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Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski...
[linux-2.6-block.git] / drivers / scsi / qla1280.c
CommitLineData
1da177e4
LT		 1/******************************************************************************
2* QLOGIC LINUX SOFTWARE
3*
4* QLogic QLA1280 (Ultra2) and QLA12160 (Ultra3) SCSI driver
5* Copyright (C) 2000 Qlogic Corporation (www.qlogic.com)
6* Copyright (C) 2001-2004 Jes Sorensen, Wild Open Source Inc.
7* Copyright (C) 2003-2004 Christoph Hellwig
8*
9* This program is free software; you can redistribute it and/or modify it
10* under the terms of the GNU General Public License as published by the
11* Free Software Foundation; either version 2, or (at your option) any
12* later version.
13*
14* This program is distributed in the hope that it will be useful, but
15* WITHOUT ANY WARRANTY; without even the implied warranty of
16* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17* General Public License for more details.
18*
19******************************************************************************/
421e33d0 20#define QLA1280_VERSION "3.27.1"
1da177e4
LT		 21/*****************************************************************************
22 Revision History:
421e33d0
MR		 23 Rev 3.27.1, February 8, 2010, Michael Reed
24 - Retain firmware image for error recovery.
413e6e18
MR		 25 Rev 3.27, February 10, 2009, Michael Reed
26 - General code cleanup.
27 - Improve error recovery.
2dbb04c6
JS		 28 Rev 3.26, January 16, 2006 Jes Sorensen
29 - Ditch all < 2.6 support
1da177e4
LT		 30 Rev 3.25.1, February 10, 2005 Christoph Hellwig
31 - use pci_map_single to map non-S/G requests
32 - remove qla1280_proc_info
33 Rev 3.25, September 28, 2004, Christoph Hellwig
34 - add support for ISP1020/1040
35 - don't include "scsi.h" anymore for 2.6.x
36 Rev 3.24.4 June 7, 2004 Christoph Hellwig
37 - restructure firmware loading, cleanup initialization code
38 - prepare support for ISP1020/1040 chips
39 Rev 3.24.3 January 19, 2004, Jes Sorensen
40 - Handle PCI DMA mask settings correctly
41 - Correct order of error handling in probe_one, free_irq should not
42 be called if request_irq failed
43 Rev 3.24.2 January 19, 2004, James Bottomley & Andrew Vasquez
44 - Big endian fixes (James)
45 - Remove bogus IOCB content on zero data transfer commands (Andrew)
46 Rev 3.24.1 January 5, 2004, Jes Sorensen
47 - Initialize completion queue to avoid OOPS on probe
48 - Handle interrupts during mailbox testing
49 Rev 3.24 November 17, 2003, Christoph Hellwig
50 - use struct list_head for completion queue
51 - avoid old Scsi_FOO typedefs
52 - cleanup 2.4 compat glue a bit
53 - use <scsi/scsi_*.h> headers on 2.6 instead of "scsi.h"
54 - make initialization for memory mapped vs port I/O more similar
55 - remove broken pci config space manipulation
56 - kill more cruft
57 - this is an almost perfect 2.6 scsi driver now! ;)
58 Rev 3.23.39 December 17, 2003, Jes Sorensen
59 - Delete completion queue from srb if mailbox command failed to
60 to avoid qla1280_done completeting qla1280_error_action's
61 obsolete context
62 - Reduce arguments for qla1280_done
63 Rev 3.23.38 October 18, 2003, Christoph Hellwig
64 - Convert to new-style hotplugable driver for 2.6
65 - Fix missing scsi_unregister/scsi_host_put on HBA removal
66 - Kill some more cruft
67 Rev 3.23.37 October 1, 2003, Jes Sorensen
68 - Make MMIO depend on CONFIG_X86_VISWS instead of yet another
69 random CONFIG option
70 - Clean up locking in probe path
71 Rev 3.23.36 October 1, 2003, Christoph Hellwig
72 - queuecommand only ever receives new commands - clear flags
73 - Reintegrate lost fixes from Linux 2.5
74 Rev 3.23.35 August 14, 2003, Jes Sorensen
75 - Build against 2.6
76 Rev 3.23.34 July 23, 2003, Jes Sorensen
77 - Remove pointless TRUE/FALSE macros
78 - Clean up vchan handling
79 Rev 3.23.33 July 3, 2003, Jes Sorensen
80 - Don't define register access macros before define determining MMIO.
25985edc 81 This just happened to work out on ia64 but not elsewhere.
1da177e4
LT		 82 - Don't try and read from the card while it is in reset as
83 it won't respond and causes an MCA
84 Rev 3.23.32 June 23, 2003, Jes Sorensen
85 - Basic support for boot time arguments
86 Rev 3.23.31 June 8, 2003, Jes Sorensen
87 - Reduce boot time messages
88 Rev 3.23.30 June 6, 2003, Jes Sorensen
89 - Do not enable sync/wide/ppr before it has been determined
90 that the target device actually supports it
91 - Enable DMA arbitration for multi channel controllers
92 Rev 3.23.29 June 3, 2003, Jes Sorensen
93 - Port to 2.5.69
94 Rev 3.23.28 June 3, 2003, Jes Sorensen
95 - Eliminate duplicate marker commands on bus resets
96 - Handle outstanding commands appropriately on bus/device resets
97 Rev 3.23.27 May 28, 2003, Jes Sorensen
98 - Remove bogus input queue code, let the Linux SCSI layer do the work
99 - Clean up NVRAM handling, only read it once from the card
100 - Add a number of missing default nvram parameters
101 Rev 3.23.26 Beta May 28, 2003, Jes Sorensen
102 - Use completion queue for mailbox commands instead of busy wait
103 Rev 3.23.25 Beta May 27, 2003, James Bottomley
104 - Migrate to use new error handling code
105 Rev 3.23.24 Beta May 21, 2003, James Bottomley
106 - Big endian support
107 - Cleanup data direction code
108 Rev 3.23.23 Beta May 12, 2003, Jes Sorensen
109 - Switch to using MMIO instead of PIO
110 Rev 3.23.22 Beta April 15, 2003, Jes Sorensen
111 - Fix PCI parity problem with 12160 during reset.
112 Rev 3.23.21 Beta April 14, 2003, Jes Sorensen
113 - Use pci_map_page()/pci_unmap_page() instead of map_single version.
114 Rev 3.23.20 Beta April 9, 2003, Jes Sorensen
115 - Remove < 2.4.x support
116 - Introduce HOST_LOCK to make the spin lock changes portable.
117 - Remove a bunch of idiotic and unnecessary typedef's
118 - Kill all leftovers of target-mode support which never worked anyway
119 Rev 3.23.19 Beta April 11, 2002, Linus Torvalds
120 - Do qla1280_pci_config() before calling request_irq() and
121 request_region()
122 - Use pci_dma_hi32() to handle upper word of DMA addresses instead
123 of large shifts
124 - Hand correct arguments to free_irq() in case of failure
125 Rev 3.23.18 Beta April 11, 2002, Jes Sorensen
126 - Run source through Lindent and clean up the output
127 Rev 3.23.17 Beta April 11, 2002, Jes Sorensen
128 - Update SCSI firmware to qla1280 v8.15.00 and qla12160 v10.04.32
129 Rev 3.23.16 Beta March 19, 2002, Jes Sorensen
130 - Rely on mailbox commands generating interrupts - do not
131 run qla1280_isr() from ql1280_mailbox_command()
132 - Remove device_reg_t
133 - Integrate ql12160_set_target_parameters() with 1280 version
134 - Make qla1280_setup() non static
135 - Do not call qla1280_check_for_dead_scsi_bus() on every I/O request
c3af1715 136 sent to the card - this command pauses the firmware!!!
1da177e4
LT		 137 Rev 3.23.15 Beta March 19, 2002, Jes Sorensen
138 - Clean up qla1280.h - remove obsolete QL_DEBUG_LEVEL_x definitions
139 - Remove a pile of pointless and confusing (srb_t **) and
140 (scsi_lu_t *) typecasts
141 - Explicit mark that we do not use the new error handling (for now)
142 - Remove scsi_qla_host_t and use 'struct' instead
143 - Remove in_abort, watchdog_enabled, dpc, dpc_sched, bios_enabled,
144 pci_64bit_slot flags which weren't used for anything anyway
145 - Grab host->host_lock while calling qla1280_isr() from abort()
146 - Use spin_lock()/spin_unlock() in qla1280_intr_handler() - we
147 do not need to save/restore flags in the interrupt handler
148 - Enable interrupts early (before any mailbox access) in preparation
149 for cleaning up the mailbox handling
150 Rev 3.23.14 Beta March 14, 2002, Jes Sorensen
151 - Further cleanups. Remove all trace of QL_DEBUG_LEVEL_x and replace
152 it with proper use of dprintk().
153 - Make qla1280_print_scsi_cmd() and qla1280_dump_buffer() both take
154 a debug level argument to determine if data is to be printed
155 - Add KERN_* info to printk()
156 Rev 3.23.13 Beta March 14, 2002, Jes Sorensen
157 - Significant cosmetic cleanups
158 - Change debug code to use dprintk() and remove #if mess
159 Rev 3.23.12 Beta March 13, 2002, Jes Sorensen
160 - More cosmetic cleanups, fix places treating return as function
161 - use cpu_relax() in qla1280_debounce_register()
162 Rev 3.23.11 Beta March 13, 2002, Jes Sorensen
163 - Make it compile under 2.5.5
164 Rev 3.23.10 Beta October 1, 2001, Jes Sorensen
165 - Do no typecast short * to long * in QL1280BoardTbl, this
166 broke miserably on big endian boxes
167 Rev 3.23.9 Beta September 30, 2001, Jes Sorensen
168 - Remove pre 2.2 hack for checking for reentrance in interrupt handler
169 - Make data types used to receive from SCSI_{BUS,TCN,LUN}_32
170 unsigned int to match the types from struct scsi_cmnd
171 Rev 3.23.8 Beta September 29, 2001, Jes Sorensen
172 - Remove bogus timer_t typedef from qla1280.h
173 - Remove obsolete pre 2.2 PCI setup code, use proper #define's
174 for PCI_ values, call pci_set_master()
175 - Fix memleak of qla1280_buffer on module unload
176 - Only compile module parsing code #ifdef MODULE - should be
177 changed to use individual MODULE_PARM's later
178 - Remove dummy_buffer that was never modified nor printed
179 - ENTER()/LEAVE() are noops unless QL_DEBUG_LEVEL_3, hence remove
180 #ifdef QL_DEBUG_LEVEL_3/#endif around ENTER()/LEAVE() calls
181 - Remove \r from print statements, this is Linux, not DOS
182 - Remove obsolete QLA1280_{SCSILU,INTR,RING}_{LOCK,UNLOCK}
183 dummy macros
184 - Remove C++ compile hack in header file as Linux driver are not
185 supposed to be compiled as C++
186 - Kill MS_64BITS macro as it makes the code more readable
187 - Remove unnecessary flags.in_interrupts bit
188 Rev 3.23.7 Beta August 20, 2001, Jes Sorensen
189 - Dont' check for set flags on q->q_flag one by one in qla1280_next()
190 - Check whether the interrupt was generated by the QLA1280 before
191 doing any processing
192 - qla1280_status_entry(): Only zero out part of sense_buffer that
193 is not being copied into
194 - Remove more superflouous typecasts
195 - qla1280_32bit_start_scsi() replace home-brew memcpy() with memcpy()
196 Rev 3.23.6 Beta August 20, 2001, Tony Luck, Intel
197 - Don't walk the entire list in qla1280_putq_t() just to directly
198 grab the pointer to the last element afterwards
199 Rev 3.23.5 Beta August 9, 2001, Jes Sorensen
1d6f359a 200 - Don't use IRQF_DISABLED, it's use is deprecated for this kinda driver
1da177e4
LT		 201 Rev 3.23.4 Beta August 8, 2001, Jes Sorensen
202 - Set dev->max_sectors to 1024
203 Rev 3.23.3 Beta August 6, 2001, Jes Sorensen
204 - Provide compat macros for pci_enable_device(), pci_find_subsys()
205 and scsi_set_pci_device()
206 - Call scsi_set_pci_device() for all devices
207 - Reduce size of kernel version dependent device probe code
208 - Move duplicate probe/init code to separate function
209 - Handle error if qla1280_mem_alloc() fails
210 - Kill OFFSET() macro and use Linux's PCI definitions instead
211 - Kill private structure defining PCI config space (struct config_reg)
212 - Only allocate I/O port region if not in MMIO mode
213 - Remove duplicate (unused) sanity check of sife of srb_t
214 Rev 3.23.2 Beta August 6, 2001, Jes Sorensen
215 - Change home-brew memset() implementations to use memset()
216 - Remove all references to COMTRACE() - accessing a PC's COM2 serial
217 port directly is not legal under Linux.
218 Rev 3.23.1 Beta April 24, 2001, Jes Sorensen
219 - Remove pre 2.2 kernel support
220 - clean up 64 bit DMA setting to use 2.4 API (provide backwards compat)
221 - Fix MMIO access to use readl/writel instead of directly
222 dereferencing pointers
223 - Nuke MSDOS debugging code
224 - Change true/false data types to int from uint8_t
225 - Use int for counters instead of uint8_t etc.
226 - Clean up size & byte order conversion macro usage
227 Rev 3.23 Beta January 11, 2001 BN Qlogic
228 - Added check of device_id when handling non
229 QLA12160s during detect().
230 Rev 3.22 Beta January 5, 2001 BN Qlogic
231 - Changed queue_task() to schedule_task()
232 for kernels 2.4.0 and higher.
233 Note: 2.4.0-testxx kernels released prior to
234 the actual 2.4.0 kernel release on January 2001
235 will get compile/link errors with schedule_task().
236 Please update your kernel to released 2.4.0 level,
237 or comment lines in this file flagged with 3.22
238 to resolve compile/link error of schedule_task().
239 - Added -DCONFIG_SMP in addition to -D__SMP__
240 in Makefile for 2.4.0 builds of driver as module.
241 Rev 3.21 Beta January 4, 2001 BN Qlogic
242 - Changed criteria of 64/32 Bit mode of HBA
243 operation according to BITS_PER_LONG rather
244 than HBA's NVRAM setting of >4Gig memory bit;
245 so that the HBA auto-configures without the need
246 to setup each system individually.
247 Rev 3.20 Beta December 5, 2000 BN Qlogic
248 - Added priority handling to IA-64 onboard SCSI
249 ISP12160 chip for kernels greater than 2.3.18.
250 - Added irqrestore for qla1280_intr_handler.
251 - Enabled /proc/scsi/qla1280 interface.
252 - Clear /proc/scsi/qla1280 counters in detect().
253 Rev 3.19 Beta October 13, 2000 BN Qlogic
254 - Declare driver_template for new kernel
255 (2.4.0 and greater) scsi initialization scheme.
256 - Update /proc/scsi entry for 2.3.18 kernels and
257 above as qla1280
258 Rev 3.18 Beta October 10, 2000 BN Qlogic
259 - Changed scan order of adapters to map
260 the QLA12160 followed by the QLA1280.
261 Rev 3.17 Beta September 18, 2000 BN Qlogic
262 - Removed warnings for 32 bit 2.4.x compiles
263 - Corrected declared size for request and response
264 DMA addresses that are kept in each ha
265 Rev. 3.16 Beta August 25, 2000 BN Qlogic
266 - Corrected 64 bit addressing issue on IA-64
267 where the upper 32 bits were not properly
268 passed to the RISC engine.
269 Rev. 3.15 Beta August 22, 2000 BN Qlogic
270 - Modified qla1280_setup_chip to properly load
271 ISP firmware for greater that 4 Gig memory on IA-64
272 Rev. 3.14 Beta August 16, 2000 BN Qlogic
273 - Added setting of dma_mask to full 64 bit
274 if flags.enable_64bit_addressing is set in NVRAM
275 Rev. 3.13 Beta August 16, 2000 BN Qlogic
276 - Use new PCI DMA mapping APIs for 2.4.x kernel
277 Rev. 3.12 July 18, 2000 Redhat & BN Qlogic
278 - Added check of pci_enable_device to detect() for 2.3.x
279 - Use pci_resource_start() instead of
280 pdev->resource[0].start in detect() for 2.3.x
281 - Updated driver version
282 Rev. 3.11 July 14, 2000 BN Qlogic
283 - Updated SCSI Firmware to following versions:
284 qla1x80: 8.13.08
285 qla1x160: 10.04.08
286 - Updated driver version to 3.11
287 Rev. 3.10 June 23, 2000 BN Qlogic
288 - Added filtering of AMI SubSys Vendor ID devices
289 Rev. 3.9
290 - DEBUG_QLA1280 undefined and new version BN Qlogic
291 Rev. 3.08b May 9, 2000 MD Dell
292 - Added logic to check against AMI subsystem vendor ID
293 Rev. 3.08 May 4, 2000 DG Qlogic
294 - Added logic to check for PCI subsystem ID.
295 Rev. 3.07 Apr 24, 2000 DG & BN Qlogic
296 - Updated SCSI Firmware to following versions:
297 qla12160: 10.01.19
298 qla1280: 8.09.00
299 Rev. 3.06 Apr 12, 2000 DG & BN Qlogic
300 - Internal revision; not released
301 Rev. 3.05 Mar 28, 2000 DG & BN Qlogic
302 - Edit correction for virt_to_bus and PROC.
303 Rev. 3.04 Mar 28, 2000 DG & BN Qlogic
304 - Merge changes from ia64 port.
305 Rev. 3.03 Mar 28, 2000 BN Qlogic
306 - Increase version to reflect new code drop with compile fix
307 of issue with inclusion of linux/spinlock for 2.3 kernels
308 Rev. 3.02 Mar 15, 2000 BN Qlogic
309 - Merge qla1280_proc_info from 2.10 code base
310 Rev. 3.01 Feb 10, 2000 BN Qlogic
311 - Corrected code to compile on a 2.2.x kernel.
312 Rev. 3.00 Jan 17, 2000 DG Qlogic
313 - Added 64-bit support.
314 Rev. 2.07 Nov 9, 1999 DG Qlogic
315 - Added new routine to set target parameters for ISP12160.
316 Rev. 2.06 Sept 10, 1999 DG Qlogic
317 - Added support for ISP12160 Ultra 3 chip.
318 Rev. 2.03 August 3, 1999 Fred Lewis, Intel DuPont
319 - Modified code to remove errors generated when compiling with
320 Cygnus IA64 Compiler.
321 - Changed conversion of pointers to unsigned longs instead of integers.
322 - Changed type of I/O port variables from uint32_t to unsigned long.
323 - Modified OFFSET macro to work with 64-bit as well as 32-bit.
324 - Changed sprintf and printk format specifiers for pointers to %p.
325 - Changed some int to long type casts where needed in sprintf & printk.
326 - Added l modifiers to sprintf and printk format specifiers for longs.
327 - Removed unused local variables.
328 Rev. 1.20 June 8, 1999 DG, Qlogic
329 Changes to support RedHat release 6.0 (kernel 2.2.5).
330 - Added SCSI exclusive access lock (io_request_lock) when accessing
331 the adapter.
332 - Added changes for the new LINUX interface template. Some new error
333 handling routines have been added to the template, but for now we
334 will use the old ones.
335 - Initial Beta Release.
336*****************************************************************************/
337
338
1da177e4
LT		 339#include <linux/module.h>
340
1da177e4
LT		 341#include <linux/types.h>
342#include <linux/string.h>
343#include <linux/errno.h>
344#include <linux/kernel.h>
345#include <linux/ioport.h>
346#include <linux/delay.h>
347#include <linux/timer.h>
1da177e4
LT		 348#include <linux/pci.h>
349#include <linux/proc_fs.h>
350#include <linux/stat.h>
1da177e4
LT		 351#include <linux/pci_ids.h>
352#include <linux/interrupt.h>
353#include <linux/init.h>
910638ae 354#include <linux/dma-mapping.h>
1bfa11db 355#include <linux/firmware.h>
1da177e4
LT		 356
357#include <asm/io.h>
358#include <asm/irq.h>
359#include <asm/byteorder.h>
360#include <asm/processor.h>
361#include <asm/types.h>
1da177e4 362
1da177e4
LT		 363#include <scsi/scsi.h>
364#include <scsi/scsi_cmnd.h>
365#include <scsi/scsi_device.h>
366#include <scsi/scsi_host.h>
367#include <scsi/scsi_tcq.h>
1da177e4
LT		 368
369#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
370#include <asm/sn/io.h>
371#endif
372
1da177e4
LT		 373
374/*
375 * Compile time Options:
376 * 0 - Disable and 1 - Enable
377 */
378#define DEBUG_QLA1280_INTR 0
379#define DEBUG_PRINT_NVRAM 0
380#define DEBUG_QLA1280 0
381
1da177e4 382#define MEMORY_MAPPED_IO 1
1da177e4 383
1da177e4 384#include "qla1280.h"
1da177e4 385
1da177e4
LT		 386#ifndef BITS_PER_LONG
387#error "BITS_PER_LONG not defined!"
388#endif
389#if (BITS_PER_LONG == 64) || defined CONFIG_HIGHMEM
390#define QLA_64BIT_PTR 1
391#endif
392
393#ifdef QLA_64BIT_PTR
394#define pci_dma_hi32(a) ((a >> 16) >> 16)
395#else
396#define pci_dma_hi32(a) 0
397#endif
398#define pci_dma_lo32(a) (a & 0xffffffff)
399
400#define NVRAM_DELAY() udelay(500) /* 2 microseconds */
401
1da177e4
LT		 402#if defined(__ia64__) && !defined(ia64_platform_is)
403#define ia64_platform_is(foo) (!strcmp(x, platform_name))
404#endif
405
406
407#define IS_ISP1040(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020)
408#define IS_ISP1x40(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020 || \
409 ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1240)
410#define IS_ISP1x160(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP10160 || \
411 ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP12160)
412
413
414static int qla1280_probe_one(struct pci_dev *, const struct pci_device_id *);
415static void qla1280_remove_one(struct pci_dev *);
416
417/*
418 * QLogic Driver Support Function Prototypes.
419 */
420static void qla1280_done(struct scsi_qla_host *);
1da177e4
LT		 421static int qla1280_get_token(char *);
422static int qla1280_setup(char *s) __init;
423
424/*
425 * QLogic ISP1280 Hardware Support Function Prototypes.
