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
_ctl_display_some_debug(struct MPT3SAS_ADAPTER * ioc,u16 smid,char * calling_function_name,MPI2DefaultReply_t * mpi_reply)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 ioc_info(ioc, "%s: %s, smid(%d)\n", calling_function_name, desc, smid);
189
190 if (!mpi_reply)
191 return;
192
193 if (mpi_reply->IOCStatus || mpi_reply->IOCLogInfo)
194 ioc_info(ioc, "\tiocstatus(0x%04x), loginfo(0x%08x)\n",
195 le16_to_cpu(mpi_reply->IOCStatus),
196 le32_to_cpu(mpi_reply->IOCLogInfo));
197
198 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
199 mpi_request->Function ==
200 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
201 Mpi2SCSIIOReply_t *scsi_reply =
202 (Mpi2SCSIIOReply_t *)mpi_reply;
203 struct _sas_device *sas_device = NULL;
204 struct _pcie_device *pcie_device = NULL;
205
206 sas_device = mpt3sas_get_sdev_by_handle(ioc,
207 le16_to_cpu(scsi_reply->DevHandle));
208 if (sas_device) {
209 ioc_warn(ioc, "\tsas_address(0x%016llx), phy(%d)\n",
210 (u64)sas_device->sas_address,
211 sas_device->phy);
212 ioc_warn(ioc, "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
213 (u64)sas_device->enclosure_logical_id,
214 sas_device->slot);
215 sas_device_put(sas_device);
216 }
217 if (!sas_device) {
218 pcie_device = mpt3sas_get_pdev_by_handle(ioc,
219 le16_to_cpu(scsi_reply->DevHandle));
220 if (pcie_device) {
221 ioc_warn(ioc, "\tWWID(0x%016llx), port(%d)\n",
222 (unsigned long long)pcie_device->wwid,
223 pcie_device->port_num);
224 if (pcie_device->enclosure_handle != 0)
225 ioc_warn(ioc, "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
226 (u64)pcie_device->enclosure_logical_id,
227 pcie_device->slot);
228 pcie_device_put(pcie_device);
229 }
230 }
231 if (scsi_reply->SCSIState || scsi_reply->SCSIStatus)
232 ioc_info(ioc, "\tscsi_state(0x%02x), scsi_status(0x%02x)\n",
233 scsi_reply->SCSIState,
234 scsi_reply->SCSIStatus);
235 }
236 }
237
238 /**
239 * mpt3sas_ctl_done - ctl module completion routine
240 * @ioc: per adapter object
241 * @smid: system request message index
242 * @msix_index: MSIX table index supplied by the OS
243 * @reply: reply message frame(lower 32bit addr)
244 * Context: none.
245 *
246 * The callback handler when using ioc->ctl_cb_idx.
247 *
248 * Return: 1 meaning mf should be freed from _base_interrupt
249 * 0 means the mf is freed from this function.
250 */
251 u8
mpt3sas_ctl_done(struct MPT3SAS_ADAPTER * ioc,u16 smid,u8 msix_index,u32 reply)252 mpt3sas_ctl_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
253 u32 reply)
254 {
255 MPI2DefaultReply_t *mpi_reply;
256 Mpi2SCSIIOReply_t *scsiio_reply;
257 Mpi26NVMeEncapsulatedErrorReply_t *nvme_error_reply;
258 const void *sense_data;
259 u32 sz;
260
261 if (ioc->ctl_cmds.status == MPT3_CMD_NOT_USED)
262 return 1;
263 if (ioc->ctl_cmds.smid != smid)
264 return 1;
265 ioc->ctl_cmds.status |= MPT3_CMD_COMPLETE;
266 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
267 if (mpi_reply) {
268 memcpy(ioc->ctl_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
269 ioc->ctl_cmds.status |= MPT3_CMD_REPLY_VALID;
270 /* get sense data */
271 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
272 mpi_reply->Function ==
273 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
274 scsiio_reply = (Mpi2SCSIIOReply_t *)mpi_reply;
275 if (scsiio_reply->SCSIState &
276 MPI2_SCSI_STATE_AUTOSENSE_VALID) {
277 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
278 le32_to_cpu(scsiio_reply->SenseCount));
279 sense_data = mpt3sas_base_get_sense_buffer(ioc,
280 smid);
281 memcpy(ioc->ctl_cmds.sense, sense_data, sz);
282 }
283 }
284 /*
285 * Get Error Response data for NVMe device. The ctl_cmds.sense
286 * buffer is used to store the Error Response data.
287 */
288 if (mpi_reply->Function == MPI2_FUNCTION_NVME_ENCAPSULATED) {
289 nvme_error_reply =
290 (Mpi26NVMeEncapsulatedErrorReply_t *)mpi_reply;
291 sz = min_t(u32, NVME_ERROR_RESPONSE_SIZE,
292 le16_to_cpu(nvme_error_reply->ErrorResponseCount));
293 sense_data = mpt3sas_base_get_sense_buffer(ioc, smid);
294 memcpy(ioc->ctl_cmds.sense, sense_data, sz);
295 }
296 }
297
298 _ctl_display_some_debug(ioc, smid, "ctl_done", mpi_reply);
299 ioc->ctl_cmds.status &= ~MPT3_CMD_PENDING;
300 complete(&ioc->ctl_cmds.done);
301 return 1;
302 }
303
304 /**
305 * _ctl_check_event_type - determines when an event needs logging
306 * @ioc: per adapter object
307 * @event: firmware event
308 *
309 * The bitmask in ioc->event_type[] indicates which events should be
310 * be saved in the driver event_log. This bitmask is set by application.
311 *
312 * Return: 1 when event should be captured, or zero means no match.
313 */
314 static int
_ctl_check_event_type(struct MPT3SAS_ADAPTER * ioc,u16 event)315 _ctl_check_event_type(struct MPT3SAS_ADAPTER *ioc, u16 event)
316 {
317 u16 i;
318 u32 desired_event;
319
320 if (event >= 128 || !event || !ioc->event_log)
321 return 0;
322
323 desired_event = (1 << (event % 32));
324 if (!desired_event)
325 desired_event = 1;
326 i = event / 32;
327 return desired_event & ioc->event_type[i];
328 }
329
330 /**
331 * mpt3sas_ctl_add_to_event_log - add event
332 * @ioc: per adapter object
333 * @mpi_reply: reply message frame
334 */
335 void
mpt3sas_ctl_add_to_event_log(struct MPT3SAS_ADAPTER * ioc,Mpi2EventNotificationReply_t * mpi_reply)336 mpt3sas_ctl_add_to_event_log(struct MPT3SAS_ADAPTER *ioc,
337 Mpi2EventNotificationReply_t *mpi_reply)
338 {
339 struct MPT3_IOCTL_EVENTS *event_log;
340 u16 event;
341 int i;
342 u32 sz, event_data_sz;
343 u8 send_aen = 0;
344
345 if (!ioc->event_log)
346 return;
347
348 event = le16_to_cpu(mpi_reply->Event);
349
350 if (_ctl_check_event_type(ioc, event)) {
351
352 /* insert entry into circular event_log */
353 i = ioc->event_context % MPT3SAS_CTL_EVENT_LOG_SIZE;
354 event_log = ioc->event_log;
355 event_log[i].event = event;
356 event_log[i].context = ioc->event_context++;
357
358 event_data_sz = le16_to_cpu(mpi_reply->EventDataLength)*4;
359 sz = min_t(u32, event_data_sz, MPT3_EVENT_DATA_SIZE);
360 memset(event_log[i].data, 0, MPT3_EVENT_DATA_SIZE);
361 memcpy(event_log[i].data, mpi_reply->EventData, sz);
362 send_aen = 1;
363 }
364
365 /* This aen_event_read_flag flag is set until the
366 * application has read the event log.
367 * For MPI2_EVENT_LOG_ENTRY_ADDED, we always notify.
368 */
369 if (event == MPI2_EVENT_LOG_ENTRY_ADDED ||
370 (send_aen && !ioc->aen_event_read_flag)) {
371 ioc->aen_event_read_flag = 1;
372 wake_up_interruptible(&ctl_poll_wait);
373 if (async_queue)
374 kill_fasync(&async_queue, SIGIO, POLL_IN);
375 }
376 }
377
378 /**
379 * mpt3sas_ctl_event_callback - firmware event handler (called at ISR time)
380 * @ioc: per adapter object
381 * @msix_index: MSIX table index supplied by the OS
382 * @reply: reply message frame(lower 32bit addr)
383 * Context: interrupt.
384 *
385 * This function merely adds a new work task into ioc->firmware_event_thread.
386 * The tasks are worked from _firmware_event_work in user context.
387 *
388 * Return: 1 meaning mf should be freed from _base_interrupt
389 * 0 means the mf is freed from this function.
390 */
391 u8
mpt3sas_ctl_event_callback(struct MPT3SAS_ADAPTER * ioc,u8 msix_index,u32 reply)392 mpt3sas_ctl_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index,
393 u32 reply)
394 {
395 Mpi2EventNotificationReply_t *mpi_reply;
396
397 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
398 if (mpi_reply)
399 mpt3sas_ctl_add_to_event_log(ioc, mpi_reply);
400 return 1;
401 }
402
403 /**
404 * _ctl_verify_adapter - validates ioc_number passed from application
405 * @ioc_number: ?
406 * @iocpp: The ioc pointer is returned in this.
407 * @mpi_version: will be MPI2_VERSION for mpt2ctl ioctl device &
408 * MPI25_VERSION | MPI26_VERSION for mpt3ctl ioctl device.
409 *
410 * Return: (-1) means error, else ioc_number.
411 */
412 static int
_ctl_verify_adapter(int ioc_number,struct MPT3SAS_ADAPTER ** iocpp,int mpi_version)413 _ctl_verify_adapter(int ioc_number, struct MPT3SAS_ADAPTER **iocpp,
414 int mpi_version)
415 {
416 struct MPT3SAS_ADAPTER *ioc;
417 int version = 0;
418 /* global ioc lock to protect controller on list operations */
419 spin_lock(&gioc_lock);
420 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
421 if (ioc->id != ioc_number)
422 continue;
423 /* Check whether this ioctl command is from right
424 * ioctl device or not, if not continue the search.
425 */
426 version = ioc->hba_mpi_version_belonged;
427 /* MPI25_VERSION and MPI26_VERSION uses same ioctl
428 * device.
429 */
430 if (mpi_version == (MPI25_VERSION | MPI26_VERSION)) {
431 if ((version == MPI25_VERSION) ||
432 (version == MPI26_VERSION))
433 goto out;
434 else
435 continue;
436 } else {
437 if (version != mpi_version)
438 continue;
439 }
440 out:
441 spin_unlock(&gioc_lock);
442 *iocpp = ioc;
443 return ioc_number;
444 }
445 spin_unlock(&gioc_lock);
446 *iocpp = NULL;
447 return -1;
448 }
449
450 /**
451 * mpt3sas_ctl_reset_handler - reset callback handler (for ctl)
452 * @ioc: per adapter object
453 *
454 * The handler for doing any required cleanup or initialization.
455 */
mpt3sas_ctl_pre_reset_handler(struct MPT3SAS_ADAPTER * ioc)456 void mpt3sas_ctl_pre_reset_handler(struct MPT3SAS_ADAPTER *ioc)
457 {
458 int i;
459 u8 issue_reset;
460
461 dtmprintk(ioc, ioc_info(ioc, "%s: MPT3_IOC_PRE_RESET\n", __func__));
462 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
463 if (!(ioc->diag_buffer_status[i] &
464 MPT3_DIAG_BUFFER_IS_REGISTERED))
465 continue;
466 if ((ioc->diag_buffer_status[i] &
467 MPT3_DIAG_BUFFER_IS_RELEASED))
468 continue;
469 mpt3sas_send_diag_release(ioc, i, &issue_reset);
470 }
471 }
472
473 /**
474 * mpt3sas_ctl_reset_handler - reset callback handler (for ctl)
475 * @ioc: per adapter object
476 *
477 * The handler for doing any required cleanup or initialization.
478 */
mpt3sas_ctl_after_reset_handler(struct MPT3SAS_ADAPTER * ioc)479 void mpt3sas_ctl_after_reset_handler(struct MPT3SAS_ADAPTER *ioc)
480 {
481 dtmprintk(ioc, ioc_info(ioc, "%s: MPT3_IOC_AFTER_RESET\n", __func__));
482 if (ioc->ctl_cmds.status & MPT3_CMD_PENDING) {
483 ioc->ctl_cmds.status |= MPT3_CMD_RESET;
484 mpt3sas_base_free_smid(ioc, ioc->ctl_cmds.smid);
485 complete(&ioc->ctl_cmds.done);
486 }
487 }
488
489 /**
490 * mpt3sas_ctl_reset_handler - reset callback handler (for ctl)
491 * @ioc: per adapter object
492 *
493 * The handler for doing any required cleanup or initialization.
494 */
mpt3sas_ctl_reset_done_handler(struct MPT3SAS_ADAPTER * ioc)495 void mpt3sas_ctl_reset_done_handler(struct MPT3SAS_ADAPTER *ioc)
496 {
497 int i;
498
499 dtmprintk(ioc, ioc_info(ioc, "%s: MPT3_IOC_DONE_RESET\n", __func__));
500
501 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
502 if (!(ioc->diag_buffer_status[i] &
503 MPT3_DIAG_BUFFER_IS_REGISTERED))
504 continue;
505 if ((ioc->diag_buffer_status[i] &
506 MPT3_DIAG_BUFFER_IS_RELEASED))
507 continue;
508 ioc->diag_buffer_status[i] |=
509 MPT3_DIAG_BUFFER_IS_DIAG_RESET;
510 }
511 }
512
513 /**
514 * _ctl_fasync -
515 * @fd: ?
516 * @filep: ?
517 * @mode: ?
518 *
519 * Called when application request fasyn callback handler.
520 */
521 static int
_ctl_fasync(int fd,struct file * filep,int mode)522 _ctl_fasync(int fd, struct file *filep, int mode)
523 {
524 return fasync_helper(fd, filep, mode, &async_queue);
525 }
526
527 /**
528 * _ctl_poll -
529 * @filep: ?
530 * @wait: ?
531 *
532 */
533 static __poll_t
_ctl_poll(struct file * filep,poll_table * wait)534 _ctl_poll(struct file *filep, poll_table *wait)
535 {
536 struct MPT3SAS_ADAPTER *ioc;
537
538 poll_wait(filep, &ctl_poll_wait, wait);
539
540 /* global ioc lock to protect controller on list operations */
541 spin_lock(&gioc_lock);
542 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
543 if (ioc->aen_event_read_flag) {
544 spin_unlock(&gioc_lock);
545 return EPOLLIN | EPOLLRDNORM;
546 }
547 }
548 spin_unlock(&gioc_lock);
549 return 0;
550 }
551
552 /**
553 * _ctl_set_task_mid - assign an active smid to tm request
554 * @ioc: per adapter object
555 * @karg: (struct mpt3_ioctl_command)
556 * @tm_request: pointer to mf from user space
557 *
558 * Return: 0 when an smid if found, else fail.
559 * during failure, the reply frame is filled.
560 */
561 static int
_ctl_set_task_mid(struct MPT3SAS_ADAPTER * ioc,struct mpt3_ioctl_command * karg,Mpi2SCSITaskManagementRequest_t * tm_request)562 _ctl_set_task_mid(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command *karg,
563 Mpi2SCSITaskManagementRequest_t *tm_request)
564 {
565 u8 found = 0;
566 u16 smid;
567 u16 handle;
568 struct scsi_cmnd *scmd;
569 struct MPT3SAS_DEVICE *priv_data;
570 Mpi2SCSITaskManagementReply_t *tm_reply;
571 u32 sz;
572 u32 lun;
573 char *desc = NULL;
574
575 if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
576 desc = "abort_task";
577 else if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK)
578 desc = "query_task";
579 else
580 return 0;
581
582 lun = scsilun_to_int((struct scsi_lun *)tm_request->LUN);
583
584 handle = le16_to_cpu(tm_request->DevHandle);
585 for (smid = ioc->scsiio_depth; smid && !found; smid--) {
586 struct scsiio_tracker *st;
587
588 scmd = mpt3sas_scsih_scsi_lookup_get(ioc, smid);
589 if (!scmd)
590 continue;
591 if (lun != scmd->device->lun)
592 continue;
593 priv_data = scmd->device->hostdata;
594 if (priv_data->sas_target == NULL)
595 continue;
596 if (priv_data->sas_target->handle != handle)
597 continue;
598 st = scsi_cmd_priv(scmd);
599
600 /*
601 * If the given TaskMID from the user space is zero, then the
602 * first outstanding smid will be picked up. Otherwise,
603 * targeted smid will be the one.
