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1 | /* |
2 | * driver for Microsemi PQI-based storage controllers | |
b805dbfe | 3 | * Copyright (c) 2016-2017 Microsemi Corporation |
6c223761 KB |
4 | * Copyright (c) 2016 PMC-Sierra, Inc. |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; version 2 of the License. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or | |
13 | * NON INFRINGEMENT. See the GNU General Public License for more details. | |
14 | * | |
15 | * Questions/Comments/Bugfixes to esc.storagedev@microsemi.com | |
16 | * | |
17 | */ | |
18 | ||
19 | #include <linux/module.h> | |
20 | #include <linux/kernel.h> | |
21 | #include <linux/pci.h> | |
22 | #include <linux/delay.h> | |
23 | #include <linux/interrupt.h> | |
24 | #include <linux/sched.h> | |
25 | #include <linux/rtc.h> | |
26 | #include <linux/bcd.h> | |
3c50976f | 27 | #include <linux/reboot.h> |
6c223761 | 28 | #include <linux/cciss_ioctl.h> |
52198226 | 29 | #include <linux/blk-mq-pci.h> |
6c223761 KB |
30 | #include <scsi/scsi_host.h> |
31 | #include <scsi/scsi_cmnd.h> | |
32 | #include <scsi/scsi_device.h> | |
33 | #include <scsi/scsi_eh.h> | |
34 | #include <scsi/scsi_transport_sas.h> | |
35 | #include <asm/unaligned.h> | |
36 | #include "smartpqi.h" | |
37 | #include "smartpqi_sis.h" | |
38 | ||
39 | #if !defined(BUILD_TIMESTAMP) | |
40 | #define BUILD_TIMESTAMP | |
41 | #endif | |
42 | ||
1923f851 | 43 | #define DRIVER_VERSION "1.2.4-070" |
2d154f5f | 44 | #define DRIVER_MAJOR 1 |
f7cb8ac6 | 45 | #define DRIVER_MINOR 2 |
61c187e4 | 46 | #define DRIVER_RELEASE 4 |
1923f851 | 47 | #define DRIVER_REVISION 70 |
6c223761 | 48 | |
2d154f5f KB |
49 | #define DRIVER_NAME "Microsemi PQI Driver (v" \ |
50 | DRIVER_VERSION BUILD_TIMESTAMP ")" | |
6c223761 KB |
51 | #define DRIVER_NAME_SHORT "smartpqi" |
52 | ||
e1d213bd KB |
53 | #define PQI_EXTRA_SGL_MEMORY (12 * sizeof(struct pqi_sg_descriptor)) |
54 | ||
6c223761 KB |
55 | MODULE_AUTHOR("Microsemi"); |
56 | MODULE_DESCRIPTION("Driver for Microsemi Smart Family Controller version " | |
57 | DRIVER_VERSION); | |
58 | MODULE_SUPPORTED_DEVICE("Microsemi Smart Family Controllers"); | |
59 | MODULE_VERSION(DRIVER_VERSION); | |
60 | MODULE_LICENSE("GPL"); | |
61 | ||
6c223761 | 62 | static void pqi_take_ctrl_offline(struct pqi_ctrl_info *ctrl_info); |
5f310425 | 63 | static void pqi_ctrl_offline_worker(struct work_struct *work); |
376fb880 | 64 | static void pqi_retry_raid_bypass_requests(struct pqi_ctrl_info *ctrl_info); |
6c223761 KB |
65 | static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info); |
66 | static void pqi_scan_start(struct Scsi_Host *shost); | |
67 | static void pqi_start_io(struct pqi_ctrl_info *ctrl_info, | |
68 | struct pqi_queue_group *queue_group, enum pqi_io_path path, | |
69 | struct pqi_io_request *io_request); | |
70 | static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info, | |
71 | struct pqi_iu_header *request, unsigned int flags, | |
72 | struct pqi_raid_error_info *error_info, unsigned long timeout_msecs); | |
73 | static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info, | |
74 | struct scsi_cmnd *scmd, u32 aio_handle, u8 *cdb, | |
75 | unsigned int cdb_length, struct pqi_queue_group *queue_group, | |
376fb880 | 76 | struct pqi_encryption_info *encryption_info, bool raid_bypass); |
4fd22c13 MR |
77 | static void pqi_ofa_ctrl_quiesce(struct pqi_ctrl_info *ctrl_info); |
78 | static void pqi_ofa_ctrl_unquiesce(struct pqi_ctrl_info *ctrl_info); | |
79 | static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info); | |
80 | static void pqi_ofa_setup_host_buffer(struct pqi_ctrl_info *ctrl_info, | |
81 | u32 bytes_requested); | |
82 | static void pqi_ofa_free_host_buffer(struct pqi_ctrl_info *ctrl_info); | |
83 | static int pqi_ofa_host_memory_update(struct pqi_ctrl_info *ctrl_info); | |
1e46731e MR |
84 | static int pqi_device_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info, |
85 | struct pqi_scsi_dev *device, unsigned long timeout_secs); | |
6c223761 KB |
86 | |
87 | /* for flags argument to pqi_submit_raid_request_synchronous() */ | |
88 | #define PQI_SYNC_FLAGS_INTERRUPTABLE 0x1 | |
89 | ||
90 | static struct scsi_transport_template *pqi_sas_transport_template; | |
91 | ||
92 | static atomic_t pqi_controller_count = ATOMIC_INIT(0); | |
93 | ||
3c50976f KB |
94 | enum pqi_lockup_action { |
95 | NONE, | |
96 | REBOOT, | |
97 | PANIC | |
98 | }; | |
99 | ||
100 | static enum pqi_lockup_action pqi_lockup_action = NONE; | |
101 | ||
102 | static struct { | |
103 | enum pqi_lockup_action action; | |
104 | char *name; | |
105 | } pqi_lockup_actions[] = { | |
106 | { | |
107 | .action = NONE, | |
108 | .name = "none", | |
109 | }, | |
110 | { | |
111 | .action = REBOOT, | |
112 | .name = "reboot", | |
113 | }, | |
114 | { | |
115 | .action = PANIC, | |
116 | .name = "panic", | |
117 | }, | |
118 | }; | |
119 | ||
6a50d6ad KB |
120 | static unsigned int pqi_supported_event_types[] = { |
121 | PQI_EVENT_TYPE_HOTPLUG, | |
122 | PQI_EVENT_TYPE_HARDWARE, | |
123 | PQI_EVENT_TYPE_PHYSICAL_DEVICE, | |
124 | PQI_EVENT_TYPE_LOGICAL_DEVICE, | |
4fd22c13 | 125 | PQI_EVENT_TYPE_OFA, |
6a50d6ad KB |
126 | PQI_EVENT_TYPE_AIO_STATE_CHANGE, |
127 | PQI_EVENT_TYPE_AIO_CONFIG_CHANGE, | |
128 | }; | |
129 | ||
6c223761 KB |
130 | static int pqi_disable_device_id_wildcards; |
131 | module_param_named(disable_device_id_wildcards, | |
cbe0c7b1 | 132 | pqi_disable_device_id_wildcards, int, 0644); |
6c223761 KB |
133 | MODULE_PARM_DESC(disable_device_id_wildcards, |
134 | "Disable device ID wildcards."); | |
135 | ||
5a259e32 KB |
136 | static int pqi_disable_heartbeat; |
137 | module_param_named(disable_heartbeat, | |
138 | pqi_disable_heartbeat, int, 0644); | |
139 | MODULE_PARM_DESC(disable_heartbeat, | |
140 | "Disable heartbeat."); | |
141 | ||
142 | static int pqi_disable_ctrl_shutdown; | |
143 | module_param_named(disable_ctrl_shutdown, | |
144 | pqi_disable_ctrl_shutdown, int, 0644); | |
145 | MODULE_PARM_DESC(disable_ctrl_shutdown, | |
146 | "Disable controller shutdown when controller locked up."); | |
147 | ||
3c50976f KB |
148 | static char *pqi_lockup_action_param; |
149 | module_param_named(lockup_action, | |
150 | pqi_lockup_action_param, charp, 0644); | |
151 | MODULE_PARM_DESC(lockup_action, "Action to take when controller locked up.\n" | |
152 | "\t\tSupported: none, reboot, panic\n" | |
153 | "\t\tDefault: none"); | |
154 | ||
6c223761 KB |
155 | static char *raid_levels[] = { |
156 | "RAID-0", | |
157 | "RAID-4", | |
158 | "RAID-1(1+0)", | |
159 | "RAID-5", | |
160 | "RAID-5+1", | |
161 | "RAID-ADG", | |
162 | "RAID-1(ADM)", | |
163 | }; | |
164 | ||
165 | static char *pqi_raid_level_to_string(u8 raid_level) | |
166 | { | |
167 | if (raid_level < ARRAY_SIZE(raid_levels)) | |
168 | return raid_levels[raid_level]; | |
169 | ||
a9f93392 | 170 | return "RAID UNKNOWN"; |
6c223761 KB |
171 | } |
172 | ||
173 | #define SA_RAID_0 0 | |
174 | #define SA_RAID_4 1 | |
175 | #define SA_RAID_1 2 /* also used for RAID 10 */ | |
176 | #define SA_RAID_5 3 /* also used for RAID 50 */ | |
177 | #define SA_RAID_51 4 | |
178 | #define SA_RAID_6 5 /* also used for RAID 60 */ | |
179 | #define SA_RAID_ADM 6 /* also used for RAID 1+0 ADM */ | |
180 | #define SA_RAID_MAX SA_RAID_ADM | |
181 | #define SA_RAID_UNKNOWN 0xff | |
182 | ||
183 | static inline void pqi_scsi_done(struct scsi_cmnd *scmd) | |
184 | { | |
7561a7e4 | 185 | pqi_prep_for_scsi_done(scmd); |
6c223761 KB |
186 | scmd->scsi_done(scmd); |
187 | } | |
188 | ||
b6e2ef67 | 189 | static inline void pqi_disable_write_same(struct scsi_device *sdev) |
6c223761 | 190 | { |
b6e2ef67 | 191 | sdev->no_write_same = 1; |
6c223761 KB |
192 | } |
193 | ||
6c223761 | 194 | static inline bool pqi_scsi3addr_equal(u8 *scsi3addr1, u8 *scsi3addr2) |
6c223761 | 195 | { |
6c223761 | 196 | return memcmp(scsi3addr1, scsi3addr2, 8) == 0; |
6c223761 KB |
197 | } |
198 | ||
199 | static inline bool pqi_is_logical_device(struct pqi_scsi_dev *device) | |
200 | { | |
201 | return !device->is_physical_device; | |
202 | } | |
203 | ||
bd10cf0b KB |
204 | static inline bool pqi_is_external_raid_addr(u8 *scsi3addr) |
205 | { | |
206 | return scsi3addr[2] != 0; | |
207 | } | |
208 | ||
6c223761 KB |
209 | static inline void pqi_check_ctrl_health(struct pqi_ctrl_info *ctrl_info) |
210 | { | |
211 | if (ctrl_info->controller_online) | |
212 | if (!sis_is_firmware_running(ctrl_info)) | |
213 | pqi_take_ctrl_offline(ctrl_info); | |
214 | } | |
215 | ||
216 | static inline bool pqi_is_hba_lunid(u8 *scsi3addr) | |
217 | { | |
218 | return pqi_scsi3addr_equal(scsi3addr, RAID_CTLR_LUNID); | |
219 | } | |
220 | ||
ff6abb73 KB |
221 | static inline enum pqi_ctrl_mode pqi_get_ctrl_mode( |
222 | struct pqi_ctrl_info *ctrl_info) | |
223 | { | |
224 | return sis_read_driver_scratch(ctrl_info); | |
225 | } | |
226 | ||
227 | static inline void pqi_save_ctrl_mode(struct pqi_ctrl_info *ctrl_info, | |
228 | enum pqi_ctrl_mode mode) | |
229 | { | |
230 | sis_write_driver_scratch(ctrl_info, mode); | |
231 | } | |
232 | ||
7561a7e4 KB |
233 | static inline void pqi_ctrl_block_requests(struct pqi_ctrl_info *ctrl_info) |
234 | { | |
235 | ctrl_info->block_requests = true; | |
236 | scsi_block_requests(ctrl_info->scsi_host); | |
237 | } | |
238 | ||
239 | static inline void pqi_ctrl_unblock_requests(struct pqi_ctrl_info *ctrl_info) | |
240 | { | |
241 | ctrl_info->block_requests = false; | |
242 | wake_up_all(&ctrl_info->block_requests_wait); | |
376fb880 | 243 | pqi_retry_raid_bypass_requests(ctrl_info); |
7561a7e4 KB |
244 | scsi_unblock_requests(ctrl_info->scsi_host); |
245 | } | |
246 | ||
7561a7e4 KB |
247 | static unsigned long pqi_wait_if_ctrl_blocked(struct pqi_ctrl_info *ctrl_info, |
248 | unsigned long timeout_msecs) | |
249 | { | |
250 | unsigned long remaining_msecs; | |
251 | ||
252 | if (!pqi_ctrl_blocked(ctrl_info)) | |
253 | return timeout_msecs; | |
254 | ||
255 | atomic_inc(&ctrl_info->num_blocked_threads); | |
256 | ||
257 | if (timeout_msecs == NO_TIMEOUT) { | |
258 | wait_event(ctrl_info->block_requests_wait, | |
259 | !pqi_ctrl_blocked(ctrl_info)); | |
260 | remaining_msecs = timeout_msecs; | |
261 | } else { | |
262 | unsigned long remaining_jiffies; | |
263 | ||
264 | remaining_jiffies = | |
265 | wait_event_timeout(ctrl_info->block_requests_wait, | |
266 | !pqi_ctrl_blocked(ctrl_info), | |
267 | msecs_to_jiffies(timeout_msecs)); | |
268 | remaining_msecs = jiffies_to_msecs(remaining_jiffies); | |
269 | } | |
270 | ||
271 | atomic_dec(&ctrl_info->num_blocked_threads); | |
272 | ||
273 | return remaining_msecs; | |
274 | } | |
275 | ||
7561a7e4 KB |
276 | static inline void pqi_ctrl_wait_until_quiesced(struct pqi_ctrl_info *ctrl_info) |
277 | { | |
278 | while (atomic_read(&ctrl_info->num_busy_threads) > | |
279 | atomic_read(&ctrl_info->num_blocked_threads)) | |
280 | usleep_range(1000, 2000); | |
281 | } | |
282 | ||
03b288cf KB |
283 | static inline bool pqi_device_offline(struct pqi_scsi_dev *device) |
284 | { | |
285 | return device->device_offline; | |
286 | } | |
287 | ||
7561a7e4 KB |
288 | static inline void pqi_device_reset_start(struct pqi_scsi_dev *device) |
289 | { | |
290 | device->in_reset = true; | |
291 | } | |
292 | ||
293 | static inline void pqi_device_reset_done(struct pqi_scsi_dev *device) | |
294 | { | |
295 | device->in_reset = false; | |
296 | } | |
297 | ||
298 | static inline bool pqi_device_in_reset(struct pqi_scsi_dev *device) | |
299 | { | |
300 | return device->in_reset; | |
301 | } | |
6c223761 | 302 | |
4fd22c13 MR |
303 | static inline void pqi_ctrl_ofa_start(struct pqi_ctrl_info *ctrl_info) |
304 | { | |
305 | ctrl_info->in_ofa = true; | |
306 | } | |
307 | ||
308 | static inline void pqi_ctrl_ofa_done(struct pqi_ctrl_info *ctrl_info) | |
309 | { | |
310 | ctrl_info->in_ofa = false; | |
311 | } | |
312 | ||
313 | static inline bool pqi_ctrl_in_ofa(struct pqi_ctrl_info *ctrl_info) | |
314 | { | |
315 | return ctrl_info->in_ofa; | |
316 | } | |
317 | ||
1e46731e MR |
318 | static inline void pqi_device_remove_start(struct pqi_scsi_dev *device) |
319 | { | |
320 | device->in_remove = true; | |
321 | } | |
322 | ||
323 | static inline bool pqi_device_in_remove(struct pqi_ctrl_info *ctrl_info, | |
324 | struct pqi_scsi_dev *device) | |
325 | { | |
326 | return device->in_remove & !ctrl_info->in_shutdown; | |
327 | } | |
328 | ||
5f310425 KB |
329 | static inline void pqi_schedule_rescan_worker_with_delay( |
330 | struct pqi_ctrl_info *ctrl_info, unsigned long delay) | |
331 | { | |
332 | if (pqi_ctrl_offline(ctrl_info)) | |
333 | return; | |
4fd22c13 MR |
334 | if (pqi_ctrl_in_ofa(ctrl_info)) |
335 | return; | |
5f310425 KB |
336 | |
337 | schedule_delayed_work(&ctrl_info->rescan_work, delay); | |
338 | } | |
339 | ||
6c223761 KB |
340 | static inline void pqi_schedule_rescan_worker(struct pqi_ctrl_info *ctrl_info) |
341 | { | |
5f310425 KB |
342 | pqi_schedule_rescan_worker_with_delay(ctrl_info, 0); |
343 | } | |
344 | ||
4fd22c13 | 345 | #define PQI_RESCAN_WORK_DELAY (10 * PQI_HZ) |
5f310425 KB |
346 | |
347 | static inline void pqi_schedule_rescan_worker_delayed( | |
348 | struct pqi_ctrl_info *ctrl_info) | |
349 | { | |
350 | pqi_schedule_rescan_worker_with_delay(ctrl_info, PQI_RESCAN_WORK_DELAY); | |
6c223761 KB |
351 | } |
352 | ||
061ef06a KB |
353 | static inline void pqi_cancel_rescan_worker(struct pqi_ctrl_info *ctrl_info) |
354 | { | |
355 | cancel_delayed_work_sync(&ctrl_info->rescan_work); | |
356 | } | |
357 | ||
98f87667 KB |
358 | static inline u32 pqi_read_heartbeat_counter(struct pqi_ctrl_info *ctrl_info) |
359 | { | |
360 | if (!ctrl_info->heartbeat_counter) | |
361 | return 0; | |
362 | ||
363 | return readl(ctrl_info->heartbeat_counter); | |
364 | } | |
365 | ||
4fd22c13 MR |
366 | static inline u8 pqi_read_soft_reset_status(struct pqi_ctrl_info *ctrl_info) |
367 | { | |
368 | if (!ctrl_info->soft_reset_status) | |
369 | return 0; | |
370 | ||
371 | return readb(ctrl_info->soft_reset_status); | |
372 | } | |
373 | ||
374 | static inline void pqi_clear_soft_reset_status(struct pqi_ctrl_info *ctrl_info, | |
375 | u8 clear) | |
376 | { | |
377 | u8 status; | |
378 | ||
379 | if (!ctrl_info->soft_reset_status) | |
380 | return; | |
381 | ||
382 | status = pqi_read_soft_reset_status(ctrl_info); | |
383 | status &= ~clear; | |
384 | writeb(status, ctrl_info->soft_reset_status); | |
385 | } | |
386 | ||
6c223761 KB |
387 | static int pqi_map_single(struct pci_dev *pci_dev, |
388 | struct pqi_sg_descriptor *sg_descriptor, void *buffer, | |
6917a9cc | 389 | size_t buffer_length, enum dma_data_direction data_direction) |
6c223761 KB |
390 | { |
391 | dma_addr_t bus_address; | |
392 | ||
6917a9cc | 393 | if (!buffer || buffer_length == 0 || data_direction == DMA_NONE) |
6c223761 KB |
394 | return 0; |
395 | ||
6917a9cc | 396 | bus_address = dma_map_single(&pci_dev->dev, buffer, buffer_length, |
6c223761 | 397 | data_direction); |
6917a9cc | 398 | if (dma_mapping_error(&pci_dev->dev, bus_address)) |
6c223761 KB |
399 | return -ENOMEM; |
400 | ||
401 | put_unaligned_le64((u64)bus_address, &sg_descriptor->address); | |
402 | put_unaligned_le32(buffer_length, &sg_descriptor->length); | |
403 | put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags); | |
404 | ||
405 | return 0; | |
406 | } | |
407 | ||
408 | static void pqi_pci_unmap(struct pci_dev *pci_dev, | |
409 | struct pqi_sg_descriptor *descriptors, int num_descriptors, | |
6917a9cc | 410 | enum dma_data_direction data_direction) |
6c223761 KB |
411 | { |
412 | int i; | |
413 | ||
6917a9cc | 414 | if (data_direction == DMA_NONE) |
6c223761 KB |
415 | return; |
416 | ||
417 | for (i = 0; i < num_descriptors; i++) | |
6917a9cc | 418 | dma_unmap_single(&pci_dev->dev, |
6c223761 KB |
419 | (dma_addr_t)get_unaligned_le64(&descriptors[i].address), |
420 | get_unaligned_le32(&descriptors[i].length), | |
421 | data_direction); | |
422 | } | |
423 | ||
424 | static int pqi_build_raid_path_request(struct pqi_ctrl_info *ctrl_info, | |
425 | struct pqi_raid_path_request *request, u8 cmd, | |
426 | u8 *scsi3addr, void *buffer, size_t buffer_length, | |
6917a9cc | 427 | u16 vpd_page, enum dma_data_direction *dir) |
6c223761 KB |
428 | { |
429 | u8 *cdb; | |
171c2865 | 430 | size_t cdb_length = buffer_length; |
6c223761 KB |
431 | |
432 | memset(request, 0, sizeof(*request)); | |
433 | ||
434 | request->header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO; | |
435 | put_unaligned_le16(offsetof(struct pqi_raid_path_request, | |
436 | sg_descriptors[1]) - PQI_REQUEST_HEADER_LENGTH, | |
437 | &request->header.iu_length); | |
438 | put_unaligned_le32(buffer_length, &request->buffer_length); | |
439 | memcpy(request->lun_number, scsi3addr, sizeof(request->lun_number)); | |
440 | request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; | |
441 | request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0; | |
442 | ||
443 | cdb = request->cdb; | |
444 | ||
445 | switch (cmd) { | |
446 | case INQUIRY: | |
447 | request->data_direction = SOP_READ_FLAG; | |
448 | cdb[0] = INQUIRY; | |
449 | if (vpd_page & VPD_PAGE) { | |
450 | cdb[1] = 0x1; | |
451 | cdb[2] = (u8)vpd_page; | |
452 | } | |
171c2865 | 453 | cdb[4] = (u8)cdb_length; |
6c223761 KB |
454 | break; |
455 | case CISS_REPORT_LOG: | |
456 | case CISS_REPORT_PHYS: | |
457 | request->data_direction = SOP_READ_FLAG; | |
458 | cdb[0] = cmd; | |
459 | if (cmd == CISS_REPORT_PHYS) | |
460 | cdb[1] = CISS_REPORT_PHYS_EXTENDED; | |
461 | else | |
462 | cdb[1] = CISS_REPORT_LOG_EXTENDED; | |
171c2865 | 463 | put_unaligned_be32(cdb_length, &cdb[6]); |
6c223761 KB |
464 | break; |
465 | case CISS_GET_RAID_MAP: | |
466 | request->data_direction = SOP_READ_FLAG; | |
467 | cdb[0] = CISS_READ; | |
468 | cdb[1] = CISS_GET_RAID_MAP; | |
171c2865 | 469 | put_unaligned_be32(cdb_length, &cdb[6]); |
6c223761 | 470 | break; |
58322fe0 | 471 | case SA_FLUSH_CACHE: |
6c223761 KB |
472 | request->data_direction = SOP_WRITE_FLAG; |
473 | cdb[0] = BMIC_WRITE; | |
58322fe0 | 474 | cdb[6] = BMIC_FLUSH_CACHE; |
171c2865 | 475 | put_unaligned_be16(cdb_length, &cdb[7]); |
6c223761 | 476 | break; |
171c2865 DC |
477 | case BMIC_SENSE_DIAG_OPTIONS: |
478 | cdb_length = 0; | |
e52c9e07 | 479 | /* fall through */ |
6c223761 KB |
480 | case BMIC_IDENTIFY_CONTROLLER: |
481 | case BMIC_IDENTIFY_PHYSICAL_DEVICE: | |
482 | request->data_direction = SOP_READ_FLAG; | |
483 | cdb[0] = BMIC_READ; | |
484 | cdb[6] = cmd; | |
171c2865 | 485 | put_unaligned_be16(cdb_length, &cdb[7]); |
6c223761 | 486 | break; |
171c2865 DC |
487 | case BMIC_SET_DIAG_OPTIONS: |
488 | cdb_length = 0; | |
e52c9e07 | 489 | /* fall through */ |
6c223761 KB |
490 | case BMIC_WRITE_HOST_WELLNESS: |
491 | request->data_direction = SOP_WRITE_FLAG; | |
492 | cdb[0] = BMIC_WRITE; | |
493 | cdb[6] = cmd; | |
171c2865 | 494 | put_unaligned_be16(cdb_length, &cdb[7]); |
6c223761 | 495 | break; |
3d46a59a DB |
496 | case BMIC_CSMI_PASSTHRU: |
497 | request->data_direction = SOP_BIDIRECTIONAL; | |
498 | cdb[0] = BMIC_WRITE; | |
499 | cdb[5] = CSMI_CC_SAS_SMP_PASSTHRU; | |
500 | cdb[6] = cmd; | |
501 | put_unaligned_be16(cdb_length, &cdb[7]); | |
6c223761 KB |
502 | break; |
503 | default: | |
504 | dev_err(&ctrl_info->pci_dev->dev, "unknown command 0x%c\n", | |
505 | cmd); | |
6c223761 KB |
506 | break; |
507 | } | |
508 | ||
509 | switch (request->data_direction) { | |
510 | case SOP_READ_FLAG: | |
6917a9cc | 511 | *dir = DMA_FROM_DEVICE; |
6c223761 KB |
512 | break; |
513 | case SOP_WRITE_FLAG: | |
6917a9cc | 514 | *dir = DMA_TO_DEVICE; |
6c223761 KB |
515 | break; |
516 | case SOP_NO_DIRECTION_FLAG: | |
6917a9cc | 517 | *dir = DMA_NONE; |
6c223761 KB |
518 | break; |
519 | default: | |
6917a9cc | 520 | *dir = DMA_BIDIRECTIONAL; |
6c223761 KB |
521 | break; |
522 | } | |
523 | ||
6c223761 | 524 | return pqi_map_single(ctrl_info->pci_dev, &request->sg_descriptors[0], |
6917a9cc | 525 | buffer, buffer_length, *dir); |
6c223761 KB |
526 | } |
527 | ||
376fb880 KB |
528 | static inline void pqi_reinit_io_request(struct pqi_io_request *io_request) |
529 | { | |
530 | io_request->scmd = NULL; | |
531 | io_request->status = 0; | |
532 | io_request->error_info = NULL; | |
533 | io_request->raid_bypass = false; | |
534 | } | |
535 | ||
6c223761 KB |
536 | static struct pqi_io_request *pqi_alloc_io_request( |
537 | struct pqi_ctrl_info *ctrl_info) | |
538 | { | |
539 | struct pqi_io_request *io_request; | |
540 | u16 i = ctrl_info->next_io_request_slot; /* benignly racy */ | |
541 | ||
542 | while (1) { | |
543 | io_request = &ctrl_info->io_request_pool[i]; | |
544 | if (atomic_inc_return(&io_request->refcount) == 1) | |
545 | break; | |
546 | atomic_dec(&io_request->refcount); | |
547 | i = (i + 1) % ctrl_info->max_io_slots; | |
548 | } | |
549 | ||
550 | /* benignly racy */ | |
551 | ctrl_info->next_io_request_slot = (i + 1) % ctrl_info->max_io_slots; | |
552 | ||
376fb880 | 553 | pqi_reinit_io_request(io_request); |
6c223761 KB |
554 | |
555 | return io_request; | |
556 | } | |
557 | ||
558 | static void pqi_free_io_request(struct pqi_io_request *io_request) | |
559 | { | |
560 | atomic_dec(&io_request->refcount); | |
561 | } | |
562 | ||
02133b68 DC |
563 | static int pqi_send_scsi_raid_request(struct pqi_ctrl_info *ctrl_info, u8 cmd, |
564 | u8 *scsi3addr, void *buffer, size_t buffer_length, u16 vpd_page, | |
565 | struct pqi_raid_error_info *error_info, | |
566 | unsigned long timeout_msecs) | |
6c223761 KB |
567 | { |
568 | int rc; | |
6917a9cc | 569 | enum dma_data_direction dir; |
6c223761 KB |
570 | struct pqi_raid_path_request request; |
571 | ||
572 | rc = pqi_build_raid_path_request(ctrl_info, &request, | |
02133b68 DC |
573 | cmd, scsi3addr, buffer, |
574 | buffer_length, vpd_page, &dir); | |
6c223761 KB |
575 | if (rc) |
576 | return rc; | |
577 | ||
02133b68 DC |
578 | rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, |
579 | 0, error_info, timeout_msecs); | |
6c223761 | 580 | |
6917a9cc | 581 | pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir); |
6c223761 KB |
582 | return rc; |
583 | } | |
584 | ||
02133b68 DC |
585 | /* Helper functions for pqi_send_scsi_raid_request */ |
586 | ||
587 | static inline int pqi_send_ctrl_raid_request(struct pqi_ctrl_info *ctrl_info, | |
588 | u8 cmd, void *buffer, size_t buffer_length) | |
6c223761 | 589 | { |
02133b68 DC |
590 | return pqi_send_scsi_raid_request(ctrl_info, cmd, RAID_CTLR_LUNID, |
591 | buffer, buffer_length, 0, NULL, NO_TIMEOUT); | |
592 | } | |
6c223761 | 593 | |
02133b68 DC |
594 | static inline int pqi_send_ctrl_raid_with_error(struct pqi_ctrl_info *ctrl_info, |
595 | u8 cmd, void *buffer, size_t buffer_length, | |
596 | struct pqi_raid_error_info *error_info) | |
597 | { | |
598 | return pqi_send_scsi_raid_request(ctrl_info, cmd, RAID_CTLR_LUNID, | |
599 | buffer, buffer_length, 0, error_info, NO_TIMEOUT); | |
600 | } | |
6c223761 | 601 | |
6c223761 | 602 | |
02133b68 DC |
603 | static inline int pqi_identify_controller(struct pqi_ctrl_info *ctrl_info, |
604 | struct bmic_identify_controller *buffer) | |
605 | { | |
606 | return pqi_send_ctrl_raid_request(ctrl_info, BMIC_IDENTIFY_CONTROLLER, | |
607 | buffer, sizeof(*buffer)); | |
608 | } | |
609 | ||
610 | static inline int pqi_scsi_inquiry(struct pqi_ctrl_info *ctrl_info, | |
6c223761 | 611 | u8 *scsi3addr, u16 vpd_page, void *buffer, size_t buffer_length) |
02133b68 DC |
612 | { |
613 | return pqi_send_scsi_raid_request(ctrl_info, INQUIRY, scsi3addr, | |
614 | buffer, buffer_length, vpd_page, NULL, NO_TIMEOUT); | |
6c223761 KB |
615 | } |
616 | ||
cd128244 DC |
617 | static bool pqi_vpd_page_supported(struct pqi_ctrl_info *ctrl_info, |
618 | u8 *scsi3addr, u16 vpd_page) | |
6c223761 KB |
619 | { |
620 | int rc; | |
cd128244 DC |
621 | int i; |
622 | int pages; | |
623 | unsigned char *buf, bufsize; | |
6c223761 | 624 | |
cd128244 DC |
625 | buf = kzalloc(256, GFP_KERNEL); |
626 | if (!buf) | |
627 | return false; | |
6c223761 | 628 | |
cd128244 DC |
629 | /* Get the size of the page list first */ |
630 | rc = pqi_scsi_inquiry(ctrl_info, scsi3addr, | |
631 | VPD_PAGE | SCSI_VPD_SUPPORTED_PAGES, | |
632 | buf, SCSI_VPD_HEADER_SZ); | |
633 | if (rc != 0) | |
634 | goto exit_unsupported; | |
635 | ||
636 | pages = buf[3]; | |
637 | if ((pages + SCSI_VPD_HEADER_SZ) <= 255) | |
638 | bufsize = pages + SCSI_VPD_HEADER_SZ; | |
639 | else | |
640 | bufsize = 255; | |
641 | ||
642 | /* Get the whole VPD page list */ | |
643 | rc = pqi_scsi_inquiry(ctrl_info, scsi3addr, | |
644 | VPD_PAGE | SCSI_VPD_SUPPORTED_PAGES, | |
645 | buf, bufsize); | |
646 | if (rc != 0) | |
647 | goto exit_unsupported; | |
648 | ||
649 | pages = buf[3]; | |
650 | for (i = 1; i <= pages; i++) | |
651 | if (buf[3 + i] == vpd_page) | |
652 | goto exit_supported; | |
653 | ||
654 | exit_unsupported: | |
655 | kfree(buf); | |
656 | return false; | |
657 | ||
658 | exit_supported: | |
659 | kfree(buf); | |
660 | return true; | |
661 | } | |
662 | ||
663 | static int pqi_get_device_id(struct pqi_ctrl_info *ctrl_info, | |
664 | u8 *scsi3addr, u8 *device_id, int buflen) | |
665 | { | |
666 | int rc; | |
667 | unsigned char *buf; | |
668 | ||
669 | if (!pqi_vpd_page_supported(ctrl_info, scsi3addr, SCSI_VPD_DEVICE_ID)) | |
670 | return 1; /* function not supported */ | |
671 | ||
672 | buf = kzalloc(64, GFP_KERNEL); | |
673 | if (!buf) | |
674 | return -ENOMEM; | |
675 | ||
676 | rc = pqi_scsi_inquiry(ctrl_info, scsi3addr, | |
677 | VPD_PAGE | SCSI_VPD_DEVICE_ID, | |
678 | buf, 64); | |
679 | if (rc == 0) { | |
680 | if (buflen > 16) | |
681 | buflen = 16; | |
682 | memcpy(device_id, &buf[SCSI_VPD_DEVICE_ID_IDX], buflen); | |
683 | } | |
684 | ||
685 | kfree(buf); | |
6c223761 | 686 | |
6c223761 KB |
687 | return rc; |
688 | } | |
689 | ||
690 | static int pqi_identify_physical_device(struct pqi_ctrl_info *ctrl_info, | |
691 | struct pqi_scsi_dev *device, | |
692 | struct bmic_identify_physical_device *buffer, | |
693 | size_t buffer_length) | |
694 | { | |
695 | int rc; | |
6917a9cc | 696 | enum dma_data_direction dir; |
6c223761 KB |
697 | u16 bmic_device_index; |
698 | struct pqi_raid_path_request request; | |
699 | ||
700 | rc = pqi_build_raid_path_request(ctrl_info, &request, | |
701 | BMIC_IDENTIFY_PHYSICAL_DEVICE, RAID_CTLR_LUNID, buffer, | |
6917a9cc | 702 | buffer_length, 0, &dir); |
6c223761 KB |
703 | if (rc) |
704 | return rc; | |
705 | ||
706 | bmic_device_index = CISS_GET_DRIVE_NUMBER(device->scsi3addr); | |
707 | request.cdb[2] = (u8)bmic_device_index; | |
708 | request.cdb[9] = (u8)(bmic_device_index >> 8); | |
709 | ||
710 | rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, | |
711 | 0, NULL, NO_TIMEOUT); | |
712 | ||
6917a9cc | 713 | pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir); |
6c223761 KB |
714 | return rc; |
715 | } | |
716 | ||
58322fe0 KB |
717 | static int pqi_flush_cache(struct pqi_ctrl_info *ctrl_info, |
718 | enum bmic_flush_cache_shutdown_event shutdown_event) | |
6c223761 KB |
719 | { |
720 | int rc; | |
58322fe0 | 721 | struct bmic_flush_cache *flush_cache; |
6c223761 KB |
722 | |
723 | /* | |
724 | * Don't bother trying to flush the cache if the controller is | |
725 | * locked up. | |
726 | */ | |
727 | if (pqi_ctrl_offline(ctrl_info)) | |
728 | return -ENXIO; | |
729 | ||
58322fe0 KB |
730 | flush_cache = kzalloc(sizeof(*flush_cache), GFP_KERNEL); |
731 | if (!flush_cache) | |
6c223761 KB |
732 | return -ENOMEM; |
733 | ||
58322fe0 KB |
734 | flush_cache->shutdown_event = shutdown_event; |
735 | ||
02133b68 DC |
736 | rc = pqi_send_ctrl_raid_request(ctrl_info, SA_FLUSH_CACHE, flush_cache, |
737 | sizeof(*flush_cache)); | |
6c223761 | 738 | |
58322fe0 | 739 | kfree(flush_cache); |
6c223761 KB |
740 | |
741 | return rc; | |
742 | } | |
743 | ||
3d46a59a DB |
744 | int pqi_csmi_smp_passthru(struct pqi_ctrl_info *ctrl_info, |
745 | struct bmic_csmi_smp_passthru_buffer *buffer, size_t buffer_length, | |
746 | struct pqi_raid_error_info *error_info) | |
747 | { | |
748 | return pqi_send_ctrl_raid_with_error(ctrl_info, BMIC_CSMI_PASSTHRU, | |
749 | buffer, buffer_length, error_info); | |
750 | } | |
171c2865 DC |
751 | |
752 | #define PQI_FETCH_PTRAID_DATA (1UL<<31) | |
753 | ||
754 | static int pqi_set_diag_rescan(struct pqi_ctrl_info *ctrl_info) | |
6c223761 KB |
755 | { |
756 | int rc; | |
171c2865 | 757 | struct bmic_diag_options *diag; |
6c223761 | 758 | |
171c2865 DC |
759 | diag = kzalloc(sizeof(*diag), GFP_KERNEL); |
760 | if (!diag) | |
761 | return -ENOMEM; | |
762 | ||
02133b68 DC |
763 | rc = pqi_send_ctrl_raid_request(ctrl_info, BMIC_SENSE_DIAG_OPTIONS, |
764 | diag, sizeof(*diag)); | |
6c223761 | 765 | if (rc) |
171c2865 | 766 | goto out; |
6c223761 | 767 | |
171c2865 DC |
768 | diag->options |= cpu_to_le32(PQI_FETCH_PTRAID_DATA); |
769 | ||
02133b68 DC |
770 | rc = pqi_send_ctrl_raid_request(ctrl_info, BMIC_SET_DIAG_OPTIONS, |
771 | diag, sizeof(*diag)); | |
171c2865 DC |
772 | out: |
773 | kfree(diag); | |
6c223761 | 774 | |
6c223761 KB |
775 | return rc; |
776 | } | |
777 | ||
02133b68 | 778 | static inline int pqi_write_host_wellness(struct pqi_ctrl_info *ctrl_info, |
6c223761 KB |
779 | void *buffer, size_t buffer_length) |
780 | { | |
02133b68 DC |
781 | return pqi_send_ctrl_raid_request(ctrl_info, BMIC_WRITE_HOST_WELLNESS, |
782 | buffer, buffer_length); | |
6c223761 KB |
783 | } |
784 | ||
785 | #pragma pack(1) | |
786 | ||
787 | struct bmic_host_wellness_driver_version { | |
788 | u8 start_tag[4]; | |
789 | u8 driver_version_tag[2]; | |
790 | __le16 driver_version_length; | |
791 | char driver_version[32]; | |
b2346b50 | 792 | u8 dont_write_tag[2]; |
6c223761 KB |
793 | u8 end_tag[2]; |
794 | }; | |
795 | ||
796 | #pragma pack() | |
797 | ||
798 | static int pqi_write_driver_version_to_host_wellness( | |
799 | struct pqi_ctrl_info *ctrl_info) | |
800 | { | |
801 | int rc; | |
802 | struct bmic_host_wellness_driver_version *buffer; | |
803 | size_t buffer_length; | |
804 | ||
805 | buffer_length = sizeof(*buffer); | |
806 | ||
807 | buffer = kmalloc(buffer_length, GFP_KERNEL); | |
808 | if (!buffer) | |
809 | return -ENOMEM; | |
810 | ||
811 | buffer->start_tag[0] = '<'; | |
812 | buffer->start_tag[1] = 'H'; | |
813 | buffer->start_tag[2] = 'W'; | |
814 | buffer->start_tag[3] = '>'; | |
815 | buffer->driver_version_tag[0] = 'D'; | |
816 | buffer->driver_version_tag[1] = 'V'; | |
817 | put_unaligned_le16(sizeof(buffer->driver_version), | |
818 | &buffer->driver_version_length); | |
061ef06a | 819 | strncpy(buffer->driver_version, "Linux " DRIVER_VERSION, |
6c223761 KB |
820 | sizeof(buffer->driver_version) - 1); |
821 | buffer->driver_version[sizeof(buffer->driver_version) - 1] = '\0'; | |
b2346b50 MR |
822 | buffer->dont_write_tag[0] = 'D'; |
823 | buffer->dont_write_tag[1] = 'W'; | |
6c223761 KB |
824 | buffer->end_tag[0] = 'Z'; |
825 | buffer->end_tag[1] = 'Z'; | |
826 | ||
827 | rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length); | |
828 | ||
829 | kfree(buffer); | |
830 | ||
831 | return rc; | |
832 | } | |
833 | ||
834 | #pragma pack(1) | |
835 | ||
836 | struct bmic_host_wellness_time { | |
837 | u8 start_tag[4]; | |
838 | u8 time_tag[2]; | |
839 | __le16 time_length; | |
840 | u8 time[8]; | |
841 | u8 dont_write_tag[2]; | |
842 | u8 end_tag[2]; | |
843 | }; | |
844 | ||
845 | #pragma pack() | |
846 | ||
847 | static int pqi_write_current_time_to_host_wellness( | |
848 | struct pqi_ctrl_info *ctrl_info) | |
849 | { | |
850 | int rc; | |
851 | struct bmic_host_wellness_time *buffer; | |
852 | size_t buffer_length; | |
853 | time64_t local_time; | |
854 | unsigned int year; | |
ed10858e | 855 | struct tm tm; |
6c223761 KB |
856 | |
857 | buffer_length = sizeof(*buffer); | |
858 | ||
859 | buffer = kmalloc(buffer_length, GFP_KERNEL); | |
860 | if (!buffer) | |
861 | return -ENOMEM; | |
862 | ||
863 | buffer->start_tag[0] = '<'; | |
864 | buffer->start_tag[1] = 'H'; | |
865 | buffer->start_tag[2] = 'W'; | |
866 | buffer->start_tag[3] = '>'; | |
867 | buffer->time_tag[0] = 'T'; | |
868 | buffer->time_tag[1] = 'D'; | |
869 | put_unaligned_le16(sizeof(buffer->time), | |
870 | &buffer->time_length); | |
871 | ||
ed10858e AB |
872 | local_time = ktime_get_real_seconds(); |
873 | time64_to_tm(local_time, -sys_tz.tz_minuteswest * 60, &tm); | |
6c223761 KB |
874 | year = tm.tm_year + 1900; |
875 | ||
876 | buffer->time[0] = bin2bcd(tm.tm_hour); | |
877 | buffer->time[1] = bin2bcd(tm.tm_min); | |
878 | buffer->time[2] = bin2bcd(tm.tm_sec); | |
879 | buffer->time[3] = 0; | |
880 | buffer->time[4] = bin2bcd(tm.tm_mon + 1); | |
881 | buffer->time[5] = bin2bcd(tm.tm_mday); | |
882 | buffer->time[6] = bin2bcd(year / 100); | |
883 | buffer->time[7] = bin2bcd(year % 100); | |
884 | ||
885 | buffer->dont_write_tag[0] = 'D'; | |
886 | buffer->dont_write_tag[1] = 'W'; | |
887 | buffer->end_tag[0] = 'Z'; | |
888 | buffer->end_tag[1] = 'Z'; | |
889 | ||
890 | rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length); | |
891 | ||
892 | kfree(buffer); | |
893 | ||
894 | return rc; | |
895 | } | |
896 | ||
4fd22c13 | 897 | #define PQI_UPDATE_TIME_WORK_INTERVAL (24UL * 60 * 60 * PQI_HZ) |
6c223761 KB |
898 | |
899 | static void pqi_update_time_worker(struct work_struct *work) | |
900 | { | |
901 | int rc; | |
902 | struct pqi_ctrl_info *ctrl_info; | |
903 | ||
904 | ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info, | |
905 | update_time_work); | |
906 | ||
5f310425 KB |
907 | if (pqi_ctrl_offline(ctrl_info)) |
908 | return; | |
909 | ||
6c223761 KB |
910 | rc = pqi_write_current_time_to_host_wellness(ctrl_info); |
911 | if (rc) | |
912 | dev_warn(&ctrl_info->pci_dev->dev, | |
913 | "error updating time on controller\n"); | |
914 | ||
915 | schedule_delayed_work(&ctrl_info->update_time_work, | |
916 | PQI_UPDATE_TIME_WORK_INTERVAL); | |
917 | } | |
918 | ||
919 | static inline void pqi_schedule_update_time_worker( | |
4fbebf1a | 920 | struct pqi_ctrl_info *ctrl_info) |
6c223761 | 921 | { |
4fbebf1a | 922 | schedule_delayed_work(&ctrl_info->update_time_work, 0); |
061ef06a KB |
923 | } |
924 | ||
925 | static inline void pqi_cancel_update_time_worker( | |
926 | struct pqi_ctrl_info *ctrl_info) | |
927 | { | |
061ef06a | 928 | cancel_delayed_work_sync(&ctrl_info->update_time_work); |
6c223761 KB |
929 | } |
930 | ||
02133b68 | 931 | static inline int pqi_report_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd, |
6c223761 KB |
932 | void *buffer, size_t buffer_length) |
933 | { | |
02133b68 DC |
934 | return pqi_send_ctrl_raid_request(ctrl_info, cmd, buffer, |
935 | buffer_length); | |
6c223761 KB |
936 | } |
937 | ||
938 | static int pqi_report_phys_logical_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd, | |
939 | void **buffer) | |
940 | { | |
941 | int rc; | |
942 | size_t lun_list_length; | |
943 | size_t lun_data_length; | |
944 | size_t new_lun_list_length; | |
945 | void *lun_data = NULL; | |
946 | struct report_lun_header *report_lun_header; | |
947 | ||
948 | report_lun_header = kmalloc(sizeof(*report_lun_header), GFP_KERNEL); | |
949 | if (!report_lun_header) { | |
950 | rc = -ENOMEM; | |
951 | goto out; | |
952 | } | |
953 | ||
954 | rc = pqi_report_luns(ctrl_info, cmd, report_lun_header, | |
955 | sizeof(*report_lun_header)); | |
956 | if (rc) | |
957 | goto out; | |
958 | ||
959 | lun_list_length = get_unaligned_be32(&report_lun_header->list_length); | |
960 | ||
961 | again: | |
962 | lun_data_length = sizeof(struct report_lun_header) + lun_list_length; | |
963 | ||
964 | lun_data = kmalloc(lun_data_length, GFP_KERNEL); | |
965 | if (!lun_data) { | |
966 | rc = -ENOMEM; | |
967 | goto out; | |
968 | } | |
969 | ||
970 | if (lun_list_length == 0) { | |
971 | memcpy(lun_data, report_lun_header, sizeof(*report_lun_header)); | |
972 | goto out; | |
973 | } | |
974 | ||
975 | rc = pqi_report_luns(ctrl_info, cmd, lun_data, lun_data_length); | |
976 | if (rc) | |
977 | goto out; | |
978 | ||
979 | new_lun_list_length = get_unaligned_be32( | |
980 | &((struct report_lun_header *)lun_data)->list_length); | |
981 | ||
982 | if (new_lun_list_length > lun_list_length) { | |
983 | lun_list_length = new_lun_list_length; | |
984 | kfree(lun_data); | |
985 | goto again; | |
986 | } | |
987 | ||
988 | out: | |
989 | kfree(report_lun_header); | |
990 | ||
991 | if (rc) { | |
992 | kfree(lun_data); | |
993 | lun_data = NULL; | |
994 | } | |
995 | ||
996 | *buffer = lun_data; | |
997 | ||
998 | return rc; | |
999 | } | |
1000 | ||
1001 | static inline int pqi_report_phys_luns(struct pqi_ctrl_info *ctrl_info, | |
1002 | void **buffer) | |
1003 | { | |
1004 | return pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_PHYS, | |
1005 | buffer); | |
1006 | } | |
1007 | ||
1008 | static inline int pqi_report_logical_luns(struct pqi_ctrl_info *ctrl_info, | |
1009 | void **buffer) | |
1010 | { | |
1011 | return pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_LOG, buffer); | |
1012 | } | |
1013 | ||
1014 | static int pqi_get_device_lists(struct pqi_ctrl_info *ctrl_info, | |
1015 | struct report_phys_lun_extended **physdev_list, | |
1016 | struct report_log_lun_extended **logdev_list) | |
1017 | { | |
1018 | int rc; | |
1019 | size_t logdev_list_length; | |
1020 | size_t logdev_data_length; | |
1021 | struct report_log_lun_extended *internal_logdev_list; | |
1022 | struct report_log_lun_extended *logdev_data; | |
1023 | struct report_lun_header report_lun_header; | |
1024 | ||
1025 | rc = pqi_report_phys_luns(ctrl_info, (void **)physdev_list); | |
1026 | if (rc) | |
1027 | dev_err(&ctrl_info->pci_dev->dev, | |
1028 | "report physical LUNs failed\n"); | |
1029 | ||
1030 | rc = pqi_report_logical_luns(ctrl_info, (void **)logdev_list); | |
1031 | if (rc) | |
1032 | dev_err(&ctrl_info->pci_dev->dev, | |
1033 | "report logical LUNs failed\n"); | |
1034 | ||
1035 | /* | |
1036 | * Tack the controller itself onto the end of the logical device list. | |
1037 | */ | |
1038 | ||
1039 | logdev_data = *logdev_list; | |
1040 | ||
1041 | if (logdev_data) { | |
1042 | logdev_list_length = | |
1043 | get_unaligned_be32(&logdev_data->header.list_length); | |
1044 | } else { | |
1045 | memset(&report_lun_header, 0, sizeof(report_lun_header)); | |
1046 | logdev_data = | |
1047 | (struct report_log_lun_extended *)&report_lun_header; | |
1048 | logdev_list_length = 0; | |
1049 | } | |
1050 | ||
1051 | logdev_data_length = sizeof(struct report_lun_header) + | |
1052 | logdev_list_length; | |
1053 | ||
1054 | internal_logdev_list = kmalloc(logdev_data_length + | |
1055 | sizeof(struct report_log_lun_extended), GFP_KERNEL); | |
1056 | if (!internal_logdev_list) { | |
1057 | kfree(*logdev_list); | |
1058 | *logdev_list = NULL; | |
1059 | return -ENOMEM; | |
1060 | } | |
1061 | ||
1062 | memcpy(internal_logdev_list, logdev_data, logdev_data_length); | |
1063 | memset((u8 *)internal_logdev_list + logdev_data_length, 0, | |
1064 | sizeof(struct report_log_lun_extended_entry)); | |
1065 | put_unaligned_be32(logdev_list_length + | |
1066 | sizeof(struct report_log_lun_extended_entry), | |
1067 | &internal_logdev_list->header.list_length); | |
1068 | ||
1069 | kfree(*logdev_list); | |
1070 | *logdev_list = internal_logdev_list; | |
1071 | ||
1072 | return 0; | |
1073 | } | |
1074 | ||
1075 | static inline void pqi_set_bus_target_lun(struct pqi_scsi_dev *device, | |
1076 | int bus, int target, int lun) | |
1077 | { | |
1078 | device->bus = bus; | |
1079 | device->target = target; | |
1080 | device->lun = lun; | |
1081 | } | |
1082 | ||
1083 | static void pqi_assign_bus_target_lun(struct pqi_scsi_dev *device) | |
1084 | { | |
1085 | u8 *scsi3addr; | |
1086 | u32 lunid; | |
bd10cf0b KB |
1087 | int bus; |
1088 | int target; | |
1089 | int lun; | |
6c223761 KB |
1090 | |
1091 | scsi3addr = device->scsi3addr; | |
1092 | lunid = get_unaligned_le32(scsi3addr); | |
1093 | ||
1094 | if (pqi_is_hba_lunid(scsi3addr)) { | |
1095 | /* The specified device is the controller. */ | |
1096 | pqi_set_bus_target_lun(device, PQI_HBA_BUS, 0, lunid & 0x3fff); | |
1097 | device->target_lun_valid = true; | |
1098 | return; | |
1099 | } | |
1100 | ||
1101 | if (pqi_is_logical_device(device)) { | |
bd10cf0b KB |
1102 | if (device->is_external_raid_device) { |
1103 | bus = PQI_EXTERNAL_RAID_VOLUME_BUS; | |
1104 | target = (lunid >> 16) & 0x3fff; | |
1105 | lun = lunid & 0xff; | |
1106 | } else { | |
1107 | bus = PQI_RAID_VOLUME_BUS; | |
1108 | target = 0; | |
1109 | lun = lunid & 0x3fff; | |
1110 | } | |
1111 | pqi_set_bus_target_lun(device, bus, target, lun); | |
6c223761 KB |
1112 | device->target_lun_valid = true; |
1113 | return; | |
1114 | } | |
1115 | ||
1116 | /* | |
1117 | * Defer target and LUN assignment for non-controller physical devices | |
1118 | * because the SAS transport layer will make these assignments later. | |
1119 | */ | |
1120 | pqi_set_bus_target_lun(device, PQI_PHYSICAL_DEVICE_BUS, 0, 0); | |
1121 | } | |
1122 | ||
1123 | static void pqi_get_raid_level(struct pqi_ctrl_info *ctrl_info, | |
1124 | struct pqi_scsi_dev *device) | |
1125 | { | |
1126 | int rc; | |
1127 | u8 raid_level; | |
1128 | u8 *buffer; | |
1129 | ||
1130 | raid_level = SA_RAID_UNKNOWN; | |
