Merge with http://kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
[linux-2.6] / drivers / scsi / qla1280.c
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
456 typedef unsigned int sector_t;
457 #endif
458
459 static inline void
460 scsi_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 }
468 static inline struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *t, size_t s)
469 {
470         return scsi_register(t, s);
471 }
472 static 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
502 static int qla1280_probe_one(struct pci_dev *, const struct pci_device_id *);
503 static void qla1280_remove_one(struct pci_dev *);
504
505 /*
506  *  QLogic Driver Support Function Prototypes.
507  */
508 static void qla1280_done(struct scsi_qla_host *);
509 #if LINUX_VERSION_CODE < 0x020545
510 static void qla1280_get_target_options(struct scsi_cmnd *, struct scsi_qla_host *);
511 #endif
512 static int qla1280_get_token(char *);
513 static int qla1280_setup(char *s) __init;
514
515 /*
516  *  QLogic ISP1280 Hardware Support Function Prototypes.
517  */
518 static int qla1280_load_firmware(struct scsi_qla_host *);
519 static int qla1280_init_rings(struct scsi_qla_host *);
520 static int qla1280_nvram_config(struct scsi_qla_host *);
521 static int qla1280_mailbox_command(struct scsi_qla_host *,
522                                    uint8_t, uint16_t *);
523 static int qla1280_bus_reset(struct scsi_qla_host *, int);
524 static int qla1280_device_reset(struct scsi_qla_host *, int, int);
525 static int qla1280_abort_device(struct scsi_qla_host *, int, int, int);
526 static int qla1280_abort_command(struct scsi_qla_host *, struct srb *, int);
527 static int qla1280_abort_isp(struct scsi_qla_host *);
528 #ifdef QLA_64BIT_PTR
529 static int qla1280_64bit_start_scsi(struct scsi_qla_host *, struct srb *);
530 #else
531 static int qla1280_32bit_start_scsi(struct scsi_qla_host *, struct srb *);
532 #endif
533 static void qla1280_nv_write(struct scsi_qla_host *, uint16_t);
534 static void qla1280_poll(struct scsi_qla_host *);
535 static void qla1280_reset_adapter(struct scsi_qla_host *);
536 static void qla1280_marker(struct scsi_qla_host *, int, int, int, u8);
537 static void qla1280_isp_cmd(struct scsi_qla_host *);
538 static void qla1280_isr(struct scsi_qla_host *, struct list_head *);
539 static void qla1280_rst_aen(struct scsi_qla_host *);
540 static void qla1280_status_entry(struct scsi_qla_host *, struct response *,
541                                  struct list_head *);
542 static void qla1280_error_entry(struct scsi_qla_host *, struct response *,
543                                 struct list_head *);
544 static uint16_t qla1280_get_nvram_word(struct scsi_qla_host *, uint32_t);
545 static uint16_t qla1280_nvram_request(struct scsi_qla_host *, uint32_t);
546 static uint16_t qla1280_debounce_register(volatile uint16_t __iomem *);
547 static request_t *qla1280_req_pkt(struct scsi_qla_host *);
548 static int qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *,
549                                            unsigned int);
550 static void qla1280_get_target_parameters(struct scsi_qla_host *,
551                                            struct scsi_device *);
552 static int qla1280_set_target_parameters(struct scsi_qla_host *, int, int);
553
554
555 static struct qla_driver_setup driver_setup;
556
557 /*
558  * convert scsi data direction to request_t control flags
559  */
560 static inline uint16_t
561 qla1280_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
582 static void __qla1280_print_scsi_cmd(struct scsi_cmnd * cmd);
583 static 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
591 static char *qla1280;
592
593 /* insmod qla1280 options=verbose" */
594 module_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
629 struct 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 */
639 static 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         {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1020,
643                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
644         {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1080,
645                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
646         {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1240,
647                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
648         {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1280,
649                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
650         {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP10160,
651                 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
652         {0,}
653 };
654 MODULE_DEVICE_TABLE(pci, qla1280_pci_tbl);
655
656 static struct qla_boards ql1280_board_tbl[] = {
657         /* Name ,  Number of ports, FW details */
658         {"QLA12160", 2, &fw12160i_code01[0], &fw12160i_length01,
659          &fw12160i_addr01, &fw12160i_version_str[0]},
660         {"QLA1040", 1, &risc_code01[0], &risc_code_length01,
661          &risc_code_addr01, &firmware_version[0]},
662         {"QLA1080", 1, &fw1280ei_code01[0], &fw1280ei_length01,
663          &fw1280ei_addr01, &fw1280ei_version_str[0]},
664         {"QLA1240", 2, &fw1280ei_code01[0], &fw1280ei_length01,
665          &fw1280ei_addr01, &fw1280ei_version_str[0]},
666         {"QLA1280", 2, &fw1280ei_code01[0], &fw1280ei_length01,
667          &fw1280ei_addr01, &fw1280ei_version_str[0]},
668         {"QLA10160", 1, &fw12160i_code01[0], &fw12160i_length01,
669          &fw12160i_addr01, &fw12160i_version_str[0]},
670         {"        ", 0}
671 };
672
673 static int qla1280_verbose = 1;
674
675 #if DEBUG_QLA1280
676 static int ql_debug_level = 1;
677 #define dprintk(level, format, a...)    \
678         do { if (ql_debug_level >= level) printk(KERN_ERR format, ##a); } while(0)
679 #define qla1280_dump_buffer(level, buf, size)   \
680         if (ql_debug_level >= level) __qla1280_dump_buffer(buf, size)
681 #define qla1280_print_scsi_cmd(level, cmd)      \
682         if (ql_debug_level >= level) __qla1280_print_scsi_cmd(cmd)
683 #else
684 #define ql_debug_level                  0
685 #define dprintk(level, format, a...)    do{}while(0)
686 #define qla1280_dump_buffer(a, b, c)    do{}while(0)
687 #define qla1280_print_scsi_cmd(a, b)    do{}while(0)
688 #endif
689
690 #define ENTER(x)                dprintk(3, "qla1280 : Entering %s()\n", x);
691 #define LEAVE(x)                dprintk(3, "qla1280 : Leaving %s()\n", x);
692 #define ENTER_INTR(x)           dprintk(4, "qla1280 : Entering %s()\n", x);
693 #define LEAVE_INTR(x)           dprintk(4, "qla1280 : Leaving %s()\n", x);
694
695
696 static int qla1280_read_nvram(struct scsi_qla_host *ha)
697 {
698         uint16_t *wptr;
699         uint8_t chksum;
700         int cnt, i;
701         struct nvram *nv;
702
703         ENTER("qla1280_read_nvram");
704
705         if (driver_setup.no_nvram)
706                 return 1;
707
708         printk(KERN_INFO "scsi(%ld): Reading NVRAM\n", ha->host_no);
709
710         wptr = (uint16_t *)&ha->nvram;
711         nv = &ha->nvram;
712         chksum = 0;
713         for (cnt = 0; cnt < 3; cnt++) {
714                 *wptr = qla1280_get_nvram_word(ha, cnt);
715                 chksum += *wptr & 0xff;
716                 chksum += (*wptr >> 8) & 0xff;
717                 wptr++;
718         }
719
720         if (nv->id0 != 'I' || nv->id1 != 'S' ||
721             nv->id2 != 'P' || nv->id3 != ' ' || nv->version < 1) {
722                 dprintk(2, "Invalid nvram ID or version!\n");
723                 chksum = 1;
724         } else {
725                 for (; cnt < sizeof(struct nvram); cnt++) {
726                         *wptr = qla1280_get_nvram_word(ha, cnt);
727                         chksum += *wptr & 0xff;
728                         chksum += (*wptr >> 8) & 0xff;
729                         wptr++;
730                 }
731         }
732
733         dprintk(3, "qla1280_read_nvram: NVRAM Magic ID= %c %c %c %02x"
734                " version %i\n", nv->id0, nv->id1, nv->id2, nv->id3,
735                nv->version);
736
737
738         if (chksum) {
739                 if (!driver_setup.no_nvram)
740                         printk(KERN_WARNING "scsi(%ld): Unable to identify or "
741                                "validate NVRAM checksum, using default "
742                                "settings\n", ha->host_no);
743                 ha->nvram_valid = 0;
744         } else
745                 ha->nvram_valid = 1;
746
747         /* The firmware interface is, um, interesting, in that the
748          * actual firmware image on the chip is little endian, thus,
749          * the process of taking that image to the CPU would end up
750          * little endian.  However, the firmare interface requires it
751          * to be read a word (two bytes) at a time.
752          *
753          * The net result of this would be that the word (and
754          * doubleword) quantites in the firmware would be correct, but
755          * the bytes would be pairwise reversed.  Since most of the
756          * firmware quantites are, in fact, bytes, we do an extra
757          * le16_to_cpu() in the firmware read routine.
758          *
759          * The upshot of all this is that the bytes in the firmware
760          * are in the correct places, but the 16 and 32 bit quantites
761          * are still in little endian format.  We fix that up below by
762          * doing extra reverses on them */
763         nv->isp_parameter = cpu_to_le16(nv->isp_parameter);
764         nv->firmware_feature.w = cpu_to_le16(nv->firmware_feature.w);
765         for(i = 0; i < MAX_BUSES; i++) {
766                 nv->bus[i].selection_timeout = cpu_to_le16(nv->bus[i].selection_timeout);
767                 nv->bus[i].max_queue_depth = cpu_to_le16(nv->bus[i].max_queue_depth);
768         }
769         dprintk(1, "qla1280_read_nvram: Completed Reading NVRAM\n");
770         LEAVE("qla1280_read_nvram");
771
772         return chksum;
773 }
774
775 /**************************************************************************
776  *   qla1280_info
777  *     Return a string describing the driver.
778  **************************************************************************/
779 static const char *
780 qla1280_info(struct Scsi_Host *host)
781 {
782         static char qla1280_scsi_name_buffer[125];
783         char *bp;
784         struct scsi_qla_host *ha;
785         struct qla_boards *bdp;
786
787         bp = &qla1280_scsi_name_buffer[0];
788         ha = (struct scsi_qla_host *)host->hostdata;
789         bdp = &ql1280_board_tbl[ha->devnum];
790         memset(bp, 0, sizeof(qla1280_scsi_name_buffer));
791
792         sprintf (bp,
793                  "QLogic %s PCI to SCSI Host Adapter\n"
794                  "       Firmware version: %2d.%02d.%02d, Driver version %s",
795                  &bdp->name[0], bdp->fwver[0], bdp->fwver[1], bdp->fwver[2],
796                  QLA1280_VERSION);
797         return bp;
798 }
799
800 /**************************************************************************
801  *   qla1200_queuecommand
802  *     Queue a command to the controller.
803  *
804  * Note:
805  * The mid-level driver tries to ensures that queuecommand never gets invoked
806  * concurrently with itself or the interrupt handler (although the
807  * interrupt handler may call this routine as part of request-completion
808  * handling).   Unfortunely, it sometimes calls the scheduler in interrupt
809  * context which is a big NO! NO!.
810  **************************************************************************/
811 static int
812 qla1280_queuecommand(struct scsi_cmnd *cmd, void (*fn)(struct scsi_cmnd *))
813 {
814         struct Scsi_Host *host = cmd->device->host;
815         struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
816         struct srb *sp = (struct srb *)&cmd->SCp;
817         int status;
818
819         cmd->scsi_done = fn;
820         sp->cmd = cmd;
821         sp->flags = 0;
822
823         qla1280_print_scsi_cmd(5, cmd);
824
825 #ifdef QLA_64BIT_PTR
826         /*
827          * Using 64 bit commands if the PCI bridge doesn't support it is a
828          * bit wasteful, however this should really only happen if one's
829          * PCI controller is completely broken, like the BCM1250. For
830          * sane hardware this is not an issue.
831          */
832         status = qla1280_64bit_start_scsi(ha, sp);
833 #else
834         status = qla1280_32bit_start_scsi(ha, sp);
835 #endif
836         return status;
837 }
838
839 enum action {
840         ABORT_COMMAND,
841         ABORT_DEVICE,
842         DEVICE_RESET,
843         BUS_RESET,
844         ADAPTER_RESET,
845         FAIL
846 };
847
848 /* timer action for error action processor */
849 static void qla1280_error_wait_timeout(unsigned long __data)
850 {
851         struct scsi_cmnd *cmd = (struct scsi_cmnd *)__data;
852         struct srb *sp = (struct srb *)CMD_SP(cmd);
853
854         complete(sp->wait);
855 }
856
857 static void qla1280_mailbox_timeout(unsigned long __data)
858 {
859         struct scsi_qla_host *ha = (struct scsi_qla_host *)__data;
860         struct device_reg __iomem *reg;
861         reg = ha->iobase;
862
863         ha->mailbox_out[0] = RD_REG_WORD(&reg->mailbox0);
864         printk(KERN_ERR "scsi(%ld): mailbox timed out, mailbox0 %04x, "
865                "ictrl %04x, istatus %04x\n", ha->host_no, ha->mailbox_out[0],
866                RD_REG_WORD(&reg->ictrl), RD_REG_WORD(&reg->istatus));
867         complete(ha->mailbox_wait);
868 }
869
870 /**************************************************************************
871  * qla1200_error_action
872  *    The function will attempt to perform a specified error action and
873  *    wait for the results (or time out).
874  *
875  * Input:
876  *      cmd = Linux SCSI command packet of the command that cause the
877  *            bus reset.
878  *      action = error action to take (see action_t)
879  *
880  * Returns:
881  *      SUCCESS or FAILED
882  *
883  * Note:
884  *      Resetting the bus always succeeds - is has to, otherwise the
885  *      kernel will panic! Try a surgical technique - sending a BUS
886  *      DEVICE RESET message - on the offending target before pulling
887  *      the SCSI bus reset line.
888  **************************************************************************/
889 static int
890 qla1280_error_action(struct scsi_cmnd *cmd, enum action action)
891 {
892         struct scsi_qla_host *ha;
893         int bus, target, lun;
894         struct srb *sp;
895         uint16_t data;
896         unsigned char *handle;
897         int result, i;
898         DECLARE_COMPLETION(wait);
899         struct timer_list timer;
900
901         ha = (struct scsi_qla_host *)(CMD_HOST(cmd)->hostdata);
902
903         dprintk(4, "error_action %i, istatus 0x%04x\n", action,
904                 RD_REG_WORD(&ha->iobase->istatus));
905
906         dprintk(4, "host_cmd 0x%04x, ictrl 0x%04x, jiffies %li\n",
907                 RD_REG_WORD(&ha->iobase->host_cmd),
908                 RD_REG_WORD(&ha->iobase->ictrl), jiffies);
909
910         ENTER("qla1280_error_action");
911         if (qla1280_verbose)
912                 printk(KERN_INFO "scsi(%li): Resetting Cmnd=0x%p, "
913                        "Handle=0x%p, action=0x%x\n",
914                        ha->host_no, cmd, CMD_HANDLE(cmd), action);
915
916         if (cmd == NULL) {
917                 printk(KERN_WARNING "(scsi?:?:?:?) Reset called with NULL "
918                        "si_Cmnd pointer, failing.\n");
919                 LEAVE("qla1280_error_action");
920                 return FAILED;
921         }
922
923         ha = (struct scsi_qla_host *)cmd->device->host->hostdata;
924         sp = (struct srb *)CMD_SP(cmd);
925         handle = CMD_HANDLE(cmd);
926
927         /* Check for pending interrupts. */
928         data = qla1280_debounce_register(&ha->iobase->istatus);
929         /*
930          * The io_request_lock is held when the reset handler is called, hence
931          * the interrupt handler cannot be running in parallel as it also
932          * grabs the lock. /Jes
933          */
934         if (data & RISC_INT)
935                 qla1280_isr(ha, &ha->done_q);
936
937         /*
938          * Determine the suggested action that the mid-level driver wants
939          * us to perform.
940          */
941         if (handle == (unsigned char *)INVALID_HANDLE || handle == NULL) {
942                 if(action == ABORT_COMMAND) {
943                         /* we never got this command */
944                         printk(KERN_INFO "qla1280: Aborting a NULL handle\n");
945                         return SUCCESS; /* no action - we don't have command */
946                 }
947         } else {
948                 sp->wait = &wait;
949         }
950
951         bus = SCSI_BUS_32(cmd);
952         target = SCSI_TCN_32(cmd);
953         lun = SCSI_LUN_32(cmd);
954
955         /* Overloading result.  Here it means the success or fail of the
956          * *issue* of the action.  When we return from the routine, it must
957          * mean the actual success or fail of the action */
958         result = FAILED;
959         switch (action) {
960         case FAIL:
961                 break;
962
963         case ABORT_COMMAND:
964                 if ((sp->flags & SRB_ABORT_PENDING)) {
965                         printk(KERN_WARNING
966                                "scsi(): Command has a pending abort "
967                                "message - ABORT_PENDING.\n");
968                         /* This should technically be impossible since we
969                          * now wait for abort completion */
970                         break;
971                 }
972
973                 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
974                         if (sp == ha->outstanding_cmds[i]) {
975                                 dprintk(1, "qla1280: RISC aborting command\n");
976                                 if (qla1280_abort_command(ha, sp, i) == 0)
977                                         result = SUCCESS;
978                                 else {
979                                         /*
980                                          * Since we don't know what might
981                                          * have happend to the command, it
982                                          * is unsafe to remove it from the
983                                          * device's queue at this point.
984                                          * Wait and let the escalation
985                                          * process take care of it.
986                                          */
987                                         printk(KERN_WARNING
988                                                "scsi(%li:%i:%i:%i): Unable"
989                                                " to abort command!\n",
990                                                ha->host_no, bus, target, lun);
991                                 }
992                         }
993                 }
994                 break;
995
996         case ABORT_DEVICE:
997                 if (qla1280_verbose)
998                         printk(KERN_INFO
999                                "scsi(%ld:%d:%d:%d): Queueing abort device "
1000                                "command.\n", ha->host_no, bus, target, lun);
1001                 if (qla1280_abort_device(ha, bus, target, lun) == 0)
1002                         result = SUCCESS;
1003                 break;
1004
1005         case DEVICE_RESET:
1006                 if (qla1280_verbose)
1007                         printk(KERN_INFO
1008                                "scsi(%ld:%d:%d:%d): Queueing device reset "
1009                                "command.\n", ha->host_no, bus, target, lun);
1010                 if (qla1280_device_reset(ha, bus, target) == 0)
1011                         result = SUCCESS;
1012                 break;
1013
1014         case BUS_RESET:
1015                 if (qla1280_verbose)
1016                         printk(KERN_INFO "qla1280(%ld:%d): Issuing BUS "
1017                                "DEVICE RESET\n", ha->host_no, bus);
1018                 if (qla1280_bus_reset(ha, bus == 0))
1019                         result = SUCCESS;
1020
1021                 break;
1022
1023         case ADAPTER_RESET:
1024         default:
1025                 if (qla1280_verbose) {
1026                         printk(KERN_INFO
1027                                "scsi(%ld): Issued ADAPTER RESET\n",
1028                                ha->host_no);
1029                         printk(KERN_INFO "scsi(%ld): I/O processing will "
1030                                "continue automatically\n", ha->host_no);
1031                 }
1032                 ha->flags.reset_active = 1;
1033                 /*
1034                  * We restarted all of the commands automatically, so the
1035                  * mid-level code can expect completions momentitarily.
1036                  */
1037                 if (qla1280_abort_isp(ha) == 0)
1038                         result = SUCCESS;
1039
1040                 ha->flags.reset_active = 0;
1041         }
1042
1043         if (!list_empty(&ha->done_q))
1044                 qla1280_done(ha);
1045
1046         /* If we didn't manage to issue the action, or we have no
1047          * command to wait for, exit here */
1048         if (result == FAILED || handle == NULL ||
1049             handle == (unsigned char *)INVALID_HANDLE) {
1050                 /*
1051                  * Clear completion queue to avoid qla1280_done() trying
1052                  * to complete the command at a later stage after we
1053                  * have exited the current context
1054                  */
1055                 sp->wait = NULL;
1056                 goto leave;
1057         }
1058
1059         /* set up a timer just in case we're really jammed */
1060         init_timer(&timer);
1061         timer.expires = jiffies + 4*HZ;
1062         timer.data = (unsigned long)cmd;
1063         timer.function = qla1280_error_wait_timeout;
1064         add_timer(&timer);
1065
1066         /* wait for the action to complete (or the timer to expire) */
1067         spin_unlock_irq(HOST_LOCK);
1068         wait_for_completion(&wait);
1069         del_timer_sync(&timer);
1070         spin_lock_irq(HOST_LOCK);
1071         sp->wait = NULL;
1072
1073         /* the only action we might get a fail for is abort */
1074         if (action == ABORT_COMMAND) {
1075                 if(sp->flags & SRB_ABORTED)
1076                         result = SUCCESS;
1077                 else
1078                         result = FAILED;
1079         }
1080
1081  leave:
1082         dprintk(1, "RESET returning %d\n", result);
1083
1084         LEAVE("qla1280_error_action");
1085         return result;
1086 }
1087
1088 /**************************************************************************
1089  *   qla1280_abort
1090  *     Abort the specified SCSI command(s).
