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Merge branches 'for-4.11/upstream-fixes', 'for-4.12/accutouch', 'for-4.12/cp2112...
[mirror_ubuntu-artful-kernel.git] / drivers / scsi / mpt3sas / mpt3sas_ctl.c
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 static 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 static 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 smid;
645 unsigned long timeout;
646 u8 issue_reset;
647 u32 sz;
648 void *psge;
649 void *data_out = NULL;
650 dma_addr_t data_out_dma = 0;
651 size_t data_out_sz = 0;
652 void *data_in = NULL;
653 dma_addr_t data_in_dma = 0;
654 size_t data_in_sz = 0;
655 long ret;
656 u16 wait_state_count;
657 u16 device_handle = MPT3SAS_INVALID_DEVICE_HANDLE;
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 mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT ||
744 mpi_request->Function == MPI2_FUNCTION_SATA_PASSTHROUGH) {
745
746 device_handle = le16_to_cpu(mpi_request->FunctionDependent1);
747 if (!device_handle || (device_handle >
748 ioc->facts.MaxDevHandle)) {
749 ret = -EINVAL;
750 mpt3sas_base_free_smid(ioc, smid);
751 goto out;
752 }
753 }
754
755 /* obtain dma-able memory for data transfer */
756 if (data_out_sz) /* WRITE */ {
757 data_out = pci_alloc_consistent(ioc->pdev, data_out_sz,
758 &data_out_dma);
759 if (!data_out) {
760 pr_err("failure at %s:%d/%s()!\n", __FILE__,
761 __LINE__, __func__);
762 ret = -ENOMEM;
763 mpt3sas_base_free_smid(ioc, smid);
764 goto out;
765 }
766 if (copy_from_user(data_out, karg.data_out_buf_ptr,
767 data_out_sz)) {
768 pr_err("failure at %s:%d/%s()!\n", __FILE__,
769 __LINE__, __func__);
770 ret = -EFAULT;
771 mpt3sas_base_free_smid(ioc, smid);
772 goto out;
773 }
774 }
775
776 if (data_in_sz) /* READ */ {
777 data_in = pci_alloc_consistent(ioc->pdev, data_in_sz,
778 &data_in_dma);
779 if (!data_in) {
780 pr_err("failure at %s:%d/%s()!\n", __FILE__,
781 __LINE__, __func__);
782 ret = -ENOMEM;
783 mpt3sas_base_free_smid(ioc, smid);
784 goto out;
785 }
786 }
787
788 psge = (void *)request + (karg.data_sge_offset*4);
789
790 /* send command to firmware */
791 _ctl_display_some_debug(ioc, smid, "ctl_request", NULL);
792
793 init_completion(&ioc->ctl_cmds.done);
794 switch (mpi_request->Function) {
795 case MPI2_FUNCTION_SCSI_IO_REQUEST:
796 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
797 {
798 Mpi2SCSIIORequest_t *scsiio_request =
799 (Mpi2SCSIIORequest_t *)request;
800 scsiio_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
801 scsiio_request->SenseBufferLowAddress =
802 mpt3sas_base_get_sense_buffer_dma(ioc, smid);
803 memset(ioc->ctl_cmds.sense, 0, SCSI_SENSE_BUFFERSIZE);
804 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
805 dtmprintk(ioc, pr_info(MPT3SAS_FMT
806 "handle(0x%04x) :ioctl failed due to device removal in progress\n",
807 ioc->name, device_handle));
808 mpt3sas_base_free_smid(ioc, smid);
809 ret = -EINVAL;
810 goto out;
811 }
812 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
813 data_in_dma, data_in_sz);
814 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)
815 ioc->put_smid_scsi_io(ioc, smid, device_handle);
816 else
817 ioc->put_smid_default(ioc, smid);
818 break;
819 }
820 case MPI2_FUNCTION_SCSI_TASK_MGMT:
821 {
822 Mpi2SCSITaskManagementRequest_t *tm_request =
823 (Mpi2SCSITaskManagementRequest_t *)request;
824
825 dtmprintk(ioc, pr_info(MPT3SAS_FMT
826 "TASK_MGMT: handle(0x%04x), task_type(0x%02x)\n",
827 ioc->name,
828 le16_to_cpu(tm_request->DevHandle), tm_request->TaskType));
829 ioc->got_task_abort_from_ioctl = 1;
830 if (tm_request->TaskType ==
831 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK ||
832 tm_request->TaskType ==
833 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) {
834 if (_ctl_set_task_mid(ioc, &karg, tm_request)) {
835 mpt3sas_base_free_smid(ioc, smid);
836 ioc->got_task_abort_from_ioctl = 0;
837 goto out;
838 }
839 }
840 ioc->got_task_abort_from_ioctl = 0;
841
842 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
843 dtmprintk(ioc, pr_info(MPT3SAS_FMT
844 "handle(0x%04x) :ioctl failed due to device removal in progress\n",
845 ioc->name, device_handle));
846 mpt3sas_base_free_smid(ioc, smid);
847 ret = -EINVAL;
848 goto out;
849 }
850 mpt3sas_scsih_set_tm_flag(ioc, le16_to_cpu(
851 tm_request->DevHandle));
852 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
853 data_in_dma, data_in_sz);
854 ioc->put_smid_hi_priority(ioc, smid, 0);
855 break;
856 }
857 case MPI2_FUNCTION_SMP_PASSTHROUGH:
858 {
859 Mpi2SmpPassthroughRequest_t *smp_request =
860 (Mpi2SmpPassthroughRequest_t *)mpi_request;
861 u8 *data;
862
863 /* ioc determines which port to use */
864 smp_request->PhysicalPort = 0xFF;
865 if (smp_request->PassthroughFlags &
866 MPI2_SMP_PT_REQ_PT_FLAGS_IMMEDIATE)
867 data = (u8 *)&smp_request->SGL;
868 else {
869 if (unlikely(data_out == NULL)) {
870 pr_err("failure at %s:%d/%s()!\n",
871 __FILE__, __LINE__, __func__);
872 mpt3sas_base_free_smid(ioc, smid);
873 ret = -EINVAL;
874 goto out;
875 }
876 data = data_out;
877 }
878
879 if (data[1] == 0x91 && (data[10] == 1 || data[10] == 2)) {
880 ioc->ioc_link_reset_in_progress = 1;
881 ioc->ignore_loginfos = 1;
882 }
883 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
884 data_in_sz);
885 ioc->put_smid_default(ioc, smid);
886 break;
887 }
888 case MPI2_FUNCTION_SATA_PASSTHROUGH:
889 {
890 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
891 dtmprintk(ioc, pr_info(MPT3SAS_FMT
892 "handle(0x%04x) :ioctl failed due to device removal in progress\n",
893 ioc->name, device_handle));
894 mpt3sas_base_free_smid(ioc, smid);
895 ret = -EINVAL;
896 goto out;
897 }
898 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
899 data_in_sz);
900 ioc->put_smid_default(ioc, smid);
901 break;
902 }
903 case MPI2_FUNCTION_FW_DOWNLOAD:
904 case MPI2_FUNCTION_FW_UPLOAD:
905 {
906 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
907 data_in_sz);
908 ioc->put_smid_default(ioc, smid);
909 break;
910 }
911 case MPI2_FUNCTION_TOOLBOX:
912 {
913 Mpi2ToolboxCleanRequest_t *toolbox_request =
914 (Mpi2ToolboxCleanRequest_t *)mpi_request;
915
916 if (toolbox_request->Tool == MPI2_TOOLBOX_DIAGNOSTIC_CLI_TOOL) {
917 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
918 data_in_dma, data_in_sz);
919 } else {
920 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
921 data_in_dma, data_in_sz);
922 }
923 ioc->put_smid_default(ioc, smid);
924 break;
925 }
926 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
927 {
928 Mpi2SasIoUnitControlRequest_t *sasiounit_request =
929 (Mpi2SasIoUnitControlRequest_t *)mpi_request;
930
931 if (sasiounit_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET
932 || sasiounit_request->Operation ==
933 MPI2_SAS_OP_PHY_LINK_RESET) {
934 ioc->ioc_link_reset_in_progress = 1;
935 ioc->ignore_loginfos = 1;
936 }
937 /* drop to default case for posting the request */
938 }
939 default:
940 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
941 data_in_dma, data_in_sz);
942 ioc->put_smid_default(ioc, smid);
943 break;
944 }
945
946 if (karg.timeout < MPT3_IOCTL_DEFAULT_TIMEOUT)
947 timeout = MPT3_IOCTL_DEFAULT_TIMEOUT;
948 else
949 timeout = karg.timeout;
950 wait_for_completion_timeout(&ioc->ctl_cmds.done, timeout*HZ);
951 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
952 Mpi2SCSITaskManagementRequest_t *tm_request =
953 (Mpi2SCSITaskManagementRequest_t *)mpi_request;
954 mpt3sas_scsih_clear_tm_flag(ioc, le16_to_cpu(
955 tm_request->DevHandle));
956 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
957 } else if ((mpi_request->Function == MPI2_FUNCTION_SMP_PASSTHROUGH ||
958 mpi_request->Function == MPI2_FUNCTION_SAS_IO_UNIT_CONTROL) &&
959 ioc->ioc_link_reset_in_progress) {
960 ioc->ioc_link_reset_in_progress = 0;
961 ioc->ignore_loginfos = 0;
962 }
963 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
964 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
965 __func__);
966 _debug_dump_mf(mpi_request, karg.data_sge_offset);
967 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
968 issue_reset = 1;
969 goto issue_host_reset;
970 }
971
972 mpi_reply = ioc->ctl_cmds.reply;
973
974 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_TASK_MGMT &&
975 (ioc->logging_level & MPT_DEBUG_TM)) {
976 Mpi2SCSITaskManagementReply_t *tm_reply =
977 (Mpi2SCSITaskManagementReply_t *)mpi_reply;
978
979 pr_info(MPT3SAS_FMT "TASK_MGMT: " \
980 "IOCStatus(0x%04x), IOCLogInfo(0x%08x), "
981 "TerminationCount(0x%08x)\n", ioc->name,
982 le16_to_cpu(tm_reply->IOCStatus),
983 le32_to_cpu(tm_reply->IOCLogInfo),
984 le32_to_cpu(tm_reply->TerminationCount));
985 }
986
987 /* copy out xdata to user */
988 if (data_in_sz) {
989 if (copy_to_user(karg.data_in_buf_ptr, data_in,
990 data_in_sz)) {
991 pr_err("failure at %s:%d/%s()!\n", __FILE__,
992 __LINE__, __func__);
993 ret = -ENODATA;
994 goto out;
995 }
996 }
997
998 /* copy out reply message frame to user */
999 if (karg.max_reply_bytes) {
1000 sz = min_t(u32, karg.max_reply_bytes, ioc->reply_sz);
1001 if (copy_to_user(karg.reply_frame_buf_ptr, ioc->ctl_cmds.reply,
1002 sz)) {
1003 pr_err("failure at %s:%d/%s()!\n", __FILE__,
1004 __LINE__, __func__);
1005 ret = -ENODATA;
1006 goto out;
1007 }
1008 }
1009
1010 /* copy out sense to user */
1011 if (karg.max_sense_bytes && (mpi_request->Function ==
1012 MPI2_FUNCTION_SCSI_IO_REQUEST || mpi_request->Function ==
1013 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) {
1014 sz = min_t(u32, karg.max_sense_bytes, SCSI_SENSE_BUFFERSIZE);
1015 if (copy_to_user(karg.sense_data_ptr, ioc->ctl_cmds.sense,
1016 sz)) {
1017 pr_err("failure at %s:%d/%s()!\n", __FILE__,
1018 __LINE__, __func__);
1019 ret = -ENODATA;
1020 goto out;
1021 }
1022 }
1023
1024 issue_host_reset:
1025 if (issue_reset) {
1026 ret = -ENODATA;
1027 if ((mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
1028 mpi_request->Function ==
1029 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
1030 mpi_request->Function == MPI2_FUNCTION_SATA_PASSTHROUGH)) {
1031 pr_info(MPT3SAS_FMT "issue target reset: handle = (0x%04x)\n",
1032 ioc->name,
1033 le16_to_cpu(mpi_request->FunctionDependent1));
1034 mpt3sas_halt_firmware(ioc);
1035 mpt3sas_scsih_issue_locked_tm(ioc,
1036 le16_to_cpu(mpi_request->FunctionDependent1), 0, 0,
1037 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 30);
1038 } else
1039 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1040 }
1041
1042 out:
1043
1044 /* free memory associated with sg buffers */
1045 if (data_in)
1046 pci_free_consistent(ioc->pdev, data_in_sz, data_in,
1047 data_in_dma);
1048
1049 if (data_out)
1050 pci_free_consistent(ioc->pdev, data_out_sz, data_out,
1051 data_out_dma);
1052
1053 kfree(mpi_request);
1054 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1055 return ret;
1056 }
1057
1058 /**
1059 * _ctl_getiocinfo - main handler for MPT3IOCINFO opcode
1060 * @ioc: per adapter object
1061 * @arg - user space buffer containing ioctl content
1062 */
1063 static long
1064 _ctl_getiocinfo(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1065 {
1066 struct mpt3_ioctl_iocinfo karg;
1067
1068 if (copy_from_user(&karg, arg, sizeof(karg))) {
1069 pr_err("failure at %s:%d/%s()!\n",
1070 __FILE__, __LINE__, __func__);
1071 return -EFAULT;
1072 }
1073
1074 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1075 __func__));
1076
1077 memset(&karg, 0 , sizeof(karg));
1078 if (ioc->pfacts)
1079 karg.port_number = ioc->pfacts[0].PortNumber;
1080 karg.hw_rev = ioc->pdev->revision;
1081 karg.pci_id = ioc->pdev->device;
1082 karg.subsystem_device = ioc->pdev->subsystem_device;
1083 karg.subsystem_vendor = ioc->pdev->subsystem_vendor;
1084 karg.pci_information.u.bits.bus = ioc->pdev->bus->number;
