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drm/rockchip: dw_hdmi_qp: Simplify clock handling
[drm/drm-misc.git] / drivers / scsi / mpt3sas / mpt3sas_ctl.c
blob87784c96249a7fb5d1b8a105aaf0733745b56d2e
1 /*
2 * Management Module Support for MPT (Message Passing Technology) based
3 * controllers
4 *
5 * This code is based on drivers/scsi/mpt3sas/mpt3sas_ctl.c
6 * Copyright (C) 2012-2014 LSI Corporation
7 * Copyright (C) 2013-2014 Avago Technologies
8 * (mailto: MPT-FusionLinux.pdl@avagotech.com)
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * NO WARRANTY
21 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
22 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
23 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
24 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
25 * solely responsible for determining the appropriateness of using and
26 * distributing the Program and assumes all risks associated with its
27 * exercise of rights under this Agreement, including but not limited to
28 * the risks and costs of program errors, damage to or loss of data,
29 * programs or equipment, and unavailability or interruption of operations.
30
31 * DISCLAIMER OF LIABILITY
32 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
33 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
35 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
36 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
37 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
38 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
39
40 * You should have received a copy of the GNU General Public License
41 * along with this program; if not, write to the Free Software
42 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
43 * USA.
44 */
45
46 #include <linux/kernel.h>
47 #include <linux/module.h>
48 #include <linux/errno.h>
49 #include <linux/init.h>
50 #include <linux/slab.h>
51 #include <linux/types.h>
52 #include <linux/pci.h>
53 #include <linux/delay.h>
54 #include <linux/compat.h>
55 #include <linux/poll.h>
56
57 #include <linux/io.h>
58 #include <linux/uaccess.h>
59
60 #include "mpt3sas_base.h"
61 #include "mpt3sas_ctl.h"
62
63
64 static struct fasync_struct *async_queue;
65 static DECLARE_WAIT_QUEUE_HEAD(ctl_poll_wait);
66
67
68 /**
69 * enum block_state - blocking state
70 * @NON_BLOCKING: non blocking
71 * @BLOCKING: blocking
72 *
73 * These states are for ioctls that need to wait for a response
74 * from firmware, so they probably require sleep.
75 */
76 enum block_state {
77 NON_BLOCKING,
78 BLOCKING,
79 };
80
81 /**
82 * _ctl_display_some_debug - debug routine
83 * @ioc: per adapter object
84 * @smid: system request message index
85 * @calling_function_name: string pass from calling function
86 * @mpi_reply: reply message frame
87 * Context: none.
88 *
89 * Function for displaying debug info helpful when debugging issues
90 * in this module.
91 */
92 static void
93 _ctl_display_some_debug(struct MPT3SAS_ADAPTER *ioc, u16 smid,
94 char *calling_function_name, MPI2DefaultReply_t *mpi_reply)
95 {
96 Mpi2ConfigRequest_t *mpi_request;
97 char *desc = NULL;
98
99 if (!(ioc->logging_level & MPT_DEBUG_IOCTL))
100 return;
101
102 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
103 switch (mpi_request->Function) {
104 case MPI2_FUNCTION_SCSI_IO_REQUEST:
105 {
106 Mpi2SCSIIORequest_t *scsi_request =
107 (Mpi2SCSIIORequest_t *)mpi_request;
108
109 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
110 "scsi_io, cmd(0x%02x), cdb_len(%d)",
111 scsi_request->CDB.CDB32[0],
112 le16_to_cpu(scsi_request->IoFlags) & 0xF);
113 desc = ioc->tmp_string;
114 break;
115 }
116 case MPI2_FUNCTION_SCSI_TASK_MGMT:
117 desc = "task_mgmt";
118 break;
119 case MPI2_FUNCTION_IOC_INIT:
120 desc = "ioc_init";
121 break;
122 case MPI2_FUNCTION_IOC_FACTS:
123 desc = "ioc_facts";
124 break;
125 case MPI2_FUNCTION_CONFIG:
126 {
127 Mpi2ConfigRequest_t *config_request =
128 (Mpi2ConfigRequest_t *)mpi_request;
129
130 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
131 "config, type(0x%02x), ext_type(0x%02x), number(%d)",
132 (config_request->Header.PageType &
133 MPI2_CONFIG_PAGETYPE_MASK), config_request->ExtPageType,
134 config_request->Header.PageNumber);
135 desc = ioc->tmp_string;
136 break;
137 }
138 case MPI2_FUNCTION_PORT_FACTS:
139 desc = "port_facts";
140 break;
141 case MPI2_FUNCTION_PORT_ENABLE:
142 desc = "port_enable";
143 break;
144 case MPI2_FUNCTION_EVENT_NOTIFICATION:
145 desc = "event_notification";
146 break;
147 case MPI2_FUNCTION_FW_DOWNLOAD:
148 desc = "fw_download";
149 break;
150 case MPI2_FUNCTION_FW_UPLOAD:
151 desc = "fw_upload";
152 break;
153 case MPI2_FUNCTION_RAID_ACTION:
154 desc = "raid_action";
155 break;
156 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
157 {
158 Mpi2SCSIIORequest_t *scsi_request =
159 (Mpi2SCSIIORequest_t *)mpi_request;
160
161 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
162 "raid_pass, cmd(0x%02x), cdb_len(%d)",
163 scsi_request->CDB.CDB32[0],
164 le16_to_cpu(scsi_request->IoFlags) & 0xF);
165 desc = ioc->tmp_string;
166 break;
167 }
168 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
169 desc = "sas_iounit_cntl";
170 break;
171 case MPI2_FUNCTION_SATA_PASSTHROUGH:
172 desc = "sata_pass";
173 break;
174 case MPI2_FUNCTION_DIAG_BUFFER_POST:
175 desc = "diag_buffer_post";
176 break;
177 case MPI2_FUNCTION_DIAG_RELEASE:
178 desc = "diag_release";
179 break;
180 case MPI2_FUNCTION_SMP_PASSTHROUGH:
181 desc = "smp_passthrough";
182 break;
183 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
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
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
342 mpt3sas_ctl_add_to_event_log(struct MPT3SAS_ADAPTER *ioc,
343 Mpi2EventNotificationReply_t *mpi_reply)
344 {
345 struct MPT3_IOCTL_EVENTS *event_log;
346 u16 event;
347 int i;
348 u32 sz, event_data_sz;
349 u8 send_aen = 0;
350
351 if (!ioc->event_log)
352 return;
353
354 event = le16_to_cpu(mpi_reply->Event);
355
356 if (_ctl_check_event_type(ioc, event)) {
357
358 /* insert entry into circular event_log */
359 i = ioc->event_context % MPT3SAS_CTL_EVENT_LOG_SIZE;
360 event_log = ioc->event_log;
361 event_log[i].event = event;
362 event_log[i].context = ioc->event_context++;
363
364 event_data_sz = le16_to_cpu(mpi_reply->EventDataLength)*4;
365 sz = min_t(u32, event_data_sz, MPT3_EVENT_DATA_SIZE);
366 memset(event_log[i].data, 0, MPT3_EVENT_DATA_SIZE);
367 memcpy(event_log[i].data, mpi_reply->EventData, sz);
368 send_aen = 1;
369 }
370
371 /* This aen_event_read_flag flag is set until the
372 * application has read the event log.
373 * For MPI2_EVENT_LOG_ENTRY_ADDED, we always notify.
374 */
375 if (event == MPI2_EVENT_LOG_ENTRY_ADDED ||
376 (send_aen && !ioc->aen_event_read_flag)) {
377 ioc->aen_event_read_flag = 1;
378 wake_up_interruptible(&ctl_poll_wait);
379 if (async_queue)
380 kill_fasync(&async_queue, SIGIO, POLL_IN);
381 }
382 }
383
384 /**
385 * mpt3sas_ctl_event_callback - firmware event handler (called at ISR time)
386 * @ioc: per adapter object
387 * @msix_index: MSIX table index supplied by the OS
388 * @reply: reply message frame(lower 32bit addr)
389 * Context: interrupt.
390 *
391 * This function merely adds a new work task into ioc->firmware_event_thread.
392 * The tasks are worked from _firmware_event_work in user context.
393 *
394 * Return: 1 meaning mf should be freed from _base_interrupt
395 * 0 means the mf is freed from this function.
396 */
397 u8
398 mpt3sas_ctl_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index,
399 u32 reply)
400 {
401 Mpi2EventNotificationReply_t *mpi_reply;
402
403 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
404 if (mpi_reply)
405 mpt3sas_ctl_add_to_event_log(ioc, mpi_reply);
406 return 1;
407 }
408
409 /**
410 * _ctl_verify_adapter - validates ioc_number passed from application
411 * @ioc_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
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 */
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 */
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 */
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
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
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
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
662 _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
663 void __user *mf)
664 {
665 MPI2RequestHeader_t *mpi_request = NULL, *request;
666 MPI2DefaultReply_t *mpi_reply;
667 Mpi26NVMeEncapsulatedRequest_t *nvme_encap_request = NULL;
668 struct _pcie_device *pcie_device = NULL;
669 u16 smid;
670 unsigned long timeout;
671 u8 issue_reset;
672 u32 sz, sz_arg;
673 void *psge;
674 void *data_out = NULL;
675 dma_addr_t data_out_dma = 0;
676 size_t data_out_sz = 0;
677 void *data_in = NULL;
678 dma_addr_t data_in_dma = 0;
679 size_t data_in_sz = 0;
680 long ret;
681 u16 device_handle = MPT3SAS_INVALID_DEVICE_HANDLE;
682
683 issue_reset = 0;
684
685 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
686 ioc_err(ioc, "%s: ctl_cmd in use\n", __func__);
687 ret = -EAGAIN;
688 goto out;
689 }
690
691 ret = mpt3sas_wait_for_ioc(ioc, IOC_OPERATIONAL_WAIT_COUNT);
692 if (ret)
693 goto out;
694
695 mpi_request = kzalloc(ioc->request_sz, GFP_KERNEL);
696 if (!mpi_request) {
697 ioc_err(ioc, "%s: failed obtaining a memory for mpi_request\n",
698 __func__);
699 ret = -ENOMEM;
700 goto out;
701 }
702
703 /* Check for overflow and wraparound */
704 if (karg.data_sge_offset * 4 > ioc->request_sz ||
705 karg.data_sge_offset > (UINT_MAX / 4)) {
706 ret = -EINVAL;
707 goto out;
708 }
709
710 /* copy in request message frame from user */
711 if (copy_from_user(mpi_request, mf, karg.data_sge_offset*4)) {
712 pr_err("failure at %s:%d/%s()!\n", __FILE__, __LINE__,
713 __func__);
714 ret = -EFAULT;
715 goto out;
716 }
717
718 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
719 smid = mpt3sas_base_get_smid_hpr(ioc, ioc->ctl_cb_idx);
720 if (!smid) {
721 ioc_err(ioc, "%s: failed obtaining a smid\n", __func__);
722 ret = -EAGAIN;
723 goto out;
724 }
725 } else {
726 /* Use first reserved smid for passthrough ioctls */
727 smid = ioc->scsiio_depth - INTERNAL_SCSIIO_CMDS_COUNT + 1;
728 }
729
730 ret = 0;
731 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
732 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
733 request = mpt3sas_base_get_msg_frame(ioc, smid);
734 memset(request, 0, ioc->request_sz);
735 memcpy(request, mpi_request, karg.data_sge_offset*4);
736 ioc->ctl_cmds.smid = smid;
737 data_out_sz = karg.data_out_size;
738 data_in_sz = karg.data_in_size;
739
740 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
741 mpi_request->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
742 mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT ||
743 mpi_request->Function == MPI2_FUNCTION_SATA_PASSTHROUGH ||
744 mpi_request->Function == MPI2_FUNCTION_NVME_ENCAPSULATED) {
745
746 device_handle = le16_to_cpu(mpi_request->FunctionDependent1);
747 if (!device_handle || (device_handle >
748 ioc->facts.MaxDevHandle)) {
749 ret = -EINVAL;
750 mpt3sas_base_free_smid(ioc, smid);
751 goto out;
752 }
753 }
754
755 /* obtain dma-able memory for data transfer */
756 if (data_out_sz) /* WRITE */ {
757 data_out = dma_alloc_coherent(&ioc->pdev->dev, data_out_sz,
758 &data_out_dma, GFP_KERNEL);
759 if (!data_out) {
760 pr_err("failure at %s:%d/%s()!\n", __FILE__,
761 __LINE__, __func__);
762 ret = -ENOMEM;
763 mpt3sas_base_free_smid(ioc, smid);
764 goto out;
765 }
766 if (copy_from_user(data_out, karg.data_out_buf_ptr,
767 data_out_sz)) {
768 pr_err("failure at %s:%d/%s()!\n", __FILE__,
769 __LINE__, __func__);
770 ret = -EFAULT;
771 mpt3sas_base_free_smid(ioc, smid);
772 goto out;
773 }
774 }
775
776 if (data_in_sz) /* READ */ {
777 data_in = dma_alloc_coherent(&ioc->pdev->dev, data_in_sz,
778 &data_in_dma, GFP_KERNEL);
779 if (!data_in) {
780 pr_err("failure at %s:%d/%s()!\n", __FILE__,
781 __LINE__, __func__);
782 ret = -ENOMEM;
783 mpt3sas_base_free_smid(ioc, smid);
784 goto out;
785 }
786 }
787
788 psge = (void *)request + (karg.data_sge_offset*4);
789
790 /* send command to firmware */
791 _ctl_display_some_debug(ioc, smid, "ctl_request", NULL);
792
793 init_completion(&ioc->ctl_cmds.done);
794 switch (mpi_request->Function) {
795 case MPI2_FUNCTION_NVME_ENCAPSULATED:
796 {
797 nvme_encap_request = (Mpi26NVMeEncapsulatedRequest_t *)request;
798 if (!ioc->pcie_sg_lookup) {
799 dtmprintk(ioc, ioc_info(ioc,
800 "HBA doesn't support NVMe. Rejecting NVMe Encapsulated request.\n"
801 ));
802
803 if (ioc->logging_level & MPT_DEBUG_TM)
804 _debug_dump_mf(nvme_encap_request,
805 ioc->request_sz/4);
806 mpt3sas_base_free_smid(ioc, smid);
807 ret = -EINVAL;
808 goto out;
809 }
810 /*
811 * Get the Physical Address of the sense buffer.
812 * Use Error Response buffer address field to hold the sense
813 * buffer address.
814 * Clear the internal sense buffer, which will potentially hold
815 * the Completion Queue Entry on return, or 0 if no Entry.
816 * Build the PRPs and set direction bits.
817 * Send the request.