1091  **************************************************************************/
1092 static int
1093 qla1280_eh_abort(struct scsi_cmnd * cmd)
1094 {
1095         int rc;
1096
1097         spin_lock_irq(cmd->device->host->host_lock);
1098         rc = qla1280_error_action(cmd, ABORT_COMMAND);
1099         spin_unlock_irq(cmd->device->host->host_lock);
1100
1101         return rc;
1102 }
1103
1104 /**************************************************************************
1105  *   qla1280_device_reset
1106  *     Reset the specified SCSI device
1107  **************************************************************************/
1108 static int
1109 qla1280_eh_device_reset(struct scsi_cmnd *cmd)
1110 {
1111         int rc;
1112
1113         spin_lock_irq(cmd->device->host->host_lock);
1114         rc = qla1280_error_action(cmd, DEVICE_RESET);
1115         spin_unlock_irq(cmd->device->host->host_lock);
1116
1117         return rc;
1118 }
1119
1120 /**************************************************************************
1121  *   qla1280_bus_reset
1122  *     Reset the specified bus.
1123  **************************************************************************/
1124 static int
1125 qla1280_eh_bus_reset(struct scsi_cmnd *cmd)
1126 {
1127         int rc;
1128
1129         spin_lock_irq(cmd->device->host->host_lock);
1130         rc = qla1280_error_action(cmd, BUS_RESET);
1131         spin_unlock_irq(cmd->device->host->host_lock);
1132
1133         return rc;
1134 }
1135
1136 /**************************************************************************
1137  *   qla1280_adapter_reset
1138  *     Reset the specified adapter (both channels)
1139  **************************************************************************/
1140 static int
1141 qla1280_eh_adapter_reset(struct scsi_cmnd *cmd)
1142 {
1143         int rc;
1144
1145         spin_lock_irq(cmd->device->host->host_lock);
1146         rc = qla1280_error_action(cmd, ADAPTER_RESET);
1147         spin_unlock_irq(cmd->device->host->host_lock);
1148
1149         return rc;
1150 }
1151
1152 static int
1153 qla1280_biosparam(struct scsi_device *sdev, struct block_device *bdev,
1154                   sector_t capacity, int geom[])
1155 {
1156         int heads, sectors, cylinders;
1157
1158         heads = 64;
1159         sectors = 32;
1160         cylinders = (unsigned long)capacity / (heads * sectors);
1161         if (cylinders > 1024) {
1162                 heads = 255;
1163                 sectors = 63;
1164                 cylinders = (unsigned long)capacity / (heads * sectors);
1165                 /* if (cylinders > 1023)
1166                    cylinders = 1023; */
1167         }
1168
1169         geom[0] = heads;
1170         geom[1] = sectors;
1171         geom[2] = cylinders;
1172
1173         return 0;
1174 }
1175
1176 #if LINUX_VERSION_CODE < 0x020600
1177 static int
1178 qla1280_detect(struct scsi_host_template *template)
1179 {
1180         struct pci_device_id *id = &qla1280_pci_tbl[0];
1181         struct pci_dev *pdev = NULL;
1182         int num_hosts = 0;
1183
1184         if (sizeof(struct srb) > sizeof(Scsi_Pointer)) {
1185                 printk(KERN_WARNING
1186                        "qla1280: struct srb too big, aborting\n");
1187                 return 0;
1188         }
1189
1190         if ((DMA_BIDIRECTIONAL != PCI_DMA_BIDIRECTIONAL) ||
1191             (DMA_TO_DEVICE != PCI_DMA_TODEVICE) ||
1192             (DMA_FROM_DEVICE != PCI_DMA_FROMDEVICE) ||
1193             (DMA_NONE != PCI_DMA_NONE)) {
1194                 printk(KERN_WARNING
1195                        "qla1280: dma direction bits don't match\n");
1196                 return 0;
1197         }
1198
1199 #ifdef MODULE
1200         /*
1201          * If we are called as a module, the qla1280 pointer may not be null
1202          * and it would point to our bootup string, just like on the lilo
1203          * command line.  IF not NULL, then process this config string with
1204          * qla1280_setup
1205          *
1206          * Boot time Options
1207          * To add options at boot time add a line to your lilo.conf file like:
1208          * append="qla1280=verbose,max_tags:{{255,255,255,255},{255,255,255,255}}"
1209          * which will result in the first four devices on the first two
1210          * controllers being set to a tagged queue depth of 32.
1211          */
1212         if (qla1280)
1213                 qla1280_setup(qla1280);
1214 #endif
1215
1216         /* First Initialize QLA12160 on PCI Bus 1 Dev 2 */
1217         while ((pdev = pci_find_device(id->vendor, id->device, pdev))) {
1218                 if (pdev->bus->number == 1 && PCI_SLOT(pdev->devfn) == 2) {
1219                         if (!qla1280_probe_one(pdev, id))
1220                                 num_hosts++;
1221                 }
1222         }
1223
1224         pdev = NULL;
1225         /* Try and find each different type of adapter we support */
1226         for (id = &qla1280_pci_tbl[0]; id->device; id++) {
1227                 while ((pdev = pci_find_device(id->vendor, id->device, pdev))) {
1228                         /*
1229                          * skip QLA12160 already initialized on
1230                          * PCI Bus 1 Dev 2 since we already initialized
1231                          * and presented it
1232                          */
1233                         if (id->device == PCI_DEVICE_ID_QLOGIC_ISP12160 &&
1234                             pdev->bus->number == 1 &&
1235                             PCI_SLOT(pdev->devfn) == 2)
1236                                 continue;
1237
1238                         if (!qla1280_probe_one(pdev, id))
1239                                 num_hosts++;
1240                 }
1241         }
1242
1243         return num_hosts;
1244 }
1245
1246 /*
1247  * This looks a bit ugly as we could just pass down host to
1248  * qla1280_remove_one, but I want to keep qla1280_release purely a wrapper
1249  * around pci_driver::remove as used from 2.6 onwards.
1250  */
1251 static int
1252 qla1280_release(struct Scsi_Host *host)
1253 {
1254         struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
1255
1256         qla1280_remove_one(ha->pdev);
1257         return 0;
1258 }
1259
1260 static int
1261 qla1280_biosparam_old(Disk * disk, kdev_t dev, int geom[])
1262 {
1263         return qla1280_biosparam(disk->device, NULL, disk->capacity, geom);
1264 }
1265 #endif
1266  
1267 /* disable risc and host interrupts */
1268 static inline void
1269 qla1280_disable_intrs(struct scsi_qla_host *ha)
1270 {
1271         WRT_REG_WORD(&ha->iobase->ictrl, 0);
1272         RD_REG_WORD(&ha->iobase->ictrl);        /* PCI Posted Write flush */
1273 }
1274
1275 /* enable risc and host interrupts */
1276 static inline void
1277 qla1280_enable_intrs(struct scsi_qla_host *ha)
1278 {
1279         WRT_REG_WORD(&ha->iobase->ictrl, (ISP_EN_INT | ISP_EN_RISC));
1280         RD_REG_WORD(&ha->iobase->ictrl);        /* PCI Posted Write flush */
1281 }
1282
1283 /**************************************************************************
1284  * qla1280_intr_handler
1285  *   Handles the H/W interrupt
1286  **************************************************************************/
1287 static irqreturn_t
1288 qla1280_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
1289 {
1290         struct scsi_qla_host *ha;
1291         struct device_reg __iomem *reg;
1292         u16 data;
1293         int handled = 0;
1294
1295         ENTER_INTR ("qla1280_intr_handler");
1296         ha = (struct scsi_qla_host *)dev_id;
1297
1298         spin_lock(HOST_LOCK);
1299
1300         ha->isr_count++;
1301         reg = ha->iobase;
1302
1303         qla1280_disable_intrs(ha);
1304
1305         data = qla1280_debounce_register(&reg->istatus);
1306         /* Check for pending interrupts. */
1307         if (data & RISC_INT) {  
1308                 qla1280_isr(ha, &ha->done_q);
1309                 handled = 1;
1310         }
1311         if (!list_empty(&ha->done_q))
1312                 qla1280_done(ha);
1313
1314         spin_unlock(HOST_LOCK);
1315
1316         qla1280_enable_intrs(ha);
1317
1318         LEAVE_INTR("qla1280_intr_handler");
1319         return IRQ_RETVAL(handled);
1320 }
1321
1322
1323 static int
1324 qla1280_set_target_parameters(struct scsi_qla_host *ha, int bus, int target)
1325 {
1326         uint8_t mr;
1327         uint16_t mb[MAILBOX_REGISTER_COUNT];
1328         struct nvram *nv;
1329         int status, lun;
1330
1331         nv = &ha->nvram;
1332
1333         mr = BIT_3 | BIT_2 | BIT_1 | BIT_0;
1334
1335         /* Set Target Parameters. */
1336         mb[0] = MBC_SET_TARGET_PARAMETERS;
1337         mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
1338         mb[2] = nv->bus[bus].target[target].parameter.renegotiate_on_error << 8;
1339         mb[2] |= nv->bus[bus].target[target].parameter.stop_queue_on_check << 9;
1340         mb[2] |= nv->bus[bus].target[target].parameter.auto_request_sense << 10;
1341         mb[2] |= nv->bus[bus].target[target].parameter.tag_queuing << 11;
1342         mb[2] |= nv->bus[bus].target[target].parameter.enable_sync << 12;
1343         mb[2] |= nv->bus[bus].target[target].parameter.enable_wide << 13;
1344         mb[2] |= nv->bus[bus].target[target].parameter.parity_checking << 14;
1345         mb[2] |= nv->bus[bus].target[target].parameter.disconnect_allowed << 15;
1346
1347         if (IS_ISP1x160(ha)) {
1348                 mb[2] |= nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr << 5;
1349                 mb[3] = (nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8);
1350                 mb[6] = (nv->bus[bus].target[target].ppr_1x160.flags.ppr_options << 8) |
1351                          nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width;
1352                 mr |= BIT_6;
1353         } else {
1354                 mb[3] = (nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8);
1355         }
1356         mb[3] |= nv->bus[bus].target[target].sync_period;
1357
1358         status = qla1280_mailbox_command(ha, mr, mb);
1359
1360         /* Set Device Queue Parameters. */
1361         for (lun = 0; lun < MAX_LUNS; lun++) {
1362                 mb[0] = MBC_SET_DEVICE_QUEUE;
1363                 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
1364                 mb[1] |= lun;
1365                 mb[2] = nv->bus[bus].max_queue_depth;
1366                 mb[3] = nv->bus[bus].target[target].execution_throttle;
1367                 status |= qla1280_mailbox_command(ha, 0x0f, mb);
1368         }
1369
1370         if (status)
1371                 printk(KERN_WARNING "scsi(%ld:%i:%i): "
1372                        "qla1280_set_target_parameters() failed\n",
1373                        ha->host_no, bus, target);
1374         return status;
1375 }
1376
1377
1378 /**************************************************************************
1379  *   qla1280_slave_configure
1380  *
1381  * Description:
1382  *   Determines the queue depth for a given device.  There are two ways
1383  *   a queue depth can be obtained for a tagged queueing device.  One
1384  *   way is the default queue depth which is determined by whether
1385  *   If it is defined, then it is used
1386  *   as the default queue depth.  Otherwise, we use either 4 or 8 as the
1387  *   default queue depth (dependent on the number of hardware SCBs).
1388  **************************************************************************/
1389 static int
1390 qla1280_slave_configure(struct scsi_device *device)
1391 {
1392         struct scsi_qla_host *ha;
1393         int default_depth = 3;
1394         int bus = device->channel;
1395         int target = device->id;
1396         int status = 0;
1397         struct nvram *nv;
1398         unsigned long flags;
1399
1400         ha = (struct scsi_qla_host *)device->host->hostdata;
1401         nv = &ha->nvram;
1402
1403         if (qla1280_check_for_dead_scsi_bus(ha, bus))
1404                 return 1;
1405
1406         if (device->tagged_supported &&
1407             (ha->bus_settings[bus].qtag_enables & (BIT_0 << target))) {
1408                 scsi_adjust_queue_depth(device, MSG_ORDERED_TAG,
1409                                         ha->bus_settings[bus].hiwat);
1410         } else {
1411                 scsi_adjust_queue_depth(device, 0, default_depth);
1412         }
1413
1414 #if LINUX_VERSION_CODE > 0x020500
1415         nv->bus[bus].target[target].parameter.enable_sync = device->sdtr;
1416         nv->bus[bus].target[target].parameter.enable_wide = device->wdtr;
1417         nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = device->ppr;
1418 #endif
1419
1420         if (driver_setup.no_sync ||
1421             (driver_setup.sync_mask &&
1422              (~driver_setup.sync_mask & (1 << target))))
1423                 nv->bus[bus].target[target].parameter.enable_sync = 0;
1424         if (driver_setup.no_wide ||
1425             (driver_setup.wide_mask &&
1426              (~driver_setup.wide_mask & (1 << target))))
1427                 nv->bus[bus].target[target].parameter.enable_wide = 0;
1428         if (IS_ISP1x160(ha)) {
1429                 if (driver_setup.no_ppr ||
1430                     (driver_setup.ppr_mask &&
1431                      (~driver_setup.ppr_mask & (1 << target))))
1432                         nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 0;
1433         }
1434
1435         spin_lock_irqsave(HOST_LOCK, flags);
1436         if (nv->bus[bus].target[target].parameter.enable_sync)
1437                 status = qla1280_set_target_parameters(ha, bus, target);
1438         qla1280_get_target_parameters(ha, device);
1439         spin_unlock_irqrestore(HOST_LOCK, flags);
1440         return status;
1441 }
1442
1443 #if LINUX_VERSION_CODE < 0x020545
1444 /**************************************************************************
1445  *   qla1280_select_queue_depth
1446  *
1447  *   Sets the queue depth for each SCSI device hanging off the input
1448  *   host adapter.  We use a queue depth of 2 for devices that do not
1449  *   support tagged queueing.
1450  **************************************************************************/
1451 static void
1452 qla1280_select_queue_depth(struct Scsi_Host *host, struct scsi_device *sdev_q)
1453 {
1454         struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
1455         struct scsi_device *sdev;
1456
1457         ENTER("qla1280_select_queue_depth");
1458         for (sdev = sdev_q; sdev; sdev = sdev->next)
1459                 if (sdev->host == host)
1460                         qla1280_slave_configure(sdev);
1461
1462         if (sdev_q)
1463                 qla1280_check_for_dead_scsi_bus(ha, sdev_q->channel);
1464         LEAVE("qla1280_select_queue_depth");
1465 }
1466 #endif
1467
1468 /*
1469  * qla1280_done
1470  *      Process completed commands.
1471  *
1472  * Input:
1473  *      ha           = adapter block pointer.
1474  */
1475 static void
1476 qla1280_done(struct scsi_qla_host *ha)
1477 {
1478         struct srb *sp;
1479         struct list_head *done_q;
1480         int bus, target, lun;
1481         struct scsi_cmnd *cmd;
1482
1483         ENTER("qla1280_done");
1484
1485         done_q = &ha->done_q;
1486
1487         while (!list_empty(done_q)) {
1488                 sp = list_entry(done_q->next, struct srb, list);
1489
1490                 list_del(&sp->list);
1491         
1492                 cmd = sp->cmd;
1493                 bus = SCSI_BUS_32(cmd);
1494                 target = SCSI_TCN_32(cmd);
1495                 lun = SCSI_LUN_32(cmd);
1496
1497                 switch ((CMD_RESULT(cmd) >> 16)) {
1498                 case DID_RESET:
1499                         /* Issue marker command. */
1500                         qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
1501                         break;
1502                 case DID_ABORT:
1503                         sp->flags &= ~SRB_ABORT_PENDING;
1504                         sp->flags |= SRB_ABORTED;
1505                         if (sp->flags & SRB_TIMEOUT)
1506                                 CMD_RESULT(sp->cmd) = DID_TIME_OUT << 16;
1507                         break;
1508                 default:
1509                         break;
1510                 }
1511
1512                 /* Release memory used for this I/O */
1513                 if (cmd->use_sg) {
1514                         pci_unmap_sg(ha->pdev, cmd->request_buffer,
1515                                         cmd->use_sg, cmd->sc_data_direction);
1516                 } else if (cmd->request_bufflen) {
1517                         pci_unmap_single(ha->pdev, sp->saved_dma_handle,
1518                                         cmd->request_bufflen,
1519                                         cmd->sc_data_direction);
1520                 }
1521
1522                 /* Call the mid-level driver interrupt handler */
1523                 CMD_HANDLE(sp->cmd) = (unsigned char *)INVALID_HANDLE;
1524                 ha->actthreads--;
1525
1526 #if LINUX_VERSION_CODE < 0x020500
1527                 if (cmd->cmnd[0] == INQUIRY)
1528                         qla1280_get_target_options(cmd, ha);
1529 #endif
1530                 (*(cmd)->scsi_done)(cmd);
1531
1532                 if(sp->wait != NULL)
1533                         complete(sp->wait);
1534         }
1535         LEAVE("qla1280_done");
1536 }
1537
1538 /*
1539  * Translates a ISP error to a Linux SCSI error
1540  */
1541 static int
1542 qla1280_return_status(struct response * sts, struct scsi_cmnd *cp)
1543 {
1544         int host_status = DID_ERROR;
1545         uint16_t comp_status = le16_to_cpu(sts->comp_status);
1546         uint16_t state_flags = le16_to_cpu(sts->state_flags);
1547         uint16_t residual_length = le32_to_cpu(sts->residual_length);
1548         uint16_t scsi_status = le16_to_cpu(sts->scsi_status);
1549 #if DEBUG_QLA1280_INTR
1550         static char *reason[] = {
1551                 "DID_OK",
1552                 "DID_NO_CONNECT",
1553                 "DID_BUS_BUSY",
1554                 "DID_TIME_OUT",
1555                 "DID_BAD_TARGET",
1556                 "DID_ABORT",
1557                 "DID_PARITY",
1558                 "DID_ERROR",
1559                 "DID_RESET",
1560                 "DID_BAD_INTR"
1561         };
1562 #endif                          /* DEBUG_QLA1280_INTR */
1563
1564         ENTER("qla1280_return_status");
1565
1566 #if DEBUG_QLA1280_INTR
1567         /*
1568           dprintk(1, "qla1280_return_status: compl status = 0x%04x\n",
1569           comp_status);
1570         */
1571 #endif
1572
1573         switch (comp_status) {
1574         case CS_COMPLETE:
1575                 host_status = DID_OK;
1576                 break;
1577
1578         case CS_INCOMPLETE:
1579                 if (!(state_flags & SF_GOT_BUS))
1580                         host_status = DID_NO_CONNECT;
1581                 else if (!(state_flags & SF_GOT_TARGET))
1582                         host_status = DID_BAD_TARGET;
1583                 else if (!(state_flags & SF_SENT_CDB))
1584                         host_status = DID_ERROR;
1585                 else if (!(state_flags & SF_TRANSFERRED_DATA))
1586                         host_status = DID_ERROR;
1587                 else if (!(state_flags & SF_GOT_STATUS))
1588                         host_status = DID_ERROR;
1589                 else if (!(state_flags & SF_GOT_SENSE))
1590                         host_status = DID_ERROR;
1591                 break;
1592
1593         case CS_RESET:
1594                 host_status = DID_RESET;
1595                 break;
1596
1597         case CS_ABORTED:
1598                 host_status = DID_ABORT;
1599                 break;
1600
1601         case CS_TIMEOUT:
1602                 host_status = DID_TIME_OUT;
1603                 break;
1604
1605         case CS_DATA_OVERRUN:
1606                 dprintk(2, "Data overrun 0x%x\n", residual_length);
1607                 dprintk(2, "qla1280_return_status: response packet data\n");
1608                 qla1280_dump_buffer(2, (char *)sts, RESPONSE_ENTRY_SIZE);
1609                 host_status = DID_ERROR;
1610                 break;
1611
1612         case CS_DATA_UNDERRUN:
1613                 if ((cp->request_bufflen - residual_length) <
1614                     cp->underflow) {
1615                         printk(KERN_WARNING
1616                                "scsi: Underflow detected - retrying "
1617                                "command.\n");
1618                         host_status = DID_ERROR;
1619                 } else
1620                         host_status = DID_OK;
1621                 break;
1622
1623         default:
1624                 host_status = DID_ERROR;
1625                 break;
1626         }
1627
1628 #if DEBUG_QLA1280_INTR
1629         dprintk(1, "qla1280 ISP status: host status (%s) scsi status %x\n",
1630                 reason[host_status], scsi_status);
1631 #endif
1632
1633         LEAVE("qla1280_return_status");
1634
1635         return (scsi_status & 0xff) | (host_status << 16);
1636 }
1637
1638 /****************************************************************************/
1639 /*                QLogic ISP1280 Hardware Support Functions.                */
1640 /****************************************************************************/
1641
1642 /*
1643  * qla1280_initialize_adapter
1644  *      Initialize board.
