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EDAC: i7core, sb_edac: Don't return NOTIFY_BAD from mce_decoder callback
[linux/fpc-iii.git] / drivers / scsi / mpt3sas / mpt3sas_ctl.c
blob7d00f09666b6302f0c3ebf351cd237d6b822d083
1 /*
2 * Management Module Support for MPT (Message Passing Technology) based
3 * controllers
4 *
5 * This code is based on drivers/scsi/mpt3sas/mpt3sas_ctl.c
6 * Copyright (C) 2012-2014 LSI Corporation
7 * Copyright (C) 2013-2014 Avago Technologies
8 * (mailto: MPT-FusionLinux.pdl@avagotech.com)
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * NO WARRANTY
21 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
22 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
23 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
24 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
25 * solely responsible for determining the appropriateness of using and
26 * distributing the Program and assumes all risks associated with its
27 * exercise of rights under this Agreement, including but not limited to
28 * the risks and costs of program errors, damage to or loss of data,
29 * programs or equipment, and unavailability or interruption of operations.
30
31 * DISCLAIMER OF LIABILITY
32 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
33 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
35 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
36 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
37 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
38 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
39
40 * You should have received a copy of the GNU General Public License
41 * along with this program; if not, write to the Free Software
42 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
43 * USA.
44 */
45
46 #include <linux/kernel.h>
47 #include <linux/module.h>
48 #include <linux/errno.h>
49 #include <linux/init.h>
50 #include <linux/slab.h>
51 #include <linux/types.h>
52 #include <linux/pci.h>
53 #include <linux/delay.h>
54 #include <linux/compat.h>
55 #include <linux/poll.h>
56
57 #include <linux/io.h>
58 #include <linux/uaccess.h>
59
60 #include "mpt3sas_base.h"
61 #include "mpt3sas_ctl.h"
62
63
64 static struct fasync_struct *async_queue;
65 static DECLARE_WAIT_QUEUE_HEAD(ctl_poll_wait);
66
67
68 /**
69 * enum block_state - blocking state
70 * @NON_BLOCKING: non blocking
71 * @BLOCKING: blocking
72 *
73 * These states are for ioctls that need to wait for a response
74 * from firmware, so they probably require sleep.
75 */
76 enum block_state {
77 NON_BLOCKING,
78 BLOCKING,
79 };
80
81 /**
82 * _ctl_sas_device_find_by_handle - sas device search
83 * @ioc: per adapter object
84 * @handle: sas device handle (assigned by firmware)
85 * Context: Calling function should acquire ioc->sas_device_lock
86 *
87 * This searches for sas_device based on sas_address, then return sas_device
88 * object.
89 */
90 static struct _sas_device *
91 _ctl_sas_device_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
92 {
93 struct _sas_device *sas_device, *r;
94
95 r = NULL;
96 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
97 if (sas_device->handle != handle)
98 continue;
99 r = sas_device;
100 goto out;
101 }
102
103 out:
104 return r;
105 }
106
107 /**
108 * _ctl_display_some_debug - debug routine
109 * @ioc: per adapter object
110 * @smid: system request message index
111 * @calling_function_name: string pass from calling function
112 * @mpi_reply: reply message frame
113 * Context: none.
114 *
115 * Function for displaying debug info helpful when debugging issues
116 * in this module.
117 */
118 static void
119 _ctl_display_some_debug(struct MPT3SAS_ADAPTER *ioc, u16 smid,
120 char *calling_function_name, MPI2DefaultReply_t *mpi_reply)
121 {
122 Mpi2ConfigRequest_t *mpi_request;
123 char *desc = NULL;
124
125 if (!(ioc->logging_level & MPT_DEBUG_IOCTL))
126 return;
127
128 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
129 switch (mpi_request->Function) {
130 case MPI2_FUNCTION_SCSI_IO_REQUEST:
131 {
132 Mpi2SCSIIORequest_t *scsi_request =
133 (Mpi2SCSIIORequest_t *)mpi_request;
134
135 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
136 "scsi_io, cmd(0x%02x), cdb_len(%d)",
137 scsi_request->CDB.CDB32[0],
138 le16_to_cpu(scsi_request->IoFlags) & 0xF);
139 desc = ioc->tmp_string;
140 break;
141 }
142 case MPI2_FUNCTION_SCSI_TASK_MGMT:
143 desc = "task_mgmt";
144 break;
145 case MPI2_FUNCTION_IOC_INIT:
146 desc = "ioc_init";
147 break;
148 case MPI2_FUNCTION_IOC_FACTS:
149 desc = "ioc_facts";
150 break;
151 case MPI2_FUNCTION_CONFIG:
152 {
153 Mpi2ConfigRequest_t *config_request =
154 (Mpi2ConfigRequest_t *)mpi_request;
155
156 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
157 "config, type(0x%02x), ext_type(0x%02x), number(%d)",
158 (config_request->Header.PageType &
159 MPI2_CONFIG_PAGETYPE_MASK), config_request->ExtPageType,
160 config_request->Header.PageNumber);
161 desc = ioc->tmp_string;
162 break;
163 }
164 case MPI2_FUNCTION_PORT_FACTS:
165 desc = "port_facts";
166 break;
167 case MPI2_FUNCTION_PORT_ENABLE:
168 desc = "port_enable";
169 break;
170 case MPI2_FUNCTION_EVENT_NOTIFICATION:
171 desc = "event_notification";
172 break;
173 case MPI2_FUNCTION_FW_DOWNLOAD:
174 desc = "fw_download";
175 break;
176 case MPI2_FUNCTION_FW_UPLOAD:
177 desc = "fw_upload";
178 break;
179 case MPI2_FUNCTION_RAID_ACTION:
180 desc = "raid_action";
181 break;
182 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
183 {
184 Mpi2SCSIIORequest_t *scsi_request =
185 (Mpi2SCSIIORequest_t *)mpi_request;
186
187 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
188 "raid_pass, cmd(0x%02x), cdb_len(%d)",
189 scsi_request->CDB.CDB32[0],
190 le16_to_cpu(scsi_request->IoFlags) & 0xF);
191 desc = ioc->tmp_string;
192 break;
193 }
194 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
195 desc = "sas_iounit_cntl";
196 break;
197 case MPI2_FUNCTION_SATA_PASSTHROUGH:
198 desc = "sata_pass";
199 break;
200 case MPI2_FUNCTION_DIAG_BUFFER_POST:
201 desc = "diag_buffer_post";
202 break;
203 case MPI2_FUNCTION_DIAG_RELEASE:
204 desc = "diag_release";
205 break;
206 case MPI2_FUNCTION_SMP_PASSTHROUGH:
207 desc = "smp_passthrough";
208 break;
209 }
210
211 if (!desc)
212 return;
213
214 pr_info(MPT3SAS_FMT "%s: %s, smid(%d)\n",
215 ioc->name, calling_function_name, desc, smid);
216
217 if (!mpi_reply)
218 return;
219
220 if (mpi_reply->IOCStatus || mpi_reply->IOCLogInfo)
221 pr_info(MPT3SAS_FMT
222 "\tiocstatus(0x%04x), loginfo(0x%08x)\n",
223 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
224 le32_to_cpu(mpi_reply->IOCLogInfo));
225
226 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
227 mpi_request->Function ==
228 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
229 Mpi2SCSIIOReply_t *scsi_reply =
230 (Mpi2SCSIIOReply_t *)mpi_reply;
231 struct _sas_device *sas_device = NULL;
232 unsigned long flags;
233
234 spin_lock_irqsave(&ioc->sas_device_lock, flags);
235 sas_device = _ctl_sas_device_find_by_handle(ioc,
236 le16_to_cpu(scsi_reply->DevHandle));
237 if (sas_device) {
238 pr_warn(MPT3SAS_FMT "\tsas_address(0x%016llx), phy(%d)\n",
239 ioc->name, (unsigned long long)
240 sas_device->sas_address, sas_device->phy);
241 pr_warn(MPT3SAS_FMT
242 "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
243 ioc->name, (unsigned long long)
244 sas_device->enclosure_logical_id, sas_device->slot);
245 }
246 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
247 if (scsi_reply->SCSIState || scsi_reply->SCSIStatus)
248 pr_info(MPT3SAS_FMT
249 "\tscsi_state(0x%02x), scsi_status"
250 "(0x%02x)\n", ioc->name,
251 scsi_reply->SCSIState,
252 scsi_reply->SCSIStatus);
253 }
254 }
255
256 /**
257 * mpt3sas_ctl_done - ctl module completion routine
258 * @ioc: per adapter object
259 * @smid: system request message index
260 * @msix_index: MSIX table index supplied by the OS
261 * @reply: reply message frame(lower 32bit addr)
262 * Context: none.
263 *
264 * The callback handler when using ioc->ctl_cb_idx.
265 *
266 * Return 1 meaning mf should be freed from _base_interrupt
267 * 0 means the mf is freed from this function.
268 */
269 u8
270 mpt3sas_ctl_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
271 u32 reply)
272 {
273 MPI2DefaultReply_t *mpi_reply;
274 Mpi2SCSIIOReply_t *scsiio_reply;
275 const void *sense_data;
276 u32 sz;
277
278 if (ioc->ctl_cmds.status == MPT3_CMD_NOT_USED)
279 return 1;
280 if (ioc->ctl_cmds.smid != smid)
281 return 1;
282 ioc->ctl_cmds.status |= MPT3_CMD_COMPLETE;
283 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
284 if (mpi_reply) {
285 memcpy(ioc->ctl_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
286 ioc->ctl_cmds.status |= MPT3_CMD_REPLY_VALID;
287 /* get sense data */
288 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
289 mpi_reply->Function ==
290 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
291 scsiio_reply = (Mpi2SCSIIOReply_t *)mpi_reply;
292 if (scsiio_reply->SCSIState &
293 MPI2_SCSI_STATE_AUTOSENSE_VALID) {
294 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
295 le32_to_cpu(scsiio_reply->SenseCount));
296 sense_data = mpt3sas_base_get_sense_buffer(ioc,
297 smid);
298 memcpy(ioc->ctl_cmds.sense, sense_data, sz);
299 }
300 }
301 }
302 _ctl_display_some_debug(ioc, smid, "ctl_done", mpi_reply);
303 ioc->ctl_cmds.status &= ~MPT3_CMD_PENDING;
304 complete(&ioc->ctl_cmds.done);
305 return 1;
306 }
307
308 /**
309 * _ctl_check_event_type - determines when an event needs logging
310 * @ioc: per adapter object
311 * @event: firmware event
312 *
313 * The bitmask in ioc->event_type[] indicates which events should be
314 * be saved in the driver event_log. This bitmask is set by application.
315 *
316 * Returns 1 when event should be captured, or zero means no match.
317 */
318 static int
319 _ctl_check_event_type(struct MPT3SAS_ADAPTER *ioc, u16 event)
320 {
321 u16 i;
322 u32 desired_event;
323
324 if (event >= 128 || !event || !ioc->event_log)
325 return 0;
326
327 desired_event = (1 << (event % 32));
328 if (!desired_event)
329 desired_event = 1;
330 i = event / 32;
331 return desired_event & ioc->event_type[i];
332 }
333
334 /**
335 * mpt3sas_ctl_add_to_event_log - add event
336 * @ioc: per adapter object
337 * @mpi_reply: reply message frame
338 *
339 * Return nothing.
340 */
341 void
342 mpt3sas_ctl_add_to_event_log(struct MPT3SAS_ADAPTER *ioc,
343 Mpi2EventNotificationReply_t *mpi_reply)
344 {
345 struct MPT3_IOCTL_EVENTS *event_log;
346 u16 event;
347 int i;
348 u32 sz, event_data_sz;
349 u8 send_aen = 0;
350
351 if (!ioc->event_log)
352 return;
353
354 event = le16_to_cpu(mpi_reply->Event);
355
356 if (_ctl_check_event_type(ioc, event)) {
357
358 /* insert entry into circular event_log */
359 i = ioc->event_context % MPT3SAS_CTL_EVENT_LOG_SIZE;
360 event_log = ioc->event_log;
361 event_log[i].event = event;
362 event_log[i].context = ioc->event_context++;
363
364 event_data_sz = le16_to_cpu(mpi_reply->EventDataLength)*4;
365 sz = min_t(u32, event_data_sz, MPT3_EVENT_DATA_SIZE);
366 memset(event_log[i].data, 0, MPT3_EVENT_DATA_SIZE);
367 memcpy(event_log[i].data, mpi_reply->EventData, sz);
368 send_aen = 1;
369 }
370
371 /* This aen_event_read_flag flag is set until the
372 * application has read the event log.
373 * For MPI2_EVENT_LOG_ENTRY_ADDED, we always notify.
374 */
375 if (event == MPI2_EVENT_LOG_ENTRY_ADDED ||
376 (send_aen && !ioc->aen_event_read_flag)) {
377 ioc->aen_event_read_flag = 1;
378 wake_up_interruptible(&ctl_poll_wait);
379 if (async_queue)
380 kill_fasync(&async_queue, SIGIO, POLL_IN);
381 }
382 }
383
384 /**
385 * mpt3sas_ctl_event_callback - firmware event handler (called at ISR time)
386 * @ioc: per adapter object
387 * @msix_index: MSIX table index supplied by the OS
388 * @reply: reply message frame(lower 32bit addr)
389 * Context: interrupt.
390 *
391 * This function merely adds a new work task into ioc->firmware_event_thread.
392 * The tasks are worked from _firmware_event_work in user context.
393 *
394 * Return 1 meaning mf should be freed from _base_interrupt
395 * 0 means the mf is freed from this function.
396 */
397 u8
398 mpt3sas_ctl_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index,
399 u32 reply)
400 {
401 Mpi2EventNotificationReply_t *mpi_reply;
402
403 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
404 if (mpi_reply)
405 mpt3sas_ctl_add_to_event_log(ioc, mpi_reply);
406 return 1;
407 }
408
409 /**
410 * _ctl_verify_adapter - validates ioc_number passed from application
411 * @ioc: per adapter object
412 * @iocpp: The ioc pointer is returned in this.
413 * @mpi_version: will be MPI2_VERSION for mpt2ctl ioctl device &
414 * MPI25_VERSION | MPI26_VERSION for mpt3ctl ioctl device.
415 *
416 * Return (-1) means error, else ioc_number.
417 */
418 static int
419 _ctl_verify_adapter(int ioc_number, struct MPT3SAS_ADAPTER **iocpp,
420 int mpi_version)
421 {
422 struct MPT3SAS_ADAPTER *ioc;
423 int version = 0;
424 /* global ioc lock to protect controller on list operations */
425 spin_lock(&gioc_lock);
426 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
427 if (ioc->id != ioc_number)
428 continue;
429 /* Check whether this ioctl command is from right
430 * ioctl device or not, if not continue the search.
431 */
432 version = ioc->hba_mpi_version_belonged;
433 /* MPI25_VERSION and MPI26_VERSION uses same ioctl
434 * device.
435 */
436 if (mpi_version == (MPI25_VERSION | MPI26_VERSION)) {
437 if ((version == MPI25_VERSION) ||
438 (version == MPI26_VERSION))
439 goto out;
440 else
441 continue;
442 } else {
443 if (version != mpi_version)
444 continue;
445 }
446 out:
447 spin_unlock(&gioc_lock);
448 *iocpp = ioc;
449 return ioc_number;
450 }
451 spin_unlock(&gioc_lock);
452 *iocpp = NULL;
453 return -1;
454 }
455
456 /**
457 * mpt3sas_ctl_reset_handler - reset callback handler (for ctl)
458 * @ioc: per adapter object
459 * @reset_phase: phase
460 *
461 * The handler for doing any required cleanup or initialization.
