbose" */
594module_param(qla1280, charp, 0);
595#else
596__setup("qla1280=", qla1280_setup);
597#endif
598
599
600/*
601 * We use the scsi_pointer structure that's included with each scsi_command
602 * to overlay our struct srb over it. qla1280_init() checks that a srb is not
603 * bigger than a scsi_pointer.
604 */
605
606#define CMD_SP(Cmnd) &Cmnd->SCp
607#define CMD_CDBLEN(Cmnd) Cmnd->cmd_len
608#define CMD_CDBP(Cmnd) Cmnd->cmnd
609#define CMD_SNSP(Cmnd) Cmnd->sense_buffer
610#define CMD_SNSLEN(Cmnd) sizeof(Cmnd->sense_buffer)
611#define CMD_RESULT(Cmnd) Cmnd->result
612#define CMD_HANDLE(Cmnd) Cmnd->host_scribble
613#if LINUX_VERSION_CODE < 0x020545
614#define CMD_REQUEST(Cmnd) Cmnd->request.cmd
615#else
616#define CMD_REQUEST(Cmnd) Cmnd->request->cmd
617#endif
618
619#define CMD_HOST(Cmnd) Cmnd->device->host
620#define SCSI_BUS_32(Cmnd) Cmnd->device->channel
621#define SCSI_TCN_32(Cmnd) Cmnd->device->id
622#define SCSI_LUN_32(Cmnd) Cmnd->device->lun
623
624
625/*****************************************/
626/* ISP Boards supported by this driver */
627/*****************************************/
628
629struct qla_boards {
630 unsigned char name[9]; /* Board ID String */
631 int numPorts; /* Number of SCSI ports */
632 unsigned short *fwcode; /* pointer to FW array */
633 unsigned short *fwlen; /* number of words in array */
634 unsigned short *fwstart; /* start address for F/W */
635 unsigned char *fwver; /* Ptr to F/W version array */
636};
637
638/* NOTE: the last argument in each entry is used to index ql1280_board_tbl */
639static struct pci_device_id qla1280_pci_tbl[] = {
640 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP12160,
641 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
642#ifdef CONFIG_SCSI_QLOGIC_1280_1040
643 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1020,
644 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
645#endif
646 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1080,
647 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
648 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1240,
649 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
650 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1280,
651 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
652 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP10160,
653 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
654 {0,}
655};
656MODULE_DEVICE_TABLE(pci, qla1280_pci_tbl);
657
658static struct qla_boards ql1280_board_tbl[] = {
659 /* Name , Number of ports, FW details */
660 {"QLA12160", 2, &fw12160i_code01[0], &fw12160i_length01,
661 &fw12160i_addr01, &fw12160i_version_str[0]},
662 {"QLA1040", 1, &risc_code01[0], &risc_code_length01,
663 &risc_code_addr01, &firmware_version[0]},
664 {"QLA1080", 1, &fw1280ei_code01[0], &fw1280ei_length01,
665 &fw1280ei_addr01, &fw1280ei_version_str[0]},
666 {"QLA1240", 2, &fw1280ei_code01[0], &fw1280ei_length01,
667 &fw1280ei_addr01, &fw1280ei_version_str[0]},
668 {"QLA1280", 2, &fw1280ei_code01[0], &fw1280ei_length01,
669 &fw1280ei_addr01, &fw1280ei_version_str[0]},
670 {"QLA10160", 1, &fw12160i_code01[0], &fw12160i_length01,
671 &fw12160i_addr01, &fw12160i_version_str[0]},
672 {" ", 0}
673};
674
675static int qla1280_verbose = 1;
676
677#if DEBUG_QLA1280
678static int ql_debug_level = 1;
679#define dprintk(level, format, a...) \
680 do { if (ql_debug_level >= level) printk(KERN_ERR format, ##a); } while(0)
681#define qla1280_dump_buffer(level, buf, size) \
682 if (ql_debug_level >= level) __qla1280_dump_buffer(buf, size)
683#define qla1280_print_scsi_cmd(level, cmd) \
684 if (ql_debug_level >= level) __qla1280_print_scsi_cmd(cmd)
685#else
686#define ql_debug_level 0
687#define dprintk(level, format, a...) do{}while(0)
688#define qla1280_dump_buffer(a, b, c) do{}while(0)
689#define qla1280_print_scsi_cmd(a, b) do{}while(0)
690#endif
691
692#define ENTER(x) dprintk(3, "qla1280 : Entering %s()\n", x);
693#define LEAVE(x) dprintk(3, "qla1280 : Leaving %s()\n", x);
694#define ENTER_INTR(x) dprintk(4, "qla1280 : Entering %s()\n", x);
695#define LEAVE_INTR(x) dprintk(4, "qla1280 : Leaving %s()\n", x);
696
697
698static int qla1280_read_nvram(struct scsi_qla_host *ha)
699{
700 uint16_t *wptr;
701 uint8_t chksum;
702 int cnt, i;
703 struct nvram *nv;
704
705 ENTER("qla1280_read_nvram");
706
707 if (driver_setup.no_nvram)
708 return 1;
709
710 printk(KERN_INFO "scsi(%ld): Reading NVRAM\n", ha->host_no);
711
712 wptr = (uint16_t *)&ha->nvram;
713 nv = &ha->nvram;
714 chksum = 0;
715 for (cnt = 0; cnt < 3; cnt++) {
716 *wptr = qla1280_get_nvram_word(ha, cnt);
717 chksum += *wptr & 0xff;
718 chksum += (*wptr >> 8) & 0xff;
719 wptr++;
720 }
721
722 if (nv->id0 != 'I' || nv->id1 != 'S' ||
723 nv->id2 != 'P' || nv->id3 != ' ' || nv->version < 1) {
724 dprintk(2, "Invalid nvram ID or version!\n");
725 chksum = 1;
726 } else {
727 for (; cnt < sizeof(struct nvram); cnt++) {
728 *wptr = qla1280_get_nvram_word(ha, cnt);
729 chksum += *wptr & 0xff;
730 chksum += (*wptr >> 8) & 0xff;
731 wptr++;
732 }
733 }
734
735 dprintk(3, "qla1280_read_nvram: NVRAM Magic ID= %c %c %c %02x"
736 " version %i\n", nv->id0, nv->id1, nv->id2, nv->id3,
737 nv->version);
738
739
740 if (chksum) {
741 if (!driver_setup.no_nvram)
742 printk(KERN_WARNING "scsi(%ld): Unable to identify or "
743 "validate NVRAM checksum, using default "
744 "settings\n", ha->host_no);
745 ha->nvram_valid = 0;
746 } else
747 ha->nvram_valid = 1;
748
749 /* The firmware interface is, um, interesting, in that the
750 * actual firmware image on the chip is little endian, thus,
751 * the process of taking that image to the CPU would end up
752 * little endian. However, the firmare interface requires it
753 * to be read a word (two bytes) at a time.
754 *
755 * The net result of this would be that the word (and
756 * doubleword) quantites in the firmware would be correct, but
757 * the bytes would be pairwise reversed. Since most of the
758 * firmware quantites are, in fact, bytes, we do an extra
759 * le16_to_cpu() in the firmware read routine.
760 *
761 * The upshot of all this is that the bytes in the firmware
762 * are in the correct places, but the 16 and 32 bit quantites
763 * are still in little endian format. We fix that up below by
764 * doing extra reverses on them */
765 nv->isp_parameter = cpu_to_le16(nv->isp_parameter);
766 nv->firmware_feature.w = cpu_to_le16(nv->firmware_feature.w);
767 for(i = 0; i < MAX_BUSES; i++) {
768 nv->bus[i].selection_timeout = cpu_to_le16(nv->bus[i].selection_timeout);
769 nv->bus[i].max_queue_depth = cpu_to_le16(nv->bus[i].max_queue_depth);
770 }
771 dprintk(1, "qla1280_read_nvram: Completed Reading NVRAM\n");
772 LEAVE("qla1280_read_nvram");
773
774 return chksum;
775}
776
777/**************************************************************************
778 * qla1280_info
779 * Return a string describing the driver.
780 **************************************************************************/
781static const char *
782qla1280_info(struct Scsi_Host *host)
783{
784 static char qla1280_scsi_name_buffer[125];
785 char *bp;
786 struct scsi_qla_host *ha;
787 struct qla_boards *bdp;
788
789 bp = &qla1280_scsi_name_buffer[0];
790 ha = (struct scsi_qla_host *)host->hostdata;
791 bdp = &ql1280_board_tbl[ha->devnum];
792 memset(bp, 0, sizeof(qla1280_scsi_name_buffer));
793
794 sprintf (bp,
795 "QLogic %s PCI to SCSI Host Adapter\n"
796 " Firmware version: %2d.%02d.%02d, Driver version %s",
797 &bdp->name[0], bdp->fwver[0], bdp->fwver[1], bdp->fwver[2],
798 QLA1280_VERSION);
799 return bp;
800}
801
802/**************************************************************************
803 * qla1200_queuecommand
804 * Queue a command to the controller.
805 *
806 * Note:
807 * The mid-level driver tries to ensures that queuecommand never gets invoked
808 * concurrently with itself or the interrupt handler (although the
809 * interrupt handler may call this routine as part of request-completion
810 * handling). Unfortunely, it sometimes calls the scheduler in interrupt
811 * context which is a big NO! NO!.
812 **************************************************************************/
813static int
814qla1280_queuecommand(struct scsi_cmnd *cmd, void (*fn)(struct scsi_cmnd *))
815{
816 struct Scsi_Host *host = cmd->device->host;
817 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
818 struct srb *sp = (struct srb *)&cmd->SCp;
819 int status;
820
821 cmd->scsi_done = fn;
822 sp->cmd = cmd;
823 sp->flags = 0;
824
825 qla1280_print_scsi_cmd(5, cmd);
826
827#ifdef QLA_64BIT_PTR
828 /*
829 * Using 64 bit commands if the PCI bridge doesn't support it is a
830 * bit wasteful, however this should really only happen if one's
831 * PCI controller is completely broken, like the BCM1250. For
832 * sane hardware this is not an issue.
833 */
834 status = qla1280_64bit_start_scsi(ha, sp);
835#else
836 status = qla1280_32bit_start_scsi(ha, sp);
837#endif
838 return status;
839}
840
841enum action {
842 ABORT_COMMAND,
843 ABORT_DEVICE,
844 DEVICE_RESET,
845 BUS_RESET,
846 ADAPTER_RESET,
847 FAIL
848};
849
850/* timer action for error action processor */
851static void qla1280_error_wait_timeout(unsigned long __data)
852{
853 struct scsi_cmnd *cmd = (struct scsi_cmnd *)__data;
854 struct srb *sp = (struct srb *)CMD_SP(cmd);
855
856 complete(sp->wait);
857}
858
859static void qla1280_mailbox_timeout(unsigned long __data)
860{
861 struct scsi_qla_host *ha = (struct scsi_qla_host *)__data;
862 struct device_reg __iomem *reg;
863 reg = ha->iobase;
864
865 ha->mailbox_out[0] = RD_REG_WORD(&reg->mailbox0);
866 printk(KERN_ERR "scsi(%ld): mailbox timed out, mailbox0 %04x, "
867 "ictrl %04x, istatus %04x\n", ha->host_no, ha->mailbox_out[0],
868 RD_REG_WORD(&reg->ictrl), RD_REG_WORD(&reg->istatus));
869 complete(ha->mailbox_wait);
870}
871
872/**************************************************************************
873 * qla1200_error_action
874 * The function will attempt to perform a specified error action and
875 * wait for the results (or time out).
876 *
877 * Input:
878 * cmd = Linux SCSI command packet of the command that cause the
879 * bus reset.
880 * action = error action to take (see action_t)
881 *
882 * Returns:
883 * SUCCESS or FAILED
884 *
885 * Note:
886 * Resetting the bus always succeeds - is has to, otherwise the
887 * kernel will panic! Try a surgical technique - sending a BUS
888 * DEVICE RESET message - on the offending target before pulling
889 * the SCSI bus reset line.
890 **************************************************************************/
891static int
892qla1280_error_action(struct scsi_cmnd *cmd, enum action action)
893{
894 struct scsi_qla_host *ha;
895 int bus, target, lun;
896 struct srb *sp;
897 uint16_t data;
898 unsigned char *handle;
899 int result, i;
900 DECLARE_COMPLETION(wait);
901 struct timer_list timer;
902
903 ha = (struct scsi_qla_host *)(CMD_HOST(cmd)->hostdata);
904
905 dprintk(4, "error_action %i, istatus 0x%04x\n", action,
906 RD_REG_WORD(&ha->iobase->istatus));
907
908 dprintk(4, "host_cmd 0x%04x, ictrl 0x%04x, jiffies %li\n",
909 RD_REG_WORD(&ha->iobase->host_cmd),
910 RD_REG_WORD(&ha->iobase->ictrl), jiffies);
911
912 ENTER("qla1280_error_action");
913 if (qla1280_verbose)
914 printk(KERN_INFO "scsi(%li): Resetting Cmnd=0x%p, "
915 "Handle=0x%p, action=0x%x\n",
916 ha->host_no, cmd, CMD_HANDLE(cmd), action);
917
918 if (cmd == NULL) {
919 printk(KERN_WARNING "(scsi?:?:?:?) Reset called with NULL "
920 "si_Cmnd pointer, failing.\n");
921 LEAVE("qla1280_error_action");
922 return FAILED;
923 }
924
925 ha = (struct scsi_qla_host *)cmd->device->host->hostdata;
926 sp = (struct srb *)CMD_SP(cmd);
927 handle = CMD_HANDLE(cmd);
928
929 /* Check for pending interrupts. */
930 data = qla1280_debounce_register(&ha->iobase->istatus);
931 /*
932 * The io_request_lock is held when the reset handler is called, hence
933 * the interrupt handler cannot be running in parallel as it also
934 * grabs the lock. /Jes
935 */
936 if (data & RISC_INT)
937 qla1280_isr(ha, &ha->done_q);
938
939 /*
940 * Determine the suggested action that the mid-level driver wants
941 * us to perform.
942 */
943 if (handle == (unsigned char *)INVALID_HANDLE || handle == NULL) {
944 if(action == ABORT_COMMAND) {
945 /* we never got this command */
946 printk(KERN_INFO "qla1280: Aborting a NULL handle\n");
947 return SUCCESS; /* no action - we don't have command */
948 }
949 } else {
950 sp->wait = &wait;
951 }
952
953 bus = SCSI_BUS_32(cmd);
954 target = SCSI_TCN_32(cmd);
955 lun = SCSI_LUN_32(cmd);
956
957 /* Overloading result. Here it means the success or fail of the
958 * *issue* of the action. When we return from the routine, it must
959 * mean the actual success or fail of the action */
960 result = FAILED;
961 switch (action) {
962 case FAIL:
963 break;
964
965 case ABORT_COMMAND:
966 if ((sp->flags & SRB_ABORT_PENDING)) {
967 printk(KERN_WARNING
968 "scsi(): Command has a pending abort "
969 "message - ABORT_PENDING.\n");
970 /* This should technically be impossible since we
971 * now wait for abort completion */
972 break;
973 }
974
975 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
976 if (sp == ha->outstanding_cmds[i]) {
977 dprintk(1, "qla1280: RISC aborting command\n");
978 if (qla1280_abort_command(ha, sp, i) == 0)
979 result = SUCCESS;
980 else {
981 /*
982 * Since we don't know what might
983 * have happend to the command, it
984 * is unsafe to remove it from the
985 * device's queue at this point.
986 * Wait and let the escalation
987 * process take care of it.
988 */
989 printk(KERN_WARNING
990 "scsi(%li:%i:%i:%i): Unable"
991 " to abort command!\n",
992 ha->host_no, bus, target, lun);
993 }
994 }
995 }
996 break;
997
998 case ABORT_DEVICE:
999 ha->flags.in_reset = 1;
1000 if (qla1280_verbose)
1001 printk(KERN_INFO
1002 "scsi(%ld:%d:%d:%d): Queueing abort device "
1003 "command.\n", ha->host_no, bus, target, lun);
1004 if (qla1280_abort_device(ha, bus, target, lun) == 0)
1005 result = SUCCESS;
1006 break;
1007
1008 case DEVICE_RESET:
1009 if (qla1280_verbose)
1010 printk(KERN_INFO
1011 "scsi(%ld:%d:%d:%d): Queueing device reset "
1012 "command.\n", ha->host_no, bus, target, lun);
1013 ha->flags.in_reset = 1;
1014 if (qla1280_device_reset(ha, bus, target) == 0)
1015 result = SUCCESS;
1016 break;
1017
1018 case BUS_RESET:
1019 if (qla1280_verbose)
1020 printk(KERN_INFO "qla1280(%ld:%d): Issuing BUS "
1021 "DEVICE RESET\n", ha->host_no, bus);
1022 ha->flags.in_reset = 1;
1023 if (qla1280_bus_reset(ha, bus == 0))
1024 result = SUCCESS;
1025
1026 break;
1027
1028 case ADAPTER_RESET:
1029 default:
1030 if (qla1280_verbose) {
1031 printk(KERN_INFO
1032 "scsi(%ld): Issued ADAPTER RESET\n",
1033 ha->host_no);
1034 printk(KERN_INFO "scsi(%ld): I/O processing will "
1035 "continue automatically\n", ha->host_no);
1036 }
1037 ha->flags.reset_active = 1;
1038 /*
1039 * We restarted all of the commands automatically, so the
1040 * mid-level code can expect completions momentitarily.
1041 */
1042 if (qla1280_abort_isp(ha) == 0)
1043 result = SUCCESS;
1044
1045 ha->flags.reset_active = 0;
1046 }
1047
1048 if (!list_empty(&ha->done_q))
1049 qla1280_done(ha);
1050 ha->flags.in_reset = 0;
1051
1052 /* If we didn't manage to issue the action, or we have no
1053 * command to wait for, exit here */
1054 if (result == FAILED || handle == NULL ||
1055 handle == (unsigned char *)INVALID_HANDLE) {
1056 /*
1057 * Clear completion queue to avoid qla1280_done() trying
1058 * to complete the command at a later stage after we
1059 * have exited the current context
1060 */
1061 sp->wait = NULL;
1062 goto leave;
1063 }
1064
1065 /* set up a timer just in case we're really jammed */
1066 init_timer(&timer);
1067 timer.expires = jiffies + 4*HZ;
1068 timer.data = (unsigned long)cmd;
1069 timer.function = qla1280_error_wait_timeout;
1070 add_timer(&timer);
1071
1072 /* wait for the action to complete (or the timer to expire) */
1073 spin_unlock_irq(HOST_LOCK);
1074 wait_for_completion(&wait);
1075 del_timer_sync(&timer);
1076 spin_lock_irq(HOST_LOCK);
1077 sp->wait = NULL;
1078
1079 /* the only action we might get a fail for is abort */
1080 if (action == ABORT_COMMAND) {
1081 if(sp->flags & SRB_ABORTED)
1082 result = SUCCESS;
1083 else
1084 result = FAILED;
1085 }
1086
1087 leave:
1088 dprintk(1, "RESET returning %d\n", result);
1089
1090 LEAVE("qla1280_error_action");
1091 return result;
1092}
1093
1094/**************************************************************************
1095 * qla1280_abort
1096 * Abort the specified SCSI command(s).
1097 **************************************************************************/
1098static int
1099qla1280_eh_abort(struct scsi_cmnd * cmd)
1100{
1101 return qla1280_error_action(cmd, ABORT_COMMAND);
1102}
1103
1104/**************************************************************************
1105 * qla1280_device_reset
1106 * Reset the specified SCSI device
1107 **************************************************************************/
1108static int
1109qla1280_eh_device_reset(struct scsi_cmnd *cmd)
1110{
1111 return qla1280_error_action(cmd, DEVICE_RESET);
1112}
1113
1114/**************************************************************************
1115 * qla1280_bus_reset
1116 * Reset the specified bus.