604 */
605 if (!tm_request->TaskMID || tm_request->TaskMID == st->smid) {
606 tm_request->TaskMID = cpu_to_le16(st->smid);
607 found = 1;
608 }
609 }
610
611 if (!found) {
612 dctlprintk(ioc,
613 ioc_info(ioc, "%s: handle(0x%04x), lun(%d), no active mid!!\n",
614 desc, le16_to_cpu(tm_request->DevHandle),
615 lun));
616 tm_reply = ioc->ctl_cmds.reply;
617 tm_reply->DevHandle = tm_request->DevHandle;
618 tm_reply->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
619 tm_reply->TaskType = tm_request->TaskType;
620 tm_reply->MsgLength = sizeof(Mpi2SCSITaskManagementReply_t)/4;
621 tm_reply->VP_ID = tm_request->VP_ID;
622 tm_reply->VF_ID = tm_request->VF_ID;
623 sz = min_t(u32, karg->max_reply_bytes, ioc->reply_sz);
624 if (copy_to_user(karg->reply_frame_buf_ptr, ioc->ctl_cmds.reply,
625 sz))
626 pr_err("failure at %s:%d/%s()!\n", __FILE__,
627 __LINE__, __func__);
628 return 1;
629 }
630
631 dctlprintk(ioc,
632 ioc_info(ioc, "%s: handle(0x%04x), lun(%d), task_mid(%d)\n",
633 desc, le16_to_cpu(tm_request->DevHandle), lun,
634 le16_to_cpu(tm_request->TaskMID)));
635 return 0;
636 }
637
638 /**
639 * _ctl_do_mpt_command - main handler for MPT3COMMAND opcode
640 * @ioc: per adapter object
641 * @karg: (struct mpt3_ioctl_command)
642 * @mf: pointer to mf in user space
643 */
644 static long
_ctl_do_mpt_command(struct MPT3SAS_ADAPTER * ioc,struct mpt3_ioctl_command karg,void __user * mf)645 _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
646 void __user *mf)
647 {
648 MPI2RequestHeader_t *mpi_request = NULL, *request;
649 MPI2DefaultReply_t *mpi_reply;
650 Mpi26NVMeEncapsulatedRequest_t *nvme_encap_request = NULL;
651 struct _pcie_device *pcie_device = NULL;
652 u16 smid;
653 u8 timeout;
654 u8 issue_reset;
655 u32 sz, sz_arg;
656 void *psge;
657 void *data_out = NULL;
658 dma_addr_t data_out_dma = 0;
659 size_t data_out_sz = 0;
660 void *data_in = NULL;
661 dma_addr_t data_in_dma = 0;
662 size_t data_in_sz = 0;
663 long ret;
664 u16 device_handle = MPT3SAS_INVALID_DEVICE_HANDLE;
665
666 issue_reset = 0;
667
668 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
669 ioc_err(ioc, "%s: ctl_cmd in use\n", __func__);
670 ret = -EAGAIN;
671 goto out;
672 }
673
674 ret = mpt3sas_wait_for_ioc(ioc, IOC_OPERATIONAL_WAIT_COUNT);
675 if (ret)
676 goto out;
677
678 mpi_request = kzalloc(ioc->request_sz, GFP_KERNEL);
679 if (!mpi_request) {
680 ioc_err(ioc, "%s: failed obtaining a memory for mpi_request\n",
681 __func__);
682 ret = -ENOMEM;
683 goto out;
684 }
685
686 /* Check for overflow and wraparound */
687 if (karg.data_sge_offset * 4 > ioc->request_sz ||
688 karg.data_sge_offset > (UINT_MAX / 4)) {
689 ret = -EINVAL;
690 goto out;
691 }
692
693 /* copy in request message frame from user */
694 if (copy_from_user(mpi_request, mf, karg.data_sge_offset*4)) {
695 pr_err("failure at %s:%d/%s()!\n", __FILE__, __LINE__,
696 __func__);
697 ret = -EFAULT;
698 goto out;
699 }
700
701 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
702 smid = mpt3sas_base_get_smid_hpr(ioc, ioc->ctl_cb_idx);
703 if (!smid) {
704 ioc_err(ioc, "%s: failed obtaining a smid\n", __func__);
705 ret = -EAGAIN;
706 goto out;
707 }
708 } else {
709 /* Use first reserved smid for passthrough ioctls */
710 smid = ioc->scsiio_depth - INTERNAL_SCSIIO_CMDS_COUNT + 1;
711 }
712
713 ret = 0;
714 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
715 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
716 request = mpt3sas_base_get_msg_frame(ioc, smid);
717 memset(request, 0, ioc->request_sz);
718 memcpy(request, mpi_request, karg.data_sge_offset*4);
719 ioc->ctl_cmds.smid = smid;
720 data_out_sz = karg.data_out_size;
721 data_in_sz = karg.data_in_size;
722
723 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
724 mpi_request->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
725 mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT ||
726 mpi_request->Function == MPI2_FUNCTION_SATA_PASSTHROUGH ||
727 mpi_request->Function == MPI2_FUNCTION_NVME_ENCAPSULATED) {
728
729 device_handle = le16_to_cpu(mpi_request->FunctionDependent1);
730 if (!device_handle || (device_handle >
731 ioc->facts.MaxDevHandle)) {
732 ret = -EINVAL;
733 mpt3sas_base_free_smid(ioc, smid);
734 goto out;
735 }
736 }
737
738 /* obtain dma-able memory for data transfer */
739 if (data_out_sz) /* WRITE */ {
740 data_out = dma_alloc_coherent(&ioc->pdev->dev, data_out_sz,
741 &data_out_dma, GFP_KERNEL);
742 if (!data_out) {
743 pr_err("failure at %s:%d/%s()!\n", __FILE__,
744 __LINE__, __func__);
745 ret = -ENOMEM;
746 mpt3sas_base_free_smid(ioc, smid);
747 goto out;
748 }
749 if (copy_from_user(data_out, karg.data_out_buf_ptr,
750 data_out_sz)) {
751 pr_err("failure at %s:%d/%s()!\n", __FILE__,
752 __LINE__, __func__);
753 ret = -EFAULT;
754 mpt3sas_base_free_smid(ioc, smid);
755 goto out;
756 }
757 }
758
759 if (data_in_sz) /* READ */ {
760 data_in = dma_alloc_coherent(&ioc->pdev->dev, data_in_sz,
761 &data_in_dma, GFP_KERNEL);
762 if (!data_in) {
763 pr_err("failure at %s:%d/%s()!\n", __FILE__,
764 __LINE__, __func__);
765 ret = -ENOMEM;
766 mpt3sas_base_free_smid(ioc, smid);
767 goto out;
768 }
769 }
770
771 psge = (void *)request + (karg.data_sge_offset*4);
772
773 /* send command to firmware */
774 _ctl_display_some_debug(ioc, smid, "ctl_request", NULL);
775
776 init_completion(&ioc->ctl_cmds.done);
777 switch (mpi_request->Function) {
778 case MPI2_FUNCTION_NVME_ENCAPSULATED:
779 {
780 nvme_encap_request = (Mpi26NVMeEncapsulatedRequest_t *)request;
781 if (!ioc->pcie_sg_lookup) {
782 dtmprintk(ioc, ioc_info(ioc,
783 "HBA doesn't support NVMe. Rejecting NVMe Encapsulated request.\n"
784 ));
785
786 if (ioc->logging_level & MPT_DEBUG_TM)
787 _debug_dump_mf(nvme_encap_request,
788 ioc->request_sz/4);
789 mpt3sas_base_free_smid(ioc, smid);
790 ret = -EINVAL;
791 goto out;
792 }
793 /*
794 * Get the Physical Address of the sense buffer.
795 * Use Error Response buffer address field to hold the sense
796 * buffer address.
797 * Clear the internal sense buffer, which will potentially hold
798 * the Completion Queue Entry on return, or 0 if no Entry.
799 * Build the PRPs and set direction bits.
800 * Send the request.
801 */
802 nvme_encap_request->ErrorResponseBaseAddress =
803 cpu_to_le64(ioc->sense_dma & 0xFFFFFFFF00000000UL);
804 nvme_encap_request->ErrorResponseBaseAddress |=
805 cpu_to_le64(le32_to_cpu(
806 mpt3sas_base_get_sense_buffer_dma(ioc, smid)));
807 nvme_encap_request->ErrorResponseAllocationLength =
808 cpu_to_le16(NVME_ERROR_RESPONSE_SIZE);
809 memset(ioc->ctl_cmds.sense, 0, NVME_ERROR_RESPONSE_SIZE);
810 ioc->build_nvme_prp(ioc, smid, nvme_encap_request,
811 data_out_dma, data_out_sz, data_in_dma, data_in_sz);
812 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
813 dtmprintk(ioc,
814 ioc_info(ioc, "handle(0x%04x): ioctl failed due to device removal in progress\n",
815 device_handle));
816 mpt3sas_base_free_smid(ioc, smid);
817 ret = -EINVAL;
818 goto out;
819 }
820 mpt3sas_base_put_smid_nvme_encap(ioc, smid);
821 break;
822 }
823 case MPI2_FUNCTION_SCSI_IO_REQUEST:
824 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
825 {
826 Mpi2SCSIIORequest_t *scsiio_request =
827 (Mpi2SCSIIORequest_t *)request;
828 scsiio_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
829 scsiio_request->SenseBufferLowAddress =
830 mpt3sas_base_get_sense_buffer_dma(ioc, smid);
831 memset(ioc->ctl_cmds.sense, 0, SCSI_SENSE_BUFFERSIZE);
832 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
833 dtmprintk(ioc,
834 ioc_info(ioc, "handle(0x%04x) :ioctl failed due to device removal in progress\n",
835 device_handle));
836 mpt3sas_base_free_smid(ioc, smid);
837 ret = -EINVAL;
838 goto out;
839 }
840 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
841 data_in_dma, data_in_sz);
842 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)
843 ioc->put_smid_scsi_io(ioc, smid, device_handle);
844 else
845 ioc->put_smid_default(ioc, smid);
846 break;
847 }
848 case MPI2_FUNCTION_SCSI_TASK_MGMT:
849 {
850 Mpi2SCSITaskManagementRequest_t *tm_request =
851 (Mpi2SCSITaskManagementRequest_t *)request;
852
853 dtmprintk(ioc,
854 ioc_info(ioc, "TASK_MGMT: handle(0x%04x), task_type(0x%02x)\n",
855 le16_to_cpu(tm_request->DevHandle),
856 tm_request->TaskType));
857 ioc->got_task_abort_from_ioctl = 1;
858 if (tm_request->TaskType ==
859 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK ||
860 tm_request->TaskType ==
861 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) {
862 if (_ctl_set_task_mid(ioc, &karg, tm_request)) {
863 mpt3sas_base_free_smid(ioc, smid);
864 ioc->got_task_abort_from_ioctl = 0;
865 goto out;
866 }
867 }
868 ioc->got_task_abort_from_ioctl = 0;
869
870 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
871 dtmprintk(ioc,
872 ioc_info(ioc, "handle(0x%04x) :ioctl failed due to device removal in progress\n",
873 device_handle));
874 mpt3sas_base_free_smid(ioc, smid);
875 ret = -EINVAL;
876 goto out;
877 }
878 mpt3sas_scsih_set_tm_flag(ioc, le16_to_cpu(
879 tm_request->DevHandle));
880 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
881 data_in_dma, data_in_sz);
882 ioc->put_smid_hi_priority(ioc, smid, 0);
883 break;
884 }
885 case MPI2_FUNCTION_SMP_PASSTHROUGH:
886 {
887 Mpi2SmpPassthroughRequest_t *smp_request =
888 (Mpi2SmpPassthroughRequest_t *)mpi_request;
889 u8 *data;
890
891 /* ioc determines which port to use */
892 smp_request->PhysicalPort = 0xFF;
893 if (smp_request->PassthroughFlags &
894 MPI2_SMP_PT_REQ_PT_FLAGS_IMMEDIATE)
895 data = (u8 *)&smp_request->SGL;
896 else {
897 if (unlikely(data_out == NULL)) {
898 pr_err("failure at %s:%d/%s()!\n",
899 __FILE__, __LINE__, __func__);
900 mpt3sas_base_free_smid(ioc, smid);
901 ret = -EINVAL;
902 goto out;
903 }
904 data = data_out;
905 }
906
907 if (data[1] == 0x91 && (data[10] == 1 || data[10] == 2)) {
908 ioc->ioc_link_reset_in_progress = 1;
909 ioc->ignore_loginfos = 1;
910 }
911 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
912 data_in_sz);
913 ioc->put_smid_default(ioc, smid);
914 break;
915 }
916 case MPI2_FUNCTION_SATA_PASSTHROUGH:
917 {
918 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
919 dtmprintk(ioc,
920 ioc_info(ioc, "handle(0x%04x) :ioctl failed due to device removal in progress\n",
921 device_handle));
922 mpt3sas_base_free_smid(ioc, smid);
923 ret = -EINVAL;
924 goto out;
925 }
926 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
927 data_in_sz);
928 ioc->put_smid_default(ioc, smid);
929 break;
930 }
931 case MPI2_FUNCTION_FW_DOWNLOAD:
932 case MPI2_FUNCTION_FW_UPLOAD:
933 {
934 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
935 data_in_sz);
936 ioc->put_smid_default(ioc, smid);
937 break;
938 }
939 case MPI2_FUNCTION_TOOLBOX:
940 {
941 Mpi2ToolboxCleanRequest_t *toolbox_request =
942 (Mpi2ToolboxCleanRequest_t *)mpi_request;
943
944 if ((toolbox_request->Tool == MPI2_TOOLBOX_DIAGNOSTIC_CLI_TOOL)
945 || (toolbox_request->Tool ==
946 MPI26_TOOLBOX_BACKEND_PCIE_LANE_MARGIN))
947 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
948 data_in_dma, data_in_sz);
949 else if (toolbox_request->Tool ==
950 MPI2_TOOLBOX_MEMORY_MOVE_TOOL) {
951 Mpi2ToolboxMemMoveRequest_t *mem_move_request =
952 (Mpi2ToolboxMemMoveRequest_t *)request;
953 Mpi2SGESimple64_t tmp, *src = NULL, *dst = NULL;
954
955 ioc->build_sg_mpi(ioc, psge, data_out_dma,
956 data_out_sz, data_in_dma, data_in_sz);
957 if (data_out_sz && !data_in_sz) {
958 dst =
959 (Mpi2SGESimple64_t *)&mem_move_request->SGL;
960 src = (void *)dst + ioc->sge_size;
961
962 memcpy(&tmp, src, ioc->sge_size);
963 memcpy(src, dst, ioc->sge_size);
964 memcpy(dst, &tmp, ioc->sge_size);
965 }
966 if (ioc->logging_level & MPT_DEBUG_TM) {
967 ioc_info(ioc,
968 "Mpi2ToolboxMemMoveRequest_t request msg\n");
969 _debug_dump_mf(mem_move_request,
970 ioc->request_sz/4);
971 }
972 } else
973 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
974 data_in_dma, data_in_sz);
975 ioc->put_smid_default(ioc, smid);
976 break;
977 }
978 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
979 {
980 Mpi2SasIoUnitControlRequest_t *sasiounit_request =
981 (Mpi2SasIoUnitControlRequest_t *)mpi_request;
982
983 if (sasiounit_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET
984 || sasiounit_request->Operation ==
985 MPI2_SAS_OP_PHY_LINK_RESET) {
986 ioc->ioc_link_reset_in_progress = 1;
987 ioc->ignore_loginfos = 1;
988 }
989 /* drop to default case for posting the request */
990 }
991 /* fall through */
992 default:
993 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
994 data_in_dma, data_in_sz);
995 ioc->put_smid_default(ioc, smid);
996 break;
997 }
998
999 if (karg.timeout < MPT3_IOCTL_DEFAULT_TIMEOUT)
1000 timeout = MPT3_IOCTL_DEFAULT_TIMEOUT;
1001 else
1002 timeout = karg.timeout;
1003 wait_for_completion_timeout(&ioc->ctl_cmds.done, timeout*HZ);
1004 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
1005 Mpi2SCSITaskManagementRequest_t *tm_request =
1006 (Mpi2SCSITaskManagementRequest_t *)mpi_request;
1007 mpt3sas_scsih_clear_tm_flag(ioc, le16_to_cpu(
1008 tm_request->DevHandle));
1009 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
1010 } else if ((mpi_request->Function == MPI2_FUNCTION_SMP_PASSTHROUGH ||
1011 mpi_request->Function == MPI2_FUNCTION_SAS_IO_UNIT_CONTROL) &&
1012 ioc->ioc_link_reset_in_progress) {
1013 ioc->ioc_link_reset_in_progress = 0;
1014 ioc->ignore_loginfos = 0;
1015 }
1016 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1017 issue_reset =
1018 mpt3sas_base_check_cmd_timeout(ioc,
1019 ioc->ctl_cmds.status, mpi_request,
1020 karg.data_sge_offset);
1021 goto issue_host_reset;
1022 }
1023
1024 mpi_reply = ioc->ctl_cmds.reply;
1025
1026 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_TASK_MGMT &&
1027 (ioc->logging_level & MPT_DEBUG_TM)) {
1028 Mpi2SCSITaskManagementReply_t *tm_reply =
1029 (Mpi2SCSITaskManagementReply_t *)mpi_reply;
1030
1031 ioc_info(ioc, "TASK_MGMT: IOCStatus(0x%04x), IOCLogInfo(0x%08x), TerminationCount(0x%08x)\n",
1032 le16_to_cpu(tm_reply->IOCStatus),
1033 le32_to_cpu(tm_reply->IOCLogInfo),
1034 le32_to_cpu(tm_reply->TerminationCount));
1035 }
1036
1037 /* copy out xdata to user */
1038 if (data_in_sz) {
1039 if (copy_to_user(karg.data_in_buf_ptr, data_in,
1040 data_in_sz)) {
1041 pr_err("failure at %s:%d/%s()!\n", __FILE__,
1042 __LINE__, __func__);