1131 | ||
1132 | buffer = kmalloc(64, GFP_KERNEL); | |
1133 | if (buffer) { | |
1134 | rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, | |
1135 | VPD_PAGE | CISS_VPD_LV_DEVICE_GEOMETRY, buffer, 64); | |
1136 | if (rc == 0) { | |
1137 | raid_level = buffer[8]; | |
1138 | if (raid_level > SA_RAID_MAX) | |
1139 | raid_level = SA_RAID_UNKNOWN; | |
1140 | } | |
1141 | kfree(buffer); | |
1142 | } | |
1143 | ||
1144 | device->raid_level = raid_level; | |
1145 | } | |
1146 | ||
1147 | static int pqi_validate_raid_map(struct pqi_ctrl_info *ctrl_info, | |
1148 | struct pqi_scsi_dev *device, struct raid_map *raid_map) | |
1149 | { | |
1150 | char *err_msg; | |
1151 | u32 raid_map_size; | |
1152 | u32 r5or6_blocks_per_row; | |
6c223761 KB |
1153 | |
1154 | raid_map_size = get_unaligned_le32(&raid_map->structure_size); | |
1155 | ||
1156 | if (raid_map_size < offsetof(struct raid_map, disk_data)) { | |
1157 | err_msg = "RAID map too small"; | |
1158 | goto bad_raid_map; | |
1159 | } | |
1160 | ||
6c223761 KB |
1161 | if (device->raid_level == SA_RAID_1) { |
1162 | if (get_unaligned_le16(&raid_map->layout_map_count) != 2) { | |
1163 | err_msg = "invalid RAID-1 map"; | |
1164 | goto bad_raid_map; | |
1165 | } | |
1166 | } else if (device->raid_level == SA_RAID_ADM) { | |
1167 | if (get_unaligned_le16(&raid_map->layout_map_count) != 3) { | |
1168 | err_msg = "invalid RAID-1(ADM) map"; | |
1169 | goto bad_raid_map; | |
1170 | } | |
1171 | } else if ((device->raid_level == SA_RAID_5 || | |
1172 | device->raid_level == SA_RAID_6) && | |
1173 | get_unaligned_le16(&raid_map->layout_map_count) > 1) { | |
1174 | /* RAID 50/60 */ | |
1175 | r5or6_blocks_per_row = | |
1176 | get_unaligned_le16(&raid_map->strip_size) * | |
1177 | get_unaligned_le16(&raid_map->data_disks_per_row); | |
1178 | if (r5or6_blocks_per_row == 0) { | |
1179 | err_msg = "invalid RAID-5 or RAID-6 map"; | |
1180 | goto bad_raid_map; | |
1181 | } | |
1182 | } | |
1183 | ||
1184 | return 0; | |
1185 | ||
1186 | bad_raid_map: | |
d87d5474 | 1187 | dev_warn(&ctrl_info->pci_dev->dev, |
38a7338a KB |
1188 | "logical device %08x%08x %s\n", |
1189 | *((u32 *)&device->scsi3addr), | |
1190 | *((u32 *)&device->scsi3addr[4]), err_msg); | |
6c223761 KB |
1191 | |
1192 | return -EINVAL; | |
1193 | } | |
1194 | ||
1195 | static int pqi_get_raid_map(struct pqi_ctrl_info *ctrl_info, | |
1196 | struct pqi_scsi_dev *device) | |
1197 | { | |
1198 | int rc; | |
a91aaae0 | 1199 | u32 raid_map_size; |
6c223761 KB |
1200 | struct raid_map *raid_map; |
1201 | ||
1202 | raid_map = kmalloc(sizeof(*raid_map), GFP_KERNEL); | |
1203 | if (!raid_map) | |
1204 | return -ENOMEM; | |
1205 | ||
a91aaae0 AK |
1206 | rc = pqi_send_scsi_raid_request(ctrl_info, CISS_GET_RAID_MAP, |
1207 | device->scsi3addr, raid_map, sizeof(*raid_map), | |
1208 | 0, NULL, NO_TIMEOUT); | |
1209 | ||
6c223761 KB |
1210 | if (rc) |
1211 | goto error; | |
1212 | ||
a91aaae0 | 1213 | raid_map_size = get_unaligned_le32(&raid_map->structure_size); |
6c223761 | 1214 | |
a91aaae0 | 1215 | if (raid_map_size > sizeof(*raid_map)) { |
6c223761 | 1216 | |
a91aaae0 AK |
1217 | kfree(raid_map); |
1218 | ||
1219 | raid_map = kmalloc(raid_map_size, GFP_KERNEL); | |
1220 | if (!raid_map) | |
1221 | return -ENOMEM; | |
1222 | ||
1223 | rc = pqi_send_scsi_raid_request(ctrl_info, CISS_GET_RAID_MAP, | |
1224 | device->scsi3addr, raid_map, raid_map_size, | |
1225 | 0, NULL, NO_TIMEOUT); | |
1226 | if (rc) | |
1227 | goto error; | |
1228 | ||
1229 | if (get_unaligned_le32(&raid_map->structure_size) | |
1230 | != raid_map_size) { | |
1231 | dev_warn(&ctrl_info->pci_dev->dev, | |
1232 | "Requested %d bytes, received %d bytes", | |
1233 | raid_map_size, | |
1234 | get_unaligned_le32(&raid_map->structure_size)); | |
1235 | goto error; | |
1236 | } | |
1237 | } | |
6c223761 KB |
1238 | |
1239 | rc = pqi_validate_raid_map(ctrl_info, device, raid_map); | |
1240 | if (rc) | |
1241 | goto error; | |
1242 | ||
1243 | device->raid_map = raid_map; | |
1244 | ||
1245 | return 0; | |
1246 | ||
1247 | error: | |
1248 | kfree(raid_map); | |
1249 | ||
1250 | return rc; | |
1251 | } | |
1252 | ||
588a63fe | 1253 | static void pqi_get_raid_bypass_status(struct pqi_ctrl_info *ctrl_info, |
6c223761 KB |
1254 | struct pqi_scsi_dev *device) |
1255 | { | |
1256 | int rc; | |
1257 | u8 *buffer; | |
588a63fe | 1258 | u8 bypass_status; |
6c223761 KB |
1259 | |
1260 | buffer = kmalloc(64, GFP_KERNEL); | |
1261 | if (!buffer) | |
1262 | return; | |
1263 | ||
1264 | rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, | |
588a63fe | 1265 | VPD_PAGE | CISS_VPD_LV_BYPASS_STATUS, buffer, 64); |
6c223761 KB |
1266 | if (rc) |
1267 | goto out; | |
1268 | ||
588a63fe KB |
1269 | #define RAID_BYPASS_STATUS 4 |
1270 | #define RAID_BYPASS_CONFIGURED 0x1 | |
1271 | #define RAID_BYPASS_ENABLED 0x2 | |
6c223761 | 1272 | |
588a63fe KB |
1273 | bypass_status = buffer[RAID_BYPASS_STATUS]; |
1274 | device->raid_bypass_configured = | |
1275 | (bypass_status & RAID_BYPASS_CONFIGURED) != 0; | |
1276 | if (device->raid_bypass_configured && | |
1277 | (bypass_status & RAID_BYPASS_ENABLED) && | |
1278 | pqi_get_raid_map(ctrl_info, device) == 0) | |
1279 | device->raid_bypass_enabled = true; | |
6c223761 KB |
1280 | |
1281 | out: | |
1282 | kfree(buffer); | |
1283 | } | |
1284 | ||
1285 | /* | |
1286 | * Use vendor-specific VPD to determine online/offline status of a volume. | |
1287 | */ | |
1288 | ||
1289 | static void pqi_get_volume_status(struct pqi_ctrl_info *ctrl_info, | |
1290 | struct pqi_scsi_dev *device) | |
1291 | { | |
1292 | int rc; | |
1293 | size_t page_length; | |
1294 | u8 volume_status = CISS_LV_STATUS_UNAVAILABLE; | |
1295 | bool volume_offline = true; | |
1296 | u32 volume_flags; | |
1297 | struct ciss_vpd_logical_volume_status *vpd; | |
1298 | ||
1299 | vpd = kmalloc(sizeof(*vpd), GFP_KERNEL); | |
1300 | if (!vpd) | |
1301 | goto no_buffer; | |
1302 | ||
1303 | rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, | |
1304 | VPD_PAGE | CISS_VPD_LV_STATUS, vpd, sizeof(*vpd)); | |
1305 | if (rc) | |
1306 | goto out; | |
1307 | ||
7ff44499 DC |
1308 | if (vpd->page_code != CISS_VPD_LV_STATUS) |
1309 | goto out; | |
1310 | ||
6c223761 KB |
1311 | page_length = offsetof(struct ciss_vpd_logical_volume_status, |
1312 | volume_status) + vpd->page_length; | |
1313 | if (page_length < sizeof(*vpd)) | |
1314 | goto out; | |
1315 | ||
1316 | volume_status = vpd->volume_status; | |
1317 | volume_flags = get_unaligned_be32(&vpd->flags); | |
1318 | volume_offline = (volume_flags & CISS_LV_FLAGS_NO_HOST_IO) != 0; | |
1319 | ||
1320 | out: | |
1321 | kfree(vpd); | |
1322 | no_buffer: | |
1323 | device->volume_status = volume_status; | |
1324 | device->volume_offline = volume_offline; | |
1325 | } | |
1326 | ||
26b390ab KB |
1327 | #define PQI_INQUIRY_PAGE0_RETRIES 3 |
1328 | ||
6c223761 KB |
1329 | static int pqi_get_device_info(struct pqi_ctrl_info *ctrl_info, |
1330 | struct pqi_scsi_dev *device) | |
1331 | { | |
1332 | int rc; | |
1333 | u8 *buffer; | |
26b390ab | 1334 | unsigned int retries; |
6c223761 | 1335 | |
3d46a59a DB |
1336 | if (device->is_expander_smp_device) |
1337 | return 0; | |
1338 | ||
6c223761 KB |
1339 | buffer = kmalloc(64, GFP_KERNEL); |
1340 | if (!buffer) | |
1341 | return -ENOMEM; | |
1342 | ||
1343 | /* Send an inquiry to the device to see what it is. */ | |
26b390ab KB |
1344 | for (retries = 0;;) { |
1345 | rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 0, | |
1346 | buffer, 64); | |
1347 | if (rc == 0) | |
1348 | break; | |
1349 | if (pqi_is_logical_device(device) || | |
1350 | rc != PQI_CMD_STATUS_ABORTED || | |
1351 | ++retries > PQI_INQUIRY_PAGE0_RETRIES) | |
1352 | goto out; | |
1353 | } | |
6c223761 KB |
1354 | |
1355 | scsi_sanitize_inquiry_string(&buffer[8], 8); | |
1356 | scsi_sanitize_inquiry_string(&buffer[16], 16); | |
1357 | ||
1358 | device->devtype = buffer[0] & 0x1f; | |
cbe0c7b1 KB |
1359 | memcpy(device->vendor, &buffer[8], sizeof(device->vendor)); |
1360 | memcpy(device->model, &buffer[16], sizeof(device->model)); | |
6c223761 KB |
1361 | |
1362 | if (pqi_is_logical_device(device) && device->devtype == TYPE_DISK) { | |
bd10cf0b KB |
1363 | if (device->is_external_raid_device) { |
1364 | device->raid_level = SA_RAID_UNKNOWN; | |
1365 | device->volume_status = CISS_LV_OK; | |
1366 | device->volume_offline = false; | |
1367 | } else { | |
1368 | pqi_get_raid_level(ctrl_info, device); | |
588a63fe | 1369 | pqi_get_raid_bypass_status(ctrl_info, device); |
bd10cf0b KB |
1370 | pqi_get_volume_status(ctrl_info, device); |
1371 | } | |
6c223761 KB |
1372 | } |
1373 | ||
cd128244 DC |
1374 | if (pqi_get_device_id(ctrl_info, device->scsi3addr, |
1375 | device->unique_id, sizeof(device->unique_id)) < 0) | |
1376 | dev_warn(&ctrl_info->pci_dev->dev, | |
1377 | "Can't get device id for scsi %d:%d:%d:%d\n", | |
1378 | ctrl_info->scsi_host->host_no, | |
1379 | device->bus, device->target, | |
1380 | device->lun); | |
1381 | ||
6c223761 KB |
1382 | out: |
1383 | kfree(buffer); | |
1384 | ||
1385 | return rc; | |
1386 | } | |
1387 | ||
1388 | static void pqi_get_physical_disk_info(struct pqi_ctrl_info *ctrl_info, | |
1389 | struct pqi_scsi_dev *device, | |
1390 | struct bmic_identify_physical_device *id_phys) | |
1391 | { | |
1392 | int rc; | |
1393 | ||
1394 | memset(id_phys, 0, sizeof(*id_phys)); | |
1395 | ||
1396 | rc = pqi_identify_physical_device(ctrl_info, device, | |
1397 | id_phys, sizeof(*id_phys)); | |
1398 | if (rc) { | |
1399 | device->queue_depth = PQI_PHYSICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH; | |
1400 | return; | |
1401 | } | |
1402 | ||
1403 | device->queue_depth = | |
1404 | get_unaligned_le16(&id_phys->current_queue_depth_limit); | |
1405 | device->device_type = id_phys->device_type; | |
1406 | device->active_path_index = id_phys->active_path_number; | |
1407 | device->path_map = id_phys->redundant_path_present_map; | |
1408 | memcpy(&device->box, | |
1409 | &id_phys->alternate_paths_phys_box_on_port, | |
1410 | sizeof(device->box)); | |
1411 | memcpy(&device->phys_connector, | |
1412 | &id_phys->alternate_paths_phys_connector, | |
1413 | sizeof(device->phys_connector)); | |
1414 | device->bay = id_phys->phys_bay_in_box; | |
1415 | } | |
1416 | ||
1417 | static void pqi_show_volume_status(struct pqi_ctrl_info *ctrl_info, | |
1418 | struct pqi_scsi_dev *device) | |
1419 | { | |
1420 | char *status; | |
1421 | static const char unknown_state_str[] = | |
1422 | "Volume is in an unknown state (%u)"; | |
1423 | char unknown_state_buffer[sizeof(unknown_state_str) + 10]; | |
1424 | ||
1425 | switch (device->volume_status) { | |
1426 | case CISS_LV_OK: | |
1427 | status = "Volume online"; | |
1428 | break; | |
1429 | case CISS_LV_FAILED: | |
1430 | status = "Volume failed"; | |
1431 | break; | |
1432 | case CISS_LV_NOT_CONFIGURED: | |
1433 | status = "Volume not configured"; | |
1434 | break; | |
1435 | case CISS_LV_DEGRADED: | |
1436 | status = "Volume degraded"; | |
1437 | break; | |
1438 | case CISS_LV_READY_FOR_RECOVERY: | |
1439 | status = "Volume ready for recovery operation"; | |
1440 | break; | |
1441 | case CISS_LV_UNDERGOING_RECOVERY: | |
1442 | status = "Volume undergoing recovery"; | |
1443 | break; | |
1444 | case CISS_LV_WRONG_PHYSICAL_DRIVE_REPLACED: | |
1445 | status = "Wrong physical drive was replaced"; | |
1446 | break; | |
1447 | case CISS_LV_PHYSICAL_DRIVE_CONNECTION_PROBLEM: | |
1448 | status = "A physical drive not properly connected"; | |
1449 | break; | |
1450 | case CISS_LV_HARDWARE_OVERHEATING: | |
1451 | status = "Hardware is overheating"; | |
1452 | break; | |
1453 | case CISS_LV_HARDWARE_HAS_OVERHEATED: | |
1454 | status = "Hardware has overheated"; | |
1455 | break; | |
1456 | case CISS_LV_UNDERGOING_EXPANSION: | |
1457 | status = "Volume undergoing expansion"; | |
1458 | break; | |
1459 | case CISS_LV_NOT_AVAILABLE: | |
1460 | status = "Volume waiting for transforming volume"; | |
1461 | break; | |
1462 | case CISS_LV_QUEUED_FOR_EXPANSION: | |
1463 | status = "Volume queued for expansion"; | |
1464 | break; | |
1465 | case CISS_LV_DISABLED_SCSI_ID_CONFLICT: | |
1466 | status = "Volume disabled due to SCSI ID conflict"; | |
1467 | break; | |
1468 | case CISS_LV_EJECTED: | |
1469 | status = "Volume has been ejected"; | |
1470 | break; | |
1471 | case CISS_LV_UNDERGOING_ERASE: | |
1472 | status = "Volume undergoing background erase"; | |
1473 | break; | |
1474 | case CISS_LV_READY_FOR_PREDICTIVE_SPARE_REBUILD: | |
1475 | status = "Volume ready for predictive spare rebuild"; | |
1476 | break; | |
1477 | case CISS_LV_UNDERGOING_RPI: | |
1478 | status = "Volume undergoing rapid parity initialization"; | |
1479 | break; | |
1480 | case CISS_LV_PENDING_RPI: | |
1481 | status = "Volume queued for rapid parity initialization"; | |
1482 | break; | |
1483 | case CISS_LV_ENCRYPTED_NO_KEY: | |
1484 | status = "Encrypted volume inaccessible - key not present"; | |
1485 | break; | |
1486 | case CISS_LV_UNDERGOING_ENCRYPTION: | |
1487 | status = "Volume undergoing encryption process"; | |
1488 | break; | |
1489 | case CISS_LV_UNDERGOING_ENCRYPTION_REKEYING: | |
1490 | status = "Volume undergoing encryption re-keying process"; | |
1491 | break; | |
1492 | case CISS_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER: | |
d87d5474 | 1493 | status = "Volume encrypted but encryption is disabled"; |
6c223761 KB |
1494 | break; |
1495 | case CISS_LV_PENDING_ENCRYPTION: | |
1496 | status = "Volume pending migration to encrypted state"; | |
1497 | break; | |
1498 | case CISS_LV_PENDING_ENCRYPTION_REKEYING: | |
1499 | status = "Volume pending encryption rekeying"; | |
1500 | break; | |
1501 | case CISS_LV_NOT_SUPPORTED: | |
1502 | status = "Volume not supported on this controller"; | |
1503 | break; | |
1504 | case CISS_LV_STATUS_UNAVAILABLE: | |
1505 | status = "Volume status not available"; | |
1506 | break; | |
1507 | default: | |
1508 | snprintf(unknown_state_buffer, sizeof(unknown_state_buffer), | |
1509 | unknown_state_str, device->volume_status); | |
1510 | status = unknown_state_buffer; | |
1511 | break; | |
1512 | } | |
1513 | ||
1514 | dev_info(&ctrl_info->pci_dev->dev, | |
1515 | "scsi %d:%d:%d:%d %s\n", | |
1516 | ctrl_info->scsi_host->host_no, | |
1517 | device->bus, device->target, device->lun, status); | |
1518 | } | |
1519 | ||
6c223761 KB |
1520 | static void pqi_rescan_worker(struct work_struct *work) |
1521 | { | |
1522 | struct pqi_ctrl_info *ctrl_info; | |
1523 | ||
1524 | ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info, | |
1525 | rescan_work); | |
1526 | ||
1527 | pqi_scan_scsi_devices(ctrl_info); | |
1528 | } | |
1529 | ||
1530 | static int pqi_add_device(struct pqi_ctrl_info *ctrl_info, | |
1531 | struct pqi_scsi_dev *device) | |
1532 | { | |
1533 | int rc; | |
1534 | ||
1535 | if (pqi_is_logical_device(device)) | |
1536 | rc = scsi_add_device(ctrl_info->scsi_host, device->bus, | |
1537 | device->target, device->lun); | |
1538 | else | |
1539 | rc = pqi_add_sas_device(ctrl_info->sas_host, device); | |
1540 | ||
1541 | return rc; | |
1542 | } | |
1543 | ||
1e46731e MR |
1544 | #define PQI_PENDING_IO_TIMEOUT_SECS 20 |
1545 | ||
6c223761 KB |
1546 | static inline void pqi_remove_device(struct pqi_ctrl_info *ctrl_info, |
1547 | struct pqi_scsi_dev *device) | |
1548 | { | |
1e46731e MR |
1549 | int rc; |
1550 | ||
1551 | pqi_device_remove_start(device); | |
1552 | ||
1553 | rc = pqi_device_wait_for_pending_io(ctrl_info, device, | |
1554 | PQI_PENDING_IO_TIMEOUT_SECS); | |
1555 | if (rc) | |
1556 | dev_err(&ctrl_info->pci_dev->dev, | |
1557 | "scsi %d:%d:%d:%d removing device with %d outstanding commands\n", | |
1558 | ctrl_info->scsi_host->host_no, device->bus, | |
1559 | device->target, device->lun, | |
1560 | atomic_read(&device->scsi_cmds_outstanding)); | |
1561 | ||
6c223761 KB |
1562 | if (pqi_is_logical_device(device)) |
1563 | scsi_remove_device(device->sdev); | |
1564 | else | |
1565 | pqi_remove_sas_device(device); | |
1566 | } | |
1567 | ||
1568 | /* Assumes the SCSI device list lock is held. */ | |
1569 | ||
1570 | static struct pqi_scsi_dev *pqi_find_scsi_dev(struct pqi_ctrl_info *ctrl_info, | |
1571 | int bus, int target, int lun) | |
1572 | { | |
1573 | struct pqi_scsi_dev *device; | |
1574 | ||
1575 | list_for_each_entry(device, &ctrl_info->scsi_device_list, | |
1576 | scsi_device_list_entry) | |
1577 | if (device->bus == bus && device->target == target && | |
1578 | device->lun == lun) | |
1579 | return device; | |
1580 | ||
1581 | return NULL; | |
1582 | } | |
1583 | ||
1584 | static inline bool pqi_device_equal(struct pqi_scsi_dev *dev1, | |
1585 | struct pqi_scsi_dev *dev2) | |
1586 | { | |
1587 | if (dev1->is_physical_device != dev2->is_physical_device) | |
1588 | return false; | |
1589 | ||
1590 | if (dev1->is_physical_device) | |
1591 | return dev1->wwid == dev2->wwid; | |
1592 | ||
1593 | return memcmp(dev1->volume_id, dev2->volume_id, | |
1594 | sizeof(dev1->volume_id)) == 0; | |
1595 | } | |
1596 | ||
1597 | enum pqi_find_result { | |
1598 | DEVICE_NOT_FOUND, | |
1599 | DEVICE_CHANGED, | |
1600 | DEVICE_SAME, | |
1601 | }; | |
1602 | ||
1603 | static enum pqi_find_result pqi_scsi_find_entry(struct pqi_ctrl_info *ctrl_info, | |
1604 | struct pqi_scsi_dev *device_to_find, | |
1605 | struct pqi_scsi_dev **matching_device) | |
1606 | { | |
1607 | struct pqi_scsi_dev *device; | |
1608 | ||
1609 | list_for_each_entry(device, &ctrl_info->scsi_device_list, | |
1610 | scsi_device_list_entry) { | |
1611 | if (pqi_scsi3addr_equal(device_to_find->scsi3addr, | |
1612 | device->scsi3addr)) { | |
1613 | *matching_device = device; | |
1614 | if (pqi_device_equal(device_to_find, device)) { | |
1615 | if (device_to_find->volume_offline) | |
1616 | return DEVICE_CHANGED; | |
1617 | return DEVICE_SAME; | |
1618 | } | |
1619 | return DEVICE_CHANGED; | |
1620 | } | |
1621 | } | |
1622 | ||
1623 | return DEVICE_NOT_FOUND; | |
1624 | } | |
1625 | ||
3d46a59a DB |
1626 | static inline const char *pqi_device_type(struct pqi_scsi_dev *device) |
1627 | { | |
1628 | if (device->is_expander_smp_device) | |
1629 | return "Enclosure SMP "; | |
1630 | ||
1631 | return scsi_device_type(device->devtype); | |
1632 | } | |
1633 | ||
6de783f6 KB |
1634 | #define PQI_DEV_INFO_BUFFER_LENGTH 128 |
1635 | ||
6c223761 KB |
1636 | static void pqi_dev_info(struct pqi_ctrl_info *ctrl_info, |
1637 | char *action, struct pqi_scsi_dev *device) | |
1638 | { | |
6de783f6 KB |
1639 | ssize_t count; |
1640 | char buffer[PQI_DEV_INFO_BUFFER_LENGTH]; | |
1641 | ||
1642 | count = snprintf(buffer, PQI_DEV_INFO_BUFFER_LENGTH, | |
1643 | "%d:%d:", ctrl_info->scsi_host->host_no, device->bus); | |
1644 | ||
1645 | if (device->target_lun_valid) | |
1646 | count += snprintf(buffer + count, | |
1647 | PQI_DEV_INFO_BUFFER_LENGTH - count, | |
1648 | "%d:%d", | |
1649 | device->target, | |
1650 | device->lun); | |
1651 | else | |
1652 | count += snprintf(buffer + count, | |
1653 | PQI_DEV_INFO_BUFFER_LENGTH - count, | |
1654 | "-:-"); | |
1655 | ||
1656 | if (pqi_is_logical_device(device)) | |
1657 | count += snprintf(buffer + count, | |
1658 | PQI_DEV_INFO_BUFFER_LENGTH - count, | |
1659 | " %08x%08x", | |
1660 | *((u32 *)&device->scsi3addr), | |
1661 | *((u32 *)&device->scsi3addr[4])); | |
1662 | else | |
1663 | count += snprintf(buffer + count, | |
1664 | PQI_DEV_INFO_BUFFER_LENGTH - count, | |
1665 | " %016llx", device->sas_address); | |
1666 | ||
1667 | count += snprintf(buffer + count, PQI_DEV_INFO_BUFFER_LENGTH - count, | |
1668 | " %s %.8s %.16s ", | |
3d46a59a | 1669 | pqi_device_type(device), |
6c223761 | 1670 | device->vendor, |
6de783f6 KB |
1671 | device->model); |
1672 | ||
1673 | if (pqi_is_logical_device(device)) { | |
1674 | if (device->devtype == TYPE_DISK) | |
1675 | count += snprintf(buffer + count, | |
1676 | PQI_DEV_INFO_BUFFER_LENGTH - count, | |
1677 | "SSDSmartPathCap%c En%c %-12s", | |
588a63fe KB |
1678 | device->raid_bypass_configured ? '+' : '-', |
1679 | device->raid_bypass_enabled ? '+' : '-', | |
6de783f6 KB |
1680 | pqi_raid_level_to_string(device->raid_level)); |
1681 | } else { | |
1682 | count += snprintf(buffer + count, | |
1683 | PQI_DEV_INFO_BUFFER_LENGTH - count, | |
1684 | "AIO%c", device->aio_enabled ? '+' : '-'); | |
1685 | if (device->devtype == TYPE_DISK || | |
1686 | device->devtype == TYPE_ZBC) | |
1687 | count += snprintf(buffer + count, | |
1688 | PQI_DEV_INFO_BUFFER_LENGTH - count, | |
1689 | " qd=%-6d", device->queue_depth); | |
1690 | } | |
1691 | ||
1692 | dev_info(&ctrl_info->pci_dev->dev, "%s %s\n", action, buffer); | |
6c223761 KB |
1693 | } |
1694 | ||
1695 | /* Assumes the SCSI device list lock is held. */ | |
1696 | ||
1697 | static void pqi_scsi_update_device(struct pqi_scsi_dev *existing_device, | |
1698 | struct pqi_scsi_dev *new_device) | |
1699 | { | |
1700 | existing_device->devtype = new_device->devtype; | |
1701 | existing_device->device_type = new_device->device_type; | |
1702 | existing_device->bus = new_device->bus; | |
1703 | if (new_device->target_lun_valid) { | |
1704 | existing_device->target = new_device->target; | |
1705 | existing_device->lun = new_device->lun; | |
1706 | existing_device->target_lun_valid = true; | |
1707 | } | |
1708 | ||
1709 | /* By definition, the scsi3addr and wwid fields are already the same. */ | |
1710 | ||
1711 | existing_device->is_physical_device = new_device->is_physical_device; | |
bd10cf0b KB |
1712 | existing_device->is_external_raid_device = |
1713 | new_device->is_external_raid_device; | |
3d46a59a DB |
1714 | existing_device->is_expander_smp_device = |
1715 | new_device->is_expander_smp_device; | |
6c223761 KB |
1716 | existing_device->aio_enabled = new_device->aio_enabled; |
1717 | memcpy(existing_device->vendor, new_device->vendor, | |
1718 | sizeof(existing_device->vendor)); | |
1719 | memcpy(existing_device->model, new_device->model, | |
1720 | sizeof(existing_device->model)); | |
1721 | existing_device->sas_address = new_device->sas_address; | |
1722 | existing_device->raid_level = new_device->raid_level; | |
1723 | existing_device->queue_depth = new_device->queue_depth; | |
1724 | existing_device->aio_handle = new_device->aio_handle; | |
1725 | existing_device->volume_status = new_device->volume_status; | |
1726 | existing_device->active_path_index = new_device->active_path_index; | |
1727 | existing_device->path_map = new_device->path_map; | |
1728 | existing_device->bay = new_device->bay; | |
1729 | memcpy(existing_device->box, new_device->box, | |
1730 | sizeof(existing_device->box)); | |
1731 | memcpy(existing_device->phys_connector, new_device->phys_connector, | |
1732 | sizeof(existing_device->phys_connector)); | |
6c223761 KB |
1733 | existing_device->offload_to_mirror = 0; |
1734 | kfree(existing_device->raid_map); | |
1735 | existing_device->raid_map = new_device->raid_map; | |
588a63fe KB |
1736 | existing_device->raid_bypass_configured = |
1737 | new_device->raid_bypass_configured; | |
1738 | existing_device->raid_bypass_enabled = | |
1739 | new_device->raid_bypass_enabled; | |
a9a68101 | 1740 | existing_device->device_offline = false; |
6c223761 KB |
1741 | |
1742 | /* To prevent this from being freed later. */ | |
1743 | new_device->raid_map = NULL; | |
1744 | } | |
1745 | ||
1746 | static inline void pqi_free_device(struct pqi_scsi_dev *device) | |
1747 | { | |
1748 | if (device) { | |
1749 | kfree(device->raid_map); | |
1750 | kfree(device); | |
1751 | } | |
1752 | } | |
1753 | ||
1754 | /* | |
1755 | * Called when exposing a new device to the OS fails in order to re-adjust | |
1756 | * our internal SCSI device list to match the SCSI ML's view. | |
1757 | */ | |
1758 | ||
1759 | static inline void pqi_fixup_botched_add(struct pqi_ctrl_info *ctrl_info, | |
1760 | struct pqi_scsi_dev *device) | |
1761 | { | |
1762 | unsigned long flags; | |
1763 | ||
1764 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
1765 | list_del(&device->scsi_device_list_entry); | |
1766 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); | |
1767 | ||
1768 | /* Allow the device structure to be freed later. */ | |
1769 | device->keep_device = false; | |
1770 | } | |
1771 | ||
3d46a59a DB |
1772 | static inline bool pqi_is_device_added(struct pqi_scsi_dev *device) |
1773 | { | |
1774 | if (device->is_expander_smp_device) | |
1775 | return device->sas_port != NULL; | |
1776 | ||
1777 | return device->sdev != NULL; | |
1778 | } | |
1779 | ||
6c223761 KB |
1780 | static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info, |
1781 | struct pqi_scsi_dev *new_device_list[], unsigned int num_new_devices) | |
1782 | { | |
1783 | int rc; | |
1784 | unsigned int i; | |
1785 | unsigned long flags; | |
1786 | enum pqi_find_result find_result; | |
1787 | struct pqi_scsi_dev *device; | |
1788 | struct pqi_scsi_dev *next; | |
1789 | struct pqi_scsi_dev *matching_device; | |
8a994a04 KB |
1790 | LIST_HEAD(add_list); |
1791 | LIST_HEAD(delete_list); | |
6c223761 KB |
1792 | |
1793 | /* | |
1794 | * The idea here is to do as little work as possible while holding the | |
1795 | * spinlock. That's why we go to great pains to defer anything other | |
1796 | * than updating the internal device list until after we release the | |
1797 | * spinlock. | |
1798 | */ | |
1799 | ||
1800 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
1801 | ||
1802 | /* Assume that all devices in the existing list have gone away. */ | |
1803 | list_for_each_entry(device, &ctrl_info->scsi_device_list, | |
1804 | scsi_device_list_entry) | |
1805 | device->device_gone = true; | |
1806 | ||
1807 | for (i = 0; i < num_new_devices; i++) { | |
1808 | device = new_device_list[i]; | |
1809 | ||
1810 | find_result = pqi_scsi_find_entry(ctrl_info, device, | |
1811 | &matching_device); | |
1812 | ||
1813 | switch (find_result) { | |
1814 | case DEVICE_SAME: | |
1815 | /* | |
1816 | * The newly found device is already in the existing | |
1817 | * device list. | |
1818 | */ | |
1819 | device->new_device = false; | |
1820 | matching_device->device_gone = false; | |
1821 | pqi_scsi_update_device(matching_device, device); | |
1822 | break; | |
1823 | case DEVICE_NOT_FOUND: | |
1824 | /* | |
1825 | * The newly found device is NOT in the existing device | |
1826 | * list. | |
1827 | */ | |
1828 | device->new_device = true; | |
1829 | break; | |
1830 | case DEVICE_CHANGED: | |
1831 | /* | |
1832 | * The original device has gone away and we need to add | |
1833 | * the new device. | |
1834 | */ | |
1835 | device->new_device = true; | |
1836 | break; | |
6c223761 KB |
1837 | } |
1838 | } | |
1839 | ||
1840 | /* Process all devices that have gone away. */ | |
1841 | list_for_each_entry_safe(device, next, &ctrl_info->scsi_device_list, | |
1842 | scsi_device_list_entry) { | |
1843 | if (device->device_gone) { | |
1844 | list_del(&device->scsi_device_list_entry); | |
1845 | list_add_tail(&device->delete_list_entry, &delete_list); | |
1846 | } | |
1847 | } | |
1848 | ||
1849 | /* Process all new devices. */ | |
1850 | for (i = 0; i < num_new_devices; i++) { | |
1851 | device = new_device_list[i]; | |
1852 | if (!device->new_device) | |
1853 | continue; | |
1854 | if (device->volume_offline) | |
1855 | continue; | |
1856 | list_add_tail(&device->scsi_device_list_entry, | |
1857 | &ctrl_info->scsi_device_list); | |
1858 | list_add_tail(&device->add_list_entry, &add_list); | |
1859 | /* To prevent this device structure from being freed later. */ | |
1860 | device->keep_device = true; | |
1861 | } | |
1862 | ||
6c223761 KB |
1863 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); |
1864 | ||
4fd22c13 MR |
1865 | if (pqi_ctrl_in_ofa(ctrl_info)) |
1866 | pqi_ctrl_ofa_done(ctrl_info); | |
1867 | ||
6c223761 KB |
1868 | /* Remove all devices that have gone away. */ |
1869 | list_for_each_entry_safe(device, next, &delete_list, | |
1870 | delete_list_entry) { | |
6c223761 KB |
1871 | if (device->volume_offline) { |
1872 | pqi_dev_info(ctrl_info, "offline", device); | |
1873 | pqi_show_volume_status(ctrl_info, device); | |
1874 | } else { | |
1875 | pqi_dev_info(ctrl_info, "removed", device); | |
1876 | } | |
3d46a59a | 1877 | if (pqi_is_device_added(device)) |
6de783f6 | 1878 | pqi_remove_device(ctrl_info, device); |
6c223761 KB |
1879 | list_del(&device->delete_list_entry); |
1880 | pqi_free_device(device); | |
1881 | } | |
1882 | ||
1883 | /* | |
1884 | * Notify the SCSI ML if the queue depth of any existing device has | |
1885 | * changed. | |
1886 | */ | |
1887 | list_for_each_entry(device, &ctrl_info->scsi_device_list, | |
1888 | scsi_device_list_entry) { | |
1889 | if (device->sdev && device->queue_depth != | |
1890 | device->advertised_queue_depth) { | |
1891 | device->advertised_queue_depth = device->queue_depth; | |
1892 | scsi_change_queue_depth(device->sdev, | |
1893 | device->advertised_queue_depth); | |
1894 | } | |
1895 | } | |
1896 | ||
1897 | /* Expose any new devices. */ | |
1898 | list_for_each_entry_safe(device, next, &add_list, add_list_entry) { | |
3d46a59a | 1899 | if (!pqi_is_device_added(device)) { |
6de783f6 | 1900 | pqi_dev_info(ctrl_info, "added", device); |
6c223761 KB |
1901 | rc = pqi_add_device(ctrl_info, device); |
1902 | if (rc) { | |
1903 | dev_warn(&ctrl_info->pci_dev->dev, | |
1904 | "scsi %d:%d:%d:%d addition failed, device not added\n", | |
1905 | ctrl_info->scsi_host->host_no, | |
1906 | device->bus, device->target, | |
1907 | device->lun); | |
1908 | pqi_fixup_botched_add(ctrl_info, device); | |
6c223761 KB |
1909 | } |
1910 | } | |
6c223761 KB |
1911 | } |
1912 | } | |
1913 | ||
1914 | static bool pqi_is_supported_device(struct pqi_scsi_dev *device) | |
1915 | { | |
3d46a59a DB |
1916 | bool is_supported; |
1917 | ||
1918 | if (device->is_expander_smp_device) | |
1919 | return true; | |
1920 | ||
1921 | is_supported = false; | |
6c223761 KB |
1922 | |
1923 | switch (device->devtype) { | |
1924 | case TYPE_DISK: | |
1925 | case TYPE_ZBC: | |
1926 | case TYPE_TAPE: | |
1927 | case TYPE_MEDIUM_CHANGER: | |
1928 | case TYPE_ENCLOSURE: | |
1929 | is_supported = true; | |
1930 | break; | |
1931 | case TYPE_RAID: | |
1932 | /* | |
1933 | * Only support the HBA controller itself as a RAID | |
1934 | * controller. If it's a RAID controller other than | |
376fb880 KB |
1935 | * the HBA itself (an external RAID controller, for |
1936 | * example), we don't support it. | |
6c223761 KB |
1937 | */ |
1938 | if (pqi_is_hba_lunid(device->scsi3addr)) | |
1939 | is_supported = true; | |
1940 | break; | |
1941 | } | |
1942 | ||
1943 | return is_supported; | |
1944 | } | |
1945 | ||
94086f5b | 1946 | static inline bool pqi_skip_device(u8 *scsi3addr) |
6c223761 | 1947 | { |
94086f5b KB |
1948 | /* Ignore all masked devices. */ |
1949 | if (MASKED_DEVICE(scsi3addr)) | |
6c223761 | 1950 | return true; |
6c223761 KB |
1951 | |
1952 | return false; | |
1953 | } | |
1954 | ||
3d46a59a DB |
1955 | static inline bool pqi_is_device_with_sas_address(struct pqi_scsi_dev *device) |
1956 | { | |
1957 | if (!device->is_physical_device) | |
1958 | return false; | |
1959 | ||
1960 | if (device->is_expander_smp_device) | |
1961 | return true; | |
1962 | ||
1963 | switch (device->devtype) { | |
1964 | case TYPE_DISK: | |
1965 | case TYPE_ZBC: | |
1966 | case TYPE_ENCLOSURE: | |
1967 | return true; | |
1968 | } | |
1969 | ||
1970 | return false; | |
1971 | } | |
1972 | ||
cd128244 DC |
1973 | static inline bool pqi_expose_device(struct pqi_scsi_dev *device) |
1974 | { | |
1975 | return !device->is_physical_device || | |
1976 | !pqi_skip_device(device->scsi3addr); | |
1977 | } | |
1978 | ||
6c223761 KB |
1979 | static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info) |
1980 | { | |
1981 | int i; | |
1982 | int rc; | |
8a994a04 | 1983 | LIST_HEAD(new_device_list_head); |
6c223761 KB |
1984 | struct report_phys_lun_extended *physdev_list = NULL; |
1985 | struct report_log_lun_extended *logdev_list = NULL; | |
1986 | struct report_phys_lun_extended_entry *phys_lun_ext_entry; | |
1987 | struct report_log_lun_extended_entry *log_lun_ext_entry; | |
1988 | struct bmic_identify_physical_device *id_phys = NULL; | |
1989 | u32 num_physicals; | |
1990 | u32 num_logicals; | |
1991 | struct pqi_scsi_dev **new_device_list = NULL; | |
1992 | struct pqi_scsi_dev *device; | |
1993 | struct pqi_scsi_dev *next; | |
1994 | unsigned int num_new_devices; | |
1995 | unsigned int num_valid_devices; | |
1996 | bool is_physical_device; | |
1997 | u8 *scsi3addr; | |
1998 | static char *out_of_memory_msg = | |
6de783f6 | 1999 | "failed to allocate memory, device discovery stopped"; |
6c223761 | 2000 | |
6c223761 KB |
2001 | rc = pqi_get_device_lists(ctrl_info, &physdev_list, &logdev_list); |
2002 | if (rc) | |
2003 | goto out; | |
2004 | ||
2005 | if (physdev_list) | |
2006 | num_physicals = | |
2007 | get_unaligned_be32(&physdev_list->header.list_length) | |
2008 | / sizeof(physdev_list->lun_entries[0]); | |
2009 | else | |
2010 | num_physicals = 0; | |
2011 | ||
2012 | if (logdev_list) | |
2013 | num_logicals = | |
2014 | get_unaligned_be32(&logdev_list->header.list_length) | |
2015 | / sizeof(logdev_list->lun_entries[0]); | |
2016 | else | |
2017 | num_logicals = 0; | |
2018 | ||
2019 | if (num_physicals) { | |
2020 | /* | |
2021 | * We need this buffer for calls to pqi_get_physical_disk_info() | |
2022 | * below. We allocate it here instead of inside | |
2023 | * pqi_get_physical_disk_info() because it's a fairly large | |
2024 | * buffer. | |
2025 | */ | |
2026 | id_phys = kmalloc(sizeof(*id_phys), GFP_KERNEL); | |
2027 | if (!id_phys) { | |
2028 | dev_warn(&ctrl_info->pci_dev->dev, "%s\n", | |
2029 | out_of_memory_msg); | |
2030 | rc = -ENOMEM; | |
2031 | goto out; | |
2032 | } | |
2033 | } | |
2034 | ||
2035 | num_new_devices = num_physicals + num_logicals; | |
2036 | ||
6da2ec56 KC |
2037 | new_device_list = kmalloc_array(num_new_devices, |
2038 | sizeof(*new_device_list), | |
2039 | GFP_KERNEL); | |
6c223761 KB |
2040 | if (!new_device_list) { |
2041 | dev_warn(&ctrl_info->pci_dev->dev, "%s\n", out_of_memory_msg); | |
2042 | rc = -ENOMEM; | |
2043 | goto out; | |
2044 | } | |
2045 | ||
2046 | for (i = 0; i < num_new_devices; i++) { | |
2047 | device = kzalloc(sizeof(*device), GFP_KERNEL); | |
2048 | if (!device) { | |
2049 | dev_warn(&ctrl_info->pci_dev->dev, "%s\n", | |
2050 | out_of_memory_msg); | |
2051 | rc = -ENOMEM; | |
2052 | goto out; | |
2053 | } | |
2054 | list_add_tail(&device->new_device_list_entry, | |
2055 | &new_device_list_head); | |
2056 | } | |
2057 | ||
2058 | device = NULL; | |
2059 | num_valid_devices = 0; | |
2060 | ||
2061 | for (i = 0; i < num_new_devices; i++) { | |
2062 | ||
2063 | if (i < num_physicals) { | |
2064 | is_physical_device = true; | |
2065 | phys_lun_ext_entry = &physdev_list->lun_entries[i]; | |
2066 | log_lun_ext_entry = NULL; | |
2067 | scsi3addr = phys_lun_ext_entry->lunid; | |
2068 | } else { | |
2069 | is_physical_device = false; | |
2070 | phys_lun_ext_entry = NULL; | |
2071 | log_lun_ext_entry = | |
2072 | &logdev_list->lun_entries[i - num_physicals]; | |
2073 | scsi3addr = log_lun_ext_entry->lunid; | |
2074 | } | |
2075 | ||
94086f5b | 2076 | if (is_physical_device && pqi_skip_device(scsi3addr)) |
6c223761 KB |
2077 | continue; |
2078 | ||
2079 | if (device) | |
2080 | device = list_next_entry(device, new_device_list_entry); | |
2081 | else | |
2082 | device = list_first_entry(&new_device_list_head, | |
2083 | struct pqi_scsi_dev, new_device_list_entry); | |
2084 | ||
2085 | memcpy(device->scsi3addr, scsi3addr, sizeof(device->scsi3addr)); | |
2086 | device->is_physical_device = is_physical_device; | |
3d46a59a DB |
2087 | if (is_physical_device) { |
2088 | if (phys_lun_ext_entry->device_type == | |
2089 | SA_EXPANDER_SMP_DEVICE) | |
2090 | device->is_expander_smp_device = true; | |
2091 | } else { | |
bd10cf0b KB |
2092 | device->is_external_raid_device = |
2093 | pqi_is_external_raid_addr(scsi3addr); | |
3d46a59a | 2094 | } |
6c223761 KB |
2095 | |
2096 | /* Gather information about the device. */ | |
2097 | rc = pqi_get_device_info(ctrl_info, device); | |
2098 | if (rc == -ENOMEM) { | |
2099 | dev_warn(&ctrl_info->pci_dev->dev, "%s\n", | |
2100 | out_of_memory_msg); | |
2101 | goto out; | |
2102 | } | |
2103 | if (rc) { | |
6de783f6 KB |
2104 | if (device->is_physical_device) |
2105 | dev_warn(&ctrl_info->pci_dev->dev, | |
2106 | "obtaining device info failed, skipping physical device %016llx\n", | |
2107 | get_unaligned_be64( | |
2108 | &phys_lun_ext_entry->wwid)); | |
2109 | else | |
2110 | dev_warn(&ctrl_info->pci_dev->dev, | |
2111 | "obtaining device info failed, skipping logical device %08x%08x\n", | |
2112 | *((u32 *)&device->scsi3addr), | |
2113 | *((u32 *)&device->scsi3addr[4])); | |
6c223761 KB |
2114 | rc = 0; |
2115 | continue; | |
2116 | } | |
2117 | ||
2118 | if (!pqi_is_supported_device(device)) | |
2119 | continue; | |
2120 | ||
2121 | pqi_assign_bus_target_lun(device); | |
2122 | ||
6c223761 KB |
2123 | if (device->is_physical_device) { |
2124 | device->wwid = phys_lun_ext_entry->wwid; | |
2125 | if ((phys_lun_ext_entry->device_flags & | |
2126 | REPORT_PHYS_LUN_DEV_FLAG_AIO_ENABLED) && | |
3d46a59a | 2127 | phys_lun_ext_entry->aio_handle) { |
6c223761 | 2128 | device->aio_enabled = true; |
3d46a59a DB |
2129 | device->aio_handle = |
2130 | phys_lun_ext_entry->aio_handle; | |
2131 | } | |
2132 | if (device->devtype == TYPE_DISK || | |
2133 | device->devtype == TYPE_ZBC) { | |
2134 | pqi_get_physical_disk_info(ctrl_info, | |
2135 | device, id_phys); | |
2136 | } | |
6c223761 KB |
2137 | } else { |
2138 | memcpy(device->volume_id, log_lun_ext_entry->volume_id, | |
2139 | sizeof(device->volume_id)); | |
2140 | } | |
2141 | ||
3d46a59a DB |
2142 | if (pqi_is_device_with_sas_address(device)) |
2143 | device->sas_address = get_unaligned_be64(&device->wwid); | |
6c223761 KB |
2144 | |
2145 | new_device_list[num_valid_devices++] = device; | |
2146 | } | |
2147 | ||
2148 | pqi_update_device_list(ctrl_info, new_device_list, num_valid_devices); | |
2149 | ||
2150 | out: | |
2151 | list_for_each_entry_safe(device, next, &new_device_list_head, | |
2152 | new_device_list_entry) { | |
2153 | if (device->keep_device) | |
2154 | continue; | |
2155 | list_del(&device->new_device_list_entry); | |
2156 | pqi_free_device(device); | |
2157 | } | |
2158 | ||
2159 | kfree(new_device_list); | |
2160 | kfree(physdev_list); | |
2161 | kfree(logdev_list); | |
2162 | kfree(id_phys); | |
2163 | ||
2164 | return rc; | |
2165 | } | |
2166 | ||
2167 | static void pqi_remove_all_scsi_devices(struct pqi_ctrl_info *ctrl_info) | |
2168 | { | |
2169 | unsigned long flags; | |
2170 | struct pqi_scsi_dev *device; | |
6c223761 | 2171 | |
a37ef745 KB |
2172 | while (1) { |
2173 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
2174 | ||
2175 | device = list_first_entry_or_null(&ctrl_info->scsi_device_list, | |
2176 | struct pqi_scsi_dev, scsi_device_list_entry); | |
2177 | if (device) | |
2178 | list_del(&device->scsi_device_list_entry); | |
2179 | ||
2180 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, | |
2181 | flags); | |
2182 | ||
2183 | if (!device) | |
2184 | break; | |
6c223761 | 2185 | |
3d46a59a | 2186 | if (pqi_is_device_added(device)) |
6c223761 | 2187 | pqi_remove_device(ctrl_info, device); |
6c223761 KB |
2188 | pqi_free_device(device); |
2189 | } | |
6c223761 KB |
2190 | } |
2191 | ||
2192 | static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info) | |
2193 | { | |
2194 | int rc; | |
2195 | ||
2196 | if (pqi_ctrl_offline(ctrl_info)) | |
2197 | return -ENXIO; | |
2198 | ||
2199 | mutex_lock(&ctrl_info->scan_mutex); | |
2200 | ||
2201 | rc = pqi_update_scsi_devices(ctrl_info); | |
2202 | if (rc) | |
5f310425 | 2203 | pqi_schedule_rescan_worker_delayed(ctrl_info); |
6c223761 KB |
2204 | |
2205 | mutex_unlock(&ctrl_info->scan_mutex); | |
2206 | ||
2207 | return rc; | |
2208 | } | |
2209 | ||
2210 | static void pqi_scan_start(struct Scsi_Host *shost) | |
2211 | { | |
4fd22c13 MR |
2212 | struct pqi_ctrl_info *ctrl_info; |
2213 | ||
2214 | ctrl_info = shost_to_hba(shost); | |
2215 | if (pqi_ctrl_in_ofa(ctrl_info)) | |
2216 | return; | |
2217 | ||
2218 | pqi_scan_scsi_devices(ctrl_info); | |
6c223761 KB |
2219 | } |
2220 | ||
2221 | /* Returns TRUE if scan is finished. */ | |
2222 | ||
2223 | static int pqi_scan_finished(struct Scsi_Host *shost, | |
2224 | unsigned long elapsed_time) | |
2225 | { | |
2226 | struct pqi_ctrl_info *ctrl_info; | |
2227 | ||
2228 | ctrl_info = shost_priv(shost); | |
2229 | ||
2230 | return !mutex_is_locked(&ctrl_info->scan_mutex); | |
2231 | } | |
2232 | ||
061ef06a KB |
2233 | static void pqi_wait_until_scan_finished(struct pqi_ctrl_info *ctrl_info) |
2234 | { | |
2235 | mutex_lock(&ctrl_info->scan_mutex); | |
2236 | mutex_unlock(&ctrl_info->scan_mutex); | |
2237 | } | |
2238 | ||
2239 | static void pqi_wait_until_lun_reset_finished(struct pqi_ctrl_info *ctrl_info) | |
2240 | { | |
2241 | mutex_lock(&ctrl_info->lun_reset_mutex); | |
2242 | mutex_unlock(&ctrl_info->lun_reset_mutex); | |
2243 | } | |
2244 | ||
4fd22c13 MR |
2245 | static void pqi_wait_until_ofa_finished(struct pqi_ctrl_info *ctrl_info) |
2246 | { | |
