Commit | Line | Data |
---|---|---|
6c223761 KB |
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 | ||
4ae5e9d1 | 43 | #define DRIVER_VERSION "1.1.4-130" |
2d154f5f | 44 | #define DRIVER_MAJOR 1 |
b98117ca | 45 | #define DRIVER_MINOR 1 |
61c187e4 | 46 | #define DRIVER_RELEASE 4 |
4ae5e9d1 | 47 | #define DRIVER_REVISION 130 |
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); |
1e46731e MR |
77 | static int pqi_device_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info, |
78 | struct pqi_scsi_dev *device, unsigned long timeout_secs); | |
6c223761 KB |
79 | |
80 | /* for flags argument to pqi_submit_raid_request_synchronous() */ | |
81 | #define PQI_SYNC_FLAGS_INTERRUPTABLE 0x1 | |
82 | ||
83 | static struct scsi_transport_template *pqi_sas_transport_template; | |
84 | ||
85 | static atomic_t pqi_controller_count = ATOMIC_INIT(0); | |
86 | ||
3c50976f KB |
87 | enum pqi_lockup_action { |
88 | NONE, | |
89 | REBOOT, | |
90 | PANIC | |
91 | }; | |
92 | ||
93 | static enum pqi_lockup_action pqi_lockup_action = NONE; | |
94 | ||
95 | static struct { | |
96 | enum pqi_lockup_action action; | |
97 | char *name; | |
98 | } pqi_lockup_actions[] = { | |
99 | { | |
100 | .action = NONE, | |
101 | .name = "none", | |
102 | }, | |
103 | { | |
104 | .action = REBOOT, | |
105 | .name = "reboot", | |
106 | }, | |
107 | { | |
108 | .action = PANIC, | |
109 | .name = "panic", | |
110 | }, | |
111 | }; | |
112 | ||
6a50d6ad KB |
113 | static unsigned int pqi_supported_event_types[] = { |
114 | PQI_EVENT_TYPE_HOTPLUG, | |
115 | PQI_EVENT_TYPE_HARDWARE, | |
116 | PQI_EVENT_TYPE_PHYSICAL_DEVICE, | |
117 | PQI_EVENT_TYPE_LOGICAL_DEVICE, | |
118 | PQI_EVENT_TYPE_AIO_STATE_CHANGE, | |
119 | PQI_EVENT_TYPE_AIO_CONFIG_CHANGE, | |
120 | }; | |
121 | ||
6c223761 KB |
122 | static int pqi_disable_device_id_wildcards; |
123 | module_param_named(disable_device_id_wildcards, | |
cbe0c7b1 | 124 | pqi_disable_device_id_wildcards, int, 0644); |
6c223761 KB |
125 | MODULE_PARM_DESC(disable_device_id_wildcards, |
126 | "Disable device ID wildcards."); | |
127 | ||
5a259e32 KB |
128 | static int pqi_disable_heartbeat; |
129 | module_param_named(disable_heartbeat, | |
130 | pqi_disable_heartbeat, int, 0644); | |
131 | MODULE_PARM_DESC(disable_heartbeat, | |
132 | "Disable heartbeat."); | |
133 | ||
134 | static int pqi_disable_ctrl_shutdown; | |
135 | module_param_named(disable_ctrl_shutdown, | |
136 | pqi_disable_ctrl_shutdown, int, 0644); | |
137 | MODULE_PARM_DESC(disable_ctrl_shutdown, | |
138 | "Disable controller shutdown when controller locked up."); | |
139 | ||
3c50976f KB |
140 | static char *pqi_lockup_action_param; |
141 | module_param_named(lockup_action, | |
142 | pqi_lockup_action_param, charp, 0644); | |
143 | MODULE_PARM_DESC(lockup_action, "Action to take when controller locked up.\n" | |
144 | "\t\tSupported: none, reboot, panic\n" | |
145 | "\t\tDefault: none"); | |
146 | ||
6c223761 KB |
147 | static char *raid_levels[] = { |
148 | "RAID-0", | |
149 | "RAID-4", | |
150 | "RAID-1(1+0)", | |
151 | "RAID-5", | |
152 | "RAID-5+1", | |
153 | "RAID-ADG", | |
154 | "RAID-1(ADM)", | |
155 | }; | |
156 | ||
157 | static char *pqi_raid_level_to_string(u8 raid_level) | |
158 | { | |
159 | if (raid_level < ARRAY_SIZE(raid_levels)) | |
160 | return raid_levels[raid_level]; | |
161 | ||
a9f93392 | 162 | return "RAID UNKNOWN"; |
6c223761 KB |
163 | } |
164 | ||
165 | #define SA_RAID_0 0 | |
166 | #define SA_RAID_4 1 | |
167 | #define SA_RAID_1 2 /* also used for RAID 10 */ | |
168 | #define SA_RAID_5 3 /* also used for RAID 50 */ | |
169 | #define SA_RAID_51 4 | |
170 | #define SA_RAID_6 5 /* also used for RAID 60 */ | |
171 | #define SA_RAID_ADM 6 /* also used for RAID 1+0 ADM */ | |
172 | #define SA_RAID_MAX SA_RAID_ADM | |
173 | #define SA_RAID_UNKNOWN 0xff | |
174 | ||
175 | static inline void pqi_scsi_done(struct scsi_cmnd *scmd) | |
176 | { | |
7561a7e4 | 177 | pqi_prep_for_scsi_done(scmd); |
6c223761 KB |
178 | scmd->scsi_done(scmd); |
179 | } | |
180 | ||
b6e2ef67 DC |
181 | static inline void pqi_disable_write_same(struct scsi_device *sdev) |
182 | { | |
183 | sdev->no_write_same = 1; | |
184 | } | |
185 | ||
6c223761 KB |
186 | static inline bool pqi_scsi3addr_equal(u8 *scsi3addr1, u8 *scsi3addr2) |
187 | { | |
188 | return memcmp(scsi3addr1, scsi3addr2, 8) == 0; | |
189 | } | |
190 | ||
191 | static inline struct pqi_ctrl_info *shost_to_hba(struct Scsi_Host *shost) | |
192 | { | |
193 | void *hostdata = shost_priv(shost); | |
194 | ||
195 | return *((struct pqi_ctrl_info **)hostdata); | |
196 | } | |
197 | ||
198 | static inline bool pqi_is_logical_device(struct pqi_scsi_dev *device) | |
199 | { | |
200 | return !device->is_physical_device; | |
201 | } | |
202 | ||
bd10cf0b KB |
203 | static inline bool pqi_is_external_raid_addr(u8 *scsi3addr) |
204 | { | |
205 | return scsi3addr[2] != 0; | |
206 | } | |
207 | ||
6c223761 KB |
208 | static inline bool pqi_ctrl_offline(struct pqi_ctrl_info *ctrl_info) |
209 | { | |
210 | return !ctrl_info->controller_online; | |
211 | } | |
212 | ||
213 | static inline void pqi_check_ctrl_health(struct pqi_ctrl_info *ctrl_info) | |
214 | { | |
215 | if (ctrl_info->controller_online) | |
216 | if (!sis_is_firmware_running(ctrl_info)) | |
217 | pqi_take_ctrl_offline(ctrl_info); | |
218 | } | |
219 | ||
220 | static inline bool pqi_is_hba_lunid(u8 *scsi3addr) | |
221 | { | |
222 | return pqi_scsi3addr_equal(scsi3addr, RAID_CTLR_LUNID); | |
223 | } | |
224 | ||
ff6abb73 KB |
225 | static inline enum pqi_ctrl_mode pqi_get_ctrl_mode( |
226 | struct pqi_ctrl_info *ctrl_info) | |
227 | { | |
228 | return sis_read_driver_scratch(ctrl_info); | |
229 | } | |
230 | ||
231 | static inline void pqi_save_ctrl_mode(struct pqi_ctrl_info *ctrl_info, | |
232 | enum pqi_ctrl_mode mode) | |
233 | { | |
234 | sis_write_driver_scratch(ctrl_info, mode); | |
235 | } | |
236 | ||
7561a7e4 KB |
237 | static inline void pqi_ctrl_block_requests(struct pqi_ctrl_info *ctrl_info) |
238 | { | |
239 | ctrl_info->block_requests = true; | |
240 | scsi_block_requests(ctrl_info->scsi_host); | |
241 | } | |
242 | ||
243 | static inline void pqi_ctrl_unblock_requests(struct pqi_ctrl_info *ctrl_info) | |
244 | { | |
245 | ctrl_info->block_requests = false; | |
246 | wake_up_all(&ctrl_info->block_requests_wait); | |
376fb880 | 247 | pqi_retry_raid_bypass_requests(ctrl_info); |
7561a7e4 KB |
248 | scsi_unblock_requests(ctrl_info->scsi_host); |
249 | } | |
250 | ||
251 | static inline bool pqi_ctrl_blocked(struct pqi_ctrl_info *ctrl_info) | |
252 | { | |
253 | return ctrl_info->block_requests; | |
254 | } | |
255 | ||
256 | static unsigned long pqi_wait_if_ctrl_blocked(struct pqi_ctrl_info *ctrl_info, | |
257 | unsigned long timeout_msecs) | |
258 | { | |
259 | unsigned long remaining_msecs; | |
260 | ||
261 | if (!pqi_ctrl_blocked(ctrl_info)) | |
262 | return timeout_msecs; | |
263 | ||
264 | atomic_inc(&ctrl_info->num_blocked_threads); | |
265 | ||
266 | if (timeout_msecs == NO_TIMEOUT) { | |
267 | wait_event(ctrl_info->block_requests_wait, | |
268 | !pqi_ctrl_blocked(ctrl_info)); | |
269 | remaining_msecs = timeout_msecs; | |
270 | } else { | |
271 | unsigned long remaining_jiffies; | |
272 | ||
273 | remaining_jiffies = | |
274 | wait_event_timeout(ctrl_info->block_requests_wait, | |
275 | !pqi_ctrl_blocked(ctrl_info), | |
276 | msecs_to_jiffies(timeout_msecs)); | |
277 | remaining_msecs = jiffies_to_msecs(remaining_jiffies); | |
278 | } | |
279 | ||
280 | atomic_dec(&ctrl_info->num_blocked_threads); | |
281 | ||
282 | return remaining_msecs; | |
283 | } | |
284 | ||
285 | static inline void pqi_ctrl_busy(struct pqi_ctrl_info *ctrl_info) | |
286 | { | |
287 | atomic_inc(&ctrl_info->num_busy_threads); | |
288 | } | |
289 | ||
290 | static inline void pqi_ctrl_unbusy(struct pqi_ctrl_info *ctrl_info) | |
291 | { | |
292 | atomic_dec(&ctrl_info->num_busy_threads); | |
293 | } | |
294 | ||
295 | static inline void pqi_ctrl_wait_until_quiesced(struct pqi_ctrl_info *ctrl_info) | |
296 | { | |
297 | while (atomic_read(&ctrl_info->num_busy_threads) > | |
298 | atomic_read(&ctrl_info->num_blocked_threads)) | |
299 | usleep_range(1000, 2000); | |
300 | } | |
301 | ||
03b288cf KB |
302 | static inline bool pqi_device_offline(struct pqi_scsi_dev *device) |
303 | { | |
304 | return device->device_offline; | |
305 | } | |
306 | ||
7561a7e4 KB |
307 | static inline void pqi_device_reset_start(struct pqi_scsi_dev *device) |
308 | { | |
309 | device->in_reset = true; | |
310 | } | |
311 | ||
312 | static inline void pqi_device_reset_done(struct pqi_scsi_dev *device) | |
313 | { | |
314 | device->in_reset = false; | |
315 | } | |
316 | ||
317 | static inline bool pqi_device_in_reset(struct pqi_scsi_dev *device) | |
318 | { | |
319 | return device->in_reset; | |
320 | } | |
6c223761 | 321 | |
1e46731e MR |
322 | static inline void pqi_device_remove_start(struct pqi_scsi_dev *device) |
323 | { | |
324 | device->in_remove = true; | |
325 | } | |
326 | ||
327 | static inline bool pqi_device_in_remove(struct pqi_ctrl_info *ctrl_info, | |
328 | struct pqi_scsi_dev *device) | |
329 | { | |
330 | return device->in_remove & !ctrl_info->in_shutdown; | |
331 | } | |
332 | ||
5f310425 KB |
333 | static inline void pqi_schedule_rescan_worker_with_delay( |
334 | struct pqi_ctrl_info *ctrl_info, unsigned long delay) | |
335 | { | |
336 | if (pqi_ctrl_offline(ctrl_info)) | |
337 | return; | |
338 | ||
339 | schedule_delayed_work(&ctrl_info->rescan_work, delay); | |
340 | } | |
341 | ||
6c223761 KB |
342 | static inline void pqi_schedule_rescan_worker(struct pqi_ctrl_info *ctrl_info) |
343 | { | |
5f310425 KB |
344 | pqi_schedule_rescan_worker_with_delay(ctrl_info, 0); |
345 | } | |
346 | ||
347 | #define PQI_RESCAN_WORK_DELAY (10 * HZ) | |
348 | ||
349 | static inline void pqi_schedule_rescan_worker_delayed( | |
350 | struct pqi_ctrl_info *ctrl_info) | |
351 | { | |
352 | pqi_schedule_rescan_worker_with_delay(ctrl_info, PQI_RESCAN_WORK_DELAY); | |
6c223761 KB |
353 | } |
354 | ||
061ef06a KB |
355 | static inline void pqi_cancel_rescan_worker(struct pqi_ctrl_info *ctrl_info) |
356 | { | |
357 | cancel_delayed_work_sync(&ctrl_info->rescan_work); | |
358 | } | |
359 | ||
98f87667 KB |
360 | static inline u32 pqi_read_heartbeat_counter(struct pqi_ctrl_info *ctrl_info) |
361 | { | |
362 | if (!ctrl_info->heartbeat_counter) | |
363 | return 0; | |
364 | ||
365 | return readl(ctrl_info->heartbeat_counter); | |
366 | } | |
367 | ||
6c223761 KB |
368 | static int pqi_map_single(struct pci_dev *pci_dev, |
369 | struct pqi_sg_descriptor *sg_descriptor, void *buffer, | |
6917a9cc | 370 | size_t buffer_length, enum dma_data_direction data_direction) |
6c223761 KB |
371 | { |
372 | dma_addr_t bus_address; | |
373 | ||
6917a9cc | 374 | if (!buffer || buffer_length == 0 || data_direction == DMA_NONE) |
6c223761 KB |
375 | return 0; |
376 | ||
6917a9cc | 377 | bus_address = dma_map_single(&pci_dev->dev, buffer, buffer_length, |
6c223761 | 378 | data_direction); |
6917a9cc | 379 | if (dma_mapping_error(&pci_dev->dev, bus_address)) |
6c223761 KB |
380 | return -ENOMEM; |
381 | ||
382 | put_unaligned_le64((u64)bus_address, &sg_descriptor->address); | |
383 | put_unaligned_le32(buffer_length, &sg_descriptor->length); | |
384 | put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags); | |
385 | ||
386 | return 0; | |
387 | } | |
388 | ||
389 | static void pqi_pci_unmap(struct pci_dev *pci_dev, | |
390 | struct pqi_sg_descriptor *descriptors, int num_descriptors, | |
6917a9cc | 391 | enum dma_data_direction data_direction) |
6c223761 KB |
392 | { |
393 | int i; | |
394 | ||
6917a9cc | 395 | if (data_direction == DMA_NONE) |
6c223761 KB |
396 | return; |
397 | ||
398 | for (i = 0; i < num_descriptors; i++) | |
6917a9cc | 399 | dma_unmap_single(&pci_dev->dev, |
6c223761 KB |
400 | (dma_addr_t)get_unaligned_le64(&descriptors[i].address), |
401 | get_unaligned_le32(&descriptors[i].length), | |
402 | data_direction); | |
403 | } | |
404 | ||
405 | static int pqi_build_raid_path_request(struct pqi_ctrl_info *ctrl_info, | |
406 | struct pqi_raid_path_request *request, u8 cmd, | |
407 | u8 *scsi3addr, void *buffer, size_t buffer_length, | |
6917a9cc | 408 | u16 vpd_page, enum dma_data_direction *dir) |
6c223761 KB |
409 | { |
410 | u8 *cdb; | |
171c2865 | 411 | size_t cdb_length = buffer_length; |
6c223761 KB |
412 | |
413 | memset(request, 0, sizeof(*request)); | |
414 | ||
415 | request->header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO; | |
416 | put_unaligned_le16(offsetof(struct pqi_raid_path_request, | |
417 | sg_descriptors[1]) - PQI_REQUEST_HEADER_LENGTH, | |
418 | &request->header.iu_length); | |
419 | put_unaligned_le32(buffer_length, &request->buffer_length); | |
420 | memcpy(request->lun_number, scsi3addr, sizeof(request->lun_number)); | |
421 | request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; | |
422 | request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0; | |
423 | ||
424 | cdb = request->cdb; | |
425 | ||
426 | switch (cmd) { | |
427 | case INQUIRY: | |
428 | request->data_direction = SOP_READ_FLAG; | |
429 | cdb[0] = INQUIRY; | |
430 | if (vpd_page & VPD_PAGE) { | |
431 | cdb[1] = 0x1; | |
432 | cdb[2] = (u8)vpd_page; | |
433 | } | |
171c2865 | 434 | cdb[4] = (u8)cdb_length; |
6c223761 KB |
435 | break; |
436 | case CISS_REPORT_LOG: | |
437 | case CISS_REPORT_PHYS: | |
438 | request->data_direction = SOP_READ_FLAG; | |
439 | cdb[0] = cmd; | |
440 | if (cmd == CISS_REPORT_PHYS) | |
441 | cdb[1] = CISS_REPORT_PHYS_EXTENDED; | |
442 | else | |
443 | cdb[1] = CISS_REPORT_LOG_EXTENDED; | |
171c2865 | 444 | put_unaligned_be32(cdb_length, &cdb[6]); |
6c223761 KB |
445 | break; |
446 | case CISS_GET_RAID_MAP: | |
447 | request->data_direction = SOP_READ_FLAG; | |
448 | cdb[0] = CISS_READ; | |
449 | cdb[1] = CISS_GET_RAID_MAP; | |
171c2865 | 450 | put_unaligned_be32(cdb_length, &cdb[6]); |
6c223761 | 451 | break; |
58322fe0 | 452 | case SA_FLUSH_CACHE: |
6c223761 KB |
453 | request->data_direction = SOP_WRITE_FLAG; |
454 | cdb[0] = BMIC_WRITE; | |
58322fe0 | 455 | cdb[6] = BMIC_FLUSH_CACHE; |
171c2865 | 456 | put_unaligned_be16(cdb_length, &cdb[7]); |
6c223761 | 457 | break; |
171c2865 DC |
458 | case BMIC_SENSE_DIAG_OPTIONS: |
459 | cdb_length = 0; | |
6c223761 KB |
460 | case BMIC_IDENTIFY_CONTROLLER: |
461 | case BMIC_IDENTIFY_PHYSICAL_DEVICE: | |
462 | request->data_direction = SOP_READ_FLAG; | |
463 | cdb[0] = BMIC_READ; | |
464 | cdb[6] = cmd; | |
171c2865 | 465 | put_unaligned_be16(cdb_length, &cdb[7]); |
6c223761 | 466 | break; |
171c2865 DC |
467 | case BMIC_SET_DIAG_OPTIONS: |
468 | cdb_length = 0; | |
6c223761 KB |
469 | case BMIC_WRITE_HOST_WELLNESS: |
470 | request->data_direction = SOP_WRITE_FLAG; | |
471 | cdb[0] = BMIC_WRITE; | |
472 | cdb[6] = cmd; | |
171c2865 | 473 | put_unaligned_be16(cdb_length, &cdb[7]); |
6c223761 KB |
474 | break; |
475 | default: | |
476 | dev_err(&ctrl_info->pci_dev->dev, "unknown command 0x%c\n", | |
477 | cmd); | |
6c223761 KB |
478 | break; |
479 | } | |
480 | ||
481 | switch (request->data_direction) { | |
482 | case SOP_READ_FLAG: | |
6917a9cc | 483 | *dir = DMA_FROM_DEVICE; |
6c223761 KB |
484 | break; |
485 | case SOP_WRITE_FLAG: | |
6917a9cc | 486 | *dir = DMA_TO_DEVICE; |
6c223761 KB |
487 | break; |
488 | case SOP_NO_DIRECTION_FLAG: | |
6917a9cc | 489 | *dir = DMA_NONE; |
6c223761 KB |
490 | break; |
491 | default: | |
6917a9cc | 492 | *dir = DMA_BIDIRECTIONAL; |
6c223761 KB |
493 | break; |
494 | } | |
495 | ||
6c223761 | 496 | return pqi_map_single(ctrl_info->pci_dev, &request->sg_descriptors[0], |
6917a9cc | 497 | buffer, buffer_length, *dir); |
6c223761 KB |
498 | } |
499 | ||
376fb880 KB |
500 | static inline void pqi_reinit_io_request(struct pqi_io_request *io_request) |
501 | { | |
502 | io_request->scmd = NULL; | |
503 | io_request->status = 0; | |
504 | io_request->error_info = NULL; | |
505 | io_request->raid_bypass = false; | |
506 | } | |
507 | ||
6c223761 KB |
508 | static struct pqi_io_request *pqi_alloc_io_request( |
509 | struct pqi_ctrl_info *ctrl_info) | |
510 | { | |
511 | struct pqi_io_request *io_request; | |
512 | u16 i = ctrl_info->next_io_request_slot; /* benignly racy */ | |
513 | ||
514 | while (1) { | |
515 | io_request = &ctrl_info->io_request_pool[i]; | |
516 | if (atomic_inc_return(&io_request->refcount) == 1) | |
517 | break; | |
518 | atomic_dec(&io_request->refcount); | |
519 | i = (i + 1) % ctrl_info->max_io_slots; | |
520 | } | |
521 | ||
522 | /* benignly racy */ | |
523 | ctrl_info->next_io_request_slot = (i + 1) % ctrl_info->max_io_slots; | |
524 | ||
376fb880 | 525 | pqi_reinit_io_request(io_request); |
6c223761 KB |
526 | |
527 | return io_request; | |
528 | } | |
529 | ||
530 | static void pqi_free_io_request(struct pqi_io_request *io_request) | |
531 | { | |
532 | atomic_dec(&io_request->refcount); | |
533 | } | |
534 | ||
02133b68 DC |
535 | static int pqi_send_scsi_raid_request(struct pqi_ctrl_info *ctrl_info, u8 cmd, |
536 | u8 *scsi3addr, void *buffer, size_t buffer_length, u16 vpd_page, | |
537 | struct pqi_raid_error_info *error_info, | |
538 | unsigned long timeout_msecs) | |
6c223761 KB |
539 | { |
540 | int rc; | |
6917a9cc | 541 | enum dma_data_direction dir; |
6c223761 KB |
542 | struct pqi_raid_path_request request; |
543 | ||
544 | rc = pqi_build_raid_path_request(ctrl_info, &request, | |
02133b68 DC |
545 | cmd, scsi3addr, buffer, |
546 | buffer_length, vpd_page, &dir); | |
6c223761 KB |
547 | if (rc) |
548 | return rc; | |
549 | ||
02133b68 DC |
550 | rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, |
551 | 0, error_info, timeout_msecs); | |
6c223761 | 552 | |
6917a9cc | 553 | pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir); |
6c223761 KB |
554 | return rc; |
555 | } | |
556 | ||
02133b68 DC |
557 | /* Helper functions for pqi_send_scsi_raid_request */ |
558 | ||
559 | static inline int pqi_send_ctrl_raid_request(struct pqi_ctrl_info *ctrl_info, | |
560 | u8 cmd, void *buffer, size_t buffer_length) | |
6c223761 | 561 | { |
02133b68 DC |
562 | return pqi_send_scsi_raid_request(ctrl_info, cmd, RAID_CTLR_LUNID, |
563 | buffer, buffer_length, 0, NULL, NO_TIMEOUT); | |
564 | } | |
6c223761 | 565 | |
02133b68 DC |
566 | static inline int pqi_send_ctrl_raid_with_error(struct pqi_ctrl_info *ctrl_info, |
567 | u8 cmd, void *buffer, size_t buffer_length, | |
568 | struct pqi_raid_error_info *error_info) | |
569 | { | |
570 | return pqi_send_scsi_raid_request(ctrl_info, cmd, RAID_CTLR_LUNID, | |
571 | buffer, buffer_length, 0, error_info, NO_TIMEOUT); | |
572 | } | |
6c223761 | 573 | |
6c223761 | 574 | |
02133b68 DC |
575 | static inline int pqi_identify_controller(struct pqi_ctrl_info *ctrl_info, |
576 | struct bmic_identify_controller *buffer) | |
577 | { | |
578 | return pqi_send_ctrl_raid_request(ctrl_info, BMIC_IDENTIFY_CONTROLLER, | |
579 | buffer, sizeof(*buffer)); | |
580 | } | |
581 | ||
582 | static inline int pqi_scsi_inquiry(struct pqi_ctrl_info *ctrl_info, | |
583 | u8 *scsi3addr, u16 vpd_page, void *buffer, size_t buffer_length) | |
584 | { | |
585 | return pqi_send_scsi_raid_request(ctrl_info, INQUIRY, scsi3addr, | |
586 | buffer, buffer_length, vpd_page, NULL, NO_TIMEOUT); | |
6c223761 KB |
587 | } |
588 | ||
cd128244 DC |
589 | static bool pqi_vpd_page_supported(struct pqi_ctrl_info *ctrl_info, |
590 | u8 *scsi3addr, u16 vpd_page) | |
591 | { | |
592 | int rc; | |
593 | int i; | |
594 | int pages; | |
595 | unsigned char *buf, bufsize; | |
596 | ||
597 | buf = kzalloc(256, GFP_KERNEL); | |
598 | if (!buf) | |
599 | return false; | |
600 | ||
601 | /* Get the size of the page list first */ | |
602 | rc = pqi_scsi_inquiry(ctrl_info, scsi3addr, | |
603 | VPD_PAGE | SCSI_VPD_SUPPORTED_PAGES, | |
604 | buf, SCSI_VPD_HEADER_SZ); | |
605 | if (rc != 0) | |
606 | goto exit_unsupported; | |
607 | ||
608 | pages = buf[3]; | |
609 | if ((pages + SCSI_VPD_HEADER_SZ) <= 255) | |
610 | bufsize = pages + SCSI_VPD_HEADER_SZ; | |
611 | else | |
612 | bufsize = 255; | |
613 | ||
614 | /* Get the whole VPD page list */ | |
615 | rc = pqi_scsi_inquiry(ctrl_info, scsi3addr, | |
616 | VPD_PAGE | SCSI_VPD_SUPPORTED_PAGES, | |
617 | buf, bufsize); | |
618 | if (rc != 0) | |
619 | goto exit_unsupported; | |
620 | ||
621 | pages = buf[3]; | |
622 | for (i = 1; i <= pages; i++) | |
623 | if (buf[3 + i] == vpd_page) | |
624 | goto exit_supported; | |
625 | ||
626 | exit_unsupported: | |
627 | kfree(buf); | |
628 | return false; | |
629 | ||
630 | exit_supported: | |
631 | kfree(buf); | |
632 | return true; | |
633 | } | |
634 | ||
635 | static int pqi_get_device_id(struct pqi_ctrl_info *ctrl_info, | |
636 | u8 *scsi3addr, u8 *device_id, int buflen) | |
637 | { | |
638 | int rc; | |
639 | unsigned char *buf; | |
640 | ||
641 | if (!pqi_vpd_page_supported(ctrl_info, scsi3addr, SCSI_VPD_DEVICE_ID)) | |
642 | return 1; /* function not supported */ | |
643 | ||
644 | buf = kzalloc(64, GFP_KERNEL); | |
645 | if (!buf) | |
646 | return -ENOMEM; | |
647 | ||
648 | rc = pqi_scsi_inquiry(ctrl_info, scsi3addr, | |
649 | VPD_PAGE | SCSI_VPD_DEVICE_ID, | |
650 | buf, 64); | |
651 | if (rc == 0) { | |
652 | if (buflen > 16) | |
653 | buflen = 16; | |
654 | memcpy(device_id, &buf[SCSI_VPD_DEVICE_ID_IDX], buflen); | |
655 | } | |
656 | ||
657 | kfree(buf); | |
658 | ||
659 | return rc; | |
660 | } | |
661 | ||
6c223761 KB |
662 | static int pqi_identify_physical_device(struct pqi_ctrl_info *ctrl_info, |
663 | struct pqi_scsi_dev *device, | |
664 | struct bmic_identify_physical_device *buffer, | |
665 | size_t buffer_length) | |
666 | { | |
667 | int rc; | |
6917a9cc | 668 | enum dma_data_direction dir; |
6c223761 KB |
669 | u16 bmic_device_index; |
670 | struct pqi_raid_path_request request; | |
671 | ||
672 | rc = pqi_build_raid_path_request(ctrl_info, &request, | |
673 | BMIC_IDENTIFY_PHYSICAL_DEVICE, RAID_CTLR_LUNID, buffer, | |
6917a9cc | 674 | buffer_length, 0, &dir); |
6c223761 KB |
675 | if (rc) |
676 | return rc; | |
677 | ||
678 | bmic_device_index = CISS_GET_DRIVE_NUMBER(device->scsi3addr); | |
679 | request.cdb[2] = (u8)bmic_device_index; | |
680 | request.cdb[9] = (u8)(bmic_device_index >> 8); | |
681 | ||
682 | rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, | |
683 | 0, NULL, NO_TIMEOUT); | |
684 | ||
6917a9cc | 685 | pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir); |
6c223761 KB |
686 | return rc; |
687 | } | |
688 | ||
58322fe0 KB |
689 | static int pqi_flush_cache(struct pqi_ctrl_info *ctrl_info, |
690 | enum bmic_flush_cache_shutdown_event shutdown_event) | |
6c223761 KB |
691 | { |
692 | int rc; | |
58322fe0 | 693 | struct bmic_flush_cache *flush_cache; |
6c223761 KB |
694 | |
695 | /* | |
696 | * Don't bother trying to flush the cache if the controller is | |
697 | * locked up. | |
698 | */ | |
699 | if (pqi_ctrl_offline(ctrl_info)) | |
700 | return -ENXIO; | |
701 | ||
58322fe0 KB |
702 | flush_cache = kzalloc(sizeof(*flush_cache), GFP_KERNEL); |
703 | if (!flush_cache) | |
6c223761 KB |
704 | return -ENOMEM; |
705 | ||
58322fe0 KB |
706 | flush_cache->shutdown_event = shutdown_event; |
707 | ||
02133b68 DC |
708 | rc = pqi_send_ctrl_raid_request(ctrl_info, SA_FLUSH_CACHE, flush_cache, |
709 | sizeof(*flush_cache)); | |
6c223761 | 710 | |
58322fe0 | 711 | kfree(flush_cache); |
6c223761 KB |
712 | |
713 | return rc; | |
714 | } | |
715 | ||
171c2865 DC |
716 | |
717 | #define PQI_FETCH_PTRAID_DATA (1UL<<31) | |
718 | ||
719 | static int pqi_set_diag_rescan(struct pqi_ctrl_info *ctrl_info) | |
720 | { | |
721 | int rc; | |
171c2865 | 722 | struct bmic_diag_options *diag; |
171c2865 DC |
723 | |
724 | diag = kzalloc(sizeof(*diag), GFP_KERNEL); | |
725 | if (!diag) | |
726 | return -ENOMEM; | |
727 | ||
02133b68 DC |
728 | rc = pqi_send_ctrl_raid_request(ctrl_info, BMIC_SENSE_DIAG_OPTIONS, |
729 | diag, sizeof(*diag)); | |
171c2865 DC |
730 | if (rc) |
731 | goto out; | |
732 | ||
733 | diag->options |= cpu_to_le32(PQI_FETCH_PTRAID_DATA); | |
734 | ||
02133b68 DC |
735 | rc = pqi_send_ctrl_raid_request(ctrl_info, BMIC_SET_DIAG_OPTIONS, |
736 | diag, sizeof(*diag)); | |
171c2865 DC |
737 | out: |
738 | kfree(diag); | |
739 | ||
740 | return rc; | |
741 | } | |
742 | ||
02133b68 | 743 | static inline int pqi_write_host_wellness(struct pqi_ctrl_info *ctrl_info, |
6c223761 KB |
744 | void *buffer, size_t buffer_length) |
745 | { | |
02133b68 DC |
746 | return pqi_send_ctrl_raid_request(ctrl_info, BMIC_WRITE_HOST_WELLNESS, |
747 | buffer, buffer_length); | |
6c223761 KB |
748 | } |
749 | ||
750 | #pragma pack(1) | |
751 | ||
752 | struct bmic_host_wellness_driver_version { | |
753 | u8 start_tag[4]; | |
754 | u8 driver_version_tag[2]; | |
755 | __le16 driver_version_length; | |
756 | char driver_version[32]; | |
b2346b50 | 757 | u8 dont_write_tag[2]; |
6c223761 KB |
758 | u8 end_tag[2]; |
759 | }; | |
760 | ||
761 | #pragma pack() | |
762 | ||
763 | static int pqi_write_driver_version_to_host_wellness( | |
764 | struct pqi_ctrl_info *ctrl_info) | |
765 | { | |
766 | int rc; | |
767 | struct bmic_host_wellness_driver_version *buffer; | |
768 | size_t buffer_length; | |
769 | ||
770 | buffer_length = sizeof(*buffer); | |
771 | ||
772 | buffer = kmalloc(buffer_length, GFP_KERNEL); | |
773 | if (!buffer) | |
774 | return -ENOMEM; | |
775 | ||
776 | buffer->start_tag[0] = '<'; | |
777 | buffer->start_tag[1] = 'H'; | |
778 | buffer->start_tag[2] = 'W'; | |
779 | buffer->start_tag[3] = '>'; | |
780 | buffer->driver_version_tag[0] = 'D'; | |
781 | buffer->driver_version_tag[1] = 'V'; | |
782 | put_unaligned_le16(sizeof(buffer->driver_version), | |
783 | &buffer->driver_version_length); | |
061ef06a | 784 | strncpy(buffer->driver_version, "Linux " DRIVER_VERSION, |
6c223761 KB |
785 | sizeof(buffer->driver_version) - 1); |
786 | buffer->driver_version[sizeof(buffer->driver_version) - 1] = '\0'; | |
b2346b50 MR |
787 | buffer->dont_write_tag[0] = 'D'; |
788 | buffer->dont_write_tag[1] = 'W'; | |
6c223761 KB |
789 | buffer->end_tag[0] = 'Z'; |
790 | buffer->end_tag[1] = 'Z'; | |
791 | ||
792 | rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length); | |
793 | ||
794 | kfree(buffer); | |
795 | ||
796 | return rc; | |
797 | } | |
798 | ||
799 | #pragma pack(1) | |
800 | ||
801 | struct bmic_host_wellness_time { | |
802 | u8 start_tag[4]; | |
803 | u8 time_tag[2]; | |
804 | __le16 time_length; | |
805 | u8 time[8]; | |
806 | u8 dont_write_tag[2]; | |
807 | u8 end_tag[2]; | |
808 | }; | |
809 | ||
810 | #pragma pack() | |
811 | ||
812 | static int pqi_write_current_time_to_host_wellness( | |
813 | struct pqi_ctrl_info *ctrl_info) | |
814 | { | |
815 | int rc; | |
816 | struct bmic_host_wellness_time *buffer; | |
817 | size_t buffer_length; | |
818 | time64_t local_time; | |
819 | unsigned int year; | |
ed10858e | 820 | struct tm tm; |
6c223761 KB |
821 | |
822 | buffer_length = sizeof(*buffer); | |
823 | ||
824 | buffer = kmalloc(buffer_length, GFP_KERNEL); | |
825 | if (!buffer) | |
826 | return -ENOMEM; | |
827 | ||
828 | buffer->start_tag[0] = '<'; | |
829 | buffer->start_tag[1] = 'H'; | |
830 | buffer->start_tag[2] = 'W'; | |
831 | buffer->start_tag[3] = '>'; | |
832 | buffer->time_tag[0] = 'T'; | |
833 | buffer->time_tag[1] = 'D'; | |
834 | put_unaligned_le16(sizeof(buffer->time), | |
835 | &buffer->time_length); | |
836 | ||
ed10858e AB |
837 | local_time = ktime_get_real_seconds(); |
838 | time64_to_tm(local_time, -sys_tz.tz_minuteswest * 60, &tm); | |
6c223761 KB |
839 | year = tm.tm_year + 1900; |
840 | ||
841 | buffer->time[0] = bin2bcd(tm.tm_hour); | |
842 | buffer->time[1] = bin2bcd(tm.tm_min); | |
843 | buffer->time[2] = bin2bcd(tm.tm_sec); | |
844 | buffer->time[3] = 0; | |
845 | buffer->time[4] = bin2bcd(tm.tm_mon + 1); | |
846 | buffer->time[5] = bin2bcd(tm.tm_mday); | |
847 | buffer->time[6] = bin2bcd(year / 100); | |
848 | buffer->time[7] = bin2bcd(year % 100); | |
849 | ||
850 | buffer->dont_write_tag[0] = 'D'; | |
851 | buffer->dont_write_tag[1] = 'W'; | |
852 | buffer->end_tag[0] = 'Z'; | |
853 | buffer->end_tag[1] = 'Z'; | |
854 | ||
855 | rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length); | |
856 | ||
857 | kfree(buffer); | |
858 | ||
859 | return rc; | |
860 | } | |
861 | ||
862 | #define PQI_UPDATE_TIME_WORK_INTERVAL (24UL * 60 * 60 * HZ) | |
863 | ||
864 | static void pqi_update_time_worker(struct work_struct *work) | |
865 | { | |
866 | int rc; | |
867 | struct pqi_ctrl_info *ctrl_info; | |
868 | ||
869 | ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info, | |
870 | update_time_work); | |
871 | ||
5f310425 KB |
872 | if (pqi_ctrl_offline(ctrl_info)) |
873 | return; | |
874 | ||
6c223761 KB |
875 | rc = pqi_write_current_time_to_host_wellness(ctrl_info); |
876 | if (rc) | |
877 | dev_warn(&ctrl_info->pci_dev->dev, | |
878 | "error updating time on controller\n"); | |
879 | ||
880 | schedule_delayed_work(&ctrl_info->update_time_work, | |
881 | PQI_UPDATE_TIME_WORK_INTERVAL); | |
882 | } | |
883 | ||
884 | static inline void pqi_schedule_update_time_worker( | |
4fbebf1a | 885 | struct pqi_ctrl_info *ctrl_info) |
6c223761 | 886 | { |
4fbebf1a | 887 | schedule_delayed_work(&ctrl_info->update_time_work, 0); |
061ef06a KB |
888 | } |
889 | ||
890 | static inline void pqi_cancel_update_time_worker( | |
891 | struct pqi_ctrl_info *ctrl_info) | |
892 | { | |
061ef06a | 893 | cancel_delayed_work_sync(&ctrl_info->update_time_work); |
6c223761 KB |
894 | } |
895 | ||
02133b68 | 896 | static inline int pqi_report_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd, |
6c223761 KB |
897 | void *buffer, size_t buffer_length) |
898 | { | |
02133b68 DC |
899 | return pqi_send_ctrl_raid_request(ctrl_info, cmd, buffer, |
900 | buffer_length); | |
6c223761 KB |
901 | } |
902 | ||
903 | static int pqi_report_phys_logical_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd, | |
904 | void **buffer) | |
905 | { | |
906 | int rc; | |
907 | size_t lun_list_length; | |
908 | size_t lun_data_length; | |
909 | size_t new_lun_list_length; | |
910 | void *lun_data = NULL; | |
911 | struct report_lun_header *report_lun_header; | |
912 | ||
913 | report_lun_header = kmalloc(sizeof(*report_lun_header), GFP_KERNEL); | |
914 | if (!report_lun_header) { | |
915 | rc = -ENOMEM; | |
916 | goto out; | |
917 | } | |
918 | ||
919 | rc = pqi_report_luns(ctrl_info, cmd, report_lun_header, | |
920 | sizeof(*report_lun_header)); | |
921 | if (rc) | |
922 | goto out; | |
923 | ||
924 | lun_list_length = get_unaligned_be32(&report_lun_header->list_length); | |
925 | ||
926 | again: | |
927 | lun_data_length = sizeof(struct report_lun_header) + lun_list_length; | |
928 | ||
929 | lun_data = kmalloc(lun_data_length, GFP_KERNEL); | |
930 | if (!lun_data) { | |
931 | rc = -ENOMEM; | |
932 | goto out; | |
933 | } | |
934 | ||
935 | if (lun_list_length == 0) { | |
936 | memcpy(lun_data, report_lun_header, sizeof(*report_lun_header)); | |
937 | goto out; | |
938 | } | |
939 | ||
940 | rc = pqi_report_luns(ctrl_info, cmd, lun_data, lun_data_length); | |
941 | if (rc) | |
942 | goto out; | |
943 | ||
944 | new_lun_list_length = get_unaligned_be32( | |
945 | &((struct report_lun_header *)lun_data)->list_length); | |
946 | ||
947 | if (new_lun_list_length > lun_list_length) { | |
948 | lun_list_length = new_lun_list_length; | |
949 | kfree(lun_data); | |
950 | goto again; | |
951 | } | |
952 | ||
953 | out: | |
954 | kfree(report_lun_header); | |
955 | ||
956 | if (rc) { | |
957 | kfree(lun_data); | |
958 | lun_data = NULL; | |
959 | } | |
960 | ||
961 | *buffer = lun_data; | |
962 | ||
963 | return rc; | |
964 | } | |
965 | ||
966 | static inline int pqi_report_phys_luns(struct pqi_ctrl_info *ctrl_info, | |
967 | void **buffer) | |
968 | { | |
969 | return pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_PHYS, | |
970 | buffer); | |
971 | } | |
972 | ||
973 | static inline int pqi_report_logical_luns(struct pqi_ctrl_info *ctrl_info, | |
974 | void **buffer) | |
975 | { | |
976 | return pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_LOG, buffer); | |
977 | } | |
978 | ||
979 | static int pqi_get_device_lists(struct pqi_ctrl_info *ctrl_info, | |
980 | struct report_phys_lun_extended **physdev_list, | |
981 | struct report_log_lun_extended **logdev_list) | |
982 | { | |
983 | int rc; | |
984 | size_t logdev_list_length; | |
985 | size_t logdev_data_length; | |
986 | struct report_log_lun_extended *internal_logdev_list; | |
987 | struct report_log_lun_extended *logdev_data; | |
988 | struct report_lun_header report_lun_header; | |
989 | ||
990 | rc = pqi_report_phys_luns(ctrl_info, (void **)physdev_list); | |
991 | if (rc) | |
992 | dev_err(&ctrl_info->pci_dev->dev, | |
993 | "report physical LUNs failed\n"); | |
994 | ||
995 | rc = pqi_report_logical_luns(ctrl_info, (void **)logdev_list); | |
996 | if (rc) | |
997 | dev_err(&ctrl_info->pci_dev->dev, | |
998 | "report logical LUNs failed\n"); | |
999 | ||
1000 | /* | |
1001 | * Tack the controller itself onto the end of the logical device list. | |
1002 | */ | |
1003 | ||
1004 | logdev_data = *logdev_list; | |
1005 | ||
1006 | if (logdev_data) { | |
1007 | logdev_list_length = | |
1008 | get_unaligned_be32(&logdev_data->header.list_length); | |
1009 | } else { | |
1010 | memset(&report_lun_header, 0, sizeof(report_lun_header)); | |
1011 | logdev_data = | |
1012 | (struct report_log_lun_extended *)&report_lun_header; | |
1013 | logdev_list_length = 0; | |
1014 | } | |
1015 | ||
1016 | logdev_data_length = sizeof(struct report_lun_header) + | |
1017 | logdev_list_length; | |
1018 | ||
1019 | internal_logdev_list = kmalloc(logdev_data_length + | |
1020 | sizeof(struct report_log_lun_extended), GFP_KERNEL); | |
1021 | if (!internal_logdev_list) { | |
1022 | kfree(*logdev_list); | |
1023 | *logdev_list = NULL; | |
1024 | return -ENOMEM; | |
1025 | } | |
1026 | ||
1027 | memcpy(internal_logdev_list, logdev_data, logdev_data_length); | |
1028 | memset((u8 *)internal_logdev_list + logdev_data_length, 0, | |
1029 | sizeof(struct report_log_lun_extended_entry)); | |
1030 | put_unaligned_be32(logdev_list_length + | |
1031 | sizeof(struct report_log_lun_extended_entry), | |
1032 | &internal_logdev_list->header.list_length); | |
1033 | ||
1034 | kfree(*logdev_list); | |
1035 | *logdev_list = internal_logdev_list; | |
1036 | ||
1037 | return 0; | |
1038 | } | |
1039 | ||
1040 | static inline void pqi_set_bus_target_lun(struct pqi_scsi_dev *device, | |
1041 | int bus, int target, int lun) | |
1042 | { | |
1043 | device->bus = bus; | |
1044 | device->target = target; | |
1045 | device->lun = lun; | |
1046 | } | |
1047 | ||
1048 | static void pqi_assign_bus_target_lun(struct pqi_scsi_dev *device) | |
1049 | { | |
1050 | u8 *scsi3addr; | |
1051 | u32 lunid; | |
bd10cf0b KB |
1052 | int bus; |
1053 | int target; | |
1054 | int lun; | |
6c223761 KB |
1055 | |
1056 | scsi3addr = device->scsi3addr; | |
1057 | lunid = get_unaligned_le32(scsi3addr); | |
1058 | ||
1059 | if (pqi_is_hba_lunid(scsi3addr)) { | |
1060 | /* The specified device is the controller. */ | |
1061 | pqi_set_bus_target_lun(device, PQI_HBA_BUS, 0, lunid & 0x3fff); | |
1062 | device->target_lun_valid = true; | |
1063 | return; | |
1064 | } | |
1065 | ||
1066 | if (pqi_is_logical_device(device)) { | |
bd10cf0b KB |
1067 | if (device->is_external_raid_device) { |
1068 | bus = PQI_EXTERNAL_RAID_VOLUME_BUS; | |
1069 | target = (lunid >> 16) & 0x3fff; | |
1070 | lun = lunid & 0xff; | |
1071 | } else { | |
1072 | bus = PQI_RAID_VOLUME_BUS; | |
1073 | target = 0; | |
1074 | lun = lunid & 0x3fff; | |
1075 | } | |
1076 | pqi_set_bus_target_lun(device, bus, target, lun); | |
6c223761 KB |
1077 | device->target_lun_valid = true; |
1078 | return; | |
1079 | } | |
1080 | ||
1081 | /* | |
1082 | * Defer target and LUN assignment for non-controller physical devices | |
1083 | * because the SAS transport layer will make these assignments later. | |
1084 | */ | |
1085 | pqi_set_bus_target_lun(device, PQI_PHYSICAL_DEVICE_BUS, 0, 0); | |
1086 | } | |
1087 | ||
1088 | static void pqi_get_raid_level(struct pqi_ctrl_info *ctrl_info, | |
1089 | struct pqi_scsi_dev *device) | |
1090 | { | |
1091 | int rc; | |
1092 | u8 raid_level; | |
1093 | u8 *buffer; | |
1094 | ||
1095 | raid_level = SA_RAID_UNKNOWN; | |
1096 | ||
1097 | buffer = kmalloc(64, GFP_KERNEL); | |
1098 | if (buffer) { | |
1099 | rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, | |
1100 | VPD_PAGE | CISS_VPD_LV_DEVICE_GEOMETRY, buffer, 64); | |
1101 | if (rc == 0) { | |
1102 | raid_level = buffer[8]; | |
1103 | if (raid_level > SA_RAID_MAX) | |
1104 | raid_level = SA_RAID_UNKNOWN; | |
1105 | } | |
1106 | kfree(buffer); | |
1107 | } | |
1108 | ||
1109 | device->raid_level = raid_level; | |
1110 | } | |
1111 | ||
1112 | static int pqi_validate_raid_map(struct pqi_ctrl_info *ctrl_info, | |
1113 | struct pqi_scsi_dev *device, struct raid_map *raid_map) | |
1114 | { | |
1115 | char *err_msg; | |
1116 | u32 raid_map_size; | |
1117 | u32 r5or6_blocks_per_row; | |
1118 | unsigned int num_phys_disks; | |
1119 | unsigned int num_raid_map_entries; | |
1120 | ||
1121 | raid_map_size = get_unaligned_le32(&raid_map->structure_size); | |
1122 | ||
1123 | if (raid_map_size < offsetof(struct raid_map, disk_data)) { | |
1124 | err_msg = "RAID map too small"; | |
1125 | goto bad_raid_map; | |
1126 | } | |
1127 | ||
1128 | if (raid_map_size > sizeof(*raid_map)) { | |
1129 | err_msg = "RAID map too large"; | |
1130 | goto bad_raid_map; | |
1131 | } | |
1132 | ||
1133 | num_phys_disks = get_unaligned_le16(&raid_map->layout_map_count) * | |
1134 | (get_unaligned_le16(&raid_map->data_disks_per_row) + | |
1135 | get_unaligned_le16(&raid_map->metadata_disks_per_row)); | |
1136 | num_raid_map_entries = num_phys_disks * | |
1137 | get_unaligned_le16(&raid_map->row_cnt); | |
1138 | ||
1139 | if (num_raid_map_entries > RAID_MAP_MAX_ENTRIES) { | |
1140 | err_msg = "invalid number of map entries in RAID map"; | |
1141 | goto bad_raid_map; | |
1142 | } | |
1143 | ||
1144 | if (device->raid_level == SA_RAID_1) { | |