462 *
463 * The reset phase can be MPT3_IOC_PRE_RESET, MPT3_IOC_AFTER_RESET,
464 * MPT3_IOC_DONE_RESET
465 */
466 void
467 mpt3sas_ctl_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase)
468 {
469 int i;
470 u8 issue_reset;
471
472 switch (reset_phase) {
473 case MPT3_IOC_PRE_RESET:
474 dtmprintk(ioc, pr_info(MPT3SAS_FMT
475 "%s: MPT3_IOC_PRE_RESET\n", ioc->name, __func__));
476 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
477 if (!(ioc->diag_buffer_status[i] &
478 MPT3_DIAG_BUFFER_IS_REGISTERED))
479 continue;
480 if ((ioc->diag_buffer_status[i] &
481 MPT3_DIAG_BUFFER_IS_RELEASED))
482 continue;
483 mpt3sas_send_diag_release(ioc, i, &issue_reset);
484 }
485 break;
486 case MPT3_IOC_AFTER_RESET:
487 dtmprintk(ioc, pr_info(MPT3SAS_FMT
488 "%s: MPT3_IOC_AFTER_RESET\n", ioc->name, __func__));
489 if (ioc->ctl_cmds.status & MPT3_CMD_PENDING) {
490 ioc->ctl_cmds.status |= MPT3_CMD_RESET;
491 mpt3sas_base_free_smid(ioc, ioc->ctl_cmds.smid);
492 complete(&ioc->ctl_cmds.done);
493 }
494 break;
495 case MPT3_IOC_DONE_RESET:
496 dtmprintk(ioc, pr_info(MPT3SAS_FMT
497 "%s: MPT3_IOC_DONE_RESET\n", ioc->name, __func__));
498
499 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
500 if (!(ioc->diag_buffer_status[i] &
501 MPT3_DIAG_BUFFER_IS_REGISTERED))
502 continue;
503 if ((ioc->diag_buffer_status[i] &
504 MPT3_DIAG_BUFFER_IS_RELEASED))
505 continue;
506 ioc->diag_buffer_status[i] |=
507 MPT3_DIAG_BUFFER_IS_DIAG_RESET;
508 }
509 break;
510 }
511 }
512
513 /**
514 * _ctl_fasync -
515 * @fd -
516 * @filep -
517 * @mode -
518 *
519 * Called when application request fasyn callback handler.
520 */
521 int
522 _ctl_fasync(int fd, struct file *filep, int mode)
523 {
524 return fasync_helper(fd, filep, mode, &async_queue);
525 }
526
527 /**
528 * _ctl_poll -
529 * @file -
530 * @wait -
531 *
532 */
533 unsigned int
534 _ctl_poll(struct file *filep, poll_table *wait)
535 {
536 struct MPT3SAS_ADAPTER *ioc;
537
538 poll_wait(filep, &ctl_poll_wait, wait);
539
540 /* global ioc lock to protect controller on list operations */
541 spin_lock(&gioc_lock);
542 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
543 if (ioc->aen_event_read_flag) {
544 spin_unlock(&gioc_lock);
545 return POLLIN | POLLRDNORM;
546 }
547 }
548 spin_unlock(&gioc_lock);
549 return 0;
550 }
551
552 /**
553 * _ctl_set_task_mid - assign an active smid to tm request
554 * @ioc: per adapter object
555 * @karg - (struct mpt3_ioctl_command)
556 * @tm_request - pointer to mf from user space
557 *
558 * Returns 0 when an smid if found, else fail.
559 * during failure, the reply frame is filled.
560 */
561 static int
562 _ctl_set_task_mid(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command *karg,
563 Mpi2SCSITaskManagementRequest_t *tm_request)
564 {
565 u8 found = 0;
566 u16 i;
567 u16 handle;
568 struct scsi_cmnd *scmd;
569 struct MPT3SAS_DEVICE *priv_data;
570 unsigned long flags;
571 Mpi2SCSITaskManagementReply_t *tm_reply;
572 u32 sz;
573 u32 lun;
574 char *desc = NULL;
575
576 if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
577 desc = "abort_task";
578 else if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK)
579 desc = "query_task";
580 else
581 return 0;
582
583 lun = scsilun_to_int((struct scsi_lun *)tm_request->LUN);
584
585 handle = le16_to_cpu(tm_request->DevHandle);
586 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
587 for (i = ioc->scsiio_depth; i && !found; i--) {
588 scmd = ioc->scsi_lookup[i - 1].scmd;
589 if (scmd == NULL || scmd->device == NULL ||
590 scmd->device->hostdata == NULL)
591 continue;
592 if (lun != scmd->device->lun)
593 continue;
594 priv_data = scmd->device->hostdata;
595 if (priv_data->sas_target == NULL)
596 continue;
597 if (priv_data->sas_target->handle != handle)
598 continue;
599 tm_request->TaskMID = cpu_to_le16(ioc->scsi_lookup[i - 1].smid);
600 found = 1;
601 }
602 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
603
604 if (!found) {
605 dctlprintk(ioc, pr_info(MPT3SAS_FMT
606 "%s: handle(0x%04x), lun(%d), no active mid!!\n",
607 ioc->name,
608 desc, le16_to_cpu(tm_request->DevHandle), lun));
609 tm_reply = ioc->ctl_cmds.reply;
610 tm_reply->DevHandle = tm_request->DevHandle;
611 tm_reply->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
612 tm_reply->TaskType = tm_request->TaskType;
613 tm_reply->MsgLength = sizeof(Mpi2SCSITaskManagementReply_t)/4;
614 tm_reply->VP_ID = tm_request->VP_ID;
615 tm_reply->VF_ID = tm_request->VF_ID;
616 sz = min_t(u32, karg->max_reply_bytes, ioc->reply_sz);
617 if (copy_to_user(karg->reply_frame_buf_ptr, ioc->ctl_cmds.reply,
618 sz))
619 pr_err("failure at %s:%d/%s()!\n", __FILE__,
620 __LINE__, __func__);
621 return 1;
622 }
623
624 dctlprintk(ioc, pr_info(MPT3SAS_FMT
625 "%s: handle(0x%04x), lun(%d), task_mid(%d)\n", ioc->name,
626 desc, le16_to_cpu(tm_request->DevHandle), lun,
627 le16_to_cpu(tm_request->TaskMID)));
628 return 0;
629 }
630
631 /**
632 * _ctl_do_mpt_command - main handler for MPT3COMMAND opcode
633 * @ioc: per adapter object
634 * @karg - (struct mpt3_ioctl_command)
635 * @mf - pointer to mf in user space
636 */
637 static long
638 _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
639 void __user *mf)
640 {
641 MPI2RequestHeader_t *mpi_request = NULL, *request;
642 MPI2DefaultReply_t *mpi_reply;
643 u32 ioc_state;
644 u16 ioc_status;
645 u16 smid;
646 unsigned long timeout, timeleft;
647 u8 issue_reset;
648 u32 sz;
649 void *psge;
650 void *data_out = NULL;
651 dma_addr_t data_out_dma = 0;
652 size_t data_out_sz = 0;
653 void *data_in = NULL;
654 dma_addr_t data_in_dma = 0;
655 size_t data_in_sz = 0;
656 long ret;
657 u16 wait_state_count;
658
659 issue_reset = 0;
660
661 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
662 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
663 ioc->name, __func__);
664 ret = -EAGAIN;
665 goto out;
666 }
667
668 wait_state_count = 0;
669 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
670 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
671 if (wait_state_count++ == 10) {
672 pr_err(MPT3SAS_FMT
673 "%s: failed due to ioc not operational\n",
674 ioc->name, __func__);
675 ret = -EFAULT;
676 goto out;
677 }
678 ssleep(1);
679 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
680 pr_info(MPT3SAS_FMT
681 "%s: waiting for operational state(count=%d)\n",
682 ioc->name,
683 __func__, wait_state_count);
684 }
685 if (wait_state_count)
686 pr_info(MPT3SAS_FMT "%s: ioc is operational\n",
687 ioc->name, __func__);
688
689 mpi_request = kzalloc(ioc->request_sz, GFP_KERNEL);
690 if (!mpi_request) {
691 pr_err(MPT3SAS_FMT
692 "%s: failed obtaining a memory for mpi_request\n",
693 ioc->name, __func__);
694 ret = -ENOMEM;
695 goto out;
696 }
697
698 /* Check for overflow and wraparound */
699 if (karg.data_sge_offset * 4 > ioc->request_sz ||
700 karg.data_sge_offset > (UINT_MAX / 4)) {
701 ret = -EINVAL;
702 goto out;
703 }
704
705 /* copy in request message frame from user */
706 if (copy_from_user(mpi_request, mf, karg.data_sge_offset*4)) {
707 pr_err("failure at %s:%d/%s()!\n", __FILE__, __LINE__,
708 __func__);
709 ret = -EFAULT;
710 goto out;
711 }
712
713 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
714 smid = mpt3sas_base_get_smid_hpr(ioc, ioc->ctl_cb_idx);
715 if (!smid) {
716 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
717 ioc->name, __func__);
718 ret = -EAGAIN;
719 goto out;
720 }
721 } else {
722
723 smid = mpt3sas_base_get_smid_scsiio(ioc, ioc->ctl_cb_idx, NULL);
724 if (!smid) {
725 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
726 ioc->name, __func__);
727 ret = -EAGAIN;
728 goto out;
729 }
730 }
731
732 ret = 0;
733 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
734 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
735 request = mpt3sas_base_get_msg_frame(ioc, smid);
736 memcpy(request, mpi_request, karg.data_sge_offset*4);
737 ioc->ctl_cmds.smid = smid;
738 data_out_sz = karg.data_out_size;
739 data_in_sz = karg.data_in_size;
740
741 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
742 mpi_request->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
743 if (!le16_to_cpu(mpi_request->FunctionDependent1) ||
744 le16_to_cpu(mpi_request->FunctionDependent1) >
745 ioc->facts.MaxDevHandle) {
746 ret = -EINVAL;
747 mpt3sas_base_free_smid(ioc, smid);
748 goto out;
749 }
750 }
751
752 /* obtain dma-able memory for data transfer */
753 if (data_out_sz) /* WRITE */ {
754 data_out = pci_alloc_consistent(ioc->pdev, data_out_sz,
755 &data_out_dma);
756 if (!data_out) {
757 pr_err("failure at %s:%d/%s()!\n", __FILE__,
758 __LINE__, __func__);
759 ret = -ENOMEM;
760 mpt3sas_base_free_smid(ioc, smid);
761 goto out;
762 }
763 if (copy_from_user(data_out, karg.data_out_buf_ptr,
764 data_out_sz)) {
765 pr_err("failure at %s:%d/%s()!\n", __FILE__,
766 __LINE__, __func__);
767 ret = -EFAULT;
768 mpt3sas_base_free_smid(ioc, smid);
769 goto out;
770 }
771 }
772
773 if (data_in_sz) /* READ */ {
774 data_in = pci_alloc_consistent(ioc->pdev, data_in_sz,
775 &data_in_dma);
776 if (!data_in) {
777 pr_err("failure at %s:%d/%s()!\n", __FILE__,
778 __LINE__, __func__);
779 ret = -ENOMEM;
780 mpt3sas_base_free_smid(ioc, smid);
781 goto out;
782 }
783 }
784
785 psge = (void *)request + (karg.data_sge_offset*4);
786
787 /* send command to firmware */
788 _ctl_display_some_debug(ioc, smid, "ctl_request", NULL);
789
790 init_completion(&ioc->ctl_cmds.done);
791 switch (mpi_request->Function) {
792 case MPI2_FUNCTION_SCSI_IO_REQUEST:
793 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
794 {
795 Mpi2SCSIIORequest_t *scsiio_request =
796 (Mpi2SCSIIORequest_t *)request;
797 scsiio_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
798 scsiio_request->SenseBufferLowAddress =
799 mpt3sas_base_get_sense_buffer_dma(ioc, smid);
800 memset(ioc->ctl_cmds.sense, 0, SCSI_SENSE_BUFFERSIZE);
801 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
802 data_in_dma, data_in_sz);
803
804 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)
805 mpt3sas_base_put_smid_scsi_io(ioc, smid,
806 le16_to_cpu(mpi_request->FunctionDependent1));
807 else
808 mpt3sas_base_put_smid_default(ioc, smid);
809 break;
810 }
811 case MPI2_FUNCTION_SCSI_TASK_MGMT:
812 {
813 Mpi2SCSITaskManagementRequest_t *tm_request =
814 (Mpi2SCSITaskManagementRequest_t *)request;
815
816 dtmprintk(ioc, pr_info(MPT3SAS_FMT
817 "TASK_MGMT: handle(0x%04x), task_type(0x%02x)\n",
818 ioc->name,
819 le16_to_cpu(tm_request->DevHandle), tm_request->TaskType));
820
821 if (tm_request->TaskType ==
822 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK ||
823 tm_request->TaskType ==
824 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) {
825 if (_ctl_set_task_mid(ioc, &karg, tm_request)) {
826 mpt3sas_base_free_smid(ioc, smid);
827 goto out;
828 }
829 }
830
831 mpt3sas_scsih_set_tm_flag(ioc, le16_to_cpu(
832 tm_request->DevHandle));
833 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
834 data_in_dma, data_in_sz);
835 mpt3sas_base_put_smid_hi_priority(ioc, smid, 0);
836 break;
837 }
838 case MPI2_FUNCTION_SMP_PASSTHROUGH:
