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1 | /****************************************************************************** | |
2 | * QLOGIC LINUX SOFTWARE | |
3 | * | |
4 | * QLogic QLA1280 (Ultra2) and QLA12160 (Ultra3) SCSI driver | |
5 | * Copyright (C) 2000 Qlogic Corporation (www.qlogic.com) | |
6 | * Copyright (C) 2001-2004 Jes Sorensen, Wild Open Source Inc. | |
7 | * Copyright (C) 2003-2004 Christoph Hellwig | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify it | |
10 | * under the terms of the GNU General Public License as published by the | |
11 | * Free Software Foundation; either version 2, or (at your option) any | |
12 | * later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, but | |
15 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | * General Public License for more details. | |
18 | * | |
19 | ******************************************************************************/ | |
20 | #define QLA1280_VERSION "3.27.1" | |
21 | /***************************************************************************** | |
22 | Revision History: | |
23 | Rev 3.27.1, February 8, 2010, Michael Reed | |
24 | - Retain firmware image for error recovery. | |
25 | Rev 3.27, February 10, 2009, Michael Reed | |
26 | - General code cleanup. | |
27 | - Improve error recovery. | |
28 | Rev 3.26, January 16, 2006 Jes Sorensen | |
29 | - Ditch all < 2.6 support | |
30 | Rev 3.25.1, February 10, 2005 Christoph Hellwig | |
31 | - use pci_map_single to map non-S/G requests | |
32 | - remove qla1280_proc_info | |
33 | Rev 3.25, September 28, 2004, Christoph Hellwig | |
34 | - add support for ISP1020/1040 | |
35 | - don't include "scsi.h" anymore for 2.6.x | |
36 | Rev 3.24.4 June 7, 2004 Christoph Hellwig | |
37 | - restructure firmware loading, cleanup initialization code | |
38 | - prepare support for ISP1020/1040 chips | |
39 | Rev 3.24.3 January 19, 2004, Jes Sorensen | |
40 | - Handle PCI DMA mask settings correctly | |
41 | - Correct order of error handling in probe_one, free_irq should not | |
42 | be called if request_irq failed | |
43 | Rev 3.24.2 January 19, 2004, James Bottomley & Andrew Vasquez | |
44 | - Big endian fixes (James) | |
45 | - Remove bogus IOCB content on zero data transfer commands (Andrew) | |
46 | Rev 3.24.1 January 5, 2004, Jes Sorensen | |
47 | - Initialize completion queue to avoid OOPS on probe | |
48 | - Handle interrupts during mailbox testing | |
49 | Rev 3.24 November 17, 2003, Christoph Hellwig | |
50 | - use struct list_head for completion queue | |
51 | - avoid old Scsi_FOO typedefs | |
52 | - cleanup 2.4 compat glue a bit | |
53 | - use <scsi/scsi_*.h> headers on 2.6 instead of "scsi.h" | |
54 | - make initialization for memory mapped vs port I/O more similar | |
55 | - remove broken pci config space manipulation | |
56 | - kill more cruft | |
57 | - this is an almost perfect 2.6 scsi driver now! ;) | |
58 | Rev 3.23.39 December 17, 2003, Jes Sorensen | |
59 | - Delete completion queue from srb if mailbox command failed to | |
60 | to avoid qla1280_done completeting qla1280_error_action's | |
61 | obsolete context | |
62 | - Reduce arguments for qla1280_done | |
63 | Rev 3.23.38 October 18, 2003, Christoph Hellwig | |
64 | - Convert to new-style hotplugable driver for 2.6 | |
65 | - Fix missing scsi_unregister/scsi_host_put on HBA removal | |
66 | - Kill some more cruft | |
67 | Rev 3.23.37 October 1, 2003, Jes Sorensen | |
68 | - Make MMIO depend on CONFIG_X86_VISWS instead of yet another | |
69 | random CONFIG option | |
70 | - Clean up locking in probe path | |
71 | Rev 3.23.36 October 1, 2003, Christoph Hellwig | |
72 | - queuecommand only ever receives new commands - clear flags | |
73 | - Reintegrate lost fixes from Linux 2.5 | |
74 | Rev 3.23.35 August 14, 2003, Jes Sorensen | |
75 | - Build against 2.6 | |
76 | Rev 3.23.34 July 23, 2003, Jes Sorensen | |
77 | - Remove pointless TRUE/FALSE macros | |
78 | - Clean up vchan handling | |
79 | Rev 3.23.33 July 3, 2003, Jes Sorensen | |
80 | - Don't define register access macros before define determining MMIO. | |
81 | This just happened to work out on ia64 but not elsewhere. | |
82 | - Don't try and read from the card while it is in reset as | |
83 | it won't respond and causes an MCA | |
84 | Rev 3.23.32 June 23, 2003, Jes Sorensen | |
85 | - Basic support for boot time arguments | |
86 | Rev 3.23.31 June 8, 2003, Jes Sorensen | |
87 | - Reduce boot time messages | |
88 | Rev 3.23.30 June 6, 2003, Jes Sorensen | |
89 | - Do not enable sync/wide/ppr before it has been determined | |
90 | that the target device actually supports it | |
91 | - Enable DMA arbitration for multi channel controllers | |
92 | Rev 3.23.29 June 3, 2003, Jes Sorensen | |
93 | - Port to 2.5.69 | |
94 | Rev 3.23.28 June 3, 2003, Jes Sorensen | |
95 | - Eliminate duplicate marker commands on bus resets | |
96 | - Handle outstanding commands appropriately on bus/device resets | |
97 | Rev 3.23.27 May 28, 2003, Jes Sorensen | |
98 | - Remove bogus input queue code, let the Linux SCSI layer do the work | |
99 | - Clean up NVRAM handling, only read it once from the card | |
100 | - Add a number of missing default nvram parameters | |
101 | Rev 3.23.26 Beta May 28, 2003, Jes Sorensen | |
102 | - Use completion queue for mailbox commands instead of busy wait | |
103 | Rev 3.23.25 Beta May 27, 2003, James Bottomley | |
104 | - Migrate to use new error handling code | |
105 | Rev 3.23.24 Beta May 21, 2003, James Bottomley | |
106 | - Big endian support | |
107 | - Cleanup data direction code | |
108 | Rev 3.23.23 Beta May 12, 2003, Jes Sorensen | |
109 | - Switch to using MMIO instead of PIO | |
110 | Rev 3.23.22 Beta April 15, 2003, Jes Sorensen | |
111 | - Fix PCI parity problem with 12160 during reset. | |
112 | Rev 3.23.21 Beta April 14, 2003, Jes Sorensen | |
113 | - Use pci_map_page()/pci_unmap_page() instead of map_single version. | |
114 | Rev 3.23.20 Beta April 9, 2003, Jes Sorensen | |
115 | - Remove < 2.4.x support | |
116 | - Introduce HOST_LOCK to make the spin lock changes portable. | |
117 | - Remove a bunch of idiotic and unnecessary typedef's | |
118 | - Kill all leftovers of target-mode support which never worked anyway | |
119 | Rev 3.23.19 Beta April 11, 2002, Linus Torvalds | |
120 | - Do qla1280_pci_config() before calling request_irq() and | |
121 | request_region() | |
122 | - Use pci_dma_hi32() to handle upper word of DMA addresses instead | |
123 | of large shifts | |
124 | - Hand correct arguments to free_irq() in case of failure | |
125 | Rev 3.23.18 Beta April 11, 2002, Jes Sorensen | |
126 | - Run source through Lindent and clean up the output | |
127 | Rev 3.23.17 Beta April 11, 2002, Jes Sorensen | |
128 | - Update SCSI firmware to qla1280 v8.15.00 and qla12160 v10.04.32 | |
129 | Rev 3.23.16 Beta March 19, 2002, Jes Sorensen | |
130 | - Rely on mailbox commands generating interrupts - do not | |
131 | run qla1280_isr() from ql1280_mailbox_command() | |
132 | - Remove device_reg_t | |
133 | - Integrate ql12160_set_target_parameters() with 1280 version | |
134 | - Make qla1280_setup() non static | |
135 | - Do not call qla1280_check_for_dead_scsi_bus() on every I/O request | |
136 | sent to the card - this command pauses the firmware!!! | |
137 | Rev 3.23.15 Beta March 19, 2002, Jes Sorensen | |
138 | - Clean up qla1280.h - remove obsolete QL_DEBUG_LEVEL_x definitions | |
139 | - Remove a pile of pointless and confusing (srb_t **) and | |
140 | (scsi_lu_t *) typecasts | |
141 | - Explicit mark that we do not use the new error handling (for now) | |
142 | - Remove scsi_qla_host_t and use 'struct' instead | |
143 | - Remove in_abort, watchdog_enabled, dpc, dpc_sched, bios_enabled, | |
144 | pci_64bit_slot flags which weren't used for anything anyway | |
145 | - Grab host->host_lock while calling qla1280_isr() from abort() | |
146 | - Use spin_lock()/spin_unlock() in qla1280_intr_handler() - we | |
147 | do not need to save/restore flags in the interrupt handler | |
148 | - Enable interrupts early (before any mailbox access) in preparation | |
149 | for cleaning up the mailbox handling | |
150 | Rev 3.23.14 Beta March 14, 2002, Jes Sorensen | |
151 | - Further cleanups. Remove all trace of QL_DEBUG_LEVEL_x and replace | |
152 | it with proper use of dprintk(). | |
153 | - Make qla1280_print_scsi_cmd() and qla1280_dump_buffer() both take | |
154 | a debug level argument to determine if data is to be printed | |
155 | - Add KERN_* info to printk() | |
156 | Rev 3.23.13 Beta March 14, 2002, Jes Sorensen | |
157 | - Significant cosmetic cleanups | |
158 | - Change debug code to use dprintk() and remove #if mess | |
159 | Rev 3.23.12 Beta March 13, 2002, Jes Sorensen | |
160 | - More cosmetic cleanups, fix places treating return as function | |
161 | - use cpu_relax() in qla1280_debounce_register() | |
162 | Rev 3.23.11 Beta March 13, 2002, Jes Sorensen | |
163 | - Make it compile under 2.5.5 | |
164 | Rev 3.23.10 Beta October 1, 2001, Jes Sorensen | |
165 | - Do no typecast short * to long * in QL1280BoardTbl, this | |
166 | broke miserably on big endian boxes | |
167 | Rev 3.23.9 Beta September 30, 2001, Jes Sorensen | |
168 | - Remove pre 2.2 hack for checking for reentrance in interrupt handler | |
169 | - Make data types used to receive from SCSI_{BUS,TCN,LUN}_32 | |
170 | unsigned int to match the types from struct scsi_cmnd | |
171 | Rev 3.23.8 Beta September 29, 2001, Jes Sorensen | |
172 | - Remove bogus timer_t typedef from qla1280.h | |
173 | - Remove obsolete pre 2.2 PCI setup code, use proper #define's | |
174 | for PCI_ values, call pci_set_master() | |
175 | - Fix memleak of qla1280_buffer on module unload | |
176 | - Only compile module parsing code #ifdef MODULE - should be | |
177 | changed to use individual MODULE_PARM's later | |
178 | - Remove dummy_buffer that was never modified nor printed | |
179 | - ENTER()/LEAVE() are noops unless QL_DEBUG_LEVEL_3, hence remove | |
180 | #ifdef QL_DEBUG_LEVEL_3/#endif around ENTER()/LEAVE() calls | |
181 | - Remove \r from print statements, this is Linux, not DOS | |
182 | - Remove obsolete QLA1280_{SCSILU,INTR,RING}_{LOCK,UNLOCK} | |
183 | dummy macros | |
184 | - Remove C++ compile hack in header file as Linux driver are not | |
185 | supposed to be compiled as C++ | |
186 | - Kill MS_64BITS macro as it makes the code more readable | |
187 | - Remove unnecessary flags.in_interrupts bit | |
188 | Rev 3.23.7 Beta August 20, 2001, Jes Sorensen | |
189 | - Dont' check for set flags on q->q_flag one by one in qla1280_next() | |
190 | - Check whether the interrupt was generated by the QLA1280 before | |
191 | doing any processing | |
192 | - qla1280_status_entry(): Only zero out part of sense_buffer that | |
193 | is not being copied into | |
194 | - Remove more superflouous typecasts | |
195 | - qla1280_32bit_start_scsi() replace home-brew memcpy() with memcpy() | |
196 | Rev 3.23.6 Beta August 20, 2001, Tony Luck, Intel | |
197 | - Don't walk the entire list in qla1280_putq_t() just to directly | |
198 | grab the pointer to the last element afterwards | |
199 | Rev 3.23.5 Beta August 9, 2001, Jes Sorensen | |
200 | - Don't use IRQF_DISABLED, it's use is deprecated for this kinda driver | |
201 | Rev 3.23.4 Beta August 8, 2001, Jes Sorensen | |
202 | - Set dev->max_sectors to 1024 | |
203 | Rev 3.23.3 Beta August 6, 2001, Jes Sorensen | |
204 | - Provide compat macros for pci_enable_device(), pci_find_subsys() | |
205 | and scsi_set_pci_device() | |
206 | - Call scsi_set_pci_device() for all devices | |
207 | - Reduce size of kernel version dependent device probe code | |
208 | - Move duplicate probe/init code to separate function | |
209 | - Handle error if qla1280_mem_alloc() fails | |
210 | - Kill OFFSET() macro and use Linux's PCI definitions instead | |
211 | - Kill private structure defining PCI config space (struct config_reg) | |
212 | - Only allocate I/O port region if not in MMIO mode | |
213 | - Remove duplicate (unused) sanity check of sife of srb_t | |
214 | Rev 3.23.2 Beta August 6, 2001, Jes Sorensen | |
215 | - Change home-brew memset() implementations to use memset() | |
216 | - Remove all references to COMTRACE() - accessing a PC's COM2 serial | |
217 | port directly is not legal under Linux. | |
218 | Rev 3.23.1 Beta April 24, 2001, Jes Sorensen | |
219 | - Remove pre 2.2 kernel support | |
220 | - clean up 64 bit DMA setting to use 2.4 API (provide backwards compat) | |
221 | - Fix MMIO access to use readl/writel instead of directly | |
222 | dereferencing pointers | |
223 | - Nuke MSDOS debugging code | |
224 | - Change true/false data types to int from uint8_t | |
225 | - Use int for counters instead of uint8_t etc. | |
226 | - Clean up size & byte order conversion macro usage | |
227 | Rev 3.23 Beta January 11, 2001 BN Qlogic | |
228 | - Added check of device_id when handling non | |
229 | QLA12160s during detect(). | |
230 | Rev 3.22 Beta January 5, 2001 BN Qlogic | |
231 | - Changed queue_task() to schedule_task() | |
232 | for kernels 2.4.0 and higher. | |
233 | Note: 2.4.0-testxx kernels released prior to | |
234 | the actual 2.4.0 kernel release on January 2001 | |
235 | will get compile/link errors with schedule_task(). | |
236 | Please update your kernel to released 2.4.0 level, | |
237 | or comment lines in this file flagged with 3.22 | |
238 | to resolve compile/link error of schedule_task(). | |
239 | - Added -DCONFIG_SMP in addition to -D__SMP__ | |
240 | in Makefile for 2.4.0 builds of driver as module. | |
241 | Rev 3.21 Beta January 4, 2001 BN Qlogic | |
242 | - Changed criteria of 64/32 Bit mode of HBA | |
243 | operation according to BITS_PER_LONG rather | |
244 | than HBA's NVRAM setting of >4Gig memory bit; | |
245 | so that the HBA auto-configures without the need | |
246 | to setup each system individually. | |
247 | Rev 3.20 Beta December 5, 2000 BN Qlogic | |
248 | - Added priority handling to IA-64 onboard SCSI | |
249 | ISP12160 chip for kernels greater than 2.3.18. | |
250 | - Added irqrestore for qla1280_intr_handler. | |
251 | - Enabled /proc/scsi/qla1280 interface. | |
252 | - Clear /proc/scsi/qla1280 counters in detect(). | |
253 | Rev 3.19 Beta October 13, 2000 BN Qlogic | |
254 | - Declare driver_template for new kernel | |
255 | (2.4.0 and greater) scsi initialization scheme. | |
256 | - Update /proc/scsi entry for 2.3.18 kernels and | |
257 | above as qla1280 | |
258 | Rev 3.18 Beta October 10, 2000 BN Qlogic | |
259 | - Changed scan order of adapters to map | |
260 | the QLA12160 followed by the QLA1280. | |
261 | Rev 3.17 Beta September 18, 2000 BN Qlogic | |
262 | - Removed warnings for 32 bit 2.4.x compiles | |
263 | - Corrected declared size for request and response | |
264 | DMA addresses that are kept in each ha | |
265 | Rev. 3.16 Beta August 25, 2000 BN Qlogic | |
266 | - Corrected 64 bit addressing issue on IA-64 | |
267 | where the upper 32 bits were not properly | |
268 | passed to the RISC engine. | |
269 | Rev. 3.15 Beta August 22, 2000 BN Qlogic | |
270 | - Modified qla1280_setup_chip to properly load | |
271 | ISP firmware for greater that 4 Gig memory on IA-64 | |
272 | Rev. 3.14 Beta August 16, 2000 BN Qlogic | |
273 | - Added setting of dma_mask to full 64 bit | |
274 | if flags.enable_64bit_addressing is set in NVRAM | |
275 | Rev. 3.13 Beta August 16, 2000 BN Qlogic | |
276 | - Use new PCI DMA mapping APIs for 2.4.x kernel | |
277 | Rev. 3.12 July 18, 2000 Redhat & BN Qlogic | |
278 | - Added check of pci_enable_device to detect() for 2.3.x | |
279 | - Use pci_resource_start() instead of | |
280 | pdev->resource[0].start in detect() for 2.3.x | |
281 | - Updated driver version | |
282 | Rev. 3.11 July 14, 2000 BN Qlogic | |
283 | - Updated SCSI Firmware to following versions: | |
284 | qla1x80: 8.13.08 | |
285 | qla1x160: 10.04.08 | |
286 | - Updated driver version to 3.11 | |
287 | Rev. 3.10 June 23, 2000 BN Qlogic | |
288 | - Added filtering of AMI SubSys Vendor ID devices | |
289 | Rev. 3.9 | |
290 | - DEBUG_QLA1280 undefined and new version BN Qlogic | |
291 | Rev. 3.08b May 9, 2000 MD Dell | |
292 | - Added logic to check against AMI subsystem vendor ID | |
293 | Rev. 3.08 May 4, 2000 DG Qlogic | |
294 | - Added logic to check for PCI subsystem ID. | |
295 | Rev. 3.07 Apr 24, 2000 DG & BN Qlogic | |
296 | - Updated SCSI Firmware to following versions: | |
297 | qla12160: 10.01.19 | |
298 | qla1280: 8.09.00 | |
299 | Rev. 3.06 Apr 12, 2000 DG & BN Qlogic | |
300 | - Internal revision; not released | |
301 | Rev. 3.05 Mar 28, 2000 DG & BN Qlogic | |
302 | - Edit correction for virt_to_bus and PROC. | |
303 | Rev. 3.04 Mar 28, 2000 DG & BN Qlogic | |
304 | - Merge changes from ia64 port. | |
305 | Rev. 3.03 Mar 28, 2000 BN Qlogic | |
306 | - Increase version to reflect new code drop with compile fix | |
307 | of issue with inclusion of linux/spinlock for 2.3 kernels | |
308 | Rev. 3.02 Mar 15, 2000 BN Qlogic | |
309 | - Merge qla1280_proc_info from 2.10 code base | |
310 | Rev. 3.01 Feb 10, 2000 BN Qlogic | |
311 | - Corrected code to compile on a 2.2.x kernel. | |
312 | Rev. 3.00 Jan 17, 2000 DG Qlogic | |
313 | - Added 64-bit support. | |
314 | Rev. 2.07 Nov 9, 1999 DG Qlogic | |
315 | - Added new routine to set target parameters for ISP12160. | |
316 | Rev. 2.06 Sept 10, 1999 DG Qlogic | |
317 | - Added support for ISP12160 Ultra 3 chip. | |
318 | Rev. 2.03 August 3, 1999 Fred Lewis, Intel DuPont | |
319 | - Modified code to remove errors generated when compiling with | |
320 | Cygnus IA64 Compiler. | |
321 | - Changed conversion of pointers to unsigned longs instead of integers. | |
322 | - Changed type of I/O port variables from uint32_t to unsigned long. | |
323 | - Modified OFFSET macro to work with 64-bit as well as 32-bit. | |
324 | - Changed sprintf and printk format specifiers for pointers to %p. | |
325 | - Changed some int to long type casts where needed in sprintf & printk. | |
326 | - Added l modifiers to sprintf and printk format specifiers for longs. | |
327 | - Removed unused local variables. | |
328 | Rev. 1.20 June 8, 1999 DG, Qlogic | |
329 | Changes to support RedHat release 6.0 (kernel 2.2.5). | |
330 | - Added SCSI exclusive access lock (io_request_lock) when accessing | |
331 | the adapter. | |
332 | - Added changes for the new LINUX interface template. Some new error | |
333 | handling routines have been added to the template, but for now we | |
334 | will use the old ones. | |
335 | - Initial Beta Release. | |
336 | *****************************************************************************/ | |
337 | ||
338 | ||
339 | #include <linux/module.h> | |
340 | ||
341 | #include <linux/types.h> | |
342 | #include <linux/string.h> | |
343 | #include <linux/errno.h> | |
344 | #include <linux/kernel.h> | |
345 | #include <linux/ioport.h> | |
346 | #include <linux/delay.h> | |
347 | #include <linux/timer.h> | |
348 | #include <linux/pci.h> | |
349 | #include <linux/proc_fs.h> | |
350 | #include <linux/stat.h> | |
351 | #include <linux/pci_ids.h> | |
352 | #include <linux/interrupt.h> | |
353 | #include <linux/init.h> | |
354 | #include <linux/dma-mapping.h> | |
355 | #include <linux/firmware.h> | |
356 | ||
357 | #include <asm/io.h> | |
358 | #include <asm/irq.h> | |
359 | #include <asm/byteorder.h> | |
360 | #include <asm/processor.h> | |
361 | #include <asm/types.h> | |
362 | ||
363 | #include <scsi/scsi.h> | |
364 | #include <scsi/scsi_cmnd.h> | |
365 | #include <scsi/scsi_device.h> | |
366 | #include <scsi/scsi_host.h> | |
367 | #include <scsi/scsi_tcq.h> | |
368 | ||
369 | #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) | |
370 | #include <asm/sn/io.h> | |
371 | #endif | |
372 | ||
373 | ||
374 | /* | |
375 | * Compile time Options: | |
376 | * 0 - Disable and 1 - Enable | |
377 | */ | |
378 | #define DEBUG_QLA1280_INTR 0 | |
379 | #define DEBUG_PRINT_NVRAM 0 | |
380 | #define DEBUG_QLA1280 0 | |
381 | ||
382 | #define MEMORY_MAPPED_IO 1 | |
383 | ||
384 | #include "qla1280.h" | |
385 | ||
386 | #ifndef BITS_PER_LONG | |
387 | #error "BITS_PER_LONG not defined!" | |
388 | #endif | |
389 | #if (BITS_PER_LONG == 64) || defined CONFIG_HIGHMEM | |
390 | #define QLA_64BIT_PTR 1 | |
391 | #endif | |
392 | ||
393 | #ifdef QLA_64BIT_PTR | |
394 | #define pci_dma_hi32(a) ((a >> 16) >> 16) | |
395 | #else | |
396 | #define pci_dma_hi32(a) 0 | |
397 | #endif | |
398 | #define pci_dma_lo32(a) (a & 0xffffffff) | |
399 | ||
400 | #define NVRAM_DELAY() udelay(500) /* 2 microseconds */ | |
401 | ||
402 | #if defined(__ia64__) && !defined(ia64_platform_is) | |
403 | #define ia64_platform_is(foo) (!strcmp(x, platform_name)) | |
404 | #endif | |
405 | ||
406 | ||
407 | #define IS_ISP1040(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020) | |