1085 karg.pci_information.u.bits.device = PCI_SLOT(ioc->pdev->devfn);
1086 karg.pci_information.u.bits.function = PCI_FUNC(ioc->pdev->devfn);
1087 karg.pci_information.segment_id = pci_domain_nr(ioc->pdev->bus);
1088 karg.firmware_version = ioc->facts.FWVersion.Word;
1089 strcpy(karg.driver_version, ioc->driver_name);
1090 strcat(karg.driver_version, "-");
1091 switch (ioc->hba_mpi_version_belonged) {
1092 case MPI2_VERSION:
1093 if (ioc->is_warpdrive)
1094 karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2_SSS6200;
1095 else
1096 karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2;
1097 strcat(karg.driver_version, MPT2SAS_DRIVER_VERSION);
1098 break;
1099 case MPI25_VERSION:
1100 case MPI26_VERSION:
1101 if (ioc->is_gen35_ioc)
1102 karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS35;
1103 else
1104 karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS3;
1105 strcat(karg.driver_version, MPT3SAS_DRIVER_VERSION);
1106 break;
1107 }
1108 karg.bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
1109
1110 if (copy_to_user(arg, &karg, sizeof(karg))) {
1111 pr_err("failure at %s:%d/%s()!\n",
1112 __FILE__, __LINE__, __func__);
1113 return -EFAULT;
1114 }
1115 return 0;
1116 }
1117
1118 /**
1119 * _ctl_eventquery - main handler for MPT3EVENTQUERY opcode
1120 * @ioc: per adapter object
1121 * @arg - user space buffer containing ioctl content
1122 */
1123 static long
1124 _ctl_eventquery(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1125 {
1126 struct mpt3_ioctl_eventquery karg;
1127
1128 if (copy_from_user(&karg, arg, sizeof(karg))) {
1129 pr_err("failure at %s:%d/%s()!\n",
1130 __FILE__, __LINE__, __func__);
1131 return -EFAULT;
1132 }
1133
1134 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1135 __func__));
1136
1137 karg.event_entries = MPT3SAS_CTL_EVENT_LOG_SIZE;
1138 memcpy(karg.event_types, ioc->event_type,
1139 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1140
1141 if (copy_to_user(arg, &karg, sizeof(karg))) {
1142 pr_err("failure at %s:%d/%s()!\n",
1143 __FILE__, __LINE__, __func__);
1144 return -EFAULT;
1145 }
1146 return 0;
1147 }
1148
1149 /**
1150 * _ctl_eventenable - main handler for MPT3EVENTENABLE opcode
1151 * @ioc: per adapter object
1152 * @arg - user space buffer containing ioctl content
1153 */
1154 static long
1155 _ctl_eventenable(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1156 {
1157 struct mpt3_ioctl_eventenable karg;
1158
1159 if (copy_from_user(&karg, arg, sizeof(karg))) {
1160 pr_err("failure at %s:%d/%s()!\n",
1161 __FILE__, __LINE__, __func__);
1162 return -EFAULT;
1163 }
1164
1165 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1166 __func__));
1167
1168 memcpy(ioc->event_type, karg.event_types,
1169 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1170 mpt3sas_base_validate_event_type(ioc, ioc->event_type);
1171
1172 if (ioc->event_log)
1173 return 0;
1174 /* initialize event_log */
1175 ioc->event_context = 0;
1176 ioc->aen_event_read_flag = 0;
1177 ioc->event_log = kcalloc(MPT3SAS_CTL_EVENT_LOG_SIZE,
1178 sizeof(struct MPT3_IOCTL_EVENTS), GFP_KERNEL);
1179 if (!ioc->event_log) {
1180 pr_err("failure at %s:%d/%s()!\n",
1181 __FILE__, __LINE__, __func__);
1182 return -ENOMEM;
1183 }
1184 return 0;
1185 }
1186
1187 /**
1188 * _ctl_eventreport - main handler for MPT3EVENTREPORT opcode
1189 * @ioc: per adapter object
1190 * @arg - user space buffer containing ioctl content
1191 */
1192 static long
1193 _ctl_eventreport(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1194 {
1195 struct mpt3_ioctl_eventreport karg;
1196 u32 number_bytes, max_events, max;
1197 struct mpt3_ioctl_eventreport __user *uarg = arg;
1198
1199 if (copy_from_user(&karg, arg, sizeof(karg))) {
1200 pr_err("failure at %s:%d/%s()!\n",
1201 __FILE__, __LINE__, __func__);
1202 return -EFAULT;
1203 }
1204
1205 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1206 __func__));
1207
1208 number_bytes = karg.hdr.max_data_size -
1209 sizeof(struct mpt3_ioctl_header);
1210 max_events = number_bytes/sizeof(struct MPT3_IOCTL_EVENTS);
1211 max = min_t(u32, MPT3SAS_CTL_EVENT_LOG_SIZE, max_events);
1212
1213 /* If fewer than 1 event is requested, there must have
1214 * been some type of error.
1215 */
1216 if (!max || !ioc->event_log)
1217 return -ENODATA;
1218
1219 number_bytes = max * sizeof(struct MPT3_IOCTL_EVENTS);
1220 if (copy_to_user(uarg->event_data, ioc->event_log, number_bytes)) {
1221 pr_err("failure at %s:%d/%s()!\n",
1222 __FILE__, __LINE__, __func__);
1223 return -EFAULT;
1224 }
1225
1226 /* reset flag so SIGIO can restart */
1227 ioc->aen_event_read_flag = 0;
1228 return 0;
1229 }
1230
1231 /**
1232 * _ctl_do_reset - main handler for MPT3HARDRESET opcode
1233 * @ioc: per adapter object
1234 * @arg - user space buffer containing ioctl content
1235 */
1236 static long
1237 _ctl_do_reset(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1238 {
1239 struct mpt3_ioctl_diag_reset karg;
1240 int retval;
1241
1242 if (copy_from_user(&karg, arg, sizeof(karg))) {
1243 pr_err("failure at %s:%d/%s()!\n",
1244 __FILE__, __LINE__, __func__);
1245 return -EFAULT;
1246 }
1247
1248 if (ioc->shost_recovery || ioc->pci_error_recovery ||
1249 ioc->is_driver_loading)
1250 return -EAGAIN;
1251
1252 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1253 __func__));
1254
1255 retval = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1256 pr_info(MPT3SAS_FMT "host reset: %s\n",
1257 ioc->name, ((!retval) ? "SUCCESS" : "FAILED"));
1258 return 0;
1259 }
1260
1261 /**
1262 * _ctl_btdh_search_sas_device - searching for sas device
1263 * @ioc: per adapter object
1264 * @btdh: btdh ioctl payload
1265 */
1266 static int
1267 _ctl_btdh_search_sas_device(struct MPT3SAS_ADAPTER *ioc,
1268 struct mpt3_ioctl_btdh_mapping *btdh)
1269 {
1270 struct _sas_device *sas_device;
1271 unsigned long flags;
1272 int rc = 0;
1273
1274 if (list_empty(&ioc->sas_device_list))
1275 return rc;
1276
1277 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1278 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
1279 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1280 btdh->handle == sas_device->handle) {
1281 btdh->bus = sas_device->channel;
1282 btdh->id = sas_device->id;
1283 rc = 1;
1284 goto out;
1285 } else if (btdh->bus == sas_device->channel && btdh->id ==
1286 sas_device->id && btdh->handle == 0xFFFF) {
1287 btdh->handle = sas_device->handle;
1288 rc = 1;
1289 goto out;
1290 }
1291 }
1292 out:
1293 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1294 return rc;
1295 }
1296
1297 /**
1298 * _ctl_btdh_search_raid_device - searching for raid device
1299 * @ioc: per adapter object
1300 * @btdh: btdh ioctl payload
1301 */
1302 static int
1303 _ctl_btdh_search_raid_device(struct MPT3SAS_ADAPTER *ioc,
1304 struct mpt3_ioctl_btdh_mapping *btdh)
1305 {
1306 struct _raid_device *raid_device;
1307 unsigned long flags;
1308 int rc = 0;
1309
1310 if (list_empty(&ioc->raid_device_list))
1311 return rc;
1312
1313 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1314 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
1315 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1316 btdh->handle == raid_device->handle) {
1317 btdh->bus = raid_device->channel;
1318 btdh->id = raid_device->id;
1319 rc = 1;
1320 goto out;
1321 } else if (btdh->bus == raid_device->channel && btdh->id ==
1322 raid_device->id && btdh->handle == 0xFFFF) {
1323 btdh->handle = raid_device->handle;
1324 rc = 1;
1325 goto out;
1326 }
1327 }
1328 out:
1329 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1330 return rc;
1331 }
1332
1333 /**
1334 * _ctl_btdh_mapping - main handler for MPT3BTDHMAPPING opcode
1335 * @ioc: per adapter object
1336 * @arg - user space buffer containing ioctl content
1337 */
1338 static long
1339 _ctl_btdh_mapping(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1340 {
1341 struct mpt3_ioctl_btdh_mapping karg;
1342 int rc;
1343
1344 if (copy_from_user(&karg, arg, sizeof(karg))) {
1345 pr_err("failure at %s:%d/%s()!\n",
1346 __FILE__, __LINE__, __func__);
1347 return -EFAULT;
1348 }
1349
1350 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1351 __func__));
1352
1353 rc = _ctl_btdh_search_sas_device(ioc, &karg);
1354 if (!rc)
1355 _ctl_btdh_search_raid_device(ioc, &karg);
1356
1357 if (copy_to_user(arg, &karg, sizeof(karg))) {
1358 pr_err("failure at %s:%d/%s()!\n",
1359 __FILE__, __LINE__, __func__);
1360 return -EFAULT;
1361 }
1362 return 0;
1363 }
1364
1365 /**
1366 * _ctl_diag_capability - return diag buffer capability
1367 * @ioc: per adapter object
1368 * @buffer_type: specifies either TRACE, SNAPSHOT, or EXTENDED
1369 *
1370 * returns 1 when diag buffer support is enabled in firmware
1371 */
1372 static u8
1373 _ctl_diag_capability(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type)
1374 {
1375 u8 rc = 0;
1376
1377 switch (buffer_type) {
1378 case MPI2_DIAG_BUF_TYPE_TRACE:
1379 if (ioc->facts.IOCCapabilities &
1380 MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER)
1381 rc = 1;
1382 break;
1383 case MPI2_DIAG_BUF_TYPE_SNAPSHOT:
1384 if (ioc->facts.IOCCapabilities &
1385 MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER)
1386 rc = 1;
1387 break;
1388 case MPI2_DIAG_BUF_TYPE_EXTENDED:
1389 if (ioc->facts.IOCCapabilities &
1390 MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER)
1391 rc = 1;
1392 }
1393
1394 return rc;
1395 }
1396
1397
1398 /**
1399 * _ctl_diag_register_2 - wrapper for registering diag buffer support
1400 * @ioc: per adapter object
1401 * @diag_register: the diag_register struct passed in from user space
1402 *
1403 */
1404 static long
1405 _ctl_diag_register_2(struct MPT3SAS_ADAPTER *ioc,
1406 struct mpt3_diag_register *diag_register)
1407 {
1408 int rc, i;
1409 void *request_data = NULL;
1410 dma_addr_t request_data_dma;
1411 u32 request_data_sz = 0;
1412 Mpi2DiagBufferPostRequest_t *mpi_request;
1413 Mpi2DiagBufferPostReply_t *mpi_reply;
1414 u8 buffer_type;
1415 u16 smid;
1416 u16 ioc_status;
1417 u32 ioc_state;
1418 u8 issue_reset = 0;
1419
1420 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1421 __func__));
1422
1423 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1424 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1425 pr_err(MPT3SAS_FMT
1426 "%s: failed due to ioc not operational\n",
1427 ioc->name, __func__);
1428 rc = -EAGAIN;
1429 goto out;
1430 }
1431
1432 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
1433 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
1434 ioc->name, __func__);
1435 rc = -EAGAIN;
1436 goto out;
1437 }
1438
1439 buffer_type = diag_register->buffer_type;
1440 if (!_ctl_diag_capability(ioc, buffer_type)) {
1441 pr_err(MPT3SAS_FMT
1442 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1443 ioc->name, __func__, buffer_type);
1444 return -EPERM;
1445 }
1446
1447 if (ioc->diag_buffer_status[buffer_type] &
1448 MPT3_DIAG_BUFFER_IS_REGISTERED) {
1449 pr_err(MPT3SAS_FMT
1450 "%s: already has a registered buffer for buffer_type(0x%02x)\n",
1451 ioc->name, __func__,
1452 buffer_type);
1453 return -EINVAL;
1454 }
1455
1456 if (diag_register->requested_buffer_size % 4) {
1457 pr_err(MPT3SAS_FMT
1458 "%s: the requested_buffer_size is not 4 byte aligned\n",
1459 ioc->name, __func__);
1460 return -EINVAL;
1461 }
1462
1463 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1464 if (!smid) {
1465 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
1466 ioc->name, __func__);
1467 rc = -EAGAIN;
1468 goto out;
1469 }
1470
1471 rc = 0;
1472 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
1473 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1474 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1475 ioc->ctl_cmds.smid = smid;