2247 | mutex_lock(&ctrl_info->ofa_mutex); | |
2248 | mutex_unlock(&ctrl_info->ofa_mutex); | |
2249 | } | |
2250 | ||
6c223761 KB |
2251 | static inline void pqi_set_encryption_info( |
2252 | struct pqi_encryption_info *encryption_info, struct raid_map *raid_map, | |
2253 | u64 first_block) | |
2254 | { | |
2255 | u32 volume_blk_size; | |
2256 | ||
2257 | /* | |
2258 | * Set the encryption tweak values based on logical block address. | |
2259 | * If the block size is 512, the tweak value is equal to the LBA. | |
2260 | * For other block sizes, tweak value is (LBA * block size) / 512. | |
2261 | */ | |
2262 | volume_blk_size = get_unaligned_le32(&raid_map->volume_blk_size); | |
2263 | if (volume_blk_size != 512) | |
2264 | first_block = (first_block * volume_blk_size) / 512; | |
2265 | ||
2266 | encryption_info->data_encryption_key_index = | |
2267 | get_unaligned_le16(&raid_map->data_encryption_key_index); | |
2268 | encryption_info->encrypt_tweak_lower = lower_32_bits(first_block); | |
2269 | encryption_info->encrypt_tweak_upper = upper_32_bits(first_block); | |
2270 | } | |
2271 | ||
2272 | /* | |
588a63fe | 2273 | * Attempt to perform RAID bypass mapping for a logical volume I/O. |
6c223761 KB |
2274 | */ |
2275 | ||
2276 | #define PQI_RAID_BYPASS_INELIGIBLE 1 | |
2277 | ||
2278 | static int pqi_raid_bypass_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info, | |
2279 | struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, | |
2280 | struct pqi_queue_group *queue_group) | |
2281 | { | |
2282 | struct raid_map *raid_map; | |
2283 | bool is_write = false; | |
2284 | u32 map_index; | |
2285 | u64 first_block; | |
2286 | u64 last_block; | |
2287 | u32 block_cnt; | |
2288 | u32 blocks_per_row; | |
2289 | u64 first_row; | |
2290 | u64 last_row; | |
2291 | u32 first_row_offset; | |
2292 | u32 last_row_offset; | |
2293 | u32 first_column; | |
2294 | u32 last_column; | |
2295 | u64 r0_first_row; | |
2296 | u64 r0_last_row; | |
2297 | u32 r5or6_blocks_per_row; | |
2298 | u64 r5or6_first_row; | |
2299 | u64 r5or6_last_row; | |
2300 | u32 r5or6_first_row_offset; | |
2301 | u32 r5or6_last_row_offset; | |
2302 | u32 r5or6_first_column; | |
2303 | u32 r5or6_last_column; | |
2304 | u16 data_disks_per_row; | |
2305 | u32 total_disks_per_row; | |
2306 | u16 layout_map_count; | |
2307 | u32 stripesize; | |
2308 | u16 strip_size; | |
2309 | u32 first_group; | |
2310 | u32 last_group; | |
2311 | u32 current_group; | |
2312 | u32 map_row; | |
2313 | u32 aio_handle; | |
2314 | u64 disk_block; | |
2315 | u32 disk_block_cnt; | |
2316 | u8 cdb[16]; | |
2317 | u8 cdb_length; | |
2318 | int offload_to_mirror; | |
2319 | struct pqi_encryption_info *encryption_info_ptr; | |
2320 | struct pqi_encryption_info encryption_info; | |
2321 | #if BITS_PER_LONG == 32 | |
2322 | u64 tmpdiv; | |
2323 | #endif | |
2324 | ||
2325 | /* Check for valid opcode, get LBA and block count. */ | |
2326 | switch (scmd->cmnd[0]) { | |
2327 | case WRITE_6: | |
2328 | is_write = true; | |
2329 | /* fall through */ | |
2330 | case READ_6: | |
e018ef57 B |
2331 | first_block = (u64)(((scmd->cmnd[1] & 0x1f) << 16) | |
2332 | (scmd->cmnd[2] << 8) | scmd->cmnd[3]); | |
6c223761 KB |
2333 | block_cnt = (u32)scmd->cmnd[4]; |
2334 | if (block_cnt == 0) | |
2335 | block_cnt = 256; | |
2336 | break; | |
2337 | case WRITE_10: | |
2338 | is_write = true; | |
2339 | /* fall through */ | |
2340 | case READ_10: | |
2341 | first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]); | |
2342 | block_cnt = (u32)get_unaligned_be16(&scmd->cmnd[7]); | |
2343 | break; | |
2344 | case WRITE_12: | |
2345 | is_write = true; | |
2346 | /* fall through */ | |
2347 | case READ_12: | |
2348 | first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]); | |
2349 | block_cnt = get_unaligned_be32(&scmd->cmnd[6]); | |
2350 | break; | |
2351 | case WRITE_16: | |
2352 | is_write = true; | |
2353 | /* fall through */ | |
2354 | case READ_16: | |
2355 | first_block = get_unaligned_be64(&scmd->cmnd[2]); | |
2356 | block_cnt = get_unaligned_be32(&scmd->cmnd[10]); | |
2357 | break; | |
2358 | default: | |
2359 | /* Process via normal I/O path. */ | |
2360 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2361 | } | |
2362 | ||
2363 | /* Check for write to non-RAID-0. */ | |
2364 | if (is_write && device->raid_level != SA_RAID_0) | |
2365 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2366 | ||
2367 | if (unlikely(block_cnt == 0)) | |
2368 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2369 | ||
2370 | last_block = first_block + block_cnt - 1; | |
2371 | raid_map = device->raid_map; | |
2372 | ||
2373 | /* Check for invalid block or wraparound. */ | |
2374 | if (last_block >= get_unaligned_le64(&raid_map->volume_blk_cnt) || | |
2375 | last_block < first_block) | |
2376 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2377 | ||
2378 | data_disks_per_row = get_unaligned_le16(&raid_map->data_disks_per_row); | |
2379 | strip_size = get_unaligned_le16(&raid_map->strip_size); | |
2380 | layout_map_count = get_unaligned_le16(&raid_map->layout_map_count); | |
2381 | ||
2382 | /* Calculate stripe information for the request. */ | |
2383 | blocks_per_row = data_disks_per_row * strip_size; | |
2384 | #if BITS_PER_LONG == 32 | |
2385 | tmpdiv = first_block; | |
2386 | do_div(tmpdiv, blocks_per_row); | |
2387 | first_row = tmpdiv; | |
2388 | tmpdiv = last_block; | |
2389 | do_div(tmpdiv, blocks_per_row); | |
2390 | last_row = tmpdiv; | |
2391 | first_row_offset = (u32)(first_block - (first_row * blocks_per_row)); | |
2392 | last_row_offset = (u32)(last_block - (last_row * blocks_per_row)); | |
2393 | tmpdiv = first_row_offset; | |
2394 | do_div(tmpdiv, strip_size); | |
2395 | first_column = tmpdiv; | |
2396 | tmpdiv = last_row_offset; | |
2397 | do_div(tmpdiv, strip_size); | |
2398 | last_column = tmpdiv; | |
2399 | #else | |
2400 | first_row = first_block / blocks_per_row; | |
2401 | last_row = last_block / blocks_per_row; | |
2402 | first_row_offset = (u32)(first_block - (first_row * blocks_per_row)); | |
2403 | last_row_offset = (u32)(last_block - (last_row * blocks_per_row)); | |
2404 | first_column = first_row_offset / strip_size; | |
2405 | last_column = last_row_offset / strip_size; | |
2406 | #endif | |
2407 | ||
2408 | /* If this isn't a single row/column then give to the controller. */ | |
2409 | if (first_row != last_row || first_column != last_column) | |
2410 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2411 | ||
2412 | /* Proceeding with driver mapping. */ | |
2413 | total_disks_per_row = data_disks_per_row + | |
2414 | get_unaligned_le16(&raid_map->metadata_disks_per_row); | |
2415 | map_row = ((u32)(first_row >> raid_map->parity_rotation_shift)) % | |
2416 | get_unaligned_le16(&raid_map->row_cnt); | |
2417 | map_index = (map_row * total_disks_per_row) + first_column; | |
2418 | ||
2419 | /* RAID 1 */ | |
2420 | if (device->raid_level == SA_RAID_1) { | |
2421 | if (device->offload_to_mirror) | |
2422 | map_index += data_disks_per_row; | |
2423 | device->offload_to_mirror = !device->offload_to_mirror; | |
2424 | } else if (device->raid_level == SA_RAID_ADM) { | |
2425 | /* RAID ADM */ | |
2426 | /* | |
2427 | * Handles N-way mirrors (R1-ADM) and R10 with # of drives | |
2428 | * divisible by 3. | |
2429 | */ | |
2430 | offload_to_mirror = device->offload_to_mirror; | |
2431 | if (offload_to_mirror == 0) { | |
2432 | /* use physical disk in the first mirrored group. */ | |
2433 | map_index %= data_disks_per_row; | |
2434 | } else { | |
2435 | do { | |
2436 | /* | |
2437 | * Determine mirror group that map_index | |
2438 | * indicates. | |
2439 | */ | |
2440 | current_group = map_index / data_disks_per_row; | |
2441 | ||
2442 | if (offload_to_mirror != current_group) { | |
2443 | if (current_group < | |
2444 | layout_map_count - 1) { | |
2445 | /* | |
2446 | * Select raid index from | |
2447 | * next group. | |
2448 | */ | |
2449 | map_index += data_disks_per_row; | |
2450 | current_group++; | |
2451 | } else { | |
2452 | /* | |
2453 | * Select raid index from first | |
2454 | * group. | |
2455 | */ | |
2456 | map_index %= data_disks_per_row; | |
2457 | current_group = 0; | |
2458 | } | |
2459 | } | |
2460 | } while (offload_to_mirror != current_group); | |
2461 | } | |
2462 | ||
2463 | /* Set mirror group to use next time. */ | |
2464 | offload_to_mirror = | |
2465 | (offload_to_mirror >= layout_map_count - 1) ? | |
2466 | 0 : offload_to_mirror + 1; | |
2467 | WARN_ON(offload_to_mirror >= layout_map_count); | |
2468 | device->offload_to_mirror = offload_to_mirror; | |
2469 | /* | |
2470 | * Avoid direct use of device->offload_to_mirror within this | |
2471 | * function since multiple threads might simultaneously | |
2472 | * increment it beyond the range of device->layout_map_count -1. | |
2473 | */ | |
2474 | } else if ((device->raid_level == SA_RAID_5 || | |
2475 | device->raid_level == SA_RAID_6) && layout_map_count > 1) { | |
2476 | /* RAID 50/60 */ | |
2477 | /* Verify first and last block are in same RAID group */ | |
2478 | r5or6_blocks_per_row = strip_size * data_disks_per_row; | |
2479 | stripesize = r5or6_blocks_per_row * layout_map_count; | |
2480 | #if BITS_PER_LONG == 32 | |
2481 | tmpdiv = first_block; | |
2482 | first_group = do_div(tmpdiv, stripesize); | |
2483 | tmpdiv = first_group; | |
2484 | do_div(tmpdiv, r5or6_blocks_per_row); | |
2485 | first_group = tmpdiv; | |
2486 | tmpdiv = last_block; | |
2487 | last_group = do_div(tmpdiv, stripesize); | |
2488 | tmpdiv = last_group; | |
2489 | do_div(tmpdiv, r5or6_blocks_per_row); | |
2490 | last_group = tmpdiv; | |
2491 | #else | |
2492 | first_group = (first_block % stripesize) / r5or6_blocks_per_row; | |
2493 | last_group = (last_block % stripesize) / r5or6_blocks_per_row; | |
2494 | #endif | |
2495 | if (first_group != last_group) | |
2496 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2497 | ||
2498 | /* Verify request is in a single row of RAID 5/6 */ | |
2499 | #if BITS_PER_LONG == 32 | |
2500 | tmpdiv = first_block; | |
2501 | do_div(tmpdiv, stripesize); | |
2502 | first_row = r5or6_first_row = r0_first_row = tmpdiv; | |
2503 | tmpdiv = last_block; | |
2504 | do_div(tmpdiv, stripesize); | |
2505 | r5or6_last_row = r0_last_row = tmpdiv; | |
2506 | #else | |
2507 | first_row = r5or6_first_row = r0_first_row = | |
2508 | first_block / stripesize; | |
2509 | r5or6_last_row = r0_last_row = last_block / stripesize; | |
2510 | #endif | |
2511 | if (r5or6_first_row != r5or6_last_row) | |
2512 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2513 | ||
2514 | /* Verify request is in a single column */ | |
2515 | #if BITS_PER_LONG == 32 | |
2516 | tmpdiv = first_block; | |
2517 | first_row_offset = do_div(tmpdiv, stripesize); | |
2518 | tmpdiv = first_row_offset; | |
2519 | first_row_offset = (u32)do_div(tmpdiv, r5or6_blocks_per_row); | |
2520 | r5or6_first_row_offset = first_row_offset; | |
2521 | tmpdiv = last_block; | |
2522 | r5or6_last_row_offset = do_div(tmpdiv, stripesize); | |
2523 | tmpdiv = r5or6_last_row_offset; | |
2524 | r5or6_last_row_offset = do_div(tmpdiv, r5or6_blocks_per_row); | |
2525 | tmpdiv = r5or6_first_row_offset; | |
2526 | do_div(tmpdiv, strip_size); | |
2527 | first_column = r5or6_first_column = tmpdiv; | |
2528 | tmpdiv = r5or6_last_row_offset; | |
2529 | do_div(tmpdiv, strip_size); | |
2530 | r5or6_last_column = tmpdiv; | |
2531 | #else | |
2532 | first_row_offset = r5or6_first_row_offset = | |
2533 | (u32)((first_block % stripesize) % | |
2534 | r5or6_blocks_per_row); | |
2535 | ||
2536 | r5or6_last_row_offset = | |
2537 | (u32)((last_block % stripesize) % | |
2538 | r5or6_blocks_per_row); | |
2539 | ||
2540 | first_column = r5or6_first_row_offset / strip_size; | |
2541 | r5or6_first_column = first_column; | |
2542 | r5or6_last_column = r5or6_last_row_offset / strip_size; | |
2543 | #endif | |
2544 | if (r5or6_first_column != r5or6_last_column) | |
2545 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2546 | ||
2547 | /* Request is eligible */ | |
2548 | map_row = | |
2549 | ((u32)(first_row >> raid_map->parity_rotation_shift)) % | |
2550 | get_unaligned_le16(&raid_map->row_cnt); | |
2551 | ||
2552 | map_index = (first_group * | |
2553 | (get_unaligned_le16(&raid_map->row_cnt) * | |
2554 | total_disks_per_row)) + | |
2555 | (map_row * total_disks_per_row) + first_column; | |
2556 | } | |
2557 | ||
6c223761 KB |
2558 | aio_handle = raid_map->disk_data[map_index].aio_handle; |
2559 | disk_block = get_unaligned_le64(&raid_map->disk_starting_blk) + | |
2560 | first_row * strip_size + | |
2561 | (first_row_offset - first_column * strip_size); | |
2562 | disk_block_cnt = block_cnt; | |
2563 | ||
2564 | /* Handle differing logical/physical block sizes. */ | |
2565 | if (raid_map->phys_blk_shift) { | |
2566 | disk_block <<= raid_map->phys_blk_shift; | |
2567 | disk_block_cnt <<= raid_map->phys_blk_shift; | |
2568 | } | |
2569 | ||
2570 | if (unlikely(disk_block_cnt > 0xffff)) | |
2571 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2572 | ||
2573 | /* Build the new CDB for the physical disk I/O. */ | |
2574 | if (disk_block > 0xffffffff) { | |
2575 | cdb[0] = is_write ? WRITE_16 : READ_16; | |
2576 | cdb[1] = 0; | |
2577 | put_unaligned_be64(disk_block, &cdb[2]); | |
2578 | put_unaligned_be32(disk_block_cnt, &cdb[10]); | |
2579 | cdb[14] = 0; | |
2580 | cdb[15] = 0; | |
2581 | cdb_length = 16; | |
2582 | } else { | |
2583 | cdb[0] = is_write ? WRITE_10 : READ_10; | |
2584 | cdb[1] = 0; | |
2585 | put_unaligned_be32((u32)disk_block, &cdb[2]); | |
2586 | cdb[6] = 0; | |
2587 | put_unaligned_be16((u16)disk_block_cnt, &cdb[7]); | |
2588 | cdb[9] = 0; | |
2589 | cdb_length = 10; | |
2590 | } | |
2591 | ||
2592 | if (get_unaligned_le16(&raid_map->flags) & | |
2593 | RAID_MAP_ENCRYPTION_ENABLED) { | |
2594 | pqi_set_encryption_info(&encryption_info, raid_map, | |
2595 | first_block); | |
2596 | encryption_info_ptr = &encryption_info; | |
2597 | } else { | |
2598 | encryption_info_ptr = NULL; | |
2599 | } | |
2600 | ||
2601 | return pqi_aio_submit_io(ctrl_info, scmd, aio_handle, | |
376fb880 | 2602 | cdb, cdb_length, queue_group, encryption_info_ptr, true); |
6c223761 KB |
2603 | } |
2604 | ||
2605 | #define PQI_STATUS_IDLE 0x0 | |
2606 | ||
2607 | #define PQI_CREATE_ADMIN_QUEUE_PAIR 1 | |
2608 | #define PQI_DELETE_ADMIN_QUEUE_PAIR 2 | |
2609 | ||
2610 | #define PQI_DEVICE_STATE_POWER_ON_AND_RESET 0x0 | |
2611 | #define PQI_DEVICE_STATE_STATUS_AVAILABLE 0x1 | |
2612 | #define PQI_DEVICE_STATE_ALL_REGISTERS_READY 0x2 | |
2613 | #define PQI_DEVICE_STATE_ADMIN_QUEUE_PAIR_READY 0x3 | |
2614 | #define PQI_DEVICE_STATE_ERROR 0x4 | |
2615 | ||
2616 | #define PQI_MODE_READY_TIMEOUT_SECS 30 | |
2617 | #define PQI_MODE_READY_POLL_INTERVAL_MSECS 1 | |
2618 | ||
2619 | static int pqi_wait_for_pqi_mode_ready(struct pqi_ctrl_info *ctrl_info) | |
2620 | { | |
2621 | struct pqi_device_registers __iomem *pqi_registers; | |
2622 | unsigned long timeout; | |
2623 | u64 signature; | |
2624 | u8 status; | |
2625 | ||
2626 | pqi_registers = ctrl_info->pqi_registers; | |
4fd22c13 | 2627 | timeout = (PQI_MODE_READY_TIMEOUT_SECS * PQI_HZ) + jiffies; |
6c223761 KB |
2628 | |
2629 | while (1) { | |
2630 | signature = readq(&pqi_registers->signature); | |
2631 | if (memcmp(&signature, PQI_DEVICE_SIGNATURE, | |
2632 | sizeof(signature)) == 0) | |
2633 | break; | |
2634 | if (time_after(jiffies, timeout)) { | |
2635 | dev_err(&ctrl_info->pci_dev->dev, | |
2636 | "timed out waiting for PQI signature\n"); | |
2637 | return -ETIMEDOUT; | |
2638 | } | |
2639 | msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS); | |
2640 | } | |
2641 | ||
2642 | while (1) { | |
2643 | status = readb(&pqi_registers->function_and_status_code); | |
2644 | if (status == PQI_STATUS_IDLE) | |
2645 | break; | |
2646 | if (time_after(jiffies, timeout)) { | |
2647 | dev_err(&ctrl_info->pci_dev->dev, | |
2648 | "timed out waiting for PQI IDLE\n"); | |
2649 | return -ETIMEDOUT; | |
2650 | } | |
2651 | msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS); | |
2652 | } | |
2653 | ||
2654 | while (1) { | |
2655 | if (readl(&pqi_registers->device_status) == | |
2656 | PQI_DEVICE_STATE_ALL_REGISTERS_READY) | |
2657 | break; | |
2658 | if (time_after(jiffies, timeout)) { | |
2659 | dev_err(&ctrl_info->pci_dev->dev, | |
2660 | "timed out waiting for PQI all registers ready\n"); | |
2661 | return -ETIMEDOUT; | |
2662 | } | |
2663 | msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS); | |
2664 | } | |
2665 | ||
2666 | return 0; | |
2667 | } | |
2668 | ||
2669 | static inline void pqi_aio_path_disabled(struct pqi_io_request *io_request) | |
2670 | { | |
2671 | struct pqi_scsi_dev *device; | |
2672 | ||
2673 | device = io_request->scmd->device->hostdata; | |
588a63fe | 2674 | device->raid_bypass_enabled = false; |
376fb880 | 2675 | device->aio_enabled = false; |
6c223761 KB |
2676 | } |
2677 | ||
d87d5474 | 2678 | static inline void pqi_take_device_offline(struct scsi_device *sdev, char *path) |
6c223761 KB |
2679 | { |
2680 | struct pqi_ctrl_info *ctrl_info; | |
e58081a7 | 2681 | struct pqi_scsi_dev *device; |
6c223761 | 2682 | |
03b288cf KB |
2683 | device = sdev->hostdata; |
2684 | if (device->device_offline) | |
2685 | return; | |
2686 | ||
2687 | device->device_offline = true; | |
03b288cf KB |
2688 | ctrl_info = shost_to_hba(sdev->host); |
2689 | pqi_schedule_rescan_worker(ctrl_info); | |
a9a68101 | 2690 | dev_err(&ctrl_info->pci_dev->dev, "re-scanning %s scsi %d:%d:%d:%d\n", |
03b288cf KB |
2691 | path, ctrl_info->scsi_host->host_no, device->bus, |
2692 | device->target, device->lun); | |
6c223761 KB |
2693 | } |
2694 | ||
2695 | static void pqi_process_raid_io_error(struct pqi_io_request *io_request) | |
2696 | { | |
2697 | u8 scsi_status; | |
2698 | u8 host_byte; | |
2699 | struct scsi_cmnd *scmd; | |
2700 | struct pqi_raid_error_info *error_info; | |
2701 | size_t sense_data_length; | |
2702 | int residual_count; | |
2703 | int xfer_count; | |
2704 | struct scsi_sense_hdr sshdr; | |
2705 | ||
2706 | scmd = io_request->scmd; | |
2707 | if (!scmd) | |
2708 | return; | |
2709 | ||
2710 | error_info = io_request->error_info; | |
2711 | scsi_status = error_info->status; | |
2712 | host_byte = DID_OK; | |
2713 | ||
f5b63206 KB |
2714 | switch (error_info->data_out_result) { |
2715 | case PQI_DATA_IN_OUT_GOOD: | |
2716 | break; | |
2717 | case PQI_DATA_IN_OUT_UNDERFLOW: | |
6c223761 KB |
2718 | xfer_count = |
2719 | get_unaligned_le32(&error_info->data_out_transferred); | |
2720 | residual_count = scsi_bufflen(scmd) - xfer_count; | |
2721 | scsi_set_resid(scmd, residual_count); | |
2722 | if (xfer_count < scmd->underflow) | |
2723 | host_byte = DID_SOFT_ERROR; | |
f5b63206 KB |
2724 | break; |
2725 | case PQI_DATA_IN_OUT_UNSOLICITED_ABORT: | |
2726 | case PQI_DATA_IN_OUT_ABORTED: | |
2727 | host_byte = DID_ABORT; | |
2728 | break; | |
2729 | case PQI_DATA_IN_OUT_TIMEOUT: | |
2730 | host_byte = DID_TIME_OUT; | |
2731 | break; | |
2732 | case PQI_DATA_IN_OUT_BUFFER_OVERFLOW: | |
2733 | case PQI_DATA_IN_OUT_PROTOCOL_ERROR: | |
2734 | case PQI_DATA_IN_OUT_BUFFER_ERROR: | |
2735 | case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA: | |
2736 | case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE: | |
2737 | case PQI_DATA_IN_OUT_ERROR: | |
2738 | case PQI_DATA_IN_OUT_HARDWARE_ERROR: | |
2739 | case PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR: | |
2740 | case PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT: | |
2741 | case PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED: | |
2742 | case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED: | |
2743 | case PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED: | |
2744 | case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST: | |
2745 | case PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION: | |
2746 | case PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED: | |
2747 | case PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ: | |
2748 | default: | |
2749 | host_byte = DID_ERROR; | |
2750 | break; | |
6c223761 KB |
2751 | } |
2752 | ||
2753 | sense_data_length = get_unaligned_le16(&error_info->sense_data_length); | |
2754 | if (sense_data_length == 0) | |
2755 | sense_data_length = | |
2756 | get_unaligned_le16(&error_info->response_data_length); | |
2757 | if (sense_data_length) { | |
2758 | if (sense_data_length > sizeof(error_info->data)) | |
2759 | sense_data_length = sizeof(error_info->data); | |
2760 | ||
2761 | if (scsi_status == SAM_STAT_CHECK_CONDITION && | |
2762 | scsi_normalize_sense(error_info->data, | |
2763 | sense_data_length, &sshdr) && | |
2764 | sshdr.sense_key == HARDWARE_ERROR && | |
2765 | sshdr.asc == 0x3e && | |
2766 | sshdr.ascq == 0x1) { | |
d87d5474 | 2767 | pqi_take_device_offline(scmd->device, "RAID"); |
6c223761 KB |
2768 | host_byte = DID_NO_CONNECT; |
2769 | } | |
2770 | ||
2771 | if (sense_data_length > SCSI_SENSE_BUFFERSIZE) | |
2772 | sense_data_length = SCSI_SENSE_BUFFERSIZE; | |
2773 | memcpy(scmd->sense_buffer, error_info->data, | |
2774 | sense_data_length); | |
2775 | } | |
2776 | ||
2777 | scmd->result = scsi_status; | |
2778 | set_host_byte(scmd, host_byte); | |
2779 | } | |
2780 | ||
2781 | static void pqi_process_aio_io_error(struct pqi_io_request *io_request) | |
2782 | { | |
2783 | u8 scsi_status; | |
2784 | u8 host_byte; | |
2785 | struct scsi_cmnd *scmd; | |
2786 | struct pqi_aio_error_info *error_info; | |
2787 | size_t sense_data_length; | |
2788 | int residual_count; | |
2789 | int xfer_count; | |
2790 | bool device_offline; | |
2791 | ||
2792 | scmd = io_request->scmd; | |
2793 | error_info = io_request->error_info; | |
2794 | host_byte = DID_OK; | |
2795 | sense_data_length = 0; | |
2796 | device_offline = false; | |
2797 | ||
2798 | switch (error_info->service_response) { | |
2799 | case PQI_AIO_SERV_RESPONSE_COMPLETE: | |
2800 | scsi_status = error_info->status; | |
2801 | break; | |
2802 | case PQI_AIO_SERV_RESPONSE_FAILURE: | |
2803 | switch (error_info->status) { | |
2804 | case PQI_AIO_STATUS_IO_ABORTED: | |
2805 | scsi_status = SAM_STAT_TASK_ABORTED; | |
2806 | break; | |
2807 | case PQI_AIO_STATUS_UNDERRUN: | |
2808 | scsi_status = SAM_STAT_GOOD; | |
2809 | residual_count = get_unaligned_le32( | |
2810 | &error_info->residual_count); | |
2811 | scsi_set_resid(scmd, residual_count); | |
2812 | xfer_count = scsi_bufflen(scmd) - residual_count; | |
2813 | if (xfer_count < scmd->underflow) | |
2814 | host_byte = DID_SOFT_ERROR; | |
2815 | break; | |
2816 | case PQI_AIO_STATUS_OVERRUN: | |
2817 | scsi_status = SAM_STAT_GOOD; | |
2818 | break; | |
2819 | case PQI_AIO_STATUS_AIO_PATH_DISABLED: | |
2820 | pqi_aio_path_disabled(io_request); | |
2821 | scsi_status = SAM_STAT_GOOD; | |
2822 | io_request->status = -EAGAIN; | |
2823 | break; | |
2824 | case PQI_AIO_STATUS_NO_PATH_TO_DEVICE: | |
2825 | case PQI_AIO_STATUS_INVALID_DEVICE: | |
376fb880 KB |
2826 | if (!io_request->raid_bypass) { |
2827 | device_offline = true; | |
2828 | pqi_take_device_offline(scmd->device, "AIO"); | |
2829 | host_byte = DID_NO_CONNECT; | |
2830 | } | |
6c223761 KB |
2831 | scsi_status = SAM_STAT_CHECK_CONDITION; |
2832 | break; | |
2833 | case PQI_AIO_STATUS_IO_ERROR: | |
2834 | default: | |
2835 | scsi_status = SAM_STAT_CHECK_CONDITION; | |
2836 | break; | |
2837 | } | |
2838 | break; | |
2839 | case PQI_AIO_SERV_RESPONSE_TMF_COMPLETE: | |
2840 | case PQI_AIO_SERV_RESPONSE_TMF_SUCCEEDED: | |
2841 | scsi_status = SAM_STAT_GOOD; | |
2842 | break; | |
2843 | case PQI_AIO_SERV_RESPONSE_TMF_REJECTED: | |
2844 | case PQI_AIO_SERV_RESPONSE_TMF_INCORRECT_LUN: | |
2845 | default: | |
2846 | scsi_status = SAM_STAT_CHECK_CONDITION; | |
2847 | break; | |
2848 | } | |
2849 | ||
2850 | if (error_info->data_present) { | |
2851 | sense_data_length = | |
2852 | get_unaligned_le16(&error_info->data_length); | |
2853 | if (sense_data_length) { | |
2854 | if (sense_data_length > sizeof(error_info->data)) | |
2855 | sense_data_length = sizeof(error_info->data); | |
2856 | if (sense_data_length > SCSI_SENSE_BUFFERSIZE) | |
2857 | sense_data_length = SCSI_SENSE_BUFFERSIZE; | |
2858 | memcpy(scmd->sense_buffer, error_info->data, | |
2859 | sense_data_length); | |
2860 | } | |
2861 | } | |
2862 | ||
2863 | if (device_offline && sense_data_length == 0) | |
2864 | scsi_build_sense_buffer(0, scmd->sense_buffer, HARDWARE_ERROR, | |
2865 | 0x3e, 0x1); | |
2866 | ||
2867 | scmd->result = scsi_status; | |
2868 | set_host_byte(scmd, host_byte); | |
2869 | } | |
2870 | ||
2871 | static void pqi_process_io_error(unsigned int iu_type, | |
2872 | struct pqi_io_request *io_request) | |
2873 | { | |
2874 | switch (iu_type) { | |
2875 | case PQI_RESPONSE_IU_RAID_PATH_IO_ERROR: | |
2876 | pqi_process_raid_io_error(io_request); | |
2877 | break; | |
2878 | case PQI_RESPONSE_IU_AIO_PATH_IO_ERROR: | |
2879 | pqi_process_aio_io_error(io_request); | |
2880 | break; | |
2881 | } | |
2882 | } | |
2883 | ||
2884 | static int pqi_interpret_task_management_response( | |
2885 | struct pqi_task_management_response *response) | |
2886 | { | |
2887 | int rc; | |
2888 | ||
2889 | switch (response->response_code) { | |
b17f0486 KB |
2890 | case SOP_TMF_COMPLETE: |
2891 | case SOP_TMF_FUNCTION_SUCCEEDED: | |
6c223761 KB |
2892 | rc = 0; |
2893 | break; | |
3406384b MR |
2894 | case SOP_TMF_REJECTED: |
2895 | rc = -EAGAIN; | |
2896 | break; | |
6c223761 KB |
2897 | default: |
2898 | rc = -EIO; | |
2899 | break; | |
2900 | } | |
2901 | ||
2902 | return rc; | |
2903 | } | |
2904 | ||
2905 | static unsigned int pqi_process_io_intr(struct pqi_ctrl_info *ctrl_info, | |
2906 | struct pqi_queue_group *queue_group) | |
2907 | { | |
2908 | unsigned int num_responses; | |
2909 | pqi_index_t oq_pi; | |
2910 | pqi_index_t oq_ci; | |
2911 | struct pqi_io_request *io_request; | |
2912 | struct pqi_io_response *response; | |
2913 | u16 request_id; | |
2914 | ||
2915 | num_responses = 0; | |
2916 | oq_ci = queue_group->oq_ci_copy; | |
2917 | ||
2918 | while (1) { | |
dac12fbc | 2919 | oq_pi = readl(queue_group->oq_pi); |
6c223761 KB |
2920 | if (oq_pi == oq_ci) |
2921 | break; | |
2922 | ||
2923 | num_responses++; | |
2924 | response = queue_group->oq_element_array + | |
2925 | (oq_ci * PQI_OPERATIONAL_OQ_ELEMENT_LENGTH); | |
2926 | ||
2927 | request_id = get_unaligned_le16(&response->request_id); | |
2928 | WARN_ON(request_id >= ctrl_info->max_io_slots); | |
2929 | ||
2930 | io_request = &ctrl_info->io_request_pool[request_id]; | |
2931 | WARN_ON(atomic_read(&io_request->refcount) == 0); | |
2932 | ||
2933 | switch (response->header.iu_type) { | |
2934 | case PQI_RESPONSE_IU_RAID_PATH_IO_SUCCESS: | |
2935 | case PQI_RESPONSE_IU_AIO_PATH_IO_SUCCESS: | |
2ba55c98 KB |
2936 | if (io_request->scmd) |
2937 | io_request->scmd->result = 0; | |
2938 | /* fall through */ | |
6c223761 KB |
2939 | case PQI_RESPONSE_IU_GENERAL_MANAGEMENT: |
2940 | break; | |
b212c251 KB |
2941 | case PQI_RESPONSE_IU_VENDOR_GENERAL: |
2942 | io_request->status = | |
2943 | get_unaligned_le16( | |
2944 | &((struct pqi_vendor_general_response *) | |
2945 | response)->status); | |
2946 | break; | |
6c223761 KB |
2947 | case PQI_RESPONSE_IU_TASK_MANAGEMENT: |
2948 | io_request->status = | |
2949 | pqi_interpret_task_management_response( | |
2950 | (void *)response); | |
2951 | break; | |
2952 | case PQI_RESPONSE_IU_AIO_PATH_DISABLED: | |
2953 | pqi_aio_path_disabled(io_request); | |
2954 | io_request->status = -EAGAIN; | |
2955 | break; | |
2956 | case PQI_RESPONSE_IU_RAID_PATH_IO_ERROR: | |
2957 | case PQI_RESPONSE_IU_AIO_PATH_IO_ERROR: | |
2958 | io_request->error_info = ctrl_info->error_buffer + | |
2959 | (get_unaligned_le16(&response->error_index) * | |
2960 | PQI_ERROR_BUFFER_ELEMENT_LENGTH); | |
2961 | pqi_process_io_error(response->header.iu_type, | |
2962 | io_request); | |
2963 | break; | |
2964 | default: | |
2965 | dev_err(&ctrl_info->pci_dev->dev, | |
2966 | "unexpected IU type: 0x%x\n", | |
2967 | response->header.iu_type); | |
6c223761 KB |
2968 | break; |
2969 | } | |
2970 | ||
2971 | io_request->io_complete_callback(io_request, | |
2972 | io_request->context); | |
2973 | ||
2974 | /* | |
2975 | * Note that the I/O request structure CANNOT BE TOUCHED after | |
2976 | * returning from the I/O completion callback! | |
2977 | */ | |
2978 | ||
2979 | oq_ci = (oq_ci + 1) % ctrl_info->num_elements_per_oq; | |
2980 | } | |
2981 | ||
2982 | if (num_responses) { | |
2983 | queue_group->oq_ci_copy = oq_ci; | |
2984 | writel(oq_ci, queue_group->oq_ci); | |
2985 | } | |
2986 | ||
2987 | return num_responses; | |
2988 | } | |
2989 | ||
2990 | static inline unsigned int pqi_num_elements_free(unsigned int pi, | |
df7a1fcf | 2991 | unsigned int ci, unsigned int elements_in_queue) |
6c223761 KB |
2992 | { |
2993 | unsigned int num_elements_used; | |
2994 | ||
2995 | if (pi >= ci) | |
2996 | num_elements_used = pi - ci; | |
2997 | else | |
2998 | num_elements_used = elements_in_queue - ci + pi; | |
2999 | ||
3000 | return elements_in_queue - num_elements_used - 1; | |
3001 | } | |
3002 | ||
98f87667 | 3003 | static void pqi_send_event_ack(struct pqi_ctrl_info *ctrl_info, |
6c223761 KB |
3004 | struct pqi_event_acknowledge_request *iu, size_t iu_length) |
3005 | { | |
3006 | pqi_index_t iq_pi; | |
3007 | pqi_index_t iq_ci; | |
3008 | unsigned long flags; | |
3009 | void *next_element; | |
6c223761 KB |
3010 | struct pqi_queue_group *queue_group; |
3011 | ||
3012 | queue_group = &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP]; | |
3013 | put_unaligned_le16(queue_group->oq_id, &iu->header.response_queue_id); | |
3014 | ||
6c223761 KB |
3015 | while (1) { |
3016 | spin_lock_irqsave(&queue_group->submit_lock[RAID_PATH], flags); | |
3017 | ||
3018 | iq_pi = queue_group->iq_pi_copy[RAID_PATH]; | |
dac12fbc | 3019 | iq_ci = readl(queue_group->iq_ci[RAID_PATH]); |
6c223761 KB |
3020 | |
3021 | if (pqi_num_elements_free(iq_pi, iq_ci, | |
3022 | ctrl_info->num_elements_per_iq)) | |
3023 | break; | |
3024 | ||
3025 | spin_unlock_irqrestore( | |
3026 | &queue_group->submit_lock[RAID_PATH], flags); | |
3027 | ||
98f87667 | 3028 | if (pqi_ctrl_offline(ctrl_info)) |
6c223761 | 3029 | return; |
6c223761 KB |
3030 | } |
3031 | ||
3032 | next_element = queue_group->iq_element_array[RAID_PATH] + | |
3033 | (iq_pi * PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); | |
3034 | ||
3035 | memcpy(next_element, iu, iu_length); | |
3036 | ||
3037 | iq_pi = (iq_pi + 1) % ctrl_info->num_elements_per_iq; | |
6c223761 KB |
3038 | queue_group->iq_pi_copy[RAID_PATH] = iq_pi; |
3039 | ||
3040 | /* | |
3041 | * This write notifies the controller that an IU is available to be | |
3042 | * processed. | |
3043 | */ | |
3044 | writel(iq_pi, queue_group->iq_pi[RAID_PATH]); | |
3045 | ||
3046 | spin_unlock_irqrestore(&queue_group->submit_lock[RAID_PATH], flags); | |
6c223761 KB |
3047 | } |
3048 | ||
3049 | static void pqi_acknowledge_event(struct pqi_ctrl_info *ctrl_info, | |
3050 | struct pqi_event *event) | |
3051 | { | |
3052 | struct pqi_event_acknowledge_request request; | |
3053 | ||
3054 | memset(&request, 0, sizeof(request)); | |
3055 | ||
3056 | request.header.iu_type = PQI_REQUEST_IU_ACKNOWLEDGE_VENDOR_EVENT; | |
3057 | put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH, | |
3058 | &request.header.iu_length); | |
3059 | request.event_type = event->event_type; | |
3060 | request.event_id = event->event_id; | |
3061 | request.additional_event_id = event->additional_event_id; | |
3062 | ||
98f87667 | 3063 | pqi_send_event_ack(ctrl_info, &request, sizeof(request)); |
6c223761 KB |
3064 | } |
3065 | ||
4fd22c13 MR |
3066 | #define PQI_SOFT_RESET_STATUS_TIMEOUT_SECS 30 |
3067 | #define PQI_SOFT_RESET_STATUS_POLL_INTERVAL_SECS 1 | |
3068 | ||
3069 | static enum pqi_soft_reset_status pqi_poll_for_soft_reset_status( | |
3070 | struct pqi_ctrl_info *ctrl_info) | |
6c223761 | 3071 | { |
4fd22c13 MR |
3072 | unsigned long timeout; |
3073 | u8 status; | |
6c223761 | 3074 | |
4fd22c13 | 3075 | timeout = (PQI_SOFT_RESET_STATUS_TIMEOUT_SECS * PQI_HZ) + jiffies; |
6c223761 | 3076 | |
4fd22c13 MR |
3077 | while (1) { |
3078 | status = pqi_read_soft_reset_status(ctrl_info); | |
3079 | if (status & PQI_SOFT_RESET_INITIATE) | |
3080 | return RESET_INITIATE_DRIVER; | |
3081 | ||
3082 | if (status & PQI_SOFT_RESET_ABORT) | |
3083 | return RESET_ABORT; | |
3084 | ||
3085 | if (time_after(jiffies, timeout)) { | |
3086 | dev_err(&ctrl_info->pci_dev->dev, | |
3087 | "timed out waiting for soft reset status\n"); | |
3088 | return RESET_TIMEDOUT; | |
3089 | } | |
3090 | ||
3091 | if (!sis_is_firmware_running(ctrl_info)) | |
3092 | return RESET_NORESPONSE; | |
3093 | ||
3094 | ssleep(PQI_SOFT_RESET_STATUS_POLL_INTERVAL_SECS); | |
3095 | } | |
3096 | } | |
3097 | ||
3098 | static void pqi_process_soft_reset(struct pqi_ctrl_info *ctrl_info, | |
3099 | enum pqi_soft_reset_status reset_status) | |
3100 | { | |
3101 | int rc; | |
3102 | ||
3103 | switch (reset_status) { | |
3104 | case RESET_INITIATE_DRIVER: | |
3105 | /* fall through */ | |
3106 | case RESET_TIMEDOUT: | |
3107 | dev_info(&ctrl_info->pci_dev->dev, | |
3108 | "resetting controller %u\n", ctrl_info->ctrl_id); | |
3109 | sis_soft_reset(ctrl_info); | |
3110 | /* fall through */ | |
3111 | case RESET_INITIATE_FIRMWARE: | |
3112 | rc = pqi_ofa_ctrl_restart(ctrl_info); | |
3113 | pqi_ofa_free_host_buffer(ctrl_info); | |
3114 | dev_info(&ctrl_info->pci_dev->dev, | |
3115 | "Online Firmware Activation for controller %u: %s\n", | |
3116 | ctrl_info->ctrl_id, rc == 0 ? "SUCCESS" : "FAILED"); | |
3117 | break; | |
3118 | case RESET_ABORT: | |
3119 | pqi_ofa_ctrl_unquiesce(ctrl_info); | |
3120 | dev_info(&ctrl_info->pci_dev->dev, | |
3121 | "Online Firmware Activation for controller %u: %s\n", | |
3122 | ctrl_info->ctrl_id, "ABORTED"); | |
3123 | break; | |
3124 | case RESET_NORESPONSE: | |
3125 | pqi_ofa_free_host_buffer(ctrl_info); | |
3126 | pqi_take_ctrl_offline(ctrl_info); | |
3127 | break; | |
3128 | } | |
3129 | } | |
3130 | ||
3131 | static void pqi_ofa_process_event(struct pqi_ctrl_info *ctrl_info, | |
3132 | struct pqi_event *event) | |
3133 | { | |
3134 | u16 event_id; | |
3135 | enum pqi_soft_reset_status status; | |
3136 | ||
3137 | event_id = get_unaligned_le16(&event->event_id); | |
3138 | ||
3139 | mutex_lock(&ctrl_info->ofa_mutex); | |
3140 | ||
3141 | if (event_id == PQI_EVENT_OFA_QUIESCE) { | |
3142 | dev_info(&ctrl_info->pci_dev->dev, | |
3143 | "Received Online Firmware Activation quiesce event for controller %u\n", | |
3144 | ctrl_info->ctrl_id); | |
3145 | pqi_ofa_ctrl_quiesce(ctrl_info); | |
3146 | pqi_acknowledge_event(ctrl_info, event); | |
3147 | if (ctrl_info->soft_reset_handshake_supported) { | |
3148 | status = pqi_poll_for_soft_reset_status(ctrl_info); | |
3149 | pqi_process_soft_reset(ctrl_info, status); | |
3150 | } else { | |
3151 | pqi_process_soft_reset(ctrl_info, | |
3152 | RESET_INITIATE_FIRMWARE); | |
3153 | } | |
3154 | ||
3155 | } else if (event_id == PQI_EVENT_OFA_MEMORY_ALLOCATION) { | |
3156 | pqi_acknowledge_event(ctrl_info, event); | |
3157 | pqi_ofa_setup_host_buffer(ctrl_info, | |
3158 | le32_to_cpu(event->ofa_bytes_requested)); | |
3159 | pqi_ofa_host_memory_update(ctrl_info); | |
3160 | } else if (event_id == PQI_EVENT_OFA_CANCELLED) { | |
3161 | pqi_ofa_free_host_buffer(ctrl_info); | |
3162 | pqi_acknowledge_event(ctrl_info, event); | |
3163 | dev_info(&ctrl_info->pci_dev->dev, | |
3164 | "Online Firmware Activation(%u) cancel reason : %u\n", | |
3165 | ctrl_info->ctrl_id, event->ofa_cancel_reason); | |
3166 | } | |
3167 | ||
3168 | mutex_unlock(&ctrl_info->ofa_mutex); | |
3169 | } | |
3170 | ||
6c223761 KB |
3171 | static void pqi_event_worker(struct work_struct *work) |
3172 | { | |
3173 | unsigned int i; | |
3174 | struct pqi_ctrl_info *ctrl_info; | |
6a50d6ad | 3175 | struct pqi_event *event; |
6c223761 KB |
3176 | |
3177 | ctrl_info = container_of(work, struct pqi_ctrl_info, event_work); | |
3178 | ||
7561a7e4 KB |
3179 | pqi_ctrl_busy(ctrl_info); |
3180 | pqi_wait_if_ctrl_blocked(ctrl_info, NO_TIMEOUT); | |
5f310425 KB |
3181 | if (pqi_ctrl_offline(ctrl_info)) |
3182 | goto out; | |
3183 | ||
3184 | pqi_schedule_rescan_worker_delayed(ctrl_info); | |
7561a7e4 | 3185 | |
6a50d6ad | 3186 | event = ctrl_info->events; |
6c223761 | 3187 | for (i = 0; i < PQI_NUM_SUPPORTED_EVENTS; i++) { |
6a50d6ad KB |
3188 | if (event->pending) { |
3189 | event->pending = false; | |
4fd22c13 MR |
3190 | if (event->event_type == PQI_EVENT_TYPE_OFA) { |
3191 | pqi_ctrl_unbusy(ctrl_info); | |
3192 | pqi_ofa_process_event(ctrl_info, event); | |
3193 | return; | |
3194 | } | |
6a50d6ad | 3195 | pqi_acknowledge_event(ctrl_info, event); |
6c223761 | 3196 | } |
6a50d6ad | 3197 | event++; |
6c223761 KB |
3198 | } |
3199 | ||
5f310425 | 3200 | out: |
7561a7e4 | 3201 | pqi_ctrl_unbusy(ctrl_info); |
6c223761 KB |
3202 | } |
3203 | ||
4fd22c13 | 3204 | #define PQI_HEARTBEAT_TIMER_INTERVAL (10 * PQI_HZ) |
6c223761 | 3205 | |
74a0f573 | 3206 | static void pqi_heartbeat_timer_handler(struct timer_list *t) |
6c223761 KB |
3207 | { |
3208 | int num_interrupts; | |
98f87667 | 3209 | u32 heartbeat_count; |
74a0f573 KC |
3210 | struct pqi_ctrl_info *ctrl_info = from_timer(ctrl_info, t, |
3211 | heartbeat_timer); | |
6c223761 | 3212 | |
98f87667 KB |
3213 | pqi_check_ctrl_health(ctrl_info); |
3214 | if (pqi_ctrl_offline(ctrl_info)) | |
061ef06a KB |
3215 | return; |
3216 | ||
6c223761 | 3217 | num_interrupts = atomic_read(&ctrl_info->num_interrupts); |
98f87667 | 3218 | heartbeat_count = pqi_read_heartbeat_counter(ctrl_info); |
6c223761 KB |
3219 | |
3220 | if (num_interrupts == ctrl_info->previous_num_interrupts) { | |
98f87667 KB |
3221 | if (heartbeat_count == ctrl_info->previous_heartbeat_count) { |
3222 | dev_err(&ctrl_info->pci_dev->dev, | |
3223 | "no heartbeat detected - last heartbeat count: %u\n", | |
3224 | heartbeat_count); | |
6c223761 KB |
3225 | pqi_take_ctrl_offline(ctrl_info); |
3226 | return; | |
3227 | } | |
6c223761 | 3228 | } else { |
98f87667 | 3229 | ctrl_info->previous_num_interrupts = num_interrupts; |
6c223761 KB |
3230 | } |
3231 | ||
98f87667 | 3232 | ctrl_info->previous_heartbeat_count = heartbeat_count; |
6c223761 KB |
3233 | mod_timer(&ctrl_info->heartbeat_timer, |
3234 | jiffies + PQI_HEARTBEAT_TIMER_INTERVAL); | |
3235 | } | |
3236 | ||
3237 | static void pqi_start_heartbeat_timer(struct pqi_ctrl_info *ctrl_info) | |
3238 | { | |
98f87667 KB |
3239 | if (!ctrl_info->heartbeat_counter) |
3240 | return; | |
3241 | ||
6c223761 KB |
3242 | ctrl_info->previous_num_interrupts = |
3243 | atomic_read(&ctrl_info->num_interrupts); | |
98f87667 KB |
3244 | ctrl_info->previous_heartbeat_count = |
3245 | pqi_read_heartbeat_counter(ctrl_info); | |
6c223761 | 3246 | |
6c223761 KB |
3247 | ctrl_info->heartbeat_timer.expires = |
3248 | jiffies + PQI_HEARTBEAT_TIMER_INTERVAL; | |
061ef06a | 3249 | add_timer(&ctrl_info->heartbeat_timer); |
6c223761 KB |
3250 | } |
3251 | ||
3252 | static inline void pqi_stop_heartbeat_timer(struct pqi_ctrl_info *ctrl_info) | |
3253 | { | |
98f87667 | 3254 | del_timer_sync(&ctrl_info->heartbeat_timer); |
6c223761 KB |
3255 | } |
3256 | ||
6a50d6ad | 3257 | static inline int pqi_event_type_to_event_index(unsigned int event_type) |
6c223761 KB |
3258 | { |
3259 | int index; | |
3260 | ||
6a50d6ad KB |
3261 | for (index = 0; index < ARRAY_SIZE(pqi_supported_event_types); index++) |
3262 | if (event_type == pqi_supported_event_types[index]) | |
3263 | return index; | |
6c223761 | 3264 | |
6a50d6ad KB |
3265 | return -1; |
3266 | } | |
3267 | ||
3268 | static inline bool pqi_is_supported_event(unsigned int event_type) | |
3269 | { | |
3270 | return pqi_event_type_to_event_index(event_type) != -1; | |
6c223761 KB |
3271 | } |
3272 | ||
4fd22c13 MR |
3273 | static void pqi_ofa_capture_event_payload(struct pqi_event *event, |
3274 | struct pqi_event_response *response) | |
3275 | { | |
3276 | u16 event_id; | |
3277 | ||
3278 | event_id = get_unaligned_le16(&event->event_id); | |
3279 | ||
3280 | if (event->event_type == PQI_EVENT_TYPE_OFA) { | |
3281 | if (event_id == PQI_EVENT_OFA_MEMORY_ALLOCATION) { | |
3282 | event->ofa_bytes_requested = | |
3283 | response->data.ofa_memory_allocation.bytes_requested; | |
3284 | } else if (event_id == PQI_EVENT_OFA_CANCELLED) { | |
3285 | event->ofa_cancel_reason = | |
3286 | response->data.ofa_cancelled.reason; | |
3287 | } | |
3288 | } | |
3289 | } | |
3290 | ||
6c223761 KB |
3291 | static unsigned int pqi_process_event_intr(struct pqi_ctrl_info *ctrl_info) |
3292 | { | |
3293 | unsigned int num_events; | |
3294 | pqi_index_t oq_pi; | |
3295 | pqi_index_t oq_ci; | |
3296 | struct pqi_event_queue *event_queue; | |
3297 | struct pqi_event_response *response; | |
6a50d6ad | 3298 | struct pqi_event *event; |
6c223761 KB |
3299 | int event_index; |
3300 | ||
3301 | event_queue = &ctrl_info->event_queue; | |
3302 | num_events = 0; | |
6c223761 KB |
3303 | oq_ci = event_queue->oq_ci_copy; |
3304 | ||
3305 | while (1) { | |
dac12fbc | 3306 | oq_pi = readl(event_queue->oq_pi); |
6c223761 KB |
3307 | if (oq_pi == oq_ci) |
3308 | break; | |
