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[linux-2.6-block.git] / drivers / scsi / qla1280.c
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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******************************************************************************/
2dbb04c6 20#define QLA1280_VERSION "3.26"
1da177e4
LT		 21/*****************************************************************************
22 Revision History:
2dbb04c6
JS		 23 Rev 3.26, January 16, 2006 Jes Sorensen
24 - Ditch all < 2.6 support
1da177e4
LT		 25 Rev 3.25.1, February 10, 2005 Christoph Hellwig
26 - use pci_map_single to map non-S/G requests
27 - remove qla1280_proc_info
28 Rev 3.25, September 28, 2004, Christoph Hellwig
29 - add support for ISP1020/1040
30 - don't include "scsi.h" anymore for 2.6.x
31 Rev 3.24.4 June 7, 2004 Christoph Hellwig
32 - restructure firmware loading, cleanup initialization code
33 - prepare support for ISP1020/1040 chips
34 Rev 3.24.3 January 19, 2004, Jes Sorensen
35 - Handle PCI DMA mask settings correctly
36 - Correct order of error handling in probe_one, free_irq should not
37 be called if request_irq failed
38 Rev 3.24.2 January 19, 2004, James Bottomley & Andrew Vasquez
39 - Big endian fixes (James)
40 - Remove bogus IOCB content on zero data transfer commands (Andrew)
41 Rev 3.24.1 January 5, 2004, Jes Sorensen
42 - Initialize completion queue to avoid OOPS on probe
43 - Handle interrupts during mailbox testing
44 Rev 3.24 November 17, 2003, Christoph Hellwig
45 - use struct list_head for completion queue
46 - avoid old Scsi_FOO typedefs
47 - cleanup 2.4 compat glue a bit
48 - use <scsi/scsi_*.h> headers on 2.6 instead of "scsi.h"
49 - make initialization for memory mapped vs port I/O more similar
50 - remove broken pci config space manipulation
51 - kill more cruft
52 - this is an almost perfect 2.6 scsi driver now! ;)
53 Rev 3.23.39 December 17, 2003, Jes Sorensen
54 - Delete completion queue from srb if mailbox command failed to
55 to avoid qla1280_done completeting qla1280_error_action's
56 obsolete context
57 - Reduce arguments for qla1280_done
58 Rev 3.23.38 October 18, 2003, Christoph Hellwig
59 - Convert to new-style hotplugable driver for 2.6
60 - Fix missing scsi_unregister/scsi_host_put on HBA removal
61 - Kill some more cruft
62 Rev 3.23.37 October 1, 2003, Jes Sorensen
63 - Make MMIO depend on CONFIG_X86_VISWS instead of yet another
64 random CONFIG option
65 - Clean up locking in probe path
66 Rev 3.23.36 October 1, 2003, Christoph Hellwig
67 - queuecommand only ever receives new commands - clear flags
68 - Reintegrate lost fixes from Linux 2.5
69 Rev 3.23.35 August 14, 2003, Jes Sorensen
70 - Build against 2.6
71 Rev 3.23.34 July 23, 2003, Jes Sorensen
72 - Remove pointless TRUE/FALSE macros
73 - Clean up vchan handling
74 Rev 3.23.33 July 3, 2003, Jes Sorensen
75 - Don't define register access macros before define determining MMIO.
76 This just happend to work out on ia64 but not elsewhere.
77 - Don't try and read from the card while it is in reset as
78 it won't respond and causes an MCA
79 Rev 3.23.32 June 23, 2003, Jes Sorensen
80 - Basic support for boot time arguments
81 Rev 3.23.31 June 8, 2003, Jes Sorensen
82 - Reduce boot time messages
83 Rev 3.23.30 June 6, 2003, Jes Sorensen
84 - Do not enable sync/wide/ppr before it has been determined
85 that the target device actually supports it
86 - Enable DMA arbitration for multi channel controllers
87 Rev 3.23.29 June 3, 2003, Jes Sorensen
88 - Port to 2.5.69
89 Rev 3.23.28 June 3, 2003, Jes Sorensen
90 - Eliminate duplicate marker commands on bus resets
91 - Handle outstanding commands appropriately on bus/device resets
92 Rev 3.23.27 May 28, 2003, Jes Sorensen
93 - Remove bogus input queue code, let the Linux SCSI layer do the work
94 - Clean up NVRAM handling, only read it once from the card
95 - Add a number of missing default nvram parameters
96 Rev 3.23.26 Beta May 28, 2003, Jes Sorensen
97 - Use completion queue for mailbox commands instead of busy wait
98 Rev 3.23.25 Beta May 27, 2003, James Bottomley
99 - Migrate to use new error handling code
100 Rev 3.23.24 Beta May 21, 2003, James Bottomley
101 - Big endian support
102 - Cleanup data direction code
103 Rev 3.23.23 Beta May 12, 2003, Jes Sorensen
104 - Switch to using MMIO instead of PIO
105 Rev 3.23.22 Beta April 15, 2003, Jes Sorensen
106 - Fix PCI parity problem with 12160 during reset.
107 Rev 3.23.21 Beta April 14, 2003, Jes Sorensen
108 - Use pci_map_page()/pci_unmap_page() instead of map_single version.
109 Rev 3.23.20 Beta April 9, 2003, Jes Sorensen
110 - Remove < 2.4.x support
111 - Introduce HOST_LOCK to make the spin lock changes portable.
112 - Remove a bunch of idiotic and unnecessary typedef's
113 - Kill all leftovers of target-mode support which never worked anyway
114 Rev 3.23.19 Beta April 11, 2002, Linus Torvalds
115 - Do qla1280_pci_config() before calling request_irq() and
116 request_region()
117 - Use pci_dma_hi32() to handle upper word of DMA addresses instead
118 of large shifts
119 - Hand correct arguments to free_irq() in case of failure
120 Rev 3.23.18 Beta April 11, 2002, Jes Sorensen
121 - Run source through Lindent and clean up the output
122 Rev 3.23.17 Beta April 11, 2002, Jes Sorensen
123 - Update SCSI firmware to qla1280 v8.15.00 and qla12160 v10.04.32
124 Rev 3.23.16 Beta March 19, 2002, Jes Sorensen
125 - Rely on mailbox commands generating interrupts - do not
126 run qla1280_isr() from ql1280_mailbox_command()
127 - Remove device_reg_t
128 - Integrate ql12160_set_target_parameters() with 1280 version
129 - Make qla1280_setup() non static
130 - Do not call qla1280_check_for_dead_scsi_bus() on every I/O request
c3af1715 131 sent to the card - this command pauses the firmware!!!
1da177e4
LT		 132 Rev 3.23.15 Beta March 19, 2002, Jes Sorensen
133 - Clean up qla1280.h - remove obsolete QL_DEBUG_LEVEL_x definitions
134 - Remove a pile of pointless and confusing (srb_t **) and
135 (scsi_lu_t *) typecasts
136 - Explicit mark that we do not use the new error handling (for now)
137 - Remove scsi_qla_host_t and use 'struct' instead
138 - Remove in_abort, watchdog_enabled, dpc, dpc_sched, bios_enabled,
139 pci_64bit_slot flags which weren't used for anything anyway
140 - Grab host->host_lock while calling qla1280_isr() from abort()
141 - Use spin_lock()/spin_unlock() in qla1280_intr_handler() - we
142 do not need to save/restore flags in the interrupt handler
143 - Enable interrupts early (before any mailbox access) in preparation
144 for cleaning up the mailbox handling
145 Rev 3.23.14 Beta March 14, 2002, Jes Sorensen
146 - Further cleanups. Remove all trace of QL_DEBUG_LEVEL_x and replace
147 it with proper use of dprintk().
148 - Make qla1280_print_scsi_cmd() and qla1280_dump_buffer() both take
149 a debug level argument to determine if data is to be printed
150 - Add KERN_* info to printk()
151 Rev 3.23.13 Beta March 14, 2002, Jes Sorensen
152 - Significant cosmetic cleanups
153 - Change debug code to use dprintk() and remove #if mess
154 Rev 3.23.12 Beta March 13, 2002, Jes Sorensen
155 - More cosmetic cleanups, fix places treating return as function
156 - use cpu_relax() in qla1280_debounce_register()
157 Rev 3.23.11 Beta March 13, 2002, Jes Sorensen
158 - Make it compile under 2.5.5
159 Rev 3.23.10 Beta October 1, 2001, Jes Sorensen
160 - Do no typecast short * to long * in QL1280BoardTbl, this
161 broke miserably on big endian boxes
162 Rev 3.23.9 Beta September 30, 2001, Jes Sorensen
163 - Remove pre 2.2 hack for checking for reentrance in interrupt handler
164 - Make data types used to receive from SCSI_{BUS,TCN,LUN}_32
165 unsigned int to match the types from struct scsi_cmnd
166 Rev 3.23.8 Beta September 29, 2001, Jes Sorensen
167 - Remove bogus timer_t typedef from qla1280.h
168 - Remove obsolete pre 2.2 PCI setup code, use proper #define's
169 for PCI_ values, call pci_set_master()
170 - Fix memleak of qla1280_buffer on module unload
171 - Only compile module parsing code #ifdef MODULE - should be
172 changed to use individual MODULE_PARM's later
173 - Remove dummy_buffer that was never modified nor printed
174 - ENTER()/LEAVE() are noops unless QL_DEBUG_LEVEL_3, hence remove
175 #ifdef QL_DEBUG_LEVEL_3/#endif around ENTER()/LEAVE() calls
176 - Remove \r from print statements, this is Linux, not DOS
177 - Remove obsolete QLA1280_{SCSILU,INTR,RING}_{LOCK,UNLOCK}
178 dummy macros
179 - Remove C++ compile hack in header file as Linux driver are not
180 supposed to be compiled as C++
181 - Kill MS_64BITS macro as it makes the code more readable
182 - Remove unnecessary flags.in_interrupts bit
183 Rev 3.23.7 Beta August 20, 2001, Jes Sorensen
184 - Dont' check for set flags on q->q_flag one by one in qla1280_next()
185 - Check whether the interrupt was generated by the QLA1280 before
186 doing any processing
187 - qla1280_status_entry(): Only zero out part of sense_buffer that
188 is not being copied into
189 - Remove more superflouous typecasts
190 - qla1280_32bit_start_scsi() replace home-brew memcpy() with memcpy()
191 Rev 3.23.6 Beta August 20, 2001, Tony Luck, Intel
192 - Don't walk the entire list in qla1280_putq_t() just to directly
193 grab the pointer to the last element afterwards
194 Rev 3.23.5 Beta August 9, 2001, Jes Sorensen
1d6f359a 195 - Don't use IRQF_DISABLED, it's use is deprecated for this kinda driver
1da177e4
LT		 196 Rev 3.23.4 Beta August 8, 2001, Jes Sorensen
197 - Set dev->max_sectors to 1024
198 Rev 3.23.3 Beta August 6, 2001, Jes Sorensen
199 - Provide compat macros for pci_enable_device(), pci_find_subsys()
200 and scsi_set_pci_device()
201 - Call scsi_set_pci_device() for all devices
202 - Reduce size of kernel version dependent device probe code
203 - Move duplicate probe/init code to separate function
204 - Handle error if qla1280_mem_alloc() fails
205 - Kill OFFSET() macro and use Linux's PCI definitions instead
206 - Kill private structure defining PCI config space (struct config_reg)
207 - Only allocate I/O port region if not in MMIO mode
208 - Remove duplicate (unused) sanity check of sife of srb_t
209 Rev 3.23.2 Beta August 6, 2001, Jes Sorensen
210 - Change home-brew memset() implementations to use memset()
211 - Remove all references to COMTRACE() - accessing a PC's COM2 serial
212 port directly is not legal under Linux.
213 Rev 3.23.1 Beta April 24, 2001, Jes Sorensen
214 - Remove pre 2.2 kernel support
215 - clean up 64 bit DMA setting to use 2.4 API (provide backwards compat)
216 - Fix MMIO access to use readl/writel instead of directly
217 dereferencing pointers
218 - Nuke MSDOS debugging code
219 - Change true/false data types to int from uint8_t
220 - Use int for counters instead of uint8_t etc.
221 - Clean up size & byte order conversion macro usage
222 Rev 3.23 Beta January 11, 2001 BN Qlogic
223 - Added check of device_id when handling non
224 QLA12160s during detect().
225 Rev 3.22 Beta January 5, 2001 BN Qlogic
226 - Changed queue_task() to schedule_task()
227 for kernels 2.4.0 and higher.
228 Note: 2.4.0-testxx kernels released prior to
229 the actual 2.4.0 kernel release on January 2001
230 will get compile/link errors with schedule_task().
231 Please update your kernel to released 2.4.0 level,
232 or comment lines in this file flagged with 3.22
233 to resolve compile/link error of schedule_task().
234 - Added -DCONFIG_SMP in addition to -D__SMP__
235 in Makefile for 2.4.0 builds of driver as module.
236 Rev 3.21 Beta January 4, 2001 BN Qlogic
237 - Changed criteria of 64/32 Bit mode of HBA
238 operation according to BITS_PER_LONG rather
239 than HBA's NVRAM setting of >4Gig memory bit;
240 so that the HBA auto-configures without the need
241 to setup each system individually.
242 Rev 3.20 Beta December 5, 2000 BN Qlogic
243 - Added priority handling to IA-64 onboard SCSI
244 ISP12160 chip for kernels greater than 2.3.18.
245 - Added irqrestore for qla1280_intr_handler.
246 - Enabled /proc/scsi/qla1280 interface.
247 - Clear /proc/scsi/qla1280 counters in detect().
248 Rev 3.19 Beta October 13, 2000 BN Qlogic
249 - Declare driver_template for new kernel
250 (2.4.0 and greater) scsi initialization scheme.
251 - Update /proc/scsi entry for 2.3.18 kernels and
252 above as qla1280
253 Rev 3.18 Beta October 10, 2000 BN Qlogic
254 - Changed scan order of adapters to map
255 the QLA12160 followed by the QLA1280.
256 Rev 3.17 Beta September 18, 2000 BN Qlogic
257 - Removed warnings for 32 bit 2.4.x compiles
258 - Corrected declared size for request and response
259 DMA addresses that are kept in each ha
260 Rev. 3.16 Beta August 25, 2000 BN Qlogic
261 - Corrected 64 bit addressing issue on IA-64
262 where the upper 32 bits were not properly
263 passed to the RISC engine.
264 Rev. 3.15 Beta August 22, 2000 BN Qlogic
265 - Modified qla1280_setup_chip to properly load
266 ISP firmware for greater that 4 Gig memory on IA-64
267 Rev. 3.14 Beta August 16, 2000 BN Qlogic
268 - Added setting of dma_mask to full 64 bit
269 if flags.enable_64bit_addressing is set in NVRAM
270 Rev. 3.13 Beta August 16, 2000 BN Qlogic
271 - Use new PCI DMA mapping APIs for 2.4.x kernel
272 Rev. 3.12 July 18, 2000 Redhat & BN Qlogic
273 - Added check of pci_enable_device to detect() for 2.3.x
274 - Use pci_resource_start() instead of
275 pdev->resource[0].start in detect() for 2.3.x
276 - Updated driver version
277 Rev. 3.11 July 14, 2000 BN Qlogic
278 - Updated SCSI Firmware to following versions:
279 qla1x80: 8.13.08
280 qla1x160: 10.04.08
281 - Updated driver version to 3.11
282 Rev. 3.10 June 23, 2000 BN Qlogic
283 - Added filtering of AMI SubSys Vendor ID devices
284 Rev. 3.9
285 - DEBUG_QLA1280 undefined and new version BN Qlogic
286 Rev. 3.08b May 9, 2000 MD Dell
287 - Added logic to check against AMI subsystem vendor ID
288 Rev. 3.08 May 4, 2000 DG Qlogic
289 - Added logic to check for PCI subsystem ID.
290 Rev. 3.07 Apr 24, 2000 DG & BN Qlogic
291 - Updated SCSI Firmware to following versions:
292 qla12160: 10.01.19
293 qla1280: 8.09.00
294 Rev. 3.06 Apr 12, 2000 DG & BN Qlogic
295 - Internal revision; not released
296 Rev. 3.05 Mar 28, 2000 DG & BN Qlogic
297 - Edit correction for virt_to_bus and PROC.
298 Rev. 3.04 Mar 28, 2000 DG & BN Qlogic
299 - Merge changes from ia64 port.
300 Rev. 3.03 Mar 28, 2000 BN Qlogic
301 - Increase version to reflect new code drop with compile fix
302 of issue with inclusion of linux/spinlock for 2.3 kernels
303 Rev. 3.02 Mar 15, 2000 BN Qlogic
304 - Merge qla1280_proc_info from 2.10 code base
305 Rev. 3.01 Feb 10, 2000 BN Qlogic
306 - Corrected code to compile on a 2.2.x kernel.
307 Rev. 3.00 Jan 17, 2000 DG Qlogic
308 - Added 64-bit support.
309 Rev. 2.07 Nov 9, 1999 DG Qlogic
310 - Added new routine to set target parameters for ISP12160.
311 Rev. 2.06 Sept 10, 1999 DG Qlogic
312 - Added support for ISP12160 Ultra 3 chip.
313 Rev. 2.03 August 3, 1999 Fred Lewis, Intel DuPont
314 - Modified code to remove errors generated when compiling with
315 Cygnus IA64 Compiler.
316 - Changed conversion of pointers to unsigned longs instead of integers.
317 - Changed type of I/O port variables from uint32_t to unsigned long.
318 - Modified OFFSET macro to work with 64-bit as well as 32-bit.
319 - Changed sprintf and printk format specifiers for pointers to %p.
320 - Changed some int to long type casts where needed in sprintf & printk.
321 - Added l modifiers to sprintf and printk format specifiers for longs.
322 - Removed unused local variables.
323 Rev. 1.20 June 8, 1999 DG, Qlogic
324 Changes to support RedHat release 6.0 (kernel 2.2.5).
325 - Added SCSI exclusive access lock (io_request_lock) when accessing
326 the adapter.
327 - Added changes for the new LINUX interface template. Some new error
328 handling routines have been added to the template, but for now we
329 will use the old ones.
330 - Initial Beta Release.
331*****************************************************************************/
332
333
1da177e4
LT		 334#include <linux/module.h>
335
1da177e4
LT		 336#include <linux/types.h>
337#include <linux/string.h>
338#include <linux/errno.h>
339#include <linux/kernel.h>
340#include <linux/ioport.h>
341#include <linux/delay.h>
342#include <linux/timer.h>
1da177e4
LT		 343#include <linux/pci.h>
344#include <linux/proc_fs.h>
345#include <linux/stat.h>
346#include <linux/slab.h>
347#include <linux/pci_ids.h>
348#include <linux/interrupt.h>
349#include <linux/init.h>
910638ae 350#include <linux/dma-mapping.h>
1bfa11db 351#include <linux/firmware.h>
1da177e4
LT		 352
353#include <asm/io.h>
354#include <asm/irq.h>
355#include <asm/byteorder.h>
356#include <asm/processor.h>
357#include <asm/types.h>
358#include <asm/system.h>
359
1da177e4
LT		 360#include <scsi/scsi.h>
361#include <scsi/scsi_cmnd.h>
362#include <scsi/scsi_device.h>
363#include <scsi/scsi_host.h>
364#include <scsi/scsi_tcq.h>
1da177e4
LT		 365
366#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
367#include <asm/sn/io.h>
368#endif
369
1da177e4
LT		 370
371/*
372 * Compile time Options:
373 * 0 - Disable and 1 - Enable
374 */
375#define DEBUG_QLA1280_INTR 0
376#define DEBUG_PRINT_NVRAM 0
377#define DEBUG_QLA1280 0
378
379/*
380 * The SGI VISWS is broken and doesn't support MMIO ;-(
381 */
382#ifdef CONFIG_X86_VISWS
383#define MEMORY_MAPPED_IO 0
384#else
385#define MEMORY_MAPPED_IO 1
386#endif
387
1da177e4 388#include "qla1280.h"
1da177e4 389
1da177e4
LT		 390#ifndef BITS_PER_LONG
391#error "BITS_PER_LONG not defined!"
392#endif
393#if (BITS_PER_LONG == 64) || defined CONFIG_HIGHMEM
394#define QLA_64BIT_PTR 1
395#endif
396
397#ifdef QLA_64BIT_PTR
398#define pci_dma_hi32(a) ((a >> 16) >> 16)
399#else
400#define pci_dma_hi32(a) 0
401#endif
402#define pci_dma_lo32(a) (a & 0xffffffff)
403
404#define NVRAM_DELAY() udelay(500) /* 2 microseconds */
405
1da177e4
LT		 406#if defined(__ia64__) && !defined(ia64_platform_is)
407#define ia64_platform_is(foo) (!strcmp(x, platform_name))
408#endif
409
410
411#define IS_ISP1040(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020)
412#define IS_ISP1x40(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020 || \
413 ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1240)
414#define IS_ISP1x160(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP10160 || \
415 ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP12160)
416
417
418static int qla1280_probe_one(struct pci_dev *, const struct pci_device_id *);
419static void qla1280_remove_one(struct pci_dev *);
420
421/*
422 * QLogic Driver Support Function Prototypes.
423 */
424static void qla1280_done(struct scsi_qla_host *);
1da177e4
LT		 425static int qla1280_get_token(char *);
426static int qla1280_setup(char *s) __init;
427
428/*
429 * QLogic ISP1280 Hardware Support Function Prototypes.
