blob: 5e69f468535f243d200aaf1a6af31f4c8b9205cb [file] [log] [blame]
Eric Moore635374e2009-03-09 01:21:12 -06001/*
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
Kashyap, Desai31b7f2e2010-03-17 16:28:04 +05306 * Copyright (C) 2007-2010 LSI Corporation
Eric Moore635374e2009-03-09 01:21:12 -06007 * (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
Eric Moore635374e2009-03-09 01:21:12 -060045#include <linux/kernel.h>
46#include <linux/module.h>
47#include <linux/errno.h>
48#include <linux/init.h>
49#include <linux/slab.h>
50#include <linux/types.h>
51#include <linux/pci.h>
52#include <linux/kdev_t.h>
53#include <linux/blkdev.h>
54#include <linux/delay.h>
55#include <linux/interrupt.h>
56#include <linux/dma-mapping.h>
57#include <linux/sort.h>
58#include <linux/io.h>
Kashyap, Desaia8ebd762009-09-23 17:29:29 +053059#include <linux/time.h>
nagalakshmi.nandigama@lsi.com845a0e42011-12-01 07:42:04 +053060#include <linux/kthread.h>
Kashyap, Desaief7c80c2010-04-05 14:20:07 +053061#include <linux/aer.h>
Eric Moore635374e2009-03-09 01:21:12 -060062
63#include "mpt2sas_base.h"
64
65static MPT_CALLBACK mpt_callbacks[MPT_MAX_CALLBACKS];
66
67#define FAULT_POLLING_INTERVAL 1000 /* in milliseconds */
Eric Moore635374e2009-03-09 01:21:12 -060068
nagalakshmi.nandigama@lsi.comaff132d2011-12-01 07:53:08 +053069#define MAX_HBA_QUEUE_DEPTH 30000
70#define MAX_CHAIN_DEPTH 100000
Eric Moore635374e2009-03-09 01:21:12 -060071static int max_queue_depth = -1;
72module_param(max_queue_depth, int, 0);
73MODULE_PARM_DESC(max_queue_depth, " max controller queue depth ");
74
75static int max_sgl_entries = -1;
76module_param(max_sgl_entries, int, 0);
77MODULE_PARM_DESC(max_sgl_entries, " max sg entries ");
78
79static int msix_disable = -1;
80module_param(msix_disable, int, 0);
81MODULE_PARM_DESC(msix_disable, " disable msix routed interrupts (default=0)");
82
Kashyap, Desai6cb8ef52010-11-13 04:32:18 +053083static int missing_delay[2] = {-1, -1};
84module_param_array(missing_delay, int, NULL, 0);
85MODULE_PARM_DESC(missing_delay, " device missing delay , io missing delay");
86
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +053087static int mpt2sas_fwfault_debug;
88MODULE_PARM_DESC(mpt2sas_fwfault_debug, " enable detection of firmware fault "
89 "and halt firmware - (default=0)");
90
91static int disable_discovery = -1;
92module_param(disable_discovery, int, 0);
93MODULE_PARM_DESC(disable_discovery, " disable discovery ");
94
Kashyap, Desaifa7f3162009-09-23 17:26:58 +053095/**
96 * _scsih_set_fwfault_debug - global setting of ioc->fwfault_debug.
97 *
98 */
99static int
100_scsih_set_fwfault_debug(const char *val, struct kernel_param *kp)
101{
102 int ret = param_set_int(val, kp);
103 struct MPT2SAS_ADAPTER *ioc;
104
105 if (ret)
106 return ret;
107
Kashyap, Desaie75b9b62009-12-16 18:52:39 +0530108 printk(KERN_INFO "setting fwfault_debug(%d)\n", mpt2sas_fwfault_debug);
Kashyap, Desaifa7f3162009-09-23 17:26:58 +0530109 list_for_each_entry(ioc, &mpt2sas_ioc_list, list)
110 ioc->fwfault_debug = mpt2sas_fwfault_debug;
111 return 0;
112}
nagalakshmi.nandigama@lsi.com845a0e42011-12-01 07:42:04 +0530113
Kashyap, Desaifa7f3162009-09-23 17:26:58 +0530114module_param_call(mpt2sas_fwfault_debug, _scsih_set_fwfault_debug,
115 param_get_int, &mpt2sas_fwfault_debug, 0644);
116
Eric Moore635374e2009-03-09 01:21:12 -0600117/**
nagalakshmi.nandigama@lsi.com845a0e42011-12-01 07:42:04 +0530118 * mpt2sas_remove_dead_ioc_func - kthread context to remove dead ioc
119 * @arg: input argument, used to derive ioc
120 *
121 * Return 0 if controller is removed from pci subsystem.
122 * Return -1 for other case.
123 */
124static int mpt2sas_remove_dead_ioc_func(void *arg)
125{
126 struct MPT2SAS_ADAPTER *ioc = (struct MPT2SAS_ADAPTER *)arg;
127 struct pci_dev *pdev;
128
129 if ((ioc == NULL))
130 return -1;
131
132 pdev = ioc->pdev;
133 if ((pdev == NULL))
134 return -1;
Yinghai Lu210647a2012-02-25 13:54:20 -0800135 pci_stop_and_remove_bus_device(pdev);
nagalakshmi.nandigama@lsi.com845a0e42011-12-01 07:42:04 +0530136 return 0;
137}
138
139
140/**
Eric Moore635374e2009-03-09 01:21:12 -0600141 * _base_fault_reset_work - workq handling ioc fault conditions
142 * @work: input argument, used to derive ioc
143 * Context: sleep.
144 *
145 * Return nothing.
146 */
147static void
148_base_fault_reset_work(struct work_struct *work)
149{
150 struct MPT2SAS_ADAPTER *ioc =
151 container_of(work, struct MPT2SAS_ADAPTER, fault_reset_work.work);
152 unsigned long flags;
153 u32 doorbell;
154 int rc;
nagalakshmi.nandigama@lsi.com845a0e42011-12-01 07:42:04 +0530155 struct task_struct *p;
Eric Moore635374e2009-03-09 01:21:12 -0600156
157 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
Kashyap, Desai155dd4c2009-08-20 13:22:00 +0530158 if (ioc->shost_recovery)
Eric Moore635374e2009-03-09 01:21:12 -0600159 goto rearm_timer;
160 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
161
162 doorbell = mpt2sas_base_get_iocstate(ioc, 0);
nagalakshmi.nandigama@lsi.com845a0e42011-12-01 07:42:04 +0530163 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_MASK) {
164 printk(MPT2SAS_INFO_FMT "%s : SAS host is non-operational !!!!\n",
165 ioc->name, __func__);
166
167 /*
168 * Call _scsih_flush_pending_cmds callback so that we flush all
169 * pending commands back to OS. This call is required to aovid
170 * deadlock at block layer. Dead IOC will fail to do diag reset,
171 * and this call is safe since dead ioc will never return any
172 * command back from HW.
173 */
174 ioc->schedule_dead_ioc_flush_running_cmds(ioc);
175 /*
176 * Set remove_host flag early since kernel thread will
177 * take some time to execute.
178 */
179 ioc->remove_host = 1;
180 /*Remove the Dead Host */
181 p = kthread_run(mpt2sas_remove_dead_ioc_func, ioc,
182 "mpt2sas_dead_ioc_%d", ioc->id);
183 if (IS_ERR(p)) {
184 printk(MPT2SAS_ERR_FMT
185 "%s: Running mpt2sas_dead_ioc thread failed !!!!\n",
186 ioc->name, __func__);
187 } else {
188 printk(MPT2SAS_ERR_FMT
189 "%s: Running mpt2sas_dead_ioc thread success !!!!\n",
190 ioc->name, __func__);
191 }
192
193 return; /* don't rearm timer */
194 }
195
Eric Moore635374e2009-03-09 01:21:12 -0600196 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
197 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
198 FORCE_BIG_HAMMER);
199 printk(MPT2SAS_WARN_FMT "%s: hard reset: %s\n", ioc->name,
200 __func__, (rc == 0) ? "success" : "failed");
201 doorbell = mpt2sas_base_get_iocstate(ioc, 0);
202 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT)
203 mpt2sas_base_fault_info(ioc, doorbell &
204 MPI2_DOORBELL_DATA_MASK);
205 }
206
207 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
208 rearm_timer:
209 if (ioc->fault_reset_work_q)
210 queue_delayed_work(ioc->fault_reset_work_q,
211 &ioc->fault_reset_work,
212 msecs_to_jiffies(FAULT_POLLING_INTERVAL));
213 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
214}
215
Kashyap, Desaie4750c92009-08-07 19:37:59 +0530216/**
217 * mpt2sas_base_start_watchdog - start the fault_reset_work_q
Kashyap, Desaicef7a122009-09-23 17:27:41 +0530218 * @ioc: per adapter object
Kashyap, Desaie4750c92009-08-07 19:37:59 +0530219 * Context: sleep.
220 *
221 * Return nothing.
222 */
223void
224mpt2sas_base_start_watchdog(struct MPT2SAS_ADAPTER *ioc)
225{
226 unsigned long flags;
227
228 if (ioc->fault_reset_work_q)
229 return;
230
231 /* initialize fault polling */
232 INIT_DELAYED_WORK(&ioc->fault_reset_work, _base_fault_reset_work);
233 snprintf(ioc->fault_reset_work_q_name,
234 sizeof(ioc->fault_reset_work_q_name), "poll_%d_status", ioc->id);
235 ioc->fault_reset_work_q =
236 create_singlethread_workqueue(ioc->fault_reset_work_q_name);
237 if (!ioc->fault_reset_work_q) {
238 printk(MPT2SAS_ERR_FMT "%s: failed (line=%d)\n",
239 ioc->name, __func__, __LINE__);
240 return;
241 }
242 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
243 if (ioc->fault_reset_work_q)
244 queue_delayed_work(ioc->fault_reset_work_q,
245 &ioc->fault_reset_work,
246 msecs_to_jiffies(FAULT_POLLING_INTERVAL));
247 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
248}
249
250/**
251 * mpt2sas_base_stop_watchdog - stop the fault_reset_work_q
Kashyap, Desaicef7a122009-09-23 17:27:41 +0530252 * @ioc: per adapter object
Kashyap, Desaie4750c92009-08-07 19:37:59 +0530253 * Context: sleep.
254 *
255 * Return nothing.
256 */
257void
258mpt2sas_base_stop_watchdog(struct MPT2SAS_ADAPTER *ioc)
259{
260 unsigned long flags;
261 struct workqueue_struct *wq;
262
263 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
264 wq = ioc->fault_reset_work_q;
265 ioc->fault_reset_work_q = NULL;
266 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
267 if (wq) {
268 if (!cancel_delayed_work(&ioc->fault_reset_work))
269 flush_workqueue(wq);
270 destroy_workqueue(wq);
271 }
272}
273
Kashyap, Desaifa7f3162009-09-23 17:26:58 +0530274/**
275 * mpt2sas_base_fault_info - verbose translation of firmware FAULT code
276 * @ioc: per adapter object
277 * @fault_code: fault code
278 *
279 * Return nothing.
280 */
281void
282mpt2sas_base_fault_info(struct MPT2SAS_ADAPTER *ioc , u16 fault_code)
283{
284 printk(MPT2SAS_ERR_FMT "fault_state(0x%04x)!\n",
285 ioc->name, fault_code);
286}
287
288/**
289 * mpt2sas_halt_firmware - halt's mpt controller firmware
290 * @ioc: per adapter object
291 *
292 * For debugging timeout related issues. Writing 0xCOFFEE00
293 * to the doorbell register will halt controller firmware. With
294 * the purpose to stop both driver and firmware, the enduser can
295 * obtain a ring buffer from controller UART.
296 */
297void
298mpt2sas_halt_firmware(struct MPT2SAS_ADAPTER *ioc)
299{
300 u32 doorbell;
301
302 if (!ioc->fwfault_debug)
303 return;
304
305 dump_stack();
306
307 doorbell = readl(&ioc->chip->Doorbell);
308 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT)
309 mpt2sas_base_fault_info(ioc , doorbell);
310 else {
311 writel(0xC0FFEE00, &ioc->chip->Doorbell);
312 printk(MPT2SAS_ERR_FMT "Firmware is halted due to command "
313 "timeout\n", ioc->name);
314 }
315
316 panic("panic in %s\n", __func__);
317}
318
Eric Moore635374e2009-03-09 01:21:12 -0600319#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
320/**
321 * _base_sas_ioc_info - verbose translation of the ioc status
Kashyap, Desaicef7a122009-09-23 17:27:41 +0530322 * @ioc: per adapter object
Eric Moore635374e2009-03-09 01:21:12 -0600323 * @mpi_reply: reply mf payload returned from firmware
324 * @request_hdr: request mf
325 *
326 * Return nothing.
327 */
328static void
329_base_sas_ioc_info(struct MPT2SAS_ADAPTER *ioc, MPI2DefaultReply_t *mpi_reply,
330 MPI2RequestHeader_t *request_hdr)
331{
332 u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
333 MPI2_IOCSTATUS_MASK;
334 char *desc = NULL;
335 u16 frame_sz;
336 char *func_str = NULL;
337
338 /* SCSI_IO, RAID_PASS are handled from _scsih_scsi_ioc_info */
339 if (request_hdr->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
340 request_hdr->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
341 request_hdr->Function == MPI2_FUNCTION_EVENT_NOTIFICATION)
342 return;
343
Kashyap, Desaie94f6742010-03-17 16:24:52 +0530344 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
345 return;
346
Eric Moore635374e2009-03-09 01:21:12 -0600347 switch (ioc_status) {
348
349/****************************************************************************
350* Common IOCStatus values for all replies
351****************************************************************************/
352
353 case MPI2_IOCSTATUS_INVALID_FUNCTION:
354 desc = "invalid function";
355 break;
356 case MPI2_IOCSTATUS_BUSY:
357 desc = "busy";
358 break;
359 case MPI2_IOCSTATUS_INVALID_SGL:
360 desc = "invalid sgl";
361 break;
362 case MPI2_IOCSTATUS_INTERNAL_ERROR:
363 desc = "internal error";
364 break;
365 case MPI2_IOCSTATUS_INVALID_VPID:
366 desc = "invalid vpid";
367 break;
368 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
369 desc = "insufficient resources";
370 break;
371 case MPI2_IOCSTATUS_INVALID_FIELD:
372 desc = "invalid field";
373 break;
374 case MPI2_IOCSTATUS_INVALID_STATE:
375 desc = "invalid state";
376 break;
377 case MPI2_IOCSTATUS_OP_STATE_NOT_SUPPORTED:
378 desc = "op state not supported";
379 break;
380
381/****************************************************************************
382* Config IOCStatus values
383****************************************************************************/
384
385 case MPI2_IOCSTATUS_CONFIG_INVALID_ACTION:
386 desc = "config invalid action";
387 break;
388 case MPI2_IOCSTATUS_CONFIG_INVALID_TYPE:
389 desc = "config invalid type";
390 break;
391 case MPI2_IOCSTATUS_CONFIG_INVALID_PAGE:
392 desc = "config invalid page";
393 break;
394 case MPI2_IOCSTATUS_CONFIG_INVALID_DATA:
395 desc = "config invalid data";
396 break;
397 case MPI2_IOCSTATUS_CONFIG_NO_DEFAULTS:
398 desc = "config no defaults";
399 break;
400 case MPI2_IOCSTATUS_CONFIG_CANT_COMMIT:
401 desc = "config cant commit";
402 break;
403
404/****************************************************************************
405* SCSI IO Reply
406****************************************************************************/
407
408 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
409 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
410 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
411 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
412 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
413 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
414 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
415 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
416 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
417 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
418 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
419 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
420 break;
421
422/****************************************************************************
423* For use by SCSI Initiator and SCSI Target end-to-end data protection
424****************************************************************************/
425
426 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
427 desc = "eedp guard error";
428 break;
429 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
430 desc = "eedp ref tag error";
431 break;
432 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
433 desc = "eedp app tag error";
434 break;
435
436/****************************************************************************
437* SCSI Target values
438****************************************************************************/
439
440 case MPI2_IOCSTATUS_TARGET_INVALID_IO_INDEX:
441 desc = "target invalid io index";
442 break;
443 case MPI2_IOCSTATUS_TARGET_ABORTED:
444 desc = "target aborted";
445 break;
446 case MPI2_IOCSTATUS_TARGET_NO_CONN_RETRYABLE:
447 desc = "target no conn retryable";
448 break;
449 case MPI2_IOCSTATUS_TARGET_NO_CONNECTION:
450 desc = "target no connection";
451 break;
452 case MPI2_IOCSTATUS_TARGET_XFER_COUNT_MISMATCH:
453 desc = "target xfer count mismatch";
454 break;
455 case MPI2_IOCSTATUS_TARGET_DATA_OFFSET_ERROR:
456 desc = "target data offset error";
457 break;
458 case MPI2_IOCSTATUS_TARGET_TOO_MUCH_WRITE_DATA:
459 desc = "target too much write data";
460 break;
461 case MPI2_IOCSTATUS_TARGET_IU_TOO_SHORT:
462 desc = "target iu too short";
463 break;
464 case MPI2_IOCSTATUS_TARGET_ACK_NAK_TIMEOUT:
465 desc = "target ack nak timeout";
466 break;
467 case MPI2_IOCSTATUS_TARGET_NAK_RECEIVED:
468 desc = "target nak received";
469 break;
470
471/****************************************************************************
472* Serial Attached SCSI values
473****************************************************************************/
474
475 case MPI2_IOCSTATUS_SAS_SMP_REQUEST_FAILED:
476 desc = "smp request failed";
477 break;
478 case MPI2_IOCSTATUS_SAS_SMP_DATA_OVERRUN:
479 desc = "smp data overrun";
480 break;
481
482/****************************************************************************
483* Diagnostic Buffer Post / Diagnostic Release values
484****************************************************************************/
485
486 case MPI2_IOCSTATUS_DIAGNOSTIC_RELEASED:
487 desc = "diagnostic released";
488 break;
489 default:
490 break;
491 }
492
493 if (!desc)
494 return;
495
496 switch (request_hdr->Function) {
497 case MPI2_FUNCTION_CONFIG:
498 frame_sz = sizeof(Mpi2ConfigRequest_t) + ioc->sge_size;
499 func_str = "config_page";
500 break;
501 case MPI2_FUNCTION_SCSI_TASK_MGMT:
502 frame_sz = sizeof(Mpi2SCSITaskManagementRequest_t);
503 func_str = "task_mgmt";
504 break;
505 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
506 frame_sz = sizeof(Mpi2SasIoUnitControlRequest_t);
507 func_str = "sas_iounit_ctl";
508 break;
509 case MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR:
510 frame_sz = sizeof(Mpi2SepRequest_t);
511 func_str = "enclosure";
512 break;
513 case MPI2_FUNCTION_IOC_INIT:
514 frame_sz = sizeof(Mpi2IOCInitRequest_t);
515 func_str = "ioc_init";
516 break;
517 case MPI2_FUNCTION_PORT_ENABLE:
518 frame_sz = sizeof(Mpi2PortEnableRequest_t);
519 func_str = "port_enable";
520 break;
521 case MPI2_FUNCTION_SMP_PASSTHROUGH:
522 frame_sz = sizeof(Mpi2SmpPassthroughRequest_t) + ioc->sge_size;
523 func_str = "smp_passthru";
524 break;
525 default:
526 frame_sz = 32;
527 func_str = "unknown";
528 break;
529 }
530
531 printk(MPT2SAS_WARN_FMT "ioc_status: %s(0x%04x), request(0x%p),"
532 " (%s)\n", ioc->name, desc, ioc_status, request_hdr, func_str);
533
534 _debug_dump_mf(request_hdr, frame_sz/4);
535}
536
537/**
538 * _base_display_event_data - verbose translation of firmware asyn events
Kashyap, Desaicef7a122009-09-23 17:27:41 +0530539 * @ioc: per adapter object
Eric Moore635374e2009-03-09 01:21:12 -0600540 * @mpi_reply: reply mf payload returned from firmware
541 *
542 * Return nothing.
543 */
544static void
545_base_display_event_data(struct MPT2SAS_ADAPTER *ioc,
546 Mpi2EventNotificationReply_t *mpi_reply)
547{
548 char *desc = NULL;
549 u16 event;
550
551 if (!(ioc->logging_level & MPT_DEBUG_EVENTS))
552 return;
553
554 event = le16_to_cpu(mpi_reply->Event);
555
556 switch (event) {
557 case MPI2_EVENT_LOG_DATA:
558 desc = "Log Data";
559 break;
560 case MPI2_EVENT_STATE_CHANGE:
561 desc = "Status Change";
562 break;
563 case MPI2_EVENT_HARD_RESET_RECEIVED:
564 desc = "Hard Reset Received";
565 break;
566 case MPI2_EVENT_EVENT_CHANGE:
567 desc = "Event Change";
568 break;
Eric Moore635374e2009-03-09 01:21:12 -0600569 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
570 desc = "Device Status Change";
571 break;
572 case MPI2_EVENT_IR_OPERATION_STATUS:
Kashyap, Desai0bdccdb2011-04-07 12:32:49 +0530573 if (!ioc->hide_ir_msg)
574 desc = "IR Operation Status";
Eric Moore635374e2009-03-09 01:21:12 -0600575 break;
576 case MPI2_EVENT_SAS_DISCOVERY:
Kashyap, Desaie94f6742010-03-17 16:24:52 +0530577 {
578 Mpi2EventDataSasDiscovery_t *event_data =
579 (Mpi2EventDataSasDiscovery_t *)mpi_reply->EventData;
580 printk(MPT2SAS_INFO_FMT "Discovery: (%s)", ioc->name,
581 (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
582 "start" : "stop");
583 if (event_data->DiscoveryStatus)
584 printk("discovery_status(0x%08x)",
585 le32_to_cpu(event_data->DiscoveryStatus));
Julia Lawall7968f192010-08-05 22:19:36 +0200586 printk("\n");
Kashyap, Desaie94f6742010-03-17 16:24:52 +0530587 return;
588 }
Eric Moore635374e2009-03-09 01:21:12 -0600589 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
590 desc = "SAS Broadcast Primitive";
591 break;
592 case MPI2_EVENT_SAS_INIT_DEVICE_STATUS_CHANGE:
593 desc = "SAS Init Device Status Change";
594 break;
595 case MPI2_EVENT_SAS_INIT_TABLE_OVERFLOW:
596 desc = "SAS Init Table Overflow";
597 break;
598 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
599 desc = "SAS Topology Change List";
600 break;
601 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
602 desc = "SAS Enclosure Device Status Change";
603 break;
604 case MPI2_EVENT_IR_VOLUME:
Kashyap, Desai0bdccdb2011-04-07 12:32:49 +0530605 if (!ioc->hide_ir_msg)
606 desc = "IR Volume";
Eric Moore635374e2009-03-09 01:21:12 -0600607 break;
608 case MPI2_EVENT_IR_PHYSICAL_DISK:
Kashyap, Desai0bdccdb2011-04-07 12:32:49 +0530609 if (!ioc->hide_ir_msg)
610 desc = "IR Physical Disk";
Eric Moore635374e2009-03-09 01:21:12 -0600611 break;
612 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
Kashyap, Desai0bdccdb2011-04-07 12:32:49 +0530613 if (!ioc->hide_ir_msg)
614 desc = "IR Configuration Change List";
Eric Moore635374e2009-03-09 01:21:12 -0600615 break;
616 case MPI2_EVENT_LOG_ENTRY_ADDED:
Kashyap, Desai0bdccdb2011-04-07 12:32:49 +0530617 if (!ioc->hide_ir_msg)
618 desc = "Log Entry Added";
Eric Moore635374e2009-03-09 01:21:12 -0600619 break;
620 }
621
622 if (!desc)
623 return;
624
625 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, desc);
626}
627#endif
628
629/**
630 * _base_sas_log_info - verbose translation of firmware log info
Kashyap, Desaicef7a122009-09-23 17:27:41 +0530631 * @ioc: per adapter object
Eric Moore635374e2009-03-09 01:21:12 -0600632 * @log_info: log info
633 *
634 * Return nothing.
635 */
636static void
637_base_sas_log_info(struct MPT2SAS_ADAPTER *ioc , u32 log_info)
638{
639 union loginfo_type {
640 u32 loginfo;
641 struct {
642 u32 subcode:16;
643 u32 code:8;
644 u32 originator:4;
645 u32 bus_type:4;
646 } dw;
647 };
648 union loginfo_type sas_loginfo;
649 char *originator_str = NULL;
650
651 sas_loginfo.loginfo = log_info;
652 if (sas_loginfo.dw.bus_type != 3 /*SAS*/)
653 return;
654
Kashyap, Desaibe9e8cd72009-08-07 19:36:43 +0530655 /* each nexus loss loginfo */
656 if (log_info == 0x31170000)
657 return;
658
Eric Moore635374e2009-03-09 01:21:12 -0600659 /* eat the loginfos associated with task aborts */
660 if (ioc->ignore_loginfos && (log_info == 30050000 || log_info ==
661 0x31140000 || log_info == 0x31130000))
662 return;
663
664 switch (sas_loginfo.dw.originator) {
665 case 0:
666 originator_str = "IOP";
667 break;
668 case 1:
669 originator_str = "PL";
670 break;
671 case 2:
Kashyap, Desai0bdccdb2011-04-07 12:32:49 +0530672 if (!ioc->hide_ir_msg)
673 originator_str = "IR";
674 else
675 originator_str = "WarpDrive";
Eric Moore635374e2009-03-09 01:21:12 -0600676 break;
677 }
678
679 printk(MPT2SAS_WARN_FMT "log_info(0x%08x): originator(%s), "
680 "code(0x%02x), sub_code(0x%04x)\n", ioc->name, log_info,
681 originator_str, sas_loginfo.dw.code,
682 sas_loginfo.dw.subcode);
683}
684
685/**
Eric Moore635374e2009-03-09 01:21:12 -0600686 * _base_display_reply_info -
Kashyap, Desaicef7a122009-09-23 17:27:41 +0530687 * @ioc: per adapter object
Eric Moore635374e2009-03-09 01:21:12 -0600688 * @smid: system request message index
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530689 * @msix_index: MSIX table index supplied by the OS
Eric Moore635374e2009-03-09 01:21:12 -0600690 * @reply: reply message frame(lower 32bit addr)
691 *
692 * Return nothing.
