blob: 54d8bdf86852b7541542298b05ce1f20b0c55c9e [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/******************************************************************************
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******************************************************************************/
Jes Sorensen2dbb04c2006-01-16 11:49:29 -050020#define QLA1280_VERSION "3.26"
Linus Torvalds1da177e2005-04-16 15:20:36 -070021/*****************************************************************************
22 Revision History:
Jes Sorensen2dbb04c2006-01-16 11:49:29 -050023 Rev 3.26, January 16, 2006 Jes Sorensen
24 - Ditch all < 2.6 support
Linus Torvalds1da177e2005-04-16 15:20:36 -070025 Rev 3.25.1, February 10, 2005 Christoph Hellwig
26 - use pci_map_single to map non-S/G requests
27 - remove qla1280_proc_info
28 Rev 3.25, September 28, 2004, Christoph Hellwig
29 - add support for ISP1020/1040
30 - don't include "scsi.h" anymore for 2.6.x
31 Rev 3.24.4 June 7, 2004 Christoph Hellwig
32 - restructure firmware loading, cleanup initialization code
33 - prepare support for ISP1020/1040 chips
34 Rev 3.24.3 January 19, 2004, Jes Sorensen
35 - Handle PCI DMA mask settings correctly
36 - Correct order of error handling in probe_one, free_irq should not
37 be called if request_irq failed
38 Rev 3.24.2 January 19, 2004, James Bottomley & Andrew Vasquez
39 - Big endian fixes (James)
40 - Remove bogus IOCB content on zero data transfer commands (Andrew)
41 Rev 3.24.1 January 5, 2004, Jes Sorensen
42 - Initialize completion queue to avoid OOPS on probe
43 - Handle interrupts during mailbox testing
44 Rev 3.24 November 17, 2003, Christoph Hellwig
45 - use struct list_head for completion queue
46 - avoid old Scsi_FOO typedefs
47 - cleanup 2.4 compat glue a bit
48 - use <scsi/scsi_*.h> headers on 2.6 instead of "scsi.h"
49 - make initialization for memory mapped vs port I/O more similar
50 - remove broken pci config space manipulation
51 - kill more cruft
52 - this is an almost perfect 2.6 scsi driver now! ;)
53 Rev 3.23.39 December 17, 2003, Jes Sorensen
54 - Delete completion queue from srb if mailbox command failed to
55 to avoid qla1280_done completeting qla1280_error_action's
56 obsolete context
57 - Reduce arguments for qla1280_done
58 Rev 3.23.38 October 18, 2003, Christoph Hellwig
59 - Convert to new-style hotplugable driver for 2.6
60 - Fix missing scsi_unregister/scsi_host_put on HBA removal
61 - Kill some more cruft
62 Rev 3.23.37 October 1, 2003, Jes Sorensen
63 - Make MMIO depend on CONFIG_X86_VISWS instead of yet another
64 random CONFIG option
65 - Clean up locking in probe path
66 Rev 3.23.36 October 1, 2003, Christoph Hellwig
67 - queuecommand only ever receives new commands - clear flags
68 - Reintegrate lost fixes from Linux 2.5
69 Rev 3.23.35 August 14, 2003, Jes Sorensen
70 - Build against 2.6
71 Rev 3.23.34 July 23, 2003, Jes Sorensen
72 - Remove pointless TRUE/FALSE macros
73 - Clean up vchan handling
74 Rev 3.23.33 July 3, 2003, Jes Sorensen
75 - Don't define register access macros before define determining MMIO.
76 This just happend to work out on ia64 but not elsewhere.
77 - Don't try and read from the card while it is in reset as
78 it won't respond and causes an MCA
79 Rev 3.23.32 June 23, 2003, Jes Sorensen
80 - Basic support for boot time arguments
81 Rev 3.23.31 June 8, 2003, Jes Sorensen
82 - Reduce boot time messages
83 Rev 3.23.30 June 6, 2003, Jes Sorensen
84 - Do not enable sync/wide/ppr before it has been determined
85 that the target device actually supports it
86 - Enable DMA arbitration for multi channel controllers
87 Rev 3.23.29 June 3, 2003, Jes Sorensen
88 - Port to 2.5.69
89 Rev 3.23.28 June 3, 2003, Jes Sorensen
90 - Eliminate duplicate marker commands on bus resets
91 - Handle outstanding commands appropriately on bus/device resets
92 Rev 3.23.27 May 28, 2003, Jes Sorensen
93 - Remove bogus input queue code, let the Linux SCSI layer do the work
94 - Clean up NVRAM handling, only read it once from the card
95 - Add a number of missing default nvram parameters
96 Rev 3.23.26 Beta May 28, 2003, Jes Sorensen
97 - Use completion queue for mailbox commands instead of busy wait
98 Rev 3.23.25 Beta May 27, 2003, James Bottomley
99 - Migrate to use new error handling code
100 Rev 3.23.24 Beta May 21, 2003, James Bottomley
101 - Big endian support
102 - Cleanup data direction code
103 Rev 3.23.23 Beta May 12, 2003, Jes Sorensen
104 - Switch to using MMIO instead of PIO
105 Rev 3.23.22 Beta April 15, 2003, Jes Sorensen
106 - Fix PCI parity problem with 12160 during reset.
107 Rev 3.23.21 Beta April 14, 2003, Jes Sorensen
108 - Use pci_map_page()/pci_unmap_page() instead of map_single version.
109 Rev 3.23.20 Beta April 9, 2003, Jes Sorensen
110 - Remove < 2.4.x support
111 - Introduce HOST_LOCK to make the spin lock changes portable.
112 - Remove a bunch of idiotic and unnecessary typedef's
113 - Kill all leftovers of target-mode support which never worked anyway
114 Rev 3.23.19 Beta April 11, 2002, Linus Torvalds
115 - Do qla1280_pci_config() before calling request_irq() and
116 request_region()
117 - Use pci_dma_hi32() to handle upper word of DMA addresses instead
118 of large shifts
119 - Hand correct arguments to free_irq() in case of failure
120 Rev 3.23.18 Beta April 11, 2002, Jes Sorensen
121 - Run source through Lindent and clean up the output
122 Rev 3.23.17 Beta April 11, 2002, Jes Sorensen
123 - Update SCSI firmware to qla1280 v8.15.00 and qla12160 v10.04.32
124 Rev 3.23.16 Beta March 19, 2002, Jes Sorensen
125 - Rely on mailbox commands generating interrupts - do not
126 run qla1280_isr() from ql1280_mailbox_command()
127 - Remove device_reg_t
128 - Integrate ql12160_set_target_parameters() with 1280 version
129 - Make qla1280_setup() non static
130 - Do not call qla1280_check_for_dead_scsi_bus() on every I/O request
131 sent to the card - this command pauses the firmare!!!
132 Rev 3.23.15 Beta March 19, 2002, Jes Sorensen
133 - Clean up qla1280.h - remove obsolete QL_DEBUG_LEVEL_x definitions
134 - Remove a pile of pointless and confusing (srb_t **) and
135 (scsi_lu_t *) typecasts
136 - Explicit mark that we do not use the new error handling (for now)
137 - Remove scsi_qla_host_t and use 'struct' instead
138 - Remove in_abort, watchdog_enabled, dpc, dpc_sched, bios_enabled,
139 pci_64bit_slot flags which weren't used for anything anyway
140 - Grab host->host_lock while calling qla1280_isr() from abort()
141 - Use spin_lock()/spin_unlock() in qla1280_intr_handler() - we
142 do not need to save/restore flags in the interrupt handler
143 - Enable interrupts early (before any mailbox access) in preparation
144 for cleaning up the mailbox handling
145 Rev 3.23.14 Beta March 14, 2002, Jes Sorensen
146 - Further cleanups. Remove all trace of QL_DEBUG_LEVEL_x and replace
147 it with proper use of dprintk().
148 - Make qla1280_print_scsi_cmd() and qla1280_dump_buffer() both take
149 a debug level argument to determine if data is to be printed
150 - Add KERN_* info to printk()
151 Rev 3.23.13 Beta March 14, 2002, Jes Sorensen
152 - Significant cosmetic cleanups
153 - Change debug code to use dprintk() and remove #if mess
154 Rev 3.23.12 Beta March 13, 2002, Jes Sorensen
155 - More cosmetic cleanups, fix places treating return as function
156 - use cpu_relax() in qla1280_debounce_register()
157 Rev 3.23.11 Beta March 13, 2002, Jes Sorensen
158 - Make it compile under 2.5.5
159 Rev 3.23.10 Beta October 1, 2001, Jes Sorensen
160 - Do no typecast short * to long * in QL1280BoardTbl, this
161 broke miserably on big endian boxes
162 Rev 3.23.9 Beta September 30, 2001, Jes Sorensen
163 - Remove pre 2.2 hack for checking for reentrance in interrupt handler
164 - Make data types used to receive from SCSI_{BUS,TCN,LUN}_32
165 unsigned int to match the types from struct scsi_cmnd
166 Rev 3.23.8 Beta September 29, 2001, Jes Sorensen
167 - Remove bogus timer_t typedef from qla1280.h
168 - Remove obsolete pre 2.2 PCI setup code, use proper #define's
169 for PCI_ values, call pci_set_master()
170 - Fix memleak of qla1280_buffer on module unload
171 - Only compile module parsing code #ifdef MODULE - should be
172 changed to use individual MODULE_PARM's later
173 - Remove dummy_buffer that was never modified nor printed
174 - ENTER()/LEAVE() are noops unless QL_DEBUG_LEVEL_3, hence remove
175 #ifdef QL_DEBUG_LEVEL_3/#endif around ENTER()/LEAVE() calls
176 - Remove \r from print statements, this is Linux, not DOS
177 - Remove obsolete QLA1280_{SCSILU,INTR,RING}_{LOCK,UNLOCK}
178 dummy macros
179 - Remove C++ compile hack in header file as Linux driver are not
180 supposed to be compiled as C++
181 - Kill MS_64BITS macro as it makes the code more readable
182 - Remove unnecessary flags.in_interrupts bit
183 Rev 3.23.7 Beta August 20, 2001, Jes Sorensen
184 - Dont' check for set flags on q->q_flag one by one in qla1280_next()
185 - Check whether the interrupt was generated by the QLA1280 before
186 doing any processing
187 - qla1280_status_entry(): Only zero out part of sense_buffer that
188 is not being copied into
189 - Remove more superflouous typecasts
190 - qla1280_32bit_start_scsi() replace home-brew memcpy() with memcpy()
191 Rev 3.23.6 Beta August 20, 2001, Tony Luck, Intel
192 - Don't walk the entire list in qla1280_putq_t() just to directly
193 grab the pointer to the last element afterwards
194 Rev 3.23.5 Beta August 9, 2001, Jes Sorensen
Thomas Gleixner1d6f3592006-07-01 19:29:42 -0700195 - Don't use IRQF_DISABLED, it's use is deprecated for this kinda driver
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196 Rev 3.23.4 Beta August 8, 2001, Jes Sorensen
197 - Set dev->max_sectors to 1024
198 Rev 3.23.3 Beta August 6, 2001, Jes Sorensen
199 - Provide compat macros for pci_enable_device(), pci_find_subsys()
200 and scsi_set_pci_device()
201 - Call scsi_set_pci_device() for all devices
202 - Reduce size of kernel version dependent device probe code
203 - Move duplicate probe/init code to separate function
204 - Handle error if qla1280_mem_alloc() fails
205 - Kill OFFSET() macro and use Linux's PCI definitions instead
206 - Kill private structure defining PCI config space (struct config_reg)
207 - Only allocate I/O port region if not in MMIO mode
208 - Remove duplicate (unused) sanity check of sife of srb_t
209 Rev 3.23.2 Beta August 6, 2001, Jes Sorensen
210 - Change home-brew memset() implementations to use memset()
211 - Remove all references to COMTRACE() - accessing a PC's COM2 serial
212 port directly is not legal under Linux.
213 Rev 3.23.1 Beta April 24, 2001, Jes Sorensen
214 - Remove pre 2.2 kernel support
215 - clean up 64 bit DMA setting to use 2.4 API (provide backwards compat)
216 - Fix MMIO access to use readl/writel instead of directly
217 dereferencing pointers
218 - Nuke MSDOS debugging code
219 - Change true/false data types to int from uint8_t
220 - Use int for counters instead of uint8_t etc.
221 - Clean up size & byte order conversion macro usage
222 Rev 3.23 Beta January 11, 2001 BN Qlogic
223 - Added check of device_id when handling non
224 QLA12160s during detect().
225 Rev 3.22 Beta January 5, 2001 BN Qlogic
226 - Changed queue_task() to schedule_task()
227 for kernels 2.4.0 and higher.
228 Note: 2.4.0-testxx kernels released prior to
229 the actual 2.4.0 kernel release on January 2001
230 will get compile/link errors with schedule_task().
231 Please update your kernel to released 2.4.0 level,
232 or comment lines in this file flagged with 3.22
233 to resolve compile/link error of schedule_task().
234 - Added -DCONFIG_SMP in addition to -D__SMP__
235 in Makefile for 2.4.0 builds of driver as module.
236 Rev 3.21 Beta January 4, 2001 BN Qlogic
237 - Changed criteria of 64/32 Bit mode of HBA
238 operation according to BITS_PER_LONG rather
239 than HBA's NVRAM setting of >4Gig memory bit;
240 so that the HBA auto-configures without the need
241 to setup each system individually.
242 Rev 3.20 Beta December 5, 2000 BN Qlogic
243 - Added priority handling to IA-64 onboard SCSI
244 ISP12160 chip for kernels greater than 2.3.18.
245 - Added irqrestore for qla1280_intr_handler.
246 - Enabled /proc/scsi/qla1280 interface.
247 - Clear /proc/scsi/qla1280 counters in detect().
248 Rev 3.19 Beta October 13, 2000 BN Qlogic
249 - Declare driver_template for new kernel
250 (2.4.0 and greater) scsi initialization scheme.
251 - Update /proc/scsi entry for 2.3.18 kernels and
252 above as qla1280
253 Rev 3.18 Beta October 10, 2000 BN Qlogic
254 - Changed scan order of adapters to map
255 the QLA12160 followed by the QLA1280.
256 Rev 3.17 Beta September 18, 2000 BN Qlogic
257 - Removed warnings for 32 bit 2.4.x compiles
258 - Corrected declared size for request and response
259 DMA addresses that are kept in each ha
260 Rev. 3.16 Beta August 25, 2000 BN Qlogic
261 - Corrected 64 bit addressing issue on IA-64
262 where the upper 32 bits were not properly
263 passed to the RISC engine.
264 Rev. 3.15 Beta August 22, 2000 BN Qlogic
265 - Modified qla1280_setup_chip to properly load
266 ISP firmware for greater that 4 Gig memory on IA-64
267 Rev. 3.14 Beta August 16, 2000 BN Qlogic
268 - Added setting of dma_mask to full 64 bit
269 if flags.enable_64bit_addressing is set in NVRAM
270 Rev. 3.13 Beta August 16, 2000 BN Qlogic
271 - Use new PCI DMA mapping APIs for 2.4.x kernel
272 Rev. 3.12 July 18, 2000 Redhat & BN Qlogic
273 - Added check of pci_enable_device to detect() for 2.3.x
274 - Use pci_resource_start() instead of
275 pdev->resource[0].start in detect() for 2.3.x
276 - Updated driver version
277 Rev. 3.11 July 14, 2000 BN Qlogic
278 - Updated SCSI Firmware to following versions:
279 qla1x80: 8.13.08
280 qla1x160: 10.04.08
281 - Updated driver version to 3.11
282 Rev. 3.10 June 23, 2000 BN Qlogic
283 - Added filtering of AMI SubSys Vendor ID devices
284 Rev. 3.9
285 - DEBUG_QLA1280 undefined and new version BN Qlogic
286 Rev. 3.08b May 9, 2000 MD Dell
287 - Added logic to check against AMI subsystem vendor ID
288 Rev. 3.08 May 4, 2000 DG Qlogic
289 - Added logic to check for PCI subsystem ID.
290 Rev. 3.07 Apr 24, 2000 DG & BN Qlogic
291 - Updated SCSI Firmware to following versions:
292 qla12160: 10.01.19
293 qla1280: 8.09.00
294 Rev. 3.06 Apr 12, 2000 DG & BN Qlogic
295 - Internal revision; not released
296 Rev. 3.05 Mar 28, 2000 DG & BN Qlogic
297 - Edit correction for virt_to_bus and PROC.
298 Rev. 3.04 Mar 28, 2000 DG & BN Qlogic
299 - Merge changes from ia64 port.
300 Rev. 3.03 Mar 28, 2000 BN Qlogic
301 - Increase version to reflect new code drop with compile fix
302 of issue with inclusion of linux/spinlock for 2.3 kernels
303 Rev. 3.02 Mar 15, 2000 BN Qlogic
304 - Merge qla1280_proc_info from 2.10 code base
305 Rev. 3.01 Feb 10, 2000 BN Qlogic
306 - Corrected code to compile on a 2.2.x kernel.
307 Rev. 3.00 Jan 17, 2000 DG Qlogic
308 - Added 64-bit support.
309 Rev. 2.07 Nov 9, 1999 DG Qlogic
310 - Added new routine to set target parameters for ISP12160.
311 Rev. 2.06 Sept 10, 1999 DG Qlogic
312 - Added support for ISP12160 Ultra 3 chip.
313 Rev. 2.03 August 3, 1999 Fred Lewis, Intel DuPont
314 - Modified code to remove errors generated when compiling with
315 Cygnus IA64 Compiler.
316 - Changed conversion of pointers to unsigned longs instead of integers.
317 - Changed type of I/O port variables from uint32_t to unsigned long.
318 - Modified OFFSET macro to work with 64-bit as well as 32-bit.
319 - Changed sprintf and printk format specifiers for pointers to %p.
320 - Changed some int to long type casts where needed in sprintf & printk.
321 - Added l modifiers to sprintf and printk format specifiers for longs.
322 - Removed unused local variables.
323 Rev. 1.20 June 8, 1999 DG, Qlogic
324 Changes to support RedHat release 6.0 (kernel 2.2.5).
325 - Added SCSI exclusive access lock (io_request_lock) when accessing
326 the adapter.
327 - Added changes for the new LINUX interface template. Some new error
328 handling routines have been added to the template, but for now we
329 will use the old ones.
330 - Initial Beta Release.
331*****************************************************************************/
332
333
Linus Torvalds1da177e2005-04-16 15:20:36 -0700334#include <linux/module.h>
335
336#include <linux/version.h>
337#include <linux/types.h>
338#include <linux/string.h>
339#include <linux/errno.h>
340#include <linux/kernel.h>
341#include <linux/ioport.h>
342#include <linux/delay.h>
343#include <linux/timer.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344#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>
Matthias Gehre910638a2006-03-28 01:56:48 -0800351#include <linux/dma-mapping.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352
353#include <asm/io.h>
354#include <asm/irq.h>
355#include <asm/byteorder.h>
356#include <asm/processor.h>
357#include <asm/types.h>
358#include <asm/system.h>
359
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360#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>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365
366#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
367#include <asm/sn/io.h>
368#endif
369
Jes Sorensen2dbb04c2006-01-16 11:49:29 -0500370#if LINUX_VERSION_CODE < 0x020600
371#error "Kernels older than 2.6.0 are no longer supported"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372#endif
373
374
375/*
376 * Compile time Options:
377 * 0 - Disable and 1 - Enable
378 */
379#define DEBUG_QLA1280_INTR 0
380#define DEBUG_PRINT_NVRAM 0
381#define DEBUG_QLA1280 0
382
383/*
384 * The SGI VISWS is broken and doesn't support MMIO ;-(
385 */
386#ifdef CONFIG_X86_VISWS
387#define MEMORY_MAPPED_IO 0
388#else
389#define MEMORY_MAPPED_IO 1
390#endif
391
392#define UNIQUE_FW_NAME
393#include "qla1280.h"
394#include "ql12160_fw.h" /* ISP RISC codes */
395#include "ql1280_fw.h"
396#include "ql1040_fw.h"
397
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398#ifndef BITS_PER_LONG
399#error "BITS_PER_LONG not defined!"
400#endif
401#if (BITS_PER_LONG == 64) || defined CONFIG_HIGHMEM
402#define QLA_64BIT_PTR 1
403#endif
404
405#ifdef QLA_64BIT_PTR
406#define pci_dma_hi32(a) ((a >> 16) >> 16)
407#else
408#define pci_dma_hi32(a) 0
409#endif
410#define pci_dma_lo32(a) (a & 0xffffffff)
411
412#define NVRAM_DELAY() udelay(500) /* 2 microseconds */
413
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414#if defined(__ia64__) && !defined(ia64_platform_is)
415#define ia64_platform_is(foo) (!strcmp(x, platform_name))
416#endif
417
418
419#define IS_ISP1040(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020)
420#define IS_ISP1x40(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020 || \
421 ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1240)
422#define IS_ISP1x160(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP10160 || \
423 ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP12160)
424
425
426static int qla1280_probe_one(struct pci_dev *, const struct pci_device_id *);
427static void qla1280_remove_one(struct pci_dev *);
428
429/*
430 * QLogic Driver Support Function Prototypes.
431 */
432static void qla1280_done(struct scsi_qla_host *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433static int qla1280_get_token(char *);
434static int qla1280_setup(char *s) __init;
435
436/*
437 * QLogic ISP1280 Hardware Support Function Prototypes.
438 */
439static int qla1280_load_firmware(struct scsi_qla_host *);
440static int qla1280_init_rings(struct scsi_qla_host *);
441static int qla1280_nvram_config(struct scsi_qla_host *);
442static int qla1280_mailbox_command(struct scsi_qla_host *,
443 uint8_t, uint16_t *);
444static int qla1280_bus_reset(struct scsi_qla_host *, int);
445static int qla1280_device_reset(struct scsi_qla_host *, int, int);
446static int qla1280_abort_device(struct scsi_qla_host *, int, int, int);
447static int qla1280_abort_command(struct scsi_qla_host *, struct srb *, int);
448static int qla1280_abort_isp(struct scsi_qla_host *);
449#ifdef QLA_64BIT_PTR
450static int qla1280_64bit_start_scsi(struct scsi_qla_host *, struct srb *);
451#else
452static int qla1280_32bit_start_scsi(struct scsi_qla_host *, struct srb *);
453#endif
454static void qla1280_nv_write(struct scsi_qla_host *, uint16_t);
455static void qla1280_poll(struct scsi_qla_host *);
456static void qla1280_reset_adapter(struct scsi_qla_host *);
457static void qla1280_marker(struct scsi_qla_host *, int, int, int, u8);
458static void qla1280_isp_cmd(struct scsi_qla_host *);
459static void qla1280_isr(struct scsi_qla_host *, struct list_head *);
460static void qla1280_rst_aen(struct scsi_qla_host *);
461static void qla1280_status_entry(struct scsi_qla_host *, struct response *,
462 struct list_head *);
463static void qla1280_error_entry(struct scsi_qla_host *, struct response *,
464 struct list_head *);
465static uint16_t qla1280_get_nvram_word(struct scsi_qla_host *, uint32_t);
466static uint16_t qla1280_nvram_request(struct scsi_qla_host *, uint32_t);
467static uint16_t qla1280_debounce_register(volatile uint16_t __iomem *);
468static request_t *qla1280_req_pkt(struct scsi_qla_host *);
469static int qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *,
470 unsigned int);
471static void qla1280_get_target_parameters(struct scsi_qla_host *,
472 struct scsi_device *);
473static int qla1280_set_target_parameters(struct scsi_qla_host *, int, int);
474
475
476static struct qla_driver_setup driver_setup;
477
478/*
479 * convert scsi data direction to request_t control flags
480 */
481static inline uint16_t
482qla1280_data_direction(struct scsi_cmnd *cmnd)
483{
484 switch(cmnd->sc_data_direction) {
485 case DMA_FROM_DEVICE:
486 return BIT_5;
487 case DMA_TO_DEVICE:
488 return BIT_6;
489 case DMA_BIDIRECTIONAL:
490 return BIT_5 | BIT_6;
491 /*
492 * We could BUG() on default here if one of the four cases aren't
493 * met, but then again if we receive something like that from the
494 * SCSI layer we have more serious problems. This shuts up GCC.
