blob: 65c377dc027955684baa355bdee21c91d8524e9d [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
95
Kashyap, Desai32e0eb52009-09-23 17:28:09 +053096/* diag_buffer_enable is bitwise
Kashyap, Desai1b01fe32009-09-23 17:28:59 +053097 * bit 0 set = TRACE
98 * bit 1 set = SNAPSHOT
99 * bit 2 set = EXTENDED
Kashyap, Desai32e0eb52009-09-23 17:28:09 +0530100 *
101 * Either bit can be set, or both
102 */
103static int diag_buffer_enable;
104module_param(diag_buffer_enable, int, 0);
Kashyap, Desai1b01fe32009-09-23 17:28:59 +0530105MODULE_PARM_DESC(diag_buffer_enable, " post diag buffers "
106 "(TRACE=1/SNAPSHOT=2/EXTENDED=4/default=0)");
Kashyap, Desai32e0eb52009-09-23 17:28:09 +0530107
Kashyap, Desaifa7f3162009-09-23 17:26:58 +0530108/**
109 * _scsih_set_fwfault_debug - global setting of ioc->fwfault_debug.
110 *
111 */
112static int
113_scsih_set_fwfault_debug(const char *val, struct kernel_param *kp)
114{
115 int ret = param_set_int(val, kp);
116 struct MPT2SAS_ADAPTER *ioc;
117
118 if (ret)
119 return ret;
120
Kashyap, Desaie75b9b62009-12-16 18:52:39 +0530121 printk(KERN_INFO "setting fwfault_debug(%d)\n", mpt2sas_fwfault_debug);
Kashyap, Desaifa7f3162009-09-23 17:26:58 +0530122 list_for_each_entry(ioc, &mpt2sas_ioc_list, list)
123 ioc->fwfault_debug = mpt2sas_fwfault_debug;
124 return 0;
125}
nagalakshmi.nandigama@lsi.com845a0e42011-12-01 07:42:04 +0530126
Kashyap, Desaifa7f3162009-09-23 17:26:58 +0530127module_param_call(mpt2sas_fwfault_debug, _scsih_set_fwfault_debug,
128 param_get_int, &mpt2sas_fwfault_debug, 0644);
129
Eric Moore635374e2009-03-09 01:21:12 -0600130/**
nagalakshmi.nandigama@lsi.com845a0e42011-12-01 07:42:04 +0530131 * mpt2sas_remove_dead_ioc_func - kthread context to remove dead ioc
132 * @arg: input argument, used to derive ioc
133 *
134 * Return 0 if controller is removed from pci subsystem.
135 * Return -1 for other case.
136 */
137static int mpt2sas_remove_dead_ioc_func(void *arg)
138{
139 struct MPT2SAS_ADAPTER *ioc = (struct MPT2SAS_ADAPTER *)arg;
140 struct pci_dev *pdev;
141
142 if ((ioc == NULL))
143 return -1;
144
145 pdev = ioc->pdev;
146 if ((pdev == NULL))
147 return -1;
148 pci_remove_bus_device(pdev);
149 return 0;
150}
151
152
153/**
Eric Moore635374e2009-03-09 01:21:12 -0600154 * _base_fault_reset_work - workq handling ioc fault conditions
155 * @work: input argument, used to derive ioc
156 * Context: sleep.
157 *
158 * Return nothing.
159 */
160static void
161_base_fault_reset_work(struct work_struct *work)
162{
163 struct MPT2SAS_ADAPTER *ioc =
164 container_of(work, struct MPT2SAS_ADAPTER, fault_reset_work.work);
165 unsigned long flags;
166 u32 doorbell;
167 int rc;
nagalakshmi.nandigama@lsi.com845a0e42011-12-01 07:42:04 +0530168 struct task_struct *p;
Eric Moore635374e2009-03-09 01:21:12 -0600169
170 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
Kashyap, Desai155dd4c2009-08-20 13:22:00 +0530171 if (ioc->shost_recovery)
Eric Moore635374e2009-03-09 01:21:12 -0600172 goto rearm_timer;
173 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
174
175 doorbell = mpt2sas_base_get_iocstate(ioc, 0);
nagalakshmi.nandigama@lsi.com845a0e42011-12-01 07:42:04 +0530176 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_MASK) {
177 printk(MPT2SAS_INFO_FMT "%s : SAS host is non-operational !!!!\n",
178 ioc->name, __func__);
179
180 /*
181 * Call _scsih_flush_pending_cmds callback so that we flush all
182 * pending commands back to OS. This call is required to aovid
183 * deadlock at block layer. Dead IOC will fail to do diag reset,
184 * and this call is safe since dead ioc will never return any
185 * command back from HW.
186 */
187 ioc->schedule_dead_ioc_flush_running_cmds(ioc);
188 /*
189 * Set remove_host flag early since kernel thread will
190 * take some time to execute.
191 */
192 ioc->remove_host = 1;
193 /*Remove the Dead Host */
194 p = kthread_run(mpt2sas_remove_dead_ioc_func, ioc,
195 "mpt2sas_dead_ioc_%d", ioc->id);
196 if (IS_ERR(p)) {
197 printk(MPT2SAS_ERR_FMT
198 "%s: Running mpt2sas_dead_ioc thread failed !!!!\n",
199 ioc->name, __func__);
200 } else {
201 printk(MPT2SAS_ERR_FMT
202 "%s: Running mpt2sas_dead_ioc thread success !!!!\n",
203 ioc->name, __func__);
204 }
205
206 return; /* don't rearm timer */
207 }
208
Eric Moore635374e2009-03-09 01:21:12 -0600209 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
210 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
211 FORCE_BIG_HAMMER);
212 printk(MPT2SAS_WARN_FMT "%s: hard reset: %s\n", ioc->name,
213 __func__, (rc == 0) ? "success" : "failed");
214 doorbell = mpt2sas_base_get_iocstate(ioc, 0);
215 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT)
216 mpt2sas_base_fault_info(ioc, doorbell &
217 MPI2_DOORBELL_DATA_MASK);
218 }
219
220 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
221 rearm_timer:
222 if (ioc->fault_reset_work_q)
223 queue_delayed_work(ioc->fault_reset_work_q,
224 &ioc->fault_reset_work,
225 msecs_to_jiffies(FAULT_POLLING_INTERVAL));
226 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
227}
228
Kashyap, Desaie4750c92009-08-07 19:37:59 +0530229/**
230 * mpt2sas_base_start_watchdog - start the fault_reset_work_q
Kashyap, Desaicef7a122009-09-23 17:27:41 +0530231 * @ioc: per adapter object
Kashyap, Desaie4750c92009-08-07 19:37:59 +0530232 * Context: sleep.
233 *
234 * Return nothing.
235 */
236void
237mpt2sas_base_start_watchdog(struct MPT2SAS_ADAPTER *ioc)
238{
239 unsigned long flags;
240
241 if (ioc->fault_reset_work_q)
242 return;
243
244 /* initialize fault polling */
245 INIT_DELAYED_WORK(&ioc->fault_reset_work, _base_fault_reset_work);
246 snprintf(ioc->fault_reset_work_q_name,
247 sizeof(ioc->fault_reset_work_q_name), "poll_%d_status", ioc->id);
248 ioc->fault_reset_work_q =
249 create_singlethread_workqueue(ioc->fault_reset_work_q_name);
250 if (!ioc->fault_reset_work_q) {
251 printk(MPT2SAS_ERR_FMT "%s: failed (line=%d)\n",
252 ioc->name, __func__, __LINE__);
253 return;
254 }
255 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
256 if (ioc->fault_reset_work_q)
257 queue_delayed_work(ioc->fault_reset_work_q,
258 &ioc->fault_reset_work,
259 msecs_to_jiffies(FAULT_POLLING_INTERVAL));
260 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
261}
262
263/**
264 * mpt2sas_base_stop_watchdog - stop the fault_reset_work_q
Kashyap, Desaicef7a122009-09-23 17:27:41 +0530265 * @ioc: per adapter object
Kashyap, Desaie4750c92009-08-07 19:37:59 +0530266 * Context: sleep.
267 *
268 * Return nothing.
269 */
270void
271mpt2sas_base_stop_watchdog(struct MPT2SAS_ADAPTER *ioc)
272{
273 unsigned long flags;
274 struct workqueue_struct *wq;
275
276 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
277 wq = ioc->fault_reset_work_q;
278 ioc->fault_reset_work_q = NULL;
279 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
280 if (wq) {
281 if (!cancel_delayed_work(&ioc->fault_reset_work))
282 flush_workqueue(wq);
283 destroy_workqueue(wq);
284 }
285}
286
Kashyap, Desaifa7f3162009-09-23 17:26:58 +0530287/**
288 * mpt2sas_base_fault_info - verbose translation of firmware FAULT code
289 * @ioc: per adapter object
290 * @fault_code: fault code
291 *
292 * Return nothing.
293 */
294void
295mpt2sas_base_fault_info(struct MPT2SAS_ADAPTER *ioc , u16 fault_code)
296{
297 printk(MPT2SAS_ERR_FMT "fault_state(0x%04x)!\n",
298 ioc->name, fault_code);
299}
300
301/**
302 * mpt2sas_halt_firmware - halt's mpt controller firmware
303 * @ioc: per adapter object
304 *
305 * For debugging timeout related issues. Writing 0xCOFFEE00
306 * to the doorbell register will halt controller firmware. With
307 * the purpose to stop both driver and firmware, the enduser can
308 * obtain a ring buffer from controller UART.
309 */
310void
311mpt2sas_halt_firmware(struct MPT2SAS_ADAPTER *ioc)
312{
313 u32 doorbell;
314
315 if (!ioc->fwfault_debug)
316 return;
317
318 dump_stack();
319
320 doorbell = readl(&ioc->chip->Doorbell);
321 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT)
322 mpt2sas_base_fault_info(ioc , doorbell);
323 else {
324 writel(0xC0FFEE00, &ioc->chip->Doorbell);
325 printk(MPT2SAS_ERR_FMT "Firmware is halted due to command "
326 "timeout\n", ioc->name);
327 }
328
329 panic("panic in %s\n", __func__);
330}
331
Eric Moore635374e2009-03-09 01:21:12 -0600332#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
333/**
334 * _base_sas_ioc_info - verbose translation of the ioc status
Kashyap, Desaicef7a122009-09-23 17:27:41 +0530335 * @ioc: per adapter object
Eric Moore635374e2009-03-09 01:21:12 -0600336 * @mpi_reply: reply mf payload returned from firmware
337 * @request_hdr: request mf
338 *
339 * Return nothing.
340 */
341static void
342_base_sas_ioc_info(struct MPT2SAS_ADAPTER *ioc, MPI2DefaultReply_t *mpi_reply,
343 MPI2RequestHeader_t *request_hdr)
344{
345 u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
346 MPI2_IOCSTATUS_MASK;
347 char *desc = NULL;
348 u16 frame_sz;
349 char *func_str = NULL;
350
351 /* SCSI_IO, RAID_PASS are handled from _scsih_scsi_ioc_info */
352 if (request_hdr->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
353 request_hdr->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
354 request_hdr->Function == MPI2_FUNCTION_EVENT_NOTIFICATION)
355 return;
356
Kashyap, Desaie94f6742010-03-17 16:24:52 +0530357 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
358 return;
359
Eric Moore635374e2009-03-09 01:21:12 -0600360 switch (ioc_status) {
361
362/****************************************************************************
363* Common IOCStatus values for all replies
364****************************************************************************/
365
366 case MPI2_IOCSTATUS_INVALID_FUNCTION:
367 desc = "invalid function";
368 break;
369 case MPI2_IOCSTATUS_BUSY:
370 desc = "busy";
371 break;
372 case MPI2_IOCSTATUS_INVALID_SGL:
373 desc = "invalid sgl";
374 break;
375 case MPI2_IOCSTATUS_INTERNAL_ERROR:
376 desc = "internal error";
377 break;
378 case MPI2_IOCSTATUS_INVALID_VPID:
379 desc = "invalid vpid";
380 break;
381 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
382 desc = "insufficient resources";
383 break;
384 case MPI2_IOCSTATUS_INVALID_FIELD:
385 desc = "invalid field";
386 break;
387 case MPI2_IOCSTATUS_INVALID_STATE:
388 desc = "invalid state";
389 break;
390 case MPI2_IOCSTATUS_OP_STATE_NOT_SUPPORTED:
391 desc = "op state not supported";
392 break;
393
394/****************************************************************************
395* Config IOCStatus values
396****************************************************************************/
397
398 case MPI2_IOCSTATUS_CONFIG_INVALID_ACTION:
399 desc = "config invalid action";
400 break;
401 case MPI2_IOCSTATUS_CONFIG_INVALID_TYPE:
402 desc = "config invalid type";
403 break;
404 case MPI2_IOCSTATUS_CONFIG_INVALID_PAGE:
405 desc = "config invalid page";
406 break;
407 case MPI2_IOCSTATUS_CONFIG_INVALID_DATA:
408 desc = "config invalid data";
409 break;
410 case MPI2_IOCSTATUS_CONFIG_NO_DEFAULTS:
411 desc = "config no defaults";
412 break;
413 case MPI2_IOCSTATUS_CONFIG_CANT_COMMIT:
414 desc = "config cant commit";
415 break;
416
417/****************************************************************************
418* SCSI IO Reply
419****************************************************************************/
420
421 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
422 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
423 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
424 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
425 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
426 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
427 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
428 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
429 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
430 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
431 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
432 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
433 break;
434
435/****************************************************************************
436* For use by SCSI Initiator and SCSI Target end-to-end data protection
437****************************************************************************/
438
439 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
440 desc = "eedp guard error";
441 break;
442 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
443 desc = "eedp ref tag error";
444 break;
445 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
446 desc = "eedp app tag error";
447 break;
448
449/****************************************************************************
450* SCSI Target values
451****************************************************************************/
452
453 case MPI2_IOCSTATUS_TARGET_INVALID_IO_INDEX:
454 desc = "target invalid io index";
455 break;
456 case MPI2_IOCSTATUS_TARGET_ABORTED:
457 desc = "target aborted";
458 break;
459 case MPI2_IOCSTATUS_TARGET_NO_CONN_RETRYABLE:
460 desc = "target no conn retryable";
461 break;
462 case MPI2_IOCSTATUS_TARGET_NO_CONNECTION:
463 desc = "target no connection";
464 break;
465 case MPI2_IOCSTATUS_TARGET_XFER_COUNT_MISMATCH:
466 desc = "target xfer count mismatch";
467 break;
468 case MPI2_IOCSTATUS_TARGET_DATA_OFFSET_ERROR:
469 desc = "target data offset error";
470 break;
471 case MPI2_IOCSTATUS_TARGET_TOO_MUCH_WRITE_DATA:
472 desc = "target too much write data";
473 break;
474 case MPI2_IOCSTATUS_TARGET_IU_TOO_SHORT:
475 desc = "target iu too short";
476 break;
477 case MPI2_IOCSTATUS_TARGET_ACK_NAK_TIMEOUT:
478 desc = "target ack nak timeout";
479 break;
480 case MPI2_IOCSTATUS_TARGET_NAK_RECEIVED:
481 desc = "target nak received";
482 break;
483
484/****************************************************************************
485* Serial Attached SCSI values
486****************************************************************************/
487
488 case MPI2_IOCSTATUS_SAS_SMP_REQUEST_FAILED:
489 desc = "smp request failed";
490 break;
491 case MPI2_IOCSTATUS_SAS_SMP_DATA_OVERRUN:
492 desc = "smp data overrun";
493 break;
494
495/****************************************************************************
496* Diagnostic Buffer Post / Diagnostic Release values
497****************************************************************************/
498
499 case MPI2_IOCSTATUS_DIAGNOSTIC_RELEASED:
500 desc = "diagnostic released";
501 break;
502 default:
503 break;
504 }
505
506 if (!desc)
507 return;
508
509 switch (request_hdr->Function) {
510 case MPI2_FUNCTION_CONFIG:
511 frame_sz = sizeof(Mpi2ConfigRequest_t) + ioc->sge_size;
512 func_str = "config_page";
513 break;
514 case MPI2_FUNCTION_SCSI_TASK_MGMT:
515 frame_sz = sizeof(Mpi2SCSITaskManagementRequest_t);
516 func_str = "task_mgmt";
517 break;
518 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
519 frame_sz = sizeof(Mpi2SasIoUnitControlRequest_t);
520 func_str = "sas_iounit_ctl";
521 break;
522 case MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR:
523 frame_sz = sizeof(Mpi2SepRequest_t);
524 func_str = "enclosure";
525 break;
526 case MPI2_FUNCTION_IOC_INIT:
527 frame_sz = sizeof(Mpi2IOCInitRequest_t);
528 func_str = "ioc_init";
529 break;
530 case MPI2_FUNCTION_PORT_ENABLE:
531 frame_sz = sizeof(Mpi2PortEnableRequest_t);
532 func_str = "port_enable";
533 break;
534 case MPI2_FUNCTION_SMP_PASSTHROUGH:
535 frame_sz = sizeof(Mpi2SmpPassthroughRequest_t) + ioc->sge_size;
536 func_str = "smp_passthru";
537 break;
538 default:
539 frame_sz = 32;
540 func_str = "unknown";
541 break;
542 }
543
544 printk(MPT2SAS_WARN_FMT "ioc_status: %s(0x%04x), request(0x%p),"
545 " (%s)\n", ioc->name, desc, ioc_status, request_hdr, func_str);
546
547 _debug_dump_mf(request_hdr, frame_sz/4);
548}
549
550/**
551 * _base_display_event_data - verbose translation of firmware asyn events
Kashyap, Desaicef7a122009-09-23 17:27:41 +0530552 * @ioc: per adapter object
Eric Moore635374e2009-03-09 01:21:12 -0600553 * @mpi_reply: reply mf payload returned from firmware
554 *
555 * Return nothing.
556 */
557static void
558_base_display_event_data(struct MPT2SAS_ADAPTER *ioc,
559 Mpi2EventNotificationReply_t *mpi_reply)
560{
561 char *desc = NULL;
562 u16 event;
563
564 if (!(ioc->logging_level & MPT_DEBUG_EVENTS))
565 return;
566
567 event = le16_to_cpu(mpi_reply->Event);
568
569 switch (event) {
570 case MPI2_EVENT_LOG_DATA:
571 desc = "Log Data";
572 break;
573 case MPI2_EVENT_STATE_CHANGE:
574 desc = "Status Change";
575 break;
576 case MPI2_EVENT_HARD_RESET_RECEIVED:
577 desc = "Hard Reset Received";
578 break;
579 case MPI2_EVENT_EVENT_CHANGE:
580 desc = "Event Change";
581 break;
Eric Moore635374e2009-03-09 01:21:12 -0600582 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
583 desc = "Device Status Change";
584 break;
585 case MPI2_EVENT_IR_OPERATION_STATUS:
Kashyap, Desai0bdccdb2011-04-07 12:32:49 +0530586 if (!ioc->hide_ir_msg)
587 desc = "IR Operation Status";
Eric Moore635374e2009-03-09 01:21:12 -0600588 break;
589 case MPI2_EVENT_SAS_DISCOVERY:
Kashyap, Desaie94f6742010-03-17 16:24:52 +0530590 {
591 Mpi2EventDataSasDiscovery_t *event_data =
592 (Mpi2EventDataSasDiscovery_t *)mpi_reply->EventData;
593 printk(MPT2SAS_INFO_FMT "Discovery: (%s)", ioc->name,
594 (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
595 "start" : "stop");
596 if (event_data->DiscoveryStatus)
597 printk("discovery_status(0x%08x)",
598 le32_to_cpu(event_data->DiscoveryStatus));
Julia Lawall7968f192010-08-05 22:19:36 +0200599 printk("\n");
Kashyap, Desaie94f6742010-03-17 16:24:52 +0530600 return;
601 }
Eric Moore635374e2009-03-09 01:21:12 -0600602 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
603 desc = "SAS Broadcast Primitive";
604 break;
605 case MPI2_EVENT_SAS_INIT_DEVICE_STATUS_CHANGE:
606 desc = "SAS Init Device Status Change";
607 break;
608 case MPI2_EVENT_SAS_INIT_TABLE_OVERFLOW:
609 desc = "SAS Init Table Overflow";
610 break;
611 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
612 desc = "SAS Topology Change List";
613 break;
614 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
615 desc = "SAS Enclosure Device Status Change";
616 break;
617 case MPI2_EVENT_IR_VOLUME:
Kashyap, Desai0bdccdb2011-04-07 12:32:49 +0530618 if (!ioc->hide_ir_msg)
619 desc = "IR Volume";
Eric Moore635374e2009-03-09 01:21:12 -0600620 break;
621 case MPI2_EVENT_IR_PHYSICAL_DISK:
Kashyap, Desai0bdccdb2011-04-07 12:32:49 +0530622 if (!ioc->hide_ir_msg)
623 desc = "IR Physical Disk";
Eric Moore635374e2009-03-09 01:21:12 -0600624 break;
625 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
Kashyap, Desai0bdccdb2011-04-07 12:32:49 +0530626 if (!ioc->hide_ir_msg)
627 desc = "IR Configuration Change List";
Eric Moore635374e2009-03-09 01:21:12 -0600628 break;
629 case MPI2_EVENT_LOG_ENTRY_ADDED:
Kashyap, Desai0bdccdb2011-04-07 12:32:49 +0530630 if (!ioc->hide_ir_msg)
631 desc = "Log Entry Added";
Eric Moore635374e2009-03-09 01:21:12 -0600632 break;
633 }
634
635 if (!desc)
636 return;
637
638 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, desc);
639}
640#endif
641
642/**
643 * _base_sas_log_info - verbose translation of firmware log info
Kashyap, Desaicef7a122009-09-23 17:27:41 +0530644 * @ioc: per adapter object
Eric Moore635374e2009-03-09 01:21:12 -0600645 * @log_info: log info
646 *
647 * Return nothing.
648 */
649static void
650_base_sas_log_info(struct MPT2SAS_ADAPTER *ioc , u32 log_info)
651{
652 union loginfo_type {
653 u32 loginfo;
654 struct {
655 u32 subcode:16;
656 u32 code:8;
657 u32 originator:4;
658 u32 bus_type:4;
659 } dw;
660 };
661 union loginfo_type sas_loginfo;
662 char *originator_str = NULL;
663
664 sas_loginfo.loginfo = log_info;
665 if (sas_loginfo.dw.bus_type != 3 /*SAS*/)
666 return;
667
Kashyap, Desaibe9e8cd72009-08-07 19:36:43 +0530668 /* each nexus loss loginfo */
669 if (log_info == 0x31170000)
670 return;
671
Eric Moore635374e2009-03-09 01:21:12 -0600672 /* eat the loginfos associated with task aborts */
673 if (ioc->ignore_loginfos && (log_info == 30050000 || log_info ==
674 0x31140000 || log_info == 0x31130000))
675 return;
676
677 switch (sas_loginfo.dw.originator) {
678 case 0:
679 originator_str = "IOP";
680 break;
681 case 1:
682 originator_str = "PL";
683 break;
684 case 2:
Kashyap, Desai0bdccdb2011-04-07 12:32:49 +0530685 if (!ioc->hide_ir_msg)
686 originator_str = "IR";
687 else
688 originator_str = "WarpDrive";
Eric Moore635374e2009-03-09 01:21:12 -0600689 break;
690 }
691
692 printk(MPT2SAS_WARN_FMT "log_info(0x%08x): originator(%s), "
693 "code(0x%02x), sub_code(0x%04x)\n", ioc->name, log_info,
694 originator_str, sas_loginfo.dw.code,
695 sas_loginfo.dw.subcode);
696}
697
698/**
Eric Moore635374e2009-03-09 01:21:12 -0600699 * _base_display_reply_info -
Kashyap, Desaicef7a122009-09-23 17:27:41 +0530700 * @ioc: per adapter object
Eric Moore635374e2009-03-09 01:21:12 -0600701 * @smid: system request message index
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530702 * @msix_index: MSIX table index supplied by the OS
Eric Moore635374e2009-03-09 01:21:12 -0600703 * @reply: reply message frame(lower 32bit addr)
704 *
705 * Return nothing.
706 */
707static void
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530708_base_display_reply_info(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
Eric Moore635374e2009-03-09 01:21:12 -0600709 u32 reply)
710{
711 MPI2DefaultReply_t *mpi_reply;
712 u16 ioc_status;
713
714 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
715 ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
716#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
717 if ((ioc_status & MPI2_IOCSTATUS_MASK) &&
718 (ioc->logging_level & MPT_DEBUG_REPLY)) {
719 _base_sas_ioc_info(ioc , mpi_reply,
720 mpt2sas_base_get_msg_frame(ioc, smid));
721 }
722#endif
723 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
724 _base_sas_log_info(ioc, le32_to_cpu(mpi_reply->IOCLogInfo));
725}
726
727/**
728 * mpt2sas_base_done - base internal command completion routine
Kashyap, Desaicef7a122009-09-23 17:27:41 +0530729 * @ioc: per adapter object
Eric Moore635374e2009-03-09 01:21:12 -0600730 * @smid: system request message index
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530731 * @msix_index: MSIX table index supplied by the OS
Eric Moore635374e2009-03-09 01:21:12 -0600732 * @reply: reply message frame(lower 32bit addr)
733 *
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530734 * Return 1 meaning mf should be freed from _base_interrupt
735 * 0 means the mf is freed from this function.
Eric Moore635374e2009-03-09 01:21:12 -0600736 */
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530737u8
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530738mpt2sas_base_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
739 u32 reply)
Eric Moore635374e2009-03-09 01:21:12 -0600740{
741 MPI2DefaultReply_t *mpi_reply;
742
743 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
744 if (mpi_reply && mpi_reply->Function == MPI2_FUNCTION_EVENT_ACK)
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530745 return 1;
Eric Moore635374e2009-03-09 01:21:12 -0600746
747 if (ioc->base_cmds.status == MPT2_CMD_NOT_USED)
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530748 return 1;
Eric Moore635374e2009-03-09 01:21:12 -0600749
750 ioc->base_cmds.status |= MPT2_CMD_COMPLETE;
751 if (mpi_reply) {
752 ioc->base_cmds.status |= MPT2_CMD_REPLY_VALID;
753 memcpy(ioc->base_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
754 }
755 ioc->base_cmds.status &= ~MPT2_CMD_PENDING;
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +0530756
Eric Moore635374e2009-03-09 01:21:12 -0600757 complete(&ioc->base_cmds.done);
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530758 return 1;
Eric Moore635374e2009-03-09 01:21:12 -0600759}
760
761/**
762 * _base_async_event - main callback handler for firmware asyn events
Kashyap, Desaicef7a122009-09-23 17:27:41 +0530763 * @ioc: per adapter object
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530764 * @msix_index: MSIX table index supplied by the OS
Eric Moore635374e2009-03-09 01:21:12 -0600765 * @reply: reply message frame(lower 32bit addr)
766 *
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530767 * Return 1 meaning mf should be freed from _base_interrupt
768 * 0 means the mf is freed from this function.