426 */
427static int qla1280_load_firmware(struct scsi_qla_host *);
428static int qla1280_init_rings(struct scsi_qla_host *);
429static int qla1280_nvram_config(struct scsi_qla_host *);
430static int qla1280_mailbox_command(struct scsi_qla_host *,
431 uint8_t, uint16_t *);
432static int qla1280_bus_reset(struct scsi_qla_host *, int);
433static int qla1280_device_reset(struct scsi_qla_host *, int, int);
1da177e4
LT		 434static int qla1280_abort_command(struct scsi_qla_host *, struct srb *, int);
435static int qla1280_abort_isp(struct scsi_qla_host *);
436#ifdef QLA_64BIT_PTR
437static int qla1280_64bit_start_scsi(struct scsi_qla_host *, struct srb *);
438#else
439static int qla1280_32bit_start_scsi(struct scsi_qla_host *, struct srb *);
440#endif
441static void qla1280_nv_write(struct scsi_qla_host *, uint16_t);
442static void qla1280_poll(struct scsi_qla_host *);
443static void qla1280_reset_adapter(struct scsi_qla_host *);
444static void qla1280_marker(struct scsi_qla_host *, int, int, int, u8);
445static void qla1280_isp_cmd(struct scsi_qla_host *);
446static void qla1280_isr(struct scsi_qla_host *, struct list_head *);
447static void qla1280_rst_aen(struct scsi_qla_host *);
448static void qla1280_status_entry(struct scsi_qla_host *, struct response *,
449 struct list_head *);
450static void qla1280_error_entry(struct scsi_qla_host *, struct response *,
451 struct list_head *);
452static uint16_t qla1280_get_nvram_word(struct scsi_qla_host *, uint32_t);
453static uint16_t qla1280_nvram_request(struct scsi_qla_host *, uint32_t);
454static uint16_t qla1280_debounce_register(volatile uint16_t __iomem *);
455static request_t *qla1280_req_pkt(struct scsi_qla_host *);
456static int qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *,
457 unsigned int);
458static void qla1280_get_target_parameters(struct scsi_qla_host *,
459 struct scsi_device *);
460static int qla1280_set_target_parameters(struct scsi_qla_host *, int, int);
461
462
463static struct qla_driver_setup driver_setup;
464
465/*
466 * convert scsi data direction to request_t control flags
467 */
468static inline uint16_t
469qla1280_data_direction(struct scsi_cmnd *cmnd)
470{
471 switch(cmnd->sc_data_direction) {
472 case DMA_FROM_DEVICE:
473 return BIT_5;
474 case DMA_TO_DEVICE:
475 return BIT_6;
476 case DMA_BIDIRECTIONAL:
477 return BIT_5 | BIT_6;
478 /*
479 * We could BUG() on default here if one of the four cases aren't
480 * met, but then again if we receive something like that from the
481 * SCSI layer we have more serious problems. This shuts up GCC.
482 */
483 case DMA_NONE:
484 default:
485 return 0;
486 }
487}
488
489#if DEBUG_QLA1280
490static void __qla1280_print_scsi_cmd(struct scsi_cmnd * cmd);
491static void __qla1280_dump_buffer(char *, int);
492#endif
493
494
495/*
496 * insmod needs to find the variable and make it point to something
497 */
498#ifdef MODULE
499static char *qla1280;
500
501/* insmod qla1280 options=verbose" */
502module_param(qla1280, charp, 0);
503#else
504__setup("qla1280=", qla1280_setup);
505#endif
506
507
508/*
509 * We use the scsi_pointer structure that's included with each scsi_command
510 * to overlay our struct srb over it. qla1280_init() checks that a srb is not
511 * bigger than a scsi_pointer.
512 */
513
514#define CMD_SP(Cmnd) &Cmnd->SCp
515#define CMD_CDBLEN(Cmnd) Cmnd->cmd_len
516#define CMD_CDBP(Cmnd) Cmnd->cmnd
517#define CMD_SNSP(Cmnd) Cmnd->sense_buffer
b80ca4f7 518#define CMD_SNSLEN(Cmnd) SCSI_SENSE_BUFFERSIZE
1da177e4
LT		 519#define CMD_RESULT(Cmnd) Cmnd->result
520#define CMD_HANDLE(Cmnd) Cmnd->host_scribble
1da177e4 521#define CMD_REQUEST(Cmnd) Cmnd->request->cmd
1da177e4
LT		 522
523#define CMD_HOST(Cmnd) Cmnd->device->host
524#define SCSI_BUS_32(Cmnd) Cmnd->device->channel
525#define SCSI_TCN_32(Cmnd) Cmnd->device->id
526#define SCSI_LUN_32(Cmnd) Cmnd->device->lun
527
528
529/*****************************************/
530/* ISP Boards supported by this driver */
531/*****************************************/
532
533struct qla_boards {
421e33d0 534 char *name; /* Board ID String */
1da177e4 535 int numPorts; /* Number of SCSI ports */
421e33d0 536 int fw_index; /* index into qla1280_fw_tbl for firmware */
1da177e4
LT		 537};
538
539/* NOTE: the last argument in each entry is used to index ql1280_board_tbl */
540static struct pci_device_id qla1280_pci_tbl[] = {
541 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP12160,
542 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1da177e4
LT		 543 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1020,
544 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
1da177e4
LT		 545 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1080,
546 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
547 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1240,
548 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
549 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1280,
550 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
551 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP10160,
552 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
553 {0,}
554};
555MODULE_DEVICE_TABLE(pci, qla1280_pci_tbl);
556
421e33d0
MR		 557DEFINE_MUTEX(qla1280_firmware_mutex);
558
559struct qla_fw {
560 char *fwname;
561 const struct firmware *fw;
562};
563
564#define QL_NUM_FW_IMAGES 3
565
566struct qla_fw qla1280_fw_tbl[QL_NUM_FW_IMAGES] = {
567 {"qlogic/1040.bin", NULL}, /* image 0 */
568 {"qlogic/1280.bin", NULL}, /* image 1 */
569 {"qlogic/12160.bin", NULL}, /* image 2 */
570};
571
572/* NOTE: Order of boards in this table must match order in qla1280_pci_tbl */
1da177e4 573static struct qla_boards ql1280_board_tbl[] = {
421e33d0
MR		 574 {.name = "QLA12160", .numPorts = 2, .fw_index = 2},
575 {.name = "QLA1040" , .numPorts = 1, .fw_index = 0},
576 {.name = "QLA1080" , .numPorts = 1, .fw_index = 1},
577 {.name = "QLA1240" , .numPorts = 2, .fw_index = 1},
578 {.name = "QLA1280" , .numPorts = 2, .fw_index = 1},
579 {.name = "QLA10160", .numPorts = 1, .fw_index = 2},
580 {.name = " ", .numPorts = 0, .fw_index = -1},
1da177e4
LT		 581};
582
583static int qla1280_verbose = 1;
584
585#if DEBUG_QLA1280
586static int ql_debug_level = 1;
587#define dprintk(level, format, a...) \
588 do { if (ql_debug_level >= level) printk(KERN_ERR format, ##a); } while(0)
589#define qla1280_dump_buffer(level, buf, size) \
590 if (ql_debug_level >= level) __qla1280_dump_buffer(buf, size)
591#define qla1280_print_scsi_cmd(level, cmd) \
592 if (ql_debug_level >= level) __qla1280_print_scsi_cmd(cmd)
593#else
594#define ql_debug_level 0
595#define dprintk(level, format, a...) do{}while(0)
596#define qla1280_dump_buffer(a, b, c) do{}while(0)
597#define qla1280_print_scsi_cmd(a, b) do{}while(0)
598#endif
599
600#define ENTER(x) dprintk(3, "qla1280 : Entering %s()\n", x);
601#define LEAVE(x) dprintk(3, "qla1280 : Leaving %s()\n", x);
602#define ENTER_INTR(x) dprintk(4, "qla1280 : Entering %s()\n", x);
603#define LEAVE_INTR(x) dprintk(4, "qla1280 : Leaving %s()\n", x);
604
605
606static int qla1280_read_nvram(struct scsi_qla_host *ha)
607{
608 uint16_t *wptr;
609 uint8_t chksum;
610 int cnt, i;
611 struct nvram *nv;
612
613 ENTER("qla1280_read_nvram");
614
615 if (driver_setup.no_nvram)
616 return 1;
617
618 printk(KERN_INFO "scsi(%ld): Reading NVRAM\n", ha->host_no);
619
620 wptr = (uint16_t *)&ha->nvram;
621 nv = &ha->nvram;
622 chksum = 0;
623 for (cnt = 0; cnt < 3; cnt++) {
624 *wptr = qla1280_get_nvram_word(ha, cnt);
625 chksum += *wptr & 0xff;
626 chksum += (*wptr >> 8) & 0xff;
627 wptr++;
628 }
629
630 if (nv->id0 != 'I' || nv->id1 != 'S' ||
631 nv->id2 != 'P' || nv->id3 != ' ' || nv->version < 1) {
632 dprintk(2, "Invalid nvram ID or version!\n");
633 chksum = 1;
634 } else {
635 for (; cnt < sizeof(struct nvram); cnt++) {
636 *wptr = qla1280_get_nvram_word(ha, cnt);
637 chksum += *wptr & 0xff;
638 chksum += (*wptr >> 8) & 0xff;
639 wptr++;
640 }
641 }
642
643 dprintk(3, "qla1280_read_nvram: NVRAM Magic ID= %c %c %c %02x"
644 " version %i\n", nv->id0, nv->id1, nv->id2, nv->id3,
645 nv->version);
646
647
648 if (chksum) {
649 if (!driver_setup.no_nvram)
650 printk(KERN_WARNING "scsi(%ld): Unable to identify or "
651 "validate NVRAM checksum, using default "
652 "settings\n", ha->host_no);
653 ha->nvram_valid = 0;
654 } else
655 ha->nvram_valid = 1;
656
657 /* The firmware interface is, um, interesting, in that the
658 * actual firmware image on the chip is little endian, thus,
659 * the process of taking that image to the CPU would end up
c3af1715 660 * little endian. However, the firmware interface requires it
1da177e4
LT		 661 * to be read a word (two bytes) at a time.
662 *
663 * The net result of this would be that the word (and
664 * doubleword) quantites in the firmware would be correct, but
665 * the bytes would be pairwise reversed. Since most of the
666 * firmware quantites are, in fact, bytes, we do an extra
667 * le16_to_cpu() in the firmware read routine.
668 *
669 * The upshot of all this is that the bytes in the firmware
670 * are in the correct places, but the 16 and 32 bit quantites
671 * are still in little endian format. We fix that up below by
672 * doing extra reverses on them */
673 nv->isp_parameter = cpu_to_le16(nv->isp_parameter);
674 nv->firmware_feature.w = cpu_to_le16(nv->firmware_feature.w);
675 for(i = 0; i < MAX_BUSES; i++) {
676 nv->bus[i].selection_timeout = cpu_to_le16(nv->bus[i].selection_timeout);
677 nv->bus[i].max_queue_depth = cpu_to_le16(nv->bus[i].max_queue_depth);
678 }
679 dprintk(1, "qla1280_read_nvram: Completed Reading NVRAM\n");
680 LEAVE("qla1280_read_nvram");
681
682 return chksum;
683}
684
685/**************************************************************************
686 * qla1280_info
687 * Return a string describing the driver.
688 **************************************************************************/
689static const char *
690qla1280_info(struct Scsi_Host *host)
691{
692 static char qla1280_scsi_name_buffer[125];
693 char *bp;
694 struct scsi_qla_host *ha;
695 struct qla_boards *bdp;
696
697 bp = &qla1280_scsi_name_buffer[0];
698 ha = (struct scsi_qla_host *)host->hostdata;
699 bdp = &ql1280_board_tbl[ha->devnum];
700 memset(bp, 0, sizeof(qla1280_scsi_name_buffer));
701
702 sprintf (bp,
703 "QLogic %s PCI to SCSI Host Adapter\n"
704 " Firmware version: %2d.%02d.%02d, Driver version %s",
1bfa11db 705 &bdp->name[0], ha->fwver1, ha->fwver2, ha->fwver3,
1da177e4
LT		 706 QLA1280_VERSION);
707 return bp;
708}
709
710/**************************************************************************
fd65e5e9 711 * qla1280_queuecommand
1da177e4
LT		 712 * Queue a command to the controller.
713 *
714 * Note:
715 * The mid-level driver tries to ensures that queuecommand never gets invoked
716 * concurrently with itself or the interrupt handler (although the
717 * interrupt handler may call this routine as part of request-completion
718 * handling). Unfortunely, it sometimes calls the scheduler in interrupt
719 * context which is a big NO! NO!.
720 **************************************************************************/
721static int
f281233d 722qla1280_queuecommand_lck(struct scsi_cmnd *cmd, void (*fn)(struct scsi_cmnd *))
1da177e4
LT		 723{
724 struct Scsi_Host *host = cmd->device->host;
725 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
fd65e5e9 726 struct srb *sp = (struct srb *)CMD_SP(cmd);
1da177e4
LT		 727 int status;
728
729 cmd->scsi_done = fn;
730 sp->cmd = cmd;
731 sp->flags = 0;
413e6e18
MR		 732 sp->wait = NULL;
733 CMD_HANDLE(cmd) = (unsigned char *)NULL;
1da177e4
LT		 734
735 qla1280_print_scsi_cmd(5, cmd);
736
737#ifdef QLA_64BIT_PTR
738 /*
739 * Using 64 bit commands if the PCI bridge doesn't support it is a
740 * bit wasteful, however this should really only happen if one's
741 * PCI controller is completely broken, like the BCM1250. For
742 * sane hardware this is not an issue.
743 */
744 status = qla1280_64bit_start_scsi(ha, sp);
745#else
746 status = qla1280_32bit_start_scsi(ha, sp);
747#endif
748 return status;
749}
750
f281233d
JG		 751static DEF_SCSI_QCMD(qla1280_queuecommand)
752
1da177e4
LT		 753enum action {
754 ABORT_COMMAND,
1da177e4
LT		 755 DEVICE_RESET,
756 BUS_RESET,
757 ADAPTER_RESET,
1da177e4
LT		 758};
759
1da177e4
LT		 760
761static void qla1280_mailbox_timeout(unsigned long __data)
762{
763 struct scsi_qla_host *ha = (struct scsi_qla_host *)__data;
764 struct device_reg __iomem *reg;
765 reg = ha->iobase;
766
767 ha->mailbox_out[0] = RD_REG_WORD(&reg->mailbox0);
768 printk(KERN_ERR "scsi(%ld): mailbox timed out, mailbox0 %04x, "
769 "ictrl %04x, istatus %04x\n", ha->host_no, ha->mailbox_out[0],
770 RD_REG_WORD(&reg->ictrl), RD_REG_WORD(&reg->istatus));
771 complete(ha->mailbox_wait);
772}
773
413e6e18
MR		 774static int
775_qla1280_wait_for_single_command(struct scsi_qla_host *ha, struct srb *sp,
776 struct completion *wait)
777{
778 int status = FAILED;
779 struct scsi_cmnd *cmd = sp->cmd;
780
781 spin_unlock_irq(ha->host->host_lock);
782 wait_for_completion_timeout(wait, 4*HZ);
783 spin_lock_irq(ha->host->host_lock);
784 sp->wait = NULL;
785 if(CMD_HANDLE(cmd) == COMPLETED_HANDLE) {
786 status = SUCCESS;
787 (*cmd->scsi_done)(cmd);
788 }
789 return status;
790}
791
792static int
793qla1280_wait_for_single_command(struct scsi_qla_host *ha, struct srb *sp)
794{
795 DECLARE_COMPLETION_ONSTACK(wait);
796
797 sp->wait = &wait;
798 return _qla1280_wait_for_single_command(ha, sp, &wait);
799}
800
801static int
802qla1280_wait_for_pending_commands(struct scsi_qla_host *ha, int bus, int target)
803{
804 int cnt;
805 int status;
806 struct srb *sp;
807 struct scsi_cmnd *cmd;
808
809 status = SUCCESS;
810
811 /*
812 * Wait for all commands with the designated bus/target
813 * to be completed by the firmware
814 */
815 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
816 sp = ha->outstanding_cmds[cnt];
817 if (sp) {
818 cmd = sp->cmd;
819
820 if (bus >= 0 && SCSI_BUS_32(cmd) != bus)
821 continue;
822 if (target >= 0 && SCSI_TCN_32(cmd) != target)
823 continue;
824
825 status = qla1280_wait_for_single_command(ha, sp);
826 if (status == FAILED)
827 break;
828 }
829 }
830 return status;
831}
832
1da177e4 833/**************************************************************************
fd65e5e9 834 * qla1280_error_action
1da177e4
LT		 835 * The function will attempt to perform a specified error action and
836 * wait for the results (or time out).
837 *
838 * Input:
839 * cmd = Linux SCSI command packet of the command that cause the
840 * bus reset.
841 * action = error action to take (see action_t)
842 *
843 * Returns:
844 * SUCCESS or FAILED
845 *
1da177e4
LT		 846 **************************************************************************/
847static int
848qla1280_error_action(struct scsi_cmnd *cmd, enum action action)
849{
850 struct scsi_qla_host *ha;
851 int bus, target, lun;
852 struct srb *sp;
413e6e18
MR		 853 int i, found;
854 int result=FAILED;
855 int wait_for_bus=-1;
856 int wait_for_target = -1;
6e9a4738 857 DECLARE_COMPLETION_ONSTACK(wait);
1da177e4 858
fd65e5e9
MR		 859 ENTER("qla1280_error_action");
860
1da177e4 861 ha = (struct scsi_qla_host *)(CMD_HOST(cmd)->hostdata);
413e6e18
MR		 862 sp = (struct srb *)CMD_SP(cmd);
863 bus = SCSI_BUS_32(cmd);
864 target = SCSI_TCN_32(cmd);
865 lun = SCSI_LUN_32(cmd);
1da177e4
LT		 866
867 dprintk(4, "error_action %i, istatus 0x%04x\n", action,
868 RD_REG_WORD(&ha->iobase->istatus));
869
870 dprintk(4, "host_cmd 0x%04x, ictrl 0x%04x, jiffies %li\n",
871 RD_REG_WORD(&ha->iobase->host_cmd),
872 RD_REG_WORD(&ha->iobase->ictrl), jiffies);
873
1da177e4
LT		 874 if (qla1280_verbose)
875 printk(KERN_INFO "scsi(%li): Resetting Cmnd=0x%p, "
876 "Handle=0x%p, action=0x%x\n",
877 ha->host_no, cmd, CMD_HANDLE(cmd), action);
878
1da177e4 879 /*
413e6e18
MR		 880 * Check to see if we have the command in the outstanding_cmds[]
881 * array. If not then it must have completed before this error
882 * action was initiated. If the error_action isn't ABORT_COMMAND
883 * then the driver must proceed with the requested action.
1da177e4 884 */
413e6e18
MR		 885 found = -1;
886 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
887 if (sp == ha->outstanding_cmds[i]) {
888 found = i;
889 sp->wait = &wait; /* we'll wait for it to complete */
890 break;
1da177e4 891 }
1da177e4
LT		 892 }
893
413e6e18
MR		 894 if (found < 0) { /* driver doesn't have command */
895 result = SUCCESS;
896 if (qla1280_verbose) {
897 printk(KERN_INFO
898 "scsi(%ld:%d:%d:%d): specified command has "
899 "already completed.\n", ha->host_no, bus,
900 target, lun);
901 }
902 }
1da177e4 903
1da177e4 904 switch (action) {
1da177e4 905
413e6e18
MR		 906 case ABORT_COMMAND:
907 dprintk(1, "qla1280: RISC aborting command\n");
908 /*
909 * The abort might fail due to race when the host_lock
910 * is released to issue the abort. As such, we
911 * don't bother to check the return status.
912 */
913 if (found >= 0)
914 qla1280_abort_command(ha, sp, found);
1da177e4
LT		 915 break;
916
1da177e4
LT		 917 case DEVICE_RESET:
918 if (qla1280_verbose)
919 printk(KERN_INFO
920 "scsi(%ld:%d:%d:%d): Queueing device reset "
921 "command.\n", ha->host_no, bus, target, lun);
413e6e18
MR		 922 if (qla1280_device_reset(ha, bus, target) == 0) {
923 /* issued device reset, set wait conditions */
924 wait_for_bus = bus;
925 wait_for_target = target;
926 }
1da177e4
LT		 927 break;
928
929 case BUS_RESET:
930 if (qla1280_verbose)
cd00b7f5
JS		 931 printk(KERN_INFO "qla1280(%ld:%d): Issued bus "
932 "reset.\n", ha->host_no, bus);
413e6e18
MR		 933 if (qla1280_bus_reset(ha, bus) == 0) {
934 /* issued bus reset, set wait conditions */
935 wait_for_bus = bus;
936 }
1da177e4
LT		 937 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;
413e6e18
MR		 949
950 if (qla1280_abort_isp(ha) != 0) { /* it's dead */
951 result = FAILED;
952 }
1da177e4
LT		 953
954 ha->flags.reset_active = 0;
955 }
956
413e6e18
MR		 957 /*
958 * At this point, the host_lock has been released and retaken
959 * by the issuance of the mailbox command.
960 * Wait for the command passed in by the mid-layer if it
961 * was found by the driver. It might have been returned
962 * between eh recovery steps, hence the check of the "found"
963 * variable.
964 */
1da177e4 965
413e6e18
MR		 966 if (found >= 0)
967 result = _qla1280_wait_for_single_command(ha, sp, &wait);
1da177e4 968
413e6e18
MR		 969 if (action == ABORT_COMMAND && result != SUCCESS) {
970 printk(KERN_WARNING
971 "scsi(%li:%i:%i:%i): "
972 "Unable to abort command!\n",
973 ha->host_no, bus, target, lun);
974 }
1da177e4 975
413e6e18
MR		 976 /*
977 * If the command passed in by the mid-layer has been
978 * returned by the board, then wait for any additional
979 * commands which are supposed to complete based upon
980 * the error action.
981 *
982 * All commands are unconditionally returned during a
983 * call to qla1280_abort_isp(), ADAPTER_RESET. No need
984 * to wait for them.
985 */
986 if (result == SUCCESS && wait_for_bus >= 0) {
987 result = qla1280_wait_for_pending_commands(ha,
988 wait_for_bus, wait_for_target);
1da177e4
LT		 989 }
990
1da177e4
LT		 991 dprintk(1, "RESET returning %d\n", result);
992
993 LEAVE("qla1280_error_action");
994 return result;
995}
996
997/**************************************************************************
998 * qla1280_abort
999 * Abort the specified SCSI command(s).
1000 **************************************************************************/
1001static int
1002qla1280_eh_abort(struct scsi_cmnd * cmd)
1003{
8fa728a2
JG		 1004 int rc;
1005
1006 spin_lock_irq(cmd->device->host->host_lock);
1007 rc = qla1280_error_action(cmd, ABORT_COMMAND);
1008 spin_unlock_irq(cmd->device->host->host_lock);
1009
1010 return rc;
1da177e4
LT		 1011}
1012
1013/**************************************************************************
1014 * qla1280_device_reset
1015 * Reset the specified SCSI device
1016 **************************************************************************/
1017static int
1018qla1280_eh_device_reset(struct scsi_cmnd *cmd)
1019{
94d0e7b8
JG		 1020 int rc;
1021
1022 spin_lock_irq(cmd->device->host->host_lock);
1023 rc = qla1280_error_action(cmd, DEVICE_RESET);
1024 spin_unlock_irq(cmd->device->host->host_lock);
1025
1026 return rc;
1da177e4
LT		 1027}
1028
1029/**************************************************************************
1030 * qla1280_bus_reset
1031 * Reset the specified bus.
