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1da177e4 LT |
1 | /* |
2 | * ipr.c -- driver for IBM Power Linux RAID adapters | |
3 | * | |
4 | * Written By: Brian King <brking@us.ibm.com>, IBM Corporation | |
5 | * | |
6 | * Copyright (C) 2003, 2004 IBM Corporation | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | * | |
22 | */ | |
23 | ||
24 | /* | |
25 | * Notes: | |
26 | * | |
27 | * This driver is used to control the following SCSI adapters: | |
28 | * | |
29 | * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B | |
30 | * | |
31 | * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter | |
32 | * PCI-X Dual Channel Ultra 320 SCSI Adapter | |
33 | * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card | |
34 | * Embedded SCSI adapter on p615 and p655 systems | |
35 | * | |
36 | * Supported Hardware Features: | |
37 | * - Ultra 320 SCSI controller | |
38 | * - PCI-X host interface | |
39 | * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine | |
40 | * - Non-Volatile Write Cache | |
41 | * - Supports attachment of non-RAID disks, tape, and optical devices | |
42 | * - RAID Levels 0, 5, 10 | |
43 | * - Hot spare | |
44 | * - Background Parity Checking | |
45 | * - Background Data Scrubbing | |
46 | * - Ability to increase the capacity of an existing RAID 5 disk array | |
47 | * by adding disks | |
48 | * | |
49 | * Driver Features: | |
50 | * - Tagged command queuing | |
51 | * - Adapter microcode download | |
52 | * - PCI hot plug | |
53 | * - SCSI device hot plug | |
54 | * | |
55 | */ | |
56 | ||
57 | #include <linux/config.h> | |
58 | #include <linux/fs.h> | |
59 | #include <linux/init.h> | |
60 | #include <linux/types.h> | |
61 | #include <linux/errno.h> | |
62 | #include <linux/kernel.h> | |
63 | #include <linux/ioport.h> | |
64 | #include <linux/delay.h> | |
65 | #include <linux/pci.h> | |
66 | #include <linux/wait.h> | |
67 | #include <linux/spinlock.h> | |
68 | #include <linux/sched.h> | |
69 | #include <linux/interrupt.h> | |
70 | #include <linux/blkdev.h> | |
71 | #include <linux/firmware.h> | |
72 | #include <linux/module.h> | |
73 | #include <linux/moduleparam.h> | |
74 | #include <asm/io.h> | |
75 | #include <asm/irq.h> | |
76 | #include <asm/processor.h> | |
77 | #include <scsi/scsi.h> | |
78 | #include <scsi/scsi_host.h> | |
79 | #include <scsi/scsi_tcq.h> | |
80 | #include <scsi/scsi_eh.h> | |
81 | #include <scsi/scsi_cmnd.h> | |
82 | #include <scsi/scsi_request.h> | |
83 | #include "ipr.h" | |
84 | ||
85 | /* | |
86 | * Global Data | |
87 | */ | |
88 | static struct list_head ipr_ioa_head = LIST_HEAD_INIT(ipr_ioa_head); | |
89 | static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL; | |
90 | static unsigned int ipr_max_speed = 1; | |
91 | static int ipr_testmode = 0; | |
92 | static unsigned int ipr_fastfail = 0; | |
93 | static unsigned int ipr_transop_timeout = IPR_OPERATIONAL_TIMEOUT; | |
62275040 | 94 | static unsigned int ipr_enable_cache = 1; |
d3c74871 | 95 | static unsigned int ipr_debug = 0; |
32d29776 | 96 | static int ipr_auto_create = 1; |
1da177e4 LT |
97 | static DEFINE_SPINLOCK(ipr_driver_lock); |
98 | ||
99 | /* This table describes the differences between DMA controller chips */ | |
100 | static const struct ipr_chip_cfg_t ipr_chip_cfg[] = { | |
86f51436 | 101 | { /* Gemstone, Citrine, and Obsidian */ |
1da177e4 LT |
102 | .mailbox = 0x0042C, |
103 | .cache_line_size = 0x20, | |
104 | { | |
105 | .set_interrupt_mask_reg = 0x0022C, | |
106 | .clr_interrupt_mask_reg = 0x00230, | |
107 | .sense_interrupt_mask_reg = 0x0022C, | |
108 | .clr_interrupt_reg = 0x00228, | |
109 | .sense_interrupt_reg = 0x00224, | |
110 | .ioarrin_reg = 0x00404, | |
111 | .sense_uproc_interrupt_reg = 0x00214, | |
112 | .set_uproc_interrupt_reg = 0x00214, | |
113 | .clr_uproc_interrupt_reg = 0x00218 | |
114 | } | |
115 | }, | |
116 | { /* Snipe and Scamp */ | |
117 | .mailbox = 0x0052C, | |
118 | .cache_line_size = 0x20, | |
119 | { | |
120 | .set_interrupt_mask_reg = 0x00288, | |
121 | .clr_interrupt_mask_reg = 0x0028C, | |
122 | .sense_interrupt_mask_reg = 0x00288, | |
123 | .clr_interrupt_reg = 0x00284, | |
124 | .sense_interrupt_reg = 0x00280, | |
125 | .ioarrin_reg = 0x00504, | |
126 | .sense_uproc_interrupt_reg = 0x00290, | |
127 | .set_uproc_interrupt_reg = 0x00290, | |
128 | .clr_uproc_interrupt_reg = 0x00294 | |
129 | } | |
130 | }, | |
131 | }; | |
132 | ||
133 | static const struct ipr_chip_t ipr_chip[] = { | |
134 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, &ipr_chip_cfg[0] }, | |
135 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, &ipr_chip_cfg[0] }, | |
86f51436 BK |
136 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, &ipr_chip_cfg[0] }, |
137 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, &ipr_chip_cfg[0] }, | |
1da177e4 LT |
138 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, &ipr_chip_cfg[1] }, |
139 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, &ipr_chip_cfg[1] } | |
140 | }; | |
141 | ||
142 | static int ipr_max_bus_speeds [] = { | |
143 | IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE | |
144 | }; | |
145 | ||
146 | MODULE_AUTHOR("Brian King <brking@us.ibm.com>"); | |
147 | MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver"); | |
148 | module_param_named(max_speed, ipr_max_speed, uint, 0); | |
149 | MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320"); | |
150 | module_param_named(log_level, ipr_log_level, uint, 0); | |
151 | MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver"); | |
152 | module_param_named(testmode, ipr_testmode, int, 0); | |
153 | MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations"); | |
154 | module_param_named(fastfail, ipr_fastfail, int, 0); | |
155 | MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries"); | |
156 | module_param_named(transop_timeout, ipr_transop_timeout, int, 0); | |
157 | MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)"); | |
62275040 BK |
158 | module_param_named(enable_cache, ipr_enable_cache, int, 0); |
159 | MODULE_PARM_DESC(enable_cache, "Enable adapter's non-volatile write cache (default: 1)"); | |
d3c74871 BK |
160 | module_param_named(debug, ipr_debug, int, 0); |
161 | MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)"); | |
32d29776 BK |
162 | module_param_named(auto_create, ipr_auto_create, int, 0); |
163 | MODULE_PARM_DESC(auto_create, "Auto-create single device RAID 0 arrays when initialized (default: 1)"); | |
1da177e4 LT |
164 | MODULE_LICENSE("GPL"); |
165 | MODULE_VERSION(IPR_DRIVER_VERSION); | |
166 | ||
1da177e4 LT |
167 | /* A constant array of IOASCs/URCs/Error Messages */ |
168 | static const | |
169 | struct ipr_error_table_t ipr_error_table[] = { | |
170 | {0x00000000, 1, 1, | |
171 | "8155: An unknown error was received"}, | |
172 | {0x00330000, 0, 0, | |
173 | "Soft underlength error"}, | |
174 | {0x005A0000, 0, 0, | |
175 | "Command to be cancelled not found"}, | |
176 | {0x00808000, 0, 0, | |
177 | "Qualified success"}, | |
178 | {0x01080000, 1, 1, | |
179 | "FFFE: Soft device bus error recovered by the IOA"}, | |
180 | {0x01170600, 0, 1, | |
181 | "FFF9: Device sector reassign successful"}, | |
182 | {0x01170900, 0, 1, | |
183 | "FFF7: Media error recovered by device rewrite procedures"}, | |
184 | {0x01180200, 0, 1, | |
185 | "7001: IOA sector reassignment successful"}, | |
186 | {0x01180500, 0, 1, | |
187 | "FFF9: Soft media error. Sector reassignment recommended"}, | |
188 | {0x01180600, 0, 1, | |
189 | "FFF7: Media error recovered by IOA rewrite procedures"}, | |
190 | {0x01418000, 0, 1, | |
191 | "FF3D: Soft PCI bus error recovered by the IOA"}, | |
192 | {0x01440000, 1, 1, | |
193 | "FFF6: Device hardware error recovered by the IOA"}, | |
194 | {0x01448100, 0, 1, | |
195 | "FFF6: Device hardware error recovered by the device"}, | |
196 | {0x01448200, 1, 1, | |
197 | "FF3D: Soft IOA error recovered by the IOA"}, | |
198 | {0x01448300, 0, 1, | |
199 | "FFFA: Undefined device response recovered by the IOA"}, | |
200 | {0x014A0000, 1, 1, | |
201 | "FFF6: Device bus error, message or command phase"}, | |
202 | {0x015D0000, 0, 1, | |
203 | "FFF6: Failure prediction threshold exceeded"}, | |
204 | {0x015D9200, 0, 1, | |
205 | "8009: Impending cache battery pack failure"}, | |
206 | {0x02040400, 0, 0, | |
207 | "34FF: Disk device format in progress"}, | |
208 | {0x023F0000, 0, 0, | |
209 | "Synchronization required"}, | |
210 | {0x024E0000, 0, 0, | |
211 | "No ready, IOA shutdown"}, | |
212 | {0x025A0000, 0, 0, | |
213 | "Not ready, IOA has been shutdown"}, | |
214 | {0x02670100, 0, 1, | |
215 | "3020: Storage subsystem configuration error"}, | |
216 | {0x03110B00, 0, 0, | |
217 | "FFF5: Medium error, data unreadable, recommend reassign"}, | |
218 | {0x03110C00, 0, 0, | |
219 | "7000: Medium error, data unreadable, do not reassign"}, | |
220 | {0x03310000, 0, 1, | |
221 | "FFF3: Disk media format bad"}, | |
222 | {0x04050000, 0, 1, | |
223 | "3002: Addressed device failed to respond to selection"}, | |
224 | {0x04080000, 1, 1, | |
225 | "3100: Device bus error"}, | |
226 | {0x04080100, 0, 1, | |
227 | "3109: IOA timed out a device command"}, | |
228 | {0x04088000, 0, 0, | |
229 | "3120: SCSI bus is not operational"}, | |
230 | {0x04118000, 0, 1, | |
231 | "9000: IOA reserved area data check"}, | |
232 | {0x04118100, 0, 1, | |
233 | "9001: IOA reserved area invalid data pattern"}, | |
234 | {0x04118200, 0, 1, | |
235 | "9002: IOA reserved area LRC error"}, | |
236 | {0x04320000, 0, 1, | |
237 | "102E: Out of alternate sectors for disk storage"}, | |
238 | {0x04330000, 1, 1, | |
239 | "FFF4: Data transfer underlength error"}, | |
240 | {0x04338000, 1, 1, | |
241 | "FFF4: Data transfer overlength error"}, | |
242 | {0x043E0100, 0, 1, | |
243 | "3400: Logical unit failure"}, | |
244 | {0x04408500, 0, 1, | |
245 | "FFF4: Device microcode is corrupt"}, | |
246 | {0x04418000, 1, 1, | |
247 | "8150: PCI bus error"}, | |
248 | {0x04430000, 1, 0, | |
249 | "Unsupported device bus message received"}, | |
250 | {0x04440000, 1, 1, | |
251 | "FFF4: Disk device problem"}, | |
252 | {0x04448200, 1, 1, | |
253 | "8150: Permanent IOA failure"}, | |
254 | {0x04448300, 0, 1, | |
255 | "3010: Disk device returned wrong response to IOA"}, | |
256 | {0x04448400, 0, 1, | |
257 | "8151: IOA microcode error"}, | |
258 | {0x04448500, 0, 0, | |
259 | "Device bus status error"}, | |
260 | {0x04448600, 0, 1, | |
261 | "8157: IOA error requiring IOA reset to recover"}, | |
262 | {0x04490000, 0, 0, | |
263 | "Message reject received from the device"}, | |
264 | {0x04449200, 0, 1, | |
265 | "8008: A permanent cache battery pack failure occurred"}, | |
266 | {0x0444A000, 0, 1, | |
267 | "9090: Disk unit has been modified after the last known status"}, | |
268 | {0x0444A200, 0, 1, | |
269 | "9081: IOA detected device error"}, | |
270 | {0x0444A300, 0, 1, | |
271 | "9082: IOA detected device error"}, | |
272 | {0x044A0000, 1, 1, | |
273 | "3110: Device bus error, message or command phase"}, | |
274 | {0x04670400, 0, 1, | |
275 | "9091: Incorrect hardware configuration change has been detected"}, | |
b0df54bb BK |
276 | {0x04678000, 0, 1, |
277 | "9073: Invalid multi-adapter configuration"}, | |
1da177e4 LT |
278 | {0x046E0000, 0, 1, |
279 | "FFF4: Command to logical unit failed"}, | |
280 | {0x05240000, 1, 0, | |
281 | "Illegal request, invalid request type or request packet"}, | |
282 | {0x05250000, 0, 0, | |
283 | "Illegal request, invalid resource handle"}, | |
b0df54bb BK |
284 | {0x05258000, 0, 0, |
285 | "Illegal request, commands not allowed to this device"}, | |
286 | {0x05258100, 0, 0, | |
287 | "Illegal request, command not allowed to a secondary adapter"}, | |
1da177e4 LT |
288 | {0x05260000, 0, 0, |
289 | "Illegal request, invalid field in parameter list"}, | |
290 | {0x05260100, 0, 0, | |
291 | "Illegal request, parameter not supported"}, | |
292 | {0x05260200, 0, 0, | |
293 | "Illegal request, parameter value invalid"}, | |
294 | {0x052C0000, 0, 0, | |
295 | "Illegal request, command sequence error"}, | |
b0df54bb BK |
296 | {0x052C8000, 1, 0, |
297 | "Illegal request, dual adapter support not enabled"}, | |
1da177e4 LT |
298 | {0x06040500, 0, 1, |
299 | "9031: Array protection temporarily suspended, protection resuming"}, | |
300 | {0x06040600, 0, 1, | |
301 | "9040: Array protection temporarily suspended, protection resuming"}, | |
302 | {0x06290000, 0, 1, | |
303 | "FFFB: SCSI bus was reset"}, | |
304 | {0x06290500, 0, 0, | |
305 | "FFFE: SCSI bus transition to single ended"}, | |
306 | {0x06290600, 0, 0, | |
307 | "FFFE: SCSI bus transition to LVD"}, | |
308 | {0x06298000, 0, 1, | |
309 | "FFFB: SCSI bus was reset by another initiator"}, | |
310 | {0x063F0300, 0, 1, | |
311 | "3029: A device replacement has occurred"}, | |
312 | {0x064C8000, 0, 1, | |
313 | "9051: IOA cache data exists for a missing or failed device"}, | |
b0df54bb BK |
314 | {0x064C8100, 0, 1, |
315 | "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"}, | |
1da177e4 LT |
316 | {0x06670100, 0, 1, |
317 | "9025: Disk unit is not supported at its physical location"}, | |
318 | {0x06670600, 0, 1, | |
319 | "3020: IOA detected a SCSI bus configuration error"}, | |
320 | {0x06678000, 0, 1, | |
321 | "3150: SCSI bus configuration error"}, | |
b0df54bb BK |
322 | {0x06678100, 0, 1, |
323 | "9074: Asymmetric advanced function disk configuration"}, | |
1da177e4 LT |
324 | {0x06690200, 0, 1, |
325 | "9041: Array protection temporarily suspended"}, | |
326 | {0x06698200, 0, 1, | |
327 | "9042: Corrupt array parity detected on specified device"}, | |
328 | {0x066B0200, 0, 1, | |
329 | "9030: Array no longer protected due to missing or failed disk unit"}, | |
b0df54bb BK |
330 | {0x066B8000, 0, 1, |
331 | "9071: Link operational transition"}, | |
332 | {0x066B8100, 0, 1, | |
333 | "9072: Link not operational transition"}, | |
1da177e4 LT |
334 | {0x066B8200, 0, 1, |
335 | "9032: Array exposed but still protected"}, | |
336 | {0x07270000, 0, 0, | |
337 | "Failure due to other device"}, | |
338 | {0x07278000, 0, 1, | |
339 | "9008: IOA does not support functions expected by devices"}, | |
340 | {0x07278100, 0, 1, | |
341 | "9010: Cache data associated with attached devices cannot be found"}, | |
342 | {0x07278200, 0, 1, | |
343 | "9011: Cache data belongs to devices other than those attached"}, | |
344 | {0x07278400, 0, 1, | |
345 | "9020: Array missing 2 or more devices with only 1 device present"}, | |
346 | {0x07278500, 0, 1, | |
347 | "9021: Array missing 2 or more devices with 2 or more devices present"}, | |
348 | {0x07278600, 0, 1, | |
349 | "9022: Exposed array is missing a required device"}, | |
350 | {0x07278700, 0, 1, | |
351 | "9023: Array member(s) not at required physical locations"}, | |
352 | {0x07278800, 0, 1, | |
353 | "9024: Array not functional due to present hardware configuration"}, | |
354 | {0x07278900, 0, 1, | |
355 | "9026: Array not functional due to present hardware configuration"}, | |
356 | {0x07278A00, 0, 1, | |
357 | "9027: Array is missing a device and parity is out of sync"}, | |
358 | {0x07278B00, 0, 1, | |
359 | "9028: Maximum number of arrays already exist"}, | |
360 | {0x07278C00, 0, 1, | |
361 | "9050: Required cache data cannot be located for a disk unit"}, | |
362 | {0x07278D00, 0, 1, | |
363 | "9052: Cache data exists for a device that has been modified"}, | |
364 | {0x07278F00, 0, 1, | |
365 | "9054: IOA resources not available due to previous problems"}, | |
366 | {0x07279100, 0, 1, | |
367 | "9092: Disk unit requires initialization before use"}, | |
368 | {0x07279200, 0, 1, | |
369 | "9029: Incorrect hardware configuration change has been detected"}, | |
370 | {0x07279600, 0, 1, | |
371 | "9060: One or more disk pairs are missing from an array"}, | |
372 | {0x07279700, 0, 1, | |
373 | "9061: One or more disks are missing from an array"}, | |
374 | {0x07279800, 0, 1, | |
375 | "9062: One or more disks are missing from an array"}, | |
376 | {0x07279900, 0, 1, | |
377 | "9063: Maximum number of functional arrays has been exceeded"}, | |
378 | {0x0B260000, 0, 0, | |
379 | "Aborted command, invalid descriptor"}, | |
380 | {0x0B5A0000, 0, 0, | |
381 | "Command terminated by host"} | |
382 | }; | |
383 | ||
384 | static const struct ipr_ses_table_entry ipr_ses_table[] = { | |
385 | { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 }, | |
386 | { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 }, | |
387 | { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */ | |
388 | { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */ | |
389 | { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */ | |
390 | { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */ | |
391 | { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 }, | |
392 | { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 }, | |
393 | { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, | |
394 | { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, | |
395 | { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 }, | |
396 | { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 }, | |
397 | { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 } | |
398 | }; | |
399 | ||
400 | /* | |
401 | * Function Prototypes | |
402 | */ | |
403 | static int ipr_reset_alert(struct ipr_cmnd *); | |
404 | static void ipr_process_ccn(struct ipr_cmnd *); | |
405 | static void ipr_process_error(struct ipr_cmnd *); | |
406 | static void ipr_reset_ioa_job(struct ipr_cmnd *); | |
407 | static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *, | |
408 | enum ipr_shutdown_type); | |
409 | ||
410 | #ifdef CONFIG_SCSI_IPR_TRACE | |
411 | /** | |
412 | * ipr_trc_hook - Add a trace entry to the driver trace | |
413 | * @ipr_cmd: ipr command struct | |
414 | * @type: trace type | |
415 | * @add_data: additional data | |
416 | * | |
417 | * Return value: | |
418 | * none | |
419 | **/ | |
420 | static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd, | |
421 | u8 type, u32 add_data) | |
422 | { | |
423 | struct ipr_trace_entry *trace_entry; | |
424 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
425 | ||
426 | trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++]; | |
427 | trace_entry->time = jiffies; | |
428 | trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0]; | |
429 | trace_entry->type = type; | |
430 | trace_entry->cmd_index = ipr_cmd->cmd_index; | |
431 | trace_entry->res_handle = ipr_cmd->ioarcb.res_handle; | |
432 | trace_entry->u.add_data = add_data; | |
433 | } | |
434 | #else | |
435 | #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0) | |
436 | #endif | |
437 | ||
438 | /** | |
439 | * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse | |
440 | * @ipr_cmd: ipr command struct | |
441 | * | |
442 | * Return value: | |
443 | * none | |
444 | **/ | |
445 | static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd) | |
446 | { | |
447 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
448 | struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; | |
449 | ||
450 | memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); | |
451 | ioarcb->write_data_transfer_length = 0; | |
452 | ioarcb->read_data_transfer_length = 0; | |
453 | ioarcb->write_ioadl_len = 0; | |
454 | ioarcb->read_ioadl_len = 0; | |
455 | ioasa->ioasc = 0; | |
456 | ioasa->residual_data_len = 0; | |
457 | ||
458 | ipr_cmd->scsi_cmd = NULL; | |
459 | ipr_cmd->sense_buffer[0] = 0; | |
460 | ipr_cmd->dma_use_sg = 0; | |
461 | } | |
462 | ||
463 | /** | |
464 | * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block | |
465 | * @ipr_cmd: ipr command struct | |
466 | * | |
467 | * Return value: | |
468 | * none | |
469 | **/ | |
470 | static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd) | |
471 | { | |
472 | ipr_reinit_ipr_cmnd(ipr_cmd); | |
473 | ipr_cmd->u.scratch = 0; | |
474 | ipr_cmd->sibling = NULL; | |
475 | init_timer(&ipr_cmd->timer); | |
476 | } | |
477 | ||
478 | /** | |
479 | * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block | |
480 | * @ioa_cfg: ioa config struct | |
481 | * | |
482 | * Return value: | |
483 | * pointer to ipr command struct | |
484 | **/ | |
485 | static | |
486 | struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg) | |
487 | { | |
488 | struct ipr_cmnd *ipr_cmd; | |
489 | ||
490 | ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue); | |
491 | list_del(&ipr_cmd->queue); | |
492 | ipr_init_ipr_cmnd(ipr_cmd); | |
493 | ||
494 | return ipr_cmd; | |
495 | } | |
496 | ||
497 | /** | |
498 | * ipr_unmap_sglist - Unmap scatterlist if mapped | |
499 | * @ioa_cfg: ioa config struct | |
500 | * @ipr_cmd: ipr command struct | |
501 | * | |
502 | * Return value: | |
503 | * nothing | |
504 | **/ | |
505 | static void ipr_unmap_sglist(struct ipr_ioa_cfg *ioa_cfg, | |
506 | struct ipr_cmnd *ipr_cmd) | |
507 | { | |
508 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
509 | ||
510 | if (ipr_cmd->dma_use_sg) { | |
511 | if (scsi_cmd->use_sg > 0) { | |
512 | pci_unmap_sg(ioa_cfg->pdev, scsi_cmd->request_buffer, | |
513 | scsi_cmd->use_sg, | |
514 | scsi_cmd->sc_data_direction); | |
515 | } else { | |
516 | pci_unmap_single(ioa_cfg->pdev, ipr_cmd->dma_handle, | |
517 | scsi_cmd->request_bufflen, | |
518 | scsi_cmd->sc_data_direction); | |
519 | } | |
520 | } | |
521 | } | |
522 | ||
523 | /** | |
524 | * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts | |
525 | * @ioa_cfg: ioa config struct | |
526 | * @clr_ints: interrupts to clear | |
527 | * | |
528 | * This function masks all interrupts on the adapter, then clears the | |
529 | * interrupts specified in the mask | |
530 | * | |
531 | * Return value: | |
532 | * none | |
533 | **/ | |
534 | static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg, | |
535 | u32 clr_ints) | |
536 | { | |
537 | volatile u32 int_reg; | |
538 | ||
539 | /* Stop new interrupts */ | |
540 | ioa_cfg->allow_interrupts = 0; | |
541 | ||
542 | /* Set interrupt mask to stop all new interrupts */ | |
543 | writel(~0, ioa_cfg->regs.set_interrupt_mask_reg); | |
544 | ||
545 | /* Clear any pending interrupts */ | |
546 | writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg); | |
547 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
548 | } | |
549 | ||
550 | /** | |
551 | * ipr_save_pcix_cmd_reg - Save PCI-X command register | |
552 | * @ioa_cfg: ioa config struct | |
553 | * | |
554 | * Return value: | |
555 | * 0 on success / -EIO on failure | |
556 | **/ | |
557 | static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) | |
558 | { | |
559 | int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); | |
560 | ||
561 | if (pcix_cmd_reg == 0) { | |
562 | dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); | |
563 | return -EIO; | |
564 | } | |
565 | ||
566 | if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, | |
567 | &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { | |
568 | dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); | |
569 | return -EIO; | |
570 | } | |
571 | ||
572 | ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO; | |
573 | return 0; | |
574 | } | |
575 | ||
576 | /** | |
577 | * ipr_set_pcix_cmd_reg - Setup PCI-X command register | |
578 | * @ioa_cfg: ioa config struct | |
579 | * | |
580 | * Return value: | |
581 | * 0 on success / -EIO on failure | |
582 | **/ | |
583 | static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) | |
584 | { | |
585 | int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); | |
586 | ||
587 | if (pcix_cmd_reg) { | |
588 | if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, | |
589 | ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { | |
590 | dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n"); | |
591 | return -EIO; | |
592 | } | |
593 | } else { | |
594 | dev_err(&ioa_cfg->pdev->dev, | |
595 | "Failed to setup PCI-X command register\n"); | |
596 | return -EIO; | |
597 | } | |
598 | ||
599 | return 0; | |
600 | } | |
601 | ||
602 | /** | |
603 | * ipr_scsi_eh_done - mid-layer done function for aborted ops | |
604 | * @ipr_cmd: ipr command struct | |
605 | * | |
606 | * This function is invoked by the interrupt handler for | |
607 | * ops generated by the SCSI mid-layer which are being aborted. | |
608 | * | |
609 | * Return value: | |
610 | * none | |
611 | **/ | |
612 | static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) | |
613 | { | |
614 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
615 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
616 | ||
617 | scsi_cmd->result |= (DID_ERROR << 16); | |
618 | ||
619 | ipr_unmap_sglist(ioa_cfg, ipr_cmd); | |
620 | scsi_cmd->scsi_done(scsi_cmd); | |
621 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
622 | } | |
623 | ||
624 | /** | |
625 | * ipr_fail_all_ops - Fails all outstanding ops. | |
626 | * @ioa_cfg: ioa config struct | |
627 | * | |
628 | * This function fails all outstanding ops. | |
629 | * | |
630 | * Return value: | |
631 | * none | |
632 | **/ | |
633 | static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg) | |
634 | { | |
635 | struct ipr_cmnd *ipr_cmd, *temp; | |
636 | ||
637 | ENTER; | |
638 | list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) { | |
639 | list_del(&ipr_cmd->queue); | |
640 | ||
641 | ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET); | |
642 | ipr_cmd->ioasa.ilid = cpu_to_be32(IPR_DRIVER_ILID); | |
643 | ||
644 | if (ipr_cmd->scsi_cmd) | |
645 | ipr_cmd->done = ipr_scsi_eh_done; | |
646 | ||
647 | ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET); | |
648 | del_timer(&ipr_cmd->timer); | |
649 | ipr_cmd->done(ipr_cmd); | |
650 | } | |
651 | ||
652 | LEAVE; | |
653 | } | |
654 | ||
655 | /** | |
656 | * ipr_do_req - Send driver initiated requests. | |
657 | * @ipr_cmd: ipr command struct | |
658 | * @done: done function | |
659 | * @timeout_func: timeout function | |
660 | * @timeout: timeout value | |
661 | * | |
662 | * This function sends the specified command to the adapter with the | |
663 | * timeout given. The done function is invoked on command completion. | |
664 | * | |
665 | * Return value: | |
666 | * none | |
667 | **/ | |
668 | static void ipr_do_req(struct ipr_cmnd *ipr_cmd, | |
669 | void (*done) (struct ipr_cmnd *), | |
670 | void (*timeout_func) (struct ipr_cmnd *), u32 timeout) | |
671 | { | |
672 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
673 | ||
674 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
675 | ||
676 | ipr_cmd->done = done; | |
677 | ||
678 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; | |
679 | ipr_cmd->timer.expires = jiffies + timeout; | |
680 | ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func; | |
681 | ||
682 | add_timer(&ipr_cmd->timer); | |
683 | ||
684 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0); | |
685 | ||
686 | mb(); | |
687 | writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), | |
688 | ioa_cfg->regs.ioarrin_reg); | |
689 | } | |
690 | ||
691 | /** | |
692 | * ipr_internal_cmd_done - Op done function for an internally generated op. | |
693 | * @ipr_cmd: ipr command struct | |
694 | * | |
695 | * This function is the op done function for an internally generated, | |
696 | * blocking op. It simply wakes the sleeping thread. | |
697 | * | |
698 | * Return value: | |
699 | * none | |
700 | **/ | |
701 | static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd) | |
702 | { | |
703 | if (ipr_cmd->sibling) | |
704 | ipr_cmd->sibling = NULL; | |
705 | else | |
706 | complete(&ipr_cmd->completion); | |
707 | } | |
708 | ||
709 | /** | |
710 | * ipr_send_blocking_cmd - Send command and sleep on its completion. | |
711 | * @ipr_cmd: ipr command struct | |
712 | * @timeout_func: function to invoke if command times out | |
713 | * @timeout: timeout | |
714 | * | |
715 | * Return value: | |
716 | * none | |
717 | **/ | |
718 | static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd, | |
719 | void (*timeout_func) (struct ipr_cmnd *ipr_cmd), | |
720 | u32 timeout) | |
721 | { | |
722 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
723 | ||
724 | init_completion(&ipr_cmd->completion); | |
725 | ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout); | |
726 | ||
727 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
728 | wait_for_completion(&ipr_cmd->completion); | |
729 | spin_lock_irq(ioa_cfg->host->host_lock); | |
730 | } | |
731 | ||
732 | /** | |
733 | * ipr_send_hcam - Send an HCAM to the adapter. | |
734 | * @ioa_cfg: ioa config struct | |
735 | * @type: HCAM type | |
736 | * @hostrcb: hostrcb struct | |
737 | * | |
738 | * This function will send a Host Controlled Async command to the adapter. | |
739 | * If HCAMs are currently not allowed to be issued to the adapter, it will | |
740 | * place the hostrcb on the free queue. | |
741 | * | |
742 | * Return value: | |
743 | * none | |
744 | **/ | |
745 | static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type, | |
746 | struct ipr_hostrcb *hostrcb) | |
747 | { | |
748 | struct ipr_cmnd *ipr_cmd; | |
749 | struct ipr_ioarcb *ioarcb; | |
750 | ||
751 | if (ioa_cfg->allow_cmds) { | |
752 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
753 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
754 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q); | |
755 | ||
756 | ipr_cmd->u.hostrcb = hostrcb; | |
757 | ioarcb = &ipr_cmd->ioarcb; | |
758 | ||
759 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
760 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM; | |
761 | ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC; | |
762 | ioarcb->cmd_pkt.cdb[1] = type; | |
763 | ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff; | |
764 | ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff; | |
765 | ||
766 | ioarcb->read_data_transfer_length = cpu_to_be32(sizeof(hostrcb->hcam)); | |
767 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
768 | ipr_cmd->ioadl[0].flags_and_data_len = | |
769 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(hostrcb->hcam)); | |
770 | ipr_cmd->ioadl[0].address = cpu_to_be32(hostrcb->hostrcb_dma); | |
771 | ||
772 | if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE) | |
773 | ipr_cmd->done = ipr_process_ccn; | |
774 | else | |
775 | ipr_cmd->done = ipr_process_error; | |
776 | ||
777 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR); | |
778 | ||
779 | mb(); | |
780 | writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), | |
781 | ioa_cfg->regs.ioarrin_reg); | |
782 | } else { | |
783 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); | |
784 | } | |
785 | } | |
786 | ||
787 | /** | |
788 | * ipr_init_res_entry - Initialize a resource entry struct. | |
789 | * @res: resource entry struct | |
790 | * | |
791 | * Return value: | |
792 | * none | |
793 | **/ | |
794 | static void ipr_init_res_entry(struct ipr_resource_entry *res) | |
795 | { | |
ee0a90fa | 796 | res->needs_sync_complete = 0; |
1da177e4 LT |
797 | res->in_erp = 0; |
798 | res->add_to_ml = 0; | |