Eric Moore635374e2009-03-09 01:21:12 -0600769 */
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530770static u8
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530771_base_async_event(struct MPT2SAS_ADAPTER *ioc, u8 msix_index, u32 reply)
Eric Moore635374e2009-03-09 01:21:12 -0600772{
773 Mpi2EventNotificationReply_t *mpi_reply;
774 Mpi2EventAckRequest_t *ack_request;
775 u16 smid;
776
777 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
778 if (!mpi_reply)
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530779 return 1;
Eric Moore635374e2009-03-09 01:21:12 -0600780 if (mpi_reply->Function != MPI2_FUNCTION_EVENT_NOTIFICATION)
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530781 return 1;
Eric Moore635374e2009-03-09 01:21:12 -0600782#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
783 _base_display_event_data(ioc, mpi_reply);
784#endif
785 if (!(mpi_reply->AckRequired & MPI2_EVENT_NOTIFICATION_ACK_REQUIRED))
786 goto out;
787 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx);
788 if (!smid) {
789 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
790 ioc->name, __func__);
791 goto out;
792 }
793
794 ack_request = mpt2sas_base_get_msg_frame(ioc, smid);
795 memset(ack_request, 0, sizeof(Mpi2EventAckRequest_t));
796 ack_request->Function = MPI2_FUNCTION_EVENT_ACK;
797 ack_request->Event = mpi_reply->Event;
798 ack_request->EventContext = mpi_reply->EventContext;
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530799 ack_request->VF_ID = 0; /* TODO */
800 ack_request->VP_ID = 0;
801 mpt2sas_base_put_smid_default(ioc, smid);
Eric Moore635374e2009-03-09 01:21:12 -0600802
803 out:
804
805 /* scsih callback handler */
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530806 mpt2sas_scsih_event_callback(ioc, msix_index, reply);
Eric Moore635374e2009-03-09 01:21:12 -0600807
808 /* ctl callback handler */
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530809 mpt2sas_ctl_event_callback(ioc, msix_index, reply);
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530810
811 return 1;
Eric Moore635374e2009-03-09 01:21:12 -0600812}
813
814/**
Kashyap, Desai595bb0b2009-09-14 11:02:48 +0530815 * _base_get_cb_idx - obtain the callback index
816 * @ioc: per adapter object
817 * @smid: system request message index
818 *
819 * Return callback index.
820 */
821static u8
822_base_get_cb_idx(struct MPT2SAS_ADAPTER *ioc, u16 smid)
823{
824 int i;
Kashyap, Desaid5bd3492011-01-04 11:39:20 +0530825 u8 cb_idx;
Kashyap, Desai595bb0b2009-09-14 11:02:48 +0530826
Kashyap, Desaid5bd3492011-01-04 11:39:20 +0530827 if (smid < ioc->hi_priority_smid) {
Kashyap, Desai595bb0b2009-09-14 11:02:48 +0530828 i = smid - 1;
829 cb_idx = ioc->scsi_lookup[i].cb_idx;
Kashyap, Desaid5bd3492011-01-04 11:39:20 +0530830 } else if (smid < ioc->internal_smid) {
831 i = smid - ioc->hi_priority_smid;
832 cb_idx = ioc->hpr_lookup[i].cb_idx;
833 } else if (smid <= ioc->hba_queue_depth) {
834 i = smid - ioc->internal_smid;
835 cb_idx = ioc->internal_lookup[i].cb_idx;
836 } else
837 cb_idx = 0xFF;
Kashyap, Desai595bb0b2009-09-14 11:02:48 +0530838 return cb_idx;
839}
840
841/**
Eric Moore635374e2009-03-09 01:21:12 -0600842 * _base_mask_interrupts - disable interrupts
Kashyap, Desaicef7a122009-09-23 17:27:41 +0530843 * @ioc: per adapter object
Eric Moore635374e2009-03-09 01:21:12 -0600844 *
845 * Disabling ResetIRQ, Reply and Doorbell Interrupts
846 *
847 * Return nothing.
848 */
849static void
850_base_mask_interrupts(struct MPT2SAS_ADAPTER *ioc)
851{
852 u32 him_register;
853
854 ioc->mask_interrupts = 1;
855 him_register = readl(&ioc->chip->HostInterruptMask);
856 him_register |= MPI2_HIM_DIM + MPI2_HIM_RIM + MPI2_HIM_RESET_IRQ_MASK;
857 writel(him_register, &ioc->chip->HostInterruptMask);
858 readl(&ioc->chip->HostInterruptMask);
859}
860
861/**
862 * _base_unmask_interrupts - enable interrupts
Kashyap, Desaicef7a122009-09-23 17:27:41 +0530863 * @ioc: per adapter object
Eric Moore635374e2009-03-09 01:21:12 -0600864 *
865 * Enabling only Reply Interrupts
866 *
867 * Return nothing.
868 */
869static void
870_base_unmask_interrupts(struct MPT2SAS_ADAPTER *ioc)
871{
872 u32 him_register;
873
Eric Moore635374e2009-03-09 01:21:12 -0600874 him_register = readl(&ioc->chip->HostInterruptMask);
875 him_register &= ~MPI2_HIM_RIM;
876 writel(him_register, &ioc->chip->HostInterruptMask);
877 ioc->mask_interrupts = 0;
878}
879
Kashyap, Desai5b768582009-08-20 13:24:31 +0530880union reply_descriptor {
881 u64 word;
882 struct {
883 u32 low;
884 u32 high;
885 } u;
886};
887
Eric Moore635374e2009-03-09 01:21:12 -0600888/**
889 * _base_interrupt - MPT adapter (IOC) specific interrupt handler.
890 * @irq: irq number (not used)
891 * @bus_id: bus identifier cookie == pointer to MPT_ADAPTER structure
892 * @r: pt_regs pointer (not used)
893 *
894 * Return IRQ_HANDLE if processed, else IRQ_NONE.
895 */
896static irqreturn_t
897_base_interrupt(int irq, void *bus_id)
898{
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530899 struct adapter_reply_queue *reply_q = bus_id;
Eric Moore03ea1112009-04-21 15:37:57 -0600900 union reply_descriptor rd;
Kashyap, Desai5b768582009-08-20 13:24:31 +0530901 u32 completed_cmds;
Eric Moore635374e2009-03-09 01:21:12 -0600902 u8 request_desript_type;
903 u16 smid;
904 u8 cb_idx;
905 u32 reply;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530906 u8 msix_index = reply_q->msix_index;
907 struct MPT2SAS_ADAPTER *ioc = reply_q->ioc;
Kashyap, Desai5b768582009-08-20 13:24:31 +0530908 Mpi2ReplyDescriptorsUnion_t *rpf;
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530909 u8 rc;
Eric Moore635374e2009-03-09 01:21:12 -0600910
911 if (ioc->mask_interrupts)
912 return IRQ_NONE;
913
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530914 if (!atomic_add_unless(&reply_q->busy, 1, 1))
915 return IRQ_NONE;
916
917 rpf = &reply_q->reply_post_free[reply_q->reply_post_host_index];
Kashyap, Desai5b768582009-08-20 13:24:31 +0530918 request_desript_type = rpf->Default.ReplyFlags
919 & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530920 if (request_desript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED) {
921 atomic_dec(&reply_q->busy);
Eric Moore635374e2009-03-09 01:21:12 -0600922 return IRQ_NONE;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530923 }
Eric Moore635374e2009-03-09 01:21:12 -0600924
925 completed_cmds = 0;
Kashyap, Desaidd3741d2010-11-13 04:31:14 +0530926 cb_idx = 0xFF;
Eric Moore635374e2009-03-09 01:21:12 -0600927 do {
Kashyap, Desaic97951e2011-06-14 10:54:56 +0530928 rd.word = le64_to_cpu(rpf->Words);
Eric Moore03ea1112009-04-21 15:37:57 -0600929 if (rd.u.low == UINT_MAX || rd.u.high == UINT_MAX)
Eric Moore635374e2009-03-09 01:21:12 -0600930 goto out;
931 reply = 0;
Kashyap, Desai5b768582009-08-20 13:24:31 +0530932 smid = le16_to_cpu(rpf->Default.DescriptorTypeDependent1);
Eric Moore635374e2009-03-09 01:21:12 -0600933 if (request_desript_type ==
934 MPI2_RPY_DESCRIPT_FLAGS_ADDRESS_REPLY) {
Kashyap, Desai5b768582009-08-20 13:24:31 +0530935 reply = le32_to_cpu
936 (rpf->AddressReply.ReplyFrameAddress);
Kashyap, Desaidd3741d2010-11-13 04:31:14 +0530937 if (reply > ioc->reply_dma_max_address ||
938 reply < ioc->reply_dma_min_address)
939 reply = 0;
Eric Moore635374e2009-03-09 01:21:12 -0600940 } else if (request_desript_type ==
941 MPI2_RPY_DESCRIPT_FLAGS_TARGET_COMMAND_BUFFER)
942 goto next;
943 else if (request_desript_type ==
944 MPI2_RPY_DESCRIPT_FLAGS_TARGETASSIST_SUCCESS)
945 goto next;
946 if (smid)
Kashyap, Desai595bb0b2009-09-14 11:02:48 +0530947 cb_idx = _base_get_cb_idx(ioc, smid);
Eric Moore635374e2009-03-09 01:21:12 -0600948 if (smid && cb_idx != 0xFF) {
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530949 rc = mpt_callbacks[cb_idx](ioc, smid, msix_index,
Kashyap, Desai595bb0b2009-09-14 11:02:48 +0530950 reply);
Eric Moore635374e2009-03-09 01:21:12 -0600951 if (reply)
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530952 _base_display_reply_info(ioc, smid, msix_index,
Eric Moore635374e2009-03-09 01:21:12 -0600953 reply);
Kashyap, Desai77e63ed2009-09-14 11:04:23 +0530954 if (rc)
955 mpt2sas_base_free_smid(ioc, smid);
Eric Moore635374e2009-03-09 01:21:12 -0600956 }
957 if (!smid)
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530958 _base_async_event(ioc, msix_index, reply);
Eric Moore635374e2009-03-09 01:21:12 -0600959
960 /* reply free queue handling */
961 if (reply) {
962 ioc->reply_free_host_index =
963 (ioc->reply_free_host_index ==
964 (ioc->reply_free_queue_depth - 1)) ?
965 0 : ioc->reply_free_host_index + 1;
966 ioc->reply_free[ioc->reply_free_host_index] =
967 cpu_to_le32(reply);
Kashyap, Desai5b768582009-08-20 13:24:31 +0530968 wmb();
Eric Moore635374e2009-03-09 01:21:12 -0600969 writel(ioc->reply_free_host_index,
970 &ioc->chip->ReplyFreeHostIndex);
Eric Moore635374e2009-03-09 01:21:12 -0600971 }
972
973 next:
Kashyap, Desai5b768582009-08-20 13:24:31 +0530974
Kashyap, Desaic97951e2011-06-14 10:54:56 +0530975 rpf->Words = cpu_to_le64(ULLONG_MAX);
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530976 reply_q->reply_post_host_index =
977 (reply_q->reply_post_host_index ==
Kashyap, Desai5b768582009-08-20 13:24:31 +0530978 (ioc->reply_post_queue_depth - 1)) ? 0 :
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530979 reply_q->reply_post_host_index + 1;
Eric Moore635374e2009-03-09 01:21:12 -0600980 request_desript_type =
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530981 reply_q->reply_post_free[reply_q->reply_post_host_index].
982 Default.ReplyFlags & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
Eric Moore635374e2009-03-09 01:21:12 -0600983 completed_cmds++;
984 if (request_desript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED)
985 goto out;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530986 if (!reply_q->reply_post_host_index)
987 rpf = reply_q->reply_post_free;
Kashyap, Desai5b768582009-08-20 13:24:31 +0530988 else
989 rpf++;
Eric Moore635374e2009-03-09 01:21:12 -0600990 } while (1);
991
992 out:
993
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530994 if (!completed_cmds) {
995 atomic_dec(&reply_q->busy);
Eric Moore635374e2009-03-09 01:21:12 -0600996 return IRQ_NONE;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530997 }
Eric Moore635374e2009-03-09 01:21:12 -0600998 wmb();
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +0530999 if (ioc->is_warpdrive) {
1000 writel(reply_q->reply_post_host_index,
1001 ioc->reply_post_host_index[msix_index]);
1002 atomic_dec(&reply_q->busy);
1003 return IRQ_HANDLED;
1004 }
1005 writel(reply_q->reply_post_host_index | (msix_index <<
1006 MPI2_RPHI_MSIX_INDEX_SHIFT), &ioc->chip->ReplyPostHostIndex);
1007 atomic_dec(&reply_q->busy);
Eric Moore635374e2009-03-09 01:21:12 -06001008 return IRQ_HANDLED;
1009}
1010
1011/**
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301012 * _base_is_controller_msix_enabled - is controller support muli-reply queues
1013 * @ioc: per adapter object
1014 *
1015 */
1016static inline int
1017_base_is_controller_msix_enabled(struct MPT2SAS_ADAPTER *ioc)
1018{
1019 return (ioc->facts.IOCCapabilities &
1020 MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX) && ioc->msix_enable;
1021}
1022
1023/**
1024 * mpt2sas_base_flush_reply_queues - flushing the MSIX reply queues
1025 * @ioc: per adapter object
1026 * Context: ISR conext
1027 *
1028 * Called when a Task Management request has completed. We want
1029 * to flush the other reply queues so all the outstanding IO has been
1030 * completed back to OS before we process the TM completetion.
1031 *
1032 * Return nothing.
1033 */
1034void
1035mpt2sas_base_flush_reply_queues(struct MPT2SAS_ADAPTER *ioc)
1036{
1037 struct adapter_reply_queue *reply_q;
1038
1039 /* If MSIX capability is turned off
1040 * then multi-queues are not enabled
1041 */
1042 if (!_base_is_controller_msix_enabled(ioc))
1043 return;
1044
1045 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) {
1046 if (ioc->shost_recovery)
1047 return;
1048 /* TMs are on msix_index == 0 */
1049 if (reply_q->msix_index == 0)
1050 continue;
1051 _base_interrupt(reply_q->vector, (void *)reply_q);
1052 }
1053}
1054
1055/**
Lucas De Marchi25985ed2011-03-30 22:57:33 -03001056 * mpt2sas_base_release_callback_handler - clear interrupt callback handler
Eric Moore635374e2009-03-09 01:21:12 -06001057 * @cb_idx: callback index
1058 *
1059 * Return nothing.
1060 */
1061void
1062mpt2sas_base_release_callback_handler(u8 cb_idx)
1063{
1064 mpt_callbacks[cb_idx] = NULL;
1065}
1066
1067/**
1068 * mpt2sas_base_register_callback_handler - obtain index for the interrupt callback handler
1069 * @cb_func: callback function
1070 *
1071 * Returns cb_func.
1072 */
1073u8
1074mpt2sas_base_register_callback_handler(MPT_CALLBACK cb_func)
1075{
1076 u8 cb_idx;
1077
1078 for (cb_idx = MPT_MAX_CALLBACKS-1; cb_idx; cb_idx--)
1079 if (mpt_callbacks[cb_idx] == NULL)
1080 break;
1081
1082 mpt_callbacks[cb_idx] = cb_func;
1083 return cb_idx;
1084}
1085
1086/**
1087 * mpt2sas_base_initialize_callback_handler - initialize the interrupt callback handler
1088 *
1089 * Return nothing.
1090 */
1091void
1092mpt2sas_base_initialize_callback_handler(void)
1093{
1094 u8 cb_idx;
1095
1096 for (cb_idx = 0; cb_idx < MPT_MAX_CALLBACKS; cb_idx++)
1097 mpt2sas_base_release_callback_handler(cb_idx);
1098}
1099
1100/**
1101 * mpt2sas_base_build_zero_len_sge - build zero length sg entry
1102 * @ioc: per adapter object
1103 * @paddr: virtual address for SGE
1104 *
1105 * Create a zero length scatter gather entry to insure the IOCs hardware has
1106 * something to use if the target device goes brain dead and tries
1107 * to send data even when none is asked for.
1108 *
1109 * Return nothing.
1110 */
1111void
1112mpt2sas_base_build_zero_len_sge(struct MPT2SAS_ADAPTER *ioc, void *paddr)
1113{
1114 u32 flags_length = (u32)((MPI2_SGE_FLAGS_LAST_ELEMENT |
1115 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST |
1116 MPI2_SGE_FLAGS_SIMPLE_ELEMENT) <<
1117 MPI2_SGE_FLAGS_SHIFT);
1118 ioc->base_add_sg_single(paddr, flags_length, -1);
1119}
1120
1121/**
1122 * _base_add_sg_single_32 - Place a simple 32 bit SGE at address pAddr.
1123 * @paddr: virtual address for SGE
1124 * @flags_length: SGE flags and data transfer length
1125 * @dma_addr: Physical address
1126 *
1127 * Return nothing.
1128 */
1129static void
1130_base_add_sg_single_32(void *paddr, u32 flags_length, dma_addr_t dma_addr)
1131{
1132 Mpi2SGESimple32_t *sgel = paddr;
1133
1134 flags_length |= (MPI2_SGE_FLAGS_32_BIT_ADDRESSING |
1135 MPI2_SGE_FLAGS_SYSTEM_ADDRESS) << MPI2_SGE_FLAGS_SHIFT;
1136 sgel->FlagsLength = cpu_to_le32(flags_length);
1137 sgel->Address = cpu_to_le32(dma_addr);
1138}
1139
1140
1141/**
1142 * _base_add_sg_single_64 - Place a simple 64 bit SGE at address pAddr.
1143 * @paddr: virtual address for SGE
1144 * @flags_length: SGE flags and data transfer length
1145 * @dma_addr: Physical address
1146 *
1147 * Return nothing.
1148 */
1149static void
1150_base_add_sg_single_64(void *paddr, u32 flags_length, dma_addr_t dma_addr)
1151{
1152 Mpi2SGESimple64_t *sgel = paddr;
1153
1154 flags_length |= (MPI2_SGE_FLAGS_64_BIT_ADDRESSING |
1155 MPI2_SGE_FLAGS_SYSTEM_ADDRESS) << MPI2_SGE_FLAGS_SHIFT;
1156 sgel->FlagsLength = cpu_to_le32(flags_length);
1157 sgel->Address = cpu_to_le64(dma_addr);
1158}
1159
1160#define convert_to_kb(x) ((x) << (PAGE_SHIFT - 10))
1161
1162/**
1163 * _base_config_dma_addressing - set dma addressing
1164 * @ioc: per adapter object
1165 * @pdev: PCI device struct
1166 *
1167 * Returns 0 for success, non-zero for failure.
1168 */
1169static int
1170_base_config_dma_addressing(struct MPT2SAS_ADAPTER *ioc, struct pci_dev *pdev)
1171{
1172 struct sysinfo s;
1173 char *desc = NULL;
1174
1175 if (sizeof(dma_addr_t) > 4) {
1176 const uint64_t required_mask =
1177 dma_get_required_mask(&pdev->dev);
Yang Hongyange9304382009-04-13 14:40:14 -07001178 if ((required_mask > DMA_BIT_MASK(32)) && !pci_set_dma_mask(pdev,
1179 DMA_BIT_MASK(64)) && !pci_set_consistent_dma_mask(pdev,
1180 DMA_BIT_MASK(64))) {
Eric Moore635374e2009-03-09 01:21:12 -06001181 ioc->base_add_sg_single = &_base_add_sg_single_64;
1182 ioc->sge_size = sizeof(Mpi2SGESimple64_t);
1183 desc = "64";
1184 goto out;
1185 }
1186 }
1187
Yang Hongyange9304382009-04-13 14:40:14 -07001188 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
1189 && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
Eric Moore635374e2009-03-09 01:21:12 -06001190 ioc->base_add_sg_single = &_base_add_sg_single_32;
1191 ioc->sge_size = sizeof(Mpi2SGESimple32_t);
1192 desc = "32";
1193 } else
1194 return -ENODEV;
1195
1196 out:
1197 si_meminfo(&s);
1198 printk(MPT2SAS_INFO_FMT "%s BIT PCI BUS DMA ADDRESSING SUPPORTED, "
1199 "total mem (%ld kB)\n", ioc->name, desc, convert_to_kb(s.totalram));
1200
1201 return 0;
1202}
1203
1204/**
Eric Moore635374e2009-03-09 01:21:12 -06001205 * _base_check_enable_msix - checks MSIX capabable.
1206 * @ioc: per adapter object
1207 *
1208 * Check to see if card is capable of MSIX, and set number
Lucas De Marchi25985ed2011-03-30 22:57:33 -03001209 * of available msix vectors
Eric Moore635374e2009-03-09 01:21:12 -06001210 */
1211static int
1212_base_check_enable_msix(struct MPT2SAS_ADAPTER *ioc)
1213{
1214 int base;
1215 u16 message_control;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301216
Eric Moore635374e2009-03-09 01:21:12 -06001217
1218 base = pci_find_capability(ioc->pdev, PCI_CAP_ID_MSIX);
1219 if (!base) {
1220 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "msix not "
1221 "supported\n", ioc->name));
1222 return -EINVAL;
1223 }
1224
1225 /* get msix vector count */
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301226 /* NUMA_IO not supported for older controllers */
1227 if (ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2004 ||
1228 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2008 ||
1229 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2108_1 ||
1230 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2108_2 ||
1231 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2108_3 ||
1232 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2116_1 ||
1233 ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2116_2)
1234 ioc->msix_vector_count = 1;
1235 else {
1236 pci_read_config_word(ioc->pdev, base + 2, &message_control);
1237 ioc->msix_vector_count = (message_control & 0x3FF) + 1;
1238 }
Eric Moore635374e2009-03-09 01:21:12 -06001239 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "msix is supported, "
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301240 "vector_count(%d)\n", ioc->name, ioc->msix_vector_count));
1241
Eric Moore635374e2009-03-09 01:21:12 -06001242 return 0;
1243}
1244
1245/**
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301246 * _base_free_irq - free irq
1247 * @ioc: per adapter object
1248 *
1249 * Freeing respective reply_queue from the list.
1250 */
1251static void
1252_base_free_irq(struct MPT2SAS_ADAPTER *ioc)
1253{
1254 struct adapter_reply_queue *reply_q, *next;
1255
1256 if (list_empty(&ioc->reply_queue_list))
1257 return;
1258
1259 list_for_each_entry_safe(reply_q, next, &ioc->reply_queue_list, list) {
1260 list_del(&reply_q->list);
1261 synchronize_irq(reply_q->vector);
1262 free_irq(reply_q->vector, reply_q);
1263 kfree(reply_q);
1264 }
1265}
1266
1267/**
1268 * _base_request_irq - request irq
1269 * @ioc: per adapter object
1270 * @index: msix index into vector table
1271 * @vector: irq vector
1272 *
1273 * Inserting respective reply_queue into the list.