1043 ret = -ENODATA;
1044 goto out;
1045 }
1046 }
1047
1048 /* copy out reply message frame to user */
1049 if (karg.max_reply_bytes) {
1050 sz = min_t(u32, karg.max_reply_bytes, ioc->reply_sz);
1051 if (copy_to_user(karg.reply_frame_buf_ptr, ioc->ctl_cmds.reply,
1052 sz)) {
1053 pr_err("failure at %s:%d/%s()!\n", __FILE__,
1054 __LINE__, __func__);
1055 ret = -ENODATA;
1056 goto out;
1057 }
1058 }
1059
1060 /* copy out sense/NVMe Error Response to user */
1061 if (karg.max_sense_bytes && (mpi_request->Function ==
1062 MPI2_FUNCTION_SCSI_IO_REQUEST || mpi_request->Function ==
1063 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH || mpi_request->Function ==
1064 MPI2_FUNCTION_NVME_ENCAPSULATED)) {
1065 if (karg.sense_data_ptr == NULL) {
1066 ioc_info(ioc, "Response buffer provided by application is NULL; Response data will not be returned\n");
1067 goto out;
1068 }
1069 sz_arg = (mpi_request->Function ==
1070 MPI2_FUNCTION_NVME_ENCAPSULATED) ? NVME_ERROR_RESPONSE_SIZE :
1071 SCSI_SENSE_BUFFERSIZE;
1072 sz = min_t(u32, karg.max_sense_bytes, sz_arg);
1073 if (copy_to_user(karg.sense_data_ptr, ioc->ctl_cmds.sense,
1074 sz)) {
1075 pr_err("failure at %s:%d/%s()!\n", __FILE__,
1076 __LINE__, __func__);
1077 ret = -ENODATA;
1078 goto out;
1079 }
1080 }
1081
1082 issue_host_reset:
1083 if (issue_reset) {
1084 ret = -ENODATA;
1085 if ((mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
1086 mpi_request->Function ==
1087 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
1088 mpi_request->Function == MPI2_FUNCTION_SATA_PASSTHROUGH)) {
1089 ioc_info(ioc, "issue target reset: handle = (0x%04x)\n",
1090 le16_to_cpu(mpi_request->FunctionDependent1));
1091 mpt3sas_halt_firmware(ioc);
1092 pcie_device = mpt3sas_get_pdev_by_handle(ioc,
1093 le16_to_cpu(mpi_request->FunctionDependent1));
1094 if (pcie_device && (!ioc->tm_custom_handling) &&
1095 (!(mpt3sas_scsih_is_pcie_scsi_device(
1096 pcie_device->device_info))))
1097 mpt3sas_scsih_issue_locked_tm(ioc,
1098 le16_to_cpu(mpi_request->FunctionDependent1),
1099 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
1100 0, pcie_device->reset_timeout,
1101 MPI26_SCSITASKMGMT_MSGFLAGS_PROTOCOL_LVL_RST_PCIE);
1102 else
1103 mpt3sas_scsih_issue_locked_tm(ioc,
1104 le16_to_cpu(mpi_request->FunctionDependent1),
1105 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
1106 0, 30, MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET);
1107 } else
1108 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1109 }
1110
1111 out:
1112 if (pcie_device)
1113 pcie_device_put(pcie_device);
1114
1115 /* free memory associated with sg buffers */
1116 if (data_in)
1117 dma_free_coherent(&ioc->pdev->dev, data_in_sz, data_in,
1118 data_in_dma);
1119
1120 if (data_out)
1121 dma_free_coherent(&ioc->pdev->dev, data_out_sz, data_out,
1122 data_out_dma);
1123
1124 kfree(mpi_request);
1125 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1126 return ret;
1127 }
1128
1129 /**
1130 * _ctl_getiocinfo - main handler for MPT3IOCINFO opcode
1131 * @ioc: per adapter object
1132 * @arg: user space buffer containing ioctl content
1133 */
1134 static long
_ctl_getiocinfo(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1135 _ctl_getiocinfo(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1136 {
1137 struct mpt3_ioctl_iocinfo karg;
1138
1139 dctlprintk(ioc, ioc_info(ioc, "%s: enter\n",
1140 __func__));
1141
1142 memset(&karg, 0 , sizeof(karg));
1143 if (ioc->pfacts)
1144 karg.port_number = ioc->pfacts[0].PortNumber;
1145 karg.hw_rev = ioc->pdev->revision;
1146 karg.pci_id = ioc->pdev->device;
1147 karg.subsystem_device = ioc->pdev->subsystem_device;
1148 karg.subsystem_vendor = ioc->pdev->subsystem_vendor;
1149 karg.pci_information.u.bits.bus = ioc->pdev->bus->number;
1150 karg.pci_information.u.bits.device = PCI_SLOT(ioc->pdev->devfn);
1151 karg.pci_information.u.bits.function = PCI_FUNC(ioc->pdev->devfn);
1152 karg.pci_information.segment_id = pci_domain_nr(ioc->pdev->bus);
1153 karg.firmware_version = ioc->facts.FWVersion.Word;
1154 strcpy(karg.driver_version, ioc->driver_name);
1155 strcat(karg.driver_version, "-");
1156 switch (ioc->hba_mpi_version_belonged) {
1157 case MPI2_VERSION:
1158 if (ioc->is_warpdrive)
1159 karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2_SSS6200;
1160 else
1161 karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2;
1162 strcat(karg.driver_version, MPT2SAS_DRIVER_VERSION);
1163 break;
1164 case MPI25_VERSION:
1165 case MPI26_VERSION:
1166 if (ioc->is_gen35_ioc)
1167 karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS35;
1168 else
1169 karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS3;
1170 strcat(karg.driver_version, MPT3SAS_DRIVER_VERSION);
1171 break;
1172 }
1173 karg.bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
1174
1175 if (copy_to_user(arg, &karg, sizeof(karg))) {
1176 pr_err("failure at %s:%d/%s()!\n",
1177 __FILE__, __LINE__, __func__);
1178 return -EFAULT;
1179 }
1180 return 0;
1181 }
1182
1183 /**
1184 * _ctl_eventquery - main handler for MPT3EVENTQUERY opcode
1185 * @ioc: per adapter object
1186 * @arg: user space buffer containing ioctl content
1187 */
1188 static long
_ctl_eventquery(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1189 _ctl_eventquery(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1190 {
1191 struct mpt3_ioctl_eventquery karg;
1192
1193 if (copy_from_user(&karg, arg, sizeof(karg))) {
1194 pr_err("failure at %s:%d/%s()!\n",
1195 __FILE__, __LINE__, __func__);
1196 return -EFAULT;
1197 }
1198
1199 dctlprintk(ioc, ioc_info(ioc, "%s: enter\n",
1200 __func__));
1201
1202 karg.event_entries = MPT3SAS_CTL_EVENT_LOG_SIZE;
1203 memcpy(karg.event_types, ioc->event_type,
1204 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1205
1206 if (copy_to_user(arg, &karg, sizeof(karg))) {
1207 pr_err("failure at %s:%d/%s()!\n",
1208 __FILE__, __LINE__, __func__);
1209 return -EFAULT;
1210 }
1211 return 0;
1212 }
1213
1214 /**
1215 * _ctl_eventenable - main handler for MPT3EVENTENABLE opcode
1216 * @ioc: per adapter object
1217 * @arg: user space buffer containing ioctl content
1218 */
1219 static long
_ctl_eventenable(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1220 _ctl_eventenable(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1221 {
1222 struct mpt3_ioctl_eventenable karg;
1223
1224 if (copy_from_user(&karg, arg, sizeof(karg))) {
1225 pr_err("failure at %s:%d/%s()!\n",
1226 __FILE__, __LINE__, __func__);
1227 return -EFAULT;
1228 }
1229
1230 dctlprintk(ioc, ioc_info(ioc, "%s: enter\n",
1231 __func__));
1232
1233 memcpy(ioc->event_type, karg.event_types,
1234 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1235 mpt3sas_base_validate_event_type(ioc, ioc->event_type);
1236
1237 if (ioc->event_log)
1238 return 0;
1239 /* initialize event_log */
1240 ioc->event_context = 0;
1241 ioc->aen_event_read_flag = 0;
1242 ioc->event_log = kcalloc(MPT3SAS_CTL_EVENT_LOG_SIZE,
1243 sizeof(struct MPT3_IOCTL_EVENTS), GFP_KERNEL);
1244 if (!ioc->event_log) {
1245 pr_err("failure at %s:%d/%s()!\n",
1246 __FILE__, __LINE__, __func__);
1247 return -ENOMEM;
1248 }
1249 return 0;
1250 }
1251
1252 /**
1253 * _ctl_eventreport - main handler for MPT3EVENTREPORT opcode
1254 * @ioc: per adapter object
1255 * @arg: user space buffer containing ioctl content
1256 */
1257 static long
_ctl_eventreport(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1258 _ctl_eventreport(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1259 {
1260 struct mpt3_ioctl_eventreport karg;
1261 u32 number_bytes, max_events, max;
1262 struct mpt3_ioctl_eventreport __user *uarg = arg;
1263
1264 if (copy_from_user(&karg, arg, sizeof(karg))) {
1265 pr_err("failure at %s:%d/%s()!\n",
1266 __FILE__, __LINE__, __func__);
1267 return -EFAULT;
1268 }
1269
1270 dctlprintk(ioc, ioc_info(ioc, "%s: enter\n",
1271 __func__));
1272
1273 number_bytes = karg.hdr.max_data_size -
1274 sizeof(struct mpt3_ioctl_header);
1275 max_events = number_bytes/sizeof(struct MPT3_IOCTL_EVENTS);
1276 max = min_t(u32, MPT3SAS_CTL_EVENT_LOG_SIZE, max_events);
1277
1278 /* If fewer than 1 event is requested, there must have
1279 * been some type of error.
1280 */
1281 if (!max || !ioc->event_log)
1282 return -ENODATA;
1283
1284 number_bytes = max * sizeof(struct MPT3_IOCTL_EVENTS);
1285 if (copy_to_user(uarg->event_data, ioc->event_log, number_bytes)) {
1286 pr_err("failure at %s:%d/%s()!\n",
1287 __FILE__, __LINE__, __func__);
1288 return -EFAULT;
1289 }
1290
1291 /* reset flag so SIGIO can restart */
1292 ioc->aen_event_read_flag = 0;
1293 return 0;
1294 }
1295
1296 /**
1297 * _ctl_do_reset - main handler for MPT3HARDRESET opcode
1298 * @ioc: per adapter object
1299 * @arg: user space buffer containing ioctl content
1300 */
1301 static long
_ctl_do_reset(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1302 _ctl_do_reset(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1303 {
1304 struct mpt3_ioctl_diag_reset karg;
1305 int retval;
1306
1307 if (copy_from_user(&karg, arg, sizeof(karg))) {
1308 pr_err("failure at %s:%d/%s()!\n",
1309 __FILE__, __LINE__, __func__);
1310 return -EFAULT;
1311 }
1312
1313 if (ioc->shost_recovery || ioc->pci_error_recovery ||
1314 ioc->is_driver_loading)
1315 return -EAGAIN;
1316
1317 dctlprintk(ioc, ioc_info(ioc, "%s: enter\n",
1318 __func__));
1319
1320 retval = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1321 ioc_info(ioc, "host reset: %s\n", ((!retval) ? "SUCCESS" : "FAILED"));
1322 return 0;
1323 }
1324
1325 /**
1326 * _ctl_btdh_search_sas_device - searching for sas device
1327 * @ioc: per adapter object
1328 * @btdh: btdh ioctl payload
1329 */
1330 static int
_ctl_btdh_search_sas_device(struct MPT3SAS_ADAPTER * ioc,struct mpt3_ioctl_btdh_mapping * btdh)1331 _ctl_btdh_search_sas_device(struct MPT3SAS_ADAPTER *ioc,
1332 struct mpt3_ioctl_btdh_mapping *btdh)
1333 {
1334 struct _sas_device *sas_device;
1335 unsigned long flags;
1336 int rc = 0;
1337
1338 if (list_empty(&ioc->sas_device_list))
1339 return rc;
1340
1341 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1342 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
1343 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1344 btdh->handle == sas_device->handle) {
1345 btdh->bus = sas_device->channel;
1346 btdh->id = sas_device->id;
1347 rc = 1;
1348 goto out;
1349 } else if (btdh->bus == sas_device->channel && btdh->id ==
1350 sas_device->id && btdh->handle == 0xFFFF) {
1351 btdh->handle = sas_device->handle;
1352 rc = 1;
1353 goto out;
1354 }
1355 }
1356 out:
1357 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1358 return rc;
1359 }
1360
1361 /**
1362 * _ctl_btdh_search_pcie_device - searching for pcie device
1363 * @ioc: per adapter object
1364 * @btdh: btdh ioctl payload
1365 */
1366 static int
_ctl_btdh_search_pcie_device(struct MPT3SAS_ADAPTER * ioc,struct mpt3_ioctl_btdh_mapping * btdh)1367 _ctl_btdh_search_pcie_device(struct MPT3SAS_ADAPTER *ioc,
1368 struct mpt3_ioctl_btdh_mapping *btdh)
1369 {
1370 struct _pcie_device *pcie_device;
1371 unsigned long flags;
1372 int rc = 0;
1373
1374 if (list_empty(&ioc->pcie_device_list))
1375 return rc;
1376
1377 spin_lock_irqsave(&ioc->pcie_device_lock, flags);
1378 list_for_each_entry(pcie_device, &ioc->pcie_device_list, list) {
1379 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1380 btdh->handle == pcie_device->handle) {
1381 btdh->bus = pcie_device->channel;
1382 btdh->id = pcie_device->id;
1383 rc = 1;
1384 goto out;
1385 } else if (btdh->bus == pcie_device->channel && btdh->id ==
1386 pcie_device->id && btdh->handle == 0xFFFF) {
1387 btdh->handle = pcie_device->handle;
1388 rc = 1;
1389 goto out;
1390 }
1391 }
1392 out:
1393 spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
1394 return rc;
1395 }
1396
1397 /**
1398 * _ctl_btdh_search_raid_device - searching for raid device
1399 * @ioc: per adapter object
1400 * @btdh: btdh ioctl payload
1401 */
1402 static int
_ctl_btdh_search_raid_device(struct MPT3SAS_ADAPTER * ioc,struct mpt3_ioctl_btdh_mapping * btdh)1403 _ctl_btdh_search_raid_device(struct MPT3SAS_ADAPTER *ioc,
1404 struct mpt3_ioctl_btdh_mapping *btdh)
1405 {
1406 struct _raid_device *raid_device;
1407 unsigned long flags;
1408 int rc = 0;
1409
1410 if (list_empty(&ioc->raid_device_list))
1411 return rc;
1412
1413 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1414 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
1415 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1416 btdh->handle == raid_device->handle) {
1417 btdh->bus = raid_device->channel;
1418 btdh->id = raid_device->id;
1419 rc = 1;
1420 goto out;
1421 } else if (btdh->bus == raid_device->channel && btdh->id ==
1422 raid_device->id && btdh->handle == 0xFFFF) {
1423 btdh->handle = raid_device->handle;
1424 rc = 1;
1425 goto out;
1426 }
1427 }
1428 out:
1429 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1430 return rc;
1431 }
1432
1433 /**
1434 * _ctl_btdh_mapping - main handler for MPT3BTDHMAPPING opcode
1435 * @ioc: per adapter object
1436 * @arg: user space buffer containing ioctl content
1437 */
1438 static long
_ctl_btdh_mapping(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1439 _ctl_btdh_mapping(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1440 {
1441 struct mpt3_ioctl_btdh_mapping karg;
1442 int rc;
1443
1444 if (copy_from_user(&karg, arg, sizeof(karg))) {
1445 pr_err("failure at %s:%d/%s()!\n",
1446 __FILE__, __LINE__, __func__);
1447 return -EFAULT;
1448 }
1449
1450 dctlprintk(ioc, ioc_info(ioc, "%s\n",
1451 __func__));
1452
1453 rc = _ctl_btdh_search_sas_device(ioc, &karg);
1454 if (!rc)
1455 rc = _ctl_btdh_search_pcie_device(ioc, &karg);
1456 if (!rc)
1457 _ctl_btdh_search_raid_device(ioc, &karg);
1458
1459 if (copy_to_user(arg, &karg, sizeof(karg))) {
1460 pr_err("failure at %s:%d/%s()!\n",
1461 __FILE__, __LINE__, __func__);
1462 return -EFAULT;
1463 }
1464 return 0;
1465 }
1466
1467 /**
1468 * _ctl_diag_capability - return diag buffer capability
1469 * @ioc: per adapter object
1470 * @buffer_type: specifies either TRACE, SNAPSHOT, or EXTENDED
1471 *
1472 * returns 1 when diag buffer support is enabled in firmware
1473 */
1474 static u8
_ctl_diag_capability(struct MPT3SAS_ADAPTER * ioc,u8 buffer_type)1475 _ctl_diag_capability(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type)