430 */
431static int qla1280_load_firmware(struct scsi_qla_host *);
432static int qla1280_init_rings(struct scsi_qla_host *);
433static int qla1280_nvram_config(struct scsi_qla_host *);
434static int qla1280_mailbox_command(struct scsi_qla_host *,
435 uint8_t, uint16_t *);
436static int qla1280_bus_reset(struct scsi_qla_host *, int);
437static int qla1280_device_reset(struct scsi_qla_host *, int, int);
438static int qla1280_abort_device(struct scsi_qla_host *, int, int, int);
439static int qla1280_abort_command(struct scsi_qla_host *, struct srb *, int);
440static int qla1280_abort_isp(struct scsi_qla_host *);
441#ifdef QLA_64BIT_PTR
442static int qla1280_64bit_start_scsi(struct scsi_qla_host *, struct srb *);
443#else
444static int qla1280_32bit_start_scsi(struct scsi_qla_host *, struct srb *);
445#endif
446static void qla1280_nv_write(struct scsi_qla_host *, uint16_t);
447static void qla1280_poll(struct scsi_qla_host *);
448static void qla1280_reset_adapter(struct scsi_qla_host *);
449static void qla1280_marker(struct scsi_qla_host *, int, int, int, u8);
450static void qla1280_isp_cmd(struct scsi_qla_host *);
451static void qla1280_isr(struct scsi_qla_host *, struct list_head *);
452static void qla1280_rst_aen(struct scsi_qla_host *);
453static void qla1280_status_entry(struct scsi_qla_host *, struct response *,
454 struct list_head *);
455static void qla1280_error_entry(struct scsi_qla_host *, struct response *,
456 struct list_head *);
457static uint16_t qla1280_get_nvram_word(struct scsi_qla_host *, uint32_t);
458static uint16_t qla1280_nvram_request(struct scsi_qla_host *, uint32_t);
459static uint16_t qla1280_debounce_register(volatile uint16_t __iomem *);
460static request_t *qla1280_req_pkt(struct scsi_qla_host *);
461static int qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *,
462 unsigned int);
463static void qla1280_get_target_parameters(struct scsi_qla_host *,
464 struct scsi_device *);
465static int qla1280_set_target_parameters(struct scsi_qla_host *, int, int);
466
467
468static struct qla_driver_setup driver_setup;
469
470/*
471 * convert scsi data direction to request_t control flags
472 */
473static inline uint16_t
474qla1280_data_direction(struct scsi_cmnd *cmnd)
475{
476 switch(cmnd->sc_data_direction) {
477 case DMA_FROM_DEVICE:
478 return BIT_5;
479 case DMA_TO_DEVICE:
480 return BIT_6;
481 case DMA_BIDIRECTIONAL:
482 return BIT_5 | BIT_6;
483 /*
484 * We could BUG() on default here if one of the four cases aren't
485 * met, but then again if we receive something like that from the
486 * SCSI layer we have more serious problems. This shuts up GCC.
487 */
488 case DMA_NONE:
489 default:
490 return 0;
491 }
492}
493
494#if DEBUG_QLA1280
495static void __qla1280_print_scsi_cmd(struct scsi_cmnd * cmd);
496static void __qla1280_dump_buffer(char *, int);
497#endif
498
499
500/*
501 * insmod needs to find the variable and make it point to something
502 */
503#ifdef MODULE
504static char *qla1280;
505
506/* insmod qla1280 options=verbose" */
507module_param(qla1280, charp, 0);
508#else
509__setup("qla1280=", qla1280_setup);
510#endif
511
512
513/*
514 * We use the scsi_pointer structure that's included with each scsi_command
515 * to overlay our struct srb over it. qla1280_init() checks that a srb is not
516 * bigger than a scsi_pointer.
517 */
518
519#define CMD_SP(Cmnd) &Cmnd->SCp
520#define CMD_CDBLEN(Cmnd) Cmnd->cmd_len
521#define CMD_CDBP(Cmnd) Cmnd->cmnd
522#define CMD_SNSP(Cmnd) Cmnd->sense_buffer
b80ca4f7 523#define CMD_SNSLEN(Cmnd) SCSI_SENSE_BUFFERSIZE
1da177e4
LT		 524#define CMD_RESULT(Cmnd) Cmnd->result
525#define CMD_HANDLE(Cmnd) Cmnd->host_scribble
1da177e4 526#define CMD_REQUEST(Cmnd) Cmnd->request->cmd
1da177e4
LT		 527
528#define CMD_HOST(Cmnd) Cmnd->device->host
529#define SCSI_BUS_32(Cmnd) Cmnd->device->channel
530#define SCSI_TCN_32(Cmnd) Cmnd->device->id
531#define SCSI_LUN_32(Cmnd) Cmnd->device->lun
532
533
534/*****************************************/
535/* ISP Boards supported by this driver */
536/*****************************************/
537
538struct qla_boards {
539 unsigned char name[9]; /* Board ID String */
540 int numPorts; /* Number of SCSI ports */
1bfa11db 541 char *fwname; /* firmware name */
1da177e4
LT		 542};
543
544/* NOTE: the last argument in each entry is used to index ql1280_board_tbl */
545static struct pci_device_id qla1280_pci_tbl[] = {
546 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP12160,
547 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1da177e4
LT		 548 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1020,
549 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
1da177e4
LT		 550 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1080,
551 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
552 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1240,
553 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
554 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1280,
555 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
556 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP10160,
557 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
558 {0,}
559};
560MODULE_DEVICE_TABLE(pci, qla1280_pci_tbl);
561
562static struct qla_boards ql1280_board_tbl[] = {
563 /* Name , Number of ports, FW details */
1bfa11db
JSR		 564 {"QLA12160", 2, "qlogic/12160.bin"},
565 {"QLA1040", 1, "qlogic/1040.bin"},
566 {"QLA1080", 1, "qlogic/1280.bin"},
567 {"QLA1240", 2, "qlogic/1280.bin"},
568 {"QLA1280", 2, "qlogic/1280.bin"},
569 {"QLA10160", 1, "qlogic/12160.bin"},
570 {" ", 0, " "},
1da177e4
LT		 571};
572
573static int qla1280_verbose = 1;
574
575#if DEBUG_QLA1280
576static int ql_debug_level = 1;
577#define dprintk(level, format, a...) \
578 do { if (ql_debug_level >= level) printk(KERN_ERR format, ##a); } while(0)
579#define qla1280_dump_buffer(level, buf, size) \
580 if (ql_debug_level >= level) __qla1280_dump_buffer(buf, size)
581#define qla1280_print_scsi_cmd(level, cmd) \
582 if (ql_debug_level >= level) __qla1280_print_scsi_cmd(cmd)
583#else
584#define ql_debug_level 0
585#define dprintk(level, format, a...) do{}while(0)
586#define qla1280_dump_buffer(a, b, c) do{}while(0)
587#define qla1280_print_scsi_cmd(a, b) do{}while(0)
588#endif
589
590#define ENTER(x) dprintk(3, "qla1280 : Entering %s()\n", x);
591#define LEAVE(x) dprintk(3, "qla1280 : Leaving %s()\n", x);
592#define ENTER_INTR(x) dprintk(4, "qla1280 : Entering %s()\n", x);
593#define LEAVE_INTR(x) dprintk(4, "qla1280 : Leaving %s()\n", x);
594
595
596static int qla1280_read_nvram(struct scsi_qla_host *ha)
597{
598 uint16_t *wptr;
599 uint8_t chksum;
600 int cnt, i;
601 struct nvram *nv;
602
603 ENTER("qla1280_read_nvram");
604
605 if (driver_setup.no_nvram)
606 return 1;
607
608 printk(KERN_INFO "scsi(%ld): Reading NVRAM\n", ha->host_no);
609
610 wptr = (uint16_t *)&ha->nvram;
611 nv = &ha->nvram;
612 chksum = 0;
613 for (cnt = 0; cnt < 3; cnt++) {
614 *wptr = qla1280_get_nvram_word(ha, cnt);
615 chksum += *wptr & 0xff;
616 chksum += (*wptr >> 8) & 0xff;
617 wptr++;
618 }
619
620 if (nv->id0 != 'I' || nv->id1 != 'S' ||
621 nv->id2 != 'P' || nv->id3 != ' ' || nv->version < 1) {
622 dprintk(2, "Invalid nvram ID or version!\n");
623 chksum = 1;
624 } else {
625 for (; cnt < sizeof(struct nvram); cnt++) {
626 *wptr = qla1280_get_nvram_word(ha, cnt);
627 chksum += *wptr & 0xff;
628 chksum += (*wptr >> 8) & 0xff;
629 wptr++;
630 }
631 }
632
633 dprintk(3, "qla1280_read_nvram: NVRAM Magic ID= %c %c %c %02x"
634 " version %i\n", nv->id0, nv->id1, nv->id2, nv->id3,
635 nv->version);
636
637
638 if (chksum) {
639 if (!driver_setup.no_nvram)
640 printk(KERN_WARNING "scsi(%ld): Unable to identify or "
641 "validate NVRAM checksum, using default "
642 "settings\n", ha->host_no);
643 ha->nvram_valid = 0;
644 } else
645 ha->nvram_valid = 1;
646
647 /* The firmware interface is, um, interesting, in that the
648 * actual firmware image on the chip is little endian, thus,
649 * the process of taking that image to the CPU would end up
c3af1715 650 * little endian. However, the firmware interface requires it
1da177e4
LT		 651 * to be read a word (two bytes) at a time.
652 *
653 * The net result of this would be that the word (and
654 * doubleword) quantites in the firmware would be correct, but
655 * the bytes would be pairwise reversed. Since most of the
656 * firmware quantites are, in fact, bytes, we do an extra
657 * le16_to_cpu() in the firmware read routine.
658 *
659 * The upshot of all this is that the bytes in the firmware
660 * are in the correct places, but the 16 and 32 bit quantites
661 * are still in little endian format. We fix that up below by
662 * doing extra reverses on them */
663 nv->isp_parameter = cpu_to_le16(nv->isp_parameter);
664 nv->firmware_feature.w = cpu_to_le16(nv->firmware_feature.w);
665 for(i = 0; i < MAX_BUSES; i++) {
666 nv->bus[i].selection_timeout = cpu_to_le16(nv->bus[i].selection_timeout);
667 nv->bus[i].max_queue_depth = cpu_to_le16(nv->bus[i].max_queue_depth);
668 }
669 dprintk(1, "qla1280_read_nvram: Completed Reading NVRAM\n");
670 LEAVE("qla1280_read_nvram");
671
672 return chksum;
673}
674
675/**************************************************************************
676 * qla1280_info
677 * Return a string describing the driver.
678 **************************************************************************/
679static const char *
680qla1280_info(struct Scsi_Host *host)
681{
682 static char qla1280_scsi_name_buffer[125];
683 char *bp;
684 struct scsi_qla_host *ha;
685 struct qla_boards *bdp;
686
687 bp = &qla1280_scsi_name_buffer[0];
688 ha = (struct scsi_qla_host *)host->hostdata;
689 bdp = &ql1280_board_tbl[ha->devnum];
690 memset(bp, 0, sizeof(qla1280_scsi_name_buffer));
691
692 sprintf (bp,
693 "QLogic %s PCI to SCSI Host Adapter\n"
694 " Firmware version: %2d.%02d.%02d, Driver version %s",
1bfa11db 695 &bdp->name[0], ha->fwver1, ha->fwver2, ha->fwver3,
1da177e4
LT		 696 QLA1280_VERSION);
697 return bp;
698}
699
700/**************************************************************************
701 * qla1200_queuecommand
702 * Queue a command to the controller.
703 *
704 * Note:
705 * The mid-level driver tries to ensures that queuecommand never gets invoked
706 * concurrently with itself or the interrupt handler (although the
707 * interrupt handler may call this routine as part of request-completion
708 * handling). Unfortunely, it sometimes calls the scheduler in interrupt
709 * context which is a big NO! NO!.
710 **************************************************************************/
711static int
712qla1280_queuecommand(struct scsi_cmnd *cmd, void (*fn)(struct scsi_cmnd *))
713{
714 struct Scsi_Host *host = cmd->device->host;
715 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
716 struct srb *sp = (struct srb *)&cmd->SCp;
717 int status;
718
719 cmd->scsi_done = fn;
720 sp->cmd = cmd;
721 sp->flags = 0;
722
723 qla1280_print_scsi_cmd(5, cmd);
724
725#ifdef QLA_64BIT_PTR
726 /*
727 * Using 64 bit commands if the PCI bridge doesn't support it is a
728 * bit wasteful, however this should really only happen if one's
729 * PCI controller is completely broken, like the BCM1250. For
730 * sane hardware this is not an issue.
731 */
732 status = qla1280_64bit_start_scsi(ha, sp);
733#else
734 status = qla1280_32bit_start_scsi(ha, sp);
735#endif
736 return status;
737}
738
739enum action {
740 ABORT_COMMAND,
741 ABORT_DEVICE,
742 DEVICE_RESET,
743 BUS_RESET,
744 ADAPTER_RESET,
745 FAIL
746};
747
748/* timer action for error action processor */
749static void qla1280_error_wait_timeout(unsigned long __data)
750{
751 struct scsi_cmnd *cmd = (struct scsi_cmnd *)__data;
752 struct srb *sp = (struct srb *)CMD_SP(cmd);
753
754 complete(sp->wait);
755}
756
757static void qla1280_mailbox_timeout(unsigned long __data)
758{
759 struct scsi_qla_host *ha = (struct scsi_qla_host *)__data;
760 struct device_reg __iomem *reg;
761 reg = ha->iobase;
762
763 ha->mailbox_out[0] = RD_REG_WORD(&reg->mailbox0);
764 printk(KERN_ERR "scsi(%ld): mailbox timed out, mailbox0 %04x, "
765 "ictrl %04x, istatus %04x\n", ha->host_no, ha->mailbox_out[0],
766 RD_REG_WORD(&reg->ictrl), RD_REG_WORD(&reg->istatus));
767 complete(ha->mailbox_wait);
768}
769
770/**************************************************************************
771 * qla1200_error_action
772 * The function will attempt to perform a specified error action and
773 * wait for the results (or time out).
774 *
775 * Input:
776 * cmd = Linux SCSI command packet of the command that cause the
777 * bus reset.
778 * action = error action to take (see action_t)
779 *
780 * Returns:
781 * SUCCESS or FAILED
782 *
783 * Note:
784 * Resetting the bus always succeeds - is has to, otherwise the
785 * kernel will panic! Try a surgical technique - sending a BUS
786 * DEVICE RESET message - on the offending target before pulling
787 * the SCSI bus reset line.
788 **************************************************************************/
789static int
790qla1280_error_action(struct scsi_cmnd *cmd, enum action action)
791{
792 struct scsi_qla_host *ha;
793 int bus, target, lun;
794 struct srb *sp;
795 uint16_t data;
796 unsigned char *handle;
797 int result, i;
6e9a4738 798 DECLARE_COMPLETION_ONSTACK(wait);
1da177e4
LT		 799 struct timer_list timer;
800
801 ha = (struct scsi_qla_host *)(CMD_HOST(cmd)->hostdata);
802
803 dprintk(4, "error_action %i, istatus 0x%04x\n", action,
804 RD_REG_WORD(&ha->iobase->istatus));
805
806 dprintk(4, "host_cmd 0x%04x, ictrl 0x%04x, jiffies %li\n",
807 RD_REG_WORD(&ha->iobase->host_cmd),
808 RD_REG_WORD(&ha->iobase->ictrl), jiffies);
809
810 ENTER("qla1280_error_action");
811 if (qla1280_verbose)
812 printk(KERN_INFO "scsi(%li): Resetting Cmnd=0x%p, "
813 "Handle=0x%p, action=0x%x\n",
814 ha->host_no, cmd, CMD_HANDLE(cmd), action);
815
816 if (cmd == NULL) {
817 printk(KERN_WARNING "(scsi?:?:?:?) Reset called with NULL "
818 "si_Cmnd pointer, failing.\n");
819 LEAVE("qla1280_error_action");
820 return FAILED;
821 }
822
823 ha = (struct scsi_qla_host *)cmd->device->host->hostdata;
824 sp = (struct srb *)CMD_SP(cmd);
825 handle = CMD_HANDLE(cmd);
826
827 /* Check for pending interrupts. */
828 data = qla1280_debounce_register(&ha->iobase->istatus);
829 /*
830 * The io_request_lock is held when the reset handler is called, hence
831 * the interrupt handler cannot be running in parallel as it also
832 * grabs the lock. /Jes
833 */
834 if (data & RISC_INT)
835 qla1280_isr(ha, &ha->done_q);
836
837 /*
838 * Determine the suggested action that the mid-level driver wants
839 * us to perform.
840 */
841 if (handle == (unsigned char *)INVALID_HANDLE || handle == NULL) {
842 if(action == ABORT_COMMAND) {
843 /* we never got this command */
844 printk(KERN_INFO "qla1280: Aborting a NULL handle\n");
845 return SUCCESS; /* no action - we don't have command */
846 }
847 } else {
848 sp->wait = &wait;
849 }
850
851 bus = SCSI_BUS_32(cmd);
852 target = SCSI_TCN_32(cmd);
853 lun = SCSI_LUN_32(cmd);
854
855 /* Overloading result. Here it means the success or fail of the
856 * *issue* of the action. When we return from the routine, it must
857 * mean the actual success or fail of the action */
858 result = FAILED;
859 switch (action) {
860 case FAIL:
861 break;
862
863 case ABORT_COMMAND:
864 if ((sp->flags & SRB_ABORT_PENDING)) {
865 printk(KERN_WARNING
866 "scsi(): Command has a pending abort "
867 "message - ABORT_PENDING.\n");
868 /* This should technically be impossible since we
869 * now wait for abort completion */
870 break;
871 }
872
873 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
874 if (sp == ha->outstanding_cmds[i]) {
875 dprintk(1, "qla1280: RISC aborting command\n");
876 if (qla1280_abort_command(ha, sp, i) == 0)
877 result = SUCCESS;
878 else {
879 /*
880 * Since we don't know what might
881 * have happend to the command, it
882 * is unsafe to remove it from the
883 * device's queue at this point.
884 * Wait and let the escalation
885 * process take care of it.
886 */
887 printk(KERN_WARNING
888 "scsi(%li:%i:%i:%i): Unable"
889 " to abort command!\n",
890 ha->host_no, bus, target, lun);
891 }
892 }
893 }
894 break;
895
896 case ABORT_DEVICE:
1da177e4
LT		 897 if (qla1280_verbose)
898 printk(KERN_INFO
899 "scsi(%ld:%d:%d:%d): Queueing abort device "
900 "command.\n", ha->host_no, bus, target, lun);
901 if (qla1280_abort_device(ha, bus, target, lun) == 0)
902 result = SUCCESS;
903 break;
904
905 case DEVICE_RESET:
906 if (qla1280_verbose)
907 printk(KERN_INFO
908 "scsi(%ld:%d:%d:%d): Queueing device reset "
909 "command.\n", ha->host_no, bus, target, lun);
1da177e4
LT		 910 if (qla1280_device_reset(ha, bus, target) == 0)
911 result = SUCCESS;
912 break;
913
914 case BUS_RESET:
915 if (qla1280_verbose)
cd00b7f5
JS		 916 printk(KERN_INFO "qla1280(%ld:%d): Issued bus "
917 "reset.\n", ha->host_no, bus);
918 if (qla1280_bus_reset(ha, bus) == 0)
1da177e4 919 result = SUCCESS;
1da177e4
LT		 920 break;
921
922 case ADAPTER_RESET:
923 default:
924 if (qla1280_verbose) {
925 printk(KERN_INFO
926 "scsi(%ld): Issued ADAPTER RESET\n",
927 ha->host_no);
928 printk(KERN_INFO "scsi(%ld): I/O processing will "
929 "continue automatically\n", ha->host_no);
930 }
931 ha->flags.reset_active = 1;
932 /*
933 * We restarted all of the commands automatically, so the
934 * mid-level code can expect completions momentitarily.
935 */
936 if (qla1280_abort_isp(ha) == 0)
937 result = SUCCESS;
938
939 ha->flags.reset_active = 0;
940 }
941
942 if (!list_empty(&ha->done_q))
943 qla1280_done(ha);
1da177e4
LT		 944
945 /* If we didn't manage to issue the action, or we have no
946 * command to wait for, exit here */
947 if (result == FAILED || handle == NULL ||
948 handle == (unsigned char *)INVALID_HANDLE) {
949 /*
950 * Clear completion queue to avoid qla1280_done() trying
951 * to complete the command at a later stage after we
952 * have exited the current context
953 */
954 sp->wait = NULL;
955 goto leave;
956 }
957
958 /* set up a timer just in case we're really jammed */
959 init_timer(&timer);
960 timer.expires = jiffies + 4*HZ;
961 timer.data = (unsigned long)cmd;
962 timer.function = qla1280_error_wait_timeout;
963 add_timer(&timer);
964
965 /* wait for the action to complete (or the timer to expire) */
2dbb04c6 966 spin_unlock_irq(ha->host->host_lock);
1da177e4
LT		 967 wait_for_completion(&wait);
968 del_timer_sync(&timer);
2dbb04c6 969 spin_lock_irq(ha->host->host_lock);
1da177e4
LT		 970 sp->wait = NULL;
971
972 /* the only action we might get a fail for is abort */
973 if (action == ABORT_COMMAND) {
974 if(sp->flags & SRB_ABORTED)
975 result = SUCCESS;
976 else
977 result = FAILED;
978 }
979
980 leave:
981 dprintk(1, "RESET returning %d\n", result);
982
983 LEAVE("qla1280_error_action");
984 return result;
985}
986
987/**************************************************************************
988 * qla1280_abort
989 * Abort the specified SCSI command(s).
990 **************************************************************************/
991static int
992qla1280_eh_abort(struct scsi_cmnd * cmd)
993{
8fa728a2
JG		 994 int rc;
995
996 spin_lock_irq(cmd->device->host->host_lock);
997 rc = qla1280_error_action(cmd, ABORT_COMMAND);
998 spin_unlock_irq(cmd->device->host->host_lock);
999
1000 return rc;
1da177e4
LT		 1001}
1002
1003/**************************************************************************
1004 * qla1280_device_reset
1005 * Reset the specified SCSI device
1006 **************************************************************************/
1007static int
1008qla1280_eh_device_reset(struct scsi_cmnd *cmd)
1009{
94d0e7b8
JG		 1010 int rc;
1011
1012 spin_lock_irq(cmd->device->host->host_lock);
1013 rc = qla1280_error_action(cmd, DEVICE_RESET);
1014 spin_unlock_irq(cmd->device->host->host_lock);
1015
1016 return rc;
1da177e4
LT		 1017}
1018
1019/**************************************************************************
1020 * qla1280_bus_reset
1021 * Reset the specified bus.
