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 int tm_ret;
683
684 issue_reset = 0;
685
686 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
687 ioc_err(ioc, "%s: ctl_cmd in use\n", __func__);
688 ret = -EAGAIN;
689 goto out;
690 }
691
692 ret = mpt3sas_wait_for_ioc(ioc, IOC_OPERATIONAL_WAIT_COUNT);
693 if (ret)
694 goto out;
695
696 mpi_request = kzalloc(ioc->request_sz, GFP_KERNEL);
697 if (!mpi_request) {
698 ioc_err(ioc, "%s: failed obtaining a memory for mpi_request\n",
699 __func__);
700 ret = -ENOMEM;
701 goto out;
702 }
703
704 /* Check for overflow and wraparound */
705 if (karg.data_sge_offset * 4 > ioc->request_sz ||
706 karg.data_sge_offset > (UINT_MAX / 4)) {
707 ret = -EINVAL;
708 goto out;
709 }
710
711 /* copy in request message frame from user */
712 if (copy_from_user(mpi_request, mf, karg.data_sge_offset*4)) {
713 pr_err("failure at %s:%d/%s()!\n", __FILE__, __LINE__,
714 __func__);
715 ret = -EFAULT;
716 goto out;
717 }
718
719 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
720 smid = mpt3sas_base_get_smid_hpr(ioc, ioc->ctl_cb_idx);
721 if (!smid) {
722 ioc_err(ioc, "%s: failed obtaining a smid\n", __func__);
723 ret = -EAGAIN;
724 goto out;
725 }
726 } else {
727 /* Use first reserved smid for passthrough ioctls */
728 smid = ioc->scsiio_depth - INTERNAL_SCSIIO_CMDS_COUNT + 1;
729 }
730
731 ret = 0;
732 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
733 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
734 request = mpt3sas_base_get_msg_frame(ioc, smid);
735 memset(request, 0, ioc->request_sz);
736 memcpy(request, mpi_request, karg.data_sge_offset*4);
737 ioc->ctl_cmds.smid = smid;
738 data_out_sz = karg.data_out_size;
739 data_in_sz = karg.data_in_size;
740
741 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
742 mpi_request->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
743 mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT ||
744 mpi_request->Function == MPI2_FUNCTION_SATA_PASSTHROUGH ||
745 mpi_request->Function == MPI2_FUNCTION_NVME_ENCAPSULATED) {
746
747 device_handle = le16_to_cpu(mpi_request->FunctionDependent1);
748 if (!device_handle || (device_handle >
749 ioc->facts.MaxDevHandle)) {
750 ret = -EINVAL;
751 mpt3sas_base_free_smid(ioc, smid);
752 goto out;
753 }
754 }
755
756 /* obtain dma-able memory for data transfer */
757 if (data_out_sz) /* WRITE */ {
758 data_out = dma_alloc_coherent(&ioc->pdev->dev, data_out_sz,
759 &data_out_dma, GFP_KERNEL);
760 if (!data_out) {
761 pr_err("failure at %s:%d/%s()!\n", __FILE__,
762 __LINE__, __func__);
763 ret = -ENOMEM;
764 mpt3sas_base_free_smid(ioc, smid);
765 goto out;
766 }
767 if (copy_from_user(data_out, karg.data_out_buf_ptr,
768 data_out_sz)) {
769 pr_err("failure at %s:%d/%s()!\n", __FILE__,
770 __LINE__, __func__);
771 ret = -EFAULT;
772 mpt3sas_base_free_smid(ioc, smid);
773 goto out;
774 }
775 }
776
777 if (data_in_sz) /* READ */ {
778 data_in = dma_alloc_coherent(&ioc->pdev->dev, data_in_sz,
779 &data_in_dma, GFP_KERNEL);
780 if (!data_in) {
781 pr_err("failure at %s:%d/%s()!\n", __FILE__,
782 __LINE__, __func__);
783 ret = -ENOMEM;
784 mpt3sas_base_free_smid(ioc, smid);
785 goto out;
786 }
787 }
788
789 psge = (void *)request + (karg.data_sge_offset*4);
790
791 /* send command to firmware */
792 _ctl_display_some_debug(ioc, smid, "ctl_request", NULL);
793
794 init_completion(&ioc->ctl_cmds.done);
795 switch (mpi_request->Function) {
796 case MPI2_FUNCTION_NVME_ENCAPSULATED:
797 {
798 nvme_encap_request = (Mpi26NVMeEncapsulatedRequest_t *)request;
799 if (!ioc->pcie_sg_lookup) {
800 dtmprintk(ioc, ioc_info(ioc,
801 "HBA doesn't support NVMe. Rejecting NVMe Encapsulated request.\n"
802 ));
803
804 if (ioc->logging_level & MPT_DEBUG_TM)
805 _debug_dump_mf(nvme_encap_request,
806 ioc->request_sz/4);
807 mpt3sas_base_free_smid(ioc, smid);
808 ret = -EINVAL;
809 goto out;
810 }
811 /*
812 * Get the Physical Address of the sense buffer.
813 * Use Error Response buffer address field to hold the sense
814 * buffer address.
815 * Clear the internal sense buffer, which will potentially hold
816 * the Completion Queue Entry on return, or 0 if no Entry.
817 * Build the PRPs and set direction bits.
818 * Send the request.
819 */
820 nvme_encap_request->ErrorResponseBaseAddress =
821 cpu_to_le64(ioc->sense_dma & 0xFFFFFFFF00000000UL);
822 nvme_encap_request->ErrorResponseBaseAddress |=
823 cpu_to_le64(le32_to_cpu(
824 mpt3sas_base_get_sense_buffer_dma(ioc, smid)));
825 nvme_encap_request->ErrorResponseAllocationLength =
826 cpu_to_le16(NVME_ERROR_RESPONSE_SIZE);
827 memset(ioc->ctl_cmds.sense, 0, NVME_ERROR_RESPONSE_SIZE);
828 ioc->build_nvme_prp(ioc, smid, nvme_encap_request,
829 data_out_dma, data_out_sz, data_in_dma, data_in_sz);
830 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
831 dtmprintk(ioc,
832 ioc_info(ioc, "handle(0x%04x): ioctl failed due to device removal in progress\n",
833 device_handle));
834 mpt3sas_base_free_smid(ioc, smid);
835 ret = -EINVAL;
836 goto out;
837 }
838 mpt3sas_base_put_smid_nvme_encap(ioc, smid);
839 break;
840 }
841 case MPI2_FUNCTION_SCSI_IO_REQUEST:
842 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
843 {
844 Mpi2SCSIIORequest_t *scsiio_request =
845 (Mpi2SCSIIORequest_t *)request;
846 scsiio_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
847 scsiio_request->SenseBufferLowAddress =
848 mpt3sas_base_get_sense_buffer_dma(ioc, smid);
849 memset(ioc->ctl_cmds.sense, 0, SCSI_SENSE_BUFFERSIZE);
850 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
851 dtmprintk(ioc,
852 ioc_info(ioc, "handle(0x%04x) :ioctl failed due to device removal in progress\n",
853 device_handle));
854 mpt3sas_base_free_smid(ioc, smid);
855 ret = -EINVAL;
856 goto out;
857 }
858 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
859 data_in_dma, data_in_sz);
860 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)
861 ioc->put_smid_scsi_io(ioc, smid, device_handle);
862 else
863 ioc->put_smid_default(ioc, smid);
864 break;
865 }
866 case MPI2_FUNCTION_SCSI_TASK_MGMT:
867 {
868 Mpi2SCSITaskManagementRequest_t *tm_request =
869 (Mpi2SCSITaskManagementRequest_t *)request;
870
871 dtmprintk(ioc,
872 ioc_info(ioc, "TASK_MGMT: handle(0x%04x), task_type(0x%02x)\n",
873 le16_to_cpu(tm_request->DevHandle),
874 tm_request->TaskType));
875 ioc->got_task_abort_from_ioctl = 1;
876 if (tm_request->TaskType ==
877 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK ||
878 tm_request->TaskType ==
879 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) {
880 if (_ctl_set_task_mid(ioc, &karg, tm_request)) {
881 mpt3sas_base_free_smid(ioc, smid);
882 ioc->got_task_abort_from_ioctl = 0;
883 goto out;
884 }
885 }
886 ioc->got_task_abort_from_ioctl = 0;
887
888 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
889 dtmprintk(ioc,
890 ioc_info(ioc, "handle(0x%04x) :ioctl failed due to device removal in progress\n",
891 device_handle));
892 mpt3sas_base_free_smid(ioc, smid);
893 ret = -EINVAL;
894 goto out;
895 }
896 mpt3sas_scsih_set_tm_flag(ioc, le16_to_cpu(
897 tm_request->DevHandle));
898 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
899 data_in_dma, data_in_sz);
900 ioc->put_smid_hi_priority(ioc, smid, 0);
901 break;
902 }
903 case MPI2_FUNCTION_SMP_PASSTHROUGH:
904 {
905 Mpi2SmpPassthroughRequest_t *smp_request =
906 (Mpi2SmpPassthroughRequest_t *)mpi_request;
907 u8 *data;
908
909 if (!ioc->multipath_on_hba) {
910 /* ioc determines which port to use */
911 smp_request->PhysicalPort = 0xFF;
912 }
913 if (smp_request->PassthroughFlags &
914 MPI2_SMP_PT_REQ_PT_FLAGS_IMMEDIATE)
915 data = (u8 *)&smp_request->SGL;
916 else {
917 if (unlikely(data_out == NULL)) {
918 pr_err("failure at %s:%d/%s()!\n",
919 __FILE__, __LINE__, __func__);
920 mpt3sas_base_free_smid(ioc, smid);
921 ret = -EINVAL;
922 goto out;
923 }
924 data = data_out;
925 }
926
927 if (data[1] == 0x91 && (data[10] == 1 || data[10] == 2)) {
928 ioc->ioc_link_reset_in_progress = 1;
929 ioc->ignore_loginfos = 1;
930 }
931 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
932 data_in_sz);
933 ioc->put_smid_default(ioc, smid);
934 break;
935 }
936 case MPI2_FUNCTION_SATA_PASSTHROUGH:
937 {
938 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
939 dtmprintk(ioc,
940 ioc_info(ioc, "handle(0x%04x) :ioctl failed due to device removal in progress\n",
941 device_handle));
942 mpt3sas_base_free_smid(ioc, smid);
943 ret = -EINVAL;
944 goto out;
945 }
946 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
947 data_in_sz);
948 ioc->put_smid_default(ioc, smid);
949 break;
950 }
951 case MPI2_FUNCTION_FW_DOWNLOAD:
952 {
953 if (ioc->pdev->vendor == MPI2_MFGPAGE_VENDORID_ATTO) {
954 ioc_info(ioc, "Firmware download not supported for ATTO HBA.\n");
955 ret = -EPERM;
956 break;
957 }
958 fallthrough;
959 }
960 case MPI2_FUNCTION_FW_UPLOAD:
961 {
962 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
963 data_in_sz);
964 ioc->put_smid_default(ioc, smid);
965 break;
966 }
967 case MPI2_FUNCTION_TOOLBOX:
968 {
969 Mpi2ToolboxCleanRequest_t *toolbox_request =
970 (Mpi2ToolboxCleanRequest_t *)mpi_request;
971
972 if ((toolbox_request->Tool == MPI2_TOOLBOX_DIAGNOSTIC_CLI_TOOL)
973 || (toolbox_request->Tool ==
974 MPI26_TOOLBOX_BACKEND_PCIE_LANE_MARGIN))
975 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
976 data_in_dma, data_in_sz);
977 else if (toolbox_request->Tool ==
978 MPI2_TOOLBOX_MEMORY_MOVE_TOOL) {
979 Mpi2ToolboxMemMoveRequest_t *mem_move_request =
980 (Mpi2ToolboxMemMoveRequest_t *)request;
981 Mpi2SGESimple64_t tmp, *src = NULL, *dst = NULL;
982
983 ioc->build_sg_mpi(ioc, psge, data_out_dma,
984 data_out_sz, data_in_dma, data_in_sz);
985 if (data_out_sz && !data_in_sz) {
986 dst =
987 (Mpi2SGESimple64_t *)&mem_move_request->SGL;
988 src = (void *)dst + ioc->sge_size;
989
990 memcpy(&tmp, src, ioc->sge_size);
991 memcpy(src, dst, ioc->sge_size);
992 memcpy(dst, &tmp, ioc->sge_size);
993 }
994 if (ioc->logging_level & MPT_DEBUG_TM) {
995 ioc_info(ioc,
996 "Mpi2ToolboxMemMoveRequest_t request msg\n");
997 _debug_dump_mf(mem_move_request,
998 ioc->request_sz/4);
999 }
1000 } else
1001 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
1002 data_in_dma, data_in_sz);
1003 ioc->put_smid_default(ioc, smid);
1004 break;
1005 }
1006 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
1007 {
1008 Mpi2SasIoUnitControlRequest_t *sasiounit_request =
1009 (Mpi2SasIoUnitControlRequest_t *)mpi_request;
1010
1011 if (sasiounit_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET
1012 || sasiounit_request->Operation ==
1013 MPI2_SAS_OP_PHY_LINK_RESET) {
1014 ioc->ioc_link_reset_in_progress = 1;
1015 ioc->ignore_loginfos = 1;
1016 }
1017 /* drop to default case for posting the request */
1018 }
1019 fallthrough;
1020 default:
1021 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
1022 data_in_dma, data_in_sz);
1023 ioc->put_smid_default(ioc, smid);
1024 break;
1025 }
1026
1027 if (karg.timeout < MPT3_IOCTL_DEFAULT_TIMEOUT)
1028 timeout = MPT3_IOCTL_DEFAULT_TIMEOUT;
1029 else
1030 timeout = karg.timeout;
1031 wait_for_completion_timeout(&ioc->ctl_cmds.done, timeout*HZ);
1032 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
1033 Mpi2SCSITaskManagementRequest_t *tm_request =
1034 (Mpi2SCSITaskManagementRequest_t *)mpi_request;
1035 mpt3sas_scsih_clear_tm_flag(ioc, le16_to_cpu(
1036 tm_request->DevHandle));
1037 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
1038 } else if ((mpi_request->Function == MPI2_FUNCTION_SMP_PASSTHROUGH ||
1039 mpi_request->Function == MPI2_FUNCTION_SAS_IO_UNIT_CONTROL) &&
1040 ioc->ioc_link_reset_in_progress) {
1041 ioc->ioc_link_reset_in_progress = 0;
1042 ioc->ignore_loginfos = 0;
1043 }
1044 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1045 mpt3sas_check_cmd_timeout(ioc,
1046 ioc->ctl_cmds.status, mpi_request,
1047 karg.data_sge_offset, issue_reset);
1048 goto issue_host_reset;
1049 }
1050
1051 mpi_reply = ioc->ctl_cmds.reply;
1052
1053 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_TASK_MGMT &&
1054 (ioc->logging_level & MPT_DEBUG_TM)) {
1055 Mpi2SCSITaskManagementReply_t *tm_reply =
1056 (Mpi2SCSITaskManagementReply_t *)mpi_reply;
1057
1058 ioc_info(ioc, "TASK_MGMT: IOCStatus(0x%04x), IOCLogInfo(0x%08x), TerminationCount(0x%08x)\n",
1059 le16_to_cpu(tm_reply->IOCStatus),
1060 le32_to_cpu(tm_reply->IOCLogInfo),
1061 le32_to_cpu(tm_reply->TerminationCount));
1062 }
1063
1064 /* copy out xdata to user */
1065 if (data_in_sz) {
1066 if (copy_to_user(karg.data_in_buf_ptr, data_in,
1067 data_in_sz)) {
1068 pr_err("failure at %s:%d/%s()!\n", __FILE__,
1069 __LINE__, __func__);
1070 ret = -ENODATA;
1071 goto out;
1072 }
1073 }
1074
1075 /* copy out reply message frame to user */
1076 if (karg.max_reply_bytes) {
1077 sz = min_t(u32, karg.max_reply_bytes, ioc->reply_sz);
1078 if (copy_to_user(karg.reply_frame_buf_ptr, ioc->ctl_cmds.reply,
1079 sz)) {
1080 pr_err("failure at %s:%d/%s()!\n", __FILE__,
1081 __LINE__, __func__);
1082 ret = -ENODATA;
1083 goto out;
1084 }
1085 }
1086
1087 /* copy out sense/NVMe Error Response to user */
1088 if (karg.max_sense_bytes && (mpi_request->Function ==
1089 MPI2_FUNCTION_SCSI_IO_REQUEST || mpi_request->Function ==
1090 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH || mpi_request->Function ==
1091 MPI2_FUNCTION_NVME_ENCAPSULATED)) {
1092 if (karg.sense_data_ptr == NULL) {
1093 ioc_info(ioc, "Response buffer provided by application is NULL; Response data will not be returned\n");
1094 goto out;
1095 }
1096 sz_arg = (mpi_request->Function ==
1097 MPI2_FUNCTION_NVME_ENCAPSULATED) ? NVME_ERROR_RESPONSE_SIZE :
1098 SCSI_SENSE_BUFFERSIZE;
1099 sz = min_t(u32, karg.max_sense_bytes, sz_arg);
1100 if (copy_to_user(karg.sense_data_ptr, ioc->ctl_cmds.sense,
1101 sz)) {
1102 pr_err("failure at %s:%d/%s()!\n", __FILE__,
1103 __LINE__, __func__);
1104 ret = -ENODATA;
1105 goto out;
1106 }
1107 }
1108
1109 issue_host_reset:
1110 if (issue_reset) {
1111 ret = -ENODATA;
1112 if ((mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
1113 mpi_request->Function ==
1114 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
1115 mpi_request->Function == MPI2_FUNCTION_SATA_PASSTHROUGH)) {
1116 ioc_info(ioc, "issue target reset: handle = (0x%04x)\n",
1117 le16_to_cpu(mpi_request->FunctionDependent1));
1118 mpt3sas_halt_firmware(ioc);
1119 pcie_device = mpt3sas_get_pdev_by_handle(ioc,
1120 le16_to_cpu(mpi_request->FunctionDependent1));
1121 if (pcie_device && (!ioc->tm_custom_handling) &&
1122 (!(mpt3sas_scsih_is_pcie_scsi_device(
1123 pcie_device->device_info))))
1124 tm_ret = mpt3sas_scsih_issue_locked_tm(ioc,
1125 le16_to_cpu(mpi_request->FunctionDependent1),
1126 0, 0, 0,
1127 MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
1128 0, pcie_device->reset_timeout,
1129 MPI26_SCSITASKMGMT_MSGFLAGS_PROTOCOL_LVL_RST_PCIE);
1130 else
1131 tm_ret = mpt3sas_scsih_issue_locked_tm(ioc,
1132 le16_to_cpu(mpi_request->FunctionDependent1),
1133 0, 0, 0,
1134 MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
1135 0, 30, MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET);
1136
1137 if (tm_ret != SUCCESS) {
1138 ioc_info(ioc,
1139 "target reset failed, issue hard reset: handle (0x%04x)\n",
1140 le16_to_cpu(mpi_request->FunctionDependent1));
1141 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1142 }
1143 } else
1144 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1145 }
1146
1147 out:
1148 if (pcie_device)
1149 pcie_device_put(pcie_device);
1150
1151 /* free memory associated with sg buffers */
1152 if (data_in)