1645  *
1646  * Input:
1647  *      ha = adapter block pointer.
1648  *
1649  * Returns:
1650  *      0 = success
1651  */
1652 static int __devinit
1653 qla1280_initialize_adapter(struct scsi_qla_host *ha)
1654 {
1655         struct device_reg __iomem *reg;
1656         int status;
1657         int bus;
1658 #if LINUX_VERSION_CODE > 0x020500
1659         unsigned long flags;
1660 #endif
1661
1662         ENTER("qla1280_initialize_adapter");
1663
1664         /* Clear adapter flags. */
1665         ha->flags.online = 0;
1666         ha->flags.disable_host_adapter = 0;
1667         ha->flags.reset_active = 0;
1668         ha->flags.abort_isp_active = 0;
1669
1670 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
1671         if (ia64_platform_is("sn2")) {
1672                 printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA "
1673                        "dual channel lockup workaround\n", ha->host_no);
1674                 ha->flags.use_pci_vchannel = 1;
1675                 driver_setup.no_nvram = 1;
1676         }
1677 #endif
1678
1679         /* TODO: implement support for the 1040 nvram format */
1680         if (IS_ISP1040(ha))
1681                 driver_setup.no_nvram = 1;
1682
1683         dprintk(1, "Configure PCI space for adapter...\n");
1684
1685         reg = ha->iobase;
1686
1687         /* Insure mailbox registers are free. */
1688         WRT_REG_WORD(&reg->semaphore, 0);
1689         WRT_REG_WORD(&reg->host_cmd, HC_CLR_RISC_INT);
1690         WRT_REG_WORD(&reg->host_cmd, HC_CLR_HOST_INT);
1691         RD_REG_WORD(&reg->host_cmd);
1692
1693         if (qla1280_read_nvram(ha)) {
1694                 dprintk(2, "qla1280_initialize_adapter: failed to read "
1695                         "NVRAM\n");
1696         }
1697
1698 #if LINUX_VERSION_CODE >= 0x020500
1699         /*
1700          * It's necessary to grab the spin here as qla1280_mailbox_command
1701          * needs to be able to drop the lock unconditionally to wait
1702          * for completion.
1703          * In 2.4 ->detect is called with the io_request_lock held.
1704          */
1705         spin_lock_irqsave(HOST_LOCK, flags);
1706 #endif
1707
1708         status = qla1280_load_firmware(ha);
1709         if (status) {
1710                 printk(KERN_ERR "scsi(%li): initialize: pci probe failed!\n",
1711                        ha->host_no);
1712                 goto out;
1713         }
1714
1715         /* Setup adapter based on NVRAM parameters. */
1716         dprintk(1, "scsi(%ld): Configure NVRAM parameters\n", ha->host_no);
1717         qla1280_nvram_config(ha);
1718
1719         if (ha->flags.disable_host_adapter) {
1720                 status = 1;
1721                 goto out;
1722         }
1723
1724         status = qla1280_init_rings(ha);
1725         if (status)
1726                 goto out;
1727
1728         /* Issue SCSI reset, if we can't reset twice then bus is dead */
1729         for (bus = 0; bus < ha->ports; bus++) {
1730                 if (!ha->bus_settings[bus].disable_scsi_reset &&
1731                     qla1280_bus_reset(ha, bus) &&
1732                     qla1280_bus_reset(ha, bus))
1733                         ha->bus_settings[bus].scsi_bus_dead = 1;
1734         }
1735
1736         ha->flags.online = 1;
1737  out:
1738 #if LINUX_VERSION_CODE >= 0x020500
1739         spin_unlock_irqrestore(HOST_LOCK, flags);
1740 #endif
1741         if (status)
1742                 dprintk(2, "qla1280_initialize_adapter: **** FAILED ****\n");
1743
1744         LEAVE("qla1280_initialize_adapter");
1745         return status;
1746 }
1747
1748 /*
1749  * Chip diagnostics
1750  *      Test chip for proper operation.
1751  *
1752  * Input:
1753  *      ha = adapter block pointer.
1754  *
1755  * Returns:
1756  *      0 = success.
1757  */
1758 static int
1759 qla1280_chip_diag(struct scsi_qla_host *ha)
1760 {
1761         uint16_t mb[MAILBOX_REGISTER_COUNT];
1762         struct device_reg __iomem *reg = ha->iobase;
1763         int status = 0;
1764         int cnt;
1765         uint16_t data;
1766         dprintk(3, "qla1280_chip_diag: testing device at 0x%p \n", &reg->id_l);
1767
1768         dprintk(1, "scsi(%ld): Verifying chip\n", ha->host_no);
1769
1770         /* Soft reset chip and wait for it to finish. */
1771         WRT_REG_WORD(&reg->ictrl, ISP_RESET);
1772
1773         /*
1774          * We can't do a traditional PCI write flush here by reading
1775          * back the register. The card will not respond once the reset
1776          * is in action and we end up with a machine check exception
1777          * instead. Nothing to do but wait and hope for the best.
1778          * A portable pci_write_flush(pdev) call would be very useful here.
1779          */
1780         udelay(20);
1781         data = qla1280_debounce_register(&reg->ictrl);
1782         /*
1783          * Yet another QLogic gem ;-(
1784          */
1785         for (cnt = 1000000; cnt && data & ISP_RESET; cnt--) {
1786                 udelay(5);
1787                 data = RD_REG_WORD(&reg->ictrl);
1788         }
1789
1790         if (!cnt)
1791                 goto fail;
1792
1793         /* Reset register cleared by chip reset. */
1794         dprintk(3, "qla1280_chip_diag: reset register cleared by chip reset\n");
1795
1796         WRT_REG_WORD(&reg->cfg_1, 0);
1797
1798         /* Reset RISC and disable BIOS which
1799            allows RISC to execute out of RAM. */
1800         WRT_REG_WORD(&reg->host_cmd, HC_RESET_RISC |
1801                      HC_RELEASE_RISC | HC_DISABLE_BIOS);
1802
1803         RD_REG_WORD(&reg->id_l);        /* Flush PCI write */
1804         data = qla1280_debounce_register(&reg->mailbox0);
1805
1806         /*
1807          * I *LOVE* this code!
1808          */
1809         for (cnt = 1000000; cnt && data == MBS_BUSY; cnt--) {
1810                 udelay(5);
1811                 data = RD_REG_WORD(&reg->mailbox0);
1812         }
1813
1814         if (!cnt)
1815                 goto fail;
1816
1817         /* Check product ID of chip */
1818         dprintk(3, "qla1280_chip_diag: Checking product ID of chip\n");
1819
1820         if (RD_REG_WORD(&reg->mailbox1) != PROD_ID_1 ||
1821             (RD_REG_WORD(&reg->mailbox2) != PROD_ID_2 &&
1822              RD_REG_WORD(&reg->mailbox2) != PROD_ID_2a) ||
1823             RD_REG_WORD(&reg->mailbox3) != PROD_ID_3 ||
1824             RD_REG_WORD(&reg->mailbox4) != PROD_ID_4) {
1825                 printk(KERN_INFO "qla1280: Wrong product ID = "
1826                        "0x%x,0x%x,0x%x,0x%x\n",
1827                        RD_REG_WORD(&reg->mailbox1),
1828                        RD_REG_WORD(&reg->mailbox2),
1829                        RD_REG_WORD(&reg->mailbox3),
1830                        RD_REG_WORD(&reg->mailbox4));
1831                 goto fail;
1832         }
1833
1834         /*
1835          * Enable ints early!!!
1836          */
1837         qla1280_enable_intrs(ha);
1838
1839         dprintk(1, "qla1280_chip_diag: Checking mailboxes of chip\n");
1840         /* Wrap Incoming Mailboxes Test. */
1841         mb[0] = MBC_MAILBOX_REGISTER_TEST;
1842         mb[1] = 0xAAAA;
1843         mb[2] = 0x5555;
1844         mb[3] = 0xAA55;
1845         mb[4] = 0x55AA;
1846         mb[5] = 0xA5A5;
1847         mb[6] = 0x5A5A;
1848         mb[7] = 0x2525;
1849
1850         status = qla1280_mailbox_command(ha, 0xff, mb);
1851         if (status)
1852                 goto fail;
1853
1854         if (mb[1] != 0xAAAA || mb[2] != 0x5555 || mb[3] != 0xAA55 ||
1855             mb[4] != 0x55AA || mb[5] != 0xA5A5 || mb[6] != 0x5A5A ||
1856             mb[7] != 0x2525) {
1857                 printk(KERN_INFO "qla1280: Failed mbox check\n");
1858                 goto fail;
1859         }
1860
1861         dprintk(3, "qla1280_chip_diag: exiting normally\n");
1862         return 0;
1863  fail:
1864         dprintk(2, "qla1280_chip_diag: **** FAILED ****\n");
1865         return status;
1866 }
1867
1868 static int
1869 qla1280_load_firmware_pio(struct scsi_qla_host *ha)
1870 {
1871         uint16_t risc_address, *risc_code_address, risc_code_size;
1872         uint16_t mb[MAILBOX_REGISTER_COUNT], i;
1873         int err;
1874
1875         /* Load RISC code. */
1876         risc_address = *ql1280_board_tbl[ha->devnum].fwstart;
1877         risc_code_address = ql1280_board_tbl[ha->devnum].fwcode;
1878         risc_code_size = *ql1280_board_tbl[ha->devnum].fwlen;
1879
1880         for (i = 0; i < risc_code_size; i++) {
1881                 mb[0] = MBC_WRITE_RAM_WORD;
1882                 mb[1] = risc_address + i;
1883                 mb[2] = risc_code_address[i];
1884
1885                 err = qla1280_mailbox_command(ha, BIT_0 | BIT_1 | BIT_2, mb);
1886                 if (err) {
1887                         printk(KERN_ERR "scsi(%li): Failed to load firmware\n",
1888                                         ha->host_no);
1889                         return err;
1890                 }
1891         }
1892
1893         return 0;
1894 }
1895
1896 #define DUMP_IT_BACK 0          /* for debug of RISC loading */
1897 static int
1898 qla1280_load_firmware_dma(struct scsi_qla_host *ha)
1899 {
1900         uint16_t risc_address, *risc_code_address, risc_code_size;
1901         uint16_t mb[MAILBOX_REGISTER_COUNT], cnt;
1902         int err = 0, num, i;
1903 #if DUMP_IT_BACK
1904         uint8_t *sp, *tbuf;
1905         dma_addr_t p_tbuf;
1906
1907         tbuf = pci_alloc_consistent(ha->pdev, 8000, &p_tbuf);
1908         if (!tbuf)
1909                 return -ENOMEM;
1910 #endif
1911
1912         /* Load RISC code. */
1913         risc_address = *ql1280_board_tbl[ha->devnum].fwstart;
1914         risc_code_address = ql1280_board_tbl[ha->devnum].fwcode;
1915         risc_code_size = *ql1280_board_tbl[ha->devnum].fwlen;
1916
1917         dprintk(1, "%s: DMA RISC code (%i) words\n",
1918                         __FUNCTION__, risc_code_size);
1919
1920         num = 0;
1921         while (risc_code_size > 0) {
1922                 int warn __attribute__((unused)) = 0;
1923
1924                 cnt = 2000 >> 1;
1925
1926                 if (cnt > risc_code_size)
1927                         cnt = risc_code_size;
1928
1929                 dprintk(2, "qla1280_setup_chip:  loading risc @ =(0x%p),"
1930                         "%d,%d(0x%x)\n",
1931                         risc_code_address, cnt, num, risc_address);
1932                 for(i = 0; i < cnt; i++)
1933                         ((__le16 *)ha->request_ring)[i] =
1934                                 cpu_to_le16(risc_code_address[i]);
1935
1936                 mb[0] = MBC_LOAD_RAM;
1937                 mb[1] = risc_address;
1938                 mb[4] = cnt;
1939                 mb[3] = ha->request_dma & 0xffff;
1940                 mb[2] = (ha->request_dma >> 16) & 0xffff;
1941                 mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff;
1942                 mb[6] = pci_dma_hi32(ha->request_dma) >> 16;
1943                 dprintk(2, "%s: op=%d  0x%p = 0x%4x,0x%4x,0x%4x,0x%4x\n",
1944                                 __FUNCTION__, mb[0],
1945                                 (void *)(long)ha->request_dma,
1946                                 mb[6], mb[7], mb[2], mb[3]);
1947                 err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 |
1948                                 BIT_1 | BIT_0, mb);
1949                 if (err) {
1950                         printk(KERN_ERR "scsi(%li): Failed to load partial "
1951                                "segment of f\n", ha->host_no);
1952                         goto out;
1953                 }
1954
1955 #if DUMP_IT_BACK
1956                 mb[0] = MBC_DUMP_RAM;
1957                 mb[1] = risc_address;
1958                 mb[4] = cnt;
1959                 mb[3] = p_tbuf & 0xffff;
1960                 mb[2] = (p_tbuf >> 16) & 0xffff;
1961                 mb[7] = pci_dma_hi32(p_tbuf) & 0xffff;
1962                 mb[6] = pci_dma_hi32(p_tbuf) >> 16;
1963
1964                 err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 |
1965                                 BIT_1 | BIT_0, mb);
1966                 if (err) {
1967                         printk(KERN_ERR
1968                                "Failed to dump partial segment of f/w\n");
1969                         goto out;
1970                 }
1971                 sp = (uint8_t *)ha->request_ring;
1972                 for (i = 0; i < (cnt << 1); i++) {
1973                         if (tbuf[i] != sp[i] && warn++ < 10) {
1974                                 printk(KERN_ERR "%s: FW compare error @ "
1975                                                 "byte(0x%x) loop#=%x\n",
1976                                                 __FUNCTION__, i, num);
1977                                 printk(KERN_ERR "%s: FWbyte=%x  "
1978                                                 "FWfromChip=%x\n",
1979                                                 __FUNCTION__, sp[i], tbuf[i]);
1980                                 /*break; */
1981                         }
1982                 }
1983 #endif
1984                 risc_address += cnt;
1985                 risc_code_size = risc_code_size - cnt;
1986                 risc_code_address = risc_code_address + cnt;
1987                 num++;
1988         }
1989
1990  out:
1991 #if DUMP_IT_BACK
1992         pci_free_consistent(ha->pdev, 8000, tbuf, p_tbuf);
1993 #endif
1994         return err;
1995 }
1996
1997 static int
1998 qla1280_start_firmware(struct scsi_qla_host *ha)
1999 {
2000         uint16_t mb[MAILBOX_REGISTER_COUNT];
2001         int err;
2002
2003         dprintk(1, "%s: Verifying checksum of loaded RISC code.\n",
2004                         __FUNCTION__);
2005
2006         /* Verify checksum of loaded RISC code. */
2007         mb[0] = MBC_VERIFY_CHECKSUM;
2008         /* mb[1] = ql12_risc_code_addr01; */
2009         mb[1] = *ql1280_board_tbl[ha->devnum].fwstart;
2010         err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2011         if (err) {
2012                 printk(KERN_ERR "scsi(%li): RISC checksum failed.\n", ha->host_no);
2013                 return err;
2014         }
2015
2016         /* Start firmware execution. */
2017         dprintk(1, "%s: start firmware running.\n", __FUNCTION__);
2018         mb[0] = MBC_EXECUTE_FIRMWARE;
2019         mb[1] = *ql1280_board_tbl[ha->devnum].fwstart;
2020         err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2021         if (err) {
2022                 printk(KERN_ERR "scsi(%li): Failed to start firmware\n",
2023                                 ha->host_no);
2024         }
2025
2026         return err;
2027 }
2028
2029 static int
2030 qla1280_load_firmware(struct scsi_qla_host *ha)
2031 {
2032         int err;
2033
2034         err = qla1280_chip_diag(ha);
2035         if (err)
2036                 goto out;
2037         if (IS_ISP1040(ha))
2038                 err = qla1280_load_firmware_pio(ha);
2039         else
2040                 err = qla1280_load_firmware_dma(ha);
2041         if (err)
2042                 goto out;
2043         err = qla1280_start_firmware(ha);
2044  out:
2045         return err;
2046 }
2047
2048 /*
2049  * Initialize rings
2050  *
2051  * Input:
2052  *      ha                = adapter block pointer.
2053  *      ha->request_ring  = request ring virtual address
2054  *      ha->response_ring = response ring virtual address
2055  *      ha->request_dma   = request ring physical address
2056  *      ha->response_dma  = response ring physical address
2057  *
2058  * Returns:
2059  *      0 = success.
2060  */
2061 static int
2062 qla1280_init_rings(struct scsi_qla_host *ha)
2063 {
2064         uint16_t mb[MAILBOX_REGISTER_COUNT];
2065         int status = 0;
2066
2067         ENTER("qla1280_init_rings");
2068
2069         /* Clear outstanding commands array. */
2070         memset(ha->outstanding_cmds, 0,
2071                sizeof(struct srb *) * MAX_OUTSTANDING_COMMANDS);
2072
2073         /* Initialize request queue. */
2074         ha->request_ring_ptr = ha->request_ring;
2075         ha->req_ring_index = 0;
2076         ha->req_q_cnt = REQUEST_ENTRY_CNT;
2077         /* mb[0] = MBC_INIT_REQUEST_QUEUE; */
2078         mb[0] = MBC_INIT_REQUEST_QUEUE_A64;
2079         mb[1] = REQUEST_ENTRY_CNT;
2080         mb[3] = ha->request_dma & 0xffff;
2081         mb[2] = (ha->request_dma >> 16) & 0xffff;
2082         mb[4] = 0;
2083         mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff;
2084         mb[6] = pci_dma_hi32(ha->request_dma) >> 16;
2085         if (!(status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_4 |
2086                                                BIT_3 | BIT_2 | BIT_1 | BIT_0,
2087                                                &mb[0]))) {
2088                 /* Initialize response queue. */
2089                 ha->response_ring_ptr = ha->response_ring;
2090                 ha->rsp_ring_index = 0;
2091                 /* mb[0] = MBC_INIT_RESPONSE_QUEUE; */
2092                 mb[0] = MBC_INIT_RESPONSE_QUEUE_A64;
2093                 mb[1] = RESPONSE_ENTRY_CNT;
2094                 mb[3] = ha->response_dma & 0xffff;
2095                 mb[2] = (ha->response_dma >> 16) & 0xffff;
2096                 mb[5] = 0;
2097                 mb[7] = pci_dma_hi32(ha->response_dma) & 0xffff;
2098                 mb[6] = pci_dma_hi32(ha->response_dma) >> 16;
2099                 status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_5 |
2100                                                  BIT_3 | BIT_2 | BIT_1 | BIT_0,
2101                                                  &mb[0]);
2102         }
2103
2104         if (status)
2105                 dprintk(2, "qla1280_init_rings: **** FAILED ****\n");
2106
2107         LEAVE("qla1280_init_rings");
2108         return status;
2109 }
2110
2111 static void
2112 qla1280_print_settings(struct nvram *nv)
2113 {
2114         dprintk(1, "qla1280 : initiator scsi id bus[0]=%d\n",
2115                 nv->bus[0].config_1.initiator_id);
2116         dprintk(1, "qla1280 : initiator scsi id bus[1]=%d\n",
2117                 nv->bus[1].config_1.initiator_id);
2118
2119         dprintk(1, "qla1280 : bus reset delay[0]=%d\n",
2120                 nv->bus[0].bus_reset_delay);
2121         dprintk(1, "qla1280 : bus reset delay[1]=%d\n",
2122                 nv->bus[1].bus_reset_delay);
2123
2124         dprintk(1, "qla1280 : retry count[0]=%d\n", nv->bus[0].retry_count);
2125         dprintk(1, "qla1280 : retry delay[0]=%d\n", nv->bus[0].retry_delay);
2126         dprintk(1, "qla1280 : retry count[1]=%d\n", nv->bus[1].retry_count);
2127         dprintk(1, "qla1280 : retry delay[1]=%d\n", nv->bus[1].retry_delay);
2128
2129         dprintk(1, "qla1280 : async data setup time[0]=%d\n",
2130                 nv->bus[0].config_2.async_data_setup_time);
2131         dprintk(1, "qla1280 : async data setup time[1]=%d\n",
2132                 nv->bus[1].config_2.async_data_setup_time);
2133
2134         dprintk(1, "qla1280 : req/ack active negation[0]=%d\n",
2135                 nv->bus[0].config_2.req_ack_active_negation);
2136         dprintk(1, "qla1280 : req/ack active negation[1]=%d\n",
2137                 nv->bus[1].config_2.req_ack_active_negation);
2138
2139         dprintk(1, "qla1280 : data line active negation[0]=%d\n",
2140                 nv->bus[0].config_2.data_line_active_negation);
2141         dprintk(1, "qla1280 : data line active negation[1]=%d\n",
2142                 nv->bus[1].config_2.data_line_active_negation);
2143
2144         dprintk(1, "qla1280 : disable loading risc code=%d\n",
2145                 nv->cntr_flags_1.disable_loading_risc_code);
2146
2147         dprintk(1, "qla1280 : enable 64bit addressing=%d\n",
2148                 nv->cntr_flags_1.enable_64bit_addressing);
2149
2150         dprintk(1, "qla1280 : selection timeout limit[0]=%d\n",
2151                 nv->bus[0].selection_timeout);
2152         dprintk(1, "qla1280 : selection timeout limit[1]=%d\n",
2153                 nv->bus[1].selection_timeout);
2154
2155         dprintk(1, "qla1280 : max queue depth[0]=%d\n",
2156                 nv->bus[0].max_queue_depth);
2157         dprintk(1, "qla1280 : max queue depth[1]=%d\n",
2158                 nv->bus[1].max_queue_depth);
2159 }
2160
2161 static void
2162 qla1280_set_target_defaults(struct scsi_qla_host *ha, int bus, int target)
2163 {
2164         struct nvram *nv = &ha->nvram;
2165
2166         nv->bus[bus].target[target].parameter.renegotiate_on_error = 1;
2167         nv->bus[bus].target[target].parameter.auto_request_sense = 1;
2168         nv->bus[bus].target[target].parameter.tag_queuing = 1;
2169         nv->bus[bus].target[target].parameter.enable_sync = 1;
2170 #if 1   /* Some SCSI Processors do not seem to like this */
2171         nv->bus[bus].target[target].parameter.enable_wide = 1;
2172 #endif
2173         nv->bus[bus].target[target].execution_throttle =
2174                 nv->bus[bus].max_queue_depth - 1;
2175         nv->bus[bus].target[target].parameter.parity_checking = 1;
2176         nv->bus[bus].target[target].parameter.disconnect_allowed = 1;
2177
2178         if (IS_ISP1x160(ha)) {
2179                 nv->bus[bus].target[target].flags.flags1x160.device_enable = 1;
2180                 nv->bus[bus].target[target].flags.flags1x160.sync_offset = 0x0e;
2181                 nv->bus[bus].target[target].sync_period = 9;
2182                 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 1;
2183                 nv->bus[bus].target[target].ppr_1x160.flags.ppr_options = 2;
2184                 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width = 1;
2185         } else {
2186                 nv->bus[bus].target[target].flags.flags1x80.device_enable = 1;
2187                 nv->bus[bus].target[target].flags.flags1x80.sync_offset = 12;
2188                 nv->bus[bus].target[target].sync_period = 10;
2189         }
2190 }
2191
2192 static void
2193 qla1280_set_defaults(struct scsi_qla_host *ha)
2194 {
2195         struct nvram *nv = &ha->nvram;
2196         int bus, target;
2197
2198         dprintk(1, "Using defaults for NVRAM: \n");
2199         memset(nv, 0, sizeof(struct nvram));
2200
2201         /* nv->cntr_flags_1.disable_loading_risc_code = 1; */
2202         nv->firmware_feature.f.enable_fast_posting = 1;
2203         nv->firmware_feature.f.disable_synchronous_backoff = 1;
2204         nv->termination.scsi_bus_0_control = 3;
2205         nv->termination.scsi_bus_1_control = 3;
2206         nv->termination.auto_term_support = 1;
2207
2208         /*
2209          * Set default FIFO magic - What appropriate values would be here
2210          * is unknown. This is what I have found testing with 12160s.