799 | res->del_from_ml = 0; | |
800 | res->resetting_device = 0; | |
801 | res->sdev = NULL; | |
802 | } | |
803 | ||
804 | /** | |
805 | * ipr_handle_config_change - Handle a config change from the adapter | |
806 | * @ioa_cfg: ioa config struct | |
807 | * @hostrcb: hostrcb | |
808 | * | |
809 | * Return value: | |
810 | * none | |
811 | **/ | |
812 | static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg, | |
813 | struct ipr_hostrcb *hostrcb) | |
814 | { | |
815 | struct ipr_resource_entry *res = NULL; | |
816 | struct ipr_config_table_entry *cfgte; | |
817 | u32 is_ndn = 1; | |
818 | ||
819 | cfgte = &hostrcb->hcam.u.ccn.cfgte; | |
820 | ||
821 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
822 | if (!memcmp(&res->cfgte.res_addr, &cfgte->res_addr, | |
823 | sizeof(cfgte->res_addr))) { | |
824 | is_ndn = 0; | |
825 | break; | |
826 | } | |
827 | } | |
828 | ||
829 | if (is_ndn) { | |
830 | if (list_empty(&ioa_cfg->free_res_q)) { | |
831 | ipr_send_hcam(ioa_cfg, | |
832 | IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, | |
833 | hostrcb); | |
834 | return; | |
835 | } | |
836 | ||
837 | res = list_entry(ioa_cfg->free_res_q.next, | |
838 | struct ipr_resource_entry, queue); | |
839 | ||
840 | list_del(&res->queue); | |
841 | ipr_init_res_entry(res); | |
842 | list_add_tail(&res->queue, &ioa_cfg->used_res_q); | |
843 | } | |
844 | ||
845 | memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry)); | |
846 | ||
847 | if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) { | |
848 | if (res->sdev) { | |
1da177e4 | 849 | res->del_from_ml = 1; |
1121b794 | 850 | res->cfgte.res_handle = IPR_INVALID_RES_HANDLE; |
1da177e4 LT |
851 | if (ioa_cfg->allow_ml_add_del) |
852 | schedule_work(&ioa_cfg->work_q); | |
853 | } else | |
854 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); | |
855 | } else if (!res->sdev) { | |
856 | res->add_to_ml = 1; | |
857 | if (ioa_cfg->allow_ml_add_del) | |
858 | schedule_work(&ioa_cfg->work_q); | |
859 | } | |
860 | ||
861 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); | |
862 | } | |
863 | ||
864 | /** | |
865 | * ipr_process_ccn - Op done function for a CCN. | |
866 | * @ipr_cmd: ipr command struct | |
867 | * | |
868 | * This function is the op done function for a configuration | |
869 | * change notification host controlled async from the adapter. | |
870 | * | |
871 | * Return value: | |
872 | * none | |
873 | **/ | |
874 | static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd) | |
875 | { | |
876 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
877 | struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; | |
878 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
879 | ||
880 | list_del(&hostrcb->queue); | |
881 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
882 | ||
883 | if (ioasc) { | |
884 | if (ioasc != IPR_IOASC_IOA_WAS_RESET) | |
885 | dev_err(&ioa_cfg->pdev->dev, | |
886 | "Host RCB failed with IOASC: 0x%08X\n", ioasc); | |
887 | ||
888 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); | |
889 | } else { | |
890 | ipr_handle_config_change(ioa_cfg, hostrcb); | |
891 | } | |
892 | } | |
893 | ||
894 | /** | |
895 | * ipr_log_vpd - Log the passed VPD to the error log. | |
cfc32139 | 896 | * @vpd: vendor/product id/sn struct |
1da177e4 LT |
897 | * |
898 | * Return value: | |
899 | * none | |
900 | **/ | |
cfc32139 | 901 | static void ipr_log_vpd(struct ipr_vpd *vpd) |
1da177e4 LT |
902 | { |
903 | char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN | |
904 | + IPR_SERIAL_NUM_LEN]; | |
905 | ||
cfc32139 BK |
906 | memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); |
907 | memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id, | |
1da177e4 LT |
908 | IPR_PROD_ID_LEN); |
909 | buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0'; | |
910 | ipr_err("Vendor/Product ID: %s\n", buffer); | |
911 | ||
cfc32139 | 912 | memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN); |
1da177e4 LT |
913 | buffer[IPR_SERIAL_NUM_LEN] = '\0'; |
914 | ipr_err(" Serial Number: %s\n", buffer); | |
915 | } | |
916 | ||
ee0f05b8 BK |
917 | /** |
918 | * ipr_log_ext_vpd - Log the passed extended VPD to the error log. | |
919 | * @vpd: vendor/product id/sn/wwn struct | |
920 | * | |
921 | * Return value: | |
922 | * none | |
923 | **/ | |
924 | static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd) | |
925 | { | |
926 | ipr_log_vpd(&vpd->vpd); | |
927 | ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]), | |
928 | be32_to_cpu(vpd->wwid[1])); | |
929 | } | |
930 | ||
931 | /** | |
932 | * ipr_log_enhanced_cache_error - Log a cache error. | |
933 | * @ioa_cfg: ioa config struct | |
934 | * @hostrcb: hostrcb struct | |
935 | * | |
936 | * Return value: | |
937 | * none | |
938 | **/ | |
939 | static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg, | |
940 | struct ipr_hostrcb *hostrcb) | |
941 | { | |
942 | struct ipr_hostrcb_type_12_error *error = | |
943 | &hostrcb->hcam.u.error.u.type_12_error; | |
944 | ||
945 | ipr_err("-----Current Configuration-----\n"); | |
946 | ipr_err("Cache Directory Card Information:\n"); | |
947 | ipr_log_ext_vpd(&error->ioa_vpd); | |
948 | ipr_err("Adapter Card Information:\n"); | |
949 | ipr_log_ext_vpd(&error->cfc_vpd); | |
950 | ||
951 | ipr_err("-----Expected Configuration-----\n"); | |
952 | ipr_err("Cache Directory Card Information:\n"); | |
953 | ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd); | |
954 | ipr_err("Adapter Card Information:\n"); | |
955 | ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd); | |
956 | ||
957 | ipr_err("Additional IOA Data: %08X %08X %08X\n", | |
958 | be32_to_cpu(error->ioa_data[0]), | |
959 | be32_to_cpu(error->ioa_data[1]), | |
960 | be32_to_cpu(error->ioa_data[2])); | |
961 | } | |
962 | ||
1da177e4 LT |
963 | /** |
964 | * ipr_log_cache_error - Log a cache error. | |
965 | * @ioa_cfg: ioa config struct | |
966 | * @hostrcb: hostrcb struct | |
967 | * | |
968 | * Return value: | |
969 | * none | |
970 | **/ | |
971 | static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg, | |
972 | struct ipr_hostrcb *hostrcb) | |
973 | { | |
974 | struct ipr_hostrcb_type_02_error *error = | |
975 | &hostrcb->hcam.u.error.u.type_02_error; | |
976 | ||
977 | ipr_err("-----Current Configuration-----\n"); | |
978 | ipr_err("Cache Directory Card Information:\n"); | |
cfc32139 | 979 | ipr_log_vpd(&error->ioa_vpd); |
1da177e4 | 980 | ipr_err("Adapter Card Information:\n"); |
cfc32139 | 981 | ipr_log_vpd(&error->cfc_vpd); |
1da177e4 LT |
982 | |
983 | ipr_err("-----Expected Configuration-----\n"); | |
984 | ipr_err("Cache Directory Card Information:\n"); | |
cfc32139 | 985 | ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd); |
1da177e4 | 986 | ipr_err("Adapter Card Information:\n"); |
cfc32139 | 987 | ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd); |
1da177e4 LT |
988 | |
989 | ipr_err("Additional IOA Data: %08X %08X %08X\n", | |
990 | be32_to_cpu(error->ioa_data[0]), | |
991 | be32_to_cpu(error->ioa_data[1]), | |
992 | be32_to_cpu(error->ioa_data[2])); | |
993 | } | |
994 | ||
ee0f05b8 BK |
995 | /** |
996 | * ipr_log_enhanced_config_error - Log a configuration error. | |
997 | * @ioa_cfg: ioa config struct | |
998 | * @hostrcb: hostrcb struct | |
999 | * | |
1000 | * Return value: | |
1001 | * none | |
1002 | **/ | |
1003 | static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg, | |
1004 | struct ipr_hostrcb *hostrcb) | |
1005 | { | |
1006 | int errors_logged, i; | |
1007 | struct ipr_hostrcb_device_data_entry_enhanced *dev_entry; | |
1008 | struct ipr_hostrcb_type_13_error *error; | |
1009 | ||
1010 | error = &hostrcb->hcam.u.error.u.type_13_error; | |
1011 | errors_logged = be32_to_cpu(error->errors_logged); | |
1012 | ||
1013 | ipr_err("Device Errors Detected/Logged: %d/%d\n", | |
1014 | be32_to_cpu(error->errors_detected), errors_logged); | |
1015 | ||
1016 | dev_entry = error->dev; | |
1017 | ||
1018 | for (i = 0; i < errors_logged; i++, dev_entry++) { | |
1019 | ipr_err_separator; | |
1020 | ||
1021 | ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); | |
1022 | ipr_log_ext_vpd(&dev_entry->vpd); | |
1023 | ||
1024 | ipr_err("-----New Device Information-----\n"); | |
1025 | ipr_log_ext_vpd(&dev_entry->new_vpd); | |
1026 | ||
1027 | ipr_err("Cache Directory Card Information:\n"); | |
1028 | ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); | |
1029 | ||
1030 | ipr_err("Adapter Card Information:\n"); | |
1031 | ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); | |
1032 | } | |
1033 | } | |
1034 | ||
1da177e4 LT |
1035 | /** |
1036 | * ipr_log_config_error - Log a configuration error. | |
1037 | * @ioa_cfg: ioa config struct | |
1038 | * @hostrcb: hostrcb struct | |
1039 | * | |
1040 | * Return value: | |
1041 | * none | |
1042 | **/ | |
1043 | static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg, | |
1044 | struct ipr_hostrcb *hostrcb) | |
1045 | { | |
1046 | int errors_logged, i; | |
1047 | struct ipr_hostrcb_device_data_entry *dev_entry; | |
1048 | struct ipr_hostrcb_type_03_error *error; | |
1049 | ||
1050 | error = &hostrcb->hcam.u.error.u.type_03_error; | |
1051 | errors_logged = be32_to_cpu(error->errors_logged); | |
1052 | ||
1053 | ipr_err("Device Errors Detected/Logged: %d/%d\n", | |
1054 | be32_to_cpu(error->errors_detected), errors_logged); | |
1055 | ||
cfc32139 | 1056 | dev_entry = error->dev; |
1da177e4 LT |
1057 | |
1058 | for (i = 0; i < errors_logged; i++, dev_entry++) { | |
1059 | ipr_err_separator; | |
1060 | ||
fa15b1f6 | 1061 | ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); |
cfc32139 | 1062 | ipr_log_vpd(&dev_entry->vpd); |
1da177e4 LT |
1063 | |
1064 | ipr_err("-----New Device Information-----\n"); | |
cfc32139 | 1065 | ipr_log_vpd(&dev_entry->new_vpd); |
1da177e4 LT |
1066 | |
1067 | ipr_err("Cache Directory Card Information:\n"); | |
cfc32139 | 1068 | ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd); |
1da177e4 LT |
1069 | |
1070 | ipr_err("Adapter Card Information:\n"); | |
cfc32139 | 1071 | ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd); |
1da177e4 LT |
1072 | |
1073 | ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n", | |
1074 | be32_to_cpu(dev_entry->ioa_data[0]), | |
1075 | be32_to_cpu(dev_entry->ioa_data[1]), | |
1076 | be32_to_cpu(dev_entry->ioa_data[2]), | |
1077 | be32_to_cpu(dev_entry->ioa_data[3]), | |
1078 | be32_to_cpu(dev_entry->ioa_data[4])); | |
1079 | } | |
1080 | } | |
1081 | ||
ee0f05b8 BK |
1082 | /** |
1083 | * ipr_log_enhanced_array_error - Log an array configuration error. | |
1084 | * @ioa_cfg: ioa config struct | |
1085 | * @hostrcb: hostrcb struct | |
1086 | * | |
1087 | * Return value: | |
1088 | * none | |
1089 | **/ | |
1090 | static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg, | |
1091 | struct ipr_hostrcb *hostrcb) | |
1092 | { | |
1093 | int i, num_entries; | |
1094 | struct ipr_hostrcb_type_14_error *error; | |
1095 | struct ipr_hostrcb_array_data_entry_enhanced *array_entry; | |
1096 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; | |
1097 | ||
1098 | error = &hostrcb->hcam.u.error.u.type_14_error; | |
1099 | ||
1100 | ipr_err_separator; | |
1101 | ||
1102 | ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", | |
1103 | error->protection_level, | |
1104 | ioa_cfg->host->host_no, | |
1105 | error->last_func_vset_res_addr.bus, | |
1106 | error->last_func_vset_res_addr.target, | |
1107 | error->last_func_vset_res_addr.lun); | |
1108 | ||
1109 | ipr_err_separator; | |
1110 | ||
1111 | array_entry = error->array_member; | |
1112 | num_entries = min_t(u32, be32_to_cpu(error->num_entries), | |
1113 | sizeof(error->array_member)); | |
1114 | ||
1115 | for (i = 0; i < num_entries; i++, array_entry++) { | |
1116 | if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) | |
1117 | continue; | |
1118 | ||
1119 | if (be32_to_cpu(error->exposed_mode_adn) == i) | |
1120 | ipr_err("Exposed Array Member %d:\n", i); | |
1121 | else | |
1122 | ipr_err("Array Member %d:\n", i); | |
1123 | ||
1124 | ipr_log_ext_vpd(&array_entry->vpd); | |
1125 | ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); | |
1126 | ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, | |
1127 | "Expected Location"); | |
1128 | ||
1129 | ipr_err_separator; | |
1130 | } | |
1131 | } | |
1132 | ||
1da177e4 LT |
1133 | /** |
1134 | * ipr_log_array_error - Log an array configuration error. | |
1135 | * @ioa_cfg: ioa config struct | |
1136 | * @hostrcb: hostrcb struct | |
1137 | * | |
1138 | * Return value: | |
1139 | * none | |
1140 | **/ | |
1141 | static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg, | |
1142 | struct ipr_hostrcb *hostrcb) | |
1143 | { | |
1144 | int i; | |
1145 | struct ipr_hostrcb_type_04_error *error; | |
1146 | struct ipr_hostrcb_array_data_entry *array_entry; | |
1147 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; | |
1148 | ||
1149 | error = &hostrcb->hcam.u.error.u.type_04_error; | |
1150 | ||
1151 | ipr_err_separator; | |
1152 | ||
1153 | ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", | |
1154 | error->protection_level, | |
1155 | ioa_cfg->host->host_no, | |
1156 | error->last_func_vset_res_addr.bus, | |
1157 | error->last_func_vset_res_addr.target, | |
1158 | error->last_func_vset_res_addr.lun); | |
1159 | ||
1160 | ipr_err_separator; | |
1161 | ||
1162 | array_entry = error->array_member; | |
1163 | ||
1164 | for (i = 0; i < 18; i++) { | |
cfc32139 | 1165 | if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) |
1da177e4 LT |
1166 | continue; |
1167 | ||
fa15b1f6 | 1168 | if (be32_to_cpu(error->exposed_mode_adn) == i) |
1da177e4 | 1169 | ipr_err("Exposed Array Member %d:\n", i); |
fa15b1f6 | 1170 | else |
1da177e4 | 1171 | ipr_err("Array Member %d:\n", i); |
1da177e4 | 1172 | |
cfc32139 | 1173 | ipr_log_vpd(&array_entry->vpd); |
1da177e4 | 1174 | |
fa15b1f6 BK |
1175 | ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); |
1176 | ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, | |
1177 | "Expected Location"); | |
1da177e4 LT |
1178 | |
1179 | ipr_err_separator; | |
1180 | ||
1181 | if (i == 9) | |
1182 | array_entry = error->array_member2; | |
1183 | else | |
1184 | array_entry++; | |
1185 | } | |
1186 | } | |
1187 | ||
1188 | /** | |
b0df54bb BK |
1189 | * ipr_log_hex_data - Log additional hex IOA error data. |
1190 | * @data: IOA error data | |
1191 | * @len: data length | |
1da177e4 LT |
1192 | * |
1193 | * Return value: | |
1194 | * none | |
1195 | **/ | |
b0df54bb | 1196 | static void ipr_log_hex_data(u32 *data, int len) |
1da177e4 LT |
1197 | { |
1198 | int i; | |
1da177e4 | 1199 | |
b0df54bb | 1200 | if (len == 0) |
1da177e4 LT |
1201 | return; |
1202 | ||
b0df54bb | 1203 | for (i = 0; i < len / 4; i += 4) { |
1da177e4 | 1204 | ipr_err("%08X: %08X %08X %08X %08X\n", i*4, |
b0df54bb BK |
1205 | be32_to_cpu(data[i]), |
1206 | be32_to_cpu(data[i+1]), | |
1207 | be32_to_cpu(data[i+2]), | |
1208 | be32_to_cpu(data[i+3])); | |
1da177e4 LT |
1209 | } |
1210 | } | |
1211 | ||
ee0f05b8 BK |
1212 | /** |
1213 | * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error. | |
1214 | * @ioa_cfg: ioa config struct | |
1215 | * @hostrcb: hostrcb struct | |
1216 | * | |
1217 | * Return value: | |
1218 | * none | |
1219 | **/ | |
1220 | static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, | |
1221 | struct ipr_hostrcb *hostrcb) | |
1222 | { | |
1223 | struct ipr_hostrcb_type_17_error *error; | |
1224 | ||
1225 | error = &hostrcb->hcam.u.error.u.type_17_error; | |
1226 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; | |
1227 | ||
1228 | ipr_err("%s\n", error->failure_reason); | |
1229 | ipr_err("Remote Adapter VPD:\n"); | |
1230 | ipr_log_ext_vpd(&error->vpd); | |
1231 | ipr_log_hex_data(error->data, | |
1232 | be32_to_cpu(hostrcb->hcam.length) - | |
1233 | (offsetof(struct ipr_hostrcb_error, u) + | |
1234 | offsetof(struct ipr_hostrcb_type_17_error, data))); | |
1235 | } | |
1236 | ||
b0df54bb BK |
1237 | /** |
1238 | * ipr_log_dual_ioa_error - Log a dual adapter error. | |
1239 | * @ioa_cfg: ioa config struct | |
1240 | * @hostrcb: hostrcb struct | |
1241 | * | |
1242 | * Return value: | |
1243 | * none | |
1244 | **/ | |
1245 | static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, | |
1246 | struct ipr_hostrcb *hostrcb) | |
1247 | { | |
1248 | struct ipr_hostrcb_type_07_error *error; | |
1249 | ||
1250 | error = &hostrcb->hcam.u.error.u.type_07_error; | |
1251 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; | |
1252 | ||
1253 | ipr_err("%s\n", error->failure_reason); | |
1254 | ipr_err("Remote Adapter VPD:\n"); | |
1255 | ipr_log_vpd(&error->vpd); | |
1256 | ipr_log_hex_data(error->data, | |
1257 | be32_to_cpu(hostrcb->hcam.length) - | |
1258 | (offsetof(struct ipr_hostrcb_error, u) + | |
1259 | offsetof(struct ipr_hostrcb_type_07_error, data))); | |
1260 | } | |
1261 | ||
1262 | /** | |
1263 | * ipr_log_generic_error - Log an adapter error. | |
1264 | * @ioa_cfg: ioa config struct | |
1265 | * @hostrcb: hostrcb struct | |
1266 | * | |
1267 | * Return value: | |
1268 | * none | |
1269 | **/ | |
1270 | static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg, | |
1271 | struct ipr_hostrcb *hostrcb) | |
1272 | { | |
1273 | ipr_log_hex_data(hostrcb->hcam.u.raw.data, | |
1274 | be32_to_cpu(hostrcb->hcam.length)); | |
1275 | } | |
1276 | ||
1da177e4 LT |
1277 | /** |
1278 | * ipr_get_error - Find the specfied IOASC in the ipr_error_table. | |
1279 | * @ioasc: IOASC | |
1280 | * | |
1281 | * This function will return the index of into the ipr_error_table | |
1282 | * for the specified IOASC. If the IOASC is not in the table, | |
1283 | * 0 will be returned, which points to the entry used for unknown errors. | |
1284 | * | |
1285 | * Return value: | |
1286 | * index into the ipr_error_table | |
1287 | **/ | |
1288 | static u32 ipr_get_error(u32 ioasc) | |
1289 | { | |
1290 | int i; | |
1291 | ||
1292 | for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++) | |
1293 | if (ipr_error_table[i].ioasc == ioasc) | |
1294 | return i; | |
1295 | ||
1296 | return 0; | |
1297 | } | |
1298 | ||
1299 | /** | |
1300 | * ipr_handle_log_data - Log an adapter error. | |
1301 | * @ioa_cfg: ioa config struct | |
1302 | * @hostrcb: hostrcb struct | |
1303 | * | |
1304 | * This function logs an adapter error to the system. | |
1305 | * | |
1306 | * Return value: | |
1307 | * none | |
1308 | **/ | |
1309 | static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg, | |
1310 | struct ipr_hostrcb *hostrcb) | |
1311 | { | |
1312 | u32 ioasc; | |
1313 | int error_index; | |
1314 | ||
1315 | if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY) | |
1316 | return; | |
1317 | ||
1318 | if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST) | |
1319 | dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n"); | |
1320 | ||
1321 | ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc); | |
1322 | ||
1323 | if (ioasc == IPR_IOASC_BUS_WAS_RESET || | |
1324 | ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER) { | |
1325 | /* Tell the midlayer we had a bus reset so it will handle the UA properly */ | |
1326 | scsi_report_bus_reset(ioa_cfg->host, | |
1327 | hostrcb->hcam.u.error.failing_dev_res_addr.bus); | |
1328 | } | |
1329 | ||
1330 | error_index = ipr_get_error(ioasc); | |
1331 | ||
1332 | if (!ipr_error_table[error_index].log_hcam) | |
1333 | return; | |
1334 | ||
1335 | if (ipr_is_device(&hostrcb->hcam.u.error.failing_dev_res_addr)) { | |
1336 | ipr_res_err(ioa_cfg, hostrcb->hcam.u.error.failing_dev_res_addr, | |
1337 | "%s\n", ipr_error_table[error_index].error); | |
1338 | } else { | |
1339 | dev_err(&ioa_cfg->pdev->dev, "%s\n", | |
1340 | ipr_error_table[error_index].error); | |
1341 | } | |
1342 | ||
1343 | /* Set indication we have logged an error */ | |
1344 | ioa_cfg->errors_logged++; | |
1345 | ||
1346 | if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) | |
1347 | return; | |
cf852037 BK |
1348 | if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw)) |
1349 | hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw)); | |
1da177e4 LT |
1350 | |
1351 | switch (hostrcb->hcam.overlay_id) { | |
1da177e4 LT |
1352 | case IPR_HOST_RCB_OVERLAY_ID_2: |
1353 | ipr_log_cache_error(ioa_cfg, hostrcb); | |
1354 | break; | |
1355 | case IPR_HOST_RCB_OVERLAY_ID_3: | |
1356 | ipr_log_config_error(ioa_cfg, hostrcb); | |
1357 | break; | |
1358 | case IPR_HOST_RCB_OVERLAY_ID_4: | |
1359 | case IPR_HOST_RCB_OVERLAY_ID_6: | |
1360 | ipr_log_array_error(ioa_cfg, hostrcb); | |
1361 | break; | |
b0df54bb BK |
1362 | case IPR_HOST_RCB_OVERLAY_ID_7: |
1363 | ipr_log_dual_ioa_error(ioa_cfg, hostrcb); | |
1364 | break; | |
ee0f05b8 BK |
1365 | case IPR_HOST_RCB_OVERLAY_ID_12: |
1366 | ipr_log_enhanced_cache_error(ioa_cfg, hostrcb); | |
1367 | break; | |
1368 | case IPR_HOST_RCB_OVERLAY_ID_13: | |
1369 | ipr_log_enhanced_config_error(ioa_cfg, hostrcb); | |
1370 | break; | |
1371 | case IPR_HOST_RCB_OVERLAY_ID_14: | |
1372 | case IPR_HOST_RCB_OVERLAY_ID_16: | |
1373 | ipr_log_enhanced_array_error(ioa_cfg, hostrcb); | |
1374 | break; | |
1375 | case IPR_HOST_RCB_OVERLAY_ID_17: | |
1376 | ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb); | |
1377 | break; | |
cf852037 | 1378 | case IPR_HOST_RCB_OVERLAY_ID_1: |
1da177e4 | 1379 | case IPR_HOST_RCB_OVERLAY_ID_DEFAULT: |
1da177e4 | 1380 | default: |
a9cfca96 | 1381 | ipr_log_generic_error(ioa_cfg, hostrcb); |
1da177e4 LT |
1382 | break; |
1383 | } | |
1384 | } | |
1385 | ||
1386 | /** | |
1387 | * ipr_process_error - Op done function for an adapter error log. | |
1388 | * @ipr_cmd: ipr command struct | |
1389 | * | |
1390 | * This function is the op done function for an error log host | |
1391 | * controlled async from the adapter. It will log the error and | |
1392 | * send the HCAM back to the adapter. | |
1393 | * | |
1394 | * Return value: | |
1395 | * none | |
1396 | **/ | |
1397 | static void ipr_process_error(struct ipr_cmnd *ipr_cmd) | |
1398 | { | |
1399 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
1400 | struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; | |
1401 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
1402 | ||
1403 | list_del(&hostrcb->queue); | |
1404 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
1405 | ||
1406 | if (!ioasc) { | |
1407 | ipr_handle_log_data(ioa_cfg, hostrcb); | |
1408 | } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) { | |
1409 | dev_err(&ioa_cfg->pdev->dev, | |
1410 | "Host RCB failed with IOASC: 0x%08X\n", ioasc); | |
1411 | } | |
1412 | ||
1413 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); | |
1414 | } | |
1415 | ||
1416 | /** | |
1417 | * ipr_timeout - An internally generated op has timed out. | |
1418 | * @ipr_cmd: ipr command struct | |
1419 | * | |
1420 | * This function blocks host requests and initiates an | |
1421 | * adapter reset. | |
1422 | * | |
1423 | * Return value: | |
1424 | * none | |
1425 | **/ | |
1426 | static void ipr_timeout(struct ipr_cmnd *ipr_cmd) | |
1427 | { | |
1428 | unsigned long lock_flags = 0; | |
1429 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
1430 | ||
1431 | ENTER; | |
1432 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1433 | ||
1434 | ioa_cfg->errors_logged++; | |
1435 | dev_err(&ioa_cfg->pdev->dev, | |
1436 | "Adapter being reset due to command timeout.\n"); | |
1437 | ||
1438 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
1439 | ioa_cfg->sdt_state = GET_DUMP; | |
1440 | ||
1441 | if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) | |
1442 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
1443 | ||
1444 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1445 | LEAVE; | |
1446 | } | |
1447 | ||
1448 | /** | |
1449 | * ipr_oper_timeout - Adapter timed out transitioning to operational | |
1450 | * @ipr_cmd: ipr command struct | |
1451 | * | |
1452 | * This function blocks host requests and initiates an | |
1453 | * adapter reset. | |
1454 | * | |
1455 | * Return value: | |
1456 | * none | |
1457 | **/ | |
1458 | static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd) | |
1459 | { | |
1460 | unsigned long lock_flags = 0; | |
1461 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
1462 | ||
1463 | ENTER; | |
1464 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1465 | ||
1466 | ioa_cfg->errors_logged++; | |
1467 | dev_err(&ioa_cfg->pdev->dev, | |
1468 | "Adapter timed out transitioning to operational.\n"); | |
1469 | ||
1470 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
1471 | ioa_cfg->sdt_state = GET_DUMP; | |
1472 | ||
1473 | if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) { | |
1474 | if (ipr_fastfail) | |
1475 | ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; | |
1476 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
1477 | } | |
1478 | ||
1479 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1480 | LEAVE; | |
1481 | } | |
1482 | ||
1483 | /** | |
1484 | * ipr_reset_reload - Reset/Reload the IOA | |
1485 | * @ioa_cfg: ioa config struct | |
1486 | * @shutdown_type: shutdown type | |
1487 | * | |
1488 | * This function resets the adapter and re-initializes it. | |
1489 | * This function assumes that all new host commands have been stopped. | |
1490 | * Return value: | |
1491 | * SUCCESS / FAILED | |
1492 | **/ | |
1493 | static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg, | |
1494 | enum ipr_shutdown_type shutdown_type) | |
1495 | { | |
1496 | if (!ioa_cfg->in_reset_reload) | |
1497 | ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); | |
1498 | ||
1499 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
1500 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
1501 | spin_lock_irq(ioa_cfg->host->host_lock); | |
1502 | ||
1503 | /* If we got hit with a host reset while we were already resetting | |
1504 | the adapter for some reason, and the reset failed. */ | |
1505 | if (ioa_cfg->ioa_is_dead) { | |
1506 | ipr_trace; | |
1507 | return FAILED; | |
1508 | } | |
1509 | ||
1510 | return SUCCESS; | |
1511 | } | |
1512 | ||
1513 | /** | |
1514 | * ipr_find_ses_entry - Find matching SES in SES table | |
1515 | * @res: resource entry struct of SES | |
1516 | * | |
1517 | * Return value: | |
1518 | * pointer to SES table entry / NULL on failure | |
1519 | **/ | |
1520 | static const struct ipr_ses_table_entry * | |
1521 | ipr_find_ses_entry(struct ipr_resource_entry *res) | |
1522 | { | |
1523 | int i, j, matches; | |
1524 | const struct ipr_ses_table_entry *ste = ipr_ses_table; | |
1525 | ||
1526 | for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) { | |
1527 | for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) { | |
1528 | if (ste->compare_product_id_byte[j] == 'X') { | |
1529 | if (res->cfgte.std_inq_data.vpids.product_id[j] == ste->product_id[j]) | |
1530 | matches++; | |
1531 | else | |
1532 | break; | |
1533 | } else | |
1534 | matches++; | |
1535 | } | |
1536 | ||
1537 | if (matches == IPR_PROD_ID_LEN) | |
1538 | return ste; | |
1539 | } | |
1540 | ||
1541 | return NULL; | |
1542 | } | |
1543 | ||
1544 | /** | |
1545 | * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus | |
1546 | * @ioa_cfg: ioa config struct | |
1547 | * @bus: SCSI bus | |
1548 | * @bus_width: bus width | |
1549 | * | |
1550 | * Return value: | |
1551 | * SCSI bus speed in units of 100KHz, 1600 is 160 MHz | |
1552 | * For a 2-byte wide SCSI bus, the maximum transfer speed is | |
1553 | * twice the maximum transfer rate (e.g. for a wide enabled bus, | |
1554 | * max 160MHz = max 320MB/sec). | |
1555 | **/ | |
1556 | static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width) | |
1557 | { | |
1558 | struct ipr_resource_entry *res; | |
1559 | const struct ipr_ses_table_entry *ste; | |
1560 | u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width); | |
1561 | ||
1562 | /* Loop through each config table entry in the config table buffer */ | |
1563 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
1564 | if (!(IPR_IS_SES_DEVICE(res->cfgte.std_inq_data))) | |
1565 | continue; | |
1566 | ||
1567 | if (bus != res->cfgte.res_addr.bus) | |
1568 | continue; | |
1569 | ||
1570 | if (!(ste = ipr_find_ses_entry(res))) | |
1571 | continue; | |
1572 | ||
1573 | max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8); | |
1574 | } | |
1575 | ||
1576 | return max_xfer_rate; | |
1577 | } | |
1578 | ||
1579 | /** | |
1580 | * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA | |
1581 | * @ioa_cfg: ioa config struct | |
1582 | * @max_delay: max delay in micro-seconds to wait | |
1583 | * | |
1584 | * Waits for an IODEBUG ACK from the IOA, doing busy looping. | |
1585 | * | |
1586 | * Return value: | |
1587 | * 0 on success / other on failure | |
1588 | **/ | |
1589 | static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay) | |
1590 | { | |
1591 | volatile u32 pcii_reg; | |
1592 | int delay = 1; | |
1593 | ||
1594 | /* Read interrupt reg until IOA signals IO Debug Acknowledge */ | |
1595 | while (delay < max_delay) { | |
1596 | pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
1597 | ||
1598 | if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE) | |
1599 | return 0; | |
1600 | ||
1601 | /* udelay cannot be used if delay is more than a few milliseconds */ | |
1602 | if ((delay / 1000) > MAX_UDELAY_MS) | |
1603 | mdelay(delay / 1000); | |
1604 | else | |
1605 | udelay(delay); | |
1606 | ||
1607 | delay += delay; | |
1608 | } | |
1609 | return -EIO; | |
1610 | } | |
1611 | ||
1612 | /** | |
1613 | * ipr_get_ldump_data_section - Dump IOA memory | |
1614 | * @ioa_cfg: ioa config struct | |
1615 | * @start_addr: adapter address to dump | |
1616 | * @dest: destination kernel buffer | |
1617 | * @length_in_words: length to dump in 4 byte words | |
1618 | * | |
1619 | * Return value: | |
1620 | * 0 on success / -EIO on failure | |
1621 | **/ | |
1622 | static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg, | |
1623 | u32 start_addr, | |
1624 | __be32 *dest, u32 length_in_words) | |
1625 | { | |
1626 | volatile u32 temp_pcii_reg; | |
1627 | int i, delay = 0; | |
1628 | ||
1629 | /* Write IOA interrupt reg starting LDUMP state */ | |
1630 | writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT), | |
1631 | ioa_cfg->regs.set_uproc_interrupt_reg); | |
1632 | ||
1633 | /* Wait for IO debug acknowledge */ | |
1634 | if (ipr_wait_iodbg_ack(ioa_cfg, | |
1635 | IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) { | |
1636 | dev_err(&ioa_cfg->pdev->dev, | |
1637 | "IOA dump long data transfer timeout\n"); | |
1638 | return -EIO; | |
1639 | } | |
1640 | ||
1641 | /* Signal LDUMP interlocked - clear IO debug ack */ | |
1642 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, | |
1643 | ioa_cfg->regs.clr_interrupt_reg); | |
1644 | ||
1645 | /* Write Mailbox with starting address */ | |
1646 | writel(start_addr, ioa_cfg->ioa_mailbox); | |
1647 | ||
1648 | /* Signal address valid - clear IOA Reset alert */ | |
1649 | writel(IPR_UPROCI_RESET_ALERT, | |