3309 | ||
3310 | num_events++; | |
3311 | response = event_queue->oq_element_array + | |
3312 | (oq_ci * PQI_EVENT_OQ_ELEMENT_LENGTH); | |
3313 | ||
3314 | event_index = | |
3315 | pqi_event_type_to_event_index(response->event_type); | |
3316 | ||
3317 | if (event_index >= 0) { | |
3318 | if (response->request_acknowlege) { | |
6a50d6ad KB |
3319 | event = &ctrl_info->events[event_index]; |
3320 | event->pending = true; | |
3321 | event->event_type = response->event_type; | |
3322 | event->event_id = response->event_id; | |
3323 | event->additional_event_id = | |
6c223761 | 3324 | response->additional_event_id; |
4fd22c13 | 3325 | pqi_ofa_capture_event_payload(event, response); |
6c223761 KB |
3326 | } |
3327 | } | |
3328 | ||
3329 | oq_ci = (oq_ci + 1) % PQI_NUM_EVENT_QUEUE_ELEMENTS; | |
3330 | } | |
3331 | ||
3332 | if (num_events) { | |
3333 | event_queue->oq_ci_copy = oq_ci; | |
3334 | writel(oq_ci, event_queue->oq_ci); | |
98f87667 | 3335 | schedule_work(&ctrl_info->event_work); |
6c223761 KB |
3336 | } |
3337 | ||
3338 | return num_events; | |
3339 | } | |
3340 | ||
061ef06a KB |
3341 | #define PQI_LEGACY_INTX_MASK 0x1 |
3342 | ||
3343 | static inline void pqi_configure_legacy_intx(struct pqi_ctrl_info *ctrl_info, | |
3344 | bool enable_intx) | |
3345 | { | |
3346 | u32 intx_mask; | |
3347 | struct pqi_device_registers __iomem *pqi_registers; | |
3348 | volatile void __iomem *register_addr; | |
3349 | ||
3350 | pqi_registers = ctrl_info->pqi_registers; | |
3351 | ||
3352 | if (enable_intx) | |
3353 | register_addr = &pqi_registers->legacy_intx_mask_clear; | |
3354 | else | |
3355 | register_addr = &pqi_registers->legacy_intx_mask_set; | |
3356 | ||
3357 | intx_mask = readl(register_addr); | |
3358 | intx_mask |= PQI_LEGACY_INTX_MASK; | |
3359 | writel(intx_mask, register_addr); | |
3360 | } | |
3361 | ||
3362 | static void pqi_change_irq_mode(struct pqi_ctrl_info *ctrl_info, | |
3363 | enum pqi_irq_mode new_mode) | |
3364 | { | |
3365 | switch (ctrl_info->irq_mode) { | |
3366 | case IRQ_MODE_MSIX: | |
3367 | switch (new_mode) { | |
3368 | case IRQ_MODE_MSIX: | |
3369 | break; | |
3370 | case IRQ_MODE_INTX: | |
3371 | pqi_configure_legacy_intx(ctrl_info, true); | |
061ef06a KB |
3372 | sis_enable_intx(ctrl_info); |
3373 | break; | |
3374 | case IRQ_MODE_NONE: | |
061ef06a KB |
3375 | break; |
3376 | } | |
3377 | break; | |
3378 | case IRQ_MODE_INTX: | |
3379 | switch (new_mode) { | |
3380 | case IRQ_MODE_MSIX: | |
3381 | pqi_configure_legacy_intx(ctrl_info, false); | |
061ef06a KB |
3382 | sis_enable_msix(ctrl_info); |
3383 | break; | |
3384 | case IRQ_MODE_INTX: | |
3385 | break; | |
3386 | case IRQ_MODE_NONE: | |
3387 | pqi_configure_legacy_intx(ctrl_info, false); | |
061ef06a KB |
3388 | break; |
3389 | } | |
3390 | break; | |
3391 | case IRQ_MODE_NONE: | |
3392 | switch (new_mode) { | |
3393 | case IRQ_MODE_MSIX: | |
3394 | sis_enable_msix(ctrl_info); | |
3395 | break; | |
3396 | case IRQ_MODE_INTX: | |
3397 | pqi_configure_legacy_intx(ctrl_info, true); | |
3398 | sis_enable_intx(ctrl_info); | |
3399 | break; | |
3400 | case IRQ_MODE_NONE: | |
3401 | break; | |
3402 | } | |
3403 | break; | |
3404 | } | |
3405 | ||
3406 | ctrl_info->irq_mode = new_mode; | |
3407 | } | |
3408 | ||
3409 | #define PQI_LEGACY_INTX_PENDING 0x1 | |
3410 | ||
3411 | static inline bool pqi_is_valid_irq(struct pqi_ctrl_info *ctrl_info) | |
3412 | { | |
3413 | bool valid_irq; | |
3414 | u32 intx_status; | |
3415 | ||
3416 | switch (ctrl_info->irq_mode) { | |
3417 | case IRQ_MODE_MSIX: | |
3418 | valid_irq = true; | |
3419 | break; | |
3420 | case IRQ_MODE_INTX: | |
3421 | intx_status = | |
3422 | readl(&ctrl_info->pqi_registers->legacy_intx_status); | |
3423 | if (intx_status & PQI_LEGACY_INTX_PENDING) | |
3424 | valid_irq = true; | |
3425 | else | |
3426 | valid_irq = false; | |
3427 | break; | |
3428 | case IRQ_MODE_NONE: | |
3429 | default: | |
3430 | valid_irq = false; | |
3431 | break; | |
3432 | } | |
3433 | ||
3434 | return valid_irq; | |
3435 | } | |
3436 | ||
6c223761 KB |
3437 | static irqreturn_t pqi_irq_handler(int irq, void *data) |
3438 | { | |
3439 | struct pqi_ctrl_info *ctrl_info; | |
3440 | struct pqi_queue_group *queue_group; | |
3441 | unsigned int num_responses_handled; | |
3442 | ||
3443 | queue_group = data; | |
3444 | ctrl_info = queue_group->ctrl_info; | |
3445 | ||
061ef06a | 3446 | if (!pqi_is_valid_irq(ctrl_info)) |
6c223761 KB |
3447 | return IRQ_NONE; |
3448 | ||
3449 | num_responses_handled = pqi_process_io_intr(ctrl_info, queue_group); | |
3450 | ||
3451 | if (irq == ctrl_info->event_irq) | |
3452 | num_responses_handled += pqi_process_event_intr(ctrl_info); | |
3453 | ||
3454 | if (num_responses_handled) | |
3455 | atomic_inc(&ctrl_info->num_interrupts); | |
3456 | ||
3457 | pqi_start_io(ctrl_info, queue_group, RAID_PATH, NULL); | |
3458 | pqi_start_io(ctrl_info, queue_group, AIO_PATH, NULL); | |
3459 | ||
3460 | return IRQ_HANDLED; | |
3461 | } | |
3462 | ||
3463 | static int pqi_request_irqs(struct pqi_ctrl_info *ctrl_info) | |
3464 | { | |
d91d7820 | 3465 | struct pci_dev *pci_dev = ctrl_info->pci_dev; |
6c223761 KB |
3466 | int i; |
3467 | int rc; | |
3468 | ||
d91d7820 | 3469 | ctrl_info->event_irq = pci_irq_vector(pci_dev, 0); |
6c223761 KB |
3470 | |
3471 | for (i = 0; i < ctrl_info->num_msix_vectors_enabled; i++) { | |
d91d7820 | 3472 | rc = request_irq(pci_irq_vector(pci_dev, i), pqi_irq_handler, 0, |
52198226 | 3473 | DRIVER_NAME_SHORT, &ctrl_info->queue_groups[i]); |
6c223761 | 3474 | if (rc) { |
d91d7820 | 3475 | dev_err(&pci_dev->dev, |
6c223761 | 3476 | "irq %u init failed with error %d\n", |
d91d7820 | 3477 | pci_irq_vector(pci_dev, i), rc); |
6c223761 KB |
3478 | return rc; |
3479 | } | |
3480 | ctrl_info->num_msix_vectors_initialized++; | |
3481 | } | |
3482 | ||
3483 | return 0; | |
3484 | } | |
3485 | ||
98bf061b KB |
3486 | static void pqi_free_irqs(struct pqi_ctrl_info *ctrl_info) |
3487 | { | |
3488 | int i; | |
3489 | ||
3490 | for (i = 0; i < ctrl_info->num_msix_vectors_initialized; i++) | |
3491 | free_irq(pci_irq_vector(ctrl_info->pci_dev, i), | |
3492 | &ctrl_info->queue_groups[i]); | |
3493 | ||
3494 | ctrl_info->num_msix_vectors_initialized = 0; | |
3495 | } | |
3496 | ||
6c223761 KB |
3497 | static int pqi_enable_msix_interrupts(struct pqi_ctrl_info *ctrl_info) |
3498 | { | |
98bf061b | 3499 | int num_vectors_enabled; |
6c223761 | 3500 | |
98bf061b | 3501 | num_vectors_enabled = pci_alloc_irq_vectors(ctrl_info->pci_dev, |
52198226 CH |
3502 | PQI_MIN_MSIX_VECTORS, ctrl_info->num_queue_groups, |
3503 | PCI_IRQ_MSIX | PCI_IRQ_AFFINITY); | |
98bf061b | 3504 | if (num_vectors_enabled < 0) { |
6c223761 | 3505 | dev_err(&ctrl_info->pci_dev->dev, |
98bf061b KB |
3506 | "MSI-X init failed with error %d\n", |
3507 | num_vectors_enabled); | |
3508 | return num_vectors_enabled; | |
6c223761 KB |
3509 | } |
3510 | ||
98bf061b | 3511 | ctrl_info->num_msix_vectors_enabled = num_vectors_enabled; |
061ef06a | 3512 | ctrl_info->irq_mode = IRQ_MODE_MSIX; |
6c223761 KB |
3513 | return 0; |
3514 | } | |
3515 | ||
98bf061b KB |
3516 | static void pqi_disable_msix_interrupts(struct pqi_ctrl_info *ctrl_info) |
3517 | { | |
3518 | if (ctrl_info->num_msix_vectors_enabled) { | |
3519 | pci_free_irq_vectors(ctrl_info->pci_dev); | |
3520 | ctrl_info->num_msix_vectors_enabled = 0; | |
3521 | } | |
3522 | } | |
3523 | ||
6c223761 KB |
3524 | static int pqi_alloc_operational_queues(struct pqi_ctrl_info *ctrl_info) |
3525 | { | |
3526 | unsigned int i; | |
3527 | size_t alloc_length; | |
3528 | size_t element_array_length_per_iq; | |
3529 | size_t element_array_length_per_oq; | |
3530 | void *element_array; | |
dac12fbc | 3531 | void __iomem *next_queue_index; |
6c223761 KB |
3532 | void *aligned_pointer; |
3533 | unsigned int num_inbound_queues; | |
3534 | unsigned int num_outbound_queues; | |
3535 | unsigned int num_queue_indexes; | |
3536 | struct pqi_queue_group *queue_group; | |
3537 | ||
3538 | element_array_length_per_iq = | |
3539 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH * | |
3540 | ctrl_info->num_elements_per_iq; | |
3541 | element_array_length_per_oq = | |
3542 | PQI_OPERATIONAL_OQ_ELEMENT_LENGTH * | |
3543 | ctrl_info->num_elements_per_oq; | |
3544 | num_inbound_queues = ctrl_info->num_queue_groups * 2; | |
3545 | num_outbound_queues = ctrl_info->num_queue_groups; | |
3546 | num_queue_indexes = (ctrl_info->num_queue_groups * 3) + 1; | |
3547 | ||
3548 | aligned_pointer = NULL; | |
3549 | ||
3550 | for (i = 0; i < num_inbound_queues; i++) { | |
3551 | aligned_pointer = PTR_ALIGN(aligned_pointer, | |
3552 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); | |
3553 | aligned_pointer += element_array_length_per_iq; | |
3554 | } | |
3555 | ||
3556 | for (i = 0; i < num_outbound_queues; i++) { | |
3557 | aligned_pointer = PTR_ALIGN(aligned_pointer, | |
3558 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); | |
3559 | aligned_pointer += element_array_length_per_oq; | |
3560 | } | |
3561 | ||
3562 | aligned_pointer = PTR_ALIGN(aligned_pointer, | |
3563 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); | |
3564 | aligned_pointer += PQI_NUM_EVENT_QUEUE_ELEMENTS * | |
3565 | PQI_EVENT_OQ_ELEMENT_LENGTH; | |
3566 | ||
3567 | for (i = 0; i < num_queue_indexes; i++) { | |
3568 | aligned_pointer = PTR_ALIGN(aligned_pointer, | |
3569 | PQI_OPERATIONAL_INDEX_ALIGNMENT); | |
3570 | aligned_pointer += sizeof(pqi_index_t); | |
3571 | } | |
3572 | ||
3573 | alloc_length = (size_t)aligned_pointer + | |
3574 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT; | |
3575 | ||
e1d213bd KB |
3576 | alloc_length += PQI_EXTRA_SGL_MEMORY; |
3577 | ||
6c223761 KB |
3578 | ctrl_info->queue_memory_base = |
3579 | dma_zalloc_coherent(&ctrl_info->pci_dev->dev, | |
3580 | alloc_length, | |
3581 | &ctrl_info->queue_memory_base_dma_handle, GFP_KERNEL); | |
3582 | ||
d87d5474 | 3583 | if (!ctrl_info->queue_memory_base) |
6c223761 | 3584 | return -ENOMEM; |
6c223761 KB |
3585 | |
3586 | ctrl_info->queue_memory_length = alloc_length; | |
3587 | ||
3588 | element_array = PTR_ALIGN(ctrl_info->queue_memory_base, | |
3589 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); | |
3590 | ||
3591 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
3592 | queue_group = &ctrl_info->queue_groups[i]; | |
3593 | queue_group->iq_element_array[RAID_PATH] = element_array; | |
3594 | queue_group->iq_element_array_bus_addr[RAID_PATH] = | |
3595 | ctrl_info->queue_memory_base_dma_handle + | |
3596 | (element_array - ctrl_info->queue_memory_base); | |
3597 | element_array += element_array_length_per_iq; | |
3598 | element_array = PTR_ALIGN(element_array, | |
3599 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); | |
3600 | queue_group->iq_element_array[AIO_PATH] = element_array; | |
3601 | queue_group->iq_element_array_bus_addr[AIO_PATH] = | |
3602 | ctrl_info->queue_memory_base_dma_handle + | |
3603 | (element_array - ctrl_info->queue_memory_base); | |
3604 | element_array += element_array_length_per_iq; | |
3605 | element_array = PTR_ALIGN(element_array, | |
3606 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); | |
3607 | } | |
3608 | ||
3609 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
3610 | queue_group = &ctrl_info->queue_groups[i]; | |
3611 | queue_group->oq_element_array = element_array; | |
3612 | queue_group->oq_element_array_bus_addr = | |
3613 | ctrl_info->queue_memory_base_dma_handle + | |
3614 | (element_array - ctrl_info->queue_memory_base); | |
3615 | element_array += element_array_length_per_oq; | |
3616 | element_array = PTR_ALIGN(element_array, | |
3617 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); | |
3618 | } | |
3619 | ||
3620 | ctrl_info->event_queue.oq_element_array = element_array; | |
3621 | ctrl_info->event_queue.oq_element_array_bus_addr = | |
3622 | ctrl_info->queue_memory_base_dma_handle + | |
3623 | (element_array - ctrl_info->queue_memory_base); | |
3624 | element_array += PQI_NUM_EVENT_QUEUE_ELEMENTS * | |
3625 | PQI_EVENT_OQ_ELEMENT_LENGTH; | |
3626 | ||
dac12fbc | 3627 | next_queue_index = (void __iomem *)PTR_ALIGN(element_array, |
6c223761 KB |
3628 | PQI_OPERATIONAL_INDEX_ALIGNMENT); |
3629 | ||
3630 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
3631 | queue_group = &ctrl_info->queue_groups[i]; | |
3632 | queue_group->iq_ci[RAID_PATH] = next_queue_index; | |
3633 | queue_group->iq_ci_bus_addr[RAID_PATH] = | |
3634 | ctrl_info->queue_memory_base_dma_handle + | |
dac12fbc KB |
3635 | (next_queue_index - |
3636 | (void __iomem *)ctrl_info->queue_memory_base); | |
6c223761 KB |
3637 | next_queue_index += sizeof(pqi_index_t); |
3638 | next_queue_index = PTR_ALIGN(next_queue_index, | |
3639 | PQI_OPERATIONAL_INDEX_ALIGNMENT); | |
3640 | queue_group->iq_ci[AIO_PATH] = next_queue_index; | |
3641 | queue_group->iq_ci_bus_addr[AIO_PATH] = | |
3642 | ctrl_info->queue_memory_base_dma_handle + | |
dac12fbc KB |
3643 | (next_queue_index - |
3644 | (void __iomem *)ctrl_info->queue_memory_base); | |
6c223761 KB |
3645 | next_queue_index += sizeof(pqi_index_t); |
3646 | next_queue_index = PTR_ALIGN(next_queue_index, | |
3647 | PQI_OPERATIONAL_INDEX_ALIGNMENT); | |
3648 | queue_group->oq_pi = next_queue_index; | |
3649 | queue_group->oq_pi_bus_addr = | |
3650 | ctrl_info->queue_memory_base_dma_handle + | |
dac12fbc KB |
3651 | (next_queue_index - |
3652 | (void __iomem *)ctrl_info->queue_memory_base); | |
6c223761 KB |
3653 | next_queue_index += sizeof(pqi_index_t); |
3654 | next_queue_index = PTR_ALIGN(next_queue_index, | |
3655 | PQI_OPERATIONAL_INDEX_ALIGNMENT); | |
3656 | } | |
3657 | ||
3658 | ctrl_info->event_queue.oq_pi = next_queue_index; | |
3659 | ctrl_info->event_queue.oq_pi_bus_addr = | |
3660 | ctrl_info->queue_memory_base_dma_handle + | |
dac12fbc KB |
3661 | (next_queue_index - |
3662 | (void __iomem *)ctrl_info->queue_memory_base); | |
6c223761 KB |
3663 | |
3664 | return 0; | |
3665 | } | |
3666 | ||
3667 | static void pqi_init_operational_queues(struct pqi_ctrl_info *ctrl_info) | |
3668 | { | |
3669 | unsigned int i; | |
3670 | u16 next_iq_id = PQI_MIN_OPERATIONAL_QUEUE_ID; | |
3671 | u16 next_oq_id = PQI_MIN_OPERATIONAL_QUEUE_ID; | |
3672 | ||
3673 | /* | |
3674 | * Initialize the backpointers to the controller structure in | |
3675 | * each operational queue group structure. | |
3676 | */ | |
3677 | for (i = 0; i < ctrl_info->num_queue_groups; i++) | |
3678 | ctrl_info->queue_groups[i].ctrl_info = ctrl_info; | |
3679 | ||
3680 | /* | |
3681 | * Assign IDs to all operational queues. Note that the IDs | |
3682 | * assigned to operational IQs are independent of the IDs | |
3683 | * assigned to operational OQs. | |
3684 | */ | |
3685 | ctrl_info->event_queue.oq_id = next_oq_id++; | |
3686 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
3687 | ctrl_info->queue_groups[i].iq_id[RAID_PATH] = next_iq_id++; | |
3688 | ctrl_info->queue_groups[i].iq_id[AIO_PATH] = next_iq_id++; | |
3689 | ctrl_info->queue_groups[i].oq_id = next_oq_id++; | |
3690 | } | |
3691 | ||
3692 | /* | |
3693 | * Assign MSI-X table entry indexes to all queues. Note that the | |
3694 | * interrupt for the event queue is shared with the first queue group. | |
3695 | */ | |
3696 | ctrl_info->event_queue.int_msg_num = 0; | |
3697 | for (i = 0; i < ctrl_info->num_queue_groups; i++) | |
3698 | ctrl_info->queue_groups[i].int_msg_num = i; | |
3699 | ||
3700 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
3701 | spin_lock_init(&ctrl_info->queue_groups[i].submit_lock[0]); | |
3702 | spin_lock_init(&ctrl_info->queue_groups[i].submit_lock[1]); | |
3703 | INIT_LIST_HEAD(&ctrl_info->queue_groups[i].request_list[0]); | |
3704 | INIT_LIST_HEAD(&ctrl_info->queue_groups[i].request_list[1]); | |
3705 | } | |
3706 | } | |
3707 | ||
3708 | static int pqi_alloc_admin_queues(struct pqi_ctrl_info *ctrl_info) | |
3709 | { | |
3710 | size_t alloc_length; | |
3711 | struct pqi_admin_queues_aligned *admin_queues_aligned; | |
3712 | struct pqi_admin_queues *admin_queues; | |
3713 | ||
3714 | alloc_length = sizeof(struct pqi_admin_queues_aligned) + | |
3715 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT; | |
3716 | ||
3717 | ctrl_info->admin_queue_memory_base = | |
3718 | dma_zalloc_coherent(&ctrl_info->pci_dev->dev, | |
3719 | alloc_length, | |
3720 | &ctrl_info->admin_queue_memory_base_dma_handle, | |
3721 | GFP_KERNEL); | |
3722 | ||
3723 | if (!ctrl_info->admin_queue_memory_base) | |
3724 | return -ENOMEM; | |
3725 | ||
3726 | ctrl_info->admin_queue_memory_length = alloc_length; | |
3727 | ||
3728 | admin_queues = &ctrl_info->admin_queues; | |
3729 | admin_queues_aligned = PTR_ALIGN(ctrl_info->admin_queue_memory_base, | |
3730 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); | |
3731 | admin_queues->iq_element_array = | |
3732 | &admin_queues_aligned->iq_element_array; | |
3733 | admin_queues->oq_element_array = | |
3734 | &admin_queues_aligned->oq_element_array; | |
3735 | admin_queues->iq_ci = &admin_queues_aligned->iq_ci; | |
dac12fbc KB |
3736 | admin_queues->oq_pi = |
3737 | (pqi_index_t __iomem *)&admin_queues_aligned->oq_pi; | |
6c223761 KB |
3738 | |
3739 | admin_queues->iq_element_array_bus_addr = | |
3740 | ctrl_info->admin_queue_memory_base_dma_handle + | |
3741 | (admin_queues->iq_element_array - | |
3742 | ctrl_info->admin_queue_memory_base); | |
3743 | admin_queues->oq_element_array_bus_addr = | |
3744 | ctrl_info->admin_queue_memory_base_dma_handle + | |
3745 | (admin_queues->oq_element_array - | |
3746 | ctrl_info->admin_queue_memory_base); | |
3747 | admin_queues->iq_ci_bus_addr = | |
3748 | ctrl_info->admin_queue_memory_base_dma_handle + | |
3749 | ((void *)admin_queues->iq_ci - | |
3750 | ctrl_info->admin_queue_memory_base); | |
3751 | admin_queues->oq_pi_bus_addr = | |
3752 | ctrl_info->admin_queue_memory_base_dma_handle + | |
dac12fbc KB |
3753 | ((void __iomem *)admin_queues->oq_pi - |
3754 | (void __iomem *)ctrl_info->admin_queue_memory_base); | |
6c223761 KB |
3755 | |
3756 | return 0; | |
3757 | } | |
3758 | ||
4fd22c13 | 3759 | #define PQI_ADMIN_QUEUE_CREATE_TIMEOUT_JIFFIES PQI_HZ |
6c223761 KB |
3760 | #define PQI_ADMIN_QUEUE_CREATE_POLL_INTERVAL_MSECS 1 |
3761 | ||
3762 | static int pqi_create_admin_queues(struct pqi_ctrl_info *ctrl_info) | |
3763 | { | |
3764 | struct pqi_device_registers __iomem *pqi_registers; | |
3765 | struct pqi_admin_queues *admin_queues; | |
3766 | unsigned long timeout; | |
3767 | u8 status; | |
3768 | u32 reg; | |
3769 | ||
3770 | pqi_registers = ctrl_info->pqi_registers; | |
3771 | admin_queues = &ctrl_info->admin_queues; | |
3772 | ||
3773 | writeq((u64)admin_queues->iq_element_array_bus_addr, | |
3774 | &pqi_registers->admin_iq_element_array_addr); | |
3775 | writeq((u64)admin_queues->oq_element_array_bus_addr, | |
3776 | &pqi_registers->admin_oq_element_array_addr); | |
3777 | writeq((u64)admin_queues->iq_ci_bus_addr, | |
3778 | &pqi_registers->admin_iq_ci_addr); | |
3779 | writeq((u64)admin_queues->oq_pi_bus_addr, | |
3780 | &pqi_registers->admin_oq_pi_addr); | |
3781 | ||
3782 | reg = PQI_ADMIN_IQ_NUM_ELEMENTS | | |
3783 | (PQI_ADMIN_OQ_NUM_ELEMENTS) << 8 | | |
3784 | (admin_queues->int_msg_num << 16); | |
3785 | writel(reg, &pqi_registers->admin_iq_num_elements); | |
3786 | writel(PQI_CREATE_ADMIN_QUEUE_PAIR, | |
3787 | &pqi_registers->function_and_status_code); | |
3788 | ||
3789 | timeout = PQI_ADMIN_QUEUE_CREATE_TIMEOUT_JIFFIES + jiffies; | |
3790 | while (1) { | |
3791 | status = readb(&pqi_registers->function_and_status_code); | |
3792 | if (status == PQI_STATUS_IDLE) | |
3793 | break; | |
3794 | if (time_after(jiffies, timeout)) | |
3795 | return -ETIMEDOUT; | |
3796 | msleep(PQI_ADMIN_QUEUE_CREATE_POLL_INTERVAL_MSECS); | |
3797 | } | |
3798 | ||
3799 | /* | |
3800 | * The offset registers are not initialized to the correct | |
3801 | * offsets until *after* the create admin queue pair command | |
3802 | * completes successfully. | |
3803 | */ | |
3804 | admin_queues->iq_pi = ctrl_info->iomem_base + | |
3805 | PQI_DEVICE_REGISTERS_OFFSET + | |
3806 | readq(&pqi_registers->admin_iq_pi_offset); | |
3807 | admin_queues->oq_ci = ctrl_info->iomem_base + | |
3808 | PQI_DEVICE_REGISTERS_OFFSET + | |
3809 | readq(&pqi_registers->admin_oq_ci_offset); | |
3810 | ||
3811 | return 0; | |
3812 | } | |
3813 | ||
3814 | static void pqi_submit_admin_request(struct pqi_ctrl_info *ctrl_info, | |
3815 | struct pqi_general_admin_request *request) | |
3816 | { | |
3817 | struct pqi_admin_queues *admin_queues; | |
3818 | void *next_element; | |
3819 | pqi_index_t iq_pi; | |
3820 | ||
3821 | admin_queues = &ctrl_info->admin_queues; | |
3822 | iq_pi = admin_queues->iq_pi_copy; | |
3823 | ||
3824 | next_element = admin_queues->iq_element_array + | |
3825 | (iq_pi * PQI_ADMIN_IQ_ELEMENT_LENGTH); | |
3826 | ||
3827 | memcpy(next_element, request, sizeof(*request)); | |
3828 | ||
3829 | iq_pi = (iq_pi + 1) % PQI_ADMIN_IQ_NUM_ELEMENTS; | |
3830 | admin_queues->iq_pi_copy = iq_pi; | |
3831 | ||
3832 | /* | |
3833 | * This write notifies the controller that an IU is available to be | |
3834 | * processed. | |
3835 | */ | |
3836 | writel(iq_pi, admin_queues->iq_pi); | |
3837 | } | |
3838 | ||
13bede67 KB |
3839 | #define PQI_ADMIN_REQUEST_TIMEOUT_SECS 60 |
3840 | ||
6c223761 KB |
3841 | static int pqi_poll_for_admin_response(struct pqi_ctrl_info *ctrl_info, |
3842 | struct pqi_general_admin_response *response) | |
3843 | { | |
3844 | struct pqi_admin_queues *admin_queues; | |
3845 | pqi_index_t oq_pi; | |
3846 | pqi_index_t oq_ci; | |
3847 | unsigned long timeout; | |
3848 | ||
3849 | admin_queues = &ctrl_info->admin_queues; | |
3850 | oq_ci = admin_queues->oq_ci_copy; | |
3851 | ||
4fd22c13 | 3852 | timeout = (PQI_ADMIN_REQUEST_TIMEOUT_SECS * PQI_HZ) + jiffies; |
6c223761 KB |
3853 | |
3854 | while (1) { | |
dac12fbc | 3855 | oq_pi = readl(admin_queues->oq_pi); |
6c223761 KB |
3856 | if (oq_pi != oq_ci) |
3857 | break; | |
3858 | if (time_after(jiffies, timeout)) { | |
3859 | dev_err(&ctrl_info->pci_dev->dev, | |
3860 | "timed out waiting for admin response\n"); | |
3861 | return -ETIMEDOUT; | |
3862 | } | |
13bede67 KB |
3863 | if (!sis_is_firmware_running(ctrl_info)) |
3864 | return -ENXIO; | |
6c223761 KB |
3865 | usleep_range(1000, 2000); |
3866 | } | |
3867 | ||
3868 | memcpy(response, admin_queues->oq_element_array + | |
3869 | (oq_ci * PQI_ADMIN_OQ_ELEMENT_LENGTH), sizeof(*response)); | |
3870 | ||
3871 | oq_ci = (oq_ci + 1) % PQI_ADMIN_OQ_NUM_ELEMENTS; | |
3872 | admin_queues->oq_ci_copy = oq_ci; | |
3873 | writel(oq_ci, admin_queues->oq_ci); | |
3874 | ||
3875 | return 0; | |
3876 | } | |
3877 | ||
3878 | static void pqi_start_io(struct pqi_ctrl_info *ctrl_info, | |
3879 | struct pqi_queue_group *queue_group, enum pqi_io_path path, | |
3880 | struct pqi_io_request *io_request) | |
3881 | { | |
3882 | struct pqi_io_request *next; | |
3883 | void *next_element; | |
3884 | pqi_index_t iq_pi; | |
3885 | pqi_index_t iq_ci; | |
3886 | size_t iu_length; | |
3887 | unsigned long flags; | |
3888 | unsigned int num_elements_needed; | |
3889 | unsigned int num_elements_to_end_of_queue; | |
3890 | size_t copy_count; | |
3891 | struct pqi_iu_header *request; | |
3892 | ||
3893 | spin_lock_irqsave(&queue_group->submit_lock[path], flags); | |
3894 | ||
376fb880 KB |
3895 | if (io_request) { |
3896 | io_request->queue_group = queue_group; | |
6c223761 KB |
3897 | list_add_tail(&io_request->request_list_entry, |
3898 | &queue_group->request_list[path]); | |
376fb880 | 3899 | } |
6c223761 KB |
3900 | |
3901 | iq_pi = queue_group->iq_pi_copy[path]; | |
3902 | ||
3903 | list_for_each_entry_safe(io_request, next, | |
3904 | &queue_group->request_list[path], request_list_entry) { | |
3905 | ||
3906 | request = io_request->iu; | |
3907 | ||
3908 | iu_length = get_unaligned_le16(&request->iu_length) + | |
3909 | PQI_REQUEST_HEADER_LENGTH; | |
3910 | num_elements_needed = | |
3911 | DIV_ROUND_UP(iu_length, | |
3912 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); | |
3913 | ||
dac12fbc | 3914 | iq_ci = readl(queue_group->iq_ci[path]); |
6c223761 KB |
3915 | |
3916 | if (num_elements_needed > pqi_num_elements_free(iq_pi, iq_ci, | |
3917 | ctrl_info->num_elements_per_iq)) | |
3918 | break; | |
3919 | ||
3920 | put_unaligned_le16(queue_group->oq_id, | |
3921 | &request->response_queue_id); | |
3922 | ||
3923 | next_element = queue_group->iq_element_array[path] + | |
3924 | (iq_pi * PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); | |
3925 | ||
3926 | num_elements_to_end_of_queue = | |
3927 | ctrl_info->num_elements_per_iq - iq_pi; | |
3928 | ||
3929 | if (num_elements_needed <= num_elements_to_end_of_queue) { | |
3930 | memcpy(next_element, request, iu_length); | |
3931 | } else { | |
3932 | copy_count = num_elements_to_end_of_queue * | |
3933 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH; | |
3934 | memcpy(next_element, request, copy_count); | |
3935 | memcpy(queue_group->iq_element_array[path], | |
3936 | (u8 *)request + copy_count, | |
3937 | iu_length - copy_count); | |
3938 | } | |
3939 | ||
3940 | iq_pi = (iq_pi + num_elements_needed) % | |
3941 | ctrl_info->num_elements_per_iq; | |
3942 | ||
3943 | list_del(&io_request->request_list_entry); | |
3944 | } | |
3945 | ||
3946 | if (iq_pi != queue_group->iq_pi_copy[path]) { | |
3947 | queue_group->iq_pi_copy[path] = iq_pi; | |
3948 | /* | |
3949 | * This write notifies the controller that one or more IUs are | |
3950 | * available to be processed. | |
3951 | */ | |
3952 | writel(iq_pi, queue_group->iq_pi[path]); | |
3953 | } | |
3954 | ||
3955 | spin_unlock_irqrestore(&queue_group->submit_lock[path], flags); | |
3956 | } | |
3957 | ||
1f37e992 KB |
3958 | #define PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS 10 |
3959 | ||
3960 | static int pqi_wait_for_completion_io(struct pqi_ctrl_info *ctrl_info, | |
3961 | struct completion *wait) | |
3962 | { | |
3963 | int rc; | |
1f37e992 KB |
3964 | |
3965 | while (1) { | |
3966 | if (wait_for_completion_io_timeout(wait, | |
4fd22c13 | 3967 | PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS * PQI_HZ)) { |
1f37e992 KB |
3968 | rc = 0; |
3969 | break; | |
3970 | } | |
3971 | ||
3972 | pqi_check_ctrl_health(ctrl_info); | |
3973 | if (pqi_ctrl_offline(ctrl_info)) { | |
3974 | rc = -ENXIO; | |
3975 | break; | |
3976 | } | |
1f37e992 KB |
3977 | } |
3978 | ||
3979 | return rc; | |
3980 | } | |
3981 | ||
6c223761 KB |
3982 | static void pqi_raid_synchronous_complete(struct pqi_io_request *io_request, |
3983 | void *context) | |
3984 | { | |
3985 | struct completion *waiting = context; | |
3986 | ||
3987 | complete(waiting); | |
3988 | } | |
3989 | ||
26b390ab KB |
3990 | static int pqi_process_raid_io_error_synchronous(struct pqi_raid_error_info |
3991 | *error_info) | |
3992 | { | |
3993 | int rc = -EIO; | |
3994 | ||
3995 | switch (error_info->data_out_result) { | |
3996 | case PQI_DATA_IN_OUT_GOOD: | |
3997 | if (error_info->status == SAM_STAT_GOOD) | |
3998 | rc = 0; | |
3999 | break; | |
4000 | case PQI_DATA_IN_OUT_UNDERFLOW: | |
4001 | if (error_info->status == SAM_STAT_GOOD || | |
4002 | error_info->status == SAM_STAT_CHECK_CONDITION) | |
4003 | rc = 0; | |
4004 | break; | |
4005 | case PQI_DATA_IN_OUT_ABORTED: | |
4006 | rc = PQI_CMD_STATUS_ABORTED; | |
4007 | break; | |
4008 | } | |
4009 | ||
4010 | return rc; | |
4011 | } | |
4012 | ||
6c223761 KB |
4013 | static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info, |
4014 | struct pqi_iu_header *request, unsigned int flags, | |
4015 | struct pqi_raid_error_info *error_info, unsigned long timeout_msecs) | |
4016 | { | |
957c5ab1 | 4017 | int rc = 0; |
6c223761 KB |
4018 | struct pqi_io_request *io_request; |
4019 | unsigned long start_jiffies; | |
4020 | unsigned long msecs_blocked; | |
4021 | size_t iu_length; | |
957c5ab1 | 4022 | DECLARE_COMPLETION_ONSTACK(wait); |
6c223761 KB |
4023 | |
4024 | /* | |
4025 | * Note that specifying PQI_SYNC_FLAGS_INTERRUPTABLE and a timeout value | |
4026 | * are mutually exclusive. | |
4027 | */ | |
4028 | ||
4029 | if (flags & PQI_SYNC_FLAGS_INTERRUPTABLE) { | |
4030 | if (down_interruptible(&ctrl_info->sync_request_sem)) | |
4031 | return -ERESTARTSYS; | |
4032 | } else { | |
4033 | if (timeout_msecs == NO_TIMEOUT) { | |
4034 | down(&ctrl_info->sync_request_sem); | |
4035 | } else { | |
4036 | start_jiffies = jiffies; | |
4037 | if (down_timeout(&ctrl_info->sync_request_sem, | |
4038 | msecs_to_jiffies(timeout_msecs))) | |
4039 | return -ETIMEDOUT; | |
4040 | msecs_blocked = | |
4041 | jiffies_to_msecs(jiffies - start_jiffies); | |
4042 | if (msecs_blocked >= timeout_msecs) | |
4043 | return -ETIMEDOUT; | |
4044 | timeout_msecs -= msecs_blocked; | |
4045 | } | |
4046 | } | |
4047 | ||
7561a7e4 KB |
4048 | pqi_ctrl_busy(ctrl_info); |
4049 | timeout_msecs = pqi_wait_if_ctrl_blocked(ctrl_info, timeout_msecs); | |
4050 | if (timeout_msecs == 0) { | |
957c5ab1 | 4051 | pqi_ctrl_unbusy(ctrl_info); |
7561a7e4 KB |
4052 | rc = -ETIMEDOUT; |
4053 | goto out; | |
4054 | } | |
4055 | ||
376fb880 | 4056 | if (pqi_ctrl_offline(ctrl_info)) { |
957c5ab1 | 4057 | pqi_ctrl_unbusy(ctrl_info); |
376fb880 KB |
4058 | rc = -ENXIO; |
4059 | goto out; | |
4060 | } | |
4061 | ||
6c223761 KB |
4062 | io_request = pqi_alloc_io_request(ctrl_info); |
4063 | ||
4064 | put_unaligned_le16(io_request->index, | |
4065 | &(((struct pqi_raid_path_request *)request)->request_id)); | |
4066 | ||
4067 | if (request->iu_type == PQI_REQUEST_IU_RAID_PATH_IO) | |
4068 | ((struct pqi_raid_path_request *)request)->error_index = | |
4069 | ((struct pqi_raid_path_request *)request)->request_id; | |
4070 | ||
4071 | iu_length = get_unaligned_le16(&request->iu_length) + | |
4072 | PQI_REQUEST_HEADER_LENGTH; | |
4073 | memcpy(io_request->iu, request, iu_length); | |
4074 | ||
957c5ab1 KB |
4075 | io_request->io_complete_callback = pqi_raid_synchronous_complete; |
4076 | io_request->context = &wait; | |
4077 | ||
4078 | pqi_start_io(ctrl_info, | |
4079 | &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH, | |
4080 | io_request); | |
4081 | ||
4082 | pqi_ctrl_unbusy(ctrl_info); | |
4083 | ||
4084 | if (timeout_msecs == NO_TIMEOUT) { | |
4085 | pqi_wait_for_completion_io(ctrl_info, &wait); | |
4086 | } else { | |
4087 | if (!wait_for_completion_io_timeout(&wait, | |
4088 | msecs_to_jiffies(timeout_msecs))) { | |
4089 | dev_warn(&ctrl_info->pci_dev->dev, | |
4090 | "command timed out\n"); | |
4091 | rc = -ETIMEDOUT; | |
4092 | } | |
4093 | } | |
6c223761 KB |
4094 | |
4095 | if (error_info) { | |
4096 | if (io_request->error_info) | |
4097 | memcpy(error_info, io_request->error_info, | |
4098 | sizeof(*error_info)); | |
4099 | else | |
4100 | memset(error_info, 0, sizeof(*error_info)); | |
4101 | } else if (rc == 0 && io_request->error_info) { | |
26b390ab KB |
4102 | rc = pqi_process_raid_io_error_synchronous( |
4103 | io_request->error_info); | |
6c223761 KB |
4104 | } |
4105 | ||
4106 | pqi_free_io_request(io_request); | |
4107 | ||
7561a7e4 | 4108 | out: |
6c223761 KB |
4109 | up(&ctrl_info->sync_request_sem); |
4110 | ||
4111 | return rc; | |
4112 | } | |
4113 | ||
4114 | static int pqi_validate_admin_response( | |
4115 | struct pqi_general_admin_response *response, u8 expected_function_code) | |
4116 | { | |
4117 | if (response->header.iu_type != PQI_RESPONSE_IU_GENERAL_ADMIN) | |
4118 | return -EINVAL; | |
4119 | ||
4120 | if (get_unaligned_le16(&response->header.iu_length) != | |
4121 | PQI_GENERAL_ADMIN_IU_LENGTH) | |
4122 | return -EINVAL; | |
4123 | ||
4124 | if (response->function_code != expected_function_code) | |
4125 | return -EINVAL; | |
4126 | ||
4127 | if (response->status != PQI_GENERAL_ADMIN_STATUS_SUCCESS) | |
4128 | return -EINVAL; | |
4129 | ||
4130 | return 0; | |
4131 | } | |
4132 | ||
4133 | static int pqi_submit_admin_request_synchronous( | |
4134 | struct pqi_ctrl_info *ctrl_info, | |
4135 | struct pqi_general_admin_request *request, | |
4136 | struct pqi_general_admin_response *response) | |
4137 | { | |
4138 | int rc; | |
4139 | ||
4140 | pqi_submit_admin_request(ctrl_info, request); | |
4141 | ||
4142 | rc = pqi_poll_for_admin_response(ctrl_info, response); | |
4143 | ||
4144 | if (rc == 0) | |
4145 | rc = pqi_validate_admin_response(response, | |
4146 | request->function_code); | |
4147 | ||
4148 | return rc; | |
4149 | } | |
4150 | ||
4151 | static int pqi_report_device_capability(struct pqi_ctrl_info *ctrl_info) | |
4152 | { | |
4153 | int rc; | |
4154 | struct pqi_general_admin_request request; | |
4155 | struct pqi_general_admin_response response; | |
4156 | struct pqi_device_capability *capability; | |
4157 | struct pqi_iu_layer_descriptor *sop_iu_layer_descriptor; | |
4158 | ||
4159 | capability = kmalloc(sizeof(*capability), GFP_KERNEL); | |
4160 | if (!capability) | |
4161 | return -ENOMEM; | |
4162 | ||
4163 | memset(&request, 0, sizeof(request)); | |
4164 | ||
4165 | request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; | |
4166 | put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, | |
4167 | &request.header.iu_length); | |
4168 | request.function_code = | |
4169 | PQI_GENERAL_ADMIN_FUNCTION_REPORT_DEVICE_CAPABILITY; | |
4170 | put_unaligned_le32(sizeof(*capability), | |
4171 | &request.data.report_device_capability.buffer_length); | |
4172 | ||
4173 | rc = pqi_map_single(ctrl_info->pci_dev, | |
4174 | &request.data.report_device_capability.sg_descriptor, | |
4175 | capability, sizeof(*capability), | |
6917a9cc | 4176 | DMA_FROM_DEVICE); |
6c223761 KB |
4177 | if (rc) |
4178 | goto out; | |
4179 | ||
4180 | rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, | |
4181 | &response); | |
4182 | ||
4183 | pqi_pci_unmap(ctrl_info->pci_dev, | |
4184 | &request.data.report_device_capability.sg_descriptor, 1, | |
6917a9cc | 4185 | DMA_FROM_DEVICE); |
6c223761 KB |
4186 | |
4187 | if (rc) | |
4188 | goto out; | |
4189 | ||
4190 | if (response.status != PQI_GENERAL_ADMIN_STATUS_SUCCESS) { | |
4191 | rc = -EIO; | |
4192 | goto out; | |
4193 | } | |
4194 | ||
4195 | ctrl_info->max_inbound_queues = | |
4196 | get_unaligned_le16(&capability->max_inbound_queues); | |
4197 | ctrl_info->max_elements_per_iq = | |
4198 | get_unaligned_le16(&capability->max_elements_per_iq); | |
4199 | ctrl_info->max_iq_element_length = | |
4200 | get_unaligned_le16(&capability->max_iq_element_length) | |
4201 | * 16; | |
4202 | ctrl_info->max_outbound_queues = | |
4203 | get_unaligned_le16(&capability->max_outbound_queues); | |
4204 | ctrl_info->max_elements_per_oq = | |
4205 | get_unaligned_le16(&capability->max_elements_per_oq); | |
4206 | ctrl_info->max_oq_element_length = | |
4207 | get_unaligned_le16(&capability->max_oq_element_length) | |
4208 | * 16; | |
4209 | ||
4210 | sop_iu_layer_descriptor = | |
4211 | &capability->iu_layer_descriptors[PQI_PROTOCOL_SOP]; | |
4212 | ||
4213 | ctrl_info->max_inbound_iu_length_per_firmware = | |
4214 | get_unaligned_le16( | |
4215 | &sop_iu_layer_descriptor->max_inbound_iu_length); | |
4216 | ctrl_info->inbound_spanning_supported = | |
4217 | sop_iu_layer_descriptor->inbound_spanning_supported; | |
4218 | ctrl_info->outbound_spanning_supported = | |
4219 | sop_iu_layer_descriptor->outbound_spanning_supported; | |
4220 | ||
4221 | out: | |
4222 | kfree(capability); | |
4223 | ||
4224 | return rc; | |
4225 | } | |
4226 | ||
4227 | static int pqi_validate_device_capability(struct pqi_ctrl_info *ctrl_info) | |
4228 | { | |
4229 | if (ctrl_info->max_iq_element_length < | |
4230 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) { | |
4231 | dev_err(&ctrl_info->pci_dev->dev, | |
4232 | "max. inbound queue element length of %d is less than the required length of %d\n", | |
4233 | ctrl_info->max_iq_element_length, | |
4234 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); | |
4235 | return -EINVAL; | |
4236 | } | |
4237 | ||
4238 | if (ctrl_info->max_oq_element_length < | |
4239 | PQI_OPERATIONAL_OQ_ELEMENT_LENGTH) { | |
4240 | dev_err(&ctrl_info->pci_dev->dev, | |
4241 | "max. outbound queue element length of %d is less than the required length of %d\n", | |
4242 | ctrl_info->max_oq_element_length, | |
4243 | PQI_OPERATIONAL_OQ_ELEMENT_LENGTH); | |
4244 | return -EINVAL; | |
4245 | } | |
4246 | ||
4247 | if (ctrl_info->max_inbound_iu_length_per_firmware < | |
4248 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) { | |
4249 | dev_err(&ctrl_info->pci_dev->dev, | |
4250 | "max. inbound IU length of %u is less than the min. required length of %d\n", | |
4251 | ctrl_info->max_inbound_iu_length_per_firmware, | |
4252 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); | |
4253 | return -EINVAL; | |
4254 | } | |
4255 | ||
77668f41 KB |
4256 | if (!ctrl_info->inbound_spanning_supported) { |
4257 | dev_err(&ctrl_info->pci_dev->dev, | |
4258 | "the controller does not support inbound spanning\n"); | |
4259 | return -EINVAL; | |
4260 | } | |
4261 | ||
4262 | if (ctrl_info->outbound_spanning_supported) { | |
4263 | dev_err(&ctrl_info->pci_dev->dev, | |
4264 | "the controller supports outbound spanning but this driver does not\n"); | |
4265 | return -EINVAL; | |
4266 | } | |
4267 | ||
6c223761 KB |
4268 | return 0; |
4269 | } | |
4270 | ||
6c223761 KB |
4271 | static int pqi_create_event_queue(struct pqi_ctrl_info *ctrl_info) |
4272 | { | |
4273 | int rc; | |
4274 | struct pqi_event_queue *event_queue; | |
4275 | struct pqi_general_admin_request request; | |
4276 | struct pqi_general_admin_response response; | |
4277 | ||
4278 | event_queue = &ctrl_info->event_queue; | |
4279 | ||
4280 | /* | |
4281 | * Create OQ (Outbound Queue - device to host queue) to dedicate | |
4282 | * to events. | |
4283 | */ | |
4284 | memset(&request, 0, sizeof(request)); | |
4285 | request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; | |
4286 | put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, | |
4287 | &request.header.iu_length); | |
4288 | request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ; | |
4289 | put_unaligned_le16(event_queue->oq_id, | |
4290 | &request.data.create_operational_oq.queue_id); | |
4291 | put_unaligned_le64((u64)event_queue->oq_element_array_bus_addr, | |
4292 | &request.data.create_operational_oq.element_array_addr); | |
4293 | put_unaligned_le64((u64)event_queue->oq_pi_bus_addr, | |
4294 | &request.data.create_operational_oq.pi_addr); | |
4295 | put_unaligned_le16(PQI_NUM_EVENT_QUEUE_ELEMENTS, | |
4296 | &request.data.create_operational_oq.num_elements); | |
4297 | put_unaligned_le16(PQI_EVENT_OQ_ELEMENT_LENGTH / 16, | |
4298 | &request.data.create_operational_oq.element_length); | |
4299 | request.data.create_operational_oq.queue_protocol = PQI_PROTOCOL_SOP; | |
4300 | put_unaligned_le16(event_queue->int_msg_num, | |
4301 | &request.data.create_operational_oq.int_msg_num); | |
4302 | ||
4303 | rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, | |
4304 | &response); | |
4305 | if (rc) | |
4306 | return rc; | |
4307 | ||
4308 | event_queue->oq_ci = ctrl_info->iomem_base + | |
4309 | PQI_DEVICE_REGISTERS_OFFSET + | |
4310 | get_unaligned_le64( | |
4311 | &response.data.create_operational_oq.oq_ci_offset); | |
4312 | ||
4313 | return 0; | |
4314 | } | |
4315 | ||
061ef06a KB |
4316 | static int pqi_create_queue_group(struct pqi_ctrl_info *ctrl_info, |
4317 | unsigned int group_number) | |
6c223761 | 4318 | { |
6c223761 KB |
4319 | int rc; |
4320 | struct pqi_queue_group *queue_group; | |
4321 | struct pqi_general_admin_request request; | |
4322 | struct pqi_general_admin_response response; | |
4323 | ||
061ef06a | 4324 | queue_group = &ctrl_info->queue_groups[group_number]; |
6c223761 KB |
4325 | |
4326 | /* | |
4327 | * Create IQ (Inbound Queue - host to device queue) for | |
4328 | * RAID path. | |
4329 | */ | |
4330 | memset(&request, 0, sizeof(request)); | |
4331 | request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; | |
4332 | put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, | |
4333 | &request.header.iu_length); | |
4334 | request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ; | |
4335 | put_unaligned_le16(queue_group->iq_id[RAID_PATH], | |
4336 | &request.data.create_operational_iq.queue_id); | |
4337 | put_unaligned_le64( | |
4338 | (u64)queue_group->iq_element_array_bus_addr[RAID_PATH], | |
4339 | &request.data.create_operational_iq.element_array_addr); | |
4340 | put_unaligned_le64((u64)queue_group->iq_ci_bus_addr[RAID_PATH], | |
4341 | &request.data.create_operational_iq.ci_addr); | |
4342 | put_unaligned_le16(ctrl_info->num_elements_per_iq, | |
4343 | &request.data.create_operational_iq.num_elements); | |
4344 | put_unaligned_le16(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH / 16, | |
4345 | &request.data.create_operational_iq.element_length); | |
4346 | request.data.create_operational_iq.queue_protocol = PQI_PROTOCOL_SOP; | |
4347 | ||
4348 | rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, | |
4349 | &response); | |
4350 | if (rc) { | |
4351 | dev_err(&ctrl_info->pci_dev->dev, | |
4352 | "error creating inbound RAID queue\n"); | |
4353 | return rc; | |
4354 | } | |
4355 | ||
4356 | queue_group->iq_pi[RAID_PATH] = ctrl_info->iomem_base + | |
