1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Driver for Broadcom MPI3 Storage Controllers
4 *
5 * Copyright (C) 2017-2023 Broadcom Inc.
6 * (mailto: mpi3mr-linuxdrv.pdl@broadcom.com)
7 *
8 */
9
10 #include "mpi3mr.h"
11 #include <linux/io-64-nonatomic-lo-hi.h>
12
13 static int
14 mpi3mr_issue_reset(struct mpi3mr_ioc *mrioc, u16 reset_type, u16 reset_reason);
15 static int mpi3mr_setup_admin_qpair(struct mpi3mr_ioc *mrioc);
16 static void mpi3mr_process_factsdata(struct mpi3mr_ioc *mrioc,
17 struct mpi3_ioc_facts_data *facts_data);
18 static void mpi3mr_pel_wait_complete(struct mpi3mr_ioc *mrioc,
19 struct mpi3mr_drv_cmd *drv_cmd);
20 static int mpi3mr_check_op_admin_proc(struct mpi3mr_ioc *mrioc);
21 static int poll_queues;
22 module_param(poll_queues, int, 0444);
23 MODULE_PARM_DESC(poll_queues, "Number of queues for io_uring poll mode. (Range 1 - 126)");
24 static bool threaded_isr_poll = true;
25 module_param(threaded_isr_poll, bool, 0444);
26 MODULE_PARM_DESC(threaded_isr_poll,
27 "Enablement of IRQ polling thread (default=true)");
28
29 #if defined(writeq) && defined(CONFIG_64BIT)
mpi3mr_writeq(__u64 b,void __iomem * addr,spinlock_t * write_queue_lock)30 static inline void mpi3mr_writeq(__u64 b, void __iomem *addr,
31 spinlock_t *write_queue_lock)
32 {
33 writeq(b, addr);
34 }
35 #else
mpi3mr_writeq(__u64 b,void __iomem * addr,spinlock_t * write_queue_lock)36 static inline void mpi3mr_writeq(__u64 b, void __iomem *addr,
37 spinlock_t *write_queue_lock)
38 {
39 __u64 data_out = b;
40 unsigned long flags;
41
42 spin_lock_irqsave(write_queue_lock, flags);
43 writel((u32)(data_out), addr);
44 writel((u32)(data_out >> 32), (addr + 4));
45 spin_unlock_irqrestore(write_queue_lock, flags);
46 }
47 #endif
48
49 static inline bool
mpi3mr_check_req_qfull(struct op_req_qinfo * op_req_q)50 mpi3mr_check_req_qfull(struct op_req_qinfo *op_req_q)
51 {
52 u16 pi, ci, max_entries;
53 bool is_qfull = false;
54
55 pi = op_req_q->pi;
56 ci = READ_ONCE(op_req_q->ci);
57 max_entries = op_req_q->num_requests;
58
59 if ((ci == (pi + 1)) || ((!ci) && (pi == (max_entries - 1))))
60 is_qfull = true;
61
62 return is_qfull;
63 }
64
mpi3mr_sync_irqs(struct mpi3mr_ioc * mrioc)65 static void mpi3mr_sync_irqs(struct mpi3mr_ioc *mrioc)
66 {
67 u16 i, max_vectors;
68
69 max_vectors = mrioc->intr_info_count;
70
71 for (i = 0; i < max_vectors; i++)
72 synchronize_irq(pci_irq_vector(mrioc->pdev, i));
73 }
74
mpi3mr_ioc_disable_intr(struct mpi3mr_ioc * mrioc)75 void mpi3mr_ioc_disable_intr(struct mpi3mr_ioc *mrioc)
76 {
77 mrioc->intr_enabled = 0;
78 mpi3mr_sync_irqs(mrioc);
79 }
80
mpi3mr_ioc_enable_intr(struct mpi3mr_ioc * mrioc)81 void mpi3mr_ioc_enable_intr(struct mpi3mr_ioc *mrioc)
82 {
83 mrioc->intr_enabled = 1;
84 }
85
mpi3mr_cleanup_isr(struct mpi3mr_ioc * mrioc)86 static void mpi3mr_cleanup_isr(struct mpi3mr_ioc *mrioc)
87 {
88 u16 i;
89
90 mpi3mr_ioc_disable_intr(mrioc);
91
92 if (!mrioc->intr_info)
93 return;
94
95 for (i = 0; i < mrioc->intr_info_count; i++)
96 free_irq(pci_irq_vector(mrioc->pdev, i),
97 (mrioc->intr_info + i));
98
99 kfree(mrioc->intr_info);
100 mrioc->intr_info = NULL;
101 mrioc->intr_info_count = 0;
102 mrioc->is_intr_info_set = false;
103 pci_free_irq_vectors(mrioc->pdev);
104 }
105
mpi3mr_add_sg_single(void * paddr,u8 flags,u32 length,dma_addr_t dma_addr)106 void mpi3mr_add_sg_single(void *paddr, u8 flags, u32 length,
107 dma_addr_t dma_addr)
108 {
109 struct mpi3_sge_common *sgel = paddr;
110
111 sgel->flags = flags;
112 sgel->length = cpu_to_le32(length);
113 sgel->address = cpu_to_le64(dma_addr);
114 }
115
mpi3mr_build_zero_len_sge(void * paddr)116 void mpi3mr_build_zero_len_sge(void *paddr)
117 {
118 u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
119
120 mpi3mr_add_sg_single(paddr, sgl_flags, 0, -1);
121 }
122
mpi3mr_get_reply_virt_addr(struct mpi3mr_ioc * mrioc,dma_addr_t phys_addr)123 void *mpi3mr_get_reply_virt_addr(struct mpi3mr_ioc *mrioc,
124 dma_addr_t phys_addr)
125 {
126 if (!phys_addr)
127 return NULL;
128
129 if ((phys_addr < mrioc->reply_buf_dma) ||
130 (phys_addr > mrioc->reply_buf_dma_max_address))
131 return NULL;
132
133 return mrioc->reply_buf + (phys_addr - mrioc->reply_buf_dma);
134 }
135
mpi3mr_get_sensebuf_virt_addr(struct mpi3mr_ioc * mrioc,dma_addr_t phys_addr)136 void *mpi3mr_get_sensebuf_virt_addr(struct mpi3mr_ioc *mrioc,
137 dma_addr_t phys_addr)
138 {
139 if (!phys_addr)
140 return NULL;
141
142 return mrioc->sense_buf + (phys_addr - mrioc->sense_buf_dma);
143 }
144
mpi3mr_repost_reply_buf(struct mpi3mr_ioc * mrioc,u64 reply_dma)145 static void mpi3mr_repost_reply_buf(struct mpi3mr_ioc *mrioc,
146 u64 reply_dma)
147 {
148 u32 old_idx = 0;
149 unsigned long flags;
150
151 spin_lock_irqsave(&mrioc->reply_free_queue_lock, flags);
152 old_idx = mrioc->reply_free_queue_host_index;
153 mrioc->reply_free_queue_host_index = (
154 (mrioc->reply_free_queue_host_index ==
155 (mrioc->reply_free_qsz - 1)) ? 0 :
156 (mrioc->reply_free_queue_host_index + 1));
157 mrioc->reply_free_q[old_idx] = cpu_to_le64(reply_dma);
158 writel(mrioc->reply_free_queue_host_index,
159 &mrioc->sysif_regs->reply_free_host_index);
160 spin_unlock_irqrestore(&mrioc->reply_free_queue_lock, flags);
161 }
162
mpi3mr_repost_sense_buf(struct mpi3mr_ioc * mrioc,u64 sense_buf_dma)163 void mpi3mr_repost_sense_buf(struct mpi3mr_ioc *mrioc,
164 u64 sense_buf_dma)
165 {
166 u32 old_idx = 0;
167 unsigned long flags;
168
169 spin_lock_irqsave(&mrioc->sbq_lock, flags);
170 old_idx = mrioc->sbq_host_index;
171 mrioc->sbq_host_index = ((mrioc->sbq_host_index ==
172 (mrioc->sense_buf_q_sz - 1)) ? 0 :
173 (mrioc->sbq_host_index + 1));
174 mrioc->sense_buf_q[old_idx] = cpu_to_le64(sense_buf_dma);
175 writel(mrioc->sbq_host_index,
176 &mrioc->sysif_regs->sense_buffer_free_host_index);
177 spin_unlock_irqrestore(&mrioc->sbq_lock, flags);
178 }
179
mpi3mr_print_event_data(struct mpi3mr_ioc * mrioc,struct mpi3_event_notification_reply * event_reply)180 static void mpi3mr_print_event_data(struct mpi3mr_ioc *mrioc,
181 struct mpi3_event_notification_reply *event_reply)
182 {
183 char *desc = NULL;
184 u16 event;
185
186 if (!(mrioc->logging_level & MPI3_DEBUG_EVENT))
187 return;
188
189 event = event_reply->event;
190
191 switch (event) {
192 case MPI3_EVENT_LOG_DATA:
193 desc = "Log Data";
194 break;
195 case MPI3_EVENT_CHANGE:
196 desc = "Event Change";
197 break;
198 case MPI3_EVENT_GPIO_INTERRUPT:
199 desc = "GPIO Interrupt";
200 break;
201 case MPI3_EVENT_CABLE_MGMT:
202 desc = "Cable Management";
203 break;
204 case MPI3_EVENT_ENERGY_PACK_CHANGE:
205 desc = "Energy Pack Change";
206 break;
207 case MPI3_EVENT_DEVICE_ADDED:
208 {
209 struct mpi3_device_page0 *event_data =
210 (struct mpi3_device_page0 *)event_reply->event_data;
211 ioc_info(mrioc, "Device Added: dev=0x%04x Form=0x%x\n",
212 event_data->dev_handle, event_data->device_form);
213 return;
214 }
215 case MPI3_EVENT_DEVICE_INFO_CHANGED:
216 {
217 struct mpi3_device_page0 *event_data =
218 (struct mpi3_device_page0 *)event_reply->event_data;
219 ioc_info(mrioc, "Device Info Changed: dev=0x%04x Form=0x%x\n",
220 event_data->dev_handle, event_data->device_form);
221 return;
222 }
223 case MPI3_EVENT_DEVICE_STATUS_CHANGE:
224 {
225 struct mpi3_event_data_device_status_change *event_data =
226 (struct mpi3_event_data_device_status_change *)event_reply->event_data;
227 ioc_info(mrioc, "Device status Change: dev=0x%04x RC=0x%x\n",
228 event_data->dev_handle, event_data->reason_code);
229 return;
230 }
231 case MPI3_EVENT_SAS_DISCOVERY:
232 {
233 struct mpi3_event_data_sas_discovery *event_data =
234 (struct mpi3_event_data_sas_discovery *)event_reply->event_data;
235 ioc_info(mrioc, "SAS Discovery: (%s) status (0x%08x)\n",
236 (event_data->reason_code == MPI3_EVENT_SAS_DISC_RC_STARTED) ?
237 "start" : "stop",
238 le32_to_cpu(event_data->discovery_status));
239 return;
240 }
241 case MPI3_EVENT_SAS_BROADCAST_PRIMITIVE:
242 desc = "SAS Broadcast Primitive";
243 break;
244 case MPI3_EVENT_SAS_NOTIFY_PRIMITIVE:
245 desc = "SAS Notify Primitive";
246 break;
247 case MPI3_EVENT_SAS_INIT_DEVICE_STATUS_CHANGE:
248 desc = "SAS Init Device Status Change";
249 break;
250 case MPI3_EVENT_SAS_INIT_TABLE_OVERFLOW:
251 desc = "SAS Init Table Overflow";
252 break;
253 case MPI3_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
254 desc = "SAS Topology Change List";
255 break;
256 case MPI3_EVENT_ENCL_DEVICE_STATUS_CHANGE:
257 desc = "Enclosure Device Status Change";
258 break;
259 case MPI3_EVENT_ENCL_DEVICE_ADDED:
260 desc = "Enclosure Added";
261 break;
262 case MPI3_EVENT_HARD_RESET_RECEIVED:
263 desc = "Hard Reset Received";
264 break;
265 case MPI3_EVENT_SAS_PHY_COUNTER:
266 desc = "SAS PHY Counter";
267 break;
268 case MPI3_EVENT_SAS_DEVICE_DISCOVERY_ERROR:
269 desc = "SAS Device Discovery Error";
270 break;
271 case MPI3_EVENT_PCIE_TOPOLOGY_CHANGE_LIST:
272 desc = "PCIE Topology Change List";
273 break;
274 case MPI3_EVENT_PCIE_ENUMERATION:
275 {
276 struct mpi3_event_data_pcie_enumeration *event_data =
277 (struct mpi3_event_data_pcie_enumeration *)event_reply->event_data;
278 ioc_info(mrioc, "PCIE Enumeration: (%s)",
279 (event_data->reason_code ==
280 MPI3_EVENT_PCIE_ENUM_RC_STARTED) ? "start" : "stop");
281 if (event_data->enumeration_status)
282 ioc_info(mrioc, "enumeration_status(0x%08x)\n",
283 le32_to_cpu(event_data->enumeration_status));
284 return;
285 }
286 case MPI3_EVENT_PREPARE_FOR_RESET:
287 desc = "Prepare For Reset";
288 break;
289 case MPI3_EVENT_DIAGNOSTIC_BUFFER_STATUS_CHANGE:
290 desc = "Diagnostic Buffer Status Change";
291 break;
292 }
293
294 if (!desc)
295 return;
296
297 ioc_info(mrioc, "%s\n", desc);
298 }
299
mpi3mr_handle_events(struct mpi3mr_ioc * mrioc,struct mpi3_default_reply * def_reply)300 static void mpi3mr_handle_events(struct mpi3mr_ioc *mrioc,
301 struct mpi3_default_reply *def_reply)
302 {
303 struct mpi3_event_notification_reply *event_reply =
304 (struct mpi3_event_notification_reply *)def_reply;
305
306 mrioc->change_count = le16_to_cpu(event_reply->ioc_change_count);
307 mpi3mr_print_event_data(mrioc, event_reply);
308 mpi3mr_os_handle_events(mrioc, event_reply);
309 }
310
311 static struct mpi3mr_drv_cmd *
mpi3mr_get_drv_cmd(struct mpi3mr_ioc * mrioc,u16 host_tag,struct mpi3_default_reply * def_reply)312 mpi3mr_get_drv_cmd(struct mpi3mr_ioc *mrioc, u16 host_tag,
313 struct mpi3_default_reply *def_reply)
314 {
315 u16 idx;
316
317 switch (host_tag) {
318 case MPI3MR_HOSTTAG_INITCMDS:
319 return &mrioc->init_cmds;
320 case MPI3MR_HOSTTAG_CFG_CMDS:
321 return &mrioc->cfg_cmds;
322 case MPI3MR_HOSTTAG_BSG_CMDS:
323 return &mrioc->bsg_cmds;
324 case MPI3MR_HOSTTAG_BLK_TMS:
325 return &mrioc->host_tm_cmds;
326 case MPI3MR_HOSTTAG_PEL_ABORT:
327 return &mrioc->pel_abort_cmd;
328 case MPI3MR_HOSTTAG_PEL_WAIT:
329 return &mrioc->pel_cmds;
330 case MPI3MR_HOSTTAG_TRANSPORT_CMDS:
331 return &mrioc->transport_cmds;
332 case MPI3MR_HOSTTAG_INVALID:
333 if (def_reply && def_reply->function ==
334 MPI3_FUNCTION_EVENT_NOTIFICATION)
335 mpi3mr_handle_events(mrioc, def_reply);
336 return NULL;
337 default:
338 break;
339 }
340 if (host_tag >= MPI3MR_HOSTTAG_DEVRMCMD_MIN &&
341 host_tag <= MPI3MR_HOSTTAG_DEVRMCMD_MAX) {
342 idx = host_tag - MPI3MR_HOSTTAG_DEVRMCMD_MIN;
343 return &mrioc->dev_rmhs_cmds[idx];
344 }
345
346 if (host_tag >= MPI3MR_HOSTTAG_EVTACKCMD_MIN &&
347 host_tag <= MPI3MR_HOSTTAG_EVTACKCMD_MAX) {
348 idx = host_tag - MPI3MR_HOSTTAG_EVTACKCMD_MIN;
349 return &mrioc->evtack_cmds[idx];
350 }
351
352 return NULL;
353 }
354
mpi3mr_process_admin_reply_desc(struct mpi3mr_ioc * mrioc,struct mpi3_default_reply_descriptor * reply_desc,u64 * reply_dma)355 static void mpi3mr_process_admin_reply_desc(struct mpi3mr_ioc *mrioc,
356 struct mpi3_default_reply_descriptor *reply_desc, u64 *reply_dma)
357 {
358 u16 reply_desc_type, host_tag = 0;
359 u16 ioc_status = MPI3_IOCSTATUS_SUCCESS;
360 u16 masked_ioc_status = MPI3_IOCSTATUS_SUCCESS;
361 u32 ioc_loginfo = 0, sense_count = 0;
362 struct mpi3_status_reply_descriptor *status_desc;
363 struct mpi3_address_reply_descriptor *addr_desc;
364 struct mpi3_success_reply_descriptor *success_desc;
365 struct mpi3_default_reply *def_reply = NULL;
366 struct mpi3mr_drv_cmd *cmdptr = NULL;
367 struct mpi3_scsi_io_reply *scsi_reply;
368 struct scsi_sense_hdr sshdr;
369 u8 *sense_buf = NULL;
370
371 *reply_dma = 0;
372 reply_desc_type = le16_to_cpu(reply_desc->reply_flags) &
373 MPI3_REPLY_DESCRIPT_FLAGS_TYPE_MASK;
374 switch (reply_desc_type) {
375 case MPI3_REPLY_DESCRIPT_FLAGS_TYPE_STATUS:
376 status_desc = (struct mpi3_status_reply_descriptor *)reply_desc;
377 host_tag = le16_to_cpu(status_desc->host_tag);
378 ioc_status = le16_to_cpu(status_desc->ioc_status);
379 if (ioc_status &
380 MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_LOGINFOAVAIL)
381 ioc_loginfo = le32_to_cpu(status_desc->ioc_log_info);
382 masked_ioc_status = ioc_status & MPI3_IOCSTATUS_STATUS_MASK;
383 mpi3mr_reply_trigger(mrioc, masked_ioc_status, ioc_loginfo);
384 break;
385 case MPI3_REPLY_DESCRIPT_FLAGS_TYPE_ADDRESS_REPLY:
386 addr_desc = (struct mpi3_address_reply_descriptor *)reply_desc;
387 *reply_dma = le64_to_cpu(addr_desc->reply_frame_address);
388 def_reply = mpi3mr_get_reply_virt_addr(mrioc, *reply_dma);
389 if (!def_reply)
390 goto out;
391 host_tag = le16_to_cpu(def_reply->host_tag);
392 ioc_status = le16_to_cpu(def_reply->ioc_status);
393 if (ioc_status &
394 MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_LOGINFOAVAIL)
395 ioc_loginfo = le32_to_cpu(def_reply->ioc_log_info);
396 masked_ioc_status = ioc_status & MPI3_IOCSTATUS_STATUS_MASK;
397 if (def_reply->function == MPI3_FUNCTION_SCSI_IO) {
398 scsi_reply = (struct mpi3_scsi_io_reply *)def_reply;
399 sense_buf = mpi3mr_get_sensebuf_virt_addr(mrioc,
400 le64_to_cpu(scsi_reply->sense_data_buffer_address));
401 sense_count = le32_to_cpu(scsi_reply->sense_count);
402 if (sense_buf) {
403 scsi_normalize_sense(sense_buf, sense_count,
404 &sshdr);
405 mpi3mr_scsisense_trigger(mrioc, sshdr.sense_key,
406 sshdr.asc, sshdr.ascq);
407 }
408 }
409 mpi3mr_reply_trigger(mrioc, masked_ioc_status, ioc_loginfo);
410 break;
411 case MPI3_REPLY_DESCRIPT_FLAGS_TYPE_SUCCESS:
412 success_desc = (struct mpi3_success_reply_descriptor *)reply_desc;
413 host_tag = le16_to_cpu(success_desc->host_tag);
414 break;
415 default:
416 break;
417 }
418
419 cmdptr = mpi3mr_get_drv_cmd(mrioc, host_tag, def_reply);
420 if (cmdptr) {
421 if (cmdptr->state & MPI3MR_CMD_PENDING) {
422 cmdptr->state |= MPI3MR_CMD_COMPLETE;
423 cmdptr->ioc_loginfo = ioc_loginfo;
424 if (host_tag == MPI3MR_HOSTTAG_BSG_CMDS)
425 cmdptr->ioc_status = ioc_status;
426 else
427 cmdptr->ioc_status = masked_ioc_status;
428 cmdptr->state &= ~MPI3MR_CMD_PENDING;
429 if (def_reply) {
430 cmdptr->state |= MPI3MR_CMD_REPLY_VALID;
431 memcpy((u8 *)cmdptr->reply, (u8 *)def_reply,
432 mrioc->reply_sz);
433 }
434 if (sense_buf && cmdptr->sensebuf) {
435 cmdptr->is_sense = 1;
436 memcpy(cmdptr->sensebuf, sense_buf,
437 MPI3MR_SENSE_BUF_SZ);
438 }
439 if (cmdptr->is_waiting) {
440 cmdptr->is_waiting = 0;
441 complete(&cmdptr->done);
442 } else if (cmdptr->callback)
443 cmdptr->callback(mrioc, cmdptr);
444 }
445 }
446 out:
447 if (sense_buf)
448 mpi3mr_repost_sense_buf(mrioc,
449 le64_to_cpu(scsi_reply->sense_data_buffer_address));
450 }
451
mpi3mr_process_admin_reply_q(struct mpi3mr_ioc * mrioc)452 int mpi3mr_process_admin_reply_q(struct mpi3mr_ioc *mrioc)
453 {
454 u32 exp_phase = mrioc->admin_reply_ephase;
455 u32 admin_reply_ci = mrioc->admin_reply_ci;
456 u32 num_admin_replies = 0;
457 u64 reply_dma = 0;
458 u16 threshold_comps = 0;
459 struct mpi3_default_reply_descriptor *reply_desc;
460
461 if (!atomic_add_unless(&mrioc->admin_reply_q_in_use, 1, 1)) {
462 atomic_inc(&mrioc->admin_pend_isr);
463 return 0;
464 }
465
466 atomic_set(&mrioc->admin_pend_isr, 0);
467 reply_desc = (struct mpi3_default_reply_descriptor *)mrioc->admin_reply_base +
468 admin_reply_ci;
469
470 if ((le16_to_cpu(reply_desc->reply_flags) &
471 MPI3_REPLY_DESCRIPT_FLAGS_PHASE_MASK) != exp_phase) {
472 atomic_dec(&mrioc->admin_reply_q_in_use);
473 return 0;
474 }
475
476 do {
477 if (mrioc->unrecoverable || mrioc->io_admin_reset_sync)
478 break;
479
480 mrioc->admin_req_ci = le16_to_cpu(reply_desc->request_queue_ci);
481 mpi3mr_process_admin_reply_desc(mrioc, reply_desc, &reply_dma);
482 if (reply_dma)
483 mpi3mr_repost_reply_buf(mrioc, reply_dma);
484 num_admin_replies++;
485 threshold_comps++;
486 if (++admin_reply_ci == mrioc->num_admin_replies) {
487 admin_reply_ci = 0;
488 exp_phase ^= 1;
489 }
490 reply_desc =
491 (struct mpi3_default_reply_descriptor *)mrioc->admin_reply_base +
492 admin_reply_ci;
493 if ((le16_to_cpu(reply_desc->reply_flags) &
494 MPI3_REPLY_DESCRIPT_FLAGS_PHASE_MASK) != exp_phase)
495 break;
496 if (threshold_comps == MPI3MR_THRESHOLD_REPLY_COUNT) {
497 writel(admin_reply_ci,
498 &mrioc->sysif_regs->admin_reply_queue_ci);
499 threshold_comps = 0;
500 }
501 } while (1);
502
503 writel(admin_reply_ci, &mrioc->sysif_regs->admin_reply_queue_ci);
504 mrioc->admin_reply_ci = admin_reply_ci;
505 mrioc->admin_reply_ephase = exp_phase;
506 atomic_dec(&mrioc->admin_reply_q_in_use);
507
508 return num_admin_replies;
509 }
510
511 /**
512 * mpi3mr_get_reply_desc - get reply descriptor frame corresponding to
513 * queue's consumer index from operational reply descriptor queue.
514 * @op_reply_q: op_reply_qinfo object
515 * @reply_ci: operational reply descriptor's queue consumer index
516 *
517 * Returns: reply descriptor frame address
518 */
519 static inline struct mpi3_default_reply_descriptor *
mpi3mr_get_reply_desc(struct op_reply_qinfo * op_reply_q,u32 reply_ci)520 mpi3mr_get_reply_desc(struct op_reply_qinfo *op_reply_q, u32 reply_ci)
521 {
522 void *segment_base_addr;
523 struct segments *segments = op_reply_q->q_segments;
524 struct mpi3_default_reply_descriptor *reply_desc = NULL;
525
526 segment_base_addr =
527 segments[reply_ci / op_reply_q->segment_qd].segment;
528 reply_desc = (struct mpi3_default_reply_descriptor *)segment_base_addr +
529 (reply_ci % op_reply_q->segment_qd);
530 return reply_desc;
531 }
532
533 /**
534 * mpi3mr_process_op_reply_q - Operational reply queue handler
535 * @mrioc: Adapter instance reference
536 * @op_reply_q: Operational reply queue info
537 *
538 * Checks the specific operational reply queue and drains the
539 * reply queue entries until the queue is empty and process the
540 * individual reply descriptors.
541 *
542 * Return: 0 if queue is already processed,or number of reply
543 * descriptors processed.
544 */
mpi3mr_process_op_reply_q(struct mpi3mr_ioc * mrioc,struct op_reply_qinfo * op_reply_q)545 int mpi3mr_process_op_reply_q(struct mpi3mr_ioc *mrioc,
546 struct op_reply_qinfo *op_reply_q)
547 {
548 struct op_req_qinfo *op_req_q;
549 u32 exp_phase;
550 u32 reply_ci;
551 u32 num_op_reply = 0;
552 u64 reply_dma = 0;
553 struct mpi3_default_reply_descriptor *reply_desc;
554 u16 req_q_idx = 0, reply_qidx, threshold_comps = 0;
555
556 reply_qidx = op_reply_q->qid - 1;
557
558 if (!atomic_add_unless(&op_reply_q->in_use, 1, 1))
559 return 0;
560
561 exp_phase = op_reply_q->ephase;
562 reply_ci = op_reply_q->ci;
563
564 reply_desc = mpi3mr_get_reply_desc(op_reply_q, reply_ci);
565 if ((le16_to_cpu(reply_desc->reply_flags) &
566 MPI3_REPLY_DESCRIPT_FLAGS_PHASE_MASK) != exp_phase) {
567 atomic_dec(&op_reply_q->in_use);
568 return 0;
569 }
570
571 do {
572 if (mrioc->unrecoverable || mrioc->io_admin_reset_sync)
573 break;
574
575 req_q_idx = le16_to_cpu(reply_desc->request_queue_id) - 1;
576 op_req_q = &mrioc->req_qinfo[req_q_idx];
577
578 WRITE_ONCE(op_req_q->ci, le16_to_cpu(reply_desc->request_queue_ci));
579 mpi3mr_process_op_reply_desc(mrioc, reply_desc, &reply_dma,
580 reply_qidx);
581
582 if (reply_dma)
583 mpi3mr_repost_reply_buf(mrioc, reply_dma);
584 num_op_reply++;
585 threshold_comps++;
586
587 if (++reply_ci == op_reply_q->num_replies) {
588 reply_ci = 0;
589 exp_phase ^= 1;
590 }
591
592 reply_desc = mpi3mr_get_reply_desc(op_reply_q, reply_ci);
593
594 if ((le16_to_cpu(reply_desc->reply_flags) &
595 MPI3_REPLY_DESCRIPT_FLAGS_PHASE_MASK) != exp_phase)
596 break;
597 #ifndef CONFIG_PREEMPT_RT
598 /*
599 * Exit completion loop to avoid CPU lockup
600 * Ensure remaining completion happens from threaded ISR.
601 */
602 if ((num_op_reply > mrioc->max_host_ios) &&
603 (threaded_isr_poll == true)) {
604 op_reply_q->enable_irq_poll = true;
605 break;
606 }
607 #endif
608 if (threshold_comps == MPI3MR_THRESHOLD_REPLY_COUNT) {
609 writel(reply_ci,
610 &mrioc->sysif_regs->oper_queue_indexes[reply_qidx].consumer_index);
611 atomic_sub(threshold_comps, &op_reply_q->pend_ios);
612 threshold_comps = 0;
613 }
614 } while (1);
615
616 writel(reply_ci,
617 &mrioc->sysif_regs->oper_queue_indexes[reply_qidx].consumer_index);
618 op_reply_q->ci = reply_ci;
619 op_reply_q->ephase = exp_phase;
620 atomic_sub(threshold_comps, &op_reply_q->pend_ios);
621 atomic_dec(&op_reply_q->in_use);
622 return num_op_reply;
623 }
624
625 /**
626 * mpi3mr_blk_mq_poll - Operational reply queue handler
627 * @shost: SCSI Host reference
628 * @queue_num: Request queue number (w.r.t OS it is hardware context number)
629 *
630 * Checks the specific operational reply queue and drains the
631 * reply queue entries until the queue is empty and process the
632 * individual reply descriptors.
633 *
634 * Return: 0 if queue is already processed,or number of reply
635 * descriptors processed.
636 */
mpi3mr_blk_mq_poll(struct Scsi_Host * shost,unsigned int queue_num)637 int mpi3mr_blk_mq_poll(struct Scsi_Host *shost, unsigned int queue_num)
638 {
639 int num_entries = 0;
640 struct mpi3mr_ioc *mrioc;
641
642 mrioc = (struct mpi3mr_ioc *)shost->hostdata;
643
644 if ((mrioc->reset_in_progress || mrioc->prepare_for_reset ||
645 mrioc->unrecoverable || mrioc->pci_err_recovery))
646 return 0;
647
648 num_entries = mpi3mr_process_op_reply_q(mrioc,
649 &mrioc->op_reply_qinfo[queue_num]);
650
651 return num_entries;
652 }
653
mpi3mr_isr_primary(int irq,void * privdata)654 static irqreturn_t mpi3mr_isr_primary(int irq, void *privdata)
655 {
656 struct mpi3mr_intr_info *intr_info = privdata;
657 struct mpi3mr_ioc *mrioc;
658 u16 midx;
659 u32 num_admin_replies = 0, num_op_reply = 0;
660
661 if (!intr_info)
662 return IRQ_NONE;
663
664 mrioc = intr_info->mrioc;
665
666 if (!mrioc->intr_enabled)
667 return IRQ_NONE;
668
669 midx = intr_info->msix_index;
670
671 if (!midx)
672 num_admin_replies = mpi3mr_process_admin_reply_q(mrioc);
673 if (intr_info->op_reply_q)
674 num_op_reply = mpi3mr_process_op_reply_q(mrioc,
675 intr_info->op_reply_q);
676
677 if (num_admin_replies || num_op_reply)
678 return IRQ_HANDLED;
679 else
680 return IRQ_NONE;
681 }
682
683 #ifndef CONFIG_PREEMPT_RT
684
mpi3mr_isr(int irq,void * privdata)685 static irqreturn_t mpi3mr_isr(int irq, void *privdata)
686 {
687 struct mpi3mr_intr_info *intr_info = privdata;
688 int ret;
689
690 if (!intr_info)
691 return IRQ_NONE;
692
693 /* Call primary ISR routine */
694 ret = mpi3mr_isr_primary(irq, privdata);
695
696 /*
697 * If more IOs are expected, schedule IRQ polling thread.
698 * Otherwise exit from ISR.
699 */
700 if ((threaded_isr_poll == false) || !intr_info->op_reply_q)
701 return ret;
702
703 if (!intr_info->op_reply_q->enable_irq_poll ||
704 !atomic_read(&intr_info->op_reply_q->pend_ios))
705 return ret;
706
707 disable_irq_nosync(intr_info->os_irq);
708
709 return IRQ_WAKE_THREAD;
710 }
711
712 /**
713 * mpi3mr_isr_poll - Reply queue polling routine
714 * @irq: IRQ
715 * @privdata: Interrupt info
716 *
717 * poll for pending I/O completions in a loop until pending I/Os
718 * present or controller queue depth I/Os are processed.
719 *
720 * Return: IRQ_NONE or IRQ_HANDLED
721 */
mpi3mr_isr_poll(int irq,void * privdata)722 static irqreturn_t mpi3mr_isr_poll(int irq, void *privdata)
723 {
724 struct mpi3mr_intr_info *intr_info = privdata;
725 struct mpi3mr_ioc *mrioc;
726 u16 midx;
727 u32 num_op_reply = 0;
728
729 if (!intr_info || !intr_info->op_reply_q)
730 return IRQ_NONE;
731
732 mrioc = intr_info->mrioc;
733 midx = intr_info->msix_index;
734
735 /* Poll for pending IOs completions */
736 do {
737 if (!mrioc->intr_enabled || mrioc->unrecoverable)
738 break;
739
740 if (!midx)
741 mpi3mr_process_admin_reply_q(mrioc);
742 if (intr_info->op_reply_q)
743 num_op_reply +=
744 mpi3mr_process_op_reply_q(mrioc,
745 intr_info->op_reply_q);
746
747 usleep_range(MPI3MR_IRQ_POLL_SLEEP, MPI3MR_IRQ_POLL_SLEEP + 1);
748
749 } while (atomic_read(&intr_info->op_reply_q->pend_ios) &&
750 (num_op_reply < mrioc->max_host_ios));
751
752 intr_info->op_reply_q->enable_irq_poll = false;
753 enable_irq(intr_info->os_irq);
754
755 return IRQ_HANDLED;
756 }
757
758 #endif
759
760 /**
761 * mpi3mr_request_irq - Request IRQ and register ISR
762 * @mrioc: Adapter instance reference
763 * @index: IRQ vector index
764 *
765 * Request threaded ISR with primary ISR and secondary
766 *
767 * Return: 0 on success and non zero on failures.
768 */
mpi3mr_request_irq(struct mpi3mr_ioc * mrioc,u16 index)769 static inline int mpi3mr_request_irq(struct mpi3mr_ioc *mrioc, u16 index)
770 {
771 struct pci_dev *pdev = mrioc->pdev;
772 struct mpi3mr_intr_info *intr_info = mrioc->intr_info + index;
773 int retval = 0;
774
775 intr_info->mrioc = mrioc;
776 intr_info->msix_index = index;
777 intr_info->op_reply_q = NULL;
778
779 scnprintf(intr_info->name, MPI3MR_NAME_LENGTH,
780 "%.32s%d-msix%u", mrioc->driver_name, mrioc->id, index);
781
782 #ifndef CONFIG_PREEMPT_RT
783 retval = request_threaded_irq(pci_irq_vector(pdev, index), mpi3mr_isr,
784 mpi3mr_isr_poll, IRQF_SHARED, intr_info->name, intr_info);
785 #else
786 retval = request_threaded_irq(pci_irq_vector(pdev, index), mpi3mr_isr_primary,
787 NULL, IRQF_SHARED, intr_info->name, intr_info);
788 #endif
789 if (retval) {
790 ioc_err(mrioc, "%s: Unable to allocate interrupt %d!\n",
791 intr_info->name, pci_irq_vector(pdev, index));
792 return retval;
793 }
794
795 intr_info->os_irq = pci_irq_vector(pdev, index);
796 return retval;
797 }
798
mpi3mr_calc_poll_queues(struct mpi3mr_ioc * mrioc,u16 max_vectors)799 static void mpi3mr_calc_poll_queues(struct mpi3mr_ioc *mrioc, u16 max_vectors)
800 {
801 if (!mrioc->requested_poll_qcount)
802 return;
803
804 /* Reserved for Admin and Default Queue */
805 if (max_vectors > 2 &&
806 (mrioc->requested_poll_qcount < max_vectors - 2)) {
807 ioc_info(mrioc,
808 "enabled polled queues (%d) msix (%d)\n",
809 mrioc->requested_poll_qcount, max_vectors);
810 } else {
811 ioc_info(mrioc,
812 "disabled polled queues (%d) msix (%d) because of no resources for default queue\n",
813 mrioc->requested_poll_qcount, max_vectors);
814 mrioc->requested_poll_qcount = 0;
815 }
816 }
817
818 /**
819 * mpi3mr_setup_isr - Setup ISR for the controller
820 * @mrioc: Adapter instance reference
821 * @setup_one: Request one IRQ or more
822 *
823 * Allocate IRQ vectors and call mpi3mr_request_irq to setup ISR
824 *
825 * Return: 0 on success and non zero on failures.