408 | #define IS_ISP1x40(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020 || \ | |
409 | ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1240) | |
410 | #define IS_ISP1x160(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP10160 || \ | |
411 | ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP12160) | |
412 | ||
413 | ||
414 | static int qla1280_probe_one(struct pci_dev *, const struct pci_device_id *); | |
415 | static void qla1280_remove_one(struct pci_dev *); | |
416 | ||
417 | /* | |
418 | * QLogic Driver Support Function Prototypes. | |
419 | */ | |
420 | static void qla1280_done(struct scsi_qla_host *); | |
421 | static int qla1280_get_token(char *); | |
422 | static int qla1280_setup(char *s) __init; | |
423 | ||
424 | /* | |
425 | * QLogic ISP1280 Hardware Support Function Prototypes. | |
426 | */ | |
427 | static int qla1280_load_firmware(struct scsi_qla_host *); | |
428 | static int qla1280_init_rings(struct scsi_qla_host *); | |
429 | static int qla1280_nvram_config(struct scsi_qla_host *); | |
430 | static int qla1280_mailbox_command(struct scsi_qla_host *, | |
431 | uint8_t, uint16_t *); | |
432 | static int qla1280_bus_reset(struct scsi_qla_host *, int); | |
433 | static int qla1280_device_reset(struct scsi_qla_host *, int, int); | |
434 | static int qla1280_abort_command(struct scsi_qla_host *, struct srb *, int); | |
435 | static int qla1280_abort_isp(struct scsi_qla_host *); | |
436 | #ifdef QLA_64BIT_PTR | |
437 | static int qla1280_64bit_start_scsi(struct scsi_qla_host *, struct srb *); | |
438 | #else | |
439 | static int qla1280_32bit_start_scsi(struct scsi_qla_host *, struct srb *); | |
440 | #endif | |
441 | static void qla1280_nv_write(struct scsi_qla_host *, uint16_t); | |
442 | static void qla1280_poll(struct scsi_qla_host *); | |
443 | static void qla1280_reset_adapter(struct scsi_qla_host *); | |
444 | static void qla1280_marker(struct scsi_qla_host *, int, int, int, u8); | |
445 | static void qla1280_isp_cmd(struct scsi_qla_host *); | |
446 | static void qla1280_isr(struct scsi_qla_host *, struct list_head *); | |
447 | static void qla1280_rst_aen(struct scsi_qla_host *); | |
448 | static void qla1280_status_entry(struct scsi_qla_host *, struct response *, | |
449 | struct list_head *); | |
450 | static void qla1280_error_entry(struct scsi_qla_host *, struct response *, | |
451 | struct list_head *); | |
452 | static uint16_t qla1280_get_nvram_word(struct scsi_qla_host *, uint32_t); | |
453 | static uint16_t qla1280_nvram_request(struct scsi_qla_host *, uint32_t); | |
454 | static uint16_t qla1280_debounce_register(volatile uint16_t __iomem *); | |
455 | static request_t *qla1280_req_pkt(struct scsi_qla_host *); | |
456 | static int qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *, | |
457 | unsigned int); | |
458 | static void qla1280_get_target_parameters(struct scsi_qla_host *, | |
459 | struct scsi_device *); | |
460 | static int qla1280_set_target_parameters(struct scsi_qla_host *, int, int); | |
461 | ||
462 | ||
463 | static struct qla_driver_setup driver_setup; | |
464 | ||
465 | /* | |
466 | * convert scsi data direction to request_t control flags | |
467 | */ | |
468 | static inline uint16_t | |
469 | qla1280_data_direction(struct scsi_cmnd *cmnd) | |
470 | { | |
471 | switch(cmnd->sc_data_direction) { | |
472 | case DMA_FROM_DEVICE: | |
473 | return BIT_5; | |
474 | case DMA_TO_DEVICE: | |
475 | return BIT_6; | |
476 | case DMA_BIDIRECTIONAL: | |
477 | return BIT_5 | BIT_6; | |
478 | /* | |
479 | * We could BUG() on default here if one of the four cases aren't | |
480 | * met, but then again if we receive something like that from the | |
481 | * SCSI layer we have more serious problems. This shuts up GCC. | |
482 | */ | |
483 | case DMA_NONE: | |
484 | default: | |
485 | return 0; | |
486 | } | |
487 | } | |
488 | ||
489 | #if DEBUG_QLA1280 | |
490 | static void __qla1280_print_scsi_cmd(struct scsi_cmnd * cmd); | |
491 | static void __qla1280_dump_buffer(char *, int); | |
492 | #endif | |
493 | ||
494 | ||
495 | /* | |
496 | * insmod needs to find the variable and make it point to something | |
497 | */ | |
498 | #ifdef MODULE | |
499 | static char *qla1280; | |
500 | ||
501 | /* insmod qla1280 options=verbose" */ | |
502 | module_param(qla1280, charp, 0); | |
503 | #else | |
504 | __setup("qla1280=", qla1280_setup); | |
505 | #endif | |
506 | ||
507 | ||
508 | /* | |
509 | * We use the scsi_pointer structure that's included with each scsi_command | |
510 | * to overlay our struct srb over it. qla1280_init() checks that a srb is not | |
511 | * bigger than a scsi_pointer. | |
512 | */ | |
513 | ||
514 | #define CMD_SP(Cmnd) &Cmnd->SCp | |
515 | #define CMD_CDBLEN(Cmnd) Cmnd->cmd_len | |
516 | #define CMD_CDBP(Cmnd) Cmnd->cmnd | |
517 | #define CMD_SNSP(Cmnd) Cmnd->sense_buffer | |
518 | #define CMD_SNSLEN(Cmnd) SCSI_SENSE_BUFFERSIZE | |
519 | #define CMD_RESULT(Cmnd) Cmnd->result | |
520 | #define CMD_HANDLE(Cmnd) Cmnd->host_scribble | |
521 | #define CMD_REQUEST(Cmnd) Cmnd->request->cmd | |
522 | ||
523 | #define CMD_HOST(Cmnd) Cmnd->device->host | |
524 | #define SCSI_BUS_32(Cmnd) Cmnd->device->channel | |
525 | #define SCSI_TCN_32(Cmnd) Cmnd->device->id | |
526 | #define SCSI_LUN_32(Cmnd) Cmnd->device->lun | |
527 | ||
528 | ||
529 | /*****************************************/ | |
530 | /* ISP Boards supported by this driver */ | |
531 | /*****************************************/ | |
532 | ||
533 | struct qla_boards { | |
534 | char *name; /* Board ID String */ | |
535 | int numPorts; /* Number of SCSI ports */ | |
536 | int fw_index; /* index into qla1280_fw_tbl for firmware */ | |
537 | }; | |
538 | ||
539 | /* NOTE: the last argument in each entry is used to index ql1280_board_tbl */ | |
540 | static struct pci_device_id qla1280_pci_tbl[] = { | |
541 | {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP12160, | |
542 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
543 | {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1020, | |
544 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1}, | |
545 | {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1080, | |
546 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2}, | |
547 | {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1240, | |
548 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3}, | |
549 | {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1280, | |
550 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4}, | |
551 | {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP10160, | |
552 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5}, | |
553 | {0,} | |
554 | }; | |
555 | MODULE_DEVICE_TABLE(pci, qla1280_pci_tbl); | |
556 | ||
557 | DEFINE_MUTEX(qla1280_firmware_mutex); | |
558 | ||
559 | struct qla_fw { | |
560 | char *fwname; | |
561 | const struct firmware *fw; | |
562 | }; | |
563 | ||
564 | #define QL_NUM_FW_IMAGES 3 | |
565 | ||
566 | struct qla_fw qla1280_fw_tbl[QL_NUM_FW_IMAGES] = { | |
567 | {"qlogic/1040.bin", NULL}, /* image 0 */ | |
568 | {"qlogic/1280.bin", NULL}, /* image 1 */ | |
569 | {"qlogic/12160.bin", NULL}, /* image 2 */ | |
570 | }; | |
571 | ||
572 | /* NOTE: Order of boards in this table must match order in qla1280_pci_tbl */ | |
573 | static struct qla_boards ql1280_board_tbl[] = { | |
574 | {.name = "QLA12160", .numPorts = 2, .fw_index = 2}, | |
575 | {.name = "QLA1040" , .numPorts = 1, .fw_index = 0}, | |
576 | {.name = "QLA1080" , .numPorts = 1, .fw_index = 1}, | |
577 | {.name = "QLA1240" , .numPorts = 2, .fw_index = 1}, | |
578 | {.name = "QLA1280" , .numPorts = 2, .fw_index = 1}, | |
579 | {.name = "QLA10160", .numPorts = 1, .fw_index = 2}, | |
580 | {.name = " ", .numPorts = 0, .fw_index = -1}, | |
581 | }; | |
582 | ||
583 | static int qla1280_verbose = 1; | |
584 | ||
585 | #if DEBUG_QLA1280 | |
586 | static int ql_debug_level = 1; | |
587 | #define dprintk(level, format, a...) \ | |
588 | do { if (ql_debug_level >= level) printk(KERN_ERR format, ##a); } while(0) | |
589 | #define qla1280_dump_buffer(level, buf, size) \ | |
590 | if (ql_debug_level >= level) __qla1280_dump_buffer(buf, size) | |
591 | #define qla1280_print_scsi_cmd(level, cmd) \ | |
592 | if (ql_debug_level >= level) __qla1280_print_scsi_cmd(cmd) | |
593 | #else | |
594 | #define ql_debug_level 0 | |
595 | #define dprintk(level, format, a...) do{}while(0) | |
596 | #define qla1280_dump_buffer(a, b, c) do{}while(0) | |
597 | #define qla1280_print_scsi_cmd(a, b) do{}while(0) | |
598 | #endif | |
599 | ||
600 | #define ENTER(x) dprintk(3, "qla1280 : Entering %s()\n", x); | |
601 | #define LEAVE(x) dprintk(3, "qla1280 : Leaving %s()\n", x); | |
602 | #define ENTER_INTR(x) dprintk(4, "qla1280 : Entering %s()\n", x); | |
603 | #define LEAVE_INTR(x) dprintk(4, "qla1280 : Leaving %s()\n", x); | |
604 | ||
605 | ||
606 | static int qla1280_read_nvram(struct scsi_qla_host *ha) | |
607 | { | |
608 | uint16_t *wptr; | |
609 | uint8_t chksum; | |
610 | int cnt, i; | |
611 | struct nvram *nv; | |
612 | ||
613 | ENTER("qla1280_read_nvram"); | |
614 | ||
615 | if (driver_setup.no_nvram) | |
616 | return 1; | |
617 | ||
618 | printk(KERN_INFO "scsi(%ld): Reading NVRAM\n", ha->host_no); | |
619 | ||
620 | wptr = (uint16_t *)&ha->nvram; | |
621 | nv = &ha->nvram; | |
622 | chksum = 0; | |
623 | for (cnt = 0; cnt < 3; cnt++) { | |
624 | *wptr = qla1280_get_nvram_word(ha, cnt); | |
625 | chksum += *wptr & 0xff; | |
626 | chksum += (*wptr >> 8) & 0xff; | |
627 | wptr++; | |
628 | } | |
629 | ||
630 | if (nv->id0 != 'I' || nv->id1 != 'S' || | |
631 | nv->id2 != 'P' || nv->id3 != ' ' || nv->version < 1) { | |
632 | dprintk(2, "Invalid nvram ID or version!\n"); | |
633 | chksum = 1; | |
634 | } else { | |
635 | for (; cnt < sizeof(struct nvram); cnt++) { | |
636 | *wptr = qla1280_get_nvram_word(ha, cnt); | |
637 | chksum += *wptr & 0xff; | |
638 | chksum += (*wptr >> 8) & 0xff; | |
639 | wptr++; | |
640 | } | |
641 | } | |
642 | ||
643 | dprintk(3, "qla1280_read_nvram: NVRAM Magic ID= %c %c %c %02x" | |
644 | " version %i\n", nv->id0, nv->id1, nv->id2, nv->id3, | |
645 | nv->version); | |
646 | ||
647 | ||
648 | if (chksum) { | |
649 | if (!driver_setup.no_nvram) | |
650 | printk(KERN_WARNING "scsi(%ld): Unable to identify or " | |
651 | "validate NVRAM checksum, using default " | |
652 | "settings\n", ha->host_no); | |
653 | ha->nvram_valid = 0; | |
654 | } else | |
655 | ha->nvram_valid = 1; | |
656 | ||
657 | /* The firmware interface is, um, interesting, in that the | |
658 | * actual firmware image on the chip is little endian, thus, | |
659 | * the process of taking that image to the CPU would end up | |
660 | * little endian. However, the firmware interface requires it | |
661 | * to be read a word (two bytes) at a time. | |
662 | * | |
663 | * The net result of this would be that the word (and | |
664 | * doubleword) quantites in the firmware would be correct, but | |
665 | * the bytes would be pairwise reversed. Since most of the | |
666 | * firmware quantites are, in fact, bytes, we do an extra | |
667 | * le16_to_cpu() in the firmware read routine. | |
668 | * | |
669 | * The upshot of all this is that the bytes in the firmware | |
670 | * are in the correct places, but the 16 and 32 bit quantites | |
671 | * are still in little endian format. We fix that up below by | |
672 | * doing extra reverses on them */ | |
673 | nv->isp_parameter = cpu_to_le16(nv->isp_parameter); | |
674 | nv->firmware_feature.w = cpu_to_le16(nv->firmware_feature.w); | |
675 | for(i = 0; i < MAX_BUSES; i++) { | |
676 | nv->bus[i].selection_timeout = cpu_to_le16(nv->bus[i].selection_timeout); | |
677 | nv->bus[i].max_queue_depth = cpu_to_le16(nv->bus[i].max_queue_depth); | |
678 | } | |
679 | dprintk(1, "qla1280_read_nvram: Completed Reading NVRAM\n"); | |
680 | LEAVE("qla1280_read_nvram"); | |
681 | ||
682 | return chksum; | |
683 | } | |
684 | ||
685 | /************************************************************************** | |
686 | * qla1280_info | |
687 | * Return a string describing the driver. | |
688 | **************************************************************************/ | |
689 | static const char * | |
690 | qla1280_info(struct Scsi_Host *host) | |
691 | { | |
692 | static char qla1280_scsi_name_buffer[125]; | |
693 | char *bp; | |
694 | struct scsi_qla_host *ha; | |
695 | struct qla_boards *bdp; | |
696 | ||
697 | bp = &qla1280_scsi_name_buffer[0]; | |
698 | ha = (struct scsi_qla_host *)host->hostdata; | |
699 | bdp = &ql1280_board_tbl[ha->devnum]; | |
700 | memset(bp, 0, sizeof(qla1280_scsi_name_buffer)); | |
701 | ||
702 | sprintf (bp, | |
703 | "QLogic %s PCI to SCSI Host Adapter\n" | |
704 | " Firmware version: %2d.%02d.%02d, Driver version %s", | |
705 | &bdp->name[0], ha->fwver1, ha->fwver2, ha->fwver3, | |
706 | QLA1280_VERSION); | |
707 | return bp; | |
708 | } | |
709 | ||
710 | /************************************************************************** | |
711 | * qla1280_queuecommand | |
712 | * Queue a command to the controller. | |
713 | * | |
714 | * Note: | |
715 | * The mid-level driver tries to ensures that queuecommand never gets invoked | |
716 | * concurrently with itself or the interrupt handler (although the | |
717 | * interrupt handler may call this routine as part of request-completion | |
718 | * handling). Unfortunely, it sometimes calls the scheduler in interrupt | |
719 | * context which is a big NO! NO!. | |
720 | **************************************************************************/ | |
721 | static int | |
722 | qla1280_queuecommand_lck(struct scsi_cmnd *cmd, void (*fn)(struct scsi_cmnd *)) | |
723 | { | |
724 | struct Scsi_Host *host = cmd->device->host; | |
725 | struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata; | |
726 | struct srb *sp = (struct srb *)CMD_SP(cmd); | |
727 | int status; | |
728 | ||
729 | cmd->scsi_done = fn; | |
730 | sp->cmd = cmd; | |
731 | sp->flags = 0; | |
732 | sp->wait = NULL; | |
733 | CMD_HANDLE(cmd) = (unsigned char *)NULL; | |
734 | ||
735 | qla1280_print_scsi_cmd(5, cmd); | |
736 | ||
737 | #ifdef QLA_64BIT_PTR | |
738 | /* | |
739 | * Using 64 bit commands if the PCI bridge doesn't support it is a | |
740 | * bit wasteful, however this should really only happen if one's | |
741 | * PCI controller is completely broken, like the BCM1250. For | |
742 | * sane hardware this is not an issue. | |
743 | */ | |
744 | status = qla1280_64bit_start_scsi(ha, sp); | |
745 | #else | |
746 | status = qla1280_32bit_start_scsi(ha, sp); | |
747 | #endif | |
748 | return status; | |
749 | } | |
750 | ||
751 | static DEF_SCSI_QCMD(qla1280_queuecommand) | |
752 | ||
753 | enum action { | |
754 | ABORT_COMMAND, | |
755 | DEVICE_RESET, | |
756 | BUS_RESET, | |
757 | ADAPTER_RESET, | |
758 | }; | |
759 | ||
760 | ||
761 | static void qla1280_mailbox_timeout(unsigned long __data) | |
762 | { | |
763 | struct scsi_qla_host *ha = (struct scsi_qla_host *)__data; | |
764 | struct device_reg __iomem *reg; | |
765 | reg = ha->iobase; | |
766 | ||
767 | ha->mailbox_out[0] = RD_REG_WORD(®->mailbox0); | |
768 | printk(KERN_ERR "scsi(%ld): mailbox timed out, mailbox0 %04x, " | |
769 | "ictrl %04x, istatus %04x\n", ha->host_no, ha->mailbox_out[0], | |
770 | RD_REG_WORD(®->ictrl), RD_REG_WORD(®->istatus)); | |
771 | complete(ha->mailbox_wait); | |
772 | } | |
773 | ||
774 | static int | |
775 | _qla1280_wait_for_single_command(struct scsi_qla_host *ha, struct srb *sp, | |
776 | struct completion *wait) | |
777 | { | |
778 | int status = FAILED; | |
779 | struct scsi_cmnd *cmd = sp->cmd; | |
780 | ||
781 | spin_unlock_irq(ha->host->host_lock); | |
782 | wait_for_completion_timeout(wait, 4*HZ); | |
783 | spin_lock_irq(ha->host->host_lock); | |
784 | sp->wait = NULL; | |
785 | if(CMD_HANDLE(cmd) == COMPLETED_HANDLE) { | |
786 | status = SUCCESS; | |
787 | (*cmd->scsi_done)(cmd); | |
788 | } | |
789 | return status; | |
790 | } | |
791 | ||
792 | static int | |
793 | qla1280_wait_for_single_command(struct scsi_qla_host *ha, struct srb *sp) | |
794 | { | |
795 | DECLARE_COMPLETION_ONSTACK(wait); | |
796 | ||
797 | sp->wait = &wait; | |
798 | return _qla1280_wait_for_single_command(ha, sp, &wait); | |
799 | } | |
800 | ||
801 | static int | |
802 | qla1280_wait_for_pending_commands(struct scsi_qla_host *ha, int bus, int target) | |
803 | { | |
804 | int cnt; | |
805 | int status; | |
806 | struct srb *sp; | |
807 | struct scsi_cmnd *cmd; | |
808 | ||
809 | status = SUCCESS; | |
810 | ||
811 | /* | |
812 | * Wait for all commands with the designated bus/target | |
813 | * to be completed by the firmware | |
814 | */ | |
815 | for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) { | |
816 | sp = ha->outstanding_cmds[cnt]; | |
817 | if (sp) { | |
818 | cmd = sp->cmd; | |
819 | ||
820 | if (bus >= 0 && SCSI_BUS_32(cmd) != bus) | |
821 | continue; | |
822 | if (target >= 0 && SCSI_TCN_32(cmd) != target) | |
823 | continue; | |
824 | ||
825 | status = qla1280_wait_for_single_command(ha, sp); | |
826 | if (status == FAILED) | |
827 | break; | |
828 | } | |
829 | } | |
830 | return status; | |
831 | } | |
832 | ||
833 | /************************************************************************** | |
834 | * qla1280_error_action | |
835 | * The function will attempt to perform a specified error action and | |
836 | * wait for the results (or time out). | |
837 | * | |
838 | * Input: | |
839 | * cmd = Linux SCSI command packet of the command that cause the | |
840 | * bus reset. | |
841 | * action = error action to take (see action_t) | |
842 | * | |
843 | * Returns: | |
844 | * SUCCESS or FAILED | |
845 | * | |
846 | **************************************************************************/ | |
847 | static int | |
848 | qla1280_error_action(struct scsi_cmnd *cmd, enum action action) | |
849 | { | |
850 | struct scsi_qla_host *ha; | |
851 | int bus, target, lun; | |
852 | struct srb *sp; | |
853 | int i, found; | |
854 | int result=FAILED; | |
855 | int wait_for_bus=-1; | |
856 | int wait_for_target = -1; | |
857 | DECLARE_COMPLETION_ONSTACK(wait); | |
858 | ||
859 | ENTER("qla1280_error_action"); | |
860 | ||
861 | ha = (struct scsi_qla_host *)(CMD_HOST(cmd)->hostdata); | |
862 | sp = (struct srb *)CMD_SP(cmd); | |
863 | bus = SCSI_BUS_32(cmd); | |
864 | target = SCSI_TCN_32(cmd); | |
865 | lun = SCSI_LUN_32(cmd); | |
866 | ||
867 | dprintk(4, "error_action %i, istatus 0x%04x\n", action, | |
868 | RD_REG_WORD(&ha->iobase->istatus)); | |
869 | ||
870 | dprintk(4, "host_cmd 0x%04x, ictrl 0x%04x, jiffies %li\n", | |
871 | RD_REG_WORD(&ha->iobase->host_cmd), | |
872 | RD_REG_WORD(&ha->iobase->ictrl), jiffies); | |
873 | ||
874 | if (qla1280_verbose) | |
875 | printk(KERN_INFO "scsi(%li): Resetting Cmnd=0x%p, " | |
876 | "Handle=0x%p, action=0x%x\n", | |
877 | ha->host_no, cmd, CMD_HANDLE(cmd), action); | |
878 | ||
879 | /* | |
880 | * Check to see if we have the command in the outstanding_cmds[] | |
881 | * array. If not then it must have completed before this error | |
882 | * action was initiated. If the error_action isn't ABORT_COMMAND | |
883 | * then the driver must proceed with the requested action. | |
884 | */ | |
885 | found = -1; | |
886 | for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) { | |
887 | if (sp == ha->outstanding_cmds[i]) { | |
888 | found = i; | |
889 | sp->wait = &wait; /* we'll wait for it to complete */ | |
890 | break; | |
891 | } | |
892 | } | |
893 | ||
894 | if (found < 0) { /* driver doesn't have command */ | |
895 | result = SUCCESS; | |
896 | if (qla1280_verbose) { | |
897 | printk(KERN_INFO | |
898 | "scsi(%ld:%d:%d:%d): specified command has " | |
899 | "already completed.\n", ha->host_no, bus, | |
900 | target, lun); | |
901 | } | |
902 | } | |
903 | ||
904 | switch (action) { | |
905 | ||
906 | case ABORT_COMMAND: | |
907 | dprintk(1, "qla1280: RISC aborting command\n"); | |
908 | /* | |
909 | * The abort might fail due to race when the host_lock | |
910 | * is released to issue the abort. As such, we | |
911 | * don't bother to check the return status. | |
912 | */ | |
913 | if (found >= 0) | |
914 | qla1280_abort_command(ha, sp, found); | |
915 | break; | |
916 | ||
917 | case DEVICE_RESET: | |
918 | if (qla1280_verbose) | |
919 | printk(KERN_INFO | |
920 | "scsi(%ld:%d:%d:%d): Queueing device reset " | |
921 | "command.\n", ha->host_no, bus, target, lun); | |
922 | if (qla1280_device_reset(ha, bus, target) == 0) { | |
923 | /* issued device reset, set wait conditions */ | |
924 | wait_for_bus = bus; | |
925 | wait_for_target = target; | |
926 | } | |
927 | break; | |
928 | ||
929 | case BUS_RESET: | |
930 | if (qla1280_verbose) | |
931 | printk(KERN_INFO "qla1280(%ld:%d): Issued bus " | |
932 | "reset.\n", ha->host_no, bus); | |
933 | if (qla1280_bus_reset(ha, bus) == 0) { | |