1476 {
1477 u8 rc = 0;
1478
1479 switch (buffer_type) {
1480 case MPI2_DIAG_BUF_TYPE_TRACE:
1481 if (ioc->facts.IOCCapabilities &
1482 MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER)
1483 rc = 1;
1484 break;
1485 case MPI2_DIAG_BUF_TYPE_SNAPSHOT:
1486 if (ioc->facts.IOCCapabilities &
1487 MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER)
1488 rc = 1;
1489 break;
1490 case MPI2_DIAG_BUF_TYPE_EXTENDED:
1491 if (ioc->facts.IOCCapabilities &
1492 MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER)
1493 rc = 1;
1494 }
1495
1496 return rc;
1497 }
1498
1499
1500 /**
1501 * _ctl_diag_register_2 - wrapper for registering diag buffer support
1502 * @ioc: per adapter object
1503 * @diag_register: the diag_register struct passed in from user space
1504 *
1505 */
1506 static long
_ctl_diag_register_2(struct MPT3SAS_ADAPTER * ioc,struct mpt3_diag_register * diag_register)1507 _ctl_diag_register_2(struct MPT3SAS_ADAPTER *ioc,
1508 struct mpt3_diag_register *diag_register)
1509 {
1510 int rc, i;
1511 void *request_data = NULL;
1512 dma_addr_t request_data_dma;
1513 u32 request_data_sz = 0;
1514 Mpi2DiagBufferPostRequest_t *mpi_request;
1515 Mpi2DiagBufferPostReply_t *mpi_reply;
1516 u8 buffer_type;
1517 u16 smid;
1518 u16 ioc_status;
1519 u32 ioc_state;
1520 u8 issue_reset = 0;
1521
1522 dctlprintk(ioc, ioc_info(ioc, "%s\n",
1523 __func__));
1524
1525 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1526 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1527 ioc_err(ioc, "%s: failed due to ioc not operational\n",
1528 __func__);
1529 rc = -EAGAIN;
1530 goto out;
1531 }
1532
1533 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
1534 ioc_err(ioc, "%s: ctl_cmd in use\n", __func__);
1535 rc = -EAGAIN;
1536 goto out;
1537 }
1538
1539 buffer_type = diag_register->buffer_type;
1540 if (!_ctl_diag_capability(ioc, buffer_type)) {
1541 ioc_err(ioc, "%s: doesn't have capability for buffer_type(0x%02x)\n",
1542 __func__, buffer_type);
1543 return -EPERM;
1544 }
1545
1546 if (ioc->diag_buffer_status[buffer_type] &
1547 MPT3_DIAG_BUFFER_IS_REGISTERED) {
1548 ioc_err(ioc, "%s: already has a registered buffer for buffer_type(0x%02x)\n",
1549 __func__, buffer_type);
1550 return -EINVAL;
1551 }
1552
1553 if (diag_register->requested_buffer_size % 4) {
1554 ioc_err(ioc, "%s: the requested_buffer_size is not 4 byte aligned\n",
1555 __func__);
1556 return -EINVAL;
1557 }
1558
1559 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1560 if (!smid) {
1561 ioc_err(ioc, "%s: failed obtaining a smid\n", __func__);
1562 rc = -EAGAIN;
1563 goto out;
1564 }
1565
1566 rc = 0;
1567 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
1568 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1569 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1570 ioc->ctl_cmds.smid = smid;
1571
1572 request_data = ioc->diag_buffer[buffer_type];
1573 request_data_sz = diag_register->requested_buffer_size;
1574 ioc->unique_id[buffer_type] = diag_register->unique_id;
1575 ioc->diag_buffer_status[buffer_type] = 0;
1576 memcpy(ioc->product_specific[buffer_type],
1577 diag_register->product_specific, MPT3_PRODUCT_SPECIFIC_DWORDS);
1578 ioc->diagnostic_flags[buffer_type] = diag_register->diagnostic_flags;
1579
1580 if (request_data) {
1581 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1582 if (request_data_sz != ioc->diag_buffer_sz[buffer_type]) {
1583 dma_free_coherent(&ioc->pdev->dev,
1584 ioc->diag_buffer_sz[buffer_type],
1585 request_data, request_data_dma);
1586 request_data = NULL;
1587 }
1588 }
1589
1590 if (request_data == NULL) {
1591 ioc->diag_buffer_sz[buffer_type] = 0;
1592 ioc->diag_buffer_dma[buffer_type] = 0;
1593 request_data = dma_alloc_coherent(&ioc->pdev->dev,
1594 request_data_sz, &request_data_dma, GFP_KERNEL);
1595 if (request_data == NULL) {
1596 ioc_err(ioc, "%s: failed allocating memory for diag buffers, requested size(%d)\n",
1597 __func__, request_data_sz);
1598 mpt3sas_base_free_smid(ioc, smid);
1599 rc = -ENOMEM;
1600 goto out;
1601 }
1602 ioc->diag_buffer[buffer_type] = request_data;
1603 ioc->diag_buffer_sz[buffer_type] = request_data_sz;
1604 ioc->diag_buffer_dma[buffer_type] = request_data_dma;
1605 }
1606
1607 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
1608 mpi_request->BufferType = diag_register->buffer_type;
1609 mpi_request->Flags = cpu_to_le32(diag_register->diagnostic_flags);
1610 mpi_request->BufferAddress = cpu_to_le64(request_data_dma);
1611 mpi_request->BufferLength = cpu_to_le32(request_data_sz);
1612 mpi_request->VF_ID = 0; /* TODO */
1613 mpi_request->VP_ID = 0;
1614
1615 dctlprintk(ioc,
1616 ioc_info(ioc, "%s: diag_buffer(0x%p), dma(0x%llx), sz(%d)\n",
1617 __func__, request_data,
1618 (unsigned long long)request_data_dma,
1619 le32_to_cpu(mpi_request->BufferLength)));
1620
1621 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
1622 mpi_request->ProductSpecific[i] =
1623 cpu_to_le32(ioc->product_specific[buffer_type][i]);
1624
1625 init_completion(&ioc->ctl_cmds.done);
1626 ioc->put_smid_default(ioc, smid);
1627 wait_for_completion_timeout(&ioc->ctl_cmds.done,
1628 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
1629
1630 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1631 issue_reset =
1632 mpt3sas_base_check_cmd_timeout(ioc,
1633 ioc->ctl_cmds.status, mpi_request,
1634 sizeof(Mpi2DiagBufferPostRequest_t)/4);
1635 goto issue_host_reset;
1636 }
1637
1638 /* process the completed Reply Message Frame */
1639 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
1640 ioc_err(ioc, "%s: no reply message\n", __func__);
1641 rc = -EFAULT;
1642 goto out;
1643 }
1644
1645 mpi_reply = ioc->ctl_cmds.reply;
1646 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1647
1648 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1649 ioc->diag_buffer_status[buffer_type] |=
1650 MPT3_DIAG_BUFFER_IS_REGISTERED;
1651 dctlprintk(ioc, ioc_info(ioc, "%s: success\n", __func__));
1652 } else {
1653 ioc_info(ioc, "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
1654 __func__,
1655 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
1656 rc = -EFAULT;
1657 }
1658
1659 issue_host_reset:
1660 if (issue_reset)
1661 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1662
1663 out:
1664
1665 if (rc && request_data)
1666 dma_free_coherent(&ioc->pdev->dev, request_data_sz,
1667 request_data, request_data_dma);
1668
1669 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1670 return rc;
1671 }
1672
1673 /**
1674 * mpt3sas_enable_diag_buffer - enabling diag_buffers support driver load time
1675 * @ioc: per adapter object
1676 * @bits_to_register: bitwise field where trace is bit 0, and snapshot is bit 1
1677 *
1678 * This is called when command line option diag_buffer_enable is enabled
1679 * at driver load time.
1680 */
1681 void
mpt3sas_enable_diag_buffer(struct MPT3SAS_ADAPTER * ioc,u8 bits_to_register)1682 mpt3sas_enable_diag_buffer(struct MPT3SAS_ADAPTER *ioc, u8 bits_to_register)
1683 {
1684 struct mpt3_diag_register diag_register;
1685
1686 memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
1687
1688 if (bits_to_register & 1) {
1689 ioc_info(ioc, "registering trace buffer support\n");
1690 ioc->diag_trigger_master.MasterData =
1691 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
1692 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
1693 /* register for 2MB buffers */
1694 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1695 diag_register.unique_id = 0x7075900;
1696 _ctl_diag_register_2(ioc, &diag_register);
1697 }
1698
1699 if (bits_to_register & 2) {
1700 ioc_info(ioc, "registering snapshot buffer support\n");
1701 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_SNAPSHOT;
1702 /* register for 2MB buffers */
1703 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1704 diag_register.unique_id = 0x7075901;
1705 _ctl_diag_register_2(ioc, &diag_register);
1706 }
1707
1708 if (bits_to_register & 4) {
1709 ioc_info(ioc, "registering extended buffer support\n");
1710 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_EXTENDED;
1711 /* register for 2MB buffers */
1712 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1713 diag_register.unique_id = 0x7075901;
1714 _ctl_diag_register_2(ioc, &diag_register);
1715 }
1716 }
1717
1718 /**
1719 * _ctl_diag_register - application register with driver
1720 * @ioc: per adapter object
1721 * @arg: user space buffer containing ioctl content
1722 *
1723 * This will allow the driver to setup any required buffers that will be
1724 * needed by firmware to communicate with the driver.
1725 */
1726 static long
_ctl_diag_register(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1727 _ctl_diag_register(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1728 {
1729 struct mpt3_diag_register karg;
1730 long rc;
1731
1732 if (copy_from_user(&karg, arg, sizeof(karg))) {
1733 pr_err("failure at %s:%d/%s()!\n",
1734 __FILE__, __LINE__, __func__);
1735 return -EFAULT;
1736 }
1737
1738 rc = _ctl_diag_register_2(ioc, &karg);
1739 return rc;
1740 }
1741
1742 /**
1743 * _ctl_diag_unregister - application unregister with driver
1744 * @ioc: per adapter object
1745 * @arg: user space buffer containing ioctl content
1746 *
1747 * This will allow the driver to cleanup any memory allocated for diag
1748 * messages and to free up any resources.
1749 */
1750 static long
_ctl_diag_unregister(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1751 _ctl_diag_unregister(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1752 {
1753 struct mpt3_diag_unregister karg;
1754 void *request_data;
1755 dma_addr_t request_data_dma;
1756 u32 request_data_sz;
1757 u8 buffer_type;
1758
1759 if (copy_from_user(&karg, arg, sizeof(karg))) {
1760 pr_err("failure at %s:%d/%s()!\n",
1761 __FILE__, __LINE__, __func__);
1762 return -EFAULT;
1763 }
1764
1765 dctlprintk(ioc, ioc_info(ioc, "%s\n",
1766 __func__));
1767
1768 buffer_type = karg.unique_id & 0x000000ff;
1769 if (!_ctl_diag_capability(ioc, buffer_type)) {
1770 ioc_err(ioc, "%s: doesn't have capability for buffer_type(0x%02x)\n",
1771 __func__, buffer_type);
1772 return -EPERM;
1773 }
1774
1775 if ((ioc->diag_buffer_status[buffer_type] &
1776 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1777 ioc_err(ioc, "%s: buffer_type(0x%02x) is not registered\n",
1778 __func__, buffer_type);
1779 return -EINVAL;
1780 }
1781 if ((ioc->diag_buffer_status[buffer_type] &
1782 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
1783 ioc_err(ioc, "%s: buffer_type(0x%02x) has not been released\n",
1784 __func__, buffer_type);
1785 return -EINVAL;
1786 }
1787
1788 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1789 ioc_err(ioc, "%s: unique_id(0x%08x) is not registered\n",
1790 __func__, karg.unique_id);
1791 return -EINVAL;
1792 }
1793
1794 request_data = ioc->diag_buffer[buffer_type];
1795 if (!request_data) {
1796 ioc_err(ioc, "%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
1797 __func__, buffer_type);
1798 return -ENOMEM;
1799 }
1800
1801 request_data_sz = ioc->diag_buffer_sz[buffer_type];
1802 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1803 dma_free_coherent(&ioc->pdev->dev, request_data_sz,
1804 request_data, request_data_dma);
1805 ioc->diag_buffer[buffer_type] = NULL;
1806 ioc->diag_buffer_status[buffer_type] = 0;
1807 return 0;
1808 }
1809
1810 /**
1811 * _ctl_diag_query - query relevant info associated with diag buffers
1812 * @ioc: per adapter object
1813 * @arg: user space buffer containing ioctl content
1814 *
1815 * The application will send only buffer_type and unique_id. Driver will
1816 * inspect unique_id first, if valid, fill in all the info. If unique_id is
1817 * 0x00, the driver will return info specified by Buffer Type.
1818 */
1819 static long
_ctl_diag_query(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1820 _ctl_diag_query(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1821 {
1822 struct mpt3_diag_query karg;
1823 void *request_data;
1824 int i;
1825 u8 buffer_type;
1826
1827 if (copy_from_user(&karg, arg, sizeof(karg))) {
1828 pr_err("failure at %s:%d/%s()!\n",
1829 __FILE__, __LINE__, __func__);
1830 return -EFAULT;
1831 }
1832
1833 dctlprintk(ioc, ioc_info(ioc, "%s\n",
1834 __func__));
1835
1836 karg.application_flags = 0;
1837 buffer_type = karg.buffer_type;
1838
1839 if (!_ctl_diag_capability(ioc, buffer_type)) {
1840 ioc_err(ioc, "%s: doesn't have capability for buffer_type(0x%02x)\n",
1841 __func__, buffer_type);
1842 return -EPERM;
1843 }
1844
1845 if ((ioc->diag_buffer_status[buffer_type] &
1846 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1847 ioc_err(ioc, "%s: buffer_type(0x%02x) is not registered\n",
1848 __func__, buffer_type);
1849 return -EINVAL;
1850 }
1851
1852 if (karg.unique_id & 0xffffff00) {
1853 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1854 ioc_err(ioc, "%s: unique_id(0x%08x) is not registered\n",
1855 __func__, karg.unique_id);
1856 return -EINVAL;
1857 }
1858 }
1859
1860 request_data = ioc->diag_buffer[buffer_type];
1861 if (!request_data) {
1862 ioc_err(ioc, "%s: doesn't have buffer for buffer_type(0x%02x)\n",
1863 __func__, buffer_type);
1864 return -ENOMEM;
1865 }
1866
1867 if (ioc->diag_buffer_status[buffer_type] & MPT3_DIAG_BUFFER_IS_RELEASED)
1868 karg.application_flags = (MPT3_APP_FLAGS_APP_OWNED |
1869 MPT3_APP_FLAGS_BUFFER_VALID);
1870 else
1871 karg.application_flags = (MPT3_APP_FLAGS_APP_OWNED |
1872 MPT3_APP_FLAGS_BUFFER_VALID |
1873 MPT3_APP_FLAGS_FW_BUFFER_ACCESS);
1874
1875 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
1876 karg.product_specific[i] =
1877 ioc->product_specific[buffer_type][i];
1878
1879 karg.total_buffer_size = ioc->diag_buffer_sz[buffer_type];
1880 karg.driver_added_buffer_size = 0;
1881 karg.unique_id = ioc->unique_id[buffer_type];
1882 karg.diagnostic_flags = ioc->diagnostic_flags[buffer_type];
1883
1884 if (copy_to_user(arg, &karg, sizeof(struct mpt3_diag_query))) {
1885 ioc_err(ioc, "%s: unable to write mpt3_diag_query data @ %p\n",
1886 __func__, arg);
1887 return -EFAULT;
1888 }
1889 return 0;
1890 }
1891
1892 /**
1893 * mpt3sas_send_diag_release - Diag Release Message
1894 * @ioc: per adapter object
1895 * @buffer_type: specifies either TRACE, SNAPSHOT, or EXTENDED
1896 * @issue_reset: specifies whether host reset is required.