1145 | if (get_unaligned_le16(&raid_map->layout_map_count) != 2) { | |
1146 | err_msg = "invalid RAID-1 map"; | |
1147 | goto bad_raid_map; | |
1148 | } | |
1149 | } else if (device->raid_level == SA_RAID_ADM) { | |
1150 | if (get_unaligned_le16(&raid_map->layout_map_count) != 3) { | |
1151 | err_msg = "invalid RAID-1(ADM) map"; | |
1152 | goto bad_raid_map; | |
1153 | } | |
1154 | } else if ((device->raid_level == SA_RAID_5 || | |
1155 | device->raid_level == SA_RAID_6) && | |
1156 | get_unaligned_le16(&raid_map->layout_map_count) > 1) { | |
1157 | /* RAID 50/60 */ | |
1158 | r5or6_blocks_per_row = | |
1159 | get_unaligned_le16(&raid_map->strip_size) * | |
1160 | get_unaligned_le16(&raid_map->data_disks_per_row); | |
1161 | if (r5or6_blocks_per_row == 0) { | |
1162 | err_msg = "invalid RAID-5 or RAID-6 map"; | |
1163 | goto bad_raid_map; | |
1164 | } | |
1165 | } | |
1166 | ||
1167 | return 0; | |
1168 | ||
1169 | bad_raid_map: | |
d87d5474 | 1170 | dev_warn(&ctrl_info->pci_dev->dev, |
38a7338a KB |
1171 | "logical device %08x%08x %s\n", |
1172 | *((u32 *)&device->scsi3addr), | |
1173 | *((u32 *)&device->scsi3addr[4]), err_msg); | |
6c223761 KB |
1174 | |
1175 | return -EINVAL; | |
1176 | } | |
1177 | ||
1178 | static int pqi_get_raid_map(struct pqi_ctrl_info *ctrl_info, | |
1179 | struct pqi_scsi_dev *device) | |
1180 | { | |
1181 | int rc; | |
6917a9cc | 1182 | enum dma_data_direction dir; |
6c223761 KB |
1183 | struct pqi_raid_path_request request; |
1184 | struct raid_map *raid_map; | |
1185 | ||
1186 | raid_map = kmalloc(sizeof(*raid_map), GFP_KERNEL); | |
1187 | if (!raid_map) | |
1188 | return -ENOMEM; | |
1189 | ||
1190 | rc = pqi_build_raid_path_request(ctrl_info, &request, | |
1191 | CISS_GET_RAID_MAP, device->scsi3addr, raid_map, | |
6917a9cc | 1192 | sizeof(*raid_map), 0, &dir); |
6c223761 KB |
1193 | if (rc) |
1194 | goto error; | |
1195 | ||
1196 | rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, | |
1197 | NULL, NO_TIMEOUT); | |
1198 | ||
6917a9cc | 1199 | pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir); |
6c223761 KB |
1200 | |
1201 | if (rc) | |
1202 | goto error; | |
1203 | ||
1204 | rc = pqi_validate_raid_map(ctrl_info, device, raid_map); | |
1205 | if (rc) | |
1206 | goto error; | |
1207 | ||
1208 | device->raid_map = raid_map; | |
1209 | ||
1210 | return 0; | |
1211 | ||
1212 | error: | |
1213 | kfree(raid_map); | |
1214 | ||
1215 | return rc; | |
1216 | } | |
1217 | ||
588a63fe | 1218 | static void pqi_get_raid_bypass_status(struct pqi_ctrl_info *ctrl_info, |
6c223761 KB |
1219 | struct pqi_scsi_dev *device) |
1220 | { | |
1221 | int rc; | |
1222 | u8 *buffer; | |
588a63fe | 1223 | u8 bypass_status; |
6c223761 KB |
1224 | |
1225 | buffer = kmalloc(64, GFP_KERNEL); | |
1226 | if (!buffer) | |
1227 | return; | |
1228 | ||
1229 | rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, | |
588a63fe | 1230 | VPD_PAGE | CISS_VPD_LV_BYPASS_STATUS, buffer, 64); |
6c223761 KB |
1231 | if (rc) |
1232 | goto out; | |
1233 | ||
588a63fe KB |
1234 | #define RAID_BYPASS_STATUS 4 |
1235 | #define RAID_BYPASS_CONFIGURED 0x1 | |
1236 | #define RAID_BYPASS_ENABLED 0x2 | |
6c223761 | 1237 | |
588a63fe KB |
1238 | bypass_status = buffer[RAID_BYPASS_STATUS]; |
1239 | device->raid_bypass_configured = | |
1240 | (bypass_status & RAID_BYPASS_CONFIGURED) != 0; | |
1241 | if (device->raid_bypass_configured && | |
1242 | (bypass_status & RAID_BYPASS_ENABLED) && | |
1243 | pqi_get_raid_map(ctrl_info, device) == 0) | |
1244 | device->raid_bypass_enabled = true; | |
6c223761 KB |
1245 | |
1246 | out: | |
1247 | kfree(buffer); | |
1248 | } | |
1249 | ||
1250 | /* | |
1251 | * Use vendor-specific VPD to determine online/offline status of a volume. | |
1252 | */ | |
1253 | ||
1254 | static void pqi_get_volume_status(struct pqi_ctrl_info *ctrl_info, | |
1255 | struct pqi_scsi_dev *device) | |
1256 | { | |
1257 | int rc; | |
1258 | size_t page_length; | |
1259 | u8 volume_status = CISS_LV_STATUS_UNAVAILABLE; | |
1260 | bool volume_offline = true; | |
1261 | u32 volume_flags; | |
1262 | struct ciss_vpd_logical_volume_status *vpd; | |
1263 | ||
1264 | vpd = kmalloc(sizeof(*vpd), GFP_KERNEL); | |
1265 | if (!vpd) | |
1266 | goto no_buffer; | |
1267 | ||
1268 | rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, | |
1269 | VPD_PAGE | CISS_VPD_LV_STATUS, vpd, sizeof(*vpd)); | |
1270 | if (rc) | |
1271 | goto out; | |
1272 | ||
1273 | page_length = offsetof(struct ciss_vpd_logical_volume_status, | |
1274 | volume_status) + vpd->page_length; | |
1275 | if (page_length < sizeof(*vpd)) | |
1276 | goto out; | |
1277 | ||
1278 | volume_status = vpd->volume_status; | |
1279 | volume_flags = get_unaligned_be32(&vpd->flags); | |
1280 | volume_offline = (volume_flags & CISS_LV_FLAGS_NO_HOST_IO) != 0; | |
1281 | ||
1282 | out: | |
1283 | kfree(vpd); | |
1284 | no_buffer: | |
1285 | device->volume_status = volume_status; | |
1286 | device->volume_offline = volume_offline; | |
1287 | } | |
1288 | ||
26b390ab KB |
1289 | #define PQI_INQUIRY_PAGE0_RETRIES 3 |
1290 | ||
6c223761 KB |
1291 | static int pqi_get_device_info(struct pqi_ctrl_info *ctrl_info, |
1292 | struct pqi_scsi_dev *device) | |
1293 | { | |
1294 | int rc; | |
1295 | u8 *buffer; | |
26b390ab | 1296 | unsigned int retries; |
6c223761 KB |
1297 | |
1298 | buffer = kmalloc(64, GFP_KERNEL); | |
1299 | if (!buffer) | |
1300 | return -ENOMEM; | |
1301 | ||
1302 | /* Send an inquiry to the device to see what it is. */ | |
26b390ab KB |
1303 | for (retries = 0;;) { |
1304 | rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 0, | |
1305 | buffer, 64); | |
1306 | if (rc == 0) | |
1307 | break; | |
1308 | if (pqi_is_logical_device(device) || | |
1309 | rc != PQI_CMD_STATUS_ABORTED || | |
1310 | ++retries > PQI_INQUIRY_PAGE0_RETRIES) | |
1311 | goto out; | |
1312 | } | |
6c223761 KB |
1313 | |
1314 | scsi_sanitize_inquiry_string(&buffer[8], 8); | |
1315 | scsi_sanitize_inquiry_string(&buffer[16], 16); | |
1316 | ||
1317 | device->devtype = buffer[0] & 0x1f; | |
cbe0c7b1 KB |
1318 | memcpy(device->vendor, &buffer[8], sizeof(device->vendor)); |
1319 | memcpy(device->model, &buffer[16], sizeof(device->model)); | |
6c223761 KB |
1320 | |
1321 | if (pqi_is_logical_device(device) && device->devtype == TYPE_DISK) { | |
bd10cf0b KB |
1322 | if (device->is_external_raid_device) { |
1323 | device->raid_level = SA_RAID_UNKNOWN; | |
1324 | device->volume_status = CISS_LV_OK; | |
1325 | device->volume_offline = false; | |
1326 | } else { | |
1327 | pqi_get_raid_level(ctrl_info, device); | |
588a63fe | 1328 | pqi_get_raid_bypass_status(ctrl_info, device); |
bd10cf0b KB |
1329 | pqi_get_volume_status(ctrl_info, device); |
1330 | } | |
6c223761 KB |
1331 | } |
1332 | ||
cd128244 DC |
1333 | if (pqi_get_device_id(ctrl_info, device->scsi3addr, |
1334 | device->unique_id, sizeof(device->unique_id)) < 0) | |
1335 | dev_warn(&ctrl_info->pci_dev->dev, | |
1336 | "Can't get device id for scsi %d:%d:%d:%d\n", | |
1337 | ctrl_info->scsi_host->host_no, | |
1338 | device->bus, device->target, | |
1339 | device->lun); | |
1340 | ||
6c223761 KB |
1341 | out: |
1342 | kfree(buffer); | |
1343 | ||
1344 | return rc; | |
1345 | } | |
1346 | ||
1347 | static void pqi_get_physical_disk_info(struct pqi_ctrl_info *ctrl_info, | |
1348 | struct pqi_scsi_dev *device, | |
1349 | struct bmic_identify_physical_device *id_phys) | |
1350 | { | |
1351 | int rc; | |
1352 | ||
1353 | memset(id_phys, 0, sizeof(*id_phys)); | |
1354 | ||
1355 | rc = pqi_identify_physical_device(ctrl_info, device, | |
1356 | id_phys, sizeof(*id_phys)); | |
1357 | if (rc) { | |
1358 | device->queue_depth = PQI_PHYSICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH; | |
1359 | return; | |
1360 | } | |
1361 | ||
1362 | device->queue_depth = | |
1363 | get_unaligned_le16(&id_phys->current_queue_depth_limit); | |
1364 | device->device_type = id_phys->device_type; | |
1365 | device->active_path_index = id_phys->active_path_number; | |
1366 | device->path_map = id_phys->redundant_path_present_map; | |
1367 | memcpy(&device->box, | |
1368 | &id_phys->alternate_paths_phys_box_on_port, | |
1369 | sizeof(device->box)); | |
1370 | memcpy(&device->phys_connector, | |
1371 | &id_phys->alternate_paths_phys_connector, | |
1372 | sizeof(device->phys_connector)); | |
1373 | device->bay = id_phys->phys_bay_in_box; | |
1374 | } | |
1375 | ||
1376 | static void pqi_show_volume_status(struct pqi_ctrl_info *ctrl_info, | |
1377 | struct pqi_scsi_dev *device) | |
1378 | { | |
1379 | char *status; | |
1380 | static const char unknown_state_str[] = | |
1381 | "Volume is in an unknown state (%u)"; | |
1382 | char unknown_state_buffer[sizeof(unknown_state_str) + 10]; | |
1383 | ||
1384 | switch (device->volume_status) { | |
1385 | case CISS_LV_OK: | |
1386 | status = "Volume online"; | |
1387 | break; | |
1388 | case CISS_LV_FAILED: | |
1389 | status = "Volume failed"; | |
1390 | break; | |
1391 | case CISS_LV_NOT_CONFIGURED: | |
1392 | status = "Volume not configured"; | |
1393 | break; | |
1394 | case CISS_LV_DEGRADED: | |
1395 | status = "Volume degraded"; | |
1396 | break; | |
1397 | case CISS_LV_READY_FOR_RECOVERY: | |
1398 | status = "Volume ready for recovery operation"; | |
1399 | break; | |
1400 | case CISS_LV_UNDERGOING_RECOVERY: | |
1401 | status = "Volume undergoing recovery"; | |
1402 | break; | |
1403 | case CISS_LV_WRONG_PHYSICAL_DRIVE_REPLACED: | |
1404 | status = "Wrong physical drive was replaced"; | |
1405 | break; | |
1406 | case CISS_LV_PHYSICAL_DRIVE_CONNECTION_PROBLEM: | |
1407 | status = "A physical drive not properly connected"; | |
1408 | break; | |
1409 | case CISS_LV_HARDWARE_OVERHEATING: | |
1410 | status = "Hardware is overheating"; | |
1411 | break; | |
1412 | case CISS_LV_HARDWARE_HAS_OVERHEATED: | |
1413 | status = "Hardware has overheated"; | |
1414 | break; | |
1415 | case CISS_LV_UNDERGOING_EXPANSION: | |
1416 | status = "Volume undergoing expansion"; | |
1417 | break; | |
1418 | case CISS_LV_NOT_AVAILABLE: | |
1419 | status = "Volume waiting for transforming volume"; | |
1420 | break; | |
1421 | case CISS_LV_QUEUED_FOR_EXPANSION: | |
1422 | status = "Volume queued for expansion"; | |
1423 | break; | |
1424 | case CISS_LV_DISABLED_SCSI_ID_CONFLICT: | |
1425 | status = "Volume disabled due to SCSI ID conflict"; | |
1426 | break; | |
1427 | case CISS_LV_EJECTED: | |
1428 | status = "Volume has been ejected"; | |
1429 | break; | |
1430 | case CISS_LV_UNDERGOING_ERASE: | |
1431 | status = "Volume undergoing background erase"; | |
1432 | break; | |
1433 | case CISS_LV_READY_FOR_PREDICTIVE_SPARE_REBUILD: | |
1434 | status = "Volume ready for predictive spare rebuild"; | |
1435 | break; | |
1436 | case CISS_LV_UNDERGOING_RPI: | |
1437 | status = "Volume undergoing rapid parity initialization"; | |
1438 | break; | |
1439 | case CISS_LV_PENDING_RPI: | |
1440 | status = "Volume queued for rapid parity initialization"; | |
1441 | break; | |
1442 | case CISS_LV_ENCRYPTED_NO_KEY: | |
1443 | status = "Encrypted volume inaccessible - key not present"; | |
1444 | break; | |
1445 | case CISS_LV_UNDERGOING_ENCRYPTION: | |
1446 | status = "Volume undergoing encryption process"; | |
1447 | break; | |
1448 | case CISS_LV_UNDERGOING_ENCRYPTION_REKEYING: | |
1449 | status = "Volume undergoing encryption re-keying process"; | |
1450 | break; | |
1451 | case CISS_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER: | |
d87d5474 | 1452 | status = "Volume encrypted but encryption is disabled"; |
6c223761 KB |
1453 | break; |
1454 | case CISS_LV_PENDING_ENCRYPTION: | |
1455 | status = "Volume pending migration to encrypted state"; | |
1456 | break; | |
1457 | case CISS_LV_PENDING_ENCRYPTION_REKEYING: | |
1458 | status = "Volume pending encryption rekeying"; | |
1459 | break; | |
1460 | case CISS_LV_NOT_SUPPORTED: | |
1461 | status = "Volume not supported on this controller"; | |
1462 | break; | |
1463 | case CISS_LV_STATUS_UNAVAILABLE: | |
1464 | status = "Volume status not available"; | |
1465 | break; | |
1466 | default: | |
1467 | snprintf(unknown_state_buffer, sizeof(unknown_state_buffer), | |
1468 | unknown_state_str, device->volume_status); | |
1469 | status = unknown_state_buffer; | |
1470 | break; | |
1471 | } | |
1472 | ||
1473 | dev_info(&ctrl_info->pci_dev->dev, | |
1474 | "scsi %d:%d:%d:%d %s\n", | |
1475 | ctrl_info->scsi_host->host_no, | |
1476 | device->bus, device->target, device->lun, status); | |
1477 | } | |
1478 | ||
6c223761 KB |
1479 | static void pqi_rescan_worker(struct work_struct *work) |
1480 | { | |
1481 | struct pqi_ctrl_info *ctrl_info; | |
1482 | ||
1483 | ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info, | |
1484 | rescan_work); | |
1485 | ||
1486 | pqi_scan_scsi_devices(ctrl_info); | |
1487 | } | |
1488 | ||
1489 | static int pqi_add_device(struct pqi_ctrl_info *ctrl_info, | |
1490 | struct pqi_scsi_dev *device) | |
1491 | { | |
1492 | int rc; | |
1493 | ||
1494 | if (pqi_is_logical_device(device)) | |
1495 | rc = scsi_add_device(ctrl_info->scsi_host, device->bus, | |
1496 | device->target, device->lun); | |
1497 | else | |
1498 | rc = pqi_add_sas_device(ctrl_info->sas_host, device); | |
1499 | ||
1500 | return rc; | |
1501 | } | |
1502 | ||
1e46731e MR |
1503 | #define PQI_PENDING_IO_TIMEOUT_SECS 20 |
1504 | ||
6c223761 KB |
1505 | static inline void pqi_remove_device(struct pqi_ctrl_info *ctrl_info, |
1506 | struct pqi_scsi_dev *device) | |
1507 | { | |
1e46731e MR |
1508 | int rc; |
1509 | ||
1510 | pqi_device_remove_start(device); | |
1511 | ||
1512 | rc = pqi_device_wait_for_pending_io(ctrl_info, device, | |
1513 | PQI_PENDING_IO_TIMEOUT_SECS); | |
1514 | if (rc) | |
1515 | dev_err(&ctrl_info->pci_dev->dev, | |
1516 | "scsi %d:%d:%d:%d removing device with %d outstanding commands\n", | |
1517 | ctrl_info->scsi_host->host_no, device->bus, | |
1518 | device->target, device->lun, | |
1519 | atomic_read(&device->scsi_cmds_outstanding)); | |
1520 | ||
6c223761 KB |
1521 | if (pqi_is_logical_device(device)) |
1522 | scsi_remove_device(device->sdev); | |
1523 | else | |
1524 | pqi_remove_sas_device(device); | |
1525 | } | |
1526 | ||
1527 | /* Assumes the SCSI device list lock is held. */ | |
1528 | ||
1529 | static struct pqi_scsi_dev *pqi_find_scsi_dev(struct pqi_ctrl_info *ctrl_info, | |
1530 | int bus, int target, int lun) | |
1531 | { | |
1532 | struct pqi_scsi_dev *device; | |
1533 | ||
1534 | list_for_each_entry(device, &ctrl_info->scsi_device_list, | |
1535 | scsi_device_list_entry) | |
1536 | if (device->bus == bus && device->target == target && | |
1537 | device->lun == lun) | |
1538 | return device; | |
1539 | ||
1540 | return NULL; | |
1541 | } | |
1542 | ||
1543 | static inline bool pqi_device_equal(struct pqi_scsi_dev *dev1, | |
1544 | struct pqi_scsi_dev *dev2) | |
1545 | { | |
1546 | if (dev1->is_physical_device != dev2->is_physical_device) | |
1547 | return false; | |
1548 | ||
1549 | if (dev1->is_physical_device) | |
1550 | return dev1->wwid == dev2->wwid; | |
1551 | ||
1552 | return memcmp(dev1->volume_id, dev2->volume_id, | |
1553 | sizeof(dev1->volume_id)) == 0; | |
1554 | } | |
1555 | ||
1556 | enum pqi_find_result { | |
1557 | DEVICE_NOT_FOUND, | |
1558 | DEVICE_CHANGED, | |
1559 | DEVICE_SAME, | |
1560 | }; | |
1561 | ||
1562 | static enum pqi_find_result pqi_scsi_find_entry(struct pqi_ctrl_info *ctrl_info, | |
1563 | struct pqi_scsi_dev *device_to_find, | |
1564 | struct pqi_scsi_dev **matching_device) | |
1565 | { | |
1566 | struct pqi_scsi_dev *device; | |
1567 | ||
1568 | list_for_each_entry(device, &ctrl_info->scsi_device_list, | |
1569 | scsi_device_list_entry) { | |
1570 | if (pqi_scsi3addr_equal(device_to_find->scsi3addr, | |
1571 | device->scsi3addr)) { | |
1572 | *matching_device = device; | |
1573 | if (pqi_device_equal(device_to_find, device)) { | |
1574 | if (device_to_find->volume_offline) | |
1575 | return DEVICE_CHANGED; | |
1576 | return DEVICE_SAME; | |
1577 | } | |
1578 | return DEVICE_CHANGED; | |
1579 | } | |
1580 | } | |
1581 | ||
1582 | return DEVICE_NOT_FOUND; | |
1583 | } | |
1584 | ||
6de783f6 KB |
1585 | #define PQI_DEV_INFO_BUFFER_LENGTH 128 |
1586 | ||
6c223761 KB |
1587 | static void pqi_dev_info(struct pqi_ctrl_info *ctrl_info, |
1588 | char *action, struct pqi_scsi_dev *device) | |
1589 | { | |
6de783f6 KB |
1590 | ssize_t count; |
1591 | char buffer[PQI_DEV_INFO_BUFFER_LENGTH]; | |
1592 | ||
1593 | count = snprintf(buffer, PQI_DEV_INFO_BUFFER_LENGTH, | |
1594 | "%d:%d:", ctrl_info->scsi_host->host_no, device->bus); | |
1595 | ||
1596 | if (device->target_lun_valid) | |
1597 | count += snprintf(buffer + count, | |
1598 | PQI_DEV_INFO_BUFFER_LENGTH - count, | |
1599 | "%d:%d", | |
1600 | device->target, | |
1601 | device->lun); | |
1602 | else | |
1603 | count += snprintf(buffer + count, | |
1604 | PQI_DEV_INFO_BUFFER_LENGTH - count, | |
1605 | "-:-"); | |
1606 | ||
1607 | if (pqi_is_logical_device(device)) | |
1608 | count += snprintf(buffer + count, | |
1609 | PQI_DEV_INFO_BUFFER_LENGTH - count, | |
1610 | " %08x%08x", | |
1611 | *((u32 *)&device->scsi3addr), | |
1612 | *((u32 *)&device->scsi3addr[4])); | |
1613 | else | |
1614 | count += snprintf(buffer + count, | |
1615 | PQI_DEV_INFO_BUFFER_LENGTH - count, | |
1616 | " %016llx", device->sas_address); | |
1617 | ||
1618 | count += snprintf(buffer + count, PQI_DEV_INFO_BUFFER_LENGTH - count, | |
1619 | " %s %.8s %.16s ", | |
6c223761 KB |
1620 | scsi_device_type(device->devtype), |
1621 | device->vendor, | |
6de783f6 KB |
1622 | device->model); |
1623 | ||
1624 | if (pqi_is_logical_device(device)) { | |
1625 | if (device->devtype == TYPE_DISK) | |
1626 | count += snprintf(buffer + count, | |
1627 | PQI_DEV_INFO_BUFFER_LENGTH - count, | |
1628 | "SSDSmartPathCap%c En%c %-12s", | |
588a63fe KB |
1629 | device->raid_bypass_configured ? '+' : '-', |
1630 | device->raid_bypass_enabled ? '+' : '-', | |
6de783f6 KB |
1631 | pqi_raid_level_to_string(device->raid_level)); |
1632 | } else { | |
1633 | count += snprintf(buffer + count, | |
1634 | PQI_DEV_INFO_BUFFER_LENGTH - count, | |
1635 | "AIO%c", device->aio_enabled ? '+' : '-'); | |
1636 | if (device->devtype == TYPE_DISK || | |
1637 | device->devtype == TYPE_ZBC) | |
1638 | count += snprintf(buffer + count, | |
1639 | PQI_DEV_INFO_BUFFER_LENGTH - count, | |
1640 | " qd=%-6d", device->queue_depth); | |
1641 | } | |
1642 | ||
1643 | dev_info(&ctrl_info->pci_dev->dev, "%s %s\n", action, buffer); | |
6c223761 KB |
1644 | } |
1645 | ||
1646 | /* Assumes the SCSI device list lock is held. */ | |
1647 | ||
1648 | static void pqi_scsi_update_device(struct pqi_scsi_dev *existing_device, | |
1649 | struct pqi_scsi_dev *new_device) | |
1650 | { | |
1651 | existing_device->devtype = new_device->devtype; | |
1652 | existing_device->device_type = new_device->device_type; | |
1653 | existing_device->bus = new_device->bus; | |
1654 | if (new_device->target_lun_valid) { | |
1655 | existing_device->target = new_device->target; | |
1656 | existing_device->lun = new_device->lun; | |
1657 | existing_device->target_lun_valid = true; | |
1658 | } | |
1659 | ||
1660 | /* By definition, the scsi3addr and wwid fields are already the same. */ | |
1661 | ||
1662 | existing_device->is_physical_device = new_device->is_physical_device; | |
bd10cf0b KB |
1663 | existing_device->is_external_raid_device = |
1664 | new_device->is_external_raid_device; | |
6c223761 KB |
1665 | existing_device->aio_enabled = new_device->aio_enabled; |
1666 | memcpy(existing_device->vendor, new_device->vendor, | |
1667 | sizeof(existing_device->vendor)); | |
1668 | memcpy(existing_device->model, new_device->model, | |
1669 | sizeof(existing_device->model)); | |
1670 | existing_device->sas_address = new_device->sas_address; | |
1671 | existing_device->raid_level = new_device->raid_level; | |
1672 | existing_device->queue_depth = new_device->queue_depth; | |
1673 | existing_device->aio_handle = new_device->aio_handle; | |
1674 | existing_device->volume_status = new_device->volume_status; | |
1675 | existing_device->active_path_index = new_device->active_path_index; | |
1676 | existing_device->path_map = new_device->path_map; | |
1677 | existing_device->bay = new_device->bay; | |
1678 | memcpy(existing_device->box, new_device->box, | |
1679 | sizeof(existing_device->box)); | |
1680 | memcpy(existing_device->phys_connector, new_device->phys_connector, | |
1681 | sizeof(existing_device->phys_connector)); | |
6c223761 KB |
1682 | existing_device->offload_to_mirror = 0; |
1683 | kfree(existing_device->raid_map); | |
1684 | existing_device->raid_map = new_device->raid_map; | |
588a63fe KB |
1685 | existing_device->raid_bypass_configured = |
1686 | new_device->raid_bypass_configured; | |
1687 | existing_device->raid_bypass_enabled = | |
1688 | new_device->raid_bypass_enabled; | |
6c223761 KB |
1689 | |
1690 | /* To prevent this from being freed later. */ | |
1691 | new_device->raid_map = NULL; | |
1692 | } | |
1693 | ||
1694 | static inline void pqi_free_device(struct pqi_scsi_dev *device) | |
1695 | { | |
1696 | if (device) { | |
1697 | kfree(device->raid_map); | |
1698 | kfree(device); | |
1699 | } | |
1700 | } | |
1701 | ||
1702 | /* | |
1703 | * Called when exposing a new device to the OS fails in order to re-adjust | |
1704 | * our internal SCSI device list to match the SCSI ML's view. | |
1705 | */ | |
1706 | ||
1707 | static inline void pqi_fixup_botched_add(struct pqi_ctrl_info *ctrl_info, | |
1708 | struct pqi_scsi_dev *device) | |
1709 | { | |
1710 | unsigned long flags; | |
1711 | ||
1712 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
1713 | list_del(&device->scsi_device_list_entry); | |
1714 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); | |
1715 | ||
1716 | /* Allow the device structure to be freed later. */ | |
1717 | device->keep_device = false; | |
1718 | } | |
1719 | ||
1720 | static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info, | |
1721 | struct pqi_scsi_dev *new_device_list[], unsigned int num_new_devices) | |
1722 | { | |
1723 | int rc; | |
1724 | unsigned int i; | |
1725 | unsigned long flags; | |
1726 | enum pqi_find_result find_result; | |
1727 | struct pqi_scsi_dev *device; | |
1728 | struct pqi_scsi_dev *next; | |
1729 | struct pqi_scsi_dev *matching_device; | |
8a994a04 KB |
1730 | LIST_HEAD(add_list); |
1731 | LIST_HEAD(delete_list); | |
6c223761 KB |
1732 | |
1733 | /* | |
1734 | * The idea here is to do as little work as possible while holding the | |
1735 | * spinlock. That's why we go to great pains to defer anything other | |
1736 | * than updating the internal device list until after we release the | |
1737 | * spinlock. | |
1738 | */ | |
1739 | ||
1740 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
1741 | ||
1742 | /* Assume that all devices in the existing list have gone away. */ | |
1743 | list_for_each_entry(device, &ctrl_info->scsi_device_list, | |
1744 | scsi_device_list_entry) | |
1745 | device->device_gone = true; | |
1746 | ||
1747 | for (i = 0; i < num_new_devices; i++) { | |
1748 | device = new_device_list[i]; | |
1749 | ||
1750 | find_result = pqi_scsi_find_entry(ctrl_info, device, | |
1751 | &matching_device); | |
1752 | ||
1753 | switch (find_result) { | |
1754 | case DEVICE_SAME: | |
1755 | /* | |
1756 | * The newly found device is already in the existing | |
1757 | * device list. | |
1758 | */ | |
1759 | device->new_device = false; | |
1760 | matching_device->device_gone = false; | |
1761 | pqi_scsi_update_device(matching_device, device); | |
1762 | break; | |
1763 | case DEVICE_NOT_FOUND: | |
1764 | /* | |
1765 | * The newly found device is NOT in the existing device | |
1766 | * list. | |
1767 | */ | |
1768 | device->new_device = true; | |
1769 | break; | |
1770 | case DEVICE_CHANGED: | |
1771 | /* | |
1772 | * The original device has gone away and we need to add | |
1773 | * the new device. | |
1774 | */ | |
1775 | device->new_device = true; | |
1776 | break; | |
6c223761 KB |
1777 | } |
1778 | } | |
1779 | ||
1780 | /* Process all devices that have gone away. */ | |
1781 | list_for_each_entry_safe(device, next, &ctrl_info->scsi_device_list, | |
1782 | scsi_device_list_entry) { | |
1783 | if (device->device_gone) { | |
1784 | list_del(&device->scsi_device_list_entry); | |
1785 | list_add_tail(&device->delete_list_entry, &delete_list); | |
1786 | } | |
1787 | } | |
1788 | ||
1789 | /* Process all new devices. */ | |
1790 | for (i = 0; i < num_new_devices; i++) { | |
1791 | device = new_device_list[i]; | |
1792 | if (!device->new_device) | |
1793 | continue; | |
1794 | if (device->volume_offline) | |
1795 | continue; | |
1796 | list_add_tail(&device->scsi_device_list_entry, | |
1797 | &ctrl_info->scsi_device_list); | |
1798 | list_add_tail(&device->add_list_entry, &add_list); | |
1799 | /* To prevent this device structure from being freed later. */ | |
1800 | device->keep_device = true; | |
1801 | } | |
1802 | ||
6c223761 KB |
1803 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); |
1804 | ||
1805 | /* Remove all devices that have gone away. */ | |
1806 | list_for_each_entry_safe(device, next, &delete_list, | |
1807 | delete_list_entry) { | |
6c223761 KB |
1808 | if (device->volume_offline) { |
1809 | pqi_dev_info(ctrl_info, "offline", device); | |
1810 | pqi_show_volume_status(ctrl_info, device); | |
1811 | } else { | |
1812 | pqi_dev_info(ctrl_info, "removed", device); | |
1813 | } | |
6de783f6 KB |
1814 | if (device->sdev) |
1815 | pqi_remove_device(ctrl_info, device); | |
6c223761 KB |
1816 | list_del(&device->delete_list_entry); |
1817 | pqi_free_device(device); | |
1818 | } | |
1819 | ||
1820 | /* | |
1821 | * Notify the SCSI ML if the queue depth of any existing device has | |
1822 | * changed. | |
1823 | */ | |
1824 | list_for_each_entry(device, &ctrl_info->scsi_device_list, | |
1825 | scsi_device_list_entry) { | |
1826 | if (device->sdev && device->queue_depth != | |
1827 | device->advertised_queue_depth) { | |
1828 | device->advertised_queue_depth = device->queue_depth; | |
1829 | scsi_change_queue_depth(device->sdev, | |
1830 | device->advertised_queue_depth); | |
1831 | } | |
1832 | } | |
1833 | ||
1834 | /* Expose any new devices. */ | |
1835 | list_for_each_entry_safe(device, next, &add_list, add_list_entry) { | |
94086f5b | 1836 | if (!device->sdev) { |
6de783f6 | 1837 | pqi_dev_info(ctrl_info, "added", device); |
6c223761 KB |
1838 | rc = pqi_add_device(ctrl_info, device); |
1839 | if (rc) { | |
1840 | dev_warn(&ctrl_info->pci_dev->dev, | |
1841 | "scsi %d:%d:%d:%d addition failed, device not added\n", | |
1842 | ctrl_info->scsi_host->host_no, | |
1843 | device->bus, device->target, | |
1844 | device->lun); | |
1845 | pqi_fixup_botched_add(ctrl_info, device); | |
6c223761 KB |
1846 | } |
1847 | } | |
6c223761 KB |
1848 | } |
1849 | } | |
1850 | ||
1851 | static bool pqi_is_supported_device(struct pqi_scsi_dev *device) | |
1852 | { | |
1853 | bool is_supported = false; | |
1854 | ||
1855 | switch (device->devtype) { | |
1856 | case TYPE_DISK: | |
1857 | case TYPE_ZBC: | |
1858 | case TYPE_TAPE: | |
1859 | case TYPE_MEDIUM_CHANGER: | |
1860 | case TYPE_ENCLOSURE: | |
1861 | is_supported = true; | |
1862 | break; | |
1863 | case TYPE_RAID: | |
1864 | /* | |
1865 | * Only support the HBA controller itself as a RAID | |
1866 | * controller. If it's a RAID controller other than | |
376fb880 KB |
1867 | * the HBA itself (an external RAID controller, for |
1868 | * example), we don't support it. | |
6c223761 KB |
1869 | */ |
1870 | if (pqi_is_hba_lunid(device->scsi3addr)) | |
1871 | is_supported = true; | |
1872 | break; | |
1873 | } | |
1874 | ||
1875 | return is_supported; | |
1876 | } | |
1877 | ||
94086f5b | 1878 | static inline bool pqi_skip_device(u8 *scsi3addr) |
6c223761 | 1879 | { |
94086f5b KB |
1880 | /* Ignore all masked devices. */ |
1881 | if (MASKED_DEVICE(scsi3addr)) | |
6c223761 | 1882 | return true; |
6c223761 KB |
1883 | |
1884 | return false; | |
1885 | } | |
1886 | ||
cd128244 DC |
1887 | static inline bool pqi_expose_device(struct pqi_scsi_dev *device) |
1888 | { | |
1889 | return !device->is_physical_device || | |
1890 | !pqi_skip_device(device->scsi3addr); | |
1891 | } | |
1892 | ||
6c223761 KB |
1893 | static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info) |
1894 | { | |
1895 | int i; | |
1896 | int rc; | |
8a994a04 | 1897 | LIST_HEAD(new_device_list_head); |
6c223761 KB |
1898 | struct report_phys_lun_extended *physdev_list = NULL; |
1899 | struct report_log_lun_extended *logdev_list = NULL; | |
1900 | struct report_phys_lun_extended_entry *phys_lun_ext_entry; | |
1901 | struct report_log_lun_extended_entry *log_lun_ext_entry; | |
1902 | struct bmic_identify_physical_device *id_phys = NULL; | |
1903 | u32 num_physicals; | |
1904 | u32 num_logicals; | |
1905 | struct pqi_scsi_dev **new_device_list = NULL; | |
1906 | struct pqi_scsi_dev *device; | |
1907 | struct pqi_scsi_dev *next; | |
1908 | unsigned int num_new_devices; | |
1909 | unsigned int num_valid_devices; | |
1910 | bool is_physical_device; | |
1911 | u8 *scsi3addr; | |
1912 | static char *out_of_memory_msg = | |
6de783f6 | 1913 | "failed to allocate memory, device discovery stopped"; |
6c223761 | 1914 | |
6c223761 KB |
1915 | rc = pqi_get_device_lists(ctrl_info, &physdev_list, &logdev_list); |
1916 | if (rc) | |
1917 | goto out; | |
1918 | ||
1919 | if (physdev_list) | |
1920 | num_physicals = | |
1921 | get_unaligned_be32(&physdev_list->header.list_length) | |
1922 | / sizeof(physdev_list->lun_entries[0]); | |
1923 | else | |
1924 | num_physicals = 0; | |
1925 | ||
1926 | if (logdev_list) | |
1927 | num_logicals = | |
1928 | get_unaligned_be32(&logdev_list->header.list_length) | |
1929 | / sizeof(logdev_list->lun_entries[0]); | |
1930 | else | |
1931 | num_logicals = 0; | |
1932 | ||
1933 | if (num_physicals) { | |
1934 | /* | |
1935 | * We need this buffer for calls to pqi_get_physical_disk_info() | |
1936 | * below. We allocate it here instead of inside | |
1937 | * pqi_get_physical_disk_info() because it's a fairly large | |
1938 | * buffer. | |
1939 | */ | |
1940 | id_phys = kmalloc(sizeof(*id_phys), GFP_KERNEL); | |
1941 | if (!id_phys) { | |
1942 | dev_warn(&ctrl_info->pci_dev->dev, "%s\n", | |
1943 | out_of_memory_msg); | |
1944 | rc = -ENOMEM; | |
1945 | goto out; | |
1946 | } | |
1947 | } | |
1948 | ||
1949 | num_new_devices = num_physicals + num_logicals; | |
1950 | ||
6da2ec56 KC |
1951 | new_device_list = kmalloc_array(num_new_devices, |
1952 | sizeof(*new_device_list), | |
1953 | GFP_KERNEL); | |
6c223761 KB |
1954 | if (!new_device_list) { |
1955 | dev_warn(&ctrl_info->pci_dev->dev, "%s\n", out_of_memory_msg); | |
1956 | rc = -ENOMEM; | |
1957 | goto out; | |
1958 | } | |
1959 | ||
1960 | for (i = 0; i < num_new_devices; i++) { | |
1961 | device = kzalloc(sizeof(*device), GFP_KERNEL); | |
1962 | if (!device) { | |
1963 | dev_warn(&ctrl_info->pci_dev->dev, "%s\n", | |
1964 | out_of_memory_msg); | |
1965 | rc = -ENOMEM; | |
1966 | goto out; | |
1967 | } | |
1968 | list_add_tail(&device->new_device_list_entry, | |
1969 | &new_device_list_head); | |
1970 | } | |
1971 | ||
1972 | device = NULL; | |
1973 | num_valid_devices = 0; | |
1974 | ||
1975 | for (i = 0; i < num_new_devices; i++) { | |
1976 | ||
1977 | if (i < num_physicals) { | |
1978 | is_physical_device = true; | |
1979 | phys_lun_ext_entry = &physdev_list->lun_entries[i]; | |
1980 | log_lun_ext_entry = NULL; | |
1981 | scsi3addr = phys_lun_ext_entry->lunid; | |
1982 | } else { | |
1983 | is_physical_device = false; | |
1984 | phys_lun_ext_entry = NULL; | |
1985 | log_lun_ext_entry = | |
1986 | &logdev_list->lun_entries[i - num_physicals]; | |
1987 | scsi3addr = log_lun_ext_entry->lunid; | |
1988 | } | |
1989 | ||
94086f5b | 1990 | if (is_physical_device && pqi_skip_device(scsi3addr)) |
6c223761 KB |
1991 | continue; |
1992 | ||
1993 | if (device) | |
1994 | device = list_next_entry(device, new_device_list_entry); | |
1995 | else | |
1996 | device = list_first_entry(&new_device_list_head, | |
1997 | struct pqi_scsi_dev, new_device_list_entry); | |
1998 | ||
1999 | memcpy(device->scsi3addr, scsi3addr, sizeof(device->scsi3addr)); | |
2000 | device->is_physical_device = is_physical_device; | |
bd10cf0b KB |
2001 | if (!is_physical_device) |
2002 | device->is_external_raid_device = | |
2003 | pqi_is_external_raid_addr(scsi3addr); | |
6c223761 KB |
2004 | |
2005 | /* Gather information about the device. */ | |
2006 | rc = pqi_get_device_info(ctrl_info, device); | |
2007 | if (rc == -ENOMEM) { | |
2008 | dev_warn(&ctrl_info->pci_dev->dev, "%s\n", | |
2009 | out_of_memory_msg); | |
2010 | goto out; | |
2011 | } | |
2012 | if (rc) { | |
6de783f6 KB |
2013 | if (device->is_physical_device) |
2014 | dev_warn(&ctrl_info->pci_dev->dev, | |
2015 | "obtaining device info failed, skipping physical device %016llx\n", | |
2016 | get_unaligned_be64( | |
2017 | &phys_lun_ext_entry->wwid)); | |
2018 | else | |
2019 | dev_warn(&ctrl_info->pci_dev->dev, | |
2020 | "obtaining device info failed, skipping logical device %08x%08x\n", | |
2021 | *((u32 *)&device->scsi3addr), | |
2022 | *((u32 *)&device->scsi3addr[4])); | |
6c223761 KB |
2023 | rc = 0; |
2024 | continue; | |
2025 | } | |
2026 | ||
2027 | if (!pqi_is_supported_device(device)) | |
2028 | continue; | |
2029 | ||
2030 | pqi_assign_bus_target_lun(device); | |
2031 | ||
6c223761 KB |
2032 | if (device->is_physical_device) { |
2033 | device->wwid = phys_lun_ext_entry->wwid; | |
2034 | if ((phys_lun_ext_entry->device_flags & | |
2035 | REPORT_PHYS_LUN_DEV_FLAG_AIO_ENABLED) && | |
2036 | phys_lun_ext_entry->aio_handle) | |
2037 | device->aio_enabled = true; | |
2038 | } else { | |
2039 | memcpy(device->volume_id, log_lun_ext_entry->volume_id, | |
2040 | sizeof(device->volume_id)); | |
2041 | } | |
2042 | ||
2043 | switch (device->devtype) { | |
2044 | case TYPE_DISK: | |
2045 | case TYPE_ZBC: | |
2046 | case TYPE_ENCLOSURE: | |
2047 | if (device->is_physical_device) { | |
2048 | device->sas_address = | |
2049 | get_unaligned_be64(&device->wwid); | |
2050 | if (device->devtype == TYPE_DISK || | |
2051 | device->devtype == TYPE_ZBC) { | |
2052 | device->aio_handle = | |
2053 | phys_lun_ext_entry->aio_handle; | |
2054 | pqi_get_physical_disk_info(ctrl_info, | |
2055 | device, id_phys); | |
2056 | } | |
2057 | } | |
2058 | break; | |
2059 | } | |
2060 | ||
2061 | new_device_list[num_valid_devices++] = device; | |
2062 | } | |
2063 | ||
2064 | pqi_update_device_list(ctrl_info, new_device_list, num_valid_devices); | |
2065 | ||
2066 | out: | |
2067 | list_for_each_entry_safe(device, next, &new_device_list_head, | |
2068 | new_device_list_entry) { | |
2069 | if (device->keep_device) | |
2070 | continue; | |
2071 | list_del(&device->new_device_list_entry); | |
2072 | pqi_free_device(device); | |
2073 | } | |
2074 | ||
2075 | kfree(new_device_list); | |
2076 | kfree(physdev_list); | |
2077 | kfree(logdev_list); | |
2078 | kfree(id_phys); | |
2079 | ||
2080 | return rc; | |
2081 | } | |
2082 | ||
2083 | static void pqi_remove_all_scsi_devices(struct pqi_ctrl_info *ctrl_info) | |
2084 | { | |
2085 | unsigned long flags; | |
2086 | struct pqi_scsi_dev *device; | |
6c223761 | 2087 | |
a37ef745 KB |
2088 | while (1) { |
2089 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
2090 | ||
2091 | device = list_first_entry_or_null(&ctrl_info->scsi_device_list, | |
2092 | struct pqi_scsi_dev, scsi_device_list_entry); | |
2093 | if (device) | |
2094 | list_del(&device->scsi_device_list_entry); | |
2095 | ||
2096 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, | |
2097 | flags); | |
2098 | ||
2099 | if (!device) | |
2100 | break; | |
6c223761 | 2101 | |
6c223761 KB |
2102 | if (device->sdev) |
2103 | pqi_remove_device(ctrl_info, device); | |
6c223761 KB |
2104 | pqi_free_device(device); |
2105 | } | |
6c223761 KB |
2106 | } |
2107 | ||
2108 | static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info) | |
2109 | { | |
2110 | int rc; | |
2111 | ||
2112 | if (pqi_ctrl_offline(ctrl_info)) | |
2113 | return -ENXIO; | |
2114 | ||
2115 | mutex_lock(&ctrl_info->scan_mutex); | |
2116 | ||
2117 | rc = pqi_update_scsi_devices(ctrl_info); | |
2118 | if (rc) | |
5f310425 | 2119 | pqi_schedule_rescan_worker_delayed(ctrl_info); |
6c223761 KB |
2120 | |
2121 | mutex_unlock(&ctrl_info->scan_mutex); | |
2122 | ||
2123 | return rc; | |
2124 | } | |
2125 | ||
2126 | static void pqi_scan_start(struct Scsi_Host *shost) | |
2127 | { | |
2128 | pqi_scan_scsi_devices(shost_to_hba(shost)); | |
2129 | } | |
2130 | ||
2131 | /* Returns TRUE if scan is finished. */ | |
2132 | ||
2133 | static int pqi_scan_finished(struct Scsi_Host *shost, | |
2134 | unsigned long elapsed_time) | |
2135 | { | |
2136 | struct pqi_ctrl_info *ctrl_info; | |
2137 | ||
2138 | ctrl_info = shost_priv(shost); | |
2139 | ||
2140 | return !mutex_is_locked(&ctrl_info->scan_mutex); | |
2141 | } | |
2142 | ||
061ef06a KB |
2143 | static void pqi_wait_until_scan_finished(struct pqi_ctrl_info *ctrl_info) |
2144 | { | |
2145 | mutex_lock(&ctrl_info->scan_mutex); | |
2146 | mutex_unlock(&ctrl_info->scan_mutex); | |
2147 | } | |
2148 | ||
2149 | static void pqi_wait_until_lun_reset_finished(struct pqi_ctrl_info *ctrl_info) | |
2150 | { | |
2151 | mutex_lock(&ctrl_info->lun_reset_mutex); | |
2152 | mutex_unlock(&ctrl_info->lun_reset_mutex); | |
2153 | } | |
2154 | ||
6c223761 KB |
2155 | static inline void pqi_set_encryption_info( |
2156 | struct pqi_encryption_info *encryption_info, struct raid_map *raid_map, | |
2157 | u64 first_block) | |
2158 | { | |
2159 | u32 volume_blk_size; | |
2160 | ||
2161 | /* | |
2162 | * Set the encryption tweak values based on logical block address. | |
2163 | * If the block size is 512, the tweak value is equal to the LBA. | |
2164 | * For other block sizes, tweak value is (LBA * block size) / 512. | |
2165 | */ | |
2166 | volume_blk_size = get_unaligned_le32(&raid_map->volume_blk_size); | |
2167 | if (volume_blk_size != 512) | |
2168 | first_block = (first_block * volume_blk_size) / 512; | |
2169 | ||
2170 | encryption_info->data_encryption_key_index = | |