4357 | PQI_DEVICE_REGISTERS_OFFSET + | |
4358 | get_unaligned_le64( | |
4359 | &response.data.create_operational_iq.iq_pi_offset); | |
4360 | ||
4361 | /* | |
4362 | * Create IQ (Inbound Queue - host to device queue) for | |
4363 | * Advanced I/O (AIO) path. | |
4364 | */ | |
4365 | memset(&request, 0, sizeof(request)); | |
4366 | request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; | |
4367 | put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, | |
4368 | &request.header.iu_length); | |
4369 | request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ; | |
4370 | put_unaligned_le16(queue_group->iq_id[AIO_PATH], | |
4371 | &request.data.create_operational_iq.queue_id); | |
4372 | put_unaligned_le64((u64)queue_group-> | |
4373 | iq_element_array_bus_addr[AIO_PATH], | |
4374 | &request.data.create_operational_iq.element_array_addr); | |
4375 | put_unaligned_le64((u64)queue_group->iq_ci_bus_addr[AIO_PATH], | |
4376 | &request.data.create_operational_iq.ci_addr); | |
4377 | put_unaligned_le16(ctrl_info->num_elements_per_iq, | |
4378 | &request.data.create_operational_iq.num_elements); | |
4379 | put_unaligned_le16(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH / 16, | |
4380 | &request.data.create_operational_iq.element_length); | |
4381 | request.data.create_operational_iq.queue_protocol = PQI_PROTOCOL_SOP; | |
4382 | ||
4383 | rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, | |
4384 | &response); | |
4385 | if (rc) { | |
4386 | dev_err(&ctrl_info->pci_dev->dev, | |
4387 | "error creating inbound AIO queue\n"); | |
339faa81 | 4388 | return rc; |
6c223761 KB |
4389 | } |
4390 | ||
4391 | queue_group->iq_pi[AIO_PATH] = ctrl_info->iomem_base + | |
4392 | PQI_DEVICE_REGISTERS_OFFSET + | |
4393 | get_unaligned_le64( | |
4394 | &response.data.create_operational_iq.iq_pi_offset); | |
4395 | ||
4396 | /* | |
4397 | * Designate the 2nd IQ as the AIO path. By default, all IQs are | |
4398 | * assumed to be for RAID path I/O unless we change the queue's | |
4399 | * property. | |
4400 | */ | |
4401 | memset(&request, 0, sizeof(request)); | |
4402 | request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; | |
4403 | put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, | |
4404 | &request.header.iu_length); | |
4405 | request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CHANGE_IQ_PROPERTY; | |
4406 | put_unaligned_le16(queue_group->iq_id[AIO_PATH], | |
4407 | &request.data.change_operational_iq_properties.queue_id); | |
4408 | put_unaligned_le32(PQI_IQ_PROPERTY_IS_AIO_QUEUE, | |
4409 | &request.data.change_operational_iq_properties.vendor_specific); | |
4410 | ||
4411 | rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, | |
4412 | &response); | |
4413 | if (rc) { | |
4414 | dev_err(&ctrl_info->pci_dev->dev, | |
4415 | "error changing queue property\n"); | |
339faa81 | 4416 | return rc; |
6c223761 KB |
4417 | } |
4418 | ||
4419 | /* | |
4420 | * Create OQ (Outbound Queue - device to host queue). | |
4421 | */ | |
4422 | memset(&request, 0, sizeof(request)); | |
4423 | request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; | |
4424 | put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, | |
4425 | &request.header.iu_length); | |
4426 | request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ; | |
4427 | put_unaligned_le16(queue_group->oq_id, | |
4428 | &request.data.create_operational_oq.queue_id); | |
4429 | put_unaligned_le64((u64)queue_group->oq_element_array_bus_addr, | |
4430 | &request.data.create_operational_oq.element_array_addr); | |
4431 | put_unaligned_le64((u64)queue_group->oq_pi_bus_addr, | |
4432 | &request.data.create_operational_oq.pi_addr); | |
4433 | put_unaligned_le16(ctrl_info->num_elements_per_oq, | |
4434 | &request.data.create_operational_oq.num_elements); | |
4435 | put_unaligned_le16(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH / 16, | |
4436 | &request.data.create_operational_oq.element_length); | |
4437 | request.data.create_operational_oq.queue_protocol = PQI_PROTOCOL_SOP; | |
4438 | put_unaligned_le16(queue_group->int_msg_num, | |
4439 | &request.data.create_operational_oq.int_msg_num); | |
4440 | ||
4441 | rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, | |
4442 | &response); | |
4443 | if (rc) { | |
4444 | dev_err(&ctrl_info->pci_dev->dev, | |
4445 | "error creating outbound queue\n"); | |
339faa81 | 4446 | return rc; |
6c223761 KB |
4447 | } |
4448 | ||
4449 | queue_group->oq_ci = ctrl_info->iomem_base + | |
4450 | PQI_DEVICE_REGISTERS_OFFSET + | |
4451 | get_unaligned_le64( | |
4452 | &response.data.create_operational_oq.oq_ci_offset); | |
4453 | ||
6c223761 | 4454 | return 0; |
6c223761 KB |
4455 | } |
4456 | ||
4457 | static int pqi_create_queues(struct pqi_ctrl_info *ctrl_info) | |
4458 | { | |
4459 | int rc; | |
4460 | unsigned int i; | |
4461 | ||
4462 | rc = pqi_create_event_queue(ctrl_info); | |
4463 | if (rc) { | |
4464 | dev_err(&ctrl_info->pci_dev->dev, | |
4465 | "error creating event queue\n"); | |
4466 | return rc; | |
4467 | } | |
4468 | ||
4469 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
061ef06a | 4470 | rc = pqi_create_queue_group(ctrl_info, i); |
6c223761 KB |
4471 | if (rc) { |
4472 | dev_err(&ctrl_info->pci_dev->dev, | |
4473 | "error creating queue group number %u/%u\n", | |
4474 | i, ctrl_info->num_queue_groups); | |
4475 | return rc; | |
4476 | } | |
4477 | } | |
4478 | ||
4479 | return 0; | |
4480 | } | |
4481 | ||
4482 | #define PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH \ | |
4483 | (offsetof(struct pqi_event_config, descriptors) + \ | |
4484 | (PQI_MAX_EVENT_DESCRIPTORS * sizeof(struct pqi_event_descriptor))) | |
4485 | ||
6a50d6ad KB |
4486 | static int pqi_configure_events(struct pqi_ctrl_info *ctrl_info, |
4487 | bool enable_events) | |
6c223761 KB |
4488 | { |
4489 | int rc; | |
4490 | unsigned int i; | |
4491 | struct pqi_event_config *event_config; | |
6a50d6ad | 4492 | struct pqi_event_descriptor *event_descriptor; |
6c223761 KB |
4493 | struct pqi_general_management_request request; |
4494 | ||
4495 | event_config = kmalloc(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, | |
4496 | GFP_KERNEL); | |
4497 | if (!event_config) | |
4498 | return -ENOMEM; | |
4499 | ||
4500 | memset(&request, 0, sizeof(request)); | |
4501 | ||
4502 | request.header.iu_type = PQI_REQUEST_IU_REPORT_VENDOR_EVENT_CONFIG; | |
4503 | put_unaligned_le16(offsetof(struct pqi_general_management_request, | |
4504 | data.report_event_configuration.sg_descriptors[1]) - | |
4505 | PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length); | |
4506 | put_unaligned_le32(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, | |
4507 | &request.data.report_event_configuration.buffer_length); | |
4508 | ||
4509 | rc = pqi_map_single(ctrl_info->pci_dev, | |
4510 | request.data.report_event_configuration.sg_descriptors, | |
4511 | event_config, PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, | |
6917a9cc | 4512 | DMA_FROM_DEVICE); |
6c223761 KB |
4513 | if (rc) |
4514 | goto out; | |
4515 | ||
4516 | rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, | |
4517 | 0, NULL, NO_TIMEOUT); | |
4518 | ||
4519 | pqi_pci_unmap(ctrl_info->pci_dev, | |
4520 | request.data.report_event_configuration.sg_descriptors, 1, | |
6917a9cc | 4521 | DMA_FROM_DEVICE); |
6c223761 KB |
4522 | |
4523 | if (rc) | |
4524 | goto out; | |
4525 | ||
6a50d6ad KB |
4526 | for (i = 0; i < event_config->num_event_descriptors; i++) { |
4527 | event_descriptor = &event_config->descriptors[i]; | |
4528 | if (enable_events && | |
4529 | pqi_is_supported_event(event_descriptor->event_type)) | |
4530 | put_unaligned_le16(ctrl_info->event_queue.oq_id, | |
4531 | &event_descriptor->oq_id); | |
4532 | else | |
4533 | put_unaligned_le16(0, &event_descriptor->oq_id); | |
4534 | } | |
6c223761 KB |
4535 | |
4536 | memset(&request, 0, sizeof(request)); | |
4537 | ||
4538 | request.header.iu_type = PQI_REQUEST_IU_SET_VENDOR_EVENT_CONFIG; | |
4539 | put_unaligned_le16(offsetof(struct pqi_general_management_request, | |
4540 | data.report_event_configuration.sg_descriptors[1]) - | |
4541 | PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length); | |
4542 | put_unaligned_le32(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, | |
4543 | &request.data.report_event_configuration.buffer_length); | |
4544 | ||
4545 | rc = pqi_map_single(ctrl_info->pci_dev, | |
4546 | request.data.report_event_configuration.sg_descriptors, | |
4547 | event_config, PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, | |
6917a9cc | 4548 | DMA_TO_DEVICE); |
6c223761 KB |
4549 | if (rc) |
4550 | goto out; | |
4551 | ||
4552 | rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, | |
4553 | NULL, NO_TIMEOUT); | |
4554 | ||
4555 | pqi_pci_unmap(ctrl_info->pci_dev, | |
4556 | request.data.report_event_configuration.sg_descriptors, 1, | |
6917a9cc | 4557 | DMA_TO_DEVICE); |
6c223761 KB |
4558 | |
4559 | out: | |
4560 | kfree(event_config); | |
4561 | ||
4562 | return rc; | |
4563 | } | |
4564 | ||
6a50d6ad KB |
4565 | static inline int pqi_enable_events(struct pqi_ctrl_info *ctrl_info) |
4566 | { | |
4567 | return pqi_configure_events(ctrl_info, true); | |
4568 | } | |
4569 | ||
4570 | static inline int pqi_disable_events(struct pqi_ctrl_info *ctrl_info) | |
4571 | { | |
4572 | return pqi_configure_events(ctrl_info, false); | |
4573 | } | |
4574 | ||
6c223761 KB |
4575 | static void pqi_free_all_io_requests(struct pqi_ctrl_info *ctrl_info) |
4576 | { | |
4577 | unsigned int i; | |
4578 | struct device *dev; | |
4579 | size_t sg_chain_buffer_length; | |
4580 | struct pqi_io_request *io_request; | |
4581 | ||
4582 | if (!ctrl_info->io_request_pool) | |
4583 | return; | |
4584 | ||
4585 | dev = &ctrl_info->pci_dev->dev; | |
4586 | sg_chain_buffer_length = ctrl_info->sg_chain_buffer_length; | |
4587 | io_request = ctrl_info->io_request_pool; | |
4588 | ||
4589 | for (i = 0; i < ctrl_info->max_io_slots; i++) { | |
4590 | kfree(io_request->iu); | |
4591 | if (!io_request->sg_chain_buffer) | |
4592 | break; | |
4593 | dma_free_coherent(dev, sg_chain_buffer_length, | |
4594 | io_request->sg_chain_buffer, | |
4595 | io_request->sg_chain_buffer_dma_handle); | |
4596 | io_request++; | |
4597 | } | |
4598 | ||
4599 | kfree(ctrl_info->io_request_pool); | |
4600 | ctrl_info->io_request_pool = NULL; | |
4601 | } | |
4602 | ||
4603 | static inline int pqi_alloc_error_buffer(struct pqi_ctrl_info *ctrl_info) | |
4604 | { | |
4605 | ctrl_info->error_buffer = dma_zalloc_coherent(&ctrl_info->pci_dev->dev, | |
4606 | ctrl_info->error_buffer_length, | |
4607 | &ctrl_info->error_buffer_dma_handle, GFP_KERNEL); | |
4608 | ||
4609 | if (!ctrl_info->error_buffer) | |
4610 | return -ENOMEM; | |
4611 | ||
4612 | return 0; | |
4613 | } | |
4614 | ||
4615 | static int pqi_alloc_io_resources(struct pqi_ctrl_info *ctrl_info) | |
4616 | { | |
4617 | unsigned int i; | |
4618 | void *sg_chain_buffer; | |
4619 | size_t sg_chain_buffer_length; | |
4620 | dma_addr_t sg_chain_buffer_dma_handle; | |
4621 | struct device *dev; | |
4622 | struct pqi_io_request *io_request; | |
4623 | ||
6396bb22 KC |
4624 | ctrl_info->io_request_pool = |
4625 | kcalloc(ctrl_info->max_io_slots, | |
4626 | sizeof(ctrl_info->io_request_pool[0]), GFP_KERNEL); | |
6c223761 KB |
4627 | |
4628 | if (!ctrl_info->io_request_pool) { | |
4629 | dev_err(&ctrl_info->pci_dev->dev, | |
4630 | "failed to allocate I/O request pool\n"); | |
4631 | goto error; | |
4632 | } | |
4633 | ||
4634 | dev = &ctrl_info->pci_dev->dev; | |
4635 | sg_chain_buffer_length = ctrl_info->sg_chain_buffer_length; | |
4636 | io_request = ctrl_info->io_request_pool; | |
4637 | ||
4638 | for (i = 0; i < ctrl_info->max_io_slots; i++) { | |
4639 | io_request->iu = | |
4640 | kmalloc(ctrl_info->max_inbound_iu_length, GFP_KERNEL); | |
4641 | ||
4642 | if (!io_request->iu) { | |
4643 | dev_err(&ctrl_info->pci_dev->dev, | |
4644 | "failed to allocate IU buffers\n"); | |
4645 | goto error; | |
4646 | } | |
4647 | ||
4648 | sg_chain_buffer = dma_alloc_coherent(dev, | |
4649 | sg_chain_buffer_length, &sg_chain_buffer_dma_handle, | |
4650 | GFP_KERNEL); | |
4651 | ||
4652 | if (!sg_chain_buffer) { | |
4653 | dev_err(&ctrl_info->pci_dev->dev, | |
4654 | "failed to allocate PQI scatter-gather chain buffers\n"); | |
4655 | goto error; | |
4656 | } | |
4657 | ||
4658 | io_request->index = i; | |
4659 | io_request->sg_chain_buffer = sg_chain_buffer; | |
4660 | io_request->sg_chain_buffer_dma_handle = | |
4661 | sg_chain_buffer_dma_handle; | |
4662 | io_request++; | |
4663 | } | |
4664 | ||
4665 | return 0; | |
4666 | ||
4667 | error: | |
4668 | pqi_free_all_io_requests(ctrl_info); | |
4669 | ||
4670 | return -ENOMEM; | |
4671 | } | |
4672 | ||
4673 | /* | |
4674 | * Calculate required resources that are sized based on max. outstanding | |
4675 | * requests and max. transfer size. | |
4676 | */ | |
4677 | ||
4678 | static void pqi_calculate_io_resources(struct pqi_ctrl_info *ctrl_info) | |
4679 | { | |
4680 | u32 max_transfer_size; | |
4681 | u32 max_sg_entries; | |
4682 | ||
4683 | ctrl_info->scsi_ml_can_queue = | |
4684 | ctrl_info->max_outstanding_requests - PQI_RESERVED_IO_SLOTS; | |
4685 | ctrl_info->max_io_slots = ctrl_info->max_outstanding_requests; | |
4686 | ||
4687 | ctrl_info->error_buffer_length = | |
4688 | ctrl_info->max_io_slots * PQI_ERROR_BUFFER_ELEMENT_LENGTH; | |
4689 | ||
d727a776 KB |
4690 | if (reset_devices) |
4691 | max_transfer_size = min(ctrl_info->max_transfer_size, | |
4692 | PQI_MAX_TRANSFER_SIZE_KDUMP); | |
4693 | else | |
4694 | max_transfer_size = min(ctrl_info->max_transfer_size, | |
4695 | PQI_MAX_TRANSFER_SIZE); | |
6c223761 KB |
4696 | |
4697 | max_sg_entries = max_transfer_size / PAGE_SIZE; | |
4698 | ||
4699 | /* +1 to cover when the buffer is not page-aligned. */ | |
4700 | max_sg_entries++; | |
4701 | ||
4702 | max_sg_entries = min(ctrl_info->max_sg_entries, max_sg_entries); | |
4703 | ||
4704 | max_transfer_size = (max_sg_entries - 1) * PAGE_SIZE; | |
4705 | ||
4706 | ctrl_info->sg_chain_buffer_length = | |
e1d213bd KB |
4707 | (max_sg_entries * sizeof(struct pqi_sg_descriptor)) + |
4708 | PQI_EXTRA_SGL_MEMORY; | |
6c223761 KB |
4709 | ctrl_info->sg_tablesize = max_sg_entries; |
4710 | ctrl_info->max_sectors = max_transfer_size / 512; | |
4711 | } | |
4712 | ||
4713 | static void pqi_calculate_queue_resources(struct pqi_ctrl_info *ctrl_info) | |
4714 | { | |
6c223761 KB |
4715 | int num_queue_groups; |
4716 | u16 num_elements_per_iq; | |
4717 | u16 num_elements_per_oq; | |
4718 | ||
d727a776 KB |
4719 | if (reset_devices) { |
4720 | num_queue_groups = 1; | |
4721 | } else { | |
4722 | int num_cpus; | |
4723 | int max_queue_groups; | |
4724 | ||
4725 | max_queue_groups = min(ctrl_info->max_inbound_queues / 2, | |
4726 | ctrl_info->max_outbound_queues - 1); | |
4727 | max_queue_groups = min(max_queue_groups, PQI_MAX_QUEUE_GROUPS); | |
6c223761 | 4728 | |
d727a776 KB |
4729 | num_cpus = num_online_cpus(); |
4730 | num_queue_groups = min(num_cpus, ctrl_info->max_msix_vectors); | |
4731 | num_queue_groups = min(num_queue_groups, max_queue_groups); | |
4732 | } | |
6c223761 KB |
4733 | |
4734 | ctrl_info->num_queue_groups = num_queue_groups; | |
061ef06a | 4735 | ctrl_info->max_hw_queue_index = num_queue_groups - 1; |
6c223761 | 4736 | |
77668f41 KB |
4737 | /* |
4738 | * Make sure that the max. inbound IU length is an even multiple | |
4739 | * of our inbound element length. | |
4740 | */ | |
4741 | ctrl_info->max_inbound_iu_length = | |
4742 | (ctrl_info->max_inbound_iu_length_per_firmware / | |
4743 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) * | |
4744 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH; | |
6c223761 KB |
4745 | |
4746 | num_elements_per_iq = | |
4747 | (ctrl_info->max_inbound_iu_length / | |
4748 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); | |
4749 | ||
4750 | /* Add one because one element in each queue is unusable. */ | |
4751 | num_elements_per_iq++; | |
4752 | ||
4753 | num_elements_per_iq = min(num_elements_per_iq, | |
4754 | ctrl_info->max_elements_per_iq); | |
4755 | ||
4756 | num_elements_per_oq = ((num_elements_per_iq - 1) * 2) + 1; | |
4757 | num_elements_per_oq = min(num_elements_per_oq, | |
4758 | ctrl_info->max_elements_per_oq); | |
4759 | ||
4760 | ctrl_info->num_elements_per_iq = num_elements_per_iq; | |
4761 | ctrl_info->num_elements_per_oq = num_elements_per_oq; | |
4762 | ||
4763 | ctrl_info->max_sg_per_iu = | |
4764 | ((ctrl_info->max_inbound_iu_length - | |
4765 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) / | |
4766 | sizeof(struct pqi_sg_descriptor)) + | |
4767 | PQI_MAX_EMBEDDED_SG_DESCRIPTORS; | |
4768 | } | |
4769 | ||
4770 | static inline void pqi_set_sg_descriptor( | |
4771 | struct pqi_sg_descriptor *sg_descriptor, struct scatterlist *sg) | |
4772 | { | |
4773 | u64 address = (u64)sg_dma_address(sg); | |
4774 | unsigned int length = sg_dma_len(sg); | |
4775 | ||
4776 | put_unaligned_le64(address, &sg_descriptor->address); | |
4777 | put_unaligned_le32(length, &sg_descriptor->length); | |
4778 | put_unaligned_le32(0, &sg_descriptor->flags); | |
4779 | } | |
4780 | ||
4781 | static int pqi_build_raid_sg_list(struct pqi_ctrl_info *ctrl_info, | |
4782 | struct pqi_raid_path_request *request, struct scsi_cmnd *scmd, | |
4783 | struct pqi_io_request *io_request) | |
4784 | { | |
4785 | int i; | |
4786 | u16 iu_length; | |
4787 | int sg_count; | |
4788 | bool chained; | |
4789 | unsigned int num_sg_in_iu; | |
4790 | unsigned int max_sg_per_iu; | |
4791 | struct scatterlist *sg; | |
4792 | struct pqi_sg_descriptor *sg_descriptor; | |
4793 | ||
4794 | sg_count = scsi_dma_map(scmd); | |
4795 | if (sg_count < 0) | |
4796 | return sg_count; | |
4797 | ||
4798 | iu_length = offsetof(struct pqi_raid_path_request, sg_descriptors) - | |
4799 | PQI_REQUEST_HEADER_LENGTH; | |
4800 | ||
4801 | if (sg_count == 0) | |
4802 | goto out; | |
4803 | ||
4804 | sg = scsi_sglist(scmd); | |
4805 | sg_descriptor = request->sg_descriptors; | |
4806 | max_sg_per_iu = ctrl_info->max_sg_per_iu - 1; | |
4807 | chained = false; | |
4808 | num_sg_in_iu = 0; | |
4809 | i = 0; | |
4810 | ||
4811 | while (1) { | |
4812 | pqi_set_sg_descriptor(sg_descriptor, sg); | |
4813 | if (!chained) | |
4814 | num_sg_in_iu++; | |
4815 | i++; | |
4816 | if (i == sg_count) | |
4817 | break; | |
4818 | sg_descriptor++; | |
4819 | if (i == max_sg_per_iu) { | |
4820 | put_unaligned_le64( | |
4821 | (u64)io_request->sg_chain_buffer_dma_handle, | |
4822 | &sg_descriptor->address); | |
4823 | put_unaligned_le32((sg_count - num_sg_in_iu) | |
4824 | * sizeof(*sg_descriptor), | |
4825 | &sg_descriptor->length); | |
4826 | put_unaligned_le32(CISS_SG_CHAIN, | |
4827 | &sg_descriptor->flags); | |
4828 | chained = true; | |
4829 | num_sg_in_iu++; | |
4830 | sg_descriptor = io_request->sg_chain_buffer; | |
4831 | } | |
4832 | sg = sg_next(sg); | |
4833 | } | |
4834 | ||
4835 | put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags); | |
4836 | request->partial = chained; | |
4837 | iu_length += num_sg_in_iu * sizeof(*sg_descriptor); | |
4838 | ||
4839 | out: | |
4840 | put_unaligned_le16(iu_length, &request->header.iu_length); | |
4841 | ||
4842 | return 0; | |
4843 | } | |
4844 | ||
4845 | static int pqi_build_aio_sg_list(struct pqi_ctrl_info *ctrl_info, | |
4846 | struct pqi_aio_path_request *request, struct scsi_cmnd *scmd, | |
4847 | struct pqi_io_request *io_request) | |
4848 | { | |
4849 | int i; | |
4850 | u16 iu_length; | |
4851 | int sg_count; | |
a60eec02 KB |
4852 | bool chained; |
4853 | unsigned int num_sg_in_iu; | |
4854 | unsigned int max_sg_per_iu; | |
6c223761 KB |
4855 | struct scatterlist *sg; |
4856 | struct pqi_sg_descriptor *sg_descriptor; | |
4857 | ||
4858 | sg_count = scsi_dma_map(scmd); | |
4859 | if (sg_count < 0) | |
4860 | return sg_count; | |
a60eec02 KB |
4861 | |
4862 | iu_length = offsetof(struct pqi_aio_path_request, sg_descriptors) - | |
4863 | PQI_REQUEST_HEADER_LENGTH; | |
4864 | num_sg_in_iu = 0; | |
4865 | ||
6c223761 KB |
4866 | if (sg_count == 0) |
4867 | goto out; | |
4868 | ||
a60eec02 KB |
4869 | sg = scsi_sglist(scmd); |
4870 | sg_descriptor = request->sg_descriptors; | |
4871 | max_sg_per_iu = ctrl_info->max_sg_per_iu - 1; | |
4872 | chained = false; | |
4873 | i = 0; | |
4874 | ||
4875 | while (1) { | |
4876 | pqi_set_sg_descriptor(sg_descriptor, sg); | |
4877 | if (!chained) | |
4878 | num_sg_in_iu++; | |
4879 | i++; | |
4880 | if (i == sg_count) | |
4881 | break; | |
4882 | sg_descriptor++; | |
4883 | if (i == max_sg_per_iu) { | |
4884 | put_unaligned_le64( | |
4885 | (u64)io_request->sg_chain_buffer_dma_handle, | |
4886 | &sg_descriptor->address); | |
4887 | put_unaligned_le32((sg_count - num_sg_in_iu) | |
4888 | * sizeof(*sg_descriptor), | |
4889 | &sg_descriptor->length); | |
4890 | put_unaligned_le32(CISS_SG_CHAIN, | |
4891 | &sg_descriptor->flags); | |
4892 | chained = true; | |
4893 | num_sg_in_iu++; | |
4894 | sg_descriptor = io_request->sg_chain_buffer; | |
6c223761 | 4895 | } |
a60eec02 | 4896 | sg = sg_next(sg); |
6c223761 KB |
4897 | } |
4898 | ||
a60eec02 KB |
4899 | put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags); |
4900 | request->partial = chained; | |
6c223761 | 4901 | iu_length += num_sg_in_iu * sizeof(*sg_descriptor); |
a60eec02 KB |
4902 | |
4903 | out: | |
6c223761 KB |
4904 | put_unaligned_le16(iu_length, &request->header.iu_length); |
4905 | request->num_sg_descriptors = num_sg_in_iu; | |
4906 | ||
4907 | return 0; | |
4908 | } | |
4909 | ||
4910 | static void pqi_raid_io_complete(struct pqi_io_request *io_request, | |
4911 | void *context) | |
4912 | { | |
4913 | struct scsi_cmnd *scmd; | |
4914 | ||
4915 | scmd = io_request->scmd; | |
4916 | pqi_free_io_request(io_request); | |
4917 | scsi_dma_unmap(scmd); | |
4918 | pqi_scsi_done(scmd); | |
4919 | } | |
4920 | ||
376fb880 KB |
4921 | static int pqi_raid_submit_scsi_cmd_with_io_request( |
4922 | struct pqi_ctrl_info *ctrl_info, struct pqi_io_request *io_request, | |
6c223761 KB |
4923 | struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, |
4924 | struct pqi_queue_group *queue_group) | |
4925 | { | |
4926 | int rc; | |
4927 | size_t cdb_length; | |
6c223761 KB |
4928 | struct pqi_raid_path_request *request; |
4929 | ||
6c223761 KB |
4930 | io_request->io_complete_callback = pqi_raid_io_complete; |
4931 | io_request->scmd = scmd; | |
4932 | ||
6c223761 KB |
4933 | request = io_request->iu; |
4934 | memset(request, 0, | |
4935 | offsetof(struct pqi_raid_path_request, sg_descriptors)); | |
4936 | ||
4937 | request->header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO; | |
4938 | put_unaligned_le32(scsi_bufflen(scmd), &request->buffer_length); | |
4939 | request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; | |
4940 | put_unaligned_le16(io_request->index, &request->request_id); | |
4941 | request->error_index = request->request_id; | |
4942 | memcpy(request->lun_number, device->scsi3addr, | |
4943 | sizeof(request->lun_number)); | |
4944 | ||
4945 | cdb_length = min_t(size_t, scmd->cmd_len, sizeof(request->cdb)); | |
4946 | memcpy(request->cdb, scmd->cmnd, cdb_length); | |
4947 | ||
4948 | switch (cdb_length) { | |
4949 | case 6: | |
4950 | case 10: | |
4951 | case 12: | |
4952 | case 16: | |
4953 | /* No bytes in the Additional CDB bytes field */ | |
4954 | request->additional_cdb_bytes_usage = | |
4955 | SOP_ADDITIONAL_CDB_BYTES_0; | |
4956 | break; | |
4957 | case 20: | |
4958 | /* 4 bytes in the Additional cdb field */ | |
4959 | request->additional_cdb_bytes_usage = | |
4960 | SOP_ADDITIONAL_CDB_BYTES_4; | |
4961 | break; | |
4962 | case 24: | |
4963 | /* 8 bytes in the Additional cdb field */ | |
4964 | request->additional_cdb_bytes_usage = | |
4965 | SOP_ADDITIONAL_CDB_BYTES_8; | |
4966 | break; | |
4967 | case 28: | |
4968 | /* 12 bytes in the Additional cdb field */ | |
4969 | request->additional_cdb_bytes_usage = | |
4970 | SOP_ADDITIONAL_CDB_BYTES_12; | |
4971 | break; | |
4972 | case 32: | |
4973 | default: | |
4974 | /* 16 bytes in the Additional cdb field */ | |
4975 | request->additional_cdb_bytes_usage = | |
4976 | SOP_ADDITIONAL_CDB_BYTES_16; | |
4977 | break; | |
4978 | } | |
4979 | ||
4980 | switch (scmd->sc_data_direction) { | |
4981 | case DMA_TO_DEVICE: | |
4982 | request->data_direction = SOP_READ_FLAG; | |
4983 | break; | |
4984 | case DMA_FROM_DEVICE: | |
4985 | request->data_direction = SOP_WRITE_FLAG; | |
4986 | break; | |
4987 | case DMA_NONE: | |
4988 | request->data_direction = SOP_NO_DIRECTION_FLAG; | |
4989 | break; | |
4990 | case DMA_BIDIRECTIONAL: | |
4991 | request->data_direction = SOP_BIDIRECTIONAL; | |
4992 | break; | |
4993 | default: | |
4994 | dev_err(&ctrl_info->pci_dev->dev, | |
4995 | "unknown data direction: %d\n", | |
4996 | scmd->sc_data_direction); | |
6c223761 KB |
4997 | break; |
4998 | } | |
4999 | ||
5000 | rc = pqi_build_raid_sg_list(ctrl_info, request, scmd, io_request); | |
5001 | if (rc) { | |
5002 | pqi_free_io_request(io_request); | |
5003 | return SCSI_MLQUEUE_HOST_BUSY; | |
5004 | } | |
5005 | ||
5006 | pqi_start_io(ctrl_info, queue_group, RAID_PATH, io_request); | |
5007 | ||
5008 | return 0; | |
5009 | } | |
5010 | ||
376fb880 KB |
5011 | static inline int pqi_raid_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info, |
5012 | struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, | |
5013 | struct pqi_queue_group *queue_group) | |
5014 | { | |
5015 | struct pqi_io_request *io_request; | |
5016 | ||
5017 | io_request = pqi_alloc_io_request(ctrl_info); | |
5018 | ||
5019 | return pqi_raid_submit_scsi_cmd_with_io_request(ctrl_info, io_request, | |
5020 | device, scmd, queue_group); | |
5021 | } | |
5022 | ||
5023 | static inline void pqi_schedule_bypass_retry(struct pqi_ctrl_info *ctrl_info) | |
5024 | { | |
5025 | if (!pqi_ctrl_blocked(ctrl_info)) | |
5026 | schedule_work(&ctrl_info->raid_bypass_retry_work); | |
5027 | } | |
5028 | ||
5029 | static bool pqi_raid_bypass_retry_needed(struct pqi_io_request *io_request) | |
5030 | { | |
5031 | struct scsi_cmnd *scmd; | |
03b288cf | 5032 | struct pqi_scsi_dev *device; |
376fb880 KB |
5033 | struct pqi_ctrl_info *ctrl_info; |
5034 | ||
5035 | if (!io_request->raid_bypass) | |
5036 | return false; | |
5037 | ||
5038 | scmd = io_request->scmd; | |
5039 | if ((scmd->result & 0xff) == SAM_STAT_GOOD) | |
5040 | return false; | |
5041 | if (host_byte(scmd->result) == DID_NO_CONNECT) | |
5042 | return false; | |
5043 | ||
03b288cf KB |
5044 | device = scmd->device->hostdata; |
5045 | if (pqi_device_offline(device)) | |
5046 | return false; | |
5047 | ||
376fb880 KB |
5048 | ctrl_info = shost_to_hba(scmd->device->host); |
5049 | if (pqi_ctrl_offline(ctrl_info)) | |
5050 | return false; | |
5051 | ||
5052 | return true; | |
5053 | } | |
5054 | ||
5055 | static inline void pqi_add_to_raid_bypass_retry_list( | |
5056 | struct pqi_ctrl_info *ctrl_info, | |
5057 | struct pqi_io_request *io_request, bool at_head) | |
5058 | { | |
5059 | unsigned long flags; | |
5060 | ||
5061 | spin_lock_irqsave(&ctrl_info->raid_bypass_retry_list_lock, flags); | |
5062 | if (at_head) | |
5063 | list_add(&io_request->request_list_entry, | |
5064 | &ctrl_info->raid_bypass_retry_list); | |
5065 | else | |
5066 | list_add_tail(&io_request->request_list_entry, | |
5067 | &ctrl_info->raid_bypass_retry_list); | |
5068 | spin_unlock_irqrestore(&ctrl_info->raid_bypass_retry_list_lock, flags); | |
5069 | } | |
5070 | ||
5071 | static void pqi_queued_raid_bypass_complete(struct pqi_io_request *io_request, | |
5072 | void *context) | |
5073 | { | |
5074 | struct scsi_cmnd *scmd; | |
5075 | ||
5076 | scmd = io_request->scmd; | |
5077 | pqi_free_io_request(io_request); | |
5078 | pqi_scsi_done(scmd); | |
5079 | } | |
5080 | ||
5081 | static void pqi_queue_raid_bypass_retry(struct pqi_io_request *io_request) | |
5082 | { | |
5083 | struct scsi_cmnd *scmd; | |
5084 | struct pqi_ctrl_info *ctrl_info; | |
5085 | ||
5086 | io_request->io_complete_callback = pqi_queued_raid_bypass_complete; | |
5087 | scmd = io_request->scmd; | |
5088 | scmd->result = 0; | |
5089 | ctrl_info = shost_to_hba(scmd->device->host); | |
5090 | ||
5091 | pqi_add_to_raid_bypass_retry_list(ctrl_info, io_request, false); | |
5092 | pqi_schedule_bypass_retry(ctrl_info); | |
5093 | } | |
5094 | ||
5095 | static int pqi_retry_raid_bypass(struct pqi_io_request *io_request) | |
5096 | { | |
5097 | struct scsi_cmnd *scmd; | |
5098 | struct pqi_scsi_dev *device; | |
5099 | struct pqi_ctrl_info *ctrl_info; | |
5100 | struct pqi_queue_group *queue_group; | |
5101 | ||
5102 | scmd = io_request->scmd; | |
5103 | device = scmd->device->hostdata; | |
5104 | if (pqi_device_in_reset(device)) { | |
5105 | pqi_free_io_request(io_request); | |
5106 | set_host_byte(scmd, DID_RESET); | |
5107 | pqi_scsi_done(scmd); | |
5108 | return 0; | |
5109 | } | |
5110 | ||
5111 | ctrl_info = shost_to_hba(scmd->device->host); | |
5112 | queue_group = io_request->queue_group; | |
5113 | ||
5114 | pqi_reinit_io_request(io_request); | |
5115 | ||
5116 | return pqi_raid_submit_scsi_cmd_with_io_request(ctrl_info, io_request, | |
5117 | device, scmd, queue_group); | |
5118 | } | |
5119 | ||
5120 | static inline struct pqi_io_request *pqi_next_queued_raid_bypass_request( | |
5121 | struct pqi_ctrl_info *ctrl_info) | |
5122 | { | |
5123 | unsigned long flags; | |
5124 | struct pqi_io_request *io_request; | |
5125 | ||
5126 | spin_lock_irqsave(&ctrl_info->raid_bypass_retry_list_lock, flags); | |
5127 | io_request = list_first_entry_or_null( | |
5128 | &ctrl_info->raid_bypass_retry_list, | |
5129 | struct pqi_io_request, request_list_entry); | |
5130 | if (io_request) | |
5131 | list_del(&io_request->request_list_entry); | |
5132 | spin_unlock_irqrestore(&ctrl_info->raid_bypass_retry_list_lock, flags); | |
5133 | ||
5134 | return io_request; | |
5135 | } | |
5136 | ||
5137 | static void pqi_retry_raid_bypass_requests(struct pqi_ctrl_info *ctrl_info) | |
5138 | { | |
5139 | int rc; | |
5140 | struct pqi_io_request *io_request; | |
5141 | ||
5142 | pqi_ctrl_busy(ctrl_info); | |
5143 | ||
5144 | while (1) { | |
5145 | if (pqi_ctrl_blocked(ctrl_info)) | |
5146 | break; | |
5147 | io_request = pqi_next_queued_raid_bypass_request(ctrl_info); | |
5148 | if (!io_request) | |
5149 | break; | |
5150 | rc = pqi_retry_raid_bypass(io_request); | |
5151 | if (rc) { | |
5152 | pqi_add_to_raid_bypass_retry_list(ctrl_info, io_request, | |
5153 | true); | |
5154 | pqi_schedule_bypass_retry(ctrl_info); | |
5155 | break; | |
5156 | } | |
5157 | } | |
5158 | ||
5159 | pqi_ctrl_unbusy(ctrl_info); | |
5160 | } | |
5161 | ||
5162 | static void pqi_raid_bypass_retry_worker(struct work_struct *work) | |
5163 | { | |
5164 | struct pqi_ctrl_info *ctrl_info; | |
5165 | ||
5166 | ctrl_info = container_of(work, struct pqi_ctrl_info, | |
5167 | raid_bypass_retry_work); | |
5168 | pqi_retry_raid_bypass_requests(ctrl_info); | |
5169 | } | |
5170 | ||
5f310425 KB |
5171 | static void pqi_clear_all_queued_raid_bypass_retries( |
5172 | struct pqi_ctrl_info *ctrl_info) | |
376fb880 KB |
5173 | { |
5174 | unsigned long flags; | |
376fb880 KB |
5175 | |
5176 | spin_lock_irqsave(&ctrl_info->raid_bypass_retry_list_lock, flags); | |
5f310425 | 5177 | INIT_LIST_HEAD(&ctrl_info->raid_bypass_retry_list); |
376fb880 KB |
5178 | spin_unlock_irqrestore(&ctrl_info->raid_bypass_retry_list_lock, flags); |
5179 | } | |
5180 | ||
6c223761 KB |
5181 | static void pqi_aio_io_complete(struct pqi_io_request *io_request, |
5182 | void *context) | |
5183 | { | |
5184 | struct scsi_cmnd *scmd; | |
5185 | ||
5186 | scmd = io_request->scmd; | |
5187 | scsi_dma_unmap(scmd); | |
5188 | if (io_request->status == -EAGAIN) | |
5189 | set_host_byte(scmd, DID_IMM_RETRY); | |
376fb880 KB |
5190 | else if (pqi_raid_bypass_retry_needed(io_request)) { |
5191 | pqi_queue_raid_bypass_retry(io_request); | |
5192 | return; | |
5193 | } | |
6c223761 KB |
5194 | pqi_free_io_request(io_request); |
5195 | pqi_scsi_done(scmd); | |
5196 | } | |
5197 | ||
5198 | static inline int pqi_aio_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info, | |
5199 | struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, | |
5200 | struct pqi_queue_group *queue_group) | |
5201 | { | |
5202 | return pqi_aio_submit_io(ctrl_info, scmd, device->aio_handle, | |
376fb880 | 5203 | scmd->cmnd, scmd->cmd_len, queue_group, NULL, false); |
6c223761 KB |
5204 | } |
5205 | ||
5206 | static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info, | |
5207 | struct scsi_cmnd *scmd, u32 aio_handle, u8 *cdb, | |
5208 | unsigned int cdb_length, struct pqi_queue_group *queue_group, | |
376fb880 | 5209 | struct pqi_encryption_info *encryption_info, bool raid_bypass) |
6c223761 KB |
5210 | { |
5211 | int rc; | |
5212 | struct pqi_io_request *io_request; | |
5213 | struct pqi_aio_path_request *request; | |
5214 | ||
5215 | io_request = pqi_alloc_io_request(ctrl_info); | |
5216 | io_request->io_complete_callback = pqi_aio_io_complete; | |
5217 | io_request->scmd = scmd; | |
376fb880 | 5218 | io_request->raid_bypass = raid_bypass; |
6c223761 KB |
5219 | |
5220 | request = io_request->iu; | |
5221 | memset(request, 0, | |
5222 | offsetof(struct pqi_raid_path_request, sg_descriptors)); | |
5223 | ||
5224 | request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_IO; | |
5225 | put_unaligned_le32(aio_handle, &request->nexus_id); | |
5226 | put_unaligned_le32(scsi_bufflen(scmd), &request->buffer_length); | |
5227 | request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; | |
5228 | put_unaligned_le16(io_request->index, &request->request_id); | |
5229 | request->error_index = request->request_id; | |
5230 | if (cdb_length > sizeof(request->cdb)) | |
5231 | cdb_length = sizeof(request->cdb); | |
5232 | request->cdb_length = cdb_length; | |
5233 | memcpy(request->cdb, cdb, cdb_length); | |
5234 | ||
5235 | switch (scmd->sc_data_direction) { | |
5236 | case DMA_TO_DEVICE: | |
5237 | request->data_direction = SOP_READ_FLAG; | |
5238 | break; | |
5239 | case DMA_FROM_DEVICE: | |
5240 | request->data_direction = SOP_WRITE_FLAG; | |
5241 | break; | |
5242 | case DMA_NONE: | |
5243 | request->data_direction = SOP_NO_DIRECTION_FLAG; | |
5244 | break; | |
5245 | case DMA_BIDIRECTIONAL: | |
5246 | request->data_direction = SOP_BIDIRECTIONAL; | |
5247 | break; | |
5248 | default: | |
5249 | dev_err(&ctrl_info->pci_dev->dev, | |
5250 | "unknown data direction: %d\n", | |
5251 | scmd->sc_data_direction); | |
6c223761 KB |
5252 | break; |
5253 | } | |
5254 | ||
5255 | if (encryption_info) { | |
5256 | request->encryption_enable = true; | |
5257 | put_unaligned_le16(encryption_info->data_encryption_key_index, | |
5258 | &request->data_encryption_key_index); | |
5259 | put_unaligned_le32(encryption_info->encrypt_tweak_lower, | |
5260 | &request->encrypt_tweak_lower); | |
5261 | put_unaligned_le32(encryption_info->encrypt_tweak_upper, | |
5262 | &request->encrypt_tweak_upper); | |
5263 | } | |
5264 | ||
5265 | rc = pqi_build_aio_sg_list(ctrl_info, request, scmd, io_request); | |
5266 | if (rc) { | |
5267 | pqi_free_io_request(io_request); | |
5268 | return SCSI_MLQUEUE_HOST_BUSY; | |
5269 | } | |
5270 | ||
5271 | pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request); | |
5272 | ||
5273 | return 0; | |
5274 | } | |
5275 | ||
061ef06a KB |
5276 | static inline u16 pqi_get_hw_queue(struct pqi_ctrl_info *ctrl_info, |
5277 | struct scsi_cmnd *scmd) | |
5278 | { | |
5279 | u16 hw_queue; | |
5280 | ||
5281 | hw_queue = blk_mq_unique_tag_to_hwq(blk_mq_unique_tag(scmd->request)); | |
5282 | if (hw_queue > ctrl_info->max_hw_queue_index) | |
5283 | hw_queue = 0; | |
5284 | ||
5285 | return hw_queue; | |
5286 | } | |
5287 | ||
7561a7e4 KB |
5288 | /* |
5289 | * This function gets called just before we hand the completed SCSI request | |
5290 | * back to the SML. | |
5291 | */ | |
5292 | ||
5293 | void pqi_prep_for_scsi_done(struct scsi_cmnd *scmd) | |
5294 | { | |
5295 | struct pqi_scsi_dev *device; | |
5296 | ||
1e46731e MR |
5297 | if (!scmd->device) { |
5298 | set_host_byte(scmd, DID_NO_CONNECT); | |
5299 | return; | |
5300 | } | |
5301 | ||
7561a7e4 | 5302 | device = scmd->device->hostdata; |
1e46731e MR |
5303 | if (!device) { |
5304 | set_host_byte(scmd, DID_NO_CONNECT); | |
5305 | return; | |
5306 | } | |
5307 | ||
7561a7e4 KB |
5308 | atomic_dec(&device->scsi_cmds_outstanding); |
5309 | } | |
5310 | ||
6c223761 | 5311 | static int pqi_scsi_queue_command(struct Scsi_Host *shost, |
7d81d2b8 | 5312 | struct scsi_cmnd *scmd) |
6c223761 KB |
5313 | { |
5314 | int rc; | |
5315 | struct pqi_ctrl_info *ctrl_info; | |
5316 | struct pqi_scsi_dev *device; | |
061ef06a | 5317 | u16 hw_queue; |
6c223761 KB |
5318 | struct pqi_queue_group *queue_group; |
5319 | bool raid_bypassed; | |
5320 | ||
5321 | device = scmd->device->hostdata; | |
6c223761 KB |
5322 | ctrl_info = shost_to_hba(shost); |
5323 | ||
1e46731e MR |
5324 | if (!device) { |
5325 | set_host_byte(scmd, DID_NO_CONNECT); | |
5326 | pqi_scsi_done(scmd); | |
5327 | return 0; | |
5328 | } | |
5329 | ||
7561a7e4 KB |
5330 | atomic_inc(&device->scsi_cmds_outstanding); |
5331 | ||
1e46731e MR |
5332 | if (pqi_ctrl_offline(ctrl_info) || pqi_device_in_remove(ctrl_info, |
5333 | device)) { | |
6c223761 KB |
5334 | set_host_byte(scmd, DID_NO_CONNECT); |
5335 | pqi_scsi_done(scmd); | |
5336 | return 0; | |
5337 | } | |
5338 | ||
7561a7e4 | 5339 | pqi_ctrl_busy(ctrl_info); |
4fd22c13 MR |
5340 | if (pqi_ctrl_blocked(ctrl_info) || pqi_device_in_reset(device) || |
5341 | pqi_ctrl_in_ofa(ctrl_info)) { | |
7561a7e4 KB |
5342 | rc = SCSI_MLQUEUE_HOST_BUSY; |
5343 | goto out; | |
5344 | } | |
5345 | ||
7d81d2b8 KB |
5346 | /* |
5347 | * This is necessary because the SML doesn't zero out this field during | |
5348 | * error recovery. | |
5349 | */ | |
5350 | scmd->result = 0; | |
5351 | ||
061ef06a KB |
5352 | hw_queue = pqi_get_hw_queue(ctrl_info, scmd); |
5353 | queue_group = &ctrl_info->queue_groups[hw_queue]; | |
6c223761 KB |
5354 | |
5355 | if (pqi_is_logical_device(device)) { | |
5356 | raid_bypassed = false; | |
588a63fe | 5357 | if (device->raid_bypass_enabled && |
57292b58 | 5358 | !blk_rq_is_passthrough(scmd->request)) { |
6c223761 KB |
5359 | rc = pqi_raid_bypass_submit_scsi_cmd(ctrl_info, device, |
5360 | scmd, queue_group); | |
376fb880 KB |
5361 | if (rc == 0 || rc == SCSI_MLQUEUE_HOST_BUSY) |
5362 | raid_bypassed = true; | |
6c223761 KB |
5363 | } |
5364 | if (!raid_bypassed) | |
5365 | rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, | |
5366 | queue_group); | |
5367 | } else { | |
5368 | if (device->aio_enabled) | |
5369 | rc = pqi_aio_submit_scsi_cmd(ctrl_info, device, scmd, | |
5370 | queue_group); | |
5371 | else | |
5372 | rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, | |
5373 | queue_group); | |
5374 | } | |
5375 | ||
7561a7e4 KB |
5376 | out: |
5377 | pqi_ctrl_unbusy(ctrl_info); | |
5378 | if (rc) | |
5379 | atomic_dec(&device->scsi_cmds_outstanding); | |
5380 | ||
6c223761 KB |
5381 | return rc; |
5382 | } | |
5383 | ||
7561a7e4 KB |
5384 | static int pqi_wait_until_queued_io_drained(struct pqi_ctrl_info *ctrl_info, |
5385 | struct pqi_queue_group *queue_group) | |
5386 | { | |
5387 | unsigned int path; | |
5388 | unsigned long flags; | |
5389 | bool list_is_empty; | |
5390 | ||
5391 | for (path = 0; path < 2; path++) { | |
5392 | while (1) { | |
5393 | spin_lock_irqsave( | |
5394 | &queue_group->submit_lock[path], flags); | |
5395 | list_is_empty = | |
5396 | list_empty(&queue_group->request_list[path]); | |
5397 | spin_unlock_irqrestore( | |
5398 | &queue_group->submit_lock[path], flags); | |
5399 | if (list_is_empty) | |
5400 | break; | |
5401 | pqi_check_ctrl_health(ctrl_info); | |
5402 | if (pqi_ctrl_offline(ctrl_info)) | |
5403 | return -ENXIO; | |
5404 | usleep_range(1000, 2000); | |
5405 | } | |
5406 | } | |
5407 | ||
5408 | return 0; | |
5409 | } | |
5410 | ||
5411 | static int pqi_wait_until_inbound_queues_empty(struct pqi_ctrl_info *ctrl_info) | |
5412 | { | |
5413 | int rc; | |
5414 | unsigned int i; | |
5415 | unsigned int path; | |
5416 | struct pqi_queue_group *queue_group; | |
5417 | pqi_index_t iq_pi; | |
5418 | pqi_index_t iq_ci; | |
5419 | ||
5420 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
5421 | queue_group = &ctrl_info->queue_groups[i]; | |
5422 | ||
5423 | rc = pqi_wait_until_queued_io_drained(ctrl_info, queue_group); | |
5424 | if (rc) | |
5425 | return rc; | |
5426 | ||
5427 | for (path = 0; path < 2; path++) { | |
5428 | iq_pi = queue_group->iq_pi_copy[path]; | |
5429 | ||
5430 | while (1) { | |
dac12fbc | 5431 | iq_ci = readl(queue_group->iq_ci[path]); |
7561a7e4 KB |
5432 | if (iq_ci == iq_pi) |
5433 | break; | |
5434 | pqi_check_ctrl_health(ctrl_info); | |
5435 | if (pqi_ctrl_offline(ctrl_info)) | |
5436 | return -ENXIO; | |
5437 | usleep_range(1000, 2000); | |
5438 | } | |
5439 | } | |
5440 | } | |
5441 | ||
5442 | return 0; | |
5443 | } | |
5444 | ||
5445 | static void pqi_fail_io_queued_for_device(struct pqi_ctrl_info *ctrl_info, | |
5446 | struct pqi_scsi_dev *device) | |
5447 | { | |