1274 */
1275static int
1276_base_request_irq(struct MPT2SAS_ADAPTER *ioc, u8 index, u32 vector)
1277{
1278 struct adapter_reply_queue *reply_q;
1279 int r;
1280
1281 reply_q = kzalloc(sizeof(struct adapter_reply_queue), GFP_KERNEL);
1282 if (!reply_q) {
1283 printk(MPT2SAS_ERR_FMT "unable to allocate memory %d!\n",
1284 ioc->name, (int)sizeof(struct adapter_reply_queue));
1285 return -ENOMEM;
1286 }
1287 reply_q->ioc = ioc;
1288 reply_q->msix_index = index;
1289 reply_q->vector = vector;
1290 atomic_set(&reply_q->busy, 0);
1291 if (ioc->msix_enable)
1292 snprintf(reply_q->name, MPT_NAME_LENGTH, "%s%d-msix%d",
1293 MPT2SAS_DRIVER_NAME, ioc->id, index);
1294 else
1295 snprintf(reply_q->name, MPT_NAME_LENGTH, "%s%d",
1296 MPT2SAS_DRIVER_NAME, ioc->id);
1297 r = request_irq(vector, _base_interrupt, IRQF_SHARED, reply_q->name,
1298 reply_q);
1299 if (r) {
1300 printk(MPT2SAS_ERR_FMT "unable to allocate interrupt %d!\n",
1301 reply_q->name, vector);
1302 kfree(reply_q);
1303 return -EBUSY;
1304 }
1305
1306 INIT_LIST_HEAD(&reply_q->list);
1307 list_add_tail(&reply_q->list, &ioc->reply_queue_list);
1308 return 0;
1309}
1310
1311/**
1312 * _base_assign_reply_queues - assigning msix index for each cpu
1313 * @ioc: per adapter object
1314 *
1315 * The enduser would need to set the affinity via /proc/irq/#/smp_affinity
1316 *
1317 * It would nice if we could call irq_set_affinity, however it is not
1318 * an exported symbol
1319 */
1320static void
1321_base_assign_reply_queues(struct MPT2SAS_ADAPTER *ioc)
1322{
1323 struct adapter_reply_queue *reply_q;
1324 int cpu_id;
1325 int cpu_grouping, loop, grouping, grouping_mod;
1326
1327 if (!_base_is_controller_msix_enabled(ioc))
1328 return;
1329
1330 memset(ioc->cpu_msix_table, 0, ioc->cpu_msix_table_sz);
1331 /* when there are more cpus than available msix vectors,
1332 * then group cpus togeather on same irq
1333 */
1334 if (ioc->cpu_count > ioc->msix_vector_count) {
1335 grouping = ioc->cpu_count / ioc->msix_vector_count;
1336 grouping_mod = ioc->cpu_count % ioc->msix_vector_count;
1337 if (grouping < 2 || (grouping == 2 && !grouping_mod))
1338 cpu_grouping = 2;
1339 else if (grouping < 4 || (grouping == 4 && !grouping_mod))
1340 cpu_grouping = 4;
1341 else if (grouping < 8 || (grouping == 8 && !grouping_mod))
1342 cpu_grouping = 8;
1343 else
1344 cpu_grouping = 16;
1345 } else
1346 cpu_grouping = 0;
1347
1348 loop = 0;
1349 reply_q = list_entry(ioc->reply_queue_list.next,
1350 struct adapter_reply_queue, list);
1351 for_each_online_cpu(cpu_id) {
1352 if (!cpu_grouping) {
1353 ioc->cpu_msix_table[cpu_id] = reply_q->msix_index;
1354 reply_q = list_entry(reply_q->list.next,
1355 struct adapter_reply_queue, list);
1356 } else {
1357 if (loop < cpu_grouping) {
1358 ioc->cpu_msix_table[cpu_id] =
1359 reply_q->msix_index;
1360 loop++;
1361 } else {
1362 reply_q = list_entry(reply_q->list.next,
1363 struct adapter_reply_queue, list);
1364 ioc->cpu_msix_table[cpu_id] =
1365 reply_q->msix_index;
1366 loop = 1;
1367 }
1368 }
1369 }
1370}
1371
1372/**
Eric Moore635374e2009-03-09 01:21:12 -06001373 * _base_disable_msix - disables msix
1374 * @ioc: per adapter object
1375 *
1376 */
1377static void
1378_base_disable_msix(struct MPT2SAS_ADAPTER *ioc)
1379{
1380 if (ioc->msix_enable) {
1381 pci_disable_msix(ioc->pdev);
Eric Moore635374e2009-03-09 01:21:12 -06001382 ioc->msix_enable = 0;
1383 }
1384}
1385
1386/**
1387 * _base_enable_msix - enables msix, failback to io_apic
1388 * @ioc: per adapter object
1389 *
1390 */
1391static int
1392_base_enable_msix(struct MPT2SAS_ADAPTER *ioc)
1393{
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301394 struct msix_entry *entries, *a;
Eric Moore635374e2009-03-09 01:21:12 -06001395 int r;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301396 int i;
Eric Moore635374e2009-03-09 01:21:12 -06001397 u8 try_msix = 0;
1398
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301399 INIT_LIST_HEAD(&ioc->reply_queue_list);
1400
Eric Moore635374e2009-03-09 01:21:12 -06001401 if (msix_disable == -1 || msix_disable == 0)
1402 try_msix = 1;
1403
1404 if (!try_msix)
1405 goto try_ioapic;
1406
1407 if (_base_check_enable_msix(ioc) != 0)
1408 goto try_ioapic;
1409
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301410 ioc->reply_queue_count = min_t(u8, ioc->cpu_count,
1411 ioc->msix_vector_count);
1412
1413 entries = kcalloc(ioc->reply_queue_count, sizeof(struct msix_entry),
1414 GFP_KERNEL);
1415 if (!entries) {
1416 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "kcalloc "
1417 "failed @ at %s:%d/%s() !!!\n", ioc->name, __FILE__,
1418 __LINE__, __func__));
Eric Moore635374e2009-03-09 01:21:12 -06001419 goto try_ioapic;
1420 }
1421
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301422 for (i = 0, a = entries; i < ioc->reply_queue_count; i++, a++)
1423 a->entry = i;
1424
1425 r = pci_enable_msix(ioc->pdev, entries, ioc->reply_queue_count);
Eric Moore635374e2009-03-09 01:21:12 -06001426 if (r) {
1427 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "pci_enable_msix "
1428 "failed (r=%d) !!!\n", ioc->name, r));
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301429 kfree(entries);
Eric Moore635374e2009-03-09 01:21:12 -06001430 goto try_ioapic;
1431 }
1432
Eric Moore635374e2009-03-09 01:21:12 -06001433 ioc->msix_enable = 1;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301434 for (i = 0, a = entries; i < ioc->reply_queue_count; i++, a++) {
1435 r = _base_request_irq(ioc, i, a->vector);
1436 if (r) {
1437 _base_free_irq(ioc);
1438 _base_disable_msix(ioc);
1439 kfree(entries);
1440 goto try_ioapic;
1441 }
1442 }
1443
1444 kfree(entries);
Eric Moore635374e2009-03-09 01:21:12 -06001445 return 0;
1446
1447/* failback to io_apic interrupt routing */
1448 try_ioapic:
1449
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301450 r = _base_request_irq(ioc, 0, ioc->pdev->irq);
Eric Moore635374e2009-03-09 01:21:12 -06001451
Eric Moore635374e2009-03-09 01:21:12 -06001452 return r;
1453}
1454
1455/**
1456 * mpt2sas_base_map_resources - map in controller resources (io/irq/memap)
1457 * @ioc: per adapter object
1458 *
1459 * Returns 0 for success, non-zero for failure.
1460 */
1461int
1462mpt2sas_base_map_resources(struct MPT2SAS_ADAPTER *ioc)
1463{
1464 struct pci_dev *pdev = ioc->pdev;
1465 u32 memap_sz;
1466 u32 pio_sz;
1467 int i, r = 0;
Kashyap, Desai6846e752009-12-16 18:51:45 +05301468 u64 pio_chip = 0;
1469 u64 chip_phys = 0;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301470 struct adapter_reply_queue *reply_q;
Eric Moore635374e2009-03-09 01:21:12 -06001471
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05301472 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n",
Eric Moore635374e2009-03-09 01:21:12 -06001473 ioc->name, __func__));
1474
1475 ioc->bars = pci_select_bars(pdev, IORESOURCE_MEM);
1476 if (pci_enable_device_mem(pdev)) {
1477 printk(MPT2SAS_WARN_FMT "pci_enable_device_mem: "
1478 "failed\n", ioc->name);
1479 return -ENODEV;
1480 }
1481
1482
1483 if (pci_request_selected_regions(pdev, ioc->bars,
1484 MPT2SAS_DRIVER_NAME)) {
1485 printk(MPT2SAS_WARN_FMT "pci_request_selected_regions: "
1486 "failed\n", ioc->name);
1487 r = -ENODEV;
1488 goto out_fail;
1489 }
1490
Kashyap, Desaief7c80c2010-04-05 14:20:07 +05301491 /* AER (Advanced Error Reporting) hooks */
1492 pci_enable_pcie_error_reporting(pdev);
1493
Eric Moore635374e2009-03-09 01:21:12 -06001494 pci_set_master(pdev);
1495
1496 if (_base_config_dma_addressing(ioc, pdev) != 0) {
1497 printk(MPT2SAS_WARN_FMT "no suitable DMA mask for %s\n",
1498 ioc->name, pci_name(pdev));
1499 r = -ENODEV;
1500 goto out_fail;
1501 }
1502
1503 for (i = 0, memap_sz = 0, pio_sz = 0 ; i < DEVICE_COUNT_RESOURCE; i++) {
Richard A Laryfc193172010-03-12 15:27:06 -08001504 if (pci_resource_flags(pdev, i) & IORESOURCE_IO) {
Eric Moore635374e2009-03-09 01:21:12 -06001505 if (pio_sz)
1506 continue;
Kashyap, Desai6846e752009-12-16 18:51:45 +05301507 pio_chip = (u64)pci_resource_start(pdev, i);
Eric Moore635374e2009-03-09 01:21:12 -06001508 pio_sz = pci_resource_len(pdev, i);
1509 } else {
1510 if (memap_sz)
1511 continue;
Richard A Laryfc193172010-03-12 15:27:06 -08001512 /* verify memory resource is valid before using */
1513 if (pci_resource_flags(pdev, i) & IORESOURCE_MEM) {
1514 ioc->chip_phys = pci_resource_start(pdev, i);
1515 chip_phys = (u64)ioc->chip_phys;
1516 memap_sz = pci_resource_len(pdev, i);
1517 ioc->chip = ioremap(ioc->chip_phys, memap_sz);
1518 if (ioc->chip == NULL) {
1519 printk(MPT2SAS_ERR_FMT "unable to map "
1520 "adapter memory!\n", ioc->name);
1521 r = -EINVAL;
1522 goto out_fail;
1523 }
Eric Moore635374e2009-03-09 01:21:12 -06001524 }
1525 }
1526 }
1527
Eric Moore635374e2009-03-09 01:21:12 -06001528 _base_mask_interrupts(ioc);
1529 r = _base_enable_msix(ioc);
1530 if (r)
1531 goto out_fail;
1532
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301533 list_for_each_entry(reply_q, &ioc->reply_queue_list, list)
1534 printk(MPT2SAS_INFO_FMT "%s: IRQ %d\n",
1535 reply_q->name, ((ioc->msix_enable) ? "PCI-MSI-X enabled" :
1536 "IO-APIC enabled"), reply_q->vector);
1537
Kashyap, Desai6846e752009-12-16 18:51:45 +05301538 printk(MPT2SAS_INFO_FMT "iomem(0x%016llx), mapped(0x%p), size(%d)\n",
1539 ioc->name, (unsigned long long)chip_phys, ioc->chip, memap_sz);
1540 printk(MPT2SAS_INFO_FMT "ioport(0x%016llx), size(%d)\n",
1541 ioc->name, (unsigned long long)pio_chip, pio_sz);
Eric Moore635374e2009-03-09 01:21:12 -06001542
Eric Moore3cb54692010-07-08 14:44:34 -06001543 /* Save PCI configuration state for recovery from PCI AER/EEH errors */
1544 pci_save_state(pdev);
1545
Eric Moore635374e2009-03-09 01:21:12 -06001546 return 0;
1547
1548 out_fail:
1549 if (ioc->chip_phys)
1550 iounmap(ioc->chip);
1551 ioc->chip_phys = 0;
Eric Moore635374e2009-03-09 01:21:12 -06001552 pci_release_selected_regions(ioc->pdev, ioc->bars);
Kashyap, Desaief7c80c2010-04-05 14:20:07 +05301553 pci_disable_pcie_error_reporting(pdev);
Eric Moore635374e2009-03-09 01:21:12 -06001554 pci_disable_device(pdev);
Eric Moore635374e2009-03-09 01:21:12 -06001555 return r;
1556}
1557
1558/**
Eric Moore635374e2009-03-09 01:21:12 -06001559 * mpt2sas_base_get_msg_frame - obtain request mf pointer
1560 * @ioc: per adapter object
1561 * @smid: system request message index(smid zero is invalid)
1562 *
1563 * Returns virt pointer to message frame.
1564 */
1565void *
1566mpt2sas_base_get_msg_frame(struct MPT2SAS_ADAPTER *ioc, u16 smid)
1567{
1568 return (void *)(ioc->request + (smid * ioc->request_sz));
1569}
1570
1571/**
1572 * mpt2sas_base_get_sense_buffer - obtain a sense buffer assigned to a mf request
1573 * @ioc: per adapter object
1574 * @smid: system request message index
1575 *
1576 * Returns virt pointer to sense buffer.
1577 */
1578void *
1579mpt2sas_base_get_sense_buffer(struct MPT2SAS_ADAPTER *ioc, u16 smid)
1580{
1581 return (void *)(ioc->sense + ((smid - 1) * SCSI_SENSE_BUFFERSIZE));
1582}
1583
1584/**
1585 * mpt2sas_base_get_sense_buffer_dma - obtain a sense buffer assigned to a mf request
1586 * @ioc: per adapter object
1587 * @smid: system request message index
1588 *
Kashyap, Desaiec9472c2009-09-23 17:34:13 +05301589 * Returns phys pointer to the low 32bit address of the sense buffer.
Eric Moore635374e2009-03-09 01:21:12 -06001590 */
Kashyap, Desaiec9472c2009-09-23 17:34:13 +05301591__le32
Eric Moore635374e2009-03-09 01:21:12 -06001592mpt2sas_base_get_sense_buffer_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid)
1593{
Kashyap, Desaiec9472c2009-09-23 17:34:13 +05301594 return cpu_to_le32(ioc->sense_dma +
1595 ((smid - 1) * SCSI_SENSE_BUFFERSIZE));
Eric Moore635374e2009-03-09 01:21:12 -06001596}
1597
1598/**
1599 * mpt2sas_base_get_reply_virt_addr - obtain reply frames virt address
1600 * @ioc: per adapter object
1601 * @phys_addr: lower 32 physical addr of the reply
1602 *
1603 * Converts 32bit lower physical addr into a virt address.
1604 */
1605void *
1606mpt2sas_base_get_reply_virt_addr(struct MPT2SAS_ADAPTER *ioc, u32 phys_addr)
1607{
1608 if (!phys_addr)
1609 return NULL;
1610 return ioc->reply + (phys_addr - (u32)ioc->reply_dma);
1611}
1612
1613/**
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05301614 * mpt2sas_base_get_smid - obtain a free smid from internal queue
Eric Moore635374e2009-03-09 01:21:12 -06001615 * @ioc: per adapter object
1616 * @cb_idx: callback index
1617 *
1618 * Returns smid (zero is invalid)
1619 */
1620u16
1621mpt2sas_base_get_smid(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx)
1622{
1623 unsigned long flags;
1624 struct request_tracker *request;
1625 u16 smid;
1626
1627 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05301628 if (list_empty(&ioc->internal_free_list)) {
1629 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1630 printk(MPT2SAS_ERR_FMT "%s: smid not available\n",
1631 ioc->name, __func__);
1632 return 0;
1633 }
1634
1635 request = list_entry(ioc->internal_free_list.next,
1636 struct request_tracker, tracker_list);
1637 request->cb_idx = cb_idx;
1638 smid = request->smid;
1639 list_del(&request->tracker_list);
1640 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1641 return smid;
1642}
1643
1644/**
1645 * mpt2sas_base_get_smid_scsiio - obtain a free smid from scsiio queue
1646 * @ioc: per adapter object
1647 * @cb_idx: callback index
1648 * @scmd: pointer to scsi command object
1649 *
1650 * Returns smid (zero is invalid)
1651 */
1652u16
1653mpt2sas_base_get_smid_scsiio(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx,
1654 struct scsi_cmnd *scmd)
1655{
1656 unsigned long flags;
Kashyap, Desaid5bd3492011-01-04 11:39:20 +05301657 struct scsiio_tracker *request;
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05301658 u16 smid;
1659
1660 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
Eric Moore635374e2009-03-09 01:21:12 -06001661 if (list_empty(&ioc->free_list)) {
1662 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1663 printk(MPT2SAS_ERR_FMT "%s: smid not available\n",
1664 ioc->name, __func__);
1665 return 0;
1666 }
1667
1668 request = list_entry(ioc->free_list.next,
Kashyap, Desaid5bd3492011-01-04 11:39:20 +05301669 struct scsiio_tracker, tracker_list);
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05301670 request->scmd = scmd;
1671 request->cb_idx = cb_idx;
1672 smid = request->smid;
1673 list_del(&request->tracker_list);
1674 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1675 return smid;
1676}
1677
1678/**
1679 * mpt2sas_base_get_smid_hpr - obtain a free smid from hi-priority queue
1680 * @ioc: per adapter object
1681 * @cb_idx: callback index
1682 *
1683 * Returns smid (zero is invalid)
1684 */
1685u16
1686mpt2sas_base_get_smid_hpr(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx)
1687{
1688 unsigned long flags;
1689 struct request_tracker *request;
1690 u16 smid;
1691
1692 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1693 if (list_empty(&ioc->hpr_free_list)) {
1694 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1695 return 0;
1696 }
1697
1698 request = list_entry(ioc->hpr_free_list.next,
1699 struct request_tracker, tracker_list);
Eric Moore635374e2009-03-09 01:21:12 -06001700 request->cb_idx = cb_idx;
1701 smid = request->smid;
1702 list_del(&request->tracker_list);
1703 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1704 return smid;
1705}
1706
1707
1708/**
1709 * mpt2sas_base_free_smid - put smid back on free_list
1710 * @ioc: per adapter object
1711 * @smid: system request message index
1712 *
1713 * Return nothing.
1714 */
1715void
1716mpt2sas_base_free_smid(struct MPT2SAS_ADAPTER *ioc, u16 smid)
1717{
1718 unsigned long flags;
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05301719 int i;
Kashyap, Desai35f805b2010-11-13 04:34:06 +05301720 struct chain_tracker *chain_req, *next;
Eric Moore635374e2009-03-09 01:21:12 -06001721
1722 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
Kashyap, Desaid5bd3492011-01-04 11:39:20 +05301723 if (smid < ioc->hi_priority_smid) {
1724 /* scsiio queue */
1725 i = smid - 1;
1726 if (!list_empty(&ioc->scsi_lookup[i].chain_list)) {
1727 list_for_each_entry_safe(chain_req, next,
1728 &ioc->scsi_lookup[i].chain_list, tracker_list) {
1729 list_del_init(&chain_req->tracker_list);
1730 list_add_tail(&chain_req->tracker_list,
1731 &ioc->free_chain_list);
1732 }
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05301733 }
Kashyap, Desaid5bd3492011-01-04 11:39:20 +05301734 ioc->scsi_lookup[i].cb_idx = 0xFF;
1735 ioc->scsi_lookup[i].scmd = NULL;
Kashyap, Desai0bdccdb2011-04-07 12:32:49 +05301736 ioc->scsi_lookup[i].direct_io = 0;
Kashyap, Desaid5bd3492011-01-04 11:39:20 +05301737 list_add_tail(&ioc->scsi_lookup[i].tracker_list,
1738 &ioc->free_list);
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05301739 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05301740
Kashyap, Desaid5bd3492011-01-04 11:39:20 +05301741 /*
1742 * See _wait_for_commands_to_complete() call with regards
1743 * to this code.
1744 */
1745 if (ioc->shost_recovery && ioc->pending_io_count) {
1746 if (ioc->pending_io_count == 1)
1747 wake_up(&ioc->reset_wq);
1748 ioc->pending_io_count--;
Kashyap, Desai35f805b2010-11-13 04:34:06 +05301749 }
Kashyap, Desaid5bd3492011-01-04 11:39:20 +05301750 return;
1751 } else if (smid < ioc->internal_smid) {
1752 /* hi-priority */
1753 i = smid - ioc->hi_priority_smid;
1754 ioc->hpr_lookup[i].cb_idx = 0xFF;
1755 list_add_tail(&ioc->hpr_lookup[i].tracker_list,
1756 &ioc->hpr_free_list);
1757 } else if (smid <= ioc->hba_queue_depth) {
1758 /* internal queue */
1759 i = smid - ioc->internal_smid;
1760 ioc->internal_lookup[i].cb_idx = 0xFF;
1761 list_add_tail(&ioc->internal_lookup[i].tracker_list,
1762 &ioc->internal_free_list);
Kashyap, Desai35f805b2010-11-13 04:34:06 +05301763 }
Eric Moore635374e2009-03-09 01:21:12 -06001764 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
Eric Moore635374e2009-03-09 01:21:12 -06001765}
1766
1767/**
1768 * _base_writeq - 64 bit write to MMIO
1769 * @ioc: per adapter object
1770 * @b: data payload
1771 * @addr: address in MMIO space
1772 * @writeq_lock: spin lock
1773 *
1774 * Glue for handling an atomic 64 bit word to MMIO. This special handling takes
1775 * care of 32 bit environment where its not quarenteed to send the entire word
1776 * in one transfer.
1777 */
1778#ifndef writeq
1779static inline void _base_writeq(__u64 b, volatile void __iomem *addr,
1780 spinlock_t *writeq_lock)
1781{
1782 unsigned long flags;
1783 __u64 data_out = cpu_to_le64(b);
1784
1785 spin_lock_irqsave(writeq_lock, flags);
1786 writel((u32)(data_out), addr);
1787 writel((u32)(data_out >> 32), (addr + 4));
1788 spin_unlock_irqrestore(writeq_lock, flags);
1789}
1790#else
1791static inline void _base_writeq(__u64 b, volatile void __iomem *addr,
1792 spinlock_t *writeq_lock)
1793{
1794 writeq(cpu_to_le64(b), addr);
1795}
1796#endif
1797
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301798static inline u8
1799_base_get_msix_index(struct MPT2SAS_ADAPTER *ioc)
1800{
1801 return ioc->cpu_msix_table[smp_processor_id()];
1802}
1803
Eric Moore635374e2009-03-09 01:21:12 -06001804/**
1805 * mpt2sas_base_put_smid_scsi_io - send SCSI_IO request to firmware
1806 * @ioc: per adapter object
1807 * @smid: system request message index
Eric Moore635374e2009-03-09 01:21:12 -06001808 * @handle: device handle
1809 *
1810 * Return nothing.
1811 */
1812void
Kashyap, Desai7b936b02009-09-25 11:44:41 +05301813mpt2sas_base_put_smid_scsi_io(struct MPT2SAS_ADAPTER *ioc, u16 smid, u16 handle)
Eric Moore635374e2009-03-09 01:21:12 -06001814{
1815 Mpi2RequestDescriptorUnion_t descriptor;
1816 u64 *request = (u64 *)&descriptor;
1817
1818
1819 descriptor.SCSIIO.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301820 descriptor.SCSIIO.MSIxIndex = _base_get_msix_index(ioc);
Eric Moore635374e2009-03-09 01:21:12 -06001821 descriptor.SCSIIO.SMID = cpu_to_le16(smid);
1822 descriptor.SCSIIO.DevHandle = cpu_to_le16(handle);
1823 descriptor.SCSIIO.LMID = 0;
1824 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
1825 &ioc->scsi_lookup_lock);
1826}
1827
1828
1829/**
Lucas De Marchi25985ed2011-03-30 22:57:33 -03001830 * mpt2sas_base_put_smid_hi_priority - send Task Management request to firmware
Eric Moore635374e2009-03-09 01:21:12 -06001831 * @ioc: per adapter object
1832 * @smid: system request message index
Eric Moore635374e2009-03-09 01:21:12 -06001833 *
1834 * Return nothing.
1835 */
1836void
Kashyap, Desai7b936b02009-09-25 11:44:41 +05301837mpt2sas_base_put_smid_hi_priority(struct MPT2SAS_ADAPTER *ioc, u16 smid)
Eric Moore635374e2009-03-09 01:21:12 -06001838{
1839 Mpi2RequestDescriptorUnion_t descriptor;
1840 u64 *request = (u64 *)&descriptor;
1841
1842 descriptor.HighPriority.RequestFlags =
1843 MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301844 descriptor.HighPriority.MSIxIndex = 0;
Eric Moore635374e2009-03-09 01:21:12 -06001845 descriptor.HighPriority.SMID = cpu_to_le16(smid);
1846 descriptor.HighPriority.LMID = 0;
1847 descriptor.HighPriority.Reserved1 = 0;
1848 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
1849 &ioc->scsi_lookup_lock);
1850}
1851
1852/**
1853 * mpt2sas_base_put_smid_default - Default, primarily used for config pages
1854 * @ioc: per adapter object
1855 * @smid: system request message index
Eric Moore635374e2009-03-09 01:21:12 -06001856 *
1857 * Return nothing.
1858 */
1859void
Kashyap, Desai7b936b02009-09-25 11:44:41 +05301860mpt2sas_base_put_smid_default(struct MPT2SAS_ADAPTER *ioc, u16 smid)
Eric Moore635374e2009-03-09 01:21:12 -06001861{
1862 Mpi2RequestDescriptorUnion_t descriptor;
1863 u64 *request = (u64 *)&descriptor;
1864
1865 descriptor.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301866 descriptor.Default.MSIxIndex = _base_get_msix_index(ioc);
Eric Moore635374e2009-03-09 01:21:12 -06001867 descriptor.Default.SMID = cpu_to_le16(smid);
1868 descriptor.Default.LMID = 0;
1869 descriptor.Default.DescriptorTypeDependent = 0;
1870 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
1871 &ioc->scsi_lookup_lock);
1872}
1873
1874/**
1875 * mpt2sas_base_put_smid_target_assist - send Target Assist/Status to firmware
1876 * @ioc: per adapter object
1877 * @smid: system request message index
Eric Moore635374e2009-03-09 01:21:12 -06001878 * @io_index: value used to track the IO
1879 *
1880 * Return nothing.
1881 */
1882void
1883mpt2sas_base_put_smid_target_assist(struct MPT2SAS_ADAPTER *ioc, u16 smid,
Kashyap, Desai7b936b02009-09-25 11:44:41 +05301884 u16 io_index)
Eric Moore635374e2009-03-09 01:21:12 -06001885{
1886 Mpi2RequestDescriptorUnion_t descriptor;
1887 u64 *request = (u64 *)&descriptor;
1888
1889 descriptor.SCSITarget.RequestFlags =
1890 MPI2_REQ_DESCRIPT_FLAGS_SCSI_TARGET;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05301891 descriptor.SCSITarget.MSIxIndex = _base_get_msix_index(ioc);
Eric Moore635374e2009-03-09 01:21:12 -06001892 descriptor.SCSITarget.SMID = cpu_to_le16(smid);
1893 descriptor.SCSITarget.LMID = 0;
1894 descriptor.SCSITarget.IoIndex = cpu_to_le16(io_index);
1895 _base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
1896 &ioc->scsi_lookup_lock);
1897}
1898
1899/**
Eric Mooref0f9cc12009-04-21 15:40:48 -06001900 * _base_display_dell_branding - Disply branding string
1901 * @ioc: per adapter object
1902 *
1903 * Return nothing.