1022 **************************************************************************/
1023static int
1024qla1280_eh_bus_reset(struct scsi_cmnd *cmd)
1025{
68b3aa7c
JG		 1026 int rc;
1027
1028 spin_lock_irq(cmd->device->host->host_lock);
1029 rc = qla1280_error_action(cmd, BUS_RESET);
1030 spin_unlock_irq(cmd->device->host->host_lock);
1031
1032 return rc;
1da177e4
LT		 1033}
1034
1035/**************************************************************************
1036 * qla1280_adapter_reset
1037 * Reset the specified adapter (both channels)
1038 **************************************************************************/
1039static int
1040qla1280_eh_adapter_reset(struct scsi_cmnd *cmd)
1041{
df0ae249
JG		 1042 int rc;
1043
1044 spin_lock_irq(cmd->device->host->host_lock);
1045 rc = qla1280_error_action(cmd, ADAPTER_RESET);
1046 spin_unlock_irq(cmd->device->host->host_lock);
1047
1048 return rc;
1da177e4
LT		 1049}
1050
1051static int
1052qla1280_biosparam(struct scsi_device *sdev, struct block_device *bdev,
1053 sector_t capacity, int geom[])
1054{
1055 int heads, sectors, cylinders;
1056
1057 heads = 64;
1058 sectors = 32;
1059 cylinders = (unsigned long)capacity / (heads * sectors);
1060 if (cylinders > 1024) {
1061 heads = 255;
1062 sectors = 63;
1063 cylinders = (unsigned long)capacity / (heads * sectors);
1064 /* if (cylinders > 1023)
1065 cylinders = 1023; */
1066 }
1067
1068 geom[0] = heads;
1069 geom[1] = sectors;
1070 geom[2] = cylinders;
1071
1072 return 0;
1073}
1074
8af50dcd
CH		 1075
1076/* disable risc and host interrupts */
1077static inline void
1078qla1280_disable_intrs(struct scsi_qla_host *ha)
1079{
1080 WRT_REG_WORD(&ha->iobase->ictrl, 0);
1081 RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */
1082}
1083
1084/* enable risc and host interrupts */
1085static inline void
1086qla1280_enable_intrs(struct scsi_qla_host *ha)
1087{
1088 WRT_REG_WORD(&ha->iobase->ictrl, (ISP_EN_INT | ISP_EN_RISC));
1089 RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */
1090}
1da177e4
LT		 1091
1092/**************************************************************************
1093 * qla1280_intr_handler
1094 * Handles the H/W interrupt
1095 **************************************************************************/
1096static irqreturn_t
7d12e780 1097qla1280_intr_handler(int irq, void *dev_id)
1da177e4
LT		 1098{
1099 struct scsi_qla_host *ha;
1100 struct device_reg __iomem *reg;
1101 u16 data;
1102 int handled = 0;
1103
1104 ENTER_INTR ("qla1280_intr_handler");
1105 ha = (struct scsi_qla_host *)dev_id;
1106
2dbb04c6 1107 spin_lock(ha->host->host_lock);
1da177e4
LT		 1108
1109 ha->isr_count++;
1110 reg = ha->iobase;
1111
8af50dcd 1112 qla1280_disable_intrs(ha);
1da177e4
LT		 1113
1114 data = qla1280_debounce_register(&reg->istatus);
1115 /* Check for pending interrupts. */
1116 if (data & RISC_INT) {
1117 qla1280_isr(ha, &ha->done_q);
1118 handled = 1;
1119 }
1120 if (!list_empty(&ha->done_q))
1121 qla1280_done(ha);
1122
2dbb04c6 1123 spin_unlock(ha->host->host_lock);
1da177e4 1124
8af50dcd 1125 qla1280_enable_intrs(ha);
1da177e4
LT		 1126
1127 LEAVE_INTR("qla1280_intr_handler");
1128 return IRQ_RETVAL(handled);
1129}
1130
1131
1132static int
1133qla1280_set_target_parameters(struct scsi_qla_host *ha, int bus, int target)
1134{
1135 uint8_t mr;
1136 uint16_t mb[MAILBOX_REGISTER_COUNT];
1137 struct nvram *nv;
7a34766f 1138 int status, lun;
1da177e4
LT		 1139
1140 nv = &ha->nvram;
1141
1142 mr = BIT_3 | BIT_2 | BIT_1 | BIT_0;
1143
1144 /* Set Target Parameters. */
1145 mb[0] = MBC_SET_TARGET_PARAMETERS;
7a34766f
CH		 1146 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
1147 mb[2] = nv->bus[bus].target[target].parameter.renegotiate_on_error << 8;
1148 mb[2] |= nv->bus[bus].target[target].parameter.stop_queue_on_check << 9;
1149 mb[2] |= nv->bus[bus].target[target].parameter.auto_request_sense << 10;
1150 mb[2] |= nv->bus[bus].target[target].parameter.tag_queuing << 11;
1151 mb[2] |= nv->bus[bus].target[target].parameter.enable_sync << 12;
1152 mb[2] |= nv->bus[bus].target[target].parameter.enable_wide << 13;
1153 mb[2] |= nv->bus[bus].target[target].parameter.parity_checking << 14;
1154 mb[2] |= nv->bus[bus].target[target].parameter.disconnect_allowed << 15;
1da177e4
LT		 1155
1156 if (IS_ISP1x160(ha)) {
1157 mb[2] |= nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr << 5;
7a34766f 1158 mb[3] = (nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8);
1da177e4
LT		 1159 mb[6] = (nv->bus[bus].target[target].ppr_1x160.flags.ppr_options << 8) |
1160 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width;
1161 mr |= BIT_6;
1162 } else {
7a34766f 1163 mb[3] = (nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8);
1da177e4 1164 }
7a34766f
CH		 1165 mb[3] |= nv->bus[bus].target[target].sync_period;
1166
1167 status = qla1280_mailbox_command(ha, mr, mb);
1da177e4 1168
7a34766f
CH		 1169 /* Set Device Queue Parameters. */
1170 for (lun = 0; lun < MAX_LUNS; lun++) {
1171 mb[0] = MBC_SET_DEVICE_QUEUE;
1172 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
1173 mb[1] |= lun;
1174 mb[2] = nv->bus[bus].max_queue_depth;
1175 mb[3] = nv->bus[bus].target[target].execution_throttle;
1176 status |= qla1280_mailbox_command(ha, 0x0f, mb);
1177 }
1da177e4
LT		 1178
1179 if (status)
1180 printk(KERN_WARNING "scsi(%ld:%i:%i): "
1181 "qla1280_set_target_parameters() failed\n",
1182 ha->host_no, bus, target);
1183 return status;
1184}
1185
1186
1187/**************************************************************************
1188 * qla1280_slave_configure
1189 *
1190 * Description:
1191 * Determines the queue depth for a given device. There are two ways
1192 * a queue depth can be obtained for a tagged queueing device. One
1193 * way is the default queue depth which is determined by whether
1194 * If it is defined, then it is used
1195 * as the default queue depth. Otherwise, we use either 4 or 8 as the
1196 * default queue depth (dependent on the number of hardware SCBs).
1197 **************************************************************************/
1198static int
1199qla1280_slave_configure(struct scsi_device *device)
1200{
1201 struct scsi_qla_host *ha;
1202 int default_depth = 3;
1203 int bus = device->channel;
1204 int target = device->id;
1205 int status = 0;
1206 struct nvram *nv;
1207 unsigned long flags;
1208
1209 ha = (struct scsi_qla_host *)device->host->hostdata;
1210 nv = &ha->nvram;
1211
1212 if (qla1280_check_for_dead_scsi_bus(ha, bus))
1213 return 1;
1214
1215 if (device->tagged_supported &&
1216 (ha->bus_settings[bus].qtag_enables & (BIT_0 << target))) {
1217 scsi_adjust_queue_depth(device, MSG_ORDERED_TAG,
1218 ha->bus_settings[bus].hiwat);
1219 } else {
1220 scsi_adjust_queue_depth(device, 0, default_depth);
1221 }
1222
7a34766f
CH		 1223 nv->bus[bus].target[target].parameter.enable_sync = device->sdtr;
1224 nv->bus[bus].target[target].parameter.enable_wide = device->wdtr;
1da177e4 1225 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = device->ppr;
1da177e4
LT		 1226
1227 if (driver_setup.no_sync ||
1228 (driver_setup.sync_mask &&
1229 (~driver_setup.sync_mask & (1 << target))))
7a34766f 1230 nv->bus[bus].target[target].parameter.enable_sync = 0;
1da177e4
LT		 1231 if (driver_setup.no_wide ||
1232 (driver_setup.wide_mask &&
1233 (~driver_setup.wide_mask & (1 << target))))
7a34766f 1234 nv->bus[bus].target[target].parameter.enable_wide = 0;
1da177e4
LT		 1235 if (IS_ISP1x160(ha)) {
1236 if (driver_setup.no_ppr ||
1237 (driver_setup.ppr_mask &&
1238 (~driver_setup.ppr_mask & (1 << target))))
1239 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 0;
1240 }
1241
2dbb04c6 1242 spin_lock_irqsave(ha->host->host_lock, flags);
7a34766f 1243 if (nv->bus[bus].target[target].parameter.enable_sync)
1da177e4
LT		 1244 status = qla1280_set_target_parameters(ha, bus, target);
1245 qla1280_get_target_parameters(ha, device);
2dbb04c6 1246 spin_unlock_irqrestore(ha->host->host_lock, flags);
1da177e4
LT		 1247 return status;
1248}
1249
1da177e4
LT		 1250
1251/*
1252 * qla1280_done
1253 * Process completed commands.
1254 *
1255 * Input:
1256 * ha = adapter block pointer.
1da177e4
LT		 1257 */
1258static void
1259qla1280_done(struct scsi_qla_host *ha)
1260{
1261 struct srb *sp;
1262 struct list_head *done_q;
1263 int bus, target, lun;
1264 struct scsi_cmnd *cmd;
1265
1266 ENTER("qla1280_done");
1267
1268 done_q = &ha->done_q;
1269
1270 while (!list_empty(done_q)) {
1271 sp = list_entry(done_q->next, struct srb, list);
1272
1273 list_del(&sp->list);
1274
1275 cmd = sp->cmd;
1276 bus = SCSI_BUS_32(cmd);
1277 target = SCSI_TCN_32(cmd);
1278 lun = SCSI_LUN_32(cmd);
1279
1280 switch ((CMD_RESULT(cmd) >> 16)) {
1281 case DID_RESET:
1282 /* Issue marker command. */
1283 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
1284 break;
1285 case DID_ABORT:
1286 sp->flags &= ~SRB_ABORT_PENDING;
1287 sp->flags |= SRB_ABORTED;
1288 if (sp->flags & SRB_TIMEOUT)
1289 CMD_RESULT(sp->cmd) = DID_TIME_OUT << 16;
1290 break;
1291 default:
1292 break;
1293 }
1294
1295 /* Release memory used for this I/O */
5c1da582 1296 scsi_dma_unmap(cmd);
1da177e4
LT		 1297
1298 /* Call the mid-level driver interrupt handler */
1299 CMD_HANDLE(sp->cmd) = (unsigned char *)INVALID_HANDLE;
1300 ha->actthreads--;
1301
1da177e4
LT		 1302 (*(cmd)->scsi_done)(cmd);
1303
1304 if(sp->wait != NULL)
1305 complete(sp->wait);
1306 }
1307 LEAVE("qla1280_done");
1308}
1309
1310/*
1311 * Translates a ISP error to a Linux SCSI error
1312 */
1313static int
1314qla1280_return_status(struct response * sts, struct scsi_cmnd *cp)
1315{
1316 int host_status = DID_ERROR;
1317 uint16_t comp_status = le16_to_cpu(sts->comp_status);
1318 uint16_t state_flags = le16_to_cpu(sts->state_flags);
3ef49a3b 1319 uint32_t residual_length = le32_to_cpu(sts->residual_length);
1da177e4
LT		 1320 uint16_t scsi_status = le16_to_cpu(sts->scsi_status);
1321#if DEBUG_QLA1280_INTR
1322 static char *reason[] = {
1323 "DID_OK",
1324 "DID_NO_CONNECT",
1325 "DID_BUS_BUSY",
1326 "DID_TIME_OUT",
1327 "DID_BAD_TARGET",
1328 "DID_ABORT",
1329 "DID_PARITY",
1330 "DID_ERROR",
1331 "DID_RESET",
1332 "DID_BAD_INTR"
1333 };
1334#endif /* DEBUG_QLA1280_INTR */
1335
1336 ENTER("qla1280_return_status");
1337
1338#if DEBUG_QLA1280_INTR
1339 /*
1340 dprintk(1, "qla1280_return_status: compl status = 0x%04x\n",
1341 comp_status);
1342 */
1343#endif
1344
1345 switch (comp_status) {
1346 case CS_COMPLETE:
1347 host_status = DID_OK;
1348 break;
1349
1350 case CS_INCOMPLETE:
1351 if (!(state_flags & SF_GOT_BUS))
1352 host_status = DID_NO_CONNECT;
1353 else if (!(state_flags & SF_GOT_TARGET))
1354 host_status = DID_BAD_TARGET;
1355 else if (!(state_flags & SF_SENT_CDB))
1356 host_status = DID_ERROR;
1357 else if (!(state_flags & SF_TRANSFERRED_DATA))
1358 host_status = DID_ERROR;
1359 else if (!(state_flags & SF_GOT_STATUS))
1360 host_status = DID_ERROR;
1361 else if (!(state_flags & SF_GOT_SENSE))
1362 host_status = DID_ERROR;
1363 break;
1364
1365 case CS_RESET:
1366 host_status = DID_RESET;
1367 break;
1368
1369 case CS_ABORTED:
1370 host_status = DID_ABORT;
1371 break;
1372
1373 case CS_TIMEOUT:
1374 host_status = DID_TIME_OUT;
1375 break;
1376
1377 case CS_DATA_OVERRUN:
1378 dprintk(2, "Data overrun 0x%x\n", residual_length);
2b55cac3 1379 dprintk(2, "qla1280_return_status: response packet data\n");
1da177e4
LT		 1380 qla1280_dump_buffer(2, (char *)sts, RESPONSE_ENTRY_SIZE);
1381 host_status = DID_ERROR;
1382 break;
1383
1384 case CS_DATA_UNDERRUN:
5c1da582 1385 if ((scsi_bufflen(cp) - residual_length) <
1da177e4
LT		 1386 cp->underflow) {
1387 printk(KERN_WARNING
1388 "scsi: Underflow detected - retrying "
1389 "command.\n");
1390 host_status = DID_ERROR;
3ef49a3b 1391 } else {
5c1da582 1392 scsi_set_resid(cp, residual_length);
1da177e4 1393 host_status = DID_OK;
3ef49a3b 1394 }
1da177e4
LT		 1395 break;
1396
1397 default:
1398 host_status = DID_ERROR;
1399 break;
1400 }
1401
1402#if DEBUG_QLA1280_INTR
1403 dprintk(1, "qla1280 ISP status: host status (%s) scsi status %x\n",
1404 reason[host_status], scsi_status);
1405#endif
1406
1407 LEAVE("qla1280_return_status");
1408
1409 return (scsi_status & 0xff) | (host_status << 16);
1410}
1411
1412/****************************************************************************/
1413/* QLogic ISP1280 Hardware Support Functions. */
1414/****************************************************************************/
1415
1da177e4
LT		 1416/*
1417 * qla1280_initialize_adapter
1418 * Initialize board.
1419 *
1420 * Input:
1421 * ha = adapter block pointer.
1422 *
1423 * Returns:
1424 * 0 = success
1425 */
1426static int __devinit
1427qla1280_initialize_adapter(struct scsi_qla_host *ha)
1428{
1429 struct device_reg __iomem *reg;
1430 int status;
1431 int bus;
1da177e4 1432 unsigned long flags;
1da177e4
LT		 1433
1434 ENTER("qla1280_initialize_adapter");
1435
1436 /* Clear adapter flags. */
1437 ha->flags.online = 0;
1438 ha->flags.disable_host_adapter = 0;
1439 ha->flags.reset_active = 0;
1440 ha->flags.abort_isp_active = 0;
1441
1da177e4
LT		 1442#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
1443 if (ia64_platform_is("sn2")) {
1444 printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA "
1445 "dual channel lockup workaround\n", ha->host_no);
1446 ha->flags.use_pci_vchannel = 1;
1447 driver_setup.no_nvram = 1;
1448 }
1449#endif
1450
1451 /* TODO: implement support for the 1040 nvram format */
1452 if (IS_ISP1040(ha))
1453 driver_setup.no_nvram = 1;
1454
1455 dprintk(1, "Configure PCI space for adapter...\n");
1456
1457 reg = ha->iobase;
1458
1459 /* Insure mailbox registers are free. */
1460 WRT_REG_WORD(&reg->semaphore, 0);
1461 WRT_REG_WORD(&reg->host_cmd, HC_CLR_RISC_INT);
1462 WRT_REG_WORD(&reg->host_cmd, HC_CLR_HOST_INT);
1463 RD_REG_WORD(&reg->host_cmd);
1464
1465 if (qla1280_read_nvram(ha)) {
1466 dprintk(2, "qla1280_initialize_adapter: failed to read "
1467 "NVRAM\n");
1468 }
1469
1da177e4
LT		 1470 /*
1471 * It's necessary to grab the spin here as qla1280_mailbox_command
1472 * needs to be able to drop the lock unconditionally to wait
1473 * for completion.
1da177e4 1474 */
2dbb04c6 1475 spin_lock_irqsave(ha->host->host_lock, flags);
1da177e4
LT		 1476
1477 status = qla1280_load_firmware(ha);
1478 if (status) {
1479 printk(KERN_ERR "scsi(%li): initialize: pci probe failed!\n",
1480 ha->host_no);
1481 goto out;
1482 }
1483
1484 /* Setup adapter based on NVRAM parameters. */
1485 dprintk(1, "scsi(%ld): Configure NVRAM parameters\n", ha->host_no);
1486 qla1280_nvram_config(ha);
1487
1488 if (ha->flags.disable_host_adapter) {
1489 status = 1;
1490 goto out;
1491 }
1492
1493 status = qla1280_init_rings(ha);
1494 if (status)
1495 goto out;
1496
1497 /* Issue SCSI reset, if we can't reset twice then bus is dead */
1498 for (bus = 0; bus < ha->ports; bus++) {
1499 if (!ha->bus_settings[bus].disable_scsi_reset &&
1500 qla1280_bus_reset(ha, bus) &&
1501 qla1280_bus_reset(ha, bus))
1502 ha->bus_settings[bus].scsi_bus_dead = 1;
1503 }
1504
1505 ha->flags.online = 1;
1506 out:
2dbb04c6
JS		 1507 spin_unlock_irqrestore(ha->host->host_lock, flags);
1508
1da177e4
LT		 1509 if (status)
1510 dprintk(2, "qla1280_initialize_adapter: **** FAILED ****\n");
1511
1512 LEAVE("qla1280_initialize_adapter");
1513 return status;
1514}
1515
1da177e4
LT		 1516/*
1517 * Chip diagnostics
1518 * Test chip for proper operation.
1519 *
1520 * Input:
1521 * ha = adapter block pointer.
1522 *
1523 * Returns:
1524 * 0 = success.
1525 */
1526static int
1527qla1280_chip_diag(struct scsi_qla_host *ha)
1528{
1529 uint16_t mb[MAILBOX_REGISTER_COUNT];
1530 struct device_reg __iomem *reg = ha->iobase;
1531 int status = 0;
1532 int cnt;
1533 uint16_t data;
1534 dprintk(3, "qla1280_chip_diag: testing device at 0x%p \n", &reg->id_l);
1535
1536 dprintk(1, "scsi(%ld): Verifying chip\n", ha->host_no);
1537
1538 /* Soft reset chip and wait for it to finish. */
1539 WRT_REG_WORD(&reg->ictrl, ISP_RESET);
1540
1541 /*
1542 * We can't do a traditional PCI write flush here by reading
1543 * back the register. The card will not respond once the reset
1544 * is in action and we end up with a machine check exception
1545 * instead. Nothing to do but wait and hope for the best.
1546 * A portable pci_write_flush(pdev) call would be very useful here.
1547 */
1548 udelay(20);
1549 data = qla1280_debounce_register(&reg->ictrl);
1550 /*
1551 * Yet another QLogic gem ;-(
1552 */
1553 for (cnt = 1000000; cnt && data & ISP_RESET; cnt--) {
1554 udelay(5);
1555 data = RD_REG_WORD(&reg->ictrl);
1556 }
1557
1558 if (!cnt)
1559 goto fail;
1560
1561 /* Reset register cleared by chip reset. */
1562 dprintk(3, "qla1280_chip_diag: reset register cleared by chip reset\n");
1563
1564 WRT_REG_WORD(&reg->cfg_1, 0);
1565
1566 /* Reset RISC and disable BIOS which
1567 allows RISC to execute out of RAM. */
1568 WRT_REG_WORD(&reg->host_cmd, HC_RESET_RISC |
1569 HC_RELEASE_RISC | HC_DISABLE_BIOS);
1570
1571 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
1572 data = qla1280_debounce_register(&reg->mailbox0);
1573
1574 /*
1575 * I *LOVE* this code!
1576 */
1577 for (cnt = 1000000; cnt && data == MBS_BUSY; cnt--) {
1578 udelay(5);
1579 data = RD_REG_WORD(&reg->mailbox0);
1580 }
1581
1582 if (!cnt)
1583 goto fail;
1584
1585 /* Check product ID of chip */
1586 dprintk(3, "qla1280_chip_diag: Checking product ID of chip\n");
1587
1588 if (RD_REG_WORD(&reg->mailbox1) != PROD_ID_1 ||
1589 (RD_REG_WORD(&reg->mailbox2) != PROD_ID_2 &&
1590 RD_REG_WORD(&reg->mailbox2) != PROD_ID_2a) ||
1591 RD_REG_WORD(&reg->mailbox3) != PROD_ID_3 ||
1592 RD_REG_WORD(&reg->mailbox4) != PROD_ID_4) {
1593 printk(KERN_INFO "qla1280: Wrong product ID = "
1594 "0x%x,0x%x,0x%x,0x%x\n",
1595 RD_REG_WORD(&reg->mailbox1),
1596 RD_REG_WORD(&reg->mailbox2),
1597 RD_REG_WORD(&reg->mailbox3),
1598 RD_REG_WORD(&reg->mailbox4));
1599 goto fail;
1600 }
1601
1602 /*
1603 * Enable ints early!!!