5448 | unsigned int i; | |
5449 | unsigned int path; | |
5450 | struct pqi_queue_group *queue_group; | |
5451 | unsigned long flags; | |
5452 | struct pqi_io_request *io_request; | |
5453 | struct pqi_io_request *next; | |
5454 | struct scsi_cmnd *scmd; | |
5455 | struct pqi_scsi_dev *scsi_device; | |
5456 | ||
5457 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
5458 | queue_group = &ctrl_info->queue_groups[i]; | |
5459 | ||
5460 | for (path = 0; path < 2; path++) { | |
5461 | spin_lock_irqsave( | |
5462 | &queue_group->submit_lock[path], flags); | |
5463 | ||
5464 | list_for_each_entry_safe(io_request, next, | |
5465 | &queue_group->request_list[path], | |
5466 | request_list_entry) { | |
5467 | scmd = io_request->scmd; | |
5468 | if (!scmd) | |
5469 | continue; | |
5470 | ||
5471 | scsi_device = scmd->device->hostdata; | |
5472 | if (scsi_device != device) | |
5473 | continue; | |
5474 | ||
5475 | list_del(&io_request->request_list_entry); | |
5476 | set_host_byte(scmd, DID_RESET); | |
5477 | pqi_scsi_done(scmd); | |
5478 | } | |
5479 | ||
5480 | spin_unlock_irqrestore( | |
5481 | &queue_group->submit_lock[path], flags); | |
5482 | } | |
5483 | } | |
5484 | } | |
5485 | ||
4fd22c13 MR |
5486 | static void pqi_fail_io_queued_for_all_devices(struct pqi_ctrl_info *ctrl_info) |
5487 | { | |
5488 | unsigned int i; | |
5489 | unsigned int path; | |
5490 | struct pqi_queue_group *queue_group; | |
5491 | unsigned long flags; | |
5492 | struct pqi_io_request *io_request; | |
5493 | struct pqi_io_request *next; | |
5494 | struct scsi_cmnd *scmd; | |
5495 | ||
5496 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
5497 | queue_group = &ctrl_info->queue_groups[i]; | |
5498 | ||
5499 | for (path = 0; path < 2; path++) { | |
5500 | spin_lock_irqsave(&queue_group->submit_lock[path], | |
5501 | flags); | |
5502 | ||
5503 | list_for_each_entry_safe(io_request, next, | |
5504 | &queue_group->request_list[path], | |
5505 | request_list_entry) { | |
5506 | ||
5507 | scmd = io_request->scmd; | |
5508 | if (!scmd) | |
5509 | continue; | |
5510 | ||
5511 | list_del(&io_request->request_list_entry); | |
5512 | set_host_byte(scmd, DID_RESET); | |
5513 | pqi_scsi_done(scmd); | |
5514 | } | |
5515 | ||
5516 | spin_unlock_irqrestore( | |
5517 | &queue_group->submit_lock[path], flags); | |
5518 | } | |
5519 | } | |
5520 | } | |
5521 | ||
061ef06a | 5522 | static int pqi_device_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info, |
1e46731e | 5523 | struct pqi_scsi_dev *device, unsigned long timeout_secs) |
061ef06a | 5524 | { |
1e46731e MR |
5525 | unsigned long timeout; |
5526 | ||
4fd22c13 | 5527 | timeout = (timeout_secs * PQI_HZ) + jiffies; |
1e46731e | 5528 | |
061ef06a KB |
5529 | while (atomic_read(&device->scsi_cmds_outstanding)) { |
5530 | pqi_check_ctrl_health(ctrl_info); | |
5531 | if (pqi_ctrl_offline(ctrl_info)) | |
5532 | return -ENXIO; | |
1e46731e MR |
5533 | if (timeout_secs != NO_TIMEOUT) { |
5534 | if (time_after(jiffies, timeout)) { | |
5535 | dev_err(&ctrl_info->pci_dev->dev, | |
5536 | "timed out waiting for pending IO\n"); | |
5537 | return -ETIMEDOUT; | |
5538 | } | |
5539 | } | |
061ef06a KB |
5540 | usleep_range(1000, 2000); |
5541 | } | |
5542 | ||
5543 | return 0; | |
5544 | } | |
5545 | ||
4fd22c13 MR |
5546 | static int pqi_ctrl_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info, |
5547 | unsigned long timeout_secs) | |
061ef06a KB |
5548 | { |
5549 | bool io_pending; | |
5550 | unsigned long flags; | |
4fd22c13 | 5551 | unsigned long timeout; |
061ef06a KB |
5552 | struct pqi_scsi_dev *device; |
5553 | ||
4fd22c13 | 5554 | timeout = (timeout_secs * PQI_HZ) + jiffies; |
061ef06a KB |
5555 | while (1) { |
5556 | io_pending = false; | |
5557 | ||
5558 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
5559 | list_for_each_entry(device, &ctrl_info->scsi_device_list, | |
5560 | scsi_device_list_entry) { | |
5561 | if (atomic_read(&device->scsi_cmds_outstanding)) { | |
5562 | io_pending = true; | |
5563 | break; | |
5564 | } | |
5565 | } | |
5566 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, | |
5567 | flags); | |
5568 | ||
5569 | if (!io_pending) | |
5570 | break; | |
5571 | ||
5572 | pqi_check_ctrl_health(ctrl_info); | |
5573 | if (pqi_ctrl_offline(ctrl_info)) | |
5574 | return -ENXIO; | |
5575 | ||
4fd22c13 MR |
5576 | if (timeout_secs != NO_TIMEOUT) { |
5577 | if (time_after(jiffies, timeout)) { | |
5578 | dev_err(&ctrl_info->pci_dev->dev, | |
5579 | "timed out waiting for pending IO\n"); | |
5580 | return -ETIMEDOUT; | |
5581 | } | |
5582 | } | |
061ef06a KB |
5583 | usleep_range(1000, 2000); |
5584 | } | |
5585 | ||
5586 | return 0; | |
5587 | } | |
5588 | ||
14bb215d KB |
5589 | static void pqi_lun_reset_complete(struct pqi_io_request *io_request, |
5590 | void *context) | |
6c223761 | 5591 | { |
14bb215d | 5592 | struct completion *waiting = context; |
6c223761 | 5593 | |
14bb215d KB |
5594 | complete(waiting); |
5595 | } | |
6c223761 | 5596 | |
14bb215d KB |
5597 | #define PQI_LUN_RESET_TIMEOUT_SECS 10 |
5598 | ||
5599 | static int pqi_wait_for_lun_reset_completion(struct pqi_ctrl_info *ctrl_info, | |
5600 | struct pqi_scsi_dev *device, struct completion *wait) | |
5601 | { | |
5602 | int rc; | |
14bb215d KB |
5603 | |
5604 | while (1) { | |
5605 | if (wait_for_completion_io_timeout(wait, | |
4fd22c13 | 5606 | PQI_LUN_RESET_TIMEOUT_SECS * PQI_HZ)) { |
14bb215d KB |
5607 | rc = 0; |
5608 | break; | |
6c223761 KB |
5609 | } |
5610 | ||
14bb215d KB |
5611 | pqi_check_ctrl_health(ctrl_info); |
5612 | if (pqi_ctrl_offline(ctrl_info)) { | |
4e8415e3 | 5613 | rc = -ENXIO; |
14bb215d KB |
5614 | break; |
5615 | } | |
6c223761 | 5616 | } |
6c223761 | 5617 | |
14bb215d | 5618 | return rc; |
6c223761 KB |
5619 | } |
5620 | ||
14bb215d | 5621 | static int pqi_lun_reset(struct pqi_ctrl_info *ctrl_info, |
6c223761 KB |
5622 | struct pqi_scsi_dev *device) |
5623 | { | |
5624 | int rc; | |
5625 | struct pqi_io_request *io_request; | |
5626 | DECLARE_COMPLETION_ONSTACK(wait); | |
5627 | struct pqi_task_management_request *request; | |
5628 | ||
6c223761 | 5629 | io_request = pqi_alloc_io_request(ctrl_info); |
14bb215d | 5630 | io_request->io_complete_callback = pqi_lun_reset_complete; |
6c223761 KB |
5631 | io_request->context = &wait; |
5632 | ||
5633 | request = io_request->iu; | |
5634 | memset(request, 0, sizeof(*request)); | |
5635 | ||
5636 | request->header.iu_type = PQI_REQUEST_IU_TASK_MANAGEMENT; | |
5637 | put_unaligned_le16(sizeof(*request) - PQI_REQUEST_HEADER_LENGTH, | |
5638 | &request->header.iu_length); | |
5639 | put_unaligned_le16(io_request->index, &request->request_id); | |
5640 | memcpy(request->lun_number, device->scsi3addr, | |
5641 | sizeof(request->lun_number)); | |
5642 | request->task_management_function = SOP_TASK_MANAGEMENT_LUN_RESET; | |
5643 | ||
5644 | pqi_start_io(ctrl_info, | |
5645 | &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH, | |
5646 | io_request); | |
5647 | ||
14bb215d KB |
5648 | rc = pqi_wait_for_lun_reset_completion(ctrl_info, device, &wait); |
5649 | if (rc == 0) | |
6c223761 | 5650 | rc = io_request->status; |
6c223761 KB |
5651 | |
5652 | pqi_free_io_request(io_request); | |
6c223761 KB |
5653 | |
5654 | return rc; | |
5655 | } | |
5656 | ||
3406384b MR |
5657 | #define PQI_LUN_RESET_RETRIES 3 |
5658 | #define PQI_LUN_RESET_RETRY_INTERVAL_MSECS 10000 | |
6c223761 KB |
5659 | /* Performs a reset at the LUN level. */ |
5660 | ||
4fd22c13 | 5661 | static int _pqi_device_reset(struct pqi_ctrl_info *ctrl_info, |
6c223761 KB |
5662 | struct pqi_scsi_dev *device) |
5663 | { | |
5664 | int rc; | |
3406384b | 5665 | unsigned int retries; |
4fd22c13 | 5666 | unsigned long timeout_secs; |
6c223761 | 5667 | |
3406384b MR |
5668 | for (retries = 0;;) { |
5669 | rc = pqi_lun_reset(ctrl_info, device); | |
5670 | if (rc != -EAGAIN || | |
5671 | ++retries > PQI_LUN_RESET_RETRIES) | |
5672 | break; | |
5673 | msleep(PQI_LUN_RESET_RETRY_INTERVAL_MSECS); | |
5674 | } | |
4fd22c13 MR |
5675 | timeout_secs = rc ? PQI_LUN_RESET_TIMEOUT_SECS : NO_TIMEOUT; |
5676 | ||
5677 | rc |= pqi_device_wait_for_pending_io(ctrl_info, device, timeout_secs); | |
6c223761 | 5678 | |
14bb215d | 5679 | return rc == 0 ? SUCCESS : FAILED; |
6c223761 KB |
5680 | } |
5681 | ||
4fd22c13 MR |
5682 | static int pqi_device_reset(struct pqi_ctrl_info *ctrl_info, |
5683 | struct pqi_scsi_dev *device) | |
5684 | { | |
5685 | int rc; | |
5686 | ||
5687 | mutex_lock(&ctrl_info->lun_reset_mutex); | |
5688 | ||
5689 | pqi_ctrl_block_requests(ctrl_info); | |
5690 | pqi_ctrl_wait_until_quiesced(ctrl_info); | |
5691 | pqi_fail_io_queued_for_device(ctrl_info, device); | |
5692 | rc = pqi_wait_until_inbound_queues_empty(ctrl_info); | |
5693 | pqi_device_reset_start(device); | |
5694 | pqi_ctrl_unblock_requests(ctrl_info); | |
5695 | ||
5696 | if (rc) | |
5697 | rc = FAILED; | |
5698 | else | |
5699 | rc = _pqi_device_reset(ctrl_info, device); | |
5700 | ||
5701 | pqi_device_reset_done(device); | |
5702 | ||
5703 | mutex_unlock(&ctrl_info->lun_reset_mutex); | |
5704 | return rc; | |
5705 | } | |
5706 | ||
6c223761 KB |
5707 | static int pqi_eh_device_reset_handler(struct scsi_cmnd *scmd) |
5708 | { | |
5709 | int rc; | |
7561a7e4 | 5710 | struct Scsi_Host *shost; |
6c223761 KB |
5711 | struct pqi_ctrl_info *ctrl_info; |
5712 | struct pqi_scsi_dev *device; | |
5713 | ||
7561a7e4 KB |
5714 | shost = scmd->device->host; |
5715 | ctrl_info = shost_to_hba(shost); | |
6c223761 KB |
5716 | device = scmd->device->hostdata; |
5717 | ||
5718 | dev_err(&ctrl_info->pci_dev->dev, | |
5719 | "resetting scsi %d:%d:%d:%d\n", | |
7561a7e4 | 5720 | shost->host_no, device->bus, device->target, device->lun); |
6c223761 | 5721 | |
7561a7e4 KB |
5722 | pqi_check_ctrl_health(ctrl_info); |
5723 | if (pqi_ctrl_offline(ctrl_info)) { | |
4fd22c13 MR |
5724 | dev_err(&ctrl_info->pci_dev->dev, |
5725 | "controller %u offlined - cannot send device reset\n", | |
5726 | ctrl_info->ctrl_id); | |
7561a7e4 KB |
5727 | rc = FAILED; |
5728 | goto out; | |
5729 | } | |
6c223761 | 5730 | |
4fd22c13 | 5731 | pqi_wait_until_ofa_finished(ctrl_info); |
7561a7e4 | 5732 | |
4fd22c13 | 5733 | rc = pqi_device_reset(ctrl_info, device); |
7561a7e4 | 5734 | out: |
6c223761 KB |
5735 | dev_err(&ctrl_info->pci_dev->dev, |
5736 | "reset of scsi %d:%d:%d:%d: %s\n", | |
7561a7e4 | 5737 | shost->host_no, device->bus, device->target, device->lun, |
6c223761 KB |
5738 | rc == SUCCESS ? "SUCCESS" : "FAILED"); |
5739 | ||
5740 | return rc; | |
5741 | } | |
5742 | ||
5743 | static int pqi_slave_alloc(struct scsi_device *sdev) | |
5744 | { | |
5745 | struct pqi_scsi_dev *device; | |
5746 | unsigned long flags; | |
5747 | struct pqi_ctrl_info *ctrl_info; | |
5748 | struct scsi_target *starget; | |
5749 | struct sas_rphy *rphy; | |
5750 | ||
5751 | ctrl_info = shost_to_hba(sdev->host); | |
5752 | ||
5753 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
5754 | ||
5755 | if (sdev_channel(sdev) == PQI_PHYSICAL_DEVICE_BUS) { | |
5756 | starget = scsi_target(sdev); | |
5757 | rphy = target_to_rphy(starget); | |
5758 | device = pqi_find_device_by_sas_rphy(ctrl_info, rphy); | |
5759 | if (device) { | |
5760 | device->target = sdev_id(sdev); | |
5761 | device->lun = sdev->lun; | |
5762 | device->target_lun_valid = true; | |
5763 | } | |
5764 | } else { | |
5765 | device = pqi_find_scsi_dev(ctrl_info, sdev_channel(sdev), | |
5766 | sdev_id(sdev), sdev->lun); | |
5767 | } | |
5768 | ||
94086f5b | 5769 | if (device) { |
6c223761 KB |
5770 | sdev->hostdata = device; |
5771 | device->sdev = sdev; | |
5772 | if (device->queue_depth) { | |
5773 | device->advertised_queue_depth = device->queue_depth; | |
5774 | scsi_change_queue_depth(sdev, | |
5775 | device->advertised_queue_depth); | |
5776 | } | |
b6e2ef67 DC |
5777 | if (pqi_is_logical_device(device)) |
5778 | pqi_disable_write_same(sdev); | |
2b447f81 DC |
5779 | else |
5780 | sdev->allow_restart = 1; | |
6c223761 KB |
5781 | } |
5782 | ||
5783 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); | |
5784 | ||
5785 | return 0; | |
5786 | } | |
5787 | ||
52198226 CH |
5788 | static int pqi_map_queues(struct Scsi_Host *shost) |
5789 | { | |
5790 | struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); | |
5791 | ||
ed76e329 JA |
5792 | return blk_mq_pci_map_queues(&shost->tag_set.map[0], |
5793 | ctrl_info->pci_dev, 0); | |
52198226 CH |
5794 | } |
5795 | ||
6c223761 KB |
5796 | static int pqi_getpciinfo_ioctl(struct pqi_ctrl_info *ctrl_info, |
5797 | void __user *arg) | |
5798 | { | |
5799 | struct pci_dev *pci_dev; | |
5800 | u32 subsystem_vendor; | |
5801 | u32 subsystem_device; | |
5802 | cciss_pci_info_struct pciinfo; | |
5803 | ||
5804 | if (!arg) | |
5805 | return -EINVAL; | |
5806 | ||
5807 | pci_dev = ctrl_info->pci_dev; | |
5808 | ||
5809 | pciinfo.domain = pci_domain_nr(pci_dev->bus); | |
5810 | pciinfo.bus = pci_dev->bus->number; | |
5811 | pciinfo.dev_fn = pci_dev->devfn; | |
5812 | subsystem_vendor = pci_dev->subsystem_vendor; | |
5813 | subsystem_device = pci_dev->subsystem_device; | |
5814 | pciinfo.board_id = ((subsystem_device << 16) & 0xffff0000) | | |
5815 | subsystem_vendor; | |
5816 | ||
5817 | if (copy_to_user(arg, &pciinfo, sizeof(pciinfo))) | |
5818 | return -EFAULT; | |
5819 | ||
5820 | return 0; | |
5821 | } | |
5822 | ||
5823 | static int pqi_getdrivver_ioctl(void __user *arg) | |
5824 | { | |
5825 | u32 version; | |
5826 | ||
5827 | if (!arg) | |
5828 | return -EINVAL; | |
5829 | ||
5830 | version = (DRIVER_MAJOR << 28) | (DRIVER_MINOR << 24) | | |
5831 | (DRIVER_RELEASE << 16) | DRIVER_REVISION; | |
5832 | ||
5833 | if (copy_to_user(arg, &version, sizeof(version))) | |
5834 | return -EFAULT; | |
5835 | ||
5836 | return 0; | |
5837 | } | |
5838 | ||
5839 | struct ciss_error_info { | |
5840 | u8 scsi_status; | |
5841 | int command_status; | |
5842 | size_t sense_data_length; | |
5843 | }; | |
5844 | ||
5845 | static void pqi_error_info_to_ciss(struct pqi_raid_error_info *pqi_error_info, | |
5846 | struct ciss_error_info *ciss_error_info) | |
5847 | { | |
5848 | int ciss_cmd_status; | |
5849 | size_t sense_data_length; | |
5850 | ||
5851 | switch (pqi_error_info->data_out_result) { | |
5852 | case PQI_DATA_IN_OUT_GOOD: | |
5853 | ciss_cmd_status = CISS_CMD_STATUS_SUCCESS; | |
5854 | break; | |
5855 | case PQI_DATA_IN_OUT_UNDERFLOW: | |
5856 | ciss_cmd_status = CISS_CMD_STATUS_DATA_UNDERRUN; | |
5857 | break; | |
5858 | case PQI_DATA_IN_OUT_BUFFER_OVERFLOW: | |
5859 | ciss_cmd_status = CISS_CMD_STATUS_DATA_OVERRUN; | |
5860 | break; | |
5861 | case PQI_DATA_IN_OUT_PROTOCOL_ERROR: | |
5862 | case PQI_DATA_IN_OUT_BUFFER_ERROR: | |
5863 | case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA: | |
5864 | case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE: | |
5865 | case PQI_DATA_IN_OUT_ERROR: | |
5866 | ciss_cmd_status = CISS_CMD_STATUS_PROTOCOL_ERROR; | |
5867 | break; | |
5868 | case PQI_DATA_IN_OUT_HARDWARE_ERROR: | |
5869 | case PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR: | |
5870 | case PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT: | |
5871 | case PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED: | |
5872 | case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED: | |
5873 | case PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED: | |
5874 | case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST: | |
5875 | case PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION: | |
5876 | case PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED: | |
5877 | case PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ: | |
5878 | ciss_cmd_status = CISS_CMD_STATUS_HARDWARE_ERROR; | |
5879 | break; | |
5880 | case PQI_DATA_IN_OUT_UNSOLICITED_ABORT: | |
5881 | ciss_cmd_status = CISS_CMD_STATUS_UNSOLICITED_ABORT; | |
5882 | break; | |
5883 | case PQI_DATA_IN_OUT_ABORTED: | |
5884 | ciss_cmd_status = CISS_CMD_STATUS_ABORTED; | |
5885 | break; | |
5886 | case PQI_DATA_IN_OUT_TIMEOUT: | |
5887 | ciss_cmd_status = CISS_CMD_STATUS_TIMEOUT; | |
5888 | break; | |
5889 | default: | |
5890 | ciss_cmd_status = CISS_CMD_STATUS_TARGET_STATUS; | |
5891 | break; | |
5892 | } | |
5893 | ||
5894 | sense_data_length = | |
5895 | get_unaligned_le16(&pqi_error_info->sense_data_length); | |
5896 | if (sense_data_length == 0) | |
5897 | sense_data_length = | |
5898 | get_unaligned_le16(&pqi_error_info->response_data_length); | |
5899 | if (sense_data_length) | |
5900 | if (sense_data_length > sizeof(pqi_error_info->data)) | |
5901 | sense_data_length = sizeof(pqi_error_info->data); | |
5902 | ||
5903 | ciss_error_info->scsi_status = pqi_error_info->status; | |
5904 | ciss_error_info->command_status = ciss_cmd_status; | |
5905 | ciss_error_info->sense_data_length = sense_data_length; | |
5906 | } | |
5907 | ||
5908 | static int pqi_passthru_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg) | |
5909 | { | |
5910 | int rc; | |
5911 | char *kernel_buffer = NULL; | |
5912 | u16 iu_length; | |
5913 | size_t sense_data_length; | |
5914 | IOCTL_Command_struct iocommand; | |
5915 | struct pqi_raid_path_request request; | |
5916 | struct pqi_raid_error_info pqi_error_info; | |
5917 | struct ciss_error_info ciss_error_info; | |
5918 | ||
5919 | if (pqi_ctrl_offline(ctrl_info)) | |
5920 | return -ENXIO; | |
5921 | if (!arg) | |
5922 | return -EINVAL; | |
5923 | if (!capable(CAP_SYS_RAWIO)) | |
5924 | return -EPERM; | |
5925 | if (copy_from_user(&iocommand, arg, sizeof(iocommand))) | |
5926 | return -EFAULT; | |
5927 | if (iocommand.buf_size < 1 && | |
5928 | iocommand.Request.Type.Direction != XFER_NONE) | |
5929 | return -EINVAL; | |
5930 | if (iocommand.Request.CDBLen > sizeof(request.cdb)) | |
5931 | return -EINVAL; | |
5932 | if (iocommand.Request.Type.Type != TYPE_CMD) | |
5933 | return -EINVAL; | |
5934 | ||
5935 | switch (iocommand.Request.Type.Direction) { | |
5936 | case XFER_NONE: | |
5937 | case XFER_WRITE: | |
5938 | case XFER_READ: | |
41555d54 | 5939 | case XFER_READ | XFER_WRITE: |
6c223761 KB |
5940 | break; |
5941 | default: | |
5942 | return -EINVAL; | |
5943 | } | |
5944 | ||
5945 | if (iocommand.buf_size > 0) { | |
5946 | kernel_buffer = kmalloc(iocommand.buf_size, GFP_KERNEL); | |
5947 | if (!kernel_buffer) | |
5948 | return -ENOMEM; | |
5949 | if (iocommand.Request.Type.Direction & XFER_WRITE) { | |
5950 | if (copy_from_user(kernel_buffer, iocommand.buf, | |
5951 | iocommand.buf_size)) { | |
5952 | rc = -EFAULT; | |
5953 | goto out; | |
5954 | } | |
5955 | } else { | |
5956 | memset(kernel_buffer, 0, iocommand.buf_size); | |
5957 | } | |
5958 | } | |
5959 | ||
5960 | memset(&request, 0, sizeof(request)); | |
5961 | ||
5962 | request.header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO; | |
5963 | iu_length = offsetof(struct pqi_raid_path_request, sg_descriptors) - | |
5964 | PQI_REQUEST_HEADER_LENGTH; | |
5965 | memcpy(request.lun_number, iocommand.LUN_info.LunAddrBytes, | |
5966 | sizeof(request.lun_number)); | |
5967 | memcpy(request.cdb, iocommand.Request.CDB, iocommand.Request.CDBLen); | |
5968 | request.additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0; | |
5969 | ||
5970 | switch (iocommand.Request.Type.Direction) { | |
5971 | case XFER_NONE: | |
5972 | request.data_direction = SOP_NO_DIRECTION_FLAG; | |
5973 | break; | |
5974 | case XFER_WRITE: | |
5975 | request.data_direction = SOP_WRITE_FLAG; | |
5976 | break; | |
5977 | case XFER_READ: | |
5978 | request.data_direction = SOP_READ_FLAG; | |
5979 | break; | |
41555d54 KB |
5980 | case XFER_READ | XFER_WRITE: |
5981 | request.data_direction = SOP_BIDIRECTIONAL; | |
5982 | break; | |
6c223761 KB |
5983 | } |
5984 | ||
5985 | request.task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; | |
5986 | ||
5987 | if (iocommand.buf_size > 0) { | |
5988 | put_unaligned_le32(iocommand.buf_size, &request.buffer_length); | |
5989 | ||
5990 | rc = pqi_map_single(ctrl_info->pci_dev, | |
5991 | &request.sg_descriptors[0], kernel_buffer, | |
6917a9cc | 5992 | iocommand.buf_size, DMA_BIDIRECTIONAL); |
6c223761 KB |
5993 | if (rc) |
5994 | goto out; | |
5995 | ||
5996 | iu_length += sizeof(request.sg_descriptors[0]); | |
5997 | } | |
5998 | ||
5999 | put_unaligned_le16(iu_length, &request.header.iu_length); | |
6000 | ||
6001 | rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, | |
6002 | PQI_SYNC_FLAGS_INTERRUPTABLE, &pqi_error_info, NO_TIMEOUT); | |
6003 | ||
6004 | if (iocommand.buf_size > 0) | |
6005 | pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, | |
6917a9cc | 6006 | DMA_BIDIRECTIONAL); |
6c223761 KB |
6007 | |
6008 | memset(&iocommand.error_info, 0, sizeof(iocommand.error_info)); | |
6009 | ||
6010 | if (rc == 0) { | |
6011 | pqi_error_info_to_ciss(&pqi_error_info, &ciss_error_info); | |
6012 | iocommand.error_info.ScsiStatus = ciss_error_info.scsi_status; | |
6013 | iocommand.error_info.CommandStatus = | |
6014 | ciss_error_info.command_status; | |
6015 | sense_data_length = ciss_error_info.sense_data_length; | |
6016 | if (sense_data_length) { | |
6017 | if (sense_data_length > | |
6018 | sizeof(iocommand.error_info.SenseInfo)) | |
6019 | sense_data_length = | |
6020 | sizeof(iocommand.error_info.SenseInfo); | |
6021 | memcpy(iocommand.error_info.SenseInfo, | |
6022 | pqi_error_info.data, sense_data_length); | |
6023 | iocommand.error_info.SenseLen = sense_data_length; | |
6024 | } | |
6025 | } | |
6026 | ||
6027 | if (copy_to_user(arg, &iocommand, sizeof(iocommand))) { | |
6028 | rc = -EFAULT; | |
6029 | goto out; | |
6030 | } | |
6031 | ||
6032 | if (rc == 0 && iocommand.buf_size > 0 && | |
6033 | (iocommand.Request.Type.Direction & XFER_READ)) { | |
6034 | if (copy_to_user(iocommand.buf, kernel_buffer, | |
6035 | iocommand.buf_size)) { | |
6036 | rc = -EFAULT; | |
6037 | } | |
6038 | } | |
6039 | ||
6040 | out: | |
6041 | kfree(kernel_buffer); | |
6042 | ||
6043 | return rc; | |
6044 | } | |
6045 | ||
6f4e626f NC |
6046 | static int pqi_ioctl(struct scsi_device *sdev, unsigned int cmd, |
6047 | void __user *arg) | |
6c223761 KB |
6048 | { |
6049 | int rc; | |
6050 | struct pqi_ctrl_info *ctrl_info; | |
6051 | ||
6052 | ctrl_info = shost_to_hba(sdev->host); | |
6053 | ||
4fd22c13 MR |
6054 | if (pqi_ctrl_in_ofa(ctrl_info)) |
6055 | return -EBUSY; | |
6056 | ||
6c223761 KB |
6057 | switch (cmd) { |
6058 | case CCISS_DEREGDISK: | |
6059 | case CCISS_REGNEWDISK: | |
6060 | case CCISS_REGNEWD: | |
6061 | rc = pqi_scan_scsi_devices(ctrl_info); | |
6062 | break; | |
6063 | case CCISS_GETPCIINFO: | |
6064 | rc = pqi_getpciinfo_ioctl(ctrl_info, arg); | |
6065 | break; | |
6066 | case CCISS_GETDRIVVER: | |
6067 | rc = pqi_getdrivver_ioctl(arg); | |
6068 | break; | |
6069 | case CCISS_PASSTHRU: | |
6070 | rc = pqi_passthru_ioctl(ctrl_info, arg); | |
6071 | break; | |
6072 | default: | |
6073 | rc = -EINVAL; | |
6074 | break; | |
6075 | } | |
6076 | ||
6077 | return rc; | |
6078 | } | |
6079 | ||
6080 | static ssize_t pqi_version_show(struct device *dev, | |
6081 | struct device_attribute *attr, char *buffer) | |
6082 | { | |
6083 | ssize_t count = 0; | |
6084 | struct Scsi_Host *shost; | |
6085 | struct pqi_ctrl_info *ctrl_info; | |
6086 | ||
6087 | shost = class_to_shost(dev); | |
6088 | ctrl_info = shost_to_hba(shost); | |
6089 | ||
6090 | count += snprintf(buffer + count, PAGE_SIZE - count, | |
6091 | " driver: %s\n", DRIVER_VERSION BUILD_TIMESTAMP); | |
6092 | ||
6093 | count += snprintf(buffer + count, PAGE_SIZE - count, | |
6094 | "firmware: %s\n", ctrl_info->firmware_version); | |
6095 | ||
6096 | return count; | |
6097 | } | |
6098 | ||
6099 | static ssize_t pqi_host_rescan_store(struct device *dev, | |
6100 | struct device_attribute *attr, const char *buffer, size_t count) | |
6101 | { | |
6102 | struct Scsi_Host *shost = class_to_shost(dev); | |
6103 | ||
6104 | pqi_scan_start(shost); | |
6105 | ||
6106 | return count; | |
6107 | } | |
6108 | ||
3c50976f KB |
6109 | static ssize_t pqi_lockup_action_show(struct device *dev, |
6110 | struct device_attribute *attr, char *buffer) | |
6111 | { | |
6112 | int count = 0; | |
6113 | unsigned int i; | |
6114 | ||
6115 | for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) { | |
6116 | if (pqi_lockup_actions[i].action == pqi_lockup_action) | |
6117 | count += snprintf(buffer + count, PAGE_SIZE - count, | |
6118 | "[%s] ", pqi_lockup_actions[i].name); | |
6119 | else | |
6120 | count += snprintf(buffer + count, PAGE_SIZE - count, | |
6121 | "%s ", pqi_lockup_actions[i].name); | |
6122 | } | |
6123 | ||
6124 | count += snprintf(buffer + count, PAGE_SIZE - count, "\n"); | |
6125 | ||
6126 | return count; | |
6127 | } | |
6128 | ||
6129 | static ssize_t pqi_lockup_action_store(struct device *dev, | |
6130 | struct device_attribute *attr, const char *buffer, size_t count) | |
6131 | { | |
6132 | unsigned int i; | |
6133 | char *action_name; | |
6134 | char action_name_buffer[32]; | |
6135 | ||
6136 | strlcpy(action_name_buffer, buffer, sizeof(action_name_buffer)); | |
6137 | action_name = strstrip(action_name_buffer); | |
6138 | ||
6139 | for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) { | |
6140 | if (strcmp(action_name, pqi_lockup_actions[i].name) == 0) { | |
6141 | pqi_lockup_action = pqi_lockup_actions[i].action; | |
6142 | return count; | |
6143 | } | |
6144 | } | |
6145 | ||
6146 | return -EINVAL; | |
6147 | } | |
6148 | ||
cbe0c7b1 KB |
6149 | static DEVICE_ATTR(version, 0444, pqi_version_show, NULL); |
6150 | static DEVICE_ATTR(rescan, 0200, NULL, pqi_host_rescan_store); | |
3c50976f KB |
6151 | static DEVICE_ATTR(lockup_action, 0644, |
6152 | pqi_lockup_action_show, pqi_lockup_action_store); | |
6c223761 KB |
6153 | |
6154 | static struct device_attribute *pqi_shost_attrs[] = { | |
6155 | &dev_attr_version, | |
6156 | &dev_attr_rescan, | |
3c50976f | 6157 | &dev_attr_lockup_action, |
6c223761 KB |
6158 | NULL |
6159 | }; | |
6160 | ||
cd128244 DC |
6161 | static ssize_t pqi_unique_id_show(struct device *dev, |
6162 | struct device_attribute *attr, char *buffer) | |
6163 | { | |
6164 | struct pqi_ctrl_info *ctrl_info; | |
6165 | struct scsi_device *sdev; | |
6166 | struct pqi_scsi_dev *device; | |
6167 | unsigned long flags; | |
6168 | unsigned char uid[16]; | |
6169 | ||
6170 | sdev = to_scsi_device(dev); | |
6171 | ctrl_info = shost_to_hba(sdev->host); | |
6172 | ||
6173 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
6174 | ||
6175 | device = sdev->hostdata; | |
6176 | if (!device) { | |
6177 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, | |
6178 | flags); | |
6179 | return -ENODEV; | |
6180 | } | |
6181 | memcpy(uid, device->unique_id, sizeof(uid)); | |
6182 | ||
6183 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); | |
6184 | ||
5995b236 MB |
6185 | return snprintf(buffer, PAGE_SIZE, |
6186 | "%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X\n", | |
6187 | uid[0], uid[1], uid[2], uid[3], | |
6188 | uid[4], uid[5], uid[6], uid[7], | |
6189 | uid[8], uid[9], uid[10], uid[11], | |
6190 | uid[12], uid[13], uid[14], uid[15]); | |
cd128244 DC |
6191 | } |
6192 | ||
6193 | static ssize_t pqi_lunid_show(struct device *dev, | |
6194 | struct device_attribute *attr, char *buffer) | |
6195 | { | |
6196 | struct pqi_ctrl_info *ctrl_info; | |
6197 | struct scsi_device *sdev; | |
6198 | struct pqi_scsi_dev *device; | |
6199 | unsigned long flags; | |
6200 | u8 lunid[8]; | |
6201 | ||
6202 | sdev = to_scsi_device(dev); | |
6203 | ctrl_info = shost_to_hba(sdev->host); | |
6204 | ||
6205 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
6206 | ||
6207 | device = sdev->hostdata; | |
6208 | if (!device) { | |
6209 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, | |
6210 | flags); | |
6211 | return -ENODEV; | |
6212 | } | |
6213 | memcpy(lunid, device->scsi3addr, sizeof(lunid)); | |
6214 | ||
6215 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); | |
6216 | ||
6217 | return snprintf(buffer, PAGE_SIZE, "0x%8phN\n", lunid); | |
6218 | } | |
6219 | ||
6220 | #define MAX_PATHS 8 | |
6221 | static ssize_t pqi_path_info_show(struct device *dev, | |
6222 | struct device_attribute *attr, char *buf) | |
6223 | { | |
6224 | struct pqi_ctrl_info *ctrl_info; | |
6225 | struct scsi_device *sdev; | |
6226 | struct pqi_scsi_dev *device; | |
6227 | unsigned long flags; | |
6228 | int i; | |
6229 | int output_len = 0; | |
6230 | u8 box; | |
6231 | u8 bay; | |
6232 | u8 path_map_index = 0; | |
6233 | char *active; | |
6234 | unsigned char phys_connector[2]; | |
6235 | ||
6236 | sdev = to_scsi_device(dev); | |
6237 | ctrl_info = shost_to_hba(sdev->host); | |
6238 | ||
6239 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
6240 | ||
6241 | device = sdev->hostdata; | |
6242 | if (!device) { | |
6243 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, | |
6244 | flags); | |
6245 | return -ENODEV; | |
6246 | } | |
6247 | ||
6248 | bay = device->bay; | |
6249 | for (i = 0; i < MAX_PATHS; i++) { | |
6250 | path_map_index = 1<<i; | |
6251 | if (i == device->active_path_index) | |
6252 | active = "Active"; | |
6253 | else if (device->path_map & path_map_index) | |
6254 | active = "Inactive"; | |
6255 | else | |
6256 | continue; | |
6257 | ||
6258 | output_len += scnprintf(buf + output_len, | |
6259 | PAGE_SIZE - output_len, | |
6260 | "[%d:%d:%d:%d] %20.20s ", | |
6261 | ctrl_info->scsi_host->host_no, | |
6262 | device->bus, device->target, | |
6263 | device->lun, | |
6264 | scsi_device_type(device->devtype)); | |
6265 | ||
6266 | if (device->devtype == TYPE_RAID || | |
6267 | pqi_is_logical_device(device)) | |
6268 | goto end_buffer; | |
6269 | ||
6270 | memcpy(&phys_connector, &device->phys_connector[i], | |
6271 | sizeof(phys_connector)); | |
6272 | if (phys_connector[0] < '0') | |
6273 | phys_connector[0] = '0'; | |
6274 | if (phys_connector[1] < '0') | |
6275 | phys_connector[1] = '0'; | |
6276 | ||
6277 | output_len += scnprintf(buf + output_len, | |
6278 | PAGE_SIZE - output_len, | |
6279 | "PORT: %.2s ", phys_connector); | |
6280 | ||
6281 | box = device->box[i]; | |
6282 | if (box != 0 && box != 0xFF) | |
6283 | output_len += scnprintf(buf + output_len, | |
6284 | PAGE_SIZE - output_len, | |
6285 | "BOX: %hhu ", box); | |
6286 | ||
6287 | if ((device->devtype == TYPE_DISK || | |
6288 | device->devtype == TYPE_ZBC) && | |
6289 | pqi_expose_device(device)) | |
6290 | output_len += scnprintf(buf + output_len, | |
6291 | PAGE_SIZE - output_len, | |
6292 | "BAY: %hhu ", bay); | |
6293 | ||
6294 | end_buffer: | |
6295 | output_len += scnprintf(buf + output_len, | |
6296 | PAGE_SIZE - output_len, | |
6297 | "%s\n", active); | |
6298 | } | |
6299 | ||
6300 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); | |
6301 | return output_len; | |
6302 | } | |
6303 | ||
6304 | ||
6c223761 KB |
6305 | static ssize_t pqi_sas_address_show(struct device *dev, |
6306 | struct device_attribute *attr, char *buffer) | |
6307 | { | |
6308 | struct pqi_ctrl_info *ctrl_info; | |
6309 | struct scsi_device *sdev; | |
6310 | struct pqi_scsi_dev *device; | |
6311 | unsigned long flags; | |
6312 | u64 sas_address; | |
6313 | ||
6314 | sdev = to_scsi_device(dev); | |
6315 | ctrl_info = shost_to_hba(sdev->host); | |
6316 | ||
6317 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
6318 | ||
6319 | device = sdev->hostdata; | |
6320 | if (pqi_is_logical_device(device)) { | |
6321 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, | |
6322 | flags); | |
6323 | return -ENODEV; | |
6324 | } | |
6325 | sas_address = device->sas_address; | |
6326 | ||
6327 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); | |
6328 | ||
6329 | return snprintf(buffer, PAGE_SIZE, "0x%016llx\n", sas_address); | |
6330 | } | |
6331 | ||
6332 | static ssize_t pqi_ssd_smart_path_enabled_show(struct device *dev, | |
6333 | struct device_attribute *attr, char *buffer) | |
6334 | { | |
6335 | struct pqi_ctrl_info *ctrl_info; | |
6336 | struct scsi_device *sdev; | |
6337 | struct pqi_scsi_dev *device; | |
6338 | unsigned long flags; | |
6339 | ||
6340 | sdev = to_scsi_device(dev); | |
6341 | ctrl_info = shost_to_hba(sdev->host); | |
6342 | ||
6343 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
6344 | ||
6345 | device = sdev->hostdata; | |
588a63fe | 6346 | buffer[0] = device->raid_bypass_enabled ? '1' : '0'; |
6c223761 KB |
6347 | buffer[1] = '\n'; |
6348 | buffer[2] = '\0'; | |
6349 | ||
6350 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); | |
6351 | ||
6352 | return 2; | |
6353 | } | |
6354 | ||
a9f93392 KB |
6355 | static ssize_t pqi_raid_level_show(struct device *dev, |
6356 | struct device_attribute *attr, char *buffer) | |
6357 | { | |
6358 | struct pqi_ctrl_info *ctrl_info; | |
6359 | struct scsi_device *sdev; | |
6360 | struct pqi_scsi_dev *device; | |
6361 | unsigned long flags; | |
6362 | char *raid_level; | |
6363 | ||
6364 | sdev = to_scsi_device(dev); | |
6365 | ctrl_info = shost_to_hba(sdev->host); | |
6366 | ||
6367 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
6368 | ||
6369 | device = sdev->hostdata; | |
6370 | ||
6371 | if (pqi_is_logical_device(device)) | |
6372 | raid_level = pqi_raid_level_to_string(device->raid_level); | |
6373 | else | |
6374 | raid_level = "N/A"; | |
6375 | ||
6376 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); | |
6377 | ||
6378 | return snprintf(buffer, PAGE_SIZE, "%s\n", raid_level); | |
6379 | } | |
6380 | ||
cd128244 DC |
6381 | static DEVICE_ATTR(lunid, 0444, pqi_lunid_show, NULL); |
6382 | static DEVICE_ATTR(unique_id, 0444, pqi_unique_id_show, NULL); | |
6383 | static DEVICE_ATTR(path_info, 0444, pqi_path_info_show, NULL); | |
cbe0c7b1 KB |
6384 | static DEVICE_ATTR(sas_address, 0444, pqi_sas_address_show, NULL); |
6385 | static DEVICE_ATTR(ssd_smart_path_enabled, 0444, | |
6c223761 | 6386 | pqi_ssd_smart_path_enabled_show, NULL); |
a9f93392 | 6387 | static DEVICE_ATTR(raid_level, 0444, pqi_raid_level_show, NULL); |
6c223761 KB |
6388 | |
6389 | static struct device_attribute *pqi_sdev_attrs[] = { | |
cd128244 DC |
6390 | &dev_attr_lunid, |
6391 | &dev_attr_unique_id, | |
6392 | &dev_attr_path_info, | |
6c223761 KB |
6393 | &dev_attr_sas_address, |
6394 | &dev_attr_ssd_smart_path_enabled, | |
a9f93392 | 6395 | &dev_attr_raid_level, |
6c223761 KB |
6396 | NULL |
6397 | }; | |
6398 | ||
6399 | static struct scsi_host_template pqi_driver_template = { | |
6400 | .module = THIS_MODULE, | |
6401 | .name = DRIVER_NAME_SHORT, | |
6402 | .proc_name = DRIVER_NAME_SHORT, | |
6403 | .queuecommand = pqi_scsi_queue_command, | |
6404 | .scan_start = pqi_scan_start, | |
6405 | .scan_finished = pqi_scan_finished, | |
6406 | .this_id = -1, | |
6c223761 KB |
6407 | .eh_device_reset_handler = pqi_eh_device_reset_handler, |
6408 | .ioctl = pqi_ioctl, | |
6409 | .slave_alloc = pqi_slave_alloc, | |
52198226 | 6410 | .map_queues = pqi_map_queues, |
6c223761 KB |
6411 | .sdev_attrs = pqi_sdev_attrs, |
6412 | .shost_attrs = pqi_shost_attrs, | |
6413 | }; | |
6414 | ||
6415 | static int pqi_register_scsi(struct pqi_ctrl_info *ctrl_info) | |
6416 | { | |
6417 | int rc; | |
6418 | struct Scsi_Host *shost; | |
6419 | ||
6420 | shost = scsi_host_alloc(&pqi_driver_template, sizeof(ctrl_info)); | |
6421 | if (!shost) { | |
6422 | dev_err(&ctrl_info->pci_dev->dev, | |
6423 | "scsi_host_alloc failed for controller %u\n", | |
6424 | ctrl_info->ctrl_id); | |
6425 | return -ENOMEM; | |
6426 | } | |
6427 | ||
6428 | shost->io_port = 0; | |
6429 | shost->n_io_port = 0; | |
6430 | shost->this_id = -1; | |
6431 | shost->max_channel = PQI_MAX_BUS; | |
6432 | shost->max_cmd_len = MAX_COMMAND_SIZE; | |
6433 | shost->max_lun = ~0; | |
6434 | shost->max_id = ~0; | |
6435 | shost->max_sectors = ctrl_info->max_sectors; | |
6436 | shost->can_queue = ctrl_info->scsi_ml_can_queue; | |
6437 | shost->cmd_per_lun = shost->can_queue; | |
6438 | shost->sg_tablesize = ctrl_info->sg_tablesize; | |
6439 | shost->transportt = pqi_sas_transport_template; | |
52198226 | 6440 | shost->irq = pci_irq_vector(ctrl_info->pci_dev, 0); |
6c223761 KB |
6441 | shost->unique_id = shost->irq; |
6442 | shost->nr_hw_queues = ctrl_info->num_queue_groups; | |
6443 | shost->hostdata[0] = (unsigned long)ctrl_info; | |
6444 | ||
6445 | rc = scsi_add_host(shost, &ctrl_info->pci_dev->dev); | |
6446 | if (rc) { | |
6447 | dev_err(&ctrl_info->pci_dev->dev, | |
6448 | "scsi_add_host failed for controller %u\n", | |
6449 | ctrl_info->ctrl_id); | |
6450 | goto free_host; | |
6451 | } | |
6452 | ||
6453 | rc = pqi_add_sas_host(shost, ctrl_info); | |
6454 | if (rc) { | |
6455 | dev_err(&ctrl_info->pci_dev->dev, | |
6456 | "add SAS host failed for controller %u\n", | |
6457 | ctrl_info->ctrl_id); | |
6458 | goto remove_host; | |
6459 | } | |
6460 | ||
6461 | ctrl_info->scsi_host = shost; | |
6462 | ||
6463 | return 0; | |
6464 | ||
6465 | remove_host: | |
6466 | scsi_remove_host(shost); | |
6467 | free_host: | |
6468 | scsi_host_put(shost); | |
6469 | ||
6470 | return rc; | |
6471 | } | |
6472 | ||
6473 | static void pqi_unregister_scsi(struct pqi_ctrl_info *ctrl_info) | |
6474 | { | |
6475 | struct Scsi_Host *shost; | |
6476 | ||
6477 | pqi_delete_sas_host(ctrl_info); | |
6478 | ||
6479 | shost = ctrl_info->scsi_host; | |
6480 | if (!shost) | |
6481 | return; | |
6482 | ||
6483 | scsi_remove_host(shost); | |
6484 | scsi_host_put(shost); | |
6485 | } | |
6486 | ||
336b6819 KB |
6487 | static int pqi_wait_for_pqi_reset_completion(struct pqi_ctrl_info *ctrl_info) |
6488 | { | |
6489 | int rc = 0; | |
6490 | struct pqi_device_registers __iomem *pqi_registers; | |
6491 | unsigned long timeout; | |
6492 | unsigned int timeout_msecs; | |
6493 | union pqi_reset_register reset_reg; | |
6c223761 | 6494 | |
336b6819 KB |
6495 | pqi_registers = ctrl_info->pqi_registers; |
6496 | timeout_msecs = readw(&pqi_registers->max_reset_timeout) * 100; | |
6497 | timeout = msecs_to_jiffies(timeout_msecs) + jiffies; | |
6498 | ||
6499 | while (1) { | |
6500 | msleep(PQI_RESET_POLL_INTERVAL_MSECS); | |
6501 | reset_reg.all_bits = readl(&pqi_registers->device_reset); | |
6502 | if (reset_reg.bits.reset_action == PQI_RESET_ACTION_COMPLETED) | |
6503 | break; | |
6504 | pqi_check_ctrl_health(ctrl_info); | |
6505 | if (pqi_ctrl_offline(ctrl_info)) { | |
6506 | rc = -ENXIO; | |
6507 | break; | |
6508 | } | |
6509 | if (time_after(jiffies, timeout)) { | |
6510 | rc = -ETIMEDOUT; | |
6511 | break; | |
6512 | } | |
6513 | } | |
6514 | ||
6515 | return rc; | |
6516 | } | |
6c223761 KB |
6517 | |
6518 | static int pqi_reset(struct pqi_ctrl_info *ctrl_info) | |
6519 | { | |
6520 | int rc; | |
336b6819 KB |
6521 | union pqi_reset_register reset_reg; |
6522 | ||
6523 | if (ctrl_info->pqi_reset_quiesce_supported) { | |
6524 | rc = sis_pqi_reset_quiesce(ctrl_info); | |
6525 | if (rc) { | |
6526 | dev_err(&ctrl_info->pci_dev->dev, | |
6527 | "PQI reset failed during quiesce with error %d\n", | |
6528 | rc); | |
6529 | return rc; | |
6530 | } | |
6531 | } | |
6c223761 | 6532 | |
336b6819 KB |
6533 | reset_reg.all_bits = 0; |
6534 | reset_reg.bits.reset_type = PQI_RESET_TYPE_HARD_RESET; | |
6535 | reset_reg.bits.reset_action = PQI_RESET_ACTION_RESET; | |
6c223761 | 6536 | |
336b6819 | 6537 | writel(reset_reg.all_bits, &ctrl_info->pqi_registers->device_reset); |
6c223761 | 6538 | |
336b6819 | 6539 | rc = pqi_wait_for_pqi_reset_completion(ctrl_info); |
6c223761 KB |
6540 | if (rc) |
6541 | dev_err(&ctrl_info->pci_dev->dev, | |
336b6819 | 6542 | "PQI reset failed with error %d\n", rc); |
6c223761 KB |
6543 | |
6544 | return rc; | |
6545 | } | |
6546 | ||
6547 | static int pqi_get_ctrl_firmware_version(struct pqi_ctrl_info *ctrl_info) | |
6548 | { | |
6549 | int rc; | |
6550 | struct bmic_identify_controller *identify; | |
6551 | ||
6552 | identify = kmalloc(sizeof(*identify), GFP_KERNEL); | |
6553 | if (!identify) | |
6554 | return -ENOMEM; | |
6555 | ||
6556 | rc = pqi_identify_controller(ctrl_info, identify); | |
6557 | if (rc) | |
6558 | goto out; | |
6559 | ||
6560 | memcpy(ctrl_info->firmware_version, identify->firmware_version, | |
6561 | sizeof(identify->firmware_version)); | |
6562 | ctrl_info->firmware_version[sizeof(identify->firmware_version)] = '\0'; | |
6563 | snprintf(ctrl_info->firmware_version + | |
6564 | strlen(ctrl_info->firmware_version), | |
6565 | sizeof(ctrl_info->firmware_version), | |
6566 | "-%u", get_unaligned_le16(&identify->firmware_build_number)); | |
6567 | ||
6568 | out: | |
6569 | kfree(identify); | |
6570 | ||
6571 | return rc; | |
6572 | } | |
6573 | ||
b212c251 KB |
6574 | struct pqi_config_table_section_info { |
6575 | struct pqi_ctrl_info *ctrl_info; | |
6576 | void *section; | |
6577 | u32 section_offset; | |
6578 | void __iomem *section_iomem_addr; | |
6579 | }; | |
6580 | ||
6581 | static inline bool pqi_is_firmware_feature_supported( | |
6582 | struct pqi_config_table_firmware_features *firmware_features, | |
6583 | unsigned int bit_position) | |
98f87667 | 6584 | { |
b212c251 | 6585 | unsigned int byte_index; |
98f87667 | 6586 | |
b212c251 | 6587 | byte_index = bit_position / BITS_PER_BYTE; |
98f87667 | 6588 | |
b212c251 KB |
6589 | if (byte_index >= le16_to_cpu(firmware_features->num_elements)) |
6590 | return false; | |
98f87667 | 6591 | |
b212c251 KB |