1904 */
1905static void
1906_base_display_dell_branding(struct MPT2SAS_ADAPTER *ioc)
1907{
1908 char dell_branding[MPT2SAS_DELL_BRANDING_SIZE];
1909
1910 if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_DELL)
1911 return;
1912
1913 memset(dell_branding, 0, MPT2SAS_DELL_BRANDING_SIZE);
1914 switch (ioc->pdev->subsystem_device) {
1915 case MPT2SAS_DELL_6GBPS_SAS_HBA_SSDID:
1916 strncpy(dell_branding, MPT2SAS_DELL_6GBPS_SAS_HBA_BRANDING,
1917 MPT2SAS_DELL_BRANDING_SIZE - 1);
1918 break;
1919 case MPT2SAS_DELL_PERC_H200_ADAPTER_SSDID:
1920 strncpy(dell_branding, MPT2SAS_DELL_PERC_H200_ADAPTER_BRANDING,
1921 MPT2SAS_DELL_BRANDING_SIZE - 1);
1922 break;
1923 case MPT2SAS_DELL_PERC_H200_INTEGRATED_SSDID:
1924 strncpy(dell_branding,
1925 MPT2SAS_DELL_PERC_H200_INTEGRATED_BRANDING,
1926 MPT2SAS_DELL_BRANDING_SIZE - 1);
1927 break;
1928 case MPT2SAS_DELL_PERC_H200_MODULAR_SSDID:
1929 strncpy(dell_branding,
1930 MPT2SAS_DELL_PERC_H200_MODULAR_BRANDING,
1931 MPT2SAS_DELL_BRANDING_SIZE - 1);
1932 break;
1933 case MPT2SAS_DELL_PERC_H200_EMBEDDED_SSDID:
1934 strncpy(dell_branding,
1935 MPT2SAS_DELL_PERC_H200_EMBEDDED_BRANDING,
1936 MPT2SAS_DELL_BRANDING_SIZE - 1);
1937 break;
1938 case MPT2SAS_DELL_PERC_H200_SSDID:
1939 strncpy(dell_branding, MPT2SAS_DELL_PERC_H200_BRANDING,
1940 MPT2SAS_DELL_BRANDING_SIZE - 1);
1941 break;
1942 case MPT2SAS_DELL_6GBPS_SAS_SSDID:
1943 strncpy(dell_branding, MPT2SAS_DELL_6GBPS_SAS_BRANDING,
1944 MPT2SAS_DELL_BRANDING_SIZE - 1);
1945 break;
1946 default:
1947 sprintf(dell_branding, "0x%4X", ioc->pdev->subsystem_device);
1948 break;
1949 }
1950
1951 printk(MPT2SAS_INFO_FMT "%s: Vendor(0x%04X), Device(0x%04X),"
1952 " SSVID(0x%04X), SSDID(0x%04X)\n", ioc->name, dell_branding,
1953 ioc->pdev->vendor, ioc->pdev->device, ioc->pdev->subsystem_vendor,
1954 ioc->pdev->subsystem_device);
1955}
1956
1957/**
Kashyap, Desaifb396be2011-01-04 11:36:37 +05301958 * _base_display_intel_branding - Display branding string
1959 * @ioc: per adapter object
1960 *
1961 * Return nothing.
1962 */
1963static void
1964_base_display_intel_branding(struct MPT2SAS_ADAPTER *ioc)
1965{
Kashyap, Desaiab3e5f62011-06-14 10:57:31 +05301966 if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_INTEL)
1967 return;
Kashyap, Desaifb396be2011-01-04 11:36:37 +05301968
Kashyap, Desaiab3e5f62011-06-14 10:57:31 +05301969 switch (ioc->pdev->device) {
1970 case MPI2_MFGPAGE_DEVID_SAS2008:
Kashyap, Desaifb396be2011-01-04 11:36:37 +05301971 switch (ioc->pdev->subsystem_device) {
1972 case MPT2SAS_INTEL_RMS2LL080_SSDID:
1973 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
1974 MPT2SAS_INTEL_RMS2LL080_BRANDING);
1975 break;
1976 case MPT2SAS_INTEL_RMS2LL040_SSDID:
1977 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
1978 MPT2SAS_INTEL_RMS2LL040_BRANDING);
1979 break;
nagalakshmi.nandigama@lsi.com70e73f92011-12-01 07:43:00 +05301980 case MPT2SAS_INTEL_RAMSDALE_SSDID:
1981 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
1982 MPT2SAS_INTEL_RAMSDALE_BRANDING);
1983 break;
Kashyap, Desaiab3e5f62011-06-14 10:57:31 +05301984 default:
1985 break;
Kashyap, Desaifb396be2011-01-04 11:36:37 +05301986 }
Kashyap, Desaiab3e5f62011-06-14 10:57:31 +05301987 case MPI2_MFGPAGE_DEVID_SAS2308_2:
1988 switch (ioc->pdev->subsystem_device) {
1989 case MPT2SAS_INTEL_RS25GB008_SSDID:
1990 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
1991 MPT2SAS_INTEL_RS25GB008_BRANDING);
1992 break;
nagalakshmi.nandigama@lsi.com8bad3052011-12-01 07:52:42 +05301993 case MPT2SAS_INTEL_RMS25JB080_SSDID:
1994 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
1995 MPT2SAS_INTEL_RMS25JB080_BRANDING);
1996 break;
1997 case MPT2SAS_INTEL_RMS25JB040_SSDID:
1998 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
1999 MPT2SAS_INTEL_RMS25JB040_BRANDING);
2000 break;
2001 case MPT2SAS_INTEL_RMS25KB080_SSDID:
2002 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
2003 MPT2SAS_INTEL_RMS25KB080_BRANDING);
2004 break;
2005 case MPT2SAS_INTEL_RMS25KB040_SSDID:
2006 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
2007 MPT2SAS_INTEL_RMS25KB040_BRANDING);
2008 break;
Kashyap, Desaiab3e5f62011-06-14 10:57:31 +05302009 default:
2010 break;
2011 }
2012 default:
2013 break;
Kashyap, Desaifb396be2011-01-04 11:36:37 +05302014 }
2015}
2016
2017/**
Kashyap, Desai0a2385c2011-03-15 20:04:26 +05302018 * _base_display_hp_branding - Display branding string
2019 * @ioc: per adapter object
2020 *
2021 * Return nothing.
2022 */
2023static void
2024_base_display_hp_branding(struct MPT2SAS_ADAPTER *ioc)
2025{
2026 if (ioc->pdev->subsystem_vendor != MPT2SAS_HP_3PAR_SSVID)
2027 return;
2028
2029 switch (ioc->pdev->device) {
2030 case MPI2_MFGPAGE_DEVID_SAS2004:
2031 switch (ioc->pdev->subsystem_device) {
2032 case MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_SSDID:
2033 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
2034 MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_BRANDING);
2035 break;
2036 default:
2037 break;
2038 }
2039 case MPI2_MFGPAGE_DEVID_SAS2308_2:
2040 switch (ioc->pdev->subsystem_device) {
2041 case MPT2SAS_HP_2_4_INTERNAL_SSDID:
2042 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
2043 MPT2SAS_HP_2_4_INTERNAL_BRANDING);
2044 break;
2045 case MPT2SAS_HP_2_4_EXTERNAL_SSDID:
2046 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
2047 MPT2SAS_HP_2_4_EXTERNAL_BRANDING);
2048 break;
2049 case MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_SSDID:
2050 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
2051 MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_BRANDING);
2052 break;
2053 case MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_SSDID:
2054 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
2055 MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_BRANDING);
2056 break;
2057 default:
2058 break;
2059 }
2060 default:
2061 break;
2062 }
2063}
2064
2065/**
Eric Moore635374e2009-03-09 01:21:12 -06002066 * _base_display_ioc_capabilities - Disply IOC's capabilities.
2067 * @ioc: per adapter object
2068 *
2069 * Return nothing.
2070 */
2071static void
2072_base_display_ioc_capabilities(struct MPT2SAS_ADAPTER *ioc)
2073{
2074 int i = 0;
2075 char desc[16];
2076 u8 revision;
2077 u32 iounit_pg1_flags;
Kashyap, Desaic97951e2011-06-14 10:54:56 +05302078 u32 bios_version;
Eric Moore635374e2009-03-09 01:21:12 -06002079
Kashyap, Desaic97951e2011-06-14 10:54:56 +05302080 bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
Eric Moore635374e2009-03-09 01:21:12 -06002081 pci_read_config_byte(ioc->pdev, PCI_CLASS_REVISION, &revision);
2082 strncpy(desc, ioc->manu_pg0.ChipName, 16);
2083 printk(MPT2SAS_INFO_FMT "%s: FWVersion(%02d.%02d.%02d.%02d), "
2084 "ChipRevision(0x%02x), BiosVersion(%02d.%02d.%02d.%02d)\n",
2085 ioc->name, desc,
2086 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
2087 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
2088 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
2089 ioc->facts.FWVersion.Word & 0x000000FF,
2090 revision,
Kashyap, Desaic97951e2011-06-14 10:54:56 +05302091 (bios_version & 0xFF000000) >> 24,
2092 (bios_version & 0x00FF0000) >> 16,
2093 (bios_version & 0x0000FF00) >> 8,
2094 bios_version & 0x000000FF);
Eric Moore635374e2009-03-09 01:21:12 -06002095
Kashyap, Desaied79f122009-08-20 13:23:49 +05302096 _base_display_dell_branding(ioc);
Kashyap, Desaifb396be2011-01-04 11:36:37 +05302097 _base_display_intel_branding(ioc);
Kashyap, Desai0a2385c2011-03-15 20:04:26 +05302098 _base_display_hp_branding(ioc);
Kashyap, Desaied79f122009-08-20 13:23:49 +05302099
Eric Moore635374e2009-03-09 01:21:12 -06002100 printk(MPT2SAS_INFO_FMT "Protocol=(", ioc->name);
2101
2102 if (ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR) {
2103 printk("Initiator");
2104 i++;
2105 }
2106
2107 if (ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_TARGET) {
2108 printk("%sTarget", i ? "," : "");
2109 i++;
2110 }
2111
2112 i = 0;
2113 printk("), ");
2114 printk("Capabilities=(");
2115
Kashyap, Desai0bdccdb2011-04-07 12:32:49 +05302116 if (!ioc->hide_ir_msg) {
2117 if (ioc->facts.IOCCapabilities &
2118 MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID) {
2119 printk("Raid");
2120 i++;
2121 }
Eric Moore635374e2009-03-09 01:21:12 -06002122 }
2123
2124 if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR) {
2125 printk("%sTLR", i ? "," : "");
2126 i++;
2127 }
2128
2129 if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_MULTICAST) {
2130 printk("%sMulticast", i ? "," : "");
2131 i++;
2132 }
2133
2134 if (ioc->facts.IOCCapabilities &
2135 MPI2_IOCFACTS_CAPABILITY_BIDIRECTIONAL_TARGET) {
2136 printk("%sBIDI Target", i ? "," : "");
2137 i++;
2138 }
2139
2140 if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_EEDP) {
2141 printk("%sEEDP", i ? "," : "");
2142 i++;
2143 }
2144
2145 if (ioc->facts.IOCCapabilities &
2146 MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER) {
2147 printk("%sSnapshot Buffer", i ? "," : "");
2148 i++;
2149 }
2150
2151 if (ioc->facts.IOCCapabilities &
2152 MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER) {
2153 printk("%sDiag Trace Buffer", i ? "," : "");
2154 i++;
2155 }
2156
2157 if (ioc->facts.IOCCapabilities &
Kashyap, Desai1b01fe32009-09-23 17:28:59 +05302158 MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER) {
2159 printk(KERN_INFO "%sDiag Extended Buffer", i ? "," : "");
2160 i++;
2161 }
2162
2163 if (ioc->facts.IOCCapabilities &
Eric Moore635374e2009-03-09 01:21:12 -06002164 MPI2_IOCFACTS_CAPABILITY_TASK_SET_FULL_HANDLING) {
2165 printk("%sTask Set Full", i ? "," : "");
2166 i++;
2167 }
2168
2169 iounit_pg1_flags = le32_to_cpu(ioc->iounit_pg1.Flags);
2170 if (!(iounit_pg1_flags & MPI2_IOUNITPAGE1_NATIVE_COMMAND_Q_DISABLE)) {
2171 printk("%sNCQ", i ? "," : "");
2172 i++;
2173 }
2174
2175 printk(")\n");
2176}
2177
2178/**
Kashyap, Desai6cb8ef52010-11-13 04:32:18 +05302179 * _base_update_missing_delay - change the missing delay timers
2180 * @ioc: per adapter object
2181 * @device_missing_delay: amount of time till device is reported missing
2182 * @io_missing_delay: interval IO is returned when there is a missing device
2183 *
2184 * Return nothing.
2185 *
2186 * Passed on the command line, this function will modify the device missing
2187 * delay, as well as the io missing delay. This should be called at driver
2188 * load time.
2189 */
2190static void
2191_base_update_missing_delay(struct MPT2SAS_ADAPTER *ioc,
2192 u16 device_missing_delay, u8 io_missing_delay)
2193{
2194 u16 dmd, dmd_new, dmd_orignal;
2195 u8 io_missing_delay_original;
2196 u16 sz;
2197 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
2198 Mpi2ConfigReply_t mpi_reply;
2199 u8 num_phys = 0;
2200 u16 ioc_status;
2201
2202 mpt2sas_config_get_number_hba_phys(ioc, &num_phys);
2203 if (!num_phys)
2204 return;
2205
2206 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (num_phys *
2207 sizeof(Mpi2SasIOUnit1PhyData_t));
2208 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
2209 if (!sas_iounit_pg1) {
2210 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
2211 ioc->name, __FILE__, __LINE__, __func__);
2212 goto out;
2213 }
2214 if ((mpt2sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
2215 sas_iounit_pg1, sz))) {
2216 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
2217 ioc->name, __FILE__, __LINE__, __func__);
2218 goto out;
2219 }
2220 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
2221 MPI2_IOCSTATUS_MASK;
2222 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
2223 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
2224 ioc->name, __FILE__, __LINE__, __func__);
2225 goto out;
2226 }
2227
2228 /* device missing delay */
2229 dmd = sas_iounit_pg1->ReportDeviceMissingDelay;
2230 if (dmd & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
2231 dmd = (dmd & MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
2232 else
2233 dmd = dmd & MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
2234 dmd_orignal = dmd;
2235 if (device_missing_delay > 0x7F) {
2236 dmd = (device_missing_delay > 0x7F0) ? 0x7F0 :
2237 device_missing_delay;
2238 dmd = dmd / 16;
2239 dmd |= MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16;
2240 } else
2241 dmd = device_missing_delay;
2242 sas_iounit_pg1->ReportDeviceMissingDelay = dmd;
2243
2244 /* io missing delay */
2245 io_missing_delay_original = sas_iounit_pg1->IODeviceMissingDelay;
2246 sas_iounit_pg1->IODeviceMissingDelay = io_missing_delay;
2247
2248 if (!mpt2sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1,
2249 sz)) {
2250 if (dmd & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
2251 dmd_new = (dmd &
2252 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
2253 else
2254 dmd_new =
2255 dmd & MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
2256 printk(MPT2SAS_INFO_FMT "device_missing_delay: old(%d), "
2257 "new(%d)\n", ioc->name, dmd_orignal, dmd_new);
2258 printk(MPT2SAS_INFO_FMT "ioc_missing_delay: old(%d), "
2259 "new(%d)\n", ioc->name, io_missing_delay_original,
2260 io_missing_delay);
2261 ioc->device_missing_delay = dmd_new;
2262 ioc->io_missing_delay = io_missing_delay;
2263 }
2264
2265out:
2266 kfree(sas_iounit_pg1);
2267}
2268
2269/**
Eric Moore635374e2009-03-09 01:21:12 -06002270 * _base_static_config_pages - static start of day config pages
2271 * @ioc: per adapter object
2272 *
2273 * Return nothing.
2274 */
2275static void
2276_base_static_config_pages(struct MPT2SAS_ADAPTER *ioc)
2277{
2278 Mpi2ConfigReply_t mpi_reply;
2279 u32 iounit_pg1_flags;
2280
2281 mpt2sas_config_get_manufacturing_pg0(ioc, &mpi_reply, &ioc->manu_pg0);
Kashyap, Desaied79f122009-08-20 13:23:49 +05302282 if (ioc->ir_firmware)
2283 mpt2sas_config_get_manufacturing_pg10(ioc, &mpi_reply,
2284 &ioc->manu_pg10);
Eric Moore635374e2009-03-09 01:21:12 -06002285 mpt2sas_config_get_bios_pg2(ioc, &mpi_reply, &ioc->bios_pg2);
2286 mpt2sas_config_get_bios_pg3(ioc, &mpi_reply, &ioc->bios_pg3);
2287 mpt2sas_config_get_ioc_pg8(ioc, &mpi_reply, &ioc->ioc_pg8);
2288 mpt2sas_config_get_iounit_pg0(ioc, &mpi_reply, &ioc->iounit_pg0);
2289 mpt2sas_config_get_iounit_pg1(ioc, &mpi_reply, &ioc->iounit_pg1);
2290 _base_display_ioc_capabilities(ioc);
2291
2292 /*
2293 * Enable task_set_full handling in iounit_pg1 when the
2294 * facts capabilities indicate that its supported.
2295 */
2296 iounit_pg1_flags = le32_to_cpu(ioc->iounit_pg1.Flags);
2297 if ((ioc->facts.IOCCapabilities &
2298 MPI2_IOCFACTS_CAPABILITY_TASK_SET_FULL_HANDLING))
2299 iounit_pg1_flags &=
2300 ~MPI2_IOUNITPAGE1_DISABLE_TASK_SET_FULL_HANDLING;
2301 else
2302 iounit_pg1_flags |=
2303 MPI2_IOUNITPAGE1_DISABLE_TASK_SET_FULL_HANDLING;
2304 ioc->iounit_pg1.Flags = cpu_to_le32(iounit_pg1_flags);
Kashyap, Desai5b768582009-08-20 13:24:31 +05302305 mpt2sas_config_set_iounit_pg1(ioc, &mpi_reply, &ioc->iounit_pg1);
Kashyap, Desai6cb8ef52010-11-13 04:32:18 +05302306
Eric Moore635374e2009-03-09 01:21:12 -06002307}
2308
2309/**
2310 * _base_release_memory_pools - release memory
2311 * @ioc: per adapter object
2312 *
2313 * Free memory allocated from _base_allocate_memory_pools.
2314 *
2315 * Return nothing.
2316 */
2317static void
2318_base_release_memory_pools(struct MPT2SAS_ADAPTER *ioc)
2319{
Kashyap, Desai35f805b2010-11-13 04:34:06 +05302320 int i;
2321
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05302322 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06002323 __func__));
2324
2325 if (ioc->request) {
2326 pci_free_consistent(ioc->pdev, ioc->request_dma_sz,
2327 ioc->request, ioc->request_dma);
2328 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "request_pool(0x%p)"
2329 ": free\n", ioc->name, ioc->request));
2330 ioc->request = NULL;
2331 }
2332
2333 if (ioc->sense) {
2334 pci_pool_free(ioc->sense_dma_pool, ioc->sense, ioc->sense_dma);
2335 if (ioc->sense_dma_pool)
2336 pci_pool_destroy(ioc->sense_dma_pool);
2337 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "sense_pool(0x%p)"
2338 ": free\n", ioc->name, ioc->sense));
2339 ioc->sense = NULL;
2340 }
2341
2342 if (ioc->reply) {
2343 pci_pool_free(ioc->reply_dma_pool, ioc->reply, ioc->reply_dma);
2344 if (ioc->reply_dma_pool)
2345 pci_pool_destroy(ioc->reply_dma_pool);
2346 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_pool(0x%p)"
2347 ": free\n", ioc->name, ioc->reply));
2348 ioc->reply = NULL;
2349 }
2350
2351 if (ioc->reply_free) {
2352 pci_pool_free(ioc->reply_free_dma_pool, ioc->reply_free,
2353 ioc->reply_free_dma);
2354 if (ioc->reply_free_dma_pool)
2355 pci_pool_destroy(ioc->reply_free_dma_pool);
2356 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_free_pool"
2357 "(0x%p): free\n", ioc->name, ioc->reply_free));
2358 ioc->reply_free = NULL;
2359 }
2360
2361 if (ioc->reply_post_free) {
2362 pci_pool_free(ioc->reply_post_free_dma_pool,
2363 ioc->reply_post_free, ioc->reply_post_free_dma);
2364 if (ioc->reply_post_free_dma_pool)
2365 pci_pool_destroy(ioc->reply_post_free_dma_pool);
2366 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT
2367 "reply_post_free_pool(0x%p): free\n", ioc->name,
2368 ioc->reply_post_free));
2369 ioc->reply_post_free = NULL;
2370 }
2371
2372 if (ioc->config_page) {
2373 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT
2374 "config_page(0x%p): free\n", ioc->name,
2375 ioc->config_page));
2376 pci_free_consistent(ioc->pdev, ioc->config_page_sz,
2377 ioc->config_page, ioc->config_page_dma);
2378 }
2379
Kashyap, Desai66a67932010-04-05 14:21:07 +05302380 if (ioc->scsi_lookup) {
2381 free_pages((ulong)ioc->scsi_lookup, ioc->scsi_lookup_pages);
2382 ioc->scsi_lookup = NULL;
2383 }
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302384 kfree(ioc->hpr_lookup);
2385 kfree(ioc->internal_lookup);
Kashyap, Desai35f805b2010-11-13 04:34:06 +05302386 if (ioc->chain_lookup) {
2387 for (i = 0; i < ioc->chain_depth; i++) {
2388 if (ioc->chain_lookup[i].chain_buffer)
2389 pci_pool_free(ioc->chain_dma_pool,
2390 ioc->chain_lookup[i].chain_buffer,
2391 ioc->chain_lookup[i].chain_buffer_dma);
2392 }
2393 if (ioc->chain_dma_pool)
2394 pci_pool_destroy(ioc->chain_dma_pool);
Kashyap, Desai35f805b2010-11-13 04:34:06 +05302395 free_pages((ulong)ioc->chain_lookup, ioc->chain_pages);
2396 ioc->chain_lookup = NULL;
2397 }
Eric Moore635374e2009-03-09 01:21:12 -06002398}
2399
2400
2401/**
2402 * _base_allocate_memory_pools - allocate start of day memory pools
2403 * @ioc: per adapter object
2404 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2405 *
2406 * Returns 0 success, anything else error
2407 */
2408static int
2409_base_allocate_memory_pools(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
2410{
Kashyap, Desaic97951e2011-06-14 10:54:56 +05302411 struct mpt2sas_facts *facts;
Eric Moore635374e2009-03-09 01:21:12 -06002412 u16 max_sge_elements;
Eric Moore635374e2009-03-09 01:21:12 -06002413 u16 chains_needed_per_io;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05302414 u32 sz, total_sz, reply_post_free_sz;
Eric Moore635374e2009-03-09 01:21:12 -06002415 u32 retry_sz;
2416 u16 max_request_credit;
Kashyap, Desai35f805b2010-11-13 04:34:06 +05302417 int i;
Eric Moore635374e2009-03-09 01:21:12 -06002418
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05302419 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06002420 __func__));
2421
2422 retry_sz = 0;
2423 facts = &ioc->facts;
2424
2425 /* command line tunables for max sgl entries */
2426 if (max_sgl_entries != -1) {
2427 ioc->shost->sg_tablesize = (max_sgl_entries <
2428 MPT2SAS_SG_DEPTH) ? max_sgl_entries :
2429 MPT2SAS_SG_DEPTH;
2430 } else {
2431 ioc->shost->sg_tablesize = MPT2SAS_SG_DEPTH;
2432 }
2433
2434 /* command line tunables for max controller queue depth */
Kashyap, Desai35f805b2010-11-13 04:34:06 +05302435 if (max_queue_depth != -1)
Eric Moore635374e2009-03-09 01:21:12 -06002436 max_request_credit = (max_queue_depth < facts->RequestCredit)
2437 ? max_queue_depth : facts->RequestCredit;
Kashyap, Desai35f805b2010-11-13 04:34:06 +05302438 else
nagalakshmi.nandigama@lsi.comaff132d2011-12-01 07:53:08 +05302439 max_request_credit = min_t(u16, facts->RequestCredit,
2440 MAX_HBA_QUEUE_DEPTH);
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302441
2442 ioc->hba_queue_depth = max_request_credit;
2443 ioc->hi_priority_depth = facts->HighPriorityCredit;
2444 ioc->internal_depth = ioc->hi_priority_depth + 5;
Eric Moore635374e2009-03-09 01:21:12 -06002445
2446 /* request frame size */
2447 ioc->request_sz = facts->IOCRequestFrameSize * 4;
2448
2449 /* reply frame size */
2450 ioc->reply_sz = facts->ReplyFrameSize * 4;
2451
2452 retry_allocation:
2453 total_sz = 0;
2454 /* calculate number of sg elements left over in the 1st frame */
2455 max_sge_elements = ioc->request_sz - ((sizeof(Mpi2SCSIIORequest_t) -
2456 sizeof(Mpi2SGEIOUnion_t)) + ioc->sge_size);
2457 ioc->max_sges_in_main_message = max_sge_elements/ioc->sge_size;
2458
2459 /* now do the same for a chain buffer */
2460 max_sge_elements = ioc->request_sz - ioc->sge_size;
2461 ioc->max_sges_in_chain_message = max_sge_elements/ioc->sge_size;
2462
2463 ioc->chain_offset_value_for_main_message =
2464 ((sizeof(Mpi2SCSIIORequest_t) - sizeof(Mpi2SGEIOUnion_t)) +
2465 (ioc->max_sges_in_chain_message * ioc->sge_size)) / 4;
2466
2467 /*
2468 * MPT2SAS_SG_DEPTH = CONFIG_FUSION_MAX_SGE
2469 */
2470 chains_needed_per_io = ((ioc->shost->sg_tablesize -
2471 ioc->max_sges_in_main_message)/ioc->max_sges_in_chain_message)
2472 + 1;
2473 if (chains_needed_per_io > facts->MaxChainDepth) {
2474 chains_needed_per_io = facts->MaxChainDepth;
2475 ioc->shost->sg_tablesize = min_t(u16,
2476 ioc->max_sges_in_main_message + (ioc->max_sges_in_chain_message
2477 * chains_needed_per_io), ioc->shost->sg_tablesize);
2478 }
2479 ioc->chains_needed_per_io = chains_needed_per_io;
2480
nagalakshmi.nandigama@lsi.comaff132d2011-12-01 07:53:08 +05302481 /* reply free queue sizing - taking into account for 64 FW events */
