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[SCSI] mpt2sas: Added sysfs counter for ioc reset
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / scsi / mpt2sas / mpt2sas_base.c
blob88befc79846968ae3a0f0e077cce250f45474f31
1 /*
2 * This is the Fusion MPT base driver providing common API layer interface
3 * for access to MPT (Message Passing Technology) firmware.
4 *
5 * This code is based on drivers/scsi/mpt2sas/mpt2_base.c
6 * Copyright (C) 2007-2010 LSI Corporation
7 * (mailto:DL-MPTFusionLinux@lsi.com)
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version 2
12 * of the License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * NO WARRANTY
20 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
21 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
22 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
23 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
24 * solely responsible for determining the appropriateness of using and
25 * distributing the Program and assumes all risks associated with its
26 * exercise of rights under this Agreement, including but not limited to
27 * the risks and costs of program errors, damage to or loss of data,
28 * programs or equipment, and unavailability or interruption of operations.
29
30 * DISCLAIMER OF LIABILITY
31 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
32 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
34 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
35 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
36 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
37 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
38
39 * You should have received a copy of the GNU General Public License
40 * along with this program; if not, write to the Free Software
41 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
42 * USA.
43 */
44
45 #include <linux/version.h>
46 #include <linux/kernel.h>
47 #include <linux/module.h>
48 #include <linux/errno.h>
49 #include <linux/init.h>
50 #include <linux/slab.h>
51 #include <linux/types.h>
52 #include <linux/pci.h>
53 #include <linux/kdev_t.h>
54 #include <linux/blkdev.h>
55 #include <linux/delay.h>
56 #include <linux/interrupt.h>
57 #include <linux/dma-mapping.h>
58 #include <linux/sort.h>
59 #include <linux/io.h>
60 #include <linux/time.h>
61 #include <linux/aer.h>
62
63 #include "mpt2sas_base.h"
64
65 static MPT_CALLBACK mpt_callbacks[MPT_MAX_CALLBACKS];
66
67 #define FAULT_POLLING_INTERVAL 1000 /* in milliseconds */
68 #define MPT2SAS_MAX_REQUEST_QUEUE 600 /* maximum controller queue depth */
69
70 static int max_queue_depth = -1;
71 module_param(max_queue_depth, int, 0);
72 MODULE_PARM_DESC(max_queue_depth, " max controller queue depth ");
73
74 static int max_sgl_entries = -1;
75 module_param(max_sgl_entries, int, 0);
76 MODULE_PARM_DESC(max_sgl_entries, " max sg entries ");
77
78 static int msix_disable = -1;
79 module_param(msix_disable, int, 0);
80 MODULE_PARM_DESC(msix_disable, " disable msix routed interrupts (default=0)");
81
82 /* diag_buffer_enable is bitwise
83 * bit 0 set = TRACE
84 * bit 1 set = SNAPSHOT
85 * bit 2 set = EXTENDED
86 *
87 * Either bit can be set, or both
88 */
89 static int diag_buffer_enable;
90 module_param(diag_buffer_enable, int, 0);
91 MODULE_PARM_DESC(diag_buffer_enable, " post diag buffers "
92 "(TRACE=1/SNAPSHOT=2/EXTENDED=4/default=0)");
93
94 int mpt2sas_fwfault_debug;
95 MODULE_PARM_DESC(mpt2sas_fwfault_debug, " enable detection of firmware fault "
96 "and halt firmware - (default=0)");
97
98 static int disable_discovery = -1;
99 module_param(disable_discovery, int, 0);
100 MODULE_PARM_DESC(disable_discovery, " disable discovery ");
101
102 /**
103 * _scsih_set_fwfault_debug - global setting of ioc->fwfault_debug.
104 *
105 */
106 static int
107 _scsih_set_fwfault_debug(const char *val, struct kernel_param *kp)
108 {
109 int ret = param_set_int(val, kp);
110 struct MPT2SAS_ADAPTER *ioc;
111
112 if (ret)
113 return ret;
114
115 printk(KERN_INFO "setting fwfault_debug(%d)\n", mpt2sas_fwfault_debug);
116 list_for_each_entry(ioc, &mpt2sas_ioc_list, list)
117 ioc->fwfault_debug = mpt2sas_fwfault_debug;
118 return 0;
119 }
120 module_param_call(mpt2sas_fwfault_debug, _scsih_set_fwfault_debug,
121 param_get_int, &mpt2sas_fwfault_debug, 0644);
122
123 /**
124 * _base_fault_reset_work - workq handling ioc fault conditions
125 * @work: input argument, used to derive ioc
126 * Context: sleep.
127 *
128 * Return nothing.
129 */
130 static void
131 _base_fault_reset_work(struct work_struct *work)
132 {
133 struct MPT2SAS_ADAPTER *ioc =
134 container_of(work, struct MPT2SAS_ADAPTER, fault_reset_work.work);
135 unsigned long flags;
136 u32 doorbell;
137 int rc;
138
139 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
140 if (ioc->shost_recovery)
141 goto rearm_timer;
142 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
143
144 doorbell = mpt2sas_base_get_iocstate(ioc, 0);
145 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
146 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
147 FORCE_BIG_HAMMER);
148 printk(MPT2SAS_WARN_FMT "%s: hard reset: %s\n", ioc->name,
149 __func__, (rc == 0) ? "success" : "failed");
150 doorbell = mpt2sas_base_get_iocstate(ioc, 0);
151 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT)
152 mpt2sas_base_fault_info(ioc, doorbell &
153 MPI2_DOORBELL_DATA_MASK);
154 }
155
156 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
157 rearm_timer:
158 if (ioc->fault_reset_work_q)
159 queue_delayed_work(ioc->fault_reset_work_q,
160 &ioc->fault_reset_work,
161 msecs_to_jiffies(FAULT_POLLING_INTERVAL));
162 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
163 }
164
165 /**
166 * mpt2sas_base_start_watchdog - start the fault_reset_work_q
167 * @ioc: per adapter object
168 * Context: sleep.
169 *
170 * Return nothing.
171 */
172 void
173 mpt2sas_base_start_watchdog(struct MPT2SAS_ADAPTER *ioc)
174 {
175 unsigned long flags;
176
177 if (ioc->fault_reset_work_q)
178 return;
179
180 /* initialize fault polling */
181 INIT_DELAYED_WORK(&ioc->fault_reset_work, _base_fault_reset_work);
182 snprintf(ioc->fault_reset_work_q_name,
183 sizeof(ioc->fault_reset_work_q_name), "poll_%d_status", ioc->id);
184 ioc->fault_reset_work_q =
185 create_singlethread_workqueue(ioc->fault_reset_work_q_name);
186 if (!ioc->fault_reset_work_q) {
187 printk(MPT2SAS_ERR_FMT "%s: failed (line=%d)\n",
188 ioc->name, __func__, __LINE__);
189 return;
190 }
191 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
192 if (ioc->fault_reset_work_q)
193 queue_delayed_work(ioc->fault_reset_work_q,
194 &ioc->fault_reset_work,
195 msecs_to_jiffies(FAULT_POLLING_INTERVAL));
196 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
197 }
198
199 /**
200 * mpt2sas_base_stop_watchdog - stop the fault_reset_work_q
201 * @ioc: per adapter object
202 * Context: sleep.
203 *
204 * Return nothing.
205 */
206 void
207 mpt2sas_base_stop_watchdog(struct MPT2SAS_ADAPTER *ioc)
208 {
209 unsigned long flags;
210 struct workqueue_struct *wq;
211
212 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
213 wq = ioc->fault_reset_work_q;
214 ioc->fault_reset_work_q = NULL;
215 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
216 if (wq) {
217 if (!cancel_delayed_work(&ioc->fault_reset_work))
218 flush_workqueue(wq);
219 destroy_workqueue(wq);
220 }
221 }
222
223 /**
224 * mpt2sas_base_fault_info - verbose translation of firmware FAULT code
225 * @ioc: per adapter object
226 * @fault_code: fault code
227 *
228 * Return nothing.
229 */
230 void
231 mpt2sas_base_fault_info(struct MPT2SAS_ADAPTER *ioc , u16 fault_code)
232 {
233 printk(MPT2SAS_ERR_FMT "fault_state(0x%04x)!\n",
234 ioc->name, fault_code);
235 }
236
237 /**
238 * mpt2sas_halt_firmware - halt's mpt controller firmware
239 * @ioc: per adapter object
240 *
241 * For debugging timeout related issues. Writing 0xCOFFEE00
242 * to the doorbell register will halt controller firmware. With
243 * the purpose to stop both driver and firmware, the enduser can
244 * obtain a ring buffer from controller UART.
245 */
246 void
247 mpt2sas_halt_firmware(struct MPT2SAS_ADAPTER *ioc)
248 {
249 u32 doorbell;
250
251 if (!ioc->fwfault_debug)
252 return;
253
254 dump_stack();
255
256 doorbell = readl(&ioc->chip->Doorbell);
257 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT)
258 mpt2sas_base_fault_info(ioc , doorbell);
259 else {
260 writel(0xC0FFEE00, &ioc->chip->Doorbell);
261 printk(MPT2SAS_ERR_FMT "Firmware is halted due to command "
262 "timeout\n", ioc->name);
263 }
264
265 panic("panic in %s\n", __func__);
266 }
267
268 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
269 /**
270 * _base_sas_ioc_info - verbose translation of the ioc status
271 * @ioc: per adapter object
272 * @mpi_reply: reply mf payload returned from firmware
273 * @request_hdr: request mf
274 *
275 * Return nothing.
276 */
277 static void
278 _base_sas_ioc_info(struct MPT2SAS_ADAPTER *ioc, MPI2DefaultReply_t *mpi_reply,
279 MPI2RequestHeader_t *request_hdr)
280 {
281 u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
282 MPI2_IOCSTATUS_MASK;
283 char *desc = NULL;
284 u16 frame_sz;
285 char *func_str = NULL;
286
287 /* SCSI_IO, RAID_PASS are handled from _scsih_scsi_ioc_info */
288 if (request_hdr->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
289 request_hdr->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
290 request_hdr->Function == MPI2_FUNCTION_EVENT_NOTIFICATION)
291 return;
292
293 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
294 return;
295
296 switch (ioc_status) {
297
298 /****************************************************************************
299 * Common IOCStatus values for all replies
300 ****************************************************************************/
301
302 case MPI2_IOCSTATUS_INVALID_FUNCTION:
303 desc = "invalid function";
304 break;
305 case MPI2_IOCSTATUS_BUSY:
306 desc = "busy";
307 break;
308 case MPI2_IOCSTATUS_INVALID_SGL:
309 desc = "invalid sgl";
310 break;
311 case MPI2_IOCSTATUS_INTERNAL_ERROR:
312 desc = "internal error";
313 break;
314 case MPI2_IOCSTATUS_INVALID_VPID:
315 desc = "invalid vpid";
316 break;
317 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
318 desc = "insufficient resources";
319 break;
320 case MPI2_IOCSTATUS_INVALID_FIELD:
321 desc = "invalid field";
322 break;
323 case MPI2_IOCSTATUS_INVALID_STATE:
324 desc = "invalid state";
325 break;
326 case MPI2_IOCSTATUS_OP_STATE_NOT_SUPPORTED:
327 desc = "op state not supported";
328 break;
329
330 /****************************************************************************
331 * Config IOCStatus values
332 ****************************************************************************/
333
334 case MPI2_IOCSTATUS_CONFIG_INVALID_ACTION:
335 desc = "config invalid action";
336 break;
337 case MPI2_IOCSTATUS_CONFIG_INVALID_TYPE:
338 desc = "config invalid type";
339 break;
340 case MPI2_IOCSTATUS_CONFIG_INVALID_PAGE:
341 desc = "config invalid page";
342 break;
343 case MPI2_IOCSTATUS_CONFIG_INVALID_DATA:
344 desc = "config invalid data";
345 break;
346 case MPI2_IOCSTATUS_CONFIG_NO_DEFAULTS:
347 desc = "config no defaults";
348 break;
349 case MPI2_IOCSTATUS_CONFIG_CANT_COMMIT:
350 desc = "config cant commit";
351 break;
352
353 /****************************************************************************
354 * SCSI IO Reply
355 ****************************************************************************/
356
357 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
358 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
359 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
360 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
361 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
362 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
363 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
364 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
365 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
366 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
367 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
368 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
369 break;
370
371 /****************************************************************************
372 * For use by SCSI Initiator and SCSI Target end-to-end data protection
373 ****************************************************************************/
374
375 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
376 desc = "eedp guard error";
377 break;
378 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
379 desc = "eedp ref tag error";
380 break;
381 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
382 desc = "eedp app tag error";
383 break;
384
385 /****************************************************************************
386 * SCSI Target values
387 ****************************************************************************/
388
389 case MPI2_IOCSTATUS_TARGET_INVALID_IO_INDEX:
390 desc = "target invalid io index";
391 break;
392 case MPI2_IOCSTATUS_TARGET_ABORTED:
393 desc = "target aborted";
394 break;
395 case MPI2_IOCSTATUS_TARGET_NO_CONN_RETRYABLE:
396 desc = "target no conn retryable";
397 break;
398 case MPI2_IOCSTATUS_TARGET_NO_CONNECTION:
399 desc = "target no connection";
400 break;
401 case MPI2_IOCSTATUS_TARGET_XFER_COUNT_MISMATCH:
402 desc = "target xfer count mismatch";
403 break;
404 case MPI2_IOCSTATUS_TARGET_DATA_OFFSET_ERROR:
405 desc = "target data offset error";
406 break;
407 case MPI2_IOCSTATUS_TARGET_TOO_MUCH_WRITE_DATA:
408 desc = "target too much write data";
409 break;
410 case MPI2_IOCSTATUS_TARGET_IU_TOO_SHORT:
411 desc = "target iu too short";
412 break;
413 case MPI2_IOCSTATUS_TARGET_ACK_NAK_TIMEOUT:
414 desc = "target ack nak timeout";
415 break;
416 case MPI2_IOCSTATUS_TARGET_NAK_RECEIVED:
417 desc = "target nak received";
418 break;
419
420 /****************************************************************************
421 * Serial Attached SCSI values
422 ****************************************************************************/
423
424 case MPI2_IOCSTATUS_SAS_SMP_REQUEST_FAILED:
425 desc = "smp request failed";
426 break;
427 case MPI2_IOCSTATUS_SAS_SMP_DATA_OVERRUN:
428 desc = "smp data overrun";
429 break;
430
431 /****************************************************************************
432 * Diagnostic Buffer Post / Diagnostic Release values
433 ****************************************************************************/
434
435 case MPI2_IOCSTATUS_DIAGNOSTIC_RELEASED:
436 desc = "diagnostic released";
437 break;
438 default:
439 break;
440 }
441
442 if (!desc)
443 return;
444
445 switch (request_hdr->Function) {
446 case MPI2_FUNCTION_CONFIG:
447 frame_sz = sizeof(Mpi2ConfigRequest_t) + ioc->sge_size;
448 func_str = "config_page";
449 break;
450 case MPI2_FUNCTION_SCSI_TASK_MGMT:
451 frame_sz = sizeof(Mpi2SCSITaskManagementRequest_t);
452 func_str = "task_mgmt";
453 break;
454 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
455 frame_sz = sizeof(Mpi2SasIoUnitControlRequest_t);
456 func_str = "sas_iounit_ctl";
457 break;
458 case MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR:
459 frame_sz = sizeof(Mpi2SepRequest_t);
460 func_str = "enclosure";
461 break;
462 case MPI2_FUNCTION_IOC_INIT:
463 frame_sz = sizeof(Mpi2IOCInitRequest_t);
464 func_str = "ioc_init";
465 break;
466 case MPI2_FUNCTION_PORT_ENABLE:
467 frame_sz = sizeof(Mpi2PortEnableRequest_t);
468 func_str = "port_enable";
469 break;
470 case MPI2_FUNCTION_SMP_PASSTHROUGH:
471 frame_sz = sizeof(Mpi2SmpPassthroughRequest_t) + ioc->sge_size;
472 func_str = "smp_passthru";
473 break;
474 default:
475 frame_sz = 32;
476 func_str = "unknown";
477 break;
478 }
479
480 printk(MPT2SAS_WARN_FMT "ioc_status: %s(0x%04x), request(0x%p),"
481 " (%s)\n", ioc->name, desc, ioc_status, request_hdr, func_str);
482
483 _debug_dump_mf(request_hdr, frame_sz/4);
484 }
485
486 /**
487 * _base_display_event_data - verbose translation of firmware asyn events
488 * @ioc: per adapter object
489 * @mpi_reply: reply mf payload returned from firmware
490 *
491 * Return nothing.
492 */
493 static void
494 _base_display_event_data(struct MPT2SAS_ADAPTER *ioc,
495 Mpi2EventNotificationReply_t *mpi_reply)
496 {
497 char *desc = NULL;
498 u16 event;
499
500 if (!(ioc->logging_level & MPT_DEBUG_EVENTS))
501 return;
502
503 event = le16_to_cpu(mpi_reply->Event);
504
505 switch (event) {
506 case MPI2_EVENT_LOG_DATA:
507 desc = "Log Data";
508 break;
509 case MPI2_EVENT_STATE_CHANGE:
510 desc = "Status Change";
511 break;
512 case MPI2_EVENT_HARD_RESET_RECEIVED:
513 desc = "Hard Reset Received";
514 break;
515 case MPI2_EVENT_EVENT_CHANGE:
516 desc = "Event Change";
517 break;
518 case MPI2_EVENT_TASK_SET_FULL:
519 desc = "Task Set Full";
520 break;
521 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
522 desc = "Device Status Change";
523 break;
524 case MPI2_EVENT_IR_OPERATION_STATUS:
525 desc = "IR Operation Status";
526 break;
527 case MPI2_EVENT_SAS_DISCOVERY:
528 {
529 Mpi2EventDataSasDiscovery_t *event_data =
530 (Mpi2EventDataSasDiscovery_t *)mpi_reply->EventData;
531 printk(MPT2SAS_INFO_FMT "Discovery: (%s)", ioc->name,
532 (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
533 "start" : "stop");
534 if (event_data->DiscoveryStatus)
535 printk("discovery_status(0x%08x)",
536 le32_to_cpu(event_data->DiscoveryStatus));
537 printk("\n");
538 return;
539 }
540 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
541 desc = "SAS Broadcast Primitive";
542 break;
543 case MPI2_EVENT_SAS_INIT_DEVICE_STATUS_CHANGE:
544 desc = "SAS Init Device Status Change";
545 break;
546 case MPI2_EVENT_SAS_INIT_TABLE_OVERFLOW:
547 desc = "SAS Init Table Overflow";
548 break;
549 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
550 desc = "SAS Topology Change List";
551 break;
552 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
553 desc = "SAS Enclosure Device Status Change";
554 break;
555 case MPI2_EVENT_IR_VOLUME:
556 desc = "IR Volume";
557 break;
558 case MPI2_EVENT_IR_PHYSICAL_DISK:
559 desc = "IR Physical Disk";
560 break;
561 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
562 desc = "IR Configuration Change List";
563 break;
564 case MPI2_EVENT_LOG_ENTRY_ADDED:
565 desc = "Log Entry Added";
566 break;
567 }
568
569 if (!desc)
570 return;
571
572 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, desc);
573 }
574 #endif
575
576 /**
577 * _base_sas_log_info - verbose translation of firmware log info
578 * @ioc: per adapter object
579 * @log_info: log info
580 *
581 * Return nothing.