839 {
840 Mpi2SmpPassthroughRequest_t *smp_request =
841 (Mpi2SmpPassthroughRequest_t *)mpi_request;
842 u8 *data;
843
844 /* ioc determines which port to use */
845 smp_request->PhysicalPort = 0xFF;
846 if (smp_request->PassthroughFlags &
847 MPI2_SMP_PT_REQ_PT_FLAGS_IMMEDIATE)
848 data = (u8 *)&smp_request->SGL;
849 else {
850 if (unlikely(data_out == NULL)) {
851 pr_err("failure at %s:%d/%s()!\n",
852 __FILE__, __LINE__, __func__);
853 mpt3sas_base_free_smid(ioc, smid);
854 ret = -EINVAL;
855 goto out;
856 }
857 data = data_out;
858 }
859
860 if (data[1] == 0x91 && (data[10] == 1 || data[10] == 2)) {
861 ioc->ioc_link_reset_in_progress = 1;
862 ioc->ignore_loginfos = 1;
863 }
864 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
865 data_in_sz);
866 mpt3sas_base_put_smid_default(ioc, smid);
867 break;
868 }
869 case MPI2_FUNCTION_SATA_PASSTHROUGH:
870 case MPI2_FUNCTION_FW_DOWNLOAD:
871 case MPI2_FUNCTION_FW_UPLOAD:
872 {
873 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
874 data_in_sz);
875 mpt3sas_base_put_smid_default(ioc, smid);
876 break;
877 }
878 case MPI2_FUNCTION_TOOLBOX:
879 {
880 Mpi2ToolboxCleanRequest_t *toolbox_request =
881 (Mpi2ToolboxCleanRequest_t *)mpi_request;
882
883 if (toolbox_request->Tool == MPI2_TOOLBOX_DIAGNOSTIC_CLI_TOOL) {
884 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
885 data_in_dma, data_in_sz);
886 } else {
887 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
888 data_in_dma, data_in_sz);
889 }
890 mpt3sas_base_put_smid_default(ioc, smid);
891 break;
892 }
893 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
894 {
895 Mpi2SasIoUnitControlRequest_t *sasiounit_request =
896 (Mpi2SasIoUnitControlRequest_t *)mpi_request;
897
898 if (sasiounit_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET
899 || sasiounit_request->Operation ==
900 MPI2_SAS_OP_PHY_LINK_RESET) {
901 ioc->ioc_link_reset_in_progress = 1;
902 ioc->ignore_loginfos = 1;
903 }
904 /* drop to default case for posting the request */
905 }
906 default:
907 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
908 data_in_dma, data_in_sz);
909 mpt3sas_base_put_smid_default(ioc, smid);
910 break;
911 }
912
913 if (karg.timeout < MPT3_IOCTL_DEFAULT_TIMEOUT)
914 timeout = MPT3_IOCTL_DEFAULT_TIMEOUT;
915 else
916 timeout = karg.timeout;
917 timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
918 timeout*HZ);
919 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
920 Mpi2SCSITaskManagementRequest_t *tm_request =
921 (Mpi2SCSITaskManagementRequest_t *)mpi_request;
922 mpt3sas_scsih_clear_tm_flag(ioc, le16_to_cpu(
923 tm_request->DevHandle));
924 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
925 } else if ((mpi_request->Function == MPI2_FUNCTION_SMP_PASSTHROUGH ||
926 mpi_request->Function == MPI2_FUNCTION_SAS_IO_UNIT_CONTROL) &&
927 ioc->ioc_link_reset_in_progress) {
928 ioc->ioc_link_reset_in_progress = 0;
929 ioc->ignore_loginfos = 0;
930 }
931 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
932 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
933 __func__);
934 _debug_dump_mf(mpi_request, karg.data_sge_offset);
935 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
936 issue_reset = 1;
937 goto issue_host_reset;
938 }
939
940 mpi_reply = ioc->ctl_cmds.reply;
941 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
942
943 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_TASK_MGMT &&
944 (ioc->logging_level & MPT_DEBUG_TM)) {
945 Mpi2SCSITaskManagementReply_t *tm_reply =
946 (Mpi2SCSITaskManagementReply_t *)mpi_reply;
947
948 pr_info(MPT3SAS_FMT "TASK_MGMT: " \
949 "IOCStatus(0x%04x), IOCLogInfo(0x%08x), "
950 "TerminationCount(0x%08x)\n", ioc->name,
951 le16_to_cpu(tm_reply->IOCStatus),
952 le32_to_cpu(tm_reply->IOCLogInfo),
953 le32_to_cpu(tm_reply->TerminationCount));
954 }
955
956 /* copy out xdata to user */
957 if (data_in_sz) {
958 if (copy_to_user(karg.data_in_buf_ptr, data_in,
959 data_in_sz)) {
960 pr_err("failure at %s:%d/%s()!\n", __FILE__,
961 __LINE__, __func__);
962 ret = -ENODATA;
963 goto out;
964 }
965 }
966
967 /* copy out reply message frame to user */
968 if (karg.max_reply_bytes) {
969 sz = min_t(u32, karg.max_reply_bytes, ioc->reply_sz);
970 if (copy_to_user(karg.reply_frame_buf_ptr, ioc->ctl_cmds.reply,
971 sz)) {
972 pr_err("failure at %s:%d/%s()!\n", __FILE__,
973 __LINE__, __func__);
974 ret = -ENODATA;
975 goto out;
976 }
977 }
978
979 /* copy out sense to user */
980 if (karg.max_sense_bytes && (mpi_request->Function ==
981 MPI2_FUNCTION_SCSI_IO_REQUEST || mpi_request->Function ==
982 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) {
983 sz = min_t(u32, karg.max_sense_bytes, SCSI_SENSE_BUFFERSIZE);
984 if (copy_to_user(karg.sense_data_ptr, ioc->ctl_cmds.sense,
985 sz)) {
986 pr_err("failure at %s:%d/%s()!\n", __FILE__,
987 __LINE__, __func__);
988 ret = -ENODATA;
989 goto out;
990 }
991 }
992
993 issue_host_reset:
994 if (issue_reset) {
995 ret = -ENODATA;
996 if ((mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
997 mpi_request->Function ==
998 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
999 mpi_request->Function == MPI2_FUNCTION_SATA_PASSTHROUGH)) {
1000 pr_info(MPT3SAS_FMT "issue target reset: handle = (0x%04x)\n",
1001 ioc->name,
1002 le16_to_cpu(mpi_request->FunctionDependent1));
1003 mpt3sas_halt_firmware(ioc);
1004 mpt3sas_scsih_issue_tm(ioc,
1005 le16_to_cpu(mpi_request->FunctionDependent1), 0, 0,
1006 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 30,
1007 TM_MUTEX_ON);
1008 } else
1009 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1010 FORCE_BIG_HAMMER);
1011 }
1012
1013 out:
1014
1015 /* free memory associated with sg buffers */
1016 if (data_in)
1017 pci_free_consistent(ioc->pdev, data_in_sz, data_in,
1018 data_in_dma);
1019
1020 if (data_out)
1021 pci_free_consistent(ioc->pdev, data_out_sz, data_out,
1022 data_out_dma);
1023
1024 kfree(mpi_request);
1025 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1026 return ret;
1027 }
1028
1029 /**
1030 * _ctl_getiocinfo - main handler for MPT3IOCINFO opcode
1031 * @ioc: per adapter object
1032 * @arg - user space buffer containing ioctl content
1033 */
1034 static long
1035 _ctl_getiocinfo(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1036 {
1037 struct mpt3_ioctl_iocinfo karg;
1038
1039 if (copy_from_user(&karg, arg, sizeof(karg))) {
1040 pr_err("failure at %s:%d/%s()!\n",
1041 __FILE__, __LINE__, __func__);
1042 return -EFAULT;
1043 }
1044
1045 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1046 __func__));
1047
1048 memset(&karg, 0 , sizeof(karg));
1049 if (ioc->pfacts)
1050 karg.port_number = ioc->pfacts[0].PortNumber;
1051 karg.hw_rev = ioc->pdev->revision;
1052 karg.pci_id = ioc->pdev->device;
1053 karg.subsystem_device = ioc->pdev->subsystem_device;
1054 karg.subsystem_vendor = ioc->pdev->subsystem_vendor;
1055 karg.pci_information.u.bits.bus = ioc->pdev->bus->number;
1056 karg.pci_information.u.bits.device = PCI_SLOT(ioc->pdev->devfn);
1057 karg.pci_information.u.bits.function = PCI_FUNC(ioc->pdev->devfn);
1058 karg.pci_information.segment_id = pci_domain_nr(ioc->pdev->bus);
1059 karg.firmware_version = ioc->facts.FWVersion.Word;
1060 strcpy(karg.driver_version, ioc->driver_name);
1061 strcat(karg.driver_version, "-");
1062 switch (ioc->hba_mpi_version_belonged) {
1063 case MPI2_VERSION:
1064 if (ioc->is_warpdrive)
1065 karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2_SSS6200;
1066 else
1067 karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2;
1068 strcat(karg.driver_version, MPT2SAS_DRIVER_VERSION);
1069 break;
1070 case MPI25_VERSION:
1071 case MPI26_VERSION:
1072 karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS3;
1073 strcat(karg.driver_version, MPT3SAS_DRIVER_VERSION);
1074 break;
1075 }
1076 karg.bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
1077
1078 if (copy_to_user(arg, &karg, sizeof(karg))) {
1079 pr_err("failure at %s:%d/%s()!\n",
1080 __FILE__, __LINE__, __func__);
1081 return -EFAULT;
1082 }
1083 return 0;
1084 }
1085
1086 /**
1087 * _ctl_eventquery - main handler for MPT3EVENTQUERY opcode
1088 * @ioc: per adapter object
1089 * @arg - user space buffer containing ioctl content
1090 */
1091 static long
1092 _ctl_eventquery(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1093 {
1094 struct mpt3_ioctl_eventquery karg;
1095
1096 if (copy_from_user(&karg, arg, sizeof(karg))) {
1097 pr_err("failure at %s:%d/%s()!\n",
1098 __FILE__, __LINE__, __func__);
1099 return -EFAULT;
1100 }
1101
1102 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1103 __func__));
1104
1105 karg.event_entries = MPT3SAS_CTL_EVENT_LOG_SIZE;
1106 memcpy(karg.event_types, ioc->event_type,
1107 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1108
1109 if (copy_to_user(arg, &karg, sizeof(karg))) {
1110 pr_err("failure at %s:%d/%s()!\n",
1111 __FILE__, __LINE__, __func__);
1112 return -EFAULT;
1113 }
1114 return 0;
1115 }
1116
1117 /**
1118 * _ctl_eventenable - main handler for MPT3EVENTENABLE opcode
1119 * @ioc: per adapter object
1120 * @arg - user space buffer containing ioctl content
1121 */
1122 static long
1123 _ctl_eventenable(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1124 {
1125 struct mpt3_ioctl_eventenable karg;
1126
1127 if (copy_from_user(&karg, arg, sizeof(karg))) {
1128 pr_err("failure at %s:%d/%s()!\n",
1129 __FILE__, __LINE__, __func__);
1130 return -EFAULT;
1131 }
1132
1133 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1134 __func__));
1135
1136 memcpy(ioc->event_type, karg.event_types,
1137 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1138 mpt3sas_base_validate_event_type(ioc, ioc->event_type);
1139
1140 if (ioc->event_log)
1141 return 0;
1142 /* initialize event_log */
1143 ioc->event_context = 0;
1144 ioc->aen_event_read_flag = 0;
1145 ioc->event_log = kcalloc(MPT3SAS_CTL_EVENT_LOG_SIZE,
1146 sizeof(struct MPT3_IOCTL_EVENTS), GFP_KERNEL);
1147 if (!ioc->event_log) {
1148 pr_err("failure at %s:%d/%s()!\n",
1149 __FILE__, __LINE__, __func__);
1150 return -ENOMEM;
1151 }
1152 return 0;
1153 }
1154
1155 /**
1156 * _ctl_eventreport - main handler for MPT3EVENTREPORT opcode
1157 * @ioc: per adapter object
1158 * @arg - user space buffer containing ioctl content
1159 */
1160 static long
1161 _ctl_eventreport(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1162 {
1163 struct mpt3_ioctl_eventreport karg;
1164 u32 number_bytes, max_events, max;
1165 struct mpt3_ioctl_eventreport __user *uarg = arg;
1166
1167 if (copy_from_user(&karg, arg, sizeof(karg))) {
1168 pr_err("failure at %s:%d/%s()!\n",
1169 __FILE__, __LINE__, __func__);
1170 return -EFAULT;
1171 }
1172
1173 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1174 __func__));
1175
1176 number_bytes = karg.hdr.max_data_size -
1177 sizeof(struct mpt3_ioctl_header);
1178 max_events = number_bytes/sizeof(struct MPT3_IOCTL_EVENTS);
1179 max = min_t(u32, MPT3SAS_CTL_EVENT_LOG_SIZE, max_events);
1180
1181 /* If fewer than 1 event is requested, there must have
1182 * been some type of error.