1604 */
1605 qla1280_enable_intrs(ha);
1606
1607 dprintk(1, "qla1280_chip_diag: Checking mailboxes of chip\n");
1608 /* Wrap Incoming Mailboxes Test. */
1609 mb[0] = MBC_MAILBOX_REGISTER_TEST;
1610 mb[1] = 0xAAAA;
1611 mb[2] = 0x5555;
1612 mb[3] = 0xAA55;
1613 mb[4] = 0x55AA;
1614 mb[5] = 0xA5A5;
1615 mb[6] = 0x5A5A;
1616 mb[7] = 0x2525;
1617
1618 status = qla1280_mailbox_command(ha, 0xff, mb);
1619 if (status)
1620 goto fail;
1621
1622 if (mb[1] != 0xAAAA || mb[2] != 0x5555 || mb[3] != 0xAA55 ||
1623 mb[4] != 0x55AA || mb[5] != 0xA5A5 || mb[6] != 0x5A5A ||
1624 mb[7] != 0x2525) {
1625 printk(KERN_INFO "qla1280: Failed mbox check\n");
1626 goto fail;
1627 }
1628
1629 dprintk(3, "qla1280_chip_diag: exiting normally\n");
1630 return 0;
1631 fail:
1632 dprintk(2, "qla1280_chip_diag: **** FAILED ****\n");
1633 return status;
1634}
1635
1636static int
1637qla1280_load_firmware_pio(struct scsi_qla_host *ha)
1638{
1bfa11db
JSR		 1639 const struct firmware *fw;
1640 const __le16 *fw_data;
1641 uint16_t risc_address, risc_code_size;
1da177e4
LT		 1642 uint16_t mb[MAILBOX_REGISTER_COUNT], i;
1643 int err;
1644
1bfa11db
JSR		 1645 err = request_firmware(&fw, ql1280_board_tbl[ha->devnum].fwname,
1646 &ha->pdev->dev);
1647 if (err) {
1648 printk(KERN_ERR "Failed to load image \"%s\" err %d\n",
1649 ql1280_board_tbl[ha->devnum].fwname, err);
1650 return err;
1651 }
1652 if ((fw->size % 2) || (fw->size < 6)) {
1653 printk(KERN_ERR "Bogus length %zu in image \"%s\"\n",
1654 fw->size, ql1280_board_tbl[ha->devnum].fwname);
1655 err = -EINVAL;
1656 goto out;
1657 }
1658 ha->fwver1 = fw->data[0];
1659 ha->fwver2 = fw->data[1];
1660 ha->fwver3 = fw->data[2];
1661 fw_data = (const __le16 *)&fw->data[0];
1662 ha->fwstart = __le16_to_cpu(fw_data[2]);
1663
1da177e4 1664 /* Load RISC code. */
1bfa11db
JSR		 1665 risc_address = ha->fwstart;
1666 fw_data = (const __le16 *)&fw->data[4];
1667 risc_code_size = (fw->size - 6) / 2;
1da177e4
LT		 1668
1669 for (i = 0; i < risc_code_size; i++) {
1670 mb[0] = MBC_WRITE_RAM_WORD;
1671 mb[1] = risc_address + i;
1bfa11db 1672 mb[2] = __le16_to_cpu(fw_data[i]);
1da177e4
LT		 1673
1674 err = qla1280_mailbox_command(ha, BIT_0 | BIT_1 | BIT_2, mb);
1675 if (err) {
1676 printk(KERN_ERR "scsi(%li): Failed to load firmware\n",
1677 ha->host_no);
1bfa11db 1678 goto out;
1da177e4
LT		 1679 }
1680 }
1bfa11db
JSR		 1681out:
1682 release_firmware(fw);
1683 return err;
1da177e4
LT		 1684}
1685
1686#define DUMP_IT_BACK 0 /* for debug of RISC loading */
1687static int
1688qla1280_load_firmware_dma(struct scsi_qla_host *ha)
1689{
1bfa11db
JSR		 1690 const struct firmware *fw;
1691 const __le16 *fw_data;
1692 uint16_t risc_address, risc_code_size;
1da177e4
LT		 1693 uint16_t mb[MAILBOX_REGISTER_COUNT], cnt;
1694 int err = 0, num, i;
1695#if DUMP_IT_BACK
1696 uint8_t *sp, *tbuf;
1697 dma_addr_t p_tbuf;
1698
1699 tbuf = pci_alloc_consistent(ha->pdev, 8000, &p_tbuf);
1700 if (!tbuf)
1701 return -ENOMEM;
1702#endif
1703
1bfa11db
JSR		 1704 err = request_firmware(&fw, ql1280_board_tbl[ha->devnum].fwname,
1705 &ha->pdev->dev);
1706 if (err) {
1707 printk(KERN_ERR "Failed to load image \"%s\" err %d\n",
1708 ql1280_board_tbl[ha->devnum].fwname, err);
1709 return err;
1710 }
1711 if ((fw->size % 2) || (fw->size < 6)) {
1712 printk(KERN_ERR "Bogus length %zu in image \"%s\"\n",
1713 fw->size, ql1280_board_tbl[ha->devnum].fwname);
1714 err = -EINVAL;
1715 goto out;
1716 }
1717 ha->fwver1 = fw->data[0];
1718 ha->fwver2 = fw->data[1];
1719 ha->fwver3 = fw->data[2];
1720 fw_data = (const __le16 *)&fw->data[0];
1721 ha->fwstart = __le16_to_cpu(fw_data[2]);
1722
1da177e4 1723 /* Load RISC code. */
1bfa11db
JSR		 1724 risc_address = ha->fwstart;
1725 fw_data = (const __le16 *)&fw->data[4];
1726 risc_code_size = (fw->size - 6) / 2;
1da177e4
LT		 1727
1728 dprintk(1, "%s: DMA RISC code (%i) words\n",
cadbd4a5 1729 __func__, risc_code_size);
1da177e4
LT		 1730
1731 num = 0;
1732 while (risc_code_size > 0) {
1733 int warn __attribute__((unused)) = 0;
1734
1735 cnt = 2000 >> 1;
1736
1737 if (cnt > risc_code_size)
1738 cnt = risc_code_size;
1739
1740 dprintk(2, "qla1280_setup_chip: loading risc @ =(0x%p),"
1741 "%d,%d(0x%x)\n",
1bfa11db 1742 fw_data, cnt, num, risc_address);
1da177e4 1743 for(i = 0; i < cnt; i++)
1bfa11db 1744 ((__le16 *)ha->request_ring)[i] = fw_data[i];
1da177e4
LT		 1745
1746 mb[0] = MBC_LOAD_RAM;
1747 mb[1] = risc_address;
1748 mb[4] = cnt;
1749 mb[3] = ha->request_dma & 0xffff;
1750 mb[2] = (ha->request_dma >> 16) & 0xffff;
1751 mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff;
1752 mb[6] = pci_dma_hi32(ha->request_dma) >> 16;
1753 dprintk(2, "%s: op=%d 0x%p = 0x%4x,0x%4x,0x%4x,0x%4x\n",
cadbd4a5 1754 __func__, mb[0],
1da177e4
LT		 1755 (void *)(long)ha->request_dma,
1756 mb[6], mb[7], mb[2], mb[3]);
1757 err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 |
1758 BIT_1 | BIT_0, mb);
1759 if (err) {
1760 printk(KERN_ERR "scsi(%li): Failed to load partial "
1761 "segment of f\n", ha->host_no);
1762 goto out;
1763 }
1764
1765#if DUMP_IT_BACK
1766 mb[0] = MBC_DUMP_RAM;
1767 mb[1] = risc_address;
1768 mb[4] = cnt;
1769 mb[3] = p_tbuf & 0xffff;
1770 mb[2] = (p_tbuf >> 16) & 0xffff;
1771 mb[7] = pci_dma_hi32(p_tbuf) & 0xffff;
1772 mb[6] = pci_dma_hi32(p_tbuf) >> 16;
1773
1774 err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 |
1775 BIT_1 | BIT_0, mb);
1776 if (err) {
1777 printk(KERN_ERR
1778 "Failed to dump partial segment of f/w\n");
1779 goto out;
1780 }
1781 sp = (uint8_t *)ha->request_ring;
1782 for (i = 0; i < (cnt << 1); i++) {
1783 if (tbuf[i] != sp[i] && warn++ < 10) {
1784 printk(KERN_ERR "%s: FW compare error @ "
1785 "byte(0x%x) loop#=%x\n",
cadbd4a5 1786 __func__, i, num);
1da177e4
LT		 1787 printk(KERN_ERR "%s: FWbyte=%x "
1788 "FWfromChip=%x\n",
cadbd4a5 1789 __func__, sp[i], tbuf[i]);
1da177e4
LT		 1790 /*break; */
1791 }
1792 }
1793#endif
1794 risc_address += cnt;
1795 risc_code_size = risc_code_size - cnt;
1bfa11db 1796 fw_data = fw_data + cnt;
1da177e4
LT		 1797 num++;
1798 }
1799
1800 out:
1801#if DUMP_IT_BACK
1802 pci_free_consistent(ha->pdev, 8000, tbuf, p_tbuf);
1803#endif
1bfa11db 1804 release_firmware(fw);
1da177e4
LT		 1805 return err;
1806}
1807
1808static int
1809qla1280_start_firmware(struct scsi_qla_host *ha)
1810{
1811 uint16_t mb[MAILBOX_REGISTER_COUNT];
1812 int err;
1813
1814 dprintk(1, "%s: Verifying checksum of loaded RISC code.\n",
cadbd4a5 1815 __func__);
1da177e4
LT		 1816
1817 /* Verify checksum of loaded RISC code. */
1818 mb[0] = MBC_VERIFY_CHECKSUM;
1819 /* mb[1] = ql12_risc_code_addr01; */
1bfa11db 1820 mb[1] = ha->fwstart;
1da177e4
LT		 1821 err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
1822 if (err) {
2b55cac3 1823 printk(KERN_ERR "scsi(%li): RISC checksum failed.\n", ha->host_no);
1da177e4
LT		 1824 return err;
1825 }
1826
1827 /* Start firmware execution. */
cadbd4a5 1828 dprintk(1, "%s: start firmware running.\n", __func__);
1da177e4 1829 mb[0] = MBC_EXECUTE_FIRMWARE;
1bfa11db 1830 mb[1] = ha->fwstart;
1da177e4
LT		 1831 err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
1832 if (err) {
1833 printk(KERN_ERR "scsi(%li): Failed to start firmware\n",
1834 ha->host_no);
1835 }
1836
1837 return err;
1838}
1839
1840static int
1841qla1280_load_firmware(struct scsi_qla_host *ha)
1842{
5c79d615 1843 int err;
1da177e4
LT		 1844
1845 err = qla1280_chip_diag(ha);
1846 if (err)
1847 goto out;
1848 if (IS_ISP1040(ha))
1849 err = qla1280_load_firmware_pio(ha);
1850 else
1851 err = qla1280_load_firmware_dma(ha);
1852 if (err)
1853 goto out;
1854 err = qla1280_start_firmware(ha);
1855 out:
1856 return err;
1857}
1858
1859/*
1860 * Initialize rings
1861 *
1862 * Input:
1863 * ha = adapter block pointer.
1864 * ha->request_ring = request ring virtual address
1865 * ha->response_ring = response ring virtual address
1866 * ha->request_dma = request ring physical address
1867 * ha->response_dma = response ring physical address
1868 *
1869 * Returns:
1870 * 0 = success.
1871 */
1872static int
1873qla1280_init_rings(struct scsi_qla_host *ha)
1874{
1875 uint16_t mb[MAILBOX_REGISTER_COUNT];
1876 int status = 0;
1877
1878 ENTER("qla1280_init_rings");
1879
1880 /* Clear outstanding commands array. */
1881 memset(ha->outstanding_cmds, 0,
1882 sizeof(struct srb *) * MAX_OUTSTANDING_COMMANDS);
1883
1884 /* Initialize request queue. */
1885 ha->request_ring_ptr = ha->request_ring;
1886 ha->req_ring_index = 0;
1887 ha->req_q_cnt = REQUEST_ENTRY_CNT;
1888 /* mb[0] = MBC_INIT_REQUEST_QUEUE; */
1889 mb[0] = MBC_INIT_REQUEST_QUEUE_A64;
1890 mb[1] = REQUEST_ENTRY_CNT;
1891 mb[3] = ha->request_dma & 0xffff;
1892 mb[2] = (ha->request_dma >> 16) & 0xffff;
1893 mb[4] = 0;
1894 mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff;
1895 mb[6] = pci_dma_hi32(ha->request_dma) >> 16;
1896 if (!(status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_4 |
1897 BIT_3 | BIT_2 | BIT_1 | BIT_0,
1898 &mb[0]))) {
1899 /* Initialize response queue. */
1900 ha->response_ring_ptr = ha->response_ring;
1901 ha->rsp_ring_index = 0;
1902 /* mb[0] = MBC_INIT_RESPONSE_QUEUE; */
1903 mb[0] = MBC_INIT_RESPONSE_QUEUE_A64;
1904 mb[1] = RESPONSE_ENTRY_CNT;
1905 mb[3] = ha->response_dma & 0xffff;
1906 mb[2] = (ha->response_dma >> 16) & 0xffff;
1907 mb[5] = 0;
1908 mb[7] = pci_dma_hi32(ha->response_dma) & 0xffff;
1909 mb[6] = pci_dma_hi32(ha->response_dma) >> 16;
1910 status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_5 |
1911 BIT_3 | BIT_2 | BIT_1 | BIT_0,
1912 &mb[0]);
1913 }
1914
1915 if (status)
1916 dprintk(2, "qla1280_init_rings: **** FAILED ****\n");
1917
1918 LEAVE("qla1280_init_rings");
1919 return status;
1920}
1921
1922static void
1923qla1280_print_settings(struct nvram *nv)
1924{
1925 dprintk(1, "qla1280 : initiator scsi id bus[0]=%d\n",
1926 nv->bus[0].config_1.initiator_id);
1927 dprintk(1, "qla1280 : initiator scsi id bus[1]=%d\n",
1928 nv->bus[1].config_1.initiator_id);
1929
1930 dprintk(1, "qla1280 : bus reset delay[0]=%d\n",
1931 nv->bus[0].bus_reset_delay);
1932 dprintk(1, "qla1280 : bus reset delay[1]=%d\n",
1933 nv->bus[1].bus_reset_delay);
1934
1935 dprintk(1, "qla1280 : retry count[0]=%d\n", nv->bus[0].retry_count);
1936 dprintk(1, "qla1280 : retry delay[0]=%d\n", nv->bus[0].retry_delay);
1937 dprintk(1, "qla1280 : retry count[1]=%d\n", nv->bus[1].retry_count);
1938 dprintk(1, "qla1280 : retry delay[1]=%d\n", nv->bus[1].retry_delay);
1939
1940 dprintk(1, "qla1280 : async data setup time[0]=%d\n",
1941 nv->bus[0].config_2.async_data_setup_time);
1942 dprintk(1, "qla1280 : async data setup time[1]=%d\n",
1943 nv->bus[1].config_2.async_data_setup_time);
1944
1945 dprintk(1, "qla1280 : req/ack active negation[0]=%d\n",
1946 nv->bus[0].config_2.req_ack_active_negation);
1947 dprintk(1, "qla1280 : req/ack active negation[1]=%d\n",
1948 nv->bus[1].config_2.req_ack_active_negation);
1949
1950 dprintk(1, "qla1280 : data line active negation[0]=%d\n",
1951 nv->bus[0].config_2.data_line_active_negation);
1952 dprintk(1, "qla1280 : data line active negation[1]=%d\n",
1953 nv->bus[1].config_2.data_line_active_negation);
1954
1955 dprintk(1, "qla1280 : disable loading risc code=%d\n",
1956 nv->cntr_flags_1.disable_loading_risc_code);
1957
1958 dprintk(1, "qla1280 : enable 64bit addressing=%d\n",
1959 nv->cntr_flags_1.enable_64bit_addressing);
1960
1961 dprintk(1, "qla1280 : selection timeout limit[0]=%d\n",
1962 nv->bus[0].selection_timeout);
1963 dprintk(1, "qla1280 : selection timeout limit[1]=%d\n",
1964 nv->bus[1].selection_timeout);
1965
1966 dprintk(1, "qla1280 : max queue depth[0]=%d\n",
1967 nv->bus[0].max_queue_depth);
1968 dprintk(1, "qla1280 : max queue depth[1]=%d\n",
1969 nv->bus[1].max_queue_depth);
1970}
1971
1972static void
1973qla1280_set_target_defaults(struct scsi_qla_host *ha, int bus, int target)
1974{
1975 struct nvram *nv = &ha->nvram;
1976
7a34766f
CH		 1977 nv->bus[bus].target[target].parameter.renegotiate_on_error = 1;
1978 nv->bus[bus].target[target].parameter.auto_request_sense = 1;
1979 nv->bus[bus].target[target].parameter.tag_queuing = 1;
1980 nv->bus[bus].target[target].parameter.enable_sync = 1;
1da177e4 1981#if 1 /* Some SCSI Processors do not seem to like this */
7a34766f 1982 nv->bus[bus].target[target].parameter.enable_wide = 1;
1da177e4 1983#endif
1da177e4
LT		 1984 nv->bus[bus].target[target].execution_throttle =
1985 nv->bus[bus].max_queue_depth - 1;
7a34766f
CH		 1986 nv->bus[bus].target[target].parameter.parity_checking = 1;
1987 nv->bus[bus].target[target].parameter.disconnect_allowed = 1;
1da177e4
LT		 1988
1989 if (IS_ISP1x160(ha)) {
1990 nv->bus[bus].target[target].flags.flags1x160.device_enable = 1;
1991 nv->bus[bus].target[target].flags.flags1x160.sync_offset = 0x0e;
1992 nv->bus[bus].target[target].sync_period = 9;
1993 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 1;
1994 nv->bus[bus].target[target].ppr_1x160.flags.ppr_options = 2;
1995 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width = 1;
1996 } else {
1997 nv->bus[bus].target[target].flags.flags1x80.device_enable = 1;
1998 nv->bus[bus].target[target].flags.flags1x80.sync_offset = 12;
1999 nv->bus[bus].target[target].sync_period = 10;
2000 }
2001}
2002
2003static void
2004qla1280_set_defaults(struct scsi_qla_host *ha)
2005{
2006 struct nvram *nv = &ha->nvram;
2007 int bus, target;
2008
2009 dprintk(1, "Using defaults for NVRAM: \n");
2010 memset(nv, 0, sizeof(struct nvram));
2011
2012 /* nv->cntr_flags_1.disable_loading_risc_code = 1; */
2013 nv->firmware_feature.f.enable_fast_posting = 1;
2014 nv->firmware_feature.f.disable_synchronous_backoff = 1;
0888f4c3
CH		 2015 nv->termination.scsi_bus_0_control = 3;
2016 nv->termination.scsi_bus_1_control = 3;
2017 nv->termination.auto_term_support = 1;
1da177e4
LT		 2018
2019 /*
2020 * Set default FIFO magic - What appropriate values would be here
2021 * is unknown. This is what I have found testing with 12160s.
2022 *
2023 * Now, I would love the magic decoder ring for this one, the
2024 * header file provided by QLogic seems to be bogus or incomplete
2025 * at best.
2026 */
0888f4c3
CH		 2027 nv->isp_config.burst_enable = 1;
2028 if (IS_ISP1040(ha))
2029 nv->isp_config.fifo_threshold |= 3;
2030 else
2031 nv->isp_config.fifo_threshold |= 4;
2032
1da177e4
LT		 2033 if (IS_ISP1x160(ha))
2034 nv->isp_parameter = 0x01; /* fast memory enable */
2035
2036 for (bus = 0; bus < MAX_BUSES; bus++) {
2037 nv->bus[bus].config_1.initiator_id = 7;
2038 nv->bus[bus].config_2.req_ack_active_negation = 1;
2039 nv->bus[bus].config_2.data_line_active_negation = 1;
2040 nv->bus[bus].selection_timeout = 250;
af5741c6 2041 nv->bus[bus].max_queue_depth = 32;
1da177e4
LT		 2042
2043 if (IS_ISP1040(ha)) {
2044 nv->bus[bus].bus_reset_delay = 3;
2045 nv->bus[bus].config_2.async_data_setup_time = 6;
2046 nv->bus[bus].retry_delay = 1;
2047 } else {
2048 nv->bus[bus].bus_reset_delay = 5;
2049 nv->bus[bus].config_2.async_data_setup_time = 8;
2050 }
2051
2052 for (target = 0; target < MAX_TARGETS; target++)
2053 qla1280_set_target_defaults(ha, bus, target);
2054 }
2055}
2056
2057static int
2058qla1280_config_target(struct scsi_qla_host *ha, int bus, int target)
2059{
2060 struct nvram *nv = &ha->nvram;
2061 uint16_t mb[MAILBOX_REGISTER_COUNT];
2062 int status, lun;
7a34766f 2063 uint16_t flag;
1da177e4
LT		 2064
2065 /* Set Target Parameters. */
2066 mb[0] = MBC_SET_TARGET_PARAMETERS;
7a34766f 2067 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
1da177e4
LT		 2068
2069 /*
7a34766f
CH		 2070 * Do not enable sync and ppr for the initial INQUIRY run. We
2071 * enable this later if we determine the target actually
2072 * supports it.
1da177e4 2073 */
7a34766f
CH		 2074 mb[2] = (TP_RENEGOTIATE | TP_AUTO_REQUEST_SENSE | TP_TAGGED_QUEUE
2075 | TP_WIDE | TP_PARITY | TP_DISCONNECT);
1da177e4
LT		 2076
2077 if (IS_ISP1x160(ha))
2078 mb[3] = nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8;
2079 else
2080 mb[3] = nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8;
2081 mb[3] |= nv->bus[bus].target[target].sync_period;
7a34766f 2082 status = qla1280_mailbox_command(ha, 0x0f, mb);
1da177e4
LT		 2083
2084 /* Save Tag queuing enable flag. */
af5741c6 2085 flag = (BIT_0 << target);
7a34766f
CH		 2086 if (nv->bus[bus].target[target].parameter.tag_queuing)
2087 ha->bus_settings[bus].qtag_enables |= flag;
1da177e4
LT		 2088
2089 /* Save Device enable flag. */
2090 if (IS_ISP1x160(ha)) {
2091 if (nv->bus[bus].target[target].flags.flags1x160.device_enable)
7a34766f 2092 ha->bus_settings[bus].device_enables |= flag;
1da177e4
LT		 2093 ha->bus_settings[bus].lun_disables |= 0;
2094 } else {
2095 if (nv->bus[bus].target[target].flags.flags1x80.device_enable)
7a34766f 2096 ha->bus_settings[bus].device_enables |= flag;
1da177e4
LT		 2097 /* Save LUN disable flag. */
2098 if (nv->bus[bus].target[target].flags.flags1x80.lun_disable)
7a34766f 2099 ha->bus_settings[bus].lun_disables |= flag;
1da177e4
LT		 2100 }
2101
2102 /* Set Device Queue Parameters. */
2103 for (lun = 0; lun < MAX_LUNS; lun++) {
2104 mb[0] = MBC_SET_DEVICE_QUEUE;
7a34766f
CH		 2105 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
2106 mb[1] |= lun;
1da177e4
LT		 2107 mb[2] = nv->bus[bus].max_queue_depth;
2108 mb[3] = nv->bus[bus].target[target].execution_throttle;
7a34766f 2109 status |= qla1280_mailbox_command(ha, 0x0f, mb);
1da177e4
LT		 2110 }
2111
2112 return status;
2113}
2114
2115static int
2116qla1280_config_bus(struct scsi_qla_host *ha, int bus)
2117{
2118 struct nvram *nv = &ha->nvram;
2119 uint16_t mb[MAILBOX_REGISTER_COUNT];
2120 int target, status;
2121
2122 /* SCSI Reset Disable. */
2123 ha->bus_settings[bus].disable_scsi_reset =
2124 nv->bus[bus].config_1.scsi_reset_disable;
2125
2126 /* Initiator ID. */
2127 ha->bus_settings[bus].id = nv->bus[bus].config_1.initiator_id;
2128 mb[0] = MBC_SET_INITIATOR_ID;
2129 mb[1] = bus ? ha->bus_settings[bus].id | BIT_7 :
2130 ha->bus_settings[bus].id;
2131 status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2132
2133 /* Reset Delay. */
2134 ha->bus_settings[bus].bus_reset_delay =
2135 nv->bus[bus].bus_reset_delay;
2136
2137 /* Command queue depth per device. */
2138 ha->bus_settings[bus].hiwat = nv->bus[bus].max_queue_depth - 1;
2139
2140 /* Set target parameters. */
2141 for (target = 0; target < MAX_TARGETS; target++)
2142 status |= qla1280_config_target(ha, bus, target);
2143
2144 return status;
2145}
2146
2147static int
2148qla1280_nvram_config(struct scsi_qla_host *ha)
2149{
2150 struct device_reg __iomem *reg = ha->iobase;
2151 struct nvram *nv = &ha->nvram;
2152 int bus, target, status = 0;
2153 uint16_t mb[MAILBOX_REGISTER_COUNT];
1da177e4
LT		 2154
2155 ENTER("qla1280_nvram_config");
2156
2157 if (ha->nvram_valid) {
2158 /* Always force AUTO sense for LINUX SCSI */
2159 for (bus = 0; bus < MAX_BUSES; bus++)
2160 for (target = 0; target < MAX_TARGETS; target++) {
7a34766f 2161 nv->bus[bus].target[target].parameter.