1032 **************************************************************************/
1033static int
1034qla1280_eh_bus_reset(struct scsi_cmnd *cmd)
1035{
68b3aa7c
JG		 1036 int rc;
1037
1038 spin_lock_irq(cmd->device->host->host_lock);
1039 rc = qla1280_error_action(cmd, BUS_RESET);
1040 spin_unlock_irq(cmd->device->host->host_lock);
1041
1042 return rc;
1da177e4
LT		 1043}
1044
1045/**************************************************************************
1046 * qla1280_adapter_reset
1047 * Reset the specified adapter (both channels)
1048 **************************************************************************/
1049static int
1050qla1280_eh_adapter_reset(struct scsi_cmnd *cmd)
1051{
df0ae249
JG		 1052 int rc;
1053
1054 spin_lock_irq(cmd->device->host->host_lock);
1055 rc = qla1280_error_action(cmd, ADAPTER_RESET);
1056 spin_unlock_irq(cmd->device->host->host_lock);
1057
1058 return rc;
1da177e4
LT		 1059}
1060
1061static int
1062qla1280_biosparam(struct scsi_device *sdev, struct block_device *bdev,
1063 sector_t capacity, int geom[])
1064{
1065 int heads, sectors, cylinders;
1066
1067 heads = 64;
1068 sectors = 32;
1069 cylinders = (unsigned long)capacity / (heads * sectors);
1070 if (cylinders > 1024) {
1071 heads = 255;
1072 sectors = 63;
1073 cylinders = (unsigned long)capacity / (heads * sectors);
1074 /* if (cylinders > 1023)
1075 cylinders = 1023; */
1076 }
1077
1078 geom[0] = heads;
1079 geom[1] = sectors;
1080 geom[2] = cylinders;
1081
1082 return 0;
1083}
1084
8af50dcd
CH		 1085
1086/* disable risc and host interrupts */
1087static inline void
1088qla1280_disable_intrs(struct scsi_qla_host *ha)
1089{
1090 WRT_REG_WORD(&ha->iobase->ictrl, 0);
1091 RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */
1092}
1093
1094/* enable risc and host interrupts */
1095static inline void
1096qla1280_enable_intrs(struct scsi_qla_host *ha)
1097{
1098 WRT_REG_WORD(&ha->iobase->ictrl, (ISP_EN_INT | ISP_EN_RISC));
1099 RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */
1100}
1da177e4
LT		 1101
1102/**************************************************************************
1103 * qla1280_intr_handler
1104 * Handles the H/W interrupt
1105 **************************************************************************/
1106static irqreturn_t
7d12e780 1107qla1280_intr_handler(int irq, void *dev_id)
1da177e4
LT		 1108{
1109 struct scsi_qla_host *ha;
1110 struct device_reg __iomem *reg;
1111 u16 data;
1112 int handled = 0;
1113
1114 ENTER_INTR ("qla1280_intr_handler");
1115 ha = (struct scsi_qla_host *)dev_id;
1116
2dbb04c6 1117 spin_lock(ha->host->host_lock);
1da177e4
LT		 1118
1119 ha->isr_count++;
1120 reg = ha->iobase;
1121
8af50dcd 1122 qla1280_disable_intrs(ha);
1da177e4
LT		 1123
1124 data = qla1280_debounce_register(&reg->istatus);
1125 /* Check for pending interrupts. */
1126 if (data & RISC_INT) {
1127 qla1280_isr(ha, &ha->done_q);
1128 handled = 1;
1129 }
1130 if (!list_empty(&ha->done_q))
1131 qla1280_done(ha);
1132
2dbb04c6 1133 spin_unlock(ha->host->host_lock);
1da177e4 1134
8af50dcd 1135 qla1280_enable_intrs(ha);
1da177e4
LT		 1136
1137 LEAVE_INTR("qla1280_intr_handler");
1138 return IRQ_RETVAL(handled);
1139}
1140
1141
1142static int
1143qla1280_set_target_parameters(struct scsi_qla_host *ha, int bus, int target)
1144{
1145 uint8_t mr;
1146 uint16_t mb[MAILBOX_REGISTER_COUNT];
1147 struct nvram *nv;
7a34766f 1148 int status, lun;
1da177e4
LT		 1149
1150 nv = &ha->nvram;
1151
1152 mr = BIT_3 | BIT_2 | BIT_1 | BIT_0;
1153
1154 /* Set Target Parameters. */
1155 mb[0] = MBC_SET_TARGET_PARAMETERS;
7a34766f
CH		 1156 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
1157 mb[2] = nv->bus[bus].target[target].parameter.renegotiate_on_error << 8;
1158 mb[2] |= nv->bus[bus].target[target].parameter.stop_queue_on_check << 9;
1159 mb[2] |= nv->bus[bus].target[target].parameter.auto_request_sense << 10;
1160 mb[2] |= nv->bus[bus].target[target].parameter.tag_queuing << 11;
1161 mb[2] |= nv->bus[bus].target[target].parameter.enable_sync << 12;
1162 mb[2] |= nv->bus[bus].target[target].parameter.enable_wide << 13;
1163 mb[2] |= nv->bus[bus].target[target].parameter.parity_checking << 14;
1164 mb[2] |= nv->bus[bus].target[target].parameter.disconnect_allowed << 15;
1da177e4
LT		 1165
1166 if (IS_ISP1x160(ha)) {
1167 mb[2] |= nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr << 5;
7a34766f 1168 mb[3] = (nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8);
1da177e4
LT		 1169 mb[6] = (nv->bus[bus].target[target].ppr_1x160.flags.ppr_options << 8) |
1170 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width;
1171 mr |= BIT_6;
1172 } else {
7a34766f 1173 mb[3] = (nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8);
1da177e4 1174 }
7a34766f
CH		 1175 mb[3] |= nv->bus[bus].target[target].sync_period;
1176
1177 status = qla1280_mailbox_command(ha, mr, mb);
1da177e4 1178
7a34766f
CH		 1179 /* Set Device Queue Parameters. */
1180 for (lun = 0; lun < MAX_LUNS; lun++) {
1181 mb[0] = MBC_SET_DEVICE_QUEUE;
1182 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
1183 mb[1] |= lun;
1184 mb[2] = nv->bus[bus].max_queue_depth;
1185 mb[3] = nv->bus[bus].target[target].execution_throttle;
1186 status |= qla1280_mailbox_command(ha, 0x0f, mb);
1187 }
1da177e4
LT		 1188
1189 if (status)
1190 printk(KERN_WARNING "scsi(%ld:%i:%i): "
1191 "qla1280_set_target_parameters() failed\n",
1192 ha->host_no, bus, target);
1193 return status;
1194}
1195
1196
1197/**************************************************************************
1198 * qla1280_slave_configure
1199 *
1200 * Description:
1201 * Determines the queue depth for a given device. There are two ways
1202 * a queue depth can be obtained for a tagged queueing device. One
1203 * way is the default queue depth which is determined by whether
1204 * If it is defined, then it is used
1205 * as the default queue depth. Otherwise, we use either 4 or 8 as the
1206 * default queue depth (dependent on the number of hardware SCBs).
1207 **************************************************************************/
1208static int
1209qla1280_slave_configure(struct scsi_device *device)
1210{
1211 struct scsi_qla_host *ha;
1212 int default_depth = 3;
1213 int bus = device->channel;
1214 int target = device->id;
1215 int status = 0;
1216 struct nvram *nv;
1217 unsigned long flags;
1218
1219 ha = (struct scsi_qla_host *)device->host->hostdata;
1220 nv = &ha->nvram;
1221
1222 if (qla1280_check_for_dead_scsi_bus(ha, bus))
1223 return 1;
1224
1225 if (device->tagged_supported &&
1226 (ha->bus_settings[bus].qtag_enables & (BIT_0 << target))) {
db5ed4df 1227 scsi_change_queue_depth(device, ha->bus_settings[bus].hiwat);
1da177e4 1228 } else {
db5ed4df 1229 scsi_change_queue_depth(device, default_depth);
1da177e4
LT		 1230 }
1231
7a34766f
CH		 1232 nv->bus[bus].target[target].parameter.enable_sync = device->sdtr;
1233 nv->bus[bus].target[target].parameter.enable_wide = device->wdtr;
1da177e4 1234 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = device->ppr;
1da177e4
LT		 1235
1236 if (driver_setup.no_sync ||
1237 (driver_setup.sync_mask &&
1238 (~driver_setup.sync_mask & (1 << target))))
7a34766f 1239 nv->bus[bus].target[target].parameter.enable_sync = 0;
1da177e4
LT		 1240 if (driver_setup.no_wide ||
1241 (driver_setup.wide_mask &&
1242 (~driver_setup.wide_mask & (1 << target))))
7a34766f 1243 nv->bus[bus].target[target].parameter.enable_wide = 0;
1da177e4
LT		 1244 if (IS_ISP1x160(ha)) {
1245 if (driver_setup.no_ppr ||
1246 (driver_setup.ppr_mask &&
1247 (~driver_setup.ppr_mask & (1 << target))))
1248 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 0;
1249 }
1250
2dbb04c6 1251 spin_lock_irqsave(ha->host->host_lock, flags);
7a34766f 1252 if (nv->bus[bus].target[target].parameter.enable_sync)
1da177e4
LT		 1253 status = qla1280_set_target_parameters(ha, bus, target);
1254 qla1280_get_target_parameters(ha, device);
2dbb04c6 1255 spin_unlock_irqrestore(ha->host->host_lock, flags);
1da177e4
LT		 1256 return status;
1257}
1258
1da177e4
LT		 1259
1260/*
1261 * qla1280_done
1262 * Process completed commands.
1263 *
1264 * Input:
1265 * ha = adapter block pointer.
1da177e4
LT		 1266 */
1267static void
1268qla1280_done(struct scsi_qla_host *ha)
1269{
1270 struct srb *sp;
1271 struct list_head *done_q;
1272 int bus, target, lun;
1273 struct scsi_cmnd *cmd;
1274
1275 ENTER("qla1280_done");
1276
1277 done_q = &ha->done_q;
1278
1279 while (!list_empty(done_q)) {
1280 sp = list_entry(done_q->next, struct srb, list);
1281
1282 list_del(&sp->list);
1283
1284 cmd = sp->cmd;
1285 bus = SCSI_BUS_32(cmd);
1286 target = SCSI_TCN_32(cmd);
1287 lun = SCSI_LUN_32(cmd);
1288
1289 switch ((CMD_RESULT(cmd) >> 16)) {
1290 case DID_RESET:
1291 /* Issue marker command. */
413e6e18
MR		 1292 if (!ha->flags.abort_isp_active)
1293 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
1da177e4
LT		 1294 break;
1295 case DID_ABORT:
1296 sp->flags &= ~SRB_ABORT_PENDING;
1297 sp->flags |= SRB_ABORTED;
1da177e4
LT		 1298 break;
1299 default:
1300 break;
1301 }
1302
1303 /* Release memory used for this I/O */
5c1da582 1304 scsi_dma_unmap(cmd);
1da177e4
LT		 1305
1306 /* Call the mid-level driver interrupt handler */
1da177e4
LT		 1307 ha->actthreads--;
1308
413e6e18
MR		 1309 if (sp->wait == NULL)
1310 (*(cmd)->scsi_done)(cmd);
1311 else
1da177e4
LT		 1312 complete(sp->wait);
1313 }
1314 LEAVE("qla1280_done");
1315}
1316
1317/*
1318 * Translates a ISP error to a Linux SCSI error
1319 */
1320static int
1321qla1280_return_status(struct response * sts, struct scsi_cmnd *cp)
1322{
1323 int host_status = DID_ERROR;
1324 uint16_t comp_status = le16_to_cpu(sts->comp_status);
1325 uint16_t state_flags = le16_to_cpu(sts->state_flags);
3ef49a3b 1326 uint32_t residual_length = le32_to_cpu(sts->residual_length);
1da177e4
LT		 1327 uint16_t scsi_status = le16_to_cpu(sts->scsi_status);
1328#if DEBUG_QLA1280_INTR
1329 static char *reason[] = {
1330 "DID_OK",
1331 "DID_NO_CONNECT",
1332 "DID_BUS_BUSY",
1333 "DID_TIME_OUT",
1334 "DID_BAD_TARGET",
1335 "DID_ABORT",
1336 "DID_PARITY",
1337 "DID_ERROR",
1338 "DID_RESET",
1339 "DID_BAD_INTR"
1340 };
1341#endif /* DEBUG_QLA1280_INTR */
1342
1343 ENTER("qla1280_return_status");
1344
1345#if DEBUG_QLA1280_INTR
1346 /*
1347 dprintk(1, "qla1280_return_status: compl status = 0x%04x\n",
1348 comp_status);
1349 */
1350#endif
1351
1352 switch (comp_status) {
1353 case CS_COMPLETE:
1354 host_status = DID_OK;
1355 break;
1356
1357 case CS_INCOMPLETE:
1358 if (!(state_flags & SF_GOT_BUS))
1359 host_status = DID_NO_CONNECT;
1360 else if (!(state_flags & SF_GOT_TARGET))
1361 host_status = DID_BAD_TARGET;
1362 else if (!(state_flags & SF_SENT_CDB))
1363 host_status = DID_ERROR;
1364 else if (!(state_flags & SF_TRANSFERRED_DATA))
1365 host_status = DID_ERROR;
1366 else if (!(state_flags & SF_GOT_STATUS))
1367 host_status = DID_ERROR;
1368 else if (!(state_flags & SF_GOT_SENSE))
1369 host_status = DID_ERROR;
1370 break;
1371
1372 case CS_RESET:
1373 host_status = DID_RESET;
1374 break;
1375
1376 case CS_ABORTED:
1377 host_status = DID_ABORT;
1378 break;
1379
1380 case CS_TIMEOUT:
1381 host_status = DID_TIME_OUT;
1382 break;
1383
1384 case CS_DATA_OVERRUN:
1385 dprintk(2, "Data overrun 0x%x\n", residual_length);
2b55cac3 1386 dprintk(2, "qla1280_return_status: response packet data\n");
1da177e4
LT		 1387 qla1280_dump_buffer(2, (char *)sts, RESPONSE_ENTRY_SIZE);
1388 host_status = DID_ERROR;
1389 break;
1390
1391 case CS_DATA_UNDERRUN:
5c1da582 1392 if ((scsi_bufflen(cp) - residual_length) <
1da177e4
LT		 1393 cp->underflow) {
1394 printk(KERN_WARNING
1395 "scsi: Underflow detected - retrying "
1396 "command.\n");
1397 host_status = DID_ERROR;
3ef49a3b 1398 } else {
5c1da582 1399 scsi_set_resid(cp, residual_length);
1da177e4 1400 host_status = DID_OK;
3ef49a3b 1401 }
1da177e4
LT		 1402 break;
1403
1404 default:
1405 host_status = DID_ERROR;
1406 break;
1407 }
1408
1409#if DEBUG_QLA1280_INTR
1410 dprintk(1, "qla1280 ISP status: host status (%s) scsi status %x\n",
1411 reason[host_status], scsi_status);
1412#endif
1413
1414 LEAVE("qla1280_return_status");
1415
1416 return (scsi_status & 0xff) | (host_status << 16);
1417}
1418
1419/****************************************************************************/
1420/* QLogic ISP1280 Hardware Support Functions. */
1421/****************************************************************************/
1422
1da177e4
LT		 1423/*
1424 * qla1280_initialize_adapter
1425 * Initialize board.
1426 *
1427 * Input:
1428 * ha = adapter block pointer.
1429 *
1430 * Returns:
1431 * 0 = success
1432 */
6f039790 1433static int
1da177e4
LT		 1434qla1280_initialize_adapter(struct scsi_qla_host *ha)
1435{
1436 struct device_reg __iomem *reg;
1437 int status;
1438 int bus;
1da177e4 1439 unsigned long flags;
1da177e4
LT		 1440
1441 ENTER("qla1280_initialize_adapter");
1442
1443 /* Clear adapter flags. */
1444 ha->flags.online = 0;
1445 ha->flags.disable_host_adapter = 0;
1446 ha->flags.reset_active = 0;
1447 ha->flags.abort_isp_active = 0;
1448
1da177e4
LT		 1449#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
1450 if (ia64_platform_is("sn2")) {
1451 printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA "
1452 "dual channel lockup workaround\n", ha->host_no);
1453 ha->flags.use_pci_vchannel = 1;
1454 driver_setup.no_nvram = 1;
1455 }
1456#endif
1457
1458 /* TODO: implement support for the 1040 nvram format */
1459 if (IS_ISP1040(ha))
1460 driver_setup.no_nvram = 1;
1461
1462 dprintk(1, "Configure PCI space for adapter...\n");
1463
1464 reg = ha->iobase;
1465
1466 /* Insure mailbox registers are free. */
1467 WRT_REG_WORD(&reg->semaphore, 0);
1468 WRT_REG_WORD(&reg->host_cmd, HC_CLR_RISC_INT);
1469 WRT_REG_WORD(&reg->host_cmd, HC_CLR_HOST_INT);
1470 RD_REG_WORD(&reg->host_cmd);
1471
1472 if (qla1280_read_nvram(ha)) {
1473 dprintk(2, "qla1280_initialize_adapter: failed to read "
1474 "NVRAM\n");
1475 }
1476
1da177e4
LT		 1477 /*
1478 * It's necessary to grab the spin here as qla1280_mailbox_command
1479 * needs to be able to drop the lock unconditionally to wait
1480 * for completion.
1da177e4 1481 */
2dbb04c6 1482 spin_lock_irqsave(ha->host->host_lock, flags);
1da177e4
LT		 1483
1484 status = qla1280_load_firmware(ha);
1485 if (status) {
1486 printk(KERN_ERR "scsi(%li): initialize: pci probe failed!\n",
1487 ha->host_no);
1488 goto out;
1489 }
1490
1491 /* Setup adapter based on NVRAM parameters. */
1492 dprintk(1, "scsi(%ld): Configure NVRAM parameters\n", ha->host_no);
1493 qla1280_nvram_config(ha);
1494
1495 if (ha->flags.disable_host_adapter) {
1496 status = 1;
1497 goto out;
1498 }
1499
1500 status = qla1280_init_rings(ha);
1501 if (status)
1502 goto out;
1503
1504 /* Issue SCSI reset, if we can't reset twice then bus is dead */
1505 for (bus = 0; bus < ha->ports; bus++) {
1506 if (!ha->bus_settings[bus].disable_scsi_reset &&
1507 qla1280_bus_reset(ha, bus) &&
1508 qla1280_bus_reset(ha, bus))
1509 ha->bus_settings[bus].scsi_bus_dead = 1;
1510 }
1511
1512 ha->flags.online = 1;
1513 out:
2dbb04c6
JS		 1514 spin_unlock_irqrestore(ha->host->host_lock, flags);
1515
1da177e4
LT		 1516 if (status)
1517 dprintk(2, "qla1280_initialize_adapter: **** FAILED ****\n");
1518
1519 LEAVE("qla1280_initialize_adapter");
1520 return status;
1521}
1522
421e33d0
MR		 1523/*
1524 * qla1280_request_firmware
1525 * Acquire firmware for chip. Retain in memory
1526 * for error recovery.
1527 *
1528 * Input:
1529 * ha = adapter block pointer.
1530 *
1531 * Returns:
1532 * Pointer to firmware image or an error code
1533 * cast to pointer via ERR_PTR().
1534 */
1535static const struct firmware *
1536qla1280_request_firmware(struct scsi_qla_host *ha)
1537{
1538 const struct firmware *fw;
1539 int err;
1540 int index;
1541 char *fwname;
1542
1543 spin_unlock_irq(ha->host->host_lock);
1544 mutex_lock(&qla1280_firmware_mutex);
1545
1546 index = ql1280_board_tbl[ha->devnum].fw_index;
1547 fw = qla1280_fw_tbl[index].fw;
1548 if (fw)
1549 goto out;
1550
1551 fwname = qla1280_fw_tbl[index].fwname;
1552 err = request_firmware(&fw, fwname, &ha->pdev->dev);
1553
1554 if (err) {
1555 printk(KERN_ERR "Failed to load image \"%s\" err %d\n",
1556 fwname, err);
1557 fw = ERR_PTR(err);
1558 goto unlock;
1559 }
1560 if ((fw->size % 2) || (fw->size < 6)) {
1561 printk(KERN_ERR "Invalid firmware length %zu in image \"%s\"\n",
1562 fw->size, fwname);
1563 release_firmware(fw);
1564 fw = ERR_PTR(-EINVAL);
1565 goto unlock;
1566 }
1567
1568 qla1280_fw_tbl[index].fw = fw;
1569
1570 out:
1571 ha->fwver1 = fw->data[0];
1572 ha->fwver2 = fw->data[1];
1573 ha->fwver3 = fw->data[2];
1574 unlock:
1575 mutex_unlock(&qla1280_firmware_mutex);
1576 spin_lock_irq(ha->host->host_lock);
1577 return fw;
1578}
1579
1da177e4
LT		 1580/*
1581 * Chip diagnostics
1582 * Test chip for proper operation.
1583 *
1584 * Input:
1585 * ha = adapter block pointer.
1586 *
1587 * Returns:
1588 * 0 = success.
1589 */
1590static int
1591qla1280_chip_diag(struct scsi_qla_host *ha)
1592{
1593 uint16_t mb[MAILBOX_REGISTER_COUNT];
1594 struct device_reg __iomem *reg = ha->iobase;
1595 int status = 0;
1596 int cnt;
1597 uint16_t data;
1598 dprintk(3, "qla1280_chip_diag: testing device at 0x%p \n", &reg->id_l);
1599
1600 dprintk(1, "scsi(%ld): Verifying chip\n", ha->host_no);
1601
1602 /* Soft reset chip and wait for it to finish. */
1603 WRT_REG_WORD(&reg->ictrl, ISP_RESET);
1604
1605 /*
1606 * We can't do a traditional PCI write flush here by reading
1607 * back the register. The card will not respond once the reset
1608 * is in action and we end up with a machine check exception
1609 * instead. Nothing to do but wait and hope for the best.
1610 * A portable pci_write_flush(pdev) call would be very useful here.
1611 */
1612 udelay(20);
1613 data = qla1280_debounce_register(&reg->ictrl);
1614 /*
1615 * Yet another QLogic gem ;-(
1616 */
1617 for (cnt = 1000000; cnt && data & ISP_RESET; cnt--) {
1618 udelay(5);
1619 data = RD_REG_WORD(&reg->ictrl);
1620 }
1621
1622 if (!cnt)
1623 goto fail;
1624
1625 /* Reset register cleared by chip reset. */
1626 dprintk(3, "qla1280_chip_diag: reset register cleared by chip reset\n");
1627
1628 WRT_REG_WORD(&reg->cfg_1, 0);
1629
1630 /* Reset RISC and disable BIOS which
1631 allows RISC to execute out of RAM. */
1632 WRT_REG_WORD(&reg->host_cmd, HC_RESET_RISC |
1633 HC_RELEASE_RISC | HC_DISABLE_BIOS);
1634
1635 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
1636 data = qla1280_debounce_register(&reg->mailbox0);
1637
1638 /*
1639 * I *LOVE* this code!
