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1da177e4 LT |
1 | /* |
2 | * ipr.c -- driver for IBM Power Linux RAID adapters | |
3 | * | |
4 | * Written By: Brian King <brking@us.ibm.com>, IBM Corporation | |
5 | * | |
6 | * Copyright (C) 2003, 2004 IBM Corporation | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | * | |
22 | */ | |
23 | ||
24 | /* | |
25 | * Notes: | |
26 | * | |
27 | * This driver is used to control the following SCSI adapters: | |
28 | * | |
29 | * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B | |
30 | * | |
31 | * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter | |
32 | * PCI-X Dual Channel Ultra 320 SCSI Adapter | |
33 | * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card | |
34 | * Embedded SCSI adapter on p615 and p655 systems | |
35 | * | |
36 | * Supported Hardware Features: | |
37 | * - Ultra 320 SCSI controller | |
38 | * - PCI-X host interface | |
39 | * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine | |
40 | * - Non-Volatile Write Cache | |
41 | * - Supports attachment of non-RAID disks, tape, and optical devices | |
42 | * - RAID Levels 0, 5, 10 | |
43 | * - Hot spare | |
44 | * - Background Parity Checking | |
45 | * - Background Data Scrubbing | |
46 | * - Ability to increase the capacity of an existing RAID 5 disk array | |
47 | * by adding disks | |
48 | * | |
49 | * Driver Features: | |
50 | * - Tagged command queuing | |
51 | * - Adapter microcode download | |
52 | * - PCI hot plug | |
53 | * - SCSI device hot plug | |
54 | * | |
55 | */ | |
56 | ||
57 | #include <linux/config.h> | |
58 | #include <linux/fs.h> | |
59 | #include <linux/init.h> | |
60 | #include <linux/types.h> | |
61 | #include <linux/errno.h> | |
62 | #include <linux/kernel.h> | |
63 | #include <linux/ioport.h> | |
64 | #include <linux/delay.h> | |
65 | #include <linux/pci.h> | |
66 | #include <linux/wait.h> | |
67 | #include <linux/spinlock.h> | |
68 | #include <linux/sched.h> | |
69 | #include <linux/interrupt.h> | |
70 | #include <linux/blkdev.h> | |
71 | #include <linux/firmware.h> | |
72 | #include <linux/module.h> | |
73 | #include <linux/moduleparam.h> | |
74 | #include <asm/io.h> | |
75 | #include <asm/irq.h> | |
76 | #include <asm/processor.h> | |
77 | #include <scsi/scsi.h> | |
78 | #include <scsi/scsi_host.h> | |
79 | #include <scsi/scsi_tcq.h> | |
80 | #include <scsi/scsi_eh.h> | |
81 | #include <scsi/scsi_cmnd.h> | |
82 | #include <scsi/scsi_request.h> | |
83 | #include "ipr.h" | |
84 | ||
85 | /* | |
86 | * Global Data | |
87 | */ | |
88 | static struct list_head ipr_ioa_head = LIST_HEAD_INIT(ipr_ioa_head); | |
89 | static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL; | |
90 | static unsigned int ipr_max_speed = 1; | |
91 | static int ipr_testmode = 0; | |
92 | static unsigned int ipr_fastfail = 0; | |
93 | static unsigned int ipr_transop_timeout = IPR_OPERATIONAL_TIMEOUT; | |
62275040 | 94 | static unsigned int ipr_enable_cache = 1; |
d3c74871 | 95 | static unsigned int ipr_debug = 0; |
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[] = { | |
100 | { /* Gemstone and Citrine */ | |
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] }, | |
135 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, &ipr_chip_cfg[1] }, | |
136 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, &ipr_chip_cfg[1] } | |
137 | }; | |
138 | ||
139 | static int ipr_max_bus_speeds [] = { | |
140 | IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE | |
141 | }; | |
142 | ||
143 | MODULE_AUTHOR("Brian King <brking@us.ibm.com>"); | |
144 | MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver"); | |
145 | module_param_named(max_speed, ipr_max_speed, uint, 0); | |
146 | MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320"); | |
147 | module_param_named(log_level, ipr_log_level, uint, 0); | |
148 | MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver"); | |
149 | module_param_named(testmode, ipr_testmode, int, 0); | |
150 | MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations"); | |
151 | module_param_named(fastfail, ipr_fastfail, int, 0); | |
152 | MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries"); | |
153 | module_param_named(transop_timeout, ipr_transop_timeout, int, 0); | |
154 | MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)"); | |
62275040 BK |
155 | module_param_named(enable_cache, ipr_enable_cache, int, 0); |
156 | MODULE_PARM_DESC(enable_cache, "Enable adapter's non-volatile write cache (default: 1)"); | |
d3c74871 BK |
157 | module_param_named(debug, ipr_debug, int, 0); |
158 | MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)"); | |
1da177e4 LT |
159 | MODULE_LICENSE("GPL"); |
160 | MODULE_VERSION(IPR_DRIVER_VERSION); | |
161 | ||
162 | static const char *ipr_gpdd_dev_end_states[] = { | |
163 | "Command complete", | |
164 | "Terminated by host", | |
165 | "Terminated by device reset", | |
166 | "Terminated by bus reset", | |
167 | "Unknown", | |
168 | "Command not started" | |
169 | }; | |
170 | ||
171 | static const char *ipr_gpdd_dev_bus_phases[] = { | |
172 | "Bus free", | |
173 | "Arbitration", | |
174 | "Selection", | |
175 | "Message out", | |
176 | "Command", | |
177 | "Message in", | |
178 | "Data out", | |
179 | "Data in", | |
180 | "Status", | |
181 | "Reselection", | |
182 | "Unknown" | |
183 | }; | |
184 | ||
185 | /* A constant array of IOASCs/URCs/Error Messages */ | |
186 | static const | |
187 | struct ipr_error_table_t ipr_error_table[] = { | |
188 | {0x00000000, 1, 1, | |
189 | "8155: An unknown error was received"}, | |
190 | {0x00330000, 0, 0, | |
191 | "Soft underlength error"}, | |
192 | {0x005A0000, 0, 0, | |
193 | "Command to be cancelled not found"}, | |
194 | {0x00808000, 0, 0, | |
195 | "Qualified success"}, | |
196 | {0x01080000, 1, 1, | |
197 | "FFFE: Soft device bus error recovered by the IOA"}, | |
198 | {0x01170600, 0, 1, | |
199 | "FFF9: Device sector reassign successful"}, | |
200 | {0x01170900, 0, 1, | |
201 | "FFF7: Media error recovered by device rewrite procedures"}, | |
202 | {0x01180200, 0, 1, | |
203 | "7001: IOA sector reassignment successful"}, | |
204 | {0x01180500, 0, 1, | |
205 | "FFF9: Soft media error. Sector reassignment recommended"}, | |
206 | {0x01180600, 0, 1, | |
207 | "FFF7: Media error recovered by IOA rewrite procedures"}, | |
208 | {0x01418000, 0, 1, | |
209 | "FF3D: Soft PCI bus error recovered by the IOA"}, | |
210 | {0x01440000, 1, 1, | |
211 | "FFF6: Device hardware error recovered by the IOA"}, | |
212 | {0x01448100, 0, 1, | |
213 | "FFF6: Device hardware error recovered by the device"}, | |
214 | {0x01448200, 1, 1, | |
215 | "FF3D: Soft IOA error recovered by the IOA"}, | |
216 | {0x01448300, 0, 1, | |
217 | "FFFA: Undefined device response recovered by the IOA"}, | |
218 | {0x014A0000, 1, 1, | |
219 | "FFF6: Device bus error, message or command phase"}, | |
220 | {0x015D0000, 0, 1, | |
221 | "FFF6: Failure prediction threshold exceeded"}, | |
222 | {0x015D9200, 0, 1, | |
223 | "8009: Impending cache battery pack failure"}, | |
224 | {0x02040400, 0, 0, | |
225 | "34FF: Disk device format in progress"}, | |
226 | {0x023F0000, 0, 0, | |
227 | "Synchronization required"}, | |
228 | {0x024E0000, 0, 0, | |
229 | "No ready, IOA shutdown"}, | |
230 | {0x025A0000, 0, 0, | |
231 | "Not ready, IOA has been shutdown"}, | |
232 | {0x02670100, 0, 1, | |
233 | "3020: Storage subsystem configuration error"}, | |
234 | {0x03110B00, 0, 0, | |
235 | "FFF5: Medium error, data unreadable, recommend reassign"}, | |
236 | {0x03110C00, 0, 0, | |
237 | "7000: Medium error, data unreadable, do not reassign"}, | |
238 | {0x03310000, 0, 1, | |
239 | "FFF3: Disk media format bad"}, | |
240 | {0x04050000, 0, 1, | |
241 | "3002: Addressed device failed to respond to selection"}, | |
242 | {0x04080000, 1, 1, | |
243 | "3100: Device bus error"}, | |
244 | {0x04080100, 0, 1, | |
245 | "3109: IOA timed out a device command"}, | |
246 | {0x04088000, 0, 0, | |
247 | "3120: SCSI bus is not operational"}, | |
248 | {0x04118000, 0, 1, | |
249 | "9000: IOA reserved area data check"}, | |
250 | {0x04118100, 0, 1, | |
251 | "9001: IOA reserved area invalid data pattern"}, | |
252 | {0x04118200, 0, 1, | |
253 | "9002: IOA reserved area LRC error"}, | |
254 | {0x04320000, 0, 1, | |
255 | "102E: Out of alternate sectors for disk storage"}, | |
256 | {0x04330000, 1, 1, | |
257 | "FFF4: Data transfer underlength error"}, | |
258 | {0x04338000, 1, 1, | |
259 | "FFF4: Data transfer overlength error"}, | |
260 | {0x043E0100, 0, 1, | |
261 | "3400: Logical unit failure"}, | |
262 | {0x04408500, 0, 1, | |
263 | "FFF4: Device microcode is corrupt"}, | |
264 | {0x04418000, 1, 1, | |
265 | "8150: PCI bus error"}, | |
266 | {0x04430000, 1, 0, | |
267 | "Unsupported device bus message received"}, | |
268 | {0x04440000, 1, 1, | |
269 | "FFF4: Disk device problem"}, | |
270 | {0x04448200, 1, 1, | |
271 | "8150: Permanent IOA failure"}, | |
272 | {0x04448300, 0, 1, | |
273 | "3010: Disk device returned wrong response to IOA"}, | |
274 | {0x04448400, 0, 1, | |
275 | "8151: IOA microcode error"}, | |
276 | {0x04448500, 0, 0, | |
277 | "Device bus status error"}, | |
278 | {0x04448600, 0, 1, | |
279 | "8157: IOA error requiring IOA reset to recover"}, | |
280 | {0x04490000, 0, 0, | |
281 | "Message reject received from the device"}, | |
282 | {0x04449200, 0, 1, | |
283 | "8008: A permanent cache battery pack failure occurred"}, | |
284 | {0x0444A000, 0, 1, | |
285 | "9090: Disk unit has been modified after the last known status"}, | |
286 | {0x0444A200, 0, 1, | |
287 | "9081: IOA detected device error"}, | |
288 | {0x0444A300, 0, 1, | |
289 | "9082: IOA detected device error"}, | |
290 | {0x044A0000, 1, 1, | |
291 | "3110: Device bus error, message or command phase"}, | |
292 | {0x04670400, 0, 1, | |
293 | "9091: Incorrect hardware configuration change has been detected"}, | |
b0df54bb BK |
294 | {0x04678000, 0, 1, |
295 | "9073: Invalid multi-adapter configuration"}, | |
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 BK |
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 BK |
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"}, | |
320 | {0x06290000, 0, 1, | |
321 | "FFFB: SCSI bus was reset"}, | |
322 | {0x06290500, 0, 0, | |
323 | "FFFE: SCSI bus transition to single ended"}, | |
324 | {0x06290600, 0, 0, | |
325 | "FFFE: SCSI bus transition to LVD"}, | |
326 | {0x06298000, 0, 1, | |
327 | "FFFB: SCSI bus was reset by another initiator"}, | |
328 | {0x063F0300, 0, 1, | |
329 | "3029: A device replacement has occurred"}, | |
330 | {0x064C8000, 0, 1, | |
331 | "9051: IOA cache data exists for a missing or failed device"}, | |
b0df54bb BK |
332 | {0x064C8100, 0, 1, |
333 | "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"}, | |
1da177e4 LT |
334 | {0x06670100, 0, 1, |
335 | "9025: Disk unit is not supported at its physical location"}, | |
336 | {0x06670600, 0, 1, | |
337 | "3020: IOA detected a SCSI bus configuration error"}, | |
338 | {0x06678000, 0, 1, | |
339 | "3150: SCSI bus configuration error"}, | |
b0df54bb BK |
340 | {0x06678100, 0, 1, |
341 | "9074: Asymmetric advanced function disk configuration"}, | |
1da177e4 LT |
342 | {0x06690200, 0, 1, |
343 | "9041: Array protection temporarily suspended"}, | |
344 | {0x06698200, 0, 1, | |
345 | "9042: Corrupt array parity detected on specified device"}, | |
346 | {0x066B0200, 0, 1, | |
347 | "9030: Array no longer protected due to missing or failed disk unit"}, | |
b0df54bb BK |
348 | {0x066B8000, 0, 1, |
349 | "9071: Link operational transition"}, | |
350 | {0x066B8100, 0, 1, | |
351 | "9072: Link not operational transition"}, | |
1da177e4 LT |
352 | {0x066B8200, 0, 1, |
353 | "9032: Array exposed but still protected"}, | |
354 | {0x07270000, 0, 0, | |
355 | "Failure due to other device"}, | |
356 | {0x07278000, 0, 1, | |
357 | "9008: IOA does not support functions expected by devices"}, | |
358 | {0x07278100, 0, 1, | |
359 | "9010: Cache data associated with attached devices cannot be found"}, | |
360 | {0x07278200, 0, 1, | |
361 | "9011: Cache data belongs to devices other than those attached"}, | |
362 | {0x07278400, 0, 1, | |
363 | "9020: Array missing 2 or more devices with only 1 device present"}, | |
364 | {0x07278500, 0, 1, | |
365 | "9021: Array missing 2 or more devices with 2 or more devices present"}, | |
366 | {0x07278600, 0, 1, | |
367 | "9022: Exposed array is missing a required device"}, | |
368 | {0x07278700, 0, 1, | |
369 | "9023: Array member(s) not at required physical locations"}, | |
370 | {0x07278800, 0, 1, | |
371 | "9024: Array not functional due to present hardware configuration"}, | |
372 | {0x07278900, 0, 1, | |
373 | "9026: Array not functional due to present hardware configuration"}, | |
374 | {0x07278A00, 0, 1, | |
375 | "9027: Array is missing a device and parity is out of sync"}, | |
376 | {0x07278B00, 0, 1, | |
377 | "9028: Maximum number of arrays already exist"}, | |
378 | {0x07278C00, 0, 1, | |
379 | "9050: Required cache data cannot be located for a disk unit"}, | |
380 | {0x07278D00, 0, 1, | |
381 | "9052: Cache data exists for a device that has been modified"}, | |
382 | {0x07278F00, 0, 1, | |
383 | "9054: IOA resources not available due to previous problems"}, | |
384 | {0x07279100, 0, 1, | |
385 | "9092: Disk unit requires initialization before use"}, | |
386 | {0x07279200, 0, 1, | |
387 | "9029: Incorrect hardware configuration change has been detected"}, | |
388 | {0x07279600, 0, 1, | |
389 | "9060: One or more disk pairs are missing from an array"}, | |
390 | {0x07279700, 0, 1, | |
391 | "9061: One or more disks are missing from an array"}, | |
392 | {0x07279800, 0, 1, | |
393 | "9062: One or more disks are missing from an array"}, | |
394 | {0x07279900, 0, 1, | |
395 | "9063: Maximum number of functional arrays has been exceeded"}, | |
396 | {0x0B260000, 0, 0, | |
397 | "Aborted command, invalid descriptor"}, | |
398 | {0x0B5A0000, 0, 0, | |
399 | "Command terminated by host"} | |
400 | }; | |
401 | ||
402 | static const struct ipr_ses_table_entry ipr_ses_table[] = { | |
403 | { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 }, | |
404 | { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 }, | |
405 | { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */ | |
406 | { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */ | |
407 | { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */ | |
408 | { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */ | |
409 | { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 }, | |
410 | { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 }, | |
411 | { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, | |
412 | { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, | |
413 | { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 }, | |
414 | { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 }, | |
415 | { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 } | |
416 | }; | |
417 | ||
418 | /* | |
419 | * Function Prototypes | |
420 | */ | |
421 | static int ipr_reset_alert(struct ipr_cmnd *); | |
422 | static void ipr_process_ccn(struct ipr_cmnd *); | |
423 | static void ipr_process_error(struct ipr_cmnd *); | |
424 | static void ipr_reset_ioa_job(struct ipr_cmnd *); | |
425 | static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *, | |
426 | enum ipr_shutdown_type); | |
427 | ||
428 | #ifdef CONFIG_SCSI_IPR_TRACE | |
429 | /** | |
430 | * ipr_trc_hook - Add a trace entry to the driver trace | |
431 | * @ipr_cmd: ipr command struct | |
432 | * @type: trace type | |
433 | * @add_data: additional data | |
434 | * | |
435 | * Return value: | |
436 | * none | |
437 | **/ | |
438 | static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd, | |
439 | u8 type, u32 add_data) | |
440 | { | |
441 | struct ipr_trace_entry *trace_entry; | |
442 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
443 | ||
444 | trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++]; | |
445 | trace_entry->time = jiffies; | |
446 | trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0]; | |
447 | trace_entry->type = type; | |
448 | trace_entry->cmd_index = ipr_cmd->cmd_index; | |
449 | trace_entry->res_handle = ipr_cmd->ioarcb.res_handle; | |
450 | trace_entry->u.add_data = add_data; | |
451 | } | |
452 | #else | |
453 | #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0) | |
454 | #endif | |
455 | ||
456 | /** | |
457 | * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse | |
458 | * @ipr_cmd: ipr command struct | |
459 | * | |
460 | * Return value: | |
461 | * none | |
462 | **/ | |
463 | static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd) | |
464 | { | |
465 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
466 | struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; | |
467 | ||
468 | memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); | |
469 | ioarcb->write_data_transfer_length = 0; | |
470 | ioarcb->read_data_transfer_length = 0; | |
471 | ioarcb->write_ioadl_len = 0; | |
472 | ioarcb->read_ioadl_len = 0; | |
473 | ioasa->ioasc = 0; | |
474 | ioasa->residual_data_len = 0; | |
475 | ||
476 | ipr_cmd->scsi_cmd = NULL; | |
477 | ipr_cmd->sense_buffer[0] = 0; | |
478 | ipr_cmd->dma_use_sg = 0; | |
479 | } | |
480 | ||
481 | /** | |
482 | * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block | |
483 | * @ipr_cmd: ipr command struct | |
484 | * | |
485 | * Return value: | |
486 | * none | |
487 | **/ | |
488 | static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd) | |
489 | { | |
490 | ipr_reinit_ipr_cmnd(ipr_cmd); | |
491 | ipr_cmd->u.scratch = 0; | |
492 | ipr_cmd->sibling = NULL; | |
493 | init_timer(&ipr_cmd->timer); | |
494 | } | |
495 | ||
496 | /** | |
497 | * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block | |
498 | * @ioa_cfg: ioa config struct | |
499 | * | |
500 | * Return value: | |
501 | * pointer to ipr command struct | |
502 | **/ | |
503 | static | |
504 | struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg) | |
505 | { | |
506 | struct ipr_cmnd *ipr_cmd; | |
507 | ||
508 | ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue); | |
509 | list_del(&ipr_cmd->queue); | |
510 | ipr_init_ipr_cmnd(ipr_cmd); | |
511 | ||
512 | return ipr_cmd; | |
513 | } | |
514 | ||
515 | /** | |
516 | * ipr_unmap_sglist - Unmap scatterlist if mapped | |
517 | * @ioa_cfg: ioa config struct | |
518 | * @ipr_cmd: ipr command struct | |
519 | * | |
520 | * Return value: | |
521 | * nothing | |
522 | **/ | |
523 | static void ipr_unmap_sglist(struct ipr_ioa_cfg *ioa_cfg, | |
524 | struct ipr_cmnd *ipr_cmd) | |
525 | { | |
526 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
527 | ||
528 | if (ipr_cmd->dma_use_sg) { | |
529 | if (scsi_cmd->use_sg > 0) { | |
530 | pci_unmap_sg(ioa_cfg->pdev, scsi_cmd->request_buffer, | |
531 | scsi_cmd->use_sg, | |
532 | scsi_cmd->sc_data_direction); | |
533 | } else { | |
534 | pci_unmap_single(ioa_cfg->pdev, ipr_cmd->dma_handle, | |
535 | scsi_cmd->request_bufflen, | |
536 | scsi_cmd->sc_data_direction); | |
537 | } | |
538 | } | |
539 | } | |
540 | ||
541 | /** | |
542 | * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts | |
543 | * @ioa_cfg: ioa config struct | |
544 | * @clr_ints: interrupts to clear | |
545 | * | |
546 | * This function masks all interrupts on the adapter, then clears the | |
547 | * interrupts specified in the mask | |
548 | * | |
549 | * Return value: | |
550 | * none | |
551 | **/ | |
552 | static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg, | |
553 | u32 clr_ints) | |
554 | { | |
555 | volatile u32 int_reg; | |
556 | ||
557 | /* Stop new interrupts */ | |
558 | ioa_cfg->allow_interrupts = 0; | |
559 | ||
560 | /* Set interrupt mask to stop all new interrupts */ | |
561 | writel(~0, ioa_cfg->regs.set_interrupt_mask_reg); | |
562 | ||
563 | /* Clear any pending interrupts */ | |
564 | writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg); | |
565 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
566 | } | |
567 | ||
568 | /** | |
569 | * ipr_save_pcix_cmd_reg - Save PCI-X command register | |
570 | * @ioa_cfg: ioa config struct | |
571 | * | |
572 | * Return value: | |
573 | * 0 on success / -EIO on failure | |
574 | **/ | |
575 | static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) | |
576 | { | |
577 | int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); | |
578 | ||
579 | if (pcix_cmd_reg == 0) { | |
580 | dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); | |
581 | return -EIO; | |
582 | } | |
583 | ||
584 | if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, | |
585 | &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { | |
586 | dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); | |
587 | return -EIO; | |
588 | } | |
589 | ||
590 | ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO; | |
591 | return 0; | |
592 | } | |
593 | ||
594 | /** | |
595 | * ipr_set_pcix_cmd_reg - Setup PCI-X command register | |
596 | * @ioa_cfg: ioa config struct | |
597 | * | |
598 | * Return value: | |
599 | * 0 on success / -EIO on failure | |
600 | **/ | |
601 | static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) | |
602 | { | |
603 | int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); | |
604 | ||
605 | if (pcix_cmd_reg) { | |
606 | if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, | |
607 | ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { | |
608 | dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n"); | |
609 | return -EIO; | |
610 | } | |
611 | } else { | |
612 | dev_err(&ioa_cfg->pdev->dev, | |
613 | "Failed to setup PCI-X command register\n"); | |
614 | return -EIO; | |
615 | } | |
616 | ||
617 | return 0; | |
618 | } | |
619 | ||
620 | /** | |
621 | * ipr_scsi_eh_done - mid-layer done function for aborted ops | |
622 | * @ipr_cmd: ipr command struct | |
623 | * | |
624 | * This function is invoked by the interrupt handler for | |
625 | * ops generated by the SCSI mid-layer which are being aborted. | |
626 | * | |
627 | * Return value: | |
628 | * none | |
629 | **/ | |
630 | static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) | |
631 | { | |
632 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
633 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
634 | ||
635 | scsi_cmd->result |= (DID_ERROR << 16); | |
636 | ||
637 | ipr_unmap_sglist(ioa_cfg, ipr_cmd); | |
638 | scsi_cmd->scsi_done(scsi_cmd); | |
639 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
640 | } | |
641 | ||
642 | /** | |
643 | * ipr_fail_all_ops - Fails all outstanding ops. | |
644 | * @ioa_cfg: ioa config struct | |
645 | * | |
646 | * This function fails all outstanding ops. | |
647 | * | |
648 | * Return value: | |
649 | * none | |
650 | **/ | |
651 | static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg) | |
652 | { | |
653 | struct ipr_cmnd *ipr_cmd, *temp; | |
654 | ||
655 | ENTER; | |
656 | list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) { | |
657 | list_del(&ipr_cmd->queue); | |
658 | ||
659 | ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET); | |
660 | ipr_cmd->ioasa.ilid = cpu_to_be32(IPR_DRIVER_ILID); | |
661 | ||
662 | if (ipr_cmd->scsi_cmd) | |
663 | ipr_cmd->done = ipr_scsi_eh_done; | |
664 | ||
665 | ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET); | |
666 | del_timer(&ipr_cmd->timer); | |
667 | ipr_cmd->done(ipr_cmd); | |
668 | } | |
669 | ||
670 | LEAVE; | |
671 | } | |
672 | ||
673 | /** | |
674 | * ipr_do_req - Send driver initiated requests. | |
675 | * @ipr_cmd: ipr command struct | |
676 | * @done: done function | |
677 | * @timeout_func: timeout function | |
678 | * @timeout: timeout value | |
679 | * | |
680 | * This function sends the specified command to the adapter with the | |
681 | * timeout given. The done function is invoked on command completion. | |
682 | * | |
683 | * Return value: | |
684 | * none | |
685 | **/ | |
686 | static void ipr_do_req(struct ipr_cmnd *ipr_cmd, | |
687 | void (*done) (struct ipr_cmnd *), | |
688 | void (*timeout_func) (struct ipr_cmnd *), u32 timeout) | |
689 | { | |
690 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
691 | ||
692 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
693 | ||
694 | ipr_cmd->done = done; | |
695 | ||
696 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; | |
697 | ipr_cmd->timer.expires = jiffies + timeout; | |
698 | ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func; | |
699 | ||
700 | add_timer(&ipr_cmd->timer); | |
701 | ||
702 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0); | |
703 | ||
704 | mb(); | |
705 | writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), | |
706 | ioa_cfg->regs.ioarrin_reg); | |
707 | } | |
708 | ||
709 | /** | |
710 | * ipr_internal_cmd_done - Op done function for an internally generated op. | |
711 | * @ipr_cmd: ipr command struct | |
712 | * | |
713 | * This function is the op done function for an internally generated, | |
714 | * blocking op. It simply wakes the sleeping thread. | |
715 | * | |
716 | * Return value: | |
717 | * none | |
718 | **/ | |
719 | static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd) | |
720 | { | |
721 | if (ipr_cmd->sibling) | |
722 | ipr_cmd->sibling = NULL; | |
723 | else | |
724 | complete(&ipr_cmd->completion); | |
725 | } | |
726 | ||
727 | /** | |
728 | * ipr_send_blocking_cmd - Send command and sleep on its completion. | |
729 | * @ipr_cmd: ipr command struct | |
730 | * @timeout_func: function to invoke if command times out | |
731 | * @timeout: timeout | |
732 | * | |
733 | * Return value: | |
734 | * none | |
735 | **/ | |
736 | static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd, | |
737 | void (*timeout_func) (struct ipr_cmnd *ipr_cmd), | |
738 | u32 timeout) | |
739 | { | |
740 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
741 | ||
742 | init_completion(&ipr_cmd->completion); | |
743 | ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout); | |
744 | ||
745 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
746 | wait_for_completion(&ipr_cmd->completion); | |
747 | spin_lock_irq(ioa_cfg->host->host_lock); | |
748 | } | |
749 | ||
750 | /** | |
751 | * ipr_send_hcam - Send an HCAM to the adapter. | |
752 | * @ioa_cfg: ioa config struct | |
753 | * @type: HCAM type | |
754 | * @hostrcb: hostrcb struct | |
755 | * | |
756 | * This function will send a Host Controlled Async command to the adapter. | |
757 | * If HCAMs are currently not allowed to be issued to the adapter, it will | |
758 | * place the hostrcb on the free queue. | |
759 | * | |
760 | * Return value: | |
761 | * none | |
762 | **/ | |
763 | static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type, | |
764 | struct ipr_hostrcb *hostrcb) | |
765 | { | |
766 | struct ipr_cmnd *ipr_cmd; | |
767 | struct ipr_ioarcb *ioarcb; | |
768 | ||
769 | if (ioa_cfg->allow_cmds) { | |
770 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
771 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
772 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q); | |
773 | ||
774 | ipr_cmd->u.hostrcb = hostrcb; | |
775 | ioarcb = &ipr_cmd->ioarcb; | |
776 | ||
777 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
778 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM; | |
779 | ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC; | |
780 | ioarcb->cmd_pkt.cdb[1] = type; | |
781 | ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff; | |
782 | ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff; | |
783 | ||
784 | ioarcb->read_data_transfer_length = cpu_to_be32(sizeof(hostrcb->hcam)); | |
785 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
786 | ipr_cmd->ioadl[0].flags_and_data_len = | |
787 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(hostrcb->hcam)); | |
788 | ipr_cmd->ioadl[0].address = cpu_to_be32(hostrcb->hostrcb_dma); | |
789 | ||
790 | if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE) | |
791 | ipr_cmd->done = ipr_process_ccn; | |
792 | else | |
793 | ipr_cmd->done = ipr_process_error; | |
794 | ||
795 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR); | |
796 | ||
797 | mb(); | |
798 | writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), | |
799 | ioa_cfg->regs.ioarrin_reg); | |
800 | } else { | |
801 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); | |
802 | } | |
803 | } | |
804 | ||
805 | /** | |
806 | * ipr_init_res_entry - Initialize a resource entry struct. | |
807 | * @res: resource entry struct | |
808 | * | |
809 | * Return value: | |
810 | * none | |
811 | **/ | |
812 | static void ipr_init_res_entry(struct ipr_resource_entry *res) | |
813 | { | |
814 | res->needs_sync_complete = 1; | |
815 | res->in_erp = 0; | |
816 | res->add_to_ml = 0; | |
817 | res->del_from_ml = 0; | |
818 | res->resetting_device = 0; | |
819 | res->sdev = NULL; | |
820 | } | |
821 | ||
822 | /** | |