1183 */
1184 if (!max || !ioc->event_log)
1185 return -ENODATA;
1186
1187 number_bytes = max * sizeof(struct MPT3_IOCTL_EVENTS);
1188 if (copy_to_user(uarg->event_data, ioc->event_log, number_bytes)) {
1189 pr_err("failure at %s:%d/%s()!\n",
1190 __FILE__, __LINE__, __func__);
1191 return -EFAULT;
1192 }
1193
1194 /* reset flag so SIGIO can restart */
1195 ioc->aen_event_read_flag = 0;
1196 return 0;
1197 }
1198
1199 /**
1200 * _ctl_do_reset - main handler for MPT3HARDRESET opcode
1201 * @ioc: per adapter object
1202 * @arg - user space buffer containing ioctl content
1203 */
1204 static long
1205 _ctl_do_reset(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1206 {
1207 struct mpt3_ioctl_diag_reset karg;
1208 int retval;
1209
1210 if (copy_from_user(&karg, arg, sizeof(karg))) {
1211 pr_err("failure at %s:%d/%s()!\n",
1212 __FILE__, __LINE__, __func__);
1213 return -EFAULT;
1214 }
1215
1216 if (ioc->shost_recovery || ioc->pci_error_recovery ||
1217 ioc->is_driver_loading)
1218 return -EAGAIN;
1219
1220 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1221 __func__));
1222
1223 retval = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1224 FORCE_BIG_HAMMER);
1225 pr_info(MPT3SAS_FMT "host reset: %s\n",
1226 ioc->name, ((!retval) ? "SUCCESS" : "FAILED"));
1227 return 0;
1228 }
1229
1230 /**
1231 * _ctl_btdh_search_sas_device - searching for sas device
1232 * @ioc: per adapter object
1233 * @btdh: btdh ioctl payload
1234 */
1235 static int
1236 _ctl_btdh_search_sas_device(struct MPT3SAS_ADAPTER *ioc,
1237 struct mpt3_ioctl_btdh_mapping *btdh)
1238 {
1239 struct _sas_device *sas_device;
1240 unsigned long flags;
1241 int rc = 0;
1242
1243 if (list_empty(&ioc->sas_device_list))
1244 return rc;
1245
1246 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1247 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
1248 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1249 btdh->handle == sas_device->handle) {
1250 btdh->bus = sas_device->channel;
1251 btdh->id = sas_device->id;
1252 rc = 1;
1253 goto out;
1254 } else if (btdh->bus == sas_device->channel && btdh->id ==
1255 sas_device->id && btdh->handle == 0xFFFF) {
1256 btdh->handle = sas_device->handle;
1257 rc = 1;
1258 goto out;
1259 }
1260 }
1261 out:
1262 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1263 return rc;
1264 }
1265
1266 /**
1267 * _ctl_btdh_search_raid_device - searching for raid device
1268 * @ioc: per adapter object
1269 * @btdh: btdh ioctl payload
1270 */
1271 static int
1272 _ctl_btdh_search_raid_device(struct MPT3SAS_ADAPTER *ioc,
1273 struct mpt3_ioctl_btdh_mapping *btdh)
1274 {
1275 struct _raid_device *raid_device;
1276 unsigned long flags;
1277 int rc = 0;
1278
1279 if (list_empty(&ioc->raid_device_list))
1280 return rc;
1281
1282 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1283 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
1284 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1285 btdh->handle == raid_device->handle) {
1286 btdh->bus = raid_device->channel;
1287 btdh->id = raid_device->id;
1288 rc = 1;
1289 goto out;
1290 } else if (btdh->bus == raid_device->channel && btdh->id ==
1291 raid_device->id && btdh->handle == 0xFFFF) {
1292 btdh->handle = raid_device->handle;
1293 rc = 1;
1294 goto out;
1295 }
1296 }
1297 out:
1298 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1299 return rc;
1300 }
1301
1302 /**
1303 * _ctl_btdh_mapping - main handler for MPT3BTDHMAPPING opcode
1304 * @ioc: per adapter object
1305 * @arg - user space buffer containing ioctl content
1306 */
1307 static long
1308 _ctl_btdh_mapping(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1309 {
1310 struct mpt3_ioctl_btdh_mapping karg;
1311 int rc;
1312
1313 if (copy_from_user(&karg, arg, sizeof(karg))) {
1314 pr_err("failure at %s:%d/%s()!\n",
1315 __FILE__, __LINE__, __func__);
1316 return -EFAULT;
1317 }
1318
1319 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1320 __func__));
1321
1322 rc = _ctl_btdh_search_sas_device(ioc, &karg);
1323 if (!rc)
1324 _ctl_btdh_search_raid_device(ioc, &karg);
1325
1326 if (copy_to_user(arg, &karg, sizeof(karg))) {
1327 pr_err("failure at %s:%d/%s()!\n",
1328 __FILE__, __LINE__, __func__);
1329 return -EFAULT;
1330 }
1331 return 0;
1332 }
1333
1334 /**
1335 * _ctl_diag_capability - return diag buffer capability
1336 * @ioc: per adapter object
1337 * @buffer_type: specifies either TRACE, SNAPSHOT, or EXTENDED
1338 *
1339 * returns 1 when diag buffer support is enabled in firmware
1340 */
1341 static u8
1342 _ctl_diag_capability(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type)
1343 {
1344 u8 rc = 0;
1345
1346 switch (buffer_type) {
1347 case MPI2_DIAG_BUF_TYPE_TRACE:
1348 if (ioc->facts.IOCCapabilities &
1349 MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER)
1350 rc = 1;
1351 break;
1352 case MPI2_DIAG_BUF_TYPE_SNAPSHOT:
1353 if (ioc->facts.IOCCapabilities &
1354 MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER)
1355 rc = 1;
1356 break;
1357 case MPI2_DIAG_BUF_TYPE_EXTENDED:
1358 if (ioc->facts.IOCCapabilities &
1359 MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER)
1360 rc = 1;
1361 }
1362
1363 return rc;
1364 }
1365
1366
1367 /**
1368 * _ctl_diag_register_2 - wrapper for registering diag buffer support
1369 * @ioc: per adapter object
1370 * @diag_register: the diag_register struct passed in from user space
1371 *
1372 */
1373 static long
1374 _ctl_diag_register_2(struct MPT3SAS_ADAPTER *ioc,
1375 struct mpt3_diag_register *diag_register)
1376 {
1377 int rc, i;
1378 void *request_data = NULL;
1379 dma_addr_t request_data_dma;
1380 u32 request_data_sz = 0;
1381 Mpi2DiagBufferPostRequest_t *mpi_request;
1382 Mpi2DiagBufferPostReply_t *mpi_reply;
1383 u8 buffer_type;
1384 unsigned long timeleft;
1385 u16 smid;
1386 u16 ioc_status;
1387 u32 ioc_state;
1388 u8 issue_reset = 0;
1389
1390 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1391 __func__));
1392
1393 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1394 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1395 pr_err(MPT3SAS_FMT
1396 "%s: failed due to ioc not operational\n",
1397 ioc->name, __func__);
1398 rc = -EAGAIN;
1399 goto out;
1400 }
1401
1402 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
1403 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
1404 ioc->name, __func__);
1405 rc = -EAGAIN;
1406 goto out;
1407 }
1408
1409 buffer_type = diag_register->buffer_type;
1410 if (!_ctl_diag_capability(ioc, buffer_type)) {
1411 pr_err(MPT3SAS_FMT
1412 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1413 ioc->name, __func__, buffer_type);
1414 return -EPERM;
1415 }
1416
1417 if (ioc->diag_buffer_status[buffer_type] &
1418 MPT3_DIAG_BUFFER_IS_REGISTERED) {
1419 pr_err(MPT3SAS_FMT
1420 "%s: already has a registered buffer for buffer_type(0x%02x)\n",
1421 ioc->name, __func__,
1422 buffer_type);
1423 return -EINVAL;
1424 }
1425
1426 if (diag_register->requested_buffer_size % 4) {
1427 pr_err(MPT3SAS_FMT
1428 "%s: the requested_buffer_size is not 4 byte aligned\n",
1429 ioc->name, __func__);
1430 return -EINVAL;
1431 }
1432
1433 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1434 if (!smid) {
1435 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
1436 ioc->name, __func__);
1437 rc = -EAGAIN;
1438 goto out;
1439 }
1440
1441 rc = 0;
1442 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
1443 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1444 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1445 ioc->ctl_cmds.smid = smid;
1446
1447 request_data = ioc->diag_buffer[buffer_type];
1448 request_data_sz = diag_register->requested_buffer_size;
1449 ioc->unique_id[buffer_type] = diag_register->unique_id;
1450 ioc->diag_buffer_status[buffer_type] = 0;
1451 memcpy(ioc->product_specific[buffer_type],
1452 diag_register->product_specific, MPT3_PRODUCT_SPECIFIC_DWORDS);
1453 ioc->diagnostic_flags[buffer_type] = diag_register->diagnostic_flags;
1454
1455 if (request_data) {
1456 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1457 if (request_data_sz != ioc->diag_buffer_sz[buffer_type]) {
1458 pci_free_consistent(ioc->pdev,
1459 ioc->diag_buffer_sz[buffer_type],
1460 request_data, request_data_dma);
1461 request_data = NULL;
1462 }
1463 }
1464
1465 if (request_data == NULL) {
1466 ioc->diag_buffer_sz[buffer_type] = 0;
1467 ioc->diag_buffer_dma[buffer_type] = 0;
1468 request_data = pci_alloc_consistent(
1469 ioc->pdev, request_data_sz, &request_data_dma);
1470 if (request_data == NULL) {
1471 pr_err(MPT3SAS_FMT "%s: failed allocating memory" \
1472 " for diag buffers, requested size(%d)\n",
1473 ioc->name, __func__, request_data_sz);
1474 mpt3sas_base_free_smid(ioc, smid);
1475 return -ENOMEM;
1476 }
1477 ioc->diag_buffer[buffer_type] = request_data;
1478 ioc->diag_buffer_sz[buffer_type] = request_data_sz;
1479 ioc->diag_buffer_dma[buffer_type] = request_data_dma;
1480 }
1481
1482 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
1483 mpi_request->BufferType = diag_register->buffer_type;
1484 mpi_request->Flags = cpu_to_le32(diag_register->diagnostic_flags);
1485 mpi_request->BufferAddress = cpu_to_le64(request_data_dma);
1486 mpi_request->BufferLength = cpu_to_le32(request_data_sz);
1487 mpi_request->VF_ID = 0; /* TODO */
1488 mpi_request->VP_ID = 0;
1489
1490 dctlprintk(ioc, pr_info(MPT3SAS_FMT
1491 "%s: diag_buffer(0x%p), dma(0x%llx), sz(%d)\n",
1492 ioc->name, __func__, request_data,
1493 (unsigned long long)request_data_dma,
1494 le32_to_cpu(mpi_request->BufferLength)));
1495
1496 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
1497 mpi_request->ProductSpecific[i] =
1498 cpu_to_le32(ioc->product_specific[buffer_type][i]);
1499
1500 init_completion(&ioc->ctl_cmds.done);
1501 mpt3sas_base_put_smid_default(ioc, smid);
1502 timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
1503 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
1504
1505 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1506 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
1507 __func__);
1508 _debug_dump_mf(mpi_request,
1509 sizeof(Mpi2DiagBufferPostRequest_t)/4);
1510 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
1511 issue_reset = 1;
1512 goto issue_host_reset;
1513 }
1514
1515 /* process the completed Reply Message Frame */
1516 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
1517 pr_err(MPT3SAS_FMT "%s: no reply message\n",
1518 ioc->name, __func__);
1519 rc = -EFAULT;
1520 goto out;
1521 }
1522
1523 mpi_reply = ioc->ctl_cmds.reply;
1524 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1525
1526 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1527 ioc->diag_buffer_status[buffer_type] |=
1528 MPT3_DIAG_BUFFER_IS_REGISTERED;
1529 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
1530 ioc->name, __func__));
1531 } else {
1532 pr_info(MPT3SAS_FMT
1533 "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
1534 ioc->name, __func__,
1535 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
1536 rc = -EFAULT;
1537 }
1538
1539 issue_host_reset:
1540 if (issue_reset)
1541 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1542 FORCE_BIG_HAMMER);
1543
1544 out:
1545
1546 if (rc && request_data)
1547 pci_free_consistent(ioc->pdev, request_data_sz,
1548 request_data, request_data_dma);
1549
1550 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1551 return rc;
1552 }
1553
1554 /**
1555 * mpt3sas_enable_diag_buffer - enabling diag_buffers support driver load time
1556 * @ioc: per adapter object
1557 * @bits_to_register: bitwise field where trace is bit 0, and snapshot is bit 1
1558 *
1559 * This is called when command line option diag_buffer_enable is enabled
1560 * at driver load time.
1561 */
1562 void
1563 mpt3sas_enable_diag_buffer(struct MPT3SAS_ADAPTER *ioc, u8 bits_to_register)
1564 {
1565 struct mpt3_diag_register diag_register;
1566
1567 memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
1568
1569 if (bits_to_register & 1) {
1570 pr_info(MPT3SAS_FMT "registering trace buffer support\n",
1571 ioc->name);
1572 ioc->diag_trigger_master.MasterData =
1573 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
1574 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
1575 /* register for 2MB buffers */
1576 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1577 diag_register.unique_id = 0x7075900;
1578 _ctl_diag_register_2(ioc, &diag_register);
1579 }
1580
1581 if (bits_to_register & 2) {
1582 pr_info(MPT3SAS_FMT "registering snapshot buffer support\n",
1583 ioc->name);
1584 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_SNAPSHOT;
1585 /* register for 2MB buffers */
1586 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1587 diag_register.unique_id = 0x7075901;
1588 _ctl_diag_register_2(ioc, &diag_register);
1589 }
1590
1591 if (bits_to_register & 4) {
1592 pr_info(MPT3SAS_FMT "registering extended buffer support\n",
1593 ioc->name);
1594 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_EXTENDED;
1595 /* register for 2MB buffers */
1596 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1597 diag_register.unique_id = 0x7075901;
1598 _ctl_diag_register_2(ioc, &diag_register);
1599 }
1600 }
1601
1602 /**
1603 * _ctl_diag_register - application register with driver
1604 * @ioc: per adapter object
1605 * @arg - user space buffer containing ioctl content
1606 *
1607 * This will allow the driver to setup any required buffers that will be
1608 * needed by firmware to communicate with the driver.
1609 */
1610 static long
1611 _ctl_diag_register(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1612 {
1613 struct mpt3_diag_register karg;
1614 long rc;
1615
1616 if (copy_from_user(&karg, arg, sizeof(karg))) {
1617 pr_err("failure at %s:%d/%s()!\n",
1618 __FILE__, __LINE__, __func__);
1619 return -EFAULT;
1620 }
1621
1622 rc = _ctl_diag_register_2(ioc, &karg);
1623 return rc;
1624 }
1625
1626 /**
1627 * _ctl_diag_unregister - application unregister with driver
1628 * @ioc: per adapter object
1629 * @arg - user space buffer containing ioctl content
1630 *
1631 * This will allow the driver to cleanup any memory allocated for diag
1632 * messages and to free up any resources.
1633 */
1634 static long
1635 _ctl_diag_unregister(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1636 {
1637 struct mpt3_diag_unregister karg;
1638 void *request_data;
1639 dma_addr_t request_data_dma;
1640 u32 request_data_sz;
1641 u8 buffer_type;
1642
1643 if (copy_from_user(&karg, arg, sizeof(karg))) {
1644 pr_err("failure at %s:%d/%s()!\n",
1645 __FILE__, __LINE__, __func__);
1646 return -EFAULT;
1647 }
1648
1649 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1650 __func__));
1651
1652 buffer_type = karg.unique_id & 0x000000ff;
1653 if (!_ctl_diag_capability(ioc, buffer_type)) {
1654 pr_err(MPT3SAS_FMT
1655 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1656 ioc->name, __func__, buffer_type);
1657 return -EPERM;
1658 }
1659
1660 if ((ioc->diag_buffer_status[buffer_type] &
1661 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1662 pr_err(MPT3SAS_FMT
1663 "%s: buffer_type(0x%02x) is not registered\n",
1664 ioc->name, __func__, buffer_type);
1665 return -EINVAL;
1666 }
1667 if ((ioc->diag_buffer_status[buffer_type] &
1668 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
1669 pr_err(MPT3SAS_FMT
1670 "%s: buffer_type(0x%02x) has not been released\n",
1671 ioc->name, __func__, buffer_type);
1672 return -EINVAL;
1673 }
1674
1675 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1676 pr_err(MPT3SAS_FMT
1677 "%s: unique_id(0x%08x) is not registered\n",
1678 ioc->name, __func__, karg.unique_id);
1679 return -EINVAL;
1680 }
1681
1682 request_data = ioc->diag_buffer[buffer_type];
1683 if (!request_data) {
1684 pr_err(MPT3SAS_FMT
1685 "%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
1686 ioc->name, __func__, buffer_type);
1687 return -ENOMEM;
1688 }
1689
1690 request_data_sz = ioc->diag_buffer_sz[buffer_type];
1691 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1692 pci_free_consistent(ioc->pdev, request_data_sz,
1693 request_data, request_data_dma);
1694 ioc->diag_buffer[buffer_type] = NULL;
1695 ioc->diag_buffer_status[buffer_type] = 0;
1696 return 0;
1697 }
1698
1699 /**
1700 * _ctl_diag_query - query relevant info associated with diag buffers
1701 * @ioc: per adapter object
1702 * @arg - user space buffer containing ioctl content
1703 *
1704 * The application will send only buffer_type and unique_id. Driver will
1705 * inspect unique_id first, if valid, fill in all the info. If unique_id is
1706 * 0x00, the driver will return info specified by Buffer Type.
1707 */
1708 static long
1709 _ctl_diag_query(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1710 {
1711 struct mpt3_diag_query karg;
1712 void *request_data;
1713 int i;
1714 u8 buffer_type;
1715
1716 if (copy_from_user(&karg, arg, sizeof(karg))) {
1717 pr_err("failure at %s:%d/%s()!\n",
1718 __FILE__, __LINE__, __func__);
1719 return -EFAULT;
1720 }
1721
1722 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1723 __func__));
1724
1725 karg.application_flags = 0;
1726 buffer_type = karg.buffer_type;
1727
1728 if (!_ctl_diag_capability(ioc, buffer_type)) {
1729 pr_err(MPT3SAS_FMT
1730 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1731 ioc->name, __func__, buffer_type);
1732 return -EPERM;
1733 }
1734
1735 if ((ioc->diag_buffer_status[buffer_type] &
1736 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1737 pr_err(MPT3SAS_FMT
1738 "%s: buffer_type(0x%02x) is not registered\n",
1739 ioc->name, __func__, buffer_type);
1740 return -EINVAL;
1741 }
1742
1743 if (karg.unique_id & 0xffffff00) {
1744 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1745 pr_err(MPT3SAS_FMT
1746 "%s: unique_id(0x%08x) is not registered\n",
1747 ioc->name, __func__, karg.unique_id);
1748 return -EINVAL;
1749 }
1750 }
1751
1752 request_data = ioc->diag_buffer[buffer_type];
1753 if (!request_data) {
1754 pr_err(MPT3SAS_FMT
1755 "%s: doesn't have buffer for buffer_type(0x%02x)\n",
1756 ioc->name, __func__, buffer_type);
1757 return -ENOMEM;
1758 }
1759
1760 if (ioc->diag_buffer_status[buffer_type] & MPT3_DIAG_BUFFER_IS_RELEASED)
1761 karg.application_flags = (MPT3_APP_FLAGS_APP_OWNED |
1762 MPT3_APP_FLAGS_BUFFER_VALID);
1763 else
1764 karg.application_flags = (MPT3_APP_FLAGS_APP_OWNED |
1765 MPT3_APP_FLAGS_BUFFER_VALID |
1766 MPT3_APP_FLAGS_FW_BUFFER_ACCESS);
1767
1768 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
1769 karg.product_specific[i] =
1770 ioc->product_specific[buffer_type][i];
1771
1772 karg.total_buffer_size = ioc->diag_buffer_sz[buffer_type];
1773 karg.driver_added_buffer_size = 0;
1774 karg.unique_id = ioc->unique_id[buffer_type];
1775 karg.diagnostic_flags = ioc->diagnostic_flags[buffer_type];
1776
1777 if (copy_to_user(arg, &karg, sizeof(struct mpt3_diag_query))) {
1778 pr_err(MPT3SAS_FMT
1779 "%s: unable to write mpt3_diag_query data @ %p\n",
1780 ioc->name, __func__, arg);
1781 return -EFAULT;
1782 }
1783 return 0;
1784 }
1785
1786 /**
1787 * mpt3sas_send_diag_release - Diag Release Message
1788 * @ioc: per adapter object
1789 * @buffer_type - specifies either TRACE, SNAPSHOT, or EXTENDED
1790 * @issue_reset - specifies whether host reset is required.