1640 */
1641 for (cnt = 1000000; cnt && data == MBS_BUSY; cnt--) {
1642 udelay(5);
1643 data = RD_REG_WORD(&reg->mailbox0);
1644 }
1645
1646 if (!cnt)
1647 goto fail;
1648
1649 /* Check product ID of chip */
1650 dprintk(3, "qla1280_chip_diag: Checking product ID of chip\n");
1651
1652 if (RD_REG_WORD(&reg->mailbox1) != PROD_ID_1 ||
1653 (RD_REG_WORD(&reg->mailbox2) != PROD_ID_2 &&
1654 RD_REG_WORD(&reg->mailbox2) != PROD_ID_2a) ||
1655 RD_REG_WORD(&reg->mailbox3) != PROD_ID_3 ||
1656 RD_REG_WORD(&reg->mailbox4) != PROD_ID_4) {
1657 printk(KERN_INFO "qla1280: Wrong product ID = "
1658 "0x%x,0x%x,0x%x,0x%x\n",
1659 RD_REG_WORD(&reg->mailbox1),
1660 RD_REG_WORD(&reg->mailbox2),
1661 RD_REG_WORD(&reg->mailbox3),
1662 RD_REG_WORD(&reg->mailbox4));
1663 goto fail;
1664 }
1665
1666 /*
1667 * Enable ints early!!!
1668 */
1669 qla1280_enable_intrs(ha);
1670
1671 dprintk(1, "qla1280_chip_diag: Checking mailboxes of chip\n");
1672 /* Wrap Incoming Mailboxes Test. */
1673 mb[0] = MBC_MAILBOX_REGISTER_TEST;
1674 mb[1] = 0xAAAA;
1675 mb[2] = 0x5555;
1676 mb[3] = 0xAA55;
1677 mb[4] = 0x55AA;
1678 mb[5] = 0xA5A5;
1679 mb[6] = 0x5A5A;
1680 mb[7] = 0x2525;
1681
1682 status = qla1280_mailbox_command(ha, 0xff, mb);
1683 if (status)
1684 goto fail;
1685
1686 if (mb[1] != 0xAAAA || mb[2] != 0x5555 || mb[3] != 0xAA55 ||
1687 mb[4] != 0x55AA || mb[5] != 0xA5A5 || mb[6] != 0x5A5A ||
1688 mb[7] != 0x2525) {
1689 printk(KERN_INFO "qla1280: Failed mbox check\n");
1690 goto fail;
1691 }
1692
1693 dprintk(3, "qla1280_chip_diag: exiting normally\n");
1694 return 0;
1695 fail:
1696 dprintk(2, "qla1280_chip_diag: **** FAILED ****\n");
1697 return status;
1698}
1699
1700static int
1701qla1280_load_firmware_pio(struct scsi_qla_host *ha)
1702{
421e33d0
MR		 1703 /* enter with host_lock acquired */
1704
1bfa11db
JSR		 1705 const struct firmware *fw;
1706 const __le16 *fw_data;
1707 uint16_t risc_address, risc_code_size;
1da177e4 1708 uint16_t mb[MAILBOX_REGISTER_COUNT], i;
421e33d0
MR		 1709 int err = 0;
1710
1711 fw = qla1280_request_firmware(ha);
1712 if (IS_ERR(fw))
1713 return PTR_ERR(fw);
1da177e4 1714
1bfa11db
JSR		 1715 fw_data = (const __le16 *)&fw->data[0];
1716 ha->fwstart = __le16_to_cpu(fw_data[2]);
1717
1da177e4 1718 /* Load RISC code. */
1bfa11db 1719 risc_address = ha->fwstart;
0ce49d6d 1720 fw_data = (const __le16 *)&fw->data[6];
1bfa11db 1721 risc_code_size = (fw->size - 6) / 2;
1da177e4
LT		 1722
1723 for (i = 0; i < risc_code_size; i++) {
1724 mb[0] = MBC_WRITE_RAM_WORD;
1725 mb[1] = risc_address + i;
1bfa11db 1726 mb[2] = __le16_to_cpu(fw_data[i]);
1da177e4
LT		 1727
1728 err = qla1280_mailbox_command(ha, BIT_0 | BIT_1 | BIT_2, mb);
1729 if (err) {
1730 printk(KERN_ERR "scsi(%li): Failed to load firmware\n",
1731 ha->host_no);
421e33d0 1732 break;
1da177e4
LT		 1733 }
1734 }
421e33d0 1735
1bfa11db 1736 return err;
1da177e4
LT		 1737}
1738
1739#define DUMP_IT_BACK 0 /* for debug of RISC loading */
1740static int
1741qla1280_load_firmware_dma(struct scsi_qla_host *ha)
1742{
421e33d0 1743 /* enter with host_lock acquired */
1bfa11db
JSR		 1744 const struct firmware *fw;
1745 const __le16 *fw_data;
1746 uint16_t risc_address, risc_code_size;
1da177e4
LT		 1747 uint16_t mb[MAILBOX_REGISTER_COUNT], cnt;
1748 int err = 0, num, i;
1749#if DUMP_IT_BACK
1750 uint8_t *sp, *tbuf;
1751 dma_addr_t p_tbuf;
1752
1753 tbuf = pci_alloc_consistent(ha->pdev, 8000, &p_tbuf);
1754 if (!tbuf)
1755 return -ENOMEM;
1756#endif
1757
421e33d0
MR		 1758 fw = qla1280_request_firmware(ha);
1759 if (IS_ERR(fw))
1760 return PTR_ERR(fw);
1761
1bfa11db
JSR		 1762 fw_data = (const __le16 *)&fw->data[0];
1763 ha->fwstart = __le16_to_cpu(fw_data[2]);
1764
1da177e4 1765 /* Load RISC code. */
1bfa11db 1766 risc_address = ha->fwstart;
0ce49d6d 1767 fw_data = (const __le16 *)&fw->data[6];
1bfa11db 1768 risc_code_size = (fw->size - 6) / 2;
1da177e4
LT		 1769
1770 dprintk(1, "%s: DMA RISC code (%i) words\n",
cadbd4a5 1771 __func__, risc_code_size);
1da177e4
LT		 1772
1773 num = 0;
1774 while (risc_code_size > 0) {
1775 int warn __attribute__((unused)) = 0;
1776
1777 cnt = 2000 >> 1;
1778
1779 if (cnt > risc_code_size)
1780 cnt = risc_code_size;
1781
1782 dprintk(2, "qla1280_setup_chip: loading risc @ =(0x%p),"
1783 "%d,%d(0x%x)\n",
1bfa11db 1784 fw_data, cnt, num, risc_address);
1da177e4 1785 for(i = 0; i < cnt; i++)
1bfa11db 1786 ((__le16 *)ha->request_ring)[i] = fw_data[i];
1da177e4
LT		 1787
1788 mb[0] = MBC_LOAD_RAM;
1789 mb[1] = risc_address;
1790 mb[4] = cnt;
1791 mb[3] = ha->request_dma & 0xffff;
1792 mb[2] = (ha->request_dma >> 16) & 0xffff;
1793 mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff;
1794 mb[6] = pci_dma_hi32(ha->request_dma) >> 16;
1795 dprintk(2, "%s: op=%d 0x%p = 0x%4x,0x%4x,0x%4x,0x%4x\n",
cadbd4a5 1796 __func__, mb[0],
1da177e4
LT		 1797 (void *)(long)ha->request_dma,
1798 mb[6], mb[7], mb[2], mb[3]);
1799 err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 |
1800 BIT_1 | BIT_0, mb);
1801 if (err) {
1802 printk(KERN_ERR "scsi(%li): Failed to load partial "
1803 "segment of f\n", ha->host_no);
1804 goto out;
1805 }
1806
1807#if DUMP_IT_BACK
1808 mb[0] = MBC_DUMP_RAM;
1809 mb[1] = risc_address;
1810 mb[4] = cnt;
1811 mb[3] = p_tbuf & 0xffff;
1812 mb[2] = (p_tbuf >> 16) & 0xffff;
1813 mb[7] = pci_dma_hi32(p_tbuf) & 0xffff;
1814 mb[6] = pci_dma_hi32(p_tbuf) >> 16;
1815
1816 err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 |
1817 BIT_1 | BIT_0, mb);
1818 if (err) {
1819 printk(KERN_ERR
1820 "Failed to dump partial segment of f/w\n");
1821 goto out;
1822 }
1823 sp = (uint8_t *)ha->request_ring;
1824 for (i = 0; i < (cnt << 1); i++) {
1825 if (tbuf[i] != sp[i] && warn++ < 10) {
1826 printk(KERN_ERR "%s: FW compare error @ "
1827 "byte(0x%x) loop#=%x\n",
cadbd4a5 1828 __func__, i, num);
1da177e4
LT		 1829 printk(KERN_ERR "%s: FWbyte=%x "
1830 "FWfromChip=%x\n",
cadbd4a5 1831 __func__, sp[i], tbuf[i]);
1da177e4
LT		 1832 /*break; */
1833 }
1834 }
1835#endif
1836 risc_address += cnt;
1837 risc_code_size = risc_code_size - cnt;
1bfa11db 1838 fw_data = fw_data + cnt;
1da177e4
LT		 1839 num++;
1840 }
1841
1842 out:
1843#if DUMP_IT_BACK
1844 pci_free_consistent(ha->pdev, 8000, tbuf, p_tbuf);
1845#endif
1846 return err;
1847}
1848
1849static int
1850qla1280_start_firmware(struct scsi_qla_host *ha)
1851{
1852 uint16_t mb[MAILBOX_REGISTER_COUNT];
1853 int err;
1854
1855 dprintk(1, "%s: Verifying checksum of loaded RISC code.\n",
cadbd4a5 1856 __func__);
1da177e4
LT		 1857
1858 /* Verify checksum of loaded RISC code. */
1859 mb[0] = MBC_VERIFY_CHECKSUM;
1860 /* mb[1] = ql12_risc_code_addr01; */
1bfa11db 1861 mb[1] = ha->fwstart;
1da177e4
LT		 1862 err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
1863 if (err) {
2b55cac3 1864 printk(KERN_ERR "scsi(%li): RISC checksum failed.\n", ha->host_no);
1da177e4
LT		 1865 return err;
1866 }
1867
1868 /* Start firmware execution. */
cadbd4a5 1869 dprintk(1, "%s: start firmware running.\n", __func__);
1da177e4 1870 mb[0] = MBC_EXECUTE_FIRMWARE;
1bfa11db 1871 mb[1] = ha->fwstart;
1da177e4
LT		 1872 err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
1873 if (err) {
1874 printk(KERN_ERR "scsi(%li): Failed to start firmware\n",
1875 ha->host_no);
1876 }
1877
1878 return err;
1879}
1880
1881static int
1882qla1280_load_firmware(struct scsi_qla_host *ha)
1883{
421e33d0 1884 /* enter with host_lock taken */
5c79d615 1885 int err;
1da177e4
LT		 1886
1887 err = qla1280_chip_diag(ha);
1888 if (err)
1889 goto out;
1890 if (IS_ISP1040(ha))
1891 err = qla1280_load_firmware_pio(ha);
1892 else
1893 err = qla1280_load_firmware_dma(ha);
1894 if (err)
1895 goto out;
1896 err = qla1280_start_firmware(ha);
1897 out:
1898 return err;
1899}
1900
1901/*
1902 * Initialize rings
1903 *
1904 * Input:
1905 * ha = adapter block pointer.
1906 * ha->request_ring = request ring virtual address
1907 * ha->response_ring = response ring virtual address
1908 * ha->request_dma = request ring physical address
1909 * ha->response_dma = response ring physical address
1910 *
1911 * Returns:
1912 * 0 = success.
1913 */
1914static int
1915qla1280_init_rings(struct scsi_qla_host *ha)
1916{
1917 uint16_t mb[MAILBOX_REGISTER_COUNT];
1918 int status = 0;
1919
1920 ENTER("qla1280_init_rings");
1921
1922 /* Clear outstanding commands array. */
1923 memset(ha->outstanding_cmds, 0,
1924 sizeof(struct srb *) * MAX_OUTSTANDING_COMMANDS);
1925
1926 /* Initialize request queue. */
1927 ha->request_ring_ptr = ha->request_ring;
1928 ha->req_ring_index = 0;
1929 ha->req_q_cnt = REQUEST_ENTRY_CNT;
1930 /* mb[0] = MBC_INIT_REQUEST_QUEUE; */
1931 mb[0] = MBC_INIT_REQUEST_QUEUE_A64;
1932 mb[1] = REQUEST_ENTRY_CNT;
1933 mb[3] = ha->request_dma & 0xffff;
1934 mb[2] = (ha->request_dma >> 16) & 0xffff;
1935 mb[4] = 0;
1936 mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff;
1937 mb[6] = pci_dma_hi32(ha->request_dma) >> 16;
1938 if (!(status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_4 |
1939 BIT_3 | BIT_2 | BIT_1 | BIT_0,
1940 &mb[0]))) {
1941 /* Initialize response queue. */
1942 ha->response_ring_ptr = ha->response_ring;
1943 ha->rsp_ring_index = 0;
1944 /* mb[0] = MBC_INIT_RESPONSE_QUEUE; */
1945 mb[0] = MBC_INIT_RESPONSE_QUEUE_A64;
1946 mb[1] = RESPONSE_ENTRY_CNT;
1947 mb[3] = ha->response_dma & 0xffff;
1948 mb[2] = (ha->response_dma >> 16) & 0xffff;
1949 mb[5] = 0;
1950 mb[7] = pci_dma_hi32(ha->response_dma) & 0xffff;
1951 mb[6] = pci_dma_hi32(ha->response_dma) >> 16;
1952 status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_5 |
1953 BIT_3 | BIT_2 | BIT_1 | BIT_0,
1954 &mb[0]);
1955 }
1956
1957 if (status)
1958 dprintk(2, "qla1280_init_rings: **** FAILED ****\n");
1959
1960 LEAVE("qla1280_init_rings");
1961 return status;
1962}
1963
1964static void
1965qla1280_print_settings(struct nvram *nv)
1966{
1967 dprintk(1, "qla1280 : initiator scsi id bus[0]=%d\n",
1968 nv->bus[0].config_1.initiator_id);
1969 dprintk(1, "qla1280 : initiator scsi id bus[1]=%d\n",
1970 nv->bus[1].config_1.initiator_id);
1971
1972 dprintk(1, "qla1280 : bus reset delay[0]=%d\n",
1973 nv->bus[0].bus_reset_delay);
1974 dprintk(1, "qla1280 : bus reset delay[1]=%d\n",
1975 nv->bus[1].bus_reset_delay);
1976
1977 dprintk(1, "qla1280 : retry count[0]=%d\n", nv->bus[0].retry_count);
1978 dprintk(1, "qla1280 : retry delay[0]=%d\n", nv->bus[0].retry_delay);
1979 dprintk(1, "qla1280 : retry count[1]=%d\n", nv->bus[1].retry_count);
1980 dprintk(1, "qla1280 : retry delay[1]=%d\n", nv->bus[1].retry_delay);
1981
1982 dprintk(1, "qla1280 : async data setup time[0]=%d\n",
1983 nv->bus[0].config_2.async_data_setup_time);
1984 dprintk(1, "qla1280 : async data setup time[1]=%d\n",
1985 nv->bus[1].config_2.async_data_setup_time);
1986
1987 dprintk(1, "qla1280 : req/ack active negation[0]=%d\n",
1988 nv->bus[0].config_2.req_ack_active_negation);
1989 dprintk(1, "qla1280 : req/ack active negation[1]=%d\n",
1990 nv->bus[1].config_2.req_ack_active_negation);
1991
1992 dprintk(1, "qla1280 : data line active negation[0]=%d\n",
1993 nv->bus[0].config_2.data_line_active_negation);
1994 dprintk(1, "qla1280 : data line active negation[1]=%d\n",
1995 nv->bus[1].config_2.data_line_active_negation);
1996
1997 dprintk(1, "qla1280 : disable loading risc code=%d\n",
1998 nv->cntr_flags_1.disable_loading_risc_code);
1999
2000 dprintk(1, "qla1280 : enable 64bit addressing=%d\n",
2001 nv->cntr_flags_1.enable_64bit_addressing);
2002
2003 dprintk(1, "qla1280 : selection timeout limit[0]=%d\n",
2004 nv->bus[0].selection_timeout);
2005 dprintk(1, "qla1280 : selection timeout limit[1]=%d\n",
2006 nv->bus[1].selection_timeout);
2007
2008 dprintk(1, "qla1280 : max queue depth[0]=%d\n",
2009 nv->bus[0].max_queue_depth);
2010 dprintk(1, "qla1280 : max queue depth[1]=%d\n",
2011 nv->bus[1].max_queue_depth);
2012}
2013
2014static void
2015qla1280_set_target_defaults(struct scsi_qla_host *ha, int bus, int target)
2016{
2017 struct nvram *nv = &ha->nvram;
2018
7a34766f
CH		 2019 nv->bus[bus].target[target].parameter.renegotiate_on_error = 1;
2020 nv->bus[bus].target[target].parameter.auto_request_sense = 1;
2021 nv->bus[bus].target[target].parameter.tag_queuing = 1;
2022 nv->bus[bus].target[target].parameter.enable_sync = 1;
1da177e4 2023#if 1 /* Some SCSI Processors do not seem to like this */
7a34766f 2024 nv->bus[bus].target[target].parameter.enable_wide = 1;
1da177e4 2025#endif
1da177e4
LT		 2026 nv->bus[bus].target[target].execution_throttle =
2027 nv->bus[bus].max_queue_depth - 1;
7a34766f
CH		 2028 nv->bus[bus].target[target].parameter.parity_checking = 1;
2029 nv->bus[bus].target[target].parameter.disconnect_allowed = 1;
1da177e4
LT		 2030
2031 if (IS_ISP1x160(ha)) {
2032 nv->bus[bus].target[target].flags.flags1x160.device_enable = 1;
2033 nv->bus[bus].target[target].flags.flags1x160.sync_offset = 0x0e;
2034 nv->bus[bus].target[target].sync_period = 9;
2035 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 1;
2036 nv->bus[bus].target[target].ppr_1x160.flags.ppr_options = 2;
2037 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width = 1;
2038 } else {
2039 nv->bus[bus].target[target].flags.flags1x80.device_enable = 1;
2040 nv->bus[bus].target[target].flags.flags1x80.sync_offset = 12;
2041 nv->bus[bus].target[target].sync_period = 10;
2042 }
2043}
2044
2045static void
2046qla1280_set_defaults(struct scsi_qla_host *ha)
2047{
2048 struct nvram *nv = &ha->nvram;
2049 int bus, target;
2050
2051 dprintk(1, "Using defaults for NVRAM: \n");
2052 memset(nv, 0, sizeof(struct nvram));
2053
2054 /* nv->cntr_flags_1.disable_loading_risc_code = 1; */
2055 nv->firmware_feature.f.enable_fast_posting = 1;
2056 nv->firmware_feature.f.disable_synchronous_backoff = 1;
0888f4c3
CH		 2057 nv->termination.scsi_bus_0_control = 3;
2058 nv->termination.scsi_bus_1_control = 3;
2059 nv->termination.auto_term_support = 1;
1da177e4
LT		 2060
2061 /*
2062 * Set default FIFO magic - What appropriate values would be here
2063 * is unknown. This is what I have found testing with 12160s.
2064 *
2065 * Now, I would love the magic decoder ring for this one, the
2066 * header file provided by QLogic seems to be bogus or incomplete
2067 * at best.
2068 */
0888f4c3
CH		 2069 nv->isp_config.burst_enable = 1;
2070 if (IS_ISP1040(ha))
2071 nv->isp_config.fifo_threshold |= 3;
2072 else
2073 nv->isp_config.fifo_threshold |= 4;
2074
1da177e4
LT		 2075 if (IS_ISP1x160(ha))
2076 nv->isp_parameter = 0x01; /* fast memory enable */
2077
2078 for (bus = 0; bus < MAX_BUSES; bus++) {
2079 nv->bus[bus].config_1.initiator_id = 7;
2080 nv->bus[bus].config_2.req_ack_active_negation = 1;
2081 nv->bus[bus].config_2.data_line_active_negation = 1;
2082 nv->bus[bus].selection_timeout = 250;
af5741c6 2083 nv->bus[bus].max_queue_depth = 32;
1da177e4
LT		 2084
2085 if (IS_ISP1040(ha)) {
2086 nv->bus[bus].bus_reset_delay = 3;
2087 nv->bus[bus].config_2.async_data_setup_time = 6;
2088 nv->bus[bus].retry_delay = 1;
2089 } else {
2090 nv->bus[bus].bus_reset_delay = 5;
2091 nv->bus[bus].config_2.async_data_setup_time = 8;
2092 }
2093
2094 for (target = 0; target < MAX_TARGETS; target++)
2095 qla1280_set_target_defaults(ha, bus, target);
2096 }
2097}
2098
2099static int
2100qla1280_config_target(struct scsi_qla_host *ha, int bus, int target)
2101{
2102 struct nvram *nv = &ha->nvram;
2103 uint16_t mb[MAILBOX_REGISTER_COUNT];
2104 int status, lun;
7a34766f 2105 uint16_t flag;
1da177e4
LT		 2106
2107 /* Set Target Parameters. */
2108 mb[0] = MBC_SET_TARGET_PARAMETERS;
7a34766f 2109 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
1da177e4
LT		 2110
2111 /*
7a34766f
CH		 2112 * Do not enable sync and ppr for the initial INQUIRY run. We
2113 * enable this later if we determine the target actually
2114 * supports it.
