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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 | ||
2d154f5f KB |
43 | #define DRIVER_VERSION "1.0.4-100" |
44 | #define DRIVER_MAJOR 1 | |
45 | #define DRIVER_MINOR 0 | |
46 | #define DRIVER_RELEASE 4 | |
47 | #define DRIVER_REVISION 100 | |
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); |
6c223761 KB |
77 | |
78 | /* for flags argument to pqi_submit_raid_request_synchronous() */ | |
79 | #define PQI_SYNC_FLAGS_INTERRUPTABLE 0x1 | |
80 | ||
81 | static struct scsi_transport_template *pqi_sas_transport_template; | |
82 | ||
83 | static atomic_t pqi_controller_count = ATOMIC_INIT(0); | |
84 | ||
3c50976f KB |
85 | enum pqi_lockup_action { |
86 | NONE, | |
87 | REBOOT, | |
88 | PANIC | |
89 | }; | |
90 | ||
91 | static enum pqi_lockup_action pqi_lockup_action = NONE; | |
92 | ||
93 | static struct { | |
94 | enum pqi_lockup_action action; | |
95 | char *name; | |
96 | } pqi_lockup_actions[] = { | |
97 | { | |
98 | .action = NONE, | |
99 | .name = "none", | |
100 | }, | |
101 | { | |
102 | .action = REBOOT, | |
103 | .name = "reboot", | |
104 | }, | |
105 | { | |
106 | .action = PANIC, | |
107 | .name = "panic", | |
108 | }, | |
109 | }; | |
110 | ||
6a50d6ad KB |
111 | static unsigned int pqi_supported_event_types[] = { |
112 | PQI_EVENT_TYPE_HOTPLUG, | |
113 | PQI_EVENT_TYPE_HARDWARE, | |
114 | PQI_EVENT_TYPE_PHYSICAL_DEVICE, | |
115 | PQI_EVENT_TYPE_LOGICAL_DEVICE, | |
116 | PQI_EVENT_TYPE_AIO_STATE_CHANGE, | |
117 | PQI_EVENT_TYPE_AIO_CONFIG_CHANGE, | |
118 | }; | |
119 | ||
6c223761 KB |
120 | static int pqi_disable_device_id_wildcards; |
121 | module_param_named(disable_device_id_wildcards, | |
cbe0c7b1 | 122 | pqi_disable_device_id_wildcards, int, 0644); |
6c223761 KB |
123 | MODULE_PARM_DESC(disable_device_id_wildcards, |
124 | "Disable device ID wildcards."); | |
125 | ||
5a259e32 KB |
126 | static int pqi_disable_heartbeat; |
127 | module_param_named(disable_heartbeat, | |
128 | pqi_disable_heartbeat, int, 0644); | |
129 | MODULE_PARM_DESC(disable_heartbeat, | |
130 | "Disable heartbeat."); | |
131 | ||
132 | static int pqi_disable_ctrl_shutdown; | |
133 | module_param_named(disable_ctrl_shutdown, | |
134 | pqi_disable_ctrl_shutdown, int, 0644); | |
135 | MODULE_PARM_DESC(disable_ctrl_shutdown, | |
136 | "Disable controller shutdown when controller locked up."); | |
137 | ||
3c50976f KB |
138 | static char *pqi_lockup_action_param; |
139 | module_param_named(lockup_action, | |
140 | pqi_lockup_action_param, charp, 0644); | |
141 | MODULE_PARM_DESC(lockup_action, "Action to take when controller locked up.\n" | |
142 | "\t\tSupported: none, reboot, panic\n" | |
143 | "\t\tDefault: none"); | |
144 | ||
6c223761 KB |
145 | static char *raid_levels[] = { |
146 | "RAID-0", | |
147 | "RAID-4", | |
148 | "RAID-1(1+0)", | |
149 | "RAID-5", | |
150 | "RAID-5+1", | |
151 | "RAID-ADG", | |
152 | "RAID-1(ADM)", | |
153 | }; | |
154 | ||
155 | static char *pqi_raid_level_to_string(u8 raid_level) | |
156 | { | |
157 | if (raid_level < ARRAY_SIZE(raid_levels)) | |
158 | return raid_levels[raid_level]; | |
159 | ||
a9f93392 | 160 | return "RAID UNKNOWN"; |
6c223761 KB |
161 | } |
162 | ||
163 | #define SA_RAID_0 0 | |
164 | #define SA_RAID_4 1 | |
165 | #define SA_RAID_1 2 /* also used for RAID 10 */ | |
166 | #define SA_RAID_5 3 /* also used for RAID 50 */ | |
167 | #define SA_RAID_51 4 | |
168 | #define SA_RAID_6 5 /* also used for RAID 60 */ | |
169 | #define SA_RAID_ADM 6 /* also used for RAID 1+0 ADM */ | |
170 | #define SA_RAID_MAX SA_RAID_ADM | |
171 | #define SA_RAID_UNKNOWN 0xff | |
172 | ||
173 | static inline void pqi_scsi_done(struct scsi_cmnd *scmd) | |
174 | { | |
7561a7e4 | 175 | pqi_prep_for_scsi_done(scmd); |
6c223761 KB |
176 | scmd->scsi_done(scmd); |
177 | } | |
178 | ||
179 | static inline bool pqi_scsi3addr_equal(u8 *scsi3addr1, u8 *scsi3addr2) | |
180 | { | |
181 | return memcmp(scsi3addr1, scsi3addr2, 8) == 0; | |
182 | } | |
183 | ||
184 | static inline struct pqi_ctrl_info *shost_to_hba(struct Scsi_Host *shost) | |
185 | { | |
186 | void *hostdata = shost_priv(shost); | |
187 | ||
188 | return *((struct pqi_ctrl_info **)hostdata); | |
189 | } | |
190 | ||
191 | static inline bool pqi_is_logical_device(struct pqi_scsi_dev *device) | |
192 | { | |
193 | return !device->is_physical_device; | |
194 | } | |
195 | ||
bd10cf0b KB |
196 | static inline bool pqi_is_external_raid_addr(u8 *scsi3addr) |
197 | { | |
198 | return scsi3addr[2] != 0; | |
199 | } | |
200 | ||
6c223761 KB |
201 | static inline bool pqi_ctrl_offline(struct pqi_ctrl_info *ctrl_info) |
202 | { | |
203 | return !ctrl_info->controller_online; | |
204 | } | |
205 | ||
206 | static inline void pqi_check_ctrl_health(struct pqi_ctrl_info *ctrl_info) | |
207 | { | |
208 | if (ctrl_info->controller_online) | |
209 | if (!sis_is_firmware_running(ctrl_info)) | |
210 | pqi_take_ctrl_offline(ctrl_info); | |
211 | } | |
212 | ||
213 | static inline bool pqi_is_hba_lunid(u8 *scsi3addr) | |
214 | { | |
215 | return pqi_scsi3addr_equal(scsi3addr, RAID_CTLR_LUNID); | |
216 | } | |
217 | ||
ff6abb73 KB |
218 | static inline enum pqi_ctrl_mode pqi_get_ctrl_mode( |
219 | struct pqi_ctrl_info *ctrl_info) | |
220 | { | |
221 | return sis_read_driver_scratch(ctrl_info); | |
222 | } | |
223 | ||
224 | static inline void pqi_save_ctrl_mode(struct pqi_ctrl_info *ctrl_info, | |
225 | enum pqi_ctrl_mode mode) | |
226 | { | |
227 | sis_write_driver_scratch(ctrl_info, mode); | |
228 | } | |
229 | ||
7561a7e4 KB |
230 | static inline void pqi_ctrl_block_requests(struct pqi_ctrl_info *ctrl_info) |
231 | { | |
232 | ctrl_info->block_requests = true; | |
233 | scsi_block_requests(ctrl_info->scsi_host); | |
234 | } | |
235 | ||
236 | static inline void pqi_ctrl_unblock_requests(struct pqi_ctrl_info *ctrl_info) | |
237 | { | |
238 | ctrl_info->block_requests = false; | |
239 | wake_up_all(&ctrl_info->block_requests_wait); | |
376fb880 | 240 | pqi_retry_raid_bypass_requests(ctrl_info); |
7561a7e4 KB |
241 | scsi_unblock_requests(ctrl_info->scsi_host); |
242 | } | |
243 | ||
244 | static inline bool pqi_ctrl_blocked(struct pqi_ctrl_info *ctrl_info) | |
245 | { | |
246 | return ctrl_info->block_requests; | |
247 | } | |
248 | ||
249 | static unsigned long pqi_wait_if_ctrl_blocked(struct pqi_ctrl_info *ctrl_info, | |
250 | unsigned long timeout_msecs) | |
251 | { | |
252 | unsigned long remaining_msecs; | |
253 | ||
254 | if (!pqi_ctrl_blocked(ctrl_info)) | |
255 | return timeout_msecs; | |
256 | ||
257 | atomic_inc(&ctrl_info->num_blocked_threads); | |
258 | ||
259 | if (timeout_msecs == NO_TIMEOUT) { | |
260 | wait_event(ctrl_info->block_requests_wait, | |
261 | !pqi_ctrl_blocked(ctrl_info)); | |
262 | remaining_msecs = timeout_msecs; | |
263 | } else { | |
264 | unsigned long remaining_jiffies; | |
265 | ||
266 | remaining_jiffies = | |
267 | wait_event_timeout(ctrl_info->block_requests_wait, | |
268 | !pqi_ctrl_blocked(ctrl_info), | |
269 | msecs_to_jiffies(timeout_msecs)); | |
270 | remaining_msecs = jiffies_to_msecs(remaining_jiffies); | |
271 | } | |
272 | ||
273 | atomic_dec(&ctrl_info->num_blocked_threads); | |
274 | ||
275 | return remaining_msecs; | |
276 | } | |
277 | ||
278 | static inline void pqi_ctrl_busy(struct pqi_ctrl_info *ctrl_info) | |
279 | { | |
280 | atomic_inc(&ctrl_info->num_busy_threads); | |
281 | } | |
282 | ||
283 | static inline void pqi_ctrl_unbusy(struct pqi_ctrl_info *ctrl_info) | |
284 | { | |
285 | atomic_dec(&ctrl_info->num_busy_threads); | |
286 | } | |
287 | ||
288 | static inline void pqi_ctrl_wait_until_quiesced(struct pqi_ctrl_info *ctrl_info) | |
289 | { | |
290 | while (atomic_read(&ctrl_info->num_busy_threads) > | |
291 | atomic_read(&ctrl_info->num_blocked_threads)) | |
292 | usleep_range(1000, 2000); | |
293 | } | |
294 | ||
03b288cf KB |
295 | static inline bool pqi_device_offline(struct pqi_scsi_dev *device) |
296 | { | |
297 | return device->device_offline; | |
298 | } | |
299 | ||
7561a7e4 KB |
300 | static inline void pqi_device_reset_start(struct pqi_scsi_dev *device) |
301 | { | |
302 | device->in_reset = true; | |
303 | } | |
304 | ||
305 | static inline void pqi_device_reset_done(struct pqi_scsi_dev *device) | |
306 | { | |
307 | device->in_reset = false; | |
308 | } | |
309 | ||
310 | static inline bool pqi_device_in_reset(struct pqi_scsi_dev *device) | |
311 | { | |
312 | return device->in_reset; | |
313 | } | |
6c223761 | 314 | |
5f310425 KB |
315 | static inline void pqi_schedule_rescan_worker_with_delay( |
316 | struct pqi_ctrl_info *ctrl_info, unsigned long delay) | |
317 | { | |
318 | if (pqi_ctrl_offline(ctrl_info)) | |
319 | return; | |
320 | ||
321 | schedule_delayed_work(&ctrl_info->rescan_work, delay); | |
322 | } | |
323 | ||
6c223761 KB |
324 | static inline void pqi_schedule_rescan_worker(struct pqi_ctrl_info *ctrl_info) |
325 | { | |
5f310425 KB |
326 | pqi_schedule_rescan_worker_with_delay(ctrl_info, 0); |
327 | } | |
328 | ||
329 | #define PQI_RESCAN_WORK_DELAY (10 * HZ) | |
330 | ||
331 | static inline void pqi_schedule_rescan_worker_delayed( | |
332 | struct pqi_ctrl_info *ctrl_info) | |
333 | { | |
334 | pqi_schedule_rescan_worker_with_delay(ctrl_info, PQI_RESCAN_WORK_DELAY); | |
6c223761 KB |
335 | } |
336 | ||
061ef06a KB |
337 | static inline void pqi_cancel_rescan_worker(struct pqi_ctrl_info *ctrl_info) |
338 | { | |
339 | cancel_delayed_work_sync(&ctrl_info->rescan_work); | |
340 | } | |
341 | ||
98f87667 KB |
342 | static inline u32 pqi_read_heartbeat_counter(struct pqi_ctrl_info *ctrl_info) |
343 | { | |
344 | if (!ctrl_info->heartbeat_counter) | |
345 | return 0; | |
346 | ||
347 | return readl(ctrl_info->heartbeat_counter); | |
348 | } | |
349 | ||
6c223761 KB |
350 | static int pqi_map_single(struct pci_dev *pci_dev, |
351 | struct pqi_sg_descriptor *sg_descriptor, void *buffer, | |
352 | size_t buffer_length, int data_direction) | |
353 | { | |
354 | dma_addr_t bus_address; | |
355 | ||
356 | if (!buffer || buffer_length == 0 || data_direction == PCI_DMA_NONE) | |
357 | return 0; | |
358 | ||
359 | bus_address = pci_map_single(pci_dev, buffer, buffer_length, | |
360 | data_direction); | |
361 | if (pci_dma_mapping_error(pci_dev, bus_address)) | |
362 | return -ENOMEM; | |
363 | ||
364 | put_unaligned_le64((u64)bus_address, &sg_descriptor->address); | |
365 | put_unaligned_le32(buffer_length, &sg_descriptor->length); | |
366 | put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags); | |
367 | ||
368 | return 0; | |
369 | } | |
370 | ||
371 | static void pqi_pci_unmap(struct pci_dev *pci_dev, | |
372 | struct pqi_sg_descriptor *descriptors, int num_descriptors, | |
373 | int data_direction) | |
374 | { | |
375 | int i; | |
376 | ||
377 | if (data_direction == PCI_DMA_NONE) | |
378 | return; | |
379 | ||
380 | for (i = 0; i < num_descriptors; i++) | |
381 | pci_unmap_single(pci_dev, | |
382 | (dma_addr_t)get_unaligned_le64(&descriptors[i].address), | |
383 | get_unaligned_le32(&descriptors[i].length), | |
384 | data_direction); | |
385 | } | |
386 | ||
387 | static int pqi_build_raid_path_request(struct pqi_ctrl_info *ctrl_info, | |
388 | struct pqi_raid_path_request *request, u8 cmd, | |
389 | u8 *scsi3addr, void *buffer, size_t buffer_length, | |
390 | u16 vpd_page, int *pci_direction) | |
391 | { | |
392 | u8 *cdb; | |
393 | int pci_dir; | |
394 | ||
395 | memset(request, 0, sizeof(*request)); | |
396 | ||
397 | request->header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO; | |
398 | put_unaligned_le16(offsetof(struct pqi_raid_path_request, | |
399 | sg_descriptors[1]) - PQI_REQUEST_HEADER_LENGTH, | |
400 | &request->header.iu_length); | |
401 | put_unaligned_le32(buffer_length, &request->buffer_length); | |
402 | memcpy(request->lun_number, scsi3addr, sizeof(request->lun_number)); | |
403 | request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; | |
404 | request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0; | |
405 | ||
406 | cdb = request->cdb; | |
407 | ||
408 | switch (cmd) { | |
409 | case INQUIRY: | |
410 | request->data_direction = SOP_READ_FLAG; | |
411 | cdb[0] = INQUIRY; | |
412 | if (vpd_page & VPD_PAGE) { | |
413 | cdb[1] = 0x1; | |
414 | cdb[2] = (u8)vpd_page; | |
415 | } | |
416 | cdb[4] = (u8)buffer_length; | |
417 | break; | |
418 | case CISS_REPORT_LOG: | |
419 | case CISS_REPORT_PHYS: | |
420 | request->data_direction = SOP_READ_FLAG; | |
421 | cdb[0] = cmd; | |
422 | if (cmd == CISS_REPORT_PHYS) | |
423 | cdb[1] = CISS_REPORT_PHYS_EXTENDED; | |
424 | else | |
425 | cdb[1] = CISS_REPORT_LOG_EXTENDED; | |
426 | put_unaligned_be32(buffer_length, &cdb[6]); | |
427 | break; | |
428 | case CISS_GET_RAID_MAP: | |
429 | request->data_direction = SOP_READ_FLAG; | |
430 | cdb[0] = CISS_READ; | |
431 | cdb[1] = CISS_GET_RAID_MAP; | |
432 | put_unaligned_be32(buffer_length, &cdb[6]); | |
433 | break; | |
434 | case SA_CACHE_FLUSH: | |
435 | request->data_direction = SOP_WRITE_FLAG; | |
436 | cdb[0] = BMIC_WRITE; | |
437 | cdb[6] = BMIC_CACHE_FLUSH; | |
438 | put_unaligned_be16(buffer_length, &cdb[7]); | |
439 | break; | |
440 | case BMIC_IDENTIFY_CONTROLLER: | |
441 | case BMIC_IDENTIFY_PHYSICAL_DEVICE: | |
442 | request->data_direction = SOP_READ_FLAG; | |
443 | cdb[0] = BMIC_READ; | |
444 | cdb[6] = cmd; | |
445 | put_unaligned_be16(buffer_length, &cdb[7]); | |
446 | break; | |
447 | case BMIC_WRITE_HOST_WELLNESS: | |
448 | request->data_direction = SOP_WRITE_FLAG; | |
449 | cdb[0] = BMIC_WRITE; | |
450 | cdb[6] = cmd; | |
451 | put_unaligned_be16(buffer_length, &cdb[7]); | |
452 | break; | |
453 | default: | |
454 | dev_err(&ctrl_info->pci_dev->dev, "unknown command 0x%c\n", | |
455 | cmd); | |
6c223761 KB |
456 | break; |
457 | } | |
458 | ||
459 | switch (request->data_direction) { | |
460 | case SOP_READ_FLAG: | |
461 | pci_dir = PCI_DMA_FROMDEVICE; | |
462 | break; | |
463 | case SOP_WRITE_FLAG: | |
464 | pci_dir = PCI_DMA_TODEVICE; | |
465 | break; | |
466 | case SOP_NO_DIRECTION_FLAG: | |
467 | pci_dir = PCI_DMA_NONE; | |
468 | break; | |
469 | default: | |
470 | pci_dir = PCI_DMA_BIDIRECTIONAL; | |
471 | break; | |
472 | } | |
473 | ||
474 | *pci_direction = pci_dir; | |
475 | ||
476 | return pqi_map_single(ctrl_info->pci_dev, &request->sg_descriptors[0], | |
477 | buffer, buffer_length, pci_dir); | |
478 | } | |
479 | ||
376fb880 KB |
480 | static inline void pqi_reinit_io_request(struct pqi_io_request *io_request) |
481 | { | |
482 | io_request->scmd = NULL; | |
483 | io_request->status = 0; | |
484 | io_request->error_info = NULL; | |
485 | io_request->raid_bypass = false; | |
486 | } | |
487 | ||
6c223761 KB |
488 | static struct pqi_io_request *pqi_alloc_io_request( |
489 | struct pqi_ctrl_info *ctrl_info) | |
490 | { | |
491 | struct pqi_io_request *io_request; | |
492 | u16 i = ctrl_info->next_io_request_slot; /* benignly racy */ | |
493 | ||
494 | while (1) { | |
495 | io_request = &ctrl_info->io_request_pool[i]; | |
496 | if (atomic_inc_return(&io_request->refcount) == 1) | |
497 | break; | |
498 | atomic_dec(&io_request->refcount); | |
499 | i = (i + 1) % ctrl_info->max_io_slots; | |
500 | } | |
501 | ||
502 | /* benignly racy */ | |
503 | ctrl_info->next_io_request_slot = (i + 1) % ctrl_info->max_io_slots; | |
504 | ||
376fb880 | 505 | pqi_reinit_io_request(io_request); |
6c223761 KB |
506 | |
507 | return io_request; | |
508 | } | |
509 | ||
510 | static void pqi_free_io_request(struct pqi_io_request *io_request) | |
511 | { | |
512 | atomic_dec(&io_request->refcount); | |
513 | } | |
514 | ||
515 | static int pqi_identify_controller(struct pqi_ctrl_info *ctrl_info, | |
516 | struct bmic_identify_controller *buffer) | |
517 | { | |
518 | int rc; | |
519 | int pci_direction; | |
520 | struct pqi_raid_path_request request; | |
521 | ||
522 | rc = pqi_build_raid_path_request(ctrl_info, &request, | |
523 | BMIC_IDENTIFY_CONTROLLER, RAID_CTLR_LUNID, buffer, | |
524 | sizeof(*buffer), 0, &pci_direction); | |
525 | if (rc) | |
526 | return rc; | |
527 | ||
528 | rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, | |
529 | NULL, NO_TIMEOUT); | |
530 | ||
531 | pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, | |
532 | pci_direction); | |
533 | ||
534 | return rc; | |
535 | } | |
536 | ||
537 | static int pqi_scsi_inquiry(struct pqi_ctrl_info *ctrl_info, | |
538 | u8 *scsi3addr, u16 vpd_page, void *buffer, size_t buffer_length) | |
539 | { | |
540 | int rc; | |
541 | int pci_direction; | |
542 | struct pqi_raid_path_request request; | |
543 | ||
544 | rc = pqi_build_raid_path_request(ctrl_info, &request, | |
545 | INQUIRY, scsi3addr, buffer, buffer_length, vpd_page, | |
546 | &pci_direction); | |
547 | if (rc) | |
548 | return rc; | |
549 | ||
550 | rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, | |
551 | NULL, NO_TIMEOUT); | |
552 | ||
553 | pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, | |
554 | pci_direction); | |
555 | ||
556 | return rc; | |
557 | } | |
558 | ||
559 | static int pqi_identify_physical_device(struct pqi_ctrl_info *ctrl_info, | |
560 | struct pqi_scsi_dev *device, | |
561 | struct bmic_identify_physical_device *buffer, | |
562 | size_t buffer_length) | |
563 | { | |
564 | int rc; | |
565 | int pci_direction; | |
566 | u16 bmic_device_index; | |
567 | struct pqi_raid_path_request request; | |
568 | ||
569 | rc = pqi_build_raid_path_request(ctrl_info, &request, | |
570 | BMIC_IDENTIFY_PHYSICAL_DEVICE, RAID_CTLR_LUNID, buffer, | |
571 | buffer_length, 0, &pci_direction); | |
572 | if (rc) | |
573 | return rc; | |
574 | ||
575 | bmic_device_index = CISS_GET_DRIVE_NUMBER(device->scsi3addr); | |
576 | request.cdb[2] = (u8)bmic_device_index; | |
577 | request.cdb[9] = (u8)(bmic_device_index >> 8); | |
578 | ||
579 | rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, | |
580 | 0, NULL, NO_TIMEOUT); | |
581 | ||
582 | pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, | |
583 | pci_direction); | |
584 | ||
585 | return rc; | |
586 | } | |
587 | ||
588 | #define SA_CACHE_FLUSH_BUFFER_LENGTH 4 | |
6c223761 KB |
589 | |
590 | static int pqi_flush_cache(struct pqi_ctrl_info *ctrl_info) | |
591 | { | |
592 | int rc; | |
593 | struct pqi_raid_path_request request; | |
594 | int pci_direction; | |
595 | u8 *buffer; | |
596 | ||
597 | /* | |
598 | * Don't bother trying to flush the cache if the controller is | |
599 | * locked up. | |
600 | */ | |
601 | if (pqi_ctrl_offline(ctrl_info)) | |
602 | return -ENXIO; | |
603 | ||
604 | buffer = kzalloc(SA_CACHE_FLUSH_BUFFER_LENGTH, GFP_KERNEL); | |
605 | if (!buffer) | |
606 | return -ENOMEM; | |
607 | ||
608 | rc = pqi_build_raid_path_request(ctrl_info, &request, | |
609 | SA_CACHE_FLUSH, RAID_CTLR_LUNID, buffer, | |
610 | SA_CACHE_FLUSH_BUFFER_LENGTH, 0, &pci_direction); | |
611 | if (rc) | |
612 | goto out; | |
613 | ||
614 | rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, | |
d48f8fad | 615 | 0, NULL, NO_TIMEOUT); |
6c223761 KB |
616 | |
617 | pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, | |
618 | pci_direction); | |
619 | ||
620 | out: | |
621 | kfree(buffer); | |
622 | ||
623 | return rc; | |
624 | } | |
625 | ||
626 | static int pqi_write_host_wellness(struct pqi_ctrl_info *ctrl_info, | |
627 | void *buffer, size_t buffer_length) | |
628 | { | |
629 | int rc; | |
630 | struct pqi_raid_path_request request; | |
631 | int pci_direction; | |
632 | ||
633 | rc = pqi_build_raid_path_request(ctrl_info, &request, | |
634 | BMIC_WRITE_HOST_WELLNESS, RAID_CTLR_LUNID, buffer, | |
635 | buffer_length, 0, &pci_direction); | |
636 | if (rc) | |
637 | return rc; | |
638 | ||
639 | rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, | |
640 | 0, NULL, NO_TIMEOUT); | |
641 | ||
642 | pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, | |
643 | pci_direction); | |
644 | ||
645 | return rc; | |
646 | } | |
647 | ||
648 | #pragma pack(1) | |
649 | ||
650 | struct bmic_host_wellness_driver_version { | |
651 | u8 start_tag[4]; | |
652 | u8 driver_version_tag[2]; | |
653 | __le16 driver_version_length; | |
654 | char driver_version[32]; | |
655 | u8 end_tag[2]; | |
656 | }; | |
657 | ||
658 | #pragma pack() | |
659 | ||
660 | static int pqi_write_driver_version_to_host_wellness( | |
661 | struct pqi_ctrl_info *ctrl_info) | |
662 | { | |
663 | int rc; | |
664 | struct bmic_host_wellness_driver_version *buffer; | |
665 | size_t buffer_length; | |
666 | ||
667 | buffer_length = sizeof(*buffer); | |
668 | ||
669 | buffer = kmalloc(buffer_length, GFP_KERNEL); | |
670 | if (!buffer) | |
671 | return -ENOMEM; | |
672 | ||
673 | buffer->start_tag[0] = '<'; | |
674 | buffer->start_tag[1] = 'H'; | |
675 | buffer->start_tag[2] = 'W'; | |
676 | buffer->start_tag[3] = '>'; | |
677 | buffer->driver_version_tag[0] = 'D'; | |
678 | buffer->driver_version_tag[1] = 'V'; | |
679 | put_unaligned_le16(sizeof(buffer->driver_version), | |
680 | &buffer->driver_version_length); | |
061ef06a | 681 | strncpy(buffer->driver_version, "Linux " DRIVER_VERSION, |
6c223761 KB |
682 | sizeof(buffer->driver_version) - 1); |
683 | buffer->driver_version[sizeof(buffer->driver_version) - 1] = '\0'; | |
684 | buffer->end_tag[0] = 'Z'; | |
685 | buffer->end_tag[1] = 'Z'; | |
686 | ||
687 | rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length); | |
688 | ||
689 | kfree(buffer); | |
690 | ||
691 | return rc; | |
692 | } | |
693 | ||
694 | #pragma pack(1) | |
695 | ||
696 | struct bmic_host_wellness_time { | |
697 | u8 start_tag[4]; | |
698 | u8 time_tag[2]; | |
699 | __le16 time_length; | |
700 | u8 time[8]; | |
701 | u8 dont_write_tag[2]; | |
702 | u8 end_tag[2]; | |
703 | }; | |
704 | ||
705 | #pragma pack() | |
706 | ||
707 | static int pqi_write_current_time_to_host_wellness( | |
708 | struct pqi_ctrl_info *ctrl_info) | |
709 | { | |
710 | int rc; | |
711 | struct bmic_host_wellness_time *buffer; | |
712 | size_t buffer_length; | |
713 | time64_t local_time; | |
714 | unsigned int year; | |
ed10858e | 715 | struct tm tm; |
6c223761 KB |
716 | |
717 | buffer_length = sizeof(*buffer); | |
718 | ||
719 | buffer = kmalloc(buffer_length, GFP_KERNEL); | |
720 | if (!buffer) | |
721 | return -ENOMEM; | |
722 | ||
723 | buffer->start_tag[0] = '<'; | |
724 | buffer->start_tag[1] = 'H'; | |
725 | buffer->start_tag[2] = 'W'; | |
726 | buffer->start_tag[3] = '>'; | |
727 | buffer->time_tag[0] = 'T'; | |
728 | buffer->time_tag[1] = 'D'; | |
729 | put_unaligned_le16(sizeof(buffer->time), | |
730 | &buffer->time_length); | |
731 | ||
ed10858e AB |
732 | local_time = ktime_get_real_seconds(); |
733 | time64_to_tm(local_time, -sys_tz.tz_minuteswest * 60, &tm); | |
6c223761 KB |
734 | year = tm.tm_year + 1900; |
735 | ||
736 | buffer->time[0] = bin2bcd(tm.tm_hour); | |
737 | buffer->time[1] = bin2bcd(tm.tm_min); | |
738 | buffer->time[2] = bin2bcd(tm.tm_sec); | |
739 | buffer->time[3] = 0; | |
740 | buffer->time[4] = bin2bcd(tm.tm_mon + 1); | |
741 | buffer->time[5] = bin2bcd(tm.tm_mday); | |
742 | buffer->time[6] = bin2bcd(year / 100); | |
743 | buffer->time[7] = bin2bcd(year % 100); | |
744 | ||
745 | buffer->dont_write_tag[0] = 'D'; | |
746 | buffer->dont_write_tag[1] = 'W'; | |
747 | buffer->end_tag[0] = 'Z'; | |
748 | buffer->end_tag[1] = 'Z'; | |
749 | ||
750 | rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length); | |
751 | ||
752 | kfree(buffer); | |
753 | ||
754 | return rc; | |
755 | } | |
756 | ||
757 | #define PQI_UPDATE_TIME_WORK_INTERVAL (24UL * 60 * 60 * HZ) | |
758 | ||
759 | static void pqi_update_time_worker(struct work_struct *work) | |
760 | { | |
761 | int rc; | |
762 | struct pqi_ctrl_info *ctrl_info; | |
763 | ||
764 | ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info, | |
765 | update_time_work); | |
766 | ||
5f310425 KB |
767 | if (pqi_ctrl_offline(ctrl_info)) |
768 | return; | |
769 | ||
6c223761 KB |
770 | rc = pqi_write_current_time_to_host_wellness(ctrl_info); |
771 | if (rc) | |
772 | dev_warn(&ctrl_info->pci_dev->dev, | |
773 | "error updating time on controller\n"); | |
774 | ||
775 | schedule_delayed_work(&ctrl_info->update_time_work, | |
776 | PQI_UPDATE_TIME_WORK_INTERVAL); | |
777 | } | |
778 | ||
779 | static inline void pqi_schedule_update_time_worker( | |
4fbebf1a | 780 | struct pqi_ctrl_info *ctrl_info) |
6c223761 | 781 | { |
4fbebf1a | 782 | schedule_delayed_work(&ctrl_info->update_time_work, 0); |
061ef06a KB |
783 | } |
784 | ||
785 | static inline void pqi_cancel_update_time_worker( | |
786 | struct pqi_ctrl_info *ctrl_info) | |
787 | { | |
061ef06a | 788 | cancel_delayed_work_sync(&ctrl_info->update_time_work); |
6c223761 KB |
789 | } |
790 | ||
791 | static int pqi_report_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd, | |
792 | void *buffer, size_t buffer_length) | |
793 | { | |
794 | int rc; | |
795 | int pci_direction; | |
796 | struct pqi_raid_path_request request; | |
797 | ||
798 | rc = pqi_build_raid_path_request(ctrl_info, &request, | |
799 | cmd, RAID_CTLR_LUNID, buffer, buffer_length, 0, &pci_direction); | |
800 | if (rc) | |
801 | return rc; | |
802 | ||
803 | rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, | |
804 | NULL, NO_TIMEOUT); | |
805 | ||
806 | pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, | |
807 | pci_direction); | |
808 | ||
809 | return rc; | |
810 | } | |
811 | ||
812 | static int pqi_report_phys_logical_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd, | |
813 | void **buffer) | |
814 | { | |
815 | int rc; | |
816 | size_t lun_list_length; | |
817 | size_t lun_data_length; | |
818 | size_t new_lun_list_length; | |
819 | void *lun_data = NULL; | |
820 | struct report_lun_header *report_lun_header; | |
821 | ||
822 | report_lun_header = kmalloc(sizeof(*report_lun_header), GFP_KERNEL); | |
823 | if (!report_lun_header) { | |
824 | rc = -ENOMEM; | |
825 | goto out; | |
826 | } | |
827 | ||
828 | rc = pqi_report_luns(ctrl_info, cmd, report_lun_header, | |
829 | sizeof(*report_lun_header)); | |
830 | if (rc) | |
831 | goto out; | |
832 | ||
833 | lun_list_length = get_unaligned_be32(&report_lun_header->list_length); | |
834 | ||
835 | again: | |
836 | lun_data_length = sizeof(struct report_lun_header) + lun_list_length; | |
837 | ||
838 | lun_data = kmalloc(lun_data_length, GFP_KERNEL); | |
839 | if (!lun_data) { | |
840 | rc = -ENOMEM; | |
841 | goto out; | |
842 | } | |
843 | ||
844 | if (lun_list_length == 0) { | |
845 | memcpy(lun_data, report_lun_header, sizeof(*report_lun_header)); | |
846 | goto out; | |
847 | } | |
848 | ||
849 | rc = pqi_report_luns(ctrl_info, cmd, lun_data, lun_data_length); | |
850 | if (rc) | |
851 | goto out; | |
852 | ||
853 | new_lun_list_length = get_unaligned_be32( | |
854 | &((struct report_lun_header *)lun_data)->list_length); | |
855 | ||
856 | if (new_lun_list_length > lun_list_length) { | |
857 | lun_list_length = new_lun_list_length; | |
858 | kfree(lun_data); | |
859 | goto again; | |
860 | } | |
861 | ||
862 | out: | |
863 | kfree(report_lun_header); | |
864 | ||
865 | if (rc) { | |
866 | kfree(lun_data); | |
867 | lun_data = NULL; | |
868 | } | |
869 | ||
870 | *buffer = lun_data; | |
871 | ||
872 | return rc; | |
873 | } | |
874 | ||
875 | static inline int pqi_report_phys_luns(struct pqi_ctrl_info *ctrl_info, | |
876 | void **buffer) | |
877 | { | |
878 | return pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_PHYS, | |
879 | buffer); | |
880 | } | |
881 | ||
882 | static inline int pqi_report_logical_luns(struct pqi_ctrl_info *ctrl_info, | |
883 | void **buffer) | |
884 | { | |
885 | return pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_LOG, buffer); | |
886 | } | |
887 | ||
888 | static int pqi_get_device_lists(struct pqi_ctrl_info *ctrl_info, | |
889 | struct report_phys_lun_extended **physdev_list, | |
890 | struct report_log_lun_extended **logdev_list) | |
891 | { | |
892 | int rc; | |
893 | size_t logdev_list_length; | |
894 | size_t logdev_data_length; | |
895 | struct report_log_lun_extended *internal_logdev_list; | |
896 | struct report_log_lun_extended *logdev_data; | |
897 | struct report_lun_header report_lun_header; | |
898 | ||
899 | rc = pqi_report_phys_luns(ctrl_info, (void **)physdev_list); | |
900 | if (rc) | |
901 | dev_err(&ctrl_info->pci_dev->dev, | |
902 | "report physical LUNs failed\n"); | |
903 | ||
904 | rc = pqi_report_logical_luns(ctrl_info, (void **)logdev_list); | |
905 | if (rc) | |
906 | dev_err(&ctrl_info->pci_dev->dev, | |
907 | "report logical LUNs failed\n"); | |
908 | ||
909 | /* | |
910 | * Tack the controller itself onto the end of the logical device list. | |
911 | */ | |
912 | ||
913 | logdev_data = *logdev_list; | |
914 | ||
915 | if (logdev_data) { | |
916 | logdev_list_length = | |
917 | get_unaligned_be32(&logdev_data->header.list_length); | |
918 | } else { | |
919 | memset(&report_lun_header, 0, sizeof(report_lun_header)); | |
920 | logdev_data = | |
921 | (struct report_log_lun_extended *)&report_lun_header; | |
922 | logdev_list_length = 0; | |
923 | } | |
924 | ||
925 | logdev_data_length = sizeof(struct report_lun_header) + | |
926 | logdev_list_length; | |
927 | ||
928 | internal_logdev_list = kmalloc(logdev_data_length + | |
929 | sizeof(struct report_log_lun_extended), GFP_KERNEL); | |
930 | if (!internal_logdev_list) { | |
931 | kfree(*logdev_list); | |
932 | *logdev_list = NULL; | |
933 | return -ENOMEM; | |
934 | } | |
935 | ||
936 | memcpy(internal_logdev_list, logdev_data, logdev_data_length); | |
937 | memset((u8 *)internal_logdev_list + logdev_data_length, 0, | |
938 | sizeof(struct report_log_lun_extended_entry)); | |
939 | put_unaligned_be32(logdev_list_length + | |
940 | sizeof(struct report_log_lun_extended_entry), | |
941 | &internal_logdev_list->header.list_length); | |
942 | ||
943 | kfree(*logdev_list); | |
944 | *logdev_list = internal_logdev_list; | |
945 | ||
946 | return 0; | |
947 | } | |
948 | ||
949 | static inline void pqi_set_bus_target_lun(struct pqi_scsi_dev *device, | |
950 | int bus, int target, int lun) | |
951 | { | |
952 | device->bus = bus; | |
953 | device->target = target; | |
954 | device->lun = lun; | |
955 | } | |
956 | ||
957 | static void pqi_assign_bus_target_lun(struct pqi_scsi_dev *device) | |
958 | { | |
959 | u8 *scsi3addr; | |
960 | u32 lunid; | |
bd10cf0b KB |
961 | int bus; |
962 | int target; | |
963 | int lun; | |
6c223761 KB |
964 | |
965 | scsi3addr = device->scsi3addr; | |
966 | lunid = get_unaligned_le32(scsi3addr); | |
967 | ||
968 | if (pqi_is_hba_lunid(scsi3addr)) { | |
969 | /* The specified device is the controller. */ | |
970 | pqi_set_bus_target_lun(device, PQI_HBA_BUS, 0, lunid & 0x3fff); | |
971 | device->target_lun_valid = true; | |
972 | return; | |
973 | } | |
974 | ||
975 | if (pqi_is_logical_device(device)) { | |
bd10cf0b KB |
976 | if (device->is_external_raid_device) { |
977 | bus = PQI_EXTERNAL_RAID_VOLUME_BUS; | |
978 | target = (lunid >> 16) & 0x3fff; | |
979 | lun = lunid & 0xff; | |
980 | } else { | |
981 | bus = PQI_RAID_VOLUME_BUS; | |
982 | target = 0; | |
983 | lun = lunid & 0x3fff; | |
984 | } | |
985 | pqi_set_bus_target_lun(device, bus, target, lun); | |
6c223761 KB |
986 | device->target_lun_valid = true; |
987 | return; | |
988 | } | |
989 | ||
990 | /* | |
991 | * Defer target and LUN assignment for non-controller physical devices | |
992 | * because the SAS transport layer will make these assignments later. | |
993 | */ | |
994 | pqi_set_bus_target_lun(device, PQI_PHYSICAL_DEVICE_BUS, 0, 0); | |
995 | } | |
996 | ||
997 | static void pqi_get_raid_level(struct pqi_ctrl_info *ctrl_info, | |
998 | struct pqi_scsi_dev *device) | |
999 | { | |
1000 | int rc; | |
1001 | u8 raid_level; | |
1002 | u8 *buffer; | |
1003 | ||
1004 | raid_level = SA_RAID_UNKNOWN; | |
1005 | ||
1006 | buffer = kmalloc(64, GFP_KERNEL); | |
1007 | if (buffer) { | |
1008 | rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, | |
1009 | VPD_PAGE | CISS_VPD_LV_DEVICE_GEOMETRY, buffer, 64); | |
1010 | if (rc == 0) { | |
1011 | raid_level = buffer[8]; | |
1012 | if (raid_level > SA_RAID_MAX) | |
1013 | raid_level = SA_RAID_UNKNOWN; | |
1014 | } | |
1015 | kfree(buffer); | |
1016 | } | |
1017 | ||
1018 | device->raid_level = raid_level; | |
1019 | } | |
1020 | ||
1021 | static int pqi_validate_raid_map(struct pqi_ctrl_info *ctrl_info, | |
1022 | struct pqi_scsi_dev *device, struct raid_map *raid_map) | |
1023 | { | |
1024 | char *err_msg; | |
1025 | u32 raid_map_size; | |
1026 | u32 r5or6_blocks_per_row; | |
1027 | unsigned int num_phys_disks; | |
1028 | unsigned int num_raid_map_entries; | |
1029 | ||
1030 | raid_map_size = get_unaligned_le32(&raid_map->structure_size); | |
1031 | ||
1032 | if (raid_map_size < offsetof(struct raid_map, disk_data)) { | |
1033 | err_msg = "RAID map too small"; | |
1034 | goto bad_raid_map; | |
1035 | } | |
1036 | ||
1037 | if (raid_map_size > sizeof(*raid_map)) { | |
1038 | err_msg = "RAID map too large"; | |
1039 | goto bad_raid_map; | |
1040 | } | |
1041 | ||
1042 | num_phys_disks = get_unaligned_le16(&raid_map->layout_map_count) * | |
1043 | (get_unaligned_le16(&raid_map->data_disks_per_row) + | |
1044 | get_unaligned_le16(&raid_map->metadata_disks_per_row)); | |
1045 | num_raid_map_entries = num_phys_disks * | |
1046 | get_unaligned_le16(&raid_map->row_cnt); | |
1047 | ||
1048 | if (num_raid_map_entries > RAID_MAP_MAX_ENTRIES) { | |
1049 | err_msg = "invalid number of map entries in RAID map"; | |
1050 | goto bad_raid_map; | |
1051 | } | |
1052 | ||
1053 | if (device->raid_level == SA_RAID_1) { | |
1054 | if (get_unaligned_le16(&raid_map->layout_map_count) != 2) { | |
1055 | err_msg = "invalid RAID-1 map"; | |
1056 | goto bad_raid_map; | |
1057 | } | |
1058 | } else if (device->raid_level == SA_RAID_ADM) { | |
1059 | if (get_unaligned_le16(&raid_map->layout_map_count) != 3) { | |
1060 | err_msg = "invalid RAID-1(ADM) map"; | |
1061 | goto bad_raid_map; | |
1062 | } | |
1063 | } else if ((device->raid_level == SA_RAID_5 || | |
1064 | device->raid_level == SA_RAID_6) && | |
1065 | get_unaligned_le16(&raid_map->layout_map_count) > 1) { | |
1066 | /* RAID 50/60 */ | |
1067 | r5or6_blocks_per_row = | |
1068 | get_unaligned_le16(&raid_map->strip_size) * | |
1069 | get_unaligned_le16(&raid_map->data_disks_per_row); | |
1070 | if (r5or6_blocks_per_row == 0) { | |
1071 | err_msg = "invalid RAID-5 or RAID-6 map"; | |
1072 | goto bad_raid_map; | |
1073 | } | |
1074 | } | |
1075 | ||
1076 | return 0; | |
1077 | ||
1078 | bad_raid_map: | |
d87d5474 KB |
1079 | dev_warn(&ctrl_info->pci_dev->dev, |
1080 | "scsi %d:%d:%d:%d %s\n", | |
1081 | ctrl_info->scsi_host->host_no, | |