1650 | ioa_cfg->regs.clr_uproc_interrupt_reg); | |
1651 | ||
1652 | for (i = 0; i < length_in_words; i++) { | |
1653 | /* Wait for IO debug acknowledge */ | |
1654 | if (ipr_wait_iodbg_ack(ioa_cfg, | |
1655 | IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) { | |
1656 | dev_err(&ioa_cfg->pdev->dev, | |
1657 | "IOA dump short data transfer timeout\n"); | |
1658 | return -EIO; | |
1659 | } | |
1660 | ||
1661 | /* Read data from mailbox and increment destination pointer */ | |
1662 | *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox)); | |
1663 | dest++; | |
1664 | ||
1665 | /* For all but the last word of data, signal data received */ | |
1666 | if (i < (length_in_words - 1)) { | |
1667 | /* Signal dump data received - Clear IO debug Ack */ | |
1668 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, | |
1669 | ioa_cfg->regs.clr_interrupt_reg); | |
1670 | } | |
1671 | } | |
1672 | ||
1673 | /* Signal end of block transfer. Set reset alert then clear IO debug ack */ | |
1674 | writel(IPR_UPROCI_RESET_ALERT, | |
1675 | ioa_cfg->regs.set_uproc_interrupt_reg); | |
1676 | ||
1677 | writel(IPR_UPROCI_IO_DEBUG_ALERT, | |
1678 | ioa_cfg->regs.clr_uproc_interrupt_reg); | |
1679 | ||
1680 | /* Signal dump data received - Clear IO debug Ack */ | |
1681 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, | |
1682 | ioa_cfg->regs.clr_interrupt_reg); | |
1683 | ||
1684 | /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */ | |
1685 | while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) { | |
1686 | temp_pcii_reg = | |
1687 | readl(ioa_cfg->regs.sense_uproc_interrupt_reg); | |
1688 | ||
1689 | if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT)) | |
1690 | return 0; | |
1691 | ||
1692 | udelay(10); | |
1693 | delay += 10; | |
1694 | } | |
1695 | ||
1696 | return 0; | |
1697 | } | |
1698 | ||
1699 | #ifdef CONFIG_SCSI_IPR_DUMP | |
1700 | /** | |
1701 | * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer | |
1702 | * @ioa_cfg: ioa config struct | |
1703 | * @pci_address: adapter address | |
1704 | * @length: length of data to copy | |
1705 | * | |
1706 | * Copy data from PCI adapter to kernel buffer. | |
1707 | * Note: length MUST be a 4 byte multiple | |
1708 | * Return value: | |
1709 | * 0 on success / other on failure | |
1710 | **/ | |
1711 | static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg, | |
1712 | unsigned long pci_address, u32 length) | |
1713 | { | |
1714 | int bytes_copied = 0; | |
1715 | int cur_len, rc, rem_len, rem_page_len; | |
1716 | __be32 *page; | |
1717 | unsigned long lock_flags = 0; | |
1718 | struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump; | |
1719 | ||
1720 | while (bytes_copied < length && | |
1721 | (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) { | |
1722 | if (ioa_dump->page_offset >= PAGE_SIZE || | |
1723 | ioa_dump->page_offset == 0) { | |
1724 | page = (__be32 *)__get_free_page(GFP_ATOMIC); | |
1725 | ||
1726 | if (!page) { | |
1727 | ipr_trace; | |
1728 | return bytes_copied; | |
1729 | } | |
1730 | ||
1731 | ioa_dump->page_offset = 0; | |
1732 | ioa_dump->ioa_data[ioa_dump->next_page_index] = page; | |
1733 | ioa_dump->next_page_index++; | |
1734 | } else | |
1735 | page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1]; | |
1736 | ||
1737 | rem_len = length - bytes_copied; | |
1738 | rem_page_len = PAGE_SIZE - ioa_dump->page_offset; | |
1739 | cur_len = min(rem_len, rem_page_len); | |
1740 | ||
1741 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1742 | if (ioa_cfg->sdt_state == ABORT_DUMP) { | |
1743 | rc = -EIO; | |
1744 | } else { | |
1745 | rc = ipr_get_ldump_data_section(ioa_cfg, | |
1746 | pci_address + bytes_copied, | |
1747 | &page[ioa_dump->page_offset / 4], | |
1748 | (cur_len / sizeof(u32))); | |
1749 | } | |
1750 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1751 | ||
1752 | if (!rc) { | |
1753 | ioa_dump->page_offset += cur_len; | |
1754 | bytes_copied += cur_len; | |
1755 | } else { | |
1756 | ipr_trace; | |
1757 | break; | |
1758 | } | |
1759 | schedule(); | |
1760 | } | |
1761 | ||
1762 | return bytes_copied; | |
1763 | } | |
1764 | ||
1765 | /** | |
1766 | * ipr_init_dump_entry_hdr - Initialize a dump entry header. | |
1767 | * @hdr: dump entry header struct | |
1768 | * | |
1769 | * Return value: | |
1770 | * nothing | |
1771 | **/ | |
1772 | static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr) | |
1773 | { | |
1774 | hdr->eye_catcher = IPR_DUMP_EYE_CATCHER; | |
1775 | hdr->num_elems = 1; | |
1776 | hdr->offset = sizeof(*hdr); | |
1777 | hdr->status = IPR_DUMP_STATUS_SUCCESS; | |
1778 | } | |
1779 | ||
1780 | /** | |
1781 | * ipr_dump_ioa_type_data - Fill in the adapter type in the dump. | |
1782 | * @ioa_cfg: ioa config struct | |
1783 | * @driver_dump: driver dump struct | |
1784 | * | |
1785 | * Return value: | |
1786 | * nothing | |
1787 | **/ | |
1788 | static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg, | |
1789 | struct ipr_driver_dump *driver_dump) | |
1790 | { | |
1791 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; | |
1792 | ||
1793 | ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr); | |
1794 | driver_dump->ioa_type_entry.hdr.len = | |
1795 | sizeof(struct ipr_dump_ioa_type_entry) - | |
1796 | sizeof(struct ipr_dump_entry_header); | |
1797 | driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; | |
1798 | driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID; | |
1799 | driver_dump->ioa_type_entry.type = ioa_cfg->type; | |
1800 | driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) | | |
1801 | (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) | | |
1802 | ucode_vpd->minor_release[1]; | |
1803 | driver_dump->hdr.num_entries++; | |
1804 | } | |
1805 | ||
1806 | /** | |
1807 | * ipr_dump_version_data - Fill in the driver version in the dump. | |
1808 | * @ioa_cfg: ioa config struct | |
1809 | * @driver_dump: driver dump struct | |
1810 | * | |
1811 | * Return value: | |
1812 | * nothing | |
1813 | **/ | |
1814 | static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg, | |
1815 | struct ipr_driver_dump *driver_dump) | |
1816 | { | |
1817 | ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr); | |
1818 | driver_dump->version_entry.hdr.len = | |
1819 | sizeof(struct ipr_dump_version_entry) - | |
1820 | sizeof(struct ipr_dump_entry_header); | |
1821 | driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; | |
1822 | driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID; | |
1823 | strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION); | |
1824 | driver_dump->hdr.num_entries++; | |
1825 | } | |
1826 | ||
1827 | /** | |
1828 | * ipr_dump_trace_data - Fill in the IOA trace in the dump. | |
1829 | * @ioa_cfg: ioa config struct | |
1830 | * @driver_dump: driver dump struct | |
1831 | * | |
1832 | * Return value: | |
1833 | * nothing | |
1834 | **/ | |
1835 | static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg, | |
1836 | struct ipr_driver_dump *driver_dump) | |
1837 | { | |
1838 | ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr); | |
1839 | driver_dump->trace_entry.hdr.len = | |
1840 | sizeof(struct ipr_dump_trace_entry) - | |
1841 | sizeof(struct ipr_dump_entry_header); | |
1842 | driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; | |
1843 | driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID; | |
1844 | memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE); | |
1845 | driver_dump->hdr.num_entries++; | |
1846 | } | |
1847 | ||
1848 | /** | |
1849 | * ipr_dump_location_data - Fill in the IOA location in the dump. | |
1850 | * @ioa_cfg: ioa config struct | |
1851 | * @driver_dump: driver dump struct | |
1852 | * | |
1853 | * Return value: | |
1854 | * nothing | |
1855 | **/ | |
1856 | static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg, | |
1857 | struct ipr_driver_dump *driver_dump) | |
1858 | { | |
1859 | ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr); | |
1860 | driver_dump->location_entry.hdr.len = | |
1861 | sizeof(struct ipr_dump_location_entry) - | |
1862 | sizeof(struct ipr_dump_entry_header); | |
1863 | driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; | |
1864 | driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID; | |
1865 | strcpy(driver_dump->location_entry.location, ioa_cfg->pdev->dev.bus_id); | |
1866 | driver_dump->hdr.num_entries++; | |
1867 | } | |
1868 | ||
1869 | /** | |
1870 | * ipr_get_ioa_dump - Perform a dump of the driver and adapter. | |
1871 | * @ioa_cfg: ioa config struct | |
1872 | * @dump: dump struct | |
1873 | * | |
1874 | * Return value: | |
1875 | * nothing | |
1876 | **/ | |
1877 | static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump) | |
1878 | { | |
1879 | unsigned long start_addr, sdt_word; | |
1880 | unsigned long lock_flags = 0; | |
1881 | struct ipr_driver_dump *driver_dump = &dump->driver_dump; | |
1882 | struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump; | |
1883 | u32 num_entries, start_off, end_off; | |
1884 | u32 bytes_to_copy, bytes_copied, rc; | |
1885 | struct ipr_sdt *sdt; | |
1886 | int i; | |
1887 | ||
1888 | ENTER; | |
1889 | ||
1890 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1891 | ||
1892 | if (ioa_cfg->sdt_state != GET_DUMP) { | |
1893 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1894 | return; | |
1895 | } | |
1896 | ||
1897 | start_addr = readl(ioa_cfg->ioa_mailbox); | |
1898 | ||
1899 | if (!ipr_sdt_is_fmt2(start_addr)) { | |
1900 | dev_err(&ioa_cfg->pdev->dev, | |
1901 | "Invalid dump table format: %lx\n", start_addr); | |
1902 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1903 | return; | |
1904 | } | |
1905 | ||
1906 | dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n"); | |
1907 | ||
1908 | driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER; | |
1909 | ||
1910 | /* Initialize the overall dump header */ | |
1911 | driver_dump->hdr.len = sizeof(struct ipr_driver_dump); | |
1912 | driver_dump->hdr.num_entries = 1; | |
1913 | driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header); | |
1914 | driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS; | |
1915 | driver_dump->hdr.os = IPR_DUMP_OS_LINUX; | |
1916 | driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME; | |
1917 | ||
1918 | ipr_dump_version_data(ioa_cfg, driver_dump); | |
1919 | ipr_dump_location_data(ioa_cfg, driver_dump); | |
1920 | ipr_dump_ioa_type_data(ioa_cfg, driver_dump); | |
1921 | ipr_dump_trace_data(ioa_cfg, driver_dump); | |
1922 | ||
1923 | /* Update dump_header */ | |
1924 | driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header); | |
1925 | ||
1926 | /* IOA Dump entry */ | |
1927 | ipr_init_dump_entry_hdr(&ioa_dump->hdr); | |
1928 | ioa_dump->format = IPR_SDT_FMT2; | |
1929 | ioa_dump->hdr.len = 0; | |
1930 | ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; | |
1931 | ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID; | |
1932 | ||
1933 | /* First entries in sdt are actually a list of dump addresses and | |
1934 | lengths to gather the real dump data. sdt represents the pointer | |
1935 | to the ioa generated dump table. Dump data will be extracted based | |
1936 | on entries in this table */ | |
1937 | sdt = &ioa_dump->sdt; | |
1938 | ||
1939 | rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt, | |
1940 | sizeof(struct ipr_sdt) / sizeof(__be32)); | |
1941 | ||
1942 | /* Smart Dump table is ready to use and the first entry is valid */ | |
1943 | if (rc || (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE)) { | |
1944 | dev_err(&ioa_cfg->pdev->dev, | |
1945 | "Dump of IOA failed. Dump table not valid: %d, %X.\n", | |
1946 | rc, be32_to_cpu(sdt->hdr.state)); | |
1947 | driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED; | |
1948 | ioa_cfg->sdt_state = DUMP_OBTAINED; | |
1949 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1950 | return; | |
1951 | } | |
1952 | ||
1953 | num_entries = be32_to_cpu(sdt->hdr.num_entries_used); | |
1954 | ||
1955 | if (num_entries > IPR_NUM_SDT_ENTRIES) | |
1956 | num_entries = IPR_NUM_SDT_ENTRIES; | |
1957 | ||
1958 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1959 | ||
1960 | for (i = 0; i < num_entries; i++) { | |
1961 | if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) { | |
1962 | driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; | |
1963 | break; | |
1964 | } | |
1965 | ||
1966 | if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) { | |
1967 | sdt_word = be32_to_cpu(sdt->entry[i].bar_str_offset); | |
1968 | start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK; | |
1969 | end_off = be32_to_cpu(sdt->entry[i].end_offset); | |
1970 | ||
1971 | if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) { | |
1972 | bytes_to_copy = end_off - start_off; | |
1973 | if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) { | |
1974 | sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY; | |
1975 | continue; | |
1976 | } | |
1977 | ||
1978 | /* Copy data from adapter to driver buffers */ | |
1979 | bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word, | |
1980 | bytes_to_copy); | |
1981 | ||
1982 | ioa_dump->hdr.len += bytes_copied; | |
1983 | ||
1984 | if (bytes_copied != bytes_to_copy) { | |
1985 | driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; | |
1986 | break; | |
1987 | } | |
1988 | } | |
1989 | } | |
1990 | } | |
1991 | ||
1992 | dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n"); | |
1993 | ||
1994 | /* Update dump_header */ | |
1995 | driver_dump->hdr.len += ioa_dump->hdr.len; | |
1996 | wmb(); | |
1997 | ioa_cfg->sdt_state = DUMP_OBTAINED; | |
1998 | LEAVE; | |
1999 | } | |
2000 | ||
2001 | #else | |
2002 | #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0) | |
2003 | #endif | |
2004 | ||
2005 | /** | |
2006 | * ipr_release_dump - Free adapter dump memory | |
2007 | * @kref: kref struct | |
2008 | * | |
2009 | * Return value: | |
2010 | * nothing | |
2011 | **/ | |
2012 | static void ipr_release_dump(struct kref *kref) | |
2013 | { | |
2014 | struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref); | |
2015 | struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg; | |
2016 | unsigned long lock_flags = 0; | |
2017 | int i; | |
2018 | ||
2019 | ENTER; | |
2020 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2021 | ioa_cfg->dump = NULL; | |
2022 | ioa_cfg->sdt_state = INACTIVE; | |
2023 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2024 | ||
2025 | for (i = 0; i < dump->ioa_dump.next_page_index; i++) | |
2026 | free_page((unsigned long) dump->ioa_dump.ioa_data[i]); | |
2027 | ||
2028 | kfree(dump); | |
2029 | LEAVE; | |
2030 | } | |
2031 | ||
2032 | /** | |
2033 | * ipr_worker_thread - Worker thread | |
2034 | * @data: ioa config struct | |
2035 | * | |
2036 | * Called at task level from a work thread. This function takes care | |
2037 | * of adding and removing device from the mid-layer as configuration | |
2038 | * changes are detected by the adapter. | |
2039 | * | |
2040 | * Return value: | |
2041 | * nothing | |
2042 | **/ | |
2043 | static void ipr_worker_thread(void *data) | |
2044 | { | |
2045 | unsigned long lock_flags; | |
2046 | struct ipr_resource_entry *res; | |
2047 | struct scsi_device *sdev; | |
2048 | struct ipr_dump *dump; | |
2049 | struct ipr_ioa_cfg *ioa_cfg = data; | |
2050 | u8 bus, target, lun; | |
2051 | int did_work; | |
2052 | ||
2053 | ENTER; | |
2054 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2055 | ||
2056 | if (ioa_cfg->sdt_state == GET_DUMP) { | |
2057 | dump = ioa_cfg->dump; | |
2058 | if (!dump) { | |
2059 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2060 | return; | |
2061 | } | |
2062 | kref_get(&dump->kref); | |
2063 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2064 | ipr_get_ioa_dump(ioa_cfg, dump); | |
2065 | kref_put(&dump->kref, ipr_release_dump); | |
2066 | ||
2067 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2068 | if (ioa_cfg->sdt_state == DUMP_OBTAINED) | |
2069 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
2070 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2071 | return; | |
2072 | } | |
2073 | ||
2074 | restart: | |
2075 | do { | |
2076 | did_work = 0; | |
2077 | if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) { | |
2078 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2079 | return; | |
2080 | } | |
2081 | ||
2082 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
2083 | if (res->del_from_ml && res->sdev) { | |
2084 | did_work = 1; | |
2085 | sdev = res->sdev; | |
2086 | if (!scsi_device_get(sdev)) { | |
1da177e4 LT |
2087 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); |
2088 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2089 | scsi_remove_device(sdev); | |
2090 | scsi_device_put(sdev); | |
2091 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2092 | } | |
2093 | break; | |
2094 | } | |
2095 | } | |
2096 | } while(did_work); | |
2097 | ||
2098 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
2099 | if (res->add_to_ml) { | |
2100 | bus = res->cfgte.res_addr.bus; | |
2101 | target = res->cfgte.res_addr.target; | |
2102 | lun = res->cfgte.res_addr.lun; | |
1121b794 | 2103 | res->add_to_ml = 0; |
1da177e4 LT |
2104 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
2105 | scsi_add_device(ioa_cfg->host, bus, target, lun); | |
2106 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2107 | goto restart; | |
2108 | } | |
2109 | } | |
2110 | ||
2111 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
312c004d | 2112 | kobject_uevent(&ioa_cfg->host->shost_classdev.kobj, KOBJ_CHANGE); |
1da177e4 LT |
2113 | LEAVE; |
2114 | } | |
2115 | ||
2116 | #ifdef CONFIG_SCSI_IPR_TRACE | |
2117 | /** | |
2118 | * ipr_read_trace - Dump the adapter trace | |
2119 | * @kobj: kobject struct | |
2120 | * @buf: buffer | |
2121 | * @off: offset | |
2122 | * @count: buffer size | |
2123 | * | |
2124 | * Return value: | |
2125 | * number of bytes printed to buffer | |
2126 | **/ | |
2127 | static ssize_t ipr_read_trace(struct kobject *kobj, char *buf, | |
2128 | loff_t off, size_t count) | |
2129 | { | |
2130 | struct class_device *cdev = container_of(kobj,struct class_device,kobj); | |
2131 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2132 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2133 | unsigned long lock_flags = 0; | |
2134 | int size = IPR_TRACE_SIZE; | |
2135 | char *src = (char *)ioa_cfg->trace; | |
2136 | ||
2137 | if (off > size) | |
2138 | return 0; | |
2139 | if (off + count > size) { | |
2140 | size -= off; | |
2141 | count = size; | |
2142 | } | |
2143 | ||
2144 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2145 | memcpy(buf, &src[off], count); | |
2146 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2147 | return count; | |
2148 | } | |
2149 | ||
2150 | static struct bin_attribute ipr_trace_attr = { | |
2151 | .attr = { | |
2152 | .name = "trace", | |
2153 | .mode = S_IRUGO, | |
2154 | }, | |
2155 | .size = 0, | |
2156 | .read = ipr_read_trace, | |
2157 | }; | |
2158 | #endif | |
2159 | ||
62275040 BK |
2160 | static const struct { |
2161 | enum ipr_cache_state state; | |
2162 | char *name; | |
2163 | } cache_state [] = { | |
2164 | { CACHE_NONE, "none" }, | |
2165 | { CACHE_DISABLED, "disabled" }, | |
2166 | { CACHE_ENABLED, "enabled" } | |
2167 | }; | |
2168 | ||
2169 | /** | |
2170 | * ipr_show_write_caching - Show the write caching attribute | |
2171 | * @class_dev: class device struct | |
2172 | * @buf: buffer | |
2173 | * | |
2174 | * Return value: | |
2175 | * number of bytes printed to buffer | |
2176 | **/ | |
2177 | static ssize_t ipr_show_write_caching(struct class_device *class_dev, char *buf) | |
2178 | { | |
2179 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2180 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2181 | unsigned long lock_flags = 0; | |
2182 | int i, len = 0; | |
2183 | ||
2184 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2185 | for (i = 0; i < ARRAY_SIZE(cache_state); i++) { | |
2186 | if (cache_state[i].state == ioa_cfg->cache_state) { | |
2187 | len = snprintf(buf, PAGE_SIZE, "%s\n", cache_state[i].name); | |
2188 | break; | |
2189 | } | |
2190 | } | |
2191 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2192 | return len; | |
2193 | } | |
2194 | ||
2195 | ||
2196 | /** | |
2197 | * ipr_store_write_caching - Enable/disable adapter write cache | |
2198 | * @class_dev: class_device struct | |
2199 | * @buf: buffer | |
2200 | * @count: buffer size | |
2201 | * | |
2202 | * This function will enable/disable adapter write cache. | |
2203 | * | |
2204 | * Return value: | |
2205 | * count on success / other on failure | |
2206 | **/ | |
2207 | static ssize_t ipr_store_write_caching(struct class_device *class_dev, | |
2208 | const char *buf, size_t count) | |
2209 | { | |
2210 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2211 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2212 | unsigned long lock_flags = 0; | |
2213 | enum ipr_cache_state new_state = CACHE_INVALID; | |
2214 | int i; | |
2215 | ||
2216 | if (!capable(CAP_SYS_ADMIN)) | |
2217 | return -EACCES; | |
2218 | if (ioa_cfg->cache_state == CACHE_NONE) | |
2219 | return -EINVAL; | |
2220 | ||
2221 | for (i = 0; i < ARRAY_SIZE(cache_state); i++) { | |
2222 | if (!strncmp(cache_state[i].name, buf, strlen(cache_state[i].name))) { | |
2223 | new_state = cache_state[i].state; | |
2224 | break; | |
2225 | } | |
2226 | } | |
2227 | ||
2228 | if (new_state != CACHE_DISABLED && new_state != CACHE_ENABLED) | |
2229 | return -EINVAL; | |
2230 | ||
2231 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2232 | if (ioa_cfg->cache_state == new_state) { | |
2233 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2234 | return count; | |
2235 | } | |
2236 | ||
2237 | ioa_cfg->cache_state = new_state; | |
2238 | dev_info(&ioa_cfg->pdev->dev, "%s adapter write cache.\n", | |
2239 | new_state == CACHE_ENABLED ? "Enabling" : "Disabling"); | |
2240 | if (!ioa_cfg->in_reset_reload) | |
2241 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
2242 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2243 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2244 | ||
2245 | return count; | |
2246 | } | |
2247 | ||
2248 | static struct class_device_attribute ipr_ioa_cache_attr = { | |
2249 | .attr = { | |
2250 | .name = "write_cache", | |
2251 | .mode = S_IRUGO | S_IWUSR, | |
2252 | }, | |
2253 | .show = ipr_show_write_caching, | |
2254 | .store = ipr_store_write_caching | |
2255 | }; | |
2256 | ||
1da177e4 LT |
2257 | /** |
2258 | * ipr_show_fw_version - Show the firmware version | |
2259 | * @class_dev: class device struct | |
2260 | * @buf: buffer | |
2261 | * | |
2262 | * Return value: | |
2263 | * number of bytes printed to buffer | |
2264 | **/ | |
2265 | static ssize_t ipr_show_fw_version(struct class_device *class_dev, char *buf) | |
2266 | { | |
2267 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2268 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2269 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; | |
2270 | unsigned long lock_flags = 0; | |
2271 | int len; | |
2272 | ||
2273 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2274 | len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n", | |
2275 | ucode_vpd->major_release, ucode_vpd->card_type, | |
2276 | ucode_vpd->minor_release[0], | |
2277 | ucode_vpd->minor_release[1]); | |
2278 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2279 | return len; | |
2280 | } | |
2281 | ||
2282 | static struct class_device_attribute ipr_fw_version_attr = { | |
2283 | .attr = { | |
2284 | .name = "fw_version", | |
2285 | .mode = S_IRUGO, | |
2286 | }, | |
2287 | .show = ipr_show_fw_version, | |
2288 | }; | |
2289 | ||
2290 | /** | |
2291 | * ipr_show_log_level - Show the adapter's error logging level | |
2292 | * @class_dev: class device struct | |
2293 | * @buf: buffer | |
2294 | * | |
2295 | * Return value: | |
2296 | * number of bytes printed to buffer | |
2297 | **/ | |
2298 | static ssize_t ipr_show_log_level(struct class_device *class_dev, char *buf) | |
2299 | { | |
2300 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2301 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2302 | unsigned long lock_flags = 0; | |
2303 | int len; | |
2304 | ||
2305 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2306 | len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level); | |
2307 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2308 | return len; | |
2309 | } | |
2310 | ||
2311 | /** | |
2312 | * ipr_store_log_level - Change the adapter's error logging level | |
2313 | * @class_dev: class device struct | |
2314 | * @buf: buffer | |
2315 | * | |
2316 | * Return value: | |
2317 | * number of bytes printed to buffer | |
2318 | **/ | |
2319 | static ssize_t ipr_store_log_level(struct class_device *class_dev, | |
2320 | const char *buf, size_t count) | |
2321 | { | |
2322 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2323 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2324 | unsigned long lock_flags = 0; | |
2325 | ||
2326 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2327 | ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); | |
2328 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2329 | return strlen(buf); | |
2330 | } | |
2331 | ||
2332 | static struct class_device_attribute ipr_log_level_attr = { | |
2333 | .attr = { | |
2334 | .name = "log_level", | |
2335 | .mode = S_IRUGO | S_IWUSR, | |
2336 | }, | |
2337 | .show = ipr_show_log_level, | |
2338 | .store = ipr_store_log_level | |
2339 | }; | |
2340 | ||
2341 | /** | |
2342 | * ipr_store_diagnostics - IOA Diagnostics interface | |
2343 | * @class_dev: class_device struct | |
2344 | * @buf: buffer | |
2345 | * @count: buffer size | |
2346 | * | |
2347 | * This function will reset the adapter and wait a reasonable | |
2348 | * amount of time for any errors that the adapter might log. | |
2349 | * | |
2350 | * Return value: | |
2351 | * count on success / other on failure | |
2352 | **/ | |
2353 | static ssize_t ipr_store_diagnostics(struct class_device *class_dev, | |
2354 | const char *buf, size_t count) | |
2355 | { | |
2356 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2357 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2358 | unsigned long lock_flags = 0; | |
2359 | int rc = count; | |
2360 | ||
2361 | if (!capable(CAP_SYS_ADMIN)) | |
2362 | return -EACCES; | |
2363 | ||
2364 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2365 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2366 | ioa_cfg->errors_logged = 0; | |
2367 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
2368 | ||
2369 | if (ioa_cfg->in_reset_reload) { | |
2370 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2371 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2372 | ||
2373 | /* Wait for a second for any errors to be logged */ | |
2374 | msleep(1000); | |
2375 | } else { | |
2376 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2377 | return -EIO; | |
2378 | } | |
2379 | ||
2380 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2381 | if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) | |
2382 | rc = -EIO; | |
2383 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2384 | ||
2385 | return rc; | |
2386 | } | |
2387 | ||
2388 | static struct class_device_attribute ipr_diagnostics_attr = { | |
2389 | .attr = { | |
2390 | .name = "run_diagnostics", | |
2391 | .mode = S_IWUSR, | |
2392 | }, | |
2393 | .store = ipr_store_diagnostics | |
2394 | }; | |
2395 | ||
f37eb54b BK |
2396 | /** |
2397 | * ipr_show_adapter_state - Show the adapter's state | |
2398 | * @class_dev: class device struct | |
2399 | * @buf: buffer | |
2400 | * | |
2401 | * Return value: | |
2402 | * number of bytes printed to buffer | |
2403 | **/ | |
2404 | static ssize_t ipr_show_adapter_state(struct class_device *class_dev, char *buf) | |
2405 | { | |
2406 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2407 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2408 | unsigned long lock_flags = 0; | |
2409 | int len; | |
2410 | ||
2411 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2412 | if (ioa_cfg->ioa_is_dead) | |
2413 | len = snprintf(buf, PAGE_SIZE, "offline\n"); | |
2414 | else | |
2415 | len = snprintf(buf, PAGE_SIZE, "online\n"); | |
2416 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2417 | return len; | |
2418 | } | |
2419 | ||
2420 | /** | |
2421 | * ipr_store_adapter_state - Change adapter state | |
2422 | * @class_dev: class_device struct | |
2423 | * @buf: buffer | |
2424 | * @count: buffer size | |
2425 | * | |
2426 | * This function will change the adapter's state. | |
2427 | * | |
2428 | * Return value: | |
2429 | * count on success / other on failure | |
2430 | **/ | |
2431 | static ssize_t ipr_store_adapter_state(struct class_device *class_dev, | |
2432 | const char *buf, size_t count) | |
2433 | { | |
2434 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2435 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2436 | unsigned long lock_flags; | |
2437 | int result = count; | |
2438 | ||
2439 | if (!capable(CAP_SYS_ADMIN)) | |
2440 | return -EACCES; | |
2441 | ||
2442 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2443 | if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) { | |
2444 | ioa_cfg->ioa_is_dead = 0; | |
2445 | ioa_cfg->reset_retries = 0; | |
2446 | ioa_cfg->in_ioa_bringdown = 0; | |
2447 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
2448 | } | |
2449 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2450 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2451 | ||
2452 | return result; | |
2453 | } | |
2454 | ||
2455 | static struct class_device_attribute ipr_ioa_state_attr = { | |
2456 | .attr = { | |
2457 | .name = "state", | |
2458 | .mode = S_IRUGO | S_IWUSR, | |
2459 | }, | |
2460 | .show = ipr_show_adapter_state, | |
2461 | .store = ipr_store_adapter_state | |
2462 | }; | |
2463 | ||
1da177e4 LT |
2464 | /** |
2465 | * ipr_store_reset_adapter - Reset the adapter | |
2466 | * @class_dev: class_device struct | |
2467 | * @buf: buffer | |
2468 | * @count: buffer size | |
2469 | * | |
2470 | * This function will reset the adapter. | |
2471 | * | |
2472 | * Return value: | |
2473 | * count on success / other on failure | |
2474 | **/ | |
2475 | static ssize_t ipr_store_reset_adapter(struct class_device *class_dev, | |
2476 | const char *buf, size_t count) | |
2477 | { | |
2478 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2479 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2480 | unsigned long lock_flags; | |
2481 | int result = count; | |
2482 | ||
2483 | if (!capable(CAP_SYS_ADMIN)) | |
2484 | return -EACCES; | |
2485 | ||
2486 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2487 | if (!ioa_cfg->in_reset_reload) | |
2488 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
2489 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2490 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2491 | ||