6592 | return firmware_features->features_supported[byte_index] & |
6593 | (1 << (bit_position % BITS_PER_BYTE)) ? true : false; | |
6594 | } | |
6595 | ||
6596 | static inline bool pqi_is_firmware_feature_enabled( | |
6597 | struct pqi_config_table_firmware_features *firmware_features, | |
6598 | void __iomem *firmware_features_iomem_addr, | |
6599 | unsigned int bit_position) | |
6600 | { | |
6601 | unsigned int byte_index; | |
6602 | u8 __iomem *features_enabled_iomem_addr; | |
6603 | ||
6604 | byte_index = (bit_position / BITS_PER_BYTE) + | |
6605 | (le16_to_cpu(firmware_features->num_elements) * 2); | |
6606 | ||
6607 | features_enabled_iomem_addr = firmware_features_iomem_addr + | |
6608 | offsetof(struct pqi_config_table_firmware_features, | |
6609 | features_supported) + byte_index; | |
6610 | ||
6611 | return *((__force u8 *)features_enabled_iomem_addr) & | |
6612 | (1 << (bit_position % BITS_PER_BYTE)) ? true : false; | |
6613 | } | |
6614 | ||
6615 | static inline void pqi_request_firmware_feature( | |
6616 | struct pqi_config_table_firmware_features *firmware_features, | |
6617 | unsigned int bit_position) | |
6618 | { | |
6619 | unsigned int byte_index; | |
6620 | ||
6621 | byte_index = (bit_position / BITS_PER_BYTE) + | |
6622 | le16_to_cpu(firmware_features->num_elements); | |
6623 | ||
6624 | firmware_features->features_supported[byte_index] |= | |
6625 | (1 << (bit_position % BITS_PER_BYTE)); | |
6626 | } | |
6627 | ||
6628 | static int pqi_config_table_update(struct pqi_ctrl_info *ctrl_info, | |
6629 | u16 first_section, u16 last_section) | |
6630 | { | |
6631 | struct pqi_vendor_general_request request; | |
6632 | ||
6633 | memset(&request, 0, sizeof(request)); | |
6634 | ||
6635 | request.header.iu_type = PQI_REQUEST_IU_VENDOR_GENERAL; | |
6636 | put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH, | |
6637 | &request.header.iu_length); | |
6638 | put_unaligned_le16(PQI_VENDOR_GENERAL_CONFIG_TABLE_UPDATE, | |
6639 | &request.function_code); | |
6640 | put_unaligned_le16(first_section, | |
6641 | &request.data.config_table_update.first_section); | |
6642 | put_unaligned_le16(last_section, | |
6643 | &request.data.config_table_update.last_section); | |
6644 | ||
6645 | return pqi_submit_raid_request_synchronous(ctrl_info, &request.header, | |
6646 | 0, NULL, NO_TIMEOUT); | |
6647 | } | |
6648 | ||
6649 | static int pqi_enable_firmware_features(struct pqi_ctrl_info *ctrl_info, | |
6650 | struct pqi_config_table_firmware_features *firmware_features, | |
6651 | void __iomem *firmware_features_iomem_addr) | |
6652 | { | |
6653 | void *features_requested; | |
6654 | void __iomem *features_requested_iomem_addr; | |
6655 | ||
6656 | features_requested = firmware_features->features_supported + | |
6657 | le16_to_cpu(firmware_features->num_elements); | |
6658 | ||
6659 | features_requested_iomem_addr = firmware_features_iomem_addr + | |
6660 | (features_requested - (void *)firmware_features); | |
6661 | ||
6662 | memcpy_toio(features_requested_iomem_addr, features_requested, | |
6663 | le16_to_cpu(firmware_features->num_elements)); | |
6664 | ||
6665 | return pqi_config_table_update(ctrl_info, | |
6666 | PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES, | |
6667 | PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES); | |
6668 | } | |
6669 | ||
6670 | struct pqi_firmware_feature { | |
6671 | char *feature_name; | |
6672 | unsigned int feature_bit; | |
6673 | bool supported; | |
6674 | bool enabled; | |
6675 | void (*feature_status)(struct pqi_ctrl_info *ctrl_info, | |
6676 | struct pqi_firmware_feature *firmware_feature); | |
6677 | }; | |
6678 | ||
6679 | static void pqi_firmware_feature_status(struct pqi_ctrl_info *ctrl_info, | |
6680 | struct pqi_firmware_feature *firmware_feature) | |
6681 | { | |
6682 | if (!firmware_feature->supported) { | |
6683 | dev_info(&ctrl_info->pci_dev->dev, "%s not supported by controller\n", | |
6684 | firmware_feature->feature_name); | |
6685 | return; | |
6686 | } | |
6687 | ||
6688 | if (firmware_feature->enabled) { | |
6689 | dev_info(&ctrl_info->pci_dev->dev, | |
6690 | "%s enabled\n", firmware_feature->feature_name); | |
6691 | return; | |
6692 | } | |
6693 | ||
6694 | dev_err(&ctrl_info->pci_dev->dev, "failed to enable %s\n", | |
6695 | firmware_feature->feature_name); | |
6696 | } | |
6697 | ||
6698 | static inline void pqi_firmware_feature_update(struct pqi_ctrl_info *ctrl_info, | |
6699 | struct pqi_firmware_feature *firmware_feature) | |
6700 | { | |
6701 | if (firmware_feature->feature_status) | |
6702 | firmware_feature->feature_status(ctrl_info, firmware_feature); | |
6703 | } | |
6704 | ||
6705 | static DEFINE_MUTEX(pqi_firmware_features_mutex); | |
6706 | ||
6707 | static struct pqi_firmware_feature pqi_firmware_features[] = { | |
6708 | { | |
6709 | .feature_name = "Online Firmware Activation", | |
6710 | .feature_bit = PQI_FIRMWARE_FEATURE_OFA, | |
6711 | .feature_status = pqi_firmware_feature_status, | |
6712 | }, | |
6713 | { | |
6714 | .feature_name = "Serial Management Protocol", | |
6715 | .feature_bit = PQI_FIRMWARE_FEATURE_SMP, | |
6716 | .feature_status = pqi_firmware_feature_status, | |
6717 | }, | |
4fd22c13 MR |
6718 | { |
6719 | .feature_name = "New Soft Reset Handshake", | |
6720 | .feature_bit = PQI_FIRMWARE_FEATURE_SOFT_RESET_HANDSHAKE, | |
6721 | .feature_status = pqi_firmware_feature_status, | |
6722 | }, | |
b212c251 KB |
6723 | }; |
6724 | ||
6725 | static void pqi_process_firmware_features( | |
6726 | struct pqi_config_table_section_info *section_info) | |
6727 | { | |
6728 | int rc; | |
6729 | struct pqi_ctrl_info *ctrl_info; | |
6730 | struct pqi_config_table_firmware_features *firmware_features; | |
6731 | void __iomem *firmware_features_iomem_addr; | |
6732 | unsigned int i; | |
6733 | unsigned int num_features_supported; | |
6734 | ||
6735 | ctrl_info = section_info->ctrl_info; | |
6736 | firmware_features = section_info->section; | |
6737 | firmware_features_iomem_addr = section_info->section_iomem_addr; | |
6738 | ||
6739 | for (i = 0, num_features_supported = 0; | |
6740 | i < ARRAY_SIZE(pqi_firmware_features); i++) { | |
6741 | if (pqi_is_firmware_feature_supported(firmware_features, | |
6742 | pqi_firmware_features[i].feature_bit)) { | |
6743 | pqi_firmware_features[i].supported = true; | |
6744 | num_features_supported++; | |
6745 | } else { | |
6746 | pqi_firmware_feature_update(ctrl_info, | |
6747 | &pqi_firmware_features[i]); | |
6748 | } | |
6749 | } | |
6750 | ||
6751 | if (num_features_supported == 0) | |
6752 | return; | |
6753 | ||
6754 | for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) { | |
6755 | if (!pqi_firmware_features[i].supported) | |
6756 | continue; | |
6757 | pqi_request_firmware_feature(firmware_features, | |
6758 | pqi_firmware_features[i].feature_bit); | |
6759 | } | |
6760 | ||
6761 | rc = pqi_enable_firmware_features(ctrl_info, firmware_features, | |
6762 | firmware_features_iomem_addr); | |
6763 | if (rc) { | |
6764 | dev_err(&ctrl_info->pci_dev->dev, | |
6765 | "failed to enable firmware features in PQI configuration table\n"); | |
6766 | for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) { | |
6767 | if (!pqi_firmware_features[i].supported) | |
6768 | continue; | |
6769 | pqi_firmware_feature_update(ctrl_info, | |
6770 | &pqi_firmware_features[i]); | |
6771 | } | |
6772 | return; | |
6773 | } | |
6774 | ||
4fd22c13 | 6775 | ctrl_info->soft_reset_handshake_supported = false; |
b212c251 KB |
6776 | for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) { |
6777 | if (!pqi_firmware_features[i].supported) | |
6778 | continue; | |
6779 | if (pqi_is_firmware_feature_enabled(firmware_features, | |
6780 | firmware_features_iomem_addr, | |
4fd22c13 | 6781 | pqi_firmware_features[i].feature_bit)) { |
b212c251 | 6782 | pqi_firmware_features[i].enabled = true; |
4fd22c13 MR |
6783 | if (pqi_firmware_features[i].feature_bit == |
6784 | PQI_FIRMWARE_FEATURE_SOFT_RESET_HANDSHAKE) | |
6785 | ctrl_info->soft_reset_handshake_supported = | |
6786 | true; | |
6787 | } | |
b212c251 KB |
6788 | pqi_firmware_feature_update(ctrl_info, |
6789 | &pqi_firmware_features[i]); | |
6790 | } | |
6791 | } | |
6792 | ||
6793 | static void pqi_init_firmware_features(void) | |
6794 | { | |
6795 | unsigned int i; | |
6796 | ||
6797 | for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) { | |
6798 | pqi_firmware_features[i].supported = false; | |
6799 | pqi_firmware_features[i].enabled = false; | |
6800 | } | |
6801 | } | |
6802 | ||
6803 | static void pqi_process_firmware_features_section( | |
6804 | struct pqi_config_table_section_info *section_info) | |
6805 | { | |
6806 | mutex_lock(&pqi_firmware_features_mutex); | |
6807 | pqi_init_firmware_features(); | |
6808 | pqi_process_firmware_features(section_info); | |
6809 | mutex_unlock(&pqi_firmware_features_mutex); | |
6810 | } | |
6811 | ||
98f87667 KB |
6812 | static int pqi_process_config_table(struct pqi_ctrl_info *ctrl_info) |
6813 | { | |
6814 | u32 table_length; | |
6815 | u32 section_offset; | |
6816 | void __iomem *table_iomem_addr; | |
6817 | struct pqi_config_table *config_table; | |
6818 | struct pqi_config_table_section_header *section; | |
b212c251 | 6819 | struct pqi_config_table_section_info section_info; |
98f87667 KB |
6820 | |
6821 | table_length = ctrl_info->config_table_length; | |
b212c251 KB |
6822 | if (table_length == 0) |
6823 | return 0; | |
98f87667 KB |
6824 | |
6825 | config_table = kmalloc(table_length, GFP_KERNEL); | |
6826 | if (!config_table) { | |
6827 | dev_err(&ctrl_info->pci_dev->dev, | |
d87d5474 | 6828 | "failed to allocate memory for PQI configuration table\n"); |
98f87667 KB |
6829 | return -ENOMEM; |
6830 | } | |
6831 | ||
6832 | /* | |
6833 | * Copy the config table contents from I/O memory space into the | |
6834 | * temporary buffer. | |
6835 | */ | |
6836 | table_iomem_addr = ctrl_info->iomem_base + | |
6837 | ctrl_info->config_table_offset; | |
6838 | memcpy_fromio(config_table, table_iomem_addr, table_length); | |
6839 | ||
b212c251 | 6840 | section_info.ctrl_info = ctrl_info; |
98f87667 KB |
6841 | section_offset = |
6842 | get_unaligned_le32(&config_table->first_section_offset); | |
6843 | ||
6844 | while (section_offset) { | |
6845 | section = (void *)config_table + section_offset; | |
6846 | ||
b212c251 KB |
6847 | section_info.section = section; |
6848 | section_info.section_offset = section_offset; | |
6849 | section_info.section_iomem_addr = | |
6850 | table_iomem_addr + section_offset; | |
6851 | ||
98f87667 | 6852 | switch (get_unaligned_le16(§ion->section_id)) { |
b212c251 KB |
6853 | case PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES: |
6854 | pqi_process_firmware_features_section(§ion_info); | |
6855 | break; | |
98f87667 | 6856 | case PQI_CONFIG_TABLE_SECTION_HEARTBEAT: |
5a259e32 KB |
6857 | if (pqi_disable_heartbeat) |
6858 | dev_warn(&ctrl_info->pci_dev->dev, | |
6859 | "heartbeat disabled by module parameter\n"); | |
6860 | else | |
6861 | ctrl_info->heartbeat_counter = | |
6862 | table_iomem_addr + | |
6863 | section_offset + | |
6864 | offsetof( | |
6865 | struct pqi_config_table_heartbeat, | |
6866 | heartbeat_counter); | |
98f87667 | 6867 | break; |
4fd22c13 MR |
6868 | case PQI_CONFIG_TABLE_SECTION_SOFT_RESET: |
6869 | ctrl_info->soft_reset_status = | |
6870 | table_iomem_addr + | |
6871 | section_offset + | |
6872 | offsetof(struct pqi_config_table_soft_reset, | |
6873 | soft_reset_status); | |
6874 | break; | |
98f87667 KB |
6875 | } |
6876 | ||
6877 | section_offset = | |
6878 | get_unaligned_le16(§ion->next_section_offset); | |
6879 | } | |
6880 | ||
6881 | kfree(config_table); | |
6882 | ||
6883 | return 0; | |
6884 | } | |
6885 | ||
162d7753 KB |
6886 | /* Switches the controller from PQI mode back into SIS mode. */ |
6887 | ||
6888 | static int pqi_revert_to_sis_mode(struct pqi_ctrl_info *ctrl_info) | |
6889 | { | |
6890 | int rc; | |
6891 | ||
061ef06a | 6892 | pqi_change_irq_mode(ctrl_info, IRQ_MODE_NONE); |
162d7753 KB |
6893 | rc = pqi_reset(ctrl_info); |
6894 | if (rc) | |
6895 | return rc; | |
4f078e24 KB |
6896 | rc = sis_reenable_sis_mode(ctrl_info); |
6897 | if (rc) { | |
6898 | dev_err(&ctrl_info->pci_dev->dev, | |
6899 | "re-enabling SIS mode failed with error %d\n", rc); | |
6900 | return rc; | |
6901 | } | |
162d7753 KB |
6902 | pqi_save_ctrl_mode(ctrl_info, SIS_MODE); |
6903 | ||
6904 | return 0; | |
6905 | } | |
6906 | ||
6907 | /* | |
6908 | * If the controller isn't already in SIS mode, this function forces it into | |
6909 | * SIS mode. | |
6910 | */ | |
6911 | ||
6912 | static int pqi_force_sis_mode(struct pqi_ctrl_info *ctrl_info) | |
ff6abb73 KB |
6913 | { |
6914 | if (!sis_is_firmware_running(ctrl_info)) | |
6915 | return -ENXIO; | |
6916 | ||
162d7753 KB |
6917 | if (pqi_get_ctrl_mode(ctrl_info) == SIS_MODE) |
6918 | return 0; | |
6919 | ||
6920 | if (sis_is_kernel_up(ctrl_info)) { | |
6921 | pqi_save_ctrl_mode(ctrl_info, SIS_MODE); | |
6922 | return 0; | |
ff6abb73 KB |
6923 | } |
6924 | ||
162d7753 | 6925 | return pqi_revert_to_sis_mode(ctrl_info); |
ff6abb73 KB |
6926 | } |
6927 | ||
6c223761 KB |
6928 | static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info) |
6929 | { | |
6930 | int rc; | |
6931 | ||
162d7753 KB |
6932 | rc = pqi_force_sis_mode(ctrl_info); |
6933 | if (rc) | |
6934 | return rc; | |
6c223761 KB |
6935 | |
6936 | /* | |
6937 | * Wait until the controller is ready to start accepting SIS | |
6938 | * commands. | |
6939 | */ | |
6940 | rc = sis_wait_for_ctrl_ready(ctrl_info); | |
8845fdfa | 6941 | if (rc) |
6c223761 | 6942 | return rc; |
6c223761 KB |
6943 | |
6944 | /* | |
6945 | * Get the controller properties. This allows us to determine | |
6946 | * whether or not it supports PQI mode. | |
6947 | */ | |
6948 | rc = sis_get_ctrl_properties(ctrl_info); | |
6949 | if (rc) { | |
6950 | dev_err(&ctrl_info->pci_dev->dev, | |
6951 | "error obtaining controller properties\n"); | |
6952 | return rc; | |
6953 | } | |
6954 | ||
6955 | rc = sis_get_pqi_capabilities(ctrl_info); | |
6956 | if (rc) { | |
6957 | dev_err(&ctrl_info->pci_dev->dev, | |
6958 | "error obtaining controller capabilities\n"); | |
6959 | return rc; | |
6960 | } | |
6961 | ||
d727a776 KB |
6962 | if (reset_devices) { |
6963 | if (ctrl_info->max_outstanding_requests > | |
6964 | PQI_MAX_OUTSTANDING_REQUESTS_KDUMP) | |
6965 | ctrl_info->max_outstanding_requests = | |
6966 | PQI_MAX_OUTSTANDING_REQUESTS_KDUMP; | |
6967 | } else { | |
6968 | if (ctrl_info->max_outstanding_requests > | |
6969 | PQI_MAX_OUTSTANDING_REQUESTS) | |
6970 | ctrl_info->max_outstanding_requests = | |
6971 | PQI_MAX_OUTSTANDING_REQUESTS; | |
6972 | } | |
6c223761 KB |
6973 | |
6974 | pqi_calculate_io_resources(ctrl_info); | |
6975 | ||
6976 | rc = pqi_alloc_error_buffer(ctrl_info); | |
6977 | if (rc) { | |
6978 | dev_err(&ctrl_info->pci_dev->dev, | |
6979 | "failed to allocate PQI error buffer\n"); | |
6980 | return rc; | |
6981 | } | |
6982 | ||
6983 | /* | |
6984 | * If the function we are about to call succeeds, the | |
6985 | * controller will transition from legacy SIS mode | |
6986 | * into PQI mode. | |
6987 | */ | |
6988 | rc = sis_init_base_struct_addr(ctrl_info); | |
6989 | if (rc) { | |
6990 | dev_err(&ctrl_info->pci_dev->dev, | |
6991 | "error initializing PQI mode\n"); | |
6992 | return rc; | |
6993 | } | |
6994 | ||
6995 | /* Wait for the controller to complete the SIS -> PQI transition. */ | |
6996 | rc = pqi_wait_for_pqi_mode_ready(ctrl_info); | |
6997 | if (rc) { | |
6998 | dev_err(&ctrl_info->pci_dev->dev, | |
6999 | "transition to PQI mode failed\n"); | |
7000 | return rc; | |
7001 | } | |
7002 | ||
7003 | /* From here on, we are running in PQI mode. */ | |
7004 | ctrl_info->pqi_mode_enabled = true; | |
ff6abb73 | 7005 | pqi_save_ctrl_mode(ctrl_info, PQI_MODE); |
6c223761 KB |
7006 | |
7007 | rc = pqi_alloc_admin_queues(ctrl_info); | |
7008 | if (rc) { | |
7009 | dev_err(&ctrl_info->pci_dev->dev, | |
d87d5474 | 7010 | "failed to allocate admin queues\n"); |
6c223761 KB |
7011 | return rc; |
7012 | } | |
7013 | ||
7014 | rc = pqi_create_admin_queues(ctrl_info); | |
7015 | if (rc) { | |
7016 | dev_err(&ctrl_info->pci_dev->dev, | |
7017 | "error creating admin queues\n"); | |
7018 | return rc; | |
7019 | } | |
7020 | ||
7021 | rc = pqi_report_device_capability(ctrl_info); | |
7022 | if (rc) { | |
7023 | dev_err(&ctrl_info->pci_dev->dev, | |
7024 | "obtaining device capability failed\n"); | |
7025 | return rc; | |
7026 | } | |
7027 | ||
7028 | rc = pqi_validate_device_capability(ctrl_info); | |
7029 | if (rc) | |
7030 | return rc; | |
7031 | ||
7032 | pqi_calculate_queue_resources(ctrl_info); | |
7033 | ||
7034 | rc = pqi_enable_msix_interrupts(ctrl_info); | |
7035 | if (rc) | |
7036 | return rc; | |
7037 | ||
7038 | if (ctrl_info->num_msix_vectors_enabled < ctrl_info->num_queue_groups) { | |
7039 | ctrl_info->max_msix_vectors = | |
7040 | ctrl_info->num_msix_vectors_enabled; | |
7041 | pqi_calculate_queue_resources(ctrl_info); | |
7042 | } | |
7043 | ||
7044 | rc = pqi_alloc_io_resources(ctrl_info); | |
7045 | if (rc) | |
7046 | return rc; | |
7047 | ||
7048 | rc = pqi_alloc_operational_queues(ctrl_info); | |
d87d5474 KB |
7049 | if (rc) { |
7050 | dev_err(&ctrl_info->pci_dev->dev, | |
7051 | "failed to allocate operational queues\n"); | |
6c223761 | 7052 | return rc; |
d87d5474 | 7053 | } |
6c223761 KB |
7054 | |
7055 | pqi_init_operational_queues(ctrl_info); | |
7056 | ||
7057 | rc = pqi_request_irqs(ctrl_info); | |
7058 | if (rc) | |
7059 | return rc; | |
7060 | ||
6c223761 KB |
7061 | rc = pqi_create_queues(ctrl_info); |
7062 | if (rc) | |
7063 | return rc; | |
7064 | ||
061ef06a KB |
7065 | pqi_change_irq_mode(ctrl_info, IRQ_MODE_MSIX); |
7066 | ||
7067 | ctrl_info->controller_online = true; | |
b212c251 KB |
7068 | |
7069 | rc = pqi_process_config_table(ctrl_info); | |
7070 | if (rc) | |
7071 | return rc; | |
7072 | ||
061ef06a | 7073 | pqi_start_heartbeat_timer(ctrl_info); |
6c223761 | 7074 | |
6a50d6ad | 7075 | rc = pqi_enable_events(ctrl_info); |
6c223761 KB |
7076 | if (rc) { |
7077 | dev_err(&ctrl_info->pci_dev->dev, | |
6a50d6ad | 7078 | "error enabling events\n"); |
6c223761 KB |
7079 | return rc; |
7080 | } | |
7081 | ||
6c223761 KB |
7082 | /* Register with the SCSI subsystem. */ |
7083 | rc = pqi_register_scsi(ctrl_info); | |
7084 | if (rc) | |
7085 | return rc; | |
7086 | ||
7087 | rc = pqi_get_ctrl_firmware_version(ctrl_info); | |
7088 | if (rc) { | |
7089 | dev_err(&ctrl_info->pci_dev->dev, | |
7090 | "error obtaining firmware version\n"); | |
7091 | return rc; | |
7092 | } | |
7093 | ||
171c2865 DC |
7094 | rc = pqi_set_diag_rescan(ctrl_info); |
7095 | if (rc) { | |
7096 | dev_err(&ctrl_info->pci_dev->dev, | |
7097 | "error enabling multi-lun rescan\n"); | |
7098 | return rc; | |
7099 | } | |
7100 | ||
6c223761 KB |
7101 | rc = pqi_write_driver_version_to_host_wellness(ctrl_info); |
7102 | if (rc) { | |
7103 | dev_err(&ctrl_info->pci_dev->dev, | |
7104 | "error updating host wellness\n"); | |
7105 | return rc; | |
7106 | } | |
7107 | ||
7108 | pqi_schedule_update_time_worker(ctrl_info); | |
7109 | ||
7110 | pqi_scan_scsi_devices(ctrl_info); | |
7111 | ||
7112 | return 0; | |
7113 | } | |
7114 | ||
061ef06a KB |
7115 | static void pqi_reinit_queues(struct pqi_ctrl_info *ctrl_info) |
7116 | { | |
7117 | unsigned int i; | |
7118 | struct pqi_admin_queues *admin_queues; | |
7119 | struct pqi_event_queue *event_queue; | |
7120 | ||
7121 | admin_queues = &ctrl_info->admin_queues; | |
7122 | admin_queues->iq_pi_copy = 0; | |
7123 | admin_queues->oq_ci_copy = 0; | |
dac12fbc | 7124 | writel(0, admin_queues->oq_pi); |
061ef06a KB |
7125 | |
7126 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
7127 | ctrl_info->queue_groups[i].iq_pi_copy[RAID_PATH] = 0; | |
7128 | ctrl_info->queue_groups[i].iq_pi_copy[AIO_PATH] = 0; | |
7129 | ctrl_info->queue_groups[i].oq_ci_copy = 0; | |
7130 | ||
dac12fbc KB |
7131 | writel(0, ctrl_info->queue_groups[i].iq_ci[RAID_PATH]); |
7132 | writel(0, ctrl_info->queue_groups[i].iq_ci[AIO_PATH]); | |
7133 | writel(0, ctrl_info->queue_groups[i].oq_pi); | |
061ef06a KB |
7134 | } |
7135 | ||
7136 | event_queue = &ctrl_info->event_queue; | |
dac12fbc | 7137 | writel(0, event_queue->oq_pi); |
061ef06a KB |
7138 | event_queue->oq_ci_copy = 0; |
7139 | } | |
7140 | ||
7141 | static int pqi_ctrl_init_resume(struct pqi_ctrl_info *ctrl_info) | |
7142 | { | |
7143 | int rc; | |
7144 | ||
7145 | rc = pqi_force_sis_mode(ctrl_info); | |
7146 | if (rc) | |
7147 | return rc; | |
7148 | ||
7149 | /* | |
7150 | * Wait until the controller is ready to start accepting SIS | |
7151 | * commands. | |
7152 | */ | |
7153 | rc = sis_wait_for_ctrl_ready_resume(ctrl_info); | |
7154 | if (rc) | |
7155 | return rc; | |
7156 | ||
4fd22c13 MR |
7157 | /* |
7158 | * Get the controller properties. This allows us to determine | |
7159 | * whether or not it supports PQI mode. | |
7160 | */ | |
7161 | rc = sis_get_ctrl_properties(ctrl_info); | |
7162 | if (rc) { | |
7163 | dev_err(&ctrl_info->pci_dev->dev, | |
7164 | "error obtaining controller properties\n"); | |
7165 | return rc; | |
7166 | } | |
7167 | ||
7168 | rc = sis_get_pqi_capabilities(ctrl_info); | |
7169 | if (rc) { | |
7170 | dev_err(&ctrl_info->pci_dev->dev, | |
7171 | "error obtaining controller capabilities\n"); | |
7172 | return rc; | |
7173 | } | |
7174 | ||
061ef06a KB |
7175 | /* |
7176 | * If the function we are about to call succeeds, the | |
7177 | * controller will transition from legacy SIS mode | |
7178 | * into PQI mode. | |
7179 | */ | |
7180 | rc = sis_init_base_struct_addr(ctrl_info); | |
7181 | if (rc) { | |
7182 | dev_err(&ctrl_info->pci_dev->dev, | |
7183 | "error initializing PQI mode\n"); | |
7184 | return rc; | |
7185 | } | |
7186 | ||
7187 | /* Wait for the controller to complete the SIS -> PQI transition. */ | |
7188 | rc = pqi_wait_for_pqi_mode_ready(ctrl_info); | |
7189 | if (rc) { | |
7190 | dev_err(&ctrl_info->pci_dev->dev, | |
7191 | "transition to PQI mode failed\n"); | |
7192 | return rc; | |
7193 | } | |
7194 | ||
7195 | /* From here on, we are running in PQI mode. */ | |
7196 | ctrl_info->pqi_mode_enabled = true; | |
7197 | pqi_save_ctrl_mode(ctrl_info, PQI_MODE); | |
7198 | ||
7199 | pqi_reinit_queues(ctrl_info); | |
7200 | ||
7201 | rc = pqi_create_admin_queues(ctrl_info); | |
7202 | if (rc) { | |
7203 | dev_err(&ctrl_info->pci_dev->dev, | |
7204 | "error creating admin queues\n"); | |
7205 | return rc; | |
7206 | } | |
7207 | ||
7208 | rc = pqi_create_queues(ctrl_info); | |
7209 | if (rc) | |
7210 | return rc; | |
7211 | ||
7212 | pqi_change_irq_mode(ctrl_info, IRQ_MODE_MSIX); | |
7213 | ||
7214 | ctrl_info->controller_online = true; | |
061ef06a KB |
7215 | pqi_ctrl_unblock_requests(ctrl_info); |
7216 | ||
4fd22c13 MR |
7217 | rc = pqi_process_config_table(ctrl_info); |
7218 | if (rc) | |
7219 | return rc; | |
7220 | ||
7221 | pqi_start_heartbeat_timer(ctrl_info); | |
7222 | ||
061ef06a KB |
7223 | rc = pqi_enable_events(ctrl_info); |
7224 | if (rc) { | |
7225 | dev_err(&ctrl_info->pci_dev->dev, | |
d87d5474 | 7226 | "error enabling events\n"); |
061ef06a KB |
7227 | return rc; |
7228 | } | |
7229 | ||
4fd22c13 MR |
7230 | rc = pqi_get_ctrl_firmware_version(ctrl_info); |
7231 | if (rc) { | |
7232 | dev_err(&ctrl_info->pci_dev->dev, | |
7233 | "error obtaining firmware version\n"); | |
7234 | return rc; | |
7235 | } | |
7236 | ||
171c2865 DC |
7237 | rc = pqi_set_diag_rescan(ctrl_info); |
7238 | if (rc) { | |
7239 | dev_err(&ctrl_info->pci_dev->dev, | |
7240 | "error enabling multi-lun rescan\n"); | |
7241 | return rc; | |
7242 | } | |
7243 | ||
061ef06a KB |
7244 | rc = pqi_write_driver_version_to_host_wellness(ctrl_info); |
7245 | if (rc) { | |
7246 | dev_err(&ctrl_info->pci_dev->dev, | |
7247 | "error updating host wellness\n"); | |
7248 | return rc; | |
7249 | } | |
7250 | ||
7251 | pqi_schedule_update_time_worker(ctrl_info); | |
7252 | ||
7253 | pqi_scan_scsi_devices(ctrl_info); | |
7254 | ||
7255 | return 0; | |
7256 | } | |
7257 | ||
a81ed5f3 KB |
7258 | static inline int pqi_set_pcie_completion_timeout(struct pci_dev *pci_dev, |
7259 | u16 timeout) | |
7260 | { | |
7261 | return pcie_capability_clear_and_set_word(pci_dev, PCI_EXP_DEVCTL2, | |
7262 | PCI_EXP_DEVCTL2_COMP_TIMEOUT, timeout); | |
7263 | } | |
7264 | ||
6c223761 KB |
7265 | static int pqi_pci_init(struct pqi_ctrl_info *ctrl_info) |
7266 | { | |
7267 | int rc; | |
7268 | u64 mask; | |
7269 | ||
7270 | rc = pci_enable_device(ctrl_info->pci_dev); | |
7271 | if (rc) { | |
7272 | dev_err(&ctrl_info->pci_dev->dev, | |
7273 | "failed to enable PCI device\n"); | |
7274 | return rc; | |
7275 | } | |
7276 | ||
7277 | if (sizeof(dma_addr_t) > 4) | |
7278 | mask = DMA_BIT_MASK(64); | |
7279 | else | |
7280 | mask = DMA_BIT_MASK(32); | |
7281 | ||
7282 | rc = dma_set_mask(&ctrl_info->pci_dev->dev, mask); | |
7283 | if (rc) { | |
7284 | dev_err(&ctrl_info->pci_dev->dev, "failed to set DMA mask\n"); | |
7285 | goto disable_device; | |
7286 | } | |
7287 | ||
7288 | rc = pci_request_regions(ctrl_info->pci_dev, DRIVER_NAME_SHORT); | |
7289 | if (rc) { | |
7290 | dev_err(&ctrl_info->pci_dev->dev, | |
7291 | "failed to obtain PCI resources\n"); | |
7292 | goto disable_device; | |
7293 | } | |
7294 | ||
7295 | ctrl_info->iomem_base = ioremap_nocache(pci_resource_start( | |
7296 | ctrl_info->pci_dev, 0), | |
7297 | sizeof(struct pqi_ctrl_registers)); | |
7298 | if (!ctrl_info->iomem_base) { | |
7299 | dev_err(&ctrl_info->pci_dev->dev, | |
7300 | "failed to map memory for controller registers\n"); | |
7301 | rc = -ENOMEM; | |
7302 | goto release_regions; | |
7303 | } | |
7304 | ||
a81ed5f3 KB |
7305 | #define PCI_EXP_COMP_TIMEOUT_65_TO_210_MS 0x6 |
7306 | ||
7307 | /* Increase the PCIe completion timeout. */ | |
7308 | rc = pqi_set_pcie_completion_timeout(ctrl_info->pci_dev, | |
7309 | PCI_EXP_COMP_TIMEOUT_65_TO_210_MS); | |
7310 | if (rc) { | |
7311 | dev_err(&ctrl_info->pci_dev->dev, | |
7312 | "failed to set PCIe completion timeout\n"); | |
7313 | goto release_regions; | |
7314 | } | |
7315 | ||
6c223761 KB |
7316 | /* Enable bus mastering. */ |
7317 | pci_set_master(ctrl_info->pci_dev); | |
7318 | ||
cbe0c7b1 KB |
7319 | ctrl_info->registers = ctrl_info->iomem_base; |
7320 | ctrl_info->pqi_registers = &ctrl_info->registers->pqi_registers; | |
7321 | ||
6c223761 KB |
7322 | pci_set_drvdata(ctrl_info->pci_dev, ctrl_info); |
7323 | ||
7324 | return 0; | |
7325 | ||
7326 | release_regions: | |
7327 | pci_release_regions(ctrl_info->pci_dev); | |
7328 | disable_device: | |
7329 | pci_disable_device(ctrl_info->pci_dev); | |
7330 | ||
7331 | return rc; | |
7332 | } | |
7333 | ||
7334 | static void pqi_cleanup_pci_init(struct pqi_ctrl_info *ctrl_info) | |
7335 | { | |
7336 | iounmap(ctrl_info->iomem_base); | |
7337 | pci_release_regions(ctrl_info->pci_dev); | |
cbe0c7b1 KB |
7338 | if (pci_is_enabled(ctrl_info->pci_dev)) |
7339 | pci_disable_device(ctrl_info->pci_dev); | |
6c223761 KB |
7340 | pci_set_drvdata(ctrl_info->pci_dev, NULL); |
7341 | } | |
7342 | ||
7343 | static struct pqi_ctrl_info *pqi_alloc_ctrl_info(int numa_node) | |
7344 | { | |
7345 | struct pqi_ctrl_info *ctrl_info; | |
7346 | ||
7347 | ctrl_info = kzalloc_node(sizeof(struct pqi_ctrl_info), | |
7348 | GFP_KERNEL, numa_node); | |
7349 | if (!ctrl_info) | |
7350 | return NULL; | |
7351 | ||
7352 | mutex_init(&ctrl_info->scan_mutex); | |
7561a7e4 | 7353 | mutex_init(&ctrl_info->lun_reset_mutex); |
4fd22c13 | 7354 | mutex_init(&ctrl_info->ofa_mutex); |
6c223761 KB |
7355 | |
7356 | INIT_LIST_HEAD(&ctrl_info->scsi_device_list); | |
7357 | spin_lock_init(&ctrl_info->scsi_device_list_lock); | |
7358 | ||
7359 | INIT_WORK(&ctrl_info->event_work, pqi_event_worker); | |
7360 | atomic_set(&ctrl_info->num_interrupts, 0); | |
7361 | ||
7362 | INIT_DELAYED_WORK(&ctrl_info->rescan_work, pqi_rescan_worker); | |
7363 | INIT_DELAYED_WORK(&ctrl_info->update_time_work, pqi_update_time_worker); | |
7364 | ||
74a0f573 | 7365 | timer_setup(&ctrl_info->heartbeat_timer, pqi_heartbeat_timer_handler, 0); |
5f310425 | 7366 | INIT_WORK(&ctrl_info->ctrl_offline_work, pqi_ctrl_offline_worker); |
98f87667 | 7367 | |
6c223761 KB |
7368 | sema_init(&ctrl_info->sync_request_sem, |
7369 | PQI_RESERVED_IO_SLOTS_SYNCHRONOUS_REQUESTS); | |
7561a7e4 | 7370 | init_waitqueue_head(&ctrl_info->block_requests_wait); |
6c223761 | 7371 | |
376fb880 KB |
7372 | INIT_LIST_HEAD(&ctrl_info->raid_bypass_retry_list); |
7373 | spin_lock_init(&ctrl_info->raid_bypass_retry_list_lock); | |
7374 | INIT_WORK(&ctrl_info->raid_bypass_retry_work, | |
7375 | pqi_raid_bypass_retry_worker); | |
7376 | ||
6c223761 | 7377 | ctrl_info->ctrl_id = atomic_inc_return(&pqi_controller_count) - 1; |
061ef06a | 7378 | ctrl_info->irq_mode = IRQ_MODE_NONE; |
6c223761 KB |
7379 | ctrl_info->max_msix_vectors = PQI_MAX_MSIX_VECTORS; |
7380 | ||
7381 | return ctrl_info; | |
7382 | } | |
7383 | ||
7384 | static inline void pqi_free_ctrl_info(struct pqi_ctrl_info *ctrl_info) | |
7385 | { | |
7386 | kfree(ctrl_info); | |
7387 | } | |
7388 | ||
7389 | static void pqi_free_interrupts(struct pqi_ctrl_info *ctrl_info) | |
7390 | { | |
98bf061b KB |
7391 | pqi_free_irqs(ctrl_info); |
7392 | pqi_disable_msix_interrupts(ctrl_info); | |
6c223761 KB |
7393 | } |
7394 | ||
7395 | static void pqi_free_ctrl_resources(struct pqi_ctrl_info *ctrl_info) | |
7396 | { | |
7397 | pqi_stop_heartbeat_timer(ctrl_info); | |
7398 | pqi_free_interrupts(ctrl_info); | |
7399 | if (ctrl_info->queue_memory_base) | |
7400 | dma_free_coherent(&ctrl_info->pci_dev->dev, | |
7401 | ctrl_info->queue_memory_length, | |
7402 | ctrl_info->queue_memory_base, | |
7403 | ctrl_info->queue_memory_base_dma_handle); | |
7404 | if (ctrl_info->admin_queue_memory_base) | |
7405 | dma_free_coherent(&ctrl_info->pci_dev->dev, | |
7406 | ctrl_info->admin_queue_memory_length, | |
7407 | ctrl_info->admin_queue_memory_base, | |
7408 | ctrl_info->admin_queue_memory_base_dma_handle); | |
7409 | pqi_free_all_io_requests(ctrl_info); | |
7410 | if (ctrl_info->error_buffer) | |
7411 | dma_free_coherent(&ctrl_info->pci_dev->dev, | |
7412 | ctrl_info->error_buffer_length, | |
7413 | ctrl_info->error_buffer, | |
7414 | ctrl_info->error_buffer_dma_handle); | |
7415 | if (ctrl_info->iomem_base) | |
7416 | pqi_cleanup_pci_init(ctrl_info); | |
7417 | pqi_free_ctrl_info(ctrl_info); | |
7418 | } | |
7419 | ||
7420 | static void pqi_remove_ctrl(struct pqi_ctrl_info *ctrl_info) | |
7421 | { | |
061ef06a KB |
7422 | pqi_cancel_rescan_worker(ctrl_info); |
7423 | pqi_cancel_update_time_worker(ctrl_info); | |
e57a1f9b KB |
7424 | pqi_remove_all_scsi_devices(ctrl_info); |
7425 | pqi_unregister_scsi(ctrl_info); | |
162d7753 KB |
7426 | if (ctrl_info->pqi_mode_enabled) |
7427 | pqi_revert_to_sis_mode(ctrl_info); | |
6c223761 KB |
7428 | pqi_free_ctrl_resources(ctrl_info); |
7429 | } | |
7430 | ||
4fd22c13 MR |
7431 | static void pqi_ofa_ctrl_quiesce(struct pqi_ctrl_info *ctrl_info) |
7432 | { | |
7433 | pqi_cancel_update_time_worker(ctrl_info); | |
7434 | pqi_cancel_rescan_worker(ctrl_info); | |
7435 | pqi_wait_until_lun_reset_finished(ctrl_info); | |
7436 | pqi_wait_until_scan_finished(ctrl_info); | |
7437 | pqi_ctrl_ofa_start(ctrl_info); | |
7438 | pqi_ctrl_block_requests(ctrl_info); | |
7439 | pqi_ctrl_wait_until_quiesced(ctrl_info); | |
7440 | pqi_ctrl_wait_for_pending_io(ctrl_info, PQI_PENDING_IO_TIMEOUT_SECS); | |
7441 | pqi_fail_io_queued_for_all_devices(ctrl_info); | |
7442 | pqi_wait_until_inbound_queues_empty(ctrl_info); | |
7443 | pqi_stop_heartbeat_timer(ctrl_info); | |
7444 | ctrl_info->pqi_mode_enabled = false; | |
7445 | pqi_save_ctrl_mode(ctrl_info, SIS_MODE); | |
7446 | } | |
7447 | ||
7448 | static void pqi_ofa_ctrl_unquiesce(struct pqi_ctrl_info *ctrl_info) | |
7449 | { | |
7450 | pqi_ofa_free_host_buffer(ctrl_info); | |
7451 | ctrl_info->pqi_mode_enabled = true; | |
7452 | pqi_save_ctrl_mode(ctrl_info, PQI_MODE); | |
7453 | ctrl_info->controller_online = true; | |
7454 | pqi_ctrl_unblock_requests(ctrl_info); | |
7455 | pqi_start_heartbeat_timer(ctrl_info); | |
7456 | pqi_schedule_update_time_worker(ctrl_info); | |
7457 | pqi_clear_soft_reset_status(ctrl_info, | |
7458 | PQI_SOFT_RESET_ABORT); | |
7459 | pqi_scan_scsi_devices(ctrl_info); | |
7460 | } | |
7461 | ||
7462 | static int pqi_ofa_alloc_mem(struct pqi_ctrl_info *ctrl_info, | |
7463 | u32 total_size, u32 chunk_size) | |
7464 | { | |
7465 | u32 sg_count; | |
7466 | u32 size; | |
7467 | int i; | |
7468 | struct pqi_sg_descriptor *mem_descriptor = NULL; | |
7469 | struct device *dev; | |
7470 | struct pqi_ofa_memory *ofap; | |
7471 | ||
7472 | dev = &ctrl_info->pci_dev->dev; | |
7473 | ||
7474 | sg_count = (total_size + chunk_size - 1); | |
e52c9e07 | 7475 | sg_count /= chunk_size; |
4fd22c13 MR |
7476 | |
7477 | ofap = ctrl_info->pqi_ofa_mem_virt_addr; | |
7478 | ||
7479 | if (sg_count*chunk_size < total_size) | |
7480 | goto out; | |
7481 | ||
7482 | ctrl_info->pqi_ofa_chunk_virt_addr = | |
7483 | kcalloc(sg_count, sizeof(void *), GFP_KERNEL); | |
7484 | if (!ctrl_info->pqi_ofa_chunk_virt_addr) | |
7485 | goto out; | |
7486 | ||
7487 | for (size = 0, i = 0; size < total_size; size += chunk_size, i++) { | |
7488 | dma_addr_t dma_handle; | |
7489 | ||
7490 | ctrl_info->pqi_ofa_chunk_virt_addr[i] = | |
7491 | dma_zalloc_coherent(dev, chunk_size, &dma_handle, | |
7492 | GFP_KERNEL); | |
7493 | ||
7494 | if (!ctrl_info->pqi_ofa_chunk_virt_addr[i]) | |
7495 | break; | |
7496 | ||
7497 | mem_descriptor = &ofap->sg_descriptor[i]; | |
7498 | put_unaligned_le64 ((u64) dma_handle, &mem_descriptor->address); | |
7499 | put_unaligned_le32 (chunk_size, &mem_descriptor->length); | |
7500 | } | |
7501 | ||
7502 | if (!size || size < total_size) | |
7503 | goto out_free_chunks; | |
7504 | ||
7505 | put_unaligned_le32(CISS_SG_LAST, &mem_descriptor->flags); | |
7506 | put_unaligned_le16(sg_count, &ofap->num_memory_descriptors); | |
7507 | put_unaligned_le32(size, &ofap->bytes_allocated); | |
7508 | ||
7509 | return 0; | |
7510 | ||
7511 | out_free_chunks: | |
7512 | while (--i >= 0) { | |
7513 | mem_descriptor = &ofap->sg_descriptor[i]; | |
7514 | dma_free_coherent(dev, chunk_size, | |
7515 | ctrl_info->pqi_ofa_chunk_virt_addr[i], | |
7516 | get_unaligned_le64(&mem_descriptor->address)); | |
7517 | } | |
7518 | kfree(ctrl_info->pqi_ofa_chunk_virt_addr); | |
7519 | ||
7520 | out: | |
7521 | put_unaligned_le32 (0, &ofap->bytes_allocated); | |
7522 | return -ENOMEM; | |
7523 | } | |
7524 | ||
7525 | static int pqi_ofa_alloc_host_buffer(struct pqi_ctrl_info *ctrl_info) | |
7526 | { | |
7527 | u32 total_size; | |
7528 | u32 min_chunk_size; | |
7529 | u32 chunk_sz; | |
7530 | ||
7531 | total_size = le32_to_cpu( | |
7532 | ctrl_info->pqi_ofa_mem_virt_addr->bytes_allocated); | |
7533 | min_chunk_size = total_size / PQI_OFA_MAX_SG_DESCRIPTORS; | |
7534 | ||
7535 | for (chunk_sz = total_size; chunk_sz >= min_chunk_size; chunk_sz /= 2) | |
7536 | if (!pqi_ofa_alloc_mem(ctrl_info, total_size, chunk_sz)) | |
7537 | return 0; | |
7538 | ||
7539 | return -ENOMEM; | |
7540 | } | |
7541 | ||
7542 | static void pqi_ofa_setup_host_buffer(struct pqi_ctrl_info *ctrl_info, | |
7543 | u32 bytes_requested) | |
7544 | { | |
7545 | struct pqi_ofa_memory *pqi_ofa_memory; | |
7546 | struct device *dev; | |
7547 | ||
7548 | dev = &ctrl_info->pci_dev->dev; | |
7549 | pqi_ofa_memory = dma_zalloc_coherent(dev, | |
7550 | PQI_OFA_MEMORY_DESCRIPTOR_LENGTH, | |
7551 | &ctrl_info->pqi_ofa_mem_dma_handle, | |
7552 | GFP_KERNEL); | |
7553 | ||
7554 | if (!pqi_ofa_memory) | |
7555 | return; | |
7556 | ||
7557 | put_unaligned_le16(PQI_OFA_VERSION, &pqi_ofa_memory->version); | |
7558 | memcpy(&pqi_ofa_memory->signature, PQI_OFA_SIGNATURE, | |
7559 | sizeof(pqi_ofa_memory->signature)); | |
7560 | pqi_ofa_memory->bytes_allocated = cpu_to_le32(bytes_requested); | |
7561 | ||
7562 | ctrl_info->pqi_ofa_mem_virt_addr = pqi_ofa_memory; | |
7563 | ||
7564 | if (pqi_ofa_alloc_host_buffer(ctrl_info) < 0) { | |
7565 | dev_err(dev, "Failed to allocate host buffer of size = %u", | |
7566 | bytes_requested); | |
7567 | } | |
7568 | } | |
7569 | ||
7570 | static void pqi_ofa_free_host_buffer(struct pqi_ctrl_info *ctrl_info) | |
7571 | { | |
7572 | int i; | |
7573 | struct pqi_sg_descriptor *mem_descriptor; | |
7574 | struct pqi_ofa_memory *ofap; | |
7575 | ||
7576 | ofap = ctrl_info->pqi_ofa_mem_virt_addr; | |
7577 | ||
7578 | if (!ofap) | |
7579 | return; | |
7580 | ||
7581 | if (!ofap->bytes_allocated) | |
7582 | goto out; | |
7583 | ||
7584 | mem_descriptor = ofap->sg_descriptor; | |
7585 | ||
7586 | for (i = 0; i < get_unaligned_le16(&ofap->num_memory_descriptors); | |
7587 | i++) { | |
7588 | dma_free_coherent(&ctrl_info->pci_dev->dev, | |
7589 | get_unaligned_le32(&mem_descriptor[i].length), | |
7590 | ctrl_info->pqi_ofa_chunk_virt_addr[i], | |
7591 | get_unaligned_le64(&mem_descriptor[i].address)); | |
7592 | } | |
7593 | kfree(ctrl_info->pqi_ofa_chunk_virt_addr); | |
7594 | ||
7595 | out: | |
7596 | dma_free_coherent(&ctrl_info->pci_dev->dev, | |
7597 | PQI_OFA_MEMORY_DESCRIPTOR_LENGTH, ofap, | |
7598 | ctrl_info->pqi_ofa_mem_dma_handle); | |
7599 | ctrl_info->pqi_ofa_mem_virt_addr = NULL; | |
7600 | } | |
7601 | ||
7602 | static int pqi_ofa_host_memory_update(struct pqi_ctrl_info *ctrl_info) | |
7603 | { | |
7604 | struct pqi_vendor_general_request request; | |
7605 | size_t size; | |
7606 | struct pqi_ofa_memory *ofap; | |
7607 | ||
7608 | memset(&request, 0, sizeof(request)); | |
7609 | ||
7610 | ofap = ctrl_info->pqi_ofa_mem_virt_addr; | |
7611 | ||
7612 | request.header.iu_type = PQI_REQUEST_IU_VENDOR_GENERAL; | |
7613 | put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH, | |
7614 | &request.header.iu_length); | |
7615 | put_unaligned_le16(PQI_VENDOR_GENERAL_HOST_MEMORY_UPDATE, | |
7616 | &request.function_code); | |
7617 | ||
7618 | if (ofap) { | |
7619 | size = offsetof(struct pqi_ofa_memory, sg_descriptor) + | |
7620 | get_unaligned_le16(&ofap->num_memory_descriptors) * | |
7621 | sizeof(struct pqi_sg_descriptor); | |
7622 | ||
7623 | put_unaligned_le64((u64)ctrl_info->pqi_ofa_mem_dma_handle, | |
7624 | &request.data.ofa_memory_allocation.buffer_address); | |
7625 | put_unaligned_le32(size, | |
7626 | &request.data.ofa_memory_allocation.buffer_length); | |
7627 | ||
7628 | } | |
7629 | ||
7630 | return pqi_submit_raid_request_synchronous(ctrl_info, &request.header, | |
7631 | 0, NULL, NO_TIMEOUT); | |
7632 | } | |
7633 | ||
7634 | #define PQI_POST_RESET_DELAY_B4_MSGU_READY 5000 | |
7635 | ||
7636 | static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info) | |
7637 | { | |
7638 | msleep(PQI_POST_RESET_DELAY_B4_MSGU_READY); | |
7639 | return pqi_ctrl_init_resume(ctrl_info); | |
7640 | } | |
7641 | ||
3c50976f KB |
7642 | static void pqi_perform_lockup_action(void) |
7643 | { | |
7644 | switch (pqi_lockup_action) { | |
7645 | case PANIC: | |
7646 | panic("FATAL: Smart Family Controller lockup detected"); | |
7647 | break; | |
7648 | case REBOOT: | |
7649 | emergency_restart(); | |
7650 | break; | |
7651 | case NONE: | |
7652 | default: | |
7653 | break; | |
7654 | } | |
7655 | } | |
7656 | ||
5f310425 KB |
7657 | static struct pqi_raid_error_info pqi_ctrl_offline_raid_error_info = { |
7658 | .data_out_result = PQI_DATA_IN_OUT_HARDWARE_ERROR, | |
7659 | .status = SAM_STAT_CHECK_CONDITION, | |
7660 | }; | |
7661 | ||
7662 | static void pqi_fail_all_outstanding_requests(struct pqi_ctrl_info *ctrl_info) | |
376fb880 KB |
7663 | { |
7664 | unsigned int i; | |
376fb880 | 7665 | struct pqi_io_request *io_request; |
376fb880 KB |
7666 | struct scsi_cmnd *scmd; |
7667 | ||
5f310425 KB |
7668 | for (i = 0; i < ctrl_info->max_io_slots; i++) { |
7669 | io_request = &ctrl_info->io_request_pool[i]; | |
7670 | if (atomic_read(&io_request->refcount) == 0) | |
7671 | continue; | |
376fb880 | 7672 | |
5f310425 KB |
7673 | scmd = io_request->scmd; |
7674 | if (scmd) { | |
7675 | set_host_byte(scmd, DID_NO_CONNECT); | |
7676 | } else { | |
7677 | io_request->status = -ENXIO; | |
7678 | io_request->error_info = | |
7679 | &pqi_ctrl_offline_raid_error_info; | |
376fb880 | 7680 | } |
5f310425 KB |
7681 | |
7682 | io_request->io_complete_callback(io_request, | |
7683 | io_request->context); | |
376fb880 KB |
7684 | } |
7685 | } | |
7686 | ||
5f310425 | 7687 | static void pqi_take_ctrl_offline_deferred(struct pqi_ctrl_info *ctrl_info) |
376fb880 | 7688 | { |
5f310425 KB |
7689 | pqi_perform_lockup_action(); |
7690 | pqi_stop_heartbeat_timer(ctrl_info); | |
7691 | pqi_free_interrupts(ctrl_info); | |
7692 | pqi_cancel_rescan_worker(ctrl_info); | |
7693 | pqi_cancel_update_time_worker(ctrl_info); | |
7694 | pqi_ctrl_wait_until_quiesced(ctrl_info); | |
7695 | pqi_fail_all_outstanding_requests(ctrl_info); | |
7696 | pqi_clear_all_queued_raid_bypass_retries(ctrl_info); | |
7697 | pqi_ctrl_unblock_requests(ctrl_info); | |
7698 | } | |
7699 | ||
7700 | static void pqi_ctrl_offline_worker(struct work_struct *work) | |
7701 | { | |
7702 | struct pqi_ctrl_info *ctrl_info; | |
7703 | ||
7704 | ctrl_info = container_of(work, struct pqi_ctrl_info, ctrl_offline_work); | |