693 */
694static void
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530695_base_display_reply_info(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
Eric Moore635374e2009-03-09 01:21:12 -0600696 u32 reply)
697{
698 MPI2DefaultReply_t *mpi_reply;
699 u16 ioc_status;
700
701 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
702 ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
703#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
704 if ((ioc_status & MPI2_IOCSTATUS_MASK) &&
705 (ioc->logging_level & MPT_DEBUG_REPLY)) {
706 _base_sas_ioc_info(ioc , mpi_reply,
707 mpt2sas_base_get_msg_frame(ioc, smid));
708 }
709#endif
710 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
711 _base_sas_log_info(ioc, le32_to_cpu(mpi_reply->IOCLogInfo));
712}
713
714/**
715 * mpt2sas_base_done - base internal command completion routine
Kashyap, Desaicef7a122009-09-23 17:27:41 +0530716 * @ioc: per adapter object
Eric Moore635374e2009-03-09 01:21:12 -0600717 * @smid: system request message index
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530718 * @msix_index: MSIX table index supplied by the OS
Eric Moore635374e2009-03-09 01:21:12 -0600719 * @reply: reply message frame(lower 32bit addr)
720 *
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530721 * Return 1 meaning mf should be freed from _base_interrupt
722 * 0 means the mf is freed from this function.
Eric Moore635374e2009-03-09 01:21:12 -0600723 */
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530724u8
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530725mpt2sas_base_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
726 u32 reply)
Eric Moore635374e2009-03-09 01:21:12 -0600727{
728 MPI2DefaultReply_t *mpi_reply;
729
730 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
731 if (mpi_reply && mpi_reply->Function == MPI2_FUNCTION_EVENT_ACK)
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530732 return 1;
Eric Moore635374e2009-03-09 01:21:12 -0600733
734 if (ioc->base_cmds.status == MPT2_CMD_NOT_USED)
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530735 return 1;
Eric Moore635374e2009-03-09 01:21:12 -0600736
737 ioc->base_cmds.status |= MPT2_CMD_COMPLETE;
738 if (mpi_reply) {
739 ioc->base_cmds.status |= MPT2_CMD_REPLY_VALID;
740 memcpy(ioc->base_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
741 }
742 ioc->base_cmds.status &= ~MPT2_CMD_PENDING;
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +0530743
Eric Moore635374e2009-03-09 01:21:12 -0600744 complete(&ioc->base_cmds.done);
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530745 return 1;
Eric Moore635374e2009-03-09 01:21:12 -0600746}
747
748/**
749 * _base_async_event - main callback handler for firmware asyn events
Kashyap, Desaicef7a122009-09-23 17:27:41 +0530750 * @ioc: per adapter object
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530751 * @msix_index: MSIX table index supplied by the OS
Eric Moore635374e2009-03-09 01:21:12 -0600752 * @reply: reply message frame(lower 32bit addr)
753 *
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530754 * Return 1 meaning mf should be freed from _base_interrupt
755 * 0 means the mf is freed from this function.
Eric Moore635374e2009-03-09 01:21:12 -0600756 */
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530757static u8
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530758_base_async_event(struct MPT2SAS_ADAPTER *ioc, u8 msix_index, u32 reply)
Eric Moore635374e2009-03-09 01:21:12 -0600759{
760 Mpi2EventNotificationReply_t *mpi_reply;
761 Mpi2EventAckRequest_t *ack_request;
762 u16 smid;
763
764 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
765 if (!mpi_reply)
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530766 return 1;
Eric Moore635374e2009-03-09 01:21:12 -0600767 if (mpi_reply->Function != MPI2_FUNCTION_EVENT_NOTIFICATION)
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530768 return 1;
Eric Moore635374e2009-03-09 01:21:12 -0600769#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
770 _base_display_event_data(ioc, mpi_reply);
771#endif
772 if (!(mpi_reply->AckRequired & MPI2_EVENT_NOTIFICATION_ACK_REQUIRED))
773 goto out;
774 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx);
775 if (!smid) {
776 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
777 ioc->name, __func__);
778 goto out;
779 }
780
781 ack_request = mpt2sas_base_get_msg_frame(ioc, smid);
782 memset(ack_request, 0, sizeof(Mpi2EventAckRequest_t));
783 ack_request->Function = MPI2_FUNCTION_EVENT_ACK;
784 ack_request->Event = mpi_reply->Event;
785 ack_request->EventContext = mpi_reply->EventContext;
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530786 ack_request->VF_ID = 0; /* TODO */
787 ack_request->VP_ID = 0;
788 mpt2sas_base_put_smid_default(ioc, smid);
Eric Moore635374e2009-03-09 01:21:12 -0600789
790 out:
791
792 /* scsih callback handler */
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530793 mpt2sas_scsih_event_callback(ioc, msix_index, reply);
Eric Moore635374e2009-03-09 01:21:12 -0600794
795 /* ctl callback handler */
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530796 mpt2sas_ctl_event_callback(ioc, msix_index, reply);
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530797
798 return 1;
Eric Moore635374e2009-03-09 01:21:12 -0600799}
800
801/**
Kashyap, Desai595bb0b2009-09-14 11:02:48 +0530802 * _base_get_cb_idx - obtain the callback index
803 * @ioc: per adapter object
804 * @smid: system request message index
805 *
806 * Return callback index.
807 */
808static u8
809_base_get_cb_idx(struct MPT2SAS_ADAPTER *ioc, u16 smid)
810{
811 int i;
Kashyap, Desaid5bd3492011-01-04 11:39:20 +0530812 u8 cb_idx;
Kashyap, Desai595bb0b2009-09-14 11:02:48 +0530813
Kashyap, Desaid5bd3492011-01-04 11:39:20 +0530814 if (smid < ioc->hi_priority_smid) {
Kashyap, Desai595bb0b2009-09-14 11:02:48 +0530815 i = smid - 1;
816 cb_idx = ioc->scsi_lookup[i].cb_idx;
Kashyap, Desaid5bd3492011-01-04 11:39:20 +0530817 } else if (smid < ioc->internal_smid) {
818 i = smid - ioc->hi_priority_smid;
819 cb_idx = ioc->hpr_lookup[i].cb_idx;
820 } else if (smid <= ioc->hba_queue_depth) {
821 i = smid - ioc->internal_smid;
822 cb_idx = ioc->internal_lookup[i].cb_idx;
823 } else
824 cb_idx = 0xFF;
Kashyap, Desai595bb0b2009-09-14 11:02:48 +0530825 return cb_idx;
826}
827
828/**
Eric Moore635374e2009-03-09 01:21:12 -0600829 * _base_mask_interrupts - disable interrupts
Kashyap, Desaicef7a122009-09-23 17:27:41 +0530830 * @ioc: per adapter object
Eric Moore635374e2009-03-09 01:21:12 -0600831 *
832 * Disabling ResetIRQ, Reply and Doorbell Interrupts
833 *
834 * Return nothing.
835 */
836static void
837_base_mask_interrupts(struct MPT2SAS_ADAPTER *ioc)
838{
839 u32 him_register;
840
841 ioc->mask_interrupts = 1;
842 him_register = readl(&ioc->chip->HostInterruptMask);
843 him_register |= MPI2_HIM_DIM + MPI2_HIM_RIM + MPI2_HIM_RESET_IRQ_MASK;
844 writel(him_register, &ioc->chip->HostInterruptMask);
845 readl(&ioc->chip->HostInterruptMask);
846}
847
848/**
849 * _base_unmask_interrupts - enable interrupts
Kashyap, Desaicef7a122009-09-23 17:27:41 +0530850 * @ioc: per adapter object
Eric Moore635374e2009-03-09 01:21:12 -0600851 *
852 * Enabling only Reply Interrupts
853 *
854 * Return nothing.
855 */
856static void
857_base_unmask_interrupts(struct MPT2SAS_ADAPTER *ioc)
858{
859 u32 him_register;
860
Eric Moore635374e2009-03-09 01:21:12 -0600861 him_register = readl(&ioc->chip->HostInterruptMask);
862 him_register &= ~MPI2_HIM_RIM;
863 writel(him_register, &ioc->chip->HostInterruptMask);
864 ioc->mask_interrupts = 0;
865}
866
Kashyap, Desai5b768582009-08-20 13:24:31 +0530867union reply_descriptor {
868 u64 word;
869 struct {
870 u32 low;
871 u32 high;
872 } u;
873};
874
Eric Moore635374e2009-03-09 01:21:12 -0600875/**
876 * _base_interrupt - MPT adapter (IOC) specific interrupt handler.
877 * @irq: irq number (not used)
878 * @bus_id: bus identifier cookie == pointer to MPT_ADAPTER structure
879 * @r: pt_regs pointer (not used)
880 *
881 * Return IRQ_HANDLE if processed, else IRQ_NONE.
882 */
883static irqreturn_t
884_base_interrupt(int irq, void *bus_id)
885{
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530886 struct adapter_reply_queue *reply_q = bus_id;
Eric Moore03ea1112009-04-21 15:37:57 -0600887 union reply_descriptor rd;
Kashyap, Desai5b768582009-08-20 13:24:31 +0530888 u32 completed_cmds;
Eric Moore635374e2009-03-09 01:21:12 -0600889 u8 request_desript_type;
890 u16 smid;
891 u8 cb_idx;
892 u32 reply;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530893 u8 msix_index = reply_q->msix_index;
894 struct MPT2SAS_ADAPTER *ioc = reply_q->ioc;
Kashyap, Desai5b768582009-08-20 13:24:31 +0530895 Mpi2ReplyDescriptorsUnion_t *rpf;
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530896 u8 rc;
Eric Moore635374e2009-03-09 01:21:12 -0600897
898 if (ioc->mask_interrupts)
899 return IRQ_NONE;
900
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530901 if (!atomic_add_unless(&reply_q->busy, 1, 1))
902 return IRQ_NONE;
903
904 rpf = &reply_q->reply_post_free[reply_q->reply_post_host_index];
Kashyap, Desai5b768582009-08-20 13:24:31 +0530905 request_desript_type = rpf->Default.ReplyFlags
906 & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530907 if (request_desript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED) {
908 atomic_dec(&reply_q->busy);
Eric Moore635374e2009-03-09 01:21:12 -0600909 return IRQ_NONE;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530910 }
Eric Moore635374e2009-03-09 01:21:12 -0600911
912 completed_cmds = 0;
Kashyap, Desaidd3741d2010-11-13 04:31:14 +0530913 cb_idx = 0xFF;
Eric Moore635374e2009-03-09 01:21:12 -0600914 do {
Kashyap, Desaic97951e2011-06-14 10:54:56 +0530915 rd.word = le64_to_cpu(rpf->Words);
Eric Moore03ea1112009-04-21 15:37:57 -0600916 if (rd.u.low == UINT_MAX || rd.u.high == UINT_MAX)
Eric Moore635374e2009-03-09 01:21:12 -0600917 goto out;
918 reply = 0;
Kashyap, Desai5b768582009-08-20 13:24:31 +0530919 smid = le16_to_cpu(rpf->Default.DescriptorTypeDependent1);
Eric Moore635374e2009-03-09 01:21:12 -0600920 if (request_desript_type ==
921 MPI2_RPY_DESCRIPT_FLAGS_ADDRESS_REPLY) {
Kashyap, Desai5b768582009-08-20 13:24:31 +0530922 reply = le32_to_cpu
923 (rpf->AddressReply.ReplyFrameAddress);
Kashyap, Desaidd3741d2010-11-13 04:31:14 +0530924 if (reply > ioc->reply_dma_max_address ||
925 reply < ioc->reply_dma_min_address)
926 reply = 0;
Eric Moore635374e2009-03-09 01:21:12 -0600927 } else if (request_desript_type ==
928 MPI2_RPY_DESCRIPT_FLAGS_TARGET_COMMAND_BUFFER)
929 goto next;
930 else if (request_desript_type ==
931 MPI2_RPY_DESCRIPT_FLAGS_TARGETASSIST_SUCCESS)
932 goto next;
933 if (smid)
Kashyap, Desai595bb0b2009-09-14 11:02:48 +0530934 cb_idx = _base_get_cb_idx(ioc, smid);
Eric Moore635374e2009-03-09 01:21:12 -0600935 if (smid && cb_idx != 0xFF) {
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530936 rc = mpt_callbacks[cb_idx](ioc, smid, msix_index,
Kashyap, Desai595bb0b2009-09-14 11:02:48 +0530937 reply);
Eric Moore635374e2009-03-09 01:21:12 -0600938 if (reply)
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530939 _base_display_reply_info(ioc, smid, msix_index,
Eric Moore635374e2009-03-09 01:21:12 -0600940 reply);
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530941 if (rc)
942 mpt2sas_base_free_smid(ioc, smid);
Eric Moore635374e2009-03-09 01:21:12 -0600943 }
944 if (!smid)
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530945 _base_async_event(ioc, msix_index, reply);
Eric Moore635374e2009-03-09 01:21:12 -0600946
947 /* reply free queue handling */
948 if (reply) {
949 ioc->reply_free_host_index =
950 (ioc->reply_free_host_index ==
951 (ioc->reply_free_queue_depth - 1)) ?
952 0 : ioc->reply_free_host_index + 1;
953 ioc->reply_free[ioc->reply_free_host_index] =
954 cpu_to_le32(reply);
Kashyap, Desai5b768582009-08-20 13:24:31 +0530955 wmb();
Eric Moore635374e2009-03-09 01:21:12 -0600956 writel(ioc->reply_free_host_index,
957 &ioc->chip->ReplyFreeHostIndex);
Eric Moore635374e2009-03-09 01:21:12 -0600958 }
959
960 next:
Kashyap, Desai5b768582009-08-20 13:24:31 +0530961
Kashyap, Desaic97951e2011-06-14 10:54:56 +0530962 rpf->Words = cpu_to_le64(ULLONG_MAX);
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530963 reply_q->reply_post_host_index =
964 (reply_q->reply_post_host_index ==
Kashyap, Desai5b768582009-08-20 13:24:31 +0530965 (ioc->reply_post_queue_depth - 1)) ? 0 :
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530966 reply_q->reply_post_host_index + 1;
Eric Moore635374e2009-03-09 01:21:12 -0600967 request_desript_type =
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530968 reply_q->reply_post_free[reply_q->reply_post_host_index].
969 Default.ReplyFlags & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
Eric Moore635374e2009-03-09 01:21:12 -0600970 completed_cmds++;
971 if (request_desript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED)
972 goto out;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530973 if (!reply_q->reply_post_host_index)
974 rpf = reply_q->reply_post_free;
Kashyap, Desai5b768582009-08-20 13:24:31 +0530975 else
976 rpf++;
Eric Moore635374e2009-03-09 01:21:12 -0600977 } while (1);
978
979 out:
980
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530981 if (!completed_cmds) {
982 atomic_dec(&reply_q->busy);
Eric Moore635374e2009-03-09 01:21:12 -0600983 return IRQ_NONE;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530984 }
Eric Moore635374e2009-03-09 01:21:12 -0600985 wmb();
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530986 if (ioc->is_warpdrive) {
987 writel(reply_q->reply_post_host_index,
988 ioc->reply_post_host_index[msix_index]);
989 atomic_dec(&reply_q->busy);
990 return IRQ_HANDLED;
991 }
992 writel(reply_q->reply_post_host_index | (msix_index <<
993 MPI2_RPHI_MSIX_INDEX_SHIFT), &ioc->chip->ReplyPostHostIndex);
994 atomic_dec(&reply_q->busy);
Eric Moore635374e2009-03-09 01:21:12 -0600995 return IRQ_HANDLED;
996}
997
998/**
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530999 * _base_is_controller_msix_enabled - is controller support muli-reply queues
1000 * @ioc: per adapter object
1001 *
1002 */
1003static inline int
1004_base_is_controller_msix_enabled(struct MPT2SAS_ADAPTER *ioc)
1005{
1006 return (ioc->facts.IOCCapabilities &
1007 MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX) && ioc->msix_enable;
1008}
1009
1010/**
1011 * mpt2sas_base_flush_reply_queues - flushing the MSIX reply queues
1012 * @ioc: per adapter object
1013 * Context: ISR conext
1014 *
1015 * Called when a Task Management request has completed. We want
1016 * to flush the other reply queues so all the outstanding IO has been
1017 * completed back to OS before we process the TM completetion.
1018 *
1019 * Return nothing.
1020 */
1021void
1022mpt2sas_base_flush_reply_queues(struct MPT2SAS_ADAPTER *ioc)
1023{
1024 struct adapter_reply_queue *reply_q;
1025
1026 /* If MSIX capability is turned off
1027 * then multi-queues are not enabled
1028 */
1029 if (!_base_is_controller_msix_enabled(ioc))
1030 return;
1031
1032 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) {
1033 if (ioc->shost_recovery)
1034 return;
1035 /* TMs are on msix_index == 0 */
1036 if (reply_q->msix_index == 0)
1037 continue;
1038 _base_interrupt(reply_q->vector, (void *)reply_q);
1039 }
1040}
1041
1042/**
Lucas De Marchi25985ed2011-03-30 22:57:33 -03001043 * mpt2sas_base_release_callback_handler - clear interrupt callback handler
Eric Moore635374e2009-03-09 01:21:12 -06001044 * @cb_idx: callback index
1045 *
1046 * Return nothing.
1047 */
1048void
1049mpt2sas_base_release_callback_handler(u8 cb_idx)
1050{
1051 mpt_callbacks[cb_idx] = NULL;
1052}
1053
1054/**
1055 * mpt2sas_base_register_callback_handler - obtain index for the interrupt callback handler
1056 * @cb_func: callback function
1057 *
1058 * Returns cb_func.
1059 */
1060u8
1061mpt2sas_base_register_callback_handler(MPT_CALLBACK cb_func)
1062{
1063 u8 cb_idx;
1064
1065 for (cb_idx = MPT_MAX_CALLBACKS-1; cb_idx; cb_idx--)
1066 if (mpt_callbacks[cb_idx] == NULL)
1067 break;
1068
1069 mpt_callbacks[cb_idx] = cb_func;
1070 return cb_idx;
1071}
1072
1073/**
1074 * mpt2sas_base_initialize_callback_handler - initialize the interrupt callback handler
1075 *
1076 * Return nothing.
1077 */
1078void
1079mpt2sas_base_initialize_callback_handler(void)
1080{
1081 u8 cb_idx;
1082
1083 for (cb_idx = 0; cb_idx < MPT_MAX_CALLBACKS; cb_idx++)
1084 mpt2sas_base_release_callback_handler(cb_idx);
1085}
1086
1087/**
1088 * mpt2sas_base_build_zero_len_sge - build zero length sg entry
1089 * @ioc: per adapter object
1090 * @paddr: virtual address for SGE
1091 *
1092 * Create a zero length scatter gather entry to insure the IOCs hardware has
1093 * something to use if the target device goes brain dead and tries
1094 * to send data even when none is asked for.
1095 *
1096 * Return nothing.
1097 */
1098void
1099mpt2sas_base_build_zero_len_sge(struct MPT2SAS_ADAPTER *ioc, void *paddr)
1100{
1101 u32 flags_length = (u32)((MPI2_SGE_FLAGS_LAST_ELEMENT |
1102 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST |
1103 MPI2_SGE_FLAGS_SIMPLE_ELEMENT) <<
1104 MPI2_SGE_FLAGS_SHIFT);
1105 ioc->base_add_sg_single(paddr, flags_length, -1);
1106}
1107
1108/**
1109 * _base_add_sg_single_32 - Place a simple 32 bit SGE at address pAddr.
1110 * @paddr: virtual address for SGE
1111 * @flags_length: SGE flags and data transfer length
1112 * @dma_addr: Physical address
1113 *
1114 * Return nothing.
1115 */
1116static void
1117_base_add_sg_single_32(void *paddr, u32 flags_length, dma_addr_t dma_addr)
1118{
1119 Mpi2SGESimple32_t *sgel = paddr;
1120
1121 flags_length |= (MPI2_SGE_FLAGS_32_BIT_ADDRESSING |
1122 MPI2_SGE_FLAGS_SYSTEM_ADDRESS) << MPI2_SGE_FLAGS_SHIFT;
1123 sgel->FlagsLength = cpu_to_le32(flags_length);
1124 sgel->Address = cpu_to_le32(dma_addr);
1125}
1126
1127
1128/**
1129 * _base_add_sg_single_64 - Place a simple 64 bit SGE at address pAddr.
1130 * @paddr: virtual address for SGE
1131 * @flags_length: SGE flags and data transfer length
1132 * @dma_addr: Physical address
1133 *
1134 * Return nothing.
1135 */
1136static void
1137_base_add_sg_single_64(void *paddr, u32 flags_length, dma_addr_t dma_addr)
1138{
1139 Mpi2SGESimple64_t *sgel = paddr;
1140
1141 flags_length |= (MPI2_SGE_FLAGS_64_BIT_ADDRESSING |
1142 MPI2_SGE_FLAGS_SYSTEM_ADDRESS) << MPI2_SGE_FLAGS_SHIFT;
1143 sgel->FlagsLength = cpu_to_le32(flags_length);
1144 sgel->Address = cpu_to_le64(dma_addr);
1145}
1146
1147#define convert_to_kb(x) ((x) << (PAGE_SHIFT - 10))
1148
1149/**
1150 * _base_config_dma_addressing - set dma addressing
1151 * @ioc: per adapter object
1152 * @pdev: PCI device struct
1153 *
1154 * Returns 0 for success, non-zero for failure.
1155 */
1156static int
1157_base_config_dma_addressing(struct MPT2SAS_ADAPTER *ioc, struct pci_dev *pdev)
1158{
1159 struct sysinfo s;
1160 char *desc = NULL;
1161
1162 if (sizeof(dma_addr_t) > 4) {
1163 const uint64_t required_mask =
1164 dma_get_required_mask(&pdev->dev);
Yang Hongyange9304382009-04-13 14:40:14 -07001165 if ((required_mask > DMA_BIT_MASK(32)) && !pci_set_dma_mask(pdev,
1166 DMA_BIT_MASK(64)) && !pci_set_consistent_dma_mask(pdev,
1167 DMA_BIT_MASK(64))) {
Eric Moore635374e2009-03-09 01:21:12 -06001168 ioc->base_add_sg_single = &_base_add_sg_single_64;
1169 ioc->sge_size = sizeof(Mpi2SGESimple64_t);
1170 desc = "64";
1171 goto out;
1172 }
1173 }
1174
Yang Hongyange9304382009-04-13 14:40:14 -07001175 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
1176 && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
Eric Moore635374e2009-03-09 01:21:12 -06001177 ioc->base_add_sg_single = &_base_add_sg_single_32;
1178 ioc->sge_size = sizeof(Mpi2SGESimple32_t);
1179 desc = "32";
1180 } else
1181 return -ENODEV;
1182
1183 out:
1184 si_meminfo(&s);
1185 printk(MPT2SAS_INFO_FMT "%s BIT PCI BUS DMA ADDRESSING SUPPORTED, "
1186 "total mem (%ld kB)\n", ioc->name, desc, convert_to_kb(s.totalram));
1187
1188 return 0;
1189}
1190
1191/**
Eric Moore635374e2009-03-09 01:21:12 -06001192 * _base_check_enable_msix - checks MSIX capabable.
1193 * @ioc: per adapter object
1194 *
1195 * Check to see if card is capable of MSIX, and set number
Lucas De Marchi25985ed2011-03-30 22:57:33 -03001196 * of available msix vectors
Eric Moore635374e2009-03-09 01:21:12 -06001197 */
1198static int
1199_base_check_enable_msix(struct MPT2SAS_ADAPTER *ioc)
1200{
1201 int base;
1202 u16 message_control;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301203
Eric Moore635374e2009-03-09 01:21:12 -06001204
1205 base = pci_find_capability(ioc->pdev, PCI_CAP_ID_MSIX);
1206 if (!base) {
1207 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "msix not "
1208 "supported\n", ioc->name));
1209 return -EINVAL;
1210 }
1211
1212 /* get msix vector count */
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301213 /* NUMA_IO not supported for older controllers */
1214 if (ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2004 ||
1215 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2008 ||
1216 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2108_1 ||
1217 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2108_2 ||
1218 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2108_3 ||
1219 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2116_1 ||
1220 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2116_2)
1221 ioc->msix_vector_count = 1;
1222 else {
1223 pci_read_config_word(ioc->pdev, base + 2, &message_control);
1224 ioc->msix_vector_count = (message_control & 0x3FF) + 1;
1225 }
Eric Moore635374e2009-03-09 01:21:12 -06001226 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "msix is supported, "
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301227 "vector_count(%d)\n", ioc->name, ioc->msix_vector_count));
1228
Eric Moore635374e2009-03-09 01:21:12 -06001229 return 0;
1230}
1231
1232/**
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301233 * _base_free_irq - free irq
1234 * @ioc: per adapter object
1235 *
1236 * Freeing respective reply_queue from the list.
1237 */
1238static void
1239_base_free_irq(struct MPT2SAS_ADAPTER *ioc)
1240{
1241 struct adapter_reply_queue *reply_q, *next;
1242
1243 if (list_empty(&ioc->reply_queue_list))
1244 return;
1245
1246 list_for_each_entry_safe(reply_q, next, &ioc->reply_queue_list, list) {
1247 list_del(&reply_q->list);
1248 synchronize_irq(reply_q->vector);
1249 free_irq(reply_q->vector, reply_q);
1250 kfree(reply_q);
1251 }
1252}
1253
1254/**
1255 * _base_request_irq - request irq
1256 * @ioc: per adapter object
1257 * @index: msix index into vector table
1258 * @vector: irq vector
1259 *
1260 * Inserting respective reply_queue into the list.