1082 | device->bus, device->target, device->lun, err_msg); | |
6c223761 KB |
1083 | |
1084 | return -EINVAL; | |
1085 | } | |
1086 | ||
1087 | static int pqi_get_raid_map(struct pqi_ctrl_info *ctrl_info, | |
1088 | struct pqi_scsi_dev *device) | |
1089 | { | |
1090 | int rc; | |
1091 | int pci_direction; | |
1092 | struct pqi_raid_path_request request; | |
1093 | struct raid_map *raid_map; | |
1094 | ||
1095 | raid_map = kmalloc(sizeof(*raid_map), GFP_KERNEL); | |
1096 | if (!raid_map) | |
1097 | return -ENOMEM; | |
1098 | ||
1099 | rc = pqi_build_raid_path_request(ctrl_info, &request, | |
1100 | CISS_GET_RAID_MAP, device->scsi3addr, raid_map, | |
1101 | sizeof(*raid_map), 0, &pci_direction); | |
1102 | if (rc) | |
1103 | goto error; | |
1104 | ||
1105 | rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, | |
1106 | NULL, NO_TIMEOUT); | |
1107 | ||
1108 | pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, | |
1109 | pci_direction); | |
1110 | ||
1111 | if (rc) | |
1112 | goto error; | |
1113 | ||
1114 | rc = pqi_validate_raid_map(ctrl_info, device, raid_map); | |
1115 | if (rc) | |
1116 | goto error; | |
1117 | ||
1118 | device->raid_map = raid_map; | |
1119 | ||
1120 | return 0; | |
1121 | ||
1122 | error: | |
1123 | kfree(raid_map); | |
1124 | ||
1125 | return rc; | |
1126 | } | |
1127 | ||
588a63fe | 1128 | static void pqi_get_raid_bypass_status(struct pqi_ctrl_info *ctrl_info, |
6c223761 KB |
1129 | struct pqi_scsi_dev *device) |
1130 | { | |
1131 | int rc; | |
1132 | u8 *buffer; | |
588a63fe | 1133 | u8 bypass_status; |
6c223761 KB |
1134 | |
1135 | buffer = kmalloc(64, GFP_KERNEL); | |
1136 | if (!buffer) | |
1137 | return; | |
1138 | ||
1139 | rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, | |
588a63fe | 1140 | VPD_PAGE | CISS_VPD_LV_BYPASS_STATUS, buffer, 64); |
6c223761 KB |
1141 | if (rc) |
1142 | goto out; | |
1143 | ||
588a63fe KB |
1144 | #define RAID_BYPASS_STATUS 4 |
1145 | #define RAID_BYPASS_CONFIGURED 0x1 | |
1146 | #define RAID_BYPASS_ENABLED 0x2 | |
6c223761 | 1147 | |
588a63fe KB |
1148 | bypass_status = buffer[RAID_BYPASS_STATUS]; |
1149 | device->raid_bypass_configured = | |
1150 | (bypass_status & RAID_BYPASS_CONFIGURED) != 0; | |
1151 | if (device->raid_bypass_configured && | |
1152 | (bypass_status & RAID_BYPASS_ENABLED) && | |
1153 | pqi_get_raid_map(ctrl_info, device) == 0) | |
1154 | device->raid_bypass_enabled = true; | |
6c223761 KB |
1155 | |
1156 | out: | |
1157 | kfree(buffer); | |
1158 | } | |
1159 | ||
1160 | /* | |
1161 | * Use vendor-specific VPD to determine online/offline status of a volume. | |
1162 | */ | |
1163 | ||
1164 | static void pqi_get_volume_status(struct pqi_ctrl_info *ctrl_info, | |
1165 | struct pqi_scsi_dev *device) | |
1166 | { | |
1167 | int rc; | |
1168 | size_t page_length; | |
1169 | u8 volume_status = CISS_LV_STATUS_UNAVAILABLE; | |
1170 | bool volume_offline = true; | |
1171 | u32 volume_flags; | |
1172 | struct ciss_vpd_logical_volume_status *vpd; | |
1173 | ||
1174 | vpd = kmalloc(sizeof(*vpd), GFP_KERNEL); | |
1175 | if (!vpd) | |
1176 | goto no_buffer; | |
1177 | ||
1178 | rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, | |
1179 | VPD_PAGE | CISS_VPD_LV_STATUS, vpd, sizeof(*vpd)); | |
1180 | if (rc) | |
1181 | goto out; | |
1182 | ||
1183 | page_length = offsetof(struct ciss_vpd_logical_volume_status, | |
1184 | volume_status) + vpd->page_length; | |
1185 | if (page_length < sizeof(*vpd)) | |
1186 | goto out; | |
1187 | ||
1188 | volume_status = vpd->volume_status; | |
1189 | volume_flags = get_unaligned_be32(&vpd->flags); | |
1190 | volume_offline = (volume_flags & CISS_LV_FLAGS_NO_HOST_IO) != 0; | |
1191 | ||
1192 | out: | |
1193 | kfree(vpd); | |
1194 | no_buffer: | |
1195 | device->volume_status = volume_status; | |
1196 | device->volume_offline = volume_offline; | |
1197 | } | |
1198 | ||
1199 | static int pqi_get_device_info(struct pqi_ctrl_info *ctrl_info, | |
1200 | struct pqi_scsi_dev *device) | |
1201 | { | |
1202 | int rc; | |
1203 | u8 *buffer; | |
1204 | ||
1205 | buffer = kmalloc(64, GFP_KERNEL); | |
1206 | if (!buffer) | |
1207 | return -ENOMEM; | |
1208 | ||
1209 | /* Send an inquiry to the device to see what it is. */ | |
1210 | rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 0, buffer, 64); | |
1211 | if (rc) | |
1212 | goto out; | |
1213 | ||
1214 | scsi_sanitize_inquiry_string(&buffer[8], 8); | |
1215 | scsi_sanitize_inquiry_string(&buffer[16], 16); | |
1216 | ||
1217 | device->devtype = buffer[0] & 0x1f; | |
cbe0c7b1 KB |
1218 | memcpy(device->vendor, &buffer[8], sizeof(device->vendor)); |
1219 | memcpy(device->model, &buffer[16], sizeof(device->model)); | |
6c223761 KB |
1220 | |
1221 | if (pqi_is_logical_device(device) && device->devtype == TYPE_DISK) { | |
bd10cf0b KB |
1222 | if (device->is_external_raid_device) { |
1223 | device->raid_level = SA_RAID_UNKNOWN; | |
1224 | device->volume_status = CISS_LV_OK; | |
1225 | device->volume_offline = false; | |
1226 | } else { | |
1227 | pqi_get_raid_level(ctrl_info, device); | |
588a63fe | 1228 | pqi_get_raid_bypass_status(ctrl_info, device); |
bd10cf0b KB |
1229 | pqi_get_volume_status(ctrl_info, device); |
1230 | } | |
6c223761 KB |
1231 | } |
1232 | ||
1233 | out: | |
1234 | kfree(buffer); | |
1235 | ||
1236 | return rc; | |
1237 | } | |
1238 | ||
1239 | static void pqi_get_physical_disk_info(struct pqi_ctrl_info *ctrl_info, | |
1240 | struct pqi_scsi_dev *device, | |
1241 | struct bmic_identify_physical_device *id_phys) | |
1242 | { | |
1243 | int rc; | |
1244 | ||
1245 | memset(id_phys, 0, sizeof(*id_phys)); | |
1246 | ||
1247 | rc = pqi_identify_physical_device(ctrl_info, device, | |
1248 | id_phys, sizeof(*id_phys)); | |
1249 | if (rc) { | |
1250 | device->queue_depth = PQI_PHYSICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH; | |
1251 | return; | |
1252 | } | |
1253 | ||
1254 | device->queue_depth = | |
1255 | get_unaligned_le16(&id_phys->current_queue_depth_limit); | |
1256 | device->device_type = id_phys->device_type; | |
1257 | device->active_path_index = id_phys->active_path_number; | |
1258 | device->path_map = id_phys->redundant_path_present_map; | |
1259 | memcpy(&device->box, | |
1260 | &id_phys->alternate_paths_phys_box_on_port, | |
1261 | sizeof(device->box)); | |
1262 | memcpy(&device->phys_connector, | |
1263 | &id_phys->alternate_paths_phys_connector, | |
1264 | sizeof(device->phys_connector)); | |
1265 | device->bay = id_phys->phys_bay_in_box; | |
1266 | } | |
1267 | ||
1268 | static void pqi_show_volume_status(struct pqi_ctrl_info *ctrl_info, | |
1269 | struct pqi_scsi_dev *device) | |
1270 | { | |
1271 | char *status; | |
1272 | static const char unknown_state_str[] = | |
1273 | "Volume is in an unknown state (%u)"; | |
1274 | char unknown_state_buffer[sizeof(unknown_state_str) + 10]; | |
1275 | ||
1276 | switch (device->volume_status) { | |
1277 | case CISS_LV_OK: | |
1278 | status = "Volume online"; | |
1279 | break; | |
1280 | case CISS_LV_FAILED: | |
1281 | status = "Volume failed"; | |
1282 | break; | |
1283 | case CISS_LV_NOT_CONFIGURED: | |
1284 | status = "Volume not configured"; | |
1285 | break; | |
1286 | case CISS_LV_DEGRADED: | |
1287 | status = "Volume degraded"; | |
1288 | break; | |
1289 | case CISS_LV_READY_FOR_RECOVERY: | |
1290 | status = "Volume ready for recovery operation"; | |
1291 | break; | |
1292 | case CISS_LV_UNDERGOING_RECOVERY: | |
1293 | status = "Volume undergoing recovery"; | |
1294 | break; | |
1295 | case CISS_LV_WRONG_PHYSICAL_DRIVE_REPLACED: | |
1296 | status = "Wrong physical drive was replaced"; | |
1297 | break; | |
1298 | case CISS_LV_PHYSICAL_DRIVE_CONNECTION_PROBLEM: | |
1299 | status = "A physical drive not properly connected"; | |
1300 | break; | |
1301 | case CISS_LV_HARDWARE_OVERHEATING: | |
1302 | status = "Hardware is overheating"; | |
1303 | break; | |
1304 | case CISS_LV_HARDWARE_HAS_OVERHEATED: | |
1305 | status = "Hardware has overheated"; | |
1306 | break; | |
1307 | case CISS_LV_UNDERGOING_EXPANSION: | |
1308 | status = "Volume undergoing expansion"; | |
1309 | break; | |
1310 | case CISS_LV_NOT_AVAILABLE: | |
1311 | status = "Volume waiting for transforming volume"; | |
1312 | break; | |
1313 | case CISS_LV_QUEUED_FOR_EXPANSION: | |
1314 | status = "Volume queued for expansion"; | |
1315 | break; | |
1316 | case CISS_LV_DISABLED_SCSI_ID_CONFLICT: | |
1317 | status = "Volume disabled due to SCSI ID conflict"; | |
1318 | break; | |
1319 | case CISS_LV_EJECTED: | |
1320 | status = "Volume has been ejected"; | |
1321 | break; | |
1322 | case CISS_LV_UNDERGOING_ERASE: | |
1323 | status = "Volume undergoing background erase"; | |
1324 | break; | |
1325 | case CISS_LV_READY_FOR_PREDICTIVE_SPARE_REBUILD: | |
1326 | status = "Volume ready for predictive spare rebuild"; | |
1327 | break; | |
1328 | case CISS_LV_UNDERGOING_RPI: | |
1329 | status = "Volume undergoing rapid parity initialization"; | |
1330 | break; | |
1331 | case CISS_LV_PENDING_RPI: | |
1332 | status = "Volume queued for rapid parity initialization"; | |
1333 | break; | |
1334 | case CISS_LV_ENCRYPTED_NO_KEY: | |
1335 | status = "Encrypted volume inaccessible - key not present"; | |
1336 | break; | |
1337 | case CISS_LV_UNDERGOING_ENCRYPTION: | |
1338 | status = "Volume undergoing encryption process"; | |
1339 | break; | |
1340 | case CISS_LV_UNDERGOING_ENCRYPTION_REKEYING: | |
1341 | status = "Volume undergoing encryption re-keying process"; | |
1342 | break; | |
1343 | case CISS_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER: | |
d87d5474 | 1344 | status = "Volume encrypted but encryption is disabled"; |
6c223761 KB |
1345 | break; |
1346 | case CISS_LV_PENDING_ENCRYPTION: | |
1347 | status = "Volume pending migration to encrypted state"; | |
1348 | break; | |
1349 | case CISS_LV_PENDING_ENCRYPTION_REKEYING: | |
1350 | status = "Volume pending encryption rekeying"; | |
1351 | break; | |
1352 | case CISS_LV_NOT_SUPPORTED: | |
1353 | status = "Volume not supported on this controller"; | |
1354 | break; | |
1355 | case CISS_LV_STATUS_UNAVAILABLE: | |
1356 | status = "Volume status not available"; | |
1357 | break; | |
1358 | default: | |
1359 | snprintf(unknown_state_buffer, sizeof(unknown_state_buffer), | |
1360 | unknown_state_str, device->volume_status); | |
1361 | status = unknown_state_buffer; | |
1362 | break; | |
1363 | } | |
1364 | ||
1365 | dev_info(&ctrl_info->pci_dev->dev, | |
1366 | "scsi %d:%d:%d:%d %s\n", | |
1367 | ctrl_info->scsi_host->host_no, | |
1368 | device->bus, device->target, device->lun, status); | |
1369 | } | |
1370 | ||
6c223761 KB |
1371 | static void pqi_rescan_worker(struct work_struct *work) |
1372 | { | |
1373 | struct pqi_ctrl_info *ctrl_info; | |
1374 | ||
1375 | ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info, | |
1376 | rescan_work); | |
1377 | ||
1378 | pqi_scan_scsi_devices(ctrl_info); | |
1379 | } | |
1380 | ||
1381 | static int pqi_add_device(struct pqi_ctrl_info *ctrl_info, | |
1382 | struct pqi_scsi_dev *device) | |
1383 | { | |
1384 | int rc; | |
1385 | ||
1386 | if (pqi_is_logical_device(device)) | |
1387 | rc = scsi_add_device(ctrl_info->scsi_host, device->bus, | |
1388 | device->target, device->lun); | |
1389 | else | |
1390 | rc = pqi_add_sas_device(ctrl_info->sas_host, device); | |
1391 | ||
1392 | return rc; | |
1393 | } | |
1394 | ||
1395 | static inline void pqi_remove_device(struct pqi_ctrl_info *ctrl_info, | |
1396 | struct pqi_scsi_dev *device) | |
1397 | { | |
1398 | if (pqi_is_logical_device(device)) | |
1399 | scsi_remove_device(device->sdev); | |
1400 | else | |
1401 | pqi_remove_sas_device(device); | |
1402 | } | |
1403 | ||
1404 | /* Assumes the SCSI device list lock is held. */ | |
1405 | ||
1406 | static struct pqi_scsi_dev *pqi_find_scsi_dev(struct pqi_ctrl_info *ctrl_info, | |
1407 | int bus, int target, int lun) | |
1408 | { | |
1409 | struct pqi_scsi_dev *device; | |
1410 | ||
1411 | list_for_each_entry(device, &ctrl_info->scsi_device_list, | |
1412 | scsi_device_list_entry) | |
1413 | if (device->bus == bus && device->target == target && | |
1414 | device->lun == lun) | |
1415 | return device; | |
1416 | ||
1417 | return NULL; | |
1418 | } | |
1419 | ||
1420 | static inline bool pqi_device_equal(struct pqi_scsi_dev *dev1, | |
1421 | struct pqi_scsi_dev *dev2) | |
1422 | { | |
1423 | if (dev1->is_physical_device != dev2->is_physical_device) | |
1424 | return false; | |
1425 | ||
1426 | if (dev1->is_physical_device) | |
1427 | return dev1->wwid == dev2->wwid; | |
1428 | ||
1429 | return memcmp(dev1->volume_id, dev2->volume_id, | |
1430 | sizeof(dev1->volume_id)) == 0; | |
1431 | } | |
1432 | ||
1433 | enum pqi_find_result { | |
1434 | DEVICE_NOT_FOUND, | |
1435 | DEVICE_CHANGED, | |
1436 | DEVICE_SAME, | |
1437 | }; | |
1438 | ||
1439 | static enum pqi_find_result pqi_scsi_find_entry(struct pqi_ctrl_info *ctrl_info, | |
1440 | struct pqi_scsi_dev *device_to_find, | |
1441 | struct pqi_scsi_dev **matching_device) | |
1442 | { | |
1443 | struct pqi_scsi_dev *device; | |
1444 | ||
1445 | list_for_each_entry(device, &ctrl_info->scsi_device_list, | |
1446 | scsi_device_list_entry) { | |
1447 | if (pqi_scsi3addr_equal(device_to_find->scsi3addr, | |
1448 | device->scsi3addr)) { | |
1449 | *matching_device = device; | |
1450 | if (pqi_device_equal(device_to_find, device)) { | |
1451 | if (device_to_find->volume_offline) | |
1452 | return DEVICE_CHANGED; | |
1453 | return DEVICE_SAME; | |
1454 | } | |
1455 | return DEVICE_CHANGED; | |
1456 | } | |
1457 | } | |
1458 | ||
1459 | return DEVICE_NOT_FOUND; | |
1460 | } | |
1461 | ||
6de783f6 KB |
1462 | #define PQI_DEV_INFO_BUFFER_LENGTH 128 |
1463 | ||
6c223761 KB |
1464 | static void pqi_dev_info(struct pqi_ctrl_info *ctrl_info, |
1465 | char *action, struct pqi_scsi_dev *device) | |
1466 | { | |
6de783f6 KB |
1467 | ssize_t count; |
1468 | char buffer[PQI_DEV_INFO_BUFFER_LENGTH]; | |
1469 | ||
1470 | count = snprintf(buffer, PQI_DEV_INFO_BUFFER_LENGTH, | |
1471 | "%d:%d:", ctrl_info->scsi_host->host_no, device->bus); | |
1472 | ||
1473 | if (device->target_lun_valid) | |
1474 | count += snprintf(buffer + count, | |
1475 | PQI_DEV_INFO_BUFFER_LENGTH - count, | |
1476 | "%d:%d", | |
1477 | device->target, | |
1478 | device->lun); | |
1479 | else | |
1480 | count += snprintf(buffer + count, | |
1481 | PQI_DEV_INFO_BUFFER_LENGTH - count, | |
1482 | "-:-"); | |
1483 | ||
1484 | if (pqi_is_logical_device(device)) | |
1485 | count += snprintf(buffer + count, | |
1486 | PQI_DEV_INFO_BUFFER_LENGTH - count, | |
1487 | " %08x%08x", | |
1488 | *((u32 *)&device->scsi3addr), | |
1489 | *((u32 *)&device->scsi3addr[4])); | |
1490 | else | |
1491 | count += snprintf(buffer + count, | |
1492 | PQI_DEV_INFO_BUFFER_LENGTH - count, | |
1493 | " %016llx", device->sas_address); | |
1494 | ||
1495 | count += snprintf(buffer + count, PQI_DEV_INFO_BUFFER_LENGTH - count, | |
1496 | " %s %.8s %.16s ", | |
6c223761 KB |
1497 | scsi_device_type(device->devtype), |
1498 | device->vendor, | |
6de783f6 KB |
1499 | device->model); |
1500 | ||
1501 | if (pqi_is_logical_device(device)) { | |
1502 | if (device->devtype == TYPE_DISK) | |
1503 | count += snprintf(buffer + count, | |
1504 | PQI_DEV_INFO_BUFFER_LENGTH - count, | |
1505 | "SSDSmartPathCap%c En%c %-12s", | |
588a63fe KB |
1506 | device->raid_bypass_configured ? '+' : '-', |
1507 | device->raid_bypass_enabled ? '+' : '-', | |
6de783f6 KB |
1508 | pqi_raid_level_to_string(device->raid_level)); |
1509 | } else { | |
1510 | count += snprintf(buffer + count, | |
1511 | PQI_DEV_INFO_BUFFER_LENGTH - count, | |
1512 | "AIO%c", device->aio_enabled ? '+' : '-'); | |
1513 | if (device->devtype == TYPE_DISK || | |
1514 | device->devtype == TYPE_ZBC) | |
1515 | count += snprintf(buffer + count, | |
1516 | PQI_DEV_INFO_BUFFER_LENGTH - count, | |
1517 | " qd=%-6d", device->queue_depth); | |
1518 | } | |
1519 | ||
1520 | dev_info(&ctrl_info->pci_dev->dev, "%s %s\n", action, buffer); | |
6c223761 KB |
1521 | } |
1522 | ||
1523 | /* Assumes the SCSI device list lock is held. */ | |
1524 | ||
1525 | static void pqi_scsi_update_device(struct pqi_scsi_dev *existing_device, | |
1526 | struct pqi_scsi_dev *new_device) | |
1527 | { | |
1528 | existing_device->devtype = new_device->devtype; | |
1529 | existing_device->device_type = new_device->device_type; | |
1530 | existing_device->bus = new_device->bus; | |
1531 | if (new_device->target_lun_valid) { | |
1532 | existing_device->target = new_device->target; | |
1533 | existing_device->lun = new_device->lun; | |
1534 | existing_device->target_lun_valid = true; | |
1535 | } | |
1536 | ||
1537 | /* By definition, the scsi3addr and wwid fields are already the same. */ | |
1538 | ||
1539 | existing_device->is_physical_device = new_device->is_physical_device; | |
bd10cf0b KB |
1540 | existing_device->is_external_raid_device = |
1541 | new_device->is_external_raid_device; | |
6c223761 KB |
1542 | existing_device->aio_enabled = new_device->aio_enabled; |
1543 | memcpy(existing_device->vendor, new_device->vendor, | |
1544 | sizeof(existing_device->vendor)); | |
1545 | memcpy(existing_device->model, new_device->model, | |
1546 | sizeof(existing_device->model)); | |
1547 | existing_device->sas_address = new_device->sas_address; | |
1548 | existing_device->raid_level = new_device->raid_level; | |
1549 | existing_device->queue_depth = new_device->queue_depth; | |
1550 | existing_device->aio_handle = new_device->aio_handle; | |
1551 | existing_device->volume_status = new_device->volume_status; | |
1552 | existing_device->active_path_index = new_device->active_path_index; | |
1553 | existing_device->path_map = new_device->path_map; | |
1554 | existing_device->bay = new_device->bay; | |
1555 | memcpy(existing_device->box, new_device->box, | |
1556 | sizeof(existing_device->box)); | |
1557 | memcpy(existing_device->phys_connector, new_device->phys_connector, | |
1558 | sizeof(existing_device->phys_connector)); | |
6c223761 KB |
1559 | existing_device->offload_to_mirror = 0; |
1560 | kfree(existing_device->raid_map); | |
1561 | existing_device->raid_map = new_device->raid_map; | |
588a63fe KB |
1562 | existing_device->raid_bypass_configured = |
1563 | new_device->raid_bypass_configured; | |
1564 | existing_device->raid_bypass_enabled = | |
1565 | new_device->raid_bypass_enabled; | |
6c223761 KB |
1566 | |
1567 | /* To prevent this from being freed later. */ | |
1568 | new_device->raid_map = NULL; | |
1569 | } | |
1570 | ||
1571 | static inline void pqi_free_device(struct pqi_scsi_dev *device) | |
1572 | { | |
1573 | if (device) { | |
1574 | kfree(device->raid_map); | |
1575 | kfree(device); | |
1576 | } | |
1577 | } | |
1578 | ||
1579 | /* | |
1580 | * Called when exposing a new device to the OS fails in order to re-adjust | |
1581 | * our internal SCSI device list to match the SCSI ML's view. | |
1582 | */ | |
1583 | ||
1584 | static inline void pqi_fixup_botched_add(struct pqi_ctrl_info *ctrl_info, | |
1585 | struct pqi_scsi_dev *device) | |
1586 | { | |
1587 | unsigned long flags; | |
1588 | ||
1589 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
1590 | list_del(&device->scsi_device_list_entry); | |
1591 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); | |
1592 | ||
1593 | /* Allow the device structure to be freed later. */ | |
1594 | device->keep_device = false; | |
1595 | } | |
1596 | ||
1597 | static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info, | |
1598 | struct pqi_scsi_dev *new_device_list[], unsigned int num_new_devices) | |
1599 | { | |
1600 | int rc; | |
1601 | unsigned int i; | |
1602 | unsigned long flags; | |
1603 | enum pqi_find_result find_result; | |
1604 | struct pqi_scsi_dev *device; | |
1605 | struct pqi_scsi_dev *next; | |
1606 | struct pqi_scsi_dev *matching_device; | |
8a994a04 KB |
1607 | LIST_HEAD(add_list); |
1608 | LIST_HEAD(delete_list); | |
6c223761 KB |
1609 | |
1610 | /* | |
1611 | * The idea here is to do as little work as possible while holding the | |
1612 | * spinlock. That's why we go to great pains to defer anything other | |
1613 | * than updating the internal device list until after we release the | |
1614 | * spinlock. | |
1615 | */ | |
1616 | ||
1617 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
1618 | ||
1619 | /* Assume that all devices in the existing list have gone away. */ | |
1620 | list_for_each_entry(device, &ctrl_info->scsi_device_list, | |
1621 | scsi_device_list_entry) | |
1622 | device->device_gone = true; | |
1623 | ||
1624 | for (i = 0; i < num_new_devices; i++) { | |
1625 | device = new_device_list[i]; | |
1626 | ||
1627 | find_result = pqi_scsi_find_entry(ctrl_info, device, | |
1628 | &matching_device); | |
1629 | ||
1630 | switch (find_result) { | |
1631 | case DEVICE_SAME: | |
1632 | /* | |
1633 | * The newly found device is already in the existing | |
1634 | * device list. | |
1635 | */ | |
1636 | device->new_device = false; | |
1637 | matching_device->device_gone = false; | |
1638 | pqi_scsi_update_device(matching_device, device); | |
1639 | break; | |
1640 | case DEVICE_NOT_FOUND: | |
1641 | /* | |
1642 | * The newly found device is NOT in the existing device | |
1643 | * list. | |
1644 | */ | |
1645 | device->new_device = true; | |
1646 | break; | |
1647 | case DEVICE_CHANGED: | |
1648 | /* | |
1649 | * The original device has gone away and we need to add | |
1650 | * the new device. | |
1651 | */ | |
1652 | device->new_device = true; | |
1653 | break; | |
6c223761 KB |
1654 | } |
1655 | } | |
1656 | ||
1657 | /* Process all devices that have gone away. */ | |
1658 | list_for_each_entry_safe(device, next, &ctrl_info->scsi_device_list, | |
1659 | scsi_device_list_entry) { | |
1660 | if (device->device_gone) { | |
1661 | list_del(&device->scsi_device_list_entry); | |
1662 | list_add_tail(&device->delete_list_entry, &delete_list); | |
1663 | } | |
1664 | } | |
1665 | ||
1666 | /* Process all new devices. */ | |
1667 | for (i = 0; i < num_new_devices; i++) { | |
1668 | device = new_device_list[i]; | |
1669 | if (!device->new_device) | |
1670 | continue; | |
1671 | if (device->volume_offline) | |
1672 | continue; | |
1673 | list_add_tail(&device->scsi_device_list_entry, | |
1674 | &ctrl_info->scsi_device_list); | |
1675 | list_add_tail(&device->add_list_entry, &add_list); | |
1676 | /* To prevent this device structure from being freed later. */ | |
1677 | device->keep_device = true; | |
1678 | } | |
1679 | ||
6c223761 KB |
1680 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); |
1681 | ||
1682 | /* Remove all devices that have gone away. */ | |
1683 | list_for_each_entry_safe(device, next, &delete_list, | |
1684 | delete_list_entry) { | |
6c223761 KB |
1685 | if (device->volume_offline) { |
1686 | pqi_dev_info(ctrl_info, "offline", device); | |
1687 | pqi_show_volume_status(ctrl_info, device); | |
1688 | } else { | |
1689 | pqi_dev_info(ctrl_info, "removed", device); | |
1690 | } | |
6de783f6 KB |
1691 | if (device->sdev) |
1692 | pqi_remove_device(ctrl_info, device); | |
6c223761 KB |
1693 | list_del(&device->delete_list_entry); |
1694 | pqi_free_device(device); | |
1695 | } | |
1696 | ||
1697 | /* | |
1698 | * Notify the SCSI ML if the queue depth of any existing device has | |
1699 | * changed. | |
1700 | */ | |
1701 | list_for_each_entry(device, &ctrl_info->scsi_device_list, | |
1702 | scsi_device_list_entry) { | |
1703 | if (device->sdev && device->queue_depth != | |
1704 | device->advertised_queue_depth) { | |
1705 | device->advertised_queue_depth = device->queue_depth; | |
1706 | scsi_change_queue_depth(device->sdev, | |
1707 | device->advertised_queue_depth); | |
1708 | } | |
1709 | } | |
1710 | ||
1711 | /* Expose any new devices. */ | |
1712 | list_for_each_entry_safe(device, next, &add_list, add_list_entry) { | |
94086f5b | 1713 | if (!device->sdev) { |
6de783f6 | 1714 | pqi_dev_info(ctrl_info, "added", device); |
6c223761 KB |
1715 | rc = pqi_add_device(ctrl_info, device); |
1716 | if (rc) { | |
1717 | dev_warn(&ctrl_info->pci_dev->dev, | |
1718 | "scsi %d:%d:%d:%d addition failed, device not added\n", | |
1719 | ctrl_info->scsi_host->host_no, | |
1720 | device->bus, device->target, | |
1721 | device->lun); | |
1722 | pqi_fixup_botched_add(ctrl_info, device); | |
6c223761 KB |
1723 | } |
1724 | } | |
6c223761 KB |
1725 | } |
1726 | } | |
1727 | ||
1728 | static bool pqi_is_supported_device(struct pqi_scsi_dev *device) | |
1729 | { | |
1730 | bool is_supported = false; | |
1731 | ||
1732 | switch (device->devtype) { | |
1733 | case TYPE_DISK: | |
1734 | case TYPE_ZBC: | |
1735 | case TYPE_TAPE: | |
1736 | case TYPE_MEDIUM_CHANGER: | |
1737 | case TYPE_ENCLOSURE: | |
1738 | is_supported = true; | |
1739 | break; | |
1740 | case TYPE_RAID: | |
1741 | /* | |
1742 | * Only support the HBA controller itself as a RAID | |
1743 | * controller. If it's a RAID controller other than | |
376fb880 KB |
1744 | * the HBA itself (an external RAID controller, for |
1745 | * example), we don't support it. | |
6c223761 KB |
1746 | */ |
1747 | if (pqi_is_hba_lunid(device->scsi3addr)) | |
1748 | is_supported = true; | |
1749 | break; | |
1750 | } | |
1751 | ||
1752 | return is_supported; | |
1753 | } | |
1754 | ||
94086f5b | 1755 | static inline bool pqi_skip_device(u8 *scsi3addr) |
6c223761 | 1756 | { |
94086f5b KB |
1757 | /* Ignore all masked devices. */ |
1758 | if (MASKED_DEVICE(scsi3addr)) | |
6c223761 | 1759 | return true; |
6c223761 KB |
1760 | |
1761 | return false; | |
1762 | } | |
1763 | ||
6c223761 KB |
1764 | static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info) |
1765 | { | |
1766 | int i; | |
1767 | int rc; | |
8a994a04 | 1768 | LIST_HEAD(new_device_list_head); |
6c223761 KB |
1769 | struct report_phys_lun_extended *physdev_list = NULL; |
1770 | struct report_log_lun_extended *logdev_list = NULL; | |
1771 | struct report_phys_lun_extended_entry *phys_lun_ext_entry; | |
1772 | struct report_log_lun_extended_entry *log_lun_ext_entry; | |
1773 | struct bmic_identify_physical_device *id_phys = NULL; | |
1774 | u32 num_physicals; | |
1775 | u32 num_logicals; | |
1776 | struct pqi_scsi_dev **new_device_list = NULL; | |
1777 | struct pqi_scsi_dev *device; | |
1778 | struct pqi_scsi_dev *next; | |
1779 | unsigned int num_new_devices; | |
1780 | unsigned int num_valid_devices; | |
1781 | bool is_physical_device; | |
1782 | u8 *scsi3addr; | |
1783 | static char *out_of_memory_msg = | |
6de783f6 | 1784 | "failed to allocate memory, device discovery stopped"; |
6c223761 | 1785 | |
6c223761 KB |
1786 | rc = pqi_get_device_lists(ctrl_info, &physdev_list, &logdev_list); |
1787 | if (rc) | |
1788 | goto out; | |
1789 | ||
1790 | if (physdev_list) | |
1791 | num_physicals = | |
1792 | get_unaligned_be32(&physdev_list->header.list_length) | |
1793 | / sizeof(physdev_list->lun_entries[0]); | |
1794 | else | |
1795 | num_physicals = 0; | |
1796 | ||
1797 | if (logdev_list) | |
1798 | num_logicals = | |
1799 | get_unaligned_be32(&logdev_list->header.list_length) | |
1800 | / sizeof(logdev_list->lun_entries[0]); | |
1801 | else | |
1802 | num_logicals = 0; | |
1803 | ||
1804 | if (num_physicals) { | |
1805 | /* | |
1806 | * We need this buffer for calls to pqi_get_physical_disk_info() | |
1807 | * below. We allocate it here instead of inside | |
1808 | * pqi_get_physical_disk_info() because it's a fairly large | |
1809 | * buffer. | |
1810 | */ | |
1811 | id_phys = kmalloc(sizeof(*id_phys), GFP_KERNEL); | |
1812 | if (!id_phys) { | |
1813 | dev_warn(&ctrl_info->pci_dev->dev, "%s\n", | |
1814 | out_of_memory_msg); | |
1815 | rc = -ENOMEM; | |
1816 | goto out; | |
1817 | } | |
1818 | } | |
1819 | ||
1820 | num_new_devices = num_physicals + num_logicals; | |
1821 | ||
1822 | new_device_list = kmalloc(sizeof(*new_device_list) * | |
1823 | num_new_devices, GFP_KERNEL); | |
1824 | if (!new_device_list) { | |
1825 | dev_warn(&ctrl_info->pci_dev->dev, "%s\n", out_of_memory_msg); | |
1826 | rc = -ENOMEM; | |
1827 | goto out; | |
1828 | } | |
1829 | ||
1830 | for (i = 0; i < num_new_devices; i++) { | |
1831 | device = kzalloc(sizeof(*device), GFP_KERNEL); | |
1832 | if (!device) { | |
1833 | dev_warn(&ctrl_info->pci_dev->dev, "%s\n", | |
1834 | out_of_memory_msg); | |
1835 | rc = -ENOMEM; | |
1836 | goto out; | |
1837 | } | |
1838 | list_add_tail(&device->new_device_list_entry, | |
1839 | &new_device_list_head); | |
1840 | } | |
1841 | ||
1842 | device = NULL; | |
1843 | num_valid_devices = 0; | |
1844 | ||
1845 | for (i = 0; i < num_new_devices; i++) { | |
1846 | ||
1847 | if (i < num_physicals) { | |
1848 | is_physical_device = true; | |
1849 | phys_lun_ext_entry = &physdev_list->lun_entries[i]; | |
1850 | log_lun_ext_entry = NULL; | |
1851 | scsi3addr = phys_lun_ext_entry->lunid; | |
1852 | } else { | |
1853 | is_physical_device = false; | |
1854 | phys_lun_ext_entry = NULL; | |
1855 | log_lun_ext_entry = | |
1856 | &logdev_list->lun_entries[i - num_physicals]; | |
1857 | scsi3addr = log_lun_ext_entry->lunid; | |
1858 | } | |
1859 | ||
94086f5b | 1860 | if (is_physical_device && pqi_skip_device(scsi3addr)) |
6c223761 KB |
1861 | continue; |
1862 | ||
1863 | if (device) | |
1864 | device = list_next_entry(device, new_device_list_entry); | |
1865 | else | |
1866 | device = list_first_entry(&new_device_list_head, | |
1867 | struct pqi_scsi_dev, new_device_list_entry); | |
1868 | ||
1869 | memcpy(device->scsi3addr, scsi3addr, sizeof(device->scsi3addr)); | |
1870 | device->is_physical_device = is_physical_device; | |
bd10cf0b KB |
1871 | if (!is_physical_device) |
1872 | device->is_external_raid_device = | |
1873 | pqi_is_external_raid_addr(scsi3addr); | |
6c223761 KB |
1874 | |
1875 | /* Gather information about the device. */ | |
1876 | rc = pqi_get_device_info(ctrl_info, device); | |
1877 | if (rc == -ENOMEM) { | |
1878 | dev_warn(&ctrl_info->pci_dev->dev, "%s\n", | |
1879 | out_of_memory_msg); | |
1880 | goto out; | |
1881 | } | |
1882 | if (rc) { | |
6de783f6 KB |
1883 | if (device->is_physical_device) |
1884 | dev_warn(&ctrl_info->pci_dev->dev, | |
1885 | "obtaining device info failed, skipping physical device %016llx\n", | |
1886 | get_unaligned_be64( | |
1887 | &phys_lun_ext_entry->wwid)); | |
1888 | else | |
1889 | dev_warn(&ctrl_info->pci_dev->dev, | |
1890 | "obtaining device info failed, skipping logical device %08x%08x\n", | |
1891 | *((u32 *)&device->scsi3addr), | |
1892 | *((u32 *)&device->scsi3addr[4])); | |
6c223761 KB |
1893 | rc = 0; |
1894 | continue; | |
1895 | } | |
1896 | ||
1897 | if (!pqi_is_supported_device(device)) | |
1898 | continue; | |
1899 | ||
1900 | pqi_assign_bus_target_lun(device); | |
1901 | ||
6c223761 KB |
1902 | if (device->is_physical_device) { |
1903 | device->wwid = phys_lun_ext_entry->wwid; | |
1904 | if ((phys_lun_ext_entry->device_flags & | |
1905 | REPORT_PHYS_LUN_DEV_FLAG_AIO_ENABLED) && | |
1906 | phys_lun_ext_entry->aio_handle) | |
1907 | device->aio_enabled = true; | |
1908 | } else { | |
1909 | memcpy(device->volume_id, log_lun_ext_entry->volume_id, | |
1910 | sizeof(device->volume_id)); | |
1911 | } | |
1912 | ||
1913 | switch (device->devtype) { | |
1914 | case TYPE_DISK: | |
1915 | case TYPE_ZBC: | |
1916 | case TYPE_ENCLOSURE: | |
1917 | if (device->is_physical_device) { | |
1918 | device->sas_address = | |
1919 | get_unaligned_be64(&device->wwid); | |
1920 | if (device->devtype == TYPE_DISK || | |
1921 | device->devtype == TYPE_ZBC) { | |
1922 | device->aio_handle = | |
1923 | phys_lun_ext_entry->aio_handle; | |
1924 | pqi_get_physical_disk_info(ctrl_info, | |
1925 | device, id_phys); | |
1926 | } | |
1927 | } | |
1928 | break; | |
1929 | } | |
1930 | ||
1931 | new_device_list[num_valid_devices++] = device; | |
1932 | } | |
1933 | ||
1934 | pqi_update_device_list(ctrl_info, new_device_list, num_valid_devices); | |
1935 | ||
1936 | out: | |
1937 | list_for_each_entry_safe(device, next, &new_device_list_head, | |
1938 | new_device_list_entry) { | |
1939 | if (device->keep_device) | |
1940 | continue; | |
1941 | list_del(&device->new_device_list_entry); | |
1942 | pqi_free_device(device); | |
1943 | } | |
1944 | ||
1945 | kfree(new_device_list); | |
1946 | kfree(physdev_list); | |
1947 | kfree(logdev_list); | |
1948 | kfree(id_phys); | |
1949 | ||
1950 | return rc; | |
1951 | } | |
1952 | ||
1953 | static void pqi_remove_all_scsi_devices(struct pqi_ctrl_info *ctrl_info) | |
1954 | { | |
1955 | unsigned long flags; | |
1956 | struct pqi_scsi_dev *device; | |
6c223761 | 1957 | |
a37ef745 KB |
1958 | while (1) { |
1959 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
1960 | ||
1961 | device = list_first_entry_or_null(&ctrl_info->scsi_device_list, | |
1962 | struct pqi_scsi_dev, scsi_device_list_entry); | |
1963 | if (device) | |
1964 | list_del(&device->scsi_device_list_entry); | |
1965 | ||
1966 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, | |
1967 | flags); | |
1968 | ||
1969 | if (!device) | |
1970 | break; | |
6c223761 | 1971 | |
6c223761 KB |
1972 | if (device->sdev) |
1973 | pqi_remove_device(ctrl_info, device); | |
6c223761 KB |
1974 | pqi_free_device(device); |
1975 | } | |
6c223761 KB |
1976 | } |
1977 | ||
1978 | static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info) | |
1979 | { | |
1980 | int rc; | |
1981 | ||
1982 | if (pqi_ctrl_offline(ctrl_info)) | |
1983 | return -ENXIO; | |
1984 | ||
1985 | mutex_lock(&ctrl_info->scan_mutex); | |
1986 | ||
1987 | rc = pqi_update_scsi_devices(ctrl_info); | |
1988 | if (rc) | |
5f310425 | 1989 | pqi_schedule_rescan_worker_delayed(ctrl_info); |
6c223761 KB |
1990 | |
1991 | mutex_unlock(&ctrl_info->scan_mutex); | |
1992 | ||
1993 | return rc; | |
1994 | } | |
1995 | ||
1996 | static void pqi_scan_start(struct Scsi_Host *shost) | |
1997 | { | |
1998 | pqi_scan_scsi_devices(shost_to_hba(shost)); | |
1999 | } | |
2000 | ||
2001 | /* Returns TRUE if scan is finished. */ | |
2002 | ||
2003 | static int pqi_scan_finished(struct Scsi_Host *shost, | |
2004 | unsigned long elapsed_time) | |
2005 | { | |
2006 | struct pqi_ctrl_info *ctrl_info; | |
2007 | ||
2008 | ctrl_info = shost_priv(shost); | |
2009 | ||
2010 | return !mutex_is_locked(&ctrl_info->scan_mutex); | |
2011 | } | |
2012 | ||
061ef06a KB |
2013 | static void pqi_wait_until_scan_finished(struct pqi_ctrl_info *ctrl_info) |
2014 | { | |
2015 | mutex_lock(&ctrl_info->scan_mutex); | |
2016 | mutex_unlock(&ctrl_info->scan_mutex); | |
2017 | } | |
2018 | ||
2019 | static void pqi_wait_until_lun_reset_finished(struct pqi_ctrl_info *ctrl_info) | |
2020 | { | |
2021 | mutex_lock(&ctrl_info->lun_reset_mutex); | |
2022 | mutex_unlock(&ctrl_info->lun_reset_mutex); | |
2023 | } | |
2024 | ||
6c223761 KB |