823 | * ipr_handle_config_change - Handle a config change from the adapter | |
824 | * @ioa_cfg: ioa config struct | |
825 | * @hostrcb: hostrcb | |
826 | * | |
827 | * Return value: | |
828 | * none | |
829 | **/ | |
830 | static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg, | |
831 | struct ipr_hostrcb *hostrcb) | |
832 | { | |
833 | struct ipr_resource_entry *res = NULL; | |
834 | struct ipr_config_table_entry *cfgte; | |
835 | u32 is_ndn = 1; | |
836 | ||
837 | cfgte = &hostrcb->hcam.u.ccn.cfgte; | |
838 | ||
839 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
840 | if (!memcmp(&res->cfgte.res_addr, &cfgte->res_addr, | |
841 | sizeof(cfgte->res_addr))) { | |
842 | is_ndn = 0; | |
843 | break; | |
844 | } | |
845 | } | |
846 | ||
847 | if (is_ndn) { | |
848 | if (list_empty(&ioa_cfg->free_res_q)) { | |
849 | ipr_send_hcam(ioa_cfg, | |
850 | IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, | |
851 | hostrcb); | |
852 | return; | |
853 | } | |
854 | ||
855 | res = list_entry(ioa_cfg->free_res_q.next, | |
856 | struct ipr_resource_entry, queue); | |
857 | ||
858 | list_del(&res->queue); | |
859 | ipr_init_res_entry(res); | |
860 | list_add_tail(&res->queue, &ioa_cfg->used_res_q); | |
861 | } | |
862 | ||
863 | memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry)); | |
864 | ||
865 | if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) { | |
866 | if (res->sdev) { | |
867 | res->sdev->hostdata = NULL; | |
868 | res->del_from_ml = 1; | |
869 | if (ioa_cfg->allow_ml_add_del) | |
870 | schedule_work(&ioa_cfg->work_q); | |
871 | } else | |
872 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); | |
873 | } else if (!res->sdev) { | |
874 | res->add_to_ml = 1; | |
875 | if (ioa_cfg->allow_ml_add_del) | |
876 | schedule_work(&ioa_cfg->work_q); | |
877 | } | |
878 | ||
879 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); | |
880 | } | |
881 | ||
882 | /** | |
883 | * ipr_process_ccn - Op done function for a CCN. | |
884 | * @ipr_cmd: ipr command struct | |
885 | * | |
886 | * This function is the op done function for a configuration | |
887 | * change notification host controlled async from the adapter. | |
888 | * | |
889 | * Return value: | |
890 | * none | |
891 | **/ | |
892 | static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd) | |
893 | { | |
894 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
895 | struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; | |
896 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
897 | ||
898 | list_del(&hostrcb->queue); | |
899 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
900 | ||
901 | if (ioasc) { | |
902 | if (ioasc != IPR_IOASC_IOA_WAS_RESET) | |
903 | dev_err(&ioa_cfg->pdev->dev, | |
904 | "Host RCB failed with IOASC: 0x%08X\n", ioasc); | |
905 | ||
906 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); | |
907 | } else { | |
908 | ipr_handle_config_change(ioa_cfg, hostrcb); | |
909 | } | |
910 | } | |
911 | ||
912 | /** | |
913 | * ipr_log_vpd - Log the passed VPD to the error log. | |
cfc32139 | 914 | * @vpd: vendor/product id/sn struct |
1da177e4 LT |
915 | * |
916 | * Return value: | |
917 | * none | |
918 | **/ | |
cfc32139 | 919 | static void ipr_log_vpd(struct ipr_vpd *vpd) |
1da177e4 LT |
920 | { |
921 | char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN | |
922 | + IPR_SERIAL_NUM_LEN]; | |
923 | ||
cfc32139 BK |
924 | memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); |
925 | memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id, | |
1da177e4 LT |
926 | IPR_PROD_ID_LEN); |
927 | buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0'; | |
928 | ipr_err("Vendor/Product ID: %s\n", buffer); | |
929 | ||
cfc32139 | 930 | memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN); |
1da177e4 LT |
931 | buffer[IPR_SERIAL_NUM_LEN] = '\0'; |
932 | ipr_err(" Serial Number: %s\n", buffer); | |
933 | } | |
934 | ||
935 | /** | |
936 | * ipr_log_cache_error - Log a cache error. | |
937 | * @ioa_cfg: ioa config struct | |
938 | * @hostrcb: hostrcb struct | |
939 | * | |
940 | * Return value: | |
941 | * none | |
942 | **/ | |
943 | static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg, | |
944 | struct ipr_hostrcb *hostrcb) | |
945 | { | |
946 | struct ipr_hostrcb_type_02_error *error = | |
947 | &hostrcb->hcam.u.error.u.type_02_error; | |
948 | ||
949 | ipr_err("-----Current Configuration-----\n"); | |
950 | ipr_err("Cache Directory Card Information:\n"); | |
cfc32139 | 951 | ipr_log_vpd(&error->ioa_vpd); |
1da177e4 | 952 | ipr_err("Adapter Card Information:\n"); |
cfc32139 | 953 | ipr_log_vpd(&error->cfc_vpd); |
1da177e4 LT |
954 | |
955 | ipr_err("-----Expected Configuration-----\n"); | |
956 | ipr_err("Cache Directory Card Information:\n"); | |
cfc32139 | 957 | ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd); |
1da177e4 | 958 | ipr_err("Adapter Card Information:\n"); |
cfc32139 | 959 | ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd); |
1da177e4 LT |
960 | |
961 | ipr_err("Additional IOA Data: %08X %08X %08X\n", | |
962 | be32_to_cpu(error->ioa_data[0]), | |
963 | be32_to_cpu(error->ioa_data[1]), | |
964 | be32_to_cpu(error->ioa_data[2])); | |
965 | } | |
966 | ||
967 | /** | |
968 | * ipr_log_config_error - Log a configuration error. | |
969 | * @ioa_cfg: ioa config struct | |
970 | * @hostrcb: hostrcb struct | |
971 | * | |
972 | * Return value: | |
973 | * none | |
974 | **/ | |
975 | static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg, | |
976 | struct ipr_hostrcb *hostrcb) | |
977 | { | |
978 | int errors_logged, i; | |
979 | struct ipr_hostrcb_device_data_entry *dev_entry; | |
980 | struct ipr_hostrcb_type_03_error *error; | |
981 | ||
982 | error = &hostrcb->hcam.u.error.u.type_03_error; | |
983 | errors_logged = be32_to_cpu(error->errors_logged); | |
984 | ||
985 | ipr_err("Device Errors Detected/Logged: %d/%d\n", | |
986 | be32_to_cpu(error->errors_detected), errors_logged); | |
987 | ||
cfc32139 | 988 | dev_entry = error->dev; |
1da177e4 LT |
989 | |
990 | for (i = 0; i < errors_logged; i++, dev_entry++) { | |
991 | ipr_err_separator; | |
992 | ||
fa15b1f6 | 993 | ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); |
cfc32139 | 994 | ipr_log_vpd(&dev_entry->vpd); |
1da177e4 LT |
995 | |
996 | ipr_err("-----New Device Information-----\n"); | |
cfc32139 | 997 | ipr_log_vpd(&dev_entry->new_vpd); |
1da177e4 LT |
998 | |
999 | ipr_err("Cache Directory Card Information:\n"); | |
cfc32139 | 1000 | ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd); |
1da177e4 LT |
1001 | |
1002 | ipr_err("Adapter Card Information:\n"); | |
cfc32139 | 1003 | ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd); |
1da177e4 LT |
1004 | |
1005 | ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n", | |
1006 | be32_to_cpu(dev_entry->ioa_data[0]), | |
1007 | be32_to_cpu(dev_entry->ioa_data[1]), | |
1008 | be32_to_cpu(dev_entry->ioa_data[2]), | |
1009 | be32_to_cpu(dev_entry->ioa_data[3]), | |
1010 | be32_to_cpu(dev_entry->ioa_data[4])); | |
1011 | } | |
1012 | } | |
1013 | ||
1014 | /** | |
1015 | * ipr_log_array_error - Log an array configuration error. | |
1016 | * @ioa_cfg: ioa config struct | |
1017 | * @hostrcb: hostrcb struct | |
1018 | * | |
1019 | * Return value: | |
1020 | * none | |
1021 | **/ | |
1022 | static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg, | |
1023 | struct ipr_hostrcb *hostrcb) | |
1024 | { | |
1025 | int i; | |
1026 | struct ipr_hostrcb_type_04_error *error; | |
1027 | struct ipr_hostrcb_array_data_entry *array_entry; | |
1028 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; | |
1029 | ||
1030 | error = &hostrcb->hcam.u.error.u.type_04_error; | |
1031 | ||
1032 | ipr_err_separator; | |
1033 | ||
1034 | ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", | |
1035 | error->protection_level, | |
1036 | ioa_cfg->host->host_no, | |
1037 | error->last_func_vset_res_addr.bus, | |
1038 | error->last_func_vset_res_addr.target, | |
1039 | error->last_func_vset_res_addr.lun); | |
1040 | ||
1041 | ipr_err_separator; | |
1042 | ||
1043 | array_entry = error->array_member; | |
1044 | ||
1045 | for (i = 0; i < 18; i++) { | |
cfc32139 | 1046 | if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) |
1da177e4 LT |
1047 | continue; |
1048 | ||
fa15b1f6 | 1049 | if (be32_to_cpu(error->exposed_mode_adn) == i) |
1da177e4 | 1050 | ipr_err("Exposed Array Member %d:\n", i); |
fa15b1f6 | 1051 | else |
1da177e4 | 1052 | ipr_err("Array Member %d:\n", i); |
1da177e4 | 1053 | |
cfc32139 | 1054 | ipr_log_vpd(&array_entry->vpd); |
1da177e4 | 1055 | |
fa15b1f6 BK |
1056 | ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); |
1057 | ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, | |
1058 | "Expected Location"); | |
1da177e4 LT |
1059 | |
1060 | ipr_err_separator; | |
1061 | ||
1062 | if (i == 9) | |
1063 | array_entry = error->array_member2; | |
1064 | else | |
1065 | array_entry++; | |
1066 | } | |
1067 | } | |
1068 | ||
1069 | /** | |
b0df54bb BK |
1070 | * ipr_log_hex_data - Log additional hex IOA error data. |
1071 | * @data: IOA error data | |
1072 | * @len: data length | |
1da177e4 LT |
1073 | * |
1074 | * Return value: | |
1075 | * none | |
1076 | **/ | |
b0df54bb | 1077 | static void ipr_log_hex_data(u32 *data, int len) |
1da177e4 LT |
1078 | { |
1079 | int i; | |
1da177e4 | 1080 | |
b0df54bb | 1081 | if (len == 0) |
1da177e4 LT |
1082 | return; |
1083 | ||
b0df54bb | 1084 | for (i = 0; i < len / 4; i += 4) { |
1da177e4 | 1085 | ipr_err("%08X: %08X %08X %08X %08X\n", i*4, |
b0df54bb BK |
1086 | be32_to_cpu(data[i]), |
1087 | be32_to_cpu(data[i+1]), | |
1088 | be32_to_cpu(data[i+2]), | |
1089 | be32_to_cpu(data[i+3])); | |
1da177e4 LT |
1090 | } |
1091 | } | |
1092 | ||
b0df54bb BK |
1093 | /** |
1094 | * ipr_log_dual_ioa_error - Log a dual adapter error. | |
1095 | * @ioa_cfg: ioa config struct | |
1096 | * @hostrcb: hostrcb struct | |
1097 | * | |
1098 | * Return value: | |
1099 | * none | |
1100 | **/ | |
1101 | static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, | |
1102 | struct ipr_hostrcb *hostrcb) | |
1103 | { | |
1104 | struct ipr_hostrcb_type_07_error *error; | |
1105 | ||
1106 | error = &hostrcb->hcam.u.error.u.type_07_error; | |
1107 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; | |
1108 | ||
1109 | ipr_err("%s\n", error->failure_reason); | |
1110 | ipr_err("Remote Adapter VPD:\n"); | |
1111 | ipr_log_vpd(&error->vpd); | |
1112 | ipr_log_hex_data(error->data, | |
1113 | be32_to_cpu(hostrcb->hcam.length) - | |
1114 | (offsetof(struct ipr_hostrcb_error, u) + | |
1115 | offsetof(struct ipr_hostrcb_type_07_error, data))); | |
1116 | } | |
1117 | ||
1118 | /** | |
1119 | * ipr_log_generic_error - Log an adapter error. | |
1120 | * @ioa_cfg: ioa config struct | |
1121 | * @hostrcb: hostrcb struct | |
1122 | * | |
1123 | * Return value: | |
1124 | * none | |
1125 | **/ | |
1126 | static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg, | |
1127 | struct ipr_hostrcb *hostrcb) | |
1128 | { | |
1129 | ipr_log_hex_data(hostrcb->hcam.u.raw.data, | |
1130 | be32_to_cpu(hostrcb->hcam.length)); | |
1131 | } | |
1132 | ||
1da177e4 LT |
1133 | /** |
1134 | * ipr_get_error - Find the specfied IOASC in the ipr_error_table. | |
1135 | * @ioasc: IOASC | |
1136 | * | |
1137 | * This function will return the index of into the ipr_error_table | |
1138 | * for the specified IOASC. If the IOASC is not in the table, | |
1139 | * 0 will be returned, which points to the entry used for unknown errors. | |
1140 | * | |
1141 | * Return value: | |
1142 | * index into the ipr_error_table | |
1143 | **/ | |
1144 | static u32 ipr_get_error(u32 ioasc) | |
1145 | { | |
1146 | int i; | |
1147 | ||
1148 | for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++) | |
1149 | if (ipr_error_table[i].ioasc == ioasc) | |
1150 | return i; | |
1151 | ||
1152 | return 0; | |
1153 | } | |
1154 | ||
1155 | /** | |
1156 | * ipr_handle_log_data - Log an adapter error. | |
1157 | * @ioa_cfg: ioa config struct | |
1158 | * @hostrcb: hostrcb struct | |
1159 | * | |
1160 | * This function logs an adapter error to the system. | |
1161 | * | |
1162 | * Return value: | |
1163 | * none | |
1164 | **/ | |
1165 | static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg, | |
1166 | struct ipr_hostrcb *hostrcb) | |
1167 | { | |
1168 | u32 ioasc; | |
1169 | int error_index; | |
1170 | ||
1171 | if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY) | |
1172 | return; | |
1173 | ||
1174 | if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST) | |
1175 | dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n"); | |
1176 | ||
1177 | ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc); | |
1178 | ||
1179 | if (ioasc == IPR_IOASC_BUS_WAS_RESET || | |
1180 | ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER) { | |
1181 | /* Tell the midlayer we had a bus reset so it will handle the UA properly */ | |
1182 | scsi_report_bus_reset(ioa_cfg->host, | |
1183 | hostrcb->hcam.u.error.failing_dev_res_addr.bus); | |
1184 | } | |
1185 | ||
1186 | error_index = ipr_get_error(ioasc); | |
1187 | ||
1188 | if (!ipr_error_table[error_index].log_hcam) | |
1189 | return; | |
1190 | ||
1191 | if (ipr_is_device(&hostrcb->hcam.u.error.failing_dev_res_addr)) { | |
1192 | ipr_res_err(ioa_cfg, hostrcb->hcam.u.error.failing_dev_res_addr, | |
1193 | "%s\n", ipr_error_table[error_index].error); | |
1194 | } else { | |
1195 | dev_err(&ioa_cfg->pdev->dev, "%s\n", | |
1196 | ipr_error_table[error_index].error); | |
1197 | } | |
1198 | ||
1199 | /* Set indication we have logged an error */ | |
1200 | ioa_cfg->errors_logged++; | |
1201 | ||
1202 | if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) | |
1203 | return; | |
cf852037 BK |
1204 | if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw)) |
1205 | hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw)); | |
1da177e4 LT |
1206 | |
1207 | switch (hostrcb->hcam.overlay_id) { | |
1da177e4 LT |
1208 | case IPR_HOST_RCB_OVERLAY_ID_2: |
1209 | ipr_log_cache_error(ioa_cfg, hostrcb); | |
1210 | break; | |
1211 | case IPR_HOST_RCB_OVERLAY_ID_3: | |
1212 | ipr_log_config_error(ioa_cfg, hostrcb); | |
1213 | break; | |
1214 | case IPR_HOST_RCB_OVERLAY_ID_4: | |
1215 | case IPR_HOST_RCB_OVERLAY_ID_6: | |
1216 | ipr_log_array_error(ioa_cfg, hostrcb); | |
1217 | break; | |
b0df54bb BK |
1218 | case IPR_HOST_RCB_OVERLAY_ID_7: |
1219 | ipr_log_dual_ioa_error(ioa_cfg, hostrcb); | |
1220 | break; | |
cf852037 | 1221 | case IPR_HOST_RCB_OVERLAY_ID_1: |
1da177e4 | 1222 | case IPR_HOST_RCB_OVERLAY_ID_DEFAULT: |
1da177e4 | 1223 | default: |
a9cfca96 | 1224 | ipr_log_generic_error(ioa_cfg, hostrcb); |
1da177e4 LT |
1225 | break; |
1226 | } | |
1227 | } | |
1228 | ||
1229 | /** | |
1230 | * ipr_process_error - Op done function for an adapter error log. | |
1231 | * @ipr_cmd: ipr command struct | |
1232 | * | |
1233 | * This function is the op done function for an error log host | |
1234 | * controlled async from the adapter. It will log the error and | |
1235 | * send the HCAM back to the adapter. | |
1236 | * | |
1237 | * Return value: | |
1238 | * none | |
1239 | **/ | |
1240 | static void ipr_process_error(struct ipr_cmnd *ipr_cmd) | |
1241 | { | |
1242 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
1243 | struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; | |
1244 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
1245 | ||
1246 | list_del(&hostrcb->queue); | |
1247 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
1248 | ||
1249 | if (!ioasc) { | |
1250 | ipr_handle_log_data(ioa_cfg, hostrcb); | |
1251 | } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) { | |
1252 | dev_err(&ioa_cfg->pdev->dev, | |
1253 | "Host RCB failed with IOASC: 0x%08X\n", ioasc); | |
1254 | } | |
1255 | ||
1256 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); | |
1257 | } | |
1258 | ||
1259 | /** | |
1260 | * ipr_timeout - An internally generated op has timed out. | |
1261 | * @ipr_cmd: ipr command struct | |
1262 | * | |
1263 | * This function blocks host requests and initiates an | |
1264 | * adapter reset. | |
1265 | * | |
1266 | * Return value: | |
1267 | * none | |
1268 | **/ | |
1269 | static void ipr_timeout(struct ipr_cmnd *ipr_cmd) | |
1270 | { | |
1271 | unsigned long lock_flags = 0; | |
1272 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
1273 | ||
1274 | ENTER; | |
1275 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1276 | ||
1277 | ioa_cfg->errors_logged++; | |
1278 | dev_err(&ioa_cfg->pdev->dev, | |
1279 | "Adapter being reset due to command timeout.\n"); | |
1280 | ||
1281 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
1282 | ioa_cfg->sdt_state = GET_DUMP; | |
1283 | ||
1284 | if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) | |
1285 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
1286 | ||
1287 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1288 | LEAVE; | |
1289 | } | |
1290 | ||
1291 | /** | |
1292 | * ipr_oper_timeout - Adapter timed out transitioning to operational | |
1293 | * @ipr_cmd: ipr command struct | |
1294 | * | |
1295 | * This function blocks host requests and initiates an | |
1296 | * adapter reset. | |
1297 | * | |
1298 | * Return value: | |
1299 | * none | |
1300 | **/ | |
1301 | static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd) | |
1302 | { | |
1303 | unsigned long lock_flags = 0; | |
1304 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
1305 | ||
1306 | ENTER; | |
1307 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1308 | ||
1309 | ioa_cfg->errors_logged++; | |
1310 | dev_err(&ioa_cfg->pdev->dev, | |
1311 | "Adapter timed out transitioning to operational.\n"); | |
1312 | ||
1313 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
1314 | ioa_cfg->sdt_state = GET_DUMP; | |
1315 | ||
1316 | if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) { | |
1317 | if (ipr_fastfail) | |
1318 | ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; | |
1319 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
1320 | } | |
1321 | ||
1322 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1323 | LEAVE; | |
1324 | } | |
1325 | ||
1326 | /** | |
1327 | * ipr_reset_reload - Reset/Reload the IOA | |
1328 | * @ioa_cfg: ioa config struct | |
1329 | * @shutdown_type: shutdown type | |
1330 | * | |
1331 | * This function resets the adapter and re-initializes it. | |
1332 | * This function assumes that all new host commands have been stopped. | |
1333 | * Return value: | |
1334 | * SUCCESS / FAILED | |
1335 | **/ | |
1336 | static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg, | |
1337 | enum ipr_shutdown_type shutdown_type) | |
1338 | { | |
1339 | if (!ioa_cfg->in_reset_reload) | |
1340 | ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); | |
1341 | ||
1342 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
1343 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
1344 | spin_lock_irq(ioa_cfg->host->host_lock); | |
1345 | ||
1346 | /* If we got hit with a host reset while we were already resetting | |
1347 | the adapter for some reason, and the reset failed. */ | |
1348 | if (ioa_cfg->ioa_is_dead) { | |
1349 | ipr_trace; | |
1350 | return FAILED; | |
1351 | } | |
1352 | ||
1353 | return SUCCESS; | |
1354 | } | |
1355 | ||
1356 | /** | |
1357 | * ipr_find_ses_entry - Find matching SES in SES table | |
1358 | * @res: resource entry struct of SES | |
1359 | * | |
1360 | * Return value: | |
1361 | * pointer to SES table entry / NULL on failure | |
1362 | **/ | |
1363 | static const struct ipr_ses_table_entry * | |
1364 | ipr_find_ses_entry(struct ipr_resource_entry *res) | |
1365 | { | |
1366 | int i, j, matches; | |
1367 | const struct ipr_ses_table_entry *ste = ipr_ses_table; | |
1368 | ||
1369 | for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) { | |
1370 | for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) { | |
1371 | if (ste->compare_product_id_byte[j] == 'X') { | |
1372 | if (res->cfgte.std_inq_data.vpids.product_id[j] == ste->product_id[j]) | |
1373 | matches++; | |
1374 | else | |
1375 | break; | |
1376 | } else | |
1377 | matches++; | |
1378 | } | |
1379 | ||
1380 | if (matches == IPR_PROD_ID_LEN) | |
1381 | return ste; | |
1382 | } | |
1383 | ||
1384 | return NULL; | |
1385 | } | |
1386 | ||
1387 | /** | |
1388 | * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus | |
1389 | * @ioa_cfg: ioa config struct | |
1390 | * @bus: SCSI bus | |
1391 | * @bus_width: bus width | |
1392 | * | |
1393 | * Return value: | |
1394 | * SCSI bus speed in units of 100KHz, 1600 is 160 MHz | |
1395 | * For a 2-byte wide SCSI bus, the maximum transfer speed is | |
1396 | * twice the maximum transfer rate (e.g. for a wide enabled bus, | |
1397 | * max 160MHz = max 320MB/sec). | |
1398 | **/ | |
1399 | static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width) | |
1400 | { | |
1401 | struct ipr_resource_entry *res; | |
1402 | const struct ipr_ses_table_entry *ste; | |
1403 | u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width); | |
1404 | ||
1405 | /* Loop through each config table entry in the config table buffer */ | |
1406 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
1407 | if (!(IPR_IS_SES_DEVICE(res->cfgte.std_inq_data))) | |
1408 | continue; | |
1409 | ||
1410 | if (bus != res->cfgte.res_addr.bus) | |
1411 | continue; | |
1412 | ||
1413 | if (!(ste = ipr_find_ses_entry(res))) | |
1414 | continue; | |
1415 | ||
1416 | max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8); | |
1417 | } | |
1418 | ||
1419 | return max_xfer_rate; | |
1420 | } | |
1421 | ||
1422 | /** | |
1423 | * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA | |
1424 | * @ioa_cfg: ioa config struct | |
1425 | * @max_delay: max delay in micro-seconds to wait | |
1426 | * | |
1427 | * Waits for an IODEBUG ACK from the IOA, doing busy looping. | |
1428 | * | |
1429 | * Return value: | |
1430 | * 0 on success / other on failure | |
1431 | **/ | |
1432 | static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay) | |
1433 | { | |
1434 | volatile u32 pcii_reg; | |
1435 | int delay = 1; | |
1436 | ||
1437 | /* Read interrupt reg until IOA signals IO Debug Acknowledge */ | |
1438 | while (delay < max_delay) { | |
1439 | pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
1440 | ||
1441 | if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE) | |
1442 | return 0; | |
1443 | ||
1444 | /* udelay cannot be used if delay is more than a few milliseconds */ | |
1445 | if ((delay / 1000) > MAX_UDELAY_MS) | |
1446 | mdelay(delay / 1000); | |
1447 | else | |
1448 | udelay(delay); | |
1449 | ||
1450 | delay += delay; | |
1451 | } | |
1452 | return -EIO; | |
1453 | } | |
1454 | ||
1455 | /** | |
1456 | * ipr_get_ldump_data_section - Dump IOA memory | |
1457 | * @ioa_cfg: ioa config struct | |
1458 | * @start_addr: adapter address to dump | |
1459 | * @dest: destination kernel buffer | |
1460 | * @length_in_words: length to dump in 4 byte words | |
1461 | * | |
1462 | * Return value: | |
1463 | * 0 on success / -EIO on failure | |
1464 | **/ | |
1465 | static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg, | |
1466 | u32 start_addr, | |
1467 | __be32 *dest, u32 length_in_words) | |
1468 | { | |
1469 | volatile u32 temp_pcii_reg; | |
1470 | int i, delay = 0; | |
1471 | ||
1472 | /* Write IOA interrupt reg starting LDUMP state */ | |
1473 | writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT), | |
1474 | ioa_cfg->regs.set_uproc_interrupt_reg); | |
1475 | ||
1476 | /* Wait for IO debug acknowledge */ | |
1477 | if (ipr_wait_iodbg_ack(ioa_cfg, | |
1478 | IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) { | |
1479 | dev_err(&ioa_cfg->pdev->dev, | |
1480 | "IOA dump long data transfer timeout\n"); | |
1481 | return -EIO; | |
1482 | } | |
1483 | ||
1484 | /* Signal LDUMP interlocked - clear IO debug ack */ | |
1485 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, | |
1486 | ioa_cfg->regs.clr_interrupt_reg); | |
1487 | ||
1488 | /* Write Mailbox with starting address */ | |
1489 | writel(start_addr, ioa_cfg->ioa_mailbox); | |
1490 | ||
1491 | /* Signal address valid - clear IOA Reset alert */ | |
1492 | writel(IPR_UPROCI_RESET_ALERT, | |
1493 | ioa_cfg->regs.clr_uproc_interrupt_reg); | |
1494 | ||
1495 | for (i = 0; i < length_in_words; i++) { | |
1496 | /* Wait for IO debug acknowledge */ | |
1497 | if (ipr_wait_iodbg_ack(ioa_cfg, | |
1498 | IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) { | |
1499 | dev_err(&ioa_cfg->pdev->dev, | |
1500 | "IOA dump short data transfer timeout\n"); | |
1501 | return -EIO; | |
1502 | } | |
1503 | ||
1504 | /* Read data from mailbox and increment destination pointer */ | |
1505 | *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox)); | |
1506 | dest++; | |
1507 | ||
1508 | /* For all but the last word of data, signal data received */ | |
1509 | if (i < (length_in_words - 1)) { | |
1510 | /* Signal dump data received - Clear IO debug Ack */ | |
1511 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, | |
1512 | ioa_cfg->regs.clr_interrupt_reg); | |
1513 | } | |
1514 | } | |
1515 | ||
1516 | /* Signal end of block transfer. Set reset alert then clear IO debug ack */ | |
1517 | writel(IPR_UPROCI_RESET_ALERT, | |
1518 | ioa_cfg->regs.set_uproc_interrupt_reg); | |
1519 | ||
1520 | writel(IPR_UPROCI_IO_DEBUG_ALERT, | |
1521 | ioa_cfg->regs.clr_uproc_interrupt_reg); | |
1522 | ||
1523 | /* Signal dump data received - Clear IO debug Ack */ | |
1524 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, | |
1525 | ioa_cfg->regs.clr_interrupt_reg); | |
1526 | ||
1527 | /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */ | |
1528 | while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) { | |
1529 | temp_pcii_reg = | |
1530 | readl(ioa_cfg->regs.sense_uproc_interrupt_reg); | |
1531 | ||
1532 | if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT)) | |
1533 | return 0; | |
1534 | ||
1535 | udelay(10); | |
1536 | delay += 10; | |
1537 | } | |
1538 | ||
1539 | return 0; | |
1540 | } | |
1541 | ||
1542 | #ifdef CONFIG_SCSI_IPR_DUMP | |
1543 | /** | |
1544 | * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer | |
1545 | * @ioa_cfg: ioa config struct | |
1546 | * @pci_address: adapter address | |
1547 | * @length: length of data to copy | |
1548 | * | |
1549 | * Copy data from PCI adapter to kernel buffer. | |
1550 | * Note: length MUST be a 4 byte multiple | |
1551 | * Return value: | |
1552 | * 0 on success / other on failure | |
1553 | **/ | |
1554 | static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg, | |
1555 | unsigned long pci_address, u32 length) | |
1556 | { | |
1557 | int bytes_copied = 0; | |
1558 | int cur_len, rc, rem_len, rem_page_len; | |
1559 | __be32 *page; | |
1560 | unsigned long lock_flags = 0; | |
1561 | struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump; | |
1562 | ||
1563 | while (bytes_copied < length && | |
1564 | (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) { | |
1565 | if (ioa_dump->page_offset >= PAGE_SIZE || | |
1566 | ioa_dump->page_offset == 0) { | |
1567 | page = (__be32 *)__get_free_page(GFP_ATOMIC); | |
1568 | ||
1569 | if (!page) { | |
1570 | ipr_trace; | |
1571 | return bytes_copied; | |
1572 | } | |
1573 | ||
1574 | ioa_dump->page_offset = 0; | |
1575 | ioa_dump->ioa_data[ioa_dump->next_page_index] = page; | |
1576 | ioa_dump->next_page_index++; | |
1577 | } else | |
1578 | page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1]; | |
1579 | ||
1580 | rem_len = length - bytes_copied; | |
1581 | rem_page_len = PAGE_SIZE - ioa_dump->page_offset; | |
1582 | cur_len = min(rem_len, rem_page_len); | |
1583 | ||
1584 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1585 | if (ioa_cfg->sdt_state == ABORT_DUMP) { | |
1586 | rc = -EIO; | |
1587 | } else { | |
1588 | rc = ipr_get_ldump_data_section(ioa_cfg, | |
1589 | pci_address + bytes_copied, | |
1590 | &page[ioa_dump->page_offset / 4], | |
1591 | (cur_len / sizeof(u32))); | |
1592 | } | |
1593 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1594 | ||
1595 | if (!rc) { | |
1596 | ioa_dump->page_offset += cur_len; | |
1597 | bytes_copied += cur_len; | |
1598 | } else { | |
1599 | ipr_trace; | |
1600 | break; | |
1601 | } | |
1602 | schedule(); | |
1603 | } | |
1604 | ||
1605 | return bytes_copied; | |
1606 | } | |
1607 | ||
1608 | /** | |
1609 | * ipr_init_dump_entry_hdr - Initialize a dump entry header. | |
1610 | * @hdr: dump entry header struct | |
1611 | * | |
1612 | * Return value: | |
1613 | * nothing | |
1614 | **/ | |
1615 | static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr) | |
1616 | { | |
1617 | hdr->eye_catcher = IPR_DUMP_EYE_CATCHER; | |
1618 | hdr->num_elems = 1; | |
1619 | hdr->offset = sizeof(*hdr); | |
1620 | hdr->status = IPR_DUMP_STATUS_SUCCESS; | |
1621 | } | |
1622 | ||
1623 | /** | |
1624 | * ipr_dump_ioa_type_data - Fill in the adapter type in the dump. | |