495 */
496 case DMA_NONE:
497 default:
498 return 0;
499 }
500}
501
502#if DEBUG_QLA1280
503static void __qla1280_print_scsi_cmd(struct scsi_cmnd * cmd);
504static void __qla1280_dump_buffer(char *, int);
505#endif
506
507
508/*
509 * insmod needs to find the variable and make it point to something
510 */
511#ifdef MODULE
512static char *qla1280;
513
514/* insmod qla1280 options=verbose" */
515module_param(qla1280, charp, 0);
516#else
517__setup("qla1280=", qla1280_setup);
518#endif
519
520
521/*
522 * We use the scsi_pointer structure that's included with each scsi_command
523 * to overlay our struct srb over it. qla1280_init() checks that a srb is not
524 * bigger than a scsi_pointer.
525 */
526
527#define CMD_SP(Cmnd) &Cmnd->SCp
528#define CMD_CDBLEN(Cmnd) Cmnd->cmd_len
529#define CMD_CDBP(Cmnd) Cmnd->cmnd
530#define CMD_SNSP(Cmnd) Cmnd->sense_buffer
531#define CMD_SNSLEN(Cmnd) sizeof(Cmnd->sense_buffer)
532#define CMD_RESULT(Cmnd) Cmnd->result
533#define CMD_HANDLE(Cmnd) Cmnd->host_scribble
Linus Torvalds1da177e2005-04-16 15:20:36 -0700534#define CMD_REQUEST(Cmnd) Cmnd->request->cmd
Linus Torvalds1da177e2005-04-16 15:20:36 -0700535
536#define CMD_HOST(Cmnd) Cmnd->device->host
537#define SCSI_BUS_32(Cmnd) Cmnd->device->channel
538#define SCSI_TCN_32(Cmnd) Cmnd->device->id
539#define SCSI_LUN_32(Cmnd) Cmnd->device->lun
540
541
542/*****************************************/
543/* ISP Boards supported by this driver */
544/*****************************************/
545
546struct qla_boards {
547 unsigned char name[9]; /* Board ID String */
548 int numPorts; /* Number of SCSI ports */
549 unsigned short *fwcode; /* pointer to FW array */
550 unsigned short *fwlen; /* number of words in array */
551 unsigned short *fwstart; /* start address for F/W */
552 unsigned char *fwver; /* Ptr to F/W version array */
553};
554
555/* NOTE: the last argument in each entry is used to index ql1280_board_tbl */
556static struct pci_device_id qla1280_pci_tbl[] = {
557 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP12160,
558 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700559 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1020,
560 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700561 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1080,
562 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
563 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1240,
564 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
565 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1280,
566 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
567 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP10160,
568 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
569 {0,}
570};
571MODULE_DEVICE_TABLE(pci, qla1280_pci_tbl);
572
573static struct qla_boards ql1280_board_tbl[] = {
574 /* Name , Number of ports, FW details */
575 {"QLA12160", 2, &fw12160i_code01[0], &fw12160i_length01,
576 &fw12160i_addr01, &fw12160i_version_str[0]},
577 {"QLA1040", 1, &risc_code01[0], &risc_code_length01,
578 &risc_code_addr01, &firmware_version[0]},
579 {"QLA1080", 1, &fw1280ei_code01[0], &fw1280ei_length01,
580 &fw1280ei_addr01, &fw1280ei_version_str[0]},
581 {"QLA1240", 2, &fw1280ei_code01[0], &fw1280ei_length01,
582 &fw1280ei_addr01, &fw1280ei_version_str[0]},
583 {"QLA1280", 2, &fw1280ei_code01[0], &fw1280ei_length01,
584 &fw1280ei_addr01, &fw1280ei_version_str[0]},
585 {"QLA10160", 1, &fw12160i_code01[0], &fw12160i_length01,
586 &fw12160i_addr01, &fw12160i_version_str[0]},
587 {" ", 0}
588};
589
590static int qla1280_verbose = 1;
591
592#if DEBUG_QLA1280
593static int ql_debug_level = 1;
594#define dprintk(level, format, a...) \
595 do { if (ql_debug_level >= level) printk(KERN_ERR format, ##a); } while(0)
596#define qla1280_dump_buffer(level, buf, size) \
597 if (ql_debug_level >= level) __qla1280_dump_buffer(buf, size)
598#define qla1280_print_scsi_cmd(level, cmd) \
599 if (ql_debug_level >= level) __qla1280_print_scsi_cmd(cmd)
600#else
601#define ql_debug_level 0
602#define dprintk(level, format, a...) do{}while(0)
603#define qla1280_dump_buffer(a, b, c) do{}while(0)
604#define qla1280_print_scsi_cmd(a, b) do{}while(0)
605#endif
606
607#define ENTER(x) dprintk(3, "qla1280 : Entering %s()\n", x);
608#define LEAVE(x) dprintk(3, "qla1280 : Leaving %s()\n", x);
609#define ENTER_INTR(x) dprintk(4, "qla1280 : Entering %s()\n", x);
610#define LEAVE_INTR(x) dprintk(4, "qla1280 : Leaving %s()\n", x);
611
612
613static int qla1280_read_nvram(struct scsi_qla_host *ha)
614{
615 uint16_t *wptr;
616 uint8_t chksum;
617 int cnt, i;
618 struct nvram *nv;
619
620 ENTER("qla1280_read_nvram");
621
622 if (driver_setup.no_nvram)
623 return 1;
624
625 printk(KERN_INFO "scsi(%ld): Reading NVRAM\n", ha->host_no);
626
627 wptr = (uint16_t *)&ha->nvram;
628 nv = &ha->nvram;
629 chksum = 0;
630 for (cnt = 0; cnt < 3; cnt++) {
631 *wptr = qla1280_get_nvram_word(ha, cnt);
632 chksum += *wptr & 0xff;
633 chksum += (*wptr >> 8) & 0xff;
634 wptr++;
635 }
636
637 if (nv->id0 != 'I' || nv->id1 != 'S' ||
638 nv->id2 != 'P' || nv->id3 != ' ' || nv->version < 1) {
639 dprintk(2, "Invalid nvram ID or version!\n");
640 chksum = 1;
641 } else {
642 for (; cnt < sizeof(struct nvram); cnt++) {
643 *wptr = qla1280_get_nvram_word(ha, cnt);
644 chksum += *wptr & 0xff;
645 chksum += (*wptr >> 8) & 0xff;
646 wptr++;
647 }
648 }
649
650 dprintk(3, "qla1280_read_nvram: NVRAM Magic ID= %c %c %c %02x"
651 " version %i\n", nv->id0, nv->id1, nv->id2, nv->id3,
652 nv->version);
653
654
655 if (chksum) {
656 if (!driver_setup.no_nvram)
657 printk(KERN_WARNING "scsi(%ld): Unable to identify or "
658 "validate NVRAM checksum, using default "
659 "settings\n", ha->host_no);
660 ha->nvram_valid = 0;
661 } else
662 ha->nvram_valid = 1;
663
664 /* The firmware interface is, um, interesting, in that the
665 * actual firmware image on the chip is little endian, thus,
666 * the process of taking that image to the CPU would end up
667 * little endian. However, the firmare interface requires it
668 * to be read a word (two bytes) at a time.
669 *
670 * The net result of this would be that the word (and
671 * doubleword) quantites in the firmware would be correct, but
672 * the bytes would be pairwise reversed. Since most of the
673 * firmware quantites are, in fact, bytes, we do an extra
674 * le16_to_cpu() in the firmware read routine.
675 *
676 * The upshot of all this is that the bytes in the firmware
677 * are in the correct places, but the 16 and 32 bit quantites
678 * are still in little endian format. We fix that up below by
679 * doing extra reverses on them */
680 nv->isp_parameter = cpu_to_le16(nv->isp_parameter);
681 nv->firmware_feature.w = cpu_to_le16(nv->firmware_feature.w);
682 for(i = 0; i < MAX_BUSES; i++) {
683 nv->bus[i].selection_timeout = cpu_to_le16(nv->bus[i].selection_timeout);
684 nv->bus[i].max_queue_depth = cpu_to_le16(nv->bus[i].max_queue_depth);
685 }
686 dprintk(1, "qla1280_read_nvram: Completed Reading NVRAM\n");
687 LEAVE("qla1280_read_nvram");
688
689 return chksum;
690}
691
692/**************************************************************************
693 * qla1280_info
694 * Return a string describing the driver.
695 **************************************************************************/
696static const char *
697qla1280_info(struct Scsi_Host *host)
698{
699 static char qla1280_scsi_name_buffer[125];
700 char *bp;
701 struct scsi_qla_host *ha;
702 struct qla_boards *bdp;
703
704 bp = &qla1280_scsi_name_buffer[0];
705 ha = (struct scsi_qla_host *)host->hostdata;
706 bdp = &ql1280_board_tbl[ha->devnum];
707 memset(bp, 0, sizeof(qla1280_scsi_name_buffer));
708
709 sprintf (bp,
710 "QLogic %s PCI to SCSI Host Adapter\n"
711 " Firmware version: %2d.%02d.%02d, Driver version %s",
712 &bdp->name[0], bdp->fwver[0], bdp->fwver[1], bdp->fwver[2],
713 QLA1280_VERSION);
714 return bp;
715}
716
717/**************************************************************************
718 * qla1200_queuecommand
719 * Queue a command to the controller.
720 *
721 * Note:
722 * The mid-level driver tries to ensures that queuecommand never gets invoked
723 * concurrently with itself or the interrupt handler (although the
724 * interrupt handler may call this routine as part of request-completion
725 * handling). Unfortunely, it sometimes calls the scheduler in interrupt
726 * context which is a big NO! NO!.
727 **************************************************************************/
728static int
729qla1280_queuecommand(struct scsi_cmnd *cmd, void (*fn)(struct scsi_cmnd *))
730{
731 struct Scsi_Host *host = cmd->device->host;
732 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
733 struct srb *sp = (struct srb *)&cmd->SCp;
734 int status;
735
736 cmd->scsi_done = fn;
737 sp->cmd = cmd;
738 sp->flags = 0;
739
740 qla1280_print_scsi_cmd(5, cmd);
741
742#ifdef QLA_64BIT_PTR
743 /*
744 * Using 64 bit commands if the PCI bridge doesn't support it is a
745 * bit wasteful, however this should really only happen if one's
746 * PCI controller is completely broken, like the BCM1250. For
747 * sane hardware this is not an issue.
748 */
749 status = qla1280_64bit_start_scsi(ha, sp);
750#else
751 status = qla1280_32bit_start_scsi(ha, sp);
752#endif
753 return status;
754}
755
756enum action {
757 ABORT_COMMAND,
758 ABORT_DEVICE,
759 DEVICE_RESET,
760 BUS_RESET,
761 ADAPTER_RESET,
762 FAIL
763};
764
765/* timer action for error action processor */
766static void qla1280_error_wait_timeout(unsigned long __data)
767{
768 struct scsi_cmnd *cmd = (struct scsi_cmnd *)__data;
769 struct srb *sp = (struct srb *)CMD_SP(cmd);
770
771 complete(sp->wait);
772}
773
774static void qla1280_mailbox_timeout(unsigned long __data)
775{
776 struct scsi_qla_host *ha = (struct scsi_qla_host *)__data;
777 struct device_reg __iomem *reg;
778 reg = ha->iobase;
779
780 ha->mailbox_out[0] = RD_REG_WORD(&reg->mailbox0);
781 printk(KERN_ERR "scsi(%ld): mailbox timed out, mailbox0 %04x, "
782 "ictrl %04x, istatus %04x\n", ha->host_no, ha->mailbox_out[0],
783 RD_REG_WORD(&reg->ictrl), RD_REG_WORD(&reg->istatus));
784 complete(ha->mailbox_wait);
785}
786
787/**************************************************************************
788 * qla1200_error_action
789 * The function will attempt to perform a specified error action and
790 * wait for the results (or time out).
791 *
792 * Input:
793 * cmd = Linux SCSI command packet of the command that cause the
794 * bus reset.
795 * action = error action to take (see action_t)
796 *
797 * Returns:
798 * SUCCESS or FAILED
799 *
800 * Note:
801 * Resetting the bus always succeeds - is has to, otherwise the
802 * kernel will panic! Try a surgical technique - sending a BUS
803 * DEVICE RESET message - on the offending target before pulling
804 * the SCSI bus reset line.
805 **************************************************************************/
806static int
807qla1280_error_action(struct scsi_cmnd *cmd, enum action action)
808{
809 struct scsi_qla_host *ha;
810 int bus, target, lun;
811 struct srb *sp;
812 uint16_t data;
813 unsigned char *handle;
814 int result, i;
Peter Zijlstra6e9a4732006-09-30 23:28:10 -0700815 DECLARE_COMPLETION_ONSTACK(wait);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700816 struct timer_list timer;
817
818 ha = (struct scsi_qla_host *)(CMD_HOST(cmd)->hostdata);
819
820 dprintk(4, "error_action %i, istatus 0x%04x\n", action,
821 RD_REG_WORD(&ha->iobase->istatus));
822
823 dprintk(4, "host_cmd 0x%04x, ictrl 0x%04x, jiffies %li\n",
824 RD_REG_WORD(&ha->iobase->host_cmd),
825 RD_REG_WORD(&ha->iobase->ictrl), jiffies);
826
827 ENTER("qla1280_error_action");
828 if (qla1280_verbose)
829 printk(KERN_INFO "scsi(%li): Resetting Cmnd=0x%p, "
830 "Handle=0x%p, action=0x%x\n",
831 ha->host_no, cmd, CMD_HANDLE(cmd), action);
832
833 if (cmd == NULL) {
834 printk(KERN_WARNING "(scsi?:?:?:?) Reset called with NULL "
835 "si_Cmnd pointer, failing.\n");
836 LEAVE("qla1280_error_action");
837 return FAILED;
838 }
839
840 ha = (struct scsi_qla_host *)cmd->device->host->hostdata;
841 sp = (struct srb *)CMD_SP(cmd);
842 handle = CMD_HANDLE(cmd);
843
844 /* Check for pending interrupts. */
845 data = qla1280_debounce_register(&ha->iobase->istatus);
846 /*
847 * The io_request_lock is held when the reset handler is called, hence
848 * the interrupt handler cannot be running in parallel as it also
849 * grabs the lock. /Jes
850 */
851 if (data & RISC_INT)
852 qla1280_isr(ha, &ha->done_q);
853
854 /*
855 * Determine the suggested action that the mid-level driver wants
856 * us to perform.
857 */
858 if (handle == (unsigned char *)INVALID_HANDLE || handle == NULL) {
859 if(action == ABORT_COMMAND) {
860 /* we never got this command */
861 printk(KERN_INFO "qla1280: Aborting a NULL handle\n");
862 return SUCCESS; /* no action - we don't have command */
863 }
864 } else {
865 sp->wait = &wait;
866 }
867
868 bus = SCSI_BUS_32(cmd);
869 target = SCSI_TCN_32(cmd);
870 lun = SCSI_LUN_32(cmd);
871
872 /* Overloading result. Here it means the success or fail of the
873 * *issue* of the action. When we return from the routine, it must
874 * mean the actual success or fail of the action */
875 result = FAILED;
876 switch (action) {
877 case FAIL:
878 break;
879
880 case ABORT_COMMAND:
881 if ((sp->flags & SRB_ABORT_PENDING)) {
882 printk(KERN_WARNING
883 "scsi(): Command has a pending abort "
884 "message - ABORT_PENDING.\n");
885 /* This should technically be impossible since we
886 * now wait for abort completion */
887 break;
888 }
889
890 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
891 if (sp == ha->outstanding_cmds[i]) {
892 dprintk(1, "qla1280: RISC aborting command\n");
893 if (qla1280_abort_command(ha, sp, i) == 0)
894 result = SUCCESS;
895 else {
896 /*
897 * Since we don't know what might
898 * have happend to the command, it
899 * is unsafe to remove it from the
900 * device's queue at this point.
901 * Wait and let the escalation
902 * process take care of it.
903 */
904 printk(KERN_WARNING
905 "scsi(%li:%i:%i:%i): Unable"
906 " to abort command!\n",
907 ha->host_no, bus, target, lun);
908 }
909 }
910 }
911 break;
912
913 case ABORT_DEVICE:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914 if (qla1280_verbose)
915 printk(KERN_INFO
916 "scsi(%ld:%d:%d:%d): Queueing abort device "
917 "command.\n", ha->host_no, bus, target, lun);
918 if (qla1280_abort_device(ha, bus, target, lun) == 0)
919 result = SUCCESS;
920 break;
921
922 case DEVICE_RESET:
923 if (qla1280_verbose)
924 printk(KERN_INFO
925 "scsi(%ld:%d:%d:%d): Queueing device reset "
926 "command.\n", ha->host_no, bus, target, lun);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700927 if (qla1280_device_reset(ha, bus, target) == 0)
928 result = SUCCESS;
929 break;
930
931 case BUS_RESET:
932 if (qla1280_verbose)
Jes Sorensencd00b7f2006-10-17 09:32:06 -0400933 printk(KERN_INFO "qla1280(%ld:%d): Issued bus "
934 "reset.\n", ha->host_no, bus);
935 if (qla1280_bus_reset(ha, bus) == 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700936 result = SUCCESS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700937 break;
938
939 case ADAPTER_RESET:
940 default:
941 if (qla1280_verbose) {
942 printk(KERN_INFO
943 "scsi(%ld): Issued ADAPTER RESET\n",
944 ha->host_no);
945 printk(KERN_INFO "scsi(%ld): I/O processing will "
946 "continue automatically\n", ha->host_no);
947 }
948 ha->flags.reset_active = 1;
949 /*
950 * We restarted all of the commands automatically, so the
951 * mid-level code can expect completions momentitarily.
952 */
953 if (qla1280_abort_isp(ha) == 0)
954 result = SUCCESS;
955
956 ha->flags.reset_active = 0;
957 }
958
959 if (!list_empty(&ha->done_q))
960 qla1280_done(ha);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961
962 /* If we didn't manage to issue the action, or we have no
963 * command to wait for, exit here */
964 if (result == FAILED || handle == NULL ||
965 handle == (unsigned char *)INVALID_HANDLE) {
966 /*
967 * Clear completion queue to avoid qla1280_done() trying
968 * to complete the command at a later stage after we
969 * have exited the current context
970 */
971 sp->wait = NULL;
972 goto leave;
973 }
974
975 /* set up a timer just in case we're really jammed */
976 init_timer(&timer);
977 timer.expires = jiffies + 4*HZ;
978 timer.data = (unsigned long)cmd;
979 timer.function = qla1280_error_wait_timeout;
980 add_timer(&timer);
981
982 /* wait for the action to complete (or the timer to expire) */
Jes Sorensen2dbb04c2006-01-16 11:49:29 -0500983 spin_unlock_irq(ha->host->host_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700984 wait_for_completion(&wait);
985 del_timer_sync(&timer);
Jes Sorensen2dbb04c2006-01-16 11:49:29 -0500986 spin_lock_irq(ha->host->host_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700987 sp->wait = NULL;
988
989 /* the only action we might get a fail for is abort */
990 if (action == ABORT_COMMAND) {
991 if(sp->flags & SRB_ABORTED)
992 result = SUCCESS;
993 else
994 result = FAILED;
995 }
996
997 leave:
998 dprintk(1, "RESET returning %d\n", result);
999
1000 LEAVE("qla1280_error_action");
1001 return result;
1002}
1003
1004/**************************************************************************
1005 * qla1280_abort
1006 * Abort the specified SCSI command(s).
1007 **************************************************************************/
1008static int
1009qla1280_eh_abort(struct scsi_cmnd * cmd)
1010{
Jeff Garzik 8fa728a2005-05-28 07:54:40 -04001011 int rc;
1012
1013 spin_lock_irq(cmd->device->host->host_lock);
1014 rc = qla1280_error_action(cmd, ABORT_COMMAND);
1015 spin_unlock_irq(cmd->device->host->host_lock);
1016
1017 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001018}
1019
1020/**************************************************************************
1021 * qla1280_device_reset
1022 * Reset the specified SCSI device
1023 **************************************************************************/
1024static int
1025qla1280_eh_device_reset(struct scsi_cmnd *cmd)
1026{
Jeff Garzik 94d0e7b82005-05-28 07:55:48 -04001027 int rc;
1028
1029 spin_lock_irq(cmd->device->host->host_lock);
1030 rc = qla1280_error_action(cmd, DEVICE_RESET);
1031 spin_unlock_irq(cmd->device->host->host_lock);
1032
1033 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001034}
1035
1036/**************************************************************************
1037 * qla1280_bus_reset
1038 * Reset the specified bus.