818 */
819 nvme_encap_request->ErrorResponseBaseAddress =
820 cpu_to_le64(ioc->sense_dma & 0xFFFFFFFF00000000UL);
821 nvme_encap_request->ErrorResponseBaseAddress |=
822 cpu_to_le64(le32_to_cpu(
823 mpt3sas_base_get_sense_buffer_dma(ioc, smid)));
824 nvme_encap_request->ErrorResponseAllocationLength =
825 cpu_to_le16(NVME_ERROR_RESPONSE_SIZE);
826 memset(ioc->ctl_cmds.sense, 0, NVME_ERROR_RESPONSE_SIZE);
827 ioc->build_nvme_prp(ioc, smid, nvme_encap_request,
828 data_out_dma, data_out_sz, data_in_dma, data_in_sz);
829 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
830 dtmprintk(ioc,
831 ioc_info(ioc, "handle(0x%04x): ioctl failed due to device removal in progress\n",
832 device_handle));
833 mpt3sas_base_free_smid(ioc, smid);
834 ret = -EINVAL;
835 goto out;
836 }
837 mpt3sas_base_put_smid_nvme_encap(ioc, smid);
838 break;
839 }
840 case MPI2_FUNCTION_SCSI_IO_REQUEST:
841 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
842 {
843 Mpi2SCSIIORequest_t *scsiio_request =
844 (Mpi2SCSIIORequest_t *)request;
845 scsiio_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
846 scsiio_request->SenseBufferLowAddress =
847 mpt3sas_base_get_sense_buffer_dma(ioc, smid);
848 memset(ioc->ctl_cmds.sense, 0, SCSI_SENSE_BUFFERSIZE);
849 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
850 dtmprintk(ioc,
851 ioc_info(ioc, "handle(0x%04x) :ioctl failed due to device removal in progress\n",
852 device_handle));
853 mpt3sas_base_free_smid(ioc, smid);
854 ret = -EINVAL;
855 goto out;
856 }
857 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
858 data_in_dma, data_in_sz);
859 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)
860 ioc->put_smid_scsi_io(ioc, smid, device_handle);
861 else
862 ioc->put_smid_default(ioc, smid);
863 break;
864 }
865 case MPI2_FUNCTION_SCSI_TASK_MGMT:
866 {
867 Mpi2SCSITaskManagementRequest_t *tm_request =
868 (Mpi2SCSITaskManagementRequest_t *)request;
869
870 dtmprintk(ioc,
871 ioc_info(ioc, "TASK_MGMT: handle(0x%04x), task_type(0x%02x)\n",
872 le16_to_cpu(tm_request->DevHandle),
873 tm_request->TaskType));
874 ioc->got_task_abort_from_ioctl = 1;
875 if (tm_request->TaskType ==
876 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK ||
877 tm_request->TaskType ==
878 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) {
879 if (_ctl_set_task_mid(ioc, &karg, tm_request)) {
880 mpt3sas_base_free_smid(ioc, smid);
881 ioc->got_task_abort_from_ioctl = 0;
882 goto out;
883 }
884 }
885 ioc->got_task_abort_from_ioctl = 0;
886
887 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
888 dtmprintk(ioc,
889 ioc_info(ioc, "handle(0x%04x) :ioctl failed due to device removal in progress\n",
890 device_handle));
891 mpt3sas_base_free_smid(ioc, smid);
892 ret = -EINVAL;
893 goto out;
894 }
895 mpt3sas_scsih_set_tm_flag(ioc, le16_to_cpu(
896 tm_request->DevHandle));
897 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
898 data_in_dma, data_in_sz);
899 ioc->put_smid_hi_priority(ioc, smid, 0);
900 break;
901 }
902 case MPI2_FUNCTION_SMP_PASSTHROUGH:
903 {
904 Mpi2SmpPassthroughRequest_t *smp_request =
905 (Mpi2SmpPassthroughRequest_t *)mpi_request;
906 u8 *data;
907
908 if (!ioc->multipath_on_hba) {
909 /* ioc determines which port to use */
910 smp_request->PhysicalPort = 0xFF;
911 }
912 if (smp_request->PassthroughFlags &
913 MPI2_SMP_PT_REQ_PT_FLAGS_IMMEDIATE)
914 data = (u8 *)&smp_request->SGL;
915 else {
916 if (unlikely(data_out == NULL)) {
917 pr_err("failure at %s:%d/%s()!\n",
918 __FILE__, __LINE__, __func__);
919 mpt3sas_base_free_smid(ioc, smid);
920 ret = -EINVAL;
921 goto out;
922 }
923 data = data_out;
924 }
925
926 if (data[1] == 0x91 && (data[10] == 1 || data[10] == 2)) {
927 ioc->ioc_link_reset_in_progress = 1;
928 ioc->ignore_loginfos = 1;
929 }
930 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
931 data_in_sz);
932 ioc->put_smid_default(ioc, smid);
933 break;
934 }
935 case MPI2_FUNCTION_SATA_PASSTHROUGH:
936 {
937 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
938 dtmprintk(ioc,
939 ioc_info(ioc, "handle(0x%04x) :ioctl failed due to device removal in progress\n",
940 device_handle));
941 mpt3sas_base_free_smid(ioc, smid);
942 ret = -EINVAL;
943 goto out;
944 }
945 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
946 data_in_sz);
947 ioc->put_smid_default(ioc, smid);
948 break;
949 }
950 case MPI2_FUNCTION_FW_DOWNLOAD:
951 {
952 if (ioc->pdev->vendor == MPI2_MFGPAGE_VENDORID_ATTO) {
953 ioc_info(ioc, "Firmware download not supported for ATTO HBA.\n");
954 ret = -EPERM;
955 break;
956 }
957 fallthrough;
958 }
959 case MPI2_FUNCTION_FW_UPLOAD:
960 {
961 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
962 data_in_sz);
963 ioc->put_smid_default(ioc, smid);
964 break;
965 }
966 case MPI2_FUNCTION_TOOLBOX:
967 {
968 Mpi2ToolboxCleanRequest_t *toolbox_request =
969 (Mpi2ToolboxCleanRequest_t *)mpi_request;
970
971 if ((toolbox_request->Tool == MPI2_TOOLBOX_DIAGNOSTIC_CLI_TOOL)
972 || (toolbox_request->Tool ==
973 MPI26_TOOLBOX_BACKEND_PCIE_LANE_MARGIN))
974 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
975 data_in_dma, data_in_sz);
976 else if (toolbox_request->Tool ==
977 MPI2_TOOLBOX_MEMORY_MOVE_TOOL) {
978 Mpi2ToolboxMemMoveRequest_t *mem_move_request =
979 (Mpi2ToolboxMemMoveRequest_t *)request;
980 Mpi2SGESimple64_t tmp, *src = NULL, *dst = NULL;
981
982 ioc->build_sg_mpi(ioc, psge, data_out_dma,
983 data_out_sz, data_in_dma, data_in_sz);
984 if (data_out_sz && !data_in_sz) {
985 dst =
986 (Mpi2SGESimple64_t *)&mem_move_request->SGL;
987 src = (void *)dst + ioc->sge_size;
988
989 memcpy(&tmp, src, ioc->sge_size);
990 memcpy(src, dst, ioc->sge_size);
991 memcpy(dst, &tmp, ioc->sge_size);
992 }
993 if (ioc->logging_level & MPT_DEBUG_TM) {
994 ioc_info(ioc,
995 "Mpi2ToolboxMemMoveRequest_t request msg\n");
996 _debug_dump_mf(mem_move_request,
997 ioc->request_sz/4);
998 }
999 } else
1000 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
1001 data_in_dma, data_in_sz);
1002 ioc->put_smid_default(ioc, smid);
1003 break;
1004 }
1005 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
1006 {
1007 Mpi2SasIoUnitControlRequest_t *sasiounit_request =
1008 (Mpi2SasIoUnitControlRequest_t *)mpi_request;
1009
1010 if (sasiounit_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET
1011 || sasiounit_request->Operation ==
1012 MPI2_SAS_OP_PHY_LINK_RESET) {
1013 ioc->ioc_link_reset_in_progress = 1;
1014 ioc->ignore_loginfos = 1;
1015 }
1016 /* drop to default case for posting the request */
1017 }
1018 fallthrough;
1019 default:
1020 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
1021 data_in_dma, data_in_sz);
1022 ioc->put_smid_default(ioc, smid);
1023 break;
1024 }
1025
1026 if (karg.timeout < MPT3_IOCTL_DEFAULT_TIMEOUT)
1027 timeout = MPT3_IOCTL_DEFAULT_TIMEOUT;
1028 else
1029 timeout = karg.timeout;
1030 wait_for_completion_timeout(&ioc->ctl_cmds.done, timeout*HZ);
1031 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
1032 Mpi2SCSITaskManagementRequest_t *tm_request =
1033 (Mpi2SCSITaskManagementRequest_t *)mpi_request;
1034 mpt3sas_scsih_clear_tm_flag(ioc, le16_to_cpu(
1035 tm_request->DevHandle));
1036 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
1037 } else if ((mpi_request->Function == MPI2_FUNCTION_SMP_PASSTHROUGH ||
1038 mpi_request->Function == MPI2_FUNCTION_SAS_IO_UNIT_CONTROL) &&
1039 ioc->ioc_link_reset_in_progress) {
1040 ioc->ioc_link_reset_in_progress = 0;
1041 ioc->ignore_loginfos = 0;
1042 }
1043 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1044 mpt3sas_check_cmd_timeout(ioc,
1045 ioc->ctl_cmds.status, mpi_request,
1046 karg.data_sge_offset, issue_reset);
1047 goto issue_host_reset;
1048 }
1049
1050 mpi_reply = ioc->ctl_cmds.reply;
1051
1052 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_TASK_MGMT &&
1053 (ioc->logging_level & MPT_DEBUG_TM)) {
1054 Mpi2SCSITaskManagementReply_t *tm_reply =
1055 (Mpi2SCSITaskManagementReply_t *)mpi_reply;
1056
1057 ioc_info(ioc, "TASK_MGMT: IOCStatus(0x%04x), IOCLogInfo(0x%08x), TerminationCount(0x%08x)\n",
1058 le16_to_cpu(tm_reply->IOCStatus),
1059 le32_to_cpu(tm_reply->IOCLogInfo),
1060 le32_to_cpu(tm_reply->TerminationCount));
1061 }
1062
1063 /* copy out xdata to user */
1064 if (data_in_sz) {
1065 if (copy_to_user(karg.data_in_buf_ptr, data_in,
1066 data_in_sz)) {
1067 pr_err("failure at %s:%d/%s()!\n", __FILE__,
1068 __LINE__, __func__);
1069 ret = -ENODATA;
1070 goto out;
1071 }
1072 }
1073
1074 /* copy out reply message frame to user */
1075 if (karg.max_reply_bytes) {
1076 sz = min_t(u32, karg.max_reply_bytes, ioc->reply_sz);
1077 if (copy_to_user(karg.reply_frame_buf_ptr, ioc->ctl_cmds.reply,
1078 sz)) {
1079 pr_err("failure at %s:%d/%s()!\n", __FILE__,
1080 __LINE__, __func__);
1081 ret = -ENODATA;
1082 goto out;
1083 }
1084 }
1085
1086 /* copy out sense/NVMe Error Response to user */
1087 if (karg.max_sense_bytes && (mpi_request->Function ==
1088 MPI2_FUNCTION_SCSI_IO_REQUEST || mpi_request->Function ==
1089 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH || mpi_request->Function ==
1090 MPI2_FUNCTION_NVME_ENCAPSULATED)) {
1091 if (karg.sense_data_ptr == NULL) {
1092 ioc_info(ioc, "Response buffer provided by application is NULL; Response data will not be returned\n");
1093 goto out;
1094 }
1095 sz_arg = (mpi_request->Function ==
1096 MPI2_FUNCTION_NVME_ENCAPSULATED) ? NVME_ERROR_RESPONSE_SIZE :
1097 SCSI_SENSE_BUFFERSIZE;
1098 sz = min_t(u32, karg.max_sense_bytes, sz_arg);
1099 if (copy_to_user(karg.sense_data_ptr, ioc->ctl_cmds.sense,
1100 sz)) {
1101 pr_err("failure at %s:%d/%s()!\n", __FILE__,
1102 __LINE__, __func__);
1103 ret = -ENODATA;
1104 goto out;
1105 }
1106 }
1107
1108 issue_host_reset:
1109 if (issue_reset) {
1110 ret = -ENODATA;
1111 if ((mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
1112 mpi_request->Function ==
1113 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
1114 mpi_request->Function == MPI2_FUNCTION_SATA_PASSTHROUGH)) {
1115 ioc_info(ioc, "issue target reset: handle = (0x%04x)\n",
1116 le16_to_cpu(mpi_request->FunctionDependent1));
1117 mpt3sas_halt_firmware(ioc);
1118 pcie_device = mpt3sas_get_pdev_by_handle(ioc,
1119 le16_to_cpu(mpi_request->FunctionDependent1));
1120 if (pcie_device && (!ioc->tm_custom_handling) &&
1121 (!(mpt3sas_scsih_is_pcie_scsi_device(
1122 pcie_device->device_info))))
1123 mpt3sas_scsih_issue_locked_tm(ioc,
1124 le16_to_cpu(mpi_request->FunctionDependent1),
1125 0, 0, 0,
1126 MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
1127 0, pcie_device->reset_timeout,
1128 MPI26_SCSITASKMGMT_MSGFLAGS_PROTOCOL_LVL_RST_PCIE);
1129 else
1130 mpt3sas_scsih_issue_locked_tm(ioc,
1131 le16_to_cpu(mpi_request->FunctionDependent1),
1132 0, 0, 0,
1133 MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
1134 0, 30, MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET);
1135 } else
1136 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1137 }
1138
1139 out:
1140 if (pcie_device)
1141 pcie_device_put(pcie_device);
1142
1143 /* free memory associated with sg buffers */
1144 if (data_in)
1145 dma_free_coherent(&ioc->pdev->dev, data_in_sz, data_in,
1146 data_in_dma);
1147
1148 if (data_out)
1149 dma_free_coherent(&ioc->pdev->dev, data_out_sz, data_out,
1150 data_out_dma);
1151
1152 kfree(mpi_request);
1153 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1154 return ret;
1155 }
1156
1157 /**
1158 * _ctl_getiocinfo - main handler for MPT3IOCINFO opcode
1159 * @ioc: per adapter object
1160 * @arg: user space buffer containing ioctl content
1161 */
1162 static long
1163 _ctl_getiocinfo(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1164 {
1165 struct mpt3_ioctl_iocinfo karg;
1166
1167 dctlprintk(ioc, ioc_info(ioc, "%s: enter\n",
1168 __func__));
1169
1170 memset(&karg, 0 , sizeof(karg));
1171 if (ioc->pfacts)
1172 karg.port_number = ioc->pfacts[0].PortNumber;
1173 karg.hw_rev = ioc->pdev->revision;
1174 karg.pci_id = ioc->pdev->device;
1175 karg.subsystem_device = ioc->pdev->subsystem_device;
1176 karg.subsystem_vendor = ioc->pdev->subsystem_vendor;
1177 karg.pci_information.u.bits.bus = ioc->pdev->bus->number;
1178 karg.pci_information.u.bits.device = PCI_SLOT(ioc->pdev->devfn);
1179 karg.pci_information.u.bits.function = PCI_FUNC(ioc->pdev->devfn);
1180 karg.pci_information.segment_id = pci_domain_nr(ioc->pdev->bus);
1181 karg.firmware_version = ioc->facts.FWVersion.Word;
1182 strcpy(karg.driver_version, ioc->driver_name);
1183 strcat(karg.driver_version, "-");
1184 switch (ioc->hba_mpi_version_belonged) {
1185 case MPI2_VERSION:
1186 if (ioc->is_warpdrive)
1187 karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2_SSS6200;
1188 else
1189 karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2;
1190 strcat(karg.driver_version, MPT2SAS_DRIVER_VERSION);
1191 break;
1192 case MPI25_VERSION:
1193 case MPI26_VERSION:
1194 if (ioc->is_gen35_ioc)
1195 karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS35;
1196 else
1197 karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS3;
1198 strcat(karg.driver_version, MPT3SAS_DRIVER_VERSION);
1199 break;
1200 }
1201 karg.bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
1202
1203 if (copy_to_user(arg, &karg, sizeof(karg))) {
1204 pr_err("failure at %s:%d/%s()!\n",
1205 __FILE__, __LINE__, __func__);
1206 return -EFAULT;
1207 }
1208 return 0;
1209 }
1210
1211 /**
1212 * _ctl_eventquery - main handler for MPT3EVENTQUERY opcode
1213 * @ioc: per adapter object
1214 * @arg: user space buffer containing ioctl content
1215 */
1216 static long
1217 _ctl_eventquery(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1218 {
1219 struct mpt3_ioctl_eventquery karg;
1220
1221 if (copy_from_user(&karg, arg, sizeof(karg))) {
1222 pr_err("failure at %s:%d/%s()!\n",
1223 __FILE__, __LINE__, __func__);
1224 return -EFAULT;
1225 }
1226
1227 dctlprintk(ioc, ioc_info(ioc, "%s: enter\n",
1228 __func__));
1229
1230 karg.event_entries = MPT3SAS_CTL_EVENT_LOG_SIZE;
1231 memcpy(karg.event_types, ioc->event_type,
1232 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1233
1234 if (copy_to_user(arg, &karg, sizeof(karg))) {
1235 pr_err("failure at %s:%d/%s()!\n",
1236 __FILE__, __LINE__, __func__);
1237 return -EFAULT;
1238 }
1239 return 0;
1240 }
1241
1242 /**
1243 * _ctl_eventenable - main handler for MPT3EVENTENABLE opcode
1244 * @ioc: per adapter object
1245 * @arg: user space buffer containing ioctl content
1246 */
1247 static long
1248 _ctl_eventenable(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1249 {
1250 struct mpt3_ioctl_eventenable karg;
1251
1252 if (copy_from_user(&karg, arg, sizeof(karg))) {
1253 pr_err("failure at %s:%d/%s()!\n",
1254 __FILE__, __LINE__, __func__);
1255 return -EFAULT;
1256 }
1257
1258 dctlprintk(ioc, ioc_info(ioc, "%s: enter\n",
1259 __func__));
1260
1261 memcpy(ioc->event_type, karg.event_types,
1262 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1263 mpt3sas_base_validate_event_type(ioc, ioc->event_type);
1264
1265 if (ioc->event_log)
1266 return 0;
1267 /* initialize event_log */
1268 ioc->event_context = 0;
1269 ioc->aen_event_read_flag = 0;
1270 ioc->event_log = kcalloc(MPT3SAS_CTL_EVENT_LOG_SIZE,
1271 sizeof(struct MPT3_IOCTL_EVENTS), GFP_KERNEL);
1272 if (!ioc->event_log) {
1273 pr_err("failure at %s:%d/%s()!\n",
1274 __FILE__, __LINE__, __func__);
1275 return -ENOMEM;
1276 }
1277 return 0;
1278 }
1279
1280 /**
1281 * _ctl_eventreport - main handler for MPT3EVENTREPORT opcode
1282 * @ioc: per adapter object
1283 * @arg: user space buffer containing ioctl content
1284 */
1285 static long
1286 _ctl_eventreport(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1287 {
1288 struct mpt3_ioctl_eventreport karg;
1289 u32 number_bytes, max_events, max;
1290 struct mpt3_ioctl_eventreport __user *uarg = arg;
1291
1292 if (copy_from_user(&karg, arg, sizeof(karg))) {
1293 pr_err("failure at %s:%d/%s()!\n",
1294 __FILE__, __LINE__, __func__);
1295 return -EFAULT;
1296 }
1297
1298 dctlprintk(ioc, ioc_info(ioc, "%s: enter\n",
1299 __func__));
1300
1301 number_bytes = karg.hdr.max_data_size -
1302 sizeof(struct mpt3_ioctl_header);
1303 max_events = number_bytes/sizeof(struct MPT3_IOCTL_EVENTS);
1304 max = min_t(u32, MPT3SAS_CTL_EVENT_LOG_SIZE, max_events);
1305
1306 /* If fewer than 1 event is requested, there must have
1307 * been some type of error.