2211          *
2212          * Now, I would love the magic decoder ring for this one, the
2213          * header file provided by QLogic seems to be bogus or incomplete
2214          * at best.
2215          */
2216         nv->isp_config.burst_enable = 1;
2217         if (IS_ISP1040(ha))
2218                 nv->isp_config.fifo_threshold |= 3;
2219         else
2220                 nv->isp_config.fifo_threshold |= 4;
2221
2222         if (IS_ISP1x160(ha))
2223                 nv->isp_parameter = 0x01; /* fast memory enable */
2224
2225         for (bus = 0; bus < MAX_BUSES; bus++) {
2226                 nv->bus[bus].config_1.initiator_id = 7;
2227                 nv->bus[bus].config_2.req_ack_active_negation = 1;
2228                 nv->bus[bus].config_2.data_line_active_negation = 1;
2229                 nv->bus[bus].selection_timeout = 250;
2230                 nv->bus[bus].max_queue_depth = 256;
2231
2232                 if (IS_ISP1040(ha)) {
2233                         nv->bus[bus].bus_reset_delay = 3;
2234                         nv->bus[bus].config_2.async_data_setup_time = 6;
2235                         nv->bus[bus].retry_delay = 1;
2236                 } else {
2237                         nv->bus[bus].bus_reset_delay = 5;
2238                         nv->bus[bus].config_2.async_data_setup_time = 8;
2239                 }
2240
2241                 for (target = 0; target < MAX_TARGETS; target++)
2242                         qla1280_set_target_defaults(ha, bus, target);
2243         }
2244 }
2245
2246 static int
2247 qla1280_config_target(struct scsi_qla_host *ha, int bus, int target)
2248 {
2249         struct nvram *nv = &ha->nvram;
2250         uint16_t mb[MAILBOX_REGISTER_COUNT];
2251         int status, lun;
2252         uint16_t flag;
2253
2254         /* Set Target Parameters. */
2255         mb[0] = MBC_SET_TARGET_PARAMETERS;
2256         mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
2257
2258         /*
2259          * Do not enable sync and ppr for the initial INQUIRY run. We
2260          * enable this later if we determine the target actually
2261          * supports it.
2262          */
2263         mb[2] = (TP_RENEGOTIATE | TP_AUTO_REQUEST_SENSE | TP_TAGGED_QUEUE
2264                  | TP_WIDE | TP_PARITY | TP_DISCONNECT);
2265
2266         if (IS_ISP1x160(ha))
2267                 mb[3] = nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8;
2268         else
2269                 mb[3] = nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8;
2270         mb[3] |= nv->bus[bus].target[target].sync_period;
2271         status = qla1280_mailbox_command(ha, 0x0f, mb);
2272
2273         /* Save Tag queuing enable flag. */
2274         flag = (BIT_0 << target) & mb[0];
2275         if (nv->bus[bus].target[target].parameter.tag_queuing)
2276                 ha->bus_settings[bus].qtag_enables |= flag;
2277
2278         /* Save Device enable flag. */
2279         if (IS_ISP1x160(ha)) {
2280                 if (nv->bus[bus].target[target].flags.flags1x160.device_enable)
2281                         ha->bus_settings[bus].device_enables |= flag;
2282                 ha->bus_settings[bus].lun_disables |= 0;
2283         } else {
2284                 if (nv->bus[bus].target[target].flags.flags1x80.device_enable)
2285                         ha->bus_settings[bus].device_enables |= flag;
2286                 /* Save LUN disable flag. */
2287                 if (nv->bus[bus].target[target].flags.flags1x80.lun_disable)
2288                         ha->bus_settings[bus].lun_disables |= flag;
2289         }
2290
2291         /* Set Device Queue Parameters. */
2292         for (lun = 0; lun < MAX_LUNS; lun++) {
2293                 mb[0] = MBC_SET_DEVICE_QUEUE;
2294                 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
2295                 mb[1] |= lun;
2296                 mb[2] = nv->bus[bus].max_queue_depth;
2297                 mb[3] = nv->bus[bus].target[target].execution_throttle;
2298                 status |= qla1280_mailbox_command(ha, 0x0f, mb);
2299         }
2300
2301         return status;
2302 }
2303
2304 static int
2305 qla1280_config_bus(struct scsi_qla_host *ha, int bus)
2306 {
2307         struct nvram *nv = &ha->nvram;
2308         uint16_t mb[MAILBOX_REGISTER_COUNT];
2309         int target, status;
2310
2311         /* SCSI Reset Disable. */
2312         ha->bus_settings[bus].disable_scsi_reset =
2313                 nv->bus[bus].config_1.scsi_reset_disable;
2314
2315         /* Initiator ID. */
2316         ha->bus_settings[bus].id = nv->bus[bus].config_1.initiator_id;
2317         mb[0] = MBC_SET_INITIATOR_ID;
2318         mb[1] = bus ? ha->bus_settings[bus].id | BIT_7 :
2319                 ha->bus_settings[bus].id;
2320         status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2321
2322         /* Reset Delay. */
2323         ha->bus_settings[bus].bus_reset_delay =
2324                 nv->bus[bus].bus_reset_delay;
2325
2326         /* Command queue depth per device. */
2327         ha->bus_settings[bus].hiwat = nv->bus[bus].max_queue_depth - 1;
2328
2329         /* Set target parameters. */
2330         for (target = 0; target < MAX_TARGETS; target++)
2331                 status |= qla1280_config_target(ha, bus, target);
2332
2333         return status;
2334 }
2335
2336 static int
2337 qla1280_nvram_config(struct scsi_qla_host *ha)
2338 {
2339         struct device_reg __iomem *reg = ha->iobase;
2340         struct nvram *nv = &ha->nvram;
2341         int bus, target, status = 0;
2342         uint16_t mb[MAILBOX_REGISTER_COUNT];
2343
2344         ENTER("qla1280_nvram_config");
2345
2346         if (ha->nvram_valid) {
2347                 /* Always force AUTO sense for LINUX SCSI */
2348                 for (bus = 0; bus < MAX_BUSES; bus++)
2349                         for (target = 0; target < MAX_TARGETS; target++) {
2350                                 nv->bus[bus].target[target].parameter.
2351                                         auto_request_sense = 1;
2352                         }
2353         } else {
2354                 qla1280_set_defaults(ha);
2355         }
2356
2357         qla1280_print_settings(nv);
2358
2359         /* Disable RISC load of firmware. */
2360         ha->flags.disable_risc_code_load =
2361                 nv->cntr_flags_1.disable_loading_risc_code;
2362
2363         if (IS_ISP1040(ha)) {
2364                 uint16_t hwrev, cfg1, cdma_conf, ddma_conf;
2365
2366                 hwrev = RD_REG_WORD(&reg->cfg_0) & ISP_CFG0_HWMSK;
2367
2368                 cfg1 = RD_REG_WORD(&reg->cfg_1) & ~(BIT_4 | BIT_5 | BIT_6);
2369                 cdma_conf = RD_REG_WORD(&reg->cdma_cfg);
2370                 ddma_conf = RD_REG_WORD(&reg->ddma_cfg);
2371
2372                 /* Busted fifo, says mjacob. */
2373                 if (hwrev != ISP_CFG0_1040A)
2374                         cfg1 |= nv->isp_config.fifo_threshold << 4;
2375
2376                 cfg1 |= nv->isp_config.burst_enable << 2;
2377                 WRT_REG_WORD(&reg->cfg_1, cfg1);
2378
2379                 WRT_REG_WORD(&reg->cdma_cfg, cdma_conf | CDMA_CONF_BENAB);
2380                 WRT_REG_WORD(&reg->ddma_cfg, cdma_conf | DDMA_CONF_BENAB);
2381         } else {
2382                 uint16_t cfg1, term;
2383
2384                 /* Set ISP hardware DMA burst */
2385                 cfg1 = nv->isp_config.fifo_threshold << 4;
2386                 cfg1 |= nv->isp_config.burst_enable << 2;
2387                 /* Enable DMA arbitration on dual channel controllers */
2388                 if (ha->ports > 1)
2389                         cfg1 |= BIT_13;
2390                 WRT_REG_WORD(&reg->cfg_1, cfg1);
2391
2392                 /* Set SCSI termination. */
2393                 WRT_REG_WORD(&reg->gpio_enable,
2394                              BIT_7 | BIT_3 | BIT_2 | BIT_1 | BIT_0);
2395                 term = nv->termination.scsi_bus_1_control;
2396                 term |= nv->termination.scsi_bus_0_control << 2;
2397                 term |= nv->termination.auto_term_support << 7;
2398                 RD_REG_WORD(&reg->id_l);        /* Flush PCI write */
2399                 WRT_REG_WORD(&reg->gpio_data, term);
2400         }
2401         RD_REG_WORD(&reg->id_l);        /* Flush PCI write */
2402
2403         /* ISP parameter word. */
2404         mb[0] = MBC_SET_SYSTEM_PARAMETER;
2405         mb[1] = nv->isp_parameter;
2406         status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2407
2408         if (IS_ISP1x40(ha)) {
2409                 /* clock rate - for qla1240 and older, only */
2410                 mb[0] = MBC_SET_CLOCK_RATE;
2411                 mb[1] = 40;
2412                 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2413         }
2414
2415         /* Firmware feature word. */
2416         mb[0] = MBC_SET_FIRMWARE_FEATURES;
2417         mb[1] = nv->firmware_feature.f.enable_fast_posting;
2418         mb[1] |= nv->firmware_feature.f.report_lvd_bus_transition << 1;
2419         mb[1] |= nv->firmware_feature.f.disable_synchronous_backoff << 5;
2420 #if defined(CONFIG_IA64_GENERIC) || defined (CONFIG_IA64_SGI_SN2)
2421         if (ia64_platform_is("sn2")) {
2422                 printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA "
2423                        "workaround\n", ha->host_no);
2424                 mb[1] |= nv->firmware_feature.f.unused_9 << 9; /* XXX */
2425         }
2426 #endif
2427         status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2428
2429         /* Retry count and delay. */
2430         mb[0] = MBC_SET_RETRY_COUNT;
2431         mb[1] = nv->bus[0].retry_count;
2432         mb[2] = nv->bus[0].retry_delay;
2433         mb[6] = nv->bus[1].retry_count;
2434         mb[7] = nv->bus[1].retry_delay;
2435         status |= qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_2 |
2436                                           BIT_1 | BIT_0, &mb[0]);
2437
2438         /* ASYNC data setup time. */
2439         mb[0] = MBC_SET_ASYNC_DATA_SETUP;
2440         mb[1] = nv->bus[0].config_2.async_data_setup_time;
2441         mb[2] = nv->bus[1].config_2.async_data_setup_time;
2442         status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2443
2444         /* Active negation states. */
2445         mb[0] = MBC_SET_ACTIVE_NEGATION;
2446         mb[1] = 0;
2447         if (nv->bus[0].config_2.req_ack_active_negation)
2448                 mb[1] |= BIT_5;
2449         if (nv->bus[0].config_2.data_line_active_negation)
2450                 mb[1] |= BIT_4;
2451         mb[2] = 0;
2452         if (nv->bus[1].config_2.req_ack_active_negation)
2453                 mb[2] |= BIT_5;
2454         if (nv->bus[1].config_2.data_line_active_negation)
2455                 mb[2] |= BIT_4;
2456         status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
2457
2458         mb[0] = MBC_SET_DATA_OVERRUN_RECOVERY;
2459         mb[1] = 2;      /* Reset SCSI bus and return all outstanding IO */
2460         status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2461
2462         /* thingy */
2463         mb[0] = MBC_SET_PCI_CONTROL;
2464         mb[1] = BIT_1;  /* Data DMA Channel Burst Enable */
2465         mb[2] = BIT_1;  /* Command DMA Channel Burst Enable */
2466         status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
2467
2468         mb[0] = MBC_SET_TAG_AGE_LIMIT;
2469         mb[1] = 8;
2470         status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2471
2472         /* Selection timeout. */
2473         mb[0] = MBC_SET_SELECTION_TIMEOUT;
2474         mb[1] = nv->bus[0].selection_timeout;
2475         mb[2] = nv->bus[1].selection_timeout;
2476         status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
2477
2478         for (bus = 0; bus < ha->ports; bus++)
2479                 status |= qla1280_config_bus(ha, bus);
2480
2481         if (status)
2482                 dprintk(2, "qla1280_nvram_config: **** FAILED ****\n");
2483
2484         LEAVE("qla1280_nvram_config");
2485         return status;
2486 }
2487
2488 /*
2489  * Get NVRAM data word
2490  *      Calculates word position in NVRAM and calls request routine to
2491  *      get the word from NVRAM.
2492  *
2493  * Input:
2494  *      ha      = adapter block pointer.
2495  *      address = NVRAM word address.
2496  *
2497  * Returns:
2498  *      data word.
2499  */
2500 static uint16_t
2501 qla1280_get_nvram_word(struct scsi_qla_host *ha, uint32_t address)
2502 {
2503         uint32_t nv_cmd;
2504         uint16_t data;
2505
2506         nv_cmd = address << 16;
2507         nv_cmd |= NV_READ_OP;
2508
2509         data = le16_to_cpu(qla1280_nvram_request(ha, nv_cmd));
2510
2511         dprintk(8, "qla1280_get_nvram_word: exiting normally NVRAM data = "
2512                 "0x%x", data);
2513
2514         return data;
2515 }
2516
2517 /*
2518  * NVRAM request
2519  *      Sends read command to NVRAM and gets data from NVRAM.
2520  *
2521  * Input:
2522  *      ha     = adapter block pointer.
2523  *      nv_cmd = Bit 26     = start bit
2524  *               Bit 25, 24 = opcode
2525  *               Bit 23-16  = address
2526  *               Bit 15-0   = write data
2527  *
2528  * Returns:
2529  *      data word.
2530  */
2531 static uint16_t
2532 qla1280_nvram_request(struct scsi_qla_host *ha, uint32_t nv_cmd)
2533 {
2534         struct device_reg __iomem *reg = ha->iobase;
2535         int cnt;
2536         uint16_t data = 0;
2537         uint16_t reg_data;
2538
2539         /* Send command to NVRAM. */
2540
2541         nv_cmd <<= 5;
2542         for (cnt = 0; cnt < 11; cnt++) {
2543                 if (nv_cmd & BIT_31)
2544                         qla1280_nv_write(ha, NV_DATA_OUT);
2545                 else
2546                         qla1280_nv_write(ha, 0);
2547                 nv_cmd <<= 1;
2548         }
2549
2550         /* Read data from NVRAM. */
2551
2552         for (cnt = 0; cnt < 16; cnt++) {
2553                 WRT_REG_WORD(&reg->nvram, (NV_SELECT | NV_CLOCK));
2554                 RD_REG_WORD(&reg->id_l);        /* Flush PCI write */
2555                 NVRAM_DELAY();
2556                 data <<= 1;
2557                 reg_data = RD_REG_WORD(&reg->nvram);
2558                 if (reg_data & NV_DATA_IN)
2559                         data |= BIT_0;
2560                 WRT_REG_WORD(&reg->nvram, NV_SELECT);
2561                 RD_REG_WORD(&reg->id_l);        /* Flush PCI write */
2562                 NVRAM_DELAY();
2563         }
2564
2565         /* Deselect chip. */
2566
2567         WRT_REG_WORD(&reg->nvram, NV_DESELECT);
2568         RD_REG_WORD(&reg->id_l);        /* Flush PCI write */
2569         NVRAM_DELAY();
2570
2571         return data;
2572 }
2573
2574 static void
2575 qla1280_nv_write(struct scsi_qla_host *ha, uint16_t data)
2576 {
2577         struct device_reg __iomem *reg = ha->iobase;
2578
2579         WRT_REG_WORD(&reg->nvram, data | NV_SELECT);
2580         RD_REG_WORD(&reg->id_l);        /* Flush PCI write */
2581         NVRAM_DELAY();
2582         WRT_REG_WORD(&reg->nvram, data | NV_SELECT | NV_CLOCK);
2583         RD_REG_WORD(&reg->id_l);        /* Flush PCI write */
2584         NVRAM_DELAY();
2585         WRT_REG_WORD(&reg->nvram, data | NV_SELECT);
2586         RD_REG_WORD(&reg->id_l);        /* Flush PCI write */
2587         NVRAM_DELAY();
2588 }
2589
2590 /*
2591  * Mailbox Command
2592  *      Issue mailbox command and waits for completion.
2593  *
2594  * Input:
2595  *      ha = adapter block pointer.
2596  *      mr = mailbox registers to load.
2597  *      mb = data pointer for mailbox registers.
2598  *
2599  * Output:
2600  *      mb[MAILBOX_REGISTER_COUNT] = returned mailbox data.