1153 dma_free_coherent(&ioc->pdev->dev, data_in_sz, data_in,
1154 data_in_dma);
1155
1156 if (data_out)
1157 dma_free_coherent(&ioc->pdev->dev, data_out_sz, data_out,
1158 data_out_dma);
1159
1160 kfree(mpi_request);
1161 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1162 return ret;
1163 }
1164
1165 /**
1166 * _ctl_getiocinfo - main handler for MPT3IOCINFO opcode
1167 * @ioc: per adapter object
1168 * @arg: user space buffer containing ioctl content
1169 */
1170 static long
_ctl_getiocinfo(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1171 _ctl_getiocinfo(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1172 {
1173 struct mpt3_ioctl_iocinfo karg;
1174
1175 dctlprintk(ioc, ioc_info(ioc, "%s: enter\n",
1176 __func__));
1177
1178 memset(&karg, 0 , sizeof(karg));
1179 if (ioc->pfacts)
1180 karg.port_number = ioc->pfacts[0].PortNumber;
1181 karg.hw_rev = ioc->pdev->revision;
1182 karg.pci_id = ioc->pdev->device;
1183 karg.subsystem_device = ioc->pdev->subsystem_device;
1184 karg.subsystem_vendor = ioc->pdev->subsystem_vendor;
1185 karg.pci_information.u.bits.bus = ioc->pdev->bus->number;
1186 karg.pci_information.u.bits.device = PCI_SLOT(ioc->pdev->devfn);
1187 karg.pci_information.u.bits.function = PCI_FUNC(ioc->pdev->devfn);
1188 karg.pci_information.segment_id = pci_domain_nr(ioc->pdev->bus);
1189 karg.firmware_version = ioc->facts.FWVersion.Word;
1190 strcpy(karg.driver_version, ioc->driver_name);
1191 strcat(karg.driver_version, "-");
1192 switch (ioc->hba_mpi_version_belonged) {
1193 case MPI2_VERSION:
1194 if (ioc->is_warpdrive)
1195 karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2_SSS6200;
1196 else
1197 karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2;
1198 strcat(karg.driver_version, MPT2SAS_DRIVER_VERSION);
1199 break;
1200 case MPI25_VERSION:
1201 case MPI26_VERSION:
1202 if (ioc->is_gen35_ioc)
1203 karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS35;
1204 else
1205 karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS3;
1206 strcat(karg.driver_version, MPT3SAS_DRIVER_VERSION);
1207 break;
1208 }
1209 karg.bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
1210
1211 if (copy_to_user(arg, &karg, sizeof(karg))) {
1212 pr_err("failure at %s:%d/%s()!\n",
1213 __FILE__, __LINE__, __func__);
1214 return -EFAULT;
1215 }
1216 return 0;
1217 }
1218
1219 /**
1220 * _ctl_eventquery - main handler for MPT3EVENTQUERY opcode
1221 * @ioc: per adapter object
1222 * @arg: user space buffer containing ioctl content
1223 */
1224 static long
_ctl_eventquery(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1225 _ctl_eventquery(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1226 {
1227 struct mpt3_ioctl_eventquery karg;
1228
1229 if (copy_from_user(&karg, arg, sizeof(karg))) {
1230 pr_err("failure at %s:%d/%s()!\n",
1231 __FILE__, __LINE__, __func__);
1232 return -EFAULT;
1233 }
1234
1235 dctlprintk(ioc, ioc_info(ioc, "%s: enter\n",
1236 __func__));
1237
1238 karg.event_entries = MPT3SAS_CTL_EVENT_LOG_SIZE;
1239 memcpy(karg.event_types, ioc->event_type,
1240 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1241
1242 if (copy_to_user(arg, &karg, sizeof(karg))) {
1243 pr_err("failure at %s:%d/%s()!\n",
1244 __FILE__, __LINE__, __func__);
1245 return -EFAULT;
1246 }
1247 return 0;
1248 }
1249
1250 /**
1251 * _ctl_eventenable - main handler for MPT3EVENTENABLE opcode
1252 * @ioc: per adapter object
1253 * @arg: user space buffer containing ioctl content
1254 */
1255 static long
_ctl_eventenable(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1256 _ctl_eventenable(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1257 {
1258 struct mpt3_ioctl_eventenable karg;
1259
1260 if (copy_from_user(&karg, arg, sizeof(karg))) {
1261 pr_err("failure at %s:%d/%s()!\n",
1262 __FILE__, __LINE__, __func__);
1263 return -EFAULT;
1264 }
1265
1266 dctlprintk(ioc, ioc_info(ioc, "%s: enter\n",
1267 __func__));
1268
1269 memcpy(ioc->event_type, karg.event_types,
1270 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1271 mpt3sas_base_validate_event_type(ioc, ioc->event_type);
1272
1273 if (ioc->event_log)
1274 return 0;
1275 /* initialize event_log */
1276 ioc->event_context = 0;
1277 ioc->aen_event_read_flag = 0;
1278 ioc->event_log = kcalloc(MPT3SAS_CTL_EVENT_LOG_SIZE,
1279 sizeof(struct MPT3_IOCTL_EVENTS), GFP_KERNEL);
1280 if (!ioc->event_log) {
1281 pr_err("failure at %s:%d/%s()!\n",
1282 __FILE__, __LINE__, __func__);
1283 return -ENOMEM;
1284 }
1285 return 0;
1286 }
1287
1288 /**
1289 * _ctl_eventreport - main handler for MPT3EVENTREPORT opcode
1290 * @ioc: per adapter object
1291 * @arg: user space buffer containing ioctl content
1292 */
1293 static long
_ctl_eventreport(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1294 _ctl_eventreport(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1295 {
1296 struct mpt3_ioctl_eventreport karg;
1297 u32 number_bytes, max_events, max;
1298 struct mpt3_ioctl_eventreport __user *uarg = arg;
1299
1300 if (copy_from_user(&karg, arg, sizeof(karg))) {
1301 pr_err("failure at %s:%d/%s()!\n",
1302 __FILE__, __LINE__, __func__);
1303 return -EFAULT;
1304 }
1305
1306 dctlprintk(ioc, ioc_info(ioc, "%s: enter\n",
1307 __func__));
1308
1309 number_bytes = karg.hdr.max_data_size -
1310 sizeof(struct mpt3_ioctl_header);
1311 max_events = number_bytes/sizeof(struct MPT3_IOCTL_EVENTS);
1312 max = min_t(u32, MPT3SAS_CTL_EVENT_LOG_SIZE, max_events);
1313
1314 /* If fewer than 1 event is requested, there must have
1315 * been some type of error.
1316 */
1317 if (!max || !ioc->event_log)
1318 return -ENODATA;
1319
1320 number_bytes = max * sizeof(struct MPT3_IOCTL_EVENTS);
1321 if (copy_to_user(uarg->event_data, ioc->event_log, number_bytes)) {
1322 pr_err("failure at %s:%d/%s()!\n",
1323 __FILE__, __LINE__, __func__);
1324 return -EFAULT;
1325 }
1326
1327 /* reset flag so SIGIO can restart */
1328 ioc->aen_event_read_flag = 0;
1329 return 0;
1330 }
1331
1332 /**
1333 * _ctl_do_reset - main handler for MPT3HARDRESET opcode
1334 * @ioc: per adapter object
1335 * @arg: user space buffer containing ioctl content
1336 */
1337 static long
_ctl_do_reset(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1338 _ctl_do_reset(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1339 {
1340 struct mpt3_ioctl_diag_reset karg;
1341 int retval;
1342
1343 if (copy_from_user(&karg, arg, sizeof(karg))) {
1344 pr_err("failure at %s:%d/%s()!\n",
1345 __FILE__, __LINE__, __func__);
1346 return -EFAULT;
1347 }
1348
1349 if (ioc->shost_recovery || ioc->pci_error_recovery ||
1350 ioc->is_driver_loading)
1351 return -EAGAIN;
1352
1353 dctlprintk(ioc, ioc_info(ioc, "%s: enter\n",
1354 __func__));
1355
1356 ioc->reset_from_user = 1;
1357 retval = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1358 ioc_info(ioc,
1359 "Ioctl: host reset: %s\n", ((!retval) ? "SUCCESS" : "FAILED"));
1360 return 0;
1361 }
1362
1363 /**
1364 * _ctl_btdh_search_sas_device - searching for sas device
1365 * @ioc: per adapter object
1366 * @btdh: btdh ioctl payload
1367 */
1368 static int
_ctl_btdh_search_sas_device(struct MPT3SAS_ADAPTER * ioc,struct mpt3_ioctl_btdh_mapping * btdh)1369 _ctl_btdh_search_sas_device(struct MPT3SAS_ADAPTER *ioc,
1370 struct mpt3_ioctl_btdh_mapping *btdh)
1371 {
1372 struct _sas_device *sas_device;
1373 unsigned long flags;
1374 int rc = 0;
1375
1376 if (list_empty(&ioc->sas_device_list))
1377 return rc;
1378
1379 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1380 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
1381 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1382 btdh->handle == sas_device->handle) {
1383 btdh->bus = sas_device->channel;
1384 btdh->id = sas_device->id;
1385 rc = 1;
1386 goto out;
1387 } else if (btdh->bus == sas_device->channel && btdh->id ==
1388 sas_device->id && btdh->handle == 0xFFFF) {
1389 btdh->handle = sas_device->handle;
1390 rc = 1;
1391 goto out;
1392 }
1393 }
1394 out:
1395 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1396 return rc;
1397 }
1398
1399 /**
1400 * _ctl_btdh_search_pcie_device - searching for pcie device
1401 * @ioc: per adapter object
1402 * @btdh: btdh ioctl payload
1403 */
1404 static int
_ctl_btdh_search_pcie_device(struct MPT3SAS_ADAPTER * ioc,struct mpt3_ioctl_btdh_mapping * btdh)1405 _ctl_btdh_search_pcie_device(struct MPT3SAS_ADAPTER *ioc,
1406 struct mpt3_ioctl_btdh_mapping *btdh)
1407 {
1408 struct _pcie_device *pcie_device;
1409 unsigned long flags;
1410 int rc = 0;
1411
1412 if (list_empty(&ioc->pcie_device_list))
1413 return rc;
1414
1415 spin_lock_irqsave(&ioc->pcie_device_lock, flags);
1416 list_for_each_entry(pcie_device, &ioc->pcie_device_list, list) {
1417 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1418 btdh->handle == pcie_device->handle) {
1419 btdh->bus = pcie_device->channel;
1420 btdh->id = pcie_device->id;
1421 rc = 1;
1422 goto out;
1423 } else if (btdh->bus == pcie_device->channel && btdh->id ==
1424 pcie_device->id && btdh->handle == 0xFFFF) {
1425 btdh->handle = pcie_device->handle;
1426 rc = 1;
1427 goto out;
1428 }
1429 }
1430 out:
1431 spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
1432 return rc;
1433 }
1434
1435 /**
1436 * _ctl_btdh_search_raid_device - searching for raid device
1437 * @ioc: per adapter object
1438 * @btdh: btdh ioctl payload
1439 */
1440 static int
_ctl_btdh_search_raid_device(struct MPT3SAS_ADAPTER * ioc,struct mpt3_ioctl_btdh_mapping * btdh)1441 _ctl_btdh_search_raid_device(struct MPT3SAS_ADAPTER *ioc,
1442 struct mpt3_ioctl_btdh_mapping *btdh)
1443 {
1444 struct _raid_device *raid_device;
1445 unsigned long flags;
1446 int rc = 0;
1447
1448 if (list_empty(&ioc->raid_device_list))
1449 return rc;
1450
1451 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1452 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
1453 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1454 btdh->handle == raid_device->handle) {
1455 btdh->bus = raid_device->channel;
1456 btdh->id = raid_device->id;
1457 rc = 1;
1458 goto out;
1459 } else if (btdh->bus == raid_device->channel && btdh->id ==
1460 raid_device->id && btdh->handle == 0xFFFF) {
1461 btdh->handle = raid_device->handle;
1462 rc = 1;
1463 goto out;
1464 }
1465 }
1466 out:
1467 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1468 return rc;
1469 }
1470
1471 /**
1472 * _ctl_btdh_mapping - main handler for MPT3BTDHMAPPING opcode
1473 * @ioc: per adapter object
1474 * @arg: user space buffer containing ioctl content
1475 */
1476 static long
_ctl_btdh_mapping(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1477 _ctl_btdh_mapping(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1478 {
1479 struct mpt3_ioctl_btdh_mapping karg;
1480 int rc;
1481
1482 if (copy_from_user(&karg, arg, sizeof(karg))) {
1483 pr_err("failure at %s:%d/%s()!\n",
1484 __FILE__, __LINE__, __func__);
1485 return -EFAULT;
1486 }
1487
1488 dctlprintk(ioc, ioc_info(ioc, "%s\n",
1489 __func__));
1490
1491 rc = _ctl_btdh_search_sas_device(ioc, &karg);
1492 if (!rc)
1493 rc = _ctl_btdh_search_pcie_device(ioc, &karg);
1494 if (!rc)
1495 _ctl_btdh_search_raid_device(ioc, &karg);
1496
1497 if (copy_to_user(arg, &karg, sizeof(karg))) {
1498 pr_err("failure at %s:%d/%s()!\n",
1499 __FILE__, __LINE__, __func__);
1500 return -EFAULT;
1501 }
1502 return 0;
1503 }
1504
1505 /**
1506 * _ctl_diag_capability - return diag buffer capability
1507 * @ioc: per adapter object
1508 * @buffer_type: specifies either TRACE, SNAPSHOT, or EXTENDED
1509 *
1510 * returns 1 when diag buffer support is enabled in firmware
1511 */
1512 static u8
_ctl_diag_capability(struct MPT3SAS_ADAPTER * ioc,u8 buffer_type)1513 _ctl_diag_capability(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type)
1514 {
1515 u8 rc = 0;
1516
1517 switch (buffer_type) {
1518 case MPI2_DIAG_BUF_TYPE_TRACE:
1519 if (ioc->facts.IOCCapabilities &
1520 MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER)
1521 rc = 1;
1522 break;
1523 case MPI2_DIAG_BUF_TYPE_SNAPSHOT:
1524 if (ioc->facts.IOCCapabilities &
1525 MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER)
1526 rc = 1;
1527 break;
1528 case MPI2_DIAG_BUF_TYPE_EXTENDED:
1529 if (ioc->facts.IOCCapabilities &
1530 MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER)
1531 rc = 1;
1532 }
1533
1534 return rc;
1535 }
1536
1537 /**
1538 * _ctl_diag_get_bufftype - return diag buffer type
1539 * either TRACE, SNAPSHOT, or EXTENDED
1540 * @ioc: per adapter object
1541 * @unique_id: specifies the unique_id for the buffer
1542 *
1543 * returns MPT3_DIAG_UID_NOT_FOUND if the id not found
1544 */
1545 static u8
_ctl_diag_get_bufftype(struct MPT3SAS_ADAPTER * ioc,u32 unique_id)1546 _ctl_diag_get_bufftype(struct MPT3SAS_ADAPTER *ioc, u32 unique_id)
1547 {
1548 u8 index;
1549
1550 for (index = 0; index < MPI2_DIAG_BUF_TYPE_COUNT; index++) {
1551 if (ioc->unique_id[index] == unique_id)
1552 return index;
1553 }
1554
1555 return MPT3_DIAG_UID_NOT_FOUND;
1556 }
1557
1558 /**
1559 * _ctl_diag_register_2 - wrapper for registering diag buffer support
1560 * @ioc: per adapter object
1561 * @diag_register: the diag_register struct passed in from user space
1562 *
1563 */
1564 static long
_ctl_diag_register_2(struct MPT3SAS_ADAPTER * ioc,struct mpt3_diag_register * diag_register)1565 _ctl_diag_register_2(struct MPT3SAS_ADAPTER *ioc,
1566 struct mpt3_diag_register *diag_register)
1567 {
1568 int rc, i;
1569 void *request_data = NULL;
1570 dma_addr_t request_data_dma;
1571 u32 request_data_sz = 0;
1572 Mpi2DiagBufferPostRequest_t *mpi_request;
1573 Mpi2DiagBufferPostReply_t *mpi_reply;
1574 u8 buffer_type;
1575 u16 smid;
1576 u16 ioc_status;
1577 u32 ioc_state;
1578 u8 issue_reset = 0;
1579
1580 dctlprintk(ioc, ioc_info(ioc, "%s\n",
1581 __func__));
1582
1583 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1584 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1585 ioc_err(ioc, "%s: failed due to ioc not operational\n",
1586 __func__);
1587 rc = -EAGAIN;
1588 goto out;
1589 }
1590
1591 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
1592 ioc_err(ioc, "%s: ctl_cmd in use\n", __func__);
1593 rc = -EAGAIN;
1594 goto out;
1595 }
1596
1597 buffer_type = diag_register->buffer_type;
1598 if (!_ctl_diag_capability(ioc, buffer_type)) {
1599 ioc_err(ioc, "%s: doesn't have capability for buffer_type(0x%02x)\n",
1600 __func__, buffer_type);
1601 return -EPERM;
1602 }
1603
1604 if (diag_register->unique_id == 0) {
1605 ioc_err(ioc,
1606 "%s: Invalid UID(0x%08x), buffer_type(0x%02x)\n", __func__,
1607 diag_register->unique_id, buffer_type);
1608 return -EINVAL;
1609 }
1610
1611 if ((ioc->diag_buffer_status[buffer_type] &
1612 MPT3_DIAG_BUFFER_IS_APP_OWNED) &&
1613 !(ioc->diag_buffer_status[buffer_type] &
1614 MPT3_DIAG_BUFFER_IS_RELEASED)) {
1615 ioc_err(ioc,
1616 "%s: buffer_type(0x%02x) is already registered by application with UID(0x%08x)\n",
1617 __func__, buffer_type, ioc->unique_id[buffer_type]);
1618 return -EINVAL;
1619 }
1620
1621 if (ioc->diag_buffer_status[buffer_type] &
1622 MPT3_DIAG_BUFFER_IS_REGISTERED) {
1623 /*
1624 * If driver posts buffer initially, then an application wants
1625 * to Register that buffer (own it) without Releasing first,
1626 * the application Register command MUST have the same buffer
1627 * type and size in the Register command (obtained from the
1628 * Query command). Otherwise that Register command will be
1629 * failed. If the application has released the buffer but wants
1630 * to re-register it, it should be allowed as long as the
1631 * Unique-Id/Size match.