1308 */
1309 if (!max || !ioc->event_log)
1310 return -ENODATA;
1311
1312 number_bytes = max * sizeof(struct MPT3_IOCTL_EVENTS);
1313 if (copy_to_user(uarg->event_data, ioc->event_log, number_bytes)) {
1314 pr_err("failure at %s:%d/%s()!\n",
1315 __FILE__, __LINE__, __func__);
1316 return -EFAULT;
1317 }
1318
1319 /* reset flag so SIGIO can restart */
1320 ioc->aen_event_read_flag = 0;
1321 return 0;
1322 }
1323
1324 /**
1325 * _ctl_do_reset - main handler for MPT3HARDRESET opcode
1326 * @ioc: per adapter object
1327 * @arg: user space buffer containing ioctl content
1328 */
1329 static long
1330 _ctl_do_reset(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1331 {
1332 struct mpt3_ioctl_diag_reset karg;
1333 int retval;
1334
1335 if (copy_from_user(&karg, arg, sizeof(karg))) {
1336 pr_err("failure at %s:%d/%s()!\n",
1337 __FILE__, __LINE__, __func__);
1338 return -EFAULT;
1339 }
1340
1341 if (ioc->shost_recovery || ioc->pci_error_recovery ||
1342 ioc->is_driver_loading)
1343 return -EAGAIN;
1344
1345 dctlprintk(ioc, ioc_info(ioc, "%s: enter\n",
1346 __func__));
1347
1348 ioc->reset_from_user = 1;
1349 retval = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1350 ioc_info(ioc,
1351 "Ioctl: host reset: %s\n", ((!retval) ? "SUCCESS" : "FAILED"));
1352 return 0;
1353 }
1354
1355 /**
1356 * _ctl_btdh_search_sas_device - searching for sas device
1357 * @ioc: per adapter object
1358 * @btdh: btdh ioctl payload
1359 */
1360 static int
1361 _ctl_btdh_search_sas_device(struct MPT3SAS_ADAPTER *ioc,
1362 struct mpt3_ioctl_btdh_mapping *btdh)
1363 {
1364 struct _sas_device *sas_device;
1365 unsigned long flags;
1366 int rc = 0;
1367
1368 if (list_empty(&ioc->sas_device_list))
1369 return rc;
1370
1371 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1372 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
1373 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1374 btdh->handle == sas_device->handle) {
1375 btdh->bus = sas_device->channel;
1376 btdh->id = sas_device->id;
1377 rc = 1;
1378 goto out;
1379 } else if (btdh->bus == sas_device->channel && btdh->id ==
1380 sas_device->id && btdh->handle == 0xFFFF) {
1381 btdh->handle = sas_device->handle;
1382 rc = 1;
1383 goto out;
1384 }
1385 }
1386 out:
1387 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1388 return rc;
1389 }
1390
1391 /**
1392 * _ctl_btdh_search_pcie_device - searching for pcie device
1393 * @ioc: per adapter object
1394 * @btdh: btdh ioctl payload
1395 */
1396 static int
1397 _ctl_btdh_search_pcie_device(struct MPT3SAS_ADAPTER *ioc,
1398 struct mpt3_ioctl_btdh_mapping *btdh)
1399 {
1400 struct _pcie_device *pcie_device;
1401 unsigned long flags;
1402 int rc = 0;
1403
1404 if (list_empty(&ioc->pcie_device_list))
1405 return rc;
1406
1407 spin_lock_irqsave(&ioc->pcie_device_lock, flags);
1408 list_for_each_entry(pcie_device, &ioc->pcie_device_list, list) {
1409 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1410 btdh->handle == pcie_device->handle) {
1411 btdh->bus = pcie_device->channel;
1412 btdh->id = pcie_device->id;
1413 rc = 1;
1414 goto out;
1415 } else if (btdh->bus == pcie_device->channel && btdh->id ==
1416 pcie_device->id && btdh->handle == 0xFFFF) {
1417 btdh->handle = pcie_device->handle;
1418 rc = 1;
1419 goto out;
1420 }
1421 }
1422 out:
1423 spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
1424 return rc;
1425 }
1426
1427 /**
1428 * _ctl_btdh_search_raid_device - searching for raid device
1429 * @ioc: per adapter object
1430 * @btdh: btdh ioctl payload
1431 */
1432 static int
1433 _ctl_btdh_search_raid_device(struct MPT3SAS_ADAPTER *ioc,
1434 struct mpt3_ioctl_btdh_mapping *btdh)
1435 {
1436 struct _raid_device *raid_device;
1437 unsigned long flags;
1438 int rc = 0;
1439
1440 if (list_empty(&ioc->raid_device_list))
1441 return rc;
1442
1443 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1444 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
1445 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1446 btdh->handle == raid_device->handle) {
1447 btdh->bus = raid_device->channel;
1448 btdh->id = raid_device->id;
1449 rc = 1;
1450 goto out;
1451 } else if (btdh->bus == raid_device->channel && btdh->id ==
1452 raid_device->id && btdh->handle == 0xFFFF) {
1453 btdh->handle = raid_device->handle;
1454 rc = 1;
1455 goto out;
1456 }
1457 }
1458 out:
1459 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1460 return rc;
1461 }
1462
1463 /**
1464 * _ctl_btdh_mapping - main handler for MPT3BTDHMAPPING opcode
1465 * @ioc: per adapter object
1466 * @arg: user space buffer containing ioctl content
1467 */
1468 static long
1469 _ctl_btdh_mapping(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1470 {
1471 struct mpt3_ioctl_btdh_mapping karg;
1472 int rc;
1473
1474 if (copy_from_user(&karg, arg, sizeof(karg))) {
1475 pr_err("failure at %s:%d/%s()!\n",
1476 __FILE__, __LINE__, __func__);
1477 return -EFAULT;
1478 }
1479
1480 dctlprintk(ioc, ioc_info(ioc, "%s\n",
1481 __func__));
1482
1483 rc = _ctl_btdh_search_sas_device(ioc, &karg);
1484 if (!rc)
1485 rc = _ctl_btdh_search_pcie_device(ioc, &karg);
1486 if (!rc)
1487 _ctl_btdh_search_raid_device(ioc, &karg);
1488
1489 if (copy_to_user(arg, &karg, sizeof(karg))) {
1490 pr_err("failure at %s:%d/%s()!\n",
1491 __FILE__, __LINE__, __func__);
1492 return -EFAULT;
1493 }
1494 return 0;
1495 }
1496
1497 /**
1498 * _ctl_diag_capability - return diag buffer capability
1499 * @ioc: per adapter object
1500 * @buffer_type: specifies either TRACE, SNAPSHOT, or EXTENDED
1501 *
1502 * returns 1 when diag buffer support is enabled in firmware
1503 */
1504 static u8
1505 _ctl_diag_capability(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type)
1506 {
1507 u8 rc = 0;
1508
1509 switch (buffer_type) {
1510 case MPI2_DIAG_BUF_TYPE_TRACE:
1511 if (ioc->facts.IOCCapabilities &
1512 MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER)
1513 rc = 1;
1514 break;
1515 case MPI2_DIAG_BUF_TYPE_SNAPSHOT:
1516 if (ioc->facts.IOCCapabilities &
1517 MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER)
1518 rc = 1;
1519 break;
1520 case MPI2_DIAG_BUF_TYPE_EXTENDED:
1521 if (ioc->facts.IOCCapabilities &
1522 MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER)
1523 rc = 1;
1524 }
1525
1526 return rc;
1527 }
1528
1529 /**
1530 * _ctl_diag_get_bufftype - return diag buffer type
1531 * either TRACE, SNAPSHOT, or EXTENDED
1532 * @ioc: per adapter object
1533 * @unique_id: specifies the unique_id for the buffer
1534 *
1535 * returns MPT3_DIAG_UID_NOT_FOUND if the id not found
1536 */
1537 static u8
1538 _ctl_diag_get_bufftype(struct MPT3SAS_ADAPTER *ioc, u32 unique_id)
1539 {
1540 u8 index;
1541
1542 for (index = 0; index < MPI2_DIAG_BUF_TYPE_COUNT; index++) {
1543 if (ioc->unique_id[index] == unique_id)
1544 return index;
1545 }
1546
1547 return MPT3_DIAG_UID_NOT_FOUND;
1548 }
1549
1550 /**
1551 * _ctl_diag_register_2 - wrapper for registering diag buffer support
1552 * @ioc: per adapter object
1553 * @diag_register: the diag_register struct passed in from user space
1554 *
1555 */
1556 static long
1557 _ctl_diag_register_2(struct MPT3SAS_ADAPTER *ioc,
1558 struct mpt3_diag_register *diag_register)
1559 {
1560 int rc, i;
1561 void *request_data = NULL;
1562 dma_addr_t request_data_dma;
1563 u32 request_data_sz = 0;
1564 Mpi2DiagBufferPostRequest_t *mpi_request;
1565 Mpi2DiagBufferPostReply_t *mpi_reply;
1566 u8 buffer_type;
1567 u16 smid;
1568 u16 ioc_status;
1569 u32 ioc_state;
1570 u8 issue_reset = 0;
1571
1572 dctlprintk(ioc, ioc_info(ioc, "%s\n",
1573 __func__));
1574
1575 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1576 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1577 ioc_err(ioc, "%s: failed due to ioc not operational\n",
1578 __func__);
1579 rc = -EAGAIN;
1580 goto out;
1581 }
1582
1583 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
1584 ioc_err(ioc, "%s: ctl_cmd in use\n", __func__);
1585 rc = -EAGAIN;
1586 goto out;
1587 }
1588
1589 buffer_type = diag_register->buffer_type;
1590 if (!_ctl_diag_capability(ioc, buffer_type)) {
1591 ioc_err(ioc, "%s: doesn't have capability for buffer_type(0x%02x)\n",
1592 __func__, buffer_type);
1593 return -EPERM;
1594 }
1595
1596 if (diag_register->unique_id == 0) {
1597 ioc_err(ioc,
1598 "%s: Invalid UID(0x%08x), buffer_type(0x%02x)\n", __func__,
1599 diag_register->unique_id, buffer_type);
1600 return -EINVAL;
1601 }
1602
1603 if ((ioc->diag_buffer_status[buffer_type] &
1604 MPT3_DIAG_BUFFER_IS_APP_OWNED) &&
1605 !(ioc->diag_buffer_status[buffer_type] &
1606 MPT3_DIAG_BUFFER_IS_RELEASED)) {
1607 ioc_err(ioc,
1608 "%s: buffer_type(0x%02x) is already registered by application with UID(0x%08x)\n",
1609 __func__, buffer_type, ioc->unique_id[buffer_type]);
1610 return -EINVAL;
1611 }
1612
1613 if (ioc->diag_buffer_status[buffer_type] &
1614 MPT3_DIAG_BUFFER_IS_REGISTERED) {
1615 /*
1616 * If driver posts buffer initially, then an application wants
1617 * to Register that buffer (own it) without Releasing first,
1618 * the application Register command MUST have the same buffer
1619 * type and size in the Register command (obtained from the
1620 * Query command). Otherwise that Register command will be
1621 * failed. If the application has released the buffer but wants
1622 * to re-register it, it should be allowed as long as the
1623 * Unique-Id/Size match.
1624 */
1625
1626 if (ioc->unique_id[buffer_type] == MPT3DIAGBUFFUNIQUEID &&
1627 ioc->diag_buffer_sz[buffer_type] ==
1628 diag_register->requested_buffer_size) {
1629
1630 if (!(ioc->diag_buffer_status[buffer_type] &
1631 MPT3_DIAG_BUFFER_IS_RELEASED)) {
1632 dctlprintk(ioc, ioc_info(ioc,
1633 "%s: diag_buffer (%d) ownership changed. old-ID(0x%08x), new-ID(0x%08x)\n",
1634 __func__, buffer_type,
1635 ioc->unique_id[buffer_type],
1636 diag_register->unique_id));
1637
1638 /*
1639 * Application wants to own the buffer with
1640 * the same size.
1641 */
1642 ioc->unique_id[buffer_type] =
1643 diag_register->unique_id;
1644 rc = 0; /* success */
1645 goto out;
1646 }
1647 } else if (ioc->unique_id[buffer_type] !=
1648 MPT3DIAGBUFFUNIQUEID) {
1649 if (ioc->unique_id[buffer_type] !=
1650 diag_register->unique_id ||
1651 ioc->diag_buffer_sz[buffer_type] !=
1652 diag_register->requested_buffer_size ||
1653 !(ioc->diag_buffer_status[buffer_type] &
1654 MPT3_DIAG_BUFFER_IS_RELEASED)) {
1655 ioc_err(ioc,
1656 "%s: already has a registered buffer for buffer_type(0x%02x)\n",
1657 __func__, buffer_type);
1658 return -EINVAL;
1659 }
1660 } else {
1661 ioc_err(ioc, "%s: already has a registered buffer for buffer_type(0x%02x)\n",
1662 __func__, buffer_type);
1663 return -EINVAL;
1664 }
1665 } else if (ioc->diag_buffer_status[buffer_type] &
1666 MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED) {
1667
1668 if (ioc->unique_id[buffer_type] != MPT3DIAGBUFFUNIQUEID ||
1669 ioc->diag_buffer_sz[buffer_type] !=
1670 diag_register->requested_buffer_size) {
1671
1672 ioc_err(ioc,
1673 "%s: already a buffer is allocated for buffer_type(0x%02x) of size %d bytes, so please try registering again with same size\n",
1674 __func__, buffer_type,
1675 ioc->diag_buffer_sz[buffer_type]);
1676 return -EINVAL;
1677 }
1678 }
1679
1680 if (diag_register->requested_buffer_size % 4) {
1681 ioc_err(ioc, "%s: the requested_buffer_size is not 4 byte aligned\n",
1682 __func__);
1683 return -EINVAL;
1684 }
1685
1686 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1687 if (!smid) {
1688 ioc_err(ioc, "%s: failed obtaining a smid\n", __func__);
1689 rc = -EAGAIN;
1690 goto out;
1691 }
1692
1693 rc = 0;
1694 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
1695 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1696 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1697 memset(mpi_request, 0, ioc->request_sz);
1698 ioc->ctl_cmds.smid = smid;
1699
1700 request_data = ioc->diag_buffer[buffer_type];
1701 request_data_sz = diag_register->requested_buffer_size;
1702 ioc->unique_id[buffer_type] = diag_register->unique_id;
1703 /* Reset ioc variables used for additional query commands */
1704 ioc->reset_from_user = 0;
1705 memset(&ioc->htb_rel, 0, sizeof(struct htb_rel_query));
1706 ioc->diag_buffer_status[buffer_type] &=
1707 MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED;
1708 memcpy(ioc->product_specific[buffer_type],
1709 diag_register->product_specific, MPT3_PRODUCT_SPECIFIC_DWORDS);
1710 ioc->diagnostic_flags[buffer_type] = diag_register->diagnostic_flags;
1711
1712 if (request_data) {
1713 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1714 if (request_data_sz != ioc->diag_buffer_sz[buffer_type]) {
1715 dma_free_coherent(&ioc->pdev->dev,
1716 ioc->diag_buffer_sz[buffer_type],
1717 request_data, request_data_dma);
1718 request_data = NULL;
1719 }
1720 }
1721
1722 if (request_data == NULL) {
1723 ioc->diag_buffer_sz[buffer_type] = 0;
1724 ioc->diag_buffer_dma[buffer_type] = 0;
1725 request_data = dma_alloc_coherent(&ioc->pdev->dev,
1726 request_data_sz, &request_data_dma, GFP_KERNEL);
1727 if (request_data == NULL) {
1728 ioc_err(ioc, "%s: failed allocating memory for diag buffers, requested size(%d)\n",
1729 __func__, request_data_sz);
1730 mpt3sas_base_free_smid(ioc, smid);
1731 rc = -ENOMEM;
1732 goto out;
1733 }
1734 ioc->diag_buffer[buffer_type] = request_data;
1735 ioc->diag_buffer_sz[buffer_type] = request_data_sz;
1736 ioc->diag_buffer_dma[buffer_type] = request_data_dma;
1737 }
1738
1739 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
1740 mpi_request->BufferType = diag_register->buffer_type;
1741 mpi_request->Flags = cpu_to_le32(diag_register->diagnostic_flags);
1742 mpi_request->BufferAddress = cpu_to_le64(request_data_dma);
1743 mpi_request->BufferLength = cpu_to_le32(request_data_sz);
1744 mpi_request->VF_ID = 0; /* TODO */
1745 mpi_request->VP_ID = 0;
1746
1747 dctlprintk(ioc,
1748 ioc_info(ioc, "%s: diag_buffer(0x%p), dma(0x%llx), sz(%d)\n",
1749 __func__, request_data,
1750 (unsigned long long)request_data_dma,
1751 le32_to_cpu(mpi_request->BufferLength)));
1752
1753 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
1754 mpi_request->ProductSpecific[i] =
1755 cpu_to_le32(ioc->product_specific[buffer_type][i]);
1756
1757 init_completion(&ioc->ctl_cmds.done);
1758 ioc->put_smid_default(ioc, smid);
1759 wait_for_completion_timeout(&ioc->ctl_cmds.done,
1760 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
1761
1762 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1763 mpt3sas_check_cmd_timeout(ioc,
1764 ioc->ctl_cmds.status, mpi_request,
1765 sizeof(Mpi2DiagBufferPostRequest_t)/4, issue_reset);
1766 goto issue_host_reset;
1767 }
1768
1769 /* process the completed Reply Message Frame */
1770 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
1771 ioc_err(ioc, "%s: no reply message\n", __func__);
1772 rc = -EFAULT;
1773 goto out;
1774 }
1775
1776 mpi_reply = ioc->ctl_cmds.reply;
1777 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1778
1779 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1780 ioc->diag_buffer_status[buffer_type] |=
1781 MPT3_DIAG_BUFFER_IS_REGISTERED;
1782 dctlprintk(ioc, ioc_info(ioc, "%s: success\n", __func__));
1783 } else {
1784 ioc_info(ioc, "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
1785 __func__,
1786 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
1787 rc = -EFAULT;
1788 }
1789
1790 issue_host_reset:
1791 if (issue_reset)
1792 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1793
1794 out:
1795
1796 if (rc && request_data) {
1797 dma_free_coherent(&ioc->pdev->dev, request_data_sz,
1798 request_data, request_data_dma);
1799 ioc->diag_buffer[buffer_type] = NULL;
1800 ioc->diag_buffer_status[buffer_type] &=
1801 ~MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED;
1802 }
1803
1804 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1805 return rc;
1806 }
1807
1808 /**
1809 * mpt3sas_enable_diag_buffer - enabling diag_buffers support driver load time
1810 * @ioc: per adapter object
1811 * @bits_to_register: bitwise field where trace is bit 0, and snapshot is bit 1
1812 *
1813 * This is called when command line option diag_buffer_enable is enabled
1814 * at driver load time.