1da177e4
LT		 2162 auto_request_sense = 1;
2163 }
2164 } else {
2165 qla1280_set_defaults(ha);
2166 }
2167
2168 qla1280_print_settings(nv);
2169
2170 /* Disable RISC load of firmware. */
2171 ha->flags.disable_risc_code_load =
2172 nv->cntr_flags_1.disable_loading_risc_code;
2173
2174 if (IS_ISP1040(ha)) {
2175 uint16_t hwrev, cfg1, cdma_conf, ddma_conf;
2176
2177 hwrev = RD_REG_WORD(&reg->cfg_0) & ISP_CFG0_HWMSK;
2178
0888f4c3 2179 cfg1 = RD_REG_WORD(&reg->cfg_1) & ~(BIT_4 | BIT_5 | BIT_6);
1da177e4
LT		 2180 cdma_conf = RD_REG_WORD(&reg->cdma_cfg);
2181 ddma_conf = RD_REG_WORD(&reg->ddma_cfg);
2182
2183 /* Busted fifo, says mjacob. */
0888f4c3
CH		 2184 if (hwrev != ISP_CFG0_1040A)
2185 cfg1 |= nv->isp_config.fifo_threshold << 4;
2186
2187 cfg1 |= nv->isp_config.burst_enable << 2;
2188 WRT_REG_WORD(&reg->cfg_1, cfg1);
1da177e4
LT		 2189
2190 WRT_REG_WORD(&reg->cdma_cfg, cdma_conf | CDMA_CONF_BENAB);
2191 WRT_REG_WORD(&reg->ddma_cfg, cdma_conf | DDMA_CONF_BENAB);
2192 } else {
0888f4c3
CH		 2193 uint16_t cfg1, term;
2194
1da177e4 2195 /* Set ISP hardware DMA burst */
0888f4c3
CH		 2196 cfg1 = nv->isp_config.fifo_threshold << 4;
2197 cfg1 |= nv->isp_config.burst_enable << 2;
1da177e4
LT		 2198 /* Enable DMA arbitration on dual channel controllers */
2199 if (ha->ports > 1)
0888f4c3
CH		 2200 cfg1 |= BIT_13;
2201 WRT_REG_WORD(&reg->cfg_1, cfg1);
1da177e4
LT		 2202
2203 /* Set SCSI termination. */
0888f4c3
CH		 2204 WRT_REG_WORD(&reg->gpio_enable,
2205 BIT_7 | BIT_3 | BIT_2 | BIT_1 | BIT_0);
2206 term = nv->termination.scsi_bus_1_control;
2207 term |= nv->termination.scsi_bus_0_control << 2;
2208 term |= nv->termination.auto_term_support << 7;
2209 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2210 WRT_REG_WORD(&reg->gpio_data, term);
1da177e4 2211 }
0888f4c3 2212 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
1da177e4
LT		 2213
2214 /* ISP parameter word. */
2215 mb[0] = MBC_SET_SYSTEM_PARAMETER;
2216 mb[1] = nv->isp_parameter;
2217 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2218
2219 if (IS_ISP1x40(ha)) {
2220 /* clock rate - for qla1240 and older, only */
2221 mb[0] = MBC_SET_CLOCK_RATE;
2222 mb[1] = 40;
2223 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
2224 }
2225
2226 /* Firmware feature word. */
2227 mb[0] = MBC_SET_FIRMWARE_FEATURES;
7a34766f
CH		 2228 mb[1] = nv->firmware_feature.f.enable_fast_posting;
2229 mb[1] |= nv->firmware_feature.f.report_lvd_bus_transition << 1;
2230 mb[1] |= nv->firmware_feature.f.disable_synchronous_backoff << 5;
1da177e4
LT		 2231#if defined(CONFIG_IA64_GENERIC) || defined (CONFIG_IA64_SGI_SN2)
2232 if (ia64_platform_is("sn2")) {
2233 printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA "
2234 "workaround\n", ha->host_no);
7a34766f 2235 mb[1] |= nv->firmware_feature.f.unused_9 << 9; /* XXX */
1da177e4
LT		 2236 }
2237#endif
7a34766f 2238 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
1da177e4
LT		 2239
2240 /* Retry count and delay. */
2241 mb[0] = MBC_SET_RETRY_COUNT;
2242 mb[1] = nv->bus[0].retry_count;
2243 mb[2] = nv->bus[0].retry_delay;
2244 mb[6] = nv->bus[1].retry_count;
2245 mb[7] = nv->bus[1].retry_delay;
2246 status |= qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_2 |
2247 BIT_1 | BIT_0, &mb[0]);
2248
2249 /* ASYNC data setup time. */
2250 mb[0] = MBC_SET_ASYNC_DATA_SETUP;
2251 mb[1] = nv->bus[0].config_2.async_data_setup_time;
2252 mb[2] = nv->bus[1].config_2.async_data_setup_time;
2253 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2254
2255 /* Active negation states. */
2256 mb[0] = MBC_SET_ACTIVE_NEGATION;
2257 mb[1] = 0;
2258 if (nv->bus[0].config_2.req_ack_active_negation)
2259 mb[1] |= BIT_5;
2260 if (nv->bus[0].config_2.data_line_active_negation)
2261 mb[1] |= BIT_4;
2262 mb[2] = 0;
2263 if (nv->bus[1].config_2.req_ack_active_negation)
2264 mb[2] |= BIT_5;
2265 if (nv->bus[1].config_2.data_line_active_negation)
2266 mb[2] |= BIT_4;
7a34766f 2267 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
1da177e4
LT		 2268
2269 mb[0] = MBC_SET_DATA_OVERRUN_RECOVERY;
2270 mb[1] = 2; /* Reset SCSI bus and return all outstanding IO */
7a34766f 2271 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
1da177e4
LT		 2272
2273 /* thingy */
2274 mb[0] = MBC_SET_PCI_CONTROL;
7a34766f
CH		 2275 mb[1] = BIT_1; /* Data DMA Channel Burst Enable */
2276 mb[2] = BIT_1; /* Command DMA Channel Burst Enable */
2277 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
1da177e4
LT		 2278
2279 mb[0] = MBC_SET_TAG_AGE_LIMIT;
2280 mb[1] = 8;
7a34766f 2281 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
1da177e4
LT		 2282
2283 /* Selection timeout. */
2284 mb[0] = MBC_SET_SELECTION_TIMEOUT;
2285 mb[1] = nv->bus[0].selection_timeout;
2286 mb[2] = nv->bus[1].selection_timeout;
7a34766f 2287 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
1da177e4
LT		 2288
2289 for (bus = 0; bus < ha->ports; bus++)
2290 status |= qla1280_config_bus(ha, bus);
2291
2292 if (status)
2293 dprintk(2, "qla1280_nvram_config: **** FAILED ****\n");
2294
2295 LEAVE("qla1280_nvram_config");
2296 return status;
2297}
2298
2299/*
2300 * Get NVRAM data word
2301 * Calculates word position in NVRAM and calls request routine to
2302 * get the word from NVRAM.
2303 *
2304 * Input:
2305 * ha = adapter block pointer.
2306 * address = NVRAM word address.
2307 *
2308 * Returns:
2309 * data word.
2310 */
2311static uint16_t
2312qla1280_get_nvram_word(struct scsi_qla_host *ha, uint32_t address)
2313{
2314 uint32_t nv_cmd;
2315 uint16_t data;
2316
2317 nv_cmd = address << 16;
2318 nv_cmd |= NV_READ_OP;
2319
2320 data = le16_to_cpu(qla1280_nvram_request(ha, nv_cmd));
2321
2322 dprintk(8, "qla1280_get_nvram_word: exiting normally NVRAM data = "
2323 "0x%x", data);
2324
2325 return data;
2326}
2327
2328/*
2329 * NVRAM request
2330 * Sends read command to NVRAM and gets data from NVRAM.
2331 *
2332 * Input:
2333 * ha = adapter block pointer.
2334 * nv_cmd = Bit 26 = start bit
2335 * Bit 25, 24 = opcode
2336 * Bit 23-16 = address
2337 * Bit 15-0 = write data
2338 *
2339 * Returns:
2340 * data word.
2341 */
2342static uint16_t
2343qla1280_nvram_request(struct scsi_qla_host *ha, uint32_t nv_cmd)
2344{
2345 struct device_reg __iomem *reg = ha->iobase;
2346 int cnt;
2347 uint16_t data = 0;
2348 uint16_t reg_data;
2349
2350 /* Send command to NVRAM. */
2351
2352 nv_cmd <<= 5;
2353 for (cnt = 0; cnt < 11; cnt++) {
2354 if (nv_cmd & BIT_31)
2355 qla1280_nv_write(ha, NV_DATA_OUT);
2356 else
2357 qla1280_nv_write(ha, 0);
2358 nv_cmd <<= 1;
2359 }
2360
2361 /* Read data from NVRAM. */
2362
2363 for (cnt = 0; cnt < 16; cnt++) {
2364 WRT_REG_WORD(&reg->nvram, (NV_SELECT | NV_CLOCK));
2365 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2366 NVRAM_DELAY();
2367 data <<= 1;
2368 reg_data = RD_REG_WORD(&reg->nvram);
2369 if (reg_data & NV_DATA_IN)
2370 data |= BIT_0;
2371 WRT_REG_WORD(&reg->nvram, NV_SELECT);
2372 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2373 NVRAM_DELAY();
2374 }
2375
2376 /* Deselect chip. */
2377
2378 WRT_REG_WORD(&reg->nvram, NV_DESELECT);
2379 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2380 NVRAM_DELAY();
2381
2382 return data;
2383}
2384
2385static void
2386qla1280_nv_write(struct scsi_qla_host *ha, uint16_t data)
2387{
2388 struct device_reg __iomem *reg = ha->iobase;
2389
2390 WRT_REG_WORD(&reg->nvram, data | NV_SELECT);
2391 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2392 NVRAM_DELAY();
2393 WRT_REG_WORD(&reg->nvram, data | NV_SELECT | NV_CLOCK);
2394 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2395 NVRAM_DELAY();
2396 WRT_REG_WORD(&reg->nvram, data | NV_SELECT);
2397 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2398 NVRAM_DELAY();
2399}
2400
2401/*
2402 * Mailbox Command
2403 * Issue mailbox command and waits for completion.
2404 *
2405 * Input:
2406 * ha = adapter block pointer.
2407 * mr = mailbox registers to load.
2408 * mb = data pointer for mailbox registers.
2409 *
2410 * Output:
2411 * mb[MAILBOX_REGISTER_COUNT] = returned mailbox data.
2412 *
2413 * Returns:
2414 * 0 = success
2415 */
2416static int
2417qla1280_mailbox_command(struct scsi_qla_host *ha, uint8_t mr, uint16_t *mb)
2418{
2419 struct device_reg __iomem *reg = ha->iobase;
2420#if 0
2421 LIST_HEAD(done_q);
2422#endif
2423 int status = 0;
2424 int cnt;
2425 uint16_t *optr, *iptr;
2426 uint16_t __iomem *mptr;
2427 uint16_t data;
6e9a4738 2428 DECLARE_COMPLETION_ONSTACK(wait);
1da177e4
LT		 2429 struct timer_list timer;
2430
2431 ENTER("qla1280_mailbox_command");
2432
2433 if (ha->mailbox_wait) {
2434 printk(KERN_ERR "Warning mailbox wait already in use!\n");
2435 }
2436 ha->mailbox_wait = &wait;
2437
2438 /*
2439 * We really should start out by verifying that the mailbox is
2440 * available before starting sending the command data
2441 */
2442 /* Load mailbox registers. */
2443 mptr = (uint16_t __iomem *) &reg->mailbox0;
2444 iptr = mb;
2445 for (cnt = 0; cnt < MAILBOX_REGISTER_COUNT; cnt++) {
2446 if (mr & BIT_0) {
2447 WRT_REG_WORD(mptr, (*iptr));
2448 }
2449
2450 mr >>= 1;
2451 mptr++;
2452 iptr++;
2453 }
2454
2455 /* Issue set host interrupt command. */
2456
2457 /* set up a timer just in case we're really jammed */
2458 init_timer(&timer);
2459 timer.expires = jiffies + 20*HZ;
2460 timer.data = (unsigned long)ha;
2461 timer.function = qla1280_mailbox_timeout;
2462 add_timer(&timer);
2463
2dbb04c6 2464 spin_unlock_irq(ha->host->host_lock);
1da177e4
LT		 2465 WRT_REG_WORD(&reg->host_cmd, HC_SET_HOST_INT);
2466 data = qla1280_debounce_register(&reg->istatus);
2467
2468 wait_for_completion(&wait);
2469 del_timer_sync(&timer);
2470
2dbb04c6 2471 spin_lock_irq(ha->host->host_lock);
1da177e4
LT		 2472
2473 ha->mailbox_wait = NULL;
2474
2475 /* Check for mailbox command timeout. */
2476 if (ha->mailbox_out[0] != MBS_CMD_CMP) {
2477 printk(KERN_WARNING "qla1280_mailbox_command: Command failed, "
2478 "mailbox0 = 0x%04x, mailbox_out0 = 0x%04x, istatus = "
2479 "0x%04x\n",
2480 mb[0], ha->mailbox_out[0], RD_REG_WORD(&reg->istatus));
2481 printk(KERN_WARNING "m0 %04x, m1 %04x, m2 %04x, m3 %04x\n",
2482 RD_REG_WORD(&reg->mailbox0), RD_REG_WORD(&reg->mailbox1),
2483 RD_REG_WORD(&reg->mailbox2), RD_REG_WORD(&reg->mailbox3));
2484 printk(KERN_WARNING "m4 %04x, m5 %04x, m6 %04x, m7 %04x\n",
2485 RD_REG_WORD(&reg->mailbox4), RD_REG_WORD(&reg->mailbox5),
2486 RD_REG_WORD(&reg->mailbox6), RD_REG_WORD(&reg->mailbox7));
2487 status = 1;
2488 }
2489
2490 /* Load return mailbox registers. */
2491 optr = mb;
2492 iptr = (uint16_t *) &ha->mailbox_out[0];
2493 mr = MAILBOX_REGISTER_COUNT;
2494 memcpy(optr, iptr, MAILBOX_REGISTER_COUNT * sizeof(uint16_t));
2495
2496#if 0
2497 /* Go check for any response interrupts pending. */
2498 qla1280_isr(ha, &done_q);
2499#endif
2500
2501 if (ha->flags.reset_marker)
2502 qla1280_rst_aen(ha);
2503
2504#if 0
2505 if (!list_empty(&done_q))
2506 qla1280_done(ha, &done_q);
2507#endif
2508
2509 if (status)
2510 dprintk(2, "qla1280_mailbox_command: **** FAILED, mailbox0 = "
2511 "0x%x ****\n", mb[0]);
2512
2513 LEAVE("qla1280_mailbox_command");
2514 return status;
2515}
2516
2517/*
2518 * qla1280_poll
2519 * Polls ISP for interrupts.
2520 *
2521 * Input:
2522 * ha = adapter block pointer.
2523 */
2524static void
2525qla1280_poll(struct scsi_qla_host *ha)
2526{
2527 struct device_reg __iomem *reg = ha->iobase;
2528 uint16_t data;
2529 LIST_HEAD(done_q);
2530
2531 /* ENTER("qla1280_poll"); */
2532
2533 /* Check for pending interrupts. */
2534 data = RD_REG_WORD(&reg->istatus);
2535 if (data & RISC_INT)
2536 qla1280_isr(ha, &done_q);
2537
2538 if (!ha->mailbox_wait) {
2539 if (ha->flags.reset_marker)
2540 qla1280_rst_aen(ha);
2541 }
2542
2543 if (!list_empty(&done_q))
2544 qla1280_done(ha);
2545
2546 /* LEAVE("qla1280_poll"); */
2547}
2548
2549/*
2550 * qla1280_bus_reset
2551 * Issue SCSI bus reset.
2552 *
2553 * Input:
2554 * ha = adapter block pointer.
2555 * bus = SCSI bus number.
2556 *
2557 * Returns:
2558 * 0 = success
2559 */
2560static int
2561qla1280_bus_reset(struct scsi_qla_host *ha, int bus)
2562{
2563 uint16_t mb[MAILBOX_REGISTER_COUNT];
2564 uint16_t reset_delay;
2565 int status;
2566
2567 dprintk(3, "qla1280_bus_reset: entered\n");
2568
2569 if (qla1280_verbose)
2570 printk(KERN_INFO "scsi(%li:%i): Resetting SCSI BUS\n",
2571 ha->host_no, bus);
2572
2573 reset_delay = ha->bus_settings[bus].bus_reset_delay;
2574 mb[0] = MBC_BUS_RESET;
2575 mb[1] = reset_delay;
2576 mb[2] = (uint16_t) bus;
2577 status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2578
2579 if (status) {
2580 if (ha->bus_settings[bus].failed_reset_count > 2)
2581 ha->bus_settings[bus].scsi_bus_dead = 1;
2582 ha->bus_settings[bus].failed_reset_count++;
2583 } else {
2dbb04c6 2584 spin_unlock_irq(ha->host->host_lock);
117e4b27 2585 ssleep(reset_delay);
2dbb04c6 2586 spin_lock_irq(ha->host->host_lock);
1da177e4
LT		 2587
2588 ha->bus_settings[bus].scsi_bus_dead = 0;
2589 ha->bus_settings[bus].failed_reset_count = 0;
2590 ha->bus_settings[bus].reset_marker = 0;
2591 /* Issue marker command. */
2592 qla1280_marker(ha, bus, 0, 0, MK_SYNC_ALL);
2593 }
2594
2595 /*
2596 * We should probably call qla1280_set_target_parameters()
2597 * here as well for all devices on the bus.
2598 */
2599
2600 if (status)
2601 dprintk(2, "qla1280_bus_reset: **** FAILED ****\n");
2602 else
2603 dprintk(3, "qla1280_bus_reset: exiting normally\n");
2604
2605 return status;
2606}
2607
2608/*
2609 * qla1280_device_reset
2610 * Issue bus device reset message to the target.
2611 *
2612 * Input:
2613 * ha = adapter block pointer.
2614 * bus = SCSI BUS number.
2615 * target = SCSI ID.
2616 *
2617 * Returns:
2618 * 0 = success
2619 */
2620static int
2621qla1280_device_reset(struct scsi_qla_host *ha, int bus, int target)
2622{
2623 uint16_t mb[MAILBOX_REGISTER_COUNT];
2624 int status;
2625
2626 ENTER("qla1280_device_reset");
2627
2628 mb[0] = MBC_ABORT_TARGET;
2629 mb[1] = (bus ? (target | BIT_7) : target) << 8;
2630 mb[2] = 1;
2631 status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
2632
2633 /* Issue marker command. */
2634 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
2635
2636 if (status)
2637 dprintk(2, "qla1280_device_reset: **** FAILED ****\n");
2638
2639 LEAVE("qla1280_device_reset");
2640 return status;
2641}
2642
2643/*
2644 * qla1280_abort_device
2645 * Issue an abort message to the device
2646 *
2647 * Input:
2648 * ha = adapter block pointer.
2649 * bus = SCSI BUS.
2650 * target = SCSI ID.
2651 * lun = SCSI LUN.
2652 *
2653 * Returns:
2654 * 0 = success
2655 */
2656static int
2657qla1280_abort_device(struct scsi_qla_host *ha, int bus, int target, int lun)
2658{
2659 uint16_t mb[MAILBOX_REGISTER_COUNT];
2660 int status;
2661
2662 ENTER("qla1280_abort_device");
2663
2664 mb[0] = MBC_ABORT_DEVICE;
2665 mb[1] = (bus ? target | BIT_7 : target) << 8 | lun;
2666 status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
2667
2668 /* Issue marker command. */
2669 qla1280_marker(ha, bus, target, lun, MK_SYNC_ID_LUN);
2670
2671 if (status)
2672 dprintk(2, "qla1280_abort_device: **** FAILED ****\n");
2673
2674 LEAVE("qla1280_abort_device");
2675 return status;
2676}
2677
2678/*
2679 * qla1280_abort_command
2680 * Abort command aborts a specified IOCB.
2681 *
2682 * Input:
2683 * ha = adapter block pointer.
2684 * sp = SB structure pointer.
2685 *
2686 * Returns:
2687 * 0 = success
2688 */
2689static int
2690qla1280_abort_command(struct scsi_qla_host *ha, struct srb * sp, int handle)
2691{
2692 uint16_t mb[MAILBOX_REGISTER_COUNT];
2693 unsigned int bus, target, lun;
2694 int status;
2695
2696 ENTER("qla1280_abort_command");
2697
2698 bus = SCSI_BUS_32(sp->cmd);
2699 target = SCSI_TCN_32(sp->cmd);
2700 lun = SCSI_LUN_32(sp->cmd);
2701
2702 sp->flags |= SRB_ABORT_PENDING;
2703
2704 mb[0] = MBC_ABORT_COMMAND;
2705 mb[1] = (bus ? target | BIT_7 : target) << 8 | lun;
2706 mb[2] = handle >> 16;
2707 mb[3] = handle & 0xffff;
2708 status = qla1280_mailbox_command(ha, 0x0f, &mb[0]);
2709
2710 if (status) {
2711 dprintk(2, "qla1280_abort_command: **** FAILED ****\n");
2712 sp->flags &= ~SRB_ABORT_PENDING;
2713 }
2714
2715
2716 LEAVE("qla1280_abort_command");
2717 return status;
2718}
2719
2720/*
2721 * qla1280_reset_adapter
2722 * Reset adapter.