2171 | get_unaligned_le16(&raid_map->data_encryption_key_index); | |
2172 | encryption_info->encrypt_tweak_lower = lower_32_bits(first_block); | |
2173 | encryption_info->encrypt_tweak_upper = upper_32_bits(first_block); | |
2174 | } | |
2175 | ||
2176 | /* | |
588a63fe | 2177 | * Attempt to perform RAID bypass mapping for a logical volume I/O. |
6c223761 KB |
2178 | */ |
2179 | ||
2180 | #define PQI_RAID_BYPASS_INELIGIBLE 1 | |
2181 | ||
2182 | static int pqi_raid_bypass_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info, | |
2183 | struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, | |
2184 | struct pqi_queue_group *queue_group) | |
2185 | { | |
2186 | struct raid_map *raid_map; | |
2187 | bool is_write = false; | |
2188 | u32 map_index; | |
2189 | u64 first_block; | |
2190 | u64 last_block; | |
2191 | u32 block_cnt; | |
2192 | u32 blocks_per_row; | |
2193 | u64 first_row; | |
2194 | u64 last_row; | |
2195 | u32 first_row_offset; | |
2196 | u32 last_row_offset; | |
2197 | u32 first_column; | |
2198 | u32 last_column; | |
2199 | u64 r0_first_row; | |
2200 | u64 r0_last_row; | |
2201 | u32 r5or6_blocks_per_row; | |
2202 | u64 r5or6_first_row; | |
2203 | u64 r5or6_last_row; | |
2204 | u32 r5or6_first_row_offset; | |
2205 | u32 r5or6_last_row_offset; | |
2206 | u32 r5or6_first_column; | |
2207 | u32 r5or6_last_column; | |
2208 | u16 data_disks_per_row; | |
2209 | u32 total_disks_per_row; | |
2210 | u16 layout_map_count; | |
2211 | u32 stripesize; | |
2212 | u16 strip_size; | |
2213 | u32 first_group; | |
2214 | u32 last_group; | |
2215 | u32 current_group; | |
2216 | u32 map_row; | |
2217 | u32 aio_handle; | |
2218 | u64 disk_block; | |
2219 | u32 disk_block_cnt; | |
2220 | u8 cdb[16]; | |
2221 | u8 cdb_length; | |
2222 | int offload_to_mirror; | |
2223 | struct pqi_encryption_info *encryption_info_ptr; | |
2224 | struct pqi_encryption_info encryption_info; | |
2225 | #if BITS_PER_LONG == 32 | |
2226 | u64 tmpdiv; | |
2227 | #endif | |
2228 | ||
2229 | /* Check for valid opcode, get LBA and block count. */ | |
2230 | switch (scmd->cmnd[0]) { | |
2231 | case WRITE_6: | |
2232 | is_write = true; | |
2233 | /* fall through */ | |
2234 | case READ_6: | |
e018ef57 B |
2235 | first_block = (u64)(((scmd->cmnd[1] & 0x1f) << 16) | |
2236 | (scmd->cmnd[2] << 8) | scmd->cmnd[3]); | |
6c223761 KB |
2237 | block_cnt = (u32)scmd->cmnd[4]; |
2238 | if (block_cnt == 0) | |
2239 | block_cnt = 256; | |
2240 | break; | |
2241 | case WRITE_10: | |
2242 | is_write = true; | |
2243 | /* fall through */ | |
2244 | case READ_10: | |
2245 | first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]); | |
2246 | block_cnt = (u32)get_unaligned_be16(&scmd->cmnd[7]); | |
2247 | break; | |
2248 | case WRITE_12: | |
2249 | is_write = true; | |
2250 | /* fall through */ | |
2251 | case READ_12: | |
2252 | first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]); | |
2253 | block_cnt = get_unaligned_be32(&scmd->cmnd[6]); | |
2254 | break; | |
2255 | case WRITE_16: | |
2256 | is_write = true; | |
2257 | /* fall through */ | |
2258 | case READ_16: | |
2259 | first_block = get_unaligned_be64(&scmd->cmnd[2]); | |
2260 | block_cnt = get_unaligned_be32(&scmd->cmnd[10]); | |
2261 | break; | |
2262 | default: | |
2263 | /* Process via normal I/O path. */ | |
2264 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2265 | } | |
2266 | ||
2267 | /* Check for write to non-RAID-0. */ | |
2268 | if (is_write && device->raid_level != SA_RAID_0) | |
2269 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2270 | ||
2271 | if (unlikely(block_cnt == 0)) | |
2272 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2273 | ||
2274 | last_block = first_block + block_cnt - 1; | |
2275 | raid_map = device->raid_map; | |
2276 | ||
2277 | /* Check for invalid block or wraparound. */ | |
2278 | if (last_block >= get_unaligned_le64(&raid_map->volume_blk_cnt) || | |
2279 | last_block < first_block) | |
2280 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2281 | ||
2282 | data_disks_per_row = get_unaligned_le16(&raid_map->data_disks_per_row); | |
2283 | strip_size = get_unaligned_le16(&raid_map->strip_size); | |
2284 | layout_map_count = get_unaligned_le16(&raid_map->layout_map_count); | |
2285 | ||
2286 | /* Calculate stripe information for the request. */ | |
2287 | blocks_per_row = data_disks_per_row * strip_size; | |
2288 | #if BITS_PER_LONG == 32 | |
2289 | tmpdiv = first_block; | |
2290 | do_div(tmpdiv, blocks_per_row); | |
2291 | first_row = tmpdiv; | |
2292 | tmpdiv = last_block; | |
2293 | do_div(tmpdiv, blocks_per_row); | |
2294 | last_row = tmpdiv; | |
2295 | first_row_offset = (u32)(first_block - (first_row * blocks_per_row)); | |
2296 | last_row_offset = (u32)(last_block - (last_row * blocks_per_row)); | |
2297 | tmpdiv = first_row_offset; | |
2298 | do_div(tmpdiv, strip_size); | |
2299 | first_column = tmpdiv; | |
2300 | tmpdiv = last_row_offset; | |
2301 | do_div(tmpdiv, strip_size); | |
2302 | last_column = tmpdiv; | |
2303 | #else | |
2304 | first_row = first_block / blocks_per_row; | |
2305 | last_row = last_block / blocks_per_row; | |
2306 | first_row_offset = (u32)(first_block - (first_row * blocks_per_row)); | |
2307 | last_row_offset = (u32)(last_block - (last_row * blocks_per_row)); | |
2308 | first_column = first_row_offset / strip_size; | |
2309 | last_column = last_row_offset / strip_size; | |
2310 | #endif | |
2311 | ||
2312 | /* If this isn't a single row/column then give to the controller. */ | |
2313 | if (first_row != last_row || first_column != last_column) | |
2314 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2315 | ||
2316 | /* Proceeding with driver mapping. */ | |
2317 | total_disks_per_row = data_disks_per_row + | |
2318 | get_unaligned_le16(&raid_map->metadata_disks_per_row); | |
2319 | map_row = ((u32)(first_row >> raid_map->parity_rotation_shift)) % | |
2320 | get_unaligned_le16(&raid_map->row_cnt); | |
2321 | map_index = (map_row * total_disks_per_row) + first_column; | |
2322 | ||
2323 | /* RAID 1 */ | |
2324 | if (device->raid_level == SA_RAID_1) { | |
2325 | if (device->offload_to_mirror) | |
2326 | map_index += data_disks_per_row; | |
2327 | device->offload_to_mirror = !device->offload_to_mirror; | |
2328 | } else if (device->raid_level == SA_RAID_ADM) { | |
2329 | /* RAID ADM */ | |
2330 | /* | |
2331 | * Handles N-way mirrors (R1-ADM) and R10 with # of drives | |
2332 | * divisible by 3. | |
2333 | */ | |
2334 | offload_to_mirror = device->offload_to_mirror; | |
2335 | if (offload_to_mirror == 0) { | |
2336 | /* use physical disk in the first mirrored group. */ | |
2337 | map_index %= data_disks_per_row; | |
2338 | } else { | |
2339 | do { | |
2340 | /* | |
2341 | * Determine mirror group that map_index | |
2342 | * indicates. | |
2343 | */ | |
2344 | current_group = map_index / data_disks_per_row; | |
2345 | ||
2346 | if (offload_to_mirror != current_group) { | |
2347 | if (current_group < | |
2348 | layout_map_count - 1) { | |
2349 | /* | |
2350 | * Select raid index from | |
2351 | * next group. | |
2352 | */ | |
2353 | map_index += data_disks_per_row; | |
2354 | current_group++; | |
2355 | } else { | |
2356 | /* | |
2357 | * Select raid index from first | |
2358 | * group. | |
2359 | */ | |
2360 | map_index %= data_disks_per_row; | |
2361 | current_group = 0; | |
2362 | } | |
2363 | } | |
2364 | } while (offload_to_mirror != current_group); | |
2365 | } | |
2366 | ||
2367 | /* Set mirror group to use next time. */ | |
2368 | offload_to_mirror = | |
2369 | (offload_to_mirror >= layout_map_count - 1) ? | |
2370 | 0 : offload_to_mirror + 1; | |
2371 | WARN_ON(offload_to_mirror >= layout_map_count); | |
2372 | device->offload_to_mirror = offload_to_mirror; | |
2373 | /* | |
2374 | * Avoid direct use of device->offload_to_mirror within this | |
2375 | * function since multiple threads might simultaneously | |
2376 | * increment it beyond the range of device->layout_map_count -1. | |
2377 | */ | |
2378 | } else if ((device->raid_level == SA_RAID_5 || | |
2379 | device->raid_level == SA_RAID_6) && layout_map_count > 1) { | |
2380 | /* RAID 50/60 */ | |
2381 | /* Verify first and last block are in same RAID group */ | |
2382 | r5or6_blocks_per_row = strip_size * data_disks_per_row; | |
2383 | stripesize = r5or6_blocks_per_row * layout_map_count; | |
2384 | #if BITS_PER_LONG == 32 | |
2385 | tmpdiv = first_block; | |
2386 | first_group = do_div(tmpdiv, stripesize); | |
2387 | tmpdiv = first_group; | |
2388 | do_div(tmpdiv, r5or6_blocks_per_row); | |
2389 | first_group = tmpdiv; | |
2390 | tmpdiv = last_block; | |
2391 | last_group = do_div(tmpdiv, stripesize); | |
2392 | tmpdiv = last_group; | |
2393 | do_div(tmpdiv, r5or6_blocks_per_row); | |
2394 | last_group = tmpdiv; | |
2395 | #else | |
2396 | first_group = (first_block % stripesize) / r5or6_blocks_per_row; | |
2397 | last_group = (last_block % stripesize) / r5or6_blocks_per_row; | |
2398 | #endif | |
2399 | if (first_group != last_group) | |
2400 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2401 | ||
2402 | /* Verify request is in a single row of RAID 5/6 */ | |
2403 | #if BITS_PER_LONG == 32 | |
2404 | tmpdiv = first_block; | |
2405 | do_div(tmpdiv, stripesize); | |
2406 | first_row = r5or6_first_row = r0_first_row = tmpdiv; | |
2407 | tmpdiv = last_block; | |
2408 | do_div(tmpdiv, stripesize); | |
2409 | r5or6_last_row = r0_last_row = tmpdiv; | |
2410 | #else | |
2411 | first_row = r5or6_first_row = r0_first_row = | |
2412 | first_block / stripesize; | |
2413 | r5or6_last_row = r0_last_row = last_block / stripesize; | |
2414 | #endif | |
2415 | if (r5or6_first_row != r5or6_last_row) | |
2416 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2417 | ||
2418 | /* Verify request is in a single column */ | |
2419 | #if BITS_PER_LONG == 32 | |
2420 | tmpdiv = first_block; | |
2421 | first_row_offset = do_div(tmpdiv, stripesize); | |
2422 | tmpdiv = first_row_offset; | |
2423 | first_row_offset = (u32)do_div(tmpdiv, r5or6_blocks_per_row); | |
2424 | r5or6_first_row_offset = first_row_offset; | |
2425 | tmpdiv = last_block; | |
2426 | r5or6_last_row_offset = do_div(tmpdiv, stripesize); | |
2427 | tmpdiv = r5or6_last_row_offset; | |
2428 | r5or6_last_row_offset = do_div(tmpdiv, r5or6_blocks_per_row); | |
2429 | tmpdiv = r5or6_first_row_offset; | |
2430 | do_div(tmpdiv, strip_size); | |
2431 | first_column = r5or6_first_column = tmpdiv; | |
2432 | tmpdiv = r5or6_last_row_offset; | |
2433 | do_div(tmpdiv, strip_size); | |
2434 | r5or6_last_column = tmpdiv; | |
2435 | #else | |
2436 | first_row_offset = r5or6_first_row_offset = | |
2437 | (u32)((first_block % stripesize) % | |
2438 | r5or6_blocks_per_row); | |
2439 | ||
2440 | r5or6_last_row_offset = | |
2441 | (u32)((last_block % stripesize) % | |
2442 | r5or6_blocks_per_row); | |
2443 | ||
2444 | first_column = r5or6_first_row_offset / strip_size; | |
2445 | r5or6_first_column = first_column; | |
2446 | r5or6_last_column = r5or6_last_row_offset / strip_size; | |
2447 | #endif | |
2448 | if (r5or6_first_column != r5or6_last_column) | |
2449 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2450 | ||
2451 | /* Request is eligible */ | |
2452 | map_row = | |
2453 | ((u32)(first_row >> raid_map->parity_rotation_shift)) % | |
2454 | get_unaligned_le16(&raid_map->row_cnt); | |
2455 | ||
2456 | map_index = (first_group * | |
2457 | (get_unaligned_le16(&raid_map->row_cnt) * | |
2458 | total_disks_per_row)) + | |
2459 | (map_row * total_disks_per_row) + first_column; | |
2460 | } | |
2461 | ||
2462 | if (unlikely(map_index >= RAID_MAP_MAX_ENTRIES)) | |
2463 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2464 | ||
2465 | aio_handle = raid_map->disk_data[map_index].aio_handle; | |
2466 | disk_block = get_unaligned_le64(&raid_map->disk_starting_blk) + | |
2467 | first_row * strip_size + | |
2468 | (first_row_offset - first_column * strip_size); | |
2469 | disk_block_cnt = block_cnt; | |
2470 | ||
2471 | /* Handle differing logical/physical block sizes. */ | |
2472 | if (raid_map->phys_blk_shift) { | |
2473 | disk_block <<= raid_map->phys_blk_shift; | |
2474 | disk_block_cnt <<= raid_map->phys_blk_shift; | |
2475 | } | |
2476 | ||
2477 | if (unlikely(disk_block_cnt > 0xffff)) | |
2478 | return PQI_RAID_BYPASS_INELIGIBLE; | |
2479 | ||
2480 | /* Build the new CDB for the physical disk I/O. */ | |
2481 | if (disk_block > 0xffffffff) { | |
2482 | cdb[0] = is_write ? WRITE_16 : READ_16; | |
2483 | cdb[1] = 0; | |
2484 | put_unaligned_be64(disk_block, &cdb[2]); | |
2485 | put_unaligned_be32(disk_block_cnt, &cdb[10]); | |
2486 | cdb[14] = 0; | |
2487 | cdb[15] = 0; | |
2488 | cdb_length = 16; | |
2489 | } else { | |
2490 | cdb[0] = is_write ? WRITE_10 : READ_10; | |
2491 | cdb[1] = 0; | |
2492 | put_unaligned_be32((u32)disk_block, &cdb[2]); | |
2493 | cdb[6] = 0; | |
2494 | put_unaligned_be16((u16)disk_block_cnt, &cdb[7]); | |
2495 | cdb[9] = 0; | |
2496 | cdb_length = 10; | |
2497 | } | |
2498 | ||
2499 | if (get_unaligned_le16(&raid_map->flags) & | |
2500 | RAID_MAP_ENCRYPTION_ENABLED) { | |
2501 | pqi_set_encryption_info(&encryption_info, raid_map, | |
2502 | first_block); | |
2503 | encryption_info_ptr = &encryption_info; | |
2504 | } else { | |
2505 | encryption_info_ptr = NULL; | |
2506 | } | |
2507 | ||
2508 | return pqi_aio_submit_io(ctrl_info, scmd, aio_handle, | |
376fb880 | 2509 | cdb, cdb_length, queue_group, encryption_info_ptr, true); |
6c223761 KB |
2510 | } |
2511 | ||
2512 | #define PQI_STATUS_IDLE 0x0 | |
2513 | ||
2514 | #define PQI_CREATE_ADMIN_QUEUE_PAIR 1 | |
2515 | #define PQI_DELETE_ADMIN_QUEUE_PAIR 2 | |
2516 | ||
2517 | #define PQI_DEVICE_STATE_POWER_ON_AND_RESET 0x0 | |
2518 | #define PQI_DEVICE_STATE_STATUS_AVAILABLE 0x1 | |
2519 | #define PQI_DEVICE_STATE_ALL_REGISTERS_READY 0x2 | |
2520 | #define PQI_DEVICE_STATE_ADMIN_QUEUE_PAIR_READY 0x3 | |
2521 | #define PQI_DEVICE_STATE_ERROR 0x4 | |
2522 | ||
2523 | #define PQI_MODE_READY_TIMEOUT_SECS 30 | |
2524 | #define PQI_MODE_READY_POLL_INTERVAL_MSECS 1 | |
2525 | ||
2526 | static int pqi_wait_for_pqi_mode_ready(struct pqi_ctrl_info *ctrl_info) | |
2527 | { | |
2528 | struct pqi_device_registers __iomem *pqi_registers; | |
2529 | unsigned long timeout; | |
2530 | u64 signature; | |
2531 | u8 status; | |
2532 | ||
2533 | pqi_registers = ctrl_info->pqi_registers; | |
2534 | timeout = (PQI_MODE_READY_TIMEOUT_SECS * HZ) + jiffies; | |
2535 | ||
2536 | while (1) { | |
2537 | signature = readq(&pqi_registers->signature); | |
2538 | if (memcmp(&signature, PQI_DEVICE_SIGNATURE, | |
2539 | sizeof(signature)) == 0) | |
2540 | break; | |
2541 | if (time_after(jiffies, timeout)) { | |
2542 | dev_err(&ctrl_info->pci_dev->dev, | |
2543 | "timed out waiting for PQI signature\n"); | |
2544 | return -ETIMEDOUT; | |
2545 | } | |
2546 | msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS); | |
2547 | } | |
2548 | ||
2549 | while (1) { | |
2550 | status = readb(&pqi_registers->function_and_status_code); | |
2551 | if (status == PQI_STATUS_IDLE) | |
2552 | break; | |
2553 | if (time_after(jiffies, timeout)) { | |
2554 | dev_err(&ctrl_info->pci_dev->dev, | |
2555 | "timed out waiting for PQI IDLE\n"); | |
2556 | return -ETIMEDOUT; | |
2557 | } | |
2558 | msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS); | |
2559 | } | |
2560 | ||
2561 | while (1) { | |
2562 | if (readl(&pqi_registers->device_status) == | |
2563 | PQI_DEVICE_STATE_ALL_REGISTERS_READY) | |
2564 | break; | |
2565 | if (time_after(jiffies, timeout)) { | |
2566 | dev_err(&ctrl_info->pci_dev->dev, | |
2567 | "timed out waiting for PQI all registers ready\n"); | |
2568 | return -ETIMEDOUT; | |
2569 | } | |
2570 | msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS); | |
2571 | } | |
2572 | ||
2573 | return 0; | |
2574 | } | |
2575 | ||
2576 | static inline void pqi_aio_path_disabled(struct pqi_io_request *io_request) | |
2577 | { | |
2578 | struct pqi_scsi_dev *device; | |
2579 | ||
2580 | device = io_request->scmd->device->hostdata; | |
588a63fe | 2581 | device->raid_bypass_enabled = false; |
376fb880 | 2582 | device->aio_enabled = false; |
6c223761 KB |
2583 | } |
2584 | ||
d87d5474 | 2585 | static inline void pqi_take_device_offline(struct scsi_device *sdev, char *path) |
6c223761 KB |
2586 | { |
2587 | struct pqi_ctrl_info *ctrl_info; | |
e58081a7 | 2588 | struct pqi_scsi_dev *device; |
6c223761 | 2589 | |
03b288cf KB |
2590 | device = sdev->hostdata; |
2591 | if (device->device_offline) | |
2592 | return; | |
2593 | ||
2594 | device->device_offline = true; | |
2595 | scsi_device_set_state(sdev, SDEV_OFFLINE); | |
2596 | ctrl_info = shost_to_hba(sdev->host); | |
2597 | pqi_schedule_rescan_worker(ctrl_info); | |
2598 | dev_err(&ctrl_info->pci_dev->dev, "offlined %s scsi %d:%d:%d:%d\n", | |
2599 | path, ctrl_info->scsi_host->host_no, device->bus, | |
2600 | device->target, device->lun); | |
6c223761 KB |
2601 | } |
2602 | ||
2603 | static void pqi_process_raid_io_error(struct pqi_io_request *io_request) | |
2604 | { | |
2605 | u8 scsi_status; | |
2606 | u8 host_byte; | |
2607 | struct scsi_cmnd *scmd; | |
2608 | struct pqi_raid_error_info *error_info; | |
2609 | size_t sense_data_length; | |
2610 | int residual_count; | |
2611 | int xfer_count; | |
2612 | struct scsi_sense_hdr sshdr; | |
2613 | ||
2614 | scmd = io_request->scmd; | |
2615 | if (!scmd) | |
2616 | return; | |
2617 | ||
2618 | error_info = io_request->error_info; | |
2619 | scsi_status = error_info->status; | |
2620 | host_byte = DID_OK; | |
2621 | ||
f5b63206 KB |
2622 | switch (error_info->data_out_result) { |
2623 | case PQI_DATA_IN_OUT_GOOD: | |
2624 | break; | |
2625 | case PQI_DATA_IN_OUT_UNDERFLOW: | |
6c223761 KB |
2626 | xfer_count = |
2627 | get_unaligned_le32(&error_info->data_out_transferred); | |
2628 | residual_count = scsi_bufflen(scmd) - xfer_count; | |
2629 | scsi_set_resid(scmd, residual_count); | |
2630 | if (xfer_count < scmd->underflow) | |
2631 | host_byte = DID_SOFT_ERROR; | |
f5b63206 KB |
2632 | break; |
2633 | case PQI_DATA_IN_OUT_UNSOLICITED_ABORT: | |
2634 | case PQI_DATA_IN_OUT_ABORTED: | |
2635 | host_byte = DID_ABORT; | |
2636 | break; | |
2637 | case PQI_DATA_IN_OUT_TIMEOUT: | |
2638 | host_byte = DID_TIME_OUT; | |
2639 | break; | |
2640 | case PQI_DATA_IN_OUT_BUFFER_OVERFLOW: | |
2641 | case PQI_DATA_IN_OUT_PROTOCOL_ERROR: | |
2642 | case PQI_DATA_IN_OUT_BUFFER_ERROR: | |
2643 | case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA: | |
2644 | case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE: | |
2645 | case PQI_DATA_IN_OUT_ERROR: | |
2646 | case PQI_DATA_IN_OUT_HARDWARE_ERROR: | |
2647 | case PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR: | |
2648 | case PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT: | |
2649 | case PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED: | |
2650 | case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED: | |
2651 | case PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED: | |
2652 | case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST: | |
2653 | case PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION: | |
2654 | case PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED: | |
2655 | case PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ: | |
2656 | default: | |
2657 | host_byte = DID_ERROR; | |
2658 | break; | |
6c223761 KB |
2659 | } |
2660 | ||
2661 | sense_data_length = get_unaligned_le16(&error_info->sense_data_length); | |
2662 | if (sense_data_length == 0) | |
2663 | sense_data_length = | |
2664 | get_unaligned_le16(&error_info->response_data_length); | |
2665 | if (sense_data_length) { | |
2666 | if (sense_data_length > sizeof(error_info->data)) | |
2667 | sense_data_length = sizeof(error_info->data); | |
2668 | ||
2669 | if (scsi_status == SAM_STAT_CHECK_CONDITION && | |
2670 | scsi_normalize_sense(error_info->data, | |
2671 | sense_data_length, &sshdr) && | |
2672 | sshdr.sense_key == HARDWARE_ERROR && | |
2673 | sshdr.asc == 0x3e && | |
2674 | sshdr.ascq == 0x1) { | |
d87d5474 | 2675 | pqi_take_device_offline(scmd->device, "RAID"); |
6c223761 KB |
2676 | host_byte = DID_NO_CONNECT; |
2677 | } | |
2678 | ||
2679 | if (sense_data_length > SCSI_SENSE_BUFFERSIZE) | |
2680 | sense_data_length = SCSI_SENSE_BUFFERSIZE; | |
2681 | memcpy(scmd->sense_buffer, error_info->data, | |
2682 | sense_data_length); | |
2683 | } | |
2684 | ||
2685 | scmd->result = scsi_status; | |
2686 | set_host_byte(scmd, host_byte); | |
2687 | } | |
2688 | ||
2689 | static void pqi_process_aio_io_error(struct pqi_io_request *io_request) | |
2690 | { | |
2691 | u8 scsi_status; | |
2692 | u8 host_byte; | |
2693 | struct scsi_cmnd *scmd; | |
2694 | struct pqi_aio_error_info *error_info; | |
2695 | size_t sense_data_length; | |
2696 | int residual_count; | |
2697 | int xfer_count; | |
2698 | bool device_offline; | |
2699 | ||
2700 | scmd = io_request->scmd; | |
2701 | error_info = io_request->error_info; | |
2702 | host_byte = DID_OK; | |
2703 | sense_data_length = 0; | |
2704 | device_offline = false; | |
2705 | ||
2706 | switch (error_info->service_response) { | |
2707 | case PQI_AIO_SERV_RESPONSE_COMPLETE: | |
2708 | scsi_status = error_info->status; | |
2709 | break; | |
2710 | case PQI_AIO_SERV_RESPONSE_FAILURE: | |
2711 | switch (error_info->status) { | |
2712 | case PQI_AIO_STATUS_IO_ABORTED: | |
2713 | scsi_status = SAM_STAT_TASK_ABORTED; | |
2714 | break; | |
2715 | case PQI_AIO_STATUS_UNDERRUN: | |
2716 | scsi_status = SAM_STAT_GOOD; | |
2717 | residual_count = get_unaligned_le32( | |
2718 | &error_info->residual_count); | |
2719 | scsi_set_resid(scmd, residual_count); | |
2720 | xfer_count = scsi_bufflen(scmd) - residual_count; | |
2721 | if (xfer_count < scmd->underflow) | |
2722 | host_byte = DID_SOFT_ERROR; | |
2723 | break; | |
2724 | case PQI_AIO_STATUS_OVERRUN: | |
2725 | scsi_status = SAM_STAT_GOOD; | |
2726 | break; | |
2727 | case PQI_AIO_STATUS_AIO_PATH_DISABLED: | |
2728 | pqi_aio_path_disabled(io_request); | |
2729 | scsi_status = SAM_STAT_GOOD; | |
2730 | io_request->status = -EAGAIN; | |
2731 | break; | |
2732 | case PQI_AIO_STATUS_NO_PATH_TO_DEVICE: | |
2733 | case PQI_AIO_STATUS_INVALID_DEVICE: | |
376fb880 KB |
2734 | if (!io_request->raid_bypass) { |
2735 | device_offline = true; | |
2736 | pqi_take_device_offline(scmd->device, "AIO"); | |
2737 | host_byte = DID_NO_CONNECT; | |
2738 | } | |
6c223761 KB |
2739 | scsi_status = SAM_STAT_CHECK_CONDITION; |
2740 | break; | |
2741 | case PQI_AIO_STATUS_IO_ERROR: | |
2742 | default: | |
2743 | scsi_status = SAM_STAT_CHECK_CONDITION; | |
2744 | break; | |
2745 | } | |
2746 | break; | |
2747 | case PQI_AIO_SERV_RESPONSE_TMF_COMPLETE: | |
2748 | case PQI_AIO_SERV_RESPONSE_TMF_SUCCEEDED: | |
2749 | scsi_status = SAM_STAT_GOOD; | |
2750 | break; | |
2751 | case PQI_AIO_SERV_RESPONSE_TMF_REJECTED: | |
2752 | case PQI_AIO_SERV_RESPONSE_TMF_INCORRECT_LUN: | |
2753 | default: | |
2754 | scsi_status = SAM_STAT_CHECK_CONDITION; | |
2755 | break; | |
2756 | } | |
2757 | ||
2758 | if (error_info->data_present) { | |
2759 | sense_data_length = | |
2760 | get_unaligned_le16(&error_info->data_length); | |
2761 | if (sense_data_length) { | |
2762 | if (sense_data_length > sizeof(error_info->data)) | |
2763 | sense_data_length = sizeof(error_info->data); | |
2764 | if (sense_data_length > SCSI_SENSE_BUFFERSIZE) | |
2765 | sense_data_length = SCSI_SENSE_BUFFERSIZE; | |
2766 | memcpy(scmd->sense_buffer, error_info->data, | |
2767 | sense_data_length); | |
2768 | } | |
2769 | } | |
2770 | ||
2771 | if (device_offline && sense_data_length == 0) | |
2772 | scsi_build_sense_buffer(0, scmd->sense_buffer, HARDWARE_ERROR, | |
2773 | 0x3e, 0x1); | |
2774 | ||
2775 | scmd->result = scsi_status; | |
2776 | set_host_byte(scmd, host_byte); | |
2777 | } | |
2778 | ||
2779 | static void pqi_process_io_error(unsigned int iu_type, | |
2780 | struct pqi_io_request *io_request) | |
2781 | { | |
2782 | switch (iu_type) { | |
2783 | case PQI_RESPONSE_IU_RAID_PATH_IO_ERROR: | |
2784 | pqi_process_raid_io_error(io_request); | |
2785 | break; | |
2786 | case PQI_RESPONSE_IU_AIO_PATH_IO_ERROR: | |
2787 | pqi_process_aio_io_error(io_request); | |
2788 | break; | |
2789 | } | |
2790 | } | |
2791 | ||
2792 | static int pqi_interpret_task_management_response( | |
2793 | struct pqi_task_management_response *response) | |
2794 | { | |
2795 | int rc; | |
2796 | ||
2797 | switch (response->response_code) { | |
b17f0486 KB |
2798 | case SOP_TMF_COMPLETE: |
2799 | case SOP_TMF_FUNCTION_SUCCEEDED: | |
6c223761 KB |
2800 | rc = 0; |
2801 | break; | |
3406384b MR |
2802 | case SOP_TMF_REJECTED: |
2803 | rc = -EAGAIN; | |
2804 | break; | |
6c223761 KB |
2805 | default: |
2806 | rc = -EIO; | |
2807 | break; | |
2808 | } | |
2809 | ||
2810 | return rc; | |
2811 | } | |
2812 | ||
2813 | static unsigned int pqi_process_io_intr(struct pqi_ctrl_info *ctrl_info, | |
2814 | struct pqi_queue_group *queue_group) | |
2815 | { | |
2816 | unsigned int num_responses; | |
2817 | pqi_index_t oq_pi; | |
2818 | pqi_index_t oq_ci; | |
2819 | struct pqi_io_request *io_request; | |
2820 | struct pqi_io_response *response; | |
2821 | u16 request_id; | |
2822 | ||
2823 | num_responses = 0; | |
2824 | oq_ci = queue_group->oq_ci_copy; | |
2825 | ||
2826 | while (1) { | |
dac12fbc | 2827 | oq_pi = readl(queue_group->oq_pi); |
6c223761 KB |
2828 | if (oq_pi == oq_ci) |
2829 | break; | |
2830 | ||
2831 | num_responses++; | |
2832 | response = queue_group->oq_element_array + | |
2833 | (oq_ci * PQI_OPERATIONAL_OQ_ELEMENT_LENGTH); | |
2834 | ||
2835 | request_id = get_unaligned_le16(&response->request_id); | |
2836 | WARN_ON(request_id >= ctrl_info->max_io_slots); | |
2837 | ||
2838 | io_request = &ctrl_info->io_request_pool[request_id]; | |
2839 | WARN_ON(atomic_read(&io_request->refcount) == 0); | |
2840 | ||
2841 | switch (response->header.iu_type) { | |
2842 | case PQI_RESPONSE_IU_RAID_PATH_IO_SUCCESS: | |
2843 | case PQI_RESPONSE_IU_AIO_PATH_IO_SUCCESS: | |
2844 | case PQI_RESPONSE_IU_GENERAL_MANAGEMENT: | |
2845 | break; | |
b212c251 KB |
2846 | case PQI_RESPONSE_IU_VENDOR_GENERAL: |
2847 | io_request->status = | |
2848 | get_unaligned_le16( | |
2849 | &((struct pqi_vendor_general_response *) | |
2850 | response)->status); | |
2851 | break; | |
6c223761 KB |
2852 | case PQI_RESPONSE_IU_TASK_MANAGEMENT: |
2853 | io_request->status = | |
2854 | pqi_interpret_task_management_response( | |
2855 | (void *)response); | |
2856 | break; | |
2857 | case PQI_RESPONSE_IU_AIO_PATH_DISABLED: | |
2858 | pqi_aio_path_disabled(io_request); | |
2859 | io_request->status = -EAGAIN; | |
2860 | break; | |
2861 | case PQI_RESPONSE_IU_RAID_PATH_IO_ERROR: | |
2862 | case PQI_RESPONSE_IU_AIO_PATH_IO_ERROR: | |
2863 | io_request->error_info = ctrl_info->error_buffer + | |
2864 | (get_unaligned_le16(&response->error_index) * | |
2865 | PQI_ERROR_BUFFER_ELEMENT_LENGTH); | |
2866 | pqi_process_io_error(response->header.iu_type, | |
2867 | io_request); | |
2868 | break; | |
2869 | default: | |
2870 | dev_err(&ctrl_info->pci_dev->dev, | |
2871 | "unexpected IU type: 0x%x\n", | |
2872 | response->header.iu_type); | |
6c223761 KB |
2873 | break; |
2874 | } | |
2875 | ||
2876 | io_request->io_complete_callback(io_request, | |
2877 | io_request->context); | |
2878 | ||
2879 | /* | |
2880 | * Note that the I/O request structure CANNOT BE TOUCHED after | |
2881 | * returning from the I/O completion callback! | |
2882 | */ | |
2883 | ||
2884 | oq_ci = (oq_ci + 1) % ctrl_info->num_elements_per_oq; | |
2885 | } | |
2886 | ||
2887 | if (num_responses) { | |
2888 | queue_group->oq_ci_copy = oq_ci; | |
2889 | writel(oq_ci, queue_group->oq_ci); | |
2890 | } | |
2891 | ||
2892 | return num_responses; | |
2893 | } | |
2894 | ||
2895 | static inline unsigned int pqi_num_elements_free(unsigned int pi, | |
df7a1fcf | 2896 | unsigned int ci, unsigned int elements_in_queue) |
6c223761 KB |
2897 | { |
2898 | unsigned int num_elements_used; | |
2899 | ||
2900 | if (pi >= ci) | |
2901 | num_elements_used = pi - ci; | |
2902 | else | |
2903 | num_elements_used = elements_in_queue - ci + pi; | |
2904 | ||
2905 | return elements_in_queue - num_elements_used - 1; | |
2906 | } | |
2907 | ||
98f87667 | 2908 | static void pqi_send_event_ack(struct pqi_ctrl_info *ctrl_info, |
6c223761 KB |
2909 | struct pqi_event_acknowledge_request *iu, size_t iu_length) |
2910 | { | |
2911 | pqi_index_t iq_pi; | |
2912 | pqi_index_t iq_ci; | |
2913 | unsigned long flags; | |
2914 | void *next_element; | |
6c223761 KB |
2915 | struct pqi_queue_group *queue_group; |
2916 | ||
2917 | queue_group = &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP]; | |
2918 | put_unaligned_le16(queue_group->oq_id, &iu->header.response_queue_id); | |
2919 | ||
6c223761 KB |
2920 | while (1) { |
2921 | spin_lock_irqsave(&queue_group->submit_lock[RAID_PATH], flags); | |
2922 | ||
2923 | iq_pi = queue_group->iq_pi_copy[RAID_PATH]; | |
dac12fbc | 2924 | iq_ci = readl(queue_group->iq_ci[RAID_PATH]); |
6c223761 KB |
2925 | |
2926 | if (pqi_num_elements_free(iq_pi, iq_ci, | |
2927 | ctrl_info->num_elements_per_iq)) | |
2928 | break; | |
2929 | ||
2930 | spin_unlock_irqrestore( | |
2931 | &queue_group->submit_lock[RAID_PATH], flags); | |
2932 | ||
98f87667 | 2933 | if (pqi_ctrl_offline(ctrl_info)) |
6c223761 | 2934 | return; |
6c223761 KB |
2935 | } |
2936 | ||
2937 | next_element = queue_group->iq_element_array[RAID_PATH] + | |
2938 | (iq_pi * PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); | |
2939 | ||
2940 | memcpy(next_element, iu, iu_length); | |
2941 | ||
2942 | iq_pi = (iq_pi + 1) % ctrl_info->num_elements_per_iq; | |
6c223761 KB |
2943 | queue_group->iq_pi_copy[RAID_PATH] = iq_pi; |
2944 | ||
2945 | /* | |
2946 | * This write notifies the controller that an IU is available to be | |
2947 | * processed. | |
2948 | */ | |
2949 | writel(iq_pi, queue_group->iq_pi[RAID_PATH]); | |
2950 | ||
2951 | spin_unlock_irqrestore(&queue_group->submit_lock[RAID_PATH], flags); | |
6c223761 KB |
2952 | } |
2953 | ||
2954 | static void pqi_acknowledge_event(struct pqi_ctrl_info *ctrl_info, | |
2955 | struct pqi_event *event) | |
2956 | { | |
2957 | struct pqi_event_acknowledge_request request; | |
2958 | ||
2959 | memset(&request, 0, sizeof(request)); | |
2960 | ||
2961 | request.header.iu_type = PQI_REQUEST_IU_ACKNOWLEDGE_VENDOR_EVENT; | |
2962 | put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH, | |
2963 | &request.header.iu_length); | |
2964 | request.event_type = event->event_type; | |
2965 | request.event_id = event->event_id; | |
2966 | request.additional_event_id = event->additional_event_id; | |
2967 | ||
98f87667 | 2968 | pqi_send_event_ack(ctrl_info, &request, sizeof(request)); |
6c223761 KB |
2969 | } |
2970 | ||
2971 | static void pqi_event_worker(struct work_struct *work) | |
2972 | { | |
2973 | unsigned int i; | |
2974 | struct pqi_ctrl_info *ctrl_info; | |
6a50d6ad | 2975 | struct pqi_event *event; |
6c223761 KB |
2976 | |
2977 | ctrl_info = container_of(work, struct pqi_ctrl_info, event_work); | |
2978 | ||
7561a7e4 KB |
2979 | pqi_ctrl_busy(ctrl_info); |
2980 | pqi_wait_if_ctrl_blocked(ctrl_info, NO_TIMEOUT); | |
5f310425 KB |
2981 | if (pqi_ctrl_offline(ctrl_info)) |
2982 | goto out; | |
2983 | ||
2984 | pqi_schedule_rescan_worker_delayed(ctrl_info); | |
7561a7e4 | 2985 | |
6a50d6ad | 2986 | event = ctrl_info->events; |
6c223761 | 2987 | for (i = 0; i < PQI_NUM_SUPPORTED_EVENTS; i++) { |
6a50d6ad KB |
2988 | if (event->pending) { |
2989 | event->pending = false; | |
2990 | pqi_acknowledge_event(ctrl_info, event); | |
6c223761 | 2991 | } |
6a50d6ad | 2992 | event++; |
6c223761 KB |
2993 | } |
2994 | ||
5f310425 | 2995 | out: |
7561a7e4 | 2996 | pqi_ctrl_unbusy(ctrl_info); |
6c223761 KB |
2997 | } |
2998 | ||
98f87667 | 2999 | #define PQI_HEARTBEAT_TIMER_INTERVAL (10 * HZ) |
6c223761 | 3000 | |
74a0f573 | 3001 | static void pqi_heartbeat_timer_handler(struct timer_list *t) |
6c223761 KB |
3002 | { |
3003 | int num_interrupts; | |
98f87667 | 3004 | u32 heartbeat_count; |
74a0f573 KC |
3005 | struct pqi_ctrl_info *ctrl_info = from_timer(ctrl_info, t, |
3006 | heartbeat_timer); | |
6c223761 | 3007 | |
98f87667 KB |
3008 | pqi_check_ctrl_health(ctrl_info); |
3009 | if (pqi_ctrl_offline(ctrl_info)) | |
061ef06a KB |
3010 | return; |
3011 | ||
6c223761 | 3012 | num_interrupts = atomic_read(&ctrl_info->num_interrupts); |
98f87667 | 3013 | heartbeat_count = pqi_read_heartbeat_counter(ctrl_info); |
6c223761 KB |
3014 | |
3015 | if (num_interrupts == ctrl_info->previous_num_interrupts) { | |
98f87667 KB |
3016 | if (heartbeat_count == ctrl_info->previous_heartbeat_count) { |
3017 | dev_err(&ctrl_info->pci_dev->dev, | |
3018 | "no heartbeat detected - last heartbeat count: %u\n", | |
3019 | heartbeat_count); | |
6c223761 KB |
3020 | pqi_take_ctrl_offline(ctrl_info); |
3021 | return; | |
3022 | } | |
6c223761 | 3023 | } else { |
98f87667 | 3024 | ctrl_info->previous_num_interrupts = num_interrupts; |
6c223761 KB |
3025 | } |
3026 | ||
98f87667 | 3027 | ctrl_info->previous_heartbeat_count = heartbeat_count; |
6c223761 KB |
3028 | mod_timer(&ctrl_info->heartbeat_timer, |
3029 | jiffies + PQI_HEARTBEAT_TIMER_INTERVAL); | |
3030 | } | |
3031 | ||
3032 | static void pqi_start_heartbeat_timer(struct pqi_ctrl_info *ctrl_info) | |
3033 | { | |
98f87667 KB |
3034 | if (!ctrl_info->heartbeat_counter) |
3035 | return; | |
3036 | ||
6c223761 KB |
3037 | ctrl_info->previous_num_interrupts = |
3038 | atomic_read(&ctrl_info->num_interrupts); | |
98f87667 KB |
3039 | ctrl_info->previous_heartbeat_count = |
3040 | pqi_read_heartbeat_counter(ctrl_info); | |
6c223761 | 3041 | |
6c223761 KB |
3042 | ctrl_info->heartbeat_timer.expires = |
3043 | jiffies + PQI_HEARTBEAT_TIMER_INTERVAL; | |
061ef06a | 3044 | add_timer(&ctrl_info->heartbeat_timer); |
6c223761 KB |
3045 | } |
3046 | ||
3047 | static inline void pqi_stop_heartbeat_timer(struct pqi_ctrl_info *ctrl_info) | |
3048 | { | |
98f87667 | 3049 | del_timer_sync(&ctrl_info->heartbeat_timer); |
6c223761 KB |
3050 | } |
3051 | ||
6a50d6ad | 3052 | static inline int pqi_event_type_to_event_index(unsigned int event_type) |
6c223761 KB |
3053 | { |
3054 | int index; | |
3055 | ||
6a50d6ad KB |
3056 | for (index = 0; index < ARRAY_SIZE(pqi_supported_event_types); index++) |
3057 | if (event_type == pqi_supported_event_types[index]) | |
3058 | return index; | |
6c223761 | 3059 | |
6a50d6ad KB |
3060 | return -1; |
3061 | } | |
3062 | ||
3063 | static inline bool pqi_is_supported_event(unsigned int event_type) | |
3064 | { | |
3065 | return pqi_event_type_to_event_index(event_type) != -1; | |
6c223761 KB |
3066 | } |
3067 | ||
3068 | static unsigned int pqi_process_event_intr(struct pqi_ctrl_info *ctrl_info) | |
3069 | { | |
3070 | unsigned int num_events; | |
3071 | pqi_index_t oq_pi; | |
3072 | pqi_index_t oq_ci; | |
3073 | struct pqi_event_queue *event_queue; | |
3074 | struct pqi_event_response *response; | |
6a50d6ad | 3075 | struct pqi_event *event; |
6c223761 KB |
3076 | int event_index; |
3077 | ||
3078 | event_queue = &ctrl_info->event_queue; | |
3079 | num_events = 0; | |
6c223761 KB |
3080 | oq_ci = event_queue->oq_ci_copy; |
3081 | ||
3082 | while (1) { | |
dac12fbc | 3083 | oq_pi = readl(event_queue->oq_pi); |
6c223761 KB |
3084 | if (oq_pi == oq_ci) |
3085 | break; | |
3086 | ||
3087 | num_events++; | |
3088 | response = event_queue->oq_element_array + | |
3089 | (oq_ci * PQI_EVENT_OQ_ELEMENT_LENGTH); | |
3090 | ||
3091 | event_index = | |
3092 | pqi_event_type_to_event_index(response->event_type); | |
3093 | ||
3094 | if (event_index >= 0) { | |
3095 | if (response->request_acknowlege) { | |
6a50d6ad KB |
3096 | event = &ctrl_info->events[event_index]; |
3097 | event->pending = true; | |
3098 | event->event_type = response->event_type; | |
3099 | event->event_id = response->event_id; | |
3100 | event->additional_event_id = | |
6c223761 | 3101 | response->additional_event_id; |
6c223761 KB |
3102 | } |
3103 | } | |
3104 | ||
3105 | oq_ci = (oq_ci + 1) % PQI_NUM_EVENT_QUEUE_ELEMENTS; | |
3106 | } | |
3107 | ||
3108 | if (num_events) { | |
3109 | event_queue->oq_ci_copy = oq_ci; | |
3110 | writel(oq_ci, event_queue->oq_ci); | |
98f87667 | 3111 | schedule_work(&ctrl_info->event_work); |
6c223761 KB |
3112 | } |
3113 | ||
3114 | return num_events; | |
3115 | } | |
3116 | ||
061ef06a KB |
3117 | #define PQI_LEGACY_INTX_MASK 0x1 |
3118 | ||
3119 | static inline void pqi_configure_legacy_intx(struct pqi_ctrl_info *ctrl_info, | |
3120 | bool enable_intx) | |
3121 | { | |
3122 | u32 intx_mask; | |
3123 | struct pqi_device_registers __iomem *pqi_registers; | |
3124 | volatile void __iomem *register_addr; | |
3125 | ||
3126 | pqi_registers = ctrl_info->pqi_registers; | |
3127 | ||
3128 | if (enable_intx) | |
3129 | register_addr = &pqi_registers->legacy_intx_mask_clear; | |
3130 | else | |
3131 | register_addr = &pqi_registers->legacy_intx_mask_set; | |
3132 | ||
3133 | intx_mask = readl(register_addr); | |
3134 | intx_mask |= PQI_LEGACY_INTX_MASK; | |
3135 | writel(intx_mask, register_addr); | |
3136 | } | |
3137 | ||
3138 | static void pqi_change_irq_mode(struct pqi_ctrl_info *ctrl_info, | |
3139 | enum pqi_irq_mode new_mode) | |
3140 | { | |
3141 | switch (ctrl_info->irq_mode) { | |
3142 | case IRQ_MODE_MSIX: | |
3143 | switch (new_mode) { | |
3144 | case IRQ_MODE_MSIX: | |
3145 | break; | |
3146 | case IRQ_MODE_INTX: | |
3147 | pqi_configure_legacy_intx(ctrl_info, true); | |
061ef06a KB |
3148 | sis_enable_intx(ctrl_info); |
3149 | break; | |
3150 | case IRQ_MODE_NONE: | |
061ef06a KB |
3151 | break; |
3152 | } | |
3153 | break; | |
3154 | case IRQ_MODE_INTX: | |
3155 | switch (new_mode) { | |
3156 | case IRQ_MODE_MSIX: | |
3157 | pqi_configure_legacy_intx(ctrl_info, false); | |
061ef06a KB |
3158 | sis_enable_msix(ctrl_info); |
3159 | break; | |
3160 | case IRQ_MODE_INTX: | |
3161 | break; | |
3162 | case IRQ_MODE_NONE: | |
3163 | pqi_configure_legacy_intx(ctrl_info, false); | |
061ef06a KB |
3164 | break; |
3165 | } | |
3166 | break; | |
3167 | case IRQ_MODE_NONE: | |
3168 | switch (new_mode) { | |
