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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> | |
1da177e4 LT |
82 | #include "ipr.h" |
83 | ||
84 | /* | |
85 | * Global Data | |
86 | */ | |
87 | static struct list_head ipr_ioa_head = LIST_HEAD_INIT(ipr_ioa_head); | |
88 | static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL; | |
89 | static unsigned int ipr_max_speed = 1; | |
90 | static int ipr_testmode = 0; | |
91 | static unsigned int ipr_fastfail = 0; | |
92 | static unsigned int ipr_transop_timeout = IPR_OPERATIONAL_TIMEOUT; | |
62275040 | 93 | static unsigned int ipr_enable_cache = 1; |
d3c74871 | 94 | static unsigned int ipr_debug = 0; |
32d29776 | 95 | static int ipr_auto_create = 1; |
1da177e4 LT |
96 | static DEFINE_SPINLOCK(ipr_driver_lock); |
97 | ||
98 | /* This table describes the differences between DMA controller chips */ | |
99 | static const struct ipr_chip_cfg_t ipr_chip_cfg[] = { | |
60e7486b | 100 | { /* Gemstone, Citrine, Obsidian, and Obsidian-E */ |
1da177e4 LT |
101 | .mailbox = 0x0042C, |
102 | .cache_line_size = 0x20, | |
103 | { | |
104 | .set_interrupt_mask_reg = 0x0022C, | |
105 | .clr_interrupt_mask_reg = 0x00230, | |
106 | .sense_interrupt_mask_reg = 0x0022C, | |
107 | .clr_interrupt_reg = 0x00228, | |
108 | .sense_interrupt_reg = 0x00224, | |
109 | .ioarrin_reg = 0x00404, | |
110 | .sense_uproc_interrupt_reg = 0x00214, | |
111 | .set_uproc_interrupt_reg = 0x00214, | |
112 | .clr_uproc_interrupt_reg = 0x00218 | |
113 | } | |
114 | }, | |
115 | { /* Snipe and Scamp */ | |
116 | .mailbox = 0x0052C, | |
117 | .cache_line_size = 0x20, | |
118 | { | |
119 | .set_interrupt_mask_reg = 0x00288, | |
120 | .clr_interrupt_mask_reg = 0x0028C, | |
121 | .sense_interrupt_mask_reg = 0x00288, | |
122 | .clr_interrupt_reg = 0x00284, | |
123 | .sense_interrupt_reg = 0x00280, | |
124 | .ioarrin_reg = 0x00504, | |
125 | .sense_uproc_interrupt_reg = 0x00290, | |
126 | .set_uproc_interrupt_reg = 0x00290, | |
127 | .clr_uproc_interrupt_reg = 0x00294 | |
128 | } | |
129 | }, | |
130 | }; | |
131 | ||
132 | static const struct ipr_chip_t ipr_chip[] = { | |
133 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, &ipr_chip_cfg[0] }, | |
134 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, &ipr_chip_cfg[0] }, | |
86f51436 | 135 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, &ipr_chip_cfg[0] }, |
136 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, &ipr_chip_cfg[0] }, | |
60e7486b | 137 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, &ipr_chip_cfg[0] }, |
1da177e4 LT |
138 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, &ipr_chip_cfg[1] }, |
139 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, &ipr_chip_cfg[1] } | |
140 | }; | |
141 | ||
142 | static int ipr_max_bus_speeds [] = { | |
143 | IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE | |
144 | }; | |
145 | ||
146 | MODULE_AUTHOR("Brian King <brking@us.ibm.com>"); | |
147 | MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver"); | |
148 | module_param_named(max_speed, ipr_max_speed, uint, 0); | |
149 | MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320"); | |
150 | module_param_named(log_level, ipr_log_level, uint, 0); | |
151 | MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver"); | |
152 | module_param_named(testmode, ipr_testmode, int, 0); | |
153 | MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations"); | |
154 | module_param_named(fastfail, ipr_fastfail, int, 0); | |
155 | MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries"); | |
156 | module_param_named(transop_timeout, ipr_transop_timeout, int, 0); | |
157 | MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)"); | |
62275040 | 158 | module_param_named(enable_cache, ipr_enable_cache, int, 0); |
159 | MODULE_PARM_DESC(enable_cache, "Enable adapter's non-volatile write cache (default: 1)"); | |
d3c74871 | 160 | module_param_named(debug, ipr_debug, int, 0); |
161 | MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)"); | |
32d29776 | 162 | module_param_named(auto_create, ipr_auto_create, int, 0); |
163 | MODULE_PARM_DESC(auto_create, "Auto-create single device RAID 0 arrays when initialized (default: 1)"); | |
1da177e4 LT |
164 | MODULE_LICENSE("GPL"); |
165 | MODULE_VERSION(IPR_DRIVER_VERSION); | |
166 | ||
1da177e4 LT |
167 | /* A constant array of IOASCs/URCs/Error Messages */ |
168 | static const | |
169 | struct ipr_error_table_t ipr_error_table[] = { | |
170 | {0x00000000, 1, 1, | |
171 | "8155: An unknown error was received"}, | |
172 | {0x00330000, 0, 0, | |
173 | "Soft underlength error"}, | |
174 | {0x005A0000, 0, 0, | |
175 | "Command to be cancelled not found"}, | |
176 | {0x00808000, 0, 0, | |
177 | "Qualified success"}, | |
178 | {0x01080000, 1, 1, | |
179 | "FFFE: Soft device bus error recovered by the IOA"}, | |
896bbd21 BK |
180 | {0x01088100, 0, 1, |
181 | "4101: Soft device bus fabric error"}, | |
1da177e4 LT |
182 | {0x01170600, 0, 1, |
183 | "FFF9: Device sector reassign successful"}, | |
184 | {0x01170900, 0, 1, | |
185 | "FFF7: Media error recovered by device rewrite procedures"}, | |
186 | {0x01180200, 0, 1, | |
187 | "7001: IOA sector reassignment successful"}, | |
188 | {0x01180500, 0, 1, | |
189 | "FFF9: Soft media error. Sector reassignment recommended"}, | |
190 | {0x01180600, 0, 1, | |
191 | "FFF7: Media error recovered by IOA rewrite procedures"}, | |
192 | {0x01418000, 0, 1, | |
193 | "FF3D: Soft PCI bus error recovered by the IOA"}, | |
194 | {0x01440000, 1, 1, | |
195 | "FFF6: Device hardware error recovered by the IOA"}, | |
196 | {0x01448100, 0, 1, | |
197 | "FFF6: Device hardware error recovered by the device"}, | |
198 | {0x01448200, 1, 1, | |
199 | "FF3D: Soft IOA error recovered by the IOA"}, | |
200 | {0x01448300, 0, 1, | |
201 | "FFFA: Undefined device response recovered by the IOA"}, | |
202 | {0x014A0000, 1, 1, | |
203 | "FFF6: Device bus error, message or command phase"}, | |
35a39691 BK |
204 | {0x014A8000, 0, 1, |
205 | "FFFE: Task Management Function failed"}, | |
1da177e4 LT |
206 | {0x015D0000, 0, 1, |
207 | "FFF6: Failure prediction threshold exceeded"}, | |
208 | {0x015D9200, 0, 1, | |
209 | "8009: Impending cache battery pack failure"}, | |
210 | {0x02040400, 0, 0, | |
211 | "34FF: Disk device format in progress"}, | |
212 | {0x023F0000, 0, 0, | |
213 | "Synchronization required"}, | |
214 | {0x024E0000, 0, 0, | |
215 | "No ready, IOA shutdown"}, | |
216 | {0x025A0000, 0, 0, | |
217 | "Not ready, IOA has been shutdown"}, | |
218 | {0x02670100, 0, 1, | |
219 | "3020: Storage subsystem configuration error"}, | |
220 | {0x03110B00, 0, 0, | |
221 | "FFF5: Medium error, data unreadable, recommend reassign"}, | |
222 | {0x03110C00, 0, 0, | |
223 | "7000: Medium error, data unreadable, do not reassign"}, | |
224 | {0x03310000, 0, 1, | |
225 | "FFF3: Disk media format bad"}, | |
226 | {0x04050000, 0, 1, | |
227 | "3002: Addressed device failed to respond to selection"}, | |
228 | {0x04080000, 1, 1, | |
229 | "3100: Device bus error"}, | |
230 | {0x04080100, 0, 1, | |
231 | "3109: IOA timed out a device command"}, | |
232 | {0x04088000, 0, 0, | |
233 | "3120: SCSI bus is not operational"}, | |
896bbd21 BK |
234 | {0x04088100, 0, 1, |
235 | "4100: Hard device bus fabric error"}, | |
1da177e4 LT |
236 | {0x04118000, 0, 1, |
237 | "9000: IOA reserved area data check"}, | |
238 | {0x04118100, 0, 1, | |
239 | "9001: IOA reserved area invalid data pattern"}, | |
240 | {0x04118200, 0, 1, | |
241 | "9002: IOA reserved area LRC error"}, | |
242 | {0x04320000, 0, 1, | |
243 | "102E: Out of alternate sectors for disk storage"}, | |
244 | {0x04330000, 1, 1, | |
245 | "FFF4: Data transfer underlength error"}, | |
246 | {0x04338000, 1, 1, | |
247 | "FFF4: Data transfer overlength error"}, | |
248 | {0x043E0100, 0, 1, | |
249 | "3400: Logical unit failure"}, | |
250 | {0x04408500, 0, 1, | |
251 | "FFF4: Device microcode is corrupt"}, | |
252 | {0x04418000, 1, 1, | |
253 | "8150: PCI bus error"}, | |
254 | {0x04430000, 1, 0, | |
255 | "Unsupported device bus message received"}, | |
256 | {0x04440000, 1, 1, | |
257 | "FFF4: Disk device problem"}, | |
258 | {0x04448200, 1, 1, | |
259 | "8150: Permanent IOA failure"}, | |
260 | {0x04448300, 0, 1, | |
261 | "3010: Disk device returned wrong response to IOA"}, | |
262 | {0x04448400, 0, 1, | |
263 | "8151: IOA microcode error"}, | |
264 | {0x04448500, 0, 0, | |
265 | "Device bus status error"}, | |
266 | {0x04448600, 0, 1, | |
267 | "8157: IOA error requiring IOA reset to recover"}, | |
35a39691 BK |
268 | {0x04448700, 0, 0, |
269 | "ATA device status error"}, | |
1da177e4 LT |
270 | {0x04490000, 0, 0, |
271 | "Message reject received from the device"}, | |
272 | {0x04449200, 0, 1, | |
273 | "8008: A permanent cache battery pack failure occurred"}, | |
274 | {0x0444A000, 0, 1, | |
275 | "9090: Disk unit has been modified after the last known status"}, | |
276 | {0x0444A200, 0, 1, | |
277 | "9081: IOA detected device error"}, | |
278 | {0x0444A300, 0, 1, | |
279 | "9082: IOA detected device error"}, | |
280 | {0x044A0000, 1, 1, | |
281 | "3110: Device bus error, message or command phase"}, | |
35a39691 BK |
282 | {0x044A8000, 1, 1, |
283 | "3110: SAS Command / Task Management Function failed"}, | |
1da177e4 LT |
284 | {0x04670400, 0, 1, |
285 | "9091: Incorrect hardware configuration change has been detected"}, | |
b0df54bb | 286 | {0x04678000, 0, 1, |
287 | "9073: Invalid multi-adapter configuration"}, | |
896bbd21 BK |
288 | {0x04678100, 0, 1, |
289 | "4010: Incorrect connection between cascaded expanders"}, | |
290 | {0x04678200, 0, 1, | |
291 | "4020: Connections exceed IOA design limits"}, | |
292 | {0x04678300, 0, 1, | |
293 | "4030: Incorrect multipath connection"}, | |
294 | {0x04679000, 0, 1, | |
295 | "4110: Unsupported enclosure function"}, | |
1da177e4 LT |
296 | {0x046E0000, 0, 1, |
297 | "FFF4: Command to logical unit failed"}, | |
298 | {0x05240000, 1, 0, | |
299 | "Illegal request, invalid request type or request packet"}, | |
300 | {0x05250000, 0, 0, | |
301 | "Illegal request, invalid resource handle"}, | |
b0df54bb | 302 | {0x05258000, 0, 0, |
303 | "Illegal request, commands not allowed to this device"}, | |
304 | {0x05258100, 0, 0, | |
305 | "Illegal request, command not allowed to a secondary adapter"}, | |
1da177e4 LT |
306 | {0x05260000, 0, 0, |
307 | "Illegal request, invalid field in parameter list"}, | |
308 | {0x05260100, 0, 0, | |
309 | "Illegal request, parameter not supported"}, | |
310 | {0x05260200, 0, 0, | |
311 | "Illegal request, parameter value invalid"}, | |
312 | {0x052C0000, 0, 0, | |
313 | "Illegal request, command sequence error"}, | |
b0df54bb | 314 | {0x052C8000, 1, 0, |
315 | "Illegal request, dual adapter support not enabled"}, | |
1da177e4 LT |
316 | {0x06040500, 0, 1, |
317 | "9031: Array protection temporarily suspended, protection resuming"}, | |
318 | {0x06040600, 0, 1, | |
319 | "9040: Array protection temporarily suspended, protection resuming"}, | |
896bbd21 BK |
320 | {0x06288000, 0, 1, |
321 | "3140: Device bus not ready to ready transition"}, | |
1da177e4 LT |
322 | {0x06290000, 0, 1, |
323 | "FFFB: SCSI bus was reset"}, | |
324 | {0x06290500, 0, 0, | |
325 | "FFFE: SCSI bus transition to single ended"}, | |
326 | {0x06290600, 0, 0, | |
327 | "FFFE: SCSI bus transition to LVD"}, | |
328 | {0x06298000, 0, 1, | |
329 | "FFFB: SCSI bus was reset by another initiator"}, | |
330 | {0x063F0300, 0, 1, | |
331 | "3029: A device replacement has occurred"}, | |
332 | {0x064C8000, 0, 1, | |
333 | "9051: IOA cache data exists for a missing or failed device"}, | |
b0df54bb | 334 | {0x064C8100, 0, 1, |
335 | "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"}, | |
1da177e4 LT |
336 | {0x06670100, 0, 1, |
337 | "9025: Disk unit is not supported at its physical location"}, | |
338 | {0x06670600, 0, 1, | |
339 | "3020: IOA detected a SCSI bus configuration error"}, | |
340 | {0x06678000, 0, 1, | |
341 | "3150: SCSI bus configuration error"}, | |
b0df54bb | 342 | {0x06678100, 0, 1, |
343 | "9074: Asymmetric advanced function disk configuration"}, | |
896bbd21 BK |
344 | {0x06678300, 0, 1, |
345 | "4040: Incomplete multipath connection between IOA and enclosure"}, | |
346 | {0x06678400, 0, 1, | |
347 | "4041: Incomplete multipath connection between enclosure and device"}, | |
348 | {0x06678500, 0, 1, | |
349 | "9075: Incomplete multipath connection between IOA and remote IOA"}, | |
350 | {0x06678600, 0, 1, | |
351 | "9076: Configuration error, missing remote IOA"}, | |
352 | {0x06679100, 0, 1, | |
353 | "4050: Enclosure does not support a required multipath function"}, | |
1da177e4 LT |
354 | {0x06690200, 0, 1, |
355 | "9041: Array protection temporarily suspended"}, | |
356 | {0x06698200, 0, 1, | |
357 | "9042: Corrupt array parity detected on specified device"}, | |
358 | {0x066B0200, 0, 1, | |
359 | "9030: Array no longer protected due to missing or failed disk unit"}, | |
b0df54bb | 360 | {0x066B8000, 0, 1, |
361 | "9071: Link operational transition"}, | |
362 | {0x066B8100, 0, 1, | |
363 | "9072: Link not operational transition"}, | |
1da177e4 LT |
364 | {0x066B8200, 0, 1, |
365 | "9032: Array exposed but still protected"}, | |
896bbd21 BK |
366 | {0x066B9100, 0, 1, |
367 | "4061: Multipath redundancy level got better"}, | |
368 | {0x066B9200, 0, 1, | |
369 | "4060: Multipath redundancy level got worse"}, | |
1da177e4 LT |
370 | {0x07270000, 0, 0, |
371 | "Failure due to other device"}, | |
372 | {0x07278000, 0, 1, | |
373 | "9008: IOA does not support functions expected by devices"}, | |
374 | {0x07278100, 0, 1, | |
375 | "9010: Cache data associated with attached devices cannot be found"}, | |
376 | {0x07278200, 0, 1, | |
377 | "9011: Cache data belongs to devices other than those attached"}, | |
378 | {0x07278400, 0, 1, | |
379 | "9020: Array missing 2 or more devices with only 1 device present"}, | |
380 | {0x07278500, 0, 1, | |
381 | "9021: Array missing 2 or more devices with 2 or more devices present"}, | |
382 | {0x07278600, 0, 1, | |
383 | "9022: Exposed array is missing a required device"}, | |
384 | {0x07278700, 0, 1, | |
385 | "9023: Array member(s) not at required physical locations"}, | |
386 | {0x07278800, 0, 1, | |
387 | "9024: Array not functional due to present hardware configuration"}, | |
388 | {0x07278900, 0, 1, | |
389 | "9026: Array not functional due to present hardware configuration"}, | |
390 | {0x07278A00, 0, 1, | |
391 | "9027: Array is missing a device and parity is out of sync"}, | |
392 | {0x07278B00, 0, 1, | |
393 | "9028: Maximum number of arrays already exist"}, | |
394 | {0x07278C00, 0, 1, | |
395 | "9050: Required cache data cannot be located for a disk unit"}, | |
396 | {0x07278D00, 0, 1, | |
397 | "9052: Cache data exists for a device that has been modified"}, | |
398 | {0x07278F00, 0, 1, | |
399 | "9054: IOA resources not available due to previous problems"}, | |
400 | {0x07279100, 0, 1, | |
401 | "9092: Disk unit requires initialization before use"}, | |
402 | {0x07279200, 0, 1, | |
403 | "9029: Incorrect hardware configuration change has been detected"}, | |
404 | {0x07279600, 0, 1, | |
405 | "9060: One or more disk pairs are missing from an array"}, | |
406 | {0x07279700, 0, 1, | |
407 | "9061: One or more disks are missing from an array"}, | |
408 | {0x07279800, 0, 1, | |
409 | "9062: One or more disks are missing from an array"}, | |
410 | {0x07279900, 0, 1, | |
411 | "9063: Maximum number of functional arrays has been exceeded"}, | |
412 | {0x0B260000, 0, 0, | |
413 | "Aborted command, invalid descriptor"}, | |
414 | {0x0B5A0000, 0, 0, | |
415 | "Command terminated by host"} | |
416 | }; | |
417 | ||
418 | static const struct ipr_ses_table_entry ipr_ses_table[] = { | |
419 | { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 }, | |
420 | { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 }, | |
421 | { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */ | |
422 | { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */ | |
423 | { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */ | |
424 | { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */ | |
425 | { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 }, | |
426 | { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 }, | |
427 | { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, | |
428 | { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, | |
429 | { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 }, | |
430 | { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 }, | |
431 | { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 } | |
432 | }; | |
433 | ||
434 | /* | |
435 | * Function Prototypes | |
436 | */ | |
437 | static int ipr_reset_alert(struct ipr_cmnd *); | |
438 | static void ipr_process_ccn(struct ipr_cmnd *); | |
439 | static void ipr_process_error(struct ipr_cmnd *); | |
440 | static void ipr_reset_ioa_job(struct ipr_cmnd *); | |
441 | static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *, | |
442 | enum ipr_shutdown_type); | |
443 | ||
444 | #ifdef CONFIG_SCSI_IPR_TRACE | |
445 | /** | |
446 | * ipr_trc_hook - Add a trace entry to the driver trace | |
447 | * @ipr_cmd: ipr command struct | |
448 | * @type: trace type | |
449 | * @add_data: additional data | |
450 | * | |
451 | * Return value: | |
452 | * none | |
453 | **/ | |
454 | static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd, | |
455 | u8 type, u32 add_data) | |
456 | { | |
457 | struct ipr_trace_entry *trace_entry; | |
458 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
459 | ||
460 | trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++]; | |
461 | trace_entry->time = jiffies; | |
462 | trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0]; | |
463 | trace_entry->type = type; | |
35a39691 BK |
464 | trace_entry->ata_op_code = ipr_cmd->ioarcb.add_data.u.regs.command; |
465 | trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff; | |
1da177e4 LT |
466 | trace_entry->res_handle = ipr_cmd->ioarcb.res_handle; |
467 | trace_entry->u.add_data = add_data; | |
468 | } | |
469 | #else | |
470 | #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0) | |
471 | #endif | |
472 | ||
473 | /** | |
474 | * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse | |
475 | * @ipr_cmd: ipr command struct | |
476 | * | |
477 | * Return value: | |
478 | * none | |
479 | **/ | |
480 | static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd) | |
481 | { | |
482 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
483 | struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; | |
484 | ||
485 | memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); | |
486 | ioarcb->write_data_transfer_length = 0; | |
487 | ioarcb->read_data_transfer_length = 0; | |
488 | ioarcb->write_ioadl_len = 0; | |
489 | ioarcb->read_ioadl_len = 0; | |
490 | ioasa->ioasc = 0; | |
491 | ioasa->residual_data_len = 0; | |
35a39691 | 492 | ioasa->u.gata.status = 0; |
1da177e4 LT |
493 | |
494 | ipr_cmd->scsi_cmd = NULL; | |
35a39691 | 495 | ipr_cmd->qc = NULL; |
1da177e4 LT |
496 | ipr_cmd->sense_buffer[0] = 0; |
497 | ipr_cmd->dma_use_sg = 0; | |
498 | } | |
499 | ||
500 | /** | |
501 | * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block | |
502 | * @ipr_cmd: ipr command struct | |
503 | * | |
504 | * Return value: | |
505 | * none | |
506 | **/ | |
507 | static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd) | |
508 | { | |
509 | ipr_reinit_ipr_cmnd(ipr_cmd); | |
510 | ipr_cmd->u.scratch = 0; | |
511 | ipr_cmd->sibling = NULL; | |
512 | init_timer(&ipr_cmd->timer); | |
513 | } | |
514 | ||
515 | /** | |
516 | * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block | |
517 | * @ioa_cfg: ioa config struct | |
518 | * | |
519 | * Return value: | |
520 | * pointer to ipr command struct | |
521 | **/ | |
522 | static | |
523 | struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg) | |
524 | { | |
525 | struct ipr_cmnd *ipr_cmd; | |
526 | ||
527 | ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue); | |
528 | list_del(&ipr_cmd->queue); | |
529 | ipr_init_ipr_cmnd(ipr_cmd); | |
530 | ||
531 | return ipr_cmd; | |
532 | } | |
533 | ||
534 | /** | |
535 | * ipr_unmap_sglist - Unmap scatterlist if mapped | |
536 | * @ioa_cfg: ioa config struct | |
537 | * @ipr_cmd: ipr command struct | |
538 | * | |
539 | * Return value: | |
540 | * nothing | |
541 | **/ | |
542 | static void ipr_unmap_sglist(struct ipr_ioa_cfg *ioa_cfg, | |
543 | struct ipr_cmnd *ipr_cmd) | |
544 | { | |
545 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
546 | ||
547 | if (ipr_cmd->dma_use_sg) { | |
548 | if (scsi_cmd->use_sg > 0) { | |
549 | pci_unmap_sg(ioa_cfg->pdev, scsi_cmd->request_buffer, | |
550 | scsi_cmd->use_sg, | |
551 | scsi_cmd->sc_data_direction); | |
552 | } else { | |
553 | pci_unmap_single(ioa_cfg->pdev, ipr_cmd->dma_handle, | |
554 | scsi_cmd->request_bufflen, | |
555 | scsi_cmd->sc_data_direction); | |
556 | } | |
557 | } | |
558 | } | |
559 | ||
560 | /** | |
561 | * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts | |
562 | * @ioa_cfg: ioa config struct | |
563 | * @clr_ints: interrupts to clear | |
564 | * | |
565 | * This function masks all interrupts on the adapter, then clears the | |
566 | * interrupts specified in the mask | |
567 | * | |
568 | * Return value: | |
569 | * none | |
570 | **/ | |
571 | static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg, | |
572 | u32 clr_ints) | |
573 | { | |
574 | volatile u32 int_reg; | |
575 | ||
576 | /* Stop new interrupts */ | |
577 | ioa_cfg->allow_interrupts = 0; | |
578 | ||
579 | /* Set interrupt mask to stop all new interrupts */ | |
580 | writel(~0, ioa_cfg->regs.set_interrupt_mask_reg); | |
581 | ||
582 | /* Clear any pending interrupts */ | |
583 | writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg); | |
584 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
585 | } | |
586 | ||
587 | /** | |
588 | * ipr_save_pcix_cmd_reg - Save PCI-X command register | |
589 | * @ioa_cfg: ioa config struct | |
590 | * | |
591 | * Return value: | |
592 | * 0 on success / -EIO on failure | |
593 | **/ | |
594 | static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) | |
595 | { | |
596 | int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); | |
597 | ||
598 | if (pcix_cmd_reg == 0) { | |
599 | dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); | |
600 | return -EIO; | |
601 | } | |
602 | ||
603 | if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, | |
604 | &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { | |
605 | dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); | |
606 | return -EIO; | |
607 | } | |
608 | ||
609 | ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO; | |
610 | return 0; | |
611 | } | |
612 | ||
613 | /** | |
614 | * ipr_set_pcix_cmd_reg - Setup PCI-X command register | |
615 | * @ioa_cfg: ioa config struct | |
616 | * | |
617 | * Return value: | |
618 | * 0 on success / -EIO on failure | |
619 | **/ | |
620 | static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) | |
621 | { | |
622 | int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); | |
623 | ||
624 | if (pcix_cmd_reg) { | |
625 | if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, | |
626 | ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { | |
627 | dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n"); | |
628 | return -EIO; | |
629 | } | |
630 | } else { | |
631 | dev_err(&ioa_cfg->pdev->dev, | |
632 | "Failed to setup PCI-X command register\n"); | |
633 | return -EIO; | |
634 | } | |
635 | ||
636 | return 0; | |
637 | } | |
638 | ||
35a39691 BK |
639 | /** |
640 | * ipr_sata_eh_done - done function for aborted SATA commands | |
641 | * @ipr_cmd: ipr command struct | |
642 | * | |
643 | * This function is invoked for ops generated to SATA | |
644 | * devices which are being aborted. | |
645 | * | |
646 | * Return value: | |
647 | * none | |
648 | **/ | |
649 | static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd) | |
650 | { | |
651 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
652 | struct ata_queued_cmd *qc = ipr_cmd->qc; | |
653 | struct ipr_sata_port *sata_port = qc->ap->private_data; | |
654 | ||
655 | qc->err_mask |= AC_ERR_OTHER; | |
656 | sata_port->ioasa.status |= ATA_BUSY; | |
657 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
658 | ata_qc_complete(qc); | |
659 | } | |
660 | ||
1da177e4 LT |
661 | /** |
662 | * ipr_scsi_eh_done - mid-layer done function for aborted ops | |
663 | * @ipr_cmd: ipr command struct | |
664 | * | |
665 | * This function is invoked by the interrupt handler for | |
666 | * ops generated by the SCSI mid-layer which are being aborted. | |
667 | * | |
668 | * Return value: | |
669 | * none | |
670 | **/ | |
671 | static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) | |
672 | { | |
673 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
674 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
675 | ||
676 | scsi_cmd->result |= (DID_ERROR << 16); | |
677 | ||
678 | ipr_unmap_sglist(ioa_cfg, ipr_cmd); | |
679 | scsi_cmd->scsi_done(scsi_cmd); | |
680 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
681 | } | |
682 | ||
683 | /** | |
684 | * ipr_fail_all_ops - Fails all outstanding ops. | |
685 | * @ioa_cfg: ioa config struct | |
686 | * | |
687 | * This function fails all outstanding ops. | |
688 | * | |
689 | * Return value: | |
690 | * none | |
691 | **/ | |
692 | static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg) | |
693 | { | |
694 | struct ipr_cmnd *ipr_cmd, *temp; | |
695 | ||
696 | ENTER; | |
697 | list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) { | |
698 | list_del(&ipr_cmd->queue); | |
699 | ||
700 | ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET); | |
701 | ipr_cmd->ioasa.ilid = cpu_to_be32(IPR_DRIVER_ILID); | |
702 | ||
703 | if (ipr_cmd->scsi_cmd) | |
704 | ipr_cmd->done = ipr_scsi_eh_done; | |
35a39691 BK |
705 | else if (ipr_cmd->qc) |
706 | ipr_cmd->done = ipr_sata_eh_done; | |
1da177e4 LT |
707 | |
708 | ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET); | |
709 | del_timer(&ipr_cmd->timer); | |
710 | ipr_cmd->done(ipr_cmd); | |
711 | } | |
712 | ||
713 | LEAVE; | |
714 | } | |
715 | ||
716 | /** | |
717 | * ipr_do_req - Send driver initiated requests. | |
718 | * @ipr_cmd: ipr command struct | |
719 | * @done: done function | |
720 | * @timeout_func: timeout function | |
721 | * @timeout: timeout value | |
722 | * | |
723 | * This function sends the specified command to the adapter with the | |
724 | * timeout given. The done function is invoked on command completion. | |
725 | * | |
726 | * Return value: | |
727 | * none | |
728 | **/ | |
729 | static void ipr_do_req(struct ipr_cmnd *ipr_cmd, | |
730 | void (*done) (struct ipr_cmnd *), | |
731 | void (*timeout_func) (struct ipr_cmnd *), u32 timeout) | |
732 | { | |
733 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
734 | ||
735 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
736 | ||
737 | ipr_cmd->done = done; | |
738 | ||
739 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; | |
740 | ipr_cmd->timer.expires = jiffies + timeout; | |
741 | ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func; | |
742 | ||
743 | add_timer(&ipr_cmd->timer); | |
744 | ||
745 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0); | |
746 | ||
747 | mb(); | |
748 | writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), | |
749 | ioa_cfg->regs.ioarrin_reg); | |
750 | } | |
751 | ||
752 | /** | |
753 | * ipr_internal_cmd_done - Op done function for an internally generated op. | |
754 | * @ipr_cmd: ipr command struct | |
755 | * | |
756 | * This function is the op done function for an internally generated, | |
757 | * blocking op. It simply wakes the sleeping thread. | |
758 | * | |
759 | * Return value: | |
760 | * none | |
761 | **/ | |
762 | static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd) | |
763 | { | |
764 | if (ipr_cmd->sibling) | |
765 | ipr_cmd->sibling = NULL; | |
766 | else | |
767 | complete(&ipr_cmd->completion); | |
768 | } | |
769 | ||
770 | /** | |
771 | * ipr_send_blocking_cmd - Send command and sleep on its completion. | |
772 | * @ipr_cmd: ipr command struct | |
773 | * @timeout_func: function to invoke if command times out | |
774 | * @timeout: timeout | |
775 | * | |
776 | * Return value: | |
777 | * none | |
778 | **/ | |
779 | static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd, | |
780 | void (*timeout_func) (struct ipr_cmnd *ipr_cmd), | |
781 | u32 timeout) | |
782 | { | |
783 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
784 | ||
785 | init_completion(&ipr_cmd->completion); | |
786 | ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout); | |
787 | ||
788 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
789 | wait_for_completion(&ipr_cmd->completion); | |
790 | spin_lock_irq(ioa_cfg->host->host_lock); | |
791 | } | |
792 | ||
793 | /** | |
794 | * ipr_send_hcam - Send an HCAM to the adapter. | |
795 | * @ioa_cfg: ioa config struct | |
796 | * @type: HCAM type | |
797 | * @hostrcb: hostrcb struct | |
798 | * | |
799 | * This function will send a Host Controlled Async command to the adapter. | |
800 | * If HCAMs are currently not allowed to be issued to the adapter, it will | |
801 | * place the hostrcb on the free queue. | |
802 | * | |
803 | * Return value: | |
804 | * none | |
805 | **/ | |
806 | static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type, | |
807 | struct ipr_hostrcb *hostrcb) | |
808 | { | |
809 | struct ipr_cmnd *ipr_cmd; | |
810 | struct ipr_ioarcb *ioarcb; | |
811 | ||
812 | if (ioa_cfg->allow_cmds) { | |
813 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
814 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
815 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q); | |
816 | ||
817 | ipr_cmd->u.hostrcb = hostrcb; | |
818 | ioarcb = &ipr_cmd->ioarcb; | |
819 | ||
820 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
821 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM; | |
822 | ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC; | |
823 | ioarcb->cmd_pkt.cdb[1] = type; | |
824 | ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff; | |
825 | ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff; | |
826 | ||
827 | ioarcb->read_data_transfer_length = cpu_to_be32(sizeof(hostrcb->hcam)); | |
828 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
829 | ipr_cmd->ioadl[0].flags_and_data_len = | |
830 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(hostrcb->hcam)); | |
831 | ipr_cmd->ioadl[0].address = cpu_to_be32(hostrcb->hostrcb_dma); | |
832 | ||
833 | if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE) | |
834 | ipr_cmd->done = ipr_process_ccn; | |
835 | else | |
836 | ipr_cmd->done = ipr_process_error; | |
837 | ||
838 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR); | |
839 | ||
840 | mb(); | |
841 | writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), | |
842 | ioa_cfg->regs.ioarrin_reg); | |
843 | } else { | |
844 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); | |
845 | } | |
846 | } | |
847 | ||
848 | /** | |
849 | * ipr_init_res_entry - Initialize a resource entry struct. | |
850 | * @res: resource entry struct | |
851 | * | |
852 | * Return value: | |
853 | * none | |
854 | **/ | |
855 | static void ipr_init_res_entry(struct ipr_resource_entry *res) | |
856 | { | |
ee0a90fa | 857 | res->needs_sync_complete = 0; |
1da177e4 LT |
858 | res->in_erp = 0; |
859 | res->add_to_ml = 0; | |
860 | res->del_from_ml = 0; | |
861 | res->resetting_device = 0; | |
862 | res->sdev = NULL; | |
35a39691 | 863 | res->sata_port = NULL; |
1da177e4 LT |
864 | } |
865 | ||
866 | /** | |
867 | * ipr_handle_config_change - Handle a config change from the adapter | |
868 | * @ioa_cfg: ioa config struct | |
869 | * @hostrcb: hostrcb | |
870 | * | |
871 | * Return value: | |
872 | * none | |
873 | **/ | |
874 | static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg, | |
875 | struct ipr_hostrcb *hostrcb) | |
876 | { | |
877 | struct ipr_resource_entry *res = NULL; | |
878 | struct ipr_config_table_entry *cfgte; | |
879 | u32 is_ndn = 1; | |
880 | ||
881 | cfgte = &hostrcb->hcam.u.ccn.cfgte; | |
882 | ||
883 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
884 | if (!memcmp(&res->cfgte.res_addr, &cfgte->res_addr, | |
885 | sizeof(cfgte->res_addr))) { | |
886 | is_ndn = 0; | |
887 | break; | |
888 | } | |
889 | } | |
890 | ||
891 | if (is_ndn) { | |
892 | if (list_empty(&ioa_cfg->free_res_q)) { | |
893 | ipr_send_hcam(ioa_cfg, | |
894 | IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, | |
895 | hostrcb); | |
896 | return; | |
897 | } | |
898 | ||
899 | res = list_entry(ioa_cfg->free_res_q.next, | |
900 | struct ipr_resource_entry, queue); | |
901 | ||
902 | list_del(&res->queue); | |
903 | ipr_init_res_entry(res); | |
904 | list_add_tail(&res->queue, &ioa_cfg->used_res_q); | |
905 | } | |
906 | ||
907 | memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry)); | |
908 | ||
909 | if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) { | |
910 | if (res->sdev) { | |
1da177e4 | 911 | res->del_from_ml = 1; |
1121b794 | 912 | res->cfgte.res_handle = IPR_INVALID_RES_HANDLE; |
1da177e4 LT |
913 | if (ioa_cfg->allow_ml_add_del) |
914 | schedule_work(&ioa_cfg->work_q); | |
915 | } else | |
916 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); | |
917 | } else if (!res->sdev) { | |
918 | res->add_to_ml = 1; | |
919 | if (ioa_cfg->allow_ml_add_del) | |
920 | schedule_work(&ioa_cfg->work_q); | |
921 | } | |
922 | ||
923 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); | |
924 | } | |
925 | ||
926 | /** | |
927 | * ipr_process_ccn - Op done function for a CCN. | |
928 | * @ipr_cmd: ipr command struct | |
929 | * | |
930 | * This function is the op done function for a configuration | |
931 | * change notification host controlled async from the adapter. | |
932 | * | |
933 | * Return value: | |
934 | * none | |