1476
1477 request_data = ioc->diag_buffer[buffer_type];
1478 request_data_sz = diag_register->requested_buffer_size;
1479 ioc->unique_id[buffer_type] = diag_register->unique_id;
1480 ioc->diag_buffer_status[buffer_type] = 0;
1481 memcpy(ioc->product_specific[buffer_type],
1482 diag_register->product_specific, MPT3_PRODUCT_SPECIFIC_DWORDS);
1483 ioc->diagnostic_flags[buffer_type] = diag_register->diagnostic_flags;
1484
1485 if (request_data) {
1486 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1487 if (request_data_sz != ioc->diag_buffer_sz[buffer_type]) {
1488 pci_free_consistent(ioc->pdev,
1489 ioc->diag_buffer_sz[buffer_type],
1490 request_data, request_data_dma);
1491 request_data = NULL;
1492 }
1493 }
1494
1495 if (request_data == NULL) {
1496 ioc->diag_buffer_sz[buffer_type] = 0;
1497 ioc->diag_buffer_dma[buffer_type] = 0;
1498 request_data = pci_alloc_consistent(
1499 ioc->pdev, request_data_sz, &request_data_dma);
1500 if (request_data == NULL) {
1501 pr_err(MPT3SAS_FMT "%s: failed allocating memory" \
1502 " for diag buffers, requested size(%d)\n",
1503 ioc->name, __func__, request_data_sz);
1504 mpt3sas_base_free_smid(ioc, smid);
1505 return -ENOMEM;
1506 }
1507 ioc->diag_buffer[buffer_type] = request_data;
1508 ioc->diag_buffer_sz[buffer_type] = request_data_sz;
1509 ioc->diag_buffer_dma[buffer_type] = request_data_dma;
1510 }
1511
1512 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
1513 mpi_request->BufferType = diag_register->buffer_type;
1514 mpi_request->Flags = cpu_to_le32(diag_register->diagnostic_flags);
1515 mpi_request->BufferAddress = cpu_to_le64(request_data_dma);
1516 mpi_request->BufferLength = cpu_to_le32(request_data_sz);
1517 mpi_request->VF_ID = 0; /* TODO */
1518 mpi_request->VP_ID = 0;
1519
1520 dctlprintk(ioc, pr_info(MPT3SAS_FMT
1521 "%s: diag_buffer(0x%p), dma(0x%llx), sz(%d)\n",
1522 ioc->name, __func__, request_data,
1523 (unsigned long long)request_data_dma,
1524 le32_to_cpu(mpi_request->BufferLength)));
1525
1526 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
1527 mpi_request->ProductSpecific[i] =
1528 cpu_to_le32(ioc->product_specific[buffer_type][i]);
1529
1530 init_completion(&ioc->ctl_cmds.done);
1531 ioc->put_smid_default(ioc, smid);
1532 wait_for_completion_timeout(&ioc->ctl_cmds.done,
1533 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
1534
1535 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1536 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
1537 __func__);
1538 _debug_dump_mf(mpi_request,
1539 sizeof(Mpi2DiagBufferPostRequest_t)/4);
1540 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
1541 issue_reset = 1;
1542 goto issue_host_reset;
1543 }
1544
1545 /* process the completed Reply Message Frame */
1546 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
1547 pr_err(MPT3SAS_FMT "%s: no reply message\n",
1548 ioc->name, __func__);
1549 rc = -EFAULT;
1550 goto out;
1551 }
1552
1553 mpi_reply = ioc->ctl_cmds.reply;
1554 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1555
1556 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1557 ioc->diag_buffer_status[buffer_type] |=
1558 MPT3_DIAG_BUFFER_IS_REGISTERED;
1559 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
1560 ioc->name, __func__));
1561 } else {
1562 pr_info(MPT3SAS_FMT
1563 "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
1564 ioc->name, __func__,
1565 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
1566 rc = -EFAULT;
1567 }
1568
1569 issue_host_reset:
1570 if (issue_reset)
1571 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1572
1573 out:
1574
1575 if (rc && request_data)
1576 pci_free_consistent(ioc->pdev, request_data_sz,
1577 request_data, request_data_dma);
1578
1579 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1580 return rc;
1581 }
1582
1583 /**
1584 * mpt3sas_enable_diag_buffer - enabling diag_buffers support driver load time
1585 * @ioc: per adapter object
1586 * @bits_to_register: bitwise field where trace is bit 0, and snapshot is bit 1
1587 *
1588 * This is called when command line option diag_buffer_enable is enabled
1589 * at driver load time.
1590 */
1591 void
1592 mpt3sas_enable_diag_buffer(struct MPT3SAS_ADAPTER *ioc, u8 bits_to_register)
1593 {
1594 struct mpt3_diag_register diag_register;
1595
1596 memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
1597
1598 if (bits_to_register & 1) {
1599 pr_info(MPT3SAS_FMT "registering trace buffer support\n",
1600 ioc->name);
1601 ioc->diag_trigger_master.MasterData =
1602 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
1603 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
1604 /* register for 2MB buffers */
1605 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1606 diag_register.unique_id = 0x7075900;
1607 _ctl_diag_register_2(ioc, &diag_register);
1608 }
1609
1610 if (bits_to_register & 2) {
1611 pr_info(MPT3SAS_FMT "registering snapshot buffer support\n",
1612 ioc->name);
1613 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_SNAPSHOT;
1614 /* register for 2MB buffers */
1615 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1616 diag_register.unique_id = 0x7075901;
1617 _ctl_diag_register_2(ioc, &diag_register);
1618 }
1619
1620 if (bits_to_register & 4) {
1621 pr_info(MPT3SAS_FMT "registering extended buffer support\n",
1622 ioc->name);
1623 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_EXTENDED;
1624 /* register for 2MB buffers */
1625 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1626 diag_register.unique_id = 0x7075901;
1627 _ctl_diag_register_2(ioc, &diag_register);
1628 }
1629 }
1630
1631 /**
1632 * _ctl_diag_register - application register with driver
1633 * @ioc: per adapter object
1634 * @arg - user space buffer containing ioctl content
1635 *
1636 * This will allow the driver to setup any required buffers that will be
1637 * needed by firmware to communicate with the driver.
1638 */
1639 static long
1640 _ctl_diag_register(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1641 {
1642 struct mpt3_diag_register karg;
1643 long rc;
1644
1645 if (copy_from_user(&karg, arg, sizeof(karg))) {
1646 pr_err("failure at %s:%d/%s()!\n",
1647 __FILE__, __LINE__, __func__);
1648 return -EFAULT;
1649 }
1650
1651 rc = _ctl_diag_register_2(ioc, &karg);
1652 return rc;
1653 }
1654
1655 /**
1656 * _ctl_diag_unregister - application unregister with driver
1657 * @ioc: per adapter object
1658 * @arg - user space buffer containing ioctl content
1659 *
1660 * This will allow the driver to cleanup any memory allocated for diag
1661 * messages and to free up any resources.
1662 */
1663 static long
1664 _ctl_diag_unregister(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1665 {
1666 struct mpt3_diag_unregister karg;
1667 void *request_data;
1668 dma_addr_t request_data_dma;
1669 u32 request_data_sz;
1670 u8 buffer_type;
1671
1672 if (copy_from_user(&karg, arg, sizeof(karg))) {
1673 pr_err("failure at %s:%d/%s()!\n",
1674 __FILE__, __LINE__, __func__);
1675 return -EFAULT;
1676 }
1677
1678 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1679 __func__));
1680
1681 buffer_type = karg.unique_id & 0x000000ff;
1682 if (!_ctl_diag_capability(ioc, buffer_type)) {
1683 pr_err(MPT3SAS_FMT
1684 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1685 ioc->name, __func__, buffer_type);
1686 return -EPERM;
1687 }
1688
1689 if ((ioc->diag_buffer_status[buffer_type] &
1690 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1691 pr_err(MPT3SAS_FMT
1692 "%s: buffer_type(0x%02x) is not registered\n",
1693 ioc->name, __func__, buffer_type);
1694 return -EINVAL;
1695 }
1696 if ((ioc->diag_buffer_status[buffer_type] &
1697 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
1698 pr_err(MPT3SAS_FMT
1699 "%s: buffer_type(0x%02x) has not been released\n",
1700 ioc->name, __func__, buffer_type);
1701 return -EINVAL;
1702 }
1703
1704 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1705 pr_err(MPT3SAS_FMT
1706 "%s: unique_id(0x%08x) is not registered\n",
1707 ioc->name, __func__, karg.unique_id);
1708 return -EINVAL;
1709 }
1710
1711 request_data = ioc->diag_buffer[buffer_type];
1712 if (!request_data) {
1713 pr_err(MPT3SAS_FMT
1714 "%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
1715 ioc->name, __func__, buffer_type);
1716 return -ENOMEM;
1717 }
1718
1719 request_data_sz = ioc->diag_buffer_sz[buffer_type];
1720 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1721 pci_free_consistent(ioc->pdev, request_data_sz,
1722 request_data, request_data_dma);
1723 ioc->diag_buffer[buffer_type] = NULL;
1724 ioc->diag_buffer_status[buffer_type] = 0;
1725 return 0;
1726 }
1727
1728 /**
1729 * _ctl_diag_query - query relevant info associated with diag buffers
1730 * @ioc: per adapter object
1731 * @arg - user space buffer containing ioctl content
1732 *
1733 * The application will send only buffer_type and unique_id. Driver will
1734 * inspect unique_id first, if valid, fill in all the info. If unique_id is
1735 * 0x00, the driver will return info specified by Buffer Type.
1736 */
1737 static long
1738 _ctl_diag_query(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1739 {
1740 struct mpt3_diag_query karg;
1741 void *request_data;
1742 int i;
1743 u8 buffer_type;
1744
1745 if (copy_from_user(&karg, arg, sizeof(karg))) {
1746 pr_err("failure at %s:%d/%s()!\n",
1747 __FILE__, __LINE__, __func__);
1748 return -EFAULT;
1749 }
1750
1751 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1752 __func__));
1753
1754 karg.application_flags = 0;
1755 buffer_type = karg.buffer_type;
1756
1757 if (!_ctl_diag_capability(ioc, buffer_type)) {
1758 pr_err(MPT3SAS_FMT
1759 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1760 ioc->name, __func__, buffer_type);
1761 return -EPERM;
1762 }
1763
1764 if ((ioc->diag_buffer_status[buffer_type] &
1765 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1766 pr_err(MPT3SAS_FMT
1767 "%s: buffer_type(0x%02x) is not registered\n",
1768 ioc->name, __func__, buffer_type);
1769 return -EINVAL;
1770 }
1771
1772 if (karg.unique_id & 0xffffff00) {
1773 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1774 pr_err(MPT3SAS_FMT
1775 "%s: unique_id(0x%08x) is not registered\n",
1776 ioc->name, __func__, karg.unique_id);
1777 return -EINVAL;
1778 }
1779 }
1780
1781 request_data = ioc->diag_buffer[buffer_type];
1782 if (!request_data) {
1783 pr_err(MPT3SAS_FMT
1784 "%s: doesn't have buffer for buffer_type(0x%02x)\n",
1785 ioc->name, __func__, buffer_type);
1786 return -ENOMEM;
1787 }
1788
1789 if (ioc->diag_buffer_status[buffer_type] & MPT3_DIAG_BUFFER_IS_RELEASED)
1790 karg.application_flags = (MPT3_APP_FLAGS_APP_OWNED |
1791 MPT3_APP_FLAGS_BUFFER_VALID);
1792 else
1793 karg.application_flags = (MPT3_APP_FLAGS_APP_OWNED |
1794 MPT3_APP_FLAGS_BUFFER_VALID |
1795 MPT3_APP_FLAGS_FW_BUFFER_ACCESS);
1796
1797 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
1798 karg.product_specific[i] =
1799 ioc->product_specific[buffer_type][i];
1800
1801 karg.total_buffer_size = ioc->diag_buffer_sz[buffer_type];
1802 karg.driver_added_buffer_size = 0;
1803 karg.unique_id = ioc->unique_id[buffer_type];
1804 karg.diagnostic_flags = ioc->diagnostic_flags[buffer_type];
1805
1806 if (copy_to_user(arg, &karg, sizeof(struct mpt3_diag_query))) {
1807 pr_err(MPT3SAS_FMT
1808 "%s: unable to write mpt3_diag_query data @ %p\n",
1809 ioc->name, __func__, arg);
1810 return -EFAULT;
1811 }
1812 return 0;
1813 }
1814
1815 /**
1816 * mpt3sas_send_diag_release - Diag Release Message
1817 * @ioc: per adapter object
1818 * @buffer_type - specifies either TRACE, SNAPSHOT, or EXTENDED
1819 * @issue_reset - specifies whether host reset is required.