2025 | static inline void pqi_set_encryption_info( |
2026 | struct pqi_encryption_info *encryption_info, struct raid_map *raid_map, | |
2027 | u64 first_block) | |
2028 | { | |
2029 | u32 volume_blk_size; | |
2030 | ||
2031 | /* | |
2032 | * Set the encryption tweak values based on logical block address. | |
2033 | * If the block size is 512, the tweak value is equal to the LBA. | |
2034 | * For other block sizes, tweak value is (LBA * block size) / 512. | |
2035 | */ | |
2036 | volume_blk_size = get_unaligned_le32(&raid_map->volume_blk_size); | |
2037 | if (volume_blk_size != 512) | |
2038 | first_block = (first_block * volume_blk_size) / 512; | |
2039 | ||
2040 | encryption_info->data_encryption_key_index = | |
2041 | get_unaligned_le16(&raid_map->data_encryption_key_index); | |
2042 | encryption_info->encrypt_tweak_lower = lower_32_bits(first_block); | |
2043 | encryption_info->encrypt_tweak_upper = upper_32_bits(first_block); | |
2044 | } | |
2045 | ||
2046 | /* | |
588a63fe | 2047 | * Attempt to perform RAID bypass mapping for a logical volume I/O. |
6c223761 KB |
2048 | */ |
2049 | ||
2050 | #define PQI_RAID_BYPASS_INELIGIBLE 1 | |
2051 | ||
2052 | static int pqi_raid_bypass_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info, | |
2053 | struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, | |
2054 | struct pqi_queue_group *queue_group) | |
2055 | { | |
2056 | struct raid_map *raid_map; | |
2057 | bool is_write = false; | |
2058 | u32 map_index; | |
2059 | u64 first_block; | |
2060 | u64 last_block; | |
2061 | u32 block_cnt; | |
2062 | u32 blocks_per_row; | |
2063 | u64 first_row; | |
2064 | u64 last_row; | |
2065 | u32 first_row_offset; | |
2066 | u32 last_row_offset; | |
2067 | u32 first_column; | |
2068 | u32 last_column; | |
2069 | u64 r0_first_row; | |
2070 | u64 r0_last_row; | |
2071 | u32 r5or6_blocks_per_row; | |
2072 | u64 r5or6_first_row; | |
2073 | u64 r5or6_last_row; | |
2074 | u32 r5or6_first_row_offset; | |
2075 | u32 r5or6_last_row_offset; | |
2076 | u32 r5or6_first_column; | |
2077 | u32 r5or6_last_column; | |
2078 | u16 data_disks_per_row; | |
2079 | u32 total_disks_per_row; | |
2080 | u16 layout_map_count; | |
2081 | u32 stripesize; | |
2082 | u16 strip_size; | |
2083 | u32 first_group; | |
2084 | u32 last_group; | |
2085 | u32 current_group; | |
2086 | u32 map_row; | |
2087 | u32 aio_handle; | |
2088 | u64 disk_block; | |
2089 | u32 disk_block_cnt; | |
2090 | u8 cdb[16]; | |
2091 | u8 cdb_length; | |
2092 | int offload_to_mirror; | |
2093 | struct pqi_encryption_info *encryption_info_ptr; | |
2094 | struct pqi_encryption_info encryption_info; | |
2095 | #if BITS_PER_LONG == 32 | |
2096 | u64 tmpdiv; | |
2097 | #endif | |
2098 | ||
2099 | /* Check for valid opcode, get LBA and block count. */ | |
2100 | switch (scmd->cmnd[0]) { | |
2101 | case WRITE_6: | |
2102 | is_write = true; | |
2103 | /* fall through */ | |
2104 | case READ_6: | |
e018ef57 B |
2105 | first_block = (u64)(((scmd->cmnd[1] & 0x1f) << 16) | |
2106 | (scmd->cmnd[2] << 8) | scmd->cmnd[3]); | |
6c223761 KB |
2107 | block_cnt = (u32)scmd->cmnd[4]; |
2108 | if (block_cnt == 0) | |
2109 | block_cnt = 256; | |
2110 | break; | |
2111 | case WRITE_10: | |
2112 | is_write = true; | |
2113 | /* fall through */ | |
2114 | case READ_10: | |
2115 | first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]); | |
2116 | block_cnt = (u32)get_unaligned_be16(&scmd->cmnd[7]); | |
2117 | break; | |
2118 | case WRITE_12: | |
2119 | is_write = true; | |
2120 | /* fall through */ | |
2121 | case READ_12: | |
2122 | first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]); | |
2123 | block_cnt = get_unaligned_be32(&scmd->cmnd[6]); | |
2124 | break; | |
2125 | case WRITE_16: | |
2126 | is_write = true; | |
2127 | /* fall through */ | |
2128 | case READ_16: | |
2129 | first_block = get_unaligned_be64(&scmd->cmnd[2]); | |
2130 | block_cnt = get_unaligned_be32(&scmd->cmnd[10]); | |
2131 | break; | |
2132 | default: | |
2133 | /* Process via normal I/O path. */ | |
2134 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2135 | } | |
2136 | ||
2137 | /* Check for write to non-RAID-0. */ | |
2138 | if (is_write && device->raid_level != SA_RAID_0) | |
2139 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2140 | ||
2141 | if (unlikely(block_cnt == 0)) | |
2142 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2143 | ||
2144 | last_block = first_block + block_cnt - 1; | |
2145 | raid_map = device->raid_map; | |
2146 | ||
2147 | /* Check for invalid block or wraparound. */ | |
2148 | if (last_block >= get_unaligned_le64(&raid_map->volume_blk_cnt) || | |
2149 | last_block < first_block) | |
2150 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2151 | ||
2152 | data_disks_per_row = get_unaligned_le16(&raid_map->data_disks_per_row); | |
2153 | strip_size = get_unaligned_le16(&raid_map->strip_size); | |
2154 | layout_map_count = get_unaligned_le16(&raid_map->layout_map_count); | |
2155 | ||
2156 | /* Calculate stripe information for the request. */ | |
2157 | blocks_per_row = data_disks_per_row * strip_size; | |
2158 | #if BITS_PER_LONG == 32 | |
2159 | tmpdiv = first_block; | |
2160 | do_div(tmpdiv, blocks_per_row); | |
2161 | first_row = tmpdiv; | |
2162 | tmpdiv = last_block; | |
2163 | do_div(tmpdiv, blocks_per_row); | |
2164 | last_row = tmpdiv; | |
2165 | first_row_offset = (u32)(first_block - (first_row * blocks_per_row)); | |
2166 | last_row_offset = (u32)(last_block - (last_row * blocks_per_row)); | |
2167 | tmpdiv = first_row_offset; | |
2168 | do_div(tmpdiv, strip_size); | |
2169 | first_column = tmpdiv; | |
2170 | tmpdiv = last_row_offset; | |
2171 | do_div(tmpdiv, strip_size); | |
2172 | last_column = tmpdiv; | |
2173 | #else | |
2174 | first_row = first_block / blocks_per_row; | |
2175 | last_row = last_block / blocks_per_row; | |
2176 | first_row_offset = (u32)(first_block - (first_row * blocks_per_row)); | |
2177 | last_row_offset = (u32)(last_block - (last_row * blocks_per_row)); | |
2178 | first_column = first_row_offset / strip_size; | |
2179 | last_column = last_row_offset / strip_size; | |
2180 | #endif | |
2181 | ||
2182 | /* If this isn't a single row/column then give to the controller. */ | |
2183 | if (first_row != last_row || first_column != last_column) | |
2184 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2185 | ||
2186 | /* Proceeding with driver mapping. */ | |
2187 | total_disks_per_row = data_disks_per_row + | |
2188 | get_unaligned_le16(&raid_map->metadata_disks_per_row); | |
2189 | map_row = ((u32)(first_row >> raid_map->parity_rotation_shift)) % | |
2190 | get_unaligned_le16(&raid_map->row_cnt); | |
2191 | map_index = (map_row * total_disks_per_row) + first_column; | |
2192 | ||
2193 | /* RAID 1 */ | |
2194 | if (device->raid_level == SA_RAID_1) { | |
2195 | if (device->offload_to_mirror) | |
2196 | map_index += data_disks_per_row; | |
2197 | device->offload_to_mirror = !device->offload_to_mirror; | |
2198 | } else if (device->raid_level == SA_RAID_ADM) { | |
2199 | /* RAID ADM */ | |
2200 | /* | |
2201 | * Handles N-way mirrors (R1-ADM) and R10 with # of drives | |
2202 | * divisible by 3. | |
2203 | */ | |
2204 | offload_to_mirror = device->offload_to_mirror; | |
2205 | if (offload_to_mirror == 0) { | |
2206 | /* use physical disk in the first mirrored group. */ | |
2207 | map_index %= data_disks_per_row; | |
2208 | } else { | |
2209 | do { | |
2210 | /* | |
2211 | * Determine mirror group that map_index | |
2212 | * indicates. | |
2213 | */ | |
2214 | current_group = map_index / data_disks_per_row; | |
2215 | ||
2216 | if (offload_to_mirror != current_group) { | |
2217 | if (current_group < | |
2218 | layout_map_count - 1) { | |
2219 | /* | |
2220 | * Select raid index from | |
2221 | * next group. | |
2222 | */ | |
2223 | map_index += data_disks_per_row; | |
2224 | current_group++; | |
2225 | } else { | |
2226 | /* | |
2227 | * Select raid index from first | |
2228 | * group. | |
2229 | */ | |
2230 | map_index %= data_disks_per_row; | |
2231 | current_group = 0; | |
2232 | } | |
2233 | } | |
2234 | } while (offload_to_mirror != current_group); | |
2235 | } | |
2236 | ||
2237 | /* Set mirror group to use next time. */ | |
2238 | offload_to_mirror = | |
2239 | (offload_to_mirror >= layout_map_count - 1) ? | |
2240 | 0 : offload_to_mirror + 1; | |
2241 | WARN_ON(offload_to_mirror >= layout_map_count); | |
2242 | device->offload_to_mirror = offload_to_mirror; | |
2243 | /* | |
2244 | * Avoid direct use of device->offload_to_mirror within this | |
2245 | * function since multiple threads might simultaneously | |
2246 | * increment it beyond the range of device->layout_map_count -1. | |
2247 | */ | |
2248 | } else if ((device->raid_level == SA_RAID_5 || | |
2249 | device->raid_level == SA_RAID_6) && layout_map_count > 1) { | |
2250 | /* RAID 50/60 */ | |
2251 | /* Verify first and last block are in same RAID group */ | |
2252 | r5or6_blocks_per_row = strip_size * data_disks_per_row; | |
2253 | stripesize = r5or6_blocks_per_row * layout_map_count; | |
2254 | #if BITS_PER_LONG == 32 | |
2255 | tmpdiv = first_block; | |
2256 | first_group = do_div(tmpdiv, stripesize); | |
2257 | tmpdiv = first_group; | |
2258 | do_div(tmpdiv, r5or6_blocks_per_row); | |
2259 | first_group = tmpdiv; | |
2260 | tmpdiv = last_block; | |
2261 | last_group = do_div(tmpdiv, stripesize); | |
2262 | tmpdiv = last_group; | |
2263 | do_div(tmpdiv, r5or6_blocks_per_row); | |
2264 | last_group = tmpdiv; | |
2265 | #else | |
2266 | first_group = (first_block % stripesize) / r5or6_blocks_per_row; | |
2267 | last_group = (last_block % stripesize) / r5or6_blocks_per_row; | |
2268 | #endif | |
2269 | if (first_group != last_group) | |
2270 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2271 | ||
2272 | /* Verify request is in a single row of RAID 5/6 */ | |
2273 | #if BITS_PER_LONG == 32 | |
2274 | tmpdiv = first_block; | |
2275 | do_div(tmpdiv, stripesize); | |
2276 | first_row = r5or6_first_row = r0_first_row = tmpdiv; | |
2277 | tmpdiv = last_block; | |
2278 | do_div(tmpdiv, stripesize); | |
2279 | r5or6_last_row = r0_last_row = tmpdiv; | |
2280 | #else | |
2281 | first_row = r5or6_first_row = r0_first_row = | |
2282 | first_block / stripesize; | |
2283 | r5or6_last_row = r0_last_row = last_block / stripesize; | |
2284 | #endif | |
2285 | if (r5or6_first_row != r5or6_last_row) | |
2286 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2287 | ||
2288 | /* Verify request is in a single column */ | |
2289 | #if BITS_PER_LONG == 32 | |
2290 | tmpdiv = first_block; | |
2291 | first_row_offset = do_div(tmpdiv, stripesize); | |
2292 | tmpdiv = first_row_offset; | |
2293 | first_row_offset = (u32)do_div(tmpdiv, r5or6_blocks_per_row); | |
2294 | r5or6_first_row_offset = first_row_offset; | |
2295 | tmpdiv = last_block; | |
2296 | r5or6_last_row_offset = do_div(tmpdiv, stripesize); | |
2297 | tmpdiv = r5or6_last_row_offset; | |
2298 | r5or6_last_row_offset = do_div(tmpdiv, r5or6_blocks_per_row); | |
2299 | tmpdiv = r5or6_first_row_offset; | |
2300 | do_div(tmpdiv, strip_size); | |
2301 | first_column = r5or6_first_column = tmpdiv; | |
2302 | tmpdiv = r5or6_last_row_offset; | |
2303 | do_div(tmpdiv, strip_size); | |
2304 | r5or6_last_column = tmpdiv; | |
2305 | #else | |
2306 | first_row_offset = r5or6_first_row_offset = | |
2307 | (u32)((first_block % stripesize) % | |
2308 | r5or6_blocks_per_row); | |
2309 | ||
2310 | r5or6_last_row_offset = | |
2311 | (u32)((last_block % stripesize) % | |
2312 | r5or6_blocks_per_row); | |
2313 | ||
2314 | first_column = r5or6_first_row_offset / strip_size; | |
2315 | r5or6_first_column = first_column; | |
2316 | r5or6_last_column = r5or6_last_row_offset / strip_size; | |
2317 | #endif | |
2318 | if (r5or6_first_column != r5or6_last_column) | |
2319 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2320 | ||
2321 | /* Request is eligible */ | |
2322 | map_row = | |
2323 | ((u32)(first_row >> raid_map->parity_rotation_shift)) % | |
2324 | get_unaligned_le16(&raid_map->row_cnt); | |
2325 | ||
2326 | map_index = (first_group * | |
2327 | (get_unaligned_le16(&raid_map->row_cnt) * | |
2328 | total_disks_per_row)) + | |
2329 | (map_row * total_disks_per_row) + first_column; | |
2330 | } | |
2331 | ||
2332 | if (unlikely(map_index >= RAID_MAP_MAX_ENTRIES)) | |
2333 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2334 | ||
2335 | aio_handle = raid_map->disk_data[map_index].aio_handle; | |
2336 | disk_block = get_unaligned_le64(&raid_map->disk_starting_blk) + | |
2337 | first_row * strip_size + | |
2338 | (first_row_offset - first_column * strip_size); | |
2339 | disk_block_cnt = block_cnt; | |
2340 | ||
2341 | /* Handle differing logical/physical block sizes. */ | |
2342 | if (raid_map->phys_blk_shift) { | |
2343 | disk_block <<= raid_map->phys_blk_shift; | |
2344 | disk_block_cnt <<= raid_map->phys_blk_shift; | |
2345 | } | |
2346 | ||
2347 | if (unlikely(disk_block_cnt > 0xffff)) | |
2348 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2349 | ||
2350 | /* Build the new CDB for the physical disk I/O. */ | |
2351 | if (disk_block > 0xffffffff) { | |
2352 | cdb[0] = is_write ? WRITE_16 : READ_16; | |
2353 | cdb[1] = 0; | |
2354 | put_unaligned_be64(disk_block, &cdb[2]); | |
2355 | put_unaligned_be32(disk_block_cnt, &cdb[10]); | |
2356 | cdb[14] = 0; | |
2357 | cdb[15] = 0; | |
2358 | cdb_length = 16; | |
2359 | } else { | |
2360 | cdb[0] = is_write ? WRITE_10 : READ_10; | |
2361 | cdb[1] = 0; | |
2362 | put_unaligned_be32((u32)disk_block, &cdb[2]); | |
2363 | cdb[6] = 0; | |
2364 | put_unaligned_be16((u16)disk_block_cnt, &cdb[7]); | |
2365 | cdb[9] = 0; | |
2366 | cdb_length = 10; | |
2367 | } | |
2368 | ||
2369 | if (get_unaligned_le16(&raid_map->flags) & | |
2370 | RAID_MAP_ENCRYPTION_ENABLED) { | |
2371 | pqi_set_encryption_info(&encryption_info, raid_map, | |
2372 | first_block); | |
2373 | encryption_info_ptr = &encryption_info; | |
2374 | } else { | |
2375 | encryption_info_ptr = NULL; | |
2376 | } | |
2377 | ||
2378 | return pqi_aio_submit_io(ctrl_info, scmd, aio_handle, | |
376fb880 | 2379 | cdb, cdb_length, queue_group, encryption_info_ptr, true); |
6c223761 KB |
2380 | } |
2381 | ||
2382 | #define PQI_STATUS_IDLE 0x0 | |
2383 | ||
2384 | #define PQI_CREATE_ADMIN_QUEUE_PAIR 1 | |
2385 | #define PQI_DELETE_ADMIN_QUEUE_PAIR 2 | |
2386 | ||
2387 | #define PQI_DEVICE_STATE_POWER_ON_AND_RESET 0x0 | |
2388 | #define PQI_DEVICE_STATE_STATUS_AVAILABLE 0x1 | |
2389 | #define PQI_DEVICE_STATE_ALL_REGISTERS_READY 0x2 | |
2390 | #define PQI_DEVICE_STATE_ADMIN_QUEUE_PAIR_READY 0x3 | |
2391 | #define PQI_DEVICE_STATE_ERROR 0x4 | |
2392 | ||
2393 | #define PQI_MODE_READY_TIMEOUT_SECS 30 | |
2394 | #define PQI_MODE_READY_POLL_INTERVAL_MSECS 1 | |
2395 | ||
2396 | static int pqi_wait_for_pqi_mode_ready(struct pqi_ctrl_info *ctrl_info) | |
2397 | { | |
2398 | struct pqi_device_registers __iomem *pqi_registers; | |
2399 | unsigned long timeout; | |
2400 | u64 signature; | |
2401 | u8 status; | |
2402 | ||
2403 | pqi_registers = ctrl_info->pqi_registers; | |
2404 | timeout = (PQI_MODE_READY_TIMEOUT_SECS * HZ) + jiffies; | |
2405 | ||
2406 | while (1) { | |
2407 | signature = readq(&pqi_registers->signature); | |
2408 | if (memcmp(&signature, PQI_DEVICE_SIGNATURE, | |
2409 | sizeof(signature)) == 0) | |
2410 | break; | |
2411 | if (time_after(jiffies, timeout)) { | |
2412 | dev_err(&ctrl_info->pci_dev->dev, | |
2413 | "timed out waiting for PQI signature\n"); | |
2414 | return -ETIMEDOUT; | |
2415 | } | |
2416 | msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS); | |
2417 | } | |
2418 | ||
2419 | while (1) { | |
2420 | status = readb(&pqi_registers->function_and_status_code); | |
2421 | if (status == PQI_STATUS_IDLE) | |
2422 | break; | |
2423 | if (time_after(jiffies, timeout)) { | |
2424 | dev_err(&ctrl_info->pci_dev->dev, | |
2425 | "timed out waiting for PQI IDLE\n"); | |
2426 | return -ETIMEDOUT; | |
2427 | } | |
2428 | msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS); | |
2429 | } | |
2430 | ||
2431 | while (1) { | |
2432 | if (readl(&pqi_registers->device_status) == | |
2433 | PQI_DEVICE_STATE_ALL_REGISTERS_READY) | |
2434 | break; | |
2435 | if (time_after(jiffies, timeout)) { | |
2436 | dev_err(&ctrl_info->pci_dev->dev, | |
2437 | "timed out waiting for PQI all registers ready\n"); | |
2438 | return -ETIMEDOUT; | |
2439 | } | |
2440 | msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS); | |
2441 | } | |
2442 | ||
2443 | return 0; | |
2444 | } | |
2445 | ||
2446 | static inline void pqi_aio_path_disabled(struct pqi_io_request *io_request) | |
2447 | { | |
2448 | struct pqi_scsi_dev *device; | |
2449 | ||
2450 | device = io_request->scmd->device->hostdata; | |
588a63fe | 2451 | device->raid_bypass_enabled = false; |
376fb880 | 2452 | device->aio_enabled = false; |
6c223761 KB |
2453 | } |
2454 | ||
d87d5474 | 2455 | static inline void pqi_take_device_offline(struct scsi_device *sdev, char *path) |
6c223761 KB |
2456 | { |
2457 | struct pqi_ctrl_info *ctrl_info; | |
e58081a7 | 2458 | struct pqi_scsi_dev *device; |
6c223761 | 2459 | |
03b288cf KB |
2460 | device = sdev->hostdata; |
2461 | if (device->device_offline) | |
2462 | return; | |
2463 | ||
2464 | device->device_offline = true; | |
2465 | scsi_device_set_state(sdev, SDEV_OFFLINE); | |
2466 | ctrl_info = shost_to_hba(sdev->host); | |
2467 | pqi_schedule_rescan_worker(ctrl_info); | |
2468 | dev_err(&ctrl_info->pci_dev->dev, "offlined %s scsi %d:%d:%d:%d\n", | |
2469 | path, ctrl_info->scsi_host->host_no, device->bus, | |
2470 | device->target, device->lun); | |
6c223761 KB |
2471 | } |
2472 | ||
2473 | static void pqi_process_raid_io_error(struct pqi_io_request *io_request) | |
2474 | { | |
2475 | u8 scsi_status; | |
2476 | u8 host_byte; | |
2477 | struct scsi_cmnd *scmd; | |
2478 | struct pqi_raid_error_info *error_info; | |
2479 | size_t sense_data_length; | |
2480 | int residual_count; | |
2481 | int xfer_count; | |
2482 | struct scsi_sense_hdr sshdr; | |
2483 | ||
2484 | scmd = io_request->scmd; | |
2485 | if (!scmd) | |
2486 | return; | |
2487 | ||
2488 | error_info = io_request->error_info; | |
2489 | scsi_status = error_info->status; | |
2490 | host_byte = DID_OK; | |
2491 | ||
f5b63206 KB |
2492 | switch (error_info->data_out_result) { |
2493 | case PQI_DATA_IN_OUT_GOOD: | |
2494 | break; | |
2495 | case PQI_DATA_IN_OUT_UNDERFLOW: | |
6c223761 KB |
2496 | xfer_count = |
2497 | get_unaligned_le32(&error_info->data_out_transferred); | |
2498 | residual_count = scsi_bufflen(scmd) - xfer_count; | |
2499 | scsi_set_resid(scmd, residual_count); | |
2500 | if (xfer_count < scmd->underflow) | |
2501 | host_byte = DID_SOFT_ERROR; | |
f5b63206 KB |
2502 | break; |
2503 | case PQI_DATA_IN_OUT_UNSOLICITED_ABORT: | |
2504 | case PQI_DATA_IN_OUT_ABORTED: | |
2505 | host_byte = DID_ABORT; | |
2506 | break; | |
2507 | case PQI_DATA_IN_OUT_TIMEOUT: | |
2508 | host_byte = DID_TIME_OUT; | |
2509 | break; | |
2510 | case PQI_DATA_IN_OUT_BUFFER_OVERFLOW: | |
2511 | case PQI_DATA_IN_OUT_PROTOCOL_ERROR: | |
2512 | case PQI_DATA_IN_OUT_BUFFER_ERROR: | |
2513 | case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA: | |
2514 | case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE: | |
2515 | case PQI_DATA_IN_OUT_ERROR: | |
2516 | case PQI_DATA_IN_OUT_HARDWARE_ERROR: | |
2517 | case PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR: | |
2518 | case PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT: | |
2519 | case PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED: | |
2520 | case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED: | |
2521 | case PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED: | |
2522 | case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST: | |
2523 | case PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION: | |
2524 | case PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED: | |
2525 | case PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ: | |
2526 | default: | |
2527 | host_byte = DID_ERROR; | |
2528 | break; | |
6c223761 KB |
2529 | } |
2530 | ||
2531 | sense_data_length = get_unaligned_le16(&error_info->sense_data_length); | |
2532 | if (sense_data_length == 0) | |
2533 | sense_data_length = | |
2534 | get_unaligned_le16(&error_info->response_data_length); | |
2535 | if (sense_data_length) { | |
2536 | if (sense_data_length > sizeof(error_info->data)) | |
2537 | sense_data_length = sizeof(error_info->data); | |
2538 | ||
2539 | if (scsi_status == SAM_STAT_CHECK_CONDITION && | |
2540 | scsi_normalize_sense(error_info->data, | |
2541 | sense_data_length, &sshdr) && | |
2542 | sshdr.sense_key == HARDWARE_ERROR && | |
2543 | sshdr.asc == 0x3e && | |
2544 | sshdr.ascq == 0x1) { | |
d87d5474 | 2545 | pqi_take_device_offline(scmd->device, "RAID"); |
6c223761 KB |
2546 | host_byte = DID_NO_CONNECT; |
2547 | } | |
2548 | ||
2549 | if (sense_data_length > SCSI_SENSE_BUFFERSIZE) | |
2550 | sense_data_length = SCSI_SENSE_BUFFERSIZE; | |
2551 | memcpy(scmd->sense_buffer, error_info->data, | |
2552 | sense_data_length); | |
2553 | } | |
2554 | ||
2555 | scmd->result = scsi_status; | |
2556 | set_host_byte(scmd, host_byte); | |
2557 | } | |
2558 | ||
2559 | static void pqi_process_aio_io_error(struct pqi_io_request *io_request) | |
2560 | { | |
2561 | u8 scsi_status; | |
2562 | u8 host_byte; | |
2563 | struct scsi_cmnd *scmd; | |
2564 | struct pqi_aio_error_info *error_info; | |
2565 | size_t sense_data_length; | |
2566 | int residual_count; | |
2567 | int xfer_count; | |
2568 | bool device_offline; | |
2569 | ||
2570 | scmd = io_request->scmd; | |
2571 | error_info = io_request->error_info; | |
2572 | host_byte = DID_OK; | |
2573 | sense_data_length = 0; | |
2574 | device_offline = false; | |
2575 | ||
2576 | switch (error_info->service_response) { | |
2577 | case PQI_AIO_SERV_RESPONSE_COMPLETE: | |
2578 | scsi_status = error_info->status; | |
2579 | break; | |
2580 | case PQI_AIO_SERV_RESPONSE_FAILURE: | |
2581 | switch (error_info->status) { | |
2582 | case PQI_AIO_STATUS_IO_ABORTED: | |
2583 | scsi_status = SAM_STAT_TASK_ABORTED; | |
2584 | break; | |
2585 | case PQI_AIO_STATUS_UNDERRUN: | |
2586 | scsi_status = SAM_STAT_GOOD; | |
2587 | residual_count = get_unaligned_le32( | |
2588 | &error_info->residual_count); | |
2589 | scsi_set_resid(scmd, residual_count); | |
2590 | xfer_count = scsi_bufflen(scmd) - residual_count; | |
2591 | if (xfer_count < scmd->underflow) | |
2592 | host_byte = DID_SOFT_ERROR; | |
2593 | break; | |
2594 | case PQI_AIO_STATUS_OVERRUN: | |
2595 | scsi_status = SAM_STAT_GOOD; | |
2596 | break; | |
2597 | case PQI_AIO_STATUS_AIO_PATH_DISABLED: | |
2598 | pqi_aio_path_disabled(io_request); | |
2599 | scsi_status = SAM_STAT_GOOD; | |
2600 | io_request->status = -EAGAIN; | |
2601 | break; | |
2602 | case PQI_AIO_STATUS_NO_PATH_TO_DEVICE: | |
2603 | case PQI_AIO_STATUS_INVALID_DEVICE: | |
376fb880 KB |
2604 | if (!io_request->raid_bypass) { |
2605 | device_offline = true; | |
2606 | pqi_take_device_offline(scmd->device, "AIO"); | |
2607 | host_byte = DID_NO_CONNECT; | |
2608 | } | |
6c223761 KB |
2609 | scsi_status = SAM_STAT_CHECK_CONDITION; |
2610 | break; | |
2611 | case PQI_AIO_STATUS_IO_ERROR: | |
2612 | default: | |
2613 | scsi_status = SAM_STAT_CHECK_CONDITION; | |
2614 | break; | |
2615 | } | |
2616 | break; | |
2617 | case PQI_AIO_SERV_RESPONSE_TMF_COMPLETE: | |
2618 | case PQI_AIO_SERV_RESPONSE_TMF_SUCCEEDED: | |
2619 | scsi_status = SAM_STAT_GOOD; | |
2620 | break; | |
2621 | case PQI_AIO_SERV_RESPONSE_TMF_REJECTED: | |
2622 | case PQI_AIO_SERV_RESPONSE_TMF_INCORRECT_LUN: | |
2623 | default: | |
2624 | scsi_status = SAM_STAT_CHECK_CONDITION; | |
2625 | break; | |
2626 | } | |
2627 | ||
2628 | if (error_info->data_present) { | |
2629 | sense_data_length = | |
2630 | get_unaligned_le16(&error_info->data_length); | |
2631 | if (sense_data_length) { | |
2632 | if (sense_data_length > sizeof(error_info->data)) | |
2633 | sense_data_length = sizeof(error_info->data); | |
2634 | if (sense_data_length > SCSI_SENSE_BUFFERSIZE) | |
2635 | sense_data_length = SCSI_SENSE_BUFFERSIZE; | |
2636 | memcpy(scmd->sense_buffer, error_info->data, | |
2637 | sense_data_length); | |
2638 | } | |
2639 | } | |
2640 | ||
2641 | if (device_offline && sense_data_length == 0) | |
2642 | scsi_build_sense_buffer(0, scmd->sense_buffer, HARDWARE_ERROR, | |
2643 | 0x3e, 0x1); | |
2644 | ||
2645 | scmd->result = scsi_status; | |
2646 | set_host_byte(scmd, host_byte); | |
2647 | } | |
2648 | ||
2649 | static void pqi_process_io_error(unsigned int iu_type, | |
2650 | struct pqi_io_request *io_request) | |
2651 | { | |
2652 | switch (iu_type) { | |
2653 | case PQI_RESPONSE_IU_RAID_PATH_IO_ERROR: | |
2654 | pqi_process_raid_io_error(io_request); | |
2655 | break; | |
2656 | case PQI_RESPONSE_IU_AIO_PATH_IO_ERROR: | |
2657 | pqi_process_aio_io_error(io_request); | |
2658 | break; | |
2659 | } | |
2660 | } | |
2661 | ||
2662 | static int pqi_interpret_task_management_response( | |
2663 | struct pqi_task_management_response *response) | |
2664 | { | |
2665 | int rc; | |
2666 | ||
2667 | switch (response->response_code) { | |
b17f0486 KB |
2668 | case SOP_TMF_COMPLETE: |
2669 | case SOP_TMF_FUNCTION_SUCCEEDED: | |
6c223761 KB |
2670 | rc = 0; |
2671 | break; | |
2672 | default: | |
2673 | rc = -EIO; | |
2674 | break; | |
2675 | } | |
2676 | ||
2677 | return rc; | |
2678 | } | |
2679 | ||
2680 | static unsigned int pqi_process_io_intr(struct pqi_ctrl_info *ctrl_info, | |
2681 | struct pqi_queue_group *queue_group) | |
2682 | { | |
2683 | unsigned int num_responses; | |
2684 | pqi_index_t oq_pi; | |
2685 | pqi_index_t oq_ci; | |
2686 | struct pqi_io_request *io_request; | |
2687 | struct pqi_io_response *response; | |
2688 | u16 request_id; | |
2689 | ||
2690 | num_responses = 0; | |
2691 | oq_ci = queue_group->oq_ci_copy; | |
2692 | ||
2693 | while (1) { | |
2694 | oq_pi = *queue_group->oq_pi; | |
2695 | if (oq_pi == oq_ci) | |
2696 | break; | |
2697 | ||
2698 | num_responses++; | |
2699 | response = queue_group->oq_element_array + | |
2700 | (oq_ci * PQI_OPERATIONAL_OQ_ELEMENT_LENGTH); | |
2701 | ||
2702 | request_id = get_unaligned_le16(&response->request_id); | |
2703 | WARN_ON(request_id >= ctrl_info->max_io_slots); | |
2704 | ||
2705 | io_request = &ctrl_info->io_request_pool[request_id]; | |
2706 | WARN_ON(atomic_read(&io_request->refcount) == 0); | |
2707 | ||
2708 | switch (response->header.iu_type) { | |
2709 | case PQI_RESPONSE_IU_RAID_PATH_IO_SUCCESS: | |
2710 | case PQI_RESPONSE_IU_AIO_PATH_IO_SUCCESS: | |
2711 | case PQI_RESPONSE_IU_GENERAL_MANAGEMENT: | |
2712 | break; | |
2713 | case PQI_RESPONSE_IU_TASK_MANAGEMENT: | |
2714 | io_request->status = | |
2715 | pqi_interpret_task_management_response( | |
2716 | (void *)response); | |
2717 | break; | |
2718 | case PQI_RESPONSE_IU_AIO_PATH_DISABLED: | |
2719 | pqi_aio_path_disabled(io_request); | |
2720 | io_request->status = -EAGAIN; | |
2721 | break; | |
2722 | case PQI_RESPONSE_IU_RAID_PATH_IO_ERROR: | |
2723 | case PQI_RESPONSE_IU_AIO_PATH_IO_ERROR: | |
2724 | io_request->error_info = ctrl_info->error_buffer + | |
2725 | (get_unaligned_le16(&response->error_index) * | |
2726 | PQI_ERROR_BUFFER_ELEMENT_LENGTH); | |
2727 | pqi_process_io_error(response->header.iu_type, | |
2728 | io_request); | |
2729 | break; | |
2730 | default: | |
2731 | dev_err(&ctrl_info->pci_dev->dev, | |
2732 | "unexpected IU type: 0x%x\n", | |
2733 | response->header.iu_type); | |
6c223761 KB |
2734 | break; |
2735 | } | |
2736 | ||
2737 | io_request->io_complete_callback(io_request, | |
2738 | io_request->context); | |
2739 | ||
2740 | /* | |
2741 | * Note that the I/O request structure CANNOT BE TOUCHED after | |
2742 | * returning from the I/O completion callback! | |
2743 | */ | |
2744 | ||
2745 | oq_ci = (oq_ci + 1) % ctrl_info->num_elements_per_oq; | |
2746 | } | |
2747 | ||
2748 | if (num_responses) { | |
2749 | queue_group->oq_ci_copy = oq_ci; | |
2750 | writel(oq_ci, queue_group->oq_ci); | |
2751 | } | |
2752 | ||
2753 | return num_responses; | |
2754 | } | |
2755 | ||
2756 | static inline unsigned int pqi_num_elements_free(unsigned int pi, | |
df7a1fcf | 2757 | unsigned int ci, unsigned int elements_in_queue) |
6c223761 KB |
2758 | { |
2759 | unsigned int num_elements_used; | |
2760 | ||
2761 | if (pi >= ci) | |
2762 | num_elements_used = pi - ci; | |
2763 | else | |
2764 | num_elements_used = elements_in_queue - ci + pi; | |
2765 | ||
2766 | return elements_in_queue - num_elements_used - 1; | |
2767 | } | |
2768 | ||
98f87667 | 2769 | static void pqi_send_event_ack(struct pqi_ctrl_info *ctrl_info, |
6c223761 KB |
2770 | struct pqi_event_acknowledge_request *iu, size_t iu_length) |
2771 | { | |
2772 | pqi_index_t iq_pi; | |
2773 | pqi_index_t iq_ci; | |
2774 | unsigned long flags; | |
2775 | void *next_element; | |
6c223761 KB |
2776 | struct pqi_queue_group *queue_group; |
2777 | ||
2778 | queue_group = &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP]; | |
2779 | put_unaligned_le16(queue_group->oq_id, &iu->header.response_queue_id); | |
2780 | ||
6c223761 KB |
2781 | while (1) { |
2782 | spin_lock_irqsave(&queue_group->submit_lock[RAID_PATH], flags); | |
2783 | ||
2784 | iq_pi = queue_group->iq_pi_copy[RAID_PATH]; | |
2785 | iq_ci = *queue_group->iq_ci[RAID_PATH]; | |
2786 | ||
2787 | if (pqi_num_elements_free(iq_pi, iq_ci, | |
2788 | ctrl_info->num_elements_per_iq)) | |
2789 | break; | |
2790 | ||
2791 | spin_unlock_irqrestore( | |
2792 | &queue_group->submit_lock[RAID_PATH], flags); | |
2793 | ||
98f87667 | 2794 | if (pqi_ctrl_offline(ctrl_info)) |
6c223761 | 2795 | return; |
6c223761 KB |
2796 | } |
2797 | ||
2798 | next_element = queue_group->iq_element_array[RAID_PATH] + | |
2799 | (iq_pi * PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); | |
2800 | ||
2801 | memcpy(next_element, iu, iu_length); | |
2802 | ||
2803 | iq_pi = (iq_pi + 1) % ctrl_info->num_elements_per_iq; | |
6c223761 KB |
2804 | queue_group->iq_pi_copy[RAID_PATH] = iq_pi; |
2805 | ||
2806 | /* | |
2807 | * This write notifies the controller that an IU is available to be | |
2808 | * processed. | |
2809 | */ | |
2810 | writel(iq_pi, queue_group->iq_pi[RAID_PATH]); | |
2811 | ||
2812 | spin_unlock_irqrestore(&queue_group->submit_lock[RAID_PATH], flags); | |
6c223761 KB |
2813 | } |
2814 | ||
2815 | static void pqi_acknowledge_event(struct pqi_ctrl_info *ctrl_info, | |
2816 | struct pqi_event *event) | |
2817 | { | |
2818 | struct pqi_event_acknowledge_request request; | |
2819 | ||
2820 | memset(&request, 0, sizeof(request)); | |
2821 | ||
2822 | request.header.iu_type = PQI_REQUEST_IU_ACKNOWLEDGE_VENDOR_EVENT; | |
2823 | put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH, | |
2824 | &request.header.iu_length); | |
2825 | request.event_type = event->event_type; | |
2826 | request.event_id = event->event_id; | |
2827 | request.additional_event_id = event->additional_event_id; | |
2828 | ||
98f87667 | 2829 | pqi_send_event_ack(ctrl_info, &request, sizeof(request)); |
6c223761 KB |
2830 | } |
2831 | ||
2832 | static void pqi_event_worker(struct work_struct *work) | |
2833 | { | |
2834 | unsigned int i; | |
2835 | struct pqi_ctrl_info *ctrl_info; | |
6a50d6ad | 2836 | struct pqi_event *event; |
6c223761 KB |
2837 | |
2838 | ctrl_info = container_of(work, struct pqi_ctrl_info, event_work); | |
2839 | ||
7561a7e4 KB |
2840 | pqi_ctrl_busy(ctrl_info); |
2841 | pqi_wait_if_ctrl_blocked(ctrl_info, NO_TIMEOUT); | |
5f310425 KB |
2842 | if (pqi_ctrl_offline(ctrl_info)) |
2843 | goto out; | |
2844 | ||
2845 | pqi_schedule_rescan_worker_delayed(ctrl_info); | |
7561a7e4 | 2846 | |
6a50d6ad | 2847 | event = ctrl_info->events; |
6c223761 | 2848 | for (i = 0; i < PQI_NUM_SUPPORTED_EVENTS; i++) { |
6a50d6ad KB |
2849 | if (event->pending) { |
2850 | event->pending = false; | |
2851 | pqi_acknowledge_event(ctrl_info, event); | |
6c223761 | 2852 | } |
6a50d6ad | 2853 | event++; |
6c223761 KB |
2854 | } |
2855 | ||
5f310425 | 2856 | out: |
7561a7e4 | 2857 | pqi_ctrl_unbusy(ctrl_info); |
6c223761 KB |
2858 | } |
2859 | ||
98f87667 | 2860 | #define PQI_HEARTBEAT_TIMER_INTERVAL (10 * HZ) |
6c223761 KB |
2861 | |
2862 | static void pqi_heartbeat_timer_handler(unsigned long data) | |
2863 | { | |
2864 | int num_interrupts; | |
98f87667 | 2865 | u32 heartbeat_count; |
6c223761 KB |
2866 | struct pqi_ctrl_info *ctrl_info = (struct pqi_ctrl_info *)data; |
2867 | ||
98f87667 KB |
2868 | pqi_check_ctrl_health(ctrl_info); |
2869 | if (pqi_ctrl_offline(ctrl_info)) | |
061ef06a KB |
2870 | return; |
2871 | ||
6c223761 | 2872 | num_interrupts = atomic_read(&ctrl_info->num_interrupts); |
98f87667 | 2873 | heartbeat_count = pqi_read_heartbeat_counter(ctrl_info); |
6c223761 KB |
2874 | |
2875 | if (num_interrupts == ctrl_info->previous_num_interrupts) { | |
98f87667 KB |
2876 | if (heartbeat_count == ctrl_info->previous_heartbeat_count) { |
2877 | dev_err(&ctrl_info->pci_dev->dev, | |
2878 | "no heartbeat detected - last heartbeat count: %u\n", | |
2879 | heartbeat_count); | |
6c223761 KB |
2880 | pqi_take_ctrl_offline(ctrl_info); |
2881 | return; | |
2882 | } | |
6c223761 | 2883 | } else { |
98f87667 | 2884 | ctrl_info->previous_num_interrupts = num_interrupts; |
6c223761 KB |
2885 | } |
2886 | ||
98f87667 | 2887 | ctrl_info->previous_heartbeat_count = heartbeat_count; |
6c223761 KB |
2888 | mod_timer(&ctrl_info->heartbeat_timer, |
2889 | jiffies + PQI_HEARTBEAT_TIMER_INTERVAL); | |
2890 | } | |
2891 | ||
2892 | static void pqi_start_heartbeat_timer(struct pqi_ctrl_info *ctrl_info) | |
2893 | { | |
98f87667 KB |
2894 | if (!ctrl_info->heartbeat_counter) |
2895 | return; | |
2896 | ||
6c223761 KB |
2897 | ctrl_info->previous_num_interrupts = |
2898 | atomic_read(&ctrl_info->num_interrupts); | |
98f87667 KB |
2899 | ctrl_info->previous_heartbeat_count = |
2900 | pqi_read_heartbeat_counter(ctrl_info); | |
6c223761 | 2901 | |
6c223761 KB |
2902 | ctrl_info->heartbeat_timer.expires = |
2903 | jiffies + PQI_HEARTBEAT_TIMER_INTERVAL; | |
2904 | ctrl_info->heartbeat_timer.data = (unsigned long)ctrl_info; | |
2905 | ctrl_info->heartbeat_timer.function = pqi_heartbeat_timer_handler; | |
061ef06a | 2906 | add_timer(&ctrl_info->heartbeat_timer); |
6c223761 KB |
2907 | } |
2908 | ||
2909 | static inline void pqi_stop_heartbeat_timer(struct pqi_ctrl_info *ctrl_info) | |
2910 | { | |
98f87667 | 2911 | del_timer_sync(&ctrl_info->heartbeat_timer); |
6c223761 KB |
2912 | } |
2913 | ||
6a50d6ad | 2914 | static inline int pqi_event_type_to_event_index(unsigned int event_type) |