582 */
583 static void
584 _base_sas_log_info(struct MPT2SAS_ADAPTER *ioc , u32 log_info)
585 {
586 union loginfo_type {
587 u32 loginfo;
588 struct {
589 u32 subcode:16;
590 u32 code:8;
591 u32 originator:4;
592 u32 bus_type:4;
593 } dw;
594 };
595 union loginfo_type sas_loginfo;
596 char *originator_str = NULL;
597
598 sas_loginfo.loginfo = log_info;
599 if (sas_loginfo.dw.bus_type != 3 /*SAS*/)
600 return;
601
602 /* each nexus loss loginfo */
603 if (log_info == 0x31170000)
604 return;
605
606 /* eat the loginfos associated with task aborts */
607 if (ioc->ignore_loginfos && (log_info == 30050000 || log_info ==
608 0x31140000 || log_info == 0x31130000))
609 return;
610
611 switch (sas_loginfo.dw.originator) {
612 case 0:
613 originator_str = "IOP";
614 break;
615 case 1:
616 originator_str = "PL";
617 break;
618 case 2:
619 originator_str = "IR";
620 break;
621 }
622
623 printk(MPT2SAS_WARN_FMT "log_info(0x%08x): originator(%s), "
624 "code(0x%02x), sub_code(0x%04x)\n", ioc->name, log_info,
625 originator_str, sas_loginfo.dw.code,
626 sas_loginfo.dw.subcode);
627 }
628
629 /**
630 * _base_display_reply_info -
631 * @ioc: per adapter object
632 * @smid: system request message index
633 * @msix_index: MSIX table index supplied by the OS
634 * @reply: reply message frame(lower 32bit addr)
635 *
636 * Return nothing.
637 */
638 static void
639 _base_display_reply_info(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
640 u32 reply)
641 {
642 MPI2DefaultReply_t *mpi_reply;
643 u16 ioc_status;
644
645 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
646 ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
647 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
648 if ((ioc_status & MPI2_IOCSTATUS_MASK) &&
649 (ioc->logging_level & MPT_DEBUG_REPLY)) {
650 _base_sas_ioc_info(ioc , mpi_reply,
651 mpt2sas_base_get_msg_frame(ioc, smid));
652 }
653 #endif
654 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
655 _base_sas_log_info(ioc, le32_to_cpu(mpi_reply->IOCLogInfo));
656 }
657
658 /**
659 * mpt2sas_base_done - base internal command completion routine
660 * @ioc: per adapter object
661 * @smid: system request message index
662 * @msix_index: MSIX table index supplied by the OS
663 * @reply: reply message frame(lower 32bit addr)
664 *
665 * Return 1 meaning mf should be freed from _base_interrupt
666 * 0 means the mf is freed from this function.
667 */
668 u8
669 mpt2sas_base_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
670 u32 reply)
671 {
672 MPI2DefaultReply_t *mpi_reply;
673
674 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
675 if (mpi_reply && mpi_reply->Function == MPI2_FUNCTION_EVENT_ACK)
676 return 1;
677
678 if (ioc->base_cmds.status == MPT2_CMD_NOT_USED)
679 return 1;
680
681 ioc->base_cmds.status |= MPT2_CMD_COMPLETE;
682 if (mpi_reply) {
683 ioc->base_cmds.status |= MPT2_CMD_REPLY_VALID;
684 memcpy(ioc->base_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
685 }
686 ioc->base_cmds.status &= ~MPT2_CMD_PENDING;
687 complete(&ioc->base_cmds.done);
688 return 1;
689 }
690
691 /**
692 * _base_async_event - main callback handler for firmware asyn events
693 * @ioc: per adapter object
694 * @msix_index: MSIX table index supplied by the OS
695 * @reply: reply message frame(lower 32bit addr)
696 *
697 * Return 1 meaning mf should be freed from _base_interrupt
698 * 0 means the mf is freed from this function.
699 */
700 static u8
701 _base_async_event(struct MPT2SAS_ADAPTER *ioc, u8 msix_index, u32 reply)
702 {
703 Mpi2EventNotificationReply_t *mpi_reply;
704 Mpi2EventAckRequest_t *ack_request;
705 u16 smid;
706
707 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
708 if (!mpi_reply)
709 return 1;
710 if (mpi_reply->Function != MPI2_FUNCTION_EVENT_NOTIFICATION)
711 return 1;
712 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
713 _base_display_event_data(ioc, mpi_reply);
714 #endif
715 if (!(mpi_reply->AckRequired & MPI2_EVENT_NOTIFICATION_ACK_REQUIRED))
716 goto out;
717 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx);
718 if (!smid) {
719 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
720 ioc->name, __func__);
721 goto out;
722 }
723
724 ack_request = mpt2sas_base_get_msg_frame(ioc, smid);
725 memset(ack_request, 0, sizeof(Mpi2EventAckRequest_t));
726 ack_request->Function = MPI2_FUNCTION_EVENT_ACK;
727 ack_request->Event = mpi_reply->Event;
728 ack_request->EventContext = mpi_reply->EventContext;
729 ack_request->VF_ID = 0; /* TODO */
730 ack_request->VP_ID = 0;
731 mpt2sas_base_put_smid_default(ioc, smid);
732
733 out:
734
735 /* scsih callback handler */
736 mpt2sas_scsih_event_callback(ioc, msix_index, reply);
737
738 /* ctl callback handler */
739 mpt2sas_ctl_event_callback(ioc, msix_index, reply);
740
741 return 1;
742 }
743
744 /**
745 * _base_get_cb_idx - obtain the callback index
746 * @ioc: per adapter object
747 * @smid: system request message index
748 *
749 * Return callback index.
750 */
751 static u8
752 _base_get_cb_idx(struct MPT2SAS_ADAPTER *ioc, u16 smid)
753 {
754 int i;
755 u8 cb_idx = 0xFF;
756
757 if (smid >= ioc->hi_priority_smid) {
758 if (smid < ioc->internal_smid) {
759 i = smid - ioc->hi_priority_smid;
760 cb_idx = ioc->hpr_lookup[i].cb_idx;
761 } else {
762 i = smid - ioc->internal_smid;
763 cb_idx = ioc->internal_lookup[i].cb_idx;
764 }
765 } else {
766 i = smid - 1;
767 cb_idx = ioc->scsi_lookup[i].cb_idx;
768 }
769 return cb_idx;
770 }
771
772 /**
773 * _base_mask_interrupts - disable interrupts
774 * @ioc: per adapter object
775 *
776 * Disabling ResetIRQ, Reply and Doorbell Interrupts
777 *
778 * Return nothing.
779 */
780 static void
781 _base_mask_interrupts(struct MPT2SAS_ADAPTER *ioc)
782 {
783 u32 him_register;
784
785 ioc->mask_interrupts = 1;
786 him_register = readl(&ioc->chip->HostInterruptMask);
787 him_register |= MPI2_HIM_DIM + MPI2_HIM_RIM + MPI2_HIM_RESET_IRQ_MASK;
788 writel(him_register, &ioc->chip->HostInterruptMask);
789 readl(&ioc->chip->HostInterruptMask);
790 }
791
792 /**
793 * _base_unmask_interrupts - enable interrupts
794 * @ioc: per adapter object
795 *
796 * Enabling only Reply Interrupts
797 *
798 * Return nothing.
799 */
800 static void
801 _base_unmask_interrupts(struct MPT2SAS_ADAPTER *ioc)
802 {
803 u32 him_register;
804
805 him_register = readl(&ioc->chip->HostInterruptMask);
806 him_register &= ~MPI2_HIM_RIM;
807 writel(him_register, &ioc->chip->HostInterruptMask);
808 ioc->mask_interrupts = 0;
809 }
810
811 union reply_descriptor {
812 u64 word;
813 struct {
814 u32 low;
815 u32 high;
816 } u;
817 };
818
819 /**
820 * _base_interrupt - MPT adapter (IOC) specific interrupt handler.
821 * @irq: irq number (not used)
822 * @bus_id: bus identifier cookie == pointer to MPT_ADAPTER structure
823 * @r: pt_regs pointer (not used)
824 *
825 * Return IRQ_HANDLE if processed, else IRQ_NONE.
826 */
827 static irqreturn_t
828 _base_interrupt(int irq, void *bus_id)
829 {
830 union reply_descriptor rd;
831 u32 completed_cmds;
832 u8 request_desript_type;
833 u16 smid;
834 u8 cb_idx;
835 u32 reply;
836 u8 msix_index;
837 struct MPT2SAS_ADAPTER *ioc = bus_id;
838 Mpi2ReplyDescriptorsUnion_t *rpf;
839 u8 rc;
840
841 if (ioc->mask_interrupts)
842 return IRQ_NONE;
843
844 rpf = &ioc->reply_post_free[ioc->reply_post_host_index];
845 request_desript_type = rpf->Default.ReplyFlags
846 & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
847 if (request_desript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED)
848 return IRQ_NONE;
849
850 completed_cmds = 0;
851 do {
852 rd.word = rpf->Words;
853 if (rd.u.low == UINT_MAX || rd.u.high == UINT_MAX)
854 goto out;
855 reply = 0;
856 cb_idx = 0xFF;
857 smid = le16_to_cpu(rpf->Default.DescriptorTypeDependent1);
858 msix_index = rpf->Default.MSIxIndex;
859 if (request_desript_type ==
860 MPI2_RPY_DESCRIPT_FLAGS_ADDRESS_REPLY) {
861 reply = le32_to_cpu
862 (rpf->AddressReply.ReplyFrameAddress);
863 } else if (request_desript_type ==
864 MPI2_RPY_DESCRIPT_FLAGS_TARGET_COMMAND_BUFFER)
865 goto next;
866 else if (request_desript_type ==
867 MPI2_RPY_DESCRIPT_FLAGS_TARGETASSIST_SUCCESS)
868 goto next;
869 if (smid)
870 cb_idx = _base_get_cb_idx(ioc, smid);
871 if (smid && cb_idx != 0xFF) {
872 rc = mpt_callbacks[cb_idx](ioc, smid, msix_index,
873 reply);
874 if (reply)
875 _base_display_reply_info(ioc, smid, msix_index,
876 reply);
877 if (rc)
878 mpt2sas_base_free_smid(ioc, smid);
879 }
880 if (!smid)
881 _base_async_event(ioc, msix_index, reply);
882
883 /* reply free queue handling */
884 if (reply) {
885 ioc->reply_free_host_index =
886 (ioc->reply_free_host_index ==
887 (ioc->reply_free_queue_depth - 1)) ?
888 0 : ioc->reply_free_host_index + 1;
889 ioc->reply_free[ioc->reply_free_host_index] =
890 cpu_to_le32(reply);
891 wmb();
892 writel(ioc->reply_free_host_index,
893 &ioc->chip->ReplyFreeHostIndex);
894 }
895
896 next:
897
898 rpf->Words = ULLONG_MAX;
899 ioc->reply_post_host_index = (ioc->reply_post_host_index ==
900 (ioc->reply_post_queue_depth - 1)) ? 0 :
901 ioc->reply_post_host_index + 1;
902 request_desript_type =
903 ioc->reply_post_free[ioc->reply_post_host_index].Default.
904 ReplyFlags & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
905 completed_cmds++;
906 if (request_desript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED)
907 goto out;
908 if (!ioc->reply_post_host_index)
909 rpf = ioc->reply_post_free;
910 else
911 rpf++;
912 } while (1);
913
914 out:
915
916 if (!completed_cmds)
917 return IRQ_NONE;
918
919 wmb();
920 writel(ioc->reply_post_host_index, &ioc->chip->ReplyPostHostIndex);
921 return IRQ_HANDLED;
922 }
923
924 /**
925 * mpt2sas_base_release_callback_handler - clear interupt callback handler
926 * @cb_idx: callback index
927 *
928 * Return nothing.
929 */
930 void
931 mpt2sas_base_release_callback_handler(u8 cb_idx)
932 {
933 mpt_callbacks[cb_idx] = NULL;
934 }
935
936 /**
937 * mpt2sas_base_register_callback_handler - obtain index for the interrupt callback handler
938 * @cb_func: callback function
939 *
940 * Returns cb_func.
941 */
942 u8
943 mpt2sas_base_register_callback_handler(MPT_CALLBACK cb_func)
944 {
945 u8 cb_idx;
946
947 for (cb_idx = MPT_MAX_CALLBACKS-1; cb_idx; cb_idx--)
948 if (mpt_callbacks[cb_idx] == NULL)
949 break;
950
951 mpt_callbacks[cb_idx] = cb_func;
952 return cb_idx;
953 }
954
955 /**
956 * mpt2sas_base_initialize_callback_handler - initialize the interrupt callback handler
957 *
958 * Return nothing.
959 */
960 void
961 mpt2sas_base_initialize_callback_handler(void)
962 {
963 u8 cb_idx;
964
965 for (cb_idx = 0; cb_idx < MPT_MAX_CALLBACKS; cb_idx++)
966 mpt2sas_base_release_callback_handler(cb_idx);
967 }
968
969 /**
970 * mpt2sas_base_build_zero_len_sge - build zero length sg entry
971 * @ioc: per adapter object
972 * @paddr: virtual address for SGE
973 *
974 * Create a zero length scatter gather entry to insure the IOCs hardware has
975 * something to use if the target device goes brain dead and tries
976 * to send data even when none is asked for.
977 *
978 * Return nothing.
979 */
980 void
981 mpt2sas_base_build_zero_len_sge(struct MPT2SAS_ADAPTER *ioc, void *paddr)
982 {
983 u32 flags_length = (u32)((MPI2_SGE_FLAGS_LAST_ELEMENT |
984 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST |
985 MPI2_SGE_FLAGS_SIMPLE_ELEMENT) <<
986 MPI2_SGE_FLAGS_SHIFT);
987 ioc->base_add_sg_single(paddr, flags_length, -1);
988 }
989
990 /**
991 * _base_add_sg_single_32 - Place a simple 32 bit SGE at address pAddr.
992 * @paddr: virtual address for SGE
993 * @flags_length: SGE flags and data transfer length
994 * @dma_addr: Physical address
995 *
996 * Return nothing.
997 */
998 static void
999 _base_add_sg_single_32(void *paddr, u32 flags_length, dma_addr_t dma_addr)
1000 {
1001 Mpi2SGESimple32_t *sgel = paddr;
1002
1003 flags_length |= (MPI2_SGE_FLAGS_32_BIT_ADDRESSING |
1004 MPI2_SGE_FLAGS_SYSTEM_ADDRESS) << MPI2_SGE_FLAGS_SHIFT;
1005 sgel->FlagsLength = cpu_to_le32(flags_length);
1006 sgel->Address = cpu_to_le32(dma_addr);
1007 }
1008
1009
1010 /**
1011 * _base_add_sg_single_64 - Place a simple 64 bit SGE at address pAddr.
1012 * @paddr: virtual address for SGE
1013 * @flags_length: SGE flags and data transfer length
1014 * @dma_addr: Physical address
1015 *
1016 * Return nothing.
1017 */
1018 static void
1019 _base_add_sg_single_64(void *paddr, u32 flags_length, dma_addr_t dma_addr)
1020 {
1021 Mpi2SGESimple64_t *sgel = paddr;
1022
1023 flags_length |= (MPI2_SGE_FLAGS_64_BIT_ADDRESSING |
1024 MPI2_SGE_FLAGS_SYSTEM_ADDRESS) << MPI2_SGE_FLAGS_SHIFT;
1025 sgel->FlagsLength = cpu_to_le32(flags_length);
1026 sgel->Address = cpu_to_le64(dma_addr);
1027 }
1028
1029 #define convert_to_kb(x) ((x) << (PAGE_SHIFT - 10))
1030
1031 /**
1032 * _base_config_dma_addressing - set dma addressing
1033 * @ioc: per adapter object
1034 * @pdev: PCI device struct
1035 *
1036 * Returns 0 for success, non-zero for failure.
1037 */
1038 static int
1039 _base_config_dma_addressing(struct MPT2SAS_ADAPTER *ioc, struct pci_dev *pdev)
1040 {
1041 struct sysinfo s;
1042 char *desc = NULL;
1043
1044 if (sizeof(dma_addr_t) > 4) {
1045 const uint64_t required_mask =
1046 dma_get_required_mask(&pdev->dev);
1047 if ((required_mask > DMA_BIT_MASK(32)) && !pci_set_dma_mask(pdev,
1048 DMA_BIT_MASK(64)) && !pci_set_consistent_dma_mask(pdev,
1049 DMA_BIT_MASK(64))) {
1050 ioc->base_add_sg_single = &_base_add_sg_single_64;
1051 ioc->sge_size = sizeof(Mpi2SGESimple64_t);
1052 desc = "64";
1053 goto out;
1054 }
1055 }
1056
1057 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
1058 && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
1059 ioc->base_add_sg_single = &_base_add_sg_single_32;
1060 ioc->sge_size = sizeof(Mpi2SGESimple32_t);
1061 desc = "32";
1062 } else
1063 return -ENODEV;
1064
1065 out:
1066 si_meminfo(&s);
1067 printk(MPT2SAS_INFO_FMT "%s BIT PCI BUS DMA ADDRESSING SUPPORTED, "
1068 "total mem (%ld kB)\n", ioc->name, desc, convert_to_kb(s.totalram));
1069
1070 return 0;
1071 }
1072
1073 /**
1074 * _base_save_msix_table - backup msix vector table
1075 * @ioc: per adapter object
1076 *
1077 * This address an errata where diag reset clears out the table
1078 */
1079 static void
1080 _base_save_msix_table(struct MPT2SAS_ADAPTER *ioc)
1081 {
1082 int i;
1083
1084 if (!ioc->msix_enable || ioc->msix_table_backup == NULL)
1085 return;
1086
1087 for (i = 0; i < ioc->msix_vector_count; i++)
1088 ioc->msix_table_backup[i] = ioc->msix_table[i];
1089 }
1090
1091 /**
1092 * _base_restore_msix_table - this restores the msix vector table
1093 * @ioc: per adapter object
1094 *
1095 */
1096 static void
1097 _base_restore_msix_table(struct MPT2SAS_ADAPTER *ioc)
1098 {
1099 int i;
1100
1101 if (!ioc->msix_enable || ioc->msix_table_backup == NULL)
1102 return;
1103
1104 for (i = 0; i < ioc->msix_vector_count; i++)
1105 ioc->msix_table[i] = ioc->msix_table_backup[i];
1106 }
1107
1108 /**
1109 * _base_check_enable_msix - checks MSIX capabable.