1da177e4 2115 */
7a34766f
CH		 2116 mb[2] = (TP_RENEGOTIATE | TP_AUTO_REQUEST_SENSE | TP_TAGGED_QUEUE
2117 | TP_WIDE | TP_PARITY | TP_DISCONNECT);
1da177e4
LT		 2118
2119 if (IS_ISP1x160(ha))
2120 mb[3] = nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8;
2121 else
2122 mb[3] = nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8;
2123 mb[3] |= nv->bus[bus].target[target].sync_period;
7a34766f 2124 status = qla1280_mailbox_command(ha, 0x0f, mb);
1da177e4
LT		 2125
2126 /* Save Tag queuing enable flag. */
af5741c6 2127 flag = (BIT_0 << target);
7a34766f
CH		 2128 if (nv->bus[bus].target[target].parameter.tag_queuing)
2129 ha->bus_settings[bus].qtag_enables |= flag;
1da177e4
LT		 2130
2131 /* Save Device enable flag. */
2132 if (IS_ISP1x160(ha)) {
2133 if (nv->bus[bus].target[target].flags.flags1x160.device_enable)
7a34766f 2134 ha->bus_settings[bus].device_enables |= flag;
1da177e4
LT		 2135 ha->bus_settings[bus].lun_disables |= 0;
2136 } else {
2137 if (nv->bus[bus].target[target].flags.flags1x80.device_enable)
7a34766f 2138 ha->bus_settings[bus].device_enables |= flag;
1da177e4
LT		 2139 /* Save LUN disable flag. */
2140 if (nv->bus[bus].target[target].flags.flags1x80.lun_disable)
7a34766f 2141 ha->bus_settings[bus].lun_disables |= flag;
1da177e4
LT		 2142 }
2143
2144 /* Set Device Queue Parameters. */
2145 for (lun = 0; lun < MAX_LUNS; lun++) {
2146 mb[0] = MBC_SET_DEVICE_QUEUE;
7a34766f
CH		 2147 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
2148 mb[1] |= lun;
1da177e4
LT		 2149 mb[2] = nv->bus[bus].max_queue_depth;
2150 mb[3] = nv->bus[bus].target[target].execution_throttle;
7a34766f 2151 status |= qla1280_mailbox_command(ha, 0x0f, mb);
1da177e4
LT		 2152 }
2153
2154 return status;
2155}
2156
2157static int
2158qla1280_config_bus(struct scsi_qla_host *ha, int bus)
2159{
2160 struct nvram *nv = &ha->nvram;
2161 uint16_t mb[MAILBOX_REGISTER_COUNT];
2162 int target, status;
2163
2164 /* SCSI Reset Disable. */
2165 ha->bus_settings[bus].disable_scsi_reset =
2166 nv->bus[bus].config_1.scsi_reset_disable;
2167
2168 /* Initiator ID. */
2169 ha->bus_settings[bus].id = nv->bus[bus].config_1.initiator_id;
2170 mb[0] = MBC_SET_INITIATOR_ID;
2171 mb[1] = bus ? ha->bus_settings[bus].id | BIT_7 :
2172 ha->bus_settings[bus].id;
2173 status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2174
2175 /* Reset Delay. */
2176 ha->bus_settings[bus].bus_reset_delay =
2177 nv->bus[bus].bus_reset_delay;
2178
2179 /* Command queue depth per device. */
2180 ha->bus_settings[bus].hiwat = nv->bus[bus].max_queue_depth - 1;
2181
2182 /* Set target parameters. */
2183 for (target = 0; target < MAX_TARGETS; target++)
2184 status |= qla1280_config_target(ha, bus, target);
2185
2186 return status;
2187}
2188
2189static int
2190qla1280_nvram_config(struct scsi_qla_host *ha)
2191{
2192 struct device_reg __iomem *reg = ha->iobase;
2193 struct nvram *nv = &ha->nvram;
2194 int bus, target, status = 0;
2195 uint16_t mb[MAILBOX_REGISTER_COUNT];
1da177e4
LT		 2196
2197 ENTER("qla1280_nvram_config");
2198
2199 if (ha->nvram_valid) {
2200 /* Always force AUTO sense for LINUX SCSI */
2201 for (bus = 0; bus < MAX_BUSES; bus++)
2202 for (target = 0; target < MAX_TARGETS; target++) {
7a34766f 2203 nv->bus[bus].target[target].parameter.
1da177e4
LT		 2204 auto_request_sense = 1;
2205 }
2206 } else {
2207 qla1280_set_defaults(ha);
2208 }
2209
2210 qla1280_print_settings(nv);
2211
2212 /* Disable RISC load of firmware. */
2213 ha->flags.disable_risc_code_load =
2214 nv->cntr_flags_1.disable_loading_risc_code;
2215
2216 if (IS_ISP1040(ha)) {
2217 uint16_t hwrev, cfg1, cdma_conf, ddma_conf;
2218
2219 hwrev = RD_REG_WORD(&reg->cfg_0) & ISP_CFG0_HWMSK;
2220
0888f4c3 2221 cfg1 = RD_REG_WORD(&reg->cfg_1) & ~(BIT_4 | BIT_5 | BIT_6);
1da177e4
LT		 2222 cdma_conf = RD_REG_WORD(&reg->cdma_cfg);
2223 ddma_conf = RD_REG_WORD(&reg->ddma_cfg);
2224
2225 /* Busted fifo, says mjacob. */
0888f4c3
CH		 2226 if (hwrev != ISP_CFG0_1040A)
2227 cfg1 |= nv->isp_config.fifo_threshold << 4;
2228
2229 cfg1 |= nv->isp_config.burst_enable << 2;
2230 WRT_REG_WORD(&reg->cfg_1, cfg1);
1da177e4
LT		 2231
2232 WRT_REG_WORD(&reg->cdma_cfg, cdma_conf | CDMA_CONF_BENAB);
2233 WRT_REG_WORD(&reg->ddma_cfg, cdma_conf | DDMA_CONF_BENAB);
2234 } else {
0888f4c3
CH		 2235 uint16_t cfg1, term;
2236
1da177e4 2237 /* Set ISP hardware DMA burst */
0888f4c3
CH		 2238 cfg1 = nv->isp_config.fifo_threshold << 4;
2239 cfg1 |= nv->isp_config.burst_enable << 2;
1da177e4
LT		 2240 /* Enable DMA arbitration on dual channel controllers */
2241 if (ha->ports > 1)
0888f4c3
CH		 2242 cfg1 |= BIT_13;
2243 WRT_REG_WORD(&reg->cfg_1, cfg1);
1da177e4
LT		 2244
2245 /* Set SCSI termination. */
0888f4c3
CH		 2246 WRT_REG_WORD(&reg->gpio_enable,
2247 BIT_7 | BIT_3 | BIT_2 | BIT_1 | BIT_0);
2248 term = nv->termination.scsi_bus_1_control;
2249 term |= nv->termination.scsi_bus_0_control << 2;
2250 term |= nv->termination.auto_term_support << 7;
2251 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2252 WRT_REG_WORD(&reg->gpio_data, term);
1da177e4 2253 }
0888f4c3 2254 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
1da177e4
LT		 2255
2256 /* ISP parameter word. */
2257 mb[0] = MBC_SET_SYSTEM_PARAMETER;
2258 mb[1] = nv->isp_parameter;
2259 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2260
2261 if (IS_ISP1x40(ha)) {
2262 /* clock rate - for qla1240 and older, only */
2263 mb[0] = MBC_SET_CLOCK_RATE;
2264 mb[1] = 40;
2265 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2266 }
2267
2268 /* Firmware feature word. */
2269 mb[0] = MBC_SET_FIRMWARE_FEATURES;
7a34766f
CH		 2270 mb[1] = nv->firmware_feature.f.enable_fast_posting;
2271 mb[1] |= nv->firmware_feature.f.report_lvd_bus_transition << 1;
2272 mb[1] |= nv->firmware_feature.f.disable_synchronous_backoff << 5;
1da177e4
LT		 2273#if defined(CONFIG_IA64_GENERIC) || defined (CONFIG_IA64_SGI_SN2)
2274 if (ia64_platform_is("sn2")) {
2275 printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA "
2276 "workaround\n", ha->host_no);
7a34766f 2277 mb[1] |= nv->firmware_feature.f.unused_9 << 9; /* XXX */
1da177e4
LT		 2278 }
2279#endif
7a34766f 2280 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
1da177e4
LT		 2281
2282 /* Retry count and delay. */
2283 mb[0] = MBC_SET_RETRY_COUNT;
2284 mb[1] = nv->bus[0].retry_count;
2285 mb[2] = nv->bus[0].retry_delay;
2286 mb[6] = nv->bus[1].retry_count;
2287 mb[7] = nv->bus[1].retry_delay;
2288 status |= qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_2 |
2289 BIT_1 | BIT_0, &mb[0]);
2290
2291 /* ASYNC data setup time. */
2292 mb[0] = MBC_SET_ASYNC_DATA_SETUP;
2293 mb[1] = nv->bus[0].config_2.async_data_setup_time;
2294 mb[2] = nv->bus[1].config_2.async_data_setup_time;
2295 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2296
2297 /* Active negation states. */
2298 mb[0] = MBC_SET_ACTIVE_NEGATION;
2299 mb[1] = 0;
2300 if (nv->bus[0].config_2.req_ack_active_negation)
2301 mb[1] |= BIT_5;
2302 if (nv->bus[0].config_2.data_line_active_negation)
2303 mb[1] |= BIT_4;
2304 mb[2] = 0;
2305 if (nv->bus[1].config_2.req_ack_active_negation)
2306 mb[2] |= BIT_5;
2307 if (nv->bus[1].config_2.data_line_active_negation)
2308 mb[2] |= BIT_4;
7a34766f 2309 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
1da177e4
LT		 2310
2311 mb[0] = MBC_SET_DATA_OVERRUN_RECOVERY;
2312 mb[1] = 2; /* Reset SCSI bus and return all outstanding IO */
7a34766f 2313 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
1da177e4
LT		 2314
2315 /* thingy */
2316 mb[0] = MBC_SET_PCI_CONTROL;
7a34766f
CH		 2317 mb[1] = BIT_1; /* Data DMA Channel Burst Enable */
2318 mb[2] = BIT_1; /* Command DMA Channel Burst Enable */
2319 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
1da177e4
LT		 2320
2321 mb[0] = MBC_SET_TAG_AGE_LIMIT;
2322 mb[1] = 8;
7a34766f 2323 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
1da177e4
LT		 2324
2325 /* Selection timeout. */
2326 mb[0] = MBC_SET_SELECTION_TIMEOUT;
2327 mb[1] = nv->bus[0].selection_timeout;
2328 mb[2] = nv->bus[1].selection_timeout;
7a34766f 2329 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
1da177e4
LT		 2330
2331 for (bus = 0; bus < ha->ports; bus++)
2332 status |= qla1280_config_bus(ha, bus);
2333
2334 if (status)
2335 dprintk(2, "qla1280_nvram_config: **** FAILED ****\n");
2336
2337 LEAVE("qla1280_nvram_config");
2338 return status;
2339}
2340
2341/*
2342 * Get NVRAM data word
2343 * Calculates word position in NVRAM and calls request routine to
2344 * get the word from NVRAM.
2345 *
2346 * Input:
2347 * ha = adapter block pointer.
2348 * address = NVRAM word address.
2349 *
2350 * Returns:
2351 * data word.
2352 */
2353static uint16_t
2354qla1280_get_nvram_word(struct scsi_qla_host *ha, uint32_t address)
2355{
2356 uint32_t nv_cmd;
2357 uint16_t data;
2358
2359 nv_cmd = address << 16;
2360 nv_cmd |= NV_READ_OP;
2361
2362 data = le16_to_cpu(qla1280_nvram_request(ha, nv_cmd));
2363
2364 dprintk(8, "qla1280_get_nvram_word: exiting normally NVRAM data = "
2365 "0x%x", data);
2366
2367 return data;
2368}
2369
2370/*
2371 * NVRAM request
2372 * Sends read command to NVRAM and gets data from NVRAM.
2373 *
2374 * Input:
2375 * ha = adapter block pointer.
2376 * nv_cmd = Bit 26 = start bit
2377 * Bit 25, 24 = opcode
2378 * Bit 23-16 = address
2379 * Bit 15-0 = write data
2380 *
2381 * Returns:
2382 * data word.
2383 */
2384static uint16_t
2385qla1280_nvram_request(struct scsi_qla_host *ha, uint32_t nv_cmd)
2386{
2387 struct device_reg __iomem *reg = ha->iobase;
2388 int cnt;
2389 uint16_t data = 0;
2390 uint16_t reg_data;
2391
2392 /* Send command to NVRAM. */
2393
2394 nv_cmd <<= 5;
2395 for (cnt = 0; cnt < 11; cnt++) {
2396 if (nv_cmd & BIT_31)
2397 qla1280_nv_write(ha, NV_DATA_OUT);
2398 else
2399 qla1280_nv_write(ha, 0);
2400 nv_cmd <<= 1;
2401 }
2402
2403 /* Read data from NVRAM. */
2404
2405 for (cnt = 0; cnt < 16; cnt++) {
2406 WRT_REG_WORD(&reg->nvram, (NV_SELECT | NV_CLOCK));
2407 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2408 NVRAM_DELAY();
2409 data <<= 1;
2410 reg_data = RD_REG_WORD(&reg->nvram);
2411 if (reg_data & NV_DATA_IN)
2412 data |= BIT_0;
2413 WRT_REG_WORD(&reg->nvram, NV_SELECT);
2414 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2415 NVRAM_DELAY();
2416 }
2417
2418 /* Deselect chip. */
2419
2420 WRT_REG_WORD(&reg->nvram, NV_DESELECT);
2421 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2422 NVRAM_DELAY();
2423
2424 return data;
2425}
2426
2427static void
2428qla1280_nv_write(struct scsi_qla_host *ha, uint16_t data)
2429{
2430 struct device_reg __iomem *reg = ha->iobase;
2431
2432 WRT_REG_WORD(&reg->nvram, data | NV_SELECT);
2433 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2434 NVRAM_DELAY();
2435 WRT_REG_WORD(&reg->nvram, data | NV_SELECT | NV_CLOCK);
2436 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2437 NVRAM_DELAY();
2438 WRT_REG_WORD(&reg->nvram, data | NV_SELECT);
2439 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2440 NVRAM_DELAY();
2441}
2442
2443/*
2444 * Mailbox Command
2445 * Issue mailbox command and waits for completion.
2446 *
2447 * Input:
2448 * ha = adapter block pointer.
2449 * mr = mailbox registers to load.
2450 * mb = data pointer for mailbox registers.
2451 *
2452 * Output:
2453 * mb[MAILBOX_REGISTER_COUNT] = returned mailbox data.
2454 *
2455 * Returns:
2456 * 0 = success
2457 */
2458static int
2459qla1280_mailbox_command(struct scsi_qla_host *ha, uint8_t mr, uint16_t *mb)
2460{
2461 struct device_reg __iomem *reg = ha->iobase;
1da177e4
LT		 2462 int status = 0;
2463 int cnt;
2464 uint16_t *optr, *iptr;
2465 uint16_t __iomem *mptr;
2466 uint16_t data;
6e9a4738 2467 DECLARE_COMPLETION_ONSTACK(wait);
1da177e4
LT		 2468 struct timer_list timer;
2469
2470 ENTER("qla1280_mailbox_command");
2471
2472 if (ha->mailbox_wait) {
2473 printk(KERN_ERR "Warning mailbox wait already in use!\n");
2474 }
2475 ha->mailbox_wait = &wait;
2476
2477 /*
2478 * We really should start out by verifying that the mailbox is
2479 * available before starting sending the command data
2480 */
2481 /* Load mailbox registers. */
2482 mptr = (uint16_t __iomem *) &reg->mailbox0;
2483 iptr = mb;
2484 for (cnt = 0; cnt < MAILBOX_REGISTER_COUNT; cnt++) {
2485 if (mr & BIT_0) {
2486 WRT_REG_WORD(mptr, (*iptr));
2487 }
2488
2489 mr >>= 1;
2490 mptr++;
2491 iptr++;
2492 }
2493
2494 /* Issue set host interrupt command. */
2495
2496 /* set up a timer just in case we're really jammed */
762a86a9 2497 init_timer_on_stack(&timer);
1da177e4
LT		 2498 timer.expires = jiffies + 20*HZ;
2499 timer.data = (unsigned long)ha;
2500 timer.function = qla1280_mailbox_timeout;
2501 add_timer(&timer);
2502
2dbb04c6 2503 spin_unlock_irq(ha->host->host_lock);
1da177e4
LT		 2504 WRT_REG_WORD(&reg->host_cmd, HC_SET_HOST_INT);
2505 data = qla1280_debounce_register(&reg->istatus);
2506
2507 wait_for_completion(&wait);
2508 del_timer_sync(&timer);
2509
2dbb04c6 2510 spin_lock_irq(ha->host->host_lock);
1da177e4
LT		 2511
2512 ha->mailbox_wait = NULL;
2513
2514 /* Check for mailbox command timeout. */
2515 if (ha->mailbox_out[0] != MBS_CMD_CMP) {
2516 printk(KERN_WARNING "qla1280_mailbox_command: Command failed, "
2517 "mailbox0 = 0x%04x, mailbox_out0 = 0x%04x, istatus = "
2518 "0x%04x\n",
2519 mb[0], ha->mailbox_out[0], RD_REG_WORD(&reg->istatus));
2520 printk(KERN_WARNING "m0 %04x, m1 %04x, m2 %04x, m3 %04x\n",
2521 RD_REG_WORD(&reg->mailbox0), RD_REG_WORD(&reg->mailbox1),
2522 RD_REG_WORD(&reg->mailbox2), RD_REG_WORD(&reg->mailbox3));
2523 printk(KERN_WARNING "m4 %04x, m5 %04x, m6 %04x, m7 %04x\n",
2524 RD_REG_WORD(&reg->mailbox4), RD_REG_WORD(&reg->mailbox5),
2525 RD_REG_WORD(&reg->mailbox6), RD_REG_WORD(&reg->mailbox7));
2526 status = 1;
2527 }
2528
2529 /* Load return mailbox registers. */
2530 optr = mb;
2531 iptr = (uint16_t *) &ha->mailbox_out[0];
2532 mr = MAILBOX_REGISTER_COUNT;
2533 memcpy(optr, iptr, MAILBOX_REGISTER_COUNT * sizeof(uint16_t));
2534
1da177e4
LT		 2535 if (ha->flags.reset_marker)
2536 qla1280_rst_aen(ha);
2537
1da177e4
LT		 2538 if (status)
2539 dprintk(2, "qla1280_mailbox_command: **** FAILED, mailbox0 = "
2540 "0x%x ****\n", mb[0]);
2541
2542 LEAVE("qla1280_mailbox_command");
2543 return status;
2544}
2545
2546/*
2547 * qla1280_poll
2548 * Polls ISP for interrupts.
2549 *
2550 * Input:
2551 * ha = adapter block pointer.
2552 */
2553static void
2554qla1280_poll(struct scsi_qla_host *ha)
2555{
2556 struct device_reg __iomem *reg = ha->iobase;
2557 uint16_t data;
2558 LIST_HEAD(done_q);
2559
2560 /* ENTER("qla1280_poll"); */
2561
2562 /* Check for pending interrupts. */
2563 data = RD_REG_WORD(&reg->istatus);
2564 if (data & RISC_INT)
2565 qla1280_isr(ha, &done_q);
2566
2567 if (!ha->mailbox_wait) {
2568 if (ha->flags.reset_marker)
2569 qla1280_rst_aen(ha);
2570 }
2571
2572 if (!list_empty(&done_q))
2573 qla1280_done(ha);
2574
2575 /* LEAVE("qla1280_poll"); */
2576}
2577
2578/*
2579 * qla1280_bus_reset
2580 * Issue SCSI bus reset.
2581 *
2582 * Input:
2583 * ha = adapter block pointer.
2584 * bus = SCSI bus number.
2585 *
2586 * Returns:
2587 * 0 = success
2588 */
2589static int
2590qla1280_bus_reset(struct scsi_qla_host *ha, int bus)
2591{
2592 uint16_t mb[MAILBOX_REGISTER_COUNT];
2593 uint16_t reset_delay;
2594 int status;
2595
2596 dprintk(3, "qla1280_bus_reset: entered\n");
2597
2598 if (qla1280_verbose)
2599 printk(KERN_INFO "scsi(%li:%i): Resetting SCSI BUS\n",
2600 ha->host_no, bus);
2601
2602 reset_delay = ha->bus_settings[bus].bus_reset_delay;
2603 mb[0] = MBC_BUS_RESET;
2604 mb[1] = reset_delay;
2605 mb[2] = (uint16_t) bus;
2606 status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2607
2608 if (status) {
2609 if (ha->bus_settings[bus].failed_reset_count > 2)
2610 ha->bus_settings[bus].scsi_bus_dead = 1;
2611 ha->bus_settings[bus].failed_reset_count++;
2612 } else {
2dbb04c6 2613 spin_unlock_irq(ha->host->host_lock);
117e4b27 2614 ssleep(reset_delay);
2dbb04c6 2615 spin_lock_irq(ha->host->host_lock);
1da177e4
LT		 2616
2617 ha->bus_settings[bus].scsi_bus_dead = 0;
2618 ha->bus_settings[bus].failed_reset_count = 0;
2619 ha->bus_settings[bus].reset_marker = 0;
2620 /* Issue marker command. */
2621 qla1280_marker(ha, bus, 0, 0, MK_SYNC_ALL);
2622 }
2623
2624 /*
2625 * We should probably call qla1280_set_target_parameters()
2626 * here as well for all devices on the bus.
2627 */
2628
2629 if (status)
2630 dprintk(2, "qla1280_bus_reset: **** FAILED ****\n");
2631 else
2632 dprintk(3, "qla1280_bus_reset: exiting normally\n");
2633
2634 return status;
2635}
2636
2637/*
2638 * qla1280_device_reset
2639 * Issue bus device reset message to the target.
2640 *
2641 * Input:
2642 * ha = adapter block pointer.
2643 * bus = SCSI BUS number.
2644 * target = SCSI ID.
2645 *
2646 * Returns:
2647 * 0 = success
2648 */
2649static int
2650qla1280_device_reset(struct scsi_qla_host *ha, int bus, int target)
2651{
2652 uint16_t mb[MAILBOX_REGISTER_COUNT];
2653 int status;
2654
2655 ENTER("qla1280_device_reset");
2656
2657 mb[0] = MBC_ABORT_TARGET;
2658 mb[1] = (bus ? (target | BIT_7) : target) << 8;
2659 mb[2] = 1;
2660 status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2661
2662 /* Issue marker command. */
2663 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
2664
2665 if (status)
2666 dprintk(2, "qla1280_device_reset: **** FAILED ****\n");
2667
2668 LEAVE("qla1280_device_reset");
2669 return status;
2670}
2671
1da177e4
LT		 2672/*
2673 * qla1280_abort_command
2674 * Abort command aborts a specified IOCB.
2675 *
2676 * Input:
2677 * ha = adapter block pointer.
2678 * sp = SB structure pointer.
2679 *
2680 * Returns:
2681 * 0 = success
2682 */
2683static int
2684qla1280_abort_command(struct scsi_qla_host *ha, struct srb * sp, int handle)
2685{
2686 uint16_t mb[MAILBOX_REGISTER_COUNT];
2687 unsigned int bus, target, lun;
2688 int status;
2689
2690 ENTER("qla1280_abort_command");
2691
2692 bus = SCSI_BUS_32(sp->cmd);
2693 target = SCSI_TCN_32(sp->cmd);
2694 lun = SCSI_LUN_32(sp->cmd);
2695
2696 sp->flags |= SRB_ABORT_PENDING;
2697
2698 mb[0] = MBC_ABORT_COMMAND;
2699 mb[1] = (bus ? target | BIT_7 : target) << 8 | lun;
2700 mb[2] = handle >> 16;
2701 mb[3] = handle & 0xffff;
2702 status = qla1280_mailbox_command(ha, 0x0f, &mb[0]);
2703
2704 if (status) {
2705 dprintk(2, "qla1280_abort_command: **** FAILED ****\n");
2706 sp->flags &= ~SRB_ABORT_PENDING;
2707 }
2708
2709
2710 LEAVE("qla1280_abort_command");
2711 return status;
2712}
2713
2714/*
2715 * qla1280_reset_adapter
2716 * Reset adapter.