1261 */
1262static int
1263_base_request_irq(struct MPT2SAS_ADAPTER *ioc, u8 index, u32 vector)
1264{
1265 struct adapter_reply_queue *reply_q;
1266 int r;
1267
1268 reply_q = kzalloc(sizeof(struct adapter_reply_queue), GFP_KERNEL);
1269 if (!reply_q) {
1270 printk(MPT2SAS_ERR_FMT "unable to allocate memory %d!\n",
1271 ioc->name, (int)sizeof(struct adapter_reply_queue));
1272 return -ENOMEM;
1273 }
1274 reply_q->ioc = ioc;
1275 reply_q->msix_index = index;
1276 reply_q->vector = vector;
1277 atomic_set(&reply_q->busy, 0);
1278 if (ioc->msix_enable)
1279 snprintf(reply_q->name, MPT_NAME_LENGTH, "%s%d-msix%d",
1280 MPT2SAS_DRIVER_NAME, ioc->id, index);
1281 else
1282 snprintf(reply_q->name, MPT_NAME_LENGTH, "%s%d",
1283 MPT2SAS_DRIVER_NAME, ioc->id);
1284 r = request_irq(vector, _base_interrupt, IRQF_SHARED, reply_q->name,
1285 reply_q);
1286 if (r) {
1287 printk(MPT2SAS_ERR_FMT "unable to allocate interrupt %d!\n",
1288 reply_q->name, vector);
1289 kfree(reply_q);
1290 return -EBUSY;
1291 }
1292
1293 INIT_LIST_HEAD(&reply_q->list);
1294 list_add_tail(&reply_q->list, &ioc->reply_queue_list);
1295 return 0;
1296}
1297
1298/**
1299 * _base_assign_reply_queues - assigning msix index for each cpu
1300 * @ioc: per adapter object
1301 *
1302 * The enduser would need to set the affinity via /proc/irq/#/smp_affinity
1303 *
1304 * It would nice if we could call irq_set_affinity, however it is not
1305 * an exported symbol
1306 */
1307static void
1308_base_assign_reply_queues(struct MPT2SAS_ADAPTER *ioc)
1309{
1310 struct adapter_reply_queue *reply_q;
1311 int cpu_id;
1312 int cpu_grouping, loop, grouping, grouping_mod;
1313
1314 if (!_base_is_controller_msix_enabled(ioc))
1315 return;
1316
1317 memset(ioc->cpu_msix_table, 0, ioc->cpu_msix_table_sz);
1318 /* when there are more cpus than available msix vectors,
1319 * then group cpus togeather on same irq
1320 */
1321 if (ioc->cpu_count > ioc->msix_vector_count) {
1322 grouping = ioc->cpu_count / ioc->msix_vector_count;
1323 grouping_mod = ioc->cpu_count % ioc->msix_vector_count;
1324 if (grouping < 2 || (grouping == 2 && !grouping_mod))
1325 cpu_grouping = 2;
1326 else if (grouping < 4 || (grouping == 4 && !grouping_mod))
1327 cpu_grouping = 4;
1328 else if (grouping < 8 || (grouping == 8 && !grouping_mod))
1329 cpu_grouping = 8;
1330 else
1331 cpu_grouping = 16;
1332 } else
1333 cpu_grouping = 0;
1334
1335 loop = 0;
1336 reply_q = list_entry(ioc->reply_queue_list.next,
1337 struct adapter_reply_queue, list);
1338 for_each_online_cpu(cpu_id) {
1339 if (!cpu_grouping) {
1340 ioc->cpu_msix_table[cpu_id] = reply_q->msix_index;
1341 reply_q = list_entry(reply_q->list.next,
1342 struct adapter_reply_queue, list);
1343 } else {
1344 if (loop < cpu_grouping) {
1345 ioc->cpu_msix_table[cpu_id] =
1346 reply_q->msix_index;
1347 loop++;
1348 } else {
1349 reply_q = list_entry(reply_q->list.next,
1350 struct adapter_reply_queue, list);
1351 ioc->cpu_msix_table[cpu_id] =
1352 reply_q->msix_index;
1353 loop = 1;
1354 }
1355 }
1356 }
1357}
1358
1359/**
Eric Moore635374e2009-03-09 01:21:12 -06001360 * _base_disable_msix - disables msix
1361 * @ioc: per adapter object
1362 *
1363 */
1364static void
1365_base_disable_msix(struct MPT2SAS_ADAPTER *ioc)
1366{
1367 if (ioc->msix_enable) {
1368 pci_disable_msix(ioc->pdev);
Eric Moore635374e2009-03-09 01:21:12 -06001369 ioc->msix_enable = 0;
1370 }
1371}
1372
1373/**
1374 * _base_enable_msix - enables msix, failback to io_apic
1375 * @ioc: per adapter object
1376 *
1377 */
1378static int
1379_base_enable_msix(struct MPT2SAS_ADAPTER *ioc)
1380{
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301381 struct msix_entry *entries, *a;
Eric Moore635374e2009-03-09 01:21:12 -06001382 int r;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301383 int i;
Eric Moore635374e2009-03-09 01:21:12 -06001384 u8 try_msix = 0;
1385
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301386 INIT_LIST_HEAD(&ioc->reply_queue_list);
1387
Eric Moore635374e2009-03-09 01:21:12 -06001388 if (msix_disable == -1 || msix_disable == 0)
1389 try_msix = 1;
1390
1391 if (!try_msix)
1392 goto try_ioapic;
1393
1394 if (_base_check_enable_msix(ioc) != 0)
1395 goto try_ioapic;
1396
Roland Dreier2f73b9a2011-11-30 16:30:33 -08001397 ioc->reply_queue_count = min_t(int, ioc->cpu_count,
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301398 ioc->msix_vector_count);
1399
1400 entries = kcalloc(ioc->reply_queue_count, sizeof(struct msix_entry),
1401 GFP_KERNEL);
1402 if (!entries) {
1403 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "kcalloc "
1404 "failed @ at %s:%d/%s() !!!\n", ioc->name, __FILE__,
1405 __LINE__, __func__));
Eric Moore635374e2009-03-09 01:21:12 -06001406 goto try_ioapic;
1407 }
1408
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301409 for (i = 0, a = entries; i < ioc->reply_queue_count; i++, a++)
1410 a->entry = i;
1411
1412 r = pci_enable_msix(ioc->pdev, entries, ioc->reply_queue_count);
Eric Moore635374e2009-03-09 01:21:12 -06001413 if (r) {
1414 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "pci_enable_msix "
1415 "failed (r=%d) !!!\n", ioc->name, r));
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301416 kfree(entries);
Eric Moore635374e2009-03-09 01:21:12 -06001417 goto try_ioapic;
1418 }
1419
Eric Moore635374e2009-03-09 01:21:12 -06001420 ioc->msix_enable = 1;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301421 for (i = 0, a = entries; i < ioc->reply_queue_count; i++, a++) {
1422 r = _base_request_irq(ioc, i, a->vector);
1423 if (r) {
1424 _base_free_irq(ioc);
1425 _base_disable_msix(ioc);
1426 kfree(entries);
1427 goto try_ioapic;
1428 }
1429 }
1430
1431 kfree(entries);
Eric Moore635374e2009-03-09 01:21:12 -06001432 return 0;
1433
1434/* failback to io_apic interrupt routing */
1435 try_ioapic:
1436
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301437 r = _base_request_irq(ioc, 0, ioc->pdev->irq);
Eric Moore635374e2009-03-09 01:21:12 -06001438
Eric Moore635374e2009-03-09 01:21:12 -06001439 return r;
1440}
1441
1442/**
1443 * mpt2sas_base_map_resources - map in controller resources (io/irq/memap)
1444 * @ioc: per adapter object
1445 *
1446 * Returns 0 for success, non-zero for failure.
1447 */
1448int
1449mpt2sas_base_map_resources(struct MPT2SAS_ADAPTER *ioc)
1450{
1451 struct pci_dev *pdev = ioc->pdev;
1452 u32 memap_sz;
1453 u32 pio_sz;
1454 int i, r = 0;
Kashyap, Desai6846e752009-12-16 18:51:45 +05301455 u64 pio_chip = 0;
1456 u64 chip_phys = 0;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301457 struct adapter_reply_queue *reply_q;
Eric Moore635374e2009-03-09 01:21:12 -06001458
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05301459 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n",
Eric Moore635374e2009-03-09 01:21:12 -06001460 ioc->name, __func__));
1461
1462 ioc->bars = pci_select_bars(pdev, IORESOURCE_MEM);
1463 if (pci_enable_device_mem(pdev)) {
1464 printk(MPT2SAS_WARN_FMT "pci_enable_device_mem: "
1465 "failed\n", ioc->name);
1466 return -ENODEV;
1467 }
1468
1469
1470 if (pci_request_selected_regions(pdev, ioc->bars,
1471 MPT2SAS_DRIVER_NAME)) {
1472 printk(MPT2SAS_WARN_FMT "pci_request_selected_regions: "
1473 "failed\n", ioc->name);
1474 r = -ENODEV;
1475 goto out_fail;
1476 }
1477
Kashyap, Desaief7c80c2010-04-05 14:20:07 +05301478 /* AER (Advanced Error Reporting) hooks */
1479 pci_enable_pcie_error_reporting(pdev);
1480
Eric Moore635374e2009-03-09 01:21:12 -06001481 pci_set_master(pdev);
1482
1483 if (_base_config_dma_addressing(ioc, pdev) != 0) {
1484 printk(MPT2SAS_WARN_FMT "no suitable DMA mask for %s\n",
1485 ioc->name, pci_name(pdev));
1486 r = -ENODEV;
1487 goto out_fail;
1488 }
1489
1490 for (i = 0, memap_sz = 0, pio_sz = 0 ; i < DEVICE_COUNT_RESOURCE; i++) {
Richard A Laryfc193172010-03-12 15:27:06 -08001491 if (pci_resource_flags(pdev, i) & IORESOURCE_IO) {
Eric Moore635374e2009-03-09 01:21:12 -06001492 if (pio_sz)
1493 continue;
Kashyap, Desai6846e752009-12-16 18:51:45 +05301494 pio_chip = (u64)pci_resource_start(pdev, i);
Eric Moore635374e2009-03-09 01:21:12 -06001495 pio_sz = pci_resource_len(pdev, i);
1496 } else {
1497 if (memap_sz)
1498 continue;
Richard A Laryfc193172010-03-12 15:27:06 -08001499 /* verify memory resource is valid before using */
1500 if (pci_resource_flags(pdev, i) & IORESOURCE_MEM) {
1501 ioc->chip_phys = pci_resource_start(pdev, i);
1502 chip_phys = (u64)ioc->chip_phys;
1503 memap_sz = pci_resource_len(pdev, i);
1504 ioc->chip = ioremap(ioc->chip_phys, memap_sz);
1505 if (ioc->chip == NULL) {
1506 printk(MPT2SAS_ERR_FMT "unable to map "
1507 "adapter memory!\n", ioc->name);
1508 r = -EINVAL;
1509 goto out_fail;
1510 }
Eric Moore635374e2009-03-09 01:21:12 -06001511 }
1512 }
1513 }
1514
Eric Moore635374e2009-03-09 01:21:12 -06001515 _base_mask_interrupts(ioc);
1516 r = _base_enable_msix(ioc);
1517 if (r)
1518 goto out_fail;
1519
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301520 list_for_each_entry(reply_q, &ioc->reply_queue_list, list)
1521 printk(MPT2SAS_INFO_FMT "%s: IRQ %d\n",
1522 reply_q->name, ((ioc->msix_enable) ? "PCI-MSI-X enabled" :
1523 "IO-APIC enabled"), reply_q->vector);
1524
Kashyap, Desai6846e752009-12-16 18:51:45 +05301525 printk(MPT2SAS_INFO_FMT "iomem(0x%016llx), mapped(0x%p), size(%d)\n",
1526 ioc->name, (unsigned long long)chip_phys, ioc->chip, memap_sz);
1527 printk(MPT2SAS_INFO_FMT "ioport(0x%016llx), size(%d)\n",
1528 ioc->name, (unsigned long long)pio_chip, pio_sz);
Eric Moore635374e2009-03-09 01:21:12 -06001529
Eric Moore3cb54692010-07-08 14:44:34 -06001530 /* Save PCI configuration state for recovery from PCI AER/EEH errors */
1531 pci_save_state(pdev);
1532
Eric Moore635374e2009-03-09 01:21:12 -06001533 return 0;
1534
1535 out_fail:
1536 if (ioc->chip_phys)
1537 iounmap(ioc->chip);
1538 ioc->chip_phys = 0;
Eric Moore635374e2009-03-09 01:21:12 -06001539 pci_release_selected_regions(ioc->pdev, ioc->bars);
Kashyap, Desaief7c80c2010-04-05 14:20:07 +05301540 pci_disable_pcie_error_reporting(pdev);
Eric Moore635374e2009-03-09 01:21:12 -06001541 pci_disable_device(pdev);
Eric Moore635374e2009-03-09 01:21:12 -06001542 return r;
1543}
1544
1545/**
Eric Moore635374e2009-03-09 01:21:12 -06001546 * mpt2sas_base_get_msg_frame - obtain request mf pointer
1547 * @ioc: per adapter object
1548 * @smid: system request message index(smid zero is invalid)
1549 *
1550 * Returns virt pointer to message frame.
1551 */
1552void *
1553mpt2sas_base_get_msg_frame(struct MPT2SAS_ADAPTER *ioc, u16 smid)
1554{
1555 return (void *)(ioc->request + (smid * ioc->request_sz));
1556}
1557
1558/**
1559 * mpt2sas_base_get_sense_buffer - obtain a sense buffer assigned to a mf request
1560 * @ioc: per adapter object
1561 * @smid: system request message index
1562 *
1563 * Returns virt pointer to sense buffer.
1564 */
1565void *
1566mpt2sas_base_get_sense_buffer(struct MPT2SAS_ADAPTER *ioc, u16 smid)
1567{
1568 return (void *)(ioc->sense + ((smid - 1) * SCSI_SENSE_BUFFERSIZE));
1569}
1570
1571/**
1572 * mpt2sas_base_get_sense_buffer_dma - obtain a sense buffer assigned to a mf request
1573 * @ioc: per adapter object
1574 * @smid: system request message index
1575 *
Kashyap, Desaiec9472c2009-09-23 17:34:13 +05301576 * Returns phys pointer to the low 32bit address of the sense buffer.
Eric Moore635374e2009-03-09 01:21:12 -06001577 */
Kashyap, Desaiec9472c2009-09-23 17:34:13 +05301578__le32
Eric Moore635374e2009-03-09 01:21:12 -06001579mpt2sas_base_get_sense_buffer_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid)
1580{
Kashyap, Desaiec9472c2009-09-23 17:34:13 +05301581 return cpu_to_le32(ioc->sense_dma +
1582 ((smid - 1) * SCSI_SENSE_BUFFERSIZE));
Eric Moore635374e2009-03-09 01:21:12 -06001583}
1584
1585/**
1586 * mpt2sas_base_get_reply_virt_addr - obtain reply frames virt address
1587 * @ioc: per adapter object
1588 * @phys_addr: lower 32 physical addr of the reply
1589 *
1590 * Converts 32bit lower physical addr into a virt address.
1591 */
1592void *
1593mpt2sas_base_get_reply_virt_addr(struct MPT2SAS_ADAPTER *ioc, u32 phys_addr)
1594{
1595 if (!phys_addr)
1596 return NULL;
1597 return ioc->reply + (phys_addr - (u32)ioc->reply_dma);
1598}
1599
1600/**
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05301601 * mpt2sas_base_get_smid - obtain a free smid from internal queue
Eric Moore635374e2009-03-09 01:21:12 -06001602 * @ioc: per adapter object
1603 * @cb_idx: callback index
1604 *
1605 * Returns smid (zero is invalid)
1606 */
1607u16
1608mpt2sas_base_get_smid(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx)
1609{
1610 unsigned long flags;
1611 struct request_tracker *request;
1612 u16 smid;
1613
1614 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05301615 if (list_empty(&ioc->internal_free_list)) {
1616 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1617 printk(MPT2SAS_ERR_FMT "%s: smid not available\n",
1618 ioc->name, __func__);
1619 return 0;
1620 }
1621
1622 request = list_entry(ioc->internal_free_list.next,
1623 struct request_tracker, tracker_list);
1624 request->cb_idx = cb_idx;
1625 smid = request->smid;
1626 list_del(&request->tracker_list);
1627 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1628 return smid;
1629}
1630
1631/**
1632 * mpt2sas_base_get_smid_scsiio - obtain a free smid from scsiio queue
1633 * @ioc: per adapter object
1634 * @cb_idx: callback index
1635 * @scmd: pointer to scsi command object
1636 *
1637 * Returns smid (zero is invalid)
1638 */
1639u16
1640mpt2sas_base_get_smid_scsiio(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx,
1641 struct scsi_cmnd *scmd)
1642{
1643 unsigned long flags;
Kashyap, Desaid5bd3492011-01-04 11:39:20 +05301644 struct scsiio_tracker *request;
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05301645 u16 smid;
1646
1647 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
Eric Moore635374e2009-03-09 01:21:12 -06001648 if (list_empty(&ioc->free_list)) {
1649 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1650 printk(MPT2SAS_ERR_FMT "%s: smid not available\n",
1651 ioc->name, __func__);
1652 return 0;
1653 }
1654
1655 request = list_entry(ioc->free_list.next,
Kashyap, Desaid5bd3492011-01-04 11:39:20 +05301656 struct scsiio_tracker, tracker_list);
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05301657 request->scmd = scmd;
1658 request->cb_idx = cb_idx;
1659 smid = request->smid;
1660 list_del(&request->tracker_list);
1661 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1662 return smid;
1663}
1664
1665/**
1666 * mpt2sas_base_get_smid_hpr - obtain a free smid from hi-priority queue
1667 * @ioc: per adapter object
1668 * @cb_idx: callback index
1669 *
1670 * Returns smid (zero is invalid)
1671 */
1672u16
1673mpt2sas_base_get_smid_hpr(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx)
1674{
1675 unsigned long flags;
1676 struct request_tracker *request;
1677 u16 smid;
1678
1679 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1680 if (list_empty(&ioc->hpr_free_list)) {
1681 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1682 return 0;
1683 }
1684
1685 request = list_entry(ioc->hpr_free_list.next,
1686 struct request_tracker, tracker_list);
Eric Moore635374e2009-03-09 01:21:12 -06001687 request->cb_idx = cb_idx;
1688 smid = request->smid;
1689 list_del(&request->tracker_list);
1690 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1691 return smid;
1692}
1693
1694
1695/**
1696 * mpt2sas_base_free_smid - put smid back on free_list
1697 * @ioc: per adapter object
1698 * @smid: system request message index
1699 *
1700 * Return nothing.
1701 */
1702void
1703mpt2sas_base_free_smid(struct MPT2SAS_ADAPTER *ioc, u16 smid)
1704{
1705 unsigned long flags;
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05301706 int i;
Kashyap, Desai35f805b2010-11-13 04:34:06 +05301707 struct chain_tracker *chain_req, *next;
Eric Moore635374e2009-03-09 01:21:12 -06001708
1709 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
Kashyap, Desaid5bd3492011-01-04 11:39:20 +05301710 if (smid < ioc->hi_priority_smid) {
1711 /* scsiio queue */
1712 i = smid - 1;
1713 if (!list_empty(&ioc->scsi_lookup[i].chain_list)) {
1714 list_for_each_entry_safe(chain_req, next,
1715 &ioc->scsi_lookup[i].chain_list, tracker_list) {
1716 list_del_init(&chain_req->tracker_list);
1717 list_add_tail(&chain_req->tracker_list,
1718 &ioc->free_chain_list);
1719 }
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05301720 }
Kashyap, Desaid5bd3492011-01-04 11:39:20 +05301721 ioc->scsi_lookup[i].cb_idx = 0xFF;
1722 ioc->scsi_lookup[i].scmd = NULL;
Kashyap, Desai0bdccdb2011-04-07 12:32:49 +05301723 ioc->scsi_lookup[i].direct_io = 0;
Kashyap, Desaid5bd3492011-01-04 11:39:20 +05301724 list_add_tail(&ioc->scsi_lookup[i].tracker_list,
1725 &ioc->free_list);
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05301726 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05301727
Kashyap, Desaid5bd3492011-01-04 11:39:20 +05301728 /*
1729 * See _wait_for_commands_to_complete() call with regards
1730 * to this code.
1731 */
1732 if (ioc->shost_recovery && ioc->pending_io_count) {
1733 if (ioc->pending_io_count == 1)
1734 wake_up(&ioc->reset_wq);
1735 ioc->pending_io_count--;
Kashyap, Desai35f805b2010-11-13 04:34:06 +05301736 }
Kashyap, Desaid5bd3492011-01-04 11:39:20 +05301737 return;
1738 } else if (smid < ioc->internal_smid) {
1739 /* hi-priority */
1740 i = smid - ioc->hi_priority_smid;
1741 ioc->hpr_lookup[i].cb_idx = 0xFF;
1742 list_add_tail(&ioc->hpr_lookup[i].tracker_list,
1743 &ioc->hpr_free_list);
1744 } else if (smid <= ioc->hba_queue_depth) {
1745 /* internal queue */
1746 i = smid - ioc->internal_smid;
1747 ioc->internal_lookup[i].cb_idx = 0xFF;
1748 list_add_tail(&ioc->internal_lookup[i].tracker_list,
1749 &ioc->internal_free_list);
Kashyap, Desai35f805b2010-11-13 04:34:06 +05301750 }
Eric Moore635374e2009-03-09 01:21:12 -06001751 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
Eric Moore635374e2009-03-09 01:21:12 -06001752}
1753
1754/**
1755 * _base_writeq - 64 bit write to MMIO
1756 * @ioc: per adapter object
1757 * @b: data payload
1758 * @addr: address in MMIO space
1759 * @writeq_lock: spin lock
1760 *
1761 * Glue for handling an atomic 64 bit word to MMIO. This special handling takes
1762 * care of 32 bit environment where its not quarenteed to send the entire word
1763 * in one transfer.
1764 */
1765#ifndef writeq
1766static inline void _base_writeq(__u64 b, volatile void __iomem *addr,
1767 spinlock_t *writeq_lock)
1768{
1769 unsigned long flags;
1770 __u64 data_out = cpu_to_le64(b);
1771
1772 spin_lock_irqsave(writeq_lock, flags);
1773 writel((u32)(data_out), addr);
1774 writel((u32)(data_out >> 32), (addr + 4));
1775 spin_unlock_irqrestore(writeq_lock, flags);
1776}
1777#else
1778static inline void _base_writeq(__u64 b, volatile void __iomem *addr,
1779 spinlock_t *writeq_lock)
1780{
1781 writeq(cpu_to_le64(b), addr);
1782}
1783#endif
1784
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301785static inline u8
1786_base_get_msix_index(struct MPT2SAS_ADAPTER *ioc)
1787{
1788 return ioc->cpu_msix_table[smp_processor_id()];
1789}
1790
Eric Moore635374e2009-03-09 01:21:12 -06001791/**
1792 * mpt2sas_base_put_smid_scsi_io - send SCSI_IO request to firmware
1793 * @ioc: per adapter object
1794 * @smid: system request message index
Eric Moore635374e2009-03-09 01:21:12 -06001795 * @handle: device handle
1796 *
1797 * Return nothing.
1798 */
1799void
Kashyap, Desai7b936b02009-09-25 11:44:41 +05301800mpt2sas_base_put_smid_scsi_io(struct MPT2SAS_ADAPTER *ioc, u16 smid, u16 handle)
Eric Moore635374e2009-03-09 01:21:12 -06001801{
1802 Mpi2RequestDescriptorUnion_t descriptor;
1803 u64 *request = (u64 *)&descriptor;
1804
1805
1806 descriptor.SCSIIO.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301807 descriptor.SCSIIO.MSIxIndex = _base_get_msix_index(ioc);
Eric Moore635374e2009-03-09 01:21:12 -06001808 descriptor.SCSIIO.SMID = cpu_to_le16(smid);
1809 descriptor.SCSIIO.DevHandle = cpu_to_le16(handle);
1810 descriptor.SCSIIO.LMID = 0;
1811 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
1812 &ioc->scsi_lookup_lock);
1813}
1814
1815
1816/**
Lucas De Marchi25985ed2011-03-30 22:57:33 -03001817 * mpt2sas_base_put_smid_hi_priority - send Task Management request to firmware
Eric Moore635374e2009-03-09 01:21:12 -06001818 * @ioc: per adapter object
1819 * @smid: system request message index
Eric Moore635374e2009-03-09 01:21:12 -06001820 *
1821 * Return nothing.
1822 */
1823void
Kashyap, Desai7b936b02009-09-25 11:44:41 +05301824mpt2sas_base_put_smid_hi_priority(struct MPT2SAS_ADAPTER *ioc, u16 smid)
Eric Moore635374e2009-03-09 01:21:12 -06001825{
1826 Mpi2RequestDescriptorUnion_t descriptor;
1827 u64 *request = (u64 *)&descriptor;
1828
1829 descriptor.HighPriority.RequestFlags =
1830 MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301831 descriptor.HighPriority.MSIxIndex = 0;
Eric Moore635374e2009-03-09 01:21:12 -06001832 descriptor.HighPriority.SMID = cpu_to_le16(smid);
1833 descriptor.HighPriority.LMID = 0;
1834 descriptor.HighPriority.Reserved1 = 0;
1835 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
1836 &ioc->scsi_lookup_lock);
1837}
1838
1839/**
1840 * mpt2sas_base_put_smid_default - Default, primarily used for config pages
1841 * @ioc: per adapter object
1842 * @smid: system request message index
Eric Moore635374e2009-03-09 01:21:12 -06001843 *
1844 * Return nothing.
1845 */
1846void
Kashyap, Desai7b936b02009-09-25 11:44:41 +05301847mpt2sas_base_put_smid_default(struct MPT2SAS_ADAPTER *ioc, u16 smid)
Eric Moore635374e2009-03-09 01:21:12 -06001848{
1849 Mpi2RequestDescriptorUnion_t descriptor;
1850 u64 *request = (u64 *)&descriptor;
1851
1852 descriptor.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301853 descriptor.Default.MSIxIndex = _base_get_msix_index(ioc);
Eric Moore635374e2009-03-09 01:21:12 -06001854 descriptor.Default.SMID = cpu_to_le16(smid);
1855 descriptor.Default.LMID = 0;
1856 descriptor.Default.DescriptorTypeDependent = 0;
1857 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
1858 &ioc->scsi_lookup_lock);
1859}
1860
1861/**
1862 * mpt2sas_base_put_smid_target_assist - send Target Assist/Status to firmware
1863 * @ioc: per adapter object
1864 * @smid: system request message index
Eric Moore635374e2009-03-09 01:21:12 -06001865 * @io_index: value used to track the IO
1866 *
1867 * Return nothing.
1868 */
1869void
1870mpt2sas_base_put_smid_target_assist(struct MPT2SAS_ADAPTER *ioc, u16 smid,
Kashyap, Desai7b936b02009-09-25 11:44:41 +05301871 u16 io_index)
Eric Moore635374e2009-03-09 01:21:12 -06001872{
1873 Mpi2RequestDescriptorUnion_t descriptor;
1874 u64 *request = (u64 *)&descriptor;
1875
1876 descriptor.SCSITarget.RequestFlags =
1877 MPI2_REQ_DESCRIPT_FLAGS_SCSI_TARGET;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301878 descriptor.SCSITarget.MSIxIndex = _base_get_msix_index(ioc);
Eric Moore635374e2009-03-09 01:21:12 -06001879 descriptor.SCSITarget.SMID = cpu_to_le16(smid);
1880 descriptor.SCSITarget.LMID = 0;
1881 descriptor.SCSITarget.IoIndex = cpu_to_le16(io_index);
1882 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
1883 &ioc->scsi_lookup_lock);
1884}
1885
1886/**
Eric Mooref0f9cc12009-04-21 15:40:48 -06001887 * _base_display_dell_branding - Disply branding string
1888 * @ioc: per adapter object
1889 *
1890 * Return nothing.