3169 | case IRQ_MODE_MSIX: | |
3170 | sis_enable_msix(ctrl_info); | |
3171 | break; | |
3172 | case IRQ_MODE_INTX: | |
3173 | pqi_configure_legacy_intx(ctrl_info, true); | |
3174 | sis_enable_intx(ctrl_info); | |
3175 | break; | |
3176 | case IRQ_MODE_NONE: | |
3177 | break; | |
3178 | } | |
3179 | break; | |
3180 | } | |
3181 | ||
3182 | ctrl_info->irq_mode = new_mode; | |
3183 | } | |
3184 | ||
3185 | #define PQI_LEGACY_INTX_PENDING 0x1 | |
3186 | ||
3187 | static inline bool pqi_is_valid_irq(struct pqi_ctrl_info *ctrl_info) | |
3188 | { | |
3189 | bool valid_irq; | |
3190 | u32 intx_status; | |
3191 | ||
3192 | switch (ctrl_info->irq_mode) { | |
3193 | case IRQ_MODE_MSIX: | |
3194 | valid_irq = true; | |
3195 | break; | |
3196 | case IRQ_MODE_INTX: | |
3197 | intx_status = | |
3198 | readl(&ctrl_info->pqi_registers->legacy_intx_status); | |
3199 | if (intx_status & PQI_LEGACY_INTX_PENDING) | |
3200 | valid_irq = true; | |
3201 | else | |
3202 | valid_irq = false; | |
3203 | break; | |
3204 | case IRQ_MODE_NONE: | |
3205 | default: | |
3206 | valid_irq = false; | |
3207 | break; | |
3208 | } | |
3209 | ||
3210 | return valid_irq; | |
3211 | } | |
3212 | ||
6c223761 KB |
3213 | static irqreturn_t pqi_irq_handler(int irq, void *data) |
3214 | { | |
3215 | struct pqi_ctrl_info *ctrl_info; | |
3216 | struct pqi_queue_group *queue_group; | |
3217 | unsigned int num_responses_handled; | |
3218 | ||
3219 | queue_group = data; | |
3220 | ctrl_info = queue_group->ctrl_info; | |
3221 | ||
061ef06a | 3222 | if (!pqi_is_valid_irq(ctrl_info)) |
6c223761 KB |
3223 | return IRQ_NONE; |
3224 | ||
3225 | num_responses_handled = pqi_process_io_intr(ctrl_info, queue_group); | |
3226 | ||
3227 | if (irq == ctrl_info->event_irq) | |
3228 | num_responses_handled += pqi_process_event_intr(ctrl_info); | |
3229 | ||
3230 | if (num_responses_handled) | |
3231 | atomic_inc(&ctrl_info->num_interrupts); | |
3232 | ||
3233 | pqi_start_io(ctrl_info, queue_group, RAID_PATH, NULL); | |
3234 | pqi_start_io(ctrl_info, queue_group, AIO_PATH, NULL); | |
3235 | ||
3236 | return IRQ_HANDLED; | |
3237 | } | |
3238 | ||
3239 | static int pqi_request_irqs(struct pqi_ctrl_info *ctrl_info) | |
3240 | { | |
d91d7820 | 3241 | struct pci_dev *pci_dev = ctrl_info->pci_dev; |
6c223761 KB |
3242 | int i; |
3243 | int rc; | |
3244 | ||
d91d7820 | 3245 | ctrl_info->event_irq = pci_irq_vector(pci_dev, 0); |
6c223761 KB |
3246 | |
3247 | for (i = 0; i < ctrl_info->num_msix_vectors_enabled; i++) { | |
d91d7820 | 3248 | rc = request_irq(pci_irq_vector(pci_dev, i), pqi_irq_handler, 0, |
52198226 | 3249 | DRIVER_NAME_SHORT, &ctrl_info->queue_groups[i]); |
6c223761 | 3250 | if (rc) { |
d91d7820 | 3251 | dev_err(&pci_dev->dev, |
6c223761 | 3252 | "irq %u init failed with error %d\n", |
d91d7820 | 3253 | pci_irq_vector(pci_dev, i), rc); |
6c223761 KB |
3254 | return rc; |
3255 | } | |
3256 | ctrl_info->num_msix_vectors_initialized++; | |
3257 | } | |
3258 | ||
3259 | return 0; | |
3260 | } | |
3261 | ||
98bf061b KB |
3262 | static void pqi_free_irqs(struct pqi_ctrl_info *ctrl_info) |
3263 | { | |
3264 | int i; | |
3265 | ||
3266 | for (i = 0; i < ctrl_info->num_msix_vectors_initialized; i++) | |
3267 | free_irq(pci_irq_vector(ctrl_info->pci_dev, i), | |
3268 | &ctrl_info->queue_groups[i]); | |
3269 | ||
3270 | ctrl_info->num_msix_vectors_initialized = 0; | |
3271 | } | |
3272 | ||
6c223761 KB |
3273 | static int pqi_enable_msix_interrupts(struct pqi_ctrl_info *ctrl_info) |
3274 | { | |
98bf061b | 3275 | int num_vectors_enabled; |
6c223761 | 3276 | |
98bf061b | 3277 | num_vectors_enabled = pci_alloc_irq_vectors(ctrl_info->pci_dev, |
52198226 CH |
3278 | PQI_MIN_MSIX_VECTORS, ctrl_info->num_queue_groups, |
3279 | PCI_IRQ_MSIX | PCI_IRQ_AFFINITY); | |
98bf061b | 3280 | if (num_vectors_enabled < 0) { |
6c223761 | 3281 | dev_err(&ctrl_info->pci_dev->dev, |
98bf061b KB |
3282 | "MSI-X init failed with error %d\n", |
3283 | num_vectors_enabled); | |
3284 | return num_vectors_enabled; | |
6c223761 KB |
3285 | } |
3286 | ||
98bf061b | 3287 | ctrl_info->num_msix_vectors_enabled = num_vectors_enabled; |
061ef06a | 3288 | ctrl_info->irq_mode = IRQ_MODE_MSIX; |
6c223761 KB |
3289 | return 0; |
3290 | } | |
3291 | ||
98bf061b KB |
3292 | static void pqi_disable_msix_interrupts(struct pqi_ctrl_info *ctrl_info) |
3293 | { | |
3294 | if (ctrl_info->num_msix_vectors_enabled) { | |
3295 | pci_free_irq_vectors(ctrl_info->pci_dev); | |
3296 | ctrl_info->num_msix_vectors_enabled = 0; | |
3297 | } | |
3298 | } | |
3299 | ||
6c223761 KB |
3300 | static int pqi_alloc_operational_queues(struct pqi_ctrl_info *ctrl_info) |
3301 | { | |
3302 | unsigned int i; | |
3303 | size_t alloc_length; | |
3304 | size_t element_array_length_per_iq; | |
3305 | size_t element_array_length_per_oq; | |
3306 | void *element_array; | |
dac12fbc | 3307 | void __iomem *next_queue_index; |
6c223761 KB |
3308 | void *aligned_pointer; |
3309 | unsigned int num_inbound_queues; | |
3310 | unsigned int num_outbound_queues; | |
3311 | unsigned int num_queue_indexes; | |
3312 | struct pqi_queue_group *queue_group; | |
3313 | ||
3314 | element_array_length_per_iq = | |
3315 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH * | |
3316 | ctrl_info->num_elements_per_iq; | |
3317 | element_array_length_per_oq = | |
3318 | PQI_OPERATIONAL_OQ_ELEMENT_LENGTH * | |
3319 | ctrl_info->num_elements_per_oq; | |
3320 | num_inbound_queues = ctrl_info->num_queue_groups * 2; | |
3321 | num_outbound_queues = ctrl_info->num_queue_groups; | |
3322 | num_queue_indexes = (ctrl_info->num_queue_groups * 3) + 1; | |
3323 | ||
3324 | aligned_pointer = NULL; | |
3325 | ||
3326 | for (i = 0; i < num_inbound_queues; i++) { | |
3327 | aligned_pointer = PTR_ALIGN(aligned_pointer, | |
3328 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); | |
3329 | aligned_pointer += element_array_length_per_iq; | |
3330 | } | |
3331 | ||
3332 | for (i = 0; i < num_outbound_queues; i++) { | |
3333 | aligned_pointer = PTR_ALIGN(aligned_pointer, | |
3334 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); | |
3335 | aligned_pointer += element_array_length_per_oq; | |
3336 | } | |
3337 | ||
3338 | aligned_pointer = PTR_ALIGN(aligned_pointer, | |
3339 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); | |
3340 | aligned_pointer += PQI_NUM_EVENT_QUEUE_ELEMENTS * | |
3341 | PQI_EVENT_OQ_ELEMENT_LENGTH; | |
3342 | ||
3343 | for (i = 0; i < num_queue_indexes; i++) { | |
3344 | aligned_pointer = PTR_ALIGN(aligned_pointer, | |
3345 | PQI_OPERATIONAL_INDEX_ALIGNMENT); | |
3346 | aligned_pointer += sizeof(pqi_index_t); | |
3347 | } | |
3348 | ||
3349 | alloc_length = (size_t)aligned_pointer + | |
3350 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT; | |
3351 | ||
e1d213bd KB |
3352 | alloc_length += PQI_EXTRA_SGL_MEMORY; |
3353 | ||
6c223761 KB |
3354 | ctrl_info->queue_memory_base = |
3355 | dma_zalloc_coherent(&ctrl_info->pci_dev->dev, | |
3356 | alloc_length, | |
3357 | &ctrl_info->queue_memory_base_dma_handle, GFP_KERNEL); | |
3358 | ||
d87d5474 | 3359 | if (!ctrl_info->queue_memory_base) |
6c223761 | 3360 | return -ENOMEM; |
6c223761 KB |
3361 | |
3362 | ctrl_info->queue_memory_length = alloc_length; | |
3363 | ||
3364 | element_array = PTR_ALIGN(ctrl_info->queue_memory_base, | |
3365 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); | |
3366 | ||
3367 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
3368 | queue_group = &ctrl_info->queue_groups[i]; | |
3369 | queue_group->iq_element_array[RAID_PATH] = element_array; | |
3370 | queue_group->iq_element_array_bus_addr[RAID_PATH] = | |
3371 | ctrl_info->queue_memory_base_dma_handle + | |
3372 | (element_array - ctrl_info->queue_memory_base); | |
3373 | element_array += element_array_length_per_iq; | |
3374 | element_array = PTR_ALIGN(element_array, | |
3375 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); | |
3376 | queue_group->iq_element_array[AIO_PATH] = element_array; | |
3377 | queue_group->iq_element_array_bus_addr[AIO_PATH] = | |
3378 | ctrl_info->queue_memory_base_dma_handle + | |
3379 | (element_array - ctrl_info->queue_memory_base); | |
3380 | element_array += element_array_length_per_iq; | |
3381 | element_array = PTR_ALIGN(element_array, | |
3382 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); | |
3383 | } | |
3384 | ||
3385 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
3386 | queue_group = &ctrl_info->queue_groups[i]; | |
3387 | queue_group->oq_element_array = element_array; | |
3388 | queue_group->oq_element_array_bus_addr = | |
3389 | ctrl_info->queue_memory_base_dma_handle + | |
3390 | (element_array - ctrl_info->queue_memory_base); | |
3391 | element_array += element_array_length_per_oq; | |
3392 | element_array = PTR_ALIGN(element_array, | |
3393 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); | |
3394 | } | |
3395 | ||
3396 | ctrl_info->event_queue.oq_element_array = element_array; | |
3397 | ctrl_info->event_queue.oq_element_array_bus_addr = | |
3398 | ctrl_info->queue_memory_base_dma_handle + | |
3399 | (element_array - ctrl_info->queue_memory_base); | |
3400 | element_array += PQI_NUM_EVENT_QUEUE_ELEMENTS * | |
3401 | PQI_EVENT_OQ_ELEMENT_LENGTH; | |
3402 | ||
dac12fbc | 3403 | next_queue_index = (void __iomem *)PTR_ALIGN(element_array, |
6c223761 KB |
3404 | PQI_OPERATIONAL_INDEX_ALIGNMENT); |
3405 | ||
3406 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
3407 | queue_group = &ctrl_info->queue_groups[i]; | |
3408 | queue_group->iq_ci[RAID_PATH] = next_queue_index; | |
3409 | queue_group->iq_ci_bus_addr[RAID_PATH] = | |
3410 | ctrl_info->queue_memory_base_dma_handle + | |
dac12fbc KB |
3411 | (next_queue_index - |
3412 | (void __iomem *)ctrl_info->queue_memory_base); | |
6c223761 KB |
3413 | next_queue_index += sizeof(pqi_index_t); |
3414 | next_queue_index = PTR_ALIGN(next_queue_index, | |
3415 | PQI_OPERATIONAL_INDEX_ALIGNMENT); | |
3416 | queue_group->iq_ci[AIO_PATH] = next_queue_index; | |
3417 | queue_group->iq_ci_bus_addr[AIO_PATH] = | |
3418 | ctrl_info->queue_memory_base_dma_handle + | |
dac12fbc KB |
3419 | (next_queue_index - |
3420 | (void __iomem *)ctrl_info->queue_memory_base); | |
6c223761 KB |
3421 | next_queue_index += sizeof(pqi_index_t); |
3422 | next_queue_index = PTR_ALIGN(next_queue_index, | |
3423 | PQI_OPERATIONAL_INDEX_ALIGNMENT); | |
3424 | queue_group->oq_pi = next_queue_index; | |
3425 | queue_group->oq_pi_bus_addr = | |
3426 | ctrl_info->queue_memory_base_dma_handle + | |
dac12fbc KB |
3427 | (next_queue_index - |
3428 | (void __iomem *)ctrl_info->queue_memory_base); | |
6c223761 KB |
3429 | next_queue_index += sizeof(pqi_index_t); |
3430 | next_queue_index = PTR_ALIGN(next_queue_index, | |
3431 | PQI_OPERATIONAL_INDEX_ALIGNMENT); | |
3432 | } | |
3433 | ||
3434 | ctrl_info->event_queue.oq_pi = next_queue_index; | |
3435 | ctrl_info->event_queue.oq_pi_bus_addr = | |
3436 | ctrl_info->queue_memory_base_dma_handle + | |
dac12fbc KB |
3437 | (next_queue_index - |
3438 | (void __iomem *)ctrl_info->queue_memory_base); | |
6c223761 KB |
3439 | |
3440 | return 0; | |
3441 | } | |
3442 | ||
3443 | static void pqi_init_operational_queues(struct pqi_ctrl_info *ctrl_info) | |
3444 | { | |
3445 | unsigned int i; | |
3446 | u16 next_iq_id = PQI_MIN_OPERATIONAL_QUEUE_ID; | |
3447 | u16 next_oq_id = PQI_MIN_OPERATIONAL_QUEUE_ID; | |
3448 | ||
3449 | /* | |
3450 | * Initialize the backpointers to the controller structure in | |
3451 | * each operational queue group structure. | |
3452 | */ | |
3453 | for (i = 0; i < ctrl_info->num_queue_groups; i++) | |
3454 | ctrl_info->queue_groups[i].ctrl_info = ctrl_info; | |
3455 | ||
3456 | /* | |
3457 | * Assign IDs to all operational queues. Note that the IDs | |
3458 | * assigned to operational IQs are independent of the IDs | |
3459 | * assigned to operational OQs. | |
3460 | */ | |
3461 | ctrl_info->event_queue.oq_id = next_oq_id++; | |
3462 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
3463 | ctrl_info->queue_groups[i].iq_id[RAID_PATH] = next_iq_id++; | |
3464 | ctrl_info->queue_groups[i].iq_id[AIO_PATH] = next_iq_id++; | |
3465 | ctrl_info->queue_groups[i].oq_id = next_oq_id++; | |
3466 | } | |
3467 | ||
3468 | /* | |
3469 | * Assign MSI-X table entry indexes to all queues. Note that the | |
3470 | * interrupt for the event queue is shared with the first queue group. | |
3471 | */ | |
3472 | ctrl_info->event_queue.int_msg_num = 0; | |
3473 | for (i = 0; i < ctrl_info->num_queue_groups; i++) | |
3474 | ctrl_info->queue_groups[i].int_msg_num = i; | |
3475 | ||
3476 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
3477 | spin_lock_init(&ctrl_info->queue_groups[i].submit_lock[0]); | |
3478 | spin_lock_init(&ctrl_info->queue_groups[i].submit_lock[1]); | |
3479 | INIT_LIST_HEAD(&ctrl_info->queue_groups[i].request_list[0]); | |
3480 | INIT_LIST_HEAD(&ctrl_info->queue_groups[i].request_list[1]); | |
3481 | } | |
3482 | } | |
3483 | ||
3484 | static int pqi_alloc_admin_queues(struct pqi_ctrl_info *ctrl_info) | |
3485 | { | |
3486 | size_t alloc_length; | |
3487 | struct pqi_admin_queues_aligned *admin_queues_aligned; | |
3488 | struct pqi_admin_queues *admin_queues; | |
3489 | ||
3490 | alloc_length = sizeof(struct pqi_admin_queues_aligned) + | |
3491 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT; | |
3492 | ||
3493 | ctrl_info->admin_queue_memory_base = | |
3494 | dma_zalloc_coherent(&ctrl_info->pci_dev->dev, | |
3495 | alloc_length, | |
3496 | &ctrl_info->admin_queue_memory_base_dma_handle, | |
3497 | GFP_KERNEL); | |
3498 | ||
3499 | if (!ctrl_info->admin_queue_memory_base) | |
3500 | return -ENOMEM; | |
3501 | ||
3502 | ctrl_info->admin_queue_memory_length = alloc_length; | |
3503 | ||
3504 | admin_queues = &ctrl_info->admin_queues; | |
3505 | admin_queues_aligned = PTR_ALIGN(ctrl_info->admin_queue_memory_base, | |
3506 | PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT); | |
3507 | admin_queues->iq_element_array = | |
3508 | &admin_queues_aligned->iq_element_array; | |
3509 | admin_queues->oq_element_array = | |
3510 | &admin_queues_aligned->oq_element_array; | |
3511 | admin_queues->iq_ci = &admin_queues_aligned->iq_ci; | |
dac12fbc KB |
3512 | admin_queues->oq_pi = |
3513 | (pqi_index_t __iomem *)&admin_queues_aligned->oq_pi; | |
6c223761 KB |
3514 | |
3515 | admin_queues->iq_element_array_bus_addr = | |
3516 | ctrl_info->admin_queue_memory_base_dma_handle + | |
3517 | (admin_queues->iq_element_array - | |
3518 | ctrl_info->admin_queue_memory_base); | |
3519 | admin_queues->oq_element_array_bus_addr = | |
3520 | ctrl_info->admin_queue_memory_base_dma_handle + | |
3521 | (admin_queues->oq_element_array - | |
3522 | ctrl_info->admin_queue_memory_base); | |
3523 | admin_queues->iq_ci_bus_addr = | |
3524 | ctrl_info->admin_queue_memory_base_dma_handle + | |
3525 | ((void *)admin_queues->iq_ci - | |
3526 | ctrl_info->admin_queue_memory_base); | |
3527 | admin_queues->oq_pi_bus_addr = | |
3528 | ctrl_info->admin_queue_memory_base_dma_handle + | |
dac12fbc KB |
3529 | ((void __iomem *)admin_queues->oq_pi - |
3530 | (void __iomem *)ctrl_info->admin_queue_memory_base); | |
6c223761 KB |
3531 | |
3532 | return 0; | |
3533 | } | |
3534 | ||
3535 | #define PQI_ADMIN_QUEUE_CREATE_TIMEOUT_JIFFIES HZ | |
3536 | #define PQI_ADMIN_QUEUE_CREATE_POLL_INTERVAL_MSECS 1 | |
3537 | ||
3538 | static int pqi_create_admin_queues(struct pqi_ctrl_info *ctrl_info) | |
3539 | { | |
3540 | struct pqi_device_registers __iomem *pqi_registers; | |
3541 | struct pqi_admin_queues *admin_queues; | |
3542 | unsigned long timeout; | |
3543 | u8 status; | |
3544 | u32 reg; | |
3545 | ||
3546 | pqi_registers = ctrl_info->pqi_registers; | |
3547 | admin_queues = &ctrl_info->admin_queues; | |
3548 | ||
3549 | writeq((u64)admin_queues->iq_element_array_bus_addr, | |
3550 | &pqi_registers->admin_iq_element_array_addr); | |
3551 | writeq((u64)admin_queues->oq_element_array_bus_addr, | |
3552 | &pqi_registers->admin_oq_element_array_addr); | |
3553 | writeq((u64)admin_queues->iq_ci_bus_addr, | |
3554 | &pqi_registers->admin_iq_ci_addr); | |
3555 | writeq((u64)admin_queues->oq_pi_bus_addr, | |
3556 | &pqi_registers->admin_oq_pi_addr); | |
3557 | ||
3558 | reg = PQI_ADMIN_IQ_NUM_ELEMENTS | | |
3559 | (PQI_ADMIN_OQ_NUM_ELEMENTS) << 8 | | |
3560 | (admin_queues->int_msg_num << 16); | |
3561 | writel(reg, &pqi_registers->admin_iq_num_elements); | |
3562 | writel(PQI_CREATE_ADMIN_QUEUE_PAIR, | |
3563 | &pqi_registers->function_and_status_code); | |
3564 | ||
3565 | timeout = PQI_ADMIN_QUEUE_CREATE_TIMEOUT_JIFFIES + jiffies; | |
3566 | while (1) { | |
3567 | status = readb(&pqi_registers->function_and_status_code); | |
3568 | if (status == PQI_STATUS_IDLE) | |
3569 | break; | |
3570 | if (time_after(jiffies, timeout)) | |
3571 | return -ETIMEDOUT; | |
3572 | msleep(PQI_ADMIN_QUEUE_CREATE_POLL_INTERVAL_MSECS); | |
3573 | } | |
3574 | ||
3575 | /* | |
3576 | * The offset registers are not initialized to the correct | |
3577 | * offsets until *after* the create admin queue pair command | |
3578 | * completes successfully. | |
3579 | */ | |
3580 | admin_queues->iq_pi = ctrl_info->iomem_base + | |
3581 | PQI_DEVICE_REGISTERS_OFFSET + | |
3582 | readq(&pqi_registers->admin_iq_pi_offset); | |
3583 | admin_queues->oq_ci = ctrl_info->iomem_base + | |
3584 | PQI_DEVICE_REGISTERS_OFFSET + | |
3585 | readq(&pqi_registers->admin_oq_ci_offset); | |
3586 | ||
3587 | return 0; | |
3588 | } | |
3589 | ||
3590 | static void pqi_submit_admin_request(struct pqi_ctrl_info *ctrl_info, | |
3591 | struct pqi_general_admin_request *request) | |
3592 | { | |
3593 | struct pqi_admin_queues *admin_queues; | |
3594 | void *next_element; | |
3595 | pqi_index_t iq_pi; | |
3596 | ||
3597 | admin_queues = &ctrl_info->admin_queues; | |
3598 | iq_pi = admin_queues->iq_pi_copy; | |
3599 | ||
3600 | next_element = admin_queues->iq_element_array + | |
3601 | (iq_pi * PQI_ADMIN_IQ_ELEMENT_LENGTH); | |
3602 | ||
3603 | memcpy(next_element, request, sizeof(*request)); | |
3604 | ||
3605 | iq_pi = (iq_pi + 1) % PQI_ADMIN_IQ_NUM_ELEMENTS; | |
3606 | admin_queues->iq_pi_copy = iq_pi; | |
3607 | ||
3608 | /* | |
3609 | * This write notifies the controller that an IU is available to be | |
3610 | * processed. | |
3611 | */ | |
3612 | writel(iq_pi, admin_queues->iq_pi); | |
3613 | } | |
3614 | ||
13bede67 KB |
3615 | #define PQI_ADMIN_REQUEST_TIMEOUT_SECS 60 |
3616 | ||
6c223761 KB |
3617 | static int pqi_poll_for_admin_response(struct pqi_ctrl_info *ctrl_info, |
3618 | struct pqi_general_admin_response *response) | |
3619 | { | |
3620 | struct pqi_admin_queues *admin_queues; | |
3621 | pqi_index_t oq_pi; | |
3622 | pqi_index_t oq_ci; | |
3623 | unsigned long timeout; | |
3624 | ||
3625 | admin_queues = &ctrl_info->admin_queues; | |
3626 | oq_ci = admin_queues->oq_ci_copy; | |
3627 | ||
13bede67 | 3628 | timeout = (PQI_ADMIN_REQUEST_TIMEOUT_SECS * HZ) + jiffies; |
6c223761 KB |
3629 | |
3630 | while (1) { | |
dac12fbc | 3631 | oq_pi = readl(admin_queues->oq_pi); |
6c223761 KB |
3632 | if (oq_pi != oq_ci) |
3633 | break; | |
3634 | if (time_after(jiffies, timeout)) { | |
3635 | dev_err(&ctrl_info->pci_dev->dev, | |
3636 | "timed out waiting for admin response\n"); | |
3637 | return -ETIMEDOUT; | |
3638 | } | |
13bede67 KB |
3639 | if (!sis_is_firmware_running(ctrl_info)) |
3640 | return -ENXIO; | |
6c223761 KB |
3641 | usleep_range(1000, 2000); |
3642 | } | |
3643 | ||
3644 | memcpy(response, admin_queues->oq_element_array + | |
3645 | (oq_ci * PQI_ADMIN_OQ_ELEMENT_LENGTH), sizeof(*response)); | |
3646 | ||
3647 | oq_ci = (oq_ci + 1) % PQI_ADMIN_OQ_NUM_ELEMENTS; | |
3648 | admin_queues->oq_ci_copy = oq_ci; | |
3649 | writel(oq_ci, admin_queues->oq_ci); | |
3650 | ||
3651 | return 0; | |
3652 | } | |
3653 | ||
3654 | static void pqi_start_io(struct pqi_ctrl_info *ctrl_info, | |
3655 | struct pqi_queue_group *queue_group, enum pqi_io_path path, | |
3656 | struct pqi_io_request *io_request) | |
3657 | { | |
3658 | struct pqi_io_request *next; | |
3659 | void *next_element; | |
3660 | pqi_index_t iq_pi; | |
3661 | pqi_index_t iq_ci; | |
3662 | size_t iu_length; | |
3663 | unsigned long flags; | |
3664 | unsigned int num_elements_needed; | |
3665 | unsigned int num_elements_to_end_of_queue; | |
3666 | size_t copy_count; | |
3667 | struct pqi_iu_header *request; | |
3668 | ||
3669 | spin_lock_irqsave(&queue_group->submit_lock[path], flags); | |
3670 | ||
376fb880 KB |
3671 | if (io_request) { |
3672 | io_request->queue_group = queue_group; | |
6c223761 KB |
3673 | list_add_tail(&io_request->request_list_entry, |
3674 | &queue_group->request_list[path]); | |
376fb880 | 3675 | } |
6c223761 KB |
3676 | |
3677 | iq_pi = queue_group->iq_pi_copy[path]; | |
3678 | ||
3679 | list_for_each_entry_safe(io_request, next, | |
3680 | &queue_group->request_list[path], request_list_entry) { | |
3681 | ||
3682 | request = io_request->iu; | |
3683 | ||
3684 | iu_length = get_unaligned_le16(&request->iu_length) + | |
3685 | PQI_REQUEST_HEADER_LENGTH; | |
3686 | num_elements_needed = | |
3687 | DIV_ROUND_UP(iu_length, | |
3688 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); | |
3689 | ||
dac12fbc | 3690 | iq_ci = readl(queue_group->iq_ci[path]); |
6c223761 KB |
3691 | |
3692 | if (num_elements_needed > pqi_num_elements_free(iq_pi, iq_ci, | |
3693 | ctrl_info->num_elements_per_iq)) | |
3694 | break; | |
3695 | ||
3696 | put_unaligned_le16(queue_group->oq_id, | |
3697 | &request->response_queue_id); | |
3698 | ||
3699 | next_element = queue_group->iq_element_array[path] + | |
3700 | (iq_pi * PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); | |
3701 | ||
3702 | num_elements_to_end_of_queue = | |
3703 | ctrl_info->num_elements_per_iq - iq_pi; | |
3704 | ||
3705 | if (num_elements_needed <= num_elements_to_end_of_queue) { | |
3706 | memcpy(next_element, request, iu_length); | |
3707 | } else { | |
3708 | copy_count = num_elements_to_end_of_queue * | |
3709 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH; | |
3710 | memcpy(next_element, request, copy_count); | |
3711 | memcpy(queue_group->iq_element_array[path], | |
3712 | (u8 *)request + copy_count, | |
3713 | iu_length - copy_count); | |
3714 | } | |
3715 | ||
3716 | iq_pi = (iq_pi + num_elements_needed) % | |
3717 | ctrl_info->num_elements_per_iq; | |
3718 | ||
3719 | list_del(&io_request->request_list_entry); | |
3720 | } | |
3721 | ||
3722 | if (iq_pi != queue_group->iq_pi_copy[path]) { | |
3723 | queue_group->iq_pi_copy[path] = iq_pi; | |
3724 | /* | |
3725 | * This write notifies the controller that one or more IUs are | |
3726 | * available to be processed. | |
3727 | */ | |
3728 | writel(iq_pi, queue_group->iq_pi[path]); | |
3729 | } | |
3730 | ||
3731 | spin_unlock_irqrestore(&queue_group->submit_lock[path], flags); | |
3732 | } | |
3733 | ||
1f37e992 KB |
3734 | #define PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS 10 |
3735 | ||
3736 | static int pqi_wait_for_completion_io(struct pqi_ctrl_info *ctrl_info, | |
3737 | struct completion *wait) | |
3738 | { | |
3739 | int rc; | |
1f37e992 KB |
3740 | |
3741 | while (1) { | |
3742 | if (wait_for_completion_io_timeout(wait, | |
3743 | PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS * HZ)) { | |
3744 | rc = 0; | |
3745 | break; | |
3746 | } | |
3747 | ||
3748 | pqi_check_ctrl_health(ctrl_info); | |
3749 | if (pqi_ctrl_offline(ctrl_info)) { | |
3750 | rc = -ENXIO; | |
3751 | break; | |
3752 | } | |
1f37e992 KB |
3753 | } |
3754 | ||
3755 | return rc; | |
3756 | } | |
3757 | ||
6c223761 KB |
3758 | static void pqi_raid_synchronous_complete(struct pqi_io_request *io_request, |
3759 | void *context) | |
3760 | { | |
3761 | struct completion *waiting = context; | |
3762 | ||
3763 | complete(waiting); | |
3764 | } | |
3765 | ||
26b390ab KB |
3766 | static int pqi_process_raid_io_error_synchronous(struct pqi_raid_error_info |
3767 | *error_info) | |
3768 | { | |
3769 | int rc = -EIO; | |
3770 | ||
3771 | switch (error_info->data_out_result) { | |
3772 | case PQI_DATA_IN_OUT_GOOD: | |
3773 | if (error_info->status == SAM_STAT_GOOD) | |
3774 | rc = 0; | |
3775 | break; | |
3776 | case PQI_DATA_IN_OUT_UNDERFLOW: | |
3777 | if (error_info->status == SAM_STAT_GOOD || | |
3778 | error_info->status == SAM_STAT_CHECK_CONDITION) | |
3779 | rc = 0; | |
3780 | break; | |
3781 | case PQI_DATA_IN_OUT_ABORTED: | |
3782 | rc = PQI_CMD_STATUS_ABORTED; | |
3783 | break; | |
3784 | } | |
3785 | ||
3786 | return rc; | |
3787 | } | |
3788 | ||
6c223761 KB |
3789 | static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info, |
3790 | struct pqi_iu_header *request, unsigned int flags, | |
3791 | struct pqi_raid_error_info *error_info, unsigned long timeout_msecs) | |
3792 | { | |
957c5ab1 | 3793 | int rc = 0; |
6c223761 KB |
3794 | struct pqi_io_request *io_request; |
3795 | unsigned long start_jiffies; | |
3796 | unsigned long msecs_blocked; | |
3797 | size_t iu_length; | |
957c5ab1 | 3798 | DECLARE_COMPLETION_ONSTACK(wait); |
6c223761 KB |
3799 | |
3800 | /* | |
3801 | * Note that specifying PQI_SYNC_FLAGS_INTERRUPTABLE and a timeout value | |
3802 | * are mutually exclusive. | |
3803 | */ | |
3804 | ||
3805 | if (flags & PQI_SYNC_FLAGS_INTERRUPTABLE) { | |
3806 | if (down_interruptible(&ctrl_info->sync_request_sem)) | |
3807 | return -ERESTARTSYS; | |
3808 | } else { | |
3809 | if (timeout_msecs == NO_TIMEOUT) { | |
3810 | down(&ctrl_info->sync_request_sem); | |
3811 | } else { | |
3812 | start_jiffies = jiffies; | |
3813 | if (down_timeout(&ctrl_info->sync_request_sem, | |
3814 | msecs_to_jiffies(timeout_msecs))) | |
3815 | return -ETIMEDOUT; | |
3816 | msecs_blocked = | |
3817 | jiffies_to_msecs(jiffies - start_jiffies); | |
3818 | if (msecs_blocked >= timeout_msecs) | |
3819 | return -ETIMEDOUT; | |
3820 | timeout_msecs -= msecs_blocked; | |
3821 | } | |
3822 | } | |
3823 | ||
7561a7e4 KB |
3824 | pqi_ctrl_busy(ctrl_info); |
3825 | timeout_msecs = pqi_wait_if_ctrl_blocked(ctrl_info, timeout_msecs); | |
3826 | if (timeout_msecs == 0) { | |
957c5ab1 | 3827 | pqi_ctrl_unbusy(ctrl_info); |
7561a7e4 KB |
3828 | rc = -ETIMEDOUT; |
3829 | goto out; | |
3830 | } | |
3831 | ||
376fb880 | 3832 | if (pqi_ctrl_offline(ctrl_info)) { |
957c5ab1 | 3833 | pqi_ctrl_unbusy(ctrl_info); |
376fb880 KB |
3834 | rc = -ENXIO; |
3835 | goto out; | |
3836 | } | |
3837 | ||
6c223761 KB |
3838 | io_request = pqi_alloc_io_request(ctrl_info); |
3839 | ||
3840 | put_unaligned_le16(io_request->index, | |
3841 | &(((struct pqi_raid_path_request *)request)->request_id)); | |
3842 | ||
3843 | if (request->iu_type == PQI_REQUEST_IU_RAID_PATH_IO) | |
3844 | ((struct pqi_raid_path_request *)request)->error_index = | |
3845 | ((struct pqi_raid_path_request *)request)->request_id; | |
3846 | ||
3847 | iu_length = get_unaligned_le16(&request->iu_length) + | |
3848 | PQI_REQUEST_HEADER_LENGTH; | |
3849 | memcpy(io_request->iu, request, iu_length); | |
3850 | ||
957c5ab1 KB |
3851 | io_request->io_complete_callback = pqi_raid_synchronous_complete; |
3852 | io_request->context = &wait; | |
3853 | ||
3854 | pqi_start_io(ctrl_info, | |
3855 | &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH, | |
3856 | io_request); | |
3857 | ||
3858 | pqi_ctrl_unbusy(ctrl_info); | |
3859 | ||
3860 | if (timeout_msecs == NO_TIMEOUT) { | |
3861 | pqi_wait_for_completion_io(ctrl_info, &wait); | |
3862 | } else { | |
3863 | if (!wait_for_completion_io_timeout(&wait, | |
3864 | msecs_to_jiffies(timeout_msecs))) { | |
3865 | dev_warn(&ctrl_info->pci_dev->dev, | |
3866 | "command timed out\n"); | |
3867 | rc = -ETIMEDOUT; | |
3868 | } | |
3869 | } | |
6c223761 KB |
3870 | |
3871 | if (error_info) { | |
3872 | if (io_request->error_info) | |
3873 | memcpy(error_info, io_request->error_info, | |
3874 | sizeof(*error_info)); | |
3875 | else | |
3876 | memset(error_info, 0, sizeof(*error_info)); | |
3877 | } else if (rc == 0 && io_request->error_info) { | |
26b390ab KB |
3878 | rc = pqi_process_raid_io_error_synchronous( |
3879 | io_request->error_info); | |
6c223761 KB |
3880 | } |
3881 | ||
3882 | pqi_free_io_request(io_request); | |
3883 | ||
7561a7e4 | 3884 | out: |
6c223761 KB |
3885 | up(&ctrl_info->sync_request_sem); |
3886 | ||
3887 | return rc; | |
3888 | } | |
3889 | ||
3890 | static int pqi_validate_admin_response( | |
3891 | struct pqi_general_admin_response *response, u8 expected_function_code) | |
3892 | { | |
3893 | if (response->header.iu_type != PQI_RESPONSE_IU_GENERAL_ADMIN) | |
3894 | return -EINVAL; | |
3895 | ||
3896 | if (get_unaligned_le16(&response->header.iu_length) != | |
3897 | PQI_GENERAL_ADMIN_IU_LENGTH) | |
3898 | return -EINVAL; | |
3899 | ||
3900 | if (response->function_code != expected_function_code) | |
3901 | return -EINVAL; | |
3902 | ||
3903 | if (response->status != PQI_GENERAL_ADMIN_STATUS_SUCCESS) | |
3904 | return -EINVAL; | |
3905 | ||
3906 | return 0; | |
3907 | } | |
3908 | ||
3909 | static int pqi_submit_admin_request_synchronous( | |
3910 | struct pqi_ctrl_info *ctrl_info, | |
3911 | struct pqi_general_admin_request *request, | |
3912 | struct pqi_general_admin_response *response) | |
3913 | { | |
3914 | int rc; | |
3915 | ||
3916 | pqi_submit_admin_request(ctrl_info, request); | |
3917 | ||
3918 | rc = pqi_poll_for_admin_response(ctrl_info, response); | |
3919 | ||
3920 | if (rc == 0) | |
3921 | rc = pqi_validate_admin_response(response, | |
3922 | request->function_code); | |
3923 | ||
3924 | return rc; | |
3925 | } | |
3926 | ||
3927 | static int pqi_report_device_capability(struct pqi_ctrl_info *ctrl_info) | |
3928 | { | |
3929 | int rc; | |
3930 | struct pqi_general_admin_request request; | |
3931 | struct pqi_general_admin_response response; | |
3932 | struct pqi_device_capability *capability; | |
3933 | struct pqi_iu_layer_descriptor *sop_iu_layer_descriptor; | |
3934 | ||
3935 | capability = kmalloc(sizeof(*capability), GFP_KERNEL); | |
3936 | if (!capability) | |
3937 | return -ENOMEM; | |
3938 | ||
3939 | memset(&request, 0, sizeof(request)); | |
3940 | ||
3941 | request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; | |
3942 | put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, | |
3943 | &request.header.iu_length); | |
3944 | request.function_code = | |
3945 | PQI_GENERAL_ADMIN_FUNCTION_REPORT_DEVICE_CAPABILITY; | |
3946 | put_unaligned_le32(sizeof(*capability), | |
3947 | &request.data.report_device_capability.buffer_length); | |
3948 | ||
3949 | rc = pqi_map_single(ctrl_info->pci_dev, | |
3950 | &request.data.report_device_capability.sg_descriptor, | |
3951 | capability, sizeof(*capability), | |
6917a9cc | 3952 | DMA_FROM_DEVICE); |
6c223761 KB |
3953 | if (rc) |
3954 | goto out; | |
3955 | ||
3956 | rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, | |
3957 | &response); | |
3958 | ||
3959 | pqi_pci_unmap(ctrl_info->pci_dev, | |
3960 | &request.data.report_device_capability.sg_descriptor, 1, | |
6917a9cc | 3961 | DMA_FROM_DEVICE); |
6c223761 KB |
3962 | |
3963 | if (rc) | |
3964 | goto out; | |
3965 | ||
3966 | if (response.status != PQI_GENERAL_ADMIN_STATUS_SUCCESS) { | |
3967 | rc = -EIO; | |
3968 | goto out; | |
3969 | } | |
3970 | ||
3971 | ctrl_info->max_inbound_queues = | |
3972 | get_unaligned_le16(&capability->max_inbound_queues); | |
3973 | ctrl_info->max_elements_per_iq = | |
3974 | get_unaligned_le16(&capability->max_elements_per_iq); | |
3975 | ctrl_info->max_iq_element_length = | |
3976 | get_unaligned_le16(&capability->max_iq_element_length) | |
3977 | * 16; | |
3978 | ctrl_info->max_outbound_queues = | |
3979 | get_unaligned_le16(&capability->max_outbound_queues); | |
3980 | ctrl_info->max_elements_per_oq = | |
3981 | get_unaligned_le16(&capability->max_elements_per_oq); | |
3982 | ctrl_info->max_oq_element_length = | |
3983 | get_unaligned_le16(&capability->max_oq_element_length) | |
3984 | * 16; | |
3985 | ||
3986 | sop_iu_layer_descriptor = | |
3987 | &capability->iu_layer_descriptors[PQI_PROTOCOL_SOP]; | |
3988 | ||
3989 | ctrl_info->max_inbound_iu_length_per_firmware = | |
3990 | get_unaligned_le16( | |
3991 | &sop_iu_layer_descriptor->max_inbound_iu_length); | |
3992 | ctrl_info->inbound_spanning_supported = | |
3993 | sop_iu_layer_descriptor->inbound_spanning_supported; | |
3994 | ctrl_info->outbound_spanning_supported = | |
3995 | sop_iu_layer_descriptor->outbound_spanning_supported; | |
3996 | ||
3997 | out: | |
3998 | kfree(capability); | |
3999 | ||
4000 | return rc; | |
4001 | } | |
4002 | ||
4003 | static int pqi_validate_device_capability(struct pqi_ctrl_info *ctrl_info) | |
4004 | { | |
4005 | if (ctrl_info->max_iq_element_length < | |
4006 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) { | |
4007 | dev_err(&ctrl_info->pci_dev->dev, | |
4008 | "max. inbound queue element length of %d is less than the required length of %d\n", | |
4009 | ctrl_info->max_iq_element_length, | |
4010 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); | |
4011 | return -EINVAL; | |
4012 | } | |
4013 | ||
4014 | if (ctrl_info->max_oq_element_length < | |
4015 | PQI_OPERATIONAL_OQ_ELEMENT_LENGTH) { | |
4016 | dev_err(&ctrl_info->pci_dev->dev, | |
4017 | "max. outbound queue element length of %d is less than the required length of %d\n", | |
4018 | ctrl_info->max_oq_element_length, | |
4019 | PQI_OPERATIONAL_OQ_ELEMENT_LENGTH); | |
4020 | return -EINVAL; | |
4021 | } | |
4022 | ||
4023 | if (ctrl_info->max_inbound_iu_length_per_firmware < | |
4024 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) { | |
4025 | dev_err(&ctrl_info->pci_dev->dev, | |
4026 | "max. inbound IU length of %u is less than the min. required length of %d\n", | |
4027 | ctrl_info->max_inbound_iu_length_per_firmware, | |
4028 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); | |
4029 | return -EINVAL; | |
4030 | } | |
4031 | ||
77668f41 KB |
4032 | if (!ctrl_info->inbound_spanning_supported) { |
4033 | dev_err(&ctrl_info->pci_dev->dev, | |
4034 | "the controller does not support inbound spanning\n"); | |
4035 | return -EINVAL; | |
4036 | } | |
4037 | ||
4038 | if (ctrl_info->outbound_spanning_supported) { | |
4039 | dev_err(&ctrl_info->pci_dev->dev, | |
4040 | "the controller supports outbound spanning but this driver does not\n"); | |
4041 | return -EINVAL; | |
4042 | } | |
4043 | ||
6c223761 KB |
4044 | return 0; |
4045 | } | |
4046 | ||
6c223761 KB |
4047 | static int pqi_create_event_queue(struct pqi_ctrl_info *ctrl_info) |
4048 | { | |
4049 | int rc; | |
4050 | struct pqi_event_queue *event_queue; | |
4051 | struct pqi_general_admin_request request; | |
4052 | struct pqi_general_admin_response response; | |
4053 | ||
4054 | event_queue = &ctrl_info->event_queue; | |
4055 | ||
4056 | /* | |
4057 | * Create OQ (Outbound Queue - device to host queue) to dedicate | |
4058 | * to events. | |
4059 | */ | |
4060 | memset(&request, 0, sizeof(request)); | |
4061 | request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; | |
4062 | put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, | |
4063 | &request.header.iu_length); | |
4064 | request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ; | |
4065 | put_unaligned_le16(event_queue->oq_id, | |
4066 | &request.data.create_operational_oq.queue_id); | |
4067 | put_unaligned_le64((u64)event_queue->oq_element_array_bus_addr, | |
4068 | &request.data.create_operational_oq.element_array_addr); | |
4069 | put_unaligned_le64((u64)event_queue->oq_pi_bus_addr, | |
4070 | &request.data.create_operational_oq.pi_addr); | |
4071 | put_unaligned_le16(PQI_NUM_EVENT_QUEUE_ELEMENTS, | |
4072 | &request.data.create_operational_oq.num_elements); | |
4073 | put_unaligned_le16(PQI_EVENT_OQ_ELEMENT_LENGTH / 16, | |
4074 | &request.data.create_operational_oq.element_length); | |
4075 | request.data.create_operational_oq.queue_protocol = PQI_PROTOCOL_SOP; | |
4076 | put_unaligned_le16(event_queue->int_msg_num, | |
4077 | &request.data.create_operational_oq.int_msg_num); | |
4078 | ||
4079 | rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, | |
4080 | &response); | |
4081 | if (rc) | |
4082 | return rc; | |
4083 | ||
4084 | event_queue->oq_ci = ctrl_info->iomem_base + | |
4085 | PQI_DEVICE_REGISTERS_OFFSET + | |
4086 | get_unaligned_le64( | |
4087 | &response.data.create_operational_oq.oq_ci_offset); | |
4088 | ||
4089 | return 0; | |
4090 | } | |
4091 | ||
061ef06a KB |
4092 | static int pqi_create_queue_group(struct pqi_ctrl_info *ctrl_info, |
4093 | unsigned int group_number) | |
6c223761 | 4094 | { |
6c223761 KB |
4095 | int rc; |
4096 | struct pqi_queue_group *queue_group; | |
4097 | struct pqi_general_admin_request request; | |
4098 | struct pqi_general_admin_response response; | |
4099 | ||
061ef06a | 4100 | queue_group = &ctrl_info->queue_groups[group_number]; |
6c223761 KB |
4101 | |
4102 | /* | |
4103 | * Create IQ (Inbound Queue - host to device queue) for | |
4104 | * RAID path. | |
4105 | */ | |
4106 | memset(&request, 0, sizeof(request)); | |
4107 | request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; | |
4108 | put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, | |
4109 | &request.header.iu_length); | |
4110 | request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ; | |
4111 | put_unaligned_le16(queue_group->iq_id[RAID_PATH], | |
4112 | &request.data.create_operational_iq.queue_id); | |
4113 | put_unaligned_le64( | |
4114 | (u64)queue_group->iq_element_array_bus_addr[RAID_PATH], | |
4115 | &request.data.create_operational_iq.element_array_addr); | |
4116 | put_unaligned_le64((u64)queue_group->iq_ci_bus_addr[RAID_PATH], | |
4117 | &request.data.create_operational_iq.ci_addr); | |
4118 | put_unaligned_le16(ctrl_info->num_elements_per_iq, | |
4119 | &request.data.create_operational_iq.num_elements); | |
4120 | put_unaligned_le16(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH / 16, | |
4121 | &request.data.create_operational_iq.element_length); | |
4122 | request.data.create_operational_iq.queue_protocol = PQI_PROTOCOL_SOP; | |
4123 | ||
4124 | rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, | |
4125 | &response); | |
4126 | if (rc) { | |
4127 | dev_err(&ctrl_info->pci_dev->dev, | |