2482 ioc->reply_free_queue_depth = ioc->hba_queue_depth + 64;
Eric Moore635374e2009-03-09 01:21:12 -06002483
nagalakshmi.nandigama@lsi.comaff132d2011-12-01 07:53:08 +05302484 /* align the reply post queue on the next 16 count boundary */
2485 if (!ioc->reply_free_queue_depth % 16)
2486 ioc->reply_post_queue_depth = ioc->reply_free_queue_depth + 16;
2487 else
2488 ioc->reply_post_queue_depth = ioc->reply_free_queue_depth +
2489 32 - (ioc->reply_free_queue_depth % 16);
2490 if (ioc->reply_post_queue_depth >
2491 facts->MaxReplyDescriptorPostQueueDepth) {
2492 ioc->reply_post_queue_depth = min_t(u16,
2493 (facts->MaxReplyDescriptorPostQueueDepth -
2494 (facts->MaxReplyDescriptorPostQueueDepth % 16)),
2495 (ioc->hba_queue_depth - (ioc->hba_queue_depth % 16)));
2496 ioc->reply_free_queue_depth = ioc->reply_post_queue_depth - 16;
2497 ioc->hba_queue_depth = ioc->reply_free_queue_depth - 64;
Eric Moore635374e2009-03-09 01:21:12 -06002498 }
nagalakshmi.nandigama@lsi.comaff132d2011-12-01 07:53:08 +05302499
Eric Moore635374e2009-03-09 01:21:12 -06002500
Eric Moore635374e2009-03-09 01:21:12 -06002501 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scatter gather: "
2502 "sge_in_main_msg(%d), sge_per_chain(%d), sge_per_io(%d), "
2503 "chains_per_io(%d)\n", ioc->name, ioc->max_sges_in_main_message,
2504 ioc->max_sges_in_chain_message, ioc->shost->sg_tablesize,
2505 ioc->chains_needed_per_io));
2506
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302507 ioc->scsiio_depth = ioc->hba_queue_depth -
2508 ioc->hi_priority_depth - ioc->internal_depth;
2509
2510 /* set the scsi host can_queue depth
2511 * with some internal commands that could be outstanding
2512 */
2513 ioc->shost->can_queue = ioc->scsiio_depth - (2);
2514 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scsi host: "
2515 "can_queue depth (%d)\n", ioc->name, ioc->shost->can_queue));
2516
Eric Moore635374e2009-03-09 01:21:12 -06002517 /* contiguous pool for request and chains, 16 byte align, one extra "
2518 * "frame for smid=0
2519 */
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302520 ioc->chain_depth = ioc->chains_needed_per_io * ioc->scsiio_depth;
Kashyap, Desai35f805b2010-11-13 04:34:06 +05302521 sz = ((ioc->scsiio_depth + 1) * ioc->request_sz);
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302522
2523 /* hi-priority queue */
2524 sz += (ioc->hi_priority_depth * ioc->request_sz);
2525
2526 /* internal queue */
2527 sz += (ioc->internal_depth * ioc->request_sz);
Eric Moore635374e2009-03-09 01:21:12 -06002528
2529 ioc->request_dma_sz = sz;
2530 ioc->request = pci_alloc_consistent(ioc->pdev, sz, &ioc->request_dma);
2531 if (!ioc->request) {
2532 printk(MPT2SAS_ERR_FMT "request pool: pci_alloc_consistent "
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302533 "failed: hba_depth(%d), chains_per_io(%d), frame_sz(%d), "
2534 "total(%d kB)\n", ioc->name, ioc->hba_queue_depth,
Eric Moore635374e2009-03-09 01:21:12 -06002535 ioc->chains_needed_per_io, ioc->request_sz, sz/1024);
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302536 if (ioc->scsiio_depth < MPT2SAS_SAS_QUEUE_DEPTH)
Eric Moore635374e2009-03-09 01:21:12 -06002537 goto out;
2538 retry_sz += 64;
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302539 ioc->hba_queue_depth = max_request_credit - retry_sz;
Eric Moore635374e2009-03-09 01:21:12 -06002540 goto retry_allocation;
2541 }
2542
2543 if (retry_sz)
2544 printk(MPT2SAS_ERR_FMT "request pool: pci_alloc_consistent "
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302545 "succeed: hba_depth(%d), chains_per_io(%d), frame_sz(%d), "
2546 "total(%d kb)\n", ioc->name, ioc->hba_queue_depth,
Eric Moore635374e2009-03-09 01:21:12 -06002547 ioc->chains_needed_per_io, ioc->request_sz, sz/1024);
2548
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302549
2550 /* hi-priority queue */
2551 ioc->hi_priority = ioc->request + ((ioc->scsiio_depth + 1) *
Eric Moore635374e2009-03-09 01:21:12 -06002552 ioc->request_sz);
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302553 ioc->hi_priority_dma = ioc->request_dma + ((ioc->scsiio_depth + 1) *
Eric Moore635374e2009-03-09 01:21:12 -06002554 ioc->request_sz);
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302555
2556 /* internal queue */
2557 ioc->internal = ioc->hi_priority + (ioc->hi_priority_depth *
2558 ioc->request_sz);
2559 ioc->internal_dma = ioc->hi_priority_dma + (ioc->hi_priority_depth *
2560 ioc->request_sz);
2561
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302562
Eric Moore635374e2009-03-09 01:21:12 -06002563 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "request pool(0x%p): "
2564 "depth(%d), frame_size(%d), pool_size(%d kB)\n", ioc->name,
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302565 ioc->request, ioc->hba_queue_depth, ioc->request_sz,
2566 (ioc->hba_queue_depth * ioc->request_sz)/1024));
Eric Moore635374e2009-03-09 01:21:12 -06002567 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "request pool: dma(0x%llx)\n",
2568 ioc->name, (unsigned long long) ioc->request_dma));
2569 total_sz += sz;
2570
Kashyap, Desaid5bd3492011-01-04 11:39:20 +05302571 sz = ioc->scsiio_depth * sizeof(struct scsiio_tracker);
Kashyap, Desai89009fb2010-03-17 16:22:52 +05302572 ioc->scsi_lookup_pages = get_order(sz);
Kashyap, Desaid5bd3492011-01-04 11:39:20 +05302573 ioc->scsi_lookup = (struct scsiio_tracker *)__get_free_pages(
Kashyap, Desai89009fb2010-03-17 16:22:52 +05302574 GFP_KERNEL, ioc->scsi_lookup_pages);
Eric Moore635374e2009-03-09 01:21:12 -06002575 if (!ioc->scsi_lookup) {
Kashyap, Desai89009fb2010-03-17 16:22:52 +05302576 printk(MPT2SAS_ERR_FMT "scsi_lookup: get_free_pages failed, "
2577 "sz(%d)\n", ioc->name, (int)sz);
Eric Moore635374e2009-03-09 01:21:12 -06002578 goto out;
2579 }
2580
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302581 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scsiio(0x%p): "
2582 "depth(%d)\n", ioc->name, ioc->request,
2583 ioc->scsiio_depth));
2584
nagalakshmi.nandigama@lsi.comaff132d2011-12-01 07:53:08 +05302585 ioc->chain_depth = min_t(u32, ioc->chain_depth, MAX_CHAIN_DEPTH);
2586 sz = ioc->chain_depth * sizeof(struct chain_tracker);
2587 ioc->chain_pages = get_order(sz);
2588
2589 ioc->chain_lookup = (struct chain_tracker *)__get_free_pages(
2590 GFP_KERNEL, ioc->chain_pages);
Kashyap, Desai35f805b2010-11-13 04:34:06 +05302591 ioc->chain_dma_pool = pci_pool_create("chain pool", ioc->pdev,
2592 ioc->request_sz, 16, 0);
2593 if (!ioc->chain_dma_pool) {
2594 printk(MPT2SAS_ERR_FMT "chain_dma_pool: pci_pool_create "
2595 "failed\n", ioc->name);
2596 goto out;
2597 }
2598 for (i = 0; i < ioc->chain_depth; i++) {
2599 ioc->chain_lookup[i].chain_buffer = pci_pool_alloc(
2600 ioc->chain_dma_pool , GFP_KERNEL,
2601 &ioc->chain_lookup[i].chain_buffer_dma);
2602 if (!ioc->chain_lookup[i].chain_buffer) {
2603 ioc->chain_depth = i;
2604 goto chain_done;
2605 }
2606 total_sz += ioc->request_sz;
2607 }
2608chain_done:
2609 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "chain pool depth"
2610 "(%d), frame_size(%d), pool_size(%d kB)\n", ioc->name,
2611 ioc->chain_depth, ioc->request_sz, ((ioc->chain_depth *
2612 ioc->request_sz))/1024));
2613
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302614 /* initialize hi-priority queue smid's */
2615 ioc->hpr_lookup = kcalloc(ioc->hi_priority_depth,
2616 sizeof(struct request_tracker), GFP_KERNEL);
2617 if (!ioc->hpr_lookup) {
2618 printk(MPT2SAS_ERR_FMT "hpr_lookup: kcalloc failed\n",
2619 ioc->name);
2620 goto out;
2621 }
2622 ioc->hi_priority_smid = ioc->scsiio_depth + 1;
2623 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "hi_priority(0x%p): "
2624 "depth(%d), start smid(%d)\n", ioc->name, ioc->hi_priority,
2625 ioc->hi_priority_depth, ioc->hi_priority_smid));
2626
2627 /* initialize internal queue smid's */
2628 ioc->internal_lookup = kcalloc(ioc->internal_depth,
2629 sizeof(struct request_tracker), GFP_KERNEL);
2630 if (!ioc->internal_lookup) {
2631 printk(MPT2SAS_ERR_FMT "internal_lookup: kcalloc failed\n",
2632 ioc->name);
2633 goto out;
2634 }
2635 ioc->internal_smid = ioc->hi_priority_smid + ioc->hi_priority_depth;
2636 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "internal(0x%p): "
2637 "depth(%d), start smid(%d)\n", ioc->name, ioc->internal,
2638 ioc->internal_depth, ioc->internal_smid));
Eric Moore635374e2009-03-09 01:21:12 -06002639
2640 /* sense buffers, 4 byte align */
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302641 sz = ioc->scsiio_depth * SCSI_SENSE_BUFFERSIZE;
Eric Moore635374e2009-03-09 01:21:12 -06002642 ioc->sense_dma_pool = pci_pool_create("sense pool", ioc->pdev, sz, 4,
2643 0);
2644 if (!ioc->sense_dma_pool) {
2645 printk(MPT2SAS_ERR_FMT "sense pool: pci_pool_create failed\n",
2646 ioc->name);
2647 goto out;
2648 }
2649 ioc->sense = pci_pool_alloc(ioc->sense_dma_pool , GFP_KERNEL,
2650 &ioc->sense_dma);
2651 if (!ioc->sense) {
2652 printk(MPT2SAS_ERR_FMT "sense pool: pci_pool_alloc failed\n",
2653 ioc->name);
2654 goto out;
2655 }
2656 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
2657 "sense pool(0x%p): depth(%d), element_size(%d), pool_size"
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302658 "(%d kB)\n", ioc->name, ioc->sense, ioc->scsiio_depth,
Eric Moore635374e2009-03-09 01:21:12 -06002659 SCSI_SENSE_BUFFERSIZE, sz/1024));
2660 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "sense_dma(0x%llx)\n",
2661 ioc->name, (unsigned long long)ioc->sense_dma));
2662 total_sz += sz;
2663
2664 /* reply pool, 4 byte align */
2665 sz = ioc->reply_free_queue_depth * ioc->reply_sz;
2666 ioc->reply_dma_pool = pci_pool_create("reply pool", ioc->pdev, sz, 4,
2667 0);
2668 if (!ioc->reply_dma_pool) {
2669 printk(MPT2SAS_ERR_FMT "reply pool: pci_pool_create failed\n",
2670 ioc->name);
2671 goto out;
2672 }
2673 ioc->reply = pci_pool_alloc(ioc->reply_dma_pool , GFP_KERNEL,
2674 &ioc->reply_dma);
2675 if (!ioc->reply) {
2676 printk(MPT2SAS_ERR_FMT "reply pool: pci_pool_alloc failed\n",
2677 ioc->name);
2678 goto out;
2679 }
Kashyap, Desaidd3741d2010-11-13 04:31:14 +05302680 ioc->reply_dma_min_address = (u32)(ioc->reply_dma);
2681 ioc->reply_dma_max_address = (u32)(ioc->reply_dma) + sz;
Eric Moore635374e2009-03-09 01:21:12 -06002682 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply pool(0x%p): depth"
2683 "(%d), frame_size(%d), pool_size(%d kB)\n", ioc->name, ioc->reply,
2684 ioc->reply_free_queue_depth, ioc->reply_sz, sz/1024));
2685 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_dma(0x%llx)\n",
2686 ioc->name, (unsigned long long)ioc->reply_dma));
2687 total_sz += sz;
2688
2689 /* reply free queue, 16 byte align */
2690 sz = ioc->reply_free_queue_depth * 4;
2691 ioc->reply_free_dma_pool = pci_pool_create("reply_free pool",
2692 ioc->pdev, sz, 16, 0);
2693 if (!ioc->reply_free_dma_pool) {
2694 printk(MPT2SAS_ERR_FMT "reply_free pool: pci_pool_create "
2695 "failed\n", ioc->name);
2696 goto out;
2697 }
2698 ioc->reply_free = pci_pool_alloc(ioc->reply_free_dma_pool , GFP_KERNEL,
2699 &ioc->reply_free_dma);
2700 if (!ioc->reply_free) {
2701 printk(MPT2SAS_ERR_FMT "reply_free pool: pci_pool_alloc "
2702 "failed\n", ioc->name);
2703 goto out;
2704 }
2705 memset(ioc->reply_free, 0, sz);
2706 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_free pool(0x%p): "
2707 "depth(%d), element_size(%d), pool_size(%d kB)\n", ioc->name,
2708 ioc->reply_free, ioc->reply_free_queue_depth, 4, sz/1024));
2709 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_free_dma"
2710 "(0x%llx)\n", ioc->name, (unsigned long long)ioc->reply_free_dma));
2711 total_sz += sz;
2712
2713 /* reply post queue, 16 byte align */
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05302714 reply_post_free_sz = ioc->reply_post_queue_depth *
2715 sizeof(Mpi2DefaultReplyDescriptor_t);
2716 if (_base_is_controller_msix_enabled(ioc))
2717 sz = reply_post_free_sz * ioc->reply_queue_count;
2718 else
2719 sz = reply_post_free_sz;
Eric Moore635374e2009-03-09 01:21:12 -06002720 ioc->reply_post_free_dma_pool = pci_pool_create("reply_post_free pool",
2721 ioc->pdev, sz, 16, 0);
2722 if (!ioc->reply_post_free_dma_pool) {
2723 printk(MPT2SAS_ERR_FMT "reply_post_free pool: pci_pool_create "
2724 "failed\n", ioc->name);
2725 goto out;
2726 }
2727 ioc->reply_post_free = pci_pool_alloc(ioc->reply_post_free_dma_pool ,
2728 GFP_KERNEL, &ioc->reply_post_free_dma);
2729 if (!ioc->reply_post_free) {
2730 printk(MPT2SAS_ERR_FMT "reply_post_free pool: pci_pool_alloc "
2731 "failed\n", ioc->name);
2732 goto out;
2733 }
2734 memset(ioc->reply_post_free, 0, sz);
2735 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply post free pool"
2736 "(0x%p): depth(%d), element_size(%d), pool_size(%d kB)\n",
2737 ioc->name, ioc->reply_post_free, ioc->reply_post_queue_depth, 8,
2738 sz/1024));
2739 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "reply_post_free_dma = "
2740 "(0x%llx)\n", ioc->name, (unsigned long long)
2741 ioc->reply_post_free_dma));
2742 total_sz += sz;
2743
2744 ioc->config_page_sz = 512;
2745 ioc->config_page = pci_alloc_consistent(ioc->pdev,
2746 ioc->config_page_sz, &ioc->config_page_dma);
2747 if (!ioc->config_page) {
2748 printk(MPT2SAS_ERR_FMT "config page: pci_pool_alloc "
2749 "failed\n", ioc->name);
2750 goto out;
2751 }
2752 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "config page(0x%p): size"
2753 "(%d)\n", ioc->name, ioc->config_page, ioc->config_page_sz));
2754 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "config_page_dma"
2755 "(0x%llx)\n", ioc->name, (unsigned long long)ioc->config_page_dma));
2756 total_sz += ioc->config_page_sz;
2757
2758 printk(MPT2SAS_INFO_FMT "Allocated physical memory: size(%d kB)\n",
2759 ioc->name, total_sz/1024);
2760 printk(MPT2SAS_INFO_FMT "Current Controller Queue Depth(%d), "
2761 "Max Controller Queue Depth(%d)\n",
2762 ioc->name, ioc->shost->can_queue, facts->RequestCredit);
2763 printk(MPT2SAS_INFO_FMT "Scatter Gather Elements per IO(%d)\n",
2764 ioc->name, ioc->shost->sg_tablesize);
2765 return 0;
2766
2767 out:
Eric Moore635374e2009-03-09 01:21:12 -06002768 return -ENOMEM;
2769}
2770
2771
2772/**
2773 * mpt2sas_base_get_iocstate - Get the current state of a MPT adapter.
2774 * @ioc: Pointer to MPT_ADAPTER structure
2775 * @cooked: Request raw or cooked IOC state
2776 *
2777 * Returns all IOC Doorbell register bits if cooked==0, else just the
2778 * Doorbell bits in MPI_IOC_STATE_MASK.
2779 */
2780u32
2781mpt2sas_base_get_iocstate(struct MPT2SAS_ADAPTER *ioc, int cooked)
2782{
2783 u32 s, sc;
2784
2785 s = readl(&ioc->chip->Doorbell);
2786 sc = s & MPI2_IOC_STATE_MASK;
2787 return cooked ? sc : s;
2788}
2789
2790/**
2791 * _base_wait_on_iocstate - waiting on a particular ioc state
2792 * @ioc_state: controller state { READY, OPERATIONAL, or RESET }
2793 * @timeout: timeout in second
2794 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2795 *
2796 * Returns 0 for success, non-zero for failure.
2797 */
2798static int
2799_base_wait_on_iocstate(struct MPT2SAS_ADAPTER *ioc, u32 ioc_state, int timeout,
2800 int sleep_flag)
2801{
2802 u32 count, cntdn;
2803 u32 current_state;
2804
2805 count = 0;
2806 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
2807 do {
2808 current_state = mpt2sas_base_get_iocstate(ioc, 1);
2809 if (current_state == ioc_state)
2810 return 0;
2811 if (count && current_state == MPI2_IOC_STATE_FAULT)
2812 break;
2813 if (sleep_flag == CAN_SLEEP)
2814 msleep(1);
2815 else
2816 udelay(500);
2817 count++;
2818 } while (--cntdn);
2819
2820 return current_state;
2821}
2822
2823/**
2824 * _base_wait_for_doorbell_int - waiting for controller interrupt(generated by
2825 * a write to the doorbell)
2826 * @ioc: per adapter object
2827 * @timeout: timeout in second
2828 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2829 *
2830 * Returns 0 for success, non-zero for failure.
2831 *
2832 * Notes: MPI2_HIS_IOC2SYS_DB_STATUS - set to one when IOC writes to doorbell.
2833 */
2834static int
2835_base_wait_for_doorbell_int(struct MPT2SAS_ADAPTER *ioc, int timeout,
2836 int sleep_flag)
2837{
2838 u32 cntdn, count;
2839 u32 int_status;
2840
2841 count = 0;
2842 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
2843 do {
2844 int_status = readl(&ioc->chip->HostInterruptStatus);
2845 if (int_status & MPI2_HIS_IOC2SYS_DB_STATUS) {
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05302846 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
Lucas De Marchi25985ed2011-03-30 22:57:33 -03002847 "successful count(%d), timeout(%d)\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06002848 __func__, count, timeout));
2849 return 0;
2850 }
2851 if (sleep_flag == CAN_SLEEP)
2852 msleep(1);
2853 else
2854 udelay(500);
2855 count++;
2856 } while (--cntdn);
2857
2858 printk(MPT2SAS_ERR_FMT "%s: failed due to timeout count(%d), "
2859 "int_status(%x)!\n", ioc->name, __func__, count, int_status);
2860 return -EFAULT;
2861}
2862
2863/**
2864 * _base_wait_for_doorbell_ack - waiting for controller to read the doorbell.
2865 * @ioc: per adapter object
2866 * @timeout: timeout in second
2867 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2868 *
2869 * Returns 0 for success, non-zero for failure.
2870 *
2871 * Notes: MPI2_HIS_SYS2IOC_DB_STATUS - set to one when host writes to
2872 * doorbell.
2873 */
2874static int
2875_base_wait_for_doorbell_ack(struct MPT2SAS_ADAPTER *ioc, int timeout,
2876 int sleep_flag)
2877{
2878 u32 cntdn, count;
2879 u32 int_status;
2880 u32 doorbell;
2881
2882 count = 0;
2883 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
2884 do {
2885 int_status = readl(&ioc->chip->HostInterruptStatus);
2886 if (!(int_status & MPI2_HIS_SYS2IOC_DB_STATUS)) {
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05302887 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
Lucas De Marchi25985ed2011-03-30 22:57:33 -03002888 "successful count(%d), timeout(%d)\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06002889 __func__, count, timeout));
2890 return 0;
2891 } else if (int_status & MPI2_HIS_IOC2SYS_DB_STATUS) {
2892 doorbell = readl(&ioc->chip->Doorbell);
2893 if ((doorbell & MPI2_IOC_STATE_MASK) ==
2894 MPI2_IOC_STATE_FAULT) {
2895 mpt2sas_base_fault_info(ioc , doorbell);
2896 return -EFAULT;
2897 }
2898 } else if (int_status == 0xFFFFFFFF)
2899 goto out;
2900
2901 if (sleep_flag == CAN_SLEEP)
2902 msleep(1);
2903 else
2904 udelay(500);
2905 count++;
2906 } while (--cntdn);
2907
2908 out:
2909 printk(MPT2SAS_ERR_FMT "%s: failed due to timeout count(%d), "
2910 "int_status(%x)!\n", ioc->name, __func__, count, int_status);
2911 return -EFAULT;
2912}
2913
2914/**
2915 * _base_wait_for_doorbell_not_used - waiting for doorbell to not be in use
2916 * @ioc: per adapter object
2917 * @timeout: timeout in second
2918 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2919 *
2920 * Returns 0 for success, non-zero for failure.
2921 *
2922 */
2923static int
2924_base_wait_for_doorbell_not_used(struct MPT2SAS_ADAPTER *ioc, int timeout,
2925 int sleep_flag)
2926{
2927 u32 cntdn, count;
2928 u32 doorbell_reg;
2929
2930 count = 0;
2931 cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
2932 do {
2933 doorbell_reg = readl(&ioc->chip->Doorbell);
2934 if (!(doorbell_reg & MPI2_DOORBELL_USED)) {
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05302935 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
Lucas De Marchi25985ed2011-03-30 22:57:33 -03002936 "successful count(%d), timeout(%d)\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06002937 __func__, count, timeout));
2938 return 0;
2939 }
2940 if (sleep_flag == CAN_SLEEP)
2941 msleep(1);
2942 else
2943 udelay(500);
2944 count++;
2945 } while (--cntdn);
2946
2947 printk(MPT2SAS_ERR_FMT "%s: failed due to timeout count(%d), "
2948 "doorbell_reg(%x)!\n", ioc->name, __func__, count, doorbell_reg);
2949 return -EFAULT;
2950}
2951
2952/**
2953 * _base_send_ioc_reset - send doorbell reset
2954 * @ioc: per adapter object
2955 * @reset_type: currently only supports: MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET
2956 * @timeout: timeout in second
2957 * @sleep_flag: CAN_SLEEP or NO_SLEEP
2958 *
2959 * Returns 0 for success, non-zero for failure.
2960 */
2961static int
2962_base_send_ioc_reset(struct MPT2SAS_ADAPTER *ioc, u8 reset_type, int timeout,
2963 int sleep_flag)
2964{
2965 u32 ioc_state;
2966 int r = 0;
2967
2968 if (reset_type != MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET) {
2969 printk(MPT2SAS_ERR_FMT "%s: unknown reset_type\n",
2970 ioc->name, __func__);
2971 return -EFAULT;
2972 }
2973
2974 if (!(ioc->facts.IOCCapabilities &
2975 MPI2_IOCFACTS_CAPABILITY_EVENT_REPLAY))
2976 return -EFAULT;
2977
2978 printk(MPT2SAS_INFO_FMT "sending message unit reset !!\n", ioc->name);
2979
2980 writel(reset_type << MPI2_DOORBELL_FUNCTION_SHIFT,
2981 &ioc->chip->Doorbell);
2982 if ((_base_wait_for_doorbell_ack(ioc, 15, sleep_flag))) {
2983 r = -EFAULT;
2984 goto out;
2985 }
2986 ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY,
2987 timeout, sleep_flag);
2988 if (ioc_state) {
2989 printk(MPT2SAS_ERR_FMT "%s: failed going to ready state "
2990 " (ioc_state=0x%x)\n", ioc->name, __func__, ioc_state);
2991 r = -EFAULT;
2992 goto out;
2993 }
2994 out:
2995 printk(MPT2SAS_INFO_FMT "message unit reset: %s\n",
2996 ioc->name, ((r == 0) ? "SUCCESS" : "FAILED"));
2997 return r;
2998}
2999
3000/**
3001 * _base_handshake_req_reply_wait - send request thru doorbell interface
3002 * @ioc: per adapter object
3003 * @request_bytes: request length
3004 * @request: pointer having request payload
3005 * @reply_bytes: reply length
3006 * @reply: pointer to reply payload
3007 * @timeout: timeout in second
3008 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3009 *
3010 * Returns 0 for success, non-zero for failure.