1039 **************************************************************************/
1040static int
1041qla1280_eh_bus_reset(struct scsi_cmnd *cmd)
1042{
Jeff Garzik 68b3aa72005-05-28 07:56:31 -04001043 int rc;
1044
1045 spin_lock_irq(cmd->device->host->host_lock);
1046 rc = qla1280_error_action(cmd, BUS_RESET);
1047 spin_unlock_irq(cmd->device->host->host_lock);
1048
1049 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050}
1051
1052/**************************************************************************
1053 * qla1280_adapter_reset
1054 * Reset the specified adapter (both channels)
1055 **************************************************************************/
1056static int
1057qla1280_eh_adapter_reset(struct scsi_cmnd *cmd)
1058{
Jeff Garzik df0ae242005-05-28 07:57:14 -04001059 int rc;
1060
1061 spin_lock_irq(cmd->device->host->host_lock);
1062 rc = qla1280_error_action(cmd, ADAPTER_RESET);
1063 spin_unlock_irq(cmd->device->host->host_lock);
1064
1065 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001066}
1067
1068static int
1069qla1280_biosparam(struct scsi_device *sdev, struct block_device *bdev,
1070 sector_t capacity, int geom[])
1071{
1072 int heads, sectors, cylinders;
1073
1074 heads = 64;
1075 sectors = 32;
1076 cylinders = (unsigned long)capacity / (heads * sectors);
1077 if (cylinders > 1024) {
1078 heads = 255;
1079 sectors = 63;
1080 cylinders = (unsigned long)capacity / (heads * sectors);
1081 /* if (cylinders > 1023)
1082 cylinders = 1023; */
1083 }
1084
1085 geom[0] = heads;
1086 geom[1] = sectors;
1087 geom[2] = cylinders;
1088
1089 return 0;
1090}
1091
Christoph Hellwig 8af50dc2005-07-04 17:48:19 +02001092
1093/* disable risc and host interrupts */
1094static inline void
1095qla1280_disable_intrs(struct scsi_qla_host *ha)
1096{
1097 WRT_REG_WORD(&ha->iobase->ictrl, 0);
1098 RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */
1099}
1100
1101/* enable risc and host interrupts */
1102static inline void
1103qla1280_enable_intrs(struct scsi_qla_host *ha)
1104{
1105 WRT_REG_WORD(&ha->iobase->ictrl, (ISP_EN_INT | ISP_EN_RISC));
1106 RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */
1107}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001108
1109/**************************************************************************
1110 * qla1280_intr_handler
1111 * Handles the H/W interrupt
1112 **************************************************************************/
1113static irqreturn_t
David Howells7d12e782006-10-05 14:55:46 +01001114qla1280_intr_handler(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001115{
1116 struct scsi_qla_host *ha;
1117 struct device_reg __iomem *reg;
1118 u16 data;
1119 int handled = 0;
1120
1121 ENTER_INTR ("qla1280_intr_handler");
1122 ha = (struct scsi_qla_host *)dev_id;
1123
Jes Sorensen2dbb04c2006-01-16 11:49:29 -05001124 spin_lock(ha->host->host_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001125
1126 ha->isr_count++;
1127 reg = ha->iobase;
1128
Christoph Hellwig 8af50dc2005-07-04 17:48:19 +02001129 qla1280_disable_intrs(ha);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001130
1131 data = qla1280_debounce_register(&reg->istatus);
1132 /* Check for pending interrupts. */
1133 if (data & RISC_INT) {
1134 qla1280_isr(ha, &ha->done_q);
1135 handled = 1;
1136 }
1137 if (!list_empty(&ha->done_q))
1138 qla1280_done(ha);
1139
Jes Sorensen2dbb04c2006-01-16 11:49:29 -05001140 spin_unlock(ha->host->host_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001141
Christoph Hellwig 8af50dc2005-07-04 17:48:19 +02001142 qla1280_enable_intrs(ha);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001143
1144 LEAVE_INTR("qla1280_intr_handler");
1145 return IRQ_RETVAL(handled);
1146}
1147
1148
1149static int
1150qla1280_set_target_parameters(struct scsi_qla_host *ha, int bus, int target)
1151{
1152 uint8_t mr;
1153 uint16_t mb[MAILBOX_REGISTER_COUNT];
1154 struct nvram *nv;
Christoph Hellwig 7a347662005-07-04 17:49:22 +02001155 int status, lun;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001156
1157 nv = &ha->nvram;
1158
1159 mr = BIT_3 | BIT_2 | BIT_1 | BIT_0;
1160
1161 /* Set Target Parameters. */
1162 mb[0] = MBC_SET_TARGET_PARAMETERS;
Christoph Hellwig 7a347662005-07-04 17:49:22 +02001163 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
1164 mb[2] = nv->bus[bus].target[target].parameter.renegotiate_on_error << 8;
1165 mb[2] |= nv->bus[bus].target[target].parameter.stop_queue_on_check << 9;
1166 mb[2] |= nv->bus[bus].target[target].parameter.auto_request_sense << 10;
1167 mb[2] |= nv->bus[bus].target[target].parameter.tag_queuing << 11;
1168 mb[2] |= nv->bus[bus].target[target].parameter.enable_sync << 12;
1169 mb[2] |= nv->bus[bus].target[target].parameter.enable_wide << 13;
1170 mb[2] |= nv->bus[bus].target[target].parameter.parity_checking << 14;
1171 mb[2] |= nv->bus[bus].target[target].parameter.disconnect_allowed << 15;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001172
1173 if (IS_ISP1x160(ha)) {
1174 mb[2] |= nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr << 5;
Christoph Hellwig 7a347662005-07-04 17:49:22 +02001175 mb[3] = (nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001176 mb[6] = (nv->bus[bus].target[target].ppr_1x160.flags.ppr_options << 8) |
1177 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width;
1178 mr |= BIT_6;
1179 } else {
Christoph Hellwig 7a347662005-07-04 17:49:22 +02001180 mb[3] = (nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001181 }
Christoph Hellwig 7a347662005-07-04 17:49:22 +02001182 mb[3] |= nv->bus[bus].target[target].sync_period;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001183
Christoph Hellwig 7a347662005-07-04 17:49:22 +02001184 status = qla1280_mailbox_command(ha, mr, mb);
1185
1186 /* Set Device Queue Parameters. */
1187 for (lun = 0; lun < MAX_LUNS; lun++) {
1188 mb[0] = MBC_SET_DEVICE_QUEUE;
1189 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
1190 mb[1] |= lun;
1191 mb[2] = nv->bus[bus].max_queue_depth;
1192 mb[3] = nv->bus[bus].target[target].execution_throttle;
1193 status |= qla1280_mailbox_command(ha, 0x0f, mb);
1194 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001195
1196 if (status)
1197 printk(KERN_WARNING "scsi(%ld:%i:%i): "
1198 "qla1280_set_target_parameters() failed\n",
1199 ha->host_no, bus, target);
1200 return status;
1201}
1202
1203
1204/**************************************************************************
1205 * qla1280_slave_configure
1206 *
1207 * Description:
1208 * Determines the queue depth for a given device. There are two ways
1209 * a queue depth can be obtained for a tagged queueing device. One
1210 * way is the default queue depth which is determined by whether
1211 * If it is defined, then it is used
1212 * as the default queue depth. Otherwise, we use either 4 or 8 as the
1213 * default queue depth (dependent on the number of hardware SCBs).
1214 **************************************************************************/
1215static int
1216qla1280_slave_configure(struct scsi_device *device)
1217{
1218 struct scsi_qla_host *ha;
1219 int default_depth = 3;
1220 int bus = device->channel;
1221 int target = device->id;
1222 int status = 0;
1223 struct nvram *nv;
1224 unsigned long flags;
1225
1226 ha = (struct scsi_qla_host *)device->host->hostdata;
1227 nv = &ha->nvram;
1228
1229 if (qla1280_check_for_dead_scsi_bus(ha, bus))
1230 return 1;
1231
1232 if (device->tagged_supported &&
1233 (ha->bus_settings[bus].qtag_enables & (BIT_0 << target))) {
1234 scsi_adjust_queue_depth(device, MSG_ORDERED_TAG,
1235 ha->bus_settings[bus].hiwat);
1236 } else {
1237 scsi_adjust_queue_depth(device, 0, default_depth);
1238 }
1239
Christoph Hellwig 7a347662005-07-04 17:49:22 +02001240 nv->bus[bus].target[target].parameter.enable_sync = device->sdtr;
1241 nv->bus[bus].target[target].parameter.enable_wide = device->wdtr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001242 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = device->ppr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001243
1244 if (driver_setup.no_sync ||
1245 (driver_setup.sync_mask &&
1246 (~driver_setup.sync_mask & (1 << target))))
Christoph Hellwig 7a347662005-07-04 17:49:22 +02001247 nv->bus[bus].target[target].parameter.enable_sync = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001248 if (driver_setup.no_wide ||
1249 (driver_setup.wide_mask &&
1250 (~driver_setup.wide_mask & (1 << target))))
Christoph Hellwig 7a347662005-07-04 17:49:22 +02001251 nv->bus[bus].target[target].parameter.enable_wide = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001252 if (IS_ISP1x160(ha)) {
1253 if (driver_setup.no_ppr ||
1254 (driver_setup.ppr_mask &&
1255 (~driver_setup.ppr_mask & (1 << target))))
1256 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 0;
1257 }
1258
Jes Sorensen2dbb04c2006-01-16 11:49:29 -05001259 spin_lock_irqsave(ha->host->host_lock, flags);
Christoph Hellwig 7a347662005-07-04 17:49:22 +02001260 if (nv->bus[bus].target[target].parameter.enable_sync)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001261 status = qla1280_set_target_parameters(ha, bus, target);
1262 qla1280_get_target_parameters(ha, device);
Jes Sorensen2dbb04c2006-01-16 11:49:29 -05001263 spin_unlock_irqrestore(ha->host->host_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001264 return status;
1265}
1266
Linus Torvalds1da177e2005-04-16 15:20:36 -07001267
1268/*
1269 * qla1280_done
1270 * Process completed commands.
1271 *
1272 * Input:
1273 * ha = adapter block pointer.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001274 */
1275static void
1276qla1280_done(struct scsi_qla_host *ha)
1277{
1278 struct srb *sp;
1279 struct list_head *done_q;
1280 int bus, target, lun;
1281 struct scsi_cmnd *cmd;
1282
1283 ENTER("qla1280_done");
1284
1285 done_q = &ha->done_q;
1286
1287 while (!list_empty(done_q)) {
1288 sp = list_entry(done_q->next, struct srb, list);
1289
1290 list_del(&sp->list);
1291
1292 cmd = sp->cmd;
1293 bus = SCSI_BUS_32(cmd);
1294 target = SCSI_TCN_32(cmd);
1295 lun = SCSI_LUN_32(cmd);
1296
1297 switch ((CMD_RESULT(cmd) >> 16)) {
1298 case DID_RESET:
1299 /* Issue marker command. */
1300 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
1301 break;
1302 case DID_ABORT:
1303 sp->flags &= ~SRB_ABORT_PENDING;
1304 sp->flags |= SRB_ABORTED;
1305 if (sp->flags & SRB_TIMEOUT)
1306 CMD_RESULT(sp->cmd) = DID_TIME_OUT << 16;
1307 break;
1308 default:
1309 break;
1310 }
1311
1312 /* Release memory used for this I/O */
1313 if (cmd->use_sg) {
1314 pci_unmap_sg(ha->pdev, cmd->request_buffer,
1315 cmd->use_sg, cmd->sc_data_direction);
1316 } else if (cmd->request_bufflen) {
1317 pci_unmap_single(ha->pdev, sp->saved_dma_handle,
1318 cmd->request_bufflen,
1319 cmd->sc_data_direction);
1320 }
1321
1322 /* Call the mid-level driver interrupt handler */
1323 CMD_HANDLE(sp->cmd) = (unsigned char *)INVALID_HANDLE;
1324 ha->actthreads--;
1325
Linus Torvalds1da177e2005-04-16 15:20:36 -07001326 (*(cmd)->scsi_done)(cmd);
1327
1328 if(sp->wait != NULL)
1329 complete(sp->wait);
1330 }
1331 LEAVE("qla1280_done");
1332}
1333
1334/*
1335 * Translates a ISP error to a Linux SCSI error
1336 */
1337static int
1338qla1280_return_status(struct response * sts, struct scsi_cmnd *cp)
1339{
1340 int host_status = DID_ERROR;
1341 uint16_t comp_status = le16_to_cpu(sts->comp_status);
1342 uint16_t state_flags = le16_to_cpu(sts->state_flags);
Jes Sorensen3ef49a32007-01-05 12:05:37 -05001343 uint32_t residual_length = le32_to_cpu(sts->residual_length);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001344 uint16_t scsi_status = le16_to_cpu(sts->scsi_status);
1345#if DEBUG_QLA1280_INTR
1346 static char *reason[] = {
1347 "DID_OK",
1348 "DID_NO_CONNECT",
1349 "DID_BUS_BUSY",
1350 "DID_TIME_OUT",
1351 "DID_BAD_TARGET",
1352 "DID_ABORT",
1353 "DID_PARITY",
1354 "DID_ERROR",
1355 "DID_RESET",
1356 "DID_BAD_INTR"
1357 };
1358#endif /* DEBUG_QLA1280_INTR */
1359
1360 ENTER("qla1280_return_status");
1361
1362#if DEBUG_QLA1280_INTR
1363 /*
1364 dprintk(1, "qla1280_return_status: compl status = 0x%04x\n",
1365 comp_status);
1366 */
1367#endif
1368
1369 switch (comp_status) {
1370 case CS_COMPLETE:
1371 host_status = DID_OK;
1372 break;
1373
1374 case CS_INCOMPLETE:
1375 if (!(state_flags & SF_GOT_BUS))
1376 host_status = DID_NO_CONNECT;
1377 else if (!(state_flags & SF_GOT_TARGET))
1378 host_status = DID_BAD_TARGET;
1379 else if (!(state_flags & SF_SENT_CDB))
1380 host_status = DID_ERROR;
1381 else if (!(state_flags & SF_TRANSFERRED_DATA))
1382 host_status = DID_ERROR;
1383 else if (!(state_flags & SF_GOT_STATUS))
1384 host_status = DID_ERROR;
1385 else if (!(state_flags & SF_GOT_SENSE))
1386 host_status = DID_ERROR;
1387 break;
1388
1389 case CS_RESET:
1390 host_status = DID_RESET;
1391 break;
1392
1393 case CS_ABORTED:
1394 host_status = DID_ABORT;
1395 break;
1396
1397 case CS_TIMEOUT:
1398 host_status = DID_TIME_OUT;
1399 break;
1400
1401 case CS_DATA_OVERRUN:
1402 dprintk(2, "Data overrun 0x%x\n", residual_length);
Christoph Hellwig 2b55cac2005-07-04 17:48:30 +02001403 dprintk(2, "qla1280_return_status: response packet data\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001404 qla1280_dump_buffer(2, (char *)sts, RESPONSE_ENTRY_SIZE);
1405 host_status = DID_ERROR;
1406 break;
1407
1408 case CS_DATA_UNDERRUN:
1409 if ((cp->request_bufflen - residual_length) <
1410 cp->underflow) {
1411 printk(KERN_WARNING
1412 "scsi: Underflow detected - retrying "
1413 "command.\n");
1414 host_status = DID_ERROR;
Jes Sorensen3ef49a32007-01-05 12:05:37 -05001415 } else {
1416 cp->resid = residual_length;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001417 host_status = DID_OK;
Jes Sorensen3ef49a32007-01-05 12:05:37 -05001418 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001419 break;
1420
1421 default:
1422 host_status = DID_ERROR;
1423 break;
1424 }
1425
1426#if DEBUG_QLA1280_INTR
1427 dprintk(1, "qla1280 ISP status: host status (%s) scsi status %x\n",
1428 reason[host_status], scsi_status);
1429#endif
1430
1431 LEAVE("qla1280_return_status");
1432
1433 return (scsi_status & 0xff) | (host_status << 16);
1434}
1435
1436/****************************************************************************/
1437/* QLogic ISP1280 Hardware Support Functions. */
1438/****************************************************************************/
1439
Linus Torvalds1da177e2005-04-16 15:20:36 -07001440/*
1441 * qla1280_initialize_adapter
1442 * Initialize board.
1443 *
1444 * Input:
1445 * ha = adapter block pointer.
1446 *
1447 * Returns:
1448 * 0 = success
1449 */
1450static int __devinit
1451qla1280_initialize_adapter(struct scsi_qla_host *ha)
1452{
1453 struct device_reg __iomem *reg;
1454 int status;
1455 int bus;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001456 unsigned long flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001457
1458 ENTER("qla1280_initialize_adapter");
1459
1460 /* Clear adapter flags. */
1461 ha->flags.online = 0;
1462 ha->flags.disable_host_adapter = 0;
1463 ha->flags.reset_active = 0;
1464 ha->flags.abort_isp_active = 0;
1465
Linus Torvalds1da177e2005-04-16 15:20:36 -07001466#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
1467 if (ia64_platform_is("sn2")) {
1468 printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA "
1469 "dual channel lockup workaround\n", ha->host_no);
1470 ha->flags.use_pci_vchannel = 1;
1471 driver_setup.no_nvram = 1;
1472 }
1473#endif
1474
1475 /* TODO: implement support for the 1040 nvram format */
1476 if (IS_ISP1040(ha))
1477 driver_setup.no_nvram = 1;
1478
1479 dprintk(1, "Configure PCI space for adapter...\n");
1480
1481 reg = ha->iobase;
1482
1483 /* Insure mailbox registers are free. */
1484 WRT_REG_WORD(&reg->semaphore, 0);
1485 WRT_REG_WORD(&reg->host_cmd, HC_CLR_RISC_INT);
1486 WRT_REG_WORD(&reg->host_cmd, HC_CLR_HOST_INT);
1487 RD_REG_WORD(&reg->host_cmd);
1488
1489 if (qla1280_read_nvram(ha)) {
1490 dprintk(2, "qla1280_initialize_adapter: failed to read "
1491 "NVRAM\n");
1492 }
1493
Linus Torvalds1da177e2005-04-16 15:20:36 -07001494 /*
1495 * It's necessary to grab the spin here as qla1280_mailbox_command
1496 * needs to be able to drop the lock unconditionally to wait
1497 * for completion.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001498 */
Jes Sorensen2dbb04c2006-01-16 11:49:29 -05001499 spin_lock_irqsave(ha->host->host_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001500
1501 status = qla1280_load_firmware(ha);
1502 if (status) {
1503 printk(KERN_ERR "scsi(%li): initialize: pci probe failed!\n",
1504 ha->host_no);
1505 goto out;
1506 }
1507
1508 /* Setup adapter based on NVRAM parameters. */
1509 dprintk(1, "scsi(%ld): Configure NVRAM parameters\n", ha->host_no);
1510 qla1280_nvram_config(ha);
1511
1512 if (ha->flags.disable_host_adapter) {
1513 status = 1;
1514 goto out;
1515 }
1516
1517 status = qla1280_init_rings(ha);
1518 if (status)
1519 goto out;
1520
1521 /* Issue SCSI reset, if we can't reset twice then bus is dead */
1522 for (bus = 0; bus < ha->ports; bus++) {
1523 if (!ha->bus_settings[bus].disable_scsi_reset &&
1524 qla1280_bus_reset(ha, bus) &&
1525 qla1280_bus_reset(ha, bus))
1526 ha->bus_settings[bus].scsi_bus_dead = 1;
1527 }
1528
1529 ha->flags.online = 1;
1530 out:
Jes Sorensen2dbb04c2006-01-16 11:49:29 -05001531 spin_unlock_irqrestore(ha->host->host_lock, flags);
1532
Linus Torvalds1da177e2005-04-16 15:20:36 -07001533 if (status)
1534 dprintk(2, "qla1280_initialize_adapter: **** FAILED ****\n");
1535
1536 LEAVE("qla1280_initialize_adapter");
1537 return status;
1538}
1539
Linus Torvalds1da177e2005-04-16 15:20:36 -07001540/*
1541 * Chip diagnostics
1542 * Test chip for proper operation.
1543 *
1544 * Input:
1545 * ha = adapter block pointer.
1546 *
1547 * Returns:
1548 * 0 = success.
1549 */
1550static int
1551qla1280_chip_diag(struct scsi_qla_host *ha)
1552{
1553 uint16_t mb[MAILBOX_REGISTER_COUNT];
1554 struct device_reg __iomem *reg = ha->iobase;
1555 int status = 0;
1556 int cnt;
1557 uint16_t data;
1558 dprintk(3, "qla1280_chip_diag: testing device at 0x%p \n", &reg->id_l);
1559
1560 dprintk(1, "scsi(%ld): Verifying chip\n", ha->host_no);
1561
1562 /* Soft reset chip and wait for it to finish. */
1563 WRT_REG_WORD(&reg->ictrl, ISP_RESET);
1564
1565 /*
1566 * We can't do a traditional PCI write flush here by reading
1567 * back the register. The card will not respond once the reset
1568 * is in action and we end up with a machine check exception
1569 * instead. Nothing to do but wait and hope for the best.
1570 * A portable pci_write_flush(pdev) call would be very useful here.
1571 */
1572 udelay(20);
1573 data = qla1280_debounce_register(&reg->ictrl);
1574 /*
1575 * Yet another QLogic gem ;-(
1576 */
1577 for (cnt = 1000000; cnt && data & ISP_RESET; cnt--) {
1578 udelay(5);
1579 data = RD_REG_WORD(&reg->ictrl);
1580 }
1581
1582 if (!cnt)
1583 goto fail;
1584
1585 /* Reset register cleared by chip reset. */
1586 dprintk(3, "qla1280_chip_diag: reset register cleared by chip reset\n");
1587
1588 WRT_REG_WORD(&reg->cfg_1, 0);
1589
1590 /* Reset RISC and disable BIOS which
1591 allows RISC to execute out of RAM. */
1592 WRT_REG_WORD(&reg->host_cmd, HC_RESET_RISC |
1593 HC_RELEASE_RISC | HC_DISABLE_BIOS);
1594
1595 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
1596 data = qla1280_debounce_register(&reg->mailbox0);
1597
1598 /*
1599 * I *LOVE* this code!
1600 */
1601 for (cnt = 1000000; cnt && data == MBS_BUSY; cnt--) {
1602 udelay(5);
1603 data = RD_REG_WORD(&reg->mailbox0);
1604 }
1605
1606 if (!cnt)
1607 goto fail;
1608
1609 /* Check product ID of chip */
1610 dprintk(3, "qla1280_chip_diag: Checking product ID of chip\n");
1611
1612 if (RD_REG_WORD(&reg->mailbox1) != PROD_ID_1 ||
1613 (RD_REG_WORD(&reg->mailbox2) != PROD_ID_2 &&
1614 RD_REG_WORD(&reg->mailbox2) != PROD_ID_2a) ||
1615 RD_REG_WORD(&reg->mailbox3) != PROD_ID_3 ||
1616 RD_REG_WORD(&reg->mailbox4) != PROD_ID_4) {
1617 printk(KERN_INFO "qla1280: Wrong product ID = "
1618 "0x%x,0x%x,0x%x,0x%x\n",
1619 RD_REG_WORD(&reg->mailbox1),
1620 RD_REG_WORD(&reg->mailbox2),
1621 RD_REG_WORD(&reg->mailbox3),
1622 RD_REG_WORD(&reg->mailbox4));
1623 goto fail;
1624 }
1625
1626 /*
1627 * Enable ints early!!!