1897 *
1898 */
1899 int
mpt3sas_send_diag_release(struct MPT3SAS_ADAPTER * ioc,u8 buffer_type,u8 * issue_reset)1900 mpt3sas_send_diag_release(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type,
1901 u8 *issue_reset)
1902 {
1903 Mpi2DiagReleaseRequest_t *mpi_request;
1904 Mpi2DiagReleaseReply_t *mpi_reply;
1905 u16 smid;
1906 u16 ioc_status;
1907 u32 ioc_state;
1908 int rc;
1909
1910 dctlprintk(ioc, ioc_info(ioc, "%s\n",
1911 __func__));
1912
1913 rc = 0;
1914 *issue_reset = 0;
1915
1916 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1917 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1918 if (ioc->diag_buffer_status[buffer_type] &
1919 MPT3_DIAG_BUFFER_IS_REGISTERED)
1920 ioc->diag_buffer_status[buffer_type] |=
1921 MPT3_DIAG_BUFFER_IS_RELEASED;
1922 dctlprintk(ioc,
1923 ioc_info(ioc, "%s: skipping due to FAULT state\n",
1924 __func__));
1925 rc = -EAGAIN;
1926 goto out;
1927 }
1928
1929 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
1930 ioc_err(ioc, "%s: ctl_cmd in use\n", __func__);
1931 rc = -EAGAIN;
1932 goto out;
1933 }
1934
1935 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1936 if (!smid) {
1937 ioc_err(ioc, "%s: failed obtaining a smid\n", __func__);
1938 rc = -EAGAIN;
1939 goto out;
1940 }
1941
1942 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
1943 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1944 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1945 ioc->ctl_cmds.smid = smid;
1946
1947 mpi_request->Function = MPI2_FUNCTION_DIAG_RELEASE;
1948 mpi_request->BufferType = buffer_type;
1949 mpi_request->VF_ID = 0; /* TODO */
1950 mpi_request->VP_ID = 0;
1951
1952 init_completion(&ioc->ctl_cmds.done);
1953 ioc->put_smid_default(ioc, smid);
1954 wait_for_completion_timeout(&ioc->ctl_cmds.done,
1955 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
1956
1957 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1958 *issue_reset = mpt3sas_base_check_cmd_timeout(ioc,
1959 ioc->ctl_cmds.status, mpi_request,
1960 sizeof(Mpi2DiagReleaseRequest_t)/4);
1961 rc = -EFAULT;
1962 goto out;
1963 }
1964
1965 /* process the completed Reply Message Frame */
1966 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
1967 ioc_err(ioc, "%s: no reply message\n", __func__);
1968 rc = -EFAULT;
1969 goto out;
1970 }
1971
1972 mpi_reply = ioc->ctl_cmds.reply;
1973 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1974
1975 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1976 ioc->diag_buffer_status[buffer_type] |=
1977 MPT3_DIAG_BUFFER_IS_RELEASED;
1978 dctlprintk(ioc, ioc_info(ioc, "%s: success\n", __func__));
1979 } else {
1980 ioc_info(ioc, "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
1981 __func__,
1982 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
1983 rc = -EFAULT;
1984 }
1985
1986 out:
1987 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1988 return rc;
1989 }
1990
1991 /**
1992 * _ctl_diag_release - request to send Diag Release Message to firmware
1993 * @ioc: ?
1994 * @arg: user space buffer containing ioctl content
1995 *
1996 * This allows ownership of the specified buffer to returned to the driver,
1997 * allowing an application to read the buffer without fear that firmware is
1998 * overwriting information in the buffer.
1999 */
2000 static long
_ctl_diag_release(struct MPT3SAS_ADAPTER * ioc,void __user * arg)2001 _ctl_diag_release(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
2002 {
2003 struct mpt3_diag_release karg;
2004 void *request_data;
2005 int rc;
2006 u8 buffer_type;
2007 u8 issue_reset = 0;
2008
2009 if (copy_from_user(&karg, arg, sizeof(karg))) {
2010 pr_err("failure at %s:%d/%s()!\n",
2011 __FILE__, __LINE__, __func__);
2012 return -EFAULT;
2013 }
2014
2015 dctlprintk(ioc, ioc_info(ioc, "%s\n",
2016 __func__));
2017
2018 buffer_type = karg.unique_id & 0x000000ff;
2019 if (!_ctl_diag_capability(ioc, buffer_type)) {
2020 ioc_err(ioc, "%s: doesn't have capability for buffer_type(0x%02x)\n",
2021 __func__, buffer_type);
2022 return -EPERM;
2023 }
2024
2025 if ((ioc->diag_buffer_status[buffer_type] &
2026 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
2027 ioc_err(ioc, "%s: buffer_type(0x%02x) is not registered\n",
2028 __func__, buffer_type);
2029 return -EINVAL;
2030 }
2031
2032 if (karg.unique_id != ioc->unique_id[buffer_type]) {
2033 ioc_err(ioc, "%s: unique_id(0x%08x) is not registered\n",
2034 __func__, karg.unique_id);
2035 return -EINVAL;
2036 }
2037
2038 if (ioc->diag_buffer_status[buffer_type] &
2039 MPT3_DIAG_BUFFER_IS_RELEASED) {
2040 ioc_err(ioc, "%s: buffer_type(0x%02x) is already released\n",
2041 __func__, buffer_type);
2042 return 0;
2043 }
2044
2045 request_data = ioc->diag_buffer[buffer_type];
2046
2047 if (!request_data) {
2048 ioc_err(ioc, "%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
2049 __func__, buffer_type);
2050 return -ENOMEM;
2051 }
2052
2053 /* buffers were released by due to host reset */
2054 if ((ioc->diag_buffer_status[buffer_type] &
2055 MPT3_DIAG_BUFFER_IS_DIAG_RESET)) {
2056 ioc->diag_buffer_status[buffer_type] |=
2057 MPT3_DIAG_BUFFER_IS_RELEASED;
2058 ioc->diag_buffer_status[buffer_type] &=
2059 ~MPT3_DIAG_BUFFER_IS_DIAG_RESET;
2060 ioc_err(ioc, "%s: buffer_type(0x%02x) was released due to host reset\n",
2061 __func__, buffer_type);
2062 return 0;
2063 }
2064
2065 rc = mpt3sas_send_diag_release(ioc, buffer_type, &issue_reset);
2066
2067 if (issue_reset)
2068 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
2069
2070 return rc;
2071 }
2072
2073 /**
2074 * _ctl_diag_read_buffer - request for copy of the diag buffer
2075 * @ioc: per adapter object
2076 * @arg: user space buffer containing ioctl content
2077 */
2078 static long
_ctl_diag_read_buffer(struct MPT3SAS_ADAPTER * ioc,void __user * arg)2079 _ctl_diag_read_buffer(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
2080 {
2081 struct mpt3_diag_read_buffer karg;
2082 struct mpt3_diag_read_buffer __user *uarg = arg;
2083 void *request_data, *diag_data;
2084 Mpi2DiagBufferPostRequest_t *mpi_request;
2085 Mpi2DiagBufferPostReply_t *mpi_reply;
2086 int rc, i;
2087 u8 buffer_type;
2088 unsigned long request_size, copy_size;
2089 u16 smid;
2090 u16 ioc_status;
2091 u8 issue_reset = 0;
2092
2093 if (copy_from_user(&karg, arg, sizeof(karg))) {
2094 pr_err("failure at %s:%d/%s()!\n",
2095 __FILE__, __LINE__, __func__);
2096 return -EFAULT;
2097 }
2098
2099 dctlprintk(ioc, ioc_info(ioc, "%s\n",
2100 __func__));
2101
2102 buffer_type = karg.unique_id & 0x000000ff;
2103 if (!_ctl_diag_capability(ioc, buffer_type)) {
2104 ioc_err(ioc, "%s: doesn't have capability for buffer_type(0x%02x)\n",
2105 __func__, buffer_type);
2106 return -EPERM;
2107 }
2108
2109 if (karg.unique_id != ioc->unique_id[buffer_type]) {
2110 ioc_err(ioc, "%s: unique_id(0x%08x) is not registered\n",
2111 __func__, karg.unique_id);
2112 return -EINVAL;
2113 }
2114
2115 request_data = ioc->diag_buffer[buffer_type];
2116 if (!request_data) {
2117 ioc_err(ioc, "%s: doesn't have buffer for buffer_type(0x%02x)\n",
2118 __func__, buffer_type);
2119 return -ENOMEM;
2120 }
2121
2122 request_size = ioc->diag_buffer_sz[buffer_type];
2123
2124 if ((karg.starting_offset % 4) || (karg.bytes_to_read % 4)) {
2125 ioc_err(ioc, "%s: either the starting_offset or bytes_to_read are not 4 byte aligned\n",
2126 __func__);
2127 return -EINVAL;
2128 }
2129
2130 if (karg.starting_offset > request_size)
2131 return -EINVAL;
2132
2133 diag_data = (void *)(request_data + karg.starting_offset);
2134 dctlprintk(ioc,
2135 ioc_info(ioc, "%s: diag_buffer(%p), offset(%d), sz(%d)\n",
2136 __func__, diag_data, karg.starting_offset,
2137 karg.bytes_to_read));
2138
2139 /* Truncate data on requests that are too large */
2140 if ((diag_data + karg.bytes_to_read < diag_data) ||
2141 (diag_data + karg.bytes_to_read > request_data + request_size))
2142 copy_size = request_size - karg.starting_offset;
2143 else
2144 copy_size = karg.bytes_to_read;
2145
2146 if (copy_to_user((void __user *)uarg->diagnostic_data,
2147 diag_data, copy_size)) {
2148 ioc_err(ioc, "%s: Unable to write mpt_diag_read_buffer_t data @ %p\n",
2149 __func__, diag_data);
2150 return -EFAULT;
2151 }
2152
2153 if ((karg.flags & MPT3_FLAGS_REREGISTER) == 0)
2154 return 0;
2155
2156 dctlprintk(ioc,
2157 ioc_info(ioc, "%s: Reregister buffer_type(0x%02x)\n",
2158 __func__, buffer_type));
2159 if ((ioc->diag_buffer_status[buffer_type] &
2160 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
2161 dctlprintk(ioc,
2162 ioc_info(ioc, "%s: buffer_type(0x%02x) is still registered\n",
2163 __func__, buffer_type));
2164 return 0;
2165 }
2166 /* Get a free request frame and save the message context.
2167 */
2168
2169 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
2170 ioc_err(ioc, "%s: ctl_cmd in use\n", __func__);
2171 rc = -EAGAIN;
2172 goto out;
2173 }
2174
2175 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
2176 if (!smid) {
2177 ioc_err(ioc, "%s: failed obtaining a smid\n", __func__);
2178 rc = -EAGAIN;
2179 goto out;
2180 }
2181
2182 rc = 0;
2183 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
2184 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
2185 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
2186 ioc->ctl_cmds.smid = smid;
2187
2188 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
2189 mpi_request->BufferType = buffer_type;
2190 mpi_request->BufferLength =
2191 cpu_to_le32(ioc->diag_buffer_sz[buffer_type]);
2192 mpi_request->BufferAddress =
2193 cpu_to_le64(ioc->diag_buffer_dma[buffer_type]);
2194 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
2195 mpi_request->ProductSpecific[i] =
2196 cpu_to_le32(ioc->product_specific[buffer_type][i]);
2197 mpi_request->VF_ID = 0; /* TODO */
2198 mpi_request->VP_ID = 0;
2199
2200 init_completion(&ioc->ctl_cmds.done);
2201 ioc->put_smid_default(ioc, smid);
2202 wait_for_completion_timeout(&ioc->ctl_cmds.done,
2203 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
2204
2205 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
2206 issue_reset =
2207 mpt3sas_base_check_cmd_timeout(ioc,
2208 ioc->ctl_cmds.status, mpi_request,
2209 sizeof(Mpi2DiagBufferPostRequest_t)/4);
2210 goto issue_host_reset;
2211 }
2212
2213 /* process the completed Reply Message Frame */
2214 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
2215 ioc_err(ioc, "%s: no reply message\n", __func__);
2216 rc = -EFAULT;
2217 goto out;
2218 }
2219
2220 mpi_reply = ioc->ctl_cmds.reply;
2221 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
2222
2223 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
2224 ioc->diag_buffer_status[buffer_type] |=
2225 MPT3_DIAG_BUFFER_IS_REGISTERED;
2226 dctlprintk(ioc, ioc_info(ioc, "%s: success\n", __func__));
2227 } else {
2228 ioc_info(ioc, "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
2229 __func__, ioc_status,
2230 le32_to_cpu(mpi_reply->IOCLogInfo));
2231 rc = -EFAULT;
2232 }
2233
2234 issue_host_reset:
2235 if (issue_reset)
2236 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
2237
2238 out:
2239
2240 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
2241 return rc;
2242 }
2243
2244
2245
2246 #ifdef CONFIG_COMPAT
2247 /**
2248 * _ctl_compat_mpt_command - convert 32bit pointers to 64bit.
2249 * @ioc: per adapter object
2250 * @cmd: ioctl opcode
2251 * @arg: (struct mpt3_ioctl_command32)
2252 *
2253 * MPT3COMMAND32 - Handle 32bit applications running on 64bit os.
2254 */
2255 static long
_ctl_compat_mpt_command(struct MPT3SAS_ADAPTER * ioc,unsigned cmd,void __user * arg)2256 _ctl_compat_mpt_command(struct MPT3SAS_ADAPTER *ioc, unsigned cmd,
2257 void __user *arg)
2258 {
2259 struct mpt3_ioctl_command32 karg32;
2260 struct mpt3_ioctl_command32 __user *uarg;
2261 struct mpt3_ioctl_command karg;
2262
2263 if (_IOC_SIZE(cmd) != sizeof(struct mpt3_ioctl_command32))
2264 return -EINVAL;
2265
2266 uarg = (struct mpt3_ioctl_command32 __user *) arg;
2267
2268 if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32))) {
2269 pr_err("failure at %s:%d/%s()!\n",
2270 __FILE__, __LINE__, __func__);
2271 return -EFAULT;
2272 }
2273
2274 memset(&karg, 0, sizeof(struct mpt3_ioctl_command));
2275 karg.hdr.ioc_number = karg32.hdr.ioc_number;
2276 karg.hdr.port_number = karg32.hdr.port_number;
2277 karg.hdr.max_data_size = karg32.hdr.max_data_size;
2278 karg.timeout = karg32.timeout;
2279 karg.max_reply_bytes = karg32.max_reply_bytes;
2280 karg.data_in_size = karg32.data_in_size;
2281 karg.data_out_size = karg32.data_out_size;
2282 karg.max_sense_bytes = karg32.max_sense_bytes;
2283 karg.data_sge_offset = karg32.data_sge_offset;
2284 karg.reply_frame_buf_ptr = compat_ptr(karg32.reply_frame_buf_ptr);
2285 karg.data_in_buf_ptr = compat_ptr(karg32.data_in_buf_ptr);
2286 karg.data_out_buf_ptr = compat_ptr(karg32.data_out_buf_ptr);
2287 karg.sense_data_ptr = compat_ptr(karg32.sense_data_ptr);
2288 return _ctl_do_mpt_command(ioc, karg, &uarg->mf);
2289 }
2290 #endif
2291
2292 /**
2293 * _ctl_ioctl_main - main ioctl entry point
2294 * @file: (struct file)
2295 * @cmd: ioctl opcode
2296 * @arg: user space data buffer
2297 * @compat: handles 32 bit applications in 64bit os
2298 * @mpi_version: will be MPI2_VERSION for mpt2ctl ioctl device &
2299 * MPI25_VERSION | MPI26_VERSION for mpt3ctl ioctl device.