1820 *
1821 */
1822 int
1823 mpt3sas_send_diag_release(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type,
1824 u8 *issue_reset)
1825 {
1826 Mpi2DiagReleaseRequest_t *mpi_request;
1827 Mpi2DiagReleaseReply_t *mpi_reply;
1828 u16 smid;
1829 u16 ioc_status;
1830 u32 ioc_state;
1831 int rc;
1832
1833 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1834 __func__));
1835
1836 rc = 0;
1837 *issue_reset = 0;
1838
1839 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1840 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1841 if (ioc->diag_buffer_status[buffer_type] &
1842 MPT3_DIAG_BUFFER_IS_REGISTERED)
1843 ioc->diag_buffer_status[buffer_type] |=
1844 MPT3_DIAG_BUFFER_IS_RELEASED;
1845 dctlprintk(ioc, pr_info(MPT3SAS_FMT
1846 "%s: skipping due to FAULT state\n", ioc->name,
1847 __func__));
1848 rc = -EAGAIN;
1849 goto out;
1850 }
1851
1852 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
1853 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
1854 ioc->name, __func__);
1855 rc = -EAGAIN;
1856 goto out;
1857 }
1858
1859 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1860 if (!smid) {
1861 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
1862 ioc->name, __func__);
1863 rc = -EAGAIN;
1864 goto out;
1865 }
1866
1867 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
1868 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1869 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1870 ioc->ctl_cmds.smid = smid;
1871
1872 mpi_request->Function = MPI2_FUNCTION_DIAG_RELEASE;
1873 mpi_request->BufferType = buffer_type;
1874 mpi_request->VF_ID = 0; /* TODO */
1875 mpi_request->VP_ID = 0;
1876
1877 init_completion(&ioc->ctl_cmds.done);
1878 ioc->put_smid_default(ioc, smid);
1879 wait_for_completion_timeout(&ioc->ctl_cmds.done,
1880 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
1881
1882 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1883 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
1884 __func__);
1885 _debug_dump_mf(mpi_request,
1886 sizeof(Mpi2DiagReleaseRequest_t)/4);
1887 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
1888 *issue_reset = 1;
1889 rc = -EFAULT;
1890 goto out;
1891 }
1892
1893 /* process the completed Reply Message Frame */
1894 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
1895 pr_err(MPT3SAS_FMT "%s: no reply message\n",
1896 ioc->name, __func__);
1897 rc = -EFAULT;
1898 goto out;
1899 }
1900
1901 mpi_reply = ioc->ctl_cmds.reply;
1902 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1903
1904 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1905 ioc->diag_buffer_status[buffer_type] |=
1906 MPT3_DIAG_BUFFER_IS_RELEASED;
1907 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
1908 ioc->name, __func__));
1909 } else {
1910 pr_info(MPT3SAS_FMT
1911 "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
1912 ioc->name, __func__,
1913 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
1914 rc = -EFAULT;
1915 }
1916
1917 out:
1918 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1919 return rc;
1920 }
1921
1922 /**
1923 * _ctl_diag_release - request to send Diag Release Message to firmware
1924 * @arg - user space buffer containing ioctl content
1925 *
1926 * This allows ownership of the specified buffer to returned to the driver,
1927 * allowing an application to read the buffer without fear that firmware is
1928 * overwritting information in the buffer.
1929 */
1930 static long
1931 _ctl_diag_release(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1932 {
1933 struct mpt3_diag_release karg;
1934 void *request_data;
1935 int rc;
1936 u8 buffer_type;
1937 u8 issue_reset = 0;
1938
1939 if (copy_from_user(&karg, arg, sizeof(karg))) {
1940 pr_err("failure at %s:%d/%s()!\n",
1941 __FILE__, __LINE__, __func__);
1942 return -EFAULT;
1943 }
1944
1945 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1946 __func__));
1947
1948 buffer_type = karg.unique_id & 0x000000ff;
1949 if (!_ctl_diag_capability(ioc, buffer_type)) {
1950 pr_err(MPT3SAS_FMT
1951 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1952 ioc->name, __func__, buffer_type);
1953 return -EPERM;
1954 }
1955
1956 if ((ioc->diag_buffer_status[buffer_type] &
1957 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1958 pr_err(MPT3SAS_FMT
1959 "%s: buffer_type(0x%02x) is not registered\n",
1960 ioc->name, __func__, buffer_type);
1961 return -EINVAL;
1962 }
1963
1964 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1965 pr_err(MPT3SAS_FMT
1966 "%s: unique_id(0x%08x) is not registered\n",
1967 ioc->name, __func__, karg.unique_id);
1968 return -EINVAL;
1969 }
1970
1971 if (ioc->diag_buffer_status[buffer_type] &
1972 MPT3_DIAG_BUFFER_IS_RELEASED) {
1973 pr_err(MPT3SAS_FMT
1974 "%s: buffer_type(0x%02x) is already released\n",
1975 ioc->name, __func__,
1976 buffer_type);
1977 return 0;
1978 }
1979
1980 request_data = ioc->diag_buffer[buffer_type];
1981
1982 if (!request_data) {
1983 pr_err(MPT3SAS_FMT
1984 "%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
1985 ioc->name, __func__, buffer_type);
1986 return -ENOMEM;
1987 }
1988
1989 /* buffers were released by due to host reset */
1990 if ((ioc->diag_buffer_status[buffer_type] &
1991 MPT3_DIAG_BUFFER_IS_DIAG_RESET)) {
1992 ioc->diag_buffer_status[buffer_type] |=
1993 MPT3_DIAG_BUFFER_IS_RELEASED;
1994 ioc->diag_buffer_status[buffer_type] &=
1995 ~MPT3_DIAG_BUFFER_IS_DIAG_RESET;
1996 pr_err(MPT3SAS_FMT
1997 "%s: buffer_type(0x%02x) was released due to host reset\n",
1998 ioc->name, __func__, buffer_type);
1999 return 0;
2000 }
2001
2002 rc = mpt3sas_send_diag_release(ioc, buffer_type, &issue_reset);
2003
2004 if (issue_reset)
2005 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
2006
2007 return rc;
2008 }
2009
2010 /**
2011 * _ctl_diag_read_buffer - request for copy of the diag buffer
2012 * @ioc: per adapter object
2013 * @arg - user space buffer containing ioctl content
2014 */
2015 static long
2016 _ctl_diag_read_buffer(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
2017 {
2018 struct mpt3_diag_read_buffer karg;
2019 struct mpt3_diag_read_buffer __user *uarg = arg;
2020 void *request_data, *diag_data;
2021 Mpi2DiagBufferPostRequest_t *mpi_request;
2022 Mpi2DiagBufferPostReply_t *mpi_reply;
2023 int rc, i;
2024 u8 buffer_type;
2025 unsigned long request_size, copy_size;
2026 u16 smid;
2027 u16 ioc_status;
2028 u8 issue_reset = 0;
2029
2030 if (copy_from_user(&karg, arg, sizeof(karg))) {
2031 pr_err("failure at %s:%d/%s()!\n",
2032 __FILE__, __LINE__, __func__);
2033 return -EFAULT;
2034 }
2035
2036 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
2037 __func__));
2038
2039 buffer_type = karg.unique_id & 0x000000ff;
2040 if (!_ctl_diag_capability(ioc, buffer_type)) {
2041 pr_err(MPT3SAS_FMT
2042 "%s: doesn't have capability for buffer_type(0x%02x)\n",
2043 ioc->name, __func__, buffer_type);
2044 return -EPERM;
2045 }
2046
2047 if (karg.unique_id != ioc->unique_id[buffer_type]) {
2048 pr_err(MPT3SAS_FMT
2049 "%s: unique_id(0x%08x) is not registered\n",
2050 ioc->name, __func__, karg.unique_id);
2051 return -EINVAL;
2052 }
2053
2054 request_data = ioc->diag_buffer[buffer_type];
2055 if (!request_data) {
2056 pr_err(MPT3SAS_FMT
2057 "%s: doesn't have buffer for buffer_type(0x%02x)\n",
2058 ioc->name, __func__, buffer_type);
2059 return -ENOMEM;
2060 }
2061
2062 request_size = ioc->diag_buffer_sz[buffer_type];
2063
2064 if ((karg.starting_offset % 4) || (karg.bytes_to_read % 4)) {
2065 pr_err(MPT3SAS_FMT "%s: either the starting_offset " \
2066 "or bytes_to_read are not 4 byte aligned\n", ioc->name,
2067 __func__);
2068 return -EINVAL;
2069 }
2070
2071 if (karg.starting_offset > request_size)
2072 return -EINVAL;
2073
2074 diag_data = (void *)(request_data + karg.starting_offset);
2075 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2076 "%s: diag_buffer(%p), offset(%d), sz(%d)\n",
2077 ioc->name, __func__,
2078 diag_data, karg.starting_offset, karg.bytes_to_read));
2079
2080 /* Truncate data on requests that are too large */
2081 if ((diag_data + karg.bytes_to_read < diag_data) ||
2082 (diag_data + karg.bytes_to_read > request_data + request_size))
2083 copy_size = request_size - karg.starting_offset;
2084 else
2085 copy_size = karg.bytes_to_read;
2086
2087 if (copy_to_user((void __user *)uarg->diagnostic_data,
2088 diag_data, copy_size)) {
2089 pr_err(MPT3SAS_FMT
2090 "%s: Unable to write mpt_diag_read_buffer_t data @ %p\n",
2091 ioc->name, __func__, diag_data);
2092 return -EFAULT;
2093 }
2094
2095 if ((karg.flags & MPT3_FLAGS_REREGISTER) == 0)
2096 return 0;
2097
2098 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2099 "%s: Reregister buffer_type(0x%02x)\n",
2100 ioc->name, __func__, buffer_type));
2101 if ((ioc->diag_buffer_status[buffer_type] &
2102 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
2103 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2104 "%s: buffer_type(0x%02x) is still registered\n",
2105 ioc->name, __func__, buffer_type));
2106 return 0;
2107 }
2108 /* Get a free request frame and save the message context.
2109 */
2110
2111 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
2112 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
2113 ioc->name, __func__);
2114 rc = -EAGAIN;
2115 goto out;
2116 }
2117
2118 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
2119 if (!smid) {
2120 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
2121 ioc->name, __func__);
2122 rc = -EAGAIN;
2123 goto out;
2124 }
2125
2126 rc = 0;
2127 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
2128 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
2129 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
2130 ioc->ctl_cmds.smid = smid;
2131
2132 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
2133 mpi_request->BufferType = buffer_type;
2134 mpi_request->BufferLength =
2135 cpu_to_le32(ioc->diag_buffer_sz[buffer_type]);
2136 mpi_request->BufferAddress =
2137 cpu_to_le64(ioc->diag_buffer_dma[buffer_type]);
2138 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
2139 mpi_request->ProductSpecific[i] =
2140 cpu_to_le32(ioc->product_specific[buffer_type][i]);
2141 mpi_request->VF_ID = 0; /* TODO */
2142 mpi_request->VP_ID = 0;
2143
2144 init_completion(&ioc->ctl_cmds.done);
2145 ioc->put_smid_default(ioc, smid);
2146 wait_for_completion_timeout(&ioc->ctl_cmds.done,
2147 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
2148
2149 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
2150 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
2151 __func__);
2152 _debug_dump_mf(mpi_request,
2153 sizeof(Mpi2DiagBufferPostRequest_t)/4);
2154 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
2155 issue_reset = 1;
2156 goto issue_host_reset;
2157 }
2158
2159 /* process the completed Reply Message Frame */
2160 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
2161 pr_err(MPT3SAS_FMT "%s: no reply message\n",
2162 ioc->name, __func__);
2163 rc = -EFAULT;
2164 goto out;
2165 }
2166
2167 mpi_reply = ioc->ctl_cmds.reply;
2168 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
2169
2170 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
2171 ioc->diag_buffer_status[buffer_type] |=
2172 MPT3_DIAG_BUFFER_IS_REGISTERED;
2173 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
2174 ioc->name, __func__));
2175 } else {
2176 pr_info(MPT3SAS_FMT
2177 "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
2178 ioc->name, __func__,
2179 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
2180 rc = -EFAULT;
2181 }
2182
2183 issue_host_reset:
2184 if (issue_reset)
2185 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
2186
2187 out:
2188
2189 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
2190 return rc;
2191 }
2192
2193
2194
2195 #ifdef CONFIG_COMPAT
2196 /**
2197 * _ctl_compat_mpt_command - convert 32bit pointers to 64bit.
