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 case MPI2_FUNCTION_TOOLBOX:
184 desc = "toolbox";
185 break;
186 case MPI2_FUNCTION_NVME_ENCAPSULATED:
187 desc = "nvme_encapsulated";
188 break;
189 }
190
191 if (!desc)
192 return;
193
194 ioc_info(ioc, "%s: %s, smid(%d)\n", calling_function_name, desc, smid);
195
196 if (!mpi_reply)
197 return;
198
199 if (mpi_reply->IOCStatus || mpi_reply->IOCLogInfo)
200 ioc_info(ioc, "\tiocstatus(0x%04x), loginfo(0x%08x)\n",
201 le16_to_cpu(mpi_reply->IOCStatus),
202 le32_to_cpu(mpi_reply->IOCLogInfo));
203
204 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
205 mpi_request->Function ==
206 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
207 Mpi2SCSIIOReply_t *scsi_reply =
208 (Mpi2SCSIIOReply_t *)mpi_reply;
209 struct _sas_device *sas_device = NULL;
210 struct _pcie_device *pcie_device = NULL;
211
212 sas_device = mpt3sas_get_sdev_by_handle(ioc,
213 le16_to_cpu(scsi_reply->DevHandle));
214 if (sas_device) {
215 ioc_warn(ioc, "\tsas_address(0x%016llx), phy(%d)\n",
216 (u64)sas_device->sas_address,
217 sas_device->phy);
218 ioc_warn(ioc, "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
219 (u64)sas_device->enclosure_logical_id,
220 sas_device->slot);
221 sas_device_put(sas_device);
222 }
223 if (!sas_device) {
224 pcie_device = mpt3sas_get_pdev_by_handle(ioc,
225 le16_to_cpu(scsi_reply->DevHandle));
226 if (pcie_device) {
227 ioc_warn(ioc, "\tWWID(0x%016llx), port(%d)\n",
228 (unsigned long long)pcie_device->wwid,
229 pcie_device->port_num);
230 if (pcie_device->enclosure_handle != 0)
231 ioc_warn(ioc, "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
232 (u64)pcie_device->enclosure_logical_id,
233 pcie_device->slot);
234 pcie_device_put(pcie_device);
235 }
236 }
237 if (scsi_reply->SCSIState || scsi_reply->SCSIStatus)
238 ioc_info(ioc, "\tscsi_state(0x%02x), scsi_status(0x%02x)\n",
239 scsi_reply->SCSIState,
240 scsi_reply->SCSIStatus);
241 }
242 }
243
244 /**
245 * mpt3sas_ctl_done - ctl module completion routine
246 * @ioc: per adapter object
247 * @smid: system request message index
248 * @msix_index: MSIX table index supplied by the OS
249 * @reply: reply message frame(lower 32bit addr)
250 * Context: none.
251 *
252 * The callback handler when using ioc->ctl_cb_idx.
253 *
254 * Return: 1 meaning mf should be freed from _base_interrupt
255 * 0 means the mf is freed from this function.
256 */
257 u8
mpt3sas_ctl_done(struct MPT3SAS_ADAPTER * ioc,u16 smid,u8 msix_index,u32 reply)258 mpt3sas_ctl_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
259 u32 reply)
260 {
261 MPI2DefaultReply_t *mpi_reply;
262 Mpi2SCSIIOReply_t *scsiio_reply;
263 Mpi26NVMeEncapsulatedErrorReply_t *nvme_error_reply;
264 const void *sense_data;
265 u32 sz;
266
267 if (ioc->ctl_cmds.status == MPT3_CMD_NOT_USED)
268 return 1;
269 if (ioc->ctl_cmds.smid != smid)
270 return 1;
271 ioc->ctl_cmds.status |= MPT3_CMD_COMPLETE;
272 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
273 if (mpi_reply) {
274 memcpy(ioc->ctl_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
275 ioc->ctl_cmds.status |= MPT3_CMD_REPLY_VALID;
276 /* get sense data */
277 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
278 mpi_reply->Function ==
279 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
280 scsiio_reply = (Mpi2SCSIIOReply_t *)mpi_reply;
281 if (scsiio_reply->SCSIState &
282 MPI2_SCSI_STATE_AUTOSENSE_VALID) {
283 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
284 le32_to_cpu(scsiio_reply->SenseCount));
285 sense_data = mpt3sas_base_get_sense_buffer(ioc,
286 smid);
287 memcpy(ioc->ctl_cmds.sense, sense_data, sz);
288 }
289 }
290 /*
291 * Get Error Response data for NVMe device. The ctl_cmds.sense
292 * buffer is used to store the Error Response data.
293 */
294 if (mpi_reply->Function == MPI2_FUNCTION_NVME_ENCAPSULATED) {
295 nvme_error_reply =
296 (Mpi26NVMeEncapsulatedErrorReply_t *)mpi_reply;
297 sz = min_t(u32, NVME_ERROR_RESPONSE_SIZE,
298 le16_to_cpu(nvme_error_reply->ErrorResponseCount));
299 sense_data = mpt3sas_base_get_sense_buffer(ioc, smid);
300 memcpy(ioc->ctl_cmds.sense, sense_data, sz);
301 }
302 }
303
304 _ctl_display_some_debug(ioc, smid, "ctl_done", mpi_reply);
305 ioc->ctl_cmds.status &= ~MPT3_CMD_PENDING;
306 complete(&ioc->ctl_cmds.done);
307 return 1;
308 }
309
310 /**
311 * _ctl_check_event_type - determines when an event needs logging
312 * @ioc: per adapter object
313 * @event: firmware event
314 *
315 * The bitmask in ioc->event_type[] indicates which events should be
316 * be saved in the driver event_log. This bitmask is set by application.
317 *
318 * Return: 1 when event should be captured, or zero means no match.
319 */
320 static int
_ctl_check_event_type(struct MPT3SAS_ADAPTER * ioc,u16 event)321 _ctl_check_event_type(struct MPT3SAS_ADAPTER *ioc, u16 event)
322 {
323 u16 i;
324 u32 desired_event;
325
326 if (event >= 128 || !event || !ioc->event_log)
327 return 0;
328
329 desired_event = (1 << (event % 32));
330 if (!desired_event)
331 desired_event = 1;
332 i = event / 32;
333 return desired_event & ioc->event_type[i];
334 }
335
336 /**
337 * mpt3sas_ctl_add_to_event_log - add event
338 * @ioc: per adapter object
339 * @mpi_reply: reply message frame
340 */
341 void
mpt3sas_ctl_add_to_event_log(struct MPT3SAS_ADAPTER * ioc,Mpi2EventNotificationReply_t * mpi_reply)342 mpt3sas_ctl_add_to_event_log(struct MPT3SAS_ADAPTER *ioc,
343 Mpi2EventNotificationReply_t *mpi_reply)
344 {
345 struct MPT3_IOCTL_EVENTS *event_log;
346 u16 event;
347 int i;
348 u32 sz, event_data_sz;
349 u8 send_aen = 0;
350
351 if (!ioc->event_log)
352 return;
353
354 event = le16_to_cpu(mpi_reply->Event);
355
356 if (_ctl_check_event_type(ioc, event)) {
357
358 /* insert entry into circular event_log */
359 i = ioc->event_context % MPT3SAS_CTL_EVENT_LOG_SIZE;
360 event_log = ioc->event_log;
361 event_log[i].event = event;
362 event_log[i].context = ioc->event_context++;
363
364 event_data_sz = le16_to_cpu(mpi_reply->EventDataLength)*4;
365 sz = min_t(u32, event_data_sz, MPT3_EVENT_DATA_SIZE);
366 memset(event_log[i].data, 0, MPT3_EVENT_DATA_SIZE);
367 memcpy(event_log[i].data, mpi_reply->EventData, sz);
368 send_aen = 1;
369 }
370
371 /* This aen_event_read_flag flag is set until the
372 * application has read the event log.
373 * For MPI2_EVENT_LOG_ENTRY_ADDED, we always notify.
374 */
375 if (event == MPI2_EVENT_LOG_ENTRY_ADDED ||
376 (send_aen && !ioc->aen_event_read_flag)) {
377 ioc->aen_event_read_flag = 1;
378 wake_up_interruptible(&ctl_poll_wait);
379 if (async_queue)
380 kill_fasync(&async_queue, SIGIO, POLL_IN);
381 }
382 }
383
384 /**
385 * mpt3sas_ctl_event_callback - firmware event handler (called at ISR time)
386 * @ioc: per adapter object
387 * @msix_index: MSIX table index supplied by the OS
388 * @reply: reply message frame(lower 32bit addr)
389 * Context: interrupt.
390 *
391 * This function merely adds a new work task into ioc->firmware_event_thread.
392 * The tasks are worked from _firmware_event_work in user context.
393 *
394 * Return: 1 meaning mf should be freed from _base_interrupt
395 * 0 means the mf is freed from this function.
396 */
397 u8
mpt3sas_ctl_event_callback(struct MPT3SAS_ADAPTER * ioc,u8 msix_index,u32 reply)398 mpt3sas_ctl_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index,
399 u32 reply)
400 {
401 Mpi2EventNotificationReply_t *mpi_reply;
402
403 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
404 if (mpi_reply)
405 mpt3sas_ctl_add_to_event_log(ioc, mpi_reply);
406 return 1;
407 }
408
409 /**
410 * _ctl_verify_adapter - validates ioc_number passed from application
411 * @ioc_number: ?
412 * @iocpp: The ioc pointer is returned in this.
413 * @mpi_version: will be MPI2_VERSION for mpt2ctl ioctl device &
414 * MPI25_VERSION | MPI26_VERSION for mpt3ctl ioctl device.
415 *
416 * Return: (-1) means error, else ioc_number.
417 */
418 static int
_ctl_verify_adapter(int ioc_number,struct MPT3SAS_ADAPTER ** iocpp,int mpi_version)419 _ctl_verify_adapter(int ioc_number, struct MPT3SAS_ADAPTER **iocpp,
420 int mpi_version)
421 {
422 struct MPT3SAS_ADAPTER *ioc;
423 int version = 0;
424 /* global ioc lock to protect controller on list operations */
425 spin_lock(&gioc_lock);
426 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
427 if (ioc->id != ioc_number)
428 continue;
429 /* Check whether this ioctl command is from right
430 * ioctl device or not, if not continue the search.
431 */
432 version = ioc->hba_mpi_version_belonged;
433 /* MPI25_VERSION and MPI26_VERSION uses same ioctl
434 * device.
435 */
436 if (mpi_version == (MPI25_VERSION | MPI26_VERSION)) {
437 if ((version == MPI25_VERSION) ||
438 (version == MPI26_VERSION))
439 goto out;
440 else
441 continue;
442 } else {
443 if (version != mpi_version)
444 continue;
445 }
446 out:
447 spin_unlock(&gioc_lock);
448 *iocpp = ioc;
449 return ioc_number;
450 }
451 spin_unlock(&gioc_lock);
452 *iocpp = NULL;
453 return -1;
454 }
455
456 /**
457 * mpt3sas_ctl_pre_reset_handler - reset callback handler (for ctl)
458 * @ioc: per adapter object
459 *
460 * The handler for doing any required cleanup or initialization.
461 */
mpt3sas_ctl_pre_reset_handler(struct MPT3SAS_ADAPTER * ioc)462 void mpt3sas_ctl_pre_reset_handler(struct MPT3SAS_ADAPTER *ioc)
463 {
464 int i;
465 u8 issue_reset;
466
467 dtmprintk(ioc, ioc_info(ioc, "%s: MPT3_IOC_PRE_RESET\n", __func__));
468 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
469 if (!(ioc->diag_buffer_status[i] &
470 MPT3_DIAG_BUFFER_IS_REGISTERED))
471 continue;
472 if ((ioc->diag_buffer_status[i] &
473 MPT3_DIAG_BUFFER_IS_RELEASED))
474 continue;
475
476 /*
477 * add a log message to indicate the release
478 */
479 ioc_info(ioc,
480 "%s: Releasing the trace buffer due to adapter reset.",
481 __func__);
482 ioc->htb_rel.buffer_rel_condition =
483 MPT3_DIAG_BUFFER_REL_TRIGGER;
484 mpt3sas_send_diag_release(ioc, i, &issue_reset);
485 }
486 }
487
488 /**
489 * mpt3sas_ctl_clear_outstanding_ioctls - clears outstanding ioctl cmd.
490 * @ioc: per adapter object
491 *
492 * The handler for doing any required cleanup or initialization.
493 */
mpt3sas_ctl_clear_outstanding_ioctls(struct MPT3SAS_ADAPTER * ioc)494 void mpt3sas_ctl_clear_outstanding_ioctls(struct MPT3SAS_ADAPTER *ioc)
495 {
496 dtmprintk(ioc,
497 ioc_info(ioc, "%s: clear outstanding ioctl cmd\n", __func__));
498 if (ioc->ctl_cmds.status & MPT3_CMD_PENDING) {
499 ioc->ctl_cmds.status |= MPT3_CMD_RESET;
500 mpt3sas_base_free_smid(ioc, ioc->ctl_cmds.smid);
501 complete(&ioc->ctl_cmds.done);
502 }
503 }
504
505 /**
506 * mpt3sas_ctl_reset_done_handler - reset callback handler (for ctl)
507 * @ioc: per adapter object
508 *
509 * The handler for doing any required cleanup or initialization.
510 */
mpt3sas_ctl_reset_done_handler(struct MPT3SAS_ADAPTER * ioc)511 void mpt3sas_ctl_reset_done_handler(struct MPT3SAS_ADAPTER *ioc)
512 {
513 int i;
514
515 dtmprintk(ioc, ioc_info(ioc, "%s: MPT3_IOC_DONE_RESET\n", __func__));
516
517 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
518 if (!(ioc->diag_buffer_status[i] &
519 MPT3_DIAG_BUFFER_IS_REGISTERED))
520 continue;
521 if ((ioc->diag_buffer_status[i] &
522 MPT3_DIAG_BUFFER_IS_RELEASED))
523 continue;
524 ioc->diag_buffer_status[i] |=
525 MPT3_DIAG_BUFFER_IS_DIAG_RESET;
526 }
527 }
528
529 /**
530 * _ctl_fasync -
531 * @fd: ?
532 * @filep: ?
533 * @mode: ?
534 *
535 * Called when application request fasyn callback handler.
536 */
537 static int
_ctl_fasync(int fd,struct file * filep,int mode)538 _ctl_fasync(int fd, struct file *filep, int mode)
539 {
540 return fasync_helper(fd, filep, mode, &async_queue);
541 }
542
543 /**
544 * _ctl_poll -
545 * @filep: ?
546 * @wait: ?
547 *
548 */
549 static __poll_t
_ctl_poll(struct file * filep,poll_table * wait)550 _ctl_poll(struct file *filep, poll_table *wait)
551 {
552 struct MPT3SAS_ADAPTER *ioc;
553
554 poll_wait(filep, &ctl_poll_wait, wait);
555
556 /* global ioc lock to protect controller on list operations */
557 spin_lock(&gioc_lock);
558 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
559 if (ioc->aen_event_read_flag) {
560 spin_unlock(&gioc_lock);
561 return EPOLLIN | EPOLLRDNORM;
562 }
563 }
564 spin_unlock(&gioc_lock);
565 return 0;
566 }
567
568 /**
569 * _ctl_set_task_mid - assign an active smid to tm request
570 * @ioc: per adapter object
571 * @karg: (struct mpt3_ioctl_command)
572 * @tm_request: pointer to mf from user space
573 *
574 * Return: 0 when an smid if found, else fail.
575 * during failure, the reply frame is filled.
576 */
577 static int
_ctl_set_task_mid(struct MPT3SAS_ADAPTER * ioc,struct mpt3_ioctl_command * karg,Mpi2SCSITaskManagementRequest_t * tm_request)578 _ctl_set_task_mid(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command *karg,
579 Mpi2SCSITaskManagementRequest_t *tm_request)
580 {
581 bool found = false;
582 u16 smid;
583 u16 handle;
584 struct scsi_cmnd *scmd;
585 struct MPT3SAS_DEVICE *priv_data;
586 Mpi2SCSITaskManagementReply_t *tm_reply;
587 u32 sz;
588 u32 lun;
589 char *desc = NULL;
590
591 if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
592 desc = "abort_task";
593 else if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK)
594 desc = "query_task";
595 else
596 return 0;
597
598 lun = scsilun_to_int((struct scsi_lun *)tm_request->LUN);
599
600 handle = le16_to_cpu(tm_request->DevHandle);
601 for (smid = ioc->scsiio_depth; smid && !found; smid--) {
602 struct scsiio_tracker *st;
603 __le16 task_mid;
604
605 scmd = mpt3sas_scsih_scsi_lookup_get(ioc, smid);
606 if (!scmd)
607 continue;
608 if (lun != scmd->device->lun)
609 continue;
610 priv_data = scmd->device->hostdata;
611 if (priv_data->sas_target == NULL)
612 continue;
613 if (priv_data->sas_target->handle != handle)
614 continue;
615 st = scsi_cmd_priv(scmd);
616
617 /*
618 * If the given TaskMID from the user space is zero, then the
619 * first outstanding smid will be picked up. Otherwise,
620 * targeted smid will be the one.