6c223761 KB |
2915 | { |
2916 | int index; | |
2917 | ||
6a50d6ad KB |
2918 | for (index = 0; index < ARRAY_SIZE(pqi_supported_event_types); index++) |
2919 | if (event_type == pqi_supported_event_types[index]) | |
2920 | return index; | |
6c223761 | 2921 | |
6a50d6ad KB |
2922 | return -1; |
2923 | } | |
2924 | ||
2925 | static inline bool pqi_is_supported_event(unsigned int event_type) | |
2926 | { | |
2927 | return pqi_event_type_to_event_index(event_type) != -1; | |
6c223761 KB |
2928 | } |
2929 | ||
2930 | static unsigned int pqi_process_event_intr(struct pqi_ctrl_info *ctrl_info) | |
2931 | { | |
2932 | unsigned int num_events; | |
2933 | pqi_index_t oq_pi; | |
2934 | pqi_index_t oq_ci; | |
2935 | struct pqi_event_queue *event_queue; | |
2936 | struct pqi_event_response *response; | |
6a50d6ad | 2937 | struct pqi_event *event; |
6c223761 KB |
2938 | int event_index; |
2939 | ||
2940 | event_queue = &ctrl_info->event_queue; | |
2941 | num_events = 0; | |
6c223761 KB |
2942 | oq_ci = event_queue->oq_ci_copy; |
2943 | ||
2944 | while (1) { | |
2945 | oq_pi = *event_queue->oq_pi; | |
2946 | if (oq_pi == oq_ci) | |
2947 | break; | |
2948 | ||
2949 | num_events++; | |
2950 | response = event_queue->oq_element_array + | |
2951 | (oq_ci * PQI_EVENT_OQ_ELEMENT_LENGTH); | |
2952 | ||
2953 | event_index = | |
2954 | pqi_event_type_to_event_index(response->event_type); | |
2955 | ||
2956 | if (event_index >= 0) { | |
2957 | if (response->request_acknowlege) { | |
6a50d6ad KB |
2958 | event = &ctrl_info->events[event_index]; |
2959 | event->pending = true; | |
2960 | event->event_type = response->event_type; | |
2961 | event->event_id = response->event_id; | |
2962 | event->additional_event_id = | |
6c223761 | 2963 | response->additional_event_id; |
6c223761 KB |
2964 | } |
2965 | } | |
2966 | ||
2967 | oq_ci = (oq_ci + 1) % PQI_NUM_EVENT_QUEUE_ELEMENTS; | |
2968 | } | |
2969 | ||
2970 | if (num_events) { | |
2971 | event_queue->oq_ci_copy = oq_ci; | |
2972 | writel(oq_ci, event_queue->oq_ci); | |
98f87667 | 2973 | schedule_work(&ctrl_info->event_work); |
6c223761 KB |
2974 | } |
2975 | ||
2976 | return num_events; | |
2977 | } | |
2978 | ||
061ef06a KB |
2979 | #define PQI_LEGACY_INTX_MASK 0x1 |
2980 | ||
2981 | static inline void pqi_configure_legacy_intx(struct pqi_ctrl_info *ctrl_info, | |
2982 | bool enable_intx) | |
2983 | { | |
2984 | u32 intx_mask; | |
2985 | struct pqi_device_registers __iomem *pqi_registers; | |
2986 | volatile void __iomem *register_addr; | |
2987 | ||
2988 | pqi_registers = ctrl_info->pqi_registers; | |
2989 | ||
2990 | if (enable_intx) | |
2991 | register_addr = &pqi_registers->legacy_intx_mask_clear; | |
2992 | else | |
2993 | register_addr = &pqi_registers->legacy_intx_mask_set; | |
2994 | ||
2995 | intx_mask = readl(register_addr); | |
2996 | intx_mask |= PQI_LEGACY_INTX_MASK; | |
2997 | writel(intx_mask, register_addr); | |
2998 | } | |
2999 | ||
3000 | static void pqi_change_irq_mode(struct pqi_ctrl_info *ctrl_info, | |
3001 | enum pqi_irq_mode new_mode) | |
3002 | { | |
3003 | switch (ctrl_info->irq_mode) { | |
3004 | case IRQ_MODE_MSIX: | |
3005 | switch (new_mode) { | |
3006 | case IRQ_MODE_MSIX: | |
3007 | break; | |
3008 | case IRQ_MODE_INTX: | |
3009 | pqi_configure_legacy_intx(ctrl_info, true); | |
3010 | sis_disable_msix(ctrl_info); | |
3011 | sis_enable_intx(ctrl_info); | |
3012 | break; | |
3013 | case IRQ_MODE_NONE: | |
3014 | sis_disable_msix(ctrl_info); | |
3015 | break; | |
3016 | } | |
3017 | break; | |
3018 | case IRQ_MODE_INTX: | |
3019 | switch (new_mode) { | |
3020 | case IRQ_MODE_MSIX: | |
3021 | pqi_configure_legacy_intx(ctrl_info, false); | |
3022 | sis_disable_intx(ctrl_info); | |
3023 | sis_enable_msix(ctrl_info); | |
3024 | break; | |
3025 | case IRQ_MODE_INTX: | |
3026 | break; | |
3027 | case IRQ_MODE_NONE: | |
3028 | pqi_configure_legacy_intx(ctrl_info, false); | |
3029 | sis_disable_intx(ctrl_info); | |
3030 | break; | |
3031 | } | |
3032 | break; | |
3033 | case IRQ_MODE_NONE: | |
3034 | switch (new_mode) { | |
3035 | case IRQ_MODE_MSIX: | |
3036 | sis_enable_msix(ctrl_info); | |
3037 | break; | |
3038 | case IRQ_MODE_INTX: | |
3039 | pqi_configure_legacy_intx(ctrl_info, true); | |
3040 | sis_enable_intx(ctrl_info); | |
3041 | break; | |
3042 | case IRQ_MODE_NONE: | |
3043 | break; | |
3044 | } | |
3045 | break; | |
3046 | } | |
3047 | ||
3048 | ctrl_info->irq_mode = new_mode; | |
3049 | } | |
3050 | ||
3051 | #define PQI_LEGACY_INTX_PENDING 0x1 | |
3052 | ||
3053 | static inline bool pqi_is_valid_irq(struct pqi_ctrl_info *ctrl_info) | |
3054 | { | |
3055 | bool valid_irq; | |
3056 | u32 intx_status; | |
3057 | ||
3058 | switch (ctrl_info->irq_mode) { | |
3059 | case IRQ_MODE_MSIX: | |
3060 | valid_irq = true; | |
3061 | break; | |
3062 | case IRQ_MODE_INTX: | |
3063 | intx_status = | |
3064 | readl(&ctrl_info->pqi_registers->legacy_intx_status); | |
3065 | if (intx_status & PQI_LEGACY_INTX_PENDING) | |
3066 | valid_irq = true; | |
3067 | else | |
3068 | valid_irq = false; | |
3069 | break; | |
3070 | case IRQ_MODE_NONE: | |
3071 | default: | |
3072 | valid_irq = false; | |
3073 | break; | |
3074 | } | |
3075 | ||
3076 | return valid_irq; | |
3077 | } | |
3078 | ||
6c223761 KB |
3079 | static irqreturn_t pqi_irq_handler(int irq, void *data) |
3080 | { | |
3081 | struct pqi_ctrl_info *ctrl_info; | |
3082 | struct pqi_queue_group *queue_group; | |
3083 | unsigned int num_responses_handled; | |
3084 | ||
3085 | queue_group = data; | |
3086 | ctrl_info = queue_group->ctrl_info; | |
3087 | ||
061ef06a | 3088 | if (!pqi_is_valid_irq(ctrl_info)) |
6c223761 KB |
3089 | return IRQ_NONE; |
3090 | ||
3091 | num_responses_handled = pqi_process_io_intr(ctrl_info, queue_group); | |
3092 | ||
3093 | if (irq == ctrl_info->event_irq) | |
3094 | num_responses_handled += pqi_process_event_intr(ctrl_info); | |
3095 | ||
3096 | if (num_responses_handled) | |
3097 | atomic_inc(&ctrl_info->num_interrupts); | |
3098 | ||
3099 | pqi_start_io(ctrl_info, queue_group, RAID_PATH, NULL); | |
3100 | pqi_start_io(ctrl_info, queue_group, AIO_PATH, NULL); | |
3101 | ||
3102 | return IRQ_HANDLED; | |
3103 | } | |
3104 | ||
3105 | static int pqi_request_irqs(struct pqi_ctrl_info *ctrl_info) | |
3106 | { | |
d91d7820 | 3107 | struct pci_dev *pci_dev = ctrl_info->pci_dev; |
6c223761 KB |
3108 | int i; |
3109 | int rc; | |
3110 | ||
d91d7820 | 3111 | ctrl_info->event_irq = pci_irq_vector(pci_dev, 0); |
6c223761 KB |
3112 | |
3113 | for (i = 0; i < ctrl_info->num_msix_vectors_enabled; i++) { | |
d91d7820 | 3114 | rc = request_irq(pci_irq_vector(pci_dev, i), pqi_irq_handler, 0, |
52198226 | 3115 | DRIVER_NAME_SHORT, &ctrl_info->queue_groups[i]); |
6c223761 | 3116 | if (rc) { |
d91d7820 | 3117 | dev_err(&pci_dev->dev, |
6c223761 | 3118 | "irq %u init failed with error %d\n", |
d91d7820 | 3119 | pci_irq_vector(pci_dev, i), rc); |
6c223761 KB |
3120 | return rc; |
3121 | } | |
3122 | ctrl_info->num_msix_vectors_initialized++; | |
3123 | } | |
3124 | ||
3125 | return 0; | |
3126 | } | |
3127 | ||
98bf061b KB |
3128 | static void pqi_free_irqs(struct pqi_ctrl_info *ctrl_info) |
3129 | { | |
3130 | int i; | |
3131 | ||
3132 | for (i = 0; i < ctrl_info->num_msix_vectors_initialized; i++) | |
3133 | free_irq(pci_irq_vector(ctrl_info->pci_dev, i), | |
3134 | &ctrl_info->queue_groups[i]); | |
3135 | ||
3136 | ctrl_info->num_msix_vectors_initialized = 0; | |
3137 | } | |
3138 | ||
6c223761 KB |
3139 | static int pqi_enable_msix_interrupts(struct pqi_ctrl_info *ctrl_info) |
3140 | { | |
98bf061b | 3141 | int num_vectors_enabled; |
6c223761 | 3142 | |
98bf061b | 3143 | num_vectors_enabled = pci_alloc_irq_vectors(ctrl_info->pci_dev, |
52198226 CH |
3144 | PQI_MIN_MSIX_VECTORS, ctrl_info->num_queue_groups, |
3145 | PCI_IRQ_MSIX | PCI_IRQ_AFFINITY); | |
98bf061b | 3146 | if (num_vectors_enabled < 0) { |
6c223761 | 3147 | dev_err(&ctrl_info->pci_dev->dev, |
98bf061b KB |
3148 | "MSI-X init failed with error %d\n", |
3149 | num_vectors_enabled); | |
3150 | return num_vectors_enabled; | |
6c223761 KB |
3151 | } |
3152 | ||
98bf061b | 3153 | ctrl_info->num_msix_vectors_enabled = num_vectors_enabled; |
061ef06a | 3154 | ctrl_info->irq_mode = IRQ_MODE_MSIX; |
6c223761 KB |
3155 | return 0; |
3156 | } | |
3157 | ||
98bf061b KB |
3158 | static void pqi_disable_msix_interrupts(struct pqi_ctrl_info *ctrl_info) |
3159 | { | |
3160 | if (ctrl_info->num_msix_vectors_enabled) { | |
3161 | pci_free_irq_vectors(ctrl_info->pci_dev); | |
3162 | ctrl_info->num_msix_vectors_enabled = 0; | |
3163 | } | |
3164 | } | |
3165 | ||
6c223761 KB |
3166 | static int pqi_alloc_operational_queues(struct pqi_ctrl_info *ctrl_info) |
3167 | { | |
3168 | unsigned int i; | |
3169 | size_t alloc_length; | |
3170 | size_t element_array_length_per_iq; | |
3171 | size_t element_array_length_per_oq; | |
3172 | void *element_array; | |
3173 | void *next_queue_index; | |
3174 | void *aligned_pointer; | |
3175 | unsigned int num_inbound_queues; | |
3176 | unsigned int num_outbound_queues; | |
3177 | unsigned int num_queue_indexes; | |
3178 | struct pqi_queue_group *queue_group; | |
3179 | ||
3180 | element_array_length_per_iq = | |
3181 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH * | |
3182 | ctrl_info->num_elements_per_iq; | |
3183 | element_array_length_per_oq = | |
3184 | PQI_OPERATIONAL_OQ_ELEMENT_LENGTH * | |
3185 | ctrl_info->num_elements_per_oq; | |
3186 | num_inbound_queues = ctrl_info->num_queue_groups * 2; | |
3187 | num_outbound_queues = ctrl_info->num_queue_groups; | |
3188 | num_queue_indexes = (ctrl_info->num_queue_groups * 3) + 1; | |
3189 | ||
3190 | aligned_pointer = NULL; | |
3191 | ||
3192 | for (i = 0; i < num_inbound_queues; i++) { | |
3193 | aligned_pointer = PTR_ALIGN(aligned_pointer, | |
3194 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); | |
3195 | aligned_pointer += element_array_length_per_iq; | |
3196 | } | |
3197 | ||
3198 | for (i = 0; i < num_outbound_queues; i++) { | |
3199 | aligned_pointer = PTR_ALIGN(aligned_pointer, | |
3200 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); | |
3201 | aligned_pointer += element_array_length_per_oq; | |
3202 | } | |
3203 | ||
3204 | aligned_pointer = PTR_ALIGN(aligned_pointer, | |
3205 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); | |
3206 | aligned_pointer += PQI_NUM_EVENT_QUEUE_ELEMENTS * | |
3207 | PQI_EVENT_OQ_ELEMENT_LENGTH; | |
3208 | ||
3209 | for (i = 0; i < num_queue_indexes; i++) { | |
3210 | aligned_pointer = PTR_ALIGN(aligned_pointer, | |
3211 | PQI_OPERATIONAL_INDEX_ALIGNMENT); | |
3212 | aligned_pointer += sizeof(pqi_index_t); | |
3213 | } | |
3214 | ||
3215 | alloc_length = (size_t)aligned_pointer + | |
3216 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT; | |
3217 | ||
e1d213bd KB |
3218 | alloc_length += PQI_EXTRA_SGL_MEMORY; |
3219 | ||
6c223761 KB |
3220 | ctrl_info->queue_memory_base = |
3221 | dma_zalloc_coherent(&ctrl_info->pci_dev->dev, | |
3222 | alloc_length, | |
3223 | &ctrl_info->queue_memory_base_dma_handle, GFP_KERNEL); | |
3224 | ||
d87d5474 | 3225 | if (!ctrl_info->queue_memory_base) |
6c223761 | 3226 | return -ENOMEM; |
6c223761 KB |
3227 | |
3228 | ctrl_info->queue_memory_length = alloc_length; | |
3229 | ||
3230 | element_array = PTR_ALIGN(ctrl_info->queue_memory_base, | |
3231 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); | |
3232 | ||
3233 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
3234 | queue_group = &ctrl_info->queue_groups[i]; | |
3235 | queue_group->iq_element_array[RAID_PATH] = element_array; | |
3236 | queue_group->iq_element_array_bus_addr[RAID_PATH] = | |
3237 | ctrl_info->queue_memory_base_dma_handle + | |
3238 | (element_array - ctrl_info->queue_memory_base); | |
3239 | element_array += element_array_length_per_iq; | |
3240 | element_array = PTR_ALIGN(element_array, | |
3241 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); | |
3242 | queue_group->iq_element_array[AIO_PATH] = element_array; | |
3243 | queue_group->iq_element_array_bus_addr[AIO_PATH] = | |
3244 | ctrl_info->queue_memory_base_dma_handle + | |
3245 | (element_array - ctrl_info->queue_memory_base); | |
3246 | element_array += element_array_length_per_iq; | |
3247 | element_array = PTR_ALIGN(element_array, | |
3248 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); | |
3249 | } | |
3250 | ||
3251 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
3252 | queue_group = &ctrl_info->queue_groups[i]; | |
3253 | queue_group->oq_element_array = element_array; | |
3254 | queue_group->oq_element_array_bus_addr = | |
3255 | ctrl_info->queue_memory_base_dma_handle + | |
3256 | (element_array - ctrl_info->queue_memory_base); | |
3257 | element_array += element_array_length_per_oq; | |
3258 | element_array = PTR_ALIGN(element_array, | |
3259 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); | |
3260 | } | |
3261 | ||
3262 | ctrl_info->event_queue.oq_element_array = element_array; | |
3263 | ctrl_info->event_queue.oq_element_array_bus_addr = | |
3264 | ctrl_info->queue_memory_base_dma_handle + | |
3265 | (element_array - ctrl_info->queue_memory_base); | |
3266 | element_array += PQI_NUM_EVENT_QUEUE_ELEMENTS * | |
3267 | PQI_EVENT_OQ_ELEMENT_LENGTH; | |
3268 | ||
3269 | next_queue_index = PTR_ALIGN(element_array, | |
3270 | PQI_OPERATIONAL_INDEX_ALIGNMENT); | |
3271 | ||
3272 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
3273 | queue_group = &ctrl_info->queue_groups[i]; | |
3274 | queue_group->iq_ci[RAID_PATH] = next_queue_index; | |
3275 | queue_group->iq_ci_bus_addr[RAID_PATH] = | |
3276 | ctrl_info->queue_memory_base_dma_handle + | |
3277 | (next_queue_index - ctrl_info->queue_memory_base); | |
3278 | next_queue_index += sizeof(pqi_index_t); | |
3279 | next_queue_index = PTR_ALIGN(next_queue_index, | |
3280 | PQI_OPERATIONAL_INDEX_ALIGNMENT); | |
3281 | queue_group->iq_ci[AIO_PATH] = next_queue_index; | |
3282 | queue_group->iq_ci_bus_addr[AIO_PATH] = | |
3283 | ctrl_info->queue_memory_base_dma_handle + | |
3284 | (next_queue_index - ctrl_info->queue_memory_base); | |
3285 | next_queue_index += sizeof(pqi_index_t); | |
3286 | next_queue_index = PTR_ALIGN(next_queue_index, | |
3287 | PQI_OPERATIONAL_INDEX_ALIGNMENT); | |
3288 | queue_group->oq_pi = next_queue_index; | |
3289 | queue_group->oq_pi_bus_addr = | |
3290 | ctrl_info->queue_memory_base_dma_handle + | |
3291 | (next_queue_index - ctrl_info->queue_memory_base); | |
3292 | next_queue_index += sizeof(pqi_index_t); | |
3293 | next_queue_index = PTR_ALIGN(next_queue_index, | |
3294 | PQI_OPERATIONAL_INDEX_ALIGNMENT); | |
3295 | } | |
3296 | ||
3297 | ctrl_info->event_queue.oq_pi = next_queue_index; | |
3298 | ctrl_info->event_queue.oq_pi_bus_addr = | |
3299 | ctrl_info->queue_memory_base_dma_handle + | |
3300 | (next_queue_index - ctrl_info->queue_memory_base); | |
3301 | ||
3302 | return 0; | |
3303 | } | |
3304 | ||
3305 | static void pqi_init_operational_queues(struct pqi_ctrl_info *ctrl_info) | |
3306 | { | |
3307 | unsigned int i; | |
3308 | u16 next_iq_id = PQI_MIN_OPERATIONAL_QUEUE_ID; | |
3309 | u16 next_oq_id = PQI_MIN_OPERATIONAL_QUEUE_ID; | |
3310 | ||
3311 | /* | |
3312 | * Initialize the backpointers to the controller structure in | |
3313 | * each operational queue group structure. | |
3314 | */ | |
3315 | for (i = 0; i < ctrl_info->num_queue_groups; i++) | |
3316 | ctrl_info->queue_groups[i].ctrl_info = ctrl_info; | |
3317 | ||
3318 | /* | |
3319 | * Assign IDs to all operational queues. Note that the IDs | |
3320 | * assigned to operational IQs are independent of the IDs | |
3321 | * assigned to operational OQs. | |
3322 | */ | |
3323 | ctrl_info->event_queue.oq_id = next_oq_id++; | |
3324 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
3325 | ctrl_info->queue_groups[i].iq_id[RAID_PATH] = next_iq_id++; | |
3326 | ctrl_info->queue_groups[i].iq_id[AIO_PATH] = next_iq_id++; | |
3327 | ctrl_info->queue_groups[i].oq_id = next_oq_id++; | |
3328 | } | |
3329 | ||
3330 | /* | |
3331 | * Assign MSI-X table entry indexes to all queues. Note that the | |
3332 | * interrupt for the event queue is shared with the first queue group. | |
3333 | */ | |
3334 | ctrl_info->event_queue.int_msg_num = 0; | |
3335 | for (i = 0; i < ctrl_info->num_queue_groups; i++) | |
3336 | ctrl_info->queue_groups[i].int_msg_num = i; | |
3337 | ||
3338 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
3339 | spin_lock_init(&ctrl_info->queue_groups[i].submit_lock[0]); | |
3340 | spin_lock_init(&ctrl_info->queue_groups[i].submit_lock[1]); | |
3341 | INIT_LIST_HEAD(&ctrl_info->queue_groups[i].request_list[0]); | |
3342 | INIT_LIST_HEAD(&ctrl_info->queue_groups[i].request_list[1]); | |
3343 | } | |
3344 | } | |
3345 | ||
3346 | static int pqi_alloc_admin_queues(struct pqi_ctrl_info *ctrl_info) | |
3347 | { | |
3348 | size_t alloc_length; | |
3349 | struct pqi_admin_queues_aligned *admin_queues_aligned; | |
3350 | struct pqi_admin_queues *admin_queues; | |
3351 | ||
3352 | alloc_length = sizeof(struct pqi_admin_queues_aligned) + | |
3353 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT; | |
3354 | ||
3355 | ctrl_info->admin_queue_memory_base = | |
3356 | dma_zalloc_coherent(&ctrl_info->pci_dev->dev, | |
3357 | alloc_length, | |
3358 | &ctrl_info->admin_queue_memory_base_dma_handle, | |
3359 | GFP_KERNEL); | |
3360 | ||
3361 | if (!ctrl_info->admin_queue_memory_base) | |
3362 | return -ENOMEM; | |
3363 | ||
3364 | ctrl_info->admin_queue_memory_length = alloc_length; | |
3365 | ||
3366 | admin_queues = &ctrl_info->admin_queues; | |
3367 | admin_queues_aligned = PTR_ALIGN(ctrl_info->admin_queue_memory_base, | |
3368 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); | |
3369 | admin_queues->iq_element_array = | |
3370 | &admin_queues_aligned->iq_element_array; | |
3371 | admin_queues->oq_element_array = | |
3372 | &admin_queues_aligned->oq_element_array; | |
3373 | admin_queues->iq_ci = &admin_queues_aligned->iq_ci; | |
3374 | admin_queues->oq_pi = &admin_queues_aligned->oq_pi; | |
3375 | ||
3376 | admin_queues->iq_element_array_bus_addr = | |
3377 | ctrl_info->admin_queue_memory_base_dma_handle + | |
3378 | (admin_queues->iq_element_array - | |
3379 | ctrl_info->admin_queue_memory_base); | |
3380 | admin_queues->oq_element_array_bus_addr = | |
3381 | ctrl_info->admin_queue_memory_base_dma_handle + | |
3382 | (admin_queues->oq_element_array - | |
3383 | ctrl_info->admin_queue_memory_base); | |
3384 | admin_queues->iq_ci_bus_addr = | |
3385 | ctrl_info->admin_queue_memory_base_dma_handle + | |
3386 | ((void *)admin_queues->iq_ci - | |
3387 | ctrl_info->admin_queue_memory_base); | |
3388 | admin_queues->oq_pi_bus_addr = | |
3389 | ctrl_info->admin_queue_memory_base_dma_handle + | |
3390 | ((void *)admin_queues->oq_pi - | |
3391 | ctrl_info->admin_queue_memory_base); | |
3392 | ||
3393 | return 0; | |
3394 | } | |
3395 | ||
3396 | #define PQI_ADMIN_QUEUE_CREATE_TIMEOUT_JIFFIES HZ | |
3397 | #define PQI_ADMIN_QUEUE_CREATE_POLL_INTERVAL_MSECS 1 | |
3398 | ||
3399 | static int pqi_create_admin_queues(struct pqi_ctrl_info *ctrl_info) | |
3400 | { | |
3401 | struct pqi_device_registers __iomem *pqi_registers; | |
3402 | struct pqi_admin_queues *admin_queues; | |
3403 | unsigned long timeout; | |
3404 | u8 status; | |
3405 | u32 reg; | |
3406 | ||
3407 | pqi_registers = ctrl_info->pqi_registers; | |
3408 | admin_queues = &ctrl_info->admin_queues; | |
3409 | ||
3410 | writeq((u64)admin_queues->iq_element_array_bus_addr, | |
3411 | &pqi_registers->admin_iq_element_array_addr); | |
3412 | writeq((u64)admin_queues->oq_element_array_bus_addr, | |
3413 | &pqi_registers->admin_oq_element_array_addr); | |
3414 | writeq((u64)admin_queues->iq_ci_bus_addr, | |
3415 | &pqi_registers->admin_iq_ci_addr); | |
3416 | writeq((u64)admin_queues->oq_pi_bus_addr, | |
3417 | &pqi_registers->admin_oq_pi_addr); | |
3418 | ||
3419 | reg = PQI_ADMIN_IQ_NUM_ELEMENTS | | |
3420 | (PQI_ADMIN_OQ_NUM_ELEMENTS) << 8 | | |
3421 | (admin_queues->int_msg_num << 16); | |
3422 | writel(reg, &pqi_registers->admin_iq_num_elements); | |
3423 | writel(PQI_CREATE_ADMIN_QUEUE_PAIR, | |
3424 | &pqi_registers->function_and_status_code); | |
3425 | ||
3426 | timeout = PQI_ADMIN_QUEUE_CREATE_TIMEOUT_JIFFIES + jiffies; | |
3427 | while (1) { | |
3428 | status = readb(&pqi_registers->function_and_status_code); | |
3429 | if (status == PQI_STATUS_IDLE) | |
3430 | break; | |
3431 | if (time_after(jiffies, timeout)) | |
3432 | return -ETIMEDOUT; | |
3433 | msleep(PQI_ADMIN_QUEUE_CREATE_POLL_INTERVAL_MSECS); | |
3434 | } | |
3435 | ||
3436 | /* | |
3437 | * The offset registers are not initialized to the correct | |
3438 | * offsets until *after* the create admin queue pair command | |
3439 | * completes successfully. | |
3440 | */ | |
3441 | admin_queues->iq_pi = ctrl_info->iomem_base + | |
3442 | PQI_DEVICE_REGISTERS_OFFSET + | |
3443 | readq(&pqi_registers->admin_iq_pi_offset); | |
3444 | admin_queues->oq_ci = ctrl_info->iomem_base + | |
3445 | PQI_DEVICE_REGISTERS_OFFSET + | |
3446 | readq(&pqi_registers->admin_oq_ci_offset); | |
3447 | ||
3448 | return 0; | |
3449 | } | |
3450 | ||
3451 | static void pqi_submit_admin_request(struct pqi_ctrl_info *ctrl_info, | |
3452 | struct pqi_general_admin_request *request) | |
3453 | { | |
3454 | struct pqi_admin_queues *admin_queues; | |
3455 | void *next_element; | |
3456 | pqi_index_t iq_pi; | |
3457 | ||
3458 | admin_queues = &ctrl_info->admin_queues; | |
3459 | iq_pi = admin_queues->iq_pi_copy; | |
3460 | ||
3461 | next_element = admin_queues->iq_element_array + | |
3462 | (iq_pi * PQI_ADMIN_IQ_ELEMENT_LENGTH); | |
3463 | ||
3464 | memcpy(next_element, request, sizeof(*request)); | |
3465 | ||
3466 | iq_pi = (iq_pi + 1) % PQI_ADMIN_IQ_NUM_ELEMENTS; | |
3467 | admin_queues->iq_pi_copy = iq_pi; | |
3468 | ||
3469 | /* | |
3470 | * This write notifies the controller that an IU is available to be | |
3471 | * processed. | |
3472 | */ | |
3473 | writel(iq_pi, admin_queues->iq_pi); | |
3474 | } | |
3475 | ||
13bede67 KB |
3476 | #define PQI_ADMIN_REQUEST_TIMEOUT_SECS 60 |
3477 | ||
6c223761 KB |
3478 | static int pqi_poll_for_admin_response(struct pqi_ctrl_info *ctrl_info, |
3479 | struct pqi_general_admin_response *response) | |
3480 | { | |
3481 | struct pqi_admin_queues *admin_queues; | |
3482 | pqi_index_t oq_pi; | |
3483 | pqi_index_t oq_ci; | |
3484 | unsigned long timeout; | |
3485 | ||
3486 | admin_queues = &ctrl_info->admin_queues; | |
3487 | oq_ci = admin_queues->oq_ci_copy; | |
3488 | ||
13bede67 | 3489 | timeout = (PQI_ADMIN_REQUEST_TIMEOUT_SECS * HZ) + jiffies; |
6c223761 KB |
3490 | |
3491 | while (1) { | |
3492 | oq_pi = *admin_queues->oq_pi; | |
3493 | if (oq_pi != oq_ci) | |
3494 | break; | |
3495 | if (time_after(jiffies, timeout)) { | |
3496 | dev_err(&ctrl_info->pci_dev->dev, | |
3497 | "timed out waiting for admin response\n"); | |
3498 | return -ETIMEDOUT; | |
3499 | } | |
13bede67 KB |
3500 | if (!sis_is_firmware_running(ctrl_info)) |
3501 | return -ENXIO; | |
6c223761 KB |
3502 | usleep_range(1000, 2000); |
3503 | } | |
3504 | ||
3505 | memcpy(response, admin_queues->oq_element_array + | |
3506 | (oq_ci * PQI_ADMIN_OQ_ELEMENT_LENGTH), sizeof(*response)); | |
3507 | ||
3508 | oq_ci = (oq_ci + 1) % PQI_ADMIN_OQ_NUM_ELEMENTS; | |
3509 | admin_queues->oq_ci_copy = oq_ci; | |
3510 | writel(oq_ci, admin_queues->oq_ci); | |
3511 | ||
3512 | return 0; | |
3513 | } | |
3514 | ||
3515 | static void pqi_start_io(struct pqi_ctrl_info *ctrl_info, | |
3516 | struct pqi_queue_group *queue_group, enum pqi_io_path path, | |
3517 | struct pqi_io_request *io_request) | |
3518 | { | |
3519 | struct pqi_io_request *next; | |
3520 | void *next_element; | |
3521 | pqi_index_t iq_pi; | |
3522 | pqi_index_t iq_ci; | |
3523 | size_t iu_length; | |
3524 | unsigned long flags; | |
3525 | unsigned int num_elements_needed; | |
3526 | unsigned int num_elements_to_end_of_queue; | |
3527 | size_t copy_count; | |
3528 | struct pqi_iu_header *request; | |
3529 | ||
3530 | spin_lock_irqsave(&queue_group->submit_lock[path], flags); | |
3531 | ||
376fb880 KB |
3532 | if (io_request) { |
3533 | io_request->queue_group = queue_group; | |
6c223761 KB |
3534 | list_add_tail(&io_request->request_list_entry, |
3535 | &queue_group->request_list[path]); | |
376fb880 | 3536 | } |
6c223761 KB |
3537 | |
3538 | iq_pi = queue_group->iq_pi_copy[path]; | |
3539 | ||
3540 | list_for_each_entry_safe(io_request, next, | |
3541 | &queue_group->request_list[path], request_list_entry) { | |
3542 | ||
3543 | request = io_request->iu; | |
3544 | ||
3545 | iu_length = get_unaligned_le16(&request->iu_length) + | |
3546 | PQI_REQUEST_HEADER_LENGTH; | |
3547 | num_elements_needed = | |
3548 | DIV_ROUND_UP(iu_length, | |
3549 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); | |
3550 | ||
3551 | iq_ci = *queue_group->iq_ci[path]; | |
3552 | ||
3553 | if (num_elements_needed > pqi_num_elements_free(iq_pi, iq_ci, | |
3554 | ctrl_info->num_elements_per_iq)) | |
3555 | break; | |
3556 | ||
3557 | put_unaligned_le16(queue_group->oq_id, | |
3558 | &request->response_queue_id); | |
3559 | ||
3560 | next_element = queue_group->iq_element_array[path] + | |
3561 | (iq_pi * PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); | |
3562 | ||
3563 | num_elements_to_end_of_queue = | |
3564 | ctrl_info->num_elements_per_iq - iq_pi; | |
3565 | ||
3566 | if (num_elements_needed <= num_elements_to_end_of_queue) { | |
3567 | memcpy(next_element, request, iu_length); | |
3568 | } else { | |
3569 | copy_count = num_elements_to_end_of_queue * | |
3570 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH; | |
3571 | memcpy(next_element, request, copy_count); | |
3572 | memcpy(queue_group->iq_element_array[path], | |
3573 | (u8 *)request + copy_count, | |
3574 | iu_length - copy_count); | |
3575 | } | |
3576 | ||
3577 | iq_pi = (iq_pi + num_elements_needed) % | |
3578 | ctrl_info->num_elements_per_iq; | |
3579 | ||
3580 | list_del(&io_request->request_list_entry); | |
3581 | } | |
3582 | ||
3583 | if (iq_pi != queue_group->iq_pi_copy[path]) { | |
3584 | queue_group->iq_pi_copy[path] = iq_pi; | |
3585 | /* | |
3586 | * This write notifies the controller that one or more IUs are | |
3587 | * available to be processed. | |
3588 | */ | |
3589 | writel(iq_pi, queue_group->iq_pi[path]); | |
3590 | } | |
3591 | ||
3592 | spin_unlock_irqrestore(&queue_group->submit_lock[path], flags); | |
3593 | } | |
3594 | ||
1f37e992 KB |
3595 | #define PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS 10 |
3596 | ||
3597 | static int pqi_wait_for_completion_io(struct pqi_ctrl_info *ctrl_info, | |
3598 | struct completion *wait) | |
3599 | { | |
3600 | int rc; | |
1f37e992 KB |
3601 | |
3602 | while (1) { | |
3603 | if (wait_for_completion_io_timeout(wait, | |
3604 | PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS * HZ)) { | |
3605 | rc = 0; | |
3606 | break; | |
3607 | } | |
3608 | ||
3609 | pqi_check_ctrl_health(ctrl_info); | |
3610 | if (pqi_ctrl_offline(ctrl_info)) { | |
3611 | rc = -ENXIO; | |
3612 | break; | |
3613 | } | |
1f37e992 KB |
3614 | } |
3615 | ||
3616 | return rc; | |
3617 | } | |
3618 | ||
6c223761 KB |
3619 | static void pqi_raid_synchronous_complete(struct pqi_io_request *io_request, |
3620 | void *context) | |
3621 | { | |
3622 | struct completion *waiting = context; | |
3623 | ||
3624 | complete(waiting); | |
3625 | } | |
3626 | ||
3627 | static int pqi_submit_raid_request_synchronous_with_io_request( | |
3628 | struct pqi_ctrl_info *ctrl_info, struct pqi_io_request *io_request, | |
3629 | unsigned long timeout_msecs) | |
3630 | { | |
3631 | int rc = 0; | |
3632 | DECLARE_COMPLETION_ONSTACK(wait); | |
3633 | ||
3634 | io_request->io_complete_callback = pqi_raid_synchronous_complete; | |
3635 | io_request->context = &wait; | |
3636 | ||
3637 | pqi_start_io(ctrl_info, | |
3638 | &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH, | |
3639 | io_request); | |
3640 | ||
3641 | if (timeout_msecs == NO_TIMEOUT) { | |
1f37e992 | 3642 | pqi_wait_for_completion_io(ctrl_info, &wait); |
6c223761 KB |
3643 | } else { |
3644 | if (!wait_for_completion_io_timeout(&wait, | |
3645 | msecs_to_jiffies(timeout_msecs))) { | |
3646 | dev_warn(&ctrl_info->pci_dev->dev, | |
3647 | "command timed out\n"); | |
3648 | rc = -ETIMEDOUT; | |
3649 | } | |
3650 | } | |
3651 | ||
3652 | return rc; | |
3653 | } | |
3654 | ||
3655 | static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info, | |
3656 | struct pqi_iu_header *request, unsigned int flags, | |
3657 | struct pqi_raid_error_info *error_info, unsigned long timeout_msecs) | |
3658 | { | |
3659 | int rc; | |
3660 | struct pqi_io_request *io_request; | |
3661 | unsigned long start_jiffies; | |
3662 | unsigned long msecs_blocked; | |
3663 | size_t iu_length; | |
3664 | ||
3665 | /* | |
3666 | * Note that specifying PQI_SYNC_FLAGS_INTERRUPTABLE and a timeout value | |
3667 | * are mutually exclusive. | |
3668 | */ | |
3669 | ||
3670 | if (flags & PQI_SYNC_FLAGS_INTERRUPTABLE) { | |
3671 | if (down_interruptible(&ctrl_info->sync_request_sem)) | |
3672 | return -ERESTARTSYS; | |
3673 | } else { | |
3674 | if (timeout_msecs == NO_TIMEOUT) { | |
3675 | down(&ctrl_info->sync_request_sem); | |
3676 | } else { | |
3677 | start_jiffies = jiffies; | |
3678 | if (down_timeout(&ctrl_info->sync_request_sem, | |
3679 | msecs_to_jiffies(timeout_msecs))) | |
3680 | return -ETIMEDOUT; | |
3681 | msecs_blocked = | |
3682 | jiffies_to_msecs(jiffies - start_jiffies); | |
3683 | if (msecs_blocked >= timeout_msecs) | |
3684 | return -ETIMEDOUT; | |
3685 | timeout_msecs -= msecs_blocked; | |
3686 | } | |
3687 | } | |
3688 | ||
7561a7e4 KB |
3689 | pqi_ctrl_busy(ctrl_info); |
3690 | timeout_msecs = pqi_wait_if_ctrl_blocked(ctrl_info, timeout_msecs); | |
3691 | if (timeout_msecs == 0) { | |
3692 | rc = -ETIMEDOUT; | |
3693 | goto out; | |
3694 | } | |
3695 | ||
376fb880 KB |
3696 | if (pqi_ctrl_offline(ctrl_info)) { |
3697 | rc = -ENXIO; | |
3698 | goto out; | |
3699 | } | |
3700 | ||
6c223761 KB |
3701 | io_request = pqi_alloc_io_request(ctrl_info); |
3702 | ||
3703 | put_unaligned_le16(io_request->index, | |
3704 | &(((struct pqi_raid_path_request *)request)->request_id)); | |
3705 | ||
3706 | if (request->iu_type == PQI_REQUEST_IU_RAID_PATH_IO) | |
3707 | ((struct pqi_raid_path_request *)request)->error_index = | |
3708 | ((struct pqi_raid_path_request *)request)->request_id; | |
3709 | ||
3710 | iu_length = get_unaligned_le16(&request->iu_length) + | |
3711 | PQI_REQUEST_HEADER_LENGTH; | |
3712 | memcpy(io_request->iu, request, iu_length); | |
3713 | ||
3714 | rc = pqi_submit_raid_request_synchronous_with_io_request(ctrl_info, | |
3715 | io_request, timeout_msecs); | |
3716 | ||
3717 | if (error_info) { | |
3718 | if (io_request->error_info) | |
3719 | memcpy(error_info, io_request->error_info, | |
3720 | sizeof(*error_info)); | |
3721 | else | |
3722 | memset(error_info, 0, sizeof(*error_info)); | |
3723 | } else if (rc == 0 && io_request->error_info) { | |
3724 | u8 scsi_status; | |
3725 | struct pqi_raid_error_info *raid_error_info; | |
3726 | ||
3727 | raid_error_info = io_request->error_info; | |
3728 | scsi_status = raid_error_info->status; | |
3729 | ||
3730 | if (scsi_status == SAM_STAT_CHECK_CONDITION && | |
3731 | raid_error_info->data_out_result == | |
3732 | PQI_DATA_IN_OUT_UNDERFLOW) | |
3733 | scsi_status = SAM_STAT_GOOD; | |
3734 | ||
3735 | if (scsi_status != SAM_STAT_GOOD) | |
3736 | rc = -EIO; | |
3737 | } | |
3738 | ||
3739 | pqi_free_io_request(io_request); | |
3740 | ||
7561a7e4 KB |
3741 | out: |
3742 | pqi_ctrl_unbusy(ctrl_info); | |
6c223761 KB |
3743 | up(&ctrl_info->sync_request_sem); |
3744 | ||
3745 | return rc; | |
3746 | } | |
3747 | ||
3748 | static int pqi_validate_admin_response( | |
3749 | struct pqi_general_admin_response *response, u8 expected_function_code) | |
3750 | { | |
3751 | if (response->header.iu_type != PQI_RESPONSE_IU_GENERAL_ADMIN) | |
3752 | return -EINVAL; | |
3753 | ||
3754 | if (get_unaligned_le16(&response->header.iu_length) != | |
3755 | PQI_GENERAL_ADMIN_IU_LENGTH) | |
3756 | return -EINVAL; | |
3757 | ||
3758 | if (response->function_code != expected_function_code) | |
3759 | return -EINVAL; | |
3760 | ||
3761 | if (response->status != PQI_GENERAL_ADMIN_STATUS_SUCCESS) | |
3762 | return -EINVAL; | |
3763 | ||
3764 | return 0; | |
3765 | } | |
3766 | ||
3767 | static int pqi_submit_admin_request_synchronous( | |
3768 | struct pqi_ctrl_info *ctrl_info, | |
3769 | struct pqi_general_admin_request *request, | |
3770 | struct pqi_general_admin_response *response) | |
3771 | { | |
3772 | int rc; | |
3773 | ||
3774 | pqi_submit_admin_request(ctrl_info, request); | |
3775 | ||
3776 | rc = pqi_poll_for_admin_response(ctrl_info, response); | |
3777 | ||
3778 | if (rc == 0) | |
3779 | rc = pqi_validate_admin_response(response, | |
3780 | request->function_code); | |
3781 | ||
3782 | return rc; | |
3783 | } | |
3784 | ||
3785 | static int pqi_report_device_capability(struct pqi_ctrl_info *ctrl_info) | |
3786 | { | |
3787 | int rc; | |
3788 | struct pqi_general_admin_request request; | |
3789 | struct pqi_general_admin_response response; | |
3790 | struct pqi_device_capability *capability; | |
3791 | struct pqi_iu_layer_descriptor *sop_iu_layer_descriptor; | |
3792 | ||
3793 | capability = kmalloc(sizeof(*capability), GFP_KERNEL); | |
3794 | if (!capability) | |
3795 | return -ENOMEM; | |
3796 | ||
3797 | memset(&request, 0, sizeof(request)); | |
3798 | ||
3799 | request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; | |
3800 | put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, | |
3801 | &request.header.iu_length); | |
3802 | request.function_code = | |
3803 | PQI_GENERAL_ADMIN_FUNCTION_REPORT_DEVICE_CAPABILITY; | |
3804 | put_unaligned_le32(sizeof(*capability), | |
3805 | &request.data.report_device_capability.buffer_length); | |
3806 | ||
3807 | rc = pqi_map_single(ctrl_info->pci_dev, | |
3808 | &request.data.report_device_capability.sg_descriptor, | |
3809 | capability, sizeof(*capability), | |
3810 | PCI_DMA_FROMDEVICE); | |
3811 | if (rc) | |
3812 | goto out; | |
3813 | ||
3814 | rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, | |
3815 | &response); | |
3816 | ||
3817 | pqi_pci_unmap(ctrl_info->pci_dev, | |
3818 | &request.data.report_device_capability.sg_descriptor, 1, | |
3819 | PCI_DMA_FROMDEVICE); | |
3820 | ||
3821 | if (rc) | |
3822 | goto out; | |
3823 | ||
3824 | if (response.status != PQI_GENERAL_ADMIN_STATUS_SUCCESS) { | |
3825 | rc = -EIO; | |
3826 | goto out; | |
3827 | } | |
3828 | ||