2300 */
2301 static long
_ctl_ioctl_main(struct file * file,unsigned int cmd,void __user * arg,u8 compat,u16 mpi_version)2302 _ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg,
2303 u8 compat, u16 mpi_version)
2304 {
2305 struct MPT3SAS_ADAPTER *ioc;
2306 struct mpt3_ioctl_header ioctl_header;
2307 enum block_state state;
2308 long ret = -EINVAL;
2309
2310 /* get IOCTL header */
2311 if (copy_from_user(&ioctl_header, (char __user *)arg,
2312 sizeof(struct mpt3_ioctl_header))) {
2313 pr_err("failure at %s:%d/%s()!\n",
2314 __FILE__, __LINE__, __func__);
2315 return -EFAULT;
2316 }
2317
2318 if (_ctl_verify_adapter(ioctl_header.ioc_number,
2319 &ioc, mpi_version) == -1 || !ioc)
2320 return -ENODEV;
2321
2322 /* pci_access_mutex lock acquired by ioctl path */
2323 mutex_lock(&ioc->pci_access_mutex);
2324
2325 if (ioc->shost_recovery || ioc->pci_error_recovery ||
2326 ioc->is_driver_loading || ioc->remove_host) {
2327 ret = -EAGAIN;
2328 goto out_unlock_pciaccess;
2329 }
2330
2331 state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING;
2332 if (state == NON_BLOCKING) {
2333 if (!mutex_trylock(&ioc->ctl_cmds.mutex)) {
2334 ret = -EAGAIN;
2335 goto out_unlock_pciaccess;
2336 }
2337 } else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) {
2338 ret = -ERESTARTSYS;
2339 goto out_unlock_pciaccess;
2340 }
2341
2342
2343 switch (cmd) {
2344 case MPT3IOCINFO:
2345 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_iocinfo))
2346 ret = _ctl_getiocinfo(ioc, arg);
2347 break;
2348 #ifdef CONFIG_COMPAT
2349 case MPT3COMMAND32:
2350 #endif
2351 case MPT3COMMAND:
2352 {
2353 struct mpt3_ioctl_command __user *uarg;
2354 struct mpt3_ioctl_command karg;
2355
2356 #ifdef CONFIG_COMPAT
2357 if (compat) {
2358 ret = _ctl_compat_mpt_command(ioc, cmd, arg);
2359 break;
2360 }
2361 #endif
2362 if (copy_from_user(&karg, arg, sizeof(karg))) {
2363 pr_err("failure at %s:%d/%s()!\n",
2364 __FILE__, __LINE__, __func__);
2365 ret = -EFAULT;
2366 break;
2367 }
2368
2369 if (karg.hdr.ioc_number != ioctl_header.ioc_number) {
2370 ret = -EINVAL;
2371 break;
2372 }
2373 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_command)) {
2374 uarg = arg;
2375 ret = _ctl_do_mpt_command(ioc, karg, &uarg->mf);
2376 }
2377 break;
2378 }
2379 case MPT3EVENTQUERY:
2380 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventquery))
2381 ret = _ctl_eventquery(ioc, arg);
2382 break;
2383 case MPT3EVENTENABLE:
2384 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventenable))
2385 ret = _ctl_eventenable(ioc, arg);
2386 break;
2387 case MPT3EVENTREPORT:
2388 ret = _ctl_eventreport(ioc, arg);
2389 break;
2390 case MPT3HARDRESET:
2391 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_diag_reset))
2392 ret = _ctl_do_reset(ioc, arg);
2393 break;
2394 case MPT3BTDHMAPPING:
2395 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_btdh_mapping))
2396 ret = _ctl_btdh_mapping(ioc, arg);
2397 break;
2398 case MPT3DIAGREGISTER:
2399 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_register))
2400 ret = _ctl_diag_register(ioc, arg);
2401 break;
2402 case MPT3DIAGUNREGISTER:
2403 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_unregister))
2404 ret = _ctl_diag_unregister(ioc, arg);
2405 break;
2406 case MPT3DIAGQUERY:
2407 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_query))
2408 ret = _ctl_diag_query(ioc, arg);
2409 break;
2410 case MPT3DIAGRELEASE:
2411 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_release))
2412 ret = _ctl_diag_release(ioc, arg);
2413 break;
2414 case MPT3DIAGREADBUFFER:
2415 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_read_buffer))
2416 ret = _ctl_diag_read_buffer(ioc, arg);
2417 break;
2418 default:
2419 dctlprintk(ioc,
2420 ioc_info(ioc, "unsupported ioctl opcode(0x%08x)\n",
2421 cmd));
2422 break;
2423 }
2424
2425 mutex_unlock(&ioc->ctl_cmds.mutex);
2426 out_unlock_pciaccess:
2427 mutex_unlock(&ioc->pci_access_mutex);
2428 return ret;
2429 }
2430
2431 /**
2432 * _ctl_ioctl - mpt3ctl main ioctl entry point (unlocked)
2433 * @file: (struct file)
2434 * @cmd: ioctl opcode
2435 * @arg: ?
2436 */
2437 static long
_ctl_ioctl(struct file * file,unsigned int cmd,unsigned long arg)2438 _ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2439 {
2440 long ret;
2441
2442 /* pass MPI25_VERSION | MPI26_VERSION value,
2443 * to indicate that this ioctl cmd
2444 * came from mpt3ctl ioctl device.
2445 */
2446 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0,
2447 MPI25_VERSION | MPI26_VERSION);
2448 return ret;
2449 }
2450
2451 /**
2452 * _ctl_mpt2_ioctl - mpt2ctl main ioctl entry point (unlocked)
2453 * @file: (struct file)
2454 * @cmd: ioctl opcode
2455 * @arg: ?
2456 */
2457 static long
_ctl_mpt2_ioctl(struct file * file,unsigned int cmd,unsigned long arg)2458 _ctl_mpt2_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2459 {
2460 long ret;
2461
2462 /* pass MPI2_VERSION value, to indicate that this ioctl cmd
2463 * came from mpt2ctl ioctl device.
2464 */
2465 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0, MPI2_VERSION);
2466 return ret;
2467 }
2468 #ifdef CONFIG_COMPAT
2469 /**
2470 *_ ctl_ioctl_compat - main ioctl entry point (compat)
2471 * @file: ?
2472 * @cmd: ?
2473 * @arg: ?
2474 *
2475 * This routine handles 32 bit applications in 64bit os.
2476 */
2477 static long
_ctl_ioctl_compat(struct file * file,unsigned cmd,unsigned long arg)2478 _ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
2479 {
2480 long ret;
2481
2482 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1,
2483 MPI25_VERSION | MPI26_VERSION);
2484 return ret;
2485 }
2486
2487 /**
2488 *_ ctl_mpt2_ioctl_compat - main ioctl entry point (compat)
2489 * @file: ?
2490 * @cmd: ?
2491 * @arg: ?
2492 *
2493 * This routine handles 32 bit applications in 64bit os.
2494 */
2495 static long
_ctl_mpt2_ioctl_compat(struct file * file,unsigned cmd,unsigned long arg)2496 _ctl_mpt2_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
2497 {
2498 long ret;
2499
2500 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1, MPI2_VERSION);
2501 return ret;
2502 }
2503 #endif
2504
2505 /* scsi host attributes */
2506 /**
2507 * version_fw_show - firmware version
2508 * @cdev: pointer to embedded class device
2509 * @attr: ?
2510 * @buf: the buffer returned
2511 *
2512 * A sysfs 'read-only' shost attribute.
2513 */
2514 static ssize_t
version_fw_show(struct device * cdev,struct device_attribute * attr,char * buf)2515 version_fw_show(struct device *cdev, struct device_attribute *attr,
2516 char *buf)
2517 {
2518 struct Scsi_Host *shost = class_to_shost(cdev);
2519 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2520
2521 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2522 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
2523 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
2524 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
2525 ioc->facts.FWVersion.Word & 0x000000FF);
2526 }
2527 static DEVICE_ATTR_RO(version_fw);
2528
2529 /**
2530 * version_bios_show - bios version
2531 * @cdev: pointer to embedded class device
2532 * @attr: ?
2533 * @buf: the buffer returned
2534 *
2535 * A sysfs 'read-only' shost attribute.
2536 */
2537 static ssize_t
version_bios_show(struct device * cdev,struct device_attribute * attr,char * buf)2538 version_bios_show(struct device *cdev, struct device_attribute *attr,
2539 char *buf)
2540 {
2541 struct Scsi_Host *shost = class_to_shost(cdev);
2542 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2543
2544 u32 version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
2545
2546 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2547 (version & 0xFF000000) >> 24,
2548 (version & 0x00FF0000) >> 16,
2549 (version & 0x0000FF00) >> 8,
2550 version & 0x000000FF);
2551 }
2552 static DEVICE_ATTR_RO(version_bios);
2553
2554 /**
2555 * version_mpi_show - MPI (message passing interface) version
2556 * @cdev: pointer to embedded class device
2557 * @attr: ?
2558 * @buf: the buffer returned
2559 *
2560 * A sysfs 'read-only' shost attribute.
2561 */
2562 static ssize_t
version_mpi_show(struct device * cdev,struct device_attribute * attr,char * buf)2563 version_mpi_show(struct device *cdev, struct device_attribute *attr,
2564 char *buf)
2565 {
2566 struct Scsi_Host *shost = class_to_shost(cdev);
2567 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2568
2569 return snprintf(buf, PAGE_SIZE, "%03x.%02x\n",
2570 ioc->facts.MsgVersion, ioc->facts.HeaderVersion >> 8);
2571 }
2572 static DEVICE_ATTR_RO(version_mpi);
2573
2574 /**
2575 * version_product_show - product name
2576 * @cdev: pointer to embedded class device
2577 * @attr: ?
2578 * @buf: the buffer returned
2579 *
2580 * A sysfs 'read-only' shost attribute.
2581 */
2582 static ssize_t
version_product_show(struct device * cdev,struct device_attribute * attr,char * buf)2583 version_product_show(struct device *cdev, struct device_attribute *attr,
2584 char *buf)
2585 {
2586 struct Scsi_Host *shost = class_to_shost(cdev);
2587 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2588
2589 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.ChipName);
2590 }
2591 static DEVICE_ATTR_RO(version_product);
2592
2593 /**
2594 * version_nvdata_persistent_show - ndvata persistent version
2595 * @cdev: pointer to embedded class device
2596 * @attr: ?
2597 * @buf: the buffer returned
2598 *
2599 * A sysfs 'read-only' shost attribute.
2600 */
2601 static ssize_t
version_nvdata_persistent_show(struct device * cdev,struct device_attribute * attr,char * buf)2602 version_nvdata_persistent_show(struct device *cdev,
2603 struct device_attribute *attr, char *buf)
2604 {
2605 struct Scsi_Host *shost = class_to_shost(cdev);
2606 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2607
2608 return snprintf(buf, PAGE_SIZE, "%08xh\n",
2609 le32_to_cpu(ioc->iounit_pg0.NvdataVersionPersistent.Word));
2610 }
2611 static DEVICE_ATTR_RO(version_nvdata_persistent);
2612
2613 /**
2614 * version_nvdata_default_show - nvdata default version
2615 * @cdev: pointer to embedded class device
2616 * @attr: ?
2617 * @buf: the buffer returned
2618 *
2619 * A sysfs 'read-only' shost attribute.
2620 */
2621 static ssize_t
version_nvdata_default_show(struct device * cdev,struct device_attribute * attr,char * buf)2622 version_nvdata_default_show(struct device *cdev, struct device_attribute
2623 *attr, char *buf)
2624 {
2625 struct Scsi_Host *shost = class_to_shost(cdev);
2626 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2627
2628 return snprintf(buf, PAGE_SIZE, "%08xh\n",
2629 le32_to_cpu(ioc->iounit_pg0.NvdataVersionDefault.Word));
2630 }
2631 static DEVICE_ATTR_RO(version_nvdata_default);
2632
2633 /**
2634 * board_name_show - board name
2635 * @cdev: pointer to embedded class device
2636 * @attr: ?
2637 * @buf: the buffer returned
2638 *
2639 * A sysfs 'read-only' shost attribute.
2640 */
2641 static ssize_t
board_name_show(struct device * cdev,struct device_attribute * attr,char * buf)2642 board_name_show(struct device *cdev, struct device_attribute *attr,
2643 char *buf)
2644 {
2645 struct Scsi_Host *shost = class_to_shost(cdev);
2646 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2647
2648 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardName);
2649 }
2650 static DEVICE_ATTR_RO(board_name);
2651
2652 /**
2653 * board_assembly_show - board assembly name
2654 * @cdev: pointer to embedded class device
2655 * @attr: ?
2656 * @buf: the buffer returned
2657 *
2658 * A sysfs 'read-only' shost attribute.
2659 */
2660 static ssize_t
board_assembly_show(struct device * cdev,struct device_attribute * attr,char * buf)2661 board_assembly_show(struct device *cdev, struct device_attribute *attr,
2662 char *buf)
2663 {
2664 struct Scsi_Host *shost = class_to_shost(cdev);
2665 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2666
2667 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardAssembly);
2668 }
2669 static DEVICE_ATTR_RO(board_assembly);
2670
2671 /**
2672 * board_tracer_show - board tracer number
2673 * @cdev: pointer to embedded class device
2674 * @attr: ?
2675 * @buf: the buffer returned
2676 *
2677 * A sysfs 'read-only' shost attribute.
2678 */
2679 static ssize_t
board_tracer_show(struct device * cdev,struct device_attribute * attr,char * buf)2680 board_tracer_show(struct device *cdev, struct device_attribute *attr,
2681 char *buf)
2682 {
2683 struct Scsi_Host *shost = class_to_shost(cdev);
2684 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2685
2686 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardTracerNumber);
2687 }
2688 static DEVICE_ATTR_RO(board_tracer);
2689
2690 /**
2691 * io_delay_show - io missing delay
2692 * @cdev: pointer to embedded class device
2693 * @attr: ?
2694 * @buf: the buffer returned
2695 *
2696 * This is for firmware implemention for deboucing device
2697 * removal events.
2698 *
2699 * A sysfs 'read-only' shost attribute.
2700 */
2701 static ssize_t
io_delay_show(struct device * cdev,struct device_attribute * attr,char * buf)2702 io_delay_show(struct device *cdev, struct device_attribute *attr,
2703 char *buf)
2704 {
2705 struct Scsi_Host *shost = class_to_shost(cdev);
2706 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2707
2708 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
2709 }
2710 static DEVICE_ATTR_RO(io_delay);
2711
2712 /**
2713 * device_delay_show - device missing delay
2714 * @cdev: pointer to embedded class device
2715 * @attr: ?
2716 * @buf: the buffer returned
2717 *
2718 * This is for firmware implemention for deboucing device
2719 * removal events.
2720 *
2721 * A sysfs 'read-only' shost attribute.
2722 */
2723 static ssize_t
device_delay_show(struct device * cdev,struct device_attribute * attr,char * buf)2724 device_delay_show(struct device *cdev, struct device_attribute *attr,
2725 char *buf)
2726 {
2727 struct Scsi_Host *shost = class_to_shost(cdev);
2728 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2729
2730 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
2731 }
2732 static DEVICE_ATTR_RO(device_delay);
2733
2734 /**
2735 * fw_queue_depth_show - global credits
2736 * @cdev: pointer to embedded class device
2737 * @attr: ?
2738 * @buf: the buffer returned
2739 *
2740 * This is firmware queue depth limit
2741 *
2742 * A sysfs 'read-only' shost attribute.
2743 */
2744 static ssize_t
fw_queue_depth_show(struct device * cdev,struct device_attribute * attr,char * buf)2745 fw_queue_depth_show(struct device *cdev, struct device_attribute *attr,
2746 char *buf)
2747 {
2748 struct Scsi_Host *shost = class_to_shost(cdev);
2749 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2750
2751 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->facts.RequestCredit);
2752 }
2753 static DEVICE_ATTR_RO(fw_queue_depth);
2754
2755 /**
2756 * sas_address_show - sas address
2757 * @cdev: pointer to embedded class device
2758 * @attr: ?
2759 * @buf: the buffer returned
2760 *
2761 * This is the controller sas address
2762 *
2763 * A sysfs 'read-only' shost attribute.
2764 */
2765 static ssize_t
host_sas_address_show(struct device * cdev,struct device_attribute * attr,char * buf)2766 host_sas_address_show(struct device *cdev, struct device_attribute *attr,
2767 char *buf)
2768
2769 {
2770 struct Scsi_Host *shost = class_to_shost(cdev);
2771 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2772
2773 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
2774 (unsigned long long)ioc->sas_hba.sas_address);
2775 }
2776 static DEVICE_ATTR_RO(host_sas_address);
2777
2778 /**
2779 * logging_level_show - logging level
2780 * @cdev: pointer to embedded class device
2781 * @attr: ?
2782 * @buf: the buffer returned
2783 *
2784 * A sysfs 'read/write' shost attribute.
2785 */
2786 static ssize_t
logging_level_show(struct device * cdev,struct device_attribute * attr,char * buf)2787 logging_level_show(struct device *cdev, struct device_attribute *attr,
2788 char *buf)
2789 {
2790 struct Scsi_Host *shost = class_to_shost(cdev);
2791 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2792
2793 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->logging_level);
2794 }
2795 static ssize_t
logging_level_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)2796 logging_level_store(struct device *cdev, struct device_attribute *attr,
2797 const char *buf, size_t count)
2798 {
2799 struct Scsi_Host *shost = class_to_shost(cdev);
2800 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2801 int val = 0;
2802
2803 if (sscanf(buf, "%x", &val) != 1)
2804 return -EINVAL;
2805
2806 ioc->logging_level = val;
2807 ioc_info(ioc, "logging_level=%08xh\n",
2808 ioc->logging_level);
2809 return strlen(buf);
2810 }
2811 static DEVICE_ATTR_RW(logging_level);
2812
2813 /**
2814 * fwfault_debug_show - show/store fwfault_debug
2815 * @cdev: pointer to embedded class device
2816 * @attr: ?
2817 * @buf: the buffer returned
2818 *
2819 * mpt3sas_fwfault_debug is command line option
2820 * A sysfs 'read/write' shost attribute.
2821 */
2822 static ssize_t
fwfault_debug_show(struct device * cdev,struct device_attribute * attr,char * buf)2823 fwfault_debug_show(struct device *cdev, struct device_attribute *attr,
2824 char *buf)
2825 {
2826 struct Scsi_Host *shost = class_to_shost(cdev);
2827 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2828
2829 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->fwfault_debug);
2830 }
2831 static ssize_t
fwfault_debug_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)2832 fwfault_debug_store(struct device *cdev, struct device_attribute *attr,
2833 const char *buf, size_t count)
2834 {
2835 struct Scsi_Host *shost = class_to_shost(cdev);
2836 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2837 int val = 0;
2838
2839 if (sscanf(buf, "%d", &val) != 1)
2840 return -EINVAL;
2841
2842 ioc->fwfault_debug = val;
2843 ioc_info(ioc, "fwfault_debug=%d\n",
2844 ioc->fwfault_debug);
2845 return strlen(buf);
2846 }
2847 static DEVICE_ATTR_RW(fwfault_debug);
2848
2849 /**
2850 * ioc_reset_count_show - ioc reset count
2851 * @cdev: pointer to embedded class device
2852 * @attr: ?