3011 */
3012static int
3013_base_handshake_req_reply_wait(struct MPT2SAS_ADAPTER *ioc, int request_bytes,
3014 u32 *request, int reply_bytes, u16 *reply, int timeout, int sleep_flag)
3015{
3016 MPI2DefaultReply_t *default_reply = (MPI2DefaultReply_t *)reply;
3017 int i;
3018 u8 failed;
3019 u16 dummy;
Kashyap, Desaic97951e2011-06-14 10:54:56 +05303020 __le32 *mfp;
Eric Moore635374e2009-03-09 01:21:12 -06003021
3022 /* make sure doorbell is not in use */
3023 if ((readl(&ioc->chip->Doorbell) & MPI2_DOORBELL_USED)) {
3024 printk(MPT2SAS_ERR_FMT "doorbell is in use "
3025 " (line=%d)\n", ioc->name, __LINE__);
3026 return -EFAULT;
3027 }
3028
3029 /* clear pending doorbell interrupts from previous state changes */
3030 if (readl(&ioc->chip->HostInterruptStatus) &
3031 MPI2_HIS_IOC2SYS_DB_STATUS)
3032 writel(0, &ioc->chip->HostInterruptStatus);
3033
3034 /* send message to ioc */
3035 writel(((MPI2_FUNCTION_HANDSHAKE<<MPI2_DOORBELL_FUNCTION_SHIFT) |
3036 ((request_bytes/4)<<MPI2_DOORBELL_ADD_DWORDS_SHIFT)),
3037 &ioc->chip->Doorbell);
3038
Kashyap, Desai29786e12009-09-14 11:06:21 +05303039 if ((_base_wait_for_doorbell_int(ioc, 5, NO_SLEEP))) {
Eric Moore635374e2009-03-09 01:21:12 -06003040 printk(MPT2SAS_ERR_FMT "doorbell handshake "
3041 "int failed (line=%d)\n", ioc->name, __LINE__);
3042 return -EFAULT;
3043 }
3044 writel(0, &ioc->chip->HostInterruptStatus);
3045
3046 if ((_base_wait_for_doorbell_ack(ioc, 5, sleep_flag))) {
3047 printk(MPT2SAS_ERR_FMT "doorbell handshake "
3048 "ack failed (line=%d)\n", ioc->name, __LINE__);
3049 return -EFAULT;
3050 }
3051
3052 /* send message 32-bits at a time */
3053 for (i = 0, failed = 0; i < request_bytes/4 && !failed; i++) {
3054 writel(cpu_to_le32(request[i]), &ioc->chip->Doorbell);
3055 if ((_base_wait_for_doorbell_ack(ioc, 5, sleep_flag)))
3056 failed = 1;
3057 }
3058
3059 if (failed) {
3060 printk(MPT2SAS_ERR_FMT "doorbell handshake "
3061 "sending request failed (line=%d)\n", ioc->name, __LINE__);
3062 return -EFAULT;
3063 }
3064
3065 /* now wait for the reply */
3066 if ((_base_wait_for_doorbell_int(ioc, timeout, sleep_flag))) {
3067 printk(MPT2SAS_ERR_FMT "doorbell handshake "
3068 "int failed (line=%d)\n", ioc->name, __LINE__);
3069 return -EFAULT;
3070 }
3071
3072 /* read the first two 16-bits, it gives the total length of the reply */
3073 reply[0] = le16_to_cpu(readl(&ioc->chip->Doorbell)
3074 & MPI2_DOORBELL_DATA_MASK);
3075 writel(0, &ioc->chip->HostInterruptStatus);
3076 if ((_base_wait_for_doorbell_int(ioc, 5, sleep_flag))) {
3077 printk(MPT2SAS_ERR_FMT "doorbell handshake "
3078 "int failed (line=%d)\n", ioc->name, __LINE__);
3079 return -EFAULT;
3080 }
3081 reply[1] = le16_to_cpu(readl(&ioc->chip->Doorbell)
3082 & MPI2_DOORBELL_DATA_MASK);
3083 writel(0, &ioc->chip->HostInterruptStatus);
3084
3085 for (i = 2; i < default_reply->MsgLength * 2; i++) {
3086 if ((_base_wait_for_doorbell_int(ioc, 5, sleep_flag))) {
3087 printk(MPT2SAS_ERR_FMT "doorbell "
3088 "handshake int failed (line=%d)\n", ioc->name,
3089 __LINE__);
3090 return -EFAULT;
3091 }
3092 if (i >= reply_bytes/2) /* overflow case */
3093 dummy = readl(&ioc->chip->Doorbell);
3094 else
3095 reply[i] = le16_to_cpu(readl(&ioc->chip->Doorbell)
3096 & MPI2_DOORBELL_DATA_MASK);
3097 writel(0, &ioc->chip->HostInterruptStatus);
3098 }
3099
3100 _base_wait_for_doorbell_int(ioc, 5, sleep_flag);
3101 if (_base_wait_for_doorbell_not_used(ioc, 5, sleep_flag) != 0) {
3102 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "doorbell is in use "
3103 " (line=%d)\n", ioc->name, __LINE__));
3104 }
3105 writel(0, &ioc->chip->HostInterruptStatus);
3106
3107 if (ioc->logging_level & MPT_DEBUG_INIT) {
Kashyap, Desaic97951e2011-06-14 10:54:56 +05303108 mfp = (__le32 *)reply;
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303109 printk(KERN_INFO "\toffset:data\n");
Eric Moore635374e2009-03-09 01:21:12 -06003110 for (i = 0; i < reply_bytes/4; i++)
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303111 printk(KERN_INFO "\t[0x%02x]:%08x\n", i*4,
Eric Moore635374e2009-03-09 01:21:12 -06003112 le32_to_cpu(mfp[i]));
3113 }
3114 return 0;
3115}
3116
3117/**
3118 * mpt2sas_base_sas_iounit_control - send sas iounit control to FW
3119 * @ioc: per adapter object
3120 * @mpi_reply: the reply payload from FW
3121 * @mpi_request: the request payload sent to FW
3122 *
3123 * The SAS IO Unit Control Request message allows the host to perform low-level
3124 * operations, such as resets on the PHYs of the IO Unit, also allows the host
3125 * to obtain the IOC assigned device handles for a device if it has other
3126 * identifying information about the device, in addition allows the host to
3127 * remove IOC resources associated with the device.
3128 *
3129 * Returns 0 for success, non-zero for failure.
3130 */
3131int
3132mpt2sas_base_sas_iounit_control(struct MPT2SAS_ADAPTER *ioc,
3133 Mpi2SasIoUnitControlReply_t *mpi_reply,
3134 Mpi2SasIoUnitControlRequest_t *mpi_request)
3135{
3136 u16 smid;
3137 u32 ioc_state;
3138 unsigned long timeleft;
3139 u8 issue_reset;
3140 int rc;
3141 void *request;
3142 u16 wait_state_count;
3143
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303144 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06003145 __func__));
3146
3147 mutex_lock(&ioc->base_cmds.mutex);
3148
3149 if (ioc->base_cmds.status != MPT2_CMD_NOT_USED) {
3150 printk(MPT2SAS_ERR_FMT "%s: base_cmd in use\n",
3151 ioc->name, __func__);
3152 rc = -EAGAIN;
3153 goto out;
3154 }
3155
3156 wait_state_count = 0;
3157 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
3158 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
3159 if (wait_state_count++ == 10) {
3160 printk(MPT2SAS_ERR_FMT
3161 "%s: failed due to ioc not operational\n",
3162 ioc->name, __func__);
3163 rc = -EFAULT;
3164 goto out;
3165 }
3166 ssleep(1);
3167 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
3168 printk(MPT2SAS_INFO_FMT "%s: waiting for "
3169 "operational state(count=%d)\n", ioc->name,
3170 __func__, wait_state_count);
3171 }
3172
3173 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx);
3174 if (!smid) {
3175 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
3176 ioc->name, __func__);
3177 rc = -EAGAIN;
3178 goto out;
3179 }
3180
3181 rc = 0;
3182 ioc->base_cmds.status = MPT2_CMD_PENDING;
3183 request = mpt2sas_base_get_msg_frame(ioc, smid);
3184 ioc->base_cmds.smid = smid;
3185 memcpy(request, mpi_request, sizeof(Mpi2SasIoUnitControlRequest_t));
3186 if (mpi_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET ||
3187 mpi_request->Operation == MPI2_SAS_OP_PHY_LINK_RESET)
3188 ioc->ioc_link_reset_in_progress = 1;
Kashyap, Desaibcfb6e62009-09-14 11:05:24 +05303189 init_completion(&ioc->base_cmds.done);
nagalakshmi.nandigama@lsi.comf01690d2011-12-01 07:43:58 +05303190 mpt2sas_base_put_smid_default(ioc, smid);
Eric Moore635374e2009-03-09 01:21:12 -06003191 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done,
3192 msecs_to_jiffies(10000));
3193 if ((mpi_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET ||
3194 mpi_request->Operation == MPI2_SAS_OP_PHY_LINK_RESET) &&
3195 ioc->ioc_link_reset_in_progress)
3196 ioc->ioc_link_reset_in_progress = 0;
3197 if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) {
3198 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
3199 ioc->name, __func__);
3200 _debug_dump_mf(mpi_request,
3201 sizeof(Mpi2SasIoUnitControlRequest_t)/4);
3202 if (!(ioc->base_cmds.status & MPT2_CMD_RESET))
3203 issue_reset = 1;
3204 goto issue_host_reset;
3205 }
3206 if (ioc->base_cmds.status & MPT2_CMD_REPLY_VALID)
3207 memcpy(mpi_reply, ioc->base_cmds.reply,
3208 sizeof(Mpi2SasIoUnitControlReply_t));
3209 else
3210 memset(mpi_reply, 0, sizeof(Mpi2SasIoUnitControlReply_t));
3211 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
3212 goto out;
3213
3214 issue_host_reset:
3215 if (issue_reset)
3216 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
3217 FORCE_BIG_HAMMER);
3218 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
3219 rc = -EFAULT;
3220 out:
3221 mutex_unlock(&ioc->base_cmds.mutex);
3222 return rc;
3223}
3224
3225
3226/**
3227 * mpt2sas_base_scsi_enclosure_processor - sending request to sep device
3228 * @ioc: per adapter object
3229 * @mpi_reply: the reply payload from FW
3230 * @mpi_request: the request payload sent to FW
3231 *
3232 * The SCSI Enclosure Processor request message causes the IOC to
3233 * communicate with SES devices to control LED status signals.
3234 *
3235 * Returns 0 for success, non-zero for failure.
3236 */
3237int
3238mpt2sas_base_scsi_enclosure_processor(struct MPT2SAS_ADAPTER *ioc,
3239 Mpi2SepReply_t *mpi_reply, Mpi2SepRequest_t *mpi_request)
3240{
3241 u16 smid;
3242 u32 ioc_state;
3243 unsigned long timeleft;
3244 u8 issue_reset;
3245 int rc;
3246 void *request;
3247 u16 wait_state_count;
3248
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303249 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06003250 __func__));
3251
3252 mutex_lock(&ioc->base_cmds.mutex);
3253
3254 if (ioc->base_cmds.status != MPT2_CMD_NOT_USED) {
3255 printk(MPT2SAS_ERR_FMT "%s: base_cmd in use\n",
3256 ioc->name, __func__);
3257 rc = -EAGAIN;
3258 goto out;
3259 }
3260
3261 wait_state_count = 0;
3262 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
3263 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
3264 if (wait_state_count++ == 10) {
3265 printk(MPT2SAS_ERR_FMT
3266 "%s: failed due to ioc not operational\n",
3267 ioc->name, __func__);
3268 rc = -EFAULT;
3269 goto out;
3270 }
3271 ssleep(1);
3272 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
3273 printk(MPT2SAS_INFO_FMT "%s: waiting for "
3274 "operational state(count=%d)\n", ioc->name,
3275 __func__, wait_state_count);
3276 }
3277
3278 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx);
3279 if (!smid) {
3280 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
3281 ioc->name, __func__);
3282 rc = -EAGAIN;
3283 goto out;
3284 }
3285
3286 rc = 0;
3287 ioc->base_cmds.status = MPT2_CMD_PENDING;
3288 request = mpt2sas_base_get_msg_frame(ioc, smid);
3289 ioc->base_cmds.smid = smid;
3290 memcpy(request, mpi_request, sizeof(Mpi2SepReply_t));
Kashyap, Desaibcfb6e62009-09-14 11:05:24 +05303291 init_completion(&ioc->base_cmds.done);
nagalakshmi.nandigama@lsi.comf01690d2011-12-01 07:43:58 +05303292 mpt2sas_base_put_smid_default(ioc, smid);
Eric Moore635374e2009-03-09 01:21:12 -06003293 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done,
3294 msecs_to_jiffies(10000));
3295 if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) {
3296 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
3297 ioc->name, __func__);
3298 _debug_dump_mf(mpi_request,
3299 sizeof(Mpi2SepRequest_t)/4);
3300 if (!(ioc->base_cmds.status & MPT2_CMD_RESET))
3301 issue_reset = 1;
3302 goto issue_host_reset;
3303 }
3304 if (ioc->base_cmds.status & MPT2_CMD_REPLY_VALID)
3305 memcpy(mpi_reply, ioc->base_cmds.reply,
3306 sizeof(Mpi2SepReply_t));
3307 else
3308 memset(mpi_reply, 0, sizeof(Mpi2SepReply_t));
3309 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
3310 goto out;
3311
3312 issue_host_reset:
3313 if (issue_reset)
3314 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
3315 FORCE_BIG_HAMMER);
3316 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
3317 rc = -EFAULT;
3318 out:
3319 mutex_unlock(&ioc->base_cmds.mutex);
3320 return rc;
3321}
3322
3323/**
3324 * _base_get_port_facts - obtain port facts reply and save in ioc
3325 * @ioc: per adapter object
3326 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3327 *
3328 * Returns 0 for success, non-zero for failure.
3329 */
3330static int
3331_base_get_port_facts(struct MPT2SAS_ADAPTER *ioc, int port, int sleep_flag)
3332{
3333 Mpi2PortFactsRequest_t mpi_request;
Kashyap, Desaic97951e2011-06-14 10:54:56 +05303334 Mpi2PortFactsReply_t mpi_reply;
3335 struct mpt2sas_port_facts *pfacts;
Eric Moore635374e2009-03-09 01:21:12 -06003336 int mpi_reply_sz, mpi_request_sz, r;
3337
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303338 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06003339 __func__));
3340
3341 mpi_reply_sz = sizeof(Mpi2PortFactsReply_t);
3342 mpi_request_sz = sizeof(Mpi2PortFactsRequest_t);
3343 memset(&mpi_request, 0, mpi_request_sz);
3344 mpi_request.Function = MPI2_FUNCTION_PORT_FACTS;
3345 mpi_request.PortNumber = port;
3346 r = _base_handshake_req_reply_wait(ioc, mpi_request_sz,
3347 (u32 *)&mpi_request, mpi_reply_sz, (u16 *)&mpi_reply, 5, CAN_SLEEP);
3348
3349 if (r != 0) {
3350 printk(MPT2SAS_ERR_FMT "%s: handshake failed (r=%d)\n",
3351 ioc->name, __func__, r);
3352 return r;
3353 }
3354
3355 pfacts = &ioc->pfacts[port];
3356 memset(pfacts, 0, sizeof(Mpi2PortFactsReply_t));
3357 pfacts->PortNumber = mpi_reply.PortNumber;
3358 pfacts->VP_ID = mpi_reply.VP_ID;
3359 pfacts->VF_ID = mpi_reply.VF_ID;
3360 pfacts->MaxPostedCmdBuffers =
3361 le16_to_cpu(mpi_reply.MaxPostedCmdBuffers);
3362
3363 return 0;
3364}
3365
3366/**
3367 * _base_get_ioc_facts - obtain ioc facts reply and save in ioc
3368 * @ioc: per adapter object
3369 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3370 *
3371 * Returns 0 for success, non-zero for failure.
3372 */
3373static int
3374_base_get_ioc_facts(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
3375{
3376 Mpi2IOCFactsRequest_t mpi_request;
Kashyap, Desaic97951e2011-06-14 10:54:56 +05303377 Mpi2IOCFactsReply_t mpi_reply;
3378 struct mpt2sas_facts *facts;
Eric Moore635374e2009-03-09 01:21:12 -06003379 int mpi_reply_sz, mpi_request_sz, r;
3380
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303381 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06003382 __func__));
3383
3384 mpi_reply_sz = sizeof(Mpi2IOCFactsReply_t);
3385 mpi_request_sz = sizeof(Mpi2IOCFactsRequest_t);
3386 memset(&mpi_request, 0, mpi_request_sz);
3387 mpi_request.Function = MPI2_FUNCTION_IOC_FACTS;
3388 r = _base_handshake_req_reply_wait(ioc, mpi_request_sz,
3389 (u32 *)&mpi_request, mpi_reply_sz, (u16 *)&mpi_reply, 5, CAN_SLEEP);
3390
3391 if (r != 0) {
3392 printk(MPT2SAS_ERR_FMT "%s: handshake failed (r=%d)\n",
3393 ioc->name, __func__, r);
3394 return r;
3395 }
3396
3397 facts = &ioc->facts;
3398 memset(facts, 0, sizeof(Mpi2IOCFactsReply_t));
3399 facts->MsgVersion = le16_to_cpu(mpi_reply.MsgVersion);
3400 facts->HeaderVersion = le16_to_cpu(mpi_reply.HeaderVersion);
3401 facts->VP_ID = mpi_reply.VP_ID;
3402 facts->VF_ID = mpi_reply.VF_ID;
3403 facts->IOCExceptions = le16_to_cpu(mpi_reply.IOCExceptions);
3404 facts->MaxChainDepth = mpi_reply.MaxChainDepth;
3405 facts->WhoInit = mpi_reply.WhoInit;
3406 facts->NumberOfPorts = mpi_reply.NumberOfPorts;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05303407 facts->MaxMSIxVectors = mpi_reply.MaxMSIxVectors;
Eric Moore635374e2009-03-09 01:21:12 -06003408 facts->RequestCredit = le16_to_cpu(mpi_reply.RequestCredit);
3409 facts->MaxReplyDescriptorPostQueueDepth =
3410 le16_to_cpu(mpi_reply.MaxReplyDescriptorPostQueueDepth);
3411 facts->ProductID = le16_to_cpu(mpi_reply.ProductID);
3412 facts->IOCCapabilities = le32_to_cpu(mpi_reply.IOCCapabilities);
3413 if ((facts->IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID))
3414 ioc->ir_firmware = 1;
3415 facts->FWVersion.Word = le32_to_cpu(mpi_reply.FWVersion.Word);
3416 facts->IOCRequestFrameSize =
3417 le16_to_cpu(mpi_reply.IOCRequestFrameSize);
3418 facts->MaxInitiators = le16_to_cpu(mpi_reply.MaxInitiators);
3419 facts->MaxTargets = le16_to_cpu(mpi_reply.MaxTargets);
3420 ioc->shost->max_id = -1;
3421 facts->MaxSasExpanders = le16_to_cpu(mpi_reply.MaxSasExpanders);
3422 facts->MaxEnclosures = le16_to_cpu(mpi_reply.MaxEnclosures);
3423 facts->ProtocolFlags = le16_to_cpu(mpi_reply.ProtocolFlags);
3424 facts->HighPriorityCredit =
3425 le16_to_cpu(mpi_reply.HighPriorityCredit);
3426 facts->ReplyFrameSize = mpi_reply.ReplyFrameSize;
3427 facts->MaxDevHandle = le16_to_cpu(mpi_reply.MaxDevHandle);
3428
3429 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "hba queue depth(%d), "
3430 "max chains per io(%d)\n", ioc->name, facts->RequestCredit,
3431 facts->MaxChainDepth));
3432 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "request frame size(%d), "
3433 "reply frame size(%d)\n", ioc->name,
3434 facts->IOCRequestFrameSize * 4, facts->ReplyFrameSize * 4));
3435 return 0;
3436}
3437
3438/**
3439 * _base_send_ioc_init - send ioc_init to firmware
3440 * @ioc: per adapter object
Eric Moore635374e2009-03-09 01:21:12 -06003441 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3442 *
3443 * Returns 0 for success, non-zero for failure.
3444 */
3445static int
Kashyap, Desai7b936b02009-09-25 11:44:41 +05303446_base_send_ioc_init(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
Eric Moore635374e2009-03-09 01:21:12 -06003447{
3448 Mpi2IOCInitRequest_t mpi_request;
3449 Mpi2IOCInitReply_t mpi_reply;
3450 int r;
Kashyap, Desaia8ebd762009-09-23 17:29:29 +05303451 struct timeval current_time;
Kashyap, Desai463217b2009-10-05 15:53:06 +05303452 u16 ioc_status;
Eric Moore635374e2009-03-09 01:21:12 -06003453
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303454 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06003455 __func__));
3456
3457 memset(&mpi_request, 0, sizeof(Mpi2IOCInitRequest_t));
3458 mpi_request.Function = MPI2_FUNCTION_IOC_INIT;
3459 mpi_request.WhoInit = MPI2_WHOINIT_HOST_DRIVER;
Kashyap, Desai7b936b02009-09-25 11:44:41 +05303460 mpi_request.VF_ID = 0; /* TODO */
3461 mpi_request.VP_ID = 0;
Eric Moore635374e2009-03-09 01:21:12 -06003462 mpi_request.MsgVersion = cpu_to_le16(MPI2_VERSION);
3463 mpi_request.HeaderVersion = cpu_to_le16(MPI2_HEADER_VERSION);
3464
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05303465 if (_base_is_controller_msix_enabled(ioc))
3466 mpi_request.HostMSIxVectors = ioc->reply_queue_count;
Eric Moore635374e2009-03-09 01:21:12 -06003467 mpi_request.SystemRequestFrameSize = cpu_to_le16(ioc->request_sz/4);
3468 mpi_request.ReplyDescriptorPostQueueDepth =
3469 cpu_to_le16(ioc->reply_post_queue_depth);
3470 mpi_request.ReplyFreeQueueDepth =
3471 cpu_to_le16(ioc->reply_free_queue_depth);
3472
Eric Moore635374e2009-03-09 01:21:12 -06003473 mpi_request.SenseBufferAddressHigh =
Kashyap, Desaic97951e2011-06-14 10:54:56 +05303474 cpu_to_le32((u64)ioc->sense_dma >> 32);
Eric Moore635374e2009-03-09 01:21:12 -06003475 mpi_request.SystemReplyAddressHigh =
Kashyap, Desaic97951e2011-06-14 10:54:56 +05303476 cpu_to_le32((u64)ioc->reply_dma >> 32);
Eric Moore635374e2009-03-09 01:21:12 -06003477 mpi_request.SystemRequestFrameBaseAddress =
Kashyap, Desaic97951e2011-06-14 10:54:56 +05303478 cpu_to_le64((u64)ioc->request_dma);
Eric Moore635374e2009-03-09 01:21:12 -06003479 mpi_request.ReplyFreeQueueAddress =
Kashyap, Desaic97951e2011-06-14 10:54:56 +05303480 cpu_to_le64((u64)ioc->reply_free_dma);
Eric Moore635374e2009-03-09 01:21:12 -06003481 mpi_request.ReplyDescriptorPostQueueAddress =
Kashyap, Desaic97951e2011-06-14 10:54:56 +05303482 cpu_to_le64((u64)ioc->reply_post_free_dma);
3483
Eric Moore635374e2009-03-09 01:21:12 -06003484
Kashyap, Desaia8ebd762009-09-23 17:29:29 +05303485 /* This time stamp specifies number of milliseconds
3486 * since epoch ~ midnight January 1, 1970.
3487 */
3488 do_gettimeofday(&current_time);
Kashyap, Desai7921b352010-03-17 16:21:33 +05303489 mpi_request.TimeStamp = cpu_to_le64((u64)current_time.tv_sec * 1000 +
3490 (current_time.tv_usec / 1000));
Kashyap, Desaia8ebd762009-09-23 17:29:29 +05303491
Eric Moore635374e2009-03-09 01:21:12 -06003492 if (ioc->logging_level & MPT_DEBUG_INIT) {
Kashyap, Desaic97951e2011-06-14 10:54:56 +05303493 __le32 *mfp;
Eric Moore635374e2009-03-09 01:21:12 -06003494 int i;
3495
Kashyap, Desaic97951e2011-06-14 10:54:56 +05303496 mfp = (__le32 *)&mpi_request;
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303497 printk(KERN_INFO "\toffset:data\n");
Eric Moore635374e2009-03-09 01:21:12 -06003498 for (i = 0; i < sizeof(Mpi2IOCInitRequest_t)/4; i++)
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303499 printk(KERN_INFO "\t[0x%02x]:%08x\n", i*4,
Eric Moore635374e2009-03-09 01:21:12 -06003500 le32_to_cpu(mfp[i]));
3501 }
3502
3503 r = _base_handshake_req_reply_wait(ioc,
3504 sizeof(Mpi2IOCInitRequest_t), (u32 *)&mpi_request,
3505 sizeof(Mpi2IOCInitReply_t), (u16 *)&mpi_reply, 10,
3506 sleep_flag);
3507
3508 if (r != 0) {
3509 printk(MPT2SAS_ERR_FMT "%s: handshake failed (r=%d)\n",
3510 ioc->name, __func__, r);
3511 return r;
3512 }
3513
Kashyap, Desai463217b2009-10-05 15:53:06 +05303514 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
3515 if (ioc_status != MPI2_IOCSTATUS_SUCCESS ||
Eric Moore635374e2009-03-09 01:21:12 -06003516 mpi_reply.IOCLogInfo) {
3517 printk(MPT2SAS_ERR_FMT "%s: failed\n", ioc->name, __func__);
3518 r = -EIO;
3519 }
3520
3521 return 0;
3522}
3523
3524/**
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303525 * mpt2sas_port_enable_done - command completion routine for port enable
3526 * @ioc: per adapter object
3527 * @smid: system request message index
3528 * @msix_index: MSIX table index supplied by the OS
3529 * @reply: reply message frame(lower 32bit addr)
3530 *
3531 * Return 1 meaning mf should be freed from _base_interrupt
3532 * 0 means the mf is freed from this function.
3533 */
3534u8
3535mpt2sas_port_enable_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
3536 u32 reply)
3537{
3538 MPI2DefaultReply_t *mpi_reply;
3539 u16 ioc_status;
3540
3541 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
3542 if (mpi_reply && mpi_reply->Function == MPI2_FUNCTION_EVENT_ACK)
3543 return 1;
3544
3545 if (ioc->port_enable_cmds.status == MPT2_CMD_NOT_USED)
3546 return 1;
3547
3548 ioc->port_enable_cmds.status |= MPT2_CMD_COMPLETE;
3549 if (mpi_reply) {
3550 ioc->port_enable_cmds.status |= MPT2_CMD_REPLY_VALID;
3551 memcpy(ioc->port_enable_cmds.reply, mpi_reply,
3552 mpi_reply->MsgLength*4);
3553 }
3554 ioc->port_enable_cmds.status &= ~MPT2_CMD_PENDING;
3555
3556 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
3557
3558 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
3559 ioc->port_enable_failed = 1;
3560
3561 if (ioc->is_driver_loading) {
3562 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
3563 mpt2sas_port_enable_complete(ioc);
3564 return 1;
3565 } else {
3566 ioc->start_scan_failed = ioc_status;
3567 ioc->start_scan = 0;
3568 return 1;
3569 }
3570 }
3571 complete(&ioc->port_enable_cmds.done);
3572 return 1;
3573}
3574
3575
3576/**
Eric Moore635374e2009-03-09 01:21:12 -06003577 * _base_send_port_enable - send port_enable(discovery stuff) to firmware
3578 * @ioc: per adapter object
Eric Moore635374e2009-03-09 01:21:12 -06003579 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3580 *
3581 * Returns 0 for success, non-zero for failure.