935 | **/ | |
936 | static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd) | |
937 | { | |
938 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
939 | struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; | |
940 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
941 | ||
942 | list_del(&hostrcb->queue); | |
943 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
944 | ||
945 | if (ioasc) { | |
946 | if (ioasc != IPR_IOASC_IOA_WAS_RESET) | |
947 | dev_err(&ioa_cfg->pdev->dev, | |
948 | "Host RCB failed with IOASC: 0x%08X\n", ioasc); | |
949 | ||
950 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); | |
951 | } else { | |
952 | ipr_handle_config_change(ioa_cfg, hostrcb); | |
953 | } | |
954 | } | |
955 | ||
956 | /** | |
957 | * ipr_log_vpd - Log the passed VPD to the error log. | |
cfc32139 | 958 | * @vpd: vendor/product id/sn struct |
1da177e4 LT |
959 | * |
960 | * Return value: | |
961 | * none | |
962 | **/ | |
cfc32139 | 963 | static void ipr_log_vpd(struct ipr_vpd *vpd) |
1da177e4 LT |
964 | { |
965 | char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN | |
966 | + IPR_SERIAL_NUM_LEN]; | |
967 | ||
cfc32139 | 968 | memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); |
969 | memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id, | |
1da177e4 LT |
970 | IPR_PROD_ID_LEN); |
971 | buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0'; | |
972 | ipr_err("Vendor/Product ID: %s\n", buffer); | |
973 | ||
cfc32139 | 974 | memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN); |
1da177e4 LT |
975 | buffer[IPR_SERIAL_NUM_LEN] = '\0'; |
976 | ipr_err(" Serial Number: %s\n", buffer); | |
977 | } | |
978 | ||
ee0f05b8 | 979 | /** |
980 | * ipr_log_ext_vpd - Log the passed extended VPD to the error log. | |
981 | * @vpd: vendor/product id/sn/wwn struct | |
982 | * | |
983 | * Return value: | |
984 | * none | |
985 | **/ | |
986 | static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd) | |
987 | { | |
988 | ipr_log_vpd(&vpd->vpd); | |
989 | ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]), | |
990 | be32_to_cpu(vpd->wwid[1])); | |
991 | } | |
992 | ||
993 | /** | |
994 | * ipr_log_enhanced_cache_error - Log a cache error. | |
995 | * @ioa_cfg: ioa config struct | |
996 | * @hostrcb: hostrcb struct | |
997 | * | |
998 | * Return value: | |
999 | * none | |
1000 | **/ | |
1001 | static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg, | |
1002 | struct ipr_hostrcb *hostrcb) | |
1003 | { | |
1004 | struct ipr_hostrcb_type_12_error *error = | |
1005 | &hostrcb->hcam.u.error.u.type_12_error; | |
1006 | ||
1007 | ipr_err("-----Current Configuration-----\n"); | |
1008 | ipr_err("Cache Directory Card Information:\n"); | |
1009 | ipr_log_ext_vpd(&error->ioa_vpd); | |
1010 | ipr_err("Adapter Card Information:\n"); | |
1011 | ipr_log_ext_vpd(&error->cfc_vpd); | |
1012 | ||
1013 | ipr_err("-----Expected Configuration-----\n"); | |
1014 | ipr_err("Cache Directory Card Information:\n"); | |
1015 | ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd); | |
1016 | ipr_err("Adapter Card Information:\n"); | |
1017 | ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd); | |
1018 | ||
1019 | ipr_err("Additional IOA Data: %08X %08X %08X\n", | |
1020 | be32_to_cpu(error->ioa_data[0]), | |
1021 | be32_to_cpu(error->ioa_data[1]), | |
1022 | be32_to_cpu(error->ioa_data[2])); | |
1023 | } | |
1024 | ||
1da177e4 LT |
1025 | /** |
1026 | * ipr_log_cache_error - Log a cache error. | |
1027 | * @ioa_cfg: ioa config struct | |
1028 | * @hostrcb: hostrcb struct | |
1029 | * | |
1030 | * Return value: | |
1031 | * none | |
1032 | **/ | |
1033 | static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg, | |
1034 | struct ipr_hostrcb *hostrcb) | |
1035 | { | |
1036 | struct ipr_hostrcb_type_02_error *error = | |
1037 | &hostrcb->hcam.u.error.u.type_02_error; | |
1038 | ||
1039 | ipr_err("-----Current Configuration-----\n"); | |
1040 | ipr_err("Cache Directory Card Information:\n"); | |
cfc32139 | 1041 | ipr_log_vpd(&error->ioa_vpd); |
1da177e4 | 1042 | ipr_err("Adapter Card Information:\n"); |
cfc32139 | 1043 | ipr_log_vpd(&error->cfc_vpd); |
1da177e4 LT |
1044 | |
1045 | ipr_err("-----Expected Configuration-----\n"); | |
1046 | ipr_err("Cache Directory Card Information:\n"); | |
cfc32139 | 1047 | ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd); |
1da177e4 | 1048 | ipr_err("Adapter Card Information:\n"); |
cfc32139 | 1049 | ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd); |
1da177e4 LT |
1050 | |
1051 | ipr_err("Additional IOA Data: %08X %08X %08X\n", | |
1052 | be32_to_cpu(error->ioa_data[0]), | |
1053 | be32_to_cpu(error->ioa_data[1]), | |
1054 | be32_to_cpu(error->ioa_data[2])); | |
1055 | } | |
1056 | ||
ee0f05b8 | 1057 | /** |
1058 | * ipr_log_enhanced_config_error - Log a configuration error. | |
1059 | * @ioa_cfg: ioa config struct | |
1060 | * @hostrcb: hostrcb struct | |
1061 | * | |
1062 | * Return value: | |
1063 | * none | |
1064 | **/ | |
1065 | static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg, | |
1066 | struct ipr_hostrcb *hostrcb) | |
1067 | { | |
1068 | int errors_logged, i; | |
1069 | struct ipr_hostrcb_device_data_entry_enhanced *dev_entry; | |
1070 | struct ipr_hostrcb_type_13_error *error; | |
1071 | ||
1072 | error = &hostrcb->hcam.u.error.u.type_13_error; | |
1073 | errors_logged = be32_to_cpu(error->errors_logged); | |
1074 | ||
1075 | ipr_err("Device Errors Detected/Logged: %d/%d\n", | |
1076 | be32_to_cpu(error->errors_detected), errors_logged); | |
1077 | ||
1078 | dev_entry = error->dev; | |
1079 | ||
1080 | for (i = 0; i < errors_logged; i++, dev_entry++) { | |
1081 | ipr_err_separator; | |
1082 | ||
1083 | ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); | |
1084 | ipr_log_ext_vpd(&dev_entry->vpd); | |
1085 | ||
1086 | ipr_err("-----New Device Information-----\n"); | |
1087 | ipr_log_ext_vpd(&dev_entry->new_vpd); | |
1088 | ||
1089 | ipr_err("Cache Directory Card Information:\n"); | |
1090 | ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); | |
1091 | ||
1092 | ipr_err("Adapter Card Information:\n"); | |
1093 | ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); | |
1094 | } | |
1095 | } | |
1096 | ||
1da177e4 LT |
1097 | /** |
1098 | * ipr_log_config_error - Log a configuration error. | |
1099 | * @ioa_cfg: ioa config struct | |
1100 | * @hostrcb: hostrcb struct | |
1101 | * | |
1102 | * Return value: | |
1103 | * none | |
1104 | **/ | |
1105 | static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg, | |
1106 | struct ipr_hostrcb *hostrcb) | |
1107 | { | |
1108 | int errors_logged, i; | |
1109 | struct ipr_hostrcb_device_data_entry *dev_entry; | |
1110 | struct ipr_hostrcb_type_03_error *error; | |
1111 | ||
1112 | error = &hostrcb->hcam.u.error.u.type_03_error; | |
1113 | errors_logged = be32_to_cpu(error->errors_logged); | |
1114 | ||
1115 | ipr_err("Device Errors Detected/Logged: %d/%d\n", | |
1116 | be32_to_cpu(error->errors_detected), errors_logged); | |
1117 | ||
cfc32139 | 1118 | dev_entry = error->dev; |
1da177e4 LT |
1119 | |
1120 | for (i = 0; i < errors_logged; i++, dev_entry++) { | |
1121 | ipr_err_separator; | |
1122 | ||
fa15b1f6 | 1123 | ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); |
cfc32139 | 1124 | ipr_log_vpd(&dev_entry->vpd); |
1da177e4 LT |
1125 | |
1126 | ipr_err("-----New Device Information-----\n"); | |
cfc32139 | 1127 | ipr_log_vpd(&dev_entry->new_vpd); |
1da177e4 LT |
1128 | |
1129 | ipr_err("Cache Directory Card Information:\n"); | |
cfc32139 | 1130 | ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd); |
1da177e4 LT |
1131 | |
1132 | ipr_err("Adapter Card Information:\n"); | |
cfc32139 | 1133 | ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd); |
1da177e4 LT |
1134 | |
1135 | ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n", | |
1136 | be32_to_cpu(dev_entry->ioa_data[0]), | |
1137 | be32_to_cpu(dev_entry->ioa_data[1]), | |
1138 | be32_to_cpu(dev_entry->ioa_data[2]), | |
1139 | be32_to_cpu(dev_entry->ioa_data[3]), | |
1140 | be32_to_cpu(dev_entry->ioa_data[4])); | |
1141 | } | |
1142 | } | |
1143 | ||
ee0f05b8 | 1144 | /** |
1145 | * ipr_log_enhanced_array_error - Log an array configuration error. | |
1146 | * @ioa_cfg: ioa config struct | |
1147 | * @hostrcb: hostrcb struct | |
1148 | * | |
1149 | * Return value: | |
1150 | * none | |
1151 | **/ | |
1152 | static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg, | |
1153 | struct ipr_hostrcb *hostrcb) | |
1154 | { | |
1155 | int i, num_entries; | |
1156 | struct ipr_hostrcb_type_14_error *error; | |
1157 | struct ipr_hostrcb_array_data_entry_enhanced *array_entry; | |
1158 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; | |
1159 | ||
1160 | error = &hostrcb->hcam.u.error.u.type_14_error; | |
1161 | ||
1162 | ipr_err_separator; | |
1163 | ||
1164 | ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", | |
1165 | error->protection_level, | |
1166 | ioa_cfg->host->host_no, | |
1167 | error->last_func_vset_res_addr.bus, | |
1168 | error->last_func_vset_res_addr.target, | |
1169 | error->last_func_vset_res_addr.lun); | |
1170 | ||
1171 | ipr_err_separator; | |
1172 | ||
1173 | array_entry = error->array_member; | |
1174 | num_entries = min_t(u32, be32_to_cpu(error->num_entries), | |
1175 | sizeof(error->array_member)); | |
1176 | ||
1177 | for (i = 0; i < num_entries; i++, array_entry++) { | |
1178 | if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) | |
1179 | continue; | |
1180 | ||
1181 | if (be32_to_cpu(error->exposed_mode_adn) == i) | |
1182 | ipr_err("Exposed Array Member %d:\n", i); | |
1183 | else | |
1184 | ipr_err("Array Member %d:\n", i); | |
1185 | ||
1186 | ipr_log_ext_vpd(&array_entry->vpd); | |
1187 | ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); | |
1188 | ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, | |
1189 | "Expected Location"); | |
1190 | ||
1191 | ipr_err_separator; | |
1192 | } | |
1193 | } | |
1194 | ||
1da177e4 LT |
1195 | /** |
1196 | * ipr_log_array_error - Log an array configuration error. | |
1197 | * @ioa_cfg: ioa config struct | |
1198 | * @hostrcb: hostrcb struct | |
1199 | * | |
1200 | * Return value: | |
1201 | * none | |
1202 | **/ | |
1203 | static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg, | |
1204 | struct ipr_hostrcb *hostrcb) | |
1205 | { | |
1206 | int i; | |
1207 | struct ipr_hostrcb_type_04_error *error; | |
1208 | struct ipr_hostrcb_array_data_entry *array_entry; | |
1209 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; | |
1210 | ||
1211 | error = &hostrcb->hcam.u.error.u.type_04_error; | |
1212 | ||
1213 | ipr_err_separator; | |
1214 | ||
1215 | ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", | |
1216 | error->protection_level, | |
1217 | ioa_cfg->host->host_no, | |
1218 | error->last_func_vset_res_addr.bus, | |
1219 | error->last_func_vset_res_addr.target, | |
1220 | error->last_func_vset_res_addr.lun); | |
1221 | ||
1222 | ipr_err_separator; | |
1223 | ||
1224 | array_entry = error->array_member; | |
1225 | ||
1226 | for (i = 0; i < 18; i++) { | |
cfc32139 | 1227 | if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) |
1da177e4 LT |
1228 | continue; |
1229 | ||
fa15b1f6 | 1230 | if (be32_to_cpu(error->exposed_mode_adn) == i) |
1da177e4 | 1231 | ipr_err("Exposed Array Member %d:\n", i); |
fa15b1f6 | 1232 | else |
1da177e4 | 1233 | ipr_err("Array Member %d:\n", i); |
1da177e4 | 1234 | |
cfc32139 | 1235 | ipr_log_vpd(&array_entry->vpd); |
1da177e4 | 1236 | |
fa15b1f6 | 1237 | ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); |
1238 | ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, | |
1239 | "Expected Location"); | |
1da177e4 LT |
1240 | |
1241 | ipr_err_separator; | |
1242 | ||
1243 | if (i == 9) | |
1244 | array_entry = error->array_member2; | |
1245 | else | |
1246 | array_entry++; | |
1247 | } | |
1248 | } | |
1249 | ||
1250 | /** | |
b0df54bb | 1251 | * ipr_log_hex_data - Log additional hex IOA error data. |
1252 | * @data: IOA error data | |
1253 | * @len: data length | |
1da177e4 LT |
1254 | * |
1255 | * Return value: | |
1256 | * none | |
1257 | **/ | |
b0df54bb | 1258 | static void ipr_log_hex_data(u32 *data, int len) |
1da177e4 LT |
1259 | { |
1260 | int i; | |
1da177e4 | 1261 | |
b0df54bb | 1262 | if (len == 0) |
1da177e4 LT |
1263 | return; |
1264 | ||
b0df54bb | 1265 | for (i = 0; i < len / 4; i += 4) { |
1da177e4 | 1266 | ipr_err("%08X: %08X %08X %08X %08X\n", i*4, |
b0df54bb | 1267 | be32_to_cpu(data[i]), |
1268 | be32_to_cpu(data[i+1]), | |
1269 | be32_to_cpu(data[i+2]), | |
1270 | be32_to_cpu(data[i+3])); | |
1da177e4 LT |
1271 | } |
1272 | } | |
1273 | ||
ee0f05b8 | 1274 | /** |
1275 | * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error. | |
1276 | * @ioa_cfg: ioa config struct | |
1277 | * @hostrcb: hostrcb struct | |
1278 | * | |
1279 | * Return value: | |
1280 | * none | |
1281 | **/ | |
1282 | static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, | |
1283 | struct ipr_hostrcb *hostrcb) | |
1284 | { | |
1285 | struct ipr_hostrcb_type_17_error *error; | |
1286 | ||
1287 | error = &hostrcb->hcam.u.error.u.type_17_error; | |
1288 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; | |
1289 | ||
1290 | ipr_err("%s\n", error->failure_reason); | |
1291 | ipr_err("Remote Adapter VPD:\n"); | |
1292 | ipr_log_ext_vpd(&error->vpd); | |
1293 | ipr_log_hex_data(error->data, | |
1294 | be32_to_cpu(hostrcb->hcam.length) - | |
1295 | (offsetof(struct ipr_hostrcb_error, u) + | |
1296 | offsetof(struct ipr_hostrcb_type_17_error, data))); | |
1297 | } | |
1298 | ||
b0df54bb | 1299 | /** |
1300 | * ipr_log_dual_ioa_error - Log a dual adapter error. | |
1301 | * @ioa_cfg: ioa config struct | |
1302 | * @hostrcb: hostrcb struct | |
1303 | * | |
1304 | * Return value: | |
1305 | * none | |
1306 | **/ | |
1307 | static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, | |
1308 | struct ipr_hostrcb *hostrcb) | |
1309 | { | |
1310 | struct ipr_hostrcb_type_07_error *error; | |
1311 | ||
1312 | error = &hostrcb->hcam.u.error.u.type_07_error; | |
1313 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; | |
1314 | ||
1315 | ipr_err("%s\n", error->failure_reason); | |
1316 | ipr_err("Remote Adapter VPD:\n"); | |
1317 | ipr_log_vpd(&error->vpd); | |
1318 | ipr_log_hex_data(error->data, | |
1319 | be32_to_cpu(hostrcb->hcam.length) - | |
1320 | (offsetof(struct ipr_hostrcb_error, u) + | |
1321 | offsetof(struct ipr_hostrcb_type_07_error, data))); | |
1322 | } | |
1323 | ||
1324 | /** | |
1325 | * ipr_log_generic_error - Log an adapter error. | |
1326 | * @ioa_cfg: ioa config struct | |
1327 | * @hostrcb: hostrcb struct | |
1328 | * | |
1329 | * Return value: | |
1330 | * none | |
1331 | **/ | |
1332 | static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg, | |
1333 | struct ipr_hostrcb *hostrcb) | |
1334 | { | |
1335 | ipr_log_hex_data(hostrcb->hcam.u.raw.data, | |
1336 | be32_to_cpu(hostrcb->hcam.length)); | |
1337 | } | |
1338 | ||
1da177e4 LT |
1339 | /** |
1340 | * ipr_get_error - Find the specfied IOASC in the ipr_error_table. | |
1341 | * @ioasc: IOASC | |
1342 | * | |
1343 | * This function will return the index of into the ipr_error_table | |
1344 | * for the specified IOASC. If the IOASC is not in the table, | |
1345 | * 0 will be returned, which points to the entry used for unknown errors. | |
1346 | * | |
1347 | * Return value: | |
1348 | * index into the ipr_error_table | |
1349 | **/ | |
1350 | static u32 ipr_get_error(u32 ioasc) | |
1351 | { | |
1352 | int i; | |
1353 | ||
1354 | for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++) | |
35a39691 | 1355 | if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK)) |
1da177e4 LT |
1356 | return i; |
1357 | ||
1358 | return 0; | |
1359 | } | |
1360 | ||
1361 | /** | |
1362 | * ipr_handle_log_data - Log an adapter error. | |
1363 | * @ioa_cfg: ioa config struct | |
1364 | * @hostrcb: hostrcb struct | |
1365 | * | |
1366 | * This function logs an adapter error to the system. | |
1367 | * | |
1368 | * Return value: | |
1369 | * none | |
1370 | **/ | |
1371 | static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg, | |
1372 | struct ipr_hostrcb *hostrcb) | |
1373 | { | |
1374 | u32 ioasc; | |
1375 | int error_index; | |
1376 | ||
1377 | if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY) | |
1378 | return; | |
1379 | ||
1380 | if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST) | |
1381 | dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n"); | |
1382 | ||
1383 | ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc); | |
1384 | ||
1385 | if (ioasc == IPR_IOASC_BUS_WAS_RESET || | |
1386 | ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER) { | |
1387 | /* Tell the midlayer we had a bus reset so it will handle the UA properly */ | |
1388 | scsi_report_bus_reset(ioa_cfg->host, | |
1389 | hostrcb->hcam.u.error.failing_dev_res_addr.bus); | |
1390 | } | |
1391 | ||
1392 | error_index = ipr_get_error(ioasc); | |
1393 | ||
1394 | if (!ipr_error_table[error_index].log_hcam) | |
1395 | return; | |
1396 | ||
1397 | if (ipr_is_device(&hostrcb->hcam.u.error.failing_dev_res_addr)) { | |
fb3ed3cb BK |
1398 | ipr_ra_err(ioa_cfg, hostrcb->hcam.u.error.failing_dev_res_addr, |
1399 | "%s\n", ipr_error_table[error_index].error); | |
1da177e4 LT |
1400 | } else { |
1401 | dev_err(&ioa_cfg->pdev->dev, "%s\n", | |
1402 | ipr_error_table[error_index].error); | |
1403 | } | |
1404 | ||
1405 | /* Set indication we have logged an error */ | |
1406 | ioa_cfg->errors_logged++; | |
1407 | ||
1408 | if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) | |
1409 | return; | |
cf852037 | 1410 | if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw)) |
1411 | hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw)); | |
1da177e4 LT |
1412 | |
1413 | switch (hostrcb->hcam.overlay_id) { | |
1da177e4 LT |
1414 | case IPR_HOST_RCB_OVERLAY_ID_2: |
1415 | ipr_log_cache_error(ioa_cfg, hostrcb); | |
1416 | break; | |
1417 | case IPR_HOST_RCB_OVERLAY_ID_3: | |
1418 | ipr_log_config_error(ioa_cfg, hostrcb); | |
1419 | break; | |
1420 | case IPR_HOST_RCB_OVERLAY_ID_4: | |
1421 | case IPR_HOST_RCB_OVERLAY_ID_6: | |
1422 | ipr_log_array_error(ioa_cfg, hostrcb); | |
1423 | break; | |
b0df54bb | 1424 | case IPR_HOST_RCB_OVERLAY_ID_7: |
1425 | ipr_log_dual_ioa_error(ioa_cfg, hostrcb); | |
1426 | break; | |
ee0f05b8 | 1427 | case IPR_HOST_RCB_OVERLAY_ID_12: |
1428 | ipr_log_enhanced_cache_error(ioa_cfg, hostrcb); | |
1429 | break; | |
1430 | case IPR_HOST_RCB_OVERLAY_ID_13: | |
1431 | ipr_log_enhanced_config_error(ioa_cfg, hostrcb); | |
1432 | break; | |
1433 | case IPR_HOST_RCB_OVERLAY_ID_14: | |
1434 | case IPR_HOST_RCB_OVERLAY_ID_16: | |
1435 | ipr_log_enhanced_array_error(ioa_cfg, hostrcb); | |
1436 | break; | |
1437 | case IPR_HOST_RCB_OVERLAY_ID_17: | |
1438 | ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb); | |
1439 | break; | |
cf852037 | 1440 | case IPR_HOST_RCB_OVERLAY_ID_1: |
1da177e4 | 1441 | case IPR_HOST_RCB_OVERLAY_ID_DEFAULT: |
1da177e4 | 1442 | default: |
a9cfca96 | 1443 | ipr_log_generic_error(ioa_cfg, hostrcb); |
1da177e4 LT |
1444 | break; |
1445 | } | |
1446 | } | |
1447 | ||
1448 | /** | |
1449 | * ipr_process_error - Op done function for an adapter error log. | |
1450 | * @ipr_cmd: ipr command struct | |
1451 | * | |
1452 | * This function is the op done function for an error log host | |
1453 | * controlled async from the adapter. It will log the error and | |
1454 | * send the HCAM back to the adapter. | |
1455 | * | |
1456 | * Return value: | |
1457 | * none | |
1458 | **/ | |
1459 | static void ipr_process_error(struct ipr_cmnd *ipr_cmd) | |
1460 | { | |
1461 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
1462 | struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; | |
1463 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
1464 | ||
1465 | list_del(&hostrcb->queue); | |
1466 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
1467 | ||
1468 | if (!ioasc) { | |
1469 | ipr_handle_log_data(ioa_cfg, hostrcb); | |
1470 | } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) { | |
1471 | dev_err(&ioa_cfg->pdev->dev, | |
1472 | "Host RCB failed with IOASC: 0x%08X\n", ioasc); | |
1473 | } | |
1474 | ||
1475 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); | |
1476 | } | |
1477 | ||
1478 | /** | |
1479 | * ipr_timeout - An internally generated op has timed out. | |
1480 | * @ipr_cmd: ipr command struct | |
1481 | * | |
1482 | * This function blocks host requests and initiates an | |
1483 | * adapter reset. | |
1484 | * | |
1485 | * Return value: | |
1486 | * none | |
1487 | **/ | |
1488 | static void ipr_timeout(struct ipr_cmnd *ipr_cmd) | |
1489 | { | |
1490 | unsigned long lock_flags = 0; | |
1491 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
1492 | ||
1493 | ENTER; | |
1494 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1495 | ||
1496 | ioa_cfg->errors_logged++; | |
1497 | dev_err(&ioa_cfg->pdev->dev, | |
1498 | "Adapter being reset due to command timeout.\n"); | |
1499 | ||
1500 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
1501 | ioa_cfg->sdt_state = GET_DUMP; | |
1502 | ||
1503 | if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) | |
1504 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
1505 | ||
1506 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1507 | LEAVE; | |
1508 | } | |
1509 | ||
1510 | /** | |
1511 | * ipr_oper_timeout - Adapter timed out transitioning to operational | |
1512 | * @ipr_cmd: ipr command struct | |
1513 | * | |
1514 | * This function blocks host requests and initiates an | |
1515 | * adapter reset. | |
1516 | * | |
1517 | * Return value: | |
1518 | * none | |
1519 | **/ | |
1520 | static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd) | |
1521 | { | |
1522 | unsigned long lock_flags = 0; | |
1523 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
1524 | ||
1525 | ENTER; | |
1526 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1527 | ||
1528 | ioa_cfg->errors_logged++; | |
1529 | dev_err(&ioa_cfg->pdev->dev, | |
1530 | "Adapter timed out transitioning to operational.\n"); | |
1531 | ||
1532 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
1533 | ioa_cfg->sdt_state = GET_DUMP; | |
1534 | ||
1535 | if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) { | |
1536 | if (ipr_fastfail) | |
1537 | ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; | |
1538 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
1539 | } | |
1540 | ||
1541 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1542 | LEAVE; | |
1543 | } | |
1544 | ||
1545 | /** | |
1546 | * ipr_reset_reload - Reset/Reload the IOA | |
1547 | * @ioa_cfg: ioa config struct | |
1548 | * @shutdown_type: shutdown type | |
1549 | * | |
1550 | * This function resets the adapter and re-initializes it. | |
1551 | * This function assumes that all new host commands have been stopped. | |
1552 | * Return value: | |
1553 | * SUCCESS / FAILED | |
1554 | **/ | |
1555 | static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg, | |
1556 | enum ipr_shutdown_type shutdown_type) | |
1557 | { | |
1558 | if (!ioa_cfg->in_reset_reload) | |
1559 | ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); | |
1560 | ||
1561 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
1562 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
1563 | spin_lock_irq(ioa_cfg->host->host_lock); | |
1564 | ||
1565 | /* If we got hit with a host reset while we were already resetting | |
1566 | the adapter for some reason, and the reset failed. */ | |
1567 | if (ioa_cfg->ioa_is_dead) { | |
1568 | ipr_trace; | |
1569 | return FAILED; | |
1570 | } | |
1571 | ||
1572 | return SUCCESS; | |
1573 | } | |
1574 | ||
1575 | /** | |
1576 | * ipr_find_ses_entry - Find matching SES in SES table | |
1577 | * @res: resource entry struct of SES | |
1578 | * | |
1579 | * Return value: | |
1580 | * pointer to SES table entry / NULL on failure | |
1581 | **/ | |
1582 | static const struct ipr_ses_table_entry * | |
1583 | ipr_find_ses_entry(struct ipr_resource_entry *res) | |
1584 | { | |
1585 | int i, j, matches; | |
1586 | const struct ipr_ses_table_entry *ste = ipr_ses_table; | |
1587 | ||
1588 | for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) { | |
1589 | for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) { | |
1590 | if (ste->compare_product_id_byte[j] == 'X') { | |
1591 | if (res->cfgte.std_inq_data.vpids.product_id[j] == ste->product_id[j]) | |
1592 | matches++; | |
1593 | else | |
1594 | break; | |
1595 | } else | |
1596 | matches++; | |
1597 | } | |
1598 | ||
1599 | if (matches == IPR_PROD_ID_LEN) | |
1600 | return ste; | |
1601 | } | |
1602 | ||
1603 | return NULL; | |
1604 | } | |
1605 | ||
1606 | /** | |
1607 | * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus | |
1608 | * @ioa_cfg: ioa config struct | |
1609 | * @bus: SCSI bus | |
1610 | * @bus_width: bus width | |
1611 | * | |
1612 | * Return value: | |
1613 | * SCSI bus speed in units of 100KHz, 1600 is 160 MHz | |
1614 | * For a 2-byte wide SCSI bus, the maximum transfer speed is | |
1615 | * twice the maximum transfer rate (e.g. for a wide enabled bus, | |
1616 | * max 160MHz = max 320MB/sec). | |
1617 | **/ | |
1618 | static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width) | |
1619 | { | |
1620 | struct ipr_resource_entry *res; | |
1621 | const struct ipr_ses_table_entry *ste; | |
1622 | u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width); | |
1623 | ||
1624 | /* Loop through each config table entry in the config table buffer */ | |
1625 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
1626 | if (!(IPR_IS_SES_DEVICE(res->cfgte.std_inq_data))) | |
1627 | continue; | |
1628 | ||
1629 | if (bus != res->cfgte.res_addr.bus) | |
1630 | continue; | |
1631 | ||
1632 | if (!(ste = ipr_find_ses_entry(res))) | |
1633 | continue; | |
1634 | ||
1635 | max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8); | |
1636 | } | |
1637 | ||
1638 | return max_xfer_rate; | |
1639 | } | |
1640 | ||
1641 | /** | |
1642 | * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA | |
1643 | * @ioa_cfg: ioa config struct | |
1644 | * @max_delay: max delay in micro-seconds to wait | |
1645 | * | |
1646 | * Waits for an IODEBUG ACK from the IOA, doing busy looping. | |
1647 | * | |
1648 | * Return value: | |
1649 | * 0 on success / other on failure | |
1650 | **/ | |
1651 | static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay) | |
1652 | { | |
1653 | volatile u32 pcii_reg; | |
1654 | int delay = 1; | |
1655 | ||
1656 | /* Read interrupt reg until IOA signals IO Debug Acknowledge */ | |
1657 | while (delay < max_delay) { | |
1658 | pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
1659 | ||
1660 | if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE) | |
1661 | return 0; | |
1662 | ||
1663 | /* udelay cannot be used if delay is more than a few milliseconds */ | |
1664 | if ((delay / 1000) > MAX_UDELAY_MS) | |
1665 | mdelay(delay / 1000); | |
1666 | else | |
1667 | udelay(delay); | |
1668 | ||
1669 | delay += delay; | |
1670 | } | |
1671 | return -EIO; | |
1672 | } | |
1673 | ||
1674 | /** | |
1675 | * ipr_get_ldump_data_section - Dump IOA memory | |
1676 | * @ioa_cfg: ioa config struct | |
1677 | * @start_addr: adapter address to dump | |
1678 | * @dest: destination kernel buffer | |
1679 | * @length_in_words: length to dump in 4 byte words | |
1680 | * | |
1681 | * Return value: | |
1682 | * 0 on success / -EIO on failure | |
1683 | **/ | |
1684 | static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg, | |
1685 | u32 start_addr, | |
1686 | __be32 *dest, u32 length_in_words) | |
1687 | { | |
1688 | volatile u32 temp_pcii_reg; | |
1689 | int i, delay = 0; | |
1690 | ||
1691 | /* Write IOA interrupt reg starting LDUMP state */ | |
1692 | writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT), | |
1693 | ioa_cfg->regs.set_uproc_interrupt_reg); | |
1694 | ||
1695 | /* Wait for IO debug acknowledge */ | |
1696 | if (ipr_wait_iodbg_ack(ioa_cfg, | |
1697 | IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) { | |
1698 | dev_err(&ioa_cfg->pdev->dev, | |
1699 | "IOA dump long data transfer timeout\n"); | |
1700 | return -EIO; | |
1701 | } | |
1702 | ||
1703 | /* Signal LDUMP interlocked - clear IO debug ack */ | |
1704 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, | |
1705 | ioa_cfg->regs.clr_interrupt_reg); | |
1706 | ||
1707 | /* Write Mailbox with starting address */ | |
1708 | writel(start_addr, ioa_cfg->ioa_mailbox); | |
1709 | ||
1710 | /* Signal address valid - clear IOA Reset alert */ | |
1711 | writel(IPR_UPROCI_RESET_ALERT, | |
1712 | ioa_cfg->regs.clr_uproc_interrupt_reg); | |
1713 | ||
1714 | for (i = 0; i < length_in_words; i++) { | |
1715 | /* Wait for IO debug acknowledge */ | |
1716 | if (ipr_wait_iodbg_ack(ioa_cfg, | |
1717 | IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) { | |
1718 | dev_err(&ioa_cfg->pdev->dev, | |
1719 | "IOA dump short data transfer timeout\n"); | |
1720 | return -EIO; | |
1721 | } | |
1722 | ||
1723 | /* Read data from mailbox and increment destination pointer */ | |
1724 | *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox)); | |
1725 | dest++; | |
1726 | ||
1727 | /* For all but the last word of data, signal data received */ | |
1728 | if (i < (length_in_words - 1)) { | |
1729 | /* Signal dump data received - Clear IO debug Ack */ | |
1730 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, | |
1731 | ioa_cfg->regs.clr_interrupt_reg); | |
1732 | } | |
1733 | } | |
1734 | ||
1735 | /* Signal end of block transfer. Set reset alert then clear IO debug ack */ | |
1736 | writel(IPR_UPROCI_RESET_ALERT, | |
1737 | ioa_cfg->regs.set_uproc_interrupt_reg); | |
1738 | ||
1739 | writel(IPR_UPROCI_IO_DEBUG_ALERT, | |
1740 | ioa_cfg->regs.clr_uproc_interrupt_reg); | |
1741 | ||
1742 | /* Signal dump data received - Clear IO debug Ack */ | |
1743 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, | |
1744 | ioa_cfg->regs.clr_interrupt_reg); | |
1745 | ||
1746 | /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */ | |
1747 | while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) { | |
1748 | temp_pcii_reg = | |
1749 | readl(ioa_cfg->regs.sense_uproc_interrupt_reg); | |
1750 | ||
1751 | if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT)) | |
1752 | return 0; | |
1753 | ||
1754 | udelay(10); | |
1755 | delay += 10; | |
1756 | } | |
1757 | ||
1758 | return 0; | |
1759 | } | |
1760 | ||
1761 | #ifdef CONFIG_SCSI_IPR_DUMP | |
1762 | /** | |
1763 | * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer | |
1764 | * @ioa_cfg: ioa config struct | |
1765 | * @pci_address: adapter address | |
1766 | * @length: length of data to copy | |
1767 | * | |
1768 | * Copy data from PCI adapter to kernel buffer. | |
1769 | * Note: length MUST be a 4 byte multiple | |
1770 | * Return value: | |
1771 | * 0 on success / other on failure | |
1772 | **/ | |
1773 | static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg, | |
1774 | unsigned long pci_address, u32 length) | |
1775 | { | |
1776 | int bytes_copied = 0; | |
1777 | int cur_len, rc, rem_len, rem_page_len; | |
1778 | __be32 *page; | |
1779 | unsigned long lock_flags = 0; | |
1780 | struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump; | |
1781 | ||
1782 | while (bytes_copied < length && | |
1783 | (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) { | |
1784 | if (ioa_dump->page_offset >= PAGE_SIZE || | |
1785 | ioa_dump->page_offset == 0) { | |
1786 | page = (__be32 *)__get_free_page(GFP_ATOMIC); | |
1787 | ||
1788 | if (!page) { | |
1789 | ipr_trace; | |
1790 | return bytes_copied; | |
1791 | } | |
1792 | ||
1793 | ioa_dump->page_offset = 0; | |
1794 | ioa_dump->ioa_data[ioa_dump->next_page_index] = page; | |
1795 | ioa_dump->next_page_index++; | |
1796 | } else | |
1797 | page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1]; | |
1798 | ||
1799 | rem_len = length - bytes_copied; | |
1800 | rem_page_len = PAGE_SIZE - ioa_dump->page_offset; | |
1801 | cur_len = min(rem_len, rem_page_len); | |
1802 | ||
1803 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1804 | if (ioa_cfg->sdt_state == ABORT_DUMP) { | |
1805 | rc = -EIO; | |
1806 | } else { | |
1807 | rc = ipr_get_ldump_data_section(ioa_cfg, | |
1808 | pci_address + bytes_copied, | |
1809 | &page[ioa_dump->page_offset / 4], | |
1810 | (cur_len / sizeof(u32))); | |
1811 | } | |
1812 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1813 | ||
1814 | if (!rc) { | |
1815 | ioa_dump->page_offset += cur_len; | |
1816 | bytes_copied += cur_len; | |
1817 | } else { | |
1818 | ipr_trace; | |
1819 | break; | |
1820 | } | |
1821 | schedule(); | |
1822 | } | |
1823 | ||
1824 | return bytes_copied; | |
1825 | } | |
1826 | ||
1827 | /** | |
1828 | * ipr_init_dump_entry_hdr - Initialize a dump entry header. | |
1829 | * @hdr: dump entry header struct | |
1830 | * | |
1831 | * Return value: | |
1832 | * nothing | |
1833 | **/ | |
1834 | static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr) | |
1835 | { | |
1836 | hdr->eye_catcher = IPR_DUMP_EYE_CATCHER; | |
1837 | hdr->num_elems = 1; | |
1838 | hdr->offset = sizeof(*hdr); | |
1839 | hdr->status = IPR_DUMP_STATUS_SUCCESS; | |
1840 | } | |
1841 | ||
1842 | /** | |
1843 | * ipr_dump_ioa_type_data - Fill in the adapter type in the dump. | |
1844 | * @ioa_cfg: ioa config struct | |
1845 | * @driver_dump: driver dump struct | |
1846 | * | |
1847 | * Return value: | |
1848 | * nothing | |
1849 | **/ | |
1850 | static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg, | |
1851 | struct ipr_driver_dump *driver_dump) | |
1852 | { | |
1853 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; | |
1854 | ||
1855 | ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr); | |
1856 | driver_dump->ioa_type_entry.hdr.len = | |
1857 | sizeof(struct ipr_dump_ioa_type_entry) - | |
1858 | sizeof(struct ipr_dump_entry_header); | |
1859 | driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; | |