1791 *
1792 */
1793 int
1794 mpt3sas_send_diag_release(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type,
1795 u8 *issue_reset)
1796 {
1797 Mpi2DiagReleaseRequest_t *mpi_request;
1798 Mpi2DiagReleaseReply_t *mpi_reply;
1799 u16 smid;
1800 u16 ioc_status;
1801 u32 ioc_state;
1802 int rc;
1803 unsigned long timeleft;
1804
1805 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1806 __func__));
1807
1808 rc = 0;
1809 *issue_reset = 0;
1810
1811 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1812 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1813 if (ioc->diag_buffer_status[buffer_type] &
1814 MPT3_DIAG_BUFFER_IS_REGISTERED)
1815 ioc->diag_buffer_status[buffer_type] |=
1816 MPT3_DIAG_BUFFER_IS_RELEASED;
1817 dctlprintk(ioc, pr_info(MPT3SAS_FMT
1818 "%s: skipping due to FAULT state\n", ioc->name,
1819 __func__));
1820 rc = -EAGAIN;
1821 goto out;
1822 }
1823
1824 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
1825 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
1826 ioc->name, __func__);
1827 rc = -EAGAIN;
1828 goto out;
1829 }
1830
1831 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1832 if (!smid) {
1833 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
1834 ioc->name, __func__);
1835 rc = -EAGAIN;
1836 goto out;
1837 }
1838
1839 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
1840 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1841 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1842 ioc->ctl_cmds.smid = smid;
1843
1844 mpi_request->Function = MPI2_FUNCTION_DIAG_RELEASE;
1845 mpi_request->BufferType = buffer_type;
1846 mpi_request->VF_ID = 0; /* TODO */
1847 mpi_request->VP_ID = 0;
1848
1849 init_completion(&ioc->ctl_cmds.done);
1850 mpt3sas_base_put_smid_default(ioc, smid);
1851 timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
1852 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
1853
1854 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1855 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
1856 __func__);
1857 _debug_dump_mf(mpi_request,
1858 sizeof(Mpi2DiagReleaseRequest_t)/4);
1859 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
1860 *issue_reset = 1;
1861 rc = -EFAULT;
1862 goto out;
1863 }
1864
1865 /* process the completed Reply Message Frame */
1866 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
1867 pr_err(MPT3SAS_FMT "%s: no reply message\n",
1868 ioc->name, __func__);
1869 rc = -EFAULT;
1870 goto out;
1871 }
1872
1873 mpi_reply = ioc->ctl_cmds.reply;
1874 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1875
1876 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1877 ioc->diag_buffer_status[buffer_type] |=
1878 MPT3_DIAG_BUFFER_IS_RELEASED;
1879 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
1880 ioc->name, __func__));
1881 } else {
1882 pr_info(MPT3SAS_FMT
1883 "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
1884 ioc->name, __func__,
1885 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
1886 rc = -EFAULT;
1887 }
1888
1889 out:
1890 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1891 return rc;
1892 }
1893
1894 /**
1895 * _ctl_diag_release - request to send Diag Release Message to firmware
1896 * @arg - user space buffer containing ioctl content
1897 *
1898 * This allows ownership of the specified buffer to returned to the driver,
1899 * allowing an application to read the buffer without fear that firmware is
1900 * overwritting information in the buffer.
1901 */
1902 static long
1903 _ctl_diag_release(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1904 {
1905 struct mpt3_diag_release karg;
1906 void *request_data;
1907 int rc;
1908 u8 buffer_type;
1909 u8 issue_reset = 0;
1910
1911 if (copy_from_user(&karg, arg, sizeof(karg))) {
1912 pr_err("failure at %s:%d/%s()!\n",
1913 __FILE__, __LINE__, __func__);
1914 return -EFAULT;
1915 }
1916
1917 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1918 __func__));
1919
1920 buffer_type = karg.unique_id & 0x000000ff;
1921 if (!_ctl_diag_capability(ioc, buffer_type)) {
1922 pr_err(MPT3SAS_FMT
1923 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1924 ioc->name, __func__, buffer_type);
1925 return -EPERM;
1926 }
1927
1928 if ((ioc->diag_buffer_status[buffer_type] &
1929 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1930 pr_err(MPT3SAS_FMT
1931 "%s: buffer_type(0x%02x) is not registered\n",
1932 ioc->name, __func__, buffer_type);
1933 return -EINVAL;
1934 }
1935
1936 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1937 pr_err(MPT3SAS_FMT
1938 "%s: unique_id(0x%08x) is not registered\n",
1939 ioc->name, __func__, karg.unique_id);
1940 return -EINVAL;
1941 }
1942
1943 if (ioc->diag_buffer_status[buffer_type] &
1944 MPT3_DIAG_BUFFER_IS_RELEASED) {
1945 pr_err(MPT3SAS_FMT
1946 "%s: buffer_type(0x%02x) is already released\n",
1947 ioc->name, __func__,
1948 buffer_type);
1949 return 0;
1950 }
1951
1952 request_data = ioc->diag_buffer[buffer_type];
1953
1954 if (!request_data) {
1955 pr_err(MPT3SAS_FMT
1956 "%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
1957 ioc->name, __func__, buffer_type);
1958 return -ENOMEM;
1959 }
1960
1961 /* buffers were released by due to host reset */
1962 if ((ioc->diag_buffer_status[buffer_type] &
1963 MPT3_DIAG_BUFFER_IS_DIAG_RESET)) {
1964 ioc->diag_buffer_status[buffer_type] |=
1965 MPT3_DIAG_BUFFER_IS_RELEASED;
1966 ioc->diag_buffer_status[buffer_type] &=
1967 ~MPT3_DIAG_BUFFER_IS_DIAG_RESET;
1968 pr_err(MPT3SAS_FMT
1969 "%s: buffer_type(0x%02x) was released due to host reset\n",
1970 ioc->name, __func__, buffer_type);
1971 return 0;
1972 }
1973
1974 rc = mpt3sas_send_diag_release(ioc, buffer_type, &issue_reset);
1975
1976 if (issue_reset)
1977 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1978 FORCE_BIG_HAMMER);
1979
1980 return rc;
1981 }
1982
1983 /**
1984 * _ctl_diag_read_buffer - request for copy of the diag buffer
1985 * @ioc: per adapter object
1986 * @arg - user space buffer containing ioctl content
1987 */
1988 static long
1989 _ctl_diag_read_buffer(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1990 {
1991 struct mpt3_diag_read_buffer karg;
1992 struct mpt3_diag_read_buffer __user *uarg = arg;
1993 void *request_data, *diag_data;
1994 Mpi2DiagBufferPostRequest_t *mpi_request;
1995 Mpi2DiagBufferPostReply_t *mpi_reply;
1996 int rc, i;
1997 u8 buffer_type;
1998 unsigned long timeleft, request_size, copy_size;
1999 u16 smid;
2000 u16 ioc_status;
2001 u8 issue_reset = 0;
2002
2003 if (copy_from_user(&karg, arg, sizeof(karg))) {
2004 pr_err("failure at %s:%d/%s()!\n",
2005 __FILE__, __LINE__, __func__);
2006 return -EFAULT;
2007 }
2008
2009 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
2010 __func__));
2011
2012 buffer_type = karg.unique_id & 0x000000ff;
2013 if (!_ctl_diag_capability(ioc, buffer_type)) {
2014 pr_err(MPT3SAS_FMT
2015 "%s: doesn't have capability for buffer_type(0x%02x)\n",
2016 ioc->name, __func__, buffer_type);
2017 return -EPERM;
2018 }
2019
2020 if (karg.unique_id != ioc->unique_id[buffer_type]) {
2021 pr_err(MPT3SAS_FMT
2022 "%s: unique_id(0x%08x) is not registered\n",
2023 ioc->name, __func__, karg.unique_id);
2024 return -EINVAL;
2025 }
2026
2027 request_data = ioc->diag_buffer[buffer_type];
2028 if (!request_data) {
2029 pr_err(MPT3SAS_FMT
2030 "%s: doesn't have buffer for buffer_type(0x%02x)\n",
2031 ioc->name, __func__, buffer_type);
2032 return -ENOMEM;
2033 }
2034
2035 request_size = ioc->diag_buffer_sz[buffer_type];
2036
2037 if ((karg.starting_offset % 4) || (karg.bytes_to_read % 4)) {
2038 pr_err(MPT3SAS_FMT "%s: either the starting_offset " \
2039 "or bytes_to_read are not 4 byte aligned\n", ioc->name,
2040 __func__);
2041 return -EINVAL;
2042 }
2043
2044 if (karg.starting_offset > request_size)
2045 return -EINVAL;
2046
2047 diag_data = (void *)(request_data + karg.starting_offset);
2048 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2049 "%s: diag_buffer(%p), offset(%d), sz(%d)\n",
2050 ioc->name, __func__,
2051 diag_data, karg.starting_offset, karg.bytes_to_read));
2052
2053 /* Truncate data on requests that are too large */
2054 if ((diag_data + karg.bytes_to_read < diag_data) ||
2055 (diag_data + karg.bytes_to_read > request_data + request_size))
2056 copy_size = request_size - karg.starting_offset;
2057 else
2058 copy_size = karg.bytes_to_read;
2059
2060 if (copy_to_user((void __user *)uarg->diagnostic_data,
2061 diag_data, copy_size)) {
2062 pr_err(MPT3SAS_FMT
2063 "%s: Unable to write mpt_diag_read_buffer_t data @ %p\n",
2064 ioc->name, __func__, diag_data);
2065 return -EFAULT;
2066 }
2067
2068 if ((karg.flags & MPT3_FLAGS_REREGISTER) == 0)
2069 return 0;
2070
2071 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2072 "%s: Reregister buffer_type(0x%02x)\n",
2073 ioc->name, __func__, buffer_type));
2074 if ((ioc->diag_buffer_status[buffer_type] &
2075 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
2076 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2077 "%s: buffer_type(0x%02x) is still registered\n",
2078 ioc->name, __func__, buffer_type));
2079 return 0;
2080 }
2081 /* Get a free request frame and save the message context.
2082 */
2083
2084 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
2085 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
2086 ioc->name, __func__);
2087 rc = -EAGAIN;
2088 goto out;
2089 }
2090
2091 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
2092 if (!smid) {
2093 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
2094 ioc->name, __func__);
2095 rc = -EAGAIN;
2096 goto out;
2097 }
2098
2099 rc = 0;
2100 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
2101 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
2102 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
2103 ioc->ctl_cmds.smid = smid;
2104
2105 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
2106 mpi_request->BufferType = buffer_type;
2107 mpi_request->BufferLength =
2108 cpu_to_le32(ioc->diag_buffer_sz[buffer_type]);
2109 mpi_request->BufferAddress =
2110 cpu_to_le64(ioc->diag_buffer_dma[buffer_type]);
2111 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
2112 mpi_request->ProductSpecific[i] =
2113 cpu_to_le32(ioc->product_specific[buffer_type][i]);
2114 mpi_request->VF_ID = 0; /* TODO */
2115 mpi_request->VP_ID = 0;
2116
2117 init_completion(&ioc->ctl_cmds.done);
2118 mpt3sas_base_put_smid_default(ioc, smid);
2119 timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
2120 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
2121
2122 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
2123 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
2124 __func__);
2125 _debug_dump_mf(mpi_request,
2126 sizeof(Mpi2DiagBufferPostRequest_t)/4);
2127 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
2128 issue_reset = 1;
2129 goto issue_host_reset;
2130 }
2131
2132 /* process the completed Reply Message Frame */
2133 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
2134 pr_err(MPT3SAS_FMT "%s: no reply message\n",
2135 ioc->name, __func__);
2136 rc = -EFAULT;
2137 goto out;
2138 }
2139
2140 mpi_reply = ioc->ctl_cmds.reply;
2141 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
2142
2143 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
2144 ioc->diag_buffer_status[buffer_type] |=
2145 MPT3_DIAG_BUFFER_IS_REGISTERED;
2146 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
2147 ioc->name, __func__));
2148 } else {
2149 pr_info(MPT3SAS_FMT
2150 "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
2151 ioc->name, __func__,
2152 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
2153 rc = -EFAULT;
2154 }
2155
2156 issue_host_reset:
2157 if (issue_reset)
2158 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2159 FORCE_BIG_HAMMER);
2160
2161 out:
2162
2163 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
2164 return rc;
2165 }
2166
2167
2168
2169 #ifdef CONFIG_COMPAT
2170 /**
2171 * _ctl_compat_mpt_command - convert 32bit pointers to 64bit.
2172 * @ioc: per adapter object
2173 * @cmd - ioctl opcode
2174 * @arg - (struct mpt3_ioctl_command32)
2175 *
2176 * MPT3COMMAND32 - Handle 32bit applications running on 64bit os.
2177 */
2178 static long
2179 _ctl_compat_mpt_command(struct MPT3SAS_ADAPTER *ioc, unsigned cmd,
2180 void __user *arg)
2181 {
2182 struct mpt3_ioctl_command32 karg32;
2183 struct mpt3_ioctl_command32 __user *uarg;
2184 struct mpt3_ioctl_command karg;
2185
2186 if (_IOC_SIZE(cmd) != sizeof(struct mpt3_ioctl_command32))
2187 return -EINVAL;
2188
2189 uarg = (struct mpt3_ioctl_command32 __user *) arg;
2190
2191 if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32))) {
2192 pr_err("failure at %s:%d/%s()!\n",
2193 __FILE__, __LINE__, __func__);
2194 return -EFAULT;
2195 }
2196
2197 memset(&karg, 0, sizeof(struct mpt3_ioctl_command));
2198 karg.hdr.ioc_number = karg32.hdr.ioc_number;
2199 karg.hdr.port_number = karg32.hdr.port_number;
2200 karg.hdr.max_data_size = karg32.hdr.max_data_size;
2201 karg.timeout = karg32.timeout;
2202 karg.max_reply_bytes = karg32.max_reply_bytes;
2203 karg.data_in_size = karg32.data_in_size;
2204 karg.data_out_size = karg32.data_out_size;
2205 karg.max_sense_bytes = karg32.max_sense_bytes;
2206 karg.data_sge_offset = karg32.data_sge_offset;
2207 karg.reply_frame_buf_ptr = compat_ptr(karg32.reply_frame_buf_ptr);
2208 karg.data_in_buf_ptr = compat_ptr(karg32.data_in_buf_ptr);
2209 karg.data_out_buf_ptr = compat_ptr(karg32.data_out_buf_ptr);
2210 karg.sense_data_ptr = compat_ptr(karg32.sense_data_ptr);
2211 return _ctl_do_mpt_command(ioc, karg, &uarg->mf);
2212 }
2213 #endif
2214
2215 /**
2216 * _ctl_ioctl_main - main ioctl entry point
2217 * @file - (struct file)
2218 * @cmd - ioctl opcode
2219 * @arg - user space data buffer
2220 * @compat - handles 32 bit applications in 64bit os
2221 * @mpi_version: will be MPI2_VERSION for mpt2ctl ioctl device &
2222 * MPI25_VERSION | MPI26_VERSION for mpt3ctl ioctl device.