2723 *
2724 * Input:
2725 * ha = adapter block pointer.
2726 */
2727static void
2728qla1280_reset_adapter(struct scsi_qla_host *ha)
2729{
2730 struct device_reg __iomem *reg = ha->iobase;
2731
2732 ENTER("qla1280_reset_adapter");
2733
2734 /* Disable ISP chip */
2735 ha->flags.online = 0;
2736 WRT_REG_WORD(&reg->ictrl, ISP_RESET);
2737 WRT_REG_WORD(&reg->host_cmd,
2738 HC_RESET_RISC | HC_RELEASE_RISC | HC_DISABLE_BIOS);
2739 RD_REG_WORD(&reg->id_l); /* Flush PCI write */
2740
2741 LEAVE("qla1280_reset_adapter");
2742}
2743
2744/*
2745 * Issue marker command.
2746 * Function issues marker IOCB.
2747 *
2748 * Input:
2749 * ha = adapter block pointer.
2750 * bus = SCSI BUS number
2751 * id = SCSI ID
2752 * lun = SCSI LUN
2753 * type = marker modifier
2754 */
2755static void
2756qla1280_marker(struct scsi_qla_host *ha, int bus, int id, int lun, u8 type)
2757{
2758 struct mrk_entry *pkt;
2759
2760 ENTER("qla1280_marker");
2761
2762 /* Get request packet. */
2763 if ((pkt = (struct mrk_entry *) qla1280_req_pkt(ha))) {
2764 pkt->entry_type = MARKER_TYPE;
2765 pkt->lun = (uint8_t) lun;
2766 pkt->target = (uint8_t) (bus ? (id | BIT_7) : id);
2767 pkt->modifier = type;
2768 pkt->entry_status = 0;
2769
2770 /* Issue command to ISP */
2771 qla1280_isp_cmd(ha);
2772 }
2773
2774 LEAVE("qla1280_marker");
2775}
2776
2777
2778/*
2779 * qla1280_64bit_start_scsi
2780 * The start SCSI is responsible for building request packets on
2781 * request ring and modifying ISP input pointer.
2782 *
2783 * Input:
2784 * ha = adapter block pointer.
2785 * sp = SB structure pointer.
2786 *
2787 * Returns:
2788 * 0 = success, was able to issue command.
2789 */
2790#ifdef QLA_64BIT_PTR
2791static int
2792qla1280_64bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
2793{
2794 struct device_reg __iomem *reg = ha->iobase;
2795 struct scsi_cmnd *cmd = sp->cmd;
2796 cmd_a64_entry_t *pkt;
8d6810d3 2797 __le32 *dword_ptr;
1da177e4
LT		 2798 dma_addr_t dma_handle;
2799 int status = 0;
2800 int cnt;
2801 int req_cnt;
5c1da582 2802 int seg_cnt;
1da177e4
LT		 2803 u8 dir;
2804
2805 ENTER("qla1280_64bit_start_scsi:");
2806
2807 /* Calculate number of entries and segments required. */
2808 req_cnt = 1;
5c1da582
JS		 2809 seg_cnt = scsi_dma_map(cmd);
2810 if (seg_cnt > 0) {
1da177e4
LT		 2811 if (seg_cnt > 2) {
2812 req_cnt += (seg_cnt - 2) / 5;
2813 if ((seg_cnt - 2) % 5)
2814 req_cnt++;
2815 }
5c1da582
JS		 2816 } else if (seg_cnt < 0) {
2817 status = 1;
2818 goto out;
1da177e4
LT		 2819 }
2820
2821 if ((req_cnt + 2) >= ha->req_q_cnt) {
2822 /* Calculate number of free request entries. */
2823 cnt = RD_REG_WORD(&reg->mailbox4);
2824 if (ha->req_ring_index < cnt)
2825 ha->req_q_cnt = cnt - ha->req_ring_index;
2826 else
2827 ha->req_q_cnt =
2828 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
2829 }
2830
2b55cac3
CH		 2831 dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
2832 ha->req_q_cnt, seg_cnt);
2833
1da177e4
LT		 2834 /* If room for request in request ring. */
2835 if ((req_cnt + 2) >= ha->req_q_cnt) {
2836 status = 1;
2b55cac3 2837 dprintk(2, "qla1280_start_scsi: in-ptr=0x%x req_q_cnt="
1da177e4
LT		 2838 "0x%xreq_cnt=0x%x", ha->req_ring_index, ha->req_q_cnt,
2839 req_cnt);
2840 goto out;
2841 }
2842
2843 /* Check for room in outstanding command list. */
2844 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
9bcf0910 2845 ha->outstanding_cmds[cnt] != NULL; cnt++);
1da177e4
LT		 2846
2847 if (cnt >= MAX_OUTSTANDING_COMMANDS) {
2848 status = 1;
2b55cac3 2849 dprintk(2, "qla1280_start_scsi: NO ROOM IN "
1da177e4
LT		 2850 "OUTSTANDING ARRAY, req_q_cnt=0x%x", ha->req_q_cnt);
2851 goto out;
2852 }
2853
2854 ha->outstanding_cmds[cnt] = sp;
2855 ha->req_q_cnt -= req_cnt;
2856 CMD_HANDLE(sp->cmd) = (unsigned char *)(unsigned long)(cnt + 1);
2857
2b55cac3 2858 dprintk(2, "start: cmd=%p sp=%p CDB=%xm, handle %lx\n", cmd, sp,
1da177e4
LT		 2859 cmd->cmnd[0], (long)CMD_HANDLE(sp->cmd));
2860 dprintk(2, " bus %i, target %i, lun %i\n",
2861 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
2862 qla1280_dump_buffer(2, cmd->cmnd, MAX_COMMAND_SIZE);
2863
2864 /*
2865 * Build command packet.
2866 */
2867 pkt = (cmd_a64_entry_t *) ha->request_ring_ptr;
2868
2869 pkt->entry_type = COMMAND_A64_TYPE;
2870 pkt->entry_count = (uint8_t) req_cnt;
2871 pkt->sys_define = (uint8_t) ha->req_ring_index;
2872 pkt->entry_status = 0;
2873 pkt->handle = cpu_to_le32(cnt);
2874
2875 /* Zero out remaining portion of packet. */
2876 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
2877
2878 /* Set ISP command timeout. */
242f9dcb 2879 pkt->timeout = cpu_to_le16(cmd->request->timeout/HZ);
1da177e4
LT		 2880
2881 /* Set device target ID and LUN */
2882 pkt->lun = SCSI_LUN_32(cmd);
2883 pkt->target = SCSI_BUS_32(cmd) ?
2884 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
2885
2886 /* Enable simple tag queuing if device supports it. */
2dbb04c6 2887 if (cmd->device->simple_tags)
1da177e4
LT		 2888 pkt->control_flags |= cpu_to_le16(BIT_3);
2889
2890 /* Load SCSI command packet. */
2891 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
64a87b24 2892 memcpy(pkt->scsi_cdb, CMD_CDBP(cmd), CMD_CDBLEN(cmd));
1da177e4
LT		 2893 /* dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
2894
2895 /* Set transfer direction. */
2896 dir = qla1280_data_direction(cmd);
2897 pkt->control_flags |= cpu_to_le16(dir);
2898
2899 /* Set total data segment count. */
2900 pkt->dseg_count = cpu_to_le16(seg_cnt);
2901
2902 /*
2903 * Load data segments.
2904 */
2905 if (seg_cnt) { /* If data transfer. */
5c1da582 2906 struct scatterlist *sg, *s;
a0441891 2907 int remseg = seg_cnt;
5c1da582
JS		 2908
2909 sg = scsi_sglist(cmd);
2910
1da177e4
LT		 2911 /* Setup packet address segment pointer. */
2912 dword_ptr = (u32 *)&pkt->dseg_0_address;
2913
5c1da582
JS		 2914 /* Load command entry data segments. */
2915 for_each_sg(sg, s, seg_cnt, cnt) {
2916 if (cnt == 2)
2917 break;
2918
2919 dma_handle = sg_dma_address(s);
2920#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
2921 if (ha->flags.use_pci_vchannel)
2922 sn_pci_set_vchan(ha->pdev,
2923 (unsigned long *)&dma_handle,
2924 SCSI_BUS_32(cmd));
2925#endif
2926 *dword_ptr++ =
2927 cpu_to_le32(pci_dma_lo32(dma_handle));
2928 *dword_ptr++ =
2929 cpu_to_le32(pci_dma_hi32(dma_handle));
2930 *dword_ptr++ = cpu_to_le32(sg_dma_len(s));
2931 dprintk(3, "S/G Segment phys_addr=%x %x, len=0x%x\n",
2932 cpu_to_le32(pci_dma_hi32(dma_handle)),
2933 cpu_to_le32(pci_dma_lo32(dma_handle)),
2934 cpu_to_le32(sg_dma_len(sg_next(s))));
2935 remseg--;
2936 }
2937 dprintk(5, "qla1280_64bit_start_scsi: Scatter/gather "
2938 "command packet data - b %i, t %i, l %i \n",
2939 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd),
2940 SCSI_LUN_32(cmd));
2941 qla1280_dump_buffer(5, (char *)pkt,
2942 REQUEST_ENTRY_SIZE);
2943
2944 /*
2945 * Build continuation packets.
2946 */
2947 dprintk(3, "S/G Building Continuation...seg_cnt=0x%x "
2948 "remains\n", seg_cnt);
2949
2950 while (remseg > 0) {
2951 /* Update sg start */
2952 sg = s;
2953 /* Adjust ring index. */
2954 ha->req_ring_index++;
2955 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
2956 ha->req_ring_index = 0;
2957 ha->request_ring_ptr =
2958 ha->request_ring;
2959 } else
2960 ha->request_ring_ptr++;
2961
2962 pkt = (cmd_a64_entry_t *)ha->request_ring_ptr;
2963
2964 /* Zero out packet. */
2965 memset(pkt, 0, REQUEST_ENTRY_SIZE);
2966
2967 /* Load packet defaults. */
2968 ((struct cont_a64_entry *) pkt)->entry_type =
2969 CONTINUE_A64_TYPE;
2970 ((struct cont_a64_entry *) pkt)->entry_count = 1;
2971 ((struct cont_a64_entry *) pkt)->sys_define =
2972 (uint8_t)ha->req_ring_index;
2973 /* Setup packet address segment pointer. */
2974 dword_ptr =
2975 (u32 *)&((struct cont_a64_entry *) pkt)->dseg_0_address;
2976
2977 /* Load continuation entry data segments. */
2978 for_each_sg(sg, s, remseg, cnt) {
2979 if (cnt == 5)
a0441891
JA		 2980 break;
2981 dma_handle = sg_dma_address(s);
1da177e4
LT		 2982#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
2983 if (ha->flags.use_pci_vchannel)
2984 sn_pci_set_vchan(ha->pdev,
5c1da582 2985 (unsigned long *)&dma_handle,
1da177e4
LT		 2986 SCSI_BUS_32(cmd));
2987#endif
2988 *dword_ptr++ =
2989 cpu_to_le32(pci_dma_lo32(dma_handle));
2990 *dword_ptr++ =
2991 cpu_to_le32(pci_dma_hi32(dma_handle));
5c1da582
JS		 2992 *dword_ptr++ =
2993 cpu_to_le32(sg_dma_len(s));
2994 dprintk(3, "S/G Segment Cont. phys_addr=%x %x, len=0x%x\n",
1da177e4
LT		 2995 cpu_to_le32(pci_dma_hi32(dma_handle)),
2996 cpu_to_le32(pci_dma_lo32(dma_handle)),
5c1da582 2997 cpu_to_le32(sg_dma_len(s)));
1da177e4 2998 }
5c1da582
JS		 2999 remseg -= cnt;
3000 dprintk(5, "qla1280_64bit_start_scsi: "
3001 "continuation packet data - b %i, t "
3002 "%i, l %i \n", SCSI_BUS_32(cmd),
3003 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
1da177e4
LT		 3004 qla1280_dump_buffer(5, (char *)pkt,
3005 REQUEST_ENTRY_SIZE);
3006 }
3007 } else { /* No data transfer */
3008 dprintk(5, "qla1280_64bit_start_scsi: No data, command "
3009 "packet data - b %i, t %i, l %i \n",
3010 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
3011 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
3012 }
3013 /* Adjust ring index. */
3014 ha->req_ring_index++;
3015 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3016 ha->req_ring_index = 0;
3017 ha->request_ring_ptr = ha->request_ring;
3018 } else
3019 ha->request_ring_ptr++;
3020
3021 /* Set chip new ring index. */
3022 dprintk(2,
3023 "qla1280_64bit_start_scsi: Wakeup RISC for pending command\n");
3024 sp->flags |= SRB_SENT;
3025 ha->actthreads++;
3026 WRT_REG_WORD(&reg->mailbox4, ha->req_ring_index);
3027 /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */
3028 mmiowb();
3029
3030 out:
3031 if (status)
3032 dprintk(2, "qla1280_64bit_start_scsi: **** FAILED ****\n");
3033 else
3034 dprintk(3, "qla1280_64bit_start_scsi: exiting normally\n");
3035
3036 return status;
3037}
3038#else /* !QLA_64BIT_PTR */
3039
3040/*
3041 * qla1280_32bit_start_scsi
3042 * The start SCSI is responsible for building request packets on
3043 * request ring and modifying ISP input pointer.
3044 *
3045 * The Qlogic firmware interface allows every queue slot to have a SCSI
3046 * command and up to 4 scatter/gather (SG) entries. If we need more
3047 * than 4 SG entries, then continuation entries are used that can
3048 * hold another 7 entries each. The start routine determines if there
3049 * is eought empty slots then build the combination of requests to
3050 * fulfill the OS request.
3051 *
3052 * Input:
3053 * ha = adapter block pointer.
3054 * sp = SCSI Request Block structure pointer.
3055 *
3056 * Returns:
3057 * 0 = success, was able to issue command.
3058 */
3059static int
3060qla1280_32bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
3061{
3062 struct device_reg __iomem *reg = ha->iobase;
3063 struct scsi_cmnd *cmd = sp->cmd;
3064 struct cmd_entry *pkt;
8d6810d3 3065 __le32 *dword_ptr;
1da177e4
LT		 3066 int status = 0;
3067 int cnt;
3068 int req_cnt;
5c1da582 3069 int seg_cnt;
1da177e4
LT		 3070 u8 dir;
3071
3072 ENTER("qla1280_32bit_start_scsi");
3073
3074 dprintk(1, "32bit_start: cmd=%p sp=%p CDB=%x\n", cmd, sp,
3075 cmd->cmnd[0]);
3076
3077 /* Calculate number of entries and segments required. */
3a43e69c 3078 req_cnt = 1;
5c1da582
JS		 3079 seg_cnt = scsi_dma_map(cmd);
3080 if (seg_cnt) {
1da177e4
LT		 3081 /*
3082 * if greater than four sg entries then we need to allocate
3083 * continuation entries
3084 */
3085 if (seg_cnt > 4) {
3086 req_cnt += (seg_cnt - 4) / 7;
3087 if ((seg_cnt - 4) % 7)
3088 req_cnt++;
3089 }
3090 dprintk(3, "S/G Transfer cmd=%p seg_cnt=0x%x, req_cnt=%x\n",
3091 cmd, seg_cnt, req_cnt);
5c1da582
JS		 3092 } else if (seg_cnt < 0) {
3093 status = 1;
3094 goto out;
1da177e4
LT		 3095 }
3096
3097 if ((req_cnt + 2) >= ha->req_q_cnt) {
3098 /* Calculate number of free request entries. */
3099 cnt = RD_REG_WORD(&reg->mailbox4);
3100 if (ha->req_ring_index < cnt)
3101 ha->req_q_cnt = cnt - ha->req_ring_index;
3102 else
3103 ha->req_q_cnt =
3104 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
3105 }
3106
3107 dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
3108 ha->req_q_cnt, seg_cnt);
3109 /* If room for request in request ring. */
3110 if ((req_cnt + 2) >= ha->req_q_cnt) {
3111 status = 1;
3112 dprintk(2, "qla1280_32bit_start_scsi: in-ptr=0x%x, "
3113 "req_q_cnt=0x%x, req_cnt=0x%x", ha->req_ring_index,
3114 ha->req_q_cnt, req_cnt);
3115 goto out;
3116 }
3117
3118 /* Check for empty slot in outstanding command list. */
3119 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
3120 (ha->outstanding_cmds[cnt] != 0); cnt++) ;
3121
3122 if (cnt >= MAX_OUTSTANDING_COMMANDS) {
3123 status = 1;
3124 dprintk(2, "qla1280_32bit_start_scsi: NO ROOM IN OUTSTANDING "
3125 "ARRAY, req_q_cnt=0x%x\n", ha->req_q_cnt);
3126 goto out;
3127 }
3128
3129 CMD_HANDLE(sp->cmd) = (unsigned char *) (unsigned long)(cnt + 1);
3130 ha->outstanding_cmds[cnt] = sp;
3131 ha->req_q_cnt -= req_cnt;
3132
3133 /*
3134 * Build command packet.
3135 */
3136 pkt = (struct cmd_entry *) ha->request_ring_ptr;
3137
3138 pkt->entry_type = COMMAND_TYPE;
3139 pkt->entry_count = (uint8_t) req_cnt;
3140 pkt->sys_define = (uint8_t) ha->req_ring_index;
3141 pkt->entry_status = 0;
3142 pkt->handle = cpu_to_le32(cnt);
3143
3144 /* Zero out remaining portion of packet. */
3145 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
3146
3147 /* Set ISP command timeout. */
242f9dcb 3148 pkt->timeout = cpu_to_le16(cmd->request->timeout/HZ);
1da177e4
LT		 3149
3150 /* Set device target ID and LUN */
3151 pkt->lun = SCSI_LUN_32(cmd);
3152 pkt->target = SCSI_BUS_32(cmd) ?
3153 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
3154
3155 /* Enable simple tag queuing if device supports it. */
2dbb04c6 3156 if (cmd->device->simple_tags)
1da177e4
LT		 3157 pkt->control_flags |= cpu_to_le16(BIT_3);
3158
3159 /* Load SCSI command packet. */
3160 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
64a87b24 3161 memcpy(pkt->scsi_cdb, CMD_CDBP(cmd), CMD_CDBLEN(cmd));
1da177e4
LT		 3162
3163 /*dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
3164 /* Set transfer direction. */
3165 dir = qla1280_data_direction(cmd);
3166 pkt->control_flags |= cpu_to_le16(dir);
3167
3168 /* Set total data segment count. */
3169 pkt->dseg_count = cpu_to_le16(seg_cnt);
3170
3171 /*
3172 * Load data segments.
3173 */
3174 if (seg_cnt) {
5c1da582 3175 struct scatterlist *sg, *s;
a0441891 3176 int remseg = seg_cnt;
5c1da582
JS		 3177
3178 sg = scsi_sglist(cmd);
3179
1da177e4
LT		 3180 /* Setup packet address segment pointer. */
3181 dword_ptr = &pkt->dseg_0_address;
3182
5c1da582
JS		 3183 dprintk(3, "Building S/G data segments..\n");
3184 qla1280_dump_buffer(1, (char *)sg, 4 * 16);
3185
3186 /* Load command entry data segments. */
3187 for_each_sg(sg, s, seg_cnt, cnt) {
3188 if (cnt == 4)
3189 break;
3190 *dword_ptr++ =
3191 cpu_to_le32(pci_dma_lo32(sg_dma_address(s)));
3192 *dword_ptr++ = cpu_to_le32(sg_dma_len(s));
3193 dprintk(3, "S/G Segment phys_addr=0x%lx, len=0x%x\n",
3194 (pci_dma_lo32(sg_dma_address(s))),
3195 (sg_dma_len(s)));
3196 remseg--;
3197 }
3198 /*
3199 * Build continuation packets.
3200 */
3201 dprintk(3, "S/G Building Continuation"
3202 "...seg_cnt=0x%x remains\n", seg_cnt);
3203 while (remseg > 0) {
3204 /* Continue from end point */
3205 sg = s;
3206 /* Adjust ring index. */
3207 ha->req_ring_index++;
3208 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3209 ha->req_ring_index = 0;
3210 ha->request_ring_ptr =
3211 ha->request_ring;
3212 } else
3213 ha->request_ring_ptr++;
3214
3215 pkt = (struct cmd_entry *)ha->request_ring_ptr;
3216
3217 /* Zero out packet. */
3218 memset(pkt, 0, REQUEST_ENTRY_SIZE);
3219
3220 /* Load packet defaults. */
3221 ((struct cont_entry *) pkt)->
3222 entry_type = CONTINUE_TYPE;
3223 ((struct cont_entry *) pkt)->entry_count = 1;
3224
3225 ((struct cont_entry *) pkt)->sys_define =
3226 (uint8_t) ha->req_ring_index;
1da177e4 3227
5c1da582
JS		 3228 /* Setup packet address segment pointer. */
3229 dword_ptr =
3230 &((struct cont_entry *) pkt)->dseg_0_address;
3231
3232 /* Load continuation entry data segments. */
3233 for_each_sg(sg, s, remseg, cnt) {
3234 if (cnt == 7)
a0441891 3235 break;
1da177e4 3236 *dword_ptr++ =
a0441891 3237 cpu_to_le32(pci_dma_lo32(sg_dma_address(s)));
5c1da582
JS		 3238 *dword_ptr++ =
3239 cpu_to_le32(sg_dma_len(s));
3240 dprintk(1,
3241 "S/G Segment Cont. phys_addr=0x%x, "
3242 "len=0x%x\n",
3243 cpu_to_le32(pci_dma_lo32(sg_dma_address(s))),
3244 cpu_to_le32(sg_dma_len(s)));
1da177e4 3245 }
5c1da582
JS		 3246 remseg -= cnt;
3247 dprintk(5, "qla1280_32bit_start_scsi: "
3248 "continuation packet data - "
3249 "scsi(%i:%i:%i)\n", SCSI_BUS_32(cmd),
3250 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
3251 qla1280_dump_buffer(5, (char *)pkt,
3252 REQUEST_ENTRY_SIZE);
1da177e4
LT		 3253 }
3254 } else { /* No data transfer at all */
3255 dprintk(5, "qla1280_32bit_start_scsi: No data, command "
3256 "packet data - \n");
3257 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
3258 }
3259 dprintk(5, "qla1280_32bit_start_scsi: First IOCB block:\n");
3260 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
3261 REQUEST_ENTRY_SIZE);
3262
3263 /* Adjust ring index. */
3264 ha->req_ring_index++;
3265 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3266 ha->req_ring_index = 0;
3267 ha->request_ring_ptr = ha->request_ring;
3268 } else
3269 ha->request_ring_ptr++;
3270
3271 /* Set chip new ring index. */
3272 dprintk(2, "qla1280_32bit_start_scsi: Wakeup RISC "
3273 "for pending command\n");
3274 sp->flags |= SRB_SENT;
3275 ha->actthreads++;
3276 WRT_REG_WORD(&reg->mailbox4, ha->req_ring_index);
3277 /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */
3278 mmiowb();
3279
3280out:
3281 if (status)
3282 dprintk(2, "qla1280_32bit_start_scsi: **** FAILED ****\n");
3283
3284 LEAVE("qla1280_32bit_start_scsi");
3285
3286 return status;
3287}
3288#endif
3289
3290/*
3291 * qla1280_req_pkt
3292 * Function is responsible for locking ring and
3293 * getting a zeroed out request packet.