1860 | driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID; | |
1861 | driver_dump->ioa_type_entry.type = ioa_cfg->type; | |
1862 | driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) | | |
1863 | (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) | | |
1864 | ucode_vpd->minor_release[1]; | |
1865 | driver_dump->hdr.num_entries++; | |
1866 | } | |
1867 | ||
1868 | /** | |
1869 | * ipr_dump_version_data - Fill in the driver version in the dump. | |
1870 | * @ioa_cfg: ioa config struct | |
1871 | * @driver_dump: driver dump struct | |
1872 | * | |
1873 | * Return value: | |
1874 | * nothing | |
1875 | **/ | |
1876 | static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg, | |
1877 | struct ipr_driver_dump *driver_dump) | |
1878 | { | |
1879 | ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr); | |
1880 | driver_dump->version_entry.hdr.len = | |
1881 | sizeof(struct ipr_dump_version_entry) - | |
1882 | sizeof(struct ipr_dump_entry_header); | |
1883 | driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; | |
1884 | driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID; | |
1885 | strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION); | |
1886 | driver_dump->hdr.num_entries++; | |
1887 | } | |
1888 | ||
1889 | /** | |
1890 | * ipr_dump_trace_data - Fill in the IOA trace in the dump. | |
1891 | * @ioa_cfg: ioa config struct | |
1892 | * @driver_dump: driver dump struct | |
1893 | * | |
1894 | * Return value: | |
1895 | * nothing | |
1896 | **/ | |
1897 | static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg, | |
1898 | struct ipr_driver_dump *driver_dump) | |
1899 | { | |
1900 | ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr); | |
1901 | driver_dump->trace_entry.hdr.len = | |
1902 | sizeof(struct ipr_dump_trace_entry) - | |
1903 | sizeof(struct ipr_dump_entry_header); | |
1904 | driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; | |
1905 | driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID; | |
1906 | memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE); | |
1907 | driver_dump->hdr.num_entries++; | |
1908 | } | |
1909 | ||
1910 | /** | |
1911 | * ipr_dump_location_data - Fill in the IOA location in the dump. | |
1912 | * @ioa_cfg: ioa config struct | |
1913 | * @driver_dump: driver dump struct | |
1914 | * | |
1915 | * Return value: | |
1916 | * nothing | |
1917 | **/ | |
1918 | static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg, | |
1919 | struct ipr_driver_dump *driver_dump) | |
1920 | { | |
1921 | ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr); | |
1922 | driver_dump->location_entry.hdr.len = | |
1923 | sizeof(struct ipr_dump_location_entry) - | |
1924 | sizeof(struct ipr_dump_entry_header); | |
1925 | driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; | |
1926 | driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID; | |
1927 | strcpy(driver_dump->location_entry.location, ioa_cfg->pdev->dev.bus_id); | |
1928 | driver_dump->hdr.num_entries++; | |
1929 | } | |
1930 | ||
1931 | /** | |
1932 | * ipr_get_ioa_dump - Perform a dump of the driver and adapter. | |
1933 | * @ioa_cfg: ioa config struct | |
1934 | * @dump: dump struct | |
1935 | * | |
1936 | * Return value: | |
1937 | * nothing | |
1938 | **/ | |
1939 | static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump) | |
1940 | { | |
1941 | unsigned long start_addr, sdt_word; | |
1942 | unsigned long lock_flags = 0; | |
1943 | struct ipr_driver_dump *driver_dump = &dump->driver_dump; | |
1944 | struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump; | |
1945 | u32 num_entries, start_off, end_off; | |
1946 | u32 bytes_to_copy, bytes_copied, rc; | |
1947 | struct ipr_sdt *sdt; | |
1948 | int i; | |
1949 | ||
1950 | ENTER; | |
1951 | ||
1952 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1953 | ||
1954 | if (ioa_cfg->sdt_state != GET_DUMP) { | |
1955 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1956 | return; | |
1957 | } | |
1958 | ||
1959 | start_addr = readl(ioa_cfg->ioa_mailbox); | |
1960 | ||
1961 | if (!ipr_sdt_is_fmt2(start_addr)) { | |
1962 | dev_err(&ioa_cfg->pdev->dev, | |
1963 | "Invalid dump table format: %lx\n", start_addr); | |
1964 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1965 | return; | |
1966 | } | |
1967 | ||
1968 | dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n"); | |
1969 | ||
1970 | driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER; | |
1971 | ||
1972 | /* Initialize the overall dump header */ | |
1973 | driver_dump->hdr.len = sizeof(struct ipr_driver_dump); | |
1974 | driver_dump->hdr.num_entries = 1; | |
1975 | driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header); | |
1976 | driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS; | |
1977 | driver_dump->hdr.os = IPR_DUMP_OS_LINUX; | |
1978 | driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME; | |
1979 | ||
1980 | ipr_dump_version_data(ioa_cfg, driver_dump); | |
1981 | ipr_dump_location_data(ioa_cfg, driver_dump); | |
1982 | ipr_dump_ioa_type_data(ioa_cfg, driver_dump); | |
1983 | ipr_dump_trace_data(ioa_cfg, driver_dump); | |
1984 | ||
1985 | /* Update dump_header */ | |
1986 | driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header); | |
1987 | ||
1988 | /* IOA Dump entry */ | |
1989 | ipr_init_dump_entry_hdr(&ioa_dump->hdr); | |
1990 | ioa_dump->format = IPR_SDT_FMT2; | |
1991 | ioa_dump->hdr.len = 0; | |
1992 | ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; | |
1993 | ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID; | |
1994 | ||
1995 | /* First entries in sdt are actually a list of dump addresses and | |
1996 | lengths to gather the real dump data. sdt represents the pointer | |
1997 | to the ioa generated dump table. Dump data will be extracted based | |
1998 | on entries in this table */ | |
1999 | sdt = &ioa_dump->sdt; | |
2000 | ||
2001 | rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt, | |
2002 | sizeof(struct ipr_sdt) / sizeof(__be32)); | |
2003 | ||
2004 | /* Smart Dump table is ready to use and the first entry is valid */ | |
2005 | if (rc || (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE)) { | |
2006 | dev_err(&ioa_cfg->pdev->dev, | |
2007 | "Dump of IOA failed. Dump table not valid: %d, %X.\n", | |
2008 | rc, be32_to_cpu(sdt->hdr.state)); | |
2009 | driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED; | |
2010 | ioa_cfg->sdt_state = DUMP_OBTAINED; | |
2011 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2012 | return; | |
2013 | } | |
2014 | ||
2015 | num_entries = be32_to_cpu(sdt->hdr.num_entries_used); | |
2016 | ||
2017 | if (num_entries > IPR_NUM_SDT_ENTRIES) | |
2018 | num_entries = IPR_NUM_SDT_ENTRIES; | |
2019 | ||
2020 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2021 | ||
2022 | for (i = 0; i < num_entries; i++) { | |
2023 | if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) { | |
2024 | driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; | |
2025 | break; | |
2026 | } | |
2027 | ||
2028 | if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) { | |
2029 | sdt_word = be32_to_cpu(sdt->entry[i].bar_str_offset); | |
2030 | start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK; | |
2031 | end_off = be32_to_cpu(sdt->entry[i].end_offset); | |
2032 | ||
2033 | if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) { | |
2034 | bytes_to_copy = end_off - start_off; | |
2035 | if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) { | |
2036 | sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY; | |
2037 | continue; | |
2038 | } | |
2039 | ||
2040 | /* Copy data from adapter to driver buffers */ | |
2041 | bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word, | |
2042 | bytes_to_copy); | |
2043 | ||
2044 | ioa_dump->hdr.len += bytes_copied; | |
2045 | ||
2046 | if (bytes_copied != bytes_to_copy) { | |
2047 | driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; | |
2048 | break; | |
2049 | } | |
2050 | } | |
2051 | } | |
2052 | } | |
2053 | ||
2054 | dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n"); | |
2055 | ||
2056 | /* Update dump_header */ | |
2057 | driver_dump->hdr.len += ioa_dump->hdr.len; | |
2058 | wmb(); | |
2059 | ioa_cfg->sdt_state = DUMP_OBTAINED; | |
2060 | LEAVE; | |
2061 | } | |
2062 | ||
2063 | #else | |
2064 | #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0) | |
2065 | #endif | |
2066 | ||
2067 | /** | |
2068 | * ipr_release_dump - Free adapter dump memory | |
2069 | * @kref: kref struct | |
2070 | * | |
2071 | * Return value: | |
2072 | * nothing | |
2073 | **/ | |
2074 | static void ipr_release_dump(struct kref *kref) | |
2075 | { | |
2076 | struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref); | |
2077 | struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg; | |
2078 | unsigned long lock_flags = 0; | |
2079 | int i; | |
2080 | ||
2081 | ENTER; | |
2082 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2083 | ioa_cfg->dump = NULL; | |
2084 | ioa_cfg->sdt_state = INACTIVE; | |
2085 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2086 | ||
2087 | for (i = 0; i < dump->ioa_dump.next_page_index; i++) | |
2088 | free_page((unsigned long) dump->ioa_dump.ioa_data[i]); | |
2089 | ||
2090 | kfree(dump); | |
2091 | LEAVE; | |
2092 | } | |
2093 | ||
2094 | /** | |
2095 | * ipr_worker_thread - Worker thread | |
2096 | * @data: ioa config struct | |
2097 | * | |
2098 | * Called at task level from a work thread. This function takes care | |
2099 | * of adding and removing device from the mid-layer as configuration | |
2100 | * changes are detected by the adapter. | |
2101 | * | |
2102 | * Return value: | |
2103 | * nothing | |
2104 | **/ | |
2105 | static void ipr_worker_thread(void *data) | |
2106 | { | |
2107 | unsigned long lock_flags; | |
2108 | struct ipr_resource_entry *res; | |
2109 | struct scsi_device *sdev; | |
2110 | struct ipr_dump *dump; | |
2111 | struct ipr_ioa_cfg *ioa_cfg = data; | |
2112 | u8 bus, target, lun; | |
2113 | int did_work; | |
2114 | ||
2115 | ENTER; | |
2116 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2117 | ||
2118 | if (ioa_cfg->sdt_state == GET_DUMP) { | |
2119 | dump = ioa_cfg->dump; | |
2120 | if (!dump) { | |
2121 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2122 | return; | |
2123 | } | |
2124 | kref_get(&dump->kref); | |
2125 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2126 | ipr_get_ioa_dump(ioa_cfg, dump); | |
2127 | kref_put(&dump->kref, ipr_release_dump); | |
2128 | ||
2129 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2130 | if (ioa_cfg->sdt_state == DUMP_OBTAINED) | |
2131 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
2132 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2133 | return; | |
2134 | } | |
2135 | ||
2136 | restart: | |
2137 | do { | |
2138 | did_work = 0; | |
2139 | if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) { | |
2140 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2141 | return; | |
2142 | } | |
2143 | ||
2144 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
2145 | if (res->del_from_ml && res->sdev) { | |
2146 | did_work = 1; | |
2147 | sdev = res->sdev; | |
2148 | if (!scsi_device_get(sdev)) { | |
1da177e4 LT |
2149 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); |
2150 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2151 | scsi_remove_device(sdev); | |
2152 | scsi_device_put(sdev); | |
2153 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2154 | } | |
2155 | break; | |
2156 | } | |
2157 | } | |
2158 | } while(did_work); | |
2159 | ||
2160 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
2161 | if (res->add_to_ml) { | |
2162 | bus = res->cfgte.res_addr.bus; | |
2163 | target = res->cfgte.res_addr.target; | |
2164 | lun = res->cfgte.res_addr.lun; | |
1121b794 | 2165 | res->add_to_ml = 0; |
1da177e4 LT |
2166 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
2167 | scsi_add_device(ioa_cfg->host, bus, target, lun); | |
2168 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2169 | goto restart; | |
2170 | } | |
2171 | } | |
2172 | ||
2173 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
312c004d | 2174 | kobject_uevent(&ioa_cfg->host->shost_classdev.kobj, KOBJ_CHANGE); |
1da177e4 LT |
2175 | LEAVE; |
2176 | } | |
2177 | ||
2178 | #ifdef CONFIG_SCSI_IPR_TRACE | |
2179 | /** | |
2180 | * ipr_read_trace - Dump the adapter trace | |
2181 | * @kobj: kobject struct | |
2182 | * @buf: buffer | |
2183 | * @off: offset | |
2184 | * @count: buffer size | |
2185 | * | |
2186 | * Return value: | |
2187 | * number of bytes printed to buffer | |
2188 | **/ | |
2189 | static ssize_t ipr_read_trace(struct kobject *kobj, char *buf, | |
2190 | loff_t off, size_t count) | |
2191 | { | |
2192 | struct class_device *cdev = container_of(kobj,struct class_device,kobj); | |
2193 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2194 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2195 | unsigned long lock_flags = 0; | |
2196 | int size = IPR_TRACE_SIZE; | |
2197 | char *src = (char *)ioa_cfg->trace; | |
2198 | ||
2199 | if (off > size) | |
2200 | return 0; | |
2201 | if (off + count > size) { | |
2202 | size -= off; | |
2203 | count = size; | |
2204 | } | |
2205 | ||
2206 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2207 | memcpy(buf, &src[off], count); | |
2208 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2209 | return count; | |
2210 | } | |
2211 | ||
2212 | static struct bin_attribute ipr_trace_attr = { | |
2213 | .attr = { | |
2214 | .name = "trace", | |
2215 | .mode = S_IRUGO, | |
2216 | }, | |
2217 | .size = 0, | |
2218 | .read = ipr_read_trace, | |
2219 | }; | |
2220 | #endif | |
2221 | ||
62275040 | 2222 | static const struct { |
2223 | enum ipr_cache_state state; | |
2224 | char *name; | |
2225 | } cache_state [] = { | |
2226 | { CACHE_NONE, "none" }, | |
2227 | { CACHE_DISABLED, "disabled" }, | |
2228 | { CACHE_ENABLED, "enabled" } | |
2229 | }; | |
2230 | ||
2231 | /** | |
2232 | * ipr_show_write_caching - Show the write caching attribute | |
2233 | * @class_dev: class device struct | |
2234 | * @buf: buffer | |
2235 | * | |
2236 | * Return value: | |
2237 | * number of bytes printed to buffer | |
2238 | **/ | |
2239 | static ssize_t ipr_show_write_caching(struct class_device *class_dev, char *buf) | |
2240 | { | |
2241 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2242 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2243 | unsigned long lock_flags = 0; | |
2244 | int i, len = 0; | |
2245 | ||
2246 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2247 | for (i = 0; i < ARRAY_SIZE(cache_state); i++) { | |
2248 | if (cache_state[i].state == ioa_cfg->cache_state) { | |
2249 | len = snprintf(buf, PAGE_SIZE, "%s\n", cache_state[i].name); | |
2250 | break; | |
2251 | } | |
2252 | } | |
2253 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2254 | return len; | |
2255 | } | |
2256 | ||
2257 | ||
2258 | /** | |
2259 | * ipr_store_write_caching - Enable/disable adapter write cache | |
2260 | * @class_dev: class_device struct | |
2261 | * @buf: buffer | |
2262 | * @count: buffer size | |
2263 | * | |
2264 | * This function will enable/disable adapter write cache. | |
2265 | * | |
2266 | * Return value: | |
2267 | * count on success / other on failure | |
2268 | **/ | |
2269 | static ssize_t ipr_store_write_caching(struct class_device *class_dev, | |
2270 | const char *buf, size_t count) | |
2271 | { | |
2272 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2273 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2274 | unsigned long lock_flags = 0; | |
2275 | enum ipr_cache_state new_state = CACHE_INVALID; | |
2276 | int i; | |
2277 | ||
2278 | if (!capable(CAP_SYS_ADMIN)) | |
2279 | return -EACCES; | |
2280 | if (ioa_cfg->cache_state == CACHE_NONE) | |
2281 | return -EINVAL; | |
2282 | ||
2283 | for (i = 0; i < ARRAY_SIZE(cache_state); i++) { | |
2284 | if (!strncmp(cache_state[i].name, buf, strlen(cache_state[i].name))) { | |
2285 | new_state = cache_state[i].state; | |
2286 | break; | |
2287 | } | |
2288 | } | |
2289 | ||
2290 | if (new_state != CACHE_DISABLED && new_state != CACHE_ENABLED) | |
2291 | return -EINVAL; | |
2292 | ||
2293 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2294 | if (ioa_cfg->cache_state == new_state) { | |
2295 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2296 | return count; | |
2297 | } | |
2298 | ||
2299 | ioa_cfg->cache_state = new_state; | |
2300 | dev_info(&ioa_cfg->pdev->dev, "%s adapter write cache.\n", | |
2301 | new_state == CACHE_ENABLED ? "Enabling" : "Disabling"); | |
2302 | if (!ioa_cfg->in_reset_reload) | |
2303 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
2304 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2305 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2306 | ||
2307 | return count; | |
2308 | } | |
2309 | ||
2310 | static struct class_device_attribute ipr_ioa_cache_attr = { | |
2311 | .attr = { | |
2312 | .name = "write_cache", | |
2313 | .mode = S_IRUGO | S_IWUSR, | |
2314 | }, | |
2315 | .show = ipr_show_write_caching, | |
2316 | .store = ipr_store_write_caching | |
2317 | }; | |
2318 | ||
1da177e4 LT |
2319 | /** |
2320 | * ipr_show_fw_version - Show the firmware version | |
2321 | * @class_dev: class device struct | |
2322 | * @buf: buffer | |
2323 | * | |
2324 | * Return value: | |
2325 | * number of bytes printed to buffer | |
2326 | **/ | |
2327 | static ssize_t ipr_show_fw_version(struct class_device *class_dev, char *buf) | |
2328 | { | |
2329 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2330 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2331 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; | |
2332 | unsigned long lock_flags = 0; | |
2333 | int len; | |
2334 | ||
2335 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2336 | len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n", | |
2337 | ucode_vpd->major_release, ucode_vpd->card_type, | |
2338 | ucode_vpd->minor_release[0], | |
2339 | ucode_vpd->minor_release[1]); | |
2340 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2341 | return len; | |
2342 | } | |
2343 | ||
2344 | static struct class_device_attribute ipr_fw_version_attr = { | |
2345 | .attr = { | |
2346 | .name = "fw_version", | |
2347 | .mode = S_IRUGO, | |
2348 | }, | |
2349 | .show = ipr_show_fw_version, | |
2350 | }; | |
2351 | ||
2352 | /** | |
2353 | * ipr_show_log_level - Show the adapter's error logging level | |
2354 | * @class_dev: class device struct | |
2355 | * @buf: buffer | |
2356 | * | |
2357 | * Return value: | |
2358 | * number of bytes printed to buffer | |
2359 | **/ | |
2360 | static ssize_t ipr_show_log_level(struct class_device *class_dev, char *buf) | |
2361 | { | |
2362 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2363 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2364 | unsigned long lock_flags = 0; | |
2365 | int len; | |
2366 | ||
2367 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2368 | len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level); | |
2369 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2370 | return len; | |
2371 | } | |
2372 | ||
2373 | /** | |
2374 | * ipr_store_log_level - Change the adapter's error logging level | |
2375 | * @class_dev: class device struct | |
2376 | * @buf: buffer | |
2377 | * | |
2378 | * Return value: | |
2379 | * number of bytes printed to buffer | |
2380 | **/ | |
2381 | static ssize_t ipr_store_log_level(struct class_device *class_dev, | |
2382 | const char *buf, size_t count) | |
2383 | { | |
2384 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2385 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2386 | unsigned long lock_flags = 0; | |
2387 | ||
2388 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2389 | ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); | |
2390 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2391 | return strlen(buf); | |
2392 | } | |
2393 | ||
2394 | static struct class_device_attribute ipr_log_level_attr = { | |
2395 | .attr = { | |
2396 | .name = "log_level", | |
2397 | .mode = S_IRUGO | S_IWUSR, | |
2398 | }, | |
2399 | .show = ipr_show_log_level, | |
2400 | .store = ipr_store_log_level | |
2401 | }; | |
2402 | ||
2403 | /** | |
2404 | * ipr_store_diagnostics - IOA Diagnostics interface | |
2405 | * @class_dev: class_device struct | |
2406 | * @buf: buffer | |
2407 | * @count: buffer size | |
2408 | * | |
2409 | * This function will reset the adapter and wait a reasonable | |
2410 | * amount of time for any errors that the adapter might log. | |
2411 | * | |
2412 | * Return value: | |
2413 | * count on success / other on failure | |
2414 | **/ | |
2415 | static ssize_t ipr_store_diagnostics(struct class_device *class_dev, | |
2416 | const char *buf, size_t count) | |
2417 | { | |
2418 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2419 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2420 | unsigned long lock_flags = 0; | |
2421 | int rc = count; | |
2422 | ||
2423 | if (!capable(CAP_SYS_ADMIN)) | |
2424 | return -EACCES; | |
2425 | ||
2426 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2427 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2428 | ioa_cfg->errors_logged = 0; | |
2429 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
2430 | ||
2431 | if (ioa_cfg->in_reset_reload) { | |
2432 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2433 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2434 | ||
2435 | /* Wait for a second for any errors to be logged */ | |
2436 | msleep(1000); | |
2437 | } else { | |
2438 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2439 | return -EIO; | |
2440 | } | |
2441 | ||
2442 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2443 | if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) | |
2444 | rc = -EIO; | |
2445 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2446 | ||
2447 | return rc; | |
2448 | } | |
2449 | ||
2450 | static struct class_device_attribute ipr_diagnostics_attr = { | |
2451 | .attr = { | |
2452 | .name = "run_diagnostics", | |
2453 | .mode = S_IWUSR, | |
2454 | }, | |
2455 | .store = ipr_store_diagnostics | |
2456 | }; | |
2457 | ||
f37eb54b | 2458 | /** |
2459 | * ipr_show_adapter_state - Show the adapter's state | |
2460 | * @class_dev: class device struct | |
2461 | * @buf: buffer | |
2462 | * | |
2463 | * Return value: | |
2464 | * number of bytes printed to buffer | |
2465 | **/ | |
2466 | static ssize_t ipr_show_adapter_state(struct class_device *class_dev, char *buf) | |
2467 | { | |
2468 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2469 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2470 | unsigned long lock_flags = 0; | |
2471 | int len; | |
2472 | ||
2473 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2474 | if (ioa_cfg->ioa_is_dead) | |
2475 | len = snprintf(buf, PAGE_SIZE, "offline\n"); | |
2476 | else | |
2477 | len = snprintf(buf, PAGE_SIZE, "online\n"); | |
2478 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2479 | return len; | |
2480 | } | |
2481 | ||
2482 | /** | |
2483 | * ipr_store_adapter_state - Change adapter state | |
2484 | * @class_dev: class_device struct | |
2485 | * @buf: buffer | |
2486 | * @count: buffer size | |
2487 | * | |
2488 | * This function will change the adapter's state. | |
2489 | * | |
2490 | * Return value: | |
2491 | * count on success / other on failure | |
2492 | **/ | |
2493 | static ssize_t ipr_store_adapter_state(struct class_device *class_dev, | |
2494 | const char *buf, size_t count) | |
2495 | { | |
2496 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2497 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2498 | unsigned long lock_flags; | |
2499 | int result = count; | |
2500 | ||
2501 | if (!capable(CAP_SYS_ADMIN)) | |
2502 | return -EACCES; | |
2503 | ||
2504 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2505 | if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) { | |
2506 | ioa_cfg->ioa_is_dead = 0; | |
2507 | ioa_cfg->reset_retries = 0; | |
2508 | ioa_cfg->in_ioa_bringdown = 0; | |
2509 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
2510 | } | |
2511 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2512 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2513 | ||
2514 | return result; | |
2515 | } | |
2516 | ||
2517 | static struct class_device_attribute ipr_ioa_state_attr = { | |
2518 | .attr = { | |
2519 | .name = "state", | |
2520 | .mode = S_IRUGO | S_IWUSR, | |
2521 | }, | |
2522 | .show = ipr_show_adapter_state, | |
2523 | .store = ipr_store_adapter_state | |
2524 | }; | |
2525 | ||
1da177e4 LT |
2526 | /** |
2527 | * ipr_store_reset_adapter - Reset the adapter | |
2528 | * @class_dev: class_device struct | |
2529 | * @buf: buffer | |
2530 | * @count: buffer size | |
2531 | * | |
2532 | * This function will reset the adapter. | |
2533 | * | |
2534 | * Return value: | |
2535 | * count on success / other on failure | |
2536 | **/ | |
2537 | static ssize_t ipr_store_reset_adapter(struct class_device *class_dev, | |
2538 | const char *buf, size_t count) | |
2539 | { | |
2540 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2541 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2542 | unsigned long lock_flags; | |
2543 | int result = count; | |
2544 | ||
2545 | if (!capable(CAP_SYS_ADMIN)) | |
2546 | return -EACCES; | |
2547 | ||
2548 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2549 | if (!ioa_cfg->in_reset_reload) | |
2550 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
2551 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2552 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2553 | ||
2554 | return result; | |
2555 | } | |
2556 | ||
2557 | static struct class_device_attribute ipr_ioa_reset_attr = { | |
2558 | .attr = { | |
2559 | .name = "reset_host", | |
2560 | .mode = S_IWUSR, | |
2561 | }, | |
2562 | .store = ipr_store_reset_adapter | |
2563 | }; | |
2564 | ||
2565 | /** | |
2566 | * ipr_alloc_ucode_buffer - Allocates a microcode download buffer | |
2567 | * @buf_len: buffer length | |
2568 | * | |
2569 | * Allocates a DMA'able buffer in chunks and assembles a scatter/gather | |
2570 | * list to use for microcode download | |
2571 | * | |
2572 | * Return value: | |
2573 | * pointer to sglist / NULL on failure | |
2574 | **/ | |
2575 | static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) | |
2576 | { | |
2577 | int sg_size, order, bsize_elem, num_elem, i, j; | |
2578 | struct ipr_sglist *sglist; | |
2579 | struct scatterlist *scatterlist; | |
2580 | struct page *page; | |
2581 | ||
2582 | /* Get the minimum size per scatter/gather element */ | |
2583 | sg_size = buf_len / (IPR_MAX_SGLIST - 1); | |
2584 | ||
2585 | /* Get the actual size per element */ | |
2586 | order = get_order(sg_size); | |
2587 | ||
2588 | /* Determine the actual number of bytes per element */ | |
2589 | bsize_elem = PAGE_SIZE * (1 << order); | |
2590 | ||
2591 | /* Determine the actual number of sg entries needed */ | |
2592 | if (buf_len % bsize_elem) | |
2593 | num_elem = (buf_len / bsize_elem) + 1; | |
2594 | else | |
2595 | num_elem = buf_len / bsize_elem; | |
2596 | ||
2597 | /* Allocate a scatter/gather list for the DMA */ | |
0bc42e35 | 2598 | sglist = kzalloc(sizeof(struct ipr_sglist) + |
1da177e4 LT |
2599 | (sizeof(struct scatterlist) * (num_elem - 1)), |
2600 | GFP_KERNEL); | |
2601 | ||
2602 | if (sglist == NULL) { | |
2603 | ipr_trace; | |
2604 | return NULL; | |
2605 | } | |
2606 | ||
1da177e4 LT |
2607 | scatterlist = sglist->scatterlist; |
2608 | ||
2609 | sglist->order = order; | |
2610 | sglist->num_sg = num_elem; | |
2611 | ||
2612 | /* Allocate a bunch of sg elements */ | |
2613 | for (i = 0; i < num_elem; i++) { | |
2614 | page = alloc_pages(GFP_KERNEL, order); | |
2615 | if (!page) { | |
2616 | ipr_trace; | |
2617 | ||
2618 | /* Free up what we already allocated */ | |
2619 | for (j = i - 1; j >= 0; j--) | |
2620 | __free_pages(scatterlist[j].page, order); | |
2621 | kfree(sglist); | |
2622 | return NULL; | |
2623 | } | |
2624 | ||
2625 | scatterlist[i].page = page; | |
2626 | } | |
2627 | ||
2628 | return sglist; | |
2629 | } | |
2630 | ||
2631 | /** | |
2632 | * ipr_free_ucode_buffer - Frees a microcode download buffer | |
2633 | * @p_dnld: scatter/gather list pointer | |
2634 | * | |
2635 | * Free a DMA'able ucode download buffer previously allocated with | |
2636 | * ipr_alloc_ucode_buffer | |
2637 | * | |
2638 | * Return value: | |
2639 | * nothing | |
2640 | **/ | |
2641 | static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) | |
2642 | { | |
2643 | int i; | |
2644 | ||
2645 | for (i = 0; i < sglist->num_sg; i++) | |
2646 | __free_pages(sglist->scatterlist[i].page, sglist->order); | |
2647 | ||
2648 | kfree(sglist); | |
2649 | } | |
2650 | ||
2651 | /** | |
2652 | * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer | |
2653 | * @sglist: scatter/gather list pointer | |
2654 | * @buffer: buffer pointer | |
2655 | * @len: buffer length | |
2656 | * | |
2657 | * Copy a microcode image from a user buffer into a buffer allocated by | |
2658 | * ipr_alloc_ucode_buffer | |
2659 | * | |
2660 | * Return value: | |
2661 | * 0 on success / other on failure | |
2662 | **/ | |
2663 | static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, | |
2664 | u8 *buffer, u32 len) | |
2665 | { | |
2666 | int bsize_elem, i, result = 0; | |
2667 | struct scatterlist *scatterlist; | |
2668 | void *kaddr; | |
2669 | ||
2670 | /* Determine the actual number of bytes per element */ | |
2671 | bsize_elem = PAGE_SIZE * (1 << sglist->order); | |
2672 | ||
2673 | scatterlist = sglist->scatterlist; | |
2674 | ||
2675 | for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) { | |
2676 | kaddr = kmap(scatterlist[i].page); | |
2677 | memcpy(kaddr, buffer, bsize_elem); | |
2678 | kunmap(scatterlist[i].page); | |
2679 | ||
2680 | scatterlist[i].length = bsize_elem; | |
2681 | ||
2682 | if (result != 0) { | |
2683 | ipr_trace; | |
2684 | return result; | |
2685 | } | |
2686 | } | |
2687 | ||
2688 | if (len % bsize_elem) { | |
2689 | kaddr = kmap(scatterlist[i].page); | |
2690 | memcpy(kaddr, buffer, len % bsize_elem); | |
2691 | kunmap(scatterlist[i].page); | |
2692 | ||
2693 | scatterlist[i].length = len % bsize_elem; | |
2694 | } | |
2695 | ||
2696 | sglist->buffer_len = len; | |
2697 | return result; | |
2698 | } | |
2699 | ||
2700 | /** | |
12baa420 | 2701 | * ipr_build_ucode_ioadl - Build a microcode download IOADL |
1da177e4 LT |
2702 | * @ipr_cmd: ipr command struct |
2703 | * @sglist: scatter/gather list | |
1da177e4 | 2704 | * |
12baa420 | 2705 | * Builds a microcode download IOA data list (IOADL). |
1da177e4 | 2706 | * |
1da177e4 | 2707 | **/ |
12baa420 | 2708 | static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, |
2709 | struct ipr_sglist *sglist) | |
1da177e4 | 2710 | { |
1da177e4 LT |
2711 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
2712 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
2713 | struct scatterlist *scatterlist = sglist->scatterlist; | |
2714 | int i; | |
2715 | ||
12baa420 | 2716 | ipr_cmd->dma_use_sg = sglist->num_dma_sg; |
1da177e4 | 2717 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
12baa420 | 2718 | ioarcb->write_data_transfer_length = cpu_to_be32(sglist->buffer_len); |
1da177e4 LT |
2719 | ioarcb->write_ioadl_len = |
2720 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
2721 | ||
2722 | for (i = 0; i < ipr_cmd->dma_use_sg; i++) { | |
2723 | ioadl[i].flags_and_data_len = | |
2724 | cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i])); | |
2725 | ioadl[i].address = | |
2726 | cpu_to_be32(sg_dma_address(&scatterlist[i])); | |
2727 | } | |
2728 | ||
12baa420 | 2729 | ioadl[i-1].flags_and_data_len |= |
2730 | cpu_to_be32(IPR_IOADL_FLAGS_LAST); | |
2731 | } | |
2732 | ||
2733 | /** | |
2734 | * ipr_update_ioa_ucode - Update IOA's microcode | |
2735 | * @ioa_cfg: ioa config struct | |
2736 | * @sglist: scatter/gather list | |
2737 | * | |
2738 | * Initiate an adapter reset to update the IOA's microcode | |
2739 | * | |
2740 | * Return value: | |
2741 | * 0 on success / -EIO on failure | |
2742 | **/ | |
2743 | static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, | |
2744 | struct ipr_sglist *sglist) | |
2745 | { | |
2746 | unsigned long lock_flags; | |
2747 | ||
2748 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2749 | ||
2750 | if (ioa_cfg->ucode_sglist) { | |
2751 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2752 | dev_err(&ioa_cfg->pdev->dev, | |
2753 | "Microcode download already in progress\n"); | |
2754 | return -EIO; | |
1da177e4 | 2755 | } |
12baa420 | 2756 | |
2757 | sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist, | |
2758 | sglist->num_sg, DMA_TO_DEVICE); | |
2759 | ||
2760 | if (!sglist->num_dma_sg) { | |
2761 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2762 | dev_err(&ioa_cfg->pdev->dev, | |
2763 | "Failed to map microcode download buffer!\n"); | |
1da177e4 LT |
2764 | return -EIO; |
2765 | } | |
2766 | ||
12baa420 | 2767 | ioa_cfg->ucode_sglist = sglist; |
2768 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
2769 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2770 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2771 | ||
2772 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2773 | ioa_cfg->ucode_sglist = NULL; | |
2774 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1da177e4 LT |
2775 | return 0; |
2776 | } | |
2777 | ||
2778 | /** | |
2779 | * ipr_store_update_fw - Update the firmware on the adapter | |
2780 | * @class_dev: class_device struct | |
2781 | * @buf: buffer | |
2782 | * @count: buffer size | |
2783 | * | |
2784 | * This function will update the firmware on the adapter. | |
2785 | * | |
2786 | * Return value: | |
2787 | * count on success / other on failure | |
2788 | **/ | |
2789 | static ssize_t ipr_store_update_fw(struct class_device *class_dev, | |
2790 | const char *buf, size_t count) | |
2791 | { | |
2792 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2793 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2794 | struct ipr_ucode_image_header *image_hdr; | |