826 */
mpi3mr_setup_isr(struct mpi3mr_ioc * mrioc,u8 setup_one)827 static int mpi3mr_setup_isr(struct mpi3mr_ioc *mrioc, u8 setup_one)
828 {
829 unsigned int irq_flags = PCI_IRQ_MSIX;
830 int max_vectors, min_vec;
831 int retval;
832 int i;
833 struct irq_affinity desc = { .pre_vectors = 1, .post_vectors = 1 };
834
835 if (mrioc->is_intr_info_set)
836 return 0;
837
838 mpi3mr_cleanup_isr(mrioc);
839
840 if (setup_one || reset_devices) {
841 max_vectors = 1;
842 retval = pci_alloc_irq_vectors(mrioc->pdev,
843 1, max_vectors, irq_flags);
844 if (retval < 0) {
845 ioc_err(mrioc, "cannot allocate irq vectors, ret %d\n",
846 retval);
847 goto out_failed;
848 }
849 } else {
850 max_vectors =
851 min_t(int, mrioc->cpu_count + 1 +
852 mrioc->requested_poll_qcount, mrioc->msix_count);
853
854 mpi3mr_calc_poll_queues(mrioc, max_vectors);
855
856 ioc_info(mrioc,
857 "MSI-X vectors supported: %d, no of cores: %d,",
858 mrioc->msix_count, mrioc->cpu_count);
859 ioc_info(mrioc,
860 "MSI-x vectors requested: %d poll_queues %d\n",
861 max_vectors, mrioc->requested_poll_qcount);
862
863 desc.post_vectors = mrioc->requested_poll_qcount;
864 min_vec = desc.pre_vectors + desc.post_vectors;
865 irq_flags |= PCI_IRQ_AFFINITY | PCI_IRQ_ALL_TYPES;
866
867 retval = pci_alloc_irq_vectors_affinity(mrioc->pdev,
868 min_vec, max_vectors, irq_flags, &desc);
869
870 if (retval < 0) {
871 ioc_err(mrioc, "cannot allocate irq vectors, ret %d\n",
872 retval);
873 goto out_failed;
874 }
875
876
877 /*
878 * If only one MSI-x is allocated, then MSI-x 0 will be shared
879 * between Admin queue and operational queue
880 */
881 if (retval == min_vec)
882 mrioc->op_reply_q_offset = 0;
883 else if (retval != (max_vectors)) {
884 ioc_info(mrioc,
885 "allocated vectors (%d) are less than configured (%d)\n",
886 retval, max_vectors);
887 }
888
889 max_vectors = retval;
890 mrioc->op_reply_q_offset = (max_vectors > 1) ? 1 : 0;
891
892 mpi3mr_calc_poll_queues(mrioc, max_vectors);
893
894 }
895
896 mrioc->intr_info = kzalloc(sizeof(struct mpi3mr_intr_info) * max_vectors,
897 GFP_KERNEL);
898 if (!mrioc->intr_info) {
899 retval = -ENOMEM;
900 pci_free_irq_vectors(mrioc->pdev);
901 goto out_failed;
902 }
903 for (i = 0; i < max_vectors; i++) {
904 retval = mpi3mr_request_irq(mrioc, i);
905 if (retval) {
906 mrioc->intr_info_count = i;
907 goto out_failed;
908 }
909 }
910 if (reset_devices || !setup_one)
911 mrioc->is_intr_info_set = true;
912 mrioc->intr_info_count = max_vectors;
913 mpi3mr_ioc_enable_intr(mrioc);
914 return 0;
915
916 out_failed:
917 mpi3mr_cleanup_isr(mrioc);
918
919 return retval;
920 }
921
922 static const struct {
923 enum mpi3mr_iocstate value;
924 char *name;
925 } mrioc_states[] = {
926 { MRIOC_STATE_READY, "ready" },
927 { MRIOC_STATE_FAULT, "fault" },
928 { MRIOC_STATE_RESET, "reset" },
929 { MRIOC_STATE_BECOMING_READY, "becoming ready" },
930 { MRIOC_STATE_RESET_REQUESTED, "reset requested" },
931 { MRIOC_STATE_UNRECOVERABLE, "unrecoverable error" },
932 };
933
mpi3mr_iocstate_name(enum mpi3mr_iocstate mrioc_state)934 static const char *mpi3mr_iocstate_name(enum mpi3mr_iocstate mrioc_state)
935 {
936 int i;
937 char *name = NULL;
938
939 for (i = 0; i < ARRAY_SIZE(mrioc_states); i++) {
940 if (mrioc_states[i].value == mrioc_state) {
941 name = mrioc_states[i].name;
942 break;
943 }
944 }
945 return name;
946 }
947
948 /* Reset reason to name mapper structure*/
949 static const struct {
950 enum mpi3mr_reset_reason value;
951 char *name;
952 } mpi3mr_reset_reason_codes[] = {
953 { MPI3MR_RESET_FROM_BRINGUP, "timeout in bringup" },
954 { MPI3MR_RESET_FROM_FAULT_WATCH, "fault" },
955 { MPI3MR_RESET_FROM_APP, "application invocation" },
956 { MPI3MR_RESET_FROM_EH_HOS, "error handling" },
957 { MPI3MR_RESET_FROM_TM_TIMEOUT, "TM timeout" },
958 { MPI3MR_RESET_FROM_APP_TIMEOUT, "application command timeout" },
959 { MPI3MR_RESET_FROM_MUR_FAILURE, "MUR failure" },
960 { MPI3MR_RESET_FROM_CTLR_CLEANUP, "timeout in controller cleanup" },
961 { MPI3MR_RESET_FROM_CIACTIV_FAULT, "component image activation fault" },
962 { MPI3MR_RESET_FROM_PE_TIMEOUT, "port enable timeout" },
963 { MPI3MR_RESET_FROM_TSU_TIMEOUT, "time stamp update timeout" },
964 { MPI3MR_RESET_FROM_DELREQQ_TIMEOUT, "delete request queue timeout" },
965 { MPI3MR_RESET_FROM_DELREPQ_TIMEOUT, "delete reply queue timeout" },
966 {
967 MPI3MR_RESET_FROM_CREATEREPQ_TIMEOUT,
968 "create request queue timeout"
969 },
970 {
971 MPI3MR_RESET_FROM_CREATEREQQ_TIMEOUT,
972 "create reply queue timeout"
973 },
974 { MPI3MR_RESET_FROM_IOCFACTS_TIMEOUT, "IOC facts timeout" },
975 { MPI3MR_RESET_FROM_IOCINIT_TIMEOUT, "IOC init timeout" },
976 { MPI3MR_RESET_FROM_EVTNOTIFY_TIMEOUT, "event notify timeout" },
977 { MPI3MR_RESET_FROM_EVTACK_TIMEOUT, "event acknowledgment timeout" },
978 {
979 MPI3MR_RESET_FROM_CIACTVRST_TIMER,
980 "component image activation timeout"
981 },
982 {
983 MPI3MR_RESET_FROM_GETPKGVER_TIMEOUT,
984 "get package version timeout"
985 },
986 { MPI3MR_RESET_FROM_SYSFS, "sysfs invocation" },
987 { MPI3MR_RESET_FROM_SYSFS_TIMEOUT, "sysfs TM timeout" },
988 {
989 MPI3MR_RESET_FROM_DIAG_BUFFER_POST_TIMEOUT,
990 "diagnostic buffer post timeout"
991 },
992 {
993 MPI3MR_RESET_FROM_DIAG_BUFFER_RELEASE_TIMEOUT,
994 "diagnostic buffer release timeout"
995 },
996 { MPI3MR_RESET_FROM_FIRMWARE, "firmware asynchronous reset" },
997 { MPI3MR_RESET_FROM_CFG_REQ_TIMEOUT, "configuration request timeout"},
998 { MPI3MR_RESET_FROM_SAS_TRANSPORT_TIMEOUT, "timeout of a SAS transport layer request" },
999 };
1000
1001 /**
1002 * mpi3mr_reset_rc_name - get reset reason code name
1003 * @reason_code: reset reason code value
1004 *
1005 * Map reset reason to an NULL terminated ASCII string
1006 *
1007 * Return: name corresponding to reset reason value or NULL.
1008 */
mpi3mr_reset_rc_name(enum mpi3mr_reset_reason reason_code)1009 static const char *mpi3mr_reset_rc_name(enum mpi3mr_reset_reason reason_code)
1010 {
1011 int i;
1012 char *name = NULL;
1013
1014 for (i = 0; i < ARRAY_SIZE(mpi3mr_reset_reason_codes); i++) {
1015 if (mpi3mr_reset_reason_codes[i].value == reason_code) {
1016 name = mpi3mr_reset_reason_codes[i].name;
1017 break;
1018 }
1019 }
1020 return name;
1021 }
1022
1023 /* Reset type to name mapper structure*/
1024 static const struct {
1025 u16 reset_type;
1026 char *name;
1027 } mpi3mr_reset_types[] = {
1028 { MPI3_SYSIF_HOST_DIAG_RESET_ACTION_SOFT_RESET, "soft" },
1029 { MPI3_SYSIF_HOST_DIAG_RESET_ACTION_DIAG_FAULT, "diag fault" },
1030 };
1031
1032 /**
1033 * mpi3mr_reset_type_name - get reset type name
1034 * @reset_type: reset type value
1035 *
1036 * Map reset type to an NULL terminated ASCII string
1037 *
1038 * Return: name corresponding to reset type value or NULL.
1039 */
mpi3mr_reset_type_name(u16 reset_type)1040 static const char *mpi3mr_reset_type_name(u16 reset_type)
1041 {
1042 int i;
1043 char *name = NULL;
1044
1045 for (i = 0; i < ARRAY_SIZE(mpi3mr_reset_types); i++) {
1046 if (mpi3mr_reset_types[i].reset_type == reset_type) {
1047 name = mpi3mr_reset_types[i].name;
1048 break;
1049 }
1050 }
1051 return name;
1052 }
1053
1054 /**
1055 * mpi3mr_is_fault_recoverable - Read fault code and decide
1056 * whether the controller can be recoverable
1057 * @mrioc: Adapter instance reference
1058 * Return: true if fault is recoverable, false otherwise.
1059 */
mpi3mr_is_fault_recoverable(struct mpi3mr_ioc * mrioc)1060 static inline bool mpi3mr_is_fault_recoverable(struct mpi3mr_ioc *mrioc)
1061 {
1062 u32 fault;
1063
1064 fault = (readl(&mrioc->sysif_regs->fault) &
1065 MPI3_SYSIF_FAULT_CODE_MASK);
1066
1067 switch (fault) {
1068 case MPI3_SYSIF_FAULT_CODE_COMPLETE_RESET_NEEDED:
1069 case MPI3_SYSIF_FAULT_CODE_POWER_CYCLE_REQUIRED:
1070 ioc_warn(mrioc,
1071 "controller requires system power cycle, marking controller as unrecoverable\n");
1072 return false;
1073 case MPI3_SYSIF_FAULT_CODE_INSUFFICIENT_PCI_SLOT_POWER:
1074 ioc_warn(mrioc,
1075 "controller faulted due to insufficient power,\n"
1076 " try by connecting it to a different slot\n");
1077 return false;
1078 default:
1079 break;
1080 }
1081 return true;
1082 }
1083
1084 /**
1085 * mpi3mr_print_fault_info - Display fault information
1086 * @mrioc: Adapter instance reference
1087 *
1088 * Display the controller fault information if there is a
1089 * controller fault.
1090 *
1091 * Return: Nothing.
1092 */
mpi3mr_print_fault_info(struct mpi3mr_ioc * mrioc)1093 void mpi3mr_print_fault_info(struct mpi3mr_ioc *mrioc)
1094 {
1095 u32 ioc_status, code, code1, code2, code3;
1096
1097 ioc_status = readl(&mrioc->sysif_regs->ioc_status);
1098
1099 if (ioc_status & MPI3_SYSIF_IOC_STATUS_FAULT) {
1100 code = readl(&mrioc->sysif_regs->fault);
1101 code1 = readl(&mrioc->sysif_regs->fault_info[0]);
1102 code2 = readl(&mrioc->sysif_regs->fault_info[1]);
1103 code3 = readl(&mrioc->sysif_regs->fault_info[2]);
1104
1105 ioc_info(mrioc,
1106 "fault code(0x%08X): Additional code: (0x%08X:0x%08X:0x%08X)\n",
1107 code, code1, code2, code3);
1108 }
1109 }
1110
1111 /**
1112 * mpi3mr_save_fault_info - Save fault information
1113 * @mrioc: Adapter instance reference
1114 *
1115 * Save the controller fault information if there is a
1116 * controller fault.
1117 *
1118 * Return: Nothing.
1119 */
mpi3mr_save_fault_info(struct mpi3mr_ioc * mrioc)1120 static void mpi3mr_save_fault_info(struct mpi3mr_ioc *mrioc)
1121 {
1122 u32 ioc_status, i;
1123
1124 ioc_status = readl(&mrioc->sysif_regs->ioc_status);
1125
1126 if (ioc_status & MPI3_SYSIF_IOC_STATUS_FAULT) {
1127 mrioc->saved_fault_code = readl(&mrioc->sysif_regs->fault) &
1128 MPI3_SYSIF_FAULT_CODE_MASK;
1129 for (i = 0; i < 3; i++) {
1130 mrioc->saved_fault_info[i] =
1131 readl(&mrioc->sysif_regs->fault_info[i]);
1132 }
1133 }
1134 }
1135
1136 /**
1137 * mpi3mr_get_iocstate - Get IOC State
1138 * @mrioc: Adapter instance reference
1139 *
1140 * Return a proper IOC state enum based on the IOC status and
1141 * IOC configuration and unrcoverable state of the controller.
1142 *
1143 * Return: Current IOC state.
1144 */
mpi3mr_get_iocstate(struct mpi3mr_ioc * mrioc)1145 enum mpi3mr_iocstate mpi3mr_get_iocstate(struct mpi3mr_ioc *mrioc)
1146 {
1147 u32 ioc_status, ioc_config;
1148 u8 ready, enabled;
1149
1150 ioc_status = readl(&mrioc->sysif_regs->ioc_status);
1151 ioc_config = readl(&mrioc->sysif_regs->ioc_configuration);
1152
1153 if (mrioc->unrecoverable)
1154 return MRIOC_STATE_UNRECOVERABLE;
1155 if (ioc_status & MPI3_SYSIF_IOC_STATUS_FAULT)
1156 return MRIOC_STATE_FAULT;
1157
1158 ready = (ioc_status & MPI3_SYSIF_IOC_STATUS_READY);
1159 enabled = (ioc_config & MPI3_SYSIF_IOC_CONFIG_ENABLE_IOC);
1160
1161 if (ready && enabled)
1162 return MRIOC_STATE_READY;
1163 if ((!ready) && (!enabled))
1164 return MRIOC_STATE_RESET;
1165 if ((!ready) && (enabled))
1166 return MRIOC_STATE_BECOMING_READY;
1167
1168 return MRIOC_STATE_RESET_REQUESTED;
1169 }
1170
1171 /**
1172 * mpi3mr_free_ioctl_dma_memory - free memory for ioctl dma
1173 * @mrioc: Adapter instance reference
1174 *
1175 * Free the DMA memory allocated for IOCTL handling purpose.
1176 *
1177 * Return: None
1178 */
mpi3mr_free_ioctl_dma_memory(struct mpi3mr_ioc * mrioc)1179 static void mpi3mr_free_ioctl_dma_memory(struct mpi3mr_ioc *mrioc)
1180 {
1181 struct dma_memory_desc *mem_desc;
1182 u16 i;
1183
1184 if (!mrioc->ioctl_dma_pool)
1185 return;
1186
1187 for (i = 0; i < MPI3MR_NUM_IOCTL_SGE; i++) {
1188 mem_desc = &mrioc->ioctl_sge[i];
1189 if (mem_desc->addr) {
1190 dma_pool_free(mrioc->ioctl_dma_pool,
1191 mem_desc->addr,
1192 mem_desc->dma_addr);
1193 mem_desc->addr = NULL;
1194 }
1195 }
1196 dma_pool_destroy(mrioc->ioctl_dma_pool);
1197 mrioc->ioctl_dma_pool = NULL;
1198 mem_desc = &mrioc->ioctl_chain_sge;
1199
1200 if (mem_desc->addr) {
1201 dma_free_coherent(&mrioc->pdev->dev, mem_desc->size,
1202 mem_desc->addr, mem_desc->dma_addr);
1203 mem_desc->addr = NULL;
1204 }
1205 mem_desc = &mrioc->ioctl_resp_sge;
1206 if (mem_desc->addr) {
1207 dma_free_coherent(&mrioc->pdev->dev, mem_desc->size,
1208 mem_desc->addr, mem_desc->dma_addr);
1209 mem_desc->addr = NULL;
1210 }
1211
1212 mrioc->ioctl_sges_allocated = false;
1213 }
1214
1215 /**
1216 * mpi3mr_alloc_ioctl_dma_memory - Alloc memory for ioctl dma
1217 * @mrioc: Adapter instance reference
1218 *
1219 * This function allocates dmaable memory required to handle the
1220 * application issued MPI3 IOCTL requests.
1221 *
1222 * Return: None
1223 */
mpi3mr_alloc_ioctl_dma_memory(struct mpi3mr_ioc * mrioc)1224 static void mpi3mr_alloc_ioctl_dma_memory(struct mpi3mr_ioc *mrioc)
1225
1226 {
1227 struct dma_memory_desc *mem_desc;
1228 u16 i;
1229
1230 mrioc->ioctl_dma_pool = dma_pool_create("ioctl dma pool",
1231 &mrioc->pdev->dev,
1232 MPI3MR_IOCTL_SGE_SIZE,
1233 MPI3MR_PAGE_SIZE_4K, 0);
1234
1235 if (!mrioc->ioctl_dma_pool) {
1236 ioc_err(mrioc, "ioctl_dma_pool: dma_pool_create failed\n");
1237 goto out_failed;
1238 }
1239
1240 for (i = 0; i < MPI3MR_NUM_IOCTL_SGE; i++) {
1241 mem_desc = &mrioc->ioctl_sge[i];
1242 mem_desc->size = MPI3MR_IOCTL_SGE_SIZE;
1243 mem_desc->addr = dma_pool_zalloc(mrioc->ioctl_dma_pool,
1244 GFP_KERNEL,
1245 &mem_desc->dma_addr);
1246 if (!mem_desc->addr)
1247 goto out_failed;
1248 }
1249
1250 mem_desc = &mrioc->ioctl_chain_sge;
1251 mem_desc->size = MPI3MR_PAGE_SIZE_4K;
1252 mem_desc->addr = dma_alloc_coherent(&mrioc->pdev->dev,
1253 mem_desc->size,
1254 &mem_desc->dma_addr,
1255 GFP_KERNEL);
1256 if (!mem_desc->addr)
1257 goto out_failed;
1258
1259 mem_desc = &mrioc->ioctl_resp_sge;
1260 mem_desc->size = MPI3MR_PAGE_SIZE_4K;
1261 mem_desc->addr = dma_alloc_coherent(&mrioc->pdev->dev,
1262 mem_desc->size,
1263 &mem_desc->dma_addr,
1264 GFP_KERNEL);
1265 if (!mem_desc->addr)
1266 goto out_failed;
1267
1268 mrioc->ioctl_sges_allocated = true;
1269
1270 return;
1271 out_failed:
1272 ioc_warn(mrioc, "cannot allocate DMA memory for the mpt commands\n"
1273 "from the applications, application interface for MPT command is disabled\n");
1274 mpi3mr_free_ioctl_dma_memory(mrioc);
1275 }
1276
1277 /**
1278 * mpi3mr_fault_uevent_emit - Emit uevent for any controller
1279 * fault
1280 * @mrioc: Pointer to the mpi3mr_ioc structure for the controller instance
1281 *
1282 * This function is invoked when the controller undergoes any
1283 * type of fault.
1284 */
1285
mpi3mr_fault_uevent_emit(struct mpi3mr_ioc * mrioc)1286 static void mpi3mr_fault_uevent_emit(struct mpi3mr_ioc *mrioc)
1287 {
1288 struct kobj_uevent_env *env;
1289 int ret;
1290
1291 env = kzalloc_obj(*env);
1292 if (!env)
1293 return;
1294
1295 ret = add_uevent_var(env, "DRIVER=%s", mrioc->driver_name);
1296 if (ret)
1297 goto out_free;
1298
1299 ret = add_uevent_var(env, "IOC_ID=%u", mrioc->id);
1300 if (ret)
1301 goto out_free;
1302
1303 ret = add_uevent_var(env, "FAULT_CODE=0x%08x",
1304 mrioc->saved_fault_code);
1305 if (ret)
1306 goto out_free;
1307
1308 ret = add_uevent_var(env, "FAULT_INFO0=0x%08x",
1309 mrioc->saved_fault_info[0]);
1310 if (ret)
1311 goto out_free;
1312
1313 ret = add_uevent_var(env, "FAULT_INFO1=0x%08x",
1314 mrioc->saved_fault_info[1]);
1315 if (ret)
1316 goto out_free;
1317
1318 ret = add_uevent_var(env, "FAULT_INFO2=0x%08x",
1319 mrioc->saved_fault_info[2]);
1320 if (ret)
1321 goto out_free;
1322
1323 kobject_uevent_env(&mrioc->shost->shost_gendev.kobj,
1324 KOBJ_CHANGE, env->envp);
1325
1326 out_free:
1327 kfree(env);
1328
1329 }
1330
1331 /**
1332 * mpi3mr_clear_reset_history - clear reset history
1333 * @mrioc: Adapter instance reference
1334 *
1335 * Write the reset history bit in IOC status to clear the bit,
1336 * if it is already set.
1337 *
1338 * Return: Nothing.
1339 */
mpi3mr_clear_reset_history(struct mpi3mr_ioc * mrioc)1340 static inline void mpi3mr_clear_reset_history(struct mpi3mr_ioc *mrioc)
1341 {
1342 u32 ioc_status;
1343
1344 ioc_status = readl(&mrioc->sysif_regs->ioc_status);
1345 if (ioc_status & MPI3_SYSIF_IOC_STATUS_RESET_HISTORY)
1346 writel(ioc_status, &mrioc->sysif_regs->ioc_status);
1347 }
1348
1349 /**
1350 * mpi3mr_issue_and_process_mur - Message unit Reset handler
1351 * @mrioc: Adapter instance reference
1352 * @reset_reason: Reset reason code
1353 *
1354 * Issue Message unit Reset to the controller and wait for it to
1355 * be complete.
1356 *
1357 * Return: 0 on success, -1 on failure.
1358 */
mpi3mr_issue_and_process_mur(struct mpi3mr_ioc * mrioc,u32 reset_reason)1359 static int mpi3mr_issue_and_process_mur(struct mpi3mr_ioc *mrioc,
1360 u32 reset_reason)
1361 {
1362 u32 ioc_config, timeout, ioc_status, scratch_pad0;
1363 int retval = -1;
1364
1365 ioc_info(mrioc, "Issuing Message unit Reset(MUR)\n");
1366 if (mrioc->unrecoverable) {
1367 ioc_info(mrioc, "IOC is unrecoverable MUR not issued\n");
1368 return retval;
1369 }
1370 mpi3mr_clear_reset_history(mrioc);
1371 scratch_pad0 = ((MPI3MR_RESET_REASON_OSTYPE_LINUX <<
1372 MPI3MR_RESET_REASON_OSTYPE_SHIFT) |
1373 (mrioc->facts.ioc_num <<
1374 MPI3MR_RESET_REASON_IOCNUM_SHIFT) | reset_reason);
1375 writel(scratch_pad0, &mrioc->sysif_regs->scratchpad[0]);
1376 ioc_config = readl(&mrioc->sysif_regs->ioc_configuration);
1377 ioc_config &= ~MPI3_SYSIF_IOC_CONFIG_ENABLE_IOC;
1378 writel(ioc_config, &mrioc->sysif_regs->ioc_configuration);
1379
1380 timeout = MPI3MR_MUR_TIMEOUT * 10;
1381 do {
1382 ioc_status = readl(&mrioc->sysif_regs->ioc_status);
1383 if ((ioc_status & MPI3_SYSIF_IOC_STATUS_RESET_HISTORY)) {
1384 mpi3mr_clear_reset_history(mrioc);
1385 break;
1386 }
1387 if (ioc_status & MPI3_SYSIF_IOC_STATUS_FAULT) {
1388 mpi3mr_print_fault_info(mrioc);
1389 break;
1390 }
1391 msleep(100);
1392 } while (--timeout);
1393
1394 ioc_config = readl(&mrioc->sysif_regs->ioc_configuration);
1395 if (timeout && !((ioc_status & MPI3_SYSIF_IOC_STATUS_READY) ||
1396 (ioc_status & MPI3_SYSIF_IOC_STATUS_FAULT) ||
1397 (ioc_config & MPI3_SYSIF_IOC_CONFIG_ENABLE_IOC)))
1398 retval = 0;
1399
1400 ioc_info(mrioc, "Base IOC Sts/Config after %s MUR is (0x%08x)/(0x%08x)\n",
1401 (!retval) ? "successful" : "failed", ioc_status, ioc_config);
1402 return retval;
1403 }
1404
1405 /**
1406 * mpi3mr_revalidate_factsdata - validate IOCFacts parameters
1407 * during reset/resume
1408 * @mrioc: Adapter instance reference
1409 *
1410 * Return: zero if the new IOCFacts parameters value is compatible with
1411 * older values else return -EPERM
1412 */
1413 static int
mpi3mr_revalidate_factsdata(struct mpi3mr_ioc * mrioc)1414 mpi3mr_revalidate_factsdata(struct mpi3mr_ioc *mrioc)
1415 {
1416 unsigned long *removepend_bitmap;
1417
1418 if (mrioc->facts.reply_sz > mrioc->reply_sz) {
1419 ioc_err(mrioc,
1420 "cannot increase reply size from %d to %d\n",
1421 mrioc->reply_sz, mrioc->facts.reply_sz);
1422 return -EPERM;
1423 }
1424
1425 if (mrioc->facts.max_op_reply_q < mrioc->num_op_reply_q) {
1426 ioc_err(mrioc,
1427 "cannot reduce number of operational reply queues from %d to %d\n",
1428 mrioc->num_op_reply_q,
1429 mrioc->facts.max_op_reply_q);
1430 return -EPERM;
1431 }
1432
1433 if (mrioc->facts.max_op_req_q < mrioc->num_op_req_q) {
1434 ioc_err(mrioc,
1435 "cannot reduce number of operational request queues from %d to %d\n",
1436 mrioc->num_op_req_q, mrioc->facts.max_op_req_q);
1437 return -EPERM;
1438 }
1439
1440 if (mrioc->shost->max_sectors != (mrioc->facts.max_data_length / 512))
1441 ioc_err(mrioc, "Warning: The maximum data transfer length\n"
1442 "\tchanged after reset: previous(%d), new(%d),\n"
1443 "the driver cannot change this at run time\n",
1444 mrioc->shost->max_sectors * 512, mrioc->facts.max_data_length);
1445
1446 if ((mrioc->sas_transport_enabled) && (mrioc->facts.ioc_capabilities &
1447 MPI3_IOCFACTS_CAPABILITY_MULTIPATH_SUPPORTED))
1448 ioc_err(mrioc,
1449 "critical error: multipath capability is enabled at the\n"
1450 "\tcontroller while sas transport support is enabled at the\n"
1451 "\tdriver, please reboot the system or reload the driver\n");
1452
1453 if (mrioc->seg_tb_support) {
1454 if (!(mrioc->facts.ioc_capabilities &
1455 MPI3_IOCFACTS_CAPABILITY_SEG_DIAG_TRACE_SUPPORTED)) {
1456 ioc_err(mrioc,
1457 "critical error: previously enabled segmented trace\n"
1458 " buffer capability is disabled after reset. Please\n"
1459 " update the firmware or reboot the system or\n"
1460 " reload the driver to enable trace diag buffer\n");
1461 mrioc->diag_buffers[0].disabled_after_reset = true;
1462 } else
1463 mrioc->diag_buffers[0].disabled_after_reset = false;
1464 }
1465
1466 if (mrioc->facts.max_devhandle > mrioc->dev_handle_bitmap_bits) {
1467 removepend_bitmap = bitmap_zalloc(mrioc->facts.max_devhandle,
1468 GFP_KERNEL);
1469 if (!removepend_bitmap) {
1470 ioc_err(mrioc,
1471 "failed to increase removepend_bitmap bits from %d to %d\n",
1472 mrioc->dev_handle_bitmap_bits,
1473 mrioc->facts.max_devhandle);
1474 return -EPERM;
1475 }
1476 bitmap_free(mrioc->removepend_bitmap);
1477 mrioc->removepend_bitmap = removepend_bitmap;
1478 ioc_info(mrioc,
1479 "increased bits of dev_handle_bitmap from %d to %d\n",
1480 mrioc->dev_handle_bitmap_bits,
1481 mrioc->facts.max_devhandle);
1482 mrioc->dev_handle_bitmap_bits = mrioc->facts.max_devhandle;
1483 }
1484
1485 return 0;
1486 }
1487
1488 /**
1489 * mpi3mr_bring_ioc_ready - Bring controller to ready state
1490 * @mrioc: Adapter instance reference
1491 *
1492 * Set Enable IOC bit in IOC configuration register and wait for
1493 * the controller to become ready.
1494 *
1495 * Return: 0 on success, appropriate error on failure.
1496 */
mpi3mr_bring_ioc_ready(struct mpi3mr_ioc * mrioc)1497 static int mpi3mr_bring_ioc_ready(struct mpi3mr_ioc *mrioc)
1498 {
1499 u32 ioc_config, ioc_status, timeout, host_diagnostic;
1500 int retval = 0;
1501 enum mpi3mr_iocstate ioc_state;
1502 u64 base_info;
1503 u8 retry = 0;
1504 u64 start_time, elapsed_time_sec;
1505
1506 retry_bring_ioc_ready:
1507
1508 ioc_status = readl(&mrioc->sysif_regs->ioc_status);
1509 ioc_config = readl(&mrioc->sysif_regs->ioc_configuration);
1510 base_info = lo_hi_readq(&mrioc->sysif_regs->ioc_information);
1511 ioc_info(mrioc, "ioc_status(0x%08x), ioc_config(0x%08x), ioc_info(0x%016llx) at the bringup\n",
1512 ioc_status, ioc_config, base_info);
1513
1514 if (!mpi3mr_is_fault_recoverable(mrioc)) {
1515 mrioc->unrecoverable = 1;
1516 goto out_device_not_present;
1517 }
1518
1519 /*The timeout value is in 2sec unit, changing it to seconds*/
1520 mrioc->ready_timeout =
1521 ((base_info & MPI3_SYSIF_IOC_INFO_LOW_TIMEOUT_MASK) >>
1522 MPI3_SYSIF_IOC_INFO_LOW_TIMEOUT_SHIFT) * 2;
1523
1524 ioc_info(mrioc, "ready timeout: %d seconds\n", mrioc->ready_timeout);
1525
1526 ioc_state = mpi3mr_get_iocstate(mrioc);
1527 ioc_info(mrioc, "controller is in %s state during detection\n",
1528 mpi3mr_iocstate_name(ioc_state));
1529
1530 timeout = mrioc->ready_timeout * 10;
1531
1532 do {
1533 ioc_state = mpi3mr_get_iocstate(mrioc);
1534
1535 if (ioc_state != MRIOC_STATE_BECOMING_READY &&
1536 ioc_state != MRIOC_STATE_RESET_REQUESTED)
1537 break;
1538
1539 if (!pci_device_is_present(mrioc->pdev)) {
1540 mrioc->unrecoverable = 1;
1541 ioc_err(mrioc, "controller is not present while waiting to reset\n");
1542 goto out_device_not_present;
1543 }
1544
1545 msleep(100);
1546 } while (--timeout);
1547
1548 if (ioc_state == MRIOC_STATE_READY) {
1549 ioc_info(mrioc, "issuing message unit reset (MUR) to bring to reset state\n");
1550 retval = mpi3mr_issue_and_process_mur(mrioc,
1551 MPI3MR_RESET_FROM_BRINGUP);
1552 ioc_state = mpi3mr_get_iocstate(mrioc);
1553 if (retval)
1554 ioc_err(mrioc,
1555 "message unit reset failed with error %d current state %s\n",
1556 retval, mpi3mr_iocstate_name(ioc_state));
1557 }
1558 if (ioc_state != MRIOC_STATE_RESET) {
1559 if (ioc_state == MRIOC_STATE_FAULT) {
1560 timeout = MPI3_SYSIF_DIAG_SAVE_TIMEOUT * 10;
1561 mpi3mr_print_fault_info(mrioc);
1562 mpi3mr_save_fault_info(mrioc);
1563 mrioc->fault_during_init = 1;
1564 mrioc->fwfault_counter++;
1565
1566 do {
1567 host_diagnostic =
1568 readl(&mrioc->sysif_regs->host_diagnostic);
1569 if (!(host_diagnostic &
1570 MPI3_SYSIF_HOST_DIAG_SAVE_IN_PROGRESS))
1571 break;
1572 if (!pci_device_is_present(mrioc->pdev)) {
1573 mrioc->unrecoverable = 1;
1574 ioc_err(mrioc, "controller is not present at the bringup\n");
1575 goto out_device_not_present;
1576 }
1577 msleep(100);
1578 } while (--timeout);
1579 }
1580 mpi3mr_print_fault_info(mrioc);
1581 ioc_info(mrioc, "issuing soft reset to bring to reset state\n");
1582 retval = mpi3mr_issue_reset(mrioc,
1583 MPI3_SYSIF_HOST_DIAG_RESET_ACTION_SOFT_RESET,
1584 MPI3MR_RESET_FROM_BRINGUP);
1585 if (retval) {
1586 ioc_err(mrioc,
1587 "soft reset failed with error %d\n", retval);
1588 goto out_failed;
1589 }
1590 }
1591 ioc_state = mpi3mr_get_iocstate(mrioc);
1592 if (ioc_state != MRIOC_STATE_RESET) {
1593 ioc_err(mrioc,
1594 "cannot bring controller to reset state, current state: %s\n",
1595 mpi3mr_iocstate_name(ioc_state));
1596 goto out_failed;
1597 }
1598 mpi3mr_clear_reset_history(mrioc);
1599 retval = mpi3mr_setup_admin_qpair(mrioc);
1600 if (retval) {
1601 ioc_err(mrioc, "failed to setup admin queues: error %d\n",
1602 retval);
1603 goto out_failed;
1604 }
1605
1606 ioc_info(mrioc, "bringing controller to ready state\n");
1607 ioc_config = readl(&mrioc->sysif_regs->ioc_configuration);
1608 ioc_config |= MPI3_SYSIF_IOC_CONFIG_ENABLE_IOC;
1609 writel(ioc_config, &mrioc->sysif_regs->ioc_configuration);
1610
1611 if (retry == 0)
1612 start_time = jiffies;
1613
1614 timeout = mrioc->ready_timeout * 10;
1615 do {
1616 ioc_state = mpi3mr_get_iocstate(mrioc);
1617 if (ioc_state == MRIOC_STATE_READY) {
1618 ioc_info(mrioc,
1619 "successfully transitioned to %s state\n",
1620 mpi3mr_iocstate_name(ioc_state));
1621 return 0;
1622 }
1623 ioc_status = readl(&mrioc->sysif_regs->ioc_status);
1624 if ((ioc_status & MPI3_SYSIF_IOC_STATUS_RESET_HISTORY) ||
1625 (ioc_status & MPI3_SYSIF_IOC_STATUS_FAULT)) {
1626 mpi3mr_print_fault_info(mrioc);
1627 goto out_failed;
1628 }
1629 if (!pci_device_is_present(mrioc->pdev)) {
1630 mrioc->unrecoverable = 1;
1631 ioc_err(mrioc,
1632 "controller is not present at the bringup\n");
1633 retval = -1;
1634 goto out_device_not_present;
1635 }
1636 msleep(100);
1637 elapsed_time_sec = jiffies_to_msecs(jiffies - start_time)/1000;
1638 } while (elapsed_time_sec < mrioc->ready_timeout);
1639
1640 out_failed:
1641 elapsed_time_sec = jiffies_to_msecs(jiffies - start_time)/1000;
1642 if ((retry < 2) && (elapsed_time_sec < (mrioc->ready_timeout - 60))) {
1643 retry++;
1644
1645 ioc_warn(mrioc, "retrying to bring IOC ready, retry_count:%d\n"
1646 " elapsed time =%llu\n", retry, elapsed_time_sec);
1647
1648 goto retry_bring_ioc_ready;
1649 }
1650 ioc_state = mpi3mr_get_iocstate(mrioc);
1651 ioc_err(mrioc,
1652 "failed to bring to ready state, current state: %s\n",
1653 mpi3mr_iocstate_name(ioc_state));
1654 out_device_not_present:
1655 return retval;
1656 }
1657
1658 /**
1659 * mpi3mr_soft_reset_success - Check softreset is success or not
1660 * @ioc_status: IOC status register value
1661 * @ioc_config: IOC config register value
1662 *
1663 * Check whether the soft reset is successful or not based on
1664 * IOC status and IOC config register values.
1665 *
1666 * Return: True when the soft reset is success, false otherwise.
1667 */
1668 static inline bool
mpi3mr_soft_reset_success(u32 ioc_status,u32 ioc_config)1669 mpi3mr_soft_reset_success(u32 ioc_status, u32 ioc_config)
1670 {
1671 if (!((ioc_status & MPI3_SYSIF_IOC_STATUS_READY) ||
1672 (ioc_config & MPI3_SYSIF_IOC_CONFIG_ENABLE_IOC)))
1673 return true;
1674 return false;
1675 }
1676
1677 /**
1678 * mpi3mr_diagfault_success - Check diag fault is success or not
1679 * @mrioc: Adapter reference
1680 * @ioc_status: IOC status register value
1681 *
1682 * Check whether the controller hit diag reset fault code.
1683 *
1684 * Return: True when there is diag fault, false otherwise.
1685 */
mpi3mr_diagfault_success(struct mpi3mr_ioc * mrioc,u32 ioc_status)1686 static inline bool mpi3mr_diagfault_success(struct mpi3mr_ioc *mrioc,
1687 u32 ioc_status)
1688 {
1689 u32 fault;
1690
1691 if (!(ioc_status & MPI3_SYSIF_IOC_STATUS_FAULT))
1692 return false;
1693 fault = readl(&mrioc->sysif_regs->fault) & MPI3_SYSIF_FAULT_CODE_MASK;
1694 if (fault == MPI3_SYSIF_FAULT_CODE_DIAG_FAULT_RESET) {
1695 mpi3mr_print_fault_info(mrioc);
1696 return true;
1697 }
1698 return false;
1699 }
1700
1701 /**
1702 * mpi3mr_set_diagsave - Set diag save bit for snapdump
1703 * @mrioc: Adapter reference
1704 *
1705 * Set diag save bit in IOC configuration register to enable
1706 * snapdump.
1707 *
1708 * Return: Nothing.
1709 */
mpi3mr_set_diagsave(struct mpi3mr_ioc * mrioc)1710 static inline void mpi3mr_set_diagsave(struct mpi3mr_ioc *mrioc)
1711 {
1712 u32 ioc_config;
1713
1714 ioc_config = readl(&mrioc->sysif_regs->ioc_configuration);
1715 ioc_config |= MPI3_SYSIF_IOC_CONFIG_DIAG_SAVE;
1716 writel(ioc_config, &mrioc->sysif_regs->ioc_configuration);
1717 }
1718
1719 /**
1720 * mpi3mr_issue_reset - Issue reset to the controller
1721 * @mrioc: Adapter reference
1722 * @reset_type: Reset type
1723 * @reset_reason: Reset reason code
1724 *
1725 * Unlock the host diagnostic registers and write the specific
1726 * reset type to that, wait for reset acknowledgment from the
1727 * controller, if the reset is not successful retry for the
1728 * predefined number of times.
1729 *
1730 * Return: 0 on success, non-zero on failure.