1117 **************************************************************************/
1118static int
1119qla1280_eh_bus_reset(struct scsi_cmnd *cmd)
1120{
1121 return qla1280_error_action(cmd, BUS_RESET);
1122}
1123
1124/**************************************************************************
1125 * qla1280_adapter_reset
1126 * Reset the specified adapter (both channels)
1127 **************************************************************************/
1128static int
1129qla1280_eh_adapter_reset(struct scsi_cmnd *cmd)
1130{
1131 return qla1280_error_action(cmd, ADAPTER_RESET);
1132}
1133
1134static int
1135qla1280_biosparam(struct scsi_device *sdev, struct block_device *bdev,
1136 sector_t capacity, int geom[])
1137{
1138 int heads, sectors, cylinders;
1139
1140 heads = 64;
1141 sectors = 32;
1142 cylinders = (unsigned long)capacity / (heads * sectors);
1143 if (cylinders > 1024) {
1144 heads = 255;
1145 sectors = 63;
1146 cylinders = (unsigned long)capacity / (heads * sectors);
1147 /* if (cylinders > 1023)
1148 cylinders = 1023; */
1149 }
1150
1151 geom[0] = heads;
1152 geom[1] = sectors;
1153 geom[2] = cylinders;
1154
1155 return 0;
1156}
1157
1158#if LINUX_VERSION_CODE < 0x020600
1159static int
1160qla1280_detect(Scsi_Host_Template *template)
1161{
1162 struct pci_device_id *id = &qla1280_pci_tbl[0];
1163 struct pci_dev *pdev = NULL;
1164 int num_hosts = 0;
1165
1166 if (sizeof(struct srb) > sizeof(Scsi_Pointer)) {
1167 printk(KERN_WARNING
1168 "qla1280: struct srb too big, aborting\n");
1169 return 0;
1170 }
1171
1172 if ((DMA_BIDIRECTIONAL != PCI_DMA_BIDIRECTIONAL) ||
1173 (DMA_TO_DEVICE != PCI_DMA_TODEVICE) ||
1174 (DMA_FROM_DEVICE != PCI_DMA_FROMDEVICE) ||
1175 (DMA_NONE != PCI_DMA_NONE)) {
1176 printk(KERN_WARNING
1177 "qla1280: dma direction bits don't match\n");
1178 return 0;
1179 }
1180
1181#ifdef MODULE
1182 /*
1183 * If we are called as a module, the qla1280 pointer may not be null
1184 * and it would point to our bootup string, just like on the lilo
1185 * command line. IF not NULL, then process this config string with
1186 * qla1280_setup
1187 *
1188 * Boot time Options
1189 * To add options at boot time add a line to your lilo.conf file like:
1190 * append="qla1280=verbose,max_tags:{{255,255,255,255},{255,255,255,255}}"
1191 * which will result in the first four devices on the first two
1192 * controllers being set to a tagged queue depth of 32.
1193 */
1194 if (qla1280)
1195 qla1280_setup(qla1280);
1196#endif
1197
1198 /* First Initialize QLA12160 on PCI Bus 1 Dev 2 */
1199 while ((pdev = pci_find_device(id->vendor, id->device, pdev))) {
1200 if (pdev->bus->number == 1 && PCI_SLOT(pdev->devfn) == 2) {
1201 if (!qla1280_probe_one(pdev, id))
1202 num_hosts++;
1203 }
1204 }
1205
1206 pdev = NULL;
1207 /* Try and find each different type of adapter we support */
1208 for (id = &qla1280_pci_tbl[0]; id->device; id++) {
1209 while ((pdev = pci_find_device(id->vendor, id->device, pdev))) {
1210 /*
1211 * skip QLA12160 already initialized on
1212 * PCI Bus 1 Dev 2 since we already initialized
1213 * and presented it
1214 */
1215 if (id->device == PCI_DEVICE_ID_QLOGIC_ISP12160 &&
1216 pdev->bus->number == 1 &&
1217 PCI_SLOT(pdev->devfn) == 2)
1218 continue;
1219
1220 if (!qla1280_probe_one(pdev, id))
1221 num_hosts++;
1222 }
1223 }
1224
1225 return num_hosts;
1226}
1227
1228/*
1229 * This looks a bit ugly as we could just pass down host to
1230 * qla1280_remove_one, but I want to keep qla1280_release purely a wrapper
1231 * around pci_driver::remove as used from 2.6 onwards.
1232 */
1233static int
1234qla1280_release(struct Scsi_Host *host)
1235{
1236 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
1237
1238 qla1280_remove_one(ha->pdev);
1239 return 0;
1240}
1241
1242static int
1243qla1280_biosparam_old(Disk * disk, kdev_t dev, int geom[])
1244{
1245 return qla1280_biosparam(disk->device, NULL, disk->capacity, geom);
1246}
1247#endif
1248
1249/**************************************************************************
1250 * qla1280_intr_handler
1251 * Handles the H/W interrupt
1252 **************************************************************************/
1253static irqreturn_t
1254qla1280_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
1255{
1256 struct scsi_qla_host *ha;
1257 struct device_reg __iomem *reg;
1258 u16 data;
1259 int handled = 0;
1260
1261 ENTER_INTR ("qla1280_intr_handler");
1262 ha = (struct scsi_qla_host *)dev_id;
1263
1264 spin_lock(HOST_LOCK);
1265
1266 ha->isr_count++;
1267 reg = ha->iobase;
1268
1269 WRT_REG_WORD(&reg->ictrl, 0); /* disable our interrupt. */
1270
1271 data = qla1280_debounce_register(&reg->istatus);
1272 /* Check for pending interrupts. */
1273 if (data & RISC_INT) {
1274 qla1280_isr(ha, &ha->done_q);
1275 handled = 1;
1276 }
1277 if (!list_empty(&ha->done_q))
1278 qla1280_done(ha);
1279
1280 spin_unlock(HOST_LOCK);
1281
1282 /* enable our interrupt. */
1283 WRT_REG_WORD(&reg->ictrl, (ISP_EN_INT | ISP_EN_RISC));
1284
1285 LEAVE_INTR("qla1280_intr_handler");
1286 return IRQ_RETVAL(handled);
1287}
1288
1289
1290static int
1291qla1280_set_target_parameters(struct scsi_qla_host *ha, int bus, int target)
1292{
1293 uint8_t mr;
1294 uint16_t mb[MAILBOX_REGISTER_COUNT];
1295 struct nvram *nv;
1296 int status;
1297
1298 nv = &ha->nvram;
1299
1300 mr = BIT_3 | BIT_2 | BIT_1 | BIT_0;
1301
1302 /* Set Target Parameters. */
1303 mb[0] = MBC_SET_TARGET_PARAMETERS;
1304 mb[1] = (uint16_t) (bus ? target | BIT_7 : target);
1305 mb[1] <<= 8;
1306
1307 mb[2] = (nv->bus[bus].target[target].parameter.c << 8);
1308
1309 if (IS_ISP1x160(ha)) {
1310 mb[2] |= nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr << 5;
1311 mb[3] = (nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8) |
1312 nv->bus[bus].target[target].sync_period;
1313 mb[6] = (nv->bus[bus].target[target].ppr_1x160.flags.ppr_options << 8) |
1314 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width;
1315 mr |= BIT_6;
1316 } else {
1317 mb[3] = (nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8) |
1318 nv->bus[bus].target[target].sync_period;
1319 }
1320
1321 status = qla1280_mailbox_command(ha, mr, &mb[0]);
1322
1323 if (status)
1324 printk(KERN_WARNING "scsi(%ld:%i:%i): "
1325 "qla1280_set_target_parameters() failed\n",
1326 ha->host_no, bus, target);
1327 return status;
1328}
1329
1330
1331/**************************************************************************
1332 * qla1280_slave_configure
1333 *
1334 * Description:
1335 * Determines the queue depth for a given device. There are two ways
1336 * a queue depth can be obtained for a tagged queueing device. One
1337 * way is the default queue depth which is determined by whether
1338 * If it is defined, then it is used
1339 * as the default queue depth. Otherwise, we use either 4 or 8 as the
1340 * default queue depth (dependent on the number of hardware SCBs).
1341 **************************************************************************/
1342static int
1343qla1280_slave_configure(struct scsi_device *device)
1344{
1345 struct scsi_qla_host *ha;
1346 int default_depth = 3;
1347 int bus = device->channel;
1348 int target = device->id;
1349 int status = 0;
1350 struct nvram *nv;
1351 unsigned long flags;
1352
1353 ha = (struct scsi_qla_host *)device->host->hostdata;
1354 nv = &ha->nvram;
1355
1356 if (qla1280_check_for_dead_scsi_bus(ha, bus))
1357 return 1;
1358
1359 if (device->tagged_supported &&
1360 (ha->bus_settings[bus].qtag_enables & (BIT_0 << target))) {
1361 scsi_adjust_queue_depth(device, MSG_ORDERED_TAG,
1362 ha->bus_settings[bus].hiwat);
1363 } else {
1364 scsi_adjust_queue_depth(device, 0, default_depth);
1365 }
1366
1367#if LINUX_VERSION_CODE > 0x020500
1368 nv->bus[bus].target[target].parameter.f.enable_sync = device->sdtr;
1369 nv->bus[bus].target[target].parameter.f.enable_wide = device->wdtr;
1370 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = device->ppr;
1371#endif
1372
1373 if (driver_setup.no_sync ||
1374 (driver_setup.sync_mask &&
1375 (~driver_setup.sync_mask & (1 << target))))
1376 nv->bus[bus].target[target].parameter.f.enable_sync = 0;
1377 if (driver_setup.no_wide ||
1378 (driver_setup.wide_mask &&
1379 (~driver_setup.wide_mask & (1 << target))))
1380 nv->bus[bus].target[target].parameter.f.enable_wide = 0;
1381 if (IS_ISP1x160(ha)) {
1382 if (driver_setup.no_ppr ||
1383 (driver_setup.ppr_mask &&
1384 (~driver_setup.ppr_mask & (1 << target))))
1385 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 0;
1386 }
1387
1388 spin_lock_irqsave(HOST_LOCK, flags);
1389 if (nv->bus[bus].target[target].parameter.f.enable_sync)
1390 status = qla1280_set_target_parameters(ha, bus, target);
1391 qla1280_get_target_parameters(ha, device);
1392 spin_unlock_irqrestore(HOST_LOCK, flags);
1393 return status;
1394}
1395
1396#if LINUX_VERSION_CODE < 0x020545
1397/**************************************************************************
1398 * qla1280_select_queue_depth
1399 *
1400 * Sets the queue depth for each SCSI device hanging off the input
1401 * host adapter. We use a queue depth of 2 for devices that do not
1402 * support tagged queueing.
1403 **************************************************************************/
1404static void
1405qla1280_select_queue_depth(struct Scsi_Host *host, struct scsi_device *sdev_q)
1406{
1407 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
1408 struct scsi_device *sdev;
1409
1410 ENTER("qla1280_select_queue_depth");
1411 for (sdev = sdev_q; sdev; sdev = sdev->next)
1412 if (sdev->host == host)
1413 qla1280_slave_configure(sdev);
1414
1415 if (sdev_q)
1416 qla1280_check_for_dead_scsi_bus(ha, sdev_q->channel);
1417 LEAVE("qla1280_select_queue_depth");
1418}
1419#endif
1420
1421/*
1422 * qla1280_done
1423 * Process completed commands.
1424 *
1425 * Input:
1426 * ha = adapter block pointer.
1427 * done_q = done queue.
1428 */
1429static void
1430qla1280_done(struct scsi_qla_host *ha)
1431{
1432 struct srb *sp;
1433 struct list_head *done_q;
1434 int bus, target, lun;
1435 struct scsi_cmnd *cmd;
1436
1437 ENTER("qla1280_done");
1438
1439 done_q = &ha->done_q;
1440
1441 while (!list_empty(done_q)) {
1442 sp = list_entry(done_q->next, struct srb, list);
1443
1444 list_del(&sp->list);
1445
1446 cmd = sp->cmd;
1447 bus = SCSI_BUS_32(cmd);
1448 target = SCSI_TCN_32(cmd);
1449 lun = SCSI_LUN_32(cmd);
1450
1451 switch ((CMD_RESULT(cmd) >> 16)) {
1452 case DID_RESET:
1453 /* Issue marker command. */
1454 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
1455 break;
1456 case DID_ABORT:
1457 sp->flags &= ~SRB_ABORT_PENDING;
1458 sp->flags |= SRB_ABORTED;
1459 if (sp->flags & SRB_TIMEOUT)
1460 CMD_RESULT(sp->cmd) = DID_TIME_OUT << 16;
1461 break;
1462 default:
1463 break;
1464 }
1465
1466 /* Release memory used for this I/O */
1467 if (cmd->use_sg) {
1468 pci_unmap_sg(ha->pdev, cmd->request_buffer,
1469 cmd->use_sg, cmd->sc_data_direction);
1470 } else if (cmd->request_bufflen) {
1471 pci_unmap_single(ha->pdev, sp->saved_dma_handle,
1472 cmd->request_bufflen,
1473 cmd->sc_data_direction);
1474 }
1475
1476 /* Call the mid-level driver interrupt handler */
1477 CMD_HANDLE(sp->cmd) = (unsigned char *)INVALID_HANDLE;
1478 ha->actthreads--;
1479
1480#if LINUX_VERSION_CODE < 0x020500
1481 if (cmd->cmnd[0] == INQUIRY)
1482 qla1280_get_target_options(cmd, ha);
1483#endif
1484 (*(cmd)->scsi_done)(cmd);
1485
1486 if(sp->wait != NULL)
1487 complete(sp->wait);
1488 }
1489 LEAVE("qla1280_done");
1490}
1491
1492/*
1493 * Translates a ISP error to a Linux SCSI error
1494 */
1495static int
1496qla1280_return_status(struct response * sts, struct scsi_cmnd *cp)
1497{
1498 int host_status = DID_ERROR;
1499 uint16_t comp_status = le16_to_cpu(sts->comp_status);
1500 uint16_t state_flags = le16_to_cpu(sts->state_flags);
1501 uint16_t residual_length = le16_to_cpu(sts->residual_length);
1502 uint16_t scsi_status = le16_to_cpu(sts->scsi_status);
1503#if DEBUG_QLA1280_INTR
1504 static char *reason[] = {
1505 "DID_OK",
1506 "DID_NO_CONNECT",
1507 "DID_BUS_BUSY",
1508 "DID_TIME_OUT",
1509 "DID_BAD_TARGET",
1510 "DID_ABORT",
1511 "DID_PARITY",
1512 "DID_ERROR",
1513 "DID_RESET",
1514 "DID_BAD_INTR"
1515 };
1516#endif /* DEBUG_QLA1280_INTR */
1517
1518 ENTER("qla1280_return_status");
1519
1520#if DEBUG_QLA1280_INTR
1521 /*
1522 dprintk(1, "qla1280_return_status: compl status = 0x%04x\n",
1523 comp_status);
1524 */
1525#endif
1526
1527 switch (comp_status) {
1528 case CS_COMPLETE:
1529 host_status = DID_OK;
1530 break;
1531
1532 case CS_INCOMPLETE:
1533 if (!(state_flags & SF_GOT_BUS))
1534 host_status = DID_NO_CONNECT;
1535 else if (!(state_flags & SF_GOT_TARGET))
1536 host_status = DID_BAD_TARGET;
1537 else if (!(state_flags & SF_SENT_CDB))
1538 host_status = DID_ERROR;
1539 else if (!(state_flags & SF_TRANSFERRED_DATA))
1540 host_status = DID_ERROR;
1541 else if (!(state_flags & SF_GOT_STATUS))
1542 host_status = DID_ERROR;
1543 else if (!(state_flags & SF_GOT_SENSE))
1544 host_status = DID_ERROR;
1545 break;
1546
1547 case CS_RESET:
1548 host_status = DID_RESET;
1549 break;
1550
1551 case CS_ABORTED:
1552 host_status = DID_ABORT;
1553 break;
1554
1555 case CS_TIMEOUT:
1556 host_status = DID_TIME_OUT;
1557 break;
1558
1559 case CS_DATA_OVERRUN:
1560 dprintk(2, "Data overrun 0x%x\n", residual_length);
1561 dprintk(2, "qla1280_isr: response packet data\n");
1562 qla1280_dump_buffer(2, (char *)sts, RESPONSE_ENTRY_SIZE);
1563 host_status = DID_ERROR;
1564 break;
1565
1566 case CS_DATA_UNDERRUN:
1567 if ((cp->request_bufflen - residual_length) <
1568 cp->underflow) {
1569 printk(KERN_WARNING
1570 "scsi: Underflow detected - retrying "
1571 "command.\n");
1572 host_status = DID_ERROR;
1573 } else
1574 host_status = DID_OK;
1575 break;
1576
1577 default:
1578 host_status = DID_ERROR;
1579 break;
1580 }
1581
1582#if DEBUG_QLA1280_INTR
1583 dprintk(1, "qla1280 ISP status: host status (%s) scsi status %x\n",
1584 reason[host_status], scsi_status);
1585#endif
1586
1587 LEAVE("qla1280_return_status");
1588
1589 return (scsi_status & 0xff) | (host_status << 16);
1590}
1591
1592/****************************************************************************/
1593/* QLogic ISP1280 Hardware Support Functions. */
1594/****************************************************************************/
1595
1596 /*
1597 * qla2100_enable_intrs
1598 * qla2100_disable_intrs
1599 *
1600 * Input:
1601 * ha = adapter block pointer.
1602 *
1603 * Returns:
1604 * None
1605 */
1606static inline void
1607qla1280_enable_intrs(struct scsi_qla_host *ha)
1608{
1609 struct device_reg __iomem *reg;
1610
1611 reg = ha->iobase;
1612 /* enable risc and host interrupts */
1613 WRT_REG_WORD(&reg->ictrl, (ISP_EN_INT | ISP_EN_RISC));
1614 RD_REG_WORD(&reg->ictrl); /* PCI Posted Write flush */
1615 ha->flags.ints_enabled = 1;
1616}
1617
1618static inline void
1619qla1280_disable_intrs(struct scsi_qla_host *ha)
1620{
1621 struct device_reg __iomem *reg;
1622
1623 reg = ha->iobase;
1624 /* disable risc and host interrupts */
1625 WRT_REG_WORD(&reg->ictrl, 0);
1626 RD_REG_WORD(&reg->ictrl); /* PCI Posted Write flush */
1627 ha->flags.ints_enabled = 0;
1628}
1629
1630/*
1631 * qla1280_initialize_adapter
1632 * Initialize board.
1633 *
1634 * Input:
1635 * ha = adapter block pointer.
1636 *
1637 * Returns:
1638 * 0 = success
1639 */
1640static int __devinit
1641qla1280_initialize_adapter(struct scsi_qla_host *ha)
1642{
1643 struct device_reg __iomem *reg;
1644 int status;
1645 int bus;
1646#if LINUX_VERSION_CODE > 0x020500
1647 unsigned long flags;
1648#endif
1649
1650 ENTER("qla1280_initialize_adapter");
1651
1652 /* Clear adapter flags. */
1653 ha->flags.online = 0;
1654 ha->flags.disable_host_adapter = 0;
1655 ha->flags.reset_active = 0;
1656 ha->flags.abort_isp_active = 0;
1657
1658 ha->flags.ints_enabled = 0;
1659#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
1660 if (ia64_platform_is("sn2")) {
1661 printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA "
1662 "dual channel lockup workaround\n", ha->host_no);
1663 ha->flags.use_pci_vchannel = 1;
1664 driver_setup.no_nvram = 1;
1665 }
1666#endif
1667
1668 /* TODO: implement support for the 1040 nvram format */
1669 if (IS_ISP1040(ha))
1670 driver_setup.no_nvram = 1;
1671
1672 dprintk(1, "Configure PCI space for adapter...\n");
1673
1674 reg = ha->iobase;
1675
1676 /* Insure mailbox registers are free. */
1677 WRT_REG_WORD(&reg->semaphore, 0);
1678 WRT_REG_WORD(&reg->host_cmd, HC_CLR_RISC_INT);
1679 WRT_REG_WORD(&reg->host_cmd, HC_CLR_HOST_INT);
1680 RD_REG_WORD(&reg->host_cmd);
1681
1682 if (qla1280_read_nvram(ha)) {
1683 dprintk(2, "qla1280_initialize_adapter: failed to read "
1684 "NVRAM\n");
1685 }
1686
1687#if LINUX_VERSION_CODE >= 0x020500
1688 /*
1689 * It's necessary to grab the spin here as qla1280_mailbox_command
1690 * needs to be able to drop the lock unconditionally to wait
1691 * for completion.
1692 * In 2.4 ->detect is called with the io_request_lock held.