1632 */
1633
1634 if (ioc->unique_id[buffer_type] == MPT3DIAGBUFFUNIQUEID &&
1635 ioc->diag_buffer_sz[buffer_type] ==
1636 diag_register->requested_buffer_size) {
1637
1638 if (!(ioc->diag_buffer_status[buffer_type] &
1639 MPT3_DIAG_BUFFER_IS_RELEASED)) {
1640 dctlprintk(ioc, ioc_info(ioc,
1641 "%s: diag_buffer (%d) ownership changed. old-ID(0x%08x), new-ID(0x%08x)\n",
1642 __func__, buffer_type,
1643 ioc->unique_id[buffer_type],
1644 diag_register->unique_id));
1645
1646 /*
1647 * Application wants to own the buffer with
1648 * the same size.
1649 */
1650 ioc->unique_id[buffer_type] =
1651 diag_register->unique_id;
1652 rc = 0; /* success */
1653 goto out;
1654 }
1655 } else if (ioc->unique_id[buffer_type] !=
1656 MPT3DIAGBUFFUNIQUEID) {
1657 if (ioc->unique_id[buffer_type] !=
1658 diag_register->unique_id ||
1659 ioc->diag_buffer_sz[buffer_type] !=
1660 diag_register->requested_buffer_size ||
1661 !(ioc->diag_buffer_status[buffer_type] &
1662 MPT3_DIAG_BUFFER_IS_RELEASED)) {
1663 ioc_err(ioc,
1664 "%s: already has a registered buffer for buffer_type(0x%02x)\n",
1665 __func__, buffer_type);
1666 return -EINVAL;
1667 }
1668 } else {
1669 ioc_err(ioc, "%s: already has a registered buffer for buffer_type(0x%02x)\n",
1670 __func__, buffer_type);
1671 return -EINVAL;
1672 }
1673 } else if (ioc->diag_buffer_status[buffer_type] &
1674 MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED) {
1675
1676 if (ioc->unique_id[buffer_type] != MPT3DIAGBUFFUNIQUEID ||
1677 ioc->diag_buffer_sz[buffer_type] !=
1678 diag_register->requested_buffer_size) {
1679
1680 ioc_err(ioc,
1681 "%s: already a buffer is allocated for buffer_type(0x%02x) of size %d bytes, so please try registering again with same size\n",
1682 __func__, buffer_type,
1683 ioc->diag_buffer_sz[buffer_type]);
1684 return -EINVAL;
1685 }
1686 }
1687
1688 if (diag_register->requested_buffer_size % 4) {
1689 ioc_err(ioc, "%s: the requested_buffer_size is not 4 byte aligned\n",
1690 __func__);
1691 return -EINVAL;
1692 }
1693
1694 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1695 if (!smid) {
1696 ioc_err(ioc, "%s: failed obtaining a smid\n", __func__);
1697 rc = -EAGAIN;
1698 goto out;
1699 }
1700
1701 rc = 0;
1702 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
1703 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1704 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1705 memset(mpi_request, 0, ioc->request_sz);
1706 ioc->ctl_cmds.smid = smid;
1707
1708 request_data = ioc->diag_buffer[buffer_type];
1709 request_data_sz = diag_register->requested_buffer_size;
1710 ioc->unique_id[buffer_type] = diag_register->unique_id;
1711 /* Reset ioc variables used for additional query commands */
1712 ioc->reset_from_user = 0;
1713 memset(&ioc->htb_rel, 0, sizeof(struct htb_rel_query));
1714 ioc->diag_buffer_status[buffer_type] &=
1715 MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED;
1716 memcpy(ioc->product_specific[buffer_type],
1717 diag_register->product_specific, MPT3_PRODUCT_SPECIFIC_DWORDS);
1718 ioc->diagnostic_flags[buffer_type] = diag_register->diagnostic_flags;
1719
1720 if (request_data) {
1721 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1722 if (request_data_sz != ioc->diag_buffer_sz[buffer_type]) {
1723 dma_free_coherent(&ioc->pdev->dev,
1724 ioc->diag_buffer_sz[buffer_type],
1725 request_data, request_data_dma);
1726 request_data = NULL;
1727 }
1728 }
1729
1730 if (request_data == NULL) {
1731 ioc->diag_buffer_sz[buffer_type] = 0;
1732 ioc->diag_buffer_dma[buffer_type] = 0;
1733 request_data = dma_alloc_coherent(&ioc->pdev->dev,
1734 request_data_sz, &request_data_dma, GFP_KERNEL);
1735 if (request_data == NULL) {
1736 ioc_err(ioc, "%s: failed allocating memory for diag buffers, requested size(%d)\n",
1737 __func__, request_data_sz);
1738 mpt3sas_base_free_smid(ioc, smid);
1739 rc = -ENOMEM;
1740 goto out;
1741 }
1742 ioc->diag_buffer[buffer_type] = request_data;
1743 ioc->diag_buffer_sz[buffer_type] = request_data_sz;
1744 ioc->diag_buffer_dma[buffer_type] = request_data_dma;
1745 }
1746
1747 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
1748 mpi_request->BufferType = diag_register->buffer_type;
1749 mpi_request->Flags = cpu_to_le32(diag_register->diagnostic_flags);
1750 mpi_request->BufferAddress = cpu_to_le64(request_data_dma);
1751 mpi_request->BufferLength = cpu_to_le32(request_data_sz);
1752 mpi_request->VF_ID = 0; /* TODO */
1753 mpi_request->VP_ID = 0;
1754
1755 dctlprintk(ioc,
1756 ioc_info(ioc, "%s: diag_buffer(0x%p), dma(0x%llx), sz(%d)\n",
1757 __func__, request_data,
1758 (unsigned long long)request_data_dma,
1759 le32_to_cpu(mpi_request->BufferLength)));
1760
1761 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
1762 mpi_request->ProductSpecific[i] =
1763 cpu_to_le32(ioc->product_specific[buffer_type][i]);
1764
1765 init_completion(&ioc->ctl_cmds.done);
1766 ioc->put_smid_default(ioc, smid);
1767 wait_for_completion_timeout(&ioc->ctl_cmds.done,
1768 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
1769
1770 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1771 mpt3sas_check_cmd_timeout(ioc,
1772 ioc->ctl_cmds.status, mpi_request,
1773 sizeof(Mpi2DiagBufferPostRequest_t)/4, issue_reset);
1774 goto issue_host_reset;
1775 }
1776
1777 /* process the completed Reply Message Frame */
1778 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
1779 ioc_err(ioc, "%s: no reply message\n", __func__);
1780 rc = -EFAULT;
1781 goto out;
1782 }
1783
1784 mpi_reply = ioc->ctl_cmds.reply;
1785 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1786
1787 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1788 ioc->diag_buffer_status[buffer_type] |=
1789 MPT3_DIAG_BUFFER_IS_REGISTERED;
1790 dctlprintk(ioc, ioc_info(ioc, "%s: success\n", __func__));
1791 } else {
1792 ioc_info(ioc, "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
1793 __func__,
1794 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
1795 rc = -EFAULT;
1796 }
1797
1798 issue_host_reset:
1799 if (issue_reset)
1800 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1801
1802 out:
1803
1804 if (rc && request_data) {
1805 dma_free_coherent(&ioc->pdev->dev, request_data_sz,
1806 request_data, request_data_dma);
1807 ioc->diag_buffer[buffer_type] = NULL;
1808 ioc->diag_buffer_status[buffer_type] &=
1809 ~MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED;
1810 }
1811
1812 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1813 return rc;
1814 }
1815
1816 /**
1817 * mpt3sas_enable_diag_buffer - enabling diag_buffers support driver load time
1818 * @ioc: per adapter object
1819 * @bits_to_register: bitwise field where trace is bit 0, and snapshot is bit 1
1820 *
1821 * This is called when command line option diag_buffer_enable is enabled
1822 * at driver load time.
1823 */
1824 void
mpt3sas_enable_diag_buffer(struct MPT3SAS_ADAPTER * ioc,u8 bits_to_register)1825 mpt3sas_enable_diag_buffer(struct MPT3SAS_ADAPTER *ioc, u8 bits_to_register)
1826 {
1827 struct mpt3_diag_register diag_register;
1828 u32 ret_val;
1829 u32 trace_buff_size = ioc->manu_pg11.HostTraceBufferMaxSizeKB<<10;
1830 u32 min_trace_buff_size = 0;
1831 u32 decr_trace_buff_size = 0;
1832
1833 memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
1834
1835 if (bits_to_register & 1) {
1836 ioc_info(ioc, "registering trace buffer support\n");
1837 ioc->diag_trigger_master.MasterData =
1838 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
1839 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
1840 diag_register.unique_id =
1841 (ioc->hba_mpi_version_belonged == MPI2_VERSION) ?
1842 (MPT2DIAGBUFFUNIQUEID):(MPT3DIAGBUFFUNIQUEID);
1843
1844 if (trace_buff_size != 0) {
1845 diag_register.requested_buffer_size = trace_buff_size;
1846 min_trace_buff_size =
1847 ioc->manu_pg11.HostTraceBufferMinSizeKB<<10;
1848 decr_trace_buff_size =
1849 ioc->manu_pg11.HostTraceBufferDecrementSizeKB<<10;
1850
1851 if (min_trace_buff_size > trace_buff_size) {
1852 /* The buff size is not set correctly */
1853 ioc_err(ioc,
1854 "Min Trace Buff size (%d KB) greater than Max Trace Buff size (%d KB)\n",
1855 min_trace_buff_size>>10,
1856 trace_buff_size>>10);
1857 ioc_err(ioc,
1858 "Using zero Min Trace Buff Size\n");
1859 min_trace_buff_size = 0;
1860 }
1861
1862 if (decr_trace_buff_size == 0) {
1863 /*
1864 * retry the min size if decrement
1865 * is not available.
1866 */
1867 decr_trace_buff_size =
1868 trace_buff_size - min_trace_buff_size;
1869 }
1870 } else {
1871 /* register for 2MB buffers */
1872 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1873 }
1874
1875 do {
1876 ret_val = _ctl_diag_register_2(ioc, &diag_register);
1877
1878 if (ret_val == -ENOMEM && min_trace_buff_size &&
1879 (trace_buff_size - decr_trace_buff_size) >=
1880 min_trace_buff_size) {
1881 /* adjust the buffer size */
1882 trace_buff_size -= decr_trace_buff_size;
1883 diag_register.requested_buffer_size =
1884 trace_buff_size;
1885 } else
1886 break;
1887 } while (true);
1888
1889 if (ret_val == -ENOMEM)
1890 ioc_err(ioc,
1891 "Cannot allocate trace buffer memory. Last memory tried = %d KB\n",
1892 diag_register.requested_buffer_size>>10);
1893 else if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE]
1894 & MPT3_DIAG_BUFFER_IS_REGISTERED) {
1895 ioc_info(ioc, "Trace buffer memory %d KB allocated\n",
1896 diag_register.requested_buffer_size>>10);
1897 if (ioc->hba_mpi_version_belonged != MPI2_VERSION)
1898 ioc->diag_buffer_status[
1899 MPI2_DIAG_BUF_TYPE_TRACE] |=
1900 MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED;
1901 }
1902 }
1903
1904 if (bits_to_register & 2) {
1905 ioc_info(ioc, "registering snapshot buffer support\n");
1906 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_SNAPSHOT;
1907 /* register for 2MB buffers */
1908 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1909 diag_register.unique_id = 0x7075901;
1910 _ctl_diag_register_2(ioc, &diag_register);
1911 }
1912
1913 if (bits_to_register & 4) {
1914 ioc_info(ioc, "registering extended buffer support\n");
1915 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_EXTENDED;
1916 /* register for 2MB buffers */
1917 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1918 diag_register.unique_id = 0x7075901;
1919 _ctl_diag_register_2(ioc, &diag_register);
1920 }
1921 }
1922
1923 /**
1924 * _ctl_diag_register - application register with driver
1925 * @ioc: per adapter object
1926 * @arg: user space buffer containing ioctl content
1927 *
1928 * This will allow the driver to setup any required buffers that will be
1929 * needed by firmware to communicate with the driver.
1930 */
1931 static long
_ctl_diag_register(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1932 _ctl_diag_register(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1933 {
1934 struct mpt3_diag_register karg;
1935 long rc;
1936
1937 if (copy_from_user(&karg, arg, sizeof(karg))) {
1938 pr_err("failure at %s:%d/%s()!\n",
1939 __FILE__, __LINE__, __func__);
1940 return -EFAULT;
1941 }
1942
1943 rc = _ctl_diag_register_2(ioc, &karg);
1944
1945 if (!rc && (ioc->diag_buffer_status[karg.buffer_type] &
1946 MPT3_DIAG_BUFFER_IS_REGISTERED))
1947 ioc->diag_buffer_status[karg.buffer_type] |=
1948 MPT3_DIAG_BUFFER_IS_APP_OWNED;
1949
1950 return rc;
1951 }
1952
1953 /**
1954 * _ctl_diag_unregister - application unregister with driver
1955 * @ioc: per adapter object
1956 * @arg: user space buffer containing ioctl content
1957 *
1958 * This will allow the driver to cleanup any memory allocated for diag
1959 * messages and to free up any resources.