1731 */
mpi3mr_issue_reset(struct mpi3mr_ioc * mrioc,u16 reset_type,u16 reset_reason)1732 static int mpi3mr_issue_reset(struct mpi3mr_ioc *mrioc, u16 reset_type,
1733 u16 reset_reason)
1734 {
1735 int retval = -1;
1736 u8 unlock_retry_count = 0;
1737 u32 host_diagnostic, ioc_status, ioc_config, scratch_pad0;
1738 u32 timeout = MPI3MR_RESET_ACK_TIMEOUT * 10;
1739
1740 if ((reset_type != MPI3_SYSIF_HOST_DIAG_RESET_ACTION_SOFT_RESET) &&
1741 (reset_type != MPI3_SYSIF_HOST_DIAG_RESET_ACTION_DIAG_FAULT))
1742 return retval;
1743 if (mrioc->unrecoverable)
1744 return retval;
1745 if (reset_reason == MPI3MR_RESET_FROM_FIRMWARE) {
1746 retval = 0;
1747 return retval;
1748 }
1749
1750 ioc_info(mrioc, "%s reset due to %s(0x%x)\n",
1751 mpi3mr_reset_type_name(reset_type),
1752 mpi3mr_reset_rc_name(reset_reason), reset_reason);
1753
1754 mpi3mr_clear_reset_history(mrioc);
1755 do {
1756 ioc_info(mrioc,
1757 "Write magic sequence to unlock host diag register (retry=%d)\n",
1758 ++unlock_retry_count);
1759 if (unlock_retry_count >= MPI3MR_HOSTDIAG_UNLOCK_RETRY_COUNT) {
1760 ioc_err(mrioc,
1761 "%s reset failed due to unlock failure, host_diagnostic(0x%08x)\n",
1762 mpi3mr_reset_type_name(reset_type),
1763 host_diagnostic);
1764 mrioc->unrecoverable = 1;
1765 return retval;
1766 }
1767
1768 writel(MPI3_SYSIF_WRITE_SEQUENCE_KEY_VALUE_FLUSH,
1769 &mrioc->sysif_regs->write_sequence);
1770 writel(MPI3_SYSIF_WRITE_SEQUENCE_KEY_VALUE_1ST,
1771 &mrioc->sysif_regs->write_sequence);
1772 writel(MPI3_SYSIF_WRITE_SEQUENCE_KEY_VALUE_2ND,
1773 &mrioc->sysif_regs->write_sequence);
1774 writel(MPI3_SYSIF_WRITE_SEQUENCE_KEY_VALUE_3RD,
1775 &mrioc->sysif_regs->write_sequence);
1776 writel(MPI3_SYSIF_WRITE_SEQUENCE_KEY_VALUE_4TH,
1777 &mrioc->sysif_regs->write_sequence);
1778 writel(MPI3_SYSIF_WRITE_SEQUENCE_KEY_VALUE_5TH,
1779 &mrioc->sysif_regs->write_sequence);
1780 writel(MPI3_SYSIF_WRITE_SEQUENCE_KEY_VALUE_6TH,
1781 &mrioc->sysif_regs->write_sequence);
1782 usleep_range(1000, 1100);
1783 host_diagnostic = readl(&mrioc->sysif_regs->host_diagnostic);
1784 ioc_info(mrioc,
1785 "wrote magic sequence: retry_count(%d), host_diagnostic(0x%08x)\n",
1786 unlock_retry_count, host_diagnostic);
1787 } while (!(host_diagnostic & MPI3_SYSIF_HOST_DIAG_DIAG_WRITE_ENABLE));
1788
1789 scratch_pad0 = ((MPI3MR_RESET_REASON_OSTYPE_LINUX <<
1790 MPI3MR_RESET_REASON_OSTYPE_SHIFT) | (mrioc->facts.ioc_num <<
1791 MPI3MR_RESET_REASON_IOCNUM_SHIFT) | reset_reason);
1792 writel(scratch_pad0, &mrioc->sysif_regs->scratchpad[0]);
1793 if (reset_type == MPI3_SYSIF_HOST_DIAG_RESET_ACTION_DIAG_FAULT)
1794 mpi3mr_set_diagsave(mrioc);
1795 writel(host_diagnostic | reset_type,
1796 &mrioc->sysif_regs->host_diagnostic);
1797 switch (reset_type) {
1798 case MPI3_SYSIF_HOST_DIAG_RESET_ACTION_SOFT_RESET:
1799 do {
1800 ioc_status = readl(&mrioc->sysif_regs->ioc_status);
1801 ioc_config =
1802 readl(&mrioc->sysif_regs->ioc_configuration);
1803 if ((ioc_status & MPI3_SYSIF_IOC_STATUS_RESET_HISTORY)
1804 && mpi3mr_soft_reset_success(ioc_status, ioc_config)
1805 ) {
1806 mpi3mr_clear_reset_history(mrioc);
1807 retval = 0;
1808 break;
1809 }
1810 msleep(100);
1811 } while (--timeout);
1812 mpi3mr_print_fault_info(mrioc);
1813 break;
1814 case MPI3_SYSIF_HOST_DIAG_RESET_ACTION_DIAG_FAULT:
1815 do {
1816 ioc_status = readl(&mrioc->sysif_regs->ioc_status);
1817 if (mpi3mr_diagfault_success(mrioc, ioc_status)) {
1818 retval = 0;
1819 break;
1820 }
1821 msleep(100);
1822 } while (--timeout);
1823 break;
1824 default:
1825 break;
1826 }
1827
1828 writel(MPI3_SYSIF_WRITE_SEQUENCE_KEY_VALUE_2ND,
1829 &mrioc->sysif_regs->write_sequence);
1830
1831 ioc_config = readl(&mrioc->sysif_regs->ioc_configuration);
1832 ioc_status = readl(&mrioc->sysif_regs->ioc_status);
1833 ioc_info(mrioc,
1834 "ioc_status/ioc_config after %s reset is (0x%08x)/(0x%08x)\n",
1835 (!retval)?"successful":"failed", ioc_status,
1836 ioc_config);
1837 if (retval)
1838 mrioc->unrecoverable = 1;
1839 return retval;
1840 }
1841
1842 /**
1843 * mpi3mr_admin_request_post - Post request to admin queue
1844 * @mrioc: Adapter reference
1845 * @admin_req: MPI3 request
1846 * @admin_req_sz: Request size
1847 * @ignore_reset: Ignore reset in process
1848 *
1849 * Post the MPI3 request into admin request queue and
1850 * inform the controller, if the queue is full return
1851 * appropriate error.
1852 *
1853 * Return: 0 on success, non-zero on failure.
1854 */
mpi3mr_admin_request_post(struct mpi3mr_ioc * mrioc,void * admin_req,u16 admin_req_sz,u8 ignore_reset)1855 int mpi3mr_admin_request_post(struct mpi3mr_ioc *mrioc, void *admin_req,
1856 u16 admin_req_sz, u8 ignore_reset)
1857 {
1858 u16 areq_pi = 0, areq_ci = 0, max_entries = 0;
1859 int retval = 0;
1860 unsigned long flags;
1861 u8 *areq_entry;
1862
1863 if (mrioc->unrecoverable) {
1864 ioc_err(mrioc, "%s : Unrecoverable controller\n", __func__);
1865 return -EFAULT;
1866 }
1867
1868 spin_lock_irqsave(&mrioc->admin_req_lock, flags);
1869 areq_pi = mrioc->admin_req_pi;
1870 areq_ci = mrioc->admin_req_ci;
1871 max_entries = mrioc->num_admin_req;
1872 if ((areq_ci == (areq_pi + 1)) || ((!areq_ci) &&
1873 (areq_pi == (max_entries - 1)))) {
1874 ioc_err(mrioc, "AdminReqQ full condition detected\n");
1875 retval = -EAGAIN;
1876 goto out;
1877 }
1878 if (!ignore_reset && mrioc->reset_in_progress) {
1879 ioc_err(mrioc, "AdminReqQ submit reset in progress\n");
1880 retval = -EAGAIN;
1881 goto out;
1882 }
1883 if (mrioc->pci_err_recovery) {
1884 ioc_err(mrioc, "admin request queue submission failed due to pci error recovery in progress\n");
1885 retval = -EAGAIN;
1886 goto out;
1887 }
1888
1889 areq_entry = (u8 *)mrioc->admin_req_base +
1890 (areq_pi * MPI3MR_ADMIN_REQ_FRAME_SZ);
1891 memset(areq_entry, 0, MPI3MR_ADMIN_REQ_FRAME_SZ);
1892 memcpy(areq_entry, (u8 *)admin_req, admin_req_sz);
1893
1894 if (++areq_pi == max_entries)
1895 areq_pi = 0;
1896 mrioc->admin_req_pi = areq_pi;
1897
1898 writel(mrioc->admin_req_pi, &mrioc->sysif_regs->admin_request_queue_pi);
1899
1900 out:
1901 spin_unlock_irqrestore(&mrioc->admin_req_lock, flags);
1902
1903 return retval;
1904 }
1905
1906 /**
1907 * mpi3mr_free_op_req_q_segments - free request memory segments
1908 * @mrioc: Adapter instance reference
1909 * @q_idx: operational request queue index
1910 *
1911 * Free memory segments allocated for operational request queue
1912 *
1913 * Return: Nothing.
1914 */
mpi3mr_free_op_req_q_segments(struct mpi3mr_ioc * mrioc,u16 q_idx)1915 static void mpi3mr_free_op_req_q_segments(struct mpi3mr_ioc *mrioc, u16 q_idx)
1916 {
1917 u16 j;
1918 int size;
1919 struct segments *segments;
1920
1921 segments = mrioc->req_qinfo[q_idx].q_segments;
1922 if (!segments)
1923 return;
1924
1925 if (mrioc->enable_segqueue) {
1926 size = MPI3MR_OP_REQ_Q_SEG_SIZE;
1927 if (mrioc->req_qinfo[q_idx].q_segment_list) {
1928 dma_free_coherent(&mrioc->pdev->dev,
1929 MPI3MR_MAX_SEG_LIST_SIZE,
1930 mrioc->req_qinfo[q_idx].q_segment_list,
1931 mrioc->req_qinfo[q_idx].q_segment_list_dma);
1932 mrioc->req_qinfo[q_idx].q_segment_list = NULL;
1933 }
1934 } else
1935 size = mrioc->req_qinfo[q_idx].segment_qd *
1936 mrioc->facts.op_req_sz;
1937
1938 for (j = 0; j < mrioc->req_qinfo[q_idx].num_segments; j++) {
1939 if (!segments[j].segment)
1940 continue;
1941 dma_free_coherent(&mrioc->pdev->dev,
1942 size, segments[j].segment, segments[j].segment_dma);
1943 segments[j].segment = NULL;
1944 }
1945 kfree(mrioc->req_qinfo[q_idx].q_segments);
1946 mrioc->req_qinfo[q_idx].q_segments = NULL;
1947 mrioc->req_qinfo[q_idx].qid = 0;
1948 }
1949
1950 /**
1951 * mpi3mr_free_op_reply_q_segments - free reply memory segments
1952 * @mrioc: Adapter instance reference
1953 * @q_idx: operational reply queue index
1954 *
1955 * Free memory segments allocated for operational reply queue
1956 *
1957 * Return: Nothing.
1958 */
mpi3mr_free_op_reply_q_segments(struct mpi3mr_ioc * mrioc,u16 q_idx)1959 static void mpi3mr_free_op_reply_q_segments(struct mpi3mr_ioc *mrioc, u16 q_idx)
1960 {
1961 u16 j;
1962 int size;
1963 struct segments *segments;
1964
1965 segments = mrioc->op_reply_qinfo[q_idx].q_segments;
1966 if (!segments)
1967 return;
1968
1969 if (mrioc->enable_segqueue) {
1970 size = MPI3MR_OP_REP_Q_SEG_SIZE;
1971 if (mrioc->op_reply_qinfo[q_idx].q_segment_list) {
1972 dma_free_coherent(&mrioc->pdev->dev,
1973 MPI3MR_MAX_SEG_LIST_SIZE,
1974 mrioc->op_reply_qinfo[q_idx].q_segment_list,
1975 mrioc->op_reply_qinfo[q_idx].q_segment_list_dma);
1976 mrioc->op_reply_qinfo[q_idx].q_segment_list = NULL;
1977 }
1978 } else
1979 size = mrioc->op_reply_qinfo[q_idx].segment_qd *
1980 mrioc->op_reply_desc_sz;
1981
1982 for (j = 0; j < mrioc->op_reply_qinfo[q_idx].num_segments; j++) {
1983 if (!segments[j].segment)
1984 continue;
1985 dma_free_coherent(&mrioc->pdev->dev,
1986 size, segments[j].segment, segments[j].segment_dma);
1987 segments[j].segment = NULL;
1988 }
1989
1990 kfree(mrioc->op_reply_qinfo[q_idx].q_segments);
1991 mrioc->op_reply_qinfo[q_idx].q_segments = NULL;
1992 mrioc->op_reply_qinfo[q_idx].qid = 0;
1993 }
1994
1995 /**
1996 * mpi3mr_delete_op_reply_q - delete operational reply queue
1997 * @mrioc: Adapter instance reference
1998 * @qidx: operational reply queue index
1999 *
2000 * Delete operatinal reply queue by issuing MPI request
2001 * through admin queue.
2002 *
2003 * Return: 0 on success, non-zero on failure.
2004 */
mpi3mr_delete_op_reply_q(struct mpi3mr_ioc * mrioc,u16 qidx)2005 static int mpi3mr_delete_op_reply_q(struct mpi3mr_ioc *mrioc, u16 qidx)
2006 {
2007 struct mpi3_delete_reply_queue_request delq_req;
2008 struct op_reply_qinfo *op_reply_q = mrioc->op_reply_qinfo + qidx;
2009 int retval = 0;
2010 u16 reply_qid = 0, midx;
2011
2012 reply_qid = op_reply_q->qid;
2013
2014 midx = REPLY_QUEUE_IDX_TO_MSIX_IDX(qidx, mrioc->op_reply_q_offset);
2015
2016 if (!reply_qid) {
2017 retval = -1;
2018 ioc_err(mrioc, "Issue DelRepQ: called with invalid ReqQID\n");
2019 goto out;
2020 }
2021
2022 (op_reply_q->qtype == MPI3MR_DEFAULT_QUEUE) ? mrioc->default_qcount-- :
2023 mrioc->active_poll_qcount--;
2024
2025 memset(&delq_req, 0, sizeof(delq_req));
2026 mutex_lock(&mrioc->init_cmds.mutex);
2027 if (mrioc->init_cmds.state & MPI3MR_CMD_PENDING) {
2028 retval = -1;
2029 ioc_err(mrioc, "Issue DelRepQ: Init command is in use\n");
2030 mutex_unlock(&mrioc->init_cmds.mutex);
2031 goto out;
2032 }
2033 mrioc->init_cmds.state = MPI3MR_CMD_PENDING;
2034 mrioc->init_cmds.is_waiting = 1;
2035 mrioc->init_cmds.callback = NULL;
2036 delq_req.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_INITCMDS);
2037 delq_req.function = MPI3_FUNCTION_DELETE_REPLY_QUEUE;
2038 delq_req.queue_id = cpu_to_le16(reply_qid);
2039
2040 init_completion(&mrioc->init_cmds.done);
2041 retval = mpi3mr_admin_request_post(mrioc, &delq_req, sizeof(delq_req),
2042 1);
2043 if (retval) {
2044 ioc_err(mrioc, "Issue DelRepQ: Admin Post failed\n");
2045 goto out_unlock;
2046 }
2047 wait_for_completion_timeout(&mrioc->init_cmds.done,
2048 (MPI3MR_INTADMCMD_TIMEOUT * HZ));
2049 if (!(mrioc->init_cmds.state & MPI3MR_CMD_COMPLETE)) {
2050 ioc_err(mrioc, "delete reply queue timed out\n");
2051 mpi3mr_check_rh_fault_ioc(mrioc,
2052 MPI3MR_RESET_FROM_DELREPQ_TIMEOUT);
2053 retval = -1;
2054 goto out_unlock;
2055 }
2056 if ((mrioc->init_cmds.ioc_status & MPI3_IOCSTATUS_STATUS_MASK)
2057 != MPI3_IOCSTATUS_SUCCESS) {
2058 ioc_err(mrioc,
2059 "Issue DelRepQ: Failed ioc_status(0x%04x) Loginfo(0x%08x)\n",
2060 (mrioc->init_cmds.ioc_status & MPI3_IOCSTATUS_STATUS_MASK),
2061 mrioc->init_cmds.ioc_loginfo);
2062 retval = -1;
2063 goto out_unlock;
2064 }
2065 mrioc->intr_info[midx].op_reply_q = NULL;
2066
2067 mpi3mr_free_op_reply_q_segments(mrioc, qidx);
2068 out_unlock:
2069 mrioc->init_cmds.state = MPI3MR_CMD_NOTUSED;
2070 mutex_unlock(&mrioc->init_cmds.mutex);
2071 out:
2072
2073 return retval;
2074 }
2075
2076 /**
2077 * mpi3mr_alloc_op_reply_q_segments -Alloc segmented reply pool
2078 * @mrioc: Adapter instance reference
2079 * @qidx: request queue index
2080 *
2081 * Allocate segmented memory pools for operational reply
2082 * queue.
2083 *
2084 * Return: 0 on success, non-zero on failure.
2085 */
mpi3mr_alloc_op_reply_q_segments(struct mpi3mr_ioc * mrioc,u16 qidx)2086 static int mpi3mr_alloc_op_reply_q_segments(struct mpi3mr_ioc *mrioc, u16 qidx)
2087 {
2088 struct op_reply_qinfo *op_reply_q = mrioc->op_reply_qinfo + qidx;
2089 int i, size;
2090 u64 *q_segment_list_entry = NULL;
2091 struct segments *segments;
2092
2093 if (mrioc->enable_segqueue) {
2094 op_reply_q->segment_qd =
2095 MPI3MR_OP_REP_Q_SEG_SIZE / mrioc->op_reply_desc_sz;
2096
2097 size = MPI3MR_OP_REP_Q_SEG_SIZE;
2098
2099 op_reply_q->q_segment_list = dma_alloc_coherent(&mrioc->pdev->dev,
2100 MPI3MR_MAX_SEG_LIST_SIZE, &op_reply_q->q_segment_list_dma,
2101 GFP_KERNEL);
2102 if (!op_reply_q->q_segment_list)
2103 return -ENOMEM;
2104 q_segment_list_entry = (u64 *)op_reply_q->q_segment_list;
2105 } else {
2106 op_reply_q->segment_qd = op_reply_q->num_replies;
2107 size = op_reply_q->num_replies * mrioc->op_reply_desc_sz;
2108 }
2109
2110 op_reply_q->num_segments = DIV_ROUND_UP(op_reply_q->num_replies,
2111 op_reply_q->segment_qd);
2112
2113 op_reply_q->q_segments = kzalloc_objs(struct segments,
2114 op_reply_q->num_segments);
2115 if (!op_reply_q->q_segments)
2116 return -ENOMEM;
2117
2118 segments = op_reply_q->q_segments;
2119 for (i = 0; i < op_reply_q->num_segments; i++) {
2120 segments[i].segment =
2121 dma_alloc_coherent(&mrioc->pdev->dev,
2122 size, &segments[i].segment_dma, GFP_KERNEL);
2123 if (!segments[i].segment)
2124 return -ENOMEM;
2125 if (mrioc->enable_segqueue)
2126 q_segment_list_entry[i] =
2127 (unsigned long)segments[i].segment_dma;
2128 }
2129
2130 return 0;
2131 }
2132
2133 /**
2134 * mpi3mr_alloc_op_req_q_segments - Alloc segmented req pool.
2135 * @mrioc: Adapter instance reference
2136 * @qidx: request queue index
2137 *
2138 * Allocate segmented memory pools for operational request
2139 * queue.
2140 *
2141 * Return: 0 on success, non-zero on failure.
2142 */
mpi3mr_alloc_op_req_q_segments(struct mpi3mr_ioc * mrioc,u16 qidx)2143 static int mpi3mr_alloc_op_req_q_segments(struct mpi3mr_ioc *mrioc, u16 qidx)
2144 {
2145 struct op_req_qinfo *op_req_q = mrioc->req_qinfo + qidx;
2146 int i, size;
2147 u64 *q_segment_list_entry = NULL;
2148 struct segments *segments;
2149
2150 if (mrioc->enable_segqueue) {
2151 op_req_q->segment_qd =
2152 MPI3MR_OP_REQ_Q_SEG_SIZE / mrioc->facts.op_req_sz;
2153
2154 size = MPI3MR_OP_REQ_Q_SEG_SIZE;
2155
2156 op_req_q->q_segment_list = dma_alloc_coherent(&mrioc->pdev->dev,
2157 MPI3MR_MAX_SEG_LIST_SIZE, &op_req_q->q_segment_list_dma,
2158 GFP_KERNEL);
2159 if (!op_req_q->q_segment_list)
2160 return -ENOMEM;
2161 q_segment_list_entry = (u64 *)op_req_q->q_segment_list;
2162
2163 } else {
2164 op_req_q->segment_qd = op_req_q->num_requests;
2165 size = op_req_q->num_requests * mrioc->facts.op_req_sz;
2166 }
2167
2168 op_req_q->num_segments = DIV_ROUND_UP(op_req_q->num_requests,
2169 op_req_q->segment_qd);
2170
2171 op_req_q->q_segments = kzalloc_objs(struct segments,
2172 op_req_q->num_segments);
2173 if (!op_req_q->q_segments)
2174 return -ENOMEM;
2175
2176 segments = op_req_q->q_segments;
2177 for (i = 0; i < op_req_q->num_segments; i++) {
2178 segments[i].segment =
2179 dma_alloc_coherent(&mrioc->pdev->dev,
2180 size, &segments[i].segment_dma, GFP_KERNEL);
2181 if (!segments[i].segment)
2182 return -ENOMEM;
2183 if (mrioc->enable_segqueue)
2184 q_segment_list_entry[i] =
2185 (unsigned long)segments[i].segment_dma;
2186 }
2187
2188 return 0;
2189 }
2190
2191 /**
2192 * mpi3mr_create_op_reply_q - create operational reply queue
2193 * @mrioc: Adapter instance reference
2194 * @qidx: operational reply queue index
2195 *
2196 * Create operatinal reply queue by issuing MPI request
2197 * through admin queue.
2198 *
2199 * Return: 0 on success, non-zero on failure.
2200 */
mpi3mr_create_op_reply_q(struct mpi3mr_ioc * mrioc,u16 qidx)2201 static int mpi3mr_create_op_reply_q(struct mpi3mr_ioc *mrioc, u16 qidx)
2202 {
2203 struct mpi3_create_reply_queue_request create_req;
2204 struct op_reply_qinfo *op_reply_q = mrioc->op_reply_qinfo + qidx;
2205 int retval = 0;
2206 u16 reply_qid = 0, midx;
2207
2208 reply_qid = op_reply_q->qid;
2209
2210 midx = REPLY_QUEUE_IDX_TO_MSIX_IDX(qidx, mrioc->op_reply_q_offset);
2211
2212 if (reply_qid) {
2213 retval = -1;
2214 ioc_err(mrioc, "CreateRepQ: called for duplicate qid %d\n",
2215 reply_qid);
2216
2217 return retval;
2218 }
2219
2220 reply_qid = qidx + 1;
2221
2222 if (mrioc->pdev->device == MPI3_MFGPAGE_DEVID_SAS4116) {
2223 if (mrioc->pdev->revision)
2224 op_reply_q->num_replies = MPI3MR_OP_REP_Q_QD;
2225 else
2226 op_reply_q->num_replies = MPI3MR_OP_REP_Q_QD4K;
2227 } else
2228 op_reply_q->num_replies = MPI3MR_OP_REP_Q_QD2K;
2229
2230 op_reply_q->ci = 0;
2231 op_reply_q->ephase = 1;
2232 atomic_set(&op_reply_q->pend_ios, 0);
2233 atomic_set(&op_reply_q->in_use, 0);
2234 op_reply_q->enable_irq_poll = false;
2235 op_reply_q->qfull_watermark =
2236 op_reply_q->num_replies - (MPI3MR_THRESHOLD_REPLY_COUNT * 2);
2237
2238 if (!op_reply_q->q_segments) {
2239 retval = mpi3mr_alloc_op_reply_q_segments(mrioc, qidx);
2240 if (retval) {
2241 mpi3mr_free_op_reply_q_segments(mrioc, qidx);
2242 goto out;
2243 }
2244 }
2245
2246 memset(&create_req, 0, sizeof(create_req));
2247 mutex_lock(&mrioc->init_cmds.mutex);
2248 if (mrioc->init_cmds.state & MPI3MR_CMD_PENDING) {
2249 retval = -1;
2250 ioc_err(mrioc, "CreateRepQ: Init command is in use\n");
2251 goto out_unlock;
2252 }
2253 mrioc->init_cmds.state = MPI3MR_CMD_PENDING;
2254 mrioc->init_cmds.is_waiting = 1;
2255 mrioc->init_cmds.callback = NULL;
2256 create_req.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_INITCMDS);
2257 create_req.function = MPI3_FUNCTION_CREATE_REPLY_QUEUE;
2258 create_req.queue_id = cpu_to_le16(reply_qid);
2259
2260 if (midx < (mrioc->intr_info_count - mrioc->requested_poll_qcount))
2261 op_reply_q->qtype = MPI3MR_DEFAULT_QUEUE;
2262 else
2263 op_reply_q->qtype = MPI3MR_POLL_QUEUE;
2264
2265 if (op_reply_q->qtype == MPI3MR_DEFAULT_QUEUE) {
2266 create_req.flags =
2267 MPI3_CREATE_REPLY_QUEUE_FLAGS_INT_ENABLE_ENABLE;
2268 create_req.msix_index =
2269 cpu_to_le16(mrioc->intr_info[midx].msix_index);
2270 } else {
2271 create_req.msix_index = cpu_to_le16(mrioc->intr_info_count - 1);
2272 ioc_info(mrioc, "create reply queue(polled): for qid(%d), midx(%d)\n",
2273 reply_qid, midx);
2274 if (!mrioc->active_poll_qcount)
2275 disable_irq_nosync(pci_irq_vector(mrioc->pdev,
2276 mrioc->intr_info_count - 1));
2277 }
2278
2279 if (mrioc->enable_segqueue) {
2280 create_req.flags |=
2281 MPI3_CREATE_REQUEST_QUEUE_FLAGS_SEGMENTED_SEGMENTED;
2282 create_req.base_address = cpu_to_le64(
2283 op_reply_q->q_segment_list_dma);
2284 } else
2285 create_req.base_address = cpu_to_le64(
2286 op_reply_q->q_segments[0].segment_dma);
2287
2288 create_req.size = cpu_to_le16(op_reply_q->num_replies);
2289
2290 init_completion(&mrioc->init_cmds.done);
2291 retval = mpi3mr_admin_request_post(mrioc, &create_req,
2292 sizeof(create_req), 1);
2293 if (retval) {
2294 ioc_err(mrioc, "CreateRepQ: Admin Post failed\n");
2295 goto out_unlock;
2296 }
2297 wait_for_completion_timeout(&mrioc->init_cmds.done,
2298 (MPI3MR_INTADMCMD_TIMEOUT * HZ));
2299 if (!(mrioc->init_cmds.state & MPI3MR_CMD_COMPLETE)) {
2300 ioc_err(mrioc, "create reply queue timed out\n");
2301 mpi3mr_check_rh_fault_ioc(mrioc,
2302 MPI3MR_RESET_FROM_CREATEREPQ_TIMEOUT);
2303 retval = -1;
2304 goto out_unlock;
2305 }
2306 if ((mrioc->init_cmds.ioc_status & MPI3_IOCSTATUS_STATUS_MASK)
2307 != MPI3_IOCSTATUS_SUCCESS) {
2308 ioc_err(mrioc,
2309 "CreateRepQ: Failed ioc_status(0x%04x) Loginfo(0x%08x)\n",
2310 (mrioc->init_cmds.ioc_status & MPI3_IOCSTATUS_STATUS_MASK),
2311 mrioc->init_cmds.ioc_loginfo);
2312 retval = -1;
2313 goto out_unlock;
2314 }
2315 op_reply_q->qid = reply_qid;
2316 if (midx < mrioc->intr_info_count)
2317 mrioc->intr_info[midx].op_reply_q = op_reply_q;
2318
2319 (op_reply_q->qtype == MPI3MR_DEFAULT_QUEUE) ? mrioc->default_qcount++ :
2320 mrioc->active_poll_qcount++;
2321
2322 out_unlock:
2323 mrioc->init_cmds.state = MPI3MR_CMD_NOTUSED;
2324 mutex_unlock(&mrioc->init_cmds.mutex);
2325 out:
2326
2327 return retval;
2328 }
2329
2330 /**
2331 * mpi3mr_create_op_req_q - create operational request queue
2332 * @mrioc: Adapter instance reference
2333 * @idx: operational request queue index
2334 * @reply_qid: Reply queue ID
2335 *
2336 * Create operatinal request queue by issuing MPI request
2337 * through admin queue.
2338 *
2339 * Return: 0 on success, non-zero on failure.
2340 */
mpi3mr_create_op_req_q(struct mpi3mr_ioc * mrioc,u16 idx,u16 reply_qid)2341 static int mpi3mr_create_op_req_q(struct mpi3mr_ioc *mrioc, u16 idx,
2342 u16 reply_qid)
2343 {
2344 struct mpi3_create_request_queue_request create_req;
2345 struct op_req_qinfo *op_req_q = mrioc->req_qinfo + idx;
2346 int retval = 0;
2347 u16 req_qid = 0;
2348
2349 req_qid = op_req_q->qid;
2350
2351 if (req_qid) {
2352 retval = -1;
2353 ioc_err(mrioc, "CreateReqQ: called for duplicate qid %d\n",
2354 req_qid);
2355
2356 return retval;
2357 }
2358 req_qid = idx + 1;
2359
2360 op_req_q->num_requests = MPI3MR_OP_REQ_Q_QD;
2361 op_req_q->ci = 0;
2362 op_req_q->pi = 0;
2363 op_req_q->reply_qid = reply_qid;
2364 spin_lock_init(&op_req_q->q_lock);
2365
2366 if (!op_req_q->q_segments) {
2367 retval = mpi3mr_alloc_op_req_q_segments(mrioc, idx);
2368 if (retval) {
2369 mpi3mr_free_op_req_q_segments(mrioc, idx);
2370 goto out;
2371 }
2372 }
2373
2374 memset(&create_req, 0, sizeof(create_req));
2375 mutex_lock(&mrioc->init_cmds.mutex);
2376 if (mrioc->init_cmds.state & MPI3MR_CMD_PENDING) {
2377 retval = -1;
2378 ioc_err(mrioc, "CreateReqQ: Init command is in use\n");
2379 goto out_unlock;
2380 }
2381 mrioc->init_cmds.state = MPI3MR_CMD_PENDING;
2382 mrioc->init_cmds.is_waiting = 1;
2383 mrioc->init_cmds.callback = NULL;
2384 create_req.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_INITCMDS);
2385 create_req.function = MPI3_FUNCTION_CREATE_REQUEST_QUEUE;
2386 create_req.queue_id = cpu_to_le16(req_qid);
2387 if (mrioc->enable_segqueue) {
2388 create_req.flags =
2389 MPI3_CREATE_REQUEST_QUEUE_FLAGS_SEGMENTED_SEGMENTED;
2390 create_req.base_address = cpu_to_le64(
2391 op_req_q->q_segment_list_dma);
2392 } else
2393 create_req.base_address = cpu_to_le64(
2394 op_req_q->q_segments[0].segment_dma);
2395 create_req.reply_queue_id = cpu_to_le16(reply_qid);
2396 create_req.size = cpu_to_le16(op_req_q->num_requests);
2397
2398 init_completion(&mrioc->init_cmds.done);
2399 retval = mpi3mr_admin_request_post(mrioc, &create_req,
2400 sizeof(create_req), 1);
2401 if (retval) {
2402 ioc_err(mrioc, "CreateReqQ: Admin Post failed\n");
2403 goto out_unlock;
2404 }
2405 wait_for_completion_timeout(&mrioc->init_cmds.done,
2406 (MPI3MR_INTADMCMD_TIMEOUT * HZ));
2407 if (!(mrioc->init_cmds.state & MPI3MR_CMD_COMPLETE)) {
2408 ioc_err(mrioc, "create request queue timed out\n");
2409 mpi3mr_check_rh_fault_ioc(mrioc,
2410 MPI3MR_RESET_FROM_CREATEREQQ_TIMEOUT);
2411 retval = -1;
2412 goto out_unlock;
2413 }
2414 if ((mrioc->init_cmds.ioc_status & MPI3_IOCSTATUS_STATUS_MASK)
2415 != MPI3_IOCSTATUS_SUCCESS) {
2416 ioc_err(mrioc,
2417 "CreateReqQ: Failed ioc_status(0x%04x) Loginfo(0x%08x)\n",
2418 (mrioc->init_cmds.ioc_status & MPI3_IOCSTATUS_STATUS_MASK),
2419 mrioc->init_cmds.ioc_loginfo);
2420 retval = -1;
2421 goto out_unlock;
2422 }
2423 op_req_q->qid = req_qid;
2424
2425 out_unlock:
2426 mrioc->init_cmds.state = MPI3MR_CMD_NOTUSED;
2427 mutex_unlock(&mrioc->init_cmds.mutex);
2428 out:
2429
2430 return retval;
2431 }
2432
2433 /**
2434 * mpi3mr_create_op_queues - create operational queue pairs
2435 * @mrioc: Adapter instance reference
2436 *
2437 * Allocate memory for operational queue meta data and call
2438 * create request and reply queue functions.
2439 *
2440 * Return: 0 on success, non-zero on failures.
2441 */
mpi3mr_create_op_queues(struct mpi3mr_ioc * mrioc)2442 static int mpi3mr_create_op_queues(struct mpi3mr_ioc *mrioc)
2443 {
2444 int retval = 0;
2445 u16 num_queues = 0, i = 0, msix_count_op_q = 1;
2446 u32 ioc_status;
2447 enum mpi3mr_iocstate ioc_state;
2448
2449 num_queues = min_t(int, mrioc->facts.max_op_reply_q,
2450 mrioc->facts.max_op_req_q);
2451
2452 msix_count_op_q =
2453 mrioc->intr_info_count - mrioc->op_reply_q_offset;
2454 if (!mrioc->num_queues)
2455 mrioc->num_queues = min_t(int, num_queues, msix_count_op_q);
2456 /*
2457 * During reset set the num_queues to the number of queues
2458 * that was set before the reset.
2459 */
2460 num_queues = mrioc->num_op_reply_q ?
2461 mrioc->num_op_reply_q : mrioc->num_queues;
2462 ioc_info(mrioc, "trying to create %d operational queue pairs\n",
2463 num_queues);
2464
2465 if (!mrioc->req_qinfo) {
2466 mrioc->req_qinfo = kzalloc_objs(struct op_req_qinfo, num_queues);
2467 if (!mrioc->req_qinfo) {
2468 retval = -1;
2469 goto out_failed;
2470 }
2471
2472 mrioc->op_reply_qinfo = kzalloc(sizeof(struct op_reply_qinfo) *
2473 num_queues, GFP_KERNEL);
2474 if (!mrioc->op_reply_qinfo) {
2475 retval = -1;
2476 goto out_failed;
2477 }
2478 }
2479
2480 if (mrioc->enable_segqueue)
2481 ioc_info(mrioc,
2482 "allocating operational queues through segmented queues\n");
2483
2484 for (i = 0; i < num_queues; i++) {
2485 if (mpi3mr_create_op_reply_q(mrioc, i)) {
2486 ioc_err(mrioc, "Cannot create OP RepQ %d\n", i);
2487 break;
2488 }
2489 if (mpi3mr_create_op_req_q(mrioc, i,
2490 mrioc->op_reply_qinfo[i].qid)) {
2491 ioc_err(mrioc, "Cannot create OP ReqQ %d\n", i);
2492 mpi3mr_delete_op_reply_q(mrioc, i);
2493 break;
2494 }
2495 }
2496
2497 if (i == 0) {
2498 /* Not even one queue is created successfully*/
2499 retval = -1;
2500 goto out_failed;
2501 }
2502 ioc_status = readl(&mrioc->sysif_regs->ioc_status);
2503 ioc_state = mpi3mr_get_iocstate(mrioc);
2504 if ((ioc_status & MPI3_SYSIF_IOC_STATUS_RESET_HISTORY) ||
2505 ioc_state != MRIOC_STATE_READY) {
2506 mpi3mr_print_fault_info(mrioc);
2507 retval = -1;
2508 goto out_failed;
2509 }
2510 mrioc->num_op_reply_q = mrioc->num_op_req_q = i;
2511 ioc_info(mrioc,
2512 "successfully created %d operational queue pairs(default/polled) queue = (%d/%d)\n",
2513 mrioc->num_op_reply_q, mrioc->default_qcount,
2514 mrioc->active_poll_qcount);
2515
2516 return retval;
2517 out_failed:
2518 kfree(mrioc->req_qinfo);
2519 mrioc->req_qinfo = NULL;
2520
2521 kfree(mrioc->op_reply_qinfo);
2522 mrioc->op_reply_qinfo = NULL;
2523
2524 return retval;
2525 }
2526
2527 /**
2528 * mpi3mr_op_request_post - Post request to operational queue
2529 * @mrioc: Adapter reference
2530 * @op_req_q: Operational request queue info
2531 * @req: MPI3 request
2532 *
2533 * Post the MPI3 request into operational request queue and
2534 * inform the controller, if the queue is full return
2535 * appropriate error.
2536 *
2537 * Return: 0 on success, non-zero on failure.
2538 */
mpi3mr_op_request_post(struct mpi3mr_ioc * mrioc,struct op_req_qinfo * op_req_q,u8 * req)2539 int mpi3mr_op_request_post(struct mpi3mr_ioc *mrioc,
2540 struct op_req_qinfo *op_req_q, u8 *req)
2541 {
2542 u16 pi = 0, max_entries, reply_qidx = 0, midx;
2543 int retval = 0;
2544 unsigned long flags;
2545 u8 *req_entry;
2546 void *segment_base_addr;
2547 u16 req_sz = mrioc->facts.op_req_sz;
2548 struct segments *segments = op_req_q->q_segments;
2549 struct op_reply_qinfo *op_reply_q = NULL;
2550
2551 reply_qidx = op_req_q->reply_qid - 1;
2552 op_reply_q = mrioc->op_reply_qinfo + reply_qidx;
2553
2554 if (mrioc->unrecoverable)
2555 return -EFAULT;
2556
2557 spin_lock_irqsave(&op_req_q->q_lock, flags);
2558 pi = op_req_q->pi;
2559 max_entries = op_req_q->num_requests;
2560
2561 if (mpi3mr_check_req_qfull(op_req_q)) {
2562 midx = REPLY_QUEUE_IDX_TO_MSIX_IDX(
2563 reply_qidx, mrioc->op_reply_q_offset);
2564 mpi3mr_process_op_reply_q(mrioc, mrioc->intr_info[midx].op_reply_q);
2565
2566 if (mpi3mr_check_req_qfull(op_req_q)) {
2567 retval = -EAGAIN;
2568 goto out;
2569 }
2570 }
2571
2572 if (mrioc->reset_in_progress) {
2573 ioc_err(mrioc, "OpReqQ submit reset in progress\n");
2574 retval = -EAGAIN;
2575 goto out;
2576 }
2577 if (mrioc->pci_err_recovery) {
2578 ioc_err(mrioc, "operational request queue submission failed due to pci error recovery in progress\n");
2579 retval = -EAGAIN;
2580 goto out;
2581 }
2582
2583 /* Reply queue is nearing to get full, push back IOs to SML */
2584 if ((mrioc->prevent_reply_qfull == true) &&
2585 (atomic_read(&op_reply_q->pend_ios) >
2586 (op_reply_q->qfull_watermark))) {
2587 atomic_inc(&mrioc->reply_qfull_count);
2588 retval = -EAGAIN;
2589 goto out;
2590 }
2591
2592 segment_base_addr = segments[pi / op_req_q->segment_qd].segment;
2593 req_entry = (u8 *)segment_base_addr +
2594 ((pi % op_req_q->segment_qd) * req_sz);
2595
2596 memset(req_entry, 0, req_sz);
2597 memcpy(req_entry, req, MPI3MR_ADMIN_REQ_FRAME_SZ);
2598
2599 if (++pi == max_entries)
2600 pi = 0;
2601 op_req_q->pi = pi;
2602
2603 #ifndef CONFIG_PREEMPT_RT
2604 if (atomic_inc_return(&mrioc->op_reply_qinfo[reply_qidx].pend_ios)
2605 > MPI3MR_IRQ_POLL_TRIGGER_IOCOUNT)
2606 mrioc->op_reply_qinfo[reply_qidx].enable_irq_poll = true;
2607 #else
2608 atomic_inc_return(&mrioc->op_reply_qinfo[reply_qidx].pend_ios);
2609 #endif
2610
2611 writel(op_req_q->pi,
2612 &mrioc->sysif_regs->oper_queue_indexes[reply_qidx].producer_index);
2613
2614 out:
2615 spin_unlock_irqrestore(&op_req_q->q_lock, flags);
2616 return retval;
2617 }
2618
2619 /**
2620 * mpi3mr_check_rh_fault_ioc - check reset history and fault
2621 * controller
2622 * @mrioc: Adapter instance reference
2623 * @reason_code: reason code for the fault.