3582 */
3583static int
Kashyap, Desai7b936b02009-09-25 11:44:41 +05303584_base_send_port_enable(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
Eric Moore635374e2009-03-09 01:21:12 -06003585{
3586 Mpi2PortEnableRequest_t *mpi_request;
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303587 Mpi2PortEnableReply_t *mpi_reply;
Eric Moore635374e2009-03-09 01:21:12 -06003588 unsigned long timeleft;
3589 int r = 0;
3590 u16 smid;
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303591 u16 ioc_status;
Eric Moore635374e2009-03-09 01:21:12 -06003592
3593 printk(MPT2SAS_INFO_FMT "sending port enable !!\n", ioc->name);
3594
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303595 if (ioc->port_enable_cmds.status & MPT2_CMD_PENDING) {
Eric Moore635374e2009-03-09 01:21:12 -06003596 printk(MPT2SAS_ERR_FMT "%s: internal command already in use\n",
3597 ioc->name, __func__);
3598 return -EAGAIN;
3599 }
3600
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303601 smid = mpt2sas_base_get_smid(ioc, ioc->port_enable_cb_idx);
Eric Moore635374e2009-03-09 01:21:12 -06003602 if (!smid) {
3603 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
3604 ioc->name, __func__);
3605 return -EAGAIN;
3606 }
3607
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303608 ioc->port_enable_cmds.status = MPT2_CMD_PENDING;
Eric Moore635374e2009-03-09 01:21:12 -06003609 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303610 ioc->port_enable_cmds.smid = smid;
Eric Moore635374e2009-03-09 01:21:12 -06003611 memset(mpi_request, 0, sizeof(Mpi2PortEnableRequest_t));
3612 mpi_request->Function = MPI2_FUNCTION_PORT_ENABLE;
Eric Moore635374e2009-03-09 01:21:12 -06003613
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303614 init_completion(&ioc->port_enable_cmds.done);
Kashyap, Desai7b936b02009-09-25 11:44:41 +05303615 mpt2sas_base_put_smid_default(ioc, smid);
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303616 timeleft = wait_for_completion_timeout(&ioc->port_enable_cmds.done,
Eric Moore635374e2009-03-09 01:21:12 -06003617 300*HZ);
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303618 if (!(ioc->port_enable_cmds.status & MPT2_CMD_COMPLETE)) {
Eric Moore635374e2009-03-09 01:21:12 -06003619 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
3620 ioc->name, __func__);
3621 _debug_dump_mf(mpi_request,
3622 sizeof(Mpi2PortEnableRequest_t)/4);
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303623 if (ioc->port_enable_cmds.status & MPT2_CMD_RESET)
Eric Moore635374e2009-03-09 01:21:12 -06003624 r = -EFAULT;
3625 else
3626 r = -ETIME;
3627 goto out;
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303628 }
3629 mpi_reply = ioc->port_enable_cmds.reply;
Eric Moore635374e2009-03-09 01:21:12 -06003630
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303631 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
3632 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3633 printk(MPT2SAS_ERR_FMT "%s: failed with (ioc_status=0x%08x)\n",
3634 ioc->name, __func__, ioc_status);
Eric Moore635374e2009-03-09 01:21:12 -06003635 r = -EFAULT;
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303636 goto out;
Eric Moore635374e2009-03-09 01:21:12 -06003637 }
3638 out:
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303639 ioc->port_enable_cmds.status = MPT2_CMD_NOT_USED;
3640 printk(MPT2SAS_INFO_FMT "port enable: %s\n", ioc->name, ((r == 0) ?
3641 "SUCCESS" : "FAILED"));
Eric Moore635374e2009-03-09 01:21:12 -06003642 return r;
3643}
3644
3645/**
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05303646 * mpt2sas_port_enable - initiate firmware discovery (don't wait for reply)
3647 * @ioc: per adapter object
3648 *
3649 * Returns 0 for success, non-zero for failure.
3650 */
3651int
3652mpt2sas_port_enable(struct MPT2SAS_ADAPTER *ioc)
3653{
3654 Mpi2PortEnableRequest_t *mpi_request;
3655 u16 smid;
3656
3657 printk(MPT2SAS_INFO_FMT "sending port enable !!\n", ioc->name);
3658
3659 if (ioc->port_enable_cmds.status & MPT2_CMD_PENDING) {
3660 printk(MPT2SAS_ERR_FMT "%s: internal command already in use\n",
3661 ioc->name, __func__);
3662 return -EAGAIN;
3663 }
3664
3665 smid = mpt2sas_base_get_smid(ioc, ioc->port_enable_cb_idx);
3666 if (!smid) {
3667 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
3668 ioc->name, __func__);
3669 return -EAGAIN;
3670 }
3671
3672 ioc->port_enable_cmds.status = MPT2_CMD_PENDING;
3673 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3674 ioc->port_enable_cmds.smid = smid;
3675 memset(mpi_request, 0, sizeof(Mpi2PortEnableRequest_t));
3676 mpi_request->Function = MPI2_FUNCTION_PORT_ENABLE;
3677
3678 mpt2sas_base_put_smid_default(ioc, smid);
3679 return 0;
3680}
3681
3682/**
3683 * _base_determine_wait_on_discovery - desposition
3684 * @ioc: per adapter object
3685 *
3686 * Decide whether to wait on discovery to complete. Used to either
3687 * locate boot device, or report volumes ahead of physical devices.
3688 *
3689 * Returns 1 for wait, 0 for don't wait
3690 */
3691static int
3692_base_determine_wait_on_discovery(struct MPT2SAS_ADAPTER *ioc)
3693{
3694 /* We wait for discovery to complete if IR firmware is loaded.
3695 * The sas topology events arrive before PD events, so we need time to
3696 * turn on the bit in ioc->pd_handles to indicate PD
3697 * Also, it maybe required to report Volumes ahead of physical
3698 * devices when MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING is set.
3699 */
3700 if (ioc->ir_firmware)
3701 return 1;
3702
3703 /* if no Bios, then we don't need to wait */
3704 if (!ioc->bios_pg3.BiosVersion)
3705 return 0;
3706
3707 /* Bios is present, then we drop down here.
3708 *
3709 * If there any entries in the Bios Page 2, then we wait
3710 * for discovery to complete.
3711 */
3712
3713 /* Current Boot Device */
3714 if ((ioc->bios_pg2.CurrentBootDeviceForm &
3715 MPI2_BIOSPAGE2_FORM_MASK) ==
3716 MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED &&
3717 /* Request Boot Device */
3718 (ioc->bios_pg2.ReqBootDeviceForm &
3719 MPI2_BIOSPAGE2_FORM_MASK) ==
3720 MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED &&
3721 /* Alternate Request Boot Device */
3722 (ioc->bios_pg2.ReqAltBootDeviceForm &
3723 MPI2_BIOSPAGE2_FORM_MASK) ==
3724 MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED)
3725 return 0;
3726
3727 return 1;
3728}
3729
3730
3731/**
Eric Moore635374e2009-03-09 01:21:12 -06003732 * _base_unmask_events - turn on notification for this event
3733 * @ioc: per adapter object
3734 * @event: firmware event
3735 *
3736 * The mask is stored in ioc->event_masks.
3737 */
3738static void
3739_base_unmask_events(struct MPT2SAS_ADAPTER *ioc, u16 event)
3740{
3741 u32 desired_event;
3742
3743 if (event >= 128)
3744 return;
3745
3746 desired_event = (1 << (event % 32));
3747
3748 if (event < 32)
3749 ioc->event_masks[0] &= ~desired_event;
3750 else if (event < 64)
3751 ioc->event_masks[1] &= ~desired_event;
3752 else if (event < 96)
3753 ioc->event_masks[2] &= ~desired_event;
3754 else if (event < 128)
3755 ioc->event_masks[3] &= ~desired_event;
3756}
3757
3758/**
3759 * _base_event_notification - send event notification
3760 * @ioc: per adapter object
Eric Moore635374e2009-03-09 01:21:12 -06003761 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3762 *
3763 * Returns 0 for success, non-zero for failure.
3764 */
3765static int
Kashyap, Desai7b936b02009-09-25 11:44:41 +05303766_base_event_notification(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
Eric Moore635374e2009-03-09 01:21:12 -06003767{
3768 Mpi2EventNotificationRequest_t *mpi_request;
3769 unsigned long timeleft;
3770 u16 smid;
3771 int r = 0;
3772 int i;
3773
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303774 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06003775 __func__));
3776
3777 if (ioc->base_cmds.status & MPT2_CMD_PENDING) {
3778 printk(MPT2SAS_ERR_FMT "%s: internal command already in use\n",
3779 ioc->name, __func__);
3780 return -EAGAIN;
3781 }
3782
3783 smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx);
3784 if (!smid) {
3785 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
3786 ioc->name, __func__);
3787 return -EAGAIN;
3788 }
3789 ioc->base_cmds.status = MPT2_CMD_PENDING;
3790 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3791 ioc->base_cmds.smid = smid;
3792 memset(mpi_request, 0, sizeof(Mpi2EventNotificationRequest_t));
3793 mpi_request->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
Kashyap, Desai7b936b02009-09-25 11:44:41 +05303794 mpi_request->VF_ID = 0; /* TODO */
3795 mpi_request->VP_ID = 0;
Eric Moore635374e2009-03-09 01:21:12 -06003796 for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++)
3797 mpi_request->EventMasks[i] =
Kashyap, Desaie94f6742010-03-17 16:24:52 +05303798 cpu_to_le32(ioc->event_masks[i]);
Kashyap, Desaibcfb6e62009-09-14 11:05:24 +05303799 init_completion(&ioc->base_cmds.done);
nagalakshmi.nandigama@lsi.comf01690d2011-12-01 07:43:58 +05303800 mpt2sas_base_put_smid_default(ioc, smid);
Eric Moore635374e2009-03-09 01:21:12 -06003801 timeleft = wait_for_completion_timeout(&ioc->base_cmds.done, 30*HZ);
3802 if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) {
3803 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
3804 ioc->name, __func__);
3805 _debug_dump_mf(mpi_request,
3806 sizeof(Mpi2EventNotificationRequest_t)/4);
3807 if (ioc->base_cmds.status & MPT2_CMD_RESET)
3808 r = -EFAULT;
3809 else
3810 r = -ETIME;
3811 } else
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303812 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: complete\n",
Eric Moore635374e2009-03-09 01:21:12 -06003813 ioc->name, __func__));
3814 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
3815 return r;
3816}
3817
3818/**
3819 * mpt2sas_base_validate_event_type - validating event types
3820 * @ioc: per adapter object
3821 * @event: firmware event
3822 *
3823 * This will turn on firmware event notification when application
3824 * ask for that event. We don't mask events that are already enabled.
3825 */
3826void
3827mpt2sas_base_validate_event_type(struct MPT2SAS_ADAPTER *ioc, u32 *event_type)
3828{
3829 int i, j;
3830 u32 event_mask, desired_event;
3831 u8 send_update_to_fw;
3832
3833 for (i = 0, send_update_to_fw = 0; i <
3834 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++) {
3835 event_mask = ~event_type[i];
3836 desired_event = 1;
3837 for (j = 0; j < 32; j++) {
3838 if (!(event_mask & desired_event) &&
3839 (ioc->event_masks[i] & desired_event)) {
3840 ioc->event_masks[i] &= ~desired_event;
3841 send_update_to_fw = 1;
3842 }
3843 desired_event = (desired_event << 1);
3844 }
3845 }
3846
3847 if (!send_update_to_fw)
3848 return;
3849
3850 mutex_lock(&ioc->base_cmds.mutex);
Kashyap, Desai7b936b02009-09-25 11:44:41 +05303851 _base_event_notification(ioc, CAN_SLEEP);
Eric Moore635374e2009-03-09 01:21:12 -06003852 mutex_unlock(&ioc->base_cmds.mutex);
3853}
3854
3855/**
3856 * _base_diag_reset - the "big hammer" start of day reset
3857 * @ioc: per adapter object
3858 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3859 *
3860 * Returns 0 for success, non-zero for failure.
3861 */
3862static int
3863_base_diag_reset(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
3864{
3865 u32 host_diagnostic;
3866 u32 ioc_state;
3867 u32 count;
3868 u32 hcb_size;
3869
3870 printk(MPT2SAS_INFO_FMT "sending diag reset !!\n", ioc->name);
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303871 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "clear interrupts\n",
Eric Moore635374e2009-03-09 01:21:12 -06003872 ioc->name));
Eric Moore635374e2009-03-09 01:21:12 -06003873
3874 count = 0;
3875 do {
3876 /* Write magic sequence to WriteSequence register
3877 * Loop until in diagnostic mode
3878 */
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303879 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "write magic "
Eric Moore635374e2009-03-09 01:21:12 -06003880 "sequence\n", ioc->name));
3881 writel(MPI2_WRSEQ_FLUSH_KEY_VALUE, &ioc->chip->WriteSequence);
3882 writel(MPI2_WRSEQ_1ST_KEY_VALUE, &ioc->chip->WriteSequence);
3883 writel(MPI2_WRSEQ_2ND_KEY_VALUE, &ioc->chip->WriteSequence);
3884 writel(MPI2_WRSEQ_3RD_KEY_VALUE, &ioc->chip->WriteSequence);
3885 writel(MPI2_WRSEQ_4TH_KEY_VALUE, &ioc->chip->WriteSequence);
3886 writel(MPI2_WRSEQ_5TH_KEY_VALUE, &ioc->chip->WriteSequence);
3887 writel(MPI2_WRSEQ_6TH_KEY_VALUE, &ioc->chip->WriteSequence);
3888
3889 /* wait 100 msec */
3890 if (sleep_flag == CAN_SLEEP)
3891 msleep(100);
3892 else
3893 mdelay(100);
3894
3895 if (count++ > 20)
3896 goto out;
3897
3898 host_diagnostic = readl(&ioc->chip->HostDiagnostic);
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303899 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "wrote magic "
Eric Moore635374e2009-03-09 01:21:12 -06003900 "sequence: count(%d), host_diagnostic(0x%08x)\n",
3901 ioc->name, count, host_diagnostic));
3902
3903 } while ((host_diagnostic & MPI2_DIAG_DIAG_WRITE_ENABLE) == 0);
3904
3905 hcb_size = readl(&ioc->chip->HCBSize);
3906
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303907 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "diag reset: issued\n",
Eric Moore635374e2009-03-09 01:21:12 -06003908 ioc->name));
3909 writel(host_diagnostic | MPI2_DIAG_RESET_ADAPTER,
3910 &ioc->chip->HostDiagnostic);
3911
3912 /* don't access any registers for 50 milliseconds */
3913 msleep(50);
3914
3915 /* 300 second max wait */
3916 for (count = 0; count < 3000000 ; count++) {
3917
3918 host_diagnostic = readl(&ioc->chip->HostDiagnostic);
3919
3920 if (host_diagnostic == 0xFFFFFFFF)
3921 goto out;
3922 if (!(host_diagnostic & MPI2_DIAG_RESET_ADAPTER))
3923 break;
3924
3925 /* wait 100 msec */
3926 if (sleep_flag == CAN_SLEEP)
3927 msleep(1);
3928 else
3929 mdelay(1);
3930 }
3931
3932 if (host_diagnostic & MPI2_DIAG_HCB_MODE) {
3933
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303934 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "restart the adapter "
Eric Moore635374e2009-03-09 01:21:12 -06003935 "assuming the HCB Address points to good F/W\n",
3936 ioc->name));
3937 host_diagnostic &= ~MPI2_DIAG_BOOT_DEVICE_SELECT_MASK;
3938 host_diagnostic |= MPI2_DIAG_BOOT_DEVICE_SELECT_HCDW;
3939 writel(host_diagnostic, &ioc->chip->HostDiagnostic);
3940
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303941 drsprintk(ioc, printk(MPT2SAS_INFO_FMT
Eric Moore635374e2009-03-09 01:21:12 -06003942 "re-enable the HCDW\n", ioc->name));
3943 writel(hcb_size | MPI2_HCB_SIZE_HCB_ENABLE,
3944 &ioc->chip->HCBSize);
3945 }
3946
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303947 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "restart the adapter\n",
Eric Moore635374e2009-03-09 01:21:12 -06003948 ioc->name));
3949 writel(host_diagnostic & ~MPI2_DIAG_HOLD_IOC_RESET,
3950 &ioc->chip->HostDiagnostic);
3951
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303952 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "disable writes to the "
Eric Moore635374e2009-03-09 01:21:12 -06003953 "diagnostic register\n", ioc->name));
3954 writel(MPI2_WRSEQ_FLUSH_KEY_VALUE, &ioc->chip->WriteSequence);
3955
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303956 drsprintk(ioc, printk(MPT2SAS_INFO_FMT "Wait for FW to go to the "
Eric Moore635374e2009-03-09 01:21:12 -06003957 "READY state\n", ioc->name));
3958 ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY, 20,
3959 sleep_flag);
3960 if (ioc_state) {
3961 printk(MPT2SAS_ERR_FMT "%s: failed going to ready state "
3962 " (ioc_state=0x%x)\n", ioc->name, __func__, ioc_state);
3963 goto out;
3964 }
3965
Eric Moore635374e2009-03-09 01:21:12 -06003966 printk(MPT2SAS_INFO_FMT "diag reset: SUCCESS\n", ioc->name);
3967 return 0;
3968
3969 out:
3970 printk(MPT2SAS_ERR_FMT "diag reset: FAILED\n", ioc->name);
3971 return -EFAULT;
3972}
3973
3974/**
3975 * _base_make_ioc_ready - put controller in READY state
3976 * @ioc: per adapter object
3977 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3978 * @type: FORCE_BIG_HAMMER or SOFT_RESET
3979 *
3980 * Returns 0 for success, non-zero for failure.
3981 */
3982static int
3983_base_make_ioc_ready(struct MPT2SAS_ADAPTER *ioc, int sleep_flag,
3984 enum reset_type type)
3985{
3986 u32 ioc_state;
Kashyap, Desaid32a8c12010-06-17 13:36:53 +05303987 int rc;
Eric Moore635374e2009-03-09 01:21:12 -06003988
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303989 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06003990 __func__));
3991
Eric Moore3cb54692010-07-08 14:44:34 -06003992 if (ioc->pci_error_recovery)
3993 return 0;
3994
Eric Moore635374e2009-03-09 01:21:12 -06003995 ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303996 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: ioc_state(0x%08x)\n",
Eric Moore635374e2009-03-09 01:21:12 -06003997 ioc->name, __func__, ioc_state));
3998
3999 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_READY)
4000 return 0;
4001
4002 if (ioc_state & MPI2_DOORBELL_USED) {
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304003 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "unexpected doorbell "
Eric Moore635374e2009-03-09 01:21:12 -06004004 "active!\n", ioc->name));
4005 goto issue_diag_reset;
4006 }
4007
4008 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
4009 mpt2sas_base_fault_info(ioc, ioc_state &
4010 MPI2_DOORBELL_DATA_MASK);
4011 goto issue_diag_reset;
4012 }
4013
4014 if (type == FORCE_BIG_HAMMER)
4015 goto issue_diag_reset;
4016
4017 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_OPERATIONAL)
4018 if (!(_base_send_ioc_reset(ioc,
Kashyap, Desaid32a8c12010-06-17 13:36:53 +05304019 MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET, 15, CAN_SLEEP))) {
4020 ioc->ioc_reset_count++;
Eric Moore635374e2009-03-09 01:21:12 -06004021 return 0;
Kashyap, Desaid32a8c12010-06-17 13:36:53 +05304022 }
Eric Moore635374e2009-03-09 01:21:12 -06004023
4024 issue_diag_reset:
Kashyap, Desaid32a8c12010-06-17 13:36:53 +05304025 rc = _base_diag_reset(ioc, CAN_SLEEP);
4026 ioc->ioc_reset_count++;
4027 return rc;
Eric Moore635374e2009-03-09 01:21:12 -06004028}
4029
4030/**
4031 * _base_make_ioc_operational - put controller in OPERATIONAL state
4032 * @ioc: per adapter object
Eric Moore635374e2009-03-09 01:21:12 -06004033 * @sleep_flag: CAN_SLEEP or NO_SLEEP
4034 *
4035 * Returns 0 for success, non-zero for failure.
4036 */
4037static int
Kashyap, Desai7b936b02009-09-25 11:44:41 +05304038_base_make_ioc_operational(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
Eric Moore635374e2009-03-09 01:21:12 -06004039{
4040 int r, i;
4041 unsigned long flags;
4042 u32 reply_address;
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05304043 u16 smid;
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05304044 struct _tr_list *delayed_tr, *delayed_tr_next;
Kashyap, Desai0bdccdb2011-04-07 12:32:49 +05304045 u8 hide_flag;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05304046 struct adapter_reply_queue *reply_q;
4047 long reply_post_free;
4048 u32 reply_post_free_sz;
Eric Moore635374e2009-03-09 01:21:12 -06004049
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304050 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06004051 __func__));
4052
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05304053 /* clean the delayed target reset list */
4054 list_for_each_entry_safe(delayed_tr, delayed_tr_next,
4055 &ioc->delayed_tr_list, list) {
4056 list_del(&delayed_tr->list);
4057 kfree(delayed_tr);
4058 }
4059
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05304060 list_for_each_entry_safe(delayed_tr, delayed_tr_next,
4061 &ioc->delayed_tr_volume_list, list) {
4062 list_del(&delayed_tr->list);
4063 kfree(delayed_tr);
4064 }
4065
Eric Moore635374e2009-03-09 01:21:12 -06004066 /* initialize the scsi lookup free list */
4067 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
4068 INIT_LIST_HEAD(&ioc->free_list);
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05304069 smid = 1;
4070 for (i = 0; i < ioc->scsiio_depth; i++, smid++) {
Kashyap, Desai35f805b2010-11-13 04:34:06 +05304071 INIT_LIST_HEAD(&ioc->scsi_lookup[i].chain_list);
Eric Moore635374e2009-03-09 01:21:12 -06004072 ioc->scsi_lookup[i].cb_idx = 0xFF;
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05304073 ioc->scsi_lookup[i].smid = smid;
4074 ioc->scsi_lookup[i].scmd = NULL;
Kashyap, Desai0bdccdb2011-04-07 12:32:49 +05304075 ioc->scsi_lookup[i].direct_io = 0;
Eric Moore635374e2009-03-09 01:21:12 -06004076 list_add_tail(&ioc->scsi_lookup[i].tracker_list,
4077 &ioc->free_list);
4078 }
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05304079
4080 /* hi-priority queue */
4081 INIT_LIST_HEAD(&ioc->hpr_free_list);
4082 smid = ioc->hi_priority_smid;
4083 for (i = 0; i < ioc->hi_priority_depth; i++, smid++) {
4084 ioc->hpr_lookup[i].cb_idx = 0xFF;
4085 ioc->hpr_lookup[i].smid = smid;
4086 list_add_tail(&ioc->hpr_lookup[i].tracker_list,
4087 &ioc->hpr_free_list);
4088 }
4089
4090 /* internal queue */
4091 INIT_LIST_HEAD(&ioc->internal_free_list);
4092 smid = ioc->internal_smid;
4093 for (i = 0; i < ioc->internal_depth; i++, smid++) {
4094 ioc->internal_lookup[i].cb_idx = 0xFF;
4095 ioc->internal_lookup[i].smid = smid;
4096 list_add_tail(&ioc->internal_lookup[i].tracker_list,
4097 &ioc->internal_free_list);
4098 }
Kashyap, Desai35f805b2010-11-13 04:34:06 +05304099
4100 /* chain pool */
4101 INIT_LIST_HEAD(&ioc->free_chain_list);
4102 for (i = 0; i < ioc->chain_depth; i++)
4103 list_add_tail(&ioc->chain_lookup[i].tracker_list,
4104 &ioc->free_chain_list);
4105
Eric Moore635374e2009-03-09 01:21:12 -06004106 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
4107
4108 /* initialize Reply Free Queue */
4109 for (i = 0, reply_address = (u32)ioc->reply_dma ;
4110 i < ioc->reply_free_queue_depth ; i++, reply_address +=
4111 ioc->reply_sz)
4112 ioc->reply_free[i] = cpu_to_le32(reply_address);
4113
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05304114 /* initialize reply queues */
4115 _base_assign_reply_queues(ioc);
4116
Eric Moore635374e2009-03-09 01:21:12 -06004117 /* initialize Reply Post Free Queue */
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05304118 reply_post_free = (long)ioc->reply_post_free;
4119 reply_post_free_sz = ioc->reply_post_queue_depth *
4120 sizeof(Mpi2DefaultReplyDescriptor_t);
4121 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) {
4122 reply_q->reply_post_host_index = 0;
4123 reply_q->reply_post_free = (Mpi2ReplyDescriptorsUnion_t *)
4124 reply_post_free;
4125 for (i = 0; i < ioc->reply_post_queue_depth; i++)
4126 reply_q->reply_post_free[i].Words =
4127 cpu_to_le64(ULLONG_MAX);
4128 if (!_base_is_controller_msix_enabled(ioc))
4129 goto skip_init_reply_post_free_queue;
4130 reply_post_free += reply_post_free_sz;
4131 }
4132 skip_init_reply_post_free_queue:
Eric Moore635374e2009-03-09 01:21:12 -06004133
Kashyap, Desai7b936b02009-09-25 11:44:41 +05304134 r = _base_send_ioc_init(ioc, sleep_flag);
Eric Moore635374e2009-03-09 01:21:12 -06004135 if (r)
4136 return r;
4137
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05304138 /* initialize reply free host index */
Eric Moore635374e2009-03-09 01:21:12 -06004139 ioc->reply_free_host_index = ioc->reply_free_queue_depth - 1;
Eric Moore635374e2009-03-09 01:21:12 -06004140 writel(ioc->reply_free_host_index, &ioc->chip->ReplyFreeHostIndex);
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05304141
4142 /* initialize reply post host index */
4143 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) {
4144 writel(reply_q->msix_index << MPI2_RPHI_MSIX_INDEX_SHIFT,
4145 &ioc->chip->ReplyPostHostIndex);
4146 if (!_base_is_controller_msix_enabled(ioc))
4147 goto skip_init_reply_post_host_index;
4148 }
4149
4150 skip_init_reply_post_host_index:
Eric Moore635374e2009-03-09 01:21:12 -06004151
4152 _base_unmask_interrupts(ioc);
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05304153
Kashyap, Desai7b936b02009-09-25 11:44:41 +05304154 r = _base_event_notification(ioc, sleep_flag);
Eric Moore635374e2009-03-09 01:21:12 -06004155 if (r)
4156 return r;
4157
4158 if (sleep_flag == CAN_SLEEP)
4159 _base_static_config_pages(ioc);
4160
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05304161
4162 if (ioc->is_driver_loading) {
4163
4164
4165
4166 ioc->wait_for_discovery_to_complete =
4167 _base_determine_wait_on_discovery(ioc);
4168 return r; /* scan_start and scan_finished support */
4169 }
4170
4171
4172 if (ioc->wait_for_discovery_to_complete && ioc->is_warpdrive) {
Kashyap, Desai0bdccdb2011-04-07 12:32:49 +05304173 if (ioc->manu_pg10.OEMIdentifier == 0x80) {
4174 hide_flag = (u8) (ioc->manu_pg10.OEMSpecificFlags0 &
4175 MFG_PAGE10_HIDE_SSDS_MASK);
4176 if (hide_flag != MFG_PAGE10_HIDE_SSDS_MASK)
4177 ioc->mfg_pg10_hide_flag = hide_flag;
4178 }
4179 }
4180
Kashyap, Desai7b936b02009-09-25 11:44:41 +05304181 r = _base_send_port_enable(ioc, sleep_flag);
Eric Moore635374e2009-03-09 01:21:12 -06004182 if (r)
4183 return r;
4184
4185 return r;
4186}
4187
4188/**
4189 * mpt2sas_base_free_resources - free resources controller resources (io/irq/memap)
4190 * @ioc: per adapter object
4191 *
4192 * Return nothing.