2492 | return result; | |
2493 | } | |
2494 | ||
2495 | static struct class_device_attribute ipr_ioa_reset_attr = { | |
2496 | .attr = { | |
2497 | .name = "reset_host", | |
2498 | .mode = S_IWUSR, | |
2499 | }, | |
2500 | .store = ipr_store_reset_adapter | |
2501 | }; | |
2502 | ||
2503 | /** | |
2504 | * ipr_alloc_ucode_buffer - Allocates a microcode download buffer | |
2505 | * @buf_len: buffer length | |
2506 | * | |
2507 | * Allocates a DMA'able buffer in chunks and assembles a scatter/gather | |
2508 | * list to use for microcode download | |
2509 | * | |
2510 | * Return value: | |
2511 | * pointer to sglist / NULL on failure | |
2512 | **/ | |
2513 | static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) | |
2514 | { | |
2515 | int sg_size, order, bsize_elem, num_elem, i, j; | |
2516 | struct ipr_sglist *sglist; | |
2517 | struct scatterlist *scatterlist; | |
2518 | struct page *page; | |
2519 | ||
2520 | /* Get the minimum size per scatter/gather element */ | |
2521 | sg_size = buf_len / (IPR_MAX_SGLIST - 1); | |
2522 | ||
2523 | /* Get the actual size per element */ | |
2524 | order = get_order(sg_size); | |
2525 | ||
2526 | /* Determine the actual number of bytes per element */ | |
2527 | bsize_elem = PAGE_SIZE * (1 << order); | |
2528 | ||
2529 | /* Determine the actual number of sg entries needed */ | |
2530 | if (buf_len % bsize_elem) | |
2531 | num_elem = (buf_len / bsize_elem) + 1; | |
2532 | else | |
2533 | num_elem = buf_len / bsize_elem; | |
2534 | ||
2535 | /* Allocate a scatter/gather list for the DMA */ | |
0bc42e35 | 2536 | sglist = kzalloc(sizeof(struct ipr_sglist) + |
1da177e4 LT |
2537 | (sizeof(struct scatterlist) * (num_elem - 1)), |
2538 | GFP_KERNEL); | |
2539 | ||
2540 | if (sglist == NULL) { | |
2541 | ipr_trace; | |
2542 | return NULL; | |
2543 | } | |
2544 | ||
1da177e4 LT |
2545 | scatterlist = sglist->scatterlist; |
2546 | ||
2547 | sglist->order = order; | |
2548 | sglist->num_sg = num_elem; | |
2549 | ||
2550 | /* Allocate a bunch of sg elements */ | |
2551 | for (i = 0; i < num_elem; i++) { | |
2552 | page = alloc_pages(GFP_KERNEL, order); | |
2553 | if (!page) { | |
2554 | ipr_trace; | |
2555 | ||
2556 | /* Free up what we already allocated */ | |
2557 | for (j = i - 1; j >= 0; j--) | |
2558 | __free_pages(scatterlist[j].page, order); | |
2559 | kfree(sglist); | |
2560 | return NULL; | |
2561 | } | |
2562 | ||
2563 | scatterlist[i].page = page; | |
2564 | } | |
2565 | ||
2566 | return sglist; | |
2567 | } | |
2568 | ||
2569 | /** | |
2570 | * ipr_free_ucode_buffer - Frees a microcode download buffer | |
2571 | * @p_dnld: scatter/gather list pointer | |
2572 | * | |
2573 | * Free a DMA'able ucode download buffer previously allocated with | |
2574 | * ipr_alloc_ucode_buffer | |
2575 | * | |
2576 | * Return value: | |
2577 | * nothing | |
2578 | **/ | |
2579 | static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) | |
2580 | { | |
2581 | int i; | |
2582 | ||
2583 | for (i = 0; i < sglist->num_sg; i++) | |
2584 | __free_pages(sglist->scatterlist[i].page, sglist->order); | |
2585 | ||
2586 | kfree(sglist); | |
2587 | } | |
2588 | ||
2589 | /** | |
2590 | * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer | |
2591 | * @sglist: scatter/gather list pointer | |
2592 | * @buffer: buffer pointer | |
2593 | * @len: buffer length | |
2594 | * | |
2595 | * Copy a microcode image from a user buffer into a buffer allocated by | |
2596 | * ipr_alloc_ucode_buffer | |
2597 | * | |
2598 | * Return value: | |
2599 | * 0 on success / other on failure | |
2600 | **/ | |
2601 | static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, | |
2602 | u8 *buffer, u32 len) | |
2603 | { | |
2604 | int bsize_elem, i, result = 0; | |
2605 | struct scatterlist *scatterlist; | |
2606 | void *kaddr; | |
2607 | ||
2608 | /* Determine the actual number of bytes per element */ | |
2609 | bsize_elem = PAGE_SIZE * (1 << sglist->order); | |
2610 | ||
2611 | scatterlist = sglist->scatterlist; | |
2612 | ||
2613 | for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) { | |
2614 | kaddr = kmap(scatterlist[i].page); | |
2615 | memcpy(kaddr, buffer, bsize_elem); | |
2616 | kunmap(scatterlist[i].page); | |
2617 | ||
2618 | scatterlist[i].length = bsize_elem; | |
2619 | ||
2620 | if (result != 0) { | |
2621 | ipr_trace; | |
2622 | return result; | |
2623 | } | |
2624 | } | |
2625 | ||
2626 | if (len % bsize_elem) { | |
2627 | kaddr = kmap(scatterlist[i].page); | |
2628 | memcpy(kaddr, buffer, len % bsize_elem); | |
2629 | kunmap(scatterlist[i].page); | |
2630 | ||
2631 | scatterlist[i].length = len % bsize_elem; | |
2632 | } | |
2633 | ||
2634 | sglist->buffer_len = len; | |
2635 | return result; | |
2636 | } | |
2637 | ||
2638 | /** | |
12baa420 | 2639 | * ipr_build_ucode_ioadl - Build a microcode download IOADL |
1da177e4 LT |
2640 | * @ipr_cmd: ipr command struct |
2641 | * @sglist: scatter/gather list | |
1da177e4 | 2642 | * |
12baa420 | 2643 | * Builds a microcode download IOA data list (IOADL). |
1da177e4 | 2644 | * |
1da177e4 | 2645 | **/ |
12baa420 BK |
2646 | static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, |
2647 | struct ipr_sglist *sglist) | |
1da177e4 | 2648 | { |
1da177e4 LT |
2649 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
2650 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
2651 | struct scatterlist *scatterlist = sglist->scatterlist; | |
2652 | int i; | |
2653 | ||
12baa420 | 2654 | ipr_cmd->dma_use_sg = sglist->num_dma_sg; |
1da177e4 | 2655 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
12baa420 | 2656 | ioarcb->write_data_transfer_length = cpu_to_be32(sglist->buffer_len); |
1da177e4 LT |
2657 | ioarcb->write_ioadl_len = |
2658 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
2659 | ||
2660 | for (i = 0; i < ipr_cmd->dma_use_sg; i++) { | |
2661 | ioadl[i].flags_and_data_len = | |
2662 | cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i])); | |
2663 | ioadl[i].address = | |
2664 | cpu_to_be32(sg_dma_address(&scatterlist[i])); | |
2665 | } | |
2666 | ||
12baa420 BK |
2667 | ioadl[i-1].flags_and_data_len |= |
2668 | cpu_to_be32(IPR_IOADL_FLAGS_LAST); | |
2669 | } | |
2670 | ||
2671 | /** | |
2672 | * ipr_update_ioa_ucode - Update IOA's microcode | |
2673 | * @ioa_cfg: ioa config struct | |
2674 | * @sglist: scatter/gather list | |
2675 | * | |
2676 | * Initiate an adapter reset to update the IOA's microcode | |
2677 | * | |
2678 | * Return value: | |
2679 | * 0 on success / -EIO on failure | |
2680 | **/ | |
2681 | static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, | |
2682 | struct ipr_sglist *sglist) | |
2683 | { | |
2684 | unsigned long lock_flags; | |
2685 | ||
2686 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2687 | ||
2688 | if (ioa_cfg->ucode_sglist) { | |
2689 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2690 | dev_err(&ioa_cfg->pdev->dev, | |
2691 | "Microcode download already in progress\n"); | |
2692 | return -EIO; | |
1da177e4 | 2693 | } |
12baa420 BK |
2694 | |
2695 | sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist, | |
2696 | sglist->num_sg, DMA_TO_DEVICE); | |
2697 | ||
2698 | if (!sglist->num_dma_sg) { | |
2699 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2700 | dev_err(&ioa_cfg->pdev->dev, | |
2701 | "Failed to map microcode download buffer!\n"); | |
1da177e4 LT |
2702 | return -EIO; |
2703 | } | |
2704 | ||
12baa420 BK |
2705 | ioa_cfg->ucode_sglist = sglist; |
2706 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
2707 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2708 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2709 | ||
2710 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2711 | ioa_cfg->ucode_sglist = NULL; | |
2712 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1da177e4 LT |
2713 | return 0; |
2714 | } | |
2715 | ||
2716 | /** | |
2717 | * ipr_store_update_fw - Update the firmware on the adapter | |
2718 | * @class_dev: class_device struct | |
2719 | * @buf: buffer | |
2720 | * @count: buffer size | |
2721 | * | |
2722 | * This function will update the firmware on the adapter. | |
2723 | * | |
2724 | * Return value: | |
2725 | * count on success / other on failure | |
2726 | **/ | |
2727 | static ssize_t ipr_store_update_fw(struct class_device *class_dev, | |
2728 | const char *buf, size_t count) | |
2729 | { | |
2730 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2731 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2732 | struct ipr_ucode_image_header *image_hdr; | |
2733 | const struct firmware *fw_entry; | |
2734 | struct ipr_sglist *sglist; | |
1da177e4 LT |
2735 | char fname[100]; |
2736 | char *src; | |
2737 | int len, result, dnld_size; | |
2738 | ||
2739 | if (!capable(CAP_SYS_ADMIN)) | |
2740 | return -EACCES; | |
2741 | ||
2742 | len = snprintf(fname, 99, "%s", buf); | |
2743 | fname[len-1] = '\0'; | |
2744 | ||
2745 | if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) { | |
2746 | dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname); | |
2747 | return -EIO; | |
2748 | } | |
2749 | ||
2750 | image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; | |
2751 | ||
2752 | if (be32_to_cpu(image_hdr->header_length) > fw_entry->size || | |
2753 | (ioa_cfg->vpd_cbs->page3_data.card_type && | |
2754 | ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) { | |
2755 | dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n"); | |
2756 | release_firmware(fw_entry); | |
2757 | return -EINVAL; | |
2758 | } | |
2759 | ||
2760 | src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); | |
2761 | dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); | |
2762 | sglist = ipr_alloc_ucode_buffer(dnld_size); | |
2763 | ||
2764 | if (!sglist) { | |
2765 | dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n"); | |
2766 | release_firmware(fw_entry); | |
2767 | return -ENOMEM; | |
2768 | } | |
2769 | ||
2770 | result = ipr_copy_ucode_buffer(sglist, src, dnld_size); | |
2771 | ||
2772 | if (result) { | |
2773 | dev_err(&ioa_cfg->pdev->dev, | |
2774 | "Microcode buffer copy to DMA buffer failed\n"); | |
12baa420 | 2775 | goto out; |
1da177e4 LT |
2776 | } |
2777 | ||
12baa420 | 2778 | result = ipr_update_ioa_ucode(ioa_cfg, sglist); |
1da177e4 | 2779 | |
12baa420 BK |
2780 | if (!result) |
2781 | result = count; | |
2782 | out: | |
1da177e4 LT |
2783 | ipr_free_ucode_buffer(sglist); |
2784 | release_firmware(fw_entry); | |
12baa420 | 2785 | return result; |
1da177e4 LT |
2786 | } |
2787 | ||
2788 | static struct class_device_attribute ipr_update_fw_attr = { | |
2789 | .attr = { | |
2790 | .name = "update_fw", | |
2791 | .mode = S_IWUSR, | |
2792 | }, | |
2793 | .store = ipr_store_update_fw | |
2794 | }; | |
2795 | ||
2796 | static struct class_device_attribute *ipr_ioa_attrs[] = { | |
2797 | &ipr_fw_version_attr, | |
2798 | &ipr_log_level_attr, | |
2799 | &ipr_diagnostics_attr, | |
f37eb54b | 2800 | &ipr_ioa_state_attr, |
1da177e4 LT |
2801 | &ipr_ioa_reset_attr, |
2802 | &ipr_update_fw_attr, | |
62275040 | 2803 | &ipr_ioa_cache_attr, |
1da177e4 LT |
2804 | NULL, |
2805 | }; | |
2806 | ||
2807 | #ifdef CONFIG_SCSI_IPR_DUMP | |
2808 | /** | |
2809 | * ipr_read_dump - Dump the adapter | |
2810 | * @kobj: kobject struct | |
2811 | * @buf: buffer | |
2812 | * @off: offset | |
2813 | * @count: buffer size | |
2814 | * | |
2815 | * Return value: | |
2816 | * number of bytes printed to buffer | |
2817 | **/ | |
2818 | static ssize_t ipr_read_dump(struct kobject *kobj, char *buf, | |
2819 | loff_t off, size_t count) | |
2820 | { | |
2821 | struct class_device *cdev = container_of(kobj,struct class_device,kobj); | |
2822 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2823 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2824 | struct ipr_dump *dump; | |
2825 | unsigned long lock_flags = 0; | |
2826 | char *src; | |
2827 | int len; | |
2828 | size_t rc = count; | |
2829 | ||
2830 | if (!capable(CAP_SYS_ADMIN)) | |
2831 | return -EACCES; | |
2832 | ||
2833 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2834 | dump = ioa_cfg->dump; | |
2835 | ||
2836 | if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { | |
2837 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2838 | return 0; | |
2839 | } | |
2840 | kref_get(&dump->kref); | |
2841 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2842 | ||
2843 | if (off > dump->driver_dump.hdr.len) { | |
2844 | kref_put(&dump->kref, ipr_release_dump); | |
2845 | return 0; | |
2846 | } | |
2847 | ||
2848 | if (off + count > dump->driver_dump.hdr.len) { | |
2849 | count = dump->driver_dump.hdr.len - off; | |
2850 | rc = count; | |
2851 | } | |
2852 | ||
2853 | if (count && off < sizeof(dump->driver_dump)) { | |
2854 | if (off + count > sizeof(dump->driver_dump)) | |
2855 | len = sizeof(dump->driver_dump) - off; | |
2856 | else | |
2857 | len = count; | |
2858 | src = (u8 *)&dump->driver_dump + off; | |
2859 | memcpy(buf, src, len); | |
2860 | buf += len; | |
2861 | off += len; | |
2862 | count -= len; | |
2863 | } | |
2864 | ||
2865 | off -= sizeof(dump->driver_dump); | |
2866 | ||
2867 | if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) { | |
2868 | if (off + count > offsetof(struct ipr_ioa_dump, ioa_data)) | |
2869 | len = offsetof(struct ipr_ioa_dump, ioa_data) - off; | |
2870 | else | |
2871 | len = count; | |
2872 | src = (u8 *)&dump->ioa_dump + off; | |
2873 | memcpy(buf, src, len); | |
2874 | buf += len; | |
2875 | off += len; | |
2876 | count -= len; | |
2877 | } | |
2878 | ||
2879 | off -= offsetof(struct ipr_ioa_dump, ioa_data); | |
2880 | ||
2881 | while (count) { | |
2882 | if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) | |
2883 | len = PAGE_ALIGN(off) - off; | |
2884 | else | |
2885 | len = count; | |
2886 | src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; | |
2887 | src += off & ~PAGE_MASK; | |
2888 | memcpy(buf, src, len); | |
2889 | buf += len; | |
2890 | off += len; | |
2891 | count -= len; | |
2892 | } | |
2893 | ||
2894 | kref_put(&dump->kref, ipr_release_dump); | |
2895 | return rc; | |
2896 | } | |
2897 | ||
2898 | /** | |
2899 | * ipr_alloc_dump - Prepare for adapter dump | |
2900 | * @ioa_cfg: ioa config struct | |
2901 | * | |
2902 | * Return value: | |
2903 | * 0 on success / other on failure | |
2904 | **/ | |
2905 | static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) | |
2906 | { | |
2907 | struct ipr_dump *dump; | |
2908 | unsigned long lock_flags = 0; | |
2909 | ||
2910 | ENTER; | |
0bc42e35 | 2911 | dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL); |
1da177e4 LT |
2912 | |
2913 | if (!dump) { | |
2914 | ipr_err("Dump memory allocation failed\n"); | |
2915 | return -ENOMEM; | |
2916 | } | |
2917 | ||
1da177e4 LT |
2918 | kref_init(&dump->kref); |
2919 | dump->ioa_cfg = ioa_cfg; | |
2920 | ||
2921 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2922 | ||
2923 | if (INACTIVE != ioa_cfg->sdt_state) { | |
2924 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2925 | kfree(dump); | |
2926 | return 0; | |
2927 | } | |
2928 | ||
2929 | ioa_cfg->dump = dump; | |
2930 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; | |
2931 | if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) { | |
2932 | ioa_cfg->dump_taken = 1; | |
2933 | schedule_work(&ioa_cfg->work_q); | |
2934 | } | |
2935 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2936 | ||
2937 | LEAVE; | |
2938 | return 0; | |
2939 | } | |
2940 | ||
2941 | /** | |
2942 | * ipr_free_dump - Free adapter dump memory | |
2943 | * @ioa_cfg: ioa config struct | |
2944 | * | |
2945 | * Return value: | |
2946 | * 0 on success / other on failure | |
2947 | **/ | |
2948 | static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) | |
2949 | { | |
2950 | struct ipr_dump *dump; | |
2951 | unsigned long lock_flags = 0; | |
2952 | ||
2953 | ENTER; | |
2954 | ||
2955 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2956 | dump = ioa_cfg->dump; | |
2957 | if (!dump) { | |
2958 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2959 | return 0; | |
2960 | } | |
2961 | ||
2962 | ioa_cfg->dump = NULL; | |
2963 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2964 | ||
2965 | kref_put(&dump->kref, ipr_release_dump); | |
2966 | ||
2967 | LEAVE; | |
2968 | return 0; | |
2969 | } | |
2970 | ||
2971 | /** | |
2972 | * ipr_write_dump - Setup dump state of adapter | |
2973 | * @kobj: kobject struct | |
2974 | * @buf: buffer | |
2975 | * @off: offset | |
2976 | * @count: buffer size | |
2977 | * | |
2978 | * Return value: | |
2979 | * number of bytes printed to buffer | |
2980 | **/ | |
2981 | static ssize_t ipr_write_dump(struct kobject *kobj, char *buf, | |
2982 | loff_t off, size_t count) | |
2983 | { | |
2984 | struct class_device *cdev = container_of(kobj,struct class_device,kobj); | |
2985 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2986 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2987 | int rc; | |
2988 | ||
2989 | if (!capable(CAP_SYS_ADMIN)) | |
2990 | return -EACCES; | |
2991 | ||
2992 | if (buf[0] == '1') | |
2993 | rc = ipr_alloc_dump(ioa_cfg); | |
2994 | else if (buf[0] == '0') | |
2995 | rc = ipr_free_dump(ioa_cfg); | |
2996 | else | |
2997 | return -EINVAL; | |
2998 | ||
2999 | if (rc) | |
3000 | return rc; | |
3001 | else | |
3002 | return count; | |
3003 | } | |
3004 | ||
3005 | static struct bin_attribute ipr_dump_attr = { | |
3006 | .attr = { | |
3007 | .name = "dump", | |
3008 | .mode = S_IRUSR | S_IWUSR, | |
3009 | }, | |
3010 | .size = 0, | |
3011 | .read = ipr_read_dump, | |
3012 | .write = ipr_write_dump | |
3013 | }; | |
3014 | #else | |
3015 | static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; | |
3016 | #endif | |
3017 | ||
3018 | /** | |
3019 | * ipr_change_queue_depth - Change the device's queue depth | |
3020 | * @sdev: scsi device struct | |
3021 | * @qdepth: depth to set | |
3022 | * | |
3023 | * Return value: | |
3024 | * actual depth set | |
3025 | **/ | |
3026 | static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth) | |
3027 | { | |
3028 | scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); | |
3029 | return sdev->queue_depth; | |
3030 | } | |
3031 | ||
3032 | /** | |
3033 | * ipr_change_queue_type - Change the device's queue type | |
3034 | * @dsev: scsi device struct | |
3035 | * @tag_type: type of tags to use | |
3036 | * | |
3037 | * Return value: | |
3038 | * actual queue type set | |
3039 | **/ | |
3040 | static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type) | |
3041 | { | |
3042 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; | |
3043 | struct ipr_resource_entry *res; | |
3044 | unsigned long lock_flags = 0; | |
3045 | ||
3046 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3047 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
3048 | ||
3049 | if (res) { | |
3050 | if (ipr_is_gscsi(res) && sdev->tagged_supported) { | |
3051 | /* | |
3052 | * We don't bother quiescing the device here since the | |
3053 | * adapter firmware does it for us. | |
3054 | */ | |
3055 | scsi_set_tag_type(sdev, tag_type); | |
3056 | ||
3057 | if (tag_type) | |
3058 | scsi_activate_tcq(sdev, sdev->queue_depth); | |
3059 | else | |
3060 | scsi_deactivate_tcq(sdev, sdev->queue_depth); | |
3061 | } else | |
3062 | tag_type = 0; | |
3063 | } else | |
3064 | tag_type = 0; | |
3065 | ||
3066 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3067 | return tag_type; | |
3068 | } | |
3069 | ||
3070 | /** | |
3071 | * ipr_show_adapter_handle - Show the adapter's resource handle for this device | |
3072 | * @dev: device struct | |
3073 | * @buf: buffer | |
3074 | * | |
3075 | * Return value: | |
3076 | * number of bytes printed to buffer | |
3077 | **/ | |
10523b3b | 3078 | static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
3079 | { |
3080 | struct scsi_device *sdev = to_scsi_device(dev); | |
3081 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; | |
3082 | struct ipr_resource_entry *res; | |
3083 | unsigned long lock_flags = 0; | |
3084 | ssize_t len = -ENXIO; | |
3085 | ||
3086 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3087 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
3088 | if (res) | |
3089 | len = snprintf(buf, PAGE_SIZE, "%08X\n", res->cfgte.res_handle); | |
3090 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3091 | return len; | |
3092 | } | |
3093 | ||
3094 | static struct device_attribute ipr_adapter_handle_attr = { | |
3095 | .attr = { | |
3096 | .name = "adapter_handle", | |
3097 | .mode = S_IRUSR, | |
3098 | }, | |
3099 | .show = ipr_show_adapter_handle | |
3100 | }; | |
3101 | ||
3102 | static struct device_attribute *ipr_dev_attrs[] = { | |
3103 | &ipr_adapter_handle_attr, | |
3104 | NULL, | |
3105 | }; | |
3106 | ||
3107 | /** | |
3108 | * ipr_biosparam - Return the HSC mapping | |
3109 | * @sdev: scsi device struct | |
3110 | * @block_device: block device pointer | |
3111 | * @capacity: capacity of the device | |
3112 | * @parm: Array containing returned HSC values. | |
3113 | * | |
3114 | * This function generates the HSC parms that fdisk uses. | |
3115 | * We want to make sure we return something that places partitions | |
3116 | * on 4k boundaries for best performance with the IOA. | |
3117 | * | |
3118 | * Return value: | |
3119 | * 0 on success | |
3120 | **/ | |
3121 | static int ipr_biosparam(struct scsi_device *sdev, | |
3122 | struct block_device *block_device, | |
3123 | sector_t capacity, int *parm) | |
3124 | { | |
3125 | int heads, sectors; | |
3126 | sector_t cylinders; | |
3127 | ||
3128 | heads = 128; | |
3129 | sectors = 32; | |
3130 | ||
3131 | cylinders = capacity; | |
3132 | sector_div(cylinders, (128 * 32)); | |
3133 | ||
3134 | /* return result */ | |
3135 | parm[0] = heads; | |
3136 | parm[1] = sectors; | |
3137 | parm[2] = cylinders; | |
3138 | ||
3139 | return 0; | |
3140 | } | |
3141 | ||
3142 | /** | |
3143 | * ipr_slave_destroy - Unconfigure a SCSI device | |
3144 | * @sdev: scsi device struct | |
3145 | * | |
3146 | * Return value: | |
3147 | * nothing | |
3148 | **/ | |
3149 | static void ipr_slave_destroy(struct scsi_device *sdev) | |
3150 | { | |
3151 | struct ipr_resource_entry *res; | |
3152 | struct ipr_ioa_cfg *ioa_cfg; | |
3153 | unsigned long lock_flags = 0; | |
3154 | ||
3155 | ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
3156 | ||
3157 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3158 | res = (struct ipr_resource_entry *) sdev->hostdata; | |
3159 | if (res) { | |
3160 | sdev->hostdata = NULL; | |
3161 | res->sdev = NULL; | |
3162 | } | |
3163 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3164 | } | |
3165 | ||
3166 | /** | |
3167 | * ipr_slave_configure - Configure a SCSI device | |
3168 | * @sdev: scsi device struct | |
3169 | * | |
3170 | * This function configures the specified scsi device. | |
3171 | * | |
3172 | * Return value: | |
3173 | * 0 on success | |
3174 | **/ | |
3175 | static int ipr_slave_configure(struct scsi_device *sdev) | |
3176 | { | |
3177 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
3178 | struct ipr_resource_entry *res; | |
3179 | unsigned long lock_flags = 0; | |
3180 | ||
3181 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3182 | res = sdev->hostdata; | |
3183 | if (res) { | |
3184 | if (ipr_is_af_dasd_device(res)) | |
3185 | sdev->type = TYPE_RAID; | |
0726ce26 | 3186 | if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { |
1da177e4 | 3187 | sdev->scsi_level = 4; |
0726ce26 BK |
3188 | sdev->no_uld_attach = 1; |
3189 | } | |
1da177e4 LT |
3190 | if (ipr_is_vset_device(res)) { |
3191 | sdev->timeout = IPR_VSET_RW_TIMEOUT; | |
3192 | blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); | |
3193 | } | |
e4fbf44e | 3194 | if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)) |
1da177e4 LT |
3195 | sdev->allow_restart = 1; |
3196 | scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); | |
3197 | } | |
3198 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3199 | return 0; | |
3200 | } | |
3201 | ||
3202 | /** | |
3203 | * ipr_slave_alloc - Prepare for commands to a device. | |
3204 | * @sdev: scsi device struct | |
3205 | * | |
3206 | * This function saves a pointer to the resource entry | |
3207 | * in the scsi device struct if the device exists. We | |
3208 | * can then use this pointer in ipr_queuecommand when | |
3209 | * handling new commands. | |
3210 | * | |
3211 | * Return value: | |
692aebfc | 3212 | * 0 on success / -ENXIO if device does not exist |
1da177e4 LT |
3213 | **/ |
3214 | static int ipr_slave_alloc(struct scsi_device *sdev) | |
3215 | { | |
3216 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
3217 | struct ipr_resource_entry *res; | |
3218 | unsigned long lock_flags; | |
692aebfc | 3219 | int rc = -ENXIO; |
1da177e4 LT |
3220 | |
3221 | sdev->hostdata = NULL; | |
3222 | ||
3223 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3224 | ||
3225 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3226 | if ((res->cfgte.res_addr.bus == sdev->channel) && | |
3227 | (res->cfgte.res_addr.target == sdev->id) && | |
3228 | (res->cfgte.res_addr.lun == sdev->lun)) { | |
3229 | res->sdev = sdev; | |
3230 | res->add_to_ml = 0; | |
3231 | res->in_erp = 0; | |
3232 | sdev->hostdata = res; | |
ee0a90fa BK |
3233 | if (!ipr_is_naca_model(res)) |
3234 | res->needs_sync_complete = 1; | |
692aebfc | 3235 | rc = 0; |
1da177e4 LT |
3236 | break; |
3237 | } | |
3238 | } | |
3239 | ||
3240 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3241 | ||
692aebfc | 3242 | return rc; |
1da177e4 LT |
3243 | } |
3244 | ||
3245 | /** | |
3246 | * ipr_eh_host_reset - Reset the host adapter | |
3247 | * @scsi_cmd: scsi command struct | |
3248 | * | |
3249 | * Return value: | |
3250 | * SUCCESS / FAILED | |
3251 | **/ | |
df0ae249 | 3252 | static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd) |
1da177e4 LT |
3253 | { |
3254 | struct ipr_ioa_cfg *ioa_cfg; | |
3255 | int rc; | |
3256 | ||
3257 | ENTER; | |
3258 | ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; | |
3259 | ||
3260 | dev_err(&ioa_cfg->pdev->dev, | |
3261 | "Adapter being reset as a result of error recovery.\n"); | |
3262 | ||
3263 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
3264 | ioa_cfg->sdt_state = GET_DUMP; | |
3265 | ||
3266 | rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV); | |
3267 | ||
3268 | LEAVE; | |
3269 | return rc; | |
3270 | } | |
3271 | ||
df0ae249 JG |
3272 | static int ipr_eh_host_reset(struct scsi_cmnd * cmd) |
3273 | { | |
3274 | int rc; | |
3275 | ||
3276 | spin_lock_irq(cmd->device->host->host_lock); | |
3277 | rc = __ipr_eh_host_reset(cmd); | |
3278 | spin_unlock_irq(cmd->device->host->host_lock); | |
3279 | ||
3280 | return rc; | |
3281 | } | |
3282 | ||
1da177e4 LT |
3283 | /** |
3284 | * ipr_eh_dev_reset - Reset the device | |
3285 | * @scsi_cmd: scsi command struct | |
3286 | * | |
3287 | * This function issues a device reset to the affected device. | |
3288 | * A LUN reset will be sent to the device first. If that does | |
3289 | * not work, a target reset will be sent. | |
3290 | * | |
3291 | * Return value: | |
3292 | * SUCCESS / FAILED | |
3293 | **/ | |
94d0e7b8 | 3294 | static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd) |
1da177e4 LT |
3295 | { |
3296 | struct ipr_cmnd *ipr_cmd; | |
3297 | struct ipr_ioa_cfg *ioa_cfg; | |
3298 | struct ipr_resource_entry *res; | |
3299 | struct ipr_cmd_pkt *cmd_pkt; | |
3300 | u32 ioasc; | |
3301 | ||
3302 | ENTER; | |
3303 | ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; | |
3304 | res = scsi_cmd->device->hostdata; | |
3305 | ||
eeb88307 | 3306 | if (!res) |
1da177e4 LT |
3307 | return FAILED; |
3308 | ||
3309 | /* | |
3310 | * If we are currently going through reset/reload, return failed. This will force the | |
3311 | * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the | |
3312 | * reset to complete | |
3313 | */ | |
3314 | if (ioa_cfg->in_reset_reload) | |
3315 | return FAILED; | |
3316 | if (ioa_cfg->ioa_is_dead) | |
3317 | return FAILED; | |
3318 | ||
3319 | list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { | |
3320 | if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) { | |
3321 | if (ipr_cmd->scsi_cmd) | |
3322 | ipr_cmd->done = ipr_scsi_eh_done; | |
3323 | } | |
3324 | } | |
3325 | ||
3326 | res->resetting_device = 1; | |
3327 | ||
3328 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
3329 | ||
3330 | ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle; | |
3331 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; | |
3332 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
3333 | cmd_pkt->cdb[0] = IPR_RESET_DEVICE; | |
3334 | ||
3335 | ipr_sdev_err(scsi_cmd->device, "Resetting device\n"); | |
3336 | ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); | |
3337 | ||
3338 | ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
3339 | ||
3340 | res->resetting_device = 0; | |
3341 | ||
3342 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
3343 | ||
3344 | LEAVE; | |
3345 | return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS); | |
3346 | } | |
3347 | ||
94d0e7b8 JG |
3348 | static int ipr_eh_dev_reset(struct scsi_cmnd * cmd) |
3349 | { | |
3350 | int rc; | |
3351 | ||
3352 | spin_lock_irq(cmd->device->host->host_lock); | |
3353 | rc = __ipr_eh_dev_reset(cmd); | |
3354 | spin_unlock_irq(cmd->device->host->host_lock); | |
3355 | ||
3356 | return rc; | |
3357 | } | |
3358 | ||
1da177e4 LT |
3359 | /** |
3360 | * ipr_bus_reset_done - Op done function for bus reset. | |
3361 | * @ipr_cmd: ipr command struct | |
3362 | * | |
3363 | * This function is the op done function for a bus reset | |
3364 | * | |
3365 | * Return value: | |
3366 | * none | |
3367 | **/ | |
3368 | static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) | |
3369 | { | |
3370 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
3371 | struct ipr_resource_entry *res; | |
3372 | ||
3373 | ENTER; | |
3374 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3375 | if (!memcmp(&res->cfgte.res_handle, &ipr_cmd->ioarcb.res_handle, | |
3376 | sizeof(res->cfgte.res_handle))) { | |
3377 | scsi_report_bus_reset(ioa_cfg->host, res->cfgte.res_addr.bus); | |
3378 | break; | |
3379 | } | |
3380 | } | |
3381 | ||
3382 | /* | |
3383 | * If abort has not completed, indicate the reset has, else call the | |
3384 | * abort's done function to wake the sleeping eh thread | |
3385 | */ | |
3386 | if (ipr_cmd->sibling->sibling) | |
3387 | ipr_cmd->sibling->sibling = NULL; | |
3388 | else | |
3389 | ipr_cmd->sibling->done(ipr_cmd->sibling); | |
3390 | ||
3391 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
3392 | LEAVE; | |
3393 | } | |
3394 | ||
3395 | /** | |
3396 | * ipr_abort_timeout - An abort task has timed out | |
3397 | * @ipr_cmd: ipr command struct | |
3398 | * | |
3399 | * This function handles when an abort task times out. If this | |
3400 | * happens we issue a bus reset since we have resources tied | |
3401 | * up that must be freed before returning to the midlayer. | |
3402 | * | |
3403 | * Return value: | |