4128 | "error creating inbound RAID queue\n"); | |
4129 | return rc; | |
4130 | } | |
4131 | ||
4132 | queue_group->iq_pi[RAID_PATH] = ctrl_info->iomem_base + | |
4133 | PQI_DEVICE_REGISTERS_OFFSET + | |
4134 | get_unaligned_le64( | |
4135 | &response.data.create_operational_iq.iq_pi_offset); | |
4136 | ||
4137 | /* | |
4138 | * Create IQ (Inbound Queue - host to device queue) for | |
4139 | * Advanced I/O (AIO) path. | |
4140 | */ | |
4141 | memset(&request, 0, sizeof(request)); | |
4142 | request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; | |
4143 | put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, | |
4144 | &request.header.iu_length); | |
4145 | request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ; | |
4146 | put_unaligned_le16(queue_group->iq_id[AIO_PATH], | |
4147 | &request.data.create_operational_iq.queue_id); | |
4148 | put_unaligned_le64((u64)queue_group-> | |
4149 | iq_element_array_bus_addr[AIO_PATH], | |
4150 | &request.data.create_operational_iq.element_array_addr); | |
4151 | put_unaligned_le64((u64)queue_group->iq_ci_bus_addr[AIO_PATH], | |
4152 | &request.data.create_operational_iq.ci_addr); | |
4153 | put_unaligned_le16(ctrl_info->num_elements_per_iq, | |
4154 | &request.data.create_operational_iq.num_elements); | |
4155 | put_unaligned_le16(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH / 16, | |
4156 | &request.data.create_operational_iq.element_length); | |
4157 | request.data.create_operational_iq.queue_protocol = PQI_PROTOCOL_SOP; | |
4158 | ||
4159 | rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, | |
4160 | &response); | |
4161 | if (rc) { | |
4162 | dev_err(&ctrl_info->pci_dev->dev, | |
4163 | "error creating inbound AIO queue\n"); | |
339faa81 | 4164 | return rc; |
6c223761 KB |
4165 | } |
4166 | ||
4167 | queue_group->iq_pi[AIO_PATH] = ctrl_info->iomem_base + | |
4168 | PQI_DEVICE_REGISTERS_OFFSET + | |
4169 | get_unaligned_le64( | |
4170 | &response.data.create_operational_iq.iq_pi_offset); | |
4171 | ||
4172 | /* | |
4173 | * Designate the 2nd IQ as the AIO path. By default, all IQs are | |
4174 | * assumed to be for RAID path I/O unless we change the queue's | |
4175 | * property. | |
4176 | */ | |
4177 | memset(&request, 0, sizeof(request)); | |
4178 | request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; | |
4179 | put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, | |
4180 | &request.header.iu_length); | |
4181 | request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CHANGE_IQ_PROPERTY; | |
4182 | put_unaligned_le16(queue_group->iq_id[AIO_PATH], | |
4183 | &request.data.change_operational_iq_properties.queue_id); | |
4184 | put_unaligned_le32(PQI_IQ_PROPERTY_IS_AIO_QUEUE, | |
4185 | &request.data.change_operational_iq_properties.vendor_specific); | |
4186 | ||
4187 | rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, | |
4188 | &response); | |
4189 | if (rc) { | |
4190 | dev_err(&ctrl_info->pci_dev->dev, | |
4191 | "error changing queue property\n"); | |
339faa81 | 4192 | return rc; |
6c223761 KB |
4193 | } |
4194 | ||
4195 | /* | |
4196 | * Create OQ (Outbound Queue - device to host queue). | |
4197 | */ | |
4198 | memset(&request, 0, sizeof(request)); | |
4199 | request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN; | |
4200 | put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH, | |
4201 | &request.header.iu_length); | |
4202 | request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ; | |
4203 | put_unaligned_le16(queue_group->oq_id, | |
4204 | &request.data.create_operational_oq.queue_id); | |
4205 | put_unaligned_le64((u64)queue_group->oq_element_array_bus_addr, | |
4206 | &request.data.create_operational_oq.element_array_addr); | |
4207 | put_unaligned_le64((u64)queue_group->oq_pi_bus_addr, | |
4208 | &request.data.create_operational_oq.pi_addr); | |
4209 | put_unaligned_le16(ctrl_info->num_elements_per_oq, | |
4210 | &request.data.create_operational_oq.num_elements); | |
4211 | put_unaligned_le16(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH / 16, | |
4212 | &request.data.create_operational_oq.element_length); | |
4213 | request.data.create_operational_oq.queue_protocol = PQI_PROTOCOL_SOP; | |
4214 | put_unaligned_le16(queue_group->int_msg_num, | |
4215 | &request.data.create_operational_oq.int_msg_num); | |
4216 | ||
4217 | rc = pqi_submit_admin_request_synchronous(ctrl_info, &request, | |
4218 | &response); | |
4219 | if (rc) { | |
4220 | dev_err(&ctrl_info->pci_dev->dev, | |
4221 | "error creating outbound queue\n"); | |
339faa81 | 4222 | return rc; |
6c223761 KB |
4223 | } |
4224 | ||
4225 | queue_group->oq_ci = ctrl_info->iomem_base + | |
4226 | PQI_DEVICE_REGISTERS_OFFSET + | |
4227 | get_unaligned_le64( | |
4228 | &response.data.create_operational_oq.oq_ci_offset); | |
4229 | ||
6c223761 | 4230 | return 0; |
6c223761 KB |
4231 | } |
4232 | ||
4233 | static int pqi_create_queues(struct pqi_ctrl_info *ctrl_info) | |
4234 | { | |
4235 | int rc; | |
4236 | unsigned int i; | |
4237 | ||
4238 | rc = pqi_create_event_queue(ctrl_info); | |
4239 | if (rc) { | |
4240 | dev_err(&ctrl_info->pci_dev->dev, | |
4241 | "error creating event queue\n"); | |
4242 | return rc; | |
4243 | } | |
4244 | ||
4245 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
061ef06a | 4246 | rc = pqi_create_queue_group(ctrl_info, i); |
6c223761 KB |
4247 | if (rc) { |
4248 | dev_err(&ctrl_info->pci_dev->dev, | |
4249 | "error creating queue group number %u/%u\n", | |
4250 | i, ctrl_info->num_queue_groups); | |
4251 | return rc; | |
4252 | } | |
4253 | } | |
4254 | ||
4255 | return 0; | |
4256 | } | |
4257 | ||
4258 | #define PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH \ | |
4259 | (offsetof(struct pqi_event_config, descriptors) + \ | |
4260 | (PQI_MAX_EVENT_DESCRIPTORS * sizeof(struct pqi_event_descriptor))) | |
4261 | ||
6a50d6ad KB |
4262 | static int pqi_configure_events(struct pqi_ctrl_info *ctrl_info, |
4263 | bool enable_events) | |
6c223761 KB |
4264 | { |
4265 | int rc; | |
4266 | unsigned int i; | |
4267 | struct pqi_event_config *event_config; | |
6a50d6ad | 4268 | struct pqi_event_descriptor *event_descriptor; |
6c223761 KB |
4269 | struct pqi_general_management_request request; |
4270 | ||
4271 | event_config = kmalloc(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, | |
4272 | GFP_KERNEL); | |
4273 | if (!event_config) | |
4274 | return -ENOMEM; | |
4275 | ||
4276 | memset(&request, 0, sizeof(request)); | |
4277 | ||
4278 | request.header.iu_type = PQI_REQUEST_IU_REPORT_VENDOR_EVENT_CONFIG; | |
4279 | put_unaligned_le16(offsetof(struct pqi_general_management_request, | |
4280 | data.report_event_configuration.sg_descriptors[1]) - | |
4281 | PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length); | |
4282 | put_unaligned_le32(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, | |
4283 | &request.data.report_event_configuration.buffer_length); | |
4284 | ||
4285 | rc = pqi_map_single(ctrl_info->pci_dev, | |
4286 | request.data.report_event_configuration.sg_descriptors, | |
4287 | event_config, PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, | |
6917a9cc | 4288 | DMA_FROM_DEVICE); |
6c223761 KB |
4289 | if (rc) |
4290 | goto out; | |
4291 | ||
4292 | rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, | |
4293 | 0, NULL, NO_TIMEOUT); | |
4294 | ||
4295 | pqi_pci_unmap(ctrl_info->pci_dev, | |
4296 | request.data.report_event_configuration.sg_descriptors, 1, | |
6917a9cc | 4297 | DMA_FROM_DEVICE); |
6c223761 KB |
4298 | |
4299 | if (rc) | |
4300 | goto out; | |
4301 | ||
6a50d6ad KB |
4302 | for (i = 0; i < event_config->num_event_descriptors; i++) { |
4303 | event_descriptor = &event_config->descriptors[i]; | |
4304 | if (enable_events && | |
4305 | pqi_is_supported_event(event_descriptor->event_type)) | |
4306 | put_unaligned_le16(ctrl_info->event_queue.oq_id, | |
4307 | &event_descriptor->oq_id); | |
4308 | else | |
4309 | put_unaligned_le16(0, &event_descriptor->oq_id); | |
4310 | } | |
6c223761 KB |
4311 | |
4312 | memset(&request, 0, sizeof(request)); | |
4313 | ||
4314 | request.header.iu_type = PQI_REQUEST_IU_SET_VENDOR_EVENT_CONFIG; | |
4315 | put_unaligned_le16(offsetof(struct pqi_general_management_request, | |
4316 | data.report_event_configuration.sg_descriptors[1]) - | |
4317 | PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length); | |
4318 | put_unaligned_le32(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, | |
4319 | &request.data.report_event_configuration.buffer_length); | |
4320 | ||
4321 | rc = pqi_map_single(ctrl_info->pci_dev, | |
4322 | request.data.report_event_configuration.sg_descriptors, | |
4323 | event_config, PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH, | |
6917a9cc | 4324 | DMA_TO_DEVICE); |
6c223761 KB |
4325 | if (rc) |
4326 | goto out; | |
4327 | ||
4328 | rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, | |
4329 | NULL, NO_TIMEOUT); | |
4330 | ||
4331 | pqi_pci_unmap(ctrl_info->pci_dev, | |
4332 | request.data.report_event_configuration.sg_descriptors, 1, | |
6917a9cc | 4333 | DMA_TO_DEVICE); |
6c223761 KB |
4334 | |
4335 | out: | |
4336 | kfree(event_config); | |
4337 | ||
4338 | return rc; | |
4339 | } | |
4340 | ||
6a50d6ad KB |
4341 | static inline int pqi_enable_events(struct pqi_ctrl_info *ctrl_info) |
4342 | { | |
4343 | return pqi_configure_events(ctrl_info, true); | |
4344 | } | |
4345 | ||
4346 | static inline int pqi_disable_events(struct pqi_ctrl_info *ctrl_info) | |
4347 | { | |
4348 | return pqi_configure_events(ctrl_info, false); | |
4349 | } | |
4350 | ||
6c223761 KB |
4351 | static void pqi_free_all_io_requests(struct pqi_ctrl_info *ctrl_info) |
4352 | { | |
4353 | unsigned int i; | |
4354 | struct device *dev; | |
4355 | size_t sg_chain_buffer_length; | |
4356 | struct pqi_io_request *io_request; | |
4357 | ||
4358 | if (!ctrl_info->io_request_pool) | |
4359 | return; | |
4360 | ||
4361 | dev = &ctrl_info->pci_dev->dev; | |
4362 | sg_chain_buffer_length = ctrl_info->sg_chain_buffer_length; | |
4363 | io_request = ctrl_info->io_request_pool; | |
4364 | ||
4365 | for (i = 0; i < ctrl_info->max_io_slots; i++) { | |
4366 | kfree(io_request->iu); | |
4367 | if (!io_request->sg_chain_buffer) | |
4368 | break; | |
4369 | dma_free_coherent(dev, sg_chain_buffer_length, | |
4370 | io_request->sg_chain_buffer, | |
4371 | io_request->sg_chain_buffer_dma_handle); | |
4372 | io_request++; | |
4373 | } | |
4374 | ||
4375 | kfree(ctrl_info->io_request_pool); | |
4376 | ctrl_info->io_request_pool = NULL; | |
4377 | } | |
4378 | ||
4379 | static inline int pqi_alloc_error_buffer(struct pqi_ctrl_info *ctrl_info) | |
4380 | { | |
4381 | ctrl_info->error_buffer = dma_zalloc_coherent(&ctrl_info->pci_dev->dev, | |
4382 | ctrl_info->error_buffer_length, | |
4383 | &ctrl_info->error_buffer_dma_handle, GFP_KERNEL); | |
4384 | ||
4385 | if (!ctrl_info->error_buffer) | |
4386 | return -ENOMEM; | |
4387 | ||
4388 | return 0; | |
4389 | } | |
4390 | ||
4391 | static int pqi_alloc_io_resources(struct pqi_ctrl_info *ctrl_info) | |
4392 | { | |
4393 | unsigned int i; | |
4394 | void *sg_chain_buffer; | |
4395 | size_t sg_chain_buffer_length; | |
4396 | dma_addr_t sg_chain_buffer_dma_handle; | |
4397 | struct device *dev; | |
4398 | struct pqi_io_request *io_request; | |
4399 | ||
6396bb22 KC |
4400 | ctrl_info->io_request_pool = |
4401 | kcalloc(ctrl_info->max_io_slots, | |
4402 | sizeof(ctrl_info->io_request_pool[0]), GFP_KERNEL); | |
6c223761 KB |
4403 | |
4404 | if (!ctrl_info->io_request_pool) { | |
4405 | dev_err(&ctrl_info->pci_dev->dev, | |
4406 | "failed to allocate I/O request pool\n"); | |
4407 | goto error; | |
4408 | } | |
4409 | ||
4410 | dev = &ctrl_info->pci_dev->dev; | |
4411 | sg_chain_buffer_length = ctrl_info->sg_chain_buffer_length; | |
4412 | io_request = ctrl_info->io_request_pool; | |
4413 | ||
4414 | for (i = 0; i < ctrl_info->max_io_slots; i++) { | |
4415 | io_request->iu = | |
4416 | kmalloc(ctrl_info->max_inbound_iu_length, GFP_KERNEL); | |
4417 | ||
4418 | if (!io_request->iu) { | |
4419 | dev_err(&ctrl_info->pci_dev->dev, | |
4420 | "failed to allocate IU buffers\n"); | |
4421 | goto error; | |
4422 | } | |
4423 | ||
4424 | sg_chain_buffer = dma_alloc_coherent(dev, | |
4425 | sg_chain_buffer_length, &sg_chain_buffer_dma_handle, | |
4426 | GFP_KERNEL); | |
4427 | ||
4428 | if (!sg_chain_buffer) { | |
4429 | dev_err(&ctrl_info->pci_dev->dev, | |
4430 | "failed to allocate PQI scatter-gather chain buffers\n"); | |
4431 | goto error; | |
4432 | } | |
4433 | ||
4434 | io_request->index = i; | |
4435 | io_request->sg_chain_buffer = sg_chain_buffer; | |
4436 | io_request->sg_chain_buffer_dma_handle = | |
4437 | sg_chain_buffer_dma_handle; | |
4438 | io_request++; | |
4439 | } | |
4440 | ||
4441 | return 0; | |
4442 | ||
4443 | error: | |
4444 | pqi_free_all_io_requests(ctrl_info); | |
4445 | ||
4446 | return -ENOMEM; | |
4447 | } | |
4448 | ||
4449 | /* | |
4450 | * Calculate required resources that are sized based on max. outstanding | |
4451 | * requests and max. transfer size. | |
4452 | */ | |
4453 | ||
4454 | static void pqi_calculate_io_resources(struct pqi_ctrl_info *ctrl_info) | |
4455 | { | |
4456 | u32 max_transfer_size; | |
4457 | u32 max_sg_entries; | |
4458 | ||
4459 | ctrl_info->scsi_ml_can_queue = | |
4460 | ctrl_info->max_outstanding_requests - PQI_RESERVED_IO_SLOTS; | |
4461 | ctrl_info->max_io_slots = ctrl_info->max_outstanding_requests; | |
4462 | ||
4463 | ctrl_info->error_buffer_length = | |
4464 | ctrl_info->max_io_slots * PQI_ERROR_BUFFER_ELEMENT_LENGTH; | |
4465 | ||
d727a776 KB |
4466 | if (reset_devices) |
4467 | max_transfer_size = min(ctrl_info->max_transfer_size, | |
4468 | PQI_MAX_TRANSFER_SIZE_KDUMP); | |
4469 | else | |
4470 | max_transfer_size = min(ctrl_info->max_transfer_size, | |
4471 | PQI_MAX_TRANSFER_SIZE); | |
6c223761 KB |
4472 | |
4473 | max_sg_entries = max_transfer_size / PAGE_SIZE; | |
4474 | ||
4475 | /* +1 to cover when the buffer is not page-aligned. */ | |
4476 | max_sg_entries++; | |
4477 | ||
4478 | max_sg_entries = min(ctrl_info->max_sg_entries, max_sg_entries); | |
4479 | ||
4480 | max_transfer_size = (max_sg_entries - 1) * PAGE_SIZE; | |
4481 | ||
4482 | ctrl_info->sg_chain_buffer_length = | |
e1d213bd KB |
4483 | (max_sg_entries * sizeof(struct pqi_sg_descriptor)) + |
4484 | PQI_EXTRA_SGL_MEMORY; | |
6c223761 KB |
4485 | ctrl_info->sg_tablesize = max_sg_entries; |
4486 | ctrl_info->max_sectors = max_transfer_size / 512; | |
4487 | } | |
4488 | ||
4489 | static void pqi_calculate_queue_resources(struct pqi_ctrl_info *ctrl_info) | |
4490 | { | |
6c223761 KB |
4491 | int num_queue_groups; |
4492 | u16 num_elements_per_iq; | |
4493 | u16 num_elements_per_oq; | |
4494 | ||
d727a776 KB |
4495 | if (reset_devices) { |
4496 | num_queue_groups = 1; | |
4497 | } else { | |
4498 | int num_cpus; | |
4499 | int max_queue_groups; | |
4500 | ||
4501 | max_queue_groups = min(ctrl_info->max_inbound_queues / 2, | |
4502 | ctrl_info->max_outbound_queues - 1); | |
4503 | max_queue_groups = min(max_queue_groups, PQI_MAX_QUEUE_GROUPS); | |
6c223761 | 4504 | |
d727a776 KB |
4505 | num_cpus = num_online_cpus(); |
4506 | num_queue_groups = min(num_cpus, ctrl_info->max_msix_vectors); | |
4507 | num_queue_groups = min(num_queue_groups, max_queue_groups); | |
4508 | } | |
6c223761 KB |
4509 | |
4510 | ctrl_info->num_queue_groups = num_queue_groups; | |
061ef06a | 4511 | ctrl_info->max_hw_queue_index = num_queue_groups - 1; |
6c223761 | 4512 | |
77668f41 KB |
4513 | /* |
4514 | * Make sure that the max. inbound IU length is an even multiple | |
4515 | * of our inbound element length. | |
4516 | */ | |
4517 | ctrl_info->max_inbound_iu_length = | |
4518 | (ctrl_info->max_inbound_iu_length_per_firmware / | |
4519 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) * | |
4520 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH; | |
6c223761 KB |
4521 | |
4522 | num_elements_per_iq = | |
4523 | (ctrl_info->max_inbound_iu_length / | |
4524 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); | |
4525 | ||
4526 | /* Add one because one element in each queue is unusable. */ | |
4527 | num_elements_per_iq++; | |
4528 | ||
4529 | num_elements_per_iq = min(num_elements_per_iq, | |
4530 | ctrl_info->max_elements_per_iq); | |
4531 | ||
4532 | num_elements_per_oq = ((num_elements_per_iq - 1) * 2) + 1; | |
4533 | num_elements_per_oq = min(num_elements_per_oq, | |
4534 | ctrl_info->max_elements_per_oq); | |
4535 | ||
4536 | ctrl_info->num_elements_per_iq = num_elements_per_iq; | |
4537 | ctrl_info->num_elements_per_oq = num_elements_per_oq; | |
4538 | ||
4539 | ctrl_info->max_sg_per_iu = | |
4540 | ((ctrl_info->max_inbound_iu_length - | |
4541 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) / | |
4542 | sizeof(struct pqi_sg_descriptor)) + | |
4543 | PQI_MAX_EMBEDDED_SG_DESCRIPTORS; | |
4544 | } | |
4545 | ||
4546 | static inline void pqi_set_sg_descriptor( | |
4547 | struct pqi_sg_descriptor *sg_descriptor, struct scatterlist *sg) | |
4548 | { | |
4549 | u64 address = (u64)sg_dma_address(sg); | |
4550 | unsigned int length = sg_dma_len(sg); | |
4551 | ||
4552 | put_unaligned_le64(address, &sg_descriptor->address); | |
4553 | put_unaligned_le32(length, &sg_descriptor->length); | |
4554 | put_unaligned_le32(0, &sg_descriptor->flags); | |
4555 | } | |
4556 | ||
4557 | static int pqi_build_raid_sg_list(struct pqi_ctrl_info *ctrl_info, | |
4558 | struct pqi_raid_path_request *request, struct scsi_cmnd *scmd, | |
4559 | struct pqi_io_request *io_request) | |
4560 | { | |
4561 | int i; | |
4562 | u16 iu_length; | |
4563 | int sg_count; | |
4564 | bool chained; | |
4565 | unsigned int num_sg_in_iu; | |
4566 | unsigned int max_sg_per_iu; | |
4567 | struct scatterlist *sg; | |
4568 | struct pqi_sg_descriptor *sg_descriptor; | |
4569 | ||
4570 | sg_count = scsi_dma_map(scmd); | |
4571 | if (sg_count < 0) | |
4572 | return sg_count; | |
4573 | ||
4574 | iu_length = offsetof(struct pqi_raid_path_request, sg_descriptors) - | |
4575 | PQI_REQUEST_HEADER_LENGTH; | |
4576 | ||
4577 | if (sg_count == 0) | |
4578 | goto out; | |
4579 | ||
4580 | sg = scsi_sglist(scmd); | |
4581 | sg_descriptor = request->sg_descriptors; | |
4582 | max_sg_per_iu = ctrl_info->max_sg_per_iu - 1; | |
4583 | chained = false; | |
4584 | num_sg_in_iu = 0; | |
4585 | i = 0; | |
4586 | ||
4587 | while (1) { | |
4588 | pqi_set_sg_descriptor(sg_descriptor, sg); | |
4589 | if (!chained) | |
4590 | num_sg_in_iu++; | |
4591 | i++; | |
4592 | if (i == sg_count) | |
4593 | break; | |
4594 | sg_descriptor++; | |
4595 | if (i == max_sg_per_iu) { | |
4596 | put_unaligned_le64( | |
4597 | (u64)io_request->sg_chain_buffer_dma_handle, | |
4598 | &sg_descriptor->address); | |
4599 | put_unaligned_le32((sg_count - num_sg_in_iu) | |
4600 | * sizeof(*sg_descriptor), | |
4601 | &sg_descriptor->length); | |
4602 | put_unaligned_le32(CISS_SG_CHAIN, | |
4603 | &sg_descriptor->flags); | |
4604 | chained = true; | |
4605 | num_sg_in_iu++; | |
4606 | sg_descriptor = io_request->sg_chain_buffer; | |
4607 | } | |
4608 | sg = sg_next(sg); | |
4609 | } | |
4610 | ||
4611 | put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags); | |
4612 | request->partial = chained; | |
4613 | iu_length += num_sg_in_iu * sizeof(*sg_descriptor); | |
4614 | ||
4615 | out: | |
4616 | put_unaligned_le16(iu_length, &request->header.iu_length); | |
4617 | ||
4618 | return 0; | |
4619 | } | |
4620 | ||
4621 | static int pqi_build_aio_sg_list(struct pqi_ctrl_info *ctrl_info, | |
4622 | struct pqi_aio_path_request *request, struct scsi_cmnd *scmd, | |
4623 | struct pqi_io_request *io_request) | |
4624 | { | |
4625 | int i; | |
4626 | u16 iu_length; | |
4627 | int sg_count; | |
a60eec02 KB |
4628 | bool chained; |
4629 | unsigned int num_sg_in_iu; | |
4630 | unsigned int max_sg_per_iu; | |
6c223761 KB |
4631 | struct scatterlist *sg; |
4632 | struct pqi_sg_descriptor *sg_descriptor; | |
4633 | ||
4634 | sg_count = scsi_dma_map(scmd); | |
4635 | if (sg_count < 0) | |
4636 | return sg_count; | |
a60eec02 KB |
4637 | |
4638 | iu_length = offsetof(struct pqi_aio_path_request, sg_descriptors) - | |
4639 | PQI_REQUEST_HEADER_LENGTH; | |
4640 | num_sg_in_iu = 0; | |
4641 | ||
6c223761 KB |
4642 | if (sg_count == 0) |
4643 | goto out; | |
4644 | ||
a60eec02 KB |
4645 | sg = scsi_sglist(scmd); |
4646 | sg_descriptor = request->sg_descriptors; | |
4647 | max_sg_per_iu = ctrl_info->max_sg_per_iu - 1; | |
4648 | chained = false; | |
4649 | i = 0; | |
4650 | ||
4651 | while (1) { | |
4652 | pqi_set_sg_descriptor(sg_descriptor, sg); | |
4653 | if (!chained) | |
4654 | num_sg_in_iu++; | |
4655 | i++; | |
4656 | if (i == sg_count) | |
4657 | break; | |
4658 | sg_descriptor++; | |
4659 | if (i == max_sg_per_iu) { | |
4660 | put_unaligned_le64( | |
4661 | (u64)io_request->sg_chain_buffer_dma_handle, | |
4662 | &sg_descriptor->address); | |
4663 | put_unaligned_le32((sg_count - num_sg_in_iu) | |
4664 | * sizeof(*sg_descriptor), | |
4665 | &sg_descriptor->length); | |
4666 | put_unaligned_le32(CISS_SG_CHAIN, | |
4667 | &sg_descriptor->flags); | |
4668 | chained = true; | |
4669 | num_sg_in_iu++; | |
4670 | sg_descriptor = io_request->sg_chain_buffer; | |
6c223761 | 4671 | } |
a60eec02 | 4672 | sg = sg_next(sg); |
6c223761 KB |
4673 | } |
4674 | ||
a60eec02 KB |
4675 | put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags); |
4676 | request->partial = chained; | |
6c223761 | 4677 | iu_length += num_sg_in_iu * sizeof(*sg_descriptor); |
a60eec02 KB |
4678 | |
4679 | out: | |
6c223761 KB |
4680 | put_unaligned_le16(iu_length, &request->header.iu_length); |
4681 | request->num_sg_descriptors = num_sg_in_iu; | |
4682 | ||
4683 | return 0; | |
4684 | } | |
4685 | ||
4686 | static void pqi_raid_io_complete(struct pqi_io_request *io_request, | |
4687 | void *context) | |
4688 | { | |
4689 | struct scsi_cmnd *scmd; | |
4690 | ||
4691 | scmd = io_request->scmd; | |
4692 | pqi_free_io_request(io_request); | |
4693 | scsi_dma_unmap(scmd); | |
4694 | pqi_scsi_done(scmd); | |
4695 | } | |
4696 | ||
376fb880 KB |
4697 | static int pqi_raid_submit_scsi_cmd_with_io_request( |
4698 | struct pqi_ctrl_info *ctrl_info, struct pqi_io_request *io_request, | |
6c223761 KB |
4699 | struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, |
4700 | struct pqi_queue_group *queue_group) | |
4701 | { | |
4702 | int rc; | |
4703 | size_t cdb_length; | |
6c223761 KB |
4704 | struct pqi_raid_path_request *request; |
4705 | ||
6c223761 KB |
4706 | io_request->io_complete_callback = pqi_raid_io_complete; |
4707 | io_request->scmd = scmd; | |
4708 | ||
6c223761 KB |
4709 | request = io_request->iu; |
4710 | memset(request, 0, | |
4711 | offsetof(struct pqi_raid_path_request, sg_descriptors)); | |
4712 | ||
4713 | request->header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO; | |
4714 | put_unaligned_le32(scsi_bufflen(scmd), &request->buffer_length); | |
4715 | request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; | |
4716 | put_unaligned_le16(io_request->index, &request->request_id); | |
4717 | request->error_index = request->request_id; | |
4718 | memcpy(request->lun_number, device->scsi3addr, | |
4719 | sizeof(request->lun_number)); | |
4720 | ||
4721 | cdb_length = min_t(size_t, scmd->cmd_len, sizeof(request->cdb)); | |
4722 | memcpy(request->cdb, scmd->cmnd, cdb_length); | |
4723 | ||
4724 | switch (cdb_length) { | |
4725 | case 6: | |
4726 | case 10: | |
4727 | case 12: | |
4728 | case 16: | |
4729 | /* No bytes in the Additional CDB bytes field */ | |
4730 | request->additional_cdb_bytes_usage = | |
4731 | SOP_ADDITIONAL_CDB_BYTES_0; | |
4732 | break; | |
4733 | case 20: | |
4734 | /* 4 bytes in the Additional cdb field */ | |
4735 | request->additional_cdb_bytes_usage = | |
4736 | SOP_ADDITIONAL_CDB_BYTES_4; | |
4737 | break; | |
4738 | case 24: | |
4739 | /* 8 bytes in the Additional cdb field */ | |
4740 | request->additional_cdb_bytes_usage = | |
4741 | SOP_ADDITIONAL_CDB_BYTES_8; | |
4742 | break; | |
4743 | case 28: | |
4744 | /* 12 bytes in the Additional cdb field */ | |
4745 | request->additional_cdb_bytes_usage = | |
4746 | SOP_ADDITIONAL_CDB_BYTES_12; | |
4747 | break; | |
4748 | case 32: | |
4749 | default: | |
4750 | /* 16 bytes in the Additional cdb field */ | |
4751 | request->additional_cdb_bytes_usage = | |
4752 | SOP_ADDITIONAL_CDB_BYTES_16; | |
4753 | break; | |
4754 | } | |
4755 | ||
4756 | switch (scmd->sc_data_direction) { | |
4757 | case DMA_TO_DEVICE: | |
4758 | request->data_direction = SOP_READ_FLAG; | |
4759 | break; | |
4760 | case DMA_FROM_DEVICE: | |
4761 | request->data_direction = SOP_WRITE_FLAG; | |
4762 | break; | |
4763 | case DMA_NONE: | |
4764 | request->data_direction = SOP_NO_DIRECTION_FLAG; | |
4765 | break; | |
4766 | case DMA_BIDIRECTIONAL: | |
4767 | request->data_direction = SOP_BIDIRECTIONAL; | |
4768 | break; | |
4769 | default: | |
4770 | dev_err(&ctrl_info->pci_dev->dev, | |
4771 | "unknown data direction: %d\n", | |
4772 | scmd->sc_data_direction); | |
6c223761 KB |
4773 | break; |
4774 | } | |
4775 | ||
4776 | rc = pqi_build_raid_sg_list(ctrl_info, request, scmd, io_request); | |
4777 | if (rc) { | |
4778 | pqi_free_io_request(io_request); | |
4779 | return SCSI_MLQUEUE_HOST_BUSY; | |
4780 | } | |
4781 | ||
4782 | pqi_start_io(ctrl_info, queue_group, RAID_PATH, io_request); | |
4783 | ||
4784 | return 0; | |
4785 | } | |
4786 | ||
376fb880 KB |
4787 | static inline int pqi_raid_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info, |
4788 | struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, | |
4789 | struct pqi_queue_group *queue_group) | |
4790 | { | |
4791 | struct pqi_io_request *io_request; | |
4792 | ||
4793 | io_request = pqi_alloc_io_request(ctrl_info); | |
4794 | ||
4795 | return pqi_raid_submit_scsi_cmd_with_io_request(ctrl_info, io_request, | |
4796 | device, scmd, queue_group); | |
4797 | } | |
4798 | ||
4799 | static inline void pqi_schedule_bypass_retry(struct pqi_ctrl_info *ctrl_info) | |
4800 | { | |
4801 | if (!pqi_ctrl_blocked(ctrl_info)) | |
4802 | schedule_work(&ctrl_info->raid_bypass_retry_work); | |
4803 | } | |
4804 | ||
4805 | static bool pqi_raid_bypass_retry_needed(struct pqi_io_request *io_request) | |
4806 | { | |
4807 | struct scsi_cmnd *scmd; | |
03b288cf | 4808 | struct pqi_scsi_dev *device; |
376fb880 KB |
4809 | struct pqi_ctrl_info *ctrl_info; |
4810 | ||
4811 | if (!io_request->raid_bypass) | |
4812 | return false; | |
4813 | ||
4814 | scmd = io_request->scmd; | |
4815 | if ((scmd->result & 0xff) == SAM_STAT_GOOD) | |
4816 | return false; | |
4817 | if (host_byte(scmd->result) == DID_NO_CONNECT) | |
4818 | return false; | |
4819 | ||
03b288cf KB |
4820 | device = scmd->device->hostdata; |
4821 | if (pqi_device_offline(device)) | |
4822 | return false; | |
4823 | ||
376fb880 KB |
4824 | ctrl_info = shost_to_hba(scmd->device->host); |
4825 | if (pqi_ctrl_offline(ctrl_info)) | |
4826 | return false; | |
4827 | ||
4828 | return true; | |
4829 | } | |
4830 | ||
4831 | static inline void pqi_add_to_raid_bypass_retry_list( | |
4832 | struct pqi_ctrl_info *ctrl_info, | |
4833 | struct pqi_io_request *io_request, bool at_head) | |
4834 | { | |
4835 | unsigned long flags; | |
4836 | ||
4837 | spin_lock_irqsave(&ctrl_info->raid_bypass_retry_list_lock, flags); | |
4838 | if (at_head) | |
4839 | list_add(&io_request->request_list_entry, | |
4840 | &ctrl_info->raid_bypass_retry_list); | |
4841 | else | |
4842 | list_add_tail(&io_request->request_list_entry, | |
4843 | &ctrl_info->raid_bypass_retry_list); | |
4844 | spin_unlock_irqrestore(&ctrl_info->raid_bypass_retry_list_lock, flags); | |
4845 | } | |
4846 | ||
4847 | static void pqi_queued_raid_bypass_complete(struct pqi_io_request *io_request, | |
4848 | void *context) | |
4849 | { | |
4850 | struct scsi_cmnd *scmd; | |
4851 | ||
4852 | scmd = io_request->scmd; | |
4853 | pqi_free_io_request(io_request); | |
4854 | pqi_scsi_done(scmd); | |
4855 | } | |
4856 | ||
4857 | static void pqi_queue_raid_bypass_retry(struct pqi_io_request *io_request) | |
4858 | { | |
4859 | struct scsi_cmnd *scmd; | |
4860 | struct pqi_ctrl_info *ctrl_info; | |
4861 | ||
4862 | io_request->io_complete_callback = pqi_queued_raid_bypass_complete; | |
4863 | scmd = io_request->scmd; | |
4864 | scmd->result = 0; | |
4865 | ctrl_info = shost_to_hba(scmd->device->host); | |
4866 | ||
4867 | pqi_add_to_raid_bypass_retry_list(ctrl_info, io_request, false); | |
4868 | pqi_schedule_bypass_retry(ctrl_info); | |
4869 | } | |
4870 | ||
4871 | static int pqi_retry_raid_bypass(struct pqi_io_request *io_request) | |
4872 | { | |
4873 | struct scsi_cmnd *scmd; | |
4874 | struct pqi_scsi_dev *device; | |
4875 | struct pqi_ctrl_info *ctrl_info; | |
4876 | struct pqi_queue_group *queue_group; | |
4877 | ||
4878 | scmd = io_request->scmd; | |
4879 | device = scmd->device->hostdata; | |
4880 | if (pqi_device_in_reset(device)) { | |
4881 | pqi_free_io_request(io_request); | |
4882 | set_host_byte(scmd, DID_RESET); | |
4883 | pqi_scsi_done(scmd); | |
4884 | return 0; | |
4885 | } | |
4886 | ||
4887 | ctrl_info = shost_to_hba(scmd->device->host); | |
4888 | queue_group = io_request->queue_group; | |
4889 | ||
4890 | pqi_reinit_io_request(io_request); | |
4891 | ||
4892 | return pqi_raid_submit_scsi_cmd_with_io_request(ctrl_info, io_request, | |
4893 | device, scmd, queue_group); | |
4894 | } | |
4895 | ||
4896 | static inline struct pqi_io_request *pqi_next_queued_raid_bypass_request( | |
4897 | struct pqi_ctrl_info *ctrl_info) | |
4898 | { | |
4899 | unsigned long flags; | |
4900 | struct pqi_io_request *io_request; | |
4901 | ||
4902 | spin_lock_irqsave(&ctrl_info->raid_bypass_retry_list_lock, flags); | |
4903 | io_request = list_first_entry_or_null( | |
4904 | &ctrl_info->raid_bypass_retry_list, | |
4905 | struct pqi_io_request, request_list_entry); | |
4906 | if (io_request) | |
4907 | list_del(&io_request->request_list_entry); | |
4908 | spin_unlock_irqrestore(&ctrl_info->raid_bypass_retry_list_lock, flags); | |
4909 | ||
4910 | return io_request; | |
4911 | } | |
4912 | ||
4913 | static void pqi_retry_raid_bypass_requests(struct pqi_ctrl_info *ctrl_info) | |
4914 | { | |
4915 | int rc; | |
4916 | struct pqi_io_request *io_request; | |
4917 | ||
4918 | pqi_ctrl_busy(ctrl_info); | |
4919 | ||
4920 | while (1) { | |
4921 | if (pqi_ctrl_blocked(ctrl_info)) | |
4922 | break; | |
4923 | io_request = pqi_next_queued_raid_bypass_request(ctrl_info); | |
4924 | if (!io_request) | |
4925 | break; | |
4926 | rc = pqi_retry_raid_bypass(io_request); | |
4927 | if (rc) { | |
4928 | pqi_add_to_raid_bypass_retry_list(ctrl_info, io_request, | |
4929 | true); | |
4930 | pqi_schedule_bypass_retry(ctrl_info); | |
4931 | break; | |
4932 | } | |
4933 | } | |
4934 | ||
4935 | pqi_ctrl_unbusy(ctrl_info); | |
4936 | } | |
4937 | ||
4938 | static void pqi_raid_bypass_retry_worker(struct work_struct *work) | |
4939 | { | |
4940 | struct pqi_ctrl_info *ctrl_info; | |
4941 | ||
4942 | ctrl_info = container_of(work, struct pqi_ctrl_info, | |
4943 | raid_bypass_retry_work); | |
4944 | pqi_retry_raid_bypass_requests(ctrl_info); | |
4945 | } | |
4946 | ||
5f310425 KB |
4947 | static void pqi_clear_all_queued_raid_bypass_retries( |
4948 | struct pqi_ctrl_info *ctrl_info) | |
376fb880 KB |
4949 | { |
4950 | unsigned long flags; | |
376fb880 KB |
4951 | |
4952 | spin_lock_irqsave(&ctrl_info->raid_bypass_retry_list_lock, flags); | |
5f310425 | 4953 | INIT_LIST_HEAD(&ctrl_info->raid_bypass_retry_list); |
376fb880 KB |
4954 | spin_unlock_irqrestore(&ctrl_info->raid_bypass_retry_list_lock, flags); |
4955 | } | |
4956 | ||
6c223761 KB |
4957 | static void pqi_aio_io_complete(struct pqi_io_request *io_request, |
4958 | void *context) | |
4959 | { | |
4960 | struct scsi_cmnd *scmd; | |
4961 | ||
4962 | scmd = io_request->scmd; | |
4963 | scsi_dma_unmap(scmd); | |
4964 | if (io_request->status == -EAGAIN) | |
4965 | set_host_byte(scmd, DID_IMM_RETRY); | |
376fb880 KB |
4966 | else if (pqi_raid_bypass_retry_needed(io_request)) { |
4967 | pqi_queue_raid_bypass_retry(io_request); | |
4968 | return; | |
4969 | } | |
6c223761 KB |
4970 | pqi_free_io_request(io_request); |
4971 | pqi_scsi_done(scmd); | |
4972 | } | |
4973 | ||
4974 | static inline int pqi_aio_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info, | |
4975 | struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, | |
4976 | struct pqi_queue_group *queue_group) | |
4977 | { | |
4978 | return pqi_aio_submit_io(ctrl_info, scmd, device->aio_handle, | |
376fb880 | 4979 | scmd->cmnd, scmd->cmd_len, queue_group, NULL, false); |
6c223761 KB |
4980 | } |
4981 | ||
4982 | static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info, | |
4983 | struct scsi_cmnd *scmd, u32 aio_handle, u8 *cdb, | |
4984 | unsigned int cdb_length, struct pqi_queue_group *queue_group, | |
376fb880 | 4985 | struct pqi_encryption_info *encryption_info, bool raid_bypass) |
6c223761 KB |
4986 | { |
4987 | int rc; | |
4988 | struct pqi_io_request *io_request; | |
4989 | struct pqi_aio_path_request *request; | |
4990 | ||
4991 | io_request = pqi_alloc_io_request(ctrl_info); | |
4992 | io_request->io_complete_callback = pqi_aio_io_complete; | |
4993 | io_request->scmd = scmd; | |
376fb880 | 4994 | io_request->raid_bypass = raid_bypass; |
6c223761 KB |
4995 | |
4996 | request = io_request->iu; | |
4997 | memset(request, 0, | |
4998 | offsetof(struct pqi_raid_path_request, sg_descriptors)); | |
4999 | ||
5000 | request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_IO; | |
5001 | put_unaligned_le32(aio_handle, &request->nexus_id); | |
5002 | put_unaligned_le32(scsi_bufflen(scmd), &request->buffer_length); | |
5003 | request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; | |
5004 | put_unaligned_le16(io_request->index, &request->request_id); | |
5005 | request->error_index = request->request_id; | |
5006 | if (cdb_length > sizeof(request->cdb)) | |
5007 | cdb_length = sizeof(request->cdb); | |
5008 | request->cdb_length = cdb_length; | |
5009 | memcpy(request->cdb, cdb, cdb_length); | |
5010 | ||
5011 | switch (scmd->sc_data_direction) { | |
5012 | case DMA_TO_DEVICE: | |
5013 | request->data_direction = SOP_READ_FLAG; | |
5014 | break; | |
5015 | case DMA_FROM_DEVICE: | |
5016 | request->data_direction = SOP_WRITE_FLAG; | |
5017 | break; | |
5018 | case DMA_NONE: | |
5019 | request->data_direction = SOP_NO_DIRECTION_FLAG; | |
5020 | break; | |
5021 | case DMA_BIDIRECTIONAL: | |
5022 | request->data_direction = SOP_BIDIRECTIONAL; | |
5023 | break; | |
5024 | default: | |
5025 | dev_err(&ctrl_info->pci_dev->dev, | |
5026 | "unknown data direction: %d\n", | |
5027 | scmd->sc_data_direction); | |
6c223761 KB |
5028 | break; |
5029 | } | |
5030 | ||
5031 | if (encryption_info) { | |
5032 | request->encryption_enable = true; | |
5033 | put_unaligned_le16(encryption_info->data_encryption_key_index, | |
5034 | &request->data_encryption_key_index); | |
5035 | put_unaligned_le32(encryption_info->encrypt_tweak_lower, | |
5036 | &request->encrypt_tweak_lower); | |
5037 | put_unaligned_le32(encryption_info->encrypt_tweak_upper, | |
5038 | &request->encrypt_tweak_upper); | |
5039 | } | |
5040 | ||
5041 | rc = pqi_build_aio_sg_list(ctrl_info, request, scmd, io_request); | |
5042 | if (rc) { | |
5043 | pqi_free_io_request(io_request); | |
5044 | return SCSI_MLQUEUE_HOST_BUSY; | |
5045 | } | |
5046 | ||
5047 | pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request); | |
5048 | ||
5049 | return 0; | |
5050 | } | |
5051 | ||
061ef06a KB |
5052 | static inline u16 pqi_get_hw_queue(struct pqi_ctrl_info *ctrl_info, |
5053 | struct scsi_cmnd *scmd) | |
5054 | { | |
5055 | u16 hw_queue; | |
5056 | ||
5057 | hw_queue = blk_mq_unique_tag_to_hwq(blk_mq_unique_tag(scmd->request)); | |
5058 | if (hw_queue > ctrl_info->max_hw_queue_index) | |
5059 | hw_queue = 0; | |
5060 | ||
5061 | return hw_queue; | |
5062 | } | |
5063 | ||
7561a7e4 KB |
5064 | /* |
5065 | * This function gets called just before we hand the completed SCSI request | |
5066 | * back to the SML. | |
5067 | */ | |
5068 | ||
5069 | void pqi_prep_for_scsi_done(struct scsi_cmnd *scmd) | |
5070 | { | |
5071 | struct pqi_scsi_dev *device; | |
5072 | ||
1e46731e MR |
5073 | if (!scmd->device) { |
5074 | set_host_byte(scmd, DID_NO_CONNECT); | |
5075 | return; | |
5076 | } | |
5077 | ||
7561a7e4 | 5078 | device = scmd->device->hostdata; |
1e46731e MR |
5079 | if (!device) { |
5080 | set_host_byte(scmd, DID_NO_CONNECT); | |
5081 | return; | |
5082 | } | |
5083 | ||
7561a7e4 KB |
5084 | atomic_dec(&device->scsi_cmds_outstanding); |
5085 | } | |
5086 | ||
6c223761 | 5087 | static int pqi_scsi_queue_command(struct Scsi_Host *shost, |
7d81d2b8 | 5088 | struct scsi_cmnd *scmd) |
6c223761 KB |
5089 | { |
5090 | int rc; | |
5091 | struct pqi_ctrl_info *ctrl_info; | |
5092 | struct pqi_scsi_dev *device; | |
061ef06a | 5093 | u16 hw_queue; |
6c223761 KB |
5094 | struct pqi_queue_group *queue_group; |
5095 | bool raid_bypassed; | |
5096 | ||
5097 | device = scmd->device->hostdata; | |
6c223761 KB |
5098 | ctrl_info = shost_to_hba(shost); |
5099 | ||
1e46731e MR |
5100 | if (!device) { |
5101 | set_host_byte(scmd, DID_NO_CONNECT); | |
5102 | pqi_scsi_done(scmd); | |
5103 | return 0; | |
5104 | } | |
5105 | ||
7561a7e4 KB |
5106 | atomic_inc(&device->scsi_cmds_outstanding); |
5107 | ||
1e46731e MR |
5108 | if (pqi_ctrl_offline(ctrl_info) || pqi_device_in_remove(ctrl_info, |
5109 | device)) { | |
6c223761 KB |
5110 | set_host_byte(scmd, DID_NO_CONNECT); |
5111 | pqi_scsi_done(scmd); | |
5112 | return 0; | |
5113 | } | |
5114 | ||
7561a7e4 KB |
5115 | pqi_ctrl_busy(ctrl_info); |
5116 | if (pqi_ctrl_blocked(ctrl_info) || pqi_device_in_reset(device)) { | |
5117 | rc = SCSI_MLQUEUE_HOST_BUSY; | |
5118 | goto out; | |
5119 | } | |
5120 | ||
7d81d2b8 KB |
5121 | /* |
5122 | * This is necessary because the SML doesn't zero out this field during | |
5123 | * error recovery. | |
5124 | */ | |
5125 | scmd->result = 0; | |
5126 | ||
061ef06a KB |