2795 | const struct firmware *fw_entry; | |
2796 | struct ipr_sglist *sglist; | |
1da177e4 LT |
2797 | char fname[100]; |
2798 | char *src; | |
2799 | int len, result, dnld_size; | |
2800 | ||
2801 | if (!capable(CAP_SYS_ADMIN)) | |
2802 | return -EACCES; | |
2803 | ||
2804 | len = snprintf(fname, 99, "%s", buf); | |
2805 | fname[len-1] = '\0'; | |
2806 | ||
2807 | if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) { | |
2808 | dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname); | |
2809 | return -EIO; | |
2810 | } | |
2811 | ||
2812 | image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; | |
2813 | ||
2814 | if (be32_to_cpu(image_hdr->header_length) > fw_entry->size || | |
2815 | (ioa_cfg->vpd_cbs->page3_data.card_type && | |
2816 | ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) { | |
2817 | dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n"); | |
2818 | release_firmware(fw_entry); | |
2819 | return -EINVAL; | |
2820 | } | |
2821 | ||
2822 | src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); | |
2823 | dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); | |
2824 | sglist = ipr_alloc_ucode_buffer(dnld_size); | |
2825 | ||
2826 | if (!sglist) { | |
2827 | dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n"); | |
2828 | release_firmware(fw_entry); | |
2829 | return -ENOMEM; | |
2830 | } | |
2831 | ||
2832 | result = ipr_copy_ucode_buffer(sglist, src, dnld_size); | |
2833 | ||
2834 | if (result) { | |
2835 | dev_err(&ioa_cfg->pdev->dev, | |
2836 | "Microcode buffer copy to DMA buffer failed\n"); | |
12baa420 | 2837 | goto out; |
1da177e4 LT |
2838 | } |
2839 | ||
12baa420 | 2840 | result = ipr_update_ioa_ucode(ioa_cfg, sglist); |
1da177e4 | 2841 | |
12baa420 | 2842 | if (!result) |
2843 | result = count; | |
2844 | out: | |
1da177e4 LT |
2845 | ipr_free_ucode_buffer(sglist); |
2846 | release_firmware(fw_entry); | |
12baa420 | 2847 | return result; |
1da177e4 LT |
2848 | } |
2849 | ||
2850 | static struct class_device_attribute ipr_update_fw_attr = { | |
2851 | .attr = { | |
2852 | .name = "update_fw", | |
2853 | .mode = S_IWUSR, | |
2854 | }, | |
2855 | .store = ipr_store_update_fw | |
2856 | }; | |
2857 | ||
2858 | static struct class_device_attribute *ipr_ioa_attrs[] = { | |
2859 | &ipr_fw_version_attr, | |
2860 | &ipr_log_level_attr, | |
2861 | &ipr_diagnostics_attr, | |
f37eb54b | 2862 | &ipr_ioa_state_attr, |
1da177e4 LT |
2863 | &ipr_ioa_reset_attr, |
2864 | &ipr_update_fw_attr, | |
62275040 | 2865 | &ipr_ioa_cache_attr, |
1da177e4 LT |
2866 | NULL, |
2867 | }; | |
2868 | ||
2869 | #ifdef CONFIG_SCSI_IPR_DUMP | |
2870 | /** | |
2871 | * ipr_read_dump - Dump the adapter | |
2872 | * @kobj: kobject struct | |
2873 | * @buf: buffer | |
2874 | * @off: offset | |
2875 | * @count: buffer size | |
2876 | * | |
2877 | * Return value: | |
2878 | * number of bytes printed to buffer | |
2879 | **/ | |
2880 | static ssize_t ipr_read_dump(struct kobject *kobj, char *buf, | |
2881 | loff_t off, size_t count) | |
2882 | { | |
2883 | struct class_device *cdev = container_of(kobj,struct class_device,kobj); | |
2884 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2885 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2886 | struct ipr_dump *dump; | |
2887 | unsigned long lock_flags = 0; | |
2888 | char *src; | |
2889 | int len; | |
2890 | size_t rc = count; | |
2891 | ||
2892 | if (!capable(CAP_SYS_ADMIN)) | |
2893 | return -EACCES; | |
2894 | ||
2895 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2896 | dump = ioa_cfg->dump; | |
2897 | ||
2898 | if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { | |
2899 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2900 | return 0; | |
2901 | } | |
2902 | kref_get(&dump->kref); | |
2903 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2904 | ||
2905 | if (off > dump->driver_dump.hdr.len) { | |
2906 | kref_put(&dump->kref, ipr_release_dump); | |
2907 | return 0; | |
2908 | } | |
2909 | ||
2910 | if (off + count > dump->driver_dump.hdr.len) { | |
2911 | count = dump->driver_dump.hdr.len - off; | |
2912 | rc = count; | |
2913 | } | |
2914 | ||
2915 | if (count && off < sizeof(dump->driver_dump)) { | |
2916 | if (off + count > sizeof(dump->driver_dump)) | |
2917 | len = sizeof(dump->driver_dump) - off; | |
2918 | else | |
2919 | len = count; | |
2920 | src = (u8 *)&dump->driver_dump + off; | |
2921 | memcpy(buf, src, len); | |
2922 | buf += len; | |
2923 | off += len; | |
2924 | count -= len; | |
2925 | } | |
2926 | ||
2927 | off -= sizeof(dump->driver_dump); | |
2928 | ||
2929 | if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) { | |
2930 | if (off + count > offsetof(struct ipr_ioa_dump, ioa_data)) | |
2931 | len = offsetof(struct ipr_ioa_dump, ioa_data) - off; | |
2932 | else | |
2933 | len = count; | |
2934 | src = (u8 *)&dump->ioa_dump + off; | |
2935 | memcpy(buf, src, len); | |
2936 | buf += len; | |
2937 | off += len; | |
2938 | count -= len; | |
2939 | } | |
2940 | ||
2941 | off -= offsetof(struct ipr_ioa_dump, ioa_data); | |
2942 | ||
2943 | while (count) { | |
2944 | if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) | |
2945 | len = PAGE_ALIGN(off) - off; | |
2946 | else | |
2947 | len = count; | |
2948 | src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; | |
2949 | src += off & ~PAGE_MASK; | |
2950 | memcpy(buf, src, len); | |
2951 | buf += len; | |
2952 | off += len; | |
2953 | count -= len; | |
2954 | } | |
2955 | ||
2956 | kref_put(&dump->kref, ipr_release_dump); | |
2957 | return rc; | |
2958 | } | |
2959 | ||
2960 | /** | |
2961 | * ipr_alloc_dump - Prepare for adapter dump | |
2962 | * @ioa_cfg: ioa config struct | |
2963 | * | |
2964 | * Return value: | |
2965 | * 0 on success / other on failure | |
2966 | **/ | |
2967 | static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) | |
2968 | { | |
2969 | struct ipr_dump *dump; | |
2970 | unsigned long lock_flags = 0; | |
2971 | ||
0bc42e35 | 2972 | dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL); |
1da177e4 LT |
2973 | |
2974 | if (!dump) { | |
2975 | ipr_err("Dump memory allocation failed\n"); | |
2976 | return -ENOMEM; | |
2977 | } | |
2978 | ||
1da177e4 LT |
2979 | kref_init(&dump->kref); |
2980 | dump->ioa_cfg = ioa_cfg; | |
2981 | ||
2982 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2983 | ||
2984 | if (INACTIVE != ioa_cfg->sdt_state) { | |
2985 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2986 | kfree(dump); | |
2987 | return 0; | |
2988 | } | |
2989 | ||
2990 | ioa_cfg->dump = dump; | |
2991 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; | |
2992 | if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) { | |
2993 | ioa_cfg->dump_taken = 1; | |
2994 | schedule_work(&ioa_cfg->work_q); | |
2995 | } | |
2996 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2997 | ||
1da177e4 LT |
2998 | return 0; |
2999 | } | |
3000 | ||
3001 | /** | |
3002 | * ipr_free_dump - Free adapter dump memory | |
3003 | * @ioa_cfg: ioa config struct | |
3004 | * | |
3005 | * Return value: | |
3006 | * 0 on success / other on failure | |
3007 | **/ | |
3008 | static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) | |
3009 | { | |
3010 | struct ipr_dump *dump; | |
3011 | unsigned long lock_flags = 0; | |
3012 | ||
3013 | ENTER; | |
3014 | ||
3015 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3016 | dump = ioa_cfg->dump; | |
3017 | if (!dump) { | |
3018 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3019 | return 0; | |
3020 | } | |
3021 | ||
3022 | ioa_cfg->dump = NULL; | |
3023 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3024 | ||
3025 | kref_put(&dump->kref, ipr_release_dump); | |
3026 | ||
3027 | LEAVE; | |
3028 | return 0; | |
3029 | } | |
3030 | ||
3031 | /** | |
3032 | * ipr_write_dump - Setup dump state of adapter | |
3033 | * @kobj: kobject struct | |
3034 | * @buf: buffer | |
3035 | * @off: offset | |
3036 | * @count: buffer size | |
3037 | * | |
3038 | * Return value: | |
3039 | * number of bytes printed to buffer | |
3040 | **/ | |
3041 | static ssize_t ipr_write_dump(struct kobject *kobj, char *buf, | |
3042 | loff_t off, size_t count) | |
3043 | { | |
3044 | struct class_device *cdev = container_of(kobj,struct class_device,kobj); | |
3045 | struct Scsi_Host *shost = class_to_shost(cdev); | |
3046 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
3047 | int rc; | |
3048 | ||
3049 | if (!capable(CAP_SYS_ADMIN)) | |
3050 | return -EACCES; | |
3051 | ||
3052 | if (buf[0] == '1') | |
3053 | rc = ipr_alloc_dump(ioa_cfg); | |
3054 | else if (buf[0] == '0') | |
3055 | rc = ipr_free_dump(ioa_cfg); | |
3056 | else | |
3057 | return -EINVAL; | |
3058 | ||
3059 | if (rc) | |
3060 | return rc; | |
3061 | else | |
3062 | return count; | |
3063 | } | |
3064 | ||
3065 | static struct bin_attribute ipr_dump_attr = { | |
3066 | .attr = { | |
3067 | .name = "dump", | |
3068 | .mode = S_IRUSR | S_IWUSR, | |
3069 | }, | |
3070 | .size = 0, | |
3071 | .read = ipr_read_dump, | |
3072 | .write = ipr_write_dump | |
3073 | }; | |
3074 | #else | |
3075 | static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; | |
3076 | #endif | |
3077 | ||
3078 | /** | |
3079 | * ipr_change_queue_depth - Change the device's queue depth | |
3080 | * @sdev: scsi device struct | |
3081 | * @qdepth: depth to set | |
3082 | * | |
3083 | * Return value: | |
3084 | * actual depth set | |
3085 | **/ | |
3086 | static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth) | |
3087 | { | |
35a39691 BK |
3088 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
3089 | struct ipr_resource_entry *res; | |
3090 | unsigned long lock_flags = 0; | |
3091 | ||
3092 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3093 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
3094 | ||
3095 | if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN) | |
3096 | qdepth = IPR_MAX_CMD_PER_ATA_LUN; | |
3097 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3098 | ||
1da177e4 LT |
3099 | scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); |
3100 | return sdev->queue_depth; | |
3101 | } | |
3102 | ||
3103 | /** | |
3104 | * ipr_change_queue_type - Change the device's queue type | |
3105 | * @dsev: scsi device struct | |
3106 | * @tag_type: type of tags to use | |
3107 | * | |
3108 | * Return value: | |
3109 | * actual queue type set | |
3110 | **/ | |
3111 | static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type) | |
3112 | { | |
3113 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; | |
3114 | struct ipr_resource_entry *res; | |
3115 | unsigned long lock_flags = 0; | |
3116 | ||
3117 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3118 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
3119 | ||
3120 | if (res) { | |
3121 | if (ipr_is_gscsi(res) && sdev->tagged_supported) { | |
3122 | /* | |
3123 | * We don't bother quiescing the device here since the | |
3124 | * adapter firmware does it for us. | |
3125 | */ | |
3126 | scsi_set_tag_type(sdev, tag_type); | |
3127 | ||
3128 | if (tag_type) | |
3129 | scsi_activate_tcq(sdev, sdev->queue_depth); | |
3130 | else | |
3131 | scsi_deactivate_tcq(sdev, sdev->queue_depth); | |
3132 | } else | |
3133 | tag_type = 0; | |
3134 | } else | |
3135 | tag_type = 0; | |
3136 | ||
3137 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3138 | return tag_type; | |
3139 | } | |
3140 | ||
3141 | /** | |
3142 | * ipr_show_adapter_handle - Show the adapter's resource handle for this device | |
3143 | * @dev: device struct | |
3144 | * @buf: buffer | |
3145 | * | |
3146 | * Return value: | |
3147 | * number of bytes printed to buffer | |
3148 | **/ | |
10523b3b | 3149 | static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
3150 | { |
3151 | struct scsi_device *sdev = to_scsi_device(dev); | |
3152 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; | |
3153 | struct ipr_resource_entry *res; | |
3154 | unsigned long lock_flags = 0; | |
3155 | ssize_t len = -ENXIO; | |
3156 | ||
3157 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3158 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
3159 | if (res) | |
3160 | len = snprintf(buf, PAGE_SIZE, "%08X\n", res->cfgte.res_handle); | |
3161 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3162 | return len; | |
3163 | } | |
3164 | ||
3165 | static struct device_attribute ipr_adapter_handle_attr = { | |
3166 | .attr = { | |
3167 | .name = "adapter_handle", | |
3168 | .mode = S_IRUSR, | |
3169 | }, | |
3170 | .show = ipr_show_adapter_handle | |
3171 | }; | |
3172 | ||
3173 | static struct device_attribute *ipr_dev_attrs[] = { | |
3174 | &ipr_adapter_handle_attr, | |
3175 | NULL, | |
3176 | }; | |
3177 | ||
3178 | /** | |
3179 | * ipr_biosparam - Return the HSC mapping | |
3180 | * @sdev: scsi device struct | |
3181 | * @block_device: block device pointer | |
3182 | * @capacity: capacity of the device | |
3183 | * @parm: Array containing returned HSC values. | |
3184 | * | |
3185 | * This function generates the HSC parms that fdisk uses. | |
3186 | * We want to make sure we return something that places partitions | |
3187 | * on 4k boundaries for best performance with the IOA. | |
3188 | * | |
3189 | * Return value: | |
3190 | * 0 on success | |
3191 | **/ | |
3192 | static int ipr_biosparam(struct scsi_device *sdev, | |
3193 | struct block_device *block_device, | |
3194 | sector_t capacity, int *parm) | |
3195 | { | |
3196 | int heads, sectors; | |
3197 | sector_t cylinders; | |
3198 | ||
3199 | heads = 128; | |
3200 | sectors = 32; | |
3201 | ||
3202 | cylinders = capacity; | |
3203 | sector_div(cylinders, (128 * 32)); | |
3204 | ||
3205 | /* return result */ | |
3206 | parm[0] = heads; | |
3207 | parm[1] = sectors; | |
3208 | parm[2] = cylinders; | |
3209 | ||
3210 | return 0; | |
3211 | } | |
3212 | ||
35a39691 BK |
3213 | /** |
3214 | * ipr_find_starget - Find target based on bus/target. | |
3215 | * @starget: scsi target struct | |
3216 | * | |
3217 | * Return value: | |
3218 | * resource entry pointer if found / NULL if not found | |
3219 | **/ | |
3220 | static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget) | |
3221 | { | |
3222 | struct Scsi_Host *shost = dev_to_shost(&starget->dev); | |
3223 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; | |
3224 | struct ipr_resource_entry *res; | |
3225 | ||
3226 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3227 | if ((res->cfgte.res_addr.bus == starget->channel) && | |
3228 | (res->cfgte.res_addr.target == starget->id) && | |
3229 | (res->cfgte.res_addr.lun == 0)) { | |
3230 | return res; | |
3231 | } | |
3232 | } | |
3233 | ||
3234 | return NULL; | |
3235 | } | |
3236 | ||
3237 | static struct ata_port_info sata_port_info; | |
3238 | ||
3239 | /** | |
3240 | * ipr_target_alloc - Prepare for commands to a SCSI target | |
3241 | * @starget: scsi target struct | |
3242 | * | |
3243 | * If the device is a SATA device, this function allocates an | |
3244 | * ATA port with libata, else it does nothing. | |
3245 | * | |
3246 | * Return value: | |
3247 | * 0 on success / non-0 on failure | |
3248 | **/ | |
3249 | static int ipr_target_alloc(struct scsi_target *starget) | |
3250 | { | |
3251 | struct Scsi_Host *shost = dev_to_shost(&starget->dev); | |
3252 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; | |
3253 | struct ipr_sata_port *sata_port; | |
3254 | struct ata_port *ap; | |
3255 | struct ipr_resource_entry *res; | |
3256 | unsigned long lock_flags; | |
3257 | ||
3258 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3259 | res = ipr_find_starget(starget); | |
3260 | starget->hostdata = NULL; | |
3261 | ||
3262 | if (res && ipr_is_gata(res)) { | |
3263 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3264 | sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL); | |
3265 | if (!sata_port) | |
3266 | return -ENOMEM; | |
3267 | ||
3268 | ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost); | |
3269 | if (ap) { | |
3270 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3271 | sata_port->ioa_cfg = ioa_cfg; | |
3272 | sata_port->ap = ap; | |
3273 | sata_port->res = res; | |
3274 | ||
3275 | res->sata_port = sata_port; | |
3276 | ap->private_data = sata_port; | |
3277 | starget->hostdata = sata_port; | |
3278 | } else { | |
3279 | kfree(sata_port); | |
3280 | return -ENOMEM; | |
3281 | } | |
3282 | } | |
3283 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3284 | ||
3285 | return 0; | |
3286 | } | |
3287 | ||
3288 | /** | |
3289 | * ipr_target_destroy - Destroy a SCSI target | |
3290 | * @starget: scsi target struct | |
3291 | * | |
3292 | * If the device was a SATA device, this function frees the libata | |
3293 | * ATA port, else it does nothing. | |
3294 | * | |
3295 | **/ | |
3296 | static void ipr_target_destroy(struct scsi_target *starget) | |
3297 | { | |
3298 | struct ipr_sata_port *sata_port = starget->hostdata; | |
3299 | ||
3300 | if (sata_port) { | |
3301 | starget->hostdata = NULL; | |
3302 | ata_sas_port_destroy(sata_port->ap); | |
3303 | kfree(sata_port); | |
3304 | } | |
3305 | } | |
3306 | ||
3307 | /** | |
3308 | * ipr_find_sdev - Find device based on bus/target/lun. | |
3309 | * @sdev: scsi device struct | |
3310 | * | |
3311 | * Return value: | |
3312 | * resource entry pointer if found / NULL if not found | |
3313 | **/ | |
3314 | static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev) | |
3315 | { | |
3316 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
3317 | struct ipr_resource_entry *res; | |
3318 | ||
3319 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3320 | if ((res->cfgte.res_addr.bus == sdev->channel) && | |
3321 | (res->cfgte.res_addr.target == sdev->id) && | |
3322 | (res->cfgte.res_addr.lun == sdev->lun)) | |
3323 | return res; | |
3324 | } | |
3325 | ||
3326 | return NULL; | |
3327 | } | |
3328 | ||
1da177e4 LT |
3329 | /** |
3330 | * ipr_slave_destroy - Unconfigure a SCSI device | |
3331 | * @sdev: scsi device struct | |
3332 | * | |
3333 | * Return value: | |
3334 | * nothing | |
3335 | **/ | |
3336 | static void ipr_slave_destroy(struct scsi_device *sdev) | |
3337 | { | |
3338 | struct ipr_resource_entry *res; | |
3339 | struct ipr_ioa_cfg *ioa_cfg; | |
3340 | unsigned long lock_flags = 0; | |
3341 | ||
3342 | ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
3343 | ||
3344 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3345 | res = (struct ipr_resource_entry *) sdev->hostdata; | |
3346 | if (res) { | |
35a39691 BK |
3347 | if (res->sata_port) |
3348 | ata_port_disable(res->sata_port->ap); | |
1da177e4 LT |
3349 | sdev->hostdata = NULL; |
3350 | res->sdev = NULL; | |
35a39691 | 3351 | res->sata_port = NULL; |
1da177e4 LT |
3352 | } |
3353 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3354 | } | |
3355 | ||
3356 | /** | |
3357 | * ipr_slave_configure - Configure a SCSI device | |
3358 | * @sdev: scsi device struct | |
3359 | * | |
3360 | * This function configures the specified scsi device. | |
3361 | * | |
3362 | * Return value: | |
3363 | * 0 on success | |
3364 | **/ | |
3365 | static int ipr_slave_configure(struct scsi_device *sdev) | |
3366 | { | |
3367 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
3368 | struct ipr_resource_entry *res; | |
3369 | unsigned long lock_flags = 0; | |
3370 | ||
3371 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3372 | res = sdev->hostdata; | |
3373 | if (res) { | |
3374 | if (ipr_is_af_dasd_device(res)) | |
3375 | sdev->type = TYPE_RAID; | |
0726ce26 | 3376 | if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { |
1da177e4 | 3377 | sdev->scsi_level = 4; |
0726ce26 | 3378 | sdev->no_uld_attach = 1; |
3379 | } | |
1da177e4 LT |
3380 | if (ipr_is_vset_device(res)) { |
3381 | sdev->timeout = IPR_VSET_RW_TIMEOUT; | |
3382 | blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); | |
3383 | } | |
e4fbf44e | 3384 | if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)) |
1da177e4 | 3385 | sdev->allow_restart = 1; |
35a39691 BK |
3386 | if (ipr_is_gata(res) && res->sata_port) { |
3387 | scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN); | |
3388 | ata_sas_slave_configure(sdev, res->sata_port->ap); | |
3389 | } else { | |
3390 | scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); | |
3391 | } | |
1da177e4 LT |
3392 | } |
3393 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3394 | return 0; | |
3395 | } | |
3396 | ||
35a39691 BK |
3397 | /** |
3398 | * ipr_ata_slave_alloc - Prepare for commands to a SATA device | |
3399 | * @sdev: scsi device struct | |
3400 | * | |
3401 | * This function initializes an ATA port so that future commands | |
3402 | * sent through queuecommand will work. | |
3403 | * | |
3404 | * Return value: | |
3405 | * 0 on success | |
3406 | **/ | |
3407 | static int ipr_ata_slave_alloc(struct scsi_device *sdev) | |
3408 | { | |
3409 | struct ipr_sata_port *sata_port = NULL; | |
3410 | int rc = -ENXIO; | |
3411 | ||
3412 | ENTER; | |
3413 | if (sdev->sdev_target) | |
3414 | sata_port = sdev->sdev_target->hostdata; | |
3415 | if (sata_port) | |
3416 | rc = ata_sas_port_init(sata_port->ap); | |
3417 | if (rc) | |
3418 | ipr_slave_destroy(sdev); | |
3419 | ||
3420 | LEAVE; | |
3421 | return rc; | |
3422 | } | |
3423 | ||
1da177e4 LT |
3424 | /** |
3425 | * ipr_slave_alloc - Prepare for commands to a device. | |
3426 | * @sdev: scsi device struct | |
3427 | * | |
3428 | * This function saves a pointer to the resource entry | |
3429 | * in the scsi device struct if the device exists. We | |
3430 | * can then use this pointer in ipr_queuecommand when | |
3431 | * handling new commands. | |
3432 | * | |
3433 | * Return value: | |
692aebfc | 3434 | * 0 on success / -ENXIO if device does not exist |
1da177e4 LT |
3435 | **/ |
3436 | static int ipr_slave_alloc(struct scsi_device *sdev) | |
3437 | { | |
3438 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
3439 | struct ipr_resource_entry *res; | |
3440 | unsigned long lock_flags; | |
692aebfc | 3441 | int rc = -ENXIO; |
1da177e4 LT |
3442 | |
3443 | sdev->hostdata = NULL; | |
3444 | ||
3445 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3446 | ||
35a39691 BK |
3447 | res = ipr_find_sdev(sdev); |
3448 | if (res) { | |
3449 | res->sdev = sdev; | |
3450 | res->add_to_ml = 0; | |
3451 | res->in_erp = 0; | |
3452 | sdev->hostdata = res; | |
3453 | if (!ipr_is_naca_model(res)) | |
3454 | res->needs_sync_complete = 1; | |
3455 | rc = 0; | |
3456 | if (ipr_is_gata(res)) { | |
3457 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3458 | return ipr_ata_slave_alloc(sdev); | |
1da177e4 LT |
3459 | } |
3460 | } | |
3461 | ||
3462 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3463 | ||
692aebfc | 3464 | return rc; |
1da177e4 LT |
3465 | } |
3466 | ||
3467 | /** | |
3468 | * ipr_eh_host_reset - Reset the host adapter | |
3469 | * @scsi_cmd: scsi command struct | |
3470 | * | |
3471 | * Return value: | |
3472 | * SUCCESS / FAILED | |
3473 | **/ | |
df0ae249 | 3474 | static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd) |
1da177e4 LT |
3475 | { |
3476 | struct ipr_ioa_cfg *ioa_cfg; | |
3477 | int rc; | |
3478 | ||
3479 | ENTER; | |
3480 | ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; | |
3481 | ||
3482 | dev_err(&ioa_cfg->pdev->dev, | |
3483 | "Adapter being reset as a result of error recovery.\n"); | |
3484 | ||
3485 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
3486 | ioa_cfg->sdt_state = GET_DUMP; | |
3487 | ||
3488 | rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV); | |
3489 | ||
3490 | LEAVE; | |
3491 | return rc; | |
3492 | } | |
3493 | ||
df0ae249 JG |
3494 | static int ipr_eh_host_reset(struct scsi_cmnd * cmd) |
3495 | { | |
3496 | int rc; | |
3497 | ||
3498 | spin_lock_irq(cmd->device->host->host_lock); | |
3499 | rc = __ipr_eh_host_reset(cmd); | |
3500 | spin_unlock_irq(cmd->device->host->host_lock); | |
3501 | ||
3502 | return rc; | |
3503 | } | |
3504 | ||
c6513096 BK |
3505 | /** |
3506 | * ipr_device_reset - Reset the device | |
3507 | * @ioa_cfg: ioa config struct | |
3508 | * @res: resource entry struct | |
3509 | * | |
3510 | * This function issues a device reset to the affected device. | |
3511 | * If the device is a SCSI device, a LUN reset will be sent | |
3512 | * to the device first. If that does not work, a target reset | |
35a39691 BK |
3513 | * will be sent. If the device is a SATA device, a PHY reset will |
3514 | * be sent. | |
c6513096 BK |
3515 | * |
3516 | * Return value: | |
3517 | * 0 on success / non-zero on failure | |
3518 | **/ | |
3519 | static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg, | |
3520 | struct ipr_resource_entry *res) | |
3521 | { | |
3522 | struct ipr_cmnd *ipr_cmd; | |
3523 | struct ipr_ioarcb *ioarcb; | |
3524 | struct ipr_cmd_pkt *cmd_pkt; | |
35a39691 | 3525 | struct ipr_ioarcb_ata_regs *regs; |
c6513096 BK |
3526 | u32 ioasc; |
3527 | ||
3528 | ENTER; | |
3529 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
3530 | ioarcb = &ipr_cmd->ioarcb; | |
3531 | cmd_pkt = &ioarcb->cmd_pkt; | |
35a39691 | 3532 | regs = &ioarcb->add_data.u.regs; |
c6513096 BK |
3533 | |
3534 | ioarcb->res_handle = res->cfgte.res_handle; | |
3535 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
3536 | cmd_pkt->cdb[0] = IPR_RESET_DEVICE; | |
35a39691 BK |
3537 | if (ipr_is_gata(res)) { |
3538 | cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET; | |
3539 | ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(regs->flags)); | |
3540 | regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; | |
3541 | } | |
c6513096 BK |
3542 | |
3543 | ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); | |
3544 | ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
3545 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
35a39691 BK |
3546 | if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) |
3547 | memcpy(&res->sata_port->ioasa, &ipr_cmd->ioasa.u.gata, | |
3548 | sizeof(struct ipr_ioasa_gata)); | |
c6513096 BK |
3549 | |
3550 | LEAVE; | |
3551 | return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0); | |
3552 | } | |
3553 | ||
35a39691 BK |
3554 | /** |
3555 | * ipr_sata_reset - Reset the SATA port | |
3556 | * @ap: SATA port to reset | |
3557 | * @classes: class of the attached device | |
3558 | * | |
3559 | * This function issues a SATA phy reset to the affected ATA port. | |
3560 | * | |
3561 | * Return value: | |
3562 | * 0 on success / non-zero on failure | |
3563 | **/ | |
3564 | static int ipr_sata_reset(struct ata_port *ap, unsigned int *classes) | |
3565 | { | |
3566 | struct ipr_sata_port *sata_port = ap->private_data; | |
3567 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; | |
3568 | struct ipr_resource_entry *res; | |
3569 | unsigned long lock_flags = 0; | |
3570 | int rc = -ENXIO; | |
3571 | ||
3572 | ENTER; | |
3573 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
73d98ff0 BK |
3574 | while(ioa_cfg->in_reset_reload) { |
3575 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3576 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
3577 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3578 | } | |
3579 | ||
35a39691 BK |
3580 | res = sata_port->res; |
3581 | if (res) { | |
3582 | rc = ipr_device_reset(ioa_cfg, res); | |
3583 | switch(res->cfgte.proto) { | |
3584 | case IPR_PROTO_SATA: | |
3585 | case IPR_PROTO_SAS_STP: | |
3586 | *classes = ATA_DEV_ATA; | |
3587 | break; | |
3588 | case IPR_PROTO_SATA_ATAPI: | |
3589 | case IPR_PROTO_SAS_STP_ATAPI: | |
3590 | *classes = ATA_DEV_ATAPI; | |
3591 | break; | |
3592 | default: | |
3593 | *classes = ATA_DEV_UNKNOWN; | |
3594 | break; | |
3595 | }; | |
3596 | } | |
3597 | ||
3598 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3599 | LEAVE; | |
3600 | return rc; | |
3601 | } | |
3602 | ||
1da177e4 LT |
3603 | /** |
3604 | * ipr_eh_dev_reset - Reset the device | |
3605 | * @scsi_cmd: scsi command struct | |
3606 | * | |
3607 | * This function issues a device reset to the affected device. | |
3608 | * A LUN reset will be sent to the device first. If that does | |
3609 | * not work, a target reset will be sent. | |
3610 | * | |
3611 | * Return value: | |
3612 | * SUCCESS / FAILED | |
3613 | **/ | |
94d0e7b8 | 3614 | static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd) |
1da177e4 LT |
3615 | { |
3616 | struct ipr_cmnd *ipr_cmd; | |
3617 | struct ipr_ioa_cfg *ioa_cfg; | |
3618 | struct ipr_resource_entry *res; | |
35a39691 BK |
3619 | struct ata_port *ap; |
3620 | int rc = 0; | |
1da177e4 LT |
3621 | |
3622 | ENTER; | |
3623 | ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; | |
3624 | res = scsi_cmd->device->hostdata; | |
3625 | ||
eeb88307 | 3626 | if (!res) |
1da177e4 LT |
3627 | return FAILED; |
3628 | ||
3629 | /* | |
3630 | * If we are currently going through reset/reload, return failed. This will force the | |
3631 | * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the | |
3632 | * reset to complete | |
3633 | */ | |
3634 | if (ioa_cfg->in_reset_reload) | |
3635 | return FAILED; | |
3636 | if (ioa_cfg->ioa_is_dead) | |
3637 | return FAILED; | |
3638 | ||
3639 | list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { | |
3640 | if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) { | |
3641 | if (ipr_cmd->scsi_cmd) | |
3642 | ipr_cmd->done = ipr_scsi_eh_done; | |
7402ecef BK |
3643 | if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) { |
3644 | ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT; | |
3645 | ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED; | |
3646 | } | |
1da177e4 LT |
3647 | } |
3648 | } | |
3649 | ||
3650 | res->resetting_device = 1; | |
fb3ed3cb | 3651 | scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n"); |
35a39691 BK |
3652 | |
3653 | if (ipr_is_gata(res) && res->sata_port) { | |
3654 | ap = res->sata_port->ap; | |
3655 | spin_unlock_irq(scsi_cmd->device->host->host_lock); | |
3656 | ata_do_eh(ap, NULL, NULL, ipr_sata_reset, NULL); | |
3657 | spin_lock_irq(scsi_cmd->device->host->host_lock); | |
3658 | } else | |
3659 | rc = ipr_device_reset(ioa_cfg, res); | |
1da177e4 LT |
3660 | res->resetting_device = 0; |
3661 | ||
1da177e4 | 3662 | LEAVE; |
c6513096 | 3663 | return (rc ? FAILED : SUCCESS); |
1da177e4 LT |
3664 | } |
3665 | ||
94d0e7b8 JG |
3666 | static int ipr_eh_dev_reset(struct scsi_cmnd * cmd) |
3667 | { | |
3668 | int rc; | |
3669 | ||
3670 | spin_lock_irq(cmd->device->host->host_lock); | |
3671 | rc = __ipr_eh_dev_reset(cmd); | |
3672 | spin_unlock_irq(cmd->device->host->host_lock); | |
3673 | ||
3674 | return rc; | |
3675 | } | |
3676 | ||
1da177e4 LT |
3677 | /** |
3678 | * ipr_bus_reset_done - Op done function for bus reset. | |
3679 | * @ipr_cmd: ipr command struct | |
3680 | * | |
3681 | * This function is the op done function for a bus reset | |
3682 | * | |
3683 | * Return value: | |
3684 | * none | |
3685 | **/ | |
3686 | static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) | |
3687 | { | |
3688 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
3689 | struct ipr_resource_entry *res; | |
3690 | ||
3691 | ENTER; | |
3692 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3693 | if (!memcmp(&res->cfgte.res_handle, &ipr_cmd->ioarcb.res_handle, | |
3694 | sizeof(res->cfgte.res_handle))) { | |
3695 | scsi_report_bus_reset(ioa_cfg->host, res->cfgte.res_addr.bus); | |
3696 | break; | |
3697 | } | |
3698 | } | |
3699 | ||
3700 | /* | |
3701 | * If abort has not completed, indicate the reset has, else call the | |
3702 | * abort's done function to wake the sleeping eh thread | |
3703 | */ | |
3704 | if (ipr_cmd->sibling->sibling) | |
3705 | ipr_cmd->sibling->sibling = NULL; | |
3706 | else | |
3707 | ipr_cmd->sibling->done(ipr_cmd->sibling); | |
3708 | ||
3709 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
3710 | LEAVE; | |
3711 | } | |
3712 | ||
3713 | /** | |
3714 | * ipr_abort_timeout - An abort task has timed out | |
3715 | * @ipr_cmd: ipr command struct | |
3716 | * | |
3717 | * This function handles when an abort task times out. If this | |
3718 | * happens we issue a bus reset since we have resources tied | |
3719 | * up that must be freed before returning to the midlayer. | |
3720 | * | |
3721 | * Return value: | |
3722 | * none | |
3723 | **/ | |
3724 | static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd) | |
3725 | { | |
3726 | struct ipr_cmnd *reset_cmd; | |
3727 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
3728 | struct ipr_cmd_pkt *cmd_pkt; | |
3729 | unsigned long lock_flags = 0; | |
3730 | ||
3731 | ENTER; | |
3732 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3733 | if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { | |
3734 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3735 | return; | |
3736 | } | |
3737 | ||
fb3ed3cb | 3738 | sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n"); |
1da177e4 LT |
3739 | reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
3740 | ipr_cmd->sibling = reset_cmd; | |
3741 | reset_cmd->sibling = ipr_cmd; | |
3742 | reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; | |
3743 | cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; | |
3744 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
3745 | cmd_pkt->cdb[0] = IPR_RESET_DEVICE; | |
3746 | cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; | |
3747 | ||
3748 | ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); | |
3749 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3750 | LEAVE; | |
3751 | } | |
3752 | ||
3753 | /** | |
3754 | * ipr_cancel_op - Cancel specified op | |
3755 | * @scsi_cmd: scsi command struct | |
3756 | * | |
3757 | * This function cancels specified op. | |
3758 | * | |
3759 | * Return value: | |
3760 | * SUCCESS / FAILED | |
3761 | **/ | |
3762 | static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd) | |
3763 | { | |
3764 | struct ipr_cmnd *ipr_cmd; | |
3765 | struct ipr_ioa_cfg *ioa_cfg; | |
3766 | struct ipr_resource_entry *res; | |
3767 | struct ipr_cmd_pkt *cmd_pkt; | |
3768 | u32 ioasc; | |
3769 | int op_found = 0; | |
3770 | ||
3771 | ENTER; | |
3772 | ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; | |