4193 */
4194void
4195mpt2sas_base_free_resources(struct MPT2SAS_ADAPTER *ioc)
4196{
4197 struct pci_dev *pdev = ioc->pdev;
4198
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304199 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06004200 __func__));
4201
4202 _base_mask_interrupts(ioc);
Kashyap, Desai6558bbb2010-03-17 16:23:36 +05304203 ioc->shost_recovery = 1;
Eric Moore635374e2009-03-09 01:21:12 -06004204 _base_make_ioc_ready(ioc, CAN_SLEEP, SOFT_RESET);
Kashyap, Desai6558bbb2010-03-17 16:23:36 +05304205 ioc->shost_recovery = 0;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05304206 _base_free_irq(ioc);
Eric Moore635374e2009-03-09 01:21:12 -06004207 _base_disable_msix(ioc);
4208 if (ioc->chip_phys)
4209 iounmap(ioc->chip);
Eric Moore635374e2009-03-09 01:21:12 -06004210 ioc->chip_phys = 0;
4211 pci_release_selected_regions(ioc->pdev, ioc->bars);
Kashyap, Desaief7c80c2010-04-05 14:20:07 +05304212 pci_disable_pcie_error_reporting(pdev);
Eric Moore635374e2009-03-09 01:21:12 -06004213 pci_disable_device(pdev);
Eric Moore635374e2009-03-09 01:21:12 -06004214 return;
4215}
4216
4217/**
4218 * mpt2sas_base_attach - attach controller instance
4219 * @ioc: per adapter object
4220 *
4221 * Returns 0 for success, non-zero for failure.
4222 */
4223int
4224mpt2sas_base_attach(struct MPT2SAS_ADAPTER *ioc)
4225{
4226 int r, i;
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05304227 int cpu_id, last_cpu_id = 0;
Eric Moore635374e2009-03-09 01:21:12 -06004228
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304229 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06004230 __func__));
4231
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05304232 /* setup cpu_msix_table */
4233 ioc->cpu_count = num_online_cpus();
4234 for_each_online_cpu(cpu_id)
4235 last_cpu_id = cpu_id;
4236 ioc->cpu_msix_table_sz = last_cpu_id + 1;
4237 ioc->cpu_msix_table = kzalloc(ioc->cpu_msix_table_sz, GFP_KERNEL);
4238 ioc->reply_queue_count = 1;
4239 if (!ioc->cpu_msix_table) {
4240 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "allocation for "
4241 "cpu_msix_table failed!!!\n", ioc->name));
4242 r = -ENOMEM;
4243 goto out_free_resources;
4244 }
4245
4246 if (ioc->is_warpdrive) {
4247 ioc->reply_post_host_index = kcalloc(ioc->cpu_msix_table_sz,
4248 sizeof(resource_size_t *), GFP_KERNEL);
4249 if (!ioc->reply_post_host_index) {
4250 dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "allocation "
4251 "for cpu_msix_table failed!!!\n", ioc->name));
4252 r = -ENOMEM;
4253 goto out_free_resources;
4254 }
4255 }
4256
Eric Moore635374e2009-03-09 01:21:12 -06004257 r = mpt2sas_base_map_resources(ioc);
4258 if (r)
Roland Dreierc24a1712011-11-30 17:14:22 -08004259 goto out_free_resources;
Eric Moore635374e2009-03-09 01:21:12 -06004260
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05304261 if (ioc->is_warpdrive) {
4262 ioc->reply_post_host_index[0] =
4263 (resource_size_t *)&ioc->chip->ReplyPostHostIndex;
4264
4265 for (i = 1; i < ioc->cpu_msix_table_sz; i++)
4266 ioc->reply_post_host_index[i] = (resource_size_t *)
4267 ((u8 *)&ioc->chip->Doorbell + (0x4000 + ((i - 1)
4268 * 4)));
4269 }
4270
Kashyap, Desaifcfe6392009-08-07 19:38:48 +05304271 pci_set_drvdata(ioc->pdev, ioc->shost);
Kashyap, Desai96b681c2009-09-23 17:32:06 +05304272 r = _base_get_ioc_facts(ioc, CAN_SLEEP);
Eric Moore635374e2009-03-09 01:21:12 -06004273 if (r)
4274 goto out_free_resources;
4275
Kashyap, Desai96b681c2009-09-23 17:32:06 +05304276 r = _base_make_ioc_ready(ioc, CAN_SLEEP, SOFT_RESET);
Eric Moore635374e2009-03-09 01:21:12 -06004277 if (r)
4278 goto out_free_resources;
4279
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05304280 ioc->pfacts = kcalloc(ioc->facts.NumberOfPorts,
4281 sizeof(Mpi2PortFactsReply_t), GFP_KERNEL);
Kashyap, Desaif6aee7b2010-03-17 16:26:48 +05304282 if (!ioc->pfacts) {
4283 r = -ENOMEM;
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05304284 goto out_free_resources;
Kashyap, Desaif6aee7b2010-03-17 16:26:48 +05304285 }
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05304286
4287 for (i = 0 ; i < ioc->facts.NumberOfPorts; i++) {
4288 r = _base_get_port_facts(ioc, i, CAN_SLEEP);
4289 if (r)
4290 goto out_free_resources;
4291 }
4292
Eric Moore635374e2009-03-09 01:21:12 -06004293 r = _base_allocate_memory_pools(ioc, CAN_SLEEP);
4294 if (r)
4295 goto out_free_resources;
4296
4297 init_waitqueue_head(&ioc->reset_wq);
4298
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05304299 /* allocate memory pd handle bitmask list */
4300 ioc->pd_handles_sz = (ioc->facts.MaxDevHandle / 8);
4301 if (ioc->facts.MaxDevHandle % 8)
4302 ioc->pd_handles_sz++;
4303 ioc->pd_handles = kzalloc(ioc->pd_handles_sz,
4304 GFP_KERNEL);
Kashyap, Desai3e2e8332010-06-17 13:47:29 +05304305 if (!ioc->pd_handles) {
4306 r = -ENOMEM;
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05304307 goto out_free_resources;
Kashyap, Desai3e2e8332010-06-17 13:47:29 +05304308 }
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05304309
Kashyap, Desaie75b9b62009-12-16 18:52:39 +05304310 ioc->fwfault_debug = mpt2sas_fwfault_debug;
4311
Eric Moore635374e2009-03-09 01:21:12 -06004312 /* base internal command bits */
4313 mutex_init(&ioc->base_cmds.mutex);
Eric Moore635374e2009-03-09 01:21:12 -06004314 ioc->base_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
4315 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
4316
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05304317 /* port_enable command bits */
4318 ioc->port_enable_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
4319 ioc->port_enable_cmds.status = MPT2_CMD_NOT_USED;
4320
Eric Moore635374e2009-03-09 01:21:12 -06004321 /* transport internal command bits */
4322 ioc->transport_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
4323 ioc->transport_cmds.status = MPT2_CMD_NOT_USED;
4324 mutex_init(&ioc->transport_cmds.mutex);
Eric Moore635374e2009-03-09 01:21:12 -06004325
Kashyap, Desaid685c262009-11-17 13:16:37 +05304326 /* scsih internal command bits */
4327 ioc->scsih_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
4328 ioc->scsih_cmds.status = MPT2_CMD_NOT_USED;
4329 mutex_init(&ioc->scsih_cmds.mutex);
4330
Eric Moore635374e2009-03-09 01:21:12 -06004331 /* task management internal command bits */
4332 ioc->tm_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
4333 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
4334 mutex_init(&ioc->tm_cmds.mutex);
Eric Moore635374e2009-03-09 01:21:12 -06004335
4336 /* config page internal command bits */
4337 ioc->config_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
4338 ioc->config_cmds.status = MPT2_CMD_NOT_USED;
4339 mutex_init(&ioc->config_cmds.mutex);
Eric Moore635374e2009-03-09 01:21:12 -06004340
4341 /* ctl module internal command bits */
4342 ioc->ctl_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
Kashyap, Desai769578f2010-06-17 13:49:28 +05304343 ioc->ctl_cmds.sense = kzalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL);
Eric Moore635374e2009-03-09 01:21:12 -06004344 ioc->ctl_cmds.status = MPT2_CMD_NOT_USED;
4345 mutex_init(&ioc->ctl_cmds.mutex);
Eric Moore635374e2009-03-09 01:21:12 -06004346
Kashyap, Desaif6aee7b2010-03-17 16:26:48 +05304347 if (!ioc->base_cmds.reply || !ioc->transport_cmds.reply ||
4348 !ioc->scsih_cmds.reply || !ioc->tm_cmds.reply ||
Kashyap, Desai769578f2010-06-17 13:49:28 +05304349 !ioc->config_cmds.reply || !ioc->ctl_cmds.reply ||
4350 !ioc->ctl_cmds.sense) {
Kashyap, Desaif6aee7b2010-03-17 16:26:48 +05304351 r = -ENOMEM;
4352 goto out_free_resources;
4353 }
4354
Kashyap, Desai3e2e8332010-06-17 13:47:29 +05304355 if (!ioc->base_cmds.reply || !ioc->transport_cmds.reply ||
4356 !ioc->scsih_cmds.reply || !ioc->tm_cmds.reply ||
4357 !ioc->config_cmds.reply || !ioc->ctl_cmds.reply) {
4358 r = -ENOMEM;
4359 goto out_free_resources;
4360 }
4361
Eric Moore635374e2009-03-09 01:21:12 -06004362 for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++)
4363 ioc->event_masks[i] = -1;
4364
4365 /* here we enable the events we care about */
4366 _base_unmask_events(ioc, MPI2_EVENT_SAS_DISCOVERY);
4367 _base_unmask_events(ioc, MPI2_EVENT_SAS_BROADCAST_PRIMITIVE);
4368 _base_unmask_events(ioc, MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST);
4369 _base_unmask_events(ioc, MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
4370 _base_unmask_events(ioc, MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE);
4371 _base_unmask_events(ioc, MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST);
4372 _base_unmask_events(ioc, MPI2_EVENT_IR_VOLUME);
4373 _base_unmask_events(ioc, MPI2_EVENT_IR_PHYSICAL_DISK);
4374 _base_unmask_events(ioc, MPI2_EVENT_IR_OPERATION_STATUS);
Eric Moore635374e2009-03-09 01:21:12 -06004375 _base_unmask_events(ioc, MPI2_EVENT_LOG_ENTRY_ADDED);
Kashyap, Desai7b936b02009-09-25 11:44:41 +05304376 r = _base_make_ioc_operational(ioc, CAN_SLEEP);
Eric Moore635374e2009-03-09 01:21:12 -06004377 if (r)
4378 goto out_free_resources;
4379
Kashyap, Desai6cb8ef52010-11-13 04:32:18 +05304380 if (missing_delay[0] != -1 && missing_delay[1] != -1)
4381 _base_update_missing_delay(ioc, missing_delay[0],
4382 missing_delay[1]);
4383
Eric Moore635374e2009-03-09 01:21:12 -06004384 return 0;
4385
4386 out_free_resources:
4387
4388 ioc->remove_host = 1;
4389 mpt2sas_base_free_resources(ioc);
4390 _base_release_memory_pools(ioc);
Kashyap, Desaifcfe6392009-08-07 19:38:48 +05304391 pci_set_drvdata(ioc->pdev, NULL);
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05304392 kfree(ioc->cpu_msix_table);
4393 if (ioc->is_warpdrive)
4394 kfree(ioc->reply_post_host_index);
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05304395 kfree(ioc->pd_handles);
Eric Moore635374e2009-03-09 01:21:12 -06004396 kfree(ioc->tm_cmds.reply);
4397 kfree(ioc->transport_cmds.reply);
Kashyap, Desaie94f6742010-03-17 16:24:52 +05304398 kfree(ioc->scsih_cmds.reply);
Eric Moore635374e2009-03-09 01:21:12 -06004399 kfree(ioc->config_cmds.reply);
4400 kfree(ioc->base_cmds.reply);
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05304401 kfree(ioc->port_enable_cmds.reply);
Eric Moore635374e2009-03-09 01:21:12 -06004402 kfree(ioc->ctl_cmds.reply);
Kashyap, Desai769578f2010-06-17 13:49:28 +05304403 kfree(ioc->ctl_cmds.sense);
Eric Moore635374e2009-03-09 01:21:12 -06004404 kfree(ioc->pfacts);
4405 ioc->ctl_cmds.reply = NULL;
4406 ioc->base_cmds.reply = NULL;
4407 ioc->tm_cmds.reply = NULL;
Kashyap, Desaie94f6742010-03-17 16:24:52 +05304408 ioc->scsih_cmds.reply = NULL;
Eric Moore635374e2009-03-09 01:21:12 -06004409 ioc->transport_cmds.reply = NULL;
4410 ioc->config_cmds.reply = NULL;
4411 ioc->pfacts = NULL;
4412 return r;
4413}
4414
4415
4416/**
4417 * mpt2sas_base_detach - remove controller instance
4418 * @ioc: per adapter object
4419 *
4420 * Return nothing.
4421 */
4422void
4423mpt2sas_base_detach(struct MPT2SAS_ADAPTER *ioc)
4424{
Eric Moore635374e2009-03-09 01:21:12 -06004425
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304426 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06004427 __func__));
4428
Kashyap, Desaie4750c92009-08-07 19:37:59 +05304429 mpt2sas_base_stop_watchdog(ioc);
Eric Moore635374e2009-03-09 01:21:12 -06004430 mpt2sas_base_free_resources(ioc);
4431 _base_release_memory_pools(ioc);
Kashyap, Desaifcfe6392009-08-07 19:38:48 +05304432 pci_set_drvdata(ioc->pdev, NULL);
nagalakshmi.nandigama@lsi.com911ae942011-09-08 06:18:50 +05304433 kfree(ioc->cpu_msix_table);
4434 if (ioc->is_warpdrive)
4435 kfree(ioc->reply_post_host_index);
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05304436 kfree(ioc->pd_handles);
Eric Moore635374e2009-03-09 01:21:12 -06004437 kfree(ioc->pfacts);
4438 kfree(ioc->ctl_cmds.reply);
Kashyap, Desai769578f2010-06-17 13:49:28 +05304439 kfree(ioc->ctl_cmds.sense);
Eric Moore635374e2009-03-09 01:21:12 -06004440 kfree(ioc->base_cmds.reply);
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05304441 kfree(ioc->port_enable_cmds.reply);
Eric Moore635374e2009-03-09 01:21:12 -06004442 kfree(ioc->tm_cmds.reply);
4443 kfree(ioc->transport_cmds.reply);
Kashyap, Desaie94f6742010-03-17 16:24:52 +05304444 kfree(ioc->scsih_cmds.reply);
Eric Moore635374e2009-03-09 01:21:12 -06004445 kfree(ioc->config_cmds.reply);
4446}
4447
4448/**
4449 * _base_reset_handler - reset callback handler (for base)
4450 * @ioc: per adapter object
4451 * @reset_phase: phase
4452 *
4453 * The handler for doing any required cleanup or initialization.
4454 *
4455 * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET,
4456 * MPT2_IOC_DONE_RESET
4457 *
4458 * Return nothing.
4459 */
4460static void
4461_base_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
4462{
Kashyap, Desai42244892011-01-04 11:38:39 +05304463 mpt2sas_scsih_reset_handler(ioc, reset_phase);
4464 mpt2sas_ctl_reset_handler(ioc, reset_phase);
Eric Moore635374e2009-03-09 01:21:12 -06004465 switch (reset_phase) {
4466 case MPT2_IOC_PRE_RESET:
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304467 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
Eric Moore635374e2009-03-09 01:21:12 -06004468 "MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
4469 break;
4470 case MPT2_IOC_AFTER_RESET:
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304471 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
Eric Moore635374e2009-03-09 01:21:12 -06004472 "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
4473 if (ioc->transport_cmds.status & MPT2_CMD_PENDING) {
4474 ioc->transport_cmds.status |= MPT2_CMD_RESET;
4475 mpt2sas_base_free_smid(ioc, ioc->transport_cmds.smid);
4476 complete(&ioc->transport_cmds.done);
4477 }
4478 if (ioc->base_cmds.status & MPT2_CMD_PENDING) {
4479 ioc->base_cmds.status |= MPT2_CMD_RESET;
4480 mpt2sas_base_free_smid(ioc, ioc->base_cmds.smid);
4481 complete(&ioc->base_cmds.done);
4482 }
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05304483 if (ioc->port_enable_cmds.status & MPT2_CMD_PENDING) {
4484 ioc->port_enable_failed = 1;
4485 ioc->port_enable_cmds.status |= MPT2_CMD_RESET;
4486 mpt2sas_base_free_smid(ioc, ioc->port_enable_cmds.smid);
4487 if (ioc->is_driver_loading) {
4488 ioc->start_scan_failed =
4489 MPI2_IOCSTATUS_INTERNAL_ERROR;
4490 ioc->start_scan = 0;
4491 ioc->port_enable_cmds.status =
4492 MPT2_CMD_NOT_USED;
4493 } else
4494 complete(&ioc->port_enable_cmds.done);
4495
4496 }
Eric Moore635374e2009-03-09 01:21:12 -06004497 if (ioc->config_cmds.status & MPT2_CMD_PENDING) {
4498 ioc->config_cmds.status |= MPT2_CMD_RESET;
4499 mpt2sas_base_free_smid(ioc, ioc->config_cmds.smid);
Alexey Dobriyan4be929b2010-05-24 14:33:03 -07004500 ioc->config_cmds.smid = USHRT_MAX;
Eric Moore635374e2009-03-09 01:21:12 -06004501 complete(&ioc->config_cmds.done);
4502 }
4503 break;
4504 case MPT2_IOC_DONE_RESET:
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304505 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
Eric Moore635374e2009-03-09 01:21:12 -06004506 "MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
4507 break;
4508 }
Eric Moore635374e2009-03-09 01:21:12 -06004509}
4510
4511/**
4512 * _wait_for_commands_to_complete - reset controller
4513 * @ioc: Pointer to MPT_ADAPTER structure
4514 * @sleep_flag: CAN_SLEEP or NO_SLEEP
4515 *
4516 * This function waiting(3s) for all pending commands to complete
4517 * prior to putting controller in reset.
4518 */
4519static void
4520_wait_for_commands_to_complete(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
4521{
4522 u32 ioc_state;
4523 unsigned long flags;
4524 u16 i;
4525
4526 ioc->pending_io_count = 0;
4527 if (sleep_flag != CAN_SLEEP)
4528 return;
4529
4530 ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
4531 if ((ioc_state & MPI2_IOC_STATE_MASK) != MPI2_IOC_STATE_OPERATIONAL)
4532 return;
4533
4534 /* pending command count */
4535 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05304536 for (i = 0; i < ioc->scsiio_depth; i++)
Eric Moore635374e2009-03-09 01:21:12 -06004537 if (ioc->scsi_lookup[i].cb_idx != 0xFF)
4538 ioc->pending_io_count++;
4539 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
4540
4541 if (!ioc->pending_io_count)
4542 return;
4543
4544 /* wait for pending commands to complete */
Kashyap, Desaid2742132010-06-17 13:28:55 +05304545 wait_event_timeout(ioc->reset_wq, ioc->pending_io_count == 0, 10 * HZ);
Eric Moore635374e2009-03-09 01:21:12 -06004546}
4547
4548/**
4549 * mpt2sas_base_hard_reset_handler - reset controller
4550 * @ioc: Pointer to MPT_ADAPTER structure
4551 * @sleep_flag: CAN_SLEEP or NO_SLEEP
4552 * @type: FORCE_BIG_HAMMER or SOFT_RESET
4553 *
4554 * Returns 0 for success, non-zero for failure.
4555 */
4556int
4557mpt2sas_base_hard_reset_handler(struct MPT2SAS_ADAPTER *ioc, int sleep_flag,
4558 enum reset_type type)
4559{
Kashyap, Desai7b936b02009-09-25 11:44:41 +05304560 int r;
Eric Moore635374e2009-03-09 01:21:12 -06004561 unsigned long flags;
4562
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304563 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06004564 __func__));
4565
Eric Moore3cb54692010-07-08 14:44:34 -06004566 if (ioc->pci_error_recovery) {
4567 printk(MPT2SAS_ERR_FMT "%s: pci error recovery reset\n",
4568 ioc->name, __func__);
4569 r = 0;
4570 goto out;
4571 }
4572
Kashyap, Desaifa7f3162009-09-23 17:26:58 +05304573 if (mpt2sas_fwfault_debug)
4574 mpt2sas_halt_firmware(ioc);
4575
Kashyap, Desaid2742132010-06-17 13:28:55 +05304576 /* TODO - What we really should be doing is pulling
4577 * out all the code associated with NO_SLEEP; its never used.
4578 * That is legacy code from mpt fusion driver, ported over.
4579 * I will leave this BUG_ON here for now till its been resolved.
4580 */
4581 BUG_ON(sleep_flag == NO_SLEEP);
4582
4583 /* wait for an active reset in progress to complete */
4584 if (!mutex_trylock(&ioc->reset_in_progress_mutex)) {
4585 do {
4586 ssleep(1);
4587 } while (ioc->shost_recovery == 1);
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304588 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit\n", ioc->name,
Kashyap, Desaid2742132010-06-17 13:28:55 +05304589 __func__));
4590 return ioc->ioc_reset_in_progress_status;
Eric Moore635374e2009-03-09 01:21:12 -06004591 }
Kashyap, Desaid2742132010-06-17 13:28:55 +05304592
4593 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
Eric Moore635374e2009-03-09 01:21:12 -06004594 ioc->shost_recovery = 1;
Eric Moore635374e2009-03-09 01:21:12 -06004595 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
4596
4597 _base_reset_handler(ioc, MPT2_IOC_PRE_RESET);
4598 _wait_for_commands_to_complete(ioc, sleep_flag);
4599 _base_mask_interrupts(ioc);
4600 r = _base_make_ioc_ready(ioc, sleep_flag, type);
4601 if (r)
4602 goto out;
4603 _base_reset_handler(ioc, MPT2_IOC_AFTER_RESET);
Kashyap, Desai42244892011-01-04 11:38:39 +05304604
4605 /* If this hard reset is called while port enable is active, then
4606 * there is no reason to call make_ioc_operational
4607 */
nagalakshmi.nandigama@lsi.com921cd802011-10-19 15:36:26 +05304608 if (ioc->is_driver_loading && ioc->port_enable_failed) {
4609 ioc->remove_host = 1;
Kashyap, Desai42244892011-01-04 11:38:39 +05304610 r = -EFAULT;
4611 goto out;
4612 }
Kashyap, Desai7b936b02009-09-25 11:44:41 +05304613 r = _base_make_ioc_operational(ioc, sleep_flag);
Eric Moore635374e2009-03-09 01:21:12 -06004614 if (!r)
4615 _base_reset_handler(ioc, MPT2_IOC_DONE_RESET);
4616 out:
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304617 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: %s\n",
Eric Moore635374e2009-03-09 01:21:12 -06004618 ioc->name, __func__, ((r == 0) ? "SUCCESS" : "FAILED")));
4619
4620 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
Kashyap, Desaid2742132010-06-17 13:28:55 +05304621 ioc->ioc_reset_in_progress_status = r;
Kashyap, Desai155dd4c2009-08-20 13:22:00 +05304622 ioc->shost_recovery = 0;
Eric Moore635374e2009-03-09 01:21:12 -06004623 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
Kashyap, Desaid2742132010-06-17 13:28:55 +05304624 mutex_unlock(&ioc->reset_in_progress_mutex);
Kashyap, Desaicd4e12e2009-08-20 13:20:54 +05304625
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304626 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit\n", ioc->name,
Kashyap, Desaid2742132010-06-17 13:28:55 +05304627 __func__));
Eric Moore635374e2009-03-09 01:21:12 -06004628 return r;
4629}