3294 *
3295 * Input:
3296 * ha = adapter block pointer.
3297 *
3298 * Returns:
3299 * 0 = failed to get slot.
3300 */
3301static request_t *
3302qla1280_req_pkt(struct scsi_qla_host *ha)
3303{
3304 struct device_reg __iomem *reg = ha->iobase;
3305 request_t *pkt = NULL;
3306 int cnt;
3307 uint32_t timer;
3308
3309 ENTER("qla1280_req_pkt");
3310
3311 /*
3312 * This can be called from interrupt context, damn it!!!
3313 */
3314 /* Wait for 30 seconds for slot. */
3315 for (timer = 15000000; timer; timer--) {
3316 if (ha->req_q_cnt > 0) {
3317 /* Calculate number of free request entries. */
3318 cnt = RD_REG_WORD(&reg->mailbox4);
3319 if (ha->req_ring_index < cnt)
3320 ha->req_q_cnt = cnt - ha->req_ring_index;
3321 else
3322 ha->req_q_cnt =
3323 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
3324 }
3325
3326 /* Found empty request ring slot? */
3327 if (ha->req_q_cnt > 0) {
3328 ha->req_q_cnt--;
3329 pkt = ha->request_ring_ptr;
3330
3331 /* Zero out packet. */
3332 memset(pkt, 0, REQUEST_ENTRY_SIZE);
3333
3334 /*
3335 * How can this be right when we have a ring
3336 * size of 512???
3337 */
3338 /* Set system defined field. */
3339 pkt->sys_define = (uint8_t) ha->req_ring_index;
3340
3341 /* Set entry count. */
3342 pkt->entry_count = 1;
3343
3344 break;
3345 }
3346
3347 udelay(2); /* 10 */
3348
3349 /* Check for pending interrupts. */
3350 qla1280_poll(ha);
3351 }
3352
3353 if (!pkt)
3354 dprintk(2, "qla1280_req_pkt: **** FAILED ****\n");
3355 else
3356 dprintk(3, "qla1280_req_pkt: exiting normally\n");
3357
3358 return pkt;
3359}
3360
3361/*
3362 * qla1280_isp_cmd
3363 * Function is responsible for modifying ISP input pointer.
3364 * Releases ring lock.
3365 *
3366 * Input:
3367 * ha = adapter block pointer.
3368 */
3369static void
3370qla1280_isp_cmd(struct scsi_qla_host *ha)
3371{
3372 struct device_reg __iomem *reg = ha->iobase;
3373
3374 ENTER("qla1280_isp_cmd");
3375
3376 dprintk(5, "qla1280_isp_cmd: IOCB data:\n");
3377 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
3378 REQUEST_ENTRY_SIZE);
3379
3380 /* Adjust ring index. */
3381 ha->req_ring_index++;
3382 if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
3383 ha->req_ring_index = 0;
3384 ha->request_ring_ptr = ha->request_ring;
3385 } else
3386 ha->request_ring_ptr++;
3387
3388 /*
3389 * Update request index to mailbox4 (Request Queue In).
3390 * The mmiowb() ensures that this write is ordered with writes by other
3391 * CPUs. Without the mmiowb(), it is possible for the following:
3392 * CPUA posts write of index 5 to mailbox4
3393 * CPUA releases host lock
3394 * CPUB acquires host lock
3395 * CPUB posts write of index 6 to mailbox4
3396 * On PCI bus, order reverses and write of 6 posts, then index 5,
3397 * causing chip to issue full queue of stale commands
3398 * The mmiowb() prevents future writes from crossing the barrier.
3399 * See Documentation/DocBook/deviceiobook.tmpl for more information.
3400 */
3401 WRT_REG_WORD(&reg->mailbox4, ha->req_ring_index);
3402 mmiowb();
3403
3404 LEAVE("qla1280_isp_cmd");
3405}
3406
3407/****************************************************************************/
3408/* Interrupt Service Routine. */
3409/****************************************************************************/
3410
3411/****************************************************************************
3412 * qla1280_isr
3413 * Calls I/O done on command completion.
3414 *
3415 * Input:
3416 * ha = adapter block pointer.
3417 * done_q = done queue.
3418 ****************************************************************************/
3419static void
3420qla1280_isr(struct scsi_qla_host *ha, struct list_head *done_q)
3421{
3422 struct device_reg __iomem *reg = ha->iobase;
3423 struct response *pkt;
3424 struct srb *sp = NULL;
3425 uint16_t mailbox[MAILBOX_REGISTER_COUNT];
3426 uint16_t *wptr;
3427 uint32_t index;
3428 u16 istatus;
3429
3430 ENTER("qla1280_isr");
3431
3432 istatus = RD_REG_WORD(&reg->istatus);
3433 if (!(istatus & (RISC_INT | PCI_INT)))
3434 return;
3435
3436 /* Save mailbox register 5 */
3437 mailbox[5] = RD_REG_WORD(&reg->mailbox5);
3438
3439 /* Check for mailbox interrupt. */
3440
3441 mailbox[0] = RD_REG_WORD_dmasync(&reg->semaphore);
3442
3443 if (mailbox[0] & BIT_0) {
3444 /* Get mailbox data. */
3445 /* dprintk(1, "qla1280_isr: In Get mailbox data \n"); */
3446
3447 wptr = &mailbox[0];
3448 *wptr++ = RD_REG_WORD(&reg->mailbox0);
3449 *wptr++ = RD_REG_WORD(&reg->mailbox1);
3450 *wptr = RD_REG_WORD(&reg->mailbox2);
3451 if (mailbox[0] != MBA_SCSI_COMPLETION) {
3452 wptr++;
3453 *wptr++ = RD_REG_WORD(&reg->mailbox3);
3454 *wptr++ = RD_REG_WORD(&reg->mailbox4);
3455 wptr++;
3456 *wptr++ = RD_REG_WORD(&reg->mailbox6);
3457 *wptr = RD_REG_WORD(&reg->mailbox7);
3458 }
3459
3460 /* Release mailbox registers. */
3461
3462 WRT_REG_WORD(&reg->semaphore, 0);
3463 WRT_REG_WORD(&reg->host_cmd, HC_CLR_RISC_INT);
3464
3465 dprintk(5, "qla1280_isr: mailbox interrupt mailbox[0] = 0x%x",
3466 mailbox[0]);
3467
3468 /* Handle asynchronous event */
3469 switch (mailbox[0]) {
3470 case MBA_SCSI_COMPLETION: /* Response completion */
3471 dprintk(5, "qla1280_isr: mailbox SCSI response "
3472 "completion\n");
3473
3474 if (ha->flags.online) {
3475 /* Get outstanding command index. */
3476 index = mailbox[2] << 16 | mailbox[1];
3477
3478 /* Validate handle. */
3479 if (index < MAX_OUTSTANDING_COMMANDS)
3480 sp = ha->outstanding_cmds[index];
3481 else
3482 sp = NULL;
3483
3484 if (sp) {
3485 /* Free outstanding command slot. */
3486 ha->outstanding_cmds[index] = NULL;
3487
3488 /* Save ISP completion status */
3489 CMD_RESULT(sp->cmd) = 0;
3490
3491 /* Place block on done queue */
3492 list_add_tail(&sp->list, done_q);
3493 } else {
3494 /*
3495 * If we get here we have a real problem!
3496 */
3497 printk(KERN_WARNING
3498 "qla1280: ISP invalid handle");
3499 }
3500 }
3501 break;
3502
3503 case MBA_BUS_RESET: /* SCSI Bus Reset */
3504 ha->flags.reset_marker = 1;
3505 index = mailbox[6] & BIT_0;
3506 ha->bus_settings[index].reset_marker = 1;
3507
3508 printk(KERN_DEBUG "qla1280_isr(): index %i "
3509 "asynchronous BUS_RESET\n", index);
3510 break;
3511
3512 case MBA_SYSTEM_ERR: /* System Error */
3513 printk(KERN_WARNING
3514 "qla1280: ISP System Error - mbx1=%xh, mbx2="
3515 "%xh, mbx3=%xh\n", mailbox[1], mailbox[2],
3516 mailbox[3]);
3517 break;
3518
3519 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
3520 printk(KERN_WARNING
3521 "qla1280: ISP Request Transfer Error\n");
3522 break;
3523
3524 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
3525 printk(KERN_WARNING
3526 "qla1280: ISP Response Transfer Error\n");
3527 break;
3528
3529 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
3530 dprintk(2, "qla1280_isr: asynchronous WAKEUP_THRES\n");
3531 break;
3532
3533 case MBA_TIMEOUT_RESET: /* Execution Timeout Reset */
3534 dprintk(2,
3535 "qla1280_isr: asynchronous TIMEOUT_RESET\n");
3536 break;
3537
3538 case MBA_DEVICE_RESET: /* Bus Device Reset */
3539 printk(KERN_INFO "qla1280_isr(): asynchronous "
3540 "BUS_DEVICE_RESET\n");
3541
3542 ha->flags.reset_marker = 1;
3543 index = mailbox[6] & BIT_0;
3544 ha->bus_settings[index].reset_marker = 1;
3545 break;
3546
3547 case MBA_BUS_MODE_CHANGE:
3548 dprintk(2,
3549 "qla1280_isr: asynchronous BUS_MODE_CHANGE\n");
3550 break;
3551
3552 default:
3553 /* dprintk(1, "qla1280_isr: default case of switch MB \n"); */
3554 if (mailbox[0] < MBA_ASYNC_EVENT) {
3555 wptr = &mailbox[0];
3556 memcpy((uint16_t *) ha->mailbox_out, wptr,
3557 MAILBOX_REGISTER_COUNT *
3558 sizeof(uint16_t));
3559
3560 if(ha->mailbox_wait != NULL)
3561 complete(ha->mailbox_wait);
3562 }
3563 break;
3564 }
3565 } else {
3566 WRT_REG_WORD(&reg->host_cmd, HC_CLR_RISC_INT);
3567 }
3568
3569 /*
3570 * We will receive interrupts during mailbox testing prior to
3571 * the card being marked online, hence the double check.
3572 */
3573 if (!(ha->flags.online && !ha->mailbox_wait)) {
3574 dprintk(2, "qla1280_isr: Response pointer Error\n");
3575 goto out;
3576 }
3577
3578 if (mailbox[5] >= RESPONSE_ENTRY_CNT)
3579 goto out;
3580
3581 while (ha->rsp_ring_index != mailbox[5]) {
3582 pkt = ha->response_ring_ptr;
3583
3584 dprintk(5, "qla1280_isr: ha->rsp_ring_index = 0x%x, mailbox[5]"
3585 " = 0x%x\n", ha->rsp_ring_index, mailbox[5]);
3586 dprintk(5,"qla1280_isr: response packet data\n");
3587 qla1280_dump_buffer(5, (char *)pkt, RESPONSE_ENTRY_SIZE);
3588
3589 if (pkt->entry_type == STATUS_TYPE) {
3590 if ((le16_to_cpu(pkt->scsi_status) & 0xff)
3591 || pkt->comp_status || pkt->entry_status) {
3592 dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
3593 "0x%x mailbox[5] = 0x%x, comp_status "
3594 "= 0x%x, scsi_status = 0x%x\n",
3595 ha->rsp_ring_index, mailbox[5],
3596 le16_to_cpu(pkt->comp_status),
3597 le16_to_cpu(pkt->scsi_status));
3598 }
3599 } else {
3600 dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
3601 "0x%x, mailbox[5] = 0x%x\n",
3602 ha->rsp_ring_index, mailbox[5]);
3603 dprintk(2, "qla1280_isr: response packet data\n");
3604 qla1280_dump_buffer(2, (char *)pkt,
3605 RESPONSE_ENTRY_SIZE);
3606 }
3607
3608 if (pkt->entry_type == STATUS_TYPE || pkt->entry_status) {
3609 dprintk(2, "status: Cmd %p, handle %i\n",
3610 ha->outstanding_cmds[pkt->handle]->cmd,
3611 pkt->handle);
3612 if (pkt->entry_type == STATUS_TYPE)
3613 qla1280_status_entry(ha, pkt, done_q);
3614 else
3615 qla1280_error_entry(ha, pkt, done_q);
3616 /* Adjust ring index. */
3617 ha->rsp_ring_index++;
3618 if (ha->rsp_ring_index == RESPONSE_ENTRY_CNT) {
3619 ha->rsp_ring_index = 0;
3620 ha->response_ring_ptr = ha->response_ring;
3621 } else
3622 ha->response_ring_ptr++;
3623 WRT_REG_WORD(&reg->mailbox5, ha->rsp_ring_index);
3624 }
3625 }
3626
3627 out:
3628 LEAVE("qla1280_isr");
3629}
3630
3631/*
3632 * qla1280_rst_aen
3633 * Processes asynchronous reset.
3634 *
3635 * Input:
3636 * ha = adapter block pointer.
3637 */
3638static void
3639qla1280_rst_aen(struct scsi_qla_host *ha)
3640{
3641 uint8_t bus;
3642
3643 ENTER("qla1280_rst_aen");
3644
3645 if (ha->flags.online && !ha->flags.reset_active &&
3646 !ha->flags.abort_isp_active) {
3647 ha->flags.reset_active = 1;
3648 while (ha->flags.reset_marker) {
3649 /* Issue marker command. */
3650 ha->flags.reset_marker = 0;
3651 for (bus = 0; bus < ha->ports &&
3652 !ha->flags.reset_marker; bus++) {
3653 if (ha->bus_settings[bus].reset_marker) {
3654 ha->bus_settings[bus].reset_marker = 0;
3655 qla1280_marker(ha, bus, 0, 0,
3656 MK_SYNC_ALL);
3657 }
3658 }
3659 }
3660 }
3661
3662 LEAVE("qla1280_rst_aen");
3663}
3664
3665
1da177e4
LT		 3666/*
3667 * qla1280_status_entry
3668 * Processes received ISP status entry.
3669 *
3670 * Input:
3671 * ha = adapter block pointer.
3672 * pkt = entry pointer.
3673 * done_q = done queue.
3674 */
3675static void
3676qla1280_status_entry(struct scsi_qla_host *ha, struct response *pkt,
3677 struct list_head *done_q)
3678{
3679 unsigned int bus, target, lun;
3680 int sense_sz;
3681 struct srb *sp;
3682 struct scsi_cmnd *cmd;
3683 uint32_t handle = le32_to_cpu(pkt->handle);
3684 uint16_t scsi_status = le16_to_cpu(pkt->scsi_status);
3685 uint16_t comp_status = le16_to_cpu(pkt->comp_status);
3686
3687 ENTER("qla1280_status_entry");
3688
3689 /* Validate handle. */
3690 if (handle < MAX_OUTSTANDING_COMMANDS)
3691 sp = ha->outstanding_cmds[handle];
3692 else
3693 sp = NULL;
3694
3695 if (!sp) {
3696 printk(KERN_WARNING "qla1280: Status Entry invalid handle\n");
3697 goto out;
3698 }
3699
3700 /* Free outstanding command slot. */
3701 ha->outstanding_cmds[handle] = NULL;
3702
3703 cmd = sp->cmd;
3704
3705 /* Generate LU queue on cntrl, target, LUN */
3706 bus = SCSI_BUS_32(cmd);
3707 target = SCSI_TCN_32(cmd);
3708 lun = SCSI_LUN_32(cmd);
3709
3710 if (comp_status || scsi_status) {
3711 dprintk(3, "scsi: comp_status = 0x%x, scsi_status = "
3712 "0x%x, handle = 0x%x\n", comp_status,
3713 scsi_status, handle);
3714 }
3715
7d0e11fb
JH		 3716 /* Target busy or queue full */
3717 if ((scsi_status & 0xFF) == SAM_STAT_TASK_SET_FULL ||
3718 (scsi_status & 0xFF) == SAM_STAT_BUSY) {
3719 CMD_RESULT(cmd) = scsi_status & 0xff;
1da177e4
LT		 3720 } else {
3721
3722 /* Save ISP completion status */
3723 CMD_RESULT(cmd) = qla1280_return_status(pkt, cmd);
3724
d6db3e8d 3725 if (scsi_status & SAM_STAT_CHECK_CONDITION) {
1da177e4
LT		 3726 if (comp_status != CS_ARS_FAILED) {
3727 uint16_t req_sense_length =
3728 le16_to_cpu(pkt->req_sense_length);
3729 if (req_sense_length < CMD_SNSLEN(cmd))
3730 sense_sz = req_sense_length;
3731 else
3732 /*
3733 * scsi_cmnd->sense_buffer is
3734 * 64 bytes, why only copy 63?
3735 * This looks wrong! /Jes
3736 */
3737 sense_sz = CMD_SNSLEN(cmd) - 1;
3738
3739 memcpy(cmd->sense_buffer,
3740 &pkt->req_sense_data, sense_sz);
3741 } else
3742 sense_sz = 0;
3743 memset(cmd->sense_buffer + sense_sz, 0,
b80ca4f7 3744 SCSI_SENSE_BUFFERSIZE - sense_sz);
1da177e4
LT		 3745
3746 dprintk(2, "qla1280_status_entry: Check "
3747 "condition Sense data, b %i, t %i, "
3748 "l %i\n", bus, target, lun);
3749 if (sense_sz)
3750 qla1280_dump_buffer(2,
3751 (char *)cmd->sense_buffer,
3752 sense_sz);
3753 }
3754 }
3755
3756 /* Place command on done queue. */
3757 list_add_tail(&sp->list, done_q);
3758 out:
3759 LEAVE("qla1280_status_entry");
3760}
3761
3762/*
3763 * qla1280_error_entry
3764 * Processes error entry.
3765 *
3766 * Input:
3767 * ha = adapter block pointer.
3768 * pkt = entry pointer.
3769 * done_q = done queue.
3770 */
3771static void
3772qla1280_error_entry(struct scsi_qla_host *ha, struct response *pkt,
3773 struct list_head *done_q)
3774{
3775 struct srb *sp;
3776 uint32_t handle = le32_to_cpu(pkt->handle);
3777
3778 ENTER("qla1280_error_entry");
3779
3780 if (pkt->entry_status & BIT_3)
3781 dprintk(2, "qla1280_error_entry: BAD PAYLOAD flag error\n");
3782 else if (pkt->entry_status & BIT_2)
3783 dprintk(2, "qla1280_error_entry: BAD HEADER flag error\n");
3784 else if (pkt->entry_status & BIT_1)
3785 dprintk(2, "qla1280_error_entry: FULL flag error\n");
3786 else
3787 dprintk(2, "qla1280_error_entry: UNKNOWN flag error\n");
3788
3789 /* Validate handle. */
3790 if (handle < MAX_OUTSTANDING_COMMANDS)
3791 sp = ha->outstanding_cmds[handle];
3792 else
3793 sp = NULL;
3794
3795 if (sp) {
3796 /* Free outstanding command slot. */
3797 ha->outstanding_cmds[handle] = NULL;
3798
3799 /* Bad payload or header */
3800 if (pkt->entry_status & (BIT_3 + BIT_2)) {
3801 /* Bad payload or header, set error status. */
3802 /* CMD_RESULT(sp->cmd) = CS_BAD_PAYLOAD; */
3803 CMD_RESULT(sp->cmd) = DID_ERROR << 16;
3804 } else if (pkt->entry_status & BIT_1) { /* FULL flag */
3805 CMD_RESULT(sp->cmd) = DID_BUS_BUSY << 16;
3806 } else {
3807 /* Set error status. */
3808 CMD_RESULT(sp->cmd) = DID_ERROR << 16;
3809 }
3810
3811 /* Place command on done queue. */
3812 list_add_tail(&sp->list, done_q);
3813 }
3814#ifdef QLA_64BIT_PTR
3815 else if (pkt->entry_type == COMMAND_A64_TYPE) {
3816 printk(KERN_WARNING "!qla1280: Error Entry invalid handle");
3817 }
3818#endif
3819
3820 LEAVE("qla1280_error_entry");
3821}
3822
3823/*
3824 * qla1280_abort_isp
3825 * Resets ISP and aborts all outstanding commands.
3826 *
3827 * Input:
3828 * ha = adapter block pointer.
3829 *
3830 * Returns:
3831 * 0 = success
3832 */
3833static int
3834qla1280_abort_isp(struct scsi_qla_host *ha)
3835{
3836 struct device_reg __iomem *reg = ha->iobase;
3837 struct srb *sp;
3838 int status = 0;
3839 int cnt;
3840 int bus;
3841
3842 ENTER("qla1280_abort_isp");
3843
3844 if (ha->flags.abort_isp_active || !ha->flags.online)
3845 goto out;
3846
3847 ha->flags.abort_isp_active = 1;
3848
3849 /* Disable ISP interrupts. */
3850 qla1280_disable_intrs(ha);
3851 WRT_REG_WORD(&reg->host_cmd, HC_PAUSE_RISC);
3852 RD_REG_WORD(&reg->id_l);
3853
3854 printk(KERN_INFO "scsi(%li): dequeuing outstanding commands\n",
3855 ha->host_no);
3856 /* Dequeue all commands in outstanding command list. */
3857 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
3858 struct scsi_cmnd *cmd;
3859 sp = ha->outstanding_cmds[cnt];
3860 if (sp) {
3861
3862 cmd = sp->cmd;
3863 CMD_RESULT(cmd) = DID_RESET << 16;
3864
3865 sp->cmd = NULL;
3866 ha->outstanding_cmds[cnt] = NULL;
3867
3868 (*cmd->scsi_done)(cmd);
3869
3870 sp->flags = 0;
3871 }
3872 }
3873
3874 status = qla1280_load_firmware(ha);
3875 if (status)
3876 goto out;
3877
3878 /* Setup adapter based on NVRAM parameters. */
3879 qla1280_nvram_config (ha);
3880
3881 status = qla1280_init_rings(ha);
3882 if (status)
3883 goto out;
3884
3885 /* Issue SCSI reset. */
3886 for (bus = 0; bus < ha->ports; bus++)
3887 qla1280_bus_reset(ha, bus);
3888
3889 ha->flags.abort_isp_active = 0;
3890 out:
3891 if (status) {
3892 printk(KERN_WARNING
3893 "qla1280: ISP error recovery failed, board disabled");
3894 qla1280_reset_adapter(ha);
3895 dprintk(2, "qla1280_abort_isp: **** FAILED ****\n");
3896 }
3897
3898 LEAVE("qla1280_abort_isp");
3899 return status;
3900}
3901
3902
3903/*
3904 * qla1280_debounce_register
3905 * Debounce register.