2223 */
2224 static long
2225 _ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg,
2226 u8 compat, u16 mpi_version)
2227 {
2228 struct MPT3SAS_ADAPTER *ioc;
2229 struct mpt3_ioctl_header ioctl_header;
2230 enum block_state state;
2231 long ret = -EINVAL;
2232
2233 /* get IOCTL header */
2234 if (copy_from_user(&ioctl_header, (char __user *)arg,
2235 sizeof(struct mpt3_ioctl_header))) {
2236 pr_err("failure at %s:%d/%s()!\n",
2237 __FILE__, __LINE__, __func__);
2238 return -EFAULT;
2239 }
2240
2241 if (_ctl_verify_adapter(ioctl_header.ioc_number,
2242 &ioc, mpi_version) == -1 || !ioc)
2243 return -ENODEV;
2244
2245 /* pci_access_mutex lock acquired by ioctl path */
2246 mutex_lock(&ioc->pci_access_mutex);
2247
2248 if (ioc->shost_recovery || ioc->pci_error_recovery ||
2249 ioc->is_driver_loading || ioc->remove_host) {
2250 ret = -EAGAIN;
2251 goto out_unlock_pciaccess;
2252 }
2253
2254 state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING;
2255 if (state == NON_BLOCKING) {
2256 if (!mutex_trylock(&ioc->ctl_cmds.mutex)) {
2257 ret = -EAGAIN;
2258 goto out_unlock_pciaccess;
2259 }
2260 } else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) {
2261 ret = -ERESTARTSYS;
2262 goto out_unlock_pciaccess;
2263 }
2264
2265
2266 switch (cmd) {
2267 case MPT3IOCINFO:
2268 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_iocinfo))
2269 ret = _ctl_getiocinfo(ioc, arg);
2270 break;
2271 #ifdef CONFIG_COMPAT
2272 case MPT3COMMAND32:
2273 #endif
2274 case MPT3COMMAND:
2275 {
2276 struct mpt3_ioctl_command __user *uarg;
2277 struct mpt3_ioctl_command karg;
2278
2279 #ifdef CONFIG_COMPAT
2280 if (compat) {
2281 ret = _ctl_compat_mpt_command(ioc, cmd, arg);
2282 break;
2283 }
2284 #endif
2285 if (copy_from_user(&karg, arg, sizeof(karg))) {
2286 pr_err("failure at %s:%d/%s()!\n",
2287 __FILE__, __LINE__, __func__);
2288 ret = -EFAULT;
2289 break;
2290 }
2291
2292 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_command)) {
2293 uarg = arg;
2294 ret = _ctl_do_mpt_command(ioc, karg, &uarg->mf);
2295 }
2296 break;
2297 }
2298 case MPT3EVENTQUERY:
2299 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventquery))
2300 ret = _ctl_eventquery(ioc, arg);
2301 break;
2302 case MPT3EVENTENABLE:
2303 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventenable))
2304 ret = _ctl_eventenable(ioc, arg);
2305 break;
2306 case MPT3EVENTREPORT:
2307 ret = _ctl_eventreport(ioc, arg);
2308 break;
2309 case MPT3HARDRESET:
2310 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_diag_reset))
2311 ret = _ctl_do_reset(ioc, arg);
2312 break;
2313 case MPT3BTDHMAPPING:
2314 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_btdh_mapping))
2315 ret = _ctl_btdh_mapping(ioc, arg);
2316 break;
2317 case MPT3DIAGREGISTER:
2318 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_register))
2319 ret = _ctl_diag_register(ioc, arg);
2320 break;
2321 case MPT3DIAGUNREGISTER:
2322 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_unregister))
2323 ret = _ctl_diag_unregister(ioc, arg);
2324 break;
2325 case MPT3DIAGQUERY:
2326 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_query))
2327 ret = _ctl_diag_query(ioc, arg);
2328 break;
2329 case MPT3DIAGRELEASE:
2330 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_release))
2331 ret = _ctl_diag_release(ioc, arg);
2332 break;
2333 case MPT3DIAGREADBUFFER:
2334 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_read_buffer))
2335 ret = _ctl_diag_read_buffer(ioc, arg);
2336 break;
2337 default:
2338 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2339 "unsupported ioctl opcode(0x%08x)\n", ioc->name, cmd));
2340 break;
2341 }
2342
2343 mutex_unlock(&ioc->ctl_cmds.mutex);
2344 out_unlock_pciaccess:
2345 mutex_unlock(&ioc->pci_access_mutex);
2346 return ret;
2347 }
2348
2349 /**
2350 * _ctl_ioctl - mpt3ctl main ioctl entry point (unlocked)
2351 * @file - (struct file)
2352 * @cmd - ioctl opcode
2353 * @arg -
2354 */
2355 long
2356 _ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2357 {
2358 long ret;
2359
2360 /* pass MPI25_VERSION | MPI26_VERSION value,
2361 * to indicate that this ioctl cmd
2362 * came from mpt3ctl ioctl device.
2363 */
2364 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0,
2365 MPI25_VERSION | MPI26_VERSION);
2366 return ret;
2367 }
2368
2369 /**
2370 * _ctl_mpt2_ioctl - mpt2ctl main ioctl entry point (unlocked)
2371 * @file - (struct file)
2372 * @cmd - ioctl opcode
2373 * @arg -
2374 */
2375 long
2376 _ctl_mpt2_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2377 {
2378 long ret;
2379
2380 /* pass MPI2_VERSION value, to indicate that this ioctl cmd
2381 * came from mpt2ctl ioctl device.
2382 */
2383 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0, MPI2_VERSION);
2384 return ret;
2385 }
2386 #ifdef CONFIG_COMPAT
2387 /**
2388 *_ ctl_ioctl_compat - main ioctl entry point (compat)
2389 * @file -
2390 * @cmd -
2391 * @arg -
2392 *
2393 * This routine handles 32 bit applications in 64bit os.
2394 */
2395 long
2396 _ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
2397 {
2398 long ret;
2399
2400 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1,
2401 MPI25_VERSION | MPI26_VERSION);
2402 return ret;
2403 }
2404
2405 /**
2406 *_ ctl_mpt2_ioctl_compat - main ioctl entry point (compat)
2407 * @file -
2408 * @cmd -
2409 * @arg -
2410 *
2411 * This routine handles 32 bit applications in 64bit os.
2412 */
2413 long
2414 _ctl_mpt2_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
2415 {
2416 long ret;
2417
2418 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1, MPI2_VERSION);
2419 return ret;
2420 }
2421 #endif
2422
2423 /* scsi host attributes */
2424 /**
2425 * _ctl_version_fw_show - firmware version
2426 * @cdev - pointer to embedded class device
2427 * @buf - the buffer returned
2428 *
2429 * A sysfs 'read-only' shost attribute.
2430 */
2431 static ssize_t
2432 _ctl_version_fw_show(struct device *cdev, struct device_attribute *attr,
2433 char *buf)
2434 {
2435 struct Scsi_Host *shost = class_to_shost(cdev);
2436 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2437
2438 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2439 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
2440 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
2441 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
2442 ioc->facts.FWVersion.Word & 0x000000FF);
2443 }
2444 static DEVICE_ATTR(version_fw, S_IRUGO, _ctl_version_fw_show, NULL);
2445
2446 /**
2447 * _ctl_version_bios_show - bios version
2448 * @cdev - pointer to embedded class device
2449 * @buf - the buffer returned
2450 *
2451 * A sysfs 'read-only' shost attribute.
2452 */
2453 static ssize_t
2454 _ctl_version_bios_show(struct device *cdev, struct device_attribute *attr,
2455 char *buf)
2456 {
2457 struct Scsi_Host *shost = class_to_shost(cdev);
2458 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2459
2460 u32 version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
2461
2462 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2463 (version & 0xFF000000) >> 24,
2464 (version & 0x00FF0000) >> 16,
2465 (version & 0x0000FF00) >> 8,
2466 version & 0x000000FF);
2467 }
2468 static DEVICE_ATTR(version_bios, S_IRUGO, _ctl_version_bios_show, NULL);
2469
2470 /**
2471 * _ctl_version_mpi_show - MPI (message passing interface) version
2472 * @cdev - pointer to embedded class device
2473 * @buf - the buffer returned
2474 *
2475 * A sysfs 'read-only' shost attribute.
2476 */
2477 static ssize_t
2478 _ctl_version_mpi_show(struct device *cdev, struct device_attribute *attr,
2479 char *buf)
2480 {
2481 struct Scsi_Host *shost = class_to_shost(cdev);
2482 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2483
2484 return snprintf(buf, PAGE_SIZE, "%03x.%02x\n",
2485 ioc->facts.MsgVersion, ioc->facts.HeaderVersion >> 8);
2486 }
2487 static DEVICE_ATTR(version_mpi, S_IRUGO, _ctl_version_mpi_show, NULL);
2488
2489 /**
2490 * _ctl_version_product_show - product name
2491 * @cdev - pointer to embedded class device
2492 * @buf - the buffer returned
2493 *
2494 * A sysfs 'read-only' shost attribute.
2495 */
2496 static ssize_t
2497 _ctl_version_product_show(struct device *cdev, struct device_attribute *attr,
2498 char *buf)
2499 {
2500 struct Scsi_Host *shost = class_to_shost(cdev);
2501 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2502
2503 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.ChipName);
2504 }
2505 static DEVICE_ATTR(version_product, S_IRUGO, _ctl_version_product_show, NULL);
2506
2507 /**
2508 * _ctl_version_nvdata_persistent_show - ndvata persistent version
2509 * @cdev - pointer to embedded class device
2510 * @buf - the buffer returned
2511 *
2512 * A sysfs 'read-only' shost attribute.
2513 */
2514 static ssize_t
2515 _ctl_version_nvdata_persistent_show(struct device *cdev,
2516 struct device_attribute *attr, char *buf)
2517 {
2518 struct Scsi_Host *shost = class_to_shost(cdev);
2519 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2520
2521 return snprintf(buf, PAGE_SIZE, "%08xh\n",
2522 le32_to_cpu(ioc->iounit_pg0.NvdataVersionPersistent.Word));
2523 }
2524 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
2525 _ctl_version_nvdata_persistent_show, NULL);
2526
2527 /**
2528 * _ctl_version_nvdata_default_show - nvdata default version
2529 * @cdev - pointer to embedded class device
2530 * @buf - the buffer returned
2531 *
2532 * A sysfs 'read-only' shost attribute.
2533 */
2534 static ssize_t
2535 _ctl_version_nvdata_default_show(struct device *cdev, struct device_attribute
2536 *attr, char *buf)
2537 {
2538 struct Scsi_Host *shost = class_to_shost(cdev);
2539 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2540
2541 return snprintf(buf, PAGE_SIZE, "%08xh\n",
2542 le32_to_cpu(ioc->iounit_pg0.NvdataVersionDefault.Word));
2543 }
2544 static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
2545 _ctl_version_nvdata_default_show, NULL);
2546
2547 /**
2548 * _ctl_board_name_show - board name
2549 * @cdev - pointer to embedded class device
2550 * @buf - the buffer returned
2551 *
2552 * A sysfs 'read-only' shost attribute.
2553 */
2554 static ssize_t
2555 _ctl_board_name_show(struct device *cdev, struct device_attribute *attr,
2556 char *buf)
2557 {
2558 struct Scsi_Host *shost = class_to_shost(cdev);
2559 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2560
2561 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardName);
2562 }
2563 static DEVICE_ATTR(board_name, S_IRUGO, _ctl_board_name_show, NULL);
2564
2565 /**
2566 * _ctl_board_assembly_show - board assembly name
2567 * @cdev - pointer to embedded class device
2568 * @buf - the buffer returned
2569 *
2570 * A sysfs 'read-only' shost attribute.
2571 */
2572 static ssize_t
2573 _ctl_board_assembly_show(struct device *cdev, struct device_attribute *attr,
2574 char *buf)
2575 {
2576 struct Scsi_Host *shost = class_to_shost(cdev);
2577 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2578
2579 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardAssembly);
2580 }
2581 static DEVICE_ATTR(board_assembly, S_IRUGO, _ctl_board_assembly_show, NULL);
2582
2583 /**
2584 * _ctl_board_tracer_show - board tracer number
2585 * @cdev - pointer to embedded class device
2586 * @buf - the buffer returned
2587 *
2588 * A sysfs 'read-only' shost attribute.
2589 */
2590 static ssize_t
2591 _ctl_board_tracer_show(struct device *cdev, struct device_attribute *attr,
2592 char *buf)
2593 {
2594 struct Scsi_Host *shost = class_to_shost(cdev);
2595 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2596
2597 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardTracerNumber);
2598 }
2599 static DEVICE_ATTR(board_tracer, S_IRUGO, _ctl_board_tracer_show, NULL);
2600
2601 /**
2602 * _ctl_io_delay_show - io missing delay
2603 * @cdev - pointer to embedded class device
2604 * @buf - the buffer returned
2605 *
2606 * This is for firmware implemention for deboucing device
2607 * removal events.
2608 *
2609 * A sysfs 'read-only' shost attribute.
2610 */
2611 static ssize_t
2612 _ctl_io_delay_show(struct device *cdev, struct device_attribute *attr,
2613 char *buf)
2614 {
2615 struct Scsi_Host *shost = class_to_shost(cdev);
2616 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2617
2618 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
2619 }
2620 static DEVICE_ATTR(io_delay, S_IRUGO, _ctl_io_delay_show, NULL);
2621
2622 /**
2623 * _ctl_device_delay_show - device missing delay
2624 * @cdev - pointer to embedded class device
2625 * @buf - the buffer returned
2626 *
2627 * This is for firmware implemention for deboucing device
2628 * removal events.
2629 *
2630 * A sysfs 'read-only' shost attribute.
2631 */
2632 static ssize_t
2633 _ctl_device_delay_show(struct device *cdev, struct device_attribute *attr,
2634 char *buf)
2635 {
2636 struct Scsi_Host *shost = class_to_shost(cdev);
2637 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2638
2639 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
2640 }
2641 static DEVICE_ATTR(device_delay, S_IRUGO, _ctl_device_delay_show, NULL);
2642
2643 /**
2644 * _ctl_fw_queue_depth_show - global credits
2645 * @cdev - pointer to embedded class device
2646 * @buf - the buffer returned
2647 *
2648 * This is firmware queue depth limit
2649 *
2650 * A sysfs 'read-only' shost attribute.
2651 */
2652 static ssize_t
2653 _ctl_fw_queue_depth_show(struct device *cdev, struct device_attribute *attr,
2654 char *buf)
2655 {
2656 struct Scsi_Host *shost = class_to_shost(cdev);
2657 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2658
2659 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->facts.RequestCredit);
2660 }
2661 static DEVICE_ATTR(fw_queue_depth, S_IRUGO, _ctl_fw_queue_depth_show, NULL);
2662
2663 /**
2664 * _ctl_sas_address_show - sas address
2665 * @cdev - pointer to embedded class device
2666 * @buf - the buffer returned
2667 *
2668 * This is the controller sas address
2669 *
2670 * A sysfs 'read-only' shost attribute.