1815 */
1816 void
1817 mpt3sas_enable_diag_buffer(struct MPT3SAS_ADAPTER *ioc, u8 bits_to_register)
1818 {
1819 struct mpt3_diag_register diag_register;
1820 u32 ret_val;
1821 u32 trace_buff_size = ioc->manu_pg11.HostTraceBufferMaxSizeKB<<10;
1822 u32 min_trace_buff_size = 0;
1823 u32 decr_trace_buff_size = 0;
1824
1825 memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
1826
1827 if (bits_to_register & 1) {
1828 ioc_info(ioc, "registering trace buffer support\n");
1829 ioc->diag_trigger_master.MasterData =
1830 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
1831 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
1832 diag_register.unique_id =
1833 (ioc->hba_mpi_version_belonged == MPI2_VERSION) ?
1834 (MPT2DIAGBUFFUNIQUEID):(MPT3DIAGBUFFUNIQUEID);
1835
1836 if (trace_buff_size != 0) {
1837 diag_register.requested_buffer_size = trace_buff_size;
1838 min_trace_buff_size =
1839 ioc->manu_pg11.HostTraceBufferMinSizeKB<<10;
1840 decr_trace_buff_size =
1841 ioc->manu_pg11.HostTraceBufferDecrementSizeKB<<10;
1842
1843 if (min_trace_buff_size > trace_buff_size) {
1844 /* The buff size is not set correctly */
1845 ioc_err(ioc,
1846 "Min Trace Buff size (%d KB) greater than Max Trace Buff size (%d KB)\n",
1847 min_trace_buff_size>>10,
1848 trace_buff_size>>10);
1849 ioc_err(ioc,
1850 "Using zero Min Trace Buff Size\n");
1851 min_trace_buff_size = 0;
1852 }
1853
1854 if (decr_trace_buff_size == 0) {
1855 /*
1856 * retry the min size if decrement
1857 * is not available.
1858 */
1859 decr_trace_buff_size =
1860 trace_buff_size - min_trace_buff_size;
1861 }
1862 } else {
1863 /* register for 2MB buffers */
1864 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1865 }
1866
1867 do {
1868 ret_val = _ctl_diag_register_2(ioc, &diag_register);
1869
1870 if (ret_val == -ENOMEM && min_trace_buff_size &&
1871 (trace_buff_size - decr_trace_buff_size) >=
1872 min_trace_buff_size) {
1873 /* adjust the buffer size */
1874 trace_buff_size -= decr_trace_buff_size;
1875 diag_register.requested_buffer_size =
1876 trace_buff_size;
1877 } else
1878 break;
1879 } while (true);
1880
1881 if (ret_val == -ENOMEM)
1882 ioc_err(ioc,
1883 "Cannot allocate trace buffer memory. Last memory tried = %d KB\n",
1884 diag_register.requested_buffer_size>>10);
1885 else if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE]
1886 & MPT3_DIAG_BUFFER_IS_REGISTERED) {
1887 ioc_info(ioc, "Trace buffer memory %d KB allocated\n",
1888 diag_register.requested_buffer_size>>10);
1889 if (ioc->hba_mpi_version_belonged != MPI2_VERSION)
1890 ioc->diag_buffer_status[
1891 MPI2_DIAG_BUF_TYPE_TRACE] |=
1892 MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED;
1893 }
1894 }
1895
1896 if (bits_to_register & 2) {
1897 ioc_info(ioc, "registering snapshot buffer support\n");
1898 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_SNAPSHOT;
1899 /* register for 2MB buffers */
1900 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1901 diag_register.unique_id = 0x7075901;
1902 _ctl_diag_register_2(ioc, &diag_register);
1903 }
1904
1905 if (bits_to_register & 4) {
1906 ioc_info(ioc, "registering extended buffer support\n");
1907 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_EXTENDED;
1908 /* register for 2MB buffers */
1909 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1910 diag_register.unique_id = 0x7075901;
1911 _ctl_diag_register_2(ioc, &diag_register);
1912 }
1913 }
1914
1915 /**
1916 * _ctl_diag_register - application register with driver
1917 * @ioc: per adapter object
1918 * @arg: user space buffer containing ioctl content
1919 *
1920 * This will allow the driver to setup any required buffers that will be
1921 * needed by firmware to communicate with the driver.
1922 */
1923 static long
1924 _ctl_diag_register(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1925 {
1926 struct mpt3_diag_register karg;
1927 long rc;
1928
1929 if (copy_from_user(&karg, arg, sizeof(karg))) {
1930 pr_err("failure at %s:%d/%s()!\n",
1931 __FILE__, __LINE__, __func__);
1932 return -EFAULT;
1933 }
1934
1935 rc = _ctl_diag_register_2(ioc, &karg);
1936
1937 if (!rc && (ioc->diag_buffer_status[karg.buffer_type] &
1938 MPT3_DIAG_BUFFER_IS_REGISTERED))
1939 ioc->diag_buffer_status[karg.buffer_type] |=
1940 MPT3_DIAG_BUFFER_IS_APP_OWNED;
1941
1942 return rc;
1943 }
1944
1945 /**
1946 * _ctl_diag_unregister - application unregister with driver
1947 * @ioc: per adapter object
1948 * @arg: user space buffer containing ioctl content
1949 *
1950 * This will allow the driver to cleanup any memory allocated for diag
1951 * messages and to free up any resources.
1952 */
1953 static long
1954 _ctl_diag_unregister(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1955 {
1956 struct mpt3_diag_unregister karg;
1957 void *request_data;
1958 dma_addr_t request_data_dma;
1959 u32 request_data_sz;
1960 u8 buffer_type;
1961
1962 if (copy_from_user(&karg, arg, sizeof(karg))) {
1963 pr_err("failure at %s:%d/%s()!\n",
1964 __FILE__, __LINE__, __func__);
1965 return -EFAULT;
1966 }
1967
1968 dctlprintk(ioc, ioc_info(ioc, "%s\n",
1969 __func__));
1970
1971 buffer_type = _ctl_diag_get_bufftype(ioc, karg.unique_id);
1972 if (buffer_type == MPT3_DIAG_UID_NOT_FOUND) {
1973 ioc_err(ioc, "%s: buffer with unique_id(0x%08x) not found\n",
1974 __func__, karg.unique_id);
1975 return -EINVAL;
1976 }
1977
1978 if (!_ctl_diag_capability(ioc, buffer_type)) {
1979 ioc_err(ioc, "%s: doesn't have capability for buffer_type(0x%02x)\n",
1980 __func__, buffer_type);
1981 return -EPERM;
1982 }
1983
1984 if ((ioc->diag_buffer_status[buffer_type] &
1985 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1986 ioc_err(ioc, "%s: buffer_type(0x%02x) is not registered\n",
1987 __func__, buffer_type);
1988 return -EINVAL;
1989 }
1990 if ((ioc->diag_buffer_status[buffer_type] &
1991 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
1992 ioc_err(ioc, "%s: buffer_type(0x%02x) has not been released\n",
1993 __func__, buffer_type);
1994 return -EINVAL;
1995 }
1996
1997 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1998 ioc_err(ioc, "%s: unique_id(0x%08x) is not registered\n",
1999 __func__, karg.unique_id);
2000 return -EINVAL;
2001 }
2002
2003 request_data = ioc->diag_buffer[buffer_type];
2004 if (!request_data) {
2005 ioc_err(ioc, "%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
2006 __func__, buffer_type);
2007 return -ENOMEM;
2008 }
2009
2010 if (ioc->diag_buffer_status[buffer_type] &
2011 MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED) {
2012 ioc->unique_id[buffer_type] = MPT3DIAGBUFFUNIQUEID;
2013 ioc->diag_buffer_status[buffer_type] &=
2014 ~MPT3_DIAG_BUFFER_IS_APP_OWNED;
2015 ioc->diag_buffer_status[buffer_type] &=
2016 ~MPT3_DIAG_BUFFER_IS_REGISTERED;
2017 } else {
2018 request_data_sz = ioc->diag_buffer_sz[buffer_type];
2019 request_data_dma = ioc->diag_buffer_dma[buffer_type];
2020 dma_free_coherent(&ioc->pdev->dev, request_data_sz,
2021 request_data, request_data_dma);
2022 ioc->diag_buffer[buffer_type] = NULL;
2023 ioc->diag_buffer_status[buffer_type] = 0;
2024 }
2025 return 0;
2026 }
2027
2028 /**
2029 * _ctl_diag_query - query relevant info associated with diag buffers
2030 * @ioc: per adapter object
2031 * @arg: user space buffer containing ioctl content
2032 *
2033 * The application will send only buffer_type and unique_id. Driver will
2034 * inspect unique_id first, if valid, fill in all the info. If unique_id is
2035 * 0x00, the driver will return info specified by Buffer Type.
2036 */
2037 static long
2038 _ctl_diag_query(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
2039 {
2040 struct mpt3_diag_query karg;
2041 void *request_data;
2042 int i;
2043 u8 buffer_type;
2044
2045 if (copy_from_user(&karg, arg, sizeof(karg))) {
2046 pr_err("failure at %s:%d/%s()!\n",
2047 __FILE__, __LINE__, __func__);
2048 return -EFAULT;
2049 }
2050
2051 dctlprintk(ioc, ioc_info(ioc, "%s\n",
2052 __func__));
2053
2054 karg.application_flags = 0;
2055 buffer_type = karg.buffer_type;
2056
2057 if (!_ctl_diag_capability(ioc, buffer_type)) {
2058 ioc_err(ioc, "%s: doesn't have capability for buffer_type(0x%02x)\n",
2059 __func__, buffer_type);
2060 return -EPERM;
2061 }
2062
2063 if (!(ioc->diag_buffer_status[buffer_type] &
2064 MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED)) {
2065 if ((ioc->diag_buffer_status[buffer_type] &
2066 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
2067 ioc_err(ioc, "%s: buffer_type(0x%02x) is not registered\n",
2068 __func__, buffer_type);
2069 return -EINVAL;
2070 }
2071 }
2072
2073 if (karg.unique_id) {
2074 if (karg.unique_id != ioc->unique_id[buffer_type]) {
2075 ioc_err(ioc, "%s: unique_id(0x%08x) is not registered\n",
2076 __func__, karg.unique_id);
2077 return -EINVAL;
2078 }
2079 }
2080
2081 request_data = ioc->diag_buffer[buffer_type];
2082 if (!request_data) {
2083 ioc_err(ioc, "%s: doesn't have buffer for buffer_type(0x%02x)\n",
2084 __func__, buffer_type);
2085 return -ENOMEM;
2086 }
2087
2088 if ((ioc->diag_buffer_status[buffer_type] &
2089 MPT3_DIAG_BUFFER_IS_REGISTERED))
2090 karg.application_flags |= MPT3_APP_FLAGS_BUFFER_VALID;
2091
2092 if (!(ioc->diag_buffer_status[buffer_type] &
2093 MPT3_DIAG_BUFFER_IS_RELEASED))
2094 karg.application_flags |= MPT3_APP_FLAGS_FW_BUFFER_ACCESS;
2095
2096 if (!(ioc->diag_buffer_status[buffer_type] &
2097 MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED))
2098 karg.application_flags |= MPT3_APP_FLAGS_DYNAMIC_BUFFER_ALLOC;
2099
2100 if ((ioc->diag_buffer_status[buffer_type] &
2101 MPT3_DIAG_BUFFER_IS_APP_OWNED))
2102 karg.application_flags |= MPT3_APP_FLAGS_APP_OWNED;
2103
2104 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
2105 karg.product_specific[i] =
2106 ioc->product_specific[buffer_type][i];
2107
2108 karg.total_buffer_size = ioc->diag_buffer_sz[buffer_type];
2109 karg.driver_added_buffer_size = 0;
2110 karg.unique_id = ioc->unique_id[buffer_type];
2111 karg.diagnostic_flags = ioc->diagnostic_flags[buffer_type];
2112
2113 if (copy_to_user(arg, &karg, sizeof(struct mpt3_diag_query))) {
2114 ioc_err(ioc, "%s: unable to write mpt3_diag_query data @ %p\n",
2115 __func__, arg);
2116 return -EFAULT;
2117 }
2118 return 0;
2119 }
2120
2121 /**
2122 * mpt3sas_send_diag_release - Diag Release Message
2123 * @ioc: per adapter object
2124 * @buffer_type: specifies either TRACE, SNAPSHOT, or EXTENDED
2125 * @issue_reset: specifies whether host reset is required.
2126 *
2127 */
2128 int
2129 mpt3sas_send_diag_release(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type,
2130 u8 *issue_reset)
2131 {
2132 Mpi2DiagReleaseRequest_t *mpi_request;
2133 Mpi2DiagReleaseReply_t *mpi_reply;
2134 u16 smid;
2135 u16 ioc_status;
2136 u32 ioc_state;
2137 int rc;
2138 u8 reset_needed = 0;
2139
2140 dctlprintk(ioc, ioc_info(ioc, "%s\n",
2141 __func__));
2142
2143 rc = 0;
2144 *issue_reset = 0;
2145
2146
2147 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
2148 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
2149 if (ioc->diag_buffer_status[buffer_type] &
2150 MPT3_DIAG_BUFFER_IS_REGISTERED)
2151 ioc->diag_buffer_status[buffer_type] |=
2152 MPT3_DIAG_BUFFER_IS_RELEASED;
2153 dctlprintk(ioc,
2154 ioc_info(ioc, "%s: skipping due to FAULT state\n",
2155 __func__));
2156 rc = -EAGAIN;
2157 goto out;
2158 }
2159
2160 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
2161 ioc_err(ioc, "%s: ctl_cmd in use\n", __func__);
2162 rc = -EAGAIN;
2163 goto out;
2164 }
2165
2166 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
2167 if (!smid) {
2168 ioc_err(ioc, "%s: failed obtaining a smid\n", __func__);
2169 rc = -EAGAIN;
2170 goto out;
2171 }
2172
2173 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
2174 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
2175 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
2176 memset(mpi_request, 0, ioc->request_sz);
2177 ioc->ctl_cmds.smid = smid;
2178
2179 mpi_request->Function = MPI2_FUNCTION_DIAG_RELEASE;
2180 mpi_request->BufferType = buffer_type;
2181 mpi_request->VF_ID = 0; /* TODO */
2182 mpi_request->VP_ID = 0;
2183
2184 init_completion(&ioc->ctl_cmds.done);
2185 ioc->put_smid_default(ioc, smid);
2186 wait_for_completion_timeout(&ioc->ctl_cmds.done,
2187 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
2188
2189 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
2190 mpt3sas_check_cmd_timeout(ioc,
2191 ioc->ctl_cmds.status, mpi_request,
2192 sizeof(Mpi2DiagReleaseRequest_t)/4, reset_needed);
2193 *issue_reset = reset_needed;
2194 rc = -EFAULT;
2195 goto out;
2196 }
2197
2198 /* process the completed Reply Message Frame */
2199 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
2200 ioc_err(ioc, "%s: no reply message\n", __func__);
2201 rc = -EFAULT;
2202 goto out;
2203 }
2204
2205 mpi_reply = ioc->ctl_cmds.reply;
2206 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
2207
2208 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
2209 ioc->diag_buffer_status[buffer_type] |=
2210 MPT3_DIAG_BUFFER_IS_RELEASED;
2211 dctlprintk(ioc, ioc_info(ioc, "%s: success\n", __func__));
2212 } else {
2213 ioc_info(ioc, "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
2214 __func__,
2215 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
2216 rc = -EFAULT;
2217 }
2218
2219 out:
2220 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
2221 return rc;
2222 }
2223
2224 /**
2225 * _ctl_diag_release - request to send Diag Release Message to firmware
2226 * @ioc: ?
2227 * @arg: user space buffer containing ioctl content
2228 *
2229 * This allows ownership of the specified buffer to returned to the driver,
2230 * allowing an application to read the buffer without fear that firmware is
2231 * overwriting information in the buffer.