2624 *
2625 * This routine will save snapdump and fault the controller with
2626 * the given reason code if it is not already in the fault or
2627 * not asynchronosuly reset. This will be used to handle
2628 * initilaization time faults/resets/timeout as in those cases
2629 * immediate soft reset invocation is not required.
2630 *
2631 * Return: None.
2632 */
mpi3mr_check_rh_fault_ioc(struct mpi3mr_ioc * mrioc,u32 reason_code)2633 void mpi3mr_check_rh_fault_ioc(struct mpi3mr_ioc *mrioc, u32 reason_code)
2634 {
2635 u32 ioc_status, host_diagnostic, timeout;
2636 union mpi3mr_trigger_data trigger_data;
2637
2638 if (mrioc->unrecoverable) {
2639 ioc_err(mrioc, "controller is unrecoverable\n");
2640 return;
2641 }
2642
2643 if (!pci_device_is_present(mrioc->pdev)) {
2644 mrioc->unrecoverable = 1;
2645 ioc_err(mrioc, "controller is not present\n");
2646 return;
2647 }
2648 memset(&trigger_data, 0, sizeof(trigger_data));
2649 ioc_status = readl(&mrioc->sysif_regs->ioc_status);
2650
2651 if (ioc_status & MPI3_SYSIF_IOC_STATUS_RESET_HISTORY) {
2652 mpi3mr_set_trigger_data_in_all_hdb(mrioc,
2653 MPI3MR_HDB_TRIGGER_TYPE_FW_RELEASED, NULL, 0);
2654 return;
2655 } else if (ioc_status & MPI3_SYSIF_IOC_STATUS_FAULT) {
2656 trigger_data.fault = (readl(&mrioc->sysif_regs->fault) &
2657 MPI3_SYSIF_FAULT_CODE_MASK);
2658
2659 mpi3mr_set_trigger_data_in_all_hdb(mrioc,
2660 MPI3MR_HDB_TRIGGER_TYPE_FAULT, &trigger_data, 0);
2661 mpi3mr_print_fault_info(mrioc);
2662 mpi3mr_save_fault_info(mrioc);
2663 mrioc->fault_during_init = 1;
2664 mrioc->fwfault_counter++;
2665 return;
2666 }
2667
2668 mpi3mr_set_diagsave(mrioc);
2669 mpi3mr_issue_reset(mrioc, MPI3_SYSIF_HOST_DIAG_RESET_ACTION_DIAG_FAULT,
2670 reason_code);
2671 trigger_data.fault = (readl(&mrioc->sysif_regs->fault) &
2672 MPI3_SYSIF_FAULT_CODE_MASK);
2673 mpi3mr_set_trigger_data_in_all_hdb(mrioc, MPI3MR_HDB_TRIGGER_TYPE_FAULT,
2674 &trigger_data, 0);
2675 timeout = MPI3_SYSIF_DIAG_SAVE_TIMEOUT * 10;
2676 do {
2677 host_diagnostic = readl(&mrioc->sysif_regs->host_diagnostic);
2678 if (!(host_diagnostic & MPI3_SYSIF_HOST_DIAG_SAVE_IN_PROGRESS))
2679 break;
2680 msleep(100);
2681 } while (--timeout);
2682
2683 mpi3mr_save_fault_info(mrioc);
2684 mrioc->fault_during_init = 1;
2685 mrioc->fwfault_counter++;
2686 }
2687
2688 /**
2689 * mpi3mr_sync_timestamp - Issue time stamp sync request
2690 * @mrioc: Adapter reference
2691 *
2692 * Issue IO unit control MPI request to synchornize firmware
2693 * timestamp with host time.
2694 *
2695 * Return: 0 on success, non-zero on failure.
2696 */
mpi3mr_sync_timestamp(struct mpi3mr_ioc * mrioc)2697 static int mpi3mr_sync_timestamp(struct mpi3mr_ioc *mrioc)
2698 {
2699 ktime_t current_time;
2700 struct mpi3_iounit_control_request iou_ctrl;
2701 int retval = 0;
2702
2703 memset(&iou_ctrl, 0, sizeof(iou_ctrl));
2704 mutex_lock(&mrioc->init_cmds.mutex);
2705 if (mrioc->init_cmds.state & MPI3MR_CMD_PENDING) {
2706 retval = -1;
2707 ioc_err(mrioc, "Issue IOUCTL time_stamp: command is in use\n");
2708 mutex_unlock(&mrioc->init_cmds.mutex);
2709 goto out;
2710 }
2711 mrioc->init_cmds.state = MPI3MR_CMD_PENDING;
2712 mrioc->init_cmds.is_waiting = 1;
2713 mrioc->init_cmds.callback = NULL;
2714 iou_ctrl.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_INITCMDS);
2715 iou_ctrl.function = MPI3_FUNCTION_IO_UNIT_CONTROL;
2716 iou_ctrl.operation = MPI3_CTRL_OP_UPDATE_TIMESTAMP;
2717 current_time = ktime_get_real();
2718 iou_ctrl.param64[0] = cpu_to_le64(ktime_to_ms(current_time));
2719
2720 init_completion(&mrioc->init_cmds.done);
2721 retval = mpi3mr_admin_request_post(mrioc, &iou_ctrl,
2722 sizeof(iou_ctrl), 0);
2723 if (retval) {
2724 ioc_err(mrioc, "Issue IOUCTL time_stamp: Admin Post failed\n");
2725 goto out_unlock;
2726 }
2727
2728 wait_for_completion_timeout(&mrioc->init_cmds.done,
2729 (MPI3MR_INTADMCMD_TIMEOUT * HZ));
2730 if (!(mrioc->init_cmds.state & MPI3MR_CMD_COMPLETE)) {
2731 ioc_err(mrioc, "Issue IOUCTL time_stamp: command timed out\n");
2732 mrioc->init_cmds.is_waiting = 0;
2733 if (!(mrioc->init_cmds.state & MPI3MR_CMD_RESET))
2734 mpi3mr_check_rh_fault_ioc(mrioc,
2735 MPI3MR_RESET_FROM_TSU_TIMEOUT);
2736 retval = -1;
2737 goto out_unlock;
2738 }
2739 if ((mrioc->init_cmds.ioc_status & MPI3_IOCSTATUS_STATUS_MASK)
2740 != MPI3_IOCSTATUS_SUCCESS) {
2741 ioc_err(mrioc,
2742 "Issue IOUCTL time_stamp: Failed ioc_status(0x%04x) Loginfo(0x%08x)\n",
2743 (mrioc->init_cmds.ioc_status & MPI3_IOCSTATUS_STATUS_MASK),
2744 mrioc->init_cmds.ioc_loginfo);
2745 retval = -1;
2746 goto out_unlock;
2747 }
2748
2749 out_unlock:
2750 mrioc->init_cmds.state = MPI3MR_CMD_NOTUSED;
2751 mutex_unlock(&mrioc->init_cmds.mutex);
2752
2753 out:
2754 return retval;
2755 }
2756
2757 /**
2758 * mpi3mr_print_pkg_ver - display controller fw package version
2759 * @mrioc: Adapter reference
2760 *
2761 * Retrieve firmware package version from the component image
2762 * header of the controller flash and display it.
2763 *
2764 * Return: 0 on success and non-zero on failure.
2765 */
mpi3mr_print_pkg_ver(struct mpi3mr_ioc * mrioc)2766 static int mpi3mr_print_pkg_ver(struct mpi3mr_ioc *mrioc)
2767 {
2768 struct mpi3_ci_upload_request ci_upload;
2769 int retval = -1;
2770 void *data = NULL;
2771 dma_addr_t data_dma;
2772 struct mpi3_ci_manifest_mpi *manifest;
2773 u32 data_len = sizeof(struct mpi3_ci_manifest_mpi);
2774 u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
2775
2776 data = dma_alloc_coherent(&mrioc->pdev->dev, data_len, &data_dma,
2777 GFP_KERNEL);
2778 if (!data)
2779 return -ENOMEM;
2780
2781 memset(&ci_upload, 0, sizeof(ci_upload));
2782 mutex_lock(&mrioc->init_cmds.mutex);
2783 if (mrioc->init_cmds.state & MPI3MR_CMD_PENDING) {
2784 ioc_err(mrioc, "sending get package version failed due to command in use\n");
2785 mutex_unlock(&mrioc->init_cmds.mutex);
2786 goto out;
2787 }
2788 mrioc->init_cmds.state = MPI3MR_CMD_PENDING;
2789 mrioc->init_cmds.is_waiting = 1;
2790 mrioc->init_cmds.callback = NULL;
2791 ci_upload.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_INITCMDS);
2792 ci_upload.function = MPI3_FUNCTION_CI_UPLOAD;
2793 ci_upload.msg_flags = MPI3_CI_UPLOAD_MSGFLAGS_LOCATION_PRIMARY;
2794 ci_upload.signature1 = cpu_to_le32(MPI3_IMAGE_HEADER_SIGNATURE1_MANIFEST);
2795 ci_upload.image_offset = cpu_to_le32(MPI3_IMAGE_HEADER_SIZE);
2796 ci_upload.segment_size = cpu_to_le32(data_len);
2797
2798 mpi3mr_add_sg_single(&ci_upload.sgl, sgl_flags, data_len,
2799 data_dma);
2800 init_completion(&mrioc->init_cmds.done);
2801 retval = mpi3mr_admin_request_post(mrioc, &ci_upload,
2802 sizeof(ci_upload), 1);
2803 if (retval) {
2804 ioc_err(mrioc, "posting get package version failed\n");
2805 goto out_unlock;
2806 }
2807 wait_for_completion_timeout(&mrioc->init_cmds.done,
2808 (MPI3MR_INTADMCMD_TIMEOUT * HZ));
2809 if (!(mrioc->init_cmds.state & MPI3MR_CMD_COMPLETE)) {
2810 ioc_err(mrioc, "get package version timed out\n");
2811 mpi3mr_check_rh_fault_ioc(mrioc,
2812 MPI3MR_RESET_FROM_GETPKGVER_TIMEOUT);
2813 retval = -1;
2814 goto out_unlock;
2815 }
2816 if ((mrioc->init_cmds.ioc_status & MPI3_IOCSTATUS_STATUS_MASK)
2817 == MPI3_IOCSTATUS_SUCCESS) {
2818 manifest = (struct mpi3_ci_manifest_mpi *) data;
2819 if (manifest->manifest_type == MPI3_CI_MANIFEST_TYPE_MPI) {
2820 ioc_info(mrioc,
2821 "firmware package version(%d.%d.%d.%d.%05d-%05d)\n",
2822 manifest->package_version.gen_major,
2823 manifest->package_version.gen_minor,
2824 manifest->package_version.phase_major,
2825 manifest->package_version.phase_minor,
2826 manifest->package_version.customer_id,
2827 manifest->package_version.build_num);
2828 }
2829 }
2830 retval = 0;
2831 out_unlock:
2832 mrioc->init_cmds.state = MPI3MR_CMD_NOTUSED;
2833 mutex_unlock(&mrioc->init_cmds.mutex);
2834
2835 out:
2836 if (data)
2837 dma_free_coherent(&mrioc->pdev->dev, data_len, data,
2838 data_dma);
2839 return retval;
2840 }
2841
2842 /**
2843 * mpi3mr_watchdog_work - watchdog thread to monitor faults
2844 * @work: work struct
2845 *
2846 * Watch dog work periodically executed (1 second interval) to
2847 * monitor firmware fault and to issue periodic timer sync to
2848 * the firmware.
2849 *
2850 * Return: Nothing.
2851 */
mpi3mr_watchdog_work(struct work_struct * work)2852 static void mpi3mr_watchdog_work(struct work_struct *work)
2853 {
2854 struct mpi3mr_ioc *mrioc =
2855 container_of(work, struct mpi3mr_ioc, watchdog_work.work);
2856 unsigned long flags;
2857 enum mpi3mr_iocstate ioc_state;
2858 u32 host_diagnostic, ioc_status;
2859 union mpi3mr_trigger_data trigger_data;
2860 u16 reset_reason = MPI3MR_RESET_FROM_FAULT_WATCH;
2861
2862 if (mrioc->fault_during_init) {
2863 mpi3mr_fault_uevent_emit(mrioc);
2864 mrioc->fault_during_init = 0;
2865 }
2866
2867 if (mrioc->reset_in_progress || mrioc->pci_err_recovery)
2868 return;
2869
2870 if (!mrioc->unrecoverable && !pci_device_is_present(mrioc->pdev)) {
2871 ioc_err(mrioc, "watchdog could not detect the controller\n");
2872 mrioc->unrecoverable = 1;
2873 }
2874
2875 if (mrioc->unrecoverable) {
2876 ioc_err(mrioc,
2877 "flush pending commands for unrecoverable controller\n");
2878 mpi3mr_flush_cmds_for_unrecovered_controller(mrioc);
2879 return;
2880 }
2881
2882 if (atomic_read(&mrioc->admin_pend_isr)) {
2883 ioc_err(mrioc, "Unprocessed admin ISR instance found\n"
2884 "flush admin replies\n");
2885 mpi3mr_process_admin_reply_q(mrioc);
2886 }
2887
2888 if (!(mrioc->facts.ioc_capabilities &
2889 MPI3_IOCFACTS_CAPABILITY_NON_SUPERVISOR_IOC) &&
2890 (mrioc->ts_update_counter++ >= mrioc->ts_update_interval)) {
2891
2892 mrioc->ts_update_counter = 0;
2893 mpi3mr_sync_timestamp(mrioc);
2894 }
2895
2896 if ((mrioc->prepare_for_reset) &&
2897 ((mrioc->prepare_for_reset_timeout_counter++) >=
2898 MPI3MR_PREPARE_FOR_RESET_TIMEOUT)) {
2899 mpi3mr_soft_reset_handler(mrioc,
2900 MPI3MR_RESET_FROM_CIACTVRST_TIMER, 1);
2901 return;
2902 }
2903
2904 memset(&trigger_data, 0, sizeof(trigger_data));
2905 ioc_status = readl(&mrioc->sysif_regs->ioc_status);
2906 if (ioc_status & MPI3_SYSIF_IOC_STATUS_RESET_HISTORY) {
2907 mpi3mr_set_trigger_data_in_all_hdb(mrioc,
2908 MPI3MR_HDB_TRIGGER_TYPE_FW_RELEASED, NULL, 0);
2909 mpi3mr_soft_reset_handler(mrioc, MPI3MR_RESET_FROM_FIRMWARE, 0);
2910 return;
2911 }
2912
2913 /*Check for fault state every one second and issue Soft reset*/
2914 ioc_state = mpi3mr_get_iocstate(mrioc);
2915 if (ioc_state != MRIOC_STATE_FAULT)
2916 goto schedule_work;
2917
2918 trigger_data.fault = readl(&mrioc->sysif_regs->fault) & MPI3_SYSIF_FAULT_CODE_MASK;
2919 mpi3mr_set_trigger_data_in_all_hdb(mrioc,
2920 MPI3MR_HDB_TRIGGER_TYPE_FAULT, &trigger_data, 0);
2921 host_diagnostic = readl(&mrioc->sysif_regs->host_diagnostic);
2922 if (host_diagnostic & MPI3_SYSIF_HOST_DIAG_SAVE_IN_PROGRESS) {
2923 if (!mrioc->diagsave_timeout) {
2924 mpi3mr_print_fault_info(mrioc);
2925 ioc_warn(mrioc, "diag save in progress\n");
2926 }
2927 if ((mrioc->diagsave_timeout++) <= MPI3_SYSIF_DIAG_SAVE_TIMEOUT)
2928 goto schedule_work;
2929 }
2930
2931 mpi3mr_print_fault_info(mrioc);
2932 mrioc->diagsave_timeout = 0;
2933
2934 if (!mpi3mr_is_fault_recoverable(mrioc)) {
2935 mrioc->unrecoverable = 1;
2936 goto schedule_work;
2937 }
2938
2939 mpi3mr_save_fault_info(mrioc);
2940 mpi3mr_fault_uevent_emit(mrioc);
2941 mrioc->fwfault_counter++;
2942
2943 switch (trigger_data.fault) {
2944 case MPI3_SYSIF_FAULT_CODE_COMPLETE_RESET_NEEDED:
2945 case MPI3_SYSIF_FAULT_CODE_POWER_CYCLE_REQUIRED:
2946 ioc_warn(mrioc,
2947 "controller requires system power cycle, marking controller as unrecoverable\n");
2948 mrioc->unrecoverable = 1;
2949 goto schedule_work;
2950 case MPI3_SYSIF_FAULT_CODE_SOFT_RESET_IN_PROGRESS:
2951 goto schedule_work;
2952 case MPI3_SYSIF_FAULT_CODE_CI_ACTIVATION_RESET:
2953 reset_reason = MPI3MR_RESET_FROM_CIACTIV_FAULT;
2954 break;
2955 default:
2956 break;
2957 }
2958 mpi3mr_soft_reset_handler(mrioc, reset_reason, 0);
2959 return;
2960
2961 schedule_work:
2962 spin_lock_irqsave(&mrioc->watchdog_lock, flags);
2963 if (mrioc->watchdog_work_q)
2964 queue_delayed_work(mrioc->watchdog_work_q,
2965 &mrioc->watchdog_work,
2966 msecs_to_jiffies(MPI3MR_WATCHDOG_INTERVAL));
2967 spin_unlock_irqrestore(&mrioc->watchdog_lock, flags);
2968 return;
2969 }
2970
2971 /**
2972 * mpi3mr_start_watchdog - Start watchdog
2973 * @mrioc: Adapter instance reference
2974 *
2975 * Create and start the watchdog thread to monitor controller
2976 * faults.
2977 *
2978 * Return: Nothing.
2979 */
mpi3mr_start_watchdog(struct mpi3mr_ioc * mrioc)2980 void mpi3mr_start_watchdog(struct mpi3mr_ioc *mrioc)
2981 {
2982 if (mrioc->watchdog_work_q)
2983 return;
2984
2985 INIT_DELAYED_WORK(&mrioc->watchdog_work, mpi3mr_watchdog_work);
2986 mrioc->watchdog_work_q = alloc_ordered_workqueue(
2987 "watchdog_%s%d", WQ_MEM_RECLAIM, mrioc->name, mrioc->id);
2988 if (!mrioc->watchdog_work_q) {
2989 ioc_err(mrioc, "%s: failed (line=%d)\n", __func__, __LINE__);
2990 return;
2991 }
2992
2993 if (mrioc->watchdog_work_q)
2994 queue_delayed_work(mrioc->watchdog_work_q,
2995 &mrioc->watchdog_work,
2996 msecs_to_jiffies(MPI3MR_WATCHDOG_INTERVAL));
2997 }
2998
2999 /**
3000 * mpi3mr_stop_watchdog - Stop watchdog
3001 * @mrioc: Adapter instance reference
3002 *
3003 * Stop the watchdog thread created to monitor controller
3004 * faults.
3005 *
3006 * Return: Nothing.
3007 */
mpi3mr_stop_watchdog(struct mpi3mr_ioc * mrioc)3008 void mpi3mr_stop_watchdog(struct mpi3mr_ioc *mrioc)
3009 {
3010 unsigned long flags;
3011 struct workqueue_struct *wq;
3012
3013 spin_lock_irqsave(&mrioc->watchdog_lock, flags);
3014 wq = mrioc->watchdog_work_q;
3015 mrioc->watchdog_work_q = NULL;
3016 spin_unlock_irqrestore(&mrioc->watchdog_lock, flags);
3017 if (wq) {
3018 if (!cancel_delayed_work_sync(&mrioc->watchdog_work))
3019 flush_workqueue(wq);
3020 destroy_workqueue(wq);
3021 }
3022 }
3023
3024 /**
3025 * mpi3mr_setup_admin_qpair - Setup admin queue pair
3026 * @mrioc: Adapter instance reference
3027 *
3028 * Allocate memory for admin queue pair if required and register
3029 * the admin queue with the controller.
3030 *
3031 * Return: 0 on success, non-zero on failures.
3032 */
mpi3mr_setup_admin_qpair(struct mpi3mr_ioc * mrioc)3033 static int mpi3mr_setup_admin_qpair(struct mpi3mr_ioc *mrioc)
3034 {
3035 int retval = 0;
3036 u32 num_admin_entries = 0;
3037
3038 mrioc->admin_req_q_sz = MPI3MR_ADMIN_REQ_Q_SIZE;
3039 mrioc->num_admin_req = mrioc->admin_req_q_sz /
3040 MPI3MR_ADMIN_REQ_FRAME_SZ;
3041 mrioc->admin_req_ci = mrioc->admin_req_pi = 0;
3042
3043 mrioc->admin_reply_q_sz = MPI3MR_ADMIN_REPLY_Q_SIZE;
3044 mrioc->num_admin_replies = mrioc->admin_reply_q_sz /
3045 MPI3MR_ADMIN_REPLY_FRAME_SZ;
3046 mrioc->admin_reply_ci = 0;
3047 mrioc->admin_reply_ephase = 1;
3048 atomic_set(&mrioc->admin_reply_q_in_use, 0);
3049 atomic_set(&mrioc->admin_pend_isr, 0);
3050
3051 if (!mrioc->admin_req_base) {
3052 mrioc->admin_req_base = dma_alloc_coherent(&mrioc->pdev->dev,
3053 mrioc->admin_req_q_sz, &mrioc->admin_req_dma, GFP_KERNEL);
3054
3055 if (!mrioc->admin_req_base) {
3056 retval = -1;
3057 goto out_failed;
3058 }
3059
3060 mrioc->admin_reply_base = dma_alloc_coherent(&mrioc->pdev->dev,
3061 mrioc->admin_reply_q_sz, &mrioc->admin_reply_dma,
3062 GFP_KERNEL);
3063
3064 if (!mrioc->admin_reply_base) {
3065 retval = -1;
3066 goto out_failed;
3067 }
3068 }
3069
3070 num_admin_entries = (mrioc->num_admin_replies << 16) |
3071 (mrioc->num_admin_req);
3072 writel(num_admin_entries, &mrioc->sysif_regs->admin_queue_num_entries);
3073 mpi3mr_writeq(mrioc->admin_req_dma,
3074 &mrioc->sysif_regs->admin_request_queue_address,
3075 &mrioc->adm_req_q_bar_writeq_lock);
3076 mpi3mr_writeq(mrioc->admin_reply_dma,
3077 &mrioc->sysif_regs->admin_reply_queue_address,
3078 &mrioc->adm_reply_q_bar_writeq_lock);
3079 writel(mrioc->admin_req_pi, &mrioc->sysif_regs->admin_request_queue_pi);
3080 writel(mrioc->admin_reply_ci, &mrioc->sysif_regs->admin_reply_queue_ci);
3081 return retval;
3082
3083 out_failed:
3084
3085 if (mrioc->admin_reply_base) {
3086 dma_free_coherent(&mrioc->pdev->dev, mrioc->admin_reply_q_sz,
3087 mrioc->admin_reply_base, mrioc->admin_reply_dma);
3088 mrioc->admin_reply_base = NULL;
3089 }
3090 if (mrioc->admin_req_base) {
3091 dma_free_coherent(&mrioc->pdev->dev, mrioc->admin_req_q_sz,
3092 mrioc->admin_req_base, mrioc->admin_req_dma);
3093 mrioc->admin_req_base = NULL;
3094 }
3095 return retval;
3096 }
3097
3098 /**
3099 * mpi3mr_issue_iocfacts - Send IOC Facts
3100 * @mrioc: Adapter instance reference
3101 * @facts_data: Cached IOC facts data
3102 *
3103 * Issue IOC Facts MPI request through admin queue and wait for
3104 * the completion of it or time out.
3105 *
3106 * Return: 0 on success, non-zero on failures.
3107 */
mpi3mr_issue_iocfacts(struct mpi3mr_ioc * mrioc,struct mpi3_ioc_facts_data * facts_data)3108 static int mpi3mr_issue_iocfacts(struct mpi3mr_ioc *mrioc,
3109 struct mpi3_ioc_facts_data *facts_data)
3110 {
3111 struct mpi3_ioc_facts_request iocfacts_req;
3112 void *data = NULL;
3113 dma_addr_t data_dma;
3114 u32 data_len = sizeof(*facts_data);
3115 int retval = 0;
3116 u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
3117
3118 data = dma_alloc_coherent(&mrioc->pdev->dev, data_len, &data_dma,
3119 GFP_KERNEL);
3120
3121 if (!data) {
3122 retval = -1;
3123 goto out;
3124 }
3125
3126 memset(&iocfacts_req, 0, sizeof(iocfacts_req));
3127 mutex_lock(&mrioc->init_cmds.mutex);
3128 if (mrioc->init_cmds.state & MPI3MR_CMD_PENDING) {
3129 retval = -1;
3130 ioc_err(mrioc, "Issue IOCFacts: Init command is in use\n");
3131 mutex_unlock(&mrioc->init_cmds.mutex);
3132 goto out;
3133 }
3134 mrioc->init_cmds.state = MPI3MR_CMD_PENDING;
3135 mrioc->init_cmds.is_waiting = 1;
3136 mrioc->init_cmds.callback = NULL;
3137 iocfacts_req.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_INITCMDS);
3138 iocfacts_req.function = MPI3_FUNCTION_IOC_FACTS;
3139
3140 mpi3mr_add_sg_single(&iocfacts_req.sgl, sgl_flags, data_len,
3141 data_dma);
3142
3143 init_completion(&mrioc->init_cmds.done);
3144 retval = mpi3mr_admin_request_post(mrioc, &iocfacts_req,
3145 sizeof(iocfacts_req), 1);
3146 if (retval) {
3147 ioc_err(mrioc, "Issue IOCFacts: Admin Post failed\n");
3148 goto out_unlock;
3149 }
3150 wait_for_completion_timeout(&mrioc->init_cmds.done,
3151 (MPI3MR_INTADMCMD_TIMEOUT * HZ));
3152 if (!(mrioc->init_cmds.state & MPI3MR_CMD_COMPLETE)) {
3153 ioc_err(mrioc, "ioc_facts timed out\n");
3154 mpi3mr_check_rh_fault_ioc(mrioc,
3155 MPI3MR_RESET_FROM_IOCFACTS_TIMEOUT);
3156 retval = -1;
3157 goto out_unlock;
3158 }
3159 if ((mrioc->init_cmds.ioc_status & MPI3_IOCSTATUS_STATUS_MASK)
3160 != MPI3_IOCSTATUS_SUCCESS) {
3161 ioc_err(mrioc,
3162 "Issue IOCFacts: Failed ioc_status(0x%04x) Loginfo(0x%08x)\n",
3163 (mrioc->init_cmds.ioc_status & MPI3_IOCSTATUS_STATUS_MASK),
3164 mrioc->init_cmds.ioc_loginfo);
3165 retval = -1;
3166 goto out_unlock;
3167 }
3168 memcpy(facts_data, (u8 *)data, data_len);
3169 mpi3mr_process_factsdata(mrioc, facts_data);
3170 out_unlock:
3171 mrioc->init_cmds.state = MPI3MR_CMD_NOTUSED;
3172 mutex_unlock(&mrioc->init_cmds.mutex);
3173
3174 out:
3175 if (data)
3176 dma_free_coherent(&mrioc->pdev->dev, data_len, data, data_dma);
3177
3178 return retval;
3179 }
3180
3181 /**
3182 * mpi3mr_check_reset_dma_mask - Process IOC facts data
3183 * @mrioc: Adapter instance reference
3184 *
3185 * Check whether the new DMA mask requested through IOCFacts by
3186 * firmware needs to be set, if so set it .
3187 *
3188 * Return: 0 on success, non-zero on failure.
3189 */
mpi3mr_check_reset_dma_mask(struct mpi3mr_ioc * mrioc)3190 static inline int mpi3mr_check_reset_dma_mask(struct mpi3mr_ioc *mrioc)
3191 {
3192 struct pci_dev *pdev = mrioc->pdev;
3193 int r;
3194 u64 facts_dma_mask = DMA_BIT_MASK(mrioc->facts.dma_mask);
3195
3196 if (!mrioc->facts.dma_mask || (mrioc->dma_mask <= facts_dma_mask))
3197 return 0;
3198
3199 ioc_info(mrioc, "Changing DMA mask from 0x%016llx to 0x%016llx\n",
3200 mrioc->dma_mask, facts_dma_mask);
3201
3202 r = dma_set_mask_and_coherent(&pdev->dev, facts_dma_mask);
3203 if (r) {
3204 ioc_err(mrioc, "Setting DMA mask to 0x%016llx failed: %d\n",
3205 facts_dma_mask, r);
3206 return r;
3207 }
3208 mrioc->dma_mask = facts_dma_mask;
3209 return r;
3210 }
3211
3212 /**
3213 * mpi3mr_process_factsdata - Process IOC facts data
3214 * @mrioc: Adapter instance reference
3215 * @facts_data: Cached IOC facts data
3216 *
3217 * Convert IOC facts data into cpu endianness and cache it in
3218 * the driver .
3219 *
3220 * Return: Nothing.
3221 */
mpi3mr_process_factsdata(struct mpi3mr_ioc * mrioc,struct mpi3_ioc_facts_data * facts_data)3222 static void mpi3mr_process_factsdata(struct mpi3mr_ioc *mrioc,
3223 struct mpi3_ioc_facts_data *facts_data)
3224 {
3225 u32 ioc_config, req_sz, facts_flags;
3226
3227 if ((le16_to_cpu(facts_data->ioc_facts_data_length)) !=
3228 (sizeof(*facts_data) / 4)) {
3229 ioc_warn(mrioc,
3230 "IOCFactsdata length mismatch driver_sz(%zu) firmware_sz(%d)\n",
3231 sizeof(*facts_data),
3232 le16_to_cpu(facts_data->ioc_facts_data_length) * 4);
3233 }
3234
3235 ioc_config = readl(&mrioc->sysif_regs->ioc_configuration);
3236 req_sz = 1 << ((ioc_config & MPI3_SYSIF_IOC_CONFIG_OPER_REQ_ENT_SZ) >>
3237 MPI3_SYSIF_IOC_CONFIG_OPER_REQ_ENT_SZ_SHIFT);
3238 if (le16_to_cpu(facts_data->ioc_request_frame_size) != (req_sz / 4)) {
3239 ioc_err(mrioc,
3240 "IOCFacts data reqFrameSize mismatch hw_size(%d) firmware_sz(%d)\n",
3241 req_sz / 4, le16_to_cpu(facts_data->ioc_request_frame_size));
3242 }
3243
3244 memset(&mrioc->facts, 0, sizeof(mrioc->facts));
3245
3246 facts_flags = le32_to_cpu(facts_data->flags);
3247 mrioc->facts.op_req_sz = req_sz;
3248 mrioc->op_reply_desc_sz = 1 << ((ioc_config &
3249 MPI3_SYSIF_IOC_CONFIG_OPER_RPY_ENT_SZ) >>
3250 MPI3_SYSIF_IOC_CONFIG_OPER_RPY_ENT_SZ_SHIFT);
3251
3252 mrioc->facts.ioc_num = facts_data->ioc_number;
3253 mrioc->facts.who_init = facts_data->who_init;
3254 mrioc->facts.max_msix_vectors = le16_to_cpu(facts_data->max_msix_vectors);
3255 mrioc->facts.personality = (facts_flags &
3256 MPI3_IOCFACTS_FLAGS_PERSONALITY_MASK);
3257 mrioc->facts.dma_mask = (facts_flags &
3258 MPI3_IOCFACTS_FLAGS_DMA_ADDRESS_WIDTH_MASK) >>
3259 MPI3_IOCFACTS_FLAGS_DMA_ADDRESS_WIDTH_SHIFT;
3260 mrioc->facts.dma_mask = (facts_flags &
3261 MPI3_IOCFACTS_FLAGS_DMA_ADDRESS_WIDTH_MASK) >>
3262 MPI3_IOCFACTS_FLAGS_DMA_ADDRESS_WIDTH_SHIFT;
3263 mrioc->facts.max_req_limit = (facts_flags &
3264 MPI3_IOCFACTS_FLAGS_MAX_REQ_PER_REPLY_QUEUE_LIMIT);
3265 mrioc->facts.protocol_flags = facts_data->protocol_flags;
3266 mrioc->facts.mpi_version = le32_to_cpu(facts_data->mpi_version.word);
3267 mrioc->facts.max_reqs = le16_to_cpu(facts_data->max_outstanding_requests);
3268 mrioc->facts.product_id = le16_to_cpu(facts_data->product_id);
3269 mrioc->facts.reply_sz = le16_to_cpu(facts_data->reply_frame_size) * 4;
3270 mrioc->facts.exceptions = le16_to_cpu(facts_data->ioc_exceptions);
3271 mrioc->facts.max_perids = le16_to_cpu(facts_data->max_persistent_id);
3272 mrioc->facts.max_vds = le16_to_cpu(facts_data->max_vds);
3273 mrioc->facts.max_hpds = le16_to_cpu(facts_data->max_host_pds);
3274 mrioc->facts.max_advhpds = le16_to_cpu(facts_data->max_adv_host_pds);
3275 mrioc->facts.max_raid_pds = le16_to_cpu(facts_data->max_raid_pds);
3276 mrioc->facts.max_nvme = le16_to_cpu(facts_data->max_nvme);
3277 mrioc->facts.max_pcie_switches =
3278 le16_to_cpu(facts_data->max_pcie_switches);
3279 mrioc->facts.max_sasexpanders =
3280 le16_to_cpu(facts_data->max_sas_expanders);
3281 mrioc->facts.max_data_length = le16_to_cpu(facts_data->max_data_length);
3282 mrioc->facts.max_sasinitiators =
3283 le16_to_cpu(facts_data->max_sas_initiators);
3284 mrioc->facts.max_enclosures = le16_to_cpu(facts_data->max_enclosures);
3285 mrioc->facts.min_devhandle = le16_to_cpu(facts_data->min_dev_handle);
3286 mrioc->facts.max_devhandle = le16_to_cpu(facts_data->max_dev_handle);
3287 mrioc->facts.max_op_req_q =
3288 le16_to_cpu(facts_data->max_operational_request_queues);
3289 mrioc->facts.max_op_reply_q =
3290 le16_to_cpu(facts_data->max_operational_reply_queues);
3291 mrioc->facts.ioc_capabilities =
3292 le32_to_cpu(facts_data->ioc_capabilities);
3293 mrioc->facts.fw_ver.build_num =
3294 le16_to_cpu(facts_data->fw_version.build_num);
3295 mrioc->facts.fw_ver.cust_id =
3296 le16_to_cpu(facts_data->fw_version.customer_id);
3297 mrioc->facts.fw_ver.ph_minor = facts_data->fw_version.phase_minor;
3298 mrioc->facts.fw_ver.ph_major = facts_data->fw_version.phase_major;
3299 mrioc->facts.fw_ver.gen_minor = facts_data->fw_version.gen_minor;
3300 mrioc->facts.fw_ver.gen_major = facts_data->fw_version.gen_major;
3301 mrioc->msix_count = min_t(int, mrioc->msix_count,
3302 mrioc->facts.max_msix_vectors);
3303 mrioc->facts.sge_mod_mask = facts_data->sge_modifier_mask;
3304 mrioc->facts.sge_mod_value = facts_data->sge_modifier_value;
3305 mrioc->facts.sge_mod_shift = facts_data->sge_modifier_shift;
3306 mrioc->facts.shutdown_timeout =
3307 le16_to_cpu(facts_data->shutdown_timeout);
3308 mrioc->facts.diag_trace_sz =
3309 le32_to_cpu(facts_data->diag_trace_size);
3310 mrioc->facts.diag_fw_sz =
3311 le32_to_cpu(facts_data->diag_fw_size);
3312 mrioc->facts.diag_drvr_sz = le32_to_cpu(facts_data->diag_driver_size);
3313 mrioc->facts.max_dev_per_tg =
3314 facts_data->max_devices_per_throttle_group;
3315 mrioc->facts.io_throttle_data_length =
3316 le16_to_cpu(facts_data->io_throttle_data_length);
3317 mrioc->facts.max_io_throttle_group =
3318 le16_to_cpu(facts_data->max_io_throttle_group);
3319 mrioc->facts.io_throttle_low = le16_to_cpu(facts_data->io_throttle_low);
3320 mrioc->facts.io_throttle_high =
3321 le16_to_cpu(facts_data->io_throttle_high);
3322
3323 if (mrioc->facts.max_data_length ==
3324 MPI3_IOCFACTS_MAX_DATA_LENGTH_NOT_REPORTED)
3325 mrioc->facts.max_data_length = MPI3MR_DEFAULT_MAX_IO_SIZE;
3326 else
3327 mrioc->facts.max_data_length *= MPI3MR_PAGE_SIZE_4K;
3328 /* Store in 512b block count */
3329 if (mrioc->facts.io_throttle_data_length)
3330 mrioc->io_throttle_data_length =
3331 (mrioc->facts.io_throttle_data_length * 2 * 4);
3332 else
3333 /* set the length to 1MB + 1K to disable throttle */
3334 mrioc->io_throttle_data_length = (mrioc->facts.max_data_length / 512) + 2;
3335
3336 mrioc->io_throttle_high = (mrioc->facts.io_throttle_high * 2 * 1024);
3337 mrioc->io_throttle_low = (mrioc->facts.io_throttle_low * 2 * 1024);
3338
3339 ioc_info(mrioc, "ioc_num(%d), maxopQ(%d), maxopRepQ(%d), maxdh(%d),",
3340 mrioc->facts.ioc_num, mrioc->facts.max_op_req_q,
3341 mrioc->facts.max_op_reply_q, mrioc->facts.max_devhandle);
3342 ioc_info(mrioc,
3343 "maxreqs(%d), mindh(%d) maxvectors(%d) maxperids(%d)\n",
3344 mrioc->facts.max_reqs, mrioc->facts.min_devhandle,
3345 mrioc->facts.max_msix_vectors, mrioc->facts.max_perids);
3346 ioc_info(mrioc, "SGEModMask 0x%x SGEModVal 0x%x SGEModShift 0x%x ",
3347 mrioc->facts.sge_mod_mask, mrioc->facts.sge_mod_value,
3348 mrioc->facts.sge_mod_shift);
3349 ioc_info(mrioc, "DMA mask %d InitialPE status 0x%x max_data_len (%d)\n",
3350 mrioc->facts.dma_mask, (facts_flags &
3351 MPI3_IOCFACTS_FLAGS_INITIAL_PORT_ENABLE_MASK), mrioc->facts.max_data_length);
3352 ioc_info(mrioc,
3353 "max_dev_per_throttle_group(%d), max_throttle_groups(%d)\n",
3354 mrioc->facts.max_dev_per_tg, mrioc->facts.max_io_throttle_group);
3355 ioc_info(mrioc,
3356 "io_throttle_data_len(%dKiB), io_throttle_high(%dMiB), io_throttle_low(%dMiB)\n",
3357 mrioc->facts.io_throttle_data_length * 4,
3358 mrioc->facts.io_throttle_high, mrioc->facts.io_throttle_low);
3359 }
3360
3361 /**
3362 * mpi3mr_alloc_reply_sense_bufs - Send IOC Init
3363 * @mrioc: Adapter instance reference
3364 *
3365 * Allocate and initialize the reply free buffers, sense
3366 * buffers, reply free queue and sense buffer queue.