621 */
622 task_mid = cpu_to_le16(st->smid);
623 if (!tm_request->TaskMID)
624 tm_request->TaskMID = task_mid;
625 found = tm_request->TaskMID == task_mid;
626 }
627
628 if (!found) {
629 dctlprintk(ioc,
630 ioc_info(ioc, "%s: handle(0x%04x), lun(%d), no active mid!!\n",
631 desc, le16_to_cpu(tm_request->DevHandle),
632 lun));
633 tm_reply = ioc->ctl_cmds.reply;
634 tm_reply->DevHandle = tm_request->DevHandle;
635 tm_reply->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
636 tm_reply->TaskType = tm_request->TaskType;
637 tm_reply->MsgLength = sizeof(Mpi2SCSITaskManagementReply_t)/4;
638 tm_reply->VP_ID = tm_request->VP_ID;
639 tm_reply->VF_ID = tm_request->VF_ID;
640 sz = min_t(u32, karg->max_reply_bytes, ioc->reply_sz);
641 if (copy_to_user(karg->reply_frame_buf_ptr, ioc->ctl_cmds.reply,
642 sz))
643 pr_err("failure at %s:%d/%s()!\n", __FILE__,
644 __LINE__, __func__);
645 return 1;
646 }
647
648 dctlprintk(ioc,
649 ioc_info(ioc, "%s: handle(0x%04x), lun(%d), task_mid(%d)\n",
650 desc, le16_to_cpu(tm_request->DevHandle), lun,
651 le16_to_cpu(tm_request->TaskMID)));
652 return 0;
653 }
654
655 /**
656 * _ctl_do_mpt_command - main handler for MPT3COMMAND opcode
657 * @ioc: per adapter object
658 * @karg: (struct mpt3_ioctl_command)
659 * @mf: pointer to mf in user space
660 */
661 static long
_ctl_do_mpt_command(struct MPT3SAS_ADAPTER * ioc,struct mpt3_ioctl_command karg,void __user * mf)662 _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
663 void __user *mf)
664 {
665 MPI2RequestHeader_t *mpi_request = NULL, *request;
666 MPI2DefaultReply_t *mpi_reply;
667 Mpi26NVMeEncapsulatedRequest_t *nvme_encap_request = NULL;
668 struct _pcie_device *pcie_device = NULL;
669 u16 smid;
670 unsigned long timeout;
671 u8 issue_reset;
672 u32 sz, sz_arg;
673 void *psge;
674 void *data_out = NULL;
675 dma_addr_t data_out_dma = 0;
676 size_t data_out_sz = 0;
677 void *data_in = NULL;
678 dma_addr_t data_in_dma = 0;
679 size_t data_in_sz = 0;
680 long ret;
681 u16 device_handle = MPT3SAS_INVALID_DEVICE_HANDLE;
682
683 issue_reset = 0;
684
685 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
686 ioc_err(ioc, "%s: ctl_cmd in use\n", __func__);
687 ret = -EAGAIN;
688 goto out;
689 }
690
691 ret = mpt3sas_wait_for_ioc(ioc, IOC_OPERATIONAL_WAIT_COUNT);
692 if (ret)
693 goto out;
694
695 mpi_request = kzalloc(ioc->request_sz, GFP_KERNEL);
696 if (!mpi_request) {
697 ioc_err(ioc, "%s: failed obtaining a memory for mpi_request\n",
698 __func__);
699 ret = -ENOMEM;
700 goto out;
701 }
702
703 /* Check for overflow and wraparound */
704 if (karg.data_sge_offset * 4 > ioc->request_sz ||
705 karg.data_sge_offset > (UINT_MAX / 4)) {
706 ret = -EINVAL;
707 goto out;
708 }
709
710 /* copy in request message frame from user */
711 if (copy_from_user(mpi_request, mf, karg.data_sge_offset*4)) {
712 pr_err("failure at %s:%d/%s()!\n", __FILE__, __LINE__,
713 __func__);
714 ret = -EFAULT;
715 goto out;
716 }
717
718 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
719 smid = mpt3sas_base_get_smid_hpr(ioc, ioc->ctl_cb_idx);
720 if (!smid) {
721 ioc_err(ioc, "%s: failed obtaining a smid\n", __func__);
722 ret = -EAGAIN;
723 goto out;
724 }
725 } else {
726 /* Use first reserved smid for passthrough ioctls */
727 smid = ioc->scsiio_depth - INTERNAL_SCSIIO_CMDS_COUNT + 1;
728 }
729
730 ret = 0;
731 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
732 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
733 request = mpt3sas_base_get_msg_frame(ioc, smid);
734 memset(request, 0, ioc->request_sz);
735 memcpy(request, mpi_request, karg.data_sge_offset*4);
736 ioc->ctl_cmds.smid = smid;
737 data_out_sz = karg.data_out_size;
738 data_in_sz = karg.data_in_size;
739
740 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
741 mpi_request->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
742 mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT ||
743 mpi_request->Function == MPI2_FUNCTION_SATA_PASSTHROUGH ||
744 mpi_request->Function == MPI2_FUNCTION_NVME_ENCAPSULATED) {
745
746 device_handle = le16_to_cpu(mpi_request->FunctionDependent1);
747 if (!device_handle || (device_handle >
748 ioc->facts.MaxDevHandle)) {
749 ret = -EINVAL;
750 mpt3sas_base_free_smid(ioc, smid);
751 goto out;
752 }
753 }
754
755 /* obtain dma-able memory for data transfer */
756 if (data_out_sz) /* WRITE */ {
757 data_out = dma_alloc_coherent(&ioc->pdev->dev, data_out_sz,
758 &data_out_dma, GFP_KERNEL);
759 if (!data_out) {
760 pr_err("failure at %s:%d/%s()!\n", __FILE__,
761 __LINE__, __func__);
762 ret = -ENOMEM;
763 mpt3sas_base_free_smid(ioc, smid);
764 goto out;
765 }
766 if (copy_from_user(data_out, karg.data_out_buf_ptr,
767 data_out_sz)) {
768 pr_err("failure at %s:%d/%s()!\n", __FILE__,
769 __LINE__, __func__);
770 ret = -EFAULT;
771 mpt3sas_base_free_smid(ioc, smid);
772 goto out;
773 }
774 }
775
776 if (data_in_sz) /* READ */ {
777 data_in = dma_alloc_coherent(&ioc->pdev->dev, data_in_sz,
778 &data_in_dma, GFP_KERNEL);
779 if (!data_in) {
780 pr_err("failure at %s:%d/%s()!\n", __FILE__,
781 __LINE__, __func__);
782 ret = -ENOMEM;
783 mpt3sas_base_free_smid(ioc, smid);
784 goto out;
785 }
786 }
787
788 psge = (void *)request + (karg.data_sge_offset*4);
789
790 /* send command to firmware */
791 _ctl_display_some_debug(ioc, smid, "ctl_request", NULL);
792
793 init_completion(&ioc->ctl_cmds.done);
794 switch (mpi_request->Function) {
795 case MPI2_FUNCTION_NVME_ENCAPSULATED:
796 {
797 nvme_encap_request = (Mpi26NVMeEncapsulatedRequest_t *)request;
798 if (!ioc->pcie_sg_lookup) {
799 dtmprintk(ioc, ioc_info(ioc,
800 "HBA doesn't support NVMe. Rejecting NVMe Encapsulated request.\n"
801 ));
802
803 if (ioc->logging_level & MPT_DEBUG_TM)
804 _debug_dump_mf(nvme_encap_request,
805 ioc->request_sz/4);
806 mpt3sas_base_free_smid(ioc, smid);
807 ret = -EINVAL;
808 goto out;
809 }
810 /*
811 * Get the Physical Address of the sense buffer.
812 * Use Error Response buffer address field to hold the sense
813 * buffer address.
814 * Clear the internal sense buffer, which will potentially hold
815 * the Completion Queue Entry on return, or 0 if no Entry.
816 * Build the PRPs and set direction bits.
817 * Send the request.
818 */
819 nvme_encap_request->ErrorResponseBaseAddress =
820 cpu_to_le64(ioc->sense_dma & 0xFFFFFFFF00000000UL);
821 nvme_encap_request->ErrorResponseBaseAddress |=
822 cpu_to_le64(le32_to_cpu(
823 mpt3sas_base_get_sense_buffer_dma(ioc, smid)));
824 nvme_encap_request->ErrorResponseAllocationLength =
825 cpu_to_le16(NVME_ERROR_RESPONSE_SIZE);
826 memset(ioc->ctl_cmds.sense, 0, NVME_ERROR_RESPONSE_SIZE);
827 ioc->build_nvme_prp(ioc, smid, nvme_encap_request,
828 data_out_dma, data_out_sz, data_in_dma, data_in_sz);
829 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
830 dtmprintk(ioc,
831 ioc_info(ioc, "handle(0x%04x): ioctl failed due to device removal in progress\n",
832 device_handle));
833 mpt3sas_base_free_smid(ioc, smid);
834 ret = -EINVAL;
835 goto out;
836 }
837 mpt3sas_base_put_smid_nvme_encap(ioc, smid);
838 break;
839 }
840 case MPI2_FUNCTION_SCSI_IO_REQUEST:
841 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
842 {
843 Mpi2SCSIIORequest_t *scsiio_request =
844 (Mpi2SCSIIORequest_t *)request;
845 scsiio_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
846 scsiio_request->SenseBufferLowAddress =
847 mpt3sas_base_get_sense_buffer_dma(ioc, smid);
848 memset(ioc->ctl_cmds.sense, 0, SCSI_SENSE_BUFFERSIZE);
849 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
850 dtmprintk(ioc,
851 ioc_info(ioc, "handle(0x%04x) :ioctl failed due to device removal in progress\n",
852 device_handle));
853 mpt3sas_base_free_smid(ioc, smid);
854 ret = -EINVAL;
855 goto out;
856 }
857 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
858 data_in_dma, data_in_sz);
859 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)
860 ioc->put_smid_scsi_io(ioc, smid, device_handle);
861 else
862 ioc->put_smid_default(ioc, smid);
863 break;
864 }
865 case MPI2_FUNCTION_SCSI_TASK_MGMT:
866 {
867 Mpi2SCSITaskManagementRequest_t *tm_request =
868 (Mpi2SCSITaskManagementRequest_t *)request;
869
870 dtmprintk(ioc,
871 ioc_info(ioc, "TASK_MGMT: handle(0x%04x), task_type(0x%02x)\n",
872 le16_to_cpu(tm_request->DevHandle),
873 tm_request->TaskType));
874 ioc->got_task_abort_from_ioctl = 1;
875 if (tm_request->TaskType ==
876 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK ||
877 tm_request->TaskType ==
878 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) {
879 if (_ctl_set_task_mid(ioc, &karg, tm_request)) {
880 mpt3sas_base_free_smid(ioc, smid);
881 ioc->got_task_abort_from_ioctl = 0;
882 goto out;
883 }
884 }
885 ioc->got_task_abort_from_ioctl = 0;
886
887 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
888 dtmprintk(ioc,
889 ioc_info(ioc, "handle(0x%04x) :ioctl failed due to device removal in progress\n",
890 device_handle));
891 mpt3sas_base_free_smid(ioc, smid);
892 ret = -EINVAL;
893 goto out;
894 }
895 mpt3sas_scsih_set_tm_flag(ioc, le16_to_cpu(
896 tm_request->DevHandle));
897 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
898 data_in_dma, data_in_sz);
899 ioc->put_smid_hi_priority(ioc, smid, 0);
900 break;
901 }
902 case MPI2_FUNCTION_SMP_PASSTHROUGH:
903 {
904 Mpi2SmpPassthroughRequest_t *smp_request =
905 (Mpi2SmpPassthroughRequest_t *)mpi_request;
906 u8 *data;
907
908 if (!ioc->multipath_on_hba) {
909 /* ioc determines which port to use */
910 smp_request->PhysicalPort = 0xFF;
911 }
912 if (smp_request->PassthroughFlags &
913 MPI2_SMP_PT_REQ_PT_FLAGS_IMMEDIATE)
914 data = (u8 *)&smp_request->SGL;
915 else {
916 if (unlikely(data_out == NULL)) {
917 pr_err("failure at %s:%d/%s()!\n",
918 __FILE__, __LINE__, __func__);
919 mpt3sas_base_free_smid(ioc, smid);
920 ret = -EINVAL;
921 goto out;
922 }
923 data = data_out;
924 }
925
926 if (data[1] == 0x91 && (data[10] == 1 || data[10] == 2)) {
927 ioc->ioc_link_reset_in_progress = 1;
928 ioc->ignore_loginfos = 1;
929 }
930 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
931 data_in_sz);
932 ioc->put_smid_default(ioc, smid);
933 break;
934 }
935 case MPI2_FUNCTION_SATA_PASSTHROUGH:
936 {
937 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
938 dtmprintk(ioc,
939 ioc_info(ioc, "handle(0x%04x) :ioctl failed due to device removal in progress\n",
940 device_handle));
941 mpt3sas_base_free_smid(ioc, smid);
942 ret = -EINVAL;
943 goto out;
944 }
945 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
946 data_in_sz);
947 ioc->put_smid_default(ioc, smid);
948 break;
949 }
950 case MPI2_FUNCTION_FW_DOWNLOAD:
951 case MPI2_FUNCTION_FW_UPLOAD:
952 {
953 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
954 data_in_sz);
955 ioc->put_smid_default(ioc, smid);
956 break;
957 }
958 case MPI2_FUNCTION_TOOLBOX:
959 {
960 Mpi2ToolboxCleanRequest_t *toolbox_request =
961 (Mpi2ToolboxCleanRequest_t *)mpi_request;
962
963 if ((toolbox_request->Tool == MPI2_TOOLBOX_DIAGNOSTIC_CLI_TOOL)
964 || (toolbox_request->Tool ==
965 MPI26_TOOLBOX_BACKEND_PCIE_LANE_MARGIN))
966 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
967 data_in_dma, data_in_sz);
968 else if (toolbox_request->Tool ==
969 MPI2_TOOLBOX_MEMORY_MOVE_TOOL) {
970 Mpi2ToolboxMemMoveRequest_t *mem_move_request =
971 (Mpi2ToolboxMemMoveRequest_t *)request;
972 Mpi2SGESimple64_t tmp, *src = NULL, *dst = NULL;
973
974 ioc->build_sg_mpi(ioc, psge, data_out_dma,
975 data_out_sz, data_in_dma, data_in_sz);
976 if (data_out_sz && !data_in_sz) {
977 dst =
978 (Mpi2SGESimple64_t *)&mem_move_request->SGL;
979 src = (void *)dst + ioc->sge_size;
980
981 memcpy(&tmp, src, ioc->sge_size);
982 memcpy(src, dst, ioc->sge_size);
983 memcpy(dst, &tmp, ioc->sge_size);
984 }
985 if (ioc->logging_level & MPT_DEBUG_TM) {
986 ioc_info(ioc,
987 "Mpi2ToolboxMemMoveRequest_t request msg\n");
988 _debug_dump_mf(mem_move_request,
989 ioc->request_sz/4);
990 }
991 } else
992 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
993 data_in_dma, data_in_sz);
994 ioc->put_smid_default(ioc, smid);
995 break;
996 }
997 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
998 {
999 Mpi2SasIoUnitControlRequest_t *sasiounit_request =
1000 (Mpi2SasIoUnitControlRequest_t *)mpi_request;
1001
1002 if (sasiounit_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET
1003 || sasiounit_request->Operation ==
1004 MPI2_SAS_OP_PHY_LINK_RESET) {
1005 ioc->ioc_link_reset_in_progress = 1;
1006 ioc->ignore_loginfos = 1;
1007 }
1008 /* drop to default case for posting the request */
1009 }
1010 fallthrough;
1011 default:
1012 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
1013 data_in_dma, data_in_sz);
1014 ioc->put_smid_default(ioc, smid);
1015 break;
1016 }
1017
1018 if (karg.timeout < MPT3_IOCTL_DEFAULT_TIMEOUT)
1019 timeout = MPT3_IOCTL_DEFAULT_TIMEOUT;
1020 else
1021 timeout = karg.timeout;
1022 wait_for_completion_timeout(&ioc->ctl_cmds.done, timeout*HZ);
1023 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
1024 Mpi2SCSITaskManagementRequest_t *tm_request =
1025 (Mpi2SCSITaskManagementRequest_t *)mpi_request;
1026 mpt3sas_scsih_clear_tm_flag(ioc, le16_to_cpu(
1027 tm_request->DevHandle));
1028 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
1029 } else if ((mpi_request->Function == MPI2_FUNCTION_SMP_PASSTHROUGH ||
1030 mpi_request->Function == MPI2_FUNCTION_SAS_IO_UNIT_CONTROL) &&
1031 ioc->ioc_link_reset_in_progress) {
1032 ioc->ioc_link_reset_in_progress = 0;
1033 ioc->ignore_loginfos = 0;
1034 }
1035 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1036 mpt3sas_check_cmd_timeout(ioc,
1037 ioc->ctl_cmds.status, mpi_request,
1038 karg.data_sge_offset, issue_reset);
1039 goto issue_host_reset;
1040 }
1041
1042 mpi_reply = ioc->ctl_cmds.reply;
1043
1044 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_TASK_MGMT &&
1045 (ioc->logging_level & MPT_DEBUG_TM)) {
1046 Mpi2SCSITaskManagementReply_t *tm_reply =
1047 (Mpi2SCSITaskManagementReply_t *)mpi_reply;
1048
1049 ioc_info(ioc, "TASK_MGMT: IOCStatus(0x%04x), IOCLogInfo(0x%08x), TerminationCount(0x%08x)\n",
1050 le16_to_cpu(tm_reply->IOCStatus),
1051 le32_to_cpu(tm_reply->IOCLogInfo),
1052 le32_to_cpu(tm_reply->TerminationCount));
1053 }
1054
1055 /* copy out xdata to user */
1056 if (data_in_sz) {
1057 if (copy_to_user(karg.data_in_buf_ptr, data_in,
1058 data_in_sz)) {
1059 pr_err("failure at %s:%d/%s()!\n", __FILE__,
1060 __LINE__, __func__);
1061 ret = -ENODATA;
1062 goto out;
1063 }
1064 }
1065
1066 /* copy out reply message frame to user */
1067 if (karg.max_reply_bytes) {
1068 sz = min_t(u32, karg.max_reply_bytes, ioc->reply_sz);
1069 if (copy_to_user(karg.reply_frame_buf_ptr, ioc->ctl_cmds.reply,
1070 sz)) {
1071 pr_err("failure at %s:%d/%s()!\n", __FILE__,
1072 __LINE__, __func__);
1073 ret = -ENODATA;
1074 goto out;
1075 }
1076 }
1077
1078 /* copy out sense/NVMe Error Response to user */
1079 if (karg.max_sense_bytes && (mpi_request->Function ==
1080 MPI2_FUNCTION_SCSI_IO_REQUEST || mpi_request->Function ==
1081 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH || mpi_request->Function ==
1082 MPI2_FUNCTION_NVME_ENCAPSULATED)) {
1083 if (karg.sense_data_ptr == NULL) {
1084 ioc_info(ioc, "Response buffer provided by application is NULL; Response data will not be returned\n");
1085 goto out;
1086 }
1087 sz_arg = (mpi_request->Function ==
1088 MPI2_FUNCTION_NVME_ENCAPSULATED) ? NVME_ERROR_RESPONSE_SIZE :
1089 SCSI_SENSE_BUFFERSIZE;
1090 sz = min_t(u32, karg.max_sense_bytes, sz_arg);
1091 if (copy_to_user(karg.sense_data_ptr, ioc->ctl_cmds.sense,
1092 sz)) {
1093 pr_err("failure at %s:%d/%s()!\n", __FILE__,
1094 __LINE__, __func__);
1095 ret = -ENODATA;
1096 goto out;
1097 }
1098 }
1099
1100 issue_host_reset:
1101 if (issue_reset) {
1102 ret = -ENODATA;
1103 if ((mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
1104 mpi_request->Function ==
1105 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
1106 mpi_request->Function == MPI2_FUNCTION_SATA_PASSTHROUGH)) {
1107 ioc_info(ioc, "issue target reset: handle = (0x%04x)\n",
1108 le16_to_cpu(mpi_request->FunctionDependent1));
1109 mpt3sas_halt_firmware(ioc);
1110 pcie_device = mpt3sas_get_pdev_by_handle(ioc,
1111 le16_to_cpu(mpi_request->FunctionDependent1));
1112 if (pcie_device && (!ioc->tm_custom_handling) &&
1113 (!(mpt3sas_scsih_is_pcie_scsi_device(
1114 pcie_device->device_info))))
1115 mpt3sas_scsih_issue_locked_tm(ioc,
1116 le16_to_cpu(mpi_request->FunctionDependent1),
1117 0, 0, 0,
1118 MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
1119 0, pcie_device->reset_timeout,
1120 MPI26_SCSITASKMGMT_MSGFLAGS_PROTOCOL_LVL_RST_PCIE);