3829 | ctrl_info->max_inbound_queues = | |
3830 | get_unaligned_le16(&capability->max_inbound_queues); | |
3831 | ctrl_info->max_elements_per_iq = | |
3832 | get_unaligned_le16(&capability->max_elements_per_iq); | |
3833 | ctrl_info->max_iq_element_length = | |
3834 | get_unaligned_le16(&capability->max_iq_element_length) | |
3835 | * 16; | |
3836 | ctrl_info->max_outbound_queues = | |
3837 | get_unaligned_le16(&capability->max_outbound_queues); | |
3838 | ctrl_info->max_elements_per_oq = | |
3839 | get_unaligned_le16(&capability->max_elements_per_oq); | |
3840 | ctrl_info->max_oq_element_length = | |
3841 | get_unaligned_le16(&capability->max_oq_element_length) | |
3842 | * 16; | |
3843 | ||
3844 | sop_iu_layer_descriptor = | |
3845 | &capability->iu_layer_descriptors[PQI_PROTOCOL_SOP]; | |
3846 | ||
3847 | ctrl_info->max_inbound_iu_length_per_firmware = | |
3848 | get_unaligned_le16( | |
3849 | &sop_iu_layer_descriptor->max_inbound_iu_length); | |
3850 | ctrl_info->inbound_spanning_supported = | |
3851 | sop_iu_layer_descriptor->inbound_spanning_supported; | |
3852 | ctrl_info->outbound_spanning_supported = | |
3853 | sop_iu_layer_descriptor->outbound_spanning_supported; | |
3854 | ||
3855 | out: | |
3856 | kfree(capability); | |
3857 | ||
3858 | return rc; | |
3859 | } | |
3860 | ||
3861 | static int pqi_validate_device_capability(struct pqi_ctrl_info *ctrl_info) | |
3862 | { | |
3863 | if (ctrl_info->max_iq_element_length < | |
3864 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) { | |
3865 | dev_err(&ctrl_info->pci_dev->dev, | |
3866 | "max. inbound queue element length of %d is less than the required length of %d\n", | |
3867 | ctrl_info->max_iq_element_length, | |
3868 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); | |
3869 | return -EINVAL; | |
3870 | } | |
3871 | ||
3872 | if (ctrl_info->max_oq_element_length < | |
3873 | PQI_OPERATIONAL_OQ_ELEMENT_LENGTH) { | |
3874 | dev_err(&ctrl_info->pci_dev->dev, | |
3875 | "max. outbound queue element length of %d is less than the required length of %d\n", | |
3876 | ctrl_info->max_oq_element_length, | |
3877 | PQI_OPERATIONAL_OQ_ELEMENT_LENGTH); | |
3878 | return -EINVAL; | |
3879 | } | |
3880 | ||
3881 | if (ctrl_info->max_inbound_iu_length_per_firmware < | |
3882 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) { | |
3883 | dev_err(&ctrl_info->pci_dev->dev, | |
3884 | "max. inbound IU length of %u is less than the min. required length of %d\n", | |
3885 | ctrl_info->max_inbound_iu_length_per_firmware, | |
3886 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); | |
3887 | return -EINVAL; | |
3888 | } | |
3889 | ||
77668f41 KB |
3890 | if (!ctrl_info->inbound_spanning_supported) { |
3891 | dev_err(&ctrl_info->pci_dev->dev, | |
3892 | "the controller does not support inbound spanning\n"); | |
3893 | return -EINVAL; | |
3894 | } | |
3895 | ||
3896 | if (ctrl_info->outbound_spanning_supported) { | |
3897 | dev_err(&ctrl_info->pci_dev->dev, | |
3898 | "the controller supports outbound spanning but this driver does not\n"); | |
3899 | return -EINVAL; | |
3900 | } | |
3901 | ||
6c223761 KB |
3902 | return 0; |
3903 | } | |
3904 | ||
3905 | static int pqi_delete_operational_queue(struct pqi_ctrl_info *ctrl_info, | |
3906 | bool inbound_queue, u16 queue_id) | |
3907 | { | |
3908 | struct pqi_general_admin_request request; | |
3909 | struct pqi_general_admin_response response; | |
3910 | ||
3911 | memset(&request, 0, sizeof(request)); | |
3912 | request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; | |
3913 | put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, | |
3914 | &request.header.iu_length); | |
3915 | if (inbound_queue) | |
3916 | request.function_code = | |
3917 | PQI_GENERAL_ADMIN_FUNCTION_DELETE_IQ; | |
3918 | else | |
3919 | request.function_code = | |
3920 | PQI_GENERAL_ADMIN_FUNCTION_DELETE_OQ; | |
3921 | put_unaligned_le16(queue_id, | |
3922 | &request.data.delete_operational_queue.queue_id); | |
3923 | ||
3924 | return pqi_submit_admin_request_synchronous(ctrl_info, &request, | |
3925 | &response); | |
3926 | } | |
3927 | ||
3928 | static int pqi_create_event_queue(struct pqi_ctrl_info *ctrl_info) | |
3929 | { | |
3930 | int rc; | |
3931 | struct pqi_event_queue *event_queue; | |
3932 | struct pqi_general_admin_request request; | |
3933 | struct pqi_general_admin_response response; | |
3934 | ||
3935 | event_queue = &ctrl_info->event_queue; | |
3936 | ||
3937 | /* | |
3938 | * Create OQ (Outbound Queue - device to host queue) to dedicate | |
3939 | * to events. | |
3940 | */ | |
3941 | memset(&request, 0, sizeof(request)); | |
3942 | request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; | |
3943 | put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, | |
3944 | &request.header.iu_length); | |
3945 | request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ; | |
3946 | put_unaligned_le16(event_queue->oq_id, | |
3947 | &request.data.create_operational_oq.queue_id); | |
3948 | put_unaligned_le64((u64)event_queue->oq_element_array_bus_addr, | |
3949 | &request.data.create_operational_oq.element_array_addr); | |
3950 | put_unaligned_le64((u64)event_queue->oq_pi_bus_addr, | |
3951 | &request.data.create_operational_oq.pi_addr); | |
3952 | put_unaligned_le16(PQI_NUM_EVENT_QUEUE_ELEMENTS, | |
3953 | &request.data.create_operational_oq.num_elements); | |
3954 | put_unaligned_le16(PQI_EVENT_OQ_ELEMENT_LENGTH / 16, | |
3955 | &request.data.create_operational_oq.element_length); | |
3956 | request.data.create_operational_oq.queue_protocol = PQI_PROTOCOL_SOP; | |
3957 | put_unaligned_le16(event_queue->int_msg_num, | |
3958 | &request.data.create_operational_oq.int_msg_num); | |
3959 | ||
3960 | rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, | |
3961 | &response); | |
3962 | if (rc) | |
3963 | return rc; | |
3964 | ||
3965 | event_queue->oq_ci = ctrl_info->iomem_base + | |
3966 | PQI_DEVICE_REGISTERS_OFFSET + | |
3967 | get_unaligned_le64( | |
3968 | &response.data.create_operational_oq.oq_ci_offset); | |
3969 | ||
3970 | return 0; | |
3971 | } | |
3972 | ||
061ef06a KB |
3973 | static int pqi_create_queue_group(struct pqi_ctrl_info *ctrl_info, |
3974 | unsigned int group_number) | |
6c223761 | 3975 | { |
6c223761 KB |
3976 | int rc; |
3977 | struct pqi_queue_group *queue_group; | |
3978 | struct pqi_general_admin_request request; | |
3979 | struct pqi_general_admin_response response; | |
3980 | ||
061ef06a | 3981 | queue_group = &ctrl_info->queue_groups[group_number]; |
6c223761 KB |
3982 | |
3983 | /* | |
3984 | * Create IQ (Inbound Queue - host to device queue) for | |
3985 | * RAID path. | |
3986 | */ | |
3987 | memset(&request, 0, sizeof(request)); | |
3988 | request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; | |
3989 | put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, | |
3990 | &request.header.iu_length); | |
3991 | request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ; | |
3992 | put_unaligned_le16(queue_group->iq_id[RAID_PATH], | |
3993 | &request.data.create_operational_iq.queue_id); | |
3994 | put_unaligned_le64( | |
3995 | (u64)queue_group->iq_element_array_bus_addr[RAID_PATH], | |
3996 | &request.data.create_operational_iq.element_array_addr); | |
3997 | put_unaligned_le64((u64)queue_group->iq_ci_bus_addr[RAID_PATH], | |
3998 | &request.data.create_operational_iq.ci_addr); | |
3999 | put_unaligned_le16(ctrl_info->num_elements_per_iq, | |
4000 | &request.data.create_operational_iq.num_elements); | |
4001 | put_unaligned_le16(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH / 16, | |
4002 | &request.data.create_operational_iq.element_length); | |
4003 | request.data.create_operational_iq.queue_protocol = PQI_PROTOCOL_SOP; | |
4004 | ||
4005 | rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, | |
4006 | &response); | |
4007 | if (rc) { | |
4008 | dev_err(&ctrl_info->pci_dev->dev, | |
4009 | "error creating inbound RAID queue\n"); | |
4010 | return rc; | |
4011 | } | |
4012 | ||
4013 | queue_group->iq_pi[RAID_PATH] = ctrl_info->iomem_base + | |
4014 | PQI_DEVICE_REGISTERS_OFFSET + | |
4015 | get_unaligned_le64( | |
4016 | &response.data.create_operational_iq.iq_pi_offset); | |
4017 | ||
4018 | /* | |
4019 | * Create IQ (Inbound Queue - host to device queue) for | |
4020 | * Advanced I/O (AIO) path. | |
4021 | */ | |
4022 | memset(&request, 0, sizeof(request)); | |
4023 | request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; | |
4024 | put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, | |
4025 | &request.header.iu_length); | |
4026 | request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ; | |
4027 | put_unaligned_le16(queue_group->iq_id[AIO_PATH], | |
4028 | &request.data.create_operational_iq.queue_id); | |
4029 | put_unaligned_le64((u64)queue_group-> | |
4030 | iq_element_array_bus_addr[AIO_PATH], | |
4031 | &request.data.create_operational_iq.element_array_addr); | |
4032 | put_unaligned_le64((u64)queue_group->iq_ci_bus_addr[AIO_PATH], | |
4033 | &request.data.create_operational_iq.ci_addr); | |
4034 | put_unaligned_le16(ctrl_info->num_elements_per_iq, | |
4035 | &request.data.create_operational_iq.num_elements); | |
4036 | put_unaligned_le16(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH / 16, | |
4037 | &request.data.create_operational_iq.element_length); | |
4038 | request.data.create_operational_iq.queue_protocol = PQI_PROTOCOL_SOP; | |
4039 | ||
4040 | rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, | |
4041 | &response); | |
4042 | if (rc) { | |
4043 | dev_err(&ctrl_info->pci_dev->dev, | |
4044 | "error creating inbound AIO queue\n"); | |
4045 | goto delete_inbound_queue_raid; | |
4046 | } | |
4047 | ||
4048 | queue_group->iq_pi[AIO_PATH] = ctrl_info->iomem_base + | |
4049 | PQI_DEVICE_REGISTERS_OFFSET + | |
4050 | get_unaligned_le64( | |
4051 | &response.data.create_operational_iq.iq_pi_offset); | |
4052 | ||
4053 | /* | |
4054 | * Designate the 2nd IQ as the AIO path. By default, all IQs are | |
4055 | * assumed to be for RAID path I/O unless we change the queue's | |
4056 | * property. | |
4057 | */ | |
4058 | memset(&request, 0, sizeof(request)); | |
4059 | request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; | |
4060 | put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, | |
4061 | &request.header.iu_length); | |
4062 | request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CHANGE_IQ_PROPERTY; | |
4063 | put_unaligned_le16(queue_group->iq_id[AIO_PATH], | |
4064 | &request.data.change_operational_iq_properties.queue_id); | |
4065 | put_unaligned_le32(PQI_IQ_PROPERTY_IS_AIO_QUEUE, | |
4066 | &request.data.change_operational_iq_properties.vendor_specific); | |
4067 | ||
4068 | rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, | |
4069 | &response); | |
4070 | if (rc) { | |
4071 | dev_err(&ctrl_info->pci_dev->dev, | |
4072 | "error changing queue property\n"); | |
4073 | goto delete_inbound_queue_aio; | |
4074 | } | |
4075 | ||
4076 | /* | |
4077 | * Create OQ (Outbound Queue - device to host queue). | |
4078 | */ | |
4079 | memset(&request, 0, sizeof(request)); | |
4080 | request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; | |
4081 | put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, | |
4082 | &request.header.iu_length); | |
4083 | request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ; | |
4084 | put_unaligned_le16(queue_group->oq_id, | |
4085 | &request.data.create_operational_oq.queue_id); | |
4086 | put_unaligned_le64((u64)queue_group->oq_element_array_bus_addr, | |
4087 | &request.data.create_operational_oq.element_array_addr); | |
4088 | put_unaligned_le64((u64)queue_group->oq_pi_bus_addr, | |
4089 | &request.data.create_operational_oq.pi_addr); | |
4090 | put_unaligned_le16(ctrl_info->num_elements_per_oq, | |
4091 | &request.data.create_operational_oq.num_elements); | |
4092 | put_unaligned_le16(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH / 16, | |
4093 | &request.data.create_operational_oq.element_length); | |
4094 | request.data.create_operational_oq.queue_protocol = PQI_PROTOCOL_SOP; | |
4095 | put_unaligned_le16(queue_group->int_msg_num, | |
4096 | &request.data.create_operational_oq.int_msg_num); | |
4097 | ||
4098 | rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, | |
4099 | &response); | |
4100 | if (rc) { | |
4101 | dev_err(&ctrl_info->pci_dev->dev, | |
4102 | "error creating outbound queue\n"); | |
4103 | goto delete_inbound_queue_aio; | |
4104 | } | |
4105 | ||
4106 | queue_group->oq_ci = ctrl_info->iomem_base + | |
4107 | PQI_DEVICE_REGISTERS_OFFSET + | |
4108 | get_unaligned_le64( | |
4109 | &response.data.create_operational_oq.oq_ci_offset); | |
4110 | ||
6c223761 KB |
4111 | return 0; |
4112 | ||
4113 | delete_inbound_queue_aio: | |
4114 | pqi_delete_operational_queue(ctrl_info, true, | |
4115 | queue_group->iq_id[AIO_PATH]); | |
4116 | ||
4117 | delete_inbound_queue_raid: | |
4118 | pqi_delete_operational_queue(ctrl_info, true, | |
4119 | queue_group->iq_id[RAID_PATH]); | |
4120 | ||
4121 | return rc; | |
4122 | } | |
4123 | ||
4124 | static int pqi_create_queues(struct pqi_ctrl_info *ctrl_info) | |
4125 | { | |
4126 | int rc; | |
4127 | unsigned int i; | |
4128 | ||
4129 | rc = pqi_create_event_queue(ctrl_info); | |
4130 | if (rc) { | |
4131 | dev_err(&ctrl_info->pci_dev->dev, | |
4132 | "error creating event queue\n"); | |
4133 | return rc; | |
4134 | } | |
4135 | ||
4136 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
061ef06a | 4137 | rc = pqi_create_queue_group(ctrl_info, i); |
6c223761 KB |
4138 | if (rc) { |
4139 | dev_err(&ctrl_info->pci_dev->dev, | |
4140 | "error creating queue group number %u/%u\n", | |
4141 | i, ctrl_info->num_queue_groups); | |
4142 | return rc; | |
4143 | } | |
4144 | } | |
4145 | ||
4146 | return 0; | |
4147 | } | |
4148 | ||
4149 | #define PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH \ | |
4150 | (offsetof(struct pqi_event_config, descriptors) + \ | |
4151 | (PQI_MAX_EVENT_DESCRIPTORS * sizeof(struct pqi_event_descriptor))) | |
4152 | ||
6a50d6ad KB |
4153 | static int pqi_configure_events(struct pqi_ctrl_info *ctrl_info, |
4154 | bool enable_events) | |
6c223761 KB |
4155 | { |
4156 | int rc; | |
4157 | unsigned int i; | |
4158 | struct pqi_event_config *event_config; | |
6a50d6ad | 4159 | struct pqi_event_descriptor *event_descriptor; |
6c223761 KB |
4160 | struct pqi_general_management_request request; |
4161 | ||
4162 | event_config = kmalloc(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, | |
4163 | GFP_KERNEL); | |
4164 | if (!event_config) | |
4165 | return -ENOMEM; | |
4166 | ||
4167 | memset(&request, 0, sizeof(request)); | |
4168 | ||
4169 | request.header.iu_type = PQI_REQUEST_IU_REPORT_VENDOR_EVENT_CONFIG; | |
4170 | put_unaligned_le16(offsetof(struct pqi_general_management_request, | |
4171 | data.report_event_configuration.sg_descriptors[1]) - | |
4172 | PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length); | |
4173 | put_unaligned_le32(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, | |
4174 | &request.data.report_event_configuration.buffer_length); | |
4175 | ||
4176 | rc = pqi_map_single(ctrl_info->pci_dev, | |
4177 | request.data.report_event_configuration.sg_descriptors, | |
4178 | event_config, PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, | |
4179 | PCI_DMA_FROMDEVICE); | |
4180 | if (rc) | |
4181 | goto out; | |
4182 | ||
4183 | rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, | |
4184 | 0, NULL, NO_TIMEOUT); | |
4185 | ||
4186 | pqi_pci_unmap(ctrl_info->pci_dev, | |
4187 | request.data.report_event_configuration.sg_descriptors, 1, | |
4188 | PCI_DMA_FROMDEVICE); | |
4189 | ||
4190 | if (rc) | |
4191 | goto out; | |
4192 | ||
6a50d6ad KB |
4193 | for (i = 0; i < event_config->num_event_descriptors; i++) { |
4194 | event_descriptor = &event_config->descriptors[i]; | |
4195 | if (enable_events && | |
4196 | pqi_is_supported_event(event_descriptor->event_type)) | |
4197 | put_unaligned_le16(ctrl_info->event_queue.oq_id, | |
4198 | &event_descriptor->oq_id); | |
4199 | else | |
4200 | put_unaligned_le16(0, &event_descriptor->oq_id); | |
4201 | } | |
6c223761 KB |
4202 | |
4203 | memset(&request, 0, sizeof(request)); | |
4204 | ||
4205 | request.header.iu_type = PQI_REQUEST_IU_SET_VENDOR_EVENT_CONFIG; | |
4206 | put_unaligned_le16(offsetof(struct pqi_general_management_request, | |
4207 | data.report_event_configuration.sg_descriptors[1]) - | |
4208 | PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length); | |
4209 | put_unaligned_le32(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, | |
4210 | &request.data.report_event_configuration.buffer_length); | |
4211 | ||
4212 | rc = pqi_map_single(ctrl_info->pci_dev, | |
4213 | request.data.report_event_configuration.sg_descriptors, | |
4214 | event_config, PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, | |
4215 | PCI_DMA_TODEVICE); | |
4216 | if (rc) | |
4217 | goto out; | |
4218 | ||
4219 | rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, | |
4220 | NULL, NO_TIMEOUT); | |
4221 | ||
4222 | pqi_pci_unmap(ctrl_info->pci_dev, | |
4223 | request.data.report_event_configuration.sg_descriptors, 1, | |
4224 | PCI_DMA_TODEVICE); | |
4225 | ||
4226 | out: | |
4227 | kfree(event_config); | |
4228 | ||
4229 | return rc; | |
4230 | } | |
4231 | ||
6a50d6ad KB |
4232 | static inline int pqi_enable_events(struct pqi_ctrl_info *ctrl_info) |
4233 | { | |
4234 | return pqi_configure_events(ctrl_info, true); | |
4235 | } | |
4236 | ||
4237 | static inline int pqi_disable_events(struct pqi_ctrl_info *ctrl_info) | |
4238 | { | |
4239 | return pqi_configure_events(ctrl_info, false); | |
4240 | } | |
4241 | ||
6c223761 KB |
4242 | static void pqi_free_all_io_requests(struct pqi_ctrl_info *ctrl_info) |
4243 | { | |
4244 | unsigned int i; | |
4245 | struct device *dev; | |
4246 | size_t sg_chain_buffer_length; | |
4247 | struct pqi_io_request *io_request; | |
4248 | ||
4249 | if (!ctrl_info->io_request_pool) | |
4250 | return; | |
4251 | ||
4252 | dev = &ctrl_info->pci_dev->dev; | |
4253 | sg_chain_buffer_length = ctrl_info->sg_chain_buffer_length; | |
4254 | io_request = ctrl_info->io_request_pool; | |
4255 | ||
4256 | for (i = 0; i < ctrl_info->max_io_slots; i++) { | |
4257 | kfree(io_request->iu); | |
4258 | if (!io_request->sg_chain_buffer) | |
4259 | break; | |
4260 | dma_free_coherent(dev, sg_chain_buffer_length, | |
4261 | io_request->sg_chain_buffer, | |
4262 | io_request->sg_chain_buffer_dma_handle); | |
4263 | io_request++; | |
4264 | } | |
4265 | ||
4266 | kfree(ctrl_info->io_request_pool); | |
4267 | ctrl_info->io_request_pool = NULL; | |
4268 | } | |
4269 | ||
4270 | static inline int pqi_alloc_error_buffer(struct pqi_ctrl_info *ctrl_info) | |
4271 | { | |
4272 | ctrl_info->error_buffer = dma_zalloc_coherent(&ctrl_info->pci_dev->dev, | |
4273 | ctrl_info->error_buffer_length, | |
4274 | &ctrl_info->error_buffer_dma_handle, GFP_KERNEL); | |
4275 | ||
4276 | if (!ctrl_info->error_buffer) | |
4277 | return -ENOMEM; | |
4278 | ||
4279 | return 0; | |
4280 | } | |
4281 | ||
4282 | static int pqi_alloc_io_resources(struct pqi_ctrl_info *ctrl_info) | |
4283 | { | |
4284 | unsigned int i; | |
4285 | void *sg_chain_buffer; | |
4286 | size_t sg_chain_buffer_length; | |
4287 | dma_addr_t sg_chain_buffer_dma_handle; | |
4288 | struct device *dev; | |
4289 | struct pqi_io_request *io_request; | |
4290 | ||
4291 | ctrl_info->io_request_pool = kzalloc(ctrl_info->max_io_slots * | |
4292 | sizeof(ctrl_info->io_request_pool[0]), GFP_KERNEL); | |
4293 | ||
4294 | if (!ctrl_info->io_request_pool) { | |
4295 | dev_err(&ctrl_info->pci_dev->dev, | |
4296 | "failed to allocate I/O request pool\n"); | |
4297 | goto error; | |
4298 | } | |
4299 | ||
4300 | dev = &ctrl_info->pci_dev->dev; | |
4301 | sg_chain_buffer_length = ctrl_info->sg_chain_buffer_length; | |
4302 | io_request = ctrl_info->io_request_pool; | |
4303 | ||
4304 | for (i = 0; i < ctrl_info->max_io_slots; i++) { | |
4305 | io_request->iu = | |
4306 | kmalloc(ctrl_info->max_inbound_iu_length, GFP_KERNEL); | |
4307 | ||
4308 | if (!io_request->iu) { | |
4309 | dev_err(&ctrl_info->pci_dev->dev, | |
4310 | "failed to allocate IU buffers\n"); | |
4311 | goto error; | |
4312 | } | |
4313 | ||
4314 | sg_chain_buffer = dma_alloc_coherent(dev, | |
4315 | sg_chain_buffer_length, &sg_chain_buffer_dma_handle, | |
4316 | GFP_KERNEL); | |
4317 | ||
4318 | if (!sg_chain_buffer) { | |
4319 | dev_err(&ctrl_info->pci_dev->dev, | |
4320 | "failed to allocate PQI scatter-gather chain buffers\n"); | |
4321 | goto error; | |
4322 | } | |
4323 | ||
4324 | io_request->index = i; | |
4325 | io_request->sg_chain_buffer = sg_chain_buffer; | |
4326 | io_request->sg_chain_buffer_dma_handle = | |
4327 | sg_chain_buffer_dma_handle; | |
4328 | io_request++; | |
4329 | } | |
4330 | ||
4331 | return 0; | |
4332 | ||
4333 | error: | |
4334 | pqi_free_all_io_requests(ctrl_info); | |
4335 | ||
4336 | return -ENOMEM; | |
4337 | } | |
4338 | ||
4339 | /* | |
4340 | * Calculate required resources that are sized based on max. outstanding | |
4341 | * requests and max. transfer size. | |
4342 | */ | |
4343 | ||
4344 | static void pqi_calculate_io_resources(struct pqi_ctrl_info *ctrl_info) | |
4345 | { | |
4346 | u32 max_transfer_size; | |
4347 | u32 max_sg_entries; | |
4348 | ||
4349 | ctrl_info->scsi_ml_can_queue = | |
4350 | ctrl_info->max_outstanding_requests - PQI_RESERVED_IO_SLOTS; | |
4351 | ctrl_info->max_io_slots = ctrl_info->max_outstanding_requests; | |
4352 | ||
4353 | ctrl_info->error_buffer_length = | |
4354 | ctrl_info->max_io_slots * PQI_ERROR_BUFFER_ELEMENT_LENGTH; | |
4355 | ||
d727a776 KB |
4356 | if (reset_devices) |
4357 | max_transfer_size = min(ctrl_info->max_transfer_size, | |
4358 | PQI_MAX_TRANSFER_SIZE_KDUMP); | |
4359 | else | |
4360 | max_transfer_size = min(ctrl_info->max_transfer_size, | |
4361 | PQI_MAX_TRANSFER_SIZE); | |
6c223761 KB |
4362 | |
4363 | max_sg_entries = max_transfer_size / PAGE_SIZE; | |
4364 | ||
4365 | /* +1 to cover when the buffer is not page-aligned. */ | |
4366 | max_sg_entries++; | |
4367 | ||
4368 | max_sg_entries = min(ctrl_info->max_sg_entries, max_sg_entries); | |
4369 | ||
4370 | max_transfer_size = (max_sg_entries - 1) * PAGE_SIZE; | |
4371 | ||
4372 | ctrl_info->sg_chain_buffer_length = | |
e1d213bd KB |
4373 | (max_sg_entries * sizeof(struct pqi_sg_descriptor)) + |
4374 | PQI_EXTRA_SGL_MEMORY; | |
6c223761 KB |
4375 | ctrl_info->sg_tablesize = max_sg_entries; |
4376 | ctrl_info->max_sectors = max_transfer_size / 512; | |
4377 | } | |
4378 | ||
4379 | static void pqi_calculate_queue_resources(struct pqi_ctrl_info *ctrl_info) | |
4380 | { | |
6c223761 KB |
4381 | int num_queue_groups; |
4382 | u16 num_elements_per_iq; | |
4383 | u16 num_elements_per_oq; | |
4384 | ||
d727a776 KB |
4385 | if (reset_devices) { |
4386 | num_queue_groups = 1; | |
4387 | } else { | |
4388 | int num_cpus; | |
4389 | int max_queue_groups; | |
4390 | ||
4391 | max_queue_groups = min(ctrl_info->max_inbound_queues / 2, | |
4392 | ctrl_info->max_outbound_queues - 1); | |
4393 | max_queue_groups = min(max_queue_groups, PQI_MAX_QUEUE_GROUPS); | |
6c223761 | 4394 | |
d727a776 KB |
4395 | num_cpus = num_online_cpus(); |
4396 | num_queue_groups = min(num_cpus, ctrl_info->max_msix_vectors); | |
4397 | num_queue_groups = min(num_queue_groups, max_queue_groups); | |
4398 | } | |
6c223761 KB |
4399 | |
4400 | ctrl_info->num_queue_groups = num_queue_groups; | |
061ef06a | 4401 | ctrl_info->max_hw_queue_index = num_queue_groups - 1; |
6c223761 | 4402 | |
77668f41 KB |
4403 | /* |
4404 | * Make sure that the max. inbound IU length is an even multiple | |
4405 | * of our inbound element length. | |
4406 | */ | |
4407 | ctrl_info->max_inbound_iu_length = | |
4408 | (ctrl_info->max_inbound_iu_length_per_firmware / | |
4409 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) * | |
4410 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH; | |
6c223761 KB |
4411 | |
4412 | num_elements_per_iq = | |
4413 | (ctrl_info->max_inbound_iu_length / | |
4414 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); | |
4415 | ||
4416 | /* Add one because one element in each queue is unusable. */ | |
4417 | num_elements_per_iq++; | |
4418 | ||
4419 | num_elements_per_iq = min(num_elements_per_iq, | |
4420 | ctrl_info->max_elements_per_iq); | |
4421 | ||
4422 | num_elements_per_oq = ((num_elements_per_iq - 1) * 2) + 1; | |
4423 | num_elements_per_oq = min(num_elements_per_oq, | |
4424 | ctrl_info->max_elements_per_oq); | |
4425 | ||
4426 | ctrl_info->num_elements_per_iq = num_elements_per_iq; | |
4427 | ctrl_info->num_elements_per_oq = num_elements_per_oq; | |
4428 | ||
4429 | ctrl_info->max_sg_per_iu = | |
4430 | ((ctrl_info->max_inbound_iu_length - | |
4431 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) / | |
4432 | sizeof(struct pqi_sg_descriptor)) + | |
4433 | PQI_MAX_EMBEDDED_SG_DESCRIPTORS; | |
4434 | } | |
4435 | ||
4436 | static inline void pqi_set_sg_descriptor( | |
4437 | struct pqi_sg_descriptor *sg_descriptor, struct scatterlist *sg) | |
4438 | { | |
4439 | u64 address = (u64)sg_dma_address(sg); | |
4440 | unsigned int length = sg_dma_len(sg); | |
4441 | ||
4442 | put_unaligned_le64(address, &sg_descriptor->address); | |
4443 | put_unaligned_le32(length, &sg_descriptor->length); | |
4444 | put_unaligned_le32(0, &sg_descriptor->flags); | |
4445 | } | |
4446 | ||
4447 | static int pqi_build_raid_sg_list(struct pqi_ctrl_info *ctrl_info, | |
4448 | struct pqi_raid_path_request *request, struct scsi_cmnd *scmd, | |
4449 | struct pqi_io_request *io_request) | |
4450 | { | |
4451 | int i; | |
4452 | u16 iu_length; | |
4453 | int sg_count; | |
4454 | bool chained; | |
4455 | unsigned int num_sg_in_iu; | |
4456 | unsigned int max_sg_per_iu; | |
4457 | struct scatterlist *sg; | |
4458 | struct pqi_sg_descriptor *sg_descriptor; | |
4459 | ||
4460 | sg_count = scsi_dma_map(scmd); | |
4461 | if (sg_count < 0) | |
4462 | return sg_count; | |
4463 | ||
4464 | iu_length = offsetof(struct pqi_raid_path_request, sg_descriptors) - | |
4465 | PQI_REQUEST_HEADER_LENGTH; | |
4466 | ||
4467 | if (sg_count == 0) | |
4468 | goto out; | |
4469 | ||
4470 | sg = scsi_sglist(scmd); | |
4471 | sg_descriptor = request->sg_descriptors; | |
4472 | max_sg_per_iu = ctrl_info->max_sg_per_iu - 1; | |
4473 | chained = false; | |
4474 | num_sg_in_iu = 0; | |
4475 | i = 0; | |
4476 | ||
4477 | while (1) { | |
4478 | pqi_set_sg_descriptor(sg_descriptor, sg); | |
4479 | if (!chained) | |
4480 | num_sg_in_iu++; | |
4481 | i++; | |
4482 | if (i == sg_count) | |
4483 | break; | |
4484 | sg_descriptor++; | |
4485 | if (i == max_sg_per_iu) { | |
4486 | put_unaligned_le64( | |
4487 | (u64)io_request->sg_chain_buffer_dma_handle, | |
4488 | &sg_descriptor->address); | |
4489 | put_unaligned_le32((sg_count - num_sg_in_iu) | |
4490 | * sizeof(*sg_descriptor), | |
4491 | &sg_descriptor->length); | |
4492 | put_unaligned_le32(CISS_SG_CHAIN, | |
4493 | &sg_descriptor->flags); | |
4494 | chained = true; | |
4495 | num_sg_in_iu++; | |
4496 | sg_descriptor = io_request->sg_chain_buffer; | |
4497 | } | |
4498 | sg = sg_next(sg); | |
4499 | } | |
4500 | ||
4501 | put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags); | |
4502 | request->partial = chained; | |
4503 | iu_length += num_sg_in_iu * sizeof(*sg_descriptor); | |
4504 | ||
4505 | out: | |
4506 | put_unaligned_le16(iu_length, &request->header.iu_length); | |
4507 | ||
4508 | return 0; | |
4509 | } | |
4510 | ||
4511 | static int pqi_build_aio_sg_list(struct pqi_ctrl_info *ctrl_info, | |
4512 | struct pqi_aio_path_request *request, struct scsi_cmnd *scmd, | |
4513 | struct pqi_io_request *io_request) | |
4514 | { | |
4515 | int i; | |
4516 | u16 iu_length; | |
4517 | int sg_count; | |
a60eec02 KB |
4518 | bool chained; |
4519 | unsigned int num_sg_in_iu; | |
4520 | unsigned int max_sg_per_iu; | |
6c223761 KB |
4521 | struct scatterlist *sg; |
4522 | struct pqi_sg_descriptor *sg_descriptor; | |
4523 | ||
4524 | sg_count = scsi_dma_map(scmd); | |
4525 | if (sg_count < 0) | |
4526 | return sg_count; | |
a60eec02 KB |
4527 | |
4528 | iu_length = offsetof(struct pqi_aio_path_request, sg_descriptors) - | |
4529 | PQI_REQUEST_HEADER_LENGTH; | |
4530 | num_sg_in_iu = 0; | |
4531 | ||
6c223761 KB |
4532 | if (sg_count == 0) |
4533 | goto out; | |
4534 | ||
a60eec02 KB |
4535 | sg = scsi_sglist(scmd); |
4536 | sg_descriptor = request->sg_descriptors; | |
4537 | max_sg_per_iu = ctrl_info->max_sg_per_iu - 1; | |
4538 | chained = false; | |
4539 | i = 0; | |
4540 | ||
4541 | while (1) { | |
4542 | pqi_set_sg_descriptor(sg_descriptor, sg); | |
4543 | if (!chained) | |
4544 | num_sg_in_iu++; | |
4545 | i++; | |
4546 | if (i == sg_count) | |
4547 | break; | |
4548 | sg_descriptor++; | |
4549 | if (i == max_sg_per_iu) { | |
4550 | put_unaligned_le64( | |
4551 | (u64)io_request->sg_chain_buffer_dma_handle, | |
4552 | &sg_descriptor->address); | |
4553 | put_unaligned_le32((sg_count - num_sg_in_iu) | |
4554 | * sizeof(*sg_descriptor), | |
4555 | &sg_descriptor->length); | |
4556 | put_unaligned_le32(CISS_SG_CHAIN, | |
4557 | &sg_descriptor->flags); | |
4558 | chained = true; | |
4559 | num_sg_in_iu++; | |
4560 | sg_descriptor = io_request->sg_chain_buffer; | |
6c223761 | 4561 | } |
a60eec02 | 4562 | sg = sg_next(sg); |
6c223761 KB |
4563 | } |
4564 | ||
a60eec02 KB |
4565 | put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags); |
4566 | request->partial = chained; | |
6c223761 | 4567 | iu_length += num_sg_in_iu * sizeof(*sg_descriptor); |
a60eec02 KB |
4568 | |
4569 | out: | |
6c223761 KB |
4570 | put_unaligned_le16(iu_length, &request->header.iu_length); |
4571 | request->num_sg_descriptors = num_sg_in_iu; | |
4572 | ||
4573 | return 0; | |
4574 | } | |
4575 | ||
4576 | static void pqi_raid_io_complete(struct pqi_io_request *io_request, | |
4577 | void *context) | |
4578 | { | |
4579 | struct scsi_cmnd *scmd; | |
4580 | ||
4581 | scmd = io_request->scmd; | |
4582 | pqi_free_io_request(io_request); | |
4583 | scsi_dma_unmap(scmd); | |
4584 | pqi_scsi_done(scmd); | |
4585 | } | |
4586 | ||
376fb880 KB |
4587 | static int pqi_raid_submit_scsi_cmd_with_io_request( |
4588 | struct pqi_ctrl_info *ctrl_info, struct pqi_io_request *io_request, | |
6c223761 KB |
4589 | struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, |
4590 | struct pqi_queue_group *queue_group) | |
4591 | { | |
4592 | int rc; | |
4593 | size_t cdb_length; | |
6c223761 KB |
4594 | struct pqi_raid_path_request *request; |
4595 | ||
6c223761 KB |
4596 | io_request->io_complete_callback = pqi_raid_io_complete; |
4597 | io_request->scmd = scmd; | |
4598 | ||
6c223761 KB |
4599 | request = io_request->iu; |
4600 | memset(request, 0, | |
4601 | offsetof(struct pqi_raid_path_request, sg_descriptors)); | |
4602 | ||
4603 | request->header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO; | |
4604 | put_unaligned_le32(scsi_bufflen(scmd), &request->buffer_length); | |
4605 | request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; | |
4606 | put_unaligned_le16(io_request->index, &request->request_id); | |
4607 | request->error_index = request->request_id; | |
4608 | memcpy(request->lun_number, device->scsi3addr, | |
4609 | sizeof(request->lun_number)); | |
4610 | ||
4611 | cdb_length = min_t(size_t, scmd->cmd_len, sizeof(request->cdb)); | |
4612 | memcpy(request->cdb, scmd->cmnd, cdb_length); | |
4613 | ||
4614 | switch (cdb_length) { | |
4615 | case 6: | |
4616 | case 10: | |
4617 | case 12: | |
4618 | case 16: | |
4619 | /* No bytes in the Additional CDB bytes field */ | |
4620 | request->additional_cdb_bytes_usage = | |
4621 | SOP_ADDITIONAL_CDB_BYTES_0; | |
4622 | break; | |
4623 | case 20: | |
4624 | /* 4 bytes in the Additional cdb field */ | |
4625 | request->additional_cdb_bytes_usage = | |
4626 | SOP_ADDITIONAL_CDB_BYTES_4; | |
4627 | break; | |
4628 | case 24: | |
4629 | /* 8 bytes in the Additional cdb field */ | |
4630 | request->additional_cdb_bytes_usage = | |
4631 | SOP_ADDITIONAL_CDB_BYTES_8; | |
4632 | break; | |
4633 | case 28: | |
4634 | /* 12 bytes in the Additional cdb field */ | |
4635 | request->additional_cdb_bytes_usage = | |
4636 | SOP_ADDITIONAL_CDB_BYTES_12; | |
4637 | break; | |
4638 | case 32: | |
4639 | default: | |
4640 | /* 16 bytes in the Additional cdb field */ | |
4641 | request->additional_cdb_bytes_usage = | |
4642 | SOP_ADDITIONAL_CDB_BYTES_16; | |
4643 | break; | |
4644 | } | |
4645 | ||
4646 | switch (scmd->sc_data_direction) { | |
4647 | case DMA_TO_DEVICE: | |
4648 | request->data_direction = SOP_READ_FLAG; | |
4649 | break; | |
4650 | case DMA_FROM_DEVICE: | |
4651 | request->data_direction = SOP_WRITE_FLAG; | |
4652 | break; | |
4653 | case DMA_NONE: | |
4654 | request->data_direction = SOP_NO_DIRECTION_FLAG; | |
4655 | break; | |
4656 | case DMA_BIDIRECTIONAL: | |
4657 | request->data_direction = SOP_BIDIRECTIONAL; | |
4658 | break; | |
4659 | default: | |
4660 | dev_err(&ctrl_info->pci_dev->dev, | |
4661 | "unknown data direction: %d\n", | |
4662 | scmd->sc_data_direction); | |
6c223761 KB |
4663 | break; |
4664 | } | |
4665 | ||
4666 | rc = pqi_build_raid_sg_list(ctrl_info, request, scmd, io_request); | |
4667 | if (rc) { | |
4668 | pqi_free_io_request(io_request); | |
4669 | return SCSI_MLQUEUE_HOST_BUSY; | |
4670 | } | |
4671 | ||
4672 | pqi_start_io(ctrl_info, queue_group, RAID_PATH, io_request); | |
4673 | ||
4674 | return 0; | |
4675 | } | |
4676 | ||
376fb880 KB |
4677 | static inline int pqi_raid_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info, |
4678 | struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, | |
4679 | struct pqi_queue_group *queue_group) | |
4680 | { | |
4681 | struct pqi_io_request *io_request; | |
4682 | ||
4683 | io_request = pqi_alloc_io_request(ctrl_info); | |
4684 | ||
4685 | return pqi_raid_submit_scsi_cmd_with_io_request(ctrl_info, io_request, | |
4686 | device, scmd, queue_group); | |
4687 | } | |
4688 | ||
4689 | static inline void pqi_schedule_bypass_retry(struct pqi_ctrl_info *ctrl_info) | |
4690 | { | |
4691 | if (!pqi_ctrl_blocked(ctrl_info)) | |
4692 | schedule_work(&ctrl_info->raid_bypass_retry_work); | |
4693 | } | |
4694 | ||
4695 | static bool pqi_raid_bypass_retry_needed(struct pqi_io_request *io_request) | |
4696 | { | |
4697 | struct scsi_cmnd *scmd; | |
03b288cf | 4698 | struct pqi_scsi_dev *device; |
376fb880 KB |
4699 | struct pqi_ctrl_info *ctrl_info; |
4700 | ||
4701 | if (!io_request->raid_bypass) | |
4702 | return false; | |
4703 | ||