1891 */
1892static void
1893_base_display_dell_branding(struct MPT2SAS_ADAPTER *ioc)
1894{
1895 char dell_branding[MPT2SAS_DELL_BRANDING_SIZE];
1896
1897 if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_DELL)
1898 return;
1899
1900 memset(dell_branding, 0, MPT2SAS_DELL_BRANDING_SIZE);
1901 switch (ioc->pdev->subsystem_device) {
1902 case MPT2SAS_DELL_6GBPS_SAS_HBA_SSDID:
1903 strncpy(dell_branding, MPT2SAS_DELL_6GBPS_SAS_HBA_BRANDING,
1904 MPT2SAS_DELL_BRANDING_SIZE - 1);
1905 break;
1906 case MPT2SAS_DELL_PERC_H200_ADAPTER_SSDID:
1907 strncpy(dell_branding, MPT2SAS_DELL_PERC_H200_ADAPTER_BRANDING,
1908 MPT2SAS_DELL_BRANDING_SIZE - 1);
1909 break;
1910 case MPT2SAS_DELL_PERC_H200_INTEGRATED_SSDID:
1911 strncpy(dell_branding,
1912 MPT2SAS_DELL_PERC_H200_INTEGRATED_BRANDING,
1913 MPT2SAS_DELL_BRANDING_SIZE - 1);
1914 break;
1915 case MPT2SAS_DELL_PERC_H200_MODULAR_SSDID:
1916 strncpy(dell_branding,
1917 MPT2SAS_DELL_PERC_H200_MODULAR_BRANDING,
1918 MPT2SAS_DELL_BRANDING_SIZE - 1);
1919 break;
1920 case MPT2SAS_DELL_PERC_H200_EMBEDDED_SSDID:
1921 strncpy(dell_branding,
1922 MPT2SAS_DELL_PERC_H200_EMBEDDED_BRANDING,
1923 MPT2SAS_DELL_BRANDING_SIZE - 1);
1924 break;
1925 case MPT2SAS_DELL_PERC_H200_SSDID:
1926 strncpy(dell_branding, MPT2SAS_DELL_PERC_H200_BRANDING,
1927 MPT2SAS_DELL_BRANDING_SIZE - 1);
1928 break;
1929 case MPT2SAS_DELL_6GBPS_SAS_SSDID:
1930 strncpy(dell_branding, MPT2SAS_DELL_6GBPS_SAS_BRANDING,
1931 MPT2SAS_DELL_BRANDING_SIZE - 1);
1932 break;
1933 default:
1934 sprintf(dell_branding, "0x%4X", ioc->pdev->subsystem_device);
1935 break;
1936 }
1937
1938 printk(MPT2SAS_INFO_FMT "%s: Vendor(0x%04X), Device(0x%04X),"
1939 " SSVID(0x%04X), SSDID(0x%04X)\n", ioc->name, dell_branding,
1940 ioc->pdev->vendor, ioc->pdev->device, ioc->pdev->subsystem_vendor,
1941 ioc->pdev->subsystem_device);
1942}
1943
1944/**
Kashyap, Desaifb396be2011-01-04 11:36:37 +05301945 * _base_display_intel_branding - Display branding string
1946 * @ioc: per adapter object
1947 *
1948 * Return nothing.
1949 */
1950static void
1951_base_display_intel_branding(struct MPT2SAS_ADAPTER *ioc)
1952{
Kashyap, Desaiab3e5f62011-06-14 10:57:31 +05301953 if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_INTEL)
1954 return;
Kashyap, Desaifb396be2011-01-04 11:36:37 +05301955
Kashyap, Desaiab3e5f62011-06-14 10:57:31 +05301956 switch (ioc->pdev->device) {
1957 case MPI2_MFGPAGE_DEVID_SAS2008:
Kashyap, Desaifb396be2011-01-04 11:36:37 +05301958 switch (ioc->pdev->subsystem_device) {
1959 case MPT2SAS_INTEL_RMS2LL080_SSDID:
1960 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
1961 MPT2SAS_INTEL_RMS2LL080_BRANDING);
1962 break;
1963 case MPT2SAS_INTEL_RMS2LL040_SSDID:
1964 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
1965 MPT2SAS_INTEL_RMS2LL040_BRANDING);
1966 break;
nagalakshmi.nandigama@lsi.com70e73f92011-12-01 07:43:00 +05301967 case MPT2SAS_INTEL_RAMSDALE_SSDID:
1968 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
1969 MPT2SAS_INTEL_RAMSDALE_BRANDING);
1970 break;
Kashyap, Desaiab3e5f62011-06-14 10:57:31 +05301971 default:
1972 break;
Kashyap, Desaifb396be2011-01-04 11:36:37 +05301973 }
Kashyap, Desaiab3e5f62011-06-14 10:57:31 +05301974 case MPI2_MFGPAGE_DEVID_SAS2308_2:
1975 switch (ioc->pdev->subsystem_device) {
1976 case MPT2SAS_INTEL_RS25GB008_SSDID:
1977 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
1978 MPT2SAS_INTEL_RS25GB008_BRANDING);
1979 break;
nagalakshmi.nandigama@lsi.com8bad3052011-12-01 07:52:42 +05301980 case MPT2SAS_INTEL_RMS25JB080_SSDID:
1981 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
1982 MPT2SAS_INTEL_RMS25JB080_BRANDING);
1983 break;
1984 case MPT2SAS_INTEL_RMS25JB040_SSDID:
1985 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
1986 MPT2SAS_INTEL_RMS25JB040_BRANDING);
1987 break;
1988 case MPT2SAS_INTEL_RMS25KB080_SSDID:
1989 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
1990 MPT2SAS_INTEL_RMS25KB080_BRANDING);
1991 break;
1992 case MPT2SAS_INTEL_RMS25KB040_SSDID:
1993 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
1994 MPT2SAS_INTEL_RMS25KB040_BRANDING);
1995 break;
Kashyap, Desaiab3e5f62011-06-14 10:57:31 +05301996 default:
1997 break;
1998 }
1999 default:
2000 break;
Kashyap, Desaifb396be2011-01-04 11:36:37 +05302001 }
2002}
2003
2004/**
Kashyap, Desai0a2385c2011-03-15 20:04:26 +05302005 * _base_display_hp_branding - Display branding string
2006 * @ioc: per adapter object
2007 *
2008 * Return nothing.
2009 */
2010static void
2011_base_display_hp_branding(struct MPT2SAS_ADAPTER *ioc)
2012{
2013 if (ioc->pdev->subsystem_vendor != MPT2SAS_HP_3PAR_SSVID)
2014 return;
2015
2016 switch (ioc->pdev->device) {
2017 case MPI2_MFGPAGE_DEVID_SAS2004:
2018 switch (ioc->pdev->subsystem_device) {
2019 case MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_SSDID:
2020 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
2021 MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_BRANDING);
2022 break;
2023 default:
2024 break;
2025 }
2026 case MPI2_MFGPAGE_DEVID_SAS2308_2:
2027 switch (ioc->pdev->subsystem_device) {
2028 case MPT2SAS_HP_2_4_INTERNAL_SSDID:
2029 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
2030 MPT2SAS_HP_2_4_INTERNAL_BRANDING);
2031 break;
2032 case MPT2SAS_HP_2_4_EXTERNAL_SSDID:
2033 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
2034 MPT2SAS_HP_2_4_EXTERNAL_BRANDING);
2035 break;
2036 case MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_SSDID:
2037 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
2038 MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_BRANDING);
2039 break;
2040 case MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_SSDID:
2041 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
2042 MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_BRANDING);
2043 break;
2044 default:
2045 break;
2046 }
2047 default:
2048 break;
2049 }
2050}
2051
2052/**
Eric Moore635374e2009-03-09 01:21:12 -06002053 * _base_display_ioc_capabilities - Disply IOC's capabilities.
2054 * @ioc: per adapter object
2055 *
2056 * Return nothing.
2057 */
2058static void
2059_base_display_ioc_capabilities(struct MPT2SAS_ADAPTER *ioc)
2060{
2061 int i = 0;
2062 char desc[16];
2063 u8 revision;
2064 u32 iounit_pg1_flags;
Kashyap, Desaic97951e2011-06-14 10:54:56 +05302065 u32 bios_version;
Eric Moore635374e2009-03-09 01:21:12 -06002066
Kashyap, Desaic97951e2011-06-14 10:54:56 +05302067 bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
Eric Moore635374e2009-03-09 01:21:12 -06002068 pci_read_config_byte(ioc->pdev, PCI_CLASS_REVISION, &revision);
2069 strncpy(desc, ioc->manu_pg0.ChipName, 16);
2070 printk(MPT2SAS_INFO_FMT "%s: FWVersion(%02d.%02d.%02d.%02d), "
2071 "ChipRevision(0x%02x), BiosVersion(%02d.%02d.%02d.%02d)\n",
2072 ioc->name, desc,
2073 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
2074 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
2075 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
2076 ioc->facts.FWVersion.Word & 0x000000FF,
2077 revision,
Kashyap, Desaic97951e2011-06-14 10:54:56 +05302078 (bios_version & 0xFF000000) >> 24,
2079 (bios_version & 0x00FF0000) >> 16,
2080 (bios_version & 0x0000FF00) >> 8,
2081 bios_version & 0x000000FF);
Eric Moore635374e2009-03-09 01:21:12 -06002082
Kashyap, Desaied79f122009-08-20 13:23:49 +05302083 _base_display_dell_branding(ioc);
Kashyap, Desaifb396be2011-01-04 11:36:37 +05302084 _base_display_intel_branding(ioc);
Kashyap, Desai0a2385c2011-03-15 20:04:26 +05302085 _base_display_hp_branding(ioc);
Kashyap, Desaied79f122009-08-20 13:23:49 +05302086
Eric Moore635374e2009-03-09 01:21:12 -06002087 printk(MPT2SAS_INFO_FMT "Protocol=(", ioc->name);
2088
2089 if (ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR) {
2090 printk("Initiator");
2091 i++;
2092 }
2093
2094 if (ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_TARGET) {
2095 printk("%sTarget", i ? "," : "");
2096 i++;
2097 }
2098
2099 i = 0;
2100 printk("), ");
2101 printk("Capabilities=(");
2102
Kashyap, Desai0bdccdb2011-04-07 12:32:49 +05302103 if (!ioc->hide_ir_msg) {
2104 if (ioc->facts.IOCCapabilities &
2105 MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID) {
2106 printk("Raid");
2107 i++;
2108 }
Eric Moore635374e2009-03-09 01:21:12 -06002109 }
2110
2111 if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR) {
2112 printk("%sTLR", i ? "," : "");
2113 i++;
2114 }
2115
2116 if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_MULTICAST) {
2117 printk("%sMulticast", i ? "," : "");
2118 i++;
2119 }
2120
2121 if (ioc->facts.IOCCapabilities &
2122 MPI2_IOCFACTS_CAPABILITY_BIDIRECTIONAL_TARGET) {
2123 printk("%sBIDI Target", i ? "," : "");
2124 i++;
2125 }
2126
2127 if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_EEDP) {
2128 printk("%sEEDP", i ? "," : "");
2129 i++;
2130 }
2131
2132 if (ioc->facts.IOCCapabilities &
2133 MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER) {
2134 printk("%sSnapshot Buffer", i ? "," : "");
2135 i++;
2136 }
2137
2138 if (ioc->facts.IOCCapabilities &
2139 MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER) {
2140 printk("%sDiag Trace Buffer", i ? "," : "");
2141 i++;
2142 }
2143
2144 if (ioc->facts.IOCCapabilities &
Kashyap, Desai1b01fe32009-09-23 17:28:59 +05302145 MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER) {
2146 printk(KERN_INFO "%sDiag Extended Buffer", i ? "," : "");
2147 i++;
2148 }
2149
2150 if (ioc->facts.IOCCapabilities &
Eric Moore635374e2009-03-09 01:21:12 -06002151 MPI2_IOCFACTS_CAPABILITY_TASK_SET_FULL_HANDLING) {
2152 printk("%sTask Set Full", i ? "," : "");
2153 i++;
2154 }
2155
2156 iounit_pg1_flags = le32_to_cpu(ioc->iounit_pg1.Flags);
2157 if (!(iounit_pg1_flags & MPI2_IOUNITPAGE1_NATIVE_COMMAND_Q_DISABLE)) {
2158 printk("%sNCQ", i ? "," : "");
2159 i++;
2160 }
2161
2162 printk(")\n");
2163}
2164
2165/**
Kashyap, Desai6cb8ef52010-11-13 04:32:18 +05302166 * _base_update_missing_delay - change the missing delay timers
2167 * @ioc: per adapter object
2168 * @device_missing_delay: amount of time till device is reported missing
2169 * @io_missing_delay: interval IO is returned when there is a missing device
2170 *
2171 * Return nothing.
2172 *
2173 * Passed on the command line, this function will modify the device missing
2174 * delay, as well as the io missing delay. This should be called at driver
2175 * load time.
2176 */
2177static void
2178_base_update_missing_delay(struct MPT2SAS_ADAPTER *ioc,
2179 u16 device_missing_delay, u8 io_missing_delay)
2180{
2181 u16 dmd, dmd_new, dmd_orignal;
2182 u8 io_missing_delay_original;
2183 u16 sz;
2184 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
2185 Mpi2ConfigReply_t mpi_reply;
2186 u8 num_phys = 0;
2187 u16 ioc_status;
2188
2189 mpt2sas_config_get_number_hba_phys(ioc, &num_phys);
2190 if (!num_phys)
2191 return;
2192
2193 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (num_phys *
2194 sizeof(Mpi2SasIOUnit1PhyData_t));
2195 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
2196 if (!sas_iounit_pg1) {
2197 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
2198 ioc->name, __FILE__, __LINE__, __func__);
2199 goto out;
2200 }
2201 if ((mpt2sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
2202 sas_iounit_pg1, sz))) {
2203 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
2204 ioc->name, __FILE__, __LINE__, __func__);
2205 goto out;
2206 }
2207 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
2208 MPI2_IOCSTATUS_MASK;
2209 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
2210 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
2211 ioc->name, __FILE__, __LINE__, __func__);
2212 goto out;
2213 }
2214
2215 /* device missing delay */
2216 dmd = sas_iounit_pg1->ReportDeviceMissingDelay;
2217 if (dmd & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
2218 dmd = (dmd & MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
2219 else
2220 dmd = dmd & MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
2221 dmd_orignal = dmd;
2222 if (device_missing_delay > 0x7F) {
2223 dmd = (device_missing_delay > 0x7F0) ? 0x7F0 :
2224 device_missing_delay;
2225 dmd = dmd / 16;
2226 dmd |= MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16;
2227 } else
2228 dmd = device_missing_delay;
2229 sas_iounit_pg1->ReportDeviceMissingDelay = dmd;
2230
2231 /* io missing delay */
2232 io_missing_delay_original = sas_iounit_pg1->IODeviceMissingDelay;
2233 sas_iounit_pg1->IODeviceMissingDelay = io_missing_delay;
2234
2235 if (!mpt2sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1,
2236 sz)) {
2237 if (dmd & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
2238 dmd_new = (dmd &
2239 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
2240 else
2241 dmd_new =
2242 dmd & MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
2243 printk(MPT2SAS_INFO_FMT "device_missing_delay: old(%d), "
2244 "new(%d)\n", ioc->name, dmd_orignal, dmd_new);
2245 printk(MPT2SAS_INFO_FMT "ioc_missing_delay: old(%d), "
2246 "new(%d)\n", ioc->name, io_missing_delay_original,
2247 io_missing_delay);
2248 ioc->device_missing_delay = dmd_new;
2249 ioc->io_missing_delay = io_missing_delay;
2250 }
2251
2252out:
2253 kfree(sas_iounit_pg1);
2254}
2255
2256/**
Eric Moore635374e2009-03-09 01:21:12 -06002257 * _base_static_config_pages - static start of day config pages
2258 * @ioc: per adapter object
2259 *
2260 * Return nothing.
2261 */
2262static void
2263_base_static_config_pages(struct MPT2SAS_ADAPTER *ioc)
2264{
2265 Mpi2ConfigReply_t mpi_reply;
2266 u32 iounit_pg1_flags;
2267
2268 mpt2sas_config_get_manufacturing_pg0(ioc, &mpi_reply, &ioc->manu_pg0);
Kashyap, Desaied79f122009-08-20 13:23:49 +05302269 if (ioc->ir_firmware)
2270 mpt2sas_config_get_manufacturing_pg10(ioc, &mpi_reply,
2271 &ioc->manu_pg10);
Eric Moore635374e2009-03-09 01:21:12 -06002272 mpt2sas_config_get_bios_pg2(ioc, &mpi_reply, &ioc->bios_pg2);
2273 mpt2sas_config_get_bios_pg3(ioc, &mpi_reply, &ioc->bios_pg3);
2274 mpt2sas_config_get_ioc_pg8(ioc, &mpi_reply, &ioc->ioc_pg8);
2275 mpt2sas_config_get_iounit_pg0(ioc, &mpi_reply, &ioc->iounit_pg0);
2276 mpt2sas_config_get_iounit_pg1(ioc, &mpi_reply, &ioc->iounit_pg1);
2277 _base_display_ioc_capabilities(ioc);
2278
2279 /*
2280 * Enable task_set_full handling in iounit_pg1 when the
2281 * facts capabilities indicate that its supported.
2282 */
2283 iounit_pg1_flags = le32_to_cpu(ioc->iounit_pg1.Flags);
2284 if ((ioc->facts.IOCCapabilities &
2285 MPI2_IOCFACTS_CAPABILITY_TASK_SET_FULL_HANDLING))
2286 iounit_pg1_flags &=
2287 ~MPI2_IOUNITPAGE1_DISABLE_TASK_SET_FULL_HANDLING;
2288 else
2289 iounit_pg1_flags |=
2290 MPI2_IOUNITPAGE1_DISABLE_TASK_SET_FULL_HANDLING;
2291 ioc->iounit_pg1.Flags = cpu_to_le32(iounit_pg1_flags);
Kashyap, Desai5b768582009-08-20 13:24:31 +05302292 mpt2sas_config_set_iounit_pg1(ioc, &mpi_reply, &ioc->iounit_pg1);
Kashyap, Desai6cb8ef52010-11-13 04:32:18 +05302293
Eric Moore635374e2009-03-09 01:21:12 -06002294}
2295
2296/**
2297 * _base_release_memory_pools - release memory
2298 * @ioc: per adapter object
2299 *
2300 * Free memory allocated from _base_allocate_memory_pools.
2301 *
2302 * Return nothing.