934 | /* issued bus reset, set wait conditions */ | |
935 | wait_for_bus = bus; | |
936 | } | |
937 | break; | |
938 | ||
939 | case ADAPTER_RESET: | |
940 | default: | |
941 | if (qla1280_verbose) { | |
942 | printk(KERN_INFO | |
943 | "scsi(%ld): Issued ADAPTER RESET\n", | |
944 | ha->host_no); | |
945 | printk(KERN_INFO "scsi(%ld): I/O processing will " | |
946 | "continue automatically\n", ha->host_no); | |
947 | } | |
948 | ha->flags.reset_active = 1; | |
949 | ||
950 | if (qla1280_abort_isp(ha) != 0) { /* it's dead */ | |
951 | result = FAILED; | |
952 | } | |
953 | ||
954 | ha->flags.reset_active = 0; | |
955 | } | |
956 | ||
957 | /* | |
958 | * At this point, the host_lock has been released and retaken | |
959 | * by the issuance of the mailbox command. | |
960 | * Wait for the command passed in by the mid-layer if it | |
961 | * was found by the driver. It might have been returned | |
962 | * between eh recovery steps, hence the check of the "found" | |
963 | * variable. | |
964 | */ | |
965 | ||
966 | if (found >= 0) | |
967 | result = _qla1280_wait_for_single_command(ha, sp, &wait); | |
968 | ||
969 | if (action == ABORT_COMMAND && result != SUCCESS) { | |
970 | printk(KERN_WARNING | |
971 | "scsi(%li:%i:%i:%i): " | |
972 | "Unable to abort command!\n", | |
973 | ha->host_no, bus, target, lun); | |
974 | } | |
975 | ||
976 | /* | |
977 | * If the command passed in by the mid-layer has been | |
978 | * returned by the board, then wait for any additional | |
979 | * commands which are supposed to complete based upon | |
980 | * the error action. | |
981 | * | |
982 | * All commands are unconditionally returned during a | |
983 | * call to qla1280_abort_isp(), ADAPTER_RESET. No need | |
984 | * to wait for them. | |
985 | */ | |
986 | if (result == SUCCESS && wait_for_bus >= 0) { | |
987 | result = qla1280_wait_for_pending_commands(ha, | |
988 | wait_for_bus, wait_for_target); | |
989 | } | |
990 | ||
991 | dprintk(1, "RESET returning %d\n", result); | |
992 | ||
993 | LEAVE("qla1280_error_action"); | |
994 | return result; | |
995 | } | |
996 | ||
997 | /************************************************************************** | |
998 | * qla1280_abort | |
999 | * Abort the specified SCSI command(s). | |
1000 | **************************************************************************/ | |
1001 | static int | |
1002 | qla1280_eh_abort(struct scsi_cmnd * cmd) | |
1003 | { | |
1004 | int rc; | |
1005 | ||
1006 | spin_lock_irq(cmd->device->host->host_lock); | |
1007 | rc = qla1280_error_action(cmd, ABORT_COMMAND); | |
1008 | spin_unlock_irq(cmd->device->host->host_lock); | |
1009 | ||
1010 | return rc; | |
1011 | } | |
1012 | ||
1013 | /************************************************************************** | |
1014 | * qla1280_device_reset | |
1015 | * Reset the specified SCSI device | |
1016 | **************************************************************************/ | |
1017 | static int | |
1018 | qla1280_eh_device_reset(struct scsi_cmnd *cmd) | |
1019 | { | |
1020 | int rc; | |
1021 | ||
1022 | spin_lock_irq(cmd->device->host->host_lock); | |
1023 | rc = qla1280_error_action(cmd, DEVICE_RESET); | |
1024 | spin_unlock_irq(cmd->device->host->host_lock); | |
1025 | ||
1026 | return rc; | |
1027 | } | |
1028 | ||
1029 | /************************************************************************** | |
1030 | * qla1280_bus_reset | |
1031 | * Reset the specified bus. | |
1032 | **************************************************************************/ | |
1033 | static int | |
1034 | qla1280_eh_bus_reset(struct scsi_cmnd *cmd) | |
1035 | { | |
1036 | int rc; | |
1037 | ||
1038 | spin_lock_irq(cmd->device->host->host_lock); | |
1039 | rc = qla1280_error_action(cmd, BUS_RESET); | |
1040 | spin_unlock_irq(cmd->device->host->host_lock); | |
1041 | ||
1042 | return rc; | |
1043 | } | |
1044 | ||
1045 | /************************************************************************** | |
1046 | * qla1280_adapter_reset | |
1047 | * Reset the specified adapter (both channels) | |
1048 | **************************************************************************/ | |
1049 | static int | |
1050 | qla1280_eh_adapter_reset(struct scsi_cmnd *cmd) | |
1051 | { | |
1052 | int rc; | |
1053 | ||
1054 | spin_lock_irq(cmd->device->host->host_lock); | |
1055 | rc = qla1280_error_action(cmd, ADAPTER_RESET); | |
1056 | spin_unlock_irq(cmd->device->host->host_lock); | |
1057 | ||
1058 | return rc; | |
1059 | } | |
1060 | ||
1061 | static int | |
1062 | qla1280_biosparam(struct scsi_device *sdev, struct block_device *bdev, | |
1063 | sector_t capacity, int geom[]) | |
1064 | { | |
1065 | int heads, sectors, cylinders; | |
1066 | ||
1067 | heads = 64; | |
1068 | sectors = 32; | |
1069 | cylinders = (unsigned long)capacity / (heads * sectors); | |
1070 | if (cylinders > 1024) { | |
1071 | heads = 255; | |
1072 | sectors = 63; | |
1073 | cylinders = (unsigned long)capacity / (heads * sectors); | |
1074 | /* if (cylinders > 1023) | |
1075 | cylinders = 1023; */ | |
1076 | } | |
1077 | ||
1078 | geom[0] = heads; | |
1079 | geom[1] = sectors; | |
1080 | geom[2] = cylinders; | |
1081 | ||
1082 | return 0; | |
1083 | } | |
1084 | ||
1085 | ||
1086 | /* disable risc and host interrupts */ | |
1087 | static inline void | |
1088 | qla1280_disable_intrs(struct scsi_qla_host *ha) | |
1089 | { | |
1090 | WRT_REG_WORD(&ha->iobase->ictrl, 0); | |
1091 | RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */ | |
1092 | } | |
1093 | ||
1094 | /* enable risc and host interrupts */ | |
1095 | static inline void | |
1096 | qla1280_enable_intrs(struct scsi_qla_host *ha) | |
1097 | { | |
1098 | WRT_REG_WORD(&ha->iobase->ictrl, (ISP_EN_INT | ISP_EN_RISC)); | |
1099 | RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */ | |
1100 | } | |
1101 | ||
1102 | /************************************************************************** | |
1103 | * qla1280_intr_handler | |
1104 | * Handles the H/W interrupt | |
1105 | **************************************************************************/ | |
1106 | static irqreturn_t | |
1107 | qla1280_intr_handler(int irq, void *dev_id) | |
1108 | { | |
1109 | struct scsi_qla_host *ha; | |
1110 | struct device_reg __iomem *reg; | |
1111 | u16 data; | |
1112 | int handled = 0; | |
1113 | ||
1114 | ENTER_INTR ("qla1280_intr_handler"); | |
1115 | ha = (struct scsi_qla_host *)dev_id; | |
1116 | ||
1117 | spin_lock(ha->host->host_lock); | |
1118 | ||
1119 | ha->isr_count++; | |
1120 | reg = ha->iobase; | |
1121 | ||
1122 | qla1280_disable_intrs(ha); | |
1123 | ||
1124 | data = qla1280_debounce_register(®->istatus); | |
1125 | /* Check for pending interrupts. */ | |
1126 | if (data & RISC_INT) { | |
1127 | qla1280_isr(ha, &ha->done_q); | |
1128 | handled = 1; | |
1129 | } | |
1130 | if (!list_empty(&ha->done_q)) | |
1131 | qla1280_done(ha); | |
1132 | ||
1133 | spin_unlock(ha->host->host_lock); | |
1134 | ||
1135 | qla1280_enable_intrs(ha); | |
1136 | ||
1137 | LEAVE_INTR("qla1280_intr_handler"); | |
1138 | return IRQ_RETVAL(handled); | |
1139 | } | |
1140 | ||
1141 | ||
1142 | static int | |
1143 | qla1280_set_target_parameters(struct scsi_qla_host *ha, int bus, int target) | |
1144 | { | |
1145 | uint8_t mr; | |
1146 | uint16_t mb[MAILBOX_REGISTER_COUNT]; | |
1147 | struct nvram *nv; | |
1148 | int status, lun; | |
1149 | ||
1150 | nv = &ha->nvram; | |
1151 | ||
1152 | mr = BIT_3 | BIT_2 | BIT_1 | BIT_0; | |
1153 | ||
1154 | /* Set Target Parameters. */ | |
1155 | mb[0] = MBC_SET_TARGET_PARAMETERS; | |
1156 | mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8); | |
1157 | mb[2] = nv->bus[bus].target[target].parameter.renegotiate_on_error << 8; | |
1158 | mb[2] |= nv->bus[bus].target[target].parameter.stop_queue_on_check << 9; | |
1159 | mb[2] |= nv->bus[bus].target[target].parameter.auto_request_sense << 10; | |
1160 | mb[2] |= nv->bus[bus].target[target].parameter.tag_queuing << 11; | |
1161 | mb[2] |= nv->bus[bus].target[target].parameter.enable_sync << 12; | |
1162 | mb[2] |= nv->bus[bus].target[target].parameter.enable_wide << 13; | |
1163 | mb[2] |= nv->bus[bus].target[target].parameter.parity_checking << 14; | |
1164 | mb[2] |= nv->bus[bus].target[target].parameter.disconnect_allowed << 15; | |
1165 | ||
1166 | if (IS_ISP1x160(ha)) { | |
1167 | mb[2] |= nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr << 5; | |
1168 | mb[3] = (nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8); | |
1169 | mb[6] = (nv->bus[bus].target[target].ppr_1x160.flags.ppr_options << 8) | | |
1170 | nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width; | |
1171 | mr |= BIT_6; | |
1172 | } else { | |
1173 | mb[3] = (nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8); | |
1174 | } | |
1175 | mb[3] |= nv->bus[bus].target[target].sync_period; | |
1176 | ||
1177 | status = qla1280_mailbox_command(ha, mr, mb); | |
1178 | ||
1179 | /* Set Device Queue Parameters. */ | |
1180 | for (lun = 0; lun < MAX_LUNS; lun++) { | |
1181 | mb[0] = MBC_SET_DEVICE_QUEUE; | |
1182 | mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8); | |
1183 | mb[1] |= lun; | |
1184 | mb[2] = nv->bus[bus].max_queue_depth; | |
1185 | mb[3] = nv->bus[bus].target[target].execution_throttle; | |
1186 | status |= qla1280_mailbox_command(ha, 0x0f, mb); | |
1187 | } | |
1188 | ||
1189 | if (status) | |
1190 | printk(KERN_WARNING "scsi(%ld:%i:%i): " | |
1191 | "qla1280_set_target_parameters() failed\n", | |
1192 | ha->host_no, bus, target); | |
1193 | return status; | |
1194 | } | |
1195 | ||
1196 | ||
1197 | /************************************************************************** | |
1198 | * qla1280_slave_configure | |
1199 | * | |
1200 | * Description: | |
1201 | * Determines the queue depth for a given device. There are two ways | |
1202 | * a queue depth can be obtained for a tagged queueing device. One | |
1203 | * way is the default queue depth which is determined by whether | |
1204 | * If it is defined, then it is used | |
1205 | * as the default queue depth. Otherwise, we use either 4 or 8 as the | |
1206 | * default queue depth (dependent on the number of hardware SCBs). | |
1207 | **************************************************************************/ | |
1208 | static int | |
1209 | qla1280_slave_configure(struct scsi_device *device) | |
1210 | { | |
1211 | struct scsi_qla_host *ha; | |
1212 | int default_depth = 3; | |
1213 | int bus = device->channel; | |
1214 | int target = device->id; | |
1215 | int status = 0; | |
1216 | struct nvram *nv; | |
1217 | unsigned long flags; | |
1218 | ||
1219 | ha = (struct scsi_qla_host *)device->host->hostdata; | |
1220 | nv = &ha->nvram; | |
1221 | ||
1222 | if (qla1280_check_for_dead_scsi_bus(ha, bus)) | |
1223 | return 1; | |
1224 | ||
1225 | if (device->tagged_supported && | |
1226 | (ha->bus_settings[bus].qtag_enables & (BIT_0 << target))) { | |
1227 | scsi_change_queue_depth(device, ha->bus_settings[bus].hiwat); | |
1228 | } else { | |
1229 | scsi_change_queue_depth(device, default_depth); | |
1230 | } | |
1231 | ||
1232 | nv->bus[bus].target[target].parameter.enable_sync = device->sdtr; | |
1233 | nv->bus[bus].target[target].parameter.enable_wide = device->wdtr; | |
1234 | nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = device->ppr; | |
1235 | ||
1236 | if (driver_setup.no_sync || | |
1237 | (driver_setup.sync_mask && | |
1238 | (~driver_setup.sync_mask & (1 << target)))) | |
1239 | nv->bus[bus].target[target].parameter.enable_sync = 0; | |
1240 | if (driver_setup.no_wide || | |
1241 | (driver_setup.wide_mask && | |
1242 | (~driver_setup.wide_mask & (1 << target)))) | |
1243 | nv->bus[bus].target[target].parameter.enable_wide = 0; | |
1244 | if (IS_ISP1x160(ha)) { | |
1245 | if (driver_setup.no_ppr || | |
1246 | (driver_setup.ppr_mask && | |
1247 | (~driver_setup.ppr_mask & (1 << target)))) | |
1248 | nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 0; | |
1249 | } | |
1250 | ||
1251 | spin_lock_irqsave(ha->host->host_lock, flags); | |
1252 | if (nv->bus[bus].target[target].parameter.enable_sync) | |
1253 | status = qla1280_set_target_parameters(ha, bus, target); | |
1254 | qla1280_get_target_parameters(ha, device); | |
1255 | spin_unlock_irqrestore(ha->host->host_lock, flags); | |
1256 | return status; | |
1257 | } | |
1258 | ||
1259 | ||
1260 | /* | |
1261 | * qla1280_done | |
1262 | * Process completed commands. | |
1263 | * | |
1264 | * Input: | |
1265 | * ha = adapter block pointer. | |
1266 | */ | |
1267 | static void | |
1268 | qla1280_done(struct scsi_qla_host *ha) | |
1269 | { | |
1270 | struct srb *sp; | |
1271 | struct list_head *done_q; | |
1272 | int bus, target, lun; | |
1273 | struct scsi_cmnd *cmd; | |
1274 | ||
1275 | ENTER("qla1280_done"); | |
1276 | ||
1277 | done_q = &ha->done_q; | |
1278 | ||
1279 | while (!list_empty(done_q)) { | |
1280 | sp = list_entry(done_q->next, struct srb, list); | |
1281 | ||
1282 | list_del(&sp->list); | |
1283 | ||
1284 | cmd = sp->cmd; | |
1285 | bus = SCSI_BUS_32(cmd); | |
1286 | target = SCSI_TCN_32(cmd); | |
1287 | lun = SCSI_LUN_32(cmd); | |
1288 | ||
1289 | switch ((CMD_RESULT(cmd) >> 16)) { | |
1290 | case DID_RESET: | |
1291 | /* Issue marker command. */ | |
1292 | if (!ha->flags.abort_isp_active) | |
1293 | qla1280_marker(ha, bus, target, 0, MK_SYNC_ID); | |
1294 | break; | |
1295 | case DID_ABORT: | |
1296 | sp->flags &= ~SRB_ABORT_PENDING; | |
1297 | sp->flags |= SRB_ABORTED; | |
1298 | break; | |
1299 | default: | |
1300 | break; | |
1301 | } | |
1302 | ||
1303 | /* Release memory used for this I/O */ | |
1304 | scsi_dma_unmap(cmd); | |
1305 | ||
1306 | /* Call the mid-level driver interrupt handler */ | |
1307 | ha->actthreads--; | |
1308 | ||
1309 | if (sp->wait == NULL) | |
1310 | (*(cmd)->scsi_done)(cmd); | |
1311 | else | |
1312 | complete(sp->wait); | |
1313 | } | |
1314 | LEAVE("qla1280_done"); | |
1315 | } | |
1316 | ||
1317 | /* | |
1318 | * Translates a ISP error to a Linux SCSI error | |
1319 | */ | |
1320 | static int | |
1321 | qla1280_return_status(struct response * sts, struct scsi_cmnd *cp) | |
1322 | { | |
1323 | int host_status = DID_ERROR; | |
1324 | uint16_t comp_status = le16_to_cpu(sts->comp_status); | |
1325 | uint16_t state_flags = le16_to_cpu(sts->state_flags); | |
1326 | uint32_t residual_length = le32_to_cpu(sts->residual_length); | |
1327 | uint16_t scsi_status = le16_to_cpu(sts->scsi_status); | |
1328 | #if DEBUG_QLA1280_INTR | |
1329 | static char *reason[] = { | |
1330 | "DID_OK", | |
1331 | "DID_NO_CONNECT", | |
1332 | "DID_BUS_BUSY", | |
1333 | "DID_TIME_OUT", | |
1334 | "DID_BAD_TARGET", | |
1335 | "DID_ABORT", | |
1336 | "DID_PARITY", | |
1337 | "DID_ERROR", | |
1338 | "DID_RESET", | |
1339 | "DID_BAD_INTR" | |
1340 | }; | |
1341 | #endif /* DEBUG_QLA1280_INTR */ | |
1342 | ||
1343 | ENTER("qla1280_return_status"); | |
1344 | ||
1345 | #if DEBUG_QLA1280_INTR | |
1346 | /* | |
1347 | dprintk(1, "qla1280_return_status: compl status = 0x%04x\n", | |
1348 | comp_status); | |
1349 | */ | |
1350 | #endif | |
1351 | ||
1352 | switch (comp_status) { | |
1353 | case CS_COMPLETE: | |
1354 | host_status = DID_OK; | |
1355 | break; | |
1356 | ||
1357 | case CS_INCOMPLETE: | |
1358 | if (!(state_flags & SF_GOT_BUS)) | |
1359 | host_status = DID_NO_CONNECT; | |
1360 | else if (!(state_flags & SF_GOT_TARGET)) | |
1361 | host_status = DID_BAD_TARGET; | |
1362 | else if (!(state_flags & SF_SENT_CDB)) | |
1363 | host_status = DID_ERROR; | |
1364 | else if (!(state_flags & SF_TRANSFERRED_DATA)) | |
1365 | host_status = DID_ERROR; | |
1366 | else if (!(state_flags & SF_GOT_STATUS)) | |
1367 | host_status = DID_ERROR; | |
1368 | else if (!(state_flags & SF_GOT_SENSE)) | |
1369 | host_status = DID_ERROR; | |
1370 | break; | |
1371 | ||
1372 | case CS_RESET: | |
1373 | host_status = DID_RESET; | |
1374 | break; | |
1375 | ||
1376 | case CS_ABORTED: | |
1377 | host_status = DID_ABORT; | |
1378 | break; | |
1379 | ||
1380 | case CS_TIMEOUT: | |
1381 | host_status = DID_TIME_OUT; | |
1382 | break; | |
1383 | ||
1384 | case CS_DATA_OVERRUN: | |
1385 | dprintk(2, "Data overrun 0x%x\n", residual_length); | |
1386 | dprintk(2, "qla1280_return_status: response packet data\n"); | |
1387 | qla1280_dump_buffer(2, (char *)sts, RESPONSE_ENTRY_SIZE); | |
1388 | host_status = DID_ERROR; | |
1389 | break; | |
1390 | ||
1391 | case CS_DATA_UNDERRUN: | |
1392 | if ((scsi_bufflen(cp) - residual_length) < | |
1393 | cp->underflow) { | |
1394 | printk(KERN_WARNING | |
1395 | "scsi: Underflow detected - retrying " | |
1396 | "command.\n"); | |
1397 | host_status = DID_ERROR; | |
1398 | } else { | |
1399 | scsi_set_resid(cp, residual_length); | |
1400 | host_status = DID_OK; | |
1401 | } | |
1402 | break; | |
1403 | ||
1404 | default: | |
1405 | host_status = DID_ERROR; | |
1406 | break; | |
1407 | } | |
1408 | ||
1409 | #if DEBUG_QLA1280_INTR | |
1410 | dprintk(1, "qla1280 ISP status: host status (%s) scsi status %x\n", | |
1411 | reason[host_status], scsi_status); | |
1412 | #endif | |
1413 | ||
1414 | LEAVE("qla1280_return_status"); | |
1415 | ||
1416 | return (scsi_status & 0xff) | (host_status << 16); | |
1417 | } | |
1418 | ||
1419 | /****************************************************************************/ | |
1420 | /* QLogic ISP1280 Hardware Support Functions. */ | |
1421 | /****************************************************************************/ | |
1422 | ||
1423 | /* | |
1424 | * qla1280_initialize_adapter | |
1425 | * Initialize board. | |
1426 | * | |
1427 | * Input: | |
1428 | * ha = adapter block pointer. | |
1429 | * | |
1430 | * Returns: | |
1431 | * 0 = success | |
1432 | */ | |
1433 | static int | |
1434 | qla1280_initialize_adapter(struct scsi_qla_host *ha) | |
1435 | { | |
1436 | struct device_reg __iomem *reg; | |
1437 | int status; | |
1438 | int bus; | |
1439 | unsigned long flags; | |
1440 | ||
1441 | ENTER("qla1280_initialize_adapter"); | |
1442 | ||
1443 | /* Clear adapter flags. */ | |
1444 | ha->flags.online = 0; | |
1445 | ha->flags.disable_host_adapter = 0; | |
1446 | ha->flags.reset_active = 0; | |
1447 | ha->flags.abort_isp_active = 0; | |
1448 | ||
1449 | #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) | |
1450 | if (ia64_platform_is("sn2")) { | |
1451 | printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA " | |
1452 | "dual channel lockup workaround\n", ha->host_no); | |
1453 | ha->flags.use_pci_vchannel = 1; | |
1454 | driver_setup.no_nvram = 1; | |
1455 | } | |
1456 | #endif | |
1457 | ||
1458 | /* TODO: implement support for the 1040 nvram format */ | |
1459 | if (IS_ISP1040(ha)) | |
1460 | driver_setup.no_nvram = 1; | |
1461 | ||
1462 | dprintk(1, "Configure PCI space for adapter...\n"); | |
1463 | ||
1464 | reg = ha->iobase; | |
1465 | ||
1466 | /* Insure mailbox registers are free. */ | |
1467 | WRT_REG_WORD(®->semaphore, 0); | |
1468 | WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT); | |
1469 | WRT_REG_WORD(®->host_cmd, HC_CLR_HOST_INT); | |
1470 | RD_REG_WORD(®->host_cmd); | |
1471 | ||
1472 | if (qla1280_read_nvram(ha)) { | |
1473 | dprintk(2, "qla1280_initialize_adapter: failed to read " | |
1474 | "NVRAM\n"); | |
1475 | } | |
1476 | ||
1477 | /* | |
1478 | * It's necessary to grab the spin here as qla1280_mailbox_command | |
1479 | * needs to be able to drop the lock unconditionally to wait | |
1480 | * for completion. | |
1481 | */ | |
1482 | spin_lock_irqsave(ha->host->host_lock, flags); | |
1483 | ||
1484 | status = qla1280_load_firmware(ha); | |
1485 | if (status) { | |
1486 | printk(KERN_ERR "scsi(%li): initialize: pci probe failed!\n", | |
1487 | ha->host_no); | |
1488 | goto out; | |
1489 | } | |
1490 | ||
1491 | /* Setup adapter based on NVRAM parameters. */ | |
1492 | dprintk(1, "scsi(%ld): Configure NVRAM parameters\n", ha->host_no); | |
1493 | qla1280_nvram_config(ha); | |
1494 | ||
1495 | if (ha->flags.disable_host_adapter) { | |
1496 | status = 1; | |
1497 | goto out; | |
1498 | } | |
1499 | ||
1500 | status = qla1280_init_rings(ha); | |
1501 | if (status) | |
1502 | goto out; | |
1503 | ||
1504 | /* Issue SCSI reset, if we can't reset twice then bus is dead */ | |
1505 | for (bus = 0; bus < ha->ports; bus++) { | |
1506 | if (!ha->bus_settings[bus].disable_scsi_reset && | |
1507 | qla1280_bus_reset(ha, bus) && | |
1508 | qla1280_bus_reset(ha, bus)) | |
1509 | ha->bus_settings[bus].scsi_bus_dead = 1; | |
1510 | } | |
1511 | ||
1512 | ha->flags.online = 1; | |
1513 | out: | |
1514 | spin_unlock_irqrestore(ha->host->host_lock, flags); | |
1515 | ||
1516 | if (status) | |
1517 | dprintk(2, "qla1280_initialize_adapter: **** FAILED ****\n"); | |
1518 | ||
1519 | LEAVE("qla1280_initialize_adapter"); | |
1520 | return status; | |
1521 | } | |
1522 | ||
1523 | /* | |
1524 | * qla1280_request_firmware | |