1693 */
1694 spin_lock_irqsave(HOST_LOCK, flags);
1695#endif
1696
1697 status = qla1280_load_firmware(ha);
1698 if (status) {
1699 printk(KERN_ERR "scsi(%li): initialize: pci probe failed!\n",
1700 ha->host_no);
1701 goto out;
1702 }
1703
1704 /* Setup adapter based on NVRAM parameters. */
1705 dprintk(1, "scsi(%ld): Configure NVRAM parameters\n", ha->host_no);
1706 qla1280_nvram_config(ha);
1707
1708 if (ha->flags.disable_host_adapter) {
1709 status = 1;
1710 goto out;
1711 }
1712
1713 status = qla1280_init_rings(ha);
1714 if (status)
1715 goto out;
1716
1717 /* Issue SCSI reset, if we can't reset twice then bus is dead */
1718 for (bus = 0; bus < ha->ports; bus++) {
1719 if (!ha->bus_settings[bus].disable_scsi_reset &&
1720 qla1280_bus_reset(ha, bus) &&
1721 qla1280_bus_reset(ha, bus))
1722 ha->bus_settings[bus].scsi_bus_dead = 1;
1723 }
1724
1725 ha->flags.online = 1;
1726 out:
1727#if LINUX_VERSION_CODE >= 0x020500
1728 spin_unlock_irqrestore(HOST_LOCK, flags);
1729#endif
1730 if (status)
1731 dprintk(2, "qla1280_initialize_adapter: **** FAILED ****\n");
1732
1733 LEAVE("qla1280_initialize_adapter");
1734 return status;
1735}
1736
1737
1738/*
1739 * ISP Firmware Test
1740 * Checks if present version of RISC firmware is older than
1741 * driver firmware.
1742 *
1743 * Input:
1744 * ha = adapter block pointer.
1745 *
1746 * Returns:
1747 * 0 = firmware does not need to be loaded.
1748 */
1749static int
1750qla1280_isp_firmware(struct scsi_qla_host *ha)
1751{
1752 struct nvram *nv = (struct nvram *) ha->response_ring;
1753 int status = 0; /* dg 2/27 always loads RISC */
1754 uint16_t mb[MAILBOX_REGISTER_COUNT];
1755
1756 ENTER("qla1280_isp_firmware");
1757
1758 dprintk(1, "scsi(%li): Determining if RISC is loaded\n", ha->host_no);
1759
1760 /* Bad NVRAM data, load RISC code. */
1761 if (!ha->nvram_valid) {
1762 ha->flags.disable_risc_code_load = 0;
1763 } else
1764 ha->flags.disable_risc_code_load =
1765 nv->cntr_flags_1.disable_loading_risc_code;
1766
1767 if (ha->flags.disable_risc_code_load) {
1768 dprintk(3, "qla1280_isp_firmware: Telling RISC to verify "
1769 "checksum of loaded BIOS code.\n");
1770
1771 /* Verify checksum of loaded RISC code. */
1772 mb[0] = MBC_VERIFY_CHECKSUM;
1773 /* mb[1] = ql12_risc_code_addr01; */
1774 mb[1] = *ql1280_board_tbl[ha->devnum].fwstart;
1775
1776 if (!(status =
1777 qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]))) {
1778 /* Start firmware execution. */
1779 dprintk(3, "qla1280_isp_firmware: Startng F/W "
1780 "execution.\n");
1781
1782 mb[0] = MBC_EXECUTE_FIRMWARE;
1783 /* mb[1] = ql12_risc_code_addr01; */
1784 mb[1] = *ql1280_board_tbl[ha->devnum].fwstart;
1785 qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
1786 } else
1787 printk(KERN_INFO "qla1280: RISC checksum failed.\n");
1788 } else {
1789 dprintk(1, "qla1280: NVRAM configured to load RISC load.\n");
1790 status = 1;
1791 }
1792
1793 if (status)
1794 dprintk(2, "qla1280_isp_firmware: **** Load RISC code ****\n");
1795
1796 LEAVE("qla1280_isp_firmware");
1797 return status;
1798}
1799
1800/*
1801 * Chip diagnostics
1802 * Test chip for proper operation.
1803 *
1804 * Input:
1805 * ha = adapter block pointer.
1806 *
1807 * Returns:
1808 * 0 = success.
1809 */
1810static int
1811qla1280_chip_diag(struct scsi_qla_host *ha)
1812{
1813 uint16_t mb[MAILBOX_REGISTER_COUNT];
1814 struct device_reg __iomem *reg = ha->iobase;
1815 int status = 0;
1816 int cnt;
1817 uint16_t data;
1818 dprintk(3, "qla1280_chip_diag: testing device at 0x%p \n", &reg->id_l);
1819
1820 dprintk(1, "scsi(%ld): Verifying chip\n", ha->host_no);
1821
1822 /* Soft reset chip and wait for it to finish. */
1823 WRT_REG_WORD(&reg->ictrl, ISP_RESET);
1824
1825 /*
1826 * We can't do a traditional PCI write flush here by reading
1827 * back the register. The card will not respond once the reset
1828 * is in action and we end up with a machine check exception
1829 * instead. Nothing to do but wait and hope for the best.
1830 * A portable pci_write_flush(pdev) call would be very useful here.
1831 */
1832 udelay(20);
1833 data = qla1280_debounce_register(&reg->ictrl);
1834 /*
1835 * Yet another QLogic gem ;-(
1836 */
1837 for (cnt = 1000000; cnt && data & ISP_RESET; cnt--) {
1838 udelay(5);
1839 data = RD_REG_WORD(&reg->ictrl);
1840 }
1841
1842 if (!cnt)
1843 goto fail;
1844
1845 /* Reset register cleared by chip reset. */
1846 dprintk(3, "qla1280_chip_diag: reset register cleared by chip reset\n");
1847
1848 WRT_REG_WORD(&reg->cfg_1, 0);
1849
1850 /* Reset RISC and disable BIOS which
1851 allows RISC to execute out of RAM. */
1852 WRT_REG_WORD(&reg->host_cmd, HC_RESET_RISC |
1853 HC_RELEASE_RISC | HC_DISABLE_BIOS);
1854
1855 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
1856 data = qla1280_debounce_register(&reg->mailbox0);
1857
1858 /*
1859 * I *LOVE* this code!
1860 */
1861 for (cnt = 1000000; cnt && data == MBS_BUSY; cnt--) {
1862 udelay(5);
1863 data = RD_REG_WORD(&reg->mailbox0);
1864 }
1865
1866 if (!cnt)
1867 goto fail;
1868
1869 /* Check product ID of chip */
1870 dprintk(3, "qla1280_chip_diag: Checking product ID of chip\n");
1871
1872 if (RD_REG_WORD(&reg->mailbox1) != PROD_ID_1 ||
1873 (RD_REG_WORD(&reg->mailbox2) != PROD_ID_2 &&
1874 RD_REG_WORD(&reg->mailbox2) != PROD_ID_2a) ||
1875 RD_REG_WORD(&reg->mailbox3) != PROD_ID_3 ||
1876 RD_REG_WORD(&reg->mailbox4) != PROD_ID_4) {
1877 printk(KERN_INFO "qla1280: Wrong product ID = "
1878 "0x%x,0x%x,0x%x,0x%x\n",
1879 RD_REG_WORD(&reg->mailbox1),
1880 RD_REG_WORD(&reg->mailbox2),
1881 RD_REG_WORD(&reg->mailbox3),
1882 RD_REG_WORD(&reg->mailbox4));
1883 goto fail;
1884 }
1885
1886 /*
1887 * Enable ints early!!!
1888 */
1889 qla1280_enable_intrs(ha);
1890
1891 dprintk(1, "qla1280_chip_diag: Checking mailboxes of chip\n");
1892 /* Wrap Incoming Mailboxes Test. */
1893 mb[0] = MBC_MAILBOX_REGISTER_TEST;
1894 mb[1] = 0xAAAA;
1895 mb[2] = 0x5555;
1896 mb[3] = 0xAA55;
1897 mb[4] = 0x55AA;
1898 mb[5] = 0xA5A5;
1899 mb[6] = 0x5A5A;
1900 mb[7] = 0x2525;
1901
1902 status = qla1280_mailbox_command(ha, 0xff, mb);
1903 if (status)
1904 goto fail;
1905
1906 if (mb[1] != 0xAAAA || mb[2] != 0x5555 || mb[3] != 0xAA55 ||
1907 mb[4] != 0x55AA || mb[5] != 0xA5A5 || mb[6] != 0x5A5A ||
1908 mb[7] != 0x2525) {
1909 printk(KERN_INFO "qla1280: Failed mbox check\n");
1910 goto fail;
1911 }
1912
1913 dprintk(3, "qla1280_chip_diag: exiting normally\n");
1914 return 0;
1915 fail:
1916 dprintk(2, "qla1280_chip_diag: **** FAILED ****\n");
1917 return status;
1918}
1919
1920static int
1921qla1280_load_firmware_pio(struct scsi_qla_host *ha)
1922{
1923 uint16_t risc_address, *risc_code_address, risc_code_size;
1924 uint16_t mb[MAILBOX_REGISTER_COUNT], i;
1925 int err;
1926
1927 /* Load RISC code. */
1928 risc_address = *ql1280_board_tbl[ha->devnum].fwstart;
1929 risc_code_address = ql1280_board_tbl[ha->devnum].fwcode;
1930 risc_code_size = *ql1280_board_tbl[ha->devnum].fwlen;
1931
1932 for (i = 0; i < risc_code_size; i++) {
1933 mb[0] = MBC_WRITE_RAM_WORD;
1934 mb[1] = risc_address + i;
1935 mb[2] = risc_code_address[i];
1936
1937 err = qla1280_mailbox_command(ha, BIT_0 | BIT_1 | BIT_2, mb);
1938 if (err) {
1939 printk(KERN_ERR "scsi(%li): Failed to load firmware\n",
1940 ha->host_no);
1941 return err;
1942 }
1943 }
1944
1945 return 0;
1946}
1947
1948#define DUMP_IT_BACK 0 /* for debug of RISC loading */
1949static int
1950qla1280_load_firmware_dma(struct scsi_qla_host *ha)
1951{
1952 uint16_t risc_address, *risc_code_address, risc_code_size;
1953 uint16_t mb[MAILBOX_REGISTER_COUNT], cnt;
1954 int err = 0, num, i;
1955#if DUMP_IT_BACK
1956 uint8_t *sp, *tbuf;
1957 dma_addr_t p_tbuf;
1958
1959 tbuf = pci_alloc_consistent(ha->pdev, 8000, &p_tbuf);
1960 if (!tbuf)
1961 return -ENOMEM;
1962#endif
1963
1964 /* Load RISC code. */
1965 risc_address = *ql1280_board_tbl[ha->devnum].fwstart;
1966 risc_code_address = ql1280_board_tbl[ha->devnum].fwcode;
1967 risc_code_size = *ql1280_board_tbl[ha->devnum].fwlen;
1968
1969 dprintk(1, "%s: DMA RISC code (%i) words\n",
1970 __FUNCTION__, risc_code_size);
1971
1972 num = 0;
1973 while (risc_code_size > 0) {
1974 int warn __attribute__((unused)) = 0;
1975
1976 cnt = 2000 >> 1;
1977
1978 if (cnt > risc_code_size)
1979 cnt = risc_code_size;
1980
1981 dprintk(2, "qla1280_setup_chip: loading risc @ =(0x%p),"
1982 "%d,%d(0x%x)\n",
1983 risc_code_address, cnt, num, risc_address);
1984 for(i = 0; i < cnt; i++)
1985 ((uint16_t *)ha->request_ring)[i] =
1986 cpu_to_le16(risc_code_address[i]);
1987
1988 mb[0] = MBC_LOAD_RAM;
1989 mb[1] = risc_address;
1990 mb[4] = cnt;
1991 mb[3] = ha->request_dma & 0xffff;
1992 mb[2] = (ha->request_dma >> 16) & 0xffff;
1993 mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff;
1994 mb[6] = pci_dma_hi32(ha->request_dma) >> 16;
1995 dprintk(2, "%s: op=%d 0x%p = 0x%4x,0x%4x,0x%4x,0x%4x\n",
1996 __FUNCTION__, mb[0],
1997 (void *)(long)ha->request_dma,
1998 mb[6], mb[7], mb[2], mb[3]);
1999 err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 |
2000 BIT_1 | BIT_0, mb);
2001 if (err) {
2002 printk(KERN_ERR "scsi(%li): Failed to load partial "
2003 "segment of f\n", ha->host_no);
2004 goto out;
2005 }
2006
2007#if DUMP_IT_BACK
2008 mb[0] = MBC_DUMP_RAM;
2009 mb[1] = risc_address;
2010 mb[4] = cnt;
2011 mb[3] = p_tbuf & 0xffff;
2012 mb[2] = (p_tbuf >> 16) & 0xffff;
2013 mb[7] = pci_dma_hi32(p_tbuf) & 0xffff;
2014 mb[6] = pci_dma_hi32(p_tbuf) >> 16;
2015
2016 err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 |
2017 BIT_1 | BIT_0, mb);
2018 if (err) {
2019 printk(KERN_ERR
2020 "Failed to dump partial segment of f/w\n");
2021 goto out;
2022 }
2023 sp = (uint8_t *)ha->request_ring;
2024 for (i = 0; i < (cnt << 1); i++) {
2025 if (tbuf[i] != sp[i] && warn++ < 10) {
2026 printk(KERN_ERR "%s: FW compare error @ "
2027 "byte(0x%x) loop#=%x\n",
2028 __FUNCTION__, i, num);
2029 printk(KERN_ERR "%s: FWbyte=%x "
2030 "FWfromChip=%x\n",
2031 __FUNCTION__, sp[i], tbuf[i]);
2032 /*break; */
2033 }
2034 }
2035#endif
2036 risc_address += cnt;
2037 risc_code_size = risc_code_size - cnt;
2038 risc_code_address = risc_code_address + cnt;
2039 num++;
2040 }
2041
2042 out:
2043#if DUMP_IT_BACK
2044 pci_free_consistent(ha->pdev, 8000, tbuf, p_tbuf);
2045#endif
2046 return err;
2047}
2048
2049static int
2050qla1280_start_firmware(struct scsi_qla_host *ha)
2051{
2052 uint16_t mb[MAILBOX_REGISTER_COUNT];
2053 int err;
2054
2055 dprintk(1, "%s: Verifying checksum of loaded RISC code.\n",
2056 __FUNCTION__);
2057
2058 /* Verify checksum of loaded RISC code. */
2059 mb[0] = MBC_VERIFY_CHECKSUM;
2060 /* mb[1] = ql12_risc_code_addr01; */
2061 mb[1] = *ql1280_board_tbl[ha->devnum].fwstart;
2062 err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2063 if (err) {
2064 printk(KERN_ERR "scsi(%li): Failed checksum\n", ha->host_no);
2065 return err;
2066 }
2067
2068 /* Start firmware execution. */
2069 dprintk(1, "%s: start firmware running.\n", __FUNCTION__);
2070 mb[0] = MBC_EXECUTE_FIRMWARE;
2071 mb[1] = *ql1280_board_tbl[ha->devnum].fwstart;
2072 err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2073 if (err) {
2074 printk(KERN_ERR "scsi(%li): Failed to start firmware\n",
2075 ha->host_no);
2076 }
2077
2078 return err;
2079}
2080
2081static int
2082qla1280_load_firmware(struct scsi_qla_host *ha)
2083{
2084 int err = -ENODEV;
2085
2086 /* If firmware needs to be loaded */
2087 if (!qla1280_isp_firmware(ha)) {
2088 printk(KERN_ERR "scsi(%li): isp_firmware() failed!\n",
2089 ha->host_no);
2090 goto out;
2091 }
2092
2093 err = qla1280_chip_diag(ha);
2094 if (err)
2095 goto out;
2096 if (IS_ISP1040(ha))
2097 err = qla1280_load_firmware_pio(ha);
2098 else
2099 err = qla1280_load_firmware_dma(ha);
2100 if (err)
2101 goto out;
2102 err = qla1280_start_firmware(ha);
2103 out:
2104 return err;
2105}
2106
2107/*
2108 * Initialize rings
2109 *
2110 * Input:
2111 * ha = adapter block pointer.
2112 * ha->request_ring = request ring virtual address
2113 * ha->response_ring = response ring virtual address
2114 * ha->request_dma = request ring physical address
2115 * ha->response_dma = response ring physical address
2116 *
2117 * Returns:
2118 * 0 = success.
2119 */
2120static int
2121qla1280_init_rings(struct scsi_qla_host *ha)
2122{
2123 uint16_t mb[MAILBOX_REGISTER_COUNT];
2124 int status = 0;
2125
2126 ENTER("qla1280_init_rings");
2127
2128 /* Clear outstanding commands array. */
2129 memset(ha->outstanding_cmds, 0,
2130 sizeof(struct srb *) * MAX_OUTSTANDING_COMMANDS);
2131
2132 /* Initialize request queue. */
2133 ha->request_ring_ptr = ha->request_ring;
2134 ha->req_ring_index = 0;
2135 ha->req_q_cnt = REQUEST_ENTRY_CNT;
2136 /* mb[0] = MBC_INIT_REQUEST_QUEUE; */
2137 mb[0] = MBC_INIT_REQUEST_QUEUE_A64;
2138 mb[1] = REQUEST_ENTRY_CNT;
2139 mb[3] = ha->request_dma & 0xffff;
2140 mb[2] = (ha->request_dma >> 16) & 0xffff;
2141 mb[4] = 0;
2142 mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff;
2143 mb[6] = pci_dma_hi32(ha->request_dma) >> 16;
2144 if (!(status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_4 |
2145 BIT_3 | BIT_2 | BIT_1 | BIT_0,
2146 &mb[0]))) {
2147 /* Initialize response queue. */
2148 ha->response_ring_ptr = ha->response_ring;
2149 ha->rsp_ring_index = 0;
2150 /* mb[0] = MBC_INIT_RESPONSE_QUEUE; */
2151 mb[0] = MBC_INIT_RESPONSE_QUEUE_A64;
2152 mb[1] = RESPONSE_ENTRY_CNT;
2153 mb[3] = ha->response_dma & 0xffff;
2154 mb[2] = (ha->response_dma >> 16) & 0xffff;
2155 mb[5] = 0;
2156 mb[7] = pci_dma_hi32(ha->response_dma) & 0xffff;
2157 mb[6] = pci_dma_hi32(ha->response_dma) >> 16;
2158 status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_5 |
2159 BIT_3 | BIT_2 | BIT_1 | BIT_0,
2160 &mb[0]);
2161 }
2162
2163 if (status)
2164 dprintk(2, "qla1280_init_rings: **** FAILED ****\n");
2165
2166 LEAVE("qla1280_init_rings");
2167 return status;
2168}
2169
2170static void
2171qla1280_print_settings(struct nvram *nv)
2172{
2173 dprintk(1, "qla1280 : initiator scsi id bus[0]=%d\n",
2174 nv->bus[0].config_1.initiator_id);
2175 dprintk(1, "qla1280 : initiator scsi id bus[1]=%d\n",
2176 nv->bus[1].config_1.initiator_id);
2177
2178 dprintk(1, "qla1280 : bus reset delay[0]=%d\n",
2179 nv->bus[0].bus_reset_delay);
2180 dprintk(1, "qla1280 : bus reset delay[1]=%d\n",
2181 nv->bus[1].bus_reset_delay);
2182
2183 dprintk(1, "qla1280 : retry count[0]=%d\n", nv->bus[0].retry_count);
2184 dprintk(1, "qla1280 : retry delay[0]=%d\n", nv->bus[0].retry_delay);
2185 dprintk(1, "qla1280 : retry count[1]=%d\n", nv->bus[1].retry_count);
2186 dprintk(1, "qla1280 : retry delay[1]=%d\n", nv->bus[1].retry_delay);
2187
2188 dprintk(1, "qla1280 : async data setup time[0]=%d\n",
2189 nv->bus[0].config_2.async_data_setup_time);
2190 dprintk(1, "qla1280 : async data setup time[1]=%d\n",
2191 nv->bus[1].config_2.async_data_setup_time);
2192
2193 dprintk(1, "qla1280 : req/ack active negation[0]=%d\n",
2194 nv->bus[0].config_2.req_ack_active_negation);
2195 dprintk(1, "qla1280 : req/ack active negation[1]=%d\n",
2196 nv->bus[1].config_2.req_ack_active_negation);
2197
2198 dprintk(1, "qla1280 : data line active negation[0]=%d\n",
2199 nv->bus[0].config_2.data_line_active_negation);
2200 dprintk(1, "qla1280 : data line active negation[1]=%d\n",
2201 nv->bus[1].config_2.data_line_active_negation);
2202
2203 dprintk(1, "qla1280 : disable loading risc code=%d\n",
2204 nv->cntr_flags_1.disable_loading_risc_code);
2205
2206 dprintk(1, "qla1280 : enable 64bit addressing=%d\n",
2207 nv->cntr_flags_1.enable_64bit_addressing);
2208
2209 dprintk(1, "qla1280 : selection timeout limit[0]=%d\n",
2210 nv->bus[0].selection_timeout);
2211 dprintk(1, "qla1280 : selection timeout limit[1]=%d\n",
2212 nv->bus[1].selection_timeout);
2213
2214 dprintk(1, "qla1280 : max queue depth[0]=%d\n",
2215 nv->bus[0].max_queue_depth);
2216 dprintk(1, "qla1280 : max queue depth[1]=%d\n",
2217 nv->bus[1].max_queue_depth);
2218}
2219
2220static void
2221qla1280_set_target_defaults(struct scsi_qla_host *ha, int bus, int target)
2222{
2223 struct nvram *nv = &ha->nvram;
2224
2225 nv->bus[bus].target[target].parameter.f.renegotiate_on_error = 1;
2226 nv->bus[bus].target[target].parameter.f.auto_request_sense = 1;
2227 nv->bus[bus].target[target].parameter.f.tag_queuing = 1;
2228 nv->bus[bus].target[target].parameter.f.enable_sync = 1;
2229#if 1 /* Some SCSI Processors do not seem to like this */
2230 nv->bus[bus].target[target].parameter.f.enable_wide = 1;
2231#endif
2232 nv->bus[bus].target[target].parameter.f.parity_checking = 1;
2233 nv->bus[bus].target[target].parameter.f.disconnect_allowed = 1;
2234 nv->bus[bus].target[target].execution_throttle =
2235 nv->bus[bus].max_queue_depth - 1;
2236
2237 if (IS_ISP1x160(ha)) {
2238 nv->bus[bus].target[target].flags.flags1x160.device_enable = 1;
2239 nv->bus[bus].target[target].flags.flags1x160.sync_offset = 0x0e;
2240 nv->bus[bus].target[target].sync_period = 9;
2241 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 1;
2242 nv->bus[bus].target[target].ppr_1x160.flags.ppr_options = 2;
2243 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width = 1;
2244 } else {
2245 nv->bus[bus].target[target].flags.flags1x80.device_enable = 1;
2246 nv->bus[bus].target[target].flags.flags1x80.sync_offset = 12;
2247 nv->bus[bus].target[target].sync_period = 10;
2248 }
2249}
2250
2251static void
2252qla1280_set_defaults(struct scsi_qla_host *ha)
2253{
2254 struct nvram *nv = &ha->nvram;
2255 int bus, target;
2256
2257 dprintk(1, "Using defaults for NVRAM: \n");
2258 memset(nv, 0, sizeof(struct nvram));
2259
2260 /* nv->cntr_flags_1.disable_loading_risc_code = 1; */
2261 nv->firmware_feature.f.enable_fast_posting = 1;
2262 nv->firmware_feature.f.disable_synchronous_backoff = 1;
2263 nv->termination.f.scsi_bus_0_control = 3;
2264 nv->termination.f.scsi_bus_1_control = 3;
2265 nv->termination.f.auto_term_support = 1;
2266
2267 /*
2268 * Set default FIFO magic - What appropriate values would be here
2269 * is unknown. This is what I have found testing with 12160s.