2303 */
2304static void
2305_base_release_memory_pools(struct MPT2SAS_ADAPTER *ioc)
2306{
Kashyap, Desai35f805b2010-11-13 04:34:06 +05302307 int i;
2308
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05302309 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06002310 __func__));
2311
2312 if (ioc->request) {
2313 pci_free_consistent(ioc->pdev, ioc->request_dma_sz,
2314 ioc->request, ioc->request_dma);
2315 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "request_pool(0x%p)"
2316 ": free\n", ioc->name, ioc->request));
2317 ioc->request = NULL;
2318 }
2319
2320 if (ioc->sense) {
2321 pci_pool_free(ioc->sense_dma_pool, ioc->sense, ioc->sense_dma);
2322 if (ioc->sense_dma_pool)
2323 pci_pool_destroy(ioc->sense_dma_pool);
2324 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "sense_pool(0x%p)"
2325 ": free\n", ioc->name, ioc->sense));
2326 ioc->sense = NULL;
2327 }
2328
2329 if (ioc->reply) {
2330 pci_pool_free(ioc->reply_dma_pool, ioc->reply, ioc->reply_dma);
2331 if (ioc->reply_dma_pool)
2332 pci_pool_destroy(ioc->reply_dma_pool);
2333 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_pool(0x%p)"
2334 ": free\n", ioc->name, ioc->reply));
2335 ioc->reply = NULL;
2336 }
2337
2338 if (ioc->reply_free) {
2339 pci_pool_free(ioc->reply_free_dma_pool, ioc->reply_free,
2340 ioc->reply_free_dma);
2341 if (ioc->reply_free_dma_pool)
2342 pci_pool_destroy(ioc->reply_free_dma_pool);
2343 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_free_pool"
2344 "(0x%p): free\n", ioc->name, ioc->reply_free));
2345 ioc->reply_free = NULL;
2346 }
2347
2348 if (ioc->reply_post_free) {
2349 pci_pool_free(ioc->reply_post_free_dma_pool,
2350 ioc->reply_post_free, ioc->reply_post_free_dma);
2351 if (ioc->reply_post_free_dma_pool)
2352 pci_pool_destroy(ioc->reply_post_free_dma_pool);
2353 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT
2354 "reply_post_free_pool(0x%p): free\n", ioc->name,
2355 ioc->reply_post_free));
2356 ioc->reply_post_free = NULL;
2357 }
2358
2359 if (ioc->config_page) {
2360 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT
2361 "config_page(0x%p): free\n", ioc->name,
2362 ioc->config_page));
2363 pci_free_consistent(ioc->pdev, ioc->config_page_sz,
2364 ioc->config_page, ioc->config_page_dma);
2365 }
2366
Kashyap, Desai66a67932010-04-05 14:21:07 +05302367 if (ioc->scsi_lookup) {
2368 free_pages((ulong)ioc->scsi_lookup, ioc->scsi_lookup_pages);
2369 ioc->scsi_lookup = NULL;
2370 }
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302371 kfree(ioc->hpr_lookup);
2372 kfree(ioc->internal_lookup);
Kashyap, Desai35f805b2010-11-13 04:34:06 +05302373 if (ioc->chain_lookup) {
2374 for (i = 0; i < ioc->chain_depth; i++) {
2375 if (ioc->chain_lookup[i].chain_buffer)
2376 pci_pool_free(ioc->chain_dma_pool,
2377 ioc->chain_lookup[i].chain_buffer,
2378 ioc->chain_lookup[i].chain_buffer_dma);
2379 }
2380 if (ioc->chain_dma_pool)
2381 pci_pool_destroy(ioc->chain_dma_pool);
Kashyap, Desai35f805b2010-11-13 04:34:06 +05302382 free_pages((ulong)ioc->chain_lookup, ioc->chain_pages);
2383 ioc->chain_lookup = NULL;
2384 }
Eric Moore635374e2009-03-09 01:21:12 -06002385}
2386
2387
2388/**
2389 * _base_allocate_memory_pools - allocate start of day memory pools
2390 * @ioc: per adapter object
2391 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2392 *
2393 * Returns 0 success, anything else error
2394 */
2395static int
2396_base_allocate_memory_pools(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
2397{
Kashyap, Desaic97951e2011-06-14 10:54:56 +05302398 struct mpt2sas_facts *facts;
Eric Moore635374e2009-03-09 01:21:12 -06002399 u16 max_sge_elements;
Eric Moore635374e2009-03-09 01:21:12 -06002400 u16 chains_needed_per_io;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05302401 u32 sz, total_sz, reply_post_free_sz;
Eric Moore635374e2009-03-09 01:21:12 -06002402 u32 retry_sz;
2403 u16 max_request_credit;
Kashyap, Desai35f805b2010-11-13 04:34:06 +05302404 int i;
Eric Moore635374e2009-03-09 01:21:12 -06002405
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05302406 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06002407 __func__));
2408
2409 retry_sz = 0;
2410 facts = &ioc->facts;
2411
2412 /* command line tunables for max sgl entries */
2413 if (max_sgl_entries != -1) {
2414 ioc->shost->sg_tablesize = (max_sgl_entries <
2415 MPT2SAS_SG_DEPTH) ? max_sgl_entries :
2416 MPT2SAS_SG_DEPTH;
2417 } else {
2418 ioc->shost->sg_tablesize = MPT2SAS_SG_DEPTH;
2419 }
2420
2421 /* command line tunables for max controller queue depth */
Kashyap, Desai35f805b2010-11-13 04:34:06 +05302422 if (max_queue_depth != -1)
Eric Moore635374e2009-03-09 01:21:12 -06002423 max_request_credit = (max_queue_depth < facts->RequestCredit)
2424 ? max_queue_depth : facts->RequestCredit;
Kashyap, Desai35f805b2010-11-13 04:34:06 +05302425 else
nagalakshmi.nandigama@lsi.comaff132d2011-12-01 07:53:08 +05302426 max_request_credit = min_t(u16, facts->RequestCredit,
2427 MAX_HBA_QUEUE_DEPTH);
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302428
2429 ioc->hba_queue_depth = max_request_credit;
2430 ioc->hi_priority_depth = facts->HighPriorityCredit;
2431 ioc->internal_depth = ioc->hi_priority_depth + 5;
Eric Moore635374e2009-03-09 01:21:12 -06002432
2433 /* request frame size */
2434 ioc->request_sz = facts->IOCRequestFrameSize * 4;
2435
2436 /* reply frame size */
2437 ioc->reply_sz = facts->ReplyFrameSize * 4;
2438
2439 retry_allocation:
2440 total_sz = 0;
2441 /* calculate number of sg elements left over in the 1st frame */
2442 max_sge_elements = ioc->request_sz - ((sizeof(Mpi2SCSIIORequest_t) -
2443 sizeof(Mpi2SGEIOUnion_t)) + ioc->sge_size);
2444 ioc->max_sges_in_main_message = max_sge_elements/ioc->sge_size;
2445
2446 /* now do the same for a chain buffer */
2447 max_sge_elements = ioc->request_sz - ioc->sge_size;
2448 ioc->max_sges_in_chain_message = max_sge_elements/ioc->sge_size;
2449
2450 ioc->chain_offset_value_for_main_message =
2451 ((sizeof(Mpi2SCSIIORequest_t) - sizeof(Mpi2SGEIOUnion_t)) +
2452 (ioc->max_sges_in_chain_message * ioc->sge_size)) / 4;
2453
2454 /*
2455 * MPT2SAS_SG_DEPTH = CONFIG_FUSION_MAX_SGE
2456 */
2457 chains_needed_per_io = ((ioc->shost->sg_tablesize -
2458 ioc->max_sges_in_main_message)/ioc->max_sges_in_chain_message)
2459 + 1;
2460 if (chains_needed_per_io > facts->MaxChainDepth) {
2461 chains_needed_per_io = facts->MaxChainDepth;
2462 ioc->shost->sg_tablesize = min_t(u16,
2463 ioc->max_sges_in_main_message + (ioc->max_sges_in_chain_message
2464 * chains_needed_per_io), ioc->shost->sg_tablesize);
2465 }
2466 ioc->chains_needed_per_io = chains_needed_per_io;
2467
nagalakshmi.nandigama@lsi.comaff132d2011-12-01 07:53:08 +05302468 /* reply free queue sizing - taking into account for 64 FW events */
2469 ioc->reply_free_queue_depth = ioc->hba_queue_depth + 64;
Eric Moore635374e2009-03-09 01:21:12 -06002470
nagalakshmi.nandigama@lsi.comaff132d2011-12-01 07:53:08 +05302471 /* align the reply post queue on the next 16 count boundary */
2472 if (!ioc->reply_free_queue_depth % 16)
2473 ioc->reply_post_queue_depth = ioc->reply_free_queue_depth + 16;
2474 else
2475 ioc->reply_post_queue_depth = ioc->reply_free_queue_depth +
2476 32 - (ioc->reply_free_queue_depth % 16);
2477 if (ioc->reply_post_queue_depth >
2478 facts->MaxReplyDescriptorPostQueueDepth) {
2479 ioc->reply_post_queue_depth = min_t(u16,
2480 (facts->MaxReplyDescriptorPostQueueDepth -
2481 (facts->MaxReplyDescriptorPostQueueDepth % 16)),
2482 (ioc->hba_queue_depth - (ioc->hba_queue_depth % 16)));
2483 ioc->reply_free_queue_depth = ioc->reply_post_queue_depth - 16;
2484 ioc->hba_queue_depth = ioc->reply_free_queue_depth - 64;
Eric Moore635374e2009-03-09 01:21:12 -06002485 }
nagalakshmi.nandigama@lsi.comaff132d2011-12-01 07:53:08 +05302486
Eric Moore635374e2009-03-09 01:21:12 -06002487
Eric Moore635374e2009-03-09 01:21:12 -06002488 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scatter gather: "
2489 "sge_in_main_msg(%d), sge_per_chain(%d), sge_per_io(%d), "
2490 "chains_per_io(%d)\n", ioc->name, ioc->max_sges_in_main_message,
2491 ioc->max_sges_in_chain_message, ioc->shost->sg_tablesize,
2492 ioc->chains_needed_per_io));
2493
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302494 ioc->scsiio_depth = ioc->hba_queue_depth -
2495 ioc->hi_priority_depth - ioc->internal_depth;
2496
2497 /* set the scsi host can_queue depth
2498 * with some internal commands that could be outstanding
2499 */
2500 ioc->shost->can_queue = ioc->scsiio_depth - (2);
2501 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scsi host: "
2502 "can_queue depth (%d)\n", ioc->name, ioc->shost->can_queue));
2503
Eric Moore635374e2009-03-09 01:21:12 -06002504 /* contiguous pool for request and chains, 16 byte align, one extra "
2505 * "frame for smid=0
2506 */
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302507 ioc->chain_depth = ioc->chains_needed_per_io * ioc->scsiio_depth;
Kashyap, Desai35f805b2010-11-13 04:34:06 +05302508 sz = ((ioc->scsiio_depth + 1) * ioc->request_sz);
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302509
2510 /* hi-priority queue */
2511 sz += (ioc->hi_priority_depth * ioc->request_sz);
2512
2513 /* internal queue */
2514 sz += (ioc->internal_depth * ioc->request_sz);
Eric Moore635374e2009-03-09 01:21:12 -06002515
2516 ioc->request_dma_sz = sz;
2517 ioc->request = pci_alloc_consistent(ioc->pdev, sz, &ioc->request_dma);
2518 if (!ioc->request) {
2519 printk(MPT2SAS_ERR_FMT "request pool: pci_alloc_consistent "
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302520 "failed: hba_depth(%d), chains_per_io(%d), frame_sz(%d), "
2521 "total(%d kB)\n", ioc->name, ioc->hba_queue_depth,
Eric Moore635374e2009-03-09 01:21:12 -06002522 ioc->chains_needed_per_io, ioc->request_sz, sz/1024);
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302523 if (ioc->scsiio_depth < MPT2SAS_SAS_QUEUE_DEPTH)
Eric Moore635374e2009-03-09 01:21:12 -06002524 goto out;
2525 retry_sz += 64;
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302526 ioc->hba_queue_depth = max_request_credit - retry_sz;
Eric Moore635374e2009-03-09 01:21:12 -06002527 goto retry_allocation;
2528 }
2529
2530 if (retry_sz)
2531 printk(MPT2SAS_ERR_FMT "request pool: pci_alloc_consistent "
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302532 "succeed: hba_depth(%d), chains_per_io(%d), frame_sz(%d), "
2533 "total(%d kb)\n", ioc->name, ioc->hba_queue_depth,
Eric Moore635374e2009-03-09 01:21:12 -06002534 ioc->chains_needed_per_io, ioc->request_sz, sz/1024);
2535
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302536
2537 /* hi-priority queue */
2538 ioc->hi_priority = ioc->request + ((ioc->scsiio_depth + 1) *
Eric Moore635374e2009-03-09 01:21:12 -06002539 ioc->request_sz);
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302540 ioc->hi_priority_dma = ioc->request_dma + ((ioc->scsiio_depth + 1) *
Eric Moore635374e2009-03-09 01:21:12 -06002541 ioc->request_sz);
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302542
2543 /* internal queue */
2544 ioc->internal = ioc->hi_priority + (ioc->hi_priority_depth *
2545 ioc->request_sz);
2546 ioc->internal_dma = ioc->hi_priority_dma + (ioc->hi_priority_depth *
2547 ioc->request_sz);
2548
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302549
Eric Moore635374e2009-03-09 01:21:12 -06002550 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "request pool(0x%p): "
2551 "depth(%d), frame_size(%d), pool_size(%d kB)\n", ioc->name,
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302552 ioc->request, ioc->hba_queue_depth, ioc->request_sz,
2553 (ioc->hba_queue_depth * ioc->request_sz)/1024));
Eric Moore635374e2009-03-09 01:21:12 -06002554 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "request pool: dma(0x%llx)\n",
2555 ioc->name, (unsigned long long) ioc->request_dma));
2556 total_sz += sz;
2557
Kashyap, Desaid5bd3492011-01-04 11:39:20 +05302558 sz = ioc->scsiio_depth * sizeof(struct scsiio_tracker);
Kashyap, Desai89009fb2010-03-17 16:22:52 +05302559 ioc->scsi_lookup_pages = get_order(sz);
Kashyap, Desaid5bd3492011-01-04 11:39:20 +05302560 ioc->scsi_lookup = (struct scsiio_tracker *)__get_free_pages(
Kashyap, Desai89009fb2010-03-17 16:22:52 +05302561 GFP_KERNEL, ioc->scsi_lookup_pages);
Eric Moore635374e2009-03-09 01:21:12 -06002562 if (!ioc->scsi_lookup) {
Kashyap, Desai89009fb2010-03-17 16:22:52 +05302563 printk(MPT2SAS_ERR_FMT "scsi_lookup: get_free_pages failed, "
2564 "sz(%d)\n", ioc->name, (int)sz);
Eric Moore635374e2009-03-09 01:21:12 -06002565 goto out;
2566 }
2567
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302568 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scsiio(0x%p): "
2569 "depth(%d)\n", ioc->name, ioc->request,
2570 ioc->scsiio_depth));
2571
nagalakshmi.nandigama@lsi.comaff132d2011-12-01 07:53:08 +05302572 ioc->chain_depth = min_t(u32, ioc->chain_depth, MAX_CHAIN_DEPTH);
2573 sz = ioc->chain_depth * sizeof(struct chain_tracker);
2574 ioc->chain_pages = get_order(sz);
2575
2576 ioc->chain_lookup = (struct chain_tracker *)__get_free_pages(
2577 GFP_KERNEL, ioc->chain_pages);
Tomas Henzlc834b1c2012-02-13 18:29:58 +01002578 if (!ioc->chain_lookup) {
2579 printk(MPT2SAS_ERR_FMT "chain_lookup: get_free_pages failed, "
2580 "sz(%d)\n", ioc->name, (int)sz);
2581 goto out;
2582 }
Kashyap, Desai35f805b2010-11-13 04:34:06 +05302583 ioc->chain_dma_pool = pci_pool_create("chain pool", ioc->pdev,
2584 ioc->request_sz, 16, 0);
2585 if (!ioc->chain_dma_pool) {
2586 printk(MPT2SAS_ERR_FMT "chain_dma_pool: pci_pool_create "
2587 "failed\n", ioc->name);
2588 goto out;
2589 }
2590 for (i = 0; i < ioc->chain_depth; i++) {
2591 ioc->chain_lookup[i].chain_buffer = pci_pool_alloc(
2592 ioc->chain_dma_pool , GFP_KERNEL,
2593 &ioc->chain_lookup[i].chain_buffer_dma);
2594 if (!ioc->chain_lookup[i].chain_buffer) {
2595 ioc->chain_depth = i;
2596 goto chain_done;
2597 }
2598 total_sz += ioc->request_sz;
2599 }
2600chain_done:
2601 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "chain pool depth"
2602 "(%d), frame_size(%d), pool_size(%d kB)\n", ioc->name,
2603 ioc->chain_depth, ioc->request_sz, ((ioc->chain_depth *
2604 ioc->request_sz))/1024));
2605
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302606 /* initialize hi-priority queue smid's */
2607 ioc->hpr_lookup = kcalloc(ioc->hi_priority_depth,
2608 sizeof(struct request_tracker), GFP_KERNEL);
2609 if (!ioc->hpr_lookup) {
2610 printk(MPT2SAS_ERR_FMT "hpr_lookup: kcalloc failed\n",
2611 ioc->name);
2612 goto out;
2613 }
2614 ioc->hi_priority_smid = ioc->scsiio_depth + 1;
2615 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "hi_priority(0x%p): "
2616 "depth(%d), start smid(%d)\n", ioc->name, ioc->hi_priority,
2617 ioc->hi_priority_depth, ioc->hi_priority_smid));
2618
2619 /* initialize internal queue smid's */
2620 ioc->internal_lookup = kcalloc(ioc->internal_depth,
2621 sizeof(struct request_tracker), GFP_KERNEL);
2622 if (!ioc->internal_lookup) {
2623 printk(MPT2SAS_ERR_FMT "internal_lookup: kcalloc failed\n",
2624 ioc->name);
2625 goto out;
2626 }
2627 ioc->internal_smid = ioc->hi_priority_smid + ioc->hi_priority_depth;
2628 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "internal(0x%p): "
2629 "depth(%d), start smid(%d)\n", ioc->name, ioc->internal,
2630 ioc->internal_depth, ioc->internal_smid));
Eric Moore635374e2009-03-09 01:21:12 -06002631
2632 /* sense buffers, 4 byte align */
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302633 sz = ioc->scsiio_depth * SCSI_SENSE_BUFFERSIZE;
Eric Moore635374e2009-03-09 01:21:12 -06002634 ioc->sense_dma_pool = pci_pool_create("sense pool", ioc->pdev, sz, 4,
2635 0);
2636 if (!ioc->sense_dma_pool) {
2637 printk(MPT2SAS_ERR_FMT "sense pool: pci_pool_create failed\n",
2638 ioc->name);
2639 goto out;
2640 }
2641 ioc->sense = pci_pool_alloc(ioc->sense_dma_pool , GFP_KERNEL,
2642 &ioc->sense_dma);
2643 if (!ioc->sense) {
2644 printk(MPT2SAS_ERR_FMT "sense pool: pci_pool_alloc failed\n",
2645 ioc->name);
2646 goto out;
2647 }
2648 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
2649 "sense pool(0x%p): depth(%d), element_size(%d), pool_size"
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302650 "(%d kB)\n", ioc->name, ioc->sense, ioc->scsiio_depth,
Eric Moore635374e2009-03-09 01:21:12 -06002651 SCSI_SENSE_BUFFERSIZE, sz/1024));
2652 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "sense_dma(0x%llx)\n",
2653 ioc->name, (unsigned long long)ioc->sense_dma));
2654 total_sz += sz;
2655
2656 /* reply pool, 4 byte align */
2657 sz = ioc->reply_free_queue_depth * ioc->reply_sz;
2658 ioc->reply_dma_pool = pci_pool_create("reply pool", ioc->pdev, sz, 4,
2659 0);
2660 if (!ioc->reply_dma_pool) {
2661 printk(MPT2SAS_ERR_FMT "reply pool: pci_pool_create failed\n",
2662 ioc->name);
2663 goto out;
2664 }
2665 ioc->reply = pci_pool_alloc(ioc->reply_dma_pool , GFP_KERNEL,
2666 &ioc->reply_dma);
2667 if (!ioc->reply) {
2668 printk(MPT2SAS_ERR_FMT "reply pool: pci_pool_alloc failed\n",
2669 ioc->name);
2670 goto out;
2671 }
Kashyap, Desaidd3741d2010-11-13 04:31:14 +05302672 ioc->reply_dma_min_address = (u32)(ioc->reply_dma);
2673 ioc->reply_dma_max_address = (u32)(ioc->reply_dma) + sz;
Eric Moore635374e2009-03-09 01:21:12 -06002674 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply pool(0x%p): depth"
2675 "(%d), frame_size(%d), pool_size(%d kB)\n", ioc->name, ioc->reply,
2676 ioc->reply_free_queue_depth, ioc->reply_sz, sz/1024));
2677 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_dma(0x%llx)\n",
2678 ioc->name, (unsigned long long)ioc->reply_dma));
2679 total_sz += sz;
2680
2681 /* reply free queue, 16 byte align */
2682 sz = ioc->reply_free_queue_depth * 4;
2683 ioc->reply_free_dma_pool = pci_pool_create("reply_free pool",
2684 ioc->pdev, sz, 16, 0);
2685 if (!ioc->reply_free_dma_pool) {
2686 printk(MPT2SAS_ERR_FMT "reply_free pool: pci_pool_create "
2687 "failed\n", ioc->name);
2688 goto out;
2689 }
2690 ioc->reply_free = pci_pool_alloc(ioc->reply_free_dma_pool , GFP_KERNEL,
2691 &ioc->reply_free_dma);
2692 if (!ioc->reply_free) {
2693 printk(MPT2SAS_ERR_FMT "reply_free pool: pci_pool_alloc "
2694 "failed\n", ioc->name);
2695 goto out;
2696 }
2697 memset(ioc->reply_free, 0, sz);
2698 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_free pool(0x%p): "
2699 "depth(%d), element_size(%d), pool_size(%d kB)\n", ioc->name,
2700 ioc->reply_free, ioc->reply_free_queue_depth, 4, sz/1024));
2701 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_free_dma"
2702 "(0x%llx)\n", ioc->name, (unsigned long long)ioc->reply_free_dma));
2703 total_sz += sz;
2704
2705 /* reply post queue, 16 byte align */
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05302706 reply_post_free_sz = ioc->reply_post_queue_depth *
2707 sizeof(Mpi2DefaultReplyDescriptor_t);
2708 if (_base_is_controller_msix_enabled(ioc))
2709 sz = reply_post_free_sz * ioc->reply_queue_count;
2710 else
2711 sz = reply_post_free_sz;
Eric Moore635374e2009-03-09 01:21:12 -06002712 ioc->reply_post_free_dma_pool = pci_pool_create("reply_post_free pool",
2713 ioc->pdev, sz, 16, 0);
2714 if (!ioc->reply_post_free_dma_pool) {
2715 printk(MPT2SAS_ERR_FMT "reply_post_free pool: pci_pool_create "
2716 "failed\n", ioc->name);
2717 goto out;
2718 }
2719 ioc->reply_post_free = pci_pool_alloc(ioc->reply_post_free_dma_pool ,
2720 GFP_KERNEL, &ioc->reply_post_free_dma);
2721 if (!ioc->reply_post_free) {
2722 printk(MPT2SAS_ERR_FMT "reply_post_free pool: pci_pool_alloc "
2723 "failed\n", ioc->name);
2724 goto out;
2725 }
2726 memset(ioc->reply_post_free, 0, sz);
2727 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply post free pool"
2728 "(0x%p): depth(%d), element_size(%d), pool_size(%d kB)\n",
2729 ioc->name, ioc->reply_post_free, ioc->reply_post_queue_depth, 8,
2730 sz/1024));
2731 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_post_free_dma = "
2732 "(0x%llx)\n", ioc->name, (unsigned long long)
2733 ioc->reply_post_free_dma));
2734 total_sz += sz;
2735
2736 ioc->config_page_sz = 512;
2737 ioc->config_page = pci_alloc_consistent(ioc->pdev,
2738 ioc->config_page_sz, &ioc->config_page_dma);
2739 if (!ioc->config_page) {
2740 printk(MPT2SAS_ERR_FMT "config page: pci_pool_alloc "
2741 "failed\n", ioc->name);
2742 goto out;
2743 }
2744 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "config page(0x%p): size"
2745 "(%d)\n", ioc->name, ioc->config_page, ioc->config_page_sz));
2746 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "config_page_dma"
2747 "(0x%llx)\n", ioc->name, (unsigned long long)ioc->config_page_dma));
2748 total_sz += ioc->config_page_sz;
2749
2750 printk(MPT2SAS_INFO_FMT "Allocated physical memory: size(%d kB)\n",
2751 ioc->name, total_sz/1024);
2752 printk(MPT2SAS_INFO_FMT "Current Controller Queue Depth(%d), "
2753 "Max Controller Queue Depth(%d)\n",
2754 ioc->name, ioc->shost->can_queue, facts->RequestCredit);
2755 printk(MPT2SAS_INFO_FMT "Scatter Gather Elements per IO(%d)\n",
2756 ioc->name, ioc->shost->sg_tablesize);
2757 return 0;
2758
2759 out:
Eric Moore635374e2009-03-09 01:21:12 -06002760 return -ENOMEM;
2761}
2762
2763
2764/**
2765 * mpt2sas_base_get_iocstate - Get the current state of a MPT adapter.
2766 * @ioc: Pointer to MPT_ADAPTER structure
2767 * @cooked: Request raw or cooked IOC state
2768 *
2769 * Returns all IOC Doorbell register bits if cooked==0, else just the
2770 * Doorbell bits in MPI_IOC_STATE_MASK.
2771 */
2772u32
2773mpt2sas_base_get_iocstate(struct MPT2SAS_ADAPTER *ioc, int cooked)
2774{
2775 u32 s, sc;
2776
2777 s = readl(&ioc->chip->Doorbell);
2778 sc = s & MPI2_IOC_STATE_MASK;
2779 return cooked ? sc : s;
2780}
2781
2782/**
2783 * _base_wait_on_iocstate - waiting on a particular ioc state
2784 * @ioc_state: controller state { READY, OPERATIONAL, or RESET }
2785 * @timeout: timeout in second
2786 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2787 *
2788 * Returns 0 for success, non-zero for failure.
2789 */
2790static int
2791_base_wait_on_iocstate(struct MPT2SAS_ADAPTER *ioc, u32 ioc_state, int timeout,
2792 int sleep_flag)
2793{
2794 u32 count, cntdn;
2795 u32 current_state;
2796
2797 count = 0;
2798 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
2799 do {
2800 current_state = mpt2sas_base_get_iocstate(ioc, 1);
2801 if (current_state == ioc_state)
2802 return 0;
2803 if (count && current_state == MPI2_IOC_STATE_FAULT)
2804 break;
2805 if (sleep_flag == CAN_SLEEP)
2806 msleep(1);
2807 else
2808 udelay(500);
2809 count++;
2810 } while (--cntdn);
2811
2812 return current_state;
2813}
2814
2815/**
2816 * _base_wait_for_doorbell_int - waiting for controller interrupt(generated by
2817 * a write to the doorbell)
2818 * @ioc: per adapter object
2819 * @timeout: timeout in second
2820 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2821 *
2822 * Returns 0 for success, non-zero for failure.
2823 *
2824 * Notes: MPI2_HIS_IOC2SYS_DB_STATUS - set to one when IOC writes to doorbell.
2825 */
2826static int
2827_base_wait_for_doorbell_int(struct MPT2SAS_ADAPTER *ioc, int timeout,
2828 int sleep_flag)
2829{
2830 u32 cntdn, count;
2831 u32 int_status;
2832
2833 count = 0;
2834 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
2835 do {
2836 int_status = readl(&ioc->chip->HostInterruptStatus);
2837 if (int_status & MPI2_HIS_IOC2SYS_DB_STATUS) {
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05302838 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
Lucas De Marchi25985ed2011-03-30 22:57:33 -03002839 "successful count(%d), timeout(%d)\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06002840 __func__, count, timeout));
2841 return 0;
2842 }
2843 if (sleep_flag == CAN_SLEEP)
2844 msleep(1);
2845 else
2846 udelay(500);
2847 count++;
2848 } while (--cntdn);
2849
2850 printk(MPT2SAS_ERR_FMT "%s: failed due to timeout count(%d), "
2851 "int_status(%x)!\n", ioc->name, __func__, count, int_status);
2852 return -EFAULT;
2853}
2854
2855/**
2856 * _base_wait_for_doorbell_ack - waiting for controller to read the doorbell.
2857 * @ioc: per adapter object
2858 * @timeout: timeout in second
2859 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2860 *
2861 * Returns 0 for success, non-zero for failure.
2862 *
2863 * Notes: MPI2_HIS_SYS2IOC_DB_STATUS - set to one when host writes to
2864 * doorbell.
2865 */
2866static int
2867_base_wait_for_doorbell_ack(struct MPT2SAS_ADAPTER *ioc, int timeout,
2868 int sleep_flag)
2869{
2870 u32 cntdn, count;
2871 u32 int_status;
2872 u32 doorbell;
2873
2874 count = 0;
2875 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
2876 do {
2877 int_status = readl(&ioc->chip->HostInterruptStatus);
2878 if (!(int_status & MPI2_HIS_SYS2IOC_DB_STATUS)) {
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05302879 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
Lucas De Marchi25985ed2011-03-30 22:57:33 -03002880 "successful count(%d), timeout(%d)\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06002881 __func__, count, timeout));
2882 return 0;
2883 } else if (int_status & MPI2_HIS_IOC2SYS_DB_STATUS) {
2884 doorbell = readl(&ioc->chip->Doorbell);
2885 if ((doorbell & MPI2_IOC_STATE_MASK) ==
2886 MPI2_IOC_STATE_FAULT) {
2887 mpt2sas_base_fault_info(ioc , doorbell);
2888 return -EFAULT;
2889 }
2890 } else if (int_status == 0xFFFFFFFF)
2891 goto out;
2892
2893 if (sleep_flag == CAN_SLEEP)
2894 msleep(1);
2895 else
2896 udelay(500);
2897 count++;
2898 } while (--cntdn);
2899
2900 out:
2901 printk(MPT2SAS_ERR_FMT "%s: failed due to timeout count(%d), "
2902 "int_status(%x)!\n", ioc->name, __func__, count, int_status);
2903 return -EFAULT;
2904}
2905
2906/**
2907 * _base_wait_for_doorbell_not_used - waiting for doorbell to not be in use
2908 * @ioc: per adapter object
2909 * @timeout: timeout in second
2910 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2911 *
2912 * Returns 0 for success, non-zero for failure.
2913 *
2914 */
2915static int
2916_base_wait_for_doorbell_not_used(struct MPT2SAS_ADAPTER *ioc, int timeout,
2917 int sleep_flag)
2918{
2919 u32 cntdn, count;
2920 u32 doorbell_reg;
2921
2922 count = 0;
2923 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
2924 do {
2925 doorbell_reg = readl(&ioc->chip->Doorbell);
2926 if (!(doorbell_reg & MPI2_DOORBELL_USED)) {
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05302927 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
Lucas De Marchi25985ed2011-03-30 22:57:33 -03002928 "successful count(%d), timeout(%d)\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06002929 __func__, count, timeout));
2930 return 0;
2931 }
2932 if (sleep_flag == CAN_SLEEP)
2933 msleep(1);
2934 else
2935 udelay(500);
2936 count++;
2937 } while (--cntdn);
2938
2939 printk(MPT2SAS_ERR_FMT "%s: failed due to timeout count(%d), "
2940 "doorbell_reg(%x)!\n", ioc->name, __func__, count, doorbell_reg);
2941 return -EFAULT;
2942}
2943
2944/**
2945 * _base_send_ioc_reset - send doorbell reset
2946 * @ioc: per adapter object
2947 * @reset_type: currently only supports: MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET
2948 * @timeout: timeout in second
2949 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2950 *
2951 * Returns 0 for success, non-zero for failure.
2952 */
2953static int
2954_base_send_ioc_reset(struct MPT2SAS_ADAPTER *ioc, u8 reset_type, int timeout,
2955 int sleep_flag)
2956{
2957 u32 ioc_state;
2958 int r = 0;
2959
2960 if (reset_type != MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET) {
2961 printk(MPT2SAS_ERR_FMT "%s: unknown reset_type\n",
2962 ioc->name, __func__);
2963 return -EFAULT;
2964 }
2965
2966 if (!(ioc->facts.IOCCapabilities &
2967 MPI2_IOCFACTS_CAPABILITY_EVENT_REPLAY))
2968 return -EFAULT;
2969
2970 printk(MPT2SAS_INFO_FMT "sending message unit reset !!\n", ioc->name);
2971
2972 writel(reset_type << MPI2_DOORBELL_FUNCTION_SHIFT,
2973 &ioc->chip->Doorbell);
2974 if ((_base_wait_for_doorbell_ack(ioc, 15, sleep_flag))) {
2975 r = -EFAULT;
2976 goto out;
2977 }
2978 ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY,
2979 timeout, sleep_flag);
2980 if (ioc_state) {
2981 printk(MPT2SAS_ERR_FMT "%s: failed going to ready state "
2982 " (ioc_state=0x%x)\n", ioc->name, __func__, ioc_state);
2983 r = -EFAULT;
2984 goto out;
2985 }
2986 out:
2987 printk(MPT2SAS_INFO_FMT "message unit reset: %s\n",
2988 ioc->name, ((r == 0) ? "SUCCESS" : "FAILED"));
2989 return r;
2990}
2991
2992/**
2993 * _base_handshake_req_reply_wait - send request thru doorbell interface
2994 * @ioc: per adapter object
2995 * @request_bytes: request length
2996 * @request: pointer having request payload
2997 * @reply_bytes: reply length
2998 * @reply: pointer to reply payload
2999 * @timeout: timeout in second
3000 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3001 *
3002 * Returns 0 for success, non-zero for failure.