1110 * @ioc: per adapter object
1111 *
1112 * Check to see if card is capable of MSIX, and set number
1113 * of avaliable msix vectors
1114 */
1115 static int
1116 _base_check_enable_msix(struct MPT2SAS_ADAPTER *ioc)
1117 {
1118 int base;
1119 u16 message_control;
1120 u32 msix_table_offset;
1121
1122 base = pci_find_capability(ioc->pdev, PCI_CAP_ID_MSIX);
1123 if (!base) {
1124 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "msix not "
1125 "supported\n", ioc->name));
1126 return -EINVAL;
1127 }
1128
1129 /* get msix vector count */
1130 pci_read_config_word(ioc->pdev, base + 2, &message_control);
1131 ioc->msix_vector_count = (message_control & 0x3FF) + 1;
1132
1133 /* get msix table */
1134 pci_read_config_dword(ioc->pdev, base + 4, &msix_table_offset);
1135 msix_table_offset &= 0xFFFFFFF8;
1136 ioc->msix_table = (u32 *)((void *)ioc->chip + msix_table_offset);
1137
1138 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "msix is supported, "
1139 "vector_count(%d), table_offset(0x%08x), table(%p)\n", ioc->name,
1140 ioc->msix_vector_count, msix_table_offset, ioc->msix_table));
1141 return 0;
1142 }
1143
1144 /**
1145 * _base_disable_msix - disables msix
1146 * @ioc: per adapter object
1147 *
1148 */
1149 static void
1150 _base_disable_msix(struct MPT2SAS_ADAPTER *ioc)
1151 {
1152 if (ioc->msix_enable) {
1153 pci_disable_msix(ioc->pdev);
1154 kfree(ioc->msix_table_backup);
1155 ioc->msix_table_backup = NULL;
1156 ioc->msix_enable = 0;
1157 }
1158 }
1159
1160 /**
1161 * _base_enable_msix - enables msix, failback to io_apic
1162 * @ioc: per adapter object
1163 *
1164 */
1165 static int
1166 _base_enable_msix(struct MPT2SAS_ADAPTER *ioc)
1167 {
1168 struct msix_entry entries;
1169 int r;
1170 u8 try_msix = 0;
1171
1172 if (msix_disable == -1 || msix_disable == 0)
1173 try_msix = 1;
1174
1175 if (!try_msix)
1176 goto try_ioapic;
1177
1178 if (_base_check_enable_msix(ioc) != 0)
1179 goto try_ioapic;
1180
1181 ioc->msix_table_backup = kcalloc(ioc->msix_vector_count,
1182 sizeof(u32), GFP_KERNEL);
1183 if (!ioc->msix_table_backup) {
1184 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "allocation for "
1185 "msix_table_backup failed!!!\n", ioc->name));
1186 goto try_ioapic;
1187 }
1188
1189 memset(&entries, 0, sizeof(struct msix_entry));
1190 r = pci_enable_msix(ioc->pdev, &entries, 1);
1191 if (r) {
1192 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "pci_enable_msix "
1193 "failed (r=%d) !!!\n", ioc->name, r));
1194 goto try_ioapic;
1195 }
1196
1197 r = request_irq(entries.vector, _base_interrupt, IRQF_SHARED,
1198 ioc->name, ioc);
1199 if (r) {
1200 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "unable to allocate "
1201 "interrupt %d !!!\n", ioc->name, entries.vector));
1202 pci_disable_msix(ioc->pdev);
1203 goto try_ioapic;
1204 }
1205
1206 ioc->pci_irq = entries.vector;
1207 ioc->msix_enable = 1;
1208 return 0;
1209
1210 /* failback to io_apic interrupt routing */
1211 try_ioapic:
1212
1213 r = request_irq(ioc->pdev->irq, _base_interrupt, IRQF_SHARED,
1214 ioc->name, ioc);
1215 if (r) {
1216 printk(MPT2SAS_ERR_FMT "unable to allocate interrupt %d!\n",
1217 ioc->name, ioc->pdev->irq);
1218 r = -EBUSY;
1219 goto out_fail;
1220 }
1221
1222 ioc->pci_irq = ioc->pdev->irq;
1223 return 0;
1224
1225 out_fail:
1226 return r;
1227 }
1228
1229 /**
1230 * mpt2sas_base_map_resources - map in controller resources (io/irq/memap)
1231 * @ioc: per adapter object
1232 *
1233 * Returns 0 for success, non-zero for failure.
1234 */
1235 int
1236 mpt2sas_base_map_resources(struct MPT2SAS_ADAPTER *ioc)
1237 {
1238 struct pci_dev *pdev = ioc->pdev;
1239 u32 memap_sz;
1240 u32 pio_sz;
1241 int i, r = 0;
1242 u64 pio_chip = 0;
1243 u64 chip_phys = 0;
1244
1245 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n",
1246 ioc->name, __func__));
1247
1248 ioc->bars = pci_select_bars(pdev, IORESOURCE_MEM);
1249 if (pci_enable_device_mem(pdev)) {
1250 printk(MPT2SAS_WARN_FMT "pci_enable_device_mem: "
1251 "failed\n", ioc->name);
1252 return -ENODEV;
1253 }
1254
1255
1256 if (pci_request_selected_regions(pdev, ioc->bars,
1257 MPT2SAS_DRIVER_NAME)) {
1258 printk(MPT2SAS_WARN_FMT "pci_request_selected_regions: "
1259 "failed\n", ioc->name);
1260 r = -ENODEV;
1261 goto out_fail;
1262 }
1263
1264 /* AER (Advanced Error Reporting) hooks */
1265 pci_enable_pcie_error_reporting(pdev);
1266
1267 pci_set_master(pdev);
1268
1269 if (_base_config_dma_addressing(ioc, pdev) != 0) {
1270 printk(MPT2SAS_WARN_FMT "no suitable DMA mask for %s\n",
1271 ioc->name, pci_name(pdev));
1272 r = -ENODEV;
1273 goto out_fail;
1274 }
1275
1276 for (i = 0, memap_sz = 0, pio_sz = 0 ; i < DEVICE_COUNT_RESOURCE; i++) {
1277 if (pci_resource_flags(pdev, i) & IORESOURCE_IO) {
1278 if (pio_sz)
1279 continue;
1280 pio_chip = (u64)pci_resource_start(pdev, i);
1281 pio_sz = pci_resource_len(pdev, i);
1282 } else {
1283 if (memap_sz)
1284 continue;
1285 /* verify memory resource is valid before using */
1286 if (pci_resource_flags(pdev, i) & IORESOURCE_MEM) {
1287 ioc->chip_phys = pci_resource_start(pdev, i);
1288 chip_phys = (u64)ioc->chip_phys;
1289 memap_sz = pci_resource_len(pdev, i);
1290 ioc->chip = ioremap(ioc->chip_phys, memap_sz);
1291 if (ioc->chip == NULL) {
1292 printk(MPT2SAS_ERR_FMT "unable to map "
1293 "adapter memory!\n", ioc->name);
1294 r = -EINVAL;
1295 goto out_fail;
1296 }
1297 }
1298 }
1299 }
1300
1301 _base_mask_interrupts(ioc);
1302 r = _base_enable_msix(ioc);
1303 if (r)
1304 goto out_fail;
1305
1306 printk(MPT2SAS_INFO_FMT "%s: IRQ %d\n",
1307 ioc->name, ((ioc->msix_enable) ? "PCI-MSI-X enabled" :
1308 "IO-APIC enabled"), ioc->pci_irq);
1309 printk(MPT2SAS_INFO_FMT "iomem(0x%016llx), mapped(0x%p), size(%d)\n",
1310 ioc->name, (unsigned long long)chip_phys, ioc->chip, memap_sz);
1311 printk(MPT2SAS_INFO_FMT "ioport(0x%016llx), size(%d)\n",
1312 ioc->name, (unsigned long long)pio_chip, pio_sz);
1313
1314 return 0;
1315
1316 out_fail:
1317 if (ioc->chip_phys)
1318 iounmap(ioc->chip);
1319 ioc->chip_phys = 0;
1320 ioc->pci_irq = -1;
1321 pci_release_selected_regions(ioc->pdev, ioc->bars);
1322 pci_disable_pcie_error_reporting(pdev);
1323 pci_disable_device(pdev);
1324 return r;
1325 }
1326
1327 /**
1328 * mpt2sas_base_get_msg_frame - obtain request mf pointer
1329 * @ioc: per adapter object
1330 * @smid: system request message index(smid zero is invalid)
1331 *
1332 * Returns virt pointer to message frame.
1333 */
1334 void *
1335 mpt2sas_base_get_msg_frame(struct MPT2SAS_ADAPTER *ioc, u16 smid)
1336 {
1337 return (void *)(ioc->request + (smid * ioc->request_sz));
1338 }
1339
1340 /**
1341 * mpt2sas_base_get_sense_buffer - obtain a sense buffer assigned to a mf request
1342 * @ioc: per adapter object
1343 * @smid: system request message index
1344 *
1345 * Returns virt pointer to sense buffer.
1346 */
1347 void *
1348 mpt2sas_base_get_sense_buffer(struct MPT2SAS_ADAPTER *ioc, u16 smid)
1349 {
1350 return (void *)(ioc->sense + ((smid - 1) * SCSI_SENSE_BUFFERSIZE));
1351 }
1352
1353 /**
1354 * mpt2sas_base_get_sense_buffer_dma - obtain a sense buffer assigned to a mf request
1355 * @ioc: per adapter object
1356 * @smid: system request message index
1357 *
1358 * Returns phys pointer to the low 32bit address of the sense buffer.
1359 */
1360 __le32
1361 mpt2sas_base_get_sense_buffer_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid)
1362 {
1363 return cpu_to_le32(ioc->sense_dma +
1364 ((smid - 1) * SCSI_SENSE_BUFFERSIZE));
1365 }
1366
1367 /**
1368 * mpt2sas_base_get_reply_virt_addr - obtain reply frames virt address
1369 * @ioc: per adapter object
1370 * @phys_addr: lower 32 physical addr of the reply
1371 *
1372 * Converts 32bit lower physical addr into a virt address.
1373 */
1374 void *
1375 mpt2sas_base_get_reply_virt_addr(struct MPT2SAS_ADAPTER *ioc, u32 phys_addr)
1376 {
1377 if (!phys_addr)
1378 return NULL;
1379 return ioc->reply + (phys_addr - (u32)ioc->reply_dma);
1380 }
1381
1382 /**
1383 * mpt2sas_base_get_smid - obtain a free smid from internal queue
1384 * @ioc: per adapter object
1385 * @cb_idx: callback index
1386 *
1387 * Returns smid (zero is invalid)
1388 */
1389 u16
1390 mpt2sas_base_get_smid(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx)
1391 {
1392 unsigned long flags;
1393 struct request_tracker *request;
1394 u16 smid;
1395
1396 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1397 if (list_empty(&ioc->internal_free_list)) {
1398 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1399 printk(MPT2SAS_ERR_FMT "%s: smid not available\n",
1400 ioc->name, __func__);
1401 return 0;
1402 }
1403
1404 request = list_entry(ioc->internal_free_list.next,
1405 struct request_tracker, tracker_list);
1406 request->cb_idx = cb_idx;
1407 smid = request->smid;
1408 list_del(&request->tracker_list);
1409 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1410 return smid;
1411 }
1412
1413 /**
1414 * mpt2sas_base_get_smid_scsiio - obtain a free smid from scsiio queue
1415 * @ioc: per adapter object
1416 * @cb_idx: callback index
1417 * @scmd: pointer to scsi command object
1418 *
1419 * Returns smid (zero is invalid)
1420 */
1421 u16
1422 mpt2sas_base_get_smid_scsiio(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx,
1423 struct scsi_cmnd *scmd)
1424 {
1425 unsigned long flags;
1426 struct request_tracker *request;
1427 u16 smid;
1428
1429 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1430 if (list_empty(&ioc->free_list)) {
1431 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1432 printk(MPT2SAS_ERR_FMT "%s: smid not available\n",
1433 ioc->name, __func__);
1434 return 0;
1435 }
1436
1437 request = list_entry(ioc->free_list.next,
1438 struct request_tracker, tracker_list);
1439 request->scmd = scmd;
1440 request->cb_idx = cb_idx;
1441 smid = request->smid;
1442 list_del(&request->tracker_list);
1443 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1444 return smid;
1445 }
1446
1447 /**
1448 * mpt2sas_base_get_smid_hpr - obtain a free smid from hi-priority queue
1449 * @ioc: per adapter object
1450 * @cb_idx: callback index
1451 *
1452 * Returns smid (zero is invalid)
1453 */
1454 u16
1455 mpt2sas_base_get_smid_hpr(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx)
1456 {
1457 unsigned long flags;
1458 struct request_tracker *request;
1459 u16 smid;
1460
1461 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1462 if (list_empty(&ioc->hpr_free_list)) {
1463 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1464 return 0;
1465 }
1466
1467 request = list_entry(ioc->hpr_free_list.next,
1468 struct request_tracker, tracker_list);
1469 request->cb_idx = cb_idx;
1470 smid = request->smid;
1471 list_del(&request->tracker_list);
1472 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1473 return smid;
1474 }
1475
1476
1477 /**
1478 * mpt2sas_base_free_smid - put smid back on free_list
1479 * @ioc: per adapter object
1480 * @smid: system request message index
1481 *
1482 * Return nothing.
1483 */
1484 void
1485 mpt2sas_base_free_smid(struct MPT2SAS_ADAPTER *ioc, u16 smid)
1486 {
1487 unsigned long flags;
1488 int i;
1489
1490 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1491 if (smid >= ioc->hi_priority_smid) {
1492 if (smid < ioc->internal_smid) {
1493 /* hi-priority */
1494 i = smid - ioc->hi_priority_smid;
1495 ioc->hpr_lookup[i].cb_idx = 0xFF;
1496 list_add_tail(&ioc->hpr_lookup[i].tracker_list,
1497 &ioc->hpr_free_list);
1498 } else {
1499 /* internal queue */
1500 i = smid - ioc->internal_smid;
1501 ioc->internal_lookup[i].cb_idx = 0xFF;
1502 list_add_tail(&ioc->internal_lookup[i].tracker_list,
1503 &ioc->internal_free_list);
1504 }
1505 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1506 return;
1507 }
1508
1509 /* scsiio queue */
1510 i = smid - 1;
1511 ioc->scsi_lookup[i].cb_idx = 0xFF;
1512 ioc->scsi_lookup[i].scmd = NULL;
1513 list_add_tail(&ioc->scsi_lookup[i].tracker_list,
1514 &ioc->free_list);
1515 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1516
1517 /*
1518 * See _wait_for_commands_to_complete() call with regards to this code.
1519 */
1520 if (ioc->shost_recovery && ioc->pending_io_count) {
1521 if (ioc->pending_io_count == 1)
1522 wake_up(&ioc->reset_wq);
1523 ioc->pending_io_count--;
1524 }
1525 }
1526
1527 /**
1528 * _base_writeq - 64 bit write to MMIO
1529 * @ioc: per adapter object
1530 * @b: data payload
1531 * @addr: address in MMIO space
1532 * @writeq_lock: spin lock
1533 *
1534 * Glue for handling an atomic 64 bit word to MMIO. This special handling takes
1535 * care of 32 bit environment where its not quarenteed to send the entire word
1536 * in one transfer.
1537 */
1538 #ifndef writeq
1539 static inline void _base_writeq(__u64 b, volatile void __iomem *addr,
1540 spinlock_t *writeq_lock)
1541 {
1542 unsigned long flags;
1543 __u64 data_out = cpu_to_le64(b);
1544
1545 spin_lock_irqsave(writeq_lock, flags);
1546 writel((u32)(data_out), addr);
1547 writel((u32)(data_out >> 32), (addr + 4));
1548 spin_unlock_irqrestore(writeq_lock, flags);
1549 }
1550 #else
1551 static inline void _base_writeq(__u64 b, volatile void __iomem *addr,
1552 spinlock_t *writeq_lock)
1553 {
1554 writeq(cpu_to_le64(b), addr);
1555 }
1556 #endif
1557
1558 /**
1559 * mpt2sas_base_put_smid_scsi_io - send SCSI_IO request to firmware
1560 * @ioc: per adapter object
1561 * @smid: system request message index
1562 * @handle: device handle
1563 *
1564 * Return nothing.
1565 */
1566 void
1567 mpt2sas_base_put_smid_scsi_io(struct MPT2SAS_ADAPTER *ioc, u16 smid, u16 handle)
1568 {
1569 Mpi2RequestDescriptorUnion_t descriptor;
1570 u64 *request = (u64 *)&descriptor;
1571
1572
1573 descriptor.SCSIIO.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO;
1574 descriptor.SCSIIO.MSIxIndex = 0; /* TODO */
1575 descriptor.SCSIIO.SMID = cpu_to_le16(smid);
1576 descriptor.SCSIIO.DevHandle = cpu_to_le16(handle);
1577 descriptor.SCSIIO.LMID = 0;
1578 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
1579 &ioc->scsi_lookup_lock);
1580 }
1581
1582
1583 /**
1584 * mpt2sas_base_put_smid_hi_priority - send Task Managment request to firmware
1585 * @ioc: per adapter object
1586 * @smid: system request message index
1587 *
1588 * Return nothing.
1589 */
1590 void
1591 mpt2sas_base_put_smid_hi_priority(struct MPT2SAS_ADAPTER *ioc, u16 smid)
1592 {
1593 Mpi2RequestDescriptorUnion_t descriptor;
1594 u64 *request = (u64 *)&descriptor;
1595
1596 descriptor.HighPriority.RequestFlags =
1597 MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY;
1598 descriptor.HighPriority.MSIxIndex = 0; /* TODO */
1599 descriptor.HighPriority.SMID = cpu_to_le16(smid);
1600 descriptor.HighPriority.LMID = 0;
1601 descriptor.HighPriority.Reserved1 = 0;
1602 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
1603 &ioc->scsi_lookup_lock);
1604 }
1605
1606 /**
1607 * mpt2sas_base_put_smid_default - Default, primarily used for config pages
1608 * @ioc: per adapter object
1609 * @smid: system request message index
1610 *
1611 * Return nothing.
1612 */
1613 void
1614 mpt2sas_base_put_smid_default(struct MPT2SAS_ADAPTER *ioc, u16 smid)
1615 {
1616 Mpi2RequestDescriptorUnion_t descriptor;
1617 u64 *request = (u64 *)&descriptor;
1618
1619 descriptor.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
1620 descriptor.Default.MSIxIndex = 0; /* TODO */
1621 descriptor.Default.SMID = cpu_to_le16(smid);
1622 descriptor.Default.LMID = 0;
1623 descriptor.Default.DescriptorTypeDependent = 0;
1624 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
1625 &ioc->scsi_lookup_lock);
1626 }
1627
1628 /**
1629 * mpt2sas_base_put_smid_target_assist - send Target Assist/Status to firmware
1630 * @ioc: per adapter object
1631 * @smid: system request message index
1632 * @io_index: value used to track the IO
1633 *
1634 * Return nothing.