2270 *
2271 * Now, I would love the magic decoder ring for this one, the
2272 * header file provided by QLogic seems to be bogus or incomplete
2273 * at best.
2274 */
2275 nv->isp_config.c = ISP_CFG1_BENAB|ISP_CFG1_F128;
2276 if (IS_ISP1x160(ha))
2277 nv->isp_parameter = 0x01; /* fast memory enable */
2278
2279 for (bus = 0; bus < MAX_BUSES; bus++) {
2280 nv->bus[bus].config_1.initiator_id = 7;
2281 nv->bus[bus].config_2.req_ack_active_negation = 1;
2282 nv->bus[bus].config_2.data_line_active_negation = 1;
2283 nv->bus[bus].selection_timeout = 250;
2284 nv->bus[bus].max_queue_depth = 256;
2285
2286 if (IS_ISP1040(ha)) {
2287 nv->bus[bus].bus_reset_delay = 3;
2288 nv->bus[bus].config_2.async_data_setup_time = 6;
2289 nv->bus[bus].retry_delay = 1;
2290 } else {
2291 nv->bus[bus].bus_reset_delay = 5;
2292 nv->bus[bus].config_2.async_data_setup_time = 8;
2293 }
2294
2295 for (target = 0; target < MAX_TARGETS; target++)
2296 qla1280_set_target_defaults(ha, bus, target);
2297 }
2298}
2299
2300static int
2301qla1280_config_target(struct scsi_qla_host *ha, int bus, int target)
2302{
2303 struct nvram *nv = &ha->nvram;
2304 uint16_t mb[MAILBOX_REGISTER_COUNT];
2305 int status, lun;
2306
2307 /* Set Target Parameters. */
2308 mb[0] = MBC_SET_TARGET_PARAMETERS;
2309 mb[1] = (uint16_t) (bus ? target | BIT_7 : target);
2310 mb[1] <<= 8;
2311
2312 /*
2313 * Do not enable wide, sync, and ppr for the initial
2314 * INQUIRY run. We enable this later if we determine
2315 * the target actually supports it.
2316 */
2317 nv->bus[bus].target[target].parameter.f.
2318 auto_request_sense = 1;
2319 nv->bus[bus].target[target].parameter.f.
2320 stop_queue_on_check = 0;
2321
2322 if (IS_ISP1x160(ha))
2323 nv->bus[bus].target[target].ppr_1x160.
2324 flags.enable_ppr = 0;
2325
2326 /*
2327 * No sync, wide, etc. while probing
2328 */
2329 mb[2] = (nv->bus[bus].target[target].parameter.c << 8) &
2330 ~(TP_SYNC /*| TP_WIDE | TP_PPR*/);
2331
2332 if (IS_ISP1x160(ha))
2333 mb[3] = nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8;
2334 else
2335 mb[3] = nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8;
2336 mb[3] |= nv->bus[bus].target[target].sync_period;
2337
2338 status = qla1280_mailbox_command(ha, BIT_3 | BIT_2 | BIT_1 | BIT_0, &mb[0]);
2339
2340 /* Save Tag queuing enable flag. */
2341 mb[0] = BIT_0 << target;
2342 if (nv->bus[bus].target[target].parameter.f.tag_queuing)
2343 ha->bus_settings[bus].qtag_enables |= mb[0];
2344
2345 /* Save Device enable flag. */
2346 if (IS_ISP1x160(ha)) {
2347 if (nv->bus[bus].target[target].flags.flags1x160.device_enable)
2348 ha->bus_settings[bus].device_enables |= mb[0];
2349 ha->bus_settings[bus].lun_disables |= 0;
2350 } else {
2351 if (nv->bus[bus].target[target].flags.flags1x80.device_enable)
2352 ha->bus_settings[bus].device_enables |= mb[0];
2353 /* Save LUN disable flag. */
2354 if (nv->bus[bus].target[target].flags.flags1x80.lun_disable)
2355 ha->bus_settings[bus].lun_disables |= mb[0];
2356 }
2357
2358 /* Set Device Queue Parameters. */
2359 for (lun = 0; lun < MAX_LUNS; lun++) {
2360 mb[0] = MBC_SET_DEVICE_QUEUE;
2361 mb[1] = (uint16_t)(bus ? target | BIT_7 : target);
2362 mb[1] = mb[1] << 8 | lun;
2363 mb[2] = nv->bus[bus].max_queue_depth;
2364 mb[3] = nv->bus[bus].target[target].execution_throttle;
2365 status |= qla1280_mailbox_command(ha, 0x0f, &mb[0]);
2366 }
2367
2368 return status;
2369}
2370
2371static int
2372qla1280_config_bus(struct scsi_qla_host *ha, int bus)
2373{
2374 struct nvram *nv = &ha->nvram;
2375 uint16_t mb[MAILBOX_REGISTER_COUNT];
2376 int target, status;
2377
2378 /* SCSI Reset Disable. */
2379 ha->bus_settings[bus].disable_scsi_reset =
2380 nv->bus[bus].config_1.scsi_reset_disable;
2381
2382 /* Initiator ID. */
2383 ha->bus_settings[bus].id = nv->bus[bus].config_1.initiator_id;
2384 mb[0] = MBC_SET_INITIATOR_ID;
2385 mb[1] = bus ? ha->bus_settings[bus].id | BIT_7 :
2386 ha->bus_settings[bus].id;
2387 status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2388
2389 /* Reset Delay. */
2390 ha->bus_settings[bus].bus_reset_delay =
2391 nv->bus[bus].bus_reset_delay;
2392
2393 /* Command queue depth per device. */
2394 ha->bus_settings[bus].hiwat = nv->bus[bus].max_queue_depth - 1;
2395
2396 /* Set target parameters. */
2397 for (target = 0; target < MAX_TARGETS; target++)
2398 status |= qla1280_config_target(ha, bus, target);
2399
2400 return status;
2401}
2402
2403static int
2404qla1280_nvram_config(struct scsi_qla_host *ha)
2405{
2406 struct device_reg __iomem *reg = ha->iobase;
2407 struct nvram *nv = &ha->nvram;
2408 int bus, target, status = 0;
2409 uint16_t mb[MAILBOX_REGISTER_COUNT];
2410 uint16_t mask;
2411
2412 ENTER("qla1280_nvram_config");
2413
2414 if (ha->nvram_valid) {
2415 /* Always force AUTO sense for LINUX SCSI */
2416 for (bus = 0; bus < MAX_BUSES; bus++)
2417 for (target = 0; target < MAX_TARGETS; target++) {
2418 nv->bus[bus].target[target].parameter.f.
2419 auto_request_sense = 1;
2420 }
2421 } else {
2422 qla1280_set_defaults(ha);
2423 }
2424
2425 qla1280_print_settings(nv);
2426
2427 /* Disable RISC load of firmware. */
2428 ha->flags.disable_risc_code_load =
2429 nv->cntr_flags_1.disable_loading_risc_code;
2430
2431 if (IS_ISP1040(ha)) {
2432 uint16_t hwrev, cfg1, cdma_conf, ddma_conf;
2433
2434 hwrev = RD_REG_WORD(&reg->cfg_0) & ISP_CFG0_HWMSK;
2435
2436 cfg1 = RD_REG_WORD(&reg->cfg_1);
2437 cdma_conf = RD_REG_WORD(&reg->cdma_cfg);
2438 ddma_conf = RD_REG_WORD(&reg->ddma_cfg);
2439
2440 /* Busted fifo, says mjacob. */
2441 if (hwrev == ISP_CFG0_1040A)
2442 WRT_REG_WORD(&reg->cfg_1, cfg1 | ISP_CFG1_F64);
2443 else
2444 WRT_REG_WORD(&reg->cfg_1, cfg1 | ISP_CFG1_F64 | ISP_CFG1_BENAB);
2445
2446 WRT_REG_WORD(&reg->cdma_cfg, cdma_conf | CDMA_CONF_BENAB);
2447 WRT_REG_WORD(&reg->ddma_cfg, cdma_conf | DDMA_CONF_BENAB);
2448 } else {
2449 /* Set ISP hardware DMA burst */
2450 mb[0] = nv->isp_config.c;
2451 /* Enable DMA arbitration on dual channel controllers */
2452 if (ha->ports > 1)
2453 mb[0] |= BIT_13;
2454 WRT_REG_WORD(&reg->cfg_1, mb[0]);
2455
2456 /* Set SCSI termination. */
2457 WRT_REG_WORD(&reg->gpio_enable, (BIT_3 + BIT_2 + BIT_1 + BIT_0));
2458 mb[0] = nv->termination.c & (BIT_3 + BIT_2 + BIT_1 + BIT_0);
2459 WRT_REG_WORD(&reg->gpio_data, mb[0]);
2460 }
2461
2462 /* ISP parameter word. */
2463 mb[0] = MBC_SET_SYSTEM_PARAMETER;
2464 mb[1] = nv->isp_parameter;
2465 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2466
2467 if (IS_ISP1x40(ha)) {
2468 /* clock rate - for qla1240 and older, only */
2469 mb[0] = MBC_SET_CLOCK_RATE;
2470 mb[1] = 40;
2471 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2472 }
2473
2474 /* Firmware feature word. */
2475 mb[0] = MBC_SET_FIRMWARE_FEATURES;
2476 mask = BIT_5 | BIT_1 | BIT_0;
2477 mb[1] = le16_to_cpu(nv->firmware_feature.w) & (mask);
2478#if defined(CONFIG_IA64_GENERIC) || defined (CONFIG_IA64_SGI_SN2)
2479 if (ia64_platform_is("sn2")) {
2480 printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA "
2481 "workaround\n", ha->host_no);
2482 mb[1] |= BIT_9;
2483 }
2484#endif
2485 status |= qla1280_mailbox_command(ha, mask, &mb[0]);
2486
2487 /* Retry count and delay. */
2488 mb[0] = MBC_SET_RETRY_COUNT;
2489 mb[1] = nv->bus[0].retry_count;
2490 mb[2] = nv->bus[0].retry_delay;
2491 mb[6] = nv->bus[1].retry_count;
2492 mb[7] = nv->bus[1].retry_delay;
2493 status |= qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_2 |
2494 BIT_1 | BIT_0, &mb[0]);
2495
2496 /* ASYNC data setup time. */
2497 mb[0] = MBC_SET_ASYNC_DATA_SETUP;
2498 mb[1] = nv->bus[0].config_2.async_data_setup_time;
2499 mb[2] = nv->bus[1].config_2.async_data_setup_time;
2500 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2501
2502 /* Active negation states. */
2503 mb[0] = MBC_SET_ACTIVE_NEGATION;
2504 mb[1] = 0;
2505 if (nv->bus[0].config_2.req_ack_active_negation)
2506 mb[1] |= BIT_5;
2507 if (nv->bus[0].config_2.data_line_active_negation)
2508 mb[1] |= BIT_4;
2509 mb[2] = 0;
2510 if (nv->bus[1].config_2.req_ack_active_negation)
2511 mb[2] |= BIT_5;
2512 if (nv->bus[1].config_2.data_line_active_negation)
2513 mb[2] |= BIT_4;
2514 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2515
2516 mb[0] = MBC_SET_DATA_OVERRUN_RECOVERY;
2517 mb[1] = 2; /* Reset SCSI bus and return all outstanding IO */
2518 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2519
2520 /* thingy */
2521 mb[0] = MBC_SET_PCI_CONTROL;
2522 mb[1] = 2; /* Data DMA Channel Burst Enable */
2523 mb[2] = 2; /* Command DMA Channel Burst Enable */
2524 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2525
2526 mb[0] = MBC_SET_TAG_AGE_LIMIT;
2527 mb[1] = 8;
2528 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2529
2530 /* Selection timeout. */
2531 mb[0] = MBC_SET_SELECTION_TIMEOUT;
2532 mb[1] = nv->bus[0].selection_timeout;
2533 mb[2] = nv->bus[1].selection_timeout;
2534 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2535
2536 for (bus = 0; bus < ha->ports; bus++)
2537 status |= qla1280_config_bus(ha, bus);
2538
2539 if (status)
2540 dprintk(2, "qla1280_nvram_config: **** FAILED ****\n");
2541
2542 LEAVE("qla1280_nvram_config");
2543 return status;
2544}
2545
2546/*
2547 * Get NVRAM data word
2548 * Calculates word position in NVRAM and calls request routine to
2549 * get the word from NVRAM.
2550 *
2551 * Input:
2552 * ha = adapter block pointer.
2553 * address = NVRAM word address.
2554 *
2555 * Returns:
2556 * data word.
2557 */
2558static uint16_t
2559qla1280_get_nvram_word(struct scsi_qla_host *ha, uint32_t address)
2560{
2561 uint32_t nv_cmd;
2562 uint16_t data;
2563
2564 nv_cmd = address << 16;
2565 nv_cmd |= NV_READ_OP;
2566
2567 data = le16_to_cpu(qla1280_nvram_request(ha, nv_cmd));
2568
2569 dprintk(8, "qla1280_get_nvram_word: exiting normally NVRAM data = "
2570 "0x%x", data);
2571
2572 return data;
2573}
2574
2575/*
2576 * NVRAM request
2577 * Sends read command to NVRAM and gets data from NVRAM.
2578 *
2579 * Input:
2580 * ha = adapter block pointer.
2581 * nv_cmd = Bit 26 = start bit
2582 * Bit 25, 24 = opcode
2583 * Bit 23-16 = address
2584 * Bit 15-0 = write data
2585 *
2586 * Returns:
2587 * data word.
2588 */
2589static uint16_t
2590qla1280_nvram_request(struct scsi_qla_host *ha, uint32_t nv_cmd)
2591{
2592 struct device_reg __iomem *reg = ha->iobase;
2593 int cnt;
2594 uint16_t data = 0;
2595 uint16_t reg_data;
2596
2597 /* Send command to NVRAM. */
2598
2599 nv_cmd <<= 5;
2600 for (cnt = 0; cnt < 11; cnt++) {
2601 if (nv_cmd & BIT_31)
2602 qla1280_nv_write(ha, NV_DATA_OUT);
2603 else
2604 qla1280_nv_write(ha, 0);
2605 nv_cmd <<= 1;
2606 }
2607
2608 /* Read data from NVRAM. */
2609
2610 for (cnt = 0; cnt < 16; cnt++) {
2611 WRT_REG_WORD(&reg->nvram, (NV_SELECT | NV_CLOCK));
2612 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2613 NVRAM_DELAY();
2614 data <<= 1;
2615 reg_data = RD_REG_WORD(&reg->nvram);
2616 if (reg_data & NV_DATA_IN)
2617 data |= BIT_0;
2618 WRT_REG_WORD(&reg->nvram, NV_SELECT);
2619 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2620 NVRAM_DELAY();
2621 }
2622
2623 /* Deselect chip. */
2624
2625 WRT_REG_WORD(&reg->nvram, NV_DESELECT);
2626 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2627 NVRAM_DELAY();
2628
2629 return data;
2630}
2631
2632static void
2633qla1280_nv_write(struct scsi_qla_host *ha, uint16_t data)
2634{
2635 struct device_reg __iomem *reg = ha->iobase;
2636
2637 WRT_REG_WORD(&reg->nvram, data | NV_SELECT);
2638 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2639 NVRAM_DELAY();
2640 WRT_REG_WORD(&reg->nvram, data | NV_SELECT | NV_CLOCK);
2641 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2642 NVRAM_DELAY();
2643 WRT_REG_WORD(&reg->nvram, data | NV_SELECT);
2644 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2645 NVRAM_DELAY();
2646}
2647
2648/*
2649 * Mailbox Command
2650 * Issue mailbox command and waits for completion.
2651 *
2652 * Input:
2653 * ha = adapter block pointer.
2654 * mr = mailbox registers to load.
2655 * mb = data pointer for mailbox registers.
2656 *
2657 * Output:
2658 * mb[MAILBOX_REGISTER_COUNT] = returned mailbox data.