2198 * @ioc: per adapter object
2199 * @cmd - ioctl opcode
2200 * @arg - (struct mpt3_ioctl_command32)
2201 *
2202 * MPT3COMMAND32 - Handle 32bit applications running on 64bit os.
2203 */
2204 static long
2205 _ctl_compat_mpt_command(struct MPT3SAS_ADAPTER *ioc, unsigned cmd,
2206 void __user *arg)
2207 {
2208 struct mpt3_ioctl_command32 karg32;
2209 struct mpt3_ioctl_command32 __user *uarg;
2210 struct mpt3_ioctl_command karg;
2211
2212 if (_IOC_SIZE(cmd) != sizeof(struct mpt3_ioctl_command32))
2213 return -EINVAL;
2214
2215 uarg = (struct mpt3_ioctl_command32 __user *) arg;
2216
2217 if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32))) {
2218 pr_err("failure at %s:%d/%s()!\n",
2219 __FILE__, __LINE__, __func__);
2220 return -EFAULT;
2221 }
2222
2223 memset(&karg, 0, sizeof(struct mpt3_ioctl_command));
2224 karg.hdr.ioc_number = karg32.hdr.ioc_number;
2225 karg.hdr.port_number = karg32.hdr.port_number;
2226 karg.hdr.max_data_size = karg32.hdr.max_data_size;
2227 karg.timeout = karg32.timeout;
2228 karg.max_reply_bytes = karg32.max_reply_bytes;
2229 karg.data_in_size = karg32.data_in_size;
2230 karg.data_out_size = karg32.data_out_size;
2231 karg.max_sense_bytes = karg32.max_sense_bytes;
2232 karg.data_sge_offset = karg32.data_sge_offset;
2233 karg.reply_frame_buf_ptr = compat_ptr(karg32.reply_frame_buf_ptr);
2234 karg.data_in_buf_ptr = compat_ptr(karg32.data_in_buf_ptr);
2235 karg.data_out_buf_ptr = compat_ptr(karg32.data_out_buf_ptr);
2236 karg.sense_data_ptr = compat_ptr(karg32.sense_data_ptr);
2237 return _ctl_do_mpt_command(ioc, karg, &uarg->mf);
2238 }
2239 #endif
2240
2241 /**
2242 * _ctl_ioctl_main - main ioctl entry point
2243 * @file - (struct file)
2244 * @cmd - ioctl opcode
2245 * @arg - user space data buffer
2246 * @compat - handles 32 bit applications in 64bit os
2247 * @mpi_version: will be MPI2_VERSION for mpt2ctl ioctl device &
2248 * MPI25_VERSION | MPI26_VERSION for mpt3ctl ioctl device.
2249 */
2250 static long
2251 _ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg,
2252 u8 compat, u16 mpi_version)
2253 {
2254 struct MPT3SAS_ADAPTER *ioc;
2255 struct mpt3_ioctl_header ioctl_header;
2256 enum block_state state;
2257 long ret = -EINVAL;
2258
2259 /* get IOCTL header */
2260 if (copy_from_user(&ioctl_header, (char __user *)arg,
2261 sizeof(struct mpt3_ioctl_header))) {
2262 pr_err("failure at %s:%d/%s()!\n",
2263 __FILE__, __LINE__, __func__);
2264 return -EFAULT;
2265 }
2266
2267 if (_ctl_verify_adapter(ioctl_header.ioc_number,
2268 &ioc, mpi_version) == -1 || !ioc)
2269 return -ENODEV;
2270
2271 /* pci_access_mutex lock acquired by ioctl path */
2272 mutex_lock(&ioc->pci_access_mutex);
2273
2274 if (ioc->shost_recovery || ioc->pci_error_recovery ||
2275 ioc->is_driver_loading || ioc->remove_host) {
2276 ret = -EAGAIN;
2277 goto out_unlock_pciaccess;
2278 }
2279
2280 state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING;
2281 if (state == NON_BLOCKING) {
2282 if (!mutex_trylock(&ioc->ctl_cmds.mutex)) {
2283 ret = -EAGAIN;
2284 goto out_unlock_pciaccess;
2285 }
2286 } else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) {
2287 ret = -ERESTARTSYS;
2288 goto out_unlock_pciaccess;
2289 }
2290
2291
2292 switch (cmd) {
2293 case MPT3IOCINFO:
2294 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_iocinfo))
2295 ret = _ctl_getiocinfo(ioc, arg);
2296 break;
2297 #ifdef CONFIG_COMPAT
2298 case MPT3COMMAND32:
2299 #endif
2300 case MPT3COMMAND:
2301 {
2302 struct mpt3_ioctl_command __user *uarg;
2303 struct mpt3_ioctl_command karg;
2304
2305 #ifdef CONFIG_COMPAT
2306 if (compat) {
2307 ret = _ctl_compat_mpt_command(ioc, cmd, arg);
2308 break;
2309 }
2310 #endif
2311 if (copy_from_user(&karg, arg, sizeof(karg))) {
2312 pr_err("failure at %s:%d/%s()!\n",
2313 __FILE__, __LINE__, __func__);
2314 ret = -EFAULT;
2315 break;
2316 }
2317
2318 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_command)) {
2319 uarg = arg;
2320 ret = _ctl_do_mpt_command(ioc, karg, &uarg->mf);
2321 }
2322 break;
2323 }
2324 case MPT3EVENTQUERY:
2325 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventquery))
2326 ret = _ctl_eventquery(ioc, arg);
2327 break;
2328 case MPT3EVENTENABLE:
2329 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventenable))
2330 ret = _ctl_eventenable(ioc, arg);
2331 break;
2332 case MPT3EVENTREPORT:
2333 ret = _ctl_eventreport(ioc, arg);
2334 break;
2335 case MPT3HARDRESET:
2336 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_diag_reset))
2337 ret = _ctl_do_reset(ioc, arg);
2338 break;
2339 case MPT3BTDHMAPPING:
2340 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_btdh_mapping))
2341 ret = _ctl_btdh_mapping(ioc, arg);
2342 break;
2343 case MPT3DIAGREGISTER:
2344 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_register))
2345 ret = _ctl_diag_register(ioc, arg);
2346 break;
2347 case MPT3DIAGUNREGISTER:
2348 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_unregister))
2349 ret = _ctl_diag_unregister(ioc, arg);
2350 break;
2351 case MPT3DIAGQUERY:
2352 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_query))
2353 ret = _ctl_diag_query(ioc, arg);
2354 break;
2355 case MPT3DIAGRELEASE:
2356 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_release))
2357 ret = _ctl_diag_release(ioc, arg);
2358 break;
2359 case MPT3DIAGREADBUFFER:
2360 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_read_buffer))
2361 ret = _ctl_diag_read_buffer(ioc, arg);
2362 break;
2363 default:
2364 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2365 "unsupported ioctl opcode(0x%08x)\n", ioc->name, cmd));
2366 break;
2367 }
2368
2369 mutex_unlock(&ioc->ctl_cmds.mutex);
2370 out_unlock_pciaccess:
2371 mutex_unlock(&ioc->pci_access_mutex);
2372 return ret;
2373 }
2374
2375 /**
2376 * _ctl_ioctl - mpt3ctl main ioctl entry point (unlocked)
2377 * @file - (struct file)
2378 * @cmd - ioctl opcode
2379 * @arg -
2380 */
2381 static long
2382 _ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2383 {
2384 long ret;
2385
2386 /* pass MPI25_VERSION | MPI26_VERSION value,
2387 * to indicate that this ioctl cmd
2388 * came from mpt3ctl ioctl device.
2389 */
2390 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0,
2391 MPI25_VERSION | MPI26_VERSION);
2392 return ret;
2393 }
2394
2395 /**
2396 * _ctl_mpt2_ioctl - mpt2ctl main ioctl entry point (unlocked)
2397 * @file - (struct file)
2398 * @cmd - ioctl opcode
2399 * @arg -
2400 */
2401 static long
2402 _ctl_mpt2_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2403 {
2404 long ret;
2405
2406 /* pass MPI2_VERSION value, to indicate that this ioctl cmd
2407 * came from mpt2ctl ioctl device.
2408 */
2409 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0, MPI2_VERSION);
2410 return ret;
2411 }
2412 #ifdef CONFIG_COMPAT
2413 /**
2414 *_ ctl_ioctl_compat - main ioctl entry point (compat)
2415 * @file -
2416 * @cmd -
2417 * @arg -
2418 *
2419 * This routine handles 32 bit applications in 64bit os.
2420 */
2421 static long
2422 _ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
2423 {
2424 long ret;
2425
2426 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1,
2427 MPI25_VERSION | MPI26_VERSION);
2428 return ret;
2429 }
2430
2431 /**
2432 *_ ctl_mpt2_ioctl_compat - main ioctl entry point (compat)
2433 * @file -
2434 * @cmd -
2435 * @arg -
2436 *
2437 * This routine handles 32 bit applications in 64bit os.
2438 */
2439 static long
2440 _ctl_mpt2_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
2441 {
2442 long ret;
2443
2444 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1, MPI2_VERSION);
2445 return ret;
2446 }
2447 #endif
2448
2449 /* scsi host attributes */
2450 /**
2451 * _ctl_version_fw_show - firmware version
2452 * @cdev - pointer to embedded class device
2453 * @buf - the buffer returned
2454 *
2455 * A sysfs 'read-only' shost attribute.
2456 */
2457 static ssize_t
2458 _ctl_version_fw_show(struct device *cdev, struct device_attribute *attr,
2459 char *buf)
2460 {
2461 struct Scsi_Host *shost = class_to_shost(cdev);
2462 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2463
2464 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2465 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
2466 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
2467 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
2468 ioc->facts.FWVersion.Word & 0x000000FF);
2469 }
2470 static DEVICE_ATTR(version_fw, S_IRUGO, _ctl_version_fw_show, NULL);
2471
2472 /**
2473 * _ctl_version_bios_show - bios version
2474 * @cdev - pointer to embedded class device
2475 * @buf - the buffer returned
2476 *
2477 * A sysfs 'read-only' shost attribute.
2478 */
2479 static ssize_t
2480 _ctl_version_bios_show(struct device *cdev, struct device_attribute *attr,
2481 char *buf)
2482 {
2483 struct Scsi_Host *shost = class_to_shost(cdev);
2484 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2485
2486 u32 version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
2487
2488 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2489 (version & 0xFF000000) >> 24,
2490 (version & 0x00FF0000) >> 16,
2491 (version & 0x0000FF00) >> 8,
2492 version & 0x000000FF);
2493 }
2494 static DEVICE_ATTR(version_bios, S_IRUGO, _ctl_version_bios_show, NULL);
2495
2496 /**
2497 * _ctl_version_mpi_show - MPI (message passing interface) version
2498 * @cdev - pointer to embedded class device
2499 * @buf - the buffer returned
2500 *
2501 * A sysfs 'read-only' shost attribute.
2502 */
2503 static ssize_t
2504 _ctl_version_mpi_show(struct device *cdev, struct device_attribute *attr,
2505 char *buf)
2506 {
2507 struct Scsi_Host *shost = class_to_shost(cdev);
2508 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2509
2510 return snprintf(buf, PAGE_SIZE, "%03x.%02x\n",
2511 ioc->facts.MsgVersion, ioc->facts.HeaderVersion >> 8);
2512 }
2513 static DEVICE_ATTR(version_mpi, S_IRUGO, _ctl_version_mpi_show, NULL);
2514
2515 /**
2516 * _ctl_version_product_show - product name
2517 * @cdev - pointer to embedded class device
2518 * @buf - the buffer returned
2519 *
2520 * A sysfs 'read-only' shost attribute.