7705 | pqi_take_ctrl_offline_deferred(ctrl_info); | |
376fb880 KB |
7706 | } |
7707 | ||
7708 | static void pqi_take_ctrl_offline(struct pqi_ctrl_info *ctrl_info) | |
7709 | { | |
5f310425 KB |
7710 | if (!ctrl_info->controller_online) |
7711 | return; | |
7712 | ||
376fb880 | 7713 | ctrl_info->controller_online = false; |
5f310425 KB |
7714 | ctrl_info->pqi_mode_enabled = false; |
7715 | pqi_ctrl_block_requests(ctrl_info); | |
5a259e32 KB |
7716 | if (!pqi_disable_ctrl_shutdown) |
7717 | sis_shutdown_ctrl(ctrl_info); | |
376fb880 KB |
7718 | pci_disable_device(ctrl_info->pci_dev); |
7719 | dev_err(&ctrl_info->pci_dev->dev, "controller offline\n"); | |
5f310425 | 7720 | schedule_work(&ctrl_info->ctrl_offline_work); |
376fb880 KB |
7721 | } |
7722 | ||
d91d7820 | 7723 | static void pqi_print_ctrl_info(struct pci_dev *pci_dev, |
6c223761 KB |
7724 | const struct pci_device_id *id) |
7725 | { | |
7726 | char *ctrl_description; | |
7727 | ||
37b36847 | 7728 | if (id->driver_data) |
6c223761 | 7729 | ctrl_description = (char *)id->driver_data; |
37b36847 KB |
7730 | else |
7731 | ctrl_description = "Microsemi Smart Family Controller"; | |
6c223761 | 7732 | |
d91d7820 | 7733 | dev_info(&pci_dev->dev, "%s found\n", ctrl_description); |
6c223761 KB |
7734 | } |
7735 | ||
d91d7820 KB |
7736 | static int pqi_pci_probe(struct pci_dev *pci_dev, |
7737 | const struct pci_device_id *id) | |
6c223761 KB |
7738 | { |
7739 | int rc; | |
62dc51fb | 7740 | int node, cp_node; |
6c223761 KB |
7741 | struct pqi_ctrl_info *ctrl_info; |
7742 | ||
d91d7820 | 7743 | pqi_print_ctrl_info(pci_dev, id); |
6c223761 KB |
7744 | |
7745 | if (pqi_disable_device_id_wildcards && | |
7746 | id->subvendor == PCI_ANY_ID && | |
7747 | id->subdevice == PCI_ANY_ID) { | |
d91d7820 | 7748 | dev_warn(&pci_dev->dev, |
6c223761 KB |
7749 | "controller not probed because device ID wildcards are disabled\n"); |
7750 | return -ENODEV; | |
7751 | } | |
7752 | ||
7753 | if (id->subvendor == PCI_ANY_ID || id->subdevice == PCI_ANY_ID) | |
d91d7820 | 7754 | dev_warn(&pci_dev->dev, |
6c223761 KB |
7755 | "controller device ID matched using wildcards\n"); |
7756 | ||
d91d7820 | 7757 | node = dev_to_node(&pci_dev->dev); |
62dc51fb SB |
7758 | if (node == NUMA_NO_NODE) { |
7759 | cp_node = cpu_to_node(0); | |
7760 | if (cp_node == NUMA_NO_NODE) | |
7761 | cp_node = 0; | |
7762 | set_dev_node(&pci_dev->dev, cp_node); | |
7763 | } | |
6c223761 KB |
7764 | |
7765 | ctrl_info = pqi_alloc_ctrl_info(node); | |
7766 | if (!ctrl_info) { | |
d91d7820 | 7767 | dev_err(&pci_dev->dev, |
6c223761 KB |
7768 | "failed to allocate controller info block\n"); |
7769 | return -ENOMEM; | |
7770 | } | |
7771 | ||
d91d7820 | 7772 | ctrl_info->pci_dev = pci_dev; |
6c223761 KB |
7773 | |
7774 | rc = pqi_pci_init(ctrl_info); | |
7775 | if (rc) | |
7776 | goto error; | |
7777 | ||
7778 | rc = pqi_ctrl_init(ctrl_info); | |
7779 | if (rc) | |
7780 | goto error; | |
7781 | ||
7782 | return 0; | |
7783 | ||
7784 | error: | |
7785 | pqi_remove_ctrl(ctrl_info); | |
7786 | ||
7787 | return rc; | |
7788 | } | |
7789 | ||
d91d7820 | 7790 | static void pqi_pci_remove(struct pci_dev *pci_dev) |
6c223761 KB |
7791 | { |
7792 | struct pqi_ctrl_info *ctrl_info; | |
7793 | ||
d91d7820 | 7794 | ctrl_info = pci_get_drvdata(pci_dev); |
6c223761 KB |
7795 | if (!ctrl_info) |
7796 | return; | |
7797 | ||
1e46731e MR |
7798 | ctrl_info->in_shutdown = true; |
7799 | ||
6c223761 KB |
7800 | pqi_remove_ctrl(ctrl_info); |
7801 | } | |
7802 | ||
d91d7820 | 7803 | static void pqi_shutdown(struct pci_dev *pci_dev) |
6c223761 KB |
7804 | { |
7805 | int rc; | |
7806 | struct pqi_ctrl_info *ctrl_info; | |
7807 | ||
d91d7820 | 7808 | ctrl_info = pci_get_drvdata(pci_dev); |
6c223761 KB |
7809 | if (!ctrl_info) |
7810 | goto error; | |
7811 | ||
7812 | /* | |
7813 | * Write all data in the controller's battery-backed cache to | |
7814 | * storage. | |
7815 | */ | |
58322fe0 | 7816 | rc = pqi_flush_cache(ctrl_info, SHUTDOWN); |
e57b2945 | 7817 | pqi_free_interrupts(ctrl_info); |
b6d47811 | 7818 | pqi_reset(ctrl_info); |
6c223761 KB |
7819 | if (rc == 0) |
7820 | return; | |
7821 | ||
7822 | error: | |
d91d7820 | 7823 | dev_warn(&pci_dev->dev, |
6c223761 KB |
7824 | "unable to flush controller cache\n"); |
7825 | } | |
7826 | ||
3c50976f KB |
7827 | static void pqi_process_lockup_action_param(void) |
7828 | { | |
7829 | unsigned int i; | |
7830 | ||
7831 | if (!pqi_lockup_action_param) | |
7832 | return; | |
7833 | ||
7834 | for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) { | |
7835 | if (strcmp(pqi_lockup_action_param, | |
7836 | pqi_lockup_actions[i].name) == 0) { | |
7837 | pqi_lockup_action = pqi_lockup_actions[i].action; | |
7838 | return; | |
7839 | } | |
7840 | } | |
7841 | ||
7842 | pr_warn("%s: invalid lockup action setting \"%s\" - supported settings: none, reboot, panic\n", | |
7843 | DRIVER_NAME_SHORT, pqi_lockup_action_param); | |
7844 | } | |
7845 | ||
7846 | static void pqi_process_module_params(void) | |
7847 | { | |
7848 | pqi_process_lockup_action_param(); | |
7849 | } | |
7850 | ||
5c146686 | 7851 | static __maybe_unused int pqi_suspend(struct pci_dev *pci_dev, pm_message_t state) |
061ef06a KB |
7852 | { |
7853 | struct pqi_ctrl_info *ctrl_info; | |
7854 | ||
7855 | ctrl_info = pci_get_drvdata(pci_dev); | |
7856 | ||
7857 | pqi_disable_events(ctrl_info); | |
7858 | pqi_cancel_update_time_worker(ctrl_info); | |
7859 | pqi_cancel_rescan_worker(ctrl_info); | |
7860 | pqi_wait_until_scan_finished(ctrl_info); | |
7861 | pqi_wait_until_lun_reset_finished(ctrl_info); | |
4fd22c13 | 7862 | pqi_wait_until_ofa_finished(ctrl_info); |
58322fe0 | 7863 | pqi_flush_cache(ctrl_info, SUSPEND); |
061ef06a KB |
7864 | pqi_ctrl_block_requests(ctrl_info); |
7865 | pqi_ctrl_wait_until_quiesced(ctrl_info); | |
7866 | pqi_wait_until_inbound_queues_empty(ctrl_info); | |
4fd22c13 | 7867 | pqi_ctrl_wait_for_pending_io(ctrl_info, NO_TIMEOUT); |
061ef06a KB |
7868 | pqi_stop_heartbeat_timer(ctrl_info); |
7869 | ||
7870 | if (state.event == PM_EVENT_FREEZE) | |
7871 | return 0; | |
7872 | ||
7873 | pci_save_state(pci_dev); | |
7874 | pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state)); | |
7875 | ||
7876 | ctrl_info->controller_online = false; | |
7877 | ctrl_info->pqi_mode_enabled = false; | |
7878 | ||
7879 | return 0; | |
7880 | } | |
7881 | ||
5c146686 | 7882 | static __maybe_unused int pqi_resume(struct pci_dev *pci_dev) |
061ef06a KB |
7883 | { |
7884 | int rc; | |
7885 | struct pqi_ctrl_info *ctrl_info; | |
7886 | ||
7887 | ctrl_info = pci_get_drvdata(pci_dev); | |
7888 | ||
7889 | if (pci_dev->current_state != PCI_D0) { | |
7890 | ctrl_info->max_hw_queue_index = 0; | |
7891 | pqi_free_interrupts(ctrl_info); | |
7892 | pqi_change_irq_mode(ctrl_info, IRQ_MODE_INTX); | |
7893 | rc = request_irq(pci_irq_vector(pci_dev, 0), pqi_irq_handler, | |
7894 | IRQF_SHARED, DRIVER_NAME_SHORT, | |
7895 | &ctrl_info->queue_groups[0]); | |
7896 | if (rc) { | |
7897 | dev_err(&ctrl_info->pci_dev->dev, | |
7898 | "irq %u init failed with error %d\n", | |
7899 | pci_dev->irq, rc); | |
7900 | return rc; | |
7901 | } | |
7902 | pqi_start_heartbeat_timer(ctrl_info); | |
7903 | pqi_ctrl_unblock_requests(ctrl_info); | |
7904 | return 0; | |
7905 | } | |
7906 | ||
7907 | pci_set_power_state(pci_dev, PCI_D0); | |
7908 | pci_restore_state(pci_dev); | |
7909 | ||
7910 | return pqi_ctrl_init_resume(ctrl_info); | |
7911 | } | |
7912 | ||
6c223761 KB |
7913 | /* Define the PCI IDs for the controllers that we support. */ |
7914 | static const struct pci_device_id pqi_pci_id_table[] = { | |
b0f9408b KB |
7915 | { |
7916 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7917 | 0x105b, 0x1211) | |
7918 | }, | |
7919 | { | |
7920 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7921 | 0x105b, 0x1321) | |
7922 | }, | |
7eddabff KB |
7923 | { |
7924 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7925 | 0x152d, 0x8a22) | |
7926 | }, | |
7927 | { | |
7928 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7929 | 0x152d, 0x8a23) | |
7930 | }, | |
7931 | { | |
7932 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7933 | 0x152d, 0x8a24) | |
7934 | }, | |
7935 | { | |
7936 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7937 | 0x152d, 0x8a36) | |
7938 | }, | |
7939 | { | |
7940 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7941 | 0x152d, 0x8a37) | |
7942 | }, | |
b0f9408b KB |
7943 | { |
7944 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7945 | 0x193d, 0x8460) | |
7946 | }, | |
7947 | { | |
7948 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7949 | 0x193d, 0x8461) | |
7950 | }, | |
84a77fef MB |
7951 | { |
7952 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7953 | 0x193d, 0xc460) | |
7954 | }, | |
7955 | { | |
7956 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7957 | 0x193d, 0xc461) | |
7958 | }, | |
b0f9408b KB |
7959 | { |
7960 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7961 | 0x193d, 0xf460) | |
7962 | }, | |
7963 | { | |
7964 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7965 | 0x193d, 0xf461) | |
7966 | }, | |
7967 | { | |
7968 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7969 | 0x1bd4, 0x0045) | |
7970 | }, | |
7971 | { | |
7972 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7973 | 0x1bd4, 0x0046) | |
7974 | }, | |
7975 | { | |
7976 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7977 | 0x1bd4, 0x0047) | |
7978 | }, | |
7979 | { | |
7980 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7981 | 0x1bd4, 0x0048) | |
7982 | }, | |
9f8d05fa KB |
7983 | { |
7984 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7985 | 0x1bd4, 0x004a) | |
7986 | }, | |
7987 | { | |
7988 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7989 | 0x1bd4, 0x004b) | |
7990 | }, | |
7991 | { | |
7992 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7993 | 0x1bd4, 0x004c) | |
7994 | }, | |
c1b10475 AK |
7995 | { |
7996 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7997 | 0x19e5, 0xd227) | |
7998 | }, | |
7999 | { | |
8000 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8001 | 0x19e5, 0xd228) | |
8002 | }, | |
8003 | { | |
8004 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8005 | 0x19e5, 0xd229) | |
8006 | }, | |
8007 | { | |
8008 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8009 | 0x19e5, 0xd22a) | |
8010 | }, | |
8011 | { | |
8012 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8013 | 0x19e5, 0xd22b) | |
8014 | }, | |
8015 | { | |
8016 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8017 | 0x19e5, 0xd22c) | |
8018 | }, | |
6c223761 KB |
8019 | { |
8020 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8021 | PCI_VENDOR_ID_ADAPTEC2, 0x0110) | |
8022 | }, | |
8023 | { | |
8024 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
55790064 | 8025 | PCI_VENDOR_ID_ADAPTEC2, 0x0608) |
6c223761 KB |
8026 | }, |
8027 | { | |
8028 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 8029 | PCI_VENDOR_ID_ADAPTEC2, 0x0800) |
6c223761 KB |
8030 | }, |
8031 | { | |
8032 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 8033 | PCI_VENDOR_ID_ADAPTEC2, 0x0801) |
6c223761 KB |
8034 | }, |
8035 | { | |
8036 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 8037 | PCI_VENDOR_ID_ADAPTEC2, 0x0802) |
6c223761 KB |
8038 | }, |
8039 | { | |
8040 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 8041 | PCI_VENDOR_ID_ADAPTEC2, 0x0803) |
6c223761 KB |
8042 | }, |
8043 | { | |
8044 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 8045 | PCI_VENDOR_ID_ADAPTEC2, 0x0804) |
6c223761 KB |
8046 | }, |
8047 | { | |
8048 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 8049 | PCI_VENDOR_ID_ADAPTEC2, 0x0805) |
6c223761 KB |
8050 | }, |
8051 | { | |
8052 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 8053 | PCI_VENDOR_ID_ADAPTEC2, 0x0806) |
6c223761 | 8054 | }, |
55790064 KB |
8055 | { |
8056 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8057 | PCI_VENDOR_ID_ADAPTEC2, 0x0807) | |
8058 | }, | |
6c223761 KB |
8059 | { |
8060 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 8061 | PCI_VENDOR_ID_ADAPTEC2, 0x0900) |
6c223761 KB |
8062 | }, |
8063 | { | |
8064 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 8065 | PCI_VENDOR_ID_ADAPTEC2, 0x0901) |
6c223761 KB |
8066 | }, |
8067 | { | |
8068 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 8069 | PCI_VENDOR_ID_ADAPTEC2, 0x0902) |
6c223761 KB |
8070 | }, |
8071 | { | |
8072 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 8073 | PCI_VENDOR_ID_ADAPTEC2, 0x0903) |
6c223761 KB |
8074 | }, |
8075 | { | |
8076 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 8077 | PCI_VENDOR_ID_ADAPTEC2, 0x0904) |
6c223761 KB |
8078 | }, |
8079 | { | |
8080 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 8081 | PCI_VENDOR_ID_ADAPTEC2, 0x0905) |
6c223761 KB |
8082 | }, |
8083 | { | |
8084 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 8085 | PCI_VENDOR_ID_ADAPTEC2, 0x0906) |
6c223761 KB |
8086 | }, |
8087 | { | |
8088 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 8089 | PCI_VENDOR_ID_ADAPTEC2, 0x0907) |
6c223761 KB |
8090 | }, |
8091 | { | |
8092 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 8093 | PCI_VENDOR_ID_ADAPTEC2, 0x0908) |
6c223761 | 8094 | }, |
55790064 KB |
8095 | { |
8096 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8097 | PCI_VENDOR_ID_ADAPTEC2, 0x090a) | |
8098 | }, | |
6c223761 KB |
8099 | { |
8100 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 8101 | PCI_VENDOR_ID_ADAPTEC2, 0x1200) |
6c223761 KB |
8102 | }, |
8103 | { | |
8104 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 8105 | PCI_VENDOR_ID_ADAPTEC2, 0x1201) |
6c223761 KB |
8106 | }, |
8107 | { | |
8108 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 8109 | PCI_VENDOR_ID_ADAPTEC2, 0x1202) |
6c223761 KB |
8110 | }, |
8111 | { | |
8112 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 8113 | PCI_VENDOR_ID_ADAPTEC2, 0x1280) |
6c223761 KB |
8114 | }, |
8115 | { | |
8116 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 8117 | PCI_VENDOR_ID_ADAPTEC2, 0x1281) |
6c223761 | 8118 | }, |
b0f9408b KB |
8119 | { |
8120 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8121 | PCI_VENDOR_ID_ADAPTEC2, 0x1282) | |
8122 | }, | |
6c223761 KB |
8123 | { |
8124 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 8125 | PCI_VENDOR_ID_ADAPTEC2, 0x1300) |
6c223761 KB |
8126 | }, |
8127 | { | |
8128 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 8129 | PCI_VENDOR_ID_ADAPTEC2, 0x1301) |
6c223761 | 8130 | }, |
bd809e8d KB |
8131 | { |
8132 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8133 | PCI_VENDOR_ID_ADAPTEC2, 0x1302) | |
8134 | }, | |
8135 | { | |
8136 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8137 | PCI_VENDOR_ID_ADAPTEC2, 0x1303) | |
8138 | }, | |
6c223761 KB |
8139 | { |
8140 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff KB |
8141 | PCI_VENDOR_ID_ADAPTEC2, 0x1380) |
8142 | }, | |
9f8d05fa KB |
8143 | { |
8144 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8145 | PCI_VENDOR_ID_ADVANTECH, 0x8312) | |
8146 | }, | |
55790064 KB |
8147 | { |
8148 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8149 | PCI_VENDOR_ID_DELL, 0x1fe0) | |
8150 | }, | |
7eddabff KB |
8151 | { |
8152 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8153 | PCI_VENDOR_ID_HP, 0x0600) | |
8154 | }, | |
8155 | { | |
8156 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8157 | PCI_VENDOR_ID_HP, 0x0601) | |
8158 | }, | |
8159 | { | |
8160 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8161 | PCI_VENDOR_ID_HP, 0x0602) | |
8162 | }, | |
8163 | { | |
8164 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8165 | PCI_VENDOR_ID_HP, 0x0603) | |
8166 | }, | |
8167 | { | |
8168 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
55790064 | 8169 | PCI_VENDOR_ID_HP, 0x0609) |
7eddabff KB |
8170 | }, |
8171 | { | |
8172 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8173 | PCI_VENDOR_ID_HP, 0x0650) | |
8174 | }, | |
8175 | { | |
8176 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8177 | PCI_VENDOR_ID_HP, 0x0651) | |
8178 | }, | |
8179 | { | |
8180 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8181 | PCI_VENDOR_ID_HP, 0x0652) | |
8182 | }, | |
8183 | { | |
8184 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8185 | PCI_VENDOR_ID_HP, 0x0653) | |
8186 | }, | |
8187 | { | |
8188 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8189 | PCI_VENDOR_ID_HP, 0x0654) | |
8190 | }, | |
8191 | { | |
8192 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8193 | PCI_VENDOR_ID_HP, 0x0655) | |
8194 | }, | |
7eddabff KB |
8195 | { |
8196 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8197 | PCI_VENDOR_ID_HP, 0x0700) | |
8198 | }, | |
8199 | { | |
8200 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8201 | PCI_VENDOR_ID_HP, 0x0701) | |
6c223761 KB |
8202 | }, |
8203 | { | |
8204 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8205 | PCI_VENDOR_ID_HP, 0x1001) | |
8206 | }, | |
8207 | { | |
8208 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8209 | PCI_VENDOR_ID_HP, 0x1100) | |
8210 | }, | |
8211 | { | |
8212 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8213 | PCI_VENDOR_ID_HP, 0x1101) | |
8214 | }, | |
6c223761 KB |
8215 | { |
8216 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
8217 | PCI_ANY_ID, PCI_ANY_ID) | |
8218 | }, | |
8219 | { 0 } | |
8220 | }; | |
8221 | ||
8222 | MODULE_DEVICE_TABLE(pci, pqi_pci_id_table); | |
8223 | ||
8224 | static struct pci_driver pqi_pci_driver = { | |
8225 | .name = DRIVER_NAME_SHORT, | |
8226 | .id_table = pqi_pci_id_table, | |
8227 | .probe = pqi_pci_probe, | |
8228 | .remove = pqi_pci_remove, | |
8229 | .shutdown = pqi_shutdown, | |
061ef06a KB |
8230 | #if defined(CONFIG_PM) |
8231 | .suspend = pqi_suspend, | |
8232 | .resume = pqi_resume, | |
8233 | #endif | |
6c223761 KB |
8234 | }; |
8235 | ||
8236 | static int __init pqi_init(void) | |
8237 | { | |
8238 | int rc; | |
8239 | ||
8240 | pr_info(DRIVER_NAME "\n"); | |
8241 | ||
8242 | pqi_sas_transport_template = | |
8243 | sas_attach_transport(&pqi_sas_transport_functions); | |
8244 | if (!pqi_sas_transport_template) | |
8245 | return -ENODEV; | |
8246 | ||
3c50976f KB |
8247 | pqi_process_module_params(); |
8248 | ||
6c223761 KB |
8249 | rc = pci_register_driver(&pqi_pci_driver); |
8250 | if (rc) | |
8251 | sas_release_transport(pqi_sas_transport_template); | |
8252 | ||
8253 | return rc; | |
8254 | } | |
8255 | ||
8256 | static void __exit pqi_cleanup(void) | |
8257 | { | |
8258 | pci_unregister_driver(&pqi_pci_driver); | |
8259 | sas_release_transport(pqi_sas_transport_template); | |
8260 | } | |
8261 | ||
8262 | module_init(pqi_init); | |
8263 | module_exit(pqi_cleanup); | |
8264 | ||
8265 | static void __attribute__((unused)) verify_structures(void) | |
8266 | { | |
8267 | BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, | |
8268 | sis_host_to_ctrl_doorbell) != 0x20); | |
8269 | BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, | |
8270 | sis_interrupt_mask) != 0x34); | |
8271 | BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, | |
8272 | sis_ctrl_to_host_doorbell) != 0x9c); | |
8273 | BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, | |
8274 | sis_ctrl_to_host_doorbell_clear) != 0xa0); | |
ff6abb73 KB |
8275 | BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, |
8276 | sis_driver_scratch) != 0xb0); | |
6c223761 KB |
8277 | BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, |
8278 | sis_firmware_status) != 0xbc); | |
8279 | BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, | |
8280 | sis_mailbox) != 0x1000); | |
8281 | BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, | |
8282 | pqi_registers) != 0x4000); | |
8283 | ||
8284 | BUILD_BUG_ON(offsetof(struct pqi_iu_header, | |
8285 | iu_type) != 0x0); | |
8286 | BUILD_BUG_ON(offsetof(struct pqi_iu_header, | |
8287 | iu_length) != 0x2); | |
8288 | BUILD_BUG_ON(offsetof(struct pqi_iu_header, | |
8289 | response_queue_id) != 0x4); | |
8290 | BUILD_BUG_ON(offsetof(struct pqi_iu_header, | |
8291 | work_area) != 0x6); | |
8292 | BUILD_BUG_ON(sizeof(struct pqi_iu_header) != 0x8); | |
8293 | ||
8294 | BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, | |
8295 | status) != 0x0); | |
8296 | BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, | |
8297 | service_response) != 0x1); | |
8298 | BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, | |
8299 | data_present) != 0x2); | |
8300 | BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, | |
8301 | reserved) != 0x3); | |
8302 | BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, | |
8303 | residual_count) != 0x4); | |
8304 | BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, | |
8305 | data_length) != 0x8); | |
8306 | BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, | |
8307 | reserved1) != 0xa); | |
8308 | BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, | |
8309 | data) != 0xc); | |
8310 | BUILD_BUG_ON(sizeof(struct pqi_aio_error_info) != 0x10c); | |
8311 | ||
8312 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
8313 | data_in_result) != 0x0); | |
8314 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
8315 | data_out_result) != 0x1); | |
8316 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
8317 | reserved) != 0x2); | |
8318 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
8319 | status) != 0x5); | |
8320 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
8321 | status_qualifier) != 0x6); | |
8322 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
8323 | sense_data_length) != 0x8); | |
8324 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
8325 | response_data_length) != 0xa); | |
8326 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
8327 | data_in_transferred) != 0xc); | |
8328 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
8329 | data_out_transferred) != 0x10); | |
8330 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
8331 | data) != 0x14); | |
8332 | BUILD_BUG_ON(sizeof(struct pqi_raid_error_info) != 0x114); | |
8333 | ||
8334 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
8335 | signature) != 0x0); | |
8336 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
8337 | function_and_status_code) != 0x8); | |
8338 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
8339 | max_admin_iq_elements) != 0x10); | |
8340 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
8341 | max_admin_oq_elements) != 0x11); | |
8342 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
8343 | admin_iq_element_length) != 0x12); | |
8344 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
8345 | admin_oq_element_length) != 0x13); | |
8346 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
8347 | max_reset_timeout) != 0x14); | |
8348 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
8349 | legacy_intx_status) != 0x18); | |
8350 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
8351 | legacy_intx_mask_set) != 0x1c); | |
8352 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
8353 | legacy_intx_mask_clear) != 0x20); | |
8354 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
8355 | device_status) != 0x40); | |
8356 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
8357 | admin_iq_pi_offset) != 0x48); | |
8358 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
8359 | admin_oq_ci_offset) != 0x50); | |
8360 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
8361 | admin_iq_element_array_addr) != 0x58); | |
8362 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
8363 | admin_oq_element_array_addr) != 0x60); | |
8364 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
8365 | admin_iq_ci_addr) != 0x68); | |
8366 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
8367 | admin_oq_pi_addr) != 0x70); | |
8368 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
8369 | admin_iq_num_elements) != 0x78); | |
8370 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
8371 | admin_oq_num_elements) != 0x79); | |
8372 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
8373 | admin_queue_int_msg_num) != 0x7a); | |
8374 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
8375 | device_error) != 0x80); | |
8376 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
8377 | error_details) != 0x88); | |
8378 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
8379 | device_reset) != 0x90); | |
8380 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
8381 | power_action) != 0x94); | |
8382 | BUILD_BUG_ON(sizeof(struct pqi_device_registers) != 0x100); | |
8383 | ||
8384 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
8385 | header.iu_type) != 0); | |
8386 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
8387 | header.iu_length) != 2); | |
8388 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
8389 | header.work_area) != 6); | |
8390 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
8391 | request_id) != 8); | |
8392 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
8393 | function_code) != 10); | |
8394 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
8395 | data.report_device_capability.buffer_length) != 44); | |
8396 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
8397 | data.report_device_capability.sg_descriptor) != 48); | |
8398 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
8399 | data.create_operational_iq.queue_id) != 12); | |
8400 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
8401 | data.create_operational_iq.element_array_addr) != 16); | |
8402 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
8403 | data.create_operational_iq.ci_addr) != 24); | |
8404 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
8405 | data.create_operational_iq.num_elements) != 32); | |
8406 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
8407 | data.create_operational_iq.element_length) != 34); | |
8408 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
8409 | data.create_operational_iq.queue_protocol) != 36); | |
8410 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
8411 | data.create_operational_oq.queue_id) != 12); | |
8412 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
8413 | data.create_operational_oq.element_array_addr) != 16); | |
8414 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
8415 | data.create_operational_oq.pi_addr) != 24); | |
8416 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
8417 | data.create_operational_oq.num_elements) != 32); | |
8418 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
8419 | data.create_operational_oq.element_length) != 34); | |
8420 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
8421 | data.create_operational_oq.queue_protocol) != 36); | |
8422 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
8423 | data.create_operational_oq.int_msg_num) != 40); | |
8424 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
8425 | data.create_operational_oq.coalescing_count) != 42); | |
8426 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
8427 | data.create_operational_oq.min_coalescing_time) != 44); | |
8428 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
8429 | data.create_operational_oq.max_coalescing_time) != 48); | |
8430 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
8431 | data.delete_operational_queue.queue_id) != 12); | |
8432 | BUILD_BUG_ON(sizeof(struct pqi_general_admin_request) != 64); | |
8433 | BUILD_BUG_ON(FIELD_SIZEOF(struct pqi_general_admin_request, | |
8434 | data.create_operational_iq) != 64 - 11); | |
8435 | BUILD_BUG_ON(FIELD_SIZEOF(struct pqi_general_admin_request, | |
8436 | data.create_operational_oq) != 64 - 11); | |
8437 | BUILD_BUG_ON(FIELD_SIZEOF(struct pqi_general_admin_request, | |
8438 | data.delete_operational_queue) != 64 - 11); | |
8439 | ||
8440 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
8441 | header.iu_type) != 0); | |
8442 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
8443 | header.iu_length) != 2); | |
8444 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
8445 | header.work_area) != 6); | |
8446 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
8447 | request_id) != 8); | |
8448 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
8449 | function_code) != 10); | |
8450 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
8451 | status) != 11); | |
8452 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
8453 | data.create_operational_iq.status_descriptor) != 12); | |
8454 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
8455 | data.create_operational_iq.iq_pi_offset) != 16); | |
8456 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
8457 | data.create_operational_oq.status_descriptor) != 12); | |
8458 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
8459 | data.create_operational_oq.oq_ci_offset) != 16); | |
8460 | BUILD_BUG_ON(sizeof(struct pqi_general_admin_response) != 64); | |
8461 | ||
8462 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
8463 | header.iu_type) != 0); | |
8464 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
8465 | header.iu_length) != 2); | |
8466 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
8467 | header.response_queue_id) != 4); | |
8468 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
8469 | header.work_area) != 6); | |
8470 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
8471 | request_id) != 8); | |
8472 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
8473 | nexus_id) != 10); | |
8474 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
8475 | buffer_length) != 12); | |
8476 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
8477 | lun_number) != 16); | |
8478 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
8479 | protocol_specific) != 24); | |
8480 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
8481 | error_index) != 27); | |
8482 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
8483 | cdb) != 32); | |
8484 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
8485 | sg_descriptors) != 64); | |
8486 | BUILD_BUG_ON(sizeof(struct pqi_raid_path_request) != | |
8487 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); | |
8488 | ||
8489 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
8490 | header.iu_type) != 0); | |
8491 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
8492 | header.iu_length) != 2); | |
8493 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
8494 | header.response_queue_id) != 4); | |
8495 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
8496 | header.work_area) != 6); | |
8497 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
8498 | request_id) != 8); | |
8499 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
8500 | nexus_id) != 12); | |
8501 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
8502 | buffer_length) != 16); | |
8503 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
8504 | data_encryption_key_index) != 22); | |
8505 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
8506 | encrypt_tweak_lower) != 24); | |
8507 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
8508 | encrypt_tweak_upper) != 28); | |
8509 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
8510 | cdb) != 32); | |
8511 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
8512 | error_index) != 48); | |
8513 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
8514 | num_sg_descriptors) != 50); | |
8515 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
8516 | cdb_length) != 51); | |
8517 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
8518 | lun_number) != 52); | |
8519 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
8520 | sg_descriptors) != 64); | |
8521 | BUILD_BUG_ON(sizeof(struct pqi_aio_path_request) != | |
8522 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); | |
8523 | ||
8524 | BUILD_BUG_ON(offsetof(struct pqi_io_response, | |
8525 | header.iu_type) != 0); | |
8526 | BUILD_BUG_ON(offsetof(struct pqi_io_response, | |
8527 | header.iu_length) != 2); | |
8528 | BUILD_BUG_ON(offsetof(struct pqi_io_response, | |
8529 | request_id) != 8); | |
8530 | BUILD_BUG_ON(offsetof(struct pqi_io_response, | |
8531 | error_index) != 10); | |
8532 | ||
8533 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
8534 | header.iu_type) != 0); | |
8535 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
8536 | header.iu_length) != 2); | |
8537 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
8538 | header.response_queue_id) != 4); | |
8539 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
8540 | request_id) != 8); | |
8541 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
8542 | data.report_event_configuration.buffer_length) != 12); | |
8543 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
8544 | data.report_event_configuration.sg_descriptors) != 16); | |
8545 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
8546 | data.set_event_configuration.global_event_oq_id) != 10); | |
8547 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
8548 | data.set_event_configuration.buffer_length) != 12); | |
8549 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
8550 | data.set_event_configuration.sg_descriptors) != 16); | |
8551 | ||
8552 | BUILD_BUG_ON(offsetof(struct pqi_iu_layer_descriptor, | |
8553 | max_inbound_iu_length) != 6); | |
8554 | BUILD_BUG_ON(offsetof(struct pqi_iu_layer_descriptor, | |
8555 | max_outbound_iu_length) != 14); | |
8556 | BUILD_BUG_ON(sizeof(struct pqi_iu_layer_descriptor) != 16); | |
8557 | ||
8558 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8559 | data_length) != 0); | |
8560 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8561 | iq_arbitration_priority_support_bitmask) != 8); | |
8562 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8563 | maximum_aw_a) != 9); | |
8564 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8565 | maximum_aw_b) != 10); | |
8566 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8567 | maximum_aw_c) != 11); | |
8568 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8569 | max_inbound_queues) != 16); | |
8570 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8571 | max_elements_per_iq) != 18); | |
8572 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8573 | max_iq_element_length) != 24); | |
8574 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8575 | min_iq_element_length) != 26); | |
8576 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8577 | max_outbound_queues) != 30); | |
8578 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8579 | max_elements_per_oq) != 32); | |
8580 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8581 | intr_coalescing_time_granularity) != 34); | |
8582 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8583 | max_oq_element_length) != 36); | |
8584 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8585 | min_oq_element_length) != 38); | |
8586 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8587 | iu_layer_descriptors) != 64); | |
8588 | BUILD_BUG_ON(sizeof(struct pqi_device_capability) != 576); | |
8589 | ||
8590 | BUILD_BUG_ON(offsetof(struct pqi_event_descriptor, | |
8591 | event_type) != 0); | |
8592 | BUILD_BUG_ON(offsetof(struct pqi_event_descriptor, | |
8593 | oq_id) != 2); | |
8594 | BUILD_BUG_ON(sizeof(struct pqi_event_descriptor) != 4); | |
8595 | ||
8596 | BUILD_BUG_ON(offsetof(struct pqi_event_config, | |
8597 | num_event_descriptors) != 2); | |
8598 | BUILD_BUG_ON(offsetof(struct pqi_event_config, | |
8599 | descriptors) != 4); | |
8600 | ||
061ef06a KB |
8601 | BUILD_BUG_ON(PQI_NUM_SUPPORTED_EVENTS != |
8602 | ARRAY_SIZE(pqi_supported_event_types)); | |
8603 | ||
6c223761 KB |
8604 | BUILD_BUG_ON(offsetof(struct pqi_event_response, |
8605 | header.iu_type) != 0); | |
8606 | BUILD_BUG_ON(offsetof(struct pqi_event_response, | |
8607 | header.iu_length) != 2); | |
8608 | BUILD_BUG_ON(offsetof(struct pqi_event_response, | |
8609 | event_type) != 8); | |
8610 | BUILD_BUG_ON(offsetof(struct pqi_event_response, | |
8611 | event_id) != 10); | |
8612 | BUILD_BUG_ON(offsetof(struct pqi_event_response, | |
8613 | additional_event_id) != 12); | |
8614 | BUILD_BUG_ON(offsetof(struct pqi_event_response, | |
8615 | data) != 16); | |
8616 | BUILD_BUG_ON(sizeof(struct pqi_event_response) != 32); | |
8617 | ||
8618 | BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, | |
8619 | header.iu_type) != 0); | |
8620 | BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, | |
8621 | header.iu_length) != 2); | |
8622 | BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, | |
8623 | event_type) != 8); | |
8624 | BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, | |
8625 | event_id) != 10); | |
8626 | BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, | |
8627 | additional_event_id) != 12); | |
8628 | BUILD_BUG_ON(sizeof(struct pqi_event_acknowledge_request) != 16); | |
8629 | ||
8630 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
8631 | header.iu_type) != 0); | |
8632 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
8633 | header.iu_length) != 2); | |
8634 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
8635 | request_id) != 8); | |
8636 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
8637 | nexus_id) != 10); | |
8638 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
8639 | lun_number) != 16); | |
8640 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
8641 | protocol_specific) != 24); | |
8642 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
8643 | outbound_queue_id_to_manage) != 26); | |
8644 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
8645 | request_id_to_manage) != 28); | |
8646 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
8647 | task_management_function) != 30); | |
8648 | BUILD_BUG_ON(sizeof(struct pqi_task_management_request) != 32); | |
8649 | ||
8650 | BUILD_BUG_ON(offsetof(struct pqi_task_management_response, | |
8651 | header.iu_type) != 0); | |
8652 | BUILD_BUG_ON(offsetof(struct pqi_task_management_response, | |
8653 | header.iu_length) != 2); | |
8654 | BUILD_BUG_ON(offsetof(struct pqi_task_management_response, | |
8655 | request_id) != 8); | |
8656 | BUILD_BUG_ON(offsetof(struct pqi_task_management_response, | |
8657 | nexus_id) != 10); | |
8658 | BUILD_BUG_ON(offsetof(struct pqi_task_management_response, | |
8659 | additional_response_info) != 12); | |
8660 | BUILD_BUG_ON(offsetof(struct pqi_task_management_response, | |
8661 | response_code) != 15); | |
8662 | BUILD_BUG_ON(sizeof(struct pqi_task_management_response) != 16); | |
8663 | ||
8664 | BUILD_BUG_ON(offsetof(struct bmic_identify_controller, | |
8665 | configured_logical_drive_count) != 0); | |
8666 | BUILD_BUG_ON(offsetof(struct bmic_identify_controller, | |
8667 | configuration_signature) != 1); | |
8668 | BUILD_BUG_ON(offsetof(struct bmic_identify_controller, | |
8669 | firmware_version) != 5); | |
8670 | BUILD_BUG_ON(offsetof(struct bmic_identify_controller, | |
8671 | extended_logical_unit_count) != 154); | |
8672 | BUILD_BUG_ON(offsetof(struct bmic_identify_controller, | |
8673 | firmware_build_number) != 190); | |
8674 | BUILD_BUG_ON(offsetof(struct bmic_identify_controller, | |
8675 | controller_mode) != 292); | |
8676 | ||
1be42f46 KB |
8677 | BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, |
8678 | phys_bay_in_box) != 115); | |
8679 | BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, | |
8680 | device_type) != 120); | |
8681 | BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, | |
8682 | redundant_path_present_map) != 1736); | |
8683 | BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, | |
8684 | active_path_number) != 1738); | |
8685 | BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, | |
8686 | alternate_paths_phys_connector) != 1739); | |
8687 | BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, | |
8688 | alternate_paths_phys_box_on_port) != 1755); | |
8689 | BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, | |
8690 | current_queue_depth_limit) != 1796); | |
8691 | BUILD_BUG_ON(sizeof(struct bmic_identify_physical_device) != 2560); | |
8692 | ||
6c223761 KB |
8693 | BUILD_BUG_ON(PQI_ADMIN_IQ_NUM_ELEMENTS > 255); |
8694 | BUILD_BUG_ON(PQI_ADMIN_OQ_NUM_ELEMENTS > 255); | |
8695 | BUILD_BUG_ON(PQI_ADMIN_IQ_ELEMENT_LENGTH % | |
8696 | PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0); | |
8697 | BUILD_BUG_ON(PQI_ADMIN_OQ_ELEMENT_LENGTH % | |
8698 | PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0); | |
8699 | BUILD_BUG_ON(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH > 1048560); | |
8700 | BUILD_BUG_ON(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH % | |
8701 | PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0); | |
8702 | BUILD_BUG_ON(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH > 1048560); | |
8703 | BUILD_BUG_ON(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH % | |
8704 | PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0); | |
8705 | ||
8706 | BUILD_BUG_ON(PQI_RESERVED_IO_SLOTS >= PQI_MAX_OUTSTANDING_REQUESTS); | |
d727a776 KB |
8707 | BUILD_BUG_ON(PQI_RESERVED_IO_SLOTS >= |
8708 | PQI_MAX_OUTSTANDING_REQUESTS_KDUMP); | |
6c223761 | 8709 | } |