2659 *
2660 * Returns:
2661 * 0 = success
2662 */
2663static int
2664qla1280_mailbox_command(struct scsi_qla_host *ha, uint8_t mr, uint16_t *mb)
2665{
2666 struct device_reg __iomem *reg = ha->iobase;
2667#if 0
2668 LIST_HEAD(done_q);
2669#endif
2670 int status = 0;
2671 int cnt;
2672 uint16_t *optr, *iptr;
2673 uint16_t __iomem *mptr;
2674 uint16_t data;
2675 DECLARE_COMPLETION(wait);
2676 struct timer_list timer;
2677
2678 ENTER("qla1280_mailbox_command");
2679
2680 if (ha->mailbox_wait) {
2681 printk(KERN_ERR "Warning mailbox wait already in use!\n");
2682 }
2683 ha->mailbox_wait = &wait;
2684
2685 /*
2686 * We really should start out by verifying that the mailbox is
2687 * available before starting sending the command data
2688 */
2689 /* Load mailbox registers. */
2690 mptr = (uint16_t __iomem *) &reg->mailbox0;
2691 iptr = mb;
2692 for (cnt = 0; cnt < MAILBOX_REGISTER_COUNT; cnt++) {
2693 if (mr & BIT_0) {
2694 WRT_REG_WORD(mptr, (*iptr));
2695 }
2696
2697 mr >>= 1;
2698 mptr++;
2699 iptr++;
2700 }
2701
2702 /* Issue set host interrupt command. */
2703
2704 /* set up a timer just in case we're really jammed */
2705 init_timer(&timer);
2706 timer.expires = jiffies + 20*HZ;
2707 timer.data = (unsigned long)ha;
2708 timer.function = qla1280_mailbox_timeout;
2709 add_timer(&timer);
2710
2711 spin_unlock_irq(HOST_LOCK);
2712 WRT_REG_WORD(&reg->host_cmd, HC_SET_HOST_INT);
2713 data = qla1280_debounce_register(&reg->istatus);
2714
2715 wait_for_completion(&wait);
2716 del_timer_sync(&timer);
2717
2718 spin_lock_irq(HOST_LOCK);
2719
2720 ha->mailbox_wait = NULL;
2721
2722 /* Check for mailbox command timeout. */
2723 if (ha->mailbox_out[0] != MBS_CMD_CMP) {
2724 printk(KERN_WARNING "qla1280_mailbox_command: Command failed, "
2725 "mailbox0 = 0x%04x, mailbox_out0 = 0x%04x, istatus = "
2726 "0x%04x\n",
2727 mb[0], ha->mailbox_out[0], RD_REG_WORD(&reg->istatus));
2728 printk(KERN_WARNING "m0 %04x, m1 %04x, m2 %04x, m3 %04x\n",
2729 RD_REG_WORD(&reg->mailbox0), RD_REG_WORD(&reg->mailbox1),
2730 RD_REG_WORD(&reg->mailbox2), RD_REG_WORD(&reg->mailbox3));
2731 printk(KERN_WARNING "m4 %04x, m5 %04x, m6 %04x, m7 %04x\n",
2732 RD_REG_WORD(&reg->mailbox4), RD_REG_WORD(&reg->mailbox5),
2733 RD_REG_WORD(&reg->mailbox6), RD_REG_WORD(&reg->mailbox7));
2734 status = 1;
2735 }
2736
2737 /* Load return mailbox registers. */
2738 optr = mb;
2739 iptr = (uint16_t *) &ha->mailbox_out[0];
2740 mr = MAILBOX_REGISTER_COUNT;
2741 memcpy(optr, iptr, MAILBOX_REGISTER_COUNT * sizeof(uint16_t));
2742
2743#if 0
2744 /* Go check for any response interrupts pending. */
2745 qla1280_isr(ha, &done_q);
2746#endif
2747
2748 if (ha->flags.reset_marker)
2749 qla1280_rst_aen(ha);
2750
2751#if 0
2752 if (!list_empty(&done_q))
2753 qla1280_done(ha, &done_q);
2754#endif
2755
2756 if (status)
2757 dprintk(2, "qla1280_mailbox_command: **** FAILED, mailbox0 = "
2758 "0x%x ****\n", mb[0]);
2759
2760 LEAVE("qla1280_mailbox_command");
2761 return status;
2762}
2763
2764/*
2765 * qla1280_poll
2766 * Polls ISP for interrupts.
2767 *
2768 * Input:
2769 * ha = adapter block pointer.
2770 */
2771static void
2772qla1280_poll(struct scsi_qla_host *ha)
2773{
2774 struct device_reg __iomem *reg = ha->iobase;
2775 uint16_t data;
2776 LIST_HEAD(done_q);
2777
2778 /* ENTER("qla1280_poll"); */
2779
2780 /* Check for pending interrupts. */
2781 data = RD_REG_WORD(&reg->istatus);
2782 if (data & RISC_INT)
2783 qla1280_isr(ha, &done_q);
2784
2785 if (!ha->mailbox_wait) {
2786 if (ha->flags.reset_marker)
2787 qla1280_rst_aen(ha);
2788 }
2789
2790 if (!list_empty(&done_q))
2791 qla1280_done(ha);
2792
2793 /* LEAVE("qla1280_poll"); */
2794}
2795
2796/*
2797 * qla1280_bus_reset
2798 * Issue SCSI bus reset.
2799 *
2800 * Input:
2801 * ha = adapter block pointer.
2802 * bus = SCSI bus number.
2803 *
2804 * Returns:
2805 * 0 = success
2806 */
2807static int
2808qla1280_bus_reset(struct scsi_qla_host *ha, int bus)
2809{
2810 uint16_t mb[MAILBOX_REGISTER_COUNT];
2811 uint16_t reset_delay;
2812 int status;
2813
2814 dprintk(3, "qla1280_bus_reset: entered\n");
2815
2816 if (qla1280_verbose)
2817 printk(KERN_INFO "scsi(%li:%i): Resetting SCSI BUS\n",
2818 ha->host_no, bus);
2819
2820 reset_delay = ha->bus_settings[bus].bus_reset_delay;
2821 mb[0] = MBC_BUS_RESET;
2822 mb[1] = reset_delay;
2823 mb[2] = (uint16_t) bus;
2824 status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2825
2826 if (status) {
2827 if (ha->bus_settings[bus].failed_reset_count > 2)
2828 ha->bus_settings[bus].scsi_bus_dead = 1;
2829 ha->bus_settings[bus].failed_reset_count++;
2830 } else {
2831 spin_unlock_irq(HOST_LOCK);
2832 schedule_timeout(reset_delay * HZ);
2833 spin_lock_irq(HOST_LOCK);
2834
2835 ha->bus_settings[bus].scsi_bus_dead = 0;
2836 ha->bus_settings[bus].failed_reset_count = 0;
2837 ha->bus_settings[bus].reset_marker = 0;
2838 /* Issue marker command. */
2839 qla1280_marker(ha, bus, 0, 0, MK_SYNC_ALL);
2840 }
2841
2842 /*
2843 * We should probably call qla1280_set_target_parameters()
2844 * here as well for all devices on the bus.
2845 */
2846
2847 if (status)
2848 dprintk(2, "qla1280_bus_reset: **** FAILED ****\n");
2849 else
2850 dprintk(3, "qla1280_bus_reset: exiting normally\n");
2851
2852 return status;
2853}
2854
2855/*
2856 * qla1280_device_reset
2857 * Issue bus device reset message to the target.
2858 *
2859 * Input:
2860 * ha = adapter block pointer.
2861 * bus = SCSI BUS number.
2862 * target = SCSI ID.
2863 *
2864 * Returns:
2865 * 0 = success
2866 */
2867static int
2868qla1280_device_reset(struct scsi_qla_host *ha, int bus, int target)
2869{
2870 uint16_t mb[MAILBOX_REGISTER_COUNT];
2871 int status;
2872
2873 ENTER("qla1280_device_reset");
2874
2875 mb[0] = MBC_ABORT_TARGET;
2876 mb[1] = (bus ? (target | BIT_7) : target) << 8;
2877 mb[2] = 1;
2878 status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2879
2880 /* Issue marker command. */
2881 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
2882
2883 if (status)
2884 dprintk(2, "qla1280_device_reset: **** FAILED ****\n");
2885
2886 LEAVE("qla1280_device_reset");
2887 return status;
2888}
2889
2890/*
2891 * qla1280_abort_device
2892 * Issue an abort message to the device
2893 *
2894 * Input:
2895 * ha = adapter block pointer.
2896 * bus = SCSI BUS.
2897 * target = SCSI ID.
2898 * lun = SCSI LUN.
2899 *
2900 * Returns:
2901 * 0 = success
2902 */
2903static int
2904qla1280_abort_device(struct scsi_qla_host *ha, int bus, int target, int lun)
2905{
2906 uint16_t mb[MAILBOX_REGISTER_COUNT];
2907 int status;
2908
2909 ENTER("qla1280_abort_device");
2910
2911 mb[0] = MBC_ABORT_DEVICE;
2912 mb[1] = (bus ? target | BIT_7 : target) << 8 | lun;
2913 status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2914
2915 /* Issue marker command. */
2916 qla1280_marker(ha, bus, target, lun, MK_SYNC_ID_LUN);
2917
2918 if (status)
2919 dprintk(2, "qla1280_abort_device: **** FAILED ****\n");
2920
2921 LEAVE("qla1280_abort_device");
2922 return status;
2923}
2924
2925/*
2926 * qla1280_abort_command
2927 * Abort command aborts a specified IOCB.
2928 *
2929 * Input:
2930 * ha = adapter block pointer.
2931 * sp = SB structure pointer.
2932 *
2933 * Returns:
2934 * 0 = success
2935 */
2936static int
2937qla1280_abort_command(struct scsi_qla_host *ha, struct srb * sp, int handle)
2938{
2939 uint16_t mb[MAILBOX_REGISTER_COUNT];
2940 unsigned int bus, target, lun;
2941 int status;
2942
2943 ENTER("qla1280_abort_command");
2944
2945 bus = SCSI_BUS_32(sp->cmd);
2946 target = SCSI_TCN_32(sp->cmd);
2947 lun = SCSI_LUN_32(sp->cmd);
2948
2949 sp->flags |= SRB_ABORT_PENDING;
2950
2951 mb[0] = MBC_ABORT_COMMAND;
2952 mb[1] = (bus ? target | BIT_7 : target) << 8 | lun;
2953 mb[2] = handle >> 16;
2954 mb[3] = handle & 0xffff;
2955 status = qla1280_mailbox_command(ha, 0x0f, &mb[0]);
2956
2957 if (status) {
2958 dprintk(2, "qla1280_abort_command: **** FAILED ****\n");
2959 sp->flags &= ~SRB_ABORT_PENDING;
2960 }
2961
2962
2963 LEAVE("qla1280_abort_command");
2964 return status;
2965}
2966
2967/*
2968 * qla1280_reset_adapter
2969 * Reset adapter.
2970 *
2971 * Input:
2972 * ha = adapter block pointer.
2973 */
2974static void
2975qla1280_reset_adapter(struct scsi_qla_host *ha)
2976{
2977 struct device_reg __iomem *reg = ha->iobase;
2978
2979 ENTER("qla1280_reset_adapter");
2980
2981 /* Disable ISP chip */
2982 ha->flags.online = 0;
2983 WRT_REG_WORD(&reg->ictrl, ISP_RESET);
2984 WRT_REG_WORD(&reg->host_cmd,
2985 HC_RESET_RISC | HC_RELEASE_RISC | HC_DISABLE_BIOS);
2986 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2987
2988 LEAVE("qla1280_reset_adapter");
2989}
2990
2991/*
2992 * Issue marker command.
2993 * Function issues marker IOCB.
2994 *
2995 * Input:
2996 * ha = adapter block pointer.
2997 * bus = SCSI BUS number
2998 * id = SCSI ID
2999 * lun = SCSI LUN
3000 * type = marker modifier
3001 */
3002static void
3003qla1280_marker(struct scsi_qla_host *ha, int bus, int id, int lun, u8 type)
3004{
3005 struct mrk_entry *pkt;
3006
3007 ENTER("qla1280_marker");
3008
3009 /* Get request packet. */
3010 if ((pkt = (struct mrk_entry *) qla1280_req_pkt(ha))) {
3011 pkt->entry_type = MARKER_TYPE;
3012 pkt->lun = (uint8_t) lun;
3013 pkt->target = (uint8_t) (bus ? (id | BIT_7) : id);
3014 pkt->modifier = type;
3015 pkt->entry_status = 0;
3016
3017 /* Issue command to ISP */
3018 qla1280_isp_cmd(ha);
3019 }
3020
3021 LEAVE("qla1280_marker");
3022}
3023
3024
3025/*
3026 * qla1280_64bit_start_scsi
3027 * The start SCSI is responsible for building request packets on
3028 * request ring and modifying ISP input pointer.
3029 *
3030 * Input:
3031 * ha = adapter block pointer.
3032 * sp = SB structure pointer.
3033 *
3034 * Returns:
3035 * 0 = success, was able to issue command.
3036 */
3037#ifdef QLA_64BIT_PTR
3038static int
3039qla1280_64bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
3040{
3041 struct device_reg __iomem *reg = ha->iobase;
3042 struct scsi_cmnd *cmd = sp->cmd;
3043 cmd_a64_entry_t *pkt;
3044 struct scatterlist *sg = NULL;
3045 u32 *dword_ptr;
3046 dma_addr_t dma_handle;
3047 int status = 0;
3048 int cnt;
3049 int req_cnt;
3050 u16 seg_cnt;
3051 u8 dir;
3052
3053 ENTER("qla1280_64bit_start_scsi:");
3054
3055 /* Calculate number of entries and segments required. */
3056 req_cnt = 1;
3057 if (cmd->use_sg) {
3058 sg = (struct scatterlist *) cmd->request_buffer;
3059 seg_cnt = pci_map_sg(ha->pdev, sg, cmd->use_sg,
3060 cmd->sc_data_direction);
3061
3062 if (seg_cnt > 2) {
3063 req_cnt += (seg_cnt - 2) / 5;
3064 if ((seg_cnt - 2) % 5)
3065 req_cnt++;
3066 }
3067 } else if (cmd->request_bufflen) { /* If data transfer. */
3068 seg_cnt = 1;
3069 } else {
3070 seg_cnt = 0;
3071 }
3072
3073 if ((req_cnt + 2) >= ha->req_q_cnt) {
3074 /* Calculate number of free request entries. */
3075 cnt = RD_REG_WORD(&reg->mailbox4);
3076 if (ha->req_ring_index < cnt)
3077 ha->req_q_cnt = cnt - ha->req_ring_index;
3078 else
3079 ha->req_q_cnt =
3080 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
3081 }
3082
3083 /* If room for request in request ring. */
3084 if ((req_cnt + 2) >= ha->req_q_cnt) {
3085 status = 1;
3086 dprintk(2, "qla1280_64bit_start_scsi: in-ptr=0x%x req_q_cnt="
3087 "0x%xreq_cnt=0x%x", ha->req_ring_index, ha->req_q_cnt,
3088 req_cnt);
3089 goto out;
3090 }
3091
3092 /* Check for room in outstanding command list. */
3093 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
3094 ha->outstanding_cmds[cnt] != 0; cnt++);
3095
3096 if (cnt >= MAX_OUTSTANDING_COMMANDS) {
3097 status = 1;
3098 dprintk(2, "qla1280_64bit_start_scsi: NO ROOM IN "
3099 "OUTSTANDING ARRAY, req_q_cnt=0x%x", ha->req_q_cnt);
3100 goto out;
3101 }
3102
3103 ha->outstanding_cmds[cnt] = sp;
3104 ha->req_q_cnt -= req_cnt;
3105 CMD_HANDLE(sp->cmd) = (unsigned char *)(unsigned long)(cnt + 1);
3106
3107 dprintk(2, "64bit_start: cmd=%p sp=%p CDB=%xm, handle %lx\n", cmd, sp,
3108 cmd->cmnd[0], (long)CMD_HANDLE(sp->cmd));
3109 dprintk(2, " bus %i, target %i, lun %i\n",
3110 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
3111 qla1280_dump_buffer(2, cmd->cmnd, MAX_COMMAND_SIZE);
3112
3113 /*
3114 * Build command packet.
3115 */
3116 pkt = (cmd_a64_entry_t *) ha->request_ring_ptr;
3117
3118 pkt->entry_type = COMMAND_A64_TYPE;
3119 pkt->entry_count = (uint8_t) req_cnt;
3120 pkt->sys_define = (uint8_t) ha->req_ring_index;
3121 pkt->entry_status = 0;
3122 pkt->handle = cpu_to_le32(cnt);
3123
3124 /* Zero out remaining portion of packet. */
3125 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
3126
3127 /* Set ISP command timeout. */
3128 pkt->timeout = cpu_to_le16(30);
3129
3130 /* Set device target ID and LUN */
3131 pkt->lun = SCSI_LUN_32(cmd);
3132 pkt->target = SCSI_BUS_32(cmd) ?
3133 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
3134
3135 /* Enable simple tag queuing if device supports it. */
3136 if (DEV_SIMPLE_TAGS(cmd->device))
3137 pkt->control_flags |= cpu_to_le16(BIT_3);
3138
3139 /* Load SCSI command packet. */
3140 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
3141 memcpy(pkt->scsi_cdb, &(CMD_CDBP(cmd)), CMD_CDBLEN(cmd));
3142 /* dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
3143
3144 /* Set transfer direction. */
3145 dir = qla1280_data_direction(cmd);
3146 pkt->control_flags |= cpu_to_le16(dir);
3147
3148 /* Set total data segment count. */
3149 pkt->dseg_count = cpu_to_le16(seg_cnt);
3150
3151 /*
3152 * Load data segments.
3153 */
3154 if (seg_cnt) { /* If data transfer. */
3155 /* Setup packet address segment pointer. */
3156 dword_ptr = (u32 *)&pkt->dseg_0_address;
3157
3158 if (cmd->use_sg) { /* If scatter gather */
3159 /* Load command entry data segments. */
3160 for (cnt = 0; cnt < 2 && seg_cnt; cnt++, seg_cnt--) {
3161 dma_handle = sg_dma_address(sg);
3162#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
3163 if (ha->flags.use_pci_vchannel)
3164 sn_pci_set_vchan(ha->pdev,
3165 (unsigned long *)&dma_handle,
3166 SCSI_BUS_32(cmd));
3167#endif
3168 *dword_ptr++ =
3169 cpu_to_le32(pci_dma_lo32(dma_handle));
3170 *dword_ptr++ =
3171 cpu_to_le32(pci_dma_hi32(dma_handle));
3172 *dword_ptr++ = cpu_to_le32(sg_dma_len(sg));
3173 sg++;
3174 dprintk(3, "S/G Segment phys_addr=%x %x, len=0x%x\n",
3175 cpu_to_le32(pci_dma_hi32(dma_handle)),
3176 cpu_to_le32(pci_dma_lo32(dma_handle)),
3177 cpu_to_le32(sg_dma_len(sg)));
3178 }
3179 dprintk(5, "qla1280_64bit_start_scsi: Scatter/gather "
3180 "command packet data - b %i, t %i, l %i \n",
3181 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd),
3182 SCSI_LUN_32(cmd));
3183 qla1280_dump_buffer(5, (char *)pkt,
3184 REQUEST_ENTRY_SIZE);
3185
3186 /*
3187 * Build continuation packets.