1635 */
1636 void
1637 mpt2sas_base_put_smid_target_assist(struct MPT2SAS_ADAPTER *ioc, u16 smid,
1638 u16 io_index)
1639 {
1640 Mpi2RequestDescriptorUnion_t descriptor;
1641 u64 *request = (u64 *)&descriptor;
1642
1643 descriptor.SCSITarget.RequestFlags =
1644 MPI2_REQ_DESCRIPT_FLAGS_SCSI_TARGET;
1645 descriptor.SCSITarget.MSIxIndex = 0; /* TODO */
1646 descriptor.SCSITarget.SMID = cpu_to_le16(smid);
1647 descriptor.SCSITarget.LMID = 0;
1648 descriptor.SCSITarget.IoIndex = cpu_to_le16(io_index);
1649 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
1650 &ioc->scsi_lookup_lock);
1651 }
1652
1653 /**
1654 * _base_display_dell_branding - Disply branding string
1655 * @ioc: per adapter object
1656 *
1657 * Return nothing.
1658 */
1659 static void
1660 _base_display_dell_branding(struct MPT2SAS_ADAPTER *ioc)
1661 {
1662 char dell_branding[MPT2SAS_DELL_BRANDING_SIZE];
1663
1664 if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_DELL)
1665 return;
1666
1667 memset(dell_branding, 0, MPT2SAS_DELL_BRANDING_SIZE);
1668 switch (ioc->pdev->subsystem_device) {
1669 case MPT2SAS_DELL_6GBPS_SAS_HBA_SSDID:
1670 strncpy(dell_branding, MPT2SAS_DELL_6GBPS_SAS_HBA_BRANDING,
1671 MPT2SAS_DELL_BRANDING_SIZE - 1);
1672 break;
1673 case MPT2SAS_DELL_PERC_H200_ADAPTER_SSDID:
1674 strncpy(dell_branding, MPT2SAS_DELL_PERC_H200_ADAPTER_BRANDING,
1675 MPT2SAS_DELL_BRANDING_SIZE - 1);
1676 break;
1677 case MPT2SAS_DELL_PERC_H200_INTEGRATED_SSDID:
1678 strncpy(dell_branding,
1679 MPT2SAS_DELL_PERC_H200_INTEGRATED_BRANDING,
1680 MPT2SAS_DELL_BRANDING_SIZE - 1);
1681 break;
1682 case MPT2SAS_DELL_PERC_H200_MODULAR_SSDID:
1683 strncpy(dell_branding,
1684 MPT2SAS_DELL_PERC_H200_MODULAR_BRANDING,
1685 MPT2SAS_DELL_BRANDING_SIZE - 1);
1686 break;
1687 case MPT2SAS_DELL_PERC_H200_EMBEDDED_SSDID:
1688 strncpy(dell_branding,
1689 MPT2SAS_DELL_PERC_H200_EMBEDDED_BRANDING,
1690 MPT2SAS_DELL_BRANDING_SIZE - 1);
1691 break;
1692 case MPT2SAS_DELL_PERC_H200_SSDID:
1693 strncpy(dell_branding, MPT2SAS_DELL_PERC_H200_BRANDING,
1694 MPT2SAS_DELL_BRANDING_SIZE - 1);
1695 break;
1696 case MPT2SAS_DELL_6GBPS_SAS_SSDID:
1697 strncpy(dell_branding, MPT2SAS_DELL_6GBPS_SAS_BRANDING,
1698 MPT2SAS_DELL_BRANDING_SIZE - 1);
1699 break;
1700 default:
1701 sprintf(dell_branding, "0x%4X", ioc->pdev->subsystem_device);
1702 break;
1703 }
1704
1705 printk(MPT2SAS_INFO_FMT "%s: Vendor(0x%04X), Device(0x%04X),"
1706 " SSVID(0x%04X), SSDID(0x%04X)\n", ioc->name, dell_branding,
1707 ioc->pdev->vendor, ioc->pdev->device, ioc->pdev->subsystem_vendor,
1708 ioc->pdev->subsystem_device);
1709 }
1710
1711 /**
1712 * _base_display_ioc_capabilities - Disply IOC's capabilities.
1713 * @ioc: per adapter object
1714 *
1715 * Return nothing.
1716 */
1717 static void
1718 _base_display_ioc_capabilities(struct MPT2SAS_ADAPTER *ioc)
1719 {
1720 int i = 0;
1721 char desc[16];
1722 u8 revision;
1723 u32 iounit_pg1_flags;
1724
1725 pci_read_config_byte(ioc->pdev, PCI_CLASS_REVISION, &revision);
1726 strncpy(desc, ioc->manu_pg0.ChipName, 16);
1727 printk(MPT2SAS_INFO_FMT "%s: FWVersion(%02d.%02d.%02d.%02d), "
1728 "ChipRevision(0x%02x), BiosVersion(%02d.%02d.%02d.%02d)\n",
1729 ioc->name, desc,
1730 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
1731 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
1732 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
1733 ioc->facts.FWVersion.Word & 0x000000FF,
1734 revision,
1735 (ioc->bios_pg3.BiosVersion & 0xFF000000) >> 24,
1736 (ioc->bios_pg3.BiosVersion & 0x00FF0000) >> 16,
1737 (ioc->bios_pg3.BiosVersion & 0x0000FF00) >> 8,
1738 ioc->bios_pg3.BiosVersion & 0x000000FF);
1739
1740 _base_display_dell_branding(ioc);
1741
1742 printk(MPT2SAS_INFO_FMT "Protocol=(", ioc->name);
1743
1744 if (ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR) {
1745 printk("Initiator");
1746 i++;
1747 }
1748
1749 if (ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_TARGET) {
1750 printk("%sTarget", i ? "," : "");
1751 i++;
1752 }
1753
1754 i = 0;
1755 printk("), ");
1756 printk("Capabilities=(");
1757
1758 if (ioc->facts.IOCCapabilities &
1759 MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID) {
1760 printk("Raid");
1761 i++;
1762 }
1763
1764 if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR) {
1765 printk("%sTLR", i ? "," : "");
1766 i++;
1767 }
1768
1769 if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_MULTICAST) {
1770 printk("%sMulticast", i ? "," : "");
1771 i++;
1772 }
1773
1774 if (ioc->facts.IOCCapabilities &
1775 MPI2_IOCFACTS_CAPABILITY_BIDIRECTIONAL_TARGET) {
1776 printk("%sBIDI Target", i ? "," : "");
1777 i++;
1778 }
1779
1780 if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_EEDP) {
1781 printk("%sEEDP", i ? "," : "");
1782 i++;
1783 }
1784
1785 if (ioc->facts.IOCCapabilities &
1786 MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER) {
1787 printk("%sSnapshot Buffer", i ? "," : "");
1788 i++;
1789 }
1790
1791 if (ioc->facts.IOCCapabilities &
1792 MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER) {
1793 printk("%sDiag Trace Buffer", i ? "," : "");
1794 i++;
1795 }
1796
1797 if (ioc->facts.IOCCapabilities &
1798 MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER) {
1799 printk(KERN_INFO "%sDiag Extended Buffer", i ? "," : "");
1800 i++;
1801 }
1802
1803 if (ioc->facts.IOCCapabilities &
1804 MPI2_IOCFACTS_CAPABILITY_TASK_SET_FULL_HANDLING) {
1805 printk("%sTask Set Full", i ? "," : "");
1806 i++;
1807 }
1808
1809 iounit_pg1_flags = le32_to_cpu(ioc->iounit_pg1.Flags);
1810 if (!(iounit_pg1_flags & MPI2_IOUNITPAGE1_NATIVE_COMMAND_Q_DISABLE)) {
1811 printk("%sNCQ", i ? "," : "");
1812 i++;
1813 }
1814
1815 printk(")\n");
1816 }
1817
1818 /**
1819 * _base_static_config_pages - static start of day config pages
1820 * @ioc: per adapter object
1821 *
1822 * Return nothing.
1823 */
1824 static void
1825 _base_static_config_pages(struct MPT2SAS_ADAPTER *ioc)
1826 {
1827 Mpi2ConfigReply_t mpi_reply;
1828 u32 iounit_pg1_flags;
1829
1830 mpt2sas_config_get_manufacturing_pg0(ioc, &mpi_reply, &ioc->manu_pg0);
1831 if (ioc->ir_firmware)
1832 mpt2sas_config_get_manufacturing_pg10(ioc, &mpi_reply,
1833 &ioc->manu_pg10);
1834 mpt2sas_config_get_bios_pg2(ioc, &mpi_reply, &ioc->bios_pg2);
1835 mpt2sas_config_get_bios_pg3(ioc, &mpi_reply, &ioc->bios_pg3);
1836 mpt2sas_config_get_ioc_pg8(ioc, &mpi_reply, &ioc->ioc_pg8);
1837 mpt2sas_config_get_iounit_pg0(ioc, &mpi_reply, &ioc->iounit_pg0);
1838 mpt2sas_config_get_iounit_pg1(ioc, &mpi_reply, &ioc->iounit_pg1);
1839 _base_display_ioc_capabilities(ioc);
1840
1841 /*
1842 * Enable task_set_full handling in iounit_pg1 when the
1843 * facts capabilities indicate that its supported.
1844 */
1845 iounit_pg1_flags = le32_to_cpu(ioc->iounit_pg1.Flags);
1846 if ((ioc->facts.IOCCapabilities &
1847 MPI2_IOCFACTS_CAPABILITY_TASK_SET_FULL_HANDLING))
1848 iounit_pg1_flags &=
1849 ~MPI2_IOUNITPAGE1_DISABLE_TASK_SET_FULL_HANDLING;
1850 else
1851 iounit_pg1_flags |=
1852 MPI2_IOUNITPAGE1_DISABLE_TASK_SET_FULL_HANDLING;
1853 ioc->iounit_pg1.Flags = cpu_to_le32(iounit_pg1_flags);
1854 mpt2sas_config_set_iounit_pg1(ioc, &mpi_reply, &ioc->iounit_pg1);
1855 }
1856
1857 /**
1858 * _base_release_memory_pools - release memory
1859 * @ioc: per adapter object
1860 *
1861 * Free memory allocated from _base_allocate_memory_pools.
1862 *
1863 * Return nothing.
1864 */
1865 static void
1866 _base_release_memory_pools(struct MPT2SAS_ADAPTER *ioc)
1867 {
1868 dexitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
1869 __func__));
1870
1871 if (ioc->request) {
1872 pci_free_consistent(ioc->pdev, ioc->request_dma_sz,
1873 ioc->request, ioc->request_dma);
1874 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "request_pool(0x%p)"
1875 ": free\n", ioc->name, ioc->request));
1876 ioc->request = NULL;
1877 }
1878
1879 if (ioc->sense) {
1880 pci_pool_free(ioc->sense_dma_pool, ioc->sense, ioc->sense_dma);
1881 if (ioc->sense_dma_pool)
1882 pci_pool_destroy(ioc->sense_dma_pool);
1883 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "sense_pool(0x%p)"
1884 ": free\n", ioc->name, ioc->sense));
1885 ioc->sense = NULL;
1886 }
1887
1888 if (ioc->reply) {
1889 pci_pool_free(ioc->reply_dma_pool, ioc->reply, ioc->reply_dma);
1890 if (ioc->reply_dma_pool)
1891 pci_pool_destroy(ioc->reply_dma_pool);
1892 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_pool(0x%p)"
1893 ": free\n", ioc->name, ioc->reply));
1894 ioc->reply = NULL;
1895 }
1896
1897 if (ioc->reply_free) {
1898 pci_pool_free(ioc->reply_free_dma_pool, ioc->reply_free,
1899 ioc->reply_free_dma);
1900 if (ioc->reply_free_dma_pool)
1901 pci_pool_destroy(ioc->reply_free_dma_pool);
1902 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_free_pool"
1903 "(0x%p): free\n", ioc->name, ioc->reply_free));
1904 ioc->reply_free = NULL;
1905 }
1906
1907 if (ioc->reply_post_free) {
1908 pci_pool_free(ioc->reply_post_free_dma_pool,
1909 ioc->reply_post_free, ioc->reply_post_free_dma);
1910 if (ioc->reply_post_free_dma_pool)
1911 pci_pool_destroy(ioc->reply_post_free_dma_pool);
1912 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT
1913 "reply_post_free_pool(0x%p): free\n", ioc->name,
1914 ioc->reply_post_free));
1915 ioc->reply_post_free = NULL;
1916 }
1917
1918 if (ioc->config_page) {
1919 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT
1920 "config_page(0x%p): free\n", ioc->name,
1921 ioc->config_page));
1922 pci_free_consistent(ioc->pdev, ioc->config_page_sz,
1923 ioc->config_page, ioc->config_page_dma);
1924 }
1925
1926 if (ioc->scsi_lookup) {
1927 free_pages((ulong)ioc->scsi_lookup, ioc->scsi_lookup_pages);
1928 ioc->scsi_lookup = NULL;
1929 }
1930 kfree(ioc->hpr_lookup);
1931 kfree(ioc->internal_lookup);
1932 }
1933
1934
1935 /**
1936 * _base_allocate_memory_pools - allocate start of day memory pools
1937 * @ioc: per adapter object
1938 * @sleep_flag: CAN_SLEEP or NO_SLEEP
1939 *
1940 * Returns 0 success, anything else error
1941 */
1942 static int
1943 _base_allocate_memory_pools(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
1944 {
1945 Mpi2IOCFactsReply_t *facts;
1946 u32 queue_size, queue_diff;
1947 u16 max_sge_elements;
1948 u16 num_of_reply_frames;
1949 u16 chains_needed_per_io;
1950 u32 sz, total_sz;
1951 u32 retry_sz;
1952 u16 max_request_credit;
1953
1954 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
1955 __func__));
1956
1957 retry_sz = 0;
1958 facts = &ioc->facts;
1959
1960 /* command line tunables for max sgl entries */
1961 if (max_sgl_entries != -1) {
1962 ioc->shost->sg_tablesize = (max_sgl_entries <
1963 MPT2SAS_SG_DEPTH) ? max_sgl_entries :
1964 MPT2SAS_SG_DEPTH;
1965 } else {
1966 ioc->shost->sg_tablesize = MPT2SAS_SG_DEPTH;
1967 }
1968
1969 /* command line tunables for max controller queue depth */
1970 if (max_queue_depth != -1) {
1971 max_request_credit = (max_queue_depth < facts->RequestCredit)
1972 ? max_queue_depth : facts->RequestCredit;
1973 } else {
1974 max_request_credit = (facts->RequestCredit >
1975 MPT2SAS_MAX_REQUEST_QUEUE) ? MPT2SAS_MAX_REQUEST_QUEUE :
1976 facts->RequestCredit;
1977 }
1978
1979 ioc->hba_queue_depth = max_request_credit;
1980 ioc->hi_priority_depth = facts->HighPriorityCredit;
1981 ioc->internal_depth = ioc->hi_priority_depth + 5;
1982
1983 /* request frame size */
1984 ioc->request_sz = facts->IOCRequestFrameSize * 4;
1985
1986 /* reply frame size */
1987 ioc->reply_sz = facts->ReplyFrameSize * 4;
1988
1989 retry_allocation:
1990 total_sz = 0;
1991 /* calculate number of sg elements left over in the 1st frame */
1992 max_sge_elements = ioc->request_sz - ((sizeof(Mpi2SCSIIORequest_t) -
1993 sizeof(Mpi2SGEIOUnion_t)) + ioc->sge_size);
1994 ioc->max_sges_in_main_message = max_sge_elements/ioc->sge_size;
1995
1996 /* now do the same for a chain buffer */
1997 max_sge_elements = ioc->request_sz - ioc->sge_size;
1998 ioc->max_sges_in_chain_message = max_sge_elements/ioc->sge_size;
1999
2000 ioc->chain_offset_value_for_main_message =
2001 ((sizeof(Mpi2SCSIIORequest_t) - sizeof(Mpi2SGEIOUnion_t)) +
2002 (ioc->max_sges_in_chain_message * ioc->sge_size)) / 4;
2003
2004 /*
2005 * MPT2SAS_SG_DEPTH = CONFIG_FUSION_MAX_SGE
2006 */
2007 chains_needed_per_io = ((ioc->shost->sg_tablesize -
2008 ioc->max_sges_in_main_message)/ioc->max_sges_in_chain_message)
2009 + 1;
2010 if (chains_needed_per_io > facts->MaxChainDepth) {
2011 chains_needed_per_io = facts->MaxChainDepth;
2012 ioc->shost->sg_tablesize = min_t(u16,
2013 ioc->max_sges_in_main_message + (ioc->max_sges_in_chain_message
2014 * chains_needed_per_io), ioc->shost->sg_tablesize);
2015 }
2016 ioc->chains_needed_per_io = chains_needed_per_io;
2017
2018 /* reply free queue sizing - taking into account for events */
2019 num_of_reply_frames = ioc->hba_queue_depth + 32;
2020
2021 /* number of replies frames can't be a multiple of 16 */
2022 /* decrease number of reply frames by 1 */
2023 if (!(num_of_reply_frames % 16))
2024 num_of_reply_frames--;
2025
2026 /* calculate number of reply free queue entries
2027 * (must be multiple of 16)
2028 */
2029
2030 /* (we know reply_free_queue_depth is not a multiple of 16) */
2031 queue_size = num_of_reply_frames;
2032 queue_size += 16 - (queue_size % 16);
2033 ioc->reply_free_queue_depth = queue_size;
2034
2035 /* reply descriptor post queue sizing */
2036 /* this size should be the number of request frames + number of reply
2037 * frames
2038 */
2039
2040 queue_size = ioc->hba_queue_depth + num_of_reply_frames + 1;
2041 /* round up to 16 byte boundary */
2042 if (queue_size % 16)
2043 queue_size += 16 - (queue_size % 16);
2044
2045 /* check against IOC maximum reply post queue depth */
2046 if (queue_size > facts->MaxReplyDescriptorPostQueueDepth) {
2047 queue_diff = queue_size -
2048 facts->MaxReplyDescriptorPostQueueDepth;
2049
2050 /* round queue_diff up to multiple of 16 */
2051 if (queue_diff % 16)
2052 queue_diff += 16 - (queue_diff % 16);
2053
2054 /* adjust hba_queue_depth, reply_free_queue_depth,
2055 * and queue_size
2056 */
2057 ioc->hba_queue_depth -= queue_diff;
2058 ioc->reply_free_queue_depth -= queue_diff;
2059 queue_size -= queue_diff;
2060 }
2061 ioc->reply_post_queue_depth = queue_size;
2062
2063 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scatter gather: "
2064 "sge_in_main_msg(%d), sge_per_chain(%d), sge_per_io(%d), "
2065 "chains_per_io(%d)\n", ioc->name, ioc->max_sges_in_main_message,
2066 ioc->max_sges_in_chain_message, ioc->shost->sg_tablesize,
2067 ioc->chains_needed_per_io));
2068
2069 ioc->scsiio_depth = ioc->hba_queue_depth -
2070 ioc->hi_priority_depth - ioc->internal_depth;
2071
2072 /* set the scsi host can_queue depth
2073 * with some internal commands that could be outstanding
2074 */
2075 ioc->shost->can_queue = ioc->scsiio_depth - (2);
2076 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scsi host: "
2077 "can_queue depth (%d)\n", ioc->name, ioc->shost->can_queue));
2078
2079 /* contiguous pool for request and chains, 16 byte align, one extra "