2671 */
2672 static ssize_t
2673 _ctl_host_sas_address_show(struct device *cdev, struct device_attribute *attr,
2674 char *buf)
2675
2676 {
2677 struct Scsi_Host *shost = class_to_shost(cdev);
2678 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2679
2680 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
2681 (unsigned long long)ioc->sas_hba.sas_address);
2682 }
2683 static DEVICE_ATTR(host_sas_address, S_IRUGO,
2684 _ctl_host_sas_address_show, NULL);
2685
2686 /**
2687 * _ctl_logging_level_show - logging level
2688 * @cdev - pointer to embedded class device
2689 * @buf - the buffer returned
2690 *
2691 * A sysfs 'read/write' shost attribute.
2692 */
2693 static ssize_t
2694 _ctl_logging_level_show(struct device *cdev, struct device_attribute *attr,
2695 char *buf)
2696 {
2697 struct Scsi_Host *shost = class_to_shost(cdev);
2698 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2699
2700 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->logging_level);
2701 }
2702 static ssize_t
2703 _ctl_logging_level_store(struct device *cdev, struct device_attribute *attr,
2704 const char *buf, size_t count)
2705 {
2706 struct Scsi_Host *shost = class_to_shost(cdev);
2707 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2708 int val = 0;
2709
2710 if (sscanf(buf, "%x", &val) != 1)
2711 return -EINVAL;
2712
2713 ioc->logging_level = val;
2714 pr_info(MPT3SAS_FMT "logging_level=%08xh\n", ioc->name,
2715 ioc->logging_level);
2716 return strlen(buf);
2717 }
2718 static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR, _ctl_logging_level_show,
2719 _ctl_logging_level_store);
2720
2721 /**
2722 * _ctl_fwfault_debug_show - show/store fwfault_debug
2723 * @cdev - pointer to embedded class device
2724 * @buf - the buffer returned
2725 *
2726 * mpt3sas_fwfault_debug is command line option
2727 * A sysfs 'read/write' shost attribute.
2728 */
2729 static ssize_t
2730 _ctl_fwfault_debug_show(struct device *cdev, struct device_attribute *attr,
2731 char *buf)
2732 {
2733 struct Scsi_Host *shost = class_to_shost(cdev);
2734 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2735
2736 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->fwfault_debug);
2737 }
2738 static ssize_t
2739 _ctl_fwfault_debug_store(struct device *cdev, struct device_attribute *attr,
2740 const char *buf, size_t count)
2741 {
2742 struct Scsi_Host *shost = class_to_shost(cdev);
2743 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2744 int val = 0;
2745
2746 if (sscanf(buf, "%d", &val) != 1)
2747 return -EINVAL;
2748
2749 ioc->fwfault_debug = val;
2750 pr_info(MPT3SAS_FMT "fwfault_debug=%d\n", ioc->name,
2751 ioc->fwfault_debug);
2752 return strlen(buf);
2753 }
2754 static DEVICE_ATTR(fwfault_debug, S_IRUGO | S_IWUSR,
2755 _ctl_fwfault_debug_show, _ctl_fwfault_debug_store);
2756
2757 /**
2758 * _ctl_ioc_reset_count_show - ioc reset count
2759 * @cdev - pointer to embedded class device
2760 * @buf - the buffer returned
2761 *
2762 * This is firmware queue depth limit
2763 *
2764 * A sysfs 'read-only' shost attribute.
2765 */
2766 static ssize_t
2767 _ctl_ioc_reset_count_show(struct device *cdev, struct device_attribute *attr,
2768 char *buf)
2769 {
2770 struct Scsi_Host *shost = class_to_shost(cdev);
2771 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2772
2773 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->ioc_reset_count);
2774 }
2775 static DEVICE_ATTR(ioc_reset_count, S_IRUGO, _ctl_ioc_reset_count_show, NULL);
2776
2777 /**
2778 * _ctl_ioc_reply_queue_count_show - number of reply queues
2779 * @cdev - pointer to embedded class device
2780 * @buf - the buffer returned
2781 *
2782 * This is number of reply queues
2783 *
2784 * A sysfs 'read-only' shost attribute.
2785 */
2786 static ssize_t
2787 _ctl_ioc_reply_queue_count_show(struct device *cdev,
2788 struct device_attribute *attr, char *buf)
2789 {
2790 u8 reply_queue_count;
2791 struct Scsi_Host *shost = class_to_shost(cdev);
2792 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2793
2794 if ((ioc->facts.IOCCapabilities &
2795 MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX) && ioc->msix_enable)
2796 reply_queue_count = ioc->reply_queue_count;
2797 else
2798 reply_queue_count = 1;
2799
2800 return snprintf(buf, PAGE_SIZE, "%d\n", reply_queue_count);
2801 }
2802 static DEVICE_ATTR(reply_queue_count, S_IRUGO, _ctl_ioc_reply_queue_count_show,
2803 NULL);
2804
2805 /**
2806 * _ctl_BRM_status_show - Backup Rail Monitor Status
2807 * @cdev - pointer to embedded class device
2808 * @buf - the buffer returned
2809 *
2810 * This is number of reply queues
2811 *
2812 * A sysfs 'read-only' shost attribute.
2813 */
2814 static ssize_t
2815 _ctl_BRM_status_show(struct device *cdev, struct device_attribute *attr,
2816 char *buf)
2817 {
2818 struct Scsi_Host *shost = class_to_shost(cdev);
2819 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2820 Mpi2IOUnitPage3_t *io_unit_pg3 = NULL;
2821 Mpi2ConfigReply_t mpi_reply;
2822 u16 backup_rail_monitor_status = 0;
2823 u16 ioc_status;
2824 int sz;
2825 ssize_t rc = 0;
2826
2827 if (!ioc->is_warpdrive) {
2828 pr_err(MPT3SAS_FMT "%s: BRM attribute is only for"
2829 " warpdrive\n", ioc->name, __func__);
2830 goto out;
2831 }
2832 /* pci_access_mutex lock acquired by sysfs show path */
2833 mutex_lock(&ioc->pci_access_mutex);
2834 if (ioc->pci_error_recovery || ioc->remove_host) {
2835 mutex_unlock(&ioc->pci_access_mutex);
2836 return 0;
2837 }
2838
2839 /* allocate upto GPIOVal 36 entries */
2840 sz = offsetof(Mpi2IOUnitPage3_t, GPIOVal) + (sizeof(u16) * 36);
2841 io_unit_pg3 = kzalloc(sz, GFP_KERNEL);
2842 if (!io_unit_pg3) {
2843 pr_err(MPT3SAS_FMT "%s: failed allocating memory "
2844 "for iounit_pg3: (%d) bytes\n", ioc->name, __func__, sz);
2845 goto out;
2846 }
2847
2848 if (mpt3sas_config_get_iounit_pg3(ioc, &mpi_reply, io_unit_pg3, sz) !=
2849 0) {
2850 pr_err(MPT3SAS_FMT
2851 "%s: failed reading iounit_pg3\n", ioc->name,
2852 __func__);
2853 goto out;
2854 }
2855
2856 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
2857 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
2858 pr_err(MPT3SAS_FMT "%s: iounit_pg3 failed with "
2859 "ioc_status(0x%04x)\n", ioc->name, __func__, ioc_status);
2860 goto out;
2861 }
2862
2863 if (io_unit_pg3->GPIOCount < 25) {
2864 pr_err(MPT3SAS_FMT "%s: iounit_pg3->GPIOCount less than "
2865 "25 entries, detected (%d) entries\n", ioc->name, __func__,
2866 io_unit_pg3->GPIOCount);
2867 goto out;
2868 }
2869
2870 /* BRM status is in bit zero of GPIOVal[24] */
2871 backup_rail_monitor_status = le16_to_cpu(io_unit_pg3->GPIOVal[24]);
2872 rc = snprintf(buf, PAGE_SIZE, "%d\n", (backup_rail_monitor_status & 1));
2873
2874 out:
2875 kfree(io_unit_pg3);
2876 mutex_unlock(&ioc->pci_access_mutex);
2877 return rc;
2878 }
2879 static DEVICE_ATTR(BRM_status, S_IRUGO, _ctl_BRM_status_show, NULL);
2880
2881 struct DIAG_BUFFER_START {
2882 __le32 Size;
2883 __le32 DiagVersion;
2884 u8 BufferType;
2885 u8 Reserved[3];
2886 __le32 Reserved1;
2887 __le32 Reserved2;
2888 __le32 Reserved3;
2889 };
2890
2891 /**
2892 * _ctl_host_trace_buffer_size_show - host buffer size (trace only)
2893 * @cdev - pointer to embedded class device
2894 * @buf - the buffer returned
2895 *
2896 * A sysfs 'read-only' shost attribute.
2897 */
2898 static ssize_t
2899 _ctl_host_trace_buffer_size_show(struct device *cdev,
2900 struct device_attribute *attr, char *buf)
2901 {
2902 struct Scsi_Host *shost = class_to_shost(cdev);
2903 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2904 u32 size = 0;
2905 struct DIAG_BUFFER_START *request_data;
2906
2907 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
2908 pr_err(MPT3SAS_FMT
2909 "%s: host_trace_buffer is not registered\n",
2910 ioc->name, __func__);
2911 return 0;
2912 }
2913
2914 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2915 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
2916 pr_err(MPT3SAS_FMT
2917 "%s: host_trace_buffer is not registered\n",
2918 ioc->name, __func__);
2919 return 0;
2920 }
2921
2922 request_data = (struct DIAG_BUFFER_START *)
2923 ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE];
2924 if ((le32_to_cpu(request_data->DiagVersion) == 0x00000000 ||
2925 le32_to_cpu(request_data->DiagVersion) == 0x01000000 ||
2926 le32_to_cpu(request_data->DiagVersion) == 0x01010000) &&
2927 le32_to_cpu(request_data->Reserved3) == 0x4742444c)
2928 size = le32_to_cpu(request_data->Size);
2929
2930 ioc->ring_buffer_sz = size;
2931 return snprintf(buf, PAGE_SIZE, "%d\n", size);
2932 }
2933 static DEVICE_ATTR(host_trace_buffer_size, S_IRUGO,
2934 _ctl_host_trace_buffer_size_show, NULL);
2935
2936 /**
2937 * _ctl_host_trace_buffer_show - firmware ring buffer (trace only)
2938 * @cdev - pointer to embedded class device
2939 * @buf - the buffer returned
2940 *
2941 * A sysfs 'read/write' shost attribute.
2942 *
2943 * You will only be able to read 4k bytes of ring buffer at a time.
2944 * In order to read beyond 4k bytes, you will have to write out the
2945 * offset to the same attribute, it will move the pointer.
2946 */
2947 static ssize_t
2948 _ctl_host_trace_buffer_show(struct device *cdev, struct device_attribute *attr,
2949 char *buf)
2950 {
2951 struct Scsi_Host *shost = class_to_shost(cdev);
2952 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2953 void *request_data;
2954 u32 size;
2955
2956 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
2957 pr_err(MPT3SAS_FMT
2958 "%s: host_trace_buffer is not registered\n",
2959 ioc->name, __func__);
2960 return 0;
2961 }
2962
2963 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2964 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
2965 pr_err(MPT3SAS_FMT
2966 "%s: host_trace_buffer is not registered\n",
2967 ioc->name, __func__);
2968 return 0;
2969 }
2970
2971 if (ioc->ring_buffer_offset > ioc->ring_buffer_sz)
2972 return 0;
2973
2974 size = ioc->ring_buffer_sz - ioc->ring_buffer_offset;
2975 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size;
2976 request_data = ioc->diag_buffer[0] + ioc->ring_buffer_offset;
2977 memcpy(buf, request_data, size);
2978 return size;
2979 }
2980
2981 static ssize_t
2982 _ctl_host_trace_buffer_store(struct device *cdev, struct device_attribute *attr,
2983 const char *buf, size_t count)
2984 {
2985 struct Scsi_Host *shost = class_to_shost(cdev);
2986 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2987 int val = 0;
2988
2989 if (sscanf(buf, "%d", &val) != 1)
2990 return -EINVAL;
2991
2992 ioc->ring_buffer_offset = val;
2993 return strlen(buf);
2994 }
2995 static DEVICE_ATTR(host_trace_buffer, S_IRUGO | S_IWUSR,
2996 _ctl_host_trace_buffer_show, _ctl_host_trace_buffer_store);
2997
2998
2999 /*****************************************/
3000
3001 /**
3002 * _ctl_host_trace_buffer_enable_show - firmware ring buffer (trace only)
3003 * @cdev - pointer to embedded class device
3004 * @buf - the buffer returned
3005 *
3006 * A sysfs 'read/write' shost attribute.
3007 *
3008 * This is a mechnism to post/release host_trace_buffers
3009 */
3010 static ssize_t
3011 _ctl_host_trace_buffer_enable_show(struct device *cdev,
3012 struct device_attribute *attr, char *buf)
3013 {
3014 struct Scsi_Host *shost = class_to_shost(cdev);
3015 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3016
3017 if ((!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) ||
3018 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3019 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0))
3020 return snprintf(buf, PAGE_SIZE, "off\n");
3021 else if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3022 MPT3_DIAG_BUFFER_IS_RELEASED))
3023 return snprintf(buf, PAGE_SIZE, "release\n");
3024 else
3025 return snprintf(buf, PAGE_SIZE, "post\n");
3026 }
3027
3028 static ssize_t
3029 _ctl_host_trace_buffer_enable_store(struct device *cdev,
3030 struct device_attribute *attr, const char *buf, size_t count)
3031 {
3032 struct Scsi_Host *shost = class_to_shost(cdev);
3033 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3034 char str[10] = "";
3035 struct mpt3_diag_register diag_register;
3036 u8 issue_reset = 0;
3037
3038 /* don't allow post/release occurr while recovery is active */
3039 if (ioc->shost_recovery || ioc->remove_host ||
3040 ioc->pci_error_recovery || ioc->is_driver_loading)
3041 return -EBUSY;
3042
3043 if (sscanf(buf, "%9s", str) != 1)
3044 return -EINVAL;
3045
3046 if (!strcmp(str, "post")) {
3047 /* exit out if host buffers are already posted */
3048 if ((ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) &&
3049 (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3050 MPT3_DIAG_BUFFER_IS_REGISTERED) &&
3051 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3052 MPT3_DIAG_BUFFER_IS_RELEASED) == 0))
3053 goto out;
3054 memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
3055 pr_info(MPT3SAS_FMT "posting host trace buffers\n",
3056 ioc->name);
3057 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
3058 diag_register.requested_buffer_size = (1024 * 1024);
3059 diag_register.unique_id = 0x7075900;
3060 ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] = 0;
3061 _ctl_diag_register_2(ioc, &diag_register);
3062 } else if (!strcmp(str, "release")) {
3063 /* exit out if host buffers are already released */
3064 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE])
3065 goto out;
3066 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3067 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0)
3068 goto out;
3069 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3070 MPT3_DIAG_BUFFER_IS_RELEASED))
3071 goto out;
3072 pr_info(MPT3SAS_FMT "releasing host trace buffer\n",
3073 ioc->name);
3074 mpt3sas_send_diag_release(ioc, MPI2_DIAG_BUF_TYPE_TRACE,
3075 &issue_reset);
3076 }
3077
3078 out:
3079 return strlen(buf);
3080 }
3081 static DEVICE_ATTR(host_trace_buffer_enable, S_IRUGO | S_IWUSR,
3082 _ctl_host_trace_buffer_enable_show,
3083 _ctl_host_trace_buffer_enable_store);
3084
3085 /*********** diagnostic trigger suppport *********************************/
3086
3087 /**
3088 * _ctl_diag_trigger_master_show - show the diag_trigger_master attribute
3089 * @cdev - pointer to embedded class device
3090 * @buf - the buffer returned
3091 *
3092 * A sysfs 'read/write' shost attribute.