3188 */
3189 dprintk(3, "S/G Building Continuation...seg_cnt=0x%x "
3190 "remains\n", seg_cnt);
3191
3192 while (seg_cnt > 0) {
3193 /* Adjust ring index. */
3194 ha->req_ring_index++;
3195 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3196 ha->req_ring_index = 0;
3197 ha->request_ring_ptr =
3198 ha->request_ring;
3199 } else
3200 ha->request_ring_ptr++;
3201
3202 pkt = (cmd_a64_entry_t *)ha->request_ring_ptr;
3203
3204 /* Zero out packet. */
3205 memset(pkt, 0, REQUEST_ENTRY_SIZE);
3206
3207 /* Load packet defaults. */
3208 ((struct cont_a64_entry *) pkt)->entry_type =
3209 CONTINUE_A64_TYPE;
3210 ((struct cont_a64_entry *) pkt)->entry_count = 1;
3211 ((struct cont_a64_entry *) pkt)->sys_define =
3212 (uint8_t)ha->req_ring_index;
3213 /* Setup packet address segment pointer. */
3214 dword_ptr =
3215 (u32 *)&((struct cont_a64_entry *) pkt)->dseg_0_address;
3216
3217 /* Load continuation entry data segments. */
3218 for (cnt = 0; cnt < 5 && seg_cnt;
3219 cnt++, seg_cnt--) {
3220 dma_handle = sg_dma_address(sg);
3221#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
3222 if (ha->flags.use_pci_vchannel)
3223 sn_pci_set_vchan(ha->pdev,
3224 (unsigned long *)&dma_handle,
3225 SCSI_BUS_32(cmd));
3226#endif
3227 *dword_ptr++ =
3228 cpu_to_le32(pci_dma_lo32(dma_handle));
3229 *dword_ptr++ =
3230 cpu_to_le32(pci_dma_hi32(dma_handle));
3231 *dword_ptr++ =
3232 cpu_to_le32(sg_dma_len(sg));
3233 dprintk(3, "S/G Segment Cont. phys_addr=%x %x, len=0x%x\n",
3234 cpu_to_le32(pci_dma_hi32(dma_handle)),
3235 cpu_to_le32(pci_dma_lo32(dma_handle)),
3236 cpu_to_le32(sg_dma_len(sg)));
3237 sg++;
3238 }
3239 dprintk(5, "qla1280_64bit_start_scsi: "
3240 "continuation packet data - b %i, t "
3241 "%i, l %i \n", SCSI_BUS_32(cmd),
3242 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
3243 qla1280_dump_buffer(5, (char *)pkt,
3244 REQUEST_ENTRY_SIZE);
3245 }
3246 } else { /* No scatter gather data transfer */
3247 dma_handle = pci_map_single(ha->pdev,
3248 cmd->request_buffer,
3249 cmd->request_bufflen,
3250 cmd->sc_data_direction);
3251
3252 sp->saved_dma_handle = dma_handle;
3253#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
3254 if (ha->flags.use_pci_vchannel)
3255 sn_pci_set_vchan(ha->pdev,
3256 (unsigned long *)&dma_handle,
3257 SCSI_BUS_32(cmd));
3258#endif
3259 *dword_ptr++ = cpu_to_le32(pci_dma_lo32(dma_handle));
3260 *dword_ptr++ = cpu_to_le32(pci_dma_hi32(dma_handle));
3261 *dword_ptr = cpu_to_le32(cmd->request_bufflen);
3262
3263 dprintk(5, "qla1280_64bit_start_scsi: No scatter/"
3264 "gather command packet data - b %i, t %i, "
3265 "l %i \n", SCSI_BUS_32(cmd), SCSI_TCN_32(cmd),
3266 SCSI_LUN_32(cmd));
3267 qla1280_dump_buffer(5, (char *)pkt,
3268 REQUEST_ENTRY_SIZE);
3269 }
3270 } else { /* No data transfer */
3271 dprintk(5, "qla1280_64bit_start_scsi: No data, command "
3272 "packet data - b %i, t %i, l %i \n",
3273 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
3274 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
3275 }
3276 /* Adjust ring index. */
3277 ha->req_ring_index++;
3278 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3279 ha->req_ring_index = 0;
3280 ha->request_ring_ptr = ha->request_ring;
3281 } else
3282 ha->request_ring_ptr++;
3283
3284 /* Set chip new ring index. */
3285 dprintk(2,
3286 "qla1280_64bit_start_scsi: Wakeup RISC for pending command\n");
3287 sp->flags |= SRB_SENT;
3288 ha->actthreads++;
3289 WRT_REG_WORD(&reg->mailbox4, ha->req_ring_index);
3290 /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */
3291 mmiowb();
3292
3293 out:
3294 if (status)
3295 dprintk(2, "qla1280_64bit_start_scsi: **** FAILED ****\n");
3296 else
3297 dprintk(3, "qla1280_64bit_start_scsi: exiting normally\n");
3298
3299 return status;
3300}
3301#else /* !QLA_64BIT_PTR */
3302
3303/*
3304 * qla1280_32bit_start_scsi
3305 * The start SCSI is responsible for building request packets on
3306 * request ring and modifying ISP input pointer.
3307 *
3308 * The Qlogic firmware interface allows every queue slot to have a SCSI
3309 * command and up to 4 scatter/gather (SG) entries. If we need more
3310 * than 4 SG entries, then continuation entries are used that can
3311 * hold another 7 entries each. The start routine determines if there
3312 * is eought empty slots then build the combination of requests to
3313 * fulfill the OS request.
3314 *
3315 * Input:
3316 * ha = adapter block pointer.
3317 * sp = SCSI Request Block structure pointer.
3318 *
3319 * Returns:
3320 * 0 = success, was able to issue command.
3321 */
3322static int
3323qla1280_32bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
3324{
3325 struct device_reg __iomem *reg = ha->iobase;
3326 struct scsi_cmnd *cmd = sp->cmd;
3327 struct cmd_entry *pkt;
3328 struct scatterlist *sg = NULL;
3329 uint32_t *dword_ptr;
3330 int status = 0;
3331 int cnt;
3332 int req_cnt;
3333 uint16_t seg_cnt;
3334 dma_addr_t dma_handle;
3335 u8 dir;
3336
3337 ENTER("qla1280_32bit_start_scsi");
3338
3339 dprintk(1, "32bit_start: cmd=%p sp=%p CDB=%x\n", cmd, sp,
3340 cmd->cmnd[0]);
3341
3342 /* Calculate number of entries and segments required. */
3343 req_cnt = 1;
3344 if (cmd->use_sg) {
3345 /*
3346 * We must build an SG list in adapter format, as the kernel's
3347 * SG list cannot be used directly because of data field size
3348 * (__alpha__) differences and the kernel SG list uses virtual
3349 * addresses where we need physical addresses.
3350 */
3351 sg = (struct scatterlist *) cmd->request_buffer;
3352 seg_cnt = pci_map_sg(ha->pdev, sg, cmd->use_sg,
3353 cmd->sc_data_direction);
3354
3355 /*
3356 * if greater than four sg entries then we need to allocate
3357 * continuation entries
3358 */
3359 if (seg_cnt > 4) {
3360 req_cnt += (seg_cnt - 4) / 7;
3361 if ((seg_cnt - 4) % 7)
3362 req_cnt++;
3363 }
3364 dprintk(3, "S/G Transfer cmd=%p seg_cnt=0x%x, req_cnt=%x\n",
3365 cmd, seg_cnt, req_cnt);
3366 } else if (cmd->request_bufflen) { /* If data transfer. */
3367 dprintk(3, "No S/G transfer t=%x cmd=%p len=%x CDB=%x\n",
3368 SCSI_TCN_32(cmd), cmd, cmd->request_bufflen,
3369 cmd->cmnd[0]);
3370 seg_cnt = 1;
3371 } else {
3372 /* dprintk(1, "No data transfer \n"); */
3373 seg_cnt = 0;
3374 }
3375
3376 if ((req_cnt + 2) >= ha->req_q_cnt) {
3377 /* Calculate number of free request entries. */
3378 cnt = RD_REG_WORD(&reg->mailbox4);
3379 if (ha->req_ring_index < cnt)
3380 ha->req_q_cnt = cnt - ha->req_ring_index;
3381 else
3382 ha->req_q_cnt =
3383 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
3384 }
3385
3386 dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
3387 ha->req_q_cnt, seg_cnt);
3388 /* If room for request in request ring. */
3389 if ((req_cnt + 2) >= ha->req_q_cnt) {
3390 status = 1;
3391 dprintk(2, "qla1280_32bit_start_scsi: in-ptr=0x%x, "
3392 "req_q_cnt=0x%x, req_cnt=0x%x", ha->req_ring_index,
3393 ha->req_q_cnt, req_cnt);
3394 goto out;
3395 }
3396
3397 /* Check for empty slot in outstanding command list. */
3398 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
3399 (ha->outstanding_cmds[cnt] != 0); cnt++) ;
3400
3401 if (cnt >= MAX_OUTSTANDING_COMMANDS) {
3402 status = 1;
3403 dprintk(2, "qla1280_32bit_start_scsi: NO ROOM IN OUTSTANDING "
3404 "ARRAY, req_q_cnt=0x%x\n", ha->req_q_cnt);
3405 goto out;
3406 }
3407
3408 CMD_HANDLE(sp->cmd) = (unsigned char *) (unsigned long)(cnt + 1);
3409 ha->outstanding_cmds[cnt] = sp;
3410 ha->req_q_cnt -= req_cnt;
3411
3412 /*
3413 * Build command packet.
3414 */
3415 pkt = (struct cmd_entry *) ha->request_ring_ptr;
3416
3417 pkt->entry_type = COMMAND_TYPE;
3418 pkt->entry_count = (uint8_t) req_cnt;
3419 pkt->sys_define = (uint8_t) ha->req_ring_index;
3420 pkt->entry_status = 0;
3421 pkt->handle = cpu_to_le32(cnt);
3422
3423 /* Zero out remaining portion of packet. */
3424 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
3425
3426 /* Set ISP command timeout. */
3427 pkt->timeout = cpu_to_le16(30);
3428
3429 /* Set device target ID and LUN */
3430 pkt->lun = SCSI_LUN_32(cmd);
3431 pkt->target = SCSI_BUS_32(cmd) ?
3432 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
3433
3434 /* Enable simple tag queuing if device supports it. */
3435 if (DEV_SIMPLE_TAGS(cmd->device))
3436 pkt->control_flags |= cpu_to_le16(BIT_3);
3437
3438 /* Load SCSI command packet. */
3439 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
3440 memcpy(pkt->scsi_cdb, &(CMD_CDBP(cmd)), CMD_CDBLEN(cmd));
3441
3442 /*dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
3443 /* Set transfer direction. */
3444 dir = qla1280_data_direction(cmd);
3445 pkt->control_flags |= cpu_to_le16(dir);
3446
3447 /* Set total data segment count. */
3448 pkt->dseg_count = cpu_to_le16(seg_cnt);
3449
3450 /*
3451 * Load data segments.
3452 */
3453 if (seg_cnt) {
3454 /* Setup packet address segment pointer. */
3455 dword_ptr = &pkt->dseg_0_address;
3456
3457 if (cmd->use_sg) { /* If scatter gather */
3458 dprintk(3, "Building S/G data segments..\n");
3459 qla1280_dump_buffer(1, (char *)sg, 4 * 16);
3460
3461 /* Load command entry data segments. */
3462 for (cnt = 0; cnt < 4 && seg_cnt; cnt++, seg_cnt--) {
3463 *dword_ptr++ =
3464 cpu_to_le32(pci_dma_lo32(sg_dma_address(sg)));
3465 *dword_ptr++ =
3466 cpu_to_le32(sg_dma_len(sg));
3467 dprintk(3, "S/G Segment phys_addr=0x%lx, len=0x%x\n",
3468 (pci_dma_lo32(sg_dma_address(sg))),
3469 (sg_dma_len(sg)));
3470 sg++;
3471 }
3472 /*
3473 * Build continuation packets.
3474 */
3475 dprintk(3, "S/G Building Continuation"
3476 "...seg_cnt=0x%x remains\n", seg_cnt);
3477 while (seg_cnt > 0) {
3478 /* Adjust ring index. */
3479 ha->req_ring_index++;
3480 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3481 ha->req_ring_index = 0;
3482 ha->request_ring_ptr =
3483 ha->request_ring;
3484 } else
3485 ha->request_ring_ptr++;
3486
3487 pkt = (struct cmd_entry *)ha->request_ring_ptr;
3488
3489 /* Zero out packet. */
3490 memset(pkt, 0, REQUEST_ENTRY_SIZE);
3491
3492 /* Load packet defaults. */
3493 ((struct cont_entry *) pkt)->
3494 entry_type = CONTINUE_TYPE;
3495 ((struct cont_entry *) pkt)->entry_count = 1;
3496
3497 ((struct cont_entry *) pkt)->sys_define =
3498 (uint8_t) ha->req_ring_index;
3499
3500 /* Setup packet address segment pointer. */
3501 dword_ptr =
3502 &((struct cont_entry *) pkt)->dseg_0_address;
3503
3504 /* Load continuation entry data segments. */
3505 for (cnt = 0; cnt < 7 && seg_cnt;
3506 cnt++, seg_cnt--) {
3507 *dword_ptr++ =
3508 cpu_to_le32(pci_dma_lo32(sg_dma_address(sg)));
3509 *dword_ptr++ =
3510 cpu_to_le32(sg_dma_len(sg));
3511 dprintk(1,
3512 "S/G Segment Cont. phys_addr=0x%x, "
3513 "len=0x%x\n",
3514 cpu_to_le32(pci_dma_lo32(sg_dma_address(sg))),
3515 cpu_to_le32(sg_dma_len(sg)));
3516 sg++;
3517 }
3518 dprintk(5, "qla1280_32bit_start_scsi: "
3519 "continuation packet data - "
3520 "scsi(%i:%i:%i)\n", SCSI_BUS_32(cmd),
3521 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
3522 qla1280_dump_buffer(5, (char *)pkt,
3523 REQUEST_ENTRY_SIZE);
3524 }
3525 } else { /* No S/G data transfer */
3526 dma_handle = pci_map_single(ha->pdev,
3527 cmd->request_buffer,
3528 cmd->request_bufflen,
3529 cmd->sc_data_direction);
3530 sp->saved_dma_handle = dma_handle;
3531
3532 *dword_ptr++ = cpu_to_le32(pci_dma_lo32(dma_handle));
3533 *dword_ptr = cpu_to_le32(cmd->request_bufflen);
3534 }
3535 } else { /* No data transfer at all */
3536 dprintk(5, "qla1280_32bit_start_scsi: No data, command "
3537 "packet data - \n");
3538 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
3539 }
3540 dprintk(5, "qla1280_32bit_start_scsi: First IOCB block:\n");
3541 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
3542 REQUEST_ENTRY_SIZE);
3543
3544 /* Adjust ring index. */
3545 ha->req_ring_index++;
3546 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3547 ha->req_ring_index = 0;
3548 ha->request_ring_ptr = ha->request_ring;
3549 } else
3550 ha->request_ring_ptr++;
3551
3552 /* Set chip new ring index. */
3553 dprintk(2, "qla1280_32bit_start_scsi: Wakeup RISC "
3554 "for pending command\n");
3555 sp->flags |= SRB_SENT;
3556 ha->actthreads++;
3557 WRT_REG_WORD(&reg->mailbox4, ha->req_ring_index);
3558 /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */
3559 mmiowb();
3560
3561out:
3562 if (status)
3563 dprintk(2, "qla1280_32bit_start_scsi: **** FAILED ****\n");
3564
3565 LEAVE("qla1280_32bit_start_scsi");
3566
3567 return status;
3568}
3569#endif
3570
3571/*
3572 * qla1280_req_pkt
3573 * Function is responsible for locking ring and
3574 * getting a zeroed out request packet.
3575 *
3576 * Input:
3577 * ha = adapter block pointer.
3578 *
3579 * Returns:
3580 * 0 = failed to get slot.
3581 */
3582static request_t *
3583qla1280_req_pkt(struct scsi_qla_host *ha)
3584{
3585 struct device_reg __iomem *reg = ha->iobase;
3586 request_t *pkt = NULL;
3587 int cnt;
3588 uint32_t timer;
3589
3590 ENTER("qla1280_req_pkt");
3591
3592 /*
3593 * This can be called from interrupt context, damn it!!!
3594 */
3595 /* Wait for 30 seconds for slot. */
3596 for (timer = 15000000; timer; timer--) {
3597 if (ha->req_q_cnt > 0) {
3598 /* Calculate number of free request entries. */
3599 cnt = RD_REG_WORD(&reg->mailbox4);
3600 if (ha->req_ring_index < cnt)
3601 ha->req_q_cnt = cnt - ha->req_ring_index;
3602 else
3603 ha->req_q_cnt =
3604 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
3605 }
3606
3607 /* Found empty request ring slot? */
3608 if (ha->req_q_cnt > 0) {
3609 ha->req_q_cnt--;
3610 pkt = ha->request_ring_ptr;
3611
3612 /* Zero out packet. */
3613 memset(pkt, 0, REQUEST_ENTRY_SIZE);
3614
3615 /*
3616 * How can this be right when we have a ring
3617 * size of 512???
3618 */
3619 /* Set system defined field. */
3620 pkt->sys_define = (uint8_t) ha->req_ring_index;
3621
3622 /* Set entry count. */
3623 pkt->entry_count = 1;
3624
3625 break;
3626 }
3627
3628 udelay(2); /* 10 */
3629
3630 /* Check for pending interrupts. */
3631 qla1280_poll(ha);
3632 }
3633
3634 if (!pkt)
3635 dprintk(2, "qla1280_req_pkt: **** FAILED ****\n");
3636 else
3637 dprintk(3, "qla1280_req_pkt: exiting normally\n");
3638
3639 return pkt;
3640}
3641
3642/*
3643 * qla1280_isp_cmd
3644 * Function is responsible for modifying ISP input pointer.
3645 * Releases ring lock.
3646 *
3647 * Input:
3648 * ha = adapter block pointer.
3649 */
3650static void
3651qla1280_isp_cmd(struct scsi_qla_host *ha)
3652{
3653 struct device_reg __iomem *reg = ha->iobase;
3654
3655 ENTER("qla1280_isp_cmd");
3656
3657 dprintk(5, "qla1280_isp_cmd: IOCB data:\n");
3658 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
3659 REQUEST_ENTRY_SIZE);
3660
3661 /* Adjust ring index. */
3662 ha->req_ring_index++;
3663 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3664 ha->req_ring_index = 0;
3665 ha->request_ring_ptr = ha->request_ring;
3666 } else
3667 ha->request_ring_ptr++;
3668
3669 /*
3670 * Update request index to mailbox4 (Request Queue In).
3671 * The mmiowb() ensures that this write is ordered with writes by other
3672 * CPUs. Without the mmiowb(), it is possible for the following:
3673 * CPUA posts write of index 5 to mailbox4
3674 * CPUA releases host lock
3675 * CPUB acquires host lock
3676 * CPUB posts write of index 6 to mailbox4
3677 * On PCI bus, order reverses and write of 6 posts, then index 5,
3678 * causing chip to issue full queue of stale commands
3679 * The mmiowb() prevents future writes from crossing the barrier.
3680 * See Documentation/DocBook/deviceiobook.tmpl for more information.
3681 */
3682 WRT_REG_WORD(&reg->mailbox4, ha->req_ring_index);
3683 mmiowb();
3684
3685 LEAVE("qla1280_isp_cmd");
3686}
3687
3688/****************************************************************************/
3689/* Interrupt Service Routine. */
3690/****************************************************************************/
3691
3692/****************************************************************************
3693 * qla1280_isr
3694 * Calls I/O done on command completion.
3695 *
3696 * Input:
3697 * ha = adapter block pointer.
3698 * done_q = done queue.
3699 ****************************************************************************/
3700static void
3701qla1280_isr(struct scsi_qla_host *ha, struct list_head *done_q)
3702{
3703 struct device_reg __iomem *reg = ha->iobase;
3704 struct response *pkt;
3705 struct srb *sp = NULL;
3706 uint16_t mailbox[MAILBOX_REGISTER_COUNT];
3707 uint16_t *wptr;
3708 uint32_t index;
3709 u16 istatus;
3710
3711 ENTER("qla1280_isr");
3712
3713 istatus = RD_REG_WORD(&reg->istatus);
3714 if (!(istatus & (RISC_INT | PCI_INT)))
3715 return;
3716
3717 /* Save mailbox register 5 */
3718 mailbox[5] = RD_REG_WORD(&reg->mailbox5);
3719
3720 /* Check for mailbox interrupt. */
3721
3722 mailbox[0] = RD_REG_WORD_dmasync(&reg->semaphore);
3723
3724 if (mailbox[0] & BIT_0) {
3725 /* Get mailbox data. */
3726 /* dprintk(1, "qla1280_isr: In Get mailbox data \n"); */
3727
3728 wptr = &mailbox[0];
3729 *wptr++ = RD_REG_WORD(&reg->mailbox0);
3730 *wptr++ = RD_REG_WORD(&reg->mailbox1);
3731 *wptr = RD_REG_WORD(&reg->mailbox2);
3732 if (mailbox[0] != MBA_SCSI_COMPLETION) {
3733 wptr++;
3734 *wptr++ = RD_REG_WORD(&reg->mailbox3);
3735 *wptr++ = RD_REG_WORD(&reg->mailbox4);
3736 wptr++;
3737 *wptr++ = RD_REG_WORD(&reg->mailbox6);
3738 *wptr = RD_REG_WORD(&reg->mailbox7);
3739 }
3740
3741 /* Release mailbox registers. */
3742
3743 WRT_REG_WORD(&reg->semaphore, 0);
3744 WRT_REG_WORD(&reg->host_cmd, HC_CLR_RISC_INT);
3745
3746 dprintk(5, "qla1280_isr: mailbox interrupt mailbox[0] = 0x%x",
3747 mailbox[0]);
3748
3749 /* Handle asynchronous event */
3750 switch (mailbox[0]) {
3751 case MBA_SCSI_COMPLETION: /* Response completion */
3752 dprintk(5, "qla1280_isr: mailbox SCSI response "
3753 "completion\n");
3754
3755 if (ha->flags.online) {
3756 /* Get outstanding command index. */
3757 index = mailbox[2] << 16 | mailbox[1];
3758
3759 /* Validate handle. */
3760 if (index < MAX_OUTSTANDING_COMMANDS)
3761 sp = ha->outstanding_cmds[index];
3762 else
3763 sp = NULL;
3764
3765 if (sp) {
3766 /* Free outstanding command slot. */
3767 ha->outstanding_cmds[index] = NULL;
3768
3769 /* Save ISP completion status */
3770 CMD_RESULT(sp->cmd) = 0;
3771
3772 /* Place block on done queue */
3773 list_add_tail(&sp->list, done_q);
3774 } else {
3775 /*
3776 * If we get here we have a real problem!