2080 * "frame for smid=0
2081 */
2082 ioc->chain_depth = ioc->chains_needed_per_io * ioc->scsiio_depth;
2083 sz = ((ioc->scsiio_depth + 1 + ioc->chain_depth) * ioc->request_sz);
2084
2085 /* hi-priority queue */
2086 sz += (ioc->hi_priority_depth * ioc->request_sz);
2087
2088 /* internal queue */
2089 sz += (ioc->internal_depth * ioc->request_sz);
2090
2091 ioc->request_dma_sz = sz;
2092 ioc->request = pci_alloc_consistent(ioc->pdev, sz, &ioc->request_dma);
2093 if (!ioc->request) {
2094 printk(MPT2SAS_ERR_FMT "request pool: pci_alloc_consistent "
2095 "failed: hba_depth(%d), chains_per_io(%d), frame_sz(%d), "
2096 "total(%d kB)\n", ioc->name, ioc->hba_queue_depth,
2097 ioc->chains_needed_per_io, ioc->request_sz, sz/1024);
2098 if (ioc->scsiio_depth < MPT2SAS_SAS_QUEUE_DEPTH)
2099 goto out;
2100 retry_sz += 64;
2101 ioc->hba_queue_depth = max_request_credit - retry_sz;
2102 goto retry_allocation;
2103 }
2104
2105 if (retry_sz)
2106 printk(MPT2SAS_ERR_FMT "request pool: pci_alloc_consistent "
2107 "succeed: hba_depth(%d), chains_per_io(%d), frame_sz(%d), "
2108 "total(%d kb)\n", ioc->name, ioc->hba_queue_depth,
2109 ioc->chains_needed_per_io, ioc->request_sz, sz/1024);
2110
2111
2112 /* hi-priority queue */
2113 ioc->hi_priority = ioc->request + ((ioc->scsiio_depth + 1) *
2114 ioc->request_sz);
2115 ioc->hi_priority_dma = ioc->request_dma + ((ioc->scsiio_depth + 1) *
2116 ioc->request_sz);
2117
2118 /* internal queue */
2119 ioc->internal = ioc->hi_priority + (ioc->hi_priority_depth *
2120 ioc->request_sz);
2121 ioc->internal_dma = ioc->hi_priority_dma + (ioc->hi_priority_depth *
2122 ioc->request_sz);
2123
2124 ioc->chain = ioc->internal + (ioc->internal_depth *
2125 ioc->request_sz);
2126 ioc->chain_dma = ioc->internal_dma + (ioc->internal_depth *
2127 ioc->request_sz);
2128
2129 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "request pool(0x%p): "
2130 "depth(%d), frame_size(%d), pool_size(%d kB)\n", ioc->name,
2131 ioc->request, ioc->hba_queue_depth, ioc->request_sz,
2132 (ioc->hba_queue_depth * ioc->request_sz)/1024));
2133 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "chain pool(0x%p): depth"
2134 "(%d), frame_size(%d), pool_size(%d kB)\n", ioc->name, ioc->chain,
2135 ioc->chain_depth, ioc->request_sz, ((ioc->chain_depth *
2136 ioc->request_sz))/1024));
2137 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "request pool: dma(0x%llx)\n",
2138 ioc->name, (unsigned long long) ioc->request_dma));
2139 total_sz += sz;
2140
2141 sz = ioc->scsiio_depth * sizeof(struct request_tracker);
2142 ioc->scsi_lookup_pages = get_order(sz);
2143 ioc->scsi_lookup = (struct request_tracker *)__get_free_pages(
2144 GFP_KERNEL, ioc->scsi_lookup_pages);
2145 if (!ioc->scsi_lookup) {
2146 printk(MPT2SAS_ERR_FMT "scsi_lookup: get_free_pages failed, "
2147 "sz(%d)\n", ioc->name, (int)sz);
2148 goto out;
2149 }
2150
2151 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scsiio(0x%p): "
2152 "depth(%d)\n", ioc->name, ioc->request,
2153 ioc->scsiio_depth));
2154
2155 /* initialize hi-priority queue smid's */
2156 ioc->hpr_lookup = kcalloc(ioc->hi_priority_depth,
2157 sizeof(struct request_tracker), GFP_KERNEL);
2158 if (!ioc->hpr_lookup) {
2159 printk(MPT2SAS_ERR_FMT "hpr_lookup: kcalloc failed\n",
2160 ioc->name);
2161 goto out;
2162 }
2163 ioc->hi_priority_smid = ioc->scsiio_depth + 1;
2164 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "hi_priority(0x%p): "
2165 "depth(%d), start smid(%d)\n", ioc->name, ioc->hi_priority,
2166 ioc->hi_priority_depth, ioc->hi_priority_smid));
2167
2168 /* initialize internal queue smid's */
2169 ioc->internal_lookup = kcalloc(ioc->internal_depth,
2170 sizeof(struct request_tracker), GFP_KERNEL);
2171 if (!ioc->internal_lookup) {
2172 printk(MPT2SAS_ERR_FMT "internal_lookup: kcalloc failed\n",
2173 ioc->name);
2174 goto out;
2175 }
2176 ioc->internal_smid = ioc->hi_priority_smid + ioc->hi_priority_depth;
2177 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "internal(0x%p): "
2178 "depth(%d), start smid(%d)\n", ioc->name, ioc->internal,
2179 ioc->internal_depth, ioc->internal_smid));
2180
2181 /* sense buffers, 4 byte align */
2182 sz = ioc->scsiio_depth * SCSI_SENSE_BUFFERSIZE;
2183 ioc->sense_dma_pool = pci_pool_create("sense pool", ioc->pdev, sz, 4,
2184 0);
2185 if (!ioc->sense_dma_pool) {
2186 printk(MPT2SAS_ERR_FMT "sense pool: pci_pool_create failed\n",
2187 ioc->name);
2188 goto out;
2189 }
2190 ioc->sense = pci_pool_alloc(ioc->sense_dma_pool , GFP_KERNEL,
2191 &ioc->sense_dma);
2192 if (!ioc->sense) {
2193 printk(MPT2SAS_ERR_FMT "sense pool: pci_pool_alloc failed\n",
2194 ioc->name);
2195 goto out;
2196 }
2197 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
2198 "sense pool(0x%p): depth(%d), element_size(%d), pool_size"
2199 "(%d kB)\n", ioc->name, ioc->sense, ioc->scsiio_depth,
2200 SCSI_SENSE_BUFFERSIZE, sz/1024));
2201 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "sense_dma(0x%llx)\n",
2202 ioc->name, (unsigned long long)ioc->sense_dma));
2203 total_sz += sz;
2204
2205 /* reply pool, 4 byte align */
2206 sz = ioc->reply_free_queue_depth * ioc->reply_sz;
2207 ioc->reply_dma_pool = pci_pool_create("reply pool", ioc->pdev, sz, 4,
2208 0);
2209 if (!ioc->reply_dma_pool) {
2210 printk(MPT2SAS_ERR_FMT "reply pool: pci_pool_create failed\n",
2211 ioc->name);
2212 goto out;
2213 }
2214 ioc->reply = pci_pool_alloc(ioc->reply_dma_pool , GFP_KERNEL,
2215 &ioc->reply_dma);
2216 if (!ioc->reply) {
2217 printk(MPT2SAS_ERR_FMT "reply pool: pci_pool_alloc failed\n",
2218 ioc->name);
2219 goto out;
2220 }
2221 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply pool(0x%p): depth"
2222 "(%d), frame_size(%d), pool_size(%d kB)\n", ioc->name, ioc->reply,
2223 ioc->reply_free_queue_depth, ioc->reply_sz, sz/1024));
2224 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_dma(0x%llx)\n",
2225 ioc->name, (unsigned long long)ioc->reply_dma));
2226 total_sz += sz;
2227
2228 /* reply free queue, 16 byte align */
2229 sz = ioc->reply_free_queue_depth * 4;
2230 ioc->reply_free_dma_pool = pci_pool_create("reply_free pool",
2231 ioc->pdev, sz, 16, 0);
2232 if (!ioc->reply_free_dma_pool) {
2233 printk(MPT2SAS_ERR_FMT "reply_free pool: pci_pool_create "
2234 "failed\n", ioc->name);
2235 goto out;
2236 }
2237 ioc->reply_free = pci_pool_alloc(ioc->reply_free_dma_pool , GFP_KERNEL,
2238 &ioc->reply_free_dma);
2239 if (!ioc->reply_free) {
2240 printk(MPT2SAS_ERR_FMT "reply_free pool: pci_pool_alloc "
2241 "failed\n", ioc->name);
2242 goto out;
2243 }
2244 memset(ioc->reply_free, 0, sz);
2245 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_free pool(0x%p): "
2246 "depth(%d), element_size(%d), pool_size(%d kB)\n", ioc->name,
2247 ioc->reply_free, ioc->reply_free_queue_depth, 4, sz/1024));
2248 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_free_dma"
2249 "(0x%llx)\n", ioc->name, (unsigned long long)ioc->reply_free_dma));
2250 total_sz += sz;
2251
2252 /* reply post queue, 16 byte align */
2253 sz = ioc->reply_post_queue_depth * sizeof(Mpi2DefaultReplyDescriptor_t);
2254 ioc->reply_post_free_dma_pool = pci_pool_create("reply_post_free pool",
2255 ioc->pdev, sz, 16, 0);
2256 if (!ioc->reply_post_free_dma_pool) {
2257 printk(MPT2SAS_ERR_FMT "reply_post_free pool: pci_pool_create "
2258 "failed\n", ioc->name);
2259 goto out;
2260 }
2261 ioc->reply_post_free = pci_pool_alloc(ioc->reply_post_free_dma_pool ,
2262 GFP_KERNEL, &ioc->reply_post_free_dma);
2263 if (!ioc->reply_post_free) {
2264 printk(MPT2SAS_ERR_FMT "reply_post_free pool: pci_pool_alloc "
2265 "failed\n", ioc->name);
2266 goto out;
2267 }
2268 memset(ioc->reply_post_free, 0, sz);
2269 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply post free pool"
2270 "(0x%p): depth(%d), element_size(%d), pool_size(%d kB)\n",
2271 ioc->name, ioc->reply_post_free, ioc->reply_post_queue_depth, 8,
2272 sz/1024));
2273 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_post_free_dma = "
2274 "(0x%llx)\n", ioc->name, (unsigned long long)
2275 ioc->reply_post_free_dma));
2276 total_sz += sz;
2277
2278 ioc->config_page_sz = 512;
2279 ioc->config_page = pci_alloc_consistent(ioc->pdev,
2280 ioc->config_page_sz, &ioc->config_page_dma);
2281 if (!ioc->config_page) {
2282 printk(MPT2SAS_ERR_FMT "config page: pci_pool_alloc "
2283 "failed\n", ioc->name);
2284 goto out;
2285 }
2286 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "config page(0x%p): size"
2287 "(%d)\n", ioc->name, ioc->config_page, ioc->config_page_sz));
2288 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "config_page_dma"
2289 "(0x%llx)\n", ioc->name, (unsigned long long)ioc->config_page_dma));
2290 total_sz += ioc->config_page_sz;
2291
2292 printk(MPT2SAS_INFO_FMT "Allocated physical memory: size(%d kB)\n",
2293 ioc->name, total_sz/1024);
2294 printk(MPT2SAS_INFO_FMT "Current Controller Queue Depth(%d), "
2295 "Max Controller Queue Depth(%d)\n",
2296 ioc->name, ioc->shost->can_queue, facts->RequestCredit);
2297 printk(MPT2SAS_INFO_FMT "Scatter Gather Elements per IO(%d)\n",
2298 ioc->name, ioc->shost->sg_tablesize);
2299 return 0;
2300
2301 out:
2302 _base_release_memory_pools(ioc);
2303 return -ENOMEM;
2304 }
2305
2306
2307 /**
2308 * mpt2sas_base_get_iocstate - Get the current state of a MPT adapter.
2309 * @ioc: Pointer to MPT_ADAPTER structure
2310 * @cooked: Request raw or cooked IOC state
2311 *
2312 * Returns all IOC Doorbell register bits if cooked==0, else just the
2313 * Doorbell bits in MPI_IOC_STATE_MASK.
2314 */
2315 u32
2316 mpt2sas_base_get_iocstate(struct MPT2SAS_ADAPTER *ioc, int cooked)
2317 {
2318 u32 s, sc;
2319
2320 s = readl(&ioc->chip->Doorbell);
2321 sc = s & MPI2_IOC_STATE_MASK;
2322 return cooked ? sc : s;
2323 }
2324
2325 /**
2326 * _base_wait_on_iocstate - waiting on a particular ioc state
2327 * @ioc_state: controller state { READY, OPERATIONAL, or RESET }
2328 * @timeout: timeout in second
2329 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2330 *
2331 * Returns 0 for success, non-zero for failure.
2332 */
2333 static int
2334 _base_wait_on_iocstate(struct MPT2SAS_ADAPTER *ioc, u32 ioc_state, int timeout,
2335 int sleep_flag)
2336 {
2337 u32 count, cntdn;
2338 u32 current_state;
2339
2340 count = 0;
2341 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
2342 do {
2343 current_state = mpt2sas_base_get_iocstate(ioc, 1);
2344 if (current_state == ioc_state)
2345 return 0;
2346 if (count && current_state == MPI2_IOC_STATE_FAULT)
2347 break;
2348 if (sleep_flag == CAN_SLEEP)
2349 msleep(1);
2350 else
2351 udelay(500);
2352 count++;
2353 } while (--cntdn);
2354
2355 return current_state;
2356 }
2357
2358 /**
2359 * _base_wait_for_doorbell_int - waiting for controller interrupt(generated by
2360 * a write to the doorbell)
2361 * @ioc: per adapter object
2362 * @timeout: timeout in second
2363 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2364 *
2365 * Returns 0 for success, non-zero for failure.
2366 *
2367 * Notes: MPI2_HIS_IOC2SYS_DB_STATUS - set to one when IOC writes to doorbell.
2368 */
2369 static int
2370 _base_wait_for_doorbell_int(struct MPT2SAS_ADAPTER *ioc, int timeout,
2371 int sleep_flag)
2372 {
2373 u32 cntdn, count;
2374 u32 int_status;
2375
2376 count = 0;
2377 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
2378 do {
2379 int_status = readl(&ioc->chip->HostInterruptStatus);
2380 if (int_status & MPI2_HIS_IOC2SYS_DB_STATUS) {
2381 dhsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
2382 "successfull count(%d), timeout(%d)\n", ioc->name,
2383 __func__, count, timeout));
2384 return 0;
2385 }
2386 if (sleep_flag == CAN_SLEEP)
2387 msleep(1);
2388 else
2389 udelay(500);
2390 count++;
2391 } while (--cntdn);
2392
2393 printk(MPT2SAS_ERR_FMT "%s: failed due to timeout count(%d), "
2394 "int_status(%x)!\n", ioc->name, __func__, count, int_status);
2395 return -EFAULT;
2396 }
2397
2398 /**
2399 * _base_wait_for_doorbell_ack - waiting for controller to read the doorbell.
2400 * @ioc: per adapter object
2401 * @timeout: timeout in second
2402 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2403 *
2404 * Returns 0 for success, non-zero for failure.
2405 *
2406 * Notes: MPI2_HIS_SYS2IOC_DB_STATUS - set to one when host writes to
2407 * doorbell.
2408 */
2409 static int
2410 _base_wait_for_doorbell_ack(struct MPT2SAS_ADAPTER *ioc, int timeout,
2411 int sleep_flag)
2412 {
2413 u32 cntdn, count;
2414 u32 int_status;
2415 u32 doorbell;
2416
2417 count = 0;
2418 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
2419 do {
2420 int_status = readl(&ioc->chip->HostInterruptStatus);
2421 if (!(int_status & MPI2_HIS_SYS2IOC_DB_STATUS)) {
2422 dhsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
2423 "successfull count(%d), timeout(%d)\n", ioc->name,
2424 __func__, count, timeout));
2425 return 0;
2426 } else if (int_status & MPI2_HIS_IOC2SYS_DB_STATUS) {
2427 doorbell = readl(&ioc->chip->Doorbell);
2428 if ((doorbell & MPI2_IOC_STATE_MASK) ==
2429 MPI2_IOC_STATE_FAULT) {
2430 mpt2sas_base_fault_info(ioc , doorbell);
2431 return -EFAULT;
2432 }
2433 } else if (int_status == 0xFFFFFFFF)
2434 goto out;
2435
2436 if (sleep_flag == CAN_SLEEP)
2437 msleep(1);
2438 else
2439 udelay(500);
2440 count++;
2441 } while (--cntdn);
2442
2443 out:
2444 printk(MPT2SAS_ERR_FMT "%s: failed due to timeout count(%d), "
2445 "int_status(%x)!\n", ioc->name, __func__, count, int_status);
2446 return -EFAULT;
2447 }
2448
2449 /**
2450 * _base_wait_for_doorbell_not_used - waiting for doorbell to not be in use
2451 * @ioc: per adapter object
2452 * @timeout: timeout in second
2453 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2454 *
2455 * Returns 0 for success, non-zero for failure.
2456 *
2457 */
2458 static int
2459 _base_wait_for_doorbell_not_used(struct MPT2SAS_ADAPTER *ioc, int timeout,
2460 int sleep_flag)
2461 {
2462 u32 cntdn, count;
2463 u32 doorbell_reg;
2464
2465 count = 0;
2466 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
2467 do {
2468 doorbell_reg = readl(&ioc->chip->Doorbell);
2469 if (!(doorbell_reg & MPI2_DOORBELL_USED)) {
2470 dhsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
2471 "successfull count(%d), timeout(%d)\n", ioc->name,
2472 __func__, count, timeout));
2473 return 0;
2474 }
2475 if (sleep_flag == CAN_SLEEP)
2476 msleep(1);
2477 else
2478 udelay(500);
2479 count++;
2480 } while (--cntdn);
2481
2482 printk(MPT2SAS_ERR_FMT "%s: failed due to timeout count(%d), "
2483 "doorbell_reg(%x)!\n", ioc->name, __func__, count, doorbell_reg);
2484 return -EFAULT;
2485 }
2486
2487 /**
2488 * _base_send_ioc_reset - send doorbell reset
2489 * @ioc: per adapter object
2490 * @reset_type: currently only supports: MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET
2491 * @timeout: timeout in second
2492 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2493 *
2494 * Returns 0 for success, non-zero for failure.