1121 else
1122 mpt3sas_scsih_issue_locked_tm(ioc,
1123 le16_to_cpu(mpi_request->FunctionDependent1),
1124 0, 0, 0,
1125 MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
1126 0, 30, MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET);
1127 } else
1128 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1129 }
1130
1131 out:
1132 if (pcie_device)
1133 pcie_device_put(pcie_device);
1134
1135 /* free memory associated with sg buffers */
1136 if (data_in)
1137 dma_free_coherent(&ioc->pdev->dev, data_in_sz, data_in,
1138 data_in_dma);
1139
1140 if (data_out)
1141 dma_free_coherent(&ioc->pdev->dev, data_out_sz, data_out,
1142 data_out_dma);
1143
1144 kfree(mpi_request);
1145 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1146 return ret;
1147 }
1148
1149 /**
1150 * _ctl_getiocinfo - main handler for MPT3IOCINFO opcode
1151 * @ioc: per adapter object
1152 * @arg: user space buffer containing ioctl content
1153 */
1154 static long
_ctl_getiocinfo(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1155 _ctl_getiocinfo(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1156 {
1157 struct mpt3_ioctl_iocinfo karg;
1158
1159 dctlprintk(ioc, ioc_info(ioc, "%s: enter\n",
1160 __func__));
1161
1162 memset(&karg, 0 , sizeof(karg));
1163 if (ioc->pfacts)
1164 karg.port_number = ioc->pfacts[0].PortNumber;
1165 karg.hw_rev = ioc->pdev->revision;
1166 karg.pci_id = ioc->pdev->device;
1167 karg.subsystem_device = ioc->pdev->subsystem_device;
1168 karg.subsystem_vendor = ioc->pdev->subsystem_vendor;
1169 karg.pci_information.u.bits.bus = ioc->pdev->bus->number;
1170 karg.pci_information.u.bits.device = PCI_SLOT(ioc->pdev->devfn);
1171 karg.pci_information.u.bits.function = PCI_FUNC(ioc->pdev->devfn);
1172 karg.pci_information.segment_id = pci_domain_nr(ioc->pdev->bus);
1173 karg.firmware_version = ioc->facts.FWVersion.Word;
1174 strcpy(karg.driver_version, ioc->driver_name);
1175 strcat(karg.driver_version, "-");
1176 switch (ioc->hba_mpi_version_belonged) {
1177 case MPI2_VERSION:
1178 if (ioc->is_warpdrive)
1179 karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2_SSS6200;
1180 else
1181 karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2;
1182 strcat(karg.driver_version, MPT2SAS_DRIVER_VERSION);
1183 break;
1184 case MPI25_VERSION:
1185 case MPI26_VERSION:
1186 if (ioc->is_gen35_ioc)
1187 karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS35;
1188 else
1189 karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS3;
1190 strcat(karg.driver_version, MPT3SAS_DRIVER_VERSION);
1191 break;
1192 }
1193 karg.bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
1194
1195 if (copy_to_user(arg, &karg, sizeof(karg))) {
1196 pr_err("failure at %s:%d/%s()!\n",
1197 __FILE__, __LINE__, __func__);
1198 return -EFAULT;
1199 }
1200 return 0;
1201 }
1202
1203 /**
1204 * _ctl_eventquery - main handler for MPT3EVENTQUERY opcode
1205 * @ioc: per adapter object
1206 * @arg: user space buffer containing ioctl content
1207 */
1208 static long
_ctl_eventquery(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1209 _ctl_eventquery(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1210 {
1211 struct mpt3_ioctl_eventquery karg;
1212
1213 if (copy_from_user(&karg, arg, sizeof(karg))) {
1214 pr_err("failure at %s:%d/%s()!\n",
1215 __FILE__, __LINE__, __func__);
1216 return -EFAULT;
1217 }
1218
1219 dctlprintk(ioc, ioc_info(ioc, "%s: enter\n",
1220 __func__));
1221
1222 karg.event_entries = MPT3SAS_CTL_EVENT_LOG_SIZE;
1223 memcpy(karg.event_types, ioc->event_type,
1224 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1225
1226 if (copy_to_user(arg, &karg, sizeof(karg))) {
1227 pr_err("failure at %s:%d/%s()!\n",
1228 __FILE__, __LINE__, __func__);
1229 return -EFAULT;
1230 }
1231 return 0;
1232 }
1233
1234 /**
1235 * _ctl_eventenable - main handler for MPT3EVENTENABLE opcode
1236 * @ioc: per adapter object
1237 * @arg: user space buffer containing ioctl content
1238 */
1239 static long
_ctl_eventenable(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1240 _ctl_eventenable(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1241 {
1242 struct mpt3_ioctl_eventenable karg;
1243
1244 if (copy_from_user(&karg, arg, sizeof(karg))) {
1245 pr_err("failure at %s:%d/%s()!\n",
1246 __FILE__, __LINE__, __func__);
1247 return -EFAULT;
1248 }
1249
1250 dctlprintk(ioc, ioc_info(ioc, "%s: enter\n",
1251 __func__));
1252
1253 memcpy(ioc->event_type, karg.event_types,
1254 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1255 mpt3sas_base_validate_event_type(ioc, ioc->event_type);
1256
1257 if (ioc->event_log)
1258 return 0;
1259 /* initialize event_log */
1260 ioc->event_context = 0;
1261 ioc->aen_event_read_flag = 0;
1262 ioc->event_log = kcalloc(MPT3SAS_CTL_EVENT_LOG_SIZE,
1263 sizeof(struct MPT3_IOCTL_EVENTS), GFP_KERNEL);
1264 if (!ioc->event_log) {
1265 pr_err("failure at %s:%d/%s()!\n",
1266 __FILE__, __LINE__, __func__);
1267 return -ENOMEM;
1268 }
1269 return 0;
1270 }
1271
1272 /**
1273 * _ctl_eventreport - main handler for MPT3EVENTREPORT opcode
1274 * @ioc: per adapter object
1275 * @arg: user space buffer containing ioctl content
1276 */
1277 static long
_ctl_eventreport(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1278 _ctl_eventreport(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1279 {
1280 struct mpt3_ioctl_eventreport karg;
1281 u32 number_bytes, max_events, max;
1282 struct mpt3_ioctl_eventreport __user *uarg = arg;
1283
1284 if (copy_from_user(&karg, arg, sizeof(karg))) {
1285 pr_err("failure at %s:%d/%s()!\n",
1286 __FILE__, __LINE__, __func__);
1287 return -EFAULT;
1288 }
1289
1290 dctlprintk(ioc, ioc_info(ioc, "%s: enter\n",
1291 __func__));
1292
1293 number_bytes = karg.hdr.max_data_size -
1294 sizeof(struct mpt3_ioctl_header);
1295 max_events = number_bytes/sizeof(struct MPT3_IOCTL_EVENTS);
1296 max = min_t(u32, MPT3SAS_CTL_EVENT_LOG_SIZE, max_events);
1297
1298 /* If fewer than 1 event is requested, there must have
1299 * been some type of error.
1300 */
1301 if (!max || !ioc->event_log)
1302 return -ENODATA;
1303
1304 number_bytes = max * sizeof(struct MPT3_IOCTL_EVENTS);
1305 if (copy_to_user(uarg->event_data, ioc->event_log, number_bytes)) {
1306 pr_err("failure at %s:%d/%s()!\n",
1307 __FILE__, __LINE__, __func__);
1308 return -EFAULT;
1309 }
1310
1311 /* reset flag so SIGIO can restart */
1312 ioc->aen_event_read_flag = 0;
1313 return 0;
1314 }
1315
1316 /**
1317 * _ctl_do_reset - main handler for MPT3HARDRESET opcode
1318 * @ioc: per adapter object
1319 * @arg: user space buffer containing ioctl content
1320 */
1321 static long
_ctl_do_reset(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1322 _ctl_do_reset(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1323 {
1324 struct mpt3_ioctl_diag_reset karg;
1325 int retval;
1326
1327 if (copy_from_user(&karg, arg, sizeof(karg))) {
1328 pr_err("failure at %s:%d/%s()!\n",
1329 __FILE__, __LINE__, __func__);
1330 return -EFAULT;
1331 }
1332
1333 if (ioc->shost_recovery || ioc->pci_error_recovery ||
1334 ioc->is_driver_loading)
1335 return -EAGAIN;
1336
1337 dctlprintk(ioc, ioc_info(ioc, "%s: enter\n",
1338 __func__));
1339
1340 ioc->reset_from_user = 1;
1341 retval = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1342 ioc_info(ioc,
1343 "Ioctl: host reset: %s\n", ((!retval) ? "SUCCESS" : "FAILED"));
1344 return 0;
1345 }
1346
1347 /**
1348 * _ctl_btdh_search_sas_device - searching for sas device
1349 * @ioc: per adapter object
1350 * @btdh: btdh ioctl payload
1351 */
1352 static int
_ctl_btdh_search_sas_device(struct MPT3SAS_ADAPTER * ioc,struct mpt3_ioctl_btdh_mapping * btdh)1353 _ctl_btdh_search_sas_device(struct MPT3SAS_ADAPTER *ioc,
1354 struct mpt3_ioctl_btdh_mapping *btdh)
1355 {
1356 struct _sas_device *sas_device;
1357 unsigned long flags;
1358 int rc = 0;
1359
1360 if (list_empty(&ioc->sas_device_list))
1361 return rc;
1362
1363 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1364 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
1365 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1366 btdh->handle == sas_device->handle) {
1367 btdh->bus = sas_device->channel;
1368 btdh->id = sas_device->id;
1369 rc = 1;
1370 goto out;
1371 } else if (btdh->bus == sas_device->channel && btdh->id ==
1372 sas_device->id && btdh->handle == 0xFFFF) {
1373 btdh->handle = sas_device->handle;
1374 rc = 1;
1375 goto out;
1376 }
1377 }
1378 out:
1379 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1380 return rc;
1381 }
1382
1383 /**
1384 * _ctl_btdh_search_pcie_device - searching for pcie device
1385 * @ioc: per adapter object
1386 * @btdh: btdh ioctl payload
1387 */
1388 static int
_ctl_btdh_search_pcie_device(struct MPT3SAS_ADAPTER * ioc,struct mpt3_ioctl_btdh_mapping * btdh)1389 _ctl_btdh_search_pcie_device(struct MPT3SAS_ADAPTER *ioc,
1390 struct mpt3_ioctl_btdh_mapping *btdh)
1391 {
1392 struct _pcie_device *pcie_device;
1393 unsigned long flags;
1394 int rc = 0;
1395
1396 if (list_empty(&ioc->pcie_device_list))
1397 return rc;
1398
1399 spin_lock_irqsave(&ioc->pcie_device_lock, flags);
1400 list_for_each_entry(pcie_device, &ioc->pcie_device_list, list) {
1401 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1402 btdh->handle == pcie_device->handle) {
1403 btdh->bus = pcie_device->channel;
1404 btdh->id = pcie_device->id;
1405 rc = 1;
1406 goto out;
1407 } else if (btdh->bus == pcie_device->channel && btdh->id ==
1408 pcie_device->id && btdh->handle == 0xFFFF) {
1409 btdh->handle = pcie_device->handle;
1410 rc = 1;
1411 goto out;
1412 }
1413 }
1414 out:
1415 spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
1416 return rc;
1417 }
1418
1419 /**
1420 * _ctl_btdh_search_raid_device - searching for raid device
1421 * @ioc: per adapter object
1422 * @btdh: btdh ioctl payload
1423 */
1424 static int
_ctl_btdh_search_raid_device(struct MPT3SAS_ADAPTER * ioc,struct mpt3_ioctl_btdh_mapping * btdh)1425 _ctl_btdh_search_raid_device(struct MPT3SAS_ADAPTER *ioc,
1426 struct mpt3_ioctl_btdh_mapping *btdh)
1427 {
1428 struct _raid_device *raid_device;
1429 unsigned long flags;
1430 int rc = 0;
1431
1432 if (list_empty(&ioc->raid_device_list))
1433 return rc;
1434
1435 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1436 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
1437 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1438 btdh->handle == raid_device->handle) {
1439 btdh->bus = raid_device->channel;
1440 btdh->id = raid_device->id;
1441 rc = 1;
1442 goto out;
1443 } else if (btdh->bus == raid_device->channel && btdh->id ==
1444 raid_device->id && btdh->handle == 0xFFFF) {
1445 btdh->handle = raid_device->handle;
1446 rc = 1;
1447 goto out;
1448 }
1449 }
1450 out:
1451 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1452 return rc;
1453 }
1454
1455 /**
1456 * _ctl_btdh_mapping - main handler for MPT3BTDHMAPPING opcode
1457 * @ioc: per adapter object
1458 * @arg: user space buffer containing ioctl content
1459 */
1460 static long
_ctl_btdh_mapping(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1461 _ctl_btdh_mapping(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1462 {
1463 struct mpt3_ioctl_btdh_mapping karg;
1464 int rc;
1465
1466 if (copy_from_user(&karg, arg, sizeof(karg))) {
1467 pr_err("failure at %s:%d/%s()!\n",
1468 __FILE__, __LINE__, __func__);
1469 return -EFAULT;
1470 }
1471
1472 dctlprintk(ioc, ioc_info(ioc, "%s\n",
1473 __func__));
1474
1475 rc = _ctl_btdh_search_sas_device(ioc, &karg);
1476 if (!rc)
1477 rc = _ctl_btdh_search_pcie_device(ioc, &karg);
1478 if (!rc)
1479 _ctl_btdh_search_raid_device(ioc, &karg);
1480
1481 if (copy_to_user(arg, &karg, sizeof(karg))) {
1482 pr_err("failure at %s:%d/%s()!\n",
1483 __FILE__, __LINE__, __func__);
1484 return -EFAULT;
1485 }
1486 return 0;
1487 }
1488
1489 /**
1490 * _ctl_diag_capability - return diag buffer capability
1491 * @ioc: per adapter object
1492 * @buffer_type: specifies either TRACE, SNAPSHOT, or EXTENDED
1493 *
1494 * returns 1 when diag buffer support is enabled in firmware
1495 */
1496 static u8
_ctl_diag_capability(struct MPT3SAS_ADAPTER * ioc,u8 buffer_type)1497 _ctl_diag_capability(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type)
1498 {
1499 u8 rc = 0;
1500
1501 switch (buffer_type) {
1502 case MPI2_DIAG_BUF_TYPE_TRACE:
1503 if (ioc->facts.IOCCapabilities &
1504 MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER)
1505 rc = 1;
1506 break;
1507 case MPI2_DIAG_BUF_TYPE_SNAPSHOT:
1508 if (ioc->facts.IOCCapabilities &
1509 MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER)
1510 rc = 1;
1511 break;
1512 case MPI2_DIAG_BUF_TYPE_EXTENDED:
1513 if (ioc->facts.IOCCapabilities &
1514 MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER)
1515 rc = 1;
1516 }
1517
1518 return rc;
1519 }
1520
1521 /**
1522 * _ctl_diag_get_bufftype - return diag buffer type
1523 * either TRACE, SNAPSHOT, or EXTENDED
1524 * @ioc: per adapter object
1525 * @unique_id: specifies the unique_id for the buffer
1526 *
1527 * returns MPT3_DIAG_UID_NOT_FOUND if the id not found
1528 */
1529 static u8
_ctl_diag_get_bufftype(struct MPT3SAS_ADAPTER * ioc,u32 unique_id)1530 _ctl_diag_get_bufftype(struct MPT3SAS_ADAPTER *ioc, u32 unique_id)
1531 {
1532 u8 index;
1533
1534 for (index = 0; index < MPI2_DIAG_BUF_TYPE_COUNT; index++) {
1535 if (ioc->unique_id[index] == unique_id)
1536 return index;
1537 }
1538
1539 return MPT3_DIAG_UID_NOT_FOUND;
1540 }
1541
1542 /**
1543 * _ctl_diag_register_2 - wrapper for registering diag buffer support
1544 * @ioc: per adapter object
1545 * @diag_register: the diag_register struct passed in from user space
1546 *
1547 */
1548 static long
_ctl_diag_register_2(struct MPT3SAS_ADAPTER * ioc,struct mpt3_diag_register * diag_register)1549 _ctl_diag_register_2(struct MPT3SAS_ADAPTER *ioc,
1550 struct mpt3_diag_register *diag_register)
1551 {
1552 int rc, i;
1553 void *request_data = NULL;
1554 dma_addr_t request_data_dma;
1555 u32 request_data_sz = 0;
1556 Mpi2DiagBufferPostRequest_t *mpi_request;
1557 Mpi2DiagBufferPostReply_t *mpi_reply;
1558 u8 buffer_type;
1559 u16 smid;
1560 u16 ioc_status;
1561 u32 ioc_state;
1562 u8 issue_reset = 0;
1563
1564 dctlprintk(ioc, ioc_info(ioc, "%s\n",
1565 __func__));
1566
1567 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1568 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1569 ioc_err(ioc, "%s: failed due to ioc not operational\n",
1570 __func__);
1571 rc = -EAGAIN;
1572 goto out;
1573 }
1574
1575 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
1576 ioc_err(ioc, "%s: ctl_cmd in use\n", __func__);
1577 rc = -EAGAIN;
1578 goto out;
1579 }
1580
1581 buffer_type = diag_register->buffer_type;
1582 if (!_ctl_diag_capability(ioc, buffer_type)) {
1583 ioc_err(ioc, "%s: doesn't have capability for buffer_type(0x%02x)\n",
1584 __func__, buffer_type);
1585 return -EPERM;
1586 }
1587
1588 if (diag_register->unique_id == 0) {
1589 ioc_err(ioc,
1590 "%s: Invalid UID(0x%08x), buffer_type(0x%02x)\n", __func__,
1591 diag_register->unique_id, buffer_type);
1592 return -EINVAL;
1593 }
1594
1595 if ((ioc->diag_buffer_status[buffer_type] &
1596 MPT3_DIAG_BUFFER_IS_APP_OWNED) &&
1597 !(ioc->diag_buffer_status[buffer_type] &
1598 MPT3_DIAG_BUFFER_IS_RELEASED)) {
1599 ioc_err(ioc,
1600 "%s: buffer_type(0x%02x) is already registered by application with UID(0x%08x)\n",
1601 __func__, buffer_type, ioc->unique_id[buffer_type]);
1602 return -EINVAL;
1603 }
1604
1605 if (ioc->diag_buffer_status[buffer_type] &
1606 MPT3_DIAG_BUFFER_IS_REGISTERED) {
1607 /*
1608 * If driver posts buffer initially, then an application wants
1609 * to Register that buffer (own it) without Releasing first,
1610 * the application Register command MUST have the same buffer
1611 * type and size in the Register command (obtained from the
1612 * Query command). Otherwise that Register command will be
1613 * failed. If the application has released the buffer but wants
1614 * to re-register it, it should be allowed as long as the
1615 * Unique-Id/Size match.
1616 */
1617
1618 if (ioc->unique_id[buffer_type] == MPT3DIAGBUFFUNIQUEID &&
1619 ioc->diag_buffer_sz[buffer_type] ==
1620 diag_register->requested_buffer_size) {
1621
1622 if (!(ioc->diag_buffer_status[buffer_type] &
1623 MPT3_DIAG_BUFFER_IS_RELEASED)) {
1624 dctlprintk(ioc, ioc_info(ioc,
1625 "%s: diag_buffer (%d) ownership changed. old-ID(0x%08x), new-ID(0x%08x)\n",
1626 __func__, buffer_type,
1627 ioc->unique_id[buffer_type],
1628 diag_register->unique_id));
1629
1630 /*
1631 * Application wants to own the buffer with
1632 * the same size.
1633 */
1634 ioc->unique_id[buffer_type] =
1635 diag_register->unique_id;
1636 rc = 0; /* success */
1637 goto out;
1638 }
1639 } else if (ioc->unique_id[buffer_type] !=
1640 MPT3DIAGBUFFUNIQUEID) {
1641 if (ioc->unique_id[buffer_type] !=
1642 diag_register->unique_id ||
1643 ioc->diag_buffer_sz[buffer_type] !=
1644 diag_register->requested_buffer_size ||
1645 !(ioc->diag_buffer_status[buffer_type] &
1646 MPT3_DIAG_BUFFER_IS_RELEASED)) {
1647 ioc_err(ioc,
1648 "%s: already has a registered buffer for buffer_type(0x%02x)\n",
1649 __func__, buffer_type);
1650 return -EINVAL;
1651 }
1652 } else {
1653 ioc_err(ioc, "%s: already has a registered buffer for buffer_type(0x%02x)\n",
1654 __func__, buffer_type);
1655 return -EINVAL;
1656 }
1657 } else if (ioc->diag_buffer_status[buffer_type] &
1658 MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED) {
1659
1660 if (ioc->unique_id[buffer_type] != MPT3DIAGBUFFUNIQUEID ||
1661 ioc->diag_buffer_sz[buffer_type] !=
1662 diag_register->requested_buffer_size) {
1663
1664 ioc_err(ioc,
1665 "%s: already a buffer is allocated for buffer_type(0x%02x) of size %d bytes, so please try registering again with same size\n",
1666 __func__, buffer_type,
1667 ioc->diag_buffer_sz[buffer_type]);
1668 return -EINVAL;
1669 }
1670 }
1671
1672 if (diag_register->requested_buffer_size % 4) {
1673 ioc_err(ioc, "%s: the requested_buffer_size is not 4 byte aligned\n",
1674 __func__);
1675 return -EINVAL;
1676 }
1677
1678 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1679 if (!smid) {
1680 ioc_err(ioc, "%s: failed obtaining a smid\n", __func__);
1681 rc = -EAGAIN;
1682 goto out;
1683 }
1684
1685 rc = 0;
1686 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
1687 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1688 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1689 ioc->ctl_cmds.smid = smid;
1690
1691 request_data = ioc->diag_buffer[buffer_type];
1692 request_data_sz = diag_register->requested_buffer_size;
1693 ioc->unique_id[buffer_type] = diag_register->unique_id;
1694 /* Reset ioc variables used for additional query commands */
1695 ioc->reset_from_user = 0;
1696 memset(&ioc->htb_rel, 0, sizeof(struct htb_rel_query));
1697 ioc->diag_buffer_status[buffer_type] &=
1698 MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED;
1699 memcpy(ioc->product_specific[buffer_type],
1700 diag_register->product_specific, MPT3_PRODUCT_SPECIFIC_DWORDS);
1701 ioc->diagnostic_flags[buffer_type] = diag_register->diagnostic_flags;
1702
1703 if (request_data) {
1704 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1705 if (request_data_sz != ioc->diag_buffer_sz[buffer_type]) {
1706 dma_free_coherent(&ioc->pdev->dev,
1707 ioc->diag_buffer_sz[buffer_type],
1708 request_data, request_data_dma);
1709 request_data = NULL;
1710 }
1711 }
1712
1713 if (request_data == NULL) {
1714 ioc->diag_buffer_sz[buffer_type] = 0;
1715 ioc->diag_buffer_dma[buffer_type] = 0;
1716 request_data = dma_alloc_coherent(&ioc->pdev->dev,
1717 request_data_sz, &request_data_dma, GFP_KERNEL);
1718 if (request_data == NULL) {
1719 ioc_err(ioc, "%s: failed allocating memory for diag buffers, requested size(%d)\n",
1720 __func__, request_data_sz);
1721 mpt3sas_base_free_smid(ioc, smid);
1722 rc = -ENOMEM;
1723 goto out;
1724 }
1725 ioc->diag_buffer[buffer_type] = request_data;
1726 ioc->diag_buffer_sz[buffer_type] = request_data_sz;
1727 ioc->diag_buffer_dma[buffer_type] = request_data_dma;
1728 }
1729
1730 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
1731 mpi_request->BufferType = diag_register->buffer_type;
1732 mpi_request->Flags = cpu_to_le32(diag_register->diagnostic_flags);
1733 mpi_request->BufferAddress = cpu_to_le64(request_data_dma);
1734 mpi_request->BufferLength = cpu_to_le32(request_data_sz);
1735 mpi_request->VF_ID = 0; /* TODO */
1736 mpi_request->VP_ID = 0;
1737
1738 dctlprintk(ioc,
1739 ioc_info(ioc, "%s: diag_buffer(0x%p), dma(0x%llx), sz(%d)\n",
1740 __func__, request_data,
1741 (unsigned long long)request_data_dma,
1742 le32_to_cpu(mpi_request->BufferLength)));
1743
1744 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
1745 mpi_request->ProductSpecific[i] =
1746 cpu_to_le32(ioc->product_specific[buffer_type][i]);
1747
1748 init_completion(&ioc->ctl_cmds.done);
1749 ioc->put_smid_default(ioc, smid);
1750 wait_for_completion_timeout(&ioc->ctl_cmds.done,
1751 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
1752
1753 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1754 mpt3sas_check_cmd_timeout(ioc,
1755 ioc->ctl_cmds.status, mpi_request,
1756 sizeof(Mpi2DiagBufferPostRequest_t)/4, issue_reset);
1757 goto issue_host_reset;
1758 }
1759
1760 /* process the completed Reply Message Frame */
1761 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
1762 ioc_err(ioc, "%s: no reply message\n", __func__);
1763 rc = -EFAULT;
1764 goto out;
1765 }
1766
1767 mpi_reply = ioc->ctl_cmds.reply;
1768 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1769
1770 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1771 ioc->diag_buffer_status[buffer_type] |=
1772 MPT3_DIAG_BUFFER_IS_REGISTERED;
1773 dctlprintk(ioc, ioc_info(ioc, "%s: success\n", __func__));
1774 } else {
1775 ioc_info(ioc, "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
1776 __func__,
1777 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
1778 rc = -EFAULT;
1779 }
1780
1781 issue_host_reset:
1782 if (issue_reset)
1783 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1784
1785 out:
1786
1787 if (rc && request_data) {
1788 dma_free_coherent(&ioc->pdev->dev, request_data_sz,
1789 request_data, request_data_dma);
1790 ioc->diag_buffer_status[buffer_type] &=
1791 ~MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED;
1792 }
1793
1794 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1795 return rc;
1796 }
1797
1798 /**
1799 * mpt3sas_enable_diag_buffer - enabling diag_buffers support driver load time
1800 * @ioc: per adapter object
1801 * @bits_to_register: bitwise field where trace is bit 0, and snapshot is bit 1
1802 *
1803 * This is called when command line option diag_buffer_enable is enabled
1804 * at driver load time.
1805 */
1806 void
mpt3sas_enable_diag_buffer(struct MPT3SAS_ADAPTER * ioc,u8 bits_to_register)1807 mpt3sas_enable_diag_buffer(struct MPT3SAS_ADAPTER *ioc, u8 bits_to_register)
1808 {
1809 struct mpt3_diag_register diag_register;
1810 u32 ret_val;
1811 u32 trace_buff_size = ioc->manu_pg11.HostTraceBufferMaxSizeKB<<10;
1812 u32 min_trace_buff_size = 0;
1813 u32 decr_trace_buff_size = 0;
1814
1815 memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
1816
1817 if (bits_to_register & 1) {
1818 ioc_info(ioc, "registering trace buffer support\n");
1819 ioc->diag_trigger_master.MasterData =
1820 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
1821 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
1822 diag_register.unique_id =
1823 (ioc->hba_mpi_version_belonged == MPI2_VERSION) ?
1824 (MPT2DIAGBUFFUNIQUEID):(MPT3DIAGBUFFUNIQUEID);
1825
1826 if (trace_buff_size != 0) {
1827 diag_register.requested_buffer_size = trace_buff_size;
1828 min_trace_buff_size =
1829 ioc->manu_pg11.HostTraceBufferMinSizeKB<<10;
1830 decr_trace_buff_size =
1831 ioc->manu_pg11.HostTraceBufferDecrementSizeKB<<10;
1832
1833 if (min_trace_buff_size > trace_buff_size) {
1834 /* The buff size is not set correctly */
1835 ioc_err(ioc,
1836 "Min Trace Buff size (%d KB) greater than Max Trace Buff size (%d KB)\n",
1837 min_trace_buff_size>>10,
1838 trace_buff_size>>10);
1839 ioc_err(ioc,
1840 "Using zero Min Trace Buff Size\n");
1841 min_trace_buff_size = 0;
1842 }
1843
1844 if (decr_trace_buff_size == 0) {
1845 /*
1846 * retry the min size if decrement
1847 * is not available.
1848 */
1849 decr_trace_buff_size =
1850 trace_buff_size - min_trace_buff_size;
1851 }
1852 } else {
1853 /* register for 2MB buffers */
1854 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1855 }
1856
1857 do {
1858 ret_val = _ctl_diag_register_2(ioc, &diag_register);
1859
1860 if (ret_val == -ENOMEM && min_trace_buff_size &&
1861 (trace_buff_size - decr_trace_buff_size) >=
1862 min_trace_buff_size) {
1863 /* adjust the buffer size */
1864 trace_buff_size -= decr_trace_buff_size;
1865 diag_register.requested_buffer_size =
1866 trace_buff_size;
1867 } else
1868 break;
1869 } while (true);
1870
1871 if (ret_val == -ENOMEM)
1872 ioc_err(ioc,
1873 "Cannot allocate trace buffer memory. Last memory tried = %d KB\n",
1874 diag_register.requested_buffer_size>>10);
1875 else if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE]
1876 & MPT3_DIAG_BUFFER_IS_REGISTERED) {
1877 ioc_err(ioc, "Trace buffer memory %d KB allocated\n",
1878 diag_register.requested_buffer_size>>10);
1879 if (ioc->hba_mpi_version_belonged != MPI2_VERSION)
1880 ioc->diag_buffer_status[
1881 MPI2_DIAG_BUF_TYPE_TRACE] |=
1882 MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED;
1883 }
1884 }
1885
1886 if (bits_to_register & 2) {
1887 ioc_info(ioc, "registering snapshot buffer support\n");
1888 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_SNAPSHOT;
1889 /* register for 2MB buffers */
1890 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1891 diag_register.unique_id = 0x7075901;
1892 _ctl_diag_register_2(ioc, &diag_register);
1893 }
1894
1895 if (bits_to_register & 4) {
1896 ioc_info(ioc, "registering extended buffer support\n");
1897 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_EXTENDED;
1898 /* register for 2MB buffers */
1899 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1900 diag_register.unique_id = 0x7075901;
1901 _ctl_diag_register_2(ioc, &diag_register);
1902 }
1903 }
1904
1905 /**
1906 * _ctl_diag_register - application register with driver
1907 * @ioc: per adapter object
1908 * @arg: user space buffer containing ioctl content
1909 *
1910 * This will allow the driver to setup any required buffers that will be
1911 * needed by firmware to communicate with the driver.
1912 */
1913 static long
_ctl_diag_register(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1914 _ctl_diag_register(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1915 {
1916 struct mpt3_diag_register karg;
1917 long rc;
1918
1919 if (copy_from_user(&karg, arg, sizeof(karg))) {
1920 pr_err("failure at %s:%d/%s()!\n",
1921 __FILE__, __LINE__, __func__);
1922 return -EFAULT;
1923 }
1924
1925 rc = _ctl_diag_register_2(ioc, &karg);
1926
1927 if (!rc && (ioc->diag_buffer_status[karg.buffer_type] &
1928 MPT3_DIAG_BUFFER_IS_REGISTERED))
1929 ioc->diag_buffer_status[karg.buffer_type] |=
1930 MPT3_DIAG_BUFFER_IS_APP_OWNED;
1931
1932 return rc;
1933 }
1934
1935 /**
1936 * _ctl_diag_unregister - application unregister with driver
1937 * @ioc: per adapter object
1938 * @arg: user space buffer containing ioctl content
1939 *
1940 * This will allow the driver to cleanup any memory allocated for diag
1941 * messages and to free up any resources.
1942 */
1943 static long
_ctl_diag_unregister(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1944 _ctl_diag_unregister(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1945 {
1946 struct mpt3_diag_unregister karg;
1947 void *request_data;
1948 dma_addr_t request_data_dma;
1949 u32 request_data_sz;
1950 u8 buffer_type;
1951
1952 if (copy_from_user(&karg, arg, sizeof(karg))) {
1953 pr_err("failure at %s:%d/%s()!\n",
1954 __FILE__, __LINE__, __func__);
1955 return -EFAULT;
1956 }
1957
1958 dctlprintk(ioc, ioc_info(ioc, "%s\n",
1959 __func__));
1960
1961 buffer_type = _ctl_diag_get_bufftype(ioc, karg.unique_id);
1962 if (buffer_type == MPT3_DIAG_UID_NOT_FOUND) {
1963 ioc_err(ioc, "%s: buffer with unique_id(0x%08x) not found\n",
1964 __func__, karg.unique_id);
1965 return -EINVAL;
1966 }
1967
1968 if (!_ctl_diag_capability(ioc, buffer_type)) {
1969 ioc_err(ioc, "%s: doesn't have capability for buffer_type(0x%02x)\n",
1970 __func__, buffer_type);
1971 return -EPERM;
1972 }
1973
1974 if ((ioc->diag_buffer_status[buffer_type] &
1975 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1976 ioc_err(ioc, "%s: buffer_type(0x%02x) is not registered\n",
1977 __func__, buffer_type);
1978 return -EINVAL;
1979 }
1980 if ((ioc->diag_buffer_status[buffer_type] &
1981 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
1982 ioc_err(ioc, "%s: buffer_type(0x%02x) has not been released\n",
1983 __func__, buffer_type);
1984 return -EINVAL;
1985 }
1986
1987 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1988 ioc_err(ioc, "%s: unique_id(0x%08x) is not registered\n",
1989 __func__, karg.unique_id);
1990 return -EINVAL;
1991 }
1992
1993 request_data = ioc->diag_buffer[buffer_type];
1994 if (!request_data) {
1995 ioc_err(ioc, "%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
1996 __func__, buffer_type);
1997 return -ENOMEM;
1998 }
1999
2000 if (ioc->diag_buffer_status[buffer_type] &
2001 MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED) {
2002 ioc->unique_id[buffer_type] = MPT3DIAGBUFFUNIQUEID;
2003 ioc->diag_buffer_status[buffer_type] &=
2004 ~MPT3_DIAG_BUFFER_IS_APP_OWNED;
2005 ioc->diag_buffer_status[buffer_type] &=
2006 ~MPT3_DIAG_BUFFER_IS_REGISTERED;
2007 } else {
2008 request_data_sz = ioc->diag_buffer_sz[buffer_type];
2009 request_data_dma = ioc->diag_buffer_dma[buffer_type];
2010 dma_free_coherent(&ioc->pdev->dev, request_data_sz,
2011 request_data, request_data_dma);
2012 ioc->diag_buffer[buffer_type] = NULL;
2013 ioc->diag_buffer_status[buffer_type] = 0;
2014 }
2015 return 0;
2016 }
2017
2018 /**
2019 * _ctl_diag_query - query relevant info associated with diag buffers
2020 * @ioc: per adapter object
2021 * @arg: user space buffer containing ioctl content
2022 *
2023 * The application will send only buffer_type and unique_id. Driver will
2024 * inspect unique_id first, if valid, fill in all the info. If unique_id is
2025 * 0x00, the driver will return info specified by Buffer Type.
2026 */
2027 static long
_ctl_diag_query(struct MPT3SAS_ADAPTER * ioc,void __user * arg)2028 _ctl_diag_query(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
2029 {
2030 struct mpt3_diag_query karg;
2031 void *request_data;
2032 int i;
2033 u8 buffer_type;
2034
2035 if (copy_from_user(&karg, arg, sizeof(karg))) {
2036 pr_err("failure at %s:%d/%s()!\n",
2037 __FILE__, __LINE__, __func__);
2038 return -EFAULT;
2039 }
2040
2041 dctlprintk(ioc, ioc_info(ioc, "%s\n",
2042 __func__));
2043
2044 karg.application_flags = 0;
2045 buffer_type = karg.buffer_type;
2046
2047 if (!_ctl_diag_capability(ioc, buffer_type)) {
2048 ioc_err(ioc, "%s: doesn't have capability for buffer_type(0x%02x)\n",
2049 __func__, buffer_type);
2050 return -EPERM;
2051 }
2052
2053 if (!(ioc->diag_buffer_status[buffer_type] &
2054 MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED)) {
2055 if ((ioc->diag_buffer_status[buffer_type] &
2056 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
2057 ioc_err(ioc, "%s: buffer_type(0x%02x) is not registered\n",
2058 __func__, buffer_type);
2059 return -EINVAL;
2060 }
2061 }
2062
2063 if (karg.unique_id) {
2064 if (karg.unique_id != ioc->unique_id[buffer_type]) {
2065 ioc_err(ioc, "%s: unique_id(0x%08x) is not registered\n",
2066 __func__, karg.unique_id);
2067 return -EINVAL;
2068 }
2069 }
2070
2071 request_data = ioc->diag_buffer[buffer_type];
2072 if (!request_data) {
2073 ioc_err(ioc, "%s: doesn't have buffer for buffer_type(0x%02x)\n",
2074 __func__, buffer_type);
2075 return -ENOMEM;
2076 }
2077
2078 if ((ioc->diag_buffer_status[buffer_type] &
2079 MPT3_DIAG_BUFFER_IS_REGISTERED))
2080 karg.application_flags |= MPT3_APP_FLAGS_BUFFER_VALID;
2081
2082 if (!(ioc->diag_buffer_status[buffer_type] &
2083 MPT3_DIAG_BUFFER_IS_RELEASED))
2084 karg.application_flags |= MPT3_APP_FLAGS_FW_BUFFER_ACCESS;
2085
2086 if (!(ioc->diag_buffer_status[buffer_type] &
2087 MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED))
2088 karg.application_flags |= MPT3_APP_FLAGS_DYNAMIC_BUFFER_ALLOC;
2089
2090 if ((ioc->diag_buffer_status[buffer_type] &
2091 MPT3_DIAG_BUFFER_IS_APP_OWNED))
2092 karg.application_flags |= MPT3_APP_FLAGS_APP_OWNED;
2093
2094 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
2095 karg.product_specific[i] =
2096 ioc->product_specific[buffer_type][i];
2097
2098 karg.total_buffer_size = ioc->diag_buffer_sz[buffer_type];
2099 karg.driver_added_buffer_size = 0;
2100 karg.unique_id = ioc->unique_id[buffer_type];
2101 karg.diagnostic_flags = ioc->diagnostic_flags[buffer_type];
2102
2103 if (copy_to_user(arg, &karg, sizeof(struct mpt3_diag_query))) {
2104 ioc_err(ioc, "%s: unable to write mpt3_diag_query data @ %p\n",
2105 __func__, arg);
2106 return -EFAULT;
2107 }
2108 return 0;
2109 }
2110
2111 /**
2112 * mpt3sas_send_diag_release - Diag Release Message
2113 * @ioc: per adapter object
2114 * @buffer_type: specifies either TRACE, SNAPSHOT, or EXTENDED
2115 * @issue_reset: specifies whether host reset is required.
2116 *
2117 */
2118 int
mpt3sas_send_diag_release(struct MPT3SAS_ADAPTER * ioc,u8 buffer_type,u8 * issue_reset)2119 mpt3sas_send_diag_release(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type,
2120 u8 *issue_reset)
2121 {
2122 Mpi2DiagReleaseRequest_t *mpi_request;
2123 Mpi2DiagReleaseReply_t *mpi_reply;
2124 u16 smid;
2125 u16 ioc_status;
2126 u32 ioc_state;
2127 int rc;
2128 u8 reset_needed = 0;
2129
2130 dctlprintk(ioc, ioc_info(ioc, "%s\n",
2131 __func__));
2132
2133 rc = 0;
2134 *issue_reset = 0;
2135
2136
2137 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
2138 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
2139 if (ioc->diag_buffer_status[buffer_type] &
2140 MPT3_DIAG_BUFFER_IS_REGISTERED)
2141 ioc->diag_buffer_status[buffer_type] |=
2142 MPT3_DIAG_BUFFER_IS_RELEASED;
2143 dctlprintk(ioc,
2144 ioc_info(ioc, "%s: skipping due to FAULT state\n",
2145 __func__));
2146 rc = -EAGAIN;
2147 goto out;
2148 }
2149
2150 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
2151 ioc_err(ioc, "%s: ctl_cmd in use\n", __func__);
2152 rc = -EAGAIN;
2153 goto out;
2154 }
2155
2156 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
2157 if (!smid) {
2158 ioc_err(ioc, "%s: failed obtaining a smid\n", __func__);
2159 rc = -EAGAIN;
2160 goto out;
2161 }
2162
2163 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
2164 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
2165 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
2166 ioc->ctl_cmds.smid = smid;
2167
2168 mpi_request->Function = MPI2_FUNCTION_DIAG_RELEASE;
2169 mpi_request->BufferType = buffer_type;
2170 mpi_request->VF_ID = 0; /* TODO */
2171 mpi_request->VP_ID = 0;
2172
2173 init_completion(&ioc->ctl_cmds.done);
2174 ioc->put_smid_default(ioc, smid);
2175 wait_for_completion_timeout(&ioc->ctl_cmds.done,
2176 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
2177
2178 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
2179 mpt3sas_check_cmd_timeout(ioc,
2180 ioc->ctl_cmds.status, mpi_request,
2181 sizeof(Mpi2DiagReleaseRequest_t)/4, reset_needed);
2182 *issue_reset = reset_needed;
2183 rc = -EFAULT;
2184 goto out;
2185 }
2186
2187 /* process the completed Reply Message Frame */
2188 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
2189 ioc_err(ioc, "%s: no reply message\n", __func__);
2190 rc = -EFAULT;
2191 goto out;
2192 }
2193
2194 mpi_reply = ioc->ctl_cmds.reply;
2195 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
2196
2197 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
2198 ioc->diag_buffer_status[buffer_type] |=
2199 MPT3_DIAG_BUFFER_IS_RELEASED;
2200 dctlprintk(ioc, ioc_info(ioc, "%s: success\n", __func__));
2201 } else {
2202 ioc_info(ioc, "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
2203 __func__,
2204 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
2205 rc = -EFAULT;
2206 }
2207
2208 out:
2209 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
2210 return rc;
2211 }
2212
2213 /**
2214 * _ctl_diag_release - request to send Diag Release Message to firmware
2215 * @ioc: ?
2216 * @arg: user space buffer containing ioctl content
2217 *
2218 * This allows ownership of the specified buffer to returned to the driver,
2219 * allowing an application to read the buffer without fear that firmware is
2220 * overwriting information in the buffer.
2221 */
2222 static long
_ctl_diag_release(struct MPT3SAS_ADAPTER * ioc,void __user * arg)2223 _ctl_diag_release(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
2224 {
2225 struct mpt3_diag_release karg;
2226 void *request_data;
2227 int rc;
2228 u8 buffer_type;
2229 u8 issue_reset = 0;
2230
2231 if (copy_from_user(&karg, arg, sizeof(karg))) {
2232 pr_err("failure at %s:%d/%s()!\n",
2233 __FILE__, __LINE__, __func__);
2234 return -EFAULT;
2235 }
2236
2237 dctlprintk(ioc, ioc_info(ioc, "%s\n",
2238 __func__));
2239
2240 buffer_type = _ctl_diag_get_bufftype(ioc, karg.unique_id);
2241 if (buffer_type == MPT3_DIAG_UID_NOT_FOUND) {
2242 ioc_err(ioc, "%s: buffer with unique_id(0x%08x) not found\n",
2243 __func__, karg.unique_id);
2244 return -EINVAL;
2245 }
2246
2247 if (!_ctl_diag_capability(ioc, buffer_type)) {
2248 ioc_err(ioc, "%s: doesn't have capability for buffer_type(0x%02x)\n",
2249 __func__, buffer_type);
2250 return -EPERM;
2251 }
2252
2253 if ((ioc->diag_buffer_status[buffer_type] &
2254 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
2255 ioc_err(ioc, "%s: buffer_type(0x%02x) is not registered\n",
2256 __func__, buffer_type);
2257 return -EINVAL;
2258 }
2259
2260 if (karg.unique_id != ioc->unique_id[buffer_type]) {
2261 ioc_err(ioc, "%s: unique_id(0x%08x) is not registered\n",
2262 __func__, karg.unique_id);
2263 return -EINVAL;
2264 }
2265
2266 if (ioc->diag_buffer_status[buffer_type] &
2267 MPT3_DIAG_BUFFER_IS_RELEASED) {
2268 ioc_err(ioc, "%s: buffer_type(0x%02x) is already released\n",
2269 __func__, buffer_type);
2270 return -EINVAL;
2271 }
2272
2273 request_data = ioc->diag_buffer[buffer_type];
2274
2275 if (!request_data) {
2276 ioc_err(ioc, "%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
2277 __func__, buffer_type);
2278 return -ENOMEM;
2279 }
2280
2281 /* buffers were released by due to host reset */
2282 if ((ioc->diag_buffer_status[buffer_type] &
2283 MPT3_DIAG_BUFFER_IS_DIAG_RESET)) {
2284 ioc->diag_buffer_status[buffer_type] |=
2285 MPT3_DIAG_BUFFER_IS_RELEASED;
2286 ioc->diag_buffer_status[buffer_type] &=
2287 ~MPT3_DIAG_BUFFER_IS_DIAG_RESET;
2288 ioc_err(ioc, "%s: buffer_type(0x%02x) was released due to host reset\n",
2289 __func__, buffer_type);
2290 return 0;
2291 }
2292
2293 rc = mpt3sas_send_diag_release(ioc, buffer_type, &issue_reset);
2294
2295 if (issue_reset)
2296 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
2297
2298 return rc;
2299 }
2300
2301 /**
2302 * _ctl_diag_read_buffer - request for copy of the diag buffer
2303 * @ioc: per adapter object
2304 * @arg: user space buffer containing ioctl content
2305 */
2306 static long
_ctl_diag_read_buffer(struct MPT3SAS_ADAPTER * ioc,void __user * arg)2307 _ctl_diag_read_buffer(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
2308 {
2309 struct mpt3_diag_read_buffer karg;
2310 struct mpt3_diag_read_buffer __user *uarg = arg;
2311 void *request_data, *diag_data;
2312 Mpi2DiagBufferPostRequest_t *mpi_request;
2313 Mpi2DiagBufferPostReply_t *mpi_reply;
2314 int rc, i;
2315 u8 buffer_type;
2316 unsigned long request_size, copy_size;
2317 u16 smid;
2318 u16 ioc_status;
2319 u8 issue_reset = 0;
2320
2321 if (copy_from_user(&karg, arg, sizeof(karg))) {
2322 pr_err("failure at %s:%d/%s()!\n",
2323 __FILE__, __LINE__, __func__);
2324 return -EFAULT;
2325 }
2326
2327 dctlprintk(ioc, ioc_info(ioc, "%s\n",
2328 __func__));
2329
2330 buffer_type = _ctl_diag_get_bufftype(ioc, karg.unique_id);
2331 if (buffer_type == MPT3_DIAG_UID_NOT_FOUND) {
2332 ioc_err(ioc, "%s: buffer with unique_id(0x%08x) not found\n",
2333 __func__, karg.unique_id);
2334 return -EINVAL;
2335 }
2336
2337 if (!_ctl_diag_capability(ioc, buffer_type)) {
2338 ioc_err(ioc, "%s: doesn't have capability for buffer_type(0x%02x)\n",
2339 __func__, buffer_type);
2340 return -EPERM;
2341 }
2342
2343 if (karg.unique_id != ioc->unique_id[buffer_type]) {
2344 ioc_err(ioc, "%s: unique_id(0x%08x) is not registered\n",
2345 __func__, karg.unique_id);
2346 return -EINVAL;
2347 }
2348
2349 request_data = ioc->diag_buffer[buffer_type];
2350 if (!request_data) {
2351 ioc_err(ioc, "%s: doesn't have buffer for buffer_type(0x%02x)\n",
2352 __func__, buffer_type);
2353 return -ENOMEM;
2354 }
2355
2356 request_size = ioc->diag_buffer_sz[buffer_type];
2357
2358 if ((karg.starting_offset % 4) || (karg.bytes_to_read % 4)) {
2359 ioc_err(ioc, "%s: either the starting_offset or bytes_to_read are not 4 byte aligned\n",
2360 __func__);
2361 return -EINVAL;
2362 }
2363
2364 if (karg.starting_offset > request_size)
2365 return -EINVAL;
2366
2367 diag_data = (void *)(request_data + karg.starting_offset);
2368 dctlprintk(ioc,
2369 ioc_info(ioc, "%s: diag_buffer(%p), offset(%d), sz(%d)\n",
2370 __func__, diag_data, karg.starting_offset,
2371 karg.bytes_to_read));
2372
2373 /* Truncate data on requests that are too large */
2374 if ((diag_data + karg.bytes_to_read < diag_data) ||
2375 (diag_data + karg.bytes_to_read > request_data + request_size))
2376 copy_size = request_size - karg.starting_offset;
2377 else
2378 copy_size = karg.bytes_to_read;
2379
2380 if (copy_to_user((void __user *)uarg->diagnostic_data,
2381 diag_data, copy_size)) {
2382 ioc_err(ioc, "%s: Unable to write mpt_diag_read_buffer_t data @ %p\n",
2383 __func__, diag_data);
2384 return -EFAULT;
2385 }
2386
2387 if ((karg.flags & MPT3_FLAGS_REREGISTER) == 0)
2388 return 0;
2389
2390 dctlprintk(ioc,
2391 ioc_info(ioc, "%s: Reregister buffer_type(0x%02x)\n",
2392 __func__, buffer_type));
2393 if ((ioc->diag_buffer_status[buffer_type] &
2394 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
2395 dctlprintk(ioc,
2396 ioc_info(ioc, "%s: buffer_type(0x%02x) is still registered\n",
2397 __func__, buffer_type));
2398 return 0;
2399 }
2400 /* Get a free request frame and save the message context.
2401 */
2402
2403 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
2404 ioc_err(ioc, "%s: ctl_cmd in use\n", __func__);
2405 rc = -EAGAIN;
2406 goto out;
2407 }
2408
2409 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
2410 if (!smid) {
2411 ioc_err(ioc, "%s: failed obtaining a smid\n", __func__);
2412 rc = -EAGAIN;
2413 goto out;
2414 }
2415
2416 rc = 0;
2417 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
2418 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
2419 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
2420 ioc->ctl_cmds.smid = smid;
2421
2422 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
2423 mpi_request->BufferType = buffer_type;
2424 mpi_request->BufferLength =
2425 cpu_to_le32(ioc->diag_buffer_sz[buffer_type]);
2426 mpi_request->BufferAddress =
2427 cpu_to_le64(ioc->diag_buffer_dma[buffer_type]);
2428 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
2429 mpi_request->ProductSpecific[i] =
2430 cpu_to_le32(ioc->product_specific[buffer_type][i]);
2431 mpi_request->VF_ID = 0; /* TODO */
2432 mpi_request->VP_ID = 0;
2433
2434 init_completion(&ioc->ctl_cmds.done);
2435 ioc->put_smid_default(ioc, smid);
2436 wait_for_completion_timeout(&ioc->ctl_cmds.done,
2437 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
2438
2439 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
2440 mpt3sas_check_cmd_timeout(ioc,
2441 ioc->ctl_cmds.status, mpi_request,
2442 sizeof(Mpi2DiagBufferPostRequest_t)/4, issue_reset);
2443 goto issue_host_reset;
2444 }
2445
2446 /* process the completed Reply Message Frame */
2447 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
2448 ioc_err(ioc, "%s: no reply message\n", __func__);
2449 rc = -EFAULT;
2450 goto out;
2451 }
2452
2453 mpi_reply = ioc->ctl_cmds.reply;
2454 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
2455
2456 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
2457 ioc->diag_buffer_status[buffer_type] |=
2458 MPT3_DIAG_BUFFER_IS_REGISTERED;
2459 ioc->diag_buffer_status[buffer_type] &=
2460 ~MPT3_DIAG_BUFFER_IS_RELEASED;
2461 dctlprintk(ioc, ioc_info(ioc, "%s: success\n", __func__));
2462 } else {
2463 ioc_info(ioc, "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
2464 __func__, ioc_status,
2465 le32_to_cpu(mpi_reply->IOCLogInfo));
2466 rc = -EFAULT;
2467 }
2468
2469 issue_host_reset:
2470 if (issue_reset)
2471 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
2472
2473 out:
2474
2475 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
2476 return rc;
2477 }
2478
2479 /**
2480 * _ctl_addnl_diag_query - query relevant info associated with diag buffers
2481 * @ioc: per adapter object
2482 * @arg: user space buffer containing ioctl content
2483 *
2484 * The application will send only unique_id. Driver will
2485 * inspect unique_id first, if valid, fill the details related to cause
2486 * for diag buffer release.
2487 */
2488 static long
_ctl_addnl_diag_query(struct MPT3SAS_ADAPTER * ioc,void __user * arg)2489 _ctl_addnl_diag_query(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
2490 {
2491 struct mpt3_addnl_diag_query karg;
2492 u32 buffer_type = 0;
2493
2494 if (copy_from_user(&karg, arg, sizeof(karg))) {
2495 pr_err("%s: failure at %s:%d/%s()!\n",
2496 ioc->name, __FILE__, __LINE__, __func__);
2497 return -EFAULT;
2498 }
2499 dctlprintk(ioc, ioc_info(ioc, "%s\n", __func__));
2500 if (karg.unique_id == 0) {
2501 ioc_err(ioc, "%s: unique_id is(0x%08x)\n",
2502 __func__, karg.unique_id);
2503 return -EPERM;
2504 }
2505 buffer_type = _ctl_diag_get_bufftype(ioc, karg.unique_id);
2506 if (buffer_type == MPT3_DIAG_UID_NOT_FOUND) {
2507 ioc_err(ioc, "%s: buffer with unique_id(0x%08x) not found\n",
2508 __func__, karg.unique_id);
2509 return -EPERM;
2510 }
2511 memset(&karg.rel_query, 0, sizeof(karg.rel_query));
2512 if ((ioc->diag_buffer_status[buffer_type] &
2513 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
2514 ioc_info(ioc, "%s: buffer_type(0x%02x) is not registered\n",
2515 __func__, buffer_type);
2516 goto out;
2517 }
2518 if ((ioc->diag_buffer_status[buffer_type] &
2519 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
2520 ioc_err(ioc, "%s: buffer_type(0x%02x) is not released\n",
2521 __func__, buffer_type);
2522 return -EPERM;
2523 }
2524 memcpy(&karg.rel_query, &ioc->htb_rel, sizeof(karg.rel_query));
2525 out:
2526 if (copy_to_user(arg, &karg, sizeof(struct mpt3_addnl_diag_query))) {
2527 ioc_err(ioc, "%s: unable to write mpt3_addnl_diag_query data @ %p\n",
2528 __func__, arg);
2529 return -EFAULT;
2530 }
2531 return 0;
2532 }
2533
2534 #ifdef CONFIG_COMPAT
2535 /**
2536 * _ctl_compat_mpt_command - convert 32bit pointers to 64bit.
2537 * @ioc: per adapter object
2538 * @cmd: ioctl opcode
2539 * @arg: (struct mpt3_ioctl_command32)
2540 *
2541 * MPT3COMMAND32 - Handle 32bit applications running on 64bit os.
2542 */
2543 static long
_ctl_compat_mpt_command(struct MPT3SAS_ADAPTER * ioc,unsigned cmd,void __user * arg)2544 _ctl_compat_mpt_command(struct MPT3SAS_ADAPTER *ioc, unsigned cmd,
2545 void __user *arg)
2546 {
2547 struct mpt3_ioctl_command32 karg32;
2548 struct mpt3_ioctl_command32 __user *uarg;
2549 struct mpt3_ioctl_command karg;
2550
2551 if (_IOC_SIZE(cmd) != sizeof(struct mpt3_ioctl_command32))
2552 return -EINVAL;
2553
2554 uarg = (struct mpt3_ioctl_command32 __user *) arg;
2555
2556 if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32))) {
2557 pr_err("failure at %s:%d/%s()!\n",
2558 __FILE__, __LINE__, __func__);
2559 return -EFAULT;
2560 }
2561
2562 memset(&karg, 0, sizeof(struct mpt3_ioctl_command));
2563 karg.hdr.ioc_number = karg32.hdr.ioc_number;
2564 karg.hdr.port_number = karg32.hdr.port_number;
2565 karg.hdr.max_data_size = karg32.hdr.max_data_size;
2566 karg.timeout = karg32.timeout;
2567 karg.max_reply_bytes = karg32.max_reply_bytes;
2568 karg.data_in_size = karg32.data_in_size;
2569 karg.data_out_size = karg32.data_out_size;
2570 karg.max_sense_bytes = karg32.max_sense_bytes;
2571 karg.data_sge_offset = karg32.data_sge_offset;
2572 karg.reply_frame_buf_ptr = compat_ptr(karg32.reply_frame_buf_ptr);
2573 karg.data_in_buf_ptr = compat_ptr(karg32.data_in_buf_ptr);
2574 karg.data_out_buf_ptr = compat_ptr(karg32.data_out_buf_ptr);
2575 karg.sense_data_ptr = compat_ptr(karg32.sense_data_ptr);
2576 return _ctl_do_mpt_command(ioc, karg, &uarg->mf);
2577 }
2578 #endif
2579
2580 /**
2581 * _ctl_ioctl_main - main ioctl entry point
2582 * @file: (struct file)
2583 * @cmd: ioctl opcode
2584 * @arg: user space data buffer
2585 * @compat: handles 32 bit applications in 64bit os
2586 * @mpi_version: will be MPI2_VERSION for mpt2ctl ioctl device &
2587 * MPI25_VERSION | MPI26_VERSION for mpt3ctl ioctl device.
2588 */
2589 static long
_ctl_ioctl_main(struct file * file,unsigned int cmd,void __user * arg,u8 compat,u16 mpi_version)2590 _ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg,
2591 u8 compat, u16 mpi_version)
2592 {
2593 struct MPT3SAS_ADAPTER *ioc;
2594 struct mpt3_ioctl_header ioctl_header;
2595 enum block_state state;
2596 long ret = -ENOIOCTLCMD;
2597
2598 /* get IOCTL header */
2599 if (copy_from_user(&ioctl_header, (char __user *)arg,
2600 sizeof(struct mpt3_ioctl_header))) {
2601 pr_err("failure at %s:%d/%s()!\n",
2602 __FILE__, __LINE__, __func__);
2603 return -EFAULT;
2604 }
2605
2606 if (_ctl_verify_adapter(ioctl_header.ioc_number,
2607 &ioc, mpi_version) == -1 || !ioc)
2608 return -ENODEV;
2609
2610 /* pci_access_mutex lock acquired by ioctl path */
2611 mutex_lock(&ioc->pci_access_mutex);
2612
2613 if (ioc->shost_recovery || ioc->pci_error_recovery ||
2614 ioc->is_driver_loading || ioc->remove_host) {
2615 ret = -EAGAIN;
2616 goto out_unlock_pciaccess;
2617 }
2618
2619 state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING;
2620 if (state == NON_BLOCKING) {
2621 if (!mutex_trylock(&ioc->ctl_cmds.mutex)) {
2622 ret = -EAGAIN;
2623 goto out_unlock_pciaccess;
2624 }
2625 } else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) {
2626 ret = -ERESTARTSYS;
2627 goto out_unlock_pciaccess;
2628 }
2629
2630
2631 switch (cmd) {
2632 case MPT3IOCINFO:
2633 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_iocinfo))
2634 ret = _ctl_getiocinfo(ioc, arg);
2635 break;
2636 #ifdef CONFIG_COMPAT
2637 case MPT3COMMAND32:
2638 #endif
2639 case MPT3COMMAND:
2640 {
2641 struct mpt3_ioctl_command __user *uarg;
2642 struct mpt3_ioctl_command karg;
2643
2644 #ifdef CONFIG_COMPAT
2645 if (compat) {
2646 ret = _ctl_compat_mpt_command(ioc, cmd, arg);
2647 break;
2648 }
2649 #endif
2650 if (copy_from_user(&karg, arg, sizeof(karg))) {
2651 pr_err("failure at %s:%d/%s()!\n",
2652 __FILE__, __LINE__, __func__);
2653 ret = -EFAULT;
2654 break;
2655 }
2656
2657 if (karg.hdr.ioc_number != ioctl_header.ioc_number) {
2658 ret = -EINVAL;
2659 break;
2660 }
2661 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_command)) {
2662 uarg = arg;
2663 ret = _ctl_do_mpt_command(ioc, karg, &uarg->mf);
2664 }
2665 break;
2666 }
2667 case MPT3EVENTQUERY:
2668 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventquery))
2669 ret = _ctl_eventquery(ioc, arg);
2670 break;
2671 case MPT3EVENTENABLE:
2672 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventenable))
2673 ret = _ctl_eventenable(ioc, arg);
2674 break;
2675 case MPT3EVENTREPORT:
2676 ret = _ctl_eventreport(ioc, arg);
2677 break;
2678 case MPT3HARDRESET:
2679 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_diag_reset))
2680 ret = _ctl_do_reset(ioc, arg);
2681 break;
2682 case MPT3BTDHMAPPING:
2683 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_btdh_mapping))
2684 ret = _ctl_btdh_mapping(ioc, arg);
2685 break;
2686 case MPT3DIAGREGISTER:
2687 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_register))
2688 ret = _ctl_diag_register(ioc, arg);
2689 break;
2690 case MPT3DIAGUNREGISTER:
2691 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_unregister))
2692 ret = _ctl_diag_unregister(ioc, arg);
2693 break;
2694 case MPT3DIAGQUERY:
2695 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_query))
2696 ret = _ctl_diag_query(ioc, arg);
2697 break;
2698 case MPT3DIAGRELEASE:
2699 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_release))
2700 ret = _ctl_diag_release(ioc, arg);
2701 break;
2702 case MPT3DIAGREADBUFFER:
2703 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_read_buffer))
2704 ret = _ctl_diag_read_buffer(ioc, arg);
2705 break;
2706 case MPT3ADDNLDIAGQUERY:
2707 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_addnl_diag_query))
2708 ret = _ctl_addnl_diag_query(ioc, arg);
2709 break;
2710 default:
2711 dctlprintk(ioc,
2712 ioc_info(ioc, "unsupported ioctl opcode(0x%08x)\n",
2713 cmd));
2714 break;
2715 }
2716
2717 mutex_unlock(&ioc->ctl_cmds.mutex);
2718 out_unlock_pciaccess:
2719 mutex_unlock(&ioc->pci_access_mutex);
2720 return ret;
2721 }
2722
2723 /**
2724 * _ctl_ioctl - mpt3ctl main ioctl entry point (unlocked)
2725 * @file: (struct file)
2726 * @cmd: ioctl opcode
2727 * @arg: ?
2728 */
2729 static long
_ctl_ioctl(struct file * file,unsigned int cmd,unsigned long arg)2730 _ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2731 {
2732 long ret;
2733
2734 /* pass MPI25_VERSION | MPI26_VERSION value,
2735 * to indicate that this ioctl cmd
2736 * came from mpt3ctl ioctl device.
2737 */
2738 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0,
2739 MPI25_VERSION | MPI26_VERSION);
2740 return ret;
2741 }
2742
2743 /**
2744 * _ctl_mpt2_ioctl - mpt2ctl main ioctl entry point (unlocked)
2745 * @file: (struct file)
2746 * @cmd: ioctl opcode
2747 * @arg: ?
2748 */
2749 static long
_ctl_mpt2_ioctl(struct file * file,unsigned int cmd,unsigned long arg)2750 _ctl_mpt2_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2751 {
2752 long ret;
2753
2754 /* pass MPI2_VERSION value, to indicate that this ioctl cmd
2755 * came from mpt2ctl ioctl device.
2756 */
2757 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0, MPI2_VERSION);
2758 return ret;
2759 }
2760 #ifdef CONFIG_COMPAT
2761 /**
2762 * _ctl_ioctl_compat - main ioctl entry point (compat)
2763 * @file: ?
2764 * @cmd: ?
2765 * @arg: ?
2766 *
2767 * This routine handles 32 bit applications in 64bit os.
2768 */
2769 static long
_ctl_ioctl_compat(struct file * file,unsigned cmd,unsigned long arg)2770 _ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
2771 {
2772 long ret;
2773
2774 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1,
2775 MPI25_VERSION | MPI26_VERSION);
2776 return ret;
2777 }
2778
2779 /**
2780 * _ctl_mpt2_ioctl_compat - main ioctl entry point (compat)
2781 * @file: ?
2782 * @cmd: ?
2783 * @arg: ?
2784 *
2785 * This routine handles 32 bit applications in 64bit os.
2786 */
2787 static long
_ctl_mpt2_ioctl_compat(struct file * file,unsigned cmd,unsigned long arg)2788 _ctl_mpt2_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
2789 {
2790 long ret;
2791
2792 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1, MPI2_VERSION);
2793 return ret;
2794 }
2795 #endif
2796
2797 /* scsi host attributes */
2798 /**
2799 * version_fw_show - firmware version
2800 * @cdev: pointer to embedded class device
2801 * @attr: ?
2802 * @buf: the buffer returned
2803 *
2804 * A sysfs 'read-only' shost attribute.
2805 */
2806 static ssize_t
version_fw_show(struct device * cdev,struct device_attribute * attr,char * buf)2807 version_fw_show(struct device *cdev, struct device_attribute *attr,
2808 char *buf)
2809 {
2810 struct Scsi_Host *shost = class_to_shost(cdev);
2811 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2812
2813 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2814 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
2815 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
2816 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
2817 ioc->facts.FWVersion.Word & 0x000000FF);
2818 }
2819 static DEVICE_ATTR_RO(version_fw);
2820
2821 /**
2822 * version_bios_show - bios version
2823 * @cdev: pointer to embedded class device
2824 * @attr: ?
2825 * @buf: the buffer returned
2826 *
2827 * A sysfs 'read-only' shost attribute.
2828 */
2829 static ssize_t
version_bios_show(struct device * cdev,struct device_attribute * attr,char * buf)2830 version_bios_show(struct device *cdev, struct device_attribute *attr,
2831 char *buf)
2832 {
2833 struct Scsi_Host *shost = class_to_shost(cdev);
2834 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2835
2836 u32 version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
2837
2838 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2839 (version & 0xFF000000) >> 24,
2840 (version & 0x00FF0000) >> 16,
2841 (version & 0x0000FF00) >> 8,
2842 version & 0x000000FF);
2843 }
2844 static DEVICE_ATTR_RO(version_bios);
2845
2846 /**
2847 * version_mpi_show - MPI (message passing interface) version
2848 * @cdev: pointer to embedded class device
2849 * @attr: ?
2850 * @buf: the buffer returned
2851 *
2852 * A sysfs 'read-only' shost attribute.
2853 */
2854 static ssize_t
version_mpi_show(struct device * cdev,struct device_attribute * attr,char * buf)2855 version_mpi_show(struct device *cdev, struct device_attribute *attr,
2856 char *buf)
2857 {
2858 struct Scsi_Host *shost = class_to_shost(cdev);
2859 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2860
2861 return snprintf(buf, PAGE_SIZE, "%03x.%02x\n",
2862 ioc->facts.MsgVersion, ioc->facts.HeaderVersion >> 8);
2863 }
2864 static DEVICE_ATTR_RO(version_mpi);
2865
2866 /**
2867 * version_product_show - product name
2868 * @cdev: pointer to embedded class device
2869 * @attr: ?
2870 * @buf: the buffer returned
2871 *
2872 * A sysfs 'read-only' shost attribute.
2873 */
2874 static ssize_t
version_product_show(struct device * cdev,struct device_attribute * attr,char * buf)2875 version_product_show(struct device *cdev, struct device_attribute *attr,
2876 char *buf)
2877 {
2878 struct Scsi_Host *shost = class_to_shost(cdev);
2879 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2880
2881 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.ChipName);
2882 }
2883 static DEVICE_ATTR_RO(version_product);
2884
2885 /**
2886 * version_nvdata_persistent_show - ndvata persistent version
2887 * @cdev: pointer to embedded class device
2888 * @attr: ?
2889 * @buf: the buffer returned
2890 *
2891 * A sysfs 'read-only' shost attribute.
2892 */
2893 static ssize_t
version_nvdata_persistent_show(struct device * cdev,struct device_attribute * attr,char * buf)2894 version_nvdata_persistent_show(struct device *cdev,
2895 struct device_attribute *attr, char *buf)
2896 {
2897 struct Scsi_Host *shost = class_to_shost(cdev);
2898 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2899
2900 return snprintf(buf, PAGE_SIZE, "%08xh\n",
2901 le32_to_cpu(ioc->iounit_pg0.NvdataVersionPersistent.Word));
2902 }
2903 static DEVICE_ATTR_RO(version_nvdata_persistent);
2904
2905 /**
2906 * version_nvdata_default_show - nvdata default version
2907 * @cdev: pointer to embedded class device
2908 * @attr: ?
2909 * @buf: the buffer returned
2910 *
2911 * A sysfs 'read-only' shost attribute.
2912 */
2913 static ssize_t
version_nvdata_default_show(struct device * cdev,struct device_attribute * attr,char * buf)2914 version_nvdata_default_show(struct device *cdev, struct device_attribute
2915 *attr, char *buf)
2916 {
2917 struct Scsi_Host *shost = class_to_shost(cdev);
2918 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2919
2920 return snprintf(buf, PAGE_SIZE, "%08xh\n",
2921 le32_to_cpu(ioc->iounit_pg0.NvdataVersionDefault.Word));
2922 }
2923 static DEVICE_ATTR_RO(version_nvdata_default);
2924
2925 /**
2926 * board_name_show - board name
2927 * @cdev: pointer to embedded class device
2928 * @attr: ?
2929 * @buf: the buffer returned
2930 *
2931 * A sysfs 'read-only' shost attribute.
2932 */
2933 static ssize_t
board_name_show(struct device * cdev,struct device_attribute * attr,char * buf)2934 board_name_show(struct device *cdev, struct device_attribute *attr,
2935 char *buf)
2936 {
2937 struct Scsi_Host *shost = class_to_shost(cdev);
2938 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2939
2940 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardName);
2941 }
2942 static DEVICE_ATTR_RO(board_name);
2943
2944 /**
2945 * board_assembly_show - board assembly name
2946 * @cdev: pointer to embedded class device
2947 * @attr: ?
2948 * @buf: the buffer returned
2949 *
2950 * A sysfs 'read-only' shost attribute.
2951 */
2952 static ssize_t
board_assembly_show(struct device * cdev,struct device_attribute * attr,char * buf)2953 board_assembly_show(struct device *cdev, struct device_attribute *attr,
2954 char *buf)
2955 {
2956 struct Scsi_Host *shost = class_to_shost(cdev);
2957 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2958
2959 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardAssembly);
2960 }
2961 static DEVICE_ATTR_RO(board_assembly);
2962
2963 /**
2964 * board_tracer_show - board tracer number
2965 * @cdev: pointer to embedded class device
2966 * @attr: ?
2967 * @buf: the buffer returned
2968 *
2969 * A sysfs 'read-only' shost attribute.
2970 */
2971 static ssize_t
board_tracer_show(struct device * cdev,struct device_attribute * attr,char * buf)2972 board_tracer_show(struct device *cdev, struct device_attribute *attr,
2973 char *buf)
2974 {
2975 struct Scsi_Host *shost = class_to_shost(cdev);
2976 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2977
2978 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardTracerNumber);
2979 }
2980 static DEVICE_ATTR_RO(board_tracer);
2981
2982 /**
2983 * io_delay_show - io missing delay
2984 * @cdev: pointer to embedded class device
2985 * @attr: ?
2986 * @buf: the buffer returned
2987 *
2988 * This is for firmware implemention for deboucing device
2989 * removal events.
2990 *
2991 * A sysfs 'read-only' shost attribute.
2992 */
2993 static ssize_t
io_delay_show(struct device * cdev,struct device_attribute * attr,char * buf)2994 io_delay_show(struct device *cdev, struct device_attribute *attr,
2995 char *buf)
2996 {
2997 struct Scsi_Host *shost = class_to_shost(cdev);
2998 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2999
3000 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
3001 }
3002 static DEVICE_ATTR_RO(io_delay);
3003
3004 /**
3005 * device_delay_show - device missing delay
3006 * @cdev: pointer to embedded class device
3007 * @attr: ?
3008 * @buf: the buffer returned
3009 *
3010 * This is for firmware implemention for deboucing device
3011 * removal events.
3012 *
3013 * A sysfs 'read-only' shost attribute.
3014 */
3015 static ssize_t
device_delay_show(struct device * cdev,struct device_attribute * attr,char * buf)3016 device_delay_show(struct device *cdev, struct device_attribute *attr,
3017 char *buf)
3018 {
3019 struct Scsi_Host *shost = class_to_shost(cdev);
3020 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3021
3022 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
3023 }
3024 static DEVICE_ATTR_RO(device_delay);
3025
3026 /**
3027 * fw_queue_depth_show - global credits
3028 * @cdev: pointer to embedded class device
3029 * @attr: ?
3030 * @buf: the buffer returned
3031 *
3032 * This is firmware queue depth limit
3033 *
3034 * A sysfs 'read-only' shost attribute.
3035 */
3036 static ssize_t
fw_queue_depth_show(struct device * cdev,struct device_attribute * attr,char * buf)3037 fw_queue_depth_show(struct device *cdev, struct device_attribute *attr,
3038 char *buf)
3039 {
3040 struct Scsi_Host *shost = class_to_shost(cdev);
3041 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3042
3043 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->facts.RequestCredit);
3044 }
3045 static DEVICE_ATTR_RO(fw_queue_depth);
3046
3047 /**
3048 * host_sas_address_show - sas address
3049 * @cdev: pointer to embedded class device
3050 * @attr: ?
3051 * @buf: the buffer returned
3052 *
3053 * This is the controller sas address
3054 *
3055 * A sysfs 'read-only' shost attribute.
3056 */
3057 static ssize_t
host_sas_address_show(struct device * cdev,struct device_attribute * attr,char * buf)3058 host_sas_address_show(struct device *cdev, struct device_attribute *attr,
3059 char *buf)
3060
3061 {
3062 struct Scsi_Host *shost = class_to_shost(cdev);
3063 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3064
3065 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
3066 (unsigned long long)ioc->sas_hba.sas_address);
3067 }
3068 static DEVICE_ATTR_RO(host_sas_address);
3069
3070 /**
3071 * logging_level_show - logging level
3072 * @cdev: pointer to embedded class device
3073 * @attr: ?
3074 * @buf: the buffer returned
3075 *
3076 * A sysfs 'read/write' shost attribute.
3077 */
3078 static ssize_t
logging_level_show(struct device * cdev,struct device_attribute * attr,char * buf)3079 logging_level_show(struct device *cdev, struct device_attribute *attr,
3080 char *buf)
3081 {
3082 struct Scsi_Host *shost = class_to_shost(cdev);
3083 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3084
3085 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->logging_level);
3086 }
3087 static ssize_t
logging_level_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3088 logging_level_store(struct device *cdev, struct device_attribute *attr,
3089 const char *buf, size_t count)
3090 {
3091 struct Scsi_Host *shost = class_to_shost(cdev);
3092 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3093 int val = 0;
3094
3095 if (sscanf(buf, "%x", &val) != 1)
3096 return -EINVAL;
3097
3098 ioc->logging_level = val;
3099 ioc_info(ioc, "logging_level=%08xh\n",
3100 ioc->logging_level);
3101 return strlen(buf);
3102 }
3103 static DEVICE_ATTR_RW(logging_level);
3104
3105 /**
3106 * fwfault_debug_show - show/store fwfault_debug
3107 * @cdev: pointer to embedded class device
3108 * @attr: ?
3109 * @buf: the buffer returned
3110 *
3111 * mpt3sas_fwfault_debug is command line option
3112 * A sysfs 'read/write' shost attribute.
3113 */
3114 static ssize_t
fwfault_debug_show(struct device * cdev,struct device_attribute * attr,char * buf)3115 fwfault_debug_show(struct device *cdev, struct device_attribute *attr,
3116 char *buf)
3117 {
3118 struct Scsi_Host *shost = class_to_shost(cdev);
3119 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3120
3121 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->fwfault_debug);
3122 }
3123 static ssize_t
fwfault_debug_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3124 fwfault_debug_store(struct device *cdev, struct device_attribute *attr,
3125 const char *buf, size_t count)
3126 {
3127 struct Scsi_Host *shost = class_to_shost(cdev);
3128 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3129 int val = 0;
3130
3131 if (sscanf(buf, "%d", &val) != 1)
3132 return -EINVAL;
3133
3134 ioc->fwfault_debug = val;
3135 ioc_info(ioc, "fwfault_debug=%d\n",
3136 ioc->fwfault_debug);
3137 return strlen(buf);
3138 }
3139 static DEVICE_ATTR_RW(fwfault_debug);
3140
3141 /**
3142 * ioc_reset_count_show - ioc reset count
3143 * @cdev: pointer to embedded class device
3144 * @attr: ?
3145 * @buf: the buffer returned
3146 *
3147 * This is firmware queue depth limit
3148 *
3149 * A sysfs 'read-only' shost attribute.
3150 */
3151 static ssize_t
ioc_reset_count_show(struct device * cdev,struct device_attribute * attr,char * buf)3152 ioc_reset_count_show(struct device *cdev, struct device_attribute *attr,
3153 char *buf)
3154 {
3155 struct Scsi_Host *shost = class_to_shost(cdev);
3156 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3157
3158 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->ioc_reset_count);
3159 }
3160 static DEVICE_ATTR_RO(ioc_reset_count);
3161
3162 /**
3163 * reply_queue_count_show - number of reply queues
3164 * @cdev: pointer to embedded class device
3165 * @attr: ?
3166 * @buf: the buffer returned
3167 *
3168 * This is number of reply queues
3169 *
3170 * A sysfs 'read-only' shost attribute.
3171 */
3172 static ssize_t
reply_queue_count_show(struct device * cdev,struct device_attribute * attr,char * buf)3173 reply_queue_count_show(struct device *cdev,
3174 struct device_attribute *attr, char *buf)
3175 {
3176 u8 reply_queue_count;
3177 struct Scsi_Host *shost = class_to_shost(cdev);
3178 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3179
3180 if ((ioc->facts.IOCCapabilities &
3181 MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX) && ioc->msix_enable)
3182 reply_queue_count = ioc->reply_queue_count;
3183 else
3184 reply_queue_count = 1;
3185
3186 return snprintf(buf, PAGE_SIZE, "%d\n", reply_queue_count);
3187 }
3188 static DEVICE_ATTR_RO(reply_queue_count);
3189
3190 /**
3191 * BRM_status_show - Backup Rail Monitor Status
3192 * @cdev: pointer to embedded class device
3193 * @attr: ?
3194 * @buf: the buffer returned
3195 *
3196 * This is number of reply queues
3197 *
3198 * A sysfs 'read-only' shost attribute.
3199 */
3200 static ssize_t
BRM_status_show(struct device * cdev,struct device_attribute * attr,char * buf)3201 BRM_status_show(struct device *cdev, struct device_attribute *attr,
3202 char *buf)
3203 {
3204 struct Scsi_Host *shost = class_to_shost(cdev);
3205 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3206 Mpi2IOUnitPage3_t io_unit_pg3;
3207 Mpi2ConfigReply_t mpi_reply;
3208 u16 backup_rail_monitor_status = 0;
3209 u16 ioc_status;
3210 int sz;
3211 ssize_t rc = 0;
3212
3213 if (!ioc->is_warpdrive) {
3214 ioc_err(ioc, "%s: BRM attribute is only for warpdrive\n",
3215 __func__);
3216 return 0;
3217 }
3218 /* pci_access_mutex lock acquired by sysfs show path */
3219 mutex_lock(&ioc->pci_access_mutex);
3220 if (ioc->pci_error_recovery || ioc->remove_host)
3221 goto out;
3222
3223 sz = sizeof(io_unit_pg3);
3224 memset(&io_unit_pg3, 0, sz);
3225
3226 if (mpt3sas_config_get_iounit_pg3(ioc, &mpi_reply, &io_unit_pg3, sz) !=
3227 0) {
3228 ioc_err(ioc, "%s: failed reading iounit_pg3\n",
3229 __func__);
3230 rc = -EINVAL;
3231 goto out;
3232 }
3233
3234 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
3235 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3236 ioc_err(ioc, "%s: iounit_pg3 failed with ioc_status(0x%04x)\n",
3237 __func__, ioc_status);
3238 rc = -EINVAL;
3239 goto out;
3240 }
3241
3242 if (io_unit_pg3.GPIOCount < 25) {
3243 ioc_err(ioc, "%s: iounit_pg3.GPIOCount less than 25 entries, detected (%d) entries\n",
3244 __func__, io_unit_pg3.GPIOCount);
3245 rc = -EINVAL;
3246 goto out;
3247 }
3248
3249 /* BRM status is in bit zero of GPIOVal[24] */
3250 backup_rail_monitor_status = le16_to_cpu(io_unit_pg3.GPIOVal[24]);
3251 rc = snprintf(buf, PAGE_SIZE, "%d\n", (backup_rail_monitor_status & 1));
3252
3253 out:
3254 mutex_unlock(&ioc->pci_access_mutex);
3255 return rc;
3256 }
3257 static DEVICE_ATTR_RO(BRM_status);
3258
3259 struct DIAG_BUFFER_START {
3260 __le32 Size;
3261 __le32 DiagVersion;
3262 u8 BufferType;
3263 u8 Reserved[3];
3264 __le32 Reserved1;
3265 __le32 Reserved2;
3266 __le32 Reserved3;
3267 };
3268
3269 /**
3270 * host_trace_buffer_size_show - host buffer size (trace only)
3271 * @cdev: pointer to embedded class device
3272 * @attr: ?
3273 * @buf: the buffer returned
3274 *
3275 * A sysfs 'read-only' shost attribute.
3276 */
3277 static ssize_t
host_trace_buffer_size_show(struct device * cdev,struct device_attribute * attr,char * buf)3278 host_trace_buffer_size_show(struct device *cdev,
3279 struct device_attribute *attr, char *buf)
3280 {
3281 struct Scsi_Host *shost = class_to_shost(cdev);
3282 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3283 u32 size = 0;
3284 struct DIAG_BUFFER_START *request_data;
3285
3286 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
3287 ioc_err(ioc, "%s: host_trace_buffer is not registered\n",
3288 __func__);
3289 return 0;
3290 }
3291
3292 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3293 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
3294 ioc_err(ioc, "%s: host_trace_buffer is not registered\n",
3295 __func__);
3296 return 0;
3297 }
3298
3299 request_data = (struct DIAG_BUFFER_START *)
3300 ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE];
3301 if ((le32_to_cpu(request_data->DiagVersion) == 0x00000000 ||
3302 le32_to_cpu(request_data->DiagVersion) == 0x01000000 ||
3303 le32_to_cpu(request_data->DiagVersion) == 0x01010000) &&
3304 le32_to_cpu(request_data->Reserved3) == 0x4742444c)
3305 size = le32_to_cpu(request_data->Size);
3306
3307 ioc->ring_buffer_sz = size;
3308 return snprintf(buf, PAGE_SIZE, "%d\n", size);
3309 }
3310 static DEVICE_ATTR_RO(host_trace_buffer_size);
3311
3312 /**
3313 * host_trace_buffer_show - firmware ring buffer (trace only)
3314 * @cdev: pointer to embedded class device
3315 * @attr: ?
3316 * @buf: the buffer returned
3317 *
3318 * A sysfs 'read/write' shost attribute.
3319 *
3320 * You will only be able to read 4k bytes of ring buffer at a time.
3321 * In order to read beyond 4k bytes, you will have to write out the
3322 * offset to the same attribute, it will move the pointer.
3323 */
3324 static ssize_t
host_trace_buffer_show(struct device * cdev,struct device_attribute * attr,char * buf)3325 host_trace_buffer_show(struct device *cdev, struct device_attribute *attr,
3326 char *buf)
3327 {
3328 struct Scsi_Host *shost = class_to_shost(cdev);
3329 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3330 void *request_data;
3331 u32 size;
3332
3333 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
3334 ioc_err(ioc, "%s: host_trace_buffer is not registered\n",
3335 __func__);
3336 return 0;
3337 }
3338
3339 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3340 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
3341 ioc_err(ioc, "%s: host_trace_buffer is not registered\n",
3342 __func__);
3343 return 0;
3344 }
3345
3346 if (ioc->ring_buffer_offset > ioc->ring_buffer_sz)
3347 return 0;
3348
3349 size = ioc->ring_buffer_sz - ioc->ring_buffer_offset;
3350 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size;
3351 request_data = ioc->diag_buffer[0] + ioc->ring_buffer_offset;
3352 memcpy(buf, request_data, size);
3353 return size;
3354 }
3355
3356 static ssize_t
host_trace_buffer_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3357 host_trace_buffer_store(struct device *cdev, struct device_attribute *attr,
3358 const char *buf, size_t count)
3359 {
3360 struct Scsi_Host *shost = class_to_shost(cdev);
3361 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3362 int val = 0;
3363
3364 if (sscanf(buf, "%d", &val) != 1)
3365 return -EINVAL;
3366
3367 ioc->ring_buffer_offset = val;
3368 return strlen(buf);
3369 }
3370 static DEVICE_ATTR_RW(host_trace_buffer);
3371
3372
3373 /*****************************************/
3374
3375 /**
3376 * host_trace_buffer_enable_show - firmware ring buffer (trace only)
3377 * @cdev: pointer to embedded class device
3378 * @attr: ?
3379 * @buf: the buffer returned
3380 *
3381 * A sysfs 'read/write' shost attribute.
3382 *
3383 * This is a mechnism to post/release host_trace_buffers
3384 */
3385 static ssize_t
host_trace_buffer_enable_show(struct device * cdev,struct device_attribute * attr,char * buf)3386 host_trace_buffer_enable_show(struct device *cdev,
3387 struct device_attribute *attr, char *buf)
3388 {
3389 struct Scsi_Host *shost = class_to_shost(cdev);
3390 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3391
3392 if ((!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) ||
3393 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3394 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0))
3395 return snprintf(buf, PAGE_SIZE, "off\n");
3396 else if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3397 MPT3_DIAG_BUFFER_IS_RELEASED))
3398 return snprintf(buf, PAGE_SIZE, "release\n");
3399 else
3400 return snprintf(buf, PAGE_SIZE, "post\n");
3401 }
3402
3403 static ssize_t
host_trace_buffer_enable_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3404 host_trace_buffer_enable_store(struct device *cdev,
3405 struct device_attribute *attr, const char *buf, size_t count)
3406 {
3407 struct Scsi_Host *shost = class_to_shost(cdev);
3408 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3409 char str[10] = "";
3410 struct mpt3_diag_register diag_register;
3411 u8 issue_reset = 0;
3412
3413 /* don't allow post/release occurr while recovery is active */
3414 if (ioc->shost_recovery || ioc->remove_host ||
3415 ioc->pci_error_recovery || ioc->is_driver_loading)
3416 return -EBUSY;
3417
3418 if (sscanf(buf, "%9s", str) != 1)
3419 return -EINVAL;
3420
3421 if (!strcmp(str, "post")) {
3422 /* exit out if host buffers are already posted */
3423 if ((ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) &&
3424 (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3425 MPT3_DIAG_BUFFER_IS_REGISTERED) &&
3426 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3427 MPT3_DIAG_BUFFER_IS_RELEASED) == 0))
3428 goto out;
3429 memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
3430 ioc_info(ioc, "posting host trace buffers\n");
3431 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
3432
3433 if (ioc->manu_pg11.HostTraceBufferMaxSizeKB != 0 &&
3434 ioc->diag_buffer_sz[MPI2_DIAG_BUF_TYPE_TRACE] != 0) {
3435 /* post the same buffer allocated previously */
3436 diag_register.requested_buffer_size =
3437 ioc->diag_buffer_sz[MPI2_DIAG_BUF_TYPE_TRACE];
3438 } else {
3439 /*
3440 * Free the diag buffer memory which was previously
3441 * allocated by an application.
3442 */
3443 if ((ioc->diag_buffer_sz[MPI2_DIAG_BUF_TYPE_TRACE] != 0)
3444 &&
3445 (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3446 MPT3_DIAG_BUFFER_IS_APP_OWNED)) {
3447 dma_free_coherent(&ioc->pdev->dev,
3448 ioc->diag_buffer_sz[MPI2_DIAG_BUF_TYPE_TRACE],
3449 ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE],
3450 ioc->diag_buffer_dma[MPI2_DIAG_BUF_TYPE_TRACE]);
3451 ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE] =
3452 NULL;
3453 }
3454
3455 diag_register.requested_buffer_size = (1024 * 1024);
3456 }
3457
3458 diag_register.unique_id =
3459 (ioc->hba_mpi_version_belonged == MPI2_VERSION) ?
3460 (MPT2DIAGBUFFUNIQUEID):(MPT3DIAGBUFFUNIQUEID);
3461 ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] = 0;
3462 _ctl_diag_register_2(ioc, &diag_register);
3463 if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3464 MPT3_DIAG_BUFFER_IS_REGISTERED) {
3465 ioc_info(ioc,
3466 "Trace buffer %d KB allocated through sysfs\n",
3467 diag_register.requested_buffer_size>>10);
3468 if (ioc->hba_mpi_version_belonged != MPI2_VERSION)
3469 ioc->diag_buffer_status[
3470 MPI2_DIAG_BUF_TYPE_TRACE] |=
3471 MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED;
3472 }
3473 } else if (!strcmp(str, "release")) {
3474 /* exit out if host buffers are already released */
3475 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE])
3476 goto out;
3477 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3478 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0)
3479 goto out;
3480 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3481 MPT3_DIAG_BUFFER_IS_RELEASED))
3482 goto out;
3483 ioc_info(ioc, "releasing host trace buffer\n");
3484 ioc->htb_rel.buffer_rel_condition = MPT3_DIAG_BUFFER_REL_SYSFS;
3485 mpt3sas_send_diag_release(ioc, MPI2_DIAG_BUF_TYPE_TRACE,
3486 &issue_reset);
3487 }
3488
3489 out:
3490 return strlen(buf);
3491 }
3492 static DEVICE_ATTR_RW(host_trace_buffer_enable);
3493
3494 /*********** diagnostic trigger suppport *********************************/
3495
3496 /**
3497 * diag_trigger_master_show - show the diag_trigger_master attribute
3498 * @cdev: pointer to embedded class device
3499 * @attr: ?
3500 * @buf: the buffer returned
3501 *
3502 * A sysfs 'read/write' shost attribute.
3503 */
3504 static ssize_t
diag_trigger_master_show(struct device * cdev,struct device_attribute * attr,char * buf)3505 diag_trigger_master_show(struct device *cdev,
3506 struct device_attribute *attr, char *buf)
3507
3508 {
3509 struct Scsi_Host *shost = class_to_shost(cdev);
3510 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3511 unsigned long flags;
3512 ssize_t rc;
3513
3514 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3515 rc = sizeof(struct SL_WH_MASTER_TRIGGER_T);
3516 memcpy(buf, &ioc->diag_trigger_master, rc);
3517 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3518 return rc;
3519 }
3520
3521 /**
3522 * diag_trigger_master_store - store the diag_trigger_master attribute
3523 * @cdev: pointer to embedded class device
3524 * @attr: ?
3525 * @buf: the buffer returned
3526 * @count: ?
3527 *
3528 * A sysfs 'read/write' shost attribute.
3529 */
3530 static ssize_t
diag_trigger_master_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3531 diag_trigger_master_store(struct device *cdev,
3532 struct device_attribute *attr, const char *buf, size_t count)
3533
3534 {
3535 struct Scsi_Host *shost = class_to_shost(cdev);
3536 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3537 struct SL_WH_MASTER_TRIGGER_T *master_tg;
3538 unsigned long flags;
3539 ssize_t rc;
3540 bool set = 1;
3541
3542 rc = min(sizeof(struct SL_WH_MASTER_TRIGGER_T), count);
3543
3544 if (ioc->supports_trigger_pages) {
3545 master_tg = kzalloc(sizeof(struct SL_WH_MASTER_TRIGGER_T),
3546 GFP_KERNEL);
3547 if (!master_tg)
3548 return -ENOMEM;
3549
3550 memcpy(master_tg, buf, rc);
3551 if (!master_tg->MasterData)
3552 set = 0;
3553 if (mpt3sas_config_update_driver_trigger_pg1(ioc, master_tg,
3554 set)) {
3555 kfree(master_tg);
3556 return -EFAULT;
3557 }
3558 kfree(master_tg);
3559 }
3560
3561 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3562 memset(&ioc->diag_trigger_master, 0,
3563 sizeof(struct SL_WH_MASTER_TRIGGER_T));
3564 memcpy(&ioc->diag_trigger_master, buf, rc);
3565 ioc->diag_trigger_master.MasterData |=
3566 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
3567 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3568 return rc;
3569 }
3570 static DEVICE_ATTR_RW(diag_trigger_master);
3571
3572
3573 /**
3574 * diag_trigger_event_show - show the diag_trigger_event attribute
3575 * @cdev: pointer to embedded class device
3576 * @attr: ?
3577 * @buf: the buffer returned
3578 *
3579 * A sysfs 'read/write' shost attribute.
3580 */
3581 static ssize_t
diag_trigger_event_show(struct device * cdev,struct device_attribute * attr,char * buf)3582 diag_trigger_event_show(struct device *cdev,
3583 struct device_attribute *attr, char *buf)
3584 {
3585 struct Scsi_Host *shost = class_to_shost(cdev);
3586 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3587 unsigned long flags;
3588 ssize_t rc;
3589
3590 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3591 rc = sizeof(struct SL_WH_EVENT_TRIGGERS_T);
3592 memcpy(buf, &ioc->diag_trigger_event, rc);
3593 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3594 return rc;
3595 }
3596
3597 /**
3598 * diag_trigger_event_store - store the diag_trigger_event attribute
3599 * @cdev: pointer to embedded class device
3600 * @attr: ?
3601 * @buf: the buffer returned
3602 * @count: ?
3603 *
3604 * A sysfs 'read/write' shost attribute.
3605 */
3606 static ssize_t
diag_trigger_event_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3607 diag_trigger_event_store(struct device *cdev,
3608 struct device_attribute *attr, const char *buf, size_t count)
3609
3610 {
3611 struct Scsi_Host *shost = class_to_shost(cdev);
3612 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3613 struct SL_WH_EVENT_TRIGGERS_T *event_tg;
3614 unsigned long flags;
3615 ssize_t sz;
3616 bool set = 1;
3617
3618 sz = min(sizeof(struct SL_WH_EVENT_TRIGGERS_T), count);
3619 if (ioc->supports_trigger_pages) {
3620 event_tg = kzalloc(sizeof(struct SL_WH_EVENT_TRIGGERS_T),
3621 GFP_KERNEL);
3622 if (!event_tg)
3623 return -ENOMEM;
3624
3625 memcpy(event_tg, buf, sz);
3626 if (!event_tg->ValidEntries)
3627 set = 0;
3628 if (mpt3sas_config_update_driver_trigger_pg2(ioc, event_tg,
3629 set)) {
3630 kfree(event_tg);
3631 return -EFAULT;
3632 }
3633 kfree(event_tg);
3634 }
3635
3636 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3637
3638 memset(&ioc->diag_trigger_event, 0,
3639 sizeof(struct SL_WH_EVENT_TRIGGERS_T));
3640 memcpy(&ioc->diag_trigger_event, buf, sz);
3641 if (ioc->diag_trigger_event.ValidEntries > NUM_VALID_ENTRIES)
3642 ioc->diag_trigger_event.ValidEntries = NUM_VALID_ENTRIES;
3643 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3644 return sz;
3645 }
3646 static DEVICE_ATTR_RW(diag_trigger_event);
3647
3648
3649 /**
3650 * diag_trigger_scsi_show - show the diag_trigger_scsi attribute
3651 * @cdev: pointer to embedded class device
3652 * @attr: ?
3653 * @buf: the buffer returned
3654 *
3655 * A sysfs 'read/write' shost attribute.
3656 */
3657 static ssize_t
diag_trigger_scsi_show(struct device * cdev,struct device_attribute * attr,char * buf)3658 diag_trigger_scsi_show(struct device *cdev,
3659 struct device_attribute *attr, char *buf)
3660 {
3661 struct Scsi_Host *shost = class_to_shost(cdev);
3662 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3663 unsigned long flags;
3664 ssize_t rc;
3665
3666 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3667 rc = sizeof(struct SL_WH_SCSI_TRIGGERS_T);
3668 memcpy(buf, &ioc->diag_trigger_scsi, rc);
3669 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3670 return rc;
3671 }
3672
3673 /**
3674 * diag_trigger_scsi_store - store the diag_trigger_scsi attribute
3675 * @cdev: pointer to embedded class device
3676 * @attr: ?
3677 * @buf: the buffer returned
3678 * @count: ?
3679 *
3680 * A sysfs 'read/write' shost attribute.