3773 | res = scsi_cmd->device->hostdata; | |
3774 | ||
8fa728a2 JG |
3775 | /* If we are currently going through reset/reload, return failed. |
3776 | * This will force the mid-layer to call ipr_eh_host_reset, | |
3777 | * which will then go to sleep and wait for the reset to complete | |
3778 | */ | |
3779 | if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead) | |
3780 | return FAILED; | |
04d9768f | 3781 | if (!res || !ipr_is_gscsi(res)) |
1da177e4 LT |
3782 | return FAILED; |
3783 | ||
3784 | list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { | |
3785 | if (ipr_cmd->scsi_cmd == scsi_cmd) { | |
3786 | ipr_cmd->done = ipr_scsi_eh_done; | |
3787 | op_found = 1; | |
3788 | break; | |
3789 | } | |
3790 | } | |
3791 | ||
3792 | if (!op_found) | |
3793 | return SUCCESS; | |
3794 | ||
3795 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
3796 | ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle; | |
3797 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; | |
3798 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
3799 | cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; | |
3800 | ipr_cmd->u.sdev = scsi_cmd->device; | |
3801 | ||
fb3ed3cb BK |
3802 | scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n", |
3803 | scsi_cmd->cmnd[0]); | |
1da177e4 LT |
3804 | ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); |
3805 | ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
3806 | ||
3807 | /* | |
3808 | * If the abort task timed out and we sent a bus reset, we will get | |
3809 | * one the following responses to the abort | |
3810 | */ | |
3811 | if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { | |
3812 | ioasc = 0; | |
3813 | ipr_trace; | |
3814 | } | |
3815 | ||
3816 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
ee0a90fa | 3817 | if (!ipr_is_naca_model(res)) |
3818 | res->needs_sync_complete = 1; | |
1da177e4 LT |
3819 | |
3820 | LEAVE; | |
3821 | return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS); | |
3822 | } | |
3823 | ||
3824 | /** | |
3825 | * ipr_eh_abort - Abort a single op | |
3826 | * @scsi_cmd: scsi command struct | |
3827 | * | |
3828 | * Return value: | |
3829 | * SUCCESS / FAILED | |
3830 | **/ | |
3831 | static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd) | |
3832 | { | |
8fa728a2 JG |
3833 | unsigned long flags; |
3834 | int rc; | |
1da177e4 LT |
3835 | |
3836 | ENTER; | |
1da177e4 | 3837 | |
8fa728a2 JG |
3838 | spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); |
3839 | rc = ipr_cancel_op(scsi_cmd); | |
3840 | spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags); | |
1da177e4 LT |
3841 | |
3842 | LEAVE; | |
8fa728a2 | 3843 | return rc; |
1da177e4 LT |
3844 | } |
3845 | ||
3846 | /** | |
3847 | * ipr_handle_other_interrupt - Handle "other" interrupts | |
3848 | * @ioa_cfg: ioa config struct | |
3849 | * @int_reg: interrupt register | |
3850 | * | |
3851 | * Return value: | |
3852 | * IRQ_NONE / IRQ_HANDLED | |
3853 | **/ | |
3854 | static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, | |
3855 | volatile u32 int_reg) | |
3856 | { | |
3857 | irqreturn_t rc = IRQ_HANDLED; | |
3858 | ||
3859 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { | |
3860 | /* Mask the interrupt */ | |
3861 | writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg); | |
3862 | ||
3863 | /* Clear the interrupt */ | |
3864 | writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg); | |
3865 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
3866 | ||
3867 | list_del(&ioa_cfg->reset_cmd->queue); | |
3868 | del_timer(&ioa_cfg->reset_cmd->timer); | |
3869 | ipr_reset_ioa_job(ioa_cfg->reset_cmd); | |
3870 | } else { | |
3871 | if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) | |
3872 | ioa_cfg->ioa_unit_checked = 1; | |
3873 | else | |
3874 | dev_err(&ioa_cfg->pdev->dev, | |
3875 | "Permanent IOA failure. 0x%08X\n", int_reg); | |
3876 | ||
3877 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
3878 | ioa_cfg->sdt_state = GET_DUMP; | |
3879 | ||
3880 | ipr_mask_and_clear_interrupts(ioa_cfg, ~0); | |
3881 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
3882 | } | |
3883 | ||
3884 | return rc; | |
3885 | } | |
3886 | ||
3887 | /** | |
3888 | * ipr_isr - Interrupt service routine | |
3889 | * @irq: irq number | |
3890 | * @devp: pointer to ioa config struct | |
1da177e4 LT |
3891 | * |
3892 | * Return value: | |
3893 | * IRQ_NONE / IRQ_HANDLED | |
3894 | **/ | |
7d12e780 | 3895 | static irqreturn_t ipr_isr(int irq, void *devp) |
1da177e4 LT |
3896 | { |
3897 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; | |
3898 | unsigned long lock_flags = 0; | |
3899 | volatile u32 int_reg, int_mask_reg; | |
3900 | u32 ioasc; | |
3901 | u16 cmd_index; | |
3902 | struct ipr_cmnd *ipr_cmd; | |
3903 | irqreturn_t rc = IRQ_NONE; | |
3904 | ||
3905 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3906 | ||
3907 | /* If interrupts are disabled, ignore the interrupt */ | |
3908 | if (!ioa_cfg->allow_interrupts) { | |
3909 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3910 | return IRQ_NONE; | |
3911 | } | |
3912 | ||
3913 | int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
3914 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; | |
3915 | ||
3916 | /* If an interrupt on the adapter did not occur, ignore it */ | |
3917 | if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) { | |
3918 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3919 | return IRQ_NONE; | |
3920 | } | |
3921 | ||
3922 | while (1) { | |
3923 | ipr_cmd = NULL; | |
3924 | ||
3925 | while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == | |
3926 | ioa_cfg->toggle_bit) { | |
3927 | ||
3928 | cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) & | |
3929 | IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; | |
3930 | ||
3931 | if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) { | |
3932 | ioa_cfg->errors_logged++; | |
3933 | dev_err(&ioa_cfg->pdev->dev, "Invalid response handle from IOA\n"); | |
3934 | ||
3935 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
3936 | ioa_cfg->sdt_state = GET_DUMP; | |
3937 | ||
3938 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
3939 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3940 | return IRQ_HANDLED; | |
3941 | } | |
3942 | ||
3943 | ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; | |
3944 | ||
3945 | ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
3946 | ||
3947 | ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc); | |
3948 | ||
3949 | list_del(&ipr_cmd->queue); | |
3950 | del_timer(&ipr_cmd->timer); | |
3951 | ipr_cmd->done(ipr_cmd); | |
3952 | ||
3953 | rc = IRQ_HANDLED; | |
3954 | ||
3955 | if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) { | |
3956 | ioa_cfg->hrrq_curr++; | |
3957 | } else { | |
3958 | ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; | |
3959 | ioa_cfg->toggle_bit ^= 1u; | |
3960 | } | |
3961 | } | |
3962 | ||
3963 | if (ipr_cmd != NULL) { | |
3964 | /* Clear the PCI interrupt */ | |
3965 | writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg); | |
3966 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; | |
3967 | } else | |
3968 | break; | |
3969 | } | |
3970 | ||
3971 | if (unlikely(rc == IRQ_NONE)) | |
3972 | rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); | |
3973 | ||
3974 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3975 | return rc; | |
3976 | } | |
3977 | ||
3978 | /** | |
3979 | * ipr_build_ioadl - Build a scatter/gather list and map the buffer | |
3980 | * @ioa_cfg: ioa config struct | |
3981 | * @ipr_cmd: ipr command struct | |
3982 | * | |
3983 | * Return value: | |
3984 | * 0 on success / -1 on failure | |
3985 | **/ | |
3986 | static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, | |
3987 | struct ipr_cmnd *ipr_cmd) | |
3988 | { | |
3989 | int i; | |
3990 | struct scatterlist *sglist; | |
3991 | u32 length; | |
3992 | u32 ioadl_flags = 0; | |
3993 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
3994 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
3995 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
3996 | ||
3997 | length = scsi_cmd->request_bufflen; | |
3998 | ||
3999 | if (length == 0) | |
4000 | return 0; | |
4001 | ||
4002 | if (scsi_cmd->use_sg) { | |
4003 | ipr_cmd->dma_use_sg = pci_map_sg(ioa_cfg->pdev, | |
4004 | scsi_cmd->request_buffer, | |
4005 | scsi_cmd->use_sg, | |
4006 | scsi_cmd->sc_data_direction); | |
4007 | ||
4008 | if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { | |
4009 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; | |
4010 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
4011 | ioarcb->write_data_transfer_length = cpu_to_be32(length); | |
4012 | ioarcb->write_ioadl_len = | |
4013 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
4014 | } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
4015 | ioadl_flags = IPR_IOADL_FLAGS_READ; | |
4016 | ioarcb->read_data_transfer_length = cpu_to_be32(length); | |
4017 | ioarcb->read_ioadl_len = | |
4018 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
4019 | } | |
4020 | ||
4021 | sglist = scsi_cmd->request_buffer; | |
4022 | ||
4023 | for (i = 0; i < ipr_cmd->dma_use_sg; i++) { | |
4024 | ioadl[i].flags_and_data_len = | |
4025 | cpu_to_be32(ioadl_flags | sg_dma_len(&sglist[i])); | |
4026 | ioadl[i].address = | |
4027 | cpu_to_be32(sg_dma_address(&sglist[i])); | |
4028 | } | |
4029 | ||
4030 | if (likely(ipr_cmd->dma_use_sg)) { | |
4031 | ioadl[i-1].flags_and_data_len |= | |
4032 | cpu_to_be32(IPR_IOADL_FLAGS_LAST); | |
4033 | return 0; | |
4034 | } else | |
4035 | dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); | |
4036 | } else { | |
4037 | if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { | |
4038 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; | |
4039 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
4040 | ioarcb->write_data_transfer_length = cpu_to_be32(length); | |
4041 | ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
4042 | } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
4043 | ioadl_flags = IPR_IOADL_FLAGS_READ; | |
4044 | ioarcb->read_data_transfer_length = cpu_to_be32(length); | |
4045 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
4046 | } | |
4047 | ||
4048 | ipr_cmd->dma_handle = pci_map_single(ioa_cfg->pdev, | |
4049 | scsi_cmd->request_buffer, length, | |
4050 | scsi_cmd->sc_data_direction); | |
4051 | ||
4052 | if (likely(!pci_dma_mapping_error(ipr_cmd->dma_handle))) { | |
4053 | ipr_cmd->dma_use_sg = 1; | |
4054 | ioadl[0].flags_and_data_len = | |
4055 | cpu_to_be32(ioadl_flags | length | IPR_IOADL_FLAGS_LAST); | |
4056 | ioadl[0].address = cpu_to_be32(ipr_cmd->dma_handle); | |
4057 | return 0; | |
4058 | } else | |
4059 | dev_err(&ioa_cfg->pdev->dev, "pci_map_single failed!\n"); | |
4060 | } | |
4061 | ||
4062 | return -1; | |
4063 | } | |
4064 | ||
4065 | /** | |
4066 | * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes | |
4067 | * @scsi_cmd: scsi command struct | |
4068 | * | |
4069 | * Return value: | |
4070 | * task attributes | |
4071 | **/ | |
4072 | static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd) | |
4073 | { | |
4074 | u8 tag[2]; | |
4075 | u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK; | |
4076 | ||
4077 | if (scsi_populate_tag_msg(scsi_cmd, tag)) { | |
4078 | switch (tag[0]) { | |
4079 | case MSG_SIMPLE_TAG: | |
4080 | rc = IPR_FLAGS_LO_SIMPLE_TASK; | |
4081 | break; | |
4082 | case MSG_HEAD_TAG: | |
4083 | rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK; | |
4084 | break; | |
4085 | case MSG_ORDERED_TAG: | |
4086 | rc = IPR_FLAGS_LO_ORDERED_TASK; | |
4087 | break; | |
4088 | }; | |
4089 | } | |
4090 | ||
4091 | return rc; | |
4092 | } | |
4093 | ||
4094 | /** | |
4095 | * ipr_erp_done - Process completion of ERP for a device | |
4096 | * @ipr_cmd: ipr command struct | |
4097 | * | |
4098 | * This function copies the sense buffer into the scsi_cmd | |
4099 | * struct and pushes the scsi_done function. | |
4100 | * | |
4101 | * Return value: | |
4102 | * nothing | |
4103 | **/ | |
4104 | static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) | |
4105 | { | |
4106 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
4107 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; | |
4108 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4109 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
4110 | ||
4111 | if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { | |
4112 | scsi_cmd->result |= (DID_ERROR << 16); | |
fb3ed3cb BK |
4113 | scmd_printk(KERN_ERR, scsi_cmd, |
4114 | "Request Sense failed with IOASC: 0x%08X\n", ioasc); | |
1da177e4 LT |
4115 | } else { |
4116 | memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, | |
4117 | SCSI_SENSE_BUFFERSIZE); | |
4118 | } | |
4119 | ||
4120 | if (res) { | |
ee0a90fa | 4121 | if (!ipr_is_naca_model(res)) |
4122 | res->needs_sync_complete = 1; | |
1da177e4 LT |
4123 | res->in_erp = 0; |
4124 | } | |
4125 | ipr_unmap_sglist(ioa_cfg, ipr_cmd); | |
4126 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4127 | scsi_cmd->scsi_done(scsi_cmd); | |
4128 | } | |
4129 | ||
4130 | /** | |
4131 | * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP | |
4132 | * @ipr_cmd: ipr command struct | |
4133 | * | |
4134 | * Return value: | |
4135 | * none | |
4136 | **/ | |
4137 | static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) | |
4138 | { | |
4139 | struct ipr_ioarcb *ioarcb; | |
4140 | struct ipr_ioasa *ioasa; | |
4141 | ||
4142 | ioarcb = &ipr_cmd->ioarcb; | |
4143 | ioasa = &ipr_cmd->ioasa; | |
4144 | ||
4145 | memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); | |
4146 | ioarcb->write_data_transfer_length = 0; | |
4147 | ioarcb->read_data_transfer_length = 0; | |
4148 | ioarcb->write_ioadl_len = 0; | |
4149 | ioarcb->read_ioadl_len = 0; | |
4150 | ioasa->ioasc = 0; | |
4151 | ioasa->residual_data_len = 0; | |
4152 | } | |
4153 | ||
4154 | /** | |
4155 | * ipr_erp_request_sense - Send request sense to a device | |
4156 | * @ipr_cmd: ipr command struct | |
4157 | * | |
4158 | * This function sends a request sense to a device as a result | |
4159 | * of a check condition. | |
4160 | * | |
4161 | * Return value: | |
4162 | * nothing | |
4163 | **/ | |
4164 | static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) | |
4165 | { | |
4166 | struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; | |
4167 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
4168 | ||
4169 | if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { | |
4170 | ipr_erp_done(ipr_cmd); | |
4171 | return; | |
4172 | } | |
4173 | ||
4174 | ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); | |
4175 | ||
4176 | cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; | |
4177 | cmd_pkt->cdb[0] = REQUEST_SENSE; | |
4178 | cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; | |
4179 | cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; | |
4180 | cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; | |
4181 | cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); | |
4182 | ||
4183 | ipr_cmd->ioadl[0].flags_and_data_len = | |
4184 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | SCSI_SENSE_BUFFERSIZE); | |
4185 | ipr_cmd->ioadl[0].address = | |
4186 | cpu_to_be32(ipr_cmd->sense_buffer_dma); | |
4187 | ||
4188 | ipr_cmd->ioarcb.read_ioadl_len = | |
4189 | cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
4190 | ipr_cmd->ioarcb.read_data_transfer_length = | |
4191 | cpu_to_be32(SCSI_SENSE_BUFFERSIZE); | |
4192 | ||
4193 | ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout, | |
4194 | IPR_REQUEST_SENSE_TIMEOUT * 2); | |
4195 | } | |
4196 | ||
4197 | /** | |
4198 | * ipr_erp_cancel_all - Send cancel all to a device | |
4199 | * @ipr_cmd: ipr command struct | |
4200 | * | |
4201 | * This function sends a cancel all to a device to clear the | |
4202 | * queue. If we are running TCQ on the device, QERR is set to 1, | |
4203 | * which means all outstanding ops have been dropped on the floor. | |
4204 | * Cancel all will return them to us. | |
4205 | * | |
4206 | * Return value: | |
4207 | * nothing | |
4208 | **/ | |
4209 | static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) | |
4210 | { | |
4211 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
4212 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; | |
4213 | struct ipr_cmd_pkt *cmd_pkt; | |
4214 | ||
4215 | res->in_erp = 1; | |
4216 | ||
4217 | ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); | |
4218 | ||
4219 | if (!scsi_get_tag_type(scsi_cmd->device)) { | |
4220 | ipr_erp_request_sense(ipr_cmd); | |
4221 | return; | |
4222 | } | |
4223 | ||
4224 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; | |
4225 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
4226 | cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; | |
4227 | ||
4228 | ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout, | |
4229 | IPR_CANCEL_ALL_TIMEOUT); | |
4230 | } | |
4231 | ||
4232 | /** | |
4233 | * ipr_dump_ioasa - Dump contents of IOASA | |
4234 | * @ioa_cfg: ioa config struct | |
4235 | * @ipr_cmd: ipr command struct | |
fe964d0a | 4236 | * @res: resource entry struct |
1da177e4 LT |
4237 | * |
4238 | * This function is invoked by the interrupt handler when ops | |
4239 | * fail. It will log the IOASA if appropriate. Only called | |
4240 | * for GPDD ops. | |
4241 | * | |
4242 | * Return value: | |
4243 | * none | |
4244 | **/ | |
4245 | static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, | |
fe964d0a | 4246 | struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res) |
1da177e4 LT |
4247 | { |
4248 | int i; | |
4249 | u16 data_len; | |
4250 | u32 ioasc; | |
4251 | struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; | |
4252 | __be32 *ioasa_data = (__be32 *)ioasa; | |
4253 | int error_index; | |
4254 | ||
4255 | ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK; | |
4256 | ||
4257 | if (0 == ioasc) | |
4258 | return; | |
4259 | ||
4260 | if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) | |
4261 | return; | |
4262 | ||
4263 | error_index = ipr_get_error(ioasc); | |
4264 | ||
4265 | if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { | |
4266 | /* Don't log an error if the IOA already logged one */ | |
4267 | if (ioasa->ilid != 0) | |
4268 | return; | |
4269 | ||
4270 | if (ipr_error_table[error_index].log_ioasa == 0) | |
4271 | return; | |
4272 | } | |
4273 | ||
fe964d0a | 4274 | ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error); |
1da177e4 LT |
4275 | |
4276 | if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len)) | |
4277 | data_len = sizeof(struct ipr_ioasa); | |
4278 | else | |
4279 | data_len = be16_to_cpu(ioasa->ret_stat_len); | |
4280 | ||
4281 | ipr_err("IOASA Dump:\n"); | |
4282 | ||
4283 | for (i = 0; i < data_len / 4; i += 4) { | |
4284 | ipr_err("%08X: %08X %08X %08X %08X\n", i*4, | |
4285 | be32_to_cpu(ioasa_data[i]), | |
4286 | be32_to_cpu(ioasa_data[i+1]), | |
4287 | be32_to_cpu(ioasa_data[i+2]), | |
4288 | be32_to_cpu(ioasa_data[i+3])); | |
4289 | } | |
4290 | } | |
4291 | ||
4292 | /** | |
4293 | * ipr_gen_sense - Generate SCSI sense data from an IOASA | |
4294 | * @ioasa: IOASA | |
4295 | * @sense_buf: sense data buffer | |
4296 | * | |
4297 | * Return value: | |
4298 | * none | |
4299 | **/ | |
4300 | static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) | |
4301 | { | |
4302 | u32 failing_lba; | |
4303 | u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; | |
4304 | struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; | |
4305 | struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; | |
4306 | u32 ioasc = be32_to_cpu(ioasa->ioasc); | |
4307 | ||
4308 | memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); | |
4309 | ||
4310 | if (ioasc >= IPR_FIRST_DRIVER_IOASC) | |
4311 | return; | |
4312 | ||
4313 | ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; | |
4314 | ||
4315 | if (ipr_is_vset_device(res) && | |
4316 | ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && | |
4317 | ioasa->u.vset.failing_lba_hi != 0) { | |
4318 | sense_buf[0] = 0x72; | |
4319 | sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); | |
4320 | sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); | |
4321 | sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); | |
4322 | ||
4323 | sense_buf[7] = 12; | |
4324 | sense_buf[8] = 0; | |
4325 | sense_buf[9] = 0x0A; | |
4326 | sense_buf[10] = 0x80; | |
4327 | ||
4328 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); | |
4329 | ||
4330 | sense_buf[12] = (failing_lba & 0xff000000) >> 24; | |
4331 | sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; | |
4332 | sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; | |
4333 | sense_buf[15] = failing_lba & 0x000000ff; | |
4334 | ||
4335 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); | |
4336 | ||
4337 | sense_buf[16] = (failing_lba & 0xff000000) >> 24; | |
4338 | sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; | |
4339 | sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; | |
4340 | sense_buf[19] = failing_lba & 0x000000ff; | |
4341 | } else { | |
4342 | sense_buf[0] = 0x70; | |
4343 | sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); | |
4344 | sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); | |
4345 | sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); | |
4346 | ||
4347 | /* Illegal request */ | |
4348 | if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && | |
4349 | (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) { | |
4350 | sense_buf[7] = 10; /* additional length */ | |
4351 | ||
4352 | /* IOARCB was in error */ | |
4353 | if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) | |
4354 | sense_buf[15] = 0xC0; | |
4355 | else /* Parameter data was invalid */ | |
4356 | sense_buf[15] = 0x80; | |
4357 | ||
4358 | sense_buf[16] = | |
4359 | ((IPR_FIELD_POINTER_MASK & | |
4360 | be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff; | |
4361 | sense_buf[17] = | |
4362 | (IPR_FIELD_POINTER_MASK & | |
4363 | be32_to_cpu(ioasa->ioasc_specific)) & 0xff; | |
4364 | } else { | |
4365 | if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { | |
4366 | if (ipr_is_vset_device(res)) | |
4367 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); | |
4368 | else | |
4369 | failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); | |
4370 | ||
4371 | sense_buf[0] |= 0x80; /* Or in the Valid bit */ | |
4372 | sense_buf[3] = (failing_lba & 0xff000000) >> 24; | |
4373 | sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; | |
4374 | sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; | |
4375 | sense_buf[6] = failing_lba & 0x000000ff; | |
4376 | } | |
4377 | ||
4378 | sense_buf[7] = 6; /* additional length */ | |
4379 | } | |
4380 | } | |
4381 | } | |
4382 | ||
ee0a90fa | 4383 | /** |
4384 | * ipr_get_autosense - Copy autosense data to sense buffer | |
4385 | * @ipr_cmd: ipr command struct | |
4386 | * | |
4387 | * This function copies the autosense buffer to the buffer | |
4388 | * in the scsi_cmd, if there is autosense available. | |
4389 | * | |
4390 | * Return value: | |
4391 | * 1 if autosense was available / 0 if not | |
4392 | **/ | |
4393 | static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd) | |
4394 | { | |
4395 | struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; | |
4396 | ||
117d2ce1 | 4397 | if ((be32_to_cpu(ioasa->ioasc_specific) & IPR_AUTOSENSE_VALID) == 0) |
ee0a90fa | 4398 | return 0; |
4399 | ||
4400 | memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data, | |
4401 | min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len), | |
4402 | SCSI_SENSE_BUFFERSIZE)); | |
4403 | return 1; | |
4404 | } | |
4405 | ||
1da177e4 LT |
4406 | /** |
4407 | * ipr_erp_start - Process an error response for a SCSI op | |
4408 | * @ioa_cfg: ioa config struct | |
4409 | * @ipr_cmd: ipr command struct | |
4410 | * | |
4411 | * This function determines whether or not to initiate ERP | |
4412 | * on the affected device. | |
4413 | * | |
4414 | * Return value: | |
4415 | * nothing | |
4416 | **/ | |
4417 | static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, | |
4418 | struct ipr_cmnd *ipr_cmd) | |
4419 | { | |
4420 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
4421 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; | |
4422 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
4423 | ||
4424 | if (!res) { | |
4425 | ipr_scsi_eh_done(ipr_cmd); | |
4426 | return; | |
4427 | } | |
4428 | ||
4429 | if (ipr_is_gscsi(res)) | |
fe964d0a | 4430 | ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); |
1da177e4 LT |
4431 | else |
4432 | ipr_gen_sense(ipr_cmd); | |
4433 | ||
4434 | switch (ioasc & IPR_IOASC_IOASC_MASK) { | |
4435 | case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: | |
ee0a90fa | 4436 | if (ipr_is_naca_model(res)) |
4437 | scsi_cmd->result |= (DID_ABORT << 16); | |
4438 | else | |
4439 | scsi_cmd->result |= (DID_IMM_RETRY << 16); | |
1da177e4 LT |
4440 | break; |
4441 | case IPR_IOASC_IR_RESOURCE_HANDLE: | |
b0df54bb | 4442 | case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: |
1da177e4 LT |
4443 | scsi_cmd->result |= (DID_NO_CONNECT << 16); |
4444 | break; | |
4445 | case IPR_IOASC_HW_SEL_TIMEOUT: | |
4446 | scsi_cmd->result |= (DID_NO_CONNECT << 16); | |
ee0a90fa | 4447 | if (!ipr_is_naca_model(res)) |
4448 | res->needs_sync_complete = 1; | |
1da177e4 LT |
4449 | break; |
4450 | case IPR_IOASC_SYNC_REQUIRED: | |
4451 | if (!res->in_erp) | |
4452 | res->needs_sync_complete = 1; | |
4453 | scsi_cmd->result |= (DID_IMM_RETRY << 16); | |
4454 | break; | |
4455 | case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ | |
b0df54bb | 4456 | case IPR_IOASA_IR_DUAL_IOA_DISABLED: |
1da177e4 LT |
4457 | scsi_cmd->result |= (DID_PASSTHROUGH << 16); |
4458 | break; | |
4459 | case IPR_IOASC_BUS_WAS_RESET: | |
4460 | case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: | |
4461 | /* | |
4462 | * Report the bus reset and ask for a retry. The device | |
4463 | * will give CC/UA the next command. | |
4464 | */ | |
4465 | if (!res->resetting_device) | |
4466 | scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); | |
4467 | scsi_cmd->result |= (DID_ERROR << 16); | |
ee0a90fa | 4468 | if (!ipr_is_naca_model(res)) |
4469 | res->needs_sync_complete = 1; | |
1da177e4 LT |
4470 | break; |
4471 | case IPR_IOASC_HW_DEV_BUS_STATUS: | |
4472 | scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); | |
4473 | if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { | |
ee0a90fa | 4474 | if (!ipr_get_autosense(ipr_cmd)) { |
4475 | if (!ipr_is_naca_model(res)) { | |
4476 | ipr_erp_cancel_all(ipr_cmd); | |
4477 | return; | |
4478 | } | |
4479 | } | |
1da177e4 | 4480 | } |
ee0a90fa | 4481 | if (!ipr_is_naca_model(res)) |
4482 | res->needs_sync_complete = 1; | |
1da177e4 LT |
4483 | break; |
4484 | case IPR_IOASC_NR_INIT_CMD_REQUIRED: | |
4485 | break; | |
4486 | default: | |
5b7304fb BK |
4487 | if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) |
4488 | scsi_cmd->result |= (DID_ERROR << 16); | |
ee0a90fa | 4489 | if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res)) |
1da177e4 LT |
4490 | res->needs_sync_complete = 1; |
4491 | break; | |
4492 | } | |
4493 | ||
4494 | ipr_unmap_sglist(ioa_cfg, ipr_cmd); | |
4495 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4496 | scsi_cmd->scsi_done(scsi_cmd); | |
4497 | } | |
4498 | ||
4499 | /** | |
4500 | * ipr_scsi_done - mid-layer done function | |
4501 | * @ipr_cmd: ipr command struct | |
4502 | * | |
4503 | * This function is invoked by the interrupt handler for | |
4504 | * ops generated by the SCSI mid-layer | |
4505 | * | |
4506 | * Return value: | |
4507 | * none | |
4508 | **/ | |
4509 | static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) | |
4510 | { | |
4511 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4512 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
4513 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
4514 | ||
4515 | scsi_cmd->resid = be32_to_cpu(ipr_cmd->ioasa.residual_data_len); | |
4516 | ||
4517 | if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { | |
4518 | ipr_unmap_sglist(ioa_cfg, ipr_cmd); | |
4519 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4520 | scsi_cmd->scsi_done(scsi_cmd); | |
4521 | } else | |
4522 | ipr_erp_start(ioa_cfg, ipr_cmd); | |
4523 | } | |
4524 | ||
1da177e4 LT |
4525 | /** |
4526 | * ipr_queuecommand - Queue a mid-layer request | |
4527 | * @scsi_cmd: scsi command struct | |
4528 | * @done: done function | |
4529 | * | |
4530 | * This function queues a request generated by the mid-layer. | |
4531 | * | |
4532 | * Return value: | |
4533 | * 0 on success | |
4534 | * SCSI_MLQUEUE_DEVICE_BUSY if device is busy | |
4535 | * SCSI_MLQUEUE_HOST_BUSY if host is busy | |
4536 | **/ | |
4537 | static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd, | |
4538 | void (*done) (struct scsi_cmnd *)) | |
4539 | { | |
4540 | struct ipr_ioa_cfg *ioa_cfg; | |
4541 | struct ipr_resource_entry *res; | |
4542 | struct ipr_ioarcb *ioarcb; | |
4543 | struct ipr_cmnd *ipr_cmd; | |
4544 | int rc = 0; | |
4545 | ||
4546 | scsi_cmd->scsi_done = done; | |
4547 | ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; | |
4548 | res = scsi_cmd->device->hostdata; | |
4549 | scsi_cmd->result = (DID_OK << 16); | |
4550 | ||
4551 | /* | |
4552 | * We are currently blocking all devices due to a host reset | |
4553 | * We have told the host to stop giving us new requests, but | |
4554 | * ERP ops don't count. FIXME | |
4555 | */ | |
4556 | if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead)) | |
4557 | return SCSI_MLQUEUE_HOST_BUSY; | |
4558 | ||
4559 | /* | |
4560 | * FIXME - Create scsi_set_host_offline interface | |
4561 | * and the ioa_is_dead check can be removed | |
4562 | */ | |
4563 | if (unlikely(ioa_cfg->ioa_is_dead || !res)) { | |
4564 | memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); | |
4565 | scsi_cmd->result = (DID_NO_CONNECT << 16); | |
4566 | scsi_cmd->scsi_done(scsi_cmd); | |
4567 | return 0; | |
4568 | } | |
4569 | ||
35a39691 BK |
4570 | if (ipr_is_gata(res) && res->sata_port) |
4571 | return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap); | |
4572 | ||
1da177e4 LT |
4573 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
4574 | ioarcb = &ipr_cmd->ioarcb; | |
4575 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
4576 | ||
4577 | memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); | |
4578 | ipr_cmd->scsi_cmd = scsi_cmd; | |
4579 | ioarcb->res_handle = res->cfgte.res_handle; | |
4580 | ipr_cmd->done = ipr_scsi_done; | |
4581 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr)); | |
4582 | ||
4583 | if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { | |
4584 | if (scsi_cmd->underflow == 0) | |
4585 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; | |
4586 | ||
4587 | if (res->needs_sync_complete) { | |
4588 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; | |
4589 | res->needs_sync_complete = 0; | |
4590 | } | |
4591 | ||
4592 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; | |
4593 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; | |
4594 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; | |
4595 | ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd); | |
4596 | } | |
4597 | ||
4598 | if (scsi_cmd->cmnd[0] >= 0xC0 && | |
4599 | (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) | |
4600 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
4601 | ||
1da177e4 LT |
4602 | if (likely(rc == 0)) |
4603 | rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); | |
4604 | ||
4605 | if (likely(rc == 0)) { | |
4606 | mb(); | |
4607 | writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), | |
4608 | ioa_cfg->regs.ioarrin_reg); | |
4609 | } else { | |
4610 | list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4611 | return SCSI_MLQUEUE_HOST_BUSY; | |
4612 | } | |
4613 | ||
4614 | return 0; | |
4615 | } | |
4616 | ||
35a39691 BK |
4617 | /** |
4618 | * ipr_ioctl - IOCTL handler | |
4619 | * @sdev: scsi device struct | |
4620 | * @cmd: IOCTL cmd | |
4621 | * @arg: IOCTL arg | |
4622 | * | |
4623 | * Return value: | |
4624 | * 0 on success / other on failure | |
4625 | **/ | |
4626 | int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) | |
4627 | { | |
4628 | struct ipr_resource_entry *res; | |
4629 | ||
4630 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
4631 | if (res && ipr_is_gata(res)) | |
4632 | return ata_scsi_ioctl(sdev, cmd, arg); | |
4633 | ||
4634 | return -EINVAL; | |
4635 | } | |
4636 | ||
1da177e4 LT |
4637 | /** |
4638 | * ipr_info - Get information about the card/driver | |
4639 | * @scsi_host: scsi host struct | |
4640 | * | |
4641 | * Return value: | |
4642 | * pointer to buffer with description string | |
4643 | **/ | |
4644 | static const char * ipr_ioa_info(struct Scsi_Host *host) | |
4645 | { | |
4646 | static char buffer[512]; | |
4647 | struct ipr_ioa_cfg *ioa_cfg; | |
4648 | unsigned long lock_flags = 0; | |
4649 | ||
4650 | ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; | |
4651 | ||
4652 | spin_lock_irqsave(host->host_lock, lock_flags); | |
4653 | sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type); | |
4654 | spin_unlock_irqrestore(host->host_lock, lock_flags); | |
4655 | ||
4656 | return buffer; | |
4657 | } | |
4658 | ||
4659 | static struct scsi_host_template driver_template = { | |
4660 | .module = THIS_MODULE, | |
4661 | .name = "IPR", | |
4662 | .info = ipr_ioa_info, | |
35a39691 | 4663 | .ioctl = ipr_ioctl, |
1da177e4 LT |
4664 | .queuecommand = ipr_queuecommand, |
4665 | .eh_abort_handler = ipr_eh_abort, | |
4666 | .eh_device_reset_handler = ipr_eh_dev_reset, | |
4667 | .eh_host_reset_handler = ipr_eh_host_reset, | |
4668 | .slave_alloc = ipr_slave_alloc, | |
4669 | .slave_configure = ipr_slave_configure, | |
4670 | .slave_destroy = ipr_slave_destroy, | |
35a39691 BK |