2495 */
2496 static int
2497 _base_send_ioc_reset(struct MPT2SAS_ADAPTER *ioc, u8 reset_type, int timeout,
2498 int sleep_flag)
2499 {
2500 u32 ioc_state;
2501 int r = 0;
2502
2503 if (reset_type != MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET) {
2504 printk(MPT2SAS_ERR_FMT "%s: unknown reset_type\n",
2505 ioc->name, __func__);
2506 return -EFAULT;
2507 }
2508
2509 if (!(ioc->facts.IOCCapabilities &
2510 MPI2_IOCFACTS_CAPABILITY_EVENT_REPLAY))
2511 return -EFAULT;
2512
2513 printk(MPT2SAS_INFO_FMT "sending message unit reset !!\n", ioc->name);
2514
2515 writel(reset_type << MPI2_DOORBELL_FUNCTION_SHIFT,
2516 &ioc->chip->Doorbell);
2517 if ((_base_wait_for_doorbell_ack(ioc, 15, sleep_flag))) {
2518 r = -EFAULT;
2519 goto out;
2520 }
2521 ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY,
2522 timeout, sleep_flag);
2523 if (ioc_state) {
2524 printk(MPT2SAS_ERR_FMT "%s: failed going to ready state "
2525 " (ioc_state=0x%x)\n", ioc->name, __func__, ioc_state);
2526 r = -EFAULT;
2527 goto out;
2528 }
2529 out:
2530 printk(MPT2SAS_INFO_FMT "message unit reset: %s\n",
2531 ioc->name, ((r == 0) ? "SUCCESS" : "FAILED"));
2532 return r;
2533 }
2534
2535 /**
2536 * _base_handshake_req_reply_wait - send request thru doorbell interface
2537 * @ioc: per adapter object
2538 * @request_bytes: request length
2539 * @request: pointer having request payload
2540 * @reply_bytes: reply length
2541 * @reply: pointer to reply payload
2542 * @timeout: timeout in second
2543 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2544 *
2545 * Returns 0 for success, non-zero for failure.
2546 */
2547 static int
2548 _base_handshake_req_reply_wait(struct MPT2SAS_ADAPTER *ioc, int request_bytes,
2549 u32 *request, int reply_bytes, u16 *reply, int timeout, int sleep_flag)
2550 {
2551 MPI2DefaultReply_t *default_reply = (MPI2DefaultReply_t *)reply;
2552 int i;
2553 u8 failed;
2554 u16 dummy;
2555 u32 *mfp;
2556
2557 /* make sure doorbell is not in use */
2558 if ((readl(&ioc->chip->Doorbell) & MPI2_DOORBELL_USED)) {
2559 printk(MPT2SAS_ERR_FMT "doorbell is in use "
2560 " (line=%d)\n", ioc->name, __LINE__);
2561 return -EFAULT;
2562 }
2563
2564 /* clear pending doorbell interrupts from previous state changes */
2565 if (readl(&ioc->chip->HostInterruptStatus) &
2566 MPI2_HIS_IOC2SYS_DB_STATUS)
2567 writel(0, &ioc->chip->HostInterruptStatus);
2568
2569 /* send message to ioc */
2570 writel(((MPI2_FUNCTION_HANDSHAKE<<MPI2_DOORBELL_FUNCTION_SHIFT) |
2571 ((request_bytes/4)<<MPI2_DOORBELL_ADD_DWORDS_SHIFT)),
2572 &ioc->chip->Doorbell);
2573
2574 if ((_base_wait_for_doorbell_int(ioc, 5, NO_SLEEP))) {
2575 printk(MPT2SAS_ERR_FMT "doorbell handshake "
2576 "int failed (line=%d)\n", ioc->name, __LINE__);
2577 return -EFAULT;
2578 }
2579 writel(0, &ioc->chip->HostInterruptStatus);
2580
2581 if ((_base_wait_for_doorbell_ack(ioc, 5, sleep_flag))) {
2582 printk(MPT2SAS_ERR_FMT "doorbell handshake "
2583 "ack failed (line=%d)\n", ioc->name, __LINE__);
2584 return -EFAULT;
2585 }
2586
2587 /* send message 32-bits at a time */
2588 for (i = 0, failed = 0; i < request_bytes/4 && !failed; i++) {
2589 writel(cpu_to_le32(request[i]), &ioc->chip->Doorbell);
2590 if ((_base_wait_for_doorbell_ack(ioc, 5, sleep_flag)))
2591 failed = 1;
2592 }
2593
2594 if (failed) {
2595 printk(MPT2SAS_ERR_FMT "doorbell handshake "
2596 "sending request failed (line=%d)\n", ioc->name, __LINE__);
2597 return -EFAULT;
2598 }
2599
2600 /* now wait for the reply */
2601 if ((_base_wait_for_doorbell_int(ioc, timeout, sleep_flag))) {
2602 printk(MPT2SAS_ERR_FMT "doorbell handshake "
2603 "int failed (line=%d)\n", ioc->name, __LINE__);
2604 return -EFAULT;
2605 }
2606
2607 /* read the first two 16-bits, it gives the total length of the reply */
2608 reply[0] = le16_to_cpu(readl(&ioc->chip->Doorbell)
2609 & MPI2_DOORBELL_DATA_MASK);
2610 writel(0, &ioc->chip->HostInterruptStatus);
2611 if ((_base_wait_for_doorbell_int(ioc, 5, sleep_flag))) {
2612 printk(MPT2SAS_ERR_FMT "doorbell handshake "
2613 "int failed (line=%d)\n", ioc->name, __LINE__);
2614 return -EFAULT;
2615 }
2616 reply[1] = le16_to_cpu(readl(&ioc->chip->Doorbell)
2617 & MPI2_DOORBELL_DATA_MASK);
2618 writel(0, &ioc->chip->HostInterruptStatus);
2619
2620 for (i = 2; i < default_reply->MsgLength * 2; i++) {
2621 if ((_base_wait_for_doorbell_int(ioc, 5, sleep_flag))) {
2622 printk(MPT2SAS_ERR_FMT "doorbell "
2623 "handshake int failed (line=%d)\n", ioc->name,
2624 __LINE__);
2625 return -EFAULT;
2626 }
2627 if (i >= reply_bytes/2) /* overflow case */
2628 dummy = readl(&ioc->chip->Doorbell);
2629 else
2630 reply[i] = le16_to_cpu(readl(&ioc->chip->Doorbell)
2631 & MPI2_DOORBELL_DATA_MASK);
2632 writel(0, &ioc->chip->HostInterruptStatus);
2633 }
2634
2635 _base_wait_for_doorbell_int(ioc, 5, sleep_flag);
2636 if (_base_wait_for_doorbell_not_used(ioc, 5, sleep_flag) != 0) {
2637 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "doorbell is in use "
2638 " (line=%d)\n", ioc->name, __LINE__));
2639 }
2640 writel(0, &ioc->chip->HostInterruptStatus);
2641
2642 if (ioc->logging_level & MPT_DEBUG_INIT) {
2643 mfp = (u32 *)reply;
2644 printk(KERN_DEBUG "\toffset:data\n");
2645 for (i = 0; i < reply_bytes/4; i++)
2646 printk(KERN_DEBUG "\t[0x%02x]:%08x\n", i*4,
2647 le32_to_cpu(mfp[i]));
2648 }
2649 return 0;
2650 }
2651
2652 /**
2653 * mpt2sas_base_sas_iounit_control - send sas iounit control to FW
2654 * @ioc: per adapter object
2655 * @mpi_reply: the reply payload from FW
2656 * @mpi_request: the request payload sent to FW
2657 *
2658 * The SAS IO Unit Control Request message allows the host to perform low-level
2659 * operations, such as resets on the PHYs of the IO Unit, also allows the host
2660 * to obtain the IOC assigned device handles for a device if it has other
2661 * identifying information about the device, in addition allows the host to
2662 * remove IOC resources associated with the device.
2663 *
2664 * Returns 0 for success, non-zero for failure.
2665 */
2666 int
2667 mpt2sas_base_sas_iounit_control(struct MPT2SAS_ADAPTER *ioc,
2668 Mpi2SasIoUnitControlReply_t *mpi_reply,
2669 Mpi2SasIoUnitControlRequest_t *mpi_request)
2670 {
2671 u16 smid;
2672 u32 ioc_state;
2673 unsigned long timeleft;
2674 u8 issue_reset;
2675 int rc;
2676 void *request;
2677 u16 wait_state_count;
2678
2679 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
2680 __func__));
2681
2682 mutex_lock(&ioc->base_cmds.mutex);
2683
2684 if (ioc->base_cmds.status != MPT2_CMD_NOT_USED) {
2685 printk(MPT2SAS_ERR_FMT "%s: base_cmd in use\n",
2686 ioc->name, __func__);
2687 rc = -EAGAIN;
2688 goto out;
2689 }
2690
2691 wait_state_count = 0;
2692 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
2693 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
2694 if (wait_state_count++ == 10) {
2695 printk(MPT2SAS_ERR_FMT
2696 "%s: failed due to ioc not operational\n",
2697 ioc->name, __func__);
2698 rc = -EFAULT;
2699 goto out;
2700 }
2701 ssleep(1);
2702 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
2703 printk(MPT2SAS_INFO_FMT "%s: waiting for "
2704 "operational state(count=%d)\n", ioc->name,
2705 __func__, wait_state_count);
2706 }
2707
2708 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx);
2709 if (!smid) {
2710 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
2711 ioc->name, __func__);
2712 rc = -EAGAIN;
2713 goto out;
2714 }
2715
2716 rc = 0;
2717 ioc->base_cmds.status = MPT2_CMD_PENDING;
2718 request = mpt2sas_base_get_msg_frame(ioc, smid);
2719 ioc->base_cmds.smid = smid;
2720 memcpy(request, mpi_request, sizeof(Mpi2SasIoUnitControlRequest_t));
2721 if (mpi_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET ||
2722 mpi_request->Operation == MPI2_SAS_OP_PHY_LINK_RESET)
2723 ioc->ioc_link_reset_in_progress = 1;
2724 mpt2sas_base_put_smid_default(ioc, smid);
2725 init_completion(&ioc->base_cmds.done);
2726 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done,
2727 msecs_to_jiffies(10000));
2728 if ((mpi_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET ||
2729 mpi_request->Operation == MPI2_SAS_OP_PHY_LINK_RESET) &&
2730 ioc->ioc_link_reset_in_progress)
2731 ioc->ioc_link_reset_in_progress = 0;
2732 if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) {
2733 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
2734 ioc->name, __func__);
2735 _debug_dump_mf(mpi_request,
2736 sizeof(Mpi2SasIoUnitControlRequest_t)/4);
2737 if (!(ioc->base_cmds.status & MPT2_CMD_RESET))
2738 issue_reset = 1;
2739 goto issue_host_reset;
2740 }
2741 if (ioc->base_cmds.status & MPT2_CMD_REPLY_VALID)
2742 memcpy(mpi_reply, ioc->base_cmds.reply,
2743 sizeof(Mpi2SasIoUnitControlReply_t));
2744 else
2745 memset(mpi_reply, 0, sizeof(Mpi2SasIoUnitControlReply_t));
2746 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
2747 goto out;
2748
2749 issue_host_reset:
2750 if (issue_reset)
2751 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2752 FORCE_BIG_HAMMER);
2753 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
2754 rc = -EFAULT;
2755 out:
2756 mutex_unlock(&ioc->base_cmds.mutex);
2757 return rc;
2758 }
2759
2760
2761 /**
2762 * mpt2sas_base_scsi_enclosure_processor - sending request to sep device
2763 * @ioc: per adapter object
2764 * @mpi_reply: the reply payload from FW
2765 * @mpi_request: the request payload sent to FW
2766 *
2767 * The SCSI Enclosure Processor request message causes the IOC to
2768 * communicate with SES devices to control LED status signals.
2769 *
2770 * Returns 0 for success, non-zero for failure.
2771 */
2772 int
2773 mpt2sas_base_scsi_enclosure_processor(struct MPT2SAS_ADAPTER *ioc,
2774 Mpi2SepReply_t *mpi_reply, Mpi2SepRequest_t *mpi_request)
2775 {
2776 u16 smid;
2777 u32 ioc_state;
2778 unsigned long timeleft;
2779 u8 issue_reset;
2780 int rc;
2781 void *request;
2782 u16 wait_state_count;
2783
2784 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
2785 __func__));
2786
2787 mutex_lock(&ioc->base_cmds.mutex);
2788
2789 if (ioc->base_cmds.status != MPT2_CMD_NOT_USED) {
2790 printk(MPT2SAS_ERR_FMT "%s: base_cmd in use\n",
2791 ioc->name, __func__);
2792 rc = -EAGAIN;
2793 goto out;
2794 }
2795
2796 wait_state_count = 0;
2797 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
2798 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
2799 if (wait_state_count++ == 10) {
2800 printk(MPT2SAS_ERR_FMT
2801 "%s: failed due to ioc not operational\n",
2802 ioc->name, __func__);
2803 rc = -EFAULT;
2804 goto out;
2805 }
2806 ssleep(1);
2807 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
2808 printk(MPT2SAS_INFO_FMT "%s: waiting for "
2809 "operational state(count=%d)\n", ioc->name,
2810 __func__, wait_state_count);
2811 }
2812
2813 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx);
2814 if (!smid) {
2815 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
2816 ioc->name, __func__);
2817 rc = -EAGAIN;
2818 goto out;
2819 }
2820
2821 rc = 0;
2822 ioc->base_cmds.status = MPT2_CMD_PENDING;
2823 request = mpt2sas_base_get_msg_frame(ioc, smid);
2824 ioc->base_cmds.smid = smid;
2825 memcpy(request, mpi_request, sizeof(Mpi2SepReply_t));
2826 mpt2sas_base_put_smid_default(ioc, smid);
2827 init_completion(&ioc->base_cmds.done);
2828 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done,
2829 msecs_to_jiffies(10000));
2830 if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) {
2831 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
2832 ioc->name, __func__);
2833 _debug_dump_mf(mpi_request,
2834 sizeof(Mpi2SepRequest_t)/4);
2835 if (!(ioc->base_cmds.status & MPT2_CMD_RESET))
2836 issue_reset = 1;
2837 goto issue_host_reset;
2838 }
2839 if (ioc->base_cmds.status & MPT2_CMD_REPLY_VALID)
2840 memcpy(mpi_reply, ioc->base_cmds.reply,
2841 sizeof(Mpi2SepReply_t));
2842 else
2843 memset(mpi_reply, 0, sizeof(Mpi2SepReply_t));
2844 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
2845 goto out;
2846
2847 issue_host_reset:
2848 if (issue_reset)
2849 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2850 FORCE_BIG_HAMMER);
2851 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
2852 rc = -EFAULT;
2853 out:
2854 mutex_unlock(&ioc->base_cmds.mutex);
2855 return rc;
2856 }
2857
2858 /**
2859 * _base_get_port_facts - obtain port facts reply and save in ioc
2860 * @ioc: per adapter object
2861 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2862 *
2863 * Returns 0 for success, non-zero for failure.
2864 */
2865 static int
2866 _base_get_port_facts(struct MPT2SAS_ADAPTER *ioc, int port, int sleep_flag)
2867 {
2868 Mpi2PortFactsRequest_t mpi_request;
2869 Mpi2PortFactsReply_t mpi_reply, *pfacts;
2870 int mpi_reply_sz, mpi_request_sz, r;
2871
2872 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
2873 __func__));
2874
2875 mpi_reply_sz = sizeof(Mpi2PortFactsReply_t);
2876 mpi_request_sz = sizeof(Mpi2PortFactsRequest_t);
2877 memset(&mpi_request, 0, mpi_request_sz);
2878 mpi_request.Function = MPI2_FUNCTION_PORT_FACTS;
2879 mpi_request.PortNumber = port;
2880 r = _base_handshake_req_reply_wait(ioc, mpi_request_sz,
2881 (u32 *)&mpi_request, mpi_reply_sz, (u16 *)&mpi_reply, 5, CAN_SLEEP);
2882
2883 if (r != 0) {
2884 printk(MPT2SAS_ERR_FMT "%s: handshake failed (r=%d)\n",
2885 ioc->name, __func__, r);
2886 return r;
2887 }
2888
2889 pfacts = &ioc->pfacts[port];
2890 memset(pfacts, 0, sizeof(Mpi2PortFactsReply_t));
2891 pfacts->PortNumber = mpi_reply.PortNumber;
2892 pfacts->VP_ID = mpi_reply.VP_ID;
2893 pfacts->VF_ID = mpi_reply.VF_ID;
2894 pfacts->MaxPostedCmdBuffers =
2895 le16_to_cpu(mpi_reply.MaxPostedCmdBuffers);
2896
2897 return 0;
2898 }
2899
2900 /**
2901 * _base_get_ioc_facts - obtain ioc facts reply and save in ioc
2902 * @ioc: per adapter object
2903 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2904 *
2905 * Returns 0 for success, non-zero for failure.
