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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 | ||
1da177e4 LT |
57 | #include <linux/fs.h> |
58 | #include <linux/init.h> | |
59 | #include <linux/types.h> | |
60 | #include <linux/errno.h> | |
61 | #include <linux/kernel.h> | |
62 | #include <linux/ioport.h> | |
63 | #include <linux/delay.h> | |
64 | #include <linux/pci.h> | |
65 | #include <linux/wait.h> | |
66 | #include <linux/spinlock.h> | |
67 | #include <linux/sched.h> | |
68 | #include <linux/interrupt.h> | |
69 | #include <linux/blkdev.h> | |
70 | #include <linux/firmware.h> | |
71 | #include <linux/module.h> | |
72 | #include <linux/moduleparam.h> | |
35a39691 | 73 | #include <linux/libata.h> |
1da177e4 LT |
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> | |
35a39691 | 82 | #include <scsi/scsi_transport.h> |
1da177e4 LT |
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[] = { | |
60e7486b | 101 | { /* Gemstone, Citrine, Obsidian, and Obsidian-E */ |
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 | 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] }, | |
60e7486b | 138 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, &ipr_chip_cfg[0] }, |
1da177e4 LT |
139 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, &ipr_chip_cfg[1] }, |
140 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, &ipr_chip_cfg[1] } | |
141 | }; | |
142 | ||
143 | static int ipr_max_bus_speeds [] = { | |
144 | IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE | |
145 | }; | |
146 | ||
147 | MODULE_AUTHOR("Brian King <brking@us.ibm.com>"); | |
148 | MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver"); | |
149 | module_param_named(max_speed, ipr_max_speed, uint, 0); | |
150 | MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320"); | |
151 | module_param_named(log_level, ipr_log_level, uint, 0); | |
152 | MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver"); | |
153 | module_param_named(testmode, ipr_testmode, int, 0); | |
154 | MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations"); | |
155 | module_param_named(fastfail, ipr_fastfail, int, 0); | |
156 | MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries"); | |
157 | module_param_named(transop_timeout, ipr_transop_timeout, int, 0); | |
158 | MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)"); | |
62275040 | 159 | module_param_named(enable_cache, ipr_enable_cache, int, 0); |
160 | MODULE_PARM_DESC(enable_cache, "Enable adapter's non-volatile write cache (default: 1)"); | |
d3c74871 | 161 | module_param_named(debug, ipr_debug, int, 0); |
162 | MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)"); | |
32d29776 | 163 | module_param_named(auto_create, ipr_auto_create, int, 0); |
164 | MODULE_PARM_DESC(auto_create, "Auto-create single device RAID 0 arrays when initialized (default: 1)"); | |
1da177e4 LT |
165 | MODULE_LICENSE("GPL"); |
166 | MODULE_VERSION(IPR_DRIVER_VERSION); | |
167 | ||
1da177e4 LT |
168 | /* A constant array of IOASCs/URCs/Error Messages */ |
169 | static const | |
170 | struct ipr_error_table_t ipr_error_table[] = { | |
171 | {0x00000000, 1, 1, | |
172 | "8155: An unknown error was received"}, | |
173 | {0x00330000, 0, 0, | |
174 | "Soft underlength error"}, | |
175 | {0x005A0000, 0, 0, | |
176 | "Command to be cancelled not found"}, | |
177 | {0x00808000, 0, 0, | |
178 | "Qualified success"}, | |
179 | {0x01080000, 1, 1, | |
180 | "FFFE: Soft device bus error recovered by the IOA"}, | |
896bbd21 BK |
181 | {0x01088100, 0, 1, |
182 | "4101: Soft device bus fabric error"}, | |
1da177e4 LT |
183 | {0x01170600, 0, 1, |
184 | "FFF9: Device sector reassign successful"}, | |
185 | {0x01170900, 0, 1, | |
186 | "FFF7: Media error recovered by device rewrite procedures"}, | |
187 | {0x01180200, 0, 1, | |
188 | "7001: IOA sector reassignment successful"}, | |
189 | {0x01180500, 0, 1, | |
190 | "FFF9: Soft media error. Sector reassignment recommended"}, | |
191 | {0x01180600, 0, 1, | |
192 | "FFF7: Media error recovered by IOA rewrite procedures"}, | |
193 | {0x01418000, 0, 1, | |
194 | "FF3D: Soft PCI bus error recovered by the IOA"}, | |
195 | {0x01440000, 1, 1, | |
196 | "FFF6: Device hardware error recovered by the IOA"}, | |
197 | {0x01448100, 0, 1, | |
198 | "FFF6: Device hardware error recovered by the device"}, | |
199 | {0x01448200, 1, 1, | |
200 | "FF3D: Soft IOA error recovered by the IOA"}, | |
201 | {0x01448300, 0, 1, | |
202 | "FFFA: Undefined device response recovered by the IOA"}, | |
203 | {0x014A0000, 1, 1, | |
204 | "FFF6: Device bus error, message or command phase"}, | |
35a39691 BK |
205 | {0x014A8000, 0, 1, |
206 | "FFFE: Task Management Function failed"}, | |
1da177e4 LT |
207 | {0x015D0000, 0, 1, |
208 | "FFF6: Failure prediction threshold exceeded"}, | |
209 | {0x015D9200, 0, 1, | |
210 | "8009: Impending cache battery pack failure"}, | |
211 | {0x02040400, 0, 0, | |
212 | "34FF: Disk device format in progress"}, | |
213 | {0x023F0000, 0, 0, | |
214 | "Synchronization required"}, | |
215 | {0x024E0000, 0, 0, | |
216 | "No ready, IOA shutdown"}, | |
217 | {0x025A0000, 0, 0, | |
218 | "Not ready, IOA has been shutdown"}, | |
219 | {0x02670100, 0, 1, | |
220 | "3020: Storage subsystem configuration error"}, | |
221 | {0x03110B00, 0, 0, | |
222 | "FFF5: Medium error, data unreadable, recommend reassign"}, | |
223 | {0x03110C00, 0, 0, | |
224 | "7000: Medium error, data unreadable, do not reassign"}, | |
225 | {0x03310000, 0, 1, | |
226 | "FFF3: Disk media format bad"}, | |
227 | {0x04050000, 0, 1, | |
228 | "3002: Addressed device failed to respond to selection"}, | |
229 | {0x04080000, 1, 1, | |
230 | "3100: Device bus error"}, | |
231 | {0x04080100, 0, 1, | |
232 | "3109: IOA timed out a device command"}, | |
233 | {0x04088000, 0, 0, | |
234 | "3120: SCSI bus is not operational"}, | |
896bbd21 BK |
235 | {0x04088100, 0, 1, |
236 | "4100: Hard device bus fabric error"}, | |
1da177e4 LT |
237 | {0x04118000, 0, 1, |
238 | "9000: IOA reserved area data check"}, | |
239 | {0x04118100, 0, 1, | |
240 | "9001: IOA reserved area invalid data pattern"}, | |
241 | {0x04118200, 0, 1, | |
242 | "9002: IOA reserved area LRC error"}, | |
243 | {0x04320000, 0, 1, | |
244 | "102E: Out of alternate sectors for disk storage"}, | |
245 | {0x04330000, 1, 1, | |
246 | "FFF4: Data transfer underlength error"}, | |
247 | {0x04338000, 1, 1, | |
248 | "FFF4: Data transfer overlength error"}, | |
249 | {0x043E0100, 0, 1, | |
250 | "3400: Logical unit failure"}, | |
251 | {0x04408500, 0, 1, | |
252 | "FFF4: Device microcode is corrupt"}, | |
253 | {0x04418000, 1, 1, | |
254 | "8150: PCI bus error"}, | |
255 | {0x04430000, 1, 0, | |
256 | "Unsupported device bus message received"}, | |
257 | {0x04440000, 1, 1, | |
258 | "FFF4: Disk device problem"}, | |
259 | {0x04448200, 1, 1, | |
260 | "8150: Permanent IOA failure"}, | |
261 | {0x04448300, 0, 1, | |
262 | "3010: Disk device returned wrong response to IOA"}, | |
263 | {0x04448400, 0, 1, | |
264 | "8151: IOA microcode error"}, | |
265 | {0x04448500, 0, 0, | |
266 | "Device bus status error"}, | |
267 | {0x04448600, 0, 1, | |
268 | "8157: IOA error requiring IOA reset to recover"}, | |
35a39691 BK |
269 | {0x04448700, 0, 0, |
270 | "ATA device status error"}, | |
1da177e4 LT |
271 | {0x04490000, 0, 0, |
272 | "Message reject received from the device"}, | |
273 | {0x04449200, 0, 1, | |
274 | "8008: A permanent cache battery pack failure occurred"}, | |
275 | {0x0444A000, 0, 1, | |
276 | "9090: Disk unit has been modified after the last known status"}, | |
277 | {0x0444A200, 0, 1, | |
278 | "9081: IOA detected device error"}, | |
279 | {0x0444A300, 0, 1, | |
280 | "9082: IOA detected device error"}, | |
281 | {0x044A0000, 1, 1, | |
282 | "3110: Device bus error, message or command phase"}, | |
35a39691 BK |
283 | {0x044A8000, 1, 1, |
284 | "3110: SAS Command / Task Management Function failed"}, | |
1da177e4 LT |
285 | {0x04670400, 0, 1, |
286 | "9091: Incorrect hardware configuration change has been detected"}, | |
b0df54bb | 287 | {0x04678000, 0, 1, |
288 | "9073: Invalid multi-adapter configuration"}, | |
896bbd21 BK |
289 | {0x04678100, 0, 1, |
290 | "4010: Incorrect connection between cascaded expanders"}, | |
291 | {0x04678200, 0, 1, | |
292 | "4020: Connections exceed IOA design limits"}, | |
293 | {0x04678300, 0, 1, | |
294 | "4030: Incorrect multipath connection"}, | |
295 | {0x04679000, 0, 1, | |
296 | "4110: Unsupported enclosure function"}, | |
1da177e4 LT |
297 | {0x046E0000, 0, 1, |
298 | "FFF4: Command to logical unit failed"}, | |
299 | {0x05240000, 1, 0, | |
300 | "Illegal request, invalid request type or request packet"}, | |
301 | {0x05250000, 0, 0, | |
302 | "Illegal request, invalid resource handle"}, | |
b0df54bb | 303 | {0x05258000, 0, 0, |
304 | "Illegal request, commands not allowed to this device"}, | |
305 | {0x05258100, 0, 0, | |
306 | "Illegal request, command not allowed to a secondary adapter"}, | |
1da177e4 LT |
307 | {0x05260000, 0, 0, |
308 | "Illegal request, invalid field in parameter list"}, | |
309 | {0x05260100, 0, 0, | |
310 | "Illegal request, parameter not supported"}, | |
311 | {0x05260200, 0, 0, | |
312 | "Illegal request, parameter value invalid"}, | |
313 | {0x052C0000, 0, 0, | |
314 | "Illegal request, command sequence error"}, | |
b0df54bb | 315 | {0x052C8000, 1, 0, |
316 | "Illegal request, dual adapter support not enabled"}, | |
1da177e4 LT |
317 | {0x06040500, 0, 1, |
318 | "9031: Array protection temporarily suspended, protection resuming"}, | |
319 | {0x06040600, 0, 1, | |
320 | "9040: Array protection temporarily suspended, protection resuming"}, | |
896bbd21 BK |
321 | {0x06288000, 0, 1, |
322 | "3140: Device bus not ready to ready transition"}, | |
1da177e4 LT |
323 | {0x06290000, 0, 1, |
324 | "FFFB: SCSI bus was reset"}, | |
325 | {0x06290500, 0, 0, | |
326 | "FFFE: SCSI bus transition to single ended"}, | |
327 | {0x06290600, 0, 0, | |
328 | "FFFE: SCSI bus transition to LVD"}, | |
329 | {0x06298000, 0, 1, | |
330 | "FFFB: SCSI bus was reset by another initiator"}, | |
331 | {0x063F0300, 0, 1, | |
332 | "3029: A device replacement has occurred"}, | |
333 | {0x064C8000, 0, 1, | |
334 | "9051: IOA cache data exists for a missing or failed device"}, | |
b0df54bb | 335 | {0x064C8100, 0, 1, |
336 | "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"}, | |
1da177e4 LT |
337 | {0x06670100, 0, 1, |
338 | "9025: Disk unit is not supported at its physical location"}, | |
339 | {0x06670600, 0, 1, | |
340 | "3020: IOA detected a SCSI bus configuration error"}, | |
341 | {0x06678000, 0, 1, | |
342 | "3150: SCSI bus configuration error"}, | |
b0df54bb | 343 | {0x06678100, 0, 1, |
344 | "9074: Asymmetric advanced function disk configuration"}, | |
896bbd21 BK |
345 | {0x06678300, 0, 1, |
346 | "4040: Incomplete multipath connection between IOA and enclosure"}, | |
347 | {0x06678400, 0, 1, | |
348 | "4041: Incomplete multipath connection between enclosure and device"}, | |
349 | {0x06678500, 0, 1, | |
350 | "9075: Incomplete multipath connection between IOA and remote IOA"}, | |
351 | {0x06678600, 0, 1, | |
352 | "9076: Configuration error, missing remote IOA"}, | |
353 | {0x06679100, 0, 1, | |
354 | "4050: Enclosure does not support a required multipath function"}, | |
1da177e4 LT |
355 | {0x06690200, 0, 1, |
356 | "9041: Array protection temporarily suspended"}, | |
357 | {0x06698200, 0, 1, | |
358 | "9042: Corrupt array parity detected on specified device"}, | |
359 | {0x066B0200, 0, 1, | |
360 | "9030: Array no longer protected due to missing or failed disk unit"}, | |
b0df54bb | 361 | {0x066B8000, 0, 1, |
362 | "9071: Link operational transition"}, | |
363 | {0x066B8100, 0, 1, | |
364 | "9072: Link not operational transition"}, | |
1da177e4 LT |
365 | {0x066B8200, 0, 1, |
366 | "9032: Array exposed but still protected"}, | |
896bbd21 BK |
367 | {0x066B9100, 0, 1, |
368 | "4061: Multipath redundancy level got better"}, | |
369 | {0x066B9200, 0, 1, | |
370 | "4060: Multipath redundancy level got worse"}, | |
1da177e4 LT |
371 | {0x07270000, 0, 0, |
372 | "Failure due to other device"}, | |
373 | {0x07278000, 0, 1, | |
374 | "9008: IOA does not support functions expected by devices"}, | |
375 | {0x07278100, 0, 1, | |
376 | "9010: Cache data associated with attached devices cannot be found"}, | |
377 | {0x07278200, 0, 1, | |
378 | "9011: Cache data belongs to devices other than those attached"}, | |
379 | {0x07278400, 0, 1, | |
380 | "9020: Array missing 2 or more devices with only 1 device present"}, | |
381 | {0x07278500, 0, 1, | |
382 | "9021: Array missing 2 or more devices with 2 or more devices present"}, | |
383 | {0x07278600, 0, 1, | |
384 | "9022: Exposed array is missing a required device"}, | |
385 | {0x07278700, 0, 1, | |
386 | "9023: Array member(s) not at required physical locations"}, | |
387 | {0x07278800, 0, 1, | |
388 | "9024: Array not functional due to present hardware configuration"}, | |
389 | {0x07278900, 0, 1, | |
390 | "9026: Array not functional due to present hardware configuration"}, | |
391 | {0x07278A00, 0, 1, | |
392 | "9027: Array is missing a device and parity is out of sync"}, | |
393 | {0x07278B00, 0, 1, | |
394 | "9028: Maximum number of arrays already exist"}, | |
395 | {0x07278C00, 0, 1, | |
396 | "9050: Required cache data cannot be located for a disk unit"}, | |
397 | {0x07278D00, 0, 1, | |
398 | "9052: Cache data exists for a device that has been modified"}, | |
399 | {0x07278F00, 0, 1, | |
400 | "9054: IOA resources not available due to previous problems"}, | |
401 | {0x07279100, 0, 1, | |
402 | "9092: Disk unit requires initialization before use"}, | |
403 | {0x07279200, 0, 1, | |
404 | "9029: Incorrect hardware configuration change has been detected"}, | |
405 | {0x07279600, 0, 1, | |
406 | "9060: One or more disk pairs are missing from an array"}, | |
407 | {0x07279700, 0, 1, | |
408 | "9061: One or more disks are missing from an array"}, | |
409 | {0x07279800, 0, 1, | |
410 | "9062: One or more disks are missing from an array"}, | |
411 | {0x07279900, 0, 1, | |
412 | "9063: Maximum number of functional arrays has been exceeded"}, | |
413 | {0x0B260000, 0, 0, | |
414 | "Aborted command, invalid descriptor"}, | |
415 | {0x0B5A0000, 0, 0, | |
416 | "Command terminated by host"} | |
417 | }; | |
418 | ||
419 | static const struct ipr_ses_table_entry ipr_ses_table[] = { | |
420 | { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 }, | |
421 | { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 }, | |
422 | { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */ | |
423 | { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */ | |
424 | { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */ | |
425 | { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */ | |
426 | { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 }, | |
427 | { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 }, | |
428 | { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, | |
429 | { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, | |
430 | { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 }, | |
431 | { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 }, | |
432 | { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 } | |
433 | }; | |
434 | ||
435 | /* | |
436 | * Function Prototypes | |
437 | */ | |
438 | static int ipr_reset_alert(struct ipr_cmnd *); | |
439 | static void ipr_process_ccn(struct ipr_cmnd *); | |
440 | static void ipr_process_error(struct ipr_cmnd *); | |
441 | static void ipr_reset_ioa_job(struct ipr_cmnd *); | |
442 | static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *, | |
443 | enum ipr_shutdown_type); | |
444 | ||
445 | #ifdef CONFIG_SCSI_IPR_TRACE | |
446 | /** | |
447 | * ipr_trc_hook - Add a trace entry to the driver trace | |
448 | * @ipr_cmd: ipr command struct | |
449 | * @type: trace type | |
450 | * @add_data: additional data | |
451 | * | |
452 | * Return value: | |
453 | * none | |
454 | **/ | |
455 | static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd, | |
456 | u8 type, u32 add_data) | |
457 | { | |
458 | struct ipr_trace_entry *trace_entry; | |
459 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
460 | ||
461 | trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++]; | |
462 | trace_entry->time = jiffies; | |
463 | trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0]; | |
464 | trace_entry->type = type; | |
35a39691 BK |
465 | trace_entry->ata_op_code = ipr_cmd->ioarcb.add_data.u.regs.command; |
466 | trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff; | |
1da177e4 LT |
467 | trace_entry->res_handle = ipr_cmd->ioarcb.res_handle; |
468 | trace_entry->u.add_data = add_data; | |
469 | } | |
470 | #else | |
471 | #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0) | |
472 | #endif | |
473 | ||
474 | /** | |
475 | * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse | |
476 | * @ipr_cmd: ipr command struct | |
477 | * | |
478 | * Return value: | |
479 | * none | |
480 | **/ | |
481 | static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd) | |
482 | { | |
483 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
484 | struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; | |
485 | ||
486 | memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); | |
487 | ioarcb->write_data_transfer_length = 0; | |
488 | ioarcb->read_data_transfer_length = 0; | |
489 | ioarcb->write_ioadl_len = 0; | |
490 | ioarcb->read_ioadl_len = 0; | |
491 | ioasa->ioasc = 0; | |
492 | ioasa->residual_data_len = 0; | |
35a39691 | 493 | ioasa->u.gata.status = 0; |
1da177e4 LT |
494 | |
495 | ipr_cmd->scsi_cmd = NULL; | |
35a39691 | 496 | ipr_cmd->qc = NULL; |
1da177e4 LT |
497 | ipr_cmd->sense_buffer[0] = 0; |
498 | ipr_cmd->dma_use_sg = 0; | |
499 | } | |
500 | ||
501 | /** | |
502 | * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block | |
503 | * @ipr_cmd: ipr command struct | |
504 | * | |
505 | * Return value: | |
506 | * none | |
507 | **/ | |
508 | static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd) | |
509 | { | |
510 | ipr_reinit_ipr_cmnd(ipr_cmd); | |
511 | ipr_cmd->u.scratch = 0; | |
512 | ipr_cmd->sibling = NULL; | |
513 | init_timer(&ipr_cmd->timer); | |
514 | } | |
515 | ||
516 | /** | |
517 | * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block | |
518 | * @ioa_cfg: ioa config struct | |
519 | * | |
520 | * Return value: | |
521 | * pointer to ipr command struct | |
522 | **/ | |
523 | static | |
524 | struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg) | |
525 | { | |
526 | struct ipr_cmnd *ipr_cmd; | |
527 | ||
528 | ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue); | |
529 | list_del(&ipr_cmd->queue); | |
530 | ipr_init_ipr_cmnd(ipr_cmd); | |
531 | ||
532 | return ipr_cmd; | |
533 | } | |
534 | ||
535 | /** | |
536 | * ipr_unmap_sglist - Unmap scatterlist if mapped | |
537 | * @ioa_cfg: ioa config struct | |
538 | * @ipr_cmd: ipr command struct | |
539 | * | |
540 | * Return value: | |
541 | * nothing | |
542 | **/ | |
543 | static void ipr_unmap_sglist(struct ipr_ioa_cfg *ioa_cfg, | |
544 | struct ipr_cmnd *ipr_cmd) | |
545 | { | |
546 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
547 | ||
548 | if (ipr_cmd->dma_use_sg) { | |
549 | if (scsi_cmd->use_sg > 0) { | |
550 | pci_unmap_sg(ioa_cfg->pdev, scsi_cmd->request_buffer, | |
551 | scsi_cmd->use_sg, | |
552 | scsi_cmd->sc_data_direction); | |
553 | } else { | |
554 | pci_unmap_single(ioa_cfg->pdev, ipr_cmd->dma_handle, | |
555 | scsi_cmd->request_bufflen, | |
556 | scsi_cmd->sc_data_direction); | |
557 | } | |
558 | } | |
559 | } | |
560 | ||
561 | /** | |
562 | * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts | |
563 | * @ioa_cfg: ioa config struct | |
564 | * @clr_ints: interrupts to clear | |
565 | * | |
566 | * This function masks all interrupts on the adapter, then clears the | |
567 | * interrupts specified in the mask | |
568 | * | |
569 | * Return value: | |
570 | * none | |
571 | **/ | |
572 | static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg, | |
573 | u32 clr_ints) | |
574 | { | |
575 | volatile u32 int_reg; | |
576 | ||
577 | /* Stop new interrupts */ | |
578 | ioa_cfg->allow_interrupts = 0; | |
579 | ||
580 | /* Set interrupt mask to stop all new interrupts */ | |
581 | writel(~0, ioa_cfg->regs.set_interrupt_mask_reg); | |
582 | ||
583 | /* Clear any pending interrupts */ | |
584 | writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg); | |
585 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
586 | } | |
587 | ||
588 | /** | |
589 | * ipr_save_pcix_cmd_reg - Save PCI-X command register | |
590 | * @ioa_cfg: ioa config struct | |
591 | * | |
592 | * Return value: | |
593 | * 0 on success / -EIO on failure | |
594 | **/ | |
595 | static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) | |
596 | { | |
597 | int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); | |
598 | ||
599 | if (pcix_cmd_reg == 0) { | |
600 | dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); | |
601 | return -EIO; | |
602 | } | |
603 | ||
604 | if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, | |
605 | &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { | |
606 | dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); | |
607 | return -EIO; | |
608 | } | |
609 | ||
610 | ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO; | |
611 | return 0; | |
612 | } | |
613 | ||
614 | /** | |
615 | * ipr_set_pcix_cmd_reg - Setup PCI-X command register | |
616 | * @ioa_cfg: ioa config struct | |
617 | * | |
618 | * Return value: | |
619 | * 0 on success / -EIO on failure | |
620 | **/ | |
621 | static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) | |
622 | { | |
623 | int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); | |
624 | ||
625 | if (pcix_cmd_reg) { | |
626 | if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, | |
627 | ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { | |
628 | dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n"); | |
629 | return -EIO; | |
630 | } | |
631 | } else { | |
632 | dev_err(&ioa_cfg->pdev->dev, | |
633 | "Failed to setup PCI-X command register\n"); | |
634 | return -EIO; | |
635 | } | |
636 | ||
637 | return 0; | |
638 | } | |
639 | ||
35a39691 BK |
640 | /** |
641 | * ipr_sata_eh_done - done function for aborted SATA commands | |
642 | * @ipr_cmd: ipr command struct | |
643 | * | |
644 | * This function is invoked for ops generated to SATA | |
645 | * devices which are being aborted. | |
646 | * | |
647 | * Return value: | |
648 | * none | |
649 | **/ | |
650 | static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd) | |
651 | { | |
652 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
653 | struct ata_queued_cmd *qc = ipr_cmd->qc; | |
654 | struct ipr_sata_port *sata_port = qc->ap->private_data; | |
655 | ||
656 | qc->err_mask |= AC_ERR_OTHER; | |
657 | sata_port->ioasa.status |= ATA_BUSY; | |
658 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
659 | ata_qc_complete(qc); | |
660 | } | |
661 | ||
1da177e4 LT |
662 | /** |
663 | * ipr_scsi_eh_done - mid-layer done function for aborted ops | |
664 | * @ipr_cmd: ipr command struct | |
665 | * | |
666 | * This function is invoked by the interrupt handler for | |
667 | * ops generated by the SCSI mid-layer which are being aborted. | |
668 | * | |
669 | * Return value: | |
670 | * none | |
671 | **/ | |
672 | static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) | |
673 | { | |
674 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
675 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
676 | ||
677 | scsi_cmd->result |= (DID_ERROR << 16); | |
678 | ||
679 | ipr_unmap_sglist(ioa_cfg, ipr_cmd); | |
680 | scsi_cmd->scsi_done(scsi_cmd); | |
681 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
682 | } | |
683 | ||
684 | /** | |
685 | * ipr_fail_all_ops - Fails all outstanding ops. | |
686 | * @ioa_cfg: ioa config struct | |
687 | * | |
688 | * This function fails all outstanding ops. | |
689 | * | |
690 | * Return value: | |
691 | * none | |
692 | **/ | |
693 | static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg) | |
694 | { | |
695 | struct ipr_cmnd *ipr_cmd, *temp; | |
696 | ||
697 | ENTER; | |
698 | list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) { | |
699 | list_del(&ipr_cmd->queue); | |
700 | ||
701 | ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET); | |
702 | ipr_cmd->ioasa.ilid = cpu_to_be32(IPR_DRIVER_ILID); | |
703 | ||
704 | if (ipr_cmd->scsi_cmd) | |
705 | ipr_cmd->done = ipr_scsi_eh_done; | |
35a39691 BK |
706 | else if (ipr_cmd->qc) |
707 | ipr_cmd->done = ipr_sata_eh_done; | |
1da177e4 LT |
708 | |
709 | ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET); | |
710 | del_timer(&ipr_cmd->timer); | |
711 | ipr_cmd->done(ipr_cmd); | |
712 | } | |
713 | ||
714 | LEAVE; | |
715 | } | |
716 | ||
717 | /** | |
718 | * ipr_do_req - Send driver initiated requests. | |
719 | * @ipr_cmd: ipr command struct | |
720 | * @done: done function | |
721 | * @timeout_func: timeout function | |
722 | * @timeout: timeout value | |
723 | * | |
724 | * This function sends the specified command to the adapter with the | |
725 | * timeout given. The done function is invoked on command completion. | |
726 | * | |
727 | * Return value: | |
728 | * none | |
729 | **/ | |
730 | static void ipr_do_req(struct ipr_cmnd *ipr_cmd, | |
731 | void (*done) (struct ipr_cmnd *), | |
732 | void (*timeout_func) (struct ipr_cmnd *), u32 timeout) | |
733 | { | |
734 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
735 | ||
736 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
737 | ||
738 | ipr_cmd->done = done; | |
739 | ||
740 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; | |
741 | ipr_cmd->timer.expires = jiffies + timeout; | |
742 | ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func; | |
743 | ||
744 | add_timer(&ipr_cmd->timer); | |
745 | ||
746 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0); | |
747 | ||
748 | mb(); | |
749 | writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), | |
750 | ioa_cfg->regs.ioarrin_reg); | |
751 | } | |
752 | ||
753 | /** | |
754 | * ipr_internal_cmd_done - Op done function for an internally generated op. | |
755 | * @ipr_cmd: ipr command struct | |
756 | * | |
757 | * This function is the op done function for an internally generated, | |
758 | * blocking op. It simply wakes the sleeping thread. | |
759 | * | |
760 | * Return value: | |
761 | * none | |
762 | **/ | |
763 | static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd) | |
764 | { | |
765 | if (ipr_cmd->sibling) | |
766 | ipr_cmd->sibling = NULL; | |
767 | else | |
768 | complete(&ipr_cmd->completion); | |
769 | } | |
770 | ||
771 | /** | |
772 | * ipr_send_blocking_cmd - Send command and sleep on its completion. | |
773 | * @ipr_cmd: ipr command struct | |
774 | * @timeout_func: function to invoke if command times out | |
775 | * @timeout: timeout | |
776 | * | |
777 | * Return value: | |
778 | * none | |
779 | **/ | |
780 | static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd, | |
781 | void (*timeout_func) (struct ipr_cmnd *ipr_cmd), | |
782 | u32 timeout) | |
783 | { | |
784 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
785 | ||
786 | init_completion(&ipr_cmd->completion); | |
787 | ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout); | |
788 | ||
789 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
790 | wait_for_completion(&ipr_cmd->completion); | |
791 | spin_lock_irq(ioa_cfg->host->host_lock); | |
792 | } | |
793 | ||
794 | /** | |
795 | * ipr_send_hcam - Send an HCAM to the adapter. | |
796 | * @ioa_cfg: ioa config struct | |
797 | * @type: HCAM type | |
798 | * @hostrcb: hostrcb struct | |
799 | * | |
800 | * This function will send a Host Controlled Async command to the adapter. | |
801 | * If HCAMs are currently not allowed to be issued to the adapter, it will | |
802 | * place the hostrcb on the free queue. | |
803 | * | |
804 | * Return value: | |
805 | * none | |
806 | **/ | |
807 | static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type, | |
808 | struct ipr_hostrcb *hostrcb) | |
809 | { | |
810 | struct ipr_cmnd *ipr_cmd; | |
811 | struct ipr_ioarcb *ioarcb; | |
812 | ||
813 | if (ioa_cfg->allow_cmds) { | |
814 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
815 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
816 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q); | |
817 | ||
818 | ipr_cmd->u.hostrcb = hostrcb; | |
819 | ioarcb = &ipr_cmd->ioarcb; | |
820 | ||
821 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
822 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM; | |
823 | ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC; | |
824 | ioarcb->cmd_pkt.cdb[1] = type; | |
825 | ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff; | |
826 | ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff; | |
827 | ||
828 | ioarcb->read_data_transfer_length = cpu_to_be32(sizeof(hostrcb->hcam)); | |
829 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
830 | ipr_cmd->ioadl[0].flags_and_data_len = | |
831 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(hostrcb->hcam)); | |
832 | ipr_cmd->ioadl[0].address = cpu_to_be32(hostrcb->hostrcb_dma); | |
833 | ||
834 | if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE) | |
835 | ipr_cmd->done = ipr_process_ccn; | |
836 | else | |
837 | ipr_cmd->done = ipr_process_error; | |
838 | ||
839 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR); | |
840 | ||
841 | mb(); | |
842 | writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), | |
843 | ioa_cfg->regs.ioarrin_reg); | |
844 | } else { | |
845 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); | |
846 | } | |
847 | } | |
848 | ||
849 | /** | |
850 | * ipr_init_res_entry - Initialize a resource entry struct. | |
851 | * @res: resource entry struct | |
852 | * | |
853 | * Return value: | |
854 | * none | |
855 | **/ | |
856 | static void ipr_init_res_entry(struct ipr_resource_entry *res) | |
857 | { | |
ee0a90fa | 858 | res->needs_sync_complete = 0; |
1da177e4 LT |
859 | res->in_erp = 0; |
860 | res->add_to_ml = 0; | |
861 | res->del_from_ml = 0; | |
862 | res->resetting_device = 0; | |
863 | res->sdev = NULL; | |
35a39691 | 864 | res->sata_port = NULL; |
1da177e4 LT |
865 | } |
866 | ||
867 | /** | |
868 | * ipr_handle_config_change - Handle a config change from the adapter | |
869 | * @ioa_cfg: ioa config struct | |
870 | * @hostrcb: hostrcb | |
871 | * | |
872 | * Return value: | |
873 | * none | |
874 | **/ | |
875 | static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg, | |
876 | struct ipr_hostrcb *hostrcb) | |
877 | { | |
878 | struct ipr_resource_entry *res = NULL; | |
879 | struct ipr_config_table_entry *cfgte; | |
880 | u32 is_ndn = 1; | |
881 | ||
882 | cfgte = &hostrcb->hcam.u.ccn.cfgte; | |
883 | ||
884 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
885 | if (!memcmp(&res->cfgte.res_addr, &cfgte->res_addr, | |
886 | sizeof(cfgte->res_addr))) { | |
887 | is_ndn = 0; | |
888 | break; | |
889 | } | |
890 | } | |
891 | ||
892 | if (is_ndn) { | |
893 | if (list_empty(&ioa_cfg->free_res_q)) { | |
894 | ipr_send_hcam(ioa_cfg, | |
895 | IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, | |
896 | hostrcb); | |
897 | return; | |
898 | } | |
899 | ||
900 | res = list_entry(ioa_cfg->free_res_q.next, | |
901 | struct ipr_resource_entry, queue); | |
902 | ||
903 | list_del(&res->queue); | |
904 | ipr_init_res_entry(res); | |
905 | list_add_tail(&res->queue, &ioa_cfg->used_res_q); | |
906 | } | |
907 | ||
908 | memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry)); | |
909 | ||
910 | if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) { | |
911 | if (res->sdev) { | |
1da177e4 | 912 | res->del_from_ml = 1; |
1121b794 | 913 | res->cfgte.res_handle = IPR_INVALID_RES_HANDLE; |
1da177e4 LT |
914 | if (ioa_cfg->allow_ml_add_del) |
915 | schedule_work(&ioa_cfg->work_q); | |
916 | } else | |
917 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); | |
918 | } else if (!res->sdev) { | |
919 | res->add_to_ml = 1; | |
920 | if (ioa_cfg->allow_ml_add_del) | |
921 | schedule_work(&ioa_cfg->work_q); | |
922 | } | |
923 | ||
924 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); | |
925 | } | |
926 | ||
927 | /** | |
928 | * ipr_process_ccn - Op done function for a CCN. | |
929 | * @ipr_cmd: ipr command struct | |
930 | * | |
931 | * This function is the op done function for a configuration | |
932 | * change notification host controlled async from the adapter. | |
933 | * | |
934 | * Return value: | |
935 | * none | |
936 | **/ | |
937 | static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd) | |
938 | { | |
939 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
940 | struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; | |
941 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
942 | ||
943 | list_del(&hostrcb->queue); | |
944 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
945 | ||
946 | if (ioasc) { | |
947 | if (ioasc != IPR_IOASC_IOA_WAS_RESET) | |
948 | dev_err(&ioa_cfg->pdev->dev, | |
949 | "Host RCB failed with IOASC: 0x%08X\n", ioasc); | |
950 | ||
951 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); | |
952 | } else { | |
953 | ipr_handle_config_change(ioa_cfg, hostrcb); | |
954 | } | |
955 | } | |
956 | ||
957 | /** | |
958 | * ipr_log_vpd - Log the passed VPD to the error log. | |
cfc32139 | 959 | * @vpd: vendor/product id/sn struct |
1da177e4 LT |
960 | * |
961 | * Return value: | |
962 | * none | |
963 | **/ | |
cfc32139 | 964 | static void ipr_log_vpd(struct ipr_vpd *vpd) |
1da177e4 LT |
965 | { |
966 | char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN | |
967 | + IPR_SERIAL_NUM_LEN]; | |
968 | ||
cfc32139 | 969 | memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); |
970 | memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id, | |
1da177e4 LT |