1525 | * Acquire firmware for chip. Retain in memory | |
1526 | * for error recovery. | |
1527 | * | |
1528 | * Input: | |
1529 | * ha = adapter block pointer. | |
1530 | * | |
1531 | * Returns: | |
1532 | * Pointer to firmware image or an error code | |
1533 | * cast to pointer via ERR_PTR(). | |
1534 | */ | |
1535 | static const struct firmware * | |
1536 | qla1280_request_firmware(struct scsi_qla_host *ha) | |
1537 | { | |
1538 | const struct firmware *fw; | |
1539 | int err; | |
1540 | int index; | |
1541 | char *fwname; | |
1542 | ||
1543 | spin_unlock_irq(ha->host->host_lock); | |
1544 | mutex_lock(&qla1280_firmware_mutex); | |
1545 | ||
1546 | index = ql1280_board_tbl[ha->devnum].fw_index; | |
1547 | fw = qla1280_fw_tbl[index].fw; | |
1548 | if (fw) | |
1549 | goto out; | |
1550 | ||
1551 | fwname = qla1280_fw_tbl[index].fwname; | |
1552 | err = request_firmware(&fw, fwname, &ha->pdev->dev); | |
1553 | ||
1554 | if (err) { | |
1555 | printk(KERN_ERR "Failed to load image \"%s\" err %d\n", | |
1556 | fwname, err); | |
1557 | fw = ERR_PTR(err); | |
1558 | goto unlock; | |
1559 | } | |
1560 | if ((fw->size % 2) || (fw->size < 6)) { | |
1561 | printk(KERN_ERR "Invalid firmware length %zu in image \"%s\"\n", | |
1562 | fw->size, fwname); | |
1563 | release_firmware(fw); | |
1564 | fw = ERR_PTR(-EINVAL); | |
1565 | goto unlock; | |
1566 | } | |
1567 | ||
1568 | qla1280_fw_tbl[index].fw = fw; | |
1569 | ||
1570 | out: | |
1571 | ha->fwver1 = fw->data[0]; | |
1572 | ha->fwver2 = fw->data[1]; | |
1573 | ha->fwver3 = fw->data[2]; | |
1574 | unlock: | |
1575 | mutex_unlock(&qla1280_firmware_mutex); | |
1576 | spin_lock_irq(ha->host->host_lock); | |
1577 | return fw; | |
1578 | } | |
1579 | ||
1580 | /* | |
1581 | * Chip diagnostics | |
1582 | * Test chip for proper operation. | |
1583 | * | |
1584 | * Input: | |
1585 | * ha = adapter block pointer. | |
1586 | * | |
1587 | * Returns: | |
1588 | * 0 = success. | |
1589 | */ | |
1590 | static int | |
1591 | qla1280_chip_diag(struct scsi_qla_host *ha) | |
1592 | { | |
1593 | uint16_t mb[MAILBOX_REGISTER_COUNT]; | |
1594 | struct device_reg __iomem *reg = ha->iobase; | |
1595 | int status = 0; | |
1596 | int cnt; | |
1597 | uint16_t data; | |
1598 | dprintk(3, "qla1280_chip_diag: testing device at 0x%p \n", ®->id_l); | |
1599 | ||
1600 | dprintk(1, "scsi(%ld): Verifying chip\n", ha->host_no); | |
1601 | ||
1602 | /* Soft reset chip and wait for it to finish. */ | |
1603 | WRT_REG_WORD(®->ictrl, ISP_RESET); | |
1604 | ||
1605 | /* | |
1606 | * We can't do a traditional PCI write flush here by reading | |
1607 | * back the register. The card will not respond once the reset | |
1608 | * is in action and we end up with a machine check exception | |
1609 | * instead. Nothing to do but wait and hope for the best. | |
1610 | * A portable pci_write_flush(pdev) call would be very useful here. | |
1611 | */ | |
1612 | udelay(20); | |
1613 | data = qla1280_debounce_register(®->ictrl); | |
1614 | /* | |
1615 | * Yet another QLogic gem ;-( | |
1616 | */ | |
1617 | for (cnt = 1000000; cnt && data & ISP_RESET; cnt--) { | |
1618 | udelay(5); | |
1619 | data = RD_REG_WORD(®->ictrl); | |
1620 | } | |
1621 | ||
1622 | if (!cnt) | |
1623 | goto fail; | |
1624 | ||
1625 | /* Reset register cleared by chip reset. */ | |
1626 | dprintk(3, "qla1280_chip_diag: reset register cleared by chip reset\n"); | |
1627 | ||
1628 | WRT_REG_WORD(®->cfg_1, 0); | |
1629 | ||
1630 | /* Reset RISC and disable BIOS which | |
1631 | allows RISC to execute out of RAM. */ | |
1632 | WRT_REG_WORD(®->host_cmd, HC_RESET_RISC | | |
1633 | HC_RELEASE_RISC | HC_DISABLE_BIOS); | |
1634 | ||
1635 | RD_REG_WORD(®->id_l); /* Flush PCI write */ | |
1636 | data = qla1280_debounce_register(®->mailbox0); | |
1637 | ||
1638 | /* | |
1639 | * I *LOVE* this code! | |
1640 | */ | |
1641 | for (cnt = 1000000; cnt && data == MBS_BUSY; cnt--) { | |
1642 | udelay(5); | |
1643 | data = RD_REG_WORD(®->mailbox0); | |
1644 | } | |
1645 | ||
1646 | if (!cnt) | |
1647 | goto fail; | |
1648 | ||
1649 | /* Check product ID of chip */ | |
1650 | dprintk(3, "qla1280_chip_diag: Checking product ID of chip\n"); | |
1651 | ||
1652 | if (RD_REG_WORD(®->mailbox1) != PROD_ID_1 || | |
1653 | (RD_REG_WORD(®->mailbox2) != PROD_ID_2 && | |
1654 | RD_REG_WORD(®->mailbox2) != PROD_ID_2a) || | |
1655 | RD_REG_WORD(®->mailbox3) != PROD_ID_3 || | |
1656 | RD_REG_WORD(®->mailbox4) != PROD_ID_4) { | |
1657 | printk(KERN_INFO "qla1280: Wrong product ID = " | |
1658 | "0x%x,0x%x,0x%x,0x%x\n", | |
1659 | RD_REG_WORD(®->mailbox1), | |
1660 | RD_REG_WORD(®->mailbox2), | |
1661 | RD_REG_WORD(®->mailbox3), | |
1662 | RD_REG_WORD(®->mailbox4)); | |
1663 | goto fail; | |
1664 | } | |
1665 | ||
1666 | /* | |
1667 | * Enable ints early!!! | |
1668 | */ | |
1669 | qla1280_enable_intrs(ha); | |
1670 | ||
1671 | dprintk(1, "qla1280_chip_diag: Checking mailboxes of chip\n"); | |
1672 | /* Wrap Incoming Mailboxes Test. */ | |
1673 | mb[0] = MBC_MAILBOX_REGISTER_TEST; | |
1674 | mb[1] = 0xAAAA; | |
1675 | mb[2] = 0x5555; | |
1676 | mb[3] = 0xAA55; | |
1677 | mb[4] = 0x55AA; | |
1678 | mb[5] = 0xA5A5; | |
1679 | mb[6] = 0x5A5A; | |
1680 | mb[7] = 0x2525; | |
1681 | ||
1682 | status = qla1280_mailbox_command(ha, 0xff, mb); | |
1683 | if (status) | |
1684 | goto fail; | |
1685 | ||
1686 | if (mb[1] != 0xAAAA || mb[2] != 0x5555 || mb[3] != 0xAA55 || | |
1687 | mb[4] != 0x55AA || mb[5] != 0xA5A5 || mb[6] != 0x5A5A || | |
1688 | mb[7] != 0x2525) { | |
1689 | printk(KERN_INFO "qla1280: Failed mbox check\n"); | |
1690 | goto fail; | |
1691 | } | |
1692 | ||
1693 | dprintk(3, "qla1280_chip_diag: exiting normally\n"); | |
1694 | return 0; | |
1695 | fail: | |
1696 | dprintk(2, "qla1280_chip_diag: **** FAILED ****\n"); | |
1697 | return status; | |
1698 | } | |
1699 | ||
1700 | static int | |
1701 | qla1280_load_firmware_pio(struct scsi_qla_host *ha) | |
1702 | { | |
1703 | /* enter with host_lock acquired */ | |
1704 | ||
1705 | const struct firmware *fw; | |
1706 | const __le16 *fw_data; | |
1707 | uint16_t risc_address, risc_code_size; | |
1708 | uint16_t mb[MAILBOX_REGISTER_COUNT], i; | |
1709 | int err = 0; | |
1710 | ||
1711 | fw = qla1280_request_firmware(ha); | |
1712 | if (IS_ERR(fw)) | |
1713 | return PTR_ERR(fw); | |
1714 | ||
1715 | fw_data = (const __le16 *)&fw->data[0]; | |
1716 | ha->fwstart = __le16_to_cpu(fw_data[2]); | |
1717 | ||
1718 | /* Load RISC code. */ | |
1719 | risc_address = ha->fwstart; | |
1720 | fw_data = (const __le16 *)&fw->data[6]; | |
1721 | risc_code_size = (fw->size - 6) / 2; | |
1722 | ||
1723 | for (i = 0; i < risc_code_size; i++) { | |
1724 | mb[0] = MBC_WRITE_RAM_WORD; | |
1725 | mb[1] = risc_address + i; | |
1726 | mb[2] = __le16_to_cpu(fw_data[i]); | |
1727 | ||
1728 | err = qla1280_mailbox_command(ha, BIT_0 | BIT_1 | BIT_2, mb); | |
1729 | if (err) { | |
1730 | printk(KERN_ERR "scsi(%li): Failed to load firmware\n", | |
1731 | ha->host_no); | |
1732 | break; | |
1733 | } | |
1734 | } | |
1735 | ||
1736 | return err; | |
1737 | } | |
1738 | ||
1739 | #define DUMP_IT_BACK 0 /* for debug of RISC loading */ | |
1740 | static int | |
1741 | qla1280_load_firmware_dma(struct scsi_qla_host *ha) | |
1742 | { | |
1743 | /* enter with host_lock acquired */ | |
1744 | const struct firmware *fw; | |
1745 | const __le16 *fw_data; | |
1746 | uint16_t risc_address, risc_code_size; | |
1747 | uint16_t mb[MAILBOX_REGISTER_COUNT], cnt; | |
1748 | int err = 0, num, i; | |
1749 | #if DUMP_IT_BACK | |
1750 | uint8_t *sp, *tbuf; | |
1751 | dma_addr_t p_tbuf; | |
1752 | ||
1753 | tbuf = pci_alloc_consistent(ha->pdev, 8000, &p_tbuf); | |
1754 | if (!tbuf) | |
1755 | return -ENOMEM; | |
1756 | #endif | |
1757 | ||
1758 | fw = qla1280_request_firmware(ha); | |
1759 | if (IS_ERR(fw)) | |
1760 | return PTR_ERR(fw); | |
1761 | ||
1762 | fw_data = (const __le16 *)&fw->data[0]; | |
1763 | ha->fwstart = __le16_to_cpu(fw_data[2]); | |
1764 | ||
1765 | /* Load RISC code. */ | |
1766 | risc_address = ha->fwstart; | |
1767 | fw_data = (const __le16 *)&fw->data[6]; | |
1768 | risc_code_size = (fw->size - 6) / 2; | |
1769 | ||
1770 | dprintk(1, "%s: DMA RISC code (%i) words\n", | |
1771 | __func__, risc_code_size); | |
1772 | ||
1773 | num = 0; | |
1774 | while (risc_code_size > 0) { | |
1775 | int warn __attribute__((unused)) = 0; | |
1776 | ||
1777 | cnt = 2000 >> 1; | |
1778 | ||
1779 | if (cnt > risc_code_size) | |
1780 | cnt = risc_code_size; | |
1781 | ||
1782 | dprintk(2, "qla1280_setup_chip: loading risc @ =(0x%p)," | |
1783 | "%d,%d(0x%x)\n", | |
1784 | fw_data, cnt, num, risc_address); | |
1785 | for(i = 0; i < cnt; i++) | |
1786 | ((__le16 *)ha->request_ring)[i] = fw_data[i]; | |
1787 | ||
1788 | mb[0] = MBC_LOAD_RAM; | |
1789 | mb[1] = risc_address; | |
1790 | mb[4] = cnt; | |
1791 | mb[3] = ha->request_dma & 0xffff; | |
1792 | mb[2] = (ha->request_dma >> 16) & 0xffff; | |
1793 | mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff; | |
1794 | mb[6] = pci_dma_hi32(ha->request_dma) >> 16; | |
1795 | dprintk(2, "%s: op=%d 0x%p = 0x%4x,0x%4x,0x%4x,0x%4x\n", | |
1796 | __func__, mb[0], | |
1797 | (void *)(long)ha->request_dma, | |
1798 | mb[6], mb[7], mb[2], mb[3]); | |
1799 | err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 | | |
1800 | BIT_1 | BIT_0, mb); | |
1801 | if (err) { | |
1802 | printk(KERN_ERR "scsi(%li): Failed to load partial " | |
1803 | "segment of f\n", ha->host_no); | |
1804 | goto out; | |
1805 | } | |
1806 | ||
1807 | #if DUMP_IT_BACK | |
1808 | mb[0] = MBC_DUMP_RAM; | |
1809 | mb[1] = risc_address; | |
1810 | mb[4] = cnt; | |
1811 | mb[3] = p_tbuf & 0xffff; | |
1812 | mb[2] = (p_tbuf >> 16) & 0xffff; | |
1813 | mb[7] = pci_dma_hi32(p_tbuf) & 0xffff; | |
1814 | mb[6] = pci_dma_hi32(p_tbuf) >> 16; | |
1815 | ||
1816 | err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 | | |
1817 | BIT_1 | BIT_0, mb); | |
1818 | if (err) { | |
1819 | printk(KERN_ERR | |
1820 | "Failed to dump partial segment of f/w\n"); | |
1821 | goto out; | |
1822 | } | |
1823 | sp = (uint8_t *)ha->request_ring; | |
1824 | for (i = 0; i < (cnt << 1); i++) { | |
1825 | if (tbuf[i] != sp[i] && warn++ < 10) { | |
1826 | printk(KERN_ERR "%s: FW compare error @ " | |
1827 | "byte(0x%x) loop#=%x\n", | |
1828 | __func__, i, num); | |
1829 | printk(KERN_ERR "%s: FWbyte=%x " | |
1830 | "FWfromChip=%x\n", | |
1831 | __func__, sp[i], tbuf[i]); | |
1832 | /*break; */ | |
1833 | } | |
1834 | } | |
1835 | #endif | |
1836 | risc_address += cnt; | |
1837 | risc_code_size = risc_code_size - cnt; | |
1838 | fw_data = fw_data + cnt; | |
1839 | num++; | |
1840 | } | |
1841 | ||
1842 | out: | |
1843 | #if DUMP_IT_BACK | |
1844 | pci_free_consistent(ha->pdev, 8000, tbuf, p_tbuf); | |
1845 | #endif | |
1846 | return err; | |
1847 | } | |
1848 | ||
1849 | static int | |
1850 | qla1280_start_firmware(struct scsi_qla_host *ha) | |
1851 | { | |
1852 | uint16_t mb[MAILBOX_REGISTER_COUNT]; | |
1853 | int err; | |
1854 | ||
1855 | dprintk(1, "%s: Verifying checksum of loaded RISC code.\n", | |
1856 | __func__); | |
1857 | ||
1858 | /* Verify checksum of loaded RISC code. */ | |
1859 | mb[0] = MBC_VERIFY_CHECKSUM; | |
1860 | /* mb[1] = ql12_risc_code_addr01; */ | |
1861 | mb[1] = ha->fwstart; | |
1862 | err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb); | |
1863 | if (err) { | |
1864 | printk(KERN_ERR "scsi(%li): RISC checksum failed.\n", ha->host_no); | |
1865 | return err; | |
1866 | } | |
1867 | ||
1868 | /* Start firmware execution. */ | |
1869 | dprintk(1, "%s: start firmware running.\n", __func__); | |
1870 | mb[0] = MBC_EXECUTE_FIRMWARE; | |
1871 | mb[1] = ha->fwstart; | |
1872 | err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]); | |
1873 | if (err) { | |
1874 | printk(KERN_ERR "scsi(%li): Failed to start firmware\n", | |
1875 | ha->host_no); | |
1876 | } | |
1877 | ||
1878 | return err; | |
1879 | } | |
1880 | ||
1881 | static int | |
1882 | qla1280_load_firmware(struct scsi_qla_host *ha) | |
1883 | { | |
1884 | /* enter with host_lock taken */ | |
1885 | int err; | |
1886 | ||
1887 | err = qla1280_chip_diag(ha); | |
1888 | if (err) | |
1889 | goto out; | |
1890 | if (IS_ISP1040(ha)) | |
1891 | err = qla1280_load_firmware_pio(ha); | |
1892 | else | |
1893 | err = qla1280_load_firmware_dma(ha); | |
1894 | if (err) | |
1895 | goto out; | |
1896 | err = qla1280_start_firmware(ha); | |
1897 | out: | |
1898 | return err; | |
1899 | } | |
1900 | ||
1901 | /* | |
1902 | * Initialize rings | |
1903 | * | |
1904 | * Input: | |
1905 | * ha = adapter block pointer. | |
1906 | * ha->request_ring = request ring virtual address | |
1907 | * ha->response_ring = response ring virtual address | |
1908 | * ha->request_dma = request ring physical address | |
1909 | * ha->response_dma = response ring physical address | |
1910 | * | |
1911 | * Returns: | |
1912 | * 0 = success. | |
1913 | */ | |
1914 | static int | |
1915 | qla1280_init_rings(struct scsi_qla_host *ha) | |
1916 | { | |
1917 | uint16_t mb[MAILBOX_REGISTER_COUNT]; | |
1918 | int status = 0; | |
1919 | ||
1920 | ENTER("qla1280_init_rings"); | |
1921 | ||
1922 | /* Clear outstanding commands array. */ | |
1923 | memset(ha->outstanding_cmds, 0, | |
1924 | sizeof(struct srb *) * MAX_OUTSTANDING_COMMANDS); | |
1925 | ||
1926 | /* Initialize request queue. */ | |
1927 | ha->request_ring_ptr = ha->request_ring; | |
1928 | ha->req_ring_index = 0; | |
1929 | ha->req_q_cnt = REQUEST_ENTRY_CNT; | |
1930 | /* mb[0] = MBC_INIT_REQUEST_QUEUE; */ | |
1931 | mb[0] = MBC_INIT_REQUEST_QUEUE_A64; | |
1932 | mb[1] = REQUEST_ENTRY_CNT; | |
1933 | mb[3] = ha->request_dma & 0xffff; | |
1934 | mb[2] = (ha->request_dma >> 16) & 0xffff; | |
1935 | mb[4] = 0; | |
1936 | mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff; | |
1937 | mb[6] = pci_dma_hi32(ha->request_dma) >> 16; | |
1938 | if (!(status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_4 | | |
1939 | BIT_3 | BIT_2 | BIT_1 | BIT_0, | |
1940 | &mb[0]))) { | |
1941 | /* Initialize response queue. */ | |
1942 | ha->response_ring_ptr = ha->response_ring; | |
1943 | ha->rsp_ring_index = 0; | |
1944 | /* mb[0] = MBC_INIT_RESPONSE_QUEUE; */ | |
1945 | mb[0] = MBC_INIT_RESPONSE_QUEUE_A64; | |
1946 | mb[1] = RESPONSE_ENTRY_CNT; | |
1947 | mb[3] = ha->response_dma & 0xffff; | |
1948 | mb[2] = (ha->response_dma >> 16) & 0xffff; | |
1949 | mb[5] = 0; | |
1950 | mb[7] = pci_dma_hi32(ha->response_dma) & 0xffff; | |
1951 | mb[6] = pci_dma_hi32(ha->response_dma) >> 16; | |
1952 | status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_5 | | |
1953 | BIT_3 | BIT_2 | BIT_1 | BIT_0, | |
1954 | &mb[0]); | |
1955 | } | |
1956 | ||
1957 | if (status) | |
1958 | dprintk(2, "qla1280_init_rings: **** FAILED ****\n"); | |
1959 | ||
1960 | LEAVE("qla1280_init_rings"); | |
1961 | return status; | |
1962 | } | |
1963 | ||
1964 | static void | |
1965 | qla1280_print_settings(struct nvram *nv) | |
1966 | { | |
1967 | dprintk(1, "qla1280 : initiator scsi id bus[0]=%d\n", | |
1968 | nv->bus[0].config_1.initiator_id); | |
1969 | dprintk(1, "qla1280 : initiator scsi id bus[1]=%d\n", | |
1970 | nv->bus[1].config_1.initiator_id); | |
1971 | ||
1972 | dprintk(1, "qla1280 : bus reset delay[0]=%d\n", | |
1973 | nv->bus[0].bus_reset_delay); | |
1974 | dprintk(1, "qla1280 : bus reset delay[1]=%d\n", | |
1975 | nv->bus[1].bus_reset_delay); | |
1976 | ||
1977 | dprintk(1, "qla1280 : retry count[0]=%d\n", nv->bus[0].retry_count); | |
1978 | dprintk(1, "qla1280 : retry delay[0]=%d\n", nv->bus[0].retry_delay); | |
1979 | dprintk(1, "qla1280 : retry count[1]=%d\n", nv->bus[1].retry_count); | |
1980 | dprintk(1, "qla1280 : retry delay[1]=%d\n", nv->bus[1].retry_delay); | |
1981 | ||
1982 | dprintk(1, "qla1280 : async data setup time[0]=%d\n", | |
1983 | nv->bus[0].config_2.async_data_setup_time); | |
1984 | dprintk(1, "qla1280 : async data setup time[1]=%d\n", | |
1985 | nv->bus[1].config_2.async_data_setup_time); | |
1986 | ||
1987 | dprintk(1, "qla1280 : req/ack active negation[0]=%d\n", | |
1988 | nv->bus[0].config_2.req_ack_active_negation); | |
1989 | dprintk(1, "qla1280 : req/ack active negation[1]=%d\n", | |
1990 | nv->bus[1].config_2.req_ack_active_negation); | |
1991 | ||
1992 | dprintk(1, "qla1280 : data line active negation[0]=%d\n", | |
1993 | nv->bus[0].config_2.data_line_active_negation); | |
1994 | dprintk(1, "qla1280 : data line active negation[1]=%d\n", | |
1995 | nv->bus[1].config_2.data_line_active_negation); | |
1996 | ||
1997 | dprintk(1, "qla1280 : disable loading risc code=%d\n", | |
1998 | nv->cntr_flags_1.disable_loading_risc_code); | |
1999 | ||
2000 | dprintk(1, "qla1280 : enable 64bit addressing=%d\n", | |
2001 | nv->cntr_flags_1.enable_64bit_addressing); | |
2002 | ||
2003 | dprintk(1, "qla1280 : selection timeout limit[0]=%d\n", | |
2004 | nv->bus[0].selection_timeout); | |
2005 | dprintk(1, "qla1280 : selection timeout limit[1]=%d\n", | |
2006 | nv->bus[1].selection_timeout); | |
2007 | ||
2008 | dprintk(1, "qla1280 : max queue depth[0]=%d\n", | |
2009 | nv->bus[0].max_queue_depth); | |
2010 | dprintk(1, "qla1280 : max queue depth[1]=%d\n", | |
2011 | nv->bus[1].max_queue_depth); | |
2012 | } | |
2013 | ||
2014 | static void | |
2015 | qla1280_set_target_defaults(struct scsi_qla_host *ha, int bus, int target) | |
2016 | { | |
2017 | struct nvram *nv = &ha->nvram; | |
2018 | ||
2019 | nv->bus[bus].target[target].parameter.renegotiate_on_error = 1; | |
2020 | nv->bus[bus].target[target].parameter.auto_request_sense = 1; | |
2021 | nv->bus[bus].target[target].parameter.tag_queuing = 1; | |
2022 | nv->bus[bus].target[target].parameter.enable_sync = 1; | |
2023 | #if 1 /* Some SCSI Processors do not seem to like this */ | |
2024 | nv->bus[bus].target[target].parameter.enable_wide = 1; | |
2025 | #endif | |
2026 | nv->bus[bus].target[target].execution_throttle = | |
2027 | nv->bus[bus].max_queue_depth - 1; | |
2028 | nv->bus[bus].target[target].parameter.parity_checking = 1; | |
2029 | nv->bus[bus].target[target].parameter.disconnect_allowed = 1; | |
2030 | ||
2031 | if (IS_ISP1x160(ha)) { | |
2032 | nv->bus[bus].target[target].flags.flags1x160.device_enable = 1; | |
2033 | nv->bus[bus].target[target].flags.flags1x160.sync_offset = 0x0e; | |
2034 | nv->bus[bus].target[target].sync_period = 9; | |
2035 | nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 1; | |
2036 | nv->bus[bus].target[target].ppr_1x160.flags.ppr_options = 2; | |
2037 | nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width = 1; | |
2038 | } else { | |
2039 | nv->bus[bus].target[target].flags.flags1x80.device_enable = 1; | |
2040 | nv->bus[bus].target[target].flags.flags1x80.sync_offset = 12; | |
2041 | nv->bus[bus].target[target].sync_period = 10; | |
2042 | } | |
2043 | } | |
2044 | ||
2045 | static void | |
2046 | qla1280_set_defaults(struct scsi_qla_host *ha) | |
2047 | { | |
2048 | struct nvram *nv = &ha->nvram; | |
2049 | int bus, target; | |
2050 | ||
2051 | dprintk(1, "Using defaults for NVRAM: \n"); | |
2052 | memset(nv, 0, sizeof(struct nvram)); | |
2053 | ||
2054 | /* nv->cntr_flags_1.disable_loading_risc_code = 1; */ | |
2055 | nv->firmware_feature.f.enable_fast_posting = 1; | |
2056 | nv->firmware_feature.f.disable_synchronous_backoff = 1; | |
2057 | nv->termination.scsi_bus_0_control = 3; | |
2058 | nv->termination.scsi_bus_1_control = 3; | |
2059 | nv->termination.auto_term_support = 1; | |
2060 | ||
2061 | /* | |
2062 | * Set default FIFO magic - What appropriate values would be here | |
2063 | * is unknown. This is what I have found testing with 12160s. | |
2064 | * | |
2065 | * Now, I would love the magic decoder ring for this one, the | |
2066 | * header file provided by QLogic seems to be bogus or incomplete | |
2067 | * at best. | |
2068 | */ | |
2069 | nv->isp_config.burst_enable = 1; | |
2070 | if (IS_ISP1040(ha)) | |
2071 | nv->isp_config.fifo_threshold |= 3; | |
2072 | else | |
2073 | nv->isp_config.fifo_threshold |= 4; | |
2074 | ||
2075 | if (IS_ISP1x160(ha)) | |
2076 | nv->isp_parameter = 0x01; /* fast memory enable */ | |
2077 | ||
2078 | for (bus = 0; bus < MAX_BUSES; bus++) { | |
2079 | nv->bus[bus].config_1.initiator_id = 7; | |
2080 | nv->bus[bus].config_2.req_ack_active_negation = 1; | |
2081 | nv->bus[bus].config_2.data_line_active_negation = 1; | |
2082 | nv->bus[bus].selection_timeout = 250; | |
2083 | nv->bus[bus].max_queue_depth = 32; | |
2084 | ||
2085 | if (IS_ISP1040(ha)) { | |
2086 | nv->bus[bus].bus_reset_delay = 3; | |
2087 | nv->bus[bus].config_2.async_data_setup_time = 6; | |
2088 | nv->bus[bus].retry_delay = 1; | |
2089 | } else { | |
2090 | nv->bus[bus].bus_reset_delay = 5; | |
2091 | nv->bus[bus].config_2.async_data_setup_time = 8; | |
2092 | } | |
2093 | ||
2094 | for (target = 0; target < MAX_TARGETS; target++) | |
2095 | qla1280_set_target_defaults(ha, bus, target); | |