2906 */
2907 static int
2908 _base_get_ioc_facts(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
2909 {
2910 Mpi2IOCFactsRequest_t mpi_request;
2911 Mpi2IOCFactsReply_t mpi_reply, *facts;
2912 int mpi_reply_sz, mpi_request_sz, r;
2913
2914 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
2915 __func__));
2916
2917 mpi_reply_sz = sizeof(Mpi2IOCFactsReply_t);
2918 mpi_request_sz = sizeof(Mpi2IOCFactsRequest_t);
2919 memset(&mpi_request, 0, mpi_request_sz);
2920 mpi_request.Function = MPI2_FUNCTION_IOC_FACTS;
2921 r = _base_handshake_req_reply_wait(ioc, mpi_request_sz,
2922 (u32 *)&mpi_request, mpi_reply_sz, (u16 *)&mpi_reply, 5, CAN_SLEEP);
2923
2924 if (r != 0) {
2925 printk(MPT2SAS_ERR_FMT "%s: handshake failed (r=%d)\n",
2926 ioc->name, __func__, r);
2927 return r;
2928 }
2929
2930 facts = &ioc->facts;
2931 memset(facts, 0, sizeof(Mpi2IOCFactsReply_t));
2932 facts->MsgVersion = le16_to_cpu(mpi_reply.MsgVersion);
2933 facts->HeaderVersion = le16_to_cpu(mpi_reply.HeaderVersion);
2934 facts->VP_ID = mpi_reply.VP_ID;
2935 facts->VF_ID = mpi_reply.VF_ID;
2936 facts->IOCExceptions = le16_to_cpu(mpi_reply.IOCExceptions);
2937 facts->MaxChainDepth = mpi_reply.MaxChainDepth;
2938 facts->WhoInit = mpi_reply.WhoInit;
2939 facts->NumberOfPorts = mpi_reply.NumberOfPorts;
2940 facts->RequestCredit = le16_to_cpu(mpi_reply.RequestCredit);
2941 facts->MaxReplyDescriptorPostQueueDepth =
2942 le16_to_cpu(mpi_reply.MaxReplyDescriptorPostQueueDepth);
2943 facts->ProductID = le16_to_cpu(mpi_reply.ProductID);
2944 facts->IOCCapabilities = le32_to_cpu(mpi_reply.IOCCapabilities);
2945 if ((facts->IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID))
2946 ioc->ir_firmware = 1;
2947 facts->FWVersion.Word = le32_to_cpu(mpi_reply.FWVersion.Word);
2948 facts->IOCRequestFrameSize =
2949 le16_to_cpu(mpi_reply.IOCRequestFrameSize);
2950 facts->MaxInitiators = le16_to_cpu(mpi_reply.MaxInitiators);
2951 facts->MaxTargets = le16_to_cpu(mpi_reply.MaxTargets);
2952 ioc->shost->max_id = -1;
2953 facts->MaxSasExpanders = le16_to_cpu(mpi_reply.MaxSasExpanders);
2954 facts->MaxEnclosures = le16_to_cpu(mpi_reply.MaxEnclosures);
2955 facts->ProtocolFlags = le16_to_cpu(mpi_reply.ProtocolFlags);
2956 facts->HighPriorityCredit =
2957 le16_to_cpu(mpi_reply.HighPriorityCredit);
2958 facts->ReplyFrameSize = mpi_reply.ReplyFrameSize;
2959 facts->MaxDevHandle = le16_to_cpu(mpi_reply.MaxDevHandle);
2960
2961 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "hba queue depth(%d), "
2962 "max chains per io(%d)\n", ioc->name, facts->RequestCredit,
2963 facts->MaxChainDepth));
2964 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "request frame size(%d), "
2965 "reply frame size(%d)\n", ioc->name,
2966 facts->IOCRequestFrameSize * 4, facts->ReplyFrameSize * 4));
2967 return 0;
2968 }
2969
2970 /**
2971 * _base_send_ioc_init - send ioc_init to firmware
2972 * @ioc: per adapter object
2973 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2974 *
2975 * Returns 0 for success, non-zero for failure.
2976 */
2977 static int
2978 _base_send_ioc_init(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
2979 {
2980 Mpi2IOCInitRequest_t mpi_request;
2981 Mpi2IOCInitReply_t mpi_reply;
2982 int r;
2983 struct timeval current_time;
2984 u16 ioc_status;
2985
2986 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
2987 __func__));
2988
2989 memset(&mpi_request, 0, sizeof(Mpi2IOCInitRequest_t));
2990 mpi_request.Function = MPI2_FUNCTION_IOC_INIT;
2991 mpi_request.WhoInit = MPI2_WHOINIT_HOST_DRIVER;
2992 mpi_request.VF_ID = 0; /* TODO */
2993 mpi_request.VP_ID = 0;
2994 mpi_request.MsgVersion = cpu_to_le16(MPI2_VERSION);
2995 mpi_request.HeaderVersion = cpu_to_le16(MPI2_HEADER_VERSION);
2996
2997 /* In MPI Revision I (0xA), the SystemReplyFrameSize(offset 0x18) was
2998 * removed and made reserved. For those with older firmware will need
2999 * this fix. It was decided that the Reply and Request frame sizes are
3000 * the same.
3001 */
3002 if ((ioc->facts.HeaderVersion >> 8) < 0xA) {
3003 mpi_request.Reserved7 = cpu_to_le16(ioc->reply_sz);
3004 /* mpi_request.SystemReplyFrameSize =
3005 * cpu_to_le16(ioc->reply_sz);
3006 */
3007 }
3008
3009 mpi_request.SystemRequestFrameSize = cpu_to_le16(ioc->request_sz/4);
3010 mpi_request.ReplyDescriptorPostQueueDepth =
3011 cpu_to_le16(ioc->reply_post_queue_depth);
3012 mpi_request.ReplyFreeQueueDepth =
3013 cpu_to_le16(ioc->reply_free_queue_depth);
3014
3015 #if BITS_PER_LONG > 32
3016 mpi_request.SenseBufferAddressHigh =
3017 cpu_to_le32(ioc->sense_dma >> 32);
3018 mpi_request.SystemReplyAddressHigh =
3019 cpu_to_le32(ioc->reply_dma >> 32);
3020 mpi_request.SystemRequestFrameBaseAddress =
3021 cpu_to_le64(ioc->request_dma);
3022 mpi_request.ReplyFreeQueueAddress =
3023 cpu_to_le64(ioc->reply_free_dma);
3024 mpi_request.ReplyDescriptorPostQueueAddress =
3025 cpu_to_le64(ioc->reply_post_free_dma);
3026 #else
3027 mpi_request.SystemRequestFrameBaseAddress =
3028 cpu_to_le32(ioc->request_dma);
3029 mpi_request.ReplyFreeQueueAddress =
3030 cpu_to_le32(ioc->reply_free_dma);
3031 mpi_request.ReplyDescriptorPostQueueAddress =
3032 cpu_to_le32(ioc->reply_post_free_dma);
3033 #endif
3034
3035 /* This time stamp specifies number of milliseconds
3036 * since epoch ~ midnight January 1, 1970.
3037 */
3038 do_gettimeofday(&current_time);
3039 mpi_request.TimeStamp = cpu_to_le64((u64)current_time.tv_sec * 1000 +
3040 (current_time.tv_usec / 1000));
3041
3042 if (ioc->logging_level & MPT_DEBUG_INIT) {
3043 u32 *mfp;
3044 int i;
3045
3046 mfp = (u32 *)&mpi_request;
3047 printk(KERN_DEBUG "\toffset:data\n");
3048 for (i = 0; i < sizeof(Mpi2IOCInitRequest_t)/4; i++)
3049 printk(KERN_DEBUG "\t[0x%02x]:%08x\n", i*4,
3050 le32_to_cpu(mfp[i]));
3051 }
3052
3053 r = _base_handshake_req_reply_wait(ioc,
3054 sizeof(Mpi2IOCInitRequest_t), (u32 *)&mpi_request,
3055 sizeof(Mpi2IOCInitReply_t), (u16 *)&mpi_reply, 10,
3056 sleep_flag);
3057
3058 if (r != 0) {
3059 printk(MPT2SAS_ERR_FMT "%s: handshake failed (r=%d)\n",
3060 ioc->name, __func__, r);
3061 return r;
3062 }
3063
3064 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
3065 if (ioc_status != MPI2_IOCSTATUS_SUCCESS ||
3066 mpi_reply.IOCLogInfo) {
3067 printk(MPT2SAS_ERR_FMT "%s: failed\n", ioc->name, __func__);
3068 r = -EIO;
3069 }
3070
3071 return 0;
3072 }
3073
3074 /**
3075 * _base_send_port_enable - send port_enable(discovery stuff) to firmware
3076 * @ioc: per adapter object
3077 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3078 *
3079 * Returns 0 for success, non-zero for failure.
3080 */
3081 static int
3082 _base_send_port_enable(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
3083 {
3084 Mpi2PortEnableRequest_t *mpi_request;
3085 u32 ioc_state;
3086 unsigned long timeleft;
3087 int r = 0;
3088 u16 smid;
3089
3090 printk(MPT2SAS_INFO_FMT "sending port enable !!\n", ioc->name);
3091
3092 if (ioc->base_cmds.status & MPT2_CMD_PENDING) {
3093 printk(MPT2SAS_ERR_FMT "%s: internal command already in use\n",
3094 ioc->name, __func__);
3095 return -EAGAIN;
3096 }
3097
3098 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx);
3099 if (!smid) {
3100 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
3101 ioc->name, __func__);
3102 return -EAGAIN;
3103 }
3104
3105 ioc->base_cmds.status = MPT2_CMD_PENDING;
3106 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3107 ioc->base_cmds.smid = smid;
3108 memset(mpi_request, 0, sizeof(Mpi2PortEnableRequest_t));
3109 mpi_request->Function = MPI2_FUNCTION_PORT_ENABLE;
3110 mpi_request->VF_ID = 0; /* TODO */
3111 mpi_request->VP_ID = 0;
3112
3113 mpt2sas_base_put_smid_default(ioc, smid);
3114 init_completion(&ioc->base_cmds.done);
3115 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done,
3116 300*HZ);
3117 if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) {
3118 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
3119 ioc->name, __func__);
3120 _debug_dump_mf(mpi_request,
3121 sizeof(Mpi2PortEnableRequest_t)/4);
3122 if (ioc->base_cmds.status & MPT2_CMD_RESET)
3123 r = -EFAULT;
3124 else
3125 r = -ETIME;
3126 goto out;
3127 } else
3128 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: complete\n",
3129 ioc->name, __func__));
3130
3131 ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_OPERATIONAL,
3132 60, sleep_flag);
3133 if (ioc_state) {
3134 printk(MPT2SAS_ERR_FMT "%s: failed going to operational state "
3135 " (ioc_state=0x%x)\n", ioc->name, __func__, ioc_state);
3136 r = -EFAULT;
3137 }
3138 out:
3139 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
3140 printk(MPT2SAS_INFO_FMT "port enable: %s\n",
3141 ioc->name, ((r == 0) ? "SUCCESS" : "FAILED"));
3142 return r;
3143 }
3144
3145 /**
3146 * _base_unmask_events - turn on notification for this event
3147 * @ioc: per adapter object
3148 * @event: firmware event
3149 *
3150 * The mask is stored in ioc->event_masks.
3151 */
3152 static void
3153 _base_unmask_events(struct MPT2SAS_ADAPTER *ioc, u16 event)
3154 {
3155 u32 desired_event;
3156
3157 if (event >= 128)
3158 return;
3159
3160 desired_event = (1 << (event % 32));
3161
3162 if (event < 32)
3163 ioc->event_masks[0] &= ~desired_event;
3164 else if (event < 64)
3165 ioc->event_masks[1] &= ~desired_event;
3166 else if (event < 96)
3167 ioc->event_masks[2] &= ~desired_event;
3168 else if (event < 128)
3169 ioc->event_masks[3] &= ~desired_event;
3170 }
3171
3172 /**
3173 * _base_event_notification - send event notification
3174 * @ioc: per adapter object
3175 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3176 *
3177 * Returns 0 for success, non-zero for failure.
3178 */
3179 static int
3180 _base_event_notification(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
3181 {
3182 Mpi2EventNotificationRequest_t *mpi_request;
3183 unsigned long timeleft;
3184 u16 smid;
3185 int r = 0;
3186 int i;
3187
3188 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
3189 __func__));
3190
3191 if (ioc->base_cmds.status & MPT2_CMD_PENDING) {
3192 printk(MPT2SAS_ERR_FMT "%s: internal command already in use\n",
3193 ioc->name, __func__);
3194 return -EAGAIN;
3195 }
3196
3197 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx);
3198 if (!smid) {
3199 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
3200 ioc->name, __func__);
3201 return -EAGAIN;
3202 }
3203 ioc->base_cmds.status = MPT2_CMD_PENDING;
3204 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3205 ioc->base_cmds.smid = smid;
3206 memset(mpi_request, 0, sizeof(Mpi2EventNotificationRequest_t));
3207 mpi_request->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
3208 mpi_request->VF_ID = 0; /* TODO */
3209 mpi_request->VP_ID = 0;
3210 for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++)
3211 mpi_request->EventMasks[i] =
3212 cpu_to_le32(ioc->event_masks[i]);
3213 mpt2sas_base_put_smid_default(ioc, smid);
3214 init_completion(&ioc->base_cmds.done);
3215 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done, 30*HZ);
3216 if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) {
3217 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
3218 ioc->name, __func__);
3219 _debug_dump_mf(mpi_request,
3220 sizeof(Mpi2EventNotificationRequest_t)/4);
3221 if (ioc->base_cmds.status & MPT2_CMD_RESET)
3222 r = -EFAULT;
3223 else
3224 r = -ETIME;
3225 } else
3226 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: complete\n",
3227 ioc->name, __func__));
3228 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
3229 return r;
3230 }
3231
3232 /**
3233 * mpt2sas_base_validate_event_type - validating event types
3234 * @ioc: per adapter object
3235 * @event: firmware event
3236 *
3237 * This will turn on firmware event notification when application
3238 * ask for that event. We don't mask events that are already enabled.
3239 */
3240 void
3241 mpt2sas_base_validate_event_type(struct MPT2SAS_ADAPTER *ioc, u32 *event_type)
3242 {
3243 int i, j;
3244 u32 event_mask, desired_event;
3245 u8 send_update_to_fw;
3246
3247 for (i = 0, send_update_to_fw = 0; i <
3248 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++) {
3249 event_mask = ~event_type[i];
3250 desired_event = 1;
3251 for (j = 0; j < 32; j++) {
3252 if (!(event_mask & desired_event) &&
3253 (ioc->event_masks[i] & desired_event)) {
3254 ioc->event_masks[i] &= ~desired_event;
3255 send_update_to_fw = 1;
3256 }
3257 desired_event = (desired_event << 1);
3258 }
3259 }
3260
3261 if (!send_update_to_fw)
3262 return;
3263
3264 mutex_lock(&ioc->base_cmds.mutex);
3265 _base_event_notification(ioc, CAN_SLEEP);
3266 mutex_unlock(&ioc->base_cmds.mutex);
3267 }
3268
3269 /**
3270 * _base_diag_reset - the "big hammer" start of day reset
3271 * @ioc: per adapter object
3272 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3273 *
3274 * Returns 0 for success, non-zero for failure.
3275 */
3276 static int
3277 _base_diag_reset(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
3278 {
3279 u32 host_diagnostic;
3280 u32 ioc_state;
3281 u32 count;
3282 u32 hcb_size;
3283
3284 printk(MPT2SAS_INFO_FMT "sending diag reset !!\n", ioc->name);
3285
3286 _base_save_msix_table(ioc);
3287
3288 drsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "clear interrupts\n",
3289 ioc->name));
3290
3291 count = 0;
3292 do {
3293 /* Write magic sequence to WriteSequence register
3294 * Loop until in diagnostic mode
3295 */
3296 drsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "write magic "
3297 "sequence\n", ioc->name));
3298 writel(MPI2_WRSEQ_FLUSH_KEY_VALUE, &ioc->chip->WriteSequence);
3299 writel(MPI2_WRSEQ_1ST_KEY_VALUE, &ioc->chip->WriteSequence);
3300 writel(MPI2_WRSEQ_2ND_KEY_VALUE, &ioc->chip->WriteSequence);
3301 writel(MPI2_WRSEQ_3RD_KEY_VALUE, &ioc->chip->WriteSequence);
3302 writel(MPI2_WRSEQ_4TH_KEY_VALUE, &ioc->chip->WriteSequence);
3303 writel(MPI2_WRSEQ_5TH_KEY_VALUE, &ioc->chip->WriteSequence);
3304 writel(MPI2_WRSEQ_6TH_KEY_VALUE, &ioc->chip->WriteSequence);
3305
3306 /* wait 100 msec */
3307 if (sleep_flag == CAN_SLEEP)
3308 msleep(100);
3309 else
3310 mdelay(100);
3311
3312 if (count++ > 20)
3313 goto out;
3314
3315 host_diagnostic = readl(&ioc->chip->HostDiagnostic);
3316 drsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "wrote magic "
3317 "sequence: count(%d), host_diagnostic(0x%08x)\n",
3318 ioc->name, count, host_diagnostic));
3319
3320 } while ((host_diagnostic & MPI2_DIAG_DIAG_WRITE_ENABLE) == 0);
3321
3322 hcb_size = readl(&ioc->chip->HCBSize);
3323
3324 drsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "diag reset: issued\n",
3325 ioc->name));
3326 writel(host_diagnostic | MPI2_DIAG_RESET_ADAPTER,
3327 &ioc->chip->HostDiagnostic);
3328
3329 /* don't access any registers for 50 milliseconds */
3330 msleep(50);
3331
3332 /* 300 second max wait */
3333 for (count = 0; count < 3000000 ; count++) {
3334
3335 host_diagnostic = readl(&ioc->chip->HostDiagnostic);
3336
3337 if (host_diagnostic == 0xFFFFFFFF)
3338 goto out;
3339 if (!(host_diagnostic & MPI2_DIAG_RESET_ADAPTER))
3340 break;
3341
3342 /* wait 100 msec */
3343 if (sleep_flag == CAN_SLEEP)
3344 msleep(1);
3345 else
3346 mdelay(1);
3347 }
3348
3349 if (host_diagnostic & MPI2_DIAG_HCB_MODE) {
3350
3351 drsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "restart the adapter "
3352 "assuming the HCB Address points to good F/W\n",
3353 ioc->name));
3354 host_diagnostic &= ~MPI2_DIAG_BOOT_DEVICE_SELECT_MASK;
3355 host_diagnostic |= MPI2_DIAG_BOOT_DEVICE_SELECT_HCDW;
3356 writel(host_diagnostic, &ioc->chip->HostDiagnostic);
3357
3358 drsprintk(ioc, printk(MPT2SAS_DEBUG_FMT
3359 "re-enable the HCDW\n", ioc->name));
3360 writel(hcb_size | MPI2_HCB_SIZE_HCB_ENABLE,
3361 &ioc->chip->HCBSize);
3362 }
3363
3364 drsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "restart the adapter\n",
3365 ioc->name));
3366 writel(host_diagnostic & ~MPI2_DIAG_HOLD_IOC_RESET,
3367 &ioc->chip->HostDiagnostic);
3368
3369 drsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "disable writes to the "
3370 "diagnostic register\n", ioc->name));
3371 writel(MPI2_WRSEQ_FLUSH_KEY_VALUE, &ioc->chip->WriteSequence);
3372
3373 drsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "Wait for FW to go to the "
3374 "READY state\n", ioc->name));
3375 ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY, 20,
3376 sleep_flag);
3377 if (ioc_state) {
3378 printk(MPT2SAS_ERR_FMT "%s: failed going to ready state "
3379 " (ioc_state=0x%x)\n", ioc->name, __func__, ioc_state);
3380 goto out;
3381 }
3382
3383 _base_restore_msix_table(ioc);
3384 printk(MPT2SAS_INFO_FMT "diag reset: SUCCESS\n", ioc->name);
3385 return 0;
3386
3387 out:
3388 printk(MPT2SAS_ERR_FMT "diag reset: FAILED\n", ioc->name);
3389 return -EFAULT;
3390 }
3391
3392 /**
3393 * _base_make_ioc_ready - put controller in READY state
3394 * @ioc: per adapter object
3395 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3396 * @type: FORCE_BIG_HAMMER or SOFT_RESET
3397 *
3398 * Returns 0 for success, non-zero for failure.