2717 *
2718 * Input:
2719 * ha = adapter block pointer.
2720 */
2721static void
2722qla1280_reset_adapter(struct scsi_qla_host *ha)
2723{
2724 struct device_reg __iomem *reg = ha->iobase;
2725
2726 ENTER("qla1280_reset_adapter");
2727
2728 /* Disable ISP chip */
2729 ha->flags.online = 0;
2730 WRT_REG_WORD(&reg->ictrl, ISP_RESET);
2731 WRT_REG_WORD(&reg->host_cmd,
2732 HC_RESET_RISC | HC_RELEASE_RISC | HC_DISABLE_BIOS);
2733 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2734
2735 LEAVE("qla1280_reset_adapter");
2736}
2737
2738/*
2739 * Issue marker command.
2740 * Function issues marker IOCB.
2741 *
2742 * Input:
2743 * ha = adapter block pointer.
2744 * bus = SCSI BUS number
2745 * id = SCSI ID
2746 * lun = SCSI LUN
2747 * type = marker modifier
2748 */
2749static void
2750qla1280_marker(struct scsi_qla_host *ha, int bus, int id, int lun, u8 type)
2751{
2752 struct mrk_entry *pkt;
2753
2754 ENTER("qla1280_marker");
2755
2756 /* Get request packet. */
2757 if ((pkt = (struct mrk_entry *) qla1280_req_pkt(ha))) {
2758 pkt->entry_type = MARKER_TYPE;
2759 pkt->lun = (uint8_t) lun;
2760 pkt->target = (uint8_t) (bus ? (id | BIT_7) : id);
2761 pkt->modifier = type;
2762 pkt->entry_status = 0;
2763
2764 /* Issue command to ISP */
2765 qla1280_isp_cmd(ha);
2766 }
2767
2768 LEAVE("qla1280_marker");
2769}
2770
2771
2772/*
2773 * qla1280_64bit_start_scsi
2774 * The start SCSI is responsible for building request packets on
2775 * request ring and modifying ISP input pointer.
2776 *
2777 * Input:
2778 * ha = adapter block pointer.
2779 * sp = SB structure pointer.
2780 *
2781 * Returns:
2782 * 0 = success, was able to issue command.
2783 */
2784#ifdef QLA_64BIT_PTR
2785static int
2786qla1280_64bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
2787{
2788 struct device_reg __iomem *reg = ha->iobase;
2789 struct scsi_cmnd *cmd = sp->cmd;
2790 cmd_a64_entry_t *pkt;
8d6810d3 2791 __le32 *dword_ptr;
1da177e4
LT		 2792 dma_addr_t dma_handle;
2793 int status = 0;
2794 int cnt;
2795 int req_cnt;
5c1da582 2796 int seg_cnt;
1da177e4
LT		 2797 u8 dir;
2798
2799 ENTER("qla1280_64bit_start_scsi:");
2800
2801 /* Calculate number of entries and segments required. */
2802 req_cnt = 1;
5c1da582
JS		 2803 seg_cnt = scsi_dma_map(cmd);
2804 if (seg_cnt > 0) {
1da177e4
LT		 2805 if (seg_cnt > 2) {
2806 req_cnt += (seg_cnt - 2) / 5;
2807 if ((seg_cnt - 2) % 5)
2808 req_cnt++;
2809 }
5c1da582
JS		 2810 } else if (seg_cnt < 0) {
2811 status = 1;
2812 goto out;
1da177e4
LT		 2813 }
2814
2815 if ((req_cnt + 2) >= ha->req_q_cnt) {
2816 /* Calculate number of free request entries. */
2817 cnt = RD_REG_WORD(&reg->mailbox4);
2818 if (ha->req_ring_index < cnt)
2819 ha->req_q_cnt = cnt - ha->req_ring_index;
2820 else
2821 ha->req_q_cnt =
2822 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
2823 }
2824
2b55cac3
CH		 2825 dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
2826 ha->req_q_cnt, seg_cnt);
2827
1da177e4
LT		 2828 /* If room for request in request ring. */
2829 if ((req_cnt + 2) >= ha->req_q_cnt) {
fd65e5e9 2830 status = SCSI_MLQUEUE_HOST_BUSY;
2b55cac3 2831 dprintk(2, "qla1280_start_scsi: in-ptr=0x%x req_q_cnt="
1da177e4
LT		 2832 "0x%xreq_cnt=0x%x", ha->req_ring_index, ha->req_q_cnt,
2833 req_cnt);
2834 goto out;
2835 }
2836
2837 /* Check for room in outstanding command list. */
2838 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
9bcf0910 2839 ha->outstanding_cmds[cnt] != NULL; cnt++);
1da177e4
LT		 2840
2841 if (cnt >= MAX_OUTSTANDING_COMMANDS) {
fd65e5e9 2842 status = SCSI_MLQUEUE_HOST_BUSY;
2b55cac3 2843 dprintk(2, "qla1280_start_scsi: NO ROOM IN "
1da177e4
LT		 2844 "OUTSTANDING ARRAY, req_q_cnt=0x%x", ha->req_q_cnt);
2845 goto out;
2846 }
2847
2848 ha->outstanding_cmds[cnt] = sp;
2849 ha->req_q_cnt -= req_cnt;
2850 CMD_HANDLE(sp->cmd) = (unsigned char *)(unsigned long)(cnt + 1);
2851
2b55cac3 2852 dprintk(2, "start: cmd=%p sp=%p CDB=%xm, handle %lx\n", cmd, sp,
1da177e4
LT		 2853 cmd->cmnd[0], (long)CMD_HANDLE(sp->cmd));
2854 dprintk(2, " bus %i, target %i, lun %i\n",
2855 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
2856 qla1280_dump_buffer(2, cmd->cmnd, MAX_COMMAND_SIZE);
2857
2858 /*
2859 * Build command packet.
2860 */
2861 pkt = (cmd_a64_entry_t *) ha->request_ring_ptr;
2862
2863 pkt->entry_type = COMMAND_A64_TYPE;
2864 pkt->entry_count = (uint8_t) req_cnt;
2865 pkt->sys_define = (uint8_t) ha->req_ring_index;
2866 pkt->entry_status = 0;
2867 pkt->handle = cpu_to_le32(cnt);
2868
2869 /* Zero out remaining portion of packet. */
2870 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
2871
2872 /* Set ISP command timeout. */
242f9dcb 2873 pkt->timeout = cpu_to_le16(cmd->request->timeout/HZ);
1da177e4
LT		 2874
2875 /* Set device target ID and LUN */
2876 pkt->lun = SCSI_LUN_32(cmd);
2877 pkt->target = SCSI_BUS_32(cmd) ?
2878 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
2879
2880 /* Enable simple tag queuing if device supports it. */
2dbb04c6 2881 if (cmd->device->simple_tags)
1da177e4
LT		 2882 pkt->control_flags |= cpu_to_le16(BIT_3);
2883
2884 /* Load SCSI command packet. */
2885 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
64a87b24 2886 memcpy(pkt->scsi_cdb, CMD_CDBP(cmd), CMD_CDBLEN(cmd));
1da177e4
LT		 2887 /* dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
2888
2889 /* Set transfer direction. */
2890 dir = qla1280_data_direction(cmd);
2891 pkt->control_flags |= cpu_to_le16(dir);
2892
2893 /* Set total data segment count. */
2894 pkt->dseg_count = cpu_to_le16(seg_cnt);
2895
2896 /*
2897 * Load data segments.
2898 */
2899 if (seg_cnt) { /* If data transfer. */
5c1da582 2900 struct scatterlist *sg, *s;
a0441891 2901 int remseg = seg_cnt;
5c1da582
JS		 2902
2903 sg = scsi_sglist(cmd);
2904
1da177e4
LT		 2905 /* Setup packet address segment pointer. */
2906 dword_ptr = (u32 *)&pkt->dseg_0_address;
2907
5c1da582
JS		 2908 /* Load command entry data segments. */
2909 for_each_sg(sg, s, seg_cnt, cnt) {
2910 if (cnt == 2)
2911 break;
2912
2913 dma_handle = sg_dma_address(s);
2914#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
2915 if (ha->flags.use_pci_vchannel)
2916 sn_pci_set_vchan(ha->pdev,
2917 (unsigned long *)&dma_handle,
2918 SCSI_BUS_32(cmd));
2919#endif
2920 *dword_ptr++ =
2921 cpu_to_le32(pci_dma_lo32(dma_handle));
2922 *dword_ptr++ =
2923 cpu_to_le32(pci_dma_hi32(dma_handle));
2924 *dword_ptr++ = cpu_to_le32(sg_dma_len(s));
2925 dprintk(3, "S/G Segment phys_addr=%x %x, len=0x%x\n",
2926 cpu_to_le32(pci_dma_hi32(dma_handle)),
2927 cpu_to_le32(pci_dma_lo32(dma_handle)),
2928 cpu_to_le32(sg_dma_len(sg_next(s))));
2929 remseg--;
2930 }
2931 dprintk(5, "qla1280_64bit_start_scsi: Scatter/gather "
2932 "command packet data - b %i, t %i, l %i \n",
2933 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd),
2934 SCSI_LUN_32(cmd));
2935 qla1280_dump_buffer(5, (char *)pkt,
2936 REQUEST_ENTRY_SIZE);
2937
2938 /*
2939 * Build continuation packets.
2940 */
2941 dprintk(3, "S/G Building Continuation...seg_cnt=0x%x "
2942 "remains\n", seg_cnt);
2943
2944 while (remseg > 0) {
2945 /* Update sg start */
2946 sg = s;
2947 /* Adjust ring index. */
2948 ha->req_ring_index++;
2949 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
2950 ha->req_ring_index = 0;
2951 ha->request_ring_ptr =
2952 ha->request_ring;
2953 } else
2954 ha->request_ring_ptr++;
2955
2956 pkt = (cmd_a64_entry_t *)ha->request_ring_ptr;
2957
2958 /* Zero out packet. */
2959 memset(pkt, 0, REQUEST_ENTRY_SIZE);
2960
2961 /* Load packet defaults. */
2962 ((struct cont_a64_entry *) pkt)->entry_type =
2963 CONTINUE_A64_TYPE;
2964 ((struct cont_a64_entry *) pkt)->entry_count = 1;
2965 ((struct cont_a64_entry *) pkt)->sys_define =
2966 (uint8_t)ha->req_ring_index;
2967 /* Setup packet address segment pointer. */
2968 dword_ptr =
2969 (u32 *)&((struct cont_a64_entry *) pkt)->dseg_0_address;
2970
2971 /* Load continuation entry data segments. */
2972 for_each_sg(sg, s, remseg, cnt) {
2973 if (cnt == 5)
a0441891
JA		 2974 break;
2975 dma_handle = sg_dma_address(s);
1da177e4
LT		 2976#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
2977 if (ha->flags.use_pci_vchannel)
2978 sn_pci_set_vchan(ha->pdev,
5c1da582 2979 (unsigned long *)&dma_handle,
1da177e4
LT		 2980 SCSI_BUS_32(cmd));
2981#endif
2982 *dword_ptr++ =
2983 cpu_to_le32(pci_dma_lo32(dma_handle));
2984 *dword_ptr++ =
2985 cpu_to_le32(pci_dma_hi32(dma_handle));
5c1da582
JS		 2986 *dword_ptr++ =
2987 cpu_to_le32(sg_dma_len(s));
2988 dprintk(3, "S/G Segment Cont. phys_addr=%x %x, len=0x%x\n",
1da177e4
LT		 2989 cpu_to_le32(pci_dma_hi32(dma_handle)),
2990 cpu_to_le32(pci_dma_lo32(dma_handle)),
5c1da582 2991 cpu_to_le32(sg_dma_len(s)));
1da177e4 2992 }
5c1da582
JS		 2993 remseg -= cnt;
2994 dprintk(5, "qla1280_64bit_start_scsi: "
2995 "continuation packet data - b %i, t "
2996 "%i, l %i \n", SCSI_BUS_32(cmd),
2997 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
1da177e4
LT		 2998 qla1280_dump_buffer(5, (char *)pkt,
2999 REQUEST_ENTRY_SIZE);
3000 }
3001 } else { /* No data transfer */
3002 dprintk(5, "qla1280_64bit_start_scsi: No data, command "
3003 "packet data - b %i, t %i, l %i \n",
3004 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
3005 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
3006 }
3007 /* Adjust ring index. */
3008 ha->req_ring_index++;
3009 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3010 ha->req_ring_index = 0;
3011 ha->request_ring_ptr = ha->request_ring;
3012 } else
3013 ha->request_ring_ptr++;
3014
3015 /* Set chip new ring index. */
3016 dprintk(2,
3017 "qla1280_64bit_start_scsi: Wakeup RISC for pending command\n");
3018 sp->flags |= SRB_SENT;
3019 ha->actthreads++;
3020 WRT_REG_WORD(&reg->mailbox4, ha->req_ring_index);
3021 /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */
3022 mmiowb();
3023
3024 out:
3025 if (status)
3026 dprintk(2, "qla1280_64bit_start_scsi: **** FAILED ****\n");
3027 else
3028 dprintk(3, "qla1280_64bit_start_scsi: exiting normally\n");
3029
3030 return status;
3031}
3032#else /* !QLA_64BIT_PTR */
3033
3034/*
3035 * qla1280_32bit_start_scsi
3036 * The start SCSI is responsible for building request packets on
3037 * request ring and modifying ISP input pointer.
3038 *
3039 * The Qlogic firmware interface allows every queue slot to have a SCSI
3040 * command and up to 4 scatter/gather (SG) entries. If we need more
3041 * than 4 SG entries, then continuation entries are used that can
3042 * hold another 7 entries each. The start routine determines if there
3043 * is eought empty slots then build the combination of requests to
3044 * fulfill the OS request.
3045 *
3046 * Input:
3047 * ha = adapter block pointer.
3048 * sp = SCSI Request Block structure pointer.
3049 *
3050 * Returns:
3051 * 0 = success, was able to issue command.
3052 */
3053static int
3054qla1280_32bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
3055{
3056 struct device_reg __iomem *reg = ha->iobase;
3057 struct scsi_cmnd *cmd = sp->cmd;
3058 struct cmd_entry *pkt;
8d6810d3 3059 __le32 *dword_ptr;
1da177e4
LT		 3060 int status = 0;
3061 int cnt;
3062 int req_cnt;
5c1da582 3063 int seg_cnt;
1da177e4
LT		 3064 u8 dir;
3065
3066 ENTER("qla1280_32bit_start_scsi");
3067
3068 dprintk(1, "32bit_start: cmd=%p sp=%p CDB=%x\n", cmd, sp,
3069 cmd->cmnd[0]);
3070
3071 /* Calculate number of entries and segments required. */
3a43e69c 3072 req_cnt = 1;
5c1da582
JS		 3073 seg_cnt = scsi_dma_map(cmd);
3074 if (seg_cnt) {
1da177e4
LT		 3075 /*
3076 * if greater than four sg entries then we need to allocate
3077 * continuation entries
3078 */
3079 if (seg_cnt > 4) {
3080 req_cnt += (seg_cnt - 4) / 7;
3081 if ((seg_cnt - 4) % 7)
3082 req_cnt++;
3083 }
3084 dprintk(3, "S/G Transfer cmd=%p seg_cnt=0x%x, req_cnt=%x\n",
3085 cmd, seg_cnt, req_cnt);
5c1da582
JS		 3086 } else if (seg_cnt < 0) {
3087 status = 1;
3088 goto out;
1da177e4
LT		 3089 }
3090
3091 if ((req_cnt + 2) >= ha->req_q_cnt) {
3092 /* Calculate number of free request entries. */
3093 cnt = RD_REG_WORD(&reg->mailbox4);
3094 if (ha->req_ring_index < cnt)
3095 ha->req_q_cnt = cnt - ha->req_ring_index;
3096 else
3097 ha->req_q_cnt =
3098 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
3099 }
3100
3101 dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
3102 ha->req_q_cnt, seg_cnt);
3103 /* If room for request in request ring. */
3104 if ((req_cnt + 2) >= ha->req_q_cnt) {
fd65e5e9 3105 status = SCSI_MLQUEUE_HOST_BUSY;
1da177e4
LT		 3106 dprintk(2, "qla1280_32bit_start_scsi: in-ptr=0x%x, "
3107 "req_q_cnt=0x%x, req_cnt=0x%x", ha->req_ring_index,
3108 ha->req_q_cnt, req_cnt);
3109 goto out;
3110 }
3111
3112 /* Check for empty slot in outstanding command list. */
3113 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
3114 (ha->outstanding_cmds[cnt] != 0); cnt++) ;
3115
3116 if (cnt >= MAX_OUTSTANDING_COMMANDS) {
fd65e5e9 3117 status = SCSI_MLQUEUE_HOST_BUSY;
1da177e4
LT		 3118 dprintk(2, "qla1280_32bit_start_scsi: NO ROOM IN OUTSTANDING "
3119 "ARRAY, req_q_cnt=0x%x\n", ha->req_q_cnt);
3120 goto out;
3121 }
3122
3123 CMD_HANDLE(sp->cmd) = (unsigned char *) (unsigned long)(cnt + 1);
3124 ha->outstanding_cmds[cnt] = sp;
3125 ha->req_q_cnt -= req_cnt;
3126
3127 /*
3128 * Build command packet.
3129 */
3130 pkt = (struct cmd_entry *) ha->request_ring_ptr;
3131
3132 pkt->entry_type = COMMAND_TYPE;
3133 pkt->entry_count = (uint8_t) req_cnt;
3134 pkt->sys_define = (uint8_t) ha->req_ring_index;
3135 pkt->entry_status = 0;
3136 pkt->handle = cpu_to_le32(cnt);
3137
3138 /* Zero out remaining portion of packet. */
3139 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
3140
3141 /* Set ISP command timeout. */
242f9dcb 3142 pkt->timeout = cpu_to_le16(cmd->request->timeout/HZ);
1da177e4
LT		 3143
3144 /* Set device target ID and LUN */
3145 pkt->lun = SCSI_LUN_32(cmd);
3146 pkt->target = SCSI_BUS_32(cmd) ?
3147 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
3148
3149 /* Enable simple tag queuing if device supports it. */
2dbb04c6 3150 if (cmd->device->simple_tags)
1da177e4
LT		 3151 pkt->control_flags |= cpu_to_le16(BIT_3);
3152
3153 /* Load SCSI command packet. */
3154 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
64a87b24 3155 memcpy(pkt->scsi_cdb, CMD_CDBP(cmd), CMD_CDBLEN(cmd));
1da177e4
LT		 3156
3157 /*dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
3158 /* Set transfer direction. */
3159 dir = qla1280_data_direction(cmd);
3160 pkt->control_flags |= cpu_to_le16(dir);
3161
3162 /* Set total data segment count. */
3163 pkt->dseg_count = cpu_to_le16(seg_cnt);
3164
3165 /*
3166 * Load data segments.
3167 */
3168 if (seg_cnt) {
5c1da582 3169 struct scatterlist *sg, *s;
a0441891 3170 int remseg = seg_cnt;
5c1da582
JS		 3171
3172 sg = scsi_sglist(cmd);
3173
1da177e4
LT		 3174 /* Setup packet address segment pointer. */
3175 dword_ptr = &pkt->dseg_0_address;
3176
5c1da582
JS		 3177 dprintk(3, "Building S/G data segments..\n");
3178 qla1280_dump_buffer(1, (char *)sg, 4 * 16);
3179
3180 /* Load command entry data segments. */
3181 for_each_sg(sg, s, seg_cnt, cnt) {
3182 if (cnt == 4)
3183 break;
3184 *dword_ptr++ =
3185 cpu_to_le32(pci_dma_lo32(sg_dma_address(s)));
3186 *dword_ptr++ = cpu_to_le32(sg_dma_len(s));
3187 dprintk(3, "S/G Segment phys_addr=0x%lx, len=0x%x\n",
3188 (pci_dma_lo32(sg_dma_address(s))),
3189 (sg_dma_len(s)));
3190 remseg--;
3191 }
3192 /*
3193 * Build continuation packets.
3194 */
3195 dprintk(3, "S/G Building Continuation"
3196 "...seg_cnt=0x%x remains\n", seg_cnt);
3197 while (remseg > 0) {
3198 /* Continue from end point */
3199 sg = s;
3200 /* Adjust ring index. */
3201 ha->req_ring_index++;
3202 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3203 ha->req_ring_index = 0;
3204 ha->request_ring_ptr =
3205 ha->request_ring;
3206 } else
3207 ha->request_ring_ptr++;
3208
3209 pkt = (struct cmd_entry *)ha->request_ring_ptr;
3210
3211 /* Zero out packet. */
3212 memset(pkt, 0, REQUEST_ENTRY_SIZE);
3213
3214 /* Load packet defaults. */
3215 ((struct cont_entry *) pkt)->
3216 entry_type = CONTINUE_TYPE;
3217 ((struct cont_entry *) pkt)->entry_count = 1;
3218
3219 ((struct cont_entry *) pkt)->sys_define =
3220 (uint8_t) ha->req_ring_index;
1da177e4 3221
5c1da582
JS		 3222 /* Setup packet address segment pointer. */
3223 dword_ptr =
3224 &((struct cont_entry *) pkt)->dseg_0_address;
3225
3226 /* Load continuation entry data segments. */
3227 for_each_sg(sg, s, remseg, cnt) {
3228 if (cnt == 7)
a0441891 3229 break;
1da177e4 3230 *dword_ptr++ =
a0441891 3231 cpu_to_le32(pci_dma_lo32(sg_dma_address(s)));
5c1da582
JS		 3232 *dword_ptr++ =
3233 cpu_to_le32(sg_dma_len(s));
3234 dprintk(1,
3235 "S/G Segment Cont. phys_addr=0x%x, "
3236 "len=0x%x\n",
3237 cpu_to_le32(pci_dma_lo32(sg_dma_address(s))),
3238 cpu_to_le32(sg_dma_len(s)));
1da177e4 3239 }
5c1da582
JS		 3240 remseg -= cnt;
3241 dprintk(5, "qla1280_32bit_start_scsi: "
3242 "continuation packet data - "
3243 "scsi(%i:%i:%i)\n", SCSI_BUS_32(cmd),
3244 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
3245 qla1280_dump_buffer(5, (char *)pkt,
3246 REQUEST_ENTRY_SIZE);
1da177e4
LT		 3247 }
3248 } else { /* No data transfer at all */
3249 dprintk(5, "qla1280_32bit_start_scsi: No data, command "
3250 "packet data - \n");
3251 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
3252 }
3253 dprintk(5, "qla1280_32bit_start_scsi: First IOCB block:\n");
3254 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
3255 REQUEST_ENTRY_SIZE);
3256
3257 /* Adjust ring index. */
3258 ha->req_ring_index++;
3259 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3260 ha->req_ring_index = 0;
3261 ha->request_ring_ptr = ha->request_ring;
3262 } else
3263 ha->request_ring_ptr++;
3264
3265 /* Set chip new ring index. */
3266 dprintk(2, "qla1280_32bit_start_scsi: Wakeup RISC "
3267 "for pending command\n");
3268 sp->flags |= SRB_SENT;
3269 ha->actthreads++;
3270 WRT_REG_WORD(&reg->mailbox4, ha->req_ring_index);
3271 /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */
3272 mmiowb();
3273
3274out:
3275 if (status)
3276 dprintk(2, "qla1280_32bit_start_scsi: **** FAILED ****\n");
3277
3278 LEAVE("qla1280_32bit_start_scsi");
3279
3280 return status;
3281}
3282#endif
3283
3284/*
3285 * qla1280_req_pkt
3286 * Function is responsible for locking ring and
3287 * getting a zeroed out request packet.