2096 | } | |
2097 | } | |
2098 | ||
2099 | static int | |
2100 | qla1280_config_target(struct scsi_qla_host *ha, int bus, int target) | |
2101 | { | |
2102 | struct nvram *nv = &ha->nvram; | |
2103 | uint16_t mb[MAILBOX_REGISTER_COUNT]; | |
2104 | int status, lun; | |
2105 | uint16_t flag; | |
2106 | ||
2107 | /* Set Target Parameters. */ | |
2108 | mb[0] = MBC_SET_TARGET_PARAMETERS; | |
2109 | mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8); | |
2110 | ||
2111 | /* | |
2112 | * Do not enable sync and ppr for the initial INQUIRY run. We | |
2113 | * enable this later if we determine the target actually | |
2114 | * supports it. | |
2115 | */ | |
2116 | mb[2] = (TP_RENEGOTIATE | TP_AUTO_REQUEST_SENSE | TP_TAGGED_QUEUE | |
2117 | | TP_WIDE | TP_PARITY | TP_DISCONNECT); | |
2118 | ||
2119 | if (IS_ISP1x160(ha)) | |
2120 | mb[3] = nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8; | |
2121 | else | |
2122 | mb[3] = nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8; | |
2123 | mb[3] |= nv->bus[bus].target[target].sync_period; | |
2124 | status = qla1280_mailbox_command(ha, 0x0f, mb); | |
2125 | ||
2126 | /* Save Tag queuing enable flag. */ | |
2127 | flag = (BIT_0 << target); | |
2128 | if (nv->bus[bus].target[target].parameter.tag_queuing) | |
2129 | ha->bus_settings[bus].qtag_enables |= flag; | |
2130 | ||
2131 | /* Save Device enable flag. */ | |
2132 | if (IS_ISP1x160(ha)) { | |
2133 | if (nv->bus[bus].target[target].flags.flags1x160.device_enable) | |
2134 | ha->bus_settings[bus].device_enables |= flag; | |
2135 | ha->bus_settings[bus].lun_disables |= 0; | |
2136 | } else { | |
2137 | if (nv->bus[bus].target[target].flags.flags1x80.device_enable) | |
2138 | ha->bus_settings[bus].device_enables |= flag; | |
2139 | /* Save LUN disable flag. */ | |
2140 | if (nv->bus[bus].target[target].flags.flags1x80.lun_disable) | |
2141 | ha->bus_settings[bus].lun_disables |= flag; | |
2142 | } | |
2143 | ||
2144 | /* Set Device Queue Parameters. */ | |
2145 | for (lun = 0; lun < MAX_LUNS; lun++) { | |
2146 | mb[0] = MBC_SET_DEVICE_QUEUE; | |
2147 | mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8); | |
2148 | mb[1] |= lun; | |
2149 | mb[2] = nv->bus[bus].max_queue_depth; | |
2150 | mb[3] = nv->bus[bus].target[target].execution_throttle; | |
2151 | status |= qla1280_mailbox_command(ha, 0x0f, mb); | |
2152 | } | |
2153 | ||
2154 | return status; | |
2155 | } | |
2156 | ||
2157 | static int | |
2158 | qla1280_config_bus(struct scsi_qla_host *ha, int bus) | |
2159 | { | |
2160 | struct nvram *nv = &ha->nvram; | |
2161 | uint16_t mb[MAILBOX_REGISTER_COUNT]; | |
2162 | int target, status; | |
2163 | ||
2164 | /* SCSI Reset Disable. */ | |
2165 | ha->bus_settings[bus].disable_scsi_reset = | |
2166 | nv->bus[bus].config_1.scsi_reset_disable; | |
2167 | ||
2168 | /* Initiator ID. */ | |
2169 | ha->bus_settings[bus].id = nv->bus[bus].config_1.initiator_id; | |
2170 | mb[0] = MBC_SET_INITIATOR_ID; | |
2171 | mb[1] = bus ? ha->bus_settings[bus].id | BIT_7 : | |
2172 | ha->bus_settings[bus].id; | |
2173 | status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]); | |
2174 | ||
2175 | /* Reset Delay. */ | |
2176 | ha->bus_settings[bus].bus_reset_delay = | |
2177 | nv->bus[bus].bus_reset_delay; | |
2178 | ||
2179 | /* Command queue depth per device. */ | |
2180 | ha->bus_settings[bus].hiwat = nv->bus[bus].max_queue_depth - 1; | |
2181 | ||
2182 | /* Set target parameters. */ | |
2183 | for (target = 0; target < MAX_TARGETS; target++) | |
2184 | status |= qla1280_config_target(ha, bus, target); | |
2185 | ||
2186 | return status; | |
2187 | } | |
2188 | ||
2189 | static int | |
2190 | qla1280_nvram_config(struct scsi_qla_host *ha) | |
2191 | { | |
2192 | struct device_reg __iomem *reg = ha->iobase; | |
2193 | struct nvram *nv = &ha->nvram; | |
2194 | int bus, target, status = 0; | |
2195 | uint16_t mb[MAILBOX_REGISTER_COUNT]; | |
2196 | ||
2197 | ENTER("qla1280_nvram_config"); | |
2198 | ||
2199 | if (ha->nvram_valid) { | |
2200 | /* Always force AUTO sense for LINUX SCSI */ | |
2201 | for (bus = 0; bus < MAX_BUSES; bus++) | |
2202 | for (target = 0; target < MAX_TARGETS; target++) { | |
2203 | nv->bus[bus].target[target].parameter. | |
2204 | auto_request_sense = 1; | |
2205 | } | |
2206 | } else { | |
2207 | qla1280_set_defaults(ha); | |
2208 | } | |
2209 | ||
2210 | qla1280_print_settings(nv); | |
2211 | ||
2212 | /* Disable RISC load of firmware. */ | |
2213 | ha->flags.disable_risc_code_load = | |
2214 | nv->cntr_flags_1.disable_loading_risc_code; | |
2215 | ||
2216 | if (IS_ISP1040(ha)) { | |
2217 | uint16_t hwrev, cfg1, cdma_conf, ddma_conf; | |
2218 | ||
2219 | hwrev = RD_REG_WORD(®->cfg_0) & ISP_CFG0_HWMSK; | |
2220 | ||
2221 | cfg1 = RD_REG_WORD(®->cfg_1) & ~(BIT_4 | BIT_5 | BIT_6); | |
2222 | cdma_conf = RD_REG_WORD(®->cdma_cfg); | |
2223 | ddma_conf = RD_REG_WORD(®->ddma_cfg); | |
2224 | ||
2225 | /* Busted fifo, says mjacob. */ | |
2226 | if (hwrev != ISP_CFG0_1040A) | |
2227 | cfg1 |= nv->isp_config.fifo_threshold << 4; | |
2228 | ||
2229 | cfg1 |= nv->isp_config.burst_enable << 2; | |
2230 | WRT_REG_WORD(®->cfg_1, cfg1); | |
2231 | ||
2232 | WRT_REG_WORD(®->cdma_cfg, cdma_conf | CDMA_CONF_BENAB); | |
2233 | WRT_REG_WORD(®->ddma_cfg, cdma_conf | DDMA_CONF_BENAB); | |
2234 | } else { | |
2235 | uint16_t cfg1, term; | |
2236 | ||
2237 | /* Set ISP hardware DMA burst */ | |
2238 | cfg1 = nv->isp_config.fifo_threshold << 4; | |
2239 | cfg1 |= nv->isp_config.burst_enable << 2; | |
2240 | /* Enable DMA arbitration on dual channel controllers */ | |
2241 | if (ha->ports > 1) | |
2242 | cfg1 |= BIT_13; | |
2243 | WRT_REG_WORD(®->cfg_1, cfg1); | |
2244 | ||
2245 | /* Set SCSI termination. */ | |
2246 | WRT_REG_WORD(®->gpio_enable, | |
2247 | BIT_7 | BIT_3 | BIT_2 | BIT_1 | BIT_0); | |
2248 | term = nv->termination.scsi_bus_1_control; | |
2249 | term |= nv->termination.scsi_bus_0_control << 2; | |
2250 | term |= nv->termination.auto_term_support << 7; | |
2251 | RD_REG_WORD(®->id_l); /* Flush PCI write */ | |
2252 | WRT_REG_WORD(®->gpio_data, term); | |
2253 | } | |
2254 | RD_REG_WORD(®->id_l); /* Flush PCI write */ | |
2255 | ||
2256 | /* ISP parameter word. */ | |
2257 | mb[0] = MBC_SET_SYSTEM_PARAMETER; | |
2258 | mb[1] = nv->isp_parameter; | |
2259 | status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]); | |
2260 | ||
2261 | if (IS_ISP1x40(ha)) { | |
2262 | /* clock rate - for qla1240 and older, only */ | |
2263 | mb[0] = MBC_SET_CLOCK_RATE; | |
2264 | mb[1] = 40; | |
2265 | status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb); | |
2266 | } | |
2267 | ||
2268 | /* Firmware feature word. */ | |
2269 | mb[0] = MBC_SET_FIRMWARE_FEATURES; | |
2270 | mb[1] = nv->firmware_feature.f.enable_fast_posting; | |
2271 | mb[1] |= nv->firmware_feature.f.report_lvd_bus_transition << 1; | |
2272 | mb[1] |= nv->firmware_feature.f.disable_synchronous_backoff << 5; | |
2273 | #if defined(CONFIG_IA64_GENERIC) || defined (CONFIG_IA64_SGI_SN2) | |
2274 | if (ia64_platform_is("sn2")) { | |
2275 | printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA " | |
2276 | "workaround\n", ha->host_no); | |
2277 | mb[1] |= nv->firmware_feature.f.unused_9 << 9; /* XXX */ | |
2278 | } | |
2279 | #endif | |
2280 | status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb); | |
2281 | ||
2282 | /* Retry count and delay. */ | |
2283 | mb[0] = MBC_SET_RETRY_COUNT; | |
2284 | mb[1] = nv->bus[0].retry_count; | |
2285 | mb[2] = nv->bus[0].retry_delay; | |
2286 | mb[6] = nv->bus[1].retry_count; | |
2287 | mb[7] = nv->bus[1].retry_delay; | |
2288 | status |= qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_2 | | |
2289 | BIT_1 | BIT_0, &mb[0]); | |
2290 | ||
2291 | /* ASYNC data setup time. */ | |
2292 | mb[0] = MBC_SET_ASYNC_DATA_SETUP; | |
2293 | mb[1] = nv->bus[0].config_2.async_data_setup_time; | |
2294 | mb[2] = nv->bus[1].config_2.async_data_setup_time; | |
2295 | status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]); | |
2296 | ||
2297 | /* Active negation states. */ | |
2298 | mb[0] = MBC_SET_ACTIVE_NEGATION; | |
2299 | mb[1] = 0; | |
2300 | if (nv->bus[0].config_2.req_ack_active_negation) | |
2301 | mb[1] |= BIT_5; | |
2302 | if (nv->bus[0].config_2.data_line_active_negation) | |
2303 | mb[1] |= BIT_4; | |
2304 | mb[2] = 0; | |
2305 | if (nv->bus[1].config_2.req_ack_active_negation) | |
2306 | mb[2] |= BIT_5; | |
2307 | if (nv->bus[1].config_2.data_line_active_negation) | |
2308 | mb[2] |= BIT_4; | |
2309 | status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb); | |
2310 | ||
2311 | mb[0] = MBC_SET_DATA_OVERRUN_RECOVERY; | |
2312 | mb[1] = 2; /* Reset SCSI bus and return all outstanding IO */ | |
2313 | status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb); | |
2314 | ||
2315 | /* thingy */ | |
2316 | mb[0] = MBC_SET_PCI_CONTROL; | |
2317 | mb[1] = BIT_1; /* Data DMA Channel Burst Enable */ | |
2318 | mb[2] = BIT_1; /* Command DMA Channel Burst Enable */ | |
2319 | status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb); | |
2320 | ||
2321 | mb[0] = MBC_SET_TAG_AGE_LIMIT; | |
2322 | mb[1] = 8; | |
2323 | status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb); | |
2324 | ||
2325 | /* Selection timeout. */ | |
2326 | mb[0] = MBC_SET_SELECTION_TIMEOUT; | |
2327 | mb[1] = nv->bus[0].selection_timeout; | |
2328 | mb[2] = nv->bus[1].selection_timeout; | |
2329 | status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb); | |
2330 | ||
2331 | for (bus = 0; bus < ha->ports; bus++) | |
2332 | status |= qla1280_config_bus(ha, bus); | |
2333 | ||
2334 | if (status) | |
2335 | dprintk(2, "qla1280_nvram_config: **** FAILED ****\n"); | |
2336 | ||
2337 | LEAVE("qla1280_nvram_config"); | |
2338 | return status; | |
2339 | } | |
2340 | ||
2341 | /* | |
2342 | * Get NVRAM data word | |
2343 | * Calculates word position in NVRAM and calls request routine to | |
2344 | * get the word from NVRAM. | |
2345 | * | |
2346 | * Input: | |
2347 | * ha = adapter block pointer. | |
2348 | * address = NVRAM word address. | |
2349 | * | |
2350 | * Returns: | |
2351 | * data word. | |
2352 | */ | |
2353 | static uint16_t | |
2354 | qla1280_get_nvram_word(struct scsi_qla_host *ha, uint32_t address) | |
2355 | { | |
2356 | uint32_t nv_cmd; | |
2357 | uint16_t data; | |
2358 | ||
2359 | nv_cmd = address << 16; | |
2360 | nv_cmd |= NV_READ_OP; | |
2361 | ||
2362 | data = le16_to_cpu(qla1280_nvram_request(ha, nv_cmd)); | |
2363 | ||
2364 | dprintk(8, "qla1280_get_nvram_word: exiting normally NVRAM data = " | |
2365 | "0x%x", data); | |
2366 | ||
2367 | return data; | |
2368 | } | |
2369 | ||
2370 | /* | |
2371 | * NVRAM request | |
2372 | * Sends read command to NVRAM and gets data from NVRAM. | |
2373 | * | |
2374 | * Input: | |
2375 | * ha = adapter block pointer. | |
2376 | * nv_cmd = Bit 26 = start bit | |
2377 | * Bit 25, 24 = opcode | |
2378 | * Bit 23-16 = address | |
2379 | * Bit 15-0 = write data | |
2380 | * | |
2381 | * Returns: | |
2382 | * data word. | |
2383 | */ | |
2384 | static uint16_t | |
2385 | qla1280_nvram_request(struct scsi_qla_host *ha, uint32_t nv_cmd) | |
2386 | { | |
2387 | struct device_reg __iomem *reg = ha->iobase; | |
2388 | int cnt; | |
2389 | uint16_t data = 0; | |
2390 | uint16_t reg_data; | |
2391 | ||
2392 | /* Send command to NVRAM. */ | |
2393 | ||
2394 | nv_cmd <<= 5; | |
2395 | for (cnt = 0; cnt < 11; cnt++) { | |
2396 | if (nv_cmd & BIT_31) | |
2397 | qla1280_nv_write(ha, NV_DATA_OUT); | |
2398 | else | |
2399 | qla1280_nv_write(ha, 0); | |
2400 | nv_cmd <<= 1; | |
2401 | } | |
2402 | ||
2403 | /* Read data from NVRAM. */ | |
2404 | ||
2405 | for (cnt = 0; cnt < 16; cnt++) { | |
2406 | WRT_REG_WORD(®->nvram, (NV_SELECT | NV_CLOCK)); | |
2407 | RD_REG_WORD(®->id_l); /* Flush PCI write */ | |
2408 | NVRAM_DELAY(); | |
2409 | data <<= 1; | |
2410 | reg_data = RD_REG_WORD(®->nvram); | |
2411 | if (reg_data & NV_DATA_IN) | |
2412 | data |= BIT_0; | |
2413 | WRT_REG_WORD(®->nvram, NV_SELECT); | |
2414 | RD_REG_WORD(®->id_l); /* Flush PCI write */ | |
2415 | NVRAM_DELAY(); | |
2416 | } | |
2417 | ||
2418 | /* Deselect chip. */ | |
2419 | ||
2420 | WRT_REG_WORD(®->nvram, NV_DESELECT); | |
2421 | RD_REG_WORD(®->id_l); /* Flush PCI write */ | |
2422 | NVRAM_DELAY(); | |
2423 | ||
2424 | return data; | |
2425 | } | |
2426 | ||
2427 | static void | |
2428 | qla1280_nv_write(struct scsi_qla_host *ha, uint16_t data) | |
2429 | { | |
2430 | struct device_reg __iomem *reg = ha->iobase; | |
2431 | ||
2432 | WRT_REG_WORD(®->nvram, data | NV_SELECT); | |
2433 | RD_REG_WORD(®->id_l); /* Flush PCI write */ | |
2434 | NVRAM_DELAY(); | |
2435 | WRT_REG_WORD(®->nvram, data | NV_SELECT | NV_CLOCK); | |
2436 | RD_REG_WORD(®->id_l); /* Flush PCI write */ | |
2437 | NVRAM_DELAY(); | |
2438 | WRT_REG_WORD(®->nvram, data | NV_SELECT); | |
2439 | RD_REG_WORD(®->id_l); /* Flush PCI write */ | |
2440 | NVRAM_DELAY(); | |
2441 | } | |
2442 | ||
2443 | /* | |
2444 | * Mailbox Command | |
2445 | * Issue mailbox command and waits for completion. | |
2446 | * | |
2447 | * Input: | |
2448 | * ha = adapter block pointer. | |
2449 | * mr = mailbox registers to load. | |
2450 | * mb = data pointer for mailbox registers. | |
2451 | * | |
2452 | * Output: | |
2453 | * mb[MAILBOX_REGISTER_COUNT] = returned mailbox data. | |
2454 | * | |
2455 | * Returns: | |
2456 | * 0 = success | |
2457 | */ | |
2458 | static int | |
2459 | qla1280_mailbox_command(struct scsi_qla_host *ha, uint8_t mr, uint16_t *mb) | |
2460 | { | |
2461 | struct device_reg __iomem *reg = ha->iobase; | |
2462 | int status = 0; | |
2463 | int cnt; | |
2464 | uint16_t *optr, *iptr; | |
2465 | uint16_t __iomem *mptr; | |
2466 | uint16_t data; | |
2467 | DECLARE_COMPLETION_ONSTACK(wait); | |
2468 | struct timer_list timer; | |
2469 | ||
2470 | ENTER("qla1280_mailbox_command"); | |
2471 | ||
2472 | if (ha->mailbox_wait) { | |
2473 | printk(KERN_ERR "Warning mailbox wait already in use!\n"); | |
2474 | } | |
2475 | ha->mailbox_wait = &wait; | |
2476 | ||
2477 | /* | |
2478 | * We really should start out by verifying that the mailbox is | |
2479 | * available before starting sending the command data | |
2480 | */ | |
2481 | /* Load mailbox registers. */ | |
2482 | mptr = (uint16_t __iomem *) ®->mailbox0; | |
2483 | iptr = mb; | |
2484 | for (cnt = 0; cnt < MAILBOX_REGISTER_COUNT; cnt++) { | |
2485 | if (mr & BIT_0) { | |
2486 | WRT_REG_WORD(mptr, (*iptr)); | |
2487 | } | |
2488 | ||
2489 | mr >>= 1; | |
2490 | mptr++; | |
2491 | iptr++; | |
2492 | } | |
2493 | ||
2494 | /* Issue set host interrupt command. */ | |
2495 | ||
2496 | /* set up a timer just in case we're really jammed */ | |
2497 | init_timer_on_stack(&timer); | |
2498 | timer.expires = jiffies + 20*HZ; | |
2499 | timer.data = (unsigned long)ha; | |
2500 | timer.function = qla1280_mailbox_timeout; | |
2501 | add_timer(&timer); | |
2502 | ||
2503 | spin_unlock_irq(ha->host->host_lock); | |
2504 | WRT_REG_WORD(®->host_cmd, HC_SET_HOST_INT); | |
2505 | data = qla1280_debounce_register(®->istatus); | |
2506 | ||
2507 | wait_for_completion(&wait); | |
2508 | del_timer_sync(&timer); | |
2509 | ||
2510 | spin_lock_irq(ha->host->host_lock); | |
2511 | ||
2512 | ha->mailbox_wait = NULL; | |
2513 | ||
2514 | /* Check for mailbox command timeout. */ | |
2515 | if (ha->mailbox_out[0] != MBS_CMD_CMP) { | |
2516 | printk(KERN_WARNING "qla1280_mailbox_command: Command failed, " | |
2517 | "mailbox0 = 0x%04x, mailbox_out0 = 0x%04x, istatus = " | |
2518 | "0x%04x\n", | |
2519 | mb[0], ha->mailbox_out[0], RD_REG_WORD(®->istatus)); | |
2520 | printk(KERN_WARNING "m0 %04x, m1 %04x, m2 %04x, m3 %04x\n", | |
2521 | RD_REG_WORD(®->mailbox0), RD_REG_WORD(®->mailbox1), | |
2522 | RD_REG_WORD(®->mailbox2), RD_REG_WORD(®->mailbox3)); | |
2523 | printk(KERN_WARNING "m4 %04x, m5 %04x, m6 %04x, m7 %04x\n", | |
2524 | RD_REG_WORD(®->mailbox4), RD_REG_WORD(®->mailbox5), | |
2525 | RD_REG_WORD(®->mailbox6), RD_REG_WORD(®->mailbox7)); | |
2526 | status = 1; | |
2527 | } | |
2528 | ||
2529 | /* Load return mailbox registers. */ | |
2530 | optr = mb; | |
2531 | iptr = (uint16_t *) &ha->mailbox_out[0]; | |
2532 | mr = MAILBOX_REGISTER_COUNT; | |
2533 | memcpy(optr, iptr, MAILBOX_REGISTER_COUNT * sizeof(uint16_t)); | |
2534 | ||
2535 | if (ha->flags.reset_marker) | |
2536 | qla1280_rst_aen(ha); | |
2537 | ||
2538 | if (status) | |
2539 | dprintk(2, "qla1280_mailbox_command: **** FAILED, mailbox0 = " | |
2540 | "0x%x ****\n", mb[0]); | |
2541 | ||
2542 | LEAVE("qla1280_mailbox_command"); | |
2543 | return status; | |
2544 | } | |
2545 | ||
2546 | /* | |
2547 | * qla1280_poll | |
2548 | * Polls ISP for interrupts. | |
2549 | * | |
2550 | * Input: | |
2551 | * ha = adapter block pointer. | |
2552 | */ | |
2553 | static void | |
2554 | qla1280_poll(struct scsi_qla_host *ha) | |
2555 | { | |
2556 | struct device_reg __iomem *reg = ha->iobase; | |
2557 | uint16_t data; | |
2558 | LIST_HEAD(done_q); | |
2559 | ||
2560 | /* ENTER("qla1280_poll"); */ | |
2561 | ||
2562 | /* Check for pending interrupts. */ | |
2563 | data = RD_REG_WORD(®->istatus); | |
2564 | if (data & RISC_INT) | |
2565 | qla1280_isr(ha, &done_q); | |
2566 | ||
2567 | if (!ha->mailbox_wait) { | |
2568 | if (ha->flags.reset_marker) | |
2569 | qla1280_rst_aen(ha); | |
2570 | } | |
2571 | ||
2572 | if (!list_empty(&done_q)) | |
2573 | qla1280_done(ha); | |
2574 | ||
2575 | /* LEAVE("qla1280_poll"); */ | |
2576 | } | |
2577 | ||
2578 | /* | |
2579 | * qla1280_bus_reset | |
2580 | * Issue SCSI bus reset. | |
2581 | * | |
2582 | * Input: | |
2583 | * ha = adapter block pointer. | |
2584 | * bus = SCSI bus number. | |
2585 | * | |
2586 | * Returns: | |
2587 | * 0 = success | |
2588 | */ | |
2589 | static int | |
2590 | qla1280_bus_reset(struct scsi_qla_host *ha, int bus) | |
2591 | { | |
2592 | uint16_t mb[MAILBOX_REGISTER_COUNT]; | |
2593 | uint16_t reset_delay; | |
2594 | int status; | |
2595 | ||
2596 | dprintk(3, "qla1280_bus_reset: entered\n"); | |
2597 | ||
2598 | if (qla1280_verbose) | |
2599 | printk(KERN_INFO "scsi(%li:%i): Resetting SCSI BUS\n", | |
2600 | ha->host_no, bus); | |
2601 | ||
2602 | reset_delay = ha->bus_settings[bus].bus_reset_delay; | |
2603 | mb[0] = MBC_BUS_RESET; | |
2604 | mb[1] = reset_delay; | |
2605 | mb[2] = (uint16_t) bus; | |
2606 | status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]); | |
2607 | ||
2608 | if (status) { | |
2609 | if (ha->bus_settings[bus].failed_reset_count > 2) | |
2610 | ha->bus_settings[bus].scsi_bus_dead = 1; | |
2611 | ha->bus_settings[bus].failed_reset_count++; | |
2612 | } else { | |
2613 | spin_unlock_irq(ha->host->host_lock); | |
2614 | ssleep(reset_delay); | |
2615 | spin_lock_irq(ha->host->host_lock); | |
2616 | ||
2617 | ha->bus_settings[bus].scsi_bus_dead = 0; | |
2618 | ha->bus_settings[bus].failed_reset_count = 0; | |
2619 | ha->bus_settings[bus].reset_marker = 0; | |
2620 | /* Issue marker command. */ | |
2621 | qla1280_marker(ha, bus, 0, 0, MK_SYNC_ALL); | |
2622 | } | |
2623 | ||
2624 | /* | |
2625 | * We should probably call qla1280_set_target_parameters() | |
2626 | * here as well for all devices on the bus. | |
2627 | */ | |
2628 | ||
2629 | if (status) | |
2630 | dprintk(2, "qla1280_bus_reset: **** FAILED ****\n"); | |
2631 | else | |
2632 | dprintk(3, "qla1280_bus_reset: exiting normally\n"); | |
2633 | ||
2634 | return status; | |
2635 | } | |
2636 | ||
2637 | /* | |
2638 | * qla1280_device_reset | |
2639 | * Issue bus device reset message to the target. | |
2640 | * | |
2641 | * Input: | |
2642 | * ha = adapter block pointer. | |
2643 | * bus = SCSI BUS number. | |
2644 | * target = SCSI ID. | |
2645 | * | |
2646 | * Returns: | |
2647 | * 0 = success | |
2648 | */ | |
2649 | static int | |
2650 | qla1280_device_reset(struct scsi_qla_host *ha, int bus, int target) | |
2651 | { | |
2652 | uint16_t mb[MAILBOX_REGISTER_COUNT]; | |
2653 | int status; | |
2654 | ||
2655 | ENTER("qla1280_device_reset"); | |
2656 | ||
2657 | mb[0] = MBC_ABORT_TARGET; | |
2658 | mb[1] = (bus ? (target | BIT_7) : target) << 8; | |
2659 | mb[2] = 1; | |
2660 | status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]); | |
2661 | ||
2662 | /* Issue marker command. */ | |
2663 | qla1280_marker(ha, bus, target, 0, MK_SYNC_ID); | |
2664 | ||
2665 | if (status) | |
2666 | dprintk(2, "qla1280_device_reset: **** FAILED ****\n"); | |
2667 | ||
2668 | LEAVE("qla1280_device_reset"); | |
2669 | return status; | |
2670 | } | |
2671 | ||
2672 | /* | |
2673 | * qla1280_abort_command | |
2674 | * Abort command aborts a specified IOCB. | |
2675 | * | |
2676 | * Input: | |
2677 | * ha = adapter block pointer. | |
2678 | * sp = SB structure pointer. | |
2679 | * | |
2680 | * Returns: | |
2681 | * 0 = success | |
2682 | */ | |
2683 | static int | |
2684 | qla1280_abort_command(struct scsi_qla_host *ha, struct srb * sp, int handle) | |