4671 | .target_alloc = ipr_target_alloc, |
4672 | .target_destroy = ipr_target_destroy, | |
1da177e4 LT |
4673 | .change_queue_depth = ipr_change_queue_depth, |
4674 | .change_queue_type = ipr_change_queue_type, | |
4675 | .bios_param = ipr_biosparam, | |
4676 | .can_queue = IPR_MAX_COMMANDS, | |
4677 | .this_id = -1, | |
4678 | .sg_tablesize = IPR_MAX_SGLIST, | |
4679 | .max_sectors = IPR_IOA_MAX_SECTORS, | |
4680 | .cmd_per_lun = IPR_MAX_CMD_PER_LUN, | |
4681 | .use_clustering = ENABLE_CLUSTERING, | |
4682 | .shost_attrs = ipr_ioa_attrs, | |
4683 | .sdev_attrs = ipr_dev_attrs, | |
4684 | .proc_name = IPR_NAME | |
4685 | }; | |
4686 | ||
35a39691 BK |
4687 | /** |
4688 | * ipr_ata_phy_reset - libata phy_reset handler | |
4689 | * @ap: ata port to reset | |
4690 | * | |
4691 | **/ | |
4692 | static void ipr_ata_phy_reset(struct ata_port *ap) | |
4693 | { | |
4694 | unsigned long flags; | |
4695 | struct ipr_sata_port *sata_port = ap->private_data; | |
4696 | struct ipr_resource_entry *res = sata_port->res; | |
4697 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; | |
4698 | int rc; | |
4699 | ||
4700 | ENTER; | |
4701 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
4702 | while(ioa_cfg->in_reset_reload) { | |
4703 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
4704 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
4705 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
4706 | } | |
4707 | ||
4708 | if (!ioa_cfg->allow_cmds) | |
4709 | goto out_unlock; | |
4710 | ||
4711 | rc = ipr_device_reset(ioa_cfg, res); | |
4712 | ||
4713 | if (rc) { | |
4714 | ap->ops->port_disable(ap); | |
4715 | goto out_unlock; | |
4716 | } | |
4717 | ||
4718 | switch(res->cfgte.proto) { | |
4719 | case IPR_PROTO_SATA: | |
4720 | case IPR_PROTO_SAS_STP: | |
4721 | ap->device[0].class = ATA_DEV_ATA; | |
4722 | break; | |
4723 | case IPR_PROTO_SATA_ATAPI: | |
4724 | case IPR_PROTO_SAS_STP_ATAPI: | |
4725 | ap->device[0].class = ATA_DEV_ATAPI; | |
4726 | break; | |
4727 | default: | |
4728 | ap->device[0].class = ATA_DEV_UNKNOWN; | |
4729 | ap->ops->port_disable(ap); | |
4730 | break; | |
4731 | }; | |
4732 | ||
4733 | out_unlock: | |
4734 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
4735 | LEAVE; | |
4736 | } | |
4737 | ||
4738 | /** | |
4739 | * ipr_ata_post_internal - Cleanup after an internal command | |
4740 | * @qc: ATA queued command | |
4741 | * | |
4742 | * Return value: | |
4743 | * none | |
4744 | **/ | |
4745 | static void ipr_ata_post_internal(struct ata_queued_cmd *qc) | |
4746 | { | |
4747 | struct ipr_sata_port *sata_port = qc->ap->private_data; | |
4748 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; | |
4749 | struct ipr_cmnd *ipr_cmd; | |
4750 | unsigned long flags; | |
4751 | ||
4752 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
73d98ff0 BK |
4753 | while(ioa_cfg->in_reset_reload) { |
4754 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
4755 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
4756 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
4757 | } | |
4758 | ||
35a39691 BK |
4759 | list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { |
4760 | if (ipr_cmd->qc == qc) { | |
4761 | ipr_device_reset(ioa_cfg, sata_port->res); | |
4762 | break; | |
4763 | } | |
4764 | } | |
4765 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
4766 | } | |
4767 | ||
4768 | /** | |
4769 | * ipr_tf_read - Read the current ATA taskfile for the ATA port | |
4770 | * @ap: ATA port | |
4771 | * @tf: destination ATA taskfile | |
4772 | * | |
4773 | * Return value: | |
4774 | * none | |
4775 | **/ | |
4776 | static void ipr_tf_read(struct ata_port *ap, struct ata_taskfile *tf) | |
4777 | { | |
4778 | struct ipr_sata_port *sata_port = ap->private_data; | |
4779 | struct ipr_ioasa_gata *g = &sata_port->ioasa; | |
4780 | ||
4781 | tf->feature = g->error; | |
4782 | tf->nsect = g->nsect; | |
4783 | tf->lbal = g->lbal; | |
4784 | tf->lbam = g->lbam; | |
4785 | tf->lbah = g->lbah; | |
4786 | tf->device = g->device; | |
4787 | tf->command = g->status; | |
4788 | tf->hob_nsect = g->hob_nsect; | |
4789 | tf->hob_lbal = g->hob_lbal; | |
4790 | tf->hob_lbam = g->hob_lbam; | |
4791 | tf->hob_lbah = g->hob_lbah; | |
4792 | tf->ctl = g->alt_status; | |
4793 | } | |
4794 | ||
4795 | /** | |
4796 | * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure | |
4797 | * @regs: destination | |
4798 | * @tf: source ATA taskfile | |
4799 | * | |
4800 | * Return value: | |
4801 | * none | |
4802 | **/ | |
4803 | static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs, | |
4804 | struct ata_taskfile *tf) | |
4805 | { | |
4806 | regs->feature = tf->feature; | |
4807 | regs->nsect = tf->nsect; | |
4808 | regs->lbal = tf->lbal; | |
4809 | regs->lbam = tf->lbam; | |
4810 | regs->lbah = tf->lbah; | |
4811 | regs->device = tf->device; | |
4812 | regs->command = tf->command; | |
4813 | regs->hob_feature = tf->hob_feature; | |
4814 | regs->hob_nsect = tf->hob_nsect; | |
4815 | regs->hob_lbal = tf->hob_lbal; | |
4816 | regs->hob_lbam = tf->hob_lbam; | |
4817 | regs->hob_lbah = tf->hob_lbah; | |
4818 | regs->ctl = tf->ctl; | |
4819 | } | |
4820 | ||
4821 | /** | |
4822 | * ipr_sata_done - done function for SATA commands | |
4823 | * @ipr_cmd: ipr command struct | |
4824 | * | |
4825 | * This function is invoked by the interrupt handler for | |
4826 | * ops generated by the SCSI mid-layer to SATA devices | |
4827 | * | |
4828 | * Return value: | |
4829 | * none | |
4830 | **/ | |
4831 | static void ipr_sata_done(struct ipr_cmnd *ipr_cmd) | |
4832 | { | |
4833 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4834 | struct ata_queued_cmd *qc = ipr_cmd->qc; | |
4835 | struct ipr_sata_port *sata_port = qc->ap->private_data; | |
4836 | struct ipr_resource_entry *res = sata_port->res; | |
4837 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
4838 | ||
4839 | memcpy(&sata_port->ioasa, &ipr_cmd->ioasa.u.gata, | |
4840 | sizeof(struct ipr_ioasa_gata)); | |
4841 | ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); | |
4842 | ||
4843 | if (be32_to_cpu(ipr_cmd->ioasa.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET) | |
4844 | scsi_report_device_reset(ioa_cfg->host, res->cfgte.res_addr.bus, | |
4845 | res->cfgte.res_addr.target); | |
4846 | ||
4847 | if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) | |
4848 | qc->err_mask |= __ac_err_mask(ipr_cmd->ioasa.u.gata.status); | |
4849 | else | |
4850 | qc->err_mask |= ac_err_mask(ipr_cmd->ioasa.u.gata.status); | |
4851 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4852 | ata_qc_complete(qc); | |
4853 | } | |
4854 | ||
4855 | /** | |
4856 | * ipr_build_ata_ioadl - Build an ATA scatter/gather list | |
4857 | * @ipr_cmd: ipr command struct | |
4858 | * @qc: ATA queued command | |
4859 | * | |
4860 | **/ | |
4861 | static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd, | |
4862 | struct ata_queued_cmd *qc) | |
4863 | { | |
4864 | u32 ioadl_flags = 0; | |
4865 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
4866 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
4867 | int len = qc->nbytes + qc->pad_len; | |
4868 | struct scatterlist *sg; | |
4869 | ||
4870 | if (len == 0) | |
4871 | return; | |
4872 | ||
4873 | if (qc->dma_dir == DMA_TO_DEVICE) { | |
4874 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; | |
4875 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
4876 | ioarcb->write_data_transfer_length = cpu_to_be32(len); | |
4877 | ioarcb->write_ioadl_len = | |
4878 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
4879 | } else if (qc->dma_dir == DMA_FROM_DEVICE) { | |
4880 | ioadl_flags = IPR_IOADL_FLAGS_READ; | |
4881 | ioarcb->read_data_transfer_length = cpu_to_be32(len); | |
4882 | ioarcb->read_ioadl_len = | |
4883 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
4884 | } | |
4885 | ||
4886 | ata_for_each_sg(sg, qc) { | |
4887 | ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg)); | |
4888 | ioadl->address = cpu_to_be32(sg_dma_address(sg)); | |
4889 | if (ata_sg_is_last(sg, qc)) | |
4890 | ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); | |
4891 | else | |
4892 | ioadl++; | |
4893 | } | |
4894 | } | |
4895 | ||
4896 | /** | |
4897 | * ipr_qc_issue - Issue a SATA qc to a device | |
4898 | * @qc: queued command | |
4899 | * | |
4900 | * Return value: | |
4901 | * 0 if success | |
4902 | **/ | |
4903 | static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc) | |
4904 | { | |
4905 | struct ata_port *ap = qc->ap; | |
4906 | struct ipr_sata_port *sata_port = ap->private_data; | |
4907 | struct ipr_resource_entry *res = sata_port->res; | |
4908 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; | |
4909 | struct ipr_cmnd *ipr_cmd; | |
4910 | struct ipr_ioarcb *ioarcb; | |
4911 | struct ipr_ioarcb_ata_regs *regs; | |
4912 | ||
4913 | if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead)) | |
4914 | return -EIO; | |
4915 | ||
4916 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
4917 | ioarcb = &ipr_cmd->ioarcb; | |
4918 | regs = &ioarcb->add_data.u.regs; | |
4919 | ||
4920 | memset(&ioarcb->add_data, 0, sizeof(ioarcb->add_data)); | |
4921 | ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(ioarcb->add_data.u.regs)); | |
4922 | ||
4923 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
4924 | ipr_cmd->qc = qc; | |
4925 | ipr_cmd->done = ipr_sata_done; | |
4926 | ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle; | |
4927 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU; | |
4928 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; | |
4929 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; | |
4930 | ipr_cmd->dma_use_sg = qc->pad_len ? qc->n_elem + 1 : qc->n_elem; | |
4931 | ||
4932 | ipr_build_ata_ioadl(ipr_cmd, qc); | |
4933 | regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; | |
4934 | ipr_copy_sata_tf(regs, &qc->tf); | |
4935 | memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN); | |
4936 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr)); | |
4937 | ||
4938 | switch (qc->tf.protocol) { | |
4939 | case ATA_PROT_NODATA: | |
4940 | case ATA_PROT_PIO: | |
4941 | break; | |
4942 | ||
4943 | case ATA_PROT_DMA: | |
4944 | regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; | |
4945 | break; | |
4946 | ||
4947 | case ATA_PROT_ATAPI: | |
4948 | case ATA_PROT_ATAPI_NODATA: | |
4949 | regs->flags |= IPR_ATA_FLAG_PACKET_CMD; | |
4950 | break; | |
4951 | ||
4952 | case ATA_PROT_ATAPI_DMA: | |
4953 | regs->flags |= IPR_ATA_FLAG_PACKET_CMD; | |
4954 | regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; | |
4955 | break; | |
4956 | ||
4957 | default: | |
4958 | WARN_ON(1); | |
4959 | return -1; | |
4960 | } | |
4961 | ||
4962 | mb(); | |
4963 | writel(be32_to_cpu(ioarcb->ioarcb_host_pci_addr), | |
4964 | ioa_cfg->regs.ioarrin_reg); | |
4965 | return 0; | |
4966 | } | |
4967 | ||
4968 | /** | |
4969 | * ipr_ata_check_status - Return last ATA status | |
4970 | * @ap: ATA port | |
4971 | * | |
4972 | * Return value: | |
4973 | * ATA status | |
4974 | **/ | |
4975 | static u8 ipr_ata_check_status(struct ata_port *ap) | |
4976 | { | |
4977 | struct ipr_sata_port *sata_port = ap->private_data; | |
4978 | return sata_port->ioasa.status; | |
4979 | } | |
4980 | ||
4981 | /** | |
4982 | * ipr_ata_check_altstatus - Return last ATA altstatus | |
4983 | * @ap: ATA port | |
4984 | * | |
4985 | * Return value: | |
4986 | * Alt ATA status | |
4987 | **/ | |
4988 | static u8 ipr_ata_check_altstatus(struct ata_port *ap) | |
4989 | { | |
4990 | struct ipr_sata_port *sata_port = ap->private_data; | |
4991 | return sata_port->ioasa.alt_status; | |
4992 | } | |
4993 | ||
4994 | static struct ata_port_operations ipr_sata_ops = { | |
4995 | .port_disable = ata_port_disable, | |
4996 | .check_status = ipr_ata_check_status, | |
4997 | .check_altstatus = ipr_ata_check_altstatus, | |
4998 | .dev_select = ata_noop_dev_select, | |
4999 | .phy_reset = ipr_ata_phy_reset, | |
5000 | .post_internal_cmd = ipr_ata_post_internal, | |
5001 | .tf_read = ipr_tf_read, | |
5002 | .qc_prep = ata_noop_qc_prep, | |
5003 | .qc_issue = ipr_qc_issue, | |
5004 | .port_start = ata_sas_port_start, | |
5005 | .port_stop = ata_sas_port_stop | |
5006 | }; | |
5007 | ||
5008 | static struct ata_port_info sata_port_info = { | |
5009 | .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET | | |
5010 | ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA, | |
5011 | .pio_mask = 0x10, /* pio4 */ | |
5012 | .mwdma_mask = 0x07, | |
5013 | .udma_mask = 0x7f, /* udma0-6 */ | |
5014 | .port_ops = &ipr_sata_ops | |
5015 | }; | |
5016 | ||
1da177e4 LT |
5017 | #ifdef CONFIG_PPC_PSERIES |
5018 | static const u16 ipr_blocked_processors[] = { | |
5019 | PV_NORTHSTAR, | |
5020 | PV_PULSAR, | |
5021 | PV_POWER4, | |
5022 | PV_ICESTAR, | |
5023 | PV_SSTAR, | |
5024 | PV_POWER4p, | |
5025 | PV_630, | |
5026 | PV_630p | |
5027 | }; | |
5028 | ||
5029 | /** | |
5030 | * ipr_invalid_adapter - Determine if this adapter is supported on this hardware | |
5031 | * @ioa_cfg: ioa cfg struct | |
5032 | * | |
5033 | * Adapters that use Gemstone revision < 3.1 do not work reliably on | |
5034 | * certain pSeries hardware. This function determines if the given | |
5035 | * adapter is in one of these confgurations or not. | |
5036 | * | |
5037 | * Return value: | |
5038 | * 1 if adapter is not supported / 0 if adapter is supported | |
5039 | **/ | |
5040 | static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) | |
5041 | { | |
5042 | u8 rev_id; | |
5043 | int i; | |
5044 | ||
5045 | if (ioa_cfg->type == 0x5702) { | |
5046 | if (pci_read_config_byte(ioa_cfg->pdev, PCI_REVISION_ID, | |
5047 | &rev_id) == PCIBIOS_SUCCESSFUL) { | |
5048 | if (rev_id < 4) { | |
5049 | for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){ | |
5050 | if (__is_processor(ipr_blocked_processors[i])) | |
5051 | return 1; | |
5052 | } | |
5053 | } | |
5054 | } | |
5055 | } | |
5056 | return 0; | |
5057 | } | |
5058 | #else | |
5059 | #define ipr_invalid_adapter(ioa_cfg) 0 | |
5060 | #endif | |
5061 | ||
5062 | /** | |
5063 | * ipr_ioa_bringdown_done - IOA bring down completion. | |
5064 | * @ipr_cmd: ipr command struct | |
5065 | * | |
5066 | * This function processes the completion of an adapter bring down. | |
5067 | * It wakes any reset sleepers. | |
5068 | * | |
5069 | * Return value: | |
5070 | * IPR_RC_JOB_RETURN | |
5071 | **/ | |
5072 | static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) | |
5073 | { | |
5074 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5075 | ||
5076 | ENTER; | |
5077 | ioa_cfg->in_reset_reload = 0; | |
5078 | ioa_cfg->reset_retries = 0; | |
5079 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
5080 | wake_up_all(&ioa_cfg->reset_wait_q); | |
5081 | ||
5082 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
5083 | scsi_unblock_requests(ioa_cfg->host); | |
5084 | spin_lock_irq(ioa_cfg->host->host_lock); | |
5085 | LEAVE; | |
5086 | ||
5087 | return IPR_RC_JOB_RETURN; | |
5088 | } | |
5089 | ||
5090 | /** | |
5091 | * ipr_ioa_reset_done - IOA reset completion. | |
5092 | * @ipr_cmd: ipr command struct | |
5093 | * | |
5094 | * This function processes the completion of an adapter reset. | |
5095 | * It schedules any necessary mid-layer add/removes and | |
5096 | * wakes any reset sleepers. | |
5097 | * | |
5098 | * Return value: | |
5099 | * IPR_RC_JOB_RETURN | |
5100 | **/ | |
5101 | static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) | |
5102 | { | |
5103 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5104 | struct ipr_resource_entry *res; | |
5105 | struct ipr_hostrcb *hostrcb, *temp; | |
5106 | int i = 0; | |
5107 | ||
5108 | ENTER; | |
5109 | ioa_cfg->in_reset_reload = 0; | |
5110 | ioa_cfg->allow_cmds = 1; | |
5111 | ioa_cfg->reset_cmd = NULL; | |
3d1d0da6 | 5112 | ioa_cfg->doorbell |= IPR_RUNTIME_RESET; |
1da177e4 LT |
5113 | |
5114 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
5115 | if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) { | |
5116 | ipr_trace; | |
5117 | break; | |
5118 | } | |
5119 | } | |
5120 | schedule_work(&ioa_cfg->work_q); | |
5121 | ||
5122 | list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) { | |
5123 | list_del(&hostrcb->queue); | |
5124 | if (i++ < IPR_NUM_LOG_HCAMS) | |
5125 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); | |
5126 | else | |
5127 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); | |
5128 | } | |
5129 | ||
5130 | dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n"); | |
5131 | ||
5132 | ioa_cfg->reset_retries = 0; | |
5133 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
5134 | wake_up_all(&ioa_cfg->reset_wait_q); | |
5135 | ||
5136 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
5137 | scsi_unblock_requests(ioa_cfg->host); | |
5138 | spin_lock_irq(ioa_cfg->host->host_lock); | |
5139 | ||
5140 | if (!ioa_cfg->allow_cmds) | |
5141 | scsi_block_requests(ioa_cfg->host); | |
5142 | ||
5143 | LEAVE; | |
5144 | return IPR_RC_JOB_RETURN; | |
5145 | } | |
5146 | ||
5147 | /** | |
5148 | * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer | |
5149 | * @supported_dev: supported device struct | |
5150 | * @vpids: vendor product id struct | |
5151 | * | |
5152 | * Return value: | |
5153 | * none | |
5154 | **/ | |
5155 | static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, | |
5156 | struct ipr_std_inq_vpids *vpids) | |
5157 | { | |
5158 | memset(supported_dev, 0, sizeof(struct ipr_supported_device)); | |
5159 | memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); | |
5160 | supported_dev->num_records = 1; | |
5161 | supported_dev->data_length = | |
5162 | cpu_to_be16(sizeof(struct ipr_supported_device)); | |
5163 | supported_dev->reserved = 0; | |
5164 | } | |
5165 | ||
5166 | /** | |
5167 | * ipr_set_supported_devs - Send Set Supported Devices for a device | |
5168 | * @ipr_cmd: ipr command struct | |
5169 | * | |
5170 | * This function send a Set Supported Devices to the adapter | |
5171 | * | |
5172 | * Return value: | |
5173 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5174 | **/ | |
5175 | static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) | |
5176 | { | |
5177 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5178 | struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; | |
5179 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
5180 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
5181 | struct ipr_resource_entry *res = ipr_cmd->u.res; | |
5182 | ||
5183 | ipr_cmd->job_step = ipr_ioa_reset_done; | |
5184 | ||
5185 | list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { | |
e4fbf44e | 5186 | if (!ipr_is_scsi_disk(res)) |
1da177e4 LT |
5187 | continue; |
5188 | ||
5189 | ipr_cmd->u.res = res; | |
5190 | ipr_set_sup_dev_dflt(supp_dev, &res->cfgte.std_inq_data.vpids); | |
5191 | ||
5192 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
5193 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
5194 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
5195 | ||
5196 | ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; | |
5197 | ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; | |
5198 | ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; | |
5199 | ||
5200 | ioadl->flags_and_data_len = cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | | |
5201 | sizeof(struct ipr_supported_device)); | |
5202 | ioadl->address = cpu_to_be32(ioa_cfg->vpd_cbs_dma + | |
5203 | offsetof(struct ipr_misc_cbs, supp_dev)); | |
5204 | ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
5205 | ioarcb->write_data_transfer_length = | |
5206 | cpu_to_be32(sizeof(struct ipr_supported_device)); | |
5207 | ||
5208 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, | |
5209 | IPR_SET_SUP_DEVICE_TIMEOUT); | |
5210 | ||
5211 | ipr_cmd->job_step = ipr_set_supported_devs; | |
5212 | return IPR_RC_JOB_RETURN; | |
5213 | } | |
5214 | ||
5215 | return IPR_RC_JOB_CONTINUE; | |
5216 | } | |
5217 | ||
62275040 | 5218 | /** |
5219 | * ipr_setup_write_cache - Disable write cache if needed | |
5220 | * @ipr_cmd: ipr command struct | |
5221 | * | |
5222 | * This function sets up adapters write cache to desired setting | |
5223 | * | |
5224 | * Return value: | |
5225 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5226 | **/ | |
5227 | static int ipr_setup_write_cache(struct ipr_cmnd *ipr_cmd) | |
5228 | { | |
5229 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5230 | ||
5231 | ipr_cmd->job_step = ipr_set_supported_devs; | |
5232 | ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, | |
5233 | struct ipr_resource_entry, queue); | |
5234 | ||
5235 | if (ioa_cfg->cache_state != CACHE_DISABLED) | |
5236 | return IPR_RC_JOB_CONTINUE; | |
5237 | ||
5238 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
5239 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
5240 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; | |
5241 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; | |
5242 | ||
5243 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
5244 | ||
5245 | return IPR_RC_JOB_RETURN; | |
5246 | } | |
5247 | ||
1da177e4 LT |
5248 | /** |
5249 | * ipr_get_mode_page - Locate specified mode page | |
5250 | * @mode_pages: mode page buffer | |
5251 | * @page_code: page code to find | |
5252 | * @len: minimum required length for mode page | |
5253 | * | |
5254 | * Return value: | |
5255 | * pointer to mode page / NULL on failure | |
5256 | **/ | |
5257 | static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, | |
5258 | u32 page_code, u32 len) | |
5259 | { | |
5260 | struct ipr_mode_page_hdr *mode_hdr; | |
5261 | u32 page_length; | |
5262 | u32 length; | |
5263 | ||
5264 | if (!mode_pages || (mode_pages->hdr.length == 0)) | |
5265 | return NULL; | |
5266 | ||
5267 | length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; | |
5268 | mode_hdr = (struct ipr_mode_page_hdr *) | |
5269 | (mode_pages->data + mode_pages->hdr.block_desc_len); | |
5270 | ||
5271 | while (length) { | |
5272 | if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { | |
5273 | if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) | |
5274 | return mode_hdr; | |
5275 | break; | |
5276 | } else { | |
5277 | page_length = (sizeof(struct ipr_mode_page_hdr) + | |
5278 | mode_hdr->page_length); | |
5279 | length -= page_length; | |
5280 | mode_hdr = (struct ipr_mode_page_hdr *) | |
5281 | ((unsigned long)mode_hdr + page_length); | |
5282 | } | |
5283 | } | |
5284 | return NULL; | |
5285 | } | |
5286 | ||
5287 | /** | |
5288 | * ipr_check_term_power - Check for term power errors | |
5289 | * @ioa_cfg: ioa config struct | |
5290 | * @mode_pages: IOAFP mode pages buffer | |
5291 | * | |
5292 | * Check the IOAFP's mode page 28 for term power errors | |
5293 | * | |
5294 | * Return value: | |
5295 | * nothing | |
5296 | **/ | |
5297 | static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, | |
5298 | struct ipr_mode_pages *mode_pages) | |
5299 | { | |
5300 | int i; | |
5301 | int entry_length; | |
5302 | struct ipr_dev_bus_entry *bus; | |
5303 | struct ipr_mode_page28 *mode_page; | |
5304 | ||
5305 | mode_page = ipr_get_mode_page(mode_pages, 0x28, | |
5306 | sizeof(struct ipr_mode_page28)); | |
5307 | ||
5308 | entry_length = mode_page->entry_length; | |
5309 | ||
5310 | bus = mode_page->bus; | |
5311 | ||
5312 | for (i = 0; i < mode_page->num_entries; i++) { | |
5313 | if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { | |
5314 | dev_err(&ioa_cfg->pdev->dev, | |
5315 | "Term power is absent on scsi bus %d\n", | |
5316 | bus->res_addr.bus); | |
5317 | } | |
5318 | ||
5319 | bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); | |
5320 | } | |
5321 | } | |
5322 | ||
5323 | /** | |
5324 | * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table | |
5325 | * @ioa_cfg: ioa config struct | |
5326 | * | |
5327 | * Looks through the config table checking for SES devices. If | |
5328 | * the SES device is in the SES table indicating a maximum SCSI | |
5329 | * bus speed, the speed is limited for the bus. | |
5330 | * | |
5331 | * Return value: | |
5332 | * none | |
5333 | **/ | |
5334 | static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) | |
5335 | { | |
5336 | u32 max_xfer_rate; | |
5337 | int i; | |
5338 | ||
5339 | for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { | |
5340 | max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i, | |
5341 | ioa_cfg->bus_attr[i].bus_width); | |
5342 | ||
5343 | if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) | |
5344 | ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; | |
5345 | } | |
5346 | } | |
5347 | ||
5348 | /** | |
5349 | * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 | |
5350 | * @ioa_cfg: ioa config struct | |
5351 | * @mode_pages: mode page 28 buffer | |
5352 | * | |
5353 | * Updates mode page 28 based on driver configuration | |
5354 | * | |
5355 | * Return value: | |
5356 | * none | |
5357 | **/ | |
5358 | static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, | |
5359 | struct ipr_mode_pages *mode_pages) | |
5360 | { | |
5361 | int i, entry_length; | |
5362 | struct ipr_dev_bus_entry *bus; | |
5363 | struct ipr_bus_attributes *bus_attr; | |
5364 | struct ipr_mode_page28 *mode_page; | |
5365 | ||
5366 | mode_page = ipr_get_mode_page(mode_pages, 0x28, | |
5367 | sizeof(struct ipr_mode_page28)); | |
5368 | ||
5369 | entry_length = mode_page->entry_length; | |
5370 | ||
5371 | /* Loop for each device bus entry */ | |
5372 | for (i = 0, bus = mode_page->bus; | |
5373 | i < mode_page->num_entries; | |
5374 | i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { | |
5375 | if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { | |
5376 | dev_err(&ioa_cfg->pdev->dev, | |
5377 | "Invalid resource address reported: 0x%08X\n", | |
5378 | IPR_GET_PHYS_LOC(bus->res_addr)); | |
5379 | continue; | |
5380 | } | |
5381 | ||
5382 | bus_attr = &ioa_cfg->bus_attr[i]; | |
5383 | bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; | |
5384 | bus->bus_width = bus_attr->bus_width; | |
5385 | bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); | |
5386 | bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; | |
5387 | if (bus_attr->qas_enabled) | |
5388 | bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; | |
5389 | else | |
5390 | bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; | |
5391 | } | |
5392 | } | |
5393 | ||
5394 | /** | |
5395 | * ipr_build_mode_select - Build a mode select command | |
5396 | * @ipr_cmd: ipr command struct | |
5397 | * @res_handle: resource handle to send command to | |
5398 | * @parm: Byte 2 of Mode Sense command | |
5399 | * @dma_addr: DMA buffer address | |
5400 | * @xfer_len: data transfer length | |
5401 | * | |
5402 | * Return value: | |
5403 | * none | |
5404 | **/ | |
5405 | static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, | |
5406 | __be32 res_handle, u8 parm, u32 dma_addr, | |
5407 | u8 xfer_len) | |
5408 | { | |
5409 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
5410 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
5411 | ||
5412 | ioarcb->res_handle = res_handle; | |
5413 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
5414 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
5415 | ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; | |
5416 | ioarcb->cmd_pkt.cdb[1] = parm; | |
5417 | ioarcb->cmd_pkt.cdb[4] = xfer_len; | |
5418 | ||
5419 | ioadl->flags_and_data_len = | |
5420 | cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | xfer_len); | |
5421 | ioadl->address = cpu_to_be32(dma_addr); | |
5422 | ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
5423 | ioarcb->write_data_transfer_length = cpu_to_be32(xfer_len); | |
5424 | } | |
5425 | ||
5426 | /** | |
5427 | * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA | |
5428 | * @ipr_cmd: ipr command struct | |
5429 | * | |
5430 | * This function sets up the SCSI bus attributes and sends | |
5431 | * a Mode Select for Page 28 to activate them. | |
5432 | * | |
5433 | * Return value: | |
5434 | * IPR_RC_JOB_RETURN | |
5435 | **/ | |
5436 | static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) | |
5437 | { | |
5438 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5439 | struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; | |
5440 | int length; | |
5441 | ||
5442 | ENTER; | |
4733804c BK |
5443 | ipr_scsi_bus_speed_limit(ioa_cfg); |
5444 | ipr_check_term_power(ioa_cfg, mode_pages); | |
5445 | ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); | |
5446 | length = mode_pages->hdr.length + 1; | |
5447 | mode_pages->hdr.length = 0; | |
1da177e4 LT |
5448 | |
5449 | ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, | |
5450 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), | |
5451 | length); | |
5452 | ||
62275040 | 5453 | ipr_cmd->job_step = ipr_setup_write_cache; |
1da177e4 LT |
5454 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); |
5455 | ||
5456 | LEAVE; | |
5457 | return IPR_RC_JOB_RETURN; | |
5458 | } | |
5459 | ||
5460 | /** | |
5461 | * ipr_build_mode_sense - Builds a mode sense command | |
5462 | * @ipr_cmd: ipr command struct | |
5463 | * @res: resource entry struct | |
5464 | * @parm: Byte 2 of mode sense command | |
5465 | * @dma_addr: DMA address of mode sense buffer | |
5466 | * @xfer_len: Size of DMA buffer | |
5467 | * | |
5468 | * Return value: | |
5469 | * none | |
5470 | **/ | |
5471 | static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, | |
5472 | __be32 res_handle, | |
5473 | u8 parm, u32 dma_addr, u8 xfer_len) | |
5474 | { | |
5475 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
5476 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
5477 | ||
5478 | ioarcb->res_handle = res_handle; | |
5479 | ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; | |
5480 | ioarcb->cmd_pkt.cdb[2] = parm; | |
5481 | ioarcb->cmd_pkt.cdb[4] = xfer_len; | |
5482 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
5483 | ||
5484 | ioadl->flags_and_data_len = | |
5485 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len); | |
5486 | ioadl->address = cpu_to_be32(dma_addr); | |
5487 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
5488 | ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len); | |
5489 | } | |
5490 | ||
dfed823e | 5491 | /** |
5492 | * ipr_reset_cmd_failed - Handle failure of IOA reset command | |
5493 | * @ipr_cmd: ipr command struct | |
5494 | * | |
5495 | * This function handles the failure of an IOA bringup command. | |
5496 | * | |
5497 | * Return value: | |
5498 | * IPR_RC_JOB_RETURN | |
5499 | **/ | |
5500 | static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) | |
5501 | { | |
5502 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5503 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
5504 | ||
5505 | dev_err(&ioa_cfg->pdev->dev, | |
5506 | "0x%02X failed with IOASC: 0x%08X\n", | |
5507 | ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); | |
5508 | ||
5509 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
5510 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
5511 | return IPR_RC_JOB_RETURN; | |
5512 | } | |
5513 | ||
5514 | /** | |
5515 | * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense | |
5516 | * @ipr_cmd: ipr command struct | |
5517 | * | |
5518 | * This function handles the failure of a Mode Sense to the IOAFP. | |
5519 | * Some adapters do not handle all mode pages. | |
5520 | * | |
5521 | * Return value: | |
5522 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5523 | **/ | |
5524 | static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) | |
5525 | { | |
5526 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
5527 | ||
5528 | if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { | |
5529 | ipr_cmd->job_step = ipr_setup_write_cache; | |
5530 | return IPR_RC_JOB_CONTINUE; | |
5531 | } | |
5532 | ||
5533 | return ipr_reset_cmd_failed(ipr_cmd); | |
5534 | } | |
5535 | ||
1da177e4 LT |
5536 | /** |
5537 | * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA | |
5538 | * @ipr_cmd: ipr command struct | |
5539 | * | |
5540 | * This function send a Page 28 mode sense to the IOA to | |
5541 | * retrieve SCSI bus attributes. | |
5542 | * | |
5543 | * Return value: | |
5544 | * IPR_RC_JOB_RETURN | |
5545 | **/ | |
5546 | static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) | |
5547 | { | |
5548 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5549 | ||
5550 | ENTER; | |
5551 | ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), | |
5552 | 0x28, ioa_cfg->vpd_cbs_dma + | |
5553 | offsetof(struct ipr_misc_cbs, mode_pages), | |
5554 | sizeof(struct ipr_mode_pages)); | |
5555 | ||
5556 | ipr_cmd->job_step = ipr_ioafp_mode_select_page28; | |
dfed823e | 5557 | ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; |
1da177e4 LT |
5558 | |
5559 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
5560 | ||
5561 | LEAVE; | |
5562 | return IPR_RC_JOB_RETURN; | |
5563 | } | |
5564 | ||
5565 | /** | |
5566 | * ipr_init_res_table - Initialize the resource table | |
5567 | * @ipr_cmd: ipr command struct | |
5568 | * | |
5569 | * This function looks through the existing resource table, comparing | |
5570 | * it with the config table. This function will take care of old/new | |
5571 | * devices and schedule adding/removing them from the mid-layer | |
5572 | * as appropriate. | |
5573 | * | |
5574 | * Return value: | |
5575 | * IPR_RC_JOB_CONTINUE | |
5576 | **/ | |
5577 | static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) | |
5578 | { | |
5579 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5580 | struct ipr_resource_entry *res, *temp; | |
5581 | struct ipr_config_table_entry *cfgte; | |
5582 | int found, i; | |
5583 | LIST_HEAD(old_res); | |
5584 | ||
5585 | ENTER; | |
5586 | if (ioa_cfg->cfg_table->hdr.flags & IPR_UCODE_DOWNLOAD_REQ) | |
5587 | dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n"); | |
5588 | ||
5589 | list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) | |
5590 | list_move_tail(&res->queue, &old_res); | |
5591 | ||