3777 */
3778 printk(KERN_WARNING
3779 "qla1280: ISP invalid handle");
3780 }
3781 }
3782 break;
3783
3784 case MBA_BUS_RESET: /* SCSI Bus Reset */
3785 ha->flags.reset_marker = 1;
3786 index = mailbox[6] & BIT_0;
3787 ha->bus_settings[index].reset_marker = 1;
3788
3789 printk(KERN_DEBUG "qla1280_isr(): index %i "
3790 "asynchronous BUS_RESET\n", index);
3791 break;
3792
3793 case MBA_SYSTEM_ERR: /* System Error */
3794 printk(KERN_WARNING
3795 "qla1280: ISP System Error - mbx1=%xh, mbx2="
3796 "%xh, mbx3=%xh\n", mailbox[1], mailbox[2],
3797 mailbox[3]);
3798 break;
3799
3800 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
3801 printk(KERN_WARNING
3802 "qla1280: ISP Request Transfer Error\n");
3803 break;
3804
3805 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
3806 printk(KERN_WARNING
3807 "qla1280: ISP Response Transfer Error\n");
3808 break;
3809
3810 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
3811 dprintk(2, "qla1280_isr: asynchronous WAKEUP_THRES\n");
3812 break;
3813
3814 case MBA_TIMEOUT_RESET: /* Execution Timeout Reset */
3815 dprintk(2,
3816 "qla1280_isr: asynchronous TIMEOUT_RESET\n");
3817 break;
3818
3819 case MBA_DEVICE_RESET: /* Bus Device Reset */
3820 printk(KERN_INFO "qla1280_isr(): asynchronous "
3821 "BUS_DEVICE_RESET\n");
3822
3823 ha->flags.reset_marker = 1;
3824 index = mailbox[6] & BIT_0;
3825 ha->bus_settings[index].reset_marker = 1;
3826 break;
3827
3828 case MBA_BUS_MODE_CHANGE:
3829 dprintk(2,
3830 "qla1280_isr: asynchronous BUS_MODE_CHANGE\n");
3831 break;
3832
3833 default:
3834 /* dprintk(1, "qla1280_isr: default case of switch MB \n"); */
3835 if (mailbox[0] < MBA_ASYNC_EVENT) {
3836 wptr = &mailbox[0];
3837 memcpy((uint16_t *) ha->mailbox_out, wptr,
3838 MAILBOX_REGISTER_COUNT *
3839 sizeof(uint16_t));
3840
3841 if(ha->mailbox_wait != NULL)
3842 complete(ha->mailbox_wait);
3843 }
3844 break;
3845 }
3846 } else {
3847 WRT_REG_WORD(&reg->host_cmd, HC_CLR_RISC_INT);
3848 }
3849
3850 /*
3851 * We will receive interrupts during mailbox testing prior to
3852 * the card being marked online, hence the double check.
3853 */
3854 if (!(ha->flags.online && !ha->mailbox_wait)) {
3855 dprintk(2, "qla1280_isr: Response pointer Error\n");
3856 goto out;
3857 }
3858
3859 if (mailbox[5] >= RESPONSE_ENTRY_CNT)
3860 goto out;
3861
3862 while (ha->rsp_ring_index != mailbox[5]) {
3863 pkt = ha->response_ring_ptr;
3864
3865 dprintk(5, "qla1280_isr: ha->rsp_ring_index = 0x%x, mailbox[5]"
3866 " = 0x%x\n", ha->rsp_ring_index, mailbox[5]);
3867 dprintk(5,"qla1280_isr: response packet data\n");
3868 qla1280_dump_buffer(5, (char *)pkt, RESPONSE_ENTRY_SIZE);
3869
3870 if (pkt->entry_type == STATUS_TYPE) {
3871 if ((le16_to_cpu(pkt->scsi_status) & 0xff)
3872 || pkt->comp_status || pkt->entry_status) {
3873 dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
3874 "0x%x mailbox[5] = 0x%x, comp_status "
3875 "= 0x%x, scsi_status = 0x%x\n",
3876 ha->rsp_ring_index, mailbox[5],
3877 le16_to_cpu(pkt->comp_status),
3878 le16_to_cpu(pkt->scsi_status));
3879 }
3880 } else {
3881 dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
3882 "0x%x, mailbox[5] = 0x%x\n",
3883 ha->rsp_ring_index, mailbox[5]);
3884 dprintk(2, "qla1280_isr: response packet data\n");
3885 qla1280_dump_buffer(2, (char *)pkt,
3886 RESPONSE_ENTRY_SIZE);
3887 }
3888
3889 if (pkt->entry_type == STATUS_TYPE || pkt->entry_status) {
3890 dprintk(2, "status: Cmd %p, handle %i\n",
3891 ha->outstanding_cmds[pkt->handle]->cmd,
3892 pkt->handle);
3893 if (pkt->entry_type == STATUS_TYPE)
3894 qla1280_status_entry(ha, pkt, done_q);
3895 else
3896 qla1280_error_entry(ha, pkt, done_q);
3897 /* Adjust ring index. */
3898 ha->rsp_ring_index++;
3899 if (ha->rsp_ring_index == RESPONSE_ENTRY_CNT) {
3900 ha->rsp_ring_index = 0;
3901 ha->response_ring_ptr = ha->response_ring;
3902 } else
3903 ha->response_ring_ptr++;
3904 WRT_REG_WORD(&reg->mailbox5, ha->rsp_ring_index);
3905 }
3906 }
3907
3908 out:
3909 LEAVE("qla1280_isr");
3910}
3911
3912/*
3913 * qla1280_rst_aen
3914 * Processes asynchronous reset.
3915 *
3916 * Input:
3917 * ha = adapter block pointer.
3918 */
3919static void
3920qla1280_rst_aen(struct scsi_qla_host *ha)
3921{
3922 uint8_t bus;
3923
3924 ENTER("qla1280_rst_aen");
3925
3926 if (ha->flags.online && !ha->flags.reset_active &&
3927 !ha->flags.abort_isp_active) {
3928 ha->flags.reset_active = 1;
3929 while (ha->flags.reset_marker) {
3930 /* Issue marker command. */
3931 ha->flags.reset_marker = 0;
3932 for (bus = 0; bus < ha->ports &&
3933 !ha->flags.reset_marker; bus++) {
3934 if (ha->bus_settings[bus].reset_marker) {
3935 ha->bus_settings[bus].reset_marker = 0;
3936 qla1280_marker(ha, bus, 0, 0,
3937 MK_SYNC_ALL);
3938 }
3939 }
3940 }
3941 }
3942
3943 LEAVE("qla1280_rst_aen");
3944}
3945
3946
3947#if LINUX_VERSION_CODE < 0x020500
3948/*
3949 *
3950 */
3951static void
3952qla1280_get_target_options(struct scsi_cmnd *cmd, struct scsi_qla_host *ha)
3953{
3954 unsigned char *result;
3955 struct nvram *n;
3956 int bus, target, lun;
3957
3958 bus = SCSI_BUS_32(cmd);
3959 target = SCSI_TCN_32(cmd);
3960 lun = SCSI_LUN_32(cmd);
3961
3962 /*
3963 * Make sure to not touch anything if someone is using the
3964 * sg interface.
3965 */
3966 if (cmd->use_sg || (CMD_RESULT(cmd) >> 16) != DID_OK || lun)
3967 return;
3968
3969 result = cmd->request_buffer;
3970 n = &ha->nvram;
3971
3972 n->bus[bus].target[target].parameter.f.enable_wide = 0;
3973 n->bus[bus].target[target].parameter.f.enable_sync = 0;
3974 n->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 0;
3975
3976 if (result[7] & 0x60)
3977 n->bus[bus].target[target].parameter.f.enable_wide = 1;
3978 if (result[7] & 0x10)
3979 n->bus[bus].target[target].parameter.f.enable_sync = 1;
3980 if ((result[2] >= 3) && (result[4] + 5 > 56) &&
3981 (result[56] & 0x4))
3982 n->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 1;
3983
3984 dprintk(2, "get_target_options(): wide %i, sync %i, ppr %i\n",
3985 n->bus[bus].target[target].parameter.f.enable_wide,
3986 n->bus[bus].target[target].parameter.f.enable_sync,
3987 n->bus[bus].target[target].ppr_1x160.flags.enable_ppr);
3988}
3989#endif
3990
3991/*
3992 * qla1280_status_entry
3993 * Processes received ISP status entry.
3994 *
3995 * Input:
3996 * ha = adapter block pointer.
3997 * pkt = entry pointer.
3998 * done_q = done queue.
3999 */
4000static void
4001qla1280_status_entry(struct scsi_qla_host *ha, struct response *pkt,
4002 struct list_head *done_q)
4003{
4004 unsigned int bus, target, lun;
4005 int sense_sz;
4006 struct srb *sp;
4007 struct scsi_cmnd *cmd;
4008 uint32_t handle = le32_to_cpu(pkt->handle);
4009 uint16_t scsi_status = le16_to_cpu(pkt->scsi_status);
4010 uint16_t comp_status = le16_to_cpu(pkt->comp_status);
4011
4012 ENTER("qla1280_status_entry");
4013
4014 /* Validate handle. */
4015 if (handle < MAX_OUTSTANDING_COMMANDS)
4016 sp = ha->outstanding_cmds[handle];
4017 else
4018 sp = NULL;
4019
4020 if (!sp) {
4021 printk(KERN_WARNING "qla1280: Status Entry invalid handle\n");
4022 goto out;
4023 }
4024
4025 /* Free outstanding command slot. */
4026 ha->outstanding_cmds[handle] = NULL;
4027
4028 cmd = sp->cmd;
4029
4030 /* Generate LU queue on cntrl, target, LUN */
4031 bus = SCSI_BUS_32(cmd);
4032 target = SCSI_TCN_32(cmd);
4033 lun = SCSI_LUN_32(cmd);
4034
4035 if (comp_status || scsi_status) {
4036 dprintk(3, "scsi: comp_status = 0x%x, scsi_status = "
4037 "0x%x, handle = 0x%x\n", comp_status,
4038 scsi_status, handle);
4039 }
4040
4041 /* Target busy */
4042 if (scsi_status & SS_BUSY_CONDITION &&
4043 scsi_status != SS_RESERVE_CONFLICT) {
4044 CMD_RESULT(cmd) =
4045 DID_BUS_BUSY << 16 | (scsi_status & 0xff);
4046 } else {
4047
4048 /* Save ISP completion status */
4049 CMD_RESULT(cmd) = qla1280_return_status(pkt, cmd);
4050
4051 if (scsi_status & SS_CHECK_CONDITION) {
4052 if (comp_status != CS_ARS_FAILED) {
4053 uint16_t req_sense_length =
4054 le16_to_cpu(pkt->req_sense_length);
4055 if (req_sense_length < CMD_SNSLEN(cmd))
4056 sense_sz = req_sense_length;
4057 else
4058 /*
4059 * scsi_cmnd->sense_buffer is
4060 * 64 bytes, why only copy 63?
4061 * This looks wrong! /Jes
4062 */
4063 sense_sz = CMD_SNSLEN(cmd) - 1;
4064
4065 memcpy(cmd->sense_buffer,
4066 &pkt->req_sense_data, sense_sz);
4067 } else
4068 sense_sz = 0;
4069 memset(cmd->sense_buffer + sense_sz, 0,
4070 sizeof(cmd->sense_buffer) - sense_sz);
4071
4072 dprintk(2, "qla1280_status_entry: Check "
4073 "condition Sense data, b %i, t %i, "
4074 "l %i\n", bus, target, lun);
4075 if (sense_sz)
4076 qla1280_dump_buffer(2,
4077 (char *)cmd->sense_buffer,
4078 sense_sz);
4079 }
4080 }
4081
4082 /* Place command on done queue. */
4083 list_add_tail(&sp->list, done_q);
4084 out:
4085 LEAVE("qla1280_status_entry");
4086}
4087
4088/*
4089 * qla1280_error_entry
4090 * Processes error entry.
4091 *
4092 * Input:
4093 * ha = adapter block pointer.
4094 * pkt = entry pointer.
4095 * done_q = done queue.
4096 */
4097static void
4098qla1280_error_entry(struct scsi_qla_host *ha, struct response *pkt,
4099 struct list_head *done_q)
4100{
4101 struct srb *sp;
4102 uint32_t handle = le32_to_cpu(pkt->handle);
4103
4104 ENTER("qla1280_error_entry");
4105
4106 if (pkt->entry_status & BIT_3)
4107 dprintk(2, "qla1280_error_entry: BAD PAYLOAD flag error\n");
4108 else if (pkt->entry_status & BIT_2)
4109 dprintk(2, "qla1280_error_entry: BAD HEADER flag error\n");
4110 else if (pkt->entry_status & BIT_1)
4111 dprintk(2, "qla1280_error_entry: FULL flag error\n");
4112 else
4113 dprintk(2, "qla1280_error_entry: UNKNOWN flag error\n");
4114
4115 /* Validate handle. */
4116 if (handle < MAX_OUTSTANDING_COMMANDS)
4117 sp = ha->outstanding_cmds[handle];
4118 else
4119 sp = NULL;
4120
4121 if (sp) {
4122 /* Free outstanding command slot. */
4123 ha->outstanding_cmds[handle] = NULL;
4124
4125 /* Bad payload or header */
4126 if (pkt->entry_status & (BIT_3 + BIT_2)) {
4127 /* Bad payload or header, set error status. */
4128 /* CMD_RESULT(sp->cmd) = CS_BAD_PAYLOAD; */
4129 CMD_RESULT(sp->cmd) = DID_ERROR << 16;
4130 } else if (pkt->entry_status & BIT_1) { /* FULL flag */
4131 CMD_RESULT(sp->cmd) = DID_BUS_BUSY << 16;
4132 } else {
4133 /* Set error status. */
4134 CMD_RESULT(sp->cmd) = DID_ERROR << 16;
4135 }
4136
4137 /* Place command on done queue. */
4138 list_add_tail(&sp->list, done_q);
4139 }
4140#ifdef QLA_64BIT_PTR
4141 else if (pkt->entry_type == COMMAND_A64_TYPE) {
4142 printk(KERN_WARNING "!qla1280: Error Entry invalid handle");
4143 }
4144#endif
4145
4146 LEAVE("qla1280_error_entry");
4147}
4148
4149/*
4150 * qla1280_abort_isp
4151 * Resets ISP and aborts all outstanding commands.
4152 *
4153 * Input:
4154 * ha = adapter block pointer.
4155 *
4156 * Returns:
4157 * 0 = success
4158 */
4159static int
4160qla1280_abort_isp(struct scsi_qla_host *ha)
4161{
4162 struct device_reg __iomem *reg = ha->iobase;
4163 struct srb *sp;
4164 int status = 0;
4165 int cnt;
4166 int bus;
4167
4168 ENTER("qla1280_abort_isp");
4169
4170 if (ha->flags.abort_isp_active || !ha->flags.online)
4171 goto out;
4172
4173 ha->flags.abort_isp_active = 1;
4174
4175 /* Disable ISP interrupts. */
4176 qla1280_disable_intrs(ha);
4177 WRT_REG_WORD(&reg->host_cmd, HC_PAUSE_RISC);
4178 RD_REG_WORD(&reg->id_l);
4179
4180 printk(KERN_INFO "scsi(%li): dequeuing outstanding commands\n",
4181 ha->host_no);
4182 /* Dequeue all commands in outstanding command list. */
4183 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
4184 struct scsi_cmnd *cmd;
4185 sp = ha->outstanding_cmds[cnt];
4186 if (sp) {
4187
4188 cmd = sp->cmd;
4189 CMD_RESULT(cmd) = DID_RESET << 16;
4190
4191 sp->cmd = NULL;
4192 ha->outstanding_cmds[cnt] = NULL;
4193
4194 (*cmd->scsi_done)(cmd);
4195
4196 sp->flags = 0;
4197 }
4198 }
4199
4200 status = qla1280_load_firmware(ha);
4201 if (status)
4202 goto out;
4203
4204 /* Setup adapter based on NVRAM parameters. */
4205 qla1280_nvram_config (ha);
4206
4207 status = qla1280_init_rings(ha);
4208 if (status)
4209 goto out;
4210
4211 /* Issue SCSI reset. */
4212 for (bus = 0; bus < ha->ports; bus++)
4213 qla1280_bus_reset(ha, bus);
4214
4215 ha->flags.abort_isp_active = 0;
4216 out:
4217 if (status) {
4218 printk(KERN_WARNING
4219 "qla1280: ISP error recovery failed, board disabled");
4220 qla1280_reset_adapter(ha);
4221 dprintk(2, "qla1280_abort_isp: **** FAILED ****\n");
4222 }
4223
4224 LEAVE("qla1280_abort_isp");
4225 return status;
4226}
4227
4228
4229/*
4230 * qla1280_debounce_register
4231 * Debounce register.
4232 *
4233 * Input:
4234 * port = register address.
4235 *
4236 * Returns:
4237 * register value.