2685 | { | |
2686 | uint16_t mb[MAILBOX_REGISTER_COUNT]; | |
2687 | unsigned int bus, target, lun; | |
2688 | int status; | |
2689 | ||
2690 | ENTER("qla1280_abort_command"); | |
2691 | ||
2692 | bus = SCSI_BUS_32(sp->cmd); | |
2693 | target = SCSI_TCN_32(sp->cmd); | |
2694 | lun = SCSI_LUN_32(sp->cmd); | |
2695 | ||
2696 | sp->flags |= SRB_ABORT_PENDING; | |
2697 | ||
2698 | mb[0] = MBC_ABORT_COMMAND; | |
2699 | mb[1] = (bus ? target | BIT_7 : target) << 8 | lun; | |
2700 | mb[2] = handle >> 16; | |
2701 | mb[3] = handle & 0xffff; | |
2702 | status = qla1280_mailbox_command(ha, 0x0f, &mb[0]); | |
2703 | ||
2704 | if (status) { | |
2705 | dprintk(2, "qla1280_abort_command: **** FAILED ****\n"); | |
2706 | sp->flags &= ~SRB_ABORT_PENDING; | |
2707 | } | |
2708 | ||
2709 | ||
2710 | LEAVE("qla1280_abort_command"); | |
2711 | return status; | |
2712 | } | |
2713 | ||
2714 | /* | |
2715 | * qla1280_reset_adapter | |
2716 | * Reset adapter. | |
2717 | * | |
2718 | * Input: | |
2719 | * ha = adapter block pointer. | |
2720 | */ | |
2721 | static void | |
2722 | qla1280_reset_adapter(struct scsi_qla_host *ha) | |
2723 | { | |
2724 | struct device_reg __iomem *reg = ha->iobase; | |
2725 | ||
2726 | ENTER("qla1280_reset_adapter"); | |
2727 | ||
2728 | /* Disable ISP chip */ | |
2729 | ha->flags.online = 0; | |
2730 | WRT_REG_WORD(®->ictrl, ISP_RESET); | |
2731 | WRT_REG_WORD(®->host_cmd, | |
2732 | HC_RESET_RISC | HC_RELEASE_RISC | HC_DISABLE_BIOS); | |
2733 | RD_REG_WORD(®->id_l); /* Flush PCI write */ | |
2734 | ||
2735 | LEAVE("qla1280_reset_adapter"); | |
2736 | } | |
2737 | ||
2738 | /* | |
2739 | * Issue marker command. | |
2740 | * Function issues marker IOCB. | |
2741 | * | |
2742 | * Input: | |
2743 | * ha = adapter block pointer. | |
2744 | * bus = SCSI BUS number | |
2745 | * id = SCSI ID | |
2746 | * lun = SCSI LUN | |
2747 | * type = marker modifier | |
2748 | */ | |
2749 | static void | |
2750 | qla1280_marker(struct scsi_qla_host *ha, int bus, int id, int lun, u8 type) | |
2751 | { | |
2752 | struct mrk_entry *pkt; | |
2753 | ||
2754 | ENTER("qla1280_marker"); | |
2755 | ||
2756 | /* Get request packet. */ | |
2757 | if ((pkt = (struct mrk_entry *) qla1280_req_pkt(ha))) { | |
2758 | pkt->entry_type = MARKER_TYPE; | |
2759 | pkt->lun = (uint8_t) lun; | |
2760 | pkt->target = (uint8_t) (bus ? (id | BIT_7) : id); | |
2761 | pkt->modifier = type; | |
2762 | pkt->entry_status = 0; | |
2763 | ||
2764 | /* Issue command to ISP */ | |
2765 | qla1280_isp_cmd(ha); | |
2766 | } | |
2767 | ||
2768 | LEAVE("qla1280_marker"); | |
2769 | } | |
2770 | ||
2771 | ||
2772 | /* | |
2773 | * qla1280_64bit_start_scsi | |
2774 | * The start SCSI is responsible for building request packets on | |
2775 | * request ring and modifying ISP input pointer. | |
2776 | * | |
2777 | * Input: | |
2778 | * ha = adapter block pointer. | |
2779 | * sp = SB structure pointer. | |
2780 | * | |
2781 | * Returns: | |
2782 | * 0 = success, was able to issue command. | |
2783 | */ | |
2784 | #ifdef QLA_64BIT_PTR | |
2785 | static int | |
2786 | qla1280_64bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp) | |
2787 | { | |
2788 | struct device_reg __iomem *reg = ha->iobase; | |
2789 | struct scsi_cmnd *cmd = sp->cmd; | |
2790 | cmd_a64_entry_t *pkt; | |
2791 | __le32 *dword_ptr; | |
2792 | dma_addr_t dma_handle; | |
2793 | int status = 0; | |
2794 | int cnt; | |
2795 | int req_cnt; | |
2796 | int seg_cnt; | |
2797 | u8 dir; | |
2798 | ||
2799 | ENTER("qla1280_64bit_start_scsi:"); | |
2800 | ||
2801 | /* Calculate number of entries and segments required. */ | |
2802 | req_cnt = 1; | |
2803 | seg_cnt = scsi_dma_map(cmd); | |
2804 | if (seg_cnt > 0) { | |
2805 | if (seg_cnt > 2) { | |
2806 | req_cnt += (seg_cnt - 2) / 5; | |
2807 | if ((seg_cnt - 2) % 5) | |
2808 | req_cnt++; | |
2809 | } | |
2810 | } else if (seg_cnt < 0) { | |
2811 | status = 1; | |
2812 | goto out; | |
2813 | } | |
2814 | ||
2815 | if ((req_cnt + 2) >= ha->req_q_cnt) { | |
2816 | /* Calculate number of free request entries. */ | |
2817 | cnt = RD_REG_WORD(®->mailbox4); | |
2818 | if (ha->req_ring_index < cnt) | |
2819 | ha->req_q_cnt = cnt - ha->req_ring_index; | |
2820 | else | |
2821 | ha->req_q_cnt = | |
2822 | REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt); | |
2823 | } | |
2824 | ||
2825 | dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n", | |
2826 | ha->req_q_cnt, seg_cnt); | |
2827 | ||
2828 | /* If room for request in request ring. */ | |
2829 | if ((req_cnt + 2) >= ha->req_q_cnt) { | |
2830 | status = SCSI_MLQUEUE_HOST_BUSY; | |
2831 | dprintk(2, "qla1280_start_scsi: in-ptr=0x%x req_q_cnt=" | |
2832 | "0x%xreq_cnt=0x%x", ha->req_ring_index, ha->req_q_cnt, | |
2833 | req_cnt); | |
2834 | goto out; | |
2835 | } | |
2836 | ||
2837 | /* Check for room in outstanding command list. */ | |
2838 | for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS && | |
2839 | ha->outstanding_cmds[cnt] != NULL; cnt++); | |
2840 | ||
2841 | if (cnt >= MAX_OUTSTANDING_COMMANDS) { | |
2842 | status = SCSI_MLQUEUE_HOST_BUSY; | |
2843 | dprintk(2, "qla1280_start_scsi: NO ROOM IN " | |
2844 | "OUTSTANDING ARRAY, req_q_cnt=0x%x", ha->req_q_cnt); | |
2845 | goto out; | |
2846 | } | |
2847 | ||
2848 | ha->outstanding_cmds[cnt] = sp; | |
2849 | ha->req_q_cnt -= req_cnt; | |
2850 | CMD_HANDLE(sp->cmd) = (unsigned char *)(unsigned long)(cnt + 1); | |
2851 | ||
2852 | dprintk(2, "start: cmd=%p sp=%p CDB=%xm, handle %lx\n", cmd, sp, | |
2853 | cmd->cmnd[0], (long)CMD_HANDLE(sp->cmd)); | |
2854 | dprintk(2, " bus %i, target %i, lun %i\n", | |
2855 | SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd)); | |
2856 | qla1280_dump_buffer(2, cmd->cmnd, MAX_COMMAND_SIZE); | |
2857 | ||
2858 | /* | |
2859 | * Build command packet. | |
2860 | */ | |
2861 | pkt = (cmd_a64_entry_t *) ha->request_ring_ptr; | |
2862 | ||
2863 | pkt->entry_type = COMMAND_A64_TYPE; | |
2864 | pkt->entry_count = (uint8_t) req_cnt; | |
2865 | pkt->sys_define = (uint8_t) ha->req_ring_index; | |
2866 | pkt->entry_status = 0; | |
2867 | pkt->handle = cpu_to_le32(cnt); | |
2868 | ||
2869 | /* Zero out remaining portion of packet. */ | |
2870 | memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8)); | |
2871 | ||
2872 | /* Set ISP command timeout. */ | |
2873 | pkt->timeout = cpu_to_le16(cmd->request->timeout/HZ); | |
2874 | ||
2875 | /* Set device target ID and LUN */ | |
2876 | pkt->lun = SCSI_LUN_32(cmd); | |
2877 | pkt->target = SCSI_BUS_32(cmd) ? | |
2878 | (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd); | |
2879 | ||
2880 | /* Enable simple tag queuing if device supports it. */ | |
2881 | if (cmd->device->simple_tags) | |
2882 | pkt->control_flags |= cpu_to_le16(BIT_3); | |
2883 | ||
2884 | /* Load SCSI command packet. */ | |
2885 | pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd)); | |
2886 | memcpy(pkt->scsi_cdb, CMD_CDBP(cmd), CMD_CDBLEN(cmd)); | |
2887 | /* dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */ | |
2888 | ||
2889 | /* Set transfer direction. */ | |
2890 | dir = qla1280_data_direction(cmd); | |
2891 | pkt->control_flags |= cpu_to_le16(dir); | |
2892 | ||
2893 | /* Set total data segment count. */ | |
2894 | pkt->dseg_count = cpu_to_le16(seg_cnt); | |
2895 | ||
2896 | /* | |
2897 | * Load data segments. | |
2898 | */ | |
2899 | if (seg_cnt) { /* If data transfer. */ | |
2900 | struct scatterlist *sg, *s; | |
2901 | int remseg = seg_cnt; | |
2902 | ||
2903 | sg = scsi_sglist(cmd); | |
2904 | ||
2905 | /* Setup packet address segment pointer. */ | |
2906 | dword_ptr = (u32 *)&pkt->dseg_0_address; | |
2907 | ||
2908 | /* Load command entry data segments. */ | |
2909 | for_each_sg(sg, s, seg_cnt, cnt) { | |
2910 | if (cnt == 2) | |
2911 | break; | |
2912 | ||
2913 | dma_handle = sg_dma_address(s); | |
2914 | #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) | |
2915 | if (ha->flags.use_pci_vchannel) | |
2916 | sn_pci_set_vchan(ha->pdev, | |
2917 | (unsigned long *)&dma_handle, | |
2918 | SCSI_BUS_32(cmd)); | |
2919 | #endif | |
2920 | *dword_ptr++ = | |
2921 | cpu_to_le32(pci_dma_lo32(dma_handle)); | |
2922 | *dword_ptr++ = | |
2923 | cpu_to_le32(pci_dma_hi32(dma_handle)); | |
2924 | *dword_ptr++ = cpu_to_le32(sg_dma_len(s)); | |
2925 | dprintk(3, "S/G Segment phys_addr=%x %x, len=0x%x\n", | |
2926 | cpu_to_le32(pci_dma_hi32(dma_handle)), | |
2927 | cpu_to_le32(pci_dma_lo32(dma_handle)), | |
2928 | cpu_to_le32(sg_dma_len(sg_next(s)))); | |
2929 | remseg--; | |
2930 | } | |
2931 | dprintk(5, "qla1280_64bit_start_scsi: Scatter/gather " | |
2932 | "command packet data - b %i, t %i, l %i \n", | |
2933 | SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), | |
2934 | SCSI_LUN_32(cmd)); | |
2935 | qla1280_dump_buffer(5, (char *)pkt, | |
2936 | REQUEST_ENTRY_SIZE); | |
2937 | ||
2938 | /* | |
2939 | * Build continuation packets. | |
2940 | */ | |
2941 | dprintk(3, "S/G Building Continuation...seg_cnt=0x%x " | |
2942 | "remains\n", seg_cnt); | |
2943 | ||
2944 | while (remseg > 0) { | |
2945 | /* Update sg start */ | |
2946 | sg = s; | |
2947 | /* Adjust ring index. */ | |
2948 | ha->req_ring_index++; | |
2949 | if (ha->req_ring_index == REQUEST_ENTRY_CNT) { | |
2950 | ha->req_ring_index = 0; | |
2951 | ha->request_ring_ptr = | |
2952 | ha->request_ring; | |
2953 | } else | |
2954 | ha->request_ring_ptr++; | |
2955 | ||
2956 | pkt = (cmd_a64_entry_t *)ha->request_ring_ptr; | |
2957 | ||
2958 | /* Zero out packet. */ | |
2959 | memset(pkt, 0, REQUEST_ENTRY_SIZE); | |
2960 | ||
2961 | /* Load packet defaults. */ | |
2962 | ((struct cont_a64_entry *) pkt)->entry_type = | |
2963 | CONTINUE_A64_TYPE; | |
2964 | ((struct cont_a64_entry *) pkt)->entry_count = 1; | |
2965 | ((struct cont_a64_entry *) pkt)->sys_define = | |
2966 | (uint8_t)ha->req_ring_index; | |
2967 | /* Setup packet address segment pointer. */ | |
2968 | dword_ptr = | |
2969 | (u32 *)&((struct cont_a64_entry *) pkt)->dseg_0_address; | |
2970 | ||
2971 | /* Load continuation entry data segments. */ | |
2972 | for_each_sg(sg, s, remseg, cnt) { | |
2973 | if (cnt == 5) | |
2974 | break; | |
2975 | dma_handle = sg_dma_address(s); | |
2976 | #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) | |
2977 | if (ha->flags.use_pci_vchannel) | |
2978 | sn_pci_set_vchan(ha->pdev, | |
2979 | (unsigned long *)&dma_handle, | |
2980 | SCSI_BUS_32(cmd)); | |
2981 | #endif | |
2982 | *dword_ptr++ = | |
2983 | cpu_to_le32(pci_dma_lo32(dma_handle)); | |
2984 | *dword_ptr++ = | |
2985 | cpu_to_le32(pci_dma_hi32(dma_handle)); | |
2986 | *dword_ptr++ = | |
2987 | cpu_to_le32(sg_dma_len(s)); | |
2988 | dprintk(3, "S/G Segment Cont. phys_addr=%x %x, len=0x%x\n", | |
2989 | cpu_to_le32(pci_dma_hi32(dma_handle)), | |
2990 | cpu_to_le32(pci_dma_lo32(dma_handle)), | |
2991 | cpu_to_le32(sg_dma_len(s))); | |
2992 | } | |
2993 | remseg -= cnt; | |
2994 | dprintk(5, "qla1280_64bit_start_scsi: " | |
2995 | "continuation packet data - b %i, t " | |
2996 | "%i, l %i \n", SCSI_BUS_32(cmd), | |
2997 | SCSI_TCN_32(cmd), SCSI_LUN_32(cmd)); | |
2998 | qla1280_dump_buffer(5, (char *)pkt, | |
2999 | REQUEST_ENTRY_SIZE); | |
3000 | } | |
3001 | } else { /* No data transfer */ | |
3002 | dprintk(5, "qla1280_64bit_start_scsi: No data, command " | |
3003 | "packet data - b %i, t %i, l %i \n", | |
3004 | SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd)); | |
3005 | qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE); | |
3006 | } | |
3007 | /* Adjust ring index. */ | |
3008 | ha->req_ring_index++; | |
3009 | if (ha->req_ring_index == REQUEST_ENTRY_CNT) { | |
3010 | ha->req_ring_index = 0; | |
3011 | ha->request_ring_ptr = ha->request_ring; | |
3012 | } else | |
3013 | ha->request_ring_ptr++; | |
3014 | ||
3015 | /* Set chip new ring index. */ | |
3016 | dprintk(2, | |
3017 | "qla1280_64bit_start_scsi: Wakeup RISC for pending command\n"); | |
3018 | sp->flags |= SRB_SENT; | |
3019 | ha->actthreads++; | |
3020 | WRT_REG_WORD(®->mailbox4, ha->req_ring_index); | |
3021 | /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */ | |
3022 | mmiowb(); | |
3023 | ||
3024 | out: | |
3025 | if (status) | |
3026 | dprintk(2, "qla1280_64bit_start_scsi: **** FAILED ****\n"); | |
3027 | else | |
3028 | dprintk(3, "qla1280_64bit_start_scsi: exiting normally\n"); | |
3029 | ||
3030 | return status; | |
3031 | } | |
3032 | #else /* !QLA_64BIT_PTR */ | |
3033 | ||
3034 | /* | |
3035 | * qla1280_32bit_start_scsi | |
3036 | * The start SCSI is responsible for building request packets on | |
3037 | * request ring and modifying ISP input pointer. | |
3038 | * | |
3039 | * The Qlogic firmware interface allows every queue slot to have a SCSI | |
3040 | * command and up to 4 scatter/gather (SG) entries. If we need more | |
3041 | * than 4 SG entries, then continuation entries are used that can | |
3042 | * hold another 7 entries each. The start routine determines if there | |
3043 | * is eought empty slots then build the combination of requests to | |
3044 | * fulfill the OS request. | |
3045 | * | |
3046 | * Input: | |
3047 | * ha = adapter block pointer. | |
3048 | * sp = SCSI Request Block structure pointer. | |
3049 | * | |
3050 | * Returns: | |
3051 | * 0 = success, was able to issue command. | |
3052 | */ | |
3053 | static int | |
3054 | qla1280_32bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp) | |
3055 | { | |
3056 | struct device_reg __iomem *reg = ha->iobase; | |
3057 | struct scsi_cmnd *cmd = sp->cmd; | |
3058 | struct cmd_entry *pkt; | |
3059 | __le32 *dword_ptr; | |
3060 | int status = 0; | |
3061 | int cnt; | |
3062 | int req_cnt; | |
3063 | int seg_cnt; | |
3064 | u8 dir; | |
3065 | ||
3066 | ENTER("qla1280_32bit_start_scsi"); | |
3067 | ||
3068 | dprintk(1, "32bit_start: cmd=%p sp=%p CDB=%x\n", cmd, sp, | |
3069 | cmd->cmnd[0]); | |
3070 | ||
3071 | /* Calculate number of entries and segments required. */ | |
3072 | req_cnt = 1; | |
3073 | seg_cnt = scsi_dma_map(cmd); | |
3074 | if (seg_cnt) { | |
3075 | /* | |
3076 | * if greater than four sg entries then we need to allocate | |
3077 | * continuation entries | |
3078 | */ | |
3079 | if (seg_cnt > 4) { | |
3080 | req_cnt += (seg_cnt - 4) / 7; | |
3081 | if ((seg_cnt - 4) % 7) | |
3082 | req_cnt++; | |
3083 | } | |
3084 | dprintk(3, "S/G Transfer cmd=%p seg_cnt=0x%x, req_cnt=%x\n", | |
3085 | cmd, seg_cnt, req_cnt); | |
3086 | } else if (seg_cnt < 0) { | |
3087 | status = 1; | |
3088 | goto out; | |
3089 | } | |
3090 | ||
3091 | if ((req_cnt + 2) >= ha->req_q_cnt) { | |
3092 | /* Calculate number of free request entries. */ | |
3093 | cnt = RD_REG_WORD(®->mailbox4); | |
3094 | if (ha->req_ring_index < cnt) | |
3095 | ha->req_q_cnt = cnt - ha->req_ring_index; | |
3096 | else | |
3097 | ha->req_q_cnt = | |
3098 | REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt); | |
3099 | } | |
3100 | ||
3101 | dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n", | |
3102 | ha->req_q_cnt, seg_cnt); | |
3103 | /* If room for request in request ring. */ | |
3104 | if ((req_cnt + 2) >= ha->req_q_cnt) { | |
3105 | status = SCSI_MLQUEUE_HOST_BUSY; | |
3106 | dprintk(2, "qla1280_32bit_start_scsi: in-ptr=0x%x, " | |
3107 | "req_q_cnt=0x%x, req_cnt=0x%x", ha->req_ring_index, | |
3108 | ha->req_q_cnt, req_cnt); | |
3109 | goto out; | |
3110 | } | |
3111 | ||
3112 | /* Check for empty slot in outstanding command list. */ | |
3113 | for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS && | |
3114 | (ha->outstanding_cmds[cnt] != 0); cnt++) ; | |
3115 | ||
3116 | if (cnt >= MAX_OUTSTANDING_COMMANDS) { | |
3117 | status = SCSI_MLQUEUE_HOST_BUSY; | |
3118 | dprintk(2, "qla1280_32bit_start_scsi: NO ROOM IN OUTSTANDING " | |
3119 | "ARRAY, req_q_cnt=0x%x\n", ha->req_q_cnt); | |
3120 | goto out; | |
3121 | } | |
3122 | ||
3123 | CMD_HANDLE(sp->cmd) = (unsigned char *) (unsigned long)(cnt + 1); | |
3124 | ha->outstanding_cmds[cnt] = sp; | |
3125 | ha->req_q_cnt -= req_cnt; | |
3126 | ||
3127 | /* | |
3128 | * Build command packet. | |
3129 | */ | |
3130 | pkt = (struct cmd_entry *) ha->request_ring_ptr; | |
3131 | ||
3132 | pkt->entry_type = COMMAND_TYPE; | |
3133 | pkt->entry_count = (uint8_t) req_cnt; | |
3134 | pkt->sys_define = (uint8_t) ha->req_ring_index; | |
3135 | pkt->entry_status = 0; | |
3136 | pkt->handle = cpu_to_le32(cnt); | |
3137 | ||
3138 | /* Zero out remaining portion of packet. */ | |
3139 | memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8)); | |
3140 | ||
3141 | /* Set ISP command timeout. */ | |
3142 | pkt->timeout = cpu_to_le16(cmd->request->timeout/HZ); | |
3143 | ||
3144 | /* Set device target ID and LUN */ | |
3145 | pkt->lun = SCSI_LUN_32(cmd); | |
3146 | pkt->target = SCSI_BUS_32(cmd) ? | |
3147 | (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd); | |
3148 | ||
3149 | /* Enable simple tag queuing if device supports it. */ | |
3150 | if (cmd->device->simple_tags) | |
3151 | pkt->control_flags |= cpu_to_le16(BIT_3); | |
3152 | ||
3153 | /* Load SCSI command packet. */ | |
3154 | pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd)); | |
3155 | memcpy(pkt->scsi_cdb, CMD_CDBP(cmd), CMD_CDBLEN(cmd)); | |
3156 | ||
3157 | /*dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */ | |
3158 | /* Set transfer direction. */ | |
3159 | dir = qla1280_data_direction(cmd); | |
3160 | pkt->control_flags |= cpu_to_le16(dir); | |
3161 | ||
3162 | /* Set total data segment count. */ | |
3163 | pkt->dseg_count = cpu_to_le16(seg_cnt); | |
3164 | ||
3165 | /* | |
3166 | * Load data segments. | |
3167 | */ | |
3168 | if (seg_cnt) { | |
3169 | struct scatterlist *sg, *s; | |
3170 | int remseg = seg_cnt; | |
3171 | ||
3172 | sg = scsi_sglist(cmd); | |
3173 | ||
3174 | /* Setup packet address segment pointer. */ | |
3175 | dword_ptr = &pkt->dseg_0_address; | |
3176 | ||
3177 | dprintk(3, "Building S/G data segments..\n"); | |
3178 | qla1280_dump_buffer(1, (char *)sg, 4 * 16); | |
3179 | ||
3180 | /* Load command entry data segments. */ | |
3181 | for_each_sg(sg, s, seg_cnt, cnt) { | |
3182 | if (cnt == 4) | |
3183 | break; | |
3184 | *dword_ptr++ = | |
3185 | cpu_to_le32(pci_dma_lo32(sg_dma_address(s))); | |
3186 | *dword_ptr++ = cpu_to_le32(sg_dma_len(s)); | |
3187 | dprintk(3, "S/G Segment phys_addr=0x%lx, len=0x%x\n", | |
3188 | (pci_dma_lo32(sg_dma_address(s))), | |
3189 | (sg_dma_len(s))); | |
3190 | remseg--; | |
3191 | } | |
3192 | /* | |
3193 | * Build continuation packets. | |
3194 | */ | |
3195 | dprintk(3, "S/G Building Continuation" | |
3196 | "...seg_cnt=0x%x remains\n", seg_cnt); | |
3197 | while (remseg > 0) { | |
3198 | /* Continue from end point */ | |
3199 | sg = s; | |
3200 | /* Adjust ring index. */ | |
3201 | ha->req_ring_index++; | |
3202 | if (ha->req_ring_index == REQUEST_ENTRY_CNT) { | |
3203 | ha->req_ring_index = 0; | |
3204 | ha->request_ring_ptr = | |
3205 | ha->request_ring; | |
3206 | } else | |
3207 | ha->request_ring_ptr++; | |
3208 | ||
3209 | pkt = (struct cmd_entry *)ha->request_ring_ptr; | |
3210 | ||
3211 | /* Zero out packet. */ | |
3212 | memset(pkt, 0, REQUEST_ENTRY_SIZE); | |
3213 | ||
3214 | /* Load packet defaults. */ | |
3215 | ((struct cont_entry *) pkt)-> | |
3216 | entry_type = CONTINUE_TYPE; | |
3217 | ((struct cont_entry *) pkt)->entry_count = 1; | |
3218 | ||
3219 | ((struct cont_entry *) pkt)->sys_define = | |
3220 | (uint8_t) ha->req_ring_index; | |
3221 | ||
3222 | /* Setup packet address segment pointer. */ | |
3223 | dword_ptr = | |
3224 | &((struct cont_entry *) pkt)->dseg_0_address; | |
3225 | ||
3226 | /* Load continuation entry data segments. */ | |
3227 | for_each_sg(sg, s, remseg, cnt) { | |
3228 | if (cnt == 7) | |
3229 | break; | |
3230 | *dword_ptr++ = | |
3231 | cpu_to_le32(pci_dma_lo32(sg_dma_address(s))); | |
3232 | *dword_ptr++ = | |
3233 | cpu_to_le32(sg_dma_len(s)); | |
3234 | dprintk(1, | |
3235 | "S/G Segment Cont. phys_addr=0x%x, " | |
3236 | "len=0x%x\n", | |
3237 | cpu_to_le32(pci_dma_lo32(sg_dma_address(s))), | |
3238 | cpu_to_le32(sg_dma_len(s))); | |
3239 | } | |
3240 | remseg -= cnt; | |
3241 | dprintk(5, "qla1280_32bit_start_scsi: " | |
3242 | "continuation packet data - " | |
3243 | "scsi(%i:%i:%i)\n", SCSI_BUS_32(cmd), | |
3244 | SCSI_TCN_32(cmd), SCSI_LUN_32(cmd)); | |
3245 | qla1280_dump_buffer(5, (char *)pkt, | |
3246 | REQUEST_ENTRY_SIZE); | |
3247 | } | |
3248 | } else { /* No data transfer at all */ | |
3249 | dprintk(5, "qla1280_32bit_start_scsi: No data, command " | |
3250 | "packet data - \n"); | |
3251 | qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE); | |
3252 | } | |
3253 | dprintk(5, "qla1280_32bit_start_scsi: First IOCB block:\n"); | |
3254 | qla1280_dump_buffer(5, (char *)ha->request_ring_ptr, | |
3255 | REQUEST_ENTRY_SIZE); | |
3256 | ||
3257 | /* Adjust ring index. */ | |
3258 | ha->req_ring_index++; | |
3259 | if (ha->req_ring_index == REQUEST_ENTRY_CNT) { | |
3260 | ha->req_ring_index = 0; | |
3261 | ha->request_ring_ptr = ha->request_ring; | |
3262 | } else | |
3263 | ha->request_ring_ptr++; | |
3264 | ||
3265 | /* Set chip new ring index. */ | |
3266 | dprintk(2, "qla1280_32bit_start_scsi: Wakeup RISC " | |
3267 | "for pending command\n"); | |
3268 | sp->flags |= SRB_SENT; | |
3269 | ha->actthreads++; | |
3270 | WRT_REG_WORD(®->mailbox4, ha->req_ring_index); | |
3271 | /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */ | |
3272 | mmiowb(); | |
3273 | ||
3274 | out: | |
3275 | if (status) | |
3276 | dprintk(2, "qla1280_32bit_start_scsi: **** FAILED ****\n"); | |
3277 | ||
3278 | LEAVE("qla1280_32bit_start_scsi"); | |
3279 | ||
3280 | return status; | |
3281 | } | |
3282 | #endif | |
3283 | ||
3284 | /* | |
3285 | * qla1280_req_pkt | |
3286 | * Function is responsible for locking ring and | |
3287 | * getting a zeroed out request packet. | |
3288 | * | |
3289 | * Input: | |
3290 | * ha = adapter block pointer. | |
3291 | * | |
3292 | * Returns: | |
3293 | * 0 = failed to get slot. | |
3294 | */ | |
3295 | static request_t * | |
3296 | qla1280_req_pkt(struct scsi_qla_host *ha) | |
3297 | { | |
3298 | struct device_reg __iomem *reg = ha->iobase; | |
3299 | request_t *pkt = NULL; | |
3300 | int cnt; | |
3301 | uint32_t timer; | |
3302 | ||
3303 | ENTER("qla1280_req_pkt"); | |
3304 | ||
3305 | /* | |
3306 | * This can be called from interrupt context, damn it!!! | |
3307 | */ | |
3308 | /* Wait for 30 seconds for slot. */ | |
3309 | for (timer = 15000000; timer; timer--) { | |
3310 | if (ha->req_q_cnt > 0) { | |
3311 | /* Calculate number of free request entries. */ | |
3312 | cnt = RD_REG_WORD(®->mailbox4); | |
3313 | if (ha->req_ring_index < cnt) | |
3314 | ha->req_q_cnt = cnt - ha->req_ring_index; | |
3315 | else | |
3316 | ha->req_q_cnt = | |
3317 | REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt); | |
3318 | } | |
3319 | ||
3320 | /* Found empty request ring slot? */ | |
3321 | if (ha->req_q_cnt > 0) { | |
3322 | ha->req_q_cnt--; | |
3323 | pkt = ha->request_ring_ptr; | |
3324 | ||
3325 | /* Zero out packet. */ | |
3326 | memset(pkt, 0, REQUEST_ENTRY_SIZE); | |
3327 | ||
3328 | /* | |
3329 | * How can this be right when we have a ring | |
3330 | * size of 512??? | |
3331 | */ | |
3332 | /* Set system defined field. */ | |
3333 | pkt->sys_define = (uint8_t) ha->req_ring_index; | |
3334 | ||
3335 | /* Set entry count. */ | |
3336 | pkt->entry_count = 1; | |
3337 | ||
3338 | break; | |
3339 | } | |
3340 | ||
3341 | udelay(2); /* 10 */ | |
3342 | ||
3343 | /* Check for pending interrupts. */ | |
3344 | qla1280_poll(ha); | |
3345 | } | |
3346 | ||
3347 | if (!pkt) | |
3348 | dprintk(2, "qla1280_req_pkt: **** FAILED ****\n"); | |
3349 | else | |
3350 | dprintk(3, "qla1280_req_pkt: exiting normally\n"); | |
3351 | ||
3352 | return pkt; | |
3353 | } | |
3354 | ||
3355 | /* | |
3356 | * qla1280_isp_cmd | |
3357 | * Function is responsible for modifying ISP input pointer. | |
3358 | * Releases ring lock. | |
3359 | * | |
3360 | * Input: | |
3361 | * ha = adapter block pointer. | |
3362 | */ | |
3363 | static void | |
3364 | qla1280_isp_cmd(struct scsi_qla_host *ha) | |
3365 | { | |
3366 | struct device_reg __iomem *reg = ha->iobase; | |
3367 | ||
3368 | ENTER("qla1280_isp_cmd"); | |
3369 | ||
3370 | dprintk(5, "qla1280_isp_cmd: IOCB data:\n"); | |
3371 | qla1280_dump_buffer(5, (char *)ha->request_ring_ptr, | |
3372 | REQUEST_ENTRY_SIZE); | |
3373 | ||
3374 | /* Adjust ring index. */ | |
3375 | ha->req_ring_index++; | |
3376 | if (ha->req_ring_index == REQUEST_ENTRY_CNT) { | |
3377 | ha->req_ring_index = 0; | |
3378 | ha->request_ring_ptr = ha->request_ring; | |
3379 | } else | |
3380 | ha->request_ring_ptr++; | |
3381 | ||
3382 | /* | |
3383 | * Update request index to mailbox4 (Request Queue In). | |
3384 | * The mmiowb() ensures that this write is ordered with writes by other | |
3385 | * CPUs. Without the mmiowb(), it is possible for the following: | |
3386 | * CPUA posts write of index 5 to mailbox4 | |
3387 | * CPUA releases host lock | |
3388 | * CPUB acquires host lock | |
3389 | * CPUB posts write of index 6 to mailbox4 | |
3390 | * On PCI bus, order reverses and write of 6 posts, then index 5, | |
3391 | * causing chip to issue full queue of stale commands | |
3392 | * The mmiowb() prevents future writes from crossing the barrier. | |
3393 | * See Documentation/DocBook/deviceiobook.tmpl for more information. | |
3394 | */ | |
3395 | WRT_REG_WORD(®->mailbox4, ha->req_ring_index); | |
3396 | mmiowb(); | |
3397 | ||
3398 | LEAVE("qla1280_isp_cmd"); | |
3399 | } | |
3400 | ||
3401 | /****************************************************************************/ | |
3402 | /* Interrupt Service Routine. */ | |
3403 | /****************************************************************************/ | |
3404 | ||
3405 | /**************************************************************************** | |
3406 | * qla1280_isr | |
3407 | * Calls I/O done on command completion. | |
3408 | * | |
3409 | * Input: | |
3410 | * ha = adapter block pointer. | |
3411 | * done_q = done queue. | |
3412 | ****************************************************************************/ | |
3413 | static void | |
3414 | qla1280_isr(struct scsi_qla_host *ha, struct list_head *done_q) | |
3415 | { | |
3416 | struct device_reg __iomem *reg = ha->iobase; | |
3417 | struct response *pkt; | |
3418 | struct srb *sp = NULL; | |
3419 | uint16_t mailbox[MAILBOX_REGISTER_COUNT]; | |
3420 | uint16_t *wptr; | |
3421 | uint32_t index; | |
3422 | u16 istatus; | |
3423 | ||
3424 | ENTER("qla1280_isr"); | |
3425 | ||
3426 | istatus = RD_REG_WORD(®->istatus); | |
3427 | if (!(istatus & (RISC_INT | PCI_INT))) | |
3428 | return; | |
3429 | ||
3430 | /* Save mailbox register 5 */ | |
3431 | mailbox[5] = RD_REG_WORD(®->mailbox5); | |
3432 | ||
3433 | /* Check for mailbox interrupt. */ | |
3434 | ||
3435 | mailbox[0] = RD_REG_WORD_dmasync(®->semaphore); | |
3436 | ||
3437 | if (mailbox[0] & BIT_0) { | |
3438 | /* Get mailbox data. */ | |
3439 | /* dprintk(1, "qla1280_isr: In Get mailbox data \n"); */ | |
3440 | ||
3441 | wptr = &mailbox[0]; | |
3442 | *wptr++ = RD_REG_WORD(®->mailbox0); | |
3443 | *wptr++ = RD_REG_WORD(®->mailbox1); | |
3444 | *wptr = RD_REG_WORD(®->mailbox2); | |
3445 | if (mailbox[0] != MBA_SCSI_COMPLETION) { | |
3446 | wptr++; | |
3447 | *wptr++ = RD_REG_WORD(®->mailbox3); | |
3448 | *wptr++ = RD_REG_WORD(®->mailbox4); | |
3449 | wptr++; | |
3450 | *wptr++ = RD_REG_WORD(®->mailbox6); | |
3451 | *wptr = RD_REG_WORD(®->mailbox7); | |
3452 | } | |
3453 | ||
3454 | /* Release mailbox registers. */ | |
3455 | ||
3456 | WRT_REG_WORD(®->semaphore, 0); | |
3457 | WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT); | |
3458 | ||
3459 | dprintk(5, "qla1280_isr: mailbox interrupt mailbox[0] = 0x%x", | |
3460 | mailbox[0]); | |
3461 | ||
3462 | /* Handle asynchronous event */ | |
3463 | switch (mailbox[0]) { | |
3464 | case MBA_SCSI_COMPLETION: /* Response completion */ | |
3465 | dprintk(5, "qla1280_isr: mailbox SCSI response " | |
3466 | "completion\n"); | |
3467 | ||
3468 | if (ha->flags.online) { | |
3469 | /* Get outstanding command index. */ | |
3470 | index = mailbox[2] << 16 | mailbox[1]; | |
3471 | ||
3472 | /* Validate handle. */ | |
3473 | if (index < MAX_OUTSTANDING_COMMANDS) | |
3474 | sp = ha->outstanding_cmds[index]; | |
3475 | else | |
3476 | sp = NULL; | |
3477 | ||
3478 | if (sp) { | |
3479 | /* Free outstanding command slot. */ | |
3480 | ha->outstanding_cmds[index] = NULL; | |
3481 | ||
3482 | /* Save ISP completion status */ | |
3483 | CMD_RESULT(sp->cmd) = 0; | |
3484 | CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE; | |
3485 | ||
3486 | /* Place block on done queue */ | |
3487 | list_add_tail(&sp->list, done_q); | |
3488 | } else { | |
3489 | /* | |
3490 | * If we get here we have a real problem! | |
3491 | */ | |
3492 | printk(KERN_WARNING | |
3493 | "qla1280: ISP invalid handle\n"); | |
3494 | } | |
3495 | } | |
3496 | break; | |
3497 | ||
3498 | case MBA_BUS_RESET: /* SCSI Bus Reset */ | |
3499 | ha->flags.reset_marker = 1; | |
3500 | index = mailbox[6] & BIT_0; | |
3501 | ha->bus_settings[index].reset_marker = 1; | |
3502 | ||
3503 | printk(KERN_DEBUG "qla1280_isr(): index %i " | |
3504 | "asynchronous BUS_RESET\n", index); | |
3505 | break; | |
3506 | ||
3507 | case MBA_SYSTEM_ERR: /* System Error */ | |
3508 | printk(KERN_WARNING | |
3509 | "qla1280: ISP System Error - mbx1=%xh, mbx2=" | |
3510 | "%xh, mbx3=%xh\n", mailbox[1], mailbox[2], | |
3511 | mailbox[3]); | |
3512 | break; | |
3513 | ||
3514 | case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ | |
3515 | printk(KERN_WARNING | |
3516 | "qla1280: ISP Request Transfer Error\n"); | |
3517 | break; | |
3518 | ||
3519 | case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */ | |
3520 | printk(KERN_WARNING | |
3521 | "qla1280: ISP Response Transfer Error\n"); | |
3522 | break; | |
3523 | ||
3524 | case MBA_WAKEUP_THRES: /* Request Queue Wake-up */ | |
3525 | dprintk(2, "qla1280_isr: asynchronous WAKEUP_THRES\n"); | |
3526 | break; | |
3527 | ||
3528 | case MBA_TIMEOUT_RESET: /* Execution Timeout Reset */ | |
3529 | dprintk(2, | |
3530 | "qla1280_isr: asynchronous TIMEOUT_RESET\n"); | |
3531 | break; | |
3532 | ||
3533 | case MBA_DEVICE_RESET: /* Bus Device Reset */ | |
3534 | printk(KERN_INFO "qla1280_isr(): asynchronous " | |
3535 | "BUS_DEVICE_RESET\n"); | |
3536 | ||
3537 | ha->flags.reset_marker = 1; | |
3538 | index = mailbox[6] & BIT_0; | |
3539 | ha->bus_settings[index].reset_marker = 1; | |
3540 | break; | |
3541 | ||
3542 | case MBA_BUS_MODE_CHANGE: | |
3543 | dprintk(2, | |
3544 | "qla1280_isr: asynchronous BUS_MODE_CHANGE\n"); | |
3545 | break; | |
3546 | ||
3547 | default: | |
3548 | /* dprintk(1, "qla1280_isr: default case of switch MB \n"); */ | |
3549 | if (mailbox[0] < MBA_ASYNC_EVENT) { | |
3550 | wptr = &mailbox[0]; | |
3551 | memcpy((uint16_t *) ha->mailbox_out, wptr, | |
3552 | MAILBOX_REGISTER_COUNT * | |
3553 | sizeof(uint16_t)); | |
3554 | ||
3555 | if(ha->mailbox_wait != NULL) | |
3556 | complete(ha->mailbox_wait); | |
3557 | } | |
3558 | break; | |
3559 | } | |
3560 | } else { | |
3561 | WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT); | |
3562 | } | |
3563 | ||
3564 | /* | |
3565 | * We will receive interrupts during mailbox testing prior to | |
3566 | * the card being marked online, hence the double check. | |
3567 | */ | |
3568 | if (!(ha->flags.online && !ha->mailbox_wait)) { | |
3569 | dprintk(2, "qla1280_isr: Response pointer Error\n"); | |
3570 | goto out; | |
3571 | } | |
3572 | ||
3573 | if (mailbox[5] >= RESPONSE_ENTRY_CNT) | |
3574 | goto out; | |
3575 | ||
3576 | while (ha->rsp_ring_index != mailbox[5]) { | |
3577 | pkt = ha->response_ring_ptr; | |
3578 | ||
3579 | dprintk(5, "qla1280_isr: ha->rsp_ring_index = 0x%x, mailbox[5]" | |
3580 | " = 0x%x\n", ha->rsp_ring_index, mailbox[5]); | |
3581 | dprintk(5,"qla1280_isr: response packet data\n"); | |
3582 | qla1280_dump_buffer(5, (char *)pkt, RESPONSE_ENTRY_SIZE); | |
3583 | ||
3584 | if (pkt->entry_type == STATUS_TYPE) { | |
3585 | if ((le16_to_cpu(pkt->scsi_status) & 0xff) | |
3586 | || pkt->comp_status || pkt->entry_status) { | |
3587 | dprintk(2, "qla1280_isr: ha->rsp_ring_index = " | |
3588 | "0x%x mailbox[5] = 0x%x, comp_status " | |
3589 | "= 0x%x, scsi_status = 0x%x\n", | |
3590 | ha->rsp_ring_index, mailbox[5], | |
3591 | le16_to_cpu(pkt->comp_status), | |
3592 | le16_to_cpu(pkt->scsi_status)); | |
3593 | } | |
3594 | } else { | |
3595 | dprintk(2, "qla1280_isr: ha->rsp_ring_index = " | |
3596 | "0x%x, mailbox[5] = 0x%x\n", | |
3597 | ha->rsp_ring_index, mailbox[5]); | |
3598 | dprintk(2, "qla1280_isr: response packet data\n"); | |
3599 | qla1280_dump_buffer(2, (char *)pkt, | |
3600 | RESPONSE_ENTRY_SIZE); | |
3601 | } | |
3602 | ||
3603 | if (pkt->entry_type == STATUS_TYPE || pkt->entry_status) { | |
3604 | dprintk(2, "status: Cmd %p, handle %i\n", | |
3605 | ha->outstanding_cmds[pkt->handle]->cmd, | |
3606 | pkt->handle); | |
3607 | if (pkt->entry_type == STATUS_TYPE) | |
3608 | qla1280_status_entry(ha, pkt, done_q); | |
3609 | else | |
3610 | qla1280_error_entry(ha, pkt, done_q); | |
3611 | /* Adjust ring index. */ | |
3612 | ha->rsp_ring_index++; | |
3613 | if (ha->rsp_ring_index == RESPONSE_ENTRY_CNT) { | |
3614 | ha->rsp_ring_index = 0; | |
3615 | ha->response_ring_ptr = ha->response_ring; | |
3616 | } else | |
3617 | ha->response_ring_ptr++; | |
3618 | WRT_REG_WORD(®->mailbox5, ha->rsp_ring_index); | |
3619 | } | |
3620 | } | |
3621 | ||
3622 | out: | |
3623 | LEAVE("qla1280_isr"); | |
3624 | } | |
3625 | ||
3626 | /* | |
3627 | * qla1280_rst_aen | |
3628 | * Processes asynchronous reset. | |
3629 | * | |
3630 | * Input: | |
3631 | * ha = adapter block pointer. | |
3632 | */ | |
3633 | static void | |
3634 | qla1280_rst_aen(struct scsi_qla_host *ha) | |
3635 | { | |
3636 | uint8_t bus; | |
3637 | ||
3638 | ENTER("qla1280_rst_aen"); | |
3639 | ||
3640 | if (ha->flags.online && !ha->flags.reset_active && | |
3641 | !ha->flags.abort_isp_active) { | |
3642 | ha->flags.reset_active = 1; | |
3643 | while (ha->flags.reset_marker) { | |
3644 | /* Issue marker command. */ | |
3645 | ha->flags.reset_marker = 0; | |
3646 | for (bus = 0; bus < ha->ports && | |
3647 | !ha->flags.reset_marker; bus++) { | |
3648 | if (ha->bus_settings[bus].reset_marker) { | |
3649 | ha->bus_settings[bus].reset_marker = 0; | |
3650 | qla1280_marker(ha, bus, 0, 0, | |
3651 | MK_SYNC_ALL); | |
3652 | } | |
3653 | } | |
3654 | } | |
3655 | } | |
3656 | ||
3657 | LEAVE("qla1280_rst_aen"); | |
3658 | } | |
3659 | ||
3660 | ||
3661 | /* | |
3662 | * qla1280_status_entry | |
3663 | * Processes received ISP status entry. | |
3664 | * | |
3665 | * Input: | |
3666 | * ha = adapter block pointer. | |
3667 | * pkt = entry pointer. | |
3668 | * done_q = done queue. | |
3669 | */ | |
3670 | static void | |
3671 | qla1280_status_entry(struct scsi_qla_host *ha, struct response *pkt, | |
3672 | struct list_head *done_q) | |
3673 | { | |
3674 | unsigned int bus, target, lun; | |
3675 | int sense_sz; | |
3676 | struct srb *sp; | |
3677 | struct scsi_cmnd *cmd; | |
3678 | uint32_t handle = le32_to_cpu(pkt->handle); | |
3679 | uint16_t scsi_status = le16_to_cpu(pkt->scsi_status); | |
3680 | uint16_t comp_status = le16_to_cpu(pkt->comp_status); | |
3681 | ||
3682 | ENTER("qla1280_status_entry"); | |
3683 | ||
3684 | /* Validate handle. */ | |
3685 | if (handle < MAX_OUTSTANDING_COMMANDS) | |
3686 | sp = ha->outstanding_cmds[handle]; | |
3687 | else | |
3688 | sp = NULL; | |
3689 | ||
3690 | if (!sp) { | |
3691 | printk(KERN_WARNING "qla1280: Status Entry invalid handle\n"); | |
3692 | goto out; | |
3693 | } | |
3694 | ||
3695 | /* Free outstanding command slot. */ | |
3696 | ha->outstanding_cmds[handle] = NULL; | |
3697 | ||
3698 | cmd = sp->cmd; | |
3699 | ||
3700 | /* Generate LU queue on cntrl, target, LUN */ | |
3701 | bus = SCSI_BUS_32(cmd); | |
3702 | target = SCSI_TCN_32(cmd); | |
3703 | lun = SCSI_LUN_32(cmd); | |
3704 | ||
3705 | if (comp_status || scsi_status) { | |
3706 | dprintk(3, "scsi: comp_status = 0x%x, scsi_status = " | |
3707 | "0x%x, handle = 0x%x\n", comp_status, | |
3708 | scsi_status, handle); | |
3709 | } | |
3710 | ||
3711 | /* Target busy or queue full */ | |
3712 | if ((scsi_status & 0xFF) == SAM_STAT_TASK_SET_FULL || | |
3713 | (scsi_status & 0xFF) == SAM_STAT_BUSY) { | |
3714 | CMD_RESULT(cmd) = scsi_status & 0xff; | |
3715 | } else { | |
3716 | ||
3717 | /* Save ISP completion status */ | |
3718 | CMD_RESULT(cmd) = qla1280_return_status(pkt, cmd); | |
3719 | ||
3720 | if (scsi_status & SAM_STAT_CHECK_CONDITION) { | |
3721 | if (comp_status != CS_ARS_FAILED) { | |
3722 | uint16_t req_sense_length = | |
3723 | le16_to_cpu(pkt->req_sense_length); | |
3724 | if (req_sense_length < CMD_SNSLEN(cmd)) | |
3725 | sense_sz = req_sense_length; | |
3726 | else | |
3727 | /* | |
3728 | * scsi_cmnd->sense_buffer is | |
3729 | * 64 bytes, why only copy 63? | |
3730 | * This looks wrong! /Jes | |
3731 | */ | |
3732 | sense_sz = CMD_SNSLEN(cmd) - 1; | |
3733 | ||
3734 | memcpy(cmd->sense_buffer, | |
3735 | &pkt->req_sense_data, sense_sz); | |
3736 | } else | |
3737 | sense_sz = 0; | |
3738 | memset(cmd->sense_buffer + sense_sz, 0, | |
3739 | SCSI_SENSE_BUFFERSIZE - sense_sz); | |
3740 | ||
3741 | dprintk(2, "qla1280_status_entry: Check " | |
3742 | "condition Sense data, b %i, t %i, " | |
3743 | "l %i\n", bus, target, lun); | |
3744 | if (sense_sz) | |
3745 | qla1280_dump_buffer(2, | |
3746 | (char *)cmd->sense_buffer, | |
3747 | sense_sz); | |
3748 | } | |
3749 | } | |
3750 | ||
3751 | CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE; | |
3752 | ||
3753 | /* Place command on done queue. */ | |
3754 | list_add_tail(&sp->list, done_q); | |
3755 | out: | |
3756 | LEAVE("qla1280_status_entry"); | |
3757 | } | |
3758 | ||
3759 | /* | |
3760 | * qla1280_error_entry | |
3761 | * Processes error entry. | |
3762 | * | |
3763 | * Input: | |
3764 | * ha = adapter block pointer. | |
3765 | * pkt = entry pointer. | |
3766 | * done_q = done queue. | |
3767 | */ | |
3768 | static void | |
3769 | qla1280_error_entry(struct scsi_qla_host *ha, struct response *pkt, | |
3770 | struct list_head *done_q) | |
3771 | { | |
3772 | struct srb *sp; | |
3773 | uint32_t handle = le32_to_cpu(pkt->handle); | |
3774 | ||
3775 | ENTER("qla1280_error_entry"); | |
3776 | ||
3777 | if (pkt->entry_status & BIT_3) | |
3778 | dprintk(2, "qla1280_error_entry: BAD PAYLOAD flag error\n"); | |
3779 | else if (pkt->entry_status & BIT_2) | |
3780 | dprintk(2, "qla1280_error_entry: BAD HEADER flag error\n"); | |
3781 | else if (pkt->entry_status & BIT_1) | |
3782 | dprintk(2, "qla1280_error_entry: FULL flag error\n"); | |
3783 | else | |
3784 | dprintk(2, "qla1280_error_entry: UNKNOWN flag error\n"); | |
3785 | ||
3786 | /* Validate handle. */ | |
3787 | if (handle < MAX_OUTSTANDING_COMMANDS) | |
3788 | sp = ha->outstanding_cmds[handle]; | |
3789 | else | |
3790 | sp = NULL; | |
3791 | ||
3792 | if (sp) { | |
3793 | /* Free outstanding command slot. */ | |
3794 | ha->outstanding_cmds[handle] = NULL; | |
3795 | ||
3796 | /* Bad payload or header */ | |
3797 | if (pkt->entry_status & (BIT_3 + BIT_2)) { | |
3798 | /* Bad payload or header, set error status. */ | |
3799 | /* CMD_RESULT(sp->cmd) = CS_BAD_PAYLOAD; */ | |
3800 | CMD_RESULT(sp->cmd) = DID_ERROR << 16; | |
3801 | } else if (pkt->entry_status & BIT_1) { /* FULL flag */ | |
3802 | CMD_RESULT(sp->cmd) = DID_BUS_BUSY << 16; | |
3803 | } else { | |
3804 | /* Set error status. */ | |
3805 | CMD_RESULT(sp->cmd) = DID_ERROR << 16; | |
3806 | } | |
3807 | ||
3808 | CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE; | |
3809 | ||
3810 | /* Place command on done queue. */ | |
3811 | list_add_tail(&sp->list, done_q); | |
3812 | } | |
3813 | #ifdef QLA_64BIT_PTR | |
3814 | else if (pkt->entry_type == COMMAND_A64_TYPE) { | |
3815 | printk(KERN_WARNING "!qla1280: Error Entry invalid handle"); | |
3816 | } | |
3817 | #endif | |
3818 | ||
3819 | LEAVE("qla1280_error_entry"); | |
3820 | } | |
3821 | ||
3822 | /* | |
3823 | * qla1280_abort_isp | |
3824 | * Resets ISP and aborts all outstanding commands. | |
3825 | * | |
3826 | * Input: | |
3827 | * ha = adapter block pointer. | |
3828 | * | |
3829 | * Returns: | |
3830 | * 0 = success | |
3831 | */ | |
3832 | static int | |
3833 | qla1280_abort_isp(struct scsi_qla_host *ha) | |
3834 | { | |
3835 | struct device_reg __iomem *reg = ha->iobase; | |
3836 | struct srb *sp; | |
3837 | int status = 0; | |
3838 | int cnt; | |
3839 | int bus; | |
3840 | ||
3841 | ENTER("qla1280_abort_isp"); | |
3842 | ||
3843 | if (ha->flags.abort_isp_active || !ha->flags.online) | |
3844 | goto out; | |
3845 | ||
3846 | ha->flags.abort_isp_active = 1; | |
3847 | ||
3848 | /* Disable ISP interrupts. */ | |
3849 | qla1280_disable_intrs(ha); | |
3850 | WRT_REG_WORD(®->host_cmd, HC_PAUSE_RISC); | |
3851 | RD_REG_WORD(®->id_l); | |
3852 | ||
3853 | printk(KERN_INFO "scsi(%li): dequeuing outstanding commands\n", | |
3854 | ha->host_no); | |
3855 | /* Dequeue all commands in outstanding command list. */ | |
3856 | for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) { | |
3857 | struct scsi_cmnd *cmd; | |
3858 | sp = ha->outstanding_cmds[cnt]; | |
3859 | if (sp) { | |
3860 | cmd = sp->cmd; | |
3861 | CMD_RESULT(cmd) = DID_RESET << 16; | |
3862 | CMD_HANDLE(cmd) = COMPLETED_HANDLE; | |
3863 | ha->outstanding_cmds[cnt] = NULL; | |
3864 | list_add_tail(&sp->list, &ha->done_q); | |
3865 | } | |
3866 | } | |
3867 | ||
3868 | qla1280_done(ha); | |
3869 | ||
3870 | status = qla1280_load_firmware(ha); | |
3871 | if (status) | |
3872 | goto out; | |