1628 */
1629 qla1280_enable_intrs(ha);
1630
1631 dprintk(1, "qla1280_chip_diag: Checking mailboxes of chip\n");
1632 /* Wrap Incoming Mailboxes Test. */
1633 mb[0] = MBC_MAILBOX_REGISTER_TEST;
1634 mb[1] = 0xAAAA;
1635 mb[2] = 0x5555;
1636 mb[3] = 0xAA55;
1637 mb[4] = 0x55AA;
1638 mb[5] = 0xA5A5;
1639 mb[6] = 0x5A5A;
1640 mb[7] = 0x2525;
1641
1642 status = qla1280_mailbox_command(ha, 0xff, mb);
1643 if (status)
1644 goto fail;
1645
1646 if (mb[1] != 0xAAAA || mb[2] != 0x5555 || mb[3] != 0xAA55 ||
1647 mb[4] != 0x55AA || mb[5] != 0xA5A5 || mb[6] != 0x5A5A ||
1648 mb[7] != 0x2525) {
1649 printk(KERN_INFO "qla1280: Failed mbox check\n");
1650 goto fail;
1651 }
1652
1653 dprintk(3, "qla1280_chip_diag: exiting normally\n");
1654 return 0;
1655 fail:
1656 dprintk(2, "qla1280_chip_diag: **** FAILED ****\n");
1657 return status;
1658}
1659
1660static int
1661qla1280_load_firmware_pio(struct scsi_qla_host *ha)
1662{
1663 uint16_t risc_address, *risc_code_address, risc_code_size;
1664 uint16_t mb[MAILBOX_REGISTER_COUNT], i;
1665 int err;
1666
1667 /* Load RISC code. */
1668 risc_address = *ql1280_board_tbl[ha->devnum].fwstart;
1669 risc_code_address = ql1280_board_tbl[ha->devnum].fwcode;
1670 risc_code_size = *ql1280_board_tbl[ha->devnum].fwlen;
1671
1672 for (i = 0; i < risc_code_size; i++) {
1673 mb[0] = MBC_WRITE_RAM_WORD;
1674 mb[1] = risc_address + i;
1675 mb[2] = risc_code_address[i];
1676
1677 err = qla1280_mailbox_command(ha, BIT_0 | BIT_1 | BIT_2, mb);
1678 if (err) {
1679 printk(KERN_ERR "scsi(%li): Failed to load firmware\n",
1680 ha->host_no);
1681 return err;
1682 }
1683 }
1684
1685 return 0;
1686}
1687
1688#define DUMP_IT_BACK 0 /* for debug of RISC loading */
1689static int
1690qla1280_load_firmware_dma(struct scsi_qla_host *ha)
1691{
1692 uint16_t risc_address, *risc_code_address, risc_code_size;
1693 uint16_t mb[MAILBOX_REGISTER_COUNT], cnt;
1694 int err = 0, num, i;
1695#if DUMP_IT_BACK
1696 uint8_t *sp, *tbuf;
1697 dma_addr_t p_tbuf;
1698
1699 tbuf = pci_alloc_consistent(ha->pdev, 8000, &p_tbuf);
1700 if (!tbuf)
1701 return -ENOMEM;
1702#endif
1703
1704 /* Load RISC code. */
1705 risc_address = *ql1280_board_tbl[ha->devnum].fwstart;
1706 risc_code_address = ql1280_board_tbl[ha->devnum].fwcode;
1707 risc_code_size = *ql1280_board_tbl[ha->devnum].fwlen;
1708
1709 dprintk(1, "%s: DMA RISC code (%i) words\n",
1710 __FUNCTION__, risc_code_size);
1711
1712 num = 0;
1713 while (risc_code_size > 0) {
1714 int warn __attribute__((unused)) = 0;
1715
1716 cnt = 2000 >> 1;
1717
1718 if (cnt > risc_code_size)
1719 cnt = risc_code_size;
1720
1721 dprintk(2, "qla1280_setup_chip: loading risc @ =(0x%p),"
1722 "%d,%d(0x%x)\n",
1723 risc_code_address, cnt, num, risc_address);
1724 for(i = 0; i < cnt; i++)
Christoph Hellwig 8d6810d2005-07-04 17:49:26 +02001725 ((__le16 *)ha->request_ring)[i] =
Linus Torvalds1da177e2005-04-16 15:20:36 -07001726 cpu_to_le16(risc_code_address[i]);
1727
1728 mb[0] = MBC_LOAD_RAM;
1729 mb[1] = risc_address;
1730 mb[4] = cnt;
1731 mb[3] = ha->request_dma & 0xffff;
1732 mb[2] = (ha->request_dma >> 16) & 0xffff;
1733 mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff;
1734 mb[6] = pci_dma_hi32(ha->request_dma) >> 16;
1735 dprintk(2, "%s: op=%d 0x%p = 0x%4x,0x%4x,0x%4x,0x%4x\n",
1736 __FUNCTION__, mb[0],
1737 (void *)(long)ha->request_dma,
1738 mb[6], mb[7], mb[2], mb[3]);
1739 err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 |
1740 BIT_1 | BIT_0, mb);
1741 if (err) {
1742 printk(KERN_ERR "scsi(%li): Failed to load partial "
1743 "segment of f\n", ha->host_no);
1744 goto out;
1745 }
1746
1747#if DUMP_IT_BACK
1748 mb[0] = MBC_DUMP_RAM;
1749 mb[1] = risc_address;
1750 mb[4] = cnt;
1751 mb[3] = p_tbuf & 0xffff;
1752 mb[2] = (p_tbuf >> 16) & 0xffff;
1753 mb[7] = pci_dma_hi32(p_tbuf) & 0xffff;
1754 mb[6] = pci_dma_hi32(p_tbuf) >> 16;
1755
1756 err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 |
1757 BIT_1 | BIT_0, mb);
1758 if (err) {
1759 printk(KERN_ERR
1760 "Failed to dump partial segment of f/w\n");
1761 goto out;
1762 }
1763 sp = (uint8_t *)ha->request_ring;
1764 for (i = 0; i < (cnt << 1); i++) {
1765 if (tbuf[i] != sp[i] && warn++ < 10) {
1766 printk(KERN_ERR "%s: FW compare error @ "
1767 "byte(0x%x) loop#=%x\n",
1768 __FUNCTION__, i, num);
1769 printk(KERN_ERR "%s: FWbyte=%x "
1770 "FWfromChip=%x\n",
1771 __FUNCTION__, sp[i], tbuf[i]);
1772 /*break; */
1773 }
1774 }
1775#endif
1776 risc_address += cnt;
1777 risc_code_size = risc_code_size - cnt;
1778 risc_code_address = risc_code_address + cnt;
1779 num++;
1780 }
1781
1782 out:
1783#if DUMP_IT_BACK
1784 pci_free_consistent(ha->pdev, 8000, tbuf, p_tbuf);
1785#endif
1786 return err;
1787}
1788
1789static int
1790qla1280_start_firmware(struct scsi_qla_host *ha)
1791{
1792 uint16_t mb[MAILBOX_REGISTER_COUNT];
1793 int err;
1794
1795 dprintk(1, "%s: Verifying checksum of loaded RISC code.\n",
1796 __FUNCTION__);
1797
1798 /* Verify checksum of loaded RISC code. */
1799 mb[0] = MBC_VERIFY_CHECKSUM;
1800 /* mb[1] = ql12_risc_code_addr01; */
1801 mb[1] = *ql1280_board_tbl[ha->devnum].fwstart;
1802 err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
1803 if (err) {
Christoph Hellwig 2b55cac2005-07-04 17:48:30 +02001804 printk(KERN_ERR "scsi(%li): RISC checksum failed.\n", ha->host_no);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001805 return err;
1806 }
1807
1808 /* Start firmware execution. */
1809 dprintk(1, "%s: start firmware running.\n", __FUNCTION__);
1810 mb[0] = MBC_EXECUTE_FIRMWARE;
1811 mb[1] = *ql1280_board_tbl[ha->devnum].fwstart;
1812 err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
1813 if (err) {
1814 printk(KERN_ERR "scsi(%li): Failed to start firmware\n",
1815 ha->host_no);
1816 }
1817
1818 return err;
1819}
1820
1821static int
1822qla1280_load_firmware(struct scsi_qla_host *ha)
1823{
Christoph Hellwig 5c79d612005-07-04 17:48:46 +02001824 int err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001825
1826 err = qla1280_chip_diag(ha);
1827 if (err)
1828 goto out;
1829 if (IS_ISP1040(ha))
1830 err = qla1280_load_firmware_pio(ha);
1831 else
1832 err = qla1280_load_firmware_dma(ha);
1833 if (err)
1834 goto out;
1835 err = qla1280_start_firmware(ha);
1836 out:
1837 return err;
1838}
1839
1840/*
1841 * Initialize rings
1842 *
1843 * Input:
1844 * ha = adapter block pointer.
1845 * ha->request_ring = request ring virtual address
1846 * ha->response_ring = response ring virtual address
1847 * ha->request_dma = request ring physical address
1848 * ha->response_dma = response ring physical address
1849 *
1850 * Returns:
1851 * 0 = success.
1852 */
1853static int
1854qla1280_init_rings(struct scsi_qla_host *ha)
1855{
1856 uint16_t mb[MAILBOX_REGISTER_COUNT];
1857 int status = 0;
1858
1859 ENTER("qla1280_init_rings");
1860
1861 /* Clear outstanding commands array. */
1862 memset(ha->outstanding_cmds, 0,
1863 sizeof(struct srb *) * MAX_OUTSTANDING_COMMANDS);
1864
1865 /* Initialize request queue. */
1866 ha->request_ring_ptr = ha->request_ring;
1867 ha->req_ring_index = 0;
1868 ha->req_q_cnt = REQUEST_ENTRY_CNT;
1869 /* mb[0] = MBC_INIT_REQUEST_QUEUE; */
1870 mb[0] = MBC_INIT_REQUEST_QUEUE_A64;
1871 mb[1] = REQUEST_ENTRY_CNT;
1872 mb[3] = ha->request_dma & 0xffff;
1873 mb[2] = (ha->request_dma >> 16) & 0xffff;
1874 mb[4] = 0;
1875 mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff;
1876 mb[6] = pci_dma_hi32(ha->request_dma) >> 16;
1877 if (!(status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_4 |
1878 BIT_3 | BIT_2 | BIT_1 | BIT_0,
1879 &mb[0]))) {
1880 /* Initialize response queue. */
1881 ha->response_ring_ptr = ha->response_ring;
1882 ha->rsp_ring_index = 0;
1883 /* mb[0] = MBC_INIT_RESPONSE_QUEUE; */
1884 mb[0] = MBC_INIT_RESPONSE_QUEUE_A64;
1885 mb[1] = RESPONSE_ENTRY_CNT;
1886 mb[3] = ha->response_dma & 0xffff;
1887 mb[2] = (ha->response_dma >> 16) & 0xffff;
1888 mb[5] = 0;
1889 mb[7] = pci_dma_hi32(ha->response_dma) & 0xffff;
1890 mb[6] = pci_dma_hi32(ha->response_dma) >> 16;
1891 status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_5 |
1892 BIT_3 | BIT_2 | BIT_1 | BIT_0,
1893 &mb[0]);
1894 }
1895
1896 if (status)
1897 dprintk(2, "qla1280_init_rings: **** FAILED ****\n");
1898
1899 LEAVE("qla1280_init_rings");
1900 return status;
1901}
1902
1903static void
1904qla1280_print_settings(struct nvram *nv)
1905{
1906 dprintk(1, "qla1280 : initiator scsi id bus[0]=%d\n",
1907 nv->bus[0].config_1.initiator_id);
1908 dprintk(1, "qla1280 : initiator scsi id bus[1]=%d\n",
1909 nv->bus[1].config_1.initiator_id);
1910
1911 dprintk(1, "qla1280 : bus reset delay[0]=%d\n",
1912 nv->bus[0].bus_reset_delay);
1913 dprintk(1, "qla1280 : bus reset delay[1]=%d\n",
1914 nv->bus[1].bus_reset_delay);
1915
1916 dprintk(1, "qla1280 : retry count[0]=%d\n", nv->bus[0].retry_count);
1917 dprintk(1, "qla1280 : retry delay[0]=%d\n", nv->bus[0].retry_delay);
1918 dprintk(1, "qla1280 : retry count[1]=%d\n", nv->bus[1].retry_count);
1919 dprintk(1, "qla1280 : retry delay[1]=%d\n", nv->bus[1].retry_delay);
1920
1921 dprintk(1, "qla1280 : async data setup time[0]=%d\n",
1922 nv->bus[0].config_2.async_data_setup_time);
1923 dprintk(1, "qla1280 : async data setup time[1]=%d\n",
1924 nv->bus[1].config_2.async_data_setup_time);
1925
1926 dprintk(1, "qla1280 : req/ack active negation[0]=%d\n",
1927 nv->bus[0].config_2.req_ack_active_negation);
1928 dprintk(1, "qla1280 : req/ack active negation[1]=%d\n",
1929 nv->bus[1].config_2.req_ack_active_negation);
1930
1931 dprintk(1, "qla1280 : data line active negation[0]=%d\n",
1932 nv->bus[0].config_2.data_line_active_negation);
1933 dprintk(1, "qla1280 : data line active negation[1]=%d\n",
1934 nv->bus[1].config_2.data_line_active_negation);
1935
1936 dprintk(1, "qla1280 : disable loading risc code=%d\n",
1937 nv->cntr_flags_1.disable_loading_risc_code);
1938
1939 dprintk(1, "qla1280 : enable 64bit addressing=%d\n",
1940 nv->cntr_flags_1.enable_64bit_addressing);
1941
1942 dprintk(1, "qla1280 : selection timeout limit[0]=%d\n",
1943 nv->bus[0].selection_timeout);
1944 dprintk(1, "qla1280 : selection timeout limit[1]=%d\n",
1945 nv->bus[1].selection_timeout);
1946
1947 dprintk(1, "qla1280 : max queue depth[0]=%d\n",
1948 nv->bus[0].max_queue_depth);
1949 dprintk(1, "qla1280 : max queue depth[1]=%d\n",
1950 nv->bus[1].max_queue_depth);
1951}
1952
1953static void
1954qla1280_set_target_defaults(struct scsi_qla_host *ha, int bus, int target)
1955{
1956 struct nvram *nv = &ha->nvram;
1957
Christoph Hellwig 7a347662005-07-04 17:49:22 +02001958 nv->bus[bus].target[target].parameter.renegotiate_on_error = 1;
1959 nv->bus[bus].target[target].parameter.auto_request_sense = 1;
1960 nv->bus[bus].target[target].parameter.tag_queuing = 1;
1961 nv->bus[bus].target[target].parameter.enable_sync = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001962#if 1 /* Some SCSI Processors do not seem to like this */
Christoph Hellwig 7a347662005-07-04 17:49:22 +02001963 nv->bus[bus].target[target].parameter.enable_wide = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001964#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001965 nv->bus[bus].target[target].execution_throttle =
1966 nv->bus[bus].max_queue_depth - 1;
Christoph Hellwig 7a347662005-07-04 17:49:22 +02001967 nv->bus[bus].target[target].parameter.parity_checking = 1;
1968 nv->bus[bus].target[target].parameter.disconnect_allowed = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001969
1970 if (IS_ISP1x160(ha)) {
1971 nv->bus[bus].target[target].flags.flags1x160.device_enable = 1;
1972 nv->bus[bus].target[target].flags.flags1x160.sync_offset = 0x0e;
1973 nv->bus[bus].target[target].sync_period = 9;
1974 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 1;
1975 nv->bus[bus].target[target].ppr_1x160.flags.ppr_options = 2;
1976 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width = 1;
1977 } else {
1978 nv->bus[bus].target[target].flags.flags1x80.device_enable = 1;
1979 nv->bus[bus].target[target].flags.flags1x80.sync_offset = 12;
1980 nv->bus[bus].target[target].sync_period = 10;
1981 }
1982}
1983
1984static void
1985qla1280_set_defaults(struct scsi_qla_host *ha)
1986{
1987 struct nvram *nv = &ha->nvram;
1988 int bus, target;
1989
1990 dprintk(1, "Using defaults for NVRAM: \n");
1991 memset(nv, 0, sizeof(struct nvram));
1992
1993 /* nv->cntr_flags_1.disable_loading_risc_code = 1; */
1994 nv->firmware_feature.f.enable_fast_posting = 1;
1995 nv->firmware_feature.f.disable_synchronous_backoff = 1;
Christoph Hellwig 0888f4c2005-07-04 17:48:55 +02001996 nv->termination.scsi_bus_0_control = 3;
1997 nv->termination.scsi_bus_1_control = 3;
1998 nv->termination.auto_term_support = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001999
2000 /*
2001 * Set default FIFO magic - What appropriate values would be here
2002 * is unknown. This is what I have found testing with 12160s.
2003 *
2004 * Now, I would love the magic decoder ring for this one, the
2005 * header file provided by QLogic seems to be bogus or incomplete
2006 * at best.
2007 */
Christoph Hellwig 0888f4c2005-07-04 17:48:55 +02002008 nv->isp_config.burst_enable = 1;
2009 if (IS_ISP1040(ha))
2010 nv->isp_config.fifo_threshold |= 3;
2011 else
2012 nv->isp_config.fifo_threshold |= 4;
2013
Linus Torvalds1da177e2005-04-16 15:20:36 -07002014 if (IS_ISP1x160(ha))
2015 nv->isp_parameter = 0x01; /* fast memory enable */
2016
2017 for (bus = 0; bus < MAX_BUSES; bus++) {
2018 nv->bus[bus].config_1.initiator_id = 7;
2019 nv->bus[bus].config_2.req_ack_active_negation = 1;
2020 nv->bus[bus].config_2.data_line_active_negation = 1;
2021 nv->bus[bus].selection_timeout = 250;
2022 nv->bus[bus].max_queue_depth = 256;
2023
2024 if (IS_ISP1040(ha)) {
2025 nv->bus[bus].bus_reset_delay = 3;
2026 nv->bus[bus].config_2.async_data_setup_time = 6;
2027 nv->bus[bus].retry_delay = 1;
2028 } else {
2029 nv->bus[bus].bus_reset_delay = 5;
2030 nv->bus[bus].config_2.async_data_setup_time = 8;
2031 }
2032
2033 for (target = 0; target < MAX_TARGETS; target++)
2034 qla1280_set_target_defaults(ha, bus, target);
2035 }
2036}
2037
2038static int
2039qla1280_config_target(struct scsi_qla_host *ha, int bus, int target)
2040{
2041 struct nvram *nv = &ha->nvram;
2042 uint16_t mb[MAILBOX_REGISTER_COUNT];
2043 int status, lun;
Christoph Hellwig 7a347662005-07-04 17:49:22 +02002044 uint16_t flag;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002045
2046 /* Set Target Parameters. */
2047 mb[0] = MBC_SET_TARGET_PARAMETERS;
Christoph Hellwig 7a347662005-07-04 17:49:22 +02002048 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002049
2050 /*
Christoph Hellwig 7a347662005-07-04 17:49:22 +02002051 * Do not enable sync and ppr for the initial INQUIRY run. We
2052 * enable this later if we determine the target actually
2053 * supports it.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002054 */
Christoph Hellwig 7a347662005-07-04 17:49:22 +02002055 mb[2] = (TP_RENEGOTIATE | TP_AUTO_REQUEST_SENSE | TP_TAGGED_QUEUE
2056 | TP_WIDE | TP_PARITY | TP_DISCONNECT);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002057
2058 if (IS_ISP1x160(ha))
2059 mb[3] = nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8;
2060 else
2061 mb[3] = nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8;
2062 mb[3] |= nv->bus[bus].target[target].sync_period;
Christoph Hellwig 7a347662005-07-04 17:49:22 +02002063 status = qla1280_mailbox_command(ha, 0x0f, mb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002064
2065 /* Save Tag queuing enable flag. */
Christoph Hellwig 7a347662005-07-04 17:49:22 +02002066 flag = (BIT_0 << target) & mb[0];
2067 if (nv->bus[bus].target[target].parameter.tag_queuing)
2068 ha->bus_settings[bus].qtag_enables |= flag;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002069
2070 /* Save Device enable flag. */
2071 if (IS_ISP1x160(ha)) {
2072 if (nv->bus[bus].target[target].flags.flags1x160.device_enable)
Christoph Hellwig 7a347662005-07-04 17:49:22 +02002073 ha->bus_settings[bus].device_enables |= flag;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002074 ha->bus_settings[bus].lun_disables |= 0;
2075 } else {
2076 if (nv->bus[bus].target[target].flags.flags1x80.device_enable)
Christoph Hellwig 7a347662005-07-04 17:49:22 +02002077 ha->bus_settings[bus].device_enables |= flag;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002078 /* Save LUN disable flag. */
2079 if (nv->bus[bus].target[target].flags.flags1x80.lun_disable)
Christoph Hellwig 7a347662005-07-04 17:49:22 +02002080 ha->bus_settings[bus].lun_disables |= flag;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002081 }
2082
2083 /* Set Device Queue Parameters. */
2084 for (lun = 0; lun < MAX_LUNS; lun++) {
2085 mb[0] = MBC_SET_DEVICE_QUEUE;
Christoph Hellwig 7a347662005-07-04 17:49:22 +02002086 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
2087 mb[1] |= lun;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002088 mb[2] = nv->bus[bus].max_queue_depth;
2089 mb[3] = nv->bus[bus].target[target].execution_throttle;
Christoph Hellwig 7a347662005-07-04 17:49:22 +02002090 status |= qla1280_mailbox_command(ha, 0x0f, mb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002091 }
2092
2093 return status;
2094}
2095
2096static int
2097qla1280_config_bus(struct scsi_qla_host *ha, int bus)
2098{
2099 struct nvram *nv = &ha->nvram;
2100 uint16_t mb[MAILBOX_REGISTER_COUNT];
2101 int target, status;
2102
2103 /* SCSI Reset Disable. */
2104 ha->bus_settings[bus].disable_scsi_reset =
2105 nv->bus[bus].config_1.scsi_reset_disable;
2106
2107 /* Initiator ID. */
2108 ha->bus_settings[bus].id = nv->bus[bus].config_1.initiator_id;
2109 mb[0] = MBC_SET_INITIATOR_ID;
2110 mb[1] = bus ? ha->bus_settings[bus].id | BIT_7 :
2111 ha->bus_settings[bus].id;
2112 status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2113
2114 /* Reset Delay. */
2115 ha->bus_settings[bus].bus_reset_delay =
2116 nv->bus[bus].bus_reset_delay;
2117
2118 /* Command queue depth per device. */
2119 ha->bus_settings[bus].hiwat = nv->bus[bus].max_queue_depth - 1;
2120
2121 /* Set target parameters. */
2122 for (target = 0; target < MAX_TARGETS; target++)
2123 status |= qla1280_config_target(ha, bus, target);
2124
2125 return status;
2126}
2127
2128static int
2129qla1280_nvram_config(struct scsi_qla_host *ha)
2130{
2131 struct device_reg __iomem *reg = ha->iobase;
2132 struct nvram *nv = &ha->nvram;
2133 int bus, target, status = 0;
2134 uint16_t mb[MAILBOX_REGISTER_COUNT];