2232 */
2233 static long
2234 _ctl_diag_release(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
2235 {
2236 struct mpt3_diag_release karg;
2237 void *request_data;
2238 int rc;
2239 u8 buffer_type;
2240 u8 issue_reset = 0;
2241
2242 if (copy_from_user(&karg, arg, sizeof(karg))) {
2243 pr_err("failure at %s:%d/%s()!\n",
2244 __FILE__, __LINE__, __func__);
2245 return -EFAULT;
2246 }
2247
2248 dctlprintk(ioc, ioc_info(ioc, "%s\n",
2249 __func__));
2250
2251 buffer_type = _ctl_diag_get_bufftype(ioc, karg.unique_id);
2252 if (buffer_type == MPT3_DIAG_UID_NOT_FOUND) {
2253 ioc_err(ioc, "%s: buffer with unique_id(0x%08x) not found\n",
2254 __func__, karg.unique_id);
2255 return -EINVAL;
2256 }
2257
2258 if (!_ctl_diag_capability(ioc, buffer_type)) {
2259 ioc_err(ioc, "%s: doesn't have capability for buffer_type(0x%02x)\n",
2260 __func__, buffer_type);
2261 return -EPERM;
2262 }
2263
2264 if ((ioc->diag_buffer_status[buffer_type] &
2265 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
2266 ioc_err(ioc, "%s: buffer_type(0x%02x) is not registered\n",
2267 __func__, buffer_type);
2268 return -EINVAL;
2269 }
2270
2271 if (karg.unique_id != ioc->unique_id[buffer_type]) {
2272 ioc_err(ioc, "%s: unique_id(0x%08x) is not registered\n",
2273 __func__, karg.unique_id);
2274 return -EINVAL;
2275 }
2276
2277 if (ioc->diag_buffer_status[buffer_type] &
2278 MPT3_DIAG_BUFFER_IS_RELEASED) {
2279 ioc_err(ioc, "%s: buffer_type(0x%02x) is already released\n",
2280 __func__, buffer_type);
2281 return -EINVAL;
2282 }
2283
2284 request_data = ioc->diag_buffer[buffer_type];
2285
2286 if (!request_data) {
2287 ioc_err(ioc, "%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
2288 __func__, buffer_type);
2289 return -ENOMEM;
2290 }
2291
2292 /* buffers were released by due to host reset */
2293 if ((ioc->diag_buffer_status[buffer_type] &
2294 MPT3_DIAG_BUFFER_IS_DIAG_RESET)) {
2295 ioc->diag_buffer_status[buffer_type] |=
2296 MPT3_DIAG_BUFFER_IS_RELEASED;
2297 ioc->diag_buffer_status[buffer_type] &=
2298 ~MPT3_DIAG_BUFFER_IS_DIAG_RESET;
2299 ioc_err(ioc, "%s: buffer_type(0x%02x) was released due to host reset\n",
2300 __func__, buffer_type);
2301 return 0;
2302 }
2303
2304 rc = mpt3sas_send_diag_release(ioc, buffer_type, &issue_reset);
2305
2306 if (issue_reset)
2307 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
2308
2309 return rc;
2310 }
2311
2312 /**
2313 * _ctl_diag_read_buffer - request for copy of the diag buffer
2314 * @ioc: per adapter object
2315 * @arg: user space buffer containing ioctl content
2316 */
2317 static long
2318 _ctl_diag_read_buffer(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
2319 {
2320 struct mpt3_diag_read_buffer karg;
2321 struct mpt3_diag_read_buffer __user *uarg = arg;
2322 void *request_data, *diag_data;
2323 Mpi2DiagBufferPostRequest_t *mpi_request;
2324 Mpi2DiagBufferPostReply_t *mpi_reply;
2325 int rc, i;
2326 u8 buffer_type;
2327 unsigned long request_size, copy_size;
2328 u16 smid;
2329 u16 ioc_status;
2330 u8 issue_reset = 0;
2331
2332 if (copy_from_user(&karg, arg, sizeof(karg))) {
2333 pr_err("failure at %s:%d/%s()!\n",
2334 __FILE__, __LINE__, __func__);
2335 return -EFAULT;
2336 }
2337
2338 dctlprintk(ioc, ioc_info(ioc, "%s\n",
2339 __func__));
2340
2341 buffer_type = _ctl_diag_get_bufftype(ioc, karg.unique_id);
2342 if (buffer_type == MPT3_DIAG_UID_NOT_FOUND) {
2343 ioc_err(ioc, "%s: buffer with unique_id(0x%08x) not found\n",
2344 __func__, karg.unique_id);
2345 return -EINVAL;
2346 }
2347
2348 if (!_ctl_diag_capability(ioc, buffer_type)) {
2349 ioc_err(ioc, "%s: doesn't have capability for buffer_type(0x%02x)\n",
2350 __func__, buffer_type);
2351 return -EPERM;
2352 }
2353
2354 if (karg.unique_id != ioc->unique_id[buffer_type]) {
2355 ioc_err(ioc, "%s: unique_id(0x%08x) is not registered\n",
2356 __func__, karg.unique_id);
2357 return -EINVAL;
2358 }
2359
2360 request_data = ioc->diag_buffer[buffer_type];
2361 if (!request_data) {
2362 ioc_err(ioc, "%s: doesn't have buffer for buffer_type(0x%02x)\n",
2363 __func__, buffer_type);
2364 return -ENOMEM;
2365 }
2366
2367 request_size = ioc->diag_buffer_sz[buffer_type];
2368
2369 if ((karg.starting_offset % 4) || (karg.bytes_to_read % 4)) {
2370 ioc_err(ioc, "%s: either the starting_offset or bytes_to_read are not 4 byte aligned\n",
2371 __func__);
2372 return -EINVAL;
2373 }
2374
2375 if (karg.starting_offset > request_size)
2376 return -EINVAL;
2377
2378 diag_data = (void *)(request_data + karg.starting_offset);
2379 dctlprintk(ioc,
2380 ioc_info(ioc, "%s: diag_buffer(%p), offset(%d), sz(%d)\n",
2381 __func__, diag_data, karg.starting_offset,
2382 karg.bytes_to_read));
2383
2384 /* Truncate data on requests that are too large */
2385 if ((diag_data + karg.bytes_to_read < diag_data) ||
2386 (diag_data + karg.bytes_to_read > request_data + request_size))
2387 copy_size = request_size - karg.starting_offset;
2388 else
2389 copy_size = karg.bytes_to_read;
2390
2391 if (copy_to_user((void __user *)uarg->diagnostic_data,
2392 diag_data, copy_size)) {
2393 ioc_err(ioc, "%s: Unable to write mpt_diag_read_buffer_t data @ %p\n",
2394 __func__, diag_data);
2395 return -EFAULT;
2396 }
2397
2398 if ((karg.flags & MPT3_FLAGS_REREGISTER) == 0)
2399 return 0;
2400
2401 dctlprintk(ioc,
2402 ioc_info(ioc, "%s: Reregister buffer_type(0x%02x)\n",
2403 __func__, buffer_type));
2404 if ((ioc->diag_buffer_status[buffer_type] &
2405 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
2406 dctlprintk(ioc,
2407 ioc_info(ioc, "%s: buffer_type(0x%02x) is still registered\n",
2408 __func__, buffer_type));
2409 return 0;
2410 }
2411 /* Get a free request frame and save the message context.
2412 */
2413
2414 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
2415 ioc_err(ioc, "%s: ctl_cmd in use\n", __func__);
2416 rc = -EAGAIN;
2417 goto out;
2418 }
2419
2420 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
2421 if (!smid) {
2422 ioc_err(ioc, "%s: failed obtaining a smid\n", __func__);
2423 rc = -EAGAIN;
2424 goto out;
2425 }
2426
2427 rc = 0;
2428 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
2429 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
2430 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
2431 memset(mpi_request, 0, ioc->request_sz);
2432 ioc->ctl_cmds.smid = smid;
2433
2434 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
2435 mpi_request->BufferType = buffer_type;
2436 mpi_request->BufferLength =
2437 cpu_to_le32(ioc->diag_buffer_sz[buffer_type]);
2438 mpi_request->BufferAddress =
2439 cpu_to_le64(ioc->diag_buffer_dma[buffer_type]);
2440 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
2441 mpi_request->ProductSpecific[i] =
2442 cpu_to_le32(ioc->product_specific[buffer_type][i]);
2443 mpi_request->VF_ID = 0; /* TODO */
2444 mpi_request->VP_ID = 0;
2445
2446 init_completion(&ioc->ctl_cmds.done);
2447 ioc->put_smid_default(ioc, smid);
2448 wait_for_completion_timeout(&ioc->ctl_cmds.done,
2449 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
2450
2451 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
2452 mpt3sas_check_cmd_timeout(ioc,
2453 ioc->ctl_cmds.status, mpi_request,
2454 sizeof(Mpi2DiagBufferPostRequest_t)/4, issue_reset);
2455 goto issue_host_reset;
2456 }
2457
2458 /* process the completed Reply Message Frame */
2459 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
2460 ioc_err(ioc, "%s: no reply message\n", __func__);
2461 rc = -EFAULT;
2462 goto out;
2463 }
2464
2465 mpi_reply = ioc->ctl_cmds.reply;
2466 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
2467
2468 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
2469 ioc->diag_buffer_status[buffer_type] |=
2470 MPT3_DIAG_BUFFER_IS_REGISTERED;
2471 ioc->diag_buffer_status[buffer_type] &=
2472 ~MPT3_DIAG_BUFFER_IS_RELEASED;
2473 dctlprintk(ioc, ioc_info(ioc, "%s: success\n", __func__));
2474 } else {
2475 ioc_info(ioc, "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
2476 __func__, ioc_status,
2477 le32_to_cpu(mpi_reply->IOCLogInfo));
2478 rc = -EFAULT;
2479 }
2480
2481 issue_host_reset:
2482 if (issue_reset)
2483 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
2484
2485 out:
2486
2487 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
2488 return rc;
2489 }
2490
2491 /**
2492 * _ctl_addnl_diag_query - query relevant info associated with diag buffers
2493 * @ioc: per adapter object
2494 * @arg: user space buffer containing ioctl content
2495 *
2496 * The application will send only unique_id. Driver will
2497 * inspect unique_id first, if valid, fill the details related to cause
2498 * for diag buffer release.
2499 */
2500 static long
2501 _ctl_addnl_diag_query(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
2502 {
2503 struct mpt3_addnl_diag_query karg;
2504 u32 buffer_type = 0;
2505
2506 if (copy_from_user(&karg, arg, sizeof(karg))) {
2507 pr_err("%s: failure at %s:%d/%s()!\n",
2508 ioc->name, __FILE__, __LINE__, __func__);
2509 return -EFAULT;
2510 }
2511 dctlprintk(ioc, ioc_info(ioc, "%s\n", __func__));
2512 if (karg.unique_id == 0) {
2513 ioc_err(ioc, "%s: unique_id is(0x%08x)\n",
2514 __func__, karg.unique_id);
2515 return -EPERM;
2516 }
2517 buffer_type = _ctl_diag_get_bufftype(ioc, karg.unique_id);
2518 if (buffer_type == MPT3_DIAG_UID_NOT_FOUND) {
2519 ioc_err(ioc, "%s: buffer with unique_id(0x%08x) not found\n",
2520 __func__, karg.unique_id);
2521 return -EPERM;
2522 }
2523 memset(&karg.rel_query, 0, sizeof(karg.rel_query));
2524 if ((ioc->diag_buffer_status[buffer_type] &
2525 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
2526 ioc_info(ioc, "%s: buffer_type(0x%02x) is not registered\n",
2527 __func__, buffer_type);
2528 goto out;
2529 }
2530 if ((ioc->diag_buffer_status[buffer_type] &
2531 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
2532 ioc_err(ioc, "%s: buffer_type(0x%02x) is not released\n",
2533 __func__, buffer_type);
2534 return -EPERM;
2535 }
2536 memcpy(&karg.rel_query, &ioc->htb_rel, sizeof(karg.rel_query));
2537 out:
2538 if (copy_to_user(arg, &karg, sizeof(struct mpt3_addnl_diag_query))) {
2539 ioc_err(ioc, "%s: unable to write mpt3_addnl_diag_query data @ %p\n",
2540 __func__, arg);
2541 return -EFAULT;
2542 }
2543 return 0;
2544 }
2545
2546 /**
2547 * _ctl_enable_diag_sbr_reload - enable sbr reload bit
2548 * @ioc: per adapter object
2549 * @arg: user space buffer containing ioctl content
2550 *
2551 * Enable the SBR reload bit
2552 */
2553 static int
2554 _ctl_enable_diag_sbr_reload(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
2555 {
2556 u32 ioc_state, host_diagnostic;
2557
2558 if (ioc->shost_recovery ||
2559 ioc->pci_error_recovery || ioc->is_driver_loading ||
2560 ioc->remove_host)
2561 return -EAGAIN;
2562
2563 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
2564
2565 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL)
2566 return -EFAULT;
2567
2568 host_diagnostic = ioc->base_readl(&ioc->chip->HostDiagnostic);
2569
2570 if (host_diagnostic & MPI2_DIAG_SBR_RELOAD)
2571 return 0;
2572
2573 if (mutex_trylock(&ioc->hostdiag_unlock_mutex)) {
2574 if (mpt3sas_base_unlock_and_get_host_diagnostic(ioc, &host_diagnostic)) {
2575 mutex_unlock(&ioc->hostdiag_unlock_mutex);
2576 return -EFAULT;
2577 }
2578 } else
2579 return -EAGAIN;
2580
2581 host_diagnostic |= MPI2_DIAG_SBR_RELOAD;
2582 writel(host_diagnostic, &ioc->chip->HostDiagnostic);
2583 host_diagnostic = ioc->base_readl(&ioc->chip->HostDiagnostic);
2584 mpt3sas_base_lock_host_diagnostic(ioc);
2585 mutex_unlock(&ioc->hostdiag_unlock_mutex);
2586
2587 if (!(host_diagnostic & MPI2_DIAG_SBR_RELOAD)) {
2588 ioc_err(ioc, "%s: Failed to set Diag SBR Reload Bit\n", __func__);
2589 return -EFAULT;
2590 }
2591
2592 ioc_info(ioc, "%s: Successfully set the Diag SBR Reload Bit\n", __func__);
2593 return 0;
2594 }
2595
2596 #ifdef CONFIG_COMPAT
2597 /**
2598 * _ctl_compat_mpt_command - convert 32bit pointers to 64bit.
2599 * @ioc: per adapter object
2600 * @cmd: ioctl opcode
2601 * @arg: (struct mpt3_ioctl_command32)
2602 *
2603 * MPT3COMMAND32 - Handle 32bit applications running on 64bit os.
2604 */
2605 static long
2606 _ctl_compat_mpt_command(struct MPT3SAS_ADAPTER *ioc, unsigned cmd,
2607 void __user *arg)
2608 {
2609 struct mpt3_ioctl_command32 karg32;
2610 struct mpt3_ioctl_command32 __user *uarg;
2611 struct mpt3_ioctl_command karg;
2612
2613 if (_IOC_SIZE(cmd) != sizeof(struct mpt3_ioctl_command32))
2614 return -EINVAL;
2615
2616 uarg = (struct mpt3_ioctl_command32 __user *) arg;
2617
2618 if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32))) {
2619 pr_err("failure at %s:%d/%s()!\n",
2620 __FILE__, __LINE__, __func__);
2621 return -EFAULT;
2622 }
2623
2624 memset(&karg, 0, sizeof(struct mpt3_ioctl_command));
2625 karg.hdr.ioc_number = karg32.hdr.ioc_number;
2626 karg.hdr.port_number = karg32.hdr.port_number;
2627 karg.hdr.max_data_size = karg32.hdr.max_data_size;
2628 karg.timeout = karg32.timeout;
2629 karg.max_reply_bytes = karg32.max_reply_bytes;
2630 karg.data_in_size = karg32.data_in_size;
2631 karg.data_out_size = karg32.data_out_size;
2632 karg.max_sense_bytes = karg32.max_sense_bytes;
2633 karg.data_sge_offset = karg32.data_sge_offset;
2634 karg.reply_frame_buf_ptr = compat_ptr(karg32.reply_frame_buf_ptr);
2635 karg.data_in_buf_ptr = compat_ptr(karg32.data_in_buf_ptr);
2636 karg.data_out_buf_ptr = compat_ptr(karg32.data_out_buf_ptr);
2637 karg.sense_data_ptr = compat_ptr(karg32.sense_data_ptr);
2638 return _ctl_do_mpt_command(ioc, karg, &uarg->mf);
2639 }
2640 #endif
2641
2642 /**
2643 * _ctl_ioctl_main - main ioctl entry point
2644 * @file: (struct file)
2645 * @cmd: ioctl opcode
2646 * @arg: user space data buffer
2647 * @compat: handles 32 bit applications in 64bit os
2648 * @mpi_version: will be MPI2_VERSION for mpt2ctl ioctl device &
2649 * MPI25_VERSION | MPI26_VERSION for mpt3ctl ioctl device.
2650 */
2651 static long
2652 _ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg,
2653 u8 compat, u16 mpi_version)
2654 {
2655 struct MPT3SAS_ADAPTER *ioc;
2656 struct mpt3_ioctl_header ioctl_header;
2657 enum block_state state;
2658 long ret = -ENOIOCTLCMD;
2659
2660 /* get IOCTL header */
2661 if (copy_from_user(&ioctl_header, (char __user *)arg,
2662 sizeof(struct mpt3_ioctl_header))) {
2663 pr_err("failure at %s:%d/%s()!\n",
2664 __FILE__, __LINE__, __func__);
2665 return -EFAULT;
2666 }
2667
2668 if (_ctl_verify_adapter(ioctl_header.ioc_number,
2669 &ioc, mpi_version) == -1 || !ioc)
2670 return -ENODEV;
2671
2672 /* pci_access_mutex lock acquired by ioctl path */
2673 mutex_lock(&ioc->pci_access_mutex);
2674
2675 if (ioc->shost_recovery || ioc->pci_error_recovery ||
2676 ioc->is_driver_loading || ioc->remove_host) {
2677 ret = -EAGAIN;
2678 goto out_unlock_pciaccess;
2679 }
2680
2681 state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING;
2682 if (state == NON_BLOCKING) {
2683 if (!mutex_trylock(&ioc->ctl_cmds.mutex)) {
2684 ret = -EAGAIN;
2685 goto out_unlock_pciaccess;
2686 }
2687 } else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) {
2688 ret = -ERESTARTSYS;
2689 goto out_unlock_pciaccess;
2690 }
2691
2692
2693 switch (cmd) {
2694 case MPT3IOCINFO:
2695 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_iocinfo))
2696 ret = _ctl_getiocinfo(ioc, arg);
2697 break;
2698 #ifdef CONFIG_COMPAT
2699 case MPT3COMMAND32:
2700 #endif
2701 case MPT3COMMAND:
2702 {
2703 struct mpt3_ioctl_command __user *uarg;
2704 struct mpt3_ioctl_command karg;
2705
2706 #ifdef CONFIG_COMPAT
2707 if (compat) {
2708 ret = _ctl_compat_mpt_command(ioc, cmd, arg);
2709 break;
2710 }
2711 #endif
2712 if (copy_from_user(&karg, arg, sizeof(karg))) {
2713 pr_err("failure at %s:%d/%s()!\n",
2714 __FILE__, __LINE__, __func__);
2715 ret = -EFAULT;
2716 break;
2717 }
2718
2719 if (karg.hdr.ioc_number != ioctl_header.ioc_number) {
2720 ret = -EINVAL;
2721 break;
2722 }
2723 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_command)) {
2724 uarg = arg;
2725 ret = _ctl_do_mpt_command(ioc, karg, &uarg->mf);
2726 }
2727 break;
2728 }
2729 case MPT3EVENTQUERY:
2730 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventquery))
2731 ret = _ctl_eventquery(ioc, arg);
2732 break;
2733 case MPT3EVENTENABLE:
2734 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventenable))
2735 ret = _ctl_eventenable(ioc, arg);
2736 break;
2737 case MPT3EVENTREPORT:
2738 ret = _ctl_eventreport(ioc, arg);
2739 break;
2740 case MPT3HARDRESET:
2741 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_diag_reset))
2742 ret = _ctl_do_reset(ioc, arg);
2743 break;
2744 case MPT3BTDHMAPPING:
2745 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_btdh_mapping))
2746 ret = _ctl_btdh_mapping(ioc, arg);
2747 break;
2748 case MPT3DIAGREGISTER:
2749 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_register))
2750 ret = _ctl_diag_register(ioc, arg);
2751 break;
2752 case MPT3DIAGUNREGISTER:
2753 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_unregister))
2754 ret = _ctl_diag_unregister(ioc, arg);
2755 break;
2756 case MPT3DIAGQUERY:
2757 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_query))
2758 ret = _ctl_diag_query(ioc, arg);
2759 break;
2760 case MPT3DIAGRELEASE:
2761 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_release))
2762 ret = _ctl_diag_release(ioc, arg);
2763 break;
2764 case MPT3DIAGREADBUFFER:
2765 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_read_buffer))
2766 ret = _ctl_diag_read_buffer(ioc, arg);
2767 break;
2768 case MPT3ADDNLDIAGQUERY:
2769 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_addnl_diag_query))
2770 ret = _ctl_addnl_diag_query(ioc, arg);
2771 break;
2772 case MPT3ENABLEDIAGSBRRELOAD:
2773 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_enable_diag_sbr_reload))
2774 ret = _ctl_enable_diag_sbr_reload(ioc, arg);
2775 break;
2776 default:
2777 dctlprintk(ioc,
2778 ioc_info(ioc, "unsupported ioctl opcode(0x%08x)\n",
2779 cmd));
2780 break;
2781 }
2782
2783 mutex_unlock(&ioc->ctl_cmds.mutex);
2784 out_unlock_pciaccess:
2785 mutex_unlock(&ioc->pci_access_mutex);
2786 return ret;
2787 }
2788
2789 /**
2790 * _ctl_ioctl - mpt3ctl main ioctl entry point (unlocked)
2791 * @file: (struct file)
2792 * @cmd: ioctl opcode
2793 * @arg: ?
2794 */
2795 static long
2796 _ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2797 {
2798 long ret;
2799
2800 /* pass MPI25_VERSION | MPI26_VERSION value,
2801 * to indicate that this ioctl cmd
2802 * came from mpt3ctl ioctl device.
2803 */
2804 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0,
2805 MPI25_VERSION | MPI26_VERSION);
2806 return ret;
2807 }
2808
2809 /**
2810 * _ctl_mpt2_ioctl - mpt2ctl main ioctl entry point (unlocked)
2811 * @file: (struct file)
2812 * @cmd: ioctl opcode
2813 * @arg: ?
2814 */
2815 static long
2816 _ctl_mpt2_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2817 {
2818 long ret;
2819
2820 /* pass MPI2_VERSION value, to indicate that this ioctl cmd
2821 * came from mpt2ctl ioctl device.
2822 */
2823 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0, MPI2_VERSION);
2824 return ret;
2825 }
2826 #ifdef CONFIG_COMPAT
2827 /**
2828 * _ctl_ioctl_compat - main ioctl entry point (compat)
2829 * @file: ?
2830 * @cmd: ?
2831 * @arg: ?
2832 *
2833 * This routine handles 32 bit applications in 64bit os.
2834 */
2835 static long
2836 _ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
2837 {
2838 long ret;
2839
2840 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1,
2841 MPI25_VERSION | MPI26_VERSION);
2842 return ret;
2843 }
2844
2845 /**
2846 * _ctl_mpt2_ioctl_compat - main ioctl entry point (compat)
2847 * @file: ?
2848 * @cmd: ?
2849 * @arg: ?
2850 *
2851 * This routine handles 32 bit applications in 64bit os.
2852 */
2853 static long
2854 _ctl_mpt2_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
2855 {
2856 long ret;
2857
2858 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1, MPI2_VERSION);
2859 return ret;
2860 }
2861 #endif
2862
2863 /* scsi host attributes */
2864 /**
2865 * version_fw_show - firmware version
2866 * @cdev: pointer to embedded class device
2867 * @attr: ?
2868 * @buf: the buffer returned
2869 *
2870 * A sysfs 'read-only' shost attribute.
2871 */
2872 static ssize_t
2873 version_fw_show(struct device *cdev, struct device_attribute *attr,
2874 char *buf)
2875 {
2876 struct Scsi_Host *shost = class_to_shost(cdev);
2877 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2878
2879 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2880 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
2881 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
2882 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
2883 ioc->facts.FWVersion.Word & 0x000000FF);
2884 }
2885 static DEVICE_ATTR_RO(version_fw);
2886
2887 /**
2888 * version_bios_show - bios version
2889 * @cdev: pointer to embedded class device
2890 * @attr: ?
2891 * @buf: the buffer returned
2892 *
2893 * A sysfs 'read-only' shost attribute.
2894 */
2895 static ssize_t
2896 version_bios_show(struct device *cdev, struct device_attribute *attr,
2897 char *buf)
2898 {
2899 struct Scsi_Host *shost = class_to_shost(cdev);
2900 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2901
2902 u32 version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
2903
2904 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2905 (version & 0xFF000000) >> 24,
2906 (version & 0x00FF0000) >> 16,
2907 (version & 0x0000FF00) >> 8,
2908 version & 0x000000FF);
2909 }
2910 static DEVICE_ATTR_RO(version_bios);
2911
2912 /**
2913 * version_mpi_show - MPI (message passing interface) version
2914 * @cdev: pointer to embedded class device
2915 * @attr: ?
2916 * @buf: the buffer returned
2917 *
2918 * A sysfs 'read-only' shost attribute.
2919 */
2920 static ssize_t
2921 version_mpi_show(struct device *cdev, struct device_attribute *attr,
2922 char *buf)
2923 {
2924 struct Scsi_Host *shost = class_to_shost(cdev);
2925 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2926
2927 return snprintf(buf, PAGE_SIZE, "%03x.%02x\n",
2928 ioc->facts.MsgVersion, ioc->facts.HeaderVersion >> 8);
2929 }
2930 static DEVICE_ATTR_RO(version_mpi);
2931
2932 /**
2933 * version_product_show - product name
2934 * @cdev: pointer to embedded class device
2935 * @attr: ?
2936 * @buf: the buffer returned
2937 *
2938 * A sysfs 'read-only' shost attribute.
2939 */
2940 static ssize_t
2941 version_product_show(struct device *cdev, struct device_attribute *attr,
2942 char *buf)
2943 {
2944 struct Scsi_Host *shost = class_to_shost(cdev);
2945 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2946
2947 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.ChipName);
2948 }
2949 static DEVICE_ATTR_RO(version_product);
2950
2951 /**
2952 * version_nvdata_persistent_show - ndvata persistent version
2953 * @cdev: pointer to embedded class device
2954 * @attr: ?
2955 * @buf: the buffer returned
2956 *
2957 * A sysfs 'read-only' shost attribute.
2958 */
2959 static ssize_t
2960 version_nvdata_persistent_show(struct device *cdev,
2961 struct device_attribute *attr, char *buf)
2962 {
2963 struct Scsi_Host *shost = class_to_shost(cdev);
2964 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2965
2966 return snprintf(buf, PAGE_SIZE, "%08xh\n",
2967 le32_to_cpu(ioc->iounit_pg0.NvdataVersionPersistent.Word));
2968 }
2969 static DEVICE_ATTR_RO(version_nvdata_persistent);
2970
2971 /**
2972 * version_nvdata_default_show - nvdata default version
2973 * @cdev: pointer to embedded class device
2974 * @attr: ?
2975 * @buf: the buffer returned
2976 *
2977 * A sysfs 'read-only' shost attribute.
2978 */
2979 static ssize_t
2980 version_nvdata_default_show(struct device *cdev, struct device_attribute
2981 *attr, char *buf)
2982 {
2983 struct Scsi_Host *shost = class_to_shost(cdev);
2984 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2985
2986 return snprintf(buf, PAGE_SIZE, "%08xh\n",
2987 le32_to_cpu(ioc->iounit_pg0.NvdataVersionDefault.Word));
2988 }
2989 static DEVICE_ATTR_RO(version_nvdata_default);
2990
2991 /**
2992 * board_name_show - board name
2993 * @cdev: pointer to embedded class device
2994 * @attr: ?
2995 * @buf: the buffer returned
2996 *
2997 * A sysfs 'read-only' shost attribute.
2998 */
2999 static ssize_t
3000 board_name_show(struct device *cdev, struct device_attribute *attr,
3001 char *buf)
3002 {
3003 struct Scsi_Host *shost = class_to_shost(cdev);
3004 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3005
3006 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardName);
3007 }
3008 static DEVICE_ATTR_RO(board_name);
3009
3010 /**
3011 * board_assembly_show - board assembly name
3012 * @cdev: pointer to embedded class device
3013 * @attr: ?
3014 * @buf: the buffer returned
3015 *
3016 * A sysfs 'read-only' shost attribute.
3017 */
3018 static ssize_t
3019 board_assembly_show(struct device *cdev, struct device_attribute *attr,
3020 char *buf)
3021 {
3022 struct Scsi_Host *shost = class_to_shost(cdev);
3023 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3024
3025 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardAssembly);
3026 }
3027 static DEVICE_ATTR_RO(board_assembly);
3028
3029 /**
3030 * board_tracer_show - board tracer number
3031 * @cdev: pointer to embedded class device
3032 * @attr: ?
3033 * @buf: the buffer returned
3034 *
3035 * A sysfs 'read-only' shost attribute.
3036 */
3037 static ssize_t
3038 board_tracer_show(struct device *cdev, struct device_attribute *attr,
3039 char *buf)
3040 {
3041 struct Scsi_Host *shost = class_to_shost(cdev);
3042 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3043
3044 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardTracerNumber);
3045 }
3046 static DEVICE_ATTR_RO(board_tracer);
3047
3048 /**
3049 * io_delay_show - io missing delay
3050 * @cdev: pointer to embedded class device
3051 * @attr: ?
3052 * @buf: the buffer returned
3053 *
3054 * This is for firmware implemention for deboucing device
3055 * removal events.
3056 *
3057 * A sysfs 'read-only' shost attribute.
3058 */
3059 static ssize_t
3060 io_delay_show(struct device *cdev, struct device_attribute *attr,
3061 char *buf)
3062 {
3063 struct Scsi_Host *shost = class_to_shost(cdev);
3064 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3065
3066 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
3067 }
3068 static DEVICE_ATTR_RO(io_delay);
3069
3070 /**
3071 * device_delay_show - device missing delay
3072 * @cdev: pointer to embedded class device
3073 * @attr: ?
3074 * @buf: the buffer returned
3075 *
3076 * This is for firmware implemention for deboucing device
3077 * removal events.
3078 *
3079 * A sysfs 'read-only' shost attribute.
3080 */
3081 static ssize_t
3082 device_delay_show(struct device *cdev, struct device_attribute *attr,
3083 char *buf)
3084 {
3085 struct Scsi_Host *shost = class_to_shost(cdev);
3086 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3087
3088 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
3089 }
3090 static DEVICE_ATTR_RO(device_delay);
3091
3092 /**
3093 * fw_queue_depth_show - global credits
3094 * @cdev: pointer to embedded class device
3095 * @attr: ?
3096 * @buf: the buffer returned
3097 *
3098 * This is firmware queue depth limit
3099 *
3100 * A sysfs 'read-only' shost attribute.
3101 */
3102 static ssize_t
3103 fw_queue_depth_show(struct device *cdev, struct device_attribute *attr,
3104 char *buf)
3105 {
3106 struct Scsi_Host *shost = class_to_shost(cdev);
3107 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3108
3109 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->facts.RequestCredit);
3110 }
3111 static DEVICE_ATTR_RO(fw_queue_depth);
3112
3113 /**
3114 * host_sas_address_show - sas address
3115 * @cdev: pointer to embedded class device
3116 * @attr: ?
3117 * @buf: the buffer returned
3118 *
3119 * This is the controller sas address
3120 *
3121 * A sysfs 'read-only' shost attribute.
3122 */
3123 static ssize_t
3124 host_sas_address_show(struct device *cdev, struct device_attribute *attr,
3125 char *buf)
3126
3127 {
3128 struct Scsi_Host *shost = class_to_shost(cdev);
3129 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3130
3131 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
3132 (unsigned long long)ioc->sas_hba.sas_address);
3133 }
3134 static DEVICE_ATTR_RO(host_sas_address);
3135
3136 /**
3137 * logging_level_show - logging level
3138 * @cdev: pointer to embedded class device
3139 * @attr: ?
3140 * @buf: the buffer returned
3141 *
3142 * A sysfs 'read/write' shost attribute.
3143 */
3144 static ssize_t
3145 logging_level_show(struct device *cdev, struct device_attribute *attr,
3146 char *buf)
3147 {
3148 struct Scsi_Host *shost = class_to_shost(cdev);
3149 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3150
3151 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->logging_level);
3152 }
3153 static ssize_t
3154 logging_level_store(struct device *cdev, struct device_attribute *attr,
3155 const char *buf, size_t count)
3156 {
3157 struct Scsi_Host *shost = class_to_shost(cdev);
3158 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3159 int val = 0;
3160
3161 if (sscanf(buf, "%x", &val) != 1)
3162 return -EINVAL;
3163
3164 ioc->logging_level = val;
3165 ioc_info(ioc, "logging_level=%08xh\n",
3166 ioc->logging_level);
3167 return strlen(buf);
3168 }
3169 static DEVICE_ATTR_RW(logging_level);
3170
3171 /**
3172 * fwfault_debug_show - show/store fwfault_debug
3173 * @cdev: pointer to embedded class device
3174 * @attr: ?
3175 * @buf: the buffer returned
3176 *
3177 * mpt3sas_fwfault_debug is command line option
3178 * A sysfs 'read/write' shost attribute.
3179 */
3180 static ssize_t
3181 fwfault_debug_show(struct device *cdev, struct device_attribute *attr,
3182 char *buf)
3183 {
3184 struct Scsi_Host *shost = class_to_shost(cdev);
3185 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3186
3187 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->fwfault_debug);
3188 }
3189 static ssize_t
3190 fwfault_debug_store(struct device *cdev, struct device_attribute *attr,
3191 const char *buf, size_t count)
3192 {
3193 struct Scsi_Host *shost = class_to_shost(cdev);
3194 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3195 int val = 0;
3196
3197 if (sscanf(buf, "%d", &val) != 1)
3198 return -EINVAL;
3199
3200 ioc->fwfault_debug = val;
3201 ioc_info(ioc, "fwfault_debug=%d\n",
3202 ioc->fwfault_debug);
3203 return strlen(buf);
3204 }
3205 static DEVICE_ATTR_RW(fwfault_debug);
3206
3207 /**
3208 * ioc_reset_count_show - ioc reset count
3209 * @cdev: pointer to embedded class device
3210 * @attr: ?
3211 * @buf: the buffer returned
3212 *
3213 * This is firmware queue depth limit
3214 *
3215 * A sysfs 'read-only' shost attribute.
3216 */
3217 static ssize_t
3218 ioc_reset_count_show(struct device *cdev, struct device_attribute *attr,
3219 char *buf)
3220 {
3221 struct Scsi_Host *shost = class_to_shost(cdev);
3222 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3223
3224 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->ioc_reset_count);
3225 }
3226 static DEVICE_ATTR_RO(ioc_reset_count);
3227
3228 /**
3229 * reply_queue_count_show - number of reply queues
3230 * @cdev: pointer to embedded class device
3231 * @attr: ?
3232 * @buf: the buffer returned
3233 *
3234 * This is number of reply queues
3235 *
3236 * A sysfs 'read-only' shost attribute.
3237 */
3238 static ssize_t
3239 reply_queue_count_show(struct device *cdev,
3240 struct device_attribute *attr, char *buf)
3241 {
3242 u8 reply_queue_count;
3243 struct Scsi_Host *shost = class_to_shost(cdev);
3244 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3245
3246 if ((ioc->facts.IOCCapabilities &
3247 MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX) && ioc->msix_enable)
3248 reply_queue_count = ioc->reply_queue_count;
3249 else
3250 reply_queue_count = 1;
3251
3252 return snprintf(buf, PAGE_SIZE, "%d\n", reply_queue_count);
3253 }
3254 static DEVICE_ATTR_RO(reply_queue_count);
3255
3256 /**
3257 * BRM_status_show - Backup Rail Monitor Status
3258 * @cdev: pointer to embedded class device
3259 * @attr: ?
3260 * @buf: the buffer returned
3261 *
3262 * This is number of reply queues
3263 *
3264 * A sysfs 'read-only' shost attribute.
3265 */
3266 static ssize_t
3267 BRM_status_show(struct device *cdev, struct device_attribute *attr,
3268 char *buf)
3269 {
3270 struct Scsi_Host *shost = class_to_shost(cdev);
3271 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3272 Mpi2IOUnitPage3_t io_unit_pg3;
3273 Mpi2ConfigReply_t mpi_reply;
3274 u16 backup_rail_monitor_status = 0;
3275 u16 ioc_status;
3276 int sz;
3277 ssize_t rc = 0;
3278
3279 if (!ioc->is_warpdrive) {
3280 ioc_err(ioc, "%s: BRM attribute is only for warpdrive\n",
3281 __func__);
3282 return 0;
3283 }
3284 /* pci_access_mutex lock acquired by sysfs show path */
3285 mutex_lock(&ioc->pci_access_mutex);
3286 if (ioc->pci_error_recovery || ioc->remove_host)
3287 goto out;
3288
3289 sz = sizeof(io_unit_pg3);
3290 memset(&io_unit_pg3, 0, sz);
3291
3292 if (mpt3sas_config_get_iounit_pg3(ioc, &mpi_reply, &io_unit_pg3, sz) !=
3293 0) {
3294 ioc_err(ioc, "%s: failed reading iounit_pg3\n",
3295 __func__);
3296 rc = -EINVAL;
3297 goto out;
3298 }
3299
3300 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
3301 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3302 ioc_err(ioc, "%s: iounit_pg3 failed with ioc_status(0x%04x)\n",
3303 __func__, ioc_status);
3304 rc = -EINVAL;
3305 goto out;
3306 }
3307
3308 if (io_unit_pg3.GPIOCount < 25) {
3309 ioc_err(ioc, "%s: iounit_pg3.GPIOCount less than 25 entries, detected (%d) entries\n",
3310 __func__, io_unit_pg3.GPIOCount);
3311 rc = -EINVAL;
3312 goto out;
3313 }
3314
3315 /* BRM status is in bit zero of GPIOVal[24] */
3316 backup_rail_monitor_status = le16_to_cpu(io_unit_pg3.GPIOVal[24]);
3317 rc = snprintf(buf, PAGE_SIZE, "%d\n", (backup_rail_monitor_status & 1));
3318
3319 out:
3320 mutex_unlock(&ioc->pci_access_mutex);
3321 return rc;
3322 }
3323 static DEVICE_ATTR_RO(BRM_status);
3324
3325 struct DIAG_BUFFER_START {
3326 __le32 Size;
3327 __le32 DiagVersion;
3328 u8 BufferType;
3329 u8 Reserved[3];
3330 __le32 Reserved1;
3331 __le32 Reserved2;
3332 __le32 Reserved3;
3333 };
3334
3335 /**
3336 * host_trace_buffer_size_show - host buffer size (trace only)
3337 * @cdev: pointer to embedded class device
3338 * @attr: ?
3339 * @buf: the buffer returned
3340 *
3341 * A sysfs 'read-only' shost attribute.
3342 */
3343 static ssize_t
3344 host_trace_buffer_size_show(struct device *cdev,
3345 struct device_attribute *attr, char *buf)
3346 {
3347 struct Scsi_Host *shost = class_to_shost(cdev);
3348 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3349 u32 size = 0;
3350 struct DIAG_BUFFER_START *request_data;
3351
3352 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
3353 ioc_err(ioc, "%s: host_trace_buffer is not registered\n",
3354 __func__);
3355 return 0;
3356 }
3357
3358 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3359 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
3360 ioc_err(ioc, "%s: host_trace_buffer is not registered\n",
3361 __func__);
3362 return 0;
3363 }
3364
3365 request_data = (struct DIAG_BUFFER_START *)
3366 ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE];
3367 if ((le32_to_cpu(request_data->DiagVersion) == 0x00000000 ||
3368 le32_to_cpu(request_data->DiagVersion) == 0x01000000 ||
3369 le32_to_cpu(request_data->DiagVersion) == 0x01010000) &&
3370 le32_to_cpu(request_data->Reserved3) == 0x4742444c)
3371 size = le32_to_cpu(request_data->Size);
3372
3373 ioc->ring_buffer_sz = size;
3374 return snprintf(buf, PAGE_SIZE, "%d\n", size);
3375 }
3376 static DEVICE_ATTR_RO(host_trace_buffer_size);
3377
3378 /**
3379 * host_trace_buffer_show - firmware ring buffer (trace only)
3380 * @cdev: pointer to embedded class device
3381 * @attr: ?
3382 * @buf: the buffer returned
3383 *
3384 * A sysfs 'read/write' shost attribute.
3385 *
3386 * You will only be able to read 4k bytes of ring buffer at a time.
3387 * In order to read beyond 4k bytes, you will have to write out the
3388 * offset to the same attribute, it will move the pointer.
3389 */
3390 static ssize_t
3391 host_trace_buffer_show(struct device *cdev, struct device_attribute *attr,
3392 char *buf)
3393 {
3394 struct Scsi_Host *shost = class_to_shost(cdev);
3395 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3396 void *request_data;
3397 u32 size;
3398
3399 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
3400 ioc_err(ioc, "%s: host_trace_buffer is not registered\n",
3401 __func__);
3402 return 0;
3403 }
3404
3405 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3406 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
3407 ioc_err(ioc, "%s: host_trace_buffer is not registered\n",
3408 __func__);
3409 return 0;
3410 }
3411
3412 if (ioc->ring_buffer_offset > ioc->ring_buffer_sz)
3413 return 0;
3414
3415 size = ioc->ring_buffer_sz - ioc->ring_buffer_offset;
3416 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size;
3417 request_data = ioc->diag_buffer[0] + ioc->ring_buffer_offset;
3418 memcpy(buf, request_data, size);
3419 return size;
3420 }
3421
3422 static ssize_t
3423 host_trace_buffer_store(struct device *cdev, struct device_attribute *attr,
3424 const char *buf, size_t count)
3425 {
3426 struct Scsi_Host *shost = class_to_shost(cdev);
3427 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3428 int val = 0;
3429
3430 if (sscanf(buf, "%d", &val) != 1)
3431 return -EINVAL;
3432
3433 ioc->ring_buffer_offset = val;
3434 return strlen(buf);
3435 }
3436 static DEVICE_ATTR_RW(host_trace_buffer);
3437
3438
3439 /*****************************************/
3440
3441 /**
3442 * host_trace_buffer_enable_show - firmware ring buffer (trace only)
3443 * @cdev: pointer to embedded class device
3444 * @attr: ?
3445 * @buf: the buffer returned
3446 *
3447 * A sysfs 'read/write' shost attribute.
3448 *
3449 * This is a mechnism to post/release host_trace_buffers
3450 */
3451 static ssize_t
3452 host_trace_buffer_enable_show(struct device *cdev,
3453 struct device_attribute *attr, char *buf)
3454 {
3455 struct Scsi_Host *shost = class_to_shost(cdev);
3456 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3457
3458 if ((!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) ||
3459 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3460 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0))
3461 return snprintf(buf, PAGE_SIZE, "off\n");
3462 else if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3463 MPT3_DIAG_BUFFER_IS_RELEASED))
3464 return snprintf(buf, PAGE_SIZE, "release\n");
3465 else
3466 return snprintf(buf, PAGE_SIZE, "post\n");
3467 }
3468
3469 static ssize_t
3470 host_trace_buffer_enable_store(struct device *cdev,
3471 struct device_attribute *attr, const char *buf, size_t count)
3472 {
3473 struct Scsi_Host *shost = class_to_shost(cdev);
3474 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3475 char str[10] = "";
3476 struct mpt3_diag_register diag_register;
3477 u8 issue_reset = 0;
3478
3479 /* don't allow post/release occurr while recovery is active */
3480 if (ioc->shost_recovery || ioc->remove_host ||
3481 ioc->pci_error_recovery || ioc->is_driver_loading)
3482 return -EBUSY;
3483
3484 if (sscanf(buf, "%9s", str) != 1)
3485 return -EINVAL;
3486
3487 if (!strcmp(str, "post")) {
3488 /* exit out if host buffers are already posted */
3489 if ((ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) &&
3490 (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3491 MPT3_DIAG_BUFFER_IS_REGISTERED) &&
3492 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3493 MPT3_DIAG_BUFFER_IS_RELEASED) == 0))
3494 goto out;
3495 memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
3496 ioc_info(ioc, "posting host trace buffers\n");
3497 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
3498
3499 if (ioc->manu_pg11.HostTraceBufferMaxSizeKB != 0 &&
3500 ioc->diag_buffer_sz[MPI2_DIAG_BUF_TYPE_TRACE] != 0) {
3501 /* post the same buffer allocated previously */
3502 diag_register.requested_buffer_size =
3503 ioc->diag_buffer_sz[MPI2_DIAG_BUF_TYPE_TRACE];
3504 } else {
3505 /*
3506 * Free the diag buffer memory which was previously
3507 * allocated by an application.
3508 */
3509 if ((ioc->diag_buffer_sz[MPI2_DIAG_BUF_TYPE_TRACE] != 0)
3510 &&
3511 (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3512 MPT3_DIAG_BUFFER_IS_APP_OWNED)) {
3513 dma_free_coherent(&ioc->pdev->dev,
3514 ioc->diag_buffer_sz[MPI2_DIAG_BUF_TYPE_TRACE],
3515 ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE],
3516 ioc->diag_buffer_dma[MPI2_DIAG_BUF_TYPE_TRACE]);
3517 ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE] =
3518 NULL;
3519 }
3520
3521 diag_register.requested_buffer_size = (1024 * 1024);
3522 }
3523
3524 diag_register.unique_id =
3525 (ioc->hba_mpi_version_belonged == MPI2_VERSION) ?
3526 (MPT2DIAGBUFFUNIQUEID):(MPT3DIAGBUFFUNIQUEID);
3527 ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] = 0;
3528 _ctl_diag_register_2(ioc, &diag_register);
3529 if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3530 MPT3_DIAG_BUFFER_IS_REGISTERED) {
3531 ioc_info(ioc,
3532 "Trace buffer %d KB allocated through sysfs\n",
3533 diag_register.requested_buffer_size>>10);
3534 if (ioc->hba_mpi_version_belonged != MPI2_VERSION)
3535 ioc->diag_buffer_status[
3536 MPI2_DIAG_BUF_TYPE_TRACE] |=
3537 MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED;
3538 }
3539 } else if (!strcmp(str, "release")) {
3540 /* exit out if host buffers are already released */
3541 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE])
3542 goto out;
3543 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3544 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0)
3545 goto out;
3546 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3547 MPT3_DIAG_BUFFER_IS_RELEASED))
3548 goto out;
3549 ioc_info(ioc, "releasing host trace buffer\n");
3550 ioc->htb_rel.buffer_rel_condition = MPT3_DIAG_BUFFER_REL_SYSFS;
3551 mpt3sas_send_diag_release(ioc, MPI2_DIAG_BUF_TYPE_TRACE,
3552 &issue_reset);
3553 }
3554
3555 out:
3556 return strlen(buf);
3557 }
3558 static DEVICE_ATTR_RW(host_trace_buffer_enable);
3559
3560 /*********** diagnostic trigger suppport *********************************/
3561
3562 /**
3563 * diag_trigger_master_show - show the diag_trigger_master attribute
3564 * @cdev: pointer to embedded class device
3565 * @attr: ?
3566 * @buf: the buffer returned
3567 *
3568 * A sysfs 'read/write' shost attribute.
3569 */
3570 static ssize_t
3571 diag_trigger_master_show(struct device *cdev,
3572 struct device_attribute *attr, char *buf)
3573
3574 {
3575 struct Scsi_Host *shost = class_to_shost(cdev);
3576 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3577 unsigned long flags;
3578 ssize_t rc;
3579
3580 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3581 rc = sizeof(struct SL_WH_MASTER_TRIGGER_T);
3582 memcpy(buf, &ioc->diag_trigger_master, rc);
3583 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3584 return rc;
3585 }
3586
3587 /**
3588 * diag_trigger_master_store - store the diag_trigger_master attribute
3589 * @cdev: pointer to embedded class device
3590 * @attr: ?
3591 * @buf: the buffer returned
3592 * @count: ?
3593 *
3594 * A sysfs 'read/write' shost attribute.
3595 */
3596 static ssize_t
3597 diag_trigger_master_store(struct device *cdev,
3598 struct device_attribute *attr, const char *buf, size_t count)
3599
3600 {
3601 struct Scsi_Host *shost = class_to_shost(cdev);
3602 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3603 struct SL_WH_MASTER_TRIGGER_T *master_tg;
3604 unsigned long flags;
3605 ssize_t rc;
3606 bool set = 1;
3607
3608 rc = min(sizeof(struct SL_WH_MASTER_TRIGGER_T), count);
3609
3610 if (ioc->supports_trigger_pages) {
3611 master_tg = kzalloc(sizeof(struct SL_WH_MASTER_TRIGGER_T),
3612 GFP_KERNEL);
3613 if (!master_tg)
3614 return -ENOMEM;
3615
3616 memcpy(master_tg, buf, rc);
3617 if (!master_tg->MasterData)
3618 set = 0;
3619 if (mpt3sas_config_update_driver_trigger_pg1(ioc, master_tg,
3620 set)) {
3621 kfree(master_tg);
3622 return -EFAULT;
3623 }
3624 kfree(master_tg);
3625 }
3626
3627 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3628 memset(&ioc->diag_trigger_master, 0,
3629 sizeof(struct SL_WH_MASTER_TRIGGER_T));
3630 memcpy(&ioc->diag_trigger_master, buf, rc);
3631 ioc->diag_trigger_master.MasterData |=
3632 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
3633 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3634 return rc;
3635 }
3636 static DEVICE_ATTR_RW(diag_trigger_master);
3637
3638
3639 /**
3640 * diag_trigger_event_show - show the diag_trigger_event attribute
3641 * @cdev: pointer to embedded class device
3642 * @attr: ?
3643 * @buf: the buffer returned
3644 *
3645 * A sysfs 'read/write' shost attribute.
3646 */
3647 static ssize_t
3648 diag_trigger_event_show(struct device *cdev,
3649 struct device_attribute *attr, char *buf)
3650 {
3651 struct Scsi_Host *shost = class_to_shost(cdev);
3652 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3653 unsigned long flags;
3654 ssize_t rc;
3655
3656 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3657 rc = sizeof(struct SL_WH_EVENT_TRIGGERS_T);
3658 memcpy(buf, &ioc->diag_trigger_event, rc);
3659 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3660 return rc;
3661 }
3662
3663 /**
3664 * diag_trigger_event_store - store the diag_trigger_event attribute
3665 * @cdev: pointer to embedded class device
3666 * @attr: ?
3667 * @buf: the buffer returned
3668 * @count: ?
3669 *
3670 * A sysfs 'read/write' shost attribute.
3671 */
3672 static ssize_t
3673 diag_trigger_event_store(struct device *cdev,
3674 struct device_attribute *attr, const char *buf, size_t count)
3675
3676 {
3677 struct Scsi_Host *shost = class_to_shost(cdev);
3678 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3679 struct SL_WH_EVENT_TRIGGERS_T *event_tg;
3680 unsigned long flags;
3681 ssize_t sz;
3682 bool set = 1;
3683
3684 sz = min(sizeof(struct SL_WH_EVENT_TRIGGERS_T), count);
3685 if (ioc->supports_trigger_pages) {
3686 event_tg = kzalloc(sizeof(struct SL_WH_EVENT_TRIGGERS_T),
3687 GFP_KERNEL);
3688 if (!event_tg)
3689 return -ENOMEM;
3690
3691 memcpy(event_tg, buf, sz);
3692 if (!event_tg->ValidEntries)
3693 set = 0;
3694 if (mpt3sas_config_update_driver_trigger_pg2(ioc, event_tg,
3695 set)) {
3696 kfree(event_tg);
3697 return -EFAULT;
3698 }
3699 kfree(event_tg);
3700 }
3701
3702 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3703
3704 memset(&ioc->diag_trigger_event, 0,
3705 sizeof(struct SL_WH_EVENT_TRIGGERS_T));
3706 memcpy(&ioc->diag_trigger_event, buf, sz);
3707 if (ioc->diag_trigger_event.ValidEntries > NUM_VALID_ENTRIES)
3708 ioc->diag_trigger_event.ValidEntries = NUM_VALID_ENTRIES;
3709 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3710 return sz;
3711 }
3712 static DEVICE_ATTR_RW(diag_trigger_event);
3713
3714
3715 /**
3716 * diag_trigger_scsi_show - show the diag_trigger_scsi attribute
3717 * @cdev: pointer to embedded class device
3718 * @attr: ?
3719 * @buf: the buffer returned
3720 *
3721 * A sysfs 'read/write' shost attribute.
3722 */
3723 static ssize_t
3724 diag_trigger_scsi_show(struct device *cdev,
3725 struct device_attribute *attr, char *buf)
3726 {
3727 struct Scsi_Host *shost = class_to_shost(cdev);
3728 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3729 unsigned long flags;
3730 ssize_t rc;
3731
3732 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3733 rc = sizeof(struct SL_WH_SCSI_TRIGGERS_T);
3734 memcpy(buf, &ioc->diag_trigger_scsi, rc);
3735 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3736 return rc;
3737 }
3738
3739 /**
3740 * diag_trigger_scsi_store - store the diag_trigger_scsi attribute
3741 * @cdev: pointer to embedded class device
3742 * @attr: ?