1625 | * @ioa_cfg: ioa config struct | |
1626 | * @driver_dump: driver dump struct | |
1627 | * | |
1628 | * Return value: | |
1629 | * nothing | |
1630 | **/ | |
1631 | static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg, | |
1632 | struct ipr_driver_dump *driver_dump) | |
1633 | { | |
1634 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; | |
1635 | ||
1636 | ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr); | |
1637 | driver_dump->ioa_type_entry.hdr.len = | |
1638 | sizeof(struct ipr_dump_ioa_type_entry) - | |
1639 | sizeof(struct ipr_dump_entry_header); | |
1640 | driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; | |
1641 | driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID; | |
1642 | driver_dump->ioa_type_entry.type = ioa_cfg->type; | |
1643 | driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) | | |
1644 | (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) | | |
1645 | ucode_vpd->minor_release[1]; | |
1646 | driver_dump->hdr.num_entries++; | |
1647 | } | |
1648 | ||
1649 | /** | |
1650 | * ipr_dump_version_data - Fill in the driver version in the dump. | |
1651 | * @ioa_cfg: ioa config struct | |
1652 | * @driver_dump: driver dump struct | |
1653 | * | |
1654 | * Return value: | |
1655 | * nothing | |
1656 | **/ | |
1657 | static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg, | |
1658 | struct ipr_driver_dump *driver_dump) | |
1659 | { | |
1660 | ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr); | |
1661 | driver_dump->version_entry.hdr.len = | |
1662 | sizeof(struct ipr_dump_version_entry) - | |
1663 | sizeof(struct ipr_dump_entry_header); | |
1664 | driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; | |
1665 | driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID; | |
1666 | strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION); | |
1667 | driver_dump->hdr.num_entries++; | |
1668 | } | |
1669 | ||
1670 | /** | |
1671 | * ipr_dump_trace_data - Fill in the IOA trace in the dump. | |
1672 | * @ioa_cfg: ioa config struct | |
1673 | * @driver_dump: driver dump struct | |
1674 | * | |
1675 | * Return value: | |
1676 | * nothing | |
1677 | **/ | |
1678 | static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg, | |
1679 | struct ipr_driver_dump *driver_dump) | |
1680 | { | |
1681 | ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr); | |
1682 | driver_dump->trace_entry.hdr.len = | |
1683 | sizeof(struct ipr_dump_trace_entry) - | |
1684 | sizeof(struct ipr_dump_entry_header); | |
1685 | driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; | |
1686 | driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID; | |
1687 | memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE); | |
1688 | driver_dump->hdr.num_entries++; | |
1689 | } | |
1690 | ||
1691 | /** | |
1692 | * ipr_dump_location_data - Fill in the IOA location in the dump. | |
1693 | * @ioa_cfg: ioa config struct | |
1694 | * @driver_dump: driver dump struct | |
1695 | * | |
1696 | * Return value: | |
1697 | * nothing | |
1698 | **/ | |
1699 | static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg, | |
1700 | struct ipr_driver_dump *driver_dump) | |
1701 | { | |
1702 | ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr); | |
1703 | driver_dump->location_entry.hdr.len = | |
1704 | sizeof(struct ipr_dump_location_entry) - | |
1705 | sizeof(struct ipr_dump_entry_header); | |
1706 | driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; | |
1707 | driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID; | |
1708 | strcpy(driver_dump->location_entry.location, ioa_cfg->pdev->dev.bus_id); | |
1709 | driver_dump->hdr.num_entries++; | |
1710 | } | |
1711 | ||
1712 | /** | |
1713 | * ipr_get_ioa_dump - Perform a dump of the driver and adapter. | |
1714 | * @ioa_cfg: ioa config struct | |
1715 | * @dump: dump struct | |
1716 | * | |
1717 | * Return value: | |
1718 | * nothing | |
1719 | **/ | |
1720 | static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump) | |
1721 | { | |
1722 | unsigned long start_addr, sdt_word; | |
1723 | unsigned long lock_flags = 0; | |
1724 | struct ipr_driver_dump *driver_dump = &dump->driver_dump; | |
1725 | struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump; | |
1726 | u32 num_entries, start_off, end_off; | |
1727 | u32 bytes_to_copy, bytes_copied, rc; | |
1728 | struct ipr_sdt *sdt; | |
1729 | int i; | |
1730 | ||
1731 | ENTER; | |
1732 | ||
1733 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1734 | ||
1735 | if (ioa_cfg->sdt_state != GET_DUMP) { | |
1736 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1737 | return; | |
1738 | } | |
1739 | ||
1740 | start_addr = readl(ioa_cfg->ioa_mailbox); | |
1741 | ||
1742 | if (!ipr_sdt_is_fmt2(start_addr)) { | |
1743 | dev_err(&ioa_cfg->pdev->dev, | |
1744 | "Invalid dump table format: %lx\n", start_addr); | |
1745 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1746 | return; | |
1747 | } | |
1748 | ||
1749 | dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n"); | |
1750 | ||
1751 | driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER; | |
1752 | ||
1753 | /* Initialize the overall dump header */ | |
1754 | driver_dump->hdr.len = sizeof(struct ipr_driver_dump); | |
1755 | driver_dump->hdr.num_entries = 1; | |
1756 | driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header); | |
1757 | driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS; | |
1758 | driver_dump->hdr.os = IPR_DUMP_OS_LINUX; | |
1759 | driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME; | |
1760 | ||
1761 | ipr_dump_version_data(ioa_cfg, driver_dump); | |
1762 | ipr_dump_location_data(ioa_cfg, driver_dump); | |
1763 | ipr_dump_ioa_type_data(ioa_cfg, driver_dump); | |
1764 | ipr_dump_trace_data(ioa_cfg, driver_dump); | |
1765 | ||
1766 | /* Update dump_header */ | |
1767 | driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header); | |
1768 | ||
1769 | /* IOA Dump entry */ | |
1770 | ipr_init_dump_entry_hdr(&ioa_dump->hdr); | |
1771 | ioa_dump->format = IPR_SDT_FMT2; | |
1772 | ioa_dump->hdr.len = 0; | |
1773 | ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; | |
1774 | ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID; | |
1775 | ||
1776 | /* First entries in sdt are actually a list of dump addresses and | |
1777 | lengths to gather the real dump data. sdt represents the pointer | |
1778 | to the ioa generated dump table. Dump data will be extracted based | |
1779 | on entries in this table */ | |
1780 | sdt = &ioa_dump->sdt; | |
1781 | ||
1782 | rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt, | |
1783 | sizeof(struct ipr_sdt) / sizeof(__be32)); | |
1784 | ||
1785 | /* Smart Dump table is ready to use and the first entry is valid */ | |
1786 | if (rc || (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE)) { | |
1787 | dev_err(&ioa_cfg->pdev->dev, | |
1788 | "Dump of IOA failed. Dump table not valid: %d, %X.\n", | |
1789 | rc, be32_to_cpu(sdt->hdr.state)); | |
1790 | driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED; | |
1791 | ioa_cfg->sdt_state = DUMP_OBTAINED; | |
1792 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1793 | return; | |
1794 | } | |
1795 | ||
1796 | num_entries = be32_to_cpu(sdt->hdr.num_entries_used); | |
1797 | ||
1798 | if (num_entries > IPR_NUM_SDT_ENTRIES) | |
1799 | num_entries = IPR_NUM_SDT_ENTRIES; | |
1800 | ||
1801 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1802 | ||
1803 | for (i = 0; i < num_entries; i++) { | |
1804 | if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) { | |
1805 | driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; | |
1806 | break; | |
1807 | } | |
1808 | ||
1809 | if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) { | |
1810 | sdt_word = be32_to_cpu(sdt->entry[i].bar_str_offset); | |
1811 | start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK; | |
1812 | end_off = be32_to_cpu(sdt->entry[i].end_offset); | |
1813 | ||
1814 | if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) { | |
1815 | bytes_to_copy = end_off - start_off; | |
1816 | if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) { | |
1817 | sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY; | |
1818 | continue; | |
1819 | } | |
1820 | ||
1821 | /* Copy data from adapter to driver buffers */ | |
1822 | bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word, | |
1823 | bytes_to_copy); | |
1824 | ||
1825 | ioa_dump->hdr.len += bytes_copied; | |
1826 | ||
1827 | if (bytes_copied != bytes_to_copy) { | |
1828 | driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; | |
1829 | break; | |
1830 | } | |
1831 | } | |
1832 | } | |
1833 | } | |
1834 | ||
1835 | dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n"); | |
1836 | ||
1837 | /* Update dump_header */ | |
1838 | driver_dump->hdr.len += ioa_dump->hdr.len; | |
1839 | wmb(); | |
1840 | ioa_cfg->sdt_state = DUMP_OBTAINED; | |
1841 | LEAVE; | |
1842 | } | |
1843 | ||
1844 | #else | |
1845 | #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0) | |
1846 | #endif | |
1847 | ||
1848 | /** | |
1849 | * ipr_release_dump - Free adapter dump memory | |
1850 | * @kref: kref struct | |
1851 | * | |
1852 | * Return value: | |
1853 | * nothing | |
1854 | **/ | |
1855 | static void ipr_release_dump(struct kref *kref) | |
1856 | { | |
1857 | struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref); | |
1858 | struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg; | |
1859 | unsigned long lock_flags = 0; | |
1860 | int i; | |
1861 | ||
1862 | ENTER; | |
1863 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1864 | ioa_cfg->dump = NULL; | |
1865 | ioa_cfg->sdt_state = INACTIVE; | |
1866 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1867 | ||
1868 | for (i = 0; i < dump->ioa_dump.next_page_index; i++) | |
1869 | free_page((unsigned long) dump->ioa_dump.ioa_data[i]); | |
1870 | ||
1871 | kfree(dump); | |
1872 | LEAVE; | |
1873 | } | |
1874 | ||
1875 | /** | |
1876 | * ipr_worker_thread - Worker thread | |
1877 | * @data: ioa config struct | |
1878 | * | |
1879 | * Called at task level from a work thread. This function takes care | |
1880 | * of adding and removing device from the mid-layer as configuration | |
1881 | * changes are detected by the adapter. | |
1882 | * | |
1883 | * Return value: | |
1884 | * nothing | |
1885 | **/ | |
1886 | static void ipr_worker_thread(void *data) | |
1887 | { | |
1888 | unsigned long lock_flags; | |
1889 | struct ipr_resource_entry *res; | |
1890 | struct scsi_device *sdev; | |
1891 | struct ipr_dump *dump; | |
1892 | struct ipr_ioa_cfg *ioa_cfg = data; | |
1893 | u8 bus, target, lun; | |
1894 | int did_work; | |
1895 | ||
1896 | ENTER; | |
1897 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1898 | ||
1899 | if (ioa_cfg->sdt_state == GET_DUMP) { | |
1900 | dump = ioa_cfg->dump; | |
1901 | if (!dump) { | |
1902 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1903 | return; | |
1904 | } | |
1905 | kref_get(&dump->kref); | |
1906 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1907 | ipr_get_ioa_dump(ioa_cfg, dump); | |
1908 | kref_put(&dump->kref, ipr_release_dump); | |
1909 | ||
1910 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1911 | if (ioa_cfg->sdt_state == DUMP_OBTAINED) | |
1912 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
1913 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1914 | return; | |
1915 | } | |
1916 | ||
1917 | restart: | |
1918 | do { | |
1919 | did_work = 0; | |
1920 | if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) { | |
1921 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1922 | return; | |
1923 | } | |
1924 | ||
1925 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
1926 | if (res->del_from_ml && res->sdev) { | |
1927 | did_work = 1; | |
1928 | sdev = res->sdev; | |
1929 | if (!scsi_device_get(sdev)) { | |
1930 | res->sdev = NULL; | |
1931 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); | |
1932 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1933 | scsi_remove_device(sdev); | |
1934 | scsi_device_put(sdev); | |
1935 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1936 | } | |
1937 | break; | |
1938 | } | |
1939 | } | |
1940 | } while(did_work); | |
1941 | ||
1942 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
1943 | if (res->add_to_ml) { | |
1944 | bus = res->cfgte.res_addr.bus; | |
1945 | target = res->cfgte.res_addr.target; | |
1946 | lun = res->cfgte.res_addr.lun; | |
1947 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1948 | scsi_add_device(ioa_cfg->host, bus, target, lun); | |
1949 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1950 | goto restart; | |
1951 | } | |
1952 | } | |
1953 | ||
1954 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1955 | kobject_uevent(&ioa_cfg->host->shost_classdev.kobj, KOBJ_CHANGE, NULL); | |
1956 | LEAVE; | |
1957 | } | |
1958 | ||
1959 | #ifdef CONFIG_SCSI_IPR_TRACE | |
1960 | /** | |
1961 | * ipr_read_trace - Dump the adapter trace | |
1962 | * @kobj: kobject struct | |
1963 | * @buf: buffer | |
1964 | * @off: offset | |
1965 | * @count: buffer size | |
1966 | * | |
1967 | * Return value: | |
1968 | * number of bytes printed to buffer | |
1969 | **/ | |
1970 | static ssize_t ipr_read_trace(struct kobject *kobj, char *buf, | |
1971 | loff_t off, size_t count) | |
1972 | { | |
1973 | struct class_device *cdev = container_of(kobj,struct class_device,kobj); | |
1974 | struct Scsi_Host *shost = class_to_shost(cdev); | |
1975 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
1976 | unsigned long lock_flags = 0; | |
1977 | int size = IPR_TRACE_SIZE; | |
1978 | char *src = (char *)ioa_cfg->trace; | |
1979 | ||
1980 | if (off > size) | |
1981 | return 0; | |
1982 | if (off + count > size) { | |
1983 | size -= off; | |
1984 | count = size; | |
1985 | } | |
1986 | ||
1987 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1988 | memcpy(buf, &src[off], count); | |
1989 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1990 | return count; | |
1991 | } | |
1992 | ||
1993 | static struct bin_attribute ipr_trace_attr = { | |
1994 | .attr = { | |
1995 | .name = "trace", | |
1996 | .mode = S_IRUGO, | |
1997 | }, | |
1998 | .size = 0, | |
1999 | .read = ipr_read_trace, | |
2000 | }; | |
2001 | #endif | |
2002 | ||
62275040 BK |
2003 | static const struct { |
2004 | enum ipr_cache_state state; | |
2005 | char *name; | |
2006 | } cache_state [] = { | |
2007 | { CACHE_NONE, "none" }, | |
2008 | { CACHE_DISABLED, "disabled" }, | |
2009 | { CACHE_ENABLED, "enabled" } | |
2010 | }; | |
2011 | ||
2012 | /** | |
2013 | * ipr_show_write_caching - Show the write caching attribute | |
2014 | * @class_dev: class device struct | |
2015 | * @buf: buffer | |
2016 | * | |
2017 | * Return value: | |
2018 | * number of bytes printed to buffer | |
2019 | **/ | |
2020 | static ssize_t ipr_show_write_caching(struct class_device *class_dev, char *buf) | |
2021 | { | |
2022 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2023 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2024 | unsigned long lock_flags = 0; | |
2025 | int i, len = 0; | |
2026 | ||
2027 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2028 | for (i = 0; i < ARRAY_SIZE(cache_state); i++) { | |
2029 | if (cache_state[i].state == ioa_cfg->cache_state) { | |
2030 | len = snprintf(buf, PAGE_SIZE, "%s\n", cache_state[i].name); | |
2031 | break; | |
2032 | } | |
2033 | } | |
2034 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2035 | return len; | |
2036 | } | |
2037 | ||
2038 | ||
2039 | /** | |
2040 | * ipr_store_write_caching - Enable/disable adapter write cache | |
2041 | * @class_dev: class_device struct | |
2042 | * @buf: buffer | |
2043 | * @count: buffer size | |
2044 | * | |
2045 | * This function will enable/disable adapter write cache. | |
2046 | * | |
2047 | * Return value: | |
2048 | * count on success / other on failure | |
2049 | **/ | |
2050 | static ssize_t ipr_store_write_caching(struct class_device *class_dev, | |
2051 | const char *buf, size_t count) | |
2052 | { | |
2053 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2054 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2055 | unsigned long lock_flags = 0; | |
2056 | enum ipr_cache_state new_state = CACHE_INVALID; | |
2057 | int i; | |
2058 | ||
2059 | if (!capable(CAP_SYS_ADMIN)) | |
2060 | return -EACCES; | |
2061 | if (ioa_cfg->cache_state == CACHE_NONE) | |
2062 | return -EINVAL; | |
2063 | ||
2064 | for (i = 0; i < ARRAY_SIZE(cache_state); i++) { | |
2065 | if (!strncmp(cache_state[i].name, buf, strlen(cache_state[i].name))) { | |
2066 | new_state = cache_state[i].state; | |
2067 | break; | |
2068 | } | |
2069 | } | |
2070 | ||
2071 | if (new_state != CACHE_DISABLED && new_state != CACHE_ENABLED) | |
2072 | return -EINVAL; | |
2073 | ||
2074 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2075 | if (ioa_cfg->cache_state == new_state) { | |
2076 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2077 | return count; | |
2078 | } | |
2079 | ||
2080 | ioa_cfg->cache_state = new_state; | |
2081 | dev_info(&ioa_cfg->pdev->dev, "%s adapter write cache.\n", | |
2082 | new_state == CACHE_ENABLED ? "Enabling" : "Disabling"); | |
2083 | if (!ioa_cfg->in_reset_reload) | |
2084 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
2085 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2086 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2087 | ||
2088 | return count; | |
2089 | } | |
2090 | ||
2091 | static struct class_device_attribute ipr_ioa_cache_attr = { | |
2092 | .attr = { | |
2093 | .name = "write_cache", | |
2094 | .mode = S_IRUGO | S_IWUSR, | |
2095 | }, | |
2096 | .show = ipr_show_write_caching, | |
2097 | .store = ipr_store_write_caching | |
2098 | }; | |
2099 | ||
1da177e4 LT |
2100 | /** |
2101 | * ipr_show_fw_version - Show the firmware version | |
2102 | * @class_dev: class device struct | |
2103 | * @buf: buffer | |
2104 | * | |
2105 | * Return value: | |
2106 | * number of bytes printed to buffer | |
2107 | **/ | |
2108 | static ssize_t ipr_show_fw_version(struct class_device *class_dev, char *buf) | |
2109 | { | |
2110 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2111 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2112 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; | |
2113 | unsigned long lock_flags = 0; | |
2114 | int len; | |
2115 | ||
2116 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2117 | len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n", | |
2118 | ucode_vpd->major_release, ucode_vpd->card_type, | |
2119 | ucode_vpd->minor_release[0], | |
2120 | ucode_vpd->minor_release[1]); | |
2121 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2122 | return len; | |
2123 | } | |
2124 | ||
2125 | static struct class_device_attribute ipr_fw_version_attr = { | |
2126 | .attr = { | |
2127 | .name = "fw_version", | |
2128 | .mode = S_IRUGO, | |
2129 | }, | |
2130 | .show = ipr_show_fw_version, | |
2131 | }; | |
2132 | ||
2133 | /** | |
2134 | * ipr_show_log_level - Show the adapter's error logging level | |
2135 | * @class_dev: class device struct | |
2136 | * @buf: buffer | |
2137 | * | |
2138 | * Return value: | |
2139 | * number of bytes printed to buffer | |
2140 | **/ | |
2141 | static ssize_t ipr_show_log_level(struct class_device *class_dev, char *buf) | |
2142 | { | |
2143 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2144 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2145 | unsigned long lock_flags = 0; | |
2146 | int len; | |
2147 | ||
2148 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2149 | len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level); | |
2150 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2151 | return len; | |
2152 | } | |
2153 | ||
2154 | /** | |
2155 | * ipr_store_log_level - Change the adapter's error logging level | |
2156 | * @class_dev: class device struct | |
2157 | * @buf: buffer | |
2158 | * | |
2159 | * Return value: | |
2160 | * number of bytes printed to buffer | |
2161 | **/ | |
2162 | static ssize_t ipr_store_log_level(struct class_device *class_dev, | |
2163 | const char *buf, size_t count) | |
2164 | { | |
2165 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2166 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2167 | unsigned long lock_flags = 0; | |
2168 | ||
2169 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2170 | ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); | |
2171 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2172 | return strlen(buf); | |
2173 | } | |
2174 | ||
2175 | static struct class_device_attribute ipr_log_level_attr = { | |
2176 | .attr = { | |
2177 | .name = "log_level", | |
2178 | .mode = S_IRUGO | S_IWUSR, | |
2179 | }, | |
2180 | .show = ipr_show_log_level, | |
2181 | .store = ipr_store_log_level | |
2182 | }; | |
2183 | ||
2184 | /** | |
2185 | * ipr_store_diagnostics - IOA Diagnostics interface | |
2186 | * @class_dev: class_device struct | |
2187 | * @buf: buffer | |
2188 | * @count: buffer size | |
2189 | * | |
2190 | * This function will reset the adapter and wait a reasonable | |
2191 | * amount of time for any errors that the adapter might log. | |
2192 | * | |
2193 | * Return value: | |
2194 | * count on success / other on failure | |
2195 | **/ | |
2196 | static ssize_t ipr_store_diagnostics(struct class_device *class_dev, | |
2197 | const char *buf, size_t count) | |
2198 | { | |
2199 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2200 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2201 | unsigned long lock_flags = 0; | |
2202 | int rc = count; | |
2203 | ||
2204 | if (!capable(CAP_SYS_ADMIN)) | |
2205 | return -EACCES; | |
2206 | ||
2207 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2208 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2209 | ioa_cfg->errors_logged = 0; | |
2210 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
2211 | ||
2212 | if (ioa_cfg->in_reset_reload) { | |
2213 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2214 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2215 | ||
2216 | /* Wait for a second for any errors to be logged */ | |
2217 | msleep(1000); | |
2218 | } else { | |
2219 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2220 | return -EIO; | |
2221 | } | |
2222 | ||
2223 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2224 | if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) | |
2225 | rc = -EIO; | |
2226 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2227 | ||
2228 | return rc; | |
2229 | } | |
2230 | ||
2231 | static struct class_device_attribute ipr_diagnostics_attr = { | |
2232 | .attr = { | |
2233 | .name = "run_diagnostics", | |
2234 | .mode = S_IWUSR, | |
2235 | }, | |
2236 | .store = ipr_store_diagnostics | |
2237 | }; | |
2238 | ||
f37eb54b BK |
2239 | /** |
2240 | * ipr_show_adapter_state - Show the adapter's state | |
2241 | * @class_dev: class device struct | |
2242 | * @buf: buffer | |
2243 | * | |
2244 | * Return value: | |
2245 | * number of bytes printed to buffer | |
2246 | **/ | |
2247 | static ssize_t ipr_show_adapter_state(struct class_device *class_dev, char *buf) | |
2248 | { | |
2249 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2250 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2251 | unsigned long lock_flags = 0; | |
2252 | int len; | |
2253 | ||
2254 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2255 | if (ioa_cfg->ioa_is_dead) | |
2256 | len = snprintf(buf, PAGE_SIZE, "offline\n"); | |
2257 | else | |
2258 | len = snprintf(buf, PAGE_SIZE, "online\n"); | |
2259 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2260 | return len; | |
2261 | } | |
2262 | ||
2263 | /** | |
2264 | * ipr_store_adapter_state - Change adapter state | |
2265 | * @class_dev: class_device struct | |
2266 | * @buf: buffer | |
2267 | * @count: buffer size | |
2268 | * | |
2269 | * This function will change the adapter's state. | |
2270 | * | |
2271 | * Return value: | |
2272 | * count on success / other on failure | |
2273 | **/ | |
2274 | static ssize_t ipr_store_adapter_state(struct class_device *class_dev, | |
2275 | const char *buf, size_t count) | |
2276 | { | |
2277 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2278 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2279 | unsigned long lock_flags; | |
2280 | int result = count; | |
2281 | ||
2282 | if (!capable(CAP_SYS_ADMIN)) | |
2283 | return -EACCES; | |
2284 | ||
2285 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2286 | if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) { | |
2287 | ioa_cfg->ioa_is_dead = 0; | |
2288 | ioa_cfg->reset_retries = 0; | |
2289 | ioa_cfg->in_ioa_bringdown = 0; | |
2290 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
2291 | } | |
2292 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2293 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2294 | ||
2295 | return result; | |
2296 | } | |
2297 | ||
2298 | static struct class_device_attribute ipr_ioa_state_attr = { | |
2299 | .attr = { | |
2300 | .name = "state", | |
2301 | .mode = S_IRUGO | S_IWUSR, | |
2302 | }, | |
2303 | .show = ipr_show_adapter_state, | |
2304 | .store = ipr_store_adapter_state | |
2305 | }; | |
2306 | ||
1da177e4 LT |
2307 | /** |
2308 | * ipr_store_reset_adapter - Reset the adapter | |
2309 | * @class_dev: class_device struct | |
2310 | * @buf: buffer | |
2311 | * @count: buffer size | |
2312 | * | |
2313 | * This function will reset the adapter. | |
2314 | * | |
2315 | * Return value: | |
2316 | * count on success / other on failure | |
2317 | **/ | |
2318 | static ssize_t ipr_store_reset_adapter(struct class_device *class_dev, | |
2319 | const char *buf, size_t count) | |
2320 | { | |
2321 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2322 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2323 | unsigned long lock_flags; | |
2324 | int result = count; | |
2325 | ||
2326 | if (!capable(CAP_SYS_ADMIN)) | |
2327 | return -EACCES; | |
2328 | ||
2329 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2330 | if (!ioa_cfg->in_reset_reload) | |
2331 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
2332 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2333 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2334 | ||
2335 | return result; | |
2336 | } | |
2337 | ||
2338 | static struct class_device_attribute ipr_ioa_reset_attr = { | |
2339 | .attr = { | |
2340 | .name = "reset_host", | |
2341 | .mode = S_IWUSR, | |
2342 | }, | |
2343 | .store = ipr_store_reset_adapter | |
2344 | }; | |
2345 | ||
2346 | /** | |
2347 | * ipr_alloc_ucode_buffer - Allocates a microcode download buffer | |
2348 | * @buf_len: buffer length | |
2349 | * | |
2350 | * Allocates a DMA'able buffer in chunks and assembles a scatter/gather | |
2351 | * list to use for microcode download | |
2352 | * | |
2353 | * Return value: | |
2354 | * pointer to sglist / NULL on failure | |
2355 | **/ | |
2356 | static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) | |
2357 | { | |
2358 | int sg_size, order, bsize_elem, num_elem, i, j; | |
2359 | struct ipr_sglist *sglist; | |
2360 | struct scatterlist *scatterlist; | |
2361 | struct page *page; | |
2362 | ||
2363 | /* Get the minimum size per scatter/gather element */ | |
2364 | sg_size = buf_len / (IPR_MAX_SGLIST - 1); | |
2365 | ||
2366 | /* Get the actual size per element */ | |
2367 | order = get_order(sg_size); | |
2368 | ||
2369 | /* Determine the actual number of bytes per element */ | |
2370 | bsize_elem = PAGE_SIZE * (1 << order); | |
2371 | ||
2372 | /* Determine the actual number of sg entries needed */ | |
2373 | if (buf_len % bsize_elem) | |
2374 | num_elem = (buf_len / bsize_elem) + 1; | |
2375 | else | |
2376 | num_elem = buf_len / bsize_elem; | |
2377 | ||
2378 | /* Allocate a scatter/gather list for the DMA */ | |
0bc42e35 | 2379 | sglist = kzalloc(sizeof(struct ipr_sglist) + |
1da177e4 LT |
2380 | (sizeof(struct scatterlist) * (num_elem - 1)), |
2381 | GFP_KERNEL); | |
2382 | ||
2383 | if (sglist == NULL) { | |
2384 | ipr_trace; | |
2385 | return NULL; | |
2386 | } | |
2387 | ||
1da177e4 LT |
2388 | scatterlist = sglist->scatterlist; |
2389 | ||
2390 | sglist->order = order; | |
2391 | sglist->num_sg = num_elem; | |
2392 | ||
2393 | /* Allocate a bunch of sg elements */ | |
2394 | for (i = 0; i < num_elem; i++) { | |
2395 | page = alloc_pages(GFP_KERNEL, order); | |
2396 | if (!page) { | |
2397 | ipr_trace; | |
2398 | ||
2399 | /* Free up what we already allocated */ | |
2400 | for (j = i - 1; j >= 0; j--) | |
2401 | __free_pages(scatterlist[j].page, order); | |
2402 | kfree(sglist); | |
2403 | return NULL; | |
2404 | } | |
2405 | ||
2406 | scatterlist[i].page = page; | |
2407 | } | |
2408 | ||
2409 | return sglist; | |
2410 | } | |
2411 | ||
2412 | /** | |
2413 | * ipr_free_ucode_buffer - Frees a microcode download buffer | |