3404 | * none | |
3405 | **/ | |
3406 | static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd) | |
3407 | { | |
3408 | struct ipr_cmnd *reset_cmd; | |
3409 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
3410 | struct ipr_cmd_pkt *cmd_pkt; | |
3411 | unsigned long lock_flags = 0; | |
3412 | ||
3413 | ENTER; | |
3414 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3415 | if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { | |
3416 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3417 | return; | |
3418 | } | |
3419 | ||
3420 | ipr_sdev_err(ipr_cmd->u.sdev, "Abort timed out. Resetting bus\n"); | |
3421 | reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
3422 | ipr_cmd->sibling = reset_cmd; | |
3423 | reset_cmd->sibling = ipr_cmd; | |
3424 | reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; | |
3425 | cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; | |
3426 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
3427 | cmd_pkt->cdb[0] = IPR_RESET_DEVICE; | |
3428 | cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; | |
3429 | ||
3430 | ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); | |
3431 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3432 | LEAVE; | |
3433 | } | |
3434 | ||
3435 | /** | |
3436 | * ipr_cancel_op - Cancel specified op | |
3437 | * @scsi_cmd: scsi command struct | |
3438 | * | |
3439 | * This function cancels specified op. | |
3440 | * | |
3441 | * Return value: | |
3442 | * SUCCESS / FAILED | |
3443 | **/ | |
3444 | static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd) | |
3445 | { | |
3446 | struct ipr_cmnd *ipr_cmd; | |
3447 | struct ipr_ioa_cfg *ioa_cfg; | |
3448 | struct ipr_resource_entry *res; | |
3449 | struct ipr_cmd_pkt *cmd_pkt; | |
3450 | u32 ioasc; | |
3451 | int op_found = 0; | |
3452 | ||
3453 | ENTER; | |
3454 | ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; | |
3455 | res = scsi_cmd->device->hostdata; | |
3456 | ||
8fa728a2 JG |
3457 | /* If we are currently going through reset/reload, return failed. |
3458 | * This will force the mid-layer to call ipr_eh_host_reset, | |
3459 | * which will then go to sleep and wait for the reset to complete | |
3460 | */ | |
3461 | if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead) | |
3462 | return FAILED; | |
1da177e4 LT |
3463 | if (!res || (!ipr_is_gscsi(res) && !ipr_is_vset_device(res))) |
3464 | return FAILED; | |
3465 | ||
3466 | list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { | |
3467 | if (ipr_cmd->scsi_cmd == scsi_cmd) { | |
3468 | ipr_cmd->done = ipr_scsi_eh_done; | |
3469 | op_found = 1; | |
3470 | break; | |
3471 | } | |
3472 | } | |
3473 | ||
3474 | if (!op_found) | |
3475 | return SUCCESS; | |
3476 | ||
3477 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
3478 | ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle; | |
3479 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; | |
3480 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
3481 | cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; | |
3482 | ipr_cmd->u.sdev = scsi_cmd->device; | |
3483 | ||
3484 | ipr_sdev_err(scsi_cmd->device, "Aborting command: %02X\n", scsi_cmd->cmnd[0]); | |
3485 | ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); | |
3486 | ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
3487 | ||
3488 | /* | |
3489 | * If the abort task timed out and we sent a bus reset, we will get | |
3490 | * one the following responses to the abort | |
3491 | */ | |
3492 | if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { | |
3493 | ioasc = 0; | |
3494 | ipr_trace; | |
3495 | } | |
3496 | ||
3497 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
ee0a90fa BK |
3498 | if (!ipr_is_naca_model(res)) |
3499 | res->needs_sync_complete = 1; | |
1da177e4 LT |
3500 | |
3501 | LEAVE; | |
3502 | return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS); | |
3503 | } | |
3504 | ||
3505 | /** | |
3506 | * ipr_eh_abort - Abort a single op | |
3507 | * @scsi_cmd: scsi command struct | |
3508 | * | |
3509 | * Return value: | |
3510 | * SUCCESS / FAILED | |
3511 | **/ | |
3512 | static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd) | |
3513 | { | |
8fa728a2 JG |
3514 | unsigned long flags; |
3515 | int rc; | |
1da177e4 LT |
3516 | |
3517 | ENTER; | |
1da177e4 | 3518 | |
8fa728a2 JG |
3519 | spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); |
3520 | rc = ipr_cancel_op(scsi_cmd); | |
3521 | spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags); | |
1da177e4 LT |
3522 | |
3523 | LEAVE; | |
8fa728a2 | 3524 | return rc; |
1da177e4 LT |
3525 | } |
3526 | ||
3527 | /** | |
3528 | * ipr_handle_other_interrupt - Handle "other" interrupts | |
3529 | * @ioa_cfg: ioa config struct | |
3530 | * @int_reg: interrupt register | |
3531 | * | |
3532 | * Return value: | |
3533 | * IRQ_NONE / IRQ_HANDLED | |
3534 | **/ | |
3535 | static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, | |
3536 | volatile u32 int_reg) | |
3537 | { | |
3538 | irqreturn_t rc = IRQ_HANDLED; | |
3539 | ||
3540 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { | |
3541 | /* Mask the interrupt */ | |
3542 | writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg); | |
3543 | ||
3544 | /* Clear the interrupt */ | |
3545 | writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg); | |
3546 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
3547 | ||
3548 | list_del(&ioa_cfg->reset_cmd->queue); | |
3549 | del_timer(&ioa_cfg->reset_cmd->timer); | |
3550 | ipr_reset_ioa_job(ioa_cfg->reset_cmd); | |
3551 | } else { | |
3552 | if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) | |
3553 | ioa_cfg->ioa_unit_checked = 1; | |
3554 | else | |
3555 | dev_err(&ioa_cfg->pdev->dev, | |
3556 | "Permanent IOA failure. 0x%08X\n", int_reg); | |
3557 | ||
3558 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
3559 | ioa_cfg->sdt_state = GET_DUMP; | |
3560 | ||
3561 | ipr_mask_and_clear_interrupts(ioa_cfg, ~0); | |
3562 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
3563 | } | |
3564 | ||
3565 | return rc; | |
3566 | } | |
3567 | ||
3568 | /** | |
3569 | * ipr_isr - Interrupt service routine | |
3570 | * @irq: irq number | |
3571 | * @devp: pointer to ioa config struct | |
3572 | * @regs: pt_regs struct | |
3573 | * | |
3574 | * Return value: | |
3575 | * IRQ_NONE / IRQ_HANDLED | |
3576 | **/ | |
3577 | static irqreturn_t ipr_isr(int irq, void *devp, struct pt_regs *regs) | |
3578 | { | |
3579 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; | |
3580 | unsigned long lock_flags = 0; | |
3581 | volatile u32 int_reg, int_mask_reg; | |
3582 | u32 ioasc; | |
3583 | u16 cmd_index; | |
3584 | struct ipr_cmnd *ipr_cmd; | |
3585 | irqreturn_t rc = IRQ_NONE; | |
3586 | ||
3587 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3588 | ||
3589 | /* If interrupts are disabled, ignore the interrupt */ | |
3590 | if (!ioa_cfg->allow_interrupts) { | |
3591 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3592 | return IRQ_NONE; | |
3593 | } | |
3594 | ||
3595 | int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
3596 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; | |
3597 | ||
3598 | /* If an interrupt on the adapter did not occur, ignore it */ | |
3599 | if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) { | |
3600 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3601 | return IRQ_NONE; | |
3602 | } | |
3603 | ||
3604 | while (1) { | |
3605 | ipr_cmd = NULL; | |
3606 | ||
3607 | while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == | |
3608 | ioa_cfg->toggle_bit) { | |
3609 | ||
3610 | cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) & | |
3611 | IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; | |
3612 | ||
3613 | if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) { | |
3614 | ioa_cfg->errors_logged++; | |
3615 | dev_err(&ioa_cfg->pdev->dev, "Invalid response handle from IOA\n"); | |
3616 | ||
3617 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
3618 | ioa_cfg->sdt_state = GET_DUMP; | |
3619 | ||
3620 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
3621 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3622 | return IRQ_HANDLED; | |
3623 | } | |
3624 | ||
3625 | ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; | |
3626 | ||
3627 | ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
3628 | ||
3629 | ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc); | |
3630 | ||
3631 | list_del(&ipr_cmd->queue); | |
3632 | del_timer(&ipr_cmd->timer); | |
3633 | ipr_cmd->done(ipr_cmd); | |
3634 | ||
3635 | rc = IRQ_HANDLED; | |
3636 | ||
3637 | if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) { | |
3638 | ioa_cfg->hrrq_curr++; | |
3639 | } else { | |
3640 | ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; | |
3641 | ioa_cfg->toggle_bit ^= 1u; | |
3642 | } | |
3643 | } | |
3644 | ||
3645 | if (ipr_cmd != NULL) { | |
3646 | /* Clear the PCI interrupt */ | |
3647 | writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg); | |
3648 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; | |
3649 | } else | |
3650 | break; | |
3651 | } | |
3652 | ||
3653 | if (unlikely(rc == IRQ_NONE)) | |
3654 | rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); | |
3655 | ||
3656 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3657 | return rc; | |
3658 | } | |
3659 | ||
3660 | /** | |
3661 | * ipr_build_ioadl - Build a scatter/gather list and map the buffer | |
3662 | * @ioa_cfg: ioa config struct | |
3663 | * @ipr_cmd: ipr command struct | |
3664 | * | |
3665 | * Return value: | |
3666 | * 0 on success / -1 on failure | |
3667 | **/ | |
3668 | static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, | |
3669 | struct ipr_cmnd *ipr_cmd) | |
3670 | { | |
3671 | int i; | |
3672 | struct scatterlist *sglist; | |
3673 | u32 length; | |
3674 | u32 ioadl_flags = 0; | |
3675 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
3676 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
3677 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
3678 | ||
3679 | length = scsi_cmd->request_bufflen; | |
3680 | ||
3681 | if (length == 0) | |
3682 | return 0; | |
3683 | ||
3684 | if (scsi_cmd->use_sg) { | |
3685 | ipr_cmd->dma_use_sg = pci_map_sg(ioa_cfg->pdev, | |
3686 | scsi_cmd->request_buffer, | |
3687 | scsi_cmd->use_sg, | |
3688 | scsi_cmd->sc_data_direction); | |
3689 | ||
3690 | if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { | |
3691 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; | |
3692 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
3693 | ioarcb->write_data_transfer_length = cpu_to_be32(length); | |
3694 | ioarcb->write_ioadl_len = | |
3695 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
3696 | } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
3697 | ioadl_flags = IPR_IOADL_FLAGS_READ; | |
3698 | ioarcb->read_data_transfer_length = cpu_to_be32(length); | |
3699 | ioarcb->read_ioadl_len = | |
3700 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
3701 | } | |
3702 | ||
3703 | sglist = scsi_cmd->request_buffer; | |
3704 | ||
3705 | for (i = 0; i < ipr_cmd->dma_use_sg; i++) { | |
3706 | ioadl[i].flags_and_data_len = | |
3707 | cpu_to_be32(ioadl_flags | sg_dma_len(&sglist[i])); | |
3708 | ioadl[i].address = | |
3709 | cpu_to_be32(sg_dma_address(&sglist[i])); | |
3710 | } | |
3711 | ||
3712 | if (likely(ipr_cmd->dma_use_sg)) { | |
3713 | ioadl[i-1].flags_and_data_len |= | |
3714 | cpu_to_be32(IPR_IOADL_FLAGS_LAST); | |
3715 | return 0; | |
3716 | } else | |
3717 | dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); | |
3718 | } else { | |
3719 | if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { | |
3720 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; | |
3721 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
3722 | ioarcb->write_data_transfer_length = cpu_to_be32(length); | |
3723 | ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
3724 | } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
3725 | ioadl_flags = IPR_IOADL_FLAGS_READ; | |
3726 | ioarcb->read_data_transfer_length = cpu_to_be32(length); | |
3727 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
3728 | } | |
3729 | ||
3730 | ipr_cmd->dma_handle = pci_map_single(ioa_cfg->pdev, | |
3731 | scsi_cmd->request_buffer, length, | |
3732 | scsi_cmd->sc_data_direction); | |
3733 | ||
3734 | if (likely(!pci_dma_mapping_error(ipr_cmd->dma_handle))) { | |
3735 | ipr_cmd->dma_use_sg = 1; | |
3736 | ioadl[0].flags_and_data_len = | |
3737 | cpu_to_be32(ioadl_flags | length | IPR_IOADL_FLAGS_LAST); | |
3738 | ioadl[0].address = cpu_to_be32(ipr_cmd->dma_handle); | |
3739 | return 0; | |
3740 | } else | |
3741 | dev_err(&ioa_cfg->pdev->dev, "pci_map_single failed!\n"); | |
3742 | } | |
3743 | ||
3744 | return -1; | |
3745 | } | |
3746 | ||
3747 | /** | |
3748 | * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes | |
3749 | * @scsi_cmd: scsi command struct | |
3750 | * | |
3751 | * Return value: | |
3752 | * task attributes | |
3753 | **/ | |
3754 | static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd) | |
3755 | { | |
3756 | u8 tag[2]; | |
3757 | u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK; | |
3758 | ||
3759 | if (scsi_populate_tag_msg(scsi_cmd, tag)) { | |
3760 | switch (tag[0]) { | |
3761 | case MSG_SIMPLE_TAG: | |
3762 | rc = IPR_FLAGS_LO_SIMPLE_TASK; | |
3763 | break; | |
3764 | case MSG_HEAD_TAG: | |
3765 | rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK; | |
3766 | break; | |
3767 | case MSG_ORDERED_TAG: | |
3768 | rc = IPR_FLAGS_LO_ORDERED_TASK; | |
3769 | break; | |
3770 | }; | |
3771 | } | |
3772 | ||
3773 | return rc; | |
3774 | } | |
3775 | ||
3776 | /** | |
3777 | * ipr_erp_done - Process completion of ERP for a device | |
3778 | * @ipr_cmd: ipr command struct | |
3779 | * | |
3780 | * This function copies the sense buffer into the scsi_cmd | |
3781 | * struct and pushes the scsi_done function. | |
3782 | * | |
3783 | * Return value: | |
3784 | * nothing | |
3785 | **/ | |
3786 | static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) | |
3787 | { | |
3788 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
3789 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; | |
3790 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
3791 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
3792 | ||
3793 | if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { | |
3794 | scsi_cmd->result |= (DID_ERROR << 16); | |
3795 | ipr_sdev_err(scsi_cmd->device, | |
3796 | "Request Sense failed with IOASC: 0x%08X\n", ioasc); | |
3797 | } else { | |
3798 | memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, | |
3799 | SCSI_SENSE_BUFFERSIZE); | |
3800 | } | |
3801 | ||
3802 | if (res) { | |
ee0a90fa BK |
3803 | if (!ipr_is_naca_model(res)) |
3804 | res->needs_sync_complete = 1; | |
1da177e4 LT |
3805 | res->in_erp = 0; |
3806 | } | |
3807 | ipr_unmap_sglist(ioa_cfg, ipr_cmd); | |
3808 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
3809 | scsi_cmd->scsi_done(scsi_cmd); | |
3810 | } | |
3811 | ||
3812 | /** | |
3813 | * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP | |
3814 | * @ipr_cmd: ipr command struct | |
3815 | * | |
3816 | * Return value: | |
3817 | * none | |
3818 | **/ | |
3819 | static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) | |
3820 | { | |
3821 | struct ipr_ioarcb *ioarcb; | |
3822 | struct ipr_ioasa *ioasa; | |
3823 | ||
3824 | ioarcb = &ipr_cmd->ioarcb; | |
3825 | ioasa = &ipr_cmd->ioasa; | |
3826 | ||
3827 | memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); | |
3828 | ioarcb->write_data_transfer_length = 0; | |
3829 | ioarcb->read_data_transfer_length = 0; | |
3830 | ioarcb->write_ioadl_len = 0; | |
3831 | ioarcb->read_ioadl_len = 0; | |
3832 | ioasa->ioasc = 0; | |
3833 | ioasa->residual_data_len = 0; | |
3834 | } | |
3835 | ||
3836 | /** | |
3837 | * ipr_erp_request_sense - Send request sense to a device | |
3838 | * @ipr_cmd: ipr command struct | |
3839 | * | |
3840 | * This function sends a request sense to a device as a result | |
3841 | * of a check condition. | |
3842 | * | |
3843 | * Return value: | |
3844 | * nothing | |
3845 | **/ | |
3846 | static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) | |
3847 | { | |
3848 | struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; | |
3849 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
3850 | ||
3851 | if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { | |
3852 | ipr_erp_done(ipr_cmd); | |
3853 | return; | |
3854 | } | |
3855 | ||
3856 | ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); | |
3857 | ||
3858 | cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; | |
3859 | cmd_pkt->cdb[0] = REQUEST_SENSE; | |
3860 | cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; | |
3861 | cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; | |
3862 | cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; | |
3863 | cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); | |
3864 | ||
3865 | ipr_cmd->ioadl[0].flags_and_data_len = | |
3866 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | SCSI_SENSE_BUFFERSIZE); | |
3867 | ipr_cmd->ioadl[0].address = | |
3868 | cpu_to_be32(ipr_cmd->sense_buffer_dma); | |
3869 | ||
3870 | ipr_cmd->ioarcb.read_ioadl_len = | |
3871 | cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
3872 | ipr_cmd->ioarcb.read_data_transfer_length = | |
3873 | cpu_to_be32(SCSI_SENSE_BUFFERSIZE); | |
3874 | ||
3875 | ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout, | |
3876 | IPR_REQUEST_SENSE_TIMEOUT * 2); | |
3877 | } | |
3878 | ||
3879 | /** | |
3880 | * ipr_erp_cancel_all - Send cancel all to a device | |
3881 | * @ipr_cmd: ipr command struct | |
3882 | * | |
3883 | * This function sends a cancel all to a device to clear the | |
3884 | * queue. If we are running TCQ on the device, QERR is set to 1, | |
3885 | * which means all outstanding ops have been dropped on the floor. | |
3886 | * Cancel all will return them to us. | |
3887 | * | |
3888 | * Return value: | |
3889 | * nothing | |
3890 | **/ | |
3891 | static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) | |
3892 | { | |
3893 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
3894 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; | |
3895 | struct ipr_cmd_pkt *cmd_pkt; | |
3896 | ||
3897 | res->in_erp = 1; | |
3898 | ||
3899 | ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); | |
3900 | ||
3901 | if (!scsi_get_tag_type(scsi_cmd->device)) { | |
3902 | ipr_erp_request_sense(ipr_cmd); | |
3903 | return; | |
3904 | } | |
3905 | ||
3906 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; | |
3907 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
3908 | cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; | |
3909 | ||
3910 | ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout, | |
3911 | IPR_CANCEL_ALL_TIMEOUT); | |
3912 | } | |
3913 | ||
3914 | /** | |
3915 | * ipr_dump_ioasa - Dump contents of IOASA | |
3916 | * @ioa_cfg: ioa config struct | |
3917 | * @ipr_cmd: ipr command struct | |
fe964d0a | 3918 | * @res: resource entry struct |
1da177e4 LT |
3919 | * |
3920 | * This function is invoked by the interrupt handler when ops | |
3921 | * fail. It will log the IOASA if appropriate. Only called | |
3922 | * for GPDD ops. | |
3923 | * | |
3924 | * Return value: | |
3925 | * none | |
3926 | **/ | |
3927 | static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, | |
fe964d0a | 3928 | struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res) |
1da177e4 LT |
3929 | { |
3930 | int i; | |
3931 | u16 data_len; | |
3932 | u32 ioasc; | |
3933 | struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; | |
3934 | __be32 *ioasa_data = (__be32 *)ioasa; | |
3935 | int error_index; | |
3936 | ||
3937 | ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK; | |
3938 | ||
3939 | if (0 == ioasc) | |
3940 | return; | |
3941 | ||
3942 | if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) | |
3943 | return; | |
3944 | ||
3945 | error_index = ipr_get_error(ioasc); | |
3946 | ||
3947 | if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { | |
3948 | /* Don't log an error if the IOA already logged one */ | |
3949 | if (ioasa->ilid != 0) | |
3950 | return; | |
3951 | ||
3952 | if (ipr_error_table[error_index].log_ioasa == 0) | |
3953 | return; | |
3954 | } | |
3955 | ||
fe964d0a | 3956 | ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error); |
1da177e4 LT |
3957 | |
3958 | if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len)) | |
3959 | data_len = sizeof(struct ipr_ioasa); | |
3960 | else | |
3961 | data_len = be16_to_cpu(ioasa->ret_stat_len); | |
3962 | ||
3963 | ipr_err("IOASA Dump:\n"); | |
3964 | ||
3965 | for (i = 0; i < data_len / 4; i += 4) { | |
3966 | ipr_err("%08X: %08X %08X %08X %08X\n", i*4, | |
3967 | be32_to_cpu(ioasa_data[i]), | |
3968 | be32_to_cpu(ioasa_data[i+1]), | |
3969 | be32_to_cpu(ioasa_data[i+2]), | |
3970 | be32_to_cpu(ioasa_data[i+3])); | |
3971 | } | |
3972 | } | |
3973 | ||
3974 | /** | |
3975 | * ipr_gen_sense - Generate SCSI sense data from an IOASA | |
3976 | * @ioasa: IOASA | |
3977 | * @sense_buf: sense data buffer | |
3978 | * | |
3979 | * Return value: | |
3980 | * none | |
3981 | **/ | |
3982 | static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) | |
3983 | { | |
3984 | u32 failing_lba; | |
3985 | u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; | |
3986 | struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; | |
3987 | struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; | |
3988 | u32 ioasc = be32_to_cpu(ioasa->ioasc); | |
3989 | ||
3990 | memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); | |
3991 | ||
3992 | if (ioasc >= IPR_FIRST_DRIVER_IOASC) | |
3993 | return; | |
3994 | ||
3995 | ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; | |
3996 | ||
3997 | if (ipr_is_vset_device(res) && | |
3998 | ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && | |
3999 | ioasa->u.vset.failing_lba_hi != 0) { | |
4000 | sense_buf[0] = 0x72; | |
4001 | sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); | |
4002 | sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); | |
4003 | sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); | |
4004 | ||
4005 | sense_buf[7] = 12; | |
4006 | sense_buf[8] = 0; | |
4007 | sense_buf[9] = 0x0A; | |
4008 | sense_buf[10] = 0x80; | |
4009 | ||
4010 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); | |
4011 | ||
4012 | sense_buf[12] = (failing_lba & 0xff000000) >> 24; | |
4013 | sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; | |
4014 | sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; | |
4015 | sense_buf[15] = failing_lba & 0x000000ff; | |
4016 | ||
4017 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); | |
4018 | ||
4019 | sense_buf[16] = (failing_lba & 0xff000000) >> 24; | |
4020 | sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; | |
4021 | sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; | |
4022 | sense_buf[19] = failing_lba & 0x000000ff; | |
4023 | } else { | |
4024 | sense_buf[0] = 0x70; | |
4025 | sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); | |
4026 | sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); | |
4027 | sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); | |
4028 | ||
4029 | /* Illegal request */ | |
4030 | if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && | |
4031 | (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) { | |
4032 | sense_buf[7] = 10; /* additional length */ | |
4033 | ||
4034 | /* IOARCB was in error */ | |
4035 | if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) | |
4036 | sense_buf[15] = 0xC0; | |
4037 | else /* Parameter data was invalid */ | |
4038 | sense_buf[15] = 0x80; | |
4039 | ||
4040 | sense_buf[16] = | |
4041 | ((IPR_FIELD_POINTER_MASK & | |
4042 | be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff; | |
4043 | sense_buf[17] = | |
4044 | (IPR_FIELD_POINTER_MASK & | |
4045 | be32_to_cpu(ioasa->ioasc_specific)) & 0xff; | |
4046 | } else { | |
4047 | if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { | |
4048 | if (ipr_is_vset_device(res)) | |
4049 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); | |
4050 | else | |
4051 | failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); | |
4052 | ||
4053 | sense_buf[0] |= 0x80; /* Or in the Valid bit */ | |
4054 | sense_buf[3] = (failing_lba & 0xff000000) >> 24; | |
4055 | sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; | |
4056 | sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; | |
4057 | sense_buf[6] = failing_lba & 0x000000ff; | |
4058 | } | |
4059 | ||
4060 | sense_buf[7] = 6; /* additional length */ | |
4061 | } | |
4062 | } | |
4063 | } | |
4064 | ||
ee0a90fa BK |
4065 | /** |
4066 | * ipr_get_autosense - Copy autosense data to sense buffer | |
4067 | * @ipr_cmd: ipr command struct | |
4068 | * | |
4069 | * This function copies the autosense buffer to the buffer | |
4070 | * in the scsi_cmd, if there is autosense available. | |
4071 | * | |
4072 | * Return value: | |
4073 | * 1 if autosense was available / 0 if not | |
4074 | **/ | |
4075 | static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd) | |
4076 | { | |
4077 | struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; | |
4078 | ||
4079 | if ((be32_to_cpu(ioasa->ioasc_specific) & | |
4080 | (IPR_ADDITIONAL_STATUS_FMT | IPR_AUTOSENSE_VALID)) == 0) | |
4081 | return 0; | |
4082 | ||
4083 | memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data, | |
4084 | min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len), | |
4085 | SCSI_SENSE_BUFFERSIZE)); | |
4086 | return 1; | |
4087 | } | |
4088 | ||
1da177e4 LT |
4089 | /** |
4090 | * ipr_erp_start - Process an error response for a SCSI op | |
4091 | * @ioa_cfg: ioa config struct | |
4092 | * @ipr_cmd: ipr command struct | |
4093 | * | |
4094 | * This function determines whether or not to initiate ERP | |
4095 | * on the affected device. | |
4096 | * | |
4097 | * Return value: | |
4098 | * nothing | |
4099 | **/ | |
4100 | static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, | |
4101 | struct ipr_cmnd *ipr_cmd) | |
4102 | { | |
4103 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
4104 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; | |
4105 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
4106 | ||
4107 | if (!res) { | |
4108 | ipr_scsi_eh_done(ipr_cmd); | |
4109 | return; | |
4110 | } | |
4111 | ||
4112 | if (ipr_is_gscsi(res)) | |
fe964d0a | 4113 | ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); |
1da177e4 LT |
4114 | else |
4115 | ipr_gen_sense(ipr_cmd); | |
4116 | ||
4117 | switch (ioasc & IPR_IOASC_IOASC_MASK) { | |
4118 | case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: | |
ee0a90fa BK |
4119 | if (ipr_is_naca_model(res)) |
4120 | scsi_cmd->result |= (DID_ABORT << 16); | |
4121 | else | |
4122 | scsi_cmd->result |= (DID_IMM_RETRY << 16); | |
1da177e4 LT |
4123 | break; |
4124 | case IPR_IOASC_IR_RESOURCE_HANDLE: | |
b0df54bb | 4125 | case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: |
1da177e4 LT |
4126 | scsi_cmd->result |= (DID_NO_CONNECT << 16); |
4127 | break; | |
4128 | case IPR_IOASC_HW_SEL_TIMEOUT: | |
4129 | scsi_cmd->result |= (DID_NO_CONNECT << 16); | |
ee0a90fa BK |
4130 | if (!ipr_is_naca_model(res)) |
4131 | res->needs_sync_complete = 1; | |
1da177e4 LT |
4132 | break; |
4133 | case IPR_IOASC_SYNC_REQUIRED: | |
4134 | if (!res->in_erp) | |
4135 | res->needs_sync_complete = 1; | |
4136 | scsi_cmd->result |= (DID_IMM_RETRY << 16); | |
4137 | break; | |
4138 | case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ | |
b0df54bb | 4139 | case IPR_IOASA_IR_DUAL_IOA_DISABLED: |
1da177e4 LT |
4140 | scsi_cmd->result |= (DID_PASSTHROUGH << 16); |
4141 | break; | |
4142 | case IPR_IOASC_BUS_WAS_RESET: | |
4143 | case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: | |
4144 | /* | |
4145 | * Report the bus reset and ask for a retry. The device | |
4146 | * will give CC/UA the next command. | |
4147 | */ | |
4148 | if (!res->resetting_device) | |
4149 | scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); | |
4150 | scsi_cmd->result |= (DID_ERROR << 16); | |
ee0a90fa BK |
4151 | if (!ipr_is_naca_model(res)) |
4152 | res->needs_sync_complete = 1; | |
1da177e4 LT |
4153 | break; |
4154 | case IPR_IOASC_HW_DEV_BUS_STATUS: | |
4155 | scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); | |
4156 | if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { | |
ee0a90fa BK |
4157 | if (!ipr_get_autosense(ipr_cmd)) { |
4158 | if (!ipr_is_naca_model(res)) { | |
4159 | ipr_erp_cancel_all(ipr_cmd); | |
4160 | return; | |
4161 | } | |
4162 | } | |
1da177e4 | 4163 | } |
ee0a90fa BK |
4164 | if (!ipr_is_naca_model(res)) |
4165 | res->needs_sync_complete = 1; | |
1da177e4 LT |
4166 | break; |
4167 | case IPR_IOASC_NR_INIT_CMD_REQUIRED: | |
4168 | break; | |
4169 | default: | |
4170 | scsi_cmd->result |= (DID_ERROR << 16); | |
ee0a90fa | 4171 | if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res)) |
1da177e4 LT |
4172 | res->needs_sync_complete = 1; |
4173 | break; | |
4174 | } | |
4175 | ||
4176 | ipr_unmap_sglist(ioa_cfg, ipr_cmd); | |
4177 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4178 | scsi_cmd->scsi_done(scsi_cmd); | |
4179 | } | |
4180 | ||
4181 | /** | |
4182 | * ipr_scsi_done - mid-layer done function | |
4183 | * @ipr_cmd: ipr command struct | |
4184 | * | |
4185 | * This function is invoked by the interrupt handler for | |
4186 | * ops generated by the SCSI mid-layer | |
4187 | * | |
4188 | * Return value: | |
4189 | * none | |
4190 | **/ | |
4191 | static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) | |
4192 | { | |
4193 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4194 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
4195 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
4196 | ||
4197 | scsi_cmd->resid = be32_to_cpu(ipr_cmd->ioasa.residual_data_len); | |
4198 | ||
4199 | if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { | |
4200 | ipr_unmap_sglist(ioa_cfg, ipr_cmd); | |
4201 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4202 | scsi_cmd->scsi_done(scsi_cmd); | |
4203 | } else | |
4204 | ipr_erp_start(ioa_cfg, ipr_cmd); | |
4205 | } | |
4206 | ||
1da177e4 LT |
4207 | /** |
4208 | * ipr_queuecommand - Queue a mid-layer request | |
4209 | * @scsi_cmd: scsi command struct | |
4210 | * @done: done function | |
4211 | * | |
4212 | * This function queues a request generated by the mid-layer. | |
4213 | * | |
4214 | * Return value: | |
4215 | * 0 on success | |
4216 | * SCSI_MLQUEUE_DEVICE_BUSY if device is busy | |
4217 | * SCSI_MLQUEUE_HOST_BUSY if host is busy | |
4218 | **/ | |
4219 | static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd, | |
4220 | void (*done) (struct scsi_cmnd *)) | |
4221 | { | |
4222 | struct ipr_ioa_cfg *ioa_cfg; | |
4223 | struct ipr_resource_entry *res; | |
4224 | struct ipr_ioarcb *ioarcb; | |
4225 | struct ipr_cmnd *ipr_cmd; | |
4226 | int rc = 0; | |
4227 | ||
4228 | scsi_cmd->scsi_done = done; | |
4229 | ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; | |
4230 | res = scsi_cmd->device->hostdata; | |
4231 | scsi_cmd->result = (DID_OK << 16); | |
4232 | ||
4233 | /* | |
4234 | * We are currently blocking all devices due to a host reset | |
4235 | * We have told the host to stop giving us new requests, but | |
4236 | * ERP ops don't count. FIXME | |
4237 | */ | |
4238 | if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead)) | |
4239 | return SCSI_MLQUEUE_HOST_BUSY; | |
4240 | ||
4241 | /* | |
4242 | * FIXME - Create scsi_set_host_offline interface | |
4243 | * and the ioa_is_dead check can be removed | |
4244 | */ | |
4245 | if (unlikely(ioa_cfg->ioa_is_dead || !res)) { | |
4246 | memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); | |
4247 | scsi_cmd->result = (DID_NO_CONNECT << 16); | |
4248 | scsi_cmd->scsi_done(scsi_cmd); | |
4249 | return 0; | |
4250 | } | |
4251 | ||
4252 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
4253 | ioarcb = &ipr_cmd->ioarcb; | |
4254 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
4255 | ||
4256 | memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); | |
4257 | ipr_cmd->scsi_cmd = scsi_cmd; | |
4258 | ioarcb->res_handle = res->cfgte.res_handle; | |
4259 | ipr_cmd->done = ipr_scsi_done; | |
4260 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr)); | |
4261 | ||
4262 | if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { | |
4263 | if (scsi_cmd->underflow == 0) | |
4264 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; | |
4265 | ||
4266 | if (res->needs_sync_complete) { | |
4267 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; | |
4268 | res->needs_sync_complete = 0; | |
4269 | } | |
4270 | ||
4271 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; | |
4272 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; | |
4273 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; | |
4274 | ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd); | |
4275 | } | |
4276 | ||
4277 | if (scsi_cmd->cmnd[0] >= 0xC0 && | |
4278 | (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) | |
4279 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
4280 | ||
1da177e4 LT |
4281 | if (likely(rc == 0)) |
4282 | rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); | |
4283 | ||
4284 | if (likely(rc == 0)) { | |
4285 | mb(); | |
4286 | writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), | |
4287 | ioa_cfg->regs.ioarrin_reg); | |
4288 | } else { | |
4289 | list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4290 | return SCSI_MLQUEUE_HOST_BUSY; | |
4291 | } | |
4292 | ||
4293 | return 0; | |
4294 | } | |
4295 | ||
4296 | /** | |
4297 | * ipr_info - Get information about the card/driver | |
4298 | * @scsi_host: scsi host struct | |
4299 | * | |
4300 | * Return value: | |
4301 | * pointer to buffer with description string | |
4302 | **/ | |
4303 | static const char * ipr_ioa_info(struct Scsi_Host *host) | |
4304 | { | |
4305 | static char buffer[512]; | |
4306 | struct ipr_ioa_cfg *ioa_cfg; | |
4307 | unsigned long lock_flags = 0; | |
4308 | ||
4309 | ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; | |
4310 | ||
4311 | spin_lock_irqsave(host->host_lock, lock_flags); | |
4312 | sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type); | |
4313 | spin_unlock_irqrestore(host->host_lock, lock_flags); | |
4314 | ||
4315 | return buffer; | |
4316 | } | |
4317 | ||
4318 | static struct scsi_host_template driver_template = { | |
4319 | .module = THIS_MODULE, | |
4320 | .name = "IPR", | |
4321 | .info = ipr_ioa_info, | |
4322 | .queuecommand = ipr_queuecommand, | |
4323 | .eh_abort_handler = ipr_eh_abort, | |
4324 | .eh_device_reset_handler = ipr_eh_dev_reset, | |
4325 | .eh_host_reset_handler = ipr_eh_host_reset, | |
4326 | .slave_alloc = ipr_slave_alloc, | |
4327 | .slave_configure = ipr_slave_configure, | |
4328 | .slave_destroy = ipr_slave_destroy, | |
4329 | .change_queue_depth = ipr_change_queue_depth, | |
4330 | .change_queue_type = ipr_change_queue_type, | |
4331 | .bios_param = ipr_biosparam, | |
4332 | .can_queue = IPR_MAX_COMMANDS, | |
4333 | .this_id = -1, | |
4334 | .sg_tablesize = IPR_MAX_SGLIST, | |
4335 | .max_sectors = IPR_IOA_MAX_SECTORS, | |
4336 | .cmd_per_lun = IPR_MAX_CMD_PER_LUN, | |
4337 | .use_clustering = ENABLE_CLUSTERING, | |
4338 | .shost_attrs = ipr_ioa_attrs, | |
4339 | .sdev_attrs = ipr_dev_attrs, | |
4340 | .proc_name = IPR_NAME | |
4341 | }; | |
4342 | ||
4343 | #ifdef CONFIG_PPC_PSERIES | |
4344 | static const u16 ipr_blocked_processors[] = { | |
4345 | PV_NORTHSTAR, | |
4346 | PV_PULSAR, | |
4347 | PV_POWER4, | |
4348 | PV_ICESTAR, | |
4349 | PV_SSTAR, | |
4350 | PV_POWER4p, | |
4351 | PV_630, | |
4352 | PV_630p | |
4353 | }; | |
4354 | ||
4355 | /** | |
4356 | * ipr_invalid_adapter - Determine if this adapter is supported on this hardware | |
4357 | * @ioa_cfg: ioa cfg struct | |
4358 | * | |
4359 | * Adapters that use Gemstone revision < 3.1 do not work reliably on | |
4360 | * certain pSeries hardware. This function determines if the given | |
4361 | * adapter is in one of these confgurations or not. | |
4362 | * | |
4363 | * Return value: | |
4364 | * 1 if adapter is not supported / 0 if adapter is supported | |
4365 | **/ | |
4366 | static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) | |
4367 | { | |
4368 | u8 rev_id; | |
4369 | int i; | |
4370 | ||
4371 | if (ioa_cfg->type == 0x5702) { | |
4372 | if (pci_read_config_byte(ioa_cfg->pdev, PCI_REVISION_ID, | |
4373 | &rev_id) == PCIBIOS_SUCCESSFUL) { | |
4374 | if (rev_id < 4) { | |
4375 | for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){ | |
4376 | if (__is_processor(ipr_blocked_processors[i])) | |
4377 | return 1; | |
4378 | } | |
4379 | } | |
4380 | } | |
4381 | } | |
4382 | return 0; | |
4383 | } | |
4384 | #else | |
4385 | #define ipr_invalid_adapter(ioa_cfg) 0 | |
4386 | #endif | |
4387 | ||
4388 | /** | |
4389 | * ipr_ioa_bringdown_done - IOA bring down completion. | |
4390 | * @ipr_cmd: ipr command struct | |
4391 | * | |
4392 | * This function processes the completion of an adapter bring down. | |
4393 | * It wakes any reset sleepers. | |
4394 | * | |
4395 | * Return value: | |
4396 | * IPR_RC_JOB_RETURN | |
4397 | **/ | |
4398 | static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) | |
4399 | { | |
4400 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4401 | ||
4402 | ENTER; | |
4403 | ioa_cfg->in_reset_reload = 0; | |
4404 | ioa_cfg->reset_retries = 0; | |
4405 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4406 | wake_up_all(&ioa_cfg->reset_wait_q); | |
4407 | ||
4408 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
4409 | scsi_unblock_requests(ioa_cfg->host); | |
4410 | spin_lock_irq(ioa_cfg->host->host_lock); | |
4411 | LEAVE; | |
4412 | ||
4413 | return IPR_RC_JOB_RETURN; | |
4414 | } | |
4415 | ||
4416 | /** | |
4417 | * ipr_ioa_reset_done - IOA reset completion. | |
4418 | * @ipr_cmd: ipr command struct | |
4419 | * | |
4420 | * This function processes the completion of an adapter reset. | |
4421 | * It schedules any necessary mid-layer add/removes and | |
4422 | * wakes any reset sleepers. | |
4423 | * | |
4424 | * Return value: | |
4425 | * IPR_RC_JOB_RETURN | |
4426 | **/ | |
4427 | static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) | |
4428 | { | |
4429 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4430 | struct ipr_resource_entry *res; | |
4431 | struct ipr_hostrcb *hostrcb, *temp; | |
4432 | int i = 0; | |
4433 | ||
4434 | ENTER; | |
4435 | ioa_cfg->in_reset_reload = 0; | |
4436 | ioa_cfg->allow_cmds = 1; | |
4437 | ioa_cfg->reset_cmd = NULL; | |
3d1d0da6 | 4438 | ioa_cfg->doorbell |= IPR_RUNTIME_RESET; |
1da177e4 LT |
4439 | |
4440 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
4441 | if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) { | |
4442 | ipr_trace; | |
4443 | break; | |
4444 | } | |
4445 | } | |
4446 | schedule_work(&ioa_cfg->work_q); | |
4447 | ||
4448 | list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) { | |
4449 | list_del(&hostrcb->queue); | |
4450 | if (i++ < IPR_NUM_LOG_HCAMS) | |
4451 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); | |
4452 | else | |
4453 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); | |
4454 | } | |
4455 | ||
4456 | dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n"); | |
4457 | ||
4458 | ioa_cfg->reset_retries = 0; | |
4459 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4460 | wake_up_all(&ioa_cfg->reset_wait_q); | |
4461 | ||
4462 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
4463 | scsi_unblock_requests(ioa_cfg->host); | |
4464 | spin_lock_irq(ioa_cfg->host->host_lock); | |
4465 | ||
4466 | if (!ioa_cfg->allow_cmds) | |
4467 | scsi_block_requests(ioa_cfg->host); | |
4468 | ||
4469 | LEAVE; | |
4470 | return IPR_RC_JOB_RETURN; | |
4471 | } | |
4472 | ||
4473 | /** | |
4474 | * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer | |
4475 | * @supported_dev: supported device struct | |
4476 | * @vpids: vendor product id struct | |
4477 | * | |
4478 | * Return value: | |
4479 | * none | |
4480 | **/ | |
4481 | static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, | |
4482 | struct ipr_std_inq_vpids *vpids) | |
4483 | { | |
4484 | memset(supported_dev, 0, sizeof(struct ipr_supported_device)); | |
4485 | memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); | |
4486 | supported_dev->num_records = 1; | |
4487 | supported_dev->data_length = | |
4488 | cpu_to_be16(sizeof(struct ipr_supported_device)); | |
4489 | supported_dev->reserved = 0; | |
4490 | } | |
4491 | ||
4492 | /** | |
4493 | * ipr_set_supported_devs - Send Set Supported Devices for a device | |
4494 | * @ipr_cmd: ipr command struct | |
4495 | * | |
4496 | * This function send a Set Supported Devices to the adapter | |
4497 | * | |
4498 | * Return value: | |
4499 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
4500 | **/ | |
4501 | static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) | |
4502 | { | |
4503 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4504 | struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; | |
4505 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
4506 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
4507 | struct ipr_resource_entry *res = ipr_cmd->u.res; | |
4508 | ||
4509 | ipr_cmd->job_step = ipr_ioa_reset_done; | |
4510 | ||
4511 | list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { | |
e4fbf44e | 4512 | if (!ipr_is_scsi_disk(res)) |
1da177e4 LT |
4513 | continue; |
4514 | ||
4515 | ipr_cmd->u.res = res; | |
4516 | ipr_set_sup_dev_dflt(supp_dev, &res->cfgte.std_inq_data.vpids); | |
4517 | ||
4518 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
4519 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
4520 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
4521 | ||
4522 | ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; | |
4523 | ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; | |
4524 | ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; | |
4525 | ||
4526 | ioadl->flags_and_data_len = cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | | |
4527 | sizeof(struct ipr_supported_device)); | |
4528 | ioadl->address = cpu_to_be32(ioa_cfg->vpd_cbs_dma + | |
4529 | offsetof(struct ipr_misc_cbs, supp_dev)); | |
4530 | ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
4531 | ioarcb->write_data_transfer_length = | |
4532 | cpu_to_be32(sizeof(struct ipr_supported_device)); | |
4533 | ||
4534 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, | |
4535 | IPR_SET_SUP_DEVICE_TIMEOUT); | |
4536 | ||
4537 | ipr_cmd->job_step = ipr_set_supported_devs; | |
4538 | return IPR_RC_JOB_RETURN; | |
4539 | } | |
4540 | ||
4541 | return IPR_RC_JOB_CONTINUE; | |
4542 | } | |
4543 | ||
62275040 BK |
4544 | /** |
4545 | * ipr_setup_write_cache - Disable write cache if needed | |
4546 | * @ipr_cmd: ipr command struct | |
4547 | * | |
4548 | * This function sets up adapters write cache to desired setting | |
4549 | * | |
4550 | * Return value: | |
4551 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
4552 | **/ | |
4553 | static int ipr_setup_write_cache(struct ipr_cmnd *ipr_cmd) | |
4554 | { | |
4555 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4556 | ||
4557 | ipr_cmd->job_step = ipr_set_supported_devs; | |
4558 | ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, | |
4559 | struct ipr_resource_entry, queue); | |
4560 | ||
4561 | if (ioa_cfg->cache_state != CACHE_DISABLED) | |
4562 | return IPR_RC_JOB_CONTINUE; | |
4563 | ||
4564 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
4565 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
4566 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; | |
4567 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; | |
4568 | ||
4569 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
4570 | ||
4571 | return IPR_RC_JOB_RETURN; | |
4572 | } | |
4573 | ||
1da177e4 LT |
4574 | /** |
4575 | * ipr_get_mode_page - Locate specified mode page | |
4576 | * @mode_pages: mode page buffer | |
4577 | * @page_code: page code to find | |
4578 | * @len: minimum required length for mode page | |
4579 | * | |
4580 | * Return value: | |
4581 | * pointer to mode page / NULL on failure | |
4582 | **/ | |
4583 | static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, | |
4584 | u32 page_code, u32 len) | |
4585 | { | |
4586 | struct ipr_mode_page_hdr *mode_hdr; | |
4587 | u32 page_length; | |
4588 | u32 length; | |
4589 | ||
4590 | if (!mode_pages || (mode_pages->hdr.length == 0)) | |
4591 | return NULL; | |
4592 | ||
4593 | length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; | |
4594 | mode_hdr = (struct ipr_mode_page_hdr *) | |
4595 | (mode_pages->data + mode_pages->hdr.block_desc_len); | |
4596 | ||
4597 | while (length) { | |
4598 | if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { | |
4599 | if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) | |
4600 | return mode_hdr; | |
4601 | break; | |
4602 | } else { | |
4603 | page_length = (sizeof(struct ipr_mode_page_hdr) + | |
4604 | mode_hdr->page_length); | |
4605 | length -= page_length; | |
4606 | mode_hdr = (struct ipr_mode_page_hdr *) | |
4607 | ((unsigned long)mode_hdr + page_length); | |
4608 | } | |
4609 | } | |
4610 | return NULL; | |
4611 | } | |
4612 | ||
4613 | /** | |
4614 | * ipr_check_term_power - Check for term power errors | |
4615 | * @ioa_cfg: ioa config struct | |
4616 | * @mode_pages: IOAFP mode pages buffer | |
4617 | * | |
4618 | * Check the IOAFP's mode page 28 for term power errors | |
4619 | * | |
4620 | * Return value: | |
4621 | * nothing | |
4622 | **/ | |
4623 | static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, | |
4624 | struct ipr_mode_pages *mode_pages) | |
4625 | { | |
4626 | int i; | |
4627 | int entry_length; | |
4628 | struct ipr_dev_bus_entry *bus; | |
4629 | struct ipr_mode_page28 *mode_page; | |
4630 | ||
4631 | mode_page = ipr_get_mode_page(mode_pages, 0x28, | |
4632 | sizeof(struct ipr_mode_page28)); | |
4633 | ||
4634 | entry_length = mode_page->entry_length; | |
4635 | ||
4636 | bus = mode_page->bus; | |
4637 | ||
4638 | for (i = 0; i < mode_page->num_entries; i++) { | |
4639 | if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { | |
4640 | dev_err(&ioa_cfg->pdev->dev, | |
4641 | "Term power is absent on scsi bus %d\n", | |
4642 | bus->res_addr.bus); | |
4643 | } | |
4644 | ||
4645 | bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); | |
4646 | } | |
4647 | } | |
4648 | ||
4649 | /** | |
4650 | * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table | |
4651 | * @ioa_cfg: ioa config struct | |
4652 | * | |
4653 | * Looks through the config table checking for SES devices. If | |
4654 | * the SES device is in the SES table indicating a maximum SCSI | |
4655 | * bus speed, the speed is limited for the bus. | |
4656 | * | |
4657 | * Return value: | |
4658 | * none | |
4659 | **/ | |
4660 | static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) | |
4661 | { | |
4662 | u32 max_xfer_rate; | |
4663 | int i; | |
4664 | ||
4665 | for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { | |
4666 | max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i, | |
4667 | ioa_cfg->bus_attr[i].bus_width); | |
4668 | ||
4669 | if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) | |
4670 | ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; | |
4671 | } | |
4672 | } | |
4673 | ||
4674 | /** | |
4675 | * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 | |
4676 | * @ioa_cfg: ioa config struct | |
4677 | * @mode_pages: mode page 28 buffer | |
4678 | * | |
4679 | * Updates mode page 28 based on driver configuration | |
4680 | * | |
4681 | * Return value: | |
4682 | * none | |
4683 | **/ | |
4684 | static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, | |
4685 | struct ipr_mode_pages *mode_pages) | |
4686 | { | |
4687 | int i, entry_length; | |
4688 | struct ipr_dev_bus_entry *bus; | |
4689 | struct ipr_bus_attributes *bus_attr; | |
4690 | struct ipr_mode_page28 *mode_page; | |
4691 | ||
4692 | mode_page = ipr_get_mode_page(mode_pages, 0x28, | |
4693 | sizeof(struct ipr_mode_page28)); | |
4694 | ||
4695 | entry_length = mode_page->entry_length; | |
4696 | ||
4697 | /* Loop for each device bus entry */ | |
4698 | for (i = 0, bus = mode_page->bus; | |
4699 | i < mode_page->num_entries; | |
4700 | i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { | |
4701 | if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { | |
4702 | dev_err(&ioa_cfg->pdev->dev, | |
4703 | "Invalid resource address reported: 0x%08X\n", | |
4704 | IPR_GET_PHYS_LOC(bus->res_addr)); | |
4705 | continue; | |
4706 | } | |
4707 | ||
4708 | bus_attr = &ioa_cfg->bus_attr[i]; | |
4709 | bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; | |
4710 | bus->bus_width = bus_attr->bus_width; | |
4711 | bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); | |
4712 | bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; | |
4713 | if (bus_attr->qas_enabled) | |
4714 | bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; | |
4715 | else | |
4716 | bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; | |
4717 | } | |
4718 | } | |
4719 | ||
4720 | /** | |
4721 | * ipr_build_mode_select - Build a mode select command | |
4722 | * @ipr_cmd: ipr command struct | |
4723 | * @res_handle: resource handle to send command to | |
4724 | * @parm: Byte 2 of Mode Sense command | |
4725 | * @dma_addr: DMA buffer address | |
4726 | * @xfer_len: data transfer length | |
4727 | * | |
4728 | * Return value: | |
4729 | * none | |
4730 | **/ | |
4731 | static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, | |
4732 | __be32 res_handle, u8 parm, u32 dma_addr, | |
4733 | u8 xfer_len) | |
4734 | { | |
4735 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
4736 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
4737 | ||
4738 | ioarcb->res_handle = res_handle; | |
4739 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
4740 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
4741 | ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; | |
4742 | ioarcb->cmd_pkt.cdb[1] = parm; | |
4743 | ioarcb->cmd_pkt.cdb[4] = xfer_len; | |
4744 | ||
4745 | ioadl->flags_and_data_len = | |
4746 | cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | xfer_len); | |
4747 | ioadl->address = cpu_to_be32(dma_addr); | |
4748 | ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
4749 | ioarcb->write_data_transfer_length = cpu_to_be32(xfer_len); | |
4750 | } | |
4751 | ||
4752 | /** | |
4753 | * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA | |
4754 | * @ipr_cmd: ipr command struct | |
4755 | * | |
4756 | * This function sets up the SCSI bus attributes and sends | |
4757 | * a Mode Select for Page 28 to activate them. | |
4758 | * | |
4759 | * Return value: | |
4760 | * IPR_RC_JOB_RETURN | |
4761 | **/ | |
4762 | static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) | |
4763 | { | |
4764 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4765 | struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; | |
4766 | int length; | |
4767 | ||
4768 | ENTER; | |
4733804c BK |
4769 | ipr_scsi_bus_speed_limit(ioa_cfg); |
4770 | ipr_check_term_power(ioa_cfg, mode_pages); | |
4771 | ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); | |
4772 | length = mode_pages->hdr.length + 1; | |
4773 | mode_pages->hdr.length = 0; | |
1da177e4 LT |
4774 | |
4775 | ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, | |
4776 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), | |
4777 | length); | |
4778 | ||
62275040 | 4779 | ipr_cmd->job_step = ipr_setup_write_cache; |
1da177e4 LT |
4780 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); |
4781 | ||
4782 | LEAVE; | |
4783 | return IPR_RC_JOB_RETURN; | |
4784 | } | |
4785 | ||
4786 | /** | |
4787 | * ipr_build_mode_sense - Builds a mode sense command | |
4788 | * @ipr_cmd: ipr command struct | |
4789 | * @res: resource entry struct | |
4790 | * @parm: Byte 2 of mode sense command | |
4791 | * @dma_addr: DMA address of mode sense buffer | |
4792 | * @xfer_len: Size of DMA buffer | |
4793 | * | |
4794 | * Return value: | |
4795 | * none | |
4796 | **/ | |
4797 | static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, | |
4798 | __be32 res_handle, | |
4799 | u8 parm, u32 dma_addr, u8 xfer_len) | |
4800 | { | |
4801 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
4802 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
4803 | ||
4804 | ioarcb->res_handle = res_handle; | |
4805 | ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; | |
4806 | ioarcb->cmd_pkt.cdb[2] = parm; | |
4807 | ioarcb->cmd_pkt.cdb[4] = xfer_len; | |
4808 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
4809 | ||
4810 | ioadl->flags_and_data_len = | |
4811 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len); | |
4812 | ioadl->address = cpu_to_be32(dma_addr); | |
4813 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
4814 | ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len); | |
4815 | } | |
4816 | ||
dfed823e BK |
4817 | /** |
4818 | * ipr_reset_cmd_failed - Handle failure of IOA reset command | |
4819 | * @ipr_cmd: ipr command struct | |
4820 | * | |
4821 | * This function handles the failure of an IOA bringup command. | |
4822 | * | |
4823 | * Return value: | |
4824 | * IPR_RC_JOB_RETURN | |
4825 | **/ | |
4826 | static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) | |
4827 | { | |
4828 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4829 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
4830 | ||
4831 | dev_err(&ioa_cfg->pdev->dev, | |
4832 | "0x%02X failed with IOASC: 0x%08X\n", | |
4833 | ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); | |
4834 | ||
4835 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
4836 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4837 | return IPR_RC_JOB_RETURN; | |
4838 | } | |
4839 | ||
4840 | /** | |
4841 | * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense | |
4842 | * @ipr_cmd: ipr command struct | |
4843 | * | |
4844 | * This function handles the failure of a Mode Sense to the IOAFP. | |
4845 | * Some adapters do not handle all mode pages. | |
4846 | * | |
4847 | * Return value: | |
4848 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
4849 | **/ | |
4850 | static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) | |
4851 | { | |
4852 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
4853 | ||
4854 | if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { | |
4855 | ipr_cmd->job_step = ipr_setup_write_cache; | |
4856 | return IPR_RC_JOB_CONTINUE; | |
4857 | } | |
4858 | ||
4859 | return ipr_reset_cmd_failed(ipr_cmd); | |
4860 | } | |
4861 | ||
1da177e4 LT |
4862 | /** |
4863 | * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA | |
4864 | * @ipr_cmd: ipr command struct | |
4865 | * | |
4866 | * This function send a Page 28 mode sense to the IOA to | |
4867 | * retrieve SCSI bus attributes. | |
4868 | * | |
4869 | * Return value: | |
4870 | * IPR_RC_JOB_RETURN | |
4871 | **/ | |
4872 | static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) | |
4873 | { | |
4874 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4875 | ||
4876 | ENTER; | |
4877 | ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), | |
4878 | 0x28, ioa_cfg->vpd_cbs_dma + | |
4879 | offsetof(struct ipr_misc_cbs, mode_pages), | |
4880 | sizeof(struct ipr_mode_pages)); | |
4881 | ||
4882 | ipr_cmd->job_step = ipr_ioafp_mode_select_page28; | |
dfed823e | 4883 | ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; |
1da177e4 LT |
4884 | |
4885 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
4886 | ||
4887 | LEAVE; | |
4888 | return IPR_RC_JOB_RETURN; | |
4889 | } | |
4890 | ||
4891 | /** | |
4892 | * ipr_init_res_table - Initialize the resource table | |
4893 | * @ipr_cmd: ipr command struct | |
4894 | * | |
4895 | * This function looks through the existing resource table, comparing | |
4896 | * it with the config table. This function will take care of old/new | |
4897 | * devices and schedule adding/removing them from the mid-layer | |
4898 | * as appropriate. | |
4899 | * | |
4900 | * Return value: | |
4901 | * IPR_RC_JOB_CONTINUE | |
4902 | **/ | |
4903 | static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) | |
4904 | { | |
4905 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4906 | struct ipr_resource_entry *res, *temp; | |
4907 | struct ipr_config_table_entry *cfgte; | |
4908 | int found, i; | |
4909 | LIST_HEAD(old_res); | |
4910 | ||
4911 | ENTER; | |
4912 | if (ioa_cfg->cfg_table->hdr.flags & IPR_UCODE_DOWNLOAD_REQ) | |
4913 | dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n"); | |
4914 | ||
4915 | list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) | |
4916 | list_move_tail(&res->queue, &old_res); | |
4917 | ||
4918 | for (i = 0; i < ioa_cfg->cfg_table->hdr.num_entries; i++) { | |
4919 | cfgte = &ioa_cfg->cfg_table->dev[i]; | |
4920 | found = 0; | |
4921 | ||
4922 | list_for_each_entry_safe(res, temp, &old_res, queue) { | |
4923 | if (!memcmp(&res->cfgte.res_addr, | |
4924 | &cfgte->res_addr, sizeof(cfgte->res_addr))) { | |
4925 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); | |
4926 | found = 1; | |
4927 | break; | |
4928 | } | |
4929 | } | |
4930 | ||
4931 | if (!found) { | |
4932 | if (list_empty(&ioa_cfg->free_res_q)) { | |
4933 | dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n"); | |
4934 | break; | |
4935 | } | |
4936 | ||
4937 | found = 1; | |
4938 | res = list_entry(ioa_cfg->free_res_q.next, | |
4939 | struct ipr_resource_entry, queue); | |
4940 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); | |
4941 | ipr_init_res_entry(res); | |
4942 | res->add_to_ml = 1; | |
4943 | } | |
4944 | ||
4945 | if (found) | |
4946 | memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry)); | |
4947 | } | |
4948 | ||
4949 | list_for_each_entry_safe(res, temp, &old_res, queue) { | |
4950 | if (res->sdev) { | |
4951 | res->del_from_ml = 1; | |
1121b794 | 4952 | res->cfgte.res_handle = IPR_INVALID_RES_HANDLE; |
1da177e4 LT |
4953 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); |
4954 | } else { | |
4955 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); | |
4956 | } | |
4957 | } | |
4958 | ||
4959 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; | |
4960 | ||
4961 | LEAVE; | |
4962 | return IPR_RC_JOB_CONTINUE; | |
4963 | } | |
4964 | ||
4965 | /** | |
4966 | * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. | |
4967 | * @ipr_cmd: ipr command struct | |
4968 | * | |
4969 | * This function sends a Query IOA Configuration command | |
4970 | * to the adapter to retrieve the IOA configuration table. | |
4971 | * | |
4972 | * Return value: | |
4973 | * IPR_RC_JOB_RETURN | |
4974 | **/ | |
4975 | static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) | |
4976 | { | |
4977 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4978 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
4979 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
4980 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; | |
4981 | ||
4982 | ENTER; | |
4983 | dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", | |
4984 | ucode_vpd->major_release, ucode_vpd->card_type, | |
4985 | ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); | |
4986 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
4987 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
4988 | ||
4989 | ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; | |
4990 | ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_config_table) >> 8) & 0xff; | |
4991 | ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_config_table) & 0xff; | |
4992 | ||
4993 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
4994 | ioarcb->read_data_transfer_length = | |
4995 | cpu_to_be32(sizeof(struct ipr_config_table)); | |
4996 | ||
4997 | ioadl->address = cpu_to_be32(ioa_cfg->cfg_table_dma); | |
4998 | ioadl->flags_and_data_len = | |
4999 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(struct ipr_config_table)); | |
5000 | ||
5001 | ipr_cmd->job_step = ipr_init_res_table; | |
5002 | ||
5003 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
5004 | ||
5005 | LEAVE; | |
5006 | return IPR_RC_JOB_RETURN; | |
5007 | } | |
5008 | ||
5009 | /** | |
5010 | * ipr_ioafp_inquiry - Send an Inquiry to the adapter. | |
5011 | * @ipr_cmd: ipr command struct | |
5012 | * | |
5013 | * This utility function sends an inquiry to the adapter. | |
5014 | * | |
5015 | * Return value: | |
5016 | * none | |
5017 | **/ | |
5018 | static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, | |
5019 | u32 dma_addr, u8 xfer_len) | |
5020 | { | |
5021 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
5022 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
5023 | ||
5024 | ENTER; | |
5025 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
5026 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
5027 | ||
5028 | ioarcb->cmd_pkt.cdb[0] = INQUIRY; | |
5029 | ioarcb->cmd_pkt.cdb[1] = flags; | |
5030 | ioarcb->cmd_pkt.cdb[2] = page; | |
5031 | ioarcb->cmd_pkt.cdb[4] = xfer_len; | |
5032 | ||
5033 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
5034 | ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len); | |
5035 | ||
5036 | ioadl->address = cpu_to_be32(dma_addr); | |
5037 | ioadl->flags_and_data_len = | |
5038 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len); | |
5039 | ||
5040 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
5041 | LEAVE; | |
5042 | } | |
5043 | ||
62275040 BK |
5044 | /** |
5045 | * ipr_inquiry_page_supported - Is the given inquiry page supported | |
5046 | * @page0: inquiry page 0 buffer | |
5047 | * @page: page code. | |
5048 | * | |
5049 | * This function determines if the specified inquiry page is supported. | |
5050 | * | |
5051 | * Return value: | |
5052 | * 1 if page is supported / 0 if not | |
5053 | **/ | |
5054 | static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) | |
5055 | { | |
5056 | int i; | |
5057 | ||
5058 | for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) | |
5059 | if (page0->page[i] == page) | |
5060 | return 1; | |
5061 | ||
5062 | return 0; | |
5063 | } | |
5064 | ||
1da177e4 LT |
5065 | /** |
5066 | * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. | |
5067 | * @ipr_cmd: ipr command struct | |
5068 | * | |
5069 | * This function sends a Page 3 inquiry to the adapter | |
5070 | * to retrieve software VPD information. | |
5071 | * | |
5072 | * Return value: | |
5073 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5074 | **/ | |
5075 | static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) | |
62275040 BK |
5076 | { |
5077 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5078 | struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; | |
5079 | ||
5080 | ENTER; | |
5081 | ||
5082 | if (!ipr_inquiry_page_supported(page0, 1)) | |
5083 | ioa_cfg->cache_state = CACHE_NONE; | |
5084 | ||
5085 | ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; | |
5086 | ||
5087 | ipr_ioafp_inquiry(ipr_cmd, 1, 3, | |
5088 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), | |
5089 | sizeof(struct ipr_inquiry_page3)); | |
5090 | ||
5091 | LEAVE; | |
5092 | return IPR_RC_JOB_RETURN; | |
5093 | } | |
5094 | ||
5095 | /** | |
5096 | * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. | |
5097 | * @ipr_cmd: ipr command struct | |
5098 | * | |
5099 | * This function sends a Page 0 inquiry to the adapter | |
5100 | * to retrieve supported inquiry pages. | |
5101 | * | |
5102 | * Return value: | |
5103 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5104 | **/ | |
5105 | static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) | |
1da177e4 LT |
5106 | { |
5107 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5108 | char type[5]; | |
5109 | ||
5110 | ENTER; | |
5111 | ||
5112 | /* Grab the type out of the VPD and store it away */ | |
5113 | memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); | |
5114 | type[4] = '\0'; | |
5115 | ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); | |
5116 | ||
62275040 | 5117 | ipr_cmd->job_step = ipr_ioafp_page3_inquiry; |
1da177e4 | 5118 | |
62275040 BK |
5119 | ipr_ioafp_inquiry(ipr_cmd, 1, 0, |
5120 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), | |
5121 | sizeof(struct ipr_inquiry_page0)); | |
1da177e4 LT |
5122 | |
5123 | LEAVE; | |
5124 | return IPR_RC_JOB_RETURN; | |
5125 | } | |
5126 | ||
5127 | /** | |
5128 | * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. | |
5129 | * @ipr_cmd: ipr command struct | |
5130 | * | |
5131 | * This function sends a standard inquiry to the adapter. | |
5132 | * | |
5133 | * Return value: | |
5134 | * IPR_RC_JOB_RETURN | |
5135 | **/ | |
5136 | static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) | |
5137 | { | |
5138 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5139 | ||
5140 | ENTER; | |
62275040 | 5141 | ipr_cmd->job_step = ipr_ioafp_page0_inquiry; |
1da177e4 LT |
5142 | |
5143 | ipr_ioafp_inquiry(ipr_cmd, 0, 0, | |
5144 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), | |
5145 | sizeof(struct ipr_ioa_vpd)); | |
5146 | ||
5147 | LEAVE; | |
5148 | return IPR_RC_JOB_RETURN; | |
5149 | } | |
5150 | ||
5151 | /** | |
5152 | * ipr_ioafp_indentify_hrrq - Send Identify Host RRQ. | |
5153 | * @ipr_cmd: ipr command struct | |
5154 | * | |
5155 | * This function send an Identify Host Request Response Queue | |
5156 | * command to establish the HRRQ with the adapter. | |
5157 | * | |
5158 | * Return value: | |
5159 | * IPR_RC_JOB_RETURN | |
5160 | **/ | |
5161 | static int ipr_ioafp_indentify_hrrq(struct ipr_cmnd *ipr_cmd) | |
5162 | { | |
5163 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5164 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
5165 | ||
5166 | ENTER; | |
5167 | dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n"); | |
5168 | ||
5169 | ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; | |
5170 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
5171 | ||
5172 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
5173 | ioarcb->cmd_pkt.cdb[2] = | |
5174 | ((u32) ioa_cfg->host_rrq_dma >> 24) & 0xff; | |
5175 | ioarcb->cmd_pkt.cdb[3] = | |
5176 | ((u32) ioa_cfg->host_rrq_dma >> 16) & 0xff; | |
5177 | ioarcb->cmd_pkt.cdb[4] = | |
5178 | ((u32) ioa_cfg->host_rrq_dma >> 8) & 0xff; | |
5179 | ioarcb->cmd_pkt.cdb[5] = | |
5180 | ((u32) ioa_cfg->host_rrq_dma) & 0xff; | |
5181 | ioarcb->cmd_pkt.cdb[7] = | |
5182 | ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff; | |
5183 | ioarcb->cmd_pkt.cdb[8] = | |
5184 | (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff; | |
5185 | ||
5186 | ipr_cmd->job_step = ipr_ioafp_std_inquiry; | |
5187 | ||
5188 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
5189 | ||
5190 | LEAVE; | |
5191 | return IPR_RC_JOB_RETURN; | |
5192 | } | |
5193 | ||
5194 | /** | |
5195 | * ipr_reset_timer_done - Adapter reset timer function | |
5196 | * @ipr_cmd: ipr command struct | |
5197 | * | |
5198 | * Description: This function is used in adapter reset processing | |
5199 | * for timing events. If the reset_cmd pointer in the IOA | |
5200 | * config struct is not this adapter's we are doing nested | |
5201 | * resets and fail_all_ops will take care of freeing the | |
5202 | * command block. | |
5203 | * | |
5204 | * Return value: | |
5205 | * none | |
5206 | **/ | |
5207 | static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd) | |
5208 | { | |
5209 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5210 | unsigned long lock_flags = 0; | |
5211 | ||
5212 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
5213 | ||
5214 | if (ioa_cfg->reset_cmd == ipr_cmd) { | |
5215 | list_del(&ipr_cmd->queue); | |
5216 | ipr_cmd->done(ipr_cmd); | |
5217 | } | |
5218 | ||
5219 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
5220 | } | |
5221 | ||
5222 | /** | |
5223 | * ipr_reset_start_timer - Start a timer for adapter reset job | |
5224 | * @ipr_cmd: ipr command struct | |
5225 | * @timeout: timeout value | |
5226 | * | |
5227 | * Description: This function is used in adapter reset processing | |
5228 | * for timing events. If the reset_cmd pointer in the IOA | |
5229 | * config struct is not this adapter's we are doing nested | |
5230 | * resets and fail_all_ops will take care of freeing the | |
5231 | * command block. | |
5232 | * | |
5233 | * Return value: | |
5234 | * none | |
5235 | **/ | |
5236 | static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, | |
5237 | unsigned long timeout) | |
5238 | { | |
5239 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); | |
5240 | ipr_cmd->done = ipr_reset_ioa_job; | |
5241 | ||
5242 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; | |
5243 | ipr_cmd->timer.expires = jiffies + timeout; | |
5244 | ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done; | |
5245 | add_timer(&ipr_cmd->timer); | |
5246 | } | |
5247 | ||
5248 | /** | |
5249 | * ipr_init_ioa_mem - Initialize ioa_cfg control block | |
5250 | * @ioa_cfg: ioa cfg struct | |
5251 | * | |
5252 | * Return value: | |
5253 | * nothing | |
5254 | **/ | |
5255 | static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) | |
5256 | { | |
5257 | memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS); | |
5258 | ||
5259 | /* Initialize Host RRQ pointers */ | |
5260 | ioa_cfg->hrrq_start = ioa_cfg->host_rrq; | |
5261 | ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1]; | |
5262 | ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; | |
5263 | ioa_cfg->toggle_bit = 1; | |
5264 | ||
5265 | /* Zero out config table */ | |
5266 | memset(ioa_cfg->cfg_table, 0, sizeof(struct ipr_config_table)); | |
5267 | } | |
5268 | ||
5269 | /** | |
5270 | * ipr_reset_enable_ioa - Enable the IOA following a reset. | |
5271 | * @ipr_cmd: ipr command struct | |
5272 | * | |
5273 | * This function reinitializes some control blocks and | |
5274 | * enables destructive diagnostics on the adapter. | |
5275 | * | |
5276 | * Return value: | |
5277 | * IPR_RC_JOB_RETURN | |
5278 | **/ | |
5279 | static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) | |
5280 | { | |
5281 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5282 | volatile u32 int_reg; | |
5283 | ||
5284 | ENTER; | |
5285 | ipr_cmd->job_step = ipr_ioafp_indentify_hrrq; | |
5286 | ipr_init_ioa_mem(ioa_cfg); | |
5287 | ||
5288 | ioa_cfg->allow_interrupts = 1; | |
5289 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
5290 | ||
5291 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { | |
5292 | writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), | |
5293 | ioa_cfg->regs.clr_interrupt_mask_reg); | |
5294 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
5295 | return IPR_RC_JOB_CONTINUE; | |
5296 | } | |
5297 | ||
5298 | /* Enable destructive diagnostics on IOA */ | |
3d1d0da6 | 5299 | writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg); |
1da177e4 LT |
5300 | |
5301 | writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg); | |
5302 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
5303 | ||
5304 | dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n"); | |
5305 | ||
5306 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; | |
5307 | ipr_cmd->timer.expires = jiffies + (ipr_transop_timeout * HZ); | |
5308 | ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; | |
5309 | ipr_cmd->done = ipr_reset_ioa_job; | |
5310 | add_timer(&ipr_cmd->timer); | |
5311 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
5312 | ||
5313 | LEAVE; | |
5314 | return IPR_RC_JOB_RETURN; | |
5315 | } | |
5316 | ||
5317 | /** | |
5318 | * ipr_reset_wait_for_dump - Wait for a dump to timeout. | |
5319 | * @ipr_cmd: ipr command struct | |
5320 | * | |
5321 | * This function is invoked when an adapter dump has run out | |
5322 | * of processing time. | |
5323 | * | |
5324 | * Return value: | |
5325 | * IPR_RC_JOB_CONTINUE | |
5326 | **/ | |
5327 | static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) | |
5328 | { | |
5329 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5330 | ||
5331 | if (ioa_cfg->sdt_state == GET_DUMP) | |
5332 | ioa_cfg->sdt_state = ABORT_DUMP; | |
5333 | ||
5334 | ipr_cmd->job_step = ipr_reset_alert; | |
5335 | ||
5336 | return IPR_RC_JOB_CONTINUE; | |
5337 | } | |
5338 | ||
5339 | /** | |
5340 | * ipr_unit_check_no_data - Log a unit check/no data error log | |
5341 | * @ioa_cfg: ioa config struct | |
5342 | * | |
5343 | * Logs an error indicating the adapter unit checked, but for some | |
5344 | * reason, we were unable to fetch the unit check buffer. | |
5345 | * | |
5346 | * Return value: | |
5347 | * nothing | |
5348 | **/ | |
5349 | static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) | |
5350 | { | |
5351 | ioa_cfg->errors_logged++; | |
5352 | dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n"); | |
5353 | } | |
5354 | ||
5355 | /** | |
5356 | * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA | |
5357 | * @ioa_cfg: ioa config struct | |
5358 | * | |
5359 | * Fetches the unit check buffer from the adapter by clocking the data | |
5360 | * through the mailbox register. | |
5361 | * | |
5362 | * Return value: | |
5363 | * nothing | |
5364 | **/ | |
5365 | static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) | |
5366 | { | |
5367 | unsigned long mailbox; | |
5368 | struct ipr_hostrcb *hostrcb; | |
5369 | struct ipr_uc_sdt sdt; | |
5370 | int rc, length; | |
5371 | ||
5372 | mailbox = readl(ioa_cfg->ioa_mailbox); | |
5373 | ||
5374 | if (!ipr_sdt_is_fmt2(mailbox)) { | |
5375 | ipr_unit_check_no_data(ioa_cfg); | |
5376 | return; | |
5377 | } | |
5378 | ||
5379 | memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); | |
5380 | rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt, | |
5381 | (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); | |
5382 | ||
5383 | if (rc || (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE) || | |
5384 | !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY)) { | |
5385 | ipr_unit_check_no_data(ioa_cfg); | |
5386 | return; | |
5387 | } | |
5388 | ||
5389 | /* Find length of the first sdt entry (UC buffer) */ | |
5390 | length = (be32_to_cpu(sdt.entry[0].end_offset) - | |
5391 | be32_to_cpu(sdt.entry[0].bar_str_offset)) & IPR_FMT2_MBX_ADDR_MASK; | |
5392 | ||
5393 | hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, | |
5394 | struct ipr_hostrcb, queue); | |
5395 | list_del(&hostrcb->queue); | |
5396 | memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); | |
5397 | ||
5398 | rc = ipr_get_ldump_data_section(ioa_cfg, | |
5399 | be32_to_cpu(sdt.entry[0].bar_str_offset), | |
5400 | (__be32 *)&hostrcb->hcam, | |
5401 | min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); | |
5402 | ||
5403 | if (!rc) | |
5404 | ipr_handle_log_data(ioa_cfg, hostrcb); | |
5405 | else | |
5406 | ipr_unit_check_no_data(ioa_cfg); | |
5407 | ||
5408 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); | |
5409 | } | |
5410 | ||
5411 | /** | |
5412 | * ipr_reset_restore_cfg_space - Restore PCI config space. | |
5413 | * @ipr_cmd: ipr command struct | |
5414 | * | |
5415 | * Description: This function restores the saved PCI config space of | |
5416 | * the adapter, fails all outstanding ops back to the callers, and | |
5417 | * fetches the dump/unit check if applicable to this reset. | |
5418 | * | |
5419 | * Return value: | |
5420 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5421 | **/ | |
5422 | static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) | |
5423 | { | |
5424 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5425 | int rc; | |
5426 | ||
5427 | ENTER; | |
b30197d2 | 5428 | pci_unblock_user_cfg_access(ioa_cfg->pdev); |
1da177e4 LT |
5429 | rc = pci_restore_state(ioa_cfg->pdev); |
5430 | ||
5431 | if (rc != PCIBIOS_SUCCESSFUL) { | |
5432 | ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); | |
5433 | return IPR_RC_JOB_CONTINUE; | |
5434 | } | |
5435 | ||
5436 | if (ipr_set_pcix_cmd_reg(ioa_cfg)) { | |
5437 | ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); | |
5438 | return IPR_RC_JOB_CONTINUE; | |
5439 | } | |
5440 | ||
5441 | ipr_fail_all_ops(ioa_cfg); | |
5442 | ||
5443 | if (ioa_cfg->ioa_unit_checked) { | |
5444 | ioa_cfg->ioa_unit_checked = 0; | |
5445 | ipr_get_unit_check_buffer(ioa_cfg); | |
5446 | ipr_cmd->job_step = ipr_reset_alert; | |
5447 | ipr_reset_start_timer(ipr_cmd, 0); | |
5448 | return IPR_RC_JOB_RETURN; | |
5449 | } | |
5450 | ||
5451 | if (ioa_cfg->in_ioa_bringdown) { | |
5452 | ipr_cmd->job_step = ipr_ioa_bringdown_done; | |
5453 | } else { | |
5454 | ipr_cmd->job_step = ipr_reset_enable_ioa; | |
5455 | ||
5456 | if (GET_DUMP == ioa_cfg->sdt_state) { | |
5457 | ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT); | |
5458 | ipr_cmd->job_step = ipr_reset_wait_for_dump; | |
5459 | schedule_work(&ioa_cfg->work_q); | |
5460 | return IPR_RC_JOB_RETURN; | |
5461 | } | |
5462 | } | |
5463 | ||
5464 | ENTER; | |
5465 | return IPR_RC_JOB_CONTINUE; | |
5466 | } | |
5467 | ||
5468 | /** | |
5469 | * ipr_reset_start_bist - Run BIST on the adapter. | |
5470 | * @ipr_cmd: ipr command struct | |
5471 | * | |
5472 | * Description: This function runs BIST on the adapter, then delays 2 seconds. | |
5473 | * | |
5474 | * Return value: | |
5475 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5476 | **/ | |
5477 | static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) | |
5478 | { | |
5479 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5480 | int rc; | |
5481 | ||
5482 | ENTER; | |
b30197d2 | 5483 | pci_block_user_cfg_access(ioa_cfg->pdev); |
1da177e4 LT |
5484 | rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); |
5485 | ||
5486 | if (rc != PCIBIOS_SUCCESSFUL) { | |
5487 | ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); | |
5488 | rc = IPR_RC_JOB_CONTINUE; | |
5489 | } else { | |
5490 | ipr_cmd->job_step = ipr_reset_restore_cfg_space; | |
5491 | ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); | |
5492 | rc = IPR_RC_JOB_RETURN; | |
5493 | } | |
5494 | ||
5495 | LEAVE; | |
5496 | return rc; | |
5497 | } | |
5498 | ||
5499 | /** | |
5500 | * ipr_reset_allowed - Query whether or not IOA can be reset | |
5501 | * @ioa_cfg: ioa config struct | |
5502 | * | |
5503 | * Return value: | |
5504 | * 0 if reset not allowed / non-zero if reset is allowed | |
5505 | **/ | |
5506 | static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) | |
5507 | { | |
5508 | volatile u32 temp_reg; | |
5509 | ||
5510 | temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
5511 | return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); | |
5512 | } | |
5513 | ||
5514 | /** | |
5515 | * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. | |
5516 | * @ipr_cmd: ipr command struct | |
5517 | * | |
5518 | * Description: This function waits for adapter permission to run BIST, | |
5519 | * then runs BIST. If the adapter does not give permission after a | |
5520 | * reasonable time, we will reset the adapter anyway. The impact of | |
5521 | * resetting the adapter without warning the adapter is the risk of | |
5522 | * losing the persistent error log on the adapter. If the adapter is | |
5523 | * reset while it is writing to the flash on the adapter, the flash | |
5524 | * segment will have bad ECC and be zeroed. | |
5525 | * | |
5526 | * Return value: | |
5527 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5528 | **/ | |
5529 | static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) | |
5530 | { | |
5531 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5532 | int rc = IPR_RC_JOB_RETURN; | |
5533 | ||
5534 | if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { | |
5535 | ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; | |
5536 | ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); | |
5537 | } else { | |
5538 | ipr_cmd->job_step = ipr_reset_start_bist; | |
5539 | rc = IPR_RC_JOB_CONTINUE; | |
5540 | } | |
5541 | ||
5542 | return rc; | |
5543 | } | |
5544 | ||
5545 | /** | |
5546 | * ipr_reset_alert_part2 - Alert the adapter of a pending reset | |
5547 | * @ipr_cmd: ipr command struct | |
5548 | * | |
5549 | * Description: This function alerts the adapter that it will be reset. | |
5550 | * If memory space is not currently enabled, proceed directly | |
5551 | * to running BIST on the adapter. The timer must always be started | |
5552 | * so we guarantee we do not run BIST from ipr_isr. | |
5553 | * | |
5554 | * Return value: | |
5555 | * IPR_RC_JOB_RETURN | |
5556 | **/ | |
5557 | static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) | |
5558 | { | |
5559 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5560 | u16 cmd_reg; | |
5561 | int rc; | |
5562 | ||
5563 | ENTER; | |
5564 | rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg); | |
5565 | ||
5566 | if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { | |
5567 | ipr_mask_and_clear_interrupts(ioa_cfg, ~0); | |
5568 | writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg); | |
5569 | ipr_cmd->job_step = ipr_reset_wait_to_start_bist; | |
5570 | } else { | |
5571 | ipr_cmd->job_step = ipr_reset_start_bist; | |
5572 | } | |
5573 | ||
5574 | ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; | |
5575 | ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); | |
5576 | ||
5577 | LEAVE; | |
5578 | return IPR_RC_JOB_RETURN; | |
5579 | } | |
5580 | ||
5581 | /** | |
5582 | * ipr_reset_ucode_download_done - Microcode download completion | |
5583 | * @ipr_cmd: ipr command struct | |
5584 | * | |
5585 | * Description: This function unmaps the microcode download buffer. | |
5586 | * | |
5587 | * Return value: | |
5588 | * IPR_RC_JOB_CONTINUE | |
5589 | **/ | |
5590 | static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) | |
5591 | { | |
5592 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5593 | struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; | |
5594 | ||
5595 | pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist, | |
5596 | sglist->num_sg, DMA_TO_DEVICE); | |
5597 | ||
5598 | ipr_cmd->job_step = ipr_reset_alert; | |
5599 | return IPR_RC_JOB_CONTINUE; | |
5600 | } | |
5601 | ||
5602 | /** | |
5603 | * ipr_reset_ucode_download - Download microcode to the adapter | |
5604 | * @ipr_cmd: ipr command struct | |
5605 | * | |
5606 | * Description: This function checks to see if it there is microcode | |
5607 | * to download to the adapter. If there is, a download is performed. | |
5608 | * | |
5609 | * Return value: | |
5610 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5611 | **/ | |
5612 | static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) | |
5613 | { | |
5614 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5615 | struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; | |
5616 | ||
5617 | ENTER; | |
5618 | ipr_cmd->job_step = ipr_reset_alert; | |
5619 | ||
5620 | if (!sglist) | |
5621 | return IPR_RC_JOB_CONTINUE; | |
5622 | ||
5623 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
5624 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
5625 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; | |
5626 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; | |
5627 | ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; | |
5628 | ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; | |
5629 | ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; | |
5630 | ||
12baa420 | 5631 | ipr_build_ucode_ioadl(ipr_cmd, sglist); |
1da177e4 LT |
5632 | ipr_cmd->job_step = ipr_reset_ucode_download_done; |
5633 | ||
5634 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, | |
5635 | IPR_WRITE_BUFFER_TIMEOUT); | |
5636 | ||
5637 | LEAVE; | |
5638 | return IPR_RC_JOB_RETURN; | |
5639 | } | |
5640 | ||
5641 | /** | |
5642 | * ipr_reset_shutdown_ioa - Shutdown the adapter | |
5643 | * @ipr_cmd: ipr command struct | |
5644 | * | |
5645 | * Description: This function issues an adapter shutdown of the | |
5646 | * specified type to the specified adapter as part of the | |
5647 | * adapter reset job. | |
5648 | * | |
5649 | * Return value: | |
5650 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5651 | **/ | |
5652 | static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) | |
5653 | { | |
5654 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5655 | enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; | |
5656 | unsigned long timeout; | |
5657 | int rc = IPR_RC_JOB_CONTINUE; | |
5658 | ||
5659 | ENTER; | |
5660 | if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) { | |
5661 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
5662 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
5663 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; | |
5664 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; | |
5665 | ||
5666 | if (shutdown_type == IPR_SHUTDOWN_ABBREV) | |
5667 | timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; | |
5668 | else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) | |
5669 | timeout = IPR_INTERNAL_TIMEOUT; | |
5670 | else | |
5671 | timeout = IPR_SHUTDOWN_TIMEOUT; | |
5672 | ||
5673 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); | |
5674 | ||
5675 | rc = IPR_RC_JOB_RETURN; | |
5676 | ipr_cmd->job_step = ipr_reset_ucode_download; | |
5677 | } else | |
5678 | ipr_cmd->job_step = ipr_reset_alert; | |
5679 | ||
5680 | LEAVE; | |
5681 | return rc; | |
5682 | } | |
5683 | ||
5684 | /** | |
5685 | * ipr_reset_ioa_job - Adapter reset job | |
5686 | * @ipr_cmd: ipr command struct | |
5687 | * | |
5688 | * Description: This function is the job router for the adapter reset job. | |
5689 | * | |
5690 | * Return value: | |
5691 | * none | |
5692 | **/ | |
5693 | static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) | |
5694 | { | |
5695 | u32 rc, ioasc; | |
1da177e4 LT |
5696 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
5697 | ||
5698 | do { | |
5699 | ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
5700 | ||
5701 | if (ioa_cfg->reset_cmd != ipr_cmd) { | |
5702 | /* | |
5703 | * We are doing nested adapter resets and this is | |
5704 | * not the current reset job. | |
5705 | */ | |
5706 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
5707 | return; | |
5708 | } | |
5709 | ||
5710 | if (IPR_IOASC_SENSE_KEY(ioasc)) { | |
dfed823e BK |
5711 | rc = ipr_cmd->job_step_failed(ipr_cmd); |
5712 | if (rc == IPR_RC_JOB_RETURN) | |
5713 | return; | |
1da177e4 LT |
5714 | } |
5715 | ||
5716 | ipr_reinit_ipr_cmnd(ipr_cmd); | |
dfed823e | 5717 | ipr_cmd->job_step_failed = ipr_reset_cmd_failed; |
1da177e4 LT |
5718 | rc = ipr_cmd->job_step(ipr_cmd); |
5719 | } while(rc == IPR_RC_JOB_CONTINUE); | |
5720 | } | |
5721 | ||
5722 | /** | |
5723 | * _ipr_initiate_ioa_reset - Initiate an adapter reset | |
5724 | * @ioa_cfg: ioa config struct | |
5725 | * @job_step: first job step of reset job | |
5726 | * @shutdown_type: shutdown type | |
5727 | * | |
5728 | * Description: This function will initiate the reset of the given adapter | |
5729 | * starting at the selected job step. | |
5730 | * If the caller needs to wait on the completion of the reset, | |
5731 | * the caller must sleep on the reset_wait_q. | |
5732 | * | |
5733 | * Return value: | |
5734 | * none | |
5735 | **/ | |
5736 | static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, | |
5737 | int (*job_step) (struct ipr_cmnd *), | |
5738 | enum ipr_shutdown_type shutdown_type) | |
5739 | { | |
5740 | struct ipr_cmnd *ipr_cmd; | |
5741 | ||
5742 | ioa_cfg->in_reset_reload = 1; | |
5743 | ioa_cfg->allow_cmds = 0; | |
5744 | scsi_block_requests(ioa_cfg->host); | |
5745 | ||
5746 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
5747 | ioa_cfg->reset_cmd = ipr_cmd; | |
5748 | ipr_cmd->job_step = job_step; | |
5749 | ipr_cmd->u.shutdown_type = shutdown_type; | |
5750 | ||
5751 | ipr_reset_ioa_job(ipr_cmd); | |
5752 | } | |
5753 | ||
5754 | /** | |
5755 | * ipr_initiate_ioa_reset - Initiate an adapter reset | |
5756 | * @ioa_cfg: ioa config struct | |
5757 | * @shutdown_type: shutdown type | |
5758 | * | |
5759 | * Description: This function will initiate the reset of the given adapter. | |
5760 | * If the caller needs to wait on the completion of the reset, | |
5761 | * the caller must sleep on the reset_wait_q. | |
5762 | * | |
5763 | * Return value: | |
5764 | * none | |
5765 | **/ | |
5766 | static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, | |
5767 | enum ipr_shutdown_type shutdown_type) | |
5768 | { | |
5769 | if (ioa_cfg->ioa_is_dead) | |
5770 | return; | |
5771 | ||
5772 | if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP) | |
5773 | ioa_cfg->sdt_state = ABORT_DUMP; | |
5774 | ||
5775 | if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { | |
5776 | dev_err(&ioa_cfg->pdev->dev, | |
5777 | "IOA taken offline - error recovery failed\n"); | |
5778 | ||
5779 | ioa_cfg->reset_retries = 0; | |
5780 | ioa_cfg->ioa_is_dead = 1; | |
5781 | ||
5782 | if (ioa_cfg->in_ioa_bringdown) { | |
5783 | ioa_cfg->reset_cmd = NULL; | |
5784 | ioa_cfg->in_reset_reload = 0; | |
5785 | ipr_fail_all_ops(ioa_cfg); | |
5786 | wake_up_all(&ioa_cfg->reset_wait_q); | |
5787 | ||
5788 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
5789 | scsi_unblock_requests(ioa_cfg->host); | |
5790 | spin_lock_irq(ioa_cfg->host->host_lock); | |
5791 | return; | |
5792 | } else { | |
5793 | ioa_cfg->in_ioa_bringdown = 1; | |
5794 | shutdown_type = IPR_SHUTDOWN_NONE; | |
5795 | } | |
5796 | } | |
5797 | ||
5798 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa, | |
5799 | shutdown_type); | |
5800 | } | |
5801 | ||
f8a88b19 LV |
5802 | /** |
5803 | * ipr_reset_freeze - Hold off all I/O activity | |
5804 | * @ipr_cmd: ipr command struct | |
5805 | * | |
5806 | * Description: If the PCI slot is frozen, hold off all I/O | |
5807 | * activity; then, as soon as the slot is available again, | |
5808 | * initiate an adapter reset. | |
5809 | */ | |
5810 | static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) | |
5811 | { | |
5812 | /* Disallow new interrupts, avoid loop */ | |
5813 | ipr_cmd->ioa_cfg->allow_interrupts = 0; | |
5814 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); | |
5815 | ipr_cmd->done = ipr_reset_ioa_job; | |
5816 | return IPR_RC_JOB_RETURN; | |
5817 | } | |
5818 | ||
5819 | /** | |
5820 | * ipr_pci_frozen - Called when slot has experienced a PCI bus error. | |
5821 | * @pdev: PCI device struct | |
5822 | * | |
5823 | * Description: This routine is called to tell us that the PCI bus | |
5824 | * is down. Can't do anything here, except put the device driver | |
5825 | * into a holding pattern, waiting for the PCI bus to come back. | |
5826 | */ | |
5827 | static void ipr_pci_frozen(struct pci_dev *pdev) | |
5828 | { | |
5829 | unsigned long flags = 0; | |
5830 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
5831 | ||
5832 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
5833 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE); | |
5834 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
5835 | } | |
5836 | ||
5837 | /** | |
5838 | * ipr_pci_slot_reset - Called when PCI slot has been reset. | |
5839 | * @pdev: PCI device struct | |
5840 | * | |
5841 | * Description: This routine is called by the pci error recovery | |
5842 | * code after the PCI slot has been reset, just before we | |
5843 | * should resume normal operations. | |
5844 | */ | |
5845 | static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) | |
5846 | { | |
5847 | unsigned long flags = 0; | |
5848 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
5849 | ||
5850 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
5851 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space, | |
5852 | IPR_SHUTDOWN_NONE); | |
5853 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
5854 | return PCI_ERS_RESULT_RECOVERED; | |
5855 | } | |
5856 | ||
5857 | /** | |
5858 | * ipr_pci_perm_failure - Called when PCI slot is dead for good. | |
5859 | * @pdev: PCI device struct | |
5860 | * | |
5861 | * Description: This routine is called when the PCI bus has | |
5862 | * permanently failed. | |
5863 | */ | |
5864 | static void ipr_pci_perm_failure(struct pci_dev *pdev) | |
5865 | { | |
5866 | unsigned long flags = 0; | |
5867 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
5868 | ||
5869 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
5870 | if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) | |
5871 | ioa_cfg->sdt_state = ABORT_DUMP; | |
5872 | ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES; | |
5873 | ioa_cfg->in_ioa_bringdown = 1; | |
5874 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
5875 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
5876 | } | |
5877 | ||
5878 | /** | |
5879 | * ipr_pci_error_detected - Called when a PCI error is detected. | |