2521 */
2522 static ssize_t
2523 _ctl_version_product_show(struct device *cdev, struct device_attribute *attr,
2524 char *buf)
2525 {
2526 struct Scsi_Host *shost = class_to_shost(cdev);
2527 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2528
2529 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.ChipName);
2530 }
2531 static DEVICE_ATTR(version_product, S_IRUGO, _ctl_version_product_show, NULL);
2532
2533 /**
2534 * _ctl_version_nvdata_persistent_show - ndvata persistent version
2535 * @cdev - pointer to embedded class device
2536 * @buf - the buffer returned
2537 *
2538 * A sysfs 'read-only' shost attribute.
2539 */
2540 static ssize_t
2541 _ctl_version_nvdata_persistent_show(struct device *cdev,
2542 struct device_attribute *attr, char *buf)
2543 {
2544 struct Scsi_Host *shost = class_to_shost(cdev);
2545 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2546
2547 return snprintf(buf, PAGE_SIZE, "%08xh\n",
2548 le32_to_cpu(ioc->iounit_pg0.NvdataVersionPersistent.Word));
2549 }
2550 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
2551 _ctl_version_nvdata_persistent_show, NULL);
2552
2553 /**
2554 * _ctl_version_nvdata_default_show - nvdata default version
2555 * @cdev - pointer to embedded class device
2556 * @buf - the buffer returned
2557 *
2558 * A sysfs 'read-only' shost attribute.
2559 */
2560 static ssize_t
2561 _ctl_version_nvdata_default_show(struct device *cdev, struct device_attribute
2562 *attr, char *buf)
2563 {
2564 struct Scsi_Host *shost = class_to_shost(cdev);
2565 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2566
2567 return snprintf(buf, PAGE_SIZE, "%08xh\n",
2568 le32_to_cpu(ioc->iounit_pg0.NvdataVersionDefault.Word));
2569 }
2570 static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
2571 _ctl_version_nvdata_default_show, NULL);
2572
2573 /**
2574 * _ctl_board_name_show - board name
2575 * @cdev - pointer to embedded class device
2576 * @buf - the buffer returned
2577 *
2578 * A sysfs 'read-only' shost attribute.
2579 */
2580 static ssize_t
2581 _ctl_board_name_show(struct device *cdev, struct device_attribute *attr,
2582 char *buf)
2583 {
2584 struct Scsi_Host *shost = class_to_shost(cdev);
2585 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2586
2587 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardName);
2588 }
2589 static DEVICE_ATTR(board_name, S_IRUGO, _ctl_board_name_show, NULL);
2590
2591 /**
2592 * _ctl_board_assembly_show - board assembly name
2593 * @cdev - pointer to embedded class device
2594 * @buf - the buffer returned
2595 *
2596 * A sysfs 'read-only' shost attribute.
2597 */
2598 static ssize_t
2599 _ctl_board_assembly_show(struct device *cdev, struct device_attribute *attr,
2600 char *buf)
2601 {
2602 struct Scsi_Host *shost = class_to_shost(cdev);
2603 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2604
2605 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardAssembly);
2606 }
2607 static DEVICE_ATTR(board_assembly, S_IRUGO, _ctl_board_assembly_show, NULL);
2608
2609 /**
2610 * _ctl_board_tracer_show - board tracer number
2611 * @cdev - pointer to embedded class device
2612 * @buf - the buffer returned
2613 *
2614 * A sysfs 'read-only' shost attribute.
2615 */
2616 static ssize_t
2617 _ctl_board_tracer_show(struct device *cdev, struct device_attribute *attr,
2618 char *buf)
2619 {
2620 struct Scsi_Host *shost = class_to_shost(cdev);
2621 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2622
2623 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardTracerNumber);
2624 }
2625 static DEVICE_ATTR(board_tracer, S_IRUGO, _ctl_board_tracer_show, NULL);
2626
2627 /**
2628 * _ctl_io_delay_show - io missing delay
2629 * @cdev - pointer to embedded class device
2630 * @buf - the buffer returned
2631 *
2632 * This is for firmware implemention for deboucing device
2633 * removal events.
2634 *
2635 * A sysfs 'read-only' shost attribute.
2636 */
2637 static ssize_t
2638 _ctl_io_delay_show(struct device *cdev, struct device_attribute *attr,
2639 char *buf)
2640 {
2641 struct Scsi_Host *shost = class_to_shost(cdev);
2642 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2643
2644 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
2645 }
2646 static DEVICE_ATTR(io_delay, S_IRUGO, _ctl_io_delay_show, NULL);
2647
2648 /**
2649 * _ctl_device_delay_show - device missing delay
2650 * @cdev - pointer to embedded class device
2651 * @buf - the buffer returned
2652 *
2653 * This is for firmware implemention for deboucing device
2654 * removal events.
2655 *
2656 * A sysfs 'read-only' shost attribute.
2657 */
2658 static ssize_t
2659 _ctl_device_delay_show(struct device *cdev, struct device_attribute *attr,
2660 char *buf)
2661 {
2662 struct Scsi_Host *shost = class_to_shost(cdev);
2663 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2664
2665 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
2666 }
2667 static DEVICE_ATTR(device_delay, S_IRUGO, _ctl_device_delay_show, NULL);
2668
2669 /**
2670 * _ctl_fw_queue_depth_show - global credits
2671 * @cdev - pointer to embedded class device
2672 * @buf - the buffer returned
2673 *
2674 * This is firmware queue depth limit
2675 *
2676 * A sysfs 'read-only' shost attribute.
2677 */
2678 static ssize_t
2679 _ctl_fw_queue_depth_show(struct device *cdev, struct device_attribute *attr,
2680 char *buf)
2681 {
2682 struct Scsi_Host *shost = class_to_shost(cdev);
2683 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2684
2685 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->facts.RequestCredit);
2686 }
2687 static DEVICE_ATTR(fw_queue_depth, S_IRUGO, _ctl_fw_queue_depth_show, NULL);
2688
2689 /**
2690 * _ctl_sas_address_show - sas address
2691 * @cdev - pointer to embedded class device
2692 * @buf - the buffer returned
2693 *
2694 * This is the controller sas address
2695 *
2696 * A sysfs 'read-only' shost attribute.
2697 */
2698 static ssize_t
2699 _ctl_host_sas_address_show(struct device *cdev, struct device_attribute *attr,
2700 char *buf)
2701
2702 {
2703 struct Scsi_Host *shost = class_to_shost(cdev);
2704 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2705
2706 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
2707 (unsigned long long)ioc->sas_hba.sas_address);
2708 }
2709 static DEVICE_ATTR(host_sas_address, S_IRUGO,
2710 _ctl_host_sas_address_show, NULL);
2711
2712 /**
2713 * _ctl_logging_level_show - logging level
2714 * @cdev - pointer to embedded class device
2715 * @buf - the buffer returned
2716 *
2717 * A sysfs 'read/write' shost attribute.
2718 */
2719 static ssize_t
2720 _ctl_logging_level_show(struct device *cdev, struct device_attribute *attr,
2721 char *buf)
2722 {
2723 struct Scsi_Host *shost = class_to_shost(cdev);
2724 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2725
2726 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->logging_level);
2727 }
2728 static ssize_t
2729 _ctl_logging_level_store(struct device *cdev, struct device_attribute *attr,
2730 const char *buf, size_t count)
2731 {
2732 struct Scsi_Host *shost = class_to_shost(cdev);
2733 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2734 int val = 0;
2735
2736 if (sscanf(buf, "%x", &val) != 1)
2737 return -EINVAL;
2738
2739 ioc->logging_level = val;
2740 pr_info(MPT3SAS_FMT "logging_level=%08xh\n", ioc->name,
2741 ioc->logging_level);
2742 return strlen(buf);
2743 }
2744 static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR, _ctl_logging_level_show,
2745 _ctl_logging_level_store);
2746
2747 /**
2748 * _ctl_fwfault_debug_show - show/store fwfault_debug
2749 * @cdev - pointer to embedded class device
2750 * @buf - the buffer returned
2751 *
2752 * mpt3sas_fwfault_debug is command line option
2753 * A sysfs 'read/write' shost attribute.
2754 */
2755 static ssize_t
2756 _ctl_fwfault_debug_show(struct device *cdev, struct device_attribute *attr,
2757 char *buf)
2758 {
2759 struct Scsi_Host *shost = class_to_shost(cdev);
2760 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2761
2762 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->fwfault_debug);
2763 }
2764 static ssize_t
2765 _ctl_fwfault_debug_store(struct device *cdev, struct device_attribute *attr,
2766 const char *buf, size_t count)
2767 {
2768 struct Scsi_Host *shost = class_to_shost(cdev);
2769 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2770 int val = 0;
2771
2772 if (sscanf(buf, "%d", &val) != 1)
2773 return -EINVAL;
2774
2775 ioc->fwfault_debug = val;
2776 pr_info(MPT3SAS_FMT "fwfault_debug=%d\n", ioc->name,
2777 ioc->fwfault_debug);
2778 return strlen(buf);
2779 }
2780 static DEVICE_ATTR(fwfault_debug, S_IRUGO | S_IWUSR,
2781 _ctl_fwfault_debug_show, _ctl_fwfault_debug_store);
2782
2783 /**
2784 * _ctl_ioc_reset_count_show - ioc reset count
2785 * @cdev - pointer to embedded class device
2786 * @buf - the buffer returned
2787 *
2788 * This is firmware queue depth limit
2789 *
2790 * A sysfs 'read-only' shost attribute.
2791 */
2792 static ssize_t
2793 _ctl_ioc_reset_count_show(struct device *cdev, struct device_attribute *attr,
2794 char *buf)
2795 {
2796 struct Scsi_Host *shost = class_to_shost(cdev);
2797 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2798
2799 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->ioc_reset_count);
2800 }
2801 static DEVICE_ATTR(ioc_reset_count, S_IRUGO, _ctl_ioc_reset_count_show, NULL);
2802
2803 /**
2804 * _ctl_ioc_reply_queue_count_show - number of reply queues
2805 * @cdev - pointer to embedded class device
2806 * @buf - the buffer returned
2807 *
2808 * This is number of reply queues
2809 *
2810 * A sysfs 'read-only' shost attribute.
2811 */
2812 static ssize_t
2813 _ctl_ioc_reply_queue_count_show(struct device *cdev,
2814 struct device_attribute *attr, char *buf)
2815 {
2816 u8 reply_queue_count;
2817 struct Scsi_Host *shost = class_to_shost(cdev);
2818 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2819
2820 if ((ioc->facts.IOCCapabilities &
2821 MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX) && ioc->msix_enable)
2822 reply_queue_count = ioc->reply_queue_count;
2823 else
2824 reply_queue_count = 1;
2825
2826 return snprintf(buf, PAGE_SIZE, "%d\n", reply_queue_count);
2827 }
2828 static DEVICE_ATTR(reply_queue_count, S_IRUGO, _ctl_ioc_reply_queue_count_show,
2829 NULL);
2830
2831 /**
2832 * _ctl_BRM_status_show - Backup Rail Monitor Status
2833 * @cdev - pointer to embedded class device
2834 * @buf - the buffer returned
2835 *
2836 * This is number of reply queues
2837 *
2838 * A sysfs 'read-only' shost attribute.
2839 */
2840 static ssize_t
2841 _ctl_BRM_status_show(struct device *cdev, struct device_attribute *attr,
2842 char *buf)
2843 {
2844 struct Scsi_Host *shost = class_to_shost(cdev);
2845 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2846 Mpi2IOUnitPage3_t *io_unit_pg3 = NULL;
2847 Mpi2ConfigReply_t mpi_reply;
2848 u16 backup_rail_monitor_status = 0;
2849 u16 ioc_status;
2850 int sz;
2851 ssize_t rc = 0;
2852
2853 if (!ioc->is_warpdrive) {
2854 pr_err(MPT3SAS_FMT "%s: BRM attribute is only for"
2855 " warpdrive\n", ioc->name, __func__);
2856 goto out;
2857 }
2858 /* pci_access_mutex lock acquired by sysfs show path */
2859 mutex_lock(&ioc->pci_access_mutex);
2860 if (ioc->pci_error_recovery || ioc->remove_host) {
2861 mutex_unlock(&ioc->pci_access_mutex);
2862 return 0;
2863 }
2864
2865 /* allocate upto GPIOVal 36 entries */
2866 sz = offsetof(Mpi2IOUnitPage3_t, GPIOVal) + (sizeof(u16) * 36);
2867 io_unit_pg3 = kzalloc(sz, GFP_KERNEL);
2868 if (!io_unit_pg3) {
2869 pr_err(MPT3SAS_FMT "%s: failed allocating memory "
2870 "for iounit_pg3: (%d) bytes\n", ioc->name, __func__, sz);
2871 goto out;
2872 }
2873
2874 if (mpt3sas_config_get_iounit_pg3(ioc, &mpi_reply, io_unit_pg3, sz) !=
2875 0) {
2876 pr_err(MPT3SAS_FMT
2877 "%s: failed reading iounit_pg3\n", ioc->name,
2878 __func__);
2879 goto out;
2880 }
2881
2882 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
2883 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
2884 pr_err(MPT3SAS_FMT "%s: iounit_pg3 failed with "
2885 "ioc_status(0x%04x)\n", ioc->name, __func__, ioc_status);
2886 goto out;
2887 }
2888
2889 if (io_unit_pg3->GPIOCount < 25) {
2890 pr_err(MPT3SAS_FMT "%s: iounit_pg3->GPIOCount less than "
2891 "25 entries, detected (%d) entries\n", ioc->name, __func__,
2892 io_unit_pg3->GPIOCount);
2893 goto out;
2894 }
2895
2896 /* BRM status is in bit zero of GPIOVal[24] */
2897 backup_rail_monitor_status = le16_to_cpu(io_unit_pg3->GPIOVal[24]);
2898 rc = snprintf(buf, PAGE_SIZE, "%d\n", (backup_rail_monitor_status & 1));
2899
2900 out:
2901 kfree(io_unit_pg3);
2902 mutex_unlock(&ioc->pci_access_mutex);
2903 return rc;
2904 }
2905 static DEVICE_ATTR(BRM_status, S_IRUGO, _ctl_BRM_status_show, NULL);
2906
2907 struct DIAG_BUFFER_START {
2908 __le32 Size;
2909 __le32 DiagVersion;
2910 u8 BufferType;
2911 u8 Reserved[3];
2912 __le32 Reserved1;
2913 __le32 Reserved2;
2914 __le32 Reserved3;
2915 };
2916
2917 /**
2918 * _ctl_host_trace_buffer_size_show - host buffer size (trace only)
2919 * @cdev - pointer to embedded class device
2920 * @buf - the buffer returned
2921 *
2922 * A sysfs 'read-only' shost attribute.
2923 */
2924 static ssize_t
2925 _ctl_host_trace_buffer_size_show(struct device *cdev,
2926 struct device_attribute *attr, char *buf)
2927 {
2928 struct Scsi_Host *shost = class_to_shost(cdev);
2929 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2930 u32 size = 0;
2931 struct DIAG_BUFFER_START *request_data;
2932
2933 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
2934 pr_err(MPT3SAS_FMT
2935 "%s: host_trace_buffer is not registered\n",
2936 ioc->name, __func__);
2937 return 0;
2938 }
2939
2940 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2941 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
2942 pr_err(MPT3SAS_FMT
2943 "%s: host_trace_buffer is not registered\n",
2944 ioc->name, __func__);
2945 return 0;
2946 }
2947
2948 request_data = (struct DIAG_BUFFER_START *)
2949 ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE];
2950 if ((le32_to_cpu(request_data->DiagVersion) == 0x00000000 ||
2951 le32_to_cpu(request_data->DiagVersion) == 0x01000000 ||
2952 le32_to_cpu(request_data->DiagVersion) == 0x01010000) &&
2953 le32_to_cpu(request_data->Reserved3) == 0x4742444c)
2954 size = le32_to_cpu(request_data->Size);
2955
2956 ioc->ring_buffer_sz = size;
2957 return snprintf(buf, PAGE_SIZE, "%d\n", size);
2958 }
2959 static DEVICE_ATTR(host_trace_buffer_size, S_IRUGO,
2960 _ctl_host_trace_buffer_size_show, NULL);
2961
2962 /**
2963 * _ctl_host_trace_buffer_show - firmware ring buffer (trace only)
2964 * @cdev - pointer to embedded class device
2965 * @buf - the buffer returned
2966 *
2967 * A sysfs 'read/write' shost attribute.
2968 *
2969 * You will only be able to read 4k bytes of ring buffer at a time.
2970 * In order to read beyond 4k bytes, you will have to write out the
2971 * offset to the same attribute, it will move the pointer.
2972 */
2973 static ssize_t
2974 _ctl_host_trace_buffer_show(struct device *cdev, struct device_attribute *attr,
2975 char *buf)
2976 {
2977 struct Scsi_Host *shost = class_to_shost(cdev);
2978 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2979 void *request_data;
2980 u32 size;
2981
2982 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
2983 pr_err(MPT3SAS_FMT
2984 "%s: host_trace_buffer is not registered\n",
2985 ioc->name, __func__);
2986 return 0;
2987 }
2988
2989 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2990 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
2991 pr_err(MPT3SAS_FMT
2992 "%s: host_trace_buffer is not registered\n",
2993 ioc->name, __func__);
2994 return 0;
2995 }
2996
2997 if (ioc->ring_buffer_offset > ioc->ring_buffer_sz)
2998 return 0;
2999
3000 size = ioc->ring_buffer_sz - ioc->ring_buffer_offset;
3001 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size;
3002 request_data = ioc->diag_buffer[0] + ioc->ring_buffer_offset;
3003 memcpy(buf, request_data, size);
3004 return size;
3005 }
3006
3007 static ssize_t
3008 _ctl_host_trace_buffer_store(struct device *cdev, struct device_attribute *attr,
3009 const char *buf, size_t count)
3010 {
3011 struct Scsi_Host *shost = class_to_shost(cdev);
3012 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3013 int val = 0;
3014
3015 if (sscanf(buf, "%d", &val) != 1)
3016 return -EINVAL;
3017
3018 ioc->ring_buffer_offset = val;
3019 return strlen(buf);
3020 }
3021 static DEVICE_ATTR(host_trace_buffer, S_IRUGO | S_IWUSR,
3022 _ctl_host_trace_buffer_show, _ctl_host_trace_buffer_store);
3023
3024
3025 /*****************************************/
3026
3027 /**
3028 * _ctl_host_trace_buffer_enable_show - firmware ring buffer (trace only)
3029 * @cdev - pointer to embedded class device
3030 * @buf - the buffer returned
3031 *
3032 * A sysfs 'read/write' shost attribute.
3033 *
3034 * This is a mechnism to post/release host_trace_buffers
3035 */
3036 static ssize_t
3037 _ctl_host_trace_buffer_enable_show(struct device *cdev,
3038 struct device_attribute *attr, char *buf)
3039 {
3040 struct Scsi_Host *shost = class_to_shost(cdev);
3041 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3042
3043 if ((!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) ||
3044 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3045 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0))
3046 return snprintf(buf, PAGE_SIZE, "off\n");
3047 else if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3048 MPT3_DIAG_BUFFER_IS_RELEASED))
3049 return snprintf(buf, PAGE_SIZE, "release\n");
3050 else
3051 return snprintf(buf, PAGE_SIZE, "post\n");
3052 }
3053
3054 static ssize_t
3055 _ctl_host_trace_buffer_enable_store(struct device *cdev,
3056 struct device_attribute *attr, const char *buf, size_t count)
3057 {
3058 struct Scsi_Host *shost = class_to_shost(cdev);
3059 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3060 char str[10] = "";
3061 struct mpt3_diag_register diag_register;
3062 u8 issue_reset = 0;
3063
3064 /* don't allow post/release occurr while recovery is active */
3065 if (ioc->shost_recovery || ioc->remove_host ||
3066 ioc->pci_error_recovery || ioc->is_driver_loading)
3067 return -EBUSY;
3068
3069 if (sscanf(buf, "%9s", str) != 1)
3070 return -EINVAL;
3071
3072 if (!strcmp(str, "post")) {
3073 /* exit out if host buffers are already posted */
3074 if ((ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) &&
3075 (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3076 MPT3_DIAG_BUFFER_IS_REGISTERED) &&
3077 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3078 MPT3_DIAG_BUFFER_IS_RELEASED) == 0))
3079 goto out;
3080 memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
3081 pr_info(MPT3SAS_FMT "posting host trace buffers\n",
3082 ioc->name);
3083 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
3084 diag_register.requested_buffer_size = (1024 * 1024);
3085 diag_register.unique_id = 0x7075900;
3086 ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] = 0;
3087 _ctl_diag_register_2(ioc, &diag_register);
3088 } else if (!strcmp(str, "release")) {
3089 /* exit out if host buffers are already released */
3090 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE])
3091 goto out;
3092 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3093 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0)
3094 goto out;
3095 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3096 MPT3_DIAG_BUFFER_IS_RELEASED))
3097 goto out;
3098 pr_info(MPT3SAS_FMT "releasing host trace buffer\n",
3099 ioc->name);
3100 mpt3sas_send_diag_release(ioc, MPI2_DIAG_BUF_TYPE_TRACE,
3101 &issue_reset);
3102 }
3103
3104 out:
3105 return strlen(buf);
3106 }
3107 static DEVICE_ATTR(host_trace_buffer_enable, S_IRUGO | S_IWUSR,
3108 _ctl_host_trace_buffer_enable_show,
3109 _ctl_host_trace_buffer_enable_store);
3110
3111 /*********** diagnostic trigger suppport *********************************/
3112
3113 /**
3114 * _ctl_diag_trigger_master_show - show the diag_trigger_master attribute
3115 * @cdev - pointer to embedded class device
3116 * @buf - the buffer returned
3117 *
3118 * A sysfs 'read/write' shost attribute.
3119 */
3120 static ssize_t
3121 _ctl_diag_trigger_master_show(struct device *cdev,
3122 struct device_attribute *attr, char *buf)
3123
3124 {
3125 struct Scsi_Host *shost = class_to_shost(cdev);
3126 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3127 unsigned long flags;
3128 ssize_t rc;
3129
3130 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3131 rc = sizeof(struct SL_WH_MASTER_TRIGGER_T);
3132 memcpy(buf, &ioc->diag_trigger_master, rc);
3133 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3134 return rc;
3135 }
3136
3137 /**
3138 * _ctl_diag_trigger_master_store - store the diag_trigger_master attribute
3139 * @cdev - pointer to embedded class device
3140 * @buf - the buffer returned
3141 *
3142 * A sysfs 'read/write' shost attribute.
3143 */
3144 static ssize_t
3145 _ctl_diag_trigger_master_store(struct device *cdev,
3146 struct device_attribute *attr, const char *buf, size_t count)
3147
3148 {
3149 struct Scsi_Host *shost = class_to_shost(cdev);
3150 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3151 unsigned long flags;
3152 ssize_t rc;
3153
3154 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3155 rc = min(sizeof(struct SL_WH_MASTER_TRIGGER_T), count);
3156 memset(&ioc->diag_trigger_master, 0,
3157 sizeof(struct SL_WH_MASTER_TRIGGER_T));
3158 memcpy(&ioc->diag_trigger_master, buf, rc);
3159 ioc->diag_trigger_master.MasterData |=
3160 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
3161 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3162 return rc;
3163 }
3164 static DEVICE_ATTR(diag_trigger_master, S_IRUGO | S_IWUSR,
3165 _ctl_diag_trigger_master_show, _ctl_diag_trigger_master_store);
3166
3167
3168 /**
3169 * _ctl_diag_trigger_event_show - show the diag_trigger_event attribute
3170 * @cdev - pointer to embedded class device
3171 * @buf - the buffer returned
3172 *
3173 * A sysfs 'read/write' shost attribute.
3174 */
3175 static ssize_t
3176 _ctl_diag_trigger_event_show(struct device *cdev,
3177 struct device_attribute *attr, char *buf)
3178 {
3179 struct Scsi_Host *shost = class_to_shost(cdev);
3180 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3181 unsigned long flags;
3182 ssize_t rc;
3183
3184 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3185 rc = sizeof(struct SL_WH_EVENT_TRIGGERS_T);
3186 memcpy(buf, &ioc->diag_trigger_event, rc);
3187 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3188 return rc;
3189 }
3190
3191 /**
3192 * _ctl_diag_trigger_event_store - store the diag_trigger_event attribute
3193 * @cdev - pointer to embedded class device
3194 * @buf - the buffer returned
3195 *
3196 * A sysfs 'read/write' shost attribute.
3197 */
3198 static ssize_t
3199 _ctl_diag_trigger_event_store(struct device *cdev,
3200 struct device_attribute *attr, const char *buf, size_t count)
3201
3202 {
3203 struct Scsi_Host *shost = class_to_shost(cdev);
3204 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3205 unsigned long flags;
3206 ssize_t sz;
3207
3208 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3209 sz = min(sizeof(struct SL_WH_EVENT_TRIGGERS_T), count);
3210 memset(&ioc->diag_trigger_event, 0,
3211 sizeof(struct SL_WH_EVENT_TRIGGERS_T));
3212 memcpy(&ioc->diag_trigger_event, buf, sz);
3213 if (ioc->diag_trigger_event.ValidEntries > NUM_VALID_ENTRIES)
3214 ioc->diag_trigger_event.ValidEntries = NUM_VALID_ENTRIES;
3215 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3216 return sz;
3217 }
3218 static DEVICE_ATTR(diag_trigger_event, S_IRUGO | S_IWUSR,
3219 _ctl_diag_trigger_event_show, _ctl_diag_trigger_event_store);
3220
3221
3222 /**
3223 * _ctl_diag_trigger_scsi_show - show the diag_trigger_scsi attribute
3224 * @cdev - pointer to embedded class device
3225 * @buf - the buffer returned
3226 *
3227 * A sysfs 'read/write' shost attribute.
3228 */
3229 static ssize_t
3230 _ctl_diag_trigger_scsi_show(struct device *cdev,
3231 struct device_attribute *attr, char *buf)
3232 {
3233 struct Scsi_Host *shost = class_to_shost(cdev);
3234 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3235 unsigned long flags;
3236 ssize_t rc;
3237
3238 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3239 rc = sizeof(struct SL_WH_SCSI_TRIGGERS_T);
3240 memcpy(buf, &ioc->diag_trigger_scsi, rc);
3241 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3242 return rc;
3243 }
3244
3245 /**
3246 * _ctl_diag_trigger_scsi_store - store the diag_trigger_scsi attribute
3247 * @cdev - pointer to embedded class device
3248 * @buf - the buffer returned
3249 *
3250 * A sysfs 'read/write' shost attribute.
3251 */
3252 static ssize_t
3253 _ctl_diag_trigger_scsi_store(struct device *cdev,
3254 struct device_attribute *attr, const char *buf, size_t count)
3255 {
3256 struct Scsi_Host *shost = class_to_shost(cdev);
3257 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3258 unsigned long flags;
3259 ssize_t sz;
3260
3261 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3262 sz = min(sizeof(struct SL_WH_SCSI_TRIGGERS_T), count);
3263 memset(&ioc->diag_trigger_scsi, 0,
3264 sizeof(struct SL_WH_EVENT_TRIGGERS_T));
3265 memcpy(&ioc->diag_trigger_scsi, buf, sz);
3266 if (ioc->diag_trigger_scsi.ValidEntries > NUM_VALID_ENTRIES)
3267 ioc->diag_trigger_scsi.ValidEntries = NUM_VALID_ENTRIES;
3268 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3269 return sz;
3270 }
3271 static DEVICE_ATTR(diag_trigger_scsi, S_IRUGO | S_IWUSR,
3272 _ctl_diag_trigger_scsi_show, _ctl_diag_trigger_scsi_store);
3273
3274
3275 /**
3276 * _ctl_diag_trigger_scsi_show - show the diag_trigger_mpi attribute
3277 * @cdev - pointer to embedded class device
3278 * @buf - the buffer returned
3279 *
3280 * A sysfs 'read/write' shost attribute.
3281 */
3282 static ssize_t
3283 _ctl_diag_trigger_mpi_show(struct device *cdev,
3284 struct device_attribute *attr, char *buf)
3285 {
3286 struct Scsi_Host *shost = class_to_shost(cdev);
3287 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3288 unsigned long flags;
3289 ssize_t rc;
3290
3291 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3292 rc = sizeof(struct SL_WH_MPI_TRIGGERS_T);
3293 memcpy(buf, &ioc->diag_trigger_mpi, rc);
3294 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3295 return rc;
3296 }
3297
3298 /**
3299 * _ctl_diag_trigger_mpi_store - store the diag_trigger_mpi attribute
3300 * @cdev - pointer to embedded class device
3301 * @buf - the buffer returned
3302 *
3303 * A sysfs 'read/write' shost attribute.
3304 */
3305 static ssize_t
3306 _ctl_diag_trigger_mpi_store(struct device *cdev,
3307 struct device_attribute *attr, const char *buf, size_t count)
3308 {
3309 struct Scsi_Host *shost = class_to_shost(cdev);
3310 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3311 unsigned long flags;
3312 ssize_t sz;
3313
3314 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3315 sz = min(sizeof(struct SL_WH_MPI_TRIGGERS_T), count);
3316 memset(&ioc->diag_trigger_mpi, 0,
3317 sizeof(ioc->diag_trigger_mpi));
3318 memcpy(&ioc->diag_trigger_mpi, buf, sz);
3319 if (ioc->diag_trigger_mpi.ValidEntries > NUM_VALID_ENTRIES)
3320 ioc->diag_trigger_mpi.ValidEntries = NUM_VALID_ENTRIES;
3321 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3322 return sz;
3323 }
3324
3325 static DEVICE_ATTR(diag_trigger_mpi, S_IRUGO | S_IWUSR,
3326 _ctl_diag_trigger_mpi_show, _ctl_diag_trigger_mpi_store);
3327
3328 /*********** diagnostic trigger suppport *** END ****************************/
3329
3330 /*****************************************/
3331
3332 struct device_attribute *mpt3sas_host_attrs[] = {
3333 &dev_attr_version_fw,
3334 &dev_attr_version_bios,
3335 &dev_attr_version_mpi,
3336 &dev_attr_version_product,
3337 &dev_attr_version_nvdata_persistent,
3338 &dev_attr_version_nvdata_default,
3339 &dev_attr_board_name,
3340 &dev_attr_board_assembly,
3341 &dev_attr_board_tracer,
3342 &dev_attr_io_delay,
3343 &dev_attr_device_delay,
3344 &dev_attr_logging_level,
3345 &dev_attr_fwfault_debug,
3346 &dev_attr_fw_queue_depth,
3347 &dev_attr_host_sas_address,
3348 &dev_attr_ioc_reset_count,
3349 &dev_attr_host_trace_buffer_size,
3350 &dev_attr_host_trace_buffer,
3351 &dev_attr_host_trace_buffer_enable,
3352 &dev_attr_reply_queue_count,
3353 &dev_attr_diag_trigger_master,
3354 &dev_attr_diag_trigger_event,
3355 &dev_attr_diag_trigger_scsi,
3356 &dev_attr_diag_trigger_mpi,
3357 &dev_attr_BRM_status,
3358 NULL,
3359 };
3360
3361 /* device attributes */
3362
3363 /**
3364 * _ctl_device_sas_address_show - sas address
3365 * @cdev - pointer to embedded class device
3366 * @buf - the buffer returned
3367 *
3368 * This is the sas address for the target
3369 *
3370 * A sysfs 'read-only' shost attribute.
3371 */
3372 static ssize_t
3373 _ctl_device_sas_address_show(struct device *dev, struct device_attribute *attr,
3374 char *buf)
3375 {
3376 struct scsi_device *sdev = to_scsi_device(dev);
3377 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3378
3379 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
3380 (unsigned long long)sas_device_priv_data->sas_target->sas_address);
3381 }
3382 static DEVICE_ATTR(sas_address, S_IRUGO, _ctl_device_sas_address_show, NULL);
3383
3384 /**
3385 * _ctl_device_handle_show - device handle
3386 * @cdev - pointer to embedded class device
3387 * @buf - the buffer returned
3388 *
3389 * This is the firmware assigned device handle
3390 *
3391 * A sysfs 'read-only' shost attribute.
3392 */
3393 static ssize_t
3394 _ctl_device_handle_show(struct device *dev, struct device_attribute *attr,
3395 char *buf)
3396 {
3397 struct scsi_device *sdev = to_scsi_device(dev);
3398 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3399
3400 return snprintf(buf, PAGE_SIZE, "0x%04x\n",
3401 sas_device_priv_data->sas_target->handle);
3402 }
3403 static DEVICE_ATTR(sas_device_handle, S_IRUGO, _ctl_device_handle_show, NULL);
3404
3405 /**
3406 * _ctl_device_ncq_io_prio_show - send prioritized io commands to device
3407 * @dev - pointer to embedded device
3408 * @buf - the buffer returned
3409 *
3410 * A sysfs 'read/write' sdev attribute, only works with SATA
3411 */
3412 static ssize_t
3413 _ctl_device_ncq_prio_enable_show(struct device *dev,
3414 struct device_attribute *attr, char *buf)
3415 {
3416 struct scsi_device *sdev = to_scsi_device(dev);
3417 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3418
3419 return snprintf(buf, PAGE_SIZE, "%d\n",
3420 sas_device_priv_data->ncq_prio_enable);
3421 }
3422
3423 static ssize_t
3424 _ctl_device_ncq_prio_enable_store(struct device *dev,
3425 struct device_attribute *attr,
3426 const char *buf, size_t count)
3427 {
3428 struct scsi_device *sdev = to_scsi_device(dev);
3429 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3430 bool ncq_prio_enable = 0;
3431
3432 if (kstrtobool(buf, &ncq_prio_enable))
3433 return -EINVAL;
3434
3435 if (!scsih_ncq_prio_supp(sdev))
3436 return -EINVAL;
3437
3438 sas_device_priv_data->ncq_prio_enable = ncq_prio_enable;
3439 return strlen(buf);
3440 }
3441 static DEVICE_ATTR(sas_ncq_prio_enable, S_IRUGO | S_IWUSR,
3442 _ctl_device_ncq_prio_enable_show,
3443 _ctl_device_ncq_prio_enable_store);
3444
3445 struct device_attribute *mpt3sas_dev_attrs[] = {
3446 &dev_attr_sas_address,
3447 &dev_attr_sas_device_handle,
3448 &dev_attr_sas_ncq_prio_enable,
3449 NULL,
3450 };
3451
3452 /* file operations table for mpt3ctl device */
3453 static const struct file_operations ctl_fops = {
3454 .owner = THIS_MODULE,
3455 .unlocked_ioctl = _ctl_ioctl,
3456 .poll = _ctl_poll,
3457 .fasync = _ctl_fasync,
3458 #ifdef CONFIG_COMPAT
3459 .compat_ioctl = _ctl_ioctl_compat,
3460 #endif
3461 };
3462
3463 /* file operations table for mpt2ctl device */
3464 static const struct file_operations ctl_gen2_fops = {
3465 .owner = THIS_MODULE,
3466 .unlocked_ioctl = _ctl_mpt2_ioctl,
3467 .poll = _ctl_poll,
3468 .fasync = _ctl_fasync,
3469 #ifdef CONFIG_COMPAT
3470 .compat_ioctl = _ctl_mpt2_ioctl_compat,
3471 #endif
3472 };
3473
3474 static struct miscdevice ctl_dev = {
3475 .minor = MPT3SAS_MINOR,
3476 .name = MPT3SAS_DEV_NAME,
3477 .fops = &ctl_fops,
3478 };
3479
3480 static struct miscdevice gen2_ctl_dev = {
3481 .minor = MPT2SAS_MINOR,
3482 .name = MPT2SAS_DEV_NAME,
3483 .fops = &ctl_gen2_fops,
3484 };
3485
3486 /**
3487 * mpt3sas_ctl_init - main entry point for ctl.
3488 *
3489 */
3490 void
3491 mpt3sas_ctl_init(ushort hbas_to_enumerate)
3492 {
3493 async_queue = NULL;
3494
3495 /* Don't register mpt3ctl ioctl device if
3496 * hbas_to_enumarate is one.
3497 */
3498 if (hbas_to_enumerate != 1)
3499 if (misc_register(&ctl_dev) < 0)
3500 pr_err("%s can't register misc device [minor=%d]\n",
3501 MPT3SAS_DRIVER_NAME, MPT3SAS_MINOR);
3502
3503 /* Don't register mpt3ctl ioctl device if
3504 * hbas_to_enumarate is two.
3505 */
3506 if (hbas_to_enumerate != 2)
3507 if (misc_register(&gen2_ctl_dev) < 0)
3508 pr_err("%s can't register misc device [minor=%d]\n",
3509 MPT2SAS_DRIVER_NAME, MPT2SAS_MINOR);
3510
3511 init_waitqueue_head(&ctl_poll_wait);
3512 }
3513
3514 /**
3515 * mpt3sas_ctl_exit - exit point for ctl
3516 *
3517 */
3518 void
3519 mpt3sas_ctl_exit(ushort hbas_to_enumerate)
3520 {
3521 struct MPT3SAS_ADAPTER *ioc;
3522 int i;
3523
3524 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
3525
3526 /* free memory associated to diag buffers */
3527 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
3528 if (!ioc->diag_buffer[i])
3529 continue;
3530 if (!(ioc->diag_buffer_status[i] &
3531 MPT3_DIAG_BUFFER_IS_REGISTERED))
3532 continue;
3533 if ((ioc->diag_buffer_status[i] &
3534 MPT3_DIAG_BUFFER_IS_RELEASED))
3535 continue;
3536 pci_free_consistent(ioc->pdev, ioc->diag_buffer_sz[i],
3537 ioc->diag_buffer[i], ioc->diag_buffer_dma[i]);
3538 ioc->diag_buffer[i] = NULL;
3539 ioc->diag_buffer_status[i] = 0;
3540 }
3541
3542 kfree(ioc->event_log);
3543 }
3544 if (hbas_to_enumerate != 1)
3545 misc_deregister(&ctl_dev);
3546 if (hbas_to_enumerate != 2)
3547 misc_deregister(&gen2_ctl_dev);
3548 }
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