2414 | * @p_dnld: scatter/gather list pointer | |
2415 | * | |
2416 | * Free a DMA'able ucode download buffer previously allocated with | |
2417 | * ipr_alloc_ucode_buffer | |
2418 | * | |
2419 | * Return value: | |
2420 | * nothing | |
2421 | **/ | |
2422 | static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) | |
2423 | { | |
2424 | int i; | |
2425 | ||
2426 | for (i = 0; i < sglist->num_sg; i++) | |
2427 | __free_pages(sglist->scatterlist[i].page, sglist->order); | |
2428 | ||
2429 | kfree(sglist); | |
2430 | } | |
2431 | ||
2432 | /** | |
2433 | * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer | |
2434 | * @sglist: scatter/gather list pointer | |
2435 | * @buffer: buffer pointer | |
2436 | * @len: buffer length | |
2437 | * | |
2438 | * Copy a microcode image from a user buffer into a buffer allocated by | |
2439 | * ipr_alloc_ucode_buffer | |
2440 | * | |
2441 | * Return value: | |
2442 | * 0 on success / other on failure | |
2443 | **/ | |
2444 | static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, | |
2445 | u8 *buffer, u32 len) | |
2446 | { | |
2447 | int bsize_elem, i, result = 0; | |
2448 | struct scatterlist *scatterlist; | |
2449 | void *kaddr; | |
2450 | ||
2451 | /* Determine the actual number of bytes per element */ | |
2452 | bsize_elem = PAGE_SIZE * (1 << sglist->order); | |
2453 | ||
2454 | scatterlist = sglist->scatterlist; | |
2455 | ||
2456 | for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) { | |
2457 | kaddr = kmap(scatterlist[i].page); | |
2458 | memcpy(kaddr, buffer, bsize_elem); | |
2459 | kunmap(scatterlist[i].page); | |
2460 | ||
2461 | scatterlist[i].length = bsize_elem; | |
2462 | ||
2463 | if (result != 0) { | |
2464 | ipr_trace; | |
2465 | return result; | |
2466 | } | |
2467 | } | |
2468 | ||
2469 | if (len % bsize_elem) { | |
2470 | kaddr = kmap(scatterlist[i].page); | |
2471 | memcpy(kaddr, buffer, len % bsize_elem); | |
2472 | kunmap(scatterlist[i].page); | |
2473 | ||
2474 | scatterlist[i].length = len % bsize_elem; | |
2475 | } | |
2476 | ||
2477 | sglist->buffer_len = len; | |
2478 | return result; | |
2479 | } | |
2480 | ||
2481 | /** | |
12baa420 | 2482 | * ipr_build_ucode_ioadl - Build a microcode download IOADL |
1da177e4 LT |
2483 | * @ipr_cmd: ipr command struct |
2484 | * @sglist: scatter/gather list | |
1da177e4 | 2485 | * |
12baa420 | 2486 | * Builds a microcode download IOA data list (IOADL). |
1da177e4 | 2487 | * |
1da177e4 | 2488 | **/ |
12baa420 BK |
2489 | static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, |
2490 | struct ipr_sglist *sglist) | |
1da177e4 | 2491 | { |
1da177e4 LT |
2492 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
2493 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
2494 | struct scatterlist *scatterlist = sglist->scatterlist; | |
2495 | int i; | |
2496 | ||
12baa420 | 2497 | ipr_cmd->dma_use_sg = sglist->num_dma_sg; |
1da177e4 | 2498 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
12baa420 | 2499 | ioarcb->write_data_transfer_length = cpu_to_be32(sglist->buffer_len); |
1da177e4 LT |
2500 | ioarcb->write_ioadl_len = |
2501 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
2502 | ||
2503 | for (i = 0; i < ipr_cmd->dma_use_sg; i++) { | |
2504 | ioadl[i].flags_and_data_len = | |
2505 | cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i])); | |
2506 | ioadl[i].address = | |
2507 | cpu_to_be32(sg_dma_address(&scatterlist[i])); | |
2508 | } | |
2509 | ||
12baa420 BK |
2510 | ioadl[i-1].flags_and_data_len |= |
2511 | cpu_to_be32(IPR_IOADL_FLAGS_LAST); | |
2512 | } | |
2513 | ||
2514 | /** | |
2515 | * ipr_update_ioa_ucode - Update IOA's microcode | |
2516 | * @ioa_cfg: ioa config struct | |
2517 | * @sglist: scatter/gather list | |
2518 | * | |
2519 | * Initiate an adapter reset to update the IOA's microcode | |
2520 | * | |
2521 | * Return value: | |
2522 | * 0 on success / -EIO on failure | |
2523 | **/ | |
2524 | static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, | |
2525 | struct ipr_sglist *sglist) | |
2526 | { | |
2527 | unsigned long lock_flags; | |
2528 | ||
2529 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2530 | ||
2531 | if (ioa_cfg->ucode_sglist) { | |
2532 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2533 | dev_err(&ioa_cfg->pdev->dev, | |
2534 | "Microcode download already in progress\n"); | |
2535 | return -EIO; | |
1da177e4 | 2536 | } |
12baa420 BK |
2537 | |
2538 | sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist, | |
2539 | sglist->num_sg, DMA_TO_DEVICE); | |
2540 | ||
2541 | if (!sglist->num_dma_sg) { | |
2542 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2543 | dev_err(&ioa_cfg->pdev->dev, | |
2544 | "Failed to map microcode download buffer!\n"); | |
1da177e4 LT |
2545 | return -EIO; |
2546 | } | |
2547 | ||
12baa420 BK |
2548 | ioa_cfg->ucode_sglist = sglist; |
2549 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
2550 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2551 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2552 | ||
2553 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2554 | ioa_cfg->ucode_sglist = NULL; | |
2555 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1da177e4 LT |
2556 | return 0; |
2557 | } | |
2558 | ||
2559 | /** | |
2560 | * ipr_store_update_fw - Update the firmware on the adapter | |
2561 | * @class_dev: class_device struct | |
2562 | * @buf: buffer | |
2563 | * @count: buffer size | |
2564 | * | |
2565 | * This function will update the firmware on the adapter. | |
2566 | * | |
2567 | * Return value: | |
2568 | * count on success / other on failure | |
2569 | **/ | |
2570 | static ssize_t ipr_store_update_fw(struct class_device *class_dev, | |
2571 | const char *buf, size_t count) | |
2572 | { | |
2573 | struct Scsi_Host *shost = class_to_shost(class_dev); | |
2574 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2575 | struct ipr_ucode_image_header *image_hdr; | |
2576 | const struct firmware *fw_entry; | |
2577 | struct ipr_sglist *sglist; | |
1da177e4 LT |
2578 | char fname[100]; |
2579 | char *src; | |
2580 | int len, result, dnld_size; | |
2581 | ||
2582 | if (!capable(CAP_SYS_ADMIN)) | |
2583 | return -EACCES; | |
2584 | ||
2585 | len = snprintf(fname, 99, "%s", buf); | |
2586 | fname[len-1] = '\0'; | |
2587 | ||
2588 | if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) { | |
2589 | dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname); | |
2590 | return -EIO; | |
2591 | } | |
2592 | ||
2593 | image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; | |
2594 | ||
2595 | if (be32_to_cpu(image_hdr->header_length) > fw_entry->size || | |
2596 | (ioa_cfg->vpd_cbs->page3_data.card_type && | |
2597 | ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) { | |
2598 | dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n"); | |
2599 | release_firmware(fw_entry); | |
2600 | return -EINVAL; | |
2601 | } | |
2602 | ||
2603 | src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); | |
2604 | dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); | |
2605 | sglist = ipr_alloc_ucode_buffer(dnld_size); | |
2606 | ||
2607 | if (!sglist) { | |
2608 | dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n"); | |
2609 | release_firmware(fw_entry); | |
2610 | return -ENOMEM; | |
2611 | } | |
2612 | ||
2613 | result = ipr_copy_ucode_buffer(sglist, src, dnld_size); | |
2614 | ||
2615 | if (result) { | |
2616 | dev_err(&ioa_cfg->pdev->dev, | |
2617 | "Microcode buffer copy to DMA buffer failed\n"); | |
12baa420 | 2618 | goto out; |
1da177e4 LT |
2619 | } |
2620 | ||
12baa420 | 2621 | result = ipr_update_ioa_ucode(ioa_cfg, sglist); |
1da177e4 | 2622 | |
12baa420 BK |
2623 | if (!result) |
2624 | result = count; | |
2625 | out: | |
1da177e4 LT |
2626 | ipr_free_ucode_buffer(sglist); |
2627 | release_firmware(fw_entry); | |
12baa420 | 2628 | return result; |
1da177e4 LT |
2629 | } |
2630 | ||
2631 | static struct class_device_attribute ipr_update_fw_attr = { | |
2632 | .attr = { | |
2633 | .name = "update_fw", | |
2634 | .mode = S_IWUSR, | |
2635 | }, | |
2636 | .store = ipr_store_update_fw | |
2637 | }; | |
2638 | ||
2639 | static struct class_device_attribute *ipr_ioa_attrs[] = { | |
2640 | &ipr_fw_version_attr, | |
2641 | &ipr_log_level_attr, | |
2642 | &ipr_diagnostics_attr, | |
f37eb54b | 2643 | &ipr_ioa_state_attr, |
1da177e4 LT |
2644 | &ipr_ioa_reset_attr, |
2645 | &ipr_update_fw_attr, | |
62275040 | 2646 | &ipr_ioa_cache_attr, |
1da177e4 LT |
2647 | NULL, |
2648 | }; | |
2649 | ||
2650 | #ifdef CONFIG_SCSI_IPR_DUMP | |
2651 | /** | |
2652 | * ipr_read_dump - Dump the adapter | |
2653 | * @kobj: kobject struct | |
2654 | * @buf: buffer | |
2655 | * @off: offset | |
2656 | * @count: buffer size | |
2657 | * | |
2658 | * Return value: | |
2659 | * number of bytes printed to buffer | |
2660 | **/ | |
2661 | static ssize_t ipr_read_dump(struct kobject *kobj, char *buf, | |
2662 | loff_t off, size_t count) | |
2663 | { | |
2664 | struct class_device *cdev = container_of(kobj,struct class_device,kobj); | |
2665 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2666 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2667 | struct ipr_dump *dump; | |
2668 | unsigned long lock_flags = 0; | |
2669 | char *src; | |
2670 | int len; | |
2671 | size_t rc = count; | |
2672 | ||
2673 | if (!capable(CAP_SYS_ADMIN)) | |
2674 | return -EACCES; | |
2675 | ||
2676 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2677 | dump = ioa_cfg->dump; | |
2678 | ||
2679 | if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { | |
2680 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2681 | return 0; | |
2682 | } | |
2683 | kref_get(&dump->kref); | |
2684 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2685 | ||
2686 | if (off > dump->driver_dump.hdr.len) { | |
2687 | kref_put(&dump->kref, ipr_release_dump); | |
2688 | return 0; | |
2689 | } | |
2690 | ||
2691 | if (off + count > dump->driver_dump.hdr.len) { | |
2692 | count = dump->driver_dump.hdr.len - off; | |
2693 | rc = count; | |
2694 | } | |
2695 | ||
2696 | if (count && off < sizeof(dump->driver_dump)) { | |
2697 | if (off + count > sizeof(dump->driver_dump)) | |
2698 | len = sizeof(dump->driver_dump) - off; | |
2699 | else | |
2700 | len = count; | |
2701 | src = (u8 *)&dump->driver_dump + off; | |
2702 | memcpy(buf, src, len); | |
2703 | buf += len; | |
2704 | off += len; | |
2705 | count -= len; | |
2706 | } | |
2707 | ||
2708 | off -= sizeof(dump->driver_dump); | |
2709 | ||
2710 | if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) { | |
2711 | if (off + count > offsetof(struct ipr_ioa_dump, ioa_data)) | |
2712 | len = offsetof(struct ipr_ioa_dump, ioa_data) - off; | |
2713 | else | |
2714 | len = count; | |
2715 | src = (u8 *)&dump->ioa_dump + off; | |
2716 | memcpy(buf, src, len); | |
2717 | buf += len; | |
2718 | off += len; | |
2719 | count -= len; | |
2720 | } | |
2721 | ||
2722 | off -= offsetof(struct ipr_ioa_dump, ioa_data); | |
2723 | ||
2724 | while (count) { | |
2725 | if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) | |
2726 | len = PAGE_ALIGN(off) - off; | |
2727 | else | |
2728 | len = count; | |
2729 | src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; | |
2730 | src += off & ~PAGE_MASK; | |
2731 | memcpy(buf, src, len); | |
2732 | buf += len; | |
2733 | off += len; | |
2734 | count -= len; | |
2735 | } | |
2736 | ||
2737 | kref_put(&dump->kref, ipr_release_dump); | |
2738 | return rc; | |
2739 | } | |
2740 | ||
2741 | /** | |
2742 | * ipr_alloc_dump - Prepare for adapter dump | |
2743 | * @ioa_cfg: ioa config struct | |
2744 | * | |
2745 | * Return value: | |
2746 | * 0 on success / other on failure | |
2747 | **/ | |
2748 | static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) | |
2749 | { | |
2750 | struct ipr_dump *dump; | |
2751 | unsigned long lock_flags = 0; | |
2752 | ||
2753 | ENTER; | |
0bc42e35 | 2754 | dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL); |
1da177e4 LT |
2755 | |
2756 | if (!dump) { | |
2757 | ipr_err("Dump memory allocation failed\n"); | |
2758 | return -ENOMEM; | |
2759 | } | |
2760 | ||
1da177e4 LT |
2761 | kref_init(&dump->kref); |
2762 | dump->ioa_cfg = ioa_cfg; | |
2763 | ||
2764 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2765 | ||
2766 | if (INACTIVE != ioa_cfg->sdt_state) { | |
2767 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2768 | kfree(dump); | |
2769 | return 0; | |
2770 | } | |
2771 | ||
2772 | ioa_cfg->dump = dump; | |
2773 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; | |
2774 | if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) { | |
2775 | ioa_cfg->dump_taken = 1; | |
2776 | schedule_work(&ioa_cfg->work_q); | |
2777 | } | |
2778 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2779 | ||
2780 | LEAVE; | |
2781 | return 0; | |
2782 | } | |
2783 | ||
2784 | /** | |
2785 | * ipr_free_dump - Free adapter dump memory | |
2786 | * @ioa_cfg: ioa config struct | |
2787 | * | |
2788 | * Return value: | |
2789 | * 0 on success / other on failure | |
2790 | **/ | |
2791 | static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) | |
2792 | { | |
2793 | struct ipr_dump *dump; | |
2794 | unsigned long lock_flags = 0; | |
2795 | ||
2796 | ENTER; | |
2797 | ||
2798 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2799 | dump = ioa_cfg->dump; | |
2800 | if (!dump) { | |
2801 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2802 | return 0; | |
2803 | } | |
2804 | ||
2805 | ioa_cfg->dump = NULL; | |
2806 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2807 | ||
2808 | kref_put(&dump->kref, ipr_release_dump); | |
2809 | ||
2810 | LEAVE; | |
2811 | return 0; | |
2812 | } | |
2813 | ||
2814 | /** | |
2815 | * ipr_write_dump - Setup dump state of adapter | |
2816 | * @kobj: kobject struct | |
2817 | * @buf: buffer | |
2818 | * @off: offset | |
2819 | * @count: buffer size | |
2820 | * | |
2821 | * Return value: | |
2822 | * number of bytes printed to buffer | |
2823 | **/ | |
2824 | static ssize_t ipr_write_dump(struct kobject *kobj, char *buf, | |
2825 | loff_t off, size_t count) | |
2826 | { | |
2827 | struct class_device *cdev = container_of(kobj,struct class_device,kobj); | |
2828 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2829 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
2830 | int rc; | |
2831 | ||
2832 | if (!capable(CAP_SYS_ADMIN)) | |
2833 | return -EACCES; | |
2834 | ||
2835 | if (buf[0] == '1') | |
2836 | rc = ipr_alloc_dump(ioa_cfg); | |
2837 | else if (buf[0] == '0') | |
2838 | rc = ipr_free_dump(ioa_cfg); | |
2839 | else | |
2840 | return -EINVAL; | |
2841 | ||
2842 | if (rc) | |
2843 | return rc; | |
2844 | else | |
2845 | return count; | |
2846 | } | |
2847 | ||
2848 | static struct bin_attribute ipr_dump_attr = { | |
2849 | .attr = { | |
2850 | .name = "dump", | |
2851 | .mode = S_IRUSR | S_IWUSR, | |
2852 | }, | |
2853 | .size = 0, | |
2854 | .read = ipr_read_dump, | |
2855 | .write = ipr_write_dump | |
2856 | }; | |
2857 | #else | |
2858 | static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; | |
2859 | #endif | |
2860 | ||
2861 | /** | |
2862 | * ipr_change_queue_depth - Change the device's queue depth | |
2863 | * @sdev: scsi device struct | |
2864 | * @qdepth: depth to set | |
2865 | * | |
2866 | * Return value: | |
2867 | * actual depth set | |
2868 | **/ | |
2869 | static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth) | |
2870 | { | |
2871 | scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); | |
2872 | return sdev->queue_depth; | |
2873 | } | |
2874 | ||
2875 | /** | |
2876 | * ipr_change_queue_type - Change the device's queue type | |
2877 | * @dsev: scsi device struct | |
2878 | * @tag_type: type of tags to use | |
2879 | * | |
2880 | * Return value: | |
2881 | * actual queue type set | |
2882 | **/ | |
2883 | static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type) | |
2884 | { | |
2885 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; | |
2886 | struct ipr_resource_entry *res; | |
2887 | unsigned long lock_flags = 0; | |
2888 | ||
2889 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2890 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
2891 | ||
2892 | if (res) { | |
2893 | if (ipr_is_gscsi(res) && sdev->tagged_supported) { | |
2894 | /* | |
2895 | * We don't bother quiescing the device here since the | |
2896 | * adapter firmware does it for us. | |
2897 | */ | |
2898 | scsi_set_tag_type(sdev, tag_type); | |
2899 | ||
2900 | if (tag_type) | |
2901 | scsi_activate_tcq(sdev, sdev->queue_depth); | |
2902 | else | |
2903 | scsi_deactivate_tcq(sdev, sdev->queue_depth); | |
2904 | } else | |
2905 | tag_type = 0; | |
2906 | } else | |
2907 | tag_type = 0; | |
2908 | ||
2909 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2910 | return tag_type; | |
2911 | } | |
2912 | ||
2913 | /** | |
2914 | * ipr_show_adapter_handle - Show the adapter's resource handle for this device | |
2915 | * @dev: device struct | |
2916 | * @buf: buffer | |
2917 | * | |
2918 | * Return value: | |
2919 | * number of bytes printed to buffer | |
2920 | **/ | |
10523b3b | 2921 | static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
2922 | { |
2923 | struct scsi_device *sdev = to_scsi_device(dev); | |
2924 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; | |
2925 | struct ipr_resource_entry *res; | |
2926 | unsigned long lock_flags = 0; | |
2927 | ssize_t len = -ENXIO; | |
2928 | ||
2929 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2930 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
2931 | if (res) | |
2932 | len = snprintf(buf, PAGE_SIZE, "%08X\n", res->cfgte.res_handle); | |
2933 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2934 | return len; | |
2935 | } | |
2936 | ||
2937 | static struct device_attribute ipr_adapter_handle_attr = { | |
2938 | .attr = { | |
2939 | .name = "adapter_handle", | |
2940 | .mode = S_IRUSR, | |
2941 | }, | |
2942 | .show = ipr_show_adapter_handle | |
2943 | }; | |
2944 | ||
2945 | static struct device_attribute *ipr_dev_attrs[] = { | |
2946 | &ipr_adapter_handle_attr, | |
2947 | NULL, | |
2948 | }; | |
2949 | ||
2950 | /** | |
2951 | * ipr_biosparam - Return the HSC mapping | |
2952 | * @sdev: scsi device struct | |
2953 | * @block_device: block device pointer | |
2954 | * @capacity: capacity of the device | |
2955 | * @parm: Array containing returned HSC values. | |
2956 | * | |
2957 | * This function generates the HSC parms that fdisk uses. | |
2958 | * We want to make sure we return something that places partitions | |
2959 | * on 4k boundaries for best performance with the IOA. | |
2960 | * | |
2961 | * Return value: | |
2962 | * 0 on success | |
2963 | **/ | |
2964 | static int ipr_biosparam(struct scsi_device *sdev, | |
2965 | struct block_device *block_device, | |
2966 | sector_t capacity, int *parm) | |
2967 | { | |
2968 | int heads, sectors; | |
2969 | sector_t cylinders; | |
2970 | ||
2971 | heads = 128; | |
2972 | sectors = 32; | |
2973 | ||
2974 | cylinders = capacity; | |
2975 | sector_div(cylinders, (128 * 32)); | |
2976 | ||
2977 | /* return result */ | |
2978 | parm[0] = heads; | |
2979 | parm[1] = sectors; | |
2980 | parm[2] = cylinders; | |
2981 | ||
2982 | return 0; | |
2983 | } | |
2984 | ||
2985 | /** | |
2986 | * ipr_slave_destroy - Unconfigure a SCSI device | |
2987 | * @sdev: scsi device struct | |
2988 | * | |
2989 | * Return value: | |
2990 | * nothing | |
2991 | **/ | |
2992 | static void ipr_slave_destroy(struct scsi_device *sdev) | |
2993 | { | |
2994 | struct ipr_resource_entry *res; | |
2995 | struct ipr_ioa_cfg *ioa_cfg; | |
2996 | unsigned long lock_flags = 0; | |
2997 | ||
2998 | ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
2999 | ||
3000 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3001 | res = (struct ipr_resource_entry *) sdev->hostdata; | |
3002 | if (res) { | |
3003 | sdev->hostdata = NULL; | |
3004 | res->sdev = NULL; | |
3005 | } | |
3006 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3007 | } | |
3008 | ||
3009 | /** | |
3010 | * ipr_slave_configure - Configure a SCSI device | |
3011 | * @sdev: scsi device struct | |
3012 | * | |
3013 | * This function configures the specified scsi device. | |
3014 | * | |
3015 | * Return value: | |
3016 | * 0 on success | |
3017 | **/ | |
3018 | static int ipr_slave_configure(struct scsi_device *sdev) | |
3019 | { | |
3020 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
3021 | struct ipr_resource_entry *res; | |
3022 | unsigned long lock_flags = 0; | |
3023 | ||
3024 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3025 | res = sdev->hostdata; | |
3026 | if (res) { | |
3027 | if (ipr_is_af_dasd_device(res)) | |
3028 | sdev->type = TYPE_RAID; | |
0726ce26 | 3029 | if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { |
1da177e4 | 3030 | sdev->scsi_level = 4; |
0726ce26 BK |
3031 | sdev->no_uld_attach = 1; |
3032 | } | |
1da177e4 LT |
3033 | if (ipr_is_vset_device(res)) { |
3034 | sdev->timeout = IPR_VSET_RW_TIMEOUT; | |
3035 | blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); | |
3036 | } | |
3037 | if (IPR_IS_DASD_DEVICE(res->cfgte.std_inq_data)) | |
3038 | sdev->allow_restart = 1; | |
3039 | scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); | |
3040 | } | |
3041 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3042 | return 0; | |
3043 | } | |
3044 | ||
3045 | /** | |
3046 | * ipr_slave_alloc - Prepare for commands to a device. | |
3047 | * @sdev: scsi device struct | |
3048 | * | |
3049 | * This function saves a pointer to the resource entry | |
3050 | * in the scsi device struct if the device exists. We | |
3051 | * can then use this pointer in ipr_queuecommand when | |
3052 | * handling new commands. | |
3053 | * | |
3054 | * Return value: | |
692aebfc | 3055 | * 0 on success / -ENXIO if device does not exist |
1da177e4 LT |
3056 | **/ |
3057 | static int ipr_slave_alloc(struct scsi_device *sdev) | |
3058 | { | |
3059 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
3060 | struct ipr_resource_entry *res; | |
3061 | unsigned long lock_flags; | |
692aebfc | 3062 | int rc = -ENXIO; |
1da177e4 LT |
3063 | |
3064 | sdev->hostdata = NULL; | |
3065 | ||
3066 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3067 | ||
3068 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3069 | if ((res->cfgte.res_addr.bus == sdev->channel) && | |
3070 | (res->cfgte.res_addr.target == sdev->id) && | |
3071 | (res->cfgte.res_addr.lun == sdev->lun)) { | |
3072 | res->sdev = sdev; | |
3073 | res->add_to_ml = 0; | |
3074 | res->in_erp = 0; | |
3075 | sdev->hostdata = res; | |
3076 | res->needs_sync_complete = 1; | |
692aebfc | 3077 | rc = 0; |
1da177e4 LT |
3078 | break; |
3079 | } | |
3080 | } | |
3081 | ||
3082 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3083 | ||
692aebfc | 3084 | return rc; |
1da177e4 LT |
3085 | } |
3086 | ||
3087 | /** | |
3088 | * ipr_eh_host_reset - Reset the host adapter | |
3089 | * @scsi_cmd: scsi command struct | |
3090 | * | |
3091 | * Return value: | |
3092 | * SUCCESS / FAILED | |
3093 | **/ | |
df0ae249 | 3094 | static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd) |
1da177e4 LT |
3095 | { |
3096 | struct ipr_ioa_cfg *ioa_cfg; | |
3097 | int rc; | |
3098 | ||
3099 | ENTER; | |
3100 | ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; | |
3101 | ||
3102 | dev_err(&ioa_cfg->pdev->dev, | |
3103 | "Adapter being reset as a result of error recovery.\n"); | |
3104 | ||
3105 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
3106 | ioa_cfg->sdt_state = GET_DUMP; | |
3107 | ||
3108 | rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV); | |
3109 | ||
3110 | LEAVE; | |
3111 | return rc; | |
3112 | } | |
3113 | ||
df0ae249 JG |
3114 | static int ipr_eh_host_reset(struct scsi_cmnd * cmd) |
3115 | { | |
3116 | int rc; | |
3117 | ||
3118 | spin_lock_irq(cmd->device->host->host_lock); | |
3119 | rc = __ipr_eh_host_reset(cmd); | |
3120 | spin_unlock_irq(cmd->device->host->host_lock); | |
3121 | ||
3122 | return rc; | |
3123 | } | |
3124 | ||
1da177e4 LT |
3125 | /** |
3126 | * ipr_eh_dev_reset - Reset the device | |
3127 | * @scsi_cmd: scsi command struct | |
3128 | * | |
3129 | * This function issues a device reset to the affected device. | |
3130 | * A LUN reset will be sent to the device first. If that does | |
3131 | * not work, a target reset will be sent. | |
3132 | * | |
3133 | * Return value: | |
3134 | * SUCCESS / FAILED | |
3135 | **/ | |
94d0e7b8 | 3136 | static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd) |
1da177e4 LT |
3137 | { |
3138 | struct ipr_cmnd *ipr_cmd; | |
3139 | struct ipr_ioa_cfg *ioa_cfg; | |
3140 | struct ipr_resource_entry *res; | |
3141 | struct ipr_cmd_pkt *cmd_pkt; | |
3142 | u32 ioasc; | |
3143 | ||
3144 | ENTER; | |
3145 | ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; | |
3146 | res = scsi_cmd->device->hostdata; | |
3147 | ||
3148 | if (!res || (!ipr_is_gscsi(res) && !ipr_is_vset_device(res))) | |
3149 | return FAILED; | |
3150 | ||
3151 | /* | |
3152 | * If we are currently going through reset/reload, return failed. This will force the | |
3153 | * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the | |
3154 | * reset to complete | |
3155 | */ | |
3156 | if (ioa_cfg->in_reset_reload) | |
3157 | return FAILED; | |
3158 | if (ioa_cfg->ioa_is_dead) | |
3159 | return FAILED; | |
3160 | ||
3161 | list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { | |
3162 | if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) { | |
3163 | if (ipr_cmd->scsi_cmd) | |
3164 | ipr_cmd->done = ipr_scsi_eh_done; | |
3165 | } | |
3166 | } | |
3167 | ||
3168 | res->resetting_device = 1; | |
3169 | ||
3170 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
3171 | ||
3172 | ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle; | |
3173 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; | |
3174 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
3175 | cmd_pkt->cdb[0] = IPR_RESET_DEVICE; | |
3176 | ||
3177 | ipr_sdev_err(scsi_cmd->device, "Resetting device\n"); | |
3178 | ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); | |
3179 | ||
3180 | ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
3181 | ||
3182 | res->resetting_device = 0; | |
3183 | ||
3184 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
3185 | ||
3186 | LEAVE; | |
3187 | return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS); | |
3188 | } | |
3189 | ||
94d0e7b8 JG |
3190 | static int ipr_eh_dev_reset(struct scsi_cmnd * cmd) |
3191 | { | |
3192 | int rc; | |
3193 | ||
3194 | spin_lock_irq(cmd->device->host->host_lock); | |
3195 | rc = __ipr_eh_dev_reset(cmd); | |
3196 | spin_unlock_irq(cmd->device->host->host_lock); | |
3197 | ||
3198 | return rc; | |
3199 | } | |
3200 | ||
1da177e4 LT |
3201 | /** |
3202 | * ipr_bus_reset_done - Op done function for bus reset. | |
3203 | * @ipr_cmd: ipr command struct | |
3204 | * | |
3205 | * This function is the op done function for a bus reset | |
3206 | * | |
3207 | * Return value: | |
3208 | * none | |
3209 | **/ | |
3210 | static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) | |
3211 | { | |
3212 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
3213 | struct ipr_resource_entry *res; | |
3214 | ||
3215 | ENTER; | |
3216 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3217 | if (!memcmp(&res->cfgte.res_handle, &ipr_cmd->ioarcb.res_handle, | |
3218 | sizeof(res->cfgte.res_handle))) { | |
3219 | scsi_report_bus_reset(ioa_cfg->host, res->cfgte.res_addr.bus); | |
3220 | break; | |
3221 | } | |
3222 | } | |
3223 | ||
3224 | /* | |
3225 | * If abort has not completed, indicate the reset has, else call the | |
3226 | * abort's done function to wake the sleeping eh thread | |
3227 | */ | |
3228 | if (ipr_cmd->sibling->sibling) | |
3229 | ipr_cmd->sibling->sibling = NULL; | |
3230 | else | |
3231 | ipr_cmd->sibling->done(ipr_cmd->sibling); | |
3232 | ||
3233 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
3234 | LEAVE; | |
3235 | } | |
3236 | ||
3237 | /** | |
3238 | * ipr_abort_timeout - An abort task has timed out | |
3239 | * @ipr_cmd: ipr command struct | |
3240 | * | |
3241 | * This function handles when an abort task times out. If this | |
3242 | * happens we issue a bus reset since we have resources tied | |
3243 | * up that must be freed before returning to the midlayer. | |
3244 | * | |
3245 | * Return value: | |
3246 | * none | |
3247 | **/ | |
3248 | static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd) | |
3249 | { | |
3250 | struct ipr_cmnd *reset_cmd; | |
3251 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
3252 | struct ipr_cmd_pkt *cmd_pkt; | |
3253 | unsigned long lock_flags = 0; | |
3254 | ||
3255 | ENTER; | |
3256 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3257 | if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { | |
3258 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3259 | return; | |