3003 */
3004static int
3005_base_handshake_req_reply_wait(struct MPT2SAS_ADAPTER *ioc, int request_bytes,
3006 u32 *request, int reply_bytes, u16 *reply, int timeout, int sleep_flag)
3007{
3008 MPI2DefaultReply_t *default_reply = (MPI2DefaultReply_t *)reply;
3009 int i;
3010 u8 failed;
3011 u16 dummy;
Kashyap, Desaic97951e2011-06-14 10:54:56 +05303012 __le32 *mfp;
Eric Moore635374e2009-03-09 01:21:12 -06003013
3014 /* make sure doorbell is not in use */
3015 if ((readl(&ioc->chip->Doorbell) & MPI2_DOORBELL_USED)) {
3016 printk(MPT2SAS_ERR_FMT "doorbell is in use "
3017 " (line=%d)\n", ioc->name, __LINE__);
3018 return -EFAULT;
3019 }
3020
3021 /* clear pending doorbell interrupts from previous state changes */
3022 if (readl(&ioc->chip->HostInterruptStatus) &
3023 MPI2_HIS_IOC2SYS_DB_STATUS)
3024 writel(0, &ioc->chip->HostInterruptStatus);
3025
3026 /* send message to ioc */
3027 writel(((MPI2_FUNCTION_HANDSHAKE<<MPI2_DOORBELL_FUNCTION_SHIFT) |
3028 ((request_bytes/4)<<MPI2_DOORBELL_ADD_DWORDS_SHIFT)),
3029 &ioc->chip->Doorbell);
3030
Kashyap, Desai29786e12009-09-14 11:06:21 +05303031 if ((_base_wait_for_doorbell_int(ioc, 5, NO_SLEEP))) {
Eric Moore635374e2009-03-09 01:21:12 -06003032 printk(MPT2SAS_ERR_FMT "doorbell handshake "
3033 "int failed (line=%d)\n", ioc->name, __LINE__);
3034 return -EFAULT;
3035 }
3036 writel(0, &ioc->chip->HostInterruptStatus);
3037
3038 if ((_base_wait_for_doorbell_ack(ioc, 5, sleep_flag))) {
3039 printk(MPT2SAS_ERR_FMT "doorbell handshake "
3040 "ack failed (line=%d)\n", ioc->name, __LINE__);
3041 return -EFAULT;
3042 }
3043
3044 /* send message 32-bits at a time */
3045 for (i = 0, failed = 0; i < request_bytes/4 && !failed; i++) {
3046 writel(cpu_to_le32(request[i]), &ioc->chip->Doorbell);
3047 if ((_base_wait_for_doorbell_ack(ioc, 5, sleep_flag)))
3048 failed = 1;
3049 }
3050
3051 if (failed) {
3052 printk(MPT2SAS_ERR_FMT "doorbell handshake "
3053 "sending request failed (line=%d)\n", ioc->name, __LINE__);
3054 return -EFAULT;
3055 }
3056
3057 /* now wait for the reply */
3058 if ((_base_wait_for_doorbell_int(ioc, timeout, sleep_flag))) {
3059 printk(MPT2SAS_ERR_FMT "doorbell handshake "
3060 "int failed (line=%d)\n", ioc->name, __LINE__);
3061 return -EFAULT;
3062 }
3063
3064 /* read the first two 16-bits, it gives the total length of the reply */
3065 reply[0] = le16_to_cpu(readl(&ioc->chip->Doorbell)
3066 & MPI2_DOORBELL_DATA_MASK);
3067 writel(0, &ioc->chip->HostInterruptStatus);
3068 if ((_base_wait_for_doorbell_int(ioc, 5, sleep_flag))) {
3069 printk(MPT2SAS_ERR_FMT "doorbell handshake "
3070 "int failed (line=%d)\n", ioc->name, __LINE__);
3071 return -EFAULT;
3072 }
3073 reply[1] = le16_to_cpu(readl(&ioc->chip->Doorbell)
3074 & MPI2_DOORBELL_DATA_MASK);
3075 writel(0, &ioc->chip->HostInterruptStatus);
3076
3077 for (i = 2; i < default_reply->MsgLength * 2; i++) {
3078 if ((_base_wait_for_doorbell_int(ioc, 5, sleep_flag))) {
3079 printk(MPT2SAS_ERR_FMT "doorbell "
3080 "handshake int failed (line=%d)\n", ioc->name,
3081 __LINE__);
3082 return -EFAULT;
3083 }
3084 if (i >= reply_bytes/2) /* overflow case */
3085 dummy = readl(&ioc->chip->Doorbell);
3086 else
3087 reply[i] = le16_to_cpu(readl(&ioc->chip->Doorbell)
3088 & MPI2_DOORBELL_DATA_MASK);
3089 writel(0, &ioc->chip->HostInterruptStatus);
3090 }
3091
3092 _base_wait_for_doorbell_int(ioc, 5, sleep_flag);
3093 if (_base_wait_for_doorbell_not_used(ioc, 5, sleep_flag) != 0) {
3094 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "doorbell is in use "
3095 " (line=%d)\n", ioc->name, __LINE__));
3096 }
3097 writel(0, &ioc->chip->HostInterruptStatus);
3098
3099 if (ioc->logging_level & MPT_DEBUG_INIT) {
Kashyap, Desaic97951e2011-06-14 10:54:56 +05303100 mfp = (__le32 *)reply;
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303101 printk(KERN_INFO "\toffset:data\n");
Eric Moore635374e2009-03-09 01:21:12 -06003102 for (i = 0; i < reply_bytes/4; i++)
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303103 printk(KERN_INFO "\t[0x%02x]:%08x\n", i*4,
Eric Moore635374e2009-03-09 01:21:12 -06003104 le32_to_cpu(mfp[i]));
3105 }
3106 return 0;
3107}
3108
3109/**
3110 * mpt2sas_base_sas_iounit_control - send sas iounit control to FW
3111 * @ioc: per adapter object
3112 * @mpi_reply: the reply payload from FW
3113 * @mpi_request: the request payload sent to FW
3114 *
3115 * The SAS IO Unit Control Request message allows the host to perform low-level
3116 * operations, such as resets on the PHYs of the IO Unit, also allows the host
3117 * to obtain the IOC assigned device handles for a device if it has other
3118 * identifying information about the device, in addition allows the host to
3119 * remove IOC resources associated with the device.
3120 *
3121 * Returns 0 for success, non-zero for failure.
3122 */
3123int
3124mpt2sas_base_sas_iounit_control(struct MPT2SAS_ADAPTER *ioc,
3125 Mpi2SasIoUnitControlReply_t *mpi_reply,
3126 Mpi2SasIoUnitControlRequest_t *mpi_request)
3127{
3128 u16 smid;
3129 u32 ioc_state;
3130 unsigned long timeleft;
3131 u8 issue_reset;
3132 int rc;
3133 void *request;
3134 u16 wait_state_count;
3135
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303136 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06003137 __func__));
3138
3139 mutex_lock(&ioc->base_cmds.mutex);
3140
3141 if (ioc->base_cmds.status != MPT2_CMD_NOT_USED) {
3142 printk(MPT2SAS_ERR_FMT "%s: base_cmd in use\n",
3143 ioc->name, __func__);
3144 rc = -EAGAIN;
3145 goto out;
3146 }
3147
3148 wait_state_count = 0;
3149 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
3150 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
3151 if (wait_state_count++ == 10) {
3152 printk(MPT2SAS_ERR_FMT
3153 "%s: failed due to ioc not operational\n",
3154 ioc->name, __func__);
3155 rc = -EFAULT;
3156 goto out;
3157 }
3158 ssleep(1);
3159 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
3160 printk(MPT2SAS_INFO_FMT "%s: waiting for "
3161 "operational state(count=%d)\n", ioc->name,
3162 __func__, wait_state_count);
3163 }
3164
3165 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx);
3166 if (!smid) {
3167 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
3168 ioc->name, __func__);
3169 rc = -EAGAIN;
3170 goto out;
3171 }
3172
3173 rc = 0;
3174 ioc->base_cmds.status = MPT2_CMD_PENDING;
3175 request = mpt2sas_base_get_msg_frame(ioc, smid);
3176 ioc->base_cmds.smid = smid;
3177 memcpy(request, mpi_request, sizeof(Mpi2SasIoUnitControlRequest_t));
3178 if (mpi_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET ||
3179 mpi_request->Operation == MPI2_SAS_OP_PHY_LINK_RESET)
3180 ioc->ioc_link_reset_in_progress = 1;
Kashyap, Desaibcfb6e62009-09-14 11:05:24 +05303181 init_completion(&ioc->base_cmds.done);
nagalakshmi.nandigama@lsi.comf01690d2011-12-01 07:43:58 +05303182 mpt2sas_base_put_smid_default(ioc, smid);
Eric Moore635374e2009-03-09 01:21:12 -06003183 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done,
3184 msecs_to_jiffies(10000));
3185 if ((mpi_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET ||
3186 mpi_request->Operation == MPI2_SAS_OP_PHY_LINK_RESET) &&
3187 ioc->ioc_link_reset_in_progress)
3188 ioc->ioc_link_reset_in_progress = 0;
3189 if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) {
3190 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
3191 ioc->name, __func__);
3192 _debug_dump_mf(mpi_request,
3193 sizeof(Mpi2SasIoUnitControlRequest_t)/4);
3194 if (!(ioc->base_cmds.status & MPT2_CMD_RESET))
3195 issue_reset = 1;
3196 goto issue_host_reset;
3197 }
3198 if (ioc->base_cmds.status & MPT2_CMD_REPLY_VALID)
3199 memcpy(mpi_reply, ioc->base_cmds.reply,
3200 sizeof(Mpi2SasIoUnitControlReply_t));
3201 else
3202 memset(mpi_reply, 0, sizeof(Mpi2SasIoUnitControlReply_t));
3203 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
3204 goto out;
3205
3206 issue_host_reset:
3207 if (issue_reset)
3208 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
3209 FORCE_BIG_HAMMER);
3210 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
3211 rc = -EFAULT;
3212 out:
3213 mutex_unlock(&ioc->base_cmds.mutex);
3214 return rc;
3215}
3216
3217
3218/**
3219 * mpt2sas_base_scsi_enclosure_processor - sending request to sep device
3220 * @ioc: per adapter object
3221 * @mpi_reply: the reply payload from FW
3222 * @mpi_request: the request payload sent to FW
3223 *
3224 * The SCSI Enclosure Processor request message causes the IOC to
3225 * communicate with SES devices to control LED status signals.
3226 *
3227 * Returns 0 for success, non-zero for failure.
3228 */
3229int
3230mpt2sas_base_scsi_enclosure_processor(struct MPT2SAS_ADAPTER *ioc,
3231 Mpi2SepReply_t *mpi_reply, Mpi2SepRequest_t *mpi_request)
3232{
3233 u16 smid;
3234 u32 ioc_state;
3235 unsigned long timeleft;
3236 u8 issue_reset;
3237 int rc;
3238 void *request;
3239 u16 wait_state_count;
3240
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303241 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06003242 __func__));
3243
3244 mutex_lock(&ioc->base_cmds.mutex);
3245
3246 if (ioc->base_cmds.status != MPT2_CMD_NOT_USED) {
3247 printk(MPT2SAS_ERR_FMT "%s: base_cmd in use\n",
3248 ioc->name, __func__);
3249 rc = -EAGAIN;
3250 goto out;
3251 }
3252
3253 wait_state_count = 0;
3254 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
3255 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
3256 if (wait_state_count++ == 10) {
3257 printk(MPT2SAS_ERR_FMT
3258 "%s: failed due to ioc not operational\n",
3259 ioc->name, __func__);
3260 rc = -EFAULT;
3261 goto out;
3262 }
3263 ssleep(1);
3264 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
3265 printk(MPT2SAS_INFO_FMT "%s: waiting for "
3266 "operational state(count=%d)\n", ioc->name,
3267 __func__, wait_state_count);
3268 }
3269
3270 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx);
3271 if (!smid) {
3272 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
3273 ioc->name, __func__);
3274 rc = -EAGAIN;
3275 goto out;
3276 }
3277
3278 rc = 0;
3279 ioc->base_cmds.status = MPT2_CMD_PENDING;
3280 request = mpt2sas_base_get_msg_frame(ioc, smid);
3281 ioc->base_cmds.smid = smid;
3282 memcpy(request, mpi_request, sizeof(Mpi2SepReply_t));
Kashyap, Desaibcfb6e62009-09-14 11:05:24 +05303283 init_completion(&ioc->base_cmds.done);
nagalakshmi.nandigama@lsi.comf01690d2011-12-01 07:43:58 +05303284 mpt2sas_base_put_smid_default(ioc, smid);
Eric Moore635374e2009-03-09 01:21:12 -06003285 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done,
3286 msecs_to_jiffies(10000));
3287 if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) {
3288 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
3289 ioc->name, __func__);
3290 _debug_dump_mf(mpi_request,
3291 sizeof(Mpi2SepRequest_t)/4);
3292 if (!(ioc->base_cmds.status & MPT2_CMD_RESET))
3293 issue_reset = 1;
3294 goto issue_host_reset;
3295 }
3296 if (ioc->base_cmds.status & MPT2_CMD_REPLY_VALID)
3297 memcpy(mpi_reply, ioc->base_cmds.reply,
3298 sizeof(Mpi2SepReply_t));
3299 else
3300 memset(mpi_reply, 0, sizeof(Mpi2SepReply_t));
3301 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
3302 goto out;
3303
3304 issue_host_reset:
3305 if (issue_reset)
3306 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
3307 FORCE_BIG_HAMMER);
3308 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
3309 rc = -EFAULT;
3310 out:
3311 mutex_unlock(&ioc->base_cmds.mutex);
3312 return rc;
3313}
3314
3315/**
3316 * _base_get_port_facts - obtain port facts reply and save in ioc
3317 * @ioc: per adapter object
3318 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3319 *
3320 * Returns 0 for success, non-zero for failure.
3321 */
3322static int
3323_base_get_port_facts(struct MPT2SAS_ADAPTER *ioc, int port, int sleep_flag)
3324{
3325 Mpi2PortFactsRequest_t mpi_request;
Kashyap, Desaic97951e2011-06-14 10:54:56 +05303326 Mpi2PortFactsReply_t mpi_reply;
3327 struct mpt2sas_port_facts *pfacts;
Eric Moore635374e2009-03-09 01:21:12 -06003328 int mpi_reply_sz, mpi_request_sz, r;
3329
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303330 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06003331 __func__));
3332
3333 mpi_reply_sz = sizeof(Mpi2PortFactsReply_t);
3334 mpi_request_sz = sizeof(Mpi2PortFactsRequest_t);
3335 memset(&mpi_request, 0, mpi_request_sz);
3336 mpi_request.Function = MPI2_FUNCTION_PORT_FACTS;
3337 mpi_request.PortNumber = port;
3338 r = _base_handshake_req_reply_wait(ioc, mpi_request_sz,
3339 (u32 *)&mpi_request, mpi_reply_sz, (u16 *)&mpi_reply, 5, CAN_SLEEP);
3340
3341 if (r != 0) {
3342 printk(MPT2SAS_ERR_FMT "%s: handshake failed (r=%d)\n",
3343 ioc->name, __func__, r);
3344 return r;
3345 }
3346
3347 pfacts = &ioc->pfacts[port];
3348 memset(pfacts, 0, sizeof(Mpi2PortFactsReply_t));
3349 pfacts->PortNumber = mpi_reply.PortNumber;
3350 pfacts->VP_ID = mpi_reply.VP_ID;
3351 pfacts->VF_ID = mpi_reply.VF_ID;
3352 pfacts->MaxPostedCmdBuffers =
3353 le16_to_cpu(mpi_reply.MaxPostedCmdBuffers);
3354
3355 return 0;
3356}
3357
3358/**
3359 * _base_get_ioc_facts - obtain ioc facts reply and save in ioc
3360 * @ioc: per adapter object
3361 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3362 *
3363 * Returns 0 for success, non-zero for failure.
3364 */
3365static int
3366_base_get_ioc_facts(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
3367{
3368 Mpi2IOCFactsRequest_t mpi_request;
Kashyap, Desaic97951e2011-06-14 10:54:56 +05303369 Mpi2IOCFactsReply_t mpi_reply;
3370 struct mpt2sas_facts *facts;
Eric Moore635374e2009-03-09 01:21:12 -06003371 int mpi_reply_sz, mpi_request_sz, r;
3372
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303373 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06003374 __func__));
3375
3376 mpi_reply_sz = sizeof(Mpi2IOCFactsReply_t);
3377 mpi_request_sz = sizeof(Mpi2IOCFactsRequest_t);
3378 memset(&mpi_request, 0, mpi_request_sz);
3379 mpi_request.Function = MPI2_FUNCTION_IOC_FACTS;
3380 r = _base_handshake_req_reply_wait(ioc, mpi_request_sz,
3381 (u32 *)&mpi_request, mpi_reply_sz, (u16 *)&mpi_reply, 5, CAN_SLEEP);
3382
3383 if (r != 0) {
3384 printk(MPT2SAS_ERR_FMT "%s: handshake failed (r=%d)\n",
3385 ioc->name, __func__, r);
3386 return r;
3387 }
3388
3389 facts = &ioc->facts;
3390 memset(facts, 0, sizeof(Mpi2IOCFactsReply_t));
3391 facts->MsgVersion = le16_to_cpu(mpi_reply.MsgVersion);
3392 facts->HeaderVersion = le16_to_cpu(mpi_reply.HeaderVersion);
3393 facts->VP_ID = mpi_reply.VP_ID;
3394 facts->VF_ID = mpi_reply.VF_ID;
3395 facts->IOCExceptions = le16_to_cpu(mpi_reply.IOCExceptions);
3396 facts->MaxChainDepth = mpi_reply.MaxChainDepth;
3397 facts->WhoInit = mpi_reply.WhoInit;
3398 facts->NumberOfPorts = mpi_reply.NumberOfPorts;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05303399 facts->MaxMSIxVectors = mpi_reply.MaxMSIxVectors;
Eric Moore635374e2009-03-09 01:21:12 -06003400 facts->RequestCredit = le16_to_cpu(mpi_reply.RequestCredit);
3401 facts->MaxReplyDescriptorPostQueueDepth =
3402 le16_to_cpu(mpi_reply.MaxReplyDescriptorPostQueueDepth);
3403 facts->ProductID = le16_to_cpu(mpi_reply.ProductID);
3404 facts->IOCCapabilities = le32_to_cpu(mpi_reply.IOCCapabilities);
3405 if ((facts->IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID))
3406 ioc->ir_firmware = 1;
3407 facts->FWVersion.Word = le32_to_cpu(mpi_reply.FWVersion.Word);
3408 facts->IOCRequestFrameSize =
3409 le16_to_cpu(mpi_reply.IOCRequestFrameSize);
3410 facts->MaxInitiators = le16_to_cpu(mpi_reply.MaxInitiators);
3411 facts->MaxTargets = le16_to_cpu(mpi_reply.MaxTargets);
3412 ioc->shost->max_id = -1;
3413 facts->MaxSasExpanders = le16_to_cpu(mpi_reply.MaxSasExpanders);
3414 facts->MaxEnclosures = le16_to_cpu(mpi_reply.MaxEnclosures);
3415 facts->ProtocolFlags = le16_to_cpu(mpi_reply.ProtocolFlags);
3416 facts->HighPriorityCredit =
3417 le16_to_cpu(mpi_reply.HighPriorityCredit);
3418 facts->ReplyFrameSize = mpi_reply.ReplyFrameSize;
3419 facts->MaxDevHandle = le16_to_cpu(mpi_reply.MaxDevHandle);
3420
3421 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "hba queue depth(%d), "
3422 "max chains per io(%d)\n", ioc->name, facts->RequestCredit,
3423 facts->MaxChainDepth));
3424 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "request frame size(%d), "
3425 "reply frame size(%d)\n", ioc->name,
3426 facts->IOCRequestFrameSize * 4, facts->ReplyFrameSize * 4));
3427 return 0;
3428}
3429
3430/**
3431 * _base_send_ioc_init - send ioc_init to firmware
3432 * @ioc: per adapter object
Eric Moore635374e2009-03-09 01:21:12 -06003433 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3434 *
3435 * Returns 0 for success, non-zero for failure.
3436 */
3437static int
Kashyap, Desai7b936b02009-09-25 11:44:41 +05303438_base_send_ioc_init(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
Eric Moore635374e2009-03-09 01:21:12 -06003439{
3440 Mpi2IOCInitRequest_t mpi_request;
3441 Mpi2IOCInitReply_t mpi_reply;
3442 int r;
Kashyap, Desaia8ebd762009-09-23 17:29:29 +05303443 struct timeval current_time;
Kashyap, Desai463217b2009-10-05 15:53:06 +05303444 u16 ioc_status;
Eric Moore635374e2009-03-09 01:21:12 -06003445
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303446 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06003447 __func__));
3448
3449 memset(&mpi_request, 0, sizeof(Mpi2IOCInitRequest_t));
3450 mpi_request.Function = MPI2_FUNCTION_IOC_INIT;
3451 mpi_request.WhoInit = MPI2_WHOINIT_HOST_DRIVER;
Kashyap, Desai7b936b02009-09-25 11:44:41 +05303452 mpi_request.VF_ID = 0; /* TODO */
3453 mpi_request.VP_ID = 0;
Eric Moore635374e2009-03-09 01:21:12 -06003454 mpi_request.MsgVersion = cpu_to_le16(MPI2_VERSION);
3455 mpi_request.HeaderVersion = cpu_to_le16(MPI2_HEADER_VERSION);
3456
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05303457 if (_base_is_controller_msix_enabled(ioc))
3458 mpi_request.HostMSIxVectors = ioc->reply_queue_count;
Eric Moore635374e2009-03-09 01:21:12 -06003459 mpi_request.SystemRequestFrameSize = cpu_to_le16(ioc->request_sz/4);
3460 mpi_request.ReplyDescriptorPostQueueDepth =
3461 cpu_to_le16(ioc->reply_post_queue_depth);
3462 mpi_request.ReplyFreeQueueDepth =
3463 cpu_to_le16(ioc->reply_free_queue_depth);
3464
Eric Moore635374e2009-03-09 01:21:12 -06003465 mpi_request.SenseBufferAddressHigh =
Kashyap, Desaic97951e2011-06-14 10:54:56 +05303466 cpu_to_le32((u64)ioc->sense_dma >> 32);
Eric Moore635374e2009-03-09 01:21:12 -06003467 mpi_request.SystemReplyAddressHigh =
Kashyap, Desaic97951e2011-06-14 10:54:56 +05303468 cpu_to_le32((u64)ioc->reply_dma >> 32);
Eric Moore635374e2009-03-09 01:21:12 -06003469 mpi_request.SystemRequestFrameBaseAddress =
Kashyap, Desaic97951e2011-06-14 10:54:56 +05303470 cpu_to_le64((u64)ioc->request_dma);
Eric Moore635374e2009-03-09 01:21:12 -06003471 mpi_request.ReplyFreeQueueAddress =
Kashyap, Desaic97951e2011-06-14 10:54:56 +05303472 cpu_to_le64((u64)ioc->reply_free_dma);
Eric Moore635374e2009-03-09 01:21:12 -06003473 mpi_request.ReplyDescriptorPostQueueAddress =
Kashyap, Desaic97951e2011-06-14 10:54:56 +05303474 cpu_to_le64((u64)ioc->reply_post_free_dma);
3475
Eric Moore635374e2009-03-09 01:21:12 -06003476
Kashyap, Desaia8ebd762009-09-23 17:29:29 +05303477 /* This time stamp specifies number of milliseconds
3478 * since epoch ~ midnight January 1, 1970.
3479 */
3480 do_gettimeofday(&current_time);
Kashyap, Desai7921b352010-03-17 16:21:33 +05303481 mpi_request.TimeStamp = cpu_to_le64((u64)current_time.tv_sec * 1000 +
3482 (current_time.tv_usec / 1000));
Kashyap, Desaia8ebd762009-09-23 17:29:29 +05303483
Eric Moore635374e2009-03-09 01:21:12 -06003484 if (ioc->logging_level & MPT_DEBUG_INIT) {
Kashyap, Desaic97951e2011-06-14 10:54:56 +05303485 __le32 *mfp;
Eric Moore635374e2009-03-09 01:21:12 -06003486 int i;
3487
Kashyap, Desaic97951e2011-06-14 10:54:56 +05303488 mfp = (__le32 *)&mpi_request;
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303489 printk(KERN_INFO "\toffset:data\n");
Eric Moore635374e2009-03-09 01:21:12 -06003490 for (i = 0; i < sizeof(Mpi2IOCInitRequest_t)/4; i++)
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303491 printk(KERN_INFO "\t[0x%02x]:%08x\n", i*4,
Eric Moore635374e2009-03-09 01:21:12 -06003492 le32_to_cpu(mfp[i]));
3493 }
3494
3495 r = _base_handshake_req_reply_wait(ioc,
3496 sizeof(Mpi2IOCInitRequest_t), (u32 *)&mpi_request,
3497 sizeof(Mpi2IOCInitReply_t), (u16 *)&mpi_reply, 10,
3498 sleep_flag);
3499
3500 if (r != 0) {
3501 printk(MPT2SAS_ERR_FMT "%s: handshake failed (r=%d)\n",
3502 ioc->name, __func__, r);
3503 return r;
3504 }
3505
Kashyap, Desai463217b2009-10-05 15:53:06 +05303506 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
3507 if (ioc_status != MPI2_IOCSTATUS_SUCCESS ||
Eric Moore635374e2009-03-09 01:21:12 -06003508 mpi_reply.IOCLogInfo) {
3509 printk(MPT2SAS_ERR_FMT "%s: failed\n", ioc->name, __func__);
3510 r = -EIO;
3511 }
3512
3513 return 0;
3514}
3515
3516/**
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303517 * mpt2sas_port_enable_done - command completion routine for port enable
3518 * @ioc: per adapter object
3519 * @smid: system request message index
3520 * @msix_index: MSIX table index supplied by the OS
3521 * @reply: reply message frame(lower 32bit addr)
3522 *
3523 * Return 1 meaning mf should be freed from _base_interrupt
3524 * 0 means the mf is freed from this function.