4238 */
4239static u16
4240qla1280_debounce_register(volatile u16 __iomem * addr)
4241{
4242 volatile u16 ret;
4243 volatile u16 ret2;
4244
4245 ret = RD_REG_WORD(addr);
4246 ret2 = RD_REG_WORD(addr);
4247
4248 if (ret == ret2)
4249 return ret;
4250
4251 do {
4252 cpu_relax();
4253 ret = RD_REG_WORD(addr);
4254 ret2 = RD_REG_WORD(addr);
4255 } while (ret != ret2);
4256
4257 return ret;
4258}
4259
4260
4261/************************************************************************
4262 * qla1280_check_for_dead_scsi_bus *
4263 * *
4264 * This routine checks for a dead SCSI bus *
4265 ************************************************************************/
4266#define SET_SXP_BANK 0x0100
4267#define SCSI_PHASE_INVALID 0x87FF
4268static int
4269qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *ha, unsigned int bus)
4270{
4271 uint16_t config_reg, scsi_control;
4272 struct device_reg __iomem *reg = ha->iobase;
4273
4274 if (ha->bus_settings[bus].scsi_bus_dead) {
4275 WRT_REG_WORD(&reg->host_cmd, HC_PAUSE_RISC);
4276 config_reg = RD_REG_WORD(&reg->cfg_1);
4277 WRT_REG_WORD(&reg->cfg_1, SET_SXP_BANK);
4278 scsi_control = RD_REG_WORD(&reg->scsiControlPins);
4279 WRT_REG_WORD(&reg->cfg_1, config_reg);
4280 WRT_REG_WORD(&reg->host_cmd, HC_RELEASE_RISC);
4281
4282 if (scsi_control == SCSI_PHASE_INVALID) {
4283 ha->bus_settings[bus].scsi_bus_dead = 1;
4284#if 0
4285 CMD_RESULT(cp) = DID_NO_CONNECT << 16;
4286 CMD_HANDLE(cp) = INVALID_HANDLE;
4287 /* ha->actthreads--; */
4288
4289 (*(cp)->scsi_done)(cp);
4290#endif
4291 return 1; /* bus is dead */
4292 } else {
4293 ha->bus_settings[bus].scsi_bus_dead = 0;
4294 ha->bus_settings[bus].failed_reset_count = 0;
4295 }
4296 }
4297 return 0; /* bus is not dead */
4298}
4299
4300static void
4301qla1280_get_target_parameters(struct scsi_qla_host *ha,
4302 struct scsi_device *device)
4303{
4304 uint16_t mb[MAILBOX_REGISTER_COUNT];
4305 int bus, target, lun;
4306
4307 bus = device->channel;
4308 target = device->id;
4309 lun = device->lun;
4310
4311
4312 mb[0] = MBC_GET_TARGET_PARAMETERS;
4313 mb[1] = (uint16_t) (bus ? target | BIT_7 : target);
4314 mb[1] <<= 8;
4315 qla1280_mailbox_command(ha, BIT_6 | BIT_3 | BIT_2 | BIT_1 | BIT_0,
4316 &mb[0]);
4317
4318 printk(KERN_INFO "scsi(%li:%d:%d:%d):", ha->host_no, bus, target, lun);
4319
4320 if (mb[3] != 0) {
4321 printk(" Sync: period %d, offset %d",
4322 (mb[3] & 0xff), (mb[3] >> 8));
4323 if (mb[2] & BIT_13)
4324 printk(", Wide");
4325 if ((mb[2] & BIT_5) && ((mb[6] >> 8) & 0xff) >= 2)
4326 printk(", DT");
4327 } else
4328 printk(" Async");
4329
4330 if (DEV_SIMPLE_TAGS(device))
4331 printk(", Tagged queuing: depth %d", device->queue_depth);
4332 printk("\n");
4333}
4334
4335
4336#if DEBUG_QLA1280
4337static void
4338__qla1280_dump_buffer(char *b, int size)
4339{
4340 int cnt;
4341 u8 c;
4342
4343 printk(KERN_DEBUG " 0 1 2 3 4 5 6 7 8 9 Ah "
4344 "Bh Ch Dh Eh Fh\n");
4345 printk(KERN_DEBUG "---------------------------------------------"
4346 "------------------\n");
4347
4348 for (cnt = 0; cnt < size;) {
4349 c = *b++;
4350
4351 printk("0x%02x", c);
4352 cnt++;
4353 if (!(cnt % 16))
4354 printk("\n");
4355 else
4356 printk(" ");
4357 }
4358 if (cnt % 16)
4359 printk("\n");
4360}
4361
4362/**************************************************************************
4363 * ql1280_print_scsi_cmd
4364 *
4365 **************************************************************************/
4366static void
4367__qla1280_print_scsi_cmd(struct scsi_cmnd *cmd)
4368{
4369 struct scsi_qla_host *ha;
4370 struct Scsi_Host *host = CMD_HOST(cmd);
4371 struct srb *sp;
4372 /* struct scatterlist *sg; */
4373
4374 int i;
4375 ha = (struct scsi_qla_host *)host->hostdata;
4376
4377 sp = (struct srb *)CMD_SP(cmd);
4378 printk("SCSI Command @= 0x%p, Handle=0x%p\n", cmd, CMD_HANDLE(cmd));
4379 printk(" chan=%d, target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n",
4380 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd),
4381 CMD_CDBLEN(cmd));
4382 printk(" CDB = ");
4383 for (i = 0; i < cmd->cmd_len; i++) {
4384 printk("0x%02x ", cmd->cmnd[i]);
4385 }
4386 printk(" seg_cnt =%d\n", cmd->use_sg);
4387 printk(" request buffer=0x%p, request buffer len=0x%x\n",
4388 cmd->request_buffer, cmd->request_bufflen);
4389 /* if (cmd->use_sg)
4390 {
4391 sg = (struct scatterlist *) cmd->request_buffer;
4392 printk(" SG buffer: \n");
4393 qla1280_dump_buffer(1, (char *)sg, (cmd->use_sg*sizeof(struct scatterlist)));
4394 } */
4395 printk(" tag=%d, transfersize=0x%x \n",
4396 cmd->tag, cmd->transfersize);
4397 printk(" Pid=%li, SP=0x%p\n", cmd->pid, CMD_SP(cmd));
4398 printk(" underflow size = 0x%x, direction=0x%x\n",
4399 cmd->underflow, cmd->sc_data_direction);
4400}
4401
4402/**************************************************************************
4403 * ql1280_dump_device
4404 *
4405 **************************************************************************/
4406static void
4407ql1280_dump_device(struct scsi_qla_host *ha)
4408{
4409
4410 struct scsi_cmnd *cp;
4411 struct srb *sp;
4412 int i;
4413
4414 printk(KERN_DEBUG "Outstanding Commands on controller:\n");
4415
4416 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
4417 if ((sp = ha->outstanding_cmds[i]) == NULL)
4418 continue;
4419 if ((cp = sp->cmd) == NULL)
4420 continue;
4421 qla1280_print_scsi_cmd(1, cp);
4422 }
4423}
4424#endif
4425
4426
4427enum tokens {
4428 TOKEN_NVRAM,
4429 TOKEN_SYNC,
4430 TOKEN_WIDE,
4431 TOKEN_PPR,
4432 TOKEN_VERBOSE,
4433 TOKEN_DEBUG,
4434};
4435
4436struct setup_tokens {
4437 char *token;
4438 int val;
4439};
4440
4441static struct setup_tokens setup_token[] __initdata =
4442{
4443 { "nvram", TOKEN_NVRAM },
4444 { "sync", TOKEN_SYNC },
4445 { "wide", TOKEN_WIDE },
4446 { "ppr", TOKEN_PPR },
4447 { "verbose", TOKEN_VERBOSE },
4448 { "debug", TOKEN_DEBUG },
4449};
4450
4451
4452/**************************************************************************
4453 * qla1280_setup
4454 *
4455 * Handle boot parameters. This really needs to be changed so one
4456 * can specify per adapter parameters.
4457 **************************************************************************/
4458static int __init
4459qla1280_setup(char *s)
4460{
4461 char *cp, *ptr;
4462 unsigned long val;
4463 int toke;
4464
4465 cp = s;
4466
4467 while (cp && (ptr = strchr(cp, ':'))) {
4468 ptr++;
4469 if (!strcmp(ptr, "yes")) {
4470 val = 0x10000;
4471 ptr += 3;
4472 } else if (!strcmp(ptr, "no")) {
4473 val = 0;
4474 ptr += 2;
4475 } else
4476 val = simple_strtoul(ptr, &ptr, 0);
4477
4478 switch ((toke = qla1280_get_token(cp))) {
4479 case TOKEN_NVRAM:
4480 if (!val)
4481 driver_setup.no_nvram = 1;
4482 break;
4483 case TOKEN_SYNC:
4484 if (!val)
4485 driver_setup.no_sync = 1;
4486 else if (val != 0x10000)
4487 driver_setup.sync_mask = val;
4488 break;
4489 case TOKEN_WIDE:
4490 if (!val)
4491 driver_setup.no_wide = 1;
4492 else if (val != 0x10000)
4493 driver_setup.wide_mask = val;
4494 break;
4495 case TOKEN_PPR:
4496 if (!val)
4497 driver_setup.no_ppr = 1;
4498 else if (val != 0x10000)
4499 driver_setup.ppr_mask = val;
4500 break;
4501 case TOKEN_VERBOSE:
4502 qla1280_verbose = val;
4503 break;
4504 default:
4505 printk(KERN_INFO "qla1280: unknown boot option %s\n",
4506 cp);
4507 }
4508
4509 cp = strchr(ptr, ';');
4510 if (cp)
4511 cp++;
4512 else {
4513 break;
4514 }
4515 }
4516 return 1;
4517}
4518
4519
4520static int
4521qla1280_get_token(char *str)
4522{
4523 char *sep;
4524 long ret = -1;
4525 int i, len;
4526
4527 len = sizeof(setup_token)/sizeof(struct setup_tokens);
4528
4529 sep = strchr(str, ':');
4530
4531 if (sep) {
4532 for (i = 0; i < len; i++){
4533
4534 if (!strncmp(setup_token[i].token, str, (sep - str))) {
4535 ret = setup_token[i].val;
4536 break;
4537 }
4538 }
4539 }
4540
4541 return ret;
4542}
4543
4544#if LINUX_VERSION_CODE >= 0x020600
4545static struct scsi_host_template qla1280_driver_template = {
4546 .module = THIS_MODULE,
4547 .proc_name = "qla1280",
4548 .name = "Qlogic ISP 1280/12160",
4549 .info = qla1280_info,
4550 .slave_configure = qla1280_slave_configure,
4551 .queuecommand = qla1280_queuecommand,
4552 .eh_abort_handler = qla1280_eh_abort,
4553 .eh_device_reset_handler= qla1280_eh_device_reset,
4554 .eh_bus_reset_handler = qla1280_eh_bus_reset,
4555 .eh_host_reset_handler = qla1280_eh_adapter_reset,
4556 .bios_param = qla1280_biosparam,
4557 .can_queue = 0xfffff,
4558 .this_id = -1,
4559 .sg_tablesize = SG_ALL,
4560 .cmd_per_lun = 1,
4561 .use_clustering = ENABLE_CLUSTERING,
4562};
4563#else
4564static Scsi_Host_Template qla1280_driver_template = {
4565 .proc_name = "qla1280",
4566 .name = "Qlogic ISP 1280/12160",
4567 .detect = qla1280_detect,
4568 .release = qla1280_release,
4569 .info = qla1280_info,
4570 .queuecommand = qla1280_queuecommand,
4571 .eh_abort_handler = qla1280_eh_abort,
4572 .eh_device_reset_handler= qla1280_eh_device_reset,
4573 .eh_bus_reset_handler = qla1280_eh_bus_reset,
4574 .eh_host_reset_handler = qla1280_eh_adapter_reset,
4575 .bios_param = qla1280_biosparam_old,
4576 .can_queue = 0xfffff,
4577 .this_id = -1,
4578 .sg_tablesize = SG_ALL,
4579 .cmd_per_lun = 1,
4580 .use_clustering = ENABLE_CLUSTERING,
4581 .use_new_eh_code = 1,
4582};
4583#endif
4584
4585static int __devinit
4586qla1280_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
4587{
4588 int devnum = id->driver_data;
4589 struct qla_boards *bdp = &ql1280_board_tbl[devnum];
4590 struct Scsi_Host *host;
4591 struct scsi_qla_host *ha;
4592 int error = -ENODEV;
4593
4594 /* Bypass all AMI SUBSYS VENDOR IDs */
4595 if (pdev->subsystem_vendor == PCI_VENDOR_ID_AMI) {
4596 printk(KERN_INFO
4597 "qla1280: Skipping AMI SubSys Vendor ID Chip\n");
4598 goto error;
4599 }
4600
4601 printk(KERN_INFO "qla1280: %s found on PCI bus %i, dev %i\n",
4602 bdp->name, pdev->bus->number, PCI_SLOT(pdev->devfn));
4603
4604 if (pci_enable_device(pdev)) {
4605 printk(KERN_WARNING
4606 "qla1280: Failed to enabled pci device, aborting.\n");
4607 goto error;
4608 }
4609
4610 pci_set_master(pdev);
4611
4612 error = -ENOMEM;
4613 host = scsi_host_alloc(&qla1280_driver_template, sizeof(*ha));
4614 if (!host) {
4615 printk(KERN_WARNING
4616 "qla1280: Failed to register host, aborting.\n");
4617 goto error_disable_device;
4618 }
4619
4620 ha = (struct scsi_qla_host *)host->hostdata;
4621 memset(ha, 0, sizeof(struct scsi_qla_host));
4622
4623 ha->pdev = pdev;
4624 ha->devnum = devnum; /* specifies microcode load address */
4625
4626#ifdef QLA_64BIT_PTR
4627 if (pci_set_dma_mask(ha->pdev, (dma_addr_t) ~ 0ULL)) {
4628 if (pci_set_dma_mask(ha->pdev, 0xffffffff)) {
4629 printk(KERN_WARNING "scsi(%li): Unable to set a "
4630 " suitable DMA mask - aboring\n", ha->host_no);
4631 error = -ENODEV;
4632 goto error_free_irq;
4633 }
4634 } else
4635 dprintk(2, "scsi(%li): 64 Bit PCI Addressing Enabled\n",
4636 ha->host_no);
4637#else
4638 if (pci_set_dma_mask(ha->pdev, 0xffffffff)) {
4639 printk(KERN_WARNING "scsi(%li): Unable to set a "
4640 " suitable DMA mask - aboring\n", ha->host_no);
4641 error = -ENODEV;
4642 goto error_free_irq;
4643 }
4644#endif
4645
4646 ha->request_ring = pci_alloc_consistent(ha->pdev,
4647 ((REQUEST_ENTRY_CNT + 1) * (sizeof(request_t))),
4648 &ha->request_dma);
4649 if (!ha->request_ring) {
4650 printk(KERN_INFO "qla1280: Failed to get request memory\n");
4651 goto error_put_host;
4652 }
4653
4654 ha->response_ring = pci_alloc_consistent(ha->pdev,
4655 ((RESPONSE_ENTRY_CNT + 1) * (sizeof(struct response))),
4656 &ha->response_dma);
4657 if (!ha->response_ring) {
4658 printk(KERN_INFO "qla1280: Failed to get response memory\n");
4659 goto error_free_request_ring;
4660 }
4661
4662 ha->ports = bdp->numPorts;
4663
4664 ha->host = host;
4665 ha->host_no = host->host_no;
4666
4667 host->irq = pdev->irq;
4668 host->max_channel = bdp->numPorts - 1;
4669 host->max_lun = MAX_LUNS - 1;
4670 host->max_id = MAX_TARGETS;
4671 host->max_sectors = 1024;
4672 host->unique_id = host->host_no;
4673
4674#if LINUX_VERSION_CODE < 0x020545
4675 host->select_queue_depths = qla1280_select_queue_depth;
4676#endif
4677
4678 error = -ENODEV;
4679
4680#if MEMORY_MAPPED_IO
4681 ha->mmpbase = ioremap(pci_resource_start(ha->pdev, 1),
4682 pci_resource_len(ha->pdev, 1));
4683 if (!ha->mmpbase) {
4684 printk(KERN_INFO "qla1280: Unable to map I/O memory\n");
4685 goto error_free_response_ring;
4686 }
4687
4688 host->base = (unsigned long)ha->mmpbase;
4689 ha->iobase = (struct device_reg __iomem *)ha->mmpbase;
4690#else
4691 host->io_port = pci_resource_start(ha->pdev, 0);
4692 if (!request_region(host->io_port, 0xff, "qla1280")) {
4693 printk(KERN_INFO "qla1280: Failed to reserve i/o region "
4694 "0x%04lx-0x%04lx - already in use\n",
4695 host->io_port, host->io_port + 0xff);
4696 goto error_free_response_ring;
4697 }
4698
4699 ha->iobase = (struct device_reg *)host->io_port;
4700#endif
4701
4702 INIT_LIST_HEAD(&ha->done_q);
4703
4704 /* Disable ISP interrupts. */
4705 qla1280_disable_intrs(ha);
4706
4707 if (request_irq(pdev->irq, qla1280_intr_handler, SA_SHIRQ,
4708 "qla1280", ha)) {
4709 printk("qla1280 : Failed to reserve interrupt %d already "
4710 "in use\n", pdev->irq);
4711 goto error_release_region;
4712 }
4713
4714 /* load the F/W, read paramaters, and init the H/W */
4715 if (qla1280_initialize_adapter(ha)) {
4716 printk(KERN_INFO "qla1x160: Failed to initialize adapter\n");
4717 goto error_free_irq;
4718 }
4719
4720 /* set our host ID (need to do something about our two IDs) */
4721 host->this_id = ha->bus_settings[0].id;
4722
4723 pci_set_drvdata(pdev, host);
4724
4725#if LINUX_VERSION_CODE >= 0x020600
4726 error = scsi_add_host(host, &pdev->dev);
4727 if (error)
4728 goto error_disable_adapter;
4729 scsi_scan_host(host);
4730#else
4731 scsi_set_pci_device(host, pdev);
4732#endif
4733
4734 return 0;
4735
4736#if LINUX_VERSION_CODE >= 0x020600
4737 error_disable_adapter:
4738 WRT_REG_WORD(&ha->iobase->ictrl, 0);
4739#endif
4740 error_free_irq:
4741 free_irq(pdev->irq, ha);
4742 error_release_region:
4743#if MEMORY_MAPPED_IO
4744 iounmap(ha->mmpbase);
4745#else
4746 release_region(host->io_port, 0xff);
4747#endif
4748 error_free_response_ring:
4749 pci_free_consistent(ha->pdev,
4750 ((RESPONSE_ENTRY_CNT + 1) * (sizeof(struct response))),
4751 ha->response_ring, ha->response_dma);
4752 error_free_request_ring:
4753 pci_free_consistent(ha->pdev,
4754 ((REQUEST_ENTRY_CNT + 1) * (sizeof(request_t))),
4755 ha->request_ring, ha->request_dma);
4756 error_put_host:
4757 scsi_host_put(host);
4758 error_disable_device:
4759 pci_disable_device(pdev);
4760 error:
4761 return error;
4762}
4763
4764
4765static void __devexit
4766qla1280_remove_one(struct pci_dev *pdev)
4767{
4768 struct Scsi_Host *host = pci_get_drvdata(pdev);
4769 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
4770
4771#if LINUX_VERSION_CODE >= 0x020600
4772 scsi_remove_host(host);
4773#endif
4774
4775 WRT_REG_WORD(&ha->iobase->ictrl, 0);
4776
4777 free_irq(pdev->irq, ha);
4778
4779#if MEMORY_MAPPED_IO
4780 iounmap(ha->mmpbase);
4781#else
4782 release_region(host->io_port, 0xff);
4783#endif
4784
4785 pci_free_consistent(ha->pdev,
4786 ((REQUEST_ENTRY_CNT + 1) * (sizeof(request_t))),
4787 ha->request_ring, ha->request_dma);
4788 pci_free_consistent(ha->pdev,
4789 ((RESPONSE_ENTRY_CNT + 1) * (sizeof(struct response))),
4790 ha->response_ring, ha->response_dma);
4791
4792 pci_disable_device(pdev);
4793
4794 scsi_host_put(host);
4795}
4796
4797#if LINUX_VERSION_CODE >= 0x020600
4798static struct pci_driver qla1280_pci_driver = {
4799 .name = "qla1280",
4800 .id_table = qla1280_pci_tbl,
4801 .probe = qla1280_probe_one,
4802 .remove = __devexit_p(qla1280_remove_one),
4803};
4804
4805static int __init
4806qla1280_init(void)
4807{
4808 if (sizeof(struct srb) > sizeof(struct scsi_pointer)) {
4809 printk(KERN_WARNING
4810 "qla1280: struct srb too big, aborting\n");
4811 return -EINVAL;
4812 }
4813
4814#ifdef MODULE
4815 /*
4816 * If we are called as a module, the qla1280 pointer may not be null
4817 * and it would point to our bootup string, just like on the lilo
4818 * command line. IF not NULL, then process this config string with
4819 * qla1280_setup
4820 *
4821 * Boot time Options
4822 * To add options at boot time add a line to your lilo.conf file like:
4823 * append="qla1280=verbose,max_tags:{{255,255,255,255},{255,255,255,255}}"
4824 * which will result in the first four devices on the first two
4825 * controllers being set to a tagged queue depth of 32.
4826 */
4827 if (qla1280)
4828 qla1280_setup(qla1280);
4829#endif
4830
4831 return pci_module_init(&qla1280_pci_driver);
4832}
4833
4834static void __exit
4835qla1280_exit(void)
4836{
4837 pci_unregister_driver(&qla1280_pci_driver);
4838}
4839
4840module_init(qla1280_init);
4841module_exit(qla1280_exit);
4842
4843#else
4844# define driver_template qla1280_driver_template
4845# include "scsi_module.c"
4846#endif
4847
4848MODULE_AUTHOR("Qlogic & Jes Sorensen");
4849MODULE_DESCRIPTION("Qlogic ISP SCSI (qla1x80/qla1x160) driver");
4850MODULE_LICENSE("GPL");
4851MODULE_VERSION(QLA1280_VERSION);
4852
4853/*
4854 * Overrides for Emacs so that we almost follow Linus's tabbing style.
4855 * Emacs will notice this stuff at the end of the file and automatically
4856 * adjust the settings for this buffer only. This must remain at the end
4857 * of the file.
4858 * ---------------------------------------------------------------------------
4859 * Local variables:
4860 * c-basic-offset: 8
4861 * tab-width: 8
4862 * End:
4863 */
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-15 19:07:41 -0500