3260 | } | |
3261 | ||
3262 | ipr_sdev_err(ipr_cmd->u.sdev, "Abort timed out. Resetting bus\n"); | |
3263 | reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
3264 | ipr_cmd->sibling = reset_cmd; | |
3265 | reset_cmd->sibling = ipr_cmd; | |
3266 | reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; | |
3267 | cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; | |
3268 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
3269 | cmd_pkt->cdb[0] = IPR_RESET_DEVICE; | |
3270 | cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; | |
3271 | ||
3272 | ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); | |
3273 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3274 | LEAVE; | |
3275 | } | |
3276 | ||
3277 | /** | |
3278 | * ipr_cancel_op - Cancel specified op | |
3279 | * @scsi_cmd: scsi command struct | |
3280 | * | |
3281 | * This function cancels specified op. | |
3282 | * | |
3283 | * Return value: | |
3284 | * SUCCESS / FAILED | |
3285 | **/ | |
3286 | static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd) | |
3287 | { | |
3288 | struct ipr_cmnd *ipr_cmd; | |
3289 | struct ipr_ioa_cfg *ioa_cfg; | |
3290 | struct ipr_resource_entry *res; | |
3291 | struct ipr_cmd_pkt *cmd_pkt; | |
3292 | u32 ioasc; | |
3293 | int op_found = 0; | |
3294 | ||
3295 | ENTER; | |
3296 | ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; | |
3297 | res = scsi_cmd->device->hostdata; | |
3298 | ||
8fa728a2 JG |
3299 | /* If we are currently going through reset/reload, return failed. |
3300 | * This will force the mid-layer to call ipr_eh_host_reset, | |
3301 | * which will then go to sleep and wait for the reset to complete | |
3302 | */ | |
3303 | if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead) | |
3304 | return FAILED; | |
1da177e4 LT |
3305 | if (!res || (!ipr_is_gscsi(res) && !ipr_is_vset_device(res))) |
3306 | return FAILED; | |
3307 | ||
3308 | list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { | |
3309 | if (ipr_cmd->scsi_cmd == scsi_cmd) { | |
3310 | ipr_cmd->done = ipr_scsi_eh_done; | |
3311 | op_found = 1; | |
3312 | break; | |
3313 | } | |
3314 | } | |
3315 | ||
3316 | if (!op_found) | |
3317 | return SUCCESS; | |
3318 | ||
3319 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
3320 | ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle; | |
3321 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; | |
3322 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
3323 | cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; | |
3324 | ipr_cmd->u.sdev = scsi_cmd->device; | |
3325 | ||
3326 | ipr_sdev_err(scsi_cmd->device, "Aborting command: %02X\n", scsi_cmd->cmnd[0]); | |
3327 | ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); | |
3328 | ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
3329 | ||
3330 | /* | |
3331 | * If the abort task timed out and we sent a bus reset, we will get | |
3332 | * one the following responses to the abort | |
3333 | */ | |
3334 | if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { | |
3335 | ioasc = 0; | |
3336 | ipr_trace; | |
3337 | } | |
3338 | ||
3339 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
3340 | res->needs_sync_complete = 1; | |
3341 | ||
3342 | LEAVE; | |
3343 | return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS); | |
3344 | } | |
3345 | ||
3346 | /** | |
3347 | * ipr_eh_abort - Abort a single op | |
3348 | * @scsi_cmd: scsi command struct | |
3349 | * | |
3350 | * Return value: | |
3351 | * SUCCESS / FAILED | |
3352 | **/ | |
3353 | static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd) | |
3354 | { | |
8fa728a2 JG |
3355 | unsigned long flags; |
3356 | int rc; | |
1da177e4 LT |
3357 | |
3358 | ENTER; | |
1da177e4 | 3359 | |
8fa728a2 JG |
3360 | spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); |
3361 | rc = ipr_cancel_op(scsi_cmd); | |
3362 | spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags); | |
1da177e4 LT |
3363 | |
3364 | LEAVE; | |
8fa728a2 | 3365 | return rc; |
1da177e4 LT |
3366 | } |
3367 | ||
3368 | /** | |
3369 | * ipr_handle_other_interrupt - Handle "other" interrupts | |
3370 | * @ioa_cfg: ioa config struct | |
3371 | * @int_reg: interrupt register | |
3372 | * | |
3373 | * Return value: | |
3374 | * IRQ_NONE / IRQ_HANDLED | |
3375 | **/ | |
3376 | static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, | |
3377 | volatile u32 int_reg) | |
3378 | { | |
3379 | irqreturn_t rc = IRQ_HANDLED; | |
3380 | ||
3381 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { | |
3382 | /* Mask the interrupt */ | |
3383 | writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg); | |
3384 | ||
3385 | /* Clear the interrupt */ | |
3386 | writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg); | |
3387 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
3388 | ||
3389 | list_del(&ioa_cfg->reset_cmd->queue); | |
3390 | del_timer(&ioa_cfg->reset_cmd->timer); | |
3391 | ipr_reset_ioa_job(ioa_cfg->reset_cmd); | |
3392 | } else { | |
3393 | if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) | |
3394 | ioa_cfg->ioa_unit_checked = 1; | |
3395 | else | |
3396 | dev_err(&ioa_cfg->pdev->dev, | |
3397 | "Permanent IOA failure. 0x%08X\n", int_reg); | |
3398 | ||
3399 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
3400 | ioa_cfg->sdt_state = GET_DUMP; | |
3401 | ||
3402 | ipr_mask_and_clear_interrupts(ioa_cfg, ~0); | |
3403 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
3404 | } | |
3405 | ||
3406 | return rc; | |
3407 | } | |
3408 | ||
3409 | /** | |
3410 | * ipr_isr - Interrupt service routine | |
3411 | * @irq: irq number | |
3412 | * @devp: pointer to ioa config struct | |
3413 | * @regs: pt_regs struct | |
3414 | * | |
3415 | * Return value: | |
3416 | * IRQ_NONE / IRQ_HANDLED | |
3417 | **/ | |
3418 | static irqreturn_t ipr_isr(int irq, void *devp, struct pt_regs *regs) | |
3419 | { | |
3420 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; | |
3421 | unsigned long lock_flags = 0; | |
3422 | volatile u32 int_reg, int_mask_reg; | |
3423 | u32 ioasc; | |
3424 | u16 cmd_index; | |
3425 | struct ipr_cmnd *ipr_cmd; | |
3426 | irqreturn_t rc = IRQ_NONE; | |
3427 | ||
3428 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3429 | ||
3430 | /* If interrupts are disabled, ignore the interrupt */ | |
3431 | if (!ioa_cfg->allow_interrupts) { | |
3432 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3433 | return IRQ_NONE; | |
3434 | } | |
3435 | ||
3436 | int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
3437 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; | |
3438 | ||
3439 | /* If an interrupt on the adapter did not occur, ignore it */ | |
3440 | if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) { | |
3441 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3442 | return IRQ_NONE; | |
3443 | } | |
3444 | ||
3445 | while (1) { | |
3446 | ipr_cmd = NULL; | |
3447 | ||
3448 | while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == | |
3449 | ioa_cfg->toggle_bit) { | |
3450 | ||
3451 | cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) & | |
3452 | IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; | |
3453 | ||
3454 | if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) { | |
3455 | ioa_cfg->errors_logged++; | |
3456 | dev_err(&ioa_cfg->pdev->dev, "Invalid response handle from IOA\n"); | |
3457 | ||
3458 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
3459 | ioa_cfg->sdt_state = GET_DUMP; | |
3460 | ||
3461 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
3462 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3463 | return IRQ_HANDLED; | |
3464 | } | |
3465 | ||
3466 | ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; | |
3467 | ||
3468 | ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
3469 | ||
3470 | ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc); | |
3471 | ||
3472 | list_del(&ipr_cmd->queue); | |
3473 | del_timer(&ipr_cmd->timer); | |
3474 | ipr_cmd->done(ipr_cmd); | |
3475 | ||
3476 | rc = IRQ_HANDLED; | |
3477 | ||
3478 | if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) { | |
3479 | ioa_cfg->hrrq_curr++; | |
3480 | } else { | |
3481 | ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; | |
3482 | ioa_cfg->toggle_bit ^= 1u; | |
3483 | } | |
3484 | } | |
3485 | ||
3486 | if (ipr_cmd != NULL) { | |
3487 | /* Clear the PCI interrupt */ | |
3488 | writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg); | |
3489 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; | |
3490 | } else | |
3491 | break; | |
3492 | } | |
3493 | ||
3494 | if (unlikely(rc == IRQ_NONE)) | |
3495 | rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); | |
3496 | ||
3497 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3498 | return rc; | |
3499 | } | |
3500 | ||
3501 | /** | |
3502 | * ipr_build_ioadl - Build a scatter/gather list and map the buffer | |
3503 | * @ioa_cfg: ioa config struct | |
3504 | * @ipr_cmd: ipr command struct | |
3505 | * | |
3506 | * Return value: | |
3507 | * 0 on success / -1 on failure | |
3508 | **/ | |
3509 | static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, | |
3510 | struct ipr_cmnd *ipr_cmd) | |
3511 | { | |
3512 | int i; | |
3513 | struct scatterlist *sglist; | |
3514 | u32 length; | |
3515 | u32 ioadl_flags = 0; | |
3516 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
3517 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
3518 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
3519 | ||
3520 | length = scsi_cmd->request_bufflen; | |
3521 | ||
3522 | if (length == 0) | |
3523 | return 0; | |
3524 | ||
3525 | if (scsi_cmd->use_sg) { | |
3526 | ipr_cmd->dma_use_sg = pci_map_sg(ioa_cfg->pdev, | |
3527 | scsi_cmd->request_buffer, | |
3528 | scsi_cmd->use_sg, | |
3529 | scsi_cmd->sc_data_direction); | |
3530 | ||
3531 | if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { | |
3532 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; | |
3533 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
3534 | ioarcb->write_data_transfer_length = cpu_to_be32(length); | |
3535 | ioarcb->write_ioadl_len = | |
3536 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
3537 | } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
3538 | ioadl_flags = IPR_IOADL_FLAGS_READ; | |
3539 | ioarcb->read_data_transfer_length = cpu_to_be32(length); | |
3540 | ioarcb->read_ioadl_len = | |
3541 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
3542 | } | |
3543 | ||
3544 | sglist = scsi_cmd->request_buffer; | |
3545 | ||
3546 | for (i = 0; i < ipr_cmd->dma_use_sg; i++) { | |
3547 | ioadl[i].flags_and_data_len = | |
3548 | cpu_to_be32(ioadl_flags | sg_dma_len(&sglist[i])); | |
3549 | ioadl[i].address = | |
3550 | cpu_to_be32(sg_dma_address(&sglist[i])); | |
3551 | } | |
3552 | ||
3553 | if (likely(ipr_cmd->dma_use_sg)) { | |
3554 | ioadl[i-1].flags_and_data_len |= | |
3555 | cpu_to_be32(IPR_IOADL_FLAGS_LAST); | |
3556 | return 0; | |
3557 | } else | |
3558 | dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); | |
3559 | } else { | |
3560 | if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { | |
3561 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; | |
3562 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
3563 | ioarcb->write_data_transfer_length = cpu_to_be32(length); | |
3564 | ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
3565 | } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
3566 | ioadl_flags = IPR_IOADL_FLAGS_READ; | |
3567 | ioarcb->read_data_transfer_length = cpu_to_be32(length); | |
3568 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
3569 | } | |
3570 | ||
3571 | ipr_cmd->dma_handle = pci_map_single(ioa_cfg->pdev, | |
3572 | scsi_cmd->request_buffer, length, | |
3573 | scsi_cmd->sc_data_direction); | |
3574 | ||
3575 | if (likely(!pci_dma_mapping_error(ipr_cmd->dma_handle))) { | |
3576 | ipr_cmd->dma_use_sg = 1; | |
3577 | ioadl[0].flags_and_data_len = | |
3578 | cpu_to_be32(ioadl_flags | length | IPR_IOADL_FLAGS_LAST); | |
3579 | ioadl[0].address = cpu_to_be32(ipr_cmd->dma_handle); | |
3580 | return 0; | |
3581 | } else | |
3582 | dev_err(&ioa_cfg->pdev->dev, "pci_map_single failed!\n"); | |
3583 | } | |
3584 | ||
3585 | return -1; | |
3586 | } | |
3587 | ||
3588 | /** | |
3589 | * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes | |
3590 | * @scsi_cmd: scsi command struct | |
3591 | * | |
3592 | * Return value: | |
3593 | * task attributes | |
3594 | **/ | |
3595 | static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd) | |
3596 | { | |
3597 | u8 tag[2]; | |
3598 | u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK; | |
3599 | ||
3600 | if (scsi_populate_tag_msg(scsi_cmd, tag)) { | |
3601 | switch (tag[0]) { | |
3602 | case MSG_SIMPLE_TAG: | |
3603 | rc = IPR_FLAGS_LO_SIMPLE_TASK; | |
3604 | break; | |
3605 | case MSG_HEAD_TAG: | |
3606 | rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK; | |
3607 | break; | |
3608 | case MSG_ORDERED_TAG: | |
3609 | rc = IPR_FLAGS_LO_ORDERED_TASK; | |
3610 | break; | |
3611 | }; | |
3612 | } | |
3613 | ||
3614 | return rc; | |
3615 | } | |
3616 | ||
3617 | /** | |
3618 | * ipr_erp_done - Process completion of ERP for a device | |
3619 | * @ipr_cmd: ipr command struct | |
3620 | * | |
3621 | * This function copies the sense buffer into the scsi_cmd | |
3622 | * struct and pushes the scsi_done function. | |
3623 | * | |
3624 | * Return value: | |
3625 | * nothing | |
3626 | **/ | |
3627 | static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) | |
3628 | { | |
3629 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
3630 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; | |
3631 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
3632 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
3633 | ||
3634 | if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { | |
3635 | scsi_cmd->result |= (DID_ERROR << 16); | |
3636 | ipr_sdev_err(scsi_cmd->device, | |
3637 | "Request Sense failed with IOASC: 0x%08X\n", ioasc); | |
3638 | } else { | |
3639 | memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, | |
3640 | SCSI_SENSE_BUFFERSIZE); | |
3641 | } | |
3642 | ||
3643 | if (res) { | |
3644 | res->needs_sync_complete = 1; | |
3645 | res->in_erp = 0; | |
3646 | } | |
3647 | ipr_unmap_sglist(ioa_cfg, ipr_cmd); | |
3648 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
3649 | scsi_cmd->scsi_done(scsi_cmd); | |
3650 | } | |
3651 | ||
3652 | /** | |
3653 | * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP | |
3654 | * @ipr_cmd: ipr command struct | |
3655 | * | |
3656 | * Return value: | |
3657 | * none | |
3658 | **/ | |
3659 | static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) | |
3660 | { | |
3661 | struct ipr_ioarcb *ioarcb; | |
3662 | struct ipr_ioasa *ioasa; | |
3663 | ||
3664 | ioarcb = &ipr_cmd->ioarcb; | |
3665 | ioasa = &ipr_cmd->ioasa; | |
3666 | ||
3667 | memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); | |
3668 | ioarcb->write_data_transfer_length = 0; | |
3669 | ioarcb->read_data_transfer_length = 0; | |
3670 | ioarcb->write_ioadl_len = 0; | |
3671 | ioarcb->read_ioadl_len = 0; | |
3672 | ioasa->ioasc = 0; | |
3673 | ioasa->residual_data_len = 0; | |
3674 | } | |
3675 | ||
3676 | /** | |
3677 | * ipr_erp_request_sense - Send request sense to a device | |
3678 | * @ipr_cmd: ipr command struct | |
3679 | * | |
3680 | * This function sends a request sense to a device as a result | |
3681 | * of a check condition. | |
3682 | * | |
3683 | * Return value: | |
3684 | * nothing | |
3685 | **/ | |
3686 | static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) | |
3687 | { | |
3688 | struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; | |
3689 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
3690 | ||
3691 | if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { | |
3692 | ipr_erp_done(ipr_cmd); | |
3693 | return; | |
3694 | } | |
3695 | ||
3696 | ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); | |
3697 | ||
3698 | cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; | |
3699 | cmd_pkt->cdb[0] = REQUEST_SENSE; | |
3700 | cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; | |
3701 | cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; | |
3702 | cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; | |
3703 | cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); | |
3704 | ||
3705 | ipr_cmd->ioadl[0].flags_and_data_len = | |
3706 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | SCSI_SENSE_BUFFERSIZE); | |
3707 | ipr_cmd->ioadl[0].address = | |
3708 | cpu_to_be32(ipr_cmd->sense_buffer_dma); | |
3709 | ||
3710 | ipr_cmd->ioarcb.read_ioadl_len = | |
3711 | cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
3712 | ipr_cmd->ioarcb.read_data_transfer_length = | |
3713 | cpu_to_be32(SCSI_SENSE_BUFFERSIZE); | |
3714 | ||
3715 | ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout, | |
3716 | IPR_REQUEST_SENSE_TIMEOUT * 2); | |
3717 | } | |
3718 | ||
3719 | /** | |
3720 | * ipr_erp_cancel_all - Send cancel all to a device | |
3721 | * @ipr_cmd: ipr command struct | |
3722 | * | |
3723 | * This function sends a cancel all to a device to clear the | |
3724 | * queue. If we are running TCQ on the device, QERR is set to 1, | |
3725 | * which means all outstanding ops have been dropped on the floor. | |
3726 | * Cancel all will return them to us. | |
3727 | * | |
3728 | * Return value: | |
3729 | * nothing | |
3730 | **/ | |
3731 | static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) | |
3732 | { | |
3733 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
3734 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; | |
3735 | struct ipr_cmd_pkt *cmd_pkt; | |
3736 | ||
3737 | res->in_erp = 1; | |
3738 | ||
3739 | ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); | |
3740 | ||
3741 | if (!scsi_get_tag_type(scsi_cmd->device)) { | |
3742 | ipr_erp_request_sense(ipr_cmd); | |
3743 | return; | |
3744 | } | |
3745 | ||
3746 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; | |
3747 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
3748 | cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; | |
3749 | ||
3750 | ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout, | |
3751 | IPR_CANCEL_ALL_TIMEOUT); | |
3752 | } | |
3753 | ||
3754 | /** | |
3755 | * ipr_dump_ioasa - Dump contents of IOASA | |
3756 | * @ioa_cfg: ioa config struct | |
3757 | * @ipr_cmd: ipr command struct | |
3758 | * | |
3759 | * This function is invoked by the interrupt handler when ops | |
3760 | * fail. It will log the IOASA if appropriate. Only called | |
3761 | * for GPDD ops. | |
3762 | * | |
3763 | * Return value: | |
3764 | * none | |
3765 | **/ | |
3766 | static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, | |
3767 | struct ipr_cmnd *ipr_cmd) | |
3768 | { | |
3769 | int i; | |
3770 | u16 data_len; | |
3771 | u32 ioasc; | |
3772 | struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; | |
3773 | __be32 *ioasa_data = (__be32 *)ioasa; | |
3774 | int error_index; | |
3775 | ||
3776 | ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK; | |
3777 | ||
3778 | if (0 == ioasc) | |
3779 | return; | |
3780 | ||
3781 | if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) | |
3782 | return; | |
3783 | ||
3784 | error_index = ipr_get_error(ioasc); | |
3785 | ||
3786 | if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { | |
3787 | /* Don't log an error if the IOA already logged one */ | |
3788 | if (ioasa->ilid != 0) | |
3789 | return; | |
3790 | ||
3791 | if (ipr_error_table[error_index].log_ioasa == 0) | |
3792 | return; | |
3793 | } | |
3794 | ||
3795 | ipr_sdev_err(ipr_cmd->scsi_cmd->device, "%s\n", | |
3796 | ipr_error_table[error_index].error); | |
3797 | ||
3798 | if ((ioasa->u.gpdd.end_state <= ARRAY_SIZE(ipr_gpdd_dev_end_states)) && | |
3799 | (ioasa->u.gpdd.bus_phase <= ARRAY_SIZE(ipr_gpdd_dev_bus_phases))) { | |
3800 | ipr_sdev_err(ipr_cmd->scsi_cmd->device, | |
3801 | "Device End state: %s Phase: %s\n", | |
3802 | ipr_gpdd_dev_end_states[ioasa->u.gpdd.end_state], | |
3803 | ipr_gpdd_dev_bus_phases[ioasa->u.gpdd.bus_phase]); | |
3804 | } | |
3805 | ||
3806 | if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len)) | |
3807 | data_len = sizeof(struct ipr_ioasa); | |
3808 | else | |
3809 | data_len = be16_to_cpu(ioasa->ret_stat_len); | |
3810 | ||
3811 | ipr_err("IOASA Dump:\n"); | |
3812 | ||
3813 | for (i = 0; i < data_len / 4; i += 4) { | |
3814 | ipr_err("%08X: %08X %08X %08X %08X\n", i*4, | |
3815 | be32_to_cpu(ioasa_data[i]), | |
3816 | be32_to_cpu(ioasa_data[i+1]), | |
3817 | be32_to_cpu(ioasa_data[i+2]), | |
3818 | be32_to_cpu(ioasa_data[i+3])); | |
3819 | } | |
3820 | } | |
3821 | ||
3822 | /** | |
3823 | * ipr_gen_sense - Generate SCSI sense data from an IOASA | |
3824 | * @ioasa: IOASA | |
3825 | * @sense_buf: sense data buffer | |
3826 | * | |
3827 | * Return value: | |
3828 | * none | |
3829 | **/ | |
3830 | static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) | |
3831 | { | |
3832 | u32 failing_lba; | |
3833 | u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; | |
3834 | struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; | |
3835 | struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; | |
3836 | u32 ioasc = be32_to_cpu(ioasa->ioasc); | |
3837 | ||
3838 | memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); | |
3839 | ||
3840 | if (ioasc >= IPR_FIRST_DRIVER_IOASC) | |
3841 | return; | |
3842 | ||
3843 | ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; | |
3844 | ||
3845 | if (ipr_is_vset_device(res) && | |
3846 | ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && | |
3847 | ioasa->u.vset.failing_lba_hi != 0) { | |
3848 | sense_buf[0] = 0x72; | |
3849 | sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); | |
3850 | sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); | |
3851 | sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); | |
3852 | ||
3853 | sense_buf[7] = 12; | |
3854 | sense_buf[8] = 0; | |
3855 | sense_buf[9] = 0x0A; | |
3856 | sense_buf[10] = 0x80; | |
3857 | ||
3858 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); | |
3859 | ||
3860 | sense_buf[12] = (failing_lba & 0xff000000) >> 24; | |
3861 | sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; | |
3862 | sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; | |
3863 | sense_buf[15] = failing_lba & 0x000000ff; | |
3864 | ||
3865 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); | |
3866 | ||
3867 | sense_buf[16] = (failing_lba & 0xff000000) >> 24; | |
3868 | sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; | |
3869 | sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; | |
3870 | sense_buf[19] = failing_lba & 0x000000ff; | |
3871 | } else { | |
3872 | sense_buf[0] = 0x70; | |
3873 | sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); | |
3874 | sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); | |
3875 | sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); | |
3876 | ||
3877 | /* Illegal request */ | |
3878 | if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && | |
3879 | (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) { | |
3880 | sense_buf[7] = 10; /* additional length */ | |
3881 | ||
3882 | /* IOARCB was in error */ | |
3883 | if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) | |
3884 | sense_buf[15] = 0xC0; | |
3885 | else /* Parameter data was invalid */ | |
3886 | sense_buf[15] = 0x80; | |
3887 | ||
3888 | sense_buf[16] = | |
3889 | ((IPR_FIELD_POINTER_MASK & | |
3890 | be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff; | |
3891 | sense_buf[17] = | |
3892 | (IPR_FIELD_POINTER_MASK & | |
3893 | be32_to_cpu(ioasa->ioasc_specific)) & 0xff; | |
3894 | } else { | |
3895 | if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { | |
3896 | if (ipr_is_vset_device(res)) | |
3897 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); | |
3898 | else | |
3899 | failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); | |
3900 | ||
3901 | sense_buf[0] |= 0x80; /* Or in the Valid bit */ | |
3902 | sense_buf[3] = (failing_lba & 0xff000000) >> 24; | |
3903 | sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; | |
3904 | sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; | |
3905 | sense_buf[6] = failing_lba & 0x000000ff; | |
3906 | } | |
3907 | ||
3908 | sense_buf[7] = 6; /* additional length */ | |
3909 | } | |
3910 | } | |
3911 | } | |
3912 | ||
3913 | /** | |
3914 | * ipr_erp_start - Process an error response for a SCSI op | |
3915 | * @ioa_cfg: ioa config struct | |
3916 | * @ipr_cmd: ipr command struct | |
3917 | * | |
3918 | * This function determines whether or not to initiate ERP | |
3919 | * on the affected device. | |
3920 | * | |
3921 | * Return value: | |
3922 | * nothing | |
3923 | **/ | |
3924 | static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, | |
3925 | struct ipr_cmnd *ipr_cmd) | |
3926 | { | |
3927 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
3928 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; | |
3929 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
3930 | ||
3931 | if (!res) { | |
3932 | ipr_scsi_eh_done(ipr_cmd); | |
3933 | return; | |
3934 | } | |
3935 | ||
3936 | if (ipr_is_gscsi(res)) | |
3937 | ipr_dump_ioasa(ioa_cfg, ipr_cmd); | |
3938 | else | |
3939 | ipr_gen_sense(ipr_cmd); | |
3940 | ||
3941 | switch (ioasc & IPR_IOASC_IOASC_MASK) { | |
3942 | case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: | |
3943 | scsi_cmd->result |= (DID_IMM_RETRY << 16); | |
3944 | break; | |
3945 | case IPR_IOASC_IR_RESOURCE_HANDLE: | |
b0df54bb | 3946 | case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: |
1da177e4 LT |
3947 | scsi_cmd->result |= (DID_NO_CONNECT << 16); |
3948 | break; | |
3949 | case IPR_IOASC_HW_SEL_TIMEOUT: | |
3950 | scsi_cmd->result |= (DID_NO_CONNECT << 16); | |
3951 | res->needs_sync_complete = 1; | |
3952 | break; | |
3953 | case IPR_IOASC_SYNC_REQUIRED: | |
3954 | if (!res->in_erp) | |
3955 | res->needs_sync_complete = 1; | |
3956 | scsi_cmd->result |= (DID_IMM_RETRY << 16); | |
3957 | break; | |
3958 | case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ | |
b0df54bb | 3959 | case IPR_IOASA_IR_DUAL_IOA_DISABLED: |
1da177e4 LT |
3960 | scsi_cmd->result |= (DID_PASSTHROUGH << 16); |
3961 | break; | |
3962 | case IPR_IOASC_BUS_WAS_RESET: | |
3963 | case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: | |
3964 | /* | |
3965 | * Report the bus reset and ask for a retry. The device | |
3966 | * will give CC/UA the next command. | |
3967 | */ | |
3968 | if (!res->resetting_device) | |
3969 | scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); | |
3970 | scsi_cmd->result |= (DID_ERROR << 16); | |
3971 | res->needs_sync_complete = 1; | |
3972 | break; | |
3973 | case IPR_IOASC_HW_DEV_BUS_STATUS: | |
3974 | scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); | |
3975 | if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { | |
3976 | ipr_erp_cancel_all(ipr_cmd); | |
3977 | return; | |
3978 | } | |
3979 | res->needs_sync_complete = 1; | |
3980 | break; | |
3981 | case IPR_IOASC_NR_INIT_CMD_REQUIRED: | |
3982 | break; | |
3983 | default: | |
3984 | scsi_cmd->result |= (DID_ERROR << 16); | |
3985 | if (!ipr_is_vset_device(res)) | |
3986 | res->needs_sync_complete = 1; | |
3987 | break; | |
3988 | } | |
3989 | ||
3990 | ipr_unmap_sglist(ioa_cfg, ipr_cmd); | |
3991 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
3992 | scsi_cmd->scsi_done(scsi_cmd); | |
3993 | } | |
3994 | ||
3995 | /** | |
3996 | * ipr_scsi_done - mid-layer done function | |
3997 | * @ipr_cmd: ipr command struct | |
3998 | * | |
3999 | * This function is invoked by the interrupt handler for | |
4000 | * ops generated by the SCSI mid-layer | |
4001 | * | |
4002 | * Return value: | |
4003 | * none | |
4004 | **/ | |
4005 | static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) | |
4006 | { | |
4007 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4008 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
4009 | u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
4010 | ||
4011 | scsi_cmd->resid = be32_to_cpu(ipr_cmd->ioasa.residual_data_len); | |
4012 | ||
4013 | if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { | |
4014 | ipr_unmap_sglist(ioa_cfg, ipr_cmd); | |
4015 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4016 | scsi_cmd->scsi_done(scsi_cmd); | |
4017 | } else | |
4018 | ipr_erp_start(ioa_cfg, ipr_cmd); | |
4019 | } | |
4020 | ||
4021 | /** | |
4022 | * ipr_save_ioafp_mode_select - Save adapters mode select data | |
4023 | * @ioa_cfg: ioa config struct | |
4024 | * @scsi_cmd: scsi command struct | |
4025 | * | |
4026 | * This function saves mode select data for the adapter to | |
4027 | * use following an adapter reset. | |
4028 | * | |
4029 | * Return value: | |
4030 | * 0 on success / SCSI_MLQUEUE_HOST_BUSY on failure | |
4031 | **/ | |