2601  *
2602  * Returns:
2603  *      0 = success
2604  */
2605 static int
2606 qla1280_mailbox_command(struct scsi_qla_host *ha, uint8_t mr, uint16_t *mb)
2607 {
2608         struct device_reg __iomem *reg = ha->iobase;
2609 #if 0
2610         LIST_HEAD(done_q);
2611 #endif
2612         int status = 0;
2613         int cnt;
2614         uint16_t *optr, *iptr;
2615         uint16_t __iomem *mptr;
2616         uint16_t data;
2617         DECLARE_COMPLETION(wait);
2618         struct timer_list timer;
2619
2620         ENTER("qla1280_mailbox_command");
2621
2622         if (ha->mailbox_wait) {
2623                 printk(KERN_ERR "Warning mailbox wait already in use!\n");
2624         }
2625         ha->mailbox_wait = &wait;
2626
2627         /*
2628          * We really should start out by verifying that the mailbox is
2629          * available before starting sending the command data
2630          */
2631         /* Load mailbox registers. */
2632         mptr = (uint16_t __iomem *) &reg->mailbox0;
2633         iptr = mb;
2634         for (cnt = 0; cnt < MAILBOX_REGISTER_COUNT; cnt++) {
2635                 if (mr & BIT_0) {
2636                         WRT_REG_WORD(mptr, (*iptr));
2637                 }
2638
2639                 mr >>= 1;
2640                 mptr++;
2641                 iptr++;
2642         }
2643
2644         /* Issue set host interrupt command. */
2645
2646         /* set up a timer just in case we're really jammed */
2647         init_timer(&timer);
2648         timer.expires = jiffies + 20*HZ;
2649         timer.data = (unsigned long)ha;
2650         timer.function = qla1280_mailbox_timeout;
2651         add_timer(&timer);
2652
2653         spin_unlock_irq(HOST_LOCK);
2654         WRT_REG_WORD(&reg->host_cmd, HC_SET_HOST_INT);
2655         data = qla1280_debounce_register(&reg->istatus);
2656
2657         wait_for_completion(&wait);
2658         del_timer_sync(&timer);
2659
2660         spin_lock_irq(HOST_LOCK);
2661
2662         ha->mailbox_wait = NULL;
2663
2664         /* Check for mailbox command timeout. */
2665         if (ha->mailbox_out[0] != MBS_CMD_CMP) {
2666                 printk(KERN_WARNING "qla1280_mailbox_command: Command failed, "
2667                        "mailbox0 = 0x%04x, mailbox_out0 = 0x%04x, istatus = "
2668                        "0x%04x\n", 
2669                        mb[0], ha->mailbox_out[0], RD_REG_WORD(&reg->istatus));
2670                 printk(KERN_WARNING "m0 %04x, m1 %04x, m2 %04x, m3 %04x\n",
2671                        RD_REG_WORD(&reg->mailbox0), RD_REG_WORD(&reg->mailbox1),
2672                        RD_REG_WORD(&reg->mailbox2), RD_REG_WORD(&reg->mailbox3));
2673                 printk(KERN_WARNING "m4 %04x, m5 %04x, m6 %04x, m7 %04x\n",
2674                        RD_REG_WORD(&reg->mailbox4), RD_REG_WORD(&reg->mailbox5),
2675                        RD_REG_WORD(&reg->mailbox6), RD_REG_WORD(&reg->mailbox7));
2676                 status = 1;
2677         }
2678
2679         /* Load return mailbox registers. */
2680         optr = mb;
2681         iptr = (uint16_t *) &ha->mailbox_out[0];
2682         mr = MAILBOX_REGISTER_COUNT;
2683         memcpy(optr, iptr, MAILBOX_REGISTER_COUNT * sizeof(uint16_t));
2684
2685 #if 0
2686         /* Go check for any response interrupts pending. */
2687         qla1280_isr(ha, &done_q);
2688 #endif
2689
2690         if (ha->flags.reset_marker)
2691                 qla1280_rst_aen(ha);
2692
2693 #if 0
2694         if (!list_empty(&done_q))
2695                 qla1280_done(ha, &done_q);
2696 #endif
2697
2698         if (status)
2699                 dprintk(2, "qla1280_mailbox_command: **** FAILED, mailbox0 = "
2700                         "0x%x ****\n", mb[0]);
2701
2702         LEAVE("qla1280_mailbox_command");
2703         return status;
2704 }
2705
2706 /*
2707  * qla1280_poll
2708  *      Polls ISP for interrupts.
2709  *
2710  * Input:
2711  *      ha = adapter block pointer.
2712  */
2713 static void
2714 qla1280_poll(struct scsi_qla_host *ha)
2715 {
2716         struct device_reg __iomem *reg = ha->iobase;
2717         uint16_t data;
2718         LIST_HEAD(done_q);
2719
2720         /* ENTER("qla1280_poll"); */
2721
2722         /* Check for pending interrupts. */
2723         data = RD_REG_WORD(&reg->istatus);
2724         if (data & RISC_INT)
2725                 qla1280_isr(ha, &done_q);
2726
2727         if (!ha->mailbox_wait) {
2728                 if (ha->flags.reset_marker)
2729                         qla1280_rst_aen(ha);
2730         }
2731
2732         if (!list_empty(&done_q))
2733                 qla1280_done(ha);
2734
2735         /* LEAVE("qla1280_poll"); */
2736 }
2737
2738 /*
2739  * qla1280_bus_reset
2740  *      Issue SCSI bus reset.
2741  *
2742  * Input:
2743  *      ha  = adapter block pointer.
2744  *      bus = SCSI bus number.
2745  *
2746  * Returns:
2747  *      0 = success
2748  */
2749 static int
2750 qla1280_bus_reset(struct scsi_qla_host *ha, int bus)
2751 {
2752         uint16_t mb[MAILBOX_REGISTER_COUNT];
2753         uint16_t reset_delay;
2754         int status;
2755
2756         dprintk(3, "qla1280_bus_reset: entered\n");
2757
2758         if (qla1280_verbose)
2759                 printk(KERN_INFO "scsi(%li:%i): Resetting SCSI BUS\n",
2760                        ha->host_no, bus);
2761
2762         reset_delay = ha->bus_settings[bus].bus_reset_delay;
2763         mb[0] = MBC_BUS_RESET;
2764         mb[1] = reset_delay;
2765         mb[2] = (uint16_t) bus;
2766         status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2767
2768         if (status) {
2769                 if (ha->bus_settings[bus].failed_reset_count > 2)
2770                         ha->bus_settings[bus].scsi_bus_dead = 1;
2771                 ha->bus_settings[bus].failed_reset_count++;
2772         } else {
2773                 spin_unlock_irq(HOST_LOCK);
2774                 ssleep(reset_delay);
2775                 spin_lock_irq(HOST_LOCK);
2776
2777                 ha->bus_settings[bus].scsi_bus_dead = 0;
2778                 ha->bus_settings[bus].failed_reset_count = 0;
2779                 ha->bus_settings[bus].reset_marker = 0;
2780                 /* Issue marker command. */
2781                 qla1280_marker(ha, bus, 0, 0, MK_SYNC_ALL);
2782         }
2783
2784         /*
2785          * We should probably call qla1280_set_target_parameters()
2786          * here as well for all devices on the bus.
2787          */
2788
2789         if (status)
2790                 dprintk(2, "qla1280_bus_reset: **** FAILED ****\n");
2791         else
2792                 dprintk(3, "qla1280_bus_reset: exiting normally\n");
2793
2794         return status;
2795 }
2796
2797 /*
2798  * qla1280_device_reset
2799  *      Issue bus device reset message to the target.
2800  *
2801  * Input:
2802  *      ha      = adapter block pointer.
2803  *      bus     = SCSI BUS number.
2804  *      target  = SCSI ID.
2805  *
2806  * Returns:
2807  *      0 = success
2808  */
2809 static int
2810 qla1280_device_reset(struct scsi_qla_host *ha, int bus, int target)
2811 {
2812         uint16_t mb[MAILBOX_REGISTER_COUNT];
2813         int status;
2814
2815         ENTER("qla1280_device_reset");
2816
2817         mb[0] = MBC_ABORT_TARGET;
2818         mb[1] = (bus ? (target | BIT_7) : target) << 8;
2819         mb[2] = 1;
2820         status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2821
2822         /* Issue marker command. */
2823         qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
2824
2825         if (status)
2826                 dprintk(2, "qla1280_device_reset: **** FAILED ****\n");
2827
2828         LEAVE("qla1280_device_reset");
2829         return status;
2830 }
2831
2832 /*
2833  * qla1280_abort_device
2834  *      Issue an abort message to the device
2835  *
2836  * Input:
2837  *      ha     = adapter block pointer.
2838  *      bus    = SCSI BUS.
2839  *      target = SCSI ID.
2840  *      lun    = SCSI LUN.
2841  *
2842  * Returns:
2843  *      0 = success
2844  */
2845 static int
2846 qla1280_abort_device(struct scsi_qla_host *ha, int bus, int target, int lun)
2847 {
2848         uint16_t mb[MAILBOX_REGISTER_COUNT];
2849         int status;
2850
2851         ENTER("qla1280_abort_device");
2852
2853         mb[0] = MBC_ABORT_DEVICE;
2854         mb[1] = (bus ? target | BIT_7 : target) << 8 | lun;
2855         status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2856
2857         /* Issue marker command. */
2858         qla1280_marker(ha, bus, target, lun, MK_SYNC_ID_LUN);
2859
2860         if (status)
2861                 dprintk(2, "qla1280_abort_device: **** FAILED ****\n");
2862
2863         LEAVE("qla1280_abort_device");
2864         return status;
2865 }
2866
2867 /*
2868  * qla1280_abort_command
2869  *      Abort command aborts a specified IOCB.
2870  *
2871  * Input:
2872  *      ha = adapter block pointer.
2873  *      sp = SB structure pointer.
2874  *
2875  * Returns:
2876  *      0 = success
2877  */
2878 static int
2879 qla1280_abort_command(struct scsi_qla_host *ha, struct srb * sp, int handle)
2880 {
2881         uint16_t mb[MAILBOX_REGISTER_COUNT];
2882         unsigned int bus, target, lun;
2883         int status;
2884
2885         ENTER("qla1280_abort_command");
2886
2887         bus = SCSI_BUS_32(sp->cmd);
2888         target = SCSI_TCN_32(sp->cmd);
2889         lun = SCSI_LUN_32(sp->cmd);
2890
2891         sp->flags |= SRB_ABORT_PENDING;
2892
2893         mb[0] = MBC_ABORT_COMMAND;
2894         mb[1] = (bus ? target | BIT_7 : target) << 8 | lun;
2895         mb[2] = handle >> 16;
2896         mb[3] = handle & 0xffff;
2897         status = qla1280_mailbox_command(ha, 0x0f, &mb[0]);
2898
2899         if (status) {
2900                 dprintk(2, "qla1280_abort_command: **** FAILED ****\n");
2901                 sp->flags &= ~SRB_ABORT_PENDING;
2902         }
2903
2904
2905         LEAVE("qla1280_abort_command");
2906         return status;
2907 }
2908
2909 /*
2910  * qla1280_reset_adapter
2911  *      Reset adapter.
2912  *
2913  * Input:
2914  *      ha = adapter block pointer.
2915  */
2916 static void
2917 qla1280_reset_adapter(struct scsi_qla_host *ha)
2918 {
2919         struct device_reg __iomem *reg = ha->iobase;
2920
2921         ENTER("qla1280_reset_adapter");
2922
2923         /* Disable ISP chip */
2924         ha->flags.online = 0;
2925         WRT_REG_WORD(&reg->ictrl, ISP_RESET);
2926         WRT_REG_WORD(&reg->host_cmd,
2927                      HC_RESET_RISC | HC_RELEASE_RISC | HC_DISABLE_BIOS);
2928         RD_REG_WORD(&reg->id_l);        /* Flush PCI write */
2929
2930         LEAVE("qla1280_reset_adapter");
2931 }
2932
2933 /*
2934  *  Issue marker command.
2935  *      Function issues marker IOCB.
2936  *
2937  * Input:
2938  *      ha   = adapter block pointer.
2939  *      bus  = SCSI BUS number
2940  *      id   = SCSI ID
2941  *      lun  = SCSI LUN
2942  *      type = marker modifier
2943  */
2944 static void
2945 qla1280_marker(struct scsi_qla_host *ha, int bus, int id, int lun, u8 type)
2946 {
2947         struct mrk_entry *pkt;
2948
2949         ENTER("qla1280_marker");
2950
2951         /* Get request packet. */
2952         if ((pkt = (struct mrk_entry *) qla1280_req_pkt(ha))) {
2953                 pkt->entry_type = MARKER_TYPE;
2954                 pkt->lun = (uint8_t) lun;
2955                 pkt->target = (uint8_t) (bus ? (id | BIT_7) : id);
2956                 pkt->modifier = type;
2957                 pkt->entry_status = 0;
2958
2959                 /* Issue command to ISP */
2960                 qla1280_isp_cmd(ha);
2961         }
2962
2963         LEAVE("qla1280_marker");
2964 }
2965
2966
2967 /*
2968  * qla1280_64bit_start_scsi
2969  *      The start SCSI is responsible for building request packets on
2970  *      request ring and modifying ISP input pointer.
2971  *
2972  * Input:
2973  *      ha = adapter block pointer.
2974  *      sp = SB structure pointer.
2975  *
2976  * Returns:
2977  *      0 = success, was able to issue command.
2978  */
2979 #ifdef QLA_64BIT_PTR
2980 static int
2981 qla1280_64bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
2982 {
2983         struct device_reg __iomem *reg = ha->iobase;
2984         struct scsi_cmnd *cmd = sp->cmd;
2985         cmd_a64_entry_t *pkt;
2986         struct scatterlist *sg = NULL;
2987         __le32 *dword_ptr;
2988         dma_addr_t dma_handle;
2989         int status = 0;
2990         int cnt;
2991         int req_cnt;
2992         u16 seg_cnt;
2993         u8 dir;
2994
2995         ENTER("qla1280_64bit_start_scsi:");
2996
2997         /* Calculate number of entries and segments required. */
2998         req_cnt = 1;
2999         if (cmd->use_sg) {
3000                 sg = (struct scatterlist *) cmd->request_buffer;
3001                 seg_cnt = pci_map_sg(ha->pdev, sg, cmd->use_sg,
3002                                      cmd->sc_data_direction);
3003
3004                 if (seg_cnt > 2) {
3005                         req_cnt += (seg_cnt - 2) / 5;
3006                         if ((seg_cnt - 2) % 5)
3007                                 req_cnt++;
3008                 }
3009         } else if (cmd->request_bufflen) {      /* If data transfer. */
3010                 seg_cnt = 1;
3011         } else {
3012                 seg_cnt = 0;
3013         }
3014
3015         if ((req_cnt + 2) >= ha->req_q_cnt) {
3016                 /* Calculate number of free request entries. */
3017                 cnt = RD_REG_WORD(&reg->mailbox4);
3018                 if (ha->req_ring_index < cnt)
3019                         ha->req_q_cnt = cnt - ha->req_ring_index;
3020                 else
3021                         ha->req_q_cnt =
3022                                 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
3023         }
3024
3025         dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
3026                 ha->req_q_cnt, seg_cnt);
3027
3028         /* If room for request in request ring. */
3029         if ((req_cnt + 2) >= ha->req_q_cnt) {
3030                 status = 1;
3031                 dprintk(2, "qla1280_start_scsi: in-ptr=0x%x  req_q_cnt="
3032                         "0x%xreq_cnt=0x%x", ha->req_ring_index, ha->req_q_cnt,
3033                         req_cnt);
3034                 goto out;
3035         }
3036
3037         /* Check for room in outstanding command list. */
3038         for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
3039                      ha->outstanding_cmds[cnt] != 0; cnt++);
3040
3041         if (cnt >= MAX_OUTSTANDING_COMMANDS) {
3042                 status = 1;
3043                 dprintk(2, "qla1280_start_scsi: NO ROOM IN "
3044                         "OUTSTANDING ARRAY, req_q_cnt=0x%x", ha->req_q_cnt);
3045                 goto out;
3046         }
3047
3048         ha->outstanding_cmds[cnt] = sp;
3049         ha->req_q_cnt -= req_cnt;
3050         CMD_HANDLE(sp->cmd) = (unsigned char *)(unsigned long)(cnt + 1);
3051
3052         dprintk(2, "start: cmd=%p sp=%p CDB=%xm, handle %lx\n", cmd, sp,
3053                 cmd->cmnd[0], (long)CMD_HANDLE(sp->cmd));
3054         dprintk(2, "             bus %i, target %i, lun %i\n",
3055                 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
3056         qla1280_dump_buffer(2, cmd->cmnd, MAX_COMMAND_SIZE);
3057
3058         /*
3059          * Build command packet.
3060          */
3061         pkt = (cmd_a64_entry_t *) ha->request_ring_ptr;
3062
3063         pkt->entry_type = COMMAND_A64_TYPE;
3064         pkt->entry_count = (uint8_t) req_cnt;
3065         pkt->sys_define = (uint8_t) ha->req_ring_index;
3066         pkt->entry_status = 0;
3067         pkt->handle = cpu_to_le32(cnt);
3068
3069         /* Zero out remaining portion of packet. */
3070         memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
3071
3072         /* Set ISP command timeout. */
3073         pkt->timeout = cpu_to_le16(30);
3074
3075         /* Set device target ID and LUN */
3076         pkt->lun = SCSI_LUN_32(cmd);
3077         pkt->target = SCSI_BUS_32(cmd) ?
3078                 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
3079
3080         /* Enable simple tag queuing if device supports it. */
3081         if (DEV_SIMPLE_TAGS(cmd->device))
3082                 pkt->control_flags |= cpu_to_le16(BIT_3);
3083
3084         /* Load SCSI command packet. */
3085         pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
3086         memcpy(pkt->scsi_cdb, &(CMD_CDBP(cmd)), CMD_CDBLEN(cmd));
3087         /* dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
3088
3089         /* Set transfer direction. */
3090         dir = qla1280_data_direction(cmd);
3091         pkt->control_flags |= cpu_to_le16(dir);
3092
3093         /* Set total data segment count. */
3094         pkt->dseg_count = cpu_to_le16(seg_cnt);
3095
3096         /*
3097          * Load data segments.
3098          */
3099         if (seg_cnt) {  /* If data transfer. */
3100                 /* Setup packet address segment pointer. */
3101                 dword_ptr = (u32 *)&pkt->dseg_0_address;
3102
3103                 if (cmd->use_sg) {      /* If scatter gather */
3104                         /* Load command entry data segments. */
3105                         for (cnt = 0; cnt < 2 && seg_cnt; cnt++, seg_cnt--) {
3106                                 dma_handle = sg_dma_address(sg);
3107 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
3108                                 if (ha->flags.use_pci_vchannel)
3109                                         sn_pci_set_vchan(ha->pdev,
3110                                                         (unsigned long *)&dma_handle,
3111                                                          SCSI_BUS_32(cmd));
3112 #endif
3113                                 *dword_ptr++ =
3114                                         cpu_to_le32(pci_dma_lo32(dma_handle));
3115                                 *dword_ptr++ =
3116                                         cpu_to_le32(pci_dma_hi32(dma_handle));
3117                                 *dword_ptr++ = cpu_to_le32(sg_dma_len(sg));
3118                                 sg++;
3119                                 dprintk(3, "S/G Segment phys_addr=%x %x, len=0x%x\n",
3120                                         cpu_to_le32(pci_dma_hi32(dma_handle)),
3121                                         cpu_to_le32(pci_dma_lo32(dma_handle)),
3122                                         cpu_to_le32(sg_dma_len(sg)));
3123                         }
3124                         dprintk(5, "qla1280_64bit_start_scsi: Scatter/gather "
3125                                 "command packet data - b %i, t %i, l %i \n",
3126                                 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd),
3127                                 SCSI_LUN_32(cmd));
3128                         qla1280_dump_buffer(5, (char *)pkt,
3129                                             REQUEST_ENTRY_SIZE);
3130
3131                         /*
3132                          * Build continuation packets.
3133                          */
3134                         dprintk(3, "S/G Building Continuation...seg_cnt=0x%x "
3135                                 "remains\n", seg_cnt);
3136
3137                         while (seg_cnt > 0) {
3138                                 /* Adjust ring index. */
3139                                 ha->req_ring_index++;
3140                                 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3141                                         ha->req_ring_index = 0;
3142                                         ha->request_ring_ptr =
3143                                                 ha->request_ring;
3144                                 } else
3145                                                 ha->request_ring_ptr++;
3146
3147                                 pkt = (cmd_a64_entry_t *)ha->request_ring_ptr;
3148
3149                                 /* Zero out packet. */
3150                                 memset(pkt, 0, REQUEST_ENTRY_SIZE);
3151
3152                                 /* Load packet defaults. */
3153                                 ((struct cont_a64_entry *) pkt)->entry_type =
3154                                         CONTINUE_A64_TYPE;
3155                                 ((struct cont_a64_entry *) pkt)->entry_count = 1;
3156                                 ((struct cont_a64_entry *) pkt)->sys_define =
3157                                         (uint8_t)ha->req_ring_index;
3158                                 /* Setup packet address segment pointer. */
3159                                 dword_ptr =
3160                                         (u32 *)&((struct cont_a64_entry *) pkt)->dseg_0_address;
3161
3162                                 /* Load continuation entry data segments. */
3163                                 for (cnt = 0; cnt < 5 && seg_cnt;
3164                                      cnt++, seg_cnt--) {
3165                                         dma_handle = sg_dma_address(sg);
3166 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
3167                                 if (ha->flags.use_pci_vchannel)
3168                                         sn_pci_set_vchan(ha->pdev, 
3169                                                         (unsigned long *)&dma_handle,
3170                                                          SCSI_BUS_32(cmd));
3171 #endif
3172                                         *dword_ptr++ =
3173                                                 cpu_to_le32(pci_dma_lo32(dma_handle));
3174                                         *dword_ptr++ =
3175                                                 cpu_to_le32(pci_dma_hi32(dma_handle));
3176                                         *dword_ptr++ =
3177                                                 cpu_to_le32(sg_dma_len(sg));
3178                                         dprintk(3, "S/G Segment Cont. phys_addr=%x %x, len=0x%x\n",
3179                                                 cpu_to_le32(pci_dma_hi32(dma_handle)),
3180                                                 cpu_to_le32(pci_dma_lo32(dma_handle)),
3181                                                 cpu_to_le32(sg_dma_len(sg)));
3182                                         sg++;
3183                                 }
3184                                 dprintk(5, "qla1280_64bit_start_scsi: "
3185                                         "continuation packet data - b %i, t "
3186                                         "%i, l %i \n", SCSI_BUS_32(cmd),
3187                                         SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
3188                                 qla1280_dump_buffer(5, (char *)pkt,
3189                                                     REQUEST_ENTRY_SIZE);
3190                         }
3191                 } else {        /* No scatter gather data transfer */
3192                         dma_handle = pci_map_single(ha->pdev,
3193                                         cmd->request_buffer,
3194                                         cmd->request_bufflen,
3195                                         cmd->sc_data_direction);
3196
3197                         sp->saved_dma_handle = dma_handle;
3198 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
3199                         if (ha->flags.use_pci_vchannel)
3200                                 sn_pci_set_vchan(ha->pdev, 
3201                                                 (unsigned long *)&dma_handle,
3202                                                  SCSI_BUS_32(cmd));
3203 #endif
3204                         *dword_ptr++ = cpu_to_le32(pci_dma_lo32(dma_handle));
3205                         *dword_ptr++ = cpu_to_le32(pci_dma_hi32(dma_handle));
3206                         *dword_ptr = cpu_to_le32(cmd->request_bufflen);
3207
3208                         dprintk(5, "qla1280_64bit_start_scsi: No scatter/"
3209                                 "gather command packet data - b %i, t %i, "
3210                                 "l %i \n", SCSI_BUS_32(cmd), SCSI_TCN_32(cmd),
3211                                 SCSI_LUN_32(cmd));
3212                         qla1280_dump_buffer(5, (char *)pkt,
3213                                             REQUEST_ENTRY_SIZE);
3214                 }
3215         } else {        /* No data transfer */
3216                 dprintk(5, "qla1280_64bit_start_scsi: No data, command "
3217                         "packet data - b %i, t %i, l %i \n",
3218                         SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
3219                 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
3220         }
3221         /* Adjust ring index. */
3222         ha->req_ring_index++;
3223         if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3224                 ha->req_ring_index = 0;
3225                 ha->request_ring_ptr = ha->request_ring;
3226         } else
3227                 ha->request_ring_ptr++;
3228
3229         /* Set chip new ring index. */
3230         dprintk(2,
3231                 "qla1280_64bit_start_scsi: Wakeup RISC for pending command\n");
3232         sp->flags |= SRB_SENT;
3233         ha->actthreads++;
3234         WRT_REG_WORD(&reg->mailbox4, ha->req_ring_index);
3235         /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */
3236         mmiowb();
3237
3238  out:
3239         if (status)
3240                 dprintk(2, "qla1280_64bit_start_scsi: **** FAILED ****\n");
3241         else
3242                 dprintk(3, "qla1280_64bit_start_scsi: exiting normally\n");
3243
3244         return status;
3245 }
3246 #else /* !QLA_64BIT_PTR */
3247
3248 /*
3249  * qla1280_32bit_start_scsi
3250  *      The start SCSI is responsible for building request packets on
3251  *      request ring and modifying ISP input pointer.
3252  *
3253  *      The Qlogic firmware interface allows every queue slot to have a SCSI
3254  *      command and up to 4 scatter/gather (SG) entries.  If we need more
3255  *      than 4 SG entries, then continuation entries are used that can
3256  *      hold another 7 entries each.  The start routine determines if there
3257  *      is eought empty slots then build the combination of requests to
3258  *      fulfill the OS request.
3259  *
3260  * Input:
3261  *      ha = adapter block pointer.
3262  *      sp = SCSI Request Block structure pointer.
3263  *
3264  * Returns:
3265  *      0 = success, was able to issue command.
3266  */
3267 static int
3268 qla1280_32bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
3269 {
3270         struct device_reg __iomem *reg = ha->iobase;
3271         struct scsi_cmnd *cmd = sp->cmd;
3272         struct cmd_entry *pkt;
3273         struct scatterlist *sg = NULL;
3274         __le32 *dword_ptr;
3275         int status = 0;
3276         int cnt;
3277         int req_cnt;
3278         uint16_t seg_cnt;
3279         dma_addr_t dma_handle;
3280         u8 dir;
3281
3282         ENTER("qla1280_32bit_start_scsi");
3283
3284         dprintk(1, "32bit_start: cmd=%p sp=%p CDB=%x\n", cmd, sp,
3285                 cmd->cmnd[0]);
3286
3287         /* Calculate number of entries and segments required. */
3288         req_cnt = 1;
3289         if (cmd->use_sg) {
3290                 /*
3291                  * We must build an SG list in adapter format, as the kernel's
3292                  * SG list cannot be used directly because of data field size
3293                  * (__alpha__) differences and the kernel SG list uses virtual
3294                  * addresses where we need physical addresses.
3295                  */
3296                 sg = (struct scatterlist *) cmd->request_buffer;
3297                 seg_cnt = pci_map_sg(ha->pdev, sg, cmd->use_sg,
3298                                      cmd->sc_data_direction);
3299
3300                 /*
3301                  * if greater than four sg entries then we need to allocate
3302                  * continuation entries
3303                  */
3304                 if (seg_cnt > 4) {
3305                         req_cnt += (seg_cnt - 4) / 7;
3306                         if ((seg_cnt - 4) % 7)
3307                                 req_cnt++;
3308                 }
3309                 dprintk(3, "S/G Transfer cmd=%p seg_cnt=0x%x, req_cnt=%x\n",
3310                         cmd, seg_cnt, req_cnt);
3311         } else if (cmd->request_bufflen) {      /* If data transfer. */
3312                 dprintk(3, "No S/G transfer t=%x cmd=%p len=%x CDB=%x\n",
3313                         SCSI_TCN_32(cmd), cmd, cmd->request_bufflen,
3314                         cmd->cmnd[0]);
3315                 seg_cnt = 1;
3316         } else {
3317                 /* dprintk(1, "No data transfer \n"); */
3318                 seg_cnt = 0;
3319         }
3320
3321         if ((req_cnt + 2) >= ha->req_q_cnt) {
3322                 /* Calculate number of free request entries. */
3323                 cnt = RD_REG_WORD(&reg->mailbox4);
3324                 if (ha->req_ring_index < cnt)
3325                         ha->req_q_cnt = cnt - ha->req_ring_index;
3326                 else
3327                         ha->req_q_cnt =
3328                                 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
3329         }
3330
3331         dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
3332                 ha->req_q_cnt, seg_cnt);
3333         /* If room for request in request ring. */
3334         if ((req_cnt + 2) >= ha->req_q_cnt) {
3335                 status = 1;
3336                 dprintk(2, "qla1280_32bit_start_scsi: in-ptr=0x%x, "
3337                         "req_q_cnt=0x%x, req_cnt=0x%x", ha->req_ring_index,
3338                         ha->req_q_cnt, req_cnt);
3339                 goto out;
3340         }
3341
3342         /* Check for empty slot in outstanding command list. */
3343         for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
3344                      (ha->outstanding_cmds[cnt] != 0); cnt++) ;
3345
3346         if (cnt >= MAX_OUTSTANDING_COMMANDS) {
3347                 status = 1;
3348                 dprintk(2, "qla1280_32bit_start_scsi: NO ROOM IN OUTSTANDING "
3349                         "ARRAY, req_q_cnt=0x%x\n", ha->req_q_cnt);
3350                 goto out;
3351         }
3352
3353         CMD_HANDLE(sp->cmd) = (unsigned char *) (unsigned long)(cnt + 1);
3354         ha->outstanding_cmds[cnt] = sp;
3355         ha->req_q_cnt -= req_cnt;
3356
3357         /*
3358          * Build command packet.
3359          */
3360         pkt = (struct cmd_entry *) ha->request_ring_ptr;
3361
3362         pkt->entry_type = COMMAND_TYPE;
3363         pkt->entry_count = (uint8_t) req_cnt;
3364         pkt->sys_define = (uint8_t) ha->req_ring_index;
3365         pkt->entry_status = 0;
3366         pkt->handle = cpu_to_le32(cnt);
3367
3368         /* Zero out remaining portion of packet. */
3369         memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
3370
3371         /* Set ISP command timeout. */
3372         pkt->timeout = cpu_to_le16(30);
3373
3374         /* Set device target ID and LUN */
3375         pkt->lun = SCSI_LUN_32(cmd);
3376         pkt->target = SCSI_BUS_32(cmd) ?
3377                 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
3378
3379         /* Enable simple tag queuing if device supports it. */
3380         if (DEV_SIMPLE_TAGS(cmd->device))
3381                 pkt->control_flags |= cpu_to_le16(BIT_3);
3382
3383         /* Load SCSI command packet. */
3384         pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
3385         memcpy(pkt->scsi_cdb, &(CMD_CDBP(cmd)), CMD_CDBLEN(cmd));
3386
3387         /*dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
3388         /* Set transfer direction. */
3389         dir = qla1280_data_direction(cmd);
3390         pkt->control_flags |= cpu_to_le16(dir);
3391
3392         /* Set total data segment count. */
3393         pkt->dseg_count = cpu_to_le16(seg_cnt);
3394
3395         /*
3396          * Load data segments.
3397          */
3398         if (seg_cnt) {
3399                 /* Setup packet address segment pointer. */
3400                 dword_ptr = &pkt->dseg_0_address;
3401
3402                 if (cmd->use_sg) {      /* If scatter gather */
3403                         dprintk(3, "Building S/G data segments..\n");
3404                         qla1280_dump_buffer(1, (char *)sg, 4 * 16);
3405
3406                         /* Load command entry data segments. */
3407                         for (cnt = 0; cnt < 4 && seg_cnt; cnt++, seg_cnt--) {
3408                                 *dword_ptr++ =
3409                                         cpu_to_le32(pci_dma_lo32(sg_dma_address(sg)));
3410                                 *dword_ptr++ =
3411                                         cpu_to_le32(sg_dma_len(sg));
3412                                 dprintk(3, "S/G Segment phys_addr=0x%lx, len=0x%x\n",
3413                                         (pci_dma_lo32(sg_dma_address(sg))),
3414                                         (sg_dma_len(sg)));
3415                                 sg++;
3416                         }
3417                         /*
3418                          * Build continuation packets.
3419                          */
3420                         dprintk(3, "S/G Building Continuation"
3421                                 "...seg_cnt=0x%x remains\n", seg_cnt);
3422                         while (seg_cnt > 0) {
3423                                 /* Adjust ring index. */
3424                                 ha->req_ring_index++;
3425                                 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3426                                         ha->req_ring_index = 0;
3427                                         ha->request_ring_ptr =
3428                                                 ha->request_ring;
3429                                 } else
3430                                         ha->request_ring_ptr++;
3431
3432                                 pkt = (struct cmd_entry *)ha->request_ring_ptr;
3433
3434                                 /* Zero out packet. */
3435                                 memset(pkt, 0, REQUEST_ENTRY_SIZE);
3436
3437                                 /* Load packet defaults. */
3438                                 ((struct cont_entry *) pkt)->
3439                                         entry_type = CONTINUE_TYPE;
3440                                 ((struct cont_entry *) pkt)->entry_count = 1;
3441
3442                                 ((struct cont_entry *) pkt)->sys_define =
3443                                         (uint8_t) ha->req_ring_index;
3444
3445                                 /* Setup packet address segment pointer. */
3446                                 dword_ptr =
3447                                         &((struct cont_entry *) pkt)->dseg_0_address;
3448
3449                                 /* Load continuation entry data segments. */
3450                                 for (cnt = 0; cnt < 7 && seg_cnt;
3451                                      cnt++, seg_cnt--) {
3452                                         *dword_ptr++ =
3453                                                 cpu_to_le32(pci_dma_lo32(sg_dma_address(sg)));
3454                                         *dword_ptr++ =
3455                                                 cpu_to_le32(sg_dma_len(sg));
3456                                         dprintk(1,
3457                                                 "S/G Segment Cont. phys_addr=0x%x, "
3458                                                 "len=0x%x\n",
3459                                                 cpu_to_le32(pci_dma_lo32(sg_dma_address(sg))),
3460                                                 cpu_to_le32(sg_dma_len(sg)));
3461                                         sg++;
3462                                 }
3463                                 dprintk(5, "qla1280_32bit_start_scsi: "
3464                                         "continuation packet data - "
3465                                         "scsi(%i:%i:%i)\n", SCSI_BUS_32(cmd),
3466                                         SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
3467                                 qla1280_dump_buffer(5, (char *)pkt,
3468                                                     REQUEST_ENTRY_SIZE);
3469                         }
3470                 } else {        /* No S/G data transfer */
3471                         dma_handle = pci_map_single(ha->pdev,
3472                                         cmd->request_buffer,
3473                                         cmd->request_bufflen,
3474                                         cmd->sc_data_direction);
3475                         sp->saved_dma_handle = dma_handle;
3476
3477                         *dword_ptr++ = cpu_to_le32(pci_dma_lo32(dma_handle));
3478                         *dword_ptr = cpu_to_le32(cmd->request_bufflen);
3479                 }
3480         } else {        /* No data transfer at all */
3481                 dprintk(5, "qla1280_32bit_start_scsi: No data, command "
3482                         "packet data - \n");
3483                 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
3484         }
3485         dprintk(5, "qla1280_32bit_start_scsi: First IOCB block:\n");
3486         qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
3487                             REQUEST_ENTRY_SIZE);
3488
3489         /* Adjust ring index. */
3490         ha->req_ring_index++;
3491         if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3492                 ha->req_ring_index = 0;
3493                 ha->request_ring_ptr = ha->request_ring;
3494         } else
3495                 ha->request_ring_ptr++;
3496
3497         /* Set chip new ring index. */
3498         dprintk(2, "qla1280_32bit_start_scsi: Wakeup RISC "
3499                 "for pending command\n");
3500         sp->flags |= SRB_SENT;
3501         ha->actthreads++;
3502         WRT_REG_WORD(&reg->mailbox4, ha->req_ring_index);
3503         /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */
3504         mmiowb();
3505
3506 out:
3507         if (status)
3508                 dprintk(2, "qla1280_32bit_start_scsi: **** FAILED ****\n");
3509
3510         LEAVE("qla1280_32bit_start_scsi");
3511
3512         return status;
3513 }
3514 #endif
3515
3516 /*
3517  * qla1280_req_pkt
3518  *      Function is responsible for locking ring and
3519  *      getting a zeroed out request packet.
3520  *
3521  * Input:
3522  *      ha  = adapter block pointer.
3523  *
3524  * Returns:
3525  *      0 = failed to get slot.
3526  */
3527 static request_t *
3528 qla1280_req_pkt(struct scsi_qla_host *ha)
3529 {
3530         struct device_reg __iomem *reg = ha->iobase;
3531         request_t *pkt = NULL;
3532         int cnt;
3533         uint32_t timer;
3534
3535         ENTER("qla1280_req_pkt");
3536
3537         /*
3538          * This can be called from interrupt context, damn it!!!
3539          */
3540         /* Wait for 30 seconds for slot. */
3541         for (timer = 15000000; timer; timer--) {
3542                 if (ha->req_q_cnt > 0) {
3543                         /* Calculate number of free request entries. */
3544                         cnt = RD_REG_WORD(&reg->mailbox4);
3545                         if (ha->req_ring_index < cnt)
3546                                 ha->req_q_cnt = cnt - ha->req_ring_index;
3547                         else
3548                                 ha->req_q_cnt =
3549                                         REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
3550                 }
3551
3552                 /* Found empty request ring slot? */
3553                 if (ha->req_q_cnt > 0) {
3554                         ha->req_q_cnt--;
3555                         pkt = ha->request_ring_ptr;
3556
3557                         /* Zero out packet. */
3558                         memset(pkt, 0, REQUEST_ENTRY_SIZE);
3559
3560                         /*
3561                          * How can this be right when we have a ring
3562                          * size of 512???
3563                          */
3564                         /* Set system defined field. */
3565                         pkt->sys_define = (uint8_t) ha->req_ring_index;
3566
3567                         /* Set entry count. */
3568                         pkt->entry_count = 1;
3569
3570                         break;
3571                 }
3572
3573                 udelay(2);      /* 10 */
3574
3575                 /* Check for pending interrupts. */
3576                 qla1280_poll(ha);
3577         }
3578
3579         if (!pkt)
3580                 dprintk(2, "qla1280_req_pkt: **** FAILED ****\n");
3581         else
3582                 dprintk(3, "qla1280_req_pkt: exiting normally\n");
3583
3584         return pkt;
3585 }
3586
3587 /*
3588  * qla1280_isp_cmd
3589  *      Function is responsible for modifying ISP input pointer.
3590  *      Releases ring lock.
3591  *
3592  * Input:
3593  *      ha  = adapter block pointer.
3594  */
3595 static void
3596 qla1280_isp_cmd(struct scsi_qla_host *ha)
3597 {
3598         struct device_reg __iomem *reg = ha->iobase;
3599
3600         ENTER("qla1280_isp_cmd");
3601
3602         dprintk(5, "qla1280_isp_cmd: IOCB data:\n");
3603         qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
3604                             REQUEST_ENTRY_SIZE);
3605
3606         /* Adjust ring index. */
3607         ha->req_ring_index++;
3608         if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3609                 ha->req_ring_index = 0;
3610                 ha->request_ring_ptr = ha->request_ring;
3611         } else
3612                 ha->request_ring_ptr++;
3613
3614         /*
3615          * Update request index to mailbox4 (Request Queue In).
3616          * The mmiowb() ensures that this write is ordered with writes by other
3617          * CPUs.  Without the mmiowb(), it is possible for the following:
3618          *    CPUA posts write of index 5 to mailbox4
3619          *    CPUA releases host lock
3620          *    CPUB acquires host lock
3621          *    CPUB posts write of index 6 to mailbox4
3622          *    On PCI bus, order reverses and write of 6 posts, then index 5,
3623          *       causing chip to issue full queue of stale commands
3624          * The mmiowb() prevents future writes from crossing the barrier.
3625          * See Documentation/DocBook/deviceiobook.tmpl for more information.
3626          */
3627         WRT_REG_WORD(&reg->mailbox4, ha->req_ring_index);
3628         mmiowb();
3629
3630         LEAVE("qla1280_isp_cmd");
3631 }
3632
3633 /****************************************************************************/
3634 /*                        Interrupt Service Routine.                        */
3635 /****************************************************************************/
3636
3637 /****************************************************************************
3638  *  qla1280_isr
3639  *      Calls I/O done on command completion.
3640  *
3641  * Input:
3642  *      ha           = adapter block pointer.
3643  *      done_q       = done queue.
3644  ****************************************************************************/
3645 static void
3646 qla1280_isr(struct scsi_qla_host *ha, struct list_head *done_q)
3647 {
3648         struct device_reg __iomem *reg = ha->iobase;
3649         struct response *pkt;
3650         struct srb *sp = NULL;
3651         uint16_t mailbox[MAILBOX_REGISTER_COUNT];
3652         uint16_t *wptr;
3653         uint32_t index;
3654         u16 istatus;
3655
3656         ENTER("qla1280_isr");
3657
3658         istatus = RD_REG_WORD(&reg->istatus);
3659         if (!(istatus & (RISC_INT | PCI_INT)))
3660                 return;
3661
3662         /* Save mailbox register 5 */
3663         mailbox[5] = RD_REG_WORD(&reg->mailbox5);
3664
3665         /* Check for mailbox interrupt. */
3666
3667         mailbox[0] = RD_REG_WORD_dmasync(&reg->semaphore);
3668
3669         if (mailbox[0] & BIT_0) {
3670                 /* Get mailbox data. */
3671                 /* dprintk(1, "qla1280_isr: In Get mailbox data \n"); */
3672
3673                 wptr = &mailbox[0];
3674                 *wptr++ = RD_REG_WORD(&reg->mailbox0);
3675                 *wptr++ = RD_REG_WORD(&reg->mailbox1);
3676                 *wptr = RD_REG_WORD(&reg->mailbox2);
3677                 if (mailbox[0] != MBA_SCSI_COMPLETION) {
3678                         wptr++;
3679                         *wptr++ = RD_REG_WORD(&reg->mailbox3);
3680                         *wptr++ = RD_REG_WORD(&reg->mailbox4);
3681                         wptr++;
3682                         *wptr++ = RD_REG_WORD(&reg->mailbox6);
3683                         *wptr = RD_REG_WORD(&reg->mailbox7);
3684                 }
3685
3686                 /* Release mailbox registers. */
3687
3688                 WRT_REG_WORD(&reg->semaphore, 0);
3689                 WRT_REG_WORD(&reg->host_cmd, HC_CLR_RISC_INT);
3690
3691                 dprintk(5, "qla1280_isr: mailbox interrupt mailbox[0] = 0x%x",
3692                         mailbox[0]);
3693
3694                 /* Handle asynchronous event */
3695                 switch (mailbox[0]) {
3696                 case MBA_SCSI_COMPLETION:       /* Response completion */
3697                         dprintk(5, "qla1280_isr: mailbox SCSI response "
3698                                 "completion\n");
3699
3700                         if (ha->flags.online) {
3701                                 /* Get outstanding command index. */
3702                                 index = mailbox[2] << 16 | mailbox[1];
3703
3704                                 /* Validate handle. */
3705                                 if (index < MAX_OUTSTANDING_COMMANDS)
3706                                         sp = ha->outstanding_cmds[index];
3707                                 else
3708                                         sp = NULL;
3709
3710                                 if (sp) {
3711                                         /* Free outstanding command slot. */
3712                                         ha->outstanding_cmds[index] = NULL;
3713
3714                                         /* Save ISP completion status */
3715                                         CMD_RESULT(sp->cmd) = 0;
3716
3717                                         /* Place block on done queue */
3718                                         list_add_tail(&sp->list, done_q);
3719                                 } else {
3720                                         /*
3721                                          * If we get here we have a real problem!
3722                                          */
3723                                         printk(KERN_WARNING
3724                                                "qla1280: ISP invalid handle");
3725                                 }
3726                         }
3727                         break;
3728
3729                 case MBA_BUS_RESET:     /* SCSI Bus Reset */
3730                         ha->flags.reset_marker = 1;
3731                         index = mailbox[6] & BIT_0;
3732                         ha->bus_settings[index].reset_marker = 1;
3733
3734                         printk(KERN_DEBUG "qla1280_isr(): index %i "
3735                                "asynchronous BUS_RESET\n", index);
3736                         break;
3737
3738                 case MBA_SYSTEM_ERR:    /* System Error */
3739                         printk(KERN_WARNING
3740                                "qla1280: ISP System Error - mbx1=%xh, mbx2="
3741                                "%xh, mbx3=%xh\n", mailbox[1], mailbox[2],
3742                                mailbox[3]);
3743                         break;
3744
3745                 case MBA_REQ_TRANSFER_ERR:      /* Request Transfer Error */
3746                         printk(KERN_WARNING
3747                                "qla1280: ISP Request Transfer Error\n");
3748                         break;
3749
3750                 case MBA_RSP_TRANSFER_ERR:      /* Response Transfer Error */
3751                         printk(KERN_WARNING
3752                                "qla1280: ISP Response Transfer Error\n");
3753                         break;
3754
3755                 case MBA_WAKEUP_THRES:  /* Request Queue Wake-up */
3756                         dprintk(2, "qla1280_isr: asynchronous WAKEUP_THRES\n");
3757                         break;
3758
3759                 case MBA_TIMEOUT_RESET: /* Execution Timeout Reset */
3760                         dprintk(2,
3761                                 "qla1280_isr: asynchronous TIMEOUT_RESET\n");
3762                         break;
3763
3764                 case MBA_DEVICE_RESET:  /* Bus Device Reset */
3765                         printk(KERN_INFO "qla1280_isr(): asynchronous "
3766                                "BUS_DEVICE_RESET\n");
3767
3768                         ha->flags.reset_marker = 1;
3769                         index = mailbox[6] & BIT_0;
3770                         ha->bus_settings[index].reset_marker = 1;
3771                         break;
3772
3773                 case MBA_BUS_MODE_CHANGE:
3774                         dprintk(2,
3775                                 "qla1280_isr: asynchronous BUS_MODE_CHANGE\n");
3776                         break;
3777
3778                 default:
3779                         /* dprintk(1, "qla1280_isr: default case of switch MB \n"); */
3780                         if (mailbox[0] < MBA_ASYNC_EVENT) {
3781                                 wptr = &mailbox[0];
3782                                 memcpy((uint16_t *) ha->mailbox_out, wptr,
3783                                        MAILBOX_REGISTER_COUNT *
3784                                        sizeof(uint16_t));
3785
3786                                 if(ha->mailbox_wait != NULL)
3787                                         complete(ha->mailbox_wait);
3788                         }
3789                         break;
3790                 }
3791         } else {
3792                 WRT_REG_WORD(&reg->host_cmd, HC_CLR_RISC_INT);
3793         }
3794
3795         /*
3796          * We will receive interrupts during mailbox testing prior to
3797          * the card being marked online, hence the double check.
3798          */
3799         if (!(ha->flags.online && !ha->mailbox_wait)) {
3800                 dprintk(2, "qla1280_isr: Response pointer Error\n");
3801                 goto out;
3802         }
3803
3804         if (mailbox[5] >= RESPONSE_ENTRY_CNT)
3805                 goto out;
3806
3807         while (ha->rsp_ring_index != mailbox[5]) {
3808                 pkt = ha->response_ring_ptr;
3809
3810                 dprintk(5, "qla1280_isr: ha->rsp_ring_index = 0x%x, mailbox[5]"
3811                         " = 0x%x\n", ha->rsp_ring_index, mailbox[5]);
3812                 dprintk(5,"qla1280_isr: response packet data\n");
3813                 qla1280_dump_buffer(5, (char *)pkt, RESPONSE_ENTRY_SIZE);
3814
3815                 if (pkt->entry_type == STATUS_TYPE) {
3816                         if ((le16_to_cpu(pkt->scsi_status) & 0xff)
3817                             || pkt->comp_status || pkt->entry_status) {
3818                                 dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
3819                                         "0x%x mailbox[5] = 0x%x, comp_status "
3820                                         "= 0x%x, scsi_status = 0x%x\n",
3821                                         ha->rsp_ring_index, mailbox[5],
3822                                         le16_to_cpu(pkt->comp_status),
3823                                         le16_to_cpu(pkt->scsi_status));
3824                         }
3825                 } else {
3826                         dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
3827                                 "0x%x, mailbox[5] = 0x%x\n",
3828                                 ha->rsp_ring_index, mailbox[5]);
3829                         dprintk(2, "qla1280_isr: response packet data\n");
3830                         qla1280_dump_buffer(2, (char *)pkt,
3831                                             RESPONSE_ENTRY_SIZE);
3832                 }
3833
3834                 if (pkt->entry_type == STATUS_TYPE || pkt->entry_status) {
3835                         dprintk(2, "status: Cmd %p, handle %i\n",
3836                                 ha->outstanding_cmds[pkt->handle]->cmd,
3837                                 pkt->handle);
3838                         if (pkt->entry_type == STATUS_TYPE)
3839                                 qla1280_status_entry(ha, pkt, done_q);
3840                         else
3841                                 qla1280_error_entry(ha, pkt, done_q);
3842                         /* Adjust ring index. */
3843                         ha->rsp_ring_index++;
3844                         if (ha->rsp_ring_index == RESPONSE_ENTRY_CNT) {
3845                                 ha->rsp_ring_index = 0;
3846                                 ha->response_ring_ptr = ha->response_ring;
3847                         } else
3848                                 ha->response_ring_ptr++;
3849                         WRT_REG_WORD(&reg->mailbox5, ha->rsp_ring_index);
3850                 }
3851         }
3852         
3853  out:
3854         LEAVE("qla1280_isr");
3855 }
3856
3857 /*
3858  *  qla1280_rst_aen
3859  *      Processes asynchronous reset.
3860  *
3861  * Input:
3862  *      ha  = adapter block pointer.
3863  */
3864 static void
3865 qla1280_rst_aen(struct scsi_qla_host *ha)
3866 {
3867         uint8_t bus;
3868
3869         ENTER("qla1280_rst_aen");
3870
3871         if (ha->flags.online && !ha->flags.reset_active &&
3872             !ha->flags.abort_isp_active) {
3873                 ha->flags.reset_active = 1;
3874                 while (ha->flags.reset_marker) {
3875                         /* Issue marker command. */
3876                         ha->flags.reset_marker = 0;
3877                         for (bus = 0; bus < ha->ports &&
3878                                      !ha->flags.reset_marker; bus++) {
3879                                 if (ha->bus_settings[bus].reset_marker) {
3880                                         ha->bus_settings[bus].reset_marker = 0;
3881                                         qla1280_marker(ha, bus, 0, 0,
3882                                                        MK_SYNC_ALL);
3883                                 }
3884                         }
3885                 }
3886         }
3887
3888         LEAVE("qla1280_rst_aen");
3889 }
3890
3891
3892 #if LINUX_VERSION_CODE < 0x020500
3893 /*
3894  *
3895  */
3896 static void
3897 qla1280_get_target_options(struct scsi_cmnd *cmd, struct scsi_qla_host *ha)
3898 {
3899         unsigned char *result;
3900         struct nvram *n;
3901         int bus, target, lun;
3902
3903         bus = SCSI_BUS_32(cmd);
3904         target = SCSI_TCN_32(cmd);
3905         lun = SCSI_LUN_32(cmd);
3906
3907         /*
3908          * Make sure to not touch anything if someone is using the
3909          * sg interface.
3910          */
3911         if (cmd->use_sg || (CMD_RESULT(cmd) >> 16) != DID_OK || lun)
3912                 return;
3913
3914         result = cmd->request_buffer;
3915         n = &ha->nvram;
3916
3917         n->bus[bus].target[target].parameter.enable_wide = 0;
3918         n->bus[bus].target[target].parameter.enable_sync = 0;
3919         n->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 0;
3920
3921         if (result[7] & 0x60)
3922                 n->bus[bus].target[target].parameter.enable_wide = 1;
3923         if (result[7] & 0x10)
3924                 n->bus[bus].target[target].parameter.enable_sync = 1;
3925         if ((result[2] >= 3) && (result[4] + 5 > 56) &&
3926             (result[56] & 0x4))
3927                 n->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 1;
3928
3929         dprintk(2, "get_target_options(): wide %i, sync %i, ppr %i\n",
3930                 n->bus[bus].target[target].parameter.enable_wide,
3931                 n->bus[bus].target[target].parameter.enable_sync,
3932                 n->bus[bus].target[target].ppr_1x160.flags.enable_ppr);
3933 }
3934 #endif
3935
3936 /*
3937  *  qla1280_status_entry
3938  *      Processes received ISP status entry.
3939  *
3940  * Input:
3941  *      ha           = adapter block pointer.
3942  *      pkt          = entry pointer.
3943  *      done_q       = done queue.
3944  */
3945 static void
3946 qla1280_status_entry(struct scsi_qla_host *ha, struct response *pkt,
3947                      struct list_head *done_q)
3948 {
3949         unsigned int bus, target, lun;
3950         int sense_sz;
3951         struct srb *sp;
3952         struct scsi_cmnd *cmd;
3953         uint32_t handle = le32_to_cpu(pkt->handle);
3954         uint16_t scsi_status = le16_to_cpu(pkt->scsi_status);
3955         uint16_t comp_status = le16_to_cpu(pkt->comp_status);
3956
3957         ENTER("qla1280_status_entry");
3958
3959         /* Validate handle. */
3960         if (handle < MAX_OUTSTANDING_COMMANDS)
3961                 sp = ha->outstanding_cmds[handle];
3962         else
3963                 sp = NULL;
3964
3965         if (!sp) {
3966                 printk(KERN_WARNING "qla1280: Status Entry invalid handle\n");
3967                 goto out;
3968         }
3969
3970         /* Free outstanding command slot. */
3971         ha->outstanding_cmds[handle] = NULL;
3972
3973         cmd = sp->cmd;
3974
3975         /* Generate LU queue on cntrl, target, LUN */
3976         bus = SCSI_BUS_32(cmd);
3977         target = SCSI_TCN_32(cmd);
3978         lun = SCSI_LUN_32(cmd);
3979
3980         if (comp_status || scsi_status) {
3981                 dprintk(3, "scsi: comp_status = 0x%x, scsi_status = "
3982                         "0x%x, handle = 0x%x\n", comp_status,
3983                         scsi_status, handle);
3984         }
3985
3986         /* Target busy or queue full */
3987         if ((scsi_status & 0xFF) == SAM_STAT_TASK_SET_FULL ||
3988             (scsi_status & 0xFF) == SAM_STAT_BUSY) {
3989                 CMD_RESULT(cmd) = scsi_status & 0xff;
3990         } else {
3991
3992                 /* Save ISP completion status */
3993                 CMD_RESULT(cmd) = qla1280_return_status(pkt, cmd);
3994
3995                 if (scsi_status & SAM_STAT_CHECK_CONDITION) {
3996                         if (comp_status != CS_ARS_FAILED) {
3997                                 uint16_t req_sense_length =
3998                                         le16_to_cpu(pkt->req_sense_length);
3999                                 if (req_sense_length < CMD_SNSLEN(cmd))
4000                                         sense_sz = req_sense_length;
4001                                 else
4002                                         /*
4003                                          * scsi_cmnd->sense_buffer is
4004                                          * 64 bytes, why only copy 63?
4005                                          * This looks wrong! /Jes
4006                                          */
4007                                         sense_sz = CMD_SNSLEN(cmd) - 1;
4008
4009                                 memcpy(cmd->sense_buffer,
4010                                        &pkt->req_sense_data, sense_sz);
4011                         } else
4012                                 sense_sz = 0;
4013                         memset(cmd->sense_buffer + sense_sz, 0,
4014                                sizeof(cmd->sense_buffer) - sense_sz);
4015
4016                         dprintk(2, "qla1280_status_entry: Check "
4017                                 "condition Sense data, b %i, t %i, "
4018                                 "l %i\n", bus, target, lun);
4019                         if (sense_sz)
4020                                 qla1280_dump_buffer(2,
4021                                                     (char *)cmd->sense_buffer,
4022                                                     sense_sz);
4023                 }
4024         }
4025
4026         /* Place command on done queue. */
4027         list_add_tail(&sp->list, done_q);
4028  out:
4029         LEAVE("qla1280_status_entry");
4030 }
4031
4032 /*
4033  *  qla1280_error_entry
4034  *      Processes error entry.
4035  *
4036  * Input:
4037  *      ha           = adapter block pointer.
4038  *      pkt          = entry pointer.
4039  *      done_q       = done queue.
4040  */
4041 static void
4042 qla1280_error_entry(struct scsi_qla_host *ha, struct response *pkt,
4043                     struct list_head *done_q)
4044 {
4045         struct srb *sp;
4046         uint32_t handle = le32_to_cpu(pkt->handle);
4047
4048         ENTER("qla1280_error_entry");
4049
4050         if (pkt->entry_status & BIT_3)
4051                 dprintk(2, "qla1280_error_entry: BAD PAYLOAD flag error\n");
4052         else if (pkt->entry_status & BIT_2)
4053                 dprintk(2, "qla1280_error_entry: BAD HEADER flag error\n");
4054         else if (pkt->entry_status & BIT_1)
4055                 dprintk(2, "qla1280_error_entry: FULL flag error\n");
4056         else
4057                 dprintk(2, "qla1280_error_entry: UNKNOWN flag error\n");
4058
4059         /* Validate handle. */
4060         if (handle < MAX_OUTSTANDING_COMMANDS)
4061                 sp = ha->outstanding_cmds[handle];
4062         else
4063                 sp = NULL;
4064
4065         if (sp) {
4066                 /* Free outstanding command slot. */
4067                 ha->outstanding_cmds[handle] = NULL;
4068
4069                 /* Bad payload or header */
4070                 if (pkt->entry_status & (BIT_3 + BIT_2)) {
4071                         /* Bad payload or header, set error status. */
4072                         /* CMD_RESULT(sp->cmd) = CS_BAD_PAYLOAD; */
4073                         CMD_RESULT(sp->cmd) = DID_ERROR << 16;
4074                 } else if (pkt->entry_status & BIT_1) { /* FULL flag */
4075                         CMD_RESULT(sp->cmd) = DID_BUS_BUSY << 16;
4076                 } else {
4077                         /* Set error status. */
4078                         CMD_RESULT(sp->cmd) = DID_ERROR << 16;
4079                 }
4080
4081                 /* Place command on done queue. */
4082                 list_add_tail(&sp->list, done_q);
4083         }
4084 #ifdef QLA_64BIT_PTR
4085         else if (pkt->entry_type == COMMAND_A64_TYPE) {
4086                 printk(KERN_WARNING "!qla1280: Error Entry invalid handle");
4087         }
4088 #endif
4089
4090         LEAVE("qla1280_error_entry");
4091 }
4092
4093 /*
4094  *  qla1280_abort_isp
4095  *      Resets ISP and aborts all outstanding commands.
4096  *
4097  * Input:
4098  *      ha           = adapter block pointer.
4099  *
4100  * Returns:
4101  *      0 = success
4102  */
4103 static int
4104 qla1280_abort_isp(struct scsi_qla_host *ha)
4105 {
4106         struct device_reg __iomem *reg = ha->iobase;
4107         struct srb *sp;
4108         int status = 0;
4109         int cnt;
4110         int bus;
4111
4112         ENTER("qla1280_abort_isp");
4113
4114         if (ha->flags.abort_isp_active || !ha->flags.online)
4115                 goto out;
4116         
4117         ha->flags.abort_isp_active = 1;
4118
4119         /* Disable ISP interrupts. */
4120         qla1280_disable_intrs(ha);
4121         WRT_REG_WORD(&reg->host_cmd, HC_PAUSE_RISC);
4122         RD_REG_WORD(&reg->id_l);
4123
4124         printk(KERN_INFO "scsi(%li): dequeuing outstanding commands\n",
4125                ha->host_no);
4126         /* Dequeue all commands in outstanding command list. */
4127         for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
4128                 struct scsi_cmnd *cmd;
4129                 sp = ha->outstanding_cmds[cnt];
4130                 if (sp) {
4131
4132                         cmd = sp->cmd;
4133                         CMD_RESULT(cmd) = DID_RESET << 16;
4134
4135                         sp->cmd = NULL;
4136                         ha->outstanding_cmds[cnt] = NULL;
4137
4138                         (*cmd->scsi_done)(cmd);
4139
4140                         sp->flags = 0;
4141                 }
4142         }
4143
4144         status = qla1280_load_firmware(ha);
4145         if (status)
4146                 goto out;
4147
4148         /* Setup adapter based on NVRAM parameters. */
4149         qla1280_nvram_config (ha);
4150
4151         status = qla1280_init_rings(ha);
4152         if (status)
4153                 goto out;
4154                 
4155         /* Issue SCSI reset. */
4156         for (bus = 0; bus < ha->ports; bus++)
4157                 qla1280_bus_reset(ha, bus);
4158                 
4159         ha->flags.abort_isp_active = 0;
4160  out:
4161         if (status) {
4162                 printk(KERN_WARNING
4163                        "qla1280: ISP error recovery failed, board disabled");
4164                 qla1280_reset_adapter(ha);
4165                 dprintk(2, "qla1280_abort_isp: **** FAILED ****\n");
4166         }
4167
4168         LEAVE("qla1280_abort_isp");
4169         return status;
4170 }
4171
4172
4173 /*
4174  * qla1280_debounce_register
4175  *      Debounce register.
4176  *
4177  * Input:
4178  *      port = register address.
4179  *
4180  * Returns:
4181  *      register value.
4182  */
4183 static u16
4184 qla1280_debounce_register(volatile u16 __iomem * addr)
4185 {
4186         volatile u16 ret;
4187         volatile u16 ret2;
4188
4189         ret = RD_REG_WORD(addr);
4190         ret2 = RD_REG_WORD(addr);
4191
4192         if (ret == ret2)
4193                 return ret;
4194
4195         do {
4196                 cpu_relax();
4197                 ret = RD_REG_WORD(addr);
4198                 ret2 = RD_REG_WORD(addr);
4199         } while (ret != ret2);
4200
4201         return ret;
4202 }
4203
4204
4205 /************************************************************************
4206  * qla1280_check_for_dead_scsi_bus                                      *
4207  *                                                                      *
4208  *    This routine checks for a dead SCSI bus                           *
4209  ************************************************************************/
4210 #define SET_SXP_BANK            0x0100
4211 #define SCSI_PHASE_INVALID      0x87FF
4212 static int
4213 qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *ha, unsigned int bus)
4214 {
4215         uint16_t config_reg, scsi_control;
4216         struct device_reg __iomem *reg = ha->iobase;
4217
4218         if (ha->bus_settings[bus].scsi_bus_dead) {
4219                 WRT_REG_WORD(&reg->host_cmd, HC_PAUSE_RISC);
4220                 config_reg = RD_REG_WORD(&reg->cfg_1);
4221                 WRT_REG_WORD(&reg->cfg_1, SET_SXP_BANK);
4222                 scsi_control = RD_REG_WORD(&reg->scsiControlPins);
4223                 WRT_REG_WORD(&reg->cfg_1, config_reg);
4224                 WRT_REG_WORD(&reg->host_cmd, HC_RELEASE_RISC);
4225
4226                 if (scsi_control == SCSI_PHASE_INVALID) {
4227                         ha->bus_settings[bus].scsi_bus_dead = 1;
4228 #if 0
4229                         CMD_RESULT(cp) = DID_NO_CONNECT << 16;
4230                         CMD_HANDLE(cp) = INVALID_HANDLE;
4231                         /* ha->actthreads--; */
4232
4233                         (*(cp)->scsi_done)(cp);
4234 #endif
4235                         return 1;       /* bus is dead */
4236                 } else {
4237                         ha->bus_settings[bus].scsi_bus_dead = 0;
4238                         ha->bus_settings[bus].failed_reset_count = 0;
4239                 }
4240         }
4241         return 0;               /* bus is not dead */
4242 }
4243
4244 static void
4245 qla1280_get_target_parameters(struct scsi_qla_host *ha,
4246                               struct scsi_device *device)
4247 {
4248         uint16_t mb[MAILBOX_REGISTER_COUNT];
4249         int bus, target, lun;
4250
4251         bus = device->channel;
4252         target = device->id;
4253         lun = device->lun;
4254
4255
4256         mb[0] = MBC_GET_TARGET_PARAMETERS;
4257         mb[1] = (uint16_t) (bus ? target | BIT_7 : target);
4258         mb[1] <<= 8;
4259         qla1280_mailbox_command(ha, BIT_6 | BIT_3 | BIT_2 | BIT_1 | BIT_0,
4260                                 &mb[0]);
4261
4262         printk(KERN_INFO "scsi(%li:%d:%d:%d):", ha->host_no, bus, target, lun);
4263
4264         if (mb[3] != 0) {
4265                 printk(" Sync: period %d, offset %d",
4266                        (mb[3] & 0xff), (mb[3] >> 8));
4267                 if (mb[2] & BIT_13)
4268                         printk(", Wide");
4269                 if ((mb[2] & BIT_5) && ((mb[6] >> 8) & 0xff) >= 2)
4270                         printk(", DT");
4271         } else
4272                 printk(" Async");
4273
4274         if (DEV_SIMPLE_TAGS(device))
4275                 printk(", Tagged queuing: depth %d", device->queue_depth);
4276         printk("\n");
4277 }
4278
4279
4280 #if DEBUG_QLA1280
4281 static void
4282 __qla1280_dump_buffer(char *b, int size)
4283 {
4284         int cnt;
4285         u8 c;
4286
4287         printk(KERN_DEBUG " 0   1   2   3   4   5   6   7   8   9   Ah  "
4288                "Bh  Ch  Dh  Eh  Fh\n");
4289         printk(KERN_DEBUG "---------------------------------------------"
4290                "------------------\n");
4291
4292         for (cnt = 0; cnt < size;) {
4293                 c = *b++;
4294
4295                 printk("0x%02x", c);
4296                 cnt++;
4297                 if (!(cnt % 16))
4298                         printk("\n");
4299                 else
4300                         printk(" ");
4301         }
4302         if (cnt % 16)
4303                 printk("\n");
4304 }
4305
4306 /**************************************************************************
4307  *   ql1280_print_scsi_cmd
4308  *
4309  **************************************************************************/
4310 static void
4311 __qla1280_print_scsi_cmd(struct scsi_cmnd *cmd)
4312 {
4313         struct scsi_qla_host *ha;
4314         struct Scsi_Host *host = CMD_HOST(cmd);
4315         struct srb *sp;
4316         /* struct scatterlist *sg; */
4317
4318         int i;
4319         ha = (struct scsi_qla_host *)host->hostdata;
4320
4321         sp = (struct srb *)CMD_SP(cmd);
4322         printk("SCSI Command @= 0x%p, Handle=0x%p\n", cmd, CMD_HANDLE(cmd));
4323         printk("  chan=%d, target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n",
4324                SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd),
4325                CMD_CDBLEN(cmd));
4326         printk(" CDB = ");
4327         for (i = 0; i < cmd->cmd_len; i++) {
4328                 printk("0x%02x ", cmd->cmnd[i]);
4329         }
4330         printk("  seg_cnt =%d\n", cmd->use_sg);
4331         printk("  request buffer=0x%p, request buffer len=0x%x\n",
4332                cmd->request_buffer, cmd->request_bufflen);
4333         /* if (cmd->use_sg)
4334            {
4335            sg = (struct scatterlist *) cmd->request_buffer;
4336            printk("  SG buffer: \n");
4337            qla1280_dump_buffer(1, (char *)sg, (cmd->use_sg*sizeof(struct scatterlist)));
4338            } */
4339         printk("  tag=%d, transfersize=0x%x \n",
4340                cmd->tag, cmd->transfersize);
4341         printk("  Pid=%li, SP=0x%p\n", cmd->pid, CMD_SP(cmd));
4342         printk(" underflow size = 0x%x, direction=0x%x\n",
4343                cmd->underflow, cmd->sc_data_direction);
4344 }
4345
4346 /**************************************************************************
4347  *   ql1280_dump_device
4348  *
4349  **************************************************************************/
4350 static void
4351 ql1280_dump_device(struct scsi_qla_host *ha)
4352 {
4353
4354         struct scsi_cmnd *cp;
4355         struct srb *sp;
4356         int i;
4357
4358         printk(KERN_DEBUG "Outstanding Commands on controller:\n");
4359
4360         for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
4361                 if ((sp = ha->outstanding_cmds[i]) == NULL)
4362                         continue;
4363                 if ((cp = sp->cmd) == NULL)
4364                         continue;
4365                 qla1280_print_scsi_cmd(1, cp);
4366         }
4367 }
4368 #endif
4369
4370
4371 enum tokens {
4372         TOKEN_NVRAM,
4373         TOKEN_SYNC,
4374         TOKEN_WIDE,
4375         TOKEN_PPR,
4376         TOKEN_VERBOSE,
4377         TOKEN_DEBUG,
4378 };
4379
4380 struct setup_tokens {
4381         char *token;
4382         int val;
4383 };
4384
4385 static struct setup_tokens setup_token[] __initdata = 
4386 {
4387         { "nvram", TOKEN_NVRAM },
4388         { "sync", TOKEN_SYNC },
4389         { "wide", TOKEN_WIDE },
4390         { "ppr", TOKEN_PPR },
4391         { "verbose", TOKEN_VERBOSE },
4392         { "debug", TOKEN_DEBUG },
4393 };
4394
4395
4396 /**************************************************************************
4397  *   qla1280_setup
4398  *
4399  *   Handle boot parameters. This really needs to be changed so one
4400  *   can specify per adapter parameters.
4401  **************************************************************************/
4402 static int __init
4403 qla1280_setup(char *s)
4404 {
4405         char *cp, *ptr;
4406         unsigned long val;
4407         int toke;
4408
4409         cp = s;
4410
4411         while (cp && (ptr = strchr(cp, ':'))) {
4412                 ptr++;
4413                 if (!strcmp(ptr, "yes")) {
4414                         val = 0x10000;
4415                         ptr += 3;
4416                 } else if (!strcmp(ptr, "no")) {
4417                         val = 0;
4418                         ptr += 2;
4419                 } else
4420                         val = simple_strtoul(ptr, &ptr, 0);
4421
4422                 switch ((toke = qla1280_get_token(cp))) {
4423                 case TOKEN_NVRAM:
4424                         if (!val)
4425                                 driver_setup.no_nvram = 1;
4426                         break;
4427                 case TOKEN_SYNC:
4428                         if (!val)
4429                                 driver_setup.no_sync = 1;
4430                         else if (val != 0x10000)
4431                                 driver_setup.sync_mask = val;
4432                         break;
4433                 case TOKEN_WIDE:
4434                         if (!val)
4435                                 driver_setup.no_wide = 1;
4436                         else if (val != 0x10000)
4437                                 driver_setup.wide_mask = val;
4438                         break;
4439                 case TOKEN_PPR:
4440                         if (!val)
4441                                 driver_setup.no_ppr = 1;
4442                         else if (val != 0x10000)
4443                                 driver_setup.ppr_mask = val;
4444                         break;
4445                 case TOKEN_VERBOSE:
4446                         qla1280_verbose = val;
4447                         break;
4448                 default:
4449                         printk(KERN_INFO "qla1280: unknown boot option %s\n",
4450                                cp);
4451                 }
4452
4453                 cp = strchr(ptr, ';');
4454                 if (cp)
4455                         cp++;
4456                 else {
4457                         break;
4458                 }
4459         }
4460         return 1;
4461 }
4462
4463
4464 static int
4465 qla1280_get_token(char *str)
4466 {
4467         char *sep;
4468         long ret = -1;
4469         int i, len;
4470
4471         len = sizeof(setup_token)/sizeof(struct setup_tokens);
4472
4473         sep = strchr(str, ':');
4474
4475         if (sep) {
4476                 for (i = 0; i < len; i++){
4477
4478                         if (!strncmp(setup_token[i].token, str, (sep - str))) {
4479                                 ret =  setup_token[i].val;
4480                                 break;
4481                         }
4482                 }
4483         }
4484
4485         return ret;
4486 }
4487
4488 #if LINUX_VERSION_CODE >= 0x020600
4489 static struct scsi_host_template qla1280_driver_template = {
4490         .module                 = THIS_MODULE,
4491         .proc_name              = "qla1280",
4492         .name                   = "Qlogic ISP 1280/12160",
4493         .info                   = qla1280_info,
4494         .slave_configure        = qla1280_slave_configure,
4495         .queuecommand           = qla1280_queuecommand,
4496         .eh_abort_handler       = qla1280_eh_abort,
4497         .eh_device_reset_handler= qla1280_eh_device_reset,
4498         .eh_bus_reset_handler   = qla1280_eh_bus_reset,
4499         .eh_host_reset_handler  = qla1280_eh_adapter_reset,
4500         .bios_param             = qla1280_biosparam,
4501         .can_queue              = 0xfffff,
4502         .this_id                = -1,
4503         .sg_tablesize           = SG_ALL,
4504         .cmd_per_lun            = 1,
4505         .use_clustering         = ENABLE_CLUSTERING,
4506 };
4507 #else
4508 static struct scsi_host_template qla1280_driver_template = {
4509         .proc_name              = "qla1280",
4510         .name                   = "Qlogic ISP 1280/12160",
4511         .detect                 = qla1280_detect,
4512         .release                = qla1280_release,
4513         .info                   = qla1280_info,
4514         .queuecommand           = qla1280_queuecommand,
4515         .eh_abort_handler       = qla1280_eh_abort,
4516         .eh_device_reset_handler= qla1280_eh_device_reset,
4517         .eh_bus_reset_handler   = qla1280_eh_bus_reset,
4518         .eh_host_reset_handler  = qla1280_eh_adapter_reset,
4519         .bios_param             = qla1280_biosparam_old,
4520         .can_queue              = 0xfffff,
4521         .this_id                = -1,
4522         .sg_tablesize           = SG_ALL,
4523         .cmd_per_lun            = 1,
4524         .use_clustering         = ENABLE_CLUSTERING,
4525         .use_new_eh_code        = 1,
4526 };
4527 #endif
4528
4529 static int __devinit
4530 qla1280_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
4531 {
4532         int devnum = id->driver_data;
4533         struct qla_boards *bdp = &ql1280_board_tbl[devnum];
4534         struct Scsi_Host *host;
4535         struct scsi_qla_host *ha;
4536         int error = -ENODEV;
4537
4538         /* Bypass all AMI SUBSYS VENDOR IDs */
4539         if (pdev->subsystem_vendor == PCI_VENDOR_ID_AMI) {
4540                 printk(KERN_INFO
4541                        "qla1280: Skipping AMI SubSys Vendor ID Chip\n");
4542                 goto error;
4543         }
4544
4545         printk(KERN_INFO "qla1280: %s found on PCI bus %i, dev %i\n",
4546                bdp->name, pdev->bus->number, PCI_SLOT(pdev->devfn));
4547         
4548         if (pci_enable_device(pdev)) {
4549                 printk(KERN_WARNING
4550                        "qla1280: Failed to enabled pci device, aborting.\n");
4551                 goto error;
4552         }
4553
4554         pci_set_master(pdev);
4555
4556         error = -ENOMEM;
4557         host = scsi_host_alloc(&qla1280_driver_template, sizeof(*ha));
4558         if (!host) {
4559                 printk(KERN_WARNING
4560                        "qla1280: Failed to register host, aborting.\n");
4561                 goto error_disable_device;
4562         }
4563
4564         ha = (struct scsi_qla_host *)host->hostdata;
4565         memset(ha, 0, sizeof(struct scsi_qla_host));
4566
4567         ha->pdev = pdev;
4568         ha->devnum = devnum;    /* specifies microcode load address */
4569
4570 #ifdef QLA_64BIT_PTR
4571         if (pci_set_dma_mask(ha->pdev, (dma_addr_t) ~ 0ULL)) {
4572                 if (pci_set_dma_mask(ha->pdev, 0xffffffff)) {
4573                         printk(KERN_WARNING "scsi(%li): Unable to set a "
4574                                "suitable DMA mask - aborting\n", ha->host_no);
4575                         error = -ENODEV;
4576                         goto error_free_irq;
4577                 }
4578         } else
4579                 dprintk(2, "scsi(%li): 64 Bit PCI Addressing Enabled\n",
4580                         ha->host_no);
4581 #else
4582         if (pci_set_dma_mask(ha->pdev, 0xffffffff)) {
4583                 printk(KERN_WARNING "scsi(%li): Unable to set a "
4584                        "suitable DMA mask - aborting\n", ha->host_no);
4585                 error = -ENODEV;
4586                 goto error_free_irq;
4587         }
4588 #endif
4589
4590         ha->request_ring = pci_alloc_consistent(ha->pdev,
4591                         ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)),
4592                         &ha->request_dma);
4593         if (!ha->request_ring) {
4594                 printk(KERN_INFO "qla1280: Failed to get request memory\n");
4595                 goto error_put_host;
4596         }
4597
4598         ha->response_ring = pci_alloc_consistent(ha->pdev,
4599                         ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)),
4600                         &ha->response_dma);
4601         if (!ha->response_ring) {
4602                 printk(KERN_INFO "qla1280: Failed to get response memory\n");
4603                 goto error_free_request_ring;
4604         }
4605
4606         ha->ports = bdp->numPorts;
4607
4608         ha->host = host;
4609         ha->host_no = host->host_no;
4610
4611         host->irq = pdev->irq;
4612         host->max_channel = bdp->numPorts - 1;
4613         host->max_lun = MAX_LUNS - 1;
4614         host->max_id = MAX_TARGETS;
4615         host->max_sectors = 1024;
4616         host->unique_id = host->host_no;
4617
4618 #if LINUX_VERSION_CODE < 0x020545
4619         host->select_queue_depths = qla1280_select_queue_depth;
4620 #endif
4621
4622         error = -ENODEV;
4623
4624 #if MEMORY_MAPPED_IO
4625         ha->mmpbase = ioremap(pci_resource_start(ha->pdev, 1),
4626                               pci_resource_len(ha->pdev, 1));
4627         if (!ha->mmpbase) {
4628                 printk(KERN_INFO "qla1280: Unable to map I/O memory\n");
4629                 goto error_free_response_ring;
4630         }
4631
4632         host->base = (unsigned long)ha->mmpbase;
4633         ha->iobase = (struct device_reg __iomem *)ha->mmpbase;
4634 #else
4635         host->io_port = pci_resource_start(ha->pdev, 0);
4636         if (!request_region(host->io_port, 0xff, "qla1280")) {
4637                 printk(KERN_INFO "qla1280: Failed to reserve i/o region "
4638                                  "0x%04lx-0x%04lx - already in use\n",
4639                        host->io_port, host->io_port + 0xff);
4640                 goto error_free_response_ring;
4641         }
4642
4643         ha->iobase = (struct device_reg *)host->io_port;
4644 #endif
4645
4646         INIT_LIST_HEAD(&ha->done_q);
4647
4648         /* Disable ISP interrupts. */
4649         qla1280_disable_intrs(ha);
4650
4651         if (request_irq(pdev->irq, qla1280_intr_handler, SA_SHIRQ,
4652                                 "qla1280", ha)) {
4653                 printk("qla1280 : Failed to reserve interrupt %d already "
4654                        "in use\n", pdev->irq);
4655                 goto error_release_region;
4656         }
4657
4658         /* load the F/W, read paramaters, and init the H/W */
4659         if (qla1280_initialize_adapter(ha)) {
4660                 printk(KERN_INFO "qla1x160: Failed to initialize adapter\n");
4661                 goto error_free_irq;
4662         }
4663
4664         /* set our host ID  (need to do something about our two IDs) */
4665         host->this_id = ha->bus_settings[0].id;
4666
4667         pci_set_drvdata(pdev, host);
4668
4669 #if LINUX_VERSION_CODE >= 0x020600
4670         error = scsi_add_host(host, &pdev->dev);
4671         if (error)
4672                 goto error_disable_adapter;
4673         scsi_scan_host(host);
4674 #else
4675         scsi_set_pci_device(host, pdev);
4676 #endif
4677
4678         return 0;
4679
4680 #if LINUX_VERSION_CODE >= 0x020600
4681  error_disable_adapter:
4682         qla1280_disable_intrs(ha);
4683 #endif
4684  error_free_irq:
4685         free_irq(pdev->irq, ha);
4686  error_release_region:
4687 #if MEMORY_MAPPED_IO
4688         iounmap(ha->mmpbase);
4689 #else
4690         release_region(host->io_port, 0xff);
4691 #endif
4692  error_free_response_ring:
4693         pci_free_consistent(ha->pdev,
4694                         ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)),
4695                         ha->response_ring, ha->response_dma);
4696  error_free_request_ring:
4697         pci_free_consistent(ha->pdev,
4698                         ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)),
4699                         ha->request_ring, ha->request_dma);
4700  error_put_host:
4701         scsi_host_put(host);
4702  error_disable_device:
4703         pci_disable_device(pdev);
4704  error:
4705         return error;
4706 }
4707
4708
4709 static void __devexit
4710 qla1280_remove_one(struct pci_dev *pdev)
4711 {
4712         struct Scsi_Host *host = pci_get_drvdata(pdev);
4713         struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
4714
4715 #if LINUX_VERSION_CODE >= 0x020600
4716         scsi_remove_host(host);
4717 #endif
4718
4719         qla1280_disable_intrs(ha);
4720
4721         free_irq(pdev->irq, ha);
4722
4723 #if MEMORY_MAPPED_IO
4724         iounmap(ha->mmpbase);
4725 #else
4726         release_region(host->io_port, 0xff);
4727 #endif
4728
4729         pci_free_consistent(ha->pdev,
4730                         ((REQUEST_ENTRY_CNT + 1) * (sizeof(request_t))),
4731                         ha->request_ring, ha->request_dma);
4732         pci_free_consistent(ha->pdev,
4733                         ((RESPONSE_ENTRY_CNT + 1) * (sizeof(struct response))),
4734                         ha->response_ring, ha->response_dma);
4735
4736         pci_disable_device(pdev);
4737
4738         scsi_host_put(host);
4739 }
4740
4741 #if LINUX_VERSION_CODE >= 0x020600
4742 static struct pci_driver qla1280_pci_driver = {
4743         .name           = "qla1280",
4744         .id_table       = qla1280_pci_tbl,
4745         .probe          = qla1280_probe_one,
4746         .remove         = __devexit_p(qla1280_remove_one),
4747 };
4748
4749 static int __init
4750 qla1280_init(void)
4751 {
4752         if (sizeof(struct srb) > sizeof(struct scsi_pointer)) {
4753                 printk(KERN_WARNING
4754                        "qla1280: struct srb too big, aborting\n");
4755                 return -EINVAL;
4756         }
4757
4758 #ifdef MODULE
4759         /*
4760          * If we are called as a module, the qla1280 pointer may not be null
4761          * and it would point to our bootup string, just like on the lilo
4762          * command line.  IF not NULL, then process this config string with
4763          * qla1280_setup
4764          *
4765          * Boot time Options
4766          * To add options at boot time add a line to your lilo.conf file like:
4767          * append="qla1280=verbose,max_tags:{{255,255,255,255},{255,255,255,255}}"
4768          * which will result in the first four devices on the first two
4769          * controllers being set to a tagged queue depth of 32.
4770          */
4771         if (qla1280)
4772                 qla1280_setup(qla1280);
4773 #endif
4774
4775         return pci_module_init(&qla1280_pci_driver);
4776 }
4777
4778 static void __exit
4779 qla1280_exit(void)
4780 {
4781         pci_unregister_driver(&qla1280_pci_driver);
4782 }
4783
4784 module_init(qla1280_init);
4785 module_exit(qla1280_exit);
4786
4787 #else
4788 # define driver_template qla1280_driver_template
4789 # include "scsi_module.c"
4790 #endif
4791
4792 MODULE_AUTHOR("Qlogic & Jes Sorensen");
4793 MODULE_DESCRIPTION("Qlogic ISP SCSI (qla1x80/qla1x160) driver");
4794 MODULE_LICENSE("GPL");
4795 MODULE_VERSION(QLA1280_VERSION);
4796
4797 /*
4798  * Overrides for Emacs so that we almost follow Linus's tabbing style.
4799  * Emacs will notice this stuff at the end of the file and automatically
4800  * adjust the settings for this buffer only.  This must remain at the end
4801  * of the file.
4802  * ---------------------------------------------------------------------------
4803  * Local variables:
4804  * c-basic-offset: 8
4805  * tab-width: 8
4806  * End:
4807  */