5127 | hw_queue = pqi_get_hw_queue(ctrl_info, scmd); |
5128 | queue_group = &ctrl_info->queue_groups[hw_queue]; | |
6c223761 KB |
5129 | |
5130 | if (pqi_is_logical_device(device)) { | |
5131 | raid_bypassed = false; | |
588a63fe | 5132 | if (device->raid_bypass_enabled && |
57292b58 | 5133 | !blk_rq_is_passthrough(scmd->request)) { |
6c223761 KB |
5134 | rc = pqi_raid_bypass_submit_scsi_cmd(ctrl_info, device, |
5135 | scmd, queue_group); | |
376fb880 KB |
5136 | if (rc == 0 || rc == SCSI_MLQUEUE_HOST_BUSY) |
5137 | raid_bypassed = true; | |
6c223761 KB |
5138 | } |
5139 | if (!raid_bypassed) | |
5140 | rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, | |
5141 | queue_group); | |
5142 | } else { | |
5143 | if (device->aio_enabled) | |
5144 | rc = pqi_aio_submit_scsi_cmd(ctrl_info, device, scmd, | |
5145 | queue_group); | |
5146 | else | |
5147 | rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, | |
5148 | queue_group); | |
5149 | } | |
5150 | ||
7561a7e4 KB |
5151 | out: |
5152 | pqi_ctrl_unbusy(ctrl_info); | |
5153 | if (rc) | |
5154 | atomic_dec(&device->scsi_cmds_outstanding); | |
5155 | ||
6c223761 KB |
5156 | return rc; |
5157 | } | |
5158 | ||
7561a7e4 KB |
5159 | static int pqi_wait_until_queued_io_drained(struct pqi_ctrl_info *ctrl_info, |
5160 | struct pqi_queue_group *queue_group) | |
5161 | { | |
5162 | unsigned int path; | |
5163 | unsigned long flags; | |
5164 | bool list_is_empty; | |
5165 | ||
5166 | for (path = 0; path < 2; path++) { | |
5167 | while (1) { | |
5168 | spin_lock_irqsave( | |
5169 | &queue_group->submit_lock[path], flags); | |
5170 | list_is_empty = | |
5171 | list_empty(&queue_group->request_list[path]); | |
5172 | spin_unlock_irqrestore( | |
5173 | &queue_group->submit_lock[path], flags); | |
5174 | if (list_is_empty) | |
5175 | break; | |
5176 | pqi_check_ctrl_health(ctrl_info); | |
5177 | if (pqi_ctrl_offline(ctrl_info)) | |
5178 | return -ENXIO; | |
5179 | usleep_range(1000, 2000); | |
5180 | } | |
5181 | } | |
5182 | ||
5183 | return 0; | |
5184 | } | |
5185 | ||
5186 | static int pqi_wait_until_inbound_queues_empty(struct pqi_ctrl_info *ctrl_info) | |
5187 | { | |
5188 | int rc; | |
5189 | unsigned int i; | |
5190 | unsigned int path; | |
5191 | struct pqi_queue_group *queue_group; | |
5192 | pqi_index_t iq_pi; | |
5193 | pqi_index_t iq_ci; | |
5194 | ||
5195 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
5196 | queue_group = &ctrl_info->queue_groups[i]; | |
5197 | ||
5198 | rc = pqi_wait_until_queued_io_drained(ctrl_info, queue_group); | |
5199 | if (rc) | |
5200 | return rc; | |
5201 | ||
5202 | for (path = 0; path < 2; path++) { | |
5203 | iq_pi = queue_group->iq_pi_copy[path]; | |
5204 | ||
5205 | while (1) { | |
dac12fbc | 5206 | iq_ci = readl(queue_group->iq_ci[path]); |
7561a7e4 KB |
5207 | if (iq_ci == iq_pi) |
5208 | break; | |
5209 | pqi_check_ctrl_health(ctrl_info); | |
5210 | if (pqi_ctrl_offline(ctrl_info)) | |
5211 | return -ENXIO; | |
5212 | usleep_range(1000, 2000); | |
5213 | } | |
5214 | } | |
5215 | } | |
5216 | ||
5217 | return 0; | |
5218 | } | |
5219 | ||
5220 | static void pqi_fail_io_queued_for_device(struct pqi_ctrl_info *ctrl_info, | |
5221 | struct pqi_scsi_dev *device) | |
5222 | { | |
5223 | unsigned int i; | |
5224 | unsigned int path; | |
5225 | struct pqi_queue_group *queue_group; | |
5226 | unsigned long flags; | |
5227 | struct pqi_io_request *io_request; | |
5228 | struct pqi_io_request *next; | |
5229 | struct scsi_cmnd *scmd; | |
5230 | struct pqi_scsi_dev *scsi_device; | |
5231 | ||
5232 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
5233 | queue_group = &ctrl_info->queue_groups[i]; | |
5234 | ||
5235 | for (path = 0; path < 2; path++) { | |
5236 | spin_lock_irqsave( | |
5237 | &queue_group->submit_lock[path], flags); | |
5238 | ||
5239 | list_for_each_entry_safe(io_request, next, | |
5240 | &queue_group->request_list[path], | |
5241 | request_list_entry) { | |
5242 | scmd = io_request->scmd; | |
5243 | if (!scmd) | |
5244 | continue; | |
5245 | ||
5246 | scsi_device = scmd->device->hostdata; | |
5247 | if (scsi_device != device) | |
5248 | continue; | |
5249 | ||
5250 | list_del(&io_request->request_list_entry); | |
5251 | set_host_byte(scmd, DID_RESET); | |
5252 | pqi_scsi_done(scmd); | |
5253 | } | |
5254 | ||
5255 | spin_unlock_irqrestore( | |
5256 | &queue_group->submit_lock[path], flags); | |
5257 | } | |
5258 | } | |
5259 | } | |
5260 | ||
061ef06a | 5261 | static int pqi_device_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info, |
1e46731e | 5262 | struct pqi_scsi_dev *device, unsigned long timeout_secs) |
061ef06a | 5263 | { |
1e46731e MR |
5264 | unsigned long timeout; |
5265 | ||
5266 | timeout = (timeout_secs * HZ) + jiffies; | |
5267 | ||
061ef06a KB |
5268 | while (atomic_read(&device->scsi_cmds_outstanding)) { |
5269 | pqi_check_ctrl_health(ctrl_info); | |
5270 | if (pqi_ctrl_offline(ctrl_info)) | |
5271 | return -ENXIO; | |
1e46731e MR |
5272 | if (timeout_secs != NO_TIMEOUT) { |
5273 | if (time_after(jiffies, timeout)) { | |
5274 | dev_err(&ctrl_info->pci_dev->dev, | |
5275 | "timed out waiting for pending IO\n"); | |
5276 | return -ETIMEDOUT; | |
5277 | } | |
5278 | } | |
061ef06a KB |
5279 | usleep_range(1000, 2000); |
5280 | } | |
5281 | ||
5282 | return 0; | |
5283 | } | |
5284 | ||
5285 | static int pqi_ctrl_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info) | |
5286 | { | |
5287 | bool io_pending; | |
5288 | unsigned long flags; | |
5289 | struct pqi_scsi_dev *device; | |
5290 | ||
5291 | while (1) { | |
5292 | io_pending = false; | |
5293 | ||
5294 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
5295 | list_for_each_entry(device, &ctrl_info->scsi_device_list, | |
5296 | scsi_device_list_entry) { | |
5297 | if (atomic_read(&device->scsi_cmds_outstanding)) { | |
5298 | io_pending = true; | |
5299 | break; | |
5300 | } | |
5301 | } | |
5302 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, | |
5303 | flags); | |
5304 | ||
5305 | if (!io_pending) | |
5306 | break; | |
5307 | ||
5308 | pqi_check_ctrl_health(ctrl_info); | |
5309 | if (pqi_ctrl_offline(ctrl_info)) | |
5310 | return -ENXIO; | |
5311 | ||
5312 | usleep_range(1000, 2000); | |
5313 | } | |
5314 | ||
5315 | return 0; | |
5316 | } | |
5317 | ||
14bb215d KB |
5318 | static void pqi_lun_reset_complete(struct pqi_io_request *io_request, |
5319 | void *context) | |
6c223761 | 5320 | { |
14bb215d | 5321 | struct completion *waiting = context; |
6c223761 | 5322 | |
14bb215d KB |
5323 | complete(waiting); |
5324 | } | |
6c223761 | 5325 | |
14bb215d KB |
5326 | #define PQI_LUN_RESET_TIMEOUT_SECS 10 |
5327 | ||
5328 | static int pqi_wait_for_lun_reset_completion(struct pqi_ctrl_info *ctrl_info, | |
5329 | struct pqi_scsi_dev *device, struct completion *wait) | |
5330 | { | |
5331 | int rc; | |
14bb215d KB |
5332 | |
5333 | while (1) { | |
5334 | if (wait_for_completion_io_timeout(wait, | |
5335 | PQI_LUN_RESET_TIMEOUT_SECS * HZ)) { | |
5336 | rc = 0; | |
5337 | break; | |
6c223761 KB |
5338 | } |
5339 | ||
14bb215d KB |
5340 | pqi_check_ctrl_health(ctrl_info); |
5341 | if (pqi_ctrl_offline(ctrl_info)) { | |
4e8415e3 | 5342 | rc = -ENXIO; |
14bb215d KB |
5343 | break; |
5344 | } | |
6c223761 | 5345 | } |
6c223761 | 5346 | |
14bb215d | 5347 | return rc; |
6c223761 KB |
5348 | } |
5349 | ||
14bb215d | 5350 | static int pqi_lun_reset(struct pqi_ctrl_info *ctrl_info, |
6c223761 KB |
5351 | struct pqi_scsi_dev *device) |
5352 | { | |
5353 | int rc; | |
5354 | struct pqi_io_request *io_request; | |
5355 | DECLARE_COMPLETION_ONSTACK(wait); | |
5356 | struct pqi_task_management_request *request; | |
5357 | ||
6c223761 | 5358 | io_request = pqi_alloc_io_request(ctrl_info); |
14bb215d | 5359 | io_request->io_complete_callback = pqi_lun_reset_complete; |
6c223761 KB |
5360 | io_request->context = &wait; |
5361 | ||
5362 | request = io_request->iu; | |
5363 | memset(request, 0, sizeof(*request)); | |
5364 | ||
5365 | request->header.iu_type = PQI_REQUEST_IU_TASK_MANAGEMENT; | |
5366 | put_unaligned_le16(sizeof(*request) - PQI_REQUEST_HEADER_LENGTH, | |
5367 | &request->header.iu_length); | |
5368 | put_unaligned_le16(io_request->index, &request->request_id); | |
5369 | memcpy(request->lun_number, device->scsi3addr, | |
5370 | sizeof(request->lun_number)); | |
5371 | request->task_management_function = SOP_TASK_MANAGEMENT_LUN_RESET; | |
5372 | ||
5373 | pqi_start_io(ctrl_info, | |
5374 | &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH, | |
5375 | io_request); | |
5376 | ||
14bb215d KB |
5377 | rc = pqi_wait_for_lun_reset_completion(ctrl_info, device, &wait); |
5378 | if (rc == 0) | |
6c223761 | 5379 | rc = io_request->status; |
6c223761 KB |
5380 | |
5381 | pqi_free_io_request(io_request); | |
6c223761 KB |
5382 | |
5383 | return rc; | |
5384 | } | |
5385 | ||
3406384b MR |
5386 | #define PQI_LUN_RESET_RETRIES 3 |
5387 | #define PQI_LUN_RESET_RETRY_INTERVAL_MSECS 10000 | |
6c223761 KB |
5388 | /* Performs a reset at the LUN level. */ |
5389 | ||
5390 | static int pqi_device_reset(struct pqi_ctrl_info *ctrl_info, | |
5391 | struct pqi_scsi_dev *device) | |
5392 | { | |
5393 | int rc; | |
3406384b | 5394 | unsigned int retries; |
6c223761 | 5395 | |
3406384b MR |
5396 | for (retries = 0;;) { |
5397 | rc = pqi_lun_reset(ctrl_info, device); | |
5398 | if (rc != -EAGAIN || | |
5399 | ++retries > PQI_LUN_RESET_RETRIES) | |
5400 | break; | |
5401 | msleep(PQI_LUN_RESET_RETRY_INTERVAL_MSECS); | |
5402 | } | |
061ef06a | 5403 | if (rc == 0) |
1e46731e MR |
5404 | rc = pqi_device_wait_for_pending_io(ctrl_info, |
5405 | device, NO_TIMEOUT); | |
6c223761 | 5406 | |
14bb215d | 5407 | return rc == 0 ? SUCCESS : FAILED; |
6c223761 KB |
5408 | } |
5409 | ||
5410 | static int pqi_eh_device_reset_handler(struct scsi_cmnd *scmd) | |
5411 | { | |
5412 | int rc; | |
7561a7e4 | 5413 | struct Scsi_Host *shost; |
6c223761 KB |
5414 | struct pqi_ctrl_info *ctrl_info; |
5415 | struct pqi_scsi_dev *device; | |
5416 | ||
7561a7e4 KB |
5417 | shost = scmd->device->host; |
5418 | ctrl_info = shost_to_hba(shost); | |
6c223761 KB |
5419 | device = scmd->device->hostdata; |
5420 | ||
5421 | dev_err(&ctrl_info->pci_dev->dev, | |
5422 | "resetting scsi %d:%d:%d:%d\n", | |
7561a7e4 | 5423 | shost->host_no, device->bus, device->target, device->lun); |
6c223761 | 5424 | |
7561a7e4 KB |
5425 | pqi_check_ctrl_health(ctrl_info); |
5426 | if (pqi_ctrl_offline(ctrl_info)) { | |
5427 | rc = FAILED; | |
5428 | goto out; | |
5429 | } | |
6c223761 | 5430 | |
7561a7e4 KB |
5431 | mutex_lock(&ctrl_info->lun_reset_mutex); |
5432 | ||
5433 | pqi_ctrl_block_requests(ctrl_info); | |
5434 | pqi_ctrl_wait_until_quiesced(ctrl_info); | |
5435 | pqi_fail_io_queued_for_device(ctrl_info, device); | |
5436 | rc = pqi_wait_until_inbound_queues_empty(ctrl_info); | |
5437 | pqi_device_reset_start(device); | |
5438 | pqi_ctrl_unblock_requests(ctrl_info); | |
5439 | ||
5440 | if (rc) | |
5441 | rc = FAILED; | |
5442 | else | |
5443 | rc = pqi_device_reset(ctrl_info, device); | |
5444 | ||
5445 | pqi_device_reset_done(device); | |
5446 | ||
5447 | mutex_unlock(&ctrl_info->lun_reset_mutex); | |
5448 | ||
5449 | out: | |
6c223761 KB |
5450 | dev_err(&ctrl_info->pci_dev->dev, |
5451 | "reset of scsi %d:%d:%d:%d: %s\n", | |
7561a7e4 | 5452 | shost->host_no, device->bus, device->target, device->lun, |
6c223761 KB |
5453 | rc == SUCCESS ? "SUCCESS" : "FAILED"); |
5454 | ||
5455 | return rc; | |
5456 | } | |
5457 | ||
5458 | static int pqi_slave_alloc(struct scsi_device *sdev) | |
5459 | { | |
5460 | struct pqi_scsi_dev *device; | |
5461 | unsigned long flags; | |
5462 | struct pqi_ctrl_info *ctrl_info; | |
5463 | struct scsi_target *starget; | |
5464 | struct sas_rphy *rphy; | |
5465 | ||
5466 | ctrl_info = shost_to_hba(sdev->host); | |
5467 | ||
5468 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
5469 | ||
5470 | if (sdev_channel(sdev) == PQI_PHYSICAL_DEVICE_BUS) { | |
5471 | starget = scsi_target(sdev); | |
5472 | rphy = target_to_rphy(starget); | |
5473 | device = pqi_find_device_by_sas_rphy(ctrl_info, rphy); | |
5474 | if (device) { | |
5475 | device->target = sdev_id(sdev); | |
5476 | device->lun = sdev->lun; | |
5477 | device->target_lun_valid = true; | |
5478 | } | |
5479 | } else { | |
5480 | device = pqi_find_scsi_dev(ctrl_info, sdev_channel(sdev), | |
5481 | sdev_id(sdev), sdev->lun); | |
5482 | } | |
5483 | ||
94086f5b | 5484 | if (device) { |
6c223761 KB |
5485 | sdev->hostdata = device; |
5486 | device->sdev = sdev; | |
5487 | if (device->queue_depth) { | |
5488 | device->advertised_queue_depth = device->queue_depth; | |
5489 | scsi_change_queue_depth(sdev, | |
5490 | device->advertised_queue_depth); | |
5491 | } | |
b6e2ef67 DC |
5492 | if (pqi_is_logical_device(device)) |
5493 | pqi_disable_write_same(sdev); | |
2b447f81 DC |
5494 | else |
5495 | sdev->allow_restart = 1; | |
6c223761 KB |
5496 | } |
5497 | ||
5498 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); | |
5499 | ||
5500 | return 0; | |
5501 | } | |
5502 | ||
52198226 CH |
5503 | static int pqi_map_queues(struct Scsi_Host *shost) |
5504 | { | |
5505 | struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); | |
5506 | ||
f23f5bec | 5507 | return blk_mq_pci_map_queues(&shost->tag_set, ctrl_info->pci_dev, 0); |
52198226 CH |
5508 | } |
5509 | ||
6c223761 KB |
5510 | static int pqi_getpciinfo_ioctl(struct pqi_ctrl_info *ctrl_info, |
5511 | void __user *arg) | |
5512 | { | |
5513 | struct pci_dev *pci_dev; | |
5514 | u32 subsystem_vendor; | |
5515 | u32 subsystem_device; | |
5516 | cciss_pci_info_struct pciinfo; | |
5517 | ||
5518 | if (!arg) | |
5519 | return -EINVAL; | |
5520 | ||
5521 | pci_dev = ctrl_info->pci_dev; | |
5522 | ||
5523 | pciinfo.domain = pci_domain_nr(pci_dev->bus); | |
5524 | pciinfo.bus = pci_dev->bus->number; | |
5525 | pciinfo.dev_fn = pci_dev->devfn; | |
5526 | subsystem_vendor = pci_dev->subsystem_vendor; | |
5527 | subsystem_device = pci_dev->subsystem_device; | |
5528 | pciinfo.board_id = ((subsystem_device << 16) & 0xffff0000) | | |
5529 | subsystem_vendor; | |
5530 | ||
5531 | if (copy_to_user(arg, &pciinfo, sizeof(pciinfo))) | |
5532 | return -EFAULT; | |
5533 | ||
5534 | return 0; | |
5535 | } | |
5536 | ||
5537 | static int pqi_getdrivver_ioctl(void __user *arg) | |
5538 | { | |
5539 | u32 version; | |
5540 | ||
5541 | if (!arg) | |
5542 | return -EINVAL; | |
5543 | ||
5544 | version = (DRIVER_MAJOR << 28) | (DRIVER_MINOR << 24) | | |
5545 | (DRIVER_RELEASE << 16) | DRIVER_REVISION; | |
5546 | ||
5547 | if (copy_to_user(arg, &version, sizeof(version))) | |
5548 | return -EFAULT; | |
5549 | ||
5550 | return 0; | |
5551 | } | |
5552 | ||
5553 | struct ciss_error_info { | |
5554 | u8 scsi_status; | |
5555 | int command_status; | |
5556 | size_t sense_data_length; | |
5557 | }; | |
5558 | ||
5559 | static void pqi_error_info_to_ciss(struct pqi_raid_error_info *pqi_error_info, | |
5560 | struct ciss_error_info *ciss_error_info) | |
5561 | { | |
5562 | int ciss_cmd_status; | |
5563 | size_t sense_data_length; | |
5564 | ||
5565 | switch (pqi_error_info->data_out_result) { | |
5566 | case PQI_DATA_IN_OUT_GOOD: | |
5567 | ciss_cmd_status = CISS_CMD_STATUS_SUCCESS; | |
5568 | break; | |
5569 | case PQI_DATA_IN_OUT_UNDERFLOW: | |
5570 | ciss_cmd_status = CISS_CMD_STATUS_DATA_UNDERRUN; | |
5571 | break; | |
5572 | case PQI_DATA_IN_OUT_BUFFER_OVERFLOW: | |
5573 | ciss_cmd_status = CISS_CMD_STATUS_DATA_OVERRUN; | |
5574 | break; | |
5575 | case PQI_DATA_IN_OUT_PROTOCOL_ERROR: | |
5576 | case PQI_DATA_IN_OUT_BUFFER_ERROR: | |
5577 | case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA: | |
5578 | case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE: | |
5579 | case PQI_DATA_IN_OUT_ERROR: | |
5580 | ciss_cmd_status = CISS_CMD_STATUS_PROTOCOL_ERROR; | |
5581 | break; | |
5582 | case PQI_DATA_IN_OUT_HARDWARE_ERROR: | |
5583 | case PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR: | |
5584 | case PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT: | |
5585 | case PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED: | |
5586 | case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED: | |
5587 | case PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED: | |
5588 | case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST: | |
5589 | case PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION: | |
5590 | case PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED: | |
5591 | case PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ: | |
5592 | ciss_cmd_status = CISS_CMD_STATUS_HARDWARE_ERROR; | |
5593 | break; | |
5594 | case PQI_DATA_IN_OUT_UNSOLICITED_ABORT: | |
5595 | ciss_cmd_status = CISS_CMD_STATUS_UNSOLICITED_ABORT; | |
5596 | break; | |
5597 | case PQI_DATA_IN_OUT_ABORTED: | |
5598 | ciss_cmd_status = CISS_CMD_STATUS_ABORTED; | |
5599 | break; | |
5600 | case PQI_DATA_IN_OUT_TIMEOUT: | |
5601 | ciss_cmd_status = CISS_CMD_STATUS_TIMEOUT; | |
5602 | break; | |
5603 | default: | |
5604 | ciss_cmd_status = CISS_CMD_STATUS_TARGET_STATUS; | |
5605 | break; | |
5606 | } | |
5607 | ||
5608 | sense_data_length = | |
5609 | get_unaligned_le16(&pqi_error_info->sense_data_length); | |
5610 | if (sense_data_length == 0) | |
5611 | sense_data_length = | |
5612 | get_unaligned_le16(&pqi_error_info->response_data_length); | |
5613 | if (sense_data_length) | |
5614 | if (sense_data_length > sizeof(pqi_error_info->data)) | |
5615 | sense_data_length = sizeof(pqi_error_info->data); | |
5616 | ||
5617 | ciss_error_info->scsi_status = pqi_error_info->status; | |
5618 | ciss_error_info->command_status = ciss_cmd_status; | |
5619 | ciss_error_info->sense_data_length = sense_data_length; | |
5620 | } | |
5621 | ||
5622 | static int pqi_passthru_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg) | |
5623 | { | |
5624 | int rc; | |
5625 | char *kernel_buffer = NULL; | |
5626 | u16 iu_length; | |
5627 | size_t sense_data_length; | |
5628 | IOCTL_Command_struct iocommand; | |
5629 | struct pqi_raid_path_request request; | |
5630 | struct pqi_raid_error_info pqi_error_info; | |
5631 | struct ciss_error_info ciss_error_info; | |
5632 | ||
5633 | if (pqi_ctrl_offline(ctrl_info)) | |
5634 | return -ENXIO; | |
5635 | if (!arg) | |
5636 | return -EINVAL; | |
5637 | if (!capable(CAP_SYS_RAWIO)) | |
5638 | return -EPERM; | |
5639 | if (copy_from_user(&iocommand, arg, sizeof(iocommand))) | |
5640 | return -EFAULT; | |
5641 | if (iocommand.buf_size < 1 && | |
5642 | iocommand.Request.Type.Direction != XFER_NONE) | |
5643 | return -EINVAL; | |
5644 | if (iocommand.Request.CDBLen > sizeof(request.cdb)) | |
5645 | return -EINVAL; | |
5646 | if (iocommand.Request.Type.Type != TYPE_CMD) | |
5647 | return -EINVAL; | |
5648 | ||
5649 | switch (iocommand.Request.Type.Direction) { | |
5650 | case XFER_NONE: | |
5651 | case XFER_WRITE: | |
5652 | case XFER_READ: | |
41555d54 | 5653 | case XFER_READ | XFER_WRITE: |
6c223761 KB |
5654 | break; |
5655 | default: | |
5656 | return -EINVAL; | |
5657 | } | |
5658 | ||
5659 | if (iocommand.buf_size > 0) { | |
5660 | kernel_buffer = kmalloc(iocommand.buf_size, GFP_KERNEL); | |
5661 | if (!kernel_buffer) | |
5662 | return -ENOMEM; | |
5663 | if (iocommand.Request.Type.Direction & XFER_WRITE) { | |
5664 | if (copy_from_user(kernel_buffer, iocommand.buf, | |
5665 | iocommand.buf_size)) { | |
5666 | rc = -EFAULT; | |
5667 | goto out; | |
5668 | } | |
5669 | } else { | |
5670 | memset(kernel_buffer, 0, iocommand.buf_size); | |
5671 | } | |
5672 | } | |
5673 | ||
5674 | memset(&request, 0, sizeof(request)); | |
5675 | ||
5676 | request.header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO; | |
5677 | iu_length = offsetof(struct pqi_raid_path_request, sg_descriptors) - | |
5678 | PQI_REQUEST_HEADER_LENGTH; | |
5679 | memcpy(request.lun_number, iocommand.LUN_info.LunAddrBytes, | |
5680 | sizeof(request.lun_number)); | |
5681 | memcpy(request.cdb, iocommand.Request.CDB, iocommand.Request.CDBLen); | |
5682 | request.additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0; | |
5683 | ||
5684 | switch (iocommand.Request.Type.Direction) { | |
5685 | case XFER_NONE: | |
5686 | request.data_direction = SOP_NO_DIRECTION_FLAG; | |
5687 | break; | |
5688 | case XFER_WRITE: | |
5689 | request.data_direction = SOP_WRITE_FLAG; | |
5690 | break; | |
5691 | case XFER_READ: | |
5692 | request.data_direction = SOP_READ_FLAG; | |
5693 | break; | |
41555d54 KB |
5694 | case XFER_READ | XFER_WRITE: |
5695 | request.data_direction = SOP_BIDIRECTIONAL; | |
5696 | break; | |
6c223761 KB |
5697 | } |
5698 | ||
5699 | request.task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; | |
5700 | ||
5701 | if (iocommand.buf_size > 0) { | |
5702 | put_unaligned_le32(iocommand.buf_size, &request.buffer_length); | |
5703 | ||
5704 | rc = pqi_map_single(ctrl_info->pci_dev, | |
5705 | &request.sg_descriptors[0], kernel_buffer, | |
6917a9cc | 5706 | iocommand.buf_size, DMA_BIDIRECTIONAL); |
6c223761 KB |
5707 | if (rc) |
5708 | goto out; | |
5709 | ||
5710 | iu_length += sizeof(request.sg_descriptors[0]); | |
5711 | } | |
5712 | ||
5713 | put_unaligned_le16(iu_length, &request.header.iu_length); | |
5714 | ||
5715 | rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, | |
5716 | PQI_SYNC_FLAGS_INTERRUPTABLE, &pqi_error_info, NO_TIMEOUT); | |
5717 | ||
5718 | if (iocommand.buf_size > 0) | |
5719 | pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, | |
6917a9cc | 5720 | DMA_BIDIRECTIONAL); |
6c223761 KB |
5721 | |
5722 | memset(&iocommand.error_info, 0, sizeof(iocommand.error_info)); | |
5723 | ||
5724 | if (rc == 0) { | |
5725 | pqi_error_info_to_ciss(&pqi_error_info, &ciss_error_info); | |
5726 | iocommand.error_info.ScsiStatus = ciss_error_info.scsi_status; | |
5727 | iocommand.error_info.CommandStatus = | |
5728 | ciss_error_info.command_status; | |
5729 | sense_data_length = ciss_error_info.sense_data_length; | |
5730 | if (sense_data_length) { | |
5731 | if (sense_data_length > | |
5732 | sizeof(iocommand.error_info.SenseInfo)) | |
5733 | sense_data_length = | |
5734 | sizeof(iocommand.error_info.SenseInfo); | |
5735 | memcpy(iocommand.error_info.SenseInfo, | |
5736 | pqi_error_info.data, sense_data_length); | |
5737 | iocommand.error_info.SenseLen = sense_data_length; | |
5738 | } | |
5739 | } | |
5740 | ||
5741 | if (copy_to_user(arg, &iocommand, sizeof(iocommand))) { | |
5742 | rc = -EFAULT; | |
5743 | goto out; | |
5744 | } | |
5745 | ||
5746 | if (rc == 0 && iocommand.buf_size > 0 && | |
5747 | (iocommand.Request.Type.Direction & XFER_READ)) { | |
5748 | if (copy_to_user(iocommand.buf, kernel_buffer, | |
5749 | iocommand.buf_size)) { | |
5750 | rc = -EFAULT; | |
5751 | } | |
5752 | } | |
5753 | ||
5754 | out: | |
5755 | kfree(kernel_buffer); | |
5756 | ||
5757 | return rc; | |
5758 | } | |
5759 | ||
5760 | static int pqi_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) | |
5761 | { | |
5762 | int rc; | |
5763 | struct pqi_ctrl_info *ctrl_info; | |
5764 | ||
5765 | ctrl_info = shost_to_hba(sdev->host); | |
5766 | ||
5767 | switch (cmd) { | |
5768 | case CCISS_DEREGDISK: | |
5769 | case CCISS_REGNEWDISK: | |
5770 | case CCISS_REGNEWD: | |
5771 | rc = pqi_scan_scsi_devices(ctrl_info); | |
5772 | break; | |
5773 | case CCISS_GETPCIINFO: | |
5774 | rc = pqi_getpciinfo_ioctl(ctrl_info, arg); | |
5775 | break; | |
5776 | case CCISS_GETDRIVVER: | |
5777 | rc = pqi_getdrivver_ioctl(arg); | |
5778 | break; | |
5779 | case CCISS_PASSTHRU: | |
5780 | rc = pqi_passthru_ioctl(ctrl_info, arg); | |
5781 | break; | |
5782 | default: | |
5783 | rc = -EINVAL; | |
5784 | break; | |
5785 | } | |
5786 | ||
5787 | return rc; | |
5788 | } | |
5789 | ||
5790 | static ssize_t pqi_version_show(struct device *dev, | |
5791 | struct device_attribute *attr, char *buffer) | |
5792 | { | |
5793 | ssize_t count = 0; | |
5794 | struct Scsi_Host *shost; | |
5795 | struct pqi_ctrl_info *ctrl_info; | |
5796 | ||
5797 | shost = class_to_shost(dev); | |
5798 | ctrl_info = shost_to_hba(shost); | |
5799 | ||
5800 | count += snprintf(buffer + count, PAGE_SIZE - count, | |
5801 | " driver: %s\n", DRIVER_VERSION BUILD_TIMESTAMP); | |
5802 | ||
5803 | count += snprintf(buffer + count, PAGE_SIZE - count, | |
5804 | "firmware: %s\n", ctrl_info->firmware_version); | |
5805 | ||
5806 | return count; | |
5807 | } | |
5808 | ||
5809 | static ssize_t pqi_host_rescan_store(struct device *dev, | |
5810 | struct device_attribute *attr, const char *buffer, size_t count) | |
5811 | { | |
5812 | struct Scsi_Host *shost = class_to_shost(dev); | |
5813 | ||
5814 | pqi_scan_start(shost); | |
5815 | ||
5816 | return count; | |
5817 | } | |
5818 | ||
3c50976f KB |
5819 | static ssize_t pqi_lockup_action_show(struct device *dev, |
5820 | struct device_attribute *attr, char *buffer) | |
5821 | { | |
5822 | int count = 0; | |
5823 | unsigned int i; | |
5824 | ||
5825 | for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) { | |
5826 | if (pqi_lockup_actions[i].action == pqi_lockup_action) | |
5827 | count += snprintf(buffer + count, PAGE_SIZE - count, | |
5828 | "[%s] ", pqi_lockup_actions[i].name); | |
5829 | else | |
5830 | count += snprintf(buffer + count, PAGE_SIZE - count, | |
5831 | "%s ", pqi_lockup_actions[i].name); | |
5832 | } | |
5833 | ||
5834 | count += snprintf(buffer + count, PAGE_SIZE - count, "\n"); | |
5835 | ||
5836 | return count; | |
5837 | } | |
5838 | ||
5839 | static ssize_t pqi_lockup_action_store(struct device *dev, | |
5840 | struct device_attribute *attr, const char *buffer, size_t count) | |
5841 | { | |
5842 | unsigned int i; | |
5843 | char *action_name; | |
5844 | char action_name_buffer[32]; | |
5845 | ||
5846 | strlcpy(action_name_buffer, buffer, sizeof(action_name_buffer)); | |
5847 | action_name = strstrip(action_name_buffer); | |
5848 | ||
5849 | for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) { | |
5850 | if (strcmp(action_name, pqi_lockup_actions[i].name) == 0) { | |
5851 | pqi_lockup_action = pqi_lockup_actions[i].action; | |
5852 | return count; | |
5853 | } | |
5854 | } | |
5855 | ||
5856 | return -EINVAL; | |
5857 | } | |
5858 | ||
cbe0c7b1 KB |
5859 | static DEVICE_ATTR(version, 0444, pqi_version_show, NULL); |
5860 | static DEVICE_ATTR(rescan, 0200, NULL, pqi_host_rescan_store); | |
3c50976f KB |
5861 | static DEVICE_ATTR(lockup_action, 0644, |
5862 | pqi_lockup_action_show, pqi_lockup_action_store); | |
6c223761 KB |
5863 | |
5864 | static struct device_attribute *pqi_shost_attrs[] = { | |
5865 | &dev_attr_version, | |
5866 | &dev_attr_rescan, | |
3c50976f | 5867 | &dev_attr_lockup_action, |
6c223761 KB |
5868 | NULL |
5869 | }; | |
5870 | ||
cd128244 DC |
5871 | static ssize_t pqi_unique_id_show(struct device *dev, |
5872 | struct device_attribute *attr, char *buffer) | |
5873 | { | |
5874 | struct pqi_ctrl_info *ctrl_info; | |
5875 | struct scsi_device *sdev; | |
5876 | struct pqi_scsi_dev *device; | |
5877 | unsigned long flags; | |
5878 | unsigned char uid[16]; | |
5879 | ||
5880 | sdev = to_scsi_device(dev); | |
5881 | ctrl_info = shost_to_hba(sdev->host); | |
5882 | ||
5883 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
5884 | ||
5885 | device = sdev->hostdata; | |
5886 | if (!device) { | |
5887 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, | |
5888 | flags); | |
5889 | return -ENODEV; | |
5890 | } | |
5891 | memcpy(uid, device->unique_id, sizeof(uid)); | |
5892 | ||
5893 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); | |
5894 | ||
5995b236 MB |
5895 | return snprintf(buffer, PAGE_SIZE, |
5896 | "%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X\n", | |
5897 | uid[0], uid[1], uid[2], uid[3], | |
5898 | uid[4], uid[5], uid[6], uid[7], | |
5899 | uid[8], uid[9], uid[10], uid[11], | |
5900 | uid[12], uid[13], uid[14], uid[15]); | |
cd128244 DC |
5901 | } |
5902 | ||
5903 | static ssize_t pqi_lunid_show(struct device *dev, | |
5904 | struct device_attribute *attr, char *buffer) | |
5905 | { | |
5906 | struct pqi_ctrl_info *ctrl_info; | |
5907 | struct scsi_device *sdev; | |
5908 | struct pqi_scsi_dev *device; | |
5909 | unsigned long flags; | |
5910 | u8 lunid[8]; | |
5911 | ||
5912 | sdev = to_scsi_device(dev); | |
5913 | ctrl_info = shost_to_hba(sdev->host); | |
5914 | ||
5915 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
5916 | ||
5917 | device = sdev->hostdata; | |
5918 | if (!device) { | |
5919 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, | |
5920 | flags); | |
5921 | return -ENODEV; | |
5922 | } | |
5923 | memcpy(lunid, device->scsi3addr, sizeof(lunid)); | |
5924 | ||
5925 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); | |
5926 | ||
5927 | return snprintf(buffer, PAGE_SIZE, "0x%8phN\n", lunid); | |
5928 | } | |
5929 | ||
5930 | #define MAX_PATHS 8 | |
5931 | static ssize_t pqi_path_info_show(struct device *dev, | |
5932 | struct device_attribute *attr, char *buf) | |
5933 | { | |
5934 | struct pqi_ctrl_info *ctrl_info; | |
5935 | struct scsi_device *sdev; | |
5936 | struct pqi_scsi_dev *device; | |
5937 | unsigned long flags; | |
5938 | int i; | |
5939 | int output_len = 0; | |
5940 | u8 box; | |
5941 | u8 bay; | |
5942 | u8 path_map_index = 0; | |
5943 | char *active; | |
5944 | unsigned char phys_connector[2]; | |
5945 | ||
5946 | sdev = to_scsi_device(dev); | |
5947 | ctrl_info = shost_to_hba(sdev->host); | |
5948 | ||
5949 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
5950 | ||
5951 | device = sdev->hostdata; | |
5952 | if (!device) { | |
5953 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, | |
5954 | flags); | |
5955 | return -ENODEV; | |
5956 | } | |
5957 | ||
5958 | bay = device->bay; | |
5959 | for (i = 0; i < MAX_PATHS; i++) { | |
5960 | path_map_index = 1<<i; | |
5961 | if (i == device->active_path_index) | |
5962 | active = "Active"; | |
5963 | else if (device->path_map & path_map_index) | |
5964 | active = "Inactive"; | |
5965 | else | |
5966 | continue; | |
5967 | ||
5968 | output_len += scnprintf(buf + output_len, | |
5969 | PAGE_SIZE - output_len, | |
5970 | "[%d:%d:%d:%d] %20.20s ", | |
5971 | ctrl_info->scsi_host->host_no, | |
5972 | device->bus, device->target, | |
5973 | device->lun, | |
5974 | scsi_device_type(device->devtype)); | |
5975 | ||
5976 | if (device->devtype == TYPE_RAID || | |
5977 | pqi_is_logical_device(device)) | |
5978 | goto end_buffer; | |
5979 | ||
5980 | memcpy(&phys_connector, &device->phys_connector[i], | |
5981 | sizeof(phys_connector)); | |
5982 | if (phys_connector[0] < '0') | |
5983 | phys_connector[0] = '0'; | |
5984 | if (phys_connector[1] < '0') | |
5985 | phys_connector[1] = '0'; | |
5986 | ||
5987 | output_len += scnprintf(buf + output_len, | |
5988 | PAGE_SIZE - output_len, | |
5989 | "PORT: %.2s ", phys_connector); | |
5990 | ||
5991 | box = device->box[i]; | |
5992 | if (box != 0 && box != 0xFF) | |
5993 | output_len += scnprintf(buf + output_len, | |
5994 | PAGE_SIZE - output_len, | |
5995 | "BOX: %hhu ", box); | |
5996 | ||
5997 | if ((device->devtype == TYPE_DISK || | |
5998 | device->devtype == TYPE_ZBC) && | |
5999 | pqi_expose_device(device)) | |
6000 | output_len += scnprintf(buf + output_len, | |
6001 | PAGE_SIZE - output_len, | |
6002 | "BAY: %hhu ", bay); | |
6003 | ||
6004 | end_buffer: | |
6005 | output_len += scnprintf(buf + output_len, | |
6006 | PAGE_SIZE - output_len, | |
6007 | "%s\n", active); | |
6008 | } | |
6009 | ||
6010 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); | |
6011 | return output_len; | |
6012 | } | |
6013 | ||
6014 | ||
6c223761 KB |
6015 | static ssize_t pqi_sas_address_show(struct device *dev, |
6016 | struct device_attribute *attr, char *buffer) | |
6017 | { | |
6018 | struct pqi_ctrl_info *ctrl_info; | |
6019 | struct scsi_device *sdev; | |
6020 | struct pqi_scsi_dev *device; | |
6021 | unsigned long flags; | |
6022 | u64 sas_address; | |
6023 | ||
6024 | sdev = to_scsi_device(dev); | |
6025 | ctrl_info = shost_to_hba(sdev->host); | |
6026 | ||
6027 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
6028 | ||
6029 | device = sdev->hostdata; | |
6030 | if (pqi_is_logical_device(device)) { | |
6031 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, | |
6032 | flags); | |
6033 | return -ENODEV; | |
6034 | } | |
6035 | sas_address = device->sas_address; | |
6036 | ||
6037 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); | |
6038 | ||
6039 | return snprintf(buffer, PAGE_SIZE, "0x%016llx\n", sas_address); | |
6040 | } | |
6041 | ||
6042 | static ssize_t pqi_ssd_smart_path_enabled_show(struct device *dev, | |
6043 | struct device_attribute *attr, char *buffer) | |
6044 | { | |
6045 | struct pqi_ctrl_info *ctrl_info; | |
6046 | struct scsi_device *sdev; | |
6047 | struct pqi_scsi_dev *device; | |
6048 | unsigned long flags; | |
6049 | ||
6050 | sdev = to_scsi_device(dev); | |
6051 | ctrl_info = shost_to_hba(sdev->host); | |
6052 | ||
6053 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
6054 | ||
6055 | device = sdev->hostdata; | |
588a63fe | 6056 | buffer[0] = device->raid_bypass_enabled ? '1' : '0'; |
6c223761 KB |
6057 | buffer[1] = '\n'; |
6058 | buffer[2] = '\0'; | |
6059 | ||
6060 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); | |
6061 | ||
6062 | return 2; | |
6063 | } | |
6064 | ||
a9f93392 KB |
6065 | static ssize_t pqi_raid_level_show(struct device *dev, |
6066 | struct device_attribute *attr, char *buffer) | |
6067 | { | |
6068 | struct pqi_ctrl_info *ctrl_info; | |
6069 | struct scsi_device *sdev; | |
6070 | struct pqi_scsi_dev *device; | |
6071 | unsigned long flags; | |
6072 | char *raid_level; | |
6073 | ||
6074 | sdev = to_scsi_device(dev); | |
6075 | ctrl_info = shost_to_hba(sdev->host); | |
6076 | ||
6077 | spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); | |
6078 | ||
6079 | device = sdev->hostdata; | |
6080 | ||
6081 | if (pqi_is_logical_device(device)) | |
6082 | raid_level = pqi_raid_level_to_string(device->raid_level); | |
6083 | else | |
6084 | raid_level = "N/A"; | |
6085 | ||
6086 | spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); | |
6087 | ||
6088 | return snprintf(buffer, PAGE_SIZE, "%s\n", raid_level); | |
6089 | } | |
6090 | ||
cd128244 DC |
6091 | static DEVICE_ATTR(lunid, 0444, pqi_lunid_show, NULL); |
6092 | static DEVICE_ATTR(unique_id, 0444, pqi_unique_id_show, NULL); | |
6093 | static DEVICE_ATTR(path_info, 0444, pqi_path_info_show, NULL); | |
cbe0c7b1 KB |
6094 | static DEVICE_ATTR(sas_address, 0444, pqi_sas_address_show, NULL); |
6095 | static DEVICE_ATTR(ssd_smart_path_enabled, 0444, | |
6c223761 | 6096 | pqi_ssd_smart_path_enabled_show, NULL); |
a9f93392 | 6097 | static DEVICE_ATTR(raid_level, 0444, pqi_raid_level_show, NULL); |
6c223761 KB |
6098 | |
6099 | static struct device_attribute *pqi_sdev_attrs[] = { | |
cd128244 DC |
6100 | &dev_attr_lunid, |
6101 | &dev_attr_unique_id, | |
6102 | &dev_attr_path_info, | |
6c223761 KB |
6103 | &dev_attr_sas_address, |
6104 | &dev_attr_ssd_smart_path_enabled, | |
a9f93392 | 6105 | &dev_attr_raid_level, |
6c223761 KB |
6106 | NULL |
6107 | }; | |
6108 | ||
6109 | static struct scsi_host_template pqi_driver_template = { | |
6110 | .module = THIS_MODULE, | |
6111 | .name = DRIVER_NAME_SHORT, | |
6112 | .proc_name = DRIVER_NAME_SHORT, | |
6113 | .queuecommand = pqi_scsi_queue_command, | |
6114 | .scan_start = pqi_scan_start, | |
6115 | .scan_finished = pqi_scan_finished, | |
6116 | .this_id = -1, | |
6c223761 KB |
6117 | .eh_device_reset_handler = pqi_eh_device_reset_handler, |
6118 | .ioctl = pqi_ioctl, | |
6119 | .slave_alloc = pqi_slave_alloc, | |
52198226 | 6120 | .map_queues = pqi_map_queues, |
6c223761 KB |
6121 | .sdev_attrs = pqi_sdev_attrs, |
6122 | .shost_attrs = pqi_shost_attrs, | |
6123 | }; | |
6124 | ||
6125 | static int pqi_register_scsi(struct pqi_ctrl_info *ctrl_info) | |
6126 | { | |
6127 | int rc; | |
6128 | struct Scsi_Host *shost; | |
6129 | ||
6130 | shost = scsi_host_alloc(&pqi_driver_template, sizeof(ctrl_info)); | |
6131 | if (!shost) { | |
6132 | dev_err(&ctrl_info->pci_dev->dev, | |
6133 | "scsi_host_alloc failed for controller %u\n", | |
6134 | ctrl_info->ctrl_id); | |
6135 | return -ENOMEM; | |
6136 | } | |
6137 | ||
6138 | shost->io_port = 0; | |
6139 | shost->n_io_port = 0; | |
6140 | shost->this_id = -1; | |
6141 | shost->max_channel = PQI_MAX_BUS; | |
6142 | shost->max_cmd_len = MAX_COMMAND_SIZE; | |
6143 | shost->max_lun = ~0; | |
6144 | shost->max_id = ~0; | |
6145 | shost->max_sectors = ctrl_info->max_sectors; | |
6146 | shost->can_queue = ctrl_info->scsi_ml_can_queue; | |
6147 | shost->cmd_per_lun = shost->can_queue; | |
6148 | shost->sg_tablesize = ctrl_info->sg_tablesize; | |
6149 | shost->transportt = pqi_sas_transport_template; | |
52198226 | 6150 | shost->irq = pci_irq_vector(ctrl_info->pci_dev, 0); |
6c223761 KB |
6151 | shost->unique_id = shost->irq; |
6152 | shost->nr_hw_queues = ctrl_info->num_queue_groups; | |
6153 | shost->hostdata[0] = (unsigned long)ctrl_info; | |
6154 | ||
6155 | rc = scsi_add_host(shost, &ctrl_info->pci_dev->dev); | |
6156 | if (rc) { | |
6157 | dev_err(&ctrl_info->pci_dev->dev, | |
6158 | "scsi_add_host failed for controller %u\n", | |
6159 | ctrl_info->ctrl_id); | |
6160 | goto free_host; | |
6161 | } | |
6162 | ||
6163 | rc = pqi_add_sas_host(shost, ctrl_info); | |
6164 | if (rc) { | |
6165 | dev_err(&ctrl_info->pci_dev->dev, | |
6166 | "add SAS host failed for controller %u\n", | |
6167 | ctrl_info->ctrl_id); | |
6168 | goto remove_host; | |
6169 | } | |
6170 | ||
6171 | ctrl_info->scsi_host = shost; | |
6172 | ||
6173 | return 0; | |
6174 | ||
6175 | remove_host: | |
6176 | scsi_remove_host(shost); | |
6177 | free_host: | |
6178 | scsi_host_put(shost); | |
6179 | ||
6180 | return rc; | |
6181 | } | |
6182 | ||
6183 | static void pqi_unregister_scsi(struct pqi_ctrl_info *ctrl_info) | |
6184 | { | |
6185 | struct Scsi_Host *shost; | |
6186 | ||
6187 | pqi_delete_sas_host(ctrl_info); | |
6188 | ||
6189 | shost = ctrl_info->scsi_host; | |
6190 | if (!shost) | |
6191 | return; | |
6192 | ||
6193 | scsi_remove_host(shost); | |
6194 | scsi_host_put(shost); | |
6195 | } | |
6196 | ||
336b6819 KB |