3399 */
3400 static int
3401 _base_make_ioc_ready(struct MPT2SAS_ADAPTER *ioc, int sleep_flag,
3402 enum reset_type type)
3403 {
3404 u32 ioc_state;
3405 int rc;
3406
3407 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
3408 __func__));
3409
3410 ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
3411 dhsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: ioc_state(0x%08x)\n",
3412 ioc->name, __func__, ioc_state));
3413
3414 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_READY)
3415 return 0;
3416
3417 if (ioc_state & MPI2_DOORBELL_USED) {
3418 dhsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "unexpected doorbell "
3419 "active!\n", ioc->name));
3420 goto issue_diag_reset;
3421 }
3422
3423 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
3424 mpt2sas_base_fault_info(ioc, ioc_state &
3425 MPI2_DOORBELL_DATA_MASK);
3426 goto issue_diag_reset;
3427 }
3428
3429 if (type == FORCE_BIG_HAMMER)
3430 goto issue_diag_reset;
3431
3432 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_OPERATIONAL)
3433 if (!(_base_send_ioc_reset(ioc,
3434 MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET, 15, CAN_SLEEP))) {
3435 ioc->ioc_reset_count++;
3436 return 0;
3437 }
3438
3439 issue_diag_reset:
3440 rc = _base_diag_reset(ioc, CAN_SLEEP);
3441 ioc->ioc_reset_count++;
3442 return rc;
3443 }
3444
3445 /**
3446 * _base_make_ioc_operational - put controller in OPERATIONAL state
3447 * @ioc: per adapter object
3448 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3449 *
3450 * Returns 0 for success, non-zero for failure.
3451 */
3452 static int
3453 _base_make_ioc_operational(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
3454 {
3455 int r, i;
3456 unsigned long flags;
3457 u32 reply_address;
3458 u16 smid;
3459 struct _tr_list *delayed_tr, *delayed_tr_next;
3460
3461 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
3462 __func__));
3463
3464 /* clean the delayed target reset list */
3465 list_for_each_entry_safe(delayed_tr, delayed_tr_next,
3466 &ioc->delayed_tr_list, list) {
3467 list_del(&delayed_tr->list);
3468 kfree(delayed_tr);
3469 }
3470
3471 /* initialize the scsi lookup free list */
3472 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
3473 INIT_LIST_HEAD(&ioc->free_list);
3474 smid = 1;
3475 for (i = 0; i < ioc->scsiio_depth; i++, smid++) {
3476 ioc->scsi_lookup[i].cb_idx = 0xFF;
3477 ioc->scsi_lookup[i].smid = smid;
3478 ioc->scsi_lookup[i].scmd = NULL;
3479 list_add_tail(&ioc->scsi_lookup[i].tracker_list,
3480 &ioc->free_list);
3481 }
3482
3483 /* hi-priority queue */
3484 INIT_LIST_HEAD(&ioc->hpr_free_list);
3485 smid = ioc->hi_priority_smid;
3486 for (i = 0; i < ioc->hi_priority_depth; i++, smid++) {
3487 ioc->hpr_lookup[i].cb_idx = 0xFF;
3488 ioc->hpr_lookup[i].smid = smid;
3489 list_add_tail(&ioc->hpr_lookup[i].tracker_list,
3490 &ioc->hpr_free_list);
3491 }
3492
3493 /* internal queue */
3494 INIT_LIST_HEAD(&ioc->internal_free_list);
3495 smid = ioc->internal_smid;
3496 for (i = 0; i < ioc->internal_depth; i++, smid++) {
3497 ioc->internal_lookup[i].cb_idx = 0xFF;
3498 ioc->internal_lookup[i].smid = smid;
3499 list_add_tail(&ioc->internal_lookup[i].tracker_list,
3500 &ioc->internal_free_list);
3501 }
3502 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
3503
3504 /* initialize Reply Free Queue */
3505 for (i = 0, reply_address = (u32)ioc->reply_dma ;
3506 i < ioc->reply_free_queue_depth ; i++, reply_address +=
3507 ioc->reply_sz)
3508 ioc->reply_free[i] = cpu_to_le32(reply_address);
3509
3510 /* initialize Reply Post Free Queue */
3511 for (i = 0; i < ioc->reply_post_queue_depth; i++)
3512 ioc->reply_post_free[i].Words = ULLONG_MAX;
3513
3514 r = _base_send_ioc_init(ioc, sleep_flag);
3515 if (r)
3516 return r;
3517
3518 /* initialize the index's */
3519 ioc->reply_free_host_index = ioc->reply_free_queue_depth - 1;
3520 ioc->reply_post_host_index = 0;
3521 writel(ioc->reply_free_host_index, &ioc->chip->ReplyFreeHostIndex);
3522 writel(0, &ioc->chip->ReplyPostHostIndex);
3523
3524 _base_unmask_interrupts(ioc);
3525 r = _base_event_notification(ioc, sleep_flag);
3526 if (r)
3527 return r;
3528
3529 if (sleep_flag == CAN_SLEEP)
3530 _base_static_config_pages(ioc);
3531
3532 if (ioc->wait_for_port_enable_to_complete && disable_discovery > 0)
3533 return r;
3534
3535 r = _base_send_port_enable(ioc, sleep_flag);
3536 if (r)
3537 return r;
3538
3539 return r;
3540 }
3541
3542 /**
3543 * mpt2sas_base_free_resources - free resources controller resources (io/irq/memap)
3544 * @ioc: per adapter object
3545 *
3546 * Return nothing.
3547 */
3548 void
3549 mpt2sas_base_free_resources(struct MPT2SAS_ADAPTER *ioc)
3550 {
3551 struct pci_dev *pdev = ioc->pdev;
3552
3553 dexitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
3554 __func__));
3555
3556 _base_mask_interrupts(ioc);
3557 ioc->shost_recovery = 1;
3558 _base_make_ioc_ready(ioc, CAN_SLEEP, SOFT_RESET);
3559 ioc->shost_recovery = 0;
3560 if (ioc->pci_irq) {
3561 synchronize_irq(pdev->irq);
3562 free_irq(ioc->pci_irq, ioc);
3563 }
3564 _base_disable_msix(ioc);
3565 if (ioc->chip_phys)
3566 iounmap(ioc->chip);
3567 ioc->pci_irq = -1;
3568 ioc->chip_phys = 0;
3569 pci_release_selected_regions(ioc->pdev, ioc->bars);
3570 pci_disable_pcie_error_reporting(pdev);
3571 pci_disable_device(pdev);
3572 return;
3573 }
3574
3575 /**
3576 * mpt2sas_base_attach - attach controller instance
3577 * @ioc: per adapter object
3578 *
3579 * Returns 0 for success, non-zero for failure.
3580 */
3581 int
3582 mpt2sas_base_attach(struct MPT2SAS_ADAPTER *ioc)
3583 {
3584 int r, i;
3585
3586 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
3587 __func__));
3588
3589 r = mpt2sas_base_map_resources(ioc);
3590 if (r)
3591 return r;
3592
3593 pci_set_drvdata(ioc->pdev, ioc->shost);
3594 r = _base_get_ioc_facts(ioc, CAN_SLEEP);
3595 if (r)
3596 goto out_free_resources;
3597
3598 r = _base_make_ioc_ready(ioc, CAN_SLEEP, SOFT_RESET);
3599 if (r)
3600 goto out_free_resources;
3601
3602 ioc->pfacts = kcalloc(ioc->facts.NumberOfPorts,
3603 sizeof(Mpi2PortFactsReply_t), GFP_KERNEL);
3604 if (!ioc->pfacts) {
3605 r = -ENOMEM;
3606 goto out_free_resources;
3607 }
3608
3609 for (i = 0 ; i < ioc->facts.NumberOfPorts; i++) {
3610 r = _base_get_port_facts(ioc, i, CAN_SLEEP);
3611 if (r)
3612 goto out_free_resources;
3613 }
3614
3615 r = _base_allocate_memory_pools(ioc, CAN_SLEEP);
3616 if (r)
3617 goto out_free_resources;
3618
3619 init_waitqueue_head(&ioc->reset_wq);
3620
3621 ioc->fwfault_debug = mpt2sas_fwfault_debug;
3622
3623 /* base internal command bits */
3624 mutex_init(&ioc->base_cmds.mutex);
3625 ioc->base_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
3626 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
3627
3628 /* transport internal command bits */
3629 ioc->transport_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
3630 ioc->transport_cmds.status = MPT2_CMD_NOT_USED;
3631 mutex_init(&ioc->transport_cmds.mutex);
3632
3633 /* scsih internal command bits */
3634 ioc->scsih_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
3635 ioc->scsih_cmds.status = MPT2_CMD_NOT_USED;
3636 mutex_init(&ioc->scsih_cmds.mutex);
3637
3638 /* task management internal command bits */
3639 ioc->tm_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
3640 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
3641 mutex_init(&ioc->tm_cmds.mutex);
3642
3643 /* config page internal command bits */
3644 ioc->config_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
3645 ioc->config_cmds.status = MPT2_CMD_NOT_USED;
3646 mutex_init(&ioc->config_cmds.mutex);
3647
3648 /* ctl module internal command bits */
3649 ioc->ctl_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
3650 ioc->ctl_cmds.status = MPT2_CMD_NOT_USED;
3651 mutex_init(&ioc->ctl_cmds.mutex);
3652
3653 if (!ioc->base_cmds.reply || !ioc->transport_cmds.reply ||
3654 !ioc->scsih_cmds.reply || !ioc->tm_cmds.reply ||
3655 !ioc->config_cmds.reply || !ioc->ctl_cmds.reply) {
3656 r = -ENOMEM;
3657 goto out_free_resources;
3658 }
3659
3660 init_completion(&ioc->shost_recovery_done);
3661
3662 for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++)
3663 ioc->event_masks[i] = -1;
3664
3665 /* here we enable the events we care about */
3666 _base_unmask_events(ioc, MPI2_EVENT_SAS_DISCOVERY);
3667 _base_unmask_events(ioc, MPI2_EVENT_SAS_BROADCAST_PRIMITIVE);
3668 _base_unmask_events(ioc, MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST);
3669 _base_unmask_events(ioc, MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
3670 _base_unmask_events(ioc, MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE);
3671 _base_unmask_events(ioc, MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST);
3672 _base_unmask_events(ioc, MPI2_EVENT_IR_VOLUME);
3673 _base_unmask_events(ioc, MPI2_EVENT_IR_PHYSICAL_DISK);
3674 _base_unmask_events(ioc, MPI2_EVENT_IR_OPERATION_STATUS);
3675 _base_unmask_events(ioc, MPI2_EVENT_TASK_SET_FULL);
3676 _base_unmask_events(ioc, MPI2_EVENT_LOG_ENTRY_ADDED);
3677 r = _base_make_ioc_operational(ioc, CAN_SLEEP);
3678 if (r)
3679 goto out_free_resources;
3680
3681 mpt2sas_base_start_watchdog(ioc);
3682 if (diag_buffer_enable != 0)
3683 mpt2sas_enable_diag_buffer(ioc, diag_buffer_enable);
3684 return 0;
3685
3686 out_free_resources:
3687
3688 ioc->remove_host = 1;
3689 mpt2sas_base_free_resources(ioc);
3690 _base_release_memory_pools(ioc);
3691 pci_set_drvdata(ioc->pdev, NULL);
3692 kfree(ioc->tm_cmds.reply);
3693 kfree(ioc->transport_cmds.reply);
3694 kfree(ioc->scsih_cmds.reply);
3695 kfree(ioc->config_cmds.reply);
3696 kfree(ioc->base_cmds.reply);
3697 kfree(ioc->ctl_cmds.reply);
3698 kfree(ioc->pfacts);
3699 ioc->ctl_cmds.reply = NULL;
3700 ioc->base_cmds.reply = NULL;
3701 ioc->tm_cmds.reply = NULL;
3702 ioc->scsih_cmds.reply = NULL;
3703 ioc->transport_cmds.reply = NULL;
3704 ioc->config_cmds.reply = NULL;
3705 ioc->pfacts = NULL;
3706 return r;
3707 }
3708
3709
3710 /**
3711 * mpt2sas_base_detach - remove controller instance
3712 * @ioc: per adapter object
3713 *
3714 * Return nothing.
3715 */
3716 void
3717 mpt2sas_base_detach(struct MPT2SAS_ADAPTER *ioc)
3718 {
3719
3720 dexitprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
3721 __func__));
3722
3723 mpt2sas_base_stop_watchdog(ioc);
3724 mpt2sas_base_free_resources(ioc);
3725 _base_release_memory_pools(ioc);
3726 pci_set_drvdata(ioc->pdev, NULL);
3727 kfree(ioc->pfacts);
3728 kfree(ioc->ctl_cmds.reply);
3729 kfree(ioc->base_cmds.reply);
3730 kfree(ioc->tm_cmds.reply);
3731 kfree(ioc->transport_cmds.reply);
3732 kfree(ioc->scsih_cmds.reply);
3733 kfree(ioc->config_cmds.reply);
3734 }
3735
3736 /**
3737 * _base_reset_handler - reset callback handler (for base)
3738 * @ioc: per adapter object
3739 * @reset_phase: phase
3740 *
3741 * The handler for doing any required cleanup or initialization.
3742 *
3743 * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET,
3744 * MPT2_IOC_DONE_RESET
3745 *
3746 * Return nothing.
3747 */
3748 static void
3749 _base_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
3750 {
3751 switch (reset_phase) {
3752 case MPT2_IOC_PRE_RESET:
3753 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
3754 "MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
3755 break;
3756 case MPT2_IOC_AFTER_RESET:
3757 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
3758 "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
3759 if (ioc->transport_cmds.status & MPT2_CMD_PENDING) {
3760 ioc->transport_cmds.status |= MPT2_CMD_RESET;
3761 mpt2sas_base_free_smid(ioc, ioc->transport_cmds.smid);
3762 complete(&ioc->transport_cmds.done);
3763 }
3764 if (ioc->base_cmds.status & MPT2_CMD_PENDING) {
3765 ioc->base_cmds.status |= MPT2_CMD_RESET;
3766 mpt2sas_base_free_smid(ioc, ioc->base_cmds.smid);
3767 complete(&ioc->base_cmds.done);
3768 }
3769 if (ioc->config_cmds.status & MPT2_CMD_PENDING) {
3770 ioc->config_cmds.status |= MPT2_CMD_RESET;
3771 mpt2sas_base_free_smid(ioc, ioc->config_cmds.smid);
3772 ioc->config_cmds.smid = USHRT_MAX;
3773 complete(&ioc->config_cmds.done);
3774 }
3775 break;
3776 case MPT2_IOC_DONE_RESET:
3777 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
3778 "MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
3779 break;
3780 }
3781 mpt2sas_scsih_reset_handler(ioc, reset_phase);
3782 mpt2sas_ctl_reset_handler(ioc, reset_phase);
3783 }
3784
3785 /**
3786 * _wait_for_commands_to_complete - reset controller
3787 * @ioc: Pointer to MPT_ADAPTER structure
3788 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3789 *
3790 * This function waiting(3s) for all pending commands to complete
3791 * prior to putting controller in reset.
3792 */
3793 static void
3794 _wait_for_commands_to_complete(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
3795 {
3796 u32 ioc_state;
3797 unsigned long flags;
3798 u16 i;
3799
3800 ioc->pending_io_count = 0;
3801 if (sleep_flag != CAN_SLEEP)
3802 return;
3803
3804 ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
3805 if ((ioc_state & MPI2_IOC_STATE_MASK) != MPI2_IOC_STATE_OPERATIONAL)
3806 return;
3807
3808 /* pending command count */
3809 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
3810 for (i = 0; i < ioc->scsiio_depth; i++)
3811 if (ioc->scsi_lookup[i].cb_idx != 0xFF)
3812 ioc->pending_io_count++;
3813 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
3814
3815 if (!ioc->pending_io_count)
3816 return;
3817
3818 /* wait for pending commands to complete */
3819 wait_event_timeout(ioc->reset_wq, ioc->pending_io_count == 0, 10 * HZ);
3820 }
3821
3822 /**
3823 * mpt2sas_base_hard_reset_handler - reset controller
3824 * @ioc: Pointer to MPT_ADAPTER structure
3825 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3826 * @type: FORCE_BIG_HAMMER or SOFT_RESET
3827 *
3828 * Returns 0 for success, non-zero for failure.
3829 */
3830 int
3831 mpt2sas_base_hard_reset_handler(struct MPT2SAS_ADAPTER *ioc, int sleep_flag,
3832 enum reset_type type)
3833 {
3834 int r;
3835 unsigned long flags;
3836
3837 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name,
3838 __func__));
3839
3840 if (mpt2sas_fwfault_debug)
3841 mpt2sas_halt_firmware(ioc);
3842
3843 /* TODO - What we really should be doing is pulling
3844 * out all the code associated with NO_SLEEP; its never used.
3845 * That is legacy code from mpt fusion driver, ported over.
3846 * I will leave this BUG_ON here for now till its been resolved.
3847 */
3848 BUG_ON(sleep_flag == NO_SLEEP);
3849
3850 /* wait for an active reset in progress to complete */
3851 if (!mutex_trylock(&ioc->reset_in_progress_mutex)) {
3852 do {
3853 ssleep(1);
3854 } while (ioc->shost_recovery == 1);
3855 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: exit\n", ioc->name,
3856 __func__));
3857 return ioc->ioc_reset_in_progress_status;
3858 }
3859
3860 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
3861 ioc->shost_recovery = 1;
3862 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
3863
3864 _base_reset_handler(ioc, MPT2_IOC_PRE_RESET);
3865 _wait_for_commands_to_complete(ioc, sleep_flag);
3866 _base_mask_interrupts(ioc);
3867 r = _base_make_ioc_ready(ioc, sleep_flag, type);
3868 if (r)
3869 goto out;
3870 _base_reset_handler(ioc, MPT2_IOC_AFTER_RESET);
3871 r = _base_make_ioc_operational(ioc, sleep_flag);
3872 if (!r)
3873 _base_reset_handler(ioc, MPT2_IOC_DONE_RESET);
3874 out:
3875 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: %s\n",
3876 ioc->name, __func__, ((r == 0) ? "SUCCESS" : "FAILED")));
3877
3878 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
3879 ioc->ioc_reset_in_progress_status = r;
3880 ioc->shost_recovery = 0;
3881 complete(&ioc->shost_recovery_done);
3882 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
3883 mutex_unlock(&ioc->reset_in_progress_mutex);
3884
3885 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: exit\n", ioc->name,
3886 __func__));
3887 return r;
3888 }
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree