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Linux 4.16.11
[linux/fpc-iii.git] / drivers / scsi / mpt3sas / mpt3sas_ctl.c
blob523971aeb4c171aa5baa60893e0e038313983cd0
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_display_some_debug - debug routine
83 * @ioc: per adapter object
84 * @smid: system request message index
85 * @calling_function_name: string pass from calling function
86 * @mpi_reply: reply message frame
87 * Context: none.
88 *
89 * Function for displaying debug info helpful when debugging issues
90 * in this module.
91 */
92 static void
93 _ctl_display_some_debug(struct MPT3SAS_ADAPTER *ioc, u16 smid,
94 char *calling_function_name, MPI2DefaultReply_t *mpi_reply)
95 {
96 Mpi2ConfigRequest_t *mpi_request;
97 char *desc = NULL;
98
99 if (!(ioc->logging_level & MPT_DEBUG_IOCTL))
100 return;
101
102 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
103 switch (mpi_request->Function) {
104 case MPI2_FUNCTION_SCSI_IO_REQUEST:
105 {
106 Mpi2SCSIIORequest_t *scsi_request =
107 (Mpi2SCSIIORequest_t *)mpi_request;
108
109 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
110 "scsi_io, cmd(0x%02x), cdb_len(%d)",
111 scsi_request->CDB.CDB32[0],
112 le16_to_cpu(scsi_request->IoFlags) & 0xF);
113 desc = ioc->tmp_string;
114 break;
115 }
116 case MPI2_FUNCTION_SCSI_TASK_MGMT:
117 desc = "task_mgmt";
118 break;
119 case MPI2_FUNCTION_IOC_INIT:
120 desc = "ioc_init";
121 break;
122 case MPI2_FUNCTION_IOC_FACTS:
123 desc = "ioc_facts";
124 break;
125 case MPI2_FUNCTION_CONFIG:
126 {
127 Mpi2ConfigRequest_t *config_request =
128 (Mpi2ConfigRequest_t *)mpi_request;
129
130 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
131 "config, type(0x%02x), ext_type(0x%02x), number(%d)",
132 (config_request->Header.PageType &
133 MPI2_CONFIG_PAGETYPE_MASK), config_request->ExtPageType,
134 config_request->Header.PageNumber);
135 desc = ioc->tmp_string;
136 break;
137 }
138 case MPI2_FUNCTION_PORT_FACTS:
139 desc = "port_facts";
140 break;
141 case MPI2_FUNCTION_PORT_ENABLE:
142 desc = "port_enable";
143 break;
144 case MPI2_FUNCTION_EVENT_NOTIFICATION:
145 desc = "event_notification";
146 break;
147 case MPI2_FUNCTION_FW_DOWNLOAD:
148 desc = "fw_download";
149 break;
150 case MPI2_FUNCTION_FW_UPLOAD:
151 desc = "fw_upload";
152 break;
153 case MPI2_FUNCTION_RAID_ACTION:
154 desc = "raid_action";
155 break;
156 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
157 {
158 Mpi2SCSIIORequest_t *scsi_request =
159 (Mpi2SCSIIORequest_t *)mpi_request;
160
161 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
162 "raid_pass, cmd(0x%02x), cdb_len(%d)",
163 scsi_request->CDB.CDB32[0],
164 le16_to_cpu(scsi_request->IoFlags) & 0xF);
165 desc = ioc->tmp_string;
166 break;
167 }
168 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
169 desc = "sas_iounit_cntl";
170 break;
171 case MPI2_FUNCTION_SATA_PASSTHROUGH:
172 desc = "sata_pass";
173 break;
174 case MPI2_FUNCTION_DIAG_BUFFER_POST:
175 desc = "diag_buffer_post";
176 break;
177 case MPI2_FUNCTION_DIAG_RELEASE:
178 desc = "diag_release";
179 break;
180 case MPI2_FUNCTION_SMP_PASSTHROUGH:
181 desc = "smp_passthrough";
182 break;
183 }
184
185 if (!desc)
186 return;
187
188 pr_info(MPT3SAS_FMT "%s: %s, smid(%d)\n",
189 ioc->name, calling_function_name, desc, smid);
190
191 if (!mpi_reply)
192 return;
193
194 if (mpi_reply->IOCStatus || mpi_reply->IOCLogInfo)
195 pr_info(MPT3SAS_FMT
196 "\tiocstatus(0x%04x), loginfo(0x%08x)\n",
197 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
198 le32_to_cpu(mpi_reply->IOCLogInfo));
199
200 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
201 mpi_request->Function ==
202 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
203 Mpi2SCSIIOReply_t *scsi_reply =
204 (Mpi2SCSIIOReply_t *)mpi_reply;
205 struct _sas_device *sas_device = NULL;
206 struct _pcie_device *pcie_device = NULL;
207
208 sas_device = mpt3sas_get_sdev_by_handle(ioc,
209 le16_to_cpu(scsi_reply->DevHandle));
210 if (sas_device) {
211 pr_warn(MPT3SAS_FMT "\tsas_address(0x%016llx), phy(%d)\n",
212 ioc->name, (unsigned long long)
213 sas_device->sas_address, sas_device->phy);
214 pr_warn(MPT3SAS_FMT
215 "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
216 ioc->name, (unsigned long long)
217 sas_device->enclosure_logical_id, sas_device->slot);
218 sas_device_put(sas_device);
219 }
220 if (!sas_device) {
221 pcie_device = mpt3sas_get_pdev_by_handle(ioc,
222 le16_to_cpu(scsi_reply->DevHandle));
223 if (pcie_device) {
224 pr_warn(MPT3SAS_FMT
225 "\tWWID(0x%016llx), port(%d)\n", ioc->name,
226 (unsigned long long)pcie_device->wwid,
227 pcie_device->port_num);
228 if (pcie_device->enclosure_handle != 0)
229 pr_warn(MPT3SAS_FMT
230 "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
231 ioc->name, (unsigned long long)
232 pcie_device->enclosure_logical_id,
233 pcie_device->slot);
234 pcie_device_put(pcie_device);
235 }
236 }
237 if (scsi_reply->SCSIState || scsi_reply->SCSIStatus)
238 pr_info(MPT3SAS_FMT
239 "\tscsi_state(0x%02x), scsi_status"
240 "(0x%02x)\n", ioc->name,
241 scsi_reply->SCSIState,
242 scsi_reply->SCSIStatus);
243 }
244 }
245
246 /**
247 * mpt3sas_ctl_done - ctl module completion routine
248 * @ioc: per adapter object
249 * @smid: system request message index
250 * @msix_index: MSIX table index supplied by the OS
251 * @reply: reply message frame(lower 32bit addr)
252 * Context: none.
253 *
254 * The callback handler when using ioc->ctl_cb_idx.
255 *
256 * Return 1 meaning mf should be freed from _base_interrupt
257 * 0 means the mf is freed from this function.
258 */
259 u8
260 mpt3sas_ctl_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
261 u32 reply)
262 {
263 MPI2DefaultReply_t *mpi_reply;
264 Mpi2SCSIIOReply_t *scsiio_reply;
265 Mpi26NVMeEncapsulatedErrorReply_t *nvme_error_reply;
266 const void *sense_data;
267 u32 sz;
268
269 if (ioc->ctl_cmds.status == MPT3_CMD_NOT_USED)
270 return 1;
271 if (ioc->ctl_cmds.smid != smid)
272 return 1;
273 ioc->ctl_cmds.status |= MPT3_CMD_COMPLETE;
274 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
275 if (mpi_reply) {
276 memcpy(ioc->ctl_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
277 ioc->ctl_cmds.status |= MPT3_CMD_REPLY_VALID;
278 /* get sense data */
279 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
280 mpi_reply->Function ==
281 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
282 scsiio_reply = (Mpi2SCSIIOReply_t *)mpi_reply;
283 if (scsiio_reply->SCSIState &
284 MPI2_SCSI_STATE_AUTOSENSE_VALID) {
285 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
286 le32_to_cpu(scsiio_reply->SenseCount));
287 sense_data = mpt3sas_base_get_sense_buffer(ioc,
288 smid);
289 memcpy(ioc->ctl_cmds.sense, sense_data, sz);
290 }
291 }
292 /*
293 * Get Error Response data for NVMe device. The ctl_cmds.sense
294 * buffer is used to store the Error Response data.
295 */
296 if (mpi_reply->Function == MPI2_FUNCTION_NVME_ENCAPSULATED) {
297 nvme_error_reply =
298 (Mpi26NVMeEncapsulatedErrorReply_t *)mpi_reply;
299 sz = min_t(u32, NVME_ERROR_RESPONSE_SIZE,
300 le32_to_cpu(nvme_error_reply->ErrorResponseCount));
301 sense_data = mpt3sas_base_get_sense_buffer(ioc, smid);
302 memcpy(ioc->ctl_cmds.sense, sense_data, sz);
303 }
304 }
305
306 _ctl_display_some_debug(ioc, smid, "ctl_done", mpi_reply);
307 ioc->ctl_cmds.status &= ~MPT3_CMD_PENDING;
308 complete(&ioc->ctl_cmds.done);
309 return 1;
310 }
311
312 /**
313 * _ctl_check_event_type - determines when an event needs logging
314 * @ioc: per adapter object
315 * @event: firmware event
316 *
317 * The bitmask in ioc->event_type[] indicates which events should be
318 * be saved in the driver event_log. This bitmask is set by application.
319 *
320 * Returns 1 when event should be captured, or zero means no match.
321 */
322 static int
323 _ctl_check_event_type(struct MPT3SAS_ADAPTER *ioc, u16 event)
324 {
325 u16 i;
326 u32 desired_event;
327
328 if (event >= 128 || !event || !ioc->event_log)
329 return 0;
330
331 desired_event = (1 << (event % 32));
332 if (!desired_event)
333 desired_event = 1;
334 i = event / 32;
335 return desired_event & ioc->event_type[i];
336 }
337
338 /**
339 * mpt3sas_ctl_add_to_event_log - add event
340 * @ioc: per adapter object
341 * @mpi_reply: reply message frame
342 *
343 * Return nothing.
344 */
345 void
346 mpt3sas_ctl_add_to_event_log(struct MPT3SAS_ADAPTER *ioc,
347 Mpi2EventNotificationReply_t *mpi_reply)
348 {
349 struct MPT3_IOCTL_EVENTS *event_log;
350 u16 event;
351 int i;
352 u32 sz, event_data_sz;
353 u8 send_aen = 0;
354
355 if (!ioc->event_log)
356 return;
357
358 event = le16_to_cpu(mpi_reply->Event);
359
360 if (_ctl_check_event_type(ioc, event)) {
361
362 /* insert entry into circular event_log */
363 i = ioc->event_context % MPT3SAS_CTL_EVENT_LOG_SIZE;
364 event_log = ioc->event_log;
365 event_log[i].event = event;
366 event_log[i].context = ioc->event_context++;
367
368 event_data_sz = le16_to_cpu(mpi_reply->EventDataLength)*4;
369 sz = min_t(u32, event_data_sz, MPT3_EVENT_DATA_SIZE);
370 memset(event_log[i].data, 0, MPT3_EVENT_DATA_SIZE);
371 memcpy(event_log[i].data, mpi_reply->EventData, sz);
372 send_aen = 1;
373 }
374
375 /* This aen_event_read_flag flag is set until the
376 * application has read the event log.
377 * For MPI2_EVENT_LOG_ENTRY_ADDED, we always notify.
378 */
379 if (event == MPI2_EVENT_LOG_ENTRY_ADDED ||
380 (send_aen && !ioc->aen_event_read_flag)) {
381 ioc->aen_event_read_flag = 1;
382 wake_up_interruptible(&ctl_poll_wait);
383 if (async_queue)
384 kill_fasync(&async_queue, SIGIO, POLL_IN);
385 }
386 }
387
388 /**
389 * mpt3sas_ctl_event_callback - firmware event handler (called at ISR time)
390 * @ioc: per adapter object
391 * @msix_index: MSIX table index supplied by the OS
392 * @reply: reply message frame(lower 32bit addr)
393 * Context: interrupt.
394 *
395 * This function merely adds a new work task into ioc->firmware_event_thread.
396 * The tasks are worked from _firmware_event_work in user context.
397 *
398 * Return 1 meaning mf should be freed from _base_interrupt
399 * 0 means the mf is freed from this function.
400 */
401 u8
402 mpt3sas_ctl_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index,
403 u32 reply)
404 {
405 Mpi2EventNotificationReply_t *mpi_reply;
406
407 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
408 if (mpi_reply)
409 mpt3sas_ctl_add_to_event_log(ioc, mpi_reply);
410 return 1;
411 }
412
413 /**
414 * _ctl_verify_adapter - validates ioc_number passed from application
415 * @ioc: per adapter object
416 * @iocpp: The ioc pointer is returned in this.
417 * @mpi_version: will be MPI2_VERSION for mpt2ctl ioctl device &
418 * MPI25_VERSION | MPI26_VERSION for mpt3ctl ioctl device.
419 *
420 * Return (-1) means error, else ioc_number.
421 */
422 static int
423 _ctl_verify_adapter(int ioc_number, struct MPT3SAS_ADAPTER **iocpp,
424 int mpi_version)
425 {
426 struct MPT3SAS_ADAPTER *ioc;
427 int version = 0;
428 /* global ioc lock to protect controller on list operations */
429 spin_lock(&gioc_lock);
430 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
431 if (ioc->id != ioc_number)
432 continue;
433 /* Check whether this ioctl command is from right
434 * ioctl device or not, if not continue the search.
435 */
436 version = ioc->hba_mpi_version_belonged;
437 /* MPI25_VERSION and MPI26_VERSION uses same ioctl
438 * device.
439 */
440 if (mpi_version == (MPI25_VERSION | MPI26_VERSION)) {
441 if ((version == MPI25_VERSION) ||
442 (version == MPI26_VERSION))
443 goto out;
444 else
445 continue;
446 } else {
447 if (version != mpi_version)
448 continue;
449 }
450 out:
451 spin_unlock(&gioc_lock);
452 *iocpp = ioc;
453 return ioc_number;
454 }
455 spin_unlock(&gioc_lock);
456 *iocpp = NULL;
457 return -1;
458 }
459
460 /**
461 * mpt3sas_ctl_reset_handler - reset callback handler (for ctl)
462 * @ioc: per adapter object
463 * @reset_phase: phase
464 *
465 * The handler for doing any required cleanup or initialization.
466 *
467 * The reset phase can be MPT3_IOC_PRE_RESET, MPT3_IOC_AFTER_RESET,
468 * MPT3_IOC_DONE_RESET
469 */
470 void
471 mpt3sas_ctl_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase)
472 {
473 int i;
474 u8 issue_reset;
475
476 switch (reset_phase) {
477 case MPT3_IOC_PRE_RESET:
478 dtmprintk(ioc, pr_info(MPT3SAS_FMT
479 "%s: MPT3_IOC_PRE_RESET\n", ioc->name, __func__));
480 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
481 if (!(ioc->diag_buffer_status[i] &
482 MPT3_DIAG_BUFFER_IS_REGISTERED))
483 continue;
484 if ((ioc->diag_buffer_status[i] &
485 MPT3_DIAG_BUFFER_IS_RELEASED))
486 continue;
487 mpt3sas_send_diag_release(ioc, i, &issue_reset);
488 }
489 break;
490 case MPT3_IOC_AFTER_RESET:
491 dtmprintk(ioc, pr_info(MPT3SAS_FMT
492 "%s: MPT3_IOC_AFTER_RESET\n", ioc->name, __func__));
493 if (ioc->ctl_cmds.status & MPT3_CMD_PENDING) {
494 ioc->ctl_cmds.status |= MPT3_CMD_RESET;
495 mpt3sas_base_free_smid(ioc, ioc->ctl_cmds.smid);
496 complete(&ioc->ctl_cmds.done);
497 }
498 break;
499 case MPT3_IOC_DONE_RESET:
500 dtmprintk(ioc, pr_info(MPT3SAS_FMT
501 "%s: MPT3_IOC_DONE_RESET\n", ioc->name, __func__));
502
503 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
504 if (!(ioc->diag_buffer_status[i] &
505 MPT3_DIAG_BUFFER_IS_REGISTERED))
506 continue;
507 if ((ioc->diag_buffer_status[i] &
508 MPT3_DIAG_BUFFER_IS_RELEASED))
509 continue;
510 ioc->diag_buffer_status[i] |=
511 MPT3_DIAG_BUFFER_IS_DIAG_RESET;
512 }
513 break;
514 }
515 }
516
517 /**
518 * _ctl_fasync -
519 * @fd -
520 * @filep -
521 * @mode -
522 *
523 * Called when application request fasyn callback handler.