3367 *
3368 * Return: 0 on success, non-zero on failures.
3369 */
mpi3mr_alloc_reply_sense_bufs(struct mpi3mr_ioc * mrioc)3370 static int mpi3mr_alloc_reply_sense_bufs(struct mpi3mr_ioc *mrioc)
3371 {
3372 int retval = 0;
3373 u32 sz, i;
3374
3375 if (mrioc->init_cmds.reply)
3376 return retval;
3377
3378 mrioc->init_cmds.reply = kzalloc(mrioc->reply_sz, GFP_KERNEL);
3379 if (!mrioc->init_cmds.reply)
3380 goto out_failed;
3381
3382 mrioc->bsg_cmds.reply = kzalloc(mrioc->reply_sz, GFP_KERNEL);
3383 if (!mrioc->bsg_cmds.reply)
3384 goto out_failed;
3385
3386 mrioc->transport_cmds.reply = kzalloc(mrioc->reply_sz, GFP_KERNEL);
3387 if (!mrioc->transport_cmds.reply)
3388 goto out_failed;
3389
3390 for (i = 0; i < MPI3MR_NUM_DEVRMCMD; i++) {
3391 mrioc->dev_rmhs_cmds[i].reply = kzalloc(mrioc->reply_sz,
3392 GFP_KERNEL);
3393 if (!mrioc->dev_rmhs_cmds[i].reply)
3394 goto out_failed;
3395 }
3396
3397 for (i = 0; i < MPI3MR_NUM_EVTACKCMD; i++) {
3398 mrioc->evtack_cmds[i].reply = kzalloc(mrioc->reply_sz,
3399 GFP_KERNEL);
3400 if (!mrioc->evtack_cmds[i].reply)
3401 goto out_failed;
3402 }
3403
3404 mrioc->host_tm_cmds.reply = kzalloc(mrioc->reply_sz, GFP_KERNEL);
3405 if (!mrioc->host_tm_cmds.reply)
3406 goto out_failed;
3407
3408 mrioc->pel_cmds.reply = kzalloc(mrioc->reply_sz, GFP_KERNEL);
3409 if (!mrioc->pel_cmds.reply)
3410 goto out_failed;
3411
3412 mrioc->pel_abort_cmd.reply = kzalloc(mrioc->reply_sz, GFP_KERNEL);
3413 if (!mrioc->pel_abort_cmd.reply)
3414 goto out_failed;
3415
3416 mrioc->dev_handle_bitmap_bits = mrioc->facts.max_devhandle;
3417 mrioc->removepend_bitmap = bitmap_zalloc(mrioc->dev_handle_bitmap_bits,
3418 GFP_KERNEL);
3419 if (!mrioc->removepend_bitmap)
3420 goto out_failed;
3421
3422 mrioc->devrem_bitmap = bitmap_zalloc(MPI3MR_NUM_DEVRMCMD, GFP_KERNEL);
3423 if (!mrioc->devrem_bitmap)
3424 goto out_failed;
3425
3426 mrioc->evtack_cmds_bitmap = bitmap_zalloc(MPI3MR_NUM_EVTACKCMD,
3427 GFP_KERNEL);
3428 if (!mrioc->evtack_cmds_bitmap)
3429 goto out_failed;
3430
3431 mrioc->num_reply_bufs = mrioc->facts.max_reqs + MPI3MR_NUM_EVT_REPLIES;
3432 mrioc->reply_free_qsz = mrioc->num_reply_bufs + 1;
3433 mrioc->num_sense_bufs = mrioc->facts.max_reqs / MPI3MR_SENSEBUF_FACTOR;
3434 mrioc->sense_buf_q_sz = mrioc->num_sense_bufs + 1;
3435
3436 /* reply buffer pool, 16 byte align */
3437 sz = mrioc->num_reply_bufs * mrioc->reply_sz;
3438 mrioc->reply_buf_pool = dma_pool_create("reply_buf pool",
3439 &mrioc->pdev->dev, sz, 16, 0);
3440 if (!mrioc->reply_buf_pool) {
3441 ioc_err(mrioc, "reply buf pool: dma_pool_create failed\n");
3442 goto out_failed;
3443 }
3444
3445 mrioc->reply_buf = dma_pool_zalloc(mrioc->reply_buf_pool, GFP_KERNEL,
3446 &mrioc->reply_buf_dma);
3447 if (!mrioc->reply_buf)
3448 goto out_failed;
3449
3450 mrioc->reply_buf_dma_max_address = mrioc->reply_buf_dma + sz;
3451
3452 /* reply free queue, 8 byte align */
3453 sz = mrioc->reply_free_qsz * 8;
3454 mrioc->reply_free_q_pool = dma_pool_create("reply_free_q pool",
3455 &mrioc->pdev->dev, sz, 8, 0);
3456 if (!mrioc->reply_free_q_pool) {
3457 ioc_err(mrioc, "reply_free_q pool: dma_pool_create failed\n");
3458 goto out_failed;
3459 }
3460 mrioc->reply_free_q = dma_pool_zalloc(mrioc->reply_free_q_pool,
3461 GFP_KERNEL, &mrioc->reply_free_q_dma);
3462 if (!mrioc->reply_free_q)
3463 goto out_failed;
3464
3465 /* sense buffer pool, 4 byte align */
3466 sz = mrioc->num_sense_bufs * MPI3MR_SENSE_BUF_SZ;
3467 mrioc->sense_buf_pool = dma_pool_create("sense_buf pool",
3468 &mrioc->pdev->dev, sz, 4, 0);
3469 if (!mrioc->sense_buf_pool) {
3470 ioc_err(mrioc, "sense_buf pool: dma_pool_create failed\n");
3471 goto out_failed;
3472 }
3473 mrioc->sense_buf = dma_pool_zalloc(mrioc->sense_buf_pool, GFP_KERNEL,
3474 &mrioc->sense_buf_dma);
3475 if (!mrioc->sense_buf)
3476 goto out_failed;
3477
3478 /* sense buffer queue, 8 byte align */
3479 sz = mrioc->sense_buf_q_sz * 8;
3480 mrioc->sense_buf_q_pool = dma_pool_create("sense_buf_q pool",
3481 &mrioc->pdev->dev, sz, 8, 0);
3482 if (!mrioc->sense_buf_q_pool) {
3483 ioc_err(mrioc, "sense_buf_q pool: dma_pool_create failed\n");
3484 goto out_failed;
3485 }
3486 mrioc->sense_buf_q = dma_pool_zalloc(mrioc->sense_buf_q_pool,
3487 GFP_KERNEL, &mrioc->sense_buf_q_dma);
3488 if (!mrioc->sense_buf_q)
3489 goto out_failed;
3490
3491 return retval;
3492
3493 out_failed:
3494 retval = -1;
3495 return retval;
3496 }
3497
3498 /**
3499 * mpimr_initialize_reply_sbuf_queues - initialize reply sense
3500 * buffers
3501 * @mrioc: Adapter instance reference
3502 *
3503 * Helper function to initialize reply and sense buffers along
3504 * with some debug prints.
3505 *
3506 * Return: None.
3507 */
mpimr_initialize_reply_sbuf_queues(struct mpi3mr_ioc * mrioc)3508 static void mpimr_initialize_reply_sbuf_queues(struct mpi3mr_ioc *mrioc)
3509 {
3510 u32 sz, i;
3511 dma_addr_t phy_addr;
3512
3513 sz = mrioc->num_reply_bufs * mrioc->reply_sz;
3514 ioc_info(mrioc,
3515 "reply buf pool(0x%p): depth(%d), frame_size(%d), pool_size(%d kB), reply_dma(0x%llx)\n",
3516 mrioc->reply_buf, mrioc->num_reply_bufs, mrioc->reply_sz,
3517 (sz / 1024), (unsigned long long)mrioc->reply_buf_dma);
3518 sz = mrioc->reply_free_qsz * 8;
3519 ioc_info(mrioc,
3520 "reply_free_q pool(0x%p): depth(%d), frame_size(%d), pool_size(%d kB), reply_dma(0x%llx)\n",
3521 mrioc->reply_free_q, mrioc->reply_free_qsz, 8, (sz / 1024),
3522 (unsigned long long)mrioc->reply_free_q_dma);
3523 sz = mrioc->num_sense_bufs * MPI3MR_SENSE_BUF_SZ;
3524 ioc_info(mrioc,
3525 "sense_buf pool(0x%p): depth(%d), frame_size(%d), pool_size(%d kB), sense_dma(0x%llx)\n",
3526 mrioc->sense_buf, mrioc->num_sense_bufs, MPI3MR_SENSE_BUF_SZ,
3527 (sz / 1024), (unsigned long long)mrioc->sense_buf_dma);
3528 sz = mrioc->sense_buf_q_sz * 8;
3529 ioc_info(mrioc,
3530 "sense_buf_q pool(0x%p): depth(%d), frame_size(%d), pool_size(%d kB), sense_dma(0x%llx)\n",
3531 mrioc->sense_buf_q, mrioc->sense_buf_q_sz, 8, (sz / 1024),
3532 (unsigned long long)mrioc->sense_buf_q_dma);
3533
3534 /* initialize Reply buffer Queue */
3535 for (i = 0, phy_addr = mrioc->reply_buf_dma;
3536 i < mrioc->num_reply_bufs; i++, phy_addr += mrioc->reply_sz)
3537 mrioc->reply_free_q[i] = cpu_to_le64(phy_addr);
3538 mrioc->reply_free_q[i] = cpu_to_le64(0);
3539
3540 /* initialize Sense Buffer Queue */
3541 for (i = 0, phy_addr = mrioc->sense_buf_dma;
3542 i < mrioc->num_sense_bufs; i++, phy_addr += MPI3MR_SENSE_BUF_SZ)
3543 mrioc->sense_buf_q[i] = cpu_to_le64(phy_addr);
3544 mrioc->sense_buf_q[i] = cpu_to_le64(0);
3545 }
3546
3547 /**
3548 * mpi3mr_issue_iocinit - Send IOC Init
3549 * @mrioc: Adapter instance reference
3550 *
3551 * Issue IOC Init MPI request through admin queue and wait for
3552 * the completion of it or time out.
3553 *
3554 * Return: 0 on success, non-zero on failures.
3555 */
mpi3mr_issue_iocinit(struct mpi3mr_ioc * mrioc)3556 static int mpi3mr_issue_iocinit(struct mpi3mr_ioc *mrioc)
3557 {
3558 struct mpi3_ioc_init_request iocinit_req;
3559 struct mpi3_driver_info_layout *drv_info;
3560 dma_addr_t data_dma;
3561 u32 data_len = sizeof(*drv_info);
3562 int retval = 0;
3563 ktime_t current_time;
3564
3565 drv_info = dma_alloc_coherent(&mrioc->pdev->dev, data_len, &data_dma,
3566 GFP_KERNEL);
3567 if (!drv_info) {
3568 retval = -1;
3569 goto out;
3570 }
3571 mpimr_initialize_reply_sbuf_queues(mrioc);
3572
3573 drv_info->information_length = cpu_to_le32(data_len);
3574 strscpy(drv_info->driver_signature, "Broadcom", sizeof(drv_info->driver_signature));
3575 strscpy(drv_info->os_name, utsname()->sysname, sizeof(drv_info->os_name));
3576 strscpy(drv_info->os_version, utsname()->release, sizeof(drv_info->os_version));
3577 strscpy(drv_info->driver_name, MPI3MR_DRIVER_NAME, sizeof(drv_info->driver_name));
3578 strscpy(drv_info->driver_version, MPI3MR_DRIVER_VERSION, sizeof(drv_info->driver_version));
3579 strscpy(drv_info->driver_release_date, MPI3MR_DRIVER_RELDATE,
3580 sizeof(drv_info->driver_release_date));
3581 drv_info->driver_capabilities = 0;
3582 memcpy((u8 *)&mrioc->driver_info, (u8 *)drv_info,
3583 sizeof(mrioc->driver_info));
3584
3585 memset(&iocinit_req, 0, sizeof(iocinit_req));
3586 mutex_lock(&mrioc->init_cmds.mutex);
3587 if (mrioc->init_cmds.state & MPI3MR_CMD_PENDING) {
3588 retval = -1;
3589 ioc_err(mrioc, "Issue IOCInit: Init command is in use\n");
3590 mutex_unlock(&mrioc->init_cmds.mutex);
3591 goto out;
3592 }
3593 mrioc->init_cmds.state = MPI3MR_CMD_PENDING;
3594 mrioc->init_cmds.is_waiting = 1;
3595 mrioc->init_cmds.callback = NULL;
3596 iocinit_req.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_INITCMDS);
3597 iocinit_req.function = MPI3_FUNCTION_IOC_INIT;
3598 iocinit_req.mpi_version.mpi3_version.dev = MPI3_VERSION_DEV;
3599 iocinit_req.mpi_version.mpi3_version.unit = MPI3_VERSION_UNIT;
3600 iocinit_req.mpi_version.mpi3_version.major = MPI3_VERSION_MAJOR;
3601 iocinit_req.mpi_version.mpi3_version.minor = MPI3_VERSION_MINOR;
3602 iocinit_req.who_init = MPI3_WHOINIT_HOST_DRIVER;
3603 iocinit_req.reply_free_queue_depth = cpu_to_le16(mrioc->reply_free_qsz);
3604 iocinit_req.reply_free_queue_address =
3605 cpu_to_le64(mrioc->reply_free_q_dma);
3606 iocinit_req.sense_buffer_length = cpu_to_le16(MPI3MR_SENSE_BUF_SZ);
3607 iocinit_req.sense_buffer_free_queue_depth =
3608 cpu_to_le16(mrioc->sense_buf_q_sz);
3609 iocinit_req.sense_buffer_free_queue_address =
3610 cpu_to_le64(mrioc->sense_buf_q_dma);
3611 iocinit_req.driver_information_address = cpu_to_le64(data_dma);
3612
3613 current_time = ktime_get_real();
3614 iocinit_req.time_stamp = cpu_to_le64(ktime_to_ms(current_time));
3615
3616 iocinit_req.msg_flags |=
3617 MPI3_IOCINIT_MSGFLAGS_SCSIIOSTATUSREPLY_SUPPORTED;
3618 iocinit_req.msg_flags |=
3619 MPI3_IOCINIT_MSGFLAGS_WRITESAMEDIVERT_SUPPORTED;
3620
3621 init_completion(&mrioc->init_cmds.done);
3622 retval = mpi3mr_admin_request_post(mrioc, &iocinit_req,
3623 sizeof(iocinit_req), 1);
3624 if (retval) {
3625 ioc_err(mrioc, "Issue IOCInit: Admin Post failed\n");
3626 goto out_unlock;
3627 }
3628 wait_for_completion_timeout(&mrioc->init_cmds.done,
3629 (MPI3MR_INTADMCMD_TIMEOUT * HZ));
3630 if (!(mrioc->init_cmds.state & MPI3MR_CMD_COMPLETE)) {
3631 mpi3mr_check_rh_fault_ioc(mrioc,
3632 MPI3MR_RESET_FROM_IOCINIT_TIMEOUT);
3633 ioc_err(mrioc, "ioc_init timed out\n");
3634 retval = -1;
3635 goto out_unlock;
3636 }
3637 if ((mrioc->init_cmds.ioc_status & MPI3_IOCSTATUS_STATUS_MASK)
3638 != MPI3_IOCSTATUS_SUCCESS) {
3639 ioc_err(mrioc,
3640 "Issue IOCInit: Failed ioc_status(0x%04x) Loginfo(0x%08x)\n",
3641 (mrioc->init_cmds.ioc_status & MPI3_IOCSTATUS_STATUS_MASK),
3642 mrioc->init_cmds.ioc_loginfo);
3643 retval = -1;
3644 goto out_unlock;
3645 }
3646
3647 mrioc->reply_free_queue_host_index = mrioc->num_reply_bufs;
3648 writel(mrioc->reply_free_queue_host_index,
3649 &mrioc->sysif_regs->reply_free_host_index);
3650
3651 mrioc->sbq_host_index = mrioc->num_sense_bufs;
3652 writel(mrioc->sbq_host_index,
3653 &mrioc->sysif_regs->sense_buffer_free_host_index);
3654 out_unlock:
3655 mrioc->init_cmds.state = MPI3MR_CMD_NOTUSED;
3656 mutex_unlock(&mrioc->init_cmds.mutex);
3657
3658 out:
3659 if (drv_info)
3660 dma_free_coherent(&mrioc->pdev->dev, data_len, drv_info,
3661 data_dma);
3662
3663 return retval;
3664 }
3665
3666 /**
3667 * mpi3mr_unmask_events - Unmask events in event mask bitmap
3668 * @mrioc: Adapter instance reference
3669 * @event: MPI event ID
3670 *
3671 * Un mask the specific event by resetting the event_mask
3672 * bitmap.
3673 *
3674 * Return: 0 on success, non-zero on failures.
3675 */
mpi3mr_unmask_events(struct mpi3mr_ioc * mrioc,u16 event)3676 static void mpi3mr_unmask_events(struct mpi3mr_ioc *mrioc, u16 event)
3677 {
3678 u32 desired_event;
3679 u8 word;
3680
3681 if (event >= 128)
3682 return;
3683
3684 desired_event = (1 << (event % 32));
3685 word = event / 32;
3686
3687 mrioc->event_masks[word] &= ~desired_event;
3688 }
3689
3690 /**
3691 * mpi3mr_issue_event_notification - Send event notification
3692 * @mrioc: Adapter instance reference
3693 *
3694 * Issue event notification MPI request through admin queue and
3695 * wait for the completion of it or time out.
3696 *
3697 * Return: 0 on success, non-zero on failures.
3698 */
mpi3mr_issue_event_notification(struct mpi3mr_ioc * mrioc)3699 static int mpi3mr_issue_event_notification(struct mpi3mr_ioc *mrioc)
3700 {
3701 struct mpi3_event_notification_request evtnotify_req;
3702 int retval = 0;
3703 u8 i;
3704
3705 memset(&evtnotify_req, 0, sizeof(evtnotify_req));
3706 mutex_lock(&mrioc->init_cmds.mutex);
3707 if (mrioc->init_cmds.state & MPI3MR_CMD_PENDING) {
3708 retval = -1;
3709 ioc_err(mrioc, "Issue EvtNotify: Init command is in use\n");
3710 mutex_unlock(&mrioc->init_cmds.mutex);
3711 goto out;
3712 }
3713 mrioc->init_cmds.state = MPI3MR_CMD_PENDING;
3714 mrioc->init_cmds.is_waiting = 1;
3715 mrioc->init_cmds.callback = NULL;
3716 evtnotify_req.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_INITCMDS);
3717 evtnotify_req.function = MPI3_FUNCTION_EVENT_NOTIFICATION;
3718 for (i = 0; i < MPI3_EVENT_NOTIFY_EVENTMASK_WORDS; i++)
3719 evtnotify_req.event_masks[i] =
3720 cpu_to_le32(mrioc->event_masks[i]);
3721 init_completion(&mrioc->init_cmds.done);
3722 retval = mpi3mr_admin_request_post(mrioc, &evtnotify_req,
3723 sizeof(evtnotify_req), 1);
3724 if (retval) {
3725 ioc_err(mrioc, "Issue EvtNotify: Admin Post failed\n");
3726 goto out_unlock;
3727 }
3728 wait_for_completion_timeout(&mrioc->init_cmds.done,
3729 (MPI3MR_INTADMCMD_TIMEOUT * HZ));
3730 if (!(mrioc->init_cmds.state & MPI3MR_CMD_COMPLETE)) {
3731 ioc_err(mrioc, "event notification timed out\n");
3732 mpi3mr_check_rh_fault_ioc(mrioc,
3733 MPI3MR_RESET_FROM_EVTNOTIFY_TIMEOUT);
3734 retval = -1;
3735 goto out_unlock;
3736 }
3737 if ((mrioc->init_cmds.ioc_status & MPI3_IOCSTATUS_STATUS_MASK)
3738 != MPI3_IOCSTATUS_SUCCESS) {
3739 ioc_err(mrioc,
3740 "Issue EvtNotify: Failed ioc_status(0x%04x) Loginfo(0x%08x)\n",
3741 (mrioc->init_cmds.ioc_status & MPI3_IOCSTATUS_STATUS_MASK),
3742 mrioc->init_cmds.ioc_loginfo);
3743 retval = -1;
3744 goto out_unlock;
3745 }
3746
3747 out_unlock:
3748 mrioc->init_cmds.state = MPI3MR_CMD_NOTUSED;
3749 mutex_unlock(&mrioc->init_cmds.mutex);
3750 out:
3751 return retval;
3752 }
3753
3754 /**
3755 * mpi3mr_process_event_ack - Process event acknowledgment
3756 * @mrioc: Adapter instance reference
3757 * @event: MPI3 event ID
3758 * @event_ctx: event context
3759 *
3760 * Send event acknowledgment through admin queue and wait for
3761 * it to complete.
3762 *
3763 * Return: 0 on success, non-zero on failures.
3764 */
mpi3mr_process_event_ack(struct mpi3mr_ioc * mrioc,u8 event,u32 event_ctx)3765 int mpi3mr_process_event_ack(struct mpi3mr_ioc *mrioc, u8 event,
3766 u32 event_ctx)
3767 {
3768 struct mpi3_event_ack_request evtack_req;
3769 int retval = 0;
3770
3771 memset(&evtack_req, 0, sizeof(evtack_req));
3772 mutex_lock(&mrioc->init_cmds.mutex);
3773 if (mrioc->init_cmds.state & MPI3MR_CMD_PENDING) {
3774 retval = -1;
3775 ioc_err(mrioc, "Send EvtAck: Init command is in use\n");
3776 mutex_unlock(&mrioc->init_cmds.mutex);
3777 goto out;
3778 }
3779 mrioc->init_cmds.state = MPI3MR_CMD_PENDING;
3780 mrioc->init_cmds.is_waiting = 1;
3781 mrioc->init_cmds.callback = NULL;
3782 evtack_req.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_INITCMDS);
3783 evtack_req.function = MPI3_FUNCTION_EVENT_ACK;
3784 evtack_req.event = event;
3785 evtack_req.event_context = cpu_to_le32(event_ctx);
3786
3787 init_completion(&mrioc->init_cmds.done);
3788 retval = mpi3mr_admin_request_post(mrioc, &evtack_req,
3789 sizeof(evtack_req), 1);
3790 if (retval) {
3791 ioc_err(mrioc, "Send EvtAck: Admin Post failed\n");
3792 goto out_unlock;
3793 }
3794 wait_for_completion_timeout(&mrioc->init_cmds.done,
3795 (MPI3MR_INTADMCMD_TIMEOUT * HZ));
3796 if (!(mrioc->init_cmds.state & MPI3MR_CMD_COMPLETE)) {
3797 ioc_err(mrioc, "Issue EvtNotify: command timed out\n");
3798 if (!(mrioc->init_cmds.state & MPI3MR_CMD_RESET))
3799 mpi3mr_check_rh_fault_ioc(mrioc,
3800 MPI3MR_RESET_FROM_EVTACK_TIMEOUT);
3801 retval = -1;
3802 goto out_unlock;
3803 }
3804 if ((mrioc->init_cmds.ioc_status & MPI3_IOCSTATUS_STATUS_MASK)
3805 != MPI3_IOCSTATUS_SUCCESS) {
3806 ioc_err(mrioc,
3807 "Send EvtAck: Failed ioc_status(0x%04x) Loginfo(0x%08x)\n",
3808 (mrioc->init_cmds.ioc_status & MPI3_IOCSTATUS_STATUS_MASK),
3809 mrioc->init_cmds.ioc_loginfo);
3810 retval = -1;
3811 goto out_unlock;
3812 }
3813
3814 out_unlock:
3815 mrioc->init_cmds.state = MPI3MR_CMD_NOTUSED;
3816 mutex_unlock(&mrioc->init_cmds.mutex);
3817 out:
3818 return retval;
3819 }
3820
3821 /**
3822 * mpi3mr_alloc_chain_bufs - Allocate chain buffers
3823 * @mrioc: Adapter instance reference
3824 *
3825 * Allocate chain buffers and set a bitmap to indicate free
3826 * chain buffers. Chain buffers are used to pass the SGE
3827 * information along with MPI3 SCSI IO requests for host I/O.
3828 *
3829 * Return: 0 on success, non-zero on failure
3830 */
mpi3mr_alloc_chain_bufs(struct mpi3mr_ioc * mrioc)3831 static int mpi3mr_alloc_chain_bufs(struct mpi3mr_ioc *mrioc)
3832 {
3833 int retval = 0;
3834 u32 sz, i;
3835 u16 num_chains;
3836
3837 if (mrioc->chain_sgl_list)
3838 return retval;
3839
3840 num_chains = mrioc->max_host_ios / MPI3MR_CHAINBUF_FACTOR;
3841
3842 if (prot_mask & (SHOST_DIX_TYPE0_PROTECTION
3843 | SHOST_DIX_TYPE1_PROTECTION
3844 | SHOST_DIX_TYPE2_PROTECTION
3845 | SHOST_DIX_TYPE3_PROTECTION))
3846 num_chains += (num_chains / MPI3MR_CHAINBUFDIX_FACTOR);
3847
3848 mrioc->chain_buf_count = num_chains;
3849 sz = sizeof(struct chain_element) * num_chains;
3850 mrioc->chain_sgl_list = kzalloc(sz, GFP_KERNEL);
3851 if (!mrioc->chain_sgl_list)
3852 goto out_failed;
3853
3854 if (mrioc->max_sgl_entries > (mrioc->facts.max_data_length /
3855 MPI3MR_PAGE_SIZE_4K))
3856 mrioc->max_sgl_entries = mrioc->facts.max_data_length /
3857 MPI3MR_PAGE_SIZE_4K;
3858 sz = mrioc->max_sgl_entries * sizeof(struct mpi3_sge_common);
3859 ioc_info(mrioc, "number of sgl entries=%d chain buffer size=%dKB\n",
3860 mrioc->max_sgl_entries, sz/1024);
3861
3862 mrioc->chain_buf_pool = dma_pool_create("chain_buf pool",
3863 &mrioc->pdev->dev, sz, 16, 0);
3864 if (!mrioc->chain_buf_pool) {
3865 ioc_err(mrioc, "chain buf pool: dma_pool_create failed\n");
3866 goto out_failed;
3867 }
3868
3869 for (i = 0; i < num_chains; i++) {
3870 mrioc->chain_sgl_list[i].addr =
3871 dma_pool_zalloc(mrioc->chain_buf_pool, GFP_KERNEL,
3872 &mrioc->chain_sgl_list[i].dma_addr);
3873
3874 if (!mrioc->chain_sgl_list[i].addr)
3875 goto out_failed;
3876 }
3877 mrioc->chain_bitmap = bitmap_zalloc(num_chains, GFP_KERNEL);
3878 if (!mrioc->chain_bitmap)
3879 goto out_failed;
3880 return retval;
3881 out_failed:
3882 retval = -1;
3883 return retval;
3884 }
3885
3886 /**
3887 * mpi3mr_port_enable_complete - Mark port enable complete
3888 * @mrioc: Adapter instance reference
3889 * @drv_cmd: Internal command tracker
3890 *
3891 * Call back for asynchronous port enable request sets the
3892 * driver command to indicate port enable request is complete.
3893 *
3894 * Return: Nothing
3895 */
mpi3mr_port_enable_complete(struct mpi3mr_ioc * mrioc,struct mpi3mr_drv_cmd * drv_cmd)3896 static void mpi3mr_port_enable_complete(struct mpi3mr_ioc *mrioc,
3897 struct mpi3mr_drv_cmd *drv_cmd)
3898 {
3899 drv_cmd->callback = NULL;
3900 mrioc->scan_started = 0;
3901 if (drv_cmd->state & MPI3MR_CMD_RESET)
3902 mrioc->scan_failed = MPI3_IOCSTATUS_INTERNAL_ERROR;
3903 else
3904 mrioc->scan_failed = drv_cmd->ioc_status;
3905 drv_cmd->state = MPI3MR_CMD_NOTUSED;
3906 }
3907
3908 /**
3909 * mpi3mr_issue_port_enable - Issue Port Enable
3910 * @mrioc: Adapter instance reference
3911 * @async: Flag to wait for completion or not
3912 *
3913 * Issue Port Enable MPI request through admin queue and if the
3914 * async flag is not set wait for the completion of the port
3915 * enable or time out.
3916 *
3917 * Return: 0 on success, non-zero on failures.
3918 */
mpi3mr_issue_port_enable(struct mpi3mr_ioc * mrioc,u8 async)3919 int mpi3mr_issue_port_enable(struct mpi3mr_ioc *mrioc, u8 async)
3920 {
3921 struct mpi3_port_enable_request pe_req;
3922 int retval = 0;
3923 u32 pe_timeout = MPI3MR_PORTENABLE_TIMEOUT;
3924
3925 memset(&pe_req, 0, sizeof(pe_req));
3926 mutex_lock(&mrioc->init_cmds.mutex);
3927 if (mrioc->init_cmds.state & MPI3MR_CMD_PENDING) {
3928 retval = -1;
3929 ioc_err(mrioc, "Issue PortEnable: Init command is in use\n");
3930 mutex_unlock(&mrioc->init_cmds.mutex);
3931 goto out;
3932 }
3933 mrioc->init_cmds.state = MPI3MR_CMD_PENDING;
3934 if (async) {
3935 mrioc->init_cmds.is_waiting = 0;
3936 mrioc->init_cmds.callback = mpi3mr_port_enable_complete;
3937 } else {
3938 mrioc->init_cmds.is_waiting = 1;
3939 mrioc->init_cmds.callback = NULL;
3940 init_completion(&mrioc->init_cmds.done);
3941 }
3942 pe_req.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_INITCMDS);
3943 pe_req.function = MPI3_FUNCTION_PORT_ENABLE;
3944
3945 retval = mpi3mr_admin_request_post(mrioc, &pe_req, sizeof(pe_req), 1);
3946 if (retval) {
3947 ioc_err(mrioc, "Issue PortEnable: Admin Post failed\n");
3948 goto out_unlock;
3949 }
3950 if (async) {
3951 mutex_unlock(&mrioc->init_cmds.mutex);
3952 goto out;
3953 }
3954
3955 wait_for_completion_timeout(&mrioc->init_cmds.done, (pe_timeout * HZ));
3956 if (!(mrioc->init_cmds.state & MPI3MR_CMD_COMPLETE)) {
3957 ioc_err(mrioc, "port enable timed out\n");
3958 retval = -1;
3959 mpi3mr_check_rh_fault_ioc(mrioc, MPI3MR_RESET_FROM_PE_TIMEOUT);
3960 goto out_unlock;
3961 }
3962 mpi3mr_port_enable_complete(mrioc, &mrioc->init_cmds);
3963
3964 out_unlock:
3965 mrioc->init_cmds.state = MPI3MR_CMD_NOTUSED;
3966 mutex_unlock(&mrioc->init_cmds.mutex);
3967 out:
3968 return retval;
3969 }
3970
3971 /* Protocol type to name mapper structure */
3972 static const struct {
3973 u8 protocol;
3974 char *name;
3975 } mpi3mr_protocols[] = {
3976 { MPI3_IOCFACTS_PROTOCOL_SCSI_INITIATOR, "Initiator" },
3977 { MPI3_IOCFACTS_PROTOCOL_SCSI_TARGET, "Target" },
3978 { MPI3_IOCFACTS_PROTOCOL_NVME, "NVMe attachment" },
3979 };
3980
3981 /* Capability to name mapper structure*/
3982 static const struct {
3983 u32 capability;
3984 char *name;
3985 } mpi3mr_capabilities[] = {
3986 { MPI3_IOCFACTS_CAPABILITY_RAID_SUPPORTED, "RAID" },
3987 { MPI3_IOCFACTS_CAPABILITY_MULTIPATH_SUPPORTED, "MultiPath" },
3988 };
3989
3990 /**
3991 * mpi3mr_repost_diag_bufs - repost host diag buffers
3992 * @mrioc: Adapter instance reference
3993 *
3994 * repost firmware and trace diag buffers based on global
3995 * trigger flag from driver page 2
3996 *
3997 * Return: 0 on success, non-zero on failures.
3998 */
mpi3mr_repost_diag_bufs(struct mpi3mr_ioc * mrioc)3999 static int mpi3mr_repost_diag_bufs(struct mpi3mr_ioc *mrioc)
4000 {
4001 u64 global_trigger;
4002 union mpi3mr_trigger_data prev_trigger_data;
4003 struct diag_buffer_desc *trace_hdb = NULL;
4004 struct diag_buffer_desc *fw_hdb = NULL;
4005 int retval = 0;
4006 bool trace_repost_needed = false;
4007 bool fw_repost_needed = false;
4008 u8 prev_trigger_type;
4009
4010 retval = mpi3mr_refresh_trigger(mrioc, MPI3_CONFIG_ACTION_READ_CURRENT);
4011 if (retval)
4012 return -1;
4013
4014 trace_hdb = mpi3mr_diag_buffer_for_type(mrioc,
4015 MPI3_DIAG_BUFFER_TYPE_TRACE);
4016
4017 if (trace_hdb &&
4018 trace_hdb->status != MPI3MR_HDB_BUFSTATUS_NOT_ALLOCATED &&
4019 trace_hdb->trigger_type != MPI3MR_HDB_TRIGGER_TYPE_GLOBAL &&
4020 trace_hdb->trigger_type != MPI3MR_HDB_TRIGGER_TYPE_ELEMENT)
4021 trace_repost_needed = true;
4022
4023 fw_hdb = mpi3mr_diag_buffer_for_type(mrioc, MPI3_DIAG_BUFFER_TYPE_FW);
4024
4025 if (fw_hdb && fw_hdb->status != MPI3MR_HDB_BUFSTATUS_NOT_ALLOCATED &&
4026 fw_hdb->trigger_type != MPI3MR_HDB_TRIGGER_TYPE_GLOBAL &&
4027 fw_hdb->trigger_type != MPI3MR_HDB_TRIGGER_TYPE_ELEMENT)
4028 fw_repost_needed = true;
4029
4030 if (trace_repost_needed || fw_repost_needed) {
4031 global_trigger = le64_to_cpu(mrioc->driver_pg2->global_trigger);
4032 if (global_trigger &
4033 MPI3_DRIVER2_GLOBALTRIGGER_POST_DIAG_TRACE_DISABLED)
4034 trace_repost_needed = false;
4035 if (global_trigger &
4036 MPI3_DRIVER2_GLOBALTRIGGER_POST_DIAG_FW_DISABLED)
4037 fw_repost_needed = false;
4038 }
4039
4040 if (trace_repost_needed) {
4041 prev_trigger_type = trace_hdb->trigger_type;
4042 memcpy(&prev_trigger_data, &trace_hdb->trigger_data,
4043 sizeof(trace_hdb->trigger_data));
4044 retval = mpi3mr_issue_diag_buf_post(mrioc, trace_hdb);
4045 if (!retval) {
4046 dprint_init(mrioc, "trace diag buffer reposted");
4047 mpi3mr_set_trigger_data_in_hdb(trace_hdb,
4048 MPI3MR_HDB_TRIGGER_TYPE_UNKNOWN, NULL, 1);
4049 } else {
4050 trace_hdb->trigger_type = prev_trigger_type;
4051 memcpy(&trace_hdb->trigger_data, &prev_trigger_data,
4052 sizeof(prev_trigger_data));
4053 ioc_err(mrioc, "trace diag buffer repost failed");
4054 return -1;
4055 }
4056 }
4057
4058 if (fw_repost_needed) {
4059 prev_trigger_type = fw_hdb->trigger_type;
4060 memcpy(&prev_trigger_data, &fw_hdb->trigger_data,
4061 sizeof(fw_hdb->trigger_data));
4062 retval = mpi3mr_issue_diag_buf_post(mrioc, fw_hdb);
4063 if (!retval) {
4064 dprint_init(mrioc, "firmware diag buffer reposted");
4065 mpi3mr_set_trigger_data_in_hdb(fw_hdb,
4066 MPI3MR_HDB_TRIGGER_TYPE_UNKNOWN, NULL, 1);
4067 } else {
4068 fw_hdb->trigger_type = prev_trigger_type;
4069 memcpy(&fw_hdb->trigger_data, &prev_trigger_data,
4070 sizeof(prev_trigger_data));
4071 ioc_err(mrioc, "firmware diag buffer repost failed");
4072 return -1;
4073 }
4074 }
4075 return retval;
4076 }
4077
4078 /**
4079 * mpi3mr_read_tsu_interval - Update time stamp interval
4080 * @mrioc: Adapter instance reference
4081 *
4082 * Update time stamp interval if its defined in driver page 1,
4083 * otherwise use default value.
4084 *
4085 * Return: Nothing
4086 */
4087 static void
mpi3mr_read_tsu_interval(struct mpi3mr_ioc * mrioc)4088 mpi3mr_read_tsu_interval(struct mpi3mr_ioc *mrioc)
4089 {
4090 struct mpi3_driver_page1 driver_pg1;
4091 u16 pg_sz = sizeof(driver_pg1);
4092 int retval = 0;
4093
4094 mrioc->ts_update_interval = MPI3MR_TSUPDATE_INTERVAL;
4095
4096 retval = mpi3mr_cfg_get_driver_pg1(mrioc, &driver_pg1, pg_sz);
4097 if (!retval && driver_pg1.time_stamp_update)
4098 mrioc->ts_update_interval = (driver_pg1.time_stamp_update * 60);
4099 }
4100
4101 /**
4102 * mpi3mr_print_ioc_info - Display controller information
4103 * @mrioc: Adapter instance reference
4104 *
4105 * Display controller personality, capability, supported
4106 * protocols etc.