6197 | static int pqi_wait_for_pqi_reset_completion(struct pqi_ctrl_info *ctrl_info) |
6198 | { | |
6199 | int rc = 0; | |
6200 | struct pqi_device_registers __iomem *pqi_registers; | |
6201 | unsigned long timeout; | |
6202 | unsigned int timeout_msecs; | |
6203 | union pqi_reset_register reset_reg; | |
6c223761 | 6204 | |
336b6819 KB |
6205 | pqi_registers = ctrl_info->pqi_registers; |
6206 | timeout_msecs = readw(&pqi_registers->max_reset_timeout) * 100; | |
6207 | timeout = msecs_to_jiffies(timeout_msecs) + jiffies; | |
6208 | ||
6209 | while (1) { | |
6210 | msleep(PQI_RESET_POLL_INTERVAL_MSECS); | |
6211 | reset_reg.all_bits = readl(&pqi_registers->device_reset); | |
6212 | if (reset_reg.bits.reset_action == PQI_RESET_ACTION_COMPLETED) | |
6213 | break; | |
6214 | pqi_check_ctrl_health(ctrl_info); | |
6215 | if (pqi_ctrl_offline(ctrl_info)) { | |
6216 | rc = -ENXIO; | |
6217 | break; | |
6218 | } | |
6219 | if (time_after(jiffies, timeout)) { | |
6220 | rc = -ETIMEDOUT; | |
6221 | break; | |
6222 | } | |
6223 | } | |
6224 | ||
6225 | return rc; | |
6226 | } | |
6c223761 KB |
6227 | |
6228 | static int pqi_reset(struct pqi_ctrl_info *ctrl_info) | |
6229 | { | |
6230 | int rc; | |
336b6819 KB |
6231 | union pqi_reset_register reset_reg; |
6232 | ||
6233 | if (ctrl_info->pqi_reset_quiesce_supported) { | |
6234 | rc = sis_pqi_reset_quiesce(ctrl_info); | |
6235 | if (rc) { | |
6236 | dev_err(&ctrl_info->pci_dev->dev, | |
6237 | "PQI reset failed during quiesce with error %d\n", | |
6238 | rc); | |
6239 | return rc; | |
6240 | } | |
6241 | } | |
6c223761 | 6242 | |
336b6819 KB |
6243 | reset_reg.all_bits = 0; |
6244 | reset_reg.bits.reset_type = PQI_RESET_TYPE_HARD_RESET; | |
6245 | reset_reg.bits.reset_action = PQI_RESET_ACTION_RESET; | |
6c223761 | 6246 | |
336b6819 | 6247 | writel(reset_reg.all_bits, &ctrl_info->pqi_registers->device_reset); |
6c223761 | 6248 | |
336b6819 | 6249 | rc = pqi_wait_for_pqi_reset_completion(ctrl_info); |
6c223761 KB |
6250 | if (rc) |
6251 | dev_err(&ctrl_info->pci_dev->dev, | |
336b6819 | 6252 | "PQI reset failed with error %d\n", rc); |
6c223761 KB |
6253 | |
6254 | return rc; | |
6255 | } | |
6256 | ||
6257 | static int pqi_get_ctrl_firmware_version(struct pqi_ctrl_info *ctrl_info) | |
6258 | { | |
6259 | int rc; | |
6260 | struct bmic_identify_controller *identify; | |
6261 | ||
6262 | identify = kmalloc(sizeof(*identify), GFP_KERNEL); | |
6263 | if (!identify) | |
6264 | return -ENOMEM; | |
6265 | ||
6266 | rc = pqi_identify_controller(ctrl_info, identify); | |
6267 | if (rc) | |
6268 | goto out; | |
6269 | ||
6270 | memcpy(ctrl_info->firmware_version, identify->firmware_version, | |
6271 | sizeof(identify->firmware_version)); | |
6272 | ctrl_info->firmware_version[sizeof(identify->firmware_version)] = '\0'; | |
6273 | snprintf(ctrl_info->firmware_version + | |
6274 | strlen(ctrl_info->firmware_version), | |
6275 | sizeof(ctrl_info->firmware_version), | |
6276 | "-%u", get_unaligned_le16(&identify->firmware_build_number)); | |
6277 | ||
6278 | out: | |
6279 | kfree(identify); | |
6280 | ||
6281 | return rc; | |
6282 | } | |
6283 | ||
b212c251 KB |
6284 | struct pqi_config_table_section_info { |
6285 | struct pqi_ctrl_info *ctrl_info; | |
6286 | void *section; | |
6287 | u32 section_offset; | |
6288 | void __iomem *section_iomem_addr; | |
6289 | }; | |
6290 | ||
6291 | static inline bool pqi_is_firmware_feature_supported( | |
6292 | struct pqi_config_table_firmware_features *firmware_features, | |
6293 | unsigned int bit_position) | |
6294 | { | |
6295 | unsigned int byte_index; | |
6296 | ||
6297 | byte_index = bit_position / BITS_PER_BYTE; | |
6298 | ||
6299 | if (byte_index >= le16_to_cpu(firmware_features->num_elements)) | |
6300 | return false; | |
6301 | ||
6302 | return firmware_features->features_supported[byte_index] & | |
6303 | (1 << (bit_position % BITS_PER_BYTE)) ? true : false; | |
6304 | } | |
6305 | ||
6306 | static inline bool pqi_is_firmware_feature_enabled( | |
6307 | struct pqi_config_table_firmware_features *firmware_features, | |
6308 | void __iomem *firmware_features_iomem_addr, | |
6309 | unsigned int bit_position) | |
6310 | { | |
6311 | unsigned int byte_index; | |
6312 | u8 __iomem *features_enabled_iomem_addr; | |
6313 | ||
6314 | byte_index = (bit_position / BITS_PER_BYTE) + | |
6315 | (le16_to_cpu(firmware_features->num_elements) * 2); | |
6316 | ||
6317 | features_enabled_iomem_addr = firmware_features_iomem_addr + | |
6318 | offsetof(struct pqi_config_table_firmware_features, | |
6319 | features_supported) + byte_index; | |
6320 | ||
6321 | return *((__force u8 *)features_enabled_iomem_addr) & | |
6322 | (1 << (bit_position % BITS_PER_BYTE)) ? true : false; | |
6323 | } | |
6324 | ||
6325 | static inline void pqi_request_firmware_feature( | |
6326 | struct pqi_config_table_firmware_features *firmware_features, | |
6327 | unsigned int bit_position) | |
6328 | { | |
6329 | unsigned int byte_index; | |
6330 | ||
6331 | byte_index = (bit_position / BITS_PER_BYTE) + | |
6332 | le16_to_cpu(firmware_features->num_elements); | |
6333 | ||
6334 | firmware_features->features_supported[byte_index] |= | |
6335 | (1 << (bit_position % BITS_PER_BYTE)); | |
6336 | } | |
6337 | ||
6338 | static int pqi_config_table_update(struct pqi_ctrl_info *ctrl_info, | |
6339 | u16 first_section, u16 last_section) | |
6340 | { | |
6341 | struct pqi_vendor_general_request request; | |
6342 | ||
6343 | memset(&request, 0, sizeof(request)); | |
6344 | ||
6345 | request.header.iu_type = PQI_REQUEST_IU_VENDOR_GENERAL; | |
6346 | put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH, | |
6347 | &request.header.iu_length); | |
6348 | put_unaligned_le16(PQI_VENDOR_GENERAL_CONFIG_TABLE_UPDATE, | |
6349 | &request.function_code); | |
6350 | put_unaligned_le16(first_section, | |
6351 | &request.data.config_table_update.first_section); | |
6352 | put_unaligned_le16(last_section, | |
6353 | &request.data.config_table_update.last_section); | |
6354 | ||
6355 | return pqi_submit_raid_request_synchronous(ctrl_info, &request.header, | |
6356 | 0, NULL, NO_TIMEOUT); | |
6357 | } | |
6358 | ||
6359 | static int pqi_enable_firmware_features(struct pqi_ctrl_info *ctrl_info, | |
6360 | struct pqi_config_table_firmware_features *firmware_features, | |
6361 | void __iomem *firmware_features_iomem_addr) | |
6362 | { | |
6363 | void *features_requested; | |
6364 | void __iomem *features_requested_iomem_addr; | |
6365 | ||
6366 | features_requested = firmware_features->features_supported + | |
6367 | le16_to_cpu(firmware_features->num_elements); | |
6368 | ||
6369 | features_requested_iomem_addr = firmware_features_iomem_addr + | |
6370 | (features_requested - (void *)firmware_features); | |
6371 | ||
6372 | memcpy_toio(features_requested_iomem_addr, features_requested, | |
6373 | le16_to_cpu(firmware_features->num_elements)); | |
6374 | ||
6375 | return pqi_config_table_update(ctrl_info, | |
6376 | PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES, | |
6377 | PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES); | |
6378 | } | |
6379 | ||
6380 | struct pqi_firmware_feature { | |
6381 | char *feature_name; | |
6382 | unsigned int feature_bit; | |
6383 | bool supported; | |
6384 | bool enabled; | |
6385 | void (*feature_status)(struct pqi_ctrl_info *ctrl_info, | |
6386 | struct pqi_firmware_feature *firmware_feature); | |
6387 | }; | |
6388 | ||
6389 | static void pqi_firmware_feature_status(struct pqi_ctrl_info *ctrl_info, | |
6390 | struct pqi_firmware_feature *firmware_feature) | |
6391 | { | |
6392 | if (!firmware_feature->supported) { | |
6393 | dev_info(&ctrl_info->pci_dev->dev, "%s not supported by controller\n", | |
6394 | firmware_feature->feature_name); | |
6395 | return; | |
6396 | } | |
6397 | ||
6398 | if (firmware_feature->enabled) { | |
6399 | dev_info(&ctrl_info->pci_dev->dev, | |
6400 | "%s enabled\n", firmware_feature->feature_name); | |
6401 | return; | |
6402 | } | |
6403 | ||
6404 | dev_err(&ctrl_info->pci_dev->dev, "failed to enable %s\n", | |
6405 | firmware_feature->feature_name); | |
6406 | } | |
6407 | ||
6408 | static inline void pqi_firmware_feature_update(struct pqi_ctrl_info *ctrl_info, | |
6409 | struct pqi_firmware_feature *firmware_feature) | |
6410 | { | |
6411 | if (firmware_feature->feature_status) | |
6412 | firmware_feature->feature_status(ctrl_info, firmware_feature); | |
6413 | } | |
6414 | ||
6415 | static DEFINE_MUTEX(pqi_firmware_features_mutex); | |
6416 | ||
6417 | static struct pqi_firmware_feature pqi_firmware_features[] = { | |
6418 | { | |
6419 | .feature_name = "Online Firmware Activation", | |
6420 | .feature_bit = PQI_FIRMWARE_FEATURE_OFA, | |
6421 | .feature_status = pqi_firmware_feature_status, | |
6422 | }, | |
6423 | { | |
6424 | .feature_name = "Serial Management Protocol", | |
6425 | .feature_bit = PQI_FIRMWARE_FEATURE_SMP, | |
6426 | .feature_status = pqi_firmware_feature_status, | |
6427 | }, | |
6428 | }; | |
6429 | ||
6430 | static void pqi_process_firmware_features( | |
6431 | struct pqi_config_table_section_info *section_info) | |
6432 | { | |
6433 | int rc; | |
6434 | struct pqi_ctrl_info *ctrl_info; | |
6435 | struct pqi_config_table_firmware_features *firmware_features; | |
6436 | void __iomem *firmware_features_iomem_addr; | |
6437 | unsigned int i; | |
6438 | unsigned int num_features_supported; | |
6439 | ||
6440 | ctrl_info = section_info->ctrl_info; | |
6441 | firmware_features = section_info->section; | |
6442 | firmware_features_iomem_addr = section_info->section_iomem_addr; | |
6443 | ||
6444 | for (i = 0, num_features_supported = 0; | |
6445 | i < ARRAY_SIZE(pqi_firmware_features); i++) { | |
6446 | if (pqi_is_firmware_feature_supported(firmware_features, | |
6447 | pqi_firmware_features[i].feature_bit)) { | |
6448 | pqi_firmware_features[i].supported = true; | |
6449 | num_features_supported++; | |
6450 | } else { | |
6451 | pqi_firmware_feature_update(ctrl_info, | |
6452 | &pqi_firmware_features[i]); | |
6453 | } | |
6454 | } | |
6455 | ||
6456 | if (num_features_supported == 0) | |
6457 | return; | |
6458 | ||
6459 | for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) { | |
6460 | if (!pqi_firmware_features[i].supported) | |
6461 | continue; | |
6462 | pqi_request_firmware_feature(firmware_features, | |
6463 | pqi_firmware_features[i].feature_bit); | |
6464 | } | |
6465 | ||
6466 | rc = pqi_enable_firmware_features(ctrl_info, firmware_features, | |
6467 | firmware_features_iomem_addr); | |
6468 | if (rc) { | |
6469 | dev_err(&ctrl_info->pci_dev->dev, | |
6470 | "failed to enable firmware features in PQI configuration table\n"); | |
6471 | for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) { | |
6472 | if (!pqi_firmware_features[i].supported) | |
6473 | continue; | |
6474 | pqi_firmware_feature_update(ctrl_info, | |
6475 | &pqi_firmware_features[i]); | |
6476 | } | |
6477 | return; | |
6478 | } | |
6479 | ||
6480 | for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) { | |
6481 | if (!pqi_firmware_features[i].supported) | |
6482 | continue; | |
6483 | if (pqi_is_firmware_feature_enabled(firmware_features, | |
6484 | firmware_features_iomem_addr, | |
6485 | pqi_firmware_features[i].feature_bit)) | |
6486 | pqi_firmware_features[i].enabled = true; | |
6487 | pqi_firmware_feature_update(ctrl_info, | |
6488 | &pqi_firmware_features[i]); | |
6489 | } | |
6490 | } | |
6491 | ||
6492 | static void pqi_init_firmware_features(void) | |
6493 | { | |
6494 | unsigned int i; | |
6495 | ||
6496 | for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) { | |
6497 | pqi_firmware_features[i].supported = false; | |
6498 | pqi_firmware_features[i].enabled = false; | |
6499 | } | |
6500 | } | |
6501 | ||
6502 | static void pqi_process_firmware_features_section( | |
6503 | struct pqi_config_table_section_info *section_info) | |
6504 | { | |
6505 | mutex_lock(&pqi_firmware_features_mutex); | |
6506 | pqi_init_firmware_features(); | |
6507 | pqi_process_firmware_features(section_info); | |
6508 | mutex_unlock(&pqi_firmware_features_mutex); | |
6509 | } | |
6510 | ||
98f87667 KB |
6511 | static int pqi_process_config_table(struct pqi_ctrl_info *ctrl_info) |
6512 | { | |
6513 | u32 table_length; | |
6514 | u32 section_offset; | |
6515 | void __iomem *table_iomem_addr; | |
6516 | struct pqi_config_table *config_table; | |
6517 | struct pqi_config_table_section_header *section; | |
b212c251 | 6518 | struct pqi_config_table_section_info section_info; |
98f87667 KB |
6519 | |
6520 | table_length = ctrl_info->config_table_length; | |
b212c251 KB |
6521 | if (table_length == 0) |
6522 | return 0; | |
98f87667 KB |
6523 | |
6524 | config_table = kmalloc(table_length, GFP_KERNEL); | |
6525 | if (!config_table) { | |
6526 | dev_err(&ctrl_info->pci_dev->dev, | |
d87d5474 | 6527 | "failed to allocate memory for PQI configuration table\n"); |
98f87667 KB |
6528 | return -ENOMEM; |
6529 | } | |
6530 | ||
6531 | /* | |
6532 | * Copy the config table contents from I/O memory space into the | |
6533 | * temporary buffer. | |
6534 | */ | |
6535 | table_iomem_addr = ctrl_info->iomem_base + | |
6536 | ctrl_info->config_table_offset; | |
6537 | memcpy_fromio(config_table, table_iomem_addr, table_length); | |
6538 | ||
b212c251 | 6539 | section_info.ctrl_info = ctrl_info; |
98f87667 KB |
6540 | section_offset = |
6541 | get_unaligned_le32(&config_table->first_section_offset); | |
6542 | ||
6543 | while (section_offset) { | |
6544 | section = (void *)config_table + section_offset; | |
6545 | ||
b212c251 KB |
6546 | section_info.section = section; |
6547 | section_info.section_offset = section_offset; | |
6548 | section_info.section_iomem_addr = | |
6549 | table_iomem_addr + section_offset; | |
6550 | ||
98f87667 | 6551 | switch (get_unaligned_le16(§ion->section_id)) { |
b212c251 KB |
6552 | case PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES: |
6553 | pqi_process_firmware_features_section(§ion_info); | |
6554 | break; | |
98f87667 | 6555 | case PQI_CONFIG_TABLE_SECTION_HEARTBEAT: |
5a259e32 KB |
6556 | if (pqi_disable_heartbeat) |
6557 | dev_warn(&ctrl_info->pci_dev->dev, | |
6558 | "heartbeat disabled by module parameter\n"); | |
6559 | else | |
6560 | ctrl_info->heartbeat_counter = | |
6561 | table_iomem_addr + | |
6562 | section_offset + | |
6563 | offsetof( | |
6564 | struct pqi_config_table_heartbeat, | |
6565 | heartbeat_counter); | |
98f87667 KB |
6566 | break; |
6567 | } | |
6568 | ||
6569 | section_offset = | |
6570 | get_unaligned_le16(§ion->next_section_offset); | |
6571 | } | |
6572 | ||
6573 | kfree(config_table); | |
6574 | ||
6575 | return 0; | |
6576 | } | |
6577 | ||
162d7753 KB |
6578 | /* Switches the controller from PQI mode back into SIS mode. */ |
6579 | ||
6580 | static int pqi_revert_to_sis_mode(struct pqi_ctrl_info *ctrl_info) | |
6581 | { | |
6582 | int rc; | |
6583 | ||
061ef06a | 6584 | pqi_change_irq_mode(ctrl_info, IRQ_MODE_NONE); |
162d7753 KB |
6585 | rc = pqi_reset(ctrl_info); |
6586 | if (rc) | |
6587 | return rc; | |
4f078e24 KB |
6588 | rc = sis_reenable_sis_mode(ctrl_info); |
6589 | if (rc) { | |
6590 | dev_err(&ctrl_info->pci_dev->dev, | |
6591 | "re-enabling SIS mode failed with error %d\n", rc); | |
6592 | return rc; | |
6593 | } | |
162d7753 KB |
6594 | pqi_save_ctrl_mode(ctrl_info, SIS_MODE); |
6595 | ||
6596 | return 0; | |
6597 | } | |
6598 | ||
6599 | /* | |
6600 | * If the controller isn't already in SIS mode, this function forces it into | |
6601 | * SIS mode. | |
6602 | */ | |
6603 | ||
6604 | static int pqi_force_sis_mode(struct pqi_ctrl_info *ctrl_info) | |
ff6abb73 KB |
6605 | { |
6606 | if (!sis_is_firmware_running(ctrl_info)) | |
6607 | return -ENXIO; | |
6608 | ||
162d7753 KB |
6609 | if (pqi_get_ctrl_mode(ctrl_info) == SIS_MODE) |
6610 | return 0; | |
6611 | ||
6612 | if (sis_is_kernel_up(ctrl_info)) { | |
6613 | pqi_save_ctrl_mode(ctrl_info, SIS_MODE); | |
6614 | return 0; | |
ff6abb73 KB |
6615 | } |
6616 | ||
162d7753 | 6617 | return pqi_revert_to_sis_mode(ctrl_info); |
ff6abb73 KB |
6618 | } |
6619 | ||
6c223761 KB |
6620 | static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info) |
6621 | { | |
6622 | int rc; | |
6623 | ||
162d7753 KB |
6624 | rc = pqi_force_sis_mode(ctrl_info); |
6625 | if (rc) | |
6626 | return rc; | |
6c223761 KB |
6627 | |
6628 | /* | |
6629 | * Wait until the controller is ready to start accepting SIS | |
6630 | * commands. | |
6631 | */ | |
6632 | rc = sis_wait_for_ctrl_ready(ctrl_info); | |
8845fdfa | 6633 | if (rc) |
6c223761 | 6634 | return rc; |
6c223761 KB |
6635 | |
6636 | /* | |
6637 | * Get the controller properties. This allows us to determine | |
6638 | * whether or not it supports PQI mode. | |
6639 | */ | |
6640 | rc = sis_get_ctrl_properties(ctrl_info); | |
6641 | if (rc) { | |
6642 | dev_err(&ctrl_info->pci_dev->dev, | |
6643 | "error obtaining controller properties\n"); | |
6644 | return rc; | |
6645 | } | |
6646 | ||
6647 | rc = sis_get_pqi_capabilities(ctrl_info); | |
6648 | if (rc) { | |
6649 | dev_err(&ctrl_info->pci_dev->dev, | |
6650 | "error obtaining controller capabilities\n"); | |
6651 | return rc; | |
6652 | } | |
6653 | ||
d727a776 KB |
6654 | if (reset_devices) { |
6655 | if (ctrl_info->max_outstanding_requests > | |
6656 | PQI_MAX_OUTSTANDING_REQUESTS_KDUMP) | |
6657 | ctrl_info->max_outstanding_requests = | |
6658 | PQI_MAX_OUTSTANDING_REQUESTS_KDUMP; | |
6659 | } else { | |
6660 | if (ctrl_info->max_outstanding_requests > | |
6661 | PQI_MAX_OUTSTANDING_REQUESTS) | |
6662 | ctrl_info->max_outstanding_requests = | |
6663 | PQI_MAX_OUTSTANDING_REQUESTS; | |
6664 | } | |
6c223761 KB |
6665 | |
6666 | pqi_calculate_io_resources(ctrl_info); | |
6667 | ||
6668 | rc = pqi_alloc_error_buffer(ctrl_info); | |
6669 | if (rc) { | |
6670 | dev_err(&ctrl_info->pci_dev->dev, | |
6671 | "failed to allocate PQI error buffer\n"); | |
6672 | return rc; | |
6673 | } | |
6674 | ||
6675 | /* | |
6676 | * If the function we are about to call succeeds, the | |
6677 | * controller will transition from legacy SIS mode | |
6678 | * into PQI mode. | |
6679 | */ | |
6680 | rc = sis_init_base_struct_addr(ctrl_info); | |
6681 | if (rc) { | |
6682 | dev_err(&ctrl_info->pci_dev->dev, | |
6683 | "error initializing PQI mode\n"); | |
6684 | return rc; | |
6685 | } | |
6686 | ||
6687 | /* Wait for the controller to complete the SIS -> PQI transition. */ | |
6688 | rc = pqi_wait_for_pqi_mode_ready(ctrl_info); | |
6689 | if (rc) { | |
6690 | dev_err(&ctrl_info->pci_dev->dev, | |
6691 | "transition to PQI mode failed\n"); | |
6692 | return rc; | |
6693 | } | |
6694 | ||
6695 | /* From here on, we are running in PQI mode. */ | |
6696 | ctrl_info->pqi_mode_enabled = true; | |
ff6abb73 | 6697 | pqi_save_ctrl_mode(ctrl_info, PQI_MODE); |
6c223761 KB |
6698 | |
6699 | rc = pqi_alloc_admin_queues(ctrl_info); | |
6700 | if (rc) { | |
6701 | dev_err(&ctrl_info->pci_dev->dev, | |
d87d5474 | 6702 | "failed to allocate admin queues\n"); |
6c223761 KB |
6703 | return rc; |
6704 | } | |
6705 | ||
6706 | rc = pqi_create_admin_queues(ctrl_info); | |
6707 | if (rc) { | |
6708 | dev_err(&ctrl_info->pci_dev->dev, | |
6709 | "error creating admin queues\n"); | |
6710 | return rc; | |
6711 | } | |
6712 | ||
6713 | rc = pqi_report_device_capability(ctrl_info); | |
6714 | if (rc) { | |
6715 | dev_err(&ctrl_info->pci_dev->dev, | |
6716 | "obtaining device capability failed\n"); | |
6717 | return rc; | |
6718 | } | |
6719 | ||
6720 | rc = pqi_validate_device_capability(ctrl_info); | |
6721 | if (rc) | |
6722 | return rc; | |
6723 | ||
6724 | pqi_calculate_queue_resources(ctrl_info); | |
6725 | ||
6726 | rc = pqi_enable_msix_interrupts(ctrl_info); | |
6727 | if (rc) | |
6728 | return rc; | |
6729 | ||
6730 | if (ctrl_info->num_msix_vectors_enabled < ctrl_info->num_queue_groups) { | |
6731 | ctrl_info->max_msix_vectors = | |
6732 | ctrl_info->num_msix_vectors_enabled; | |
6733 | pqi_calculate_queue_resources(ctrl_info); | |
6734 | } | |
6735 | ||
6736 | rc = pqi_alloc_io_resources(ctrl_info); | |
6737 | if (rc) | |
6738 | return rc; | |
6739 | ||
6740 | rc = pqi_alloc_operational_queues(ctrl_info); | |
d87d5474 KB |
6741 | if (rc) { |
6742 | dev_err(&ctrl_info->pci_dev->dev, | |
6743 | "failed to allocate operational queues\n"); | |
6c223761 | 6744 | return rc; |
d87d5474 | 6745 | } |
6c223761 KB |
6746 | |
6747 | pqi_init_operational_queues(ctrl_info); | |
6748 | ||
6749 | rc = pqi_request_irqs(ctrl_info); | |
6750 | if (rc) | |
6751 | return rc; | |
6752 | ||
6c223761 KB |
6753 | rc = pqi_create_queues(ctrl_info); |
6754 | if (rc) | |
6755 | return rc; | |
6756 | ||
061ef06a KB |
6757 | pqi_change_irq_mode(ctrl_info, IRQ_MODE_MSIX); |
6758 | ||
6759 | ctrl_info->controller_online = true; | |
b212c251 KB |
6760 | |
6761 | rc = pqi_process_config_table(ctrl_info); | |
6762 | if (rc) | |
6763 | return rc; | |
6764 | ||
061ef06a | 6765 | pqi_start_heartbeat_timer(ctrl_info); |
6c223761 | 6766 | |
6a50d6ad | 6767 | rc = pqi_enable_events(ctrl_info); |
6c223761 KB |
6768 | if (rc) { |
6769 | dev_err(&ctrl_info->pci_dev->dev, | |
6a50d6ad | 6770 | "error enabling events\n"); |
6c223761 KB |
6771 | return rc; |
6772 | } | |
6773 | ||
6c223761 KB |
6774 | /* Register with the SCSI subsystem. */ |
6775 | rc = pqi_register_scsi(ctrl_info); | |
6776 | if (rc) | |
6777 | return rc; | |
6778 | ||
6779 | rc = pqi_get_ctrl_firmware_version(ctrl_info); | |
6780 | if (rc) { | |
6781 | dev_err(&ctrl_info->pci_dev->dev, | |
6782 | "error obtaining firmware version\n"); | |
6783 | return rc; | |
6784 | } | |
6785 | ||
171c2865 DC |
6786 | rc = pqi_set_diag_rescan(ctrl_info); |
6787 | if (rc) { | |
6788 | dev_err(&ctrl_info->pci_dev->dev, | |
6789 | "error enabling multi-lun rescan\n"); | |
6790 | return rc; | |
6791 | } | |
6792 | ||
6c223761 KB |
6793 | rc = pqi_write_driver_version_to_host_wellness(ctrl_info); |
6794 | if (rc) { | |
6795 | dev_err(&ctrl_info->pci_dev->dev, | |
6796 | "error updating host wellness\n"); | |
6797 | return rc; | |
6798 | } | |
6799 | ||
6800 | pqi_schedule_update_time_worker(ctrl_info); | |
6801 | ||
6802 | pqi_scan_scsi_devices(ctrl_info); | |
6803 | ||
6804 | return 0; | |
6805 | } | |
6806 | ||
061ef06a KB |
6807 | static void pqi_reinit_queues(struct pqi_ctrl_info *ctrl_info) |
6808 | { | |
6809 | unsigned int i; | |
6810 | struct pqi_admin_queues *admin_queues; | |
6811 | struct pqi_event_queue *event_queue; | |
6812 | ||
6813 | admin_queues = &ctrl_info->admin_queues; | |
6814 | admin_queues->iq_pi_copy = 0; | |
6815 | admin_queues->oq_ci_copy = 0; | |
dac12fbc | 6816 | writel(0, admin_queues->oq_pi); |
061ef06a KB |
6817 | |
6818 | for (i = 0; i < ctrl_info->num_queue_groups; i++) { | |
6819 | ctrl_info->queue_groups[i].iq_pi_copy[RAID_PATH] = 0; | |
6820 | ctrl_info->queue_groups[i].iq_pi_copy[AIO_PATH] = 0; | |
6821 | ctrl_info->queue_groups[i].oq_ci_copy = 0; | |
6822 | ||
dac12fbc KB |
6823 | writel(0, ctrl_info->queue_groups[i].iq_ci[RAID_PATH]); |
6824 | writel(0, ctrl_info->queue_groups[i].iq_ci[AIO_PATH]); | |
6825 | writel(0, ctrl_info->queue_groups[i].oq_pi); | |
061ef06a KB |
6826 | } |
6827 | ||
6828 | event_queue = &ctrl_info->event_queue; | |
dac12fbc | 6829 | writel(0, event_queue->oq_pi); |
061ef06a KB |
6830 | event_queue->oq_ci_copy = 0; |
6831 | } | |
6832 | ||
6833 | static int pqi_ctrl_init_resume(struct pqi_ctrl_info *ctrl_info) | |
6834 | { | |
6835 | int rc; | |
6836 | ||
6837 | rc = pqi_force_sis_mode(ctrl_info); | |
6838 | if (rc) | |
6839 | return rc; | |
6840 | ||
6841 | /* | |
6842 | * Wait until the controller is ready to start accepting SIS | |
6843 | * commands. | |
6844 | */ | |
6845 | rc = sis_wait_for_ctrl_ready_resume(ctrl_info); | |
6846 | if (rc) | |
6847 | return rc; | |
6848 | ||
6849 | /* | |
6850 | * If the function we are about to call succeeds, the | |
6851 | * controller will transition from legacy SIS mode | |
6852 | * into PQI mode. | |
6853 | */ | |
6854 | rc = sis_init_base_struct_addr(ctrl_info); | |
6855 | if (rc) { | |
6856 | dev_err(&ctrl_info->pci_dev->dev, | |
6857 | "error initializing PQI mode\n"); | |
6858 | return rc; | |
6859 | } | |
6860 | ||
6861 | /* Wait for the controller to complete the SIS -> PQI transition. */ | |
6862 | rc = pqi_wait_for_pqi_mode_ready(ctrl_info); | |
6863 | if (rc) { | |
6864 | dev_err(&ctrl_info->pci_dev->dev, | |
6865 | "transition to PQI mode failed\n"); | |
6866 | return rc; | |
6867 | } | |
6868 | ||
6869 | /* From here on, we are running in PQI mode. */ | |
6870 | ctrl_info->pqi_mode_enabled = true; | |
6871 | pqi_save_ctrl_mode(ctrl_info, PQI_MODE); | |
6872 | ||
6873 | pqi_reinit_queues(ctrl_info); | |
6874 | ||
6875 | rc = pqi_create_admin_queues(ctrl_info); | |
6876 | if (rc) { | |
6877 | dev_err(&ctrl_info->pci_dev->dev, | |
6878 | "error creating admin queues\n"); | |
6879 | return rc; | |
6880 | } | |
6881 | ||
6882 | rc = pqi_create_queues(ctrl_info); | |
6883 | if (rc) | |
6884 | return rc; | |
6885 | ||
6886 | pqi_change_irq_mode(ctrl_info, IRQ_MODE_MSIX); | |
6887 | ||
6888 | ctrl_info->controller_online = true; | |
6889 | pqi_start_heartbeat_timer(ctrl_info); | |
6890 | pqi_ctrl_unblock_requests(ctrl_info); | |
6891 | ||
6892 | rc = pqi_enable_events(ctrl_info); | |
6893 | if (rc) { | |
6894 | dev_err(&ctrl_info->pci_dev->dev, | |
d87d5474 | 6895 | "error enabling events\n"); |
061ef06a KB |
6896 | return rc; |
6897 | } | |
6898 | ||
171c2865 DC |
6899 | rc = pqi_set_diag_rescan(ctrl_info); |
6900 | if (rc) { | |
6901 | dev_err(&ctrl_info->pci_dev->dev, | |
6902 | "error enabling multi-lun rescan\n"); | |
6903 | return rc; | |
6904 | } | |
6905 | ||
061ef06a KB |
6906 | rc = pqi_write_driver_version_to_host_wellness(ctrl_info); |
6907 | if (rc) { | |
6908 | dev_err(&ctrl_info->pci_dev->dev, | |
6909 | "error updating host wellness\n"); | |
6910 | return rc; | |
6911 | } | |
6912 | ||
6913 | pqi_schedule_update_time_worker(ctrl_info); | |
6914 | ||
6915 | pqi_scan_scsi_devices(ctrl_info); | |
6916 | ||
6917 | return 0; | |
6918 | } | |
6919 | ||
a81ed5f3 KB |
6920 | static inline int pqi_set_pcie_completion_timeout(struct pci_dev *pci_dev, |
6921 | u16 timeout) | |
6922 | { | |
6923 | return pcie_capability_clear_and_set_word(pci_dev, PCI_EXP_DEVCTL2, | |
6924 | PCI_EXP_DEVCTL2_COMP_TIMEOUT, timeout); | |
6925 | } | |
6926 | ||
6c223761 KB |
6927 | static int pqi_pci_init(struct pqi_ctrl_info *ctrl_info) |
6928 | { | |
6929 | int rc; | |
6930 | u64 mask; | |
6931 | ||
6932 | rc = pci_enable_device(ctrl_info->pci_dev); | |
6933 | if (rc) { | |
6934 | dev_err(&ctrl_info->pci_dev->dev, | |
6935 | "failed to enable PCI device\n"); | |
6936 | return rc; | |
6937 | } | |
6938 | ||
6939 | if (sizeof(dma_addr_t) > 4) | |
6940 | mask = DMA_BIT_MASK(64); | |
6941 | else | |
6942 | mask = DMA_BIT_MASK(32); | |
6943 | ||
6944 | rc = dma_set_mask(&ctrl_info->pci_dev->dev, mask); | |
6945 | if (rc) { | |
6946 | dev_err(&ctrl_info->pci_dev->dev, "failed to set DMA mask\n"); | |
6947 | goto disable_device; | |
6948 | } | |
6949 | ||
6950 | rc = pci_request_regions(ctrl_info->pci_dev, DRIVER_NAME_SHORT); | |
6951 | if (rc) { | |
6952 | dev_err(&ctrl_info->pci_dev->dev, | |
6953 | "failed to obtain PCI resources\n"); | |
6954 | goto disable_device; | |
6955 | } | |
6956 | ||
6957 | ctrl_info->iomem_base = ioremap_nocache(pci_resource_start( | |
6958 | ctrl_info->pci_dev, 0), | |
6959 | sizeof(struct pqi_ctrl_registers)); | |
6960 | if (!ctrl_info->iomem_base) { | |
6961 | dev_err(&ctrl_info->pci_dev->dev, | |
6962 | "failed to map memory for controller registers\n"); | |
6963 | rc = -ENOMEM; | |
6964 | goto release_regions; | |
6965 | } | |
6966 | ||
a81ed5f3 KB |
6967 | #define PCI_EXP_COMP_TIMEOUT_65_TO_210_MS 0x6 |
6968 | ||
6969 | /* Increase the PCIe completion timeout. */ | |
6970 | rc = pqi_set_pcie_completion_timeout(ctrl_info->pci_dev, | |
6971 | PCI_EXP_COMP_TIMEOUT_65_TO_210_MS); | |
6972 | if (rc) { | |
6973 | dev_err(&ctrl_info->pci_dev->dev, | |
6974 | "failed to set PCIe completion timeout\n"); | |
6975 | goto release_regions; | |
6976 | } | |
6977 | ||
6c223761 KB |
6978 | /* Enable bus mastering. */ |
6979 | pci_set_master(ctrl_info->pci_dev); | |
6980 | ||
cbe0c7b1 KB |
6981 | ctrl_info->registers = ctrl_info->iomem_base; |
6982 | ctrl_info->pqi_registers = &ctrl_info->registers->pqi_registers; | |
6983 | ||
6c223761 KB |
6984 | pci_set_drvdata(ctrl_info->pci_dev, ctrl_info); |
6985 | ||
6986 | return 0; | |
6987 | ||
6988 | release_regions: | |
6989 | pci_release_regions(ctrl_info->pci_dev); | |
6990 | disable_device: | |
6991 | pci_disable_device(ctrl_info->pci_dev); | |
6992 | ||
6993 | return rc; | |
6994 | } | |
6995 | ||
6996 | static void pqi_cleanup_pci_init(struct pqi_ctrl_info *ctrl_info) | |
6997 | { | |
6998 | iounmap(ctrl_info->iomem_base); | |
6999 | pci_release_regions(ctrl_info->pci_dev); | |
cbe0c7b1 KB |
7000 | if (pci_is_enabled(ctrl_info->pci_dev)) |
7001 | pci_disable_device(ctrl_info->pci_dev); | |
6c223761 KB |
7002 | pci_set_drvdata(ctrl_info->pci_dev, NULL); |
7003 | } | |
7004 | ||
7005 | static struct pqi_ctrl_info *pqi_alloc_ctrl_info(int numa_node) | |
7006 | { | |
7007 | struct pqi_ctrl_info *ctrl_info; | |
7008 | ||
7009 | ctrl_info = kzalloc_node(sizeof(struct pqi_ctrl_info), | |
7010 | GFP_KERNEL, numa_node); | |
7011 | if (!ctrl_info) | |
7012 | return NULL; | |
7013 | ||
7014 | mutex_init(&ctrl_info->scan_mutex); | |
7561a7e4 | 7015 | mutex_init(&ctrl_info->lun_reset_mutex); |
6c223761 KB |
7016 | |
7017 | INIT_LIST_HEAD(&ctrl_info->scsi_device_list); | |
7018 | spin_lock_init(&ctrl_info->scsi_device_list_lock); | |
7019 | ||
7020 | INIT_WORK(&ctrl_info->event_work, pqi_event_worker); | |
7021 | atomic_set(&ctrl_info->num_interrupts, 0); | |
7022 | ||
7023 | INIT_DELAYED_WORK(&ctrl_info->rescan_work, pqi_rescan_worker); | |
7024 | INIT_DELAYED_WORK(&ctrl_info->update_time_work, pqi_update_time_worker); | |
7025 | ||
74a0f573 | 7026 | timer_setup(&ctrl_info->heartbeat_timer, pqi_heartbeat_timer_handler, 0); |
5f310425 | 7027 | INIT_WORK(&ctrl_info->ctrl_offline_work, pqi_ctrl_offline_worker); |
98f87667 | 7028 | |
6c223761 KB |
7029 | sema_init(&ctrl_info->sync_request_sem, |
7030 | PQI_RESERVED_IO_SLOTS_SYNCHRONOUS_REQUESTS); | |
7561a7e4 | 7031 | init_waitqueue_head(&ctrl_info->block_requests_wait); |
6c223761 | 7032 | |
376fb880 KB |
7033 | INIT_LIST_HEAD(&ctrl_info->raid_bypass_retry_list); |
7034 | spin_lock_init(&ctrl_info->raid_bypass_retry_list_lock); | |
7035 | INIT_WORK(&ctrl_info->raid_bypass_retry_work, | |
7036 | pqi_raid_bypass_retry_worker); | |
7037 | ||
6c223761 | 7038 | ctrl_info->ctrl_id = atomic_inc_return(&pqi_controller_count) - 1; |
061ef06a | 7039 | ctrl_info->irq_mode = IRQ_MODE_NONE; |
6c223761 KB |
7040 | ctrl_info->max_msix_vectors = PQI_MAX_MSIX_VECTORS; |
7041 | ||
7042 | return ctrl_info; | |
7043 | } | |
7044 | ||
7045 | static inline void pqi_free_ctrl_info(struct pqi_ctrl_info *ctrl_info) | |
7046 | { | |
7047 | kfree(ctrl_info); | |
7048 | } | |
7049 | ||
7050 | static void pqi_free_interrupts(struct pqi_ctrl_info *ctrl_info) | |
7051 | { | |
98bf061b KB |
7052 | pqi_free_irqs(ctrl_info); |
7053 | pqi_disable_msix_interrupts(ctrl_info); | |
6c223761 KB |
7054 | } |
7055 | ||
7056 | static void pqi_free_ctrl_resources(struct pqi_ctrl_info *ctrl_info) | |
7057 | { | |
7058 | pqi_stop_heartbeat_timer(ctrl_info); | |
7059 | pqi_free_interrupts(ctrl_info); | |
7060 | if (ctrl_info->queue_memory_base) | |
7061 | dma_free_coherent(&ctrl_info->pci_dev->dev, | |
7062 | ctrl_info->queue_memory_length, | |
7063 | ctrl_info->queue_memory_base, | |
7064 | ctrl_info->queue_memory_base_dma_handle); | |
7065 | if (ctrl_info->admin_queue_memory_base) | |
7066 | dma_free_coherent(&ctrl_info->pci_dev->dev, | |
7067 | ctrl_info->admin_queue_memory_length, | |
7068 | ctrl_info->admin_queue_memory_base, | |
7069 | ctrl_info->admin_queue_memory_base_dma_handle); | |
7070 | pqi_free_all_io_requests(ctrl_info); | |
7071 | if (ctrl_info->error_buffer) | |
7072 | dma_free_coherent(&ctrl_info->pci_dev->dev, | |
7073 | ctrl_info->error_buffer_length, | |
7074 | ctrl_info->error_buffer, | |
7075 | ctrl_info->error_buffer_dma_handle); | |
7076 | if (ctrl_info->iomem_base) | |
7077 | pqi_cleanup_pci_init(ctrl_info); | |
7078 | pqi_free_ctrl_info(ctrl_info); | |
7079 | } | |
7080 | ||
7081 | static void pqi_remove_ctrl(struct pqi_ctrl_info *ctrl_info) | |
7082 | { | |
061ef06a KB |
7083 | pqi_cancel_rescan_worker(ctrl_info); |
7084 | pqi_cancel_update_time_worker(ctrl_info); | |
e57a1f9b KB |
7085 | pqi_remove_all_scsi_devices(ctrl_info); |
7086 | pqi_unregister_scsi(ctrl_info); | |
162d7753 KB |
7087 | if (ctrl_info->pqi_mode_enabled) |
7088 | pqi_revert_to_sis_mode(ctrl_info); | |
6c223761 KB |
7089 | pqi_free_ctrl_resources(ctrl_info); |
7090 | } | |
7091 | ||
3c50976f KB |
7092 | static void pqi_perform_lockup_action(void) |
7093 | { | |
7094 | switch (pqi_lockup_action) { | |
7095 | case PANIC: | |
7096 | panic("FATAL: Smart Family Controller lockup detected"); | |
7097 | break; | |
7098 | case REBOOT: | |
7099 | emergency_restart(); | |
7100 | break; | |
7101 | case NONE: | |
7102 | default: | |
7103 | break; | |
7104 | } | |
7105 | } | |
7106 | ||
5f310425 KB |
7107 | static struct pqi_raid_error_info pqi_ctrl_offline_raid_error_info = { |
7108 | .data_out_result = PQI_DATA_IN_OUT_HARDWARE_ERROR, | |
7109 | .status = SAM_STAT_CHECK_CONDITION, | |
7110 | }; | |
7111 | ||
7112 | static void pqi_fail_all_outstanding_requests(struct pqi_ctrl_info *ctrl_info) | |
376fb880 KB |
7113 | { |
7114 | unsigned int i; | |
376fb880 | 7115 | struct pqi_io_request *io_request; |
376fb880 KB |
7116 | struct scsi_cmnd *scmd; |
7117 | ||
5f310425 KB |
7118 | for (i = 0; i < ctrl_info->max_io_slots; i++) { |
7119 | io_request = &ctrl_info->io_request_pool[i]; | |
7120 | if (atomic_read(&io_request->refcount) == 0) | |
7121 | continue; | |
376fb880 | 7122 | |
5f310425 KB |
7123 | scmd = io_request->scmd; |
7124 | if (scmd) { | |
7125 | set_host_byte(scmd, DID_NO_CONNECT); | |
7126 | } else { | |
7127 | io_request->status = -ENXIO; | |
7128 | io_request->error_info = | |
7129 | &pqi_ctrl_offline_raid_error_info; | |
376fb880 | 7130 | } |
5f310425 KB |
7131 | |
7132 | io_request->io_complete_callback(io_request, | |
7133 | io_request->context); | |
376fb880 KB |
7134 | } |
7135 | } | |
7136 | ||
5f310425 | 7137 | static void pqi_take_ctrl_offline_deferred(struct pqi_ctrl_info *ctrl_info) |
376fb880 | 7138 | { |
5f310425 KB |
7139 | pqi_perform_lockup_action(); |
7140 | pqi_stop_heartbeat_timer(ctrl_info); | |
7141 | pqi_free_interrupts(ctrl_info); | |
7142 | pqi_cancel_rescan_worker(ctrl_info); | |
7143 | pqi_cancel_update_time_worker(ctrl_info); | |
7144 | pqi_ctrl_wait_until_quiesced(ctrl_info); | |
7145 | pqi_fail_all_outstanding_requests(ctrl_info); | |
7146 | pqi_clear_all_queued_raid_bypass_retries(ctrl_info); | |
7147 | pqi_ctrl_unblock_requests(ctrl_info); | |
7148 | } | |
7149 | ||
7150 | static void pqi_ctrl_offline_worker(struct work_struct *work) | |
7151 | { | |
7152 | struct pqi_ctrl_info *ctrl_info; | |
7153 | ||
7154 | ctrl_info = container_of(work, struct pqi_ctrl_info, ctrl_offline_work); | |
7155 | pqi_take_ctrl_offline_deferred(ctrl_info); | |
376fb880 KB |
7156 | } |
7157 | ||
7158 | static void pqi_take_ctrl_offline(struct pqi_ctrl_info *ctrl_info) | |
7159 | { | |
5f310425 KB |
7160 | if (!ctrl_info->controller_online) |
7161 | return; | |
7162 | ||
376fb880 | 7163 | ctrl_info->controller_online = false; |
5f310425 KB |
7164 | ctrl_info->pqi_mode_enabled = false; |
7165 | pqi_ctrl_block_requests(ctrl_info); | |
5a259e32 KB |
7166 | if (!pqi_disable_ctrl_shutdown) |
7167 | sis_shutdown_ctrl(ctrl_info); | |
376fb880 KB |
7168 | pci_disable_device(ctrl_info->pci_dev); |
7169 | dev_err(&ctrl_info->pci_dev->dev, "controller offline\n"); | |
5f310425 | 7170 | schedule_work(&ctrl_info->ctrl_offline_work); |
376fb880 KB |
7171 | } |
7172 | ||
d91d7820 | 7173 | static void pqi_print_ctrl_info(struct pci_dev *pci_dev, |
6c223761 KB |
7174 | const struct pci_device_id *id) |
7175 | { | |
7176 | char *ctrl_description; | |
7177 | ||
37b36847 | 7178 | if (id->driver_data) |
6c223761 | 7179 | ctrl_description = (char *)id->driver_data; |
37b36847 KB |
7180 | else |
7181 | ctrl_description = "Microsemi Smart Family Controller"; | |
6c223761 | 7182 | |
d91d7820 | 7183 | dev_info(&pci_dev->dev, "%s found\n", ctrl_description); |
6c223761 KB |
7184 | } |
7185 | ||
d91d7820 KB |
7186 | static int pqi_pci_probe(struct pci_dev *pci_dev, |
7187 | const struct pci_device_id *id) | |
6c223761 KB |
7188 | { |
7189 | int rc; | |
62dc51fb | 7190 | int node, cp_node; |
6c223761 KB |
7191 | struct pqi_ctrl_info *ctrl_info; |
7192 | ||
d91d7820 | 7193 | pqi_print_ctrl_info(pci_dev, id); |
6c223761 KB |
7194 | |
7195 | if (pqi_disable_device_id_wildcards && | |
7196 | id->subvendor == PCI_ANY_ID && | |
7197 | id->subdevice == PCI_ANY_ID) { | |
d91d7820 | 7198 | dev_warn(&pci_dev->dev, |
6c223761 KB |
7199 | "controller not probed because device ID wildcards are disabled\n"); |
7200 | return -ENODEV; | |
7201 | } | |
7202 | ||
7203 | if (id->subvendor == PCI_ANY_ID || id->subdevice == PCI_ANY_ID) | |
d91d7820 | 7204 | dev_warn(&pci_dev->dev, |
6c223761 KB |
7205 | "controller device ID matched using wildcards\n"); |
7206 | ||
d91d7820 | 7207 | node = dev_to_node(&pci_dev->dev); |
62dc51fb SB |
7208 | if (node == NUMA_NO_NODE) { |
7209 | cp_node = cpu_to_node(0); | |
7210 | if (cp_node == NUMA_NO_NODE) | |
7211 | cp_node = 0; | |
7212 | set_dev_node(&pci_dev->dev, cp_node); | |
7213 | } | |
6c223761 KB |
7214 | |
7215 | ctrl_info = pqi_alloc_ctrl_info(node); | |
7216 | if (!ctrl_info) { | |
d91d7820 | 7217 | dev_err(&pci_dev->dev, |
6c223761 KB |
7218 | "failed to allocate controller info block\n"); |
7219 | return -ENOMEM; | |
7220 | } | |
7221 | ||
d91d7820 | 7222 | ctrl_info->pci_dev = pci_dev; |
6c223761 KB |
7223 | |
7224 | rc = pqi_pci_init(ctrl_info); | |
7225 | if (rc) | |
7226 | goto error; | |
7227 | ||
7228 | rc = pqi_ctrl_init(ctrl_info); | |
7229 | if (rc) | |