Linus Torvalds1da177e2005-04-16 15:20:36 -07002135
2136 ENTER("qla1280_nvram_config");
2137
2138 if (ha->nvram_valid) {
2139 /* Always force AUTO sense for LINUX SCSI */
2140 for (bus = 0; bus < MAX_BUSES; bus++)
2141 for (target = 0; target < MAX_TARGETS; target++) {
Christoph Hellwig 7a347662005-07-04 17:49:22 +02002142 nv->bus[bus].target[target].parameter.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002143 auto_request_sense = 1;
2144 }
2145 } else {
2146 qla1280_set_defaults(ha);
2147 }
2148
2149 qla1280_print_settings(nv);
2150
2151 /* Disable RISC load of firmware. */
2152 ha->flags.disable_risc_code_load =
2153 nv->cntr_flags_1.disable_loading_risc_code;
2154
2155 if (IS_ISP1040(ha)) {
2156 uint16_t hwrev, cfg1, cdma_conf, ddma_conf;
2157
2158 hwrev = RD_REG_WORD(&reg->cfg_0) & ISP_CFG0_HWMSK;
2159
Christoph Hellwig 0888f4c2005-07-04 17:48:55 +02002160 cfg1 = RD_REG_WORD(&reg->cfg_1) & ~(BIT_4 | BIT_5 | BIT_6);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002161 cdma_conf = RD_REG_WORD(&reg->cdma_cfg);
2162 ddma_conf = RD_REG_WORD(&reg->ddma_cfg);
2163
2164 /* Busted fifo, says mjacob. */
Christoph Hellwig 0888f4c2005-07-04 17:48:55 +02002165 if (hwrev != ISP_CFG0_1040A)
2166 cfg1 |= nv->isp_config.fifo_threshold << 4;
2167
2168 cfg1 |= nv->isp_config.burst_enable << 2;
2169 WRT_REG_WORD(&reg->cfg_1, cfg1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002170
2171 WRT_REG_WORD(&reg->cdma_cfg, cdma_conf | CDMA_CONF_BENAB);
2172 WRT_REG_WORD(&reg->ddma_cfg, cdma_conf | DDMA_CONF_BENAB);
2173 } else {
Christoph Hellwig 0888f4c2005-07-04 17:48:55 +02002174 uint16_t cfg1, term;
2175
Linus Torvalds1da177e2005-04-16 15:20:36 -07002176 /* Set ISP hardware DMA burst */
Christoph Hellwig 0888f4c2005-07-04 17:48:55 +02002177 cfg1 = nv->isp_config.fifo_threshold << 4;
2178 cfg1 |= nv->isp_config.burst_enable << 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002179 /* Enable DMA arbitration on dual channel controllers */
2180 if (ha->ports > 1)
Christoph Hellwig 0888f4c2005-07-04 17:48:55 +02002181 cfg1 |= BIT_13;
2182 WRT_REG_WORD(&reg->cfg_1, cfg1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002183
2184 /* Set SCSI termination. */
Christoph Hellwig 0888f4c2005-07-04 17:48:55 +02002185 WRT_REG_WORD(&reg->gpio_enable,
2186 BIT_7 | BIT_3 | BIT_2 | BIT_1 | BIT_0);
2187 term = nv->termination.scsi_bus_1_control;
2188 term |= nv->termination.scsi_bus_0_control << 2;
2189 term |= nv->termination.auto_term_support << 7;
2190 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2191 WRT_REG_WORD(&reg->gpio_data, term);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002192 }
Christoph Hellwig 0888f4c2005-07-04 17:48:55 +02002193 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002194
2195 /* ISP parameter word. */
2196 mb[0] = MBC_SET_SYSTEM_PARAMETER;
2197 mb[1] = nv->isp_parameter;
2198 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2199
2200 if (IS_ISP1x40(ha)) {
2201 /* clock rate - for qla1240 and older, only */
2202 mb[0] = MBC_SET_CLOCK_RATE;
2203 mb[1] = 40;
2204 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2205 }
2206
2207 /* Firmware feature word. */
2208 mb[0] = MBC_SET_FIRMWARE_FEATURES;
Christoph Hellwig 7a347662005-07-04 17:49:22 +02002209 mb[1] = nv->firmware_feature.f.enable_fast_posting;
2210 mb[1] |= nv->firmware_feature.f.report_lvd_bus_transition << 1;
2211 mb[1] |= nv->firmware_feature.f.disable_synchronous_backoff << 5;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002212#if defined(CONFIG_IA64_GENERIC) || defined (CONFIG_IA64_SGI_SN2)
2213 if (ia64_platform_is("sn2")) {
2214 printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA "
2215 "workaround\n", ha->host_no);
Christoph Hellwig 7a347662005-07-04 17:49:22 +02002216 mb[1] |= nv->firmware_feature.f.unused_9 << 9; /* XXX */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002217 }
2218#endif
Christoph Hellwig 7a347662005-07-04 17:49:22 +02002219 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002220
2221 /* Retry count and delay. */
2222 mb[0] = MBC_SET_RETRY_COUNT;
2223 mb[1] = nv->bus[0].retry_count;
2224 mb[2] = nv->bus[0].retry_delay;
2225 mb[6] = nv->bus[1].retry_count;
2226 mb[7] = nv->bus[1].retry_delay;
2227 status |= qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_2 |
2228 BIT_1 | BIT_0, &mb[0]);
2229
2230 /* ASYNC data setup time. */
2231 mb[0] = MBC_SET_ASYNC_DATA_SETUP;
2232 mb[1] = nv->bus[0].config_2.async_data_setup_time;
2233 mb[2] = nv->bus[1].config_2.async_data_setup_time;
2234 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2235
2236 /* Active negation states. */
2237 mb[0] = MBC_SET_ACTIVE_NEGATION;
2238 mb[1] = 0;
2239 if (nv->bus[0].config_2.req_ack_active_negation)
2240 mb[1] |= BIT_5;
2241 if (nv->bus[0].config_2.data_line_active_negation)
2242 mb[1] |= BIT_4;
2243 mb[2] = 0;
2244 if (nv->bus[1].config_2.req_ack_active_negation)
2245 mb[2] |= BIT_5;
2246 if (nv->bus[1].config_2.data_line_active_negation)
2247 mb[2] |= BIT_4;
Christoph Hellwig 7a347662005-07-04 17:49:22 +02002248 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002249
2250 mb[0] = MBC_SET_DATA_OVERRUN_RECOVERY;
2251 mb[1] = 2; /* Reset SCSI bus and return all outstanding IO */
Christoph Hellwig 7a347662005-07-04 17:49:22 +02002252 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002253
2254 /* thingy */
2255 mb[0] = MBC_SET_PCI_CONTROL;
Christoph Hellwig 7a347662005-07-04 17:49:22 +02002256 mb[1] = BIT_1; /* Data DMA Channel Burst Enable */
2257 mb[2] = BIT_1; /* Command DMA Channel Burst Enable */
2258 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002259
2260 mb[0] = MBC_SET_TAG_AGE_LIMIT;
2261 mb[1] = 8;
Christoph Hellwig 7a347662005-07-04 17:49:22 +02002262 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002263
2264 /* Selection timeout. */
2265 mb[0] = MBC_SET_SELECTION_TIMEOUT;
2266 mb[1] = nv->bus[0].selection_timeout;
2267 mb[2] = nv->bus[1].selection_timeout;
Christoph Hellwig 7a347662005-07-04 17:49:22 +02002268 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002269
2270 for (bus = 0; bus < ha->ports; bus++)
2271 status |= qla1280_config_bus(ha, bus);
2272
2273 if (status)
2274 dprintk(2, "qla1280_nvram_config: **** FAILED ****\n");
2275
2276 LEAVE("qla1280_nvram_config");
2277 return status;
2278}
2279
2280/*
2281 * Get NVRAM data word
2282 * Calculates word position in NVRAM and calls request routine to
2283 * get the word from NVRAM.
2284 *
2285 * Input:
2286 * ha = adapter block pointer.
2287 * address = NVRAM word address.
2288 *
2289 * Returns:
2290 * data word.
2291 */
2292static uint16_t
2293qla1280_get_nvram_word(struct scsi_qla_host *ha, uint32_t address)
2294{
2295 uint32_t nv_cmd;
2296 uint16_t data;
2297
2298 nv_cmd = address << 16;
2299 nv_cmd |= NV_READ_OP;
2300
2301 data = le16_to_cpu(qla1280_nvram_request(ha, nv_cmd));
2302
2303 dprintk(8, "qla1280_get_nvram_word: exiting normally NVRAM data = "
2304 "0x%x", data);
2305
2306 return data;
2307}
2308
2309/*
2310 * NVRAM request
2311 * Sends read command to NVRAM and gets data from NVRAM.
2312 *
2313 * Input:
2314 * ha = adapter block pointer.
2315 * nv_cmd = Bit 26 = start bit
2316 * Bit 25, 24 = opcode
2317 * Bit 23-16 = address
2318 * Bit 15-0 = write data
2319 *
2320 * Returns:
2321 * data word.
2322 */
2323static uint16_t
2324qla1280_nvram_request(struct scsi_qla_host *ha, uint32_t nv_cmd)
2325{
2326 struct device_reg __iomem *reg = ha->iobase;
2327 int cnt;
2328 uint16_t data = 0;
2329 uint16_t reg_data;
2330
2331 /* Send command to NVRAM. */
2332
2333 nv_cmd <<= 5;
2334 for (cnt = 0; cnt < 11; cnt++) {
2335 if (nv_cmd & BIT_31)
2336 qla1280_nv_write(ha, NV_DATA_OUT);
2337 else
2338 qla1280_nv_write(ha, 0);
2339 nv_cmd <<= 1;
2340 }
2341
2342 /* Read data from NVRAM. */
2343
2344 for (cnt = 0; cnt < 16; cnt++) {
2345 WRT_REG_WORD(&reg->nvram, (NV_SELECT | NV_CLOCK));
2346 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2347 NVRAM_DELAY();
2348 data <<= 1;
2349 reg_data = RD_REG_WORD(&reg->nvram);
2350 if (reg_data & NV_DATA_IN)
2351 data |= BIT_0;
2352 WRT_REG_WORD(&reg->nvram, NV_SELECT);
2353 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2354 NVRAM_DELAY();
2355 }
2356
2357 /* Deselect chip. */
2358
2359 WRT_REG_WORD(&reg->nvram, NV_DESELECT);
2360 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2361 NVRAM_DELAY();
2362
2363 return data;
2364}
2365
2366static void
2367qla1280_nv_write(struct scsi_qla_host *ha, uint16_t data)
2368{
2369 struct device_reg __iomem *reg = ha->iobase;
2370
2371 WRT_REG_WORD(&reg->nvram, data | NV_SELECT);
2372 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2373 NVRAM_DELAY();
2374 WRT_REG_WORD(&reg->nvram, data | NV_SELECT | NV_CLOCK);
2375 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2376 NVRAM_DELAY();
2377 WRT_REG_WORD(&reg->nvram, data | NV_SELECT);
2378 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2379 NVRAM_DELAY();
2380}
2381
2382/*
2383 * Mailbox Command
2384 * Issue mailbox command and waits for completion.
2385 *
2386 * Input:
2387 * ha = adapter block pointer.
2388 * mr = mailbox registers to load.
2389 * mb = data pointer for mailbox registers.
2390 *
2391 * Output:
2392 * mb[MAILBOX_REGISTER_COUNT] = returned mailbox data.
2393 *
2394 * Returns:
2395 * 0 = success
2396 */
2397static int
2398qla1280_mailbox_command(struct scsi_qla_host *ha, uint8_t mr, uint16_t *mb)
2399{
2400 struct device_reg __iomem *reg = ha->iobase;
2401#if 0
2402 LIST_HEAD(done_q);
2403#endif
2404 int status = 0;
2405 int cnt;
2406 uint16_t *optr, *iptr;
2407 uint16_t __iomem *mptr;
2408 uint16_t data;
Peter Zijlstra6e9a4732006-09-30 23:28:10 -07002409 DECLARE_COMPLETION_ONSTACK(wait);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002410 struct timer_list timer;
2411
2412 ENTER("qla1280_mailbox_command");
2413
2414 if (ha->mailbox_wait) {
2415 printk(KERN_ERR "Warning mailbox wait already in use!\n");
2416 }
2417 ha->mailbox_wait = &wait;
2418
2419 /*
2420 * We really should start out by verifying that the mailbox is
2421 * available before starting sending the command data
2422 */
2423 /* Load mailbox registers. */
2424 mptr = (uint16_t __iomem *) &reg->mailbox0;
2425 iptr = mb;
2426 for (cnt = 0; cnt < MAILBOX_REGISTER_COUNT; cnt++) {
2427 if (mr & BIT_0) {
2428 WRT_REG_WORD(mptr, (*iptr));
2429 }
2430
2431 mr >>= 1;
2432 mptr++;
2433 iptr++;
2434 }
2435
2436 /* Issue set host interrupt command. */
2437
2438 /* set up a timer just in case we're really jammed */
2439 init_timer(&timer);
2440 timer.expires = jiffies + 20*HZ;
2441 timer.data = (unsigned long)ha;
2442 timer.function = qla1280_mailbox_timeout;
2443 add_timer(&timer);
2444
Jes Sorensen2dbb04c2006-01-16 11:49:29 -05002445 spin_unlock_irq(ha->host->host_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002446 WRT_REG_WORD(&reg->host_cmd, HC_SET_HOST_INT);
2447 data = qla1280_debounce_register(&reg->istatus);
2448
2449 wait_for_completion(&wait);
2450 del_timer_sync(&timer);
2451
Jes Sorensen2dbb04c2006-01-16 11:49:29 -05002452 spin_lock_irq(ha->host->host_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002453
2454 ha->mailbox_wait = NULL;
2455
2456 /* Check for mailbox command timeout. */
2457 if (ha->mailbox_out[0] != MBS_CMD_CMP) {
2458 printk(KERN_WARNING "qla1280_mailbox_command: Command failed, "
2459 "mailbox0 = 0x%04x, mailbox_out0 = 0x%04x, istatus = "
2460 "0x%04x\n",
2461 mb[0], ha->mailbox_out[0], RD_REG_WORD(&reg->istatus));
2462 printk(KERN_WARNING "m0 %04x, m1 %04x, m2 %04x, m3 %04x\n",
2463 RD_REG_WORD(&reg->mailbox0), RD_REG_WORD(&reg->mailbox1),
2464 RD_REG_WORD(&reg->mailbox2), RD_REG_WORD(&reg->mailbox3));
2465 printk(KERN_WARNING "m4 %04x, m5 %04x, m6 %04x, m7 %04x\n",
2466 RD_REG_WORD(&reg->mailbox4), RD_REG_WORD(&reg->mailbox5),
2467 RD_REG_WORD(&reg->mailbox6), RD_REG_WORD(&reg->mailbox7));
2468 status = 1;
2469 }
2470
2471 /* Load return mailbox registers. */
2472 optr = mb;
2473 iptr = (uint16_t *) &ha->mailbox_out[0];
2474 mr = MAILBOX_REGISTER_COUNT;
2475 memcpy(optr, iptr, MAILBOX_REGISTER_COUNT * sizeof(uint16_t));
2476
2477#if 0
2478 /* Go check for any response interrupts pending. */
2479 qla1280_isr(ha, &done_q);
2480#endif
2481
2482 if (ha->flags.reset_marker)
2483 qla1280_rst_aen(ha);
2484
2485#if 0
2486 if (!list_empty(&done_q))
2487 qla1280_done(ha, &done_q);
2488#endif
2489
2490 if (status)
2491 dprintk(2, "qla1280_mailbox_command: **** FAILED, mailbox0 = "
2492 "0x%x ****\n", mb[0]);
2493
2494 LEAVE("qla1280_mailbox_command");
2495 return status;
2496}
2497
2498/*
2499 * qla1280_poll
2500 * Polls ISP for interrupts.
2501 *
2502 * Input:
2503 * ha = adapter block pointer.
2504 */
2505static void
2506qla1280_poll(struct scsi_qla_host *ha)
2507{
2508 struct device_reg __iomem *reg = ha->iobase;
2509 uint16_t data;
2510 LIST_HEAD(done_q);
2511
2512 /* ENTER("qla1280_poll"); */
2513
2514 /* Check for pending interrupts. */
2515 data = RD_REG_WORD(&reg->istatus);
2516 if (data & RISC_INT)
2517 qla1280_isr(ha, &done_q);
2518
2519 if (!ha->mailbox_wait) {
2520 if (ha->flags.reset_marker)
2521 qla1280_rst_aen(ha);
2522 }
2523
2524 if (!list_empty(&done_q))
2525 qla1280_done(ha);
2526
2527 /* LEAVE("qla1280_poll"); */
2528}
2529
2530/*
2531 * qla1280_bus_reset
2532 * Issue SCSI bus reset.
2533 *
2534 * Input:
2535 * ha = adapter block pointer.
2536 * bus = SCSI bus number.
2537 *
2538 * Returns:
2539 * 0 = success
2540 */
2541static int
2542qla1280_bus_reset(struct scsi_qla_host *ha, int bus)
2543{
2544 uint16_t mb[MAILBOX_REGISTER_COUNT];
2545 uint16_t reset_delay;
2546 int status;
2547
2548 dprintk(3, "qla1280_bus_reset: entered\n");
2549
2550 if (qla1280_verbose)
2551 printk(KERN_INFO "scsi(%li:%i): Resetting SCSI BUS\n",
2552 ha->host_no, bus);
2553
2554 reset_delay = ha->bus_settings[bus].bus_reset_delay;
2555 mb[0] = MBC_BUS_RESET;
2556 mb[1] = reset_delay;
2557 mb[2] = (uint16_t) bus;
2558 status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2559
2560 if (status) {
2561 if (ha->bus_settings[bus].failed_reset_count > 2)
2562 ha->bus_settings[bus].scsi_bus_dead = 1;
2563 ha->bus_settings[bus].failed_reset_count++;
2564 } else {
Jes Sorensen2dbb04c2006-01-16 11:49:29 -05002565 spin_unlock_irq(ha->host->host_lock);
Nishanth Aravamudan117e4b22005-06-20 23:55:07 +02002566 ssleep(reset_delay);
Jes Sorensen2dbb04c2006-01-16 11:49:29 -05002567 spin_lock_irq(ha->host->host_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002568
2569 ha->bus_settings[bus].scsi_bus_dead = 0;
2570 ha->bus_settings[bus].failed_reset_count = 0;
2571 ha->bus_settings[bus].reset_marker = 0;
2572 /* Issue marker command. */
2573 qla1280_marker(ha, bus, 0, 0, MK_SYNC_ALL);
2574 }
2575
2576 /*
2577 * We should probably call qla1280_set_target_parameters()
2578 * here as well for all devices on the bus.
2579 */
2580
2581 if (status)
2582 dprintk(2, "qla1280_bus_reset: **** FAILED ****\n");
2583 else
2584 dprintk(3, "qla1280_bus_reset: exiting normally\n");
2585
2586 return status;
2587}
2588
2589/*
2590 * qla1280_device_reset
2591 * Issue bus device reset message to the target.
2592 *
2593 * Input:
2594 * ha = adapter block pointer.
2595 * bus = SCSI BUS number.
2596 * target = SCSI ID.
2597 *
2598 * Returns:
2599 * 0 = success
2600 */
2601static int
2602qla1280_device_reset(struct scsi_qla_host *ha, int bus, int target)
2603{
2604 uint16_t mb[MAILBOX_REGISTER_COUNT];
2605 int status;
2606
2607 ENTER("qla1280_device_reset");
2608
2609 mb[0] = MBC_ABORT_TARGET;
2610 mb[1] = (bus ? (target | BIT_7) : target) << 8;
2611 mb[2] = 1;
2612 status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2613
2614 /* Issue marker command. */
2615 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
2616
2617 if (status)
2618 dprintk(2, "qla1280_device_reset: **** FAILED ****\n");
2619
2620 LEAVE("qla1280_device_reset");
2621 return status;
2622}
2623
2624/*
2625 * qla1280_abort_device
2626 * Issue an abort message to the device
2627 *
2628 * Input:
2629 * ha = adapter block pointer.
2630 * bus = SCSI BUS.
2631 * target = SCSI ID.
2632 * lun = SCSI LUN.
2633 *
2634 * Returns:
2635 * 0 = success
2636 */
2637static int
2638qla1280_abort_device(struct scsi_qla_host *ha, int bus, int target, int lun)
2639{
2640 uint16_t mb[MAILBOX_REGISTER_COUNT];
2641 int status;
2642
2643 ENTER("qla1280_abort_device");
2644
2645 mb[0] = MBC_ABORT_DEVICE;
2646 mb[1] = (bus ? target | BIT_7 : target) << 8 | lun;
2647 status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2648
2649 /* Issue marker command. */
2650 qla1280_marker(ha, bus, target, lun, MK_SYNC_ID_LUN);
2651
2652 if (status)
2653 dprintk(2, "qla1280_abort_device: **** FAILED ****\n");
2654
2655 LEAVE("qla1280_abort_device");
2656 return status;
2657}
2658
2659/*
2660 * qla1280_abort_command
2661 * Abort command aborts a specified IOCB.
2662 *
2663 * Input:
2664 * ha = adapter block pointer.
2665 * sp = SB structure pointer.
2666 *
2667 * Returns:
2668 * 0 = success
2669 */
2670static int
2671qla1280_abort_command(struct scsi_qla_host *ha, struct srb * sp, int handle)
2672{
2673 uint16_t mb[MAILBOX_REGISTER_COUNT];
2674 unsigned int bus, target, lun;
2675 int status;
2676
2677 ENTER("qla1280_abort_command");
2678
2679 bus = SCSI_BUS_32(sp->cmd);
2680 target = SCSI_TCN_32(sp->cmd);
2681 lun = SCSI_LUN_32(sp->cmd);
2682
2683 sp->flags |= SRB_ABORT_PENDING;
2684
2685 mb[0] = MBC_ABORT_COMMAND;
2686 mb[1] = (bus ? target | BIT_7 : target) << 8 | lun;
2687 mb[2] = handle >> 16;
2688 mb[3] = handle & 0xffff;
2689 status = qla1280_mailbox_command(ha, 0x0f, &mb[0]);
2690
2691 if (status) {
2692 dprintk(2, "qla1280_abort_command: **** FAILED ****\n");
2693 sp->flags &= ~SRB_ABORT_PENDING;
2694 }
2695
2696
2697 LEAVE("qla1280_abort_command");
2698 return status;
2699}
2700
2701/*
2702 * qla1280_reset_adapter
2703 * Reset adapter.
2704 *
2705 * Input:
2706 * ha = adapter block pointer.
2707 */
2708static void
2709qla1280_reset_adapter(struct scsi_qla_host *ha)
2710{
2711 struct device_reg __iomem *reg = ha->iobase;
2712
2713 ENTER("qla1280_reset_adapter");
2714
2715 /* Disable ISP chip */
2716 ha->flags.online = 0;
2717 WRT_REG_WORD(&reg->ictrl, ISP_RESET);
2718 WRT_REG_WORD(&reg->host_cmd,
2719 HC_RESET_RISC | HC_RELEASE_RISC | HC_DISABLE_BIOS);
2720 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2721
2722 LEAVE("qla1280_reset_adapter");
2723}
2724
2725/*
2726 * Issue marker command.
2727 * Function issues marker IOCB.
2728 *
2729 * Input:
2730 * ha = adapter block pointer.