2853 * @buf: the buffer returned
2854 *
2855 * This is firmware queue depth limit
2856 *
2857 * A sysfs 'read-only' shost attribute.
2858 */
2859 static ssize_t
ioc_reset_count_show(struct device * cdev,struct device_attribute * attr,char * buf)2860 ioc_reset_count_show(struct device *cdev, struct device_attribute *attr,
2861 char *buf)
2862 {
2863 struct Scsi_Host *shost = class_to_shost(cdev);
2864 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2865
2866 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->ioc_reset_count);
2867 }
2868 static DEVICE_ATTR_RO(ioc_reset_count);
2869
2870 /**
2871 * reply_queue_count_show - number of reply queues
2872 * @cdev: pointer to embedded class device
2873 * @attr: ?
2874 * @buf: the buffer returned
2875 *
2876 * This is number of reply queues
2877 *
2878 * A sysfs 'read-only' shost attribute.
2879 */
2880 static ssize_t
reply_queue_count_show(struct device * cdev,struct device_attribute * attr,char * buf)2881 reply_queue_count_show(struct device *cdev,
2882 struct device_attribute *attr, char *buf)
2883 {
2884 u8 reply_queue_count;
2885 struct Scsi_Host *shost = class_to_shost(cdev);
2886 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2887
2888 if ((ioc->facts.IOCCapabilities &
2889 MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX) && ioc->msix_enable)
2890 reply_queue_count = ioc->reply_queue_count;
2891 else
2892 reply_queue_count = 1;
2893
2894 return snprintf(buf, PAGE_SIZE, "%d\n", reply_queue_count);
2895 }
2896 static DEVICE_ATTR_RO(reply_queue_count);
2897
2898 /**
2899 * BRM_status_show - Backup Rail Monitor Status
2900 * @cdev: pointer to embedded class device
2901 * @attr: ?
2902 * @buf: the buffer returned
2903 *
2904 * This is number of reply queues
2905 *
2906 * A sysfs 'read-only' shost attribute.
2907 */
2908 static ssize_t
BRM_status_show(struct device * cdev,struct device_attribute * attr,char * buf)2909 BRM_status_show(struct device *cdev, struct device_attribute *attr,
2910 char *buf)
2911 {
2912 struct Scsi_Host *shost = class_to_shost(cdev);
2913 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2914 Mpi2IOUnitPage3_t *io_unit_pg3 = NULL;
2915 Mpi2ConfigReply_t mpi_reply;
2916 u16 backup_rail_monitor_status = 0;
2917 u16 ioc_status;
2918 int sz;
2919 ssize_t rc = 0;
2920
2921 if (!ioc->is_warpdrive) {
2922 ioc_err(ioc, "%s: BRM attribute is only for warpdrive\n",
2923 __func__);
2924 goto out;
2925 }
2926 /* pci_access_mutex lock acquired by sysfs show path */
2927 mutex_lock(&ioc->pci_access_mutex);
2928 if (ioc->pci_error_recovery || ioc->remove_host) {
2929 mutex_unlock(&ioc->pci_access_mutex);
2930 return 0;
2931 }
2932
2933 /* allocate upto GPIOVal 36 entries */
2934 sz = offsetof(Mpi2IOUnitPage3_t, GPIOVal) + (sizeof(u16) * 36);
2935 io_unit_pg3 = kzalloc(sz, GFP_KERNEL);
2936 if (!io_unit_pg3) {
2937 ioc_err(ioc, "%s: failed allocating memory for iounit_pg3: (%d) bytes\n",
2938 __func__, sz);
2939 goto out;
2940 }
2941
2942 if (mpt3sas_config_get_iounit_pg3(ioc, &mpi_reply, io_unit_pg3, sz) !=
2943 0) {
2944 ioc_err(ioc, "%s: failed reading iounit_pg3\n",
2945 __func__);
2946 goto out;
2947 }
2948
2949 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
2950 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
2951 ioc_err(ioc, "%s: iounit_pg3 failed with ioc_status(0x%04x)\n",
2952 __func__, ioc_status);
2953 goto out;
2954 }
2955
2956 if (io_unit_pg3->GPIOCount < 25) {
2957 ioc_err(ioc, "%s: iounit_pg3->GPIOCount less than 25 entries, detected (%d) entries\n",
2958 __func__, io_unit_pg3->GPIOCount);
2959 goto out;
2960 }
2961
2962 /* BRM status is in bit zero of GPIOVal[24] */
2963 backup_rail_monitor_status = le16_to_cpu(io_unit_pg3->GPIOVal[24]);
2964 rc = snprintf(buf, PAGE_SIZE, "%d\n", (backup_rail_monitor_status & 1));
2965
2966 out:
2967 kfree(io_unit_pg3);
2968 mutex_unlock(&ioc->pci_access_mutex);
2969 return rc;
2970 }
2971 static DEVICE_ATTR_RO(BRM_status);
2972
2973 struct DIAG_BUFFER_START {
2974 __le32 Size;
2975 __le32 DiagVersion;
2976 u8 BufferType;
2977 u8 Reserved[3];
2978 __le32 Reserved1;
2979 __le32 Reserved2;
2980 __le32 Reserved3;
2981 };
2982
2983 /**
2984 * host_trace_buffer_size_show - host buffer size (trace only)
2985 * @cdev: pointer to embedded class device
2986 * @attr: ?
2987 * @buf: the buffer returned
2988 *
2989 * A sysfs 'read-only' shost attribute.
2990 */
2991 static ssize_t
host_trace_buffer_size_show(struct device * cdev,struct device_attribute * attr,char * buf)2992 host_trace_buffer_size_show(struct device *cdev,
2993 struct device_attribute *attr, char *buf)
2994 {
2995 struct Scsi_Host *shost = class_to_shost(cdev);
2996 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2997 u32 size = 0;
2998 struct DIAG_BUFFER_START *request_data;
2999
3000 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
3001 ioc_err(ioc, "%s: host_trace_buffer is not registered\n",
3002 __func__);
3003 return 0;
3004 }
3005
3006 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3007 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
3008 ioc_err(ioc, "%s: host_trace_buffer is not registered\n",
3009 __func__);
3010 return 0;
3011 }
3012
3013 request_data = (struct DIAG_BUFFER_START *)
3014 ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE];
3015 if ((le32_to_cpu(request_data->DiagVersion) == 0x00000000 ||
3016 le32_to_cpu(request_data->DiagVersion) == 0x01000000 ||
3017 le32_to_cpu(request_data->DiagVersion) == 0x01010000) &&
3018 le32_to_cpu(request_data->Reserved3) == 0x4742444c)
3019 size = le32_to_cpu(request_data->Size);
3020
3021 ioc->ring_buffer_sz = size;
3022 return snprintf(buf, PAGE_SIZE, "%d\n", size);
3023 }
3024 static DEVICE_ATTR_RO(host_trace_buffer_size);
3025
3026 /**
3027 * host_trace_buffer_show - firmware ring buffer (trace only)
3028 * @cdev: pointer to embedded class device
3029 * @attr: ?
3030 * @buf: the buffer returned
3031 *
3032 * A sysfs 'read/write' shost attribute.
3033 *
3034 * You will only be able to read 4k bytes of ring buffer at a time.
3035 * In order to read beyond 4k bytes, you will have to write out the
3036 * offset to the same attribute, it will move the pointer.
3037 */
3038 static ssize_t
host_trace_buffer_show(struct device * cdev,struct device_attribute * attr,char * buf)3039 host_trace_buffer_show(struct device *cdev, struct device_attribute *attr,
3040 char *buf)
3041 {
3042 struct Scsi_Host *shost = class_to_shost(cdev);
3043 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3044 void *request_data;
3045 u32 size;
3046
3047 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
3048 ioc_err(ioc, "%s: host_trace_buffer is not registered\n",
3049 __func__);
3050 return 0;
3051 }
3052
3053 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3054 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
3055 ioc_err(ioc, "%s: host_trace_buffer is not registered\n",
3056 __func__);
3057 return 0;
3058 }
3059
3060 if (ioc->ring_buffer_offset > ioc->ring_buffer_sz)
3061 return 0;
3062
3063 size = ioc->ring_buffer_sz - ioc->ring_buffer_offset;
3064 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size;
3065 request_data = ioc->diag_buffer[0] + ioc->ring_buffer_offset;
3066 memcpy(buf, request_data, size);
3067 return size;
3068 }
3069
3070 static ssize_t
host_trace_buffer_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3071 host_trace_buffer_store(struct device *cdev, struct device_attribute *attr,
3072 const char *buf, size_t count)
3073 {
3074 struct Scsi_Host *shost = class_to_shost(cdev);
3075 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3076 int val = 0;
3077
3078 if (sscanf(buf, "%d", &val) != 1)
3079 return -EINVAL;
3080
3081 ioc->ring_buffer_offset = val;
3082 return strlen(buf);
3083 }
3084 static DEVICE_ATTR_RW(host_trace_buffer);
3085
3086
3087 /*****************************************/
3088
3089 /**
3090 * host_trace_buffer_enable_show - firmware ring buffer (trace only)
3091 * @cdev: pointer to embedded class device
3092 * @attr: ?
3093 * @buf: the buffer returned
3094 *
3095 * A sysfs 'read/write' shost attribute.
3096 *
3097 * This is a mechnism to post/release host_trace_buffers
3098 */
3099 static ssize_t
host_trace_buffer_enable_show(struct device * cdev,struct device_attribute * attr,char * buf)3100 host_trace_buffer_enable_show(struct device *cdev,
3101 struct device_attribute *attr, char *buf)
3102 {
3103 struct Scsi_Host *shost = class_to_shost(cdev);
3104 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3105
3106 if ((!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) ||
3107 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3108 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0))
3109 return snprintf(buf, PAGE_SIZE, "off\n");
3110 else if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3111 MPT3_DIAG_BUFFER_IS_RELEASED))
3112 return snprintf(buf, PAGE_SIZE, "release\n");
3113 else
3114 return snprintf(buf, PAGE_SIZE, "post\n");
3115 }
3116
3117 static ssize_t
host_trace_buffer_enable_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3118 host_trace_buffer_enable_store(struct device *cdev,
3119 struct device_attribute *attr, const char *buf, size_t count)
3120 {
3121 struct Scsi_Host *shost = class_to_shost(cdev);
3122 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3123 char str[10] = "";
3124 struct mpt3_diag_register diag_register;
3125 u8 issue_reset = 0;
3126
3127 /* don't allow post/release occurr while recovery is active */
3128 if (ioc->shost_recovery || ioc->remove_host ||
3129 ioc->pci_error_recovery || ioc->is_driver_loading)
3130 return -EBUSY;
3131
3132 if (sscanf(buf, "%9s", str) != 1)
3133 return -EINVAL;
3134
3135 if (!strcmp(str, "post")) {
3136 /* exit out if host buffers are already posted */
3137 if ((ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) &&
3138 (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3139 MPT3_DIAG_BUFFER_IS_REGISTERED) &&
3140 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3141 MPT3_DIAG_BUFFER_IS_RELEASED) == 0))
3142 goto out;
3143 memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
3144 ioc_info(ioc, "posting host trace buffers\n");
3145 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
3146 diag_register.requested_buffer_size = (1024 * 1024);
3147 diag_register.unique_id = 0x7075900;
3148 ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] = 0;
3149 _ctl_diag_register_2(ioc, &diag_register);
3150 } else if (!strcmp(str, "release")) {
3151 /* exit out if host buffers are already released */
3152 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE])
3153 goto out;
3154 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3155 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0)
3156 goto out;
3157 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3158 MPT3_DIAG_BUFFER_IS_RELEASED))
3159 goto out;
3160 ioc_info(ioc, "releasing host trace buffer\n");
3161 mpt3sas_send_diag_release(ioc, MPI2_DIAG_BUF_TYPE_TRACE,
3162 &issue_reset);
3163 }
3164
3165 out:
3166 return strlen(buf);
3167 }
3168 static DEVICE_ATTR_RW(host_trace_buffer_enable);
3169
3170 /*********** diagnostic trigger suppport *********************************/
3171
3172 /**
3173 * diag_trigger_master_show - show the diag_trigger_master attribute
3174 * @cdev: pointer to embedded class device
3175 * @attr: ?
3176 * @buf: the buffer returned
3177 *
3178 * A sysfs 'read/write' shost attribute.
3179 */
3180 static ssize_t
diag_trigger_master_show(struct device * cdev,struct device_attribute * attr,char * buf)3181 diag_trigger_master_show(struct device *cdev,
3182 struct device_attribute *attr, char *buf)
3183
3184 {
3185 struct Scsi_Host *shost = class_to_shost(cdev);
3186 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3187 unsigned long flags;
3188 ssize_t rc;
3189
3190 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3191 rc = sizeof(struct SL_WH_MASTER_TRIGGER_T);
3192 memcpy(buf, &ioc->diag_trigger_master, rc);
3193 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3194 return rc;
3195 }
3196
3197 /**
3198 * diag_trigger_master_store - store the diag_trigger_master attribute
3199 * @cdev: pointer to embedded class device
3200 * @attr: ?
3201 * @buf: the buffer returned
3202 * @count: ?
3203 *
3204 * A sysfs 'read/write' shost attribute.
3205 */
3206 static ssize_t
diag_trigger_master_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3207 diag_trigger_master_store(struct device *cdev,
3208 struct device_attribute *attr, const char *buf, size_t count)
3209
3210 {
3211 struct Scsi_Host *shost = class_to_shost(cdev);
3212 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3213 unsigned long flags;
3214 ssize_t rc;
3215
3216 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3217 rc = min(sizeof(struct SL_WH_MASTER_TRIGGER_T), count);
3218 memset(&ioc->diag_trigger_master, 0,
3219 sizeof(struct SL_WH_MASTER_TRIGGER_T));
3220 memcpy(&ioc->diag_trigger_master, buf, rc);
3221 ioc->diag_trigger_master.MasterData |=
3222 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
3223 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3224 return rc;
3225 }
3226 static DEVICE_ATTR_RW(diag_trigger_master);
3227
3228
3229 /**
3230 * diag_trigger_event_show - show the diag_trigger_event attribute
3231 * @cdev: pointer to embedded class device
3232 * @attr: ?
3233 * @buf: the buffer returned
3234 *
3235 * A sysfs 'read/write' shost attribute.
3236 */
3237 static ssize_t
diag_trigger_event_show(struct device * cdev,struct device_attribute * attr,char * buf)3238 diag_trigger_event_show(struct device *cdev,
3239 struct device_attribute *attr, char *buf)
3240 {
3241 struct Scsi_Host *shost = class_to_shost(cdev);
3242 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3243 unsigned long flags;
3244 ssize_t rc;
3245
3246 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3247 rc = sizeof(struct SL_WH_EVENT_TRIGGERS_T);
3248 memcpy(buf, &ioc->diag_trigger_event, rc);
3249 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3250 return rc;
3251 }
3252
3253 /**
3254 * diag_trigger_event_store - store the diag_trigger_event attribute
3255 * @cdev: pointer to embedded class device
3256 * @attr: ?
3257 * @buf: the buffer returned
3258 * @count: ?
3259 *
3260 * A sysfs 'read/write' shost attribute.
3261 */
3262 static ssize_t
diag_trigger_event_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3263 diag_trigger_event_store(struct device *cdev,
3264 struct device_attribute *attr, const char *buf, size_t count)
3265
3266 {
3267 struct Scsi_Host *shost = class_to_shost(cdev);
3268 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3269 unsigned long flags;
3270 ssize_t sz;
3271
3272 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3273 sz = min(sizeof(struct SL_WH_EVENT_TRIGGERS_T), count);
3274 memset(&ioc->diag_trigger_event, 0,
3275 sizeof(struct SL_WH_EVENT_TRIGGERS_T));
3276 memcpy(&ioc->diag_trigger_event, buf, sz);
3277 if (ioc->diag_trigger_event.ValidEntries > NUM_VALID_ENTRIES)
3278 ioc->diag_trigger_event.ValidEntries = NUM_VALID_ENTRIES;
3279 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3280 return sz;
3281 }
3282 static DEVICE_ATTR_RW(diag_trigger_event);
3283
3284
3285 /**
3286 * diag_trigger_scsi_show - show the diag_trigger_scsi attribute
3287 * @cdev: pointer to embedded class device
3288 * @attr: ?
3289 * @buf: the buffer returned
3290 *
3291 * A sysfs 'read/write' shost attribute.
3292 */
3293 static ssize_t
diag_trigger_scsi_show(struct device * cdev,struct device_attribute * attr,char * buf)3294 diag_trigger_scsi_show(struct device *cdev,
3295 struct device_attribute *attr, char *buf)
3296 {
3297 struct Scsi_Host *shost = class_to_shost(cdev);
3298 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3299 unsigned long flags;
3300 ssize_t rc;
3301
3302 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3303 rc = sizeof(struct SL_WH_SCSI_TRIGGERS_T);
3304 memcpy(buf, &ioc->diag_trigger_scsi, rc);
3305 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3306 return rc;
3307 }
3308
3309 /**
3310 * diag_trigger_scsi_store - store the diag_trigger_scsi attribute
3311 * @cdev: pointer to embedded class device
3312 * @attr: ?