4704 | scmd = io_request->scmd; | |
4705 | if ((scmd->result & 0xff) == SAM_STAT_GOOD) | |
4706 | return false; | |
4707 | if (host_byte(scmd->result) == DID_NO_CONNECT) | |
4708 | return false; | |
4709 | ||
03b288cf KB |
4710 | device = scmd->device->hostdata; |
4711 | if (pqi_device_offline(device)) | |
4712 | return false; | |
4713 | ||
376fb880 KB |
4714 | ctrl_info = shost_to_hba(scmd->device->host); |
4715 | if (pqi_ctrl_offline(ctrl_info)) | |
4716 | return false; | |
4717 | ||
4718 | return true; | |
4719 | } | |
4720 | ||
4721 | static inline void pqi_add_to_raid_bypass_retry_list( | |
4722 | struct pqi_ctrl_info *ctrl_info, | |
4723 | struct pqi_io_request *io_request, bool at_head) | |
4724 | { | |
4725 | unsigned long flags; | |
4726 | ||
4727 | spin_lock_irqsave(&ctrl_info->raid_bypass_retry_list_lock, flags); | |
4728 | if (at_head) | |
4729 | list_add(&io_request->request_list_entry, | |
4730 | &ctrl_info->raid_bypass_retry_list); | |
4731 | else | |
4732 | list_add_tail(&io_request->request_list_entry, | |
4733 | &ctrl_info->raid_bypass_retry_list); | |
4734 | spin_unlock_irqrestore(&ctrl_info->raid_bypass_retry_list_lock, flags); | |
4735 | } | |
4736 | ||
4737 | static void pqi_queued_raid_bypass_complete(struct pqi_io_request *io_request, | |
4738 | void *context) | |
4739 | { | |
4740 | struct scsi_cmnd *scmd; | |
4741 | ||
4742 | scmd = io_request->scmd; | |
4743 | pqi_free_io_request(io_request); | |
4744 | pqi_scsi_done(scmd); | |
4745 | } | |
4746 | ||
4747 | static void pqi_queue_raid_bypass_retry(struct pqi_io_request *io_request) | |
4748 | { | |
4749 | struct scsi_cmnd *scmd; | |
4750 | struct pqi_ctrl_info *ctrl_info; | |
4751 | ||
4752 | io_request->io_complete_callback = pqi_queued_raid_bypass_complete; | |
4753 | scmd = io_request->scmd; | |
4754 | scmd->result = 0; | |
4755 | ctrl_info = shost_to_hba(scmd->device->host); | |
4756 | ||
4757 | pqi_add_to_raid_bypass_retry_list(ctrl_info, io_request, false); | |
4758 | pqi_schedule_bypass_retry(ctrl_info); | |
4759 | } | |
4760 | ||
4761 | static int pqi_retry_raid_bypass(struct pqi_io_request *io_request) | |
4762 | { | |
4763 | struct scsi_cmnd *scmd; | |
4764 | struct pqi_scsi_dev *device; | |
4765 | struct pqi_ctrl_info *ctrl_info; | |
4766 | struct pqi_queue_group *queue_group; | |
4767 | ||
4768 | scmd = io_request->scmd; | |
4769 | device = scmd->device->hostdata; | |
4770 | if (pqi_device_in_reset(device)) { | |
4771 | pqi_free_io_request(io_request); | |
4772 | set_host_byte(scmd, DID_RESET); | |
4773 | pqi_scsi_done(scmd); | |
4774 | return 0; | |
4775 | } | |
4776 | ||
4777 | ctrl_info = shost_to_hba(scmd->device->host); | |
4778 | queue_group = io_request->queue_group; | |
4779 | ||
4780 | pqi_reinit_io_request(io_request); | |
4781 | ||
4782 | return pqi_raid_submit_scsi_cmd_with_io_request(ctrl_info, io_request, | |
4783 | device, scmd, queue_group); | |
4784 | } | |
4785 | ||
4786 | static inline struct pqi_io_request *pqi_next_queued_raid_bypass_request( | |
4787 | struct pqi_ctrl_info *ctrl_info) | |
4788 | { | |
4789 | unsigned long flags; | |
4790 | struct pqi_io_request *io_request; | |
4791 | ||
4792 | spin_lock_irqsave(&ctrl_info->raid_bypass_retry_list_lock, flags); | |
4793 | io_request = list_first_entry_or_null( | |
4794 | &ctrl_info->raid_bypass_retry_list, | |
4795 | struct pqi_io_request, request_list_entry); | |
4796 | if (io_request) | |
4797 | list_del(&io_request->request_list_entry); | |
4798 | spin_unlock_irqrestore(&ctrl_info->raid_bypass_retry_list_lock, flags); | |
4799 | ||
4800 | return io_request; | |
4801 | } | |
4802 | ||
4803 | static void pqi_retry_raid_bypass_requests(struct pqi_ctrl_info *ctrl_info) | |
4804 | { | |
4805 | int rc; | |
4806 | struct pqi_io_request *io_request; | |
4807 | ||
4808 | pqi_ctrl_busy(ctrl_info); | |
4809 | ||
4810 | while (1) { | |
4811 | if (pqi_ctrl_blocked(ctrl_info)) | |
4812 | break; | |
4813 | io_request = pqi_next_queued_raid_bypass_request(ctrl_info); | |
4814 | if (!io_request) | |
4815 | break; | |
4816 | rc = pqi_retry_raid_bypass(io_request); | |
4817 | if (rc) { | |
4818 | pqi_add_to_raid_bypass_retry_list(ctrl_info, io_request, | |
4819 | true); | |
4820 | pqi_schedule_bypass_retry(ctrl_info); | |
4821 | break; | |
4822 | } | |
4823 | } | |
4824 | ||
4825 | pqi_ctrl_unbusy(ctrl_info); | |
4826 | } | |
4827 | ||
4828 | static void pqi_raid_bypass_retry_worker(struct work_struct *work) | |
4829 | { | |
4830 | struct pqi_ctrl_info *ctrl_info; | |
4831 | ||
4832 | ctrl_info = container_of(work, struct pqi_ctrl_info, | |
4833 | raid_bypass_retry_work); | |
4834 | pqi_retry_raid_bypass_requests(ctrl_info); | |
4835 | } | |
4836 | ||
5f310425 KB |
4837 | static void pqi_clear_all_queued_raid_bypass_retries( |
4838 | struct pqi_ctrl_info *ctrl_info) | |
376fb880 KB |
4839 | { |
4840 | unsigned long flags; | |
376fb880 KB |
4841 | |
4842 | spin_lock_irqsave(&ctrl_info->raid_bypass_retry_list_lock, flags); | |
5f310425 | 4843 | INIT_LIST_HEAD(&ctrl_info->raid_bypass_retry_list); |
376fb880 KB |
4844 | spin_unlock_irqrestore(&ctrl_info->raid_bypass_retry_list_lock, flags); |
4845 | } | |
4846 | ||
6c223761 KB |
4847 | static void pqi_aio_io_complete(struct pqi_io_request *io_request, |
4848 | void *context) | |
4849 | { | |
4850 | struct scsi_cmnd *scmd; | |
4851 | ||
4852 | scmd = io_request->scmd; | |
4853 | scsi_dma_unmap(scmd); | |
4854 | if (io_request->status == -EAGAIN) | |
4855 | set_host_byte(scmd, DID_IMM_RETRY); | |
376fb880 KB |
4856 | else if (pqi_raid_bypass_retry_needed(io_request)) { |
4857 | pqi_queue_raid_bypass_retry(io_request); | |
4858 | return; | |
4859 | } | |
6c223761 KB |
4860 | pqi_free_io_request(io_request); |
4861 | pqi_scsi_done(scmd); | |
4862 | } | |
4863 | ||
4864 | static inline int pqi_aio_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info, | |
4865 | struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, | |
4866 | struct pqi_queue_group *queue_group) | |
4867 | { | |
4868 | return pqi_aio_submit_io(ctrl_info, scmd, device->aio_handle, | |
376fb880 | 4869 | scmd->cmnd, scmd->cmd_len, queue_group, NULL, false); |
6c223761 KB |
4870 | } |
4871 | ||
4872 | static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info, | |
4873 | struct scsi_cmnd *scmd, u32 aio_handle, u8 *cdb, | |
4874 | unsigned int cdb_length, struct pqi_queue_group *queue_group, | |
376fb880 | 4875 | struct pqi_encryption_info *encryption_info, bool raid_bypass) |
6c223761 KB |
4876 | { |
4877 | int rc; | |
4878 | struct pqi_io_request *io_request; | |
4879 | struct pqi_aio_path_request *request; | |
4880 | ||
4881 | io_request = pqi_alloc_io_request(ctrl_info); | |
4882 | io_request->io_complete_callback = pqi_aio_io_complete; | |
4883 | io_request->scmd = scmd; | |
376fb880 | 4884 | io_request->raid_bypass = raid_bypass; |
6c223761 KB |
4885 | |
4886 | request = io_request->iu; | |
4887 | memset(request, 0, | |
4888 | offsetof(struct pqi_raid_path_request, sg_descriptors)); | |
4889 | ||
4890 | request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_IO; | |
4891 | put_unaligned_le32(aio_handle, &request->nexus_id); | |
4892 | put_unaligned_le32(scsi_bufflen(scmd), &request->buffer_length); | |
4893 | request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; | |
4894 | put_unaligned_le16(io_request->index, &request->request_id); | |
4895 | request->error_index = request->request_id; | |
4896 | if (cdb_length > sizeof(request->cdb)) | |
4897 | cdb_length = sizeof(request->cdb); | |
4898 | request->cdb_length = cdb_length; | |
4899 | memcpy(request->cdb, cdb, cdb_length); | |
4900 | ||
4901 | switch (scmd->sc_data_direction) { | |
4902 | case DMA_TO_DEVICE: | |
4903 | request->data_direction = SOP_READ_FLAG; | |
4904 | break; | |
4905 | case DMA_FROM_DEVICE: | |
4906 | request->data_direction = SOP_WRITE_FLAG; | |
4907 | break; | |
4908 | case DMA_NONE: | |
4909 | request->data_direction = SOP_NO_DIRECTION_FLAG; | |
4910 | break; | |
4911 | case DMA_BIDIRECTIONAL: | |
4912 | request->data_direction = SOP_BIDIRECTIONAL; | |
4913 | break; | |
4914 | default: | |
4915 | dev_err(&ctrl_info->pci_dev->dev, | |
4916 | "unknown data direction: %d\n", | |
4917 | scmd->sc_data_direction); | |
6c223761 KB |
4918 | break; |
4919 | } | |
4920 | ||
4921 | if (encryption_info) { | |
4922 | request->encryption_enable = true; | |
4923 | put_unaligned_le16(encryption_info->data_encryption_key_index, | |
4924 | &request->data_encryption_key_index); | |
4925 | put_unaligned_le32(encryption_info->encrypt_tweak_lower, | |
4926 | &request->encrypt_tweak_lower); | |
4927 | put_unaligned_le32(encryption_info->encrypt_tweak_upper, | |
4928 | &request->encrypt_tweak_upper); | |
4929 | } | |
4930 | ||
4931 | rc = pqi_build_aio_sg_list(ctrl_info, request, scmd, io_request); | |
4932 | if (rc) { | |
4933 | pqi_free_io_request(io_request); | |
4934 | return SCSI_MLQUEUE_HOST_BUSY; | |
4935 | } | |
4936 | ||
4937 | pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request); | |
4938 | ||
4939 | return 0; | |
4940 | } | |
4941 | ||
061ef06a KB |
4942 | static inline u16 pqi_get_hw_queue(struct pqi_ctrl_info *ctrl_info, |
4943 | struct scsi_cmnd *scmd) | |
4944 | { | |
4945 | u16 hw_queue; | |
4946 | ||
4947 | hw_queue = blk_mq_unique_tag_to_hwq(blk_mq_unique_tag(scmd->request)); | |
4948 | if (hw_queue > ctrl_info->max_hw_queue_index) | |
4949 | hw_queue = 0; | |
4950 | ||
4951 | return hw_queue; | |
4952 | } | |
4953 | ||
7561a7e4 KB |
4954 | /* |
4955 | * This function gets called just before we hand the completed SCSI request | |
4956 | * back to the SML. | |
4957 | */ | |
4958 | ||
4959 | void pqi_prep_for_scsi_done(struct scsi_cmnd *scmd) | |
4960 | { | |
4961 | struct pqi_scsi_dev *device; | |
4962 | ||
4963 | device = scmd->device->hostdata; | |
4964 | atomic_dec(&device->scsi_cmds_outstanding); | |
4965 | } | |
4966 | ||
6c223761 | 4967 | static int pqi_scsi_queue_command(struct Scsi_Host *shost, |
7d81d2b8 | 4968 | struct scsi_cmnd *scmd) |
6c223761 KB |
4969 | { |
4970 | int rc; | |
4971 | struct pqi_ctrl_info *ctrl_info; | |
4972 | struct pqi_scsi_dev *device; | |
061ef06a | 4973 | u16 hw_queue; |
6c223761 KB |
4974 | struct pqi_queue_group *queue_group; |
4975 | bool raid_bypassed; | |
4976 | ||
4977 | device = scmd->device->hostdata; | |
6c223761 KB |
4978 | ctrl_info = shost_to_hba(shost); |
4979 | ||
7561a7e4 KB |
4980 | atomic_inc(&device->scsi_cmds_outstanding); |
4981 | ||
6c223761 KB |
4982 | if (pqi_ctrl_offline(ctrl_info)) { |
4983 | set_host_byte(scmd, DID_NO_CONNECT); | |
4984 | pqi_scsi_done(scmd); | |
4985 | return 0; | |
4986 | } | |
4987 | ||
7561a7e4 KB |
4988 | pqi_ctrl_busy(ctrl_info); |
4989 | if (pqi_ctrl_blocked(ctrl_info) || pqi_device_in_reset(device)) { | |
4990 | rc = SCSI_MLQUEUE_HOST_BUSY; | |
4991 | goto out; | |
4992 | } | |
4993 | ||
7d81d2b8 KB |
4994 | /* |
4995 | * This is necessary because the SML doesn't zero out this field during | |
4996 | * error recovery. | |
4997 | */ | |
4998 | scmd->result = 0; | |
4999 | ||
061ef06a KB |
5000 | hw_queue = pqi_get_hw_queue(ctrl_info, scmd); |
5001 | queue_group = &ctrl_info->queue_groups[hw_queue]; | |
6c223761 KB |
5002 | |
5003 | if (pqi_is_logical_device(device)) { | |
5004 | raid_bypassed = false; | |
588a63fe | 5005 | if (device->raid_bypass_enabled && |
57292b58 | 5006 | !blk_rq_is_passthrough(scmd->request)) { |
6c223761 KB |
5007 | rc = pqi_raid_bypass_submit_scsi_cmd(ctrl_info, device, |
5008 | scmd, queue_group); | |
376fb880 KB |
5009 | if (rc == 0 || rc == SCSI_MLQUEUE_HOST_BUSY) |
5010 | raid_bypassed = true; | |
6c223761 KB |
5011 | } |
5012 | if (!raid_bypassed) | |
5013 | rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, | |
5014 | queue_group); | |
5015 | } else { | |
5016 | if (device->aio_enabled) | |
5017 | rc = pqi_aio_submit_scsi_cmd(ctrl_info, device, scmd, | |
5018 | queue_group); | |
5019 | else | |
5020 | rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, | |
5021 | queue_group); | |
5022 | } | |
5023 | ||
7561a7e4 KB |
5024 | out: |
5025 | pqi_ctrl_unbusy(ctrl_info); | |
5026 | if (rc) | |
5027 | atomic_dec(&device->scsi_cmds_outstanding); | |
5028 | ||
6c223761 KB |
5029 | return rc; |
5030 | } | |
5031 | ||
7561a7e4 KB |
5032 | static int pqi_wait_until_queued_io_drained(struct pqi_ctrl_info *ctrl_info, |
5033 | struct pqi_queue_group *queue_group) | |
5034 | { | |
5035 | unsigned int path; | |
5036 | unsigned long flags; | |
5037 | bool list_is_empty; | |
5038 | ||
5039 | for (path = 0; path < 2; path++) { | |
5040 | while (1) { | |
5041 | spin_lock_irqsave( | |
5042 | &queue_group->submit_lock[path], flags); | |
5043 | list_is_empty = | |
5044 | list_empty(&queue_group->request_list[path]); | |
5045 | spin_unlock_irqrestore( | |
5046 | &queue_group->submit_lock[path], flags); | |
5047 | if (list_is_empty) | |
5048 | break; | |
5049 | pqi_check_ctrl_health(ctrl_info); | |
5050 | if (pqi_ctrl_offline(ctrl_info)) | |
5051 | return -ENXIO; | |
5052 | usleep_range(1000, 2000); | |
5053 | } | |
5054 | } | |
5055 | ||
5056 | return 0; | |
5057 | } | |
5058 | ||
5059 | static int pqi_wait_until_inbound_queues_empty(struct pqi_ctrl_info *ctrl_info) | |
5060 | { | |
5061 | int rc; | |
5062 | unsigned int i; | |
5063 | unsigned int path; | |
5064 | struct pqi_queue_group *queue_group; | |
5065 | pqi_index_t iq_pi; | |
5066 | pqi_index_t iq_ci; | |
5067 | ||
5068 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
5069 | queue_group = &ctrl_info->queue_groups[i]; | |
5070 | ||
5071 | rc = pqi_wait_until_queued_io_drained(ctrl_info, queue_group); | |
5072 | if (rc) | |
5073 | return rc; | |
5074 | ||
5075 | for (path = 0; path < 2; path++) { | |
5076 | iq_pi = queue_group->iq_pi_copy[path]; | |
5077 | ||
5078 | while (1) { | |
5079 | iq_ci = *queue_group->iq_ci[path]; | |
5080 | if (iq_ci == iq_pi) | |
5081 | break; | |
5082 | pqi_check_ctrl_health(ctrl_info); | |
5083 | if (pqi_ctrl_offline(ctrl_info)) | |
5084 | return -ENXIO; | |
5085 | usleep_range(1000, 2000); | |
5086 | } | |
5087 | } | |
5088 | } | |
5089 | ||
5090 | return 0; | |
5091 | } | |
5092 | ||
5093 | static void pqi_fail_io_queued_for_device(struct pqi_ctrl_info *ctrl_info, | |
5094 | struct pqi_scsi_dev *device) | |
5095 | { | |
5096 | unsigned int i; | |
5097 | unsigned int path; | |
5098 | struct pqi_queue_group *queue_group; | |
5099 | unsigned long flags; | |
5100 | struct pqi_io_request *io_request; | |
5101 | struct pqi_io_request *next; | |
5102 | struct scsi_cmnd *scmd; | |
5103 | struct pqi_scsi_dev *scsi_device; | |
5104 | ||
5105 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
5106 | queue_group = &ctrl_info->queue_groups[i]; | |
5107 | ||
5108 | for (path = 0; path < 2; path++) { | |
5109 | spin_lock_irqsave( | |
5110 | &queue_group->submit_lock[path], flags); | |
5111 | ||
5112 | list_for_each_entry_safe(io_request, next, | |
5113 | &queue_group->request_list[path], | |
5114 | request_list_entry) { | |
5115 | scmd = io_request->scmd; | |
5116 | if (!scmd) | |
5117 | continue; | |
5118 | ||
5119 | scsi_device = scmd->device->hostdata; | |
5120 | if (scsi_device != device) | |
5121 | continue; | |
5122 | ||
5123 | list_del(&io_request->request_list_entry); | |
5124 | set_host_byte(scmd, DID_RESET); | |
5125 | pqi_scsi_done(scmd); | |
5126 | } | |
5127 | ||
5128 | spin_unlock_irqrestore( | |
5129 | &queue_group->submit_lock[path], flags); | |
5130 | } | |
5131 | } | |
5132 | } | |
5133 | ||
061ef06a KB |
5134 | static int pqi_device_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info, |
5135 | struct pqi_scsi_dev *device) | |
5136 | { | |
5137 | while (atomic_read(&device->scsi_cmds_outstanding)) { | |
5138 | pqi_check_ctrl_health(ctrl_info); | |
5139 | if (pqi_ctrl_offline(ctrl_info)) | |
5140 | return -ENXIO; | |
5141 | usleep_range(1000, 2000); | |
5142 | } | |
5143 | ||
5144 | return 0; | |
5145 | } | |
5146 | ||
5147 | static int pqi_ctrl_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info) | |
5148 | { | |
5149 | bool io_pending; | |
5150 | unsigned long flags; | |
5151 | struct pqi_scsi_dev *device; | |
5152 | ||
5153 | while (1) { | |
5154 | io_pending = false; | |
5155 | ||
5156 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
5157 | list_for_each_entry(device, &ctrl_info->scsi_device_list, | |
5158 | scsi_device_list_entry) { | |
5159 | if (atomic_read(&device->scsi_cmds_outstanding)) { | |
5160 | io_pending = true; | |
5161 | break; | |
5162 | } | |
5163 | } | |
5164 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, | |
5165 | flags); | |
5166 | ||
5167 | if (!io_pending) | |
5168 | break; | |
5169 | ||
5170 | pqi_check_ctrl_health(ctrl_info); | |
5171 | if (pqi_ctrl_offline(ctrl_info)) | |
5172 | return -ENXIO; | |
5173 | ||
5174 | usleep_range(1000, 2000); | |
5175 | } | |
5176 | ||
5177 | return 0; | |
5178 | } | |
5179 | ||
14bb215d KB |
5180 | static void pqi_lun_reset_complete(struct pqi_io_request *io_request, |
5181 | void *context) | |
6c223761 | 5182 | { |
14bb215d | 5183 | struct completion *waiting = context; |
6c223761 | 5184 | |
14bb215d KB |
5185 | complete(waiting); |
5186 | } | |
6c223761 | 5187 | |
14bb215d KB |
5188 | #define PQI_LUN_RESET_TIMEOUT_SECS 10 |
5189 | ||
5190 | static int pqi_wait_for_lun_reset_completion(struct pqi_ctrl_info *ctrl_info, | |
5191 | struct pqi_scsi_dev *device, struct completion *wait) | |
5192 | { | |
5193 | int rc; | |
14bb215d KB |
5194 | |
5195 | while (1) { | |
5196 | if (wait_for_completion_io_timeout(wait, | |
5197 | PQI_LUN_RESET_TIMEOUT_SECS * HZ)) { | |
5198 | rc = 0; | |
5199 | break; | |
6c223761 KB |
5200 | } |
5201 | ||
14bb215d KB |
5202 | pqi_check_ctrl_health(ctrl_info); |
5203 | if (pqi_ctrl_offline(ctrl_info)) { | |
4e8415e3 | 5204 | rc = -ENXIO; |
14bb215d KB |
5205 | break; |
5206 | } | |
6c223761 | 5207 | } |
6c223761 | 5208 | |
14bb215d | 5209 | return rc; |
6c223761 KB |
5210 | } |
5211 | ||
14bb215d | 5212 | static int pqi_lun_reset(struct pqi_ctrl_info *ctrl_info, |
6c223761 KB |
5213 | struct pqi_scsi_dev *device) |
5214 | { | |
5215 | int rc; | |
5216 | struct pqi_io_request *io_request; | |
5217 | DECLARE_COMPLETION_ONSTACK(wait); | |
5218 | struct pqi_task_management_request *request; | |
5219 | ||
6c223761 | 5220 | io_request = pqi_alloc_io_request(ctrl_info); |
14bb215d | 5221 | io_request->io_complete_callback = pqi_lun_reset_complete; |
6c223761 KB |
5222 | io_request->context = &wait; |
5223 | ||
5224 | request = io_request->iu; | |
5225 | memset(request, 0, sizeof(*request)); | |
5226 | ||
5227 | request->header.iu_type = PQI_REQUEST_IU_TASK_MANAGEMENT; | |
5228 | put_unaligned_le16(sizeof(*request) - PQI_REQUEST_HEADER_LENGTH, | |
5229 | &request->header.iu_length); | |
5230 | put_unaligned_le16(io_request->index, &request->request_id); | |
5231 | memcpy(request->lun_number, device->scsi3addr, | |
5232 | sizeof(request->lun_number)); | |
5233 | request->task_management_function = SOP_TASK_MANAGEMENT_LUN_RESET; | |
5234 | ||
5235 | pqi_start_io(ctrl_info, | |
5236 | &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH, | |
5237 | io_request); | |
5238 | ||
14bb215d KB |
5239 | rc = pqi_wait_for_lun_reset_completion(ctrl_info, device, &wait); |
5240 | if (rc == 0) | |
6c223761 | 5241 | rc = io_request->status; |
6c223761 KB |
5242 | |
5243 | pqi_free_io_request(io_request); | |
6c223761 KB |
5244 | |
5245 | return rc; | |
5246 | } | |
5247 | ||
5248 | /* Performs a reset at the LUN level. */ | |
5249 | ||
5250 | static int pqi_device_reset(struct pqi_ctrl_info *ctrl_info, | |
5251 | struct pqi_scsi_dev *device) | |
5252 | { | |
5253 | int rc; | |
5254 | ||
14bb215d | 5255 | rc = pqi_lun_reset(ctrl_info, device); |
061ef06a KB |
5256 | if (rc == 0) |
5257 | rc = pqi_device_wait_for_pending_io(ctrl_info, device); | |
6c223761 | 5258 | |
14bb215d | 5259 | return rc == 0 ? SUCCESS : FAILED; |
6c223761 KB |
5260 | } |
5261 | ||
5262 | static int pqi_eh_device_reset_handler(struct scsi_cmnd *scmd) | |
5263 | { | |
5264 | int rc; | |
7561a7e4 | 5265 | struct Scsi_Host *shost; |
6c223761 KB |
5266 | struct pqi_ctrl_info *ctrl_info; |
5267 | struct pqi_scsi_dev *device; | |
5268 | ||
7561a7e4 KB |
5269 | shost = scmd->device->host; |
5270 | ctrl_info = shost_to_hba(shost); | |
6c223761 KB |
5271 | device = scmd->device->hostdata; |
5272 | ||
5273 | dev_err(&ctrl_info->pci_dev->dev, | |
5274 | "resetting scsi %d:%d:%d:%d\n", | |
7561a7e4 | 5275 | shost->host_no, device->bus, device->target, device->lun); |
6c223761 | 5276 | |
7561a7e4 KB |
5277 | pqi_check_ctrl_health(ctrl_info); |
5278 | if (pqi_ctrl_offline(ctrl_info)) { | |
5279 | rc = FAILED; | |
5280 | goto out; | |
5281 | } | |
6c223761 | 5282 | |
7561a7e4 KB |
5283 | mutex_lock(&ctrl_info->lun_reset_mutex); |
5284 | ||
5285 | pqi_ctrl_block_requests(ctrl_info); | |
5286 | pqi_ctrl_wait_until_quiesced(ctrl_info); | |
5287 | pqi_fail_io_queued_for_device(ctrl_info, device); | |
5288 | rc = pqi_wait_until_inbound_queues_empty(ctrl_info); | |
5289 | pqi_device_reset_start(device); | |
5290 | pqi_ctrl_unblock_requests(ctrl_info); | |
5291 | ||
5292 | if (rc) | |
5293 | rc = FAILED; | |
5294 | else | |
5295 | rc = pqi_device_reset(ctrl_info, device); | |
5296 | ||
5297 | pqi_device_reset_done(device); | |
5298 | ||
5299 | mutex_unlock(&ctrl_info->lun_reset_mutex); | |
5300 | ||
5301 | out: | |
6c223761 KB |
5302 | dev_err(&ctrl_info->pci_dev->dev, |
5303 | "reset of scsi %d:%d:%d:%d: %s\n", | |
7561a7e4 | 5304 | shost->host_no, device->bus, device->target, device->lun, |
6c223761 KB |
5305 | rc == SUCCESS ? "SUCCESS" : "FAILED"); |
5306 | ||
5307 | return rc; | |
5308 | } | |
5309 | ||
5310 | static int pqi_slave_alloc(struct scsi_device *sdev) | |
5311 | { | |
5312 | struct pqi_scsi_dev *device; | |
5313 | unsigned long flags; | |
5314 | struct pqi_ctrl_info *ctrl_info; | |
5315 | struct scsi_target *starget; | |
5316 | struct sas_rphy *rphy; | |
5317 | ||
5318 | ctrl_info = shost_to_hba(sdev->host); | |
5319 | ||
5320 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
5321 | ||
5322 | if (sdev_channel(sdev) == PQI_PHYSICAL_DEVICE_BUS) { | |
5323 | starget = scsi_target(sdev); | |
5324 | rphy = target_to_rphy(starget); | |
5325 | device = pqi_find_device_by_sas_rphy(ctrl_info, rphy); | |
5326 | if (device) { | |
5327 | device->target = sdev_id(sdev); | |
5328 | device->lun = sdev->lun; | |
5329 | device->target_lun_valid = true; | |
5330 | } | |
5331 | } else { | |
5332 | device = pqi_find_scsi_dev(ctrl_info, sdev_channel(sdev), | |
5333 | sdev_id(sdev), sdev->lun); | |
5334 | } | |
5335 | ||
94086f5b | 5336 | if (device) { |
6c223761 KB |
5337 | sdev->hostdata = device; |
5338 | device->sdev = sdev; | |
5339 | if (device->queue_depth) { | |
5340 | device->advertised_queue_depth = device->queue_depth; | |
5341 | scsi_change_queue_depth(sdev, | |
5342 | device->advertised_queue_depth); | |
5343 | } | |
5344 | } | |
5345 | ||
5346 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); | |
5347 | ||
5348 | return 0; | |
5349 | } | |
5350 | ||
52198226 CH |
5351 | static int pqi_map_queues(struct Scsi_Host *shost) |
5352 | { | |
5353 | struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); | |
5354 | ||
5355 | return blk_mq_pci_map_queues(&shost->tag_set, ctrl_info->pci_dev); | |
5356 | } | |
5357 | ||
6c223761 KB |
5358 | static int pqi_getpciinfo_ioctl(struct pqi_ctrl_info *ctrl_info, |
5359 | void __user *arg) | |
5360 | { | |
5361 | struct pci_dev *pci_dev; | |
5362 | u32 subsystem_vendor; | |
5363 | u32 subsystem_device; | |
5364 | cciss_pci_info_struct pciinfo; | |
5365 | ||
5366 | if (!arg) | |
5367 | return -EINVAL; | |
5368 | ||
5369 | pci_dev = ctrl_info->pci_dev; | |
5370 | ||
5371 | pciinfo.domain = pci_domain_nr(pci_dev->bus); | |
5372 | pciinfo.bus = pci_dev->bus->number; | |
5373 | pciinfo.dev_fn = pci_dev->devfn; | |
5374 | subsystem_vendor = pci_dev->subsystem_vendor; | |
5375 | subsystem_device = pci_dev->subsystem_device; | |
5376 | pciinfo.board_id = ((subsystem_device << 16) & 0xffff0000) | | |
5377 | subsystem_vendor; | |
5378 | ||
5379 | if (copy_to_user(arg, &pciinfo, sizeof(pciinfo))) | |
5380 | return -EFAULT; | |
5381 | ||
5382 | return 0; | |
5383 | } | |
5384 | ||
5385 | static int pqi_getdrivver_ioctl(void __user *arg) | |
5386 | { | |
5387 | u32 version; | |
5388 | ||
5389 | if (!arg) | |
5390 | return -EINVAL; | |
5391 | ||
5392 | version = (DRIVER_MAJOR << 28) | (DRIVER_MINOR << 24) | | |
5393 | (DRIVER_RELEASE << 16) | DRIVER_REVISION; | |
5394 | ||
5395 | if (copy_to_user(arg, &version, sizeof(version))) | |
5396 | return -EFAULT; | |
5397 | ||
5398 | return 0; | |
5399 | } | |
5400 | ||
5401 | struct ciss_error_info { | |
5402 | u8 scsi_status; | |
5403 | int command_status; | |
5404 | size_t sense_data_length; | |
5405 | }; | |
5406 | ||
5407 | static void pqi_error_info_to_ciss(struct pqi_raid_error_info *pqi_error_info, | |
5408 | struct ciss_error_info *ciss_error_info) | |
5409 | { | |
5410 | int ciss_cmd_status; | |
5411 | size_t sense_data_length; | |
5412 | ||
5413 | switch (pqi_error_info->data_out_result) { | |
5414 | case PQI_DATA_IN_OUT_GOOD: | |
5415 | ciss_cmd_status = CISS_CMD_STATUS_SUCCESS; | |
5416 | break; | |
5417 | case PQI_DATA_IN_OUT_UNDERFLOW: | |
5418 | ciss_cmd_status = CISS_CMD_STATUS_DATA_UNDERRUN; | |
5419 | break; | |
5420 | case PQI_DATA_IN_OUT_BUFFER_OVERFLOW: | |
5421 | ciss_cmd_status = CISS_CMD_STATUS_DATA_OVERRUN; | |
5422 | break; | |
5423 | case PQI_DATA_IN_OUT_PROTOCOL_ERROR: | |
5424 | case PQI_DATA_IN_OUT_BUFFER_ERROR: | |
5425 | case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA: | |
5426 | case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE: | |
5427 | case PQI_DATA_IN_OUT_ERROR: | |
5428 | ciss_cmd_status = CISS_CMD_STATUS_PROTOCOL_ERROR; | |
5429 | break; | |
5430 | case PQI_DATA_IN_OUT_HARDWARE_ERROR: | |
5431 | case PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR: | |
5432 | case PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT: | |
5433 | case PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED: | |
5434 | case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED: | |
5435 | case PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED: | |
5436 | case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST: | |
5437 | case PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION: | |
5438 | case PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED: | |
5439 | case PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ: | |
5440 | ciss_cmd_status = CISS_CMD_STATUS_HARDWARE_ERROR; | |
5441 | break; | |
5442 | case PQI_DATA_IN_OUT_UNSOLICITED_ABORT: | |
5443 | ciss_cmd_status = CISS_CMD_STATUS_UNSOLICITED_ABORT; | |
5444 | break; | |
5445 | case PQI_DATA_IN_OUT_ABORTED: | |
5446 | ciss_cmd_status = CISS_CMD_STATUS_ABORTED; | |
5447 | break; | |
5448 | case PQI_DATA_IN_OUT_TIMEOUT: | |
5449 | ciss_cmd_status = CISS_CMD_STATUS_TIMEOUT; | |
5450 | break; | |
5451 | default: | |
5452 | ciss_cmd_status = CISS_CMD_STATUS_TARGET_STATUS; | |
5453 | break; | |
5454 | } | |
5455 | ||
5456 | sense_data_length = | |
5457 | get_unaligned_le16(&pqi_error_info->sense_data_length); | |
5458 | if (sense_data_length == 0) | |
5459 | sense_data_length = | |
5460 | get_unaligned_le16(&pqi_error_info->response_data_length); | |
5461 | if (sense_data_length) | |
5462 | if (sense_data_length > sizeof(pqi_error_info->data)) | |
5463 | sense_data_length = sizeof(pqi_error_info->data); | |
5464 | ||
5465 | ciss_error_info->scsi_status = pqi_error_info->status; | |
5466 | ciss_error_info->command_status = ciss_cmd_status; | |
5467 | ciss_error_info->sense_data_length = sense_data_length; | |
5468 | } | |
5469 | ||
5470 | static int pqi_passthru_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg) | |
5471 | { | |
5472 | int rc; | |
5473 | char *kernel_buffer = NULL; | |
5474 | u16 iu_length; | |
5475 | size_t sense_data_length; | |
5476 | IOCTL_Command_struct iocommand; | |
5477 | struct pqi_raid_path_request request; | |
5478 | struct pqi_raid_error_info pqi_error_info; | |
5479 | struct ciss_error_info ciss_error_info; | |
5480 | ||
5481 | if (pqi_ctrl_offline(ctrl_info)) | |
5482 | return -ENXIO; | |
5483 | if (!arg) | |
5484 | return -EINVAL; | |
5485 | if (!capable(CAP_SYS_RAWIO)) | |
5486 | return -EPERM; | |
5487 | if (copy_from_user(&iocommand, arg, sizeof(iocommand))) | |
5488 | return -EFAULT; | |
5489 | if (iocommand.buf_size < 1 && | |
5490 | iocommand.Request.Type.Direction != XFER_NONE) | |
5491 | return -EINVAL; | |
5492 | if (iocommand.Request.CDBLen > sizeof(request.cdb)) | |
5493 | return -EINVAL; | |
5494 | if (iocommand.Request.Type.Type != TYPE_CMD) | |
5495 | return -EINVAL; | |
5496 | ||
5497 | switch (iocommand.Request.Type.Direction) { | |
5498 | case XFER_NONE: | |
5499 | case XFER_WRITE: | |
5500 | case XFER_READ: | |
5501 | break; | |
5502 | default: | |
5503 | return -EINVAL; | |
5504 | } | |
5505 | ||
5506 | if (iocommand.buf_size > 0) { | |
5507 | kernel_buffer = kmalloc(iocommand.buf_size, GFP_KERNEL); | |
5508 | if (!kernel_buffer) | |
5509 | return -ENOMEM; | |
5510 | if (iocommand.Request.Type.Direction & XFER_WRITE) { | |
5511 | if (copy_from_user(kernel_buffer, iocommand.buf, | |
5512 | iocommand.buf_size)) { | |
5513 | rc = -EFAULT; | |
5514 | goto out; | |
5515 | } | |
5516 | } else { | |
5517 | memset(kernel_buffer, 0, iocommand.buf_size); | |
5518 | } | |
5519 | } | |
5520 | ||
5521 | memset(&request, 0, sizeof(request)); | |
5522 | ||
5523 | request.header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO; | |
5524 | iu_length = offsetof(struct pqi_raid_path_request, sg_descriptors) - | |
5525 | PQI_REQUEST_HEADER_LENGTH; | |
5526 | memcpy(request.lun_number, iocommand.LUN_info.LunAddrBytes, | |
5527 | sizeof(request.lun_number)); | |
5528 | memcpy(request.cdb, iocommand.Request.CDB, iocommand.Request.CDBLen); | |
5529 | request.additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0; | |
5530 | ||
5531 | switch (iocommand.Request.Type.Direction) { | |
5532 | case XFER_NONE: | |
5533 | request.data_direction = SOP_NO_DIRECTION_FLAG; | |
5534 | break; | |
5535 | case XFER_WRITE: | |
5536 | request.data_direction = SOP_WRITE_FLAG; | |
5537 | break; | |
5538 | case XFER_READ: | |
5539 | request.data_direction = SOP_READ_FLAG; | |
5540 | break; | |
5541 | } | |
5542 | ||
5543 | request.task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; | |
5544 | ||
5545 | if (iocommand.buf_size > 0) { | |
5546 | put_unaligned_le32(iocommand.buf_size, &request.buffer_length); | |
5547 | ||
5548 | rc = pqi_map_single(ctrl_info->pci_dev, | |
5549 | &request.sg_descriptors[0], kernel_buffer, | |
5550 | iocommand.buf_size, PCI_DMA_BIDIRECTIONAL); | |
5551 | if (rc) | |
5552 | goto out; | |
5553 | ||
5554 | iu_length += sizeof(request.sg_descriptors[0]); | |
5555 | } | |
5556 | ||
5557 | put_unaligned_le16(iu_length, &request.header.iu_length); | |
5558 | ||
5559 | rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, | |
5560 | PQI_SYNC_FLAGS_INTERRUPTABLE, &pqi_error_info, NO_TIMEOUT); | |
5561 | ||
5562 | if (iocommand.buf_size > 0) | |
5563 | pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, | |
5564 | PCI_DMA_BIDIRECTIONAL); | |
5565 | ||
5566 | memset(&iocommand.error_info, 0, sizeof(iocommand.error_info)); | |
5567 | ||
5568 | if (rc == 0) { | |
5569 | pqi_error_info_to_ciss(&pqi_error_info, &ciss_error_info); | |
5570 | iocommand.error_info.ScsiStatus = ciss_error_info.scsi_status; | |
5571 | iocommand.error_info.CommandStatus = | |
5572 | ciss_error_info.command_status; | |
5573 | sense_data_length = ciss_error_info.sense_data_length; | |
5574 | if (sense_data_length) { | |
5575 | if (sense_data_length > | |
5576 | sizeof(iocommand.error_info.SenseInfo)) | |
5577 | sense_data_length = | |
5578 | sizeof(iocommand.error_info.SenseInfo); | |
5579 | memcpy(iocommand.error_info.SenseInfo, | |
5580 | pqi_error_info.data, sense_data_length); | |
5581 | iocommand.error_info.SenseLen = sense_data_length; | |
5582 | } | |
5583 | } | |
5584 | ||
5585 | if (copy_to_user(arg, &iocommand, sizeof(iocommand))) { | |
5586 | rc = -EFAULT; | |
5587 | goto out; | |
5588 | } | |
5589 | ||
5590 | if (rc == 0 && iocommand.buf_size > 0 && | |
5591 | (iocommand.Request.Type.Direction & XFER_READ)) { | |
5592 | if (copy_to_user(iocommand.buf, kernel_buffer, | |
5593 | iocommand.buf_size)) { | |
5594 | rc = -EFAULT; | |
5595 | } | |
5596 | } | |
5597 | ||
5598 | out: | |
5599 | kfree(kernel_buffer); | |
5600 | ||
5601 | return rc; | |
5602 | } | |
5603 | ||
5604 | static int pqi_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) | |
5605 | { | |
5606 | int rc; | |
5607 | struct pqi_ctrl_info *ctrl_info; | |
5608 | ||
5609 | ctrl_info = shost_to_hba(sdev->host); | |
5610 | ||
5611 | switch (cmd) { | |
5612 | case CCISS_DEREGDISK: | |
5613 | case CCISS_REGNEWDISK: | |
5614 | case CCISS_REGNEWD: | |
5615 | rc = pqi_scan_scsi_devices(ctrl_info); | |
5616 | break; | |
5617 | case CCISS_GETPCIINFO: | |
5618 | rc = pqi_getpciinfo_ioctl(ctrl_info, arg); | |
5619 | break; | |
5620 | case CCISS_GETDRIVVER: | |
5621 | rc = pqi_getdrivver_ioctl(arg); | |
5622 | break; | |
5623 | case CCISS_PASSTHRU: | |
5624 | rc = pqi_passthru_ioctl(ctrl_info, arg); | |
5625 | break; | |
5626 | default: | |
5627 | rc = -EINVAL; | |
5628 | break; | |
5629 | } | |
5630 | ||
5631 | return rc; | |
5632 | } | |
5633 | ||
5634 | static ssize_t pqi_version_show(struct device *dev, | |
5635 | struct device_attribute *attr, char *buffer) | |
5636 | { | |
5637 | ssize_t count = 0; | |
5638 | struct Scsi_Host *shost; | |
5639 | struct pqi_ctrl_info *ctrl_info; | |
5640 | ||
5641 | shost = class_to_shost(dev); | |
5642 | ctrl_info = shost_to_hba(shost); | |
5643 | ||
5644 | count += snprintf(buffer + count, PAGE_SIZE - count, | |
5645 | " driver: %s\n", DRIVER_VERSION BUILD_TIMESTAMP); | |
5646 | ||
5647 | count += snprintf(buffer + count, PAGE_SIZE - count, | |
5648 | "firmware: %s\n", ctrl_info->firmware_version); | |
5649 | ||
5650 | return count; | |
5651 | } | |
5652 | ||
5653 | static ssize_t pqi_host_rescan_store(struct device *dev, | |
5654 | struct device_attribute *attr, const char *buffer, size_t count) | |
5655 | { | |
5656 | struct Scsi_Host *shost = class_to_shost(dev); | |
5657 | ||
5658 | pqi_scan_start(shost); | |
5659 | ||
5660 | return count; | |
5661 | } | |
5662 | ||
3c50976f KB |
5663 | static ssize_t pqi_lockup_action_show(struct device *dev, |
5664 | struct device_attribute *attr, char *buffer) | |
5665 | { | |
5666 | int count = 0; | |
5667 | unsigned int i; | |
5668 | ||