3288 *
3289 * Input:
3290 * ha = adapter block pointer.
3291 *
3292 * Returns:
3293 * 0 = failed to get slot.
3294 */
3295static request_t *
3296qla1280_req_pkt(struct scsi_qla_host *ha)
3297{
3298 struct device_reg __iomem *reg = ha->iobase;
3299 request_t *pkt = NULL;
3300 int cnt;
3301 uint32_t timer;
3302
3303 ENTER("qla1280_req_pkt");
3304
3305 /*
3306 * This can be called from interrupt context, damn it!!!
3307 */
3308 /* Wait for 30 seconds for slot. */
3309 for (timer = 15000000; timer; timer--) {
3310 if (ha->req_q_cnt > 0) {
3311 /* Calculate number of free request entries. */
3312 cnt = RD_REG_WORD(&reg->mailbox4);
3313 if (ha->req_ring_index < cnt)
3314 ha->req_q_cnt = cnt - ha->req_ring_index;
3315 else
3316 ha->req_q_cnt =
3317 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
3318 }
3319
3320 /* Found empty request ring slot? */
3321 if (ha->req_q_cnt > 0) {
3322 ha->req_q_cnt--;
3323 pkt = ha->request_ring_ptr;
3324
3325 /* Zero out packet. */
3326 memset(pkt, 0, REQUEST_ENTRY_SIZE);
3327
3328 /*
3329 * How can this be right when we have a ring
3330 * size of 512???
3331 */
3332 /* Set system defined field. */
3333 pkt->sys_define = (uint8_t) ha->req_ring_index;
3334
3335 /* Set entry count. */
3336 pkt->entry_count = 1;
3337
3338 break;
3339 }
3340
3341 udelay(2); /* 10 */
3342
3343 /* Check for pending interrupts. */
3344 qla1280_poll(ha);
3345 }
3346
3347 if (!pkt)
3348 dprintk(2, "qla1280_req_pkt: **** FAILED ****\n");
3349 else
3350 dprintk(3, "qla1280_req_pkt: exiting normally\n");
3351
3352 return pkt;
3353}
3354
3355/*
3356 * qla1280_isp_cmd
3357 * Function is responsible for modifying ISP input pointer.
3358 * Releases ring lock.
3359 *
3360 * Input:
3361 * ha = adapter block pointer.
3362 */
3363static void
3364qla1280_isp_cmd(struct scsi_qla_host *ha)
3365{
3366 struct device_reg __iomem *reg = ha->iobase;
3367
3368 ENTER("qla1280_isp_cmd");
3369
3370 dprintk(5, "qla1280_isp_cmd: IOCB data:\n");
3371 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
3372 REQUEST_ENTRY_SIZE);
3373
3374 /* Adjust ring index. */
3375 ha->req_ring_index++;
3376 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3377 ha->req_ring_index = 0;
3378 ha->request_ring_ptr = ha->request_ring;
3379 } else
3380 ha->request_ring_ptr++;
3381
3382 /*
3383 * Update request index to mailbox4 (Request Queue In).
3384 * The mmiowb() ensures that this write is ordered with writes by other
3385 * CPUs. Without the mmiowb(), it is possible for the following:
3386 * CPUA posts write of index 5 to mailbox4
3387 * CPUA releases host lock
3388 * CPUB acquires host lock
3389 * CPUB posts write of index 6 to mailbox4
3390 * On PCI bus, order reverses and write of 6 posts, then index 5,
3391 * causing chip to issue full queue of stale commands
3392 * The mmiowb() prevents future writes from crossing the barrier.
3393 * See Documentation/DocBook/deviceiobook.tmpl for more information.
3394 */
3395 WRT_REG_WORD(&reg->mailbox4, ha->req_ring_index);
3396 mmiowb();
3397
3398 LEAVE("qla1280_isp_cmd");
3399}
3400
3401/****************************************************************************/
3402/* Interrupt Service Routine. */
3403/****************************************************************************/
3404
3405/****************************************************************************
3406 * qla1280_isr
3407 * Calls I/O done on command completion.
3408 *
3409 * Input:
3410 * ha = adapter block pointer.
3411 * done_q = done queue.
3412 ****************************************************************************/
3413static void
3414qla1280_isr(struct scsi_qla_host *ha, struct list_head *done_q)
3415{
3416 struct device_reg __iomem *reg = ha->iobase;
3417 struct response *pkt;
3418 struct srb *sp = NULL;
3419 uint16_t mailbox[MAILBOX_REGISTER_COUNT];
3420 uint16_t *wptr;
3421 uint32_t index;
3422 u16 istatus;
3423
3424 ENTER("qla1280_isr");
3425
3426 istatus = RD_REG_WORD(&reg->istatus);
3427 if (!(istatus & (RISC_INT | PCI_INT)))
3428 return;
3429
3430 /* Save mailbox register 5 */
3431 mailbox[5] = RD_REG_WORD(&reg->mailbox5);
3432
3433 /* Check for mailbox interrupt. */
3434
3435 mailbox[0] = RD_REG_WORD_dmasync(&reg->semaphore);
3436
3437 if (mailbox[0] & BIT_0) {
3438 /* Get mailbox data. */
3439 /* dprintk(1, "qla1280_isr: In Get mailbox data \n"); */
3440
3441 wptr = &mailbox[0];
3442 *wptr++ = RD_REG_WORD(&reg->mailbox0);
3443 *wptr++ = RD_REG_WORD(&reg->mailbox1);
3444 *wptr = RD_REG_WORD(&reg->mailbox2);
3445 if (mailbox[0] != MBA_SCSI_COMPLETION) {
3446 wptr++;
3447 *wptr++ = RD_REG_WORD(&reg->mailbox3);
3448 *wptr++ = RD_REG_WORD(&reg->mailbox4);
3449 wptr++;
3450 *wptr++ = RD_REG_WORD(&reg->mailbox6);
3451 *wptr = RD_REG_WORD(&reg->mailbox7);
3452 }
3453
3454 /* Release mailbox registers. */
3455
3456 WRT_REG_WORD(&reg->semaphore, 0);
3457 WRT_REG_WORD(&reg->host_cmd, HC_CLR_RISC_INT);
3458
3459 dprintk(5, "qla1280_isr: mailbox interrupt mailbox[0] = 0x%x",
3460 mailbox[0]);
3461
3462 /* Handle asynchronous event */
3463 switch (mailbox[0]) {
3464 case MBA_SCSI_COMPLETION: /* Response completion */
3465 dprintk(5, "qla1280_isr: mailbox SCSI response "
3466 "completion\n");
3467
3468 if (ha->flags.online) {
3469 /* Get outstanding command index. */
3470 index = mailbox[2] << 16 | mailbox[1];
3471
3472 /* Validate handle. */
3473 if (index < MAX_OUTSTANDING_COMMANDS)
3474 sp = ha->outstanding_cmds[index];
3475 else
3476 sp = NULL;
3477
3478 if (sp) {
3479 /* Free outstanding command slot. */
3480 ha->outstanding_cmds[index] = NULL;
3481
3482 /* Save ISP completion status */
3483 CMD_RESULT(sp->cmd) = 0;
413e6e18 3484 CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE;
1da177e4
LT		 3485
3486 /* Place block on done queue */
3487 list_add_tail(&sp->list, done_q);
3488 } else {
3489 /*
3490 * If we get here we have a real problem!
3491 */
3492 printk(KERN_WARNING
fd65e5e9 3493 "qla1280: ISP invalid handle\n");
1da177e4
LT		 3494 }
3495 }
3496 break;
3497
3498 case MBA_BUS_RESET: /* SCSI Bus Reset */
3499 ha->flags.reset_marker = 1;
3500 index = mailbox[6] & BIT_0;
3501 ha->bus_settings[index].reset_marker = 1;
3502
3503 printk(KERN_DEBUG "qla1280_isr(): index %i "
3504 "asynchronous BUS_RESET\n", index);
3505 break;
3506
3507 case MBA_SYSTEM_ERR: /* System Error */
3508 printk(KERN_WARNING
3509 "qla1280: ISP System Error - mbx1=%xh, mbx2="
3510 "%xh, mbx3=%xh\n", mailbox[1], mailbox[2],
3511 mailbox[3]);
3512 break;
3513
3514 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
3515 printk(KERN_WARNING
3516 "qla1280: ISP Request Transfer Error\n");
3517 break;
3518
3519 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
3520 printk(KERN_WARNING
3521 "qla1280: ISP Response Transfer Error\n");
3522 break;
3523
3524 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
3525 dprintk(2, "qla1280_isr: asynchronous WAKEUP_THRES\n");
3526 break;
3527
3528 case MBA_TIMEOUT_RESET: /* Execution Timeout Reset */
3529 dprintk(2,
3530 "qla1280_isr: asynchronous TIMEOUT_RESET\n");
3531 break;
3532
3533 case MBA_DEVICE_RESET: /* Bus Device Reset */
3534 printk(KERN_INFO "qla1280_isr(): asynchronous "
3535 "BUS_DEVICE_RESET\n");
3536
3537 ha->flags.reset_marker = 1;
3538 index = mailbox[6] & BIT_0;
3539 ha->bus_settings[index].reset_marker = 1;
3540 break;
3541
3542 case MBA_BUS_MODE_CHANGE:
3543 dprintk(2,
3544 "qla1280_isr: asynchronous BUS_MODE_CHANGE\n");
3545 break;
3546
3547 default:
3548 /* dprintk(1, "qla1280_isr: default case of switch MB \n"); */
3549 if (mailbox[0] < MBA_ASYNC_EVENT) {
3550 wptr = &mailbox[0];
3551 memcpy((uint16_t *) ha->mailbox_out, wptr,
3552 MAILBOX_REGISTER_COUNT *
3553 sizeof(uint16_t));
3554
3555 if(ha->mailbox_wait != NULL)
3556 complete(ha->mailbox_wait);
3557 }
3558 break;
3559 }
3560 } else {
3561 WRT_REG_WORD(&reg->host_cmd, HC_CLR_RISC_INT);
3562 }
3563
3564 /*
3565 * We will receive interrupts during mailbox testing prior to
3566 * the card being marked online, hence the double check.
3567 */
3568 if (!(ha->flags.online && !ha->mailbox_wait)) {
3569 dprintk(2, "qla1280_isr: Response pointer Error\n");
3570 goto out;
3571 }
3572
3573 if (mailbox[5] >= RESPONSE_ENTRY_CNT)
3574 goto out;
3575
3576 while (ha->rsp_ring_index != mailbox[5]) {
3577 pkt = ha->response_ring_ptr;
3578
3579 dprintk(5, "qla1280_isr: ha->rsp_ring_index = 0x%x, mailbox[5]"
3580 " = 0x%x\n", ha->rsp_ring_index, mailbox[5]);
3581 dprintk(5,"qla1280_isr: response packet data\n");
3582 qla1280_dump_buffer(5, (char *)pkt, RESPONSE_ENTRY_SIZE);
3583
3584 if (pkt->entry_type == STATUS_TYPE) {
3585 if ((le16_to_cpu(pkt->scsi_status) & 0xff)
3586 || pkt->comp_status || pkt->entry_status) {
3587 dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
3588 "0x%x mailbox[5] = 0x%x, comp_status "
3589 "= 0x%x, scsi_status = 0x%x\n",
3590 ha->rsp_ring_index, mailbox[5],
3591 le16_to_cpu(pkt->comp_status),
3592 le16_to_cpu(pkt->scsi_status));
3593 }
3594 } else {
3595 dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
3596 "0x%x, mailbox[5] = 0x%x\n",
3597 ha->rsp_ring_index, mailbox[5]);
3598 dprintk(2, "qla1280_isr: response packet data\n");
3599 qla1280_dump_buffer(2, (char *)pkt,
3600 RESPONSE_ENTRY_SIZE);
3601 }
3602
3603 if (pkt->entry_type == STATUS_TYPE || pkt->entry_status) {
3604 dprintk(2, "status: Cmd %p, handle %i\n",
3605 ha->outstanding_cmds[pkt->handle]->cmd,
3606 pkt->handle);
3607 if (pkt->entry_type == STATUS_TYPE)
3608 qla1280_status_entry(ha, pkt, done_q);
3609 else
3610 qla1280_error_entry(ha, pkt, done_q);
3611 /* Adjust ring index. */
3612 ha->rsp_ring_index++;
3613 if (ha->rsp_ring_index == RESPONSE_ENTRY_CNT) {
3614 ha->rsp_ring_index = 0;
3615 ha->response_ring_ptr = ha->response_ring;
3616 } else
3617 ha->response_ring_ptr++;
3618 WRT_REG_WORD(&reg->mailbox5, ha->rsp_ring_index);
3619 }
3620 }
3621
3622 out:
3623 LEAVE("qla1280_isr");
3624}
3625
3626/*
3627 * qla1280_rst_aen
3628 * Processes asynchronous reset.
3629 *
3630 * Input:
3631 * ha = adapter block pointer.
3632 */
3633static void
3634qla1280_rst_aen(struct scsi_qla_host *ha)
3635{
3636 uint8_t bus;
3637
3638 ENTER("qla1280_rst_aen");
3639
3640 if (ha->flags.online && !ha->flags.reset_active &&
3641 !ha->flags.abort_isp_active) {
3642 ha->flags.reset_active = 1;
3643 while (ha->flags.reset_marker) {
3644 /* Issue marker command. */
3645 ha->flags.reset_marker = 0;
3646 for (bus = 0; bus < ha->ports &&
3647 !ha->flags.reset_marker; bus++) {
3648 if (ha->bus_settings[bus].reset_marker) {
3649 ha->bus_settings[bus].reset_marker = 0;
3650 qla1280_marker(ha, bus, 0, 0,
3651 MK_SYNC_ALL);
3652 }
3653 }
3654 }
3655 }
3656
3657 LEAVE("qla1280_rst_aen");
3658}
3659
3660
1da177e4
LT		 3661/*
3662 * qla1280_status_entry
3663 * Processes received ISP status entry.
3664 *
3665 * Input:
3666 * ha = adapter block pointer.
3667 * pkt = entry pointer.
3668 * done_q = done queue.
3669 */
3670static void
3671qla1280_status_entry(struct scsi_qla_host *ha, struct response *pkt,
3672 struct list_head *done_q)
3673{
3674 unsigned int bus, target, lun;
3675 int sense_sz;
3676 struct srb *sp;
3677 struct scsi_cmnd *cmd;
3678 uint32_t handle = le32_to_cpu(pkt->handle);
3679 uint16_t scsi_status = le16_to_cpu(pkt->scsi_status);
3680 uint16_t comp_status = le16_to_cpu(pkt->comp_status);
3681
3682 ENTER("qla1280_status_entry");
3683
3684 /* Validate handle. */
3685 if (handle < MAX_OUTSTANDING_COMMANDS)
3686 sp = ha->outstanding_cmds[handle];
3687 else
3688 sp = NULL;
3689
3690 if (!sp) {
3691 printk(KERN_WARNING "qla1280: Status Entry invalid handle\n");
3692 goto out;
3693 }
3694
3695 /* Free outstanding command slot. */
3696 ha->outstanding_cmds[handle] = NULL;
3697
3698 cmd = sp->cmd;
3699
3700 /* Generate LU queue on cntrl, target, LUN */
3701 bus = SCSI_BUS_32(cmd);
3702 target = SCSI_TCN_32(cmd);
3703 lun = SCSI_LUN_32(cmd);
3704
3705 if (comp_status || scsi_status) {
3706 dprintk(3, "scsi: comp_status = 0x%x, scsi_status = "
3707 "0x%x, handle = 0x%x\n", comp_status,
3708 scsi_status, handle);
3709 }
3710
7d0e11fb
JH		 3711 /* Target busy or queue full */
3712 if ((scsi_status & 0xFF) == SAM_STAT_TASK_SET_FULL ||
3713 (scsi_status & 0xFF) == SAM_STAT_BUSY) {
3714 CMD_RESULT(cmd) = scsi_status & 0xff;
1da177e4
LT		 3715 } else {
3716
3717 /* Save ISP completion status */
3718 CMD_RESULT(cmd) = qla1280_return_status(pkt, cmd);
3719
d6db3e8d 3720 if (scsi_status & SAM_STAT_CHECK_CONDITION) {
1da177e4
LT		 3721 if (comp_status != CS_ARS_FAILED) {
3722 uint16_t req_sense_length =
3723 le16_to_cpu(pkt->req_sense_length);
3724 if (req_sense_length < CMD_SNSLEN(cmd))
3725 sense_sz = req_sense_length;
3726 else
3727 /*
3728 * scsi_cmnd->sense_buffer is
3729 * 64 bytes, why only copy 63?
3730 * This looks wrong! /Jes
3731 */
3732 sense_sz = CMD_SNSLEN(cmd) - 1;
3733
3734 memcpy(cmd->sense_buffer,
3735 &pkt->req_sense_data, sense_sz);
3736 } else
3737 sense_sz = 0;
3738 memset(cmd->sense_buffer + sense_sz, 0,
b80ca4f7 3739 SCSI_SENSE_BUFFERSIZE - sense_sz);
1da177e4
LT		 3740
3741 dprintk(2, "qla1280_status_entry: Check "
3742 "condition Sense data, b %i, t %i, "
3743 "l %i\n", bus, target, lun);
3744 if (sense_sz)
3745 qla1280_dump_buffer(2,
3746 (char *)cmd->sense_buffer,
3747 sense_sz);
3748 }
3749 }
3750
413e6e18
MR		 3751 CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE;
3752
1da177e4
LT		 3753 /* Place command on done queue. */
3754 list_add_tail(&sp->list, done_q);
3755 out:
3756 LEAVE("qla1280_status_entry");
3757}
3758
3759/*
3760 * qla1280_error_entry
3761 * Processes error entry.
3762 *
3763 * Input:
3764 * ha = adapter block pointer.
3765 * pkt = entry pointer.
3766 * done_q = done queue.
3767 */
3768static void
3769qla1280_error_entry(struct scsi_qla_host *ha, struct response *pkt,
3770 struct list_head *done_q)
3771{
3772 struct srb *sp;
3773 uint32_t handle = le32_to_cpu(pkt->handle);
3774
3775 ENTER("qla1280_error_entry");
3776
3777 if (pkt->entry_status & BIT_3)
3778 dprintk(2, "qla1280_error_entry: BAD PAYLOAD flag error\n");
3779 else if (pkt->entry_status & BIT_2)
3780 dprintk(2, "qla1280_error_entry: BAD HEADER flag error\n");
3781 else if (pkt->entry_status & BIT_1)
3782 dprintk(2, "qla1280_error_entry: FULL flag error\n");
3783 else
3784 dprintk(2, "qla1280_error_entry: UNKNOWN flag error\n");
3785
3786 /* Validate handle. */
3787 if (handle < MAX_OUTSTANDING_COMMANDS)
3788 sp = ha->outstanding_cmds[handle];
3789 else
3790 sp = NULL;
3791
3792 if (sp) {
3793 /* Free outstanding command slot. */
3794 ha->outstanding_cmds[handle] = NULL;
3795
3796 /* Bad payload or header */
3797 if (pkt->entry_status & (BIT_3 + BIT_2)) {
3798 /* Bad payload or header, set error status. */
3799 /* CMD_RESULT(sp->cmd) = CS_BAD_PAYLOAD; */
3800 CMD_RESULT(sp->cmd) = DID_ERROR << 16;
3801 } else if (pkt->entry_status & BIT_1) { /* FULL flag */
3802 CMD_RESULT(sp->cmd) = DID_BUS_BUSY << 16;
3803 } else {
3804 /* Set error status. */
3805 CMD_RESULT(sp->cmd) = DID_ERROR << 16;
3806 }
3807
413e6e18
MR		 3808 CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE;
3809
1da177e4
LT		 3810 /* Place command on done queue. */
3811 list_add_tail(&sp->list, done_q);
3812 }
3813#ifdef QLA_64BIT_PTR
3814 else if (pkt->entry_type == COMMAND_A64_TYPE) {
3815 printk(KERN_WARNING "!qla1280: Error Entry invalid handle");
3816 }
3817#endif
3818
3819 LEAVE("qla1280_error_entry");
3820}
3821
3822/*
3823 * qla1280_abort_isp
3824 * Resets ISP and aborts all outstanding commands.
3825 *
3826 * Input:
3827 * ha = adapter block pointer.
3828 *
3829 * Returns:
3830 * 0 = success
3831 */
3832static int
3833qla1280_abort_isp(struct scsi_qla_host *ha)
3834{
3835 struct device_reg __iomem *reg = ha->iobase;
3836 struct srb *sp;
3837 int status = 0;
3838 int cnt;
3839 int bus;
3840
3841 ENTER("qla1280_abort_isp");
3842
3843 if (ha->flags.abort_isp_active || !ha->flags.online)
3844 goto out;
3845
3846 ha->flags.abort_isp_active = 1;
3847
3848 /* Disable ISP interrupts. */
3849 qla1280_disable_intrs(ha);
3850 WRT_REG_WORD(&reg->host_cmd, HC_PAUSE_RISC);
3851 RD_REG_WORD(&reg->id_l);
3852
3853 printk(KERN_INFO "scsi(%li): dequeuing outstanding commands\n",
3854 ha->host_no);
3855 /* Dequeue all commands in outstanding command list. */
3856 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
3857 struct scsi_cmnd *cmd;
3858 sp = ha->outstanding_cmds[cnt];
3859 if (sp) {
1da177e4
LT		 3860 cmd = sp->cmd;
3861 CMD_RESULT(cmd) = DID_RESET << 16;
413e6e18 3862 CMD_HANDLE(cmd) = COMPLETED_HANDLE;
1da177e4 3863 ha->outstanding_cmds[cnt] = NULL;
413e6e18 3864 list_add_tail(&sp->list, &ha->done_q);
1da177e4
LT		 3865 }
3866 }
3867
413e6e18
MR		 3868 qla1280_done(ha);
3869
1da177e4
LT		 3870 status = qla1280_load_firmware(ha);
3871 if (status)
3872 goto out;
3873
3874 /* Setup adapter based on NVRAM parameters. */
3875 qla1280_nvram_config (ha);
3876
3877 status = qla1280_init_rings(ha);
3878 if (status)
3879 goto out;
3880
3881 /* Issue SCSI reset. */
3882 for (bus = 0; bus < ha->ports; bus++)
3883 qla1280_bus_reset(ha, bus);
3884
3885 ha->flags.abort_isp_active = 0;
3886 out:
3887 if (status) {
3888 printk(KERN_WARNING
3889 "qla1280: ISP error recovery failed, board disabled");
3890 qla1280_reset_adapter(ha);
3891 dprintk(2, "qla1280_abort_isp: **** FAILED ****\n");
3892 }
3893
3894 LEAVE("qla1280_abort_isp");
3895 return status;
3896}
3897
3898
3899/*
3900 * qla1280_debounce_register
3901 * Debounce register.