2731 * bus = SCSI BUS number
2732 * id = SCSI ID
2733 * lun = SCSI LUN
2734 * type = marker modifier
2735 */
2736static void
2737qla1280_marker(struct scsi_qla_host *ha, int bus, int id, int lun, u8 type)
2738{
2739 struct mrk_entry *pkt;
2740
2741 ENTER("qla1280_marker");
2742
2743 /* Get request packet. */
2744 if ((pkt = (struct mrk_entry *) qla1280_req_pkt(ha))) {
2745 pkt->entry_type = MARKER_TYPE;
2746 pkt->lun = (uint8_t) lun;
2747 pkt->target = (uint8_t) (bus ? (id | BIT_7) : id);
2748 pkt->modifier = type;
2749 pkt->entry_status = 0;
2750
2751 /* Issue command to ISP */
2752 qla1280_isp_cmd(ha);
2753 }
2754
2755 LEAVE("qla1280_marker");
2756}
2757
2758
2759/*
2760 * qla1280_64bit_start_scsi
2761 * The start SCSI is responsible for building request packets on
2762 * request ring and modifying ISP input pointer.
2763 *
2764 * Input:
2765 * ha = adapter block pointer.
2766 * sp = SB structure pointer.
2767 *
2768 * Returns:
2769 * 0 = success, was able to issue command.
2770 */
2771#ifdef QLA_64BIT_PTR
2772static int
2773qla1280_64bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
2774{
2775 struct device_reg __iomem *reg = ha->iobase;
2776 struct scsi_cmnd *cmd = sp->cmd;
2777 cmd_a64_entry_t *pkt;
2778 struct scatterlist *sg = NULL;
Christoph Hellwig 8d6810d2005-07-04 17:49:26 +02002779 __le32 *dword_ptr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002780 dma_addr_t dma_handle;
2781 int status = 0;
2782 int cnt;
2783 int req_cnt;
2784 u16 seg_cnt;
2785 u8 dir;
2786
2787 ENTER("qla1280_64bit_start_scsi:");
2788
2789 /* Calculate number of entries and segments required. */
2790 req_cnt = 1;
2791 if (cmd->use_sg) {
2792 sg = (struct scatterlist *) cmd->request_buffer;
2793 seg_cnt = pci_map_sg(ha->pdev, sg, cmd->use_sg,
2794 cmd->sc_data_direction);
2795
2796 if (seg_cnt > 2) {
2797 req_cnt += (seg_cnt - 2) / 5;
2798 if ((seg_cnt - 2) % 5)
2799 req_cnt++;
2800 }
2801 } else if (cmd->request_bufflen) { /* If data transfer. */
2802 seg_cnt = 1;
2803 } else {
2804 seg_cnt = 0;
2805 }
2806
2807 if ((req_cnt + 2) >= ha->req_q_cnt) {
2808 /* Calculate number of free request entries. */
2809 cnt = RD_REG_WORD(&reg->mailbox4);
2810 if (ha->req_ring_index < cnt)
2811 ha->req_q_cnt = cnt - ha->req_ring_index;
2812 else
2813 ha->req_q_cnt =
2814 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
2815 }
2816
Christoph Hellwig 2b55cac2005-07-04 17:48:30 +02002817 dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
2818 ha->req_q_cnt, seg_cnt);
2819
Linus Torvalds1da177e2005-04-16 15:20:36 -07002820 /* If room for request in request ring. */
2821 if ((req_cnt + 2) >= ha->req_q_cnt) {
2822 status = 1;
Christoph Hellwig 2b55cac2005-07-04 17:48:30 +02002823 dprintk(2, "qla1280_start_scsi: in-ptr=0x%x req_q_cnt="
Linus Torvalds1da177e2005-04-16 15:20:36 -07002824 "0x%xreq_cnt=0x%x", ha->req_ring_index, ha->req_q_cnt,
2825 req_cnt);
2826 goto out;
2827 }
2828
2829 /* Check for room in outstanding command list. */
2830 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
2831 ha->outstanding_cmds[cnt] != 0; cnt++);
2832
2833 if (cnt >= MAX_OUTSTANDING_COMMANDS) {
2834 status = 1;
Christoph Hellwig 2b55cac2005-07-04 17:48:30 +02002835 dprintk(2, "qla1280_start_scsi: NO ROOM IN "
Linus Torvalds1da177e2005-04-16 15:20:36 -07002836 "OUTSTANDING ARRAY, req_q_cnt=0x%x", ha->req_q_cnt);
2837 goto out;
2838 }
2839
2840 ha->outstanding_cmds[cnt] = sp;
2841 ha->req_q_cnt -= req_cnt;
2842 CMD_HANDLE(sp->cmd) = (unsigned char *)(unsigned long)(cnt + 1);
2843
Christoph Hellwig 2b55cac2005-07-04 17:48:30 +02002844 dprintk(2, "start: cmd=%p sp=%p CDB=%xm, handle %lx\n", cmd, sp,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002845 cmd->cmnd[0], (long)CMD_HANDLE(sp->cmd));
2846 dprintk(2, " bus %i, target %i, lun %i\n",
2847 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
2848 qla1280_dump_buffer(2, cmd->cmnd, MAX_COMMAND_SIZE);
2849
2850 /*
2851 * Build command packet.
2852 */
2853 pkt = (cmd_a64_entry_t *) ha->request_ring_ptr;
2854
2855 pkt->entry_type = COMMAND_A64_TYPE;
2856 pkt->entry_count = (uint8_t) req_cnt;
2857 pkt->sys_define = (uint8_t) ha->req_ring_index;
2858 pkt->entry_status = 0;
2859 pkt->handle = cpu_to_le32(cnt);
2860
2861 /* Zero out remaining portion of packet. */
2862 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
2863
2864 /* Set ISP command timeout. */
Jes Sorensen15d1f532006-09-25 05:44:57 -04002865 pkt->timeout = cpu_to_le16(cmd->timeout_per_command/HZ);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002866
2867 /* Set device target ID and LUN */
2868 pkt->lun = SCSI_LUN_32(cmd);
2869 pkt->target = SCSI_BUS_32(cmd) ?
2870 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
2871
2872 /* Enable simple tag queuing if device supports it. */
Jes Sorensen2dbb04c2006-01-16 11:49:29 -05002873 if (cmd->device->simple_tags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002874 pkt->control_flags |= cpu_to_le16(BIT_3);
2875
2876 /* Load SCSI command packet. */
2877 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
2878 memcpy(pkt->scsi_cdb, &(CMD_CDBP(cmd)), CMD_CDBLEN(cmd));
2879 /* dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
2880
2881 /* Set transfer direction. */
2882 dir = qla1280_data_direction(cmd);
2883 pkt->control_flags |= cpu_to_le16(dir);
2884
2885 /* Set total data segment count. */
2886 pkt->dseg_count = cpu_to_le16(seg_cnt);
2887
2888 /*
2889 * Load data segments.
2890 */
2891 if (seg_cnt) { /* If data transfer. */
2892 /* Setup packet address segment pointer. */
2893 dword_ptr = (u32 *)&pkt->dseg_0_address;
2894
2895 if (cmd->use_sg) { /* If scatter gather */
2896 /* Load command entry data segments. */
2897 for (cnt = 0; cnt < 2 && seg_cnt; cnt++, seg_cnt--) {
2898 dma_handle = sg_dma_address(sg);
2899#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
2900 if (ha->flags.use_pci_vchannel)
2901 sn_pci_set_vchan(ha->pdev,
2902 (unsigned long *)&dma_handle,
2903 SCSI_BUS_32(cmd));
2904#endif
2905 *dword_ptr++ =
2906 cpu_to_le32(pci_dma_lo32(dma_handle));
2907 *dword_ptr++ =
2908 cpu_to_le32(pci_dma_hi32(dma_handle));
2909 *dword_ptr++ = cpu_to_le32(sg_dma_len(sg));
2910 sg++;
2911 dprintk(3, "S/G Segment phys_addr=%x %x, len=0x%x\n",
2912 cpu_to_le32(pci_dma_hi32(dma_handle)),
2913 cpu_to_le32(pci_dma_lo32(dma_handle)),
2914 cpu_to_le32(sg_dma_len(sg)));
2915 }
2916 dprintk(5, "qla1280_64bit_start_scsi: Scatter/gather "
2917 "command packet data - b %i, t %i, l %i \n",
2918 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd),
2919 SCSI_LUN_32(cmd));
2920 qla1280_dump_buffer(5, (char *)pkt,
2921 REQUEST_ENTRY_SIZE);
2922
2923 /*
2924 * Build continuation packets.
2925 */
2926 dprintk(3, "S/G Building Continuation...seg_cnt=0x%x "
2927 "remains\n", seg_cnt);
2928
2929 while (seg_cnt > 0) {
2930 /* Adjust ring index. */
2931 ha->req_ring_index++;
2932 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
2933 ha->req_ring_index = 0;
2934 ha->request_ring_ptr =
2935 ha->request_ring;
2936 } else
2937 ha->request_ring_ptr++;
2938
2939 pkt = (cmd_a64_entry_t *)ha->request_ring_ptr;
2940
2941 /* Zero out packet. */
2942 memset(pkt, 0, REQUEST_ENTRY_SIZE);
2943
2944 /* Load packet defaults. */
2945 ((struct cont_a64_entry *) pkt)->entry_type =
2946 CONTINUE_A64_TYPE;
2947 ((struct cont_a64_entry *) pkt)->entry_count = 1;
2948 ((struct cont_a64_entry *) pkt)->sys_define =
2949 (uint8_t)ha->req_ring_index;
2950 /* Setup packet address segment pointer. */
2951 dword_ptr =
2952 (u32 *)&((struct cont_a64_entry *) pkt)->dseg_0_address;
2953
2954 /* Load continuation entry data segments. */
2955 for (cnt = 0; cnt < 5 && seg_cnt;
2956 cnt++, seg_cnt--) {
2957 dma_handle = sg_dma_address(sg);
2958#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
2959 if (ha->flags.use_pci_vchannel)
2960 sn_pci_set_vchan(ha->pdev,
2961 (unsigned long *)&dma_handle,
2962 SCSI_BUS_32(cmd));
2963#endif
2964 *dword_ptr++ =
2965 cpu_to_le32(pci_dma_lo32(dma_handle));
2966 *dword_ptr++ =
2967 cpu_to_le32(pci_dma_hi32(dma_handle));
2968 *dword_ptr++ =
2969 cpu_to_le32(sg_dma_len(sg));
2970 dprintk(3, "S/G Segment Cont. phys_addr=%x %x, len=0x%x\n",
2971 cpu_to_le32(pci_dma_hi32(dma_handle)),
2972 cpu_to_le32(pci_dma_lo32(dma_handle)),
2973 cpu_to_le32(sg_dma_len(sg)));
2974 sg++;
2975 }
2976 dprintk(5, "qla1280_64bit_start_scsi: "
2977 "continuation packet data - b %i, t "
2978 "%i, l %i \n", SCSI_BUS_32(cmd),
2979 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
2980 qla1280_dump_buffer(5, (char *)pkt,
2981 REQUEST_ENTRY_SIZE);
2982 }
2983 } else { /* No scatter gather data transfer */
2984 dma_handle = pci_map_single(ha->pdev,
2985 cmd->request_buffer,
2986 cmd->request_bufflen,
2987 cmd->sc_data_direction);
2988
2989 sp->saved_dma_handle = dma_handle;
2990#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
2991 if (ha->flags.use_pci_vchannel)
2992 sn_pci_set_vchan(ha->pdev,
2993 (unsigned long *)&dma_handle,
2994 SCSI_BUS_32(cmd));
2995#endif
2996 *dword_ptr++ = cpu_to_le32(pci_dma_lo32(dma_handle));
2997 *dword_ptr++ = cpu_to_le32(pci_dma_hi32(dma_handle));
2998 *dword_ptr = cpu_to_le32(cmd->request_bufflen);
2999
3000 dprintk(5, "qla1280_64bit_start_scsi: No scatter/"
3001 "gather command packet data - b %i, t %i, "
3002 "l %i \n", SCSI_BUS_32(cmd), SCSI_TCN_32(cmd),
3003 SCSI_LUN_32(cmd));
3004 qla1280_dump_buffer(5, (char *)pkt,
3005 REQUEST_ENTRY_SIZE);
3006 }
3007 } else { /* No data transfer */
3008 dprintk(5, "qla1280_64bit_start_scsi: No data, command "
3009 "packet data - b %i, t %i, l %i \n",
3010 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
3011 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
3012 }
3013 /* Adjust ring index. */
3014 ha->req_ring_index++;
3015 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3016 ha->req_ring_index = 0;
3017 ha->request_ring_ptr = ha->request_ring;
3018 } else
3019 ha->request_ring_ptr++;
3020
3021 /* Set chip new ring index. */
3022 dprintk(2,
3023 "qla1280_64bit_start_scsi: Wakeup RISC for pending command\n");
3024 sp->flags |= SRB_SENT;
3025 ha->actthreads++;
3026 WRT_REG_WORD(&reg->mailbox4, ha->req_ring_index);
3027 /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */
3028 mmiowb();
3029
3030 out:
3031 if (status)
3032 dprintk(2, "qla1280_64bit_start_scsi: **** FAILED ****\n");
3033 else
3034 dprintk(3, "qla1280_64bit_start_scsi: exiting normally\n");
3035
3036 return status;
3037}
3038#else /* !QLA_64BIT_PTR */
3039
3040/*
3041 * qla1280_32bit_start_scsi
3042 * The start SCSI is responsible for building request packets on
3043 * request ring and modifying ISP input pointer.
3044 *
3045 * The Qlogic firmware interface allows every queue slot to have a SCSI
3046 * command and up to 4 scatter/gather (SG) entries. If we need more
3047 * than 4 SG entries, then continuation entries are used that can
3048 * hold another 7 entries each. The start routine determines if there
3049 * is eought empty slots then build the combination of requests to
3050 * fulfill the OS request.
3051 *
3052 * Input:
3053 * ha = adapter block pointer.
3054 * sp = SCSI Request Block structure pointer.
3055 *
3056 * Returns:
3057 * 0 = success, was able to issue command.
3058 */
3059static int
3060qla1280_32bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
3061{
3062 struct device_reg __iomem *reg = ha->iobase;
3063 struct scsi_cmnd *cmd = sp->cmd;
3064 struct cmd_entry *pkt;
3065 struct scatterlist *sg = NULL;
Christoph Hellwig 8d6810d2005-07-04 17:49:26 +02003066 __le32 *dword_ptr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003067 int status = 0;
3068 int cnt;
3069 int req_cnt;
3070 uint16_t seg_cnt;
3071 dma_addr_t dma_handle;
3072 u8 dir;
3073
3074 ENTER("qla1280_32bit_start_scsi");
3075
3076 dprintk(1, "32bit_start: cmd=%p sp=%p CDB=%x\n", cmd, sp,
3077 cmd->cmnd[0]);
3078
3079 /* Calculate number of entries and segments required. */
3080 req_cnt = 1;
3081 if (cmd->use_sg) {
3082 /*
3083 * We must build an SG list in adapter format, as the kernel's
3084 * SG list cannot be used directly because of data field size
3085 * (__alpha__) differences and the kernel SG list uses virtual
3086 * addresses where we need physical addresses.
3087 */
3088 sg = (struct scatterlist *) cmd->request_buffer;
3089 seg_cnt = pci_map_sg(ha->pdev, sg, cmd->use_sg,
3090 cmd->sc_data_direction);
3091
3092 /*
3093 * if greater than four sg entries then we need to allocate
3094 * continuation entries
3095 */
3096 if (seg_cnt > 4) {
3097 req_cnt += (seg_cnt - 4) / 7;
3098 if ((seg_cnt - 4) % 7)
3099 req_cnt++;
3100 }
3101 dprintk(3, "S/G Transfer cmd=%p seg_cnt=0x%x, req_cnt=%x\n",
3102 cmd, seg_cnt, req_cnt);
3103 } else if (cmd->request_bufflen) { /* If data transfer. */
3104 dprintk(3, "No S/G transfer t=%x cmd=%p len=%x CDB=%x\n",
3105 SCSI_TCN_32(cmd), cmd, cmd->request_bufflen,
3106 cmd->cmnd[0]);
3107 seg_cnt = 1;
3108 } else {
3109 /* dprintk(1, "No data transfer \n"); */
3110 seg_cnt = 0;
3111 }
3112
3113 if ((req_cnt + 2) >= ha->req_q_cnt) {
3114 /* Calculate number of free request entries. */
3115 cnt = RD_REG_WORD(&reg->mailbox4);
3116 if (ha->req_ring_index < cnt)
3117 ha->req_q_cnt = cnt - ha->req_ring_index;
3118 else
3119 ha->req_q_cnt =
3120 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
3121 }
3122
3123 dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
3124 ha->req_q_cnt, seg_cnt);
3125 /* If room for request in request ring. */
3126 if ((req_cnt + 2) >= ha->req_q_cnt) {
3127 status = 1;
3128 dprintk(2, "qla1280_32bit_start_scsi: in-ptr=0x%x, "
3129 "req_q_cnt=0x%x, req_cnt=0x%x", ha->req_ring_index,
3130 ha->req_q_cnt, req_cnt);
3131 goto out;
3132 }
3133
3134 /* Check for empty slot in outstanding command list. */
3135 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
3136 (ha->outstanding_cmds[cnt] != 0); cnt++) ;
3137
3138 if (cnt >= MAX_OUTSTANDING_COMMANDS) {
3139 status = 1;
3140 dprintk(2, "qla1280_32bit_start_scsi: NO ROOM IN OUTSTANDING "
3141 "ARRAY, req_q_cnt=0x%x\n", ha->req_q_cnt);
3142 goto out;
3143 }
3144
3145 CMD_HANDLE(sp->cmd) = (unsigned char *) (unsigned long)(cnt + 1);
3146 ha->outstanding_cmds[cnt] = sp;
3147 ha->req_q_cnt -= req_cnt;
3148
3149 /*
3150 * Build command packet.
3151 */
3152 pkt = (struct cmd_entry *) ha->request_ring_ptr;
3153
3154 pkt->entry_type = COMMAND_TYPE;
3155 pkt->entry_count = (uint8_t) req_cnt;
3156 pkt->sys_define = (uint8_t) ha->req_ring_index;
3157 pkt->entry_status = 0;
3158 pkt->handle = cpu_to_le32(cnt);
3159
3160 /* Zero out remaining portion of packet. */
3161 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
3162
3163 /* Set ISP command timeout. */
Jes Sorensen15d1f532006-09-25 05:44:57 -04003164 pkt->timeout = cpu_to_le16(cmd->timeout_per_command/HZ);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003165
3166 /* Set device target ID and LUN */
3167 pkt->lun = SCSI_LUN_32(cmd);
3168 pkt->target = SCSI_BUS_32(cmd) ?
3169 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
3170
3171 /* Enable simple tag queuing if device supports it. */
Jes Sorensen2dbb04c2006-01-16 11:49:29 -05003172 if (cmd->device->simple_tags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003173 pkt->control_flags |= cpu_to_le16(BIT_3);
3174
3175 /* Load SCSI command packet. */
3176 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
3177 memcpy(pkt->scsi_cdb, &(CMD_CDBP(cmd)), CMD_CDBLEN(cmd));
3178
3179 /*dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
3180 /* Set transfer direction. */
3181 dir = qla1280_data_direction(cmd);
3182 pkt->control_flags |= cpu_to_le16(dir);
3183
3184 /* Set total data segment count. */
3185 pkt->dseg_count = cpu_to_le16(seg_cnt);
3186
3187 /*
3188 * Load data segments.
3189 */
3190 if (seg_cnt) {
3191 /* Setup packet address segment pointer. */
3192 dword_ptr = &pkt->dseg_0_address;
3193
3194 if (cmd->use_sg) { /* If scatter gather */
3195 dprintk(3, "Building S/G data segments..\n");
3196 qla1280_dump_buffer(1, (char *)sg, 4 * 16);
3197
3198 /* Load command entry data segments. */
3199 for (cnt = 0; cnt < 4 && seg_cnt; cnt++, seg_cnt--) {
3200 *dword_ptr++ =
3201 cpu_to_le32(pci_dma_lo32(sg_dma_address(sg)));
3202 *dword_ptr++ =
3203 cpu_to_le32(sg_dma_len(sg));
3204 dprintk(3, "S/G Segment phys_addr=0x%lx, len=0x%x\n",
3205 (pci_dma_lo32(sg_dma_address(sg))),
3206 (sg_dma_len(sg)));
3207 sg++;
3208 }
3209 /*
3210 * Build continuation packets.
3211 */
3212 dprintk(3, "S/G Building Continuation"
3213 "...seg_cnt=0x%x remains\n", seg_cnt);
3214 while (seg_cnt > 0) {
3215 /* Adjust ring index. */
3216 ha->req_ring_index++;
3217 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3218 ha->req_ring_index = 0;
3219 ha->request_ring_ptr =
3220 ha->request_ring;
3221 } else
3222 ha->request_ring_ptr++;
3223
3224 pkt = (struct cmd_entry *)ha->request_ring_ptr;
3225
3226 /* Zero out packet. */
3227 memset(pkt, 0, REQUEST_ENTRY_SIZE);
3228
3229 /* Load packet defaults. */
3230 ((struct cont_entry *) pkt)->
3231 entry_type = CONTINUE_TYPE;
3232 ((struct cont_entry *) pkt)->entry_count = 1;
3233
3234 ((struct cont_entry *) pkt)->sys_define =
3235 (uint8_t) ha->req_ring_index;
3236
3237 /* Setup packet address segment pointer. */
3238 dword_ptr =
3239 &((struct cont_entry *) pkt)->dseg_0_address;
3240
3241 /* Load continuation entry data segments. */
3242 for (cnt = 0; cnt < 7 && seg_cnt;
3243 cnt++, seg_cnt--) {
3244 *dword_ptr++ =
3245 cpu_to_le32(pci_dma_lo32(sg_dma_address(sg)));
3246 *dword_ptr++ =
3247 cpu_to_le32(sg_dma_len(sg));
3248 dprintk(1,
3249 "S/G Segment Cont. phys_addr=0x%x, "
3250 "len=0x%x\n",
3251 cpu_to_le32(pci_dma_lo32(sg_dma_address(sg))),
3252 cpu_to_le32(sg_dma_len(sg)));
3253 sg++;
3254 }
3255 dprintk(5, "qla1280_32bit_start_scsi: "
3256 "continuation packet data - "
3257 "scsi(%i:%i:%i)\n", SCSI_BUS_32(cmd),
3258 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
3259 qla1280_dump_buffer(5, (char *)pkt,
3260 REQUEST_ENTRY_SIZE);
3261 }
3262 } else { /* No S/G data transfer */
3263 dma_handle = pci_map_single(ha->pdev,
3264 cmd->request_buffer,
3265 cmd->request_bufflen,
3266 cmd->sc_data_direction);
3267 sp->saved_dma_handle = dma_handle;
3268
3269 *dword_ptr++ = cpu_to_le32(pci_dma_lo32(dma_handle));
3270 *dword_ptr = cpu_to_le32(cmd->request_bufflen);
3271 }
3272 } else { /* No data transfer at all */
3273 dprintk(5, "qla1280_32bit_start_scsi: No data, command "
3274 "packet data - \n");
3275 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
3276 }
3277 dprintk(5, "qla1280_32bit_start_scsi: First IOCB block:\n");
3278 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
3279 REQUEST_ENTRY_SIZE);
3280
3281 /* Adjust ring index. */
3282 ha->req_ring_index++;
3283 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3284 ha->req_ring_index = 0;
3285 ha->request_ring_ptr = ha->request_ring;
3286 } else
3287 ha->request_ring_ptr++;
3288
3289 /* Set chip new ring index. */
3290 dprintk(2, "qla1280_32bit_start_scsi: Wakeup RISC "
3291 "for pending command\n");
3292 sp->flags |= SRB_SENT;
3293 ha->actthreads++;
3294 WRT_REG_WORD(&reg->mailbox4, ha->req_ring_index);
3295 /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */
3296 mmiowb();
3297
3298out:
3299 if (status)
3300 dprintk(2, "qla1280_32bit_start_scsi: **** FAILED ****\n");
3301
3302 LEAVE("qla1280_32bit_start_scsi");
3303
3304 return status;
3305}
3306#endif
3307
3308/*
3309 * qla1280_req_pkt
3310 * Function is responsible for locking ring and
3311 * getting a zeroed out request packet.