4107 *
4108 * Return: Nothing
4109 */
4110 static void
mpi3mr_print_ioc_info(struct mpi3mr_ioc * mrioc)4111 mpi3mr_print_ioc_info(struct mpi3mr_ioc *mrioc)
4112 {
4113 int i = 0, bytes_written = 0;
4114 const char *personality;
4115 char protocol[50] = {0};
4116 char capabilities[100] = {0};
4117 struct mpi3mr_compimg_ver *fwver = &mrioc->facts.fw_ver;
4118
4119 switch (mrioc->facts.personality) {
4120 case MPI3_IOCFACTS_FLAGS_PERSONALITY_EHBA:
4121 personality = "Enhanced HBA";
4122 break;
4123 case MPI3_IOCFACTS_FLAGS_PERSONALITY_RAID_DDR:
4124 personality = "RAID";
4125 break;
4126 default:
4127 personality = "Unknown";
4128 break;
4129 }
4130
4131 ioc_info(mrioc, "Running in %s Personality", personality);
4132
4133 ioc_info(mrioc, "FW version(%d.%d.%d.%d.%d.%d)\n",
4134 fwver->gen_major, fwver->gen_minor, fwver->ph_major,
4135 fwver->ph_minor, fwver->cust_id, fwver->build_num);
4136
4137 for (i = 0; i < ARRAY_SIZE(mpi3mr_protocols); i++) {
4138 if (mrioc->facts.protocol_flags &
4139 mpi3mr_protocols[i].protocol) {
4140 bytes_written += scnprintf(protocol + bytes_written,
4141 sizeof(protocol) - bytes_written, "%s%s",
4142 bytes_written ? "," : "",
4143 mpi3mr_protocols[i].name);
4144 }
4145 }
4146
4147 bytes_written = 0;
4148 for (i = 0; i < ARRAY_SIZE(mpi3mr_capabilities); i++) {
4149 if (mrioc->facts.protocol_flags &
4150 mpi3mr_capabilities[i].capability) {
4151 bytes_written += scnprintf(capabilities + bytes_written,
4152 sizeof(capabilities) - bytes_written, "%s%s",
4153 bytes_written ? "," : "",
4154 mpi3mr_capabilities[i].name);
4155 }
4156 }
4157
4158 ioc_info(mrioc, "Protocol=(%s), Capabilities=(%s)\n",
4159 protocol, capabilities);
4160 }
4161
4162 /**
4163 * mpi3mr_cleanup_resources - Free PCI resources
4164 * @mrioc: Adapter instance reference
4165 *
4166 * Unmap PCI device memory and disable PCI device.
4167 *
4168 * Return: 0 on success and non-zero on failure.
4169 */
mpi3mr_cleanup_resources(struct mpi3mr_ioc * mrioc)4170 void mpi3mr_cleanup_resources(struct mpi3mr_ioc *mrioc)
4171 {
4172 struct pci_dev *pdev = mrioc->pdev;
4173
4174 mpi3mr_cleanup_isr(mrioc);
4175
4176 if (mrioc->sysif_regs) {
4177 iounmap((void __iomem *)mrioc->sysif_regs);
4178 mrioc->sysif_regs = NULL;
4179 }
4180
4181 if (pci_is_enabled(pdev)) {
4182 if (mrioc->bars)
4183 pci_release_selected_regions(pdev, mrioc->bars);
4184 pci_disable_device(pdev);
4185 }
4186 }
4187
4188 /**
4189 * mpi3mr_setup_resources - Enable PCI resources
4190 * @mrioc: Adapter instance reference
4191 *
4192 * Enable PCI device memory, MSI-x registers and set DMA mask.
4193 *
4194 * Return: 0 on success and non-zero on failure.
4195 */
mpi3mr_setup_resources(struct mpi3mr_ioc * mrioc)4196 int mpi3mr_setup_resources(struct mpi3mr_ioc *mrioc)
4197 {
4198 struct pci_dev *pdev = mrioc->pdev;
4199 u32 memap_sz = 0;
4200 int i, retval = 0, capb = 0;
4201 u16 message_control;
4202 u64 dma_mask = mrioc->dma_mask ? mrioc->dma_mask :
4203 ((sizeof(dma_addr_t) > 4) ? DMA_BIT_MASK(64) : DMA_BIT_MASK(32));
4204
4205 if (pci_enable_device_mem(pdev)) {
4206 ioc_err(mrioc, "pci_enable_device_mem: failed\n");
4207 retval = -ENODEV;
4208 goto out_failed;
4209 }
4210
4211 capb = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
4212 if (!capb) {
4213 ioc_err(mrioc, "Unable to find MSI-X Capabilities\n");
4214 retval = -ENODEV;
4215 goto out_failed;
4216 }
4217 mrioc->bars = pci_select_bars(pdev, IORESOURCE_MEM);
4218
4219 if (pci_request_selected_regions(pdev, mrioc->bars,
4220 mrioc->driver_name)) {
4221 ioc_err(mrioc, "pci_request_selected_regions: failed\n");
4222 retval = -ENODEV;
4223 goto out_failed;
4224 }
4225
4226 for (i = 0; (i < DEVICE_COUNT_RESOURCE); i++) {
4227 if (pci_resource_flags(pdev, i) & IORESOURCE_MEM) {
4228 mrioc->sysif_regs_phys = pci_resource_start(pdev, i);
4229 memap_sz = pci_resource_len(pdev, i);
4230 mrioc->sysif_regs =
4231 ioremap(mrioc->sysif_regs_phys, memap_sz);
4232 break;
4233 }
4234 }
4235
4236 pci_set_master(pdev);
4237
4238 retval = dma_set_mask_and_coherent(&pdev->dev, dma_mask);
4239 if (retval) {
4240 if (dma_mask != DMA_BIT_MASK(32)) {
4241 ioc_warn(mrioc, "Setting 64 bit DMA mask failed\n");
4242 dma_mask = DMA_BIT_MASK(32);
4243 retval = dma_set_mask_and_coherent(&pdev->dev,
4244 dma_mask);
4245 }
4246 if (retval) {
4247 mrioc->dma_mask = 0;
4248 ioc_err(mrioc, "Setting 32 bit DMA mask also failed\n");
4249 goto out_failed;
4250 }
4251 }
4252 mrioc->dma_mask = dma_mask;
4253
4254 if (!mrioc->sysif_regs) {
4255 ioc_err(mrioc,
4256 "Unable to map adapter memory or resource not found\n");
4257 retval = -EINVAL;
4258 goto out_failed;
4259 }
4260
4261 pci_read_config_word(pdev, capb + 2, &message_control);
4262 mrioc->msix_count = (message_control & 0x3FF) + 1;
4263
4264 pci_save_state(pdev);
4265
4266 pci_set_drvdata(pdev, mrioc->shost);
4267
4268 mpi3mr_ioc_disable_intr(mrioc);
4269
4270 ioc_info(mrioc, "iomem(0x%016llx), mapped(0x%p), size(%d)\n",
4271 (unsigned long long)mrioc->sysif_regs_phys,
4272 mrioc->sysif_regs, memap_sz);
4273 ioc_info(mrioc, "Number of MSI-X vectors found in capabilities: (%d)\n",
4274 mrioc->msix_count);
4275
4276 if (!reset_devices && poll_queues > 0)
4277 mrioc->requested_poll_qcount = min_t(int, poll_queues,
4278 mrioc->msix_count - 2);
4279 return retval;
4280
4281 out_failed:
4282 mpi3mr_cleanup_resources(mrioc);
4283 return retval;
4284 }
4285
4286 /**
4287 * mpi3mr_enable_events - Enable required events
4288 * @mrioc: Adapter instance reference
4289 *
4290 * This routine unmasks the events required by the driver by
4291 * sennding appropriate event mask bitmapt through an event
4292 * notification request.
4293 *
4294 * Return: 0 on success and non-zero on failure.
4295 */
mpi3mr_enable_events(struct mpi3mr_ioc * mrioc)4296 static int mpi3mr_enable_events(struct mpi3mr_ioc *mrioc)
4297 {
4298 int retval = 0;
4299 u32 i;
4300
4301 for (i = 0; i < MPI3_EVENT_NOTIFY_EVENTMASK_WORDS; i++)
4302 mrioc->event_masks[i] = -1;
4303
4304 mpi3mr_unmask_events(mrioc, MPI3_EVENT_DEVICE_ADDED);
4305 mpi3mr_unmask_events(mrioc, MPI3_EVENT_DEVICE_INFO_CHANGED);
4306 mpi3mr_unmask_events(mrioc, MPI3_EVENT_DEVICE_STATUS_CHANGE);
4307 mpi3mr_unmask_events(mrioc, MPI3_EVENT_ENCL_DEVICE_STATUS_CHANGE);
4308 mpi3mr_unmask_events(mrioc, MPI3_EVENT_ENCL_DEVICE_ADDED);
4309 mpi3mr_unmask_events(mrioc, MPI3_EVENT_SAS_TOPOLOGY_CHANGE_LIST);
4310 mpi3mr_unmask_events(mrioc, MPI3_EVENT_SAS_DISCOVERY);
4311 mpi3mr_unmask_events(mrioc, MPI3_EVENT_SAS_DEVICE_DISCOVERY_ERROR);
4312 mpi3mr_unmask_events(mrioc, MPI3_EVENT_SAS_BROADCAST_PRIMITIVE);
4313 mpi3mr_unmask_events(mrioc, MPI3_EVENT_PCIE_TOPOLOGY_CHANGE_LIST);
4314 mpi3mr_unmask_events(mrioc, MPI3_EVENT_PCIE_ENUMERATION);
4315 mpi3mr_unmask_events(mrioc, MPI3_EVENT_PREPARE_FOR_RESET);
4316 mpi3mr_unmask_events(mrioc, MPI3_EVENT_CABLE_MGMT);
4317 mpi3mr_unmask_events(mrioc, MPI3_EVENT_ENERGY_PACK_CHANGE);
4318 mpi3mr_unmask_events(mrioc, MPI3_EVENT_DIAGNOSTIC_BUFFER_STATUS_CHANGE);
4319
4320 retval = mpi3mr_issue_event_notification(mrioc);
4321 if (retval)
4322 ioc_err(mrioc, "failed to issue event notification %d\n",
4323 retval);
4324 return retval;
4325 }
4326
4327 /**
4328 * mpi3mr_init_ioc - Initialize the controller
4329 * @mrioc: Adapter instance reference
4330 *
4331 * This the controller initialization routine, executed either
4332 * after soft reset or from pci probe callback.
4333 * Setup the required resources, memory map the controller
4334 * registers, create admin and operational reply queue pairs,
4335 * allocate required memory for reply pool, sense buffer pool,
4336 * issue IOC init request to the firmware, unmask the events and
4337 * issue port enable to discover SAS/SATA/NVMe devies and RAID
4338 * volumes.
4339 *
4340 * Return: 0 on success and non-zero on failure.
4341 */
mpi3mr_init_ioc(struct mpi3mr_ioc * mrioc)4342 int mpi3mr_init_ioc(struct mpi3mr_ioc *mrioc)
4343 {
4344 int retval = 0;
4345 u8 retry = 0;
4346 struct mpi3_ioc_facts_data facts_data;
4347 u32 sz;
4348
4349 retry_init:
4350 retval = mpi3mr_bring_ioc_ready(mrioc);
4351 if (retval) {
4352 ioc_err(mrioc, "Failed to bring ioc ready: error %d\n",
4353 retval);
4354 goto out_failed_noretry;
4355 }
4356
4357 retval = mpi3mr_setup_isr(mrioc, 1);
4358 if (retval) {
4359 ioc_err(mrioc, "Failed to setup ISR error %d\n",
4360 retval);
4361 goto out_failed_noretry;
4362 }
4363
4364 retval = mpi3mr_issue_iocfacts(mrioc, &facts_data);
4365 if (retval) {
4366 ioc_err(mrioc, "Failed to Issue IOC Facts %d\n",
4367 retval);
4368 goto out_failed;
4369 }
4370
4371 mrioc->max_host_ios = mrioc->facts.max_reqs - MPI3MR_INTERNAL_CMDS_RESVD;
4372 mrioc->shost->max_sectors = mrioc->facts.max_data_length / 512;
4373 mrioc->num_io_throttle_group = mrioc->facts.max_io_throttle_group;
4374 atomic_set(&mrioc->pend_large_data_sz, 0);
4375
4376 if (reset_devices)
4377 mrioc->max_host_ios = min_t(int, mrioc->max_host_ios,
4378 MPI3MR_HOST_IOS_KDUMP);
4379
4380 if (!(mrioc->facts.ioc_capabilities &
4381 MPI3_IOCFACTS_CAPABILITY_MULTIPATH_SUPPORTED)) {
4382 mrioc->sas_transport_enabled = 1;
4383 mrioc->scsi_device_channel = 1;
4384 mrioc->shost->max_channel = 1;
4385 mrioc->shost->transportt = mpi3mr_transport_template;
4386 }
4387
4388 if (mrioc->facts.max_req_limit)
4389 mrioc->prevent_reply_qfull = true;
4390
4391 if (mrioc->facts.ioc_capabilities &
4392 MPI3_IOCFACTS_CAPABILITY_SEG_DIAG_TRACE_SUPPORTED)
4393 mrioc->seg_tb_support = true;
4394
4395 mrioc->reply_sz = mrioc->facts.reply_sz;
4396
4397 retval = mpi3mr_check_reset_dma_mask(mrioc);
4398 if (retval) {
4399 ioc_err(mrioc, "Resetting dma mask failed %d\n",
4400 retval);
4401 goto out_failed_noretry;
4402 }
4403
4404 mpi3mr_read_tsu_interval(mrioc);
4405 mpi3mr_print_ioc_info(mrioc);
4406
4407 dprint_init(mrioc, "allocating host diag buffers\n");
4408 mpi3mr_alloc_diag_bufs(mrioc);
4409
4410 dprint_init(mrioc, "allocating ioctl dma buffers\n");
4411 mpi3mr_alloc_ioctl_dma_memory(mrioc);
4412
4413 dprint_init(mrioc, "posting host diag buffers\n");
4414 retval = mpi3mr_post_diag_bufs(mrioc);
4415
4416 if (retval)
4417 ioc_warn(mrioc, "failed to post host diag buffers\n");
4418
4419 if (!mrioc->init_cmds.reply) {
4420 retval = mpi3mr_alloc_reply_sense_bufs(mrioc);
4421 if (retval) {
4422 ioc_err(mrioc,
4423 "%s :Failed to allocated reply sense buffers %d\n",
4424 __func__, retval);
4425 goto out_failed_noretry;
4426 }
4427 }
4428
4429 if (!mrioc->chain_sgl_list) {
4430 retval = mpi3mr_alloc_chain_bufs(mrioc);
4431 if (retval) {
4432 ioc_err(mrioc, "Failed to allocated chain buffers %d\n",
4433 retval);
4434 goto out_failed_noretry;
4435 }
4436 }
4437
4438 retval = mpi3mr_issue_iocinit(mrioc);
4439 if (retval) {
4440 ioc_err(mrioc, "Failed to Issue IOC Init %d\n",
4441 retval);
4442 goto out_failed;
4443 }
4444
4445 retval = mpi3mr_print_pkg_ver(mrioc);
4446 if (retval) {
4447 ioc_err(mrioc, "failed to get package version\n");
4448 goto out_failed;
4449 }
4450
4451 retval = mpi3mr_setup_isr(mrioc, 0);
4452 if (retval) {
4453 ioc_err(mrioc, "Failed to re-setup ISR, error %d\n",
4454 retval);
4455 goto out_failed_noretry;
4456 }
4457
4458 retval = mpi3mr_create_op_queues(mrioc);
4459 if (retval) {
4460 ioc_err(mrioc, "Failed to create OpQueues error %d\n",
4461 retval);
4462 goto out_failed;
4463 }
4464
4465 if (!mrioc->pel_seqnum_virt) {
4466 dprint_init(mrioc, "allocating memory for pel_seqnum_virt\n");
4467 mrioc->pel_seqnum_sz = sizeof(struct mpi3_pel_seq);
4468 mrioc->pel_seqnum_virt = dma_alloc_coherent(&mrioc->pdev->dev,
4469 mrioc->pel_seqnum_sz, &mrioc->pel_seqnum_dma,
4470 GFP_KERNEL);
4471 if (!mrioc->pel_seqnum_virt) {
4472 retval = -ENOMEM;
4473 goto out_failed_noretry;
4474 }
4475 }
4476
4477 if (!mrioc->throttle_groups && mrioc->num_io_throttle_group) {
4478 dprint_init(mrioc, "allocating memory for throttle groups\n");
4479 sz = sizeof(struct mpi3mr_throttle_group_info);
4480 mrioc->throttle_groups = kcalloc(mrioc->num_io_throttle_group, sz, GFP_KERNEL);
4481 if (!mrioc->throttle_groups) {
4482 retval = -1;
4483 goto out_failed_noretry;
4484 }
4485 }
4486
4487 retval = mpi3mr_enable_events(mrioc);
4488 if (retval) {
4489 ioc_err(mrioc, "failed to enable events %d\n",
4490 retval);
4491 goto out_failed;
4492 }
4493
4494 retval = mpi3mr_refresh_trigger(mrioc, MPI3_CONFIG_ACTION_READ_CURRENT);
4495 if (retval) {
4496 ioc_err(mrioc, "failed to refresh triggers\n");
4497 goto out_failed;
4498 }
4499
4500 ioc_info(mrioc, "controller initialization completed successfully\n");
4501 return retval;
4502 out_failed:
4503 if (retry < 2) {
4504 retry++;
4505 ioc_warn(mrioc, "retrying controller initialization, retry_count:%d\n",
4506 retry);
4507 mpi3mr_memset_buffers(mrioc);
4508 goto retry_init;
4509 }
4510 retval = -1;
4511 out_failed_noretry:
4512 ioc_err(mrioc, "controller initialization failed\n");
4513 mpi3mr_issue_reset(mrioc, MPI3_SYSIF_HOST_DIAG_RESET_ACTION_DIAG_FAULT,
4514 MPI3MR_RESET_FROM_CTLR_CLEANUP);
4515 mrioc->unrecoverable = 1;
4516 return retval;
4517 }
4518
4519 /**
4520 * mpi3mr_reinit_ioc - Re-Initialize the controller
4521 * @mrioc: Adapter instance reference
4522 * @is_resume: Called from resume or reset path
4523 *
4524 * This the controller re-initialization routine, executed from
4525 * the soft reset handler or resume callback. Creates
4526 * operational reply queue pairs, allocate required memory for
4527 * reply pool, sense buffer pool, issue IOC init request to the
4528 * firmware, unmask the events and issue port enable to discover
4529 * SAS/SATA/NVMe devices and RAID volumes.
4530 *
4531 * Return: 0 on success and non-zero on failure.
4532 */
mpi3mr_reinit_ioc(struct mpi3mr_ioc * mrioc,u8 is_resume)4533 int mpi3mr_reinit_ioc(struct mpi3mr_ioc *mrioc, u8 is_resume)
4534 {
4535 int retval = 0;
4536 u8 retry = 0;
4537 struct mpi3_ioc_facts_data facts_data;
4538 u32 pe_timeout, ioc_status;
4539
4540 retry_init:
4541 pe_timeout =
4542 (MPI3MR_PORTENABLE_TIMEOUT / MPI3MR_PORTENABLE_POLL_INTERVAL);
4543
4544 dprint_reset(mrioc, "bringing up the controller to ready state\n");
4545 retval = mpi3mr_bring_ioc_ready(mrioc);
4546 if (retval) {
4547 ioc_err(mrioc, "failed to bring to ready state\n");
4548 goto out_failed_noretry;
4549 }
4550
4551 mrioc->io_admin_reset_sync = 0;
4552 if (is_resume || mrioc->block_on_pci_err) {
4553 dprint_reset(mrioc, "setting up single ISR\n");
4554 retval = mpi3mr_setup_isr(mrioc, 1);
4555 if (retval) {
4556 ioc_err(mrioc, "failed to setup ISR\n");
4557 goto out_failed_noretry;
4558 }
4559 } else
4560 mpi3mr_ioc_enable_intr(mrioc);
4561
4562 dprint_reset(mrioc, "getting ioc_facts\n");
4563 retval = mpi3mr_issue_iocfacts(mrioc, &facts_data);
4564 if (retval) {
4565 ioc_err(mrioc, "failed to get ioc_facts\n");
4566 goto out_failed;
4567 }
4568
4569 dprint_reset(mrioc, "validating ioc_facts\n");
4570 retval = mpi3mr_revalidate_factsdata(mrioc);
4571 if (retval) {
4572 ioc_err(mrioc, "failed to revalidate ioc_facts data\n");
4573 goto out_failed_noretry;
4574 }
4575
4576 mpi3mr_read_tsu_interval(mrioc);
4577 mpi3mr_print_ioc_info(mrioc);
4578
4579 if (is_resume) {
4580 dprint_reset(mrioc, "posting host diag buffers\n");
4581 retval = mpi3mr_post_diag_bufs(mrioc);
4582 if (retval)
4583 ioc_warn(mrioc, "failed to post host diag buffers\n");
4584 } else {
4585 retval = mpi3mr_repost_diag_bufs(mrioc);
4586 if (retval)
4587 ioc_warn(mrioc, "failed to re post host diag buffers\n");
4588 }
4589
4590 dprint_reset(mrioc, "sending ioc_init\n");
4591 retval = mpi3mr_issue_iocinit(mrioc);
4592 if (retval) {
4593 ioc_err(mrioc, "failed to send ioc_init\n");
4594 goto out_failed;
4595 }
4596
4597 dprint_reset(mrioc, "getting package version\n");
4598 retval = mpi3mr_print_pkg_ver(mrioc);
4599 if (retval) {
4600 ioc_err(mrioc, "failed to get package version\n");
4601 goto out_failed;
4602 }
4603
4604 if (is_resume || mrioc->block_on_pci_err) {
4605 dprint_reset(mrioc, "setting up multiple ISR\n");
4606 retval = mpi3mr_setup_isr(mrioc, 0);
4607 if (retval) {
4608 ioc_err(mrioc, "failed to re-setup ISR\n");
4609 goto out_failed_noretry;
4610 }
4611 }
4612
4613 dprint_reset(mrioc, "creating operational queue pairs\n");
4614 retval = mpi3mr_create_op_queues(mrioc);
4615 if (retval) {
4616 ioc_err(mrioc, "failed to create operational queue pairs\n");
4617 goto out_failed;
4618 }
4619
4620 if (!mrioc->pel_seqnum_virt) {
4621 dprint_reset(mrioc, "allocating memory for pel_seqnum_virt\n");
4622 mrioc->pel_seqnum_sz = sizeof(struct mpi3_pel_seq);
4623 mrioc->pel_seqnum_virt = dma_alloc_coherent(&mrioc->pdev->dev,
4624 mrioc->pel_seqnum_sz, &mrioc->pel_seqnum_dma,
4625 GFP_KERNEL);
4626 if (!mrioc->pel_seqnum_virt) {
4627 retval = -ENOMEM;
4628 goto out_failed_noretry;
4629 }
4630 }
4631
4632 if (mrioc->shost->nr_hw_queues > mrioc->num_op_reply_q) {
4633 ioc_err(mrioc,
4634 "cannot create minimum number of operational queues expected:%d created:%d\n",
4635 mrioc->shost->nr_hw_queues, mrioc->num_op_reply_q);
4636 retval = -1;
4637 goto out_failed_noretry;
4638 }
4639
4640 dprint_reset(mrioc, "enabling events\n");
4641 retval = mpi3mr_enable_events(mrioc);
4642 if (retval) {
4643 ioc_err(mrioc, "failed to enable events\n");
4644 goto out_failed;
4645 }
4646
4647 mrioc->device_refresh_on = 1;
4648 mpi3mr_add_event_wait_for_device_refresh(mrioc);
4649
4650 ioc_info(mrioc, "sending port enable\n");
4651 retval = mpi3mr_issue_port_enable(mrioc, 1);
4652 if (retval) {
4653 ioc_err(mrioc, "failed to issue port enable\n");
4654 goto out_failed;
4655 }
4656 do {
4657 ssleep(MPI3MR_PORTENABLE_POLL_INTERVAL);
4658 if (mrioc->init_cmds.state == MPI3MR_CMD_NOTUSED)
4659 break;
4660 if (!pci_device_is_present(mrioc->pdev))
4661 mrioc->unrecoverable = 1;
4662 if (mrioc->unrecoverable) {
4663 retval = -1;
4664 goto out_failed_noretry;
4665 }
4666 ioc_status = readl(&mrioc->sysif_regs->ioc_status);
4667 if ((ioc_status & MPI3_SYSIF_IOC_STATUS_RESET_HISTORY) ||
4668 (ioc_status & MPI3_SYSIF_IOC_STATUS_FAULT)) {
4669 mpi3mr_print_fault_info(mrioc);
4670 mrioc->init_cmds.is_waiting = 0;
4671 mrioc->init_cmds.callback = NULL;
4672 mrioc->init_cmds.state = MPI3MR_CMD_NOTUSED;
4673 goto out_failed;
4674 }
4675 } while (--pe_timeout);
4676
4677 if (!pe_timeout) {
4678 ioc_err(mrioc, "port enable timed out\n");
4679 mpi3mr_check_rh_fault_ioc(mrioc,
4680 MPI3MR_RESET_FROM_PE_TIMEOUT);
4681 mrioc->init_cmds.is_waiting = 0;
4682 mrioc->init_cmds.callback = NULL;
4683 mrioc->init_cmds.state = MPI3MR_CMD_NOTUSED;
4684 goto out_failed;
4685 } else if (mrioc->scan_failed) {
4686 ioc_err(mrioc,
4687 "port enable failed with status=0x%04x\n",
4688 mrioc->scan_failed);
4689 } else
4690 ioc_info(mrioc, "port enable completed successfully\n");
4691
4692 ioc_info(mrioc, "controller %s completed successfully\n",
4693 (is_resume)?"resume":"re-initialization");
4694 return retval;
4695 out_failed:
4696 if (retry < 2) {
4697 retry++;
4698 ioc_warn(mrioc, "retrying controller %s, retry_count:%d\n",
4699 (is_resume)?"resume":"re-initialization", retry);
4700 mpi3mr_memset_buffers(mrioc);
4701 goto retry_init;
4702 }
4703 retval = -1;
4704 out_failed_noretry:
4705 ioc_err(mrioc, "controller %s is failed\n",
4706 (is_resume)?"resume":"re-initialization");
4707 mpi3mr_issue_reset(mrioc, MPI3_SYSIF_HOST_DIAG_RESET_ACTION_DIAG_FAULT,
4708 MPI3MR_RESET_FROM_CTLR_CLEANUP);
4709 mrioc->unrecoverable = 1;
4710 return retval;
4711 }
4712
4713 /**
4714 * mpi3mr_memset_op_reply_q_buffers - memset the operational reply queue's
4715 * segments
4716 * @mrioc: Adapter instance reference
4717 * @qidx: Operational reply queue index
4718 *
4719 * Return: Nothing.
4720 */
mpi3mr_memset_op_reply_q_buffers(struct mpi3mr_ioc * mrioc,u16 qidx)4721 static void mpi3mr_memset_op_reply_q_buffers(struct mpi3mr_ioc *mrioc, u16 qidx)
4722 {
4723 struct op_reply_qinfo *op_reply_q = mrioc->op_reply_qinfo + qidx;
4724 struct segments *segments;
4725 int i, size;
4726
4727 if (!op_reply_q->q_segments)
4728 return;
4729
4730 size = op_reply_q->segment_qd * mrioc->op_reply_desc_sz;
4731 segments = op_reply_q->q_segments;
4732 for (i = 0; i < op_reply_q->num_segments; i++)
4733 memset(segments[i].segment, 0, size);
4734 }
4735
4736 /**
4737 * mpi3mr_memset_op_req_q_buffers - memset the operational request queue's
4738 * segments
4739 * @mrioc: Adapter instance reference
4740 * @qidx: Operational request queue index
4741 *
4742 * Return: Nothing.
4743 */
mpi3mr_memset_op_req_q_buffers(struct mpi3mr_ioc * mrioc,u16 qidx)4744 static void mpi3mr_memset_op_req_q_buffers(struct mpi3mr_ioc *mrioc, u16 qidx)
4745 {
4746 struct op_req_qinfo *op_req_q = mrioc->req_qinfo + qidx;
4747 struct segments *segments;
4748 int i, size;
4749
4750 if (!op_req_q->q_segments)
4751 return;
4752
4753 size = op_req_q->segment_qd * mrioc->facts.op_req_sz;
4754 segments = op_req_q->q_segments;
4755 for (i = 0; i < op_req_q->num_segments; i++)
4756 memset(segments[i].segment, 0, size);
4757 }
4758
4759 /**
4760 * mpi3mr_memset_buffers - memset memory for a controller
4761 * @mrioc: Adapter instance reference
4762 *
4763 * clear all the memory allocated for a controller, typically
4764 * called post reset to reuse the memory allocated during the
4765 * controller init.
4766 *
4767 * Return: Nothing.
4768 */
mpi3mr_memset_buffers(struct mpi3mr_ioc * mrioc)4769 void mpi3mr_memset_buffers(struct mpi3mr_ioc *mrioc)
4770 {
4771 u16 i;
4772 struct mpi3mr_throttle_group_info *tg;
4773
4774 mrioc->change_count = 0;
4775 mrioc->active_poll_qcount = 0;
4776 mrioc->default_qcount = 0;
4777 if (mrioc->admin_req_base)
4778 memset(mrioc->admin_req_base, 0, mrioc->admin_req_q_sz);
4779 if (mrioc->admin_reply_base)
4780 memset(mrioc->admin_reply_base, 0, mrioc->admin_reply_q_sz);
4781 atomic_set(&mrioc->admin_reply_q_in_use, 0);
4782 atomic_set(&mrioc->admin_pend_isr, 0);
4783
4784 if (mrioc->init_cmds.reply) {
4785 memset(mrioc->init_cmds.reply, 0, sizeof(*mrioc->init_cmds.reply));
4786 memset(mrioc->bsg_cmds.reply, 0,
4787 sizeof(*mrioc->bsg_cmds.reply));
4788 memset(mrioc->host_tm_cmds.reply, 0,
4789 sizeof(*mrioc->host_tm_cmds.reply));
4790 memset(mrioc->pel_cmds.reply, 0,
4791 sizeof(*mrioc->pel_cmds.reply));
4792 memset(mrioc->pel_abort_cmd.reply, 0,
4793 sizeof(*mrioc->pel_abort_cmd.reply));
4794 memset(mrioc->transport_cmds.reply, 0,
4795 sizeof(*mrioc->transport_cmds.reply));
4796 for (i = 0; i < MPI3MR_NUM_DEVRMCMD; i++)
4797 memset(mrioc->dev_rmhs_cmds[i].reply, 0,
4798 sizeof(*mrioc->dev_rmhs_cmds[i].reply));
4799 for (i = 0; i < MPI3MR_NUM_EVTACKCMD; i++)
4800 memset(mrioc->evtack_cmds[i].reply, 0,
4801 sizeof(*mrioc->evtack_cmds[i].reply));
4802 bitmap_clear(mrioc->removepend_bitmap, 0,
4803 mrioc->dev_handle_bitmap_bits);
4804 bitmap_clear(mrioc->devrem_bitmap, 0, MPI3MR_NUM_DEVRMCMD);
4805 bitmap_clear(mrioc->evtack_cmds_bitmap, 0,
4806 MPI3MR_NUM_EVTACKCMD);
4807 }
4808
4809 for (i = 0; i < mrioc->num_queues; i++) {
4810 if (mrioc->op_reply_qinfo) {
4811 mrioc->op_reply_qinfo[i].qid = 0;
4812 mrioc->op_reply_qinfo[i].ci = 0;
4813 mrioc->op_reply_qinfo[i].num_replies = 0;
4814 mrioc->op_reply_qinfo[i].ephase = 0;
4815 atomic_set(&mrioc->op_reply_qinfo[i].pend_ios, 0);
4816 atomic_set(&mrioc->op_reply_qinfo[i].in_use, 0);
4817 mpi3mr_memset_op_reply_q_buffers(mrioc, i);
4818 }
4819
4820 if (mrioc->req_qinfo) {
4821 mrioc->req_qinfo[i].ci = 0;
4822 mrioc->req_qinfo[i].pi = 0;
4823 mrioc->req_qinfo[i].num_requests = 0;
4824 mrioc->req_qinfo[i].qid = 0;
4825 mrioc->req_qinfo[i].reply_qid = 0;
4826 spin_lock_init(&mrioc->req_qinfo[i].q_lock);
4827 mpi3mr_memset_op_req_q_buffers(mrioc, i);
4828 }
4829 }
4830
4831 atomic_set(&mrioc->pend_large_data_sz, 0);
4832 if (mrioc->throttle_groups) {
4833 tg = mrioc->throttle_groups;
4834 for (i = 0; i < mrioc->num_io_throttle_group; i++, tg++) {
4835 tg->id = 0;
4836 tg->fw_qd = 0;
4837 tg->modified_qd = 0;
4838 tg->io_divert = 0;
4839 tg->need_qd_reduction = 0;
4840 tg->high = 0;
4841 tg->low = 0;
4842 tg->qd_reduction = 0;
4843 atomic_set(&tg->pend_large_data_sz, 0);
4844 }
4845 }
4846 }
4847
4848 /**
4849 * mpi3mr_free_mem - Free memory allocated for a controller
4850 * @mrioc: Adapter instance reference
4851 *
4852 * Free all the memory allocated for a controller.
4853 *
4854 * Return: Nothing.
4855 */
mpi3mr_free_mem(struct mpi3mr_ioc * mrioc)4856 void mpi3mr_free_mem(struct mpi3mr_ioc *mrioc)
4857 {
4858 u16 i, j;
4859 struct mpi3mr_intr_info *intr_info;
4860 struct diag_buffer_desc *diag_buffer;
4861
4862 mpi3mr_free_enclosure_list(mrioc);
4863 mpi3mr_free_ioctl_dma_memory(mrioc);
4864
4865 if (mrioc->sense_buf_pool) {
4866 if (mrioc->sense_buf)
4867 dma_pool_free(mrioc->sense_buf_pool, mrioc->sense_buf,
4868 mrioc->sense_buf_dma);
4869 dma_pool_destroy(mrioc->sense_buf_pool);
4870 mrioc->sense_buf = NULL;
4871 mrioc->sense_buf_pool = NULL;
4872 }
4873 if (mrioc->sense_buf_q_pool) {
4874 if (mrioc->sense_buf_q)
4875 dma_pool_free(mrioc->sense_buf_q_pool,
4876 mrioc->sense_buf_q, mrioc->sense_buf_q_dma);
4877 dma_pool_destroy(mrioc->sense_buf_q_pool);
4878 mrioc->sense_buf_q = NULL;
4879 mrioc->sense_buf_q_pool = NULL;
4880 }
4881
4882 if (mrioc->reply_buf_pool) {
4883 if (mrioc->reply_buf)
4884 dma_pool_free(mrioc->reply_buf_pool, mrioc->reply_buf,
4885 mrioc->reply_buf_dma);
4886 dma_pool_destroy(mrioc->reply_buf_pool);
4887 mrioc->reply_buf = NULL;
4888 mrioc->reply_buf_pool = NULL;
4889 }
4890 if (mrioc->reply_free_q_pool) {
4891 if (mrioc->reply_free_q)
4892 dma_pool_free(mrioc->reply_free_q_pool,
4893 mrioc->reply_free_q, mrioc->reply_free_q_dma);
4894 dma_pool_destroy(mrioc->reply_free_q_pool);
4895 mrioc->reply_free_q = NULL;
4896 mrioc->reply_free_q_pool = NULL;
4897 }
4898
4899 for (i = 0; i < mrioc->num_op_req_q; i++)
4900 mpi3mr_free_op_req_q_segments(mrioc, i);
4901
4902 for (i = 0; i < mrioc->num_op_reply_q; i++)
4903 mpi3mr_free_op_reply_q_segments(mrioc, i);
4904
4905 for (i = 0; i < mrioc->intr_info_count; i++) {
4906 intr_info = mrioc->intr_info + i;
4907 intr_info->op_reply_q = NULL;
4908 }
4909
4910 kfree(mrioc->req_qinfo);
4911 mrioc->req_qinfo = NULL;
4912 mrioc->num_op_req_q = 0;
4913
4914 kfree(mrioc->op_reply_qinfo);
4915 mrioc->op_reply_qinfo = NULL;
4916 mrioc->num_op_reply_q = 0;
4917
4918 kfree(mrioc->init_cmds.reply);
4919 mrioc->init_cmds.reply = NULL;
4920
4921 kfree(mrioc->bsg_cmds.reply);
4922 mrioc->bsg_cmds.reply = NULL;
4923
4924 kfree(mrioc->host_tm_cmds.reply);
4925 mrioc->host_tm_cmds.reply = NULL;
4926
4927 kfree(mrioc->pel_cmds.reply);
4928 mrioc->pel_cmds.reply = NULL;
4929
4930 kfree(mrioc->pel_abort_cmd.reply);
4931 mrioc->pel_abort_cmd.reply = NULL;
4932
4933 for (i = 0; i < MPI3MR_NUM_EVTACKCMD; i++) {
4934 kfree(mrioc->evtack_cmds[i].reply);
4935 mrioc->evtack_cmds[i].reply = NULL;
4936 }
4937
4938 bitmap_free(mrioc->removepend_bitmap);
4939 mrioc->removepend_bitmap = NULL;
4940
4941 bitmap_free(mrioc->devrem_bitmap);
4942 mrioc->devrem_bitmap = NULL;
4943
4944 bitmap_free(mrioc->evtack_cmds_bitmap);
4945 mrioc->evtack_cmds_bitmap = NULL;
4946
4947 bitmap_free(mrioc->chain_bitmap);
4948 mrioc->chain_bitmap = NULL;
4949
4950 kfree(mrioc->transport_cmds.reply);
4951 mrioc->transport_cmds.reply = NULL;
4952
4953 for (i = 0; i < MPI3MR_NUM_DEVRMCMD; i++) {
4954 kfree(mrioc->dev_rmhs_cmds[i].reply);
4955 mrioc->dev_rmhs_cmds[i].reply = NULL;
4956 }
4957
4958 if (mrioc->chain_buf_pool) {
4959 for (i = 0; i < mrioc->chain_buf_count; i++) {
4960 if (mrioc->chain_sgl_list[i].addr) {
4961 dma_pool_free(mrioc->chain_buf_pool,
4962 mrioc->chain_sgl_list[i].addr,
4963 mrioc->chain_sgl_list[i].dma_addr);
4964 mrioc->chain_sgl_list[i].addr = NULL;
4965 }
4966 }
4967 dma_pool_destroy(mrioc->chain_buf_pool);
4968 mrioc->chain_buf_pool = NULL;
4969 }
4970
4971 kfree(mrioc->chain_sgl_list);
4972 mrioc->chain_sgl_list = NULL;
4973
4974 if (mrioc->admin_reply_base) {
4975 dma_free_coherent(&mrioc->pdev->dev, mrioc->admin_reply_q_sz,
4976 mrioc->admin_reply_base, mrioc->admin_reply_dma);
4977 mrioc->admin_reply_base = NULL;
4978 }
4979 if (mrioc->admin_req_base) {
4980 dma_free_coherent(&mrioc->pdev->dev, mrioc->admin_req_q_sz,
4981 mrioc->admin_req_base, mrioc->admin_req_dma);
4982 mrioc->admin_req_base = NULL;
4983 }
4984
4985 if (mrioc->pel_seqnum_virt) {
4986 dma_free_coherent(&mrioc->pdev->dev, mrioc->pel_seqnum_sz,
4987 mrioc->pel_seqnum_virt, mrioc->pel_seqnum_dma);
4988 mrioc->pel_seqnum_virt = NULL;
4989 }
4990
4991 for (i = 0; i < MPI3MR_MAX_NUM_HDB; i++) {
4992 diag_buffer = &mrioc->diag_buffers[i];
4993 if ((i == 0) && mrioc->seg_tb_support) {
4994 if (mrioc->trace_buf_pool) {
4995 for (j = 0; j < mrioc->num_tb_segs; j++) {
4996 if (mrioc->trace_buf[j].segment) {
4997 dma_pool_free(mrioc->trace_buf_pool,
4998 mrioc->trace_buf[j].segment,
4999 mrioc->trace_buf[j].segment_dma);
5000 mrioc->trace_buf[j].segment = NULL;
5001 }
5002
5003 mrioc->trace_buf[j].segment = NULL;
5004 }
5005 dma_pool_destroy(mrioc->trace_buf_pool);
5006 mrioc->trace_buf_pool = NULL;
5007 }
5008
5009 kfree(mrioc->trace_buf);
5010 mrioc->trace_buf = NULL;
5011 diag_buffer->size = sizeof(u64) * mrioc->num_tb_segs;
5012 }
5013 if (diag_buffer->addr) {
5014 dma_free_coherent(&mrioc->pdev->dev,
5015 diag_buffer->size, diag_buffer->addr,
5016 diag_buffer->dma_addr);
5017 diag_buffer->addr = NULL;
5018 diag_buffer->size = 0;
5019 diag_buffer->type = 0;
5020 diag_buffer->status = 0;
5021 }
5022 }
5023
5024 kfree(mrioc->throttle_groups);
5025 mrioc->throttle_groups = NULL;
5026
5027 kfree(mrioc->logdata_buf);
5028 mrioc->logdata_buf = NULL;
5029
5030 }
5031
5032 /**
5033 * mpi3mr_issue_ioc_shutdown - shutdown controller
5034 * @mrioc: Adapter instance reference
5035 *
5036 * Send shutodwn notification to the controller and wait for the
5037 * shutdown_timeout for it to be completed.