3093 */
3094 static ssize_t
3095 _ctl_diag_trigger_master_show(struct device *cdev,
3096 struct device_attribute *attr, char *buf)
3097
3098 {
3099 struct Scsi_Host *shost = class_to_shost(cdev);
3100 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3101 unsigned long flags;
3102 ssize_t rc;
3103
3104 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3105 rc = sizeof(struct SL_WH_MASTER_TRIGGER_T);
3106 memcpy(buf, &ioc->diag_trigger_master, rc);
3107 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3108 return rc;
3109 }
3110
3111 /**
3112 * _ctl_diag_trigger_master_store - store the diag_trigger_master attribute
3113 * @cdev - pointer to embedded class device
3114 * @buf - the buffer returned
3115 *
3116 * A sysfs 'read/write' shost attribute.
3117 */
3118 static ssize_t
3119 _ctl_diag_trigger_master_store(struct device *cdev,
3120 struct device_attribute *attr, const char *buf, size_t count)
3121
3122 {
3123 struct Scsi_Host *shost = class_to_shost(cdev);
3124 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3125 unsigned long flags;
3126 ssize_t rc;
3127
3128 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3129 rc = min(sizeof(struct SL_WH_MASTER_TRIGGER_T), count);
3130 memset(&ioc->diag_trigger_master, 0,
3131 sizeof(struct SL_WH_MASTER_TRIGGER_T));
3132 memcpy(&ioc->diag_trigger_master, buf, rc);
3133 ioc->diag_trigger_master.MasterData |=
3134 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
3135 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3136 return rc;
3137 }
3138 static DEVICE_ATTR(diag_trigger_master, S_IRUGO | S_IWUSR,
3139 _ctl_diag_trigger_master_show, _ctl_diag_trigger_master_store);
3140
3141
3142 /**
3143 * _ctl_diag_trigger_event_show - show the diag_trigger_event attribute
3144 * @cdev - pointer to embedded class device
3145 * @buf - the buffer returned
3146 *
3147 * A sysfs 'read/write' shost attribute.
3148 */
3149 static ssize_t
3150 _ctl_diag_trigger_event_show(struct device *cdev,
3151 struct device_attribute *attr, char *buf)
3152 {
3153 struct Scsi_Host *shost = class_to_shost(cdev);
3154 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3155 unsigned long flags;
3156 ssize_t rc;
3157
3158 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3159 rc = sizeof(struct SL_WH_EVENT_TRIGGERS_T);
3160 memcpy(buf, &ioc->diag_trigger_event, rc);
3161 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3162 return rc;
3163 }
3164
3165 /**
3166 * _ctl_diag_trigger_event_store - store the diag_trigger_event attribute
3167 * @cdev - pointer to embedded class device
3168 * @buf - the buffer returned
3169 *
3170 * A sysfs 'read/write' shost attribute.
3171 */
3172 static ssize_t
3173 _ctl_diag_trigger_event_store(struct device *cdev,
3174 struct device_attribute *attr, const char *buf, size_t count)
3175
3176 {
3177 struct Scsi_Host *shost = class_to_shost(cdev);
3178 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3179 unsigned long flags;
3180 ssize_t sz;
3181
3182 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3183 sz = min(sizeof(struct SL_WH_EVENT_TRIGGERS_T), count);
3184 memset(&ioc->diag_trigger_event, 0,
3185 sizeof(struct SL_WH_EVENT_TRIGGERS_T));
3186 memcpy(&ioc->diag_trigger_event, buf, sz);
3187 if (ioc->diag_trigger_event.ValidEntries > NUM_VALID_ENTRIES)
3188 ioc->diag_trigger_event.ValidEntries = NUM_VALID_ENTRIES;
3189 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3190 return sz;
3191 }
3192 static DEVICE_ATTR(diag_trigger_event, S_IRUGO | S_IWUSR,
3193 _ctl_diag_trigger_event_show, _ctl_diag_trigger_event_store);
3194
3195
3196 /**
3197 * _ctl_diag_trigger_scsi_show - show the diag_trigger_scsi attribute
3198 * @cdev - pointer to embedded class device
3199 * @buf - the buffer returned
3200 *
3201 * A sysfs 'read/write' shost attribute.
3202 */
3203 static ssize_t
3204 _ctl_diag_trigger_scsi_show(struct device *cdev,
3205 struct device_attribute *attr, char *buf)
3206 {
3207 struct Scsi_Host *shost = class_to_shost(cdev);
3208 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3209 unsigned long flags;
3210 ssize_t rc;
3211
3212 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3213 rc = sizeof(struct SL_WH_SCSI_TRIGGERS_T);
3214 memcpy(buf, &ioc->diag_trigger_scsi, rc);
3215 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3216 return rc;
3217 }
3218
3219 /**
3220 * _ctl_diag_trigger_scsi_store - store the diag_trigger_scsi attribute
3221 * @cdev - pointer to embedded class device
3222 * @buf - the buffer returned
3223 *
3224 * A sysfs 'read/write' shost attribute.
3225 */
3226 static ssize_t
3227 _ctl_diag_trigger_scsi_store(struct device *cdev,
3228 struct device_attribute *attr, const char *buf, size_t count)
3229 {
3230 struct Scsi_Host *shost = class_to_shost(cdev);
3231 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3232 unsigned long flags;
3233 ssize_t sz;
3234
3235 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3236 sz = min(sizeof(struct SL_WH_SCSI_TRIGGERS_T), count);
3237 memset(&ioc->diag_trigger_scsi, 0,
3238 sizeof(struct SL_WH_EVENT_TRIGGERS_T));
3239 memcpy(&ioc->diag_trigger_scsi, buf, sz);
3240 if (ioc->diag_trigger_scsi.ValidEntries > NUM_VALID_ENTRIES)
3241 ioc->diag_trigger_scsi.ValidEntries = NUM_VALID_ENTRIES;
3242 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3243 return sz;
3244 }
3245 static DEVICE_ATTR(diag_trigger_scsi, S_IRUGO | S_IWUSR,
3246 _ctl_diag_trigger_scsi_show, _ctl_diag_trigger_scsi_store);
3247
3248
3249 /**
3250 * _ctl_diag_trigger_scsi_show - show the diag_trigger_mpi attribute
3251 * @cdev - pointer to embedded class device
3252 * @buf - the buffer returned
3253 *
3254 * A sysfs 'read/write' shost attribute.
3255 */
3256 static ssize_t
3257 _ctl_diag_trigger_mpi_show(struct device *cdev,
3258 struct device_attribute *attr, char *buf)
3259 {
3260 struct Scsi_Host *shost = class_to_shost(cdev);
3261 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3262 unsigned long flags;
3263 ssize_t rc;
3264
3265 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3266 rc = sizeof(struct SL_WH_MPI_TRIGGERS_T);
3267 memcpy(buf, &ioc->diag_trigger_mpi, rc);
3268 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3269 return rc;
3270 }
3271
3272 /**
3273 * _ctl_diag_trigger_mpi_store - store the diag_trigger_mpi attribute
3274 * @cdev - pointer to embedded class device
3275 * @buf - the buffer returned
3276 *
3277 * A sysfs 'read/write' shost attribute.
3278 */
3279 static ssize_t
3280 _ctl_diag_trigger_mpi_store(struct device *cdev,
3281 struct device_attribute *attr, const char *buf, size_t count)
3282 {
3283 struct Scsi_Host *shost = class_to_shost(cdev);
3284 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3285 unsigned long flags;
3286 ssize_t sz;
3287
3288 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3289 sz = min(sizeof(struct SL_WH_MPI_TRIGGERS_T), count);
3290 memset(&ioc->diag_trigger_mpi, 0,
3291 sizeof(ioc->diag_trigger_mpi));
3292 memcpy(&ioc->diag_trigger_mpi, buf, sz);
3293 if (ioc->diag_trigger_mpi.ValidEntries > NUM_VALID_ENTRIES)
3294 ioc->diag_trigger_mpi.ValidEntries = NUM_VALID_ENTRIES;
3295 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3296 return sz;
3297 }
3298
3299 static DEVICE_ATTR(diag_trigger_mpi, S_IRUGO | S_IWUSR,
3300 _ctl_diag_trigger_mpi_show, _ctl_diag_trigger_mpi_store);
3301
3302 /*********** diagnostic trigger suppport *** END ****************************/
3303
3304
3305
3306 /*****************************************/
3307
3308 struct device_attribute *mpt3sas_host_attrs[] = {
3309 &dev_attr_version_fw,
3310 &dev_attr_version_bios,
3311 &dev_attr_version_mpi,
3312 &dev_attr_version_product,
3313 &dev_attr_version_nvdata_persistent,
3314 &dev_attr_version_nvdata_default,
3315 &dev_attr_board_name,
3316 &dev_attr_board_assembly,
3317 &dev_attr_board_tracer,
3318 &dev_attr_io_delay,
3319 &dev_attr_device_delay,
3320 &dev_attr_logging_level,
3321 &dev_attr_fwfault_debug,
3322 &dev_attr_fw_queue_depth,
3323 &dev_attr_host_sas_address,
3324 &dev_attr_ioc_reset_count,
3325 &dev_attr_host_trace_buffer_size,
3326 &dev_attr_host_trace_buffer,
3327 &dev_attr_host_trace_buffer_enable,
3328 &dev_attr_reply_queue_count,
3329 &dev_attr_diag_trigger_master,
3330 &dev_attr_diag_trigger_event,
3331 &dev_attr_diag_trigger_scsi,
3332 &dev_attr_diag_trigger_mpi,
3333 &dev_attr_BRM_status,
3334 NULL,
3335 };
3336
3337 /* device attributes */
3338
3339 /**
3340 * _ctl_device_sas_address_show - sas address
3341 * @cdev - pointer to embedded class device
3342 * @buf - the buffer returned
3343 *
3344 * This is the sas address for the target
3345 *
3346 * A sysfs 'read-only' shost attribute.
3347 */
3348 static ssize_t
3349 _ctl_device_sas_address_show(struct device *dev, struct device_attribute *attr,
3350 char *buf)
3351 {
3352 struct scsi_device *sdev = to_scsi_device(dev);
3353 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3354
3355 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
3356 (unsigned long long)sas_device_priv_data->sas_target->sas_address);
3357 }
3358 static DEVICE_ATTR(sas_address, S_IRUGO, _ctl_device_sas_address_show, NULL);
3359
3360 /**
3361 * _ctl_device_handle_show - device handle
3362 * @cdev - pointer to embedded class device
3363 * @buf - the buffer returned
3364 *
3365 * This is the firmware assigned device handle
3366 *
3367 * A sysfs 'read-only' shost attribute.
3368 */
3369 static ssize_t
3370 _ctl_device_handle_show(struct device *dev, struct device_attribute *attr,
3371 char *buf)
3372 {
3373 struct scsi_device *sdev = to_scsi_device(dev);
3374 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3375
3376 return snprintf(buf, PAGE_SIZE, "0x%04x\n",
3377 sas_device_priv_data->sas_target->handle);
3378 }
3379 static DEVICE_ATTR(sas_device_handle, S_IRUGO, _ctl_device_handle_show, NULL);
3380
3381 struct device_attribute *mpt3sas_dev_attrs[] = {
3382 &dev_attr_sas_address,
3383 &dev_attr_sas_device_handle,
3384 NULL,
3385 };
3386
3387 /* file operations table for mpt3ctl device */
3388 static const struct file_operations ctl_fops = {
3389 .owner = THIS_MODULE,
3390 .unlocked_ioctl = _ctl_ioctl,
3391 .poll = _ctl_poll,
3392 .fasync = _ctl_fasync,
3393 #ifdef CONFIG_COMPAT
3394 .compat_ioctl = _ctl_ioctl_compat,
3395 #endif
3396 };
3397
3398 /* file operations table for mpt2ctl device */
3399 static const struct file_operations ctl_gen2_fops = {
3400 .owner = THIS_MODULE,
3401 .unlocked_ioctl = _ctl_mpt2_ioctl,
3402 .poll = _ctl_poll,
3403 .fasync = _ctl_fasync,
3404 #ifdef CONFIG_COMPAT
3405 .compat_ioctl = _ctl_mpt2_ioctl_compat,
3406 #endif
3407 };
3408
3409 static struct miscdevice ctl_dev = {
3410 .minor = MPT3SAS_MINOR,
3411 .name = MPT3SAS_DEV_NAME,
3412 .fops = &ctl_fops,
3413 };
3414
3415 static struct miscdevice gen2_ctl_dev = {
3416 .minor = MPT2SAS_MINOR,
3417 .name = MPT2SAS_DEV_NAME,
3418 .fops = &ctl_gen2_fops,
3419 };
3420
3421 /**
3422 * mpt3sas_ctl_init - main entry point for ctl.
3423 *
3424 */
3425 void
3426 mpt3sas_ctl_init(ushort hbas_to_enumerate)
3427 {
3428 async_queue = NULL;
3429
3430 /* Don't register mpt3ctl ioctl device if
3431 * hbas_to_enumarate is one.
3432 */
3433 if (hbas_to_enumerate != 1)
3434 if (misc_register(&ctl_dev) < 0)
3435 pr_err("%s can't register misc device [minor=%d]\n",
3436 MPT3SAS_DRIVER_NAME, MPT3SAS_MINOR);
3437
3438 /* Don't register mpt3ctl ioctl device if
3439 * hbas_to_enumarate is two.
3440 */
3441 if (hbas_to_enumerate != 2)
3442 if (misc_register(&gen2_ctl_dev) < 0)
3443 pr_err("%s can't register misc device [minor=%d]\n",
3444 MPT2SAS_DRIVER_NAME, MPT2SAS_MINOR);
3445
3446 init_waitqueue_head(&ctl_poll_wait);
3447 }
3448
3449 /**
3450 * mpt3sas_ctl_exit - exit point for ctl
3451 *
3452 */
3453 void
3454 mpt3sas_ctl_exit(ushort hbas_to_enumerate)
3455 {
3456 struct MPT3SAS_ADAPTER *ioc;
3457 int i;
3458
3459 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
3460
3461 /* free memory associated to diag buffers */
3462 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
3463 if (!ioc->diag_buffer[i])
3464 continue;
3465 if (!(ioc->diag_buffer_status[i] &
3466 MPT3_DIAG_BUFFER_IS_REGISTERED))
3467 continue;
3468 if ((ioc->diag_buffer_status[i] &
3469 MPT3_DIAG_BUFFER_IS_RELEASED))
3470 continue;
3471 pci_free_consistent(ioc->pdev, ioc->diag_buffer_sz[i],
3472 ioc->diag_buffer[i], ioc->diag_buffer_dma[i]);
3473 ioc->diag_buffer[i] = NULL;
3474 ioc->diag_buffer_status[i] = 0;
3475 }
3476
3477 kfree(ioc->event_log);
3478 }
3479 if (hbas_to_enumerate != 1)
3480 misc_deregister(&ctl_dev);
3481 if (hbas_to_enumerate != 2)
3482 misc_deregister(&gen2_ctl_dev);
3483 }
Linux with added FPC-III support