5669 | for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) { | |
5670 | if (pqi_lockup_actions[i].action == pqi_lockup_action) | |
5671 | count += snprintf(buffer + count, PAGE_SIZE - count, | |
5672 | "[%s] ", pqi_lockup_actions[i].name); | |
5673 | else | |
5674 | count += snprintf(buffer + count, PAGE_SIZE - count, | |
5675 | "%s ", pqi_lockup_actions[i].name); | |
5676 | } | |
5677 | ||
5678 | count += snprintf(buffer + count, PAGE_SIZE - count, "\n"); | |
5679 | ||
5680 | return count; | |
5681 | } | |
5682 | ||
5683 | static ssize_t pqi_lockup_action_store(struct device *dev, | |
5684 | struct device_attribute *attr, const char *buffer, size_t count) | |
5685 | { | |
5686 | unsigned int i; | |
5687 | char *action_name; | |
5688 | char action_name_buffer[32]; | |
5689 | ||
5690 | strlcpy(action_name_buffer, buffer, sizeof(action_name_buffer)); | |
5691 | action_name = strstrip(action_name_buffer); | |
5692 | ||
5693 | for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) { | |
5694 | if (strcmp(action_name, pqi_lockup_actions[i].name) == 0) { | |
5695 | pqi_lockup_action = pqi_lockup_actions[i].action; | |
5696 | return count; | |
5697 | } | |
5698 | } | |
5699 | ||
5700 | return -EINVAL; | |
5701 | } | |
5702 | ||
cbe0c7b1 KB |
5703 | static DEVICE_ATTR(version, 0444, pqi_version_show, NULL); |
5704 | static DEVICE_ATTR(rescan, 0200, NULL, pqi_host_rescan_store); | |
3c50976f KB |
5705 | static DEVICE_ATTR(lockup_action, 0644, |
5706 | pqi_lockup_action_show, pqi_lockup_action_store); | |
6c223761 KB |
5707 | |
5708 | static struct device_attribute *pqi_shost_attrs[] = { | |
5709 | &dev_attr_version, | |
5710 | &dev_attr_rescan, | |
3c50976f | 5711 | &dev_attr_lockup_action, |
6c223761 KB |
5712 | NULL |
5713 | }; | |
5714 | ||
5715 | static ssize_t pqi_sas_address_show(struct device *dev, | |
5716 | struct device_attribute *attr, char *buffer) | |
5717 | { | |
5718 | struct pqi_ctrl_info *ctrl_info; | |
5719 | struct scsi_device *sdev; | |
5720 | struct pqi_scsi_dev *device; | |
5721 | unsigned long flags; | |
5722 | u64 sas_address; | |
5723 | ||
5724 | sdev = to_scsi_device(dev); | |
5725 | ctrl_info = shost_to_hba(sdev->host); | |
5726 | ||
5727 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
5728 | ||
5729 | device = sdev->hostdata; | |
5730 | if (pqi_is_logical_device(device)) { | |
5731 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, | |
5732 | flags); | |
5733 | return -ENODEV; | |
5734 | } | |
5735 | sas_address = device->sas_address; | |
5736 | ||
5737 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); | |
5738 | ||
5739 | return snprintf(buffer, PAGE_SIZE, "0x%016llx\n", sas_address); | |
5740 | } | |
5741 | ||
5742 | static ssize_t pqi_ssd_smart_path_enabled_show(struct device *dev, | |
5743 | struct device_attribute *attr, char *buffer) | |
5744 | { | |
5745 | struct pqi_ctrl_info *ctrl_info; | |
5746 | struct scsi_device *sdev; | |
5747 | struct pqi_scsi_dev *device; | |
5748 | unsigned long flags; | |
5749 | ||
5750 | sdev = to_scsi_device(dev); | |
5751 | ctrl_info = shost_to_hba(sdev->host); | |
5752 | ||
5753 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
5754 | ||
5755 | device = sdev->hostdata; | |
588a63fe | 5756 | buffer[0] = device->raid_bypass_enabled ? '1' : '0'; |
6c223761 KB |
5757 | buffer[1] = '\n'; |
5758 | buffer[2] = '\0'; | |
5759 | ||
5760 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); | |
5761 | ||
5762 | return 2; | |
5763 | } | |
5764 | ||
a9f93392 KB |
5765 | static ssize_t pqi_raid_level_show(struct device *dev, |
5766 | struct device_attribute *attr, char *buffer) | |
5767 | { | |
5768 | struct pqi_ctrl_info *ctrl_info; | |
5769 | struct scsi_device *sdev; | |
5770 | struct pqi_scsi_dev *device; | |
5771 | unsigned long flags; | |
5772 | char *raid_level; | |
5773 | ||
5774 | sdev = to_scsi_device(dev); | |
5775 | ctrl_info = shost_to_hba(sdev->host); | |
5776 | ||
5777 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
5778 | ||
5779 | device = sdev->hostdata; | |
5780 | ||
5781 | if (pqi_is_logical_device(device)) | |
5782 | raid_level = pqi_raid_level_to_string(device->raid_level); | |
5783 | else | |
5784 | raid_level = "N/A"; | |
5785 | ||
5786 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); | |
5787 | ||
5788 | return snprintf(buffer, PAGE_SIZE, "%s\n", raid_level); | |
5789 | } | |
5790 | ||
cbe0c7b1 KB |
5791 | static DEVICE_ATTR(sas_address, 0444, pqi_sas_address_show, NULL); |
5792 | static DEVICE_ATTR(ssd_smart_path_enabled, 0444, | |
6c223761 | 5793 | pqi_ssd_smart_path_enabled_show, NULL); |
a9f93392 | 5794 | static DEVICE_ATTR(raid_level, 0444, pqi_raid_level_show, NULL); |
6c223761 KB |
5795 | |
5796 | static struct device_attribute *pqi_sdev_attrs[] = { | |
5797 | &dev_attr_sas_address, | |
5798 | &dev_attr_ssd_smart_path_enabled, | |
a9f93392 | 5799 | &dev_attr_raid_level, |
6c223761 KB |
5800 | NULL |
5801 | }; | |
5802 | ||
5803 | static struct scsi_host_template pqi_driver_template = { | |
5804 | .module = THIS_MODULE, | |
5805 | .name = DRIVER_NAME_SHORT, | |
5806 | .proc_name = DRIVER_NAME_SHORT, | |
5807 | .queuecommand = pqi_scsi_queue_command, | |
5808 | .scan_start = pqi_scan_start, | |
5809 | .scan_finished = pqi_scan_finished, | |
5810 | .this_id = -1, | |
5811 | .use_clustering = ENABLE_CLUSTERING, | |
5812 | .eh_device_reset_handler = pqi_eh_device_reset_handler, | |
5813 | .ioctl = pqi_ioctl, | |
5814 | .slave_alloc = pqi_slave_alloc, | |
52198226 | 5815 | .map_queues = pqi_map_queues, |
6c223761 KB |
5816 | .sdev_attrs = pqi_sdev_attrs, |
5817 | .shost_attrs = pqi_shost_attrs, | |
5818 | }; | |
5819 | ||
5820 | static int pqi_register_scsi(struct pqi_ctrl_info *ctrl_info) | |
5821 | { | |
5822 | int rc; | |
5823 | struct Scsi_Host *shost; | |
5824 | ||
5825 | shost = scsi_host_alloc(&pqi_driver_template, sizeof(ctrl_info)); | |
5826 | if (!shost) { | |
5827 | dev_err(&ctrl_info->pci_dev->dev, | |
5828 | "scsi_host_alloc failed for controller %u\n", | |
5829 | ctrl_info->ctrl_id); | |
5830 | return -ENOMEM; | |
5831 | } | |
5832 | ||
5833 | shost->io_port = 0; | |
5834 | shost->n_io_port = 0; | |
5835 | shost->this_id = -1; | |
5836 | shost->max_channel = PQI_MAX_BUS; | |
5837 | shost->max_cmd_len = MAX_COMMAND_SIZE; | |
5838 | shost->max_lun = ~0; | |
5839 | shost->max_id = ~0; | |
5840 | shost->max_sectors = ctrl_info->max_sectors; | |
5841 | shost->can_queue = ctrl_info->scsi_ml_can_queue; | |
5842 | shost->cmd_per_lun = shost->can_queue; | |
5843 | shost->sg_tablesize = ctrl_info->sg_tablesize; | |
5844 | shost->transportt = pqi_sas_transport_template; | |
52198226 | 5845 | shost->irq = pci_irq_vector(ctrl_info->pci_dev, 0); |
6c223761 KB |
5846 | shost->unique_id = shost->irq; |
5847 | shost->nr_hw_queues = ctrl_info->num_queue_groups; | |
5848 | shost->hostdata[0] = (unsigned long)ctrl_info; | |
5849 | ||
5850 | rc = scsi_add_host(shost, &ctrl_info->pci_dev->dev); | |
5851 | if (rc) { | |
5852 | dev_err(&ctrl_info->pci_dev->dev, | |
5853 | "scsi_add_host failed for controller %u\n", | |
5854 | ctrl_info->ctrl_id); | |
5855 | goto free_host; | |
5856 | } | |
5857 | ||
5858 | rc = pqi_add_sas_host(shost, ctrl_info); | |
5859 | if (rc) { | |
5860 | dev_err(&ctrl_info->pci_dev->dev, | |
5861 | "add SAS host failed for controller %u\n", | |
5862 | ctrl_info->ctrl_id); | |
5863 | goto remove_host; | |
5864 | } | |
5865 | ||
5866 | ctrl_info->scsi_host = shost; | |
5867 | ||
5868 | return 0; | |
5869 | ||
5870 | remove_host: | |
5871 | scsi_remove_host(shost); | |
5872 | free_host: | |
5873 | scsi_host_put(shost); | |
5874 | ||
5875 | return rc; | |
5876 | } | |
5877 | ||
5878 | static void pqi_unregister_scsi(struct pqi_ctrl_info *ctrl_info) | |
5879 | { | |
5880 | struct Scsi_Host *shost; | |
5881 | ||
5882 | pqi_delete_sas_host(ctrl_info); | |
5883 | ||
5884 | shost = ctrl_info->scsi_host; | |
5885 | if (!shost) | |
5886 | return; | |
5887 | ||
5888 | scsi_remove_host(shost); | |
5889 | scsi_host_put(shost); | |
5890 | } | |
5891 | ||
5892 | #define PQI_RESET_ACTION_RESET 0x1 | |
5893 | ||
5894 | #define PQI_RESET_TYPE_NO_RESET 0x0 | |
5895 | #define PQI_RESET_TYPE_SOFT_RESET 0x1 | |
5896 | #define PQI_RESET_TYPE_FIRM_RESET 0x2 | |
5897 | #define PQI_RESET_TYPE_HARD_RESET 0x3 | |
5898 | ||
5899 | static int pqi_reset(struct pqi_ctrl_info *ctrl_info) | |
5900 | { | |
5901 | int rc; | |
5902 | u32 reset_params; | |
5903 | ||
5904 | reset_params = (PQI_RESET_ACTION_RESET << 5) | | |
5905 | PQI_RESET_TYPE_HARD_RESET; | |
5906 | ||
5907 | writel(reset_params, | |
5908 | &ctrl_info->pqi_registers->device_reset); | |
5909 | ||
5910 | rc = pqi_wait_for_pqi_mode_ready(ctrl_info); | |
5911 | if (rc) | |
5912 | dev_err(&ctrl_info->pci_dev->dev, | |
5913 | "PQI reset failed\n"); | |
5914 | ||
5915 | return rc; | |
5916 | } | |
5917 | ||
5918 | static int pqi_get_ctrl_firmware_version(struct pqi_ctrl_info *ctrl_info) | |
5919 | { | |
5920 | int rc; | |
5921 | struct bmic_identify_controller *identify; | |
5922 | ||
5923 | identify = kmalloc(sizeof(*identify), GFP_KERNEL); | |
5924 | if (!identify) | |
5925 | return -ENOMEM; | |
5926 | ||
5927 | rc = pqi_identify_controller(ctrl_info, identify); | |
5928 | if (rc) | |
5929 | goto out; | |
5930 | ||
5931 | memcpy(ctrl_info->firmware_version, identify->firmware_version, | |
5932 | sizeof(identify->firmware_version)); | |
5933 | ctrl_info->firmware_version[sizeof(identify->firmware_version)] = '\0'; | |
5934 | snprintf(ctrl_info->firmware_version + | |
5935 | strlen(ctrl_info->firmware_version), | |
5936 | sizeof(ctrl_info->firmware_version), | |
5937 | "-%u", get_unaligned_le16(&identify->firmware_build_number)); | |
5938 | ||
5939 | out: | |
5940 | kfree(identify); | |
5941 | ||
5942 | return rc; | |
5943 | } | |
5944 | ||
98f87667 KB |
5945 | static int pqi_process_config_table(struct pqi_ctrl_info *ctrl_info) |
5946 | { | |
5947 | u32 table_length; | |
5948 | u32 section_offset; | |
5949 | void __iomem *table_iomem_addr; | |
5950 | struct pqi_config_table *config_table; | |
5951 | struct pqi_config_table_section_header *section; | |
5952 | ||
5953 | table_length = ctrl_info->config_table_length; | |
5954 | ||
5955 | config_table = kmalloc(table_length, GFP_KERNEL); | |
5956 | if (!config_table) { | |
5957 | dev_err(&ctrl_info->pci_dev->dev, | |
d87d5474 | 5958 | "failed to allocate memory for PQI configuration table\n"); |
98f87667 KB |
5959 | return -ENOMEM; |
5960 | } | |
5961 | ||
5962 | /* | |
5963 | * Copy the config table contents from I/O memory space into the | |
5964 | * temporary buffer. | |
5965 | */ | |
5966 | table_iomem_addr = ctrl_info->iomem_base + | |
5967 | ctrl_info->config_table_offset; | |
5968 | memcpy_fromio(config_table, table_iomem_addr, table_length); | |
5969 | ||
5970 | section_offset = | |
5971 | get_unaligned_le32(&config_table->first_section_offset); | |
5972 | ||
5973 | while (section_offset) { | |
5974 | section = (void *)config_table + section_offset; | |
5975 | ||
5976 | switch (get_unaligned_le16(§ion->section_id)) { | |
5977 | case PQI_CONFIG_TABLE_SECTION_HEARTBEAT: | |
5a259e32 KB |
5978 | if (pqi_disable_heartbeat) |
5979 | dev_warn(&ctrl_info->pci_dev->dev, | |
5980 | "heartbeat disabled by module parameter\n"); | |
5981 | else | |
5982 | ctrl_info->heartbeat_counter = | |
5983 | table_iomem_addr + | |
5984 | section_offset + | |
5985 | offsetof( | |
5986 | struct pqi_config_table_heartbeat, | |
5987 | heartbeat_counter); | |
98f87667 KB |
5988 | break; |
5989 | } | |
5990 | ||
5991 | section_offset = | |
5992 | get_unaligned_le16(§ion->next_section_offset); | |
5993 | } | |
5994 | ||
5995 | kfree(config_table); | |
5996 | ||
5997 | return 0; | |
5998 | } | |
5999 | ||
162d7753 KB |
6000 | /* Switches the controller from PQI mode back into SIS mode. */ |
6001 | ||
6002 | static int pqi_revert_to_sis_mode(struct pqi_ctrl_info *ctrl_info) | |
6003 | { | |
6004 | int rc; | |
6005 | ||
061ef06a | 6006 | pqi_change_irq_mode(ctrl_info, IRQ_MODE_NONE); |
162d7753 KB |
6007 | rc = pqi_reset(ctrl_info); |
6008 | if (rc) | |
6009 | return rc; | |
6010 | sis_reenable_sis_mode(ctrl_info); | |
6011 | pqi_save_ctrl_mode(ctrl_info, SIS_MODE); | |
6012 | ||
6013 | return 0; | |
6014 | } | |
6015 | ||
6016 | /* | |
6017 | * If the controller isn't already in SIS mode, this function forces it into | |
6018 | * SIS mode. | |
6019 | */ | |
6020 | ||
6021 | static int pqi_force_sis_mode(struct pqi_ctrl_info *ctrl_info) | |
ff6abb73 KB |
6022 | { |
6023 | if (!sis_is_firmware_running(ctrl_info)) | |
6024 | return -ENXIO; | |
6025 | ||
162d7753 KB |
6026 | if (pqi_get_ctrl_mode(ctrl_info) == SIS_MODE) |
6027 | return 0; | |
6028 | ||
6029 | if (sis_is_kernel_up(ctrl_info)) { | |
6030 | pqi_save_ctrl_mode(ctrl_info, SIS_MODE); | |
6031 | return 0; | |
ff6abb73 KB |
6032 | } |
6033 | ||
162d7753 | 6034 | return pqi_revert_to_sis_mode(ctrl_info); |
ff6abb73 KB |
6035 | } |
6036 | ||
6c223761 KB |
6037 | static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info) |
6038 | { | |
6039 | int rc; | |
6040 | ||
162d7753 KB |
6041 | rc = pqi_force_sis_mode(ctrl_info); |
6042 | if (rc) | |
6043 | return rc; | |
6c223761 KB |
6044 | |
6045 | /* | |
6046 | * Wait until the controller is ready to start accepting SIS | |
6047 | * commands. | |
6048 | */ | |
6049 | rc = sis_wait_for_ctrl_ready(ctrl_info); | |
8845fdfa | 6050 | if (rc) |
6c223761 | 6051 | return rc; |
6c223761 KB |
6052 | |
6053 | /* | |
6054 | * Get the controller properties. This allows us to determine | |
6055 | * whether or not it supports PQI mode. | |
6056 | */ | |
6057 | rc = sis_get_ctrl_properties(ctrl_info); | |
6058 | if (rc) { | |
6059 | dev_err(&ctrl_info->pci_dev->dev, | |
6060 | "error obtaining controller properties\n"); | |
6061 | return rc; | |
6062 | } | |
6063 | ||
6064 | rc = sis_get_pqi_capabilities(ctrl_info); | |
6065 | if (rc) { | |
6066 | dev_err(&ctrl_info->pci_dev->dev, | |
6067 | "error obtaining controller capabilities\n"); | |
6068 | return rc; | |
6069 | } | |
6070 | ||
d727a776 KB |
6071 | if (reset_devices) { |
6072 | if (ctrl_info->max_outstanding_requests > | |
6073 | PQI_MAX_OUTSTANDING_REQUESTS_KDUMP) | |
6074 | ctrl_info->max_outstanding_requests = | |
6075 | PQI_MAX_OUTSTANDING_REQUESTS_KDUMP; | |
6076 | } else { | |
6077 | if (ctrl_info->max_outstanding_requests > | |
6078 | PQI_MAX_OUTSTANDING_REQUESTS) | |
6079 | ctrl_info->max_outstanding_requests = | |
6080 | PQI_MAX_OUTSTANDING_REQUESTS; | |
6081 | } | |
6c223761 KB |
6082 | |
6083 | pqi_calculate_io_resources(ctrl_info); | |
6084 | ||
6085 | rc = pqi_alloc_error_buffer(ctrl_info); | |
6086 | if (rc) { | |
6087 | dev_err(&ctrl_info->pci_dev->dev, | |
6088 | "failed to allocate PQI error buffer\n"); | |
6089 | return rc; | |
6090 | } | |
6091 | ||
6092 | /* | |
6093 | * If the function we are about to call succeeds, the | |
6094 | * controller will transition from legacy SIS mode | |
6095 | * into PQI mode. | |
6096 | */ | |
6097 | rc = sis_init_base_struct_addr(ctrl_info); | |
6098 | if (rc) { | |
6099 | dev_err(&ctrl_info->pci_dev->dev, | |
6100 | "error initializing PQI mode\n"); | |
6101 | return rc; | |
6102 | } | |
6103 | ||
6104 | /* Wait for the controller to complete the SIS -> PQI transition. */ | |
6105 | rc = pqi_wait_for_pqi_mode_ready(ctrl_info); | |
6106 | if (rc) { | |
6107 | dev_err(&ctrl_info->pci_dev->dev, | |
6108 | "transition to PQI mode failed\n"); | |
6109 | return rc; | |
6110 | } | |
6111 | ||
6112 | /* From here on, we are running in PQI mode. */ | |
6113 | ctrl_info->pqi_mode_enabled = true; | |
ff6abb73 | 6114 | pqi_save_ctrl_mode(ctrl_info, PQI_MODE); |
6c223761 | 6115 | |
98f87667 KB |
6116 | rc = pqi_process_config_table(ctrl_info); |
6117 | if (rc) | |
6118 | return rc; | |
6119 | ||
6c223761 KB |
6120 | rc = pqi_alloc_admin_queues(ctrl_info); |
6121 | if (rc) { | |
6122 | dev_err(&ctrl_info->pci_dev->dev, | |
d87d5474 | 6123 | "failed to allocate admin queues\n"); |
6c223761 KB |
6124 | return rc; |
6125 | } | |
6126 | ||
6127 | rc = pqi_create_admin_queues(ctrl_info); | |
6128 | if (rc) { | |
6129 | dev_err(&ctrl_info->pci_dev->dev, | |
6130 | "error creating admin queues\n"); | |
6131 | return rc; | |
6132 | } | |
6133 | ||
6134 | rc = pqi_report_device_capability(ctrl_info); | |
6135 | if (rc) { | |
6136 | dev_err(&ctrl_info->pci_dev->dev, | |
6137 | "obtaining device capability failed\n"); | |
6138 | return rc; | |
6139 | } | |
6140 | ||
6141 | rc = pqi_validate_device_capability(ctrl_info); | |
6142 | if (rc) | |
6143 | return rc; | |
6144 | ||
6145 | pqi_calculate_queue_resources(ctrl_info); | |
6146 | ||
6147 | rc = pqi_enable_msix_interrupts(ctrl_info); | |
6148 | if (rc) | |
6149 | return rc; | |
6150 | ||
6151 | if (ctrl_info->num_msix_vectors_enabled < ctrl_info->num_queue_groups) { | |
6152 | ctrl_info->max_msix_vectors = | |
6153 | ctrl_info->num_msix_vectors_enabled; | |
6154 | pqi_calculate_queue_resources(ctrl_info); | |
6155 | } | |
6156 | ||
6157 | rc = pqi_alloc_io_resources(ctrl_info); | |
6158 | if (rc) | |
6159 | return rc; | |
6160 | ||
6161 | rc = pqi_alloc_operational_queues(ctrl_info); | |
d87d5474 KB |
6162 | if (rc) { |
6163 | dev_err(&ctrl_info->pci_dev->dev, | |
6164 | "failed to allocate operational queues\n"); | |
6c223761 | 6165 | return rc; |
d87d5474 | 6166 | } |
6c223761 KB |
6167 | |
6168 | pqi_init_operational_queues(ctrl_info); | |
6169 | ||
6170 | rc = pqi_request_irqs(ctrl_info); | |
6171 | if (rc) | |
6172 | return rc; | |
6173 | ||
6c223761 KB |
6174 | rc = pqi_create_queues(ctrl_info); |
6175 | if (rc) | |
6176 | return rc; | |
6177 | ||
061ef06a KB |
6178 | pqi_change_irq_mode(ctrl_info, IRQ_MODE_MSIX); |
6179 | ||
6180 | ctrl_info->controller_online = true; | |
6181 | pqi_start_heartbeat_timer(ctrl_info); | |
6c223761 | 6182 | |
6a50d6ad | 6183 | rc = pqi_enable_events(ctrl_info); |
6c223761 KB |
6184 | if (rc) { |
6185 | dev_err(&ctrl_info->pci_dev->dev, | |
6a50d6ad | 6186 | "error enabling events\n"); |
6c223761 KB |
6187 | return rc; |
6188 | } | |
6189 | ||
6c223761 KB |
6190 | /* Register with the SCSI subsystem. */ |
6191 | rc = pqi_register_scsi(ctrl_info); | |
6192 | if (rc) | |
6193 | return rc; | |
6194 | ||
6195 | rc = pqi_get_ctrl_firmware_version(ctrl_info); | |
6196 | if (rc) { | |
6197 | dev_err(&ctrl_info->pci_dev->dev, | |
6198 | "error obtaining firmware version\n"); | |
6199 | return rc; | |
6200 | } | |
6201 | ||
6202 | rc = pqi_write_driver_version_to_host_wellness(ctrl_info); | |
6203 | if (rc) { | |
6204 | dev_err(&ctrl_info->pci_dev->dev, | |
6205 | "error updating host wellness\n"); | |
6206 | return rc; | |
6207 | } | |
6208 | ||
6209 | pqi_schedule_update_time_worker(ctrl_info); | |
6210 | ||
6211 | pqi_scan_scsi_devices(ctrl_info); | |
6212 | ||
6213 | return 0; | |
6214 | } | |
6215 | ||
061ef06a KB |
6216 | static void pqi_reinit_queues(struct pqi_ctrl_info *ctrl_info) |
6217 | { | |
6218 | unsigned int i; | |
6219 | struct pqi_admin_queues *admin_queues; | |
6220 | struct pqi_event_queue *event_queue; | |
6221 | ||
6222 | admin_queues = &ctrl_info->admin_queues; | |
6223 | admin_queues->iq_pi_copy = 0; | |
6224 | admin_queues->oq_ci_copy = 0; | |
6225 | *admin_queues->oq_pi = 0; | |
6226 | ||
6227 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
6228 | ctrl_info->queue_groups[i].iq_pi_copy[RAID_PATH] = 0; | |
6229 | ctrl_info->queue_groups[i].iq_pi_copy[AIO_PATH] = 0; | |
6230 | ctrl_info->queue_groups[i].oq_ci_copy = 0; | |
6231 | ||
6232 | *ctrl_info->queue_groups[i].iq_ci[RAID_PATH] = 0; | |
6233 | *ctrl_info->queue_groups[i].iq_ci[AIO_PATH] = 0; | |
6234 | *ctrl_info->queue_groups[i].oq_pi = 0; | |
6235 | } | |
6236 | ||
6237 | event_queue = &ctrl_info->event_queue; | |
6238 | *event_queue->oq_pi = 0; | |
6239 | event_queue->oq_ci_copy = 0; | |
6240 | } | |
6241 | ||
6242 | static int pqi_ctrl_init_resume(struct pqi_ctrl_info *ctrl_info) | |
6243 | { | |
6244 | int rc; | |
6245 | ||
6246 | rc = pqi_force_sis_mode(ctrl_info); | |
6247 | if (rc) | |
6248 | return rc; | |
6249 | ||
6250 | /* | |
6251 | * Wait until the controller is ready to start accepting SIS | |
6252 | * commands. | |
6253 | */ | |
6254 | rc = sis_wait_for_ctrl_ready_resume(ctrl_info); | |
6255 | if (rc) | |
6256 | return rc; | |
6257 | ||
6258 | /* | |
6259 | * If the function we are about to call succeeds, the | |
6260 | * controller will transition from legacy SIS mode | |
6261 | * into PQI mode. | |
6262 | */ | |
6263 | rc = sis_init_base_struct_addr(ctrl_info); | |
6264 | if (rc) { | |
6265 | dev_err(&ctrl_info->pci_dev->dev, | |
6266 | "error initializing PQI mode\n"); | |
6267 | return rc; | |
6268 | } | |
6269 | ||
6270 | /* Wait for the controller to complete the SIS -> PQI transition. */ | |
6271 | rc = pqi_wait_for_pqi_mode_ready(ctrl_info); | |
6272 | if (rc) { | |
6273 | dev_err(&ctrl_info->pci_dev->dev, | |
6274 | "transition to PQI mode failed\n"); | |
6275 | return rc; | |
6276 | } | |
6277 | ||
6278 | /* From here on, we are running in PQI mode. */ | |
6279 | ctrl_info->pqi_mode_enabled = true; | |
6280 | pqi_save_ctrl_mode(ctrl_info, PQI_MODE); | |
6281 | ||
6282 | pqi_reinit_queues(ctrl_info); | |
6283 | ||
6284 | rc = pqi_create_admin_queues(ctrl_info); | |
6285 | if (rc) { | |
6286 | dev_err(&ctrl_info->pci_dev->dev, | |
6287 | "error creating admin queues\n"); | |
6288 | return rc; | |
6289 | } | |
6290 | ||
6291 | rc = pqi_create_queues(ctrl_info); | |
6292 | if (rc) | |
6293 | return rc; | |
6294 | ||
6295 | pqi_change_irq_mode(ctrl_info, IRQ_MODE_MSIX); | |
6296 | ||
6297 | ctrl_info->controller_online = true; | |
6298 | pqi_start_heartbeat_timer(ctrl_info); | |
6299 | pqi_ctrl_unblock_requests(ctrl_info); | |
6300 | ||
6301 | rc = pqi_enable_events(ctrl_info); | |
6302 | if (rc) { | |
6303 | dev_err(&ctrl_info->pci_dev->dev, | |
d87d5474 | 6304 | "error enabling events\n"); |
061ef06a KB |
6305 | return rc; |
6306 | } | |
6307 | ||
6308 | rc = pqi_write_driver_version_to_host_wellness(ctrl_info); | |
6309 | if (rc) { | |
6310 | dev_err(&ctrl_info->pci_dev->dev, | |
6311 | "error updating host wellness\n"); | |
6312 | return rc; | |
6313 | } | |
6314 | ||
6315 | pqi_schedule_update_time_worker(ctrl_info); | |
6316 | ||
6317 | pqi_scan_scsi_devices(ctrl_info); | |
6318 | ||
6319 | return 0; | |
6320 | } | |
6321 | ||
a81ed5f3 KB |
6322 | static inline int pqi_set_pcie_completion_timeout(struct pci_dev *pci_dev, |
6323 | u16 timeout) | |
6324 | { | |
6325 | return pcie_capability_clear_and_set_word(pci_dev, PCI_EXP_DEVCTL2, | |
6326 | PCI_EXP_DEVCTL2_COMP_TIMEOUT, timeout); | |
6327 | } | |
6328 | ||
6c223761 KB |
6329 | static int pqi_pci_init(struct pqi_ctrl_info *ctrl_info) |
6330 | { | |
6331 | int rc; | |
6332 | u64 mask; | |
6333 | ||
6334 | rc = pci_enable_device(ctrl_info->pci_dev); | |
6335 | if (rc) { | |
6336 | dev_err(&ctrl_info->pci_dev->dev, | |
6337 | "failed to enable PCI device\n"); | |
6338 | return rc; | |
6339 | } | |
6340 | ||
6341 | if (sizeof(dma_addr_t) > 4) | |
6342 | mask = DMA_BIT_MASK(64); | |
6343 | else | |
6344 | mask = DMA_BIT_MASK(32); | |
6345 | ||
6346 | rc = dma_set_mask(&ctrl_info->pci_dev->dev, mask); | |
6347 | if (rc) { | |
6348 | dev_err(&ctrl_info->pci_dev->dev, "failed to set DMA mask\n"); | |
6349 | goto disable_device; | |
6350 | } | |
6351 | ||
6352 | rc = pci_request_regions(ctrl_info->pci_dev, DRIVER_NAME_SHORT); | |
6353 | if (rc) { | |
6354 | dev_err(&ctrl_info->pci_dev->dev, | |
6355 | "failed to obtain PCI resources\n"); | |
6356 | goto disable_device; | |
6357 | } | |
6358 | ||
6359 | ctrl_info->iomem_base = ioremap_nocache(pci_resource_start( | |
6360 | ctrl_info->pci_dev, 0), | |
6361 | sizeof(struct pqi_ctrl_registers)); | |
6362 | if (!ctrl_info->iomem_base) { | |
6363 | dev_err(&ctrl_info->pci_dev->dev, | |
6364 | "failed to map memory for controller registers\n"); | |
6365 | rc = -ENOMEM; | |
6366 | goto release_regions; | |
6367 | } | |
6368 | ||
a81ed5f3 KB |
6369 | #define PCI_EXP_COMP_TIMEOUT_65_TO_210_MS 0x6 |
6370 | ||
6371 | /* Increase the PCIe completion timeout. */ | |
6372 | rc = pqi_set_pcie_completion_timeout(ctrl_info->pci_dev, | |
6373 | PCI_EXP_COMP_TIMEOUT_65_TO_210_MS); | |
6374 | if (rc) { | |
6375 | dev_err(&ctrl_info->pci_dev->dev, | |
6376 | "failed to set PCIe completion timeout\n"); | |
6377 | goto release_regions; | |
6378 | } | |
6379 | ||
6c223761 KB |
6380 | /* Enable bus mastering. */ |
6381 | pci_set_master(ctrl_info->pci_dev); | |
6382 | ||
cbe0c7b1 KB |
6383 | ctrl_info->registers = ctrl_info->iomem_base; |
6384 | ctrl_info->pqi_registers = &ctrl_info->registers->pqi_registers; | |
6385 | ||
6c223761 KB |
6386 | pci_set_drvdata(ctrl_info->pci_dev, ctrl_info); |
6387 | ||
6388 | return 0; | |
6389 | ||
6390 | release_regions: | |
6391 | pci_release_regions(ctrl_info->pci_dev); | |
6392 | disable_device: | |
6393 | pci_disable_device(ctrl_info->pci_dev); | |
6394 | ||
6395 | return rc; | |
6396 | } | |
6397 | ||
6398 | static void pqi_cleanup_pci_init(struct pqi_ctrl_info *ctrl_info) | |
6399 | { | |
6400 | iounmap(ctrl_info->iomem_base); | |
6401 | pci_release_regions(ctrl_info->pci_dev); | |
cbe0c7b1 KB |
6402 | if (pci_is_enabled(ctrl_info->pci_dev)) |
6403 | pci_disable_device(ctrl_info->pci_dev); | |
6c223761 KB |
6404 | pci_set_drvdata(ctrl_info->pci_dev, NULL); |
6405 | } | |
6406 | ||
6407 | static struct pqi_ctrl_info *pqi_alloc_ctrl_info(int numa_node) | |
6408 | { | |
6409 | struct pqi_ctrl_info *ctrl_info; | |
6410 | ||
6411 | ctrl_info = kzalloc_node(sizeof(struct pqi_ctrl_info), | |
6412 | GFP_KERNEL, numa_node); | |
6413 | if (!ctrl_info) | |
6414 | return NULL; | |
6415 | ||
6416 | mutex_init(&ctrl_info->scan_mutex); | |
7561a7e4 | 6417 | mutex_init(&ctrl_info->lun_reset_mutex); |
6c223761 KB |
6418 | |
6419 | INIT_LIST_HEAD(&ctrl_info->scsi_device_list); | |
6420 | spin_lock_init(&ctrl_info->scsi_device_list_lock); | |
6421 | ||
6422 | INIT_WORK(&ctrl_info->event_work, pqi_event_worker); | |
6423 | atomic_set(&ctrl_info->num_interrupts, 0); | |
6424 | ||
6425 | INIT_DELAYED_WORK(&ctrl_info->rescan_work, pqi_rescan_worker); | |
6426 | INIT_DELAYED_WORK(&ctrl_info->update_time_work, pqi_update_time_worker); | |
6427 | ||
98f87667 | 6428 | init_timer(&ctrl_info->heartbeat_timer); |
5f310425 | 6429 | INIT_WORK(&ctrl_info->ctrl_offline_work, pqi_ctrl_offline_worker); |
98f87667 | 6430 | |
6c223761 KB |
6431 | sema_init(&ctrl_info->sync_request_sem, |
6432 | PQI_RESERVED_IO_SLOTS_SYNCHRONOUS_REQUESTS); | |
7561a7e4 | 6433 | init_waitqueue_head(&ctrl_info->block_requests_wait); |
6c223761 | 6434 | |
376fb880 KB |
6435 | INIT_LIST_HEAD(&ctrl_info->raid_bypass_retry_list); |
6436 | spin_lock_init(&ctrl_info->raid_bypass_retry_list_lock); | |
6437 | INIT_WORK(&ctrl_info->raid_bypass_retry_work, | |
6438 | pqi_raid_bypass_retry_worker); | |
6439 | ||
6c223761 | 6440 | ctrl_info->ctrl_id = atomic_inc_return(&pqi_controller_count) - 1; |
061ef06a | 6441 | ctrl_info->irq_mode = IRQ_MODE_NONE; |
6c223761 KB |
6442 | ctrl_info->max_msix_vectors = PQI_MAX_MSIX_VECTORS; |
6443 | ||
6444 | return ctrl_info; | |
6445 | } | |
6446 | ||
6447 | static inline void pqi_free_ctrl_info(struct pqi_ctrl_info *ctrl_info) | |
6448 | { | |
6449 | kfree(ctrl_info); | |
6450 | } | |
6451 | ||
6452 | static void pqi_free_interrupts(struct pqi_ctrl_info *ctrl_info) | |
6453 | { | |
98bf061b KB |
6454 | pqi_free_irqs(ctrl_info); |
6455 | pqi_disable_msix_interrupts(ctrl_info); | |
6c223761 KB |
6456 | } |
6457 | ||
6458 | static void pqi_free_ctrl_resources(struct pqi_ctrl_info *ctrl_info) | |
6459 | { | |
6460 | pqi_stop_heartbeat_timer(ctrl_info); | |
6461 | pqi_free_interrupts(ctrl_info); | |
6462 | if (ctrl_info->queue_memory_base) | |
6463 | dma_free_coherent(&ctrl_info->pci_dev->dev, | |
6464 | ctrl_info->queue_memory_length, | |
6465 | ctrl_info->queue_memory_base, | |
6466 | ctrl_info->queue_memory_base_dma_handle); | |
6467 | if (ctrl_info->admin_queue_memory_base) | |
6468 | dma_free_coherent(&ctrl_info->pci_dev->dev, | |
6469 | ctrl_info->admin_queue_memory_length, | |
6470 | ctrl_info->admin_queue_memory_base, | |
6471 | ctrl_info->admin_queue_memory_base_dma_handle); | |
6472 | pqi_free_all_io_requests(ctrl_info); | |
6473 | if (ctrl_info->error_buffer) | |
6474 | dma_free_coherent(&ctrl_info->pci_dev->dev, | |
6475 | ctrl_info->error_buffer_length, | |
6476 | ctrl_info->error_buffer, | |
6477 | ctrl_info->error_buffer_dma_handle); | |
6478 | if (ctrl_info->iomem_base) | |
6479 | pqi_cleanup_pci_init(ctrl_info); | |
6480 | pqi_free_ctrl_info(ctrl_info); | |
6481 | } | |
6482 | ||
6483 | static void pqi_remove_ctrl(struct pqi_ctrl_info *ctrl_info) | |
6484 | { | |
061ef06a KB |
6485 | pqi_cancel_rescan_worker(ctrl_info); |
6486 | pqi_cancel_update_time_worker(ctrl_info); | |
e57a1f9b KB |
6487 | pqi_remove_all_scsi_devices(ctrl_info); |
6488 | pqi_unregister_scsi(ctrl_info); | |
162d7753 KB |
6489 | if (ctrl_info->pqi_mode_enabled) |
6490 | pqi_revert_to_sis_mode(ctrl_info); | |
6c223761 KB |
6491 | pqi_free_ctrl_resources(ctrl_info); |
6492 | } | |
6493 | ||
3c50976f KB |
6494 | static void pqi_perform_lockup_action(void) |
6495 | { | |
6496 | switch (pqi_lockup_action) { | |
6497 | case PANIC: | |
6498 | panic("FATAL: Smart Family Controller lockup detected"); | |
6499 | break; | |
6500 | case REBOOT: | |
6501 | emergency_restart(); | |
6502 | break; | |
6503 | case NONE: | |
6504 | default: | |
6505 | break; | |
6506 | } | |
6507 | } | |
6508 | ||
5f310425 KB |
6509 | static struct pqi_raid_error_info pqi_ctrl_offline_raid_error_info = { |
6510 | .data_out_result = PQI_DATA_IN_OUT_HARDWARE_ERROR, | |
6511 | .status = SAM_STAT_CHECK_CONDITION, | |
6512 | }; | |
6513 | ||
6514 | static void pqi_fail_all_outstanding_requests(struct pqi_ctrl_info *ctrl_info) | |
376fb880 KB |
6515 | { |
6516 | unsigned int i; | |
376fb880 | 6517 | struct pqi_io_request *io_request; |
376fb880 KB |
6518 | struct scsi_cmnd *scmd; |
6519 | ||
5f310425 KB |
6520 | for (i = 0; i < ctrl_info->max_io_slots; i++) { |
6521 | io_request = &ctrl_info->io_request_pool[i]; | |
6522 | if (atomic_read(&io_request->refcount) == 0) | |
6523 | continue; | |
376fb880 | 6524 | |
5f310425 KB |
6525 | scmd = io_request->scmd; |
6526 | if (scmd) { | |
6527 | set_host_byte(scmd, DID_NO_CONNECT); | |
6528 | } else { | |
6529 | io_request->status = -ENXIO; | |
6530 | io_request->error_info = | |
6531 | &pqi_ctrl_offline_raid_error_info; | |
376fb880 | 6532 | } |
5f310425 KB |
6533 | |
6534 | io_request->io_complete_callback(io_request, | |
6535 | io_request->context); | |
376fb880 KB |
6536 | } |
6537 | } | |
6538 | ||
5f310425 | 6539 | static void pqi_take_ctrl_offline_deferred(struct pqi_ctrl_info *ctrl_info) |
376fb880 | 6540 | { |
5f310425 KB |
6541 | pqi_perform_lockup_action(); |
6542 | pqi_stop_heartbeat_timer(ctrl_info); | |
6543 | pqi_free_interrupts(ctrl_info); | |
6544 | pqi_cancel_rescan_worker(ctrl_info); | |
6545 | pqi_cancel_update_time_worker(ctrl_info); | |
6546 | pqi_ctrl_wait_until_quiesced(ctrl_info); | |
6547 | pqi_fail_all_outstanding_requests(ctrl_info); | |
6548 | pqi_clear_all_queued_raid_bypass_retries(ctrl_info); | |
6549 | pqi_ctrl_unblock_requests(ctrl_info); | |
6550 | } | |
6551 | ||
6552 | static void pqi_ctrl_offline_worker(struct work_struct *work) | |
6553 | { | |
6554 | struct pqi_ctrl_info *ctrl_info; | |
6555 | ||
6556 | ctrl_info = container_of(work, struct pqi_ctrl_info, ctrl_offline_work); | |
6557 | pqi_take_ctrl_offline_deferred(ctrl_info); | |
376fb880 KB |
6558 | } |
6559 | ||
6560 | static void pqi_take_ctrl_offline(struct pqi_ctrl_info *ctrl_info) | |
6561 | { | |
5f310425 KB |
6562 | if (!ctrl_info->controller_online) |
6563 | return; | |
6564 | ||
376fb880 | 6565 | ctrl_info->controller_online = false; |
5f310425 KB |
6566 | ctrl_info->pqi_mode_enabled = false; |
6567 | pqi_ctrl_block_requests(ctrl_info); | |
5a259e32 KB |
6568 | if (!pqi_disable_ctrl_shutdown) |
6569 | sis_shutdown_ctrl(ctrl_info); | |
376fb880 KB |
6570 | pci_disable_device(ctrl_info->pci_dev); |
6571 | dev_err(&ctrl_info->pci_dev->dev, "controller offline\n"); | |
5f310425 | 6572 | schedule_work(&ctrl_info->ctrl_offline_work); |
376fb880 KB |
6573 | } |
6574 | ||
d91d7820 | 6575 | static void pqi_print_ctrl_info(struct pci_dev *pci_dev, |
6c223761 KB |
6576 | const struct pci_device_id *id) |
6577 | { | |
6578 | char *ctrl_description; | |
6579 | ||
37b36847 | 6580 | if (id->driver_data) |
6c223761 | 6581 | ctrl_description = (char *)id->driver_data; |
37b36847 KB |
6582 | else |
6583 | ctrl_description = "Microsemi Smart Family Controller"; | |
6c223761 | 6584 | |
d91d7820 | 6585 | dev_info(&pci_dev->dev, "%s found\n", ctrl_description); |
6c223761 KB |
6586 | } |
6587 | ||
d91d7820 KB |
6588 | static int pqi_pci_probe(struct pci_dev *pci_dev, |
6589 | const struct pci_device_id *id) | |
6c223761 KB |
6590 | { |
6591 | int rc; | |
6592 | int node; | |
6593 | struct pqi_ctrl_info *ctrl_info; | |
6594 | ||
d91d7820 | 6595 | pqi_print_ctrl_info(pci_dev, id); |
6c223761 KB |
6596 | |
6597 | if (pqi_disable_device_id_wildcards && | |
6598 | id->subvendor == PCI_ANY_ID && | |
6599 | id->subdevice == PCI_ANY_ID) { | |
d91d7820 | 6600 | dev_warn(&pci_dev->dev, |
6c223761 KB |
6601 | "controller not probed because device ID wildcards are disabled\n"); |
6602 | return -ENODEV; | |
6603 | } | |
6604 | ||
6605 | if (id->subvendor == PCI_ANY_ID || id->subdevice == PCI_ANY_ID) | |
d91d7820 | 6606 | dev_warn(&pci_dev->dev, |
6c223761 KB |
6607 | "controller device ID matched using wildcards\n"); |
6608 | ||
d91d7820 | 6609 | node = dev_to_node(&pci_dev->dev); |
6c223761 | 6610 | if (node == NUMA_NO_NODE) |
d91d7820 | 6611 | set_dev_node(&pci_dev->dev, 0); |
6c223761 KB |
6612 | |
6613 | ctrl_info = pqi_alloc_ctrl_info(node); | |
6614 | if (!ctrl_info) { | |
d91d7820 | 6615 | dev_err(&pci_dev->dev, |
6c223761 KB |
6616 | "failed to allocate controller info block\n"); |
6617 | return -ENOMEM; | |
6618 | } | |
6619 | ||
d91d7820 | 6620 | ctrl_info->pci_dev = pci_dev; |
6c223761 KB |
6621 | |
6622 | rc = pqi_pci_init(ctrl_info); | |
6623 | if (rc) | |
6624 | goto error; | |
6625 | ||
6626 | rc = pqi_ctrl_init(ctrl_info); | |
6627 | if (rc) | |
6628 | goto error; | |
6629 | ||
6630 | return 0; | |
6631 | ||
6632 | error: | |
6633 | pqi_remove_ctrl(ctrl_info); | |
6634 | ||
6635 | return rc; | |
6636 | } | |
6637 | ||
d91d7820 | 6638 | static void pqi_pci_remove(struct pci_dev *pci_dev) |
6c223761 KB |
6639 | { |
6640 | struct pqi_ctrl_info *ctrl_info; | |
6641 | ||
d91d7820 | 6642 | ctrl_info = pci_get_drvdata(pci_dev); |