971 | IPR_PROD_ID_LEN); |
972 | buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0'; | |
973 | ipr_err("Vendor/Product ID: %s\n", buffer); | |
974 | ||
cfc32139 | 975 | memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN); |
1da177e4 LT |
976 | buffer[IPR_SERIAL_NUM_LEN] = '\0'; |
977 | ipr_err(" Serial Number: %s\n", buffer); | |
978 | } | |
979 | ||
ee0f05b8 | 980 | /** |
981 | * ipr_log_ext_vpd - Log the passed extended VPD to the error log. | |
982 | * @vpd: vendor/product id/sn/wwn struct | |
983 | * | |
984 | * Return value: | |
985 | * none | |
986 | **/ | |
987 | static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd) | |
988 | { | |
989 | ipr_log_vpd(&vpd->vpd); | |
990 | ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]), | |
991 | be32_to_cpu(vpd->wwid[1])); | |
992 | } | |
993 | ||
994 | /** | |
995 | * ipr_log_enhanced_cache_error - Log a cache error. | |
996 | * @ioa_cfg: ioa config struct | |
997 | * @hostrcb: hostrcb struct | |
998 | * | |
999 | * Return value: | |
1000 | * none | |
1001 | **/ | |
1002 | static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg, | |
1003 | struct ipr_hostrcb *hostrcb) | |
1004 | { | |
1005 | struct ipr_hostrcb_type_12_error *error = | |
1006 | &hostrcb->hcam.u.error.u.type_12_error; | |
1007 | ||
1008 | ipr_err("-----Current Configuration-----\n"); | |
1009 | ipr_err("Cache Directory Card Information:\n"); | |
1010 | ipr_log_ext_vpd(&error->ioa_vpd); | |
1011 | ipr_err("Adapter Card Information:\n"); | |
1012 | ipr_log_ext_vpd(&error->cfc_vpd); | |
1013 | ||
1014 | ipr_err("-----Expected Configuration-----\n"); | |
1015 | ipr_err("Cache Directory Card Information:\n"); | |
1016 | ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd); | |
1017 | ipr_err("Adapter Card Information:\n"); | |
1018 | ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd); | |
1019 | ||
1020 | ipr_err("Additional IOA Data: %08X %08X %08X\n", | |
1021 | be32_to_cpu(error->ioa_data[0]), | |
1022 | be32_to_cpu(error->ioa_data[1]), | |
1023 | be32_to_cpu(error->ioa_data[2])); | |
1024 | } | |
1025 | ||
1da177e4 LT |
1026 | /** |
1027 | * ipr_log_cache_error - Log a cache error. | |
1028 | * @ioa_cfg: ioa config struct | |
1029 | * @hostrcb: hostrcb struct | |
1030 | * | |
1031 | * Return value: | |
1032 | * none | |
1033 | **/ | |
1034 | static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg, | |
1035 | struct ipr_hostrcb *hostrcb) | |
1036 | { | |
1037 | struct ipr_hostrcb_type_02_error *error = | |
1038 | &hostrcb->hcam.u.error.u.type_02_error; | |
1039 | ||
1040 | ipr_err("-----Current Configuration-----\n"); | |
1041 | ipr_err("Cache Directory Card Information:\n"); | |
cfc32139 | 1042 | ipr_log_vpd(&error->ioa_vpd); |
1da177e4 | 1043 | ipr_err("Adapter Card Information:\n"); |
cfc32139 | 1044 | ipr_log_vpd(&error->cfc_vpd); |
1da177e4 LT |
1045 | |
1046 | ipr_err("-----Expected Configuration-----\n"); | |
1047 | ipr_err("Cache Directory Card Information:\n"); | |
cfc32139 | 1048 | ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd); |
1da177e4 | 1049 | ipr_err("Adapter Card Information:\n"); |
cfc32139 | 1050 | ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd); |
1da177e4 LT |
1051 | |
1052 | ipr_err("Additional IOA Data: %08X %08X %08X\n", | |
1053 | be32_to_cpu(error->ioa_data[0]), | |
1054 | be32_to_cpu(error->ioa_data[1]), | |
1055 | be32_to_cpu(error->ioa_data[2])); | |
1056 | } | |
1057 | ||
ee0f05b8 | 1058 | /** |
1059 | * ipr_log_enhanced_config_error - Log a configuration error. | |
1060 | * @ioa_cfg: ioa config struct | |
1061 | * @hostrcb: hostrcb struct | |
1062 | * | |
1063 | * Return value: | |
1064 | * none | |
1065 | **/ | |
1066 | static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg, | |
1067 | struct ipr_hostrcb *hostrcb) | |
1068 | { | |
1069 | int errors_logged, i; | |
1070 | struct ipr_hostrcb_device_data_entry_enhanced *dev_entry; | |
1071 | struct ipr_hostrcb_type_13_error *error; | |
1072 | ||
1073 | error = &hostrcb->hcam.u.error.u.type_13_error; | |
1074 | errors_logged = be32_to_cpu(error->errors_logged); | |
1075 | ||
1076 | ipr_err("Device Errors Detected/Logged: %d/%d\n", | |
1077 | be32_to_cpu(error->errors_detected), errors_logged); | |
1078 | ||
1079 | dev_entry = error->dev; | |
1080 | ||
1081 | for (i = 0; i < errors_logged; i++, dev_entry++) { | |
1082 | ipr_err_separator; | |
1083 | ||
1084 | ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); | |
1085 | ipr_log_ext_vpd(&dev_entry->vpd); | |
1086 | ||
1087 | ipr_err("-----New Device Information-----\n"); | |
1088 | ipr_log_ext_vpd(&dev_entry->new_vpd); | |
1089 | ||
1090 | ipr_err("Cache Directory Card Information:\n"); | |
1091 | ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); | |
1092 | ||
1093 | ipr_err("Adapter Card Information:\n"); | |
1094 | ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); | |
1095 | } | |
1096 | } | |
1097 | ||
1da177e4 LT |
1098 | /** |
1099 | * ipr_log_config_error - Log a configuration error. | |
1100 | * @ioa_cfg: ioa config struct | |
1101 | * @hostrcb: hostrcb struct | |
1102 | * | |
1103 | * Return value: | |
1104 | * none | |
1105 | **/ | |
1106 | static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg, | |
1107 | struct ipr_hostrcb *hostrcb) | |
1108 | { | |
1109 | int errors_logged, i; | |
1110 | struct ipr_hostrcb_device_data_entry *dev_entry; | |
1111 | struct ipr_hostrcb_type_03_error *error; | |
1112 | ||
1113 | error = &hostrcb->hcam.u.error.u.type_03_error; | |
1114 | errors_logged = be32_to_cpu(error->errors_logged); | |
1115 | ||
1116 | ipr_err("Device Errors Detected/Logged: %d/%d\n", | |
1117 | be32_to_cpu(error->errors_detected), errors_logged); | |
1118 | ||
cfc32139 | 1119 | dev_entry = error->dev; |
1da177e4 LT |
1120 | |
1121 | for (i = 0; i < errors_logged; i++, dev_entry++) { | |
1122 | ipr_err_separator; | |
1123 | ||
fa15b1f6 | 1124 | ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); |
cfc32139 | 1125 | ipr_log_vpd(&dev_entry->vpd); |
1da177e4 LT |
1126 | |
1127 | ipr_err("-----New Device Information-----\n"); | |
cfc32139 | 1128 | ipr_log_vpd(&dev_entry->new_vpd); |
1da177e4 LT |
1129 | |
1130 | ipr_err("Cache Directory Card Information:\n"); | |
cfc32139 | 1131 | ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd); |
1da177e4 LT |
1132 | |
1133 | ipr_err("Adapter Card Information:\n"); | |
cfc32139 | 1134 | ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd); |
1da177e4 LT |
1135 | |
1136 | ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n", | |
1137 | be32_to_cpu(dev_entry->ioa_data[0]), | |
1138 | be32_to_cpu(dev_entry->ioa_data[1]), | |
1139 | be32_to_cpu(dev_entry->ioa_data[2]), | |
1140 | be32_to_cpu(dev_entry->ioa_data[3]), | |
1141 | be32_to_cpu(dev_entry->ioa_data[4])); | |
1142 | } | |
1143 | } | |
1144 | ||
ee0f05b8 | 1145 | /** |
1146 | * ipr_log_enhanced_array_error - Log an array configuration error. | |
1147 | * @ioa_cfg: ioa config struct | |
1148 | * @hostrcb: hostrcb struct | |
1149 | * | |
1150 | * Return value: | |
1151 | * none | |
1152 | **/ | |
1153 | static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg, | |
1154 | struct ipr_hostrcb *hostrcb) | |
1155 | { | |
1156 | int i, num_entries; | |
1157 | struct ipr_hostrcb_type_14_error *error; | |
1158 | struct ipr_hostrcb_array_data_entry_enhanced *array_entry; | |
1159 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; | |
1160 | ||
1161 | error = &hostrcb->hcam.u.error.u.type_14_error; | |
1162 | ||
1163 | ipr_err_separator; | |
1164 | ||
1165 | ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", | |
1166 | error->protection_level, | |
1167 | ioa_cfg->host->host_no, | |
1168 | error->last_func_vset_res_addr.bus, | |
1169 | error->last_func_vset_res_addr.target, | |
1170 | error->last_func_vset_res_addr.lun); | |
1171 | ||
1172 | ipr_err_separator; | |
1173 | ||
1174 | array_entry = error->array_member; | |
1175 | num_entries = min_t(u32, be32_to_cpu(error->num_entries), | |
1176 | sizeof(error->array_member)); | |
1177 | ||
1178 | for (i = 0; i < num_entries; i++, array_entry++) { | |
1179 | if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) | |
1180 | continue; | |
1181 | ||
1182 | if (be32_to_cpu(error->exposed_mode_adn) == i) | |
1183 | ipr_err("Exposed Array Member %d:\n", i); | |
1184 | else | |
1185 | ipr_err("Array Member %d:\n", i); | |
1186 | ||
1187 | ipr_log_ext_vpd(&array_entry->vpd); | |
1188 | ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); | |
1189 | ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, | |
1190 | "Expected Location"); | |
1191 | ||
1192 | ipr_err_separator; | |
1193 | } | |
1194 | } | |
1195 | ||
1da177e4 LT |
1196 | /** |
1197 | * ipr_log_array_error - Log an array configuration error. | |
1198 | * @ioa_cfg: ioa config struct | |
1199 | * @hostrcb: hostrcb struct | |
1200 | * | |
1201 | * Return value: | |
1202 | * none | |
1203 | **/ | |
1204 | static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg, | |
1205 | struct ipr_hostrcb *hostrcb) | |
1206 | { | |
1207 | int i; | |
1208 | struct ipr_hostrcb_type_04_error *error; | |
1209 | struct ipr_hostrcb_array_data_entry *array_entry; | |
1210 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; | |
1211 | ||
1212 | error = &hostrcb->hcam.u.error.u.type_04_error; | |
1213 | ||
1214 | ipr_err_separator; | |
1215 | ||
1216 | ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", | |
1217 | error->protection_level, | |
1218 | ioa_cfg->host->host_no, | |
1219 | error->last_func_vset_res_addr.bus, | |
1220 | error->last_func_vset_res_addr.target, | |
1221 | error->last_func_vset_res_addr.lun); | |
1222 | ||
1223 | ipr_err_separator; | |
1224 | ||
1225 | array_entry = error->array_member; | |
1226 | ||
1227 | for (i = 0; i < 18; i++) { | |
cfc32139 | 1228 | if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) |
1da177e4 LT |
1229 | continue; |
1230 | ||
fa15b1f6 | 1231 | if (be32_to_cpu(error->exposed_mode_adn) == i) |
1da177e4 | 1232 | ipr_err("Exposed Array Member %d:\n", i); |
fa15b1f6 | 1233 | else |
1da177e4 | 1234 | ipr_err("Array Member %d:\n", i); |
1da177e4 | 1235 | |
cfc32139 | 1236 | ipr_log_vpd(&array_entry->vpd); |
1da177e4 | 1237 | |
fa15b1f6 | 1238 | ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); |
1239 | ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, | |
1240 | "Expected Location"); | |
1da177e4 LT |
1241 | |
1242 | ipr_err_separator; | |
1243 | ||
1244 | if (i == 9) | |
1245 | array_entry = error->array_member2; | |
1246 | else | |
1247 | array_entry++; | |
1248 | } | |
1249 | } | |
1250 | ||
1251 | /** | |
b0df54bb | 1252 | * ipr_log_hex_data - Log additional hex IOA error data. |
1253 | * @data: IOA error data | |
1254 | * @len: data length | |
1da177e4 LT |
1255 | * |
1256 | * Return value: | |
1257 | * none | |
1258 | **/ | |
b0df54bb | 1259 | static void ipr_log_hex_data(u32 *data, int len) |
1da177e4 LT |
1260 | { |
1261 | int i; | |
1da177e4 | 1262 | |
b0df54bb | 1263 | if (len == 0) |
1da177e4 LT |
1264 | return; |
1265 | ||
b0df54bb | 1266 | for (i = 0; i < len / 4; i += 4) { |
1da177e4 | 1267 | ipr_err("%08X: %08X %08X %08X %08X\n", i*4, |
b0df54bb | 1268 | be32_to_cpu(data[i]), |
1269 | be32_to_cpu(data[i+1]), | |
1270 | be32_to_cpu(data[i+2]), | |
1271 | be32_to_cpu(data[i+3])); | |
1da177e4 LT |
1272 | } |
1273 | } | |
1274 | ||
ee0f05b8 | 1275 | /** |
1276 | * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error. | |
1277 | * @ioa_cfg: ioa config struct | |
1278 | * @hostrcb: hostrcb struct | |
1279 | * | |
1280 | * Return value: | |
1281 | * none | |
1282 | **/ | |
1283 | static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, | |
1284 | struct ipr_hostrcb *hostrcb) | |
1285 | { | |
1286 | struct ipr_hostrcb_type_17_error *error; | |
1287 | ||
1288 | error = &hostrcb->hcam.u.error.u.type_17_error; | |
1289 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; | |
1290 | ||
1291 | ipr_err("%s\n", error->failure_reason); | |
1292 | ipr_err("Remote Adapter VPD:\n"); | |
1293 | ipr_log_ext_vpd(&error->vpd); | |
1294 | ipr_log_hex_data(error->data, | |
1295 | be32_to_cpu(hostrcb->hcam.length) - | |
1296 | (offsetof(struct ipr_hostrcb_error, u) + | |
1297 | offsetof(struct ipr_hostrcb_type_17_error, data))); | |
1298 | } | |
1299 | ||
b0df54bb | 1300 | /** |
1301 | * ipr_log_dual_ioa_error - Log a dual adapter error. | |
1302 | * @ioa_cfg: ioa config struct | |
1303 | * @hostrcb: hostrcb struct | |
1304 | * | |
1305 | * Return value: | |
1306 | * none | |
1307 | **/ | |
1308 | static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, | |
1309 | struct ipr_hostrcb *hostrcb) | |
1310 | { | |
1311 | struct ipr_hostrcb_type_07_error *error; | |
1312 | ||
1313 | error = &hostrcb->hcam.u.error.u.type_07_error; | |
1314 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; | |
1315 | ||
1316 | ipr_err("%s\n", error->failure_reason); | |
1317 | ipr_err("Remote Adapter VPD:\n"); | |
1318 | ipr_log_vpd(&error->vpd); | |
1319 | ipr_log_hex_data(error->data, | |
1320 | be32_to_cpu(hostrcb->hcam.length) - | |
1321 | (offsetof(struct ipr_hostrcb_error, u) + | |
1322 | offsetof(struct ipr_hostrcb_type_07_error, data))); | |
1323 | } | |
1324 | ||
1325 | /** | |
1326 | * ipr_log_generic_error - Log an adapter error. | |
1327 | * @ioa_cfg: ioa config struct | |
1328 | * @hostrcb: hostrcb struct | |
1329 | * | |
1330 | * Return value: | |
1331 | * none | |
1332 | **/ | |
1333 | static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg, | |
1334 | struct ipr_hostrcb *hostrcb) | |
1335 | { | |
1336 | ipr_log_hex_data(hostrcb->hcam.u.raw.data, | |
1337 | be32_to_cpu(hostrcb->hcam.length)); | |
1338 | } | |
1339 | ||
1da177e4 LT |
1340 | /** |
1341 | * ipr_get_error - Find the specfied IOASC in the ipr_error_table. | |
1342 | * @ioasc: IOASC | |
1343 | * | |
1344 | * This function will return the index of into the ipr_error_table | |
1345 | * for the specified IOASC. If the IOASC is not in the table, | |
1346 | * 0 will be returned, which points to the entry used for unknown errors. | |
1347 | * | |
1348 | * Return value: | |
1349 | * index into the ipr_error_table | |
1350 | **/ | |
1351 | static u32 ipr_get_error(u32 ioasc) | |
1352 | { | |
1353 | int i; | |
1354 | ||
1355 | for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++) | |
35a39691 | 1356 | if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK)) |
1da177e4 LT |
1357 | return i; |
1358 | ||
1359 | return 0; | |
1360 | } | |
1361 | ||
1362 | /** | |
1363 | * ipr_handle_log_data - Log an adapter error. | |
1364 | * @ioa_cfg: ioa config struct | |
1365 | * @hostrcb: hostrcb struct | |
1366 | * | |
1367 | * This function logs an adapter error to the system. | |
1368 | * | |
1369 | * Return value: | |
1370 | * none | |
1371 | **/ | |
1372 | static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg, | |
1373 | struct ipr_hostrcb *hostrcb) | |
1374 | { | |
1375 | u32 ioasc; | |
1376 | int error_index; | |
1377 | ||
1378 | if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY) | |
1379 | return; | |
1380 | ||
1381 | if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST) | |
1382 | dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n"); | |
1383 | ||
1384 | ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc); | |
1385 | ||
1386 | if (ioasc == IPR_IOASC_BUS_WAS_RESET || | |
1387 | ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER) { | |
1388 | /* Tell the midlayer we had a bus reset so it will handle the UA properly */ | |
1389 | scsi_report_bus_reset(ioa_cfg->host, | |
1390 | hostrcb->hcam.u.error.failing_dev_res_addr.bus); | |
1391 | } | |
1392 | ||
1393 | error_index = ipr_get_error(ioasc); | |
1394 | ||
1395 | if (!ipr_error_table[error_index].log_hcam) | |
1396 | return; | |
1397 | ||
1398 | if (ipr_is_device(&hostrcb->hcam.u.error.failing_dev_res_addr)) { | |
fb3ed3cb BK |
1399 | ipr_ra_err(ioa_cfg, hostrcb->hcam.u.error.failing_dev_res_addr, |
1400 | "%s\n", ipr_error_table[error_index].error); | |
1da177e4 LT |
1401 | } else { |
1402 | dev_err(&ioa_cfg->pdev->dev, "%s\n", | |
1403 | ipr_error_table[error_index].error); | |
1404 | } | |
1405 | ||
1406 | /* Set indication we have logged an error */ | |
1407 | ioa_cfg->errors_logged++; | |
1408 | ||
1409 | if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) | |
1410 | return; | |
cf852037 | 1411 | if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw)) |
1412 | hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw)); | |
1da177e4 LT |
1413 | |
1414 | switch (hostrcb->hcam.overlay_id) { | |
1da177e4 LT |
1415 | case IPR_HOST_RCB_OVERLAY_ID_2: |
1416 | ipr_log_cache_error(ioa_cfg, hostrcb); | |
1417 | break; | |
1418 | case IPR_HOST_RCB_OVERLAY_ID_3: | |
1419 | ipr_log_config_error(ioa_cfg, hostrcb); | |
1420 | break; | |
1421 | case IPR_HOST_RCB_OVERLAY_ID_4: | |
1422 | case IPR_HOST_RCB_OVERLAY_ID_6: | |
1423 | ipr_log_array_error(ioa_cfg, hostrcb); | |
1424 | break; | |
b0df54bb | 1425 | case IPR_HOST_RCB_OVERLAY_ID_7: |
1426 | ipr_log_dual_ioa_error(ioa_cfg, hostrcb); | |
1427 | break; | |
ee0f05b8 | 1428 | case IPR_HOST_RCB_OVERLAY_ID_12: |
1429 | ipr_log_enhanced_cache_error(ioa_cfg, hostrcb); | |
1430 | break; | |
1431 | case IPR_HOST_RCB_OVERLAY_ID_13: | |
1432 | ipr_log_enhanced_config_error(ioa_cfg, hostrcb); | |
1433 | break; | |
1434 | case IPR_HOST_RCB_OVERLAY_ID_14: | |
1435 | case IPR_HOST_RCB_OVERLAY_ID_16: | |
1436 | ipr_log_enhanced_array_error(ioa_cfg, hostrcb); | |
1437 | break; | |
1438 | case IPR_HOST_RCB_OVERLAY_ID_17: | |
1439 | ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb); | |
1440 | break; | |
cf852037 | 1441 | case IPR_HOST_RCB_OVERLAY_ID_1: |
1da177e4 | 1442 | case IPR_HOST_RCB_OVERLAY_ID_DEFAULT: |
1da177e4 | 1443 | default: |
a9cfca96 | 1444 | ipr_log_generic_error(ioa_cfg, hostrcb); |
1da177e4 LT |
1445 | break; |
1446 | } | |
1447 | } | |
1448 | ||
1449 | /** | |
1450 | * ipr_process_error - Op done function for an adapter error log. | |
1451 | * @ipr_cmd: ipr command struct | |
1452 | * | |
1453 | * This function is the op done function for an error log host | |
1454 | * controlled async from the adapter. It will log the error and | |
1455 | * send the HCAM back to the adapter. | |
1456 | * | |
1457 | * Return value: | |
1458 | * none | |
1459 | **/ | |
1460 | static void ipr_process_error(struct ipr_cmnd *ipr_cmd) | |
1461 | { | |
1462 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
1463 | struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; | |
1464 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
1465 | ||
1466 | list_del(&hostrcb->queue); | |
1467 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
1468 | ||
1469 | if (!ioasc) { | |
1470 | ipr_handle_log_data(ioa_cfg, hostrcb); | |
1471 | } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) { | |
1472 | dev_err(&ioa_cfg->pdev->dev, | |
1473 | "Host RCB failed with IOASC: 0x%08X\n", ioasc); | |
1474 | } | |
1475 | ||
1476 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); | |
1477 | } | |
1478 | ||
1479 | /** | |
1480 | * ipr_timeout - An internally generated op has timed out. | |
1481 | * @ipr_cmd: ipr command struct | |
1482 | * | |
1483 | * This function blocks host requests and initiates an | |
1484 | * adapter reset. | |
1485 | * | |
1486 | * Return value: | |
1487 | * none | |
1488 | **/ | |
1489 | static void ipr_timeout(struct ipr_cmnd *ipr_cmd) | |
1490 | { | |
1491 | unsigned long lock_flags = 0; | |
1492 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
1493 | ||
1494 | ENTER; | |
1495 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1496 | ||
1497 | ioa_cfg->errors_logged++; | |
1498 | dev_err(&ioa_cfg->pdev->dev, | |
1499 | "Adapter being reset due to command timeout.\n"); | |
1500 | ||
1501 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
1502 | ioa_cfg->sdt_state = GET_DUMP; | |
1503 | ||
1504 | if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) | |
1505 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
1506 | ||
1507 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1508 | LEAVE; | |
1509 | } | |
1510 | ||
1511 | /** | |
1512 | * ipr_oper_timeout - Adapter timed out transitioning to operational | |
1513 | * @ipr_cmd: ipr command struct | |
1514 | * | |
1515 | * This function blocks host requests and initiates an | |
1516 | * adapter reset. | |
1517 | * | |
1518 | * Return value: | |
1519 | * none | |
1520 | **/ | |
1521 | static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd) | |
1522 | { | |
1523 | unsigned long lock_flags = 0; | |
1524 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
1525 | ||
1526 | ENTER; | |
1527 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1528 | ||
1529 | ioa_cfg->errors_logged++; | |
1530 | dev_err(&ioa_cfg->pdev->dev, | |
1531 | "Adapter timed out transitioning to operational.\n"); | |
1532 | ||
1533 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
1534 | ioa_cfg->sdt_state = GET_DUMP; | |
1535 | ||
1536 | if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) { | |
1537 | if (ipr_fastfail) | |
1538 | ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; | |
1539 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
1540 | } | |
1541 | ||
1542 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1543 | LEAVE; | |
1544 | } | |
1545 | ||
1546 | /** | |
1547 | * ipr_reset_reload - Reset/Reload the IOA | |
1548 | * @ioa_cfg: ioa config struct | |
1549 | * @shutdown_type: shutdown type | |
1550 | * | |
1551 | * This function resets the adapter and re-initializes it. | |
1552 | * This function assumes that all new host commands have been stopped. | |
1553 | * Return value: | |
1554 | * SUCCESS / FAILED | |
1555 | **/ | |
1556 | static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg, | |
1557 | enum ipr_shutdown_type shutdown_type) | |
1558 | { | |
1559 | if (!ioa_cfg->in_reset_reload) | |
1560 | ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); | |
1561 | ||
1562 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
1563 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
1564 | spin_lock_irq(ioa_cfg->host->host_lock); | |
1565 | ||
1566 | /* If we got hit with a host reset while we were already resetting | |
1567 | the adapter for some reason, and the reset failed. */ | |
1568 | if (ioa_cfg->ioa_is_dead) { | |
1569 | ipr_trace; | |
1570 | return FAILED; | |
1571 | } | |
1572 | ||
1573 | return SUCCESS; | |
1574 | } | |
1575 | ||
1576 | /** | |
1577 | * ipr_find_ses_entry - Find matching SES in SES table | |
1578 | * @res: resource entry struct of SES | |
1579 | * | |
1580 | * Return value: | |
1581 | * pointer to SES table entry / NULL on failure | |
1582 | **/ | |
1583 | static const struct ipr_ses_table_entry * | |
1584 | ipr_find_ses_entry(struct ipr_resource_entry *res) | |
1585 | { | |
1586 | int i, j, matches; | |
1587 | const struct ipr_ses_table_entry *ste = ipr_ses_table; | |
1588 | ||
1589 | for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) { | |
1590 | for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) { | |
1591 | if (ste->compare_product_id_byte[j] == 'X') { | |
1592 | if (res->cfgte.std_inq_data.vpids.product_id[j] == ste->product_id[j]) | |
1593 | matches++; | |
1594 | else | |
1595 | break; | |
1596 | } else | |
1597 | matches++; | |
1598 | } | |
1599 | ||
1600 | if (matches == IPR_PROD_ID_LEN) | |
1601 | return ste; | |
1602 | } | |
1603 | ||
1604 | return NULL; | |
1605 | } | |
1606 | ||
1607 | /** | |
1608 | * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus | |
1609 | * @ioa_cfg: ioa config struct | |
1610 | * @bus: SCSI bus | |
1611 | * @bus_width: bus width | |
1612 | * | |
1613 | * Return value: | |
1614 | * SCSI bus speed in units of 100KHz, 1600 is 160 MHz | |
1615 | * For a 2-byte wide SCSI bus, the maximum transfer speed is | |
1616 | * twice the maximum transfer rate (e.g. for a wide enabled bus, | |
1617 | * max 160MHz = max 320MB/sec). | |
1618 | **/ | |
1619 | static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width) | |
1620 | { | |
1621 | struct ipr_resource_entry *res; | |
1622 | const struct ipr_ses_table_entry *ste; | |
1623 | u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width); | |
1624 | ||
1625 | /* Loop through each config table entry in the config table buffer */ | |
1626 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
1627 | if (!(IPR_IS_SES_DEVICE(res->cfgte.std_inq_data))) | |
1628 | continue; | |
1629 | ||
1630 | if (bus != res->cfgte.res_addr.bus) | |
1631 | continue; | |
1632 | ||
1633 | if (!(ste = ipr_find_ses_entry(res))) | |
1634 | continue; | |
1635 | ||
1636 | max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8); | |
1637 | } | |
1638 | ||
1639 | return max_xfer_rate; | |
1640 | } | |
1641 | ||
1642 | /** | |
1643 | * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA | |
1644 | * @ioa_cfg: ioa config struct | |
1645 | * @max_delay: max delay in micro-seconds to wait | |
1646 | * | |
1647 | * Waits for an IODEBUG ACK from the IOA, doing busy looping. | |
1648 | * | |
1649 | * Return value: | |
1650 | * 0 on success / other on failure | |
1651 | **/ | |
1652 | static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay) | |
1653 | { | |
1654 | volatile u32 pcii_reg; | |
1655 | int delay = 1; | |
1656 | ||
1657 | /* Read interrupt reg until IOA signals IO Debug Acknowledge */ | |
1658 | while (delay < max_delay) { | |
1659 | pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
1660 | ||
1661 | if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE) | |
1662 | return 0; | |
1663 | ||
1664 | /* udelay cannot be used if delay is more than a few milliseconds */ | |
1665 | if ((delay / 1000) > MAX_UDELAY_MS) | |
1666 | mdelay(delay / 1000); | |
1667 | else | |
1668 | udelay(delay); | |
1669 | ||
1670 | delay += delay; | |
1671 | } | |
1672 | return -EIO; | |
1673 | } | |
1674 | ||
1675 | /** | |
1676 | * ipr_get_ldump_data_section - Dump IOA memory | |
1677 | * @ioa_cfg: ioa config struct | |
1678 | * @start_addr: adapter address to dump | |
1679 | * @dest: destination kernel buffer | |
1680 | * @length_in_words: length to dump in 4 byte words | |
1681 | * | |
1682 | * Return value: | |
1683 | * 0 on success / -EIO on failure | |
1684 | **/ | |
1685 | static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg, | |
1686 | u32 start_addr, | |
1687 | __be32 *dest, u32 length_in_words) | |
1688 | { | |
1689 | volatile u32 temp_pcii_reg; | |
1690 | int i, delay = 0; | |
1691 | ||
1692 | /* Write IOA interrupt reg starting LDUMP state */ | |
1693 | writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT), | |
1694 | ioa_cfg->regs.set_uproc_interrupt_reg); | |
1695 | ||
1696 | /* Wait for IO debug acknowledge */ | |
1697 | if (ipr_wait_iodbg_ack(ioa_cfg, | |
1698 | IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) { | |
1699 | dev_err(&ioa_cfg->pdev->dev, | |
1700 | "IOA dump long data transfer timeout\n"); | |
1701 | return -EIO; | |
1702 | } | |
1703 | ||
1704 | /* Signal LDUMP interlocked - clear IO debug ack */ | |
1705 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, | |
1706 | ioa_cfg->regs.clr_interrupt_reg); | |
1707 | ||
1708 | /* Write Mailbox with starting address */ | |
1709 | writel(start_addr, ioa_cfg->ioa_mailbox); | |
1710 | ||
1711 | /* Signal address valid - clear IOA Reset alert */ | |
1712 | writel(IPR_UPROCI_RESET_ALERT, | |
1713 | ioa_cfg->regs.clr_uproc_interrupt_reg); | |
1714 | ||
1715 | for (i = 0; i < length_in_words; i++) { | |
1716 | /* Wait for IO debug acknowledge */ | |
1717 | if (ipr_wait_iodbg_ack(ioa_cfg, | |
1718 | IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) { | |
1719 | dev_err(&ioa_cfg->pdev->dev, | |
1720 | "IOA dump short data transfer timeout\n"); | |
1721 | return -EIO; | |
1722 | } | |
1723 | ||
1724 | /* Read data from mailbox and increment destination pointer */ | |
1725 | *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox)); | |
1726 | dest++; | |
1727 | ||
1728 | /* For all but the last word of data, signal data received */ | |
1729 | if (i < (length_in_words - 1)) { | |
1730 | /* Signal dump data received - Clear IO debug Ack */ | |
1731 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, | |
1732 | ioa_cfg->regs.clr_interrupt_reg); | |
1733 | } | |
1734 | } | |
1735 | ||
1736 | /* Signal end of block transfer. Set reset alert then clear IO debug ack */ | |
1737 | writel(IPR_UPROCI_RESET_ALERT, | |
1738 | ioa_cfg->regs.set_uproc_interrupt_reg); | |
1739 | ||
1740 | writel(IPR_UPROCI_IO_DEBUG_ALERT, | |
1741 | ioa_cfg->regs.clr_uproc_interrupt_reg); | |
1742 | ||
1743 | /* Signal dump data received - Clear IO debug Ack */ | |
1744 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, | |
1745 | ioa_cfg->regs.clr_interrupt_reg); | |
1746 | ||
1747 | /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */ | |
1748 | while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) { | |
1749 | temp_pcii_reg = | |
1750 | readl(ioa_cfg->regs.sense_uproc_interrupt_reg); | |
1751 | ||
1752 | if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT)) | |
1753 | return 0; | |
1754 | ||
1755 | udelay(10); | |
1756 | delay += 10; | |
1757 | } | |
1758 | ||
1759 | return 0; | |
1760 | } | |
1761 | ||
1762 | #ifdef CONFIG_SCSI_IPR_DUMP | |
1763 | /** | |
1764 | * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer | |
1765 | * @ioa_cfg: ioa config struct | |
1766 | * @pci_address: adapter address | |
1767 | * @length: length of data to copy | |
1768 | * | |
1769 | * Copy data from PCI adapter to kernel buffer. | |
1770 | * Note: length MUST be a 4 byte multiple | |
1771 | * Return value: | |
1772 | * 0 on success / other on failure | |
1773 | **/ | |
1774 | static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg, | |
1775 | unsigned long pci_address, u32 length) | |
1776 | { | |
1777 | int bytes_copied = 0; | |
1778 | int cur_len, rc, rem_len, rem_page_len; | |
1779 | __be32 *page; | |
1780 | unsigned long lock_flags = 0; | |
1781 | struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump; | |
1782 | ||
1783 | while (bytes_copied < length && | |
1784 | (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) { | |
1785 | if (ioa_dump->page_offset >= PAGE_SIZE || | |
1786 | ioa_dump->page_offset == 0) { | |
1787 | page = (__be32 *)__get_free_page(GFP_ATOMIC); | |
1788 | ||
1789 | if (!page) { | |
1790 | ipr_trace; | |
1791 | return bytes_copied; | |
1792 | } | |
1793 | ||
1794 | ioa_dump->page_offset = 0; | |
1795 | ioa_dump->ioa_data[ioa_dump->next_page_index] = page; | |
1796 | ioa_dump->next_page_index++; | |
1797 | } else | |
1798 | page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1]; | |
1799 | ||
1800 | rem_len = length - bytes_copied; | |
1801 | rem_page_len = PAGE_SIZE - ioa_dump->page_offset; | |
1802 | cur_len = min(rem_len, rem_page_len); | |
1803 | ||
1804 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1805 | if (ioa_cfg->sdt_state == ABORT_DUMP) { | |
1806 | rc = -EIO; | |
1807 | } else { | |
1808 | rc = ipr_get_ldump_data_section(ioa_cfg, | |
1809 | pci_address + bytes_copied, | |
1810 | &page[ioa_dump->page_offset / 4], | |
1811 | (cur_len / sizeof(u32))); | |
1812 | } | |
1813 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1814 | ||
1815 | if (!rc) { | |
1816 | ioa_dump->page_offset += cur_len; | |
1817 | bytes_copied += cur_len; | |
1818 | } else { | |
1819 | ipr_trace; | |
1820 | break; | |
1821 | } | |
1822 | schedule(); | |
1823 | } | |
1824 | ||
1825 | return bytes_copied; | |
1826 | } | |
1827 | ||
1828 | /** | |
1829 | * ipr_init_dump_entry_hdr - Initialize a dump entry header. | |
1830 | * @hdr: dump entry header struct | |
1831 | * | |
1832 | * Return value: | |
1833 | * nothing | |
1834 | **/ | |
1835 | static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr) | |
1836 | { | |
1837 | hdr->eye_catcher = IPR_DUMP_EYE_CATCHER; | |
1838 | hdr->num_elems = 1; | |
1839 | hdr->offset = sizeof(*hdr); | |
1840 | hdr->status = IPR_DUMP_STATUS_SUCCESS; | |
1841 | } | |
1842 | ||
1843 | /** | |
1844 | * ipr_dump_ioa_type_data - Fill in the adapter type in the dump. | |
1845 | * @ioa_cfg: ioa config struct | |
1846 | * @driver_dump: driver dump struct | |
1847 | * | |
1848 | * Return value: | |
1849 | * nothing | |
1850 | **/ | |
1851 | static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg, | |
1852 | struct ipr_driver_dump *driver_dump) | |
1853 | { | |
1854 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; | |
1855 | ||
1856 | ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr); | |
1857 | driver_dump->ioa_type_entry.hdr.len = | |
1858 | sizeof(struct ipr_dump_ioa_type_entry) - | |
1859 | sizeof(struct ipr_dump_entry_header); | |
1860 | driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; | |
1861 | driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID; | |
1862 | driver_dump->ioa_type_entry.type = ioa_cfg->type; | |
1863 | driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) | | |
1864 | (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) | | |
1865 | ucode_vpd->minor_release[1]; | |
1866 | driver_dump->hdr.num_entries++; | |
1867 | } | |
1868 | ||
1869 | /** | |
1870 | * ipr_dump_version_data - Fill in the driver version in the dump. | |
1871 | * @ioa_cfg: ioa config struct | |
1872 | * @driver_dump: driver dump struct | |
1873 | * | |
1874 | * Return value: | |
1875 | * nothing | |
1876 | **/ | |
1877 | static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg, | |
1878 | struct ipr_driver_dump *driver_dump) | |
1879 | { | |
1880 | ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr); | |
1881 | driver_dump->version_entry.hdr.len = | |
1882 | sizeof(struct ipr_dump_version_entry) - | |
1883 | sizeof(struct ipr_dump_entry_header); | |
1884 | driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; | |
1885 | driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID; | |
1886 | strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION); | |
1887 | driver_dump->hdr.num_entries++; | |
1888 | } | |
1889 | ||
1890 | /** | |