4032 | static int ipr_save_ioafp_mode_select(struct ipr_ioa_cfg *ioa_cfg, | |
4033 | struct scsi_cmnd *scsi_cmd) | |
4034 | { | |
4035 | if (!ioa_cfg->saved_mode_pages) { | |
4036 | ioa_cfg->saved_mode_pages = kmalloc(sizeof(struct ipr_mode_pages), | |
4037 | GFP_ATOMIC); | |
4038 | if (!ioa_cfg->saved_mode_pages) { | |
4039 | dev_err(&ioa_cfg->pdev->dev, | |
4040 | "IOA mode select buffer allocation failed\n"); | |
4041 | return SCSI_MLQUEUE_HOST_BUSY; | |
4042 | } | |
4043 | } | |
4044 | ||
4045 | memcpy(ioa_cfg->saved_mode_pages, scsi_cmd->buffer, scsi_cmd->cmnd[4]); | |
4046 | ioa_cfg->saved_mode_page_len = scsi_cmd->cmnd[4]; | |
4047 | return 0; | |
4048 | } | |
4049 | ||
4050 | /** | |
4051 | * ipr_queuecommand - Queue a mid-layer request | |
4052 | * @scsi_cmd: scsi command struct | |
4053 | * @done: done function | |
4054 | * | |
4055 | * This function queues a request generated by the mid-layer. | |
4056 | * | |
4057 | * Return value: | |
4058 | * 0 on success | |
4059 | * SCSI_MLQUEUE_DEVICE_BUSY if device is busy | |
4060 | * SCSI_MLQUEUE_HOST_BUSY if host is busy | |
4061 | **/ | |
4062 | static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd, | |
4063 | void (*done) (struct scsi_cmnd *)) | |
4064 | { | |
4065 | struct ipr_ioa_cfg *ioa_cfg; | |
4066 | struct ipr_resource_entry *res; | |
4067 | struct ipr_ioarcb *ioarcb; | |
4068 | struct ipr_cmnd *ipr_cmd; | |
4069 | int rc = 0; | |
4070 | ||
4071 | scsi_cmd->scsi_done = done; | |
4072 | ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; | |
4073 | res = scsi_cmd->device->hostdata; | |
4074 | scsi_cmd->result = (DID_OK << 16); | |
4075 | ||
4076 | /* | |
4077 | * We are currently blocking all devices due to a host reset | |
4078 | * We have told the host to stop giving us new requests, but | |
4079 | * ERP ops don't count. FIXME | |
4080 | */ | |
4081 | if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead)) | |
4082 | return SCSI_MLQUEUE_HOST_BUSY; | |
4083 | ||
4084 | /* | |
4085 | * FIXME - Create scsi_set_host_offline interface | |
4086 | * and the ioa_is_dead check can be removed | |
4087 | */ | |
4088 | if (unlikely(ioa_cfg->ioa_is_dead || !res)) { | |
4089 | memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); | |
4090 | scsi_cmd->result = (DID_NO_CONNECT << 16); | |
4091 | scsi_cmd->scsi_done(scsi_cmd); | |
4092 | return 0; | |
4093 | } | |
4094 | ||
4095 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
4096 | ioarcb = &ipr_cmd->ioarcb; | |
4097 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
4098 | ||
4099 | memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); | |
4100 | ipr_cmd->scsi_cmd = scsi_cmd; | |
4101 | ioarcb->res_handle = res->cfgte.res_handle; | |
4102 | ipr_cmd->done = ipr_scsi_done; | |
4103 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr)); | |
4104 | ||
4105 | if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { | |
4106 | if (scsi_cmd->underflow == 0) | |
4107 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; | |
4108 | ||
4109 | if (res->needs_sync_complete) { | |
4110 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; | |
4111 | res->needs_sync_complete = 0; | |
4112 | } | |
4113 | ||
4114 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; | |
4115 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; | |
4116 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; | |
4117 | ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd); | |
4118 | } | |
4119 | ||
4120 | if (scsi_cmd->cmnd[0] >= 0xC0 && | |
4121 | (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) | |
4122 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
4123 | ||
4124 | if (ipr_is_ioa_resource(res) && scsi_cmd->cmnd[0] == MODE_SELECT) | |
4125 | rc = ipr_save_ioafp_mode_select(ioa_cfg, scsi_cmd); | |
4126 | ||
4127 | if (likely(rc == 0)) | |
4128 | rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); | |
4129 | ||
4130 | if (likely(rc == 0)) { | |
4131 | mb(); | |
4132 | writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), | |
4133 | ioa_cfg->regs.ioarrin_reg); | |
4134 | } else { | |
4135 | list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4136 | return SCSI_MLQUEUE_HOST_BUSY; | |
4137 | } | |
4138 | ||
4139 | return 0; | |
4140 | } | |
4141 | ||
4142 | /** | |
4143 | * ipr_info - Get information about the card/driver | |
4144 | * @scsi_host: scsi host struct | |
4145 | * | |
4146 | * Return value: | |
4147 | * pointer to buffer with description string | |
4148 | **/ | |
4149 | static const char * ipr_ioa_info(struct Scsi_Host *host) | |
4150 | { | |
4151 | static char buffer[512]; | |
4152 | struct ipr_ioa_cfg *ioa_cfg; | |
4153 | unsigned long lock_flags = 0; | |
4154 | ||
4155 | ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; | |
4156 | ||
4157 | spin_lock_irqsave(host->host_lock, lock_flags); | |
4158 | sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type); | |
4159 | spin_unlock_irqrestore(host->host_lock, lock_flags); | |
4160 | ||
4161 | return buffer; | |
4162 | } | |
4163 | ||
4164 | static struct scsi_host_template driver_template = { | |
4165 | .module = THIS_MODULE, | |
4166 | .name = "IPR", | |
4167 | .info = ipr_ioa_info, | |
4168 | .queuecommand = ipr_queuecommand, | |
4169 | .eh_abort_handler = ipr_eh_abort, | |
4170 | .eh_device_reset_handler = ipr_eh_dev_reset, | |
4171 | .eh_host_reset_handler = ipr_eh_host_reset, | |
4172 | .slave_alloc = ipr_slave_alloc, | |
4173 | .slave_configure = ipr_slave_configure, | |
4174 | .slave_destroy = ipr_slave_destroy, | |
4175 | .change_queue_depth = ipr_change_queue_depth, | |
4176 | .change_queue_type = ipr_change_queue_type, | |
4177 | .bios_param = ipr_biosparam, | |
4178 | .can_queue = IPR_MAX_COMMANDS, | |
4179 | .this_id = -1, | |
4180 | .sg_tablesize = IPR_MAX_SGLIST, | |
4181 | .max_sectors = IPR_IOA_MAX_SECTORS, | |
4182 | .cmd_per_lun = IPR_MAX_CMD_PER_LUN, | |
4183 | .use_clustering = ENABLE_CLUSTERING, | |
4184 | .shost_attrs = ipr_ioa_attrs, | |
4185 | .sdev_attrs = ipr_dev_attrs, | |
4186 | .proc_name = IPR_NAME | |
4187 | }; | |
4188 | ||
4189 | #ifdef CONFIG_PPC_PSERIES | |
4190 | static const u16 ipr_blocked_processors[] = { | |
4191 | PV_NORTHSTAR, | |
4192 | PV_PULSAR, | |
4193 | PV_POWER4, | |
4194 | PV_ICESTAR, | |
4195 | PV_SSTAR, | |
4196 | PV_POWER4p, | |
4197 | PV_630, | |
4198 | PV_630p | |
4199 | }; | |
4200 | ||
4201 | /** | |
4202 | * ipr_invalid_adapter - Determine if this adapter is supported on this hardware | |
4203 | * @ioa_cfg: ioa cfg struct | |
4204 | * | |
4205 | * Adapters that use Gemstone revision < 3.1 do not work reliably on | |
4206 | * certain pSeries hardware. This function determines if the given | |
4207 | * adapter is in one of these confgurations or not. | |
4208 | * | |
4209 | * Return value: | |
4210 | * 1 if adapter is not supported / 0 if adapter is supported | |
4211 | **/ | |
4212 | static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) | |
4213 | { | |
4214 | u8 rev_id; | |
4215 | int i; | |
4216 | ||
4217 | if (ioa_cfg->type == 0x5702) { | |
4218 | if (pci_read_config_byte(ioa_cfg->pdev, PCI_REVISION_ID, | |
4219 | &rev_id) == PCIBIOS_SUCCESSFUL) { | |
4220 | if (rev_id < 4) { | |
4221 | for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){ | |
4222 | if (__is_processor(ipr_blocked_processors[i])) | |
4223 | return 1; | |
4224 | } | |
4225 | } | |
4226 | } | |
4227 | } | |
4228 | return 0; | |
4229 | } | |
4230 | #else | |
4231 | #define ipr_invalid_adapter(ioa_cfg) 0 | |
4232 | #endif | |
4233 | ||
4234 | /** | |
4235 | * ipr_ioa_bringdown_done - IOA bring down completion. | |
4236 | * @ipr_cmd: ipr command struct | |
4237 | * | |
4238 | * This function processes the completion of an adapter bring down. | |
4239 | * It wakes any reset sleepers. | |
4240 | * | |
4241 | * Return value: | |
4242 | * IPR_RC_JOB_RETURN | |
4243 | **/ | |
4244 | static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) | |
4245 | { | |
4246 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4247 | ||
4248 | ENTER; | |
4249 | ioa_cfg->in_reset_reload = 0; | |
4250 | ioa_cfg->reset_retries = 0; | |
4251 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4252 | wake_up_all(&ioa_cfg->reset_wait_q); | |
4253 | ||
4254 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
4255 | scsi_unblock_requests(ioa_cfg->host); | |
4256 | spin_lock_irq(ioa_cfg->host->host_lock); | |
4257 | LEAVE; | |
4258 | ||
4259 | return IPR_RC_JOB_RETURN; | |
4260 | } | |
4261 | ||
4262 | /** | |
4263 | * ipr_ioa_reset_done - IOA reset completion. | |
4264 | * @ipr_cmd: ipr command struct | |
4265 | * | |
4266 | * This function processes the completion of an adapter reset. | |
4267 | * It schedules any necessary mid-layer add/removes and | |
4268 | * wakes any reset sleepers. | |
4269 | * | |
4270 | * Return value: | |
4271 | * IPR_RC_JOB_RETURN | |
4272 | **/ | |
4273 | static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) | |
4274 | { | |
4275 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4276 | struct ipr_resource_entry *res; | |
4277 | struct ipr_hostrcb *hostrcb, *temp; | |
4278 | int i = 0; | |
4279 | ||
4280 | ENTER; | |
4281 | ioa_cfg->in_reset_reload = 0; | |
4282 | ioa_cfg->allow_cmds = 1; | |
4283 | ioa_cfg->reset_cmd = NULL; | |
4284 | ||
4285 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
4286 | if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) { | |
4287 | ipr_trace; | |
4288 | break; | |
4289 | } | |
4290 | } | |
4291 | schedule_work(&ioa_cfg->work_q); | |
4292 | ||
4293 | list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) { | |
4294 | list_del(&hostrcb->queue); | |
4295 | if (i++ < IPR_NUM_LOG_HCAMS) | |
4296 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); | |
4297 | else | |
4298 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); | |
4299 | } | |
4300 | ||
4301 | dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n"); | |
4302 | ||
4303 | ioa_cfg->reset_retries = 0; | |
4304 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4305 | wake_up_all(&ioa_cfg->reset_wait_q); | |
4306 | ||
4307 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
4308 | scsi_unblock_requests(ioa_cfg->host); | |
4309 | spin_lock_irq(ioa_cfg->host->host_lock); | |
4310 | ||
4311 | if (!ioa_cfg->allow_cmds) | |
4312 | scsi_block_requests(ioa_cfg->host); | |
4313 | ||
4314 | LEAVE; | |
4315 | return IPR_RC_JOB_RETURN; | |
4316 | } | |
4317 | ||
4318 | /** | |
4319 | * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer | |
4320 | * @supported_dev: supported device struct | |
4321 | * @vpids: vendor product id struct | |
4322 | * | |
4323 | * Return value: | |
4324 | * none | |
4325 | **/ | |
4326 | static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, | |
4327 | struct ipr_std_inq_vpids *vpids) | |
4328 | { | |
4329 | memset(supported_dev, 0, sizeof(struct ipr_supported_device)); | |
4330 | memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); | |
4331 | supported_dev->num_records = 1; | |
4332 | supported_dev->data_length = | |
4333 | cpu_to_be16(sizeof(struct ipr_supported_device)); | |
4334 | supported_dev->reserved = 0; | |
4335 | } | |
4336 | ||
4337 | /** | |
4338 | * ipr_set_supported_devs - Send Set Supported Devices for a device | |
4339 | * @ipr_cmd: ipr command struct | |
4340 | * | |
4341 | * This function send a Set Supported Devices to the adapter | |
4342 | * | |
4343 | * Return value: | |
4344 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
4345 | **/ | |
4346 | static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) | |
4347 | { | |
4348 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4349 | struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; | |
4350 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
4351 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
4352 | struct ipr_resource_entry *res = ipr_cmd->u.res; | |
4353 | ||
4354 | ipr_cmd->job_step = ipr_ioa_reset_done; | |
4355 | ||
4356 | list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { | |
d0ad6f50 | 4357 | if (!IPR_IS_DASD_DEVICE(res->cfgte.std_inq_data)) |
1da177e4 LT |
4358 | continue; |
4359 | ||
4360 | ipr_cmd->u.res = res; | |
4361 | ipr_set_sup_dev_dflt(supp_dev, &res->cfgte.std_inq_data.vpids); | |
4362 | ||
4363 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
4364 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
4365 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
4366 | ||
4367 | ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; | |
4368 | ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; | |
4369 | ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; | |
4370 | ||
4371 | ioadl->flags_and_data_len = cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | | |
4372 | sizeof(struct ipr_supported_device)); | |
4373 | ioadl->address = cpu_to_be32(ioa_cfg->vpd_cbs_dma + | |
4374 | offsetof(struct ipr_misc_cbs, supp_dev)); | |
4375 | ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
4376 | ioarcb->write_data_transfer_length = | |
4377 | cpu_to_be32(sizeof(struct ipr_supported_device)); | |
4378 | ||
4379 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, | |
4380 | IPR_SET_SUP_DEVICE_TIMEOUT); | |
4381 | ||
4382 | ipr_cmd->job_step = ipr_set_supported_devs; | |
4383 | return IPR_RC_JOB_RETURN; | |
4384 | } | |
4385 | ||
4386 | return IPR_RC_JOB_CONTINUE; | |
4387 | } | |
4388 | ||
62275040 BK |
4389 | /** |
4390 | * ipr_setup_write_cache - Disable write cache if needed | |
4391 | * @ipr_cmd: ipr command struct | |
4392 | * | |
4393 | * This function sets up adapters write cache to desired setting | |
4394 | * | |
4395 | * Return value: | |
4396 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
4397 | **/ | |
4398 | static int ipr_setup_write_cache(struct ipr_cmnd *ipr_cmd) | |
4399 | { | |
4400 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4401 | ||
4402 | ipr_cmd->job_step = ipr_set_supported_devs; | |
4403 | ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, | |
4404 | struct ipr_resource_entry, queue); | |
4405 | ||
4406 | if (ioa_cfg->cache_state != CACHE_DISABLED) | |
4407 | return IPR_RC_JOB_CONTINUE; | |
4408 | ||
4409 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
4410 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
4411 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; | |
4412 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; | |
4413 | ||
4414 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
4415 | ||
4416 | return IPR_RC_JOB_RETURN; | |
4417 | } | |
4418 | ||
1da177e4 LT |
4419 | /** |
4420 | * ipr_get_mode_page - Locate specified mode page | |
4421 | * @mode_pages: mode page buffer | |
4422 | * @page_code: page code to find | |
4423 | * @len: minimum required length for mode page | |
4424 | * | |
4425 | * Return value: | |
4426 | * pointer to mode page / NULL on failure | |
4427 | **/ | |
4428 | static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, | |
4429 | u32 page_code, u32 len) | |
4430 | { | |
4431 | struct ipr_mode_page_hdr *mode_hdr; | |
4432 | u32 page_length; | |
4433 | u32 length; | |
4434 | ||
4435 | if (!mode_pages || (mode_pages->hdr.length == 0)) | |
4436 | return NULL; | |
4437 | ||
4438 | length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; | |
4439 | mode_hdr = (struct ipr_mode_page_hdr *) | |
4440 | (mode_pages->data + mode_pages->hdr.block_desc_len); | |
4441 | ||
4442 | while (length) { | |
4443 | if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { | |
4444 | if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) | |
4445 | return mode_hdr; | |
4446 | break; | |
4447 | } else { | |
4448 | page_length = (sizeof(struct ipr_mode_page_hdr) + | |
4449 | mode_hdr->page_length); | |
4450 | length -= page_length; | |
4451 | mode_hdr = (struct ipr_mode_page_hdr *) | |
4452 | ((unsigned long)mode_hdr + page_length); | |
4453 | } | |
4454 | } | |
4455 | return NULL; | |
4456 | } | |
4457 | ||
4458 | /** | |
4459 | * ipr_check_term_power - Check for term power errors | |
4460 | * @ioa_cfg: ioa config struct | |
4461 | * @mode_pages: IOAFP mode pages buffer | |
4462 | * | |
4463 | * Check the IOAFP's mode page 28 for term power errors | |
4464 | * | |
4465 | * Return value: | |
4466 | * nothing | |
4467 | **/ | |
4468 | static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, | |
4469 | struct ipr_mode_pages *mode_pages) | |
4470 | { | |
4471 | int i; | |
4472 | int entry_length; | |
4473 | struct ipr_dev_bus_entry *bus; | |
4474 | struct ipr_mode_page28 *mode_page; | |
4475 | ||
4476 | mode_page = ipr_get_mode_page(mode_pages, 0x28, | |
4477 | sizeof(struct ipr_mode_page28)); | |
4478 | ||
4479 | entry_length = mode_page->entry_length; | |
4480 | ||
4481 | bus = mode_page->bus; | |
4482 | ||
4483 | for (i = 0; i < mode_page->num_entries; i++) { | |
4484 | if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { | |
4485 | dev_err(&ioa_cfg->pdev->dev, | |
4486 | "Term power is absent on scsi bus %d\n", | |
4487 | bus->res_addr.bus); | |
4488 | } | |
4489 | ||
4490 | bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); | |
4491 | } | |
4492 | } | |
4493 | ||
4494 | /** | |
4495 | * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table | |
4496 | * @ioa_cfg: ioa config struct | |
4497 | * | |
4498 | * Looks through the config table checking for SES devices. If | |
4499 | * the SES device is in the SES table indicating a maximum SCSI | |
4500 | * bus speed, the speed is limited for the bus. | |
4501 | * | |
4502 | * Return value: | |
4503 | * none | |
4504 | **/ | |
4505 | static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) | |
4506 | { | |
4507 | u32 max_xfer_rate; | |
4508 | int i; | |
4509 | ||
4510 | for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { | |
4511 | max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i, | |
4512 | ioa_cfg->bus_attr[i].bus_width); | |
4513 | ||
4514 | if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) | |
4515 | ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; | |
4516 | } | |
4517 | } | |
4518 | ||
4519 | /** | |
4520 | * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 | |
4521 | * @ioa_cfg: ioa config struct | |
4522 | * @mode_pages: mode page 28 buffer | |
4523 | * | |
4524 | * Updates mode page 28 based on driver configuration | |
4525 | * | |
4526 | * Return value: | |
4527 | * none | |
4528 | **/ | |
4529 | static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, | |
4530 | struct ipr_mode_pages *mode_pages) | |
4531 | { | |
4532 | int i, entry_length; | |
4533 | struct ipr_dev_bus_entry *bus; | |
4534 | struct ipr_bus_attributes *bus_attr; | |
4535 | struct ipr_mode_page28 *mode_page; | |
4536 | ||
4537 | mode_page = ipr_get_mode_page(mode_pages, 0x28, | |
4538 | sizeof(struct ipr_mode_page28)); | |
4539 | ||
4540 | entry_length = mode_page->entry_length; | |
4541 | ||
4542 | /* Loop for each device bus entry */ | |
4543 | for (i = 0, bus = mode_page->bus; | |
4544 | i < mode_page->num_entries; | |
4545 | i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { | |
4546 | if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { | |
4547 | dev_err(&ioa_cfg->pdev->dev, | |
4548 | "Invalid resource address reported: 0x%08X\n", | |
4549 | IPR_GET_PHYS_LOC(bus->res_addr)); | |
4550 | continue; | |
4551 | } | |
4552 | ||
4553 | bus_attr = &ioa_cfg->bus_attr[i]; | |
4554 | bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; | |
4555 | bus->bus_width = bus_attr->bus_width; | |
4556 | bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); | |
4557 | bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; | |
4558 | if (bus_attr->qas_enabled) | |
4559 | bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; | |
4560 | else | |
4561 | bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; | |
4562 | } | |
4563 | } | |
4564 | ||
4565 | /** | |
4566 | * ipr_build_mode_select - Build a mode select command | |
4567 | * @ipr_cmd: ipr command struct | |
4568 | * @res_handle: resource handle to send command to | |
4569 | * @parm: Byte 2 of Mode Sense command | |
4570 | * @dma_addr: DMA buffer address | |
4571 | * @xfer_len: data transfer length | |
4572 | * | |
4573 | * Return value: | |
4574 | * none | |
4575 | **/ | |
4576 | static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, | |
4577 | __be32 res_handle, u8 parm, u32 dma_addr, | |
4578 | u8 xfer_len) | |
4579 | { | |
4580 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
4581 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
4582 | ||
4583 | ioarcb->res_handle = res_handle; | |
4584 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
4585 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
4586 | ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; | |
4587 | ioarcb->cmd_pkt.cdb[1] = parm; | |
4588 | ioarcb->cmd_pkt.cdb[4] = xfer_len; | |
4589 | ||
4590 | ioadl->flags_and_data_len = | |
4591 | cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | xfer_len); | |
4592 | ioadl->address = cpu_to_be32(dma_addr); | |
4593 | ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
4594 | ioarcb->write_data_transfer_length = cpu_to_be32(xfer_len); | |
4595 | } | |
4596 | ||
4597 | /** | |
4598 | * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA | |
4599 | * @ipr_cmd: ipr command struct | |
4600 | * | |
4601 | * This function sets up the SCSI bus attributes and sends | |
4602 | * a Mode Select for Page 28 to activate them. | |
4603 | * | |
4604 | * Return value: | |
4605 | * IPR_RC_JOB_RETURN | |
4606 | **/ | |
4607 | static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) | |
4608 | { | |
4609 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4610 | struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; | |
4611 | int length; | |
4612 | ||
4613 | ENTER; | |
4614 | if (ioa_cfg->saved_mode_pages) { | |
4615 | memcpy(mode_pages, ioa_cfg->saved_mode_pages, | |
4616 | ioa_cfg->saved_mode_page_len); | |
4617 | length = ioa_cfg->saved_mode_page_len; | |
4618 | } else { | |
4619 | ipr_scsi_bus_speed_limit(ioa_cfg); | |
4620 | ipr_check_term_power(ioa_cfg, mode_pages); | |
4621 | ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); | |
4622 | length = mode_pages->hdr.length + 1; | |
4623 | mode_pages->hdr.length = 0; | |
4624 | } | |
4625 | ||
4626 | ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, | |
4627 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), | |
4628 | length); | |
4629 | ||
62275040 | 4630 | ipr_cmd->job_step = ipr_setup_write_cache; |
1da177e4 LT |
4631 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); |
4632 | ||
4633 | LEAVE; | |
4634 | return IPR_RC_JOB_RETURN; | |
4635 | } | |
4636 | ||
4637 | /** | |
4638 | * ipr_build_mode_sense - Builds a mode sense command | |
4639 | * @ipr_cmd: ipr command struct | |
4640 | * @res: resource entry struct | |
4641 | * @parm: Byte 2 of mode sense command | |
4642 | * @dma_addr: DMA address of mode sense buffer | |
4643 | * @xfer_len: Size of DMA buffer | |
4644 | * | |
4645 | * Return value: | |
4646 | * none | |
4647 | **/ | |
4648 | static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, | |
4649 | __be32 res_handle, | |
4650 | u8 parm, u32 dma_addr, u8 xfer_len) | |
4651 | { | |
4652 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
4653 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
4654 | ||
4655 | ioarcb->res_handle = res_handle; | |
4656 | ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; | |
4657 | ioarcb->cmd_pkt.cdb[2] = parm; | |
4658 | ioarcb->cmd_pkt.cdb[4] = xfer_len; | |
4659 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
4660 | ||
4661 | ioadl->flags_and_data_len = | |
4662 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len); | |
4663 | ioadl->address = cpu_to_be32(dma_addr); | |
4664 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
4665 | ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len); | |
4666 | } | |
4667 | ||
4668 | /** | |
4669 | * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA | |
4670 | * @ipr_cmd: ipr command struct | |
4671 | * | |
4672 | * This function send a Page 28 mode sense to the IOA to | |
4673 | * retrieve SCSI bus attributes. | |
4674 | * | |
4675 | * Return value: | |
4676 | * IPR_RC_JOB_RETURN | |
4677 | **/ | |
4678 | static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) | |
4679 | { | |
4680 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4681 | ||
4682 | ENTER; | |
4683 | ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), | |
4684 | 0x28, ioa_cfg->vpd_cbs_dma + | |
4685 | offsetof(struct ipr_misc_cbs, mode_pages), | |
4686 | sizeof(struct ipr_mode_pages)); | |
4687 | ||
4688 | ipr_cmd->job_step = ipr_ioafp_mode_select_page28; | |
4689 | ||
4690 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
4691 | ||
4692 | LEAVE; | |
4693 | return IPR_RC_JOB_RETURN; | |
4694 | } | |
4695 | ||
4696 | /** | |
4697 | * ipr_init_res_table - Initialize the resource table | |
4698 | * @ipr_cmd: ipr command struct | |
4699 | * | |
4700 | * This function looks through the existing resource table, comparing | |
4701 | * it with the config table. This function will take care of old/new | |
4702 | * devices and schedule adding/removing them from the mid-layer | |
4703 | * as appropriate. | |
4704 | * | |
4705 | * Return value: | |
4706 | * IPR_RC_JOB_CONTINUE | |
4707 | **/ | |
4708 | static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) | |
4709 | { | |
4710 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4711 | struct ipr_resource_entry *res, *temp; | |
4712 | struct ipr_config_table_entry *cfgte; | |
4713 | int found, i; | |
4714 | LIST_HEAD(old_res); | |
4715 | ||
4716 | ENTER; | |
4717 | if (ioa_cfg->cfg_table->hdr.flags & IPR_UCODE_DOWNLOAD_REQ) | |
4718 | dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n"); | |
4719 | ||
4720 | list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) | |
4721 | list_move_tail(&res->queue, &old_res); | |
4722 | ||
4723 | for (i = 0; i < ioa_cfg->cfg_table->hdr.num_entries; i++) { | |
4724 | cfgte = &ioa_cfg->cfg_table->dev[i]; | |
4725 | found = 0; | |
4726 | ||
4727 | list_for_each_entry_safe(res, temp, &old_res, queue) { | |
4728 | if (!memcmp(&res->cfgte.res_addr, | |
4729 | &cfgte->res_addr, sizeof(cfgte->res_addr))) { | |
4730 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); | |
4731 | found = 1; | |
4732 | break; | |
4733 | } | |
4734 | } | |
4735 | ||
4736 | if (!found) { | |
4737 | if (list_empty(&ioa_cfg->free_res_q)) { | |
4738 | dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n"); | |
4739 | break; | |
4740 | } | |
4741 | ||
4742 | found = 1; | |
4743 | res = list_entry(ioa_cfg->free_res_q.next, | |
4744 | struct ipr_resource_entry, queue); | |
4745 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); | |
4746 | ipr_init_res_entry(res); | |
4747 | res->add_to_ml = 1; | |
4748 | } | |
4749 | ||
4750 | if (found) | |
4751 | memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry)); | |
4752 | } | |
4753 | ||
4754 | list_for_each_entry_safe(res, temp, &old_res, queue) { | |
4755 | if (res->sdev) { | |
4756 | res->del_from_ml = 1; | |
4757 | res->sdev->hostdata = NULL; | |
4758 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); | |
4759 | } else { | |
4760 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); | |
4761 | } | |
4762 | } | |
4763 | ||
4764 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; | |
4765 | ||
4766 | LEAVE; | |
4767 | return IPR_RC_JOB_CONTINUE; | |
4768 | } | |
4769 | ||
4770 | /** | |
4771 | * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. | |
4772 | * @ipr_cmd: ipr command struct | |
4773 | * | |
4774 | * This function sends a Query IOA Configuration command | |
4775 | * to the adapter to retrieve the IOA configuration table. | |
4776 | * | |
4777 | * Return value: | |
4778 | * IPR_RC_JOB_RETURN | |
4779 | **/ | |
4780 | static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) | |
4781 | { | |
4782 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4783 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
4784 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
4785 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; | |
4786 | ||
4787 | ENTER; | |
4788 | dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", | |
4789 | ucode_vpd->major_release, ucode_vpd->card_type, | |
4790 | ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); | |
4791 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
4792 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
4793 | ||
4794 | ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; | |
4795 | ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_config_table) >> 8) & 0xff; | |
4796 | ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_config_table) & 0xff; | |
4797 | ||
4798 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
4799 | ioarcb->read_data_transfer_length = | |
4800 | cpu_to_be32(sizeof(struct ipr_config_table)); | |