3525 */
3526u8
3527mpt2sas_port_enable_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
3528 u32 reply)
3529{
3530 MPI2DefaultReply_t *mpi_reply;
3531 u16 ioc_status;
3532
3533 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
3534 if (mpi_reply && mpi_reply->Function == MPI2_FUNCTION_EVENT_ACK)
3535 return 1;
3536
3537 if (ioc->port_enable_cmds.status == MPT2_CMD_NOT_USED)
3538 return 1;
3539
3540 ioc->port_enable_cmds.status |= MPT2_CMD_COMPLETE;
3541 if (mpi_reply) {
3542 ioc->port_enable_cmds.status |= MPT2_CMD_REPLY_VALID;
3543 memcpy(ioc->port_enable_cmds.reply, mpi_reply,
3544 mpi_reply->MsgLength*4);
3545 }
3546 ioc->port_enable_cmds.status &= ~MPT2_CMD_PENDING;
3547
3548 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
3549
3550 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
3551 ioc->port_enable_failed = 1;
3552
3553 if (ioc->is_driver_loading) {
3554 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
3555 mpt2sas_port_enable_complete(ioc);
3556 return 1;
3557 } else {
3558 ioc->start_scan_failed = ioc_status;
3559 ioc->start_scan = 0;
3560 return 1;
3561 }
3562 }
3563 complete(&ioc->port_enable_cmds.done);
3564 return 1;
3565}
3566
3567
3568/**
Eric Moore635374e2009-03-09 01:21:12 -06003569 * _base_send_port_enable - send port_enable(discovery stuff) to firmware
3570 * @ioc: per adapter object
Eric Moore635374e2009-03-09 01:21:12 -06003571 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3572 *
3573 * Returns 0 for success, non-zero for failure.
3574 */
3575static int
Kashyap, Desai7b936b02009-09-25 11:44:41 +05303576_base_send_port_enable(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
Eric Moore635374e2009-03-09 01:21:12 -06003577{
3578 Mpi2PortEnableRequest_t *mpi_request;
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303579 Mpi2PortEnableReply_t *mpi_reply;
Eric Moore635374e2009-03-09 01:21:12 -06003580 unsigned long timeleft;
3581 int r = 0;
3582 u16 smid;
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303583 u16 ioc_status;
Eric Moore635374e2009-03-09 01:21:12 -06003584
3585 printk(MPT2SAS_INFO_FMT "sending port enable !!\n", ioc->name);
3586
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303587 if (ioc->port_enable_cmds.status & MPT2_CMD_PENDING) {
Eric Moore635374e2009-03-09 01:21:12 -06003588 printk(MPT2SAS_ERR_FMT "%s: internal command already in use\n",
3589 ioc->name, __func__);
3590 return -EAGAIN;
3591 }
3592
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303593 smid = mpt2sas_base_get_smid(ioc, ioc->port_enable_cb_idx);
Eric Moore635374e2009-03-09 01:21:12 -06003594 if (!smid) {
3595 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
3596 ioc->name, __func__);
3597 return -EAGAIN;
3598 }
3599
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303600 ioc->port_enable_cmds.status = MPT2_CMD_PENDING;
Eric Moore635374e2009-03-09 01:21:12 -06003601 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303602 ioc->port_enable_cmds.smid = smid;
Eric Moore635374e2009-03-09 01:21:12 -06003603 memset(mpi_request, 0, sizeof(Mpi2PortEnableRequest_t));
3604 mpi_request->Function = MPI2_FUNCTION_PORT_ENABLE;
Eric Moore635374e2009-03-09 01:21:12 -06003605
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303606 init_completion(&ioc->port_enable_cmds.done);
Kashyap, Desai7b936b02009-09-25 11:44:41 +05303607 mpt2sas_base_put_smid_default(ioc, smid);
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303608 timeleft = wait_for_completion_timeout(&ioc->port_enable_cmds.done,
Eric Moore635374e2009-03-09 01:21:12 -06003609 300*HZ);
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303610 if (!(ioc->port_enable_cmds.status & MPT2_CMD_COMPLETE)) {
Eric Moore635374e2009-03-09 01:21:12 -06003611 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
3612 ioc->name, __func__);
3613 _debug_dump_mf(mpi_request,
3614 sizeof(Mpi2PortEnableRequest_t)/4);
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303615 if (ioc->port_enable_cmds.status & MPT2_CMD_RESET)
Eric Moore635374e2009-03-09 01:21:12 -06003616 r = -EFAULT;
3617 else
3618 r = -ETIME;
3619 goto out;
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303620 }
3621 mpi_reply = ioc->port_enable_cmds.reply;
Eric Moore635374e2009-03-09 01:21:12 -06003622
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303623 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
3624 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3625 printk(MPT2SAS_ERR_FMT "%s: failed with (ioc_status=0x%08x)\n",
3626 ioc->name, __func__, ioc_status);
Eric Moore635374e2009-03-09 01:21:12 -06003627 r = -EFAULT;
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303628 goto out;
Eric Moore635374e2009-03-09 01:21:12 -06003629 }
3630 out:
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303631 ioc->port_enable_cmds.status = MPT2_CMD_NOT_USED;
3632 printk(MPT2SAS_INFO_FMT "port enable: %s\n", ioc->name, ((r == 0) ?
3633 "SUCCESS" : "FAILED"));
Eric Moore635374e2009-03-09 01:21:12 -06003634 return r;
3635}
3636
3637/**
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303638 * mpt2sas_port_enable - initiate firmware discovery (don't wait for reply)
3639 * @ioc: per adapter object
3640 *
3641 * Returns 0 for success, non-zero for failure.
3642 */
3643int
3644mpt2sas_port_enable(struct MPT2SAS_ADAPTER *ioc)
3645{
3646 Mpi2PortEnableRequest_t *mpi_request;
3647 u16 smid;
3648
3649 printk(MPT2SAS_INFO_FMT "sending port enable !!\n", ioc->name);
3650
3651 if (ioc->port_enable_cmds.status & MPT2_CMD_PENDING) {
3652 printk(MPT2SAS_ERR_FMT "%s: internal command already in use\n",
3653 ioc->name, __func__);
3654 return -EAGAIN;
3655 }
3656
3657 smid = mpt2sas_base_get_smid(ioc, ioc->port_enable_cb_idx);
3658 if (!smid) {
3659 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
3660 ioc->name, __func__);
3661 return -EAGAIN;
3662 }
3663
3664 ioc->port_enable_cmds.status = MPT2_CMD_PENDING;
3665 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3666 ioc->port_enable_cmds.smid = smid;
3667 memset(mpi_request, 0, sizeof(Mpi2PortEnableRequest_t));
3668 mpi_request->Function = MPI2_FUNCTION_PORT_ENABLE;
3669
3670 mpt2sas_base_put_smid_default(ioc, smid);
3671 return 0;
3672}
3673
3674/**
3675 * _base_determine_wait_on_discovery - desposition
3676 * @ioc: per adapter object
3677 *
3678 * Decide whether to wait on discovery to complete. Used to either
3679 * locate boot device, or report volumes ahead of physical devices.
3680 *
3681 * Returns 1 for wait, 0 for don't wait
3682 */
3683static int
3684_base_determine_wait_on_discovery(struct MPT2SAS_ADAPTER *ioc)
3685{
3686 /* We wait for discovery to complete if IR firmware is loaded.
3687 * The sas topology events arrive before PD events, so we need time to
3688 * turn on the bit in ioc->pd_handles to indicate PD
3689 * Also, it maybe required to report Volumes ahead of physical
3690 * devices when MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING is set.
3691 */
3692 if (ioc->ir_firmware)
3693 return 1;
3694
3695 /* if no Bios, then we don't need to wait */
3696 if (!ioc->bios_pg3.BiosVersion)
3697 return 0;
3698
3699 /* Bios is present, then we drop down here.
3700 *
3701 * If there any entries in the Bios Page 2, then we wait
3702 * for discovery to complete.
3703 */
3704
3705 /* Current Boot Device */
3706 if ((ioc->bios_pg2.CurrentBootDeviceForm &
3707 MPI2_BIOSPAGE2_FORM_MASK) ==
3708 MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED &&
3709 /* Request Boot Device */
3710 (ioc->bios_pg2.ReqBootDeviceForm &
3711 MPI2_BIOSPAGE2_FORM_MASK) ==
3712 MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED &&
3713 /* Alternate Request Boot Device */
3714 (ioc->bios_pg2.ReqAltBootDeviceForm &
3715 MPI2_BIOSPAGE2_FORM_MASK) ==
3716 MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED)
3717 return 0;
3718
3719 return 1;
3720}
3721
3722
3723/**
Eric Moore635374e2009-03-09 01:21:12 -06003724 * _base_unmask_events - turn on notification for this event
3725 * @ioc: per adapter object
3726 * @event: firmware event
3727 *
3728 * The mask is stored in ioc->event_masks.
3729 */
3730static void
3731_base_unmask_events(struct MPT2SAS_ADAPTER *ioc, u16 event)
3732{
3733 u32 desired_event;
3734
3735 if (event >= 128)
3736 return;
3737
3738 desired_event = (1 << (event % 32));
3739
3740 if (event < 32)
3741 ioc->event_masks[0] &= ~desired_event;
3742 else if (event < 64)
3743 ioc->event_masks[1] &= ~desired_event;
3744 else if (event < 96)
3745 ioc->event_masks[2] &= ~desired_event;
3746 else if (event < 128)
3747 ioc->event_masks[3] &= ~desired_event;
3748}
3749
3750/**
3751 * _base_event_notification - send event notification
3752 * @ioc: per adapter object
Eric Moore635374e2009-03-09 01:21:12 -06003753 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3754 *
3755 * Returns 0 for success, non-zero for failure.
3756 */
3757static int
Kashyap, Desai7b936b02009-09-25 11:44:41 +05303758_base_event_notification(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
Eric Moore635374e2009-03-09 01:21:12 -06003759{
3760 Mpi2EventNotificationRequest_t *mpi_request;
3761 unsigned long timeleft;
3762 u16 smid;
3763 int r = 0;
3764 int i;
3765
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303766 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06003767 __func__));
3768
3769 if (ioc->base_cmds.status & MPT2_CMD_PENDING) {
3770 printk(MPT2SAS_ERR_FMT "%s: internal command already in use\n",
3771 ioc->name, __func__);
3772 return -EAGAIN;
3773 }
3774
3775 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx);
3776 if (!smid) {
3777 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
3778 ioc->name, __func__);
3779 return -EAGAIN;
3780 }
3781 ioc->base_cmds.status = MPT2_CMD_PENDING;
3782 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3783 ioc->base_cmds.smid = smid;
3784 memset(mpi_request, 0, sizeof(Mpi2EventNotificationRequest_t));
3785 mpi_request->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
Kashyap, Desai7b936b02009-09-25 11:44:41 +05303786 mpi_request->VF_ID = 0; /* TODO */
3787 mpi_request->VP_ID = 0;
Eric Moore635374e2009-03-09 01:21:12 -06003788 for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++)
3789 mpi_request->EventMasks[i] =
Kashyap, Desaie94f6742010-03-17 16:24:52 +05303790 cpu_to_le32(ioc->event_masks[i]);
Kashyap, Desaibcfb6e62009-09-14 11:05:24 +05303791 init_completion(&ioc->base_cmds.done);
nagalakshmi.nandigama@lsi.comf01690d2011-12-01 07:43:58 +05303792 mpt2sas_base_put_smid_default(ioc, smid);
Eric Moore635374e2009-03-09 01:21:12 -06003793 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done, 30*HZ);
3794 if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) {
3795 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
3796 ioc->name, __func__);
3797 _debug_dump_mf(mpi_request,
3798 sizeof(Mpi2EventNotificationRequest_t)/4);
3799 if (ioc->base_cmds.status & MPT2_CMD_RESET)
3800 r = -EFAULT;
3801 else
3802 r = -ETIME;
3803 } else
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303804 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: complete\n",
Eric Moore635374e2009-03-09 01:21:12 -06003805 ioc->name, __func__));
3806 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
3807 return r;
3808}
3809
3810/**
3811 * mpt2sas_base_validate_event_type - validating event types
3812 * @ioc: per adapter object
3813 * @event: firmware event
3814 *
3815 * This will turn on firmware event notification when application
3816 * ask for that event. We don't mask events that are already enabled.
3817 */
3818void
3819mpt2sas_base_validate_event_type(struct MPT2SAS_ADAPTER *ioc, u32 *event_type)
3820{
3821 int i, j;
3822 u32 event_mask, desired_event;
3823 u8 send_update_to_fw;
3824
3825 for (i = 0, send_update_to_fw = 0; i <
3826 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++) {
3827 event_mask = ~event_type[i];
3828 desired_event = 1;
3829 for (j = 0; j < 32; j++) {
3830 if (!(event_mask & desired_event) &&
3831 (ioc->event_masks[i] & desired_event)) {
3832 ioc->event_masks[i] &= ~desired_event;
3833 send_update_to_fw = 1;
3834 }
3835 desired_event = (desired_event << 1);
3836 }
3837 }
3838
3839 if (!send_update_to_fw)
3840 return;
3841
3842 mutex_lock(&ioc->base_cmds.mutex);
Kashyap, Desai7b936b02009-09-25 11:44:41 +05303843 _base_event_notification(ioc, CAN_SLEEP);
Eric Moore635374e2009-03-09 01:21:12 -06003844 mutex_unlock(&ioc->base_cmds.mutex);
3845}
3846
3847/**
3848 * _base_diag_reset - the "big hammer" start of day reset
3849 * @ioc: per adapter object
3850 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3851 *
3852 * Returns 0 for success, non-zero for failure.
3853 */
3854static int
3855_base_diag_reset(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
3856{
3857 u32 host_diagnostic;
3858 u32 ioc_state;
3859 u32 count;
3860 u32 hcb_size;
3861
3862 printk(MPT2SAS_INFO_FMT "sending diag reset !!\n", ioc->name);
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303863 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "clear interrupts\n",
Eric Moore635374e2009-03-09 01:21:12 -06003864 ioc->name));
Eric Moore635374e2009-03-09 01:21:12 -06003865
3866 count = 0;
3867 do {
3868 /* Write magic sequence to WriteSequence register
3869 * Loop until in diagnostic mode
3870 */
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303871 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "write magic "
Eric Moore635374e2009-03-09 01:21:12 -06003872 "sequence\n", ioc->name));
3873 writel(MPI2_WRSEQ_FLUSH_KEY_VALUE, &ioc->chip->WriteSequence);
3874 writel(MPI2_WRSEQ_1ST_KEY_VALUE, &ioc->chip->WriteSequence);
3875 writel(MPI2_WRSEQ_2ND_KEY_VALUE, &ioc->chip->WriteSequence);
3876 writel(MPI2_WRSEQ_3RD_KEY_VALUE, &ioc->chip->WriteSequence);
3877 writel(MPI2_WRSEQ_4TH_KEY_VALUE, &ioc->chip->WriteSequence);
3878 writel(MPI2_WRSEQ_5TH_KEY_VALUE, &ioc->chip->WriteSequence);
3879 writel(MPI2_WRSEQ_6TH_KEY_VALUE, &ioc->chip->WriteSequence);
3880
3881 /* wait 100 msec */
3882 if (sleep_flag == CAN_SLEEP)
3883 msleep(100);
3884 else
3885 mdelay(100);
3886
3887 if (count++ > 20)
3888 goto out;
3889
3890 host_diagnostic = readl(&ioc->chip->HostDiagnostic);
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303891 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "wrote magic "
Eric Moore635374e2009-03-09 01:21:12 -06003892 "sequence: count(%d), host_diagnostic(0x%08x)\n",
3893 ioc->name, count, host_diagnostic));
3894
3895 } while ((host_diagnostic & MPI2_DIAG_DIAG_WRITE_ENABLE) == 0);
3896
3897 hcb_size = readl(&ioc->chip->HCBSize);
3898
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303899 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "diag reset: issued\n",
Eric Moore635374e2009-03-09 01:21:12 -06003900 ioc->name));
3901 writel(host_diagnostic | MPI2_DIAG_RESET_ADAPTER,
3902 &ioc->chip->HostDiagnostic);
3903
3904 /* don't access any registers for 50 milliseconds */
3905 msleep(50);
3906
3907 /* 300 second max wait */
3908 for (count = 0; count < 3000000 ; count++) {
3909
3910 host_diagnostic = readl(&ioc->chip->HostDiagnostic);
3911
3912 if (host_diagnostic == 0xFFFFFFFF)
3913 goto out;
3914 if (!(host_diagnostic & MPI2_DIAG_RESET_ADAPTER))
3915 break;
3916
3917 /* wait 100 msec */
3918 if (sleep_flag == CAN_SLEEP)
3919 msleep(1);
3920 else
3921 mdelay(1);
3922 }
3923
3924 if (host_diagnostic & MPI2_DIAG_HCB_MODE) {
3925
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303926 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "restart the adapter "
Eric Moore635374e2009-03-09 01:21:12 -06003927 "assuming the HCB Address points to good F/W\n",
3928 ioc->name));
3929 host_diagnostic &= ~MPI2_DIAG_BOOT_DEVICE_SELECT_MASK;
3930 host_diagnostic |= MPI2_DIAG_BOOT_DEVICE_SELECT_HCDW;
3931 writel(host_diagnostic, &ioc->chip->HostDiagnostic);
3932
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303933 drsprintk(ioc, printk(MPT2SAS_INFO_FMT
Eric Moore635374e2009-03-09 01:21:12 -06003934 "re-enable the HCDW\n", ioc->name));
3935 writel(hcb_size | MPI2_HCB_SIZE_HCB_ENABLE,
3936 &ioc->chip->HCBSize);
3937 }
3938
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303939 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "restart the adapter\n",
Eric Moore635374e2009-03-09 01:21:12 -06003940 ioc->name));
3941 writel(host_diagnostic & ~MPI2_DIAG_HOLD_IOC_RESET,
3942 &ioc->chip->HostDiagnostic);
3943
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303944 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "disable writes to the "
Eric Moore635374e2009-03-09 01:21:12 -06003945 "diagnostic register\n", ioc->name));
3946 writel(MPI2_WRSEQ_FLUSH_KEY_VALUE, &ioc->chip->WriteSequence);
3947
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303948 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "Wait for FW to go to the "
Eric Moore635374e2009-03-09 01:21:12 -06003949 "READY state\n", ioc->name));
3950 ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY, 20,
3951 sleep_flag);
3952 if (ioc_state) {
3953 printk(MPT2SAS_ERR_FMT "%s: failed going to ready state "
3954 " (ioc_state=0x%x)\n", ioc->name, __func__, ioc_state);
3955 goto out;
3956 }
3957
Eric Moore635374e2009-03-09 01:21:12 -06003958 printk(MPT2SAS_INFO_FMT "diag reset: SUCCESS\n", ioc->name);
3959 return 0;
3960
3961 out:
3962 printk(MPT2SAS_ERR_FMT "diag reset: FAILED\n", ioc->name);
3963 return -EFAULT;
3964}
3965
3966/**
3967 * _base_make_ioc_ready - put controller in READY state
3968 * @ioc: per adapter object
3969 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3970 * @type: FORCE_BIG_HAMMER or SOFT_RESET
3971 *
3972 * Returns 0 for success, non-zero for failure.
3973 */
3974static int
3975_base_make_ioc_ready(struct MPT2SAS_ADAPTER *ioc, int sleep_flag,
3976 enum reset_type type)
3977{
3978 u32 ioc_state;
Kashyap, Desaid32a8c12010-06-17 13:36:53 +05303979 int rc;
Eric Moore635374e2009-03-09 01:21:12 -06003980
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303981 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06003982 __func__));
3983
Eric Moore3cb54692010-07-08 14:44:34 -06003984 if (ioc->pci_error_recovery)
3985 return 0;
3986
Eric Moore635374e2009-03-09 01:21:12 -06003987 ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303988 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: ioc_state(0x%08x)\n",
Eric Moore635374e2009-03-09 01:21:12 -06003989 ioc->name, __func__, ioc_state));
3990
3991 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_READY)
3992 return 0;
3993
3994 if (ioc_state & MPI2_DOORBELL_USED) {
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303995 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "unexpected doorbell "
Eric Moore635374e2009-03-09 01:21:12 -06003996 "active!\n", ioc->name));
3997 goto issue_diag_reset;
3998 }
3999
4000 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
4001 mpt2sas_base_fault_info(ioc, ioc_state &
4002 MPI2_DOORBELL_DATA_MASK);
4003 goto issue_diag_reset;
4004 }
4005
4006 if (type == FORCE_BIG_HAMMER)
4007 goto issue_diag_reset;
4008
4009 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_OPERATIONAL)
4010 if (!(_base_send_ioc_reset(ioc,
Kashyap, Desaid32a8c12010-06-17 13:36:53 +05304011 MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET, 15, CAN_SLEEP))) {
4012 ioc->ioc_reset_count++;
Eric Moore635374e2009-03-09 01:21:12 -06004013 return 0;
Kashyap, Desaid32a8c12010-06-17 13:36:53 +05304014 }
Eric Moore635374e2009-03-09 01:21:12 -06004015
4016 issue_diag_reset:
Kashyap, Desaid32a8c12010-06-17 13:36:53 +05304017 rc = _base_diag_reset(ioc, CAN_SLEEP);
4018 ioc->ioc_reset_count++;
4019 return rc;
Eric Moore635374e2009-03-09 01:21:12 -06004020}
4021
4022/**
4023 * _base_make_ioc_operational - put controller in OPERATIONAL state
4024 * @ioc: per adapter object
Eric Moore635374e2009-03-09 01:21:12 -06004025 * @sleep_flag: CAN_SLEEP or NO_SLEEP
4026 *
4027 * Returns 0 for success, non-zero for failure.
4028 */
4029static int
Kashyap, Desai7b936b02009-09-25 11:44:41 +05304030_base_make_ioc_operational(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
Eric Moore635374e2009-03-09 01:21:12 -06004031{
4032 int r, i;
4033 unsigned long flags;
4034 u32 reply_address;
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05304035 u16 smid;
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05304036 struct _tr_list *delayed_tr, *delayed_tr_next;
Kashyap, Desai0bdccdb2011-04-07 12:32:49 +05304037 u8 hide_flag;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05304038 struct adapter_reply_queue *reply_q;
4039 long reply_post_free;
4040 u32 reply_post_free_sz;
Eric Moore635374e2009-03-09 01:21:12 -06004041
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304042 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06004043 __func__));
4044
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05304045 /* clean the delayed target reset list */
4046 list_for_each_entry_safe(delayed_tr, delayed_tr_next,
4047 &ioc->delayed_tr_list, list) {
4048 list_del(&delayed_tr->list);
4049 kfree(delayed_tr);
4050 }
4051
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05304052 list_for_each_entry_safe(delayed_tr, delayed_tr_next,
4053 &ioc->delayed_tr_volume_list, list) {
4054 list_del(&delayed_tr->list);
4055 kfree(delayed_tr);
4056 }
4057
Eric Moore635374e2009-03-09 01:21:12 -06004058 /* initialize the scsi lookup free list */
4059 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
4060 INIT_LIST_HEAD(&ioc->free_list);
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05304061 smid = 1;
4062 for (i = 0; i < ioc->scsiio_depth; i++, smid++) {
Kashyap, Desai35f805b2010-11-13 04:34:06 +05304063 INIT_LIST_HEAD(&ioc->scsi_lookup[i].chain_list);
Eric Moore635374e2009-03-09 01:21:12 -06004064 ioc->scsi_lookup[i].cb_idx = 0xFF;
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05304065 ioc->scsi_lookup[i].smid = smid;
4066 ioc->scsi_lookup[i].scmd = NULL;
Kashyap, Desai0bdccdb2011-04-07 12:32:49 +05304067 ioc->scsi_lookup[i].direct_io = 0;
Eric Moore635374e2009-03-09 01:21:12 -06004068 list_add_tail(&ioc->scsi_lookup[i].tracker_list,
4069 &ioc->free_list);
4070 }
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05304071
4072 /* hi-priority queue */
4073 INIT_LIST_HEAD(&ioc->hpr_free_list);
4074 smid = ioc->hi_priority_smid;
4075 for (i = 0; i < ioc->hi_priority_depth; i++, smid++) {
4076 ioc->hpr_lookup[i].cb_idx = 0xFF;
4077 ioc->hpr_lookup[i].smid = smid;
4078 list_add_tail(&ioc->hpr_lookup[i].tracker_list,
4079 &ioc->hpr_free_list);
4080 }
4081
4082 /* internal queue */
4083 INIT_LIST_HEAD(&ioc->internal_free_list);
4084 smid = ioc->internal_smid;
4085 for (i = 0; i < ioc->internal_depth; i++, smid++) {
4086 ioc->internal_lookup[i].cb_idx = 0xFF;
4087 ioc->internal_lookup[i].smid = smid;
4088 list_add_tail(&ioc->internal_lookup[i].tracker_list,
4089 &ioc->internal_free_list);
4090 }
Kashyap, Desai35f805b2010-11-13 04:34:06 +05304091
4092 /* chain pool */
4093 INIT_LIST_HEAD(&ioc->free_chain_list);
4094 for (i = 0; i < ioc->chain_depth; i++)
4095 list_add_tail(&ioc->chain_lookup[i].tracker_list,
4096 &ioc->free_chain_list);
4097
Eric Moore635374e2009-03-09 01:21:12 -06004098 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
4099
4100 /* initialize Reply Free Queue */
4101 for (i = 0, reply_address = (u32)ioc->reply_dma ;
4102 i < ioc->reply_free_queue_depth ; i++, reply_address +=
4103 ioc->reply_sz)
4104 ioc->reply_free[i] = cpu_to_le32(reply_address);
4105
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05304106 /* initialize reply queues */
nagalakshmi.nandigama@lsi.com2cb6fc82011-12-13 09:29:15 +05304107 if (ioc->is_driver_loading)
4108 _base_assign_reply_queues(ioc);
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05304109
Eric Moore635374e2009-03-09 01:21:12 -06004110 /* initialize Reply Post Free Queue */
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05304111 reply_post_free = (long)ioc->reply_post_free;
4112 reply_post_free_sz = ioc->reply_post_queue_depth *
4113 sizeof(Mpi2DefaultReplyDescriptor_t);
4114 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) {
4115 reply_q->reply_post_host_index = 0;
4116 reply_q->reply_post_free = (Mpi2ReplyDescriptorsUnion_t *)
4117 reply_post_free;
4118 for (i = 0; i < ioc->reply_post_queue_depth; i++)
4119 reply_q->reply_post_free[i].Words =
4120 cpu_to_le64(ULLONG_MAX);
4121 if (!_base_is_controller_msix_enabled(ioc))
4122 goto skip_init_reply_post_free_queue;
4123 reply_post_free += reply_post_free_sz;
4124 }
4125 skip_init_reply_post_free_queue:
Eric Moore635374e2009-03-09 01:21:12 -06004126
Kashyap, Desai7b936b02009-09-25 11:44:41 +05304127 r = _base_send_ioc_init(ioc, sleep_flag);
Eric Moore635374e2009-03-09 01:21:12 -06004128 if (r)
4129 return r;
4130
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05304131 /* initialize reply free host index */
Eric Moore635374e2009-03-09 01:21:12 -06004132 ioc->reply_free_host_index = ioc->reply_free_queue_depth - 1;
Eric Moore635374e2009-03-09 01:21:12 -06004133 writel(ioc->reply_free_host_index, &ioc->chip->ReplyFreeHostIndex);
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05304134
4135 /* initialize reply post host index */
4136 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) {
4137 writel(reply_q->msix_index << MPI2_RPHI_MSIX_INDEX_SHIFT,
4138 &ioc->chip->ReplyPostHostIndex);
4139 if (!_base_is_controller_msix_enabled(ioc))
4140 goto skip_init_reply_post_host_index;
4141 }
4142
4143 skip_init_reply_post_host_index:
Eric Moore635374e2009-03-09 01:21:12 -06004144
4145 _base_unmask_interrupts(ioc);
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05304146
Kashyap, Desai7b936b02009-09-25 11:44:41 +05304147 r = _base_event_notification(ioc, sleep_flag);
Eric Moore635374e2009-03-09 01:21:12 -06004148 if (r)
4149 return r;
4150
4151 if (sleep_flag == CAN_SLEEP)
4152 _base_static_config_pages(ioc);
4153
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05304154
4155 if (ioc->is_driver_loading) {
nagalakshmi.nandigama@lsi.com2cb6fc82011-12-13 09:29:15 +05304156 if (ioc->is_warpdrive && ioc->manu_pg10.OEMIdentifier
4157 == 0x80) {
Kashyap, Desai0bdccdb2011-04-07 12:32:49 +05304158 hide_flag = (u8) (ioc->manu_pg10.OEMSpecificFlags0 &
4159 MFG_PAGE10_HIDE_SSDS_MASK);
4160 if (hide_flag != MFG_PAGE10_HIDE_SSDS_MASK)
4161 ioc->mfg_pg10_hide_flag = hide_flag;
4162 }
nagalakshmi.nandigama@lsi.com2cb6fc82011-12-13 09:29:15 +05304163 ioc->wait_for_discovery_to_complete =
4164 _base_determine_wait_on_discovery(ioc);
4165 return r; /* scan_start and scan_finished support */
Kashyap, Desai0bdccdb2011-04-07 12:32:49 +05304166 }
Kashyap, Desai7b936b02009-09-25 11:44:41 +05304167 r = _base_send_port_enable(ioc, sleep_flag);
Eric Moore635374e2009-03-09 01:21:12 -06004168 if (r)
4169 return r;
4170
4171 return r;
4172}
4173
4174/**
4175 * mpt2sas_base_free_resources - free resources controller resources (io/irq/memap)
4176 * @ioc: per adapter object
4177 *
4178 * Return nothing.