1891 | * ipr_dump_trace_data - Fill in the IOA trace in the dump. | |
1892 | * @ioa_cfg: ioa config struct | |
1893 | * @driver_dump: driver dump struct | |
1894 | * | |
1895 | * Return value: | |
1896 | * nothing | |
1897 | **/ | |
1898 | static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg, | |
1899 | struct ipr_driver_dump *driver_dump) | |
1900 | { | |
1901 | ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr); | |
1902 | driver_dump->trace_entry.hdr.len = | |
1903 | sizeof(struct ipr_dump_trace_entry) - | |
1904 | sizeof(struct ipr_dump_entry_header); | |
1905 | driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; | |
1906 | driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID; | |
1907 | memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE); | |
1908 | driver_dump->hdr.num_entries++; | |
1909 | } | |
1910 | ||
1911 | /** | |
1912 | * ipr_dump_location_data - Fill in the IOA location in the dump. | |
1913 | * @ioa_cfg: ioa config struct | |
1914 | * @driver_dump: driver dump struct | |
1915 | * | |
1916 | * Return value: | |
1917 | * nothing | |
1918 | **/ | |
1919 | static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg, | |
1920 | struct ipr_driver_dump *driver_dump) | |
1921 | { | |
1922 | ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr); | |
1923 | driver_dump->location_entry.hdr.len = | |
1924 | sizeof(struct ipr_dump_location_entry) - | |
1925 | sizeof(struct ipr_dump_entry_header); | |
1926 | driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; | |
1927 | driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID; | |
1928 | strcpy(driver_dump->location_entry.location, ioa_cfg->pdev->dev.bus_id); | |
1929 | driver_dump->hdr.num_entries++; | |
1930 | } | |
1931 | ||
1932 | /** | |
1933 | * ipr_get_ioa_dump - Perform a dump of the driver and adapter. | |
1934 | * @ioa_cfg: ioa config struct | |
1935 | * @dump: dump struct | |
1936 | * | |
1937 | * Return value: | |
1938 | * nothing | |
1939 | **/ | |
1940 | static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump) | |
1941 | { | |
1942 | unsigned long start_addr, sdt_word; | |
1943 | unsigned long lock_flags = 0; | |
1944 | struct ipr_driver_dump *driver_dump = &dump->driver_dump; | |
1945 | struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump; | |
1946 | u32 num_entries, start_off, end_off; | |
1947 | u32 bytes_to_copy, bytes_copied, rc; | |
1948 | struct ipr_sdt *sdt; | |
1949 | int i; | |
1950 | ||
1951 | ENTER; | |
1952 | ||
1953 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1954 | ||
1955 | if (ioa_cfg->sdt_state != GET_DUMP) { | |
1956 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1957 | return; | |
1958 | } | |
1959 | ||
1960 | start_addr = readl(ioa_cfg->ioa_mailbox); | |
1961 | ||
1962 | if (!ipr_sdt_is_fmt2(start_addr)) { | |
1963 | dev_err(&ioa_cfg->pdev->dev, | |
1964 | "Invalid dump table format: %lx\n", start_addr); | |
1965 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1966 | return; | |
1967 | } | |
1968 | ||
1969 | dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n"); | |
1970 | ||
1971 | driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER; | |
1972 | ||
1973 | /* Initialize the overall dump header */ | |
1974 | driver_dump->hdr.len = sizeof(struct ipr_driver_dump); | |
1975 | driver_dump->hdr.num_entries = 1; | |
1976 | driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header); | |
1977 | driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS; | |
1978 | driver_dump->hdr.os = IPR_DUMP_OS_LINUX; | |
1979 | driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME; | |
1980 | ||
1981 | ipr_dump_version_data(ioa_cfg, driver_dump); | |
1982 | ipr_dump_location_data(ioa_cfg, driver_dump); | |
1983 | ipr_dump_ioa_type_data(ioa_cfg, driver_dump); | |
1984 | ipr_dump_trace_data(ioa_cfg, driver_dump); | |
1985 | ||
1986 | /* Update dump_header */ | |
1987 | driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header); | |
1988 | ||
1989 | /* IOA Dump entry */ | |
1990 | ipr_init_dump_entry_hdr(&ioa_dump->hdr); | |
1991 | ioa_dump->format = IPR_SDT_FMT2; | |
1992 | ioa_dump->hdr.len = 0; | |
1993 | ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; | |
1994 | ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID; | |
1995 | ||
1996 | /* First entries in sdt are actually a list of dump addresses and | |
1997 | lengths to gather the real dump data. sdt represents the pointer | |
1998 | to the ioa generated dump table. Dump data will be extracted based | |
1999 | on entries in this table */ | |
2000 | sdt = &ioa_dump->sdt; | |
2001 | ||
2002 | rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt, | |
2003 | sizeof(struct ipr_sdt) / sizeof(__be32)); | |
2004 | ||
2005 | /* Smart Dump table is ready to use and the first entry is valid */ | |
2006 | if (rc || (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE)) { | |
2007 | dev_err(&ioa_cfg->pdev->dev, | |
2008 | "Dump of IOA failed. Dump table not valid: %d, %X.\n", | |
2009 | rc, be32_to_cpu(sdt->hdr.state)); | |
2010 | driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED; | |
2011 | ioa_cfg->sdt_state = DUMP_OBTAINED; | |
2012 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2013 | return; | |
2014 | } | |
2015 | ||
2016 | num_entries = be32_to_cpu(sdt->hdr.num_entries_used); | |
2017 | ||
2018 | if (num_entries > IPR_NUM_SDT_ENTRIES) | |
2019 | num_entries = IPR_NUM_SDT_ENTRIES; | |
2020 | ||
2021 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2022 | ||
2023 | for (i = 0; i < num_entries; i++) { | |
2024 | if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) { | |
2025 | driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; | |
2026 | break; | |
2027 | } | |
2028 | ||
2029 | if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) { | |
2030 | sdt_word = be32_to_cpu(sdt->entry[i].bar_str_offset); | |
2031 | start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK; | |
2032 | end_off = be32_to_cpu(sdt->entry[i].end_offset); | |
2033 | ||
2034 | if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) { | |
2035 | bytes_to_copy = end_off - start_off; | |
2036 | if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) { | |
2037 | sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY; | |
2038 | continue; | |
2039 | } | |
2040 | ||
2041 | /* Copy data from adapter to driver buffers */ | |
2042 | bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word, | |
2043 | bytes_to_copy); | |
2044 | ||
2045 | ioa_dump->hdr.len += bytes_copied; | |
2046 | ||
2047 | if (bytes_copied != bytes_to_copy) { | |
2048 | driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; | |
2049 | break; | |
2050 | } | |
2051 | } | |
2052 | } | |
2053 | } | |
2054 | ||
2055 | dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n"); | |
2056 | ||
2057 | /* Update dump_header */ | |
2058 | driver_dump->hdr.len += ioa_dump->hdr.len; | |
2059 | wmb(); | |
2060 | ioa_cfg->sdt_state = DUMP_OBTAINED; | |
2061 | LEAVE; | |
2062 | } | |
2063 | ||
2064 | #else | |
2065 | #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0) | |
2066 | #endif | |
2067 | ||
2068 | /** | |
2069 | * ipr_release_dump - Free adapter dump memory | |
2070 | * @kref: kref struct | |
2071 | * | |
2072 | * Return value: | |
2073 | * nothing | |
2074 | **/ | |
2075 | static void ipr_release_dump(struct kref *kref) | |
2076 | { | |
2077 | struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref); | |
2078 | struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg; | |
2079 | unsigned long lock_flags = 0; | |
2080 | int i; | |
2081 | ||
2082 | ENTER; | |
2083 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2084 | ioa_cfg->dump = NULL; | |
2085 | ioa_cfg->sdt_state = INACTIVE; | |
2086 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2087 | ||
2088 | for (i = 0; i < dump->ioa_dump.next_page_index; i++) | |
2089 | free_page((unsigned long) dump->ioa_dump.ioa_data[i]); | |
2090 | ||
2091 | kfree(dump); | |
2092 | LEAVE; | |
2093 | } | |
2094 | ||
2095 | /** | |
2096 | * ipr_worker_thread - Worker thread | |
2097 | * @data: ioa config struct | |
2098 | * | |
2099 | * Called at task level from a work thread. This function takes care | |
2100 | * of adding and removing device from the mid-layer as configuration | |
2101 | * changes are detected by the adapter. | |
2102 | * | |
2103 | * Return value: | |
2104 | * nothing | |
2105 | **/ | |
2106 | static void ipr_worker_thread(void *data) | |
2107 | { | |
2108 | unsigned long lock_flags; | |
2109 | struct ipr_resource_entry *res; | |
2110 | struct scsi_device *sdev; | |
2111 | struct ipr_dump *dump; | |
2112 | struct ipr_ioa_cfg *ioa_cfg = data; | |
2113 | u8 bus, target, lun; | |
2114 | int did_work; | |
2115 | ||
2116 | ENTER; | |
2117 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2118 | ||
2119 | if (ioa_cfg->sdt_state == GET_DUMP) { | |
2120 | dump = ioa_cfg->dump; | |
2121 | if (!dump) { | |
2122 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2123 | return; | |
2124 | } | |
2125 | kref_get(&dump->kref); | |
2126 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2127 | ipr_get_ioa_dump(ioa_cfg, dump); | |
2128 | kref_put(&dump->kref, ipr_release_dump); | |
2129 | ||
2130 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2131 | if (ioa_cfg->sdt_state == DUMP_OBTAINED) | |
2132 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
2133 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2134 | return; | |
2135 | } | |
2136 | ||
2137 | restart: | |
2138 | do { | |
2139 | did_work = 0; | |
2140 | if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) { | |
2141 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2142 | return; | |
2143 | } | |
2144 | ||
2145 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
2146 | if (res->del_from_ml && res->sdev) { | |
2147 | did_work = 1; | |
2148 | sdev = res->sdev; | |
2149 | if (!scsi_device_get(sdev)) { | |
1da177e4 LT |
2150 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); |
2151 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2152 | scsi_remove_device(sdev); | |
2153 | scsi_device_put(sdev); | |
2154 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2155 | } | |
2156 | break; | |
2157 | } | |
2158 | } | |
2159 | } while(did_work); | |
2160 | ||
2161 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
2162 | if (res->add_to_ml) { | |
2163 | bus = res->cfgte.res_addr.bus; | |
2164 | target = res->cfgte.res_addr.target; | |
2165 | lun = res->cfgte.res_addr.lun; | |
1121b794 | 2166 | res->add_to_ml = 0; |
1da177e4 LT |
2167 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
2168 | scsi_add_device(ioa_cfg->host, bus, target, lun); | |
2169 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2170 | goto restart; | |
2171 | } | |
2172 | } | |
2173 | ||
2174 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
312c004d | 2175 | kobject_uevent(&ioa_cfg->host->shost_classdev.kobj, KOBJ_CHANGE); |
1da177e4 LT |
2176 | LEAVE; |
2177 | } | |
2178 | ||
2179 | #ifdef CONFIG_SCSI_IPR_TRACE | |
2180 | /** | |
2181 | * ipr_read_trace - Dump the adapter trace | |
2182 | * @kobj: kobject struct | |
2183 | * @buf: buffer | |
2184 | * @off: offset | |
2185 | * @count: buffer size | |
2186 | * | |
2187 | * Return value: | |
2188 | * number of bytes printed to buffer | |
2189 | **/ | |
2190 | static ssize_t ipr_read_trace(struct kobject *kobj, char *buf, | |
2191 | loff_t off, size_t count) | |
2192 | { | |
2193 | struct class_device *cdev = container_of(kobj,struct class_device,kobj); | |
2194 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2195 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2196 | unsigned long lock_flags = 0; | |
2197 | int size = IPR_TRACE_SIZE; | |
2198 | char *src = (char *)ioa_cfg->trace; | |
2199 | ||
2200 | if (off > size) | |
2201 | return 0; | |
2202 | if (off + count > size) { | |
2203 | size -= off; | |
2204 | count = size; | |
2205 | } | |
2206 | ||
2207 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2208 | memcpy(buf, &src[off], count); | |
2209 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2210 | return count; | |
2211 | } | |
2212 | ||
2213 | static struct bin_attribute ipr_trace_attr = { | |
2214 | .attr = { | |
2215 | .name = "trace", | |
2216 | .mode = S_IRUGO, | |
2217 | }, | |
2218 | .size = 0, | |
2219 | .read = ipr_read_trace, | |
2220 | }; | |
2221 | #endif | |
2222 | ||
62275040 | 2223 | static const struct { |
2224 | enum ipr_cache_state state; | |
2225 | char *name; | |
2226 | } cache_state [] = { | |
2227 | { CACHE_NONE, "none" }, | |
2228 | { CACHE_DISABLED, "disabled" }, | |
2229 | { CACHE_ENABLED, "enabled" } | |
2230 | }; | |
2231 | ||
2232 | /** | |
2233 | * ipr_show_write_caching - Show the write caching attribute | |
2234 | * @class_dev: class device struct | |
2235 | * @buf: buffer | |
2236 | * | |
2237 | * Return value: | |
2238 | * number of bytes printed to buffer | |
2239 | **/ | |
2240 | static ssize_t ipr_show_write_caching(struct class_device *class_dev, char *buf) | |
2241 | { | |
2242 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2243 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2244 | unsigned long lock_flags = 0; | |
2245 | int i, len = 0; | |
2246 | ||
2247 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2248 | for (i = 0; i < ARRAY_SIZE(cache_state); i++) { | |
2249 | if (cache_state[i].state == ioa_cfg->cache_state) { | |
2250 | len = snprintf(buf, PAGE_SIZE, "%s\n", cache_state[i].name); | |
2251 | break; | |
2252 | } | |
2253 | } | |
2254 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2255 | return len; | |
2256 | } | |
2257 | ||
2258 | ||
2259 | /** | |
2260 | * ipr_store_write_caching - Enable/disable adapter write cache | |
2261 | * @class_dev: class_device struct | |
2262 | * @buf: buffer | |
2263 | * @count: buffer size | |
2264 | * | |
2265 | * This function will enable/disable adapter write cache. | |
2266 | * | |
2267 | * Return value: | |
2268 | * count on success / other on failure | |
2269 | **/ | |
2270 | static ssize_t ipr_store_write_caching(struct class_device *class_dev, | |
2271 | const char *buf, size_t count) | |
2272 | { | |
2273 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2274 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2275 | unsigned long lock_flags = 0; | |
2276 | enum ipr_cache_state new_state = CACHE_INVALID; | |
2277 | int i; | |
2278 | ||
2279 | if (!capable(CAP_SYS_ADMIN)) | |
2280 | return -EACCES; | |
2281 | if (ioa_cfg->cache_state == CACHE_NONE) | |
2282 | return -EINVAL; | |
2283 | ||
2284 | for (i = 0; i < ARRAY_SIZE(cache_state); i++) { | |
2285 | if (!strncmp(cache_state[i].name, buf, strlen(cache_state[i].name))) { | |
2286 | new_state = cache_state[i].state; | |
2287 | break; | |
2288 | } | |
2289 | } | |
2290 | ||
2291 | if (new_state != CACHE_DISABLED && new_state != CACHE_ENABLED) | |
2292 | return -EINVAL; | |
2293 | ||
2294 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2295 | if (ioa_cfg->cache_state == new_state) { | |
2296 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2297 | return count; | |
2298 | } | |
2299 | ||
2300 | ioa_cfg->cache_state = new_state; | |
2301 | dev_info(&ioa_cfg->pdev->dev, "%s adapter write cache.\n", | |
2302 | new_state == CACHE_ENABLED ? "Enabling" : "Disabling"); | |
2303 | if (!ioa_cfg->in_reset_reload) | |
2304 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
2305 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2306 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2307 | ||
2308 | return count; | |
2309 | } | |
2310 | ||
2311 | static struct class_device_attribute ipr_ioa_cache_attr = { | |
2312 | .attr = { | |
2313 | .name = "write_cache", | |
2314 | .mode = S_IRUGO | S_IWUSR, | |
2315 | }, | |
2316 | .show = ipr_show_write_caching, | |
2317 | .store = ipr_store_write_caching | |
2318 | }; | |
2319 | ||
1da177e4 LT |
2320 | /** |
2321 | * ipr_show_fw_version - Show the firmware version | |
2322 | * @class_dev: class device struct | |
2323 | * @buf: buffer | |
2324 | * | |
2325 | * Return value: | |
2326 | * number of bytes printed to buffer | |
2327 | **/ | |
2328 | static ssize_t ipr_show_fw_version(struct class_device *class_dev, char *buf) | |
2329 | { | |
2330 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2331 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2332 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; | |
2333 | unsigned long lock_flags = 0; | |
2334 | int len; | |
2335 | ||
2336 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2337 | len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n", | |
2338 | ucode_vpd->major_release, ucode_vpd->card_type, | |
2339 | ucode_vpd->minor_release[0], | |
2340 | ucode_vpd->minor_release[1]); | |
2341 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2342 | return len; | |
2343 | } | |
2344 | ||
2345 | static struct class_device_attribute ipr_fw_version_attr = { | |
2346 | .attr = { | |
2347 | .name = "fw_version", | |
2348 | .mode = S_IRUGO, | |
2349 | }, | |
2350 | .show = ipr_show_fw_version, | |
2351 | }; | |
2352 | ||
2353 | /** | |
2354 | * ipr_show_log_level - Show the adapter's error logging level | |
2355 | * @class_dev: class device struct | |
2356 | * @buf: buffer | |
2357 | * | |
2358 | * Return value: | |
2359 | * number of bytes printed to buffer | |
2360 | **/ | |
2361 | static ssize_t ipr_show_log_level(struct class_device *class_dev, char *buf) | |
2362 | { | |
2363 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2364 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2365 | unsigned long lock_flags = 0; | |
2366 | int len; | |
2367 | ||
2368 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2369 | len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level); | |
2370 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2371 | return len; | |
2372 | } | |
2373 | ||
2374 | /** | |
2375 | * ipr_store_log_level - Change the adapter's error logging level | |
2376 | * @class_dev: class device struct | |
2377 | * @buf: buffer | |
2378 | * | |
2379 | * Return value: | |
2380 | * number of bytes printed to buffer | |
2381 | **/ | |
2382 | static ssize_t ipr_store_log_level(struct class_device *class_dev, | |
2383 | const char *buf, size_t count) | |
2384 | { | |
2385 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2386 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2387 | unsigned long lock_flags = 0; | |
2388 | ||
2389 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2390 | ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); | |
2391 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2392 | return strlen(buf); | |
2393 | } | |
2394 | ||
2395 | static struct class_device_attribute ipr_log_level_attr = { | |
2396 | .attr = { | |
2397 | .name = "log_level", | |
2398 | .mode = S_IRUGO | S_IWUSR, | |
2399 | }, | |
2400 | .show = ipr_show_log_level, | |
2401 | .store = ipr_store_log_level | |
2402 | }; | |
2403 | ||
2404 | /** | |
2405 | * ipr_store_diagnostics - IOA Diagnostics interface | |
2406 | * @class_dev: class_device struct | |
2407 | * @buf: buffer | |
2408 | * @count: buffer size | |
2409 | * | |
2410 | * This function will reset the adapter and wait a reasonable | |
2411 | * amount of time for any errors that the adapter might log. | |
2412 | * | |
2413 | * Return value: | |
2414 | * count on success / other on failure | |
2415 | **/ | |
2416 | static ssize_t ipr_store_diagnostics(struct class_device *class_dev, | |
2417 | const char *buf, size_t count) | |
2418 | { | |
2419 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2420 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2421 | unsigned long lock_flags = 0; | |
2422 | int rc = count; | |
2423 | ||
2424 | if (!capable(CAP_SYS_ADMIN)) | |
2425 | return -EACCES; | |
2426 | ||
2427 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2428 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2429 | ioa_cfg->errors_logged = 0; | |
2430 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
2431 | ||
2432 | if (ioa_cfg->in_reset_reload) { | |
2433 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2434 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2435 | ||
2436 | /* Wait for a second for any errors to be logged */ | |
2437 | msleep(1000); | |
2438 | } else { | |
2439 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2440 | return -EIO; | |
2441 | } | |
2442 | ||
2443 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2444 | if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) | |
2445 | rc = -EIO; | |
2446 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2447 | ||
2448 | return rc; | |
2449 | } | |
2450 | ||
2451 | static struct class_device_attribute ipr_diagnostics_attr = { | |
2452 | .attr = { | |
2453 | .name = "run_diagnostics", | |
2454 | .mode = S_IWUSR, | |
2455 | }, | |
2456 | .store = ipr_store_diagnostics | |
2457 | }; | |
2458 | ||
f37eb54b | 2459 | /** |
2460 | * ipr_show_adapter_state - Show the adapter's state | |
2461 | * @class_dev: class device struct | |
2462 | * @buf: buffer | |
2463 | * | |
2464 | * Return value: | |
2465 | * number of bytes printed to buffer | |
2466 | **/ | |
2467 | static ssize_t ipr_show_adapter_state(struct class_device *class_dev, char *buf) | |
2468 | { | |
2469 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2470 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2471 | unsigned long lock_flags = 0; | |
2472 | int len; | |
2473 | ||
2474 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2475 | if (ioa_cfg->ioa_is_dead) | |
2476 | len = snprintf(buf, PAGE_SIZE, "offline\n"); | |
2477 | else | |
2478 | len = snprintf(buf, PAGE_SIZE, "online\n"); | |
2479 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2480 | return len; | |
2481 | } | |
2482 | ||
2483 | /** | |
2484 | * ipr_store_adapter_state - Change adapter state | |
2485 | * @class_dev: class_device struct | |
2486 | * @buf: buffer | |
2487 | * @count: buffer size | |
2488 | * | |
2489 | * This function will change the adapter's state. | |
2490 | * | |
2491 | * Return value: | |
2492 | * count on success / other on failure | |
2493 | **/ | |
2494 | static ssize_t ipr_store_adapter_state(struct class_device *class_dev, | |
2495 | const char *buf, size_t count) | |
2496 | { | |
2497 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2498 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2499 | unsigned long lock_flags; | |
2500 | int result = count; | |
2501 | ||
2502 | if (!capable(CAP_SYS_ADMIN)) | |
2503 | return -EACCES; | |
2504 | ||
2505 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2506 | if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) { | |
2507 | ioa_cfg->ioa_is_dead = 0; | |
2508 | ioa_cfg->reset_retries = 0; | |
2509 | ioa_cfg->in_ioa_bringdown = 0; | |
2510 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
2511 | } | |
2512 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2513 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2514 | ||
2515 | return result; | |
2516 | } | |
2517 | ||
2518 | static struct class_device_attribute ipr_ioa_state_attr = { | |
2519 | .attr = { | |
2520 | .name = "state", | |
2521 | .mode = S_IRUGO | S_IWUSR, | |
2522 | }, | |
2523 | .show = ipr_show_adapter_state, | |
2524 | .store = ipr_store_adapter_state | |
2525 | }; | |
2526 | ||
1da177e4 LT |
2527 | /** |
2528 | * ipr_store_reset_adapter - Reset the adapter | |
2529 | * @class_dev: class_device struct | |
2530 | * @buf: buffer | |
2531 | * @count: buffer size | |
2532 | * | |
2533 | * This function will reset the adapter. | |
2534 | * | |
2535 | * Return value: | |
2536 | * count on success / other on failure | |
2537 | **/ | |
2538 | static ssize_t ipr_store_reset_adapter(struct class_device *class_dev, | |
2539 | const char *buf, size_t count) | |
2540 | { | |
2541 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2542 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2543 | unsigned long lock_flags; | |
2544 | int result = count; | |
2545 | ||
2546 | if (!capable(CAP_SYS_ADMIN)) | |
2547 | return -EACCES; | |
2548 | ||
2549 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2550 | if (!ioa_cfg->in_reset_reload) | |
2551 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
2552 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2553 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2554 | ||
2555 | return result; | |
2556 | } | |
2557 | ||
2558 | static struct class_device_attribute ipr_ioa_reset_attr = { | |
2559 | .attr = { | |
2560 | .name = "reset_host", | |
2561 | .mode = S_IWUSR, | |
2562 | }, | |
2563 | .store = ipr_store_reset_adapter | |
2564 | }; | |
2565 | ||
2566 | /** | |
2567 | * ipr_alloc_ucode_buffer - Allocates a microcode download buffer | |
2568 | * @buf_len: buffer length | |
2569 | * | |
2570 | * Allocates a DMA'able buffer in chunks and assembles a scatter/gather | |
2571 | * list to use for microcode download | |
2572 | * | |
2573 | * Return value: | |
2574 | * pointer to sglist / NULL on failure | |
2575 | **/ | |
2576 | static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) | |
2577 | { | |
2578 | int sg_size, order, bsize_elem, num_elem, i, j; | |
2579 | struct ipr_sglist *sglist; | |
2580 | struct scatterlist *scatterlist; | |
2581 | struct page *page; | |
2582 | ||
2583 | /* Get the minimum size per scatter/gather element */ | |
2584 | sg_size = buf_len / (IPR_MAX_SGLIST - 1); | |
2585 | ||
2586 | /* Get the actual size per element */ | |
2587 | order = get_order(sg_size); | |
2588 | ||
2589 | /* Determine the actual number of bytes per element */ | |
2590 | bsize_elem = PAGE_SIZE * (1 << order); | |
2591 | ||
2592 | /* Determine the actual number of sg entries needed */ | |
2593 | if (buf_len % bsize_elem) | |
2594 | num_elem = (buf_len / bsize_elem) + 1; | |
2595 | else | |
2596 | num_elem = buf_len / bsize_elem; | |
2597 | ||
2598 | /* Allocate a scatter/gather list for the DMA */ | |
0bc42e35 | 2599 | sglist = kzalloc(sizeof(struct ipr_sglist) + |
1da177e4 LT |
2600 | (sizeof(struct scatterlist) * (num_elem - 1)), |
2601 | GFP_KERNEL); | |
2602 | ||
2603 | if (sglist == NULL) { | |
2604 | ipr_trace; | |
2605 | return NULL; | |
2606 | } | |
2607 | ||
1da177e4 LT |
2608 | scatterlist = sglist->scatterlist; |
2609 | ||
2610 | sglist->order = order; | |
2611 | sglist->num_sg = num_elem; | |
2612 | ||
2613 | /* Allocate a bunch of sg elements */ | |
2614 | for (i = 0; i < num_elem; i++) { | |
2615 | page = alloc_pages(GFP_KERNEL, order); | |
2616 | if (!page) { | |
2617 | ipr_trace; | |
2618 | ||
2619 | /* Free up what we already allocated */ | |
2620 | for (j = i - 1; j >= 0; j--) | |
2621 | __free_pages(scatterlist[j].page, order); | |
2622 | kfree(sglist); | |
2623 | return NULL; | |
2624 | } | |
2625 | ||
2626 | scatterlist[i].page = page; | |
2627 | } | |
2628 | ||
2629 | return sglist; | |
2630 | } | |
2631 | ||
2632 | /** | |
2633 | * ipr_free_ucode_buffer - Frees a microcode download buffer | |
2634 | * @p_dnld: scatter/gather list pointer | |
2635 | * | |
2636 | * Free a DMA'able ucode download buffer previously allocated with | |
2637 | * ipr_alloc_ucode_buffer | |
2638 | * | |
2639 | * Return value: | |
2640 | * nothing | |
2641 | **/ | |
2642 | static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) | |
2643 | { | |
2644 | int i; | |
2645 | ||
2646 | for (i = 0; i < sglist->num_sg; i++) | |
2647 | __free_pages(sglist->scatterlist[i].page, sglist->order); | |
2648 | ||
2649 | kfree(sglist); | |
2650 | } | |
2651 | ||
2652 | /** | |
2653 | * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer | |
2654 | * @sglist: scatter/gather list pointer | |
2655 | * @buffer: buffer pointer | |
2656 | * @len: buffer length | |
2657 | * | |
2658 | * Copy a microcode image from a user buffer into a buffer allocated by | |
2659 | * ipr_alloc_ucode_buffer | |
2660 | * | |
2661 | * Return value: | |
2662 | * 0 on success / other on failure | |
2663 | **/ | |
2664 | static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, | |
2665 | u8 *buffer, u32 len) | |
2666 | { | |
2667 | int bsize_elem, i, result = 0; | |
2668 | struct scatterlist *scatterlist; | |
2669 | void *kaddr; | |
2670 | ||
2671 | /* Determine the actual number of bytes per element */ | |
2672 | bsize_elem = PAGE_SIZE * (1 << sglist->order); | |
2673 | ||
2674 | scatterlist = sglist->scatterlist; | |
2675 | ||
2676 | for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) { | |
2677 | kaddr = kmap(scatterlist[i].page); | |
2678 | memcpy(kaddr, buffer, bsize_elem); | |
2679 | kunmap(scatterlist[i].page); | |
2680 | ||
2681 | scatterlist[i].length = bsize_elem; | |
2682 | ||
2683 | if (result != 0) { | |
2684 | ipr_trace; | |
2685 | return result; | |
2686 | } | |
2687 | } | |
2688 | ||
2689 | if (len % bsize_elem) { | |
2690 | kaddr = kmap(scatterlist[i].page); | |
2691 | memcpy(kaddr, buffer, len % bsize_elem); | |
2692 | kunmap(scatterlist[i].page); | |
2693 | ||
2694 | scatterlist[i].length = len % bsize_elem; | |
2695 | } | |
2696 | ||
2697 | sglist->buffer_len = len; | |
2698 | return result; | |
2699 | } | |
2700 | ||
2701 | /** | |
12baa420 | 2702 | * ipr_build_ucode_ioadl - Build a microcode download IOADL |
1da177e4 LT |
2703 | * @ipr_cmd: ipr command struct |
2704 | * @sglist: scatter/gather list | |
1da177e4 | 2705 | * |
12baa420 | 2706 | * Builds a microcode download IOA data list (IOADL). |
1da177e4 | 2707 | * |
1da177e4 | 2708 | **/ |
12baa420 | 2709 | static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, |
2710 | struct ipr_sglist *sglist) | |
1da177e4 | 2711 | { |
1da177e4 LT |
2712 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
2713 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
2714 | struct scatterlist *scatterlist = sglist->scatterlist; | |
2715 | int i; | |
2716 | ||
12baa420 | 2717 | ipr_cmd->dma_use_sg = sglist->num_dma_sg; |
1da177e4 | 2718 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
12baa420 | 2719 | ioarcb->write_data_transfer_length = cpu_to_be32(sglist->buffer_len); |
1da177e4 LT |
2720 | ioarcb->write_ioadl_len = |
2721 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
2722 | ||
2723 | for (i = 0; i < ipr_cmd->dma_use_sg; i++) { | |
2724 | ioadl[i].flags_and_data_len = | |
2725 | cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i])); | |
2726 | ioadl[i].address = | |
2727 | cpu_to_be32(sg_dma_address(&scatterlist[i])); | |
2728 | } | |
2729 | ||
12baa420 | 2730 | ioadl[i-1].flags_and_data_len |= |
2731 | cpu_to_be32(IPR_IOADL_FLAGS_LAST); | |
2732 | } | |
2733 | ||
2734 | /** | |
2735 | * ipr_update_ioa_ucode - Update IOA's microcode | |
2736 | * @ioa_cfg: ioa config struct | |
2737 | * @sglist: scatter/gather list | |
2738 | * | |
2739 | * Initiate an adapter reset to update the IOA's microcode | |
2740 | * | |
2741 | * Return value: | |
2742 | * 0 on success / -EIO on failure | |
2743 | **/ | |
2744 | static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, | |
2745 | struct ipr_sglist *sglist) | |
2746 | { | |
2747 | unsigned long lock_flags; | |
2748 | ||
2749 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2750 | ||
2751 | if (ioa_cfg->ucode_sglist) { | |
2752 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2753 | dev_err(&ioa_cfg->pdev->dev, | |
2754 | "Microcode download already in progress\n"); | |
2755 | return -EIO; | |
1da177e4 | 2756 | } |
12baa420 | 2757 | |
2758 | sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist, | |
2759 | sglist->num_sg, DMA_TO_DEVICE); | |
2760 | ||
2761 | if (!sglist->num_dma_sg) { | |
2762 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2763 | dev_err(&ioa_cfg->pdev->dev, | |
2764 | "Failed to map microcode download buffer!\n"); | |
1da177e4 LT |
2765 | return -EIO; |
2766 | } | |
2767 | ||
12baa420 | 2768 | ioa_cfg->ucode_sglist = sglist; |
2769 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
2770 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2771 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2772 | ||
2773 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2774 | ioa_cfg->ucode_sglist = NULL; | |
2775 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1da177e4 LT |
2776 | return 0; |
2777 | } | |
2778 | ||
2779 | /** | |
2780 | * ipr_store_update_fw - Update the firmware on the adapter | |
2781 | * @class_dev: class_device struct | |
2782 | * @buf: buffer | |
2783 | * @count: buffer size | |
2784 | * | |
2785 | * This function will update the firmware on the adapter. | |
2786 | * | |
2787 | * Return value: | |
2788 | * count on success / other on failure | |
2789 | **/ | |
2790 | static ssize_t ipr_store_update_fw(struct class_device *class_dev, | |
2791 | const char *buf, size_t count) | |
2792 | { | |
2793 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2794 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2795 | struct ipr_ucode_image_header *image_hdr; | |
2796 | const struct firmware *fw_entry; | |
2797 | struct ipr_sglist *sglist; | |
1da177e4 LT |
2798 | char fname[100]; |
2799 | char *src; | |
2800 | int len, result, dnld_size; | |
2801 | ||
2802 | if (!capable(CAP_SYS_ADMIN)) | |
2803 | return -EACCES; | |
2804 | ||
2805 | len = snprintf(fname, 99, "%s", buf); | |
2806 | fname[len-1] = '\0'; | |
2807 | ||
2808 | if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) { | |
2809 | dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname); | |
2810 | return -EIO; | |
2811 | } | |
2812 | ||
2813 | image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; | |
2814 | ||
2815 | if (be32_to_cpu(image_hdr->header_length) > fw_entry->size || | |
2816 | (ioa_cfg->vpd_cbs->page3_data.card_type && | |
2817 | ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) { | |
2818 | dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n"); | |
2819 | release_firmware(fw_entry); | |
2820 | return -EINVAL; | |
2821 | } | |
2822 | ||
2823 | src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); | |
2824 | dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); | |
2825 | sglist = ipr_alloc_ucode_buffer(dnld_size); | |
2826 | ||
2827 | if (!sglist) { | |
2828 | dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n"); | |
2829 | release_firmware(fw_entry); | |
2830 | return -ENOMEM; | |
2831 | } | |
2832 | ||
2833 | result = ipr_copy_ucode_buffer(sglist, src, dnld_size); | |
2834 | ||
2835 | if (result) { | |
2836 | dev_err(&ioa_cfg->pdev->dev, | |
2837 | "Microcode buffer copy to DMA buffer failed\n"); | |
12baa420 | 2838 | goto out; |
1da177e4 LT |
2839 | } |
2840 | ||
12baa420 | 2841 | result = ipr_update_ioa_ucode(ioa_cfg, sglist); |
1da177e4 | 2842 | |
12baa420 | 2843 | if (!result) |
2844 | result = count; | |
2845 | out: | |
1da177e4 LT |
2846 | ipr_free_ucode_buffer(sglist); |
2847 | release_firmware(fw_entry); | |
12baa420 | 2848 | return result; |
1da177e4 LT |
2849 | } |
2850 | ||
2851 | static struct class_device_attribute ipr_update_fw_attr = { | |
2852 | .attr = { | |
2853 | .name = "update_fw", | |
2854 | .mode = S_IWUSR, | |
2855 | }, | |
2856 | .store = ipr_store_update_fw | |
2857 | }; | |
2858 | ||
2859 | static struct class_device_attribute *ipr_ioa_attrs[] = { | |
2860 | &ipr_fw_version_attr, | |
2861 | &ipr_log_level_attr, | |
2862 | &ipr_diagnostics_attr, | |
f37eb54b | 2863 | &ipr_ioa_state_attr, |
1da177e4 LT |
2864 | &ipr_ioa_reset_attr, |
2865 | &ipr_update_fw_attr, | |
62275040 | 2866 | &ipr_ioa_cache_attr, |
1da177e4 LT |
2867 | NULL, |
2868 | }; | |
2869 | ||
2870 | #ifdef CONFIG_SCSI_IPR_DUMP | |
2871 | /** | |
2872 | * ipr_read_dump - Dump the adapter | |
2873 | * @kobj: kobject struct | |
2874 | * @buf: buffer | |
2875 | * @off: offset | |
2876 | * @count: buffer size | |
2877 | * | |
2878 | * Return value: | |
2879 | * number of bytes printed to buffer | |
2880 | **/ | |
2881 | static ssize_t ipr_read_dump(struct kobject *kobj, char *buf, | |
2882 | loff_t off, size_t count) | |
2883 | { | |
2884 | struct class_device *cdev = container_of(kobj,struct class_device,kobj); | |
2885 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2886 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2887 | struct ipr_dump *dump; | |
2888 | unsigned long lock_flags = 0; | |
2889 | char *src; | |
2890 | int len; | |
2891 | size_t rc = count; | |
2892 | ||
2893 | if (!capable(CAP_SYS_ADMIN)) | |
2894 | return -EACCES; | |
2895 | ||
2896 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2897 | dump = ioa_cfg->dump; | |
2898 | ||
2899 | if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { | |
2900 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2901 | return 0; | |
2902 | } | |
2903 | kref_get(&dump->kref); | |
2904 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2905 | ||
2906 | if (off > dump->driver_dump.hdr.len) { | |
2907 | kref_put(&dump->kref, ipr_release_dump); | |
2908 | return 0; | |
2909 | } | |
2910 | ||
2911 | if (off + count > dump->driver_dump.hdr.len) { | |
2912 | count = dump->driver_dump.hdr.len - off; | |
2913 | rc = count; | |
2914 | } | |
2915 | ||
2916 | if (count && off < sizeof(dump->driver_dump)) { | |
2917 | if (off + count > sizeof(dump->driver_dump)) | |
2918 | len = sizeof(dump->driver_dump) - off; | |
2919 | else | |
2920 | len = count; | |
2921 | src = (u8 *)&dump->driver_dump + off; | |
2922 | memcpy(buf, src, len); | |
2923 | buf += len; | |
2924 | off += len; | |
2925 | count -= len; | |
2926 | } | |
2927 | ||
2928 | off -= sizeof(dump->driver_dump); | |
2929 | ||
2930 | if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) { | |
2931 | if (off + count > offsetof(struct ipr_ioa_dump, ioa_data)) | |
2932 | len = offsetof(struct ipr_ioa_dump, ioa_data) - off; | |
2933 | else | |
2934 | len = count; | |
2935 | src = (u8 *)&dump->ioa_dump + off; | |
2936 | memcpy(buf, src, len); | |
2937 | buf += len; | |
2938 | off += len; | |
2939 | count -= len; | |
2940 | } | |
2941 | ||
2942 | off -= offsetof(struct ipr_ioa_dump, ioa_data); | |
2943 | ||
2944 | while (count) { | |
2945 | if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) | |
2946 | len = PAGE_ALIGN(off) - off; | |
2947 | else | |
2948 | len = count; | |
2949 | src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; | |
2950 | src += off & ~PAGE_MASK; | |
2951 | memcpy(buf, src, len); | |
2952 | buf += len; | |
2953 | off += len; | |
2954 | count -= len; | |
2955 | } | |
2956 | ||
2957 | kref_put(&dump->kref, ipr_release_dump); | |
2958 | return rc; | |
2959 | } | |
2960 | ||
2961 | /** | |
2962 | * ipr_alloc_dump - Prepare for adapter dump | |
2963 | * @ioa_cfg: ioa config struct | |
2964 | * | |
2965 | * Return value: | |
2966 | * 0 on success / other on failure | |
2967 | **/ | |
2968 | static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) | |
2969 | { | |
2970 | struct ipr_dump *dump; | |
2971 | unsigned long lock_flags = 0; | |
2972 | ||
2973 | ENTER; | |
0bc42e35 | 2974 | dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL); |
1da177e4 LT |
2975 | |
2976 | if (!dump) { | |
2977 | ipr_err("Dump memory allocation failed\n"); | |
2978 | return -ENOMEM; | |
2979 | } | |
2980 | ||
1da177e4 LT |
2981 | kref_init(&dump->kref); |
2982 | dump->ioa_cfg = ioa_cfg; | |
2983 | ||
2984 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2985 | ||
2986 | if (INACTIVE != ioa_cfg->sdt_state) { | |
2987 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2988 | kfree(dump); | |
2989 | return 0; | |
2990 | } | |
2991 | ||
2992 | ioa_cfg->dump = dump; | |
2993 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; | |
2994 | if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) { | |
2995 | ioa_cfg->dump_taken = 1; | |
2996 | schedule_work(&ioa_cfg->work_q); | |
2997 | } | |
2998 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2999 | ||
3000 | LEAVE; | |
3001 | return 0; | |
3002 | } | |
3003 | ||
3004 | /** | |
3005 | * ipr_free_dump - Free adapter dump memory | |
3006 | * @ioa_cfg: ioa config struct | |
3007 | * | |
3008 | * Return value: | |
3009 | * 0 on success / other on failure | |
3010 | **/ | |
3011 | static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) | |
3012 | { | |
3013 | struct ipr_dump *dump; | |
3014 | unsigned long lock_flags = 0; | |
3015 | ||
3016 | ENTER; | |
3017 | ||
3018 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3019 | dump = ioa_cfg->dump; | |
3020 | if (!dump) { | |
3021 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3022 | return 0; | |
3023 | } | |
3024 | ||
3025 | ioa_cfg->dump = NULL; | |
3026 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3027 | ||
3028 | kref_put(&dump->kref, ipr_release_dump); | |
3029 | ||
3030 | LEAVE; | |
3031 | return 0; | |
3032 | } | |
3033 | ||
3034 | /** | |
3035 | * ipr_write_dump - Setup dump state of adapter | |
3036 | * @kobj: kobject struct | |
3037 | * @buf: buffer | |
3038 | * @off: offset | |
3039 | * @count: buffer size | |
3040 | * | |
3041 | * Return value: | |
3042 | * number of bytes printed to buffer | |
3043 | **/ | |
3044 | static ssize_t ipr_write_dump(struct kobject *kobj, char *buf, | |
3045 | loff_t off, size_t count) | |
3046 | { | |
3047 | struct class_device *cdev = container_of(kobj,struct class_device,kobj); | |
3048 | struct Scsi_Host *shost = class_to_shost(cdev); | |
3049 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
3050 | int rc; | |
3051 | ||
3052 | if (!capable(CAP_SYS_ADMIN)) | |
3053 | return -EACCES; | |
3054 | ||
3055 | if (buf[0] == '1') | |
3056 | rc = ipr_alloc_dump(ioa_cfg); | |
3057 | else if (buf[0] == '0') | |
3058 | rc = ipr_free_dump(ioa_cfg); | |
3059 | else | |
3060 | return -EINVAL; | |
3061 | ||
3062 | if (rc) | |
3063 | return rc; | |
3064 | else | |
3065 | return count; | |
3066 | } | |
3067 | ||
3068 | static struct bin_attribute ipr_dump_attr = { | |
3069 | .attr = { | |
3070 | .name = "dump", | |
3071 | .mode = S_IRUSR | S_IWUSR, | |
3072 | }, | |
3073 | .size = 0, | |
3074 | .read = ipr_read_dump, | |
3075 | .write = ipr_write_dump | |
3076 | }; | |
3077 | #else | |
3078 | static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; | |
3079 | #endif | |
3080 | ||
3081 | /** | |
3082 | * ipr_change_queue_depth - Change the device's queue depth | |
3083 | * @sdev: scsi device struct | |
3084 | * @qdepth: depth to set | |
3085 | * | |
3086 | * Return value: | |
3087 | * actual depth set | |
3088 | **/ | |
3089 | static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth) | |
3090 | { | |
35a39691 BK |
3091 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
3092 | struct ipr_resource_entry *res; | |
3093 | unsigned long lock_flags = 0; | |
3094 | ||
3095 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3096 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
3097 | ||
3098 | if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN) | |
3099 | qdepth = IPR_MAX_CMD_PER_ATA_LUN; | |
3100 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3101 | ||
1da177e4 LT |
3102 | scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); |
3103 | return sdev->queue_depth; | |
3104 | } | |
3105 | ||
3106 | /** | |
3107 | * ipr_change_queue_type - Change the device's queue type | |
3108 | * @dsev: scsi device struct | |
3109 | * @tag_type: type of tags to use | |
3110 | * | |
3111 | * Return value: | |
3112 | * actual queue type set | |
3113 | **/ | |
3114 | static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type) | |
3115 | { | |
3116 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; | |
3117 | struct ipr_resource_entry *res; | |
3118 | unsigned long lock_flags = 0; | |
3119 | ||
3120 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3121 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
3122 | ||
3123 | if (res) { | |
3124 | if (ipr_is_gscsi(res) && sdev->tagged_supported) { | |
3125 | /* | |
3126 | * We don't bother quiescing the device here since the | |
3127 | * adapter firmware does it for us. | |
3128 | */ | |
3129 | scsi_set_tag_type(sdev, tag_type); | |
3130 | ||
3131 | if (tag_type) | |
3132 | scsi_activate_tcq(sdev, sdev->queue_depth); | |
3133 | else | |
3134 | scsi_deactivate_tcq(sdev, sdev->queue_depth); | |
3135 | } else | |
3136 | tag_type = 0; | |
3137 | } else | |
3138 | tag_type = 0; | |
3139 | ||
3140 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3141 | return tag_type; | |
3142 | } | |
3143 | ||
3144 | /** | |
3145 | * ipr_show_adapter_handle - Show the adapter's resource handle for this device | |
3146 | * @dev: device struct | |
3147 | * @buf: buffer | |
3148 | * | |
3149 | * Return value: | |
3150 | * number of bytes printed to buffer | |
3151 | **/ | |
10523b3b | 3152 | static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
3153 | { |
3154 | struct scsi_device *sdev = to_scsi_device(dev); | |
3155 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; | |
3156 | struct ipr_resource_entry *res; | |
3157 | unsigned long lock_flags = 0; | |
3158 | ssize_t len = -ENXIO; | |
3159 | ||
3160 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3161 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
3162 | if (res) | |
3163 | len = snprintf(buf, PAGE_SIZE, "%08X\n", res->cfgte.res_handle); | |
3164 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3165 | return len; | |
3166 | } | |
3167 | ||
3168 | static struct device_attribute ipr_adapter_handle_attr = { | |
3169 | .attr = { | |
3170 | .name = "adapter_handle", | |
3171 | .mode = S_IRUSR, | |
3172 | }, | |
3173 | .show = ipr_show_adapter_handle | |
3174 | }; | |
3175 | ||
3176 | static struct device_attribute *ipr_dev_attrs[] = { | |
3177 | &ipr_adapter_handle_attr, | |
3178 | NULL, | |
3179 | }; | |
3180 | ||
3181 | /** | |
3182 | * ipr_biosparam - Return the HSC mapping | |
3183 | * @sdev: scsi device struct | |
3184 | * @block_device: block device pointer | |
3185 | * @capacity: capacity of the device | |
3186 | * @parm: Array containing returned HSC values. | |
3187 | * | |
3188 | * This function generates the HSC parms that fdisk uses. | |
3189 | * We want to make sure we return something that places partitions | |
3190 | * on 4k boundaries for best performance with the IOA. | |
3191 | * | |
3192 | * Return value: | |
3193 | * 0 on success | |
3194 | **/ | |
3195 | static int ipr_biosparam(struct scsi_device *sdev, | |
3196 | struct block_device *block_device, | |
3197 | sector_t capacity, int *parm) | |
3198 | { | |
3199 | int heads, sectors; | |
3200 | sector_t cylinders; | |
3201 | ||
3202 | heads = 128; | |
3203 | sectors = 32; | |
3204 | ||
3205 | cylinders = capacity; | |
3206 | sector_div(cylinders, (128 * 32)); | |
3207 | ||
3208 | /* return result */ | |
3209 | parm[0] = heads; | |
3210 | parm[1] = sectors; | |
3211 | parm[2] = cylinders; | |
3212 | ||
3213 | return 0; | |
3214 | } | |
3215 | ||
35a39691 BK |
3216 | /** |
3217 | * ipr_find_starget - Find target based on bus/target. | |
3218 | * @starget: scsi target struct | |
3219 | * | |
3220 | * Return value: | |
3221 | * resource entry pointer if found / NULL if not found | |
3222 | **/ | |
3223 | static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget) | |
3224 | { | |
3225 | struct Scsi_Host *shost = dev_to_shost(&starget->dev); | |
3226 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; | |
3227 | struct ipr_resource_entry *res; | |
3228 | ||
3229 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3230 | if ((res->cfgte.res_addr.bus == starget->channel) && | |
3231 | (res->cfgte.res_addr.target == starget->id) && | |
3232 | (res->cfgte.res_addr.lun == 0)) { | |
3233 | return res; | |
3234 | } | |
3235 | } | |
3236 | ||
3237 | return NULL; | |
3238 | } | |
3239 | ||
3240 | static struct ata_port_info sata_port_info; | |
3241 | ||
3242 | /** | |
3243 | * ipr_target_alloc - Prepare for commands to a SCSI target | |
3244 | * @starget: scsi target struct | |
3245 | * | |
3246 | * If the device is a SATA device, this function allocates an | |
3247 | * ATA port with libata, else it does nothing. | |
3248 | * | |
3249 | * Return value: | |
3250 | * 0 on success / non-0 on failure | |
3251 | **/ | |
3252 | static int ipr_target_alloc(struct scsi_target *starget) | |
3253 | { | |
3254 | struct Scsi_Host *shost = dev_to_shost(&starget->dev); | |
3255 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; | |
3256 | struct ipr_sata_port *sata_port; | |
3257 | struct ata_port *ap; | |
3258 | struct ipr_resource_entry *res; | |
3259 | unsigned long lock_flags; | |
3260 | ||
3261 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3262 | res = ipr_find_starget(starget); | |
3263 | starget->hostdata = NULL; | |
3264 | ||
3265 | if (res && ipr_is_gata(res)) { | |
3266 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3267 | sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL); | |
3268 | if (!sata_port) | |
3269 | return -ENOMEM; | |
3270 | ||
3271 | ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost); | |
3272 | if (ap) { | |
3273 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3274 | sata_port->ioa_cfg = ioa_cfg; | |
3275 | sata_port->ap = ap; | |
3276 | sata_port->res = res; | |
3277 | ||
3278 | res->sata_port = sata_port; | |
3279 | ap->private_data = sata_port; | |
3280 | starget->hostdata = sata_port; | |
3281 | } else { | |
3282 | kfree(sata_port); | |
3283 | return -ENOMEM; | |
3284 | } | |
3285 | } | |
3286 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3287 | ||
3288 | return 0; | |
3289 | } | |
3290 | ||
3291 | /** | |
3292 | * ipr_target_destroy - Destroy a SCSI target | |
3293 | * @starget: scsi target struct | |
3294 | * | |
3295 | * If the device was a SATA device, this function frees the libata | |
3296 | * ATA port, else it does nothing. | |
3297 | * | |
3298 | **/ | |
3299 | static void ipr_target_destroy(struct scsi_target *starget) | |
3300 | { | |
3301 | struct ipr_sata_port *sata_port = starget->hostdata; | |
3302 | ||
3303 | if (sata_port) { | |
3304 | starget->hostdata = NULL; | |
3305 | ata_sas_port_destroy(sata_port->ap); | |
3306 | kfree(sata_port); | |
3307 | } | |
3308 | } | |
3309 | ||
3310 | /** | |
3311 | * ipr_find_sdev - Find device based on bus/target/lun. | |
3312 | * @sdev: scsi device struct | |
3313 | * | |
3314 | * Return value: | |
3315 | * resource entry pointer if found / NULL if not found | |
3316 | **/ | |
3317 | static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev) | |
3318 | { | |
3319 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
3320 | struct ipr_resource_entry *res; | |
3321 | ||
3322 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3323 | if ((res->cfgte.res_addr.bus == sdev->channel) && | |
3324 | (res->cfgte.res_addr.target == sdev->id) && | |
3325 | (res->cfgte.res_addr.lun == sdev->lun)) | |
3326 | return res; | |
3327 | } | |
3328 | ||
3329 | return NULL; | |
3330 | } | |
3331 | ||
1da177e4 LT |
3332 | /** |
3333 | * ipr_slave_destroy - Unconfigure a SCSI device | |
3334 | * @sdev: scsi device struct | |
3335 | * | |
3336 | * Return value: | |
3337 | * nothing | |
3338 | **/ | |
3339 | static void ipr_slave_destroy(struct scsi_device *sdev) | |
3340 | { | |
3341 | struct ipr_resource_entry *res; | |
3342 | struct ipr_ioa_cfg *ioa_cfg; | |
3343 | unsigned long lock_flags = 0; | |
3344 | ||
3345 | ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
3346 | ||
3347 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3348 | res = (struct ipr_resource_entry *) sdev->hostdata; | |
3349 | if (res) { | |
35a39691 BK |
3350 | if (res->sata_port) |
3351 | ata_port_disable(res->sata_port->ap); | |
1da177e4 LT |
3352 | sdev->hostdata = NULL; |
3353 | res->sdev = NULL; | |
35a39691 | 3354 | res->sata_port = NULL; |
1da177e4 LT |
3355 | } |
3356 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3357 | } | |
3358 | ||
3359 | /** | |
3360 | * ipr_slave_configure - Configure a SCSI device | |
3361 | * @sdev: scsi device struct | |
3362 | * | |
3363 | * This function configures the specified scsi device. | |
3364 | * | |
3365 | * Return value: | |
3366 | * 0 on success | |
3367 | **/ | |
3368 | static int ipr_slave_configure(struct scsi_device *sdev) | |
3369 | { | |
3370 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
3371 | struct ipr_resource_entry *res; | |
3372 | unsigned long lock_flags = 0; | |
3373 | ||
3374 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3375 | res = sdev->hostdata; | |
3376 | if (res) { | |
3377 | if (ipr_is_af_dasd_device(res)) | |
3378 | sdev->type = TYPE_RAID; | |
0726ce26 | 3379 | if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { |
1da177e4 | 3380 | sdev->scsi_level = 4; |
0726ce26 | 3381 | sdev->no_uld_attach = 1; |
3382 | } | |
1da177e4 LT |
3383 | if (ipr_is_vset_device(res)) { |
3384 | sdev->timeout = IPR_VSET_RW_TIMEOUT; | |
3385 | blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); | |
3386 | } | |
e4fbf44e | 3387 | if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)) |
1da177e4 | 3388 | sdev->allow_restart = 1; |
35a39691 BK |
3389 | if (ipr_is_gata(res) && res->sata_port) { |
3390 | scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN); | |
3391 | ata_sas_slave_configure(sdev, res->sata_port->ap); | |
3392 | } else { | |
3393 | scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); | |
3394 | } | |
1da177e4 LT |
3395 | } |
3396 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3397 | return 0; | |
3398 | } | |
3399 | ||
35a39691 BK |
3400 | /** |
3401 | * ipr_ata_slave_alloc - Prepare for commands to a SATA device | |
3402 | * @sdev: scsi device struct | |
3403 | * | |
3404 | * This function initializes an ATA port so that future commands | |
3405 | * sent through queuecommand will work. | |
3406 | * | |
3407 | * Return value: | |
3408 | * 0 on success | |
3409 | **/ | |
3410 | static int ipr_ata_slave_alloc(struct scsi_device *sdev) | |
3411 | { | |
3412 | struct ipr_sata_port *sata_port = NULL; | |
3413 | int rc = -ENXIO; | |
3414 | ||
3415 | ENTER; | |
3416 | if (sdev->sdev_target) | |
3417 | sata_port = sdev->sdev_target->hostdata; | |
3418 | if (sata_port) | |
3419 | rc = ata_sas_port_init(sata_port->ap); | |
3420 | if (rc) | |
3421 | ipr_slave_destroy(sdev); | |
3422 | ||
3423 | LEAVE; | |
3424 | return rc; | |
3425 | } | |
3426 | ||
1da177e4 LT |
3427 | /** |
3428 | * ipr_slave_alloc - Prepare for commands to a device. | |
3429 | * @sdev: scsi device struct | |
3430 | * | |
3431 | * This function saves a pointer to the resource entry | |
3432 | * in the scsi device struct if the device exists. We | |
3433 | * can then use this pointer in ipr_queuecommand when | |
3434 | * handling new commands. | |
3435 | * | |
3436 | * Return value: | |
692aebfc | 3437 | * 0 on success / -ENXIO if device does not exist |
1da177e4 LT |
3438 | **/ |
3439 | static int ipr_slave_alloc(struct scsi_device *sdev) | |
3440 | { | |
3441 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
3442 | struct ipr_resource_entry *res; | |
3443 | unsigned long lock_flags; | |
692aebfc | 3444 | int rc = -ENXIO; |
1da177e4 LT |
3445 | |
3446 | sdev->hostdata = NULL; | |
3447 | ||
3448 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3449 | ||
35a39691 BK |
3450 | res = ipr_find_sdev(sdev); |
3451 | if (res) { | |
3452 | res->sdev = sdev; | |
3453 | res->add_to_ml = 0; | |
3454 | res->in_erp = 0; | |
3455 | sdev->hostdata = res; | |
3456 | if (!ipr_is_naca_model(res)) | |
3457 | res->needs_sync_complete = 1; | |
3458 | rc = 0; | |
3459 | if (ipr_is_gata(res)) { | |
3460 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3461 | return ipr_ata_slave_alloc(sdev); | |
1da177e4 LT |
3462 | } |
3463 | } | |
3464 | ||
3465 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3466 | ||
692aebfc | 3467 | return rc; |
1da177e4 LT |
3468 | } |
3469 | ||
3470 | /** | |
3471 | * ipr_eh_host_reset - Reset the host adapter | |
3472 | * @scsi_cmd: scsi command struct | |
3473 | * | |
3474 | * Return value: | |
3475 | * SUCCESS / FAILED | |
3476 | **/ | |
df0ae249 | 3477 | static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd) |
1da177e4 LT |
3478 | { |
3479 | struct ipr_ioa_cfg *ioa_cfg; | |
3480 | int rc; | |
3481 | ||
3482 | ENTER; | |
3483 | ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; | |
3484 | ||
3485 | dev_err(&ioa_cfg->pdev->dev, | |
3486 | "Adapter being reset as a result of error recovery.\n"); | |
3487 | ||
3488 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
3489 | ioa_cfg->sdt_state = GET_DUMP; | |
3490 | ||
3491 | rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV); | |
3492 | ||
3493 | LEAVE; | |
3494 | return rc; | |
3495 | } | |
3496 | ||
df0ae249 JG |
3497 | static int ipr_eh_host_reset(struct scsi_cmnd * cmd) |
3498 | { | |
3499 | int rc; | |
3500 | ||
3501 | spin_lock_irq(cmd->device->host->host_lock); | |
3502 | rc = __ipr_eh_host_reset(cmd); | |
3503 | spin_unlock_irq(cmd->device->host->host_lock); | |
3504 | ||
3505 | return rc; | |
3506 | } | |
3507 | ||
c6513096 BK |
3508 | /** |
3509 | * ipr_device_reset - Reset the device | |
3510 | * @ioa_cfg: ioa config struct | |
3511 | * @res: resource entry struct | |
3512 | * | |
3513 | * This function issues a device reset to the affected device. | |
3514 | * If the device is a SCSI device, a LUN reset will be sent | |
3515 | * to the device first. If that does not work, a target reset | |
35a39691 BK |
3516 | * will be sent. If the device is a SATA device, a PHY reset will |
3517 | * be sent. | |
c6513096 BK |
3518 | * |
3519 | * Return value: | |
3520 | * 0 on success / non-zero on failure | |
3521 | **/ | |
3522 | static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg, | |
3523 | struct ipr_resource_entry *res) | |
3524 | { | |
3525 | struct ipr_cmnd *ipr_cmd; | |
3526 | struct ipr_ioarcb *ioarcb; | |
3527 | struct ipr_cmd_pkt *cmd_pkt; | |
35a39691 | 3528 | struct ipr_ioarcb_ata_regs *regs; |
c6513096 BK |
3529 | u32 ioasc; |
3530 | ||
3531 | ENTER; | |
3532 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
3533 | ioarcb = &ipr_cmd->ioarcb; | |
3534 | cmd_pkt = &ioarcb->cmd_pkt; | |
35a39691 | 3535 | regs = &ioarcb->add_data.u.regs; |
c6513096 BK |
3536 | |
3537 | ioarcb->res_handle = res->cfgte.res_handle; | |
3538 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
3539 | cmd_pkt->cdb[0] = IPR_RESET_DEVICE; | |
35a39691 BK |
3540 | if (ipr_is_gata(res)) { |
3541 | cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET; | |
3542 | ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(regs->flags)); | |
3543 | regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; | |
3544 | } | |
c6513096 BK |
3545 | |
3546 | ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); | |
3547 | ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
3548 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
35a39691 BK |
3549 | if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) |
3550 | memcpy(&res->sata_port->ioasa, &ipr_cmd->ioasa.u.gata, | |
3551 | sizeof(struct ipr_ioasa_gata)); | |
c6513096 BK |
3552 | |
3553 | LEAVE; | |
3554 | return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0); | |
3555 | } | |
3556 | ||
35a39691 BK |
3557 | /** |
3558 | * ipr_sata_reset - Reset the SATA port | |
3559 | * @ap: SATA port to reset | |
3560 | * @classes: class of the attached device | |
3561 | * | |
3562 | * This function issues a SATA phy reset to the affected ATA port. | |
3563 | * | |
3564 | * Return value: | |
3565 | * 0 on success / non-zero on failure | |
3566 | **/ | |
3567 | static int ipr_sata_reset(struct ata_port *ap, unsigned int *classes) | |
3568 | { | |
3569 | struct ipr_sata_port *sata_port = ap->private_data; | |
3570 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; | |
3571 | struct ipr_resource_entry *res; | |
3572 | unsigned long lock_flags = 0; | |
3573 | int rc = -ENXIO; | |
3574 | ||
3575 | ENTER; | |
3576 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
73d98ff0 BK |
3577 | while(ioa_cfg->in_reset_reload) { |
3578 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3579 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
3580 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3581 | } | |
3582 | ||
35a39691 BK |
3583 | res = sata_port->res; |
3584 | if (res) { | |
3585 | rc = ipr_device_reset(ioa_cfg, res); | |
3586 | switch(res->cfgte.proto) { | |
3587 | case IPR_PROTO_SATA: | |
3588 | case IPR_PROTO_SAS_STP: | |
3589 | *classes = ATA_DEV_ATA; | |
3590 | break; | |
3591 | case IPR_PROTO_SATA_ATAPI: | |
3592 | case IPR_PROTO_SAS_STP_ATAPI: | |
3593 | *classes = ATA_DEV_ATAPI; | |
3594 | break; | |
3595 | default: | |
3596 | *classes = ATA_DEV_UNKNOWN; | |
3597 | break; | |
3598 | }; | |
3599 | } | |
3600 | ||
3601 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3602 | LEAVE; | |
3603 | return rc; | |
3604 | } | |
3605 | ||
1da177e4 LT |
3606 | /** |
3607 | * ipr_eh_dev_reset - Reset the device | |
3608 | * @scsi_cmd: scsi command struct | |
3609 | * | |
3610 | * This function issues a device reset to the affected device. | |
3611 | * A LUN reset will be sent to the device first. If that does | |
3612 | * not work, a target reset will be sent. | |
3613 | * | |
3614 | * Return value: | |
3615 | * SUCCESS / FAILED | |
3616 | **/ | |
94d0e7b8 | 3617 | static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd) |
1da177e4 LT |
3618 | { |
3619 | struct ipr_cmnd *ipr_cmd; | |
3620 | struct ipr_ioa_cfg *ioa_cfg; | |
3621 | struct ipr_resource_entry *res; | |
35a39691 BK |
3622 | struct ata_port *ap; |
3623 | int rc = 0; | |
1da177e4 LT |
3624 | |
3625 | ENTER; | |
3626 | ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; | |
3627 | res = scsi_cmd->device->hostdata; | |
3628 | ||
eeb88307 | 3629 | if (!res) |
1da177e4 LT |
3630 | return FAILED; |
3631 | ||
3632 | /* | |
3633 | * If we are currently going through reset/reload, return failed. This will force the | |
3634 | * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the | |
3635 | * reset to complete | |
3636 | */ | |
3637 | if (ioa_cfg->in_reset_reload) | |
3638 | return FAILED; | |
3639 | if (ioa_cfg->ioa_is_dead) | |
3640 | return FAILED; | |
3641 | ||
3642 | list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { | |
3643 | if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) { | |
3644 | if (ipr_cmd->scsi_cmd) | |
3645 | ipr_cmd->done = ipr_scsi_eh_done; | |
3646 | } | |
3647 | } | |
3648 | ||
3649 | res->resetting_device = 1; | |
fb3ed3cb | 3650 | scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n"); |
35a39691 BK |
3651 | |
3652 | if (ipr_is_gata(res) && res->sata_port) { | |
3653 | ap = res->sata_port->ap; | |
3654 | spin_unlock_irq(scsi_cmd->device->host->host_lock); | |
3655 | ata_do_eh(ap, NULL, NULL, ipr_sata_reset, NULL); | |
3656 | spin_lock_irq(scsi_cmd->device->host->host_lock); | |
3657 | } else | |
3658 | rc = ipr_device_reset(ioa_cfg, res); | |
1da177e4 LT |
3659 | res->resetting_device = 0; |
3660 | ||
1da177e4 | 3661 | LEAVE; |
c6513096 | 3662 | return (rc ? FAILED : SUCCESS); |
1da177e4 LT |
3663 | } |
3664 | ||
94d0e7b8 JG |
3665 | static int ipr_eh_dev_reset(struct scsi_cmnd * cmd) |
3666 | { | |
3667 | int rc; | |
3668 | ||
3669 | spin_lock_irq(cmd->device->host->host_lock); | |
3670 | rc = __ipr_eh_dev_reset(cmd); | |
3671 | spin_unlock_irq(cmd->device->host->host_lock); | |
3672 | ||
3673 | return rc; | |
3674 | } | |
3675 | ||
1da177e4 LT |
3676 | /** |
3677 | * ipr_bus_reset_done - Op done function for bus reset. | |
3678 | * @ipr_cmd: ipr command struct | |
3679 | * | |
3680 | * This function is the op done function for a bus reset | |
3681 | * | |
3682 | * Return value: | |
3683 | * none | |
3684 | **/ | |
3685 | static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) | |
3686 | { | |
3687 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
3688 | struct ipr_resource_entry *res; | |
3689 | ||
3690 | ENTER; | |
3691 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3692 | if (!memcmp(&res->cfgte.res_handle, &ipr_cmd->ioarcb.res_handle, | |
3693 | sizeof(res->cfgte.res_handle))) { | |
3694 | scsi_report_bus_reset(ioa_cfg->host, res->cfgte.res_addr.bus); | |
3695 | break; | |
3696 | } | |
3697 | } | |
3698 | ||
3699 | /* | |
3700 | * If abort has not completed, indicate the reset has, else call the | |
3701 | * abort's done function to wake the sleeping eh thread | |
3702 | */ | |
3703 | if (ipr_cmd->sibling->sibling) | |
3704 | ipr_cmd->sibling->sibling = NULL; | |
3705 | else | |
3706 | ipr_cmd->sibling->done(ipr_cmd->sibling); | |
3707 | ||
3708 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
3709 | LEAVE; | |
3710 | } | |
3711 | ||
3712 | /** | |
3713 | * ipr_abort_timeout - An abort task has timed out | |
3714 | * @ipr_cmd: ipr command struct | |
3715 | * | |
3716 | * This function handles when an abort task times out. If this | |
3717 | * happens we issue a bus reset since we have resources tied | |
3718 | * up that must be freed before returning to the midlayer. | |
3719 | * | |
3720 | * Return value: | |
3721 | * none | |
3722 | **/ | |
3723 | static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd) | |
3724 | { | |
3725 | struct ipr_cmnd *reset_cmd; | |
3726 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
3727 | struct ipr_cmd_pkt *cmd_pkt; | |
3728 | unsigned long lock_flags = 0; | |
3729 | ||
3730 | ENTER; | |
3731 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3732 | if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { | |
3733 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3734 | return; | |
3735 | } | |
3736 | ||
fb3ed3cb | 3737 | sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n"); |
1da177e4 LT |
3738 | reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
3739 | ipr_cmd->sibling = reset_cmd; | |
3740 | reset_cmd->sibling = ipr_cmd; | |
3741 | reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; | |
3742 | cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; | |
3743 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
3744 | cmd_pkt->cdb[0] = IPR_RESET_DEVICE; | |
3745 | cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; | |
3746 | ||
3747 | ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); | |
3748 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3749 | LEAVE; | |
3750 | } | |
3751 | ||
3752 | /** | |
3753 | * ipr_cancel_op - Cancel specified op | |
3754 | * @scsi_cmd: scsi command struct | |
3755 | * | |
3756 | * This function cancels specified op. | |
3757 | * | |
3758 | * Return value: | |
3759 | * SUCCESS / FAILED | |
3760 | **/ | |
3761 | static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd) | |
3762 | { | |
3763 | struct ipr_cmnd *ipr_cmd; | |
3764 | struct ipr_ioa_cfg *ioa_cfg; | |
3765 | struct ipr_resource_entry *res; | |
3766 | struct ipr_cmd_pkt *cmd_pkt; | |
3767 | u32 ioasc; | |
3768 | int op_found = 0; | |
3769 | ||
3770 | ENTER; | |
3771 | ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; | |
3772 | res = scsi_cmd->device->hostdata; | |
3773 | ||
8fa728a2 JG |
3774 | /* If we are currently going through reset/reload, return failed. |
3775 | * This will force the mid-layer to call ipr_eh_host_reset, | |
3776 | * which will then go to sleep and wait for the reset to complete | |
3777 | */ | |
3778 | if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead) | |
3779 | return FAILED; | |
04d9768f | 3780 | if (!res || !ipr_is_gscsi(res)) |
1da177e4 LT |
3781 | return FAILED; |
3782 | ||
3783 | list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { | |
3784 | if (ipr_cmd->scsi_cmd == scsi_cmd) { | |
3785 | ipr_cmd->done = ipr_scsi_eh_done; | |
3786 | op_found = 1; | |
3787 | break; | |
3788 | } | |
3789 | } | |
3790 | ||
3791 | if (!op_found) | |
3792 | return SUCCESS; | |
3793 | ||
3794 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
3795 | ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle; | |
3796 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; | |
3797 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
3798 | cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; | |
3799 | ipr_cmd->u.sdev = scsi_cmd->device; | |
3800 | ||
fb3ed3cb BK |
3801 | scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n", |
3802 | scsi_cmd->cmnd[0]); | |
1da177e4 LT |
3803 | ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); |
3804 | ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
3805 | ||
3806 | /* | |
3807 | * If the abort task timed out and we sent a bus reset, we will get | |
3808 | * one the following responses to the abort | |
3809 | */ | |
3810 | if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { | |
3811 | ioasc = 0; | |
3812 | ipr_trace; | |
3813 | } | |
3814 | ||
3815 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
ee0a90fa | 3816 | if (!ipr_is_naca_model(res)) |
3817 | res->needs_sync_complete = 1; | |
1da177e4 LT |
3818 | |
3819 | LEAVE; | |
3820 | return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS); | |
3821 | } | |
3822 | ||
3823 | /** | |
3824 | * ipr_eh_abort - Abort a single op | |
3825 | * @scsi_cmd: scsi command struct | |
3826 | * | |
3827 | * Return value: | |
3828 | * SUCCESS / FAILED | |
3829 | **/ | |
3830 | static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd) | |
3831 | { | |
8fa728a2 JG |
3832 | unsigned long flags; |
3833 | int rc; | |
1da177e4 LT |
3834 | |
3835 | ENTER; | |
1da177e4 | 3836 | |
8fa728a2 JG |
3837 | spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); |
3838 | rc = ipr_cancel_op(scsi_cmd); | |
3839 | spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags); | |
1da177e4 LT |
3840 | |
3841 | LEAVE; | |
8fa728a2 | 3842 | return rc; |
1da177e4 LT |
3843 | } |
3844 | ||
3845 | /** | |
3846 | * ipr_handle_other_interrupt - Handle "other" interrupts | |
3847 | * @ioa_cfg: ioa config struct | |
3848 | * @int_reg: interrupt register | |
3849 | * | |
3850 | * Return value: | |
3851 | * IRQ_NONE / IRQ_HANDLED | |
3852 | **/ | |
3853 | static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, | |
3854 | volatile u32 int_reg) | |
3855 | { | |
3856 | irqreturn_t rc = IRQ_HANDLED; | |
3857 | ||
3858 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { | |
3859 | /* Mask the interrupt */ | |
3860 | writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg); | |
3861 | ||
3862 | /* Clear the interrupt */ | |
3863 | writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg); | |
3864 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
3865 | ||
3866 | list_del(&ioa_cfg->reset_cmd->queue); | |
3867 | del_timer(&ioa_cfg->reset_cmd->timer); | |
3868 | ipr_reset_ioa_job(ioa_cfg->reset_cmd); | |
3869 | } else { | |
3870 | if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) | |
3871 | ioa_cfg->ioa_unit_checked = 1; | |
3872 | else | |
3873 | dev_err(&ioa_cfg->pdev->dev, | |
3874 | "Permanent IOA failure. 0x%08X\n", int_reg); | |
3875 | ||
3876 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
3877 | ioa_cfg->sdt_state = GET_DUMP; | |
3878 | ||
3879 | ipr_mask_and_clear_interrupts(ioa_cfg, ~0); | |
3880 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
3881 | } | |
3882 | ||
3883 | return rc; | |
3884 | } | |
3885 | ||
3886 | /** | |
3887 | * ipr_isr - Interrupt service routine | |
3888 | * @irq: irq number | |
3889 | * @devp: pointer to ioa config struct | |
1da177e4 LT |
3890 | * |
3891 | * Return value: | |
3892 | * IRQ_NONE / IRQ_HANDLED | |
3893 | **/ | |
7d12e780 | 3894 | static irqreturn_t ipr_isr(int irq, void *devp) |
1da177e4 LT |
3895 | { |
3896 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; | |
3897 | unsigned long lock_flags = 0; | |
3898 | volatile u32 int_reg, int_mask_reg; | |
3899 | u32 ioasc; | |
3900 | u16 cmd_index; | |
3901 | struct ipr_cmnd *ipr_cmd; | |
3902 | irqreturn_t rc = IRQ_NONE; | |
3903 | ||
3904 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3905 | ||
3906 | /* If interrupts are disabled, ignore the interrupt */ | |
3907 | if (!ioa_cfg->allow_interrupts) { | |
3908 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3909 | return IRQ_NONE; | |
3910 | } | |
3911 | ||
3912 | int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
3913 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; | |
3914 | ||
3915 | /* If an interrupt on the adapter did not occur, ignore it */ | |
3916 | if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) { | |
3917 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3918 | return IRQ_NONE; | |
3919 | } | |
3920 | ||
3921 | while (1) { | |
3922 | ipr_cmd = NULL; | |
3923 | ||
3924 | while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == | |
3925 | ioa_cfg->toggle_bit) { | |
3926 | ||
3927 | cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) & | |
3928 | IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; | |
3929 | ||
3930 | if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) { | |
3931 | ioa_cfg->errors_logged++; | |
3932 | dev_err(&ioa_cfg->pdev->dev, "Invalid response handle from IOA\n"); | |
3933 | ||
3934 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
3935 | ioa_cfg->sdt_state = GET_DUMP; | |
3936 | ||
3937 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
3938 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3939 | return IRQ_HANDLED; | |
3940 | } | |
3941 | ||
3942 | ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; | |
3943 | ||
3944 | ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
3945 | ||
3946 | ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc); | |
3947 | ||
3948 | list_del(&ipr_cmd->queue); | |
3949 | del_timer(&ipr_cmd->timer); | |
3950 | ipr_cmd->done(ipr_cmd); | |
3951 | ||
3952 | rc = IRQ_HANDLED; | |
3953 | ||
3954 | if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) { | |
3955 | ioa_cfg->hrrq_curr++; | |
3956 | } else { | |
3957 | ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; | |
3958 | ioa_cfg->toggle_bit ^= 1u; | |
3959 | } | |
3960 | } | |
3961 | ||
3962 | if (ipr_cmd != NULL) { | |
3963 | /* Clear the PCI interrupt */ | |
3964 | writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg); | |
3965 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; | |
3966 | } else | |
3967 | break; | |
3968 | } | |
3969 | ||
3970 | if (unlikely(rc == IRQ_NONE)) | |
3971 | rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); | |
3972 | ||
3973 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3974 | return rc; | |
3975 | } | |
3976 | ||
3977 | /** | |
3978 | * ipr_build_ioadl - Build a scatter/gather list and map the buffer | |
3979 | * @ioa_cfg: ioa config struct | |
3980 | * @ipr_cmd: ipr command struct | |
3981 | * | |
3982 | * Return value: | |
3983 | * 0 on success / -1 on failure | |
3984 | **/ | |
3985 | static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, | |
3986 | struct ipr_cmnd *ipr_cmd) | |
3987 | { | |
3988 | int i; | |
3989 | struct scatterlist *sglist; | |
3990 | u32 length; | |
3991 | u32 ioadl_flags = 0; | |
3992 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
3993 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
3994 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
3995 | ||
3996 | length = scsi_cmd->request_bufflen; | |
3997 | ||
3998 | if (length == 0) | |
3999 | return 0; | |
4000 | ||
4001 | if (scsi_cmd->use_sg) { | |
4002 | ipr_cmd->dma_use_sg = pci_map_sg(ioa_cfg->pdev, | |
4003 | scsi_cmd->request_buffer, | |
4004 | scsi_cmd->use_sg, | |
4005 | scsi_cmd->sc_data_direction); | |
4006 | ||
4007 | if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { | |
4008 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; | |
4009 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
4010 | ioarcb->write_data_transfer_length = cpu_to_be32(length); | |
4011 | ioarcb->write_ioadl_len = | |
4012 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
4013 | } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
4014 | ioadl_flags = IPR_IOADL_FLAGS_READ; | |
4015 | ioarcb->read_data_transfer_length = cpu_to_be32(length); | |
4016 | ioarcb->read_ioadl_len = | |
4017 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
4018 | } | |
4019 | ||
4020 | sglist = scsi_cmd->request_buffer; | |
4021 | ||
4022 | for (i = 0; i < ipr_cmd->dma_use_sg; i++) { | |
4023 | ioadl[i].flags_and_data_len = | |
4024 | cpu_to_be32(ioadl_flags | sg_dma_len(&sglist[i])); | |
4025 | ioadl[i].address = | |
4026 | cpu_to_be32(sg_dma_address(&sglist[i])); | |
4027 | } | |
4028 | ||
4029 | if (likely(ipr_cmd->dma_use_sg)) { | |
4030 | ioadl[i-1].flags_and_data_len |= | |
4031 | cpu_to_be32(IPR_IOADL_FLAGS_LAST); | |
4032 | return 0; | |
4033 | } else | |
4034 | dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); | |
4035 | } else { | |
4036 | if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { | |
4037 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; | |
4038 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
4039 | ioarcb->write_data_transfer_length = cpu_to_be32(length); | |
4040 | ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
4041 | } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
4042 | ioadl_flags = IPR_IOADL_FLAGS_READ; | |
4043 | ioarcb->read_data_transfer_length = cpu_to_be32(length); | |
4044 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
4045 | } | |
4046 | ||
4047 | ipr_cmd->dma_handle = pci_map_single(ioa_cfg->pdev, | |
4048 | scsi_cmd->request_buffer, length, | |
4049 | scsi_cmd->sc_data_direction); | |
4050 | ||
4051 | if (likely(!pci_dma_mapping_error(ipr_cmd->dma_handle))) { | |
4052 | ipr_cmd->dma_use_sg = 1; | |
4053 | ioadl[0].flags_and_data_len = | |
4054 | cpu_to_be32(ioadl_flags | length | IPR_IOADL_FLAGS_LAST); | |
4055 | ioadl[0].address = cpu_to_be32(ipr_cmd->dma_handle); | |
4056 | return 0; | |
4057 | } else | |
4058 | dev_err(&ioa_cfg->pdev->dev, "pci_map_single failed!\n"); | |
4059 | } | |
4060 | ||
4061 | return -1; | |
4062 | } | |
4063 | ||
4064 | /** | |
4065 | * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes | |
4066 | * @scsi_cmd: scsi command struct | |
4067 | * | |
4068 | * Return value: | |
4069 | * task attributes | |
4070 | **/ | |
4071 | static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd) | |
4072 | { | |
4073 | u8 tag[2]; | |
4074 | u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK; | |
4075 | ||
4076 | if (scsi_populate_tag_msg(scsi_cmd, tag)) { | |
4077 | switch (tag[0]) { | |
4078 | case MSG_SIMPLE_TAG: | |
4079 | rc = IPR_FLAGS_LO_SIMPLE_TASK; | |
4080 | break; | |
4081 | case MSG_HEAD_TAG: | |
4082 | rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK; | |
4083 | break; | |
4084 | case MSG_ORDERED_TAG: | |
4085 | rc = IPR_FLAGS_LO_ORDERED_TASK; | |
4086 | break; | |
4087 | }; | |
4088 | } | |
4089 | ||
4090 | return rc; | |
4091 | } | |
4092 | ||
4093 | /** | |
4094 | * ipr_erp_done - Process completion of ERP for a device | |
4095 | * @ipr_cmd: ipr command struct | |
4096 | * | |
4097 | * This function copies the sense buffer into the scsi_cmd | |
4098 | * struct and pushes the scsi_done function. | |
4099 | * | |
4100 | * Return value: | |
4101 | * nothing | |
4102 | **/ | |
4103 | static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) | |
4104 | { | |
4105 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
4106 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; | |
4107 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4108 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
4109 | ||
4110 | if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { | |
4111 | scsi_cmd->result |= (DID_ERROR << 16); | |
fb3ed3cb BK |
4112 | scmd_printk(KERN_ERR, scsi_cmd, |
4113 | "Request Sense failed with IOASC: 0x%08X\n", ioasc); | |
1da177e4 LT |
4114 | } else { |
4115 | memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, | |
4116 | SCSI_SENSE_BUFFERSIZE); | |
4117 | } | |
4118 | ||
4119 | if (res) { | |
ee0a90fa | 4120 | if (!ipr_is_naca_model(res)) |
4121 | res->needs_sync_complete = 1; | |
1da177e4 LT |
4122 | res->in_erp = 0; |
4123 | } | |
4124 | ipr_unmap_sglist(ioa_cfg, ipr_cmd); | |
4125 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4126 | scsi_cmd->scsi_done(scsi_cmd); | |
4127 | } | |
4128 | ||
4129 | /** | |
4130 | * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP | |
4131 | * @ipr_cmd: ipr command struct | |
4132 | * | |
4133 | * Return value: | |
4134 | * none | |
4135 | **/ | |
4136 | static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) | |
4137 | { | |
4138 | struct ipr_ioarcb *ioarcb; | |
4139 | struct ipr_ioasa *ioasa; | |
4140 | ||
4141 | ioarcb = &ipr_cmd->ioarcb; | |
4142 | ioasa = &ipr_cmd->ioasa; | |
4143 | ||
4144 | memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); | |
4145 | ioarcb->write_data_transfer_length = 0; | |
4146 | ioarcb->read_data_transfer_length = 0; | |
4147 | ioarcb->write_ioadl_len = 0; | |
4148 | ioarcb->read_ioadl_len = 0; | |
4149 | ioasa->ioasc = 0; | |
4150 | ioasa->residual_data_len = 0; | |
4151 | } | |
4152 | ||
4153 | /** | |
4154 | * ipr_erp_request_sense - Send request sense to a device | |
4155 | * @ipr_cmd: ipr command struct | |
4156 | * | |
4157 | * This function sends a request sense to a device as a result | |
4158 | * of a check condition. | |
4159 | * | |
4160 | * Return value: | |
4161 | * nothing | |
4162 | **/ | |
4163 | static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) | |
4164 | { | |
4165 | struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; | |
4166 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
4167 | ||
4168 | if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { | |
4169 | ipr_erp_done(ipr_cmd); | |
4170 | return; | |
4171 | } | |
4172 | ||
4173 | ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); | |
4174 | ||
4175 | cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; | |
4176 | cmd_pkt->cdb[0] = REQUEST_SENSE; | |
4177 | cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; | |
4178 | cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; | |
4179 | cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; | |
4180 | cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); | |
4181 | ||
4182 | ipr_cmd->ioadl[0].flags_and_data_len = | |
4183 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | SCSI_SENSE_BUFFERSIZE); | |
4184 | ipr_cmd->ioadl[0].address = | |
4185 | cpu_to_be32(ipr_cmd->sense_buffer_dma); | |
4186 | ||
4187 | ipr_cmd->ioarcb.read_ioadl_len = | |
4188 | cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
4189 | ipr_cmd->ioarcb.read_data_transfer_length = | |
4190 | cpu_to_be32(SCSI_SENSE_BUFFERSIZE); | |
4191 | ||
4192 | ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout, | |
4193 | IPR_REQUEST_SENSE_TIMEOUT * 2); | |
4194 | } | |
4195 | ||
4196 | /** | |
4197 | * ipr_erp_cancel_all - Send cancel all to a device | |
4198 | * @ipr_cmd: ipr command struct | |
4199 | * | |
4200 | * This function sends a cancel all to a device to clear the | |
4201 | * queue. If we are running TCQ on the device, QERR is set to 1, | |
4202 | * which means all outstanding ops have been dropped on the floor. | |
4203 | * Cancel all will return them to us. | |
4204 | * | |
4205 | * Return value: | |
4206 | * nothing | |
4207 | **/ | |
4208 | static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) | |
4209 | { | |
4210 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
4211 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; | |
4212 | struct ipr_cmd_pkt *cmd_pkt; | |
4213 | ||
4214 | res->in_erp = 1; | |
4215 | ||
4216 | ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); | |
4217 | ||
4218 | if (!scsi_get_tag_type(scsi_cmd->device)) { | |
4219 | ipr_erp_request_sense(ipr_cmd); | |
4220 | return; | |
4221 | } | |
4222 | ||
4223 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; | |
4224 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
4225 | cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; | |
4226 | ||
4227 | ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout, | |
4228 | IPR_CANCEL_ALL_TIMEOUT); | |
4229 | } | |
4230 | ||
4231 | /** | |
4232 | * ipr_dump_ioasa - Dump contents of IOASA | |
4233 | * @ioa_cfg: ioa config struct | |
4234 | * @ipr_cmd: ipr command struct | |
fe964d0a | 4235 | * @res: resource entry struct |
1da177e4 LT |
4236 | * |
4237 | * This function is invoked by the interrupt handler when ops | |
4238 | * fail. It will log the IOASA if appropriate. Only called | |
4239 | * for GPDD ops. | |
4240 | * | |
4241 | * Return value: | |
4242 | * none | |
4243 | **/ | |
4244 | static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, | |
fe964d0a | 4245 | struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res) |
1da177e4 LT |
4246 | { |
4247 | int i; | |
4248 | u16 data_len; | |
4249 | u32 ioasc; | |
4250 | struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; | |
4251 | __be32 *ioasa_data = (__be32 *)ioasa; | |
4252 | int error_index; | |
4253 | ||
4254 | ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK; | |
4255 | ||
4256 | if (0 == ioasc) | |
4257 | return; | |
4258 | ||
4259 | if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) | |
4260 | return; | |
4261 | ||
4262 | error_index = ipr_get_error(ioasc); | |
4263 | ||
4264 | if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { | |
4265 | /* Don't log an error if the IOA already logged one */ | |
4266 | if (ioasa->ilid != 0) | |
4267 | return; | |
4268 | ||
4269 | if (ipr_error_table[error_index].log_ioasa == 0) | |
4270 | return; | |
4271 | } | |
4272 | ||
fe964d0a | 4273 | ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error); |
1da177e4 LT |
4274 | |
4275 | if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len)) | |
4276 | data_len = sizeof(struct ipr_ioasa); | |
4277 | else | |
4278 | data_len = be16_to_cpu(ioasa->ret_stat_len); | |
4279 | ||
4280 | ipr_err("IOASA Dump:\n"); | |
4281 | ||
4282 | for (i = 0; i < data_len / 4; i += 4) { | |
4283 | ipr_err("%08X: %08X %08X %08X %08X\n", i*4, | |
4284 | be32_to_cpu(ioasa_data[i]), | |
4285 | be32_to_cpu(ioasa_data[i+1]), | |
4286 | be32_to_cpu(ioasa_data[i+2]), | |
4287 | be32_to_cpu(ioasa_data[i+3])); | |
4288 | } | |
4289 | } | |
4290 | ||
4291 | /** | |
4292 | * ipr_gen_sense - Generate SCSI sense data from an IOASA | |
4293 | * @ioasa: IOASA | |
4294 | * @sense_buf: sense data buffer | |
4295 | * | |
4296 | * Return value: | |
4297 | * none | |
4298 | **/ | |
4299 | static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) | |
4300 | { | |
4301 | u32 failing_lba; | |
4302 | u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; | |
4303 | struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; | |
4304 | struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; | |
4305 | u32 ioasc = be32_to_cpu(ioasa->ioasc); | |
4306 | ||
4307 | memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); | |
4308 | ||
4309 | if (ioasc >= IPR_FIRST_DRIVER_IOASC) | |
4310 | return; | |
4311 | ||
4312 | ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; | |
4313 | ||
4314 | if (ipr_is_vset_device(res) && | |
4315 | ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && | |
4316 | ioasa->u.vset.failing_lba_hi != 0) { | |
4317 | sense_buf[0] = 0x72; | |
4318 | sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); | |
4319 | sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); | |
4320 | sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); | |
4321 | ||
4322 | sense_buf[7] = 12; | |
4323 | sense_buf[8] = 0; | |
4324 | sense_buf[9] = 0x0A; | |
4325 | sense_buf[10] = 0x80; | |
4326 | ||
4327 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); | |
4328 | ||
4329 | sense_buf[12] = (failing_lba & 0xff000000) >> 24; | |
4330 | sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; | |
4331 | sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; | |
4332 | sense_buf[15] = failing_lba & 0x000000ff; | |
4333 | ||
4334 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); | |
4335 | ||
4336 | sense_buf[16] = (failing_lba & 0xff000000) >> 24; | |
4337 | sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; | |
4338 | sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; | |
4339 | sense_buf[19] = failing_lba & 0x000000ff; | |
4340 | } else { | |
4341 | sense_buf[0] = 0x70; | |
4342 | sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); | |
4343 | sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); | |
4344 | sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); | |
4345 | ||
4346 | /* Illegal request */ | |
4347 | if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && | |
4348 | (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) { | |
4349 | sense_buf[7] = 10; /* additional length */ | |
4350 | ||
4351 | /* IOARCB was in error */ | |
4352 | if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) | |
4353 | sense_buf[15] = 0xC0; | |
4354 | else /* Parameter data was invalid */ | |
4355 | sense_buf[15] = 0x80; | |
4356 | ||
4357 | sense_buf[16] = | |
4358 | ((IPR_FIELD_POINTER_MASK & | |
4359 | be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff; | |
4360 | sense_buf[17] = | |
4361 | (IPR_FIELD_POINTER_MASK & | |
4362 | be32_to_cpu(ioasa->ioasc_specific)) & 0xff; | |
4363 | } else { | |
4364 | if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { | |
4365 | if (ipr_is_vset_device(res)) | |
4366 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); | |
4367 | else | |
4368 | failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); | |
4369 | ||
4370 | sense_buf[0] |= 0x80; /* Or in the Valid bit */ | |
4371 | sense_buf[3] = (failing_lba & 0xff000000) >> 24; | |
4372 | sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; | |
4373 | sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; | |
4374 | sense_buf[6] = failing_lba & 0x000000ff; | |
4375 | } | |
4376 | ||
4377 | sense_buf[7] = 6; /* additional length */ | |
4378 | } | |
4379 | } | |
4380 | } | |
4381 | ||
ee0a90fa | 4382 | /** |
4383 | * ipr_get_autosense - Copy autosense data to sense buffer | |
4384 | * @ipr_cmd: ipr command struct | |
4385 | * | |
4386 | * This function copies the autosense buffer to the buffer | |
4387 | * in the scsi_cmd, if there is autosense available. | |
4388 | * | |
4389 | * Return value: | |
4390 | * 1 if autosense was available / 0 if not | |
4391 | **/ | |
4392 | static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd) | |
4393 | { | |
4394 | struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; | |
4395 | ||
117d2ce1 | 4396 | if ((be32_to_cpu(ioasa->ioasc_specific) & IPR_AUTOSENSE_VALID) == 0) |
ee0a90fa | 4397 | return 0; |
4398 | ||
4399 | memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data, | |
4400 | min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len), | |
4401 | SCSI_SENSE_BUFFERSIZE)); | |
4402 | return 1; | |
4403 | } | |
4404 | ||
1da177e4 LT |
4405 | /** |
4406 | * ipr_erp_start - Process an error response for a SCSI op | |
4407 | * @ioa_cfg: ioa config struct | |
4408 | * @ipr_cmd: ipr command struct | |
4409 | * | |
4410 | * This function determines whether or not to initiate ERP | |
4411 | * on the affected device. | |
4412 | * | |
4413 | * Return value: | |
4414 | * nothing | |
4415 | **/ | |
4416 | static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, | |
4417 | struct ipr_cmnd *ipr_cmd) | |
4418 | { | |
4419 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
4420 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; | |
4421 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
4422 | ||
4423 | if (!res) { | |
4424 | ipr_scsi_eh_done(ipr_cmd); | |
4425 | return; | |
4426 | } | |
4427 | ||
4428 | if (ipr_is_gscsi(res)) | |
fe964d0a | 4429 | ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); |
1da177e4 LT |
4430 | else |
4431 | ipr_gen_sense(ipr_cmd); | |
4432 | ||
4433 | switch (ioasc & IPR_IOASC_IOASC_MASK) { | |
4434 | case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: | |
ee0a90fa | 4435 | if (ipr_is_naca_model(res)) |
4436 | scsi_cmd->result |= (DID_ABORT << 16); | |
4437 | else | |
4438 | scsi_cmd->result |= (DID_IMM_RETRY << 16); | |
1da177e4 LT |
4439 | break; |
4440 | case IPR_IOASC_IR_RESOURCE_HANDLE: | |
b0df54bb | 4441 | case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: |
1da177e4 LT |
4442 | scsi_cmd->result |= (DID_NO_CONNECT << 16); |
4443 | break; | |
4444 | case IPR_IOASC_HW_SEL_TIMEOUT: | |
4445 | scsi_cmd->result |= (DID_NO_CONNECT << 16); | |
ee0a90fa | 4446 | if (!ipr_is_naca_model(res)) |
4447 | res->needs_sync_complete = 1; | |
1da177e4 LT |
4448 | break; |
4449 | case IPR_IOASC_SYNC_REQUIRED: | |
4450 | if (!res->in_erp) | |
4451 | res->needs_sync_complete = 1; | |
4452 | scsi_cmd->result |= (DID_IMM_RETRY << 16); | |
4453 | break; | |
4454 | case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ | |
b0df54bb | 4455 | case IPR_IOASA_IR_DUAL_IOA_DISABLED: |
1da177e4 LT |
4456 | scsi_cmd->result |= (DID_PASSTHROUGH << 16); |
4457 | break; | |
4458 | case IPR_IOASC_BUS_WAS_RESET: | |
4459 | case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: | |
4460 | /* | |
4461 | * Report the bus reset and ask for a retry. The device | |
4462 | * will give CC/UA the next command. | |
4463 | */ | |
4464 | if (!res->resetting_device) | |
4465 | scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); | |
4466 | scsi_cmd->result |= (DID_ERROR << 16); | |
ee0a90fa | 4467 | if (!ipr_is_naca_model(res)) |
4468 | res->needs_sync_complete = 1; | |
1da177e4 LT |
4469 | break; |
4470 | case IPR_IOASC_HW_DEV_BUS_STATUS: | |
4471 | scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); | |
4472 | if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { | |
ee0a90fa | 4473 | if (!ipr_get_autosense(ipr_cmd)) { |
4474 | if (!ipr_is_naca_model(res)) { | |
4475 | ipr_erp_cancel_all(ipr_cmd); | |
4476 | return; | |
4477 | } | |
4478 | } | |
1da177e4 | 4479 | } |
ee0a90fa | 4480 | if (!ipr_is_naca_model(res)) |
4481 | res->needs_sync_complete = 1; | |
1da177e4 LT |
4482 | break; |
4483 | case IPR_IOASC_NR_INIT_CMD_REQUIRED: | |
4484 | break; | |
4485 | default: | |
5b7304fb BK |
4486 | if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) |
4487 | scsi_cmd->result |= (DID_ERROR << 16); | |
ee0a90fa | 4488 | if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res)) |
1da177e4 LT |
4489 | res->needs_sync_complete = 1; |
4490 | break; | |
4491 | } | |
4492 | ||
4493 | ipr_unmap_sglist(ioa_cfg, ipr_cmd); | |
4494 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4495 | scsi_cmd->scsi_done(scsi_cmd); | |
4496 | } | |
4497 | ||
4498 | /** | |
4499 | * ipr_scsi_done - mid-layer done function | |
4500 | * @ipr_cmd: ipr command struct | |
4501 | * | |
4502 | * This function is invoked by the interrupt handler for | |
4503 | * ops generated by the SCSI mid-layer | |
4504 | * | |
4505 | * Return value: | |
4506 | * none | |
4507 | **/ | |
4508 | static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) | |
4509 | { | |
4510 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4511 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
4512 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
4513 | ||
4514 | scsi_cmd->resid = be32_to_cpu(ipr_cmd->ioasa.residual_data_len); | |
4515 | ||
4516 | if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { | |
4517 | ipr_unmap_sglist(ioa_cfg, ipr_cmd); | |
4518 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4519 | scsi_cmd->scsi_done(scsi_cmd); | |
4520 | } else | |
4521 | ipr_erp_start(ioa_cfg, ipr_cmd); | |
4522 | } | |
4523 | ||
1da177e4 LT |
4524 | /** |
4525 | * ipr_queuecommand - Queue a mid-layer request | |
4526 | * @scsi_cmd: scsi command struct | |
4527 | * @done: done function | |
4528 | * | |
4529 | * This function queues a request generated by the mid-layer. | |
4530 | * | |
4531 | * Return value: | |
4532 | * 0 on success | |
4533 | * SCSI_MLQUEUE_DEVICE_BUSY if device is busy | |
4534 | * SCSI_MLQUEUE_HOST_BUSY if host is busy | |
4535 | **/ | |
4536 | static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd, | |
4537 | void (*done) (struct scsi_cmnd *)) | |
4538 | { | |
4539 | struct ipr_ioa_cfg *ioa_cfg; | |
4540 | struct ipr_resource_entry *res; | |
4541 | struct ipr_ioarcb *ioarcb; | |
4542 | struct ipr_cmnd *ipr_cmd; | |
4543 | int rc = 0; | |
4544 | ||
4545 | scsi_cmd->scsi_done = done; | |
4546 | ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; | |
4547 | res = scsi_cmd->device->hostdata; | |
4548 | scsi_cmd->result = (DID_OK << 16); | |
4549 | ||
4550 | /* | |
4551 | * We are currently blocking all devices due to a host reset | |
4552 | * We have told the host to stop giving us new requests, but | |
4553 | * ERP ops don't count. FIXME | |
4554 | */ | |
4555 | if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead)) | |
4556 | return SCSI_MLQUEUE_HOST_BUSY; | |
4557 | ||
4558 | /* | |
4559 | * FIXME - Create scsi_set_host_offline interface | |
4560 | * and the ioa_is_dead check can be removed | |
4561 | */ | |
4562 | if (unlikely(ioa_cfg->ioa_is_dead || !res)) { | |
4563 | memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); | |
4564 | scsi_cmd->result = (DID_NO_CONNECT << 16); | |
4565 | scsi_cmd->scsi_done(scsi_cmd); | |
4566 | return 0; | |
4567 | } | |
4568 | ||
35a39691 BK |
4569 | if (ipr_is_gata(res) && res->sata_port) |
4570 | return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap); | |
4571 | ||
1da177e4 LT |
4572 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
4573 | ioarcb = &ipr_cmd->ioarcb; | |
4574 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
4575 | ||
4576 | memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); | |
4577 | ipr_cmd->scsi_cmd = scsi_cmd; | |
4578 | ioarcb->res_handle = res->cfgte.res_handle; | |
4579 | ipr_cmd->done = ipr_scsi_done; | |
4580 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr)); | |
4581 | ||
4582 | if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { | |
4583 | if (scsi_cmd->underflow == 0) | |
4584 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; | |
4585 | ||
4586 | if (res->needs_sync_complete) { | |
4587 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; | |
4588 | res->needs_sync_complete = 0; | |
4589 | } | |
4590 | ||
4591 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; | |
4592 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; | |
4593 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; | |
4594 | ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd); | |
4595 | } | |
4596 | ||
4597 | if (scsi_cmd->cmnd[0] >= 0xC0 && | |
4598 | (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) | |
4599 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
4600 | ||
1da177e4 LT |
4601 | if (likely(rc == 0)) |
4602 | rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); | |
4603 | ||
4604 | if (likely(rc == 0)) { | |
4605 | mb(); | |
4606 | writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), | |
4607 | ioa_cfg->regs.ioarrin_reg); | |
4608 | } else { | |
4609 | list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4610 | return SCSI_MLQUEUE_HOST_BUSY; | |
4611 | } | |
4612 | ||
4613 | return 0; | |
4614 | } | |
4615 | ||
35a39691 BK |
4616 | /** |
4617 | * ipr_ioctl - IOCTL handler | |
4618 | * @sdev: scsi device struct | |
4619 | * @cmd: IOCTL cmd | |
4620 | * @arg: IOCTL arg | |
4621 | * | |
4622 | * Return value: | |
4623 | * 0 on success / other on failure | |
4624 | **/ | |
4625 | int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) | |
4626 | { | |
4627 | struct ipr_resource_entry *res; | |
4628 | ||
4629 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
4630 | if (res && ipr_is_gata(res)) | |
4631 | return ata_scsi_ioctl(sdev, cmd, arg); | |
4632 | ||
4633 | return -EINVAL; | |
4634 | } | |
4635 | ||
1da177e4 LT |
4636 | /** |
4637 | * ipr_info - Get information about the card/driver | |
4638 | * @scsi_host: scsi host struct | |
4639 | * | |
4640 | * Return value: | |
4641 | * pointer to buffer with description string | |
4642 | **/ | |
4643 | static const char * ipr_ioa_info(struct Scsi_Host *host) | |
4644 | { | |
4645 | static char buffer[512]; | |
4646 | struct ipr_ioa_cfg *ioa_cfg; | |
4647 | unsigned long lock_flags = 0; | |
4648 | ||
4649 | ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; | |
4650 | ||
4651 | spin_lock_irqsave(host->host_lock, lock_flags); | |
4652 | sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type); | |
4653 | spin_unlock_irqrestore(host->host_lock, lock_flags); | |
4654 | ||
4655 | return buffer; | |
4656 | } | |
4657 | ||
35a39691 BK |
4658 | /** |
4659 | * ipr_scsi_timed_out - Handle scsi command timeout | |
4660 | * @scsi_cmd: scsi command struct | |
4661 | * | |
4662 | * Return value: | |
4663 | * EH_NOT_HANDLED | |
4664 | **/ | |
4665 | enum scsi_eh_timer_return ipr_scsi_timed_out(struct scsi_cmnd *scsi_cmd) | |
4666 | { | |
4667 | struct ipr_ioa_cfg *ioa_cfg; | |
4668 | struct ipr_cmnd *ipr_cmd; | |
4669 | unsigned long flags; | |
4670 | ||
4671 | ENTER; | |
4672 | spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); | |
4673 | ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; | |
4674 | ||
4675 | list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { | |
4676 | if (ipr_cmd->qc && ipr_cmd->qc->scsicmd == scsi_cmd) { | |
4677 | ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT; | |
4678 | ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED; | |
4679 | break; | |
4680 | } | |
4681 | } | |
4682 | ||
4683 | spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags); | |
4684 | LEAVE; | |
4685 | return EH_NOT_HANDLED; | |
4686 | } | |
4687 | ||
4688 | static struct scsi_transport_template ipr_transport_template = { | |
4689 | .eh_timed_out = ipr_scsi_timed_out | |
4690 | }; | |
4691 | ||
1da177e4 LT |
4692 | static struct scsi_host_template driver_template = { |
4693 | .module = THIS_MODULE, | |
4694 | .name = "IPR", | |
4695 | .info = ipr_ioa_info, | |
35a39691 | 4696 | .ioctl = ipr_ioctl, |
1da177e4 LT |
4697 | .queuecommand = ipr_queuecommand, |
4698 | .eh_abort_handler = ipr_eh_abort, | |
4699 | .eh_device_reset_handler = ipr_eh_dev_reset, | |
4700 | .eh_host_reset_handler = ipr_eh_host_reset, | |
4701 | .slave_alloc = ipr_slave_alloc, | |
4702 | .slave_configure = ipr_slave_configure, | |
4703 | .slave_destroy = ipr_slave_destroy, | |
35a39691 BK |
4704 | .target_alloc = ipr_target_alloc, |
4705 | .target_destroy = ipr_target_destroy, | |
1da177e4 LT |
4706 | .change_queue_depth = ipr_change_queue_depth, |
4707 | .change_queue_type = ipr_change_queue_type, | |
4708 | .bios_param = ipr_biosparam, | |
4709 | .can_queue = IPR_MAX_COMMANDS, | |
4710 | .this_id = -1, | |
4711 | .sg_tablesize = IPR_MAX_SGLIST, | |
4712 | .max_sectors = IPR_IOA_MAX_SECTORS, | |
4713 | .cmd_per_lun = IPR_MAX_CMD_PER_LUN, | |
4714 | .use_clustering = ENABLE_CLUSTERING, | |
4715 | .shost_attrs = ipr_ioa_attrs, | |
4716 | .sdev_attrs = ipr_dev_attrs, | |
4717 | .proc_name = IPR_NAME | |
4718 | }; | |
4719 | ||
35a39691 BK |
4720 | /** |
4721 | * ipr_ata_phy_reset - libata phy_reset handler | |
4722 | * @ap: ata port to reset | |
4723 | * | |
4724 | **/ | |
4725 | static void ipr_ata_phy_reset(struct ata_port *ap) | |
4726 | { | |
4727 | unsigned long flags; | |
4728 | struct ipr_sata_port *sata_port = ap->private_data; | |
4729 | struct ipr_resource_entry *res = sata_port->res; | |
4730 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; | |
4731 | int rc; | |
4732 | ||
4733 | ENTER; | |
4734 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
4735 | while(ioa_cfg->in_reset_reload) { | |
4736 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
4737 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
4738 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
4739 | } | |
4740 | ||
4741 | if (!ioa_cfg->allow_cmds) | |
4742 | goto out_unlock; | |
4743 | ||
4744 | rc = ipr_device_reset(ioa_cfg, res); | |
4745 | ||
4746 | if (rc) { | |
4747 | ap->ops->port_disable(ap); | |
4748 | goto out_unlock; | |
4749 | } | |
4750 | ||
4751 | switch(res->cfgte.proto) { | |
4752 | case IPR_PROTO_SATA: | |
4753 | case IPR_PROTO_SAS_STP: | |
4754 | ap->device[0].class = ATA_DEV_ATA; | |
4755 | break; | |
4756 | case IPR_PROTO_SATA_ATAPI: | |
4757 | case IPR_PROTO_SAS_STP_ATAPI: | |
4758 | ap->device[0].class = ATA_DEV_ATAPI; | |
4759 | break; | |
4760 | default: | |
4761 | ap->device[0].class = ATA_DEV_UNKNOWN; | |
4762 | ap->ops->port_disable(ap); | |
4763 | break; | |
4764 | }; | |
4765 | ||
4766 | out_unlock: | |
4767 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
4768 | LEAVE; | |
4769 | } | |
4770 | ||
4771 | /** | |
4772 | * ipr_ata_post_internal - Cleanup after an internal command | |
4773 | * @qc: ATA queued command | |
4774 | * | |
4775 | * Return value: | |
4776 | * none | |
4777 | **/ | |
4778 | static void ipr_ata_post_internal(struct ata_queued_cmd *qc) | |
4779 | { | |
4780 | struct ipr_sata_port *sata_port = qc->ap->private_data; | |
4781 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; | |
4782 | struct ipr_cmnd *ipr_cmd; | |
4783 | unsigned long flags; | |
4784 | ||
4785 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
73d98ff0 BK |
4786 | while(ioa_cfg->in_reset_reload) { |
4787 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
4788 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
4789 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
4790 | } | |
4791 | ||
35a39691 BK |
4792 | list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { |
4793 | if (ipr_cmd->qc == qc) { | |
4794 | ipr_device_reset(ioa_cfg, sata_port->res); | |
4795 | break; | |
4796 | } | |
4797 | } | |
4798 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
4799 | } | |
4800 | ||
4801 | /** | |
4802 | * ipr_tf_read - Read the current ATA taskfile for the ATA port | |
4803 | * @ap: ATA port | |
4804 | * @tf: destination ATA taskfile | |
4805 | * | |
4806 | * Return value: | |
4807 | * none | |
4808 | **/ | |
4809 | static void ipr_tf_read(struct ata_port *ap, struct ata_taskfile *tf) | |
4810 | { | |
4811 | struct ipr_sata_port *sata_port = ap->private_data; | |
4812 | struct ipr_ioasa_gata *g = &sata_port->ioasa; | |
4813 | ||
4814 | tf->feature = g->error; | |
4815 | tf->nsect = g->nsect; | |
4816 | tf->lbal = g->lbal; | |
4817 | tf->lbam = g->lbam; | |
4818 | tf->lbah = g->lbah; | |
4819 | tf->device = g->device; | |
4820 | tf->command = g->status; | |
4821 | tf->hob_nsect = g->hob_nsect; | |
4822 | tf->hob_lbal = g->hob_lbal; | |
4823 | tf->hob_lbam = g->hob_lbam; | |
4824 | tf->hob_lbah = g->hob_lbah; | |
4825 | tf->ctl = g->alt_status; | |
4826 | } | |
4827 | ||
4828 | /** | |
4829 | * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure | |
4830 | * @regs: destination | |
4831 | * @tf: source ATA taskfile | |
4832 | * | |
4833 | * Return value: | |
4834 | * none | |
4835 | **/ | |
4836 | static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs, | |
4837 | struct ata_taskfile *tf) | |
4838 | { | |
4839 | regs->feature = tf->feature; | |
4840 | regs->nsect = tf->nsect; | |
4841 | regs->lbal = tf->lbal; | |
4842 | regs->lbam = tf->lbam; | |
4843 | regs->lbah = tf->lbah; | |
4844 | regs->device = tf->device; | |
4845 | regs->command = tf->command; | |
4846 | regs->hob_feature = tf->hob_feature; | |
4847 | regs->hob_nsect = tf->hob_nsect; | |
4848 | regs->hob_lbal = tf->hob_lbal; | |
4849 | regs->hob_lbam = tf->hob_lbam; | |
4850 | regs->hob_lbah = tf->hob_lbah; | |
4851 | regs->ctl = tf->ctl; | |
4852 | } | |
4853 | ||
4854 | /** | |
4855 | * ipr_sata_done - done function for SATA commands | |
4856 | * @ipr_cmd: ipr command struct | |
4857 | * | |
4858 | * This function is invoked by the interrupt handler for | |
4859 | * ops generated by the SCSI mid-layer to SATA devices | |
4860 | * | |
4861 | * Return value: | |
4862 | * none | |
4863 | **/ | |
4864 | static void ipr_sata_done(struct ipr_cmnd *ipr_cmd) | |
4865 | { | |
4866 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4867 | struct ata_queued_cmd *qc = ipr_cmd->qc; | |
4868 | struct ipr_sata_port *sata_port = qc->ap->private_data; | |
4869 | struct ipr_resource_entry *res = sata_port->res; | |
4870 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
4871 | ||
4872 | memcpy(&sata_port->ioasa, &ipr_cmd->ioasa.u.gata, | |
4873 | sizeof(struct ipr_ioasa_gata)); | |
4874 | ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); | |
4875 | ||
4876 | if (be32_to_cpu(ipr_cmd->ioasa.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET) | |
4877 | scsi_report_device_reset(ioa_cfg->host, res->cfgte.res_addr.bus, | |
4878 | res->cfgte.res_addr.target); | |
4879 | ||
4880 | if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) | |
4881 | qc->err_mask |= __ac_err_mask(ipr_cmd->ioasa.u.gata.status); | |
4882 | else | |
4883 | qc->err_mask |= ac_err_mask(ipr_cmd->ioasa.u.gata.status); | |
4884 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4885 | ata_qc_complete(qc); | |
4886 | } | |
4887 | ||
4888 | /** | |
4889 | * ipr_build_ata_ioadl - Build an ATA scatter/gather list | |
4890 | * @ipr_cmd: ipr command struct | |
4891 | * @qc: ATA queued command | |
4892 | * | |
4893 | **/ | |
4894 | static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd, | |
4895 | struct ata_queued_cmd *qc) | |
4896 | { | |
4897 | u32 ioadl_flags = 0; | |
4898 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
4899 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
4900 | int len = qc->nbytes + qc->pad_len; | |
4901 | struct scatterlist *sg; | |
4902 | ||
4903 | if (len == 0) | |
4904 | return; | |
4905 | ||
4906 | if (qc->dma_dir == DMA_TO_DEVICE) { | |
4907 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; | |
4908 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
4909 | ioarcb->write_data_transfer_length = cpu_to_be32(len); | |
4910 | ioarcb->write_ioadl_len = | |
4911 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
4912 | } else if (qc->dma_dir == DMA_FROM_DEVICE) { | |
4913 | ioadl_flags = IPR_IOADL_FLAGS_READ; | |
4914 | ioarcb->read_data_transfer_length = cpu_to_be32(len); | |
4915 | ioarcb->read_ioadl_len = | |
4916 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
4917 | } | |
4918 | ||
4919 | ata_for_each_sg(sg, qc) { | |
4920 | ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg)); | |
4921 | ioadl->address = cpu_to_be32(sg_dma_address(sg)); | |
4922 | if (ata_sg_is_last(sg, qc)) | |
4923 | ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); | |
4924 | else | |
4925 | ioadl++; | |
4926 | } | |
4927 | } | |
4928 | ||
4929 | /** | |
4930 | * ipr_qc_issue - Issue a SATA qc to a device | |
4931 | * @qc: queued command | |
4932 | * | |
4933 | * Return value: | |
4934 | * 0 if success | |
4935 | **/ | |
4936 | static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc) | |
4937 | { | |
4938 | struct ata_port *ap = qc->ap; | |
4939 | struct ipr_sata_port *sata_port = ap->private_data; | |
4940 | struct ipr_resource_entry *res = sata_port->res; | |
4941 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; | |
4942 | struct ipr_cmnd *ipr_cmd; | |
4943 | struct ipr_ioarcb *ioarcb; | |
4944 | struct ipr_ioarcb_ata_regs *regs; | |
4945 | ||
4946 | if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead)) | |
4947 | return -EIO; | |
4948 | ||
4949 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
4950 | ioarcb = &ipr_cmd->ioarcb; | |
4951 | regs = &ioarcb->add_data.u.regs; | |
4952 | ||
4953 | memset(&ioarcb->add_data, 0, sizeof(ioarcb->add_data)); | |
4954 | ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(ioarcb->add_data.u.regs)); | |
4955 | ||
4956 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
4957 | ipr_cmd->qc = qc; | |
4958 | ipr_cmd->done = ipr_sata_done; | |
4959 | ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle; | |
4960 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU; | |
4961 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; | |
4962 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; | |
4963 | ipr_cmd->dma_use_sg = qc->pad_len ? qc->n_elem + 1 : qc->n_elem; | |
4964 | ||
4965 | ipr_build_ata_ioadl(ipr_cmd, qc); | |
4966 | regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; | |
4967 | ipr_copy_sata_tf(regs, &qc->tf); | |
4968 | memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN); | |
4969 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr)); | |
4970 | ||
4971 | switch (qc->tf.protocol) { | |
4972 | case ATA_PROT_NODATA: | |
4973 | case ATA_PROT_PIO: | |
4974 | break; | |
4975 | ||
4976 | case ATA_PROT_DMA: | |
4977 | regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; | |
4978 | break; | |
4979 | ||
4980 | case ATA_PROT_ATAPI: | |
4981 | case ATA_PROT_ATAPI_NODATA: | |
4982 | regs->flags |= IPR_ATA_FLAG_PACKET_CMD; | |
4983 | break; | |
4984 | ||
4985 | case ATA_PROT_ATAPI_DMA: | |
4986 | regs->flags |= IPR_ATA_FLAG_PACKET_CMD; | |
4987 | regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; | |
4988 | break; | |
4989 | ||
4990 | default: | |
4991 | WARN_ON(1); | |
4992 | return -1; | |
4993 | } | |
4994 | ||
4995 | mb(); | |
4996 | writel(be32_to_cpu(ioarcb->ioarcb_host_pci_addr), | |
4997 | ioa_cfg->regs.ioarrin_reg); | |
4998 | return 0; | |
4999 | } | |
5000 | ||
5001 | /** | |
5002 | * ipr_ata_check_status - Return last ATA status | |
5003 | * @ap: ATA port | |
5004 | * | |
5005 | * Return value: | |
5006 | * ATA status | |
5007 | **/ | |
5008 | static u8 ipr_ata_check_status(struct ata_port *ap) | |
5009 | { | |
5010 | struct ipr_sata_port *sata_port = ap->private_data; | |
5011 | return sata_port->ioasa.status; | |
5012 | } | |
5013 | ||
5014 | /** | |
5015 | * ipr_ata_check_altstatus - Return last ATA altstatus | |
5016 | * @ap: ATA port | |
5017 | * | |
5018 | * Return value: | |
5019 | * Alt ATA status | |
5020 | **/ | |
5021 | static u8 ipr_ata_check_altstatus(struct ata_port *ap) | |
5022 | { | |
5023 | struct ipr_sata_port *sata_port = ap->private_data; | |
5024 | return sata_port->ioasa.alt_status; | |
5025 | } | |
5026 | ||
5027 | static struct ata_port_operations ipr_sata_ops = { | |
5028 | .port_disable = ata_port_disable, | |
5029 | .check_status = ipr_ata_check_status, | |
5030 | .check_altstatus = ipr_ata_check_altstatus, | |
5031 | .dev_select = ata_noop_dev_select, | |
5032 | .phy_reset = ipr_ata_phy_reset, | |
5033 | .post_internal_cmd = ipr_ata_post_internal, | |
5034 | .tf_read = ipr_tf_read, | |
5035 | .qc_prep = ata_noop_qc_prep, | |
5036 | .qc_issue = ipr_qc_issue, | |
5037 | .port_start = ata_sas_port_start, | |
5038 | .port_stop = ata_sas_port_stop | |
5039 | }; | |
5040 | ||
5041 | static struct ata_port_info sata_port_info = { | |
5042 | .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET | | |
5043 | ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA, | |
5044 | .pio_mask = 0x10, /* pio4 */ | |
5045 | .mwdma_mask = 0x07, | |
5046 | .udma_mask = 0x7f, /* udma0-6 */ | |
5047 | .port_ops = &ipr_sata_ops | |
5048 | }; | |
5049 | ||
1da177e4 LT |
5050 | #ifdef CONFIG_PPC_PSERIES |
5051 | static const u16 ipr_blocked_processors[] = { | |
5052 | PV_NORTHSTAR, | |
5053 | PV_PULSAR, | |
5054 | PV_POWER4, | |
5055 | PV_ICESTAR, | |
5056 | PV_SSTAR, | |
5057 | PV_POWER4p, | |
5058 | PV_630, | |
5059 | PV_630p | |
5060 | }; | |
5061 | ||
5062 | /** | |
5063 | * ipr_invalid_adapter - Determine if this adapter is supported on this hardware | |
5064 | * @ioa_cfg: ioa cfg struct | |
5065 | * | |
5066 | * Adapters that use Gemstone revision < 3.1 do not work reliably on | |
5067 | * certain pSeries hardware. This function determines if the given | |
5068 | * adapter is in one of these confgurations or not. | |
5069 | * | |
5070 | * Return value: | |
5071 | * 1 if adapter is not supported / 0 if adapter is supported | |
5072 | **/ | |
5073 | static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) | |
5074 | { | |
5075 | u8 rev_id; | |
5076 | int i; | |
5077 | ||
5078 | if (ioa_cfg->type == 0x5702) { | |
5079 | if (pci_read_config_byte(ioa_cfg->pdev, PCI_REVISION_ID, | |
5080 | &rev_id) == PCIBIOS_SUCCESSFUL) { | |
5081 | if (rev_id < 4) { | |
5082 | for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){ | |
5083 | if (__is_processor(ipr_blocked_processors[i])) | |
5084 | return 1; | |
5085 | } | |
5086 | } | |
5087 | } | |
5088 | } | |
5089 | return 0; | |
5090 | } | |
5091 | #else | |
5092 | #define ipr_invalid_adapter(ioa_cfg) 0 | |
5093 | #endif | |
5094 | ||
5095 | /** | |
5096 | * ipr_ioa_bringdown_done - IOA bring down completion. | |
5097 | * @ipr_cmd: ipr command struct | |
5098 | * | |
5099 | * This function processes the completion of an adapter bring down. | |
5100 | * It wakes any reset sleepers. | |
5101 | * | |
5102 | * Return value: | |
5103 | * IPR_RC_JOB_RETURN | |
5104 | **/ | |
5105 | static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) | |
5106 | { | |
5107 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5108 | ||
5109 | ENTER; | |
5110 | ioa_cfg->in_reset_reload = 0; | |
5111 | ioa_cfg->reset_retries = 0; | |
5112 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
5113 | wake_up_all(&ioa_cfg->reset_wait_q); | |
5114 | ||
5115 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
5116 | scsi_unblock_requests(ioa_cfg->host); | |
5117 | spin_lock_irq(ioa_cfg->host->host_lock); | |
5118 | LEAVE; | |
5119 | ||
5120 | return IPR_RC_JOB_RETURN; | |
5121 | } | |
5122 | ||
5123 | /** | |
5124 | * ipr_ioa_reset_done - IOA reset completion. | |
5125 | * @ipr_cmd: ipr command struct | |
5126 | * | |
5127 | * This function processes the completion of an adapter reset. | |
5128 | * It schedules any necessary mid-layer add/removes and | |
5129 | * wakes any reset sleepers. | |
5130 | * | |
5131 | * Return value: | |
5132 | * IPR_RC_JOB_RETURN | |
5133 | **/ | |
5134 | static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) | |
5135 | { | |
5136 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5137 | struct ipr_resource_entry *res; | |
5138 | struct ipr_hostrcb *hostrcb, *temp; | |
5139 | int i = 0; | |
5140 | ||
5141 | ENTER; | |
5142 | ioa_cfg->in_reset_reload = 0; | |
5143 | ioa_cfg->allow_cmds = 1; | |
5144 | ioa_cfg->reset_cmd = NULL; | |
3d1d0da6 | 5145 | ioa_cfg->doorbell |= IPR_RUNTIME_RESET; |
1da177e4 LT |
5146 | |
5147 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
5148 | if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) { | |
5149 | ipr_trace; | |
5150 | break; | |
5151 | } | |
5152 | } | |
5153 | schedule_work(&ioa_cfg->work_q); | |
5154 | ||
5155 | list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) { | |
5156 | list_del(&hostrcb->queue); | |
5157 | if (i++ < IPR_NUM_LOG_HCAMS) | |
5158 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); | |
5159 | else | |
5160 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); | |
5161 | } | |
5162 | ||
5163 | dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n"); | |
5164 | ||
5165 | ioa_cfg->reset_retries = 0; | |
5166 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
5167 | wake_up_all(&ioa_cfg->reset_wait_q); | |
5168 | ||
5169 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
5170 | scsi_unblock_requests(ioa_cfg->host); | |
5171 | spin_lock_irq(ioa_cfg->host->host_lock); | |
5172 | ||
5173 | if (!ioa_cfg->allow_cmds) | |
5174 | scsi_block_requests(ioa_cfg->host); | |
5175 | ||
5176 | LEAVE; | |
5177 | return IPR_RC_JOB_RETURN; | |
5178 | } | |
5179 | ||
5180 | /** | |
5181 | * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer | |
5182 | * @supported_dev: supported device struct | |
5183 | * @vpids: vendor product id struct | |
5184 | * | |
5185 | * Return value: | |
5186 | * none | |
5187 | **/ | |
5188 | static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, | |
5189 | struct ipr_std_inq_vpids *vpids) | |
5190 | { | |
5191 | memset(supported_dev, 0, sizeof(struct ipr_supported_device)); | |
5192 | memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); | |
5193 | supported_dev->num_records = 1; | |
5194 | supported_dev->data_length = | |
5195 | cpu_to_be16(sizeof(struct ipr_supported_device)); | |
5196 | supported_dev->reserved = 0; | |
5197 | } | |
5198 | ||
5199 | /** | |
5200 | * ipr_set_supported_devs - Send Set Supported Devices for a device | |
5201 | * @ipr_cmd: ipr command struct | |
5202 | * | |
5203 | * This function send a Set Supported Devices to the adapter | |
5204 | * | |
5205 | * Return value: | |
5206 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5207 | **/ | |
5208 | static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) | |
5209 | { | |
5210 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5211 | struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; | |
5212 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
5213 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
5214 | struct ipr_resource_entry *res = ipr_cmd->u.res; | |
5215 | ||
5216 | ipr_cmd->job_step = ipr_ioa_reset_done; | |
5217 | ||
5218 | list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { | |
e4fbf44e | 5219 | if (!ipr_is_scsi_disk(res)) |
1da177e4 LT |
5220 | continue; |
5221 | ||
5222 | ipr_cmd->u.res = res; | |
5223 | ipr_set_sup_dev_dflt(supp_dev, &res->cfgte.std_inq_data.vpids); | |
5224 | ||
5225 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
5226 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
5227 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
5228 | ||
5229 | ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; | |
5230 | ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; | |
5231 | ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; | |
5232 | ||
5233 | ioadl->flags_and_data_len = cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | | |
5234 | sizeof(struct ipr_supported_device)); | |
5235 | ioadl->address = cpu_to_be32(ioa_cfg->vpd_cbs_dma + | |
5236 | offsetof(struct ipr_misc_cbs, supp_dev)); | |
5237 | ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
5238 | ioarcb->write_data_transfer_length = | |
5239 | cpu_to_be32(sizeof(struct ipr_supported_device)); | |
5240 | ||
5241 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, | |
5242 | IPR_SET_SUP_DEVICE_TIMEOUT); | |
5243 | ||
5244 | ipr_cmd->job_step = ipr_set_supported_devs; | |
5245 | return IPR_RC_JOB_RETURN; | |
5246 | } | |
5247 | ||
5248 | return IPR_RC_JOB_CONTINUE; | |
5249 | } | |
5250 | ||
62275040 | 5251 | /** |
5252 | * ipr_setup_write_cache - Disable write cache if needed | |
5253 | * @ipr_cmd: ipr command struct | |
5254 | * | |
5255 | * This function sets up adapters write cache to desired setting | |
5256 | * | |
5257 | * Return value: | |
5258 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5259 | **/ | |
5260 | static int ipr_setup_write_cache(struct ipr_cmnd *ipr_cmd) | |
5261 | { | |
5262 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5263 | ||
5264 | ipr_cmd->job_step = ipr_set_supported_devs; | |
5265 | ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, | |
5266 | struct ipr_resource_entry, queue); | |
5267 | ||
5268 | if (ioa_cfg->cache_state != CACHE_DISABLED) | |
5269 | return IPR_RC_JOB_CONTINUE; | |
5270 | ||
5271 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
5272 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
5273 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; | |
5274 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; | |
5275 | ||
5276 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
5277 | ||
5278 | return IPR_RC_JOB_RETURN; | |
5279 | } | |
5280 | ||
1da177e4 LT |
5281 | /** |
5282 | * ipr_get_mode_page - Locate specified mode page | |
5283 | * @mode_pages: mode page buffer | |
5284 | * @page_code: page code to find | |
5285 | * @len: minimum required length for mode page | |
5286 | * | |
5287 | * Return value: | |
5288 | * pointer to mode page / NULL on failure | |
5289 | **/ | |
5290 | static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, | |
5291 | u32 page_code, u32 len) | |
5292 | { | |
5293 | struct ipr_mode_page_hdr *mode_hdr; | |
5294 | u32 page_length; | |
5295 | u32 length; | |
5296 | ||
5297 | if (!mode_pages || (mode_pages->hdr.length == 0)) | |
5298 | return NULL; | |
5299 | ||
5300 | length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; | |
5301 | mode_hdr = (struct ipr_mode_page_hdr *) | |
5302 | (mode_pages->data + mode_pages->hdr.block_desc_len); | |
5303 | ||
5304 | while (length) { | |
5305 | if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { | |
5306 | if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) | |
5307 | return mode_hdr; | |
5308 | break; | |
5309 | } else { | |
5310 | page_length = (sizeof(struct ipr_mode_page_hdr) + | |
5311 | mode_hdr->page_length); | |
5312 | length -= page_length; | |
5313 | mode_hdr = (struct ipr_mode_page_hdr *) | |
5314 | ((unsigned long)mode_hdr + page_length); | |
5315 | } | |
5316 | } | |
5317 | return NULL; | |
5318 | } | |
5319 | ||
5320 | /** | |
5321 | * ipr_check_term_power - Check for term power errors | |
5322 | * @ioa_cfg: ioa config struct | |
5323 | * @mode_pages: IOAFP mode pages buffer | |
5324 | * | |
5325 | * Check the IOAFP's mode page 28 for term power errors | |
5326 | * | |
5327 | * Return value: | |
5328 | * nothing | |
5329 | **/ | |
5330 | static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, | |
5331 | struct ipr_mode_pages *mode_pages) | |
5332 | { | |
5333 | int i; | |
5334 | int entry_length; | |
5335 | struct ipr_dev_bus_entry *bus; | |
5336 | struct ipr_mode_page28 *mode_page; | |
5337 | ||
5338 | mode_page = ipr_get_mode_page(mode_pages, 0x28, | |
5339 | sizeof(struct ipr_mode_page28)); | |
5340 | ||
5341 | entry_length = mode_page->entry_length; | |
5342 | ||
5343 | bus = mode_page->bus; | |
5344 | ||
5345 | for (i = 0; i < mode_page->num_entries; i++) { | |
5346 | if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { | |
5347 | dev_err(&ioa_cfg->pdev->dev, | |
5348 | "Term power is absent on scsi bus %d\n", | |
5349 | bus->res_addr.bus); | |
5350 | } | |
5351 | ||
5352 | bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); | |
5353 | } | |
5354 | } | |
5355 | ||
5356 | /** | |
5357 | * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table | |
5358 | * @ioa_cfg: ioa config struct | |
5359 | * | |
5360 | * Looks through the config table checking for SES devices. If | |
5361 | * the SES device is in the SES table indicating a maximum SCSI | |
5362 | * bus speed, the speed is limited for the bus. | |
5363 | * | |
5364 | * Return value: | |
5365 | * none | |
5366 | **/ | |
5367 | static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) | |
5368 | { | |
5369 | u32 max_xfer_rate; | |
5370 | int i; | |
5371 | ||
5372 | for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { | |
5373 | max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i, | |
5374 | ioa_cfg->bus_attr[i].bus_width); | |
5375 | ||
5376 | if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) | |
5377 | ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; | |
5378 | } | |
5379 | } | |
5380 | ||
5381 | /** | |
5382 | * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 | |
5383 | * @ioa_cfg: ioa config struct | |
5384 | * @mode_pages: mode page 28 buffer | |
5385 | * | |
5386 | * Updates mode page 28 based on driver configuration | |
5387 | * | |
5388 | * Return value: | |
5389 | * none | |
5390 | **/ | |
5391 | static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, | |
5392 | struct ipr_mode_pages *mode_pages) | |
5393 | { | |
5394 | int i, entry_length; | |
5395 | struct ipr_dev_bus_entry *bus; | |
5396 | struct ipr_bus_attributes *bus_attr; | |
5397 | struct ipr_mode_page28 *mode_page; | |
5398 | ||
5399 | mode_page = ipr_get_mode_page(mode_pages, 0x28, | |
5400 | sizeof(struct ipr_mode_page28)); | |
5401 | ||
5402 | entry_length = mode_page->entry_length; | |
5403 | ||
5404 | /* Loop for each device bus entry */ | |
5405 | for (i = 0, bus = mode_page->bus; | |
5406 | i < mode_page->num_entries; | |
5407 | i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { | |
5408 | if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { | |
5409 | dev_err(&ioa_cfg->pdev->dev, | |
5410 | "Invalid resource address reported: 0x%08X\n", | |
5411 | IPR_GET_PHYS_LOC(bus->res_addr)); | |
5412 | continue; | |
5413 | } | |
5414 | ||
5415 | bus_attr = &ioa_cfg->bus_attr[i]; | |
5416 | bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; | |
5417 | bus->bus_width = bus_attr->bus_width; | |
5418 | bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); | |
5419 | bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; | |
5420 | if (bus_attr->qas_enabled) | |
5421 | bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; | |
5422 | else | |
5423 | bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; | |
5424 | } | |
5425 | } | |
5426 | ||
5427 | /** | |
5428 | * ipr_build_mode_select - Build a mode select command | |
5429 | * @ipr_cmd: ipr command struct | |
5430 | * @res_handle: resource handle to send command to | |
5431 | * @parm: Byte 2 of Mode Sense command | |
5432 | * @dma_addr: DMA buffer address | |
5433 | * @xfer_len: data transfer length | |
5434 | * | |
5435 | * Return value: | |
5436 | * none | |
5437 | **/ | |
5438 | static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, | |
5439 | __be32 res_handle, u8 parm, u32 dma_addr, | |
5440 | u8 xfer_len) | |
5441 | { | |
5442 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
5443 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
5444 | ||
5445 | ioarcb->res_handle = res_handle; | |
5446 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
5447 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
5448 | ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; | |
5449 | ioarcb->cmd_pkt.cdb[1] = parm; | |
5450 | ioarcb->cmd_pkt.cdb[4] = xfer_len; | |
5451 | ||
5452 | ioadl->flags_and_data_len = | |
5453 | cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | xfer_len); | |
5454 | ioadl->address = cpu_to_be32(dma_addr); | |
5455 | ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
5456 | ioarcb->write_data_transfer_length = cpu_to_be32(xfer_len); | |
5457 | } | |
5458 | ||
5459 | /** | |
5460 | * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA | |
5461 | * @ipr_cmd: ipr command struct | |
5462 | * | |
5463 | * This function sets up the SCSI bus attributes and sends | |
5464 | * a Mode Select for Page 28 to activate them. | |
5465 | * | |
5466 | * Return value: | |
5467 | * IPR_RC_JOB_RETURN | |
5468 | **/ | |
5469 | static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) | |
5470 | { | |
5471 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5472 | struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; | |
5473 | int length; | |
5474 | ||
5475 | ENTER; | |
4733804c BK |
5476 | ipr_scsi_bus_speed_limit(ioa_cfg); |
5477 | ipr_check_term_power(ioa_cfg, mode_pages); | |
5478 | ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); | |
5479 | length = mode_pages->hdr.length + 1; | |
5480 | mode_pages->hdr.length = 0; | |
1da177e4 LT |
5481 | |
5482 | ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, | |
5483 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), | |
5484 | length); | |
5485 | ||
62275040 | 5486 | ipr_cmd->job_step = ipr_setup_write_cache; |
1da177e4 LT |
5487 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); |
5488 | ||
5489 | LEAVE; | |
5490 | return IPR_RC_JOB_RETURN; | |
5491 | } | |
5492 | ||
5493 | /** | |
5494 | * ipr_build_mode_sense - Builds a mode sense command | |
5495 | * @ipr_cmd: ipr command struct | |
5496 | * @res: resource entry struct | |
5497 | * @parm: Byte 2 of mode sense command | |
5498 | * @dma_addr: DMA address of mode sense buffer | |
5499 | * @xfer_len: Size of DMA buffer | |
5500 | * | |
5501 | * Return value: | |
5502 | * none | |
5503 | **/ | |
5504 | static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, | |
5505 | __be32 res_handle, | |
5506 | u8 parm, u32 dma_addr, u8 xfer_len) | |
5507 | { | |
5508 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
5509 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
5510 | ||
5511 | ioarcb->res_handle = res_handle; | |
5512 | ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; | |
5513 | ioarcb->cmd_pkt.cdb[2] = parm; | |
5514 | ioarcb->cmd_pkt.cdb[4] = xfer_len; | |
5515 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
5516 | ||
5517 | ioadl->flags_and_data_len = | |
5518 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len); | |
5519 | ioadl->address = cpu_to_be32(dma_addr); | |
5520 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
5521 | ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len); | |
5522 | } | |
5523 | ||
dfed823e | 5524 | /** |
5525 | * ipr_reset_cmd_failed - Handle failure of IOA reset command | |
5526 | * @ipr_cmd: ipr command struct | |
5527 | * | |
5528 | * This function handles the failure of an IOA bringup command. | |
5529 | * | |
5530 | * Return value: | |
5531 | * IPR_RC_JOB_RETURN | |
5532 | **/ | |
5533 | static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) | |
5534 | { | |
5535 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5536 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
5537 | ||
5538 | dev_err(&ioa_cfg->pdev->dev, | |
5539 | "0x%02X failed with IOASC: 0x%08X\n", | |
5540 | ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); | |
5541 | ||
5542 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
5543 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
5544 | return IPR_RC_JOB_RETURN; | |
5545 | } | |
5546 | ||
5547 | /** | |
5548 | * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense | |
5549 | * @ipr_cmd: ipr command struct | |
5550 | * | |
5551 | * This function handles the failure of a Mode Sense to the IOAFP. | |
5552 | * Some adapters do not handle all mode pages. | |
5553 | * | |
5554 | * Return value: | |
5555 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5556 | **/ | |
5557 | static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) | |
5558 | { | |
5559 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
5560 | ||
5561 | if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { | |
5562 | ipr_cmd->job_step = ipr_setup_write_cache; | |
5563 | return IPR_RC_JOB_CONTINUE; | |
5564 | } | |
5565 | ||
5566 | return ipr_reset_cmd_failed(ipr_cmd); | |
5567 | } | |
5568 | ||
1da177e4 LT |
5569 | /** |
5570 | * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA | |
5571 | * @ipr_cmd: ipr command struct | |
5572 | * | |
5573 | * This function send a Page 28 mode sense to the IOA to | |
5574 | * retrieve SCSI bus attributes. | |
5575 | * | |
5576 | * Return value: | |
5577 | * IPR_RC_JOB_RETURN | |
5578 | **/ | |
5579 | static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) | |
5580 | { | |
5581 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5582 | ||
5583 | ENTER; | |
5584 | ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), | |
5585 | 0x28, ioa_cfg->vpd_cbs_dma + | |
5586 | offsetof(struct ipr_misc_cbs, mode_pages), | |
5587 | sizeof(struct ipr_mode_pages)); | |
5588 | ||
5589 | ipr_cmd->job_step = ipr_ioafp_mode_select_page28; | |
dfed823e | 5590 | ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; |
1da177e4 LT |
5591 | |
5592 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
5593 | ||
5594 | LEAVE; | |
5595 | return IPR_RC_JOB_RETURN; | |
5596 | } | |
5597 | ||
5598 | /** | |
5599 | * ipr_init_res_table - Initialize the resource table | |
5600 | * @ipr_cmd: ipr command struct | |
5601 | * | |
5602 | * This function looks through the existing resource table, comparing | |
5603 | * it with the config table. This function will take care of old/new | |
5604 | * devices and schedule adding/removing them from the mid-layer | |
5605 | * as appropriate. | |
5606 | * | |
5607 | * Return value: | |
5608 | * IPR_RC_JOB_CONTINUE | |
5609 | **/ | |
5610 | static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) | |
5611 | { | |
5612 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5613 | struct ipr_resource_entry *res, *temp; | |
5614 | struct ipr_config_table_entry *cfgte; | |
5615 | int found, i; | |
5616 | LIST_HEAD(old_res); | |
5617 | ||
5618 | ENTER; | |
5619 | if (ioa_cfg->cfg_table->hdr.flags & IPR_UCODE_DOWNLOAD_REQ) | |
5620 | dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n"); | |
5621 | ||
5622 | list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) | |
5623 | list_move_tail(&res->queue, &old_res); | |
5624 | ||
5625 | for (i = 0; i < ioa_cfg->cfg_table->hdr.num_entries; i++) { | |
5626 | cfgte = &ioa_cfg->cfg_table->dev[i]; | |
5627 | found = 0; | |
5628 | ||
5629 | list_for_each_entry_safe(res, temp, &old_res, queue) { | |
5630 | if (!memcmp(&res->cfgte.res_addr, | |
5631 | &cfgte->res_addr, sizeof(cfgte->res_addr))) { | |
5632 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); | |
5633 | found = 1; | |
5634 | break; | |
5635 | } | |
5636 | } | |
5637 | ||
5638 | if (!found) { | |
5639 | if (list_empty(&ioa_cfg->free_res_q)) { | |
5640 | dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n"); | |
5641 | break; | |
5642 | } | |
5643 | ||
5644 | found = 1; | |
5645 | res = list_entry(ioa_cfg->free_res_q.next, | |
5646 | struct ipr_resource_entry, queue); | |
5647 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); | |
5648 | ipr_init_res_entry(res); | |
5649 | res->add_to_ml = 1; | |
5650 | } | |
5651 | ||
5652 | if (found) | |
5653 | memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry)); | |
5654 | } | |
5655 | ||
5656 | list_for_each_entry_safe(res, temp, &old_res, queue) { | |
5657 | if (res->sdev) { | |
5658 | res->del_from_ml = 1; | |
1121b794 | 5659 | res->cfgte.res_handle = IPR_INVALID_RES_HANDLE; |
1da177e4 LT |
5660 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); |
5661 | } else { | |
5662 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); | |
5663 | } | |
5664 | } | |
5665 | ||
5666 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; | |
5667 | ||
5668 | LEAVE; | |
5669 | return IPR_RC_JOB_CONTINUE; | |
5670 | } | |
5671 | ||
5672 | /** | |
5673 | * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. | |
5674 | * @ipr_cmd: ipr command struct | |
5675 | * | |
5676 | * This function sends a Query IOA Configuration command | |
5677 | * to the adapter to retrieve the IOA configuration table. | |
5678 | * | |
5679 | * Return value: | |
5680 | * IPR_RC_JOB_RETURN | |
5681 | **/ | |
5682 | static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) | |
5683 | { | |
5684 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5685 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
5686 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
5687 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; | |
5688 | ||
5689 | ENTER; | |
5690 | dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", | |
5691 | ucode_vpd->major_release, ucode_vpd->card_type, | |
5692 | ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); | |
5693 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
5694 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
5695 | ||
5696 | ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; | |
5697 | ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_config_table) >> 8) & 0xff; | |
5698 | ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_config_table) & 0xff; | |
5699 | ||
5700 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
5701 | ioarcb->read_data_transfer_length = | |
5702 | cpu_to_be32(sizeof(struct ipr_config_table)); | |
5703 | ||
5704 | ioadl->address = cpu_to_be32(ioa_cfg->cfg_table_dma); | |
5705 | ioadl->flags_and_data_len = | |
5706 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(struct ipr_config_table)); | |
5707 | ||
5708 | ipr_cmd->job_step = ipr_init_res_table; | |
5709 | ||
5710 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
5711 | ||
5712 | LEAVE; | |
5713 | return IPR_RC_JOB_RETURN; | |
5714 | } | |
5715 | ||
5716 | /** | |
5717 | * ipr_ioafp_inquiry - Send an Inquiry to the adapter. | |
5718 | * @ipr_cmd: ipr command struct | |
5719 | * | |
5720 | * This utility function sends an inquiry to the adapter. | |
5721 | * | |
5722 | * Return value: | |
5723 | * none | |
5724 | **/ | |
5725 | static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, | |
5726 | u32 dma_addr, u8 xfer_len) | |
5727 | { | |
5728 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
5729 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
5730 | ||
5731 | ENTER; | |
5732 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
5733 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
5734 | ||
5735 | ioarcb->cmd_pkt.cdb[0] = INQUIRY; | |
5736 | ioarcb->cmd_pkt.cdb[1] = flags; | |
5737 | ioarcb->cmd_pkt.cdb[2] = page; | |
5738 | ioarcb->cmd_pkt.cdb[4] = xfer_len; | |
5739 | ||
5740 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
5741 | ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len); | |
5742 | ||
5743 | ioadl->address = cpu_to_be32(dma_addr); | |
5744 | ioadl->flags_and_data_len = | |
5745 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len); | |
5746 | ||
5747 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
5748 | LEAVE; | |
5749 | } | |
5750 | ||
62275040 | 5751 | /** |
5752 | * ipr_inquiry_page_supported - Is the given inquiry page supported | |
5753 | * @page0: inquiry page 0 buffer | |
5754 | * @page: page code. | |
5755 | * | |
5756 | * This function determines if the specified inquiry page is supported. | |
5757 | * | |
5758 | * Return value: | |
5759 | * 1 if page is supported / 0 if not | |
5760 | **/ | |
5761 | static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) | |
5762 | { | |
5763 | int i; | |
5764 | ||
5765 | for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) | |
5766 | if (page0->page[i] == page) | |
5767 | return 1; | |
5768 | ||
5769 | return 0; | |
5770 | } | |
5771 | ||
1da177e4 LT |
5772 | /** |
5773 | * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. | |
5774 | * @ipr_cmd: ipr command struct | |
5775 | * | |
5776 | * This function sends a Page 3 inquiry to the adapter | |
5777 | * to retrieve software VPD information. | |
5778 | * | |
5779 | * Return value: | |
5780 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5781 | **/ | |
5782 | static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) | |
62275040 | 5783 | { |
5784 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5785 | struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; | |
5786 | ||
5787 | ENTER; | |
5788 | ||
5789 | if (!ipr_inquiry_page_supported(page0, 1)) | |
5790 | ioa_cfg->cache_state = CACHE_NONE; | |
5791 | ||
5792 | ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; | |
5793 | ||
5794 | ipr_ioafp_inquiry(ipr_cmd, 1, 3, | |
5795 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), | |
5796 | sizeof(struct ipr_inquiry_page3)); | |
5797 | ||
5798 | LEAVE; | |
5799 | return IPR_RC_JOB_RETURN; | |
5800 | } | |
5801 | ||
5802 | /** | |
5803 | * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. | |
5804 | * @ipr_cmd: ipr command struct | |
5805 | * | |
5806 | * This function sends a Page 0 inquiry to the adapter | |
5807 | * to retrieve supported inquiry pages. | |
5808 | * | |
5809 | * Return value: | |
5810 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5811 | **/ | |
5812 | static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) | |
1da177e4 LT |
5813 | { |
5814 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5815 | char type[5]; | |
5816 | ||
5817 | ENTER; | |
5818 | ||
5819 | /* Grab the type out of the VPD and store it away */ | |
5820 | memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); | |
5821 | type[4] = '\0'; | |
5822 | ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); | |
5823 | ||
62275040 | 5824 | ipr_cmd->job_step = ipr_ioafp_page3_inquiry; |
1da177e4 | 5825 | |
62275040 | 5826 | ipr_ioafp_inquiry(ipr_cmd, 1, 0, |
5827 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), | |
5828 | sizeof(struct ipr_inquiry_page0)); | |
1da177e4 LT |
5829 | |
5830 | LEAVE; | |
5831 | return IPR_RC_JOB_RETURN; | |
5832 | } | |
5833 | ||
5834 | /** | |
5835 | * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. | |
5836 | * @ipr_cmd: ipr command struct | |
5837 | * | |
5838 | * This function sends a standard inquiry to the adapter. | |
5839 | * | |
5840 | * Return value: | |
5841 | * IPR_RC_JOB_RETURN | |
5842 | **/ | |
5843 | static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) | |
5844 | { | |
5845 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5846 | ||
5847 | ENTER; | |
62275040 | 5848 | ipr_cmd->job_step = ipr_ioafp_page0_inquiry; |
1da177e4 LT |
5849 | |
5850 | ipr_ioafp_inquiry(ipr_cmd, 0, 0, | |
5851 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), | |
5852 | sizeof(struct ipr_ioa_vpd)); | |
5853 | ||
5854 | LEAVE; | |
5855 | return IPR_RC_JOB_RETURN; | |
5856 | } | |
5857 | ||
5858 | /** | |
5859 | * ipr_ioafp_indentify_hrrq - Send Identify Host RRQ. | |
5860 | * @ipr_cmd: ipr command struct | |
5861 | * | |
5862 | * This function send an Identify Host Request Response Queue | |
5863 | * command to establish the HRRQ with the adapter. | |
5864 | * | |
5865 | * Return value: | |
5866 | * IPR_RC_JOB_RETURN | |
5867 | **/ | |
5868 | static int ipr_ioafp_indentify_hrrq(struct ipr_cmnd *ipr_cmd) | |
5869 | { | |
5870 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5871 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
5872 | ||
5873 | ENTER; | |
5874 | dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n"); | |
5875 | ||
5876 | ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; | |
5877 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
5878 | ||
5879 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
5880 | ioarcb->cmd_pkt.cdb[2] = | |
5881 | ((u32) ioa_cfg->host_rrq_dma >> 24) & 0xff; | |
5882 | ioarcb->cmd_pkt.cdb[3] = | |
5883 | ((u32) ioa_cfg->host_rrq_dma >> 16) & 0xff; | |
5884 | ioarcb->cmd_pkt.cdb[4] = | |
5885 | ((u32) ioa_cfg->host_rrq_dma >> 8) & 0xff; | |
5886 | ioarcb->cmd_pkt.cdb[5] = | |
5887 | ((u32) ioa_cfg->host_rrq_dma) & 0xff; | |
5888 | ioarcb->cmd_pkt.cdb[7] = | |
5889 | ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff; | |
5890 | ioarcb->cmd_pkt.cdb[8] = | |
5891 | (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff; | |
5892 | ||
5893 | ipr_cmd->job_step = ipr_ioafp_std_inquiry; | |
5894 | ||
5895 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
5896 | ||
5897 | LEAVE; | |
5898 | return IPR_RC_JOB_RETURN; | |
5899 | } | |
5900 | ||
5901 | /** | |
5902 | * ipr_reset_timer_done - Adapter reset timer function | |
5903 | * @ipr_cmd: ipr command struct | |
5904 | * | |
5905 | * Description: This function is used in adapter reset processing | |
5906 | * for timing events. If the reset_cmd pointer in the IOA | |
5907 | * config struct is not this adapter's we are doing nested | |
5908 | * resets and fail_all_ops will take care of freeing the | |
5909 | * command block. | |
5910 | * | |
5911 | * Return value: | |
5912 | * none | |
5913 | **/ | |
5914 | static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd) | |
5915 | { | |
5916 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5917 | unsigned long lock_flags = 0; | |
5918 | ||
5919 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
5920 | ||
5921 | if (ioa_cfg->reset_cmd == ipr_cmd) { | |
5922 | list_del(&ipr_cmd->queue); | |
5923 | ipr_cmd->done(ipr_cmd); | |
5924 | } | |
5925 | ||
5926 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
5927 | } | |
5928 | ||
5929 | /** | |
5930 | * ipr_reset_start_timer - Start a timer for adapter reset job | |
5931 | * @ipr_cmd: ipr command struct | |
5932 | * @timeout: timeout value | |
5933 | * | |
5934 | * Description: This function is used in adapter reset processing | |
5935 | * for timing events. If the reset_cmd pointer in the IOA | |
5936 | * config struct is not this adapter's we are doing nested | |
5937 | * resets and fail_all_ops will take care of freeing the | |
5938 | * command block. | |
5939 | * | |
5940 | * Return value: | |
5941 | * none | |
5942 | **/ | |
5943 | static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, | |
5944 | unsigned long timeout) | |
5945 | { | |
5946 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); | |
5947 | ipr_cmd->done = ipr_reset_ioa_job; | |
5948 | ||
5949 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; | |
5950 | ipr_cmd->timer.expires = jiffies + timeout; | |
5951 | ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done; | |
5952 | add_timer(&ipr_cmd->timer); | |
5953 | } | |
5954 | ||
5955 | /** | |
5956 | * ipr_init_ioa_mem - Initialize ioa_cfg control block | |
5957 | * @ioa_cfg: ioa cfg struct | |
5958 | * | |
5959 | * Return value: | |
5960 | * nothing | |
5961 | **/ | |
5962 | static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) | |
5963 | { | |
5964 | memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS); | |
5965 | ||
5966 | /* Initialize Host RRQ pointers */ | |
5967 | ioa_cfg->hrrq_start = ioa_cfg->host_rrq; | |
5968 | ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1]; | |
5969 | ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; | |
5970 | ioa_cfg->toggle_bit = 1; | |
5971 | ||
5972 | /* Zero out config table */ | |
5973 | memset(ioa_cfg->cfg_table, 0, sizeof(struct ipr_config_table)); | |
5974 | } | |
5975 | ||
5976 | /** | |
5977 | * ipr_reset_enable_ioa - Enable the IOA following a reset. | |
5978 | * @ipr_cmd: ipr command struct | |
5979 | * | |
5980 | * This function reinitializes some control blocks and | |
5981 | * enables destructive diagnostics on the adapter. | |
5982 | * | |
5983 | * Return value: | |
5984 | * IPR_RC_JOB_RETURN | |
5985 | **/ | |
5986 | static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) | |
5987 | { | |
5988 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5989 | volatile u32 int_reg; | |
5990 | ||
5991 | ENTER; | |
5992 | ipr_cmd->job_step = ipr_ioafp_indentify_hrrq; | |
5993 | ipr_init_ioa_mem(ioa_cfg); | |
5994 | ||
5995 | ioa_cfg->allow_interrupts = 1; | |
5996 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
5997 | ||
5998 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { | |
5999 | writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), | |
6000 | ioa_cfg->regs.clr_interrupt_mask_reg); | |
6001 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
6002 | return IPR_RC_JOB_CONTINUE; | |
6003 | } | |
6004 | ||
6005 | /* Enable destructive diagnostics on IOA */ | |
3d1d0da6 | 6006 | writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg); |
1da177e4 LT |
6007 | |
6008 | writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg); | |
6009 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
6010 | ||
6011 | dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n"); | |
6012 | ||
6013 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; | |
6014 | ipr_cmd->timer.expires = jiffies + (ipr_transop_timeout * HZ); | |
6015 | ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; | |
6016 | ipr_cmd->done = ipr_reset_ioa_job; | |
6017 | add_timer(&ipr_cmd->timer); | |
6018 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
6019 | ||
6020 | LEAVE; | |
6021 | return IPR_RC_JOB_RETURN; | |
6022 | } | |
6023 | ||
6024 | /** | |
6025 | * ipr_reset_wait_for_dump - Wait for a dump to timeout. | |
6026 | * @ipr_cmd: ipr command struct | |
6027 | * | |
6028 | * This function is invoked when an adapter dump has run out | |
6029 | * of processing time. | |
6030 | * | |
6031 | * Return value: | |
6032 | * IPR_RC_JOB_CONTINUE | |
6033 | **/ | |
6034 | static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) | |
6035 | { | |
6036 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6037 | ||
6038 | if (ioa_cfg->sdt_state == GET_DUMP) | |
6039 | ioa_cfg->sdt_state = ABORT_DUMP; | |
6040 | ||
6041 | ipr_cmd->job_step = ipr_reset_alert; | |
6042 | ||
6043 | return IPR_RC_JOB_CONTINUE; | |
6044 | } | |
6045 | ||
6046 | /** | |
6047 | * ipr_unit_check_no_data - Log a unit check/no data error log | |
6048 | * @ioa_cfg: ioa config struct | |
6049 | * | |
6050 | * Logs an error indicating the adapter unit checked, but for some | |
6051 | * reason, we were unable to fetch the unit check buffer. | |
6052 | * | |
6053 | * Return value: | |
6054 | * nothing | |
6055 | **/ | |
6056 | static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) | |
6057 | { | |
6058 | ioa_cfg->errors_logged++; | |
6059 | dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n"); | |
6060 | } | |
6061 | ||
6062 | /** | |
6063 | * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA | |
6064 | * @ioa_cfg: ioa config struct | |
6065 | * | |
6066 | * Fetches the unit check buffer from the adapter by clocking the data | |
6067 | * through the mailbox register. | |
6068 | * | |
6069 | * Return value: | |
6070 | * nothing | |
6071 | **/ | |
6072 | static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) | |
6073 | { | |
6074 | unsigned long mailbox; | |
6075 | struct ipr_hostrcb *hostrcb; | |
6076 | struct ipr_uc_sdt sdt; | |
6077 | int rc, length; | |
6078 | ||
6079 | mailbox = readl(ioa_cfg->ioa_mailbox); | |
6080 | ||
6081 | if (!ipr_sdt_is_fmt2(mailbox)) { | |
6082 | ipr_unit_check_no_data(ioa_cfg); | |
6083 | return; | |
6084 | } | |
6085 | ||
6086 | memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); | |
6087 | rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt, | |
6088 | (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); | |
6089 | ||
6090 | if (rc || (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE) || | |
6091 | !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY)) { | |
6092 | ipr_unit_check_no_data(ioa_cfg); | |
6093 | return; | |
6094 | } | |
6095 | ||
6096 | /* Find length of the first sdt entry (UC buffer) */ | |
6097 | length = (be32_to_cpu(sdt.entry[0].end_offset) - | |
6098 | be32_to_cpu(sdt.entry[0].bar_str_offset)) & IPR_FMT2_MBX_ADDR_MASK; | |
6099 | ||
6100 | hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, | |
6101 | struct ipr_hostrcb, queue); | |
6102 | list_del(&hostrcb->queue); | |
6103 | memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); | |
6104 | ||
6105 | rc = ipr_get_ldump_data_section(ioa_cfg, | |
6106 | be32_to_cpu(sdt.entry[0].bar_str_offset), | |
6107 | (__be32 *)&hostrcb->hcam, | |
6108 | min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); | |
6109 | ||
6110 | if (!rc) | |
6111 | ipr_handle_log_data(ioa_cfg, hostrcb); | |
6112 | else | |
6113 | ipr_unit_check_no_data(ioa_cfg); | |
6114 | ||
6115 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); | |
6116 | } | |
6117 | ||
6118 | /** | |
6119 | * ipr_reset_restore_cfg_space - Restore PCI config space. | |
6120 | * @ipr_cmd: ipr command struct | |
6121 | * | |
6122 | * Description: This function restores the saved PCI config space of | |
6123 | * the adapter, fails all outstanding ops back to the callers, and | |
6124 | * fetches the dump/unit check if applicable to this reset. | |
6125 | * | |
6126 | * Return value: | |
6127 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
6128 | **/ | |
6129 | static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) | |
6130 | { | |
6131 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6132 | int rc; | |
6133 | ||
6134 | ENTER; | |
b30197d2 | 6135 | pci_unblock_user_cfg_access(ioa_cfg->pdev); |
1da177e4 LT |
6136 | rc = pci_restore_state(ioa_cfg->pdev); |
6137 | ||
6138 | if (rc != PCIBIOS_SUCCESSFUL) { | |
6139 | ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); | |
6140 | return IPR_RC_JOB_CONTINUE; | |
6141 | } | |
6142 | ||
6143 | if (ipr_set_pcix_cmd_reg(ioa_cfg)) { | |
6144 | ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); | |
6145 | return IPR_RC_JOB_CONTINUE; | |
6146 | } | |
6147 | ||
6148 | ipr_fail_all_ops(ioa_cfg); | |
6149 | ||
6150 | if (ioa_cfg->ioa_unit_checked) { | |
6151 | ioa_cfg->ioa_unit_checked = 0; | |
6152 | ipr_get_unit_check_buffer(ioa_cfg); | |
6153 | ipr_cmd->job_step = ipr_reset_alert; | |
6154 | ipr_reset_start_timer(ipr_cmd, 0); | |
6155 | return IPR_RC_JOB_RETURN; | |
6156 | } | |
6157 | ||
6158 | if (ioa_cfg->in_ioa_bringdown) { | |
6159 | ipr_cmd->job_step = ipr_ioa_bringdown_done; | |
6160 | } else { | |
6161 | ipr_cmd->job_step = ipr_reset_enable_ioa; | |
6162 | ||
6163 | if (GET_DUMP == ioa_cfg->sdt_state) { | |
6164 | ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT); | |
6165 | ipr_cmd->job_step = ipr_reset_wait_for_dump; | |
6166 | schedule_work(&ioa_cfg->work_q); | |
6167 | return IPR_RC_JOB_RETURN; | |
6168 | } | |
6169 | } | |
6170 | ||
6171 | ENTER; | |
6172 | return IPR_RC_JOB_CONTINUE; | |
6173 | } | |
6174 | ||
6175 | /** | |
6176 | * ipr_reset_start_bist - Run BIST on the adapter. | |
6177 | * @ipr_cmd: ipr command struct | |
6178 | * | |
6179 | * Description: This function runs BIST on the adapter, then delays 2 seconds. | |
6180 | * | |
6181 | * Return value: | |
6182 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
6183 | **/ | |
6184 | static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) | |
6185 | { | |
6186 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6187 | int rc; | |
6188 | ||
6189 | ENTER; | |
b30197d2 | 6190 | pci_block_user_cfg_access(ioa_cfg->pdev); |
1da177e4 LT |
6191 | rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); |
6192 | ||
6193 | if (rc != PCIBIOS_SUCCESSFUL) { | |
6194 | ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); | |
6195 | rc = IPR_RC_JOB_CONTINUE; | |
6196 | } else { | |
6197 | ipr_cmd->job_step = ipr_reset_restore_cfg_space; | |
6198 | ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); | |
6199 | rc = IPR_RC_JOB_RETURN; | |
6200 | } | |
6201 | ||
6202 | LEAVE; | |
6203 | return rc; | |
6204 | } | |
6205 | ||
6206 | /** | |
6207 | * ipr_reset_allowed - Query whether or not IOA can be reset | |
6208 | * @ioa_cfg: ioa config struct | |
6209 | * | |
6210 | * Return value: | |
6211 | * 0 if reset not allowed / non-zero if reset is allowed | |
6212 | **/ | |
6213 | static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) | |
6214 | { | |
6215 | volatile u32 temp_reg; | |
6216 | ||
6217 | temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
6218 | return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); | |
6219 | } | |
6220 | ||
6221 | /** | |
6222 | * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. | |
6223 | * @ipr_cmd: ipr command struct | |
6224 | * | |
6225 | * Description: This function waits for adapter permission to run BIST, | |
6226 | * then runs BIST. If the adapter does not give permission after a | |
6227 | * reasonable time, we will reset the adapter anyway. The impact of | |
6228 | * resetting the adapter without warning the adapter is the risk of | |
6229 | * losing the persistent error log on the adapter. If the adapter is | |
6230 | * reset while it is writing to the flash on the adapter, the flash | |
6231 | * segment will have bad ECC and be zeroed. | |
6232 | * | |
6233 | * Return value: | |
6234 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
6235 | **/ | |
6236 | static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) | |
6237 | { | |
6238 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6239 | int rc = IPR_RC_JOB_RETURN; | |
6240 | ||
6241 | if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { | |
6242 | ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; | |
6243 | ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); | |
6244 | } else { | |
6245 | ipr_cmd->job_step = ipr_reset_start_bist; | |
6246 | rc = IPR_RC_JOB_CONTINUE; | |
6247 | } | |
6248 | ||
6249 | return rc; | |
6250 | } | |
6251 | ||
6252 | /** | |
6253 | * ipr_reset_alert_part2 - Alert the adapter of a pending reset | |
6254 | * @ipr_cmd: ipr command struct | |
6255 | * | |
6256 | * Description: This function alerts the adapter that it will be reset. | |
6257 | * If memory space is not currently enabled, proceed directly | |
6258 | * to running BIST on the adapter. The timer must always be started | |
6259 | * so we guarantee we do not run BIST from ipr_isr. | |
6260 | * | |
6261 | * Return value: | |
6262 | * IPR_RC_JOB_RETURN | |
6263 | **/ | |
6264 | static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) | |
6265 | { | |
6266 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6267 | u16 cmd_reg; | |
6268 | int rc; | |
6269 | ||
6270 | ENTER; | |
6271 | rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg); | |
6272 | ||
6273 | if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { | |
6274 | ipr_mask_and_clear_interrupts(ioa_cfg, ~0); | |
6275 | writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg); | |
6276 | ipr_cmd->job_step = ipr_reset_wait_to_start_bist; | |
6277 | } else { | |
6278 | ipr_cmd->job_step = ipr_reset_start_bist; | |
6279 | } | |
6280 | ||
6281 | ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; | |
6282 | ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); | |
6283 | ||
6284 | LEAVE; | |
6285 | return IPR_RC_JOB_RETURN; | |
6286 | } | |
6287 | ||
6288 | /** | |
6289 | * ipr_reset_ucode_download_done - Microcode download completion | |
6290 | * @ipr_cmd: ipr command struct | |
6291 | * | |
6292 | * Description: This function unmaps the microcode download buffer. | |
6293 | * | |
6294 | * Return value: | |
6295 | * IPR_RC_JOB_CONTINUE | |
6296 | **/ | |
6297 | static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) | |
6298 | { | |
6299 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6300 | struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; | |
6301 | ||
6302 | pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist, | |
6303 | sglist->num_sg, DMA_TO_DEVICE); | |
6304 | ||
6305 | ipr_cmd->job_step = ipr_reset_alert; | |
6306 | return IPR_RC_JOB_CONTINUE; | |
6307 | } | |
6308 | ||
6309 | /** | |
6310 | * ipr_reset_ucode_download - Download microcode to the adapter | |
6311 | * @ipr_cmd: ipr command struct | |
6312 | * | |
6313 | * Description: This function checks to see if it there is microcode | |
6314 | * to download to the adapter. If there is, a download is performed. | |
6315 | * | |
6316 | * Return value: | |
6317 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
6318 | **/ | |
6319 | static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) | |
6320 | { | |
6321 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6322 | struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; | |
6323 | ||
6324 | ENTER; | |
6325 | ipr_cmd->job_step = ipr_reset_alert; | |
6326 | ||
6327 | if (!sglist) | |
6328 | return IPR_RC_JOB_CONTINUE; | |
6329 | ||
6330 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
6331 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
6332 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; | |
6333 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; | |
6334 | ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; | |
6335 | ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; | |
6336 | ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; | |
6337 | ||
12baa420 | 6338 | ipr_build_ucode_ioadl(ipr_cmd, sglist); |
1da177e4 LT |
6339 | ipr_cmd->job_step = ipr_reset_ucode_download_done; |
6340 | ||
6341 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, | |
6342 | IPR_WRITE_BUFFER_TIMEOUT); | |
6343 | ||
6344 | LEAVE; | |
6345 | return IPR_RC_JOB_RETURN; | |
6346 | } | |
6347 | ||
6348 | /** | |
6349 | * ipr_reset_shutdown_ioa - Shutdown the adapter | |
6350 | * @ipr_cmd: ipr command struct | |
6351 | * | |
6352 | * Description: This function issues an adapter shutdown of the | |
6353 | * specified type to the specified adapter as part of the | |
6354 | * adapter reset job. | |
6355 | * | |
6356 | * Return value: | |
6357 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
6358 | **/ | |
6359 | static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) | |
6360 | { | |
6361 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6362 | enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; | |
6363 | unsigned long timeout; | |
6364 | int rc = IPR_RC_JOB_CONTINUE; | |
6365 | ||
6366 | ENTER; | |
6367 | if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) { | |
6368 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
6369 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
6370 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; | |
6371 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; | |
6372 | ||
6373 | if (shutdown_type == IPR_SHUTDOWN_ABBREV) | |
6374 | timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; | |
6375 | else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) | |
6376 | timeout = IPR_INTERNAL_TIMEOUT; | |
6377 | else | |
6378 | timeout = IPR_SHUTDOWN_TIMEOUT; | |
6379 | ||
6380 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); | |
6381 | ||
6382 | rc = IPR_RC_JOB_RETURN; | |
6383 | ipr_cmd->job_step = ipr_reset_ucode_download; | |
6384 | } else | |
6385 | ipr_cmd->job_step = ipr_reset_alert; | |
6386 | ||
6387 | LEAVE; | |
6388 | return rc; | |
6389 | } | |
6390 | ||
6391 | /** | |
6392 | * ipr_reset_ioa_job - Adapter reset job | |
6393 | * @ipr_cmd: ipr command struct | |
6394 | * | |
6395 | * Description: This function is the job router for the adapter reset job. | |
6396 | * | |
6397 | * Return value: | |
6398 | * none | |
6399 | **/ | |
6400 | static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) | |
6401 | { | |
6402 | u32 rc, ioasc; | |
1da177e4 LT |
6403 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
6404 | ||
6405 | do { | |
6406 | ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
6407 | ||
6408 | if (ioa_cfg->reset_cmd != ipr_cmd) { | |
6409 | /* | |
6410 | * We are doing nested adapter resets and this is | |
6411 | * not the current reset job. | |
6412 | */ | |
6413 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
6414 | return; | |
6415 | } | |
6416 | ||
6417 | if (IPR_IOASC_SENSE_KEY(ioasc)) { | |
dfed823e | 6418 | rc = ipr_cmd->job_step_failed(ipr_cmd); |
6419 | if (rc == IPR_RC_JOB_RETURN) | |
6420 | return; | |
1da177e4 LT |
6421 | } |
6422 | ||
6423 | ipr_reinit_ipr_cmnd(ipr_cmd); | |
dfed823e | 6424 | ipr_cmd->job_step_failed = ipr_reset_cmd_failed; |
1da177e4 LT |
6425 | rc = ipr_cmd->job_step(ipr_cmd); |
6426 | } while(rc == IPR_RC_JOB_CONTINUE); | |
6427 | } | |
6428 | ||
6429 | /** | |
6430 | * _ipr_initiate_ioa_reset - Initiate an adapter reset | |
6431 | * @ioa_cfg: ioa config struct | |
6432 | * @job_step: first job step of reset job | |
6433 | * @shutdown_type: shutdown type | |
6434 | * | |
6435 | * Description: This function will initiate the reset of the given adapter | |
6436 | * starting at the selected job step. | |
6437 | * If the caller needs to wait on the completion of the reset, | |
6438 | * the caller must sleep on the reset_wait_q. | |
6439 | * | |
6440 | * Return value: | |
6441 | * none | |
6442 | **/ | |
6443 | static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, | |
6444 | int (*job_step) (struct ipr_cmnd *), | |
6445 | enum ipr_shutdown_type shutdown_type) | |
6446 | { | |
6447 | struct ipr_cmnd *ipr_cmd; | |
6448 | ||
6449 | ioa_cfg->in_reset_reload = 1; | |
6450 | ioa_cfg->allow_cmds = 0; | |
6451 | scsi_block_requests(ioa_cfg->host); | |
6452 | ||
6453 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
6454 | ioa_cfg->reset_cmd = ipr_cmd; | |
6455 | ipr_cmd->job_step = job_step; | |
6456 | ipr_cmd->u.shutdown_type = shutdown_type; | |
6457 | ||
6458 | ipr_reset_ioa_job(ipr_cmd); | |
6459 | } | |
6460 | ||
6461 | /** | |
6462 | * ipr_initiate_ioa_reset - Initiate an adapter reset | |
6463 | * @ioa_cfg: ioa config struct | |
6464 | * @shutdown_type: shutdown type | |
6465 | * | |
6466 | * Description: This function will initiate the reset of the given adapter. | |
6467 | * If the caller needs to wait on the completion of the reset, | |
6468 | * the caller must sleep on the reset_wait_q. | |
6469 | * | |
6470 | * Return value: | |
6471 | * none | |
6472 | **/ | |
6473 | static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, | |
6474 | enum ipr_shutdown_type shutdown_type) | |
6475 | { | |
6476 | if (ioa_cfg->ioa_is_dead) | |
6477 | return; | |
6478 | ||
6479 | if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP) | |
6480 | ioa_cfg->sdt_state = ABORT_DUMP; | |
6481 | ||
6482 | if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { | |
6483 | dev_err(&ioa_cfg->pdev->dev, | |
6484 | "IOA taken offline - error recovery failed\n"); | |
6485 | ||
6486 | ioa_cfg->reset_retries = 0; | |
6487 | ioa_cfg->ioa_is_dead = 1; | |
6488 | ||
6489 | if (ioa_cfg->in_ioa_bringdown) { | |
6490 | ioa_cfg->reset_cmd = NULL; | |
6491 | ioa_cfg->in_reset_reload = 0; | |
6492 | ipr_fail_all_ops(ioa_cfg); | |
6493 | wake_up_all(&ioa_cfg->reset_wait_q); | |
6494 | ||
6495 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
6496 | scsi_unblock_requests(ioa_cfg->host); | |
6497 | spin_lock_irq(ioa_cfg->host->host_lock); | |
6498 | return; | |
6499 | } else { | |
6500 | ioa_cfg->in_ioa_bringdown = 1; | |
6501 | shutdown_type = IPR_SHUTDOWN_NONE; | |
6502 | } | |
6503 | } | |
6504 | ||
6505 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa, | |
6506 | shutdown_type); | |
6507 | } | |
6508 | ||
f8a88b19 LV |
6509 | /** |
6510 | * ipr_reset_freeze - Hold off all I/O activity | |
6511 | * @ipr_cmd: ipr command struct | |
6512 | * | |
6513 | * Description: If the PCI slot is frozen, hold off all I/O | |
6514 | * activity; then, as soon as the slot is available again, | |
6515 | * initiate an adapter reset. | |
6516 | */ | |
6517 | static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) | |
6518 | { | |
6519 | /* Disallow new interrupts, avoid loop */ | |
6520 | ipr_cmd->ioa_cfg->allow_interrupts = 0; | |
6521 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); | |
6522 | ipr_cmd->done = ipr_reset_ioa_job; | |
6523 | return IPR_RC_JOB_RETURN; | |
6524 | } | |
6525 | ||
6526 | /** | |
6527 | * ipr_pci_frozen - Called when slot has experienced a PCI bus error. | |
6528 | * @pdev: PCI device struct | |
6529 | * | |
6530 | * Description: This routine is called to tell us that the PCI bus | |
6531 | * is down. Can't do anything here, except put the device driver | |
6532 | * into a holding pattern, waiting for the PCI bus to come back. | |
6533 | */ | |
6534 | static void ipr_pci_frozen(struct pci_dev *pdev) | |
6535 | { | |
6536 | unsigned long flags = 0; | |
6537 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
6538 | ||
6539 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
6540 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE); | |