4801 | ||
4802 | ioadl->address = cpu_to_be32(ioa_cfg->cfg_table_dma); | |
4803 | ioadl->flags_and_data_len = | |
4804 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(struct ipr_config_table)); | |
4805 | ||
4806 | ipr_cmd->job_step = ipr_init_res_table; | |
4807 | ||
4808 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
4809 | ||
4810 | LEAVE; | |
4811 | return IPR_RC_JOB_RETURN; | |
4812 | } | |
4813 | ||
4814 | /** | |
4815 | * ipr_ioafp_inquiry - Send an Inquiry to the adapter. | |
4816 | * @ipr_cmd: ipr command struct | |
4817 | * | |
4818 | * This utility function sends an inquiry to the adapter. | |
4819 | * | |
4820 | * Return value: | |
4821 | * none | |
4822 | **/ | |
4823 | static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, | |
4824 | u32 dma_addr, u8 xfer_len) | |
4825 | { | |
4826 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
4827 | struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; | |
4828 | ||
4829 | ENTER; | |
4830 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
4831 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
4832 | ||
4833 | ioarcb->cmd_pkt.cdb[0] = INQUIRY; | |
4834 | ioarcb->cmd_pkt.cdb[1] = flags; | |
4835 | ioarcb->cmd_pkt.cdb[2] = page; | |
4836 | ioarcb->cmd_pkt.cdb[4] = xfer_len; | |
4837 | ||
4838 | ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
4839 | ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len); | |
4840 | ||
4841 | ioadl->address = cpu_to_be32(dma_addr); | |
4842 | ioadl->flags_and_data_len = | |
4843 | cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len); | |
4844 | ||
4845 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
4846 | LEAVE; | |
4847 | } | |
4848 | ||
62275040 BK |
4849 | /** |
4850 | * ipr_inquiry_page_supported - Is the given inquiry page supported | |
4851 | * @page0: inquiry page 0 buffer | |
4852 | * @page: page code. | |
4853 | * | |
4854 | * This function determines if the specified inquiry page is supported. | |
4855 | * | |
4856 | * Return value: | |
4857 | * 1 if page is supported / 0 if not | |
4858 | **/ | |
4859 | static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) | |
4860 | { | |
4861 | int i; | |
4862 | ||
4863 | for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) | |
4864 | if (page0->page[i] == page) | |
4865 | return 1; | |
4866 | ||
4867 | return 0; | |
4868 | } | |
4869 | ||
1da177e4 LT |
4870 | /** |
4871 | * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. | |
4872 | * @ipr_cmd: ipr command struct | |
4873 | * | |
4874 | * This function sends a Page 3 inquiry to the adapter | |
4875 | * to retrieve software VPD information. | |
4876 | * | |
4877 | * Return value: | |
4878 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
4879 | **/ | |
4880 | static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) | |
62275040 BK |
4881 | { |
4882 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4883 | struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; | |
4884 | ||
4885 | ENTER; | |
4886 | ||
4887 | if (!ipr_inquiry_page_supported(page0, 1)) | |
4888 | ioa_cfg->cache_state = CACHE_NONE; | |
4889 | ||
4890 | ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; | |
4891 | ||
4892 | ipr_ioafp_inquiry(ipr_cmd, 1, 3, | |
4893 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), | |
4894 | sizeof(struct ipr_inquiry_page3)); | |
4895 | ||
4896 | LEAVE; | |
4897 | return IPR_RC_JOB_RETURN; | |
4898 | } | |
4899 | ||
4900 | /** | |
4901 | * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. | |
4902 | * @ipr_cmd: ipr command struct | |
4903 | * | |
4904 | * This function sends a Page 0 inquiry to the adapter | |
4905 | * to retrieve supported inquiry pages. | |
4906 | * | |
4907 | * Return value: | |
4908 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
4909 | **/ | |
4910 | static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) | |
1da177e4 LT |
4911 | { |
4912 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4913 | char type[5]; | |
4914 | ||
4915 | ENTER; | |
4916 | ||
4917 | /* Grab the type out of the VPD and store it away */ | |
4918 | memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); | |
4919 | type[4] = '\0'; | |
4920 | ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); | |
4921 | ||
62275040 | 4922 | ipr_cmd->job_step = ipr_ioafp_page3_inquiry; |
1da177e4 | 4923 | |
62275040 BK |
4924 | ipr_ioafp_inquiry(ipr_cmd, 1, 0, |
4925 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), | |
4926 | sizeof(struct ipr_inquiry_page0)); | |
1da177e4 LT |
4927 | |
4928 | LEAVE; | |
4929 | return IPR_RC_JOB_RETURN; | |
4930 | } | |
4931 | ||
4932 | /** | |
4933 | * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. | |
4934 | * @ipr_cmd: ipr command struct | |
4935 | * | |
4936 | * This function sends a standard inquiry to the adapter. | |
4937 | * | |
4938 | * Return value: | |
4939 | * IPR_RC_JOB_RETURN | |
4940 | **/ | |
4941 | static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) | |
4942 | { | |
4943 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4944 | ||
4945 | ENTER; | |
62275040 | 4946 | ipr_cmd->job_step = ipr_ioafp_page0_inquiry; |
1da177e4 LT |
4947 | |
4948 | ipr_ioafp_inquiry(ipr_cmd, 0, 0, | |
4949 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), | |
4950 | sizeof(struct ipr_ioa_vpd)); | |
4951 | ||
4952 | LEAVE; | |
4953 | return IPR_RC_JOB_RETURN; | |
4954 | } | |
4955 | ||
4956 | /** | |
4957 | * ipr_ioafp_indentify_hrrq - Send Identify Host RRQ. | |
4958 | * @ipr_cmd: ipr command struct | |
4959 | * | |
4960 | * This function send an Identify Host Request Response Queue | |
4961 | * command to establish the HRRQ with the adapter. | |
4962 | * | |
4963 | * Return value: | |
4964 | * IPR_RC_JOB_RETURN | |
4965 | **/ | |
4966 | static int ipr_ioafp_indentify_hrrq(struct ipr_cmnd *ipr_cmd) | |
4967 | { | |
4968 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4969 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
4970 | ||
4971 | ENTER; | |
4972 | dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n"); | |
4973 | ||
4974 | ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; | |
4975 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
4976 | ||
4977 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
4978 | ioarcb->cmd_pkt.cdb[2] = | |
4979 | ((u32) ioa_cfg->host_rrq_dma >> 24) & 0xff; | |
4980 | ioarcb->cmd_pkt.cdb[3] = | |
4981 | ((u32) ioa_cfg->host_rrq_dma >> 16) & 0xff; | |
4982 | ioarcb->cmd_pkt.cdb[4] = | |
4983 | ((u32) ioa_cfg->host_rrq_dma >> 8) & 0xff; | |
4984 | ioarcb->cmd_pkt.cdb[5] = | |
4985 | ((u32) ioa_cfg->host_rrq_dma) & 0xff; | |
4986 | ioarcb->cmd_pkt.cdb[7] = | |
4987 | ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff; | |
4988 | ioarcb->cmd_pkt.cdb[8] = | |
4989 | (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff; | |
4990 | ||
4991 | ipr_cmd->job_step = ipr_ioafp_std_inquiry; | |
4992 | ||
4993 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
4994 | ||
4995 | LEAVE; | |
4996 | return IPR_RC_JOB_RETURN; | |
4997 | } | |
4998 | ||
4999 | /** | |
5000 | * ipr_reset_timer_done - Adapter reset timer function | |
5001 | * @ipr_cmd: ipr command struct | |
5002 | * | |
5003 | * Description: This function is used in adapter reset processing | |
5004 | * for timing events. If the reset_cmd pointer in the IOA | |
5005 | * config struct is not this adapter's we are doing nested | |
5006 | * resets and fail_all_ops will take care of freeing the | |
5007 | * command block. | |
5008 | * | |
5009 | * Return value: | |
5010 | * none | |
5011 | **/ | |
5012 | static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd) | |
5013 | { | |
5014 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5015 | unsigned long lock_flags = 0; | |
5016 | ||
5017 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
5018 | ||
5019 | if (ioa_cfg->reset_cmd == ipr_cmd) { | |
5020 | list_del(&ipr_cmd->queue); | |
5021 | ipr_cmd->done(ipr_cmd); | |
5022 | } | |
5023 | ||
5024 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
5025 | } | |
5026 | ||
5027 | /** | |
5028 | * ipr_reset_start_timer - Start a timer for adapter reset job | |
5029 | * @ipr_cmd: ipr command struct | |
5030 | * @timeout: timeout value | |
5031 | * | |
5032 | * Description: This function is used in adapter reset processing | |
5033 | * for timing events. If the reset_cmd pointer in the IOA | |
5034 | * config struct is not this adapter's we are doing nested | |
5035 | * resets and fail_all_ops will take care of freeing the | |
5036 | * command block. | |
5037 | * | |
5038 | * Return value: | |
5039 | * none | |
5040 | **/ | |
5041 | static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, | |
5042 | unsigned long timeout) | |
5043 | { | |
5044 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); | |
5045 | ipr_cmd->done = ipr_reset_ioa_job; | |
5046 | ||
5047 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; | |
5048 | ipr_cmd->timer.expires = jiffies + timeout; | |
5049 | ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done; | |
5050 | add_timer(&ipr_cmd->timer); | |
5051 | } | |
5052 | ||
5053 | /** | |
5054 | * ipr_init_ioa_mem - Initialize ioa_cfg control block | |
5055 | * @ioa_cfg: ioa cfg struct | |
5056 | * | |
5057 | * Return value: | |
5058 | * nothing | |
5059 | **/ | |
5060 | static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) | |
5061 | { | |
5062 | memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS); | |
5063 | ||
5064 | /* Initialize Host RRQ pointers */ | |
5065 | ioa_cfg->hrrq_start = ioa_cfg->host_rrq; | |
5066 | ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1]; | |
5067 | ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; | |
5068 | ioa_cfg->toggle_bit = 1; | |
5069 | ||
5070 | /* Zero out config table */ | |
5071 | memset(ioa_cfg->cfg_table, 0, sizeof(struct ipr_config_table)); | |
5072 | } | |
5073 | ||
5074 | /** | |
5075 | * ipr_reset_enable_ioa - Enable the IOA following a reset. | |
5076 | * @ipr_cmd: ipr command struct | |
5077 | * | |
5078 | * This function reinitializes some control blocks and | |
5079 | * enables destructive diagnostics on the adapter. | |
5080 | * | |
5081 | * Return value: | |
5082 | * IPR_RC_JOB_RETURN | |
5083 | **/ | |
5084 | static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) | |
5085 | { | |
5086 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5087 | volatile u32 int_reg; | |
5088 | ||
5089 | ENTER; | |
5090 | ipr_cmd->job_step = ipr_ioafp_indentify_hrrq; | |
5091 | ipr_init_ioa_mem(ioa_cfg); | |
5092 | ||
5093 | ioa_cfg->allow_interrupts = 1; | |
5094 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
5095 | ||
5096 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { | |
5097 | writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), | |
5098 | ioa_cfg->regs.clr_interrupt_mask_reg); | |
5099 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
5100 | return IPR_RC_JOB_CONTINUE; | |
5101 | } | |
5102 | ||
5103 | /* Enable destructive diagnostics on IOA */ | |
5104 | writel(IPR_DOORBELL, ioa_cfg->regs.set_uproc_interrupt_reg); | |
5105 | ||
5106 | writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg); | |
5107 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
5108 | ||
5109 | dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n"); | |
5110 | ||
5111 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; | |
5112 | ipr_cmd->timer.expires = jiffies + (ipr_transop_timeout * HZ); | |
5113 | ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; | |
5114 | ipr_cmd->done = ipr_reset_ioa_job; | |
5115 | add_timer(&ipr_cmd->timer); | |
5116 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
5117 | ||
5118 | LEAVE; | |
5119 | return IPR_RC_JOB_RETURN; | |
5120 | } | |
5121 | ||
5122 | /** | |
5123 | * ipr_reset_wait_for_dump - Wait for a dump to timeout. | |
5124 | * @ipr_cmd: ipr command struct | |
5125 | * | |
5126 | * This function is invoked when an adapter dump has run out | |
5127 | * of processing time. | |
5128 | * | |
5129 | * Return value: | |
5130 | * IPR_RC_JOB_CONTINUE | |
5131 | **/ | |
5132 | static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) | |
5133 | { | |
5134 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5135 | ||
5136 | if (ioa_cfg->sdt_state == GET_DUMP) | |
5137 | ioa_cfg->sdt_state = ABORT_DUMP; | |
5138 | ||
5139 | ipr_cmd->job_step = ipr_reset_alert; | |
5140 | ||
5141 | return IPR_RC_JOB_CONTINUE; | |
5142 | } | |
5143 | ||
5144 | /** | |
5145 | * ipr_unit_check_no_data - Log a unit check/no data error log | |
5146 | * @ioa_cfg: ioa config struct | |
5147 | * | |
5148 | * Logs an error indicating the adapter unit checked, but for some | |
5149 | * reason, we were unable to fetch the unit check buffer. | |
5150 | * | |
5151 | * Return value: | |
5152 | * nothing | |
5153 | **/ | |
5154 | static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) | |
5155 | { | |
5156 | ioa_cfg->errors_logged++; | |
5157 | dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n"); | |
5158 | } | |
5159 | ||
5160 | /** | |
5161 | * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA | |
5162 | * @ioa_cfg: ioa config struct | |
5163 | * | |
5164 | * Fetches the unit check buffer from the adapter by clocking the data | |
5165 | * through the mailbox register. | |
5166 | * | |
5167 | * Return value: | |
5168 | * nothing | |
5169 | **/ | |
5170 | static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) | |
5171 | { | |
5172 | unsigned long mailbox; | |
5173 | struct ipr_hostrcb *hostrcb; | |
5174 | struct ipr_uc_sdt sdt; | |
5175 | int rc, length; | |
5176 | ||
5177 | mailbox = readl(ioa_cfg->ioa_mailbox); | |
5178 | ||
5179 | if (!ipr_sdt_is_fmt2(mailbox)) { | |
5180 | ipr_unit_check_no_data(ioa_cfg); | |
5181 | return; | |
5182 | } | |
5183 | ||
5184 | memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); | |
5185 | rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt, | |
5186 | (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); | |
5187 | ||
5188 | if (rc || (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE) || | |
5189 | !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY)) { | |
5190 | ipr_unit_check_no_data(ioa_cfg); | |
5191 | return; | |
5192 | } | |
5193 | ||
5194 | /* Find length of the first sdt entry (UC buffer) */ | |
5195 | length = (be32_to_cpu(sdt.entry[0].end_offset) - | |
5196 | be32_to_cpu(sdt.entry[0].bar_str_offset)) & IPR_FMT2_MBX_ADDR_MASK; | |
5197 | ||
5198 | hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, | |
5199 | struct ipr_hostrcb, queue); | |
5200 | list_del(&hostrcb->queue); | |
5201 | memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); | |
5202 | ||
5203 | rc = ipr_get_ldump_data_section(ioa_cfg, | |
5204 | be32_to_cpu(sdt.entry[0].bar_str_offset), | |
5205 | (__be32 *)&hostrcb->hcam, | |
5206 | min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); | |
5207 | ||
5208 | if (!rc) | |
5209 | ipr_handle_log_data(ioa_cfg, hostrcb); | |
5210 | else | |
5211 | ipr_unit_check_no_data(ioa_cfg); | |
5212 | ||
5213 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); | |
5214 | } | |
5215 | ||
5216 | /** | |
5217 | * ipr_reset_restore_cfg_space - Restore PCI config space. | |
5218 | * @ipr_cmd: ipr command struct | |
5219 | * | |
5220 | * Description: This function restores the saved PCI config space of | |
5221 | * the adapter, fails all outstanding ops back to the callers, and | |
5222 | * fetches the dump/unit check if applicable to this reset. | |
5223 | * | |
5224 | * Return value: | |
5225 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5226 | **/ | |
5227 | static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) | |
5228 | { | |
5229 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5230 | int rc; | |
5231 | ||
5232 | ENTER; | |
b30197d2 | 5233 | pci_unblock_user_cfg_access(ioa_cfg->pdev); |
1da177e4 LT |
5234 | rc = pci_restore_state(ioa_cfg->pdev); |
5235 | ||
5236 | if (rc != PCIBIOS_SUCCESSFUL) { | |
5237 | ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); | |
5238 | return IPR_RC_JOB_CONTINUE; | |
5239 | } | |
5240 | ||
5241 | if (ipr_set_pcix_cmd_reg(ioa_cfg)) { | |
5242 | ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); | |
5243 | return IPR_RC_JOB_CONTINUE; | |
5244 | } | |
5245 | ||
5246 | ipr_fail_all_ops(ioa_cfg); | |
5247 | ||
5248 | if (ioa_cfg->ioa_unit_checked) { | |
5249 | ioa_cfg->ioa_unit_checked = 0; | |
5250 | ipr_get_unit_check_buffer(ioa_cfg); | |
5251 | ipr_cmd->job_step = ipr_reset_alert; | |
5252 | ipr_reset_start_timer(ipr_cmd, 0); | |
5253 | return IPR_RC_JOB_RETURN; | |
5254 | } | |
5255 | ||
5256 | if (ioa_cfg->in_ioa_bringdown) { | |
5257 | ipr_cmd->job_step = ipr_ioa_bringdown_done; | |
5258 | } else { | |
5259 | ipr_cmd->job_step = ipr_reset_enable_ioa; | |
5260 | ||
5261 | if (GET_DUMP == ioa_cfg->sdt_state) { | |
5262 | ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT); | |
5263 | ipr_cmd->job_step = ipr_reset_wait_for_dump; | |
5264 | schedule_work(&ioa_cfg->work_q); | |
5265 | return IPR_RC_JOB_RETURN; | |
5266 | } | |
5267 | } | |
5268 | ||
5269 | ENTER; | |
5270 | return IPR_RC_JOB_CONTINUE; | |
5271 | } | |
5272 | ||
5273 | /** | |
5274 | * ipr_reset_start_bist - Run BIST on the adapter. | |
5275 | * @ipr_cmd: ipr command struct | |
5276 | * | |
5277 | * Description: This function runs BIST on the adapter, then delays 2 seconds. | |
5278 | * | |
5279 | * Return value: | |
5280 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5281 | **/ | |
5282 | static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) | |
5283 | { | |
5284 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5285 | int rc; | |
5286 | ||
5287 | ENTER; | |
b30197d2 | 5288 | pci_block_user_cfg_access(ioa_cfg->pdev); |
1da177e4 LT |
5289 | rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); |
5290 | ||
5291 | if (rc != PCIBIOS_SUCCESSFUL) { | |
5292 | ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); | |
5293 | rc = IPR_RC_JOB_CONTINUE; | |
5294 | } else { | |
5295 | ipr_cmd->job_step = ipr_reset_restore_cfg_space; | |
5296 | ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); | |
5297 | rc = IPR_RC_JOB_RETURN; | |
5298 | } | |
5299 | ||
5300 | LEAVE; | |
5301 | return rc; | |
5302 | } | |
5303 | ||
5304 | /** | |
5305 | * ipr_reset_allowed - Query whether or not IOA can be reset | |
5306 | * @ioa_cfg: ioa config struct | |
5307 | * | |
5308 | * Return value: | |
5309 | * 0 if reset not allowed / non-zero if reset is allowed | |
5310 | **/ | |
5311 | static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) | |
5312 | { | |
5313 | volatile u32 temp_reg; | |
5314 | ||
5315 | temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
5316 | return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); | |
5317 | } | |
5318 | ||
5319 | /** | |
5320 | * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. | |
5321 | * @ipr_cmd: ipr command struct | |
5322 | * | |
5323 | * Description: This function waits for adapter permission to run BIST, | |
5324 | * then runs BIST. If the adapter does not give permission after a | |
5325 | * reasonable time, we will reset the adapter anyway. The impact of | |
5326 | * resetting the adapter without warning the adapter is the risk of | |
5327 | * losing the persistent error log on the adapter. If the adapter is | |
5328 | * reset while it is writing to the flash on the adapter, the flash | |
5329 | * segment will have bad ECC and be zeroed. | |
5330 | * | |
5331 | * Return value: | |
5332 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5333 | **/ | |
5334 | static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) | |
5335 | { | |
5336 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5337 | int rc = IPR_RC_JOB_RETURN; | |
5338 | ||
5339 | if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { | |
5340 | ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; | |
5341 | ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); | |
5342 | } else { | |
5343 | ipr_cmd->job_step = ipr_reset_start_bist; | |
5344 | rc = IPR_RC_JOB_CONTINUE; | |
5345 | } | |
5346 | ||
5347 | return rc; | |
5348 | } | |
5349 | ||
5350 | /** | |
5351 | * ipr_reset_alert_part2 - Alert the adapter of a pending reset | |
5352 | * @ipr_cmd: ipr command struct | |
5353 | * | |
5354 | * Description: This function alerts the adapter that it will be reset. | |
5355 | * If memory space is not currently enabled, proceed directly | |
5356 | * to running BIST on the adapter. The timer must always be started | |
5357 | * so we guarantee we do not run BIST from ipr_isr. | |
5358 | * | |
5359 | * Return value: | |
5360 | * IPR_RC_JOB_RETURN | |
5361 | **/ | |
5362 | static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) | |
5363 | { | |
5364 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5365 | u16 cmd_reg; | |
5366 | int rc; | |
5367 | ||
5368 | ENTER; | |
5369 | rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg); | |
5370 | ||
5371 | if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { | |
5372 | ipr_mask_and_clear_interrupts(ioa_cfg, ~0); | |
5373 | writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg); | |
5374 | ipr_cmd->job_step = ipr_reset_wait_to_start_bist; | |
5375 | } else { | |
5376 | ipr_cmd->job_step = ipr_reset_start_bist; | |
5377 | } | |
5378 | ||
5379 | ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; | |
5380 | ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); | |
5381 | ||
5382 | LEAVE; | |
5383 | return IPR_RC_JOB_RETURN; | |
5384 | } | |
5385 | ||
5386 | /** | |
5387 | * ipr_reset_ucode_download_done - Microcode download completion | |
5388 | * @ipr_cmd: ipr command struct | |
5389 | * | |
5390 | * Description: This function unmaps the microcode download buffer. | |
5391 | * | |
5392 | * Return value: | |
5393 | * IPR_RC_JOB_CONTINUE | |
5394 | **/ | |
5395 | static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) | |
5396 | { | |
5397 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5398 | struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; | |
5399 | ||
5400 | pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist, | |
5401 | sglist->num_sg, DMA_TO_DEVICE); | |
5402 | ||
5403 | ipr_cmd->job_step = ipr_reset_alert; | |
5404 | return IPR_RC_JOB_CONTINUE; | |
5405 | } | |
5406 | ||
5407 | /** | |
5408 | * ipr_reset_ucode_download - Download microcode to the adapter | |
5409 | * @ipr_cmd: ipr command struct | |
5410 | * | |
5411 | * Description: This function checks to see if it there is microcode | |
5412 | * to download to the adapter. If there is, a download is performed. | |
5413 | * | |
5414 | * Return value: | |
5415 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5416 | **/ | |
5417 | static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) | |
5418 | { | |
5419 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5420 | struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; | |
5421 | ||
5422 | ENTER; | |
5423 | ipr_cmd->job_step = ipr_reset_alert; | |
5424 | ||
5425 | if (!sglist) | |
5426 | return IPR_RC_JOB_CONTINUE; | |
5427 | ||
5428 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
5429 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
5430 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; | |
5431 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; | |
5432 | ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; | |
5433 | ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; | |
5434 | ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; | |
5435 | ||
12baa420 | 5436 | ipr_build_ucode_ioadl(ipr_cmd, sglist); |
1da177e4 LT |
5437 | ipr_cmd->job_step = ipr_reset_ucode_download_done; |
5438 | ||
5439 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, | |
5440 | IPR_WRITE_BUFFER_TIMEOUT); | |
5441 | ||
5442 | LEAVE; | |
5443 | return IPR_RC_JOB_RETURN; | |
5444 | } | |
5445 | ||
5446 | /** | |
5447 | * ipr_reset_shutdown_ioa - Shutdown the adapter | |
5448 | * @ipr_cmd: ipr command struct | |
5449 | * | |
5450 | * Description: This function issues an adapter shutdown of the | |
5451 | * specified type to the specified adapter as part of the | |
5452 | * adapter reset job. | |
5453 | * | |
5454 | * Return value: | |
5455 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
5456 | **/ | |
5457 | static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) | |
5458 | { | |
5459 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5460 | enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; | |
5461 | unsigned long timeout; | |
5462 | int rc = IPR_RC_JOB_CONTINUE; | |
5463 | ||
5464 | ENTER; | |
5465 | if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) { | |
5466 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
5467 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
5468 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; | |
5469 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; | |
5470 | ||
5471 | if (shutdown_type == IPR_SHUTDOWN_ABBREV) | |
5472 | timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; | |
5473 | else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) | |
5474 | timeout = IPR_INTERNAL_TIMEOUT; | |
5475 | else | |
5476 | timeout = IPR_SHUTDOWN_TIMEOUT; | |
5477 | ||
5478 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); | |
5479 | ||
5480 | rc = IPR_RC_JOB_RETURN; | |
5481 | ipr_cmd->job_step = ipr_reset_ucode_download; | |
5482 | } else | |
5483 | ipr_cmd->job_step = ipr_reset_alert; | |
5484 | ||
5485 | LEAVE; | |
5486 | return rc; | |
5487 | } | |
5488 | ||
5489 | /** | |
5490 | * ipr_reset_ioa_job - Adapter reset job | |
5491 | * @ipr_cmd: ipr command struct | |
5492 | * | |
5493 | * Description: This function is the job router for the adapter reset job. | |
5494 | * | |
5495 | * Return value: | |
5496 | * none | |
5497 | **/ | |
5498 | static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) | |
5499 | { | |
5500 | u32 rc, ioasc; | |
5501 | unsigned long scratch = ipr_cmd->u.scratch; | |
5502 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5503 | ||
5504 | do { | |
5505 | ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); | |
5506 | ||
5507 | if (ioa_cfg->reset_cmd != ipr_cmd) { | |
5508 | /* | |
5509 | * We are doing nested adapter resets and this is | |
5510 | * not the current reset job. | |
5511 | */ | |
5512 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
5513 | return; | |
5514 | } | |
5515 | ||
5516 | if (IPR_IOASC_SENSE_KEY(ioasc)) { | |
5517 | dev_err(&ioa_cfg->pdev->dev, | |
5518 | "0x%02X failed with IOASC: 0x%08X\n", | |
5519 | ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); | |
5520 | ||
5521 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
5522 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
5523 | return; | |
5524 | } | |
5525 | ||
5526 | ipr_reinit_ipr_cmnd(ipr_cmd); | |
5527 | ipr_cmd->u.scratch = scratch; | |
5528 | rc = ipr_cmd->job_step(ipr_cmd); | |
5529 | } while(rc == IPR_RC_JOB_CONTINUE); | |
5530 | } | |
5531 | ||
5532 | /** | |
5533 | * _ipr_initiate_ioa_reset - Initiate an adapter reset | |
5534 | * @ioa_cfg: ioa config struct | |
5535 | * @job_step: first job step of reset job | |
5536 | * @shutdown_type: shutdown type | |
5537 | * | |
5538 | * Description: This function will initiate the reset of the given adapter | |
5539 | * starting at the selected job step. | |
5540 | * If the caller needs to wait on the completion of the reset, | |
5541 | * the caller must sleep on the reset_wait_q. | |
5542 | * | |
5543 | * Return value: | |
5544 | * none | |
5545 | **/ | |
5546 | static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, | |
5547 | int (*job_step) (struct ipr_cmnd *), | |
5548 | enum ipr_shutdown_type shutdown_type) | |
5549 | { | |
5550 | struct ipr_cmnd *ipr_cmd; | |
5551 | ||
5552 | ioa_cfg->in_reset_reload = 1; | |
5553 | ioa_cfg->allow_cmds = 0; | |
5554 | scsi_block_requests(ioa_cfg->host); | |
5555 | ||
5556 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
5557 | ioa_cfg->reset_cmd = ipr_cmd; | |
5558 | ipr_cmd->job_step = job_step; | |
5559 | ipr_cmd->u.shutdown_type = shutdown_type; | |
5560 | ||
5561 | ipr_reset_ioa_job(ipr_cmd); | |
5562 | } | |
5563 | ||
5564 | /** | |
5565 | * ipr_initiate_ioa_reset - Initiate an adapter reset | |
5566 | * @ioa_cfg: ioa config struct | |
5567 | * @shutdown_type: shutdown type | |
5568 | * | |
5569 | * Description: This function will initiate the reset of the given adapter. | |
5570 | * If the caller needs to wait on the completion of the reset, | |
5571 | * the caller must sleep on the reset_wait_q. | |
5572 | * | |
5573 | * Return value: | |
5574 | * none | |
5575 | **/ | |
5576 | static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, | |
5577 | enum ipr_shutdown_type shutdown_type) | |
5578 | { | |
5579 | if (ioa_cfg->ioa_is_dead) | |
5580 | return; | |
5581 | ||
5582 | if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP) | |