7230 | goto error; | |
7231 | ||
7232 | return 0; | |
7233 | ||
7234 | error: | |
7235 | pqi_remove_ctrl(ctrl_info); | |
7236 | ||
7237 | return rc; | |
7238 | } | |
7239 | ||
d91d7820 | 7240 | static void pqi_pci_remove(struct pci_dev *pci_dev) |
6c223761 KB |
7241 | { |
7242 | struct pqi_ctrl_info *ctrl_info; | |
7243 | ||
d91d7820 | 7244 | ctrl_info = pci_get_drvdata(pci_dev); |
6c223761 KB |
7245 | if (!ctrl_info) |
7246 | return; | |
7247 | ||
1e46731e MR |
7248 | ctrl_info->in_shutdown = true; |
7249 | ||
6c223761 KB |
7250 | pqi_remove_ctrl(ctrl_info); |
7251 | } | |
7252 | ||
d91d7820 | 7253 | static void pqi_shutdown(struct pci_dev *pci_dev) |
6c223761 KB |
7254 | { |
7255 | int rc; | |
7256 | struct pqi_ctrl_info *ctrl_info; | |
7257 | ||
d91d7820 | 7258 | ctrl_info = pci_get_drvdata(pci_dev); |
6c223761 KB |
7259 | if (!ctrl_info) |
7260 | goto error; | |
7261 | ||
7262 | /* | |
7263 | * Write all data in the controller's battery-backed cache to | |
7264 | * storage. | |
7265 | */ | |
58322fe0 | 7266 | rc = pqi_flush_cache(ctrl_info, SHUTDOWN); |
b6d47811 | 7267 | pqi_reset(ctrl_info); |
6c223761 KB |
7268 | if (rc == 0) |
7269 | return; | |
7270 | ||
7271 | error: | |
d91d7820 | 7272 | dev_warn(&pci_dev->dev, |
6c223761 KB |
7273 | "unable to flush controller cache\n"); |
7274 | } | |
7275 | ||
3c50976f KB |
7276 | static void pqi_process_lockup_action_param(void) |
7277 | { | |
7278 | unsigned int i; | |
7279 | ||
7280 | if (!pqi_lockup_action_param) | |
7281 | return; | |
7282 | ||
7283 | for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) { | |
7284 | if (strcmp(pqi_lockup_action_param, | |
7285 | pqi_lockup_actions[i].name) == 0) { | |
7286 | pqi_lockup_action = pqi_lockup_actions[i].action; | |
7287 | return; | |
7288 | } | |
7289 | } | |
7290 | ||
7291 | pr_warn("%s: invalid lockup action setting \"%s\" - supported settings: none, reboot, panic\n", | |
7292 | DRIVER_NAME_SHORT, pqi_lockup_action_param); | |
7293 | } | |
7294 | ||
7295 | static void pqi_process_module_params(void) | |
7296 | { | |
7297 | pqi_process_lockup_action_param(); | |
7298 | } | |
7299 | ||
5c146686 | 7300 | static __maybe_unused int pqi_suspend(struct pci_dev *pci_dev, pm_message_t state) |
061ef06a KB |
7301 | { |
7302 | struct pqi_ctrl_info *ctrl_info; | |
7303 | ||
7304 | ctrl_info = pci_get_drvdata(pci_dev); | |
7305 | ||
7306 | pqi_disable_events(ctrl_info); | |
7307 | pqi_cancel_update_time_worker(ctrl_info); | |
7308 | pqi_cancel_rescan_worker(ctrl_info); | |
7309 | pqi_wait_until_scan_finished(ctrl_info); | |
7310 | pqi_wait_until_lun_reset_finished(ctrl_info); | |
58322fe0 | 7311 | pqi_flush_cache(ctrl_info, SUSPEND); |
061ef06a KB |
7312 | pqi_ctrl_block_requests(ctrl_info); |
7313 | pqi_ctrl_wait_until_quiesced(ctrl_info); | |
7314 | pqi_wait_until_inbound_queues_empty(ctrl_info); | |
7315 | pqi_ctrl_wait_for_pending_io(ctrl_info); | |
7316 | pqi_stop_heartbeat_timer(ctrl_info); | |
7317 | ||
7318 | if (state.event == PM_EVENT_FREEZE) | |
7319 | return 0; | |
7320 | ||
7321 | pci_save_state(pci_dev); | |
7322 | pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state)); | |
7323 | ||
7324 | ctrl_info->controller_online = false; | |
7325 | ctrl_info->pqi_mode_enabled = false; | |
7326 | ||
7327 | return 0; | |
7328 | } | |
7329 | ||
5c146686 | 7330 | static __maybe_unused int pqi_resume(struct pci_dev *pci_dev) |
061ef06a KB |
7331 | { |
7332 | int rc; | |
7333 | struct pqi_ctrl_info *ctrl_info; | |
7334 | ||
7335 | ctrl_info = pci_get_drvdata(pci_dev); | |
7336 | ||
7337 | if (pci_dev->current_state != PCI_D0) { | |
7338 | ctrl_info->max_hw_queue_index = 0; | |
7339 | pqi_free_interrupts(ctrl_info); | |
7340 | pqi_change_irq_mode(ctrl_info, IRQ_MODE_INTX); | |
7341 | rc = request_irq(pci_irq_vector(pci_dev, 0), pqi_irq_handler, | |
7342 | IRQF_SHARED, DRIVER_NAME_SHORT, | |
7343 | &ctrl_info->queue_groups[0]); | |
7344 | if (rc) { | |
7345 | dev_err(&ctrl_info->pci_dev->dev, | |
7346 | "irq %u init failed with error %d\n", | |
7347 | pci_dev->irq, rc); | |
7348 | return rc; | |
7349 | } | |
7350 | pqi_start_heartbeat_timer(ctrl_info); | |
7351 | pqi_ctrl_unblock_requests(ctrl_info); | |
7352 | return 0; | |
7353 | } | |
7354 | ||
7355 | pci_set_power_state(pci_dev, PCI_D0); | |
7356 | pci_restore_state(pci_dev); | |
7357 | ||
7358 | return pqi_ctrl_init_resume(ctrl_info); | |
7359 | } | |
7360 | ||
6c223761 KB |
7361 | /* Define the PCI IDs for the controllers that we support. */ |
7362 | static const struct pci_device_id pqi_pci_id_table[] = { | |
b0f9408b KB |
7363 | { |
7364 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7365 | 0x105b, 0x1211) | |
7366 | }, | |
7367 | { | |
7368 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7369 | 0x105b, 0x1321) | |
7370 | }, | |
7eddabff KB |
7371 | { |
7372 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7373 | 0x152d, 0x8a22) | |
7374 | }, | |
7375 | { | |
7376 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7377 | 0x152d, 0x8a23) | |
7378 | }, | |
7379 | { | |
7380 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7381 | 0x152d, 0x8a24) | |
7382 | }, | |
7383 | { | |
7384 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7385 | 0x152d, 0x8a36) | |
7386 | }, | |
7387 | { | |
7388 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7389 | 0x152d, 0x8a37) | |
7390 | }, | |
b0f9408b KB |
7391 | { |
7392 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7393 | 0x193d, 0x8460) | |
7394 | }, | |
7395 | { | |
7396 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7397 | 0x193d, 0x8461) | |
7398 | }, | |
84a77fef MB |
7399 | { |
7400 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7401 | 0x193d, 0xc460) | |
7402 | }, | |
7403 | { | |
7404 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7405 | 0x193d, 0xc461) | |
7406 | }, | |
b0f9408b KB |
7407 | { |
7408 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7409 | 0x193d, 0xf460) | |
7410 | }, | |
7411 | { | |
7412 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7413 | 0x193d, 0xf461) | |
7414 | }, | |
7415 | { | |
7416 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7417 | 0x1bd4, 0x0045) | |
7418 | }, | |
7419 | { | |
7420 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7421 | 0x1bd4, 0x0046) | |
7422 | }, | |
7423 | { | |
7424 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7425 | 0x1bd4, 0x0047) | |
7426 | }, | |
7427 | { | |
7428 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7429 | 0x1bd4, 0x0048) | |
7430 | }, | |
9f8d05fa KB |
7431 | { |
7432 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7433 | 0x1bd4, 0x004a) | |
7434 | }, | |
7435 | { | |
7436 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7437 | 0x1bd4, 0x004b) | |
7438 | }, | |
7439 | { | |
7440 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7441 | 0x1bd4, 0x004c) | |
7442 | }, | |
c1b10475 AK |
7443 | { |
7444 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7445 | 0x19e5, 0xd227) | |
7446 | }, | |
7447 | { | |
7448 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7449 | 0x19e5, 0xd228) | |
7450 | }, | |
7451 | { | |
7452 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7453 | 0x19e5, 0xd229) | |
7454 | }, | |
7455 | { | |
7456 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7457 | 0x19e5, 0xd22a) | |
7458 | }, | |
7459 | { | |
7460 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7461 | 0x19e5, 0xd22b) | |
7462 | }, | |
7463 | { | |
7464 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7465 | 0x19e5, 0xd22c) | |
7466 | }, | |
6c223761 KB |
7467 | { |
7468 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7469 | PCI_VENDOR_ID_ADAPTEC2, 0x0110) | |
7470 | }, | |
7471 | { | |
7472 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
55790064 | 7473 | PCI_VENDOR_ID_ADAPTEC2, 0x0608) |
6c223761 KB |
7474 | }, |
7475 | { | |
7476 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 7477 | PCI_VENDOR_ID_ADAPTEC2, 0x0800) |
6c223761 KB |
7478 | }, |
7479 | { | |
7480 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 7481 | PCI_VENDOR_ID_ADAPTEC2, 0x0801) |
6c223761 KB |
7482 | }, |
7483 | { | |
7484 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 7485 | PCI_VENDOR_ID_ADAPTEC2, 0x0802) |
6c223761 KB |
7486 | }, |
7487 | { | |
7488 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 7489 | PCI_VENDOR_ID_ADAPTEC2, 0x0803) |
6c223761 KB |
7490 | }, |
7491 | { | |
7492 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 7493 | PCI_VENDOR_ID_ADAPTEC2, 0x0804) |
6c223761 KB |
7494 | }, |
7495 | { | |
7496 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 7497 | PCI_VENDOR_ID_ADAPTEC2, 0x0805) |
6c223761 KB |
7498 | }, |
7499 | { | |
7500 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 7501 | PCI_VENDOR_ID_ADAPTEC2, 0x0806) |
6c223761 | 7502 | }, |
55790064 KB |
7503 | { |
7504 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7505 | PCI_VENDOR_ID_ADAPTEC2, 0x0807) | |
7506 | }, | |
6c223761 KB |
7507 | { |
7508 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 7509 | PCI_VENDOR_ID_ADAPTEC2, 0x0900) |
6c223761 KB |
7510 | }, |
7511 | { | |
7512 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 7513 | PCI_VENDOR_ID_ADAPTEC2, 0x0901) |
6c223761 KB |
7514 | }, |
7515 | { | |
7516 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 7517 | PCI_VENDOR_ID_ADAPTEC2, 0x0902) |
6c223761 KB |
7518 | }, |
7519 | { | |
7520 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 7521 | PCI_VENDOR_ID_ADAPTEC2, 0x0903) |
6c223761 KB |
7522 | }, |
7523 | { | |
7524 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 7525 | PCI_VENDOR_ID_ADAPTEC2, 0x0904) |
6c223761 KB |
7526 | }, |
7527 | { | |
7528 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 7529 | PCI_VENDOR_ID_ADAPTEC2, 0x0905) |
6c223761 KB |
7530 | }, |
7531 | { | |
7532 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 7533 | PCI_VENDOR_ID_ADAPTEC2, 0x0906) |
6c223761 KB |
7534 | }, |
7535 | { | |
7536 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 7537 | PCI_VENDOR_ID_ADAPTEC2, 0x0907) |
6c223761 KB |
7538 | }, |
7539 | { | |
7540 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 7541 | PCI_VENDOR_ID_ADAPTEC2, 0x0908) |
6c223761 | 7542 | }, |
55790064 KB |
7543 | { |
7544 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7545 | PCI_VENDOR_ID_ADAPTEC2, 0x090a) | |
7546 | }, | |
6c223761 KB |
7547 | { |
7548 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 7549 | PCI_VENDOR_ID_ADAPTEC2, 0x1200) |
6c223761 KB |
7550 | }, |
7551 | { | |
7552 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 7553 | PCI_VENDOR_ID_ADAPTEC2, 0x1201) |
6c223761 KB |
7554 | }, |
7555 | { | |
7556 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 7557 | PCI_VENDOR_ID_ADAPTEC2, 0x1202) |
6c223761 KB |
7558 | }, |
7559 | { | |
7560 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 7561 | PCI_VENDOR_ID_ADAPTEC2, 0x1280) |
6c223761 KB |
7562 | }, |
7563 | { | |
7564 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 7565 | PCI_VENDOR_ID_ADAPTEC2, 0x1281) |
6c223761 | 7566 | }, |
b0f9408b KB |
7567 | { |
7568 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7569 | PCI_VENDOR_ID_ADAPTEC2, 0x1282) | |
7570 | }, | |
6c223761 KB |
7571 | { |
7572 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 7573 | PCI_VENDOR_ID_ADAPTEC2, 0x1300) |
6c223761 KB |
7574 | }, |
7575 | { | |
7576 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff | 7577 | PCI_VENDOR_ID_ADAPTEC2, 0x1301) |
6c223761 | 7578 | }, |
bd809e8d KB |
7579 | { |
7580 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7581 | PCI_VENDOR_ID_ADAPTEC2, 0x1302) | |
7582 | }, | |
7583 | { | |
7584 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7585 | PCI_VENDOR_ID_ADAPTEC2, 0x1303) | |
7586 | }, | |
6c223761 KB |
7587 | { |
7588 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7eddabff KB |
7589 | PCI_VENDOR_ID_ADAPTEC2, 0x1380) |
7590 | }, | |
9f8d05fa KB |
7591 | { |
7592 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7593 | PCI_VENDOR_ID_ADVANTECH, 0x8312) | |
7594 | }, | |
55790064 KB |
7595 | { |
7596 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7597 | PCI_VENDOR_ID_DELL, 0x1fe0) | |
7598 | }, | |
7eddabff KB |
7599 | { |
7600 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7601 | PCI_VENDOR_ID_HP, 0x0600) | |
7602 | }, | |
7603 | { | |
7604 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7605 | PCI_VENDOR_ID_HP, 0x0601) | |
7606 | }, | |
7607 | { | |
7608 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7609 | PCI_VENDOR_ID_HP, 0x0602) | |
7610 | }, | |
7611 | { | |
7612 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7613 | PCI_VENDOR_ID_HP, 0x0603) | |
7614 | }, | |
7615 | { | |
7616 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
55790064 | 7617 | PCI_VENDOR_ID_HP, 0x0609) |
7eddabff KB |
7618 | }, |
7619 | { | |
7620 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7621 | PCI_VENDOR_ID_HP, 0x0650) | |
7622 | }, | |
7623 | { | |
7624 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7625 | PCI_VENDOR_ID_HP, 0x0651) | |
7626 | }, | |
7627 | { | |
7628 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7629 | PCI_VENDOR_ID_HP, 0x0652) | |
7630 | }, | |
7631 | { | |
7632 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7633 | PCI_VENDOR_ID_HP, 0x0653) | |
7634 | }, | |
7635 | { | |
7636 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7637 | PCI_VENDOR_ID_HP, 0x0654) | |
7638 | }, | |
7639 | { | |
7640 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7641 | PCI_VENDOR_ID_HP, 0x0655) | |
7642 | }, | |
7eddabff KB |
7643 | { |
7644 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7645 | PCI_VENDOR_ID_HP, 0x0700) | |
7646 | }, | |
7647 | { | |
7648 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7649 | PCI_VENDOR_ID_HP, 0x0701) | |
6c223761 KB |
7650 | }, |
7651 | { | |
7652 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7653 | PCI_VENDOR_ID_HP, 0x1001) | |
7654 | }, | |
7655 | { | |
7656 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7657 | PCI_VENDOR_ID_HP, 0x1100) | |
7658 | }, | |
7659 | { | |
7660 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7661 | PCI_VENDOR_ID_HP, 0x1101) | |
7662 | }, | |
6c223761 KB |
7663 | { |
7664 | PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, | |
7665 | PCI_ANY_ID, PCI_ANY_ID) | |
7666 | }, | |
7667 | { 0 } | |
7668 | }; | |
7669 | ||
7670 | MODULE_DEVICE_TABLE(pci, pqi_pci_id_table); | |
7671 | ||
7672 | static struct pci_driver pqi_pci_driver = { | |
7673 | .name = DRIVER_NAME_SHORT, | |
7674 | .id_table = pqi_pci_id_table, | |
7675 | .probe = pqi_pci_probe, | |
7676 | .remove = pqi_pci_remove, | |
7677 | .shutdown = pqi_shutdown, | |
061ef06a KB |
7678 | #if defined(CONFIG_PM) |
7679 | .suspend = pqi_suspend, | |
7680 | .resume = pqi_resume, | |
7681 | #endif | |
6c223761 KB |
7682 | }; |
7683 | ||
7684 | static int __init pqi_init(void) | |
7685 | { | |
7686 | int rc; | |
7687 | ||
7688 | pr_info(DRIVER_NAME "\n"); | |
7689 | ||
7690 | pqi_sas_transport_template = | |
7691 | sas_attach_transport(&pqi_sas_transport_functions); | |
7692 | if (!pqi_sas_transport_template) | |
7693 | return -ENODEV; | |
7694 | ||
3c50976f KB |
7695 | pqi_process_module_params(); |
7696 | ||
6c223761 KB |
7697 | rc = pci_register_driver(&pqi_pci_driver); |
7698 | if (rc) | |
7699 | sas_release_transport(pqi_sas_transport_template); | |
7700 | ||
7701 | return rc; | |
7702 | } | |
7703 | ||
7704 | static void __exit pqi_cleanup(void) | |
7705 | { | |
7706 | pci_unregister_driver(&pqi_pci_driver); | |
7707 | sas_release_transport(pqi_sas_transport_template); | |
7708 | } | |
7709 | ||
7710 | module_init(pqi_init); | |
7711 | module_exit(pqi_cleanup); | |
7712 | ||
7713 | static void __attribute__((unused)) verify_structures(void) | |
7714 | { | |
7715 | BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, | |
7716 | sis_host_to_ctrl_doorbell) != 0x20); | |
7717 | BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, | |
7718 | sis_interrupt_mask) != 0x34); | |
7719 | BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, | |
7720 | sis_ctrl_to_host_doorbell) != 0x9c); | |
7721 | BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, | |
7722 | sis_ctrl_to_host_doorbell_clear) != 0xa0); | |
ff6abb73 KB |
7723 | BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, |
7724 | sis_driver_scratch) != 0xb0); | |
6c223761 KB |
7725 | BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, |
7726 | sis_firmware_status) != 0xbc); | |
7727 | BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, | |
7728 | sis_mailbox) != 0x1000); | |
7729 | BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers, | |
7730 | pqi_registers) != 0x4000); | |
7731 | ||
7732 | BUILD_BUG_ON(offsetof(struct pqi_iu_header, | |
7733 | iu_type) != 0x0); | |
7734 | BUILD_BUG_ON(offsetof(struct pqi_iu_header, | |
7735 | iu_length) != 0x2); | |
7736 | BUILD_BUG_ON(offsetof(struct pqi_iu_header, | |
7737 | response_queue_id) != 0x4); | |
7738 | BUILD_BUG_ON(offsetof(struct pqi_iu_header, | |
7739 | work_area) != 0x6); | |
7740 | BUILD_BUG_ON(sizeof(struct pqi_iu_header) != 0x8); | |
7741 | ||
7742 | BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, | |
7743 | status) != 0x0); | |
7744 | BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, | |
7745 | service_response) != 0x1); | |
7746 | BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, | |
7747 | data_present) != 0x2); | |
7748 | BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, | |
7749 | reserved) != 0x3); | |
7750 | BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, | |
7751 | residual_count) != 0x4); | |
7752 | BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, | |
7753 | data_length) != 0x8); | |
7754 | BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, | |
7755 | reserved1) != 0xa); | |
7756 | BUILD_BUG_ON(offsetof(struct pqi_aio_error_info, | |
7757 | data) != 0xc); | |
7758 | BUILD_BUG_ON(sizeof(struct pqi_aio_error_info) != 0x10c); | |
7759 | ||
7760 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
7761 | data_in_result) != 0x0); | |
7762 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
7763 | data_out_result) != 0x1); | |
7764 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
7765 | reserved) != 0x2); | |
7766 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
7767 | status) != 0x5); | |
7768 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
7769 | status_qualifier) != 0x6); | |
7770 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
7771 | sense_data_length) != 0x8); | |
7772 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
7773 | response_data_length) != 0xa); | |
7774 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
7775 | data_in_transferred) != 0xc); | |
7776 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
7777 | data_out_transferred) != 0x10); | |
7778 | BUILD_BUG_ON(offsetof(struct pqi_raid_error_info, | |
7779 | data) != 0x14); | |
7780 | BUILD_BUG_ON(sizeof(struct pqi_raid_error_info) != 0x114); | |
7781 | ||
7782 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7783 | signature) != 0x0); | |
7784 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7785 | function_and_status_code) != 0x8); | |
7786 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7787 | max_admin_iq_elements) != 0x10); | |
7788 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7789 | max_admin_oq_elements) != 0x11); | |
7790 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7791 | admin_iq_element_length) != 0x12); | |
7792 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7793 | admin_oq_element_length) != 0x13); | |
7794 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7795 | max_reset_timeout) != 0x14); | |
7796 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7797 | legacy_intx_status) != 0x18); | |
7798 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7799 | legacy_intx_mask_set) != 0x1c); | |
7800 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7801 | legacy_intx_mask_clear) != 0x20); | |
7802 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7803 | device_status) != 0x40); | |
7804 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7805 | admin_iq_pi_offset) != 0x48); | |
7806 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7807 | admin_oq_ci_offset) != 0x50); | |
7808 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7809 | admin_iq_element_array_addr) != 0x58); | |
7810 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7811 | admin_oq_element_array_addr) != 0x60); | |
7812 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7813 | admin_iq_ci_addr) != 0x68); | |
7814 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7815 | admin_oq_pi_addr) != 0x70); | |
7816 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7817 | admin_iq_num_elements) != 0x78); | |
7818 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7819 | admin_oq_num_elements) != 0x79); | |
7820 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7821 | admin_queue_int_msg_num) != 0x7a); | |
7822 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7823 | device_error) != 0x80); | |
7824 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7825 | error_details) != 0x88); | |
7826 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7827 | device_reset) != 0x90); | |
7828 | BUILD_BUG_ON(offsetof(struct pqi_device_registers, | |
7829 | power_action) != 0x94); | |
7830 | BUILD_BUG_ON(sizeof(struct pqi_device_registers) != 0x100); | |
7831 | ||
7832 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7833 | header.iu_type) != 0); | |
7834 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7835 | header.iu_length) != 2); | |
7836 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7837 | header.work_area) != 6); | |
7838 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7839 | request_id) != 8); | |
7840 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7841 | function_code) != 10); | |
7842 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7843 | data.report_device_capability.buffer_length) != 44); | |
7844 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7845 | data.report_device_capability.sg_descriptor) != 48); | |
7846 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7847 | data.create_operational_iq.queue_id) != 12); | |
7848 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7849 | data.create_operational_iq.element_array_addr) != 16); | |
7850 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7851 | data.create_operational_iq.ci_addr) != 24); | |
7852 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7853 | data.create_operational_iq.num_elements) != 32); | |
7854 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7855 | data.create_operational_iq.element_length) != 34); | |
7856 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7857 | data.create_operational_iq.queue_protocol) != 36); | |
7858 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7859 | data.create_operational_oq.queue_id) != 12); | |
7860 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7861 | data.create_operational_oq.element_array_addr) != 16); | |
7862 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7863 | data.create_operational_oq.pi_addr) != 24); | |
7864 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7865 | data.create_operational_oq.num_elements) != 32); | |
7866 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7867 | data.create_operational_oq.element_length) != 34); | |
7868 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7869 | data.create_operational_oq.queue_protocol) != 36); | |
7870 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7871 | data.create_operational_oq.int_msg_num) != 40); | |
7872 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7873 | data.create_operational_oq.coalescing_count) != 42); | |
7874 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7875 | data.create_operational_oq.min_coalescing_time) != 44); | |
7876 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7877 | data.create_operational_oq.max_coalescing_time) != 48); | |
7878 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_request, | |
7879 | data.delete_operational_queue.queue_id) != 12); | |
7880 | BUILD_BUG_ON(sizeof(struct pqi_general_admin_request) != 64); | |
7881 | BUILD_BUG_ON(FIELD_SIZEOF(struct pqi_general_admin_request, | |
7882 | data.create_operational_iq) != 64 - 11); | |
7883 | BUILD_BUG_ON(FIELD_SIZEOF(struct pqi_general_admin_request, | |
7884 | data.create_operational_oq) != 64 - 11); | |
7885 | BUILD_BUG_ON(FIELD_SIZEOF(struct pqi_general_admin_request, | |
7886 | data.delete_operational_queue) != 64 - 11); | |
7887 | ||
7888 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
7889 | header.iu_type) != 0); | |
7890 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
7891 | header.iu_length) != 2); | |
7892 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
7893 | header.work_area) != 6); | |
7894 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
7895 | request_id) != 8); | |
7896 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
7897 | function_code) != 10); | |
7898 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
7899 | status) != 11); | |
7900 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
7901 | data.create_operational_iq.status_descriptor) != 12); | |
7902 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
7903 | data.create_operational_iq.iq_pi_offset) != 16); | |
7904 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
7905 | data.create_operational_oq.status_descriptor) != 12); | |
7906 | BUILD_BUG_ON(offsetof(struct pqi_general_admin_response, | |
7907 | data.create_operational_oq.oq_ci_offset) != 16); | |
7908 | BUILD_BUG_ON(sizeof(struct pqi_general_admin_response) != 64); | |
7909 | ||
7910 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
7911 | header.iu_type) != 0); | |
7912 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
7913 | header.iu_length) != 2); | |
7914 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
7915 | header.response_queue_id) != 4); | |
7916 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
7917 | header.work_area) != 6); | |
7918 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
7919 | request_id) != 8); | |
7920 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
7921 | nexus_id) != 10); | |
7922 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
7923 | buffer_length) != 12); | |
7924 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
7925 | lun_number) != 16); | |
7926 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
7927 | protocol_specific) != 24); | |
7928 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
7929 | error_index) != 27); | |
7930 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
7931 | cdb) != 32); | |
7932 | BUILD_BUG_ON(offsetof(struct pqi_raid_path_request, | |
7933 | sg_descriptors) != 64); | |
7934 | BUILD_BUG_ON(sizeof(struct pqi_raid_path_request) != | |
7935 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); | |
7936 | ||
7937 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7938 | header.iu_type) != 0); | |
7939 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7940 | header.iu_length) != 2); | |
7941 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7942 | header.response_queue_id) != 4); | |
7943 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7944 | header.work_area) != 6); | |
7945 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7946 | request_id) != 8); | |
7947 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7948 | nexus_id) != 12); | |
7949 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7950 | buffer_length) != 16); | |
7951 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7952 | data_encryption_key_index) != 22); | |
7953 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7954 | encrypt_tweak_lower) != 24); | |
7955 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7956 | encrypt_tweak_upper) != 28); | |
7957 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7958 | cdb) != 32); | |
7959 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7960 | error_index) != 48); | |
7961 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7962 | num_sg_descriptors) != 50); | |
7963 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7964 | cdb_length) != 51); | |
7965 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7966 | lun_number) != 52); | |
7967 | BUILD_BUG_ON(offsetof(struct pqi_aio_path_request, | |
7968 | sg_descriptors) != 64); | |
7969 | BUILD_BUG_ON(sizeof(struct pqi_aio_path_request) != | |
7970 | PQI_OPERATIONAL_IQ_ELEMENT_LENGTH); | |
7971 | ||
7972 | BUILD_BUG_ON(offsetof(struct pqi_io_response, | |
7973 | header.iu_type) != 0); | |
7974 | BUILD_BUG_ON(offsetof(struct pqi_io_response, | |
7975 | header.iu_length) != 2); | |
7976 | BUILD_BUG_ON(offsetof(struct pqi_io_response, | |
7977 | request_id) != 8); | |
7978 | BUILD_BUG_ON(offsetof(struct pqi_io_response, | |
7979 | error_index) != 10); | |
7980 | ||
7981 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
7982 | header.iu_type) != 0); | |
7983 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
7984 | header.iu_length) != 2); | |
7985 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
7986 | header.response_queue_id) != 4); | |
7987 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
7988 | request_id) != 8); | |
7989 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
7990 | data.report_event_configuration.buffer_length) != 12); | |
7991 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
7992 | data.report_event_configuration.sg_descriptors) != 16); | |
7993 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
7994 | data.set_event_configuration.global_event_oq_id) != 10); | |
7995 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
7996 | data.set_event_configuration.buffer_length) != 12); | |
7997 | BUILD_BUG_ON(offsetof(struct pqi_general_management_request, | |
7998 | data.set_event_configuration.sg_descriptors) != 16); | |
7999 | ||
8000 | BUILD_BUG_ON(offsetof(struct pqi_iu_layer_descriptor, | |
8001 | max_inbound_iu_length) != 6); | |
8002 | BUILD_BUG_ON(offsetof(struct pqi_iu_layer_descriptor, | |
8003 | max_outbound_iu_length) != 14); | |
8004 | BUILD_BUG_ON(sizeof(struct pqi_iu_layer_descriptor) != 16); | |
8005 | ||
8006 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8007 | data_length) != 0); | |
8008 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8009 | iq_arbitration_priority_support_bitmask) != 8); | |
8010 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8011 | maximum_aw_a) != 9); | |
8012 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8013 | maximum_aw_b) != 10); | |
8014 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8015 | maximum_aw_c) != 11); | |
8016 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8017 | max_inbound_queues) != 16); | |
8018 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8019 | max_elements_per_iq) != 18); | |
8020 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8021 | max_iq_element_length) != 24); | |
8022 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8023 | min_iq_element_length) != 26); | |
8024 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8025 | max_outbound_queues) != 30); | |
8026 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8027 | max_elements_per_oq) != 32); | |
8028 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8029 | intr_coalescing_time_granularity) != 34); | |
8030 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8031 | max_oq_element_length) != 36); | |
8032 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8033 | min_oq_element_length) != 38); | |
8034 | BUILD_BUG_ON(offsetof(struct pqi_device_capability, | |
8035 | iu_layer_descriptors) != 64); | |
8036 | BUILD_BUG_ON(sizeof(struct pqi_device_capability) != 576); | |
8037 | ||
8038 | BUILD_BUG_ON(offsetof(struct pqi_event_descriptor, | |
8039 | event_type) != 0); | |
8040 | BUILD_BUG_ON(offsetof(struct pqi_event_descriptor, | |
8041 | oq_id) != 2); | |
8042 | BUILD_BUG_ON(sizeof(struct pqi_event_descriptor) != 4); | |
8043 | ||
8044 | BUILD_BUG_ON(offsetof(struct pqi_event_config, | |
8045 | num_event_descriptors) != 2); | |
8046 | BUILD_BUG_ON(offsetof(struct pqi_event_config, | |
8047 | descriptors) != 4); | |
8048 | ||
061ef06a KB |
8049 | BUILD_BUG_ON(PQI_NUM_SUPPORTED_EVENTS != |
8050 | ARRAY_SIZE(pqi_supported_event_types)); | |
8051 | ||
6c223761 KB |
8052 | BUILD_BUG_ON(offsetof(struct pqi_event_response, |
8053 | header.iu_type) != 0); | |
8054 | BUILD_BUG_ON(offsetof(struct pqi_event_response, | |
8055 | header.iu_length) != 2); | |
8056 | BUILD_BUG_ON(offsetof(struct pqi_event_response, | |
8057 | event_type) != 8); | |
8058 | BUILD_BUG_ON(offsetof(struct pqi_event_response, | |
8059 | event_id) != 10); | |
8060 | BUILD_BUG_ON(offsetof(struct pqi_event_response, | |
8061 | additional_event_id) != 12); | |
8062 | BUILD_BUG_ON(offsetof(struct pqi_event_response, | |
8063 | data) != 16); | |
8064 | BUILD_BUG_ON(sizeof(struct pqi_event_response) != 32); | |
8065 | ||
8066 | BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, | |
8067 | header.iu_type) != 0); | |
8068 | BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, | |
8069 | header.iu_length) != 2); | |
8070 | BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, | |
8071 | event_type) != 8); | |
8072 | BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, | |
8073 | event_id) != 10); | |
8074 | BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request, | |
8075 | additional_event_id) != 12); | |
8076 | BUILD_BUG_ON(sizeof(struct pqi_event_acknowledge_request) != 16); | |
8077 | ||
8078 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
8079 | header.iu_type) != 0); | |
8080 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
8081 | header.iu_length) != 2); | |
8082 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
8083 | request_id) != 8); | |
8084 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
8085 | nexus_id) != 10); | |
8086 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
8087 | lun_number) != 16); | |
8088 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
8089 | protocol_specific) != 24); | |
8090 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
8091 | outbound_queue_id_to_manage) != 26); | |
8092 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
8093 | request_id_to_manage) != 28); | |
8094 | BUILD_BUG_ON(offsetof(struct pqi_task_management_request, | |
8095 | task_management_function) != 30); | |
8096 | BUILD_BUG_ON(sizeof(struct pqi_task_management_request) != 32); | |
8097 | ||
8098 | BUILD_BUG_ON(offsetof(struct pqi_task_management_response, | |
8099 | header.iu_type) != 0); | |
8100 | BUILD_BUG_ON(offsetof(struct pqi_task_management_response, | |
8101 | header.iu_length) != 2); | |
8102 | BUILD_BUG_ON(offsetof(struct pqi_task_management_response, | |
8103 | request_id) != 8); | |
8104 | BUILD_BUG_ON(offsetof(struct pqi_task_management_response, | |
8105 | nexus_id) != 10); | |
8106 | BUILD_BUG_ON(offsetof(struct pqi_task_management_response, | |
8107 | additional_response_info) != 12); | |
8108 | BUILD_BUG_ON(offsetof(struct pqi_task_management_response, | |
8109 | response_code) != 15); | |
8110 | BUILD_BUG_ON(sizeof(struct pqi_task_management_response) != 16); | |
8111 | ||
8112 | BUILD_BUG_ON(offsetof(struct bmic_identify_controller, | |
8113 | configured_logical_drive_count) != 0); | |
8114 | BUILD_BUG_ON(offsetof(struct bmic_identify_controller, | |
8115 | configuration_signature) != 1); | |
8116 | BUILD_BUG_ON(offsetof(struct bmic_identify_controller, | |
8117 | firmware_version) != 5); | |
8118 | BUILD_BUG_ON(offsetof(struct bmic_identify_controller, | |
8119 | extended_logical_unit_count) != 154); | |
8120 | BUILD_BUG_ON(offsetof(struct bmic_identify_controller, | |
8121 | firmware_build_number) != 190); | |
8122 | BUILD_BUG_ON(offsetof(struct bmic_identify_controller, | |
8123 | controller_mode) != 292); | |
8124 | ||
1be42f46 KB |
8125 | BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, |
8126 | phys_bay_in_box) != 115); | |
8127 | BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, | |
8128 | device_type) != 120); | |
8129 | BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, | |
8130 | redundant_path_present_map) != 1736); | |
8131 | BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, | |
8132 | active_path_number) != 1738); | |
8133 | BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, | |
8134 | alternate_paths_phys_connector) != 1739); | |
8135 | BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, | |
8136 | alternate_paths_phys_box_on_port) != 1755); | |
8137 | BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device, | |
8138 | current_queue_depth_limit) != 1796); | |
8139 | BUILD_BUG_ON(sizeof(struct bmic_identify_physical_device) != 2560); | |
8140 | ||
6c223761 KB |
8141 | BUILD_BUG_ON(PQI_ADMIN_IQ_NUM_ELEMENTS > 255); |
8142 | BUILD_BUG_ON(PQI_ADMIN_OQ_NUM_ELEMENTS > 255); | |
8143 | BUILD_BUG_ON(PQI_ADMIN_IQ_ELEMENT_LENGTH % | |
8144 | PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0); | |
8145 | BUILD_BUG_ON(PQI_ADMIN_OQ_ELEMENT_LENGTH % | |
8146 | PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0); | |
8147 | BUILD_BUG_ON(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH > 1048560); | |
8148 | BUILD_BUG_ON(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH % | |
8149 | PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0); | |
8150 | BUILD_BUG_ON(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH > 1048560); | |
8151 | BUILD_BUG_ON(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH % | |
8152 | PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0); | |
8153 | ||
8154 | BUILD_BUG_ON(PQI_RESERVED_IO_SLOTS >= PQI_MAX_OUTSTANDING_REQUESTS); | |
d727a776 KB |
8155 | BUILD_BUG_ON(PQI_RESERVED_IO_SLOTS >= |
8156 | PQI_MAX_OUTSTANDING_REQUESTS_KDUMP); | |
6c223761 | 8157 | } |