6541 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
6542 | } | |
6543 | ||
6544 | /** | |
6545 | * ipr_pci_slot_reset - Called when PCI slot has been reset. | |
6546 | * @pdev: PCI device struct | |
6547 | * | |
6548 | * Description: This routine is called by the pci error recovery | |
6549 | * code after the PCI slot has been reset, just before we | |
6550 | * should resume normal operations. | |
6551 | */ | |
6552 | static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) | |
6553 | { | |
6554 | unsigned long flags = 0; | |
6555 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
6556 | ||
6557 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
6558 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space, | |
6559 | IPR_SHUTDOWN_NONE); | |
6560 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
6561 | return PCI_ERS_RESULT_RECOVERED; | |
6562 | } | |
6563 | ||
6564 | /** | |
6565 | * ipr_pci_perm_failure - Called when PCI slot is dead for good. | |
6566 | * @pdev: PCI device struct | |
6567 | * | |
6568 | * Description: This routine is called when the PCI bus has | |
6569 | * permanently failed. | |
6570 | */ | |
6571 | static void ipr_pci_perm_failure(struct pci_dev *pdev) | |
6572 | { | |
6573 | unsigned long flags = 0; | |
6574 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
6575 | ||
6576 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
6577 | if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) | |
6578 | ioa_cfg->sdt_state = ABORT_DUMP; | |
6579 | ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES; | |
6580 | ioa_cfg->in_ioa_bringdown = 1; | |
6581 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
6582 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
6583 | } | |
6584 | ||
6585 | /** | |
6586 | * ipr_pci_error_detected - Called when a PCI error is detected. | |
6587 | * @pdev: PCI device struct | |
6588 | * @state: PCI channel state | |
6589 | * | |
6590 | * Description: Called when a PCI error is detected. | |
6591 | * | |
6592 | * Return value: | |
6593 | * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT | |
6594 | */ | |
6595 | static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, | |
6596 | pci_channel_state_t state) | |
6597 | { | |
6598 | switch (state) { | |
6599 | case pci_channel_io_frozen: | |
6600 | ipr_pci_frozen(pdev); | |
6601 | return PCI_ERS_RESULT_NEED_RESET; | |
6602 | case pci_channel_io_perm_failure: | |
6603 | ipr_pci_perm_failure(pdev); | |
6604 | return PCI_ERS_RESULT_DISCONNECT; | |
6605 | break; | |
6606 | default: | |
6607 | break; | |
6608 | } | |
6609 | return PCI_ERS_RESULT_NEED_RESET; | |
6610 | } | |
6611 | ||
1da177e4 LT |
6612 | /** |
6613 | * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) | |
6614 | * @ioa_cfg: ioa cfg struct | |
6615 | * | |
6616 | * Description: This is the second phase of adapter intialization | |
6617 | * This function takes care of initilizing the adapter to the point | |
6618 | * where it can accept new commands. | |
6619 | ||
6620 | * Return value: | |
6621 | * 0 on sucess / -EIO on failure | |
6622 | **/ | |
6623 | static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) | |
6624 | { | |
6625 | int rc = 0; | |
6626 | unsigned long host_lock_flags = 0; | |
6627 | ||
6628 | ENTER; | |
6629 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); | |
6630 | dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg); | |
ce155cce | 6631 | if (ioa_cfg->needs_hard_reset) { |
6632 | ioa_cfg->needs_hard_reset = 0; | |
6633 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
6634 | } else | |
6635 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, | |
6636 | IPR_SHUTDOWN_NONE); | |
1da177e4 LT |
6637 | |
6638 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
6639 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
6640 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); | |
6641 | ||
6642 | if (ioa_cfg->ioa_is_dead) { | |
6643 | rc = -EIO; | |
6644 | } else if (ipr_invalid_adapter(ioa_cfg)) { | |
6645 | if (!ipr_testmode) | |
6646 | rc = -EIO; | |
6647 | ||
6648 | dev_err(&ioa_cfg->pdev->dev, | |
6649 | "Adapter not supported in this hardware configuration.\n"); | |
6650 | } | |
6651 | ||
6652 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
6653 | ||
6654 | LEAVE; | |
6655 | return rc; | |
6656 | } | |
6657 | ||
6658 | /** | |
6659 | * ipr_free_cmd_blks - Frees command blocks allocated for an adapter | |
6660 | * @ioa_cfg: ioa config struct | |
6661 | * | |
6662 | * Return value: | |
6663 | * none | |
6664 | **/ | |
6665 | static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) | |
6666 | { | |
6667 | int i; | |
6668 | ||
6669 | for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { | |
6670 | if (ioa_cfg->ipr_cmnd_list[i]) | |
6671 | pci_pool_free(ioa_cfg->ipr_cmd_pool, | |
6672 | ioa_cfg->ipr_cmnd_list[i], | |
6673 | ioa_cfg->ipr_cmnd_list_dma[i]); | |
6674 | ||
6675 | ioa_cfg->ipr_cmnd_list[i] = NULL; | |
6676 | } | |
6677 | ||
6678 | if (ioa_cfg->ipr_cmd_pool) | |
6679 | pci_pool_destroy (ioa_cfg->ipr_cmd_pool); | |
6680 | ||
6681 | ioa_cfg->ipr_cmd_pool = NULL; | |
6682 | } | |
6683 | ||
6684 | /** | |
6685 | * ipr_free_mem - Frees memory allocated for an adapter | |
6686 | * @ioa_cfg: ioa cfg struct | |
6687 | * | |
6688 | * Return value: | |
6689 | * nothing | |
6690 | **/ | |
6691 | static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) | |
6692 | { | |
6693 | int i; | |
6694 | ||
6695 | kfree(ioa_cfg->res_entries); | |
6696 | pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs), | |
6697 | ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); | |
6698 | ipr_free_cmd_blks(ioa_cfg); | |
6699 | pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, | |
6700 | ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); | |
6701 | pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_config_table), | |
6702 | ioa_cfg->cfg_table, | |
6703 | ioa_cfg->cfg_table_dma); | |
6704 | ||
6705 | for (i = 0; i < IPR_NUM_HCAMS; i++) { | |
6706 | pci_free_consistent(ioa_cfg->pdev, | |
6707 | sizeof(struct ipr_hostrcb), | |
6708 | ioa_cfg->hostrcb[i], | |
6709 | ioa_cfg->hostrcb_dma[i]); | |
6710 | } | |
6711 | ||
6712 | ipr_free_dump(ioa_cfg); | |
1da177e4 LT |
6713 | kfree(ioa_cfg->trace); |
6714 | } | |
6715 | ||
6716 | /** | |
6717 | * ipr_free_all_resources - Free all allocated resources for an adapter. | |
6718 | * @ipr_cmd: ipr command struct | |
6719 | * | |
6720 | * This function frees all allocated resources for the | |
6721 | * specified adapter. | |
6722 | * | |
6723 | * Return value: | |
6724 | * none | |
6725 | **/ | |
6726 | static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) | |
6727 | { | |
6728 | struct pci_dev *pdev = ioa_cfg->pdev; | |
6729 | ||
6730 | ENTER; | |
6731 | free_irq(pdev->irq, ioa_cfg); | |
6732 | iounmap(ioa_cfg->hdw_dma_regs); | |
6733 | pci_release_regions(pdev); | |
6734 | ipr_free_mem(ioa_cfg); | |
6735 | scsi_host_put(ioa_cfg->host); | |
6736 | pci_disable_device(pdev); | |
6737 | LEAVE; | |
6738 | } | |
6739 | ||
6740 | /** | |
6741 | * ipr_alloc_cmd_blks - Allocate command blocks for an adapter | |
6742 | * @ioa_cfg: ioa config struct | |
6743 | * | |
6744 | * Return value: | |
6745 | * 0 on success / -ENOMEM on allocation failure | |
6746 | **/ | |
6747 | static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) | |
6748 | { | |
6749 | struct ipr_cmnd *ipr_cmd; | |
6750 | struct ipr_ioarcb *ioarcb; | |
6751 | dma_addr_t dma_addr; | |
6752 | int i; | |
6753 | ||
6754 | ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev, | |
6755 | sizeof(struct ipr_cmnd), 8, 0); | |
6756 | ||
6757 | if (!ioa_cfg->ipr_cmd_pool) | |
6758 | return -ENOMEM; | |
6759 | ||
6760 | for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { | |
6761 | ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, SLAB_KERNEL, &dma_addr); | |
6762 | ||
6763 | if (!ipr_cmd) { | |
6764 | ipr_free_cmd_blks(ioa_cfg); | |
6765 | return -ENOMEM; | |
6766 | } | |
6767 | ||
6768 | memset(ipr_cmd, 0, sizeof(*ipr_cmd)); | |
6769 | ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; | |
6770 | ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; | |
6771 | ||
6772 | ioarcb = &ipr_cmd->ioarcb; | |
6773 | ioarcb->ioarcb_host_pci_addr = cpu_to_be32(dma_addr); | |
6774 | ioarcb->host_response_handle = cpu_to_be32(i << 2); | |
6775 | ioarcb->write_ioadl_addr = | |
6776 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl)); | |
6777 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; | |
6778 | ioarcb->ioasa_host_pci_addr = | |
6779 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa)); | |
6780 | ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); | |
6781 | ipr_cmd->cmd_index = i; | |
6782 | ipr_cmd->ioa_cfg = ioa_cfg; | |
6783 | ipr_cmd->sense_buffer_dma = dma_addr + | |
6784 | offsetof(struct ipr_cmnd, sense_buffer); | |
6785 | ||
6786 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
6787 | } | |
6788 | ||
6789 | return 0; | |
6790 | } | |
6791 | ||
6792 | /** | |
6793 | * ipr_alloc_mem - Allocate memory for an adapter | |
6794 | * @ioa_cfg: ioa config struct | |
6795 | * | |
6796 | * Return value: | |
6797 | * 0 on success / non-zero for error | |
6798 | **/ | |
6799 | static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) | |
6800 | { | |
6801 | struct pci_dev *pdev = ioa_cfg->pdev; | |
6802 | int i, rc = -ENOMEM; | |
6803 | ||
6804 | ENTER; | |
0bc42e35 | 6805 | ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) * |
1da177e4 LT |
6806 | IPR_MAX_PHYSICAL_DEVS, GFP_KERNEL); |
6807 | ||
6808 | if (!ioa_cfg->res_entries) | |
6809 | goto out; | |
6810 | ||
1da177e4 LT |
6811 | for (i = 0; i < IPR_MAX_PHYSICAL_DEVS; i++) |
6812 | list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); | |
6813 | ||
6814 | ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev, | |
6815 | sizeof(struct ipr_misc_cbs), | |
6816 | &ioa_cfg->vpd_cbs_dma); | |
6817 | ||
6818 | if (!ioa_cfg->vpd_cbs) | |
6819 | goto out_free_res_entries; | |
6820 | ||
6821 | if (ipr_alloc_cmd_blks(ioa_cfg)) | |
6822 | goto out_free_vpd_cbs; | |
6823 | ||
6824 | ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev, | |
6825 | sizeof(u32) * IPR_NUM_CMD_BLKS, | |
6826 | &ioa_cfg->host_rrq_dma); | |
6827 | ||
6828 | if (!ioa_cfg->host_rrq) | |
6829 | goto out_ipr_free_cmd_blocks; | |
6830 | ||
6831 | ioa_cfg->cfg_table = pci_alloc_consistent(ioa_cfg->pdev, | |
6832 | sizeof(struct ipr_config_table), | |
6833 | &ioa_cfg->cfg_table_dma); | |
6834 | ||
6835 | if (!ioa_cfg->cfg_table) | |
6836 | goto out_free_host_rrq; | |
6837 | ||
6838 | for (i = 0; i < IPR_NUM_HCAMS; i++) { | |
6839 | ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev, | |
6840 | sizeof(struct ipr_hostrcb), | |
6841 | &ioa_cfg->hostrcb_dma[i]); | |
6842 | ||
6843 | if (!ioa_cfg->hostrcb[i]) | |
6844 | goto out_free_hostrcb_dma; | |
6845 | ||
6846 | ioa_cfg->hostrcb[i]->hostrcb_dma = | |
6847 | ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); | |
6848 | list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q); | |
6849 | } | |
6850 | ||
0bc42e35 | 6851 | ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) * |
1da177e4 LT |
6852 | IPR_NUM_TRACE_ENTRIES, GFP_KERNEL); |
6853 | ||
6854 | if (!ioa_cfg->trace) | |
6855 | goto out_free_hostrcb_dma; | |
6856 | ||
1da177e4 LT |
6857 | rc = 0; |
6858 | out: | |
6859 | LEAVE; | |
6860 | return rc; | |
6861 | ||
6862 | out_free_hostrcb_dma: | |
6863 | while (i-- > 0) { | |
6864 | pci_free_consistent(pdev, sizeof(struct ipr_hostrcb), | |
6865 | ioa_cfg->hostrcb[i], | |
6866 | ioa_cfg->hostrcb_dma[i]); | |
6867 | } | |
6868 | pci_free_consistent(pdev, sizeof(struct ipr_config_table), | |
6869 | ioa_cfg->cfg_table, ioa_cfg->cfg_table_dma); | |
6870 | out_free_host_rrq: | |
6871 | pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, | |
6872 | ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); | |
6873 | out_ipr_free_cmd_blocks: | |
6874 | ipr_free_cmd_blks(ioa_cfg); | |
6875 | out_free_vpd_cbs: | |
6876 | pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs), | |
6877 | ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); | |
6878 | out_free_res_entries: | |
6879 | kfree(ioa_cfg->res_entries); | |
6880 | goto out; | |
6881 | } | |
6882 | ||
6883 | /** | |
6884 | * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values | |
6885 | * @ioa_cfg: ioa config struct | |
6886 | * | |
6887 | * Return value: | |
6888 | * none | |
6889 | **/ | |
6890 | static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) | |
6891 | { | |
6892 | int i; | |
6893 | ||
6894 | for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { | |
6895 | ioa_cfg->bus_attr[i].bus = i; | |
6896 | ioa_cfg->bus_attr[i].qas_enabled = 0; | |
6897 | ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; | |
6898 | if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) | |
6899 | ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; | |
6900 | else | |
6901 | ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; | |
6902 | } | |
6903 | } | |
6904 | ||
6905 | /** | |
6906 | * ipr_init_ioa_cfg - Initialize IOA config struct | |
6907 | * @ioa_cfg: ioa config struct | |
6908 | * @host: scsi host struct | |
6909 | * @pdev: PCI dev struct | |
6910 | * | |
6911 | * Return value: | |
6912 | * none | |
6913 | **/ | |
6914 | static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, | |
6915 | struct Scsi_Host *host, struct pci_dev *pdev) | |
6916 | { | |
6917 | const struct ipr_interrupt_offsets *p; | |
6918 | struct ipr_interrupts *t; | |
6919 | void __iomem *base; | |
6920 | ||
6921 | ioa_cfg->host = host; | |
6922 | ioa_cfg->pdev = pdev; | |
6923 | ioa_cfg->log_level = ipr_log_level; | |
3d1d0da6 | 6924 | ioa_cfg->doorbell = IPR_DOORBELL; |
32d29776 | 6925 | if (!ipr_auto_create) |
6926 | ioa_cfg->doorbell |= IPR_RUNTIME_RESET; | |
1da177e4 LT |
6927 | sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER); |
6928 | sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL); | |
6929 | sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL); | |
6930 | sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL); | |
6931 | sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); | |
6932 | sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); | |
6933 | sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); | |
6934 | sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); | |
6935 | ||
6936 | INIT_LIST_HEAD(&ioa_cfg->free_q); | |
6937 | INIT_LIST_HEAD(&ioa_cfg->pending_q); | |
6938 | INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q); | |
6939 | INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q); | |
6940 | INIT_LIST_HEAD(&ioa_cfg->free_res_q); | |
6941 | INIT_LIST_HEAD(&ioa_cfg->used_res_q); | |
6942 | INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread, ioa_cfg); | |
6943 | init_waitqueue_head(&ioa_cfg->reset_wait_q); | |
6944 | ioa_cfg->sdt_state = INACTIVE; | |
62275040 | 6945 | if (ipr_enable_cache) |
6946 | ioa_cfg->cache_state = CACHE_ENABLED; | |
6947 | else | |
6948 | ioa_cfg->cache_state = CACHE_DISABLED; | |
1da177e4 LT |
6949 | |
6950 | ipr_initialize_bus_attr(ioa_cfg); | |
6951 | ||
6952 | host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; | |
6953 | host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; | |
6954 | host->max_channel = IPR_MAX_BUS_TO_SCAN; | |
6955 | host->unique_id = host->host_no; | |
6956 | host->max_cmd_len = IPR_MAX_CDB_LEN; | |
6957 | pci_set_drvdata(pdev, ioa_cfg); | |
6958 | ||
6959 | p = &ioa_cfg->chip_cfg->regs; | |
6960 | t = &ioa_cfg->regs; | |
6961 | base = ioa_cfg->hdw_dma_regs; | |
6962 | ||
6963 | t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; | |
6964 | t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; | |
6965 | t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; | |
6966 | t->clr_interrupt_reg = base + p->clr_interrupt_reg; | |
6967 | t->sense_interrupt_reg = base + p->sense_interrupt_reg; | |
6968 | t->ioarrin_reg = base + p->ioarrin_reg; | |
6969 | t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; | |
6970 | t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; | |
6971 | t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; | |
6972 | } | |
6973 | ||
6974 | /** | |
6975 | * ipr_get_chip_cfg - Find adapter chip configuration | |
6976 | * @dev_id: PCI device id struct | |
6977 | * | |
6978 | * Return value: | |
6979 | * ptr to chip config on success / NULL on failure | |
6980 | **/ | |
6981 | static const struct ipr_chip_cfg_t * __devinit | |
6982 | ipr_get_chip_cfg(const struct pci_device_id *dev_id) | |
6983 | { | |
6984 | int i; | |
6985 | ||
6986 | if (dev_id->driver_data) | |
6987 | return (const struct ipr_chip_cfg_t *)dev_id->driver_data; | |
6988 | ||
6989 | for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) | |
6990 | if (ipr_chip[i].vendor == dev_id->vendor && | |
6991 | ipr_chip[i].device == dev_id->device) | |
6992 | return ipr_chip[i].cfg; | |
6993 | return NULL; | |
6994 | } | |
6995 | ||
6996 | /** | |
6997 | * ipr_probe_ioa - Allocates memory and does first stage of initialization | |
6998 | * @pdev: PCI device struct | |
6999 | * @dev_id: PCI device id struct | |
7000 | * | |
7001 | * Return value: | |
7002 | * 0 on success / non-zero on failure | |
7003 | **/ | |
7004 | static int __devinit ipr_probe_ioa(struct pci_dev *pdev, | |
7005 | const struct pci_device_id *dev_id) | |
7006 | { | |
7007 | struct ipr_ioa_cfg *ioa_cfg; | |
7008 | struct Scsi_Host *host; | |
7009 | unsigned long ipr_regs_pci; | |
7010 | void __iomem *ipr_regs; | |
a2a65a3e | 7011 | int rc = PCIBIOS_SUCCESSFUL; |
ce155cce | 7012 | volatile u32 mask, uproc; |
1da177e4 LT |
7013 | |
7014 | ENTER; | |
7015 | ||
7016 | if ((rc = pci_enable_device(pdev))) { | |
7017 | dev_err(&pdev->dev, "Cannot enable adapter\n"); | |
7018 | goto out; | |
7019 | } | |
7020 | ||
7021 | dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq); | |
7022 | ||
7023 | host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); | |
7024 | ||
7025 | if (!host) { | |
7026 | dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n"); | |
7027 | rc = -ENOMEM; | |
7028 | goto out_disable; | |
7029 | } | |
7030 | ||
7031 | ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; | |
7032 | memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); | |
35a39691 BK |
7033 | host->transportt = &ipr_transport_template; |
7034 | ata_host_init(&ioa_cfg->ata_host, &pdev->dev, | |
7035 | sata_port_info.flags, &ipr_sata_ops); | |
1da177e4 LT |
7036 | |
7037 | ioa_cfg->chip_cfg = ipr_get_chip_cfg(dev_id); | |
7038 | ||
7039 | if (!ioa_cfg->chip_cfg) { | |
7040 | dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n", | |
7041 | dev_id->vendor, dev_id->device); | |
7042 | goto out_scsi_host_put; | |
7043 | } | |
7044 | ||
7045 | ipr_regs_pci = pci_resource_start(pdev, 0); | |
7046 | ||
7047 | rc = pci_request_regions(pdev, IPR_NAME); | |
7048 | if (rc < 0) { | |
7049 | dev_err(&pdev->dev, | |
7050 | "Couldn't register memory range of registers\n"); | |
7051 | goto out_scsi_host_put; | |
7052 | } | |
7053 | ||
7054 | ipr_regs = ioremap(ipr_regs_pci, pci_resource_len(pdev, 0)); | |
7055 | ||
7056 | if (!ipr_regs) { | |
7057 | dev_err(&pdev->dev, | |
7058 | "Couldn't map memory range of registers\n"); | |
7059 | rc = -ENOMEM; | |
7060 | goto out_release_regions; | |
7061 | } | |
7062 | ||
7063 | ioa_cfg->hdw_dma_regs = ipr_regs; | |
7064 | ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; | |
7065 | ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; | |
7066 | ||
7067 | ipr_init_ioa_cfg(ioa_cfg, host, pdev); | |
7068 | ||
7069 | pci_set_master(pdev); | |
7070 | ||
7071 | rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | |
7072 | if (rc < 0) { | |
7073 | dev_err(&pdev->dev, "Failed to set PCI DMA mask\n"); | |
7074 | goto cleanup_nomem; | |
7075 | } | |
7076 | ||
7077 | rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, | |
7078 | ioa_cfg->chip_cfg->cache_line_size); | |
7079 | ||
7080 | if (rc != PCIBIOS_SUCCESSFUL) { | |
7081 | dev_err(&pdev->dev, "Write of cache line size failed\n"); | |
7082 | rc = -EIO; | |
7083 | goto cleanup_nomem; | |
7084 | } | |
7085 | ||
7086 | /* Save away PCI config space for use following IOA reset */ | |
7087 | rc = pci_save_state(pdev); | |
7088 | ||
7089 | if (rc != PCIBIOS_SUCCESSFUL) { | |
7090 | dev_err(&pdev->dev, "Failed to save PCI config space\n"); | |
7091 | rc = -EIO; | |
7092 | goto cleanup_nomem; | |
7093 | } | |
7094 | ||
7095 | if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) | |
7096 | goto cleanup_nomem; | |
7097 | ||
7098 | if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) | |
7099 | goto cleanup_nomem; | |
7100 | ||
7101 | rc = ipr_alloc_mem(ioa_cfg); | |
7102 | if (rc < 0) { | |
7103 | dev_err(&pdev->dev, | |
7104 | "Couldn't allocate enough memory for device driver!\n"); | |
7105 | goto cleanup_nomem; | |
7106 | } | |
7107 | ||
ce155cce | 7108 | /* |
7109 | * If HRRQ updated interrupt is not masked, or reset alert is set, | |
7110 | * the card is in an unknown state and needs a hard reset | |
7111 | */ | |
7112 | mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
7113 | uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg); | |
7114 | if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) | |
7115 | ioa_cfg->needs_hard_reset = 1; | |
7116 | ||
1da177e4 | 7117 | ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); |
1d6f359a | 7118 | rc = request_irq(pdev->irq, ipr_isr, IRQF_SHARED, IPR_NAME, ioa_cfg); |
1da177e4 LT |
7119 | |
7120 | if (rc) { | |
7121 | dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n", | |
7122 | pdev->irq, rc); | |
7123 | goto cleanup_nolog; | |
7124 | } | |
7125 | ||
7126 | spin_lock(&ipr_driver_lock); | |
7127 | list_add_tail(&ioa_cfg->queue, &ipr_ioa_head); | |
7128 | spin_unlock(&ipr_driver_lock); | |
7129 | ||
7130 | LEAVE; | |
7131 | out: | |
7132 | return rc; | |
7133 | ||
7134 | cleanup_nolog: | |
7135 | ipr_free_mem(ioa_cfg); | |
7136 | cleanup_nomem: | |
7137 | iounmap(ipr_regs); | |
7138 | out_release_regions: | |
7139 | pci_release_regions(pdev); | |
7140 | out_scsi_host_put: | |
7141 | scsi_host_put(host); | |
7142 | out_disable: | |
7143 | pci_disable_device(pdev); | |
7144 | goto out; | |
7145 | } | |
7146 | ||
7147 | /** | |
7148 | * ipr_scan_vsets - Scans for VSET devices | |
7149 | * @ioa_cfg: ioa config struct | |
7150 | * | |
7151 | * Description: Since the VSET resources do not follow SAM in that we can have | |
7152 | * sparse LUNs with no LUN 0, we have to scan for these ourselves. | |
7153 | * | |
7154 | * Return value: | |
7155 | * none | |
7156 | **/ | |
7157 | static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg) | |
7158 | { | |
7159 | int target, lun; | |
7160 | ||
7161 | for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++) | |
7162 | for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ ) | |
7163 | scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun); | |
7164 | } | |
7165 | ||
7166 | /** | |
7167 | * ipr_initiate_ioa_bringdown - Bring down an adapter | |
7168 | * @ioa_cfg: ioa config struct | |
7169 | * @shutdown_type: shutdown type | |
7170 | * | |
7171 | * Description: This function will initiate bringing down the adapter. | |
7172 | * This consists of issuing an IOA shutdown to the adapter | |
7173 | * to flush the cache, and running BIST. | |
7174 | * If the caller needs to wait on the completion of the reset, | |
7175 | * the caller must sleep on the reset_wait_q. | |
7176 | * | |
7177 | * Return value: | |
7178 | * none | |
7179 | **/ | |
7180 | static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, | |
7181 | enum ipr_shutdown_type shutdown_type) | |
7182 | { | |
7183 | ENTER; | |
7184 | if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) | |
7185 | ioa_cfg->sdt_state = ABORT_DUMP; | |
7186 | ioa_cfg->reset_retries = 0; | |
7187 | ioa_cfg->in_ioa_bringdown = 1; | |
7188 | ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); | |
7189 | LEAVE; | |
7190 | } | |
7191 | ||
7192 | /** | |
7193 | * __ipr_remove - Remove a single adapter | |
7194 | * @pdev: pci device struct | |
7195 | * | |
7196 | * Adapter hot plug remove entry point. | |
7197 | * | |
7198 | * Return value: | |
7199 | * none | |
7200 | **/ | |
7201 | static void __ipr_remove(struct pci_dev *pdev) | |
7202 | { | |
7203 | unsigned long host_lock_flags = 0; | |
7204 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
7205 | ENTER; | |
7206 | ||
7207 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); | |
7208 | ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
7209 | ||
7210 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
7211 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
5cbf5eae | 7212 | flush_scheduled_work(); |
1da177e4 LT |
7213 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); |
7214 | ||
7215 | spin_lock(&ipr_driver_lock); | |
7216 | list_del(&ioa_cfg->queue); | |
7217 | spin_unlock(&ipr_driver_lock); | |
7218 | ||
7219 | if (ioa_cfg->sdt_state == ABORT_DUMP) | |
7220 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; | |
7221 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
7222 | ||
7223 | ipr_free_all_resources(ioa_cfg); | |
7224 | ||
7225 | LEAVE; | |
7226 | } | |
7227 | ||
7228 | /** | |
7229 | * ipr_remove - IOA hot plug remove entry point | |
7230 | * @pdev: pci device struct | |
7231 | * | |
7232 | * Adapter hot plug remove entry point. | |
7233 | * | |
7234 | * Return value: | |
7235 | * none | |
7236 | **/ | |
7237 | static void ipr_remove(struct pci_dev *pdev) | |
7238 | { | |
7239 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
7240 | ||
7241 | ENTER; | |
7242 | ||
1da177e4 LT |
7243 | ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj, |
7244 | &ipr_trace_attr); | |
7245 | ipr_remove_dump_file(&ioa_cfg->host->shost_classdev.kobj, | |
7246 | &ipr_dump_attr); | |
7247 | scsi_remove_host(ioa_cfg->host); | |
7248 | ||
7249 | __ipr_remove(pdev); | |
7250 | ||
7251 | LEAVE; | |
7252 | } | |
7253 | ||
7254 | /** | |
7255 | * ipr_probe - Adapter hot plug add entry point | |
7256 | * | |
7257 | * Return value: | |
7258 | * 0 on success / non-zero on failure | |
7259 | **/ | |
7260 | static int __devinit ipr_probe(struct pci_dev *pdev, | |
7261 | const struct pci_device_id *dev_id) | |
7262 | { | |
7263 | struct ipr_ioa_cfg *ioa_cfg; | |
7264 | int rc; | |
7265 | ||
7266 | rc = ipr_probe_ioa(pdev, dev_id); | |
7267 | ||
7268 | if (rc) | |
7269 | return rc; | |
7270 | ||
7271 | ioa_cfg = pci_get_drvdata(pdev); | |
7272 | rc = ipr_probe_ioa_part2(ioa_cfg); | |
7273 | ||
7274 | if (rc) { | |
7275 | __ipr_remove(pdev); | |
7276 | return rc; | |
7277 | } | |
7278 | ||
7279 | rc = scsi_add_host(ioa_cfg->host, &pdev->dev); | |
7280 | ||
7281 | if (rc) { | |
7282 | __ipr_remove(pdev); | |
7283 | return rc; | |
7284 | } | |
7285 | ||
7286 | rc = ipr_create_trace_file(&ioa_cfg->host->shost_classdev.kobj, | |
7287 | &ipr_trace_attr); | |
7288 | ||
7289 | if (rc) { | |
7290 | scsi_remove_host(ioa_cfg->host); | |
7291 | __ipr_remove(pdev); | |
7292 | return rc; | |
7293 | } | |
7294 | ||
7295 | rc = ipr_create_dump_file(&ioa_cfg->host->shost_classdev.kobj, | |
7296 | &ipr_dump_attr); | |
7297 | ||
7298 | if (rc) { | |
7299 | ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj, | |
7300 | &ipr_trace_attr); | |
7301 | scsi_remove_host(ioa_cfg->host); | |
7302 | __ipr_remove(pdev); | |
7303 | return rc; | |
7304 | } | |
7305 | ||
7306 | scsi_scan_host(ioa_cfg->host); | |
7307 | ipr_scan_vsets(ioa_cfg); | |
7308 | scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN); | |
7309 | ioa_cfg->allow_ml_add_del = 1; | |
11cd8f12 | 7310 | ioa_cfg->host->max_channel = IPR_VSET_BUS; |
1da177e4 LT |
7311 | schedule_work(&ioa_cfg->work_q); |
7312 | return 0; | |
7313 | } | |
7314 | ||
7315 | /** | |
7316 | * ipr_shutdown - Shutdown handler. | |
d18c3db5 | 7317 | * @pdev: pci device struct |
1da177e4 LT |
7318 | * |
7319 | * This function is invoked upon system shutdown/reboot. It will issue | |
7320 | * an adapter shutdown to the adapter to flush the write cache. | |
7321 | * | |
7322 | * Return value: | |
7323 | * none | |
7324 | **/ | |
d18c3db5 | 7325 | static void ipr_shutdown(struct pci_dev *pdev) |
1da177e4 | 7326 | { |
d18c3db5 | 7327 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
1da177e4 LT |
7328 | unsigned long lock_flags = 0; |
7329 | ||
7330 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
7331 | ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
7332 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
7333 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
7334 | } | |
7335 | ||
7336 | static struct pci_device_id ipr_pci_table[] __devinitdata = { | |
7337 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, | |
7338 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, | |
7339 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
7340 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, | |
7341 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, | |
7342 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
7343 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, | |
7344 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, | |
7345 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
7346 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, | |
7347 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, | |
7348 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
7349 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, | |
7350 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, | |
7351 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
7352 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, | |
7353 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, | |
7354 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
7355 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, | |
7356 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, | |
7357 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
86f51436 | 7358 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
7359 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, | |
7360 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
7361 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, | |
7362 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, | |
7363 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
7364 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, | |
7365 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, | |
7366 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
60e7486b BK |
7367 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, |
7368 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, | |
7369 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
86f51436 | 7370 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, |
7371 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, | |
7372 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
7373 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, | |
7374 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, | |
7375 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
60e7486b BK |
7376 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, |
7377 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, | |
7378 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
7379 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, | |
7380 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B8, | |
7381 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
7382 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, | |
7383 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, | |
7384 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
1da177e4 LT |
7385 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, |
7386 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, | |
7387 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] }, | |
7388 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, | |
7389 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, | |
7390 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] }, | |
86f51436 | 7391 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
7392 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, | |
7393 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] }, | |
60e7486b BK |
7394 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
7395 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, | |
7396 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] }, | |
1da177e4 LT |
7397 | { } |
7398 | }; | |
7399 | MODULE_DEVICE_TABLE(pci, ipr_pci_table); | |
7400 | ||
f8a88b19 LV |
7401 | static struct pci_error_handlers ipr_err_handler = { |
7402 | .error_detected = ipr_pci_error_detected, | |
7403 | .slot_reset = ipr_pci_slot_reset, | |
7404 | }; | |
7405 | ||
1da177e4 LT |
7406 | static struct pci_driver ipr_driver = { |
7407 | .name = IPR_NAME, | |
7408 | .id_table = ipr_pci_table, | |
7409 | .probe = ipr_probe, | |
7410 | .remove = ipr_remove, | |
d18c3db5 | 7411 | .shutdown = ipr_shutdown, |
f8a88b19 | 7412 | .err_handler = &ipr_err_handler, |
1da177e4 LT |
7413 | }; |
7414 | ||
7415 | /** | |
7416 | * ipr_init - Module entry point | |
7417 | * | |
7418 | * Return value: | |
7419 | * 0 on success / negative value on failure | |
7420 | **/ | |
7421 | static int __init ipr_init(void) | |
7422 | { | |
7423 | ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", | |
7424 | IPR_DRIVER_VERSION, IPR_DRIVER_DATE); | |
7425 | ||
dcbccbde | 7426 | return pci_register_driver(&ipr_driver); |
1da177e4 LT |
7427 | } |
7428 | ||
7429 | /** | |
7430 | * ipr_exit - Module unload | |
7431 | * | |
7432 | * Module unload entry point. | |
7433 | * | |
7434 | * Return value: | |
7435 | * none | |
7436 | **/ | |
7437 | static void __exit ipr_exit(void) | |
7438 | { | |
7439 | pci_unregister_driver(&ipr_driver); | |
7440 | } | |
7441 | ||
7442 | module_init(ipr_init); | |
7443 | module_exit(ipr_exit); |