5880 | * @pdev: PCI device struct | |
5881 | * @state: PCI channel state | |
5882 | * | |
5883 | * Description: Called when a PCI error is detected. | |
5884 | * | |
5885 | * Return value: | |
5886 | * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT | |
5887 | */ | |
5888 | static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, | |
5889 | pci_channel_state_t state) | |
5890 | { | |
5891 | switch (state) { | |
5892 | case pci_channel_io_frozen: | |
5893 | ipr_pci_frozen(pdev); | |
5894 | return PCI_ERS_RESULT_NEED_RESET; | |
5895 | case pci_channel_io_perm_failure: | |
5896 | ipr_pci_perm_failure(pdev); | |
5897 | return PCI_ERS_RESULT_DISCONNECT; | |
5898 | break; | |
5899 | default: | |
5900 | break; | |
5901 | } | |
5902 | return PCI_ERS_RESULT_NEED_RESET; | |
5903 | } | |
5904 | ||
1da177e4 LT |
5905 | /** |
5906 | * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) | |
5907 | * @ioa_cfg: ioa cfg struct | |
5908 | * | |
5909 | * Description: This is the second phase of adapter intialization | |
5910 | * This function takes care of initilizing the adapter to the point | |
5911 | * where it can accept new commands. | |
5912 | ||
5913 | * Return value: | |
5914 | * 0 on sucess / -EIO on failure | |
5915 | **/ | |
5916 | static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) | |
5917 | { | |
5918 | int rc = 0; | |
5919 | unsigned long host_lock_flags = 0; | |
5920 | ||
5921 | ENTER; | |
5922 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); | |
5923 | dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg); | |
ce155cce BK |
5924 | if (ioa_cfg->needs_hard_reset) { |
5925 | ioa_cfg->needs_hard_reset = 0; | |
5926 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
5927 | } else | |
5928 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, | |
5929 | IPR_SHUTDOWN_NONE); | |
1da177e4 LT |
5930 | |
5931 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
5932 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
5933 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); | |
5934 | ||
5935 | if (ioa_cfg->ioa_is_dead) { | |
5936 | rc = -EIO; | |
5937 | } else if (ipr_invalid_adapter(ioa_cfg)) { | |
5938 | if (!ipr_testmode) | |
5939 | rc = -EIO; | |
5940 | ||
5941 | dev_err(&ioa_cfg->pdev->dev, | |
5942 | "Adapter not supported in this hardware configuration.\n"); | |
5943 | } | |
5944 | ||
5945 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
5946 | ||
5947 | LEAVE; | |
5948 | return rc; | |
5949 | } | |
5950 | ||
5951 | /** | |
5952 | * ipr_free_cmd_blks - Frees command blocks allocated for an adapter | |
5953 | * @ioa_cfg: ioa config struct | |
5954 | * | |
5955 | * Return value: | |
5956 | * none | |
5957 | **/ | |
5958 | static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) | |
5959 | { | |
5960 | int i; | |
5961 | ||
5962 | for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { | |
5963 | if (ioa_cfg->ipr_cmnd_list[i]) | |
5964 | pci_pool_free(ioa_cfg->ipr_cmd_pool, | |
5965 | ioa_cfg->ipr_cmnd_list[i], | |
5966 | ioa_cfg->ipr_cmnd_list_dma[i]); | |
5967 | ||
5968 | ioa_cfg->ipr_cmnd_list[i] = NULL; | |
5969 | } | |
5970 | ||
5971 | if (ioa_cfg->ipr_cmd_pool) | |
5972 | pci_pool_destroy (ioa_cfg->ipr_cmd_pool); | |
5973 | ||
5974 | ioa_cfg->ipr_cmd_pool = NULL; | |
5975 | } | |
5976 | ||
5977 | /** | |
5978 | * ipr_free_mem - Frees memory allocated for an adapter | |
5979 | * @ioa_cfg: ioa cfg struct | |
5980 | * | |
5981 | * Return value: | |
5982 | * nothing | |
5983 | **/ | |
5984 | static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) | |
5985 | { | |
5986 | int i; | |
5987 | ||
5988 | kfree(ioa_cfg->res_entries); | |
5989 | pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs), | |
5990 | ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); | |
5991 | ipr_free_cmd_blks(ioa_cfg); | |
5992 | pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, | |
5993 | ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); | |
5994 | pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_config_table), | |
5995 | ioa_cfg->cfg_table, | |
5996 | ioa_cfg->cfg_table_dma); | |
5997 | ||
5998 | for (i = 0; i < IPR_NUM_HCAMS; i++) { | |
5999 | pci_free_consistent(ioa_cfg->pdev, | |
6000 | sizeof(struct ipr_hostrcb), | |
6001 | ioa_cfg->hostrcb[i], | |
6002 | ioa_cfg->hostrcb_dma[i]); | |
6003 | } | |
6004 | ||
6005 | ipr_free_dump(ioa_cfg); | |
1da177e4 LT |
6006 | kfree(ioa_cfg->trace); |
6007 | } | |
6008 | ||
6009 | /** | |
6010 | * ipr_free_all_resources - Free all allocated resources for an adapter. | |
6011 | * @ipr_cmd: ipr command struct | |
6012 | * | |
6013 | * This function frees all allocated resources for the | |
6014 | * specified adapter. | |
6015 | * | |
6016 | * Return value: | |
6017 | * none | |
6018 | **/ | |
6019 | static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) | |
6020 | { | |
6021 | struct pci_dev *pdev = ioa_cfg->pdev; | |
6022 | ||
6023 | ENTER; | |
6024 | free_irq(pdev->irq, ioa_cfg); | |
6025 | iounmap(ioa_cfg->hdw_dma_regs); | |
6026 | pci_release_regions(pdev); | |
6027 | ipr_free_mem(ioa_cfg); | |
6028 | scsi_host_put(ioa_cfg->host); | |
6029 | pci_disable_device(pdev); | |
6030 | LEAVE; | |
6031 | } | |
6032 | ||
6033 | /** | |
6034 | * ipr_alloc_cmd_blks - Allocate command blocks for an adapter | |
6035 | * @ioa_cfg: ioa config struct | |
6036 | * | |
6037 | * Return value: | |
6038 | * 0 on success / -ENOMEM on allocation failure | |
6039 | **/ | |
6040 | static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) | |
6041 | { | |
6042 | struct ipr_cmnd *ipr_cmd; | |
6043 | struct ipr_ioarcb *ioarcb; | |
6044 | dma_addr_t dma_addr; | |
6045 | int i; | |
6046 | ||
6047 | ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev, | |
6048 | sizeof(struct ipr_cmnd), 8, 0); | |
6049 | ||
6050 | if (!ioa_cfg->ipr_cmd_pool) | |
6051 | return -ENOMEM; | |
6052 | ||
6053 | for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { | |
6054 | ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, SLAB_KERNEL, &dma_addr); | |
6055 | ||
6056 | if (!ipr_cmd) { | |
6057 | ipr_free_cmd_blks(ioa_cfg); | |
6058 | return -ENOMEM; | |
6059 | } | |
6060 | ||
6061 | memset(ipr_cmd, 0, sizeof(*ipr_cmd)); | |
6062 | ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; | |
6063 | ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; | |
6064 | ||
6065 | ioarcb = &ipr_cmd->ioarcb; | |
6066 | ioarcb->ioarcb_host_pci_addr = cpu_to_be32(dma_addr); | |
6067 | ioarcb->host_response_handle = cpu_to_be32(i << 2); | |
6068 | ioarcb->write_ioadl_addr = | |
6069 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl)); | |
6070 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; | |
6071 | ioarcb->ioasa_host_pci_addr = | |
6072 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa)); | |
6073 | ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); | |
6074 | ipr_cmd->cmd_index = i; | |
6075 | ipr_cmd->ioa_cfg = ioa_cfg; | |
6076 | ipr_cmd->sense_buffer_dma = dma_addr + | |
6077 | offsetof(struct ipr_cmnd, sense_buffer); | |
6078 | ||
6079 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
6080 | } | |
6081 | ||
6082 | return 0; | |
6083 | } | |
6084 | ||
6085 | /** | |
6086 | * ipr_alloc_mem - Allocate memory for an adapter | |
6087 | * @ioa_cfg: ioa config struct | |
6088 | * | |
6089 | * Return value: | |
6090 | * 0 on success / non-zero for error | |
6091 | **/ | |
6092 | static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) | |
6093 | { | |
6094 | struct pci_dev *pdev = ioa_cfg->pdev; | |
6095 | int i, rc = -ENOMEM; | |
6096 | ||
6097 | ENTER; | |
0bc42e35 | 6098 | ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) * |
1da177e4 LT |
6099 | IPR_MAX_PHYSICAL_DEVS, GFP_KERNEL); |
6100 | ||
6101 | if (!ioa_cfg->res_entries) | |
6102 | goto out; | |
6103 | ||
1da177e4 LT |
6104 | for (i = 0; i < IPR_MAX_PHYSICAL_DEVS; i++) |
6105 | list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); | |
6106 | ||
6107 | ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev, | |
6108 | sizeof(struct ipr_misc_cbs), | |
6109 | &ioa_cfg->vpd_cbs_dma); | |
6110 | ||
6111 | if (!ioa_cfg->vpd_cbs) | |
6112 | goto out_free_res_entries; | |
6113 | ||
6114 | if (ipr_alloc_cmd_blks(ioa_cfg)) | |
6115 | goto out_free_vpd_cbs; | |
6116 | ||
6117 | ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev, | |
6118 | sizeof(u32) * IPR_NUM_CMD_BLKS, | |
6119 | &ioa_cfg->host_rrq_dma); | |
6120 | ||
6121 | if (!ioa_cfg->host_rrq) | |
6122 | goto out_ipr_free_cmd_blocks; | |
6123 | ||
6124 | ioa_cfg->cfg_table = pci_alloc_consistent(ioa_cfg->pdev, | |
6125 | sizeof(struct ipr_config_table), | |
6126 | &ioa_cfg->cfg_table_dma); | |
6127 | ||
6128 | if (!ioa_cfg->cfg_table) | |
6129 | goto out_free_host_rrq; | |
6130 | ||
6131 | for (i = 0; i < IPR_NUM_HCAMS; i++) { | |
6132 | ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev, | |
6133 | sizeof(struct ipr_hostrcb), | |
6134 | &ioa_cfg->hostrcb_dma[i]); | |
6135 | ||
6136 | if (!ioa_cfg->hostrcb[i]) | |
6137 | goto out_free_hostrcb_dma; | |
6138 | ||
6139 | ioa_cfg->hostrcb[i]->hostrcb_dma = | |
6140 | ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); | |
6141 | list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q); | |
6142 | } | |
6143 | ||
0bc42e35 | 6144 | ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) * |
1da177e4 LT |
6145 | IPR_NUM_TRACE_ENTRIES, GFP_KERNEL); |
6146 | ||
6147 | if (!ioa_cfg->trace) | |
6148 | goto out_free_hostrcb_dma; | |
6149 | ||
1da177e4 LT |
6150 | rc = 0; |
6151 | out: | |
6152 | LEAVE; | |
6153 | return rc; | |
6154 | ||
6155 | out_free_hostrcb_dma: | |
6156 | while (i-- > 0) { | |
6157 | pci_free_consistent(pdev, sizeof(struct ipr_hostrcb), | |
6158 | ioa_cfg->hostrcb[i], | |
6159 | ioa_cfg->hostrcb_dma[i]); | |
6160 | } | |
6161 | pci_free_consistent(pdev, sizeof(struct ipr_config_table), | |
6162 | ioa_cfg->cfg_table, ioa_cfg->cfg_table_dma); | |
6163 | out_free_host_rrq: | |
6164 | pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, | |
6165 | ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); | |
6166 | out_ipr_free_cmd_blocks: | |
6167 | ipr_free_cmd_blks(ioa_cfg); | |
6168 | out_free_vpd_cbs: | |
6169 | pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs), | |
6170 | ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); | |
6171 | out_free_res_entries: | |
6172 | kfree(ioa_cfg->res_entries); | |
6173 | goto out; | |
6174 | } | |
6175 | ||
6176 | /** | |
6177 | * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values | |
6178 | * @ioa_cfg: ioa config struct | |
6179 | * | |
6180 | * Return value: | |
6181 | * none | |
6182 | **/ | |
6183 | static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) | |
6184 | { | |
6185 | int i; | |
6186 | ||
6187 | for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { | |
6188 | ioa_cfg->bus_attr[i].bus = i; | |
6189 | ioa_cfg->bus_attr[i].qas_enabled = 0; | |
6190 | ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; | |
6191 | if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) | |
6192 | ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; | |
6193 | else | |
6194 | ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; | |
6195 | } | |
6196 | } | |
6197 | ||
6198 | /** | |
6199 | * ipr_init_ioa_cfg - Initialize IOA config struct | |
6200 | * @ioa_cfg: ioa config struct | |
6201 | * @host: scsi host struct | |
6202 | * @pdev: PCI dev struct | |
6203 | * | |
6204 | * Return value: | |
6205 | * none | |
6206 | **/ | |
6207 | static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, | |
6208 | struct Scsi_Host *host, struct pci_dev *pdev) | |
6209 | { | |
6210 | const struct ipr_interrupt_offsets *p; | |
6211 | struct ipr_interrupts *t; | |
6212 | void __iomem *base; | |
6213 | ||
6214 | ioa_cfg->host = host; | |
6215 | ioa_cfg->pdev = pdev; | |
6216 | ioa_cfg->log_level = ipr_log_level; | |
3d1d0da6 | 6217 | ioa_cfg->doorbell = IPR_DOORBELL; |
32d29776 BK |
6218 | if (!ipr_auto_create) |
6219 | ioa_cfg->doorbell |= IPR_RUNTIME_RESET; | |
1da177e4 LT |
6220 | sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER); |
6221 | sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL); | |
6222 | sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL); | |
6223 | sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL); | |
6224 | sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); | |
6225 | sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); | |
6226 | sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); | |
6227 | sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); | |
6228 | ||
6229 | INIT_LIST_HEAD(&ioa_cfg->free_q); | |
6230 | INIT_LIST_HEAD(&ioa_cfg->pending_q); | |
6231 | INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q); | |
6232 | INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q); | |
6233 | INIT_LIST_HEAD(&ioa_cfg->free_res_q); | |
6234 | INIT_LIST_HEAD(&ioa_cfg->used_res_q); | |
6235 | INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread, ioa_cfg); | |
6236 | init_waitqueue_head(&ioa_cfg->reset_wait_q); | |
6237 | ioa_cfg->sdt_state = INACTIVE; | |
62275040 BK |
6238 | if (ipr_enable_cache) |
6239 | ioa_cfg->cache_state = CACHE_ENABLED; | |
6240 | else | |
6241 | ioa_cfg->cache_state = CACHE_DISABLED; | |
1da177e4 LT |
6242 | |
6243 | ipr_initialize_bus_attr(ioa_cfg); | |
6244 | ||
6245 | host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; | |
6246 | host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; | |
6247 | host->max_channel = IPR_MAX_BUS_TO_SCAN; | |
6248 | host->unique_id = host->host_no; | |
6249 | host->max_cmd_len = IPR_MAX_CDB_LEN; | |
6250 | pci_set_drvdata(pdev, ioa_cfg); | |
6251 | ||
6252 | p = &ioa_cfg->chip_cfg->regs; | |
6253 | t = &ioa_cfg->regs; | |
6254 | base = ioa_cfg->hdw_dma_regs; | |
6255 | ||
6256 | t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; | |
6257 | t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; | |
6258 | t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; | |
6259 | t->clr_interrupt_reg = base + p->clr_interrupt_reg; | |
6260 | t->sense_interrupt_reg = base + p->sense_interrupt_reg; | |
6261 | t->ioarrin_reg = base + p->ioarrin_reg; | |
6262 | t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; | |
6263 | t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; | |
6264 | t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; | |
6265 | } | |
6266 | ||
6267 | /** | |
6268 | * ipr_get_chip_cfg - Find adapter chip configuration | |
6269 | * @dev_id: PCI device id struct | |
6270 | * | |
6271 | * Return value: | |
6272 | * ptr to chip config on success / NULL on failure | |
6273 | **/ | |
6274 | static const struct ipr_chip_cfg_t * __devinit | |
6275 | ipr_get_chip_cfg(const struct pci_device_id *dev_id) | |
6276 | { | |
6277 | int i; | |
6278 | ||
6279 | if (dev_id->driver_data) | |
6280 | return (const struct ipr_chip_cfg_t *)dev_id->driver_data; | |
6281 | ||
6282 | for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) | |
6283 | if (ipr_chip[i].vendor == dev_id->vendor && | |
6284 | ipr_chip[i].device == dev_id->device) | |
6285 | return ipr_chip[i].cfg; | |
6286 | return NULL; | |
6287 | } | |
6288 | ||
6289 | /** | |
6290 | * ipr_probe_ioa - Allocates memory and does first stage of initialization | |
6291 | * @pdev: PCI device struct | |
6292 | * @dev_id: PCI device id struct | |
6293 | * | |
6294 | * Return value: | |
6295 | * 0 on success / non-zero on failure | |
6296 | **/ | |
6297 | static int __devinit ipr_probe_ioa(struct pci_dev *pdev, | |
6298 | const struct pci_device_id *dev_id) | |
6299 | { | |
6300 | struct ipr_ioa_cfg *ioa_cfg; | |
6301 | struct Scsi_Host *host; | |
6302 | unsigned long ipr_regs_pci; | |
6303 | void __iomem *ipr_regs; | |
6304 | u32 rc = PCIBIOS_SUCCESSFUL; | |
ce155cce | 6305 | volatile u32 mask, uproc; |
1da177e4 LT |
6306 | |
6307 | ENTER; | |
6308 | ||
6309 | if ((rc = pci_enable_device(pdev))) { | |
6310 | dev_err(&pdev->dev, "Cannot enable adapter\n"); | |
6311 | goto out; | |
6312 | } | |
6313 | ||
6314 | dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq); | |
6315 | ||
6316 | host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); | |
6317 | ||
6318 | if (!host) { | |
6319 | dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n"); | |
6320 | rc = -ENOMEM; | |
6321 | goto out_disable; | |
6322 | } | |
6323 | ||
6324 | ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; | |
6325 | memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); | |
6326 | ||
6327 | ioa_cfg->chip_cfg = ipr_get_chip_cfg(dev_id); | |
6328 | ||
6329 | if (!ioa_cfg->chip_cfg) { | |
6330 | dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n", | |
6331 | dev_id->vendor, dev_id->device); | |
6332 | goto out_scsi_host_put; | |
6333 | } | |
6334 | ||
6335 | ipr_regs_pci = pci_resource_start(pdev, 0); | |
6336 | ||
6337 | rc = pci_request_regions(pdev, IPR_NAME); | |
6338 | if (rc < 0) { | |
6339 | dev_err(&pdev->dev, | |
6340 | "Couldn't register memory range of registers\n"); | |
6341 | goto out_scsi_host_put; | |
6342 | } | |
6343 | ||
6344 | ipr_regs = ioremap(ipr_regs_pci, pci_resource_len(pdev, 0)); | |
6345 | ||
6346 | if (!ipr_regs) { | |
6347 | dev_err(&pdev->dev, | |
6348 | "Couldn't map memory range of registers\n"); | |
6349 | rc = -ENOMEM; | |
6350 | goto out_release_regions; | |
6351 | } | |
6352 | ||
6353 | ioa_cfg->hdw_dma_regs = ipr_regs; | |
6354 | ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; | |
6355 | ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; | |
6356 | ||
6357 | ipr_init_ioa_cfg(ioa_cfg, host, pdev); | |
6358 | ||
6359 | pci_set_master(pdev); | |
6360 | ||
6361 | rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | |
6362 | if (rc < 0) { | |
6363 | dev_err(&pdev->dev, "Failed to set PCI DMA mask\n"); | |
6364 | goto cleanup_nomem; | |
6365 | } | |
6366 | ||
6367 | rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, | |
6368 | ioa_cfg->chip_cfg->cache_line_size); | |
6369 | ||
6370 | if (rc != PCIBIOS_SUCCESSFUL) { | |
6371 | dev_err(&pdev->dev, "Write of cache line size failed\n"); | |
6372 | rc = -EIO; | |
6373 | goto cleanup_nomem; | |
6374 | } | |
6375 | ||
6376 | /* Save away PCI config space for use following IOA reset */ | |
6377 | rc = pci_save_state(pdev); | |
6378 | ||
6379 | if (rc != PCIBIOS_SUCCESSFUL) { | |
6380 | dev_err(&pdev->dev, "Failed to save PCI config space\n"); | |
6381 | rc = -EIO; | |
6382 | goto cleanup_nomem; | |
6383 | } | |
6384 | ||
6385 | if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) | |
6386 | goto cleanup_nomem; | |
6387 | ||
6388 | if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) | |
6389 | goto cleanup_nomem; | |
6390 | ||
6391 | rc = ipr_alloc_mem(ioa_cfg); | |
6392 | if (rc < 0) { | |
6393 | dev_err(&pdev->dev, | |
6394 | "Couldn't allocate enough memory for device driver!\n"); | |
6395 | goto cleanup_nomem; | |
6396 | } | |
6397 | ||
ce155cce BK |
6398 | /* |
6399 | * If HRRQ updated interrupt is not masked, or reset alert is set, | |
6400 | * the card is in an unknown state and needs a hard reset | |
6401 | */ | |
6402 | mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
6403 | uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg); | |
6404 | if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) | |
6405 | ioa_cfg->needs_hard_reset = 1; | |
6406 | ||
1da177e4 LT |
6407 | ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); |
6408 | rc = request_irq(pdev->irq, ipr_isr, SA_SHIRQ, IPR_NAME, ioa_cfg); | |
6409 | ||
6410 | if (rc) { | |
6411 | dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n", | |
6412 | pdev->irq, rc); | |
6413 | goto cleanup_nolog; | |
6414 | } | |
6415 | ||
6416 | spin_lock(&ipr_driver_lock); | |
6417 | list_add_tail(&ioa_cfg->queue, &ipr_ioa_head); | |
6418 | spin_unlock(&ipr_driver_lock); | |
6419 | ||
6420 | LEAVE; | |
6421 | out: | |
6422 | return rc; | |
6423 | ||
6424 | cleanup_nolog: | |
6425 | ipr_free_mem(ioa_cfg); | |
6426 | cleanup_nomem: | |
6427 | iounmap(ipr_regs); | |
6428 | out_release_regions: | |
6429 | pci_release_regions(pdev); | |
6430 | out_scsi_host_put: | |
6431 | scsi_host_put(host); | |
6432 | out_disable: | |
6433 | pci_disable_device(pdev); | |
6434 | goto out; | |
6435 | } | |
6436 | ||
6437 | /** | |
6438 | * ipr_scan_vsets - Scans for VSET devices | |
6439 | * @ioa_cfg: ioa config struct | |
6440 | * | |
6441 | * Description: Since the VSET resources do not follow SAM in that we can have | |
6442 | * sparse LUNs with no LUN 0, we have to scan for these ourselves. | |
6443 | * | |
6444 | * Return value: | |
6445 | * none | |
6446 | **/ | |
6447 | static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg) | |
6448 | { | |
6449 | int target, lun; | |
6450 | ||
6451 | for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++) | |
6452 | for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ ) | |
6453 | scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun); | |
6454 | } | |
6455 | ||
6456 | /** | |
6457 | * ipr_initiate_ioa_bringdown - Bring down an adapter | |
6458 | * @ioa_cfg: ioa config struct | |
6459 | * @shutdown_type: shutdown type | |
6460 | * | |
6461 | * Description: This function will initiate bringing down the adapter. | |
6462 | * This consists of issuing an IOA shutdown to the adapter | |
6463 | * to flush the cache, and running BIST. | |
6464 | * If the caller needs to wait on the completion of the reset, | |
6465 | * the caller must sleep on the reset_wait_q. | |
6466 | * | |
6467 | * Return value: | |
6468 | * none | |
6469 | **/ | |
6470 | static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, | |
6471 | enum ipr_shutdown_type shutdown_type) | |
6472 | { | |
6473 | ENTER; | |
6474 | if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) | |
6475 | ioa_cfg->sdt_state = ABORT_DUMP; | |
6476 | ioa_cfg->reset_retries = 0; | |
6477 | ioa_cfg->in_ioa_bringdown = 1; | |
6478 | ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); | |
6479 | LEAVE; | |
6480 | } | |
6481 | ||
6482 | /** | |
6483 | * __ipr_remove - Remove a single adapter | |
6484 | * @pdev: pci device struct | |
6485 | * | |
6486 | * Adapter hot plug remove entry point. | |
6487 | * | |
6488 | * Return value: | |
6489 | * none | |
6490 | **/ | |
6491 | static void __ipr_remove(struct pci_dev *pdev) | |
6492 | { | |
6493 | unsigned long host_lock_flags = 0; | |
6494 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
6495 | ENTER; | |
6496 | ||
6497 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); | |
6498 | ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
6499 | ||
6500 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
6501 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
5cbf5eae | 6502 | flush_scheduled_work(); |
1da177e4 LT |
6503 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); |
6504 | ||
6505 | spin_lock(&ipr_driver_lock); | |
6506 | list_del(&ioa_cfg->queue); | |
6507 | spin_unlock(&ipr_driver_lock); | |
6508 | ||
6509 | if (ioa_cfg->sdt_state == ABORT_DUMP) | |
6510 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; | |
6511 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
6512 | ||
6513 | ipr_free_all_resources(ioa_cfg); | |
6514 | ||
6515 | LEAVE; | |
6516 | } | |
6517 | ||
6518 | /** | |
6519 | * ipr_remove - IOA hot plug remove entry point | |
6520 | * @pdev: pci device struct | |
6521 | * | |
6522 | * Adapter hot plug remove entry point. | |
6523 | * | |
6524 | * Return value: | |
6525 | * none | |
6526 | **/ | |
6527 | static void ipr_remove(struct pci_dev *pdev) | |
6528 | { | |
6529 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
6530 | ||
6531 | ENTER; | |
6532 | ||
1da177e4 LT |
6533 | ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj, |
6534 | &ipr_trace_attr); | |
6535 | ipr_remove_dump_file(&ioa_cfg->host->shost_classdev.kobj, | |
6536 | &ipr_dump_attr); | |
6537 | scsi_remove_host(ioa_cfg->host); | |
6538 | ||
6539 | __ipr_remove(pdev); | |
6540 | ||
6541 | LEAVE; | |
6542 | } | |
6543 | ||
6544 | /** | |
6545 | * ipr_probe - Adapter hot plug add entry point | |
6546 | * | |
6547 | * Return value: | |
6548 | * 0 on success / non-zero on failure | |
6549 | **/ | |
6550 | static int __devinit ipr_probe(struct pci_dev *pdev, | |
6551 | const struct pci_device_id *dev_id) | |
6552 | { | |
6553 | struct ipr_ioa_cfg *ioa_cfg; | |
6554 | int rc; | |
6555 | ||
6556 | rc = ipr_probe_ioa(pdev, dev_id); | |
6557 | ||
6558 | if (rc) | |
6559 | return rc; | |
6560 | ||
6561 | ioa_cfg = pci_get_drvdata(pdev); | |
6562 | rc = ipr_probe_ioa_part2(ioa_cfg); | |
6563 | ||
6564 | if (rc) { | |
6565 | __ipr_remove(pdev); | |
6566 | return rc; | |
6567 | } | |
6568 | ||
6569 | rc = scsi_add_host(ioa_cfg->host, &pdev->dev); | |
6570 | ||
6571 | if (rc) { | |
6572 | __ipr_remove(pdev); | |
6573 | return rc; | |
6574 | } | |
6575 | ||
6576 | rc = ipr_create_trace_file(&ioa_cfg->host->shost_classdev.kobj, | |
6577 | &ipr_trace_attr); | |
6578 | ||
6579 | if (rc) { | |
6580 | scsi_remove_host(ioa_cfg->host); | |
6581 | __ipr_remove(pdev); | |
6582 | return rc; | |
6583 | } | |
6584 | ||
6585 | rc = ipr_create_dump_file(&ioa_cfg->host->shost_classdev.kobj, | |
6586 | &ipr_dump_attr); | |
6587 | ||
6588 | if (rc) { | |
6589 | ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj, | |
6590 | &ipr_trace_attr); | |
6591 | scsi_remove_host(ioa_cfg->host); | |
6592 | __ipr_remove(pdev); | |
6593 | return rc; | |
6594 | } | |
6595 | ||
6596 | scsi_scan_host(ioa_cfg->host); | |
6597 | ipr_scan_vsets(ioa_cfg); | |
6598 | scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN); | |
6599 | ioa_cfg->allow_ml_add_del = 1; | |
11cd8f12 | 6600 | ioa_cfg->host->max_channel = IPR_VSET_BUS; |
1da177e4 LT |
6601 | schedule_work(&ioa_cfg->work_q); |
6602 | return 0; | |
6603 | } | |
6604 | ||
6605 | /** | |
6606 | * ipr_shutdown - Shutdown handler. | |
d18c3db5 | 6607 | * @pdev: pci device struct |
1da177e4 LT |
6608 | * |
6609 | * This function is invoked upon system shutdown/reboot. It will issue | |
6610 | * an adapter shutdown to the adapter to flush the write cache. | |
6611 | * | |
6612 | * Return value: | |
6613 | * none | |
6614 | **/ | |
d18c3db5 | 6615 | static void ipr_shutdown(struct pci_dev *pdev) |
1da177e4 | 6616 | { |
d18c3db5 | 6617 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
1da177e4 LT |
6618 | unsigned long lock_flags = 0; |
6619 | ||
6620 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
6621 | ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
6622 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
6623 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
6624 | } | |
6625 | ||
6626 | static struct pci_device_id ipr_pci_table[] __devinitdata = { | |
6627 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, | |
6628 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, | |
6629 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
6630 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, | |
6631 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, | |
6632 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
6633 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, | |
6634 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, | |
6635 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
6636 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, | |
6637 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, | |
6638 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
6639 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, | |
6640 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, | |
6641 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
6642 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, | |
6643 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, | |
6644 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
6645 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, | |
6646 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, | |
6647 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
86f51436 BK |
6648 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
6649 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, | |
6650 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
6651 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, | |
6652 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, | |
6653 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
6654 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, | |
6655 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, | |
6656 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
6657 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, | |
6658 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, | |
6659 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
6660 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, | |
6661 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, | |
6662 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
1da177e4 LT |
6663 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, |
6664 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, | |
6665 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] }, | |
6666 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, | |
6667 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, | |
6668 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] }, | |
86f51436 BK |
6669 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
6670 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, | |
6671 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] }, | |
1da177e4 LT |
6672 | { } |
6673 | }; | |
6674 | MODULE_DEVICE_TABLE(pci, ipr_pci_table); | |
6675 | ||
f8a88b19 LV |
6676 | static struct pci_error_handlers ipr_err_handler = { |
6677 | .error_detected = ipr_pci_error_detected, | |
6678 | .slot_reset = ipr_pci_slot_reset, | |
6679 | }; | |
6680 | ||
1da177e4 LT |
6681 | static struct pci_driver ipr_driver = { |
6682 | .name = IPR_NAME, | |
6683 | .id_table = ipr_pci_table, | |
6684 | .probe = ipr_probe, | |
6685 | .remove = ipr_remove, | |
d18c3db5 | 6686 | .shutdown = ipr_shutdown, |
f8a88b19 | 6687 | .err_handler = &ipr_err_handler, |
1da177e4 LT |
6688 | }; |
6689 | ||
6690 | /** | |
6691 | * ipr_init - Module entry point | |
6692 | * | |
6693 | * Return value: | |
6694 | * 0 on success / negative value on failure | |
6695 | **/ | |
6696 | static int __init ipr_init(void) | |
6697 | { | |
6698 | ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", | |
6699 | IPR_DRIVER_VERSION, IPR_DRIVER_DATE); | |
6700 | ||
6701 | return pci_module_init(&ipr_driver); | |
6702 | } | |
6703 | ||
6704 | /** | |
6705 | * ipr_exit - Module unload | |
6706 | * | |
6707 | * Module unload entry point. | |
6708 | * | |
6709 | * Return value: | |
6710 | * none | |
6711 | **/ | |
6712 | static void __exit ipr_exit(void) | |
6713 | { | |
6714 | pci_unregister_driver(&ipr_driver); | |
6715 | } | |
6716 | ||
6717 | module_init(ipr_init); | |
6718 | module_exit(ipr_exit); |