3906 *
3907 * Input:
3908 * port = register address.
3909 *
3910 * Returns:
3911 * register value.
3912 */
3913static u16
3914qla1280_debounce_register(volatile u16 __iomem * addr)
3915{
3916 volatile u16 ret;
3917 volatile u16 ret2;
3918
3919 ret = RD_REG_WORD(addr);
3920 ret2 = RD_REG_WORD(addr);
3921
3922 if (ret == ret2)
3923 return ret;
3924
3925 do {
3926 cpu_relax();
3927 ret = RD_REG_WORD(addr);
3928 ret2 = RD_REG_WORD(addr);
3929 } while (ret != ret2);
3930
3931 return ret;
3932}
3933
3934
3935/************************************************************************
3936 * qla1280_check_for_dead_scsi_bus *
3937 * *
3938 * This routine checks for a dead SCSI bus *
3939 ************************************************************************/
3940#define SET_SXP_BANK 0x0100
3941#define SCSI_PHASE_INVALID 0x87FF
3942static int
3943qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *ha, unsigned int bus)
3944{
3945 uint16_t config_reg, scsi_control;
3946 struct device_reg __iomem *reg = ha->iobase;
3947
3948 if (ha->bus_settings[bus].scsi_bus_dead) {
3949 WRT_REG_WORD(&reg->host_cmd, HC_PAUSE_RISC);
3950 config_reg = RD_REG_WORD(&reg->cfg_1);
3951 WRT_REG_WORD(&reg->cfg_1, SET_SXP_BANK);
3952 scsi_control = RD_REG_WORD(&reg->scsiControlPins);
3953 WRT_REG_WORD(&reg->cfg_1, config_reg);
3954 WRT_REG_WORD(&reg->host_cmd, HC_RELEASE_RISC);
3955
3956 if (scsi_control == SCSI_PHASE_INVALID) {
3957 ha->bus_settings[bus].scsi_bus_dead = 1;
3958#if 0
3959 CMD_RESULT(cp) = DID_NO_CONNECT << 16;
3960 CMD_HANDLE(cp) = INVALID_HANDLE;
3961 /* ha->actthreads--; */
3962
3963 (*(cp)->scsi_done)(cp);
3964#endif
3965 return 1; /* bus is dead */
3966 } else {
3967 ha->bus_settings[bus].scsi_bus_dead = 0;
3968 ha->bus_settings[bus].failed_reset_count = 0;
3969 }
3970 }
3971 return 0; /* bus is not dead */
3972}
3973
3974static void
3975qla1280_get_target_parameters(struct scsi_qla_host *ha,
3976 struct scsi_device *device)
3977{
3978 uint16_t mb[MAILBOX_REGISTER_COUNT];
3979 int bus, target, lun;
3980
3981 bus = device->channel;
3982 target = device->id;
3983 lun = device->lun;
3984
3985
3986 mb[0] = MBC_GET_TARGET_PARAMETERS;
3987 mb[1] = (uint16_t) (bus ? target | BIT_7 : target);
3988 mb[1] <<= 8;
3989 qla1280_mailbox_command(ha, BIT_6 | BIT_3 | BIT_2 | BIT_1 | BIT_0,
3990 &mb[0]);
3991
3992 printk(KERN_INFO "scsi(%li:%d:%d:%d):", ha->host_no, bus, target, lun);
3993
3994 if (mb[3] != 0) {
3995 printk(" Sync: period %d, offset %d",
3996 (mb[3] & 0xff), (mb[3] >> 8));
3997 if (mb[2] & BIT_13)
3998 printk(", Wide");
3999 if ((mb[2] & BIT_5) && ((mb[6] >> 8) & 0xff) >= 2)
4000 printk(", DT");
4001 } else
4002 printk(" Async");
4003
2dbb04c6 4004 if (device->simple_tags)
1da177e4
LT		 4005 printk(", Tagged queuing: depth %d", device->queue_depth);
4006 printk("\n");
4007}
4008
4009
4010#if DEBUG_QLA1280
4011static void
4012__qla1280_dump_buffer(char *b, int size)
4013{
4014 int cnt;
4015 u8 c;
4016
4017 printk(KERN_DEBUG " 0 1 2 3 4 5 6 7 8 9 Ah "
4018 "Bh Ch Dh Eh Fh\n");
4019 printk(KERN_DEBUG "---------------------------------------------"
4020 "------------------\n");
4021
4022 for (cnt = 0; cnt < size;) {
4023 c = *b++;
4024
4025 printk("0x%02x", c);
4026 cnt++;
4027 if (!(cnt % 16))
4028 printk("\n");
4029 else
4030 printk(" ");
4031 }
4032 if (cnt % 16)
4033 printk("\n");
4034}
4035
4036/**************************************************************************
4037 * ql1280_print_scsi_cmd
4038 *
4039 **************************************************************************/
4040static void
4041__qla1280_print_scsi_cmd(struct scsi_cmnd *cmd)
4042{
4043 struct scsi_qla_host *ha;
4044 struct Scsi_Host *host = CMD_HOST(cmd);
4045 struct srb *sp;
4046 /* struct scatterlist *sg; */
4047
4048 int i;
4049 ha = (struct scsi_qla_host *)host->hostdata;
4050
4051 sp = (struct srb *)CMD_SP(cmd);
4052 printk("SCSI Command @= 0x%p, Handle=0x%p\n", cmd, CMD_HANDLE(cmd));
4053 printk(" chan=%d, target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n",
4054 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd),
4055 CMD_CDBLEN(cmd));
4056 printk(" CDB = ");
4057 for (i = 0; i < cmd->cmd_len; i++) {
4058 printk("0x%02x ", cmd->cmnd[i]);
4059 }
5c1da582 4060 printk(" seg_cnt =%d\n", scsi_sg_count(cmd));
1da177e4 4061 printk(" request buffer=0x%p, request buffer len=0x%x\n",
5c1da582 4062 scsi_sglist(cmd), scsi_bufflen(cmd));
1da177e4
LT		 4063 /* if (cmd->use_sg)
4064 {
4065 sg = (struct scatterlist *) cmd->request_buffer;
4066 printk(" SG buffer: \n");
4067 qla1280_dump_buffer(1, (char *)sg, (cmd->use_sg*sizeof(struct scatterlist)));
4068 } */
4069 printk(" tag=%d, transfersize=0x%x \n",
4070 cmd->tag, cmd->transfersize);
12a44162 4071 printk(" Pid=%li, SP=0x%p\n", cmd->serial_number, CMD_SP(cmd));
1da177e4
LT		 4072 printk(" underflow size = 0x%x, direction=0x%x\n",
4073 cmd->underflow, cmd->sc_data_direction);
4074}
4075
4076/**************************************************************************
4077 * ql1280_dump_device
4078 *
4079 **************************************************************************/
4080static void
4081ql1280_dump_device(struct scsi_qla_host *ha)
4082{
4083
4084 struct scsi_cmnd *cp;
4085 struct srb *sp;
4086 int i;
4087
4088 printk(KERN_DEBUG "Outstanding Commands on controller:\n");
4089
4090 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
4091 if ((sp = ha->outstanding_cmds[i]) == NULL)
4092 continue;
4093 if ((cp = sp->cmd) == NULL)
4094 continue;
4095 qla1280_print_scsi_cmd(1, cp);
4096 }
4097}
4098#endif
4099
4100
4101enum tokens {
4102 TOKEN_NVRAM,
4103 TOKEN_SYNC,
4104 TOKEN_WIDE,
4105 TOKEN_PPR,
4106 TOKEN_VERBOSE,
4107 TOKEN_DEBUG,
4108};
4109
4110struct setup_tokens {
4111 char *token;
4112 int val;
4113};
4114
4115static struct setup_tokens setup_token[] __initdata =
4116{
4117 { "nvram", TOKEN_NVRAM },
4118 { "sync", TOKEN_SYNC },
4119 { "wide", TOKEN_WIDE },
4120 { "ppr", TOKEN_PPR },
4121 { "verbose", TOKEN_VERBOSE },
4122 { "debug", TOKEN_DEBUG },
4123};
4124
4125
4126/**************************************************************************
4127 * qla1280_setup
4128 *
4129 * Handle boot parameters. This really needs to be changed so one
4130 * can specify per adapter parameters.
4131 **************************************************************************/
4132static int __init
4133qla1280_setup(char *s)
4134{
4135 char *cp, *ptr;
4136 unsigned long val;
4137 int toke;
4138
4139 cp = s;
4140
4141 while (cp && (ptr = strchr(cp, ':'))) {
4142 ptr++;
4143 if (!strcmp(ptr, "yes")) {
4144 val = 0x10000;
4145 ptr += 3;
4146 } else if (!strcmp(ptr, "no")) {
4147 val = 0;
4148 ptr += 2;
4149 } else
4150 val = simple_strtoul(ptr, &ptr, 0);
4151
4152 switch ((toke = qla1280_get_token(cp))) {
4153 case TOKEN_NVRAM:
4154 if (!val)
4155 driver_setup.no_nvram = 1;
4156 break;
4157 case TOKEN_SYNC:
4158 if (!val)
4159 driver_setup.no_sync = 1;
4160 else if (val != 0x10000)
4161 driver_setup.sync_mask = val;
4162 break;
4163 case TOKEN_WIDE:
4164 if (!val)
4165 driver_setup.no_wide = 1;
4166 else if (val != 0x10000)
4167 driver_setup.wide_mask = val;
4168 break;
4169 case TOKEN_PPR:
4170 if (!val)
4171 driver_setup.no_ppr = 1;
4172 else if (val != 0x10000)
4173 driver_setup.ppr_mask = val;
4174 break;
4175 case TOKEN_VERBOSE:
4176 qla1280_verbose = val;
4177 break;
4178 default:
4179 printk(KERN_INFO "qla1280: unknown boot option %s\n",
4180 cp);
4181 }
4182
4183 cp = strchr(ptr, ';');
4184 if (cp)
4185 cp++;
4186 else {
4187 break;
4188 }
4189 }
4190 return 1;
4191}
4192
4193
f58f8313 4194static int __init
1da177e4
LT		 4195qla1280_get_token(char *str)
4196{
4197 char *sep;
4198 long ret = -1;
6391a113 4199 int i;
1da177e4
LT		 4200
4201 sep = strchr(str, ':');
4202
4203 if (sep) {
6391a113 4204 for (i = 0; i < ARRAY_SIZE(setup_token); i++) {
1da177e4
LT		 4205 if (!strncmp(setup_token[i].token, str, (sep - str))) {
4206 ret = setup_token[i].val;
4207 break;
4208 }
4209 }
4210 }
4211
4212 return ret;
4213}
4214
2dbb04c6 4215
1da177e4
LT		 4216static struct scsi_host_template qla1280_driver_template = {
4217 .module = THIS_MODULE,
4218 .proc_name = "qla1280",
4219 .name = "Qlogic ISP 1280/12160",
4220 .info = qla1280_info,
4221 .slave_configure = qla1280_slave_configure,
4222 .queuecommand = qla1280_queuecommand,
4223 .eh_abort_handler = qla1280_eh_abort,
4224 .eh_device_reset_handler= qla1280_eh_device_reset,
4225 .eh_bus_reset_handler = qla1280_eh_bus_reset,
4226 .eh_host_reset_handler = qla1280_eh_adapter_reset,
4227 .bios_param = qla1280_biosparam,
4228 .can_queue = 0xfffff,
4229 .this_id = -1,
4230 .sg_tablesize = SG_ALL,
4231 .cmd_per_lun = 1,
4232 .use_clustering = ENABLE_CLUSTERING,
4233};
2dbb04c6 4234
1da177e4
LT		 4235
4236static int __devinit
4237qla1280_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
4238{
4239 int devnum = id->driver_data;
4240 struct qla_boards *bdp = &ql1280_board_tbl[devnum];
4241 struct Scsi_Host *host;
4242 struct scsi_qla_host *ha;
4243 int error = -ENODEV;
4244
4245 /* Bypass all AMI SUBSYS VENDOR IDs */
4246 if (pdev->subsystem_vendor == PCI_VENDOR_ID_AMI) {
4247 printk(KERN_INFO
4248 "qla1280: Skipping AMI SubSys Vendor ID Chip\n");
4249 goto error;
4250 }
4251
4252 printk(KERN_INFO "qla1280: %s found on PCI bus %i, dev %i\n",
4253 bdp->name, pdev->bus->number, PCI_SLOT(pdev->devfn));
4254
4255 if (pci_enable_device(pdev)) {
4256 printk(KERN_WARNING
4257 "qla1280: Failed to enabled pci device, aborting.\n");
4258 goto error;
4259 }
4260
4261 pci_set_master(pdev);
4262
4263 error = -ENOMEM;
4264 host = scsi_host_alloc(&qla1280_driver_template, sizeof(*ha));
4265 if (!host) {
4266 printk(KERN_WARNING
4267 "qla1280: Failed to register host, aborting.\n");
4268 goto error_disable_device;
4269 }
4270
4271 ha = (struct scsi_qla_host *)host->hostdata;
4272 memset(ha, 0, sizeof(struct scsi_qla_host));
4273
4274 ha->pdev = pdev;
4275 ha->devnum = devnum; /* specifies microcode load address */
4276
4277#ifdef QLA_64BIT_PTR
b22c9d9b 4278 if (pci_set_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
910638ae 4279 if (pci_set_dma_mask(ha->pdev, DMA_32BIT_MASK)) {
1da177e4 4280 printk(KERN_WARNING "scsi(%li): Unable to set a "
2b55cac3 4281 "suitable DMA mask - aborting\n", ha->host_no);
1da177e4 4282 error = -ENODEV;
eb7a1698 4283 goto error_put_host;
1da177e4
LT		 4284 }
4285 } else
4286 dprintk(2, "scsi(%li): 64 Bit PCI Addressing Enabled\n",
4287 ha->host_no);
4288#else
910638ae 4289 if (pci_set_dma_mask(ha->pdev, DMA_32BIT_MASK)) {
1da177e4 4290 printk(KERN_WARNING "scsi(%li): Unable to set a "
2b55cac3 4291 "suitable DMA mask - aborting\n", ha->host_no);
1da177e4 4292 error = -ENODEV;
eb7a1698 4293 goto error_put_host;
1da177e4
LT		 4294 }
4295#endif
4296
4297 ha->request_ring = pci_alloc_consistent(ha->pdev,
2b55cac3 4298 ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)),
1da177e4
LT		 4299 &ha->request_dma);
4300 if (!ha->request_ring) {
4301 printk(KERN_INFO "qla1280: Failed to get request memory\n");
4302 goto error_put_host;
4303 }
4304
4305 ha->response_ring = pci_alloc_consistent(ha->pdev,
2b55cac3 4306 ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)),
1da177e4
LT		 4307 &ha->response_dma);
4308 if (!ha->response_ring) {
4309 printk(KERN_INFO "qla1280: Failed to get response memory\n");
4310 goto error_free_request_ring;
4311 }
4312
4313 ha->ports = bdp->numPorts;
4314
4315 ha->host = host;
4316 ha->host_no = host->host_no;
4317
4318 host->irq = pdev->irq;
4319 host->max_channel = bdp->numPorts - 1;
4320 host->max_lun = MAX_LUNS - 1;
4321 host->max_id = MAX_TARGETS;
4322 host->max_sectors = 1024;
4323 host->unique_id = host->host_no;
4324
1da177e4
LT		 4325 error = -ENODEV;
4326
4327#if MEMORY_MAPPED_IO
25729a7f 4328 ha->mmpbase = pci_ioremap_bar(ha->pdev, 1);
1da177e4
LT		 4329 if (!ha->mmpbase) {
4330 printk(KERN_INFO "qla1280: Unable to map I/O memory\n");
4331 goto error_free_response_ring;
4332 }
4333
4334 host->base = (unsigned long)ha->mmpbase;
4335 ha->iobase = (struct device_reg __iomem *)ha->mmpbase;
4336#else
4337 host->io_port = pci_resource_start(ha->pdev, 0);
4338 if (!request_region(host->io_port, 0xff, "qla1280")) {
4339 printk(KERN_INFO "qla1280: Failed to reserve i/o region "
4340 "0x%04lx-0x%04lx - already in use\n",
4341 host->io_port, host->io_port + 0xff);
4342 goto error_free_response_ring;
4343 }
4344
4345 ha->iobase = (struct device_reg *)host->io_port;
4346#endif
4347
4348 INIT_LIST_HEAD(&ha->done_q);
4349
4350 /* Disable ISP interrupts. */
4351 qla1280_disable_intrs(ha);
4352
1d6f359a 4353 if (request_irq(pdev->irq, qla1280_intr_handler, IRQF_SHARED,
1da177e4
LT		 4354 "qla1280", ha)) {
4355 printk("qla1280 : Failed to reserve interrupt %d already "
4356 "in use\n", pdev->irq);
4357 goto error_release_region;
4358 }
4359
4360 /* load the F/W, read paramaters, and init the H/W */
4361 if (qla1280_initialize_adapter(ha)) {
4362 printk(KERN_INFO "qla1x160: Failed to initialize adapter\n");
4363 goto error_free_irq;
4364 }
4365
4366 /* set our host ID (need to do something about our two IDs) */
4367 host->this_id = ha->bus_settings[0].id;
4368
4369 pci_set_drvdata(pdev, host);
4370
1da177e4
LT		 4371 error = scsi_add_host(host, &pdev->dev);
4372 if (error)
4373 goto error_disable_adapter;
4374 scsi_scan_host(host);
1da177e4
LT		 4375
4376 return 0;
4377
1da177e4 4378 error_disable_adapter:
8af50dcd 4379 qla1280_disable_intrs(ha);
1da177e4
LT		 4380 error_free_irq:
4381 free_irq(pdev->irq, ha);
4382 error_release_region:
4383#if MEMORY_MAPPED_IO
4384 iounmap(ha->mmpbase);
4385#else
4386 release_region(host->io_port, 0xff);
4387#endif
4388 error_free_response_ring:
4389 pci_free_consistent(ha->pdev,
2b55cac3 4390 ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)),
1da177e4
LT		 4391 ha->response_ring, ha->response_dma);
4392 error_free_request_ring:
4393 pci_free_consistent(ha->pdev,
2b55cac3 4394 ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)),
1da177e4
LT		 4395 ha->request_ring, ha->request_dma);
4396 error_put_host:
4397 scsi_host_put(host);
4398 error_disable_device:
4399 pci_disable_device(pdev);
4400 error:
4401 return error;
4402}
4403
4404
4405static void __devexit
4406qla1280_remove_one(struct pci_dev *pdev)
4407{
4408 struct Scsi_Host *host = pci_get_drvdata(pdev);
4409 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
4410
1da177e4 4411 scsi_remove_host(host);
1da177e4 4412
8af50dcd 4413 qla1280_disable_intrs(ha);
1da177e4
LT		 4414
4415 free_irq(pdev->irq, ha);
4416
4417#if MEMORY_MAPPED_IO
4418 iounmap(ha->mmpbase);
4419#else
4420 release_region(host->io_port, 0xff);
4421#endif
4422
4423 pci_free_consistent(ha->pdev,
4424 ((REQUEST_ENTRY_CNT + 1) * (sizeof(request_t))),
4425 ha->request_ring, ha->request_dma);
4426 pci_free_consistent(ha->pdev,
4427 ((RESPONSE_ENTRY_CNT + 1) * (sizeof(struct response))),
4428 ha->response_ring, ha->response_dma);
4429
4430 pci_disable_device(pdev);
4431
4432 scsi_host_put(host);
4433}
4434
1da177e4
LT		 4435static struct pci_driver qla1280_pci_driver = {
4436 .name = "qla1280",
4437 .id_table = qla1280_pci_tbl,
4438 .probe = qla1280_probe_one,
4439 .remove = __devexit_p(qla1280_remove_one),
4440};
4441
4442static int __init
4443qla1280_init(void)
4444{
4445 if (sizeof(struct srb) > sizeof(struct scsi_pointer)) {
4446 printk(KERN_WARNING
4447 "qla1280: struct srb too big, aborting\n");
4448 return -EINVAL;
4449 }
4450
4451#ifdef MODULE
4452 /*
4453 * If we are called as a module, the qla1280 pointer may not be null
4454 * and it would point to our bootup string, just like on the lilo
4455 * command line. IF not NULL, then process this config string with
4456 * qla1280_setup
4457 *
4458 * Boot time Options
4459 * To add options at boot time add a line to your lilo.conf file like:
4460 * append="qla1280=verbose,max_tags:{{255,255,255,255},{255,255,255,255}}"
4461 * which will result in the first four devices on the first two
4462 * controllers being set to a tagged queue depth of 32.
4463 */
4464 if (qla1280)
4465 qla1280_setup(qla1280);
4466#endif
4467
dcbccbde 4468 return pci_register_driver(&qla1280_pci_driver);
1da177e4
LT		 4469}
4470
4471static void __exit
4472qla1280_exit(void)
4473{
4474 pci_unregister_driver(&qla1280_pci_driver);
4475}
4476
4477module_init(qla1280_init);
4478module_exit(qla1280_exit);
4479
1da177e4
LT		 4480
4481MODULE_AUTHOR("Qlogic & Jes Sorensen");
4482MODULE_DESCRIPTION("Qlogic ISP SCSI (qla1x80/qla1x160) driver");
4483MODULE_LICENSE("GPL");
1bfa11db
JSR		 4484MODULE_FIRMWARE("qlogic/1040.bin");
4485MODULE_FIRMWARE("qlogic/1280.bin");
4486MODULE_FIRMWARE("qlogic/12160.bin");
1da177e4
LT		 4487MODULE_VERSION(QLA1280_VERSION);
4488
4489/*
4490 * Overrides for Emacs so that we almost follow Linus's tabbing style.
4491 * Emacs will notice this stuff at the end of the file and automatically
4492 * adjust the settings for this buffer only. This must remain at the end
4493 * of the file.
4494 * ---------------------------------------------------------------------------
4495 * Local variables:
4496 * c-basic-offset: 8
4497 * tab-width: 8
4498 * End:
4499 */
Linux 6.x block layer and io_uring tree(s)