5038 *
5039 * Return: Nothing.
5040 */
mpi3mr_issue_ioc_shutdown(struct mpi3mr_ioc * mrioc)5041 static void mpi3mr_issue_ioc_shutdown(struct mpi3mr_ioc *mrioc)
5042 {
5043 u32 ioc_config, ioc_status;
5044 u8 retval = 1;
5045 u32 timeout = MPI3MR_DEFAULT_SHUTDOWN_TIME * 10;
5046
5047 ioc_info(mrioc, "Issuing shutdown Notification\n");
5048 if (mrioc->unrecoverable) {
5049 ioc_warn(mrioc,
5050 "IOC is unrecoverable shutdown is not issued\n");
5051 return;
5052 }
5053 ioc_status = readl(&mrioc->sysif_regs->ioc_status);
5054 if ((ioc_status & MPI3_SYSIF_IOC_STATUS_SHUTDOWN_MASK)
5055 == MPI3_SYSIF_IOC_STATUS_SHUTDOWN_IN_PROGRESS) {
5056 ioc_info(mrioc, "shutdown already in progress\n");
5057 return;
5058 }
5059
5060 ioc_config = readl(&mrioc->sysif_regs->ioc_configuration);
5061 ioc_config |= MPI3_SYSIF_IOC_CONFIG_SHUTDOWN_NORMAL;
5062 ioc_config |= MPI3_SYSIF_IOC_CONFIG_DEVICE_SHUTDOWN_SEND_REQ;
5063
5064 writel(ioc_config, &mrioc->sysif_regs->ioc_configuration);
5065
5066 if (mrioc->facts.shutdown_timeout)
5067 timeout = mrioc->facts.shutdown_timeout * 10;
5068
5069 do {
5070 ioc_status = readl(&mrioc->sysif_regs->ioc_status);
5071 if ((ioc_status & MPI3_SYSIF_IOC_STATUS_SHUTDOWN_MASK)
5072 == MPI3_SYSIF_IOC_STATUS_SHUTDOWN_COMPLETE) {
5073 retval = 0;
5074 break;
5075 }
5076 msleep(100);
5077 } while (--timeout);
5078
5079 ioc_status = readl(&mrioc->sysif_regs->ioc_status);
5080 ioc_config = readl(&mrioc->sysif_regs->ioc_configuration);
5081
5082 if (retval) {
5083 if ((ioc_status & MPI3_SYSIF_IOC_STATUS_SHUTDOWN_MASK)
5084 == MPI3_SYSIF_IOC_STATUS_SHUTDOWN_IN_PROGRESS)
5085 ioc_warn(mrioc,
5086 "shutdown still in progress after timeout\n");
5087 }
5088
5089 ioc_info(mrioc,
5090 "Base IOC Sts/Config after %s shutdown is (0x%08x)/(0x%08x)\n",
5091 (!retval) ? "successful" : "failed", ioc_status,
5092 ioc_config);
5093 }
5094
5095 /**
5096 * mpi3mr_cleanup_ioc - Cleanup controller
5097 * @mrioc: Adapter instance reference
5098 *
5099 * controller cleanup handler, Message unit reset or soft reset
5100 * and shutdown notification is issued to the controller.
5101 *
5102 * Return: Nothing.
5103 */
mpi3mr_cleanup_ioc(struct mpi3mr_ioc * mrioc)5104 void mpi3mr_cleanup_ioc(struct mpi3mr_ioc *mrioc)
5105 {
5106 enum mpi3mr_iocstate ioc_state;
5107
5108 dprint_exit(mrioc, "cleaning up the controller\n");
5109 mpi3mr_ioc_disable_intr(mrioc);
5110
5111 ioc_state = mpi3mr_get_iocstate(mrioc);
5112
5113 if (!mrioc->unrecoverable && !mrioc->reset_in_progress &&
5114 !mrioc->pci_err_recovery &&
5115 (ioc_state == MRIOC_STATE_READY)) {
5116 if (mpi3mr_issue_and_process_mur(mrioc,
5117 MPI3MR_RESET_FROM_CTLR_CLEANUP))
5118 mpi3mr_issue_reset(mrioc,
5119 MPI3_SYSIF_HOST_DIAG_RESET_ACTION_SOFT_RESET,
5120 MPI3MR_RESET_FROM_MUR_FAILURE);
5121 mpi3mr_issue_ioc_shutdown(mrioc);
5122 }
5123 dprint_exit(mrioc, "controller cleanup completed\n");
5124 }
5125
5126 /**
5127 * mpi3mr_drv_cmd_comp_reset - Flush a internal driver command
5128 * @mrioc: Adapter instance reference
5129 * @cmdptr: Internal command tracker
5130 *
5131 * Complete an internal driver commands with state indicating it
5132 * is completed due to reset.
5133 *
5134 * Return: Nothing.
5135 */
mpi3mr_drv_cmd_comp_reset(struct mpi3mr_ioc * mrioc,struct mpi3mr_drv_cmd * cmdptr)5136 static inline void mpi3mr_drv_cmd_comp_reset(struct mpi3mr_ioc *mrioc,
5137 struct mpi3mr_drv_cmd *cmdptr)
5138 {
5139 if (cmdptr->state & MPI3MR_CMD_PENDING) {
5140 cmdptr->state |= MPI3MR_CMD_RESET;
5141 cmdptr->state &= ~MPI3MR_CMD_PENDING;
5142 if (cmdptr->is_waiting) {
5143 complete(&cmdptr->done);
5144 cmdptr->is_waiting = 0;
5145 } else if (cmdptr->callback)
5146 cmdptr->callback(mrioc, cmdptr);
5147 }
5148 }
5149
5150 /**
5151 * mpi3mr_flush_drv_cmds - Flush internaldriver commands
5152 * @mrioc: Adapter instance reference
5153 *
5154 * Flush all internal driver commands post reset
5155 *
5156 * Return: Nothing.
5157 */
mpi3mr_flush_drv_cmds(struct mpi3mr_ioc * mrioc)5158 void mpi3mr_flush_drv_cmds(struct mpi3mr_ioc *mrioc)
5159 {
5160 struct mpi3mr_drv_cmd *cmdptr;
5161 u8 i;
5162
5163 cmdptr = &mrioc->init_cmds;
5164 mpi3mr_drv_cmd_comp_reset(mrioc, cmdptr);
5165
5166 cmdptr = &mrioc->cfg_cmds;
5167 mpi3mr_drv_cmd_comp_reset(mrioc, cmdptr);
5168
5169 cmdptr = &mrioc->bsg_cmds;
5170 mpi3mr_drv_cmd_comp_reset(mrioc, cmdptr);
5171 cmdptr = &mrioc->host_tm_cmds;
5172 mpi3mr_drv_cmd_comp_reset(mrioc, cmdptr);
5173
5174 for (i = 0; i < MPI3MR_NUM_DEVRMCMD; i++) {
5175 cmdptr = &mrioc->dev_rmhs_cmds[i];
5176 mpi3mr_drv_cmd_comp_reset(mrioc, cmdptr);
5177 }
5178
5179 for (i = 0; i < MPI3MR_NUM_EVTACKCMD; i++) {
5180 cmdptr = &mrioc->evtack_cmds[i];
5181 mpi3mr_drv_cmd_comp_reset(mrioc, cmdptr);
5182 }
5183
5184 cmdptr = &mrioc->pel_cmds;
5185 mpi3mr_drv_cmd_comp_reset(mrioc, cmdptr);
5186
5187 cmdptr = &mrioc->pel_abort_cmd;
5188 mpi3mr_drv_cmd_comp_reset(mrioc, cmdptr);
5189
5190 cmdptr = &mrioc->transport_cmds;
5191 mpi3mr_drv_cmd_comp_reset(mrioc, cmdptr);
5192 }
5193
5194 /**
5195 * mpi3mr_pel_wait_post - Issue PEL Wait
5196 * @mrioc: Adapter instance reference
5197 * @drv_cmd: Internal command tracker
5198 *
5199 * Issue PEL Wait MPI request through admin queue and return.
5200 *
5201 * Return: Nothing.
5202 */
mpi3mr_pel_wait_post(struct mpi3mr_ioc * mrioc,struct mpi3mr_drv_cmd * drv_cmd)5203 static void mpi3mr_pel_wait_post(struct mpi3mr_ioc *mrioc,
5204 struct mpi3mr_drv_cmd *drv_cmd)
5205 {
5206 struct mpi3_pel_req_action_wait pel_wait;
5207
5208 mrioc->pel_abort_requested = false;
5209
5210 memset(&pel_wait, 0, sizeof(pel_wait));
5211 drv_cmd->state = MPI3MR_CMD_PENDING;
5212 drv_cmd->is_waiting = 0;
5213 drv_cmd->callback = mpi3mr_pel_wait_complete;
5214 drv_cmd->ioc_status = 0;
5215 drv_cmd->ioc_loginfo = 0;
5216 pel_wait.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_PEL_WAIT);
5217 pel_wait.function = MPI3_FUNCTION_PERSISTENT_EVENT_LOG;
5218 pel_wait.action = MPI3_PEL_ACTION_WAIT;
5219 pel_wait.starting_sequence_number = cpu_to_le32(mrioc->pel_newest_seqnum);
5220 pel_wait.locale = cpu_to_le16(mrioc->pel_locale);
5221 pel_wait.class = cpu_to_le16(mrioc->pel_class);
5222 pel_wait.wait_time = MPI3_PEL_WAITTIME_INFINITE_WAIT;
5223 dprint_bsg_info(mrioc, "sending pel_wait seqnum(%d), class(%d), locale(0x%08x)\n",
5224 mrioc->pel_newest_seqnum, mrioc->pel_class, mrioc->pel_locale);
5225
5226 if (mpi3mr_admin_request_post(mrioc, &pel_wait, sizeof(pel_wait), 0)) {
5227 dprint_bsg_err(mrioc,
5228 "Issuing PELWait: Admin post failed\n");
5229 drv_cmd->state = MPI3MR_CMD_NOTUSED;
5230 drv_cmd->callback = NULL;
5231 drv_cmd->retry_count = 0;
5232 mrioc->pel_enabled = false;
5233 }
5234 }
5235
5236 /**
5237 * mpi3mr_pel_get_seqnum_post - Issue PEL Get Sequence number
5238 * @mrioc: Adapter instance reference
5239 * @drv_cmd: Internal command tracker
5240 *
5241 * Issue PEL get sequence number MPI request through admin queue
5242 * and return.
5243 *
5244 * Return: 0 on success, non-zero on failure.
5245 */
mpi3mr_pel_get_seqnum_post(struct mpi3mr_ioc * mrioc,struct mpi3mr_drv_cmd * drv_cmd)5246 int mpi3mr_pel_get_seqnum_post(struct mpi3mr_ioc *mrioc,
5247 struct mpi3mr_drv_cmd *drv_cmd)
5248 {
5249 struct mpi3_pel_req_action_get_sequence_numbers pel_getseq_req;
5250 u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
5251 int retval = 0;
5252
5253 memset(&pel_getseq_req, 0, sizeof(pel_getseq_req));
5254 mrioc->pel_cmds.state = MPI3MR_CMD_PENDING;
5255 mrioc->pel_cmds.is_waiting = 0;
5256 mrioc->pel_cmds.ioc_status = 0;
5257 mrioc->pel_cmds.ioc_loginfo = 0;
5258 mrioc->pel_cmds.callback = mpi3mr_pel_get_seqnum_complete;
5259 pel_getseq_req.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_PEL_WAIT);
5260 pel_getseq_req.function = MPI3_FUNCTION_PERSISTENT_EVENT_LOG;
5261 pel_getseq_req.action = MPI3_PEL_ACTION_GET_SEQNUM;
5262 mpi3mr_add_sg_single(&pel_getseq_req.sgl, sgl_flags,
5263 mrioc->pel_seqnum_sz, mrioc->pel_seqnum_dma);
5264
5265 retval = mpi3mr_admin_request_post(mrioc, &pel_getseq_req,
5266 sizeof(pel_getseq_req), 0);
5267 if (retval) {
5268 if (drv_cmd) {
5269 drv_cmd->state = MPI3MR_CMD_NOTUSED;
5270 drv_cmd->callback = NULL;
5271 drv_cmd->retry_count = 0;
5272 }
5273 mrioc->pel_enabled = false;
5274 }
5275
5276 return retval;
5277 }
5278
5279 /**
5280 * mpi3mr_pel_wait_complete - PELWait Completion callback
5281 * @mrioc: Adapter instance reference
5282 * @drv_cmd: Internal command tracker
5283 *
5284 * This is a callback handler for the PELWait request and
5285 * firmware completes a PELWait request when it is aborted or a
5286 * new PEL entry is available. This sends AEN to the application
5287 * and if the PELwait completion is not due to PELAbort then
5288 * this will send a request for new PEL Sequence number
5289 *
5290 * Return: Nothing.
5291 */
mpi3mr_pel_wait_complete(struct mpi3mr_ioc * mrioc,struct mpi3mr_drv_cmd * drv_cmd)5292 static void mpi3mr_pel_wait_complete(struct mpi3mr_ioc *mrioc,
5293 struct mpi3mr_drv_cmd *drv_cmd)
5294 {
5295 struct mpi3_pel_reply *pel_reply = NULL;
5296 u16 ioc_status, pe_log_status;
5297 bool do_retry = false;
5298
5299 if (drv_cmd->state & MPI3MR_CMD_RESET)
5300 goto cleanup_drv_cmd;
5301
5302 ioc_status = drv_cmd->ioc_status & MPI3_IOCSTATUS_STATUS_MASK;
5303 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
5304 ioc_err(mrioc, "%s: Failed ioc_status(0x%04x) Loginfo(0x%08x)\n",
5305 __func__, ioc_status, drv_cmd->ioc_loginfo);
5306 dprint_bsg_err(mrioc,
5307 "pel_wait: failed with ioc_status(0x%04x), log_info(0x%08x)\n",
5308 ioc_status, drv_cmd->ioc_loginfo);
5309 do_retry = true;
5310 }
5311
5312 if (drv_cmd->state & MPI3MR_CMD_REPLY_VALID)
5313 pel_reply = (struct mpi3_pel_reply *)drv_cmd->reply;
5314
5315 if (!pel_reply) {
5316 dprint_bsg_err(mrioc,
5317 "pel_wait: failed due to no reply\n");
5318 goto out_failed;
5319 }
5320
5321 pe_log_status = le16_to_cpu(pel_reply->pe_log_status);
5322 if ((pe_log_status != MPI3_PEL_STATUS_SUCCESS) &&
5323 (pe_log_status != MPI3_PEL_STATUS_ABORTED)) {
5324 ioc_err(mrioc, "%s: Failed pe_log_status(0x%04x)\n",
5325 __func__, pe_log_status);
5326 dprint_bsg_err(mrioc,
5327 "pel_wait: failed due to pel_log_status(0x%04x)\n",
5328 pe_log_status);
5329 do_retry = true;
5330 }
5331
5332 if (do_retry) {
5333 if (drv_cmd->retry_count < MPI3MR_PEL_RETRY_COUNT) {
5334 drv_cmd->retry_count++;
5335 dprint_bsg_err(mrioc, "pel_wait: retrying(%d)\n",
5336 drv_cmd->retry_count);
5337 mpi3mr_pel_wait_post(mrioc, drv_cmd);
5338 return;
5339 }
5340 dprint_bsg_err(mrioc,
5341 "pel_wait: failed after all retries(%d)\n",
5342 drv_cmd->retry_count);
5343 goto out_failed;
5344 }
5345 atomic64_inc(&event_counter);
5346 if (!mrioc->pel_abort_requested) {
5347 mrioc->pel_cmds.retry_count = 0;
5348 mpi3mr_pel_get_seqnum_post(mrioc, &mrioc->pel_cmds);
5349 }
5350
5351 return;
5352 out_failed:
5353 mrioc->pel_enabled = false;
5354 cleanup_drv_cmd:
5355 drv_cmd->state = MPI3MR_CMD_NOTUSED;
5356 drv_cmd->callback = NULL;
5357 drv_cmd->retry_count = 0;
5358 }
5359
5360 /**
5361 * mpi3mr_pel_get_seqnum_complete - PELGetSeqNum Completion callback
5362 * @mrioc: Adapter instance reference
5363 * @drv_cmd: Internal command tracker
5364 *
5365 * This is a callback handler for the PEL get sequence number
5366 * request and a new PEL wait request will be issued to the
5367 * firmware from this
5368 *
5369 * Return: Nothing.
5370 */
mpi3mr_pel_get_seqnum_complete(struct mpi3mr_ioc * mrioc,struct mpi3mr_drv_cmd * drv_cmd)5371 void mpi3mr_pel_get_seqnum_complete(struct mpi3mr_ioc *mrioc,
5372 struct mpi3mr_drv_cmd *drv_cmd)
5373 {
5374 struct mpi3_pel_reply *pel_reply = NULL;
5375 struct mpi3_pel_seq *pel_seqnum_virt;
5376 u16 ioc_status;
5377 bool do_retry = false;
5378
5379 pel_seqnum_virt = (struct mpi3_pel_seq *)mrioc->pel_seqnum_virt;
5380
5381 if (drv_cmd->state & MPI3MR_CMD_RESET)
5382 goto cleanup_drv_cmd;
5383
5384 ioc_status = drv_cmd->ioc_status & MPI3_IOCSTATUS_STATUS_MASK;
5385 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
5386 dprint_bsg_err(mrioc,
5387 "pel_get_seqnum: failed with ioc_status(0x%04x), log_info(0x%08x)\n",
5388 ioc_status, drv_cmd->ioc_loginfo);
5389 do_retry = true;
5390 }
5391
5392 if (drv_cmd->state & MPI3MR_CMD_REPLY_VALID)
5393 pel_reply = (struct mpi3_pel_reply *)drv_cmd->reply;
5394 if (!pel_reply) {
5395 dprint_bsg_err(mrioc,
5396 "pel_get_seqnum: failed due to no reply\n");
5397 goto out_failed;
5398 }
5399
5400 if (le16_to_cpu(pel_reply->pe_log_status) != MPI3_PEL_STATUS_SUCCESS) {
5401 dprint_bsg_err(mrioc,
5402 "pel_get_seqnum: failed due to pel_log_status(0x%04x)\n",
5403 le16_to_cpu(pel_reply->pe_log_status));
5404 do_retry = true;
5405 }
5406
5407 if (do_retry) {
5408 if (drv_cmd->retry_count < MPI3MR_PEL_RETRY_COUNT) {
5409 drv_cmd->retry_count++;
5410 dprint_bsg_err(mrioc,
5411 "pel_get_seqnum: retrying(%d)\n",
5412 drv_cmd->retry_count);
5413 mpi3mr_pel_get_seqnum_post(mrioc, drv_cmd);
5414 return;
5415 }
5416
5417 dprint_bsg_err(mrioc,
5418 "pel_get_seqnum: failed after all retries(%d)\n",
5419 drv_cmd->retry_count);
5420 goto out_failed;
5421 }
5422 mrioc->pel_newest_seqnum = le32_to_cpu(pel_seqnum_virt->newest) + 1;
5423 drv_cmd->retry_count = 0;
5424 mpi3mr_pel_wait_post(mrioc, drv_cmd);
5425
5426 return;
5427 out_failed:
5428 mrioc->pel_enabled = false;
5429 cleanup_drv_cmd:
5430 drv_cmd->state = MPI3MR_CMD_NOTUSED;
5431 drv_cmd->callback = NULL;
5432 drv_cmd->retry_count = 0;
5433 }
5434
5435 /**
5436 * mpi3mr_check_op_admin_proc -
5437 * @mrioc: Adapter instance reference
5438 *
5439 * Check if any of the operation reply queues
5440 * or the admin reply queue are currently in use.
5441 * If any queue is in use, this function waits for
5442 * a maximum of 10 seconds for them to become available.
5443 *
5444 * Return: 0 on success, non-zero on failure.
5445 */
mpi3mr_check_op_admin_proc(struct mpi3mr_ioc * mrioc)5446 static int mpi3mr_check_op_admin_proc(struct mpi3mr_ioc *mrioc)
5447 {
5448
5449 u16 timeout = 10 * 10;
5450 u16 elapsed_time = 0;
5451 bool op_admin_in_use = false;
5452
5453 do {
5454 op_admin_in_use = false;
5455
5456 /* Check admin_reply queue first to exit early */
5457 if (atomic_read(&mrioc->admin_reply_q_in_use) == 1)
5458 op_admin_in_use = true;
5459 else {
5460 /* Check op_reply queues */
5461 int i;
5462
5463 for (i = 0; i < mrioc->num_queues; i++) {
5464 if (atomic_read(&mrioc->op_reply_qinfo[i].in_use) == 1) {
5465 op_admin_in_use = true;
5466 break;
5467 }
5468 }
5469 }
5470
5471 if (!op_admin_in_use)
5472 break;
5473
5474 msleep(100);
5475
5476 } while (++elapsed_time < timeout);
5477
5478 if (op_admin_in_use)
5479 return 1;
5480
5481 return 0;
5482 }
5483
5484 /**
5485 * mpi3mr_soft_reset_handler - Reset the controller
5486 * @mrioc: Adapter instance reference
5487 * @reset_reason: Reset reason code
5488 * @snapdump: Flag to generate snapdump in firmware or not
5489 *
5490 * This is an handler for recovering controller by issuing soft
5491 * reset are diag fault reset. This is a blocking function and
5492 * when one reset is executed if any other resets they will be
5493 * blocked. All BSG requests will be blocked during the reset. If
5494 * controller reset is successful then the controller will be
5495 * reinitalized, otherwise the controller will be marked as not
5496 * recoverable
5497 *
5498 * In snapdump bit is set, the controller is issued with diag
5499 * fault reset so that the firmware can create a snap dump and
5500 * post that the firmware will result in F000 fault and the
5501 * driver will issue soft reset to recover from that.
5502 *
5503 * Return: 0 on success, non-zero on failure.
5504 */
mpi3mr_soft_reset_handler(struct mpi3mr_ioc * mrioc,u16 reset_reason,u8 snapdump)5505 int mpi3mr_soft_reset_handler(struct mpi3mr_ioc *mrioc,
5506 u16 reset_reason, u8 snapdump)
5507 {
5508 int retval = 0, i;
5509 unsigned long flags;
5510 enum mpi3mr_iocstate ioc_state;
5511 u32 host_diagnostic, timeout = MPI3_SYSIF_DIAG_SAVE_TIMEOUT * 10;
5512 union mpi3mr_trigger_data trigger_data;
5513
5514 /* Block the reset handler until diag save in progress*/
5515 dprint_reset(mrioc,
5516 "soft_reset_handler: check and block on diagsave_timeout(%d)\n",
5517 mrioc->diagsave_timeout);
5518 while (mrioc->diagsave_timeout)
5519 ssleep(1);
5520 /*
5521 * Block new resets until the currently executing one is finished and
5522 * return the status of the existing reset for all blocked resets
5523 */
5524 dprint_reset(mrioc, "soft_reset_handler: acquiring reset_mutex\n");
5525 if (!mutex_trylock(&mrioc->reset_mutex)) {
5526 ioc_info(mrioc,
5527 "controller reset triggered by %s is blocked due to another reset in progress\n",
5528 mpi3mr_reset_rc_name(reset_reason));
5529 do {
5530 ssleep(1);
5531 } while (mrioc->reset_in_progress == 1);
5532 ioc_info(mrioc,
5533 "returning previous reset result(%d) for the reset triggered by %s\n",
5534 mrioc->prev_reset_result,
5535 mpi3mr_reset_rc_name(reset_reason));
5536 return mrioc->prev_reset_result;
5537 }
5538 ioc_info(mrioc, "controller reset is triggered by %s\n",
5539 mpi3mr_reset_rc_name(reset_reason));
5540
5541 mrioc->device_refresh_on = 0;
5542 scsi_block_requests(mrioc->shost);
5543 mrioc->reset_in_progress = 1;
5544 mrioc->stop_bsgs = 1;
5545 mrioc->prev_reset_result = -1;
5546 memset(&trigger_data, 0, sizeof(trigger_data));
5547
5548 if ((!snapdump) && (reset_reason != MPI3MR_RESET_FROM_FAULT_WATCH) &&
5549 (reset_reason != MPI3MR_RESET_FROM_FIRMWARE) &&
5550 (reset_reason != MPI3MR_RESET_FROM_CIACTIV_FAULT)) {
5551 mpi3mr_set_trigger_data_in_all_hdb(mrioc,
5552 MPI3MR_HDB_TRIGGER_TYPE_SOFT_RESET, NULL, 0);
5553 dprint_reset(mrioc,
5554 "soft_reset_handler: releasing host diagnostic buffers\n");
5555 mpi3mr_release_diag_bufs(mrioc, 0);
5556 for (i = 0; i < MPI3_EVENT_NOTIFY_EVENTMASK_WORDS; i++)
5557 mrioc->event_masks[i] = -1;
5558
5559 dprint_reset(mrioc, "soft_reset_handler: masking events\n");
5560 mpi3mr_issue_event_notification(mrioc);
5561 }
5562
5563 mpi3mr_wait_for_host_io(mrioc, MPI3MR_RESET_HOST_IOWAIT_TIMEOUT);
5564
5565 mpi3mr_ioc_disable_intr(mrioc);
5566 mrioc->io_admin_reset_sync = 1;
5567
5568 if (snapdump) {
5569 retval = mpi3mr_issue_reset(mrioc,
5570 MPI3_SYSIF_HOST_DIAG_RESET_ACTION_DIAG_FAULT, reset_reason);
5571 if (!retval) {
5572 trigger_data.fault = (readl(&mrioc->sysif_regs->fault) &
5573 MPI3_SYSIF_FAULT_CODE_MASK);
5574 do {
5575 host_diagnostic =
5576 readl(&mrioc->sysif_regs->host_diagnostic);
5577 if (!(host_diagnostic &
5578 MPI3_SYSIF_HOST_DIAG_SAVE_IN_PROGRESS))
5579 break;
5580 msleep(100);
5581 } while (--timeout);
5582
5583 mpi3mr_save_fault_info(mrioc);
5584 mpi3mr_fault_uevent_emit(mrioc);
5585 mrioc->fwfault_counter++;
5586 mpi3mr_set_trigger_data_in_all_hdb(mrioc,
5587 MPI3MR_HDB_TRIGGER_TYPE_FAULT, &trigger_data, 0);
5588 }
5589 }
5590
5591 retval = mpi3mr_issue_reset(mrioc,
5592 MPI3_SYSIF_HOST_DIAG_RESET_ACTION_SOFT_RESET, reset_reason);
5593 if (retval) {
5594 ioc_err(mrioc, "Failed to issue soft reset to the ioc\n");
5595 goto out;
5596 }
5597
5598 retval = mpi3mr_check_op_admin_proc(mrioc);
5599 if (retval) {
5600 ioc_err(mrioc, "Soft reset failed due to an Admin or I/O queue polling\n"
5601 "thread still processing replies even after a 10 second\n"
5602 "timeout. Marking the controller as unrecoverable!\n");
5603
5604 goto out;
5605 }
5606
5607 if (mrioc->num_io_throttle_group !=
5608 mrioc->facts.max_io_throttle_group) {
5609 ioc_err(mrioc,
5610 "max io throttle group doesn't match old(%d), new(%d)\n",
5611 mrioc->num_io_throttle_group,
5612 mrioc->facts.max_io_throttle_group);
5613 retval = -EPERM;
5614 goto out;
5615 }
5616
5617 mpi3mr_flush_delayed_cmd_lists(mrioc);
5618 mpi3mr_flush_drv_cmds(mrioc);
5619 bitmap_clear(mrioc->devrem_bitmap, 0, MPI3MR_NUM_DEVRMCMD);
5620 bitmap_clear(mrioc->removepend_bitmap, 0,
5621 mrioc->dev_handle_bitmap_bits);
5622 bitmap_clear(mrioc->evtack_cmds_bitmap, 0, MPI3MR_NUM_EVTACKCMD);
5623 mpi3mr_flush_host_io(mrioc);
5624 mpi3mr_cleanup_fwevt_list(mrioc);
5625 mpi3mr_invalidate_devhandles(mrioc);
5626 mpi3mr_free_enclosure_list(mrioc);
5627
5628 if (mrioc->prepare_for_reset) {
5629 mrioc->prepare_for_reset = 0;
5630 mrioc->prepare_for_reset_timeout_counter = 0;
5631 }
5632 mpi3mr_memset_buffers(mrioc);
5633 mpi3mr_release_diag_bufs(mrioc, 1);
5634 mrioc->fw_release_trigger_active = false;
5635 mrioc->trace_release_trigger_active = false;
5636 mrioc->snapdump_trigger_active = false;
5637 mpi3mr_set_trigger_data_in_all_hdb(mrioc,
5638 MPI3MR_HDB_TRIGGER_TYPE_SOFT_RESET, NULL, 0);
5639
5640 dprint_reset(mrioc,
5641 "soft_reset_handler: reinitializing the controller\n");
5642 retval = mpi3mr_reinit_ioc(mrioc, 0);
5643 if (retval) {
5644 pr_err(IOCNAME "reinit after soft reset failed: reason %d\n",
5645 mrioc->name, reset_reason);
5646 goto out;
5647 }
5648 ssleep(MPI3MR_RESET_TOPOLOGY_SETTLE_TIME);
5649
5650 out:
5651 if (!retval) {
5652 mrioc->diagsave_timeout = 0;
5653 mrioc->reset_in_progress = 0;
5654 scsi_unblock_requests(mrioc->shost);
5655 mrioc->pel_abort_requested = 0;
5656 if (mrioc->pel_enabled) {
5657 mrioc->pel_cmds.retry_count = 0;
5658 mpi3mr_pel_wait_post(mrioc, &mrioc->pel_cmds);
5659 }
5660
5661 mrioc->device_refresh_on = 0;
5662
5663 mrioc->ts_update_counter = 0;
5664 spin_lock_irqsave(&mrioc->watchdog_lock, flags);
5665 if (mrioc->watchdog_work_q)
5666 queue_delayed_work(mrioc->watchdog_work_q,
5667 &mrioc->watchdog_work,
5668 msecs_to_jiffies(MPI3MR_WATCHDOG_INTERVAL));
5669 spin_unlock_irqrestore(&mrioc->watchdog_lock, flags);
5670 mrioc->stop_bsgs = 0;
5671 if (mrioc->pel_enabled)
5672 atomic64_inc(&event_counter);
5673 } else {
5674 dprint_reset(mrioc,
5675 "soft_reset_handler failed, marking controller as unrecoverable\n");
5676 ioc_state = mpi3mr_get_iocstate(mrioc);
5677
5678 if (ioc_state != MRIOC_STATE_FAULT)
5679 mpi3mr_issue_reset(mrioc,
5680 MPI3_SYSIF_HOST_DIAG_RESET_ACTION_DIAG_FAULT, reset_reason);
5681 mrioc->device_refresh_on = 0;
5682 mrioc->unrecoverable = 1;
5683 mrioc->reset_in_progress = 0;
5684 scsi_unblock_requests(mrioc->shost);
5685 mrioc->stop_bsgs = 0;
5686 retval = -1;
5687 mpi3mr_flush_cmds_for_unrecovered_controller(mrioc);
5688 }
5689 mrioc->prev_reset_result = retval;
5690 mutex_unlock(&mrioc->reset_mutex);
5691 ioc_info(mrioc, "controller reset is %s\n",
5692 ((retval == 0) ? "successful" : "failed"));
5693 return retval;
5694 }
5695
5696 /**
5697 * mpi3mr_post_cfg_req - Issue config requests and wait
5698 * @mrioc: Adapter instance reference
5699 * @cfg_req: Configuration request
5700 * @timeout: Timeout in seconds
5701 * @ioc_status: Pointer to return ioc status
5702 *
5703 * A generic function for posting MPI3 configuration request to
5704 * the firmware. This blocks for the completion of request for
5705 * timeout seconds and if the request times out this function
5706 * faults the controller with proper reason code.
5707 *
5708 * On successful completion of the request this function returns
5709 * appropriate ioc status from the firmware back to the caller.
5710 *
5711 * Return: 0 on success, non-zero on failure.
5712 */
mpi3mr_post_cfg_req(struct mpi3mr_ioc * mrioc,struct mpi3_config_request * cfg_req,int timeout,u16 * ioc_status)5713 static int mpi3mr_post_cfg_req(struct mpi3mr_ioc *mrioc,
5714 struct mpi3_config_request *cfg_req, int timeout, u16 *ioc_status)
5715 {
5716 int retval = 0;
5717
5718 mutex_lock(&mrioc->cfg_cmds.mutex);
5719 if (mrioc->cfg_cmds.state & MPI3MR_CMD_PENDING) {
5720 retval = -1;
5721 ioc_err(mrioc, "sending config request failed due to command in use\n");
5722 mutex_unlock(&mrioc->cfg_cmds.mutex);
5723 goto out;
5724 }
5725 mrioc->cfg_cmds.state = MPI3MR_CMD_PENDING;
5726 mrioc->cfg_cmds.is_waiting = 1;
5727 mrioc->cfg_cmds.callback = NULL;
5728 mrioc->cfg_cmds.ioc_status = 0;
5729 mrioc->cfg_cmds.ioc_loginfo = 0;
5730
5731 cfg_req->host_tag = cpu_to_le16(MPI3MR_HOSTTAG_CFG_CMDS);
5732 cfg_req->function = MPI3_FUNCTION_CONFIG;
5733
5734 init_completion(&mrioc->cfg_cmds.done);
5735 dprint_cfg_info(mrioc, "posting config request\n");
5736 if (mrioc->logging_level & MPI3_DEBUG_CFG_INFO)
5737 dprint_dump(cfg_req, sizeof(struct mpi3_config_request),
5738 "mpi3_cfg_req");
5739 retval = mpi3mr_admin_request_post(mrioc, cfg_req, sizeof(*cfg_req), 1);
5740 if (retval) {
5741 ioc_err(mrioc, "posting config request failed\n");
5742 goto out_unlock;
5743 }
5744 wait_for_completion_timeout(&mrioc->cfg_cmds.done, (timeout * HZ));
5745 if (!(mrioc->cfg_cmds.state & MPI3MR_CMD_COMPLETE)) {
5746 mpi3mr_check_rh_fault_ioc(mrioc,
5747 MPI3MR_RESET_FROM_CFG_REQ_TIMEOUT);
5748 ioc_err(mrioc, "config request timed out\n");
5749 retval = -1;
5750 goto out_unlock;
5751 }
5752 *ioc_status = mrioc->cfg_cmds.ioc_status & MPI3_IOCSTATUS_STATUS_MASK;
5753 if ((*ioc_status) != MPI3_IOCSTATUS_SUCCESS)
5754 dprint_cfg_err(mrioc,
5755 "cfg_page request returned with ioc_status(0x%04x), log_info(0x%08x)\n",
5756 *ioc_status, mrioc->cfg_cmds.ioc_loginfo);
5757
5758 out_unlock:
5759 mrioc->cfg_cmds.state = MPI3MR_CMD_NOTUSED;
5760 mutex_unlock(&mrioc->cfg_cmds.mutex);
5761
5762 out:
5763 return retval;
5764 }
5765
5766 /**
5767 * mpi3mr_process_cfg_req - config page request processor
5768 * @mrioc: Adapter instance reference
5769 * @cfg_req: Configuration request
5770 * @cfg_hdr: Configuration page header
5771 * @timeout: Timeout in seconds
5772 * @ioc_status: Pointer to return ioc status
5773 * @cfg_buf: Memory pointer to copy config page or header
5774 * @cfg_buf_sz: Size of the memory to get config page or header
5775 *
5776 * This is handler for config page read, write and config page
5777 * header read operations.
5778 *
5779 * This function expects the cfg_req to be populated with page
5780 * type, page number, action for the header read and with page
5781 * address for all other operations.
5782 *
5783 * The cfg_hdr can be passed as null for reading required header
5784 * details for read/write pages the cfg_hdr should point valid
5785 * configuration page header.
5786 *
5787 * This allocates dmaable memory based on the size of the config
5788 * buffer and set the SGE of the cfg_req.
5789 *
5790 * For write actions, the config page data has to be passed in
5791 * the cfg_buf and size of the data has to be mentioned in the
5792 * cfg_buf_sz.
5793 *
5794 * For read/header actions, on successful completion of the
5795 * request with successful ioc_status the data will be copied
5796 * into the cfg_buf limited to a minimum of actual page size and
5797 * cfg_buf_sz
5798 *
5799 *
5800 * Return: 0 on success, non-zero on failure.