5583 | ioa_cfg->sdt_state = ABORT_DUMP; | |
5584 | ||
5585 | if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { | |
5586 | dev_err(&ioa_cfg->pdev->dev, | |
5587 | "IOA taken offline - error recovery failed\n"); | |
5588 | ||
5589 | ioa_cfg->reset_retries = 0; | |
5590 | ioa_cfg->ioa_is_dead = 1; | |
5591 | ||
5592 | if (ioa_cfg->in_ioa_bringdown) { | |
5593 | ioa_cfg->reset_cmd = NULL; | |
5594 | ioa_cfg->in_reset_reload = 0; | |
5595 | ipr_fail_all_ops(ioa_cfg); | |
5596 | wake_up_all(&ioa_cfg->reset_wait_q); | |
5597 | ||
5598 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
5599 | scsi_unblock_requests(ioa_cfg->host); | |
5600 | spin_lock_irq(ioa_cfg->host->host_lock); | |
5601 | return; | |
5602 | } else { | |
5603 | ioa_cfg->in_ioa_bringdown = 1; | |
5604 | shutdown_type = IPR_SHUTDOWN_NONE; | |
5605 | } | |
5606 | } | |
5607 | ||
5608 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa, | |
5609 | shutdown_type); | |
5610 | } | |
5611 | ||
5612 | /** | |
5613 | * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) | |
5614 | * @ioa_cfg: ioa cfg struct | |
5615 | * | |
5616 | * Description: This is the second phase of adapter intialization | |
5617 | * This function takes care of initilizing the adapter to the point | |
5618 | * where it can accept new commands. | |
5619 | ||
5620 | * Return value: | |
5621 | * 0 on sucess / -EIO on failure | |
5622 | **/ | |
5623 | static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) | |
5624 | { | |
5625 | int rc = 0; | |
5626 | unsigned long host_lock_flags = 0; | |
5627 | ||
5628 | ENTER; | |
5629 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); | |
5630 | dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg); | |
5631 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, IPR_SHUTDOWN_NONE); | |
5632 | ||
5633 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
5634 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
5635 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); | |
5636 | ||
5637 | if (ioa_cfg->ioa_is_dead) { | |
5638 | rc = -EIO; | |
5639 | } else if (ipr_invalid_adapter(ioa_cfg)) { | |
5640 | if (!ipr_testmode) | |
5641 | rc = -EIO; | |
5642 | ||
5643 | dev_err(&ioa_cfg->pdev->dev, | |
5644 | "Adapter not supported in this hardware configuration.\n"); | |
5645 | } | |
5646 | ||
5647 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
5648 | ||
5649 | LEAVE; | |
5650 | return rc; | |
5651 | } | |
5652 | ||
5653 | /** | |
5654 | * ipr_free_cmd_blks - Frees command blocks allocated for an adapter | |
5655 | * @ioa_cfg: ioa config struct | |
5656 | * | |
5657 | * Return value: | |
5658 | * none | |
5659 | **/ | |
5660 | static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) | |
5661 | { | |
5662 | int i; | |
5663 | ||
5664 | for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { | |
5665 | if (ioa_cfg->ipr_cmnd_list[i]) | |
5666 | pci_pool_free(ioa_cfg->ipr_cmd_pool, | |
5667 | ioa_cfg->ipr_cmnd_list[i], | |
5668 | ioa_cfg->ipr_cmnd_list_dma[i]); | |
5669 | ||
5670 | ioa_cfg->ipr_cmnd_list[i] = NULL; | |
5671 | } | |
5672 | ||
5673 | if (ioa_cfg->ipr_cmd_pool) | |
5674 | pci_pool_destroy (ioa_cfg->ipr_cmd_pool); | |
5675 | ||
5676 | ioa_cfg->ipr_cmd_pool = NULL; | |
5677 | } | |
5678 | ||
5679 | /** | |
5680 | * ipr_free_mem - Frees memory allocated for an adapter | |
5681 | * @ioa_cfg: ioa cfg struct | |
5682 | * | |
5683 | * Return value: | |
5684 | * nothing | |
5685 | **/ | |
5686 | static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) | |
5687 | { | |
5688 | int i; | |
5689 | ||
5690 | kfree(ioa_cfg->res_entries); | |
5691 | pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs), | |
5692 | ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); | |
5693 | ipr_free_cmd_blks(ioa_cfg); | |
5694 | pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, | |
5695 | ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); | |
5696 | pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_config_table), | |
5697 | ioa_cfg->cfg_table, | |
5698 | ioa_cfg->cfg_table_dma); | |
5699 | ||
5700 | for (i = 0; i < IPR_NUM_HCAMS; i++) { | |
5701 | pci_free_consistent(ioa_cfg->pdev, | |
5702 | sizeof(struct ipr_hostrcb), | |
5703 | ioa_cfg->hostrcb[i], | |
5704 | ioa_cfg->hostrcb_dma[i]); | |
5705 | } | |
5706 | ||
5707 | ipr_free_dump(ioa_cfg); | |
5708 | kfree(ioa_cfg->saved_mode_pages); | |
5709 | kfree(ioa_cfg->trace); | |
5710 | } | |
5711 | ||
5712 | /** | |
5713 | * ipr_free_all_resources - Free all allocated resources for an adapter. | |
5714 | * @ipr_cmd: ipr command struct | |
5715 | * | |
5716 | * This function frees all allocated resources for the | |
5717 | * specified adapter. | |
5718 | * | |
5719 | * Return value: | |
5720 | * none | |
5721 | **/ | |
5722 | static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) | |
5723 | { | |
5724 | struct pci_dev *pdev = ioa_cfg->pdev; | |
5725 | ||
5726 | ENTER; | |
5727 | free_irq(pdev->irq, ioa_cfg); | |
5728 | iounmap(ioa_cfg->hdw_dma_regs); | |
5729 | pci_release_regions(pdev); | |
5730 | ipr_free_mem(ioa_cfg); | |
5731 | scsi_host_put(ioa_cfg->host); | |
5732 | pci_disable_device(pdev); | |
5733 | LEAVE; | |
5734 | } | |
5735 | ||
5736 | /** | |
5737 | * ipr_alloc_cmd_blks - Allocate command blocks for an adapter | |
5738 | * @ioa_cfg: ioa config struct | |
5739 | * | |
5740 | * Return value: | |
5741 | * 0 on success / -ENOMEM on allocation failure | |
5742 | **/ | |
5743 | static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) | |
5744 | { | |
5745 | struct ipr_cmnd *ipr_cmd; | |
5746 | struct ipr_ioarcb *ioarcb; | |
5747 | dma_addr_t dma_addr; | |
5748 | int i; | |
5749 | ||
5750 | ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev, | |
5751 | sizeof(struct ipr_cmnd), 8, 0); | |
5752 | ||
5753 | if (!ioa_cfg->ipr_cmd_pool) | |
5754 | return -ENOMEM; | |
5755 | ||
5756 | for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { | |
5757 | ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, SLAB_KERNEL, &dma_addr); | |
5758 | ||
5759 | if (!ipr_cmd) { | |
5760 | ipr_free_cmd_blks(ioa_cfg); | |
5761 | return -ENOMEM; | |
5762 | } | |
5763 | ||
5764 | memset(ipr_cmd, 0, sizeof(*ipr_cmd)); | |
5765 | ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; | |
5766 | ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; | |
5767 | ||
5768 | ioarcb = &ipr_cmd->ioarcb; | |
5769 | ioarcb->ioarcb_host_pci_addr = cpu_to_be32(dma_addr); | |
5770 | ioarcb->host_response_handle = cpu_to_be32(i << 2); | |
5771 | ioarcb->write_ioadl_addr = | |
5772 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl)); | |
5773 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; | |
5774 | ioarcb->ioasa_host_pci_addr = | |
5775 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa)); | |
5776 | ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); | |
5777 | ipr_cmd->cmd_index = i; | |
5778 | ipr_cmd->ioa_cfg = ioa_cfg; | |
5779 | ipr_cmd->sense_buffer_dma = dma_addr + | |
5780 | offsetof(struct ipr_cmnd, sense_buffer); | |
5781 | ||
5782 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
5783 | } | |
5784 | ||
5785 | return 0; | |
5786 | } | |
5787 | ||
5788 | /** | |
5789 | * ipr_alloc_mem - Allocate memory for an adapter | |
5790 | * @ioa_cfg: ioa config struct | |
5791 | * | |
5792 | * Return value: | |
5793 | * 0 on success / non-zero for error | |
5794 | **/ | |
5795 | static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) | |
5796 | { | |
5797 | struct pci_dev *pdev = ioa_cfg->pdev; | |
5798 | int i, rc = -ENOMEM; | |
5799 | ||
5800 | ENTER; | |
0bc42e35 | 5801 | ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) * |
1da177e4 LT |
5802 | IPR_MAX_PHYSICAL_DEVS, GFP_KERNEL); |
5803 | ||
5804 | if (!ioa_cfg->res_entries) | |
5805 | goto out; | |
5806 | ||
1da177e4 LT |
5807 | for (i = 0; i < IPR_MAX_PHYSICAL_DEVS; i++) |
5808 | list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); | |
5809 | ||
5810 | ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev, | |
5811 | sizeof(struct ipr_misc_cbs), | |
5812 | &ioa_cfg->vpd_cbs_dma); | |
5813 | ||
5814 | if (!ioa_cfg->vpd_cbs) | |
5815 | goto out_free_res_entries; | |
5816 | ||
5817 | if (ipr_alloc_cmd_blks(ioa_cfg)) | |
5818 | goto out_free_vpd_cbs; | |
5819 | ||
5820 | ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev, | |
5821 | sizeof(u32) * IPR_NUM_CMD_BLKS, | |
5822 | &ioa_cfg->host_rrq_dma); | |
5823 | ||
5824 | if (!ioa_cfg->host_rrq) | |
5825 | goto out_ipr_free_cmd_blocks; | |
5826 | ||
5827 | ioa_cfg->cfg_table = pci_alloc_consistent(ioa_cfg->pdev, | |
5828 | sizeof(struct ipr_config_table), | |
5829 | &ioa_cfg->cfg_table_dma); | |
5830 | ||
5831 | if (!ioa_cfg->cfg_table) | |
5832 | goto out_free_host_rrq; | |
5833 | ||
5834 | for (i = 0; i < IPR_NUM_HCAMS; i++) { | |
5835 | ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev, | |
5836 | sizeof(struct ipr_hostrcb), | |
5837 | &ioa_cfg->hostrcb_dma[i]); | |
5838 | ||
5839 | if (!ioa_cfg->hostrcb[i]) | |
5840 | goto out_free_hostrcb_dma; | |
5841 | ||
5842 | ioa_cfg->hostrcb[i]->hostrcb_dma = | |
5843 | ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); | |
5844 | list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q); | |
5845 | } | |
5846 | ||
0bc42e35 | 5847 | ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) * |
1da177e4 LT |
5848 | IPR_NUM_TRACE_ENTRIES, GFP_KERNEL); |
5849 | ||
5850 | if (!ioa_cfg->trace) | |
5851 | goto out_free_hostrcb_dma; | |
5852 | ||
1da177e4 LT |
5853 | rc = 0; |
5854 | out: | |
5855 | LEAVE; | |
5856 | return rc; | |
5857 | ||
5858 | out_free_hostrcb_dma: | |
5859 | while (i-- > 0) { | |
5860 | pci_free_consistent(pdev, sizeof(struct ipr_hostrcb), | |
5861 | ioa_cfg->hostrcb[i], | |
5862 | ioa_cfg->hostrcb_dma[i]); | |
5863 | } | |
5864 | pci_free_consistent(pdev, sizeof(struct ipr_config_table), | |
5865 | ioa_cfg->cfg_table, ioa_cfg->cfg_table_dma); | |
5866 | out_free_host_rrq: | |
5867 | pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, | |
5868 | ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); | |
5869 | out_ipr_free_cmd_blocks: | |
5870 | ipr_free_cmd_blks(ioa_cfg); | |
5871 | out_free_vpd_cbs: | |
5872 | pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs), | |
5873 | ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); | |
5874 | out_free_res_entries: | |
5875 | kfree(ioa_cfg->res_entries); | |
5876 | goto out; | |
5877 | } | |
5878 | ||
5879 | /** | |
5880 | * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values | |
5881 | * @ioa_cfg: ioa config struct | |
5882 | * | |
5883 | * Return value: | |
5884 | * none | |
5885 | **/ | |
5886 | static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) | |
5887 | { | |
5888 | int i; | |
5889 | ||
5890 | for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { | |
5891 | ioa_cfg->bus_attr[i].bus = i; | |
5892 | ioa_cfg->bus_attr[i].qas_enabled = 0; | |
5893 | ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; | |
5894 | if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) | |
5895 | ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; | |
5896 | else | |
5897 | ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; | |
5898 | } | |
5899 | } | |
5900 | ||
5901 | /** | |
5902 | * ipr_init_ioa_cfg - Initialize IOA config struct | |
5903 | * @ioa_cfg: ioa config struct | |
5904 | * @host: scsi host struct | |
5905 | * @pdev: PCI dev struct | |
5906 | * | |
5907 | * Return value: | |
5908 | * none | |
5909 | **/ | |
5910 | static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, | |
5911 | struct Scsi_Host *host, struct pci_dev *pdev) | |
5912 | { | |
5913 | const struct ipr_interrupt_offsets *p; | |
5914 | struct ipr_interrupts *t; | |
5915 | void __iomem *base; | |
5916 | ||
5917 | ioa_cfg->host = host; | |
5918 | ioa_cfg->pdev = pdev; | |
5919 | ioa_cfg->log_level = ipr_log_level; | |
5920 | sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER); | |
5921 | sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL); | |
5922 | sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL); | |
5923 | sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL); | |
5924 | sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); | |
5925 | sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); | |
5926 | sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); | |
5927 | sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); | |
5928 | ||
5929 | INIT_LIST_HEAD(&ioa_cfg->free_q); | |
5930 | INIT_LIST_HEAD(&ioa_cfg->pending_q); | |
5931 | INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q); | |
5932 | INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q); | |
5933 | INIT_LIST_HEAD(&ioa_cfg->free_res_q); | |
5934 | INIT_LIST_HEAD(&ioa_cfg->used_res_q); | |
5935 | INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread, ioa_cfg); | |
5936 | init_waitqueue_head(&ioa_cfg->reset_wait_q); | |
5937 | ioa_cfg->sdt_state = INACTIVE; | |
62275040 BK |
5938 | if (ipr_enable_cache) |
5939 | ioa_cfg->cache_state = CACHE_ENABLED; | |
5940 | else | |
5941 | ioa_cfg->cache_state = CACHE_DISABLED; | |
1da177e4 LT |
5942 | |
5943 | ipr_initialize_bus_attr(ioa_cfg); | |
5944 | ||
5945 | host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; | |
5946 | host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; | |
5947 | host->max_channel = IPR_MAX_BUS_TO_SCAN; | |
5948 | host->unique_id = host->host_no; | |
5949 | host->max_cmd_len = IPR_MAX_CDB_LEN; | |
5950 | pci_set_drvdata(pdev, ioa_cfg); | |
5951 | ||
5952 | p = &ioa_cfg->chip_cfg->regs; | |
5953 | t = &ioa_cfg->regs; | |
5954 | base = ioa_cfg->hdw_dma_regs; | |
5955 | ||
5956 | t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; | |
5957 | t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; | |
5958 | t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; | |
5959 | t->clr_interrupt_reg = base + p->clr_interrupt_reg; | |
5960 | t->sense_interrupt_reg = base + p->sense_interrupt_reg; | |
5961 | t->ioarrin_reg = base + p->ioarrin_reg; | |
5962 | t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; | |
5963 | t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; | |
5964 | t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; | |
5965 | } | |
5966 | ||
5967 | /** | |
5968 | * ipr_get_chip_cfg - Find adapter chip configuration | |
5969 | * @dev_id: PCI device id struct | |
5970 | * | |
5971 | * Return value: | |
5972 | * ptr to chip config on success / NULL on failure | |
5973 | **/ | |
5974 | static const struct ipr_chip_cfg_t * __devinit | |
5975 | ipr_get_chip_cfg(const struct pci_device_id *dev_id) | |
5976 | { | |
5977 | int i; | |
5978 | ||
5979 | if (dev_id->driver_data) | |
5980 | return (const struct ipr_chip_cfg_t *)dev_id->driver_data; | |
5981 | ||
5982 | for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) | |
5983 | if (ipr_chip[i].vendor == dev_id->vendor && | |
5984 | ipr_chip[i].device == dev_id->device) | |
5985 | return ipr_chip[i].cfg; | |
5986 | return NULL; | |
5987 | } | |
5988 | ||
5989 | /** | |
5990 | * ipr_probe_ioa - Allocates memory and does first stage of initialization | |
5991 | * @pdev: PCI device struct | |
5992 | * @dev_id: PCI device id struct | |
5993 | * | |
5994 | * Return value: | |
5995 | * 0 on success / non-zero on failure | |
5996 | **/ | |
5997 | static int __devinit ipr_probe_ioa(struct pci_dev *pdev, | |
5998 | const struct pci_device_id *dev_id) | |
5999 | { | |
6000 | struct ipr_ioa_cfg *ioa_cfg; | |
6001 | struct Scsi_Host *host; | |
6002 | unsigned long ipr_regs_pci; | |
6003 | void __iomem *ipr_regs; | |
6004 | u32 rc = PCIBIOS_SUCCESSFUL; | |
6005 | ||
6006 | ENTER; | |
6007 | ||
6008 | if ((rc = pci_enable_device(pdev))) { | |
6009 | dev_err(&pdev->dev, "Cannot enable adapter\n"); | |
6010 | goto out; | |
6011 | } | |
6012 | ||
6013 | dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq); | |
6014 | ||
6015 | host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); | |
6016 | ||
6017 | if (!host) { | |
6018 | dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n"); | |
6019 | rc = -ENOMEM; | |
6020 | goto out_disable; | |
6021 | } | |
6022 | ||
6023 | ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; | |
6024 | memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); | |
6025 | ||
6026 | ioa_cfg->chip_cfg = ipr_get_chip_cfg(dev_id); | |
6027 | ||
6028 | if (!ioa_cfg->chip_cfg) { | |
6029 | dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n", | |
6030 | dev_id->vendor, dev_id->device); | |
6031 | goto out_scsi_host_put; | |
6032 | } | |
6033 | ||
6034 | ipr_regs_pci = pci_resource_start(pdev, 0); | |
6035 | ||
6036 | rc = pci_request_regions(pdev, IPR_NAME); | |
6037 | if (rc < 0) { | |
6038 | dev_err(&pdev->dev, | |
6039 | "Couldn't register memory range of registers\n"); | |
6040 | goto out_scsi_host_put; | |
6041 | } | |
6042 | ||
6043 | ipr_regs = ioremap(ipr_regs_pci, pci_resource_len(pdev, 0)); | |
6044 | ||
6045 | if (!ipr_regs) { | |
6046 | dev_err(&pdev->dev, | |
6047 | "Couldn't map memory range of registers\n"); | |
6048 | rc = -ENOMEM; | |
6049 | goto out_release_regions; | |
6050 | } | |
6051 | ||
6052 | ioa_cfg->hdw_dma_regs = ipr_regs; | |
6053 | ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; | |
6054 | ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; | |
6055 | ||
6056 | ipr_init_ioa_cfg(ioa_cfg, host, pdev); | |
6057 | ||
6058 | pci_set_master(pdev); | |
6059 | ||
6060 | rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | |
6061 | if (rc < 0) { | |
6062 | dev_err(&pdev->dev, "Failed to set PCI DMA mask\n"); | |
6063 | goto cleanup_nomem; | |
6064 | } | |
6065 | ||
6066 | rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, | |
6067 | ioa_cfg->chip_cfg->cache_line_size); | |
6068 | ||
6069 | if (rc != PCIBIOS_SUCCESSFUL) { | |
6070 | dev_err(&pdev->dev, "Write of cache line size failed\n"); | |
6071 | rc = -EIO; | |
6072 | goto cleanup_nomem; | |
6073 | } | |
6074 | ||
6075 | /* Save away PCI config space for use following IOA reset */ | |
6076 | rc = pci_save_state(pdev); | |
6077 | ||
6078 | if (rc != PCIBIOS_SUCCESSFUL) { | |
6079 | dev_err(&pdev->dev, "Failed to save PCI config space\n"); | |
6080 | rc = -EIO; | |
6081 | goto cleanup_nomem; | |
6082 | } | |
6083 | ||
6084 | if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) | |
6085 | goto cleanup_nomem; | |
6086 | ||
6087 | if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) | |
6088 | goto cleanup_nomem; | |
6089 | ||
6090 | rc = ipr_alloc_mem(ioa_cfg); | |
6091 | if (rc < 0) { | |
6092 | dev_err(&pdev->dev, | |
6093 | "Couldn't allocate enough memory for device driver!\n"); | |
6094 | goto cleanup_nomem; | |
6095 | } | |
6096 | ||
6097 | ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); | |
6098 | rc = request_irq(pdev->irq, ipr_isr, SA_SHIRQ, IPR_NAME, ioa_cfg); | |
6099 | ||
6100 | if (rc) { | |
6101 | dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n", | |
6102 | pdev->irq, rc); | |
6103 | goto cleanup_nolog; | |
6104 | } | |
6105 | ||
6106 | spin_lock(&ipr_driver_lock); | |
6107 | list_add_tail(&ioa_cfg->queue, &ipr_ioa_head); | |
6108 | spin_unlock(&ipr_driver_lock); | |
6109 | ||
6110 | LEAVE; | |
6111 | out: | |
6112 | return rc; | |
6113 | ||
6114 | cleanup_nolog: | |
6115 | ipr_free_mem(ioa_cfg); | |
6116 | cleanup_nomem: | |
6117 | iounmap(ipr_regs); | |
6118 | out_release_regions: | |
6119 | pci_release_regions(pdev); | |
6120 | out_scsi_host_put: | |
6121 | scsi_host_put(host); | |
6122 | out_disable: | |
6123 | pci_disable_device(pdev); | |
6124 | goto out; | |
6125 | } | |
6126 | ||
6127 | /** | |
6128 | * ipr_scan_vsets - Scans for VSET devices | |
6129 | * @ioa_cfg: ioa config struct | |
6130 | * | |
6131 | * Description: Since the VSET resources do not follow SAM in that we can have | |
6132 | * sparse LUNs with no LUN 0, we have to scan for these ourselves. | |
6133 | * | |
6134 | * Return value: | |
6135 | * none | |
6136 | **/ | |
6137 | static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg) | |
6138 | { | |
6139 | int target, lun; | |
6140 | ||
6141 | for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++) | |
6142 | for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ ) | |
6143 | scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun); | |
6144 | } | |
6145 | ||
6146 | /** | |
6147 | * ipr_initiate_ioa_bringdown - Bring down an adapter | |
6148 | * @ioa_cfg: ioa config struct | |
6149 | * @shutdown_type: shutdown type | |
6150 | * | |
6151 | * Description: This function will initiate bringing down the adapter. | |
6152 | * This consists of issuing an IOA shutdown to the adapter | |
6153 | * to flush the cache, and running BIST. | |
6154 | * If the caller needs to wait on the completion of the reset, | |
6155 | * the caller must sleep on the reset_wait_q. | |
6156 | * | |
6157 | * Return value: | |
6158 | * none | |
6159 | **/ | |
6160 | static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, | |
6161 | enum ipr_shutdown_type shutdown_type) | |
6162 | { | |
6163 | ENTER; | |
6164 | if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) | |
6165 | ioa_cfg->sdt_state = ABORT_DUMP; | |
6166 | ioa_cfg->reset_retries = 0; | |
6167 | ioa_cfg->in_ioa_bringdown = 1; | |
6168 | ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); | |
6169 | LEAVE; | |
6170 | } | |
6171 | ||
6172 | /** | |
6173 | * __ipr_remove - Remove a single adapter | |
6174 | * @pdev: pci device struct | |
6175 | * | |
6176 | * Adapter hot plug remove entry point. | |
6177 | * | |
6178 | * Return value: | |
6179 | * none | |
6180 | **/ | |
6181 | static void __ipr_remove(struct pci_dev *pdev) | |
6182 | { | |
6183 | unsigned long host_lock_flags = 0; | |
6184 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
6185 | ENTER; | |
6186 | ||
6187 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); | |
6188 | ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
6189 | ||
6190 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
6191 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
5cbf5eae | 6192 | flush_scheduled_work(); |
1da177e4 LT |
6193 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); |
6194 | ||
6195 | spin_lock(&ipr_driver_lock); | |
6196 | list_del(&ioa_cfg->queue); | |
6197 | spin_unlock(&ipr_driver_lock); | |
6198 | ||
6199 | if (ioa_cfg->sdt_state == ABORT_DUMP) | |
6200 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; | |
6201 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
6202 | ||
6203 | ipr_free_all_resources(ioa_cfg); | |
6204 | ||
6205 | LEAVE; | |
6206 | } | |
6207 | ||
6208 | /** | |
6209 | * ipr_remove - IOA hot plug remove entry point | |
6210 | * @pdev: pci device struct | |
6211 | * | |
6212 | * Adapter hot plug remove entry point. | |
6213 | * | |
6214 | * Return value: | |
6215 | * none | |
6216 | **/ | |
6217 | static void ipr_remove(struct pci_dev *pdev) | |
6218 | { | |
6219 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
6220 | ||
6221 | ENTER; | |
6222 | ||
1da177e4 LT |
6223 | ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj, |
6224 | &ipr_trace_attr); | |
6225 | ipr_remove_dump_file(&ioa_cfg->host->shost_classdev.kobj, | |
6226 | &ipr_dump_attr); | |
6227 | scsi_remove_host(ioa_cfg->host); | |
6228 | ||
6229 | __ipr_remove(pdev); | |
6230 | ||
6231 | LEAVE; | |
6232 | } | |
6233 | ||
6234 | /** | |
6235 | * ipr_probe - Adapter hot plug add entry point | |
6236 | * | |
6237 | * Return value: | |
6238 | * 0 on success / non-zero on failure | |
6239 | **/ | |
6240 | static int __devinit ipr_probe(struct pci_dev *pdev, | |
6241 | const struct pci_device_id *dev_id) | |
6242 | { | |
6243 | struct ipr_ioa_cfg *ioa_cfg; | |
6244 | int rc; | |
6245 | ||
6246 | rc = ipr_probe_ioa(pdev, dev_id); | |
6247 | ||
6248 | if (rc) | |
6249 | return rc; | |
6250 | ||
6251 | ioa_cfg = pci_get_drvdata(pdev); | |
6252 | rc = ipr_probe_ioa_part2(ioa_cfg); | |
6253 | ||
6254 | if (rc) { | |
6255 | __ipr_remove(pdev); | |
6256 | return rc; | |
6257 | } | |
6258 | ||
6259 | rc = scsi_add_host(ioa_cfg->host, &pdev->dev); | |
6260 | ||
6261 | if (rc) { | |
6262 | __ipr_remove(pdev); | |
6263 | return rc; | |
6264 | } | |
6265 | ||
6266 | rc = ipr_create_trace_file(&ioa_cfg->host->shost_classdev.kobj, | |
6267 | &ipr_trace_attr); | |
6268 | ||
6269 | if (rc) { | |
6270 | scsi_remove_host(ioa_cfg->host); | |
6271 | __ipr_remove(pdev); | |
6272 | return rc; | |
6273 | } | |
6274 | ||
6275 | rc = ipr_create_dump_file(&ioa_cfg->host->shost_classdev.kobj, | |
6276 | &ipr_dump_attr); | |
6277 | ||
6278 | if (rc) { | |
6279 | ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj, | |
6280 | &ipr_trace_attr); | |
6281 | scsi_remove_host(ioa_cfg->host); | |
6282 | __ipr_remove(pdev); | |
6283 | return rc; | |
6284 | } | |
6285 | ||
6286 | scsi_scan_host(ioa_cfg->host); | |
6287 | ipr_scan_vsets(ioa_cfg); | |
6288 | scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN); | |
6289 | ioa_cfg->allow_ml_add_del = 1; | |
11cd8f12 | 6290 | ioa_cfg->host->max_channel = IPR_VSET_BUS; |
1da177e4 LT |
6291 | schedule_work(&ioa_cfg->work_q); |
6292 | return 0; | |
6293 | } | |
6294 | ||
6295 | /** | |
6296 | * ipr_shutdown - Shutdown handler. | |
d18c3db5 | 6297 | * @pdev: pci device struct |
1da177e4 LT |
6298 | * |
6299 | * This function is invoked upon system shutdown/reboot. It will issue | |
6300 | * an adapter shutdown to the adapter to flush the write cache. | |
6301 | * | |
6302 | * Return value: | |
6303 | * none | |
6304 | **/ | |
d18c3db5 | 6305 | static void ipr_shutdown(struct pci_dev *pdev) |
1da177e4 | 6306 | { |
d18c3db5 | 6307 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
1da177e4 LT |
6308 | unsigned long lock_flags = 0; |
6309 | ||
6310 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
6311 | ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
6312 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
6313 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
6314 | } | |
6315 | ||
6316 | static struct pci_device_id ipr_pci_table[] __devinitdata = { | |
6317 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, | |
6318 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, | |
6319 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
6320 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, | |
6321 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, | |
6322 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
6323 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, | |
6324 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, | |
6325 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
6326 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, | |
6327 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, | |
6328 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
6329 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, | |
6330 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, | |
6331 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
6332 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, | |
6333 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, | |
6334 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
6335 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, | |
6336 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, | |
6337 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] }, | |
6338 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, | |
6339 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, | |
6340 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] }, | |
6341 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, | |
6342 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, | |
6343 | 0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] }, | |
6344 | { } | |
6345 | }; | |
6346 | MODULE_DEVICE_TABLE(pci, ipr_pci_table); | |
6347 | ||
6348 | static struct pci_driver ipr_driver = { | |
6349 | .name = IPR_NAME, | |
6350 | .id_table = ipr_pci_table, | |
6351 | .probe = ipr_probe, | |
6352 | .remove = ipr_remove, | |
d18c3db5 | 6353 | .shutdown = ipr_shutdown, |
1da177e4 LT |
6354 | }; |
6355 | ||
6356 | /** | |
6357 | * ipr_init - Module entry point | |
6358 | * | |
6359 | * Return value: | |
6360 | * 0 on success / negative value on failure | |
6361 | **/ | |
6362 | static int __init ipr_init(void) | |
6363 | { | |
6364 | ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", | |
6365 | IPR_DRIVER_VERSION, IPR_DRIVER_DATE); | |
6366 | ||
6367 | return pci_module_init(&ipr_driver); | |
6368 | } | |
6369 | ||
6370 | /** | |
6371 | * ipr_exit - Module unload | |
6372 | * | |
6373 | * Module unload entry point. | |
6374 | * | |
6375 | * Return value: | |
6376 | * none | |
6377 | **/ | |
6378 | static void __exit ipr_exit(void) | |
6379 | { | |
6380 | pci_unregister_driver(&ipr_driver); | |
6381 | } | |
6382 | ||
6383 | module_init(ipr_init); | |
6384 | module_exit(ipr_exit); |