3902 *
3903 * Input:
3904 * port = register address.
3905 *
3906 * Returns:
3907 * register value.
3908 */
3909static u16
3910qla1280_debounce_register(volatile u16 __iomem * addr)
3911{
3912 volatile u16 ret;
3913 volatile u16 ret2;
3914
3915 ret = RD_REG_WORD(addr);
3916 ret2 = RD_REG_WORD(addr);
3917
3918 if (ret == ret2)
3919 return ret;
3920
3921 do {
3922 cpu_relax();
3923 ret = RD_REG_WORD(addr);
3924 ret2 = RD_REG_WORD(addr);
3925 } while (ret != ret2);
3926
3927 return ret;
3928}
3929
3930
3931/************************************************************************
3932 * qla1280_check_for_dead_scsi_bus *
3933 * *
3934 * This routine checks for a dead SCSI bus *
3935 ************************************************************************/
3936#define SET_SXP_BANK 0x0100
3937#define SCSI_PHASE_INVALID 0x87FF
3938static int
3939qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *ha, unsigned int bus)
3940{
3941 uint16_t config_reg, scsi_control;
3942 struct device_reg __iomem *reg = ha->iobase;
3943
3944 if (ha->bus_settings[bus].scsi_bus_dead) {
3945 WRT_REG_WORD(&reg->host_cmd, HC_PAUSE_RISC);
3946 config_reg = RD_REG_WORD(&reg->cfg_1);
3947 WRT_REG_WORD(&reg->cfg_1, SET_SXP_BANK);
3948 scsi_control = RD_REG_WORD(&reg->scsiControlPins);
3949 WRT_REG_WORD(&reg->cfg_1, config_reg);
3950 WRT_REG_WORD(&reg->host_cmd, HC_RELEASE_RISC);
3951
3952 if (scsi_control == SCSI_PHASE_INVALID) {
3953 ha->bus_settings[bus].scsi_bus_dead = 1;
1da177e4
LT		 3954 return 1; /* bus is dead */
3955 } else {
3956 ha->bus_settings[bus].scsi_bus_dead = 0;
3957 ha->bus_settings[bus].failed_reset_count = 0;
3958 }
3959 }
3960 return 0; /* bus is not dead */
3961}
3962
3963static void
3964qla1280_get_target_parameters(struct scsi_qla_host *ha,
3965 struct scsi_device *device)
3966{
3967 uint16_t mb[MAILBOX_REGISTER_COUNT];
3968 int bus, target, lun;
3969
3970 bus = device->channel;
3971 target = device->id;
3972 lun = device->lun;
3973
3974
3975 mb[0] = MBC_GET_TARGET_PARAMETERS;
3976 mb[1] = (uint16_t) (bus ? target | BIT_7 : target);
3977 mb[1] <<= 8;
3978 qla1280_mailbox_command(ha, BIT_6 | BIT_3 | BIT_2 | BIT_1 | BIT_0,
3979 &mb[0]);
3980
3981 printk(KERN_INFO "scsi(%li:%d:%d:%d):", ha->host_no, bus, target, lun);
3982
3983 if (mb[3] != 0) {
3984 printk(" Sync: period %d, offset %d",
3985 (mb[3] & 0xff), (mb[3] >> 8));
3986 if (mb[2] & BIT_13)
3987 printk(", Wide");
3988 if ((mb[2] & BIT_5) && ((mb[6] >> 8) & 0xff) >= 2)
3989 printk(", DT");
3990 } else
3991 printk(" Async");
3992
2dbb04c6 3993 if (device->simple_tags)
1da177e4
LT		 3994 printk(", Tagged queuing: depth %d", device->queue_depth);
3995 printk("\n");
3996}
3997
3998
3999#if DEBUG_QLA1280
4000static void
4001__qla1280_dump_buffer(char *b, int size)
4002{
4003 int cnt;
4004 u8 c;
4005
4006 printk(KERN_DEBUG " 0 1 2 3 4 5 6 7 8 9 Ah "
4007 "Bh Ch Dh Eh Fh\n");
4008 printk(KERN_DEBUG "---------------------------------------------"
4009 "------------------\n");
4010
4011 for (cnt = 0; cnt < size;) {
4012 c = *b++;
4013
4014 printk("0x%02x", c);
4015 cnt++;
4016 if (!(cnt % 16))
4017 printk("\n");
4018 else
4019 printk(" ");
4020 }
4021 if (cnt % 16)
4022 printk("\n");
4023}
4024
4025/**************************************************************************
4026 * ql1280_print_scsi_cmd
4027 *
4028 **************************************************************************/
4029static void
4030__qla1280_print_scsi_cmd(struct scsi_cmnd *cmd)
4031{
4032 struct scsi_qla_host *ha;
4033 struct Scsi_Host *host = CMD_HOST(cmd);
4034 struct srb *sp;
4035 /* struct scatterlist *sg; */
4036
4037 int i;
4038 ha = (struct scsi_qla_host *)host->hostdata;
4039
4040 sp = (struct srb *)CMD_SP(cmd);
4041 printk("SCSI Command @= 0x%p, Handle=0x%p\n", cmd, CMD_HANDLE(cmd));
4042 printk(" chan=%d, target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n",
4043 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd),
4044 CMD_CDBLEN(cmd));
4045 printk(" CDB = ");
4046 for (i = 0; i < cmd->cmd_len; i++) {
4047 printk("0x%02x ", cmd->cmnd[i]);
4048 }
5c1da582 4049 printk(" seg_cnt =%d\n", scsi_sg_count(cmd));
1da177e4 4050 printk(" request buffer=0x%p, request buffer len=0x%x\n",
5c1da582 4051 scsi_sglist(cmd), scsi_bufflen(cmd));
1da177e4
LT		 4052 /* if (cmd->use_sg)
4053 {
4054 sg = (struct scatterlist *) cmd->request_buffer;
4055 printk(" SG buffer: \n");
4056 qla1280_dump_buffer(1, (char *)sg, (cmd->use_sg*sizeof(struct scatterlist)));
4057 } */
4058 printk(" tag=%d, transfersize=0x%x \n",
4059 cmd->tag, cmd->transfersize);
5cd049a5 4060 printk(" SP=0x%p\n", CMD_SP(cmd));
1da177e4
LT		 4061 printk(" underflow size = 0x%x, direction=0x%x\n",
4062 cmd->underflow, cmd->sc_data_direction);
4063}
4064
4065/**************************************************************************
4066 * ql1280_dump_device
4067 *
4068 **************************************************************************/
4069static void
4070ql1280_dump_device(struct scsi_qla_host *ha)
4071{
4072
4073 struct scsi_cmnd *cp;
4074 struct srb *sp;
4075 int i;
4076
4077 printk(KERN_DEBUG "Outstanding Commands on controller:\n");
4078
4079 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
4080 if ((sp = ha->outstanding_cmds[i]) == NULL)
4081 continue;
4082 if ((cp = sp->cmd) == NULL)
4083 continue;
4084 qla1280_print_scsi_cmd(1, cp);
4085 }
4086}
4087#endif
4088
4089
4090enum tokens {
4091 TOKEN_NVRAM,
4092 TOKEN_SYNC,
4093 TOKEN_WIDE,
4094 TOKEN_PPR,
4095 TOKEN_VERBOSE,
4096 TOKEN_DEBUG,
4097};
4098
4099struct setup_tokens {
4100 char *token;
4101 int val;
4102};
4103
4104static struct setup_tokens setup_token[] __initdata =
4105{
4106 { "nvram", TOKEN_NVRAM },
4107 { "sync", TOKEN_SYNC },
4108 { "wide", TOKEN_WIDE },
4109 { "ppr", TOKEN_PPR },
4110 { "verbose", TOKEN_VERBOSE },
4111 { "debug", TOKEN_DEBUG },
4112};
4113
4114
4115/**************************************************************************
4116 * qla1280_setup
4117 *
4118 * Handle boot parameters. This really needs to be changed so one
4119 * can specify per adapter parameters.
4120 **************************************************************************/
4121static int __init
4122qla1280_setup(char *s)
4123{
4124 char *cp, *ptr;
4125 unsigned long val;
4126 int toke;
4127
4128 cp = s;
4129
4130 while (cp && (ptr = strchr(cp, ':'))) {
4131 ptr++;
4132 if (!strcmp(ptr, "yes")) {
4133 val = 0x10000;
4134 ptr += 3;
4135 } else if (!strcmp(ptr, "no")) {
4136 val = 0;
4137 ptr += 2;
4138 } else
4139 val = simple_strtoul(ptr, &ptr, 0);
4140
4141 switch ((toke = qla1280_get_token(cp))) {
4142 case TOKEN_NVRAM:
4143 if (!val)
4144 driver_setup.no_nvram = 1;
4145 break;
4146 case TOKEN_SYNC:
4147 if (!val)
4148 driver_setup.no_sync = 1;
4149 else if (val != 0x10000)
4150 driver_setup.sync_mask = val;
4151 break;
4152 case TOKEN_WIDE:
4153 if (!val)
4154 driver_setup.no_wide = 1;
4155 else if (val != 0x10000)
4156 driver_setup.wide_mask = val;
4157 break;
4158 case TOKEN_PPR:
4159 if (!val)
4160 driver_setup.no_ppr = 1;
4161 else if (val != 0x10000)
4162 driver_setup.ppr_mask = val;
4163 break;
4164 case TOKEN_VERBOSE:
4165 qla1280_verbose = val;
4166 break;
4167 default:
4168 printk(KERN_INFO "qla1280: unknown boot option %s\n",
4169 cp);
4170 }
4171
4172 cp = strchr(ptr, ';');
4173 if (cp)
4174 cp++;
4175 else {
4176 break;
4177 }
4178 }
4179 return 1;
4180}
4181
4182
f58f8313 4183static int __init
1da177e4
LT		 4184qla1280_get_token(char *str)
4185{
4186 char *sep;
4187 long ret = -1;
6391a113 4188 int i;
1da177e4
LT		 4189
4190 sep = strchr(str, ':');
4191
4192 if (sep) {
6391a113 4193 for (i = 0; i < ARRAY_SIZE(setup_token); i++) {
1da177e4
LT		 4194 if (!strncmp(setup_token[i].token, str, (sep - str))) {
4195 ret = setup_token[i].val;
4196 break;
4197 }
4198 }
4199 }
4200
4201 return ret;
4202}
4203
2dbb04c6 4204
1da177e4
LT		 4205static struct scsi_host_template qla1280_driver_template = {
4206 .module = THIS_MODULE,
4207 .proc_name = "qla1280",
4208 .name = "Qlogic ISP 1280/12160",
4209 .info = qla1280_info,
4210 .slave_configure = qla1280_slave_configure,
4211 .queuecommand = qla1280_queuecommand,
4212 .eh_abort_handler = qla1280_eh_abort,
4213 .eh_device_reset_handler= qla1280_eh_device_reset,
4214 .eh_bus_reset_handler = qla1280_eh_bus_reset,
4215 .eh_host_reset_handler = qla1280_eh_adapter_reset,
4216 .bios_param = qla1280_biosparam,
2bcbc814 4217 .can_queue = MAX_OUTSTANDING_COMMANDS,
1da177e4
LT		 4218 .this_id = -1,
4219 .sg_tablesize = SG_ALL,
1da177e4
LT		 4220 .use_clustering = ENABLE_CLUSTERING,
4221};
2dbb04c6 4222
1da177e4 4223
6f039790 4224static int
1da177e4
LT		 4225qla1280_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
4226{
4227 int devnum = id->driver_data;
4228 struct qla_boards *bdp = &ql1280_board_tbl[devnum];
4229 struct Scsi_Host *host;
4230 struct scsi_qla_host *ha;
4231 int error = -ENODEV;
4232
4233 /* Bypass all AMI SUBSYS VENDOR IDs */
4234 if (pdev->subsystem_vendor == PCI_VENDOR_ID_AMI) {
4235 printk(KERN_INFO
4236 "qla1280: Skipping AMI SubSys Vendor ID Chip\n");
4237 goto error;
4238 }
4239
4240 printk(KERN_INFO "qla1280: %s found on PCI bus %i, dev %i\n",
4241 bdp->name, pdev->bus->number, PCI_SLOT(pdev->devfn));
4242
4243 if (pci_enable_device(pdev)) {
4244 printk(KERN_WARNING
4245 "qla1280: Failed to enabled pci device, aborting.\n");
4246 goto error;
4247 }
4248
4249 pci_set_master(pdev);
4250
4251 error = -ENOMEM;
4252 host = scsi_host_alloc(&qla1280_driver_template, sizeof(*ha));
4253 if (!host) {
4254 printk(KERN_WARNING
4255 "qla1280: Failed to register host, aborting.\n");
4256 goto error_disable_device;
4257 }
4258
4259 ha = (struct scsi_qla_host *)host->hostdata;
4260 memset(ha, 0, sizeof(struct scsi_qla_host));
4261
4262 ha->pdev = pdev;
4263 ha->devnum = devnum; /* specifies microcode load address */
4264
4265#ifdef QLA_64BIT_PTR
6a35528a 4266 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
284901a9 4267 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32))) {
1da177e4 4268 printk(KERN_WARNING "scsi(%li): Unable to set a "
2b55cac3 4269 "suitable DMA mask - aborting\n", ha->host_no);
1da177e4 4270 error = -ENODEV;
eb7a1698 4271 goto error_put_host;
1da177e4
LT		 4272 }
4273 } else
4274 dprintk(2, "scsi(%li): 64 Bit PCI Addressing Enabled\n",
4275 ha->host_no);
4276#else
284901a9 4277 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32))) {
1da177e4 4278 printk(KERN_WARNING "scsi(%li): Unable to set a "
2b55cac3 4279 "suitable DMA mask - aborting\n", ha->host_no);
1da177e4 4280 error = -ENODEV;
eb7a1698 4281 goto error_put_host;
1da177e4
LT		 4282 }
4283#endif
4284
4285 ha->request_ring = pci_alloc_consistent(ha->pdev,
2b55cac3 4286 ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)),
1da177e4
LT		 4287 &ha->request_dma);
4288 if (!ha->request_ring) {
4289 printk(KERN_INFO "qla1280: Failed to get request memory\n");
4290 goto error_put_host;
4291 }
4292
4293 ha->response_ring = pci_alloc_consistent(ha->pdev,
2b55cac3 4294 ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)),
1da177e4
LT		 4295 &ha->response_dma);
4296 if (!ha->response_ring) {
4297 printk(KERN_INFO "qla1280: Failed to get response memory\n");
4298 goto error_free_request_ring;
4299 }
4300
4301 ha->ports = bdp->numPorts;
4302
4303 ha->host = host;
4304 ha->host_no = host->host_no;
4305
4306 host->irq = pdev->irq;
4307 host->max_channel = bdp->numPorts - 1;
4308 host->max_lun = MAX_LUNS - 1;
4309 host->max_id = MAX_TARGETS;
4310 host->max_sectors = 1024;
4311 host->unique_id = host->host_no;
4312
1da177e4
LT		 4313 error = -ENODEV;
4314
4315#if MEMORY_MAPPED_IO
25729a7f 4316 ha->mmpbase = pci_ioremap_bar(ha->pdev, 1);
1da177e4
LT		 4317 if (!ha->mmpbase) {
4318 printk(KERN_INFO "qla1280: Unable to map I/O memory\n");
4319 goto error_free_response_ring;
4320 }
4321
4322 host->base = (unsigned long)ha->mmpbase;
4323 ha->iobase = (struct device_reg __iomem *)ha->mmpbase;
4324#else
4325 host->io_port = pci_resource_start(ha->pdev, 0);
4326 if (!request_region(host->io_port, 0xff, "qla1280")) {
4327 printk(KERN_INFO "qla1280: Failed to reserve i/o region "
4328 "0x%04lx-0x%04lx - already in use\n",
4329 host->io_port, host->io_port + 0xff);
4330 goto error_free_response_ring;
4331 }
4332
4333 ha->iobase = (struct device_reg *)host->io_port;
4334#endif
4335
4336 INIT_LIST_HEAD(&ha->done_q);
4337
4338 /* Disable ISP interrupts. */
4339 qla1280_disable_intrs(ha);
4340
1d6f359a 4341 if (request_irq(pdev->irq, qla1280_intr_handler, IRQF_SHARED,
1da177e4
LT		 4342 "qla1280", ha)) {
4343 printk("qla1280 : Failed to reserve interrupt %d already "
4344 "in use\n", pdev->irq);
4345 goto error_release_region;
4346 }
4347
4348 /* load the F/W, read paramaters, and init the H/W */
4349 if (qla1280_initialize_adapter(ha)) {
4350 printk(KERN_INFO "qla1x160: Failed to initialize adapter\n");
4351 goto error_free_irq;
4352 }
4353
4354 /* set our host ID (need to do something about our two IDs) */
4355 host->this_id = ha->bus_settings[0].id;
4356
4357 pci_set_drvdata(pdev, host);
4358
1da177e4
LT		 4359 error = scsi_add_host(host, &pdev->dev);
4360 if (error)
4361 goto error_disable_adapter;
4362 scsi_scan_host(host);
1da177e4
LT		 4363
4364 return 0;
4365
1da177e4 4366 error_disable_adapter:
8af50dcd 4367 qla1280_disable_intrs(ha);
1da177e4
LT		 4368 error_free_irq:
4369 free_irq(pdev->irq, ha);
4370 error_release_region:
4371#if MEMORY_MAPPED_IO
4372 iounmap(ha->mmpbase);
4373#else
4374 release_region(host->io_port, 0xff);
4375#endif
4376 error_free_response_ring:
4377 pci_free_consistent(ha->pdev,
2b55cac3 4378 ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)),
1da177e4
LT		 4379 ha->response_ring, ha->response_dma);
4380 error_free_request_ring:
4381 pci_free_consistent(ha->pdev,
2b55cac3 4382 ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)),
1da177e4
LT		 4383 ha->request_ring, ha->request_dma);
4384 error_put_host:
4385 scsi_host_put(host);
4386 error_disable_device:
4387 pci_disable_device(pdev);
4388 error:
4389 return error;
4390}
4391
4392
6f039790 4393static void
1da177e4
LT		 4394qla1280_remove_one(struct pci_dev *pdev)
4395{
4396 struct Scsi_Host *host = pci_get_drvdata(pdev);
4397 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
4398
1da177e4 4399 scsi_remove_host(host);
1da177e4 4400
8af50dcd 4401 qla1280_disable_intrs(ha);
1da177e4
LT		 4402
4403 free_irq(pdev->irq, ha);
4404
4405#if MEMORY_MAPPED_IO
4406 iounmap(ha->mmpbase);
4407#else
4408 release_region(host->io_port, 0xff);
4409#endif
4410
4411 pci_free_consistent(ha->pdev,
4412 ((REQUEST_ENTRY_CNT + 1) * (sizeof(request_t))),
4413 ha->request_ring, ha->request_dma);
4414 pci_free_consistent(ha->pdev,
4415 ((RESPONSE_ENTRY_CNT + 1) * (sizeof(struct response))),
4416 ha->response_ring, ha->response_dma);
4417
4418 pci_disable_device(pdev);
4419
4420 scsi_host_put(host);
4421}
4422
1da177e4
LT		 4423static struct pci_driver qla1280_pci_driver = {
4424 .name = "qla1280",
4425 .id_table = qla1280_pci_tbl,
4426 .probe = qla1280_probe_one,
6f039790 4427 .remove = qla1280_remove_one,
1da177e4
LT		 4428};
4429
4430static int __init
4431qla1280_init(void)
4432{
4433 if (sizeof(struct srb) > sizeof(struct scsi_pointer)) {
4434 printk(KERN_WARNING
4435 "qla1280: struct srb too big, aborting\n");
4436 return -EINVAL;
4437 }
4438
4439#ifdef MODULE
4440 /*
4441 * If we are called as a module, the qla1280 pointer may not be null
4442 * and it would point to our bootup string, just like on the lilo
4443 * command line. IF not NULL, then process this config string with
4444 * qla1280_setup
4445 *
4446 * Boot time Options
4447 * To add options at boot time add a line to your lilo.conf file like:
4448 * append="qla1280=verbose,max_tags:{{255,255,255,255},{255,255,255,255}}"
4449 * which will result in the first four devices on the first two
4450 * controllers being set to a tagged queue depth of 32.
4451 */
4452 if (qla1280)
4453 qla1280_setup(qla1280);
4454#endif
4455
dcbccbde 4456 return pci_register_driver(&qla1280_pci_driver);
1da177e4
LT		 4457}
4458
4459static void __exit
4460qla1280_exit(void)
4461{
421e33d0
MR		 4462 int i;
4463
1da177e4 4464 pci_unregister_driver(&qla1280_pci_driver);
421e33d0
MR		 4465 /* release any allocated firmware images */
4466 for (i = 0; i < QL_NUM_FW_IMAGES; i++) {
90449e5d
JJ		 4467 release_firmware(qla1280_fw_tbl[i].fw);
4468 qla1280_fw_tbl[i].fw = NULL;
421e33d0 4469 }
1da177e4
LT		 4470}
4471
4472module_init(qla1280_init);
4473module_exit(qla1280_exit);
4474
1da177e4
LT		 4475MODULE_AUTHOR("Qlogic & Jes Sorensen");
4476MODULE_DESCRIPTION("Qlogic ISP SCSI (qla1x80/qla1x160) driver");
4477MODULE_LICENSE("GPL");
1bfa11db
JSR		 4478MODULE_FIRMWARE("qlogic/1040.bin");
4479MODULE_FIRMWARE("qlogic/1280.bin");
4480MODULE_FIRMWARE("qlogic/12160.bin");
1da177e4
LT		 4481MODULE_VERSION(QLA1280_VERSION);
4482
4483/*
4484 * Overrides for Emacs so that we almost follow Linus's tabbing style.
4485 * Emacs will notice this stuff at the end of the file and automatically
4486 * adjust the settings for this buffer only. This must remain at the end
4487 * of the file.
4488 * ---------------------------------------------------------------------------
4489 * Local variables:
4490 * c-basic-offset: 8
4491 * tab-width: 8
4492 * End:
4493 */
Linux 6.x block layer and io_uring tree(s)