6c223761 KB |
6643 | if (!ctrl_info) |
6644 | return; | |
6645 | ||
6646 | pqi_remove_ctrl(ctrl_info); | |
6647 | } | |
6648 | ||
d91d7820 | 6649 | static void pqi_shutdown(struct pci_dev *pci_dev) |
6c223761 KB |
6650 | { |
6651 | int rc; | |
6652 | struct pqi_ctrl_info *ctrl_info; | |
6653 | ||
d91d7820 | 6654 | ctrl_info = pci_get_drvdata(pci_dev); |
6c223761 KB |
6655 | if (!ctrl_info) |
6656 | goto error; | |
6657 | ||
6658 | /* | |
6659 | * Write all data in the controller's battery-backed cache to | |
6660 | * storage. | |
6661 | */ | |
6662 | rc = pqi_flush_cache(ctrl_info); | |
6663 | if (rc == 0) | |
6664 | return; | |
6665 | ||
6666 | error: | |
d91d7820 | 6667 | dev_warn(&pci_dev->dev, |
6c223761 KB |
6668 | "unable to flush controller cache\n"); |
6669 | } | |
6670 | ||
3c50976f KB |
6671 | static void pqi_process_lockup_action_param(void) |
6672 | { | |
6673 | unsigned int i; | |
6674 | ||
6675 | if (!pqi_lockup_action_param) | |
6676 | return; | |
6677 | ||
6678 | for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) { | |
6679 | if (strcmp(pqi_lockup_action_param, | |
6680 | pqi_lockup_actions[i].name) == 0) { | |
6681 | pqi_lockup_action = pqi_lockup_actions[i].action; | |
6682 | return; | |
6683 | } | |
6684 | } | |
6685 | ||
6686 | pr_warn("%s: invalid lockup action setting \"%s\" - supported settings: none, reboot, panic\n", | |
6687 | DRIVER_NAME_SHORT, pqi_lockup_action_param); | |
6688 | } | |
6689 | ||
6690 | static void pqi_process_module_params(void) | |
6691 | { | |
6692 | pqi_process_lockup_action_param(); | |
6693 | } | |
6694 | ||
5c146686 | 6695 | static __maybe_unused int pqi_suspend(struct pci_dev *pci_dev, pm_message_t state) |
061ef06a KB |
6696 | { |
6697 | struct pqi_ctrl_info *ctrl_info; | |
6698 | ||
6699 | ctrl_info = pci_get_drvdata(pci_dev); | |
6700 | ||
6701 | pqi_disable_events(ctrl_info); | |
6702 | pqi_cancel_update_time_worker(ctrl_info); | |
6703 | pqi_cancel_rescan_worker(ctrl_info); | |
6704 | pqi_wait_until_scan_finished(ctrl_info); | |
6705 | pqi_wait_until_lun_reset_finished(ctrl_info); | |
6706 | pqi_flush_cache(ctrl_info); | |
6707 | pqi_ctrl_block_requests(ctrl_info); | |
6708 | pqi_ctrl_wait_until_quiesced(ctrl_info); | |
6709 | pqi_wait_until_inbound_queues_empty(ctrl_info); | |
6710 | pqi_ctrl_wait_for_pending_io(ctrl_info); | |
6711 | pqi_stop_heartbeat_timer(ctrl_info); | |
6712 | ||
6713 | if (state.event == PM_EVENT_FREEZE) | |
6714 | return 0; | |
6715 | ||
6716 | pci_save_state(pci_dev); | |
6717 | pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state)); | |
6718 | ||
6719 | ctrl_info->controller_online = false; | |
6720 | ctrl_info->pqi_mode_enabled = false; | |
6721 | ||
6722 | return 0; | |
6723 | } | |
6724 | ||
5c146686 | 6725 | static __maybe_unused int pqi_resume(struct pci_dev *pci_dev) |
061ef06a KB |
6726 | { |
6727 | int rc; | |
6728 | struct pqi_ctrl_info *ctrl_info; | |
6729 | ||
6730 | ctrl_info = pci_get_drvdata(pci_dev); | |
6731 | ||
6732 | if (pci_dev->current_state != PCI_D0) { | |
6733 | ctrl_info->max_hw_queue_index = 0; | |
6734 | pqi_free_interrupts(ctrl_info); | |
6735 | pqi_change_irq_mode(ctrl_info, IRQ_MODE_INTX); | |
6736 | rc = request_irq(pci_irq_vector(pci_dev, 0), pqi_irq_handler, | |
6737 | IRQF_SHARED, DRIVER_NAME_SHORT, | |
6738 | &ctrl_info->queue_groups[0]); | |
6739 | if (rc) { | |
6740 | dev_err(&ctrl_info->pci_dev->dev, | |
6741 | "irq %u init failed with error %d\n", | |
6742 | pci_dev->irq, rc); | |
6743 | return rc; | |
6744 | } | |
6745 | pqi_start_heartbeat_timer(ctrl_info); | |
6746 | pqi_ctrl_unblock_requests(ctrl_info); | |
6747 | return 0; | |
6748 | } | |
6749 | ||
6750 | pci_set_power_state(pci_dev, PCI_D0); | |
6751 | pci_restore_state(pci_dev); | |
6752 | ||
6753 | return pqi_ctrl_init_resume(ctrl_info); | |
6754 | } | |
6755 | ||
6c223761 KB |
6756 | /* Define the PCI IDs for the controllers that we support. */ |
6757 | static const struct pci_device_id pqi_pci_id_table[] = { | |
7eddabff KB |
6758 | { |
6759 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6760 | 0x152d, 0x8a22) | |
6761 | }, | |
6762 | { | |
6763 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6764 | 0x152d, 0x8a23) | |
6765 | }, | |
6766 | { | |
6767 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6768 | 0x152d, 0x8a24) | |
6769 | }, | |
6770 | { | |
6771 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6772 | 0x152d, 0x8a36) | |
6773 | }, | |
6774 | { | |
6775 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6776 | 0x152d, 0x8a37) | |
6777 | }, | |
6c223761 KB |
6778 | { |
6779 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6780 | PCI_VENDOR_ID_ADAPTEC2, 0x0110) | |
6781 | }, | |
6782 | { | |
6783 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 6784 | PCI_VENDOR_ID_ADAPTEC2, 0x0605) |
6c223761 KB |
6785 | }, |
6786 | { | |
6787 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 6788 | PCI_VENDOR_ID_ADAPTEC2, 0x0800) |
6c223761 KB |
6789 | }, |
6790 | { | |
6791 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 6792 | PCI_VENDOR_ID_ADAPTEC2, 0x0801) |
6c223761 KB |
6793 | }, |
6794 | { | |
6795 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 6796 | PCI_VENDOR_ID_ADAPTEC2, 0x0802) |
6c223761 KB |
6797 | }, |
6798 | { | |
6799 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 6800 | PCI_VENDOR_ID_ADAPTEC2, 0x0803) |
6c223761 KB |
6801 | }, |
6802 | { | |
6803 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 6804 | PCI_VENDOR_ID_ADAPTEC2, 0x0804) |
6c223761 KB |
6805 | }, |
6806 | { | |
6807 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 6808 | PCI_VENDOR_ID_ADAPTEC2, 0x0805) |
6c223761 KB |
6809 | }, |
6810 | { | |
6811 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 6812 | PCI_VENDOR_ID_ADAPTEC2, 0x0806) |
6c223761 KB |
6813 | }, |
6814 | { | |
6815 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 6816 | PCI_VENDOR_ID_ADAPTEC2, 0x0900) |
6c223761 KB |
6817 | }, |
6818 | { | |
6819 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 6820 | PCI_VENDOR_ID_ADAPTEC2, 0x0901) |
6c223761 KB |
6821 | }, |
6822 | { | |
6823 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 6824 | PCI_VENDOR_ID_ADAPTEC2, 0x0902) |
6c223761 KB |
6825 | }, |
6826 | { | |
6827 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 6828 | PCI_VENDOR_ID_ADAPTEC2, 0x0903) |
6c223761 KB |
6829 | }, |
6830 | { | |
6831 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 6832 | PCI_VENDOR_ID_ADAPTEC2, 0x0904) |
6c223761 KB |
6833 | }, |
6834 | { | |
6835 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 6836 | PCI_VENDOR_ID_ADAPTEC2, 0x0905) |
6c223761 KB |
6837 | }, |
6838 | { | |
6839 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 6840 | PCI_VENDOR_ID_ADAPTEC2, 0x0906) |
6c223761 KB |
6841 | }, |
6842 | { | |
6843 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 6844 | PCI_VENDOR_ID_ADAPTEC2, 0x0907) |
6c223761 KB |
6845 | }, |
6846 | { | |
6847 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 6848 | PCI_VENDOR_ID_ADAPTEC2, 0x0908) |
6c223761 KB |
6849 | }, |
6850 | { | |
6851 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 6852 | PCI_VENDOR_ID_ADAPTEC2, 0x1200) |
6c223761 KB |
6853 | }, |
6854 | { | |
6855 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 6856 | PCI_VENDOR_ID_ADAPTEC2, 0x1201) |
6c223761 KB |
6857 | }, |
6858 | { | |
6859 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 6860 | PCI_VENDOR_ID_ADAPTEC2, 0x1202) |
6c223761 KB |
6861 | }, |
6862 | { | |
6863 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 6864 | PCI_VENDOR_ID_ADAPTEC2, 0x1280) |
6c223761 KB |
6865 | }, |
6866 | { | |
6867 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 6868 | PCI_VENDOR_ID_ADAPTEC2, 0x1281) |
6c223761 KB |
6869 | }, |
6870 | { | |
6871 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 6872 | PCI_VENDOR_ID_ADAPTEC2, 0x1300) |
6c223761 KB |
6873 | }, |
6874 | { | |
6875 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 6876 | PCI_VENDOR_ID_ADAPTEC2, 0x1301) |
6c223761 KB |
6877 | }, |
6878 | { | |
6879 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff KB |
6880 | PCI_VENDOR_ID_ADAPTEC2, 0x1380) |
6881 | }, | |
6882 | { | |
6883 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6884 | PCI_VENDOR_ID_HP, 0x0600) | |
6885 | }, | |
6886 | { | |
6887 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6888 | PCI_VENDOR_ID_HP, 0x0601) | |
6889 | }, | |
6890 | { | |
6891 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6892 | PCI_VENDOR_ID_HP, 0x0602) | |
6893 | }, | |
6894 | { | |
6895 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6896 | PCI_VENDOR_ID_HP, 0x0603) | |
6897 | }, | |
6898 | { | |
6899 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6900 | PCI_VENDOR_ID_HP, 0x0604) | |
6901 | }, | |
6902 | { | |
6903 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6904 | PCI_VENDOR_ID_HP, 0x0606) | |
6905 | }, | |
6906 | { | |
6907 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6908 | PCI_VENDOR_ID_HP, 0x0650) | |
6909 | }, | |
6910 | { | |
6911 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6912 | PCI_VENDOR_ID_HP, 0x0651) | |
6913 | }, | |
6914 | { | |
6915 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6916 | PCI_VENDOR_ID_HP, 0x0652) | |
6917 | }, | |
6918 | { | |
6919 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6920 | PCI_VENDOR_ID_HP, 0x0653) | |
6921 | }, | |
6922 | { | |
6923 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6924 | PCI_VENDOR_ID_HP, 0x0654) | |
6925 | }, | |
6926 | { | |
6927 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6928 | PCI_VENDOR_ID_HP, 0x0655) | |
6929 | }, | |
6930 | { | |
6931 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6932 | PCI_VENDOR_ID_HP, 0x0656) | |
6933 | }, | |
6934 | { | |
6935 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6936 | PCI_VENDOR_ID_HP, 0x0657) | |
6937 | }, | |
6938 | { | |
6939 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6940 | PCI_VENDOR_ID_HP, 0x0700) | |
6941 | }, | |
6942 | { | |
6943 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6944 | PCI_VENDOR_ID_HP, 0x0701) | |
6c223761 KB |
6945 | }, |
6946 | { | |
6947 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6948 | PCI_VENDOR_ID_HP, 0x1001) | |
6949 | }, | |
6950 | { | |
6951 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6952 | PCI_VENDOR_ID_HP, 0x1100) | |
6953 | }, | |
6954 | { | |
6955 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6956 | PCI_VENDOR_ID_HP, 0x1101) | |
6957 | }, | |
6958 | { | |
6959 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6960 | PCI_VENDOR_ID_HP, 0x1102) | |
6961 | }, | |
6962 | { | |
6963 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6964 | PCI_VENDOR_ID_HP, 0x1150) | |
6965 | }, | |
6966 | { | |
6967 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
6968 | PCI_ANY_ID, PCI_ANY_ID) | |
6969 | }, | |
6970 | { 0 } | |
6971 | }; | |
6972 | ||
6973 | MODULE_DEVICE_TABLE(pci, pqi_pci_id_table); | |
6974 | ||
6975 | static struct pci_driver pqi_pci_driver = { | |
6976 | .name = DRIVER_NAME_SHORT, | |
6977 | .id_table = pqi_pci_id_table, | |
6978 | .probe = pqi_pci_probe, | |
6979 | .remove = pqi_pci_remove, | |
6980 | .shutdown = pqi_shutdown, | |
061ef06a KB |
6981 | #if defined(CONFIG_PM) |
6982 | .suspend = pqi_suspend, | |
6983 | .resume = pqi_resume, | |
6984 | #endif | |
6c223761 KB |
6985 | }; |
6986 | ||
6987 | static int __init pqi_init(void) | |
6988 | { | |
6989 | int rc; | |
6990 | ||
6991 | pr_info(DRIVER_NAME "\n"); | |
6992 | ||
6993 | pqi_sas_transport_template = | |
6994 | sas_attach_transport(&pqi_sas_transport_functions); | |
6995 | if (!pqi_sas_transport_template) | |
6996 | return -ENODEV; | |
6997 | ||
3c50976f KB |
6998 | pqi_process_module_params(); |
6999 | ||
6c223761 KB |
7000 | rc = pci_register_driver(&pqi_pci_driver); |
7001 | if (rc) | |
7002 | sas_release_transport(pqi_sas_transport_template); | |
7003 | ||
7004 | return rc; | |
7005 | } | |
7006 | ||
7007 | static void __exit pqi_cleanup(void) | |
7008 | { | |
7009 | pci_unregister_driver(&pqi_pci_driver); | |
7010 | sas_release_transport(pqi_sas_transport_template); | |
7011 | } | |
7012 | ||
7013 | module_init(pqi_init); | |
7014 | module_exit(pqi_cleanup); | |
7015 | ||
7016 | static void __attribute__((unused)) verify_structures(void) | |
7017 | { | |
7018 | BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, | |
7019 | sis_host_to_ctrl_doorbell) != 0x20); | |
7020 | BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, | |
7021 | sis_interrupt_mask) != 0x34); | |
7022 | BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, | |
7023 | sis_ctrl_to_host_doorbell) != 0x9c); | |
7024 | BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, | |
7025 | sis_ctrl_to_host_doorbell_clear) != 0xa0); | |
ff6abb73 KB |
7026 | BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, |
7027 | sis_driver_scratch) != 0xb0); | |
6c223761 KB |
7028 | BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, |
7029 | sis_firmware_status) != 0xbc); | |
7030 | BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, | |
7031 | sis_mailbox) != 0x1000); | |
7032 | BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, | |
7033 | pqi_registers) != 0x4000); | |
7034 | ||
7035 | BUILD_BUG_ON(offsetof(struct pqi_iu_header, | |
7036 | iu_type) != 0x0); | |
7037 | BUILD_BUG_ON(offsetof(struct pqi_iu_header, | |
7038 | iu_length) != 0x2); | |
7039 | BUILD_BUG_ON(offsetof(struct pqi_iu_header, | |
7040 | response_queue_id) != 0x4); | |
7041 | BUILD_BUG_ON(offsetof(struct pqi_iu_header, | |
7042 | work_area) != 0x6); | |
7043 | BUILD_BUG_ON(sizeof(struct pqi_iu_header) != 0x8); | |
7044 | ||
7045 | BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, | |
7046 | status) != 0x0); | |
7047 | BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, | |
7048 | service_response) != 0x1); | |
7049 | BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, | |
7050 | data_present) != 0x2); | |
7051 | BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, | |
7052 | reserved) != 0x3); | |
7053 | BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, | |
7054 | residual_count) != 0x4); | |
7055 | BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, | |
7056 | data_length) != 0x8); | |
7057 | BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, | |
7058 | reserved1) != 0xa); | |
7059 | BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, | |
7060 | data) != 0xc); | |
7061 | BUILD_BUG_ON(sizeof(struct pqi_aio_error_info) != 0x10c); | |
7062 | ||
7063 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
7064 | data_in_result) != 0x0); | |
7065 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
7066 | data_out_result) != 0x1); | |
7067 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
7068 | reserved) != 0x2); | |
7069 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
7070 | status) != 0x5); | |
7071 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
7072 | status_qualifier) != 0x6); | |
7073 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
7074 | sense_data_length) != 0x8); | |
7075 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
7076 | response_data_length) != 0xa); | |
7077 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
7078 | data_in_transferred) != 0xc); | |
7079 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
7080 | data_out_transferred) != 0x10); | |
7081 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
7082 | data) != 0x14); | |
7083 | BUILD_BUG_ON(sizeof(struct pqi_raid_error_info) != 0x114); | |
7084 | ||
7085 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7086 | signature) != 0x0); | |
7087 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7088 | function_and_status_code) != 0x8); | |
7089 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7090 | max_admin_iq_elements) != 0x10); | |
7091 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7092 | max_admin_oq_elements) != 0x11); | |
7093 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7094 | admin_iq_element_length) != 0x12); | |
7095 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7096 | admin_oq_element_length) != 0x13); | |
7097 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7098 | max_reset_timeout) != 0x14); | |
7099 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7100 | legacy_intx_status) != 0x18); | |
7101 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7102 | legacy_intx_mask_set) != 0x1c); | |
7103 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7104 | legacy_intx_mask_clear) != 0x20); | |
7105 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7106 | device_status) != 0x40); | |
7107 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7108 | admin_iq_pi_offset) != 0x48); | |
7109 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7110 | admin_oq_ci_offset) != 0x50); | |
7111 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7112 | admin_iq_element_array_addr) != 0x58); | |
7113 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7114 | admin_oq_element_array_addr) != 0x60); | |
7115 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7116 | admin_iq_ci_addr) != 0x68); | |
7117 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7118 | admin_oq_pi_addr) != 0x70); | |
7119 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7120 | admin_iq_num_elements) != 0x78); | |
7121 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7122 | admin_oq_num_elements) != 0x79); | |
7123 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7124 | admin_queue_int_msg_num) != 0x7a); | |
7125 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7126 | device_error) != 0x80); | |
7127 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7128 | error_details) != 0x88); | |
7129 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7130 | device_reset) != 0x90); | |
7131 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7132 | power_action) != 0x94); | |
7133 | BUILD_BUG_ON(sizeof(struct pqi_device_registers) != 0x100); | |
7134 | ||
7135 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7136 | header.iu_type) != 0); | |
7137 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7138 | header.iu_length) != 2); | |
7139 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7140 | header.work_area) != 6); | |
7141 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7142 | request_id) != 8); | |
7143 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7144 | function_code) != 10); | |
7145 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7146 | data.report_device_capability.buffer_length) != 44); | |
7147 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7148 | data.report_device_capability.sg_descriptor) != 48); | |
7149 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7150 | data.create_operational_iq.queue_id) != 12); | |
7151 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7152 | data.create_operational_iq.element_array_addr) != 16); | |
7153 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7154 | data.create_operational_iq.ci_addr) != 24); | |
7155 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7156 | data.create_operational_iq.num_elements) != 32); | |
7157 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7158 | data.create_operational_iq.element_length) != 34); | |
7159 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7160 | data.create_operational_iq.queue_protocol) != 36); | |
7161 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7162 | data.create_operational_oq.queue_id) != 12); | |
7163 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7164 | data.create_operational_oq.element_array_addr) != 16); | |
7165 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7166 | data.create_operational_oq.pi_addr) != 24); | |
7167 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7168 | data.create_operational_oq.num_elements) != 32); | |
7169 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7170 | data.create_operational_oq.element_length) != 34); | |
7171 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7172 | data.create_operational_oq.queue_protocol) != 36); | |
7173 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7174 | data.create_operational_oq.int_msg_num) != 40); | |
7175 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7176 | data.create_operational_oq.coalescing_count) != 42); | |
7177 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7178 | data.create_operational_oq.min_coalescing_time) != 44); | |
7179 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7180 | data.create_operational_oq.max_coalescing_time) != 48); | |
7181 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7182 | data.delete_operational_queue.queue_id) != 12); | |
7183 | BUILD_BUG_ON(sizeof(struct pqi_general_admin_request) != 64); | |
7184 | BUILD_BUG_ON(FIELD_SIZEOF(struct pqi_general_admin_request, | |
7185 | data.create_operational_iq) != 64 - 11); | |
7186 | BUILD_BUG_ON(FIELD_SIZEOF(struct pqi_general_admin_request, | |
7187 | data.create_operational_oq) != 64 - 11); | |
7188 | BUILD_BUG_ON(FIELD_SIZEOF(struct pqi_general_admin_request, | |
7189 | data.delete_operational_queue) != 64 - 11); | |
7190 | ||
7191 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
7192 | header.iu_type) != 0); | |
7193 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
7194 | header.iu_length) != 2); | |
7195 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
7196 | header.work_area) != 6); | |
7197 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
7198 | request_id) != 8); | |
7199 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
7200 | function_code) != 10); | |
7201 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
7202 | status) != 11); | |
7203 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
7204 | data.create_operational_iq.status_descriptor) != 12); | |
7205 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
7206 | data.create_operational_iq.iq_pi_offset) != 16); | |
7207 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
7208 | data.create_operational_oq.status_descriptor) != 12); | |
7209 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
7210 | data.create_operational_oq.oq_ci_offset) != 16); | |
7211 | BUILD_BUG_ON(sizeof(struct pqi_general_admin_response) != 64); | |
7212 | ||
7213 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
7214 | header.iu_type) != 0); | |
7215 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
7216 | header.iu_length) != 2); | |
7217 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
7218 | header.response_queue_id) != 4); | |
7219 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
7220 | header.work_area) != 6); | |
7221 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
7222 | request_id) != 8); | |
7223 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
7224 | nexus_id) != 10); | |
7225 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
7226 | buffer_length) != 12); | |
7227 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
7228 | lun_number) != 16); | |
7229 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
7230 | protocol_specific) != 24); | |
7231 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
7232 | error_index) != 27); | |
7233 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
7234 | cdb) != 32); | |
7235 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
7236 | sg_descriptors) != 64); | |
7237 | BUILD_BUG_ON(sizeof(struct pqi_raid_path_request) != | |
7238 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); | |
7239 | ||
7240 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7241 | header.iu_type) != 0); | |
7242 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7243 | header.iu_length) != 2); | |
7244 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7245 | header.response_queue_id) != 4); | |
7246 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7247 | header.work_area) != 6); | |
7248 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7249 | request_id) != 8); | |
7250 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7251 | nexus_id) != 12); | |
7252 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7253 | buffer_length) != 16); | |
7254 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7255 | data_encryption_key_index) != 22); | |
7256 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7257 | encrypt_tweak_lower) != 24); | |
7258 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7259 | encrypt_tweak_upper) != 28); | |
7260 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7261 | cdb) != 32); | |
7262 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7263 | error_index) != 48); | |
7264 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7265 | num_sg_descriptors) != 50); | |
7266 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7267 | cdb_length) != 51); | |
7268 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7269 | lun_number) != 52); | |
7270 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7271 | sg_descriptors) != 64); | |
7272 | BUILD_BUG_ON(sizeof(struct pqi_aio_path_request) != | |
7273 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); | |
7274 | ||
7275 | BUILD_BUG_ON(offsetof(struct pqi_io_response, | |
7276 | header.iu_type) != 0); | |
7277 | BUILD_BUG_ON(offsetof(struct pqi_io_response, | |
7278 | header.iu_length) != 2); | |
7279 | BUILD_BUG_ON(offsetof(struct pqi_io_response, | |
7280 | request_id) != 8); | |
7281 | BUILD_BUG_ON(offsetof(struct pqi_io_response, | |
7282 | error_index) != 10); | |
7283 | ||
7284 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
7285 | header.iu_type) != 0); | |
7286 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
7287 | header.iu_length) != 2); | |
7288 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
7289 | header.response_queue_id) != 4); | |
7290 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
7291 | request_id) != 8); | |
7292 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
7293 | data.report_event_configuration.buffer_length) != 12); | |
7294 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
7295 | data.report_event_configuration.sg_descriptors) != 16); | |
7296 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
7297 | data.set_event_configuration.global_event_oq_id) != 10); | |
7298 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
7299 | data.set_event_configuration.buffer_length) != 12); | |
7300 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
7301 | data.set_event_configuration.sg_descriptors) != 16); | |
7302 | ||
7303 | BUILD_BUG_ON(offsetof(struct pqi_iu_layer_descriptor, | |
7304 | max_inbound_iu_length) != 6); | |
7305 | BUILD_BUG_ON(offsetof(struct pqi_iu_layer_descriptor, | |
7306 | max_outbound_iu_length) != 14); | |
7307 | BUILD_BUG_ON(sizeof(struct pqi_iu_layer_descriptor) != 16); | |
7308 | ||
7309 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
7310 | data_length) != 0); | |
7311 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
7312 | iq_arbitration_priority_support_bitmask) != 8); | |
7313 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
7314 | maximum_aw_a) != 9); | |
7315 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
7316 | maximum_aw_b) != 10); | |
7317 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
7318 | maximum_aw_c) != 11); | |
7319 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
7320 | max_inbound_queues) != 16); | |
7321 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
7322 | max_elements_per_iq) != 18); | |
7323 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
7324 | max_iq_element_length) != 24); | |
7325 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
7326 | min_iq_element_length) != 26); | |
7327 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
7328 | max_outbound_queues) != 30); | |
7329 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
7330 | max_elements_per_oq) != 32); | |
7331 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
7332 | intr_coalescing_time_granularity) != 34); | |
7333 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
7334 | max_oq_element_length) != 36); | |
7335 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
7336 | min_oq_element_length) != 38); | |
7337 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
7338 | iu_layer_descriptors) != 64); | |
7339 | BUILD_BUG_ON(sizeof(struct pqi_device_capability) != 576); | |
7340 | ||
7341 | BUILD_BUG_ON(offsetof(struct pqi_event_descriptor, | |
7342 | event_type) != 0); | |
7343 | BUILD_BUG_ON(offsetof(struct pqi_event_descriptor, | |
7344 | oq_id) != 2); | |
7345 | BUILD_BUG_ON(sizeof(struct pqi_event_descriptor) != 4); | |
7346 | ||
7347 | BUILD_BUG_ON(offsetof(struct pqi_event_config, | |
7348 | num_event_descriptors) != 2); | |
7349 | BUILD_BUG_ON(offsetof(struct pqi_event_config, | |
7350 | descriptors) != 4); | |
7351 | ||
061ef06a KB |
7352 | BUILD_BUG_ON(PQI_NUM_SUPPORTED_EVENTS != |
7353 | ARRAY_SIZE(pqi_supported_event_types)); | |
7354 | ||
6c223761 KB |
7355 | BUILD_BUG_ON(offsetof(struct pqi_event_response, |
7356 | header.iu_type) != 0); | |
7357 | BUILD_BUG_ON(offsetof(struct pqi_event_response, | |
7358 | header.iu_length) != 2); | |
7359 | BUILD_BUG_ON(offsetof(struct pqi_event_response, | |
7360 | event_type) != 8); | |
7361 | BUILD_BUG_ON(offsetof(struct pqi_event_response, | |
7362 | event_id) != 10); | |
7363 | BUILD_BUG_ON(offsetof(struct pqi_event_response, | |
7364 | additional_event_id) != 12); | |
7365 | BUILD_BUG_ON(offsetof(struct pqi_event_response, | |
7366 | data) != 16); | |
7367 | BUILD_BUG_ON(sizeof(struct pqi_event_response) != 32); | |
7368 | ||
7369 | BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, | |
7370 | header.iu_type) != 0); | |
7371 | BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, | |
7372 | header.iu_length) != 2); | |
7373 | BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, | |
7374 | event_type) != 8); | |
7375 | BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, | |
7376 | event_id) != 10); | |
7377 | BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, | |
7378 | additional_event_id) != 12); | |
7379 | BUILD_BUG_ON(sizeof(struct pqi_event_acknowledge_request) != 16); | |
7380 | ||
7381 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
7382 | header.iu_type) != 0); | |
7383 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
7384 | header.iu_length) != 2); | |
7385 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
7386 | request_id) != 8); | |
7387 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
7388 | nexus_id) != 10); | |
7389 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
7390 | lun_number) != 16); | |
7391 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
7392 | protocol_specific) != 24); | |
7393 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
7394 | outbound_queue_id_to_manage) != 26); | |
7395 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
7396 | request_id_to_manage) != 28); | |
7397 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
7398 | task_management_function) != 30); | |
7399 | BUILD_BUG_ON(sizeof(struct pqi_task_management_request) != 32); | |
7400 | ||
7401 | BUILD_BUG_ON(offsetof(struct pqi_task_management_response, | |
7402 | header.iu_type) != 0); | |
7403 | BUILD_BUG_ON(offsetof(struct pqi_task_management_response, | |
7404 | header.iu_length) != 2); | |
7405 | BUILD_BUG_ON(offsetof(struct pqi_task_management_response, | |
7406 | request_id) != 8); | |
7407 | BUILD_BUG_ON(offsetof(struct pqi_task_management_response, | |
7408 | nexus_id) != 10); | |
7409 | BUILD_BUG_ON(offsetof(struct pqi_task_management_response, | |
7410 | additional_response_info) != 12); | |
7411 | BUILD_BUG_ON(offsetof(struct pqi_task_management_response, | |
7412 | response_code) != 15); | |
7413 | BUILD_BUG_ON(sizeof(struct pqi_task_management_response) != 16); | |
7414 | ||
7415 | BUILD_BUG_ON(offsetof(struct bmic_identify_controller, | |
7416 | configured_logical_drive_count) != 0); | |
7417 | BUILD_BUG_ON(offsetof(struct bmic_identify_controller, | |
7418 | configuration_signature) != 1); | |
7419 | BUILD_BUG_ON(offsetof(struct bmic_identify_controller, | |
7420 | firmware_version) != 5); | |
7421 | BUILD_BUG_ON(offsetof(struct bmic_identify_controller, | |
7422 | extended_logical_unit_count) != 154); | |
7423 | BUILD_BUG_ON(offsetof(struct bmic_identify_controller, | |
7424 | firmware_build_number) != 190); | |
7425 | BUILD_BUG_ON(offsetof(struct bmic_identify_controller, | |
7426 | controller_mode) != 292); | |
7427 | ||
1be42f46 KB |
7428 | BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, |
7429 | phys_bay_in_box) != 115); | |
7430 | BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, | |
7431 | device_type) != 120); | |
7432 | BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, | |
7433 | redundant_path_present_map) != 1736); | |
7434 | BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, | |
7435 | active_path_number) != 1738); | |
7436 | BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, | |
7437 | alternate_paths_phys_connector) != 1739); | |
7438 | BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, | |
7439 | alternate_paths_phys_box_on_port) != 1755); | |
7440 | BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, | |
7441 | current_queue_depth_limit) != 1796); | |
7442 | BUILD_BUG_ON(sizeof(struct bmic_identify_physical_device) != 2560); | |
7443 | ||
6c223761 KB |
7444 | BUILD_BUG_ON(PQI_ADMIN_IQ_NUM_ELEMENTS > 255); |
7445 | BUILD_BUG_ON(PQI_ADMIN_OQ_NUM_ELEMENTS > 255); | |
7446 | BUILD_BUG_ON(PQI_ADMIN_IQ_ELEMENT_LENGTH % | |
7447 | PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0); | |
7448 | BUILD_BUG_ON(PQI_ADMIN_OQ_ELEMENT_LENGTH % | |
7449 | PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0); | |
7450 | BUILD_BUG_ON(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH > 1048560); | |
7451 | BUILD_BUG_ON(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH % | |
7452 | PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0); | |
7453 | BUILD_BUG_ON(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH > 1048560); | |
7454 | BUILD_BUG_ON(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH % | |
7455 | PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0); | |
7456 | ||
7457 | BUILD_BUG_ON(PQI_RESERVED_IO_SLOTS >= PQI_MAX_OUTSTANDING_REQUESTS); | |
d727a776 KB |
7458 | BUILD_BUG_ON(PQI_RESERVED_IO_SLOTS >= |
7459 | PQI_MAX_OUTSTANDING_REQUESTS_KDUMP); | |
6c223761 | 7460 | } |