5592 | for (i = 0; i < ioa_cfg->cfg_table->hdr.num_entries; i++) { | |
5593 | cfgte = &ioa_cfg->cfg_table->dev[i]; | |
5594 | found = 0; | |
5595 | ||
5596 | list_for_each_entry_safe(res, temp, &old_res, queue) { | |
5597 | if (!memcmp(&res->cfgte.res_addr, | |
5598 | &cfgte->res_addr, sizeof(cfgte->res_addr))) { | |
5599 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); | |
5600 | found = 1; | |
5601 | break; | |
5602 | } | |
5603 | } | |
5604 | ||
5605 | if (!found) { | |
5606 | if (list_empty(&ioa_cfg->free_res_q)) { | |
5607 | dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n"); | |
5608 | break; | |
5609 | } | |
5610 | ||
5611 | found = 1; | |
5612 | res = list_entry(ioa_cfg->free_res_q.next, | |
5613 | struct ipr_resource_entry, queue); | |
5614 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); | |
5615 | ipr_init_res_entry(res); | |
5616 | res->add_to_ml = 1; | |
5617 | } | |
5618 | ||
5619 | if (found) | |
5620 | memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry)); | |
5621 | } | |
5622 | ||
5623 | list_for_each_entry_safe(res, temp, &old_res, queue) { | |
5624 | if (res->sdev) { | |
5625 | res->del_from_ml = 1; | |
1121b794 | 5626 | res->cfgte.res_handle = IPR_INVALID_RES_HANDLE; |
1da177e4 LT |
5627 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); |
5628 | } else { | |
5629 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); | |
5630 | } | |
5631 | } | |
5632 | ||
5633 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; | |
5634 | ||
5635 | LEAVE; | |
5636 | return IPR_RC_JOB_CONTINUE; | |
5637 | } | |
5638 | ||
5639 | /** | |
5640 | * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. | |
5641 | * @ipr_cmd: ipr command struct | |
5642 | * | |
5643 | * This function sends a Query IOA Configuration command | |
5644 | * to the adapter to retrieve the IOA configuration table. | |
5645 | * | |
5646 | * Return value: | |
5647 | * IPR_RC_JOB_RETURN | |
5648 | **/ | |
5649 | static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) | |
5650 | { | |
5651 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5652 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
5653 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
5654 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; | |
5655 | ||
5656 | ENTER; | |
5657 | dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", | |
5658 | ucode_vpd->major_release, ucode_vpd->card_type, | |
5659 | ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); | |
5660 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
5661 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
5662 | ||
5663 | ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; | |
5664 | ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_config_table) >> 8) & 0xff; | |
5665 | ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_config_table) & 0xff; | |
5666 | ||
5667 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
5668 | ioarcb->read_data_transfer_length = | |
5669 | cpu_to_be32(sizeof(struct ipr_config_table)); | |
5670 | ||
5671 | ioadl->address = cpu_to_be32(ioa_cfg->cfg_table_dma); | |
5672 | ioadl->flags_and_data_len = | |
5673 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(struct ipr_config_table)); | |
5674 | ||
5675 | ipr_cmd->job_step = ipr_init_res_table; | |
5676 | ||
5677 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
5678 | ||
5679 | LEAVE; | |
5680 | return IPR_RC_JOB_RETURN; | |
5681 | } | |
5682 | ||
5683 | /** | |
5684 | * ipr_ioafp_inquiry - Send an Inquiry to the adapter. | |
5685 | * @ipr_cmd: ipr command struct | |
5686 | * | |
5687 | * This utility function sends an inquiry to the adapter. | |
5688 | * | |
5689 | * Return value: | |
5690 | * none | |
5691 | **/ | |
5692 | static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, | |
5693 | u32 dma_addr, u8 xfer_len) | |
5694 | { | |
5695 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
5696 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
5697 | ||
5698 | ENTER; | |
5699 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
5700 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
5701 | ||
5702 | ioarcb->cmd_pkt.cdb[0] = INQUIRY; | |
5703 | ioarcb->cmd_pkt.cdb[1] = flags; | |
5704 | ioarcb->cmd_pkt.cdb[2] = page; | |
5705 | ioarcb->cmd_pkt.cdb[4] = xfer_len; | |
5706 | ||
5707 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
5708 | ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len); | |
5709 | ||
5710 | ioadl->address = cpu_to_be32(dma_addr); | |
5711 | ioadl->flags_and_data_len = | |
5712 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len); | |
5713 | ||
5714 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
5715 | LEAVE; | |
5716 | } | |
5717 | ||
62275040 | 5718 | /** |
5719 | * ipr_inquiry_page_supported - Is the given inquiry page supported | |
5720 | * @page0: inquiry page 0 buffer | |
5721 | * @page: page code. | |
5722 | * | |
5723 | * This function determines if the specified inquiry page is supported. | |
5724 | * | |
5725 | * Return value: | |
5726 | * 1 if page is supported / 0 if not | |
5727 | **/ | |
5728 | static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) | |
5729 | { | |
5730 | int i; | |
5731 | ||
5732 | for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) | |
5733 | if (page0->page[i] == page) | |
5734 | return 1; | |
5735 | ||
5736 | return 0; | |
5737 | } | |
5738 | ||
1da177e4 LT |
5739 | /** |
5740 | * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. | |
5741 | * @ipr_cmd: ipr command struct | |
5742 | * | |
5743 | * This function sends a Page 3 inquiry to the adapter | |
5744 | * to retrieve software VPD information. | |
5745 | * | |
5746 | * Return value: | |
5747 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5748 | **/ | |
5749 | static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) | |
62275040 | 5750 | { |
5751 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5752 | struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; | |
5753 | ||
5754 | ENTER; | |
5755 | ||
5756 | if (!ipr_inquiry_page_supported(page0, 1)) | |
5757 | ioa_cfg->cache_state = CACHE_NONE; | |
5758 | ||
5759 | ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; | |
5760 | ||
5761 | ipr_ioafp_inquiry(ipr_cmd, 1, 3, | |
5762 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), | |
5763 | sizeof(struct ipr_inquiry_page3)); | |
5764 | ||
5765 | LEAVE; | |
5766 | return IPR_RC_JOB_RETURN; | |
5767 | } | |
5768 | ||
5769 | /** | |
5770 | * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. | |
5771 | * @ipr_cmd: ipr command struct | |
5772 | * | |
5773 | * This function sends a Page 0 inquiry to the adapter | |
5774 | * to retrieve supported inquiry pages. | |
5775 | * | |
5776 | * Return value: | |
5777 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5778 | **/ | |
5779 | static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) | |
1da177e4 LT |
5780 | { |
5781 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5782 | char type[5]; | |
5783 | ||
5784 | ENTER; | |
5785 | ||
5786 | /* Grab the type out of the VPD and store it away */ | |
5787 | memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); | |
5788 | type[4] = '\0'; | |
5789 | ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); | |
5790 | ||
62275040 | 5791 | ipr_cmd->job_step = ipr_ioafp_page3_inquiry; |
1da177e4 | 5792 | |
62275040 | 5793 | ipr_ioafp_inquiry(ipr_cmd, 1, 0, |
5794 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), | |
5795 | sizeof(struct ipr_inquiry_page0)); | |
1da177e4 LT |
5796 | |
5797 | LEAVE; | |
5798 | return IPR_RC_JOB_RETURN; | |
5799 | } | |
5800 | ||
5801 | /** | |
5802 | * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. | |
5803 | * @ipr_cmd: ipr command struct | |
5804 | * | |
5805 | * This function sends a standard inquiry to the adapter. | |
5806 | * | |
5807 | * Return value: | |
5808 | * IPR_RC_JOB_RETURN | |
5809 | **/ | |
5810 | static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) | |
5811 | { | |
5812 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5813 | ||
5814 | ENTER; | |
62275040 | 5815 | ipr_cmd->job_step = ipr_ioafp_page0_inquiry; |
1da177e4 LT |
5816 | |
5817 | ipr_ioafp_inquiry(ipr_cmd, 0, 0, | |
5818 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), | |
5819 | sizeof(struct ipr_ioa_vpd)); | |
5820 | ||
5821 | LEAVE; | |
5822 | return IPR_RC_JOB_RETURN; | |
5823 | } | |
5824 | ||
5825 | /** | |
5826 | * ipr_ioafp_indentify_hrrq - Send Identify Host RRQ. | |
5827 | * @ipr_cmd: ipr command struct | |
5828 | * | |
5829 | * This function send an Identify Host Request Response Queue | |
5830 | * command to establish the HRRQ with the adapter. | |
5831 | * | |
5832 | * Return value: | |
5833 | * IPR_RC_JOB_RETURN | |
5834 | **/ | |
5835 | static int ipr_ioafp_indentify_hrrq(struct ipr_cmnd *ipr_cmd) | |
5836 | { | |
5837 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5838 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
5839 | ||
5840 | ENTER; | |
5841 | dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n"); | |
5842 | ||
5843 | ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; | |
5844 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
5845 | ||
5846 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
5847 | ioarcb->cmd_pkt.cdb[2] = | |
5848 | ((u32) ioa_cfg->host_rrq_dma >> 24) & 0xff; | |
5849 | ioarcb->cmd_pkt.cdb[3] = | |
5850 | ((u32) ioa_cfg->host_rrq_dma >> 16) & 0xff; | |
5851 | ioarcb->cmd_pkt.cdb[4] = | |
5852 | ((u32) ioa_cfg->host_rrq_dma >> 8) & 0xff; | |
5853 | ioarcb->cmd_pkt.cdb[5] = | |
5854 | ((u32) ioa_cfg->host_rrq_dma) & 0xff; | |
5855 | ioarcb->cmd_pkt.cdb[7] = | |
5856 | ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff; | |
5857 | ioarcb->cmd_pkt.cdb[8] = | |
5858 | (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff; | |
5859 | ||
5860 | ipr_cmd->job_step = ipr_ioafp_std_inquiry; | |
5861 | ||
5862 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
5863 | ||
5864 | LEAVE; | |
5865 | return IPR_RC_JOB_RETURN; | |
5866 | } | |
5867 | ||
5868 | /** | |
5869 | * ipr_reset_timer_done - Adapter reset timer function | |
5870 | * @ipr_cmd: ipr command struct | |
5871 | * | |
5872 | * Description: This function is used in adapter reset processing | |
5873 | * for timing events. If the reset_cmd pointer in the IOA | |
5874 | * config struct is not this adapter's we are doing nested | |
5875 | * resets and fail_all_ops will take care of freeing the | |
5876 | * command block. | |
5877 | * | |
5878 | * Return value: | |
5879 | * none | |
5880 | **/ | |
5881 | static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd) | |
5882 | { | |
5883 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5884 | unsigned long lock_flags = 0; | |
5885 | ||
5886 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
5887 | ||
5888 | if (ioa_cfg->reset_cmd == ipr_cmd) { | |
5889 | list_del(&ipr_cmd->queue); | |
5890 | ipr_cmd->done(ipr_cmd); | |
5891 | } | |
5892 | ||
5893 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
5894 | } | |
5895 | ||
5896 | /** | |
5897 | * ipr_reset_start_timer - Start a timer for adapter reset job | |
5898 | * @ipr_cmd: ipr command struct | |
5899 | * @timeout: timeout value | |
5900 | * | |
5901 | * Description: This function is used in adapter reset processing | |
5902 | * for timing events. If the reset_cmd pointer in the IOA | |
5903 | * config struct is not this adapter's we are doing nested | |
5904 | * resets and fail_all_ops will take care of freeing the | |
5905 | * command block. | |
5906 | * | |
5907 | * Return value: | |
5908 | * none | |
5909 | **/ | |
5910 | static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, | |
5911 | unsigned long timeout) | |
5912 | { | |
5913 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); | |
5914 | ipr_cmd->done = ipr_reset_ioa_job; | |
5915 | ||
5916 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; | |
5917 | ipr_cmd->timer.expires = jiffies + timeout; | |
5918 | ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done; | |
5919 | add_timer(&ipr_cmd->timer); | |
5920 | } | |
5921 | ||
5922 | /** | |
5923 | * ipr_init_ioa_mem - Initialize ioa_cfg control block | |
5924 | * @ioa_cfg: ioa cfg struct | |
5925 | * | |
5926 | * Return value: | |
5927 | * nothing | |
5928 | **/ | |
5929 | static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) | |
5930 | { | |
5931 | memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS); | |
5932 | ||
5933 | /* Initialize Host RRQ pointers */ | |
5934 | ioa_cfg->hrrq_start = ioa_cfg->host_rrq; | |
5935 | ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1]; | |
5936 | ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; | |
5937 | ioa_cfg->toggle_bit = 1; | |
5938 | ||
5939 | /* Zero out config table */ | |
5940 | memset(ioa_cfg->cfg_table, 0, sizeof(struct ipr_config_table)); | |
5941 | } | |
5942 | ||
5943 | /** | |
5944 | * ipr_reset_enable_ioa - Enable the IOA following a reset. | |
5945 | * @ipr_cmd: ipr command struct | |
5946 | * | |
5947 | * This function reinitializes some control blocks and | |
5948 | * enables destructive diagnostics on the adapter. | |
5949 | * | |
5950 | * Return value: | |
5951 | * IPR_RC_JOB_RETURN | |
5952 | **/ | |
5953 | static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) | |
5954 | { | |
5955 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5956 | volatile u32 int_reg; | |
5957 | ||
5958 | ENTER; | |
5959 | ipr_cmd->job_step = ipr_ioafp_indentify_hrrq; | |
5960 | ipr_init_ioa_mem(ioa_cfg); | |
5961 | ||
5962 | ioa_cfg->allow_interrupts = 1; | |
5963 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
5964 | ||
5965 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { | |
5966 | writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), | |
5967 | ioa_cfg->regs.clr_interrupt_mask_reg); | |
5968 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
5969 | return IPR_RC_JOB_CONTINUE; | |
5970 | } | |
5971 | ||
5972 | /* Enable destructive diagnostics on IOA */ | |
3d1d0da6 | 5973 | writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg); |
1da177e4 LT |
5974 | |
5975 | writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg); | |
5976 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
5977 | ||
5978 | dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n"); | |
5979 | ||
5980 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; | |
5981 | ipr_cmd->timer.expires = jiffies + (ipr_transop_timeout * HZ); | |
5982 | ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; | |
5983 | ipr_cmd->done = ipr_reset_ioa_job; | |
5984 | add_timer(&ipr_cmd->timer); | |
5985 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
5986 | ||
5987 | LEAVE; | |
5988 | return IPR_RC_JOB_RETURN; | |
5989 | } | |
5990 | ||
5991 | /** | |
5992 | * ipr_reset_wait_for_dump - Wait for a dump to timeout. | |
5993 | * @ipr_cmd: ipr command struct | |
5994 | * | |
5995 | * This function is invoked when an adapter dump has run out | |
5996 | * of processing time. | |
5997 | * | |
5998 | * Return value: | |
5999 | * IPR_RC_JOB_CONTINUE | |
6000 | **/ | |
6001 | static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) | |
6002 | { | |
6003 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6004 | ||
6005 | if (ioa_cfg->sdt_state == GET_DUMP) | |
6006 | ioa_cfg->sdt_state = ABORT_DUMP; | |
6007 | ||
6008 | ipr_cmd->job_step = ipr_reset_alert; | |
6009 | ||
6010 | return IPR_RC_JOB_CONTINUE; | |
6011 | } | |
6012 | ||
6013 | /** | |
6014 | * ipr_unit_check_no_data - Log a unit check/no data error log | |
6015 | * @ioa_cfg: ioa config struct | |
6016 | * | |
6017 | * Logs an error indicating the adapter unit checked, but for some | |
6018 | * reason, we were unable to fetch the unit check buffer. | |
6019 | * | |
6020 | * Return value: | |
6021 | * nothing | |
6022 | **/ | |
6023 | static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) | |
6024 | { | |
6025 | ioa_cfg->errors_logged++; | |
6026 | dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n"); | |
6027 | } | |
6028 | ||
6029 | /** | |
6030 | * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA | |
6031 | * @ioa_cfg: ioa config struct | |
6032 | * | |
6033 | * Fetches the unit check buffer from the adapter by clocking the data | |
6034 | * through the mailbox register. | |
6035 | * | |
6036 | * Return value: | |
6037 | * nothing | |
6038 | **/ | |
6039 | static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) | |
6040 | { | |
6041 | unsigned long mailbox; | |
6042 | struct ipr_hostrcb *hostrcb; | |
6043 | struct ipr_uc_sdt sdt; | |
6044 | int rc, length; | |
6045 | ||
6046 | mailbox = readl(ioa_cfg->ioa_mailbox); | |
6047 | ||
6048 | if (!ipr_sdt_is_fmt2(mailbox)) { | |
6049 | ipr_unit_check_no_data(ioa_cfg); | |
6050 | return; | |
6051 | } | |
6052 | ||
6053 | memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); | |
6054 | rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt, | |
6055 | (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); | |
6056 | ||
6057 | if (rc || (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE) || | |
6058 | !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY)) { | |
6059 | ipr_unit_check_no_data(ioa_cfg); | |
6060 | return; | |
6061 | } | |
6062 | ||
6063 | /* Find length of the first sdt entry (UC buffer) */ | |
6064 | length = (be32_to_cpu(sdt.entry[0].end_offset) - | |
6065 | be32_to_cpu(sdt.entry[0].bar_str_offset)) & IPR_FMT2_MBX_ADDR_MASK; | |
6066 | ||
6067 | hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, | |
6068 | struct ipr_hostrcb, queue); | |
6069 | list_del(&hostrcb->queue); | |
6070 | memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); | |
6071 | ||
6072 | rc = ipr_get_ldump_data_section(ioa_cfg, | |
6073 | be32_to_cpu(sdt.entry[0].bar_str_offset), | |
6074 | (__be32 *)&hostrcb->hcam, | |
6075 | min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); | |
6076 | ||
6077 | if (!rc) | |
6078 | ipr_handle_log_data(ioa_cfg, hostrcb); | |
6079 | else | |
6080 | ipr_unit_check_no_data(ioa_cfg); | |
6081 | ||
6082 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); | |
6083 | } | |
6084 | ||
6085 | /** | |
6086 | * ipr_reset_restore_cfg_space - Restore PCI config space. | |
6087 | * @ipr_cmd: ipr command struct | |
6088 | * | |
6089 | * Description: This function restores the saved PCI config space of | |
6090 | * the adapter, fails all outstanding ops back to the callers, and | |
6091 | * fetches the dump/unit check if applicable to this reset. | |
6092 | * | |
6093 | * Return value: | |
6094 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
6095 | **/ | |
6096 | static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) | |
6097 | { | |
6098 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6099 | int rc; | |
6100 | ||
6101 | ENTER; | |
b30197d2 | 6102 | pci_unblock_user_cfg_access(ioa_cfg->pdev); |
1da177e4 LT |
6103 | rc = pci_restore_state(ioa_cfg->pdev); |
6104 | ||
6105 | if (rc != PCIBIOS_SUCCESSFUL) { | |
6106 | ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); | |
6107 | return IPR_RC_JOB_CONTINUE; | |
6108 | } | |
6109 | ||
6110 | if (ipr_set_pcix_cmd_reg(ioa_cfg)) { | |
6111 | ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); | |
6112 | return IPR_RC_JOB_CONTINUE; | |
6113 | } | |
6114 | ||
6115 | ipr_fail_all_ops(ioa_cfg); | |
6116 | ||
6117 | if (ioa_cfg->ioa_unit_checked) { | |
6118 | ioa_cfg->ioa_unit_checked = 0; | |
6119 | ipr_get_unit_check_buffer(ioa_cfg); | |
6120 | ipr_cmd->job_step = ipr_reset_alert; | |
6121 | ipr_reset_start_timer(ipr_cmd, 0); | |
6122 | return IPR_RC_JOB_RETURN; | |
6123 | } | |
6124 | ||
6125 | if (ioa_cfg->in_ioa_bringdown) { | |
6126 | ipr_cmd->job_step = ipr_ioa_bringdown_done; | |
6127 | } else { | |
6128 | ipr_cmd->job_step = ipr_reset_enable_ioa; | |
6129 | ||
6130 | if (GET_DUMP == ioa_cfg->sdt_state) { | |
6131 | ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT); | |
6132 | ipr_cmd->job_step = ipr_reset_wait_for_dump; | |
6133 | schedule_work(&ioa_cfg->work_q); | |
6134 | return IPR_RC_JOB_RETURN; | |
6135 | } | |
6136 | } | |
6137 | ||
6138 | ENTER; | |
6139 | return IPR_RC_JOB_CONTINUE; | |
6140 | } | |
6141 | ||
6142 | /** | |
6143 | * ipr_reset_start_bist - Run BIST on the adapter. | |
6144 | * @ipr_cmd: ipr command struct | |
6145 | * | |
6146 | * Description: This function runs BIST on the adapter, then delays 2 seconds. | |
6147 | * | |
6148 | * Return value: | |
6149 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
6150 | **/ | |
6151 | static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) | |
6152 | { | |
6153 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6154 | int rc; | |
6155 | ||
6156 | ENTER; | |
b30197d2 | 6157 | pci_block_user_cfg_access(ioa_cfg->pdev); |
1da177e4 LT |
6158 | rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); |
6159 | ||
6160 | if (rc != PCIBIOS_SUCCESSFUL) { | |
6161 | ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); | |
6162 | rc = IPR_RC_JOB_CONTINUE; | |
6163 | } else { | |
6164 | ipr_cmd->job_step = ipr_reset_restore_cfg_space; | |
6165 | ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); | |
6166 | rc = IPR_RC_JOB_RETURN; | |
6167 | } | |
6168 | ||
6169 | LEAVE; | |
6170 | return rc; | |
6171 | } | |
6172 | ||
6173 | /** | |
6174 | * ipr_reset_allowed - Query whether or not IOA can be reset | |
6175 | * @ioa_cfg: ioa config struct | |
6176 | * | |
6177 | * Return value: | |
6178 | * 0 if reset not allowed / non-zero if reset is allowed | |
6179 | **/ | |
6180 | static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) | |
6181 | { | |
6182 | volatile u32 temp_reg; | |
6183 | ||
6184 | temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
6185 | return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); | |
6186 | } | |
6187 | ||
6188 | /** | |
6189 | * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. | |
6190 | * @ipr_cmd: ipr command struct | |
6191 | * | |
6192 | * Description: This function waits for adapter permission to run BIST, | |
6193 | * then runs BIST. If the adapter does not give permission after a | |
6194 | * reasonable time, we will reset the adapter anyway. The impact of | |
6195 | * resetting the adapter without warning the adapter is the risk of | |
6196 | * losing the persistent error log on the adapter. If the adapter is | |
6197 | * reset while it is writing to the flash on the adapter, the flash | |
6198 | * segment will have bad ECC and be zeroed. | |
6199 | * | |
6200 | * Return value: | |
6201 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
6202 | **/ | |
6203 | static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) | |
6204 | { | |
6205 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6206 | int rc = IPR_RC_JOB_RETURN; | |
6207 | ||
6208 | if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { | |
6209 | ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; | |
6210 | ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); | |
6211 | } else { | |
6212 | ipr_cmd->job_step = ipr_reset_start_bist; | |
6213 | rc = IPR_RC_JOB_CONTINUE; | |
6214 | } | |
6215 | ||
6216 | return rc; | |
6217 | } | |
6218 | ||
6219 | /** | |
6220 | * ipr_reset_alert_part2 - Alert the adapter of a pending reset | |
6221 | * @ipr_cmd: ipr command struct | |
6222 | * | |
6223 | * Description: This function alerts the adapter that it will be reset. | |
6224 | * If memory space is not currently enabled, proceed directly | |
6225 | * to running BIST on the adapter. The timer must always be started | |
6226 | * so we guarantee we do not run BIST from ipr_isr. | |
6227 | * | |
6228 | * Return value: | |
6229 | * IPR_RC_JOB_RETURN | |
6230 | **/ | |
6231 | static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) | |
6232 | { | |
6233 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6234 | u16 cmd_reg; | |
6235 | int rc; | |
6236 | ||
6237 | ENTER; | |
6238 | rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg); | |
6239 | ||
6240 | if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { | |
6241 | ipr_mask_and_clear_interrupts(ioa_cfg, ~0); | |
6242 | writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg); | |
6243 | ipr_cmd->job_step = ipr_reset_wait_to_start_bist; | |
6244 | } else { | |
6245 | ipr_cmd->job_step = ipr_reset_start_bist; | |
6246 | } | |
6247 | ||
6248 | ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; | |
6249 | ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); | |
6250 | ||
6251 | LEAVE; | |
6252 | return IPR_RC_JOB_RETURN; | |
6253 | } | |
6254 | ||
6255 | /** | |
6256 | * ipr_reset_ucode_download_done - Microcode download completion | |
6257 | * @ipr_cmd: ipr command struct | |
6258 | * | |
6259 | * Description: This function unmaps the microcode download buffer. | |
6260 | * | |
6261 | * Return value: | |
6262 | * IPR_RC_JOB_CONTINUE | |
6263 | **/ | |
6264 | static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) | |
6265 | { | |
6266 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6267 | struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; | |
6268 | ||
6269 | pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist, | |
6270 | sglist->num_sg, DMA_TO_DEVICE); | |
6271 | ||
6272 | ipr_cmd->job_step = ipr_reset_alert; | |
6273 | return IPR_RC_JOB_CONTINUE; | |
6274 | } | |
6275 | ||
6276 | /** | |
6277 | * ipr_reset_ucode_download - Download microcode to the adapter | |
6278 | * @ipr_cmd: ipr command struct | |
6279 | * | |
6280 | * Description: This function checks to see if it there is microcode | |
6281 | * to download to the adapter. If there is, a download is performed. | |
6282 | * | |
6283 | * Return value: | |
6284 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
6285 | **/ | |
6286 | static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) | |
6287 | { | |
6288 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6289 | struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; | |
6290 | ||
6291 | ENTER; | |
6292 | ipr_cmd->job_step = ipr_reset_alert; | |
6293 | ||
6294 | if (!sglist) | |
6295 | return IPR_RC_JOB_CONTINUE; | |
6296 | ||
6297 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
6298 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
6299 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; | |
6300 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; | |
6301 | ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; | |
6302 | ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; | |
6303 | ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; | |
6304 | ||
12baa420 | 6305 | ipr_build_ucode_ioadl(ipr_cmd, sglist); |
1da177e4 LT |
6306 | ipr_cmd->job_step = ipr_reset_ucode_download_done; |
6307 | ||
6308 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, | |
6309 | IPR_WRITE_BUFFER_TIMEOUT); | |
6310 | ||
6311 | LEAVE; | |
6312 | return IPR_RC_JOB_RETURN; | |
6313 | } | |
6314 | ||
6315 | /** | |
6316 | * ipr_reset_shutdown_ioa - Shutdown the adapter | |
6317 | * @ipr_cmd: ipr command struct | |
6318 | * | |
6319 | * Description: This function issues an adapter shutdown of the | |
6320 | * specified type to the specified adapter as part of the | |
6321 | * adapter reset job. | |
6322 | * | |
6323 | * Return value: | |
6324 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
6325 | **/ | |
6326 | static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) | |
6327 | { | |
6328 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6329 | enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; | |
6330 | unsigned long timeout; | |
6331 | int rc = IPR_RC_JOB_CONTINUE; | |
6332 | ||
6333 | ENTER; | |
6334 | if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) { | |
6335 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
6336 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
6337 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; | |
6338 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; | |
6339 | ||
6340 | if (shutdown_type == IPR_SHUTDOWN_ABBREV) | |
6341 | timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; | |
6342 | else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) | |
6343 | timeout = IPR_INTERNAL_TIMEOUT; | |
6344 | else | |
6345 | timeout = IPR_SHUTDOWN_TIMEOUT; | |
6346 | ||
6347 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); | |
6348 | ||
6349 | rc = IPR_RC_JOB_RETURN; | |
6350 | ipr_cmd->job_step = ipr_reset_ucode_download; | |
6351 | } else | |
6352 | ipr_cmd->job_step = ipr_reset_alert; | |
6353 | ||
6354 | LEAVE; | |
6355 | return rc; | |
6356 | } | |
6357 | ||
6358 | /** | |
6359 | * ipr_reset_ioa_job - Adapter reset job | |
6360 | * @ipr_cmd: ipr command struct | |
6361 | * | |
6362 | * Description: This function is the job router for the adapter reset job. | |
6363 | * | |
6364 | * Return value: | |
6365 | * none | |
6366 | **/ | |
6367 | static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) | |
6368 | { | |
6369 | u32 rc, ioasc; | |
1da177e4 LT |
6370 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
6371 | ||
6372 | do { | |
6373 | ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
6374 | ||
6375 | if (ioa_cfg->reset_cmd != ipr_cmd) { | |
6376 | /* | |
6377 | * We are doing nested adapter resets and this is | |
6378 | * not the current reset job. | |
6379 | */ | |
6380 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
6381 | return; | |
6382 | } | |
6383 | ||
6384 | if (IPR_IOASC_SENSE_KEY(ioasc)) { | |
dfed823e | 6385 | rc = ipr_cmd->job_step_failed(ipr_cmd); |
6386 | if (rc == IPR_RC_JOB_RETURN) | |
6387 | return; | |
1da177e4 LT |
6388 | } |
6389 | ||
6390 | ipr_reinit_ipr_cmnd(ipr_cmd); | |
dfed823e | 6391 | ipr_cmd->job_step_failed = ipr_reset_cmd_failed; |
1da177e4 LT |
6392 | rc = ipr_cmd->job_step(ipr_cmd); |
6393 | } while(rc == IPR_RC_JOB_CONTINUE); | |
6394 | } | |
6395 | ||
6396 | /** | |
6397 | * _ipr_initiate_ioa_reset - Initiate an adapter reset | |
6398 | * @ioa_cfg: ioa config struct | |
6399 | * @job_step: first job step of reset job | |
6400 | * @shutdown_type: shutdown type | |
6401 | * | |
6402 | * Description: This function will initiate the reset of the given adapter | |
6403 | * starting at the selected job step. | |
6404 | * If the caller needs to wait on the completion of the reset, | |
6405 | * the caller must sleep on the reset_wait_q. | |
6406 | * | |
6407 | * Return value: | |
6408 | * none | |
6409 | **/ | |
6410 | static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, | |
6411 | int (*job_step) (struct ipr_cmnd *), | |
6412 | enum ipr_shutdown_type shutdown_type) | |
6413 | { | |
6414 | struct ipr_cmnd *ipr_cmd; | |
6415 | ||
6416 | ioa_cfg->in_reset_reload = 1; | |
6417 | ioa_cfg->allow_cmds = 0; | |
6418 | scsi_block_requests(ioa_cfg->host); | |
6419 | ||
6420 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
6421 | ioa_cfg->reset_cmd = ipr_cmd; | |
6422 | ipr_cmd->job_step = job_step; | |
6423 | ipr_cmd->u.shutdown_type = shutdown_type; | |
6424 | ||
6425 | ipr_reset_ioa_job(ipr_cmd); | |
6426 | } | |
6427 | ||
6428 | /** | |
6429 | * ipr_initiate_ioa_reset - Initiate an adapter reset | |
6430 | * @ioa_cfg: ioa config struct | |
6431 | * @shutdown_type: shutdown type | |
6432 | * | |
6433 | * Description: This function will initiate the reset of the given adapter. | |
6434 | * If the caller needs to wait on the completion of the reset, | |
6435 | * the caller must sleep on the reset_wait_q. | |
6436 | * | |
6437 | * Return value: | |
6438 | * none | |
6439 | **/ | |
6440 | static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, | |
6441 | enum ipr_shutdown_type shutdown_type) | |
6442 | { | |
6443 | if (ioa_cfg->ioa_is_dead) | |
6444 | return; | |
6445 | ||
6446 | if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP) | |
6447 | ioa_cfg->sdt_state = ABORT_DUMP; | |
6448 | ||
6449 | if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { | |
6450 | dev_err(&ioa_cfg->pdev->dev, | |
6451 | "IOA taken offline - error recovery failed\n"); | |
6452 | ||
6453 | ioa_cfg->reset_retries = 0; | |
6454 | ioa_cfg->ioa_is_dead = 1; | |
6455 | ||
6456 | if (ioa_cfg->in_ioa_bringdown) { | |
6457 | ioa_cfg->reset_cmd = NULL; | |
6458 | ioa_cfg->in_reset_reload = 0; | |
6459 | ipr_fail_all_ops(ioa_cfg); | |
6460 | wake_up_all(&ioa_cfg->reset_wait_q); | |
6461 | ||
6462 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
6463 | scsi_unblock_requests(ioa_cfg->host); | |
6464 | spin_lock_irq(ioa_cfg->host->host_lock); | |
6465 | return; | |
6466 | } else { | |
6467 | ioa_cfg->in_ioa_bringdown = 1; | |
6468 | shutdown_type = IPR_SHUTDOWN_NONE; | |
6469 | } | |
6470 | } | |
6471 | ||
6472 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa, | |
6473 | shutdown_type); | |
6474 | } | |
6475 | ||
f8a88b19 LV |
6476 | /** |
6477 | * ipr_reset_freeze - Hold off all I/O activity | |
6478 | * @ipr_cmd: ipr command struct | |
6479 | * | |
6480 | * Description: If the PCI slot is frozen, hold off all I/O | |
6481 | * activity; then, as soon as the slot is available again, | |
6482 | * initiate an adapter reset. | |
6483 | */ | |
6484 | static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) | |
6485 | { | |
6486 | /* Disallow new interrupts, avoid loop */ | |
6487 | ipr_cmd->ioa_cfg->allow_interrupts = 0; | |
6488 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); | |
6489 | ipr_cmd->done = ipr_reset_ioa_job; | |
6490 | return IPR_RC_JOB_RETURN; | |
6491 | } | |
6492 | ||
6493 | /** | |
6494 | * ipr_pci_frozen - Called when slot has experienced a PCI bus error. | |
6495 | * @pdev: PCI device struct | |
6496 | * | |
6497 | * Description: This routine is called to tell us that the PCI bus | |
6498 | * is down. Can't do anything here, except put the device driver | |
6499 | * into a holding pattern, waiting for the PCI bus to come back. | |
6500 | */ | |
6501 | static void ipr_pci_frozen(struct pci_dev *pdev) | |
6502 | { | |
6503 | unsigned long flags = 0; | |
6504 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
6505 | ||
6506 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