1960 */
1961 static long
_ctl_diag_unregister(struct MPT3SAS_ADAPTER * ioc,void __user * arg)1962 _ctl_diag_unregister(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1963 {
1964 struct mpt3_diag_unregister karg;
1965 void *request_data;
1966 dma_addr_t request_data_dma;
1967 u32 request_data_sz;
1968 u8 buffer_type;
1969
1970 if (copy_from_user(&karg, arg, sizeof(karg))) {
1971 pr_err("failure at %s:%d/%s()!\n",
1972 __FILE__, __LINE__, __func__);
1973 return -EFAULT;
1974 }
1975
1976 dctlprintk(ioc, ioc_info(ioc, "%s\n",
1977 __func__));
1978
1979 buffer_type = _ctl_diag_get_bufftype(ioc, karg.unique_id);
1980 if (buffer_type == MPT3_DIAG_UID_NOT_FOUND) {
1981 ioc_err(ioc, "%s: buffer with unique_id(0x%08x) not found\n",
1982 __func__, karg.unique_id);
1983 return -EINVAL;
1984 }
1985
1986 if (!_ctl_diag_capability(ioc, buffer_type)) {
1987 ioc_err(ioc, "%s: doesn't have capability for buffer_type(0x%02x)\n",
1988 __func__, buffer_type);
1989 return -EPERM;
1990 }
1991
1992 if ((ioc->diag_buffer_status[buffer_type] &
1993 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1994 ioc_err(ioc, "%s: buffer_type(0x%02x) is not registered\n",
1995 __func__, buffer_type);
1996 return -EINVAL;
1997 }
1998 if ((ioc->diag_buffer_status[buffer_type] &
1999 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
2000 ioc_err(ioc, "%s: buffer_type(0x%02x) has not been released\n",
2001 __func__, buffer_type);
2002 return -EINVAL;
2003 }
2004
2005 if (karg.unique_id != ioc->unique_id[buffer_type]) {
2006 ioc_err(ioc, "%s: unique_id(0x%08x) is not registered\n",
2007 __func__, karg.unique_id);
2008 return -EINVAL;
2009 }
2010
2011 request_data = ioc->diag_buffer[buffer_type];
2012 if (!request_data) {
2013 ioc_err(ioc, "%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
2014 __func__, buffer_type);
2015 return -ENOMEM;
2016 }
2017
2018 if (ioc->diag_buffer_status[buffer_type] &
2019 MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED) {
2020 ioc->unique_id[buffer_type] = MPT3DIAGBUFFUNIQUEID;
2021 ioc->diag_buffer_status[buffer_type] &=
2022 ~MPT3_DIAG_BUFFER_IS_APP_OWNED;
2023 ioc->diag_buffer_status[buffer_type] &=
2024 ~MPT3_DIAG_BUFFER_IS_REGISTERED;
2025 } else {
2026 request_data_sz = ioc->diag_buffer_sz[buffer_type];
2027 request_data_dma = ioc->diag_buffer_dma[buffer_type];
2028 dma_free_coherent(&ioc->pdev->dev, request_data_sz,
2029 request_data, request_data_dma);
2030 ioc->diag_buffer[buffer_type] = NULL;
2031 ioc->diag_buffer_status[buffer_type] = 0;
2032 }
2033 return 0;
2034 }
2035
2036 /**
2037 * _ctl_diag_query - query relevant info associated with diag buffers
2038 * @ioc: per adapter object
2039 * @arg: user space buffer containing ioctl content
2040 *
2041 * The application will send only buffer_type and unique_id. Driver will
2042 * inspect unique_id first, if valid, fill in all the info. If unique_id is
2043 * 0x00, the driver will return info specified by Buffer Type.
2044 */
2045 static long
_ctl_diag_query(struct MPT3SAS_ADAPTER * ioc,void __user * arg)2046 _ctl_diag_query(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
2047 {
2048 struct mpt3_diag_query karg;
2049 void *request_data;
2050 int i;
2051 u8 buffer_type;
2052
2053 if (copy_from_user(&karg, arg, sizeof(karg))) {
2054 pr_err("failure at %s:%d/%s()!\n",
2055 __FILE__, __LINE__, __func__);
2056 return -EFAULT;
2057 }
2058
2059 dctlprintk(ioc, ioc_info(ioc, "%s\n",
2060 __func__));
2061
2062 karg.application_flags = 0;
2063 buffer_type = karg.buffer_type;
2064
2065 if (!_ctl_diag_capability(ioc, buffer_type)) {
2066 ioc_err(ioc, "%s: doesn't have capability for buffer_type(0x%02x)\n",
2067 __func__, buffer_type);
2068 return -EPERM;
2069 }
2070
2071 if (!(ioc->diag_buffer_status[buffer_type] &
2072 MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED)) {
2073 if ((ioc->diag_buffer_status[buffer_type] &
2074 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
2075 ioc_err(ioc, "%s: buffer_type(0x%02x) is not registered\n",
2076 __func__, buffer_type);
2077 return -EINVAL;
2078 }
2079 }
2080
2081 if (karg.unique_id) {
2082 if (karg.unique_id != ioc->unique_id[buffer_type]) {
2083 ioc_err(ioc, "%s: unique_id(0x%08x) is not registered\n",
2084 __func__, karg.unique_id);
2085 return -EINVAL;
2086 }
2087 }
2088
2089 request_data = ioc->diag_buffer[buffer_type];
2090 if (!request_data) {
2091 ioc_err(ioc, "%s: doesn't have buffer for buffer_type(0x%02x)\n",
2092 __func__, buffer_type);
2093 return -ENOMEM;
2094 }
2095
2096 if ((ioc->diag_buffer_status[buffer_type] &
2097 MPT3_DIAG_BUFFER_IS_REGISTERED))
2098 karg.application_flags |= MPT3_APP_FLAGS_BUFFER_VALID;
2099
2100 if (!(ioc->diag_buffer_status[buffer_type] &
2101 MPT3_DIAG_BUFFER_IS_RELEASED))
2102 karg.application_flags |= MPT3_APP_FLAGS_FW_BUFFER_ACCESS;
2103
2104 if (!(ioc->diag_buffer_status[buffer_type] &
2105 MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED))
2106 karg.application_flags |= MPT3_APP_FLAGS_DYNAMIC_BUFFER_ALLOC;
2107
2108 if ((ioc->diag_buffer_status[buffer_type] &
2109 MPT3_DIAG_BUFFER_IS_APP_OWNED))
2110 karg.application_flags |= MPT3_APP_FLAGS_APP_OWNED;
2111
2112 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
2113 karg.product_specific[i] =
2114 ioc->product_specific[buffer_type][i];
2115
2116 karg.total_buffer_size = ioc->diag_buffer_sz[buffer_type];
2117 karg.driver_added_buffer_size = 0;
2118 karg.unique_id = ioc->unique_id[buffer_type];
2119 karg.diagnostic_flags = ioc->diagnostic_flags[buffer_type];
2120
2121 if (copy_to_user(arg, &karg, sizeof(struct mpt3_diag_query))) {
2122 ioc_err(ioc, "%s: unable to write mpt3_diag_query data @ %p\n",
2123 __func__, arg);
2124 return -EFAULT;
2125 }
2126 return 0;
2127 }
2128
2129 /**
2130 * mpt3sas_send_diag_release - Diag Release Message
2131 * @ioc: per adapter object
2132 * @buffer_type: specifies either TRACE, SNAPSHOT, or EXTENDED
2133 * @issue_reset: specifies whether host reset is required.
2134 *
2135 */
2136 int
mpt3sas_send_diag_release(struct MPT3SAS_ADAPTER * ioc,u8 buffer_type,u8 * issue_reset)2137 mpt3sas_send_diag_release(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type,
2138 u8 *issue_reset)
2139 {
2140 Mpi2DiagReleaseRequest_t *mpi_request;
2141 Mpi2DiagReleaseReply_t *mpi_reply;
2142 u16 smid;
2143 u16 ioc_status;
2144 u32 ioc_state;
2145 int rc;
2146 u8 reset_needed = 0;
2147
2148 dctlprintk(ioc, ioc_info(ioc, "%s\n",
2149 __func__));
2150
2151 rc = 0;
2152 *issue_reset = 0;
2153
2154
2155 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
2156 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
2157 if (ioc->diag_buffer_status[buffer_type] &
2158 MPT3_DIAG_BUFFER_IS_REGISTERED)
2159 ioc->diag_buffer_status[buffer_type] |=
2160 MPT3_DIAG_BUFFER_IS_RELEASED;
2161 dctlprintk(ioc,
2162 ioc_info(ioc, "%s: skipping due to FAULT state\n",
2163 __func__));
2164 rc = -EAGAIN;
2165 goto out;
2166 }
2167
2168 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
2169 ioc_err(ioc, "%s: ctl_cmd in use\n", __func__);
2170 rc = -EAGAIN;
2171 goto out;
2172 }
2173
2174 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
2175 if (!smid) {
2176 ioc_err(ioc, "%s: failed obtaining a smid\n", __func__);
2177 rc = -EAGAIN;
2178 goto out;
2179 }
2180
2181 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
2182 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
2183 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
2184 memset(mpi_request, 0, ioc->request_sz);
2185 ioc->ctl_cmds.smid = smid;
2186
2187 mpi_request->Function = MPI2_FUNCTION_DIAG_RELEASE;
2188 mpi_request->BufferType = buffer_type;
2189 mpi_request->VF_ID = 0; /* TODO */
2190 mpi_request->VP_ID = 0;
2191
2192 init_completion(&ioc->ctl_cmds.done);
2193 ioc->put_smid_default(ioc, smid);
2194 wait_for_completion_timeout(&ioc->ctl_cmds.done,
2195 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
2196
2197 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
2198 mpt3sas_check_cmd_timeout(ioc,
2199 ioc->ctl_cmds.status, mpi_request,
2200 sizeof(Mpi2DiagReleaseRequest_t)/4, reset_needed);
2201 *issue_reset = reset_needed;
2202 rc = -EFAULT;
2203 goto out;
2204 }
2205
2206 /* process the completed Reply Message Frame */
2207 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
2208 ioc_err(ioc, "%s: no reply message\n", __func__);
2209 rc = -EFAULT;
2210 goto out;
2211 }
2212
2213 mpi_reply = ioc->ctl_cmds.reply;
2214 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
2215
2216 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
2217 ioc->diag_buffer_status[buffer_type] |=
2218 MPT3_DIAG_BUFFER_IS_RELEASED;
2219 dctlprintk(ioc, ioc_info(ioc, "%s: success\n", __func__));
2220 } else {
2221 ioc_info(ioc, "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
2222 __func__,
2223 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
2224 rc = -EFAULT;
2225 }
2226
2227 out:
2228 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
2229 return rc;
2230 }
2231
2232 /**
2233 * _ctl_diag_release - request to send Diag Release Message to firmware
2234 * @ioc: ?
2235 * @arg: user space buffer containing ioctl content
2236 *
2237 * This allows ownership of the specified buffer to returned to the driver,
2238 * allowing an application to read the buffer without fear that firmware is
2239 * overwriting information in the buffer.
2240 */
2241 static long
_ctl_diag_release(struct MPT3SAS_ADAPTER * ioc,void __user * arg)2242 _ctl_diag_release(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
2243 {
2244 struct mpt3_diag_release karg;
2245 void *request_data;
2246 int rc;
2247 u8 buffer_type;
2248 u8 issue_reset = 0;
2249
2250 if (copy_from_user(&karg, arg, sizeof(karg))) {
2251 pr_err("failure at %s:%d/%s()!\n",
2252 __FILE__, __LINE__, __func__);
2253 return -EFAULT;
2254 }
2255
2256 dctlprintk(ioc, ioc_info(ioc, "%s\n",
2257 __func__));
2258
2259 buffer_type = _ctl_diag_get_bufftype(ioc, karg.unique_id);
2260 if (buffer_type == MPT3_DIAG_UID_NOT_FOUND) {
2261 ioc_err(ioc, "%s: buffer with unique_id(0x%08x) not found\n",
2262 __func__, karg.unique_id);
2263 return -EINVAL;
2264 }
2265
2266 if (!_ctl_diag_capability(ioc, buffer_type)) {
2267 ioc_err(ioc, "%s: doesn't have capability for buffer_type(0x%02x)\n",
2268 __func__, buffer_type);
2269 return -EPERM;
2270 }
2271
2272 if ((ioc->diag_buffer_status[buffer_type] &
2273 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
2274 ioc_err(ioc, "%s: buffer_type(0x%02x) is not registered\n",
2275 __func__, buffer_type);
2276 return -EINVAL;
2277 }
2278
2279 if (karg.unique_id != ioc->unique_id[buffer_type]) {
2280 ioc_err(ioc, "%s: unique_id(0x%08x) is not registered\n",
2281 __func__, karg.unique_id);
2282 return -EINVAL;
2283 }
2284
2285 if (ioc->diag_buffer_status[buffer_type] &
2286 MPT3_DIAG_BUFFER_IS_RELEASED) {
2287 ioc_err(ioc, "%s: buffer_type(0x%02x) is already released\n",
2288 __func__, buffer_type);
2289 return -EINVAL;
2290 }
2291
2292 request_data = ioc->diag_buffer[buffer_type];
2293
2294 if (!request_data) {
2295 ioc_err(ioc, "%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
2296 __func__, buffer_type);
2297 return -ENOMEM;
2298 }
2299
2300 /* buffers were released by due to host reset */
2301 if ((ioc->diag_buffer_status[buffer_type] &
2302 MPT3_DIAG_BUFFER_IS_DIAG_RESET)) {
2303 ioc->diag_buffer_status[buffer_type] |=
2304 MPT3_DIAG_BUFFER_IS_RELEASED;
2305 ioc->diag_buffer_status[buffer_type] &=
2306 ~MPT3_DIAG_BUFFER_IS_DIAG_RESET;
2307 ioc_err(ioc, "%s: buffer_type(0x%02x) was released due to host reset\n",
2308 __func__, buffer_type);
2309 return 0;
2310 }
2311
2312 rc = mpt3sas_send_diag_release(ioc, buffer_type, &issue_reset);
2313
2314 if (issue_reset)
2315 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
2316
2317 return rc;
2318 }
2319
2320 /**
2321 * _ctl_diag_read_buffer - request for copy of the diag buffer
2322 * @ioc: per adapter object
2323 * @arg: user space buffer containing ioctl content
2324 */
2325 static long
_ctl_diag_read_buffer(struct MPT3SAS_ADAPTER * ioc,void __user * arg)2326 _ctl_diag_read_buffer(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
2327 {
2328 struct mpt3_diag_read_buffer karg;
2329 struct mpt3_diag_read_buffer __user *uarg = arg;
2330 void *request_data, *diag_data;
2331 Mpi2DiagBufferPostRequest_t *mpi_request;
2332 Mpi2DiagBufferPostReply_t *mpi_reply;
2333 int rc, i;
2334 u8 buffer_type;
2335 unsigned long request_size, copy_size;
2336 u16 smid;
2337 u16 ioc_status;
2338 u8 issue_reset = 0;
2339
2340 if (copy_from_user(&karg, arg, sizeof(karg))) {
2341 pr_err("failure at %s:%d/%s()!\n",
2342 __FILE__, __LINE__, __func__);
2343 return -EFAULT;
2344 }
2345
2346 dctlprintk(ioc, ioc_info(ioc, "%s\n",
2347 __func__));
2348
2349 buffer_type = _ctl_diag_get_bufftype(ioc, karg.unique_id);
2350 if (buffer_type == MPT3_DIAG_UID_NOT_FOUND) {
2351 ioc_err(ioc, "%s: buffer with unique_id(0x%08x) not found\n",
2352 __func__, karg.unique_id);
2353 return -EINVAL;
2354 }
2355
2356 if (!_ctl_diag_capability(ioc, buffer_type)) {
2357 ioc_err(ioc, "%s: doesn't have capability for buffer_type(0x%02x)\n",
2358 __func__, buffer_type);
2359 return -EPERM;
2360 }
2361
2362 if (karg.unique_id != ioc->unique_id[buffer_type]) {
2363 ioc_err(ioc, "%s: unique_id(0x%08x) is not registered\n",
2364 __func__, karg.unique_id);
2365 return -EINVAL;
2366 }
2367
2368 request_data = ioc->diag_buffer[buffer_type];
2369 if (!request_data) {
2370 ioc_err(ioc, "%s: doesn't have buffer for buffer_type(0x%02x)\n",
2371 __func__, buffer_type);
2372 return -ENOMEM;
2373 }
2374
2375 request_size = ioc->diag_buffer_sz[buffer_type];
2376
2377 if ((karg.starting_offset % 4) || (karg.bytes_to_read % 4)) {
2378 ioc_err(ioc, "%s: either the starting_offset or bytes_to_read are not 4 byte aligned\n",
2379 __func__);
2380 return -EINVAL;
2381 }
2382
2383 if (karg.starting_offset > request_size)
2384 return -EINVAL;
2385
2386 diag_data = (void *)(request_data + karg.starting_offset);
2387 dctlprintk(ioc,
2388 ioc_info(ioc, "%s: diag_buffer(%p), offset(%d), sz(%d)\n",
2389 __func__, diag_data, karg.starting_offset,
2390 karg.bytes_to_read));
2391
2392 /* Truncate data on requests that are too large */
2393 if ((diag_data + karg.bytes_to_read < diag_data) ||
2394 (diag_data + karg.bytes_to_read > request_data + request_size))
2395 copy_size = request_size - karg.starting_offset;
2396 else
2397 copy_size = karg.bytes_to_read;
2398
2399 if (copy_to_user((void __user *)uarg->diagnostic_data,
2400 diag_data, copy_size)) {
2401 ioc_err(ioc, "%s: Unable to write mpt_diag_read_buffer_t data @ %p\n",
2402 __func__, diag_data);
2403 return -EFAULT;
2404 }
2405
2406 if ((karg.flags & MPT3_FLAGS_REREGISTER) == 0)
2407 return 0;
2408
2409 dctlprintk(ioc,
2410 ioc_info(ioc, "%s: Reregister buffer_type(0x%02x)\n",
2411 __func__, buffer_type));
2412 if ((ioc->diag_buffer_status[buffer_type] &
2413 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
2414 dctlprintk(ioc,
2415 ioc_info(ioc, "%s: buffer_type(0x%02x) is still registered\n",
2416 __func__, buffer_type));
2417 return 0;
2418 }
2419 /* Get a free request frame and save the message context.
2420 */
2421
2422 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
2423 ioc_err(ioc, "%s: ctl_cmd in use\n", __func__);
2424 rc = -EAGAIN;
2425 goto out;
2426 }
2427
2428 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
2429 if (!smid) {
2430 ioc_err(ioc, "%s: failed obtaining a smid\n", __func__);
2431 rc = -EAGAIN;
2432 goto out;
2433 }
2434
2435 rc = 0;
2436 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
2437 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
2438 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
2439 memset(mpi_request, 0, ioc->request_sz);
2440 ioc->ctl_cmds.smid = smid;
2441
2442 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
2443 mpi_request->BufferType = buffer_type;
2444 mpi_request->BufferLength =
2445 cpu_to_le32(ioc->diag_buffer_sz[buffer_type]);
2446 mpi_request->BufferAddress =
2447 cpu_to_le64(ioc->diag_buffer_dma[buffer_type]);
2448 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
2449 mpi_request->ProductSpecific[i] =
2450 cpu_to_le32(ioc->product_specific[buffer_type][i]);
2451 mpi_request->VF_ID = 0; /* TODO */
2452 mpi_request->VP_ID = 0;
2453
2454 init_completion(&ioc->ctl_cmds.done);
2455 ioc->put_smid_default(ioc, smid);
2456 wait_for_completion_timeout(&ioc->ctl_cmds.done,
2457 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
2458
2459 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
2460 mpt3sas_check_cmd_timeout(ioc,
2461 ioc->ctl_cmds.status, mpi_request,
2462 sizeof(Mpi2DiagBufferPostRequest_t)/4, issue_reset);
2463 goto issue_host_reset;
2464 }
2465
2466 /* process the completed Reply Message Frame */
2467 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
2468 ioc_err(ioc, "%s: no reply message\n", __func__);
2469 rc = -EFAULT;
2470 goto out;
2471 }
2472
2473 mpi_reply = ioc->ctl_cmds.reply;
2474 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
2475
2476 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
2477 ioc->diag_buffer_status[buffer_type] |=
2478 MPT3_DIAG_BUFFER_IS_REGISTERED;
2479 ioc->diag_buffer_status[buffer_type] &=
2480 ~MPT3_DIAG_BUFFER_IS_RELEASED;
2481 dctlprintk(ioc, ioc_info(ioc, "%s: success\n", __func__));
2482 } else {
2483 ioc_info(ioc, "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
2484 __func__, ioc_status,
2485 le32_to_cpu(mpi_reply->IOCLogInfo));
2486 rc = -EFAULT;
2487 }
2488
2489 issue_host_reset:
2490 if (issue_reset)
2491 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
2492
2493 out:
2494
2495 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
2496 return rc;
2497 }
2498
2499 /**
2500 * _ctl_addnl_diag_query - query relevant info associated with diag buffers
2501 * @ioc: per adapter object
2502 * @arg: user space buffer containing ioctl content
2503 *
2504 * The application will send only unique_id. Driver will
2505 * inspect unique_id first, if valid, fill the details related to cause
2506 * for diag buffer release.
2507 */
2508 static long
_ctl_addnl_diag_query(struct MPT3SAS_ADAPTER * ioc,void __user * arg)2509 _ctl_addnl_diag_query(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
2510 {
2511 struct mpt3_addnl_diag_query karg;
2512 u32 buffer_type = 0;
2513
2514 if (copy_from_user(&karg, arg, sizeof(karg))) {
2515 pr_err("%s: failure at %s:%d/%s()!\n",
2516 ioc->name, __FILE__, __LINE__, __func__);
2517 return -EFAULT;
2518 }
2519 dctlprintk(ioc, ioc_info(ioc, "%s\n", __func__));
2520 if (karg.unique_id == 0) {
2521 ioc_err(ioc, "%s: unique_id is(0x%08x)\n",
2522 __func__, karg.unique_id);
2523 return -EPERM;
2524 }
2525 buffer_type = _ctl_diag_get_bufftype(ioc, karg.unique_id);
2526 if (buffer_type == MPT3_DIAG_UID_NOT_FOUND) {
2527 ioc_err(ioc, "%s: buffer with unique_id(0x%08x) not found\n",
2528 __func__, karg.unique_id);
2529 return -EPERM;
2530 }
2531 memset(&karg.rel_query, 0, sizeof(karg.rel_query));
2532 if ((ioc->diag_buffer_status[buffer_type] &
2533 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
2534 ioc_info(ioc, "%s: buffer_type(0x%02x) is not registered\n",
2535 __func__, buffer_type);
2536 goto out;
2537 }
2538 if ((ioc->diag_buffer_status[buffer_type] &
2539 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
2540 ioc_err(ioc, "%s: buffer_type(0x%02x) is not released\n",
2541 __func__, buffer_type);
2542 return -EPERM;
2543 }
2544 memcpy(&karg.rel_query, &ioc->htb_rel, sizeof(karg.rel_query));
2545 out:
2546 if (copy_to_user(arg, &karg, sizeof(struct mpt3_addnl_diag_query))) {
2547 ioc_err(ioc, "%s: unable to write mpt3_addnl_diag_query data @ %p\n",
2548 __func__, arg);
2549 return -EFAULT;
2550 }
2551 return 0;
2552 }
2553
2554 #ifdef CONFIG_COMPAT
2555 /**
2556 * _ctl_compat_mpt_command - convert 32bit pointers to 64bit.
2557 * @ioc: per adapter object
2558 * @cmd: ioctl opcode
2559 * @arg: (struct mpt3_ioctl_command32)
2560 *
2561 * MPT3COMMAND32 - Handle 32bit applications running on 64bit os.
2562 */
2563 static long
_ctl_compat_mpt_command(struct MPT3SAS_ADAPTER * ioc,unsigned cmd,void __user * arg)2564 _ctl_compat_mpt_command(struct MPT3SAS_ADAPTER *ioc, unsigned cmd,
2565 void __user *arg)
2566 {
2567 struct mpt3_ioctl_command32 karg32;
2568 struct mpt3_ioctl_command32 __user *uarg;
2569 struct mpt3_ioctl_command karg;
2570
2571 if (_IOC_SIZE(cmd) != sizeof(struct mpt3_ioctl_command32))
2572 return -EINVAL;
2573
2574 uarg = (struct mpt3_ioctl_command32 __user *) arg;
2575
2576 if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32))) {
2577 pr_err("failure at %s:%d/%s()!\n",
2578 __FILE__, __LINE__, __func__);
2579 return -EFAULT;
2580 }
2581
2582 memset(&karg, 0, sizeof(struct mpt3_ioctl_command));
2583 karg.hdr.ioc_number = karg32.hdr.ioc_number;
2584 karg.hdr.port_number = karg32.hdr.port_number;
2585 karg.hdr.max_data_size = karg32.hdr.max_data_size;
2586 karg.timeout = karg32.timeout;
2587 karg.max_reply_bytes = karg32.max_reply_bytes;
2588 karg.data_in_size = karg32.data_in_size;
2589 karg.data_out_size = karg32.data_out_size;
2590 karg.max_sense_bytes = karg32.max_sense_bytes;
2591 karg.data_sge_offset = karg32.data_sge_offset;
2592 karg.reply_frame_buf_ptr = compat_ptr(karg32.reply_frame_buf_ptr);
2593 karg.data_in_buf_ptr = compat_ptr(karg32.data_in_buf_ptr);
2594 karg.data_out_buf_ptr = compat_ptr(karg32.data_out_buf_ptr);
2595 karg.sense_data_ptr = compat_ptr(karg32.sense_data_ptr);
2596 return _ctl_do_mpt_command(ioc, karg, &uarg->mf);
2597 }
2598 #endif
2599
2600 /**
2601 * _ctl_ioctl_main - main ioctl entry point
2602 * @file: (struct file)
2603 * @cmd: ioctl opcode
2604 * @arg: user space data buffer
2605 * @compat: handles 32 bit applications in 64bit os
2606 * @mpi_version: will be MPI2_VERSION for mpt2ctl ioctl device &
2607 * MPI25_VERSION | MPI26_VERSION for mpt3ctl ioctl device.
2608 */
2609 static long
_ctl_ioctl_main(struct file * file,unsigned int cmd,void __user * arg,u8 compat,u16 mpi_version)2610 _ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg,
2611 u8 compat, u16 mpi_version)
2612 {
2613 struct MPT3SAS_ADAPTER *ioc;
2614 struct mpt3_ioctl_header ioctl_header;
2615 enum block_state state;
2616 long ret = -ENOIOCTLCMD;
2617
2618 /* get IOCTL header */
2619 if (copy_from_user(&ioctl_header, (char __user *)arg,
2620 sizeof(struct mpt3_ioctl_header))) {
2621 pr_err("failure at %s:%d/%s()!\n",
2622 __FILE__, __LINE__, __func__);
2623 return -EFAULT;
2624 }
2625
2626 if (_ctl_verify_adapter(ioctl_header.ioc_number,
2627 &ioc, mpi_version) == -1 || !ioc)
2628 return -ENODEV;
2629
2630 /* pci_access_mutex lock acquired by ioctl path */
2631 mutex_lock(&ioc->pci_access_mutex);
2632
2633 if (ioc->shost_recovery || ioc->pci_error_recovery ||
2634 ioc->is_driver_loading || ioc->remove_host) {
2635 ret = -EAGAIN;
2636 goto out_unlock_pciaccess;
2637 }
2638
2639 state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING;
2640 if (state == NON_BLOCKING) {
2641 if (!mutex_trylock(&ioc->ctl_cmds.mutex)) {
2642 ret = -EAGAIN;
2643 goto out_unlock_pciaccess;
2644 }
2645 } else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) {
2646 ret = -ERESTARTSYS;
2647 goto out_unlock_pciaccess;
2648 }
2649
2650
2651 switch (cmd) {
2652 case MPT3IOCINFO:
2653 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_iocinfo))
2654 ret = _ctl_getiocinfo(ioc, arg);
2655 break;
2656 #ifdef CONFIG_COMPAT
2657 case MPT3COMMAND32:
2658 #endif
2659 case MPT3COMMAND:
2660 {
2661 struct mpt3_ioctl_command __user *uarg;
2662 struct mpt3_ioctl_command karg;
2663
2664 #ifdef CONFIG_COMPAT
2665 if (compat) {
2666 ret = _ctl_compat_mpt_command(ioc, cmd, arg);
2667 break;
2668 }
2669 #endif
2670 if (copy_from_user(&karg, arg, sizeof(karg))) {
2671 pr_err("failure at %s:%d/%s()!\n",
2672 __FILE__, __LINE__, __func__);
2673 ret = -EFAULT;
2674 break;
2675 }
2676
2677 if (karg.hdr.ioc_number != ioctl_header.ioc_number) {
2678 ret = -EINVAL;
2679 break;
2680 }
2681 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_command)) {
2682 uarg = arg;
2683 ret = _ctl_do_mpt_command(ioc, karg, &uarg->mf);
2684 }
2685 break;
2686 }
2687 case MPT3EVENTQUERY:
2688 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventquery))
2689 ret = _ctl_eventquery(ioc, arg);
2690 break;
2691 case MPT3EVENTENABLE:
2692 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventenable))
2693 ret = _ctl_eventenable(ioc, arg);
2694 break;
2695 case MPT3EVENTREPORT:
2696 ret = _ctl_eventreport(ioc, arg);
2697 break;
2698 case MPT3HARDRESET:
2699 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_diag_reset))
2700 ret = _ctl_do_reset(ioc, arg);
2701 break;
2702 case MPT3BTDHMAPPING:
2703 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_btdh_mapping))
2704 ret = _ctl_btdh_mapping(ioc, arg);
2705 break;
2706 case MPT3DIAGREGISTER:
2707 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_register))
2708 ret = _ctl_diag_register(ioc, arg);
2709 break;
2710 case MPT3DIAGUNREGISTER:
2711 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_unregister))
2712 ret = _ctl_diag_unregister(ioc, arg);
2713 break;
2714 case MPT3DIAGQUERY:
2715 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_query))
2716 ret = _ctl_diag_query(ioc, arg);
2717 break;
2718 case MPT3DIAGRELEASE:
2719 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_release))
2720 ret = _ctl_diag_release(ioc, arg);
2721 break;
2722 case MPT3DIAGREADBUFFER:
2723 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_read_buffer))
2724 ret = _ctl_diag_read_buffer(ioc, arg);
2725 break;
2726 case MPT3ADDNLDIAGQUERY:
2727 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_addnl_diag_query))
2728 ret = _ctl_addnl_diag_query(ioc, arg);
2729 break;
2730 default:
2731 dctlprintk(ioc,
2732 ioc_info(ioc, "unsupported ioctl opcode(0x%08x)\n",
2733 cmd));
2734 break;
2735 }
2736
2737 mutex_unlock(&ioc->ctl_cmds.mutex);
2738 out_unlock_pciaccess:
2739 mutex_unlock(&ioc->pci_access_mutex);
2740 return ret;
2741 }
2742
2743 /**
2744 * _ctl_ioctl - mpt3ctl main ioctl entry point (unlocked)
2745 * @file: (struct file)
2746 * @cmd: ioctl opcode
2747 * @arg: ?
2748 */
2749 static long
_ctl_ioctl(struct file * file,unsigned int cmd,unsigned long arg)2750 _ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2751 {
2752 long ret;
2753
2754 /* pass MPI25_VERSION | MPI26_VERSION value,
2755 * to indicate that this ioctl cmd
2756 * came from mpt3ctl ioctl device.
2757 */
2758 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0,
2759 MPI25_VERSION | MPI26_VERSION);
2760 return ret;
2761 }
2762
2763 /**
2764 * _ctl_mpt2_ioctl - mpt2ctl main ioctl entry point (unlocked)
2765 * @file: (struct file)
2766 * @cmd: ioctl opcode
2767 * @arg: ?
2768 */
2769 static long
_ctl_mpt2_ioctl(struct file * file,unsigned int cmd,unsigned long arg)2770 _ctl_mpt2_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2771 {
2772 long ret;
2773
2774 /* pass MPI2_VERSION value, to indicate that this ioctl cmd
2775 * came from mpt2ctl ioctl device.
2776 */
2777 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0, MPI2_VERSION);
2778 return ret;
2779 }
2780 #ifdef CONFIG_COMPAT
2781 /**
2782 * _ctl_ioctl_compat - main ioctl entry point (compat)
2783 * @file: ?
2784 * @cmd: ?
2785 * @arg: ?
2786 *
2787 * This routine handles 32 bit applications in 64bit os.
2788 */
2789 static long
_ctl_ioctl_compat(struct file * file,unsigned cmd,unsigned long arg)2790 _ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
2791 {
2792 long ret;
2793
2794 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1,
2795 MPI25_VERSION | MPI26_VERSION);
2796 return ret;
2797 }
2798
2799 /**
2800 * _ctl_mpt2_ioctl_compat - main ioctl entry point (compat)
2801 * @file: ?
2802 * @cmd: ?
2803 * @arg: ?
2804 *
2805 * This routine handles 32 bit applications in 64bit os.