3873 | ||
3874 | /* Setup adapter based on NVRAM parameters. */ | |
3875 | qla1280_nvram_config (ha); | |
3876 | ||
3877 | status = qla1280_init_rings(ha); | |
3878 | if (status) | |
3879 | goto out; | |
3880 | ||
3881 | /* Issue SCSI reset. */ | |
3882 | for (bus = 0; bus < ha->ports; bus++) | |
3883 | qla1280_bus_reset(ha, bus); | |
3884 | ||
3885 | ha->flags.abort_isp_active = 0; | |
3886 | out: | |
3887 | if (status) { | |
3888 | printk(KERN_WARNING | |
3889 | "qla1280: ISP error recovery failed, board disabled"); | |
3890 | qla1280_reset_adapter(ha); | |
3891 | dprintk(2, "qla1280_abort_isp: **** FAILED ****\n"); | |
3892 | } | |
3893 | ||
3894 | LEAVE("qla1280_abort_isp"); | |
3895 | return status; | |
3896 | } | |
3897 | ||
3898 | ||
3899 | /* | |
3900 | * qla1280_debounce_register | |
3901 | * Debounce register. | |
3902 | * | |
3903 | * Input: | |
3904 | * port = register address. | |
3905 | * | |
3906 | * Returns: | |
3907 | * register value. | |
3908 | */ | |
3909 | static u16 | |
3910 | qla1280_debounce_register(volatile u16 __iomem * addr) | |
3911 | { | |
3912 | volatile u16 ret; | |
3913 | volatile u16 ret2; | |
3914 | ||
3915 | ret = RD_REG_WORD(addr); | |
3916 | ret2 = RD_REG_WORD(addr); | |
3917 | ||
3918 | if (ret == ret2) | |
3919 | return ret; | |
3920 | ||
3921 | do { | |
3922 | cpu_relax(); | |
3923 | ret = RD_REG_WORD(addr); | |
3924 | ret2 = RD_REG_WORD(addr); | |
3925 | } while (ret != ret2); | |
3926 | ||
3927 | return ret; | |
3928 | } | |
3929 | ||
3930 | ||
3931 | /************************************************************************ | |
3932 | * qla1280_check_for_dead_scsi_bus * | |
3933 | * * | |
3934 | * This routine checks for a dead SCSI bus * | |
3935 | ************************************************************************/ | |
3936 | #define SET_SXP_BANK 0x0100 | |
3937 | #define SCSI_PHASE_INVALID 0x87FF | |
3938 | static int | |
3939 | qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *ha, unsigned int bus) | |
3940 | { | |
3941 | uint16_t config_reg, scsi_control; | |
3942 | struct device_reg __iomem *reg = ha->iobase; | |
3943 | ||
3944 | if (ha->bus_settings[bus].scsi_bus_dead) { | |
3945 | WRT_REG_WORD(®->host_cmd, HC_PAUSE_RISC); | |
3946 | config_reg = RD_REG_WORD(®->cfg_1); | |
3947 | WRT_REG_WORD(®->cfg_1, SET_SXP_BANK); | |
3948 | scsi_control = RD_REG_WORD(®->scsiControlPins); | |
3949 | WRT_REG_WORD(®->cfg_1, config_reg); | |
3950 | WRT_REG_WORD(®->host_cmd, HC_RELEASE_RISC); | |
3951 | ||
3952 | if (scsi_control == SCSI_PHASE_INVALID) { | |
3953 | ha->bus_settings[bus].scsi_bus_dead = 1; | |
3954 | return 1; /* bus is dead */ | |
3955 | } else { | |
3956 | ha->bus_settings[bus].scsi_bus_dead = 0; | |
3957 | ha->bus_settings[bus].failed_reset_count = 0; | |
3958 | } | |
3959 | } | |
3960 | return 0; /* bus is not dead */ | |
3961 | } | |
3962 | ||
3963 | static void | |
3964 | qla1280_get_target_parameters(struct scsi_qla_host *ha, | |
3965 | struct scsi_device *device) | |
3966 | { | |
3967 | uint16_t mb[MAILBOX_REGISTER_COUNT]; | |
3968 | int bus, target, lun; | |
3969 | ||
3970 | bus = device->channel; | |
3971 | target = device->id; | |
3972 | lun = device->lun; | |
3973 | ||
3974 | ||
3975 | mb[0] = MBC_GET_TARGET_PARAMETERS; | |
3976 | mb[1] = (uint16_t) (bus ? target | BIT_7 : target); | |
3977 | mb[1] <<= 8; | |
3978 | qla1280_mailbox_command(ha, BIT_6 | BIT_3 | BIT_2 | BIT_1 | BIT_0, | |
3979 | &mb[0]); | |
3980 | ||
3981 | printk(KERN_INFO "scsi(%li:%d:%d:%d):", ha->host_no, bus, target, lun); | |
3982 | ||
3983 | if (mb[3] != 0) { | |
3984 | printk(" Sync: period %d, offset %d", | |
3985 | (mb[3] & 0xff), (mb[3] >> 8)); | |
3986 | if (mb[2] & BIT_13) | |
3987 | printk(", Wide"); | |
3988 | if ((mb[2] & BIT_5) && ((mb[6] >> 8) & 0xff) >= 2) | |
3989 | printk(", DT"); | |
3990 | } else | |
3991 | printk(" Async"); | |
3992 | ||
3993 | if (device->simple_tags) | |
3994 | printk(", Tagged queuing: depth %d", device->queue_depth); | |
3995 | printk("\n"); | |
3996 | } | |
3997 | ||
3998 | ||
3999 | #if DEBUG_QLA1280 | |
4000 | static void | |
4001 | __qla1280_dump_buffer(char *b, int size) | |
4002 | { | |
4003 | int cnt; | |
4004 | u8 c; | |
4005 | ||
4006 | printk(KERN_DEBUG " 0 1 2 3 4 5 6 7 8 9 Ah " | |
4007 | "Bh Ch Dh Eh Fh\n"); | |
4008 | printk(KERN_DEBUG "---------------------------------------------" | |
4009 | "------------------\n"); | |
4010 | ||
4011 | for (cnt = 0; cnt < size;) { | |
4012 | c = *b++; | |
4013 | ||
4014 | printk("0x%02x", c); | |
4015 | cnt++; | |
4016 | if (!(cnt % 16)) | |
4017 | printk("\n"); | |
4018 | else | |
4019 | printk(" "); | |
4020 | } | |
4021 | if (cnt % 16) | |
4022 | printk("\n"); | |
4023 | } | |
4024 | ||
4025 | /************************************************************************** | |
4026 | * ql1280_print_scsi_cmd | |
4027 | * | |
4028 | **************************************************************************/ | |
4029 | static void | |
4030 | __qla1280_print_scsi_cmd(struct scsi_cmnd *cmd) | |
4031 | { | |
4032 | struct scsi_qla_host *ha; | |
4033 | struct Scsi_Host *host = CMD_HOST(cmd); | |
4034 | struct srb *sp; | |
4035 | /* struct scatterlist *sg; */ | |
4036 | ||
4037 | int i; | |
4038 | ha = (struct scsi_qla_host *)host->hostdata; | |
4039 | ||
4040 | sp = (struct srb *)CMD_SP(cmd); | |
4041 | printk("SCSI Command @= 0x%p, Handle=0x%p\n", cmd, CMD_HANDLE(cmd)); | |
4042 | printk(" chan=%d, target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n", | |
4043 | SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd), | |
4044 | CMD_CDBLEN(cmd)); | |
4045 | printk(" CDB = "); | |
4046 | for (i = 0; i < cmd->cmd_len; i++) { | |
4047 | printk("0x%02x ", cmd->cmnd[i]); | |
4048 | } | |
4049 | printk(" seg_cnt =%d\n", scsi_sg_count(cmd)); | |
4050 | printk(" request buffer=0x%p, request buffer len=0x%x\n", | |
4051 | scsi_sglist(cmd), scsi_bufflen(cmd)); | |
4052 | /* if (cmd->use_sg) | |
4053 | { | |
4054 | sg = (struct scatterlist *) cmd->request_buffer; | |
4055 | printk(" SG buffer: \n"); | |
4056 | qla1280_dump_buffer(1, (char *)sg, (cmd->use_sg*sizeof(struct scatterlist))); | |
4057 | } */ | |
4058 | printk(" tag=%d, transfersize=0x%x \n", | |
4059 | cmd->tag, cmd->transfersize); | |
4060 | printk(" SP=0x%p\n", CMD_SP(cmd)); | |
4061 | printk(" underflow size = 0x%x, direction=0x%x\n", | |
4062 | cmd->underflow, cmd->sc_data_direction); | |
4063 | } | |
4064 | ||
4065 | /************************************************************************** | |
4066 | * ql1280_dump_device | |
4067 | * | |
4068 | **************************************************************************/ | |
4069 | static void | |
4070 | ql1280_dump_device(struct scsi_qla_host *ha) | |
4071 | { | |
4072 | ||
4073 | struct scsi_cmnd *cp; | |
4074 | struct srb *sp; | |
4075 | int i; | |
4076 | ||
4077 | printk(KERN_DEBUG "Outstanding Commands on controller:\n"); | |
4078 | ||
4079 | for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) { | |
4080 | if ((sp = ha->outstanding_cmds[i]) == NULL) | |
4081 | continue; | |
4082 | if ((cp = sp->cmd) == NULL) | |
4083 | continue; | |
4084 | qla1280_print_scsi_cmd(1, cp); | |
4085 | } | |
4086 | } | |
4087 | #endif | |
4088 | ||
4089 | ||
4090 | enum tokens { | |
4091 | TOKEN_NVRAM, | |
4092 | TOKEN_SYNC, | |
4093 | TOKEN_WIDE, | |
4094 | TOKEN_PPR, | |
4095 | TOKEN_VERBOSE, | |
4096 | TOKEN_DEBUG, | |
4097 | }; | |
4098 | ||
4099 | struct setup_tokens { | |
4100 | char *token; | |
4101 | int val; | |
4102 | }; | |
4103 | ||
4104 | static struct setup_tokens setup_token[] __initdata = | |
4105 | { | |
4106 | { "nvram", TOKEN_NVRAM }, | |
4107 | { "sync", TOKEN_SYNC }, | |
4108 | { "wide", TOKEN_WIDE }, | |
4109 | { "ppr", TOKEN_PPR }, | |
4110 | { "verbose", TOKEN_VERBOSE }, | |
4111 | { "debug", TOKEN_DEBUG }, | |
4112 | }; | |
4113 | ||
4114 | ||
4115 | /************************************************************************** | |
4116 | * qla1280_setup | |
4117 | * | |
4118 | * Handle boot parameters. This really needs to be changed so one | |
4119 | * can specify per adapter parameters. | |
4120 | **************************************************************************/ | |
4121 | static int __init | |
4122 | qla1280_setup(char *s) | |
4123 | { | |
4124 | char *cp, *ptr; | |
4125 | unsigned long val; | |
4126 | int toke; | |
4127 | ||
4128 | cp = s; | |
4129 | ||
4130 | while (cp && (ptr = strchr(cp, ':'))) { | |
4131 | ptr++; | |
4132 | if (!strcmp(ptr, "yes")) { | |
4133 | val = 0x10000; | |
4134 | ptr += 3; | |
4135 | } else if (!strcmp(ptr, "no")) { | |
4136 | val = 0; | |
4137 | ptr += 2; | |
4138 | } else | |
4139 | val = simple_strtoul(ptr, &ptr, 0); | |
4140 | ||
4141 | switch ((toke = qla1280_get_token(cp))) { | |
4142 | case TOKEN_NVRAM: | |
4143 | if (!val) | |
4144 | driver_setup.no_nvram = 1; | |
4145 | break; | |
4146 | case TOKEN_SYNC: | |
4147 | if (!val) | |
4148 | driver_setup.no_sync = 1; | |
4149 | else if (val != 0x10000) | |
4150 | driver_setup.sync_mask = val; | |
4151 | break; | |
4152 | case TOKEN_WIDE: | |
4153 | if (!val) | |
4154 | driver_setup.no_wide = 1; | |
4155 | else if (val != 0x10000) | |
4156 | driver_setup.wide_mask = val; | |
4157 | break; | |
4158 | case TOKEN_PPR: | |
4159 | if (!val) | |
4160 | driver_setup.no_ppr = 1; | |
4161 | else if (val != 0x10000) | |
4162 | driver_setup.ppr_mask = val; | |
4163 | break; | |
4164 | case TOKEN_VERBOSE: | |
4165 | qla1280_verbose = val; | |
4166 | break; | |
4167 | default: | |
4168 | printk(KERN_INFO "qla1280: unknown boot option %s\n", | |
4169 | cp); | |
4170 | } | |
4171 | ||
4172 | cp = strchr(ptr, ';'); | |
4173 | if (cp) | |
4174 | cp++; | |
4175 | else { | |
4176 | break; | |
4177 | } | |
4178 | } | |
4179 | return 1; | |
4180 | } | |
4181 | ||
4182 | ||
4183 | static int __init | |
4184 | qla1280_get_token(char *str) | |
4185 | { | |
4186 | char *sep; | |
4187 | long ret = -1; | |
4188 | int i; | |
4189 | ||
4190 | sep = strchr(str, ':'); | |
4191 | ||
4192 | if (sep) { | |
4193 | for (i = 0; i < ARRAY_SIZE(setup_token); i++) { | |
4194 | if (!strncmp(setup_token[i].token, str, (sep - str))) { | |
4195 | ret = setup_token[i].val; | |
4196 | break; | |
4197 | } | |
4198 | } | |
4199 | } | |
4200 | ||
4201 | return ret; | |
4202 | } | |
4203 | ||
4204 | ||
4205 | static struct scsi_host_template qla1280_driver_template = { | |
4206 | .module = THIS_MODULE, | |
4207 | .proc_name = "qla1280", | |
4208 | .name = "Qlogic ISP 1280/12160", | |
4209 | .info = qla1280_info, | |
4210 | .slave_configure = qla1280_slave_configure, | |
4211 | .queuecommand = qla1280_queuecommand, | |
4212 | .eh_abort_handler = qla1280_eh_abort, | |
4213 | .eh_device_reset_handler= qla1280_eh_device_reset, | |
4214 | .eh_bus_reset_handler = qla1280_eh_bus_reset, | |
4215 | .eh_host_reset_handler = qla1280_eh_adapter_reset, | |
4216 | .bios_param = qla1280_biosparam, | |
4217 | .can_queue = 0xfffff, | |
4218 | .this_id = -1, | |
4219 | .sg_tablesize = SG_ALL, | |
4220 | .cmd_per_lun = 1, | |
4221 | .use_clustering = ENABLE_CLUSTERING, | |
4222 | }; | |
4223 | ||
4224 | ||
4225 | static int | |
4226 | qla1280_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) | |
4227 | { | |
4228 | int devnum = id->driver_data; | |
4229 | struct qla_boards *bdp = &ql1280_board_tbl[devnum]; | |
4230 | struct Scsi_Host *host; | |
4231 | struct scsi_qla_host *ha; | |
4232 | int error = -ENODEV; | |
4233 | ||
4234 | /* Bypass all AMI SUBSYS VENDOR IDs */ | |
4235 | if (pdev->subsystem_vendor == PCI_VENDOR_ID_AMI) { | |
4236 | printk(KERN_INFO | |
4237 | "qla1280: Skipping AMI SubSys Vendor ID Chip\n"); | |
4238 | goto error; | |
4239 | } | |
4240 | ||
4241 | printk(KERN_INFO "qla1280: %s found on PCI bus %i, dev %i\n", | |
4242 | bdp->name, pdev->bus->number, PCI_SLOT(pdev->devfn)); | |
4243 | ||
4244 | if (pci_enable_device(pdev)) { | |
4245 | printk(KERN_WARNING | |
4246 | "qla1280: Failed to enabled pci device, aborting.\n"); | |
4247 | goto error; | |
4248 | } | |
4249 | ||
4250 | pci_set_master(pdev); | |
4251 | ||
4252 | error = -ENOMEM; | |
4253 | host = scsi_host_alloc(&qla1280_driver_template, sizeof(*ha)); | |
4254 | if (!host) { | |
4255 | printk(KERN_WARNING | |
4256 | "qla1280: Failed to register host, aborting.\n"); | |
4257 | goto error_disable_device; | |
4258 | } | |
4259 | ||
4260 | ha = (struct scsi_qla_host *)host->hostdata; | |
4261 | memset(ha, 0, sizeof(struct scsi_qla_host)); | |
4262 | ||
4263 | ha->pdev = pdev; | |
4264 | ha->devnum = devnum; /* specifies microcode load address */ | |
4265 | ||
4266 | #ifdef QLA_64BIT_PTR | |
4267 | if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64))) { | |
4268 | if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32))) { | |
4269 | printk(KERN_WARNING "scsi(%li): Unable to set a " | |
4270 | "suitable DMA mask - aborting\n", ha->host_no); | |
4271 | error = -ENODEV; | |
4272 | goto error_put_host; | |
4273 | } | |
4274 | } else | |
4275 | dprintk(2, "scsi(%li): 64 Bit PCI Addressing Enabled\n", | |
4276 | ha->host_no); | |
4277 | #else | |
4278 | if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32))) { | |
4279 | printk(KERN_WARNING "scsi(%li): Unable to set a " | |
4280 | "suitable DMA mask - aborting\n", ha->host_no); | |
4281 | error = -ENODEV; | |
4282 | goto error_put_host; | |
4283 | } | |
4284 | #endif | |
4285 | ||
4286 | ha->request_ring = pci_alloc_consistent(ha->pdev, | |
4287 | ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)), | |
4288 | &ha->request_dma); | |
4289 | if (!ha->request_ring) { | |
4290 | printk(KERN_INFO "qla1280: Failed to get request memory\n"); | |
4291 | goto error_put_host; | |
4292 | } | |
4293 | ||
4294 | ha->response_ring = pci_alloc_consistent(ha->pdev, | |
4295 | ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)), | |
4296 | &ha->response_dma); | |
4297 | if (!ha->response_ring) { | |
4298 | printk(KERN_INFO "qla1280: Failed to get response memory\n"); | |
4299 | goto error_free_request_ring; | |
4300 | } | |
4301 | ||
4302 | ha->ports = bdp->numPorts; | |
4303 | ||
4304 | ha->host = host; | |
4305 | ha->host_no = host->host_no; | |
4306 | ||
4307 | host->irq = pdev->irq; | |
4308 | host->max_channel = bdp->numPorts - 1; | |
4309 | host->max_lun = MAX_LUNS - 1; | |
4310 | host->max_id = MAX_TARGETS; | |
4311 | host->max_sectors = 1024; | |
4312 | host->unique_id = host->host_no; | |
4313 | ||
4314 | error = -ENODEV; | |
4315 | ||
4316 | #if MEMORY_MAPPED_IO | |
4317 | ha->mmpbase = pci_ioremap_bar(ha->pdev, 1); | |
4318 | if (!ha->mmpbase) { | |
4319 | printk(KERN_INFO "qla1280: Unable to map I/O memory\n"); | |
4320 | goto error_free_response_ring; | |
4321 | } | |
4322 | ||
4323 | host->base = (unsigned long)ha->mmpbase; | |
4324 | ha->iobase = (struct device_reg __iomem *)ha->mmpbase; | |
4325 | #else | |
4326 | host->io_port = pci_resource_start(ha->pdev, 0); | |
4327 | if (!request_region(host->io_port, 0xff, "qla1280")) { | |
4328 | printk(KERN_INFO "qla1280: Failed to reserve i/o region " | |
4329 | "0x%04lx-0x%04lx - already in use\n", | |
4330 | host->io_port, host->io_port + 0xff); | |
4331 | goto error_free_response_ring; | |
4332 | } | |
4333 | ||
4334 | ha->iobase = (struct device_reg *)host->io_port; | |
4335 | #endif | |
4336 | ||
4337 | INIT_LIST_HEAD(&ha->done_q); | |
4338 | ||
4339 | /* Disable ISP interrupts. */ | |
4340 | qla1280_disable_intrs(ha); | |
4341 | ||
4342 | if (request_irq(pdev->irq, qla1280_intr_handler, IRQF_SHARED, | |
4343 | "qla1280", ha)) { | |
4344 | printk("qla1280 : Failed to reserve interrupt %d already " | |
4345 | "in use\n", pdev->irq); | |
4346 | goto error_release_region; | |
4347 | } | |
4348 | ||
4349 | /* load the F/W, read paramaters, and init the H/W */ | |
4350 | if (qla1280_initialize_adapter(ha)) { | |
4351 | printk(KERN_INFO "qla1x160: Failed to initialize adapter\n"); | |
4352 | goto error_free_irq; | |
4353 | } | |
4354 | ||
4355 | /* set our host ID (need to do something about our two IDs) */ | |
4356 | host->this_id = ha->bus_settings[0].id; | |
4357 | ||
4358 | pci_set_drvdata(pdev, host); | |
4359 | ||
4360 | error = scsi_add_host(host, &pdev->dev); | |
4361 | if (error) | |
4362 | goto error_disable_adapter; | |
4363 | scsi_scan_host(host); | |
4364 | ||
4365 | return 0; | |
4366 | ||
4367 | error_disable_adapter: | |
4368 | qla1280_disable_intrs(ha); | |
4369 | error_free_irq: | |
4370 | free_irq(pdev->irq, ha); | |
4371 | error_release_region: | |
4372 | #if MEMORY_MAPPED_IO | |
4373 | iounmap(ha->mmpbase); | |
4374 | #else | |
4375 | release_region(host->io_port, 0xff); | |
4376 | #endif | |
4377 | error_free_response_ring: | |
4378 | pci_free_consistent(ha->pdev, | |
4379 | ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)), | |
4380 | ha->response_ring, ha->response_dma); | |
4381 | error_free_request_ring: | |
4382 | pci_free_consistent(ha->pdev, | |
4383 | ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)), | |
4384 | ha->request_ring, ha->request_dma); | |
4385 | error_put_host: | |
4386 | scsi_host_put(host); | |
4387 | error_disable_device: | |
4388 | pci_disable_device(pdev); | |
4389 | error: | |
4390 | return error; | |
4391 | } | |
4392 | ||
4393 | ||
4394 | static void | |
4395 | qla1280_remove_one(struct pci_dev *pdev) | |
4396 | { | |
4397 | struct Scsi_Host *host = pci_get_drvdata(pdev); | |
4398 | struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata; | |
4399 | ||
4400 | scsi_remove_host(host); | |
4401 | ||
4402 | qla1280_disable_intrs(ha); | |
4403 | ||
4404 | free_irq(pdev->irq, ha); | |
4405 | ||
4406 | #if MEMORY_MAPPED_IO | |
4407 | iounmap(ha->mmpbase); | |
4408 | #else | |
4409 | release_region(host->io_port, 0xff); | |
4410 | #endif | |
4411 | ||
4412 | pci_free_consistent(ha->pdev, | |
4413 | ((REQUEST_ENTRY_CNT + 1) * (sizeof(request_t))), | |
4414 | ha->request_ring, ha->request_dma); | |
4415 | pci_free_consistent(ha->pdev, | |
4416 | ((RESPONSE_ENTRY_CNT + 1) * (sizeof(struct response))), | |
4417 | ha->response_ring, ha->response_dma); | |
4418 | ||
4419 | pci_disable_device(pdev); | |
4420 | ||
4421 | scsi_host_put(host); | |
4422 | } | |
4423 | ||
4424 | static struct pci_driver qla1280_pci_driver = { | |
4425 | .name = "qla1280", | |
4426 | .id_table = qla1280_pci_tbl, | |
4427 | .probe = qla1280_probe_one, | |
4428 | .remove = qla1280_remove_one, | |
4429 | }; | |
4430 | ||
4431 | static int __init | |
4432 | qla1280_init(void) | |
4433 | { | |
4434 | if (sizeof(struct srb) > sizeof(struct scsi_pointer)) { | |
4435 | printk(KERN_WARNING | |
4436 | "qla1280: struct srb too big, aborting\n"); | |
4437 | return -EINVAL; | |
4438 | } | |
4439 | ||
4440 | #ifdef MODULE | |
4441 | /* | |
4442 | * If we are called as a module, the qla1280 pointer may not be null | |
4443 | * and it would point to our bootup string, just like on the lilo | |
4444 | * command line. IF not NULL, then process this config string with | |
4445 | * qla1280_setup | |
4446 | * | |
4447 | * Boot time Options | |
4448 | * To add options at boot time add a line to your lilo.conf file like: | |
4449 | * append="qla1280=verbose,max_tags:{{255,255,255,255},{255,255,255,255}}" | |
4450 | * which will result in the first four devices on the first two | |
4451 | * controllers being set to a tagged queue depth of 32. | |
4452 | */ | |
4453 | if (qla1280) | |
4454 | qla1280_setup(qla1280); | |
4455 | #endif | |
4456 | ||
4457 | return pci_register_driver(&qla1280_pci_driver); | |
4458 | } | |
4459 | ||
4460 | static void __exit | |
4461 | qla1280_exit(void) | |
4462 | { | |
4463 | int i; | |
4464 | ||
4465 | pci_unregister_driver(&qla1280_pci_driver); | |
4466 | /* release any allocated firmware images */ | |
4467 | for (i = 0; i < QL_NUM_FW_IMAGES; i++) { | |
4468 | release_firmware(qla1280_fw_tbl[i].fw); | |
4469 | qla1280_fw_tbl[i].fw = NULL; | |
4470 | } | |
4471 | } | |
4472 | ||
4473 | module_init(qla1280_init); | |
4474 | module_exit(qla1280_exit); | |
4475 | ||
4476 | MODULE_AUTHOR("Qlogic & Jes Sorensen"); | |
4477 | MODULE_DESCRIPTION("Qlogic ISP SCSI (qla1x80/qla1x160) driver"); | |
4478 | MODULE_LICENSE("GPL"); | |
4479 | MODULE_FIRMWARE("qlogic/1040.bin"); | |
4480 | MODULE_FIRMWARE("qlogic/1280.bin"); | |
4481 | MODULE_FIRMWARE("qlogic/12160.bin"); | |
4482 | MODULE_VERSION(QLA1280_VERSION); | |
4483 | ||
4484 | /* | |
4485 | * Overrides for Emacs so that we almost follow Linus's tabbing style. | |
4486 | * Emacs will notice this stuff at the end of the file and automatically | |
4487 | * adjust the settings for this buffer only. This must remain at the end | |
4488 | * of the file. | |
4489 | * --------------------------------------------------------------------------- | |
4490 | * Local variables: | |
4491 | * c-basic-offset: 8 | |
4492 | * tab-width: 8 | |
4493 | * End: | |
4494 | */ |