4179 */
4180void
4181mpt2sas_base_free_resources(struct MPT2SAS_ADAPTER *ioc)
4182{
4183 struct pci_dev *pdev = ioc->pdev;
4184
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304185 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06004186 __func__));
4187
4188 _base_mask_interrupts(ioc);
Kashyap, Desai6558bbb2010-03-17 16:23:36 +05304189 ioc->shost_recovery = 1;
Eric Moore635374e2009-03-09 01:21:12 -06004190 _base_make_ioc_ready(ioc, CAN_SLEEP, SOFT_RESET);
Kashyap, Desai6558bbb2010-03-17 16:23:36 +05304191 ioc->shost_recovery = 0;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05304192 _base_free_irq(ioc);
Eric Moore635374e2009-03-09 01:21:12 -06004193 _base_disable_msix(ioc);
4194 if (ioc->chip_phys)
4195 iounmap(ioc->chip);
Eric Moore635374e2009-03-09 01:21:12 -06004196 ioc->chip_phys = 0;
4197 pci_release_selected_regions(ioc->pdev, ioc->bars);
Kashyap, Desaief7c80c2010-04-05 14:20:07 +05304198 pci_disable_pcie_error_reporting(pdev);
Eric Moore635374e2009-03-09 01:21:12 -06004199 pci_disable_device(pdev);
Eric Moore635374e2009-03-09 01:21:12 -06004200 return;
4201}
4202
4203/**
4204 * mpt2sas_base_attach - attach controller instance
4205 * @ioc: per adapter object
4206 *
4207 * Returns 0 for success, non-zero for failure.
4208 */
4209int
4210mpt2sas_base_attach(struct MPT2SAS_ADAPTER *ioc)
4211{
4212 int r, i;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05304213 int cpu_id, last_cpu_id = 0;
Eric Moore635374e2009-03-09 01:21:12 -06004214
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304215 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06004216 __func__));
4217
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05304218 /* setup cpu_msix_table */
4219 ioc->cpu_count = num_online_cpus();
4220 for_each_online_cpu(cpu_id)
4221 last_cpu_id = cpu_id;
4222 ioc->cpu_msix_table_sz = last_cpu_id + 1;
4223 ioc->cpu_msix_table = kzalloc(ioc->cpu_msix_table_sz, GFP_KERNEL);
4224 ioc->reply_queue_count = 1;
4225 if (!ioc->cpu_msix_table) {
4226 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "allocation for "
4227 "cpu_msix_table failed!!!\n", ioc->name));
4228 r = -ENOMEM;
4229 goto out_free_resources;
4230 }
4231
4232 if (ioc->is_warpdrive) {
4233 ioc->reply_post_host_index = kcalloc(ioc->cpu_msix_table_sz,
4234 sizeof(resource_size_t *), GFP_KERNEL);
4235 if (!ioc->reply_post_host_index) {
4236 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "allocation "
4237 "for cpu_msix_table failed!!!\n", ioc->name));
4238 r = -ENOMEM;
4239 goto out_free_resources;
4240 }
4241 }
4242
Eric Moore635374e2009-03-09 01:21:12 -06004243 r = mpt2sas_base_map_resources(ioc);
4244 if (r)
Roland Dreierc24a1712011-11-30 17:14:22 -08004245 goto out_free_resources;
Eric Moore635374e2009-03-09 01:21:12 -06004246
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05304247 if (ioc->is_warpdrive) {
4248 ioc->reply_post_host_index[0] =
4249 (resource_size_t *)&ioc->chip->ReplyPostHostIndex;
4250
4251 for (i = 1; i < ioc->cpu_msix_table_sz; i++)
4252 ioc->reply_post_host_index[i] = (resource_size_t *)
4253 ((u8 *)&ioc->chip->Doorbell + (0x4000 + ((i - 1)
4254 * 4)));
4255 }
4256
Kashyap, Desaifcfe6392009-08-07 19:38:48 +05304257 pci_set_drvdata(ioc->pdev, ioc->shost);
Kashyap, Desai96b681c2009-09-23 17:32:06 +05304258 r = _base_get_ioc_facts(ioc, CAN_SLEEP);
Eric Moore635374e2009-03-09 01:21:12 -06004259 if (r)
4260 goto out_free_resources;
4261
Kashyap, Desai96b681c2009-09-23 17:32:06 +05304262 r = _base_make_ioc_ready(ioc, CAN_SLEEP, SOFT_RESET);
Eric Moore635374e2009-03-09 01:21:12 -06004263 if (r)
4264 goto out_free_resources;
4265
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05304266 ioc->pfacts = kcalloc(ioc->facts.NumberOfPorts,
4267 sizeof(Mpi2PortFactsReply_t), GFP_KERNEL);
Kashyap, Desaif6aee7b2010-03-17 16:26:48 +05304268 if (!ioc->pfacts) {
4269 r = -ENOMEM;
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05304270 goto out_free_resources;
Kashyap, Desaif6aee7b2010-03-17 16:26:48 +05304271 }
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05304272
4273 for (i = 0 ; i < ioc->facts.NumberOfPorts; i++) {
4274 r = _base_get_port_facts(ioc, i, CAN_SLEEP);
4275 if (r)
4276 goto out_free_resources;
4277 }
4278
Eric Moore635374e2009-03-09 01:21:12 -06004279 r = _base_allocate_memory_pools(ioc, CAN_SLEEP);
4280 if (r)
4281 goto out_free_resources;
4282
4283 init_waitqueue_head(&ioc->reset_wq);
4284
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05304285 /* allocate memory pd handle bitmask list */
4286 ioc->pd_handles_sz = (ioc->facts.MaxDevHandle / 8);
4287 if (ioc->facts.MaxDevHandle % 8)
4288 ioc->pd_handles_sz++;
4289 ioc->pd_handles = kzalloc(ioc->pd_handles_sz,
4290 GFP_KERNEL);
Kashyap, Desai3e2e8332010-06-17 13:47:29 +05304291 if (!ioc->pd_handles) {
4292 r = -ENOMEM;
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05304293 goto out_free_resources;
Kashyap, Desai3e2e8332010-06-17 13:47:29 +05304294 }
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05304295
Kashyap, Desaie75b9b62009-12-16 18:52:39 +05304296 ioc->fwfault_debug = mpt2sas_fwfault_debug;
4297
Eric Moore635374e2009-03-09 01:21:12 -06004298 /* base internal command bits */
4299 mutex_init(&ioc->base_cmds.mutex);
Eric Moore635374e2009-03-09 01:21:12 -06004300 ioc->base_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
4301 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
4302
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05304303 /* port_enable command bits */
4304 ioc->port_enable_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
4305 ioc->port_enable_cmds.status = MPT2_CMD_NOT_USED;
4306
Eric Moore635374e2009-03-09 01:21:12 -06004307 /* transport internal command bits */
4308 ioc->transport_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
4309 ioc->transport_cmds.status = MPT2_CMD_NOT_USED;
4310 mutex_init(&ioc->transport_cmds.mutex);
Eric Moore635374e2009-03-09 01:21:12 -06004311
Kashyap, Desaid685c262009-11-17 13:16:37 +05304312 /* scsih internal command bits */
4313 ioc->scsih_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
4314 ioc->scsih_cmds.status = MPT2_CMD_NOT_USED;
4315 mutex_init(&ioc->scsih_cmds.mutex);
4316
Eric Moore635374e2009-03-09 01:21:12 -06004317 /* task management internal command bits */
4318 ioc->tm_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
4319 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
4320 mutex_init(&ioc->tm_cmds.mutex);
Eric Moore635374e2009-03-09 01:21:12 -06004321
4322 /* config page internal command bits */
4323 ioc->config_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
4324 ioc->config_cmds.status = MPT2_CMD_NOT_USED;
4325 mutex_init(&ioc->config_cmds.mutex);
Eric Moore635374e2009-03-09 01:21:12 -06004326
4327 /* ctl module internal command bits */
4328 ioc->ctl_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
Kashyap, Desai769578f2010-06-17 13:49:28 +05304329 ioc->ctl_cmds.sense = kzalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL);
Eric Moore635374e2009-03-09 01:21:12 -06004330 ioc->ctl_cmds.status = MPT2_CMD_NOT_USED;
4331 mutex_init(&ioc->ctl_cmds.mutex);
Eric Moore635374e2009-03-09 01:21:12 -06004332
Kashyap, Desaif6aee7b2010-03-17 16:26:48 +05304333 if (!ioc->base_cmds.reply || !ioc->transport_cmds.reply ||
4334 !ioc->scsih_cmds.reply || !ioc->tm_cmds.reply ||
Kashyap, Desai769578f2010-06-17 13:49:28 +05304335 !ioc->config_cmds.reply || !ioc->ctl_cmds.reply ||
4336 !ioc->ctl_cmds.sense) {
Kashyap, Desaif6aee7b2010-03-17 16:26:48 +05304337 r = -ENOMEM;
4338 goto out_free_resources;
4339 }
4340
Kashyap, Desai3e2e8332010-06-17 13:47:29 +05304341 if (!ioc->base_cmds.reply || !ioc->transport_cmds.reply ||
4342 !ioc->scsih_cmds.reply || !ioc->tm_cmds.reply ||
4343 !ioc->config_cmds.reply || !ioc->ctl_cmds.reply) {
4344 r = -ENOMEM;
4345 goto out_free_resources;
4346 }
4347
Eric Moore635374e2009-03-09 01:21:12 -06004348 for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++)
4349 ioc->event_masks[i] = -1;
4350
4351 /* here we enable the events we care about */
4352 _base_unmask_events(ioc, MPI2_EVENT_SAS_DISCOVERY);
4353 _base_unmask_events(ioc, MPI2_EVENT_SAS_BROADCAST_PRIMITIVE);
4354 _base_unmask_events(ioc, MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST);
4355 _base_unmask_events(ioc, MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
4356 _base_unmask_events(ioc, MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE);
4357 _base_unmask_events(ioc, MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST);
4358 _base_unmask_events(ioc, MPI2_EVENT_IR_VOLUME);
4359 _base_unmask_events(ioc, MPI2_EVENT_IR_PHYSICAL_DISK);
4360 _base_unmask_events(ioc, MPI2_EVENT_IR_OPERATION_STATUS);
Eric Moore635374e2009-03-09 01:21:12 -06004361 _base_unmask_events(ioc, MPI2_EVENT_LOG_ENTRY_ADDED);
Kashyap, Desai7b936b02009-09-25 11:44:41 +05304362 r = _base_make_ioc_operational(ioc, CAN_SLEEP);
Eric Moore635374e2009-03-09 01:21:12 -06004363 if (r)
4364 goto out_free_resources;
4365
Kashyap, Desai6cb8ef52010-11-13 04:32:18 +05304366 if (missing_delay[0] != -1 && missing_delay[1] != -1)
4367 _base_update_missing_delay(ioc, missing_delay[0],
4368 missing_delay[1]);
4369
Eric Moore635374e2009-03-09 01:21:12 -06004370 return 0;
4371
4372 out_free_resources:
4373
4374 ioc->remove_host = 1;
4375 mpt2sas_base_free_resources(ioc);
4376 _base_release_memory_pools(ioc);
Kashyap, Desaifcfe6392009-08-07 19:38:48 +05304377 pci_set_drvdata(ioc->pdev, NULL);
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05304378 kfree(ioc->cpu_msix_table);
4379 if (ioc->is_warpdrive)
4380 kfree(ioc->reply_post_host_index);
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05304381 kfree(ioc->pd_handles);
Eric Moore635374e2009-03-09 01:21:12 -06004382 kfree(ioc->tm_cmds.reply);
4383 kfree(ioc->transport_cmds.reply);
Kashyap, Desaie94f6742010-03-17 16:24:52 +05304384 kfree(ioc->scsih_cmds.reply);
Eric Moore635374e2009-03-09 01:21:12 -06004385 kfree(ioc->config_cmds.reply);
4386 kfree(ioc->base_cmds.reply);
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05304387 kfree(ioc->port_enable_cmds.reply);
Eric Moore635374e2009-03-09 01:21:12 -06004388 kfree(ioc->ctl_cmds.reply);
Kashyap, Desai769578f2010-06-17 13:49:28 +05304389 kfree(ioc->ctl_cmds.sense);
Eric Moore635374e2009-03-09 01:21:12 -06004390 kfree(ioc->pfacts);
4391 ioc->ctl_cmds.reply = NULL;
4392 ioc->base_cmds.reply = NULL;
4393 ioc->tm_cmds.reply = NULL;
Kashyap, Desaie94f6742010-03-17 16:24:52 +05304394 ioc->scsih_cmds.reply = NULL;
Eric Moore635374e2009-03-09 01:21:12 -06004395 ioc->transport_cmds.reply = NULL;
4396 ioc->config_cmds.reply = NULL;
4397 ioc->pfacts = NULL;
4398 return r;
4399}
4400
4401
4402/**
4403 * mpt2sas_base_detach - remove controller instance
4404 * @ioc: per adapter object
4405 *
4406 * Return nothing.
4407 */
4408void
4409mpt2sas_base_detach(struct MPT2SAS_ADAPTER *ioc)
4410{
Eric Moore635374e2009-03-09 01:21:12 -06004411
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304412 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06004413 __func__));
4414
Kashyap, Desaie4750c92009-08-07 19:37:59 +05304415 mpt2sas_base_stop_watchdog(ioc);
Eric Moore635374e2009-03-09 01:21:12 -06004416 mpt2sas_base_free_resources(ioc);
4417 _base_release_memory_pools(ioc);
Kashyap, Desaifcfe6392009-08-07 19:38:48 +05304418 pci_set_drvdata(ioc->pdev, NULL);
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05304419 kfree(ioc->cpu_msix_table);
4420 if (ioc->is_warpdrive)
4421 kfree(ioc->reply_post_host_index);
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05304422 kfree(ioc->pd_handles);
Eric Moore635374e2009-03-09 01:21:12 -06004423 kfree(ioc->pfacts);
4424 kfree(ioc->ctl_cmds.reply);
Kashyap, Desai769578f2010-06-17 13:49:28 +05304425 kfree(ioc->ctl_cmds.sense);
Eric Moore635374e2009-03-09 01:21:12 -06004426 kfree(ioc->base_cmds.reply);
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05304427 kfree(ioc->port_enable_cmds.reply);
Eric Moore635374e2009-03-09 01:21:12 -06004428 kfree(ioc->tm_cmds.reply);
4429 kfree(ioc->transport_cmds.reply);
Kashyap, Desaie94f6742010-03-17 16:24:52 +05304430 kfree(ioc->scsih_cmds.reply);
Eric Moore635374e2009-03-09 01:21:12 -06004431 kfree(ioc->config_cmds.reply);
4432}
4433
4434/**
4435 * _base_reset_handler - reset callback handler (for base)
4436 * @ioc: per adapter object
4437 * @reset_phase: phase
4438 *
4439 * The handler for doing any required cleanup or initialization.
4440 *
4441 * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET,
4442 * MPT2_IOC_DONE_RESET
4443 *
4444 * Return nothing.
4445 */
4446static void
4447_base_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
4448{
Kashyap, Desai42244892011-01-04 11:38:39 +05304449 mpt2sas_scsih_reset_handler(ioc, reset_phase);
4450 mpt2sas_ctl_reset_handler(ioc, reset_phase);
Eric Moore635374e2009-03-09 01:21:12 -06004451 switch (reset_phase) {
4452 case MPT2_IOC_PRE_RESET:
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304453 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
Eric Moore635374e2009-03-09 01:21:12 -06004454 "MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
4455 break;
4456 case MPT2_IOC_AFTER_RESET:
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304457 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
Eric Moore635374e2009-03-09 01:21:12 -06004458 "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
4459 if (ioc->transport_cmds.status & MPT2_CMD_PENDING) {
4460 ioc->transport_cmds.status |= MPT2_CMD_RESET;
4461 mpt2sas_base_free_smid(ioc, ioc->transport_cmds.smid);
4462 complete(&ioc->transport_cmds.done);
4463 }
4464 if (ioc->base_cmds.status & MPT2_CMD_PENDING) {
4465 ioc->base_cmds.status |= MPT2_CMD_RESET;
4466 mpt2sas_base_free_smid(ioc, ioc->base_cmds.smid);
4467 complete(&ioc->base_cmds.done);
4468 }
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05304469 if (ioc->port_enable_cmds.status & MPT2_CMD_PENDING) {
4470 ioc->port_enable_failed = 1;
4471 ioc->port_enable_cmds.status |= MPT2_CMD_RESET;
4472 mpt2sas_base_free_smid(ioc, ioc->port_enable_cmds.smid);
4473 if (ioc->is_driver_loading) {
4474 ioc->start_scan_failed =
4475 MPI2_IOCSTATUS_INTERNAL_ERROR;
4476 ioc->start_scan = 0;
4477 ioc->port_enable_cmds.status =
4478 MPT2_CMD_NOT_USED;
4479 } else
4480 complete(&ioc->port_enable_cmds.done);
4481
4482 }
Eric Moore635374e2009-03-09 01:21:12 -06004483 if (ioc->config_cmds.status & MPT2_CMD_PENDING) {
4484 ioc->config_cmds.status |= MPT2_CMD_RESET;
4485 mpt2sas_base_free_smid(ioc, ioc->config_cmds.smid);
Alexey Dobriyan4be929b2010-05-24 14:33:03 -07004486 ioc->config_cmds.smid = USHRT_MAX;
Eric Moore635374e2009-03-09 01:21:12 -06004487 complete(&ioc->config_cmds.done);
4488 }
4489 break;
4490 case MPT2_IOC_DONE_RESET:
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304491 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
Eric Moore635374e2009-03-09 01:21:12 -06004492 "MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
4493 break;
4494 }
Eric Moore635374e2009-03-09 01:21:12 -06004495}
4496
4497/**
4498 * _wait_for_commands_to_complete - reset controller
4499 * @ioc: Pointer to MPT_ADAPTER structure
4500 * @sleep_flag: CAN_SLEEP or NO_SLEEP
4501 *
4502 * This function waiting(3s) for all pending commands to complete
4503 * prior to putting controller in reset.
4504 */
4505static void
4506_wait_for_commands_to_complete(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
4507{
4508 u32 ioc_state;
4509 unsigned long flags;
4510 u16 i;
4511
4512 ioc->pending_io_count = 0;
4513 if (sleep_flag != CAN_SLEEP)
4514 return;
4515
4516 ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
4517 if ((ioc_state & MPI2_IOC_STATE_MASK) != MPI2_IOC_STATE_OPERATIONAL)
4518 return;
4519
4520 /* pending command count */
4521 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05304522 for (i = 0; i < ioc->scsiio_depth; i++)
Eric Moore635374e2009-03-09 01:21:12 -06004523 if (ioc->scsi_lookup[i].cb_idx != 0xFF)
4524 ioc->pending_io_count++;
4525 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
4526
4527 if (!ioc->pending_io_count)
4528 return;
4529
4530 /* wait for pending commands to complete */
Kashyap, Desaid2742132010-06-17 13:28:55 +05304531 wait_event_timeout(ioc->reset_wq, ioc->pending_io_count == 0, 10 * HZ);
Eric Moore635374e2009-03-09 01:21:12 -06004532}
4533
4534/**
4535 * mpt2sas_base_hard_reset_handler - reset controller
4536 * @ioc: Pointer to MPT_ADAPTER structure
4537 * @sleep_flag: CAN_SLEEP or NO_SLEEP
4538 * @type: FORCE_BIG_HAMMER or SOFT_RESET
4539 *
4540 * Returns 0 for success, non-zero for failure.
4541 */
4542int
4543mpt2sas_base_hard_reset_handler(struct MPT2SAS_ADAPTER *ioc, int sleep_flag,
4544 enum reset_type type)
4545{
Kashyap, Desai7b936b02009-09-25 11:44:41 +05304546 int r;
Eric Moore635374e2009-03-09 01:21:12 -06004547 unsigned long flags;
4548
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304549 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06004550 __func__));
4551
Eric Moore3cb54692010-07-08 14:44:34 -06004552 if (ioc->pci_error_recovery) {
4553 printk(MPT2SAS_ERR_FMT "%s: pci error recovery reset\n",
4554 ioc->name, __func__);
4555 r = 0;
Alexey Khoroshilov7fbd7642011-08-26 00:36:23 +04004556 goto out_unlocked;
Eric Moore3cb54692010-07-08 14:44:34 -06004557 }
4558
Kashyap, Desaifa7f3162009-09-23 17:26:58 +05304559 if (mpt2sas_fwfault_debug)
4560 mpt2sas_halt_firmware(ioc);
4561
Kashyap, Desaid2742132010-06-17 13:28:55 +05304562 /* TODO - What we really should be doing is pulling
4563 * out all the code associated with NO_SLEEP; its never used.
4564 * That is legacy code from mpt fusion driver, ported over.
4565 * I will leave this BUG_ON here for now till its been resolved.
4566 */
4567 BUG_ON(sleep_flag == NO_SLEEP);
4568
4569 /* wait for an active reset in progress to complete */
4570 if (!mutex_trylock(&ioc->reset_in_progress_mutex)) {
4571 do {
4572 ssleep(1);
4573 } while (ioc->shost_recovery == 1);
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304574 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit\n", ioc->name,
Kashyap, Desaid2742132010-06-17 13:28:55 +05304575 __func__));
4576 return ioc->ioc_reset_in_progress_status;
Eric Moore635374e2009-03-09 01:21:12 -06004577 }
Kashyap, Desaid2742132010-06-17 13:28:55 +05304578
4579 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
Eric Moore635374e2009-03-09 01:21:12 -06004580 ioc->shost_recovery = 1;
Eric Moore635374e2009-03-09 01:21:12 -06004581 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
4582
4583 _base_reset_handler(ioc, MPT2_IOC_PRE_RESET);
4584 _wait_for_commands_to_complete(ioc, sleep_flag);
4585 _base_mask_interrupts(ioc);
4586 r = _base_make_ioc_ready(ioc, sleep_flag, type);
4587 if (r)
4588 goto out;
4589 _base_reset_handler(ioc, MPT2_IOC_AFTER_RESET);
Kashyap, Desai42244892011-01-04 11:38:39 +05304590
4591 /* If this hard reset is called while port enable is active, then
4592 * there is no reason to call make_ioc_operational
4593 */
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05304594 if (ioc->is_driver_loading && ioc->port_enable_failed) {
4595 ioc->remove_host = 1;
Kashyap, Desai42244892011-01-04 11:38:39 +05304596 r = -EFAULT;
4597 goto out;
4598 }
Kashyap, Desai7b936b02009-09-25 11:44:41 +05304599 r = _base_make_ioc_operational(ioc, sleep_flag);
Eric Moore635374e2009-03-09 01:21:12 -06004600 if (!r)
4601 _base_reset_handler(ioc, MPT2_IOC_DONE_RESET);
4602 out:
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304603 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: %s\n",
Eric Moore635374e2009-03-09 01:21:12 -06004604 ioc->name, __func__, ((r == 0) ? "SUCCESS" : "FAILED")));
4605
4606 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
Kashyap, Desaid2742132010-06-17 13:28:55 +05304607 ioc->ioc_reset_in_progress_status = r;
Kashyap, Desai155dd4c2009-08-20 13:22:00 +05304608 ioc->shost_recovery = 0;
Eric Moore635374e2009-03-09 01:21:12 -06004609 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
Kashyap, Desaid2742132010-06-17 13:28:55 +05304610 mutex_unlock(&ioc->reset_in_progress_mutex);
Kashyap, Desaicd4e12e2009-08-20 13:20:54 +05304611
Alexey Khoroshilov7fbd7642011-08-26 00:36:23 +04004612 out_unlocked:
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304613 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit\n", ioc->name,
Kashyap, Desaid2742132010-06-17 13:28:55 +05304614 __func__));
Eric Moore635374e2009-03-09 01:21:12 -06004615 return r;
4616}