3681 */
3682 static ssize_t
diag_trigger_scsi_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3683 diag_trigger_scsi_store(struct device *cdev,
3684 struct device_attribute *attr, const char *buf, size_t count)
3685 {
3686 struct Scsi_Host *shost = class_to_shost(cdev);
3687 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3688 struct SL_WH_SCSI_TRIGGERS_T *scsi_tg;
3689 unsigned long flags;
3690 ssize_t sz;
3691 bool set = 1;
3692
3693 sz = min(sizeof(struct SL_WH_SCSI_TRIGGERS_T), count);
3694 if (ioc->supports_trigger_pages) {
3695 scsi_tg = kzalloc(sizeof(struct SL_WH_SCSI_TRIGGERS_T),
3696 GFP_KERNEL);
3697 if (!scsi_tg)
3698 return -ENOMEM;
3699
3700 memcpy(scsi_tg, buf, sz);
3701 if (!scsi_tg->ValidEntries)
3702 set = 0;
3703 if (mpt3sas_config_update_driver_trigger_pg3(ioc, scsi_tg,
3704 set)) {
3705 kfree(scsi_tg);
3706 return -EFAULT;
3707 }
3708 kfree(scsi_tg);
3709 }
3710
3711 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3712
3713 memset(&ioc->diag_trigger_scsi, 0, sizeof(ioc->diag_trigger_scsi));
3714 memcpy(&ioc->diag_trigger_scsi, buf, sz);
3715 if (ioc->diag_trigger_scsi.ValidEntries > NUM_VALID_ENTRIES)
3716 ioc->diag_trigger_scsi.ValidEntries = NUM_VALID_ENTRIES;
3717 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3718 return sz;
3719 }
3720 static DEVICE_ATTR_RW(diag_trigger_scsi);
3721
3722
3723 /**
3724 * diag_trigger_mpi_show - show the diag_trigger_mpi attribute
3725 * @cdev: pointer to embedded class device
3726 * @attr: ?
3727 * @buf: the buffer returned
3728 *
3729 * A sysfs 'read/write' shost attribute.
3730 */
3731 static ssize_t
diag_trigger_mpi_show(struct device * cdev,struct device_attribute * attr,char * buf)3732 diag_trigger_mpi_show(struct device *cdev,
3733 struct device_attribute *attr, char *buf)
3734 {
3735 struct Scsi_Host *shost = class_to_shost(cdev);
3736 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3737 unsigned long flags;
3738 ssize_t rc;
3739
3740 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3741 rc = sizeof(struct SL_WH_MPI_TRIGGERS_T);
3742 memcpy(buf, &ioc->diag_trigger_mpi, rc);
3743 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3744 return rc;
3745 }
3746
3747 /**
3748 * diag_trigger_mpi_store - store the diag_trigger_mpi attribute
3749 * @cdev: pointer to embedded class device
3750 * @attr: ?
3751 * @buf: the buffer returned
3752 * @count: ?
3753 *
3754 * A sysfs 'read/write' shost attribute.
3755 */
3756 static ssize_t
diag_trigger_mpi_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3757 diag_trigger_mpi_store(struct device *cdev,
3758 struct device_attribute *attr, const char *buf, size_t count)
3759 {
3760 struct Scsi_Host *shost = class_to_shost(cdev);
3761 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3762 struct SL_WH_MPI_TRIGGERS_T *mpi_tg;
3763 unsigned long flags;
3764 ssize_t sz;
3765 bool set = 1;
3766
3767 sz = min(sizeof(struct SL_WH_MPI_TRIGGERS_T), count);
3768 if (ioc->supports_trigger_pages) {
3769 mpi_tg = kzalloc(sizeof(struct SL_WH_MPI_TRIGGERS_T),
3770 GFP_KERNEL);
3771 if (!mpi_tg)
3772 return -ENOMEM;
3773
3774 memcpy(mpi_tg, buf, sz);
3775 if (!mpi_tg->ValidEntries)
3776 set = 0;
3777 if (mpt3sas_config_update_driver_trigger_pg4(ioc, mpi_tg,
3778 set)) {
3779 kfree(mpi_tg);
3780 return -EFAULT;
3781 }
3782 kfree(mpi_tg);
3783 }
3784
3785 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3786 memset(&ioc->diag_trigger_mpi, 0,
3787 sizeof(ioc->diag_trigger_mpi));
3788 memcpy(&ioc->diag_trigger_mpi, buf, sz);
3789 if (ioc->diag_trigger_mpi.ValidEntries > NUM_VALID_ENTRIES)
3790 ioc->diag_trigger_mpi.ValidEntries = NUM_VALID_ENTRIES;
3791 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3792 return sz;
3793 }
3794
3795 static DEVICE_ATTR_RW(diag_trigger_mpi);
3796
3797 /*********** diagnostic trigger suppport *** END ****************************/
3798
3799 /*****************************************/
3800
3801 /**
3802 * drv_support_bitmap_show - driver supported feature bitmap
3803 * @cdev: pointer to embedded class device
3804 * @attr: unused
3805 * @buf: the buffer returned
3806 *
3807 * A sysfs 'read-only' shost attribute.
3808 */
3809 static ssize_t
drv_support_bitmap_show(struct device * cdev,struct device_attribute * attr,char * buf)3810 drv_support_bitmap_show(struct device *cdev,
3811 struct device_attribute *attr, char *buf)
3812 {
3813 struct Scsi_Host *shost = class_to_shost(cdev);
3814 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3815
3816 return snprintf(buf, PAGE_SIZE, "0x%08x\n", ioc->drv_support_bitmap);
3817 }
3818 static DEVICE_ATTR_RO(drv_support_bitmap);
3819
3820 /**
3821 * enable_sdev_max_qd_show - display whether sdev max qd is enabled/disabled
3822 * @cdev: pointer to embedded class device
3823 * @attr: unused
3824 * @buf: the buffer returned
3825 *
3826 * A sysfs read/write shost attribute. This attribute is used to set the
3827 * targets queue depth to HBA IO queue depth if this attribute is enabled.
3828 */
3829 static ssize_t
enable_sdev_max_qd_show(struct device * cdev,struct device_attribute * attr,char * buf)3830 enable_sdev_max_qd_show(struct device *cdev,
3831 struct device_attribute *attr, char *buf)
3832 {
3833 struct Scsi_Host *shost = class_to_shost(cdev);
3834 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3835
3836 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->enable_sdev_max_qd);
3837 }
3838
3839 /**
3840 * enable_sdev_max_qd_store - Enable/disable sdev max qd
3841 * @cdev: pointer to embedded class device
3842 * @attr: unused
3843 * @buf: the buffer returned
3844 * @count: unused
3845 *
3846 * A sysfs read/write shost attribute. This attribute is used to set the
3847 * targets queue depth to HBA IO queue depth if this attribute is enabled.
3848 * If this attribute is disabled then targets will have corresponding default
3849 * queue depth.
3850 */
3851 static ssize_t
enable_sdev_max_qd_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3852 enable_sdev_max_qd_store(struct device *cdev,
3853 struct device_attribute *attr, const char *buf, size_t count)
3854 {
3855 struct Scsi_Host *shost = class_to_shost(cdev);
3856 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3857 struct MPT3SAS_DEVICE *sas_device_priv_data;
3858 struct MPT3SAS_TARGET *sas_target_priv_data;
3859 int val = 0;
3860 struct scsi_device *sdev;
3861 struct _raid_device *raid_device;
3862 int qdepth;
3863
3864 if (kstrtoint(buf, 0, &val) != 0)
3865 return -EINVAL;
3866
3867 switch (val) {
3868 case 0:
3869 ioc->enable_sdev_max_qd = 0;
3870 shost_for_each_device(sdev, ioc->shost) {
3871 sas_device_priv_data = sdev->hostdata;
3872 if (!sas_device_priv_data)
3873 continue;
3874 sas_target_priv_data = sas_device_priv_data->sas_target;
3875 if (!sas_target_priv_data)
3876 continue;
3877
3878 if (sas_target_priv_data->flags &
3879 MPT_TARGET_FLAGS_VOLUME) {
3880 raid_device =
3881 mpt3sas_raid_device_find_by_handle(ioc,
3882 sas_target_priv_data->handle);
3883
3884 switch (raid_device->volume_type) {
3885 case MPI2_RAID_VOL_TYPE_RAID0:
3886 if (raid_device->device_info &
3887 MPI2_SAS_DEVICE_INFO_SSP_TARGET)
3888 qdepth =
3889 MPT3SAS_SAS_QUEUE_DEPTH;
3890 else
3891 qdepth =
3892 MPT3SAS_SATA_QUEUE_DEPTH;
3893 break;
3894 case MPI2_RAID_VOL_TYPE_RAID1E:
3895 case MPI2_RAID_VOL_TYPE_RAID1:
3896 case MPI2_RAID_VOL_TYPE_RAID10:
3897 case MPI2_RAID_VOL_TYPE_UNKNOWN:
3898 default:
3899 qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
3900 }
3901 } else if (sas_target_priv_data->flags &
3902 MPT_TARGET_FLAGS_PCIE_DEVICE)
3903 qdepth = ioc->max_nvme_qd;
3904 else
3905 qdepth = (sas_target_priv_data->sas_dev->port_type > 1) ?
3906 ioc->max_wideport_qd : ioc->max_narrowport_qd;
3907
3908 mpt3sas_scsih_change_queue_depth(sdev, qdepth);
3909 }
3910 break;
3911 case 1:
3912 ioc->enable_sdev_max_qd = 1;
3913 shost_for_each_device(sdev, ioc->shost)
3914 mpt3sas_scsih_change_queue_depth(sdev,
3915 shost->can_queue);
3916 break;
3917 default:
3918 return -EINVAL;
3919 }
3920
3921 return strlen(buf);
3922 }
3923 static DEVICE_ATTR_RW(enable_sdev_max_qd);
3924
3925 static struct attribute *mpt3sas_host_attrs[] = {
3926 &dev_attr_version_fw.attr,
3927 &dev_attr_version_bios.attr,
3928 &dev_attr_version_mpi.attr,
3929 &dev_attr_version_product.attr,
3930 &dev_attr_version_nvdata_persistent.attr,
3931 &dev_attr_version_nvdata_default.attr,
3932 &dev_attr_board_name.attr,
3933 &dev_attr_board_assembly.attr,
3934 &dev_attr_board_tracer.attr,
3935 &dev_attr_io_delay.attr,
3936 &dev_attr_device_delay.attr,
3937 &dev_attr_logging_level.attr,
3938 &dev_attr_fwfault_debug.attr,
3939 &dev_attr_fw_queue_depth.attr,
3940 &dev_attr_host_sas_address.attr,
3941 &dev_attr_ioc_reset_count.attr,
3942 &dev_attr_host_trace_buffer_size.attr,
3943 &dev_attr_host_trace_buffer.attr,
3944 &dev_attr_host_trace_buffer_enable.attr,
3945 &dev_attr_reply_queue_count.attr,
3946 &dev_attr_diag_trigger_master.attr,
3947 &dev_attr_diag_trigger_event.attr,
3948 &dev_attr_diag_trigger_scsi.attr,
3949 &dev_attr_diag_trigger_mpi.attr,
3950 &dev_attr_drv_support_bitmap.attr,
3951 &dev_attr_BRM_status.attr,
3952 &dev_attr_enable_sdev_max_qd.attr,
3953 NULL,
3954 };
3955
3956 static const struct attribute_group mpt3sas_host_attr_group = {
3957 .attrs = mpt3sas_host_attrs
3958 };
3959
3960 const struct attribute_group *mpt3sas_host_groups[] = {
3961 &mpt3sas_host_attr_group,
3962 NULL
3963 };
3964
3965 /* device attributes */
3966
3967 /**
3968 * sas_address_show - sas address
3969 * @dev: pointer to embedded class device
3970 * @attr: ?
3971 * @buf: the buffer returned
3972 *
3973 * This is the sas address for the target
3974 *
3975 * A sysfs 'read-only' shost attribute.
3976 */
3977 static ssize_t
sas_address_show(struct device * dev,struct device_attribute * attr,char * buf)3978 sas_address_show(struct device *dev, struct device_attribute *attr,
3979 char *buf)
3980 {
3981 struct scsi_device *sdev = to_scsi_device(dev);
3982 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3983
3984 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
3985 (unsigned long long)sas_device_priv_data->sas_target->sas_address);
3986 }
3987 static DEVICE_ATTR_RO(sas_address);
3988
3989 /**
3990 * sas_device_handle_show - device handle
3991 * @dev: pointer to embedded class device
3992 * @attr: ?
3993 * @buf: the buffer returned
3994 *
3995 * This is the firmware assigned device handle
3996 *
3997 * A sysfs 'read-only' shost attribute.
3998 */
3999 static ssize_t
sas_device_handle_show(struct device * dev,struct device_attribute * attr,char * buf)4000 sas_device_handle_show(struct device *dev, struct device_attribute *attr,
4001 char *buf)
4002 {
4003 struct scsi_device *sdev = to_scsi_device(dev);
4004 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
4005
4006 return snprintf(buf, PAGE_SIZE, "0x%04x\n",
4007 sas_device_priv_data->sas_target->handle);
4008 }
4009 static DEVICE_ATTR_RO(sas_device_handle);
4010
4011 /**
4012 * sas_ncq_prio_supported_show - Indicate if device supports NCQ priority
4013 * @dev: pointer to embedded device
4014 * @attr: sas_ncq_prio_supported attribute descriptor
4015 * @buf: the buffer returned
4016 *
4017 * A sysfs 'read-only' sdev attribute, only works with SATA
4018 */
4019 static ssize_t
sas_ncq_prio_supported_show(struct device * dev,struct device_attribute * attr,char * buf)4020 sas_ncq_prio_supported_show(struct device *dev,
4021 struct device_attribute *attr, char *buf)
4022 {
4023 struct scsi_device *sdev = to_scsi_device(dev);
4024
4025 return sysfs_emit(buf, "%d\n", scsih_ncq_prio_supp(sdev));
4026 }
4027 static DEVICE_ATTR_RO(sas_ncq_prio_supported);
4028
4029 /**
4030 * sas_ncq_prio_enable_show - send prioritized io commands to device
4031 * @dev: pointer to embedded device
4032 * @attr: ?
4033 * @buf: the buffer returned
4034 *
4035 * A sysfs 'read/write' sdev attribute, only works with SATA
4036 */
4037 static ssize_t
sas_ncq_prio_enable_show(struct device * dev,struct device_attribute * attr,char * buf)4038 sas_ncq_prio_enable_show(struct device *dev,
4039 struct device_attribute *attr, char *buf)
4040 {
4041 struct scsi_device *sdev = to_scsi_device(dev);
4042 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
4043
4044 return snprintf(buf, PAGE_SIZE, "%d\n",
4045 sas_device_priv_data->ncq_prio_enable);
4046 }
4047
4048 static ssize_t
sas_ncq_prio_enable_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)4049 sas_ncq_prio_enable_store(struct device *dev,
4050 struct device_attribute *attr,
4051 const char *buf, size_t count)
4052 {
4053 struct scsi_device *sdev = to_scsi_device(dev);
4054 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
4055 bool ncq_prio_enable = 0;
4056
4057 if (kstrtobool(buf, &ncq_prio_enable))
4058 return -EINVAL;
4059
4060 if (!scsih_ncq_prio_supp(sdev))
4061 return -EINVAL;
4062
4063 sas_device_priv_data->ncq_prio_enable = ncq_prio_enable;
4064 return strlen(buf);
4065 }
4066 static DEVICE_ATTR_RW(sas_ncq_prio_enable);
4067
4068 static struct attribute *mpt3sas_dev_attrs[] = {
4069 &dev_attr_sas_address.attr,
4070 &dev_attr_sas_device_handle.attr,
4071 &dev_attr_sas_ncq_prio_supported.attr,
4072 &dev_attr_sas_ncq_prio_enable.attr,
4073 NULL,
4074 };
4075
4076 static const struct attribute_group mpt3sas_dev_attr_group = {
4077 .attrs = mpt3sas_dev_attrs
4078 };
4079
4080 const struct attribute_group *mpt3sas_dev_groups[] = {
4081 &mpt3sas_dev_attr_group,
4082 NULL
4083 };
4084
4085 /* file operations table for mpt3ctl device */
4086 static const struct file_operations ctl_fops = {
4087 .owner = THIS_MODULE,
4088 .unlocked_ioctl = _ctl_ioctl,
4089 .poll = _ctl_poll,
4090 .fasync = _ctl_fasync,
4091 #ifdef CONFIG_COMPAT
4092 .compat_ioctl = _ctl_ioctl_compat,
4093 #endif
4094 };
4095
4096 /* file operations table for mpt2ctl device */
4097 static const struct file_operations ctl_gen2_fops = {
4098 .owner = THIS_MODULE,
4099 .unlocked_ioctl = _ctl_mpt2_ioctl,
4100 .poll = _ctl_poll,
4101 .fasync = _ctl_fasync,
4102 #ifdef CONFIG_COMPAT
4103 .compat_ioctl = _ctl_mpt2_ioctl_compat,
4104 #endif
4105 };
4106
4107 static struct miscdevice ctl_dev = {
4108 .minor = MPT3SAS_MINOR,
4109 .name = MPT3SAS_DEV_NAME,
4110 .fops = &ctl_fops,
4111 };
4112
4113 static struct miscdevice gen2_ctl_dev = {
4114 .minor = MPT2SAS_MINOR,
4115 .name = MPT2SAS_DEV_NAME,
4116 .fops = &ctl_gen2_fops,
4117 };
4118
4119 /**
4120 * mpt3sas_ctl_init - main entry point for ctl.
4121 * @hbas_to_enumerate: ?
4122 */
4123 void
mpt3sas_ctl_init(ushort hbas_to_enumerate)4124 mpt3sas_ctl_init(ushort hbas_to_enumerate)
4125 {
4126 async_queue = NULL;
4127
4128 /* Don't register mpt3ctl ioctl device if
4129 * hbas_to_enumarate is one.
4130 */
4131 if (hbas_to_enumerate != 1)
4132 if (misc_register(&ctl_dev) < 0)
4133 pr_err("%s can't register misc device [minor=%d]\n",
4134 MPT3SAS_DRIVER_NAME, MPT3SAS_MINOR);
4135
4136 /* Don't register mpt3ctl ioctl device if
4137 * hbas_to_enumarate is two.
4138 */
4139 if (hbas_to_enumerate != 2)
4140 if (misc_register(&gen2_ctl_dev) < 0)
4141 pr_err("%s can't register misc device [minor=%d]\n",
4142 MPT2SAS_DRIVER_NAME, MPT2SAS_MINOR);
4143
4144 init_waitqueue_head(&ctl_poll_wait);
4145 }
4146
4147 /**
4148 * mpt3sas_ctl_exit - exit point for ctl
4149 * @hbas_to_enumerate: ?
4150 */
4151 void
mpt3sas_ctl_exit(ushort hbas_to_enumerate)4152 mpt3sas_ctl_exit(ushort hbas_to_enumerate)
4153 {
4154 struct MPT3SAS_ADAPTER *ioc;
4155 int i;
4156
4157 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
4158
4159 /* free memory associated to diag buffers */
4160 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
4161 if (!ioc->diag_buffer[i])
4162 continue;
4163 dma_free_coherent(&ioc->pdev->dev,
4164 ioc->diag_buffer_sz[i],
4165 ioc->diag_buffer[i],
4166 ioc->diag_buffer_dma[i]);
4167 ioc->diag_buffer[i] = NULL;
4168 ioc->diag_buffer_status[i] = 0;
4169 }
4170
4171 kfree(ioc->event_log);
4172 }
4173 if (hbas_to_enumerate != 1)
4174 misc_deregister(&ctl_dev);
4175 if (hbas_to_enumerate != 2)
4176 misc_deregister(&gen2_ctl_dev);
4177 }
4178