3312 *
3313 * Input:
3314 * ha = adapter block pointer.
3315 *
3316 * Returns:
3317 * 0 = failed to get slot.
3318 */
3319static request_t *
3320qla1280_req_pkt(struct scsi_qla_host *ha)
3321{
3322 struct device_reg __iomem *reg = ha->iobase;
3323 request_t *pkt = NULL;
3324 int cnt;
3325 uint32_t timer;
3326
3327 ENTER("qla1280_req_pkt");
3328
3329 /*
3330 * This can be called from interrupt context, damn it!!!
3331 */
3332 /* Wait for 30 seconds for slot. */
3333 for (timer = 15000000; timer; timer--) {
3334 if (ha->req_q_cnt > 0) {
3335 /* Calculate number of free request entries. */
3336 cnt = RD_REG_WORD(&reg->mailbox4);
3337 if (ha->req_ring_index < cnt)
3338 ha->req_q_cnt = cnt - ha->req_ring_index;
3339 else
3340 ha->req_q_cnt =
3341 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
3342 }
3343
3344 /* Found empty request ring slot? */
3345 if (ha->req_q_cnt > 0) {
3346 ha->req_q_cnt--;
3347 pkt = ha->request_ring_ptr;
3348
3349 /* Zero out packet. */
3350 memset(pkt, 0, REQUEST_ENTRY_SIZE);
3351
3352 /*
3353 * How can this be right when we have a ring
3354 * size of 512???
3355 */
3356 /* Set system defined field. */
3357 pkt->sys_define = (uint8_t) ha->req_ring_index;
3358
3359 /* Set entry count. */
3360 pkt->entry_count = 1;
3361
3362 break;
3363 }
3364
3365 udelay(2); /* 10 */
3366
3367 /* Check for pending interrupts. */
3368 qla1280_poll(ha);
3369 }
3370
3371 if (!pkt)
3372 dprintk(2, "qla1280_req_pkt: **** FAILED ****\n");
3373 else
3374 dprintk(3, "qla1280_req_pkt: exiting normally\n");
3375
3376 return pkt;
3377}
3378
3379/*
3380 * qla1280_isp_cmd
3381 * Function is responsible for modifying ISP input pointer.
3382 * Releases ring lock.
3383 *
3384 * Input:
3385 * ha = adapter block pointer.
3386 */
3387static void
3388qla1280_isp_cmd(struct scsi_qla_host *ha)
3389{
3390 struct device_reg __iomem *reg = ha->iobase;
3391
3392 ENTER("qla1280_isp_cmd");
3393
3394 dprintk(5, "qla1280_isp_cmd: IOCB data:\n");
3395 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
3396 REQUEST_ENTRY_SIZE);
3397
3398 /* Adjust ring index. */
3399 ha->req_ring_index++;
3400 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3401 ha->req_ring_index = 0;
3402 ha->request_ring_ptr = ha->request_ring;
3403 } else
3404 ha->request_ring_ptr++;
3405
3406 /*
3407 * Update request index to mailbox4 (Request Queue In).
3408 * The mmiowb() ensures that this write is ordered with writes by other
3409 * CPUs. Without the mmiowb(), it is possible for the following:
3410 * CPUA posts write of index 5 to mailbox4
3411 * CPUA releases host lock
3412 * CPUB acquires host lock
3413 * CPUB posts write of index 6 to mailbox4
3414 * On PCI bus, order reverses and write of 6 posts, then index 5,
3415 * causing chip to issue full queue of stale commands
3416 * The mmiowb() prevents future writes from crossing the barrier.
3417 * See Documentation/DocBook/deviceiobook.tmpl for more information.
3418 */
3419 WRT_REG_WORD(&reg->mailbox4, ha->req_ring_index);
3420 mmiowb();
3421
3422 LEAVE("qla1280_isp_cmd");
3423}
3424
3425/****************************************************************************/
3426/* Interrupt Service Routine. */
3427/****************************************************************************/
3428
3429/****************************************************************************
3430 * qla1280_isr
3431 * Calls I/O done on command completion.
3432 *
3433 * Input:
3434 * ha = adapter block pointer.
3435 * done_q = done queue.
3436 ****************************************************************************/
3437static void
3438qla1280_isr(struct scsi_qla_host *ha, struct list_head *done_q)
3439{
3440 struct device_reg __iomem *reg = ha->iobase;
3441 struct response *pkt;
3442 struct srb *sp = NULL;
3443 uint16_t mailbox[MAILBOX_REGISTER_COUNT];
3444 uint16_t *wptr;
3445 uint32_t index;
3446 u16 istatus;
3447
3448 ENTER("qla1280_isr");
3449
3450 istatus = RD_REG_WORD(&reg->istatus);
3451 if (!(istatus & (RISC_INT | PCI_INT)))
3452 return;
3453
3454 /* Save mailbox register 5 */
3455 mailbox[5] = RD_REG_WORD(&reg->mailbox5);
3456
3457 /* Check for mailbox interrupt. */
3458
3459 mailbox[0] = RD_REG_WORD_dmasync(&reg->semaphore);
3460
3461 if (mailbox[0] & BIT_0) {
3462 /* Get mailbox data. */
3463 /* dprintk(1, "qla1280_isr: In Get mailbox data \n"); */
3464
3465 wptr = &mailbox[0];
3466 *wptr++ = RD_REG_WORD(&reg->mailbox0);
3467 *wptr++ = RD_REG_WORD(&reg->mailbox1);
3468 *wptr = RD_REG_WORD(&reg->mailbox2);
3469 if (mailbox[0] != MBA_SCSI_COMPLETION) {
3470 wptr++;
3471 *wptr++ = RD_REG_WORD(&reg->mailbox3);
3472 *wptr++ = RD_REG_WORD(&reg->mailbox4);
3473 wptr++;
3474 *wptr++ = RD_REG_WORD(&reg->mailbox6);
3475 *wptr = RD_REG_WORD(&reg->mailbox7);
3476 }
3477
3478 /* Release mailbox registers. */
3479
3480 WRT_REG_WORD(&reg->semaphore, 0);
3481 WRT_REG_WORD(&reg->host_cmd, HC_CLR_RISC_INT);
3482
3483 dprintk(5, "qla1280_isr: mailbox interrupt mailbox[0] = 0x%x",
3484 mailbox[0]);
3485
3486 /* Handle asynchronous event */
3487 switch (mailbox[0]) {
3488 case MBA_SCSI_COMPLETION: /* Response completion */
3489 dprintk(5, "qla1280_isr: mailbox SCSI response "
3490 "completion\n");
3491
3492 if (ha->flags.online) {
3493 /* Get outstanding command index. */
3494 index = mailbox[2] << 16 | mailbox[1];
3495
3496 /* Validate handle. */
3497 if (index < MAX_OUTSTANDING_COMMANDS)
3498 sp = ha->outstanding_cmds[index];
3499 else
3500 sp = NULL;
3501
3502 if (sp) {
3503 /* Free outstanding command slot. */
3504 ha->outstanding_cmds[index] = NULL;
3505
3506 /* Save ISP completion status */
3507 CMD_RESULT(sp->cmd) = 0;
3508
3509 /* Place block on done queue */
3510 list_add_tail(&sp->list, done_q);
3511 } else {
3512 /*
3513 * If we get here we have a real problem!
3514 */
3515 printk(KERN_WARNING
3516 "qla1280: ISP invalid handle");
3517 }
3518 }
3519 break;
3520
3521 case MBA_BUS_RESET: /* SCSI Bus Reset */
3522 ha->flags.reset_marker = 1;
3523 index = mailbox[6] & BIT_0;
3524 ha->bus_settings[index].reset_marker = 1;
3525
3526 printk(KERN_DEBUG "qla1280_isr(): index %i "
3527 "asynchronous BUS_RESET\n", index);
3528 break;
3529
3530 case MBA_SYSTEM_ERR: /* System Error */
3531 printk(KERN_WARNING
3532 "qla1280: ISP System Error - mbx1=%xh, mbx2="
3533 "%xh, mbx3=%xh\n", mailbox[1], mailbox[2],
3534 mailbox[3]);
3535 break;
3536
3537 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
3538 printk(KERN_WARNING
3539 "qla1280: ISP Request Transfer Error\n");
3540 break;
3541
3542 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
3543 printk(KERN_WARNING
3544 "qla1280: ISP Response Transfer Error\n");
3545 break;
3546
3547 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
3548 dprintk(2, "qla1280_isr: asynchronous WAKEUP_THRES\n");
3549 break;
3550
3551 case MBA_TIMEOUT_RESET: /* Execution Timeout Reset */
3552 dprintk(2,
3553 "qla1280_isr: asynchronous TIMEOUT_RESET\n");
3554 break;
3555
3556 case MBA_DEVICE_RESET: /* Bus Device Reset */
3557 printk(KERN_INFO "qla1280_isr(): asynchronous "
3558 "BUS_DEVICE_RESET\n");
3559
3560 ha->flags.reset_marker = 1;
3561 index = mailbox[6] & BIT_0;
3562 ha->bus_settings[index].reset_marker = 1;
3563 break;
3564
3565 case MBA_BUS_MODE_CHANGE:
3566 dprintk(2,
3567 "qla1280_isr: asynchronous BUS_MODE_CHANGE\n");
3568 break;
3569
3570 default:
3571 /* dprintk(1, "qla1280_isr: default case of switch MB \n"); */
3572 if (mailbox[0] < MBA_ASYNC_EVENT) {
3573 wptr = &mailbox[0];
3574 memcpy((uint16_t *) ha->mailbox_out, wptr,
3575 MAILBOX_REGISTER_COUNT *
3576 sizeof(uint16_t));
3577
3578 if(ha->mailbox_wait != NULL)
3579 complete(ha->mailbox_wait);
3580 }
3581 break;
3582 }
3583 } else {
3584 WRT_REG_WORD(&reg->host_cmd, HC_CLR_RISC_INT);
3585 }
3586
3587 /*
3588 * We will receive interrupts during mailbox testing prior to
3589 * the card being marked online, hence the double check.
3590 */
3591 if (!(ha->flags.online && !ha->mailbox_wait)) {
3592 dprintk(2, "qla1280_isr: Response pointer Error\n");
3593 goto out;
3594 }
3595
3596 if (mailbox[5] >= RESPONSE_ENTRY_CNT)
3597 goto out;
3598
3599 while (ha->rsp_ring_index != mailbox[5]) {
3600 pkt = ha->response_ring_ptr;
3601
3602 dprintk(5, "qla1280_isr: ha->rsp_ring_index = 0x%x, mailbox[5]"
3603 " = 0x%x\n", ha->rsp_ring_index, mailbox[5]);
3604 dprintk(5,"qla1280_isr: response packet data\n");
3605 qla1280_dump_buffer(5, (char *)pkt, RESPONSE_ENTRY_SIZE);
3606
3607 if (pkt->entry_type == STATUS_TYPE) {
3608 if ((le16_to_cpu(pkt->scsi_status) & 0xff)
3609 || pkt->comp_status || pkt->entry_status) {
3610 dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
3611 "0x%x mailbox[5] = 0x%x, comp_status "
3612 "= 0x%x, scsi_status = 0x%x\n",
3613 ha->rsp_ring_index, mailbox[5],
3614 le16_to_cpu(pkt->comp_status),
3615 le16_to_cpu(pkt->scsi_status));
3616 }
3617 } else {
3618 dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
3619 "0x%x, mailbox[5] = 0x%x\n",
3620 ha->rsp_ring_index, mailbox[5]);
3621 dprintk(2, "qla1280_isr: response packet data\n");
3622 qla1280_dump_buffer(2, (char *)pkt,
3623 RESPONSE_ENTRY_SIZE);
3624 }
3625
3626 if (pkt->entry_type == STATUS_TYPE || pkt->entry_status) {
3627 dprintk(2, "status: Cmd %p, handle %i\n",
3628 ha->outstanding_cmds[pkt->handle]->cmd,
3629 pkt->handle);
3630 if (pkt->entry_type == STATUS_TYPE)
3631 qla1280_status_entry(ha, pkt, done_q);
3632 else
3633 qla1280_error_entry(ha, pkt, done_q);
3634 /* Adjust ring index. */
3635 ha->rsp_ring_index++;
3636 if (ha->rsp_ring_index == RESPONSE_ENTRY_CNT) {
3637 ha->rsp_ring_index = 0;
3638 ha->response_ring_ptr = ha->response_ring;
3639 } else
3640 ha->response_ring_ptr++;
3641 WRT_REG_WORD(&reg->mailbox5, ha->rsp_ring_index);
3642 }
3643 }
3644
3645 out:
3646 LEAVE("qla1280_isr");
3647}
3648
3649/*
3650 * qla1280_rst_aen
3651 * Processes asynchronous reset.
3652 *
3653 * Input:
3654 * ha = adapter block pointer.
3655 */
3656static void
3657qla1280_rst_aen(struct scsi_qla_host *ha)
3658{
3659 uint8_t bus;
3660
3661 ENTER("qla1280_rst_aen");
3662
3663 if (ha->flags.online && !ha->flags.reset_active &&
3664 !ha->flags.abort_isp_active) {
3665 ha->flags.reset_active = 1;
3666 while (ha->flags.reset_marker) {
3667 /* Issue marker command. */
3668 ha->flags.reset_marker = 0;
3669 for (bus = 0; bus < ha->ports &&
3670 !ha->flags.reset_marker; bus++) {
3671 if (ha->bus_settings[bus].reset_marker) {
3672 ha->bus_settings[bus].reset_marker = 0;
3673 qla1280_marker(ha, bus, 0, 0,
3674 MK_SYNC_ALL);
3675 }
3676 }
3677 }
3678 }
3679
3680 LEAVE("qla1280_rst_aen");
3681}
3682
3683
Linus Torvalds1da177e2005-04-16 15:20:36 -07003684/*
3685 * qla1280_status_entry
3686 * Processes received ISP status entry.
3687 *
3688 * Input:
3689 * ha = adapter block pointer.
3690 * pkt = entry pointer.
3691 * done_q = done queue.
3692 */
3693static void
3694qla1280_status_entry(struct scsi_qla_host *ha, struct response *pkt,
3695 struct list_head *done_q)
3696{
3697 unsigned int bus, target, lun;
3698 int sense_sz;
3699 struct srb *sp;
3700 struct scsi_cmnd *cmd;
3701 uint32_t handle = le32_to_cpu(pkt->handle);
3702 uint16_t scsi_status = le16_to_cpu(pkt->scsi_status);
3703 uint16_t comp_status = le16_to_cpu(pkt->comp_status);
3704
3705 ENTER("qla1280_status_entry");
3706
3707 /* Validate handle. */
3708 if (handle < MAX_OUTSTANDING_COMMANDS)
3709 sp = ha->outstanding_cmds[handle];
3710 else
3711 sp = NULL;
3712
3713 if (!sp) {
3714 printk(KERN_WARNING "qla1280: Status Entry invalid handle\n");
3715 goto out;
3716 }
3717
3718 /* Free outstanding command slot. */
3719 ha->outstanding_cmds[handle] = NULL;
3720
3721 cmd = sp->cmd;
3722
3723 /* Generate LU queue on cntrl, target, LUN */
3724 bus = SCSI_BUS_32(cmd);
3725 target = SCSI_TCN_32(cmd);
3726 lun = SCSI_LUN_32(cmd);
3727
3728 if (comp_status || scsi_status) {
3729 dprintk(3, "scsi: comp_status = 0x%x, scsi_status = "
3730 "0x%x, handle = 0x%x\n", comp_status,
3731 scsi_status, handle);
3732 }
3733
Jeremy Higdon 7d0e11f2005-05-01 05:18:48 -07003734 /* Target busy or queue full */
3735 if ((scsi_status & 0xFF) == SAM_STAT_TASK_SET_FULL ||
3736 (scsi_status & 0xFF) == SAM_STAT_BUSY) {
3737 CMD_RESULT(cmd) = scsi_status & 0xff;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003738 } else {
3739
3740 /* Save ISP completion status */
3741 CMD_RESULT(cmd) = qla1280_return_status(pkt, cmd);
3742
Christoph Hellwig d6db3e8d2005-07-04 17:48:36 +02003743 if (scsi_status & SAM_STAT_CHECK_CONDITION) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003744 if (comp_status != CS_ARS_FAILED) {
3745 uint16_t req_sense_length =
3746 le16_to_cpu(pkt->req_sense_length);
3747 if (req_sense_length < CMD_SNSLEN(cmd))
3748 sense_sz = req_sense_length;
3749 else
3750 /*
3751 * scsi_cmnd->sense_buffer is
3752 * 64 bytes, why only copy 63?
3753 * This looks wrong! /Jes
3754 */
3755 sense_sz = CMD_SNSLEN(cmd) - 1;
3756
3757 memcpy(cmd->sense_buffer,
3758 &pkt->req_sense_data, sense_sz);
3759 } else
3760 sense_sz = 0;
3761 memset(cmd->sense_buffer + sense_sz, 0,
3762 sizeof(cmd->sense_buffer) - sense_sz);
3763
3764 dprintk(2, "qla1280_status_entry: Check "
3765 "condition Sense data, b %i, t %i, "
3766 "l %i\n", bus, target, lun);
3767 if (sense_sz)
3768 qla1280_dump_buffer(2,
3769 (char *)cmd->sense_buffer,
3770 sense_sz);
3771 }
3772 }
3773
3774 /* Place command on done queue. */
3775 list_add_tail(&sp->list, done_q);
3776 out:
3777 LEAVE("qla1280_status_entry");
3778}
3779
3780/*
3781 * qla1280_error_entry
3782 * Processes error entry.
3783 *
3784 * Input:
3785 * ha = adapter block pointer.
3786 * pkt = entry pointer.
3787 * done_q = done queue.
3788 */
3789static void
3790qla1280_error_entry(struct scsi_qla_host *ha, struct response *pkt,
3791 struct list_head *done_q)
3792{
3793 struct srb *sp;
3794 uint32_t handle = le32_to_cpu(pkt->handle);
3795
3796 ENTER("qla1280_error_entry");
3797
3798 if (pkt->entry_status & BIT_3)
3799 dprintk(2, "qla1280_error_entry: BAD PAYLOAD flag error\n");
3800 else if (pkt->entry_status & BIT_2)
3801 dprintk(2, "qla1280_error_entry: BAD HEADER flag error\n");
3802 else if (pkt->entry_status & BIT_1)
3803 dprintk(2, "qla1280_error_entry: FULL flag error\n");
3804 else
3805 dprintk(2, "qla1280_error_entry: UNKNOWN flag error\n");
3806
3807 /* Validate handle. */
3808 if (handle < MAX_OUTSTANDING_COMMANDS)
3809 sp = ha->outstanding_cmds[handle];
3810 else
3811 sp = NULL;
3812
3813 if (sp) {
3814 /* Free outstanding command slot. */
3815 ha->outstanding_cmds[handle] = NULL;
3816
3817 /* Bad payload or header */
3818 if (pkt->entry_status & (BIT_3 + BIT_2)) {
3819 /* Bad payload or header, set error status. */
3820 /* CMD_RESULT(sp->cmd) = CS_BAD_PAYLOAD; */
3821 CMD_RESULT(sp->cmd) = DID_ERROR << 16;
3822 } else if (pkt->entry_status & BIT_1) { /* FULL flag */
3823 CMD_RESULT(sp->cmd) = DID_BUS_BUSY << 16;
3824 } else {
3825 /* Set error status. */
3826 CMD_RESULT(sp->cmd) = DID_ERROR << 16;
3827 }
3828
3829 /* Place command on done queue. */
3830 list_add_tail(&sp->list, done_q);
3831 }
3832#ifdef QLA_64BIT_PTR
3833 else if (pkt->entry_type == COMMAND_A64_TYPE) {
3834 printk(KERN_WARNING "!qla1280: Error Entry invalid handle");
3835 }
3836#endif
3837
3838 LEAVE("qla1280_error_entry");
3839}
3840
3841/*
3842 * qla1280_abort_isp
3843 * Resets ISP and aborts all outstanding commands.
3844 *
3845 * Input:
3846 * ha = adapter block pointer.
3847 *
3848 * Returns:
3849 * 0 = success
3850 */
3851static int
3852qla1280_abort_isp(struct scsi_qla_host *ha)
3853{
3854 struct device_reg __iomem *reg = ha->iobase;
3855 struct srb *sp;
3856 int status = 0;
3857 int cnt;
3858 int bus;
3859
3860 ENTER("qla1280_abort_isp");
3861
3862 if (ha->flags.abort_isp_active || !ha->flags.online)
3863 goto out;
3864
3865 ha->flags.abort_isp_active = 1;
3866
3867 /* Disable ISP interrupts. */
3868 qla1280_disable_intrs(ha);
3869 WRT_REG_WORD(&reg->host_cmd, HC_PAUSE_RISC);
3870 RD_REG_WORD(&reg->id_l);
3871
3872 printk(KERN_INFO "scsi(%li): dequeuing outstanding commands\n",
3873 ha->host_no);
3874 /* Dequeue all commands in outstanding command list. */
3875 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
3876 struct scsi_cmnd *cmd;
3877 sp = ha->outstanding_cmds[cnt];
3878 if (sp) {
3879
3880 cmd = sp->cmd;
3881 CMD_RESULT(cmd) = DID_RESET << 16;
3882
3883 sp->cmd = NULL;
3884 ha->outstanding_cmds[cnt] = NULL;
3885
3886 (*cmd->scsi_done)(cmd);
3887
3888 sp->flags = 0;
3889 }
3890 }
3891
3892 status = qla1280_load_firmware(ha);
3893 if (status)
3894 goto out;
3895
3896 /* Setup adapter based on NVRAM parameters. */
3897 qla1280_nvram_config (ha);
3898
3899 status = qla1280_init_rings(ha);
3900 if (status)
3901 goto out;
3902
3903 /* Issue SCSI reset. */
3904 for (bus = 0; bus < ha->ports; bus++)
3905 qla1280_bus_reset(ha, bus);
3906
3907 ha->flags.abort_isp_active = 0;
3908 out:
3909 if (status) {
3910 printk(KERN_WARNING
3911 "qla1280: ISP error recovery failed, board disabled");
3912 qla1280_reset_adapter(ha);
3913 dprintk(2, "qla1280_abort_isp: **** FAILED ****\n");
3914 }
3915
3916 LEAVE("qla1280_abort_isp");
3917 return status;
3918}
3919
3920
3921/*
3922 * qla1280_debounce_register
3923 * Debounce register.
3924 *
3925 * Input:
3926 * port = register address.
3927 *
3928 * Returns:
3929 * register value.
3930 */
3931static u16
3932qla1280_debounce_register(volatile u16 __iomem * addr)
3933{
3934 volatile u16 ret;
3935 volatile u16 ret2;
3936
3937 ret = RD_REG_WORD(addr);
3938 ret2 = RD_REG_WORD(addr);
3939
3940 if (ret == ret2)
3941 return ret;
3942
3943 do {
3944 cpu_relax();
3945 ret = RD_REG_WORD(addr);
3946 ret2 = RD_REG_WORD(addr);
3947 } while (ret != ret2);
3948
3949 return ret;
3950}
3951
3952
3953/************************************************************************
3954 * qla1280_check_for_dead_scsi_bus *
3955 * *
3956 * This routine checks for a dead SCSI bus *
3957 ************************************************************************/
3958#define SET_SXP_BANK 0x0100
3959#define SCSI_PHASE_INVALID 0x87FF
3960static int
3961qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *ha, unsigned int bus)
3962{
3963 uint16_t config_reg, scsi_control;
3964 struct device_reg __iomem *reg = ha->iobase;
3965
3966 if (ha->bus_settings[bus].scsi_bus_dead) {
3967 WRT_REG_WORD(&reg->host_cmd, HC_PAUSE_RISC);
3968 config_reg = RD_REG_WORD(&reg->cfg_1);
3969 WRT_REG_WORD(&reg->cfg_1, SET_SXP_BANK);
3970 scsi_control = RD_REG_WORD(&reg->scsiControlPins);
3971 WRT_REG_WORD(&reg->cfg_1, config_reg);
3972 WRT_REG_WORD(&reg->host_cmd, HC_RELEASE_RISC);
3973
3974 if (scsi_control == SCSI_PHASE_INVALID) {
3975 ha->bus_settings[bus].scsi_bus_dead = 1;
3976#if 0
3977 CMD_RESULT(cp) = DID_NO_CONNECT << 16;
3978 CMD_HANDLE(cp) = INVALID_HANDLE;
3979 /* ha->actthreads--; */
3980
3981 (*(cp)->scsi_done)(cp);
3982#endif
3983 return 1; /* bus is dead */
3984 } else {
3985 ha->bus_settings[bus].scsi_bus_dead = 0;
3986 ha->bus_settings[bus].failed_reset_count = 0;
3987 }
3988 }
3989 return 0; /* bus is not dead */
3990}
3991
3992static void
3993qla1280_get_target_parameters(struct scsi_qla_host *ha,
3994 struct scsi_device *device)
3995{
3996 uint16_t mb[MAILBOX_REGISTER_COUNT];
3997 int bus, target, lun;
3998
3999 bus = device->channel;
4000 target = device->id;
4001 lun = device->lun;
4002
4003
4004 mb[0] = MBC_GET_TARGET_PARAMETERS;
4005 mb[1] = (uint16_t) (bus ? target | BIT_7 : target);
4006 mb[1] <<= 8;
4007 qla1280_mailbox_command(ha, BIT_6 | BIT_3 | BIT_2 | BIT_1 | BIT_0,
4008 &mb[0]);
4009
4010 printk(KERN_INFO "scsi(%li:%d:%d:%d):", ha->host_no, bus, target, lun);
4011
4012 if (mb[3] != 0) {
4013 printk(" Sync: period %d, offset %d",
4014 (mb[3] & 0xff), (mb[3] >> 8));
4015 if (mb[2] & BIT_13)
4016 printk(", Wide");
4017 if ((mb[2] & BIT_5) && ((mb[6] >> 8) & 0xff) >= 2)
4018 printk(", DT");
4019 } else
4020 printk(" Async");
4021
Jes Sorensen2dbb04c2006-01-16 11:49:29 -05004022 if (device->simple_tags)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004023 printk(", Tagged queuing: depth %d", device->queue_depth);
4024 printk("\n");
4025}
4026
4027
4028#if DEBUG_QLA1280
4029static void
4030__qla1280_dump_buffer(char *b, int size)
4031{
4032 int cnt;
4033 u8 c;
4034
4035 printk(KERN_DEBUG " 0 1 2 3 4 5 6 7 8 9 Ah "
4036 "Bh Ch Dh Eh Fh\n");
4037 printk(KERN_DEBUG "---------------------------------------------"
4038 "------------------\n");
4039
4040 for (cnt = 0; cnt < size;) {
4041 c = *b++;
4042
4043 printk("0x%02x", c);
4044 cnt++;
4045 if (!(cnt % 16))
4046 printk("\n");
4047 else
4048 printk(" ");
4049 }
4050 if (cnt % 16)
4051 printk("\n");
4052}
4053
4054/**************************************************************************
4055 * ql1280_print_scsi_cmd
4056 *
4057 **************************************************************************/
4058static void
4059__qla1280_print_scsi_cmd(struct scsi_cmnd *cmd)
4060{
4061 struct scsi_qla_host *ha;
4062 struct Scsi_Host *host = CMD_HOST(cmd);
4063 struct srb *sp;
4064 /* struct scatterlist *sg; */
4065
4066 int i;
4067 ha = (struct scsi_qla_host *)host->hostdata;
4068
4069 sp = (struct srb *)CMD_SP(cmd);
4070 printk("SCSI Command @= 0x%p, Handle=0x%p\n", cmd, CMD_HANDLE(cmd));
4071 printk(" chan=%d, target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n",
4072 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd),
4073 CMD_CDBLEN(cmd));
4074 printk(" CDB = ");
4075 for (i = 0; i < cmd->cmd_len; i++) {
4076 printk("0x%02x ", cmd->cmnd[i]);
4077 }
4078 printk(" seg_cnt =%d\n", cmd->use_sg);
4079 printk(" request buffer=0x%p, request buffer len=0x%x\n",
4080 cmd->request_buffer, cmd->request_bufflen);
4081 /* if (cmd->use_sg)
4082 {
4083 sg = (struct scatterlist *) cmd->request_buffer;
4084 printk(" SG buffer: \n");
4085 qla1280_dump_buffer(1, (char *)sg, (cmd->use_sg*sizeof(struct scatterlist)));
4086 } */
4087 printk(" tag=%d, transfersize=0x%x \n",
4088 cmd->tag, cmd->transfersize);
4089 printk(" Pid=%li, SP=0x%p\n", cmd->pid, CMD_SP(cmd));
4090 printk(" underflow size = 0x%x, direction=0x%x\n",
4091 cmd->underflow, cmd->sc_data_direction);
4092}
4093
4094/**************************************************************************
4095 * ql1280_dump_device
4096 *
4097 **************************************************************************/
4098static void
4099ql1280_dump_device(struct scsi_qla_host *ha)
4100{
4101
4102 struct scsi_cmnd *cp;
4103 struct srb *sp;
4104 int i;
4105
4106 printk(KERN_DEBUG "Outstanding Commands on controller:\n");
4107
4108 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
4109 if ((sp = ha->outstanding_cmds[i]) == NULL)
4110 continue;
4111 if ((cp = sp->cmd) == NULL)
4112 continue;
4113 qla1280_print_scsi_cmd(1, cp);
4114 }
4115}
4116#endif
4117
4118
4119enum tokens {
4120 TOKEN_NVRAM,
4121 TOKEN_SYNC,
4122 TOKEN_WIDE,
4123 TOKEN_PPR,
4124 TOKEN_VERBOSE,
4125 TOKEN_DEBUG,
4126};
4127
4128struct setup_tokens {
4129 char *token;
4130 int val;
4131};
4132
4133static struct setup_tokens setup_token[] __initdata =
4134{
4135 { "nvram", TOKEN_NVRAM },
4136 { "sync", TOKEN_SYNC },
4137 { "wide", TOKEN_WIDE },
4138 { "ppr", TOKEN_PPR },
4139 { "verbose", TOKEN_VERBOSE },
4140 { "debug", TOKEN_DEBUG },
4141};
4142
4143
4144/**************************************************************************
4145 * qla1280_setup
4146 *
4147 * Handle boot parameters. This really needs to be changed so one
4148 * can specify per adapter parameters.
4149 **************************************************************************/
4150static int __init
4151qla1280_setup(char *s)
4152{
4153 char *cp, *ptr;
4154 unsigned long val;
4155 int toke;
4156
4157 cp = s;
4158
4159 while (cp && (ptr = strchr(cp, ':'))) {
4160 ptr++;
4161 if (!strcmp(ptr, "yes")) {
4162 val = 0x10000;
4163 ptr += 3;
4164 } else if (!strcmp(ptr, "no")) {
4165 val = 0;
4166 ptr += 2;
4167 } else
4168 val = simple_strtoul(ptr, &ptr, 0);
4169
4170 switch ((toke = qla1280_get_token(cp))) {
4171 case TOKEN_NVRAM:
4172 if (!val)
4173 driver_setup.no_nvram = 1;
4174 break;
4175 case TOKEN_SYNC:
4176 if (!val)
4177 driver_setup.no_sync = 1;
4178 else if (val != 0x10000)
4179 driver_setup.sync_mask = val;
4180 break;
4181 case TOKEN_WIDE:
4182 if (!val)
4183 driver_setup.no_wide = 1;
4184 else if (val != 0x10000)
4185 driver_setup.wide_mask = val;
4186 break;
4187 case TOKEN_PPR:
4188 if (!val)
4189 driver_setup.no_ppr = 1;
4190 else if (val != 0x10000)
4191 driver_setup.ppr_mask = val;
4192 break;
4193 case TOKEN_VERBOSE:
4194 qla1280_verbose = val;
4195 break;
4196 default:
4197 printk(KERN_INFO "qla1280: unknown boot option %s\n",
4198 cp);
4199 }
4200
4201 cp = strchr(ptr, ';');
4202 if (cp)
4203 cp++;
4204 else {
4205 break;
4206 }
4207 }
4208 return 1;
4209}
4210
4211
Randy Dunlapf58f8312006-06-30 02:33:14 -07004212static int __init
Linus Torvalds1da177e2005-04-16 15:20:36 -07004213qla1280_get_token(char *str)
4214{
4215 char *sep;
4216 long ret = -1;
Tobias Klauser6391a112006-06-08 22:23:48 -07004217 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004218
4219 sep = strchr(str, ':');
4220
4221 if (sep) {
Tobias Klauser6391a112006-06-08 22:23:48 -07004222 for (i = 0; i < ARRAY_SIZE(setup_token); i++) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07004223 if (!strncmp(setup_token[i].token, str, (sep - str))) {
4224 ret = setup_token[i].val;
4225 break;
4226 }
4227 }
4228 }
4229
4230 return ret;
4231}
4232
Jes Sorensen2dbb04c2006-01-16 11:49:29 -05004233
Linus Torvalds1da177e2005-04-16 15:20:36 -07004234static struct scsi_host_template qla1280_driver_template = {
4235 .module = THIS_MODULE,
4236 .proc_name = "qla1280",
4237 .name = "Qlogic ISP 1280/12160",
4238 .info = qla1280_info,
4239 .slave_configure = qla1280_slave_configure,
4240 .queuecommand = qla1280_queuecommand,
4241 .eh_abort_handler = qla1280_eh_abort,
4242 .eh_device_reset_handler= qla1280_eh_device_reset,
4243 .eh_bus_reset_handler = qla1280_eh_bus_reset,
4244 .eh_host_reset_handler = qla1280_eh_adapter_reset,
4245 .bios_param = qla1280_biosparam,
4246 .can_queue = 0xfffff,
4247 .this_id = -1,
4248 .sg_tablesize = SG_ALL,
4249 .cmd_per_lun = 1,
4250 .use_clustering = ENABLE_CLUSTERING,
4251};
Jes Sorensen2dbb04c2006-01-16 11:49:29 -05004252
Linus Torvalds1da177e2005-04-16 15:20:36 -07004253
4254static int __devinit
4255qla1280_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
4256{
4257 int devnum = id->driver_data;
4258 struct qla_boards *bdp = &ql1280_board_tbl[devnum];
4259 struct Scsi_Host *host;
4260 struct scsi_qla_host *ha;
4261 int error = -ENODEV;
4262
4263 /* Bypass all AMI SUBSYS VENDOR IDs */
4264 if (pdev->subsystem_vendor == PCI_VENDOR_ID_AMI) {
4265 printk(KERN_INFO
4266 "qla1280: Skipping AMI SubSys Vendor ID Chip\n");
4267 goto error;
4268 }
4269
4270 printk(KERN_INFO "qla1280: %s found on PCI bus %i, dev %i\n",
4271 bdp->name, pdev->bus->number, PCI_SLOT(pdev->devfn));
4272
4273 if (pci_enable_device(pdev)) {
4274 printk(KERN_WARNING
4275 "qla1280: Failed to enabled pci device, aborting.\n");
4276 goto error;
4277 }
4278
4279 pci_set_master(pdev);
4280
4281 error = -ENOMEM;
4282 host = scsi_host_alloc(&qla1280_driver_template, sizeof(*ha));
4283 if (!host) {
4284 printk(KERN_WARNING
4285 "qla1280: Failed to register host, aborting.\n");
4286 goto error_disable_device;
4287 }
4288
4289 ha = (struct scsi_qla_host *)host->hostdata;
4290 memset(ha, 0, sizeof(struct scsi_qla_host));
4291
4292 ha->pdev = pdev;
4293 ha->devnum = devnum; /* specifies microcode load address */
4294
4295#ifdef QLA_64BIT_PTR
Matthias Kaehlckeb22c9d92007-04-17 09:58:36 +02004296 if (pci_set_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
Matthias Gehre910638a2006-03-28 01:56:48 -08004297 if (pci_set_dma_mask(ha->pdev, DMA_32BIT_MASK)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07004298 printk(KERN_WARNING "scsi(%li): Unable to set a "
Christoph Hellwig 2b55cac2005-07-04 17:48:30 +02004299 "suitable DMA mask - aborting\n", ha->host_no);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004300 error = -ENODEV;
4301 goto error_free_irq;
4302 }
4303 } else
4304 dprintk(2, "scsi(%li): 64 Bit PCI Addressing Enabled\n",
4305 ha->host_no);
4306#else
Matthias Gehre910638a2006-03-28 01:56:48 -08004307 if (pci_set_dma_mask(ha->pdev, DMA_32BIT_MASK)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07004308 printk(KERN_WARNING "scsi(%li): Unable to set a "
Christoph Hellwig 2b55cac2005-07-04 17:48:30 +02004309 "suitable DMA mask - aborting\n", ha->host_no);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004310 error = -ENODEV;
4311 goto error_free_irq;
4312 }
4313#endif
4314
4315 ha->request_ring = pci_alloc_consistent(ha->pdev,
Christoph Hellwig 2b55cac2005-07-04 17:48:30 +02004316 ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)),
Linus Torvalds1da177e2005-04-16 15:20:36 -07004317 &ha->request_dma);
4318 if (!ha->request_ring) {
4319 printk(KERN_INFO "qla1280: Failed to get request memory\n");
4320 goto error_put_host;
4321 }
4322
4323 ha->response_ring = pci_alloc_consistent(ha->pdev,
Christoph Hellwig 2b55cac2005-07-04 17:48:30 +02004324 ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)),
Linus Torvalds1da177e2005-04-16 15:20:36 -07004325 &ha->response_dma);
4326 if (!ha->response_ring) {
4327 printk(KERN_INFO "qla1280: Failed to get response memory\n");
4328 goto error_free_request_ring;
4329 }
4330
4331 ha->ports = bdp->numPorts;
4332
4333 ha->host = host;
4334 ha->host_no = host->host_no;
4335
4336 host->irq = pdev->irq;
4337 host->max_channel = bdp->numPorts - 1;
4338 host->max_lun = MAX_LUNS - 1;
4339 host->max_id = MAX_TARGETS;
4340 host->max_sectors = 1024;
4341 host->unique_id = host->host_no;
4342
Linus Torvalds1da177e2005-04-16 15:20:36 -07004343 error = -ENODEV;
4344
4345#if MEMORY_MAPPED_IO
4346 ha->mmpbase = ioremap(pci_resource_start(ha->pdev, 1),
4347 pci_resource_len(ha->pdev, 1));
4348 if (!ha->mmpbase) {
4349 printk(KERN_INFO "qla1280: Unable to map I/O memory\n");
4350 goto error_free_response_ring;
4351 }
4352
4353 host->base = (unsigned long)ha->mmpbase;
4354 ha->iobase = (struct device_reg __iomem *)ha->mmpbase;
4355#else
4356 host->io_port = pci_resource_start(ha->pdev, 0);
4357 if (!request_region(host->io_port, 0xff, "qla1280")) {
4358 printk(KERN_INFO "qla1280: Failed to reserve i/o region "
4359 "0x%04lx-0x%04lx - already in use\n",
4360 host->io_port, host->io_port + 0xff);
4361 goto error_free_response_ring;
4362 }
4363
4364 ha->iobase = (struct device_reg *)host->io_port;
4365#endif
4366
4367 INIT_LIST_HEAD(&ha->done_q);
4368
4369 /* Disable ISP interrupts. */
4370 qla1280_disable_intrs(ha);
4371
Thomas Gleixner1d6f3592006-07-01 19:29:42 -07004372 if (request_irq(pdev->irq, qla1280_intr_handler, IRQF_SHARED,
Linus Torvalds1da177e2005-04-16 15:20:36 -07004373 "qla1280", ha)) {
4374 printk("qla1280 : Failed to reserve interrupt %d already "
4375 "in use\n", pdev->irq);
4376 goto error_release_region;
4377 }
4378
4379 /* load the F/W, read paramaters, and init the H/W */
4380 if (qla1280_initialize_adapter(ha)) {
4381 printk(KERN_INFO "qla1x160: Failed to initialize adapter\n");
4382 goto error_free_irq;
4383 }
4384
4385 /* set our host ID (need to do something about our two IDs) */
4386 host->this_id = ha->bus_settings[0].id;
4387
4388 pci_set_drvdata(pdev, host);
4389
Linus Torvalds1da177e2005-04-16 15:20:36 -07004390 error = scsi_add_host(host, &pdev->dev);
4391 if (error)
4392 goto error_disable_adapter;
4393 scsi_scan_host(host);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004394
4395 return 0;
4396
Linus Torvalds1da177e2005-04-16 15:20:36 -07004397 error_disable_adapter:
Christoph Hellwig 8af50dc2005-07-04 17:48:19 +02004398 qla1280_disable_intrs(ha);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004399 error_free_irq:
4400 free_irq(pdev->irq, ha);
4401 error_release_region:
4402#if MEMORY_MAPPED_IO
4403 iounmap(ha->mmpbase);
4404#else
4405 release_region(host->io_port, 0xff);
4406#endif
4407 error_free_response_ring:
4408 pci_free_consistent(ha->pdev,
Christoph Hellwig 2b55cac2005-07-04 17:48:30 +02004409 ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)),
Linus Torvalds1da177e2005-04-16 15:20:36 -07004410 ha->response_ring, ha->response_dma);
4411 error_free_request_ring:
4412 pci_free_consistent(ha->pdev,
Christoph Hellwig 2b55cac2005-07-04 17:48:30 +02004413 ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)),
Linus Torvalds1da177e2005-04-16 15:20:36 -07004414 ha->request_ring, ha->request_dma);
4415 error_put_host:
4416 scsi_host_put(host);
4417 error_disable_device:
4418 pci_disable_device(pdev);
4419 error:
4420 return error;
4421}
4422
4423
4424static void __devexit
4425qla1280_remove_one(struct pci_dev *pdev)
4426{
4427 struct Scsi_Host *host = pci_get_drvdata(pdev);
4428 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
4429
Linus Torvalds1da177e2005-04-16 15:20:36 -07004430 scsi_remove_host(host);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004431
Christoph Hellwig 8af50dc2005-07-04 17:48:19 +02004432 qla1280_disable_intrs(ha);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004433
4434 free_irq(pdev->irq, ha);
4435
4436#if MEMORY_MAPPED_IO
4437 iounmap(ha->mmpbase);
4438#else
4439 release_region(host->io_port, 0xff);
4440#endif
4441
4442 pci_free_consistent(ha->pdev,
4443 ((REQUEST_ENTRY_CNT + 1) * (sizeof(request_t))),
4444 ha->request_ring, ha->request_dma);
4445 pci_free_consistent(ha->pdev,
4446 ((RESPONSE_ENTRY_CNT + 1) * (sizeof(struct response))),
4447 ha->response_ring, ha->response_dma);
4448
4449 pci_disable_device(pdev);
4450
4451 scsi_host_put(host);
4452}
4453
Linus Torvalds1da177e2005-04-16 15:20:36 -07004454static struct pci_driver qla1280_pci_driver = {
4455 .name = "qla1280",
4456 .id_table = qla1280_pci_tbl,
4457 .probe = qla1280_probe_one,
4458 .remove = __devexit_p(qla1280_remove_one),
4459};
4460
4461static int __init
4462qla1280_init(void)
4463{
4464 if (sizeof(struct srb) > sizeof(struct scsi_pointer)) {
4465 printk(KERN_WARNING
4466 "qla1280: struct srb too big, aborting\n");
4467 return -EINVAL;
4468 }
4469
4470#ifdef MODULE
4471 /*
4472 * If we are called as a module, the qla1280 pointer may not be null
4473 * and it would point to our bootup string, just like on the lilo
4474 * command line. IF not NULL, then process this config string with
4475 * qla1280_setup
4476 *
4477 * Boot time Options
4478 * To add options at boot time add a line to your lilo.conf file like:
4479 * append="qla1280=verbose,max_tags:{{255,255,255,255},{255,255,255,255}}"
4480 * which will result in the first four devices on the first two
4481 * controllers being set to a tagged queue depth of 32.
4482 */
4483 if (qla1280)
4484 qla1280_setup(qla1280);
4485#endif
4486
Henrik Kretzschmardcbccbde2006-09-25 16:58:58 -07004487 return pci_register_driver(&qla1280_pci_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004488}
4489
4490static void __exit
4491qla1280_exit(void)
4492{
4493 pci_unregister_driver(&qla1280_pci_driver);
4494}
4495
4496module_init(qla1280_init);
4497module_exit(qla1280_exit);
4498
Linus Torvalds1da177e2005-04-16 15:20:36 -07004499
4500MODULE_AUTHOR("Qlogic & Jes Sorensen");
4501MODULE_DESCRIPTION("Qlogic ISP SCSI (qla1x80/qla1x160) driver");
4502MODULE_LICENSE("GPL");
4503MODULE_VERSION(QLA1280_VERSION);
4504
4505/*
4506 * Overrides for Emacs so that we almost follow Linus's tabbing style.
4507 * Emacs will notice this stuff at the end of the file and automatically
4508 * adjust the settings for this buffer only. This must remain at the end
4509 * of the file.
4510 * ---------------------------------------------------------------------------
4511 * Local variables:
4512 * c-basic-offset: 8
4513 * tab-width: 8
4514 * End:
4515 */