3313 * @buf: the buffer returned
3314 * @count: ?
3315 *
3316 * A sysfs 'read/write' shost attribute.
3317 */
3318 static ssize_t
diag_trigger_scsi_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3319 diag_trigger_scsi_store(struct device *cdev,
3320 struct device_attribute *attr, const char *buf, size_t count)
3321 {
3322 struct Scsi_Host *shost = class_to_shost(cdev);
3323 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3324 unsigned long flags;
3325 ssize_t sz;
3326
3327 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3328 sz = min(sizeof(ioc->diag_trigger_scsi), count);
3329 memset(&ioc->diag_trigger_scsi, 0, sizeof(ioc->diag_trigger_scsi));
3330 memcpy(&ioc->diag_trigger_scsi, buf, sz);
3331 if (ioc->diag_trigger_scsi.ValidEntries > NUM_VALID_ENTRIES)
3332 ioc->diag_trigger_scsi.ValidEntries = NUM_VALID_ENTRIES;
3333 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3334 return sz;
3335 }
3336 static DEVICE_ATTR_RW(diag_trigger_scsi);
3337
3338
3339 /**
3340 * diag_trigger_scsi_show - show the diag_trigger_mpi attribute
3341 * @cdev: pointer to embedded class device
3342 * @attr: ?
3343 * @buf: the buffer returned
3344 *
3345 * A sysfs 'read/write' shost attribute.
3346 */
3347 static ssize_t
diag_trigger_mpi_show(struct device * cdev,struct device_attribute * attr,char * buf)3348 diag_trigger_mpi_show(struct device *cdev,
3349 struct device_attribute *attr, char *buf)
3350 {
3351 struct Scsi_Host *shost = class_to_shost(cdev);
3352 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3353 unsigned long flags;
3354 ssize_t rc;
3355
3356 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3357 rc = sizeof(struct SL_WH_MPI_TRIGGERS_T);
3358 memcpy(buf, &ioc->diag_trigger_mpi, rc);
3359 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3360 return rc;
3361 }
3362
3363 /**
3364 * diag_trigger_mpi_store - store the diag_trigger_mpi attribute
3365 * @cdev: pointer to embedded class device
3366 * @attr: ?
3367 * @buf: the buffer returned
3368 * @count: ?
3369 *
3370 * A sysfs 'read/write' shost attribute.
3371 */
3372 static ssize_t
diag_trigger_mpi_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3373 diag_trigger_mpi_store(struct device *cdev,
3374 struct device_attribute *attr, const char *buf, size_t count)
3375 {
3376 struct Scsi_Host *shost = class_to_shost(cdev);
3377 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3378 unsigned long flags;
3379 ssize_t sz;
3380
3381 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3382 sz = min(sizeof(struct SL_WH_MPI_TRIGGERS_T), count);
3383 memset(&ioc->diag_trigger_mpi, 0,
3384 sizeof(ioc->diag_trigger_mpi));
3385 memcpy(&ioc->diag_trigger_mpi, buf, sz);
3386 if (ioc->diag_trigger_mpi.ValidEntries > NUM_VALID_ENTRIES)
3387 ioc->diag_trigger_mpi.ValidEntries = NUM_VALID_ENTRIES;
3388 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3389 return sz;
3390 }
3391
3392 static DEVICE_ATTR_RW(diag_trigger_mpi);
3393
3394 /*********** diagnostic trigger suppport *** END ****************************/
3395
3396 /*****************************************/
3397
3398 /**
3399 * drv_support_bitmap_show - driver supported feature bitmap
3400 * @cdev - pointer to embedded class device
3401 * @buf - the buffer returned
3402 *
3403 * A sysfs 'read-only' shost attribute.
3404 */
3405 static ssize_t
drv_support_bitmap_show(struct device * cdev,struct device_attribute * attr,char * buf)3406 drv_support_bitmap_show(struct device *cdev,
3407 struct device_attribute *attr, char *buf)
3408 {
3409 struct Scsi_Host *shost = class_to_shost(cdev);
3410 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3411
3412 return snprintf(buf, PAGE_SIZE, "0x%08x\n", ioc->drv_support_bitmap);
3413 }
3414 static DEVICE_ATTR_RO(drv_support_bitmap);
3415
3416 /**
3417 * enable_sdev_max_qd_show - display whether sdev max qd is enabled/disabled
3418 * @cdev - pointer to embedded class device
3419 * @buf - the buffer returned
3420 *
3421 * A sysfs read/write shost attribute. This attribute is used to set the
3422 * targets queue depth to HBA IO queue depth if this attribute is enabled.
3423 */
3424 static ssize_t
enable_sdev_max_qd_show(struct device * cdev,struct device_attribute * attr,char * buf)3425 enable_sdev_max_qd_show(struct device *cdev,
3426 struct device_attribute *attr, char *buf)
3427 {
3428 struct Scsi_Host *shost = class_to_shost(cdev);
3429 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3430
3431 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->enable_sdev_max_qd);
3432 }
3433
3434 /**
3435 * enable_sdev_max_qd_store - Enable/disable sdev max qd
3436 * @cdev - pointer to embedded class device
3437 * @buf - the buffer returned
3438 *
3439 * A sysfs read/write shost attribute. This attribute is used to set the
3440 * targets queue depth to HBA IO queue depth if this attribute is enabled.
3441 * If this attribute is disabled then targets will have corresponding default
3442 * queue depth.
3443 */
3444 static ssize_t
enable_sdev_max_qd_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3445 enable_sdev_max_qd_store(struct device *cdev,
3446 struct device_attribute *attr, const char *buf, size_t count)
3447 {
3448 struct Scsi_Host *shost = class_to_shost(cdev);
3449 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3450 struct MPT3SAS_DEVICE *sas_device_priv_data;
3451 struct MPT3SAS_TARGET *sas_target_priv_data;
3452 int val = 0;
3453 struct scsi_device *sdev;
3454 struct _raid_device *raid_device;
3455 int qdepth;
3456
3457 if (kstrtoint(buf, 0, &val) != 0)
3458 return -EINVAL;
3459
3460 switch (val) {
3461 case 0:
3462 ioc->enable_sdev_max_qd = 0;
3463 shost_for_each_device(sdev, ioc->shost) {
3464 sas_device_priv_data = sdev->hostdata;
3465 if (!sas_device_priv_data)
3466 continue;
3467 sas_target_priv_data = sas_device_priv_data->sas_target;
3468 if (!sas_target_priv_data)
3469 continue;
3470
3471 if (sas_target_priv_data->flags &
3472 MPT_TARGET_FLAGS_VOLUME) {
3473 raid_device =
3474 mpt3sas_raid_device_find_by_handle(ioc,
3475 sas_target_priv_data->handle);
3476
3477 switch (raid_device->volume_type) {
3478 case MPI2_RAID_VOL_TYPE_RAID0:
3479 if (raid_device->device_info &
3480 MPI2_SAS_DEVICE_INFO_SSP_TARGET)
3481 qdepth =
3482 MPT3SAS_SAS_QUEUE_DEPTH;
3483 else
3484 qdepth =
3485 MPT3SAS_SATA_QUEUE_DEPTH;
3486 break;
3487 case MPI2_RAID_VOL_TYPE_RAID1E:
3488 case MPI2_RAID_VOL_TYPE_RAID1:
3489 case MPI2_RAID_VOL_TYPE_RAID10:
3490 case MPI2_RAID_VOL_TYPE_UNKNOWN:
3491 default:
3492 qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
3493 }
3494 } else if (sas_target_priv_data->flags &
3495 MPT_TARGET_FLAGS_PCIE_DEVICE)
3496 qdepth = MPT3SAS_NVME_QUEUE_DEPTH;
3497 else
3498 qdepth = MPT3SAS_SAS_QUEUE_DEPTH;
3499
3500 mpt3sas_scsih_change_queue_depth(sdev, qdepth);
3501 }
3502 break;
3503 case 1:
3504 ioc->enable_sdev_max_qd = 1;
3505 shost_for_each_device(sdev, ioc->shost)
3506 mpt3sas_scsih_change_queue_depth(sdev,
3507 shost->can_queue);
3508 break;
3509 default:
3510 return -EINVAL;
3511 }
3512
3513 return strlen(buf);
3514 }
3515 static DEVICE_ATTR_RW(enable_sdev_max_qd);
3516
3517 struct device_attribute *mpt3sas_host_attrs[] = {
3518 &dev_attr_version_fw,
3519 &dev_attr_version_bios,
3520 &dev_attr_version_mpi,
3521 &dev_attr_version_product,
3522 &dev_attr_version_nvdata_persistent,
3523 &dev_attr_version_nvdata_default,
3524 &dev_attr_board_name,
3525 &dev_attr_board_assembly,
3526 &dev_attr_board_tracer,
3527 &dev_attr_io_delay,
3528 &dev_attr_device_delay,
3529 &dev_attr_logging_level,
3530 &dev_attr_fwfault_debug,
3531 &dev_attr_fw_queue_depth,
3532 &dev_attr_host_sas_address,
3533 &dev_attr_ioc_reset_count,
3534 &dev_attr_host_trace_buffer_size,
3535 &dev_attr_host_trace_buffer,
3536 &dev_attr_host_trace_buffer_enable,
3537 &dev_attr_reply_queue_count,
3538 &dev_attr_diag_trigger_master,
3539 &dev_attr_diag_trigger_event,
3540 &dev_attr_diag_trigger_scsi,
3541 &dev_attr_diag_trigger_mpi,
3542 &dev_attr_drv_support_bitmap,
3543 &dev_attr_BRM_status,
3544 &dev_attr_enable_sdev_max_qd,
3545 NULL,
3546 };
3547
3548 /* device attributes */
3549
3550 /**
3551 * sas_address_show - sas address
3552 * @dev: pointer to embedded class device
3553 * @attr: ?
3554 * @buf: the buffer returned
3555 *
3556 * This is the sas address for the target
3557 *
3558 * A sysfs 'read-only' shost attribute.
3559 */
3560 static ssize_t
sas_address_show(struct device * dev,struct device_attribute * attr,char * buf)3561 sas_address_show(struct device *dev, struct device_attribute *attr,
3562 char *buf)
3563 {
3564 struct scsi_device *sdev = to_scsi_device(dev);
3565 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3566
3567 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
3568 (unsigned long long)sas_device_priv_data->sas_target->sas_address);
3569 }
3570 static DEVICE_ATTR_RO(sas_address);
3571
3572 /**
3573 * sas_device_handle_show - device handle
3574 * @dev: pointer to embedded class device
3575 * @attr: ?
3576 * @buf: the buffer returned
3577 *
3578 * This is the firmware assigned device handle
3579 *
3580 * A sysfs 'read-only' shost attribute.
3581 */
3582 static ssize_t
sas_device_handle_show(struct device * dev,struct device_attribute * attr,char * buf)3583 sas_device_handle_show(struct device *dev, struct device_attribute *attr,
3584 char *buf)
3585 {
3586 struct scsi_device *sdev = to_scsi_device(dev);
3587 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3588
3589 return snprintf(buf, PAGE_SIZE, "0x%04x\n",
3590 sas_device_priv_data->sas_target->handle);
3591 }
3592 static DEVICE_ATTR_RO(sas_device_handle);
3593
3594 /**
3595 * sas_ncq_io_prio_show - send prioritized io commands to device
3596 * @dev: pointer to embedded device
3597 * @attr: ?
3598 * @buf: the buffer returned
3599 *
3600 * A sysfs 'read/write' sdev attribute, only works with SATA
3601 */
3602 static ssize_t
sas_ncq_prio_enable_show(struct device * dev,struct device_attribute * attr,char * buf)3603 sas_ncq_prio_enable_show(struct device *dev,
3604 struct device_attribute *attr, char *buf)
3605 {
3606 struct scsi_device *sdev = to_scsi_device(dev);
3607 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3608
3609 return snprintf(buf, PAGE_SIZE, "%d\n",
3610 sas_device_priv_data->ncq_prio_enable);
3611 }
3612
3613 static ssize_t
sas_ncq_prio_enable_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)3614 sas_ncq_prio_enable_store(struct device *dev,
3615 struct device_attribute *attr,
3616 const char *buf, size_t count)
3617 {
3618 struct scsi_device *sdev = to_scsi_device(dev);
3619 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3620 bool ncq_prio_enable = 0;
3621
3622 if (kstrtobool(buf, &ncq_prio_enable))
3623 return -EINVAL;
3624
3625 if (!scsih_ncq_prio_supp(sdev))
3626 return -EINVAL;
3627
3628 sas_device_priv_data->ncq_prio_enable = ncq_prio_enable;
3629 return strlen(buf);
3630 }
3631 static DEVICE_ATTR_RW(sas_ncq_prio_enable);
3632
3633 struct device_attribute *mpt3sas_dev_attrs[] = {
3634 &dev_attr_sas_address,
3635 &dev_attr_sas_device_handle,
3636 &dev_attr_sas_ncq_prio_enable,
3637 NULL,
3638 };
3639
3640 /* file operations table for mpt3ctl device */
3641 static const struct file_operations ctl_fops = {
3642 .owner = THIS_MODULE,
3643 .unlocked_ioctl = _ctl_ioctl,
3644 .poll = _ctl_poll,
3645 .fasync = _ctl_fasync,
3646 #ifdef CONFIG_COMPAT
3647 .compat_ioctl = _ctl_ioctl_compat,
3648 #endif
3649 };
3650
3651 /* file operations table for mpt2ctl device */
3652 static const struct file_operations ctl_gen2_fops = {
3653 .owner = THIS_MODULE,
3654 .unlocked_ioctl = _ctl_mpt2_ioctl,
3655 .poll = _ctl_poll,
3656 .fasync = _ctl_fasync,
3657 #ifdef CONFIG_COMPAT
3658 .compat_ioctl = _ctl_mpt2_ioctl_compat,
3659 #endif
3660 };
3661
3662 static struct miscdevice ctl_dev = {
3663 .minor = MPT3SAS_MINOR,
3664 .name = MPT3SAS_DEV_NAME,
3665 .fops = &ctl_fops,
3666 };
3667
3668 static struct miscdevice gen2_ctl_dev = {
3669 .minor = MPT2SAS_MINOR,
3670 .name = MPT2SAS_DEV_NAME,
3671 .fops = &ctl_gen2_fops,
3672 };
3673
3674 /**
3675 * mpt3sas_ctl_init - main entry point for ctl.
3676 * @hbas_to_enumerate: ?
3677 */
3678 void
mpt3sas_ctl_init(ushort hbas_to_enumerate)3679 mpt3sas_ctl_init(ushort hbas_to_enumerate)
3680 {
3681 async_queue = NULL;
3682
3683 /* Don't register mpt3ctl ioctl device if
3684 * hbas_to_enumarate is one.
3685 */
3686 if (hbas_to_enumerate != 1)
3687 if (misc_register(&ctl_dev) < 0)
3688 pr_err("%s can't register misc device [minor=%d]\n",
3689 MPT3SAS_DRIVER_NAME, MPT3SAS_MINOR);
3690
3691 /* Don't register mpt3ctl ioctl device if
3692 * hbas_to_enumarate is two.
3693 */
3694 if (hbas_to_enumerate != 2)
3695 if (misc_register(&gen2_ctl_dev) < 0)
3696 pr_err("%s can't register misc device [minor=%d]\n",
3697 MPT2SAS_DRIVER_NAME, MPT2SAS_MINOR);
3698
3699 init_waitqueue_head(&ctl_poll_wait);
3700 }
3701
3702 /**
3703 * mpt3sas_ctl_exit - exit point for ctl
3704 * @hbas_to_enumerate: ?
3705 */
3706 void
mpt3sas_ctl_exit(ushort hbas_to_enumerate)3707 mpt3sas_ctl_exit(ushort hbas_to_enumerate)
3708 {
3709 struct MPT3SAS_ADAPTER *ioc;
3710 int i;
3711
3712 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
3713
3714 /* free memory associated to diag buffers */
3715 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
3716 if (!ioc->diag_buffer[i])
3717 continue;
3718 if (!(ioc->diag_buffer_status[i] &
3719 MPT3_DIAG_BUFFER_IS_REGISTERED))
3720 continue;
3721 if ((ioc->diag_buffer_status[i] &
3722 MPT3_DIAG_BUFFER_IS_RELEASED))
3723 continue;
3724 dma_free_coherent(&ioc->pdev->dev,
3725 ioc->diag_buffer_sz[i],
3726 ioc->diag_buffer[i],
3727 ioc->diag_buffer_dma[i]);
3728 ioc->diag_buffer[i] = NULL;
3729 ioc->diag_buffer_status[i] = 0;
3730 }
3731
3732 kfree(ioc->event_log);
3733 }
3734 if (hbas_to_enumerate != 1)
3735 misc_deregister(&ctl_dev);
3736 if (hbas_to_enumerate != 2)
3737 misc_deregister(&gen2_ctl_dev);
3738 }
3739