5801 */
mpi3mr_process_cfg_req(struct mpi3mr_ioc * mrioc,struct mpi3_config_request * cfg_req,struct mpi3_config_page_header * cfg_hdr,int timeout,u16 * ioc_status,void * cfg_buf,u32 cfg_buf_sz)5802 static int mpi3mr_process_cfg_req(struct mpi3mr_ioc *mrioc,
5803 struct mpi3_config_request *cfg_req,
5804 struct mpi3_config_page_header *cfg_hdr, int timeout, u16 *ioc_status,
5805 void *cfg_buf, u32 cfg_buf_sz)
5806 {
5807 struct dma_memory_desc mem_desc;
5808 int retval = -1;
5809 u8 invalid_action = 0;
5810 u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
5811
5812 memset(&mem_desc, 0, sizeof(struct dma_memory_desc));
5813
5814 if (cfg_req->action == MPI3_CONFIG_ACTION_PAGE_HEADER)
5815 mem_desc.size = sizeof(struct mpi3_config_page_header);
5816 else {
5817 if (!cfg_hdr) {
5818 ioc_err(mrioc, "null config header passed for config action(%d), page_type(0x%02x), page_num(%d)\n",
5819 cfg_req->action, cfg_req->page_type,
5820 cfg_req->page_number);
5821 goto out;
5822 }
5823 switch (cfg_hdr->page_attribute & MPI3_CONFIG_PAGEATTR_MASK) {
5824 case MPI3_CONFIG_PAGEATTR_READ_ONLY:
5825 if (cfg_req->action
5826 != MPI3_CONFIG_ACTION_READ_CURRENT)
5827 invalid_action = 1;
5828 break;
5829 case MPI3_CONFIG_PAGEATTR_CHANGEABLE:
5830 if ((cfg_req->action ==
5831 MPI3_CONFIG_ACTION_READ_PERSISTENT) ||
5832 (cfg_req->action ==
5833 MPI3_CONFIG_ACTION_WRITE_PERSISTENT))
5834 invalid_action = 1;
5835 break;
5836 case MPI3_CONFIG_PAGEATTR_PERSISTENT:
5837 default:
5838 break;
5839 }
5840 if (invalid_action) {
5841 ioc_err(mrioc,
5842 "config action(%d) is not allowed for page_type(0x%02x), page_num(%d) with page_attribute(0x%02x)\n",
5843 cfg_req->action, cfg_req->page_type,
5844 cfg_req->page_number, cfg_hdr->page_attribute);
5845 goto out;
5846 }
5847 mem_desc.size = le16_to_cpu(cfg_hdr->page_length) * 4;
5848 cfg_req->page_length = cfg_hdr->page_length;
5849 cfg_req->page_version = cfg_hdr->page_version;
5850 }
5851
5852 mem_desc.addr = dma_alloc_coherent(&mrioc->pdev->dev,
5853 mem_desc.size, &mem_desc.dma_addr, GFP_KERNEL);
5854
5855 if (!mem_desc.addr)
5856 return retval;
5857
5858 mpi3mr_add_sg_single(&cfg_req->sgl, sgl_flags, mem_desc.size,
5859 mem_desc.dma_addr);
5860
5861 if ((cfg_req->action == MPI3_CONFIG_ACTION_WRITE_PERSISTENT) ||
5862 (cfg_req->action == MPI3_CONFIG_ACTION_WRITE_CURRENT)) {
5863 memcpy(mem_desc.addr, cfg_buf, min_t(u16, mem_desc.size,
5864 cfg_buf_sz));
5865 dprint_cfg_info(mrioc, "config buffer to be written\n");
5866 if (mrioc->logging_level & MPI3_DEBUG_CFG_INFO)
5867 dprint_dump(mem_desc.addr, mem_desc.size, "cfg_buf");
5868 }
5869
5870 if (mpi3mr_post_cfg_req(mrioc, cfg_req, timeout, ioc_status))
5871 goto out;
5872
5873 retval = 0;
5874 if ((*ioc_status == MPI3_IOCSTATUS_SUCCESS) &&
5875 (cfg_req->action != MPI3_CONFIG_ACTION_WRITE_PERSISTENT) &&
5876 (cfg_req->action != MPI3_CONFIG_ACTION_WRITE_CURRENT)) {
5877 memcpy(cfg_buf, mem_desc.addr, min_t(u16, mem_desc.size,
5878 cfg_buf_sz));
5879 dprint_cfg_info(mrioc, "config buffer read\n");
5880 if (mrioc->logging_level & MPI3_DEBUG_CFG_INFO)
5881 dprint_dump(mem_desc.addr, mem_desc.size, "cfg_buf");
5882 }
5883
5884 out:
5885 if (mem_desc.addr) {
5886 dma_free_coherent(&mrioc->pdev->dev, mem_desc.size,
5887 mem_desc.addr, mem_desc.dma_addr);
5888 mem_desc.addr = NULL;
5889 }
5890
5891 return retval;
5892 }
5893
5894 /**
5895 * mpi3mr_cfg_get_dev_pg0 - Read current device page0
5896 * @mrioc: Adapter instance reference
5897 * @ioc_status: Pointer to return ioc status
5898 * @dev_pg0: Pointer to return device page 0
5899 * @pg_sz: Size of the memory allocated to the page pointer
5900 * @form: The form to be used for addressing the page
5901 * @form_spec: Form specific information like device handle
5902 *
5903 * This is handler for config page read for a specific device
5904 * page0. The ioc_status has the controller returned ioc_status.
5905 * This routine doesn't check ioc_status to decide whether the
5906 * page read is success or not and it is the callers
5907 * responsibility.
5908 *
5909 * Return: 0 on success, non-zero on failure.
5910 */
mpi3mr_cfg_get_dev_pg0(struct mpi3mr_ioc * mrioc,u16 * ioc_status,struct mpi3_device_page0 * dev_pg0,u16 pg_sz,u32 form,u32 form_spec)5911 int mpi3mr_cfg_get_dev_pg0(struct mpi3mr_ioc *mrioc, u16 *ioc_status,
5912 struct mpi3_device_page0 *dev_pg0, u16 pg_sz, u32 form, u32 form_spec)
5913 {
5914 struct mpi3_config_page_header cfg_hdr;
5915 struct mpi3_config_request cfg_req;
5916 u32 page_address;
5917
5918 memset(dev_pg0, 0, pg_sz);
5919 memset(&cfg_hdr, 0, sizeof(cfg_hdr));
5920 memset(&cfg_req, 0, sizeof(cfg_req));
5921
5922 cfg_req.function = MPI3_FUNCTION_CONFIG;
5923 cfg_req.action = MPI3_CONFIG_ACTION_PAGE_HEADER;
5924 cfg_req.page_type = MPI3_CONFIG_PAGETYPE_DEVICE;
5925 cfg_req.page_number = 0;
5926 cfg_req.page_address = 0;
5927
5928 if (mpi3mr_process_cfg_req(mrioc, &cfg_req, NULL,
5929 MPI3MR_INTADMCMD_TIMEOUT, ioc_status, &cfg_hdr, sizeof(cfg_hdr))) {
5930 ioc_err(mrioc, "device page0 header read failed\n");
5931 goto out_failed;
5932 }
5933 if (*ioc_status != MPI3_IOCSTATUS_SUCCESS) {
5934 ioc_err(mrioc, "device page0 header read failed with ioc_status(0x%04x)\n",
5935 *ioc_status);
5936 goto out_failed;
5937 }
5938 cfg_req.action = MPI3_CONFIG_ACTION_READ_CURRENT;
5939 page_address = ((form & MPI3_DEVICE_PGAD_FORM_MASK) |
5940 (form_spec & MPI3_DEVICE_PGAD_HANDLE_MASK));
5941 cfg_req.page_address = cpu_to_le32(page_address);
5942 if (mpi3mr_process_cfg_req(mrioc, &cfg_req, &cfg_hdr,
5943 MPI3MR_INTADMCMD_TIMEOUT, ioc_status, dev_pg0, pg_sz)) {
5944 ioc_err(mrioc, "device page0 read failed\n");
5945 goto out_failed;
5946 }
5947 return 0;
5948 out_failed:
5949 return -1;
5950 }
5951
5952
5953 /**
5954 * mpi3mr_cfg_get_sas_phy_pg0 - Read current SAS Phy page0
5955 * @mrioc: Adapter instance reference
5956 * @ioc_status: Pointer to return ioc status
5957 * @phy_pg0: Pointer to return SAS Phy page 0
5958 * @pg_sz: Size of the memory allocated to the page pointer
5959 * @form: The form to be used for addressing the page
5960 * @form_spec: Form specific information like phy number
5961 *
5962 * This is handler for config page read for a specific SAS Phy
5963 * page0. The ioc_status has the controller returned ioc_status.
5964 * This routine doesn't check ioc_status to decide whether the
5965 * page read is success or not and it is the callers
5966 * responsibility.
5967 *
5968 * Return: 0 on success, non-zero on failure.
5969 */
mpi3mr_cfg_get_sas_phy_pg0(struct mpi3mr_ioc * mrioc,u16 * ioc_status,struct mpi3_sas_phy_page0 * phy_pg0,u16 pg_sz,u32 form,u32 form_spec)5970 int mpi3mr_cfg_get_sas_phy_pg0(struct mpi3mr_ioc *mrioc, u16 *ioc_status,
5971 struct mpi3_sas_phy_page0 *phy_pg0, u16 pg_sz, u32 form,
5972 u32 form_spec)
5973 {
5974 struct mpi3_config_page_header cfg_hdr;
5975 struct mpi3_config_request cfg_req;
5976 u32 page_address;
5977
5978 memset(phy_pg0, 0, pg_sz);
5979 memset(&cfg_hdr, 0, sizeof(cfg_hdr));
5980 memset(&cfg_req, 0, sizeof(cfg_req));
5981
5982 cfg_req.function = MPI3_FUNCTION_CONFIG;
5983 cfg_req.action = MPI3_CONFIG_ACTION_PAGE_HEADER;
5984 cfg_req.page_type = MPI3_CONFIG_PAGETYPE_SAS_PHY;
5985 cfg_req.page_number = 0;
5986 cfg_req.page_address = 0;
5987
5988 if (mpi3mr_process_cfg_req(mrioc, &cfg_req, NULL,
5989 MPI3MR_INTADMCMD_TIMEOUT, ioc_status, &cfg_hdr, sizeof(cfg_hdr))) {
5990 ioc_err(mrioc, "sas phy page0 header read failed\n");
5991 goto out_failed;
5992 }
5993 if (*ioc_status != MPI3_IOCSTATUS_SUCCESS) {
5994 ioc_err(mrioc, "sas phy page0 header read failed with ioc_status(0x%04x)\n",
5995 *ioc_status);
5996 goto out_failed;
5997 }
5998 cfg_req.action = MPI3_CONFIG_ACTION_READ_CURRENT;
5999 page_address = ((form & MPI3_SAS_PHY_PGAD_FORM_MASK) |
6000 (form_spec & MPI3_SAS_PHY_PGAD_PHY_NUMBER_MASK));
6001 cfg_req.page_address = cpu_to_le32(page_address);
6002 if (mpi3mr_process_cfg_req(mrioc, &cfg_req, &cfg_hdr,
6003 MPI3MR_INTADMCMD_TIMEOUT, ioc_status, phy_pg0, pg_sz)) {
6004 ioc_err(mrioc, "sas phy page0 read failed\n");
6005 goto out_failed;
6006 }
6007 return 0;
6008 out_failed:
6009 return -1;
6010 }
6011
6012 /**
6013 * mpi3mr_cfg_get_sas_phy_pg1 - Read current SAS Phy page1
6014 * @mrioc: Adapter instance reference
6015 * @ioc_status: Pointer to return ioc status
6016 * @phy_pg1: Pointer to return SAS Phy page 1
6017 * @pg_sz: Size of the memory allocated to the page pointer
6018 * @form: The form to be used for addressing the page
6019 * @form_spec: Form specific information like phy number
6020 *
6021 * This is handler for config page read for a specific SAS Phy
6022 * page1. The ioc_status has the controller returned ioc_status.
6023 * This routine doesn't check ioc_status to decide whether the
6024 * page read is success or not and it is the callers
6025 * responsibility.
6026 *
6027 * Return: 0 on success, non-zero on failure.
6028 */
mpi3mr_cfg_get_sas_phy_pg1(struct mpi3mr_ioc * mrioc,u16 * ioc_status,struct mpi3_sas_phy_page1 * phy_pg1,u16 pg_sz,u32 form,u32 form_spec)6029 int mpi3mr_cfg_get_sas_phy_pg1(struct mpi3mr_ioc *mrioc, u16 *ioc_status,
6030 struct mpi3_sas_phy_page1 *phy_pg1, u16 pg_sz, u32 form,
6031 u32 form_spec)
6032 {
6033 struct mpi3_config_page_header cfg_hdr;
6034 struct mpi3_config_request cfg_req;
6035 u32 page_address;
6036
6037 memset(phy_pg1, 0, pg_sz);
6038 memset(&cfg_hdr, 0, sizeof(cfg_hdr));
6039 memset(&cfg_req, 0, sizeof(cfg_req));
6040
6041 cfg_req.function = MPI3_FUNCTION_CONFIG;
6042 cfg_req.action = MPI3_CONFIG_ACTION_PAGE_HEADER;
6043 cfg_req.page_type = MPI3_CONFIG_PAGETYPE_SAS_PHY;
6044 cfg_req.page_number = 1;
6045 cfg_req.page_address = 0;
6046
6047 if (mpi3mr_process_cfg_req(mrioc, &cfg_req, NULL,
6048 MPI3MR_INTADMCMD_TIMEOUT, ioc_status, &cfg_hdr, sizeof(cfg_hdr))) {
6049 ioc_err(mrioc, "sas phy page1 header read failed\n");
6050 goto out_failed;
6051 }
6052 if (*ioc_status != MPI3_IOCSTATUS_SUCCESS) {
6053 ioc_err(mrioc, "sas phy page1 header read failed with ioc_status(0x%04x)\n",
6054 *ioc_status);
6055 goto out_failed;
6056 }
6057 cfg_req.action = MPI3_CONFIG_ACTION_READ_CURRENT;
6058 page_address = ((form & MPI3_SAS_PHY_PGAD_FORM_MASK) |
6059 (form_spec & MPI3_SAS_PHY_PGAD_PHY_NUMBER_MASK));
6060 cfg_req.page_address = cpu_to_le32(page_address);
6061 if (mpi3mr_process_cfg_req(mrioc, &cfg_req, &cfg_hdr,
6062 MPI3MR_INTADMCMD_TIMEOUT, ioc_status, phy_pg1, pg_sz)) {
6063 ioc_err(mrioc, "sas phy page1 read failed\n");
6064 goto out_failed;
6065 }
6066 return 0;
6067 out_failed:
6068 return -1;
6069 }
6070
6071
6072 /**
6073 * mpi3mr_cfg_get_sas_exp_pg0 - Read current SAS Expander page0
6074 * @mrioc: Adapter instance reference
6075 * @ioc_status: Pointer to return ioc status
6076 * @exp_pg0: Pointer to return SAS Expander page 0
6077 * @pg_sz: Size of the memory allocated to the page pointer
6078 * @form: The form to be used for addressing the page
6079 * @form_spec: Form specific information like device handle
6080 *
6081 * This is handler for config page read for a specific SAS
6082 * Expander page0. The ioc_status has the controller returned
6083 * ioc_status. This routine doesn't check ioc_status to decide
6084 * whether the page read is success or not and it is the callers
6085 * responsibility.
6086 *
6087 * Return: 0 on success, non-zero on failure.
6088 */
mpi3mr_cfg_get_sas_exp_pg0(struct mpi3mr_ioc * mrioc,u16 * ioc_status,struct mpi3_sas_expander_page0 * exp_pg0,u16 pg_sz,u32 form,u32 form_spec)6089 int mpi3mr_cfg_get_sas_exp_pg0(struct mpi3mr_ioc *mrioc, u16 *ioc_status,
6090 struct mpi3_sas_expander_page0 *exp_pg0, u16 pg_sz, u32 form,
6091 u32 form_spec)
6092 {
6093 struct mpi3_config_page_header cfg_hdr;
6094 struct mpi3_config_request cfg_req;
6095 u32 page_address;
6096
6097 memset(exp_pg0, 0, pg_sz);
6098 memset(&cfg_hdr, 0, sizeof(cfg_hdr));
6099 memset(&cfg_req, 0, sizeof(cfg_req));
6100
6101 cfg_req.function = MPI3_FUNCTION_CONFIG;
6102 cfg_req.action = MPI3_CONFIG_ACTION_PAGE_HEADER;
6103 cfg_req.page_type = MPI3_CONFIG_PAGETYPE_SAS_EXPANDER;
6104 cfg_req.page_number = 0;
6105 cfg_req.page_address = 0;
6106
6107 if (mpi3mr_process_cfg_req(mrioc, &cfg_req, NULL,
6108 MPI3MR_INTADMCMD_TIMEOUT, ioc_status, &cfg_hdr, sizeof(cfg_hdr))) {
6109 ioc_err(mrioc, "expander page0 header read failed\n");
6110 goto out_failed;
6111 }
6112 if (*ioc_status != MPI3_IOCSTATUS_SUCCESS) {
6113 ioc_err(mrioc, "expander page0 header read failed with ioc_status(0x%04x)\n",
6114 *ioc_status);
6115 goto out_failed;
6116 }
6117 cfg_req.action = MPI3_CONFIG_ACTION_READ_CURRENT;
6118 page_address = ((form & MPI3_SAS_EXPAND_PGAD_FORM_MASK) |
6119 (form_spec & (MPI3_SAS_EXPAND_PGAD_PHYNUM_MASK |
6120 MPI3_SAS_EXPAND_PGAD_HANDLE_MASK)));
6121 cfg_req.page_address = cpu_to_le32(page_address);
6122 if (mpi3mr_process_cfg_req(mrioc, &cfg_req, &cfg_hdr,
6123 MPI3MR_INTADMCMD_TIMEOUT, ioc_status, exp_pg0, pg_sz)) {
6124 ioc_err(mrioc, "expander page0 read failed\n");
6125 goto out_failed;
6126 }
6127 return 0;
6128 out_failed:
6129 return -1;
6130 }
6131
6132 /**
6133 * mpi3mr_cfg_get_sas_exp_pg1 - Read current SAS Expander page1
6134 * @mrioc: Adapter instance reference
6135 * @ioc_status: Pointer to return ioc status
6136 * @exp_pg1: Pointer to return SAS Expander page 1
6137 * @pg_sz: Size of the memory allocated to the page pointer
6138 * @form: The form to be used for addressing the page
6139 * @form_spec: Form specific information like phy number
6140 *
6141 * This is handler for config page read for a specific SAS
6142 * Expander page1. The ioc_status has the controller returned
6143 * ioc_status. This routine doesn't check ioc_status to decide
6144 * whether the page read is success or not and it is the callers
6145 * responsibility.
6146 *
6147 * Return: 0 on success, non-zero on failure.
6148 */
mpi3mr_cfg_get_sas_exp_pg1(struct mpi3mr_ioc * mrioc,u16 * ioc_status,struct mpi3_sas_expander_page1 * exp_pg1,u16 pg_sz,u32 form,u32 form_spec)6149 int mpi3mr_cfg_get_sas_exp_pg1(struct mpi3mr_ioc *mrioc, u16 *ioc_status,
6150 struct mpi3_sas_expander_page1 *exp_pg1, u16 pg_sz, u32 form,
6151 u32 form_spec)
6152 {
6153 struct mpi3_config_page_header cfg_hdr;
6154 struct mpi3_config_request cfg_req;
6155 u32 page_address;
6156
6157 memset(exp_pg1, 0, pg_sz);
6158 memset(&cfg_hdr, 0, sizeof(cfg_hdr));
6159 memset(&cfg_req, 0, sizeof(cfg_req));
6160
6161 cfg_req.function = MPI3_FUNCTION_CONFIG;
6162 cfg_req.action = MPI3_CONFIG_ACTION_PAGE_HEADER;
6163 cfg_req.page_type = MPI3_CONFIG_PAGETYPE_SAS_EXPANDER;
6164 cfg_req.page_number = 1;
6165 cfg_req.page_address = 0;
6166
6167 if (mpi3mr_process_cfg_req(mrioc, &cfg_req, NULL,
6168 MPI3MR_INTADMCMD_TIMEOUT, ioc_status, &cfg_hdr, sizeof(cfg_hdr))) {
6169 ioc_err(mrioc, "expander page1 header read failed\n");
6170 goto out_failed;
6171 }
6172 if (*ioc_status != MPI3_IOCSTATUS_SUCCESS) {
6173 ioc_err(mrioc, "expander page1 header read failed with ioc_status(0x%04x)\n",
6174 *ioc_status);
6175 goto out_failed;
6176 }
6177 cfg_req.action = MPI3_CONFIG_ACTION_READ_CURRENT;
6178 page_address = ((form & MPI3_SAS_EXPAND_PGAD_FORM_MASK) |
6179 (form_spec & (MPI3_SAS_EXPAND_PGAD_PHYNUM_MASK |
6180 MPI3_SAS_EXPAND_PGAD_HANDLE_MASK)));
6181 cfg_req.page_address = cpu_to_le32(page_address);
6182 if (mpi3mr_process_cfg_req(mrioc, &cfg_req, &cfg_hdr,
6183 MPI3MR_INTADMCMD_TIMEOUT, ioc_status, exp_pg1, pg_sz)) {
6184 ioc_err(mrioc, "expander page1 read failed\n");
6185 goto out_failed;
6186 }
6187 return 0;
6188 out_failed:
6189 return -1;
6190 }
6191
6192 /**
6193 * mpi3mr_cfg_get_enclosure_pg0 - Read current Enclosure page0
6194 * @mrioc: Adapter instance reference
6195 * @ioc_status: Pointer to return ioc status
6196 * @encl_pg0: Pointer to return Enclosure page 0
6197 * @pg_sz: Size of the memory allocated to the page pointer
6198 * @form: The form to be used for addressing the page
6199 * @form_spec: Form specific information like device handle
6200 *
6201 * This is handler for config page read for a specific Enclosure
6202 * page0. The ioc_status has the controller returned ioc_status.
6203 * This routine doesn't check ioc_status to decide whether the
6204 * page read is success or not and it is the callers
6205 * responsibility.
6206 *
6207 * Return: 0 on success, non-zero on failure.
6208 */
mpi3mr_cfg_get_enclosure_pg0(struct mpi3mr_ioc * mrioc,u16 * ioc_status,struct mpi3_enclosure_page0 * encl_pg0,u16 pg_sz,u32 form,u32 form_spec)6209 int mpi3mr_cfg_get_enclosure_pg0(struct mpi3mr_ioc *mrioc, u16 *ioc_status,
6210 struct mpi3_enclosure_page0 *encl_pg0, u16 pg_sz, u32 form,
6211 u32 form_spec)
6212 {
6213 struct mpi3_config_page_header cfg_hdr;
6214 struct mpi3_config_request cfg_req;
6215 u32 page_address;
6216
6217 memset(encl_pg0, 0, pg_sz);
6218 memset(&cfg_hdr, 0, sizeof(cfg_hdr));
6219 memset(&cfg_req, 0, sizeof(cfg_req));
6220
6221 cfg_req.function = MPI3_FUNCTION_CONFIG;
6222 cfg_req.action = MPI3_CONFIG_ACTION_PAGE_HEADER;
6223 cfg_req.page_type = MPI3_CONFIG_PAGETYPE_ENCLOSURE;
6224 cfg_req.page_number = 0;
6225 cfg_req.page_address = 0;
6226
6227 if (mpi3mr_process_cfg_req(mrioc, &cfg_req, NULL,
6228 MPI3MR_INTADMCMD_TIMEOUT, ioc_status, &cfg_hdr, sizeof(cfg_hdr))) {
6229 ioc_err(mrioc, "enclosure page0 header read failed\n");
6230 goto out_failed;
6231 }
6232 if (*ioc_status != MPI3_IOCSTATUS_SUCCESS) {
6233 ioc_err(mrioc, "enclosure page0 header read failed with ioc_status(0x%04x)\n",
6234 *ioc_status);
6235 goto out_failed;
6236 }
6237 cfg_req.action = MPI3_CONFIG_ACTION_READ_CURRENT;
6238 page_address = ((form & MPI3_ENCLOS_PGAD_FORM_MASK) |
6239 (form_spec & MPI3_ENCLOS_PGAD_HANDLE_MASK));
6240 cfg_req.page_address = cpu_to_le32(page_address);
6241 if (mpi3mr_process_cfg_req(mrioc, &cfg_req, &cfg_hdr,
6242 MPI3MR_INTADMCMD_TIMEOUT, ioc_status, encl_pg0, pg_sz)) {
6243 ioc_err(mrioc, "enclosure page0 read failed\n");
6244 goto out_failed;
6245 }
6246 return 0;
6247 out_failed:
6248 return -1;
6249 }
6250
6251
6252 /**
6253 * mpi3mr_cfg_get_sas_io_unit_pg0 - Read current SASIOUnit page0
6254 * @mrioc: Adapter instance reference
6255 * @sas_io_unit_pg0: Pointer to return SAS IO Unit page 0
6256 * @pg_sz: Size of the memory allocated to the page pointer
6257 *
6258 * This is handler for config page read for the SAS IO Unit
6259 * page0. This routine checks ioc_status to decide whether the
6260 * page read is success or not.
6261 *
6262 * Return: 0 on success, non-zero on failure.
6263 */
mpi3mr_cfg_get_sas_io_unit_pg0(struct mpi3mr_ioc * mrioc,struct mpi3_sas_io_unit_page0 * sas_io_unit_pg0,u16 pg_sz)6264 int mpi3mr_cfg_get_sas_io_unit_pg0(struct mpi3mr_ioc *mrioc,
6265 struct mpi3_sas_io_unit_page0 *sas_io_unit_pg0, u16 pg_sz)
6266 {
6267 struct mpi3_config_page_header cfg_hdr;
6268 struct mpi3_config_request cfg_req;
6269 u16 ioc_status = 0;
6270
6271 memset(sas_io_unit_pg0, 0, pg_sz);
6272 memset(&cfg_hdr, 0, sizeof(cfg_hdr));
6273 memset(&cfg_req, 0, sizeof(cfg_req));
6274
6275 cfg_req.function = MPI3_FUNCTION_CONFIG;
6276 cfg_req.action = MPI3_CONFIG_ACTION_PAGE_HEADER;
6277 cfg_req.page_type = MPI3_CONFIG_PAGETYPE_SAS_IO_UNIT;
6278 cfg_req.page_number = 0;
6279 cfg_req.page_address = 0;
6280
6281 if (mpi3mr_process_cfg_req(mrioc, &cfg_req, NULL,
6282 MPI3MR_INTADMCMD_TIMEOUT, &ioc_status, &cfg_hdr, sizeof(cfg_hdr))) {
6283 ioc_err(mrioc, "sas io unit page0 header read failed\n");
6284 goto out_failed;
6285 }
6286 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
6287 ioc_err(mrioc, "sas io unit page0 header read failed with ioc_status(0x%04x)\n",
6288 ioc_status);
6289 goto out_failed;
6290 }
6291 cfg_req.action = MPI3_CONFIG_ACTION_READ_CURRENT;
6292
6293 if (mpi3mr_process_cfg_req(mrioc, &cfg_req, &cfg_hdr,
6294 MPI3MR_INTADMCMD_TIMEOUT, &ioc_status, sas_io_unit_pg0, pg_sz)) {
6295 ioc_err(mrioc, "sas io unit page0 read failed\n");
6296 goto out_failed;
6297 }
6298 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
6299 ioc_err(mrioc, "sas io unit page0 read failed with ioc_status(0x%04x)\n",
6300 ioc_status);
6301 goto out_failed;
6302 }
6303 return 0;
6304 out_failed:
6305 return -1;
6306 }
6307
6308 /**
6309 * mpi3mr_cfg_get_sas_io_unit_pg1 - Read current SASIOUnit page1
6310 * @mrioc: Adapter instance reference
6311 * @sas_io_unit_pg1: Pointer to return SAS IO Unit page 1
6312 * @pg_sz: Size of the memory allocated to the page pointer
6313 *
6314 * This is handler for config page read for the SAS IO Unit
6315 * page1. This routine checks ioc_status to decide whether the
6316 * page read is success or not.
6317 *
6318 * Return: 0 on success, non-zero on failure.
6319 */
mpi3mr_cfg_get_sas_io_unit_pg1(struct mpi3mr_ioc * mrioc,struct mpi3_sas_io_unit_page1 * sas_io_unit_pg1,u16 pg_sz)6320 int mpi3mr_cfg_get_sas_io_unit_pg1(struct mpi3mr_ioc *mrioc,
6321 struct mpi3_sas_io_unit_page1 *sas_io_unit_pg1, u16 pg_sz)
6322 {
6323 struct mpi3_config_page_header cfg_hdr;
6324 struct mpi3_config_request cfg_req;
6325 u16 ioc_status = 0;
6326
6327 memset(sas_io_unit_pg1, 0, pg_sz);
6328 memset(&cfg_hdr, 0, sizeof(cfg_hdr));
6329 memset(&cfg_req, 0, sizeof(cfg_req));
6330
6331 cfg_req.function = MPI3_FUNCTION_CONFIG;
6332 cfg_req.action = MPI3_CONFIG_ACTION_PAGE_HEADER;
6333 cfg_req.page_type = MPI3_CONFIG_PAGETYPE_SAS_IO_UNIT;
6334 cfg_req.page_number = 1;
6335 cfg_req.page_address = 0;
6336
6337 if (mpi3mr_process_cfg_req(mrioc, &cfg_req, NULL,
6338 MPI3MR_INTADMCMD_TIMEOUT, &ioc_status, &cfg_hdr, sizeof(cfg_hdr))) {
6339 ioc_err(mrioc, "sas io unit page1 header read failed\n");
6340 goto out_failed;
6341 }
6342 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
6343 ioc_err(mrioc, "sas io unit page1 header read failed with ioc_status(0x%04x)\n",
6344 ioc_status);
6345 goto out_failed;
6346 }
6347 cfg_req.action = MPI3_CONFIG_ACTION_READ_CURRENT;
6348
6349 if (mpi3mr_process_cfg_req(mrioc, &cfg_req, &cfg_hdr,
6350 MPI3MR_INTADMCMD_TIMEOUT, &ioc_status, sas_io_unit_pg1, pg_sz)) {
6351 ioc_err(mrioc, "sas io unit page1 read failed\n");
6352 goto out_failed;
6353 }
6354 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
6355 ioc_err(mrioc, "sas io unit page1 read failed with ioc_status(0x%04x)\n",
6356 ioc_status);
6357 goto out_failed;
6358 }
6359 return 0;
6360 out_failed:
6361 return -1;
6362 }
6363
6364 /**
6365 * mpi3mr_cfg_set_sas_io_unit_pg1 - Write SASIOUnit page1
6366 * @mrioc: Adapter instance reference
6367 * @sas_io_unit_pg1: Pointer to the SAS IO Unit page 1 to write
6368 * @pg_sz: Size of the memory allocated to the page pointer
6369 *
6370 * This is handler for config page write for the SAS IO Unit
6371 * page1. This routine checks ioc_status to decide whether the
6372 * page read is success or not. This will modify both current
6373 * and persistent page.
6374 *
6375 * Return: 0 on success, non-zero on failure.
6376 */
mpi3mr_cfg_set_sas_io_unit_pg1(struct mpi3mr_ioc * mrioc,struct mpi3_sas_io_unit_page1 * sas_io_unit_pg1,u16 pg_sz)6377 int mpi3mr_cfg_set_sas_io_unit_pg1(struct mpi3mr_ioc *mrioc,
6378 struct mpi3_sas_io_unit_page1 *sas_io_unit_pg1, u16 pg_sz)
6379 {
6380 struct mpi3_config_page_header cfg_hdr;
6381 struct mpi3_config_request cfg_req;
6382 u16 ioc_status = 0;
6383
6384 memset(&cfg_hdr, 0, sizeof(cfg_hdr));
6385 memset(&cfg_req, 0, sizeof(cfg_req));
6386
6387 cfg_req.function = MPI3_FUNCTION_CONFIG;
6388 cfg_req.action = MPI3_CONFIG_ACTION_PAGE_HEADER;
6389 cfg_req.page_type = MPI3_CONFIG_PAGETYPE_SAS_IO_UNIT;
6390 cfg_req.page_number = 1;
6391 cfg_req.page_address = 0;
6392
6393 if (mpi3mr_process_cfg_req(mrioc, &cfg_req, NULL,
6394 MPI3MR_INTADMCMD_TIMEOUT, &ioc_status, &cfg_hdr, sizeof(cfg_hdr))) {
6395 ioc_err(mrioc, "sas io unit page1 header read failed\n");
6396 goto out_failed;
6397 }
6398 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
6399 ioc_err(mrioc, "sas io unit page1 header read failed with ioc_status(0x%04x)\n",
6400 ioc_status);
6401 goto out_failed;
6402 }
6403 cfg_req.action = MPI3_CONFIG_ACTION_WRITE_CURRENT;
6404
6405 if (mpi3mr_process_cfg_req(mrioc, &cfg_req, &cfg_hdr,
6406 MPI3MR_INTADMCMD_TIMEOUT, &ioc_status, sas_io_unit_pg1, pg_sz)) {
6407 ioc_err(mrioc, "sas io unit page1 write current failed\n");
6408 goto out_failed;
6409 }
6410 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
6411 ioc_err(mrioc, "sas io unit page1 write current failed with ioc_status(0x%04x)\n",
6412 ioc_status);
6413 goto out_failed;
6414 }
6415
6416 cfg_req.action = MPI3_CONFIG_ACTION_WRITE_PERSISTENT;
6417
6418 if (mpi3mr_process_cfg_req(mrioc, &cfg_req, &cfg_hdr,
6419 MPI3MR_INTADMCMD_TIMEOUT, &ioc_status, sas_io_unit_pg1, pg_sz)) {
6420 ioc_err(mrioc, "sas io unit page1 write persistent failed\n");
6421 goto out_failed;
6422 }
6423 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
6424 ioc_err(mrioc, "sas io unit page1 write persistent failed with ioc_status(0x%04x)\n",
6425 ioc_status);
6426 goto out_failed;
6427 }
6428 return 0;
6429 out_failed:
6430 return -1;
6431 }
6432
6433 /**
6434 * mpi3mr_cfg_get_driver_pg1 - Read current Driver page1
6435 * @mrioc: Adapter instance reference
6436 * @driver_pg1: Pointer to return Driver page 1
6437 * @pg_sz: Size of the memory allocated to the page pointer
6438 *
6439 * This is handler for config page read for the Driver page1.
6440 * This routine checks ioc_status to decide whether the page
6441 * read is success or not.
6442 *
6443 * Return: 0 on success, non-zero on failure.
6444 */
mpi3mr_cfg_get_driver_pg1(struct mpi3mr_ioc * mrioc,struct mpi3_driver_page1 * driver_pg1,u16 pg_sz)6445 int mpi3mr_cfg_get_driver_pg1(struct mpi3mr_ioc *mrioc,
6446 struct mpi3_driver_page1 *driver_pg1, u16 pg_sz)
6447 {
6448 struct mpi3_config_page_header cfg_hdr;
6449 struct mpi3_config_request cfg_req;
6450 u16 ioc_status = 0;
6451
6452 memset(driver_pg1, 0, pg_sz);
6453 memset(&cfg_hdr, 0, sizeof(cfg_hdr));
6454 memset(&cfg_req, 0, sizeof(cfg_req));
6455
6456 cfg_req.function = MPI3_FUNCTION_CONFIG;
6457 cfg_req.action = MPI3_CONFIG_ACTION_PAGE_HEADER;
6458 cfg_req.page_type = MPI3_CONFIG_PAGETYPE_DRIVER;
6459 cfg_req.page_number = 1;
6460 cfg_req.page_address = 0;
6461
6462 if (mpi3mr_process_cfg_req(mrioc, &cfg_req, NULL,
6463 MPI3MR_INTADMCMD_TIMEOUT, &ioc_status, &cfg_hdr, sizeof(cfg_hdr))) {
6464 ioc_err(mrioc, "driver page1 header read failed\n");
6465 goto out_failed;
6466 }
6467 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
6468 ioc_err(mrioc, "driver page1 header read failed with ioc_status(0x%04x)\n",
6469 ioc_status);
6470 goto out_failed;
6471 }
6472 cfg_req.action = MPI3_CONFIG_ACTION_READ_CURRENT;
6473
6474 if (mpi3mr_process_cfg_req(mrioc, &cfg_req, &cfg_hdr,
6475 MPI3MR_INTADMCMD_TIMEOUT, &ioc_status, driver_pg1, pg_sz)) {
6476 ioc_err(mrioc, "driver page1 read failed\n");
6477 goto out_failed;
6478 }
6479 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
6480 ioc_err(mrioc, "driver page1 read failed with ioc_status(0x%04x)\n",
6481 ioc_status);
6482 goto out_failed;
6483 }
6484 return 0;
6485 out_failed:
6486 return -1;
6487 }
6488
6489 /**
6490 * mpi3mr_cfg_get_driver_pg2 - Read current driver page2
6491 * @mrioc: Adapter instance reference
6492 * @driver_pg2: Pointer to return driver page 2
6493 * @pg_sz: Size of the memory allocated to the page pointer
6494 * @page_action: Page action
6495 *
6496 * This is handler for config page read for the driver page2.
6497 * This routine checks ioc_status to decide whether the page
6498 * read is success or not.
6499 *
6500 * Return: 0 on success, non-zero on failure.
6501 */
mpi3mr_cfg_get_driver_pg2(struct mpi3mr_ioc * mrioc,struct mpi3_driver_page2 * driver_pg2,u16 pg_sz,u8 page_action)6502 int mpi3mr_cfg_get_driver_pg2(struct mpi3mr_ioc *mrioc,
6503 struct mpi3_driver_page2 *driver_pg2, u16 pg_sz, u8 page_action)
6504 {
6505 struct mpi3_config_page_header cfg_hdr;
6506 struct mpi3_config_request cfg_req;
6507 u16 ioc_status = 0;
6508
6509 memset(driver_pg2, 0, pg_sz);
6510 memset(&cfg_hdr, 0, sizeof(cfg_hdr));
6511 memset(&cfg_req, 0, sizeof(cfg_req));
6512
6513 cfg_req.function = MPI3_FUNCTION_CONFIG;
6514 cfg_req.action = MPI3_CONFIG_ACTION_PAGE_HEADER;
6515 cfg_req.page_type = MPI3_CONFIG_PAGETYPE_DRIVER;
6516 cfg_req.page_number = 2;
6517 cfg_req.page_address = 0;
6518 cfg_req.page_version = MPI3_DRIVER2_PAGEVERSION;
6519
6520 if (mpi3mr_process_cfg_req(mrioc, &cfg_req, NULL,
6521 MPI3MR_INTADMCMD_TIMEOUT, &ioc_status, &cfg_hdr, sizeof(cfg_hdr))) {
6522 ioc_err(mrioc, "driver page2 header read failed\n");
6523 goto out_failed;
6524 }
6525 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
6526 ioc_err(mrioc, "driver page2 header read failed with\n"
6527 "ioc_status(0x%04x)\n",
6528 ioc_status);
6529 goto out_failed;
6530 }
6531 cfg_req.action = page_action;
6532
6533 if (mpi3mr_process_cfg_req(mrioc, &cfg_req, &cfg_hdr,
6534 MPI3MR_INTADMCMD_TIMEOUT, &ioc_status, driver_pg2, pg_sz)) {
6535 ioc_err(mrioc, "driver page2 read failed\n");
6536 goto out_failed;
6537 }
6538 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
6539 ioc_err(mrioc, "driver page2 read failed with\n"
6540 "ioc_status(0x%04x)\n",
6541 ioc_status);
6542 goto out_failed;
6543 }
6544 return 0;
6545 out_failed:
6546 return -1;
6547 }
6548
6549