2806 */
2807 static long
_ctl_mpt2_ioctl_compat(struct file * file,unsigned cmd,unsigned long arg)2808 _ctl_mpt2_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
2809 {
2810 long ret;
2811
2812 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1, MPI2_VERSION);
2813 return ret;
2814 }
2815 #endif
2816
2817 /* scsi host attributes */
2818 /**
2819 * version_fw_show - firmware version
2820 * @cdev: pointer to embedded class device
2821 * @attr: ?
2822 * @buf: the buffer returned
2823 *
2824 * A sysfs 'read-only' shost attribute.
2825 */
2826 static ssize_t
version_fw_show(struct device * cdev,struct device_attribute * attr,char * buf)2827 version_fw_show(struct device *cdev, struct device_attribute *attr,
2828 char *buf)
2829 {
2830 struct Scsi_Host *shost = class_to_shost(cdev);
2831 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2832
2833 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2834 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
2835 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
2836 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
2837 ioc->facts.FWVersion.Word & 0x000000FF);
2838 }
2839 static DEVICE_ATTR_RO(version_fw);
2840
2841 /**
2842 * version_bios_show - bios version
2843 * @cdev: pointer to embedded class device
2844 * @attr: ?
2845 * @buf: the buffer returned
2846 *
2847 * A sysfs 'read-only' shost attribute.
2848 */
2849 static ssize_t
version_bios_show(struct device * cdev,struct device_attribute * attr,char * buf)2850 version_bios_show(struct device *cdev, struct device_attribute *attr,
2851 char *buf)
2852 {
2853 struct Scsi_Host *shost = class_to_shost(cdev);
2854 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2855
2856 u32 version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
2857
2858 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2859 (version & 0xFF000000) >> 24,
2860 (version & 0x00FF0000) >> 16,
2861 (version & 0x0000FF00) >> 8,
2862 version & 0x000000FF);
2863 }
2864 static DEVICE_ATTR_RO(version_bios);
2865
2866 /**
2867 * version_mpi_show - MPI (message passing interface) version
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_mpi_show(struct device * cdev,struct device_attribute * attr,char * buf)2875 version_mpi_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, PAGE_SIZE, "%03x.%02x\n",
2882 ioc->facts.MsgVersion, ioc->facts.HeaderVersion >> 8);
2883 }
2884 static DEVICE_ATTR_RO(version_mpi);
2885
2886 /**
2887 * version_product_show - product name
2888 * @cdev: pointer to embedded class device
2889 * @attr: ?
2890 * @buf: the buffer returned
2891 *
2892 * A sysfs 'read-only' shost attribute.
2893 */
2894 static ssize_t
version_product_show(struct device * cdev,struct device_attribute * attr,char * buf)2895 version_product_show(struct device *cdev, struct device_attribute *attr,
2896 char *buf)
2897 {
2898 struct Scsi_Host *shost = class_to_shost(cdev);
2899 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2900
2901 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.ChipName);
2902 }
2903 static DEVICE_ATTR_RO(version_product);
2904
2905 /**
2906 * version_nvdata_persistent_show - ndvata persistent 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_persistent_show(struct device * cdev,struct device_attribute * attr,char * buf)2914 version_nvdata_persistent_show(struct device *cdev,
2915 struct device_attribute *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.NvdataVersionPersistent.Word));
2922 }
2923 static DEVICE_ATTR_RO(version_nvdata_persistent);
2924
2925 /**
2926 * version_nvdata_default_show - nvdata default version
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
version_nvdata_default_show(struct device * cdev,struct device_attribute * attr,char * buf)2934 version_nvdata_default_show(struct device *cdev, struct device_attribute
2935 *attr, 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, PAGE_SIZE, "%08xh\n",
2941 le32_to_cpu(ioc->iounit_pg0.NvdataVersionDefault.Word));
2942 }
2943 static DEVICE_ATTR_RO(version_nvdata_default);
2944
2945 /**
2946 * board_name_show - board name
2947 * @cdev: pointer to embedded class device
2948 * @attr: ?
2949 * @buf: the buffer returned
2950 *
2951 * A sysfs 'read-only' shost attribute.
2952 */
2953 static ssize_t
board_name_show(struct device * cdev,struct device_attribute * attr,char * buf)2954 board_name_show(struct device *cdev, struct device_attribute *attr,
2955 char *buf)
2956 {
2957 struct Scsi_Host *shost = class_to_shost(cdev);
2958 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2959
2960 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardName);
2961 }
2962 static DEVICE_ATTR_RO(board_name);
2963
2964 /**
2965 * board_assembly_show - board assembly name
2966 * @cdev: pointer to embedded class device
2967 * @attr: ?
2968 * @buf: the buffer returned
2969 *
2970 * A sysfs 'read-only' shost attribute.
2971 */
2972 static ssize_t
board_assembly_show(struct device * cdev,struct device_attribute * attr,char * buf)2973 board_assembly_show(struct device *cdev, struct device_attribute *attr,
2974 char *buf)
2975 {
2976 struct Scsi_Host *shost = class_to_shost(cdev);
2977 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2978
2979 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardAssembly);
2980 }
2981 static DEVICE_ATTR_RO(board_assembly);
2982
2983 /**
2984 * board_tracer_show - board tracer number
2985 * @cdev: pointer to embedded class device
2986 * @attr: ?
2987 * @buf: the buffer returned
2988 *
2989 * A sysfs 'read-only' shost attribute.
2990 */
2991 static ssize_t
board_tracer_show(struct device * cdev,struct device_attribute * attr,char * buf)2992 board_tracer_show(struct device *cdev, struct device_attribute *attr,
2993 char *buf)
2994 {
2995 struct Scsi_Host *shost = class_to_shost(cdev);
2996 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2997
2998 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardTracerNumber);
2999 }
3000 static DEVICE_ATTR_RO(board_tracer);
3001
3002 /**
3003 * io_delay_show - io missing delay
3004 * @cdev: pointer to embedded class device
3005 * @attr: ?
3006 * @buf: the buffer returned
3007 *
3008 * This is for firmware implemention for deboucing device
3009 * removal events.
3010 *
3011 * A sysfs 'read-only' shost attribute.
3012 */
3013 static ssize_t
io_delay_show(struct device * cdev,struct device_attribute * attr,char * buf)3014 io_delay_show(struct device *cdev, struct device_attribute *attr,
3015 char *buf)
3016 {
3017 struct Scsi_Host *shost = class_to_shost(cdev);
3018 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3019
3020 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
3021 }
3022 static DEVICE_ATTR_RO(io_delay);
3023
3024 /**
3025 * device_delay_show - device missing delay
3026 * @cdev: pointer to embedded class device
3027 * @attr: ?
3028 * @buf: the buffer returned
3029 *
3030 * This is for firmware implemention for deboucing device
3031 * removal events.
3032 *
3033 * A sysfs 'read-only' shost attribute.
3034 */
3035 static ssize_t
device_delay_show(struct device * cdev,struct device_attribute * attr,char * buf)3036 device_delay_show(struct device *cdev, struct device_attribute *attr,
3037 char *buf)
3038 {
3039 struct Scsi_Host *shost = class_to_shost(cdev);
3040 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3041
3042 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
3043 }
3044 static DEVICE_ATTR_RO(device_delay);
3045
3046 /**
3047 * fw_queue_depth_show - global credits
3048 * @cdev: pointer to embedded class device
3049 * @attr: ?
3050 * @buf: the buffer returned
3051 *
3052 * This is firmware queue depth limit
3053 *
3054 * A sysfs 'read-only' shost attribute.
3055 */
3056 static ssize_t
fw_queue_depth_show(struct device * cdev,struct device_attribute * attr,char * buf)3057 fw_queue_depth_show(struct device *cdev, struct device_attribute *attr,
3058 char *buf)
3059 {
3060 struct Scsi_Host *shost = class_to_shost(cdev);
3061 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3062
3063 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->facts.RequestCredit);
3064 }
3065 static DEVICE_ATTR_RO(fw_queue_depth);
3066
3067 /**
3068 * host_sas_address_show - sas address
3069 * @cdev: pointer to embedded class device
3070 * @attr: ?
3071 * @buf: the buffer returned
3072 *
3073 * This is the controller sas address
3074 *
3075 * A sysfs 'read-only' shost attribute.
3076 */
3077 static ssize_t
host_sas_address_show(struct device * cdev,struct device_attribute * attr,char * buf)3078 host_sas_address_show(struct device *cdev, struct device_attribute *attr,
3079 char *buf)
3080
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, "0x%016llx\n",
3086 (unsigned long long)ioc->sas_hba.sas_address);
3087 }
3088 static DEVICE_ATTR_RO(host_sas_address);
3089
3090 /**
3091 * logging_level_show - logging level
3092 * @cdev: pointer to embedded class device
3093 * @attr: ?
3094 * @buf: the buffer returned
3095 *
3096 * A sysfs 'read/write' shost attribute.
3097 */
3098 static ssize_t
logging_level_show(struct device * cdev,struct device_attribute * attr,char * buf)3099 logging_level_show(struct device *cdev, struct device_attribute *attr,
3100 char *buf)
3101 {
3102 struct Scsi_Host *shost = class_to_shost(cdev);
3103 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3104
3105 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->logging_level);
3106 }
3107 static ssize_t
logging_level_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3108 logging_level_store(struct device *cdev, struct device_attribute *attr,
3109 const char *buf, size_t count)
3110 {
3111 struct Scsi_Host *shost = class_to_shost(cdev);
3112 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3113 int val = 0;
3114
3115 if (sscanf(buf, "%x", &val) != 1)
3116 return -EINVAL;
3117
3118 ioc->logging_level = val;
3119 ioc_info(ioc, "logging_level=%08xh\n",
3120 ioc->logging_level);
3121 return strlen(buf);
3122 }
3123 static DEVICE_ATTR_RW(logging_level);
3124
3125 /**
3126 * fwfault_debug_show - show/store fwfault_debug
3127 * @cdev: pointer to embedded class device
3128 * @attr: ?
3129 * @buf: the buffer returned
3130 *
3131 * mpt3sas_fwfault_debug is command line option
3132 * A sysfs 'read/write' shost attribute.
3133 */
3134 static ssize_t
fwfault_debug_show(struct device * cdev,struct device_attribute * attr,char * buf)3135 fwfault_debug_show(struct device *cdev, struct device_attribute *attr,
3136 char *buf)
3137 {
3138 struct Scsi_Host *shost = class_to_shost(cdev);
3139 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3140
3141 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->fwfault_debug);
3142 }
3143 static ssize_t
fwfault_debug_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3144 fwfault_debug_store(struct device *cdev, struct device_attribute *attr,
3145 const char *buf, size_t count)
3146 {
3147 struct Scsi_Host *shost = class_to_shost(cdev);
3148 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3149 int val = 0;
3150
3151 if (sscanf(buf, "%d", &val) != 1)
3152 return -EINVAL;
3153
3154 ioc->fwfault_debug = val;
3155 ioc_info(ioc, "fwfault_debug=%d\n",
3156 ioc->fwfault_debug);
3157 return strlen(buf);
3158 }
3159 static DEVICE_ATTR_RW(fwfault_debug);
3160
3161 /**
3162 * ioc_reset_count_show - ioc reset count
3163 * @cdev: pointer to embedded class device
3164 * @attr: ?
3165 * @buf: the buffer returned
3166 *
3167 * This is firmware queue depth limit
3168 *
3169 * A sysfs 'read-only' shost attribute.
3170 */
3171 static ssize_t
ioc_reset_count_show(struct device * cdev,struct device_attribute * attr,char * buf)3172 ioc_reset_count_show(struct device *cdev, struct device_attribute *attr,
3173 char *buf)
3174 {
3175 struct Scsi_Host *shost = class_to_shost(cdev);
3176 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3177
3178 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->ioc_reset_count);
3179 }
3180 static DEVICE_ATTR_RO(ioc_reset_count);
3181
3182 /**
3183 * reply_queue_count_show - number of reply queues
3184 * @cdev: pointer to embedded class device
3185 * @attr: ?
3186 * @buf: the buffer returned
3187 *
3188 * This is number of reply queues
3189 *
3190 * A sysfs 'read-only' shost attribute.
3191 */
3192 static ssize_t
reply_queue_count_show(struct device * cdev,struct device_attribute * attr,char * buf)3193 reply_queue_count_show(struct device *cdev,
3194 struct device_attribute *attr, char *buf)
3195 {
3196 u8 reply_queue_count;
3197 struct Scsi_Host *shost = class_to_shost(cdev);
3198 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3199
3200 if ((ioc->facts.IOCCapabilities &
3201 MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX) && ioc->msix_enable)
3202 reply_queue_count = ioc->reply_queue_count;
3203 else
3204 reply_queue_count = 1;
3205
3206 return snprintf(buf, PAGE_SIZE, "%d\n", reply_queue_count);
3207 }
3208 static DEVICE_ATTR_RO(reply_queue_count);
3209
3210 /**
3211 * BRM_status_show - Backup Rail Monitor Status
3212 * @cdev: pointer to embedded class device
3213 * @attr: ?
3214 * @buf: the buffer returned
3215 *
3216 * This is number of reply queues
3217 *
3218 * A sysfs 'read-only' shost attribute.
3219 */
3220 static ssize_t
BRM_status_show(struct device * cdev,struct device_attribute * attr,char * buf)3221 BRM_status_show(struct device *cdev, struct device_attribute *attr,
3222 char *buf)
3223 {
3224 struct Scsi_Host *shost = class_to_shost(cdev);
3225 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3226 Mpi2IOUnitPage3_t io_unit_pg3;
3227 Mpi2ConfigReply_t mpi_reply;
3228 u16 backup_rail_monitor_status = 0;
3229 u16 ioc_status;
3230 int sz;
3231 ssize_t rc = 0;
3232
3233 if (!ioc->is_warpdrive) {
3234 ioc_err(ioc, "%s: BRM attribute is only for warpdrive\n",
3235 __func__);
3236 return 0;
3237 }
3238 /* pci_access_mutex lock acquired by sysfs show path */
3239 mutex_lock(&ioc->pci_access_mutex);
3240 if (ioc->pci_error_recovery || ioc->remove_host)
3241 goto out;
3242
3243 sz = sizeof(io_unit_pg3);
3244 memset(&io_unit_pg3, 0, sz);
3245
3246 if (mpt3sas_config_get_iounit_pg3(ioc, &mpi_reply, &io_unit_pg3, sz) !=
3247 0) {
3248 ioc_err(ioc, "%s: failed reading iounit_pg3\n",
3249 __func__);
3250 rc = -EINVAL;
3251 goto out;
3252 }
3253
3254 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
3255 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3256 ioc_err(ioc, "%s: iounit_pg3 failed with ioc_status(0x%04x)\n",
3257 __func__, ioc_status);
3258 rc = -EINVAL;
3259 goto out;
3260 }
3261
3262 if (io_unit_pg3.GPIOCount < 25) {
3263 ioc_err(ioc, "%s: iounit_pg3.GPIOCount less than 25 entries, detected (%d) entries\n",
3264 __func__, io_unit_pg3.GPIOCount);
3265 rc = -EINVAL;
3266 goto out;
3267 }
3268
3269 /* BRM status is in bit zero of GPIOVal[24] */
3270 backup_rail_monitor_status = le16_to_cpu(io_unit_pg3.GPIOVal[24]);
3271 rc = snprintf(buf, PAGE_SIZE, "%d\n", (backup_rail_monitor_status & 1));
3272
3273 out:
3274 mutex_unlock(&ioc->pci_access_mutex);
3275 return rc;
3276 }
3277 static DEVICE_ATTR_RO(BRM_status);
3278
3279 struct DIAG_BUFFER_START {
3280 __le32 Size;
3281 __le32 DiagVersion;
3282 u8 BufferType;
3283 u8 Reserved[3];
3284 __le32 Reserved1;
3285 __le32 Reserved2;
3286 __le32 Reserved3;
3287 };
3288
3289 /**
3290 * host_trace_buffer_size_show - host buffer size (trace only)
3291 * @cdev: pointer to embedded class device
3292 * @attr: ?
3293 * @buf: the buffer returned
3294 *
3295 * A sysfs 'read-only' shost attribute.
3296 */
3297 static ssize_t
host_trace_buffer_size_show(struct device * cdev,struct device_attribute * attr,char * buf)3298 host_trace_buffer_size_show(struct device *cdev,
3299 struct device_attribute *attr, char *buf)
3300 {
3301 struct Scsi_Host *shost = class_to_shost(cdev);
3302 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3303 u32 size = 0;
3304 struct DIAG_BUFFER_START *request_data;
3305
3306 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
3307 ioc_err(ioc, "%s: host_trace_buffer is not registered\n",
3308 __func__);
3309 return 0;
3310 }
3311
3312 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3313 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
3314 ioc_err(ioc, "%s: host_trace_buffer is not registered\n",
3315 __func__);
3316 return 0;
3317 }
3318
3319 request_data = (struct DIAG_BUFFER_START *)
3320 ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE];
3321 if ((le32_to_cpu(request_data->DiagVersion) == 0x00000000 ||
3322 le32_to_cpu(request_data->DiagVersion) == 0x01000000 ||
3323 le32_to_cpu(request_data->DiagVersion) == 0x01010000) &&
3324 le32_to_cpu(request_data->Reserved3) == 0x4742444c)
3325 size = le32_to_cpu(request_data->Size);
3326
3327 ioc->ring_buffer_sz = size;
3328 return snprintf(buf, PAGE_SIZE, "%d\n", size);
3329 }
3330 static DEVICE_ATTR_RO(host_trace_buffer_size);
3331
3332 /**
3333 * host_trace_buffer_show - firmware ring buffer (trace only)
3334 * @cdev: pointer to embedded class device
3335 * @attr: ?
3336 * @buf: the buffer returned
3337 *
3338 * A sysfs 'read/write' shost attribute.
3339 *
3340 * You will only be able to read 4k bytes of ring buffer at a time.
3341 * In order to read beyond 4k bytes, you will have to write out the
3342 * offset to the same attribute, it will move the pointer.
3343 */
3344 static ssize_t
host_trace_buffer_show(struct device * cdev,struct device_attribute * attr,char * buf)3345 host_trace_buffer_show(struct device *cdev, struct device_attribute *attr,
3346 char *buf)
3347 {
3348 struct Scsi_Host *shost = class_to_shost(cdev);
3349 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3350 void *request_data;
3351 u32 size;
3352
3353 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
3354 ioc_err(ioc, "%s: host_trace_buffer is not registered\n",
3355 __func__);
3356 return 0;
3357 }
3358
3359 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3360 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
3361 ioc_err(ioc, "%s: host_trace_buffer is not registered\n",
3362 __func__);
3363 return 0;
3364 }
3365
3366 if (ioc->ring_buffer_offset > ioc->ring_buffer_sz)
3367 return 0;
3368
3369 size = ioc->ring_buffer_sz - ioc->ring_buffer_offset;
3370 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size;
3371 request_data = ioc->diag_buffer[0] + ioc->ring_buffer_offset;
3372 memcpy(buf, request_data, size);
3373 return size;
3374 }
3375
3376 static ssize_t
host_trace_buffer_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3377 host_trace_buffer_store(struct device *cdev, struct device_attribute *attr,
3378 const char *buf, size_t count)
3379 {
3380 struct Scsi_Host *shost = class_to_shost(cdev);
3381 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3382 int val = 0;
3383
3384 if (sscanf(buf, "%d", &val) != 1)
3385 return -EINVAL;
3386
3387 ioc->ring_buffer_offset = val;
3388 return strlen(buf);
3389 }
3390 static DEVICE_ATTR_RW(host_trace_buffer);
3391
3392
3393 /*****************************************/
3394
3395 /**
3396 * host_trace_buffer_enable_show - firmware ring buffer (trace only)
3397 * @cdev: pointer to embedded class device
3398 * @attr: ?
3399 * @buf: the buffer returned
3400 *
3401 * A sysfs 'read/write' shost attribute.
3402 *
3403 * This is a mechnism to post/release host_trace_buffers
3404 */
3405 static ssize_t
host_trace_buffer_enable_show(struct device * cdev,struct device_attribute * attr,char * buf)3406 host_trace_buffer_enable_show(struct device *cdev,
3407 struct device_attribute *attr, char *buf)
3408 {
3409 struct Scsi_Host *shost = class_to_shost(cdev);
3410 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3411
3412 if ((!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) ||
3413 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3414 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0))
3415 return snprintf(buf, PAGE_SIZE, "off\n");
3416 else if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3417 MPT3_DIAG_BUFFER_IS_RELEASED))
3418 return snprintf(buf, PAGE_SIZE, "release\n");
3419 else
3420 return snprintf(buf, PAGE_SIZE, "post\n");
3421 }
3422
3423 static ssize_t
host_trace_buffer_enable_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3424 host_trace_buffer_enable_store(struct device *cdev,
3425 struct device_attribute *attr, const char *buf, size_t count)
3426 {
3427 struct Scsi_Host *shost = class_to_shost(cdev);
3428 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3429 char str[10] = "";
3430 struct mpt3_diag_register diag_register;
3431 u8 issue_reset = 0;
3432
3433 /* don't allow post/release occurr while recovery is active */
3434 if (ioc->shost_recovery || ioc->remove_host ||
3435 ioc->pci_error_recovery || ioc->is_driver_loading)
3436 return -EBUSY;
3437
3438 if (sscanf(buf, "%9s", str) != 1)
3439 return -EINVAL;
3440
3441 if (!strcmp(str, "post")) {
3442 /* exit out if host buffers are already posted */
3443 if ((ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) &&
3444 (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3445 MPT3_DIAG_BUFFER_IS_REGISTERED) &&
3446 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3447 MPT3_DIAG_BUFFER_IS_RELEASED) == 0))
3448 goto out;
3449 memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
3450 ioc_info(ioc, "posting host trace buffers\n");
3451 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
3452
3453 if (ioc->manu_pg11.HostTraceBufferMaxSizeKB != 0 &&
3454 ioc->diag_buffer_sz[MPI2_DIAG_BUF_TYPE_TRACE] != 0) {
3455 /* post the same buffer allocated previously */
3456 diag_register.requested_buffer_size =
3457 ioc->diag_buffer_sz[MPI2_DIAG_BUF_TYPE_TRACE];
3458 } else {
3459 /*
3460 * Free the diag buffer memory which was previously
3461 * allocated by an application.
3462 */
3463 if ((ioc->diag_buffer_sz[MPI2_DIAG_BUF_TYPE_TRACE] != 0)
3464 &&
3465 (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3466 MPT3_DIAG_BUFFER_IS_APP_OWNED)) {
3467 dma_free_coherent(&ioc->pdev->dev,
3468 ioc->diag_buffer_sz[MPI2_DIAG_BUF_TYPE_TRACE],
3469 ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE],
3470 ioc->diag_buffer_dma[MPI2_DIAG_BUF_TYPE_TRACE]);
3471 ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE] =
3472 NULL;
3473 }
3474
3475 diag_register.requested_buffer_size = (1024 * 1024);
3476 }
3477
3478 diag_register.unique_id =
3479 (ioc->hba_mpi_version_belonged == MPI2_VERSION) ?
3480 (MPT2DIAGBUFFUNIQUEID):(MPT3DIAGBUFFUNIQUEID);
3481 ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] = 0;
3482 _ctl_diag_register_2(ioc, &diag_register);
3483 if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3484 MPT3_DIAG_BUFFER_IS_REGISTERED) {
3485 ioc_info(ioc,
3486 "Trace buffer %d KB allocated through sysfs\n",
3487 diag_register.requested_buffer_size>>10);
3488 if (ioc->hba_mpi_version_belonged != MPI2_VERSION)
3489 ioc->diag_buffer_status[
3490 MPI2_DIAG_BUF_TYPE_TRACE] |=
3491 MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED;
3492 }
3493 } else if (!strcmp(str, "release")) {
3494 /* exit out if host buffers are already released */
3495 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE])
3496 goto out;
3497 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3498 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0)
3499 goto out;
3500 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3501 MPT3_DIAG_BUFFER_IS_RELEASED))
3502 goto out;
3503 ioc_info(ioc, "releasing host trace buffer\n");
3504 ioc->htb_rel.buffer_rel_condition = MPT3_DIAG_BUFFER_REL_SYSFS;
3505 mpt3sas_send_diag_release(ioc, MPI2_DIAG_BUF_TYPE_TRACE,
3506 &issue_reset);
3507 }
3508
3509 out:
3510 return strlen(buf);
3511 }
3512 static DEVICE_ATTR_RW(host_trace_buffer_enable);
3513
3514 /*********** diagnostic trigger suppport *********************************/
3515
3516 /**
3517 * diag_trigger_master_show - show the diag_trigger_master attribute
3518 * @cdev: pointer to embedded class device
3519 * @attr: ?
3520 * @buf: the buffer returned
3521 *
3522 * A sysfs 'read/write' shost attribute.
3523 */
3524 static ssize_t
diag_trigger_master_show(struct device * cdev,struct device_attribute * attr,char * buf)3525 diag_trigger_master_show(struct device *cdev,
3526 struct device_attribute *attr, char *buf)
3527
3528 {
3529 struct Scsi_Host *shost = class_to_shost(cdev);
3530 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3531 unsigned long flags;
3532 ssize_t rc;
3533
3534 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3535 rc = sizeof(struct SL_WH_MASTER_TRIGGER_T);
3536 memcpy(buf, &ioc->diag_trigger_master, rc);
3537 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3538 return rc;
3539 }
3540
3541 /**
3542 * diag_trigger_master_store - store the diag_trigger_master attribute
3543 * @cdev: pointer to embedded class device
3544 * @attr: ?
3545 * @buf: the buffer returned
3546 * @count: ?
3547 *
3548 * A sysfs 'read/write' shost attribute.
3549 */
3550 static ssize_t
diag_trigger_master_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3551 diag_trigger_master_store(struct device *cdev,
3552 struct device_attribute *attr, const char *buf, size_t count)
3553
3554 {
3555 struct Scsi_Host *shost = class_to_shost(cdev);
3556 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3557 struct SL_WH_MASTER_TRIGGER_T *master_tg;
3558 unsigned long flags;
3559 ssize_t rc;
3560 bool set = 1;
3561
3562 rc = min(sizeof(struct SL_WH_MASTER_TRIGGER_T), count);
3563
3564 if (ioc->supports_trigger_pages) {
3565 master_tg = kzalloc(sizeof(struct SL_WH_MASTER_TRIGGER_T),
3566 GFP_KERNEL);
3567 if (!master_tg)
3568 return -ENOMEM;
3569
3570 memcpy(master_tg, buf, rc);
3571 if (!master_tg->MasterData)
3572 set = 0;
3573 if (mpt3sas_config_update_driver_trigger_pg1(ioc, master_tg,
3574 set)) {
3575 kfree(master_tg);
3576 return -EFAULT;
3577 }
3578 kfree(master_tg);
3579 }
3580
3581 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3582 memset(&ioc->diag_trigger_master, 0,
3583 sizeof(struct SL_WH_MASTER_TRIGGER_T));
3584 memcpy(&ioc->diag_trigger_master, buf, rc);
3585 ioc->diag_trigger_master.MasterData |=
3586 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
3587 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3588 return rc;
3589 }
3590 static DEVICE_ATTR_RW(diag_trigger_master);
3591
3592
3593 /**
3594 * diag_trigger_event_show - show the diag_trigger_event attribute
3595 * @cdev: pointer to embedded class device
3596 * @attr: ?
3597 * @buf: the buffer returned
3598 *
3599 * A sysfs 'read/write' shost attribute.
3600 */
3601 static ssize_t
diag_trigger_event_show(struct device * cdev,struct device_attribute * attr,char * buf)3602 diag_trigger_event_show(struct device *cdev,
3603 struct device_attribute *attr, char *buf)
3604 {
3605 struct Scsi_Host *shost = class_to_shost(cdev);
3606 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3607 unsigned long flags;
3608 ssize_t rc;
3609
3610 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3611 rc = sizeof(struct SL_WH_EVENT_TRIGGERS_T);
3612 memcpy(buf, &ioc->diag_trigger_event, rc);
3613 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3614 return rc;
3615 }
3616
3617 /**
3618 * diag_trigger_event_store - store the diag_trigger_event attribute
3619 * @cdev: pointer to embedded class device
3620 * @attr: ?
3621 * @buf: the buffer returned
3622 * @count: ?
3623 *
3624 * A sysfs 'read/write' shost attribute.
3625 */
3626 static ssize_t
diag_trigger_event_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3627 diag_trigger_event_store(struct device *cdev,
3628 struct device_attribute *attr, const char *buf, size_t count)
3629
3630 {
3631 struct Scsi_Host *shost = class_to_shost(cdev);
3632 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3633 struct SL_WH_EVENT_TRIGGERS_T *event_tg;
3634 unsigned long flags;
3635 ssize_t sz;
3636 bool set = 1;
3637
3638 sz = min(sizeof(struct SL_WH_EVENT_TRIGGERS_T), count);
3639 if (ioc->supports_trigger_pages) {
3640 event_tg = kzalloc(sizeof(struct SL_WH_EVENT_TRIGGERS_T),
3641 GFP_KERNEL);
3642 if (!event_tg)
3643 return -ENOMEM;
3644
3645 memcpy(event_tg, buf, sz);
3646 if (!event_tg->ValidEntries)
3647 set = 0;
3648 if (mpt3sas_config_update_driver_trigger_pg2(ioc, event_tg,
3649 set)) {
3650 kfree(event_tg);
3651 return -EFAULT;
3652 }
3653 kfree(event_tg);
3654 }
3655
3656 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3657
3658 memset(&ioc->diag_trigger_event, 0,
3659 sizeof(struct SL_WH_EVENT_TRIGGERS_T));
3660 memcpy(&ioc->diag_trigger_event, buf, sz);
3661 if (ioc->diag_trigger_event.ValidEntries > NUM_VALID_ENTRIES)
3662 ioc->diag_trigger_event.ValidEntries = NUM_VALID_ENTRIES;
3663 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3664 return sz;
3665 }
3666 static DEVICE_ATTR_RW(diag_trigger_event);
3667
3668
3669 /**
3670 * diag_trigger_scsi_show - show the diag_trigger_scsi attribute
3671 * @cdev: pointer to embedded class device
3672 * @attr: ?
3673 * @buf: the buffer returned
3674 *
3675 * A sysfs 'read/write' shost attribute.
3676 */
3677 static ssize_t
diag_trigger_scsi_show(struct device * cdev,struct device_attribute * attr,char * buf)3678 diag_trigger_scsi_show(struct device *cdev,
3679 struct device_attribute *attr, char *buf)
3680 {
3681 struct Scsi_Host *shost = class_to_shost(cdev);
3682 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3683 unsigned long flags;
3684 ssize_t rc;
3685
3686 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3687 rc = sizeof(struct SL_WH_SCSI_TRIGGERS_T);
3688 memcpy(buf, &ioc->diag_trigger_scsi, rc);
3689 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3690 return rc;
3691 }
3692
3693 /**
3694 * diag_trigger_scsi_store - store the diag_trigger_scsi attribute
3695 * @cdev: pointer to embedded class device
3696 * @attr: ?
3697 * @buf: the buffer returned
3698 * @count: ?
3699 *
3700 * A sysfs 'read/write' shost attribute.
3701 */
3702 static ssize_t
diag_trigger_scsi_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3703 diag_trigger_scsi_store(struct device *cdev,
3704 struct device_attribute *attr, const char *buf, size_t count)
3705 {
3706 struct Scsi_Host *shost = class_to_shost(cdev);
3707 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3708 struct SL_WH_SCSI_TRIGGERS_T *scsi_tg;
3709 unsigned long flags;
3710 ssize_t sz;
3711 bool set = 1;
3712
3713 sz = min(sizeof(struct SL_WH_SCSI_TRIGGERS_T), count);
3714 if (ioc->supports_trigger_pages) {
3715 scsi_tg = kzalloc(sizeof(struct SL_WH_SCSI_TRIGGERS_T),
3716 GFP_KERNEL);
3717 if (!scsi_tg)
3718 return -ENOMEM;
3719
3720 memcpy(scsi_tg, buf, sz);
3721 if (!scsi_tg->ValidEntries)
3722 set = 0;
3723 if (mpt3sas_config_update_driver_trigger_pg3(ioc, scsi_tg,
3724 set)) {
3725 kfree(scsi_tg);
3726 return -EFAULT;
3727 }
3728 kfree(scsi_tg);
3729 }
3730
3731 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3732
3733 memset(&ioc->diag_trigger_scsi, 0, sizeof(ioc->diag_trigger_scsi));
3734 memcpy(&ioc->diag_trigger_scsi, buf, sz);
3735 if (ioc->diag_trigger_scsi.ValidEntries > NUM_VALID_ENTRIES)
3736 ioc->diag_trigger_scsi.ValidEntries = NUM_VALID_ENTRIES;
3737 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3738 return sz;
3739 }
3740 static DEVICE_ATTR_RW(diag_trigger_scsi);
3741
3742
3743 /**
3744 * diag_trigger_mpi_show - show the diag_trigger_mpi attribute
3745 * @cdev: pointer to embedded class device
3746 * @attr: ?
3747 * @buf: the buffer returned
3748 *
3749 * A sysfs 'read/write' shost attribute.
3750 */
3751 static ssize_t
diag_trigger_mpi_show(struct device * cdev,struct device_attribute * attr,char * buf)3752 diag_trigger_mpi_show(struct device *cdev,
3753 struct device_attribute *attr, char *buf)
3754 {
3755 struct Scsi_Host *shost = class_to_shost(cdev);
3756 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3757 unsigned long flags;
3758 ssize_t rc;
3759
3760 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3761 rc = sizeof(struct SL_WH_MPI_TRIGGERS_T);
3762 memcpy(buf, &ioc->diag_trigger_mpi, rc);
3763 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3764 return rc;
3765 }
3766
3767 /**
3768 * diag_trigger_mpi_store - store the diag_trigger_mpi attribute
3769 * @cdev: pointer to embedded class device
3770 * @attr: ?
3771 * @buf: the buffer returned
3772 * @count: ?
3773 *
3774 * A sysfs 'read/write' shost attribute.
3775 */
3776 static ssize_t
diag_trigger_mpi_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3777 diag_trigger_mpi_store(struct device *cdev,
3778 struct device_attribute *attr, const char *buf, size_t count)
3779 {
3780 struct Scsi_Host *shost = class_to_shost(cdev);
3781 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3782 struct SL_WH_MPI_TRIGGERS_T *mpi_tg;
3783 unsigned long flags;
3784 ssize_t sz;
3785 bool set = 1;
3786
3787 sz = min(sizeof(struct SL_WH_MPI_TRIGGERS_T), count);
3788 if (ioc->supports_trigger_pages) {
3789 mpi_tg = kzalloc(sizeof(struct SL_WH_MPI_TRIGGERS_T),
3790 GFP_KERNEL);
3791 if (!mpi_tg)
3792 return -ENOMEM;
3793
3794 memcpy(mpi_tg, buf, sz);
3795 if (!mpi_tg->ValidEntries)
3796 set = 0;
3797 if (mpt3sas_config_update_driver_trigger_pg4(ioc, mpi_tg,
3798 set)) {
3799 kfree(mpi_tg);
3800 return -EFAULT;
3801 }
3802 kfree(mpi_tg);
3803 }
3804
3805 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3806 memset(&ioc->diag_trigger_mpi, 0,
3807 sizeof(ioc->diag_trigger_mpi));
3808 memcpy(&ioc->diag_trigger_mpi, buf, sz);
3809 if (ioc->diag_trigger_mpi.ValidEntries > NUM_VALID_ENTRIES)
3810 ioc->diag_trigger_mpi.ValidEntries = NUM_VALID_ENTRIES;
3811 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3812 return sz;
3813 }
3814
3815 static DEVICE_ATTR_RW(diag_trigger_mpi);
3816
3817 /*********** diagnostic trigger suppport *** END ****************************/
3818
3819 /*****************************************/
3820
3821 /**
3822 * drv_support_bitmap_show - driver supported feature bitmap
3823 * @cdev: pointer to embedded class device
3824 * @attr: unused
3825 * @buf: the buffer returned
3826 *
3827 * A sysfs 'read-only' shost attribute.
3828 */
3829 static ssize_t
drv_support_bitmap_show(struct device * cdev,struct device_attribute * attr,char * buf)3830 drv_support_bitmap_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, "0x%08x\n", ioc->drv_support_bitmap);
3837 }
3838 static DEVICE_ATTR_RO(drv_support_bitmap);
3839
3840 /**
3841 * enable_sdev_max_qd_show - display whether sdev max qd is enabled/disabled
3842 * @cdev: pointer to embedded class device
3843 * @attr: unused
3844 * @buf: the buffer returned
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 */
3849 static ssize_t
enable_sdev_max_qd_show(struct device * cdev,struct device_attribute * attr,char * buf)3850 enable_sdev_max_qd_show(struct device *cdev,
3851 struct device_attribute *attr, char *buf)
3852 {
3853 struct Scsi_Host *shost = class_to_shost(cdev);
3854 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3855
3856 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->enable_sdev_max_qd);
3857 }
3858
3859 /**
3860 * enable_sdev_max_qd_store - Enable/disable sdev max qd
3861 * @cdev: pointer to embedded class device
3862 * @attr: unused
3863 * @buf: the buffer returned
3864 * @count: unused
3865 *
3866 * A sysfs read/write shost attribute. This attribute is used to set the
3867 * targets queue depth to HBA IO queue depth if this attribute is enabled.
3868 * If this attribute is disabled then targets will have corresponding default
3869 * queue depth.
3870 */
3871 static ssize_t
enable_sdev_max_qd_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)3872 enable_sdev_max_qd_store(struct device *cdev,
3873 struct device_attribute *attr, const char *buf, size_t count)
3874 {
3875 struct Scsi_Host *shost = class_to_shost(cdev);
3876 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3877 struct MPT3SAS_DEVICE *sas_device_priv_data;
3878 struct MPT3SAS_TARGET *sas_target_priv_data;
3879 int val = 0;
3880 struct scsi_device *sdev;
3881 struct _raid_device *raid_device;
3882 int qdepth;
3883
3884 if (kstrtoint(buf, 0, &val) != 0)
3885 return -EINVAL;
3886
3887 switch (val) {
3888 case 0:
3889 ioc->enable_sdev_max_qd = 0;
3890 shost_for_each_device(sdev, ioc->shost) {
3891 sas_device_priv_data = sdev->hostdata;
3892 if (!sas_device_priv_data)
3893 continue;
3894 sas_target_priv_data = sas_device_priv_data->sas_target;
3895 if (!sas_target_priv_data)
3896 continue;
3897
3898 if (sas_target_priv_data->flags &
3899 MPT_TARGET_FLAGS_VOLUME) {
3900 raid_device =
3901 mpt3sas_raid_device_find_by_handle(ioc,
3902 sas_target_priv_data->handle);
3903
3904 switch (raid_device->volume_type) {
3905 case MPI2_RAID_VOL_TYPE_RAID0:
3906 if (raid_device->device_info &
3907 MPI2_SAS_DEVICE_INFO_SSP_TARGET)
3908 qdepth =
3909 MPT3SAS_SAS_QUEUE_DEPTH;
3910 else
3911 qdepth =
3912 MPT3SAS_SATA_QUEUE_DEPTH;
3913 break;
3914 case MPI2_RAID_VOL_TYPE_RAID1E:
3915 case MPI2_RAID_VOL_TYPE_RAID1:
3916 case MPI2_RAID_VOL_TYPE_RAID10:
3917 case MPI2_RAID_VOL_TYPE_UNKNOWN:
3918 default:
3919 qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
3920 }
3921 } else if (sas_target_priv_data->flags &
3922 MPT_TARGET_FLAGS_PCIE_DEVICE)
3923 qdepth = ioc->max_nvme_qd;
3924 else
3925 qdepth = (sas_target_priv_data->sas_dev->port_type > 1) ?
3926 ioc->max_wideport_qd : ioc->max_narrowport_qd;
3927
3928 mpt3sas_scsih_change_queue_depth(sdev, qdepth);
3929 }
3930 break;
3931 case 1:
3932 ioc->enable_sdev_max_qd = 1;
3933 shost_for_each_device(sdev, ioc->shost)
3934 mpt3sas_scsih_change_queue_depth(sdev,
3935 shost->can_queue);
3936 break;
3937 default:
3938 return -EINVAL;
3939 }
3940
3941 return strlen(buf);
3942 }
3943 static DEVICE_ATTR_RW(enable_sdev_max_qd);
3944
3945 static struct attribute *mpt3sas_host_attrs[] = {
3946 &dev_attr_version_fw.attr,
3947 &dev_attr_version_bios.attr,
3948 &dev_attr_version_mpi.attr,
3949 &dev_attr_version_product.attr,
3950 &dev_attr_version_nvdata_persistent.attr,
3951 &dev_attr_version_nvdata_default.attr,
3952 &dev_attr_board_name.attr,
3953 &dev_attr_board_assembly.attr,
3954 &dev_attr_board_tracer.attr,
3955 &dev_attr_io_delay.attr,
3956 &dev_attr_device_delay.attr,
3957 &dev_attr_logging_level.attr,
3958 &dev_attr_fwfault_debug.attr,
3959 &dev_attr_fw_queue_depth.attr,
3960 &dev_attr_host_sas_address.attr,
3961 &dev_attr_ioc_reset_count.attr,
3962 &dev_attr_host_trace_buffer_size.attr,
3963 &dev_attr_host_trace_buffer.attr,
3964 &dev_attr_host_trace_buffer_enable.attr,
3965 &dev_attr_reply_queue_count.attr,
3966 &dev_attr_diag_trigger_master.attr,
3967 &dev_attr_diag_trigger_event.attr,
3968 &dev_attr_diag_trigger_scsi.attr,
3969 &dev_attr_diag_trigger_mpi.attr,
3970 &dev_attr_drv_support_bitmap.attr,
3971 &dev_attr_BRM_status.attr,
3972 &dev_attr_enable_sdev_max_qd.attr,
3973 NULL,
3974 };
3975
3976 static const struct attribute_group mpt3sas_host_attr_group = {
3977 .attrs = mpt3sas_host_attrs
3978 };
3979
3980 const struct attribute_group *mpt3sas_host_groups[] = {
3981 &mpt3sas_host_attr_group,
3982 NULL
3983 };
3984
3985 /* device attributes */
3986
3987 /**
3988 * sas_address_show - sas address
3989 * @dev: pointer to embedded class device
3990 * @attr: ?
3991 * @buf: the buffer returned
3992 *
3993 * This is the sas address for the target
3994 *
3995 * A sysfs 'read-only' shost attribute.
3996 */
3997 static ssize_t
sas_address_show(struct device * dev,struct device_attribute * attr,char * buf)3998 sas_address_show(struct device *dev, struct device_attribute *attr,
3999 char *buf)
4000 {
4001 struct scsi_device *sdev = to_scsi_device(dev);
4002 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
4003
4004 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
4005 (unsigned long long)sas_device_priv_data->sas_target->sas_address);
4006 }
4007 static DEVICE_ATTR_RO(sas_address);
4008
4009 /**
4010 * sas_device_handle_show - device handle
4011 * @dev: pointer to embedded class device
4012 * @attr: ?
4013 * @buf: the buffer returned
4014 *
4015 * This is the firmware assigned device handle
4016 *
4017 * A sysfs 'read-only' shost attribute.
4018 */
4019 static ssize_t
sas_device_handle_show(struct device * dev,struct device_attribute * attr,char * buf)4020 sas_device_handle_show(struct device *dev, struct device_attribute *attr,
4021 char *buf)
4022 {
4023 struct scsi_device *sdev = to_scsi_device(dev);
4024 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
4025
4026 return snprintf(buf, PAGE_SIZE, "0x%04x\n",
4027 sas_device_priv_data->sas_target->handle);
4028 }
4029 static DEVICE_ATTR_RO(sas_device_handle);
4030
4031 /**
4032 * sas_ncq_prio_supported_show - Indicate if device supports NCQ priority
4033 * @dev: pointer to embedded device
4034 * @attr: sas_ncq_prio_supported attribute descriptor
4035 * @buf: the buffer returned
4036 *
4037 * A sysfs 'read-only' sdev attribute, only works with SATA
4038 */
4039 static ssize_t
sas_ncq_prio_supported_show(struct device * dev,struct device_attribute * attr,char * buf)4040 sas_ncq_prio_supported_show(struct device *dev,
4041 struct device_attribute *attr, char *buf)
4042 {
4043 struct scsi_device *sdev = to_scsi_device(dev);
4044
4045 return sysfs_emit(buf, "%d\n", sas_ata_ncq_prio_supported(sdev));
4046 }
4047 static DEVICE_ATTR_RO(sas_ncq_prio_supported);
4048
4049 /**
4050 * sas_ncq_prio_enable_show - send prioritized io commands to device
4051 * @dev: pointer to embedded device
4052 * @attr: ?
4053 * @buf: the buffer returned
4054 *
4055 * A sysfs 'read/write' sdev attribute, only works with SATA
4056 */
4057 static ssize_t
sas_ncq_prio_enable_show(struct device * dev,struct device_attribute * attr,char * buf)4058 sas_ncq_prio_enable_show(struct device *dev,
4059 struct device_attribute *attr, char *buf)
4060 {
4061 struct scsi_device *sdev = to_scsi_device(dev);
4062 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
4063
4064 return snprintf(buf, PAGE_SIZE, "%d\n",
4065 sas_device_priv_data->ncq_prio_enable);
4066 }
4067
4068 static ssize_t
sas_ncq_prio_enable_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)4069 sas_ncq_prio_enable_store(struct device *dev,
4070 struct device_attribute *attr,
4071 const char *buf, size_t count)
4072 {
4073 struct scsi_device *sdev = to_scsi_device(dev);
4074 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
4075 bool ncq_prio_enable = 0;
4076
4077 if (kstrtobool(buf, &ncq_prio_enable))
4078 return -EINVAL;
4079
4080 if (!sas_ata_ncq_prio_supported(sdev))
4081 return -EINVAL;
4082
4083 sas_device_priv_data->ncq_prio_enable = ncq_prio_enable;
4084 return strlen(buf);
4085 }
4086 static DEVICE_ATTR_RW(sas_ncq_prio_enable);
4087
4088 static struct attribute *mpt3sas_dev_attrs[] = {
4089 &dev_attr_sas_address.attr,
4090 &dev_attr_sas_device_handle.attr,
4091 &dev_attr_sas_ncq_prio_supported.attr,
4092 &dev_attr_sas_ncq_prio_enable.attr,
4093 NULL,
4094 };
4095
4096 static const struct attribute_group mpt3sas_dev_attr_group = {
4097 .attrs = mpt3sas_dev_attrs
4098 };
4099
4100 const struct attribute_group *mpt3sas_dev_groups[] = {
4101 &mpt3sas_dev_attr_group,
4102 NULL
4103 };
4104
4105 /* file operations table for mpt3ctl device */
4106 static const struct file_operations ctl_fops = {
4107 .owner = THIS_MODULE,
4108 .unlocked_ioctl = _ctl_ioctl,
4109 .poll = _ctl_poll,
4110 .fasync = _ctl_fasync,
4111 #ifdef CONFIG_COMPAT
4112 .compat_ioctl = _ctl_ioctl_compat,
4113 #endif
4114 };
4115
4116 /* file operations table for mpt2ctl device */
4117 static const struct file_operations ctl_gen2_fops = {
4118 .owner = THIS_MODULE,
4119 .unlocked_ioctl = _ctl_mpt2_ioctl,
4120 .poll = _ctl_poll,
4121 .fasync = _ctl_fasync,
4122 #ifdef CONFIG_COMPAT
4123 .compat_ioctl = _ctl_mpt2_ioctl_compat,
4124 #endif
4125 };
4126
4127 static struct miscdevice ctl_dev = {
4128 .minor = MPT3SAS_MINOR,
4129 .name = MPT3SAS_DEV_NAME,
4130 .fops = &ctl_fops,
4131 };
4132
4133 static struct miscdevice gen2_ctl_dev = {
4134 .minor = MPT2SAS_MINOR,
4135 .name = MPT2SAS_DEV_NAME,
4136 .fops = &ctl_gen2_fops,
4137 };
4138
4139 /**
4140 * mpt3sas_ctl_init - main entry point for ctl.
4141 * @hbas_to_enumerate: ?
4142 */
4143 void
mpt3sas_ctl_init(ushort hbas_to_enumerate)4144 mpt3sas_ctl_init(ushort hbas_to_enumerate)
4145 {
4146 async_queue = NULL;
4147
4148 /* Don't register mpt3ctl ioctl device if
4149 * hbas_to_enumarate is one.
4150 */
4151 if (hbas_to_enumerate != 1)
4152 if (misc_register(&ctl_dev) < 0)
4153 pr_err("%s can't register misc device [minor=%d]\n",
4154 MPT3SAS_DRIVER_NAME, MPT3SAS_MINOR);
4155
4156 /* Don't register mpt3ctl ioctl device if
4157 * hbas_to_enumarate is two.
4158 */
4159 if (hbas_to_enumerate != 2)
4160 if (misc_register(&gen2_ctl_dev) < 0)
4161 pr_err("%s can't register misc device [minor=%d]\n",
4162 MPT2SAS_DRIVER_NAME, MPT2SAS_MINOR);
4163
4164 init_waitqueue_head(&ctl_poll_wait);
4165 }
4166
4167 /**
4168 * mpt3sas_ctl_exit - exit point for ctl
4169 * @hbas_to_enumerate: ?
4170 */
4171 void
mpt3sas_ctl_exit(ushort hbas_to_enumerate)4172 mpt3sas_ctl_exit(ushort hbas_to_enumerate)
4173 {
4174 struct MPT3SAS_ADAPTER *ioc;
4175 int i;
4176
4177 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
4178
4179 /* free memory associated to diag buffers */
4180 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
4181 if (!ioc->diag_buffer[i])
4182 continue;
4183 dma_free_coherent(&ioc->pdev->dev,
4184 ioc->diag_buffer_sz[i],
4185 ioc->diag_buffer[i],
4186 ioc->diag_buffer_dma[i]);
4187 ioc->diag_buffer[i] = NULL;
4188 ioc->diag_buffer_status[i] = 0;
4189 }
4190
4191 kfree(ioc->event_log);
4192 }
4193 if (hbas_to_enumerate != 1)
4194 misc_deregister(&ctl_dev);
4195 if (hbas_to_enumerate != 2)
4196 misc_deregister(&gen2_ctl_dev);
4197 }
4198