6507 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE); | |
6508 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
6509 | } | |
6510 | ||
6511 | /** | |
6512 | * ipr_pci_slot_reset - Called when PCI slot has been reset. | |
6513 | * @pdev: PCI device struct | |
6514 | * | |
6515 | * Description: This routine is called by the pci error recovery | |
6516 | * code after the PCI slot has been reset, just before we | |
6517 | * should resume normal operations. | |
6518 | */ | |
6519 | static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) | |
6520 | { | |
6521 | unsigned long flags = 0; | |
6522 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
6523 | ||
6524 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
6525 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space, | |
6526 | IPR_SHUTDOWN_NONE); | |
6527 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
6528 | return PCI_ERS_RESULT_RECOVERED; | |
6529 | } | |
6530 | ||
6531 | /** | |
6532 | * ipr_pci_perm_failure - Called when PCI slot is dead for good. | |
6533 | * @pdev: PCI device struct | |
6534 | * | |
6535 | * Description: This routine is called when the PCI bus has | |
6536 | * permanently failed. | |
6537 | */ | |
6538 | static void ipr_pci_perm_failure(struct pci_dev *pdev) | |
6539 | { | |
6540 | unsigned long flags = 0; | |
6541 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
6542 | ||
6543 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
6544 | if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) | |
6545 | ioa_cfg->sdt_state = ABORT_DUMP; | |
6546 | ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES; | |
6547 | ioa_cfg->in_ioa_bringdown = 1; | |
6548 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
6549 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
6550 | } | |
6551 | ||
6552 | /** | |
6553 | * ipr_pci_error_detected - Called when a PCI error is detected. | |
6554 | * @pdev: PCI device struct | |
6555 | * @state: PCI channel state | |
6556 | * | |
6557 | * Description: Called when a PCI error is detected. | |
6558 | * | |
6559 | * Return value: | |
6560 | * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT | |
6561 | */ | |
6562 | static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, | |
6563 | pci_channel_state_t state) | |
6564 | { | |
6565 | switch (state) { | |
6566 | case pci_channel_io_frozen: | |
6567 | ipr_pci_frozen(pdev); | |
6568 | return PCI_ERS_RESULT_NEED_RESET; | |
6569 | case pci_channel_io_perm_failure: | |
6570 | ipr_pci_perm_failure(pdev); | |
6571 | return PCI_ERS_RESULT_DISCONNECT; | |
6572 | break; | |
6573 | default: | |
6574 | break; | |
6575 | } | |
6576 | return PCI_ERS_RESULT_NEED_RESET; | |
6577 | } | |
6578 | ||
1da177e4 LT |
6579 | /** |
6580 | * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) | |
6581 | * @ioa_cfg: ioa cfg struct | |
6582 | * | |
6583 | * Description: This is the second phase of adapter intialization | |
6584 | * This function takes care of initilizing the adapter to the point | |
6585 | * where it can accept new commands. | |
6586 | ||
6587 | * Return value: | |
6588 | * 0 on sucess / -EIO on failure | |
6589 | **/ | |
6590 | static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) | |
6591 | { | |
6592 | int rc = 0; | |
6593 | unsigned long host_lock_flags = 0; | |
6594 | ||
6595 | ENTER; | |
6596 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); | |
6597 | dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg); | |
ce155cce | 6598 | if (ioa_cfg->needs_hard_reset) { |
6599 | ioa_cfg->needs_hard_reset = 0; | |
6600 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
6601 | } else | |
6602 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, | |
6603 | IPR_SHUTDOWN_NONE); | |
1da177e4 LT |
6604 | |
6605 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
6606 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
6607 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); | |
6608 | ||
6609 | if (ioa_cfg->ioa_is_dead) { | |
6610 | rc = -EIO; | |
6611 | } else if (ipr_invalid_adapter(ioa_cfg)) { | |
6612 | if (!ipr_testmode) | |
6613 | rc = -EIO; | |
6614 | ||
6615 | dev_err(&ioa_cfg->pdev->dev, | |
6616 | "Adapter not supported in this hardware configuration.\n"); | |
6617 | } | |
6618 | ||
6619 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
6620 | ||
6621 | LEAVE; | |
6622 | return rc; | |
6623 | } | |
6624 | ||
6625 | /** | |
6626 | * ipr_free_cmd_blks - Frees command blocks allocated for an adapter | |
6627 | * @ioa_cfg: ioa config struct | |
6628 | * | |
6629 | * Return value: | |
6630 | * none | |
6631 | **/ | |
6632 | static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) | |
6633 | { | |
6634 | int i; | |
6635 | ||
6636 | for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { | |
6637 | if (ioa_cfg->ipr_cmnd_list[i]) | |
6638 | pci_pool_free(ioa_cfg->ipr_cmd_pool, | |
6639 | ioa_cfg->ipr_cmnd_list[i], | |
6640 | ioa_cfg->ipr_cmnd_list_dma[i]); | |
6641 | ||
6642 | ioa_cfg->ipr_cmnd_list[i] = NULL; | |
6643 | } | |
6644 | ||
6645 | if (ioa_cfg->ipr_cmd_pool) | |
6646 | pci_pool_destroy (ioa_cfg->ipr_cmd_pool); | |
6647 | ||
6648 | ioa_cfg->ipr_cmd_pool = NULL; | |
6649 | } | |
6650 | ||
6651 | /** | |
6652 | * ipr_free_mem - Frees memory allocated for an adapter | |
6653 | * @ioa_cfg: ioa cfg struct | |
6654 | * | |
6655 | * Return value: | |
6656 | * nothing | |
6657 | **/ | |
6658 | static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) | |
6659 | { | |
6660 | int i; | |
6661 | ||
6662 | kfree(ioa_cfg->res_entries); | |
6663 | pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs), | |
6664 | ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); | |
6665 | ipr_free_cmd_blks(ioa_cfg); | |
6666 | pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, | |
6667 | ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); | |
6668 | pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_config_table), | |
6669 | ioa_cfg->cfg_table, | |
6670 | ioa_cfg->cfg_table_dma); | |
6671 | ||
6672 | for (i = 0; i < IPR_NUM_HCAMS; i++) { | |
6673 | pci_free_consistent(ioa_cfg->pdev, | |
6674 | sizeof(struct ipr_hostrcb), | |
6675 | ioa_cfg->hostrcb[i], | |
6676 | ioa_cfg->hostrcb_dma[i]); | |
6677 | } | |
6678 | ||
6679 | ipr_free_dump(ioa_cfg); | |
1da177e4 LT |
6680 | kfree(ioa_cfg->trace); |
6681 | } | |
6682 | ||
6683 | /** | |
6684 | * ipr_free_all_resources - Free all allocated resources for an adapter. | |
6685 | * @ipr_cmd: ipr command struct | |
6686 | * | |
6687 | * This function frees all allocated resources for the | |
6688 | * specified adapter. | |
6689 | * | |
6690 | * Return value: | |
6691 | * none | |
6692 | **/ | |
6693 | static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) | |
6694 | { | |
6695 | struct pci_dev *pdev = ioa_cfg->pdev; | |
6696 | ||
6697 | ENTER; | |
6698 | free_irq(pdev->irq, ioa_cfg); | |
6699 | iounmap(ioa_cfg->hdw_dma_regs); | |
6700 | pci_release_regions(pdev); | |
6701 | ipr_free_mem(ioa_cfg); | |
6702 | scsi_host_put(ioa_cfg->host); | |
6703 | pci_disable_device(pdev); | |
6704 | LEAVE; | |
6705 | } | |
6706 | ||
6707 | /** | |
6708 | * ipr_alloc_cmd_blks - Allocate command blocks for an adapter | |
6709 | * @ioa_cfg: ioa config struct | |
6710 | * | |
6711 | * Return value: | |
6712 | * 0 on success / -ENOMEM on allocation failure | |
6713 | **/ | |
6714 | static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) | |
6715 | { | |
6716 | struct ipr_cmnd *ipr_cmd; | |
6717 | struct ipr_ioarcb *ioarcb; | |
6718 | dma_addr_t dma_addr; | |
6719 | int i; | |
6720 | ||
6721 | ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev, | |
6722 | sizeof(struct ipr_cmnd), 8, 0); | |
6723 | ||
6724 | if (!ioa_cfg->ipr_cmd_pool) | |
6725 | return -ENOMEM; | |
6726 | ||
6727 | for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { | |
6728 | ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, SLAB_KERNEL, &dma_addr); | |
6729 | ||
6730 | if (!ipr_cmd) { | |
6731 | ipr_free_cmd_blks(ioa_cfg); | |
6732 | return -ENOMEM; | |
6733 | } | |
6734 | ||
6735 | memset(ipr_cmd, 0, sizeof(*ipr_cmd)); | |
6736 | ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; | |
6737 | ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; | |
6738 | ||
6739 | ioarcb = &ipr_cmd->ioarcb; | |
6740 | ioarcb->ioarcb_host_pci_addr = cpu_to_be32(dma_addr); | |
6741 | ioarcb->host_response_handle = cpu_to_be32(i << 2); | |
6742 | ioarcb->write_ioadl_addr = | |
6743 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl)); | |
6744 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; | |
6745 | ioarcb->ioasa_host_pci_addr = | |
6746 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa)); | |
6747 | ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); | |
6748 | ipr_cmd->cmd_index = i; | |
6749 | ipr_cmd->ioa_cfg = ioa_cfg; | |
6750 | ipr_cmd->sense_buffer_dma = dma_addr + | |
6751 | offsetof(struct ipr_cmnd, sense_buffer); | |
6752 | ||
6753 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
6754 | } | |
6755 | ||
6756 | return 0; | |
6757 | } | |
6758 | ||
6759 | /** | |
6760 | * ipr_alloc_mem - Allocate memory for an adapter | |
6761 | * @ioa_cfg: ioa config struct | |
6762 | * | |
6763 | * Return value: | |
6764 | * 0 on success / non-zero for error | |
6765 | **/ | |
6766 | static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) | |
6767 | { | |
6768 | struct pci_dev *pdev = ioa_cfg->pdev; | |
6769 | int i, rc = -ENOMEM; | |
6770 | ||
6771 | ENTER; | |
0bc42e35 | 6772 | ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) * |
1da177e4 LT |
6773 | IPR_MAX_PHYSICAL_DEVS, GFP_KERNEL); |
6774 | ||
6775 | if (!ioa_cfg->res_entries) | |
6776 | goto out; | |
6777 | ||
1da177e4 LT |
6778 | for (i = 0; i < IPR_MAX_PHYSICAL_DEVS; i++) |
6779 | list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); | |
6780 | ||
6781 | ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev, | |
6782 | sizeof(struct ipr_misc_cbs), | |
6783 | &ioa_cfg->vpd_cbs_dma); | |
6784 | ||
6785 | if (!ioa_cfg->vpd_cbs) | |
6786 | goto out_free_res_entries; | |
6787 | ||
6788 | if (ipr_alloc_cmd_blks(ioa_cfg)) | |
6789 | goto out_free_vpd_cbs; | |
6790 | ||
6791 | ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev, | |
6792 | sizeof(u32) * IPR_NUM_CMD_BLKS, | |
6793 | &ioa_cfg->host_rrq_dma); | |
6794 | ||
6795 | if (!ioa_cfg->host_rrq) | |
6796 | goto out_ipr_free_cmd_blocks; | |
6797 | ||
6798 | ioa_cfg->cfg_table = pci_alloc_consistent(ioa_cfg->pdev, | |
6799 | sizeof(struct ipr_config_table), | |
6800 | &ioa_cfg->cfg_table_dma); | |
6801 | ||
6802 | if (!ioa_cfg->cfg_table) | |
6803 | goto out_free_host_rrq; | |
6804 | ||
6805 | for (i = 0; i < IPR_NUM_HCAMS; i++) { | |
6806 | ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev, | |
6807 | sizeof(struct ipr_hostrcb), | |
6808 | &ioa_cfg->hostrcb_dma[i]); | |
6809 | ||
6810 | if (!ioa_cfg->hostrcb[i]) | |
6811 | goto out_free_hostrcb_dma; | |
6812 | ||
6813 | ioa_cfg->hostrcb[i]->hostrcb_dma = | |
6814 | ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); | |
6815 | list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q); | |
6816 | } | |
6817 | ||
0bc42e35 | 6818 | ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) * |
1da177e4 LT |
6819 | IPR_NUM_TRACE_ENTRIES, GFP_KERNEL); |
6820 | ||
6821 | if (!ioa_cfg->trace) | |
6822 | goto out_free_hostrcb_dma; | |
6823 | ||
1da177e4 LT |
6824 | rc = 0; |
6825 | out: | |
6826 | LEAVE; | |
6827 | return rc; | |
6828 | ||
6829 | out_free_hostrcb_dma: | |
6830 | while (i-- > 0) { | |
6831 | pci_free_consistent(pdev, sizeof(struct ipr_hostrcb), | |
6832 | ioa_cfg->hostrcb[i], | |
6833 | ioa_cfg->hostrcb_dma[i]); | |
6834 | } | |
6835 | pci_free_consistent(pdev, sizeof(struct ipr_config_table), | |
6836 | ioa_cfg->cfg_table, ioa_cfg->cfg_table_dma); | |
6837 | out_free_host_rrq: | |
6838 | pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, | |
6839 | ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); | |
6840 | out_ipr_free_cmd_blocks: | |
6841 | ipr_free_cmd_blks(ioa_cfg); | |
6842 | out_free_vpd_cbs: | |
6843 | pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs), | |
6844 | ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); | |
6845 | out_free_res_entries: | |
6846 | kfree(ioa_cfg->res_entries); | |
6847 | goto out; | |
6848 | } | |
6849 | ||
6850 | /** | |
6851 | * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values | |
6852 | * @ioa_cfg: ioa config struct | |
6853 | * | |
6854 | * Return value: | |
6855 | * none | |
6856 | **/ | |
6857 | static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) | |
6858 | { | |
6859 | int i; | |
6860 | ||
6861 | for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { | |
6862 | ioa_cfg->bus_attr[i].bus = i; | |
6863 | ioa_cfg->bus_attr[i].qas_enabled = 0; | |
6864 | ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; | |
6865 | if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) | |
6866 | ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; | |
6867 | else | |
6868 | ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; | |
6869 | } | |
6870 | } | |
6871 | ||
6872 | /** | |
6873 | * ipr_init_ioa_cfg - Initialize IOA config struct | |
6874 | * @ioa_cfg: ioa config struct | |
6875 | * @host: scsi host struct | |
6876 | * @pdev: PCI dev struct | |
6877 | * | |
6878 | * Return value: | |
6879 | * none | |
6880 | **/ | |
6881 | static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, | |
6882 | struct Scsi_Host *host, struct pci_dev *pdev) | |
6883 | { | |
6884 | const struct ipr_interrupt_offsets *p; | |
6885 | struct ipr_interrupts *t; | |
6886 | void __iomem *base; | |
6887 | ||
6888 | ioa_cfg->host = host; | |
6889 | ioa_cfg->pdev = pdev; | |
6890 | ioa_cfg->log_level = ipr_log_level; | |
3d1d0da6 | 6891 | ioa_cfg->doorbell = IPR_DOORBELL; |
32d29776 | 6892 | if (!ipr_auto_create) |
6893 | ioa_cfg->doorbell |= IPR_RUNTIME_RESET; | |
1da177e4 LT |
6894 | sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER); |
6895 | sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL); | |
6896 | sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL); | |
6897 | sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL); | |
6898 | sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); | |
6899 | sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); | |
6900 | sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); | |
6901 | sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); | |
6902 | ||
6903 | INIT_LIST_HEAD(&ioa_cfg->free_q); | |
6904 | INIT_LIST_HEAD(&ioa_cfg->pending_q); | |
6905 | INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q); | |
6906 | INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q); | |
6907 | INIT_LIST_HEAD(&ioa_cfg->free_res_q); | |
6908 | INIT_LIST_HEAD(&ioa_cfg->used_res_q); | |
6909 | INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread, ioa_cfg); | |
6910 | init_waitqueue_head(&ioa_cfg->reset_wait_q); | |
6911 | ioa_cfg->sdt_state = INACTIVE; | |
62275040 | 6912 | if (ipr_enable_cache) |
6913 | ioa_cfg->cache_state = CACHE_ENABLED; | |
6914 | else | |
6915 | ioa_cfg->cache_state = CACHE_DISABLED; | |
1da177e4 LT |
6916 | |
6917 | ipr_initialize_bus_attr(ioa_cfg); | |
6918 | ||
6919 | host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; | |
6920 | host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; | |
6921 | host->max_channel = IPR_MAX_BUS_TO_SCAN; | |
6922 | host->unique_id = host->host_no; | |
6923 | host->max_cmd_len = IPR_MAX_CDB_LEN; | |
6924 | pci_set_drvdata(pdev, ioa_cfg); | |
6925 | ||
6926 | p = &ioa_cfg->chip_cfg->regs; | |
6927 | t = &ioa_cfg->regs; | |
6928 | base = ioa_cfg->hdw_dma_regs; | |
6929 | ||
6930 | t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; | |
6931 | t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; | |
6932 | t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; | |
6933 | t->clr_interrupt_reg = base + p->clr_interrupt_reg; | |
6934 | t->sense_interrupt_reg = base + p->sense_interrupt_reg; | |
6935 | t->ioarrin_reg = base + p->ioarrin_reg; | |
6936 | t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; | |
6937 | t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; | |
6938 | t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; | |
6939 | } | |
6940 | ||
6941 | /** | |
6942 | * ipr_get_chip_cfg - Find adapter chip configuration | |
6943 | * @dev_id: PCI device id struct | |
6944 | * | |
6945 | * Return value: | |
6946 | * ptr to chip config on success / NULL on failure | |
6947 | **/ | |
6948 | static const struct ipr_chip_cfg_t * __devinit | |
6949 | ipr_get_chip_cfg(const struct pci_device_id *dev_id) | |
6950 | { | |
6951 | int i; | |
6952 | ||
6953 | if (dev_id->driver_data) | |
6954 | return (const struct ipr_chip_cfg_t *)dev_id->driver_data; | |
6955 | ||
6956 | for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) | |
6957 | if (ipr_chip[i].vendor == dev_id->vendor && | |
6958 | ipr_chip[i].device == dev_id->device) | |
6959 | return ipr_chip[i].cfg; | |
6960 | return NULL; | |
6961 | } | |
6962 | ||
6963 | /** | |
6964 | * ipr_probe_ioa - Allocates memory and does first stage of initialization | |
6965 | * @pdev: PCI device struct | |
6966 | * @dev_id: PCI device id struct | |
6967 | * | |
6968 | * Return value: | |
6969 | * 0 on success / non-zero on failure | |
6970 | **/ | |
6971 | static int __devinit ipr_probe_ioa(struct pci_dev *pdev, | |
6972 | const struct pci_device_id *dev_id) | |
6973 | { | |
6974 | struct ipr_ioa_cfg *ioa_cfg; | |
6975 | struct Scsi_Host *host; | |
6976 | unsigned long ipr_regs_pci; | |
6977 | void __iomem *ipr_regs; | |
a2a65a3e | 6978 | int rc = PCIBIOS_SUCCESSFUL; |
ce155cce | 6979 | volatile u32 mask, uproc; |
1da177e4 LT |
6980 | |
6981 | ENTER; | |
6982 | ||
6983 | if ((rc = pci_enable_device(pdev))) { | |
6984 | dev_err(&pdev->dev, "Cannot enable adapter\n"); | |
6985 | goto out; | |
6986 | } | |
6987 | ||
6988 | dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq); | |
6989 | ||
6990 | host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); | |
6991 | ||
6992 | if (!host) { | |
6993 | dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n"); | |
6994 | rc = -ENOMEM; | |
6995 | goto out_disable; | |
6996 | } | |
6997 | ||
6998 | ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; | |
6999 | memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); | |
35a39691 BK |
7000 | ata_host_init(&ioa_cfg->ata_host, &pdev->dev, |
7001 | sata_port_info.flags, &ipr_sata_ops); | |
1da177e4 LT |
7002 | |
7003 | ioa_cfg->chip_cfg = ipr_get_chip_cfg(dev_id); | |
7004 | ||
7005 | if (!ioa_cfg->chip_cfg) { | |
7006 | dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n", | |
7007 | dev_id->vendor, dev_id->device); | |
7008 | goto out_scsi_host_put; | |
7009 | } | |
7010 | ||
7011 | ipr_regs_pci = pci_resource_start(pdev, 0); | |
7012 | ||
7013 | rc = pci_request_regions(pdev, IPR_NAME); | |
7014 | if (rc < 0) { | |
7015 | dev_err(&pdev->dev, | |
7016 | "Couldn't register memory range of registers\n"); | |
7017 | goto out_scsi_host_put; | |
7018 | } | |
7019 | ||
7020 | ipr_regs = ioremap(ipr_regs_pci, pci_resource_len(pdev, 0)); | |
7021 | ||
7022 | if (!ipr_regs) { | |
7023 | dev_err(&pdev->dev, | |
7024 | "Couldn't map memory range of registers\n"); | |
7025 | rc = -ENOMEM; | |
7026 | goto out_release_regions; | |
7027 | } | |
7028 | ||
7029 | ioa_cfg->hdw_dma_regs = ipr_regs; | |
7030 | ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; | |
7031 | ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; | |
7032 | ||
7033 | ipr_init_ioa_cfg(ioa_cfg, host, pdev); | |
7034 | ||
7035 | pci_set_master(pdev); | |
7036 | ||
7037 | rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | |
7038 | if (rc < 0) { | |
7039 | dev_err(&pdev->dev, "Failed to set PCI DMA mask\n"); | |
7040 | goto cleanup_nomem; | |
7041 | } | |
7042 | ||
7043 | rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, | |
7044 | ioa_cfg->chip_cfg->cache_line_size); | |
7045 | ||
7046 | if (rc != PCIBIOS_SUCCESSFUL) { | |
7047 | dev_err(&pdev->dev, "Write of cache line size failed\n"); | |
7048 | rc = -EIO; | |
7049 | goto cleanup_nomem; | |
7050 | } | |
7051 | ||
7052 | /* Save away PCI config space for use following IOA reset */ | |
7053 | rc = pci_save_state(pdev); | |
7054 | ||
7055 | if (rc != PCIBIOS_SUCCESSFUL) { | |
7056 | dev_err(&pdev->dev, "Failed to save PCI config space\n"); | |
7057 | rc = -EIO; | |
7058 | goto cleanup_nomem; | |
7059 | } | |
7060 | ||
7061 | if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) | |
7062 | goto cleanup_nomem; | |
7063 | ||
7064 | if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) | |
7065 | goto cleanup_nomem; | |
7066 | ||
7067 | rc = ipr_alloc_mem(ioa_cfg); | |
7068 | if (rc < 0) { | |
7069 | dev_err(&pdev->dev, | |
7070 | "Couldn't allocate enough memory for device driver!\n"); | |
7071 | goto cleanup_nomem; | |
7072 | } | |
7073 | ||
ce155cce | 7074 | /* |
7075 | * If HRRQ updated interrupt is not masked, or reset alert is set, | |
7076 | * the card is in an unknown state and needs a hard reset | |
7077 | */ | |
7078 | mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
7079 | uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg); | |
7080 | if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) | |
7081 | ioa_cfg->needs_hard_reset = 1; | |
7082 | ||
1da177e4 | 7083 | ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); |
1d6f359a | 7084 | rc = request_irq(pdev->irq, ipr_isr, IRQF_SHARED, IPR_NAME, ioa_cfg); |
1da177e4 LT |
7085 | |
7086 | if (rc) { | |
7087 | dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n", | |
7088 | pdev->irq, rc); | |
7089 | goto cleanup_nolog; | |
7090 | } | |
7091 | ||
7092 | spin_lock(&ipr_driver_lock); | |
7093 | list_add_tail(&ioa_cfg->queue, &ipr_ioa_head); | |
7094 | spin_unlock(&ipr_driver_lock); | |
7095 | ||
7096 | LEAVE; | |
7097 | out: | |
7098 | return rc; | |
7099 | ||
7100 | cleanup_nolog: | |
7101 | ipr_free_mem(ioa_cfg); | |
7102 | cleanup_nomem: | |
7103 | iounmap(ipr_regs); | |
7104 | out_release_regions: | |
7105 | pci_release_regions(pdev); | |
7106 | out_scsi_host_put: | |
7107 | scsi_host_put(host); | |
7108 | out_disable: | |
7109 | pci_disable_device(pdev); | |
7110 | goto out; | |
7111 | } | |
7112 | ||
7113 | /** | |
7114 | * ipr_scan_vsets - Scans for VSET devices | |
7115 | * @ioa_cfg: ioa config struct | |
7116 | * | |
7117 | * Description: Since the VSET resources do not follow SAM in that we can have | |
7118 | * sparse LUNs with no LUN 0, we have to scan for these ourselves. | |
7119 | * | |
7120 | * Return value: | |
7121 | * none | |
7122 | **/ | |
7123 | static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg) | |
7124 | { | |
7125 | int target, lun; | |
7126 | ||
7127 | for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++) | |
7128 | for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ ) | |
7129 | scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun); | |
7130 | } | |
7131 | ||
7132 | /** | |
7133 | * ipr_initiate_ioa_bringdown - Bring down an adapter | |
7134 | * @ioa_cfg: ioa config struct | |
7135 | * @shutdown_type: shutdown type | |
7136 | * | |
7137 | * Description: This function will initiate bringing down the adapter. | |
7138 | * This consists of issuing an IOA shutdown to the adapter | |
7139 | * to flush the cache, and running BIST. | |
7140 | * If the caller needs to wait on the completion of the reset, | |
7141 | * the caller must sleep on the reset_wait_q. | |
7142 | * | |
7143 | * Return value: | |
7144 | * none | |
7145 | **/ | |
7146 | static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, | |
7147 | enum ipr_shutdown_type shutdown_type) | |
7148 | { | |
7149 | ENTER; | |
7150 | if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) | |
7151 | ioa_cfg->sdt_state = ABORT_DUMP; | |
7152 | ioa_cfg->reset_retries = 0; | |
7153 | ioa_cfg->in_ioa_bringdown = 1; | |
7154 | ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); | |
7155 | LEAVE; | |
7156 | } | |
7157 | ||
7158 | /** | |
7159 | * __ipr_remove - Remove a single adapter | |
7160 | * @pdev: pci device struct | |
7161 | * | |
7162 | * Adapter hot plug remove entry point. | |
7163 | * | |
7164 | * Return value: | |
7165 | * none | |
7166 | **/ | |
7167 | static void __ipr_remove(struct pci_dev *pdev) | |
7168 | { | |
7169 | unsigned long host_lock_flags = 0; | |
7170 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
7171 | ENTER; | |
7172 | ||
7173 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); | |
7174 | ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
7175 | ||
7176 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
7177 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
5cbf5eae | 7178 | flush_scheduled_work(); |
1da177e4 LT |
7179 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); |
7180 | ||
7181 | spin_lock(&ipr_driver_lock); | |
7182 | list_del(&ioa_cfg->queue); | |
7183 | spin_unlock(&ipr_driver_lock); | |
7184 | ||
7185 | if (ioa_cfg->sdt_state == ABORT_DUMP) | |
7186 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; | |
7187 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
7188 | ||
7189 | ipr_free_all_resources(ioa_cfg); | |
7190 | ||
7191 | LEAVE; | |
7192 | } | |
7193 | ||
7194 | /** | |
7195 | * ipr_remove - IOA hot plug remove entry point | |
7196 | * @pdev: pci device struct | |
7197 | * | |
7198 | * Adapter hot plug remove entry point. | |
7199 | * | |
7200 | * Return value: | |
7201 | * none | |
7202 | **/ | |
7203 | static void ipr_remove(struct pci_dev *pdev) | |
7204 | { | |
7205 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
7206 | ||
7207 | ENTER; | |
7208 | ||
1da177e4 LT |
7209 | ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj, |
7210 | &ipr_trace_attr); | |
7211 | ipr_remove_dump_file(&ioa_cfg->host->shost_classdev.kobj, | |
7212 | &ipr_dump_attr); | |
7213 | scsi_remove_host(ioa_cfg->host); | |
7214 | ||
7215 | __ipr_remove(pdev); | |
7216 | ||
7217 | LEAVE; | |
7218 | } | |
7219 | ||
7220 | /** | |
7221 | * ipr_probe - Adapter hot plug add entry point | |
7222 | * | |
7223 | * Return value: | |
7224 | * 0 on success / non-zero on failure | |
7225 | **/ | |
7226 | static int __devinit ipr_probe(struct pci_dev *pdev, | |
7227 | const struct pci_device_id *dev_id) | |
7228 | { | |
7229 | struct ipr_ioa_cfg *ioa_cfg; | |
7230 | int rc; | |
7231 | ||
7232 | rc = ipr_probe_ioa(pdev, dev_id); | |
7233 | ||
7234 | if (rc) | |
7235 | return rc; | |
7236 | ||
7237 | ioa_cfg = pci_get_drvdata(pdev); | |
7238 | rc = ipr_probe_ioa_part2(ioa_cfg); | |
7239 | ||
7240 | if (rc) { | |
7241 | __ipr_remove(pdev); | |
7242 | return rc; | |
7243 | } | |
7244 | ||
7245 | rc = scsi_add_host(ioa_cfg->host, &pdev->dev); | |
7246 | ||
7247 | if (rc) { | |
7248 | __ipr_remove(pdev); | |
7249 | return rc; | |
7250 | } | |
7251 | ||
7252 | rc = ipr_create_trace_file(&ioa_cfg->host->shost_classdev.kobj, | |
7253 | &ipr_trace_attr); | |
7254 | ||
7255 | if (rc) { | |
7256 | scsi_remove_host(ioa_cfg->host); | |
7257 | __ipr_remove(pdev); | |
7258 | return rc; | |
7259 | } | |
7260 | ||
7261 | rc = ipr_create_dump_file(&ioa_cfg->host->shost_classdev.kobj, | |
7262 | &ipr_dump_attr); | |
7263 | ||
7264 | if (rc) { | |
7265 | ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj, | |
7266 | &ipr_trace_attr); | |
7267 | scsi_remove_host(ioa_cfg->host); | |
7268 | __ipr_remove(pdev); | |
7269 | return rc; | |
7270 | } | |
7271 | ||
7272 | scsi_scan_host(ioa_cfg->host); | |
7273 | ipr_scan_vsets(ioa_cfg); | |
7274 | scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN); | |
7275 | ioa_cfg->allow_ml_add_del = 1; | |
11cd8f12 | 7276 | ioa_cfg->host->max_channel = IPR_VSET_BUS; |
1da177e4 LT |
7277 | schedule_work(&ioa_cfg->work_q); |
7278 | return 0; | |
7279 | } | |
7280 | ||
7281 | /** | |
7282 | * ipr_shutdown - Shutdown handler. | |
d18c3db5 | 7283 | * @pdev: pci device struct |
1da177e4 LT |
7284 | * |
7285 | * This function is invoked upon system shutdown/reboot. It will issue | |
7286 | * an adapter shutdown to the adapter to flush the write cache. | |
7287 | * | |
7288 | * Return value: | |
7289 | * none | |
7290 | **/ | |
d18c3db5 | 7291 | static void ipr_shutdown(struct pci_dev *pdev) |
1da177e4 | 7292 | { |
d18c3db5 | 7293 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
1da177e4 LT |
7294 | unsigned long lock_flags = 0; |
7295 | ||
7296 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
7297 | ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
7298 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
7299 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
7300 | } | |
7301 | ||
7302 | static struct pci_device_id ipr_pci_table[] __devinitdata = { | |
7303 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, | |
7304 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, | |
7305 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
7306 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, | |
7307 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, | |
7308 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
7309 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, | |
7310 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, | |
7311 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
7312 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, | |
7313 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, | |
7314 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
7315 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, | |
7316 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, | |
7317 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
7318 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, | |
7319 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, | |
7320 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
7321 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, | |
7322 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, | |
7323 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
86f51436 | 7324 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
7325 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, | |
7326 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
7327 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, | |
7328 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, | |
7329 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
7330 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, | |
7331 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, | |
7332 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
60e7486b BK |
7333 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, |
7334 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, | |
7335 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
86f51436 | 7336 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, |
7337 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, | |
7338 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
7339 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, | |
7340 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, | |
7341 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
60e7486b BK |
7342 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, |
7343 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, | |
7344 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
7345 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, | |
7346 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B8, | |
7347 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
7348 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, | |
7349 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, | |
7350 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
1da177e4 LT |
7351 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, |
7352 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, | |
7353 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] }, | |
7354 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, | |
7355 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, | |
7356 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] }, | |
86f51436 | 7357 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
7358 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, | |
7359 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] }, | |
60e7486b BK |
7360 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
7361 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, | |
7362 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] }, | |
1da177e4 LT |
7363 | { } |
7364 | }; | |
7365 | MODULE_DEVICE_TABLE(pci, ipr_pci_table); | |
7366 | ||
f8a88b19 LV |
7367 | static struct pci_error_handlers ipr_err_handler = { |
7368 | .error_detected = ipr_pci_error_detected, | |
7369 | .slot_reset = ipr_pci_slot_reset, | |
7370 | }; | |
7371 | ||
1da177e4 LT |
7372 | static struct pci_driver ipr_driver = { |
7373 | .name = IPR_NAME, | |
7374 | .id_table = ipr_pci_table, | |
7375 | .probe = ipr_probe, | |
7376 | .remove = ipr_remove, | |
d18c3db5 | 7377 | .shutdown = ipr_shutdown, |
f8a88b19 | 7378 | .err_handler = &ipr_err_handler, |
1da177e4 LT |
7379 | }; |
7380 | ||
7381 | /** | |
7382 | * ipr_init - Module entry point | |
7383 | * | |
7384 | * Return value: | |
7385 | * 0 on success / negative value on failure | |
7386 | **/ | |
7387 | static int __init ipr_init(void) | |
7388 | { | |
7389 | ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", | |
7390 | IPR_DRIVER_VERSION, IPR_DRIVER_DATE); | |
7391 | ||
dcbccbde | 7392 | return pci_register_driver(&ipr_driver); |
1da177e4 LT |
7393 | } |
7394 | ||
7395 | /** | |
7396 | * ipr_exit - Module unload | |
7397 | * | |
7398 | * Module unload entry point. | |
7399 | * | |
7400 | * Return value: | |
7401 | * none | |
7402 | **/ | |
7403 | static void __exit ipr_exit(void) | |
7404 | { | |
7405 | pci_unregister_driver(&ipr_driver); | |
7406 | } | |
7407 | ||
7408 | module_init(ipr_init); | |
7409 | module_exit(ipr_exit); |