524 */
525 static int
526 _ctl_fasync(int fd, struct file *filep, int mode)
527 {
528 return fasync_helper(fd, filep, mode, &async_queue);
529 }
530
531 /**
532 * _ctl_poll -
533 * @file -
534 * @wait -
535 *
536 */
537 static __poll_t
538 _ctl_poll(struct file *filep, poll_table *wait)
539 {
540 struct MPT3SAS_ADAPTER *ioc;
541
542 poll_wait(filep, &ctl_poll_wait, wait);
543
544 /* global ioc lock to protect controller on list operations */
545 spin_lock(&gioc_lock);
546 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
547 if (ioc->aen_event_read_flag) {
548 spin_unlock(&gioc_lock);
549 return EPOLLIN | EPOLLRDNORM;
550 }
551 }
552 spin_unlock(&gioc_lock);
553 return 0;
554 }
555
556 /**
557 * _ctl_set_task_mid - assign an active smid to tm request
558 * @ioc: per adapter object
559 * @karg - (struct mpt3_ioctl_command)
560 * @tm_request - pointer to mf from user space
561 *
562 * Returns 0 when an smid if found, else fail.
563 * during failure, the reply frame is filled.
564 */
565 static int
566 _ctl_set_task_mid(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command *karg,
567 Mpi2SCSITaskManagementRequest_t *tm_request)
568 {
569 u8 found = 0;
570 u16 smid;
571 u16 handle;
572 struct scsi_cmnd *scmd;
573 struct MPT3SAS_DEVICE *priv_data;
574 Mpi2SCSITaskManagementReply_t *tm_reply;
575 u32 sz;
576 u32 lun;
577 char *desc = NULL;
578
579 if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
580 desc = "abort_task";
581 else if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK)
582 desc = "query_task";
583 else
584 return 0;
585
586 lun = scsilun_to_int((struct scsi_lun *)tm_request->LUN);
587
588 handle = le16_to_cpu(tm_request->DevHandle);
589 for (smid = ioc->scsiio_depth; smid && !found; smid--) {
590 struct scsiio_tracker *st;
591
592 scmd = mpt3sas_scsih_scsi_lookup_get(ioc, smid);
593 if (!scmd)
594 continue;
595 if (lun != scmd->device->lun)
596 continue;
597 priv_data = scmd->device->hostdata;
598 if (priv_data->sas_target == NULL)
599 continue;
600 if (priv_data->sas_target->handle != handle)
601 continue;
602 st = scsi_cmd_priv(scmd);
603 tm_request->TaskMID = cpu_to_le16(st->smid);
604 found = 1;
605 }
606
607 if (!found) {
608 dctlprintk(ioc, pr_info(MPT3SAS_FMT
609 "%s: handle(0x%04x), lun(%d), no active mid!!\n",
610 ioc->name,
611 desc, le16_to_cpu(tm_request->DevHandle), lun));
612 tm_reply = ioc->ctl_cmds.reply;
613 tm_reply->DevHandle = tm_request->DevHandle;
614 tm_reply->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
615 tm_reply->TaskType = tm_request->TaskType;
616 tm_reply->MsgLength = sizeof(Mpi2SCSITaskManagementReply_t)/4;
617 tm_reply->VP_ID = tm_request->VP_ID;
618 tm_reply->VF_ID = tm_request->VF_ID;
619 sz = min_t(u32, karg->max_reply_bytes, ioc->reply_sz);
620 if (copy_to_user(karg->reply_frame_buf_ptr, ioc->ctl_cmds.reply,
621 sz))
622 pr_err("failure at %s:%d/%s()!\n", __FILE__,
623 __LINE__, __func__);
624 return 1;
625 }
626
627 dctlprintk(ioc, pr_info(MPT3SAS_FMT
628 "%s: handle(0x%04x), lun(%d), task_mid(%d)\n", ioc->name,
629 desc, le16_to_cpu(tm_request->DevHandle), lun,
630 le16_to_cpu(tm_request->TaskMID)));
631 return 0;
632 }
633
634 /**
635 * _ctl_do_mpt_command - main handler for MPT3COMMAND opcode
636 * @ioc: per adapter object
637 * @karg - (struct mpt3_ioctl_command)
638 * @mf - pointer to mf in user space
639 */
640 static long
641 _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
642 void __user *mf)
643 {
644 MPI2RequestHeader_t *mpi_request = NULL, *request;
645 MPI2DefaultReply_t *mpi_reply;
646 Mpi26NVMeEncapsulatedRequest_t *nvme_encap_request = NULL;
647 u32 ioc_state;
648 u16 smid;
649 unsigned long timeout;
650 u8 issue_reset;
651 u32 sz, sz_arg;
652 void *psge;
653 void *data_out = NULL;
654 dma_addr_t data_out_dma = 0;
655 size_t data_out_sz = 0;
656 void *data_in = NULL;
657 dma_addr_t data_in_dma = 0;
658 size_t data_in_sz = 0;
659 long ret;
660 u16 wait_state_count;
661 u16 device_handle = MPT3SAS_INVALID_DEVICE_HANDLE;
662
663 issue_reset = 0;
664
665 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
666 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
667 ioc->name, __func__);
668 ret = -EAGAIN;
669 goto out;
670 }
671
672 wait_state_count = 0;
673 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
674 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
675 if (wait_state_count++ == 10) {
676 pr_err(MPT3SAS_FMT
677 "%s: failed due to ioc not operational\n",
678 ioc->name, __func__);
679 ret = -EFAULT;
680 goto out;
681 }
682 ssleep(1);
683 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
684 pr_info(MPT3SAS_FMT
685 "%s: waiting for operational state(count=%d)\n",
686 ioc->name,
687 __func__, wait_state_count);
688 }
689 if (wait_state_count)
690 pr_info(MPT3SAS_FMT "%s: ioc is operational\n",
691 ioc->name, __func__);
692
693 mpi_request = kzalloc(ioc->request_sz, GFP_KERNEL);
694 if (!mpi_request) {
695 pr_err(MPT3SAS_FMT
696 "%s: failed obtaining a memory for mpi_request\n",
697 ioc->name, __func__);
698 ret = -ENOMEM;
699 goto out;
700 }
701
702 /* Check for overflow and wraparound */
703 if (karg.data_sge_offset * 4 > ioc->request_sz ||
704 karg.data_sge_offset > (UINT_MAX / 4)) {
705 ret = -EINVAL;
706 goto out;
707 }
708
709 /* copy in request message frame from user */
710 if (copy_from_user(mpi_request, mf, karg.data_sge_offset*4)) {
711 pr_err("failure at %s:%d/%s()!\n", __FILE__, __LINE__,
712 __func__);
713 ret = -EFAULT;
714 goto out;
715 }
716
717 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
718 smid = mpt3sas_base_get_smid_hpr(ioc, ioc->ctl_cb_idx);
719 if (!smid) {
720 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
721 ioc->name, __func__);
722 ret = -EAGAIN;
723 goto out;
724 }
725 } else {
726 /* Use first reserved smid for passthrough ioctls */
727 smid = ioc->scsiio_depth - INTERNAL_SCSIIO_CMDS_COUNT + 1;
728 }
729
730 ret = 0;
731 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
732 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
733 request = mpt3sas_base_get_msg_frame(ioc, smid);
734 memcpy(request, mpi_request, karg.data_sge_offset*4);
735 ioc->ctl_cmds.smid = smid;
736 data_out_sz = karg.data_out_size;
737 data_in_sz = karg.data_in_size;
738
739 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
740 mpi_request->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
741 mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT ||
742 mpi_request->Function == MPI2_FUNCTION_SATA_PASSTHROUGH ||
743 mpi_request->Function == MPI2_FUNCTION_NVME_ENCAPSULATED) {
744
745 device_handle = le16_to_cpu(mpi_request->FunctionDependent1);
746 if (!device_handle || (device_handle >
747 ioc->facts.MaxDevHandle)) {
748 ret = -EINVAL;
749 mpt3sas_base_free_smid(ioc, smid);
750 goto out;
751 }
752 }
753
754 /* obtain dma-able memory for data transfer */
755 if (data_out_sz) /* WRITE */ {
756 data_out = pci_alloc_consistent(ioc->pdev, data_out_sz,
757 &data_out_dma);
758 if (!data_out) {
759 pr_err("failure at %s:%d/%s()!\n", __FILE__,
760 __LINE__, __func__);
761 ret = -ENOMEM;
762 mpt3sas_base_free_smid(ioc, smid);
763 goto out;
764 }
765 if (copy_from_user(data_out, karg.data_out_buf_ptr,
766 data_out_sz)) {
767 pr_err("failure at %s:%d/%s()!\n", __FILE__,
768 __LINE__, __func__);
769 ret = -EFAULT;
770 mpt3sas_base_free_smid(ioc, smid);
771 goto out;
772 }
773 }
774
775 if (data_in_sz) /* READ */ {
776 data_in = pci_alloc_consistent(ioc->pdev, data_in_sz,
777 &data_in_dma);
778 if (!data_in) {
779 pr_err("failure at %s:%d/%s()!\n", __FILE__,
780 __LINE__, __func__);
781 ret = -ENOMEM;
782 mpt3sas_base_free_smid(ioc, smid);
783 goto out;
784 }
785 }
786
787 psge = (void *)request + (karg.data_sge_offset*4);
788
789 /* send command to firmware */
790 _ctl_display_some_debug(ioc, smid, "ctl_request", NULL);
791
792 init_completion(&ioc->ctl_cmds.done);
793 switch (mpi_request->Function) {
794 case MPI2_FUNCTION_NVME_ENCAPSULATED:
795 {
796 nvme_encap_request = (Mpi26NVMeEncapsulatedRequest_t *)request;
797 /*
798 * Get the Physical Address of the sense buffer.
799 * Use Error Response buffer address field to hold the sense
800 * buffer address.
801 * Clear the internal sense buffer, which will potentially hold
802 * the Completion Queue Entry on return, or 0 if no Entry.
803 * Build the PRPs and set direction bits.
804 * Send the request.
805 */
806 nvme_encap_request->ErrorResponseBaseAddress = ioc->sense_dma &
807 0xFFFFFFFF00000000;
808 nvme_encap_request->ErrorResponseBaseAddress |=
809 (U64)mpt3sas_base_get_sense_buffer_dma(ioc, smid);
810 nvme_encap_request->ErrorResponseAllocationLength =
811 NVME_ERROR_RESPONSE_SIZE;
812 memset(ioc->ctl_cmds.sense, 0, NVME_ERROR_RESPONSE_SIZE);
813 ioc->build_nvme_prp(ioc, smid, nvme_encap_request,
814 data_out_dma, data_out_sz, data_in_dma, data_in_sz);
815 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
816 dtmprintk(ioc, pr_info(MPT3SAS_FMT "handle(0x%04x) :"
817 "ioctl failed due to device removal in progress\n",
818 ioc->name, device_handle));
819 mpt3sas_base_free_smid(ioc, smid);
820 ret = -EINVAL;
821 goto out;
822 }
823 ioc->put_smid_nvme_encap(ioc, smid);
824 break;
825 }
826 case MPI2_FUNCTION_SCSI_IO_REQUEST:
827 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
828 {
829 Mpi2SCSIIORequest_t *scsiio_request =
830 (Mpi2SCSIIORequest_t *)request;
831 scsiio_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
832 scsiio_request->SenseBufferLowAddress =
833 mpt3sas_base_get_sense_buffer_dma(ioc, smid);
834 memset(ioc->ctl_cmds.sense, 0, SCSI_SENSE_BUFFERSIZE);
835 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
836 dtmprintk(ioc, pr_info(MPT3SAS_FMT
837 "handle(0x%04x) :ioctl failed due to device removal in progress\n",
838 ioc->name, device_handle));
839 mpt3sas_base_free_smid(ioc, smid);
840 ret = -EINVAL;
841 goto out;
842 }
843 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
844 data_in_dma, data_in_sz);
845 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)
846 ioc->put_smid_scsi_io(ioc, smid, device_handle);
847 else
848 ioc->put_smid_default(ioc, smid);
849 break;
850 }
851 case MPI2_FUNCTION_SCSI_TASK_MGMT:
852 {
853 Mpi2SCSITaskManagementRequest_t *tm_request =
854 (Mpi2SCSITaskManagementRequest_t *)request;
855
856 dtmprintk(ioc, pr_info(MPT3SAS_FMT
857 "TASK_MGMT: handle(0x%04x), task_type(0x%02x)\n",
858 ioc->name,
859 le16_to_cpu(tm_request->DevHandle), tm_request->TaskType));
860 ioc->got_task_abort_from_ioctl = 1;
861 if (tm_request->TaskType ==
862 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK ||
863 tm_request->TaskType ==
864 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) {
865 if (_ctl_set_task_mid(ioc, &karg, tm_request)) {
866 mpt3sas_base_free_smid(ioc, smid);
867 ioc->got_task_abort_from_ioctl = 0;
868 goto out;
869 }
870 }
871 ioc->got_task_abort_from_ioctl = 0;
872
873 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
874 dtmprintk(ioc, pr_info(MPT3SAS_FMT
875 "handle(0x%04x) :ioctl failed due to device removal in progress\n",
876 ioc->name, device_handle));
877 mpt3sas_base_free_smid(ioc, smid);
878 ret = -EINVAL;
879 goto out;
880 }
881 mpt3sas_scsih_set_tm_flag(ioc, le16_to_cpu(
882 tm_request->DevHandle));
883 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
884 data_in_dma, data_in_sz);
885 ioc->put_smid_hi_priority(ioc, smid, 0);
886 break;
887 }
888 case MPI2_FUNCTION_SMP_PASSTHROUGH:
889 {
890 Mpi2SmpPassthroughRequest_t *smp_request =
891 (Mpi2SmpPassthroughRequest_t *)mpi_request;
892 u8 *data;
893
894 /* ioc determines which port to use */
895 smp_request->PhysicalPort = 0xFF;
896 if (smp_request->PassthroughFlags &
897 MPI2_SMP_PT_REQ_PT_FLAGS_IMMEDIATE)
898 data = (u8 *)&smp_request->SGL;
899 else {
900 if (unlikely(data_out == NULL)) {
901 pr_err("failure at %s:%d/%s()!\n",
902 __FILE__, __LINE__, __func__);
903 mpt3sas_base_free_smid(ioc, smid);
904 ret = -EINVAL;
905 goto out;
906 }
907 data = data_out;
908 }
909
910 if (data[1] == 0x91 && (data[10] == 1 || data[10] == 2)) {
911 ioc->ioc_link_reset_in_progress = 1;
912 ioc->ignore_loginfos = 1;
913 }
914 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
915 data_in_sz);
916 ioc->put_smid_default(ioc, smid);
917 break;
918 }
919 case MPI2_FUNCTION_SATA_PASSTHROUGH:
920 {
921 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
922 dtmprintk(ioc, pr_info(MPT3SAS_FMT
923 "handle(0x%04x) :ioctl failed due to device removal in progress\n",
924 ioc->name, device_handle));
925 mpt3sas_base_free_smid(ioc, smid);
926 ret = -EINVAL;
927 goto out;
928 }
929 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
930 data_in_sz);
931 ioc->put_smid_default(ioc, smid);
932 break;
933 }
934 case MPI2_FUNCTION_FW_DOWNLOAD:
935 case MPI2_FUNCTION_FW_UPLOAD:
936 {
937 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
938 data_in_sz);
939 ioc->put_smid_default(ioc, smid);
940 break;
941 }
942 case MPI2_FUNCTION_TOOLBOX:
943 {
944 Mpi2ToolboxCleanRequest_t *toolbox_request =
945 (Mpi2ToolboxCleanRequest_t *)mpi_request;
946
947 if (toolbox_request->Tool == MPI2_TOOLBOX_DIAGNOSTIC_CLI_TOOL) {
948 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
949 data_in_dma, data_in_sz);
950 } else {
951 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
952 data_in_dma, data_in_sz);
953 }
954 ioc->put_smid_default(ioc, smid);
955 break;
956 }
957 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
958 {
959 Mpi2SasIoUnitControlRequest_t *sasiounit_request =
960 (Mpi2SasIoUnitControlRequest_t *)mpi_request;
961
962 if (sasiounit_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET
963 || sasiounit_request->Operation ==
964 MPI2_SAS_OP_PHY_LINK_RESET) {
965 ioc->ioc_link_reset_in_progress = 1;
966 ioc->ignore_loginfos = 1;
967 }
968 /* drop to default case for posting the request */
969 }
970 default:
971 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
972 data_in_dma, data_in_sz);
973 ioc->put_smid_default(ioc, smid);
974 break;
975 }
976
977 if (karg.timeout < MPT3_IOCTL_DEFAULT_TIMEOUT)
978 timeout = MPT3_IOCTL_DEFAULT_TIMEOUT;
979 else
980 timeout = karg.timeout;
981 wait_for_completion_timeout(&ioc->ctl_cmds.done, timeout*HZ);
982 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
983 Mpi2SCSITaskManagementRequest_t *tm_request =
984 (Mpi2SCSITaskManagementRequest_t *)mpi_request;
985 mpt3sas_scsih_clear_tm_flag(ioc, le16_to_cpu(
986 tm_request->DevHandle));
987 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
988 } else if ((mpi_request->Function == MPI2_FUNCTION_SMP_PASSTHROUGH ||
989 mpi_request->Function == MPI2_FUNCTION_SAS_IO_UNIT_CONTROL) &&
990 ioc->ioc_link_reset_in_progress) {
991 ioc->ioc_link_reset_in_progress = 0;
992 ioc->ignore_loginfos = 0;
993 }
994 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
995 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
996 __func__);
997 _debug_dump_mf(mpi_request, karg.data_sge_offset);
998 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
999 issue_reset = 1;
1000 goto issue_host_reset;
1001 }
1002
1003 mpi_reply = ioc->ctl_cmds.reply;
1004
1005 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_TASK_MGMT &&
1006 (ioc->logging_level & MPT_DEBUG_TM)) {
1007 Mpi2SCSITaskManagementReply_t *tm_reply =
1008 (Mpi2SCSITaskManagementReply_t *)mpi_reply;
1009
1010 pr_info(MPT3SAS_FMT "TASK_MGMT: " \
1011 "IOCStatus(0x%04x), IOCLogInfo(0x%08x), "
1012 "TerminationCount(0x%08x)\n", ioc->name,
1013 le16_to_cpu(tm_reply->IOCStatus),
1014 le32_to_cpu(tm_reply->IOCLogInfo),
1015 le32_to_cpu(tm_reply->TerminationCount));
1016 }
1017
1018 /* copy out xdata to user */
1019 if (data_in_sz) {
1020 if (copy_to_user(karg.data_in_buf_ptr, data_in,
1021 data_in_sz)) {
1022 pr_err("failure at %s:%d/%s()!\n", __FILE__,
1023 __LINE__, __func__);
1024 ret = -ENODATA;
1025 goto out;
1026 }
1027 }
1028
1029 /* copy out reply message frame to user */
1030 if (karg.max_reply_bytes) {
1031 sz = min_t(u32, karg.max_reply_bytes, ioc->reply_sz);
1032 if (copy_to_user(karg.reply_frame_buf_ptr, ioc->ctl_cmds.reply,
1033 sz)) {
1034 pr_err("failure at %s:%d/%s()!\n", __FILE__,
1035 __LINE__, __func__);
1036 ret = -ENODATA;
1037 goto out;
1038 }
1039 }
1040
1041 /* copy out sense/NVMe Error Response to user */
1042 if (karg.max_sense_bytes && (mpi_request->Function ==
1043 MPI2_FUNCTION_SCSI_IO_REQUEST || mpi_request->Function ==
1044 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH || mpi_request->Function ==
1045 MPI2_FUNCTION_NVME_ENCAPSULATED)) {
1046 if (karg.sense_data_ptr == NULL) {
1047 pr_info(MPT3SAS_FMT "Response buffer provided"
1048 " by application is NULL; Response data will"
1049 " not be returned.\n", ioc->name);
1050 goto out;
1051 }
1052 sz_arg = (mpi_request->Function ==
1053 MPI2_FUNCTION_NVME_ENCAPSULATED) ? NVME_ERROR_RESPONSE_SIZE :
1054 SCSI_SENSE_BUFFERSIZE;
1055 sz = min_t(u32, karg.max_sense_bytes, sz_arg);
1056 if (copy_to_user(karg.sense_data_ptr, ioc->ctl_cmds.sense,
1057 sz)) {
1058 pr_err("failure at %s:%d/%s()!\n", __FILE__,
1059 __LINE__, __func__);
1060 ret = -ENODATA;
1061 goto out;
1062 }
1063 }
1064
1065 issue_host_reset:
1066 if (issue_reset) {
1067 ret = -ENODATA;
1068 if ((mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
1069 mpi_request->Function ==
1070 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
1071 mpi_request->Function == MPI2_FUNCTION_SATA_PASSTHROUGH)) {
1072 pr_info(MPT3SAS_FMT "issue target reset: handle = (0x%04x)\n",
1073 ioc->name,
1074 le16_to_cpu(mpi_request->FunctionDependent1));
1075 mpt3sas_halt_firmware(ioc);
1076 mpt3sas_scsih_issue_locked_tm(ioc,
1077 le16_to_cpu(mpi_request->FunctionDependent1), 0,
1078 MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 0, 30);
1079 } else
1080 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1081 }
1082
1083 out:
1084
1085 /* free memory associated with sg buffers */
1086 if (data_in)
1087 pci_free_consistent(ioc->pdev, data_in_sz, data_in,
1088 data_in_dma);
1089
1090 if (data_out)
1091 pci_free_consistent(ioc->pdev, data_out_sz, data_out,
1092 data_out_dma);
1093
1094 kfree(mpi_request);
1095 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1096 return ret;
1097 }
1098
1099 /**
1100 * _ctl_getiocinfo - main handler for MPT3IOCINFO opcode
1101 * @ioc: per adapter object
1102 * @arg - user space buffer containing ioctl content
1103 */
1104 static long
1105 _ctl_getiocinfo(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1106 {
1107 struct mpt3_ioctl_iocinfo karg;
1108
1109 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1110 __func__));
1111
1112 memset(&karg, 0 , sizeof(karg));
1113 if (ioc->pfacts)
1114 karg.port_number = ioc->pfacts[0].PortNumber;
1115 karg.hw_rev = ioc->pdev->revision;
1116 karg.pci_id = ioc->pdev->device;
1117 karg.subsystem_device = ioc->pdev->subsystem_device;
1118 karg.subsystem_vendor = ioc->pdev->subsystem_vendor;
1119 karg.pci_information.u.bits.bus = ioc->pdev->bus->number;
1120 karg.pci_information.u.bits.device = PCI_SLOT(ioc->pdev->devfn);
1121 karg.pci_information.u.bits.function = PCI_FUNC(ioc->pdev->devfn);
1122 karg.pci_information.segment_id = pci_domain_nr(ioc->pdev->bus);
1123 karg.firmware_version = ioc->facts.FWVersion.Word;
1124 strcpy(karg.driver_version, ioc->driver_name);
1125 strcat(karg.driver_version, "-");
1126 switch (ioc->hba_mpi_version_belonged) {
1127 case MPI2_VERSION:
1128 if (ioc->is_warpdrive)
1129 karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2_SSS6200;
1130 else
1131 karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2;
1132 strcat(karg.driver_version, MPT2SAS_DRIVER_VERSION);
1133 break;
1134 case MPI25_VERSION:
1135 case MPI26_VERSION:
1136 if (ioc->is_gen35_ioc)
1137 karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS35;
1138 else
1139 karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS3;
1140 strcat(karg.driver_version, MPT3SAS_DRIVER_VERSION);
1141 break;
1142 }
1143 karg.bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
1144
1145 if (copy_to_user(arg, &karg, sizeof(karg))) {
1146 pr_err("failure at %s:%d/%s()!\n",
1147 __FILE__, __LINE__, __func__);
1148 return -EFAULT;
1149 }
1150 return 0;
1151 }
1152
1153 /**
1154 * _ctl_eventquery - main handler for MPT3EVENTQUERY opcode
1155 * @ioc: per adapter object
1156 * @arg - user space buffer containing ioctl content
1157 */
1158 static long
1159 _ctl_eventquery(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1160 {
1161 struct mpt3_ioctl_eventquery karg;
1162
1163 if (copy_from_user(&karg, arg, sizeof(karg))) {
1164 pr_err("failure at %s:%d/%s()!\n",
1165 __FILE__, __LINE__, __func__);
1166 return -EFAULT;
1167 }
1168
1169 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1170 __func__));
1171
1172 karg.event_entries = MPT3SAS_CTL_EVENT_LOG_SIZE;
1173 memcpy(karg.event_types, ioc->event_type,
1174 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1175
1176 if (copy_to_user(arg, &karg, sizeof(karg))) {
1177 pr_err("failure at %s:%d/%s()!\n",
1178 __FILE__, __LINE__, __func__);
1179 return -EFAULT;
1180 }
1181 return 0;
1182 }
1183
1184 /**
1185 * _ctl_eventenable - main handler for MPT3EVENTENABLE opcode
1186 * @ioc: per adapter object
1187 * @arg - user space buffer containing ioctl content
1188 */
1189 static long
1190 _ctl_eventenable(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1191 {
1192 struct mpt3_ioctl_eventenable karg;
1193
1194 if (copy_from_user(&karg, arg, sizeof(karg))) {
1195 pr_err("failure at %s:%d/%s()!\n",
1196 __FILE__, __LINE__, __func__);
1197 return -EFAULT;
1198 }
1199
1200 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1201 __func__));
1202
1203 memcpy(ioc->event_type, karg.event_types,
1204 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1205 mpt3sas_base_validate_event_type(ioc, ioc->event_type);
1206
1207 if (ioc->event_log)
1208 return 0;
1209 /* initialize event_log */
1210 ioc->event_context = 0;
1211 ioc->aen_event_read_flag = 0;
1212 ioc->event_log = kcalloc(MPT3SAS_CTL_EVENT_LOG_SIZE,
1213 sizeof(struct MPT3_IOCTL_EVENTS), GFP_KERNEL);
1214 if (!ioc->event_log) {
1215 pr_err("failure at %s:%d/%s()!\n",
1216 __FILE__, __LINE__, __func__);
1217 return -ENOMEM;
1218 }
1219 return 0;
1220 }
1221
1222 /**
1223 * _ctl_eventreport - main handler for MPT3EVENTREPORT opcode
1224 * @ioc: per adapter object
1225 * @arg - user space buffer containing ioctl content
1226 */
1227 static long
1228 _ctl_eventreport(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1229 {
1230 struct mpt3_ioctl_eventreport karg;
1231 u32 number_bytes, max_events, max;
1232 struct mpt3_ioctl_eventreport __user *uarg = arg;
1233
1234 if (copy_from_user(&karg, arg, sizeof(karg))) {
1235 pr_err("failure at %s:%d/%s()!\n",
1236 __FILE__, __LINE__, __func__);
1237 return -EFAULT;
1238 }
1239
1240 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1241 __func__));
1242
1243 number_bytes = karg.hdr.max_data_size -
1244 sizeof(struct mpt3_ioctl_header);
1245 max_events = number_bytes/sizeof(struct MPT3_IOCTL_EVENTS);
1246 max = min_t(u32, MPT3SAS_CTL_EVENT_LOG_SIZE, max_events);
1247
1248 /* If fewer than 1 event is requested, there must have
1249 * been some type of error.
1250 */
1251 if (!max || !ioc->event_log)
1252 return -ENODATA;
1253
1254 number_bytes = max * sizeof(struct MPT3_IOCTL_EVENTS);
1255 if (copy_to_user(uarg->event_data, ioc->event_log, number_bytes)) {
1256 pr_err("failure at %s:%d/%s()!\n",
1257 __FILE__, __LINE__, __func__);
1258 return -EFAULT;
1259 }
1260
1261 /* reset flag so SIGIO can restart */
1262 ioc->aen_event_read_flag = 0;
1263 return 0;
1264 }
1265
1266 /**
1267 * _ctl_do_reset - main handler for MPT3HARDRESET opcode
1268 * @ioc: per adapter object
1269 * @arg - user space buffer containing ioctl content
1270 */
1271 static long
1272 _ctl_do_reset(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1273 {
1274 struct mpt3_ioctl_diag_reset karg;
1275 int retval;
1276
1277 if (copy_from_user(&karg, arg, sizeof(karg))) {
1278 pr_err("failure at %s:%d/%s()!\n",
1279 __FILE__, __LINE__, __func__);
1280 return -EFAULT;
1281 }
1282
1283 if (ioc->shost_recovery || ioc->pci_error_recovery ||
1284 ioc->is_driver_loading)
1285 return -EAGAIN;
1286
1287 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1288 __func__));
1289
1290 retval = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1291 pr_info(MPT3SAS_FMT "host reset: %s\n",
1292 ioc->name, ((!retval) ? "SUCCESS" : "FAILED"));
1293 return 0;
1294 }
1295
1296 /**
1297 * _ctl_btdh_search_sas_device - searching for sas device
1298 * @ioc: per adapter object
1299 * @btdh: btdh ioctl payload
1300 */
1301 static int
1302 _ctl_btdh_search_sas_device(struct MPT3SAS_ADAPTER *ioc,
1303 struct mpt3_ioctl_btdh_mapping *btdh)
1304 {
1305 struct _sas_device *sas_device;
1306 unsigned long flags;
1307 int rc = 0;
1308
1309 if (list_empty(&ioc->sas_device_list))
1310 return rc;
1311
1312 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1313 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
1314 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1315 btdh->handle == sas_device->handle) {
1316 btdh->bus = sas_device->channel;
1317 btdh->id = sas_device->id;
1318 rc = 1;
1319 goto out;
1320 } else if (btdh->bus == sas_device->channel && btdh->id ==
1321 sas_device->id && btdh->handle == 0xFFFF) {
1322 btdh->handle = sas_device->handle;
1323 rc = 1;
1324 goto out;
1325 }
1326 }
1327 out:
1328 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1329 return rc;
1330 }
1331
1332 /**
1333 * _ctl_btdh_search_pcie_device - searching for pcie device
1334 * @ioc: per adapter object
1335 * @btdh: btdh ioctl payload
1336 */
1337 static int
1338 _ctl_btdh_search_pcie_device(struct MPT3SAS_ADAPTER *ioc,
1339 struct mpt3_ioctl_btdh_mapping *btdh)
1340 {
1341 struct _pcie_device *pcie_device;
1342 unsigned long flags;
1343 int rc = 0;
1344
1345 if (list_empty(&ioc->pcie_device_list))
1346 return rc;
1347
1348 spin_lock_irqsave(&ioc->pcie_device_lock, flags);
1349 list_for_each_entry(pcie_device, &ioc->pcie_device_list, list) {
1350 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1351 btdh->handle == pcie_device->handle) {
1352 btdh->bus = pcie_device->channel;
1353 btdh->id = pcie_device->id;
1354 rc = 1;
1355 goto out;
1356 } else if (btdh->bus == pcie_device->channel && btdh->id ==
1357 pcie_device->id && btdh->handle == 0xFFFF) {
1358 btdh->handle = pcie_device->handle;
1359 rc = 1;
1360 goto out;
1361 }
1362 }
1363 out:
1364 spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
1365 return rc;
1366 }
1367
1368 /**
1369 * _ctl_btdh_search_raid_device - searching for raid device
1370 * @ioc: per adapter object
1371 * @btdh: btdh ioctl payload
1372 */
1373 static int
1374 _ctl_btdh_search_raid_device(struct MPT3SAS_ADAPTER *ioc,
1375 struct mpt3_ioctl_btdh_mapping *btdh)
1376 {
1377 struct _raid_device *raid_device;
1378 unsigned long flags;
1379 int rc = 0;
1380
1381 if (list_empty(&ioc->raid_device_list))
1382 return rc;
1383
1384 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1385 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
1386 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1387 btdh->handle == raid_device->handle) {
1388 btdh->bus = raid_device->channel;
1389 btdh->id = raid_device->id;
1390 rc = 1;
1391 goto out;
1392 } else if (btdh->bus == raid_device->channel && btdh->id ==
1393 raid_device->id && btdh->handle == 0xFFFF) {
1394 btdh->handle = raid_device->handle;
1395 rc = 1;
1396 goto out;
1397 }
1398 }
1399 out:
1400 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1401 return rc;
1402 }
1403
1404 /**
1405 * _ctl_btdh_mapping - main handler for MPT3BTDHMAPPING opcode
1406 * @ioc: per adapter object
1407 * @arg - user space buffer containing ioctl content
1408 */
1409 static long
1410 _ctl_btdh_mapping(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1411 {
1412 struct mpt3_ioctl_btdh_mapping karg;
1413 int rc;
1414
1415 if (copy_from_user(&karg, arg, sizeof(karg))) {
1416 pr_err("failure at %s:%d/%s()!\n",
1417 __FILE__, __LINE__, __func__);
1418 return -EFAULT;
1419 }
1420
1421 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1422 __func__));
1423
1424 rc = _ctl_btdh_search_sas_device(ioc, &karg);
1425 if (!rc)
1426 rc = _ctl_btdh_search_pcie_device(ioc, &karg);
1427 if (!rc)
1428 _ctl_btdh_search_raid_device(ioc, &karg);
1429
1430 if (copy_to_user(arg, &karg, sizeof(karg))) {
1431 pr_err("failure at %s:%d/%s()!\n",
1432 __FILE__, __LINE__, __func__);
1433 return -EFAULT;
1434 }
1435 return 0;
1436 }
1437
1438 /**
1439 * _ctl_diag_capability - return diag buffer capability
1440 * @ioc: per adapter object
1441 * @buffer_type: specifies either TRACE, SNAPSHOT, or EXTENDED
1442 *
1443 * returns 1 when diag buffer support is enabled in firmware
1444 */
1445 static u8
1446 _ctl_diag_capability(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type)
1447 {
1448 u8 rc = 0;
1449
1450 switch (buffer_type) {
1451 case MPI2_DIAG_BUF_TYPE_TRACE:
1452 if (ioc->facts.IOCCapabilities &
1453 MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER)
1454 rc = 1;
1455 break;
1456 case MPI2_DIAG_BUF_TYPE_SNAPSHOT:
1457 if (ioc->facts.IOCCapabilities &
1458 MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER)
1459 rc = 1;
1460 break;
1461 case MPI2_DIAG_BUF_TYPE_EXTENDED:
1462 if (ioc->facts.IOCCapabilities &
1463 MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER)
1464 rc = 1;
1465 }
1466
1467 return rc;
1468 }
1469
1470
1471 /**
1472 * _ctl_diag_register_2 - wrapper for registering diag buffer support
1473 * @ioc: per adapter object
1474 * @diag_register: the diag_register struct passed in from user space
1475 *
1476 */
1477 static long
1478 _ctl_diag_register_2(struct MPT3SAS_ADAPTER *ioc,
1479 struct mpt3_diag_register *diag_register)
1480 {
1481 int rc, i;
1482 void *request_data = NULL;
1483 dma_addr_t request_data_dma;
1484 u32 request_data_sz = 0;
1485 Mpi2DiagBufferPostRequest_t *mpi_request;
1486 Mpi2DiagBufferPostReply_t *mpi_reply;
1487 u8 buffer_type;
1488 u16 smid;
1489 u16 ioc_status;
1490 u32 ioc_state;
1491 u8 issue_reset = 0;
1492
1493 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1494 __func__));
1495
1496 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1497 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1498 pr_err(MPT3SAS_FMT
1499 "%s: failed due to ioc not operational\n",
1500 ioc->name, __func__);
1501 rc = -EAGAIN;
1502 goto out;
1503 }
1504
1505 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
1506 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
1507 ioc->name, __func__);
1508 rc = -EAGAIN;
1509 goto out;
1510 }
1511
1512 buffer_type = diag_register->buffer_type;
1513 if (!_ctl_diag_capability(ioc, buffer_type)) {
1514 pr_err(MPT3SAS_FMT
1515 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1516 ioc->name, __func__, buffer_type);
1517 return -EPERM;
1518 }
1519
1520 if (ioc->diag_buffer_status[buffer_type] &
1521 MPT3_DIAG_BUFFER_IS_REGISTERED) {
1522 pr_err(MPT3SAS_FMT
1523 "%s: already has a registered buffer for buffer_type(0x%02x)\n",
1524 ioc->name, __func__,
1525 buffer_type);
1526 return -EINVAL;
1527 }
1528
1529 if (diag_register->requested_buffer_size % 4) {
1530 pr_err(MPT3SAS_FMT
1531 "%s: the requested_buffer_size is not 4 byte aligned\n",
1532 ioc->name, __func__);
1533 return -EINVAL;
1534 }
1535
1536 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1537 if (!smid) {
1538 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
1539 ioc->name, __func__);
1540 rc = -EAGAIN;
1541 goto out;
1542 }
1543
1544 rc = 0;
1545 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
1546 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1547 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1548 ioc->ctl_cmds.smid = smid;
1549
1550 request_data = ioc->diag_buffer[buffer_type];
1551 request_data_sz = diag_register->requested_buffer_size;
1552 ioc->unique_id[buffer_type] = diag_register->unique_id;
1553 ioc->diag_buffer_status[buffer_type] = 0;
1554 memcpy(ioc->product_specific[buffer_type],
1555 diag_register->product_specific, MPT3_PRODUCT_SPECIFIC_DWORDS);
1556 ioc->diagnostic_flags[buffer_type] = diag_register->diagnostic_flags;
1557
1558 if (request_data) {
1559 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1560 if (request_data_sz != ioc->diag_buffer_sz[buffer_type]) {
1561 pci_free_consistent(ioc->pdev,
1562 ioc->diag_buffer_sz[buffer_type],
1563 request_data, request_data_dma);
1564 request_data = NULL;
1565 }
1566 }
1567
1568 if (request_data == NULL) {
1569 ioc->diag_buffer_sz[buffer_type] = 0;
1570 ioc->diag_buffer_dma[buffer_type] = 0;
1571 request_data = pci_alloc_consistent(
1572 ioc->pdev, request_data_sz, &request_data_dma);
1573 if (request_data == NULL) {
1574 pr_err(MPT3SAS_FMT "%s: failed allocating memory" \
1575 " for diag buffers, requested size(%d)\n",
1576 ioc->name, __func__, request_data_sz);
1577 mpt3sas_base_free_smid(ioc, smid);
1578 return -ENOMEM;
1579 }
1580 ioc->diag_buffer[buffer_type] = request_data;
1581 ioc->diag_buffer_sz[buffer_type] = request_data_sz;
1582 ioc->diag_buffer_dma[buffer_type] = request_data_dma;
1583 }
1584
1585 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
1586 mpi_request->BufferType = diag_register->buffer_type;
1587 mpi_request->Flags = cpu_to_le32(diag_register->diagnostic_flags);
1588 mpi_request->BufferAddress = cpu_to_le64(request_data_dma);
1589 mpi_request->BufferLength = cpu_to_le32(request_data_sz);
1590 mpi_request->VF_ID = 0; /* TODO */
1591 mpi_request->VP_ID = 0;
1592
1593 dctlprintk(ioc, pr_info(MPT3SAS_FMT
1594 "%s: diag_buffer(0x%p), dma(0x%llx), sz(%d)\n",
1595 ioc->name, __func__, request_data,
1596 (unsigned long long)request_data_dma,
1597 le32_to_cpu(mpi_request->BufferLength)));
1598
1599 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
1600 mpi_request->ProductSpecific[i] =
1601 cpu_to_le32(ioc->product_specific[buffer_type][i]);
1602
1603 init_completion(&ioc->ctl_cmds.done);
1604 ioc->put_smid_default(ioc, smid);
1605 wait_for_completion_timeout(&ioc->ctl_cmds.done,
1606 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
1607
1608 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1609 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
1610 __func__);
1611 _debug_dump_mf(mpi_request,
1612 sizeof(Mpi2DiagBufferPostRequest_t)/4);
1613 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
1614 issue_reset = 1;
1615 goto issue_host_reset;
1616 }
1617
1618 /* process the completed Reply Message Frame */
1619 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
1620 pr_err(MPT3SAS_FMT "%s: no reply message\n",
1621 ioc->name, __func__);
1622 rc = -EFAULT;
1623 goto out;
1624 }
1625
1626 mpi_reply = ioc->ctl_cmds.reply;
1627 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1628
1629 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1630 ioc->diag_buffer_status[buffer_type] |=
1631 MPT3_DIAG_BUFFER_IS_REGISTERED;
1632 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
1633 ioc->name, __func__));
1634 } else {
1635 pr_info(MPT3SAS_FMT
1636 "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
1637 ioc->name, __func__,
1638 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
1639 rc = -EFAULT;
1640 }
1641
1642 issue_host_reset:
1643 if (issue_reset)
1644 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1645
1646 out:
1647
1648 if (rc && request_data)
1649 pci_free_consistent(ioc->pdev, request_data_sz,
1650 request_data, request_data_dma);
1651
1652 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1653 return rc;
1654 }
1655
1656 /**
1657 * mpt3sas_enable_diag_buffer - enabling diag_buffers support driver load time
1658 * @ioc: per adapter object
1659 * @bits_to_register: bitwise field where trace is bit 0, and snapshot is bit 1
1660 *
1661 * This is called when command line option diag_buffer_enable is enabled
1662 * at driver load time.
1663 */
1664 void
1665 mpt3sas_enable_diag_buffer(struct MPT3SAS_ADAPTER *ioc, u8 bits_to_register)
1666 {
1667 struct mpt3_diag_register diag_register;
1668
1669 memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
1670
1671 if (bits_to_register & 1) {
1672 pr_info(MPT3SAS_FMT "registering trace buffer support\n",
1673 ioc->name);
1674 ioc->diag_trigger_master.MasterData =
1675 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
1676 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
1677 /* register for 2MB buffers */
1678 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1679 diag_register.unique_id = 0x7075900;
1680 _ctl_diag_register_2(ioc, &diag_register);
1681 }
1682
1683 if (bits_to_register & 2) {
1684 pr_info(MPT3SAS_FMT "registering snapshot buffer support\n",
1685 ioc->name);
1686 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_SNAPSHOT;
1687 /* register for 2MB buffers */
1688 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1689 diag_register.unique_id = 0x7075901;
1690 _ctl_diag_register_2(ioc, &diag_register);
1691 }
1692
1693 if (bits_to_register & 4) {
1694 pr_info(MPT3SAS_FMT "registering extended buffer support\n",
1695 ioc->name);
1696 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_EXTENDED;
1697 /* register for 2MB buffers */
1698 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1699 diag_register.unique_id = 0x7075901;
1700 _ctl_diag_register_2(ioc, &diag_register);
1701 }
1702 }
1703
1704 /**
1705 * _ctl_diag_register - application register with driver
1706 * @ioc: per adapter object
1707 * @arg - user space buffer containing ioctl content
1708 *
1709 * This will allow the driver to setup any required buffers that will be
1710 * needed by firmware to communicate with the driver.
1711 */
1712 static long
1713 _ctl_diag_register(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1714 {
1715 struct mpt3_diag_register karg;
1716 long rc;
1717
1718 if (copy_from_user(&karg, arg, sizeof(karg))) {
1719 pr_err("failure at %s:%d/%s()!\n",
1720 __FILE__, __LINE__, __func__);
1721 return -EFAULT;
1722 }
1723
1724 rc = _ctl_diag_register_2(ioc, &karg);
1725 return rc;
1726 }
1727
1728 /**
1729 * _ctl_diag_unregister - application unregister with driver
1730 * @ioc: per adapter object
1731 * @arg - user space buffer containing ioctl content
1732 *
1733 * This will allow the driver to cleanup any memory allocated for diag
1734 * messages and to free up any resources.
1735 */
1736 static long
1737 _ctl_diag_unregister(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1738 {
1739 struct mpt3_diag_unregister karg;
1740 void *request_data;
1741 dma_addr_t request_data_dma;
1742 u32 request_data_sz;
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 buffer_type = karg.unique_id & 0x000000ff;
1755 if (!_ctl_diag_capability(ioc, buffer_type)) {
1756 pr_err(MPT3SAS_FMT
1757 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1758 ioc->name, __func__, buffer_type);
1759 return -EPERM;
1760 }
1761
1762 if ((ioc->diag_buffer_status[buffer_type] &
1763 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1764 pr_err(MPT3SAS_FMT
1765 "%s: buffer_type(0x%02x) is not registered\n",
1766 ioc->name, __func__, buffer_type);
1767 return -EINVAL;
1768 }
1769 if ((ioc->diag_buffer_status[buffer_type] &
1770 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
1771 pr_err(MPT3SAS_FMT
1772 "%s: buffer_type(0x%02x) has not been released\n",
1773 ioc->name, __func__, buffer_type);
1774 return -EINVAL;
1775 }
1776
1777 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1778 pr_err(MPT3SAS_FMT
1779 "%s: unique_id(0x%08x) is not registered\n",
1780 ioc->name, __func__, karg.unique_id);
1781 return -EINVAL;
1782 }
1783
1784 request_data = ioc->diag_buffer[buffer_type];
1785 if (!request_data) {
1786 pr_err(MPT3SAS_FMT
1787 "%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
1788 ioc->name, __func__, buffer_type);
1789 return -ENOMEM;
1790 }
1791
1792 request_data_sz = ioc->diag_buffer_sz[buffer_type];
1793 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1794 pci_free_consistent(ioc->pdev, request_data_sz,
1795 request_data, request_data_dma);
1796 ioc->diag_buffer[buffer_type] = NULL;
1797 ioc->diag_buffer_status[buffer_type] = 0;
1798 return 0;
1799 }
1800
1801 /**
1802 * _ctl_diag_query - query relevant info associated with diag buffers
1803 * @ioc: per adapter object
1804 * @arg - user space buffer containing ioctl content
1805 *
1806 * The application will send only buffer_type and unique_id. Driver will
1807 * inspect unique_id first, if valid, fill in all the info. If unique_id is
1808 * 0x00, the driver will return info specified by Buffer Type.
1809 */
1810 static long
1811 _ctl_diag_query(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1812 {
1813 struct mpt3_diag_query karg;
1814 void *request_data;
1815 int i;
1816 u8 buffer_type;
1817
1818 if (copy_from_user(&karg, arg, sizeof(karg))) {
1819 pr_err("failure at %s:%d/%s()!\n",
1820 __FILE__, __LINE__, __func__);
1821 return -EFAULT;
1822 }
1823
1824 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1825 __func__));
1826
1827 karg.application_flags = 0;
1828 buffer_type = karg.buffer_type;
1829
1830 if (!_ctl_diag_capability(ioc, buffer_type)) {
1831 pr_err(MPT3SAS_FMT
1832 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1833 ioc->name, __func__, buffer_type);
1834 return -EPERM;
1835 }
1836
1837 if ((ioc->diag_buffer_status[buffer_type] &
1838 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1839 pr_err(MPT3SAS_FMT
1840 "%s: buffer_type(0x%02x) is not registered\n",
1841 ioc->name, __func__, buffer_type);
1842 return -EINVAL;
1843 }
1844
1845 if (karg.unique_id & 0xffffff00) {
1846 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1847 pr_err(MPT3SAS_FMT
1848 "%s: unique_id(0x%08x) is not registered\n",
1849 ioc->name, __func__, karg.unique_id);
1850 return -EINVAL;
1851 }
1852 }
1853
1854 request_data = ioc->diag_buffer[buffer_type];
1855 if (!request_data) {
1856 pr_err(MPT3SAS_FMT
1857 "%s: doesn't have buffer for buffer_type(0x%02x)\n",
1858 ioc->name, __func__, buffer_type);
1859 return -ENOMEM;
1860 }
1861
1862 if (ioc->diag_buffer_status[buffer_type] & MPT3_DIAG_BUFFER_IS_RELEASED)
1863 karg.application_flags = (MPT3_APP_FLAGS_APP_OWNED |
1864 MPT3_APP_FLAGS_BUFFER_VALID);
1865 else
1866 karg.application_flags = (MPT3_APP_FLAGS_APP_OWNED |
1867 MPT3_APP_FLAGS_BUFFER_VALID |
1868 MPT3_APP_FLAGS_FW_BUFFER_ACCESS);
1869
1870 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
1871 karg.product_specific[i] =
1872 ioc->product_specific[buffer_type][i];
1873
1874 karg.total_buffer_size = ioc->diag_buffer_sz[buffer_type];
1875 karg.driver_added_buffer_size = 0;
1876 karg.unique_id = ioc->unique_id[buffer_type];
1877 karg.diagnostic_flags = ioc->diagnostic_flags[buffer_type];
1878
1879 if (copy_to_user(arg, &karg, sizeof(struct mpt3_diag_query))) {
1880 pr_err(MPT3SAS_FMT
1881 "%s: unable to write mpt3_diag_query data @ %p\n",
1882 ioc->name, __func__, arg);
1883 return -EFAULT;
1884 }
1885 return 0;
1886 }
1887
1888 /**
1889 * mpt3sas_send_diag_release - Diag Release Message
1890 * @ioc: per adapter object
1891 * @buffer_type - specifies either TRACE, SNAPSHOT, or EXTENDED
1892 * @issue_reset - specifies whether host reset is required.
1893 *
1894 */
1895 int
1896 mpt3sas_send_diag_release(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type,
1897 u8 *issue_reset)
1898 {
1899 Mpi2DiagReleaseRequest_t *mpi_request;
1900 Mpi2DiagReleaseReply_t *mpi_reply;
1901 u16 smid;
1902 u16 ioc_status;
1903 u32 ioc_state;
1904 int rc;
1905
1906 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1907 __func__));
1908
1909 rc = 0;
1910 *issue_reset = 0;
1911
1912 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1913 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1914 if (ioc->diag_buffer_status[buffer_type] &
1915 MPT3_DIAG_BUFFER_IS_REGISTERED)
1916 ioc->diag_buffer_status[buffer_type] |=
1917 MPT3_DIAG_BUFFER_IS_RELEASED;
1918 dctlprintk(ioc, pr_info(MPT3SAS_FMT
1919 "%s: skipping due to FAULT state\n", ioc->name,
1920 __func__));
1921 rc = -EAGAIN;
1922 goto out;
1923 }
1924
1925 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
1926 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
1927 ioc->name, __func__);
1928 rc = -EAGAIN;
1929 goto out;
1930 }
1931
1932 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1933 if (!smid) {
1934 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
1935 ioc->name, __func__);
1936 rc = -EAGAIN;
1937 goto out;
1938 }
1939
1940 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
1941 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1942 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1943 ioc->ctl_cmds.smid = smid;
1944
1945 mpi_request->Function = MPI2_FUNCTION_DIAG_RELEASE;
1946 mpi_request->BufferType = buffer_type;
1947 mpi_request->VF_ID = 0; /* TODO */
1948 mpi_request->VP_ID = 0;
1949
1950 init_completion(&ioc->ctl_cmds.done);
1951 ioc->put_smid_default(ioc, smid);
1952 wait_for_completion_timeout(&ioc->ctl_cmds.done,
1953 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
1954
1955 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1956 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
1957 __func__);
1958 _debug_dump_mf(mpi_request,
1959 sizeof(Mpi2DiagReleaseRequest_t)/4);
1960 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
1961 *issue_reset = 1;
1962 rc = -EFAULT;
1963 goto out;
1964 }
1965
1966 /* process the completed Reply Message Frame */
1967 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
1968 pr_err(MPT3SAS_FMT "%s: no reply message\n",
1969 ioc->name, __func__);
1970 rc = -EFAULT;
1971 goto out;
1972 }
1973
1974 mpi_reply = ioc->ctl_cmds.reply;
1975 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1976
1977 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1978 ioc->diag_buffer_status[buffer_type] |=
1979 MPT3_DIAG_BUFFER_IS_RELEASED;
1980 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
1981 ioc->name, __func__));
1982 } else {
1983 pr_info(MPT3SAS_FMT
1984 "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
1985 ioc->name, __func__,
1986 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
1987 rc = -EFAULT;
1988 }
1989
1990 out:
1991 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1992 return rc;
1993 }
1994
1995 /**
1996 * _ctl_diag_release - request to send Diag Release Message to firmware
1997 * @arg - user space buffer containing ioctl content
1998 *
1999 * This allows ownership of the specified buffer to returned to the driver,
2000 * allowing an application to read the buffer without fear that firmware is
2001 * overwriting information in the buffer.
2002 */
2003 static long
2004 _ctl_diag_release(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
2005 {
2006 struct mpt3_diag_release karg;
2007 void *request_data;
2008 int rc;
2009 u8 buffer_type;
2010 u8 issue_reset = 0;
2011
2012 if (copy_from_user(&karg, arg, sizeof(karg))) {
2013 pr_err("failure at %s:%d/%s()!\n",
2014 __FILE__, __LINE__, __func__);
2015 return -EFAULT;
2016 }
2017
2018 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
2019 __func__));
2020
2021 buffer_type = karg.unique_id & 0x000000ff;
2022 if (!_ctl_diag_capability(ioc, buffer_type)) {
2023 pr_err(MPT3SAS_FMT
2024 "%s: doesn't have capability for buffer_type(0x%02x)\n",
2025 ioc->name, __func__, buffer_type);
2026 return -EPERM;
2027 }
2028
2029 if ((ioc->diag_buffer_status[buffer_type] &
2030 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
2031 pr_err(MPT3SAS_FMT
2032 "%s: buffer_type(0x%02x) is not registered\n",
2033 ioc->name, __func__, buffer_type);
2034 return -EINVAL;
2035 }
2036
2037 if (karg.unique_id != ioc->unique_id[buffer_type]) {
2038 pr_err(MPT3SAS_FMT
2039 "%s: unique_id(0x%08x) is not registered\n",
2040 ioc->name, __func__, karg.unique_id);
2041 return -EINVAL;
2042 }
2043
2044 if (ioc->diag_buffer_status[buffer_type] &
2045 MPT3_DIAG_BUFFER_IS_RELEASED) {
2046 pr_err(MPT3SAS_FMT
2047 "%s: buffer_type(0x%02x) is already released\n",
2048 ioc->name, __func__,
2049 buffer_type);
2050 return 0;
2051 }
2052
2053 request_data = ioc->diag_buffer[buffer_type];
2054
2055 if (!request_data) {
2056 pr_err(MPT3SAS_FMT
2057 "%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
2058 ioc->name, __func__, buffer_type);
2059 return -ENOMEM;
2060 }
2061
2062 /* buffers were released by due to host reset */
2063 if ((ioc->diag_buffer_status[buffer_type] &
2064 MPT3_DIAG_BUFFER_IS_DIAG_RESET)) {
2065 ioc->diag_buffer_status[buffer_type] |=
2066 MPT3_DIAG_BUFFER_IS_RELEASED;
2067 ioc->diag_buffer_status[buffer_type] &=
2068 ~MPT3_DIAG_BUFFER_IS_DIAG_RESET;
2069 pr_err(MPT3SAS_FMT
2070 "%s: buffer_type(0x%02x) was released due to host reset\n",
2071 ioc->name, __func__, buffer_type);
2072 return 0;
2073 }
2074
2075 rc = mpt3sas_send_diag_release(ioc, buffer_type, &issue_reset);
2076
2077 if (issue_reset)
2078 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
2079
2080 return rc;
2081 }
2082
2083 /**
2084 * _ctl_diag_read_buffer - request for copy of the diag buffer
2085 * @ioc: per adapter object
2086 * @arg - user space buffer containing ioctl content
2087 */
2088 static long
2089 _ctl_diag_read_buffer(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
2090 {
2091 struct mpt3_diag_read_buffer karg;
2092 struct mpt3_diag_read_buffer __user *uarg = arg;
2093 void *request_data, *diag_data;
2094 Mpi2DiagBufferPostRequest_t *mpi_request;
2095 Mpi2DiagBufferPostReply_t *mpi_reply;
2096 int rc, i;
2097 u8 buffer_type;
2098 unsigned long request_size, copy_size;
2099 u16 smid;
2100 u16 ioc_status;
2101 u8 issue_reset = 0;
2102
2103 if (copy_from_user(&karg, arg, sizeof(karg))) {
2104 pr_err("failure at %s:%d/%s()!\n",
2105 __FILE__, __LINE__, __func__);
2106 return -EFAULT;
2107 }
2108
2109 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
2110 __func__));
2111
2112 buffer_type = karg.unique_id & 0x000000ff;
2113 if (!_ctl_diag_capability(ioc, buffer_type)) {
2114 pr_err(MPT3SAS_FMT
2115 "%s: doesn't have capability for buffer_type(0x%02x)\n",
2116 ioc->name, __func__, buffer_type);
2117 return -EPERM;
2118 }
2119
2120 if (karg.unique_id != ioc->unique_id[buffer_type]) {
2121 pr_err(MPT3SAS_FMT
2122 "%s: unique_id(0x%08x) is not registered\n",
2123 ioc->name, __func__, karg.unique_id);
2124 return -EINVAL;
2125 }
2126
2127 request_data = ioc->diag_buffer[buffer_type];
2128 if (!request_data) {
2129 pr_err(MPT3SAS_FMT
2130 "%s: doesn't have buffer for buffer_type(0x%02x)\n",
2131 ioc->name, __func__, buffer_type);
2132 return -ENOMEM;
2133 }
2134
2135 request_size = ioc->diag_buffer_sz[buffer_type];
2136
2137 if ((karg.starting_offset % 4) || (karg.bytes_to_read % 4)) {
2138 pr_err(MPT3SAS_FMT "%s: either the starting_offset " \
2139 "or bytes_to_read are not 4 byte aligned\n", ioc->name,
2140 __func__);
2141 return -EINVAL;
2142 }
2143
2144 if (karg.starting_offset > request_size)
2145 return -EINVAL;
2146
2147 diag_data = (void *)(request_data + karg.starting_offset);
2148 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2149 "%s: diag_buffer(%p), offset(%d), sz(%d)\n",
2150 ioc->name, __func__,
2151 diag_data, karg.starting_offset, karg.bytes_to_read));
2152
2153 /* Truncate data on requests that are too large */
2154 if ((diag_data + karg.bytes_to_read < diag_data) ||
2155 (diag_data + karg.bytes_to_read > request_data + request_size))
2156 copy_size = request_size - karg.starting_offset;
2157 else
2158 copy_size = karg.bytes_to_read;
2159
2160 if (copy_to_user((void __user *)uarg->diagnostic_data,
2161 diag_data, copy_size)) {
2162 pr_err(MPT3SAS_FMT
2163 "%s: Unable to write mpt_diag_read_buffer_t data @ %p\n",
2164 ioc->name, __func__, diag_data);
2165 return -EFAULT;
2166 }
2167
2168 if ((karg.flags & MPT3_FLAGS_REREGISTER) == 0)
2169 return 0;
2170
2171 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2172 "%s: Reregister buffer_type(0x%02x)\n",
2173 ioc->name, __func__, buffer_type));
2174 if ((ioc->diag_buffer_status[buffer_type] &
2175 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
2176 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2177 "%s: buffer_type(0x%02x) is still registered\n",
2178 ioc->name, __func__, buffer_type));
2179 return 0;
2180 }
2181 /* Get a free request frame and save the message context.
2182 */
2183
2184 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
2185 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
2186 ioc->name, __func__);
2187 rc = -EAGAIN;
2188 goto out;
2189 }
2190
2191 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
2192 if (!smid) {
2193 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
2194 ioc->name, __func__);
2195 rc = -EAGAIN;
2196 goto out;
2197 }
2198
2199 rc = 0;
2200 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
2201 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
2202 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
2203 ioc->ctl_cmds.smid = smid;
2204
2205 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
2206 mpi_request->BufferType = buffer_type;
2207 mpi_request->BufferLength =
2208 cpu_to_le32(ioc->diag_buffer_sz[buffer_type]);
2209 mpi_request->BufferAddress =
2210 cpu_to_le64(ioc->diag_buffer_dma[buffer_type]);
2211 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
2212 mpi_request->ProductSpecific[i] =
2213 cpu_to_le32(ioc->product_specific[buffer_type][i]);
2214 mpi_request->VF_ID = 0; /* TODO */
2215 mpi_request->VP_ID = 0;
2216
2217 init_completion(&ioc->ctl_cmds.done);
2218 ioc->put_smid_default(ioc, smid);
2219 wait_for_completion_timeout(&ioc->ctl_cmds.done,
2220 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
2221
2222 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
2223 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
2224 __func__);
2225 _debug_dump_mf(mpi_request,
2226 sizeof(Mpi2DiagBufferPostRequest_t)/4);
2227 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
2228 issue_reset = 1;
2229 goto issue_host_reset;
2230 }
2231
2232 /* process the completed Reply Message Frame */
2233 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
2234 pr_err(MPT3SAS_FMT "%s: no reply message\n",
2235 ioc->name, __func__);
2236 rc = -EFAULT;
2237 goto out;
2238 }
2239
2240 mpi_reply = ioc->ctl_cmds.reply;
2241 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
2242
2243 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
2244 ioc->diag_buffer_status[buffer_type] |=
2245 MPT3_DIAG_BUFFER_IS_REGISTERED;
2246 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
2247 ioc->name, __func__));
2248 } else {
2249 pr_info(MPT3SAS_FMT
2250 "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
2251 ioc->name, __func__,
2252 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
2253 rc = -EFAULT;
2254 }
2255
2256 issue_host_reset:
2257 if (issue_reset)
2258 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
2259
2260 out:
2261
2262 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
2263 return rc;
2264 }
2265
2266
2267
2268 #ifdef CONFIG_COMPAT
2269 /**
2270 * _ctl_compat_mpt_command - convert 32bit pointers to 64bit.
2271 * @ioc: per adapter object
2272 * @cmd - ioctl opcode
2273 * @arg - (struct mpt3_ioctl_command32)
2274 *
2275 * MPT3COMMAND32 - Handle 32bit applications running on 64bit os.
2276 */
2277 static long
2278 _ctl_compat_mpt_command(struct MPT3SAS_ADAPTER *ioc, unsigned cmd,
2279 void __user *arg)
2280 {
2281 struct mpt3_ioctl_command32 karg32;
2282 struct mpt3_ioctl_command32 __user *uarg;
2283 struct mpt3_ioctl_command karg;
2284
2285 if (_IOC_SIZE(cmd) != sizeof(struct mpt3_ioctl_command32))
2286 return -EINVAL;
2287
2288 uarg = (struct mpt3_ioctl_command32 __user *) arg;
2289
2290 if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32))) {
2291 pr_err("failure at %s:%d/%s()!\n",
2292 __FILE__, __LINE__, __func__);
2293 return -EFAULT;
2294 }
2295
2296 memset(&karg, 0, sizeof(struct mpt3_ioctl_command));
2297 karg.hdr.ioc_number = karg32.hdr.ioc_number;
2298 karg.hdr.port_number = karg32.hdr.port_number;
2299 karg.hdr.max_data_size = karg32.hdr.max_data_size;
2300 karg.timeout = karg32.timeout;
2301 karg.max_reply_bytes = karg32.max_reply_bytes;
2302 karg.data_in_size = karg32.data_in_size;
2303 karg.data_out_size = karg32.data_out_size;
2304 karg.max_sense_bytes = karg32.max_sense_bytes;
2305 karg.data_sge_offset = karg32.data_sge_offset;
2306 karg.reply_frame_buf_ptr = compat_ptr(karg32.reply_frame_buf_ptr);
2307 karg.data_in_buf_ptr = compat_ptr(karg32.data_in_buf_ptr);
2308 karg.data_out_buf_ptr = compat_ptr(karg32.data_out_buf_ptr);
2309 karg.sense_data_ptr = compat_ptr(karg32.sense_data_ptr);
2310 return _ctl_do_mpt_command(ioc, karg, &uarg->mf);
2311 }
2312 #endif
2313
2314 /**
2315 * _ctl_ioctl_main - main ioctl entry point
2316 * @file - (struct file)
2317 * @cmd - ioctl opcode
2318 * @arg - user space data buffer
2319 * @compat - handles 32 bit applications in 64bit os
2320 * @mpi_version: will be MPI2_VERSION for mpt2ctl ioctl device &
2321 * MPI25_VERSION | MPI26_VERSION for mpt3ctl ioctl device.
2322 */
2323 static long
2324 _ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg,
2325 u8 compat, u16 mpi_version)
2326 {
2327 struct MPT3SAS_ADAPTER *ioc;
2328 struct mpt3_ioctl_header ioctl_header;
2329 enum block_state state;
2330 long ret = -EINVAL;
2331
2332 /* get IOCTL header */
2333 if (copy_from_user(&ioctl_header, (char __user *)arg,
2334 sizeof(struct mpt3_ioctl_header))) {
2335 pr_err("failure at %s:%d/%s()!\n",
2336 __FILE__, __LINE__, __func__);
2337 return -EFAULT;
2338 }
2339
2340 if (_ctl_verify_adapter(ioctl_header.ioc_number,
2341 &ioc, mpi_version) == -1 || !ioc)
2342 return -ENODEV;
2343
2344 /* pci_access_mutex lock acquired by ioctl path */
2345 mutex_lock(&ioc->pci_access_mutex);
2346
2347 if (ioc->shost_recovery || ioc->pci_error_recovery ||
2348 ioc->is_driver_loading || ioc->remove_host) {
2349 ret = -EAGAIN;
2350 goto out_unlock_pciaccess;
2351 }
2352
2353 state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING;
2354 if (state == NON_BLOCKING) {
2355 if (!mutex_trylock(&ioc->ctl_cmds.mutex)) {
2356 ret = -EAGAIN;
2357 goto out_unlock_pciaccess;
2358 }
2359 } else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) {
2360 ret = -ERESTARTSYS;
2361 goto out_unlock_pciaccess;
2362 }
2363
2364
2365 switch (cmd) {
2366 case MPT3IOCINFO:
2367 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_iocinfo))
2368 ret = _ctl_getiocinfo(ioc, arg);
2369 break;
2370 #ifdef CONFIG_COMPAT
2371 case MPT3COMMAND32:
2372 #endif
2373 case MPT3COMMAND:
2374 {
2375 struct mpt3_ioctl_command __user *uarg;
2376 struct mpt3_ioctl_command karg;
2377
2378 #ifdef CONFIG_COMPAT
2379 if (compat) {
2380 ret = _ctl_compat_mpt_command(ioc, cmd, arg);
2381 break;
2382 }
2383 #endif
2384 if (copy_from_user(&karg, arg, sizeof(karg))) {
2385 pr_err("failure at %s:%d/%s()!\n",
2386 __FILE__, __LINE__, __func__);
2387 ret = -EFAULT;
2388 break;
2389 }
2390
2391 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_command)) {
2392 uarg = arg;
2393 ret = _ctl_do_mpt_command(ioc, karg, &uarg->mf);
2394 }
2395 break;
2396 }
2397 case MPT3EVENTQUERY:
2398 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventquery))
2399 ret = _ctl_eventquery(ioc, arg);
2400 break;
2401 case MPT3EVENTENABLE:
2402 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventenable))
2403 ret = _ctl_eventenable(ioc, arg);
2404 break;
2405 case MPT3EVENTREPORT:
2406 ret = _ctl_eventreport(ioc, arg);
2407 break;
2408 case MPT3HARDRESET:
2409 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_diag_reset))
2410 ret = _ctl_do_reset(ioc, arg);
2411 break;
2412 case MPT3BTDHMAPPING:
2413 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_btdh_mapping))
2414 ret = _ctl_btdh_mapping(ioc, arg);
2415 break;
2416 case MPT3DIAGREGISTER:
2417 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_register))
2418 ret = _ctl_diag_register(ioc, arg);
2419 break;
2420 case MPT3DIAGUNREGISTER:
2421 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_unregister))
2422 ret = _ctl_diag_unregister(ioc, arg);
2423 break;
2424 case MPT3DIAGQUERY:
2425 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_query))
2426 ret = _ctl_diag_query(ioc, arg);
2427 break;
2428 case MPT3DIAGRELEASE:
2429 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_release))
2430 ret = _ctl_diag_release(ioc, arg);
2431 break;
2432 case MPT3DIAGREADBUFFER:
2433 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_read_buffer))
2434 ret = _ctl_diag_read_buffer(ioc, arg);
2435 break;
2436 default:
2437 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2438 "unsupported ioctl opcode(0x%08x)\n", ioc->name, cmd));
2439 break;
2440 }
2441
2442 mutex_unlock(&ioc->ctl_cmds.mutex);
2443 out_unlock_pciaccess:
2444 mutex_unlock(&ioc->pci_access_mutex);
2445 return ret;
2446 }
2447
2448 /**
2449 * _ctl_ioctl - mpt3ctl main ioctl entry point (unlocked)
2450 * @file - (struct file)
2451 * @cmd - ioctl opcode
2452 * @arg -
2453 */
2454 static long
2455 _ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2456 {
2457 long ret;
2458
2459 /* pass MPI25_VERSION | MPI26_VERSION value,
2460 * to indicate that this ioctl cmd
2461 * came from mpt3ctl ioctl device.
2462 */
2463 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0,
2464 MPI25_VERSION | MPI26_VERSION);
2465 return ret;
2466 }
2467
2468 /**
2469 * _ctl_mpt2_ioctl - mpt2ctl main ioctl entry point (unlocked)
2470 * @file - (struct file)
2471 * @cmd - ioctl opcode
2472 * @arg -
2473 */
2474 static long
2475 _ctl_mpt2_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2476 {
2477 long ret;
2478
2479 /* pass MPI2_VERSION value, to indicate that this ioctl cmd
2480 * came from mpt2ctl ioctl device.
2481 */
2482 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0, MPI2_VERSION);
2483 return ret;
2484 }
2485 #ifdef CONFIG_COMPAT
2486 /**
2487 *_ ctl_ioctl_compat - main ioctl entry point (compat)
2488 * @file -
2489 * @cmd -
2490 * @arg -
2491 *
2492 * This routine handles 32 bit applications in 64bit os.
2493 */
2494 static long
2495 _ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
2496 {
2497 long ret;
2498
2499 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1,
2500 MPI25_VERSION | MPI26_VERSION);
2501 return ret;
2502 }
2503
2504 /**
2505 *_ ctl_mpt2_ioctl_compat - main ioctl entry point (compat)
2506 * @file -
2507 * @cmd -
2508 * @arg -
2509 *
2510 * This routine handles 32 bit applications in 64bit os.
2511 */
2512 static long
2513 _ctl_mpt2_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
2514 {
2515 long ret;
2516
2517 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1, MPI2_VERSION);
2518 return ret;
2519 }
2520 #endif
2521
2522 /* scsi host attributes */
2523 /**
2524 * _ctl_version_fw_show - firmware version
2525 * @cdev - pointer to embedded class device
2526 * @buf - the buffer returned
2527 *
2528 * A sysfs 'read-only' shost attribute.
2529 */
2530 static ssize_t
2531 _ctl_version_fw_show(struct device *cdev, struct device_attribute *attr,
2532 char *buf)
2533 {
2534 struct Scsi_Host *shost = class_to_shost(cdev);
2535 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2536
2537 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2538 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
2539 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
2540 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
2541 ioc->facts.FWVersion.Word & 0x000000FF);
2542 }
2543 static DEVICE_ATTR(version_fw, S_IRUGO, _ctl_version_fw_show, NULL);
2544
2545 /**
2546 * _ctl_version_bios_show - bios version
2547 * @cdev - pointer to embedded class device
2548 * @buf - the buffer returned
2549 *
2550 * A sysfs 'read-only' shost attribute.
2551 */
2552 static ssize_t
2553 _ctl_version_bios_show(struct device *cdev, struct device_attribute *attr,
2554 char *buf)
2555 {
2556 struct Scsi_Host *shost = class_to_shost(cdev);
2557 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2558
2559 u32 version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
2560
2561 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2562 (version & 0xFF000000) >> 24,
2563 (version & 0x00FF0000) >> 16,
2564 (version & 0x0000FF00) >> 8,
2565 version & 0x000000FF);
2566 }
2567 static DEVICE_ATTR(version_bios, S_IRUGO, _ctl_version_bios_show, NULL);
2568
2569 /**
2570 * _ctl_version_mpi_show - MPI (message passing interface) version
2571 * @cdev - pointer to embedded class device
2572 * @buf - the buffer returned
2573 *
2574 * A sysfs 'read-only' shost attribute.
2575 */
2576 static ssize_t
2577 _ctl_version_mpi_show(struct device *cdev, struct device_attribute *attr,
2578 char *buf)
2579 {
2580 struct Scsi_Host *shost = class_to_shost(cdev);
2581 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2582
2583 return snprintf(buf, PAGE_SIZE, "%03x.%02x\n",
2584 ioc->facts.MsgVersion, ioc->facts.HeaderVersion >> 8);
2585 }
2586 static DEVICE_ATTR(version_mpi, S_IRUGO, _ctl_version_mpi_show, NULL);
2587
2588 /**
2589 * _ctl_version_product_show - product name
2590 * @cdev - pointer to embedded class device
2591 * @buf - the buffer returned
2592 *
2593 * A sysfs 'read-only' shost attribute.
2594 */
2595 static ssize_t
2596 _ctl_version_product_show(struct device *cdev, struct device_attribute *attr,
2597 char *buf)
2598 {
2599 struct Scsi_Host *shost = class_to_shost(cdev);
2600 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2601
2602 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.ChipName);
2603 }
2604 static DEVICE_ATTR(version_product, S_IRUGO, _ctl_version_product_show, NULL);
2605
2606 /**
2607 * _ctl_version_nvdata_persistent_show - ndvata persistent version
2608 * @cdev - pointer to embedded class device
2609 * @buf - the buffer returned
2610 *
2611 * A sysfs 'read-only' shost attribute.
2612 */
2613 static ssize_t
2614 _ctl_version_nvdata_persistent_show(struct device *cdev,
2615 struct device_attribute *attr, char *buf)
2616 {
2617 struct Scsi_Host *shost = class_to_shost(cdev);
2618 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2619
2620 return snprintf(buf, PAGE_SIZE, "%08xh\n",
2621 le32_to_cpu(ioc->iounit_pg0.NvdataVersionPersistent.Word));
2622 }
2623 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
2624 _ctl_version_nvdata_persistent_show, NULL);
2625
2626 /**
2627 * _ctl_version_nvdata_default_show - nvdata default version
2628 * @cdev - pointer to embedded class device
2629 * @buf - the buffer returned
2630 *
2631 * A sysfs 'read-only' shost attribute.
2632 */
2633 static ssize_t
2634 _ctl_version_nvdata_default_show(struct device *cdev, struct device_attribute
2635 *attr, char *buf)
2636 {
2637 struct Scsi_Host *shost = class_to_shost(cdev);
2638 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2639
2640 return snprintf(buf, PAGE_SIZE, "%08xh\n",
2641 le32_to_cpu(ioc->iounit_pg0.NvdataVersionDefault.Word));
2642 }
2643 static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
2644 _ctl_version_nvdata_default_show, NULL);
2645
2646 /**
2647 * _ctl_board_name_show - board name
2648 * @cdev - pointer to embedded class device
2649 * @buf - the buffer returned
2650 *
2651 * A sysfs 'read-only' shost attribute.
2652 */
2653 static ssize_t
2654 _ctl_board_name_show(struct device *cdev, struct device_attribute *attr,
2655 char *buf)
2656 {
2657 struct Scsi_Host *shost = class_to_shost(cdev);
2658 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2659
2660 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardName);
2661 }
2662 static DEVICE_ATTR(board_name, S_IRUGO, _ctl_board_name_show, NULL);
2663
2664 /**
2665 * _ctl_board_assembly_show - board assembly name
2666 * @cdev - pointer to embedded class device
2667 * @buf - the buffer returned
2668 *
2669 * A sysfs 'read-only' shost attribute.
2670 */
2671 static ssize_t
2672 _ctl_board_assembly_show(struct device *cdev, struct device_attribute *attr,
2673 char *buf)
2674 {
2675 struct Scsi_Host *shost = class_to_shost(cdev);
2676 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2677
2678 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardAssembly);
2679 }
2680 static DEVICE_ATTR(board_assembly, S_IRUGO, _ctl_board_assembly_show, NULL);
2681
2682 /**
2683 * _ctl_board_tracer_show - board tracer number
2684 * @cdev - pointer to embedded class device
2685 * @buf - the buffer returned
2686 *
2687 * A sysfs 'read-only' shost attribute.
2688 */
2689 static ssize_t
2690 _ctl_board_tracer_show(struct device *cdev, struct device_attribute *attr,
2691 char *buf)
2692 {
2693 struct Scsi_Host *shost = class_to_shost(cdev);
2694 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2695
2696 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardTracerNumber);
2697 }
2698 static DEVICE_ATTR(board_tracer, S_IRUGO, _ctl_board_tracer_show, NULL);
2699
2700 /**
2701 * _ctl_io_delay_show - io missing delay
2702 * @cdev - pointer to embedded class device
2703 * @buf - the buffer returned
2704 *
2705 * This is for firmware implemention for deboucing device
2706 * removal events.
2707 *
2708 * A sysfs 'read-only' shost attribute.
2709 */
2710 static ssize_t
2711 _ctl_io_delay_show(struct device *cdev, struct device_attribute *attr,
2712 char *buf)
2713 {
2714 struct Scsi_Host *shost = class_to_shost(cdev);
2715 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2716
2717 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
2718 }
2719 static DEVICE_ATTR(io_delay, S_IRUGO, _ctl_io_delay_show, NULL);
2720
2721 /**
2722 * _ctl_device_delay_show - device missing delay
2723 * @cdev - pointer to embedded class device
2724 * @buf - the buffer returned
2725 *
2726 * This is for firmware implemention for deboucing device
2727 * removal events.
2728 *
2729 * A sysfs 'read-only' shost attribute.
2730 */
2731 static ssize_t
2732 _ctl_device_delay_show(struct device *cdev, struct device_attribute *attr,
2733 char *buf)
2734 {
2735 struct Scsi_Host *shost = class_to_shost(cdev);
2736 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2737
2738 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
2739 }
2740 static DEVICE_ATTR(device_delay, S_IRUGO, _ctl_device_delay_show, NULL);
2741
2742 /**
2743 * _ctl_fw_queue_depth_show - global credits
2744 * @cdev - pointer to embedded class device
2745 * @buf - the buffer returned
2746 *
2747 * This is firmware queue depth limit
2748 *
2749 * A sysfs 'read-only' shost attribute.
2750 */
2751 static ssize_t
2752 _ctl_fw_queue_depth_show(struct device *cdev, struct device_attribute *attr,
2753 char *buf)
2754 {
2755 struct Scsi_Host *shost = class_to_shost(cdev);
2756 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2757
2758 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->facts.RequestCredit);
2759 }
2760 static DEVICE_ATTR(fw_queue_depth, S_IRUGO, _ctl_fw_queue_depth_show, NULL);
2761
2762 /**
2763 * _ctl_sas_address_show - sas address
2764 * @cdev - pointer to embedded class device
2765 * @buf - the buffer returned
2766 *
2767 * This is the controller sas address
2768 *
2769 * A sysfs 'read-only' shost attribute.
2770 */
2771 static ssize_t
2772 _ctl_host_sas_address_show(struct device *cdev, struct device_attribute *attr,
2773 char *buf)
2774
2775 {
2776 struct Scsi_Host *shost = class_to_shost(cdev);
2777 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2778
2779 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
2780 (unsigned long long)ioc->sas_hba.sas_address);
2781 }
2782 static DEVICE_ATTR(host_sas_address, S_IRUGO,
2783 _ctl_host_sas_address_show, NULL);
2784
2785 /**
2786 * _ctl_logging_level_show - logging level
2787 * @cdev - pointer to embedded class device
2788 * @buf - the buffer returned
2789 *
2790 * A sysfs 'read/write' shost attribute.
2791 */
2792 static ssize_t
2793 _ctl_logging_level_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, "%08xh\n", ioc->logging_level);
2800 }
2801 static ssize_t
2802 _ctl_logging_level_store(struct device *cdev, struct device_attribute *attr,
2803 const char *buf, size_t count)
2804 {
2805 struct Scsi_Host *shost = class_to_shost(cdev);
2806 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2807 int val = 0;
2808
2809 if (sscanf(buf, "%x", &val) != 1)
2810 return -EINVAL;
2811
2812 ioc->logging_level = val;
2813 pr_info(MPT3SAS_FMT "logging_level=%08xh\n", ioc->name,
2814 ioc->logging_level);
2815 return strlen(buf);
2816 }
2817 static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR, _ctl_logging_level_show,
2818 _ctl_logging_level_store);
2819
2820 /**
2821 * _ctl_fwfault_debug_show - show/store fwfault_debug
2822 * @cdev - pointer to embedded class device
2823 * @buf - the buffer returned
2824 *
2825 * mpt3sas_fwfault_debug is command line option
2826 * A sysfs 'read/write' shost attribute.
2827 */
2828 static ssize_t
2829 _ctl_fwfault_debug_show(struct device *cdev, struct device_attribute *attr,
2830 char *buf)
2831 {
2832 struct Scsi_Host *shost = class_to_shost(cdev);
2833 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2834
2835 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->fwfault_debug);
2836 }
2837 static ssize_t
2838 _ctl_fwfault_debug_store(struct device *cdev, struct device_attribute *attr,
2839 const char *buf, size_t count)
2840 {
2841 struct Scsi_Host *shost = class_to_shost(cdev);
2842 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2843 int val = 0;
2844
2845 if (sscanf(buf, "%d", &val) != 1)
2846 return -EINVAL;
2847
2848 ioc->fwfault_debug = val;
2849 pr_info(MPT3SAS_FMT "fwfault_debug=%d\n", ioc->name,
2850 ioc->fwfault_debug);
2851 return strlen(buf);
2852 }
2853 static DEVICE_ATTR(fwfault_debug, S_IRUGO | S_IWUSR,
2854 _ctl_fwfault_debug_show, _ctl_fwfault_debug_store);
2855
2856 /**
2857 * _ctl_ioc_reset_count_show - ioc reset count
2858 * @cdev - pointer to embedded class device
2859 * @buf - the buffer returned
2860 *
2861 * This is firmware queue depth limit
2862 *
2863 * A sysfs 'read-only' shost attribute.
2864 */
2865 static ssize_t
2866 _ctl_ioc_reset_count_show(struct device *cdev, struct device_attribute *attr,
2867 char *buf)
2868 {
2869 struct Scsi_Host *shost = class_to_shost(cdev);
2870 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2871
2872 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->ioc_reset_count);
2873 }
2874 static DEVICE_ATTR(ioc_reset_count, S_IRUGO, _ctl_ioc_reset_count_show, NULL);
2875
2876 /**
2877 * _ctl_ioc_reply_queue_count_show - number of reply queues
2878 * @cdev - pointer to embedded class device
2879 * @buf - the buffer returned
2880 *
2881 * This is number of reply queues
2882 *
2883 * A sysfs 'read-only' shost attribute.
2884 */
2885 static ssize_t
2886 _ctl_ioc_reply_queue_count_show(struct device *cdev,
2887 struct device_attribute *attr, char *buf)
2888 {
2889 u8 reply_queue_count;
2890 struct Scsi_Host *shost = class_to_shost(cdev);
2891 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2892
2893 if ((ioc->facts.IOCCapabilities &
2894 MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX) && ioc->msix_enable)
2895 reply_queue_count = ioc->reply_queue_count;
2896 else
2897 reply_queue_count = 1;
2898
2899 return snprintf(buf, PAGE_SIZE, "%d\n", reply_queue_count);
2900 }
2901 static DEVICE_ATTR(reply_queue_count, S_IRUGO, _ctl_ioc_reply_queue_count_show,
2902 NULL);
2903
2904 /**
2905 * _ctl_BRM_status_show - Backup Rail Monitor Status
2906 * @cdev - pointer to embedded class device
2907 * @buf - the buffer returned
2908 *
2909 * This is number of reply queues
2910 *
2911 * A sysfs 'read-only' shost attribute.
2912 */
2913 static ssize_t
2914 _ctl_BRM_status_show(struct device *cdev, struct device_attribute *attr,
2915 char *buf)
2916 {
2917 struct Scsi_Host *shost = class_to_shost(cdev);
2918 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2919 Mpi2IOUnitPage3_t *io_unit_pg3 = NULL;
2920 Mpi2ConfigReply_t mpi_reply;
2921 u16 backup_rail_monitor_status = 0;
2922 u16 ioc_status;
2923 int sz;
2924 ssize_t rc = 0;
2925
2926 if (!ioc->is_warpdrive) {
2927 pr_err(MPT3SAS_FMT "%s: BRM attribute is only for"
2928 " warpdrive\n", ioc->name, __func__);
2929 goto out;
2930 }
2931 /* pci_access_mutex lock acquired by sysfs show path */
2932 mutex_lock(&ioc->pci_access_mutex);
2933 if (ioc->pci_error_recovery || ioc->remove_host) {
2934 mutex_unlock(&ioc->pci_access_mutex);
2935 return 0;
2936 }
2937
2938 /* allocate upto GPIOVal 36 entries */
2939 sz = offsetof(Mpi2IOUnitPage3_t, GPIOVal) + (sizeof(u16) * 36);
2940 io_unit_pg3 = kzalloc(sz, GFP_KERNEL);
2941 if (!io_unit_pg3) {
2942 pr_err(MPT3SAS_FMT "%s: failed allocating memory "
2943 "for iounit_pg3: (%d) bytes\n", ioc->name, __func__, sz);
2944 goto out;
2945 }
2946
2947 if (mpt3sas_config_get_iounit_pg3(ioc, &mpi_reply, io_unit_pg3, sz) !=
2948 0) {
2949 pr_err(MPT3SAS_FMT
2950 "%s: failed reading iounit_pg3\n", ioc->name,
2951 __func__);
2952 goto out;
2953 }
2954
2955 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
2956 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
2957 pr_err(MPT3SAS_FMT "%s: iounit_pg3 failed with "
2958 "ioc_status(0x%04x)\n", ioc->name, __func__, ioc_status);
2959 goto out;
2960 }
2961
2962 if (io_unit_pg3->GPIOCount < 25) {
2963 pr_err(MPT3SAS_FMT "%s: iounit_pg3->GPIOCount less than "
2964 "25 entries, detected (%d) entries\n", ioc->name, __func__,
2965 io_unit_pg3->GPIOCount);
2966 goto out;
2967 }
2968
2969 /* BRM status is in bit zero of GPIOVal[24] */
2970 backup_rail_monitor_status = le16_to_cpu(io_unit_pg3->GPIOVal[24]);
2971 rc = snprintf(buf, PAGE_SIZE, "%d\n", (backup_rail_monitor_status & 1));
2972
2973 out:
2974 kfree(io_unit_pg3);
2975 mutex_unlock(&ioc->pci_access_mutex);
2976 return rc;
2977 }
2978 static DEVICE_ATTR(BRM_status, S_IRUGO, _ctl_BRM_status_show, NULL);
2979
2980 struct DIAG_BUFFER_START {
2981 __le32 Size;
2982 __le32 DiagVersion;
2983 u8 BufferType;
2984 u8 Reserved[3];
2985 __le32 Reserved1;
2986 __le32 Reserved2;
2987 __le32 Reserved3;
2988 };
2989
2990 /**
2991 * _ctl_host_trace_buffer_size_show - host buffer size (trace only)
2992 * @cdev - pointer to embedded class device
2993 * @buf - the buffer returned
2994 *
2995 * A sysfs 'read-only' shost attribute.
2996 */
2997 static ssize_t
2998 _ctl_host_trace_buffer_size_show(struct device *cdev,
2999 struct device_attribute *attr, char *buf)
3000 {
3001 struct Scsi_Host *shost = class_to_shost(cdev);
3002 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3003 u32 size = 0;
3004 struct DIAG_BUFFER_START *request_data;
3005
3006 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
3007 pr_err(MPT3SAS_FMT
3008 "%s: host_trace_buffer is not registered\n",
3009 ioc->name, __func__);
3010 return 0;
3011 }
3012
3013 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3014 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
3015 pr_err(MPT3SAS_FMT
3016 "%s: host_trace_buffer is not registered\n",
3017 ioc->name, __func__);
3018 return 0;
3019 }
3020
3021 request_data = (struct DIAG_BUFFER_START *)
3022 ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE];
3023 if ((le32_to_cpu(request_data->DiagVersion) == 0x00000000 ||
3024 le32_to_cpu(request_data->DiagVersion) == 0x01000000 ||
3025 le32_to_cpu(request_data->DiagVersion) == 0x01010000) &&
3026 le32_to_cpu(request_data->Reserved3) == 0x4742444c)
3027 size = le32_to_cpu(request_data->Size);
3028
3029 ioc->ring_buffer_sz = size;
3030 return snprintf(buf, PAGE_SIZE, "%d\n", size);
3031 }
3032 static DEVICE_ATTR(host_trace_buffer_size, S_IRUGO,
3033 _ctl_host_trace_buffer_size_show, NULL);
3034
3035 /**
3036 * _ctl_host_trace_buffer_show - firmware ring buffer (trace only)
3037 * @cdev - pointer to embedded class device
3038 * @buf - the buffer returned
3039 *
3040 * A sysfs 'read/write' shost attribute.
3041 *
3042 * You will only be able to read 4k bytes of ring buffer at a time.
3043 * In order to read beyond 4k bytes, you will have to write out the
3044 * offset to the same attribute, it will move the pointer.
3045 */
3046 static ssize_t
3047 _ctl_host_trace_buffer_show(struct device *cdev, struct device_attribute *attr,
3048 char *buf)
3049 {
3050 struct Scsi_Host *shost = class_to_shost(cdev);
3051 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3052 void *request_data;
3053 u32 size;
3054
3055 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
3056 pr_err(MPT3SAS_FMT
3057 "%s: host_trace_buffer is not registered\n",
3058 ioc->name, __func__);
3059 return 0;
3060 }
3061
3062 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3063 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
3064 pr_err(MPT3SAS_FMT
3065 "%s: host_trace_buffer is not registered\n",
3066 ioc->name, __func__);
3067 return 0;
3068 }
3069
3070 if (ioc->ring_buffer_offset > ioc->ring_buffer_sz)
3071 return 0;
3072
3073 size = ioc->ring_buffer_sz - ioc->ring_buffer_offset;
3074 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size;
3075 request_data = ioc->diag_buffer[0] + ioc->ring_buffer_offset;
3076 memcpy(buf, request_data, size);
3077 return size;
3078 }
3079
3080 static ssize_t
3081 _ctl_host_trace_buffer_store(struct device *cdev, struct device_attribute *attr,
3082 const char *buf, size_t count)
3083 {
3084 struct Scsi_Host *shost = class_to_shost(cdev);
3085 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3086 int val = 0;
3087
3088 if (sscanf(buf, "%d", &val) != 1)
3089 return -EINVAL;
3090
3091 ioc->ring_buffer_offset = val;
3092 return strlen(buf);
3093 }
3094 static DEVICE_ATTR(host_trace_buffer, S_IRUGO | S_IWUSR,
3095 _ctl_host_trace_buffer_show, _ctl_host_trace_buffer_store);
3096
3097
3098 /*****************************************/
3099
3100 /**
3101 * _ctl_host_trace_buffer_enable_show - firmware ring buffer (trace only)
3102 * @cdev - pointer to embedded class device
3103 * @buf - the buffer returned
3104 *
3105 * A sysfs 'read/write' shost attribute.
3106 *
3107 * This is a mechnism to post/release host_trace_buffers
3108 */
3109 static ssize_t
3110 _ctl_host_trace_buffer_enable_show(struct device *cdev,
3111 struct device_attribute *attr, char *buf)
3112 {
3113 struct Scsi_Host *shost = class_to_shost(cdev);
3114 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3115
3116 if ((!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) ||
3117 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3118 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0))
3119 return snprintf(buf, PAGE_SIZE, "off\n");
3120 else if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3121 MPT3_DIAG_BUFFER_IS_RELEASED))
3122 return snprintf(buf, PAGE_SIZE, "release\n");
3123 else
3124 return snprintf(buf, PAGE_SIZE, "post\n");
3125 }
3126
3127 static ssize_t
3128 _ctl_host_trace_buffer_enable_store(struct device *cdev,
3129 struct device_attribute *attr, const char *buf, size_t count)
3130 {
3131 struct Scsi_Host *shost = class_to_shost(cdev);
3132 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3133 char str[10] = "";
3134 struct mpt3_diag_register diag_register;
3135 u8 issue_reset = 0;
3136
3137 /* don't allow post/release occurr while recovery is active */
3138 if (ioc->shost_recovery || ioc->remove_host ||
3139 ioc->pci_error_recovery || ioc->is_driver_loading)
3140 return -EBUSY;
3141
3142 if (sscanf(buf, "%9s", str) != 1)
3143 return -EINVAL;
3144
3145 if (!strcmp(str, "post")) {
3146 /* exit out if host buffers are already posted */
3147 if ((ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) &&
3148 (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3149 MPT3_DIAG_BUFFER_IS_REGISTERED) &&
3150 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3151 MPT3_DIAG_BUFFER_IS_RELEASED) == 0))
3152 goto out;
3153 memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
3154 pr_info(MPT3SAS_FMT "posting host trace buffers\n",
3155 ioc->name);
3156 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
3157 diag_register.requested_buffer_size = (1024 * 1024);
3158 diag_register.unique_id = 0x7075900;
3159 ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] = 0;
3160 _ctl_diag_register_2(ioc, &diag_register);
3161 } else if (!strcmp(str, "release")) {
3162 /* exit out if host buffers are already released */
3163 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE])
3164 goto out;
3165 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3166 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0)
3167 goto out;
3168 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3169 MPT3_DIAG_BUFFER_IS_RELEASED))
3170 goto out;
3171 pr_info(MPT3SAS_FMT "releasing host trace buffer\n",
3172 ioc->name);
3173 mpt3sas_send_diag_release(ioc, MPI2_DIAG_BUF_TYPE_TRACE,
3174 &issue_reset);
3175 }
3176
3177 out:
3178 return strlen(buf);
3179 }
3180 static DEVICE_ATTR(host_trace_buffer_enable, S_IRUGO | S_IWUSR,
3181 _ctl_host_trace_buffer_enable_show,
3182 _ctl_host_trace_buffer_enable_store);
3183
3184 /*********** diagnostic trigger suppport *********************************/
3185
3186 /**
3187 * _ctl_diag_trigger_master_show - show the diag_trigger_master attribute
3188 * @cdev - pointer to embedded class device
3189 * @buf - the buffer returned
3190 *
3191 * A sysfs 'read/write' shost attribute.
3192 */
3193 static ssize_t
3194 _ctl_diag_trigger_master_show(struct device *cdev,
3195 struct device_attribute *attr, char *buf)
3196
3197 {
3198 struct Scsi_Host *shost = class_to_shost(cdev);
3199 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3200 unsigned long flags;
3201 ssize_t rc;
3202
3203 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3204 rc = sizeof(struct SL_WH_MASTER_TRIGGER_T);
3205 memcpy(buf, &ioc->diag_trigger_master, rc);
3206 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3207 return rc;
3208 }
3209
3210 /**
3211 * _ctl_diag_trigger_master_store - store the diag_trigger_master attribute
3212 * @cdev - pointer to embedded class device
3213 * @buf - the buffer returned
3214 *
3215 * A sysfs 'read/write' shost attribute.
3216 */
3217 static ssize_t
3218 _ctl_diag_trigger_master_store(struct device *cdev,
3219 struct device_attribute *attr, const char *buf, size_t count)
3220
3221 {
3222 struct Scsi_Host *shost = class_to_shost(cdev);
3223 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3224 unsigned long flags;
3225 ssize_t rc;
3226
3227 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3228 rc = min(sizeof(struct SL_WH_MASTER_TRIGGER_T), count);
3229 memset(&ioc->diag_trigger_master, 0,
3230 sizeof(struct SL_WH_MASTER_TRIGGER_T));
3231 memcpy(&ioc->diag_trigger_master, buf, rc);
3232 ioc->diag_trigger_master.MasterData |=
3233 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
3234 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3235 return rc;
3236 }
3237 static DEVICE_ATTR(diag_trigger_master, S_IRUGO | S_IWUSR,
3238 _ctl_diag_trigger_master_show, _ctl_diag_trigger_master_store);
3239
3240
3241 /**
3242 * _ctl_diag_trigger_event_show - show the diag_trigger_event attribute
3243 * @cdev - pointer to embedded class device
3244 * @buf - the buffer returned
3245 *
3246 * A sysfs 'read/write' shost attribute.
3247 */
3248 static ssize_t
3249 _ctl_diag_trigger_event_show(struct device *cdev,
3250 struct device_attribute *attr, char *buf)
3251 {
3252 struct Scsi_Host *shost = class_to_shost(cdev);
3253 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3254 unsigned long flags;
3255 ssize_t rc;
3256
3257 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3258 rc = sizeof(struct SL_WH_EVENT_TRIGGERS_T);
3259 memcpy(buf, &ioc->diag_trigger_event, rc);
3260 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3261 return rc;
3262 }
3263
3264 /**
3265 * _ctl_diag_trigger_event_store - store the diag_trigger_event attribute
3266 * @cdev - pointer to embedded class device
3267 * @buf - the buffer returned
3268 *
3269 * A sysfs 'read/write' shost attribute.
3270 */
3271 static ssize_t
3272 _ctl_diag_trigger_event_store(struct device *cdev,
3273 struct device_attribute *attr, const char *buf, size_t count)
3274
3275 {
3276 struct Scsi_Host *shost = class_to_shost(cdev);
3277 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3278 unsigned long flags;
3279 ssize_t sz;
3280
3281 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3282 sz = min(sizeof(struct SL_WH_EVENT_TRIGGERS_T), count);
3283 memset(&ioc->diag_trigger_event, 0,
3284 sizeof(struct SL_WH_EVENT_TRIGGERS_T));
3285 memcpy(&ioc->diag_trigger_event, buf, sz);
3286 if (ioc->diag_trigger_event.ValidEntries > NUM_VALID_ENTRIES)
3287 ioc->diag_trigger_event.ValidEntries = NUM_VALID_ENTRIES;
3288 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3289 return sz;
3290 }
3291 static DEVICE_ATTR(diag_trigger_event, S_IRUGO | S_IWUSR,
3292 _ctl_diag_trigger_event_show, _ctl_diag_trigger_event_store);
3293
3294
3295 /**
3296 * _ctl_diag_trigger_scsi_show - show the diag_trigger_scsi attribute
3297 * @cdev - pointer to embedded class device
3298 * @buf - the buffer returned
3299 *
3300 * A sysfs 'read/write' shost attribute.
3301 */
3302 static ssize_t
3303 _ctl_diag_trigger_scsi_show(struct device *cdev,
3304 struct device_attribute *attr, char *buf)
3305 {
3306 struct Scsi_Host *shost = class_to_shost(cdev);
3307 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3308 unsigned long flags;
3309 ssize_t rc;
3310
3311 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3312 rc = sizeof(struct SL_WH_SCSI_TRIGGERS_T);
3313 memcpy(buf, &ioc->diag_trigger_scsi, rc);
3314 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3315 return rc;
3316 }
3317
3318 /**
3319 * _ctl_diag_trigger_scsi_store - store the diag_trigger_scsi attribute
3320 * @cdev - pointer to embedded class device
3321 * @buf - the buffer returned
3322 *
3323 * A sysfs 'read/write' shost attribute.
3324 */
3325 static ssize_t
3326 _ctl_diag_trigger_scsi_store(struct device *cdev,
3327 struct device_attribute *attr, const char *buf, size_t count)
3328 {
3329 struct Scsi_Host *shost = class_to_shost(cdev);
3330 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3331 unsigned long flags;
3332 ssize_t sz;
3333
3334 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3335 sz = min(sizeof(struct SL_WH_SCSI_TRIGGERS_T), count);
3336 memset(&ioc->diag_trigger_scsi, 0,
3337 sizeof(struct SL_WH_EVENT_TRIGGERS_T));
3338 memcpy(&ioc->diag_trigger_scsi, buf, sz);
3339 if (ioc->diag_trigger_scsi.ValidEntries > NUM_VALID_ENTRIES)
3340 ioc->diag_trigger_scsi.ValidEntries = NUM_VALID_ENTRIES;
3341 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3342 return sz;
3343 }
3344 static DEVICE_ATTR(diag_trigger_scsi, S_IRUGO | S_IWUSR,
3345 _ctl_diag_trigger_scsi_show, _ctl_diag_trigger_scsi_store);
3346
3347
3348 /**
3349 * _ctl_diag_trigger_scsi_show - show the diag_trigger_mpi attribute
3350 * @cdev - pointer to embedded class device
3351 * @buf - the buffer returned
3352 *
3353 * A sysfs 'read/write' shost attribute.
3354 */
3355 static ssize_t
3356 _ctl_diag_trigger_mpi_show(struct device *cdev,
3357 struct device_attribute *attr, char *buf)
3358 {
3359 struct Scsi_Host *shost = class_to_shost(cdev);
3360 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3361 unsigned long flags;
3362 ssize_t rc;
3363
3364 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3365 rc = sizeof(struct SL_WH_MPI_TRIGGERS_T);
3366 memcpy(buf, &ioc->diag_trigger_mpi, rc);
3367 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3368 return rc;
3369 }
3370
3371 /**
3372 * _ctl_diag_trigger_mpi_store - store the diag_trigger_mpi attribute
3373 * @cdev - pointer to embedded class device
3374 * @buf - the buffer returned
3375 *
3376 * A sysfs 'read/write' shost attribute.
3377 */
3378 static ssize_t
3379 _ctl_diag_trigger_mpi_store(struct device *cdev,
3380 struct device_attribute *attr, const char *buf, size_t count)
3381 {
3382 struct Scsi_Host *shost = class_to_shost(cdev);
3383 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3384 unsigned long flags;
3385 ssize_t sz;
3386
3387 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3388 sz = min(sizeof(struct SL_WH_MPI_TRIGGERS_T), count);
3389 memset(&ioc->diag_trigger_mpi, 0,
3390 sizeof(ioc->diag_trigger_mpi));
3391 memcpy(&ioc->diag_trigger_mpi, buf, sz);
3392 if (ioc->diag_trigger_mpi.ValidEntries > NUM_VALID_ENTRIES)
3393 ioc->diag_trigger_mpi.ValidEntries = NUM_VALID_ENTRIES;
3394 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3395 return sz;
3396 }
3397
3398 static DEVICE_ATTR(diag_trigger_mpi, S_IRUGO | S_IWUSR,
3399 _ctl_diag_trigger_mpi_show, _ctl_diag_trigger_mpi_store);
3400
3401 /*********** diagnostic trigger suppport *** END ****************************/
3402
3403 /*****************************************/
3404
3405 struct device_attribute *mpt3sas_host_attrs[] = {
3406 &dev_attr_version_fw,
3407 &dev_attr_version_bios,
3408 &dev_attr_version_mpi,
3409 &dev_attr_version_product,
3410 &dev_attr_version_nvdata_persistent,
3411 &dev_attr_version_nvdata_default,
3412 &dev_attr_board_name,
3413 &dev_attr_board_assembly,
3414 &dev_attr_board_tracer,
3415 &dev_attr_io_delay,
3416 &dev_attr_device_delay,
3417 &dev_attr_logging_level,
3418 &dev_attr_fwfault_debug,
3419 &dev_attr_fw_queue_depth,
3420 &dev_attr_host_sas_address,
3421 &dev_attr_ioc_reset_count,
3422 &dev_attr_host_trace_buffer_size,
3423 &dev_attr_host_trace_buffer,
3424 &dev_attr_host_trace_buffer_enable,
3425 &dev_attr_reply_queue_count,
3426 &dev_attr_diag_trigger_master,
3427 &dev_attr_diag_trigger_event,
3428 &dev_attr_diag_trigger_scsi,
3429 &dev_attr_diag_trigger_mpi,
3430 &dev_attr_BRM_status,
3431 NULL,
3432 };
3433
3434 /* device attributes */
3435
3436 /**
3437 * _ctl_device_sas_address_show - sas address
3438 * @cdev - pointer to embedded class device
3439 * @buf - the buffer returned
3440 *
3441 * This is the sas address for the target
3442 *
3443 * A sysfs 'read-only' shost attribute.
3444 */
3445 static ssize_t
3446 _ctl_device_sas_address_show(struct device *dev, struct device_attribute *attr,
3447 char *buf)
3448 {
3449 struct scsi_device *sdev = to_scsi_device(dev);
3450 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3451
3452 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
3453 (unsigned long long)sas_device_priv_data->sas_target->sas_address);
3454 }
3455 static DEVICE_ATTR(sas_address, S_IRUGO, _ctl_device_sas_address_show, NULL);
3456
3457 /**
3458 * _ctl_device_handle_show - device handle
3459 * @cdev - pointer to embedded class device
3460 * @buf - the buffer returned
3461 *
3462 * This is the firmware assigned device handle
3463 *
3464 * A sysfs 'read-only' shost attribute.
3465 */
3466 static ssize_t
3467 _ctl_device_handle_show(struct device *dev, struct device_attribute *attr,
3468 char *buf)
3469 {
3470 struct scsi_device *sdev = to_scsi_device(dev);
3471 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3472
3473 return snprintf(buf, PAGE_SIZE, "0x%04x\n",
3474 sas_device_priv_data->sas_target->handle);
3475 }
3476 static DEVICE_ATTR(sas_device_handle, S_IRUGO, _ctl_device_handle_show, NULL);
3477
3478 /**
3479 * _ctl_device_ncq_io_prio_show - send prioritized io commands to device
3480 * @dev - pointer to embedded device
3481 * @buf - the buffer returned
3482 *
3483 * A sysfs 'read/write' sdev attribute, only works with SATA
3484 */
3485 static ssize_t
3486 _ctl_device_ncq_prio_enable_show(struct device *dev,
3487 struct device_attribute *attr, char *buf)
3488 {
3489 struct scsi_device *sdev = to_scsi_device(dev);
3490 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3491
3492 return snprintf(buf, PAGE_SIZE, "%d\n",
3493 sas_device_priv_data->ncq_prio_enable);
3494 }
3495
3496 static ssize_t
3497 _ctl_device_ncq_prio_enable_store(struct device *dev,
3498 struct device_attribute *attr,
3499 const char *buf, size_t count)
3500 {
3501 struct scsi_device *sdev = to_scsi_device(dev);
3502 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3503 bool ncq_prio_enable = 0;
3504
3505 if (kstrtobool(buf, &ncq_prio_enable))
3506 return -EINVAL;
3507
3508 if (!scsih_ncq_prio_supp(sdev))
3509 return -EINVAL;
3510
3511 sas_device_priv_data->ncq_prio_enable = ncq_prio_enable;
3512 return strlen(buf);
3513 }
3514 static DEVICE_ATTR(sas_ncq_prio_enable, S_IRUGO | S_IWUSR,
3515 _ctl_device_ncq_prio_enable_show,
3516 _ctl_device_ncq_prio_enable_store);
3517
3518 struct device_attribute *mpt3sas_dev_attrs[] = {
3519 &dev_attr_sas_address,
3520 &dev_attr_sas_device_handle,
3521 &dev_attr_sas_ncq_prio_enable,
3522 NULL,
3523 };
3524
3525 /* file operations table for mpt3ctl device */
3526 static const struct file_operations ctl_fops = {
3527 .owner = THIS_MODULE,
3528 .unlocked_ioctl = _ctl_ioctl,
3529 .poll = _ctl_poll,
3530 .fasync = _ctl_fasync,
3531 #ifdef CONFIG_COMPAT
3532 .compat_ioctl = _ctl_ioctl_compat,
3533 #endif
3534 };
3535
3536 /* file operations table for mpt2ctl device */
3537 static const struct file_operations ctl_gen2_fops = {
3538 .owner = THIS_MODULE,
3539 .unlocked_ioctl = _ctl_mpt2_ioctl,
3540 .poll = _ctl_poll,
3541 .fasync = _ctl_fasync,
3542 #ifdef CONFIG_COMPAT
3543 .compat_ioctl = _ctl_mpt2_ioctl_compat,
3544 #endif
3545 };
3546
3547 static struct miscdevice ctl_dev = {
3548 .minor = MPT3SAS_MINOR,
3549 .name = MPT3SAS_DEV_NAME,
3550 .fops = &ctl_fops,
3551 };
3552
3553 static struct miscdevice gen2_ctl_dev = {
3554 .minor = MPT2SAS_MINOR,
3555 .name = MPT2SAS_DEV_NAME,
3556 .fops = &ctl_gen2_fops,
3557 };
3558
3559 /**
3560 * mpt3sas_ctl_init - main entry point for ctl.
3561 *
3562 */
3563 void
3564 mpt3sas_ctl_init(ushort hbas_to_enumerate)
3565 {
3566 async_queue = NULL;
3567
3568 /* Don't register mpt3ctl ioctl device if
3569 * hbas_to_enumarate is one.
3570 */
3571 if (hbas_to_enumerate != 1)
3572 if (misc_register(&ctl_dev) < 0)
3573 pr_err("%s can't register misc device [minor=%d]\n",
3574 MPT3SAS_DRIVER_NAME, MPT3SAS_MINOR);
3575
3576 /* Don't register mpt3ctl ioctl device if
3577 * hbas_to_enumarate is two.
3578 */
3579 if (hbas_to_enumerate != 2)
3580 if (misc_register(&gen2_ctl_dev) < 0)
3581 pr_err("%s can't register misc device [minor=%d]\n",
3582 MPT2SAS_DRIVER_NAME, MPT2SAS_MINOR);
3583
3584 init_waitqueue_head(&ctl_poll_wait);
3585 }
3586
3587 /**
3588 * mpt3sas_ctl_exit - exit point for ctl
3589 *
3590 */
3591 void
3592 mpt3sas_ctl_exit(ushort hbas_to_enumerate)
3593 {
3594 struct MPT3SAS_ADAPTER *ioc;
3595 int i;
3596
3597 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
3598
3599 /* free memory associated to diag buffers */
3600 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
3601 if (!ioc->diag_buffer[i])
3602 continue;
3603 if (!(ioc->diag_buffer_status[i] &
3604 MPT3_DIAG_BUFFER_IS_REGISTERED))
3605 continue;
3606 if ((ioc->diag_buffer_status[i] &
3607 MPT3_DIAG_BUFFER_IS_RELEASED))
3608 continue;
3609 pci_free_consistent(ioc->pdev, ioc->diag_buffer_sz[i],
3610 ioc->diag_buffer[i], ioc->diag_buffer_dma[i]);
3611 ioc->diag_buffer[i] = NULL;
3612 ioc->diag_buffer_status[i] = 0;
3613 }
3614
3615 kfree(ioc->event_log);
3616 }
3617 if (hbas_to_enumerate != 1)
3618 misc_deregister(&ctl_dev);
3619 if (hbas_to_enumerate != 2)
3620 misc_deregister(&gen2_ctl_dev);
3621 }
Linux with added FPC-III support