3743 * @buf: the buffer returned
3744 * @count: ?
3745 *
3746 * A sysfs 'read/write' shost attribute.
3747 */
3748 static ssize_t
3749 diag_trigger_scsi_store(struct device *cdev,
3750 struct device_attribute *attr, const char *buf, size_t count)
3751 {
3752 struct Scsi_Host *shost = class_to_shost(cdev);
3753 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3754 struct SL_WH_SCSI_TRIGGERS_T *scsi_tg;
3755 unsigned long flags;
3756 ssize_t sz;
3757 bool set = 1;
3758
3759 sz = min(sizeof(struct SL_WH_SCSI_TRIGGERS_T), count);
3760 if (ioc->supports_trigger_pages) {
3761 scsi_tg = kzalloc(sizeof(struct SL_WH_SCSI_TRIGGERS_T),
3762 GFP_KERNEL);
3763 if (!scsi_tg)
3764 return -ENOMEM;
3765
3766 memcpy(scsi_tg, buf, sz);
3767 if (!scsi_tg->ValidEntries)
3768 set = 0;
3769 if (mpt3sas_config_update_driver_trigger_pg3(ioc, scsi_tg,
3770 set)) {
3771 kfree(scsi_tg);
3772 return -EFAULT;
3773 }
3774 kfree(scsi_tg);
3775 }
3776
3777 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3778
3779 memset(&ioc->diag_trigger_scsi, 0, sizeof(ioc->diag_trigger_scsi));
3780 memcpy(&ioc->diag_trigger_scsi, buf, sz);
3781 if (ioc->diag_trigger_scsi.ValidEntries > NUM_VALID_ENTRIES)
3782 ioc->diag_trigger_scsi.ValidEntries = NUM_VALID_ENTRIES;
3783 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3784 return sz;
3785 }
3786 static DEVICE_ATTR_RW(diag_trigger_scsi);
3787
3788
3789 /**
3790 * diag_trigger_mpi_show - show the diag_trigger_mpi attribute
3791 * @cdev: pointer to embedded class device
3792 * @attr: ?
3793 * @buf: the buffer returned
3794 *
3795 * A sysfs 'read/write' shost attribute.
3796 */
3797 static ssize_t
3798 diag_trigger_mpi_show(struct device *cdev,
3799 struct device_attribute *attr, char *buf)
3800 {
3801 struct Scsi_Host *shost = class_to_shost(cdev);
3802 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3803 unsigned long flags;
3804 ssize_t rc;
3805
3806 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3807 rc = sizeof(struct SL_WH_MPI_TRIGGERS_T);
3808 memcpy(buf, &ioc->diag_trigger_mpi, rc);
3809 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3810 return rc;
3811 }
3812
3813 /**
3814 * diag_trigger_mpi_store - store the diag_trigger_mpi attribute
3815 * @cdev: pointer to embedded class device
3816 * @attr: ?
3817 * @buf: the buffer returned
3818 * @count: ?
3819 *
3820 * A sysfs 'read/write' shost attribute.
3821 */
3822 static ssize_t
3823 diag_trigger_mpi_store(struct device *cdev,
3824 struct device_attribute *attr, const char *buf, size_t count)
3825 {
3826 struct Scsi_Host *shost = class_to_shost(cdev);
3827 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3828 struct SL_WH_MPI_TRIGGERS_T *mpi_tg;
3829 unsigned long flags;
3830 ssize_t sz;
3831 bool set = 1;
3832
3833 sz = min(sizeof(struct SL_WH_MPI_TRIGGERS_T), count);
3834 if (ioc->supports_trigger_pages) {
3835 mpi_tg = kzalloc(sizeof(struct SL_WH_MPI_TRIGGERS_T),
3836 GFP_KERNEL);
3837 if (!mpi_tg)
3838 return -ENOMEM;
3839
3840 memcpy(mpi_tg, buf, sz);
3841 if (!mpi_tg->ValidEntries)
3842 set = 0;
3843 if (mpt3sas_config_update_driver_trigger_pg4(ioc, mpi_tg,
3844 set)) {
3845 kfree(mpi_tg);
3846 return -EFAULT;
3847 }
3848 kfree(mpi_tg);
3849 }
3850
3851 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3852 memset(&ioc->diag_trigger_mpi, 0,
3853 sizeof(ioc->diag_trigger_mpi));
3854 memcpy(&ioc->diag_trigger_mpi, buf, sz);
3855 if (ioc->diag_trigger_mpi.ValidEntries > NUM_VALID_ENTRIES)
3856 ioc->diag_trigger_mpi.ValidEntries = NUM_VALID_ENTRIES;
3857 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3858 return sz;
3859 }
3860
3861 static DEVICE_ATTR_RW(diag_trigger_mpi);
3862
3863 /*********** diagnostic trigger suppport *** END ****************************/
3864
3865 /*****************************************/
3866
3867 /**
3868 * drv_support_bitmap_show - driver supported feature bitmap
3869 * @cdev: pointer to embedded class device
3870 * @attr: unused
3871 * @buf: the buffer returned
3872 *
3873 * A sysfs 'read-only' shost attribute.
3874 */
3875 static ssize_t
3876 drv_support_bitmap_show(struct device *cdev,
3877 struct device_attribute *attr, char *buf)
3878 {
3879 struct Scsi_Host *shost = class_to_shost(cdev);
3880 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3881
3882 return snprintf(buf, PAGE_SIZE, "0x%08x\n", ioc->drv_support_bitmap);
3883 }
3884 static DEVICE_ATTR_RO(drv_support_bitmap);
3885
3886 /**
3887 * enable_sdev_max_qd_show - display whether sdev max qd is enabled/disabled
3888 * @cdev: pointer to embedded class device
3889 * @attr: unused
3890 * @buf: the buffer returned
3891 *
3892 * A sysfs read/write shost attribute. This attribute is used to set the
3893 * targets queue depth to HBA IO queue depth if this attribute is enabled.
3894 */
3895 static ssize_t
3896 enable_sdev_max_qd_show(struct device *cdev,
3897 struct device_attribute *attr, char *buf)
3898 {
3899 struct Scsi_Host *shost = class_to_shost(cdev);
3900 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3901
3902 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->enable_sdev_max_qd);
3903 }
3904
3905 /**
3906 * enable_sdev_max_qd_store - Enable/disable sdev max qd
3907 * @cdev: pointer to embedded class device
3908 * @attr: unused
3909 * @buf: the buffer returned
3910 * @count: unused
3911 *
3912 * A sysfs read/write shost attribute. This attribute is used to set the
3913 * targets queue depth to HBA IO queue depth if this attribute is enabled.
3914 * If this attribute is disabled then targets will have corresponding default
3915 * queue depth.
3916 */
3917 static ssize_t
3918 enable_sdev_max_qd_store(struct device *cdev,
3919 struct device_attribute *attr, const char *buf, size_t count)
3920 {
3921 struct Scsi_Host *shost = class_to_shost(cdev);
3922 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3923 struct MPT3SAS_DEVICE *sas_device_priv_data;
3924 struct MPT3SAS_TARGET *sas_target_priv_data;
3925 int val = 0;
3926 struct scsi_device *sdev;
3927 struct _raid_device *raid_device;
3928 int qdepth;
3929
3930 if (kstrtoint(buf, 0, &val) != 0)
3931 return -EINVAL;
3932
3933 switch (val) {
3934 case 0:
3935 ioc->enable_sdev_max_qd = 0;
3936 shost_for_each_device(sdev, ioc->shost) {
3937 sas_device_priv_data = sdev->hostdata;
3938 if (!sas_device_priv_data)
3939 continue;
3940 sas_target_priv_data = sas_device_priv_data->sas_target;
3941 if (!sas_target_priv_data)
3942 continue;
3943
3944 if (sas_target_priv_data->flags &
3945 MPT_TARGET_FLAGS_VOLUME) {
3946 raid_device =
3947 mpt3sas_raid_device_find_by_handle(ioc,
3948 sas_target_priv_data->handle);
3949
3950 switch (raid_device->volume_type) {
3951 case MPI2_RAID_VOL_TYPE_RAID0:
3952 if (raid_device->device_info &
3953 MPI2_SAS_DEVICE_INFO_SSP_TARGET)
3954 qdepth =
3955 MPT3SAS_SAS_QUEUE_DEPTH;
3956 else
3957 qdepth =
3958 MPT3SAS_SATA_QUEUE_DEPTH;
3959 break;
3960 case MPI2_RAID_VOL_TYPE_RAID1E:
3961 case MPI2_RAID_VOL_TYPE_RAID1:
3962 case MPI2_RAID_VOL_TYPE_RAID10:
3963 case MPI2_RAID_VOL_TYPE_UNKNOWN:
3964 default:
3965 qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
3966 }
3967 } else if (sas_target_priv_data->flags &
3968 MPT_TARGET_FLAGS_PCIE_DEVICE)
3969 qdepth = ioc->max_nvme_qd;
3970 else
3971 qdepth = (sas_target_priv_data->sas_dev->port_type > 1) ?
3972 ioc->max_wideport_qd : ioc->max_narrowport_qd;
3973
3974 mpt3sas_scsih_change_queue_depth(sdev, qdepth);
3975 }
3976 break;
3977 case 1:
3978 ioc->enable_sdev_max_qd = 1;
3979 shost_for_each_device(sdev, ioc->shost)
3980 mpt3sas_scsih_change_queue_depth(sdev,
3981 shost->can_queue);
3982 break;
3983 default:
3984 return -EINVAL;
3985 }
3986
3987 return strlen(buf);
3988 }
3989 static DEVICE_ATTR_RW(enable_sdev_max_qd);
3990
3991 static struct attribute *mpt3sas_host_attrs[] = {
3992 &dev_attr_version_fw.attr,
3993 &dev_attr_version_bios.attr,
3994 &dev_attr_version_mpi.attr,
3995 &dev_attr_version_product.attr,
3996 &dev_attr_version_nvdata_persistent.attr,
3997 &dev_attr_version_nvdata_default.attr,
3998 &dev_attr_board_name.attr,
3999 &dev_attr_board_assembly.attr,
4000 &dev_attr_board_tracer.attr,
4001 &dev_attr_io_delay.attr,
4002 &dev_attr_device_delay.attr,
4003 &dev_attr_logging_level.attr,
4004 &dev_attr_fwfault_debug.attr,
4005 &dev_attr_fw_queue_depth.attr,
4006 &dev_attr_host_sas_address.attr,
4007 &dev_attr_ioc_reset_count.attr,
4008 &dev_attr_host_trace_buffer_size.attr,
4009 &dev_attr_host_trace_buffer.attr,
4010 &dev_attr_host_trace_buffer_enable.attr,
4011 &dev_attr_reply_queue_count.attr,
4012 &dev_attr_diag_trigger_master.attr,
4013 &dev_attr_diag_trigger_event.attr,
4014 &dev_attr_diag_trigger_scsi.attr,
4015 &dev_attr_diag_trigger_mpi.attr,
4016 &dev_attr_drv_support_bitmap.attr,
4017 &dev_attr_BRM_status.attr,
4018 &dev_attr_enable_sdev_max_qd.attr,
4019 NULL,
4020 };
4021
4022 static const struct attribute_group mpt3sas_host_attr_group = {
4023 .attrs = mpt3sas_host_attrs
4024 };
4025
4026 const struct attribute_group *mpt3sas_host_groups[] = {
4027 &mpt3sas_host_attr_group,
4028 NULL
4029 };
4030
4031 /* device attributes */
4032
4033 /**
4034 * sas_address_show - sas address
4035 * @dev: pointer to embedded class device
4036 * @attr: ?
4037 * @buf: the buffer returned
4038 *
4039 * This is the sas address for the target
4040 *
4041 * A sysfs 'read-only' shost attribute.
4042 */
4043 static ssize_t
4044 sas_address_show(struct device *dev, struct device_attribute *attr,
4045 char *buf)
4046 {
4047 struct scsi_device *sdev = to_scsi_device(dev);
4048 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
4049
4050 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
4051 (unsigned long long)sas_device_priv_data->sas_target->sas_address);
4052 }
4053 static DEVICE_ATTR_RO(sas_address);
4054
4055 /**
4056 * sas_device_handle_show - device handle
4057 * @dev: pointer to embedded class device
4058 * @attr: ?
4059 * @buf: the buffer returned
4060 *
4061 * This is the firmware assigned device handle
4062 *
4063 * A sysfs 'read-only' shost attribute.
4064 */
4065 static ssize_t
4066 sas_device_handle_show(struct device *dev, struct device_attribute *attr,
4067 char *buf)
4068 {
4069 struct scsi_device *sdev = to_scsi_device(dev);
4070 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
4071
4072 return snprintf(buf, PAGE_SIZE, "0x%04x\n",
4073 sas_device_priv_data->sas_target->handle);
4074 }
4075 static DEVICE_ATTR_RO(sas_device_handle);
4076
4077 /**
4078 * sas_ncq_prio_supported_show - Indicate if device supports NCQ priority
4079 * @dev: pointer to embedded device
4080 * @attr: sas_ncq_prio_supported attribute descriptor
4081 * @buf: the buffer returned
4082 *
4083 * A sysfs 'read-only' sdev attribute, only works with SATA
4084 */
4085 static ssize_t
4086 sas_ncq_prio_supported_show(struct device *dev,
4087 struct device_attribute *attr, char *buf)
4088 {
4089 struct scsi_device *sdev = to_scsi_device(dev);
4090
4091 return sysfs_emit(buf, "%d\n", sas_ata_ncq_prio_supported(sdev));
4092 }
4093 static DEVICE_ATTR_RO(sas_ncq_prio_supported);
4094
4095 /**
4096 * sas_ncq_prio_enable_show - send prioritized io commands to device
4097 * @dev: pointer to embedded device
4098 * @attr: ?
4099 * @buf: the buffer returned
4100 *
4101 * A sysfs 'read/write' sdev attribute, only works with SATA
4102 */
4103 static ssize_t
4104 sas_ncq_prio_enable_show(struct device *dev,
4105 struct device_attribute *attr, char *buf)
4106 {
4107 struct scsi_device *sdev = to_scsi_device(dev);
4108 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
4109
4110 return snprintf(buf, PAGE_SIZE, "%d\n",
4111 sas_device_priv_data->ncq_prio_enable);
4112 }
4113
4114 static ssize_t
4115 sas_ncq_prio_enable_store(struct device *dev,
4116 struct device_attribute *attr,
4117 const char *buf, size_t count)
4118 {
4119 struct scsi_device *sdev = to_scsi_device(dev);
4120 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
4121 bool ncq_prio_enable = 0;
4122
4123 if (kstrtobool(buf, &ncq_prio_enable))
4124 return -EINVAL;
4125
4126 if (!sas_ata_ncq_prio_supported(sdev))
4127 return -EINVAL;
4128
4129 sas_device_priv_data->ncq_prio_enable = ncq_prio_enable;
4130 return strlen(buf);
4131 }
4132 static DEVICE_ATTR_RW(sas_ncq_prio_enable);
4133
4134 static struct attribute *mpt3sas_dev_attrs[] = {
4135 &dev_attr_sas_address.attr,
4136 &dev_attr_sas_device_handle.attr,
4137 &dev_attr_sas_ncq_prio_supported.attr,
4138 &dev_attr_sas_ncq_prio_enable.attr,
4139 NULL,
4140 };
4141
4142 static const struct attribute_group mpt3sas_dev_attr_group = {
4143 .attrs = mpt3sas_dev_attrs
4144 };
4145
4146 const struct attribute_group *mpt3sas_dev_groups[] = {
4147 &mpt3sas_dev_attr_group,
4148 NULL
4149 };
4150
4151 /* file operations table for mpt3ctl device */
4152 static const struct file_operations ctl_fops = {
4153 .owner = THIS_MODULE,
4154 .unlocked_ioctl = _ctl_ioctl,
4155 .poll = _ctl_poll,
4156 .fasync = _ctl_fasync,
4157 #ifdef CONFIG_COMPAT
4158 .compat_ioctl = _ctl_ioctl_compat,
4159 #endif
4160 };
4161
4162 /* file operations table for mpt2ctl device */
4163 static const struct file_operations ctl_gen2_fops = {
4164 .owner = THIS_MODULE,
4165 .unlocked_ioctl = _ctl_mpt2_ioctl,
4166 .poll = _ctl_poll,
4167 .fasync = _ctl_fasync,
4168 #ifdef CONFIG_COMPAT
4169 .compat_ioctl = _ctl_mpt2_ioctl_compat,
4170 #endif
4171 };
4172
4173 static struct miscdevice ctl_dev = {
4174 .minor = MPT3SAS_MINOR,
4175 .name = MPT3SAS_DEV_NAME,
4176 .fops = &ctl_fops,
4177 };
4178
4179 static struct miscdevice gen2_ctl_dev = {
4180 .minor = MPT2SAS_MINOR,
4181 .name = MPT2SAS_DEV_NAME,
4182 .fops = &ctl_gen2_fops,
4183 };
4184
4185 /**
4186 * mpt3sas_ctl_init - main entry point for ctl.
4187 * @hbas_to_enumerate: ?
4188 */
4189 void
4190 mpt3sas_ctl_init(ushort hbas_to_enumerate)
4191 {
4192 async_queue = NULL;
4193
4194 /* Don't register mpt3ctl ioctl device if
4195 * hbas_to_enumarate is one.
4196 */
4197 if (hbas_to_enumerate != 1)
4198 if (misc_register(&ctl_dev) < 0)
4199 pr_err("%s can't register misc device [minor=%d]\n",
4200 MPT3SAS_DRIVER_NAME, MPT3SAS_MINOR);
4201
4202 /* Don't register mpt3ctl ioctl device if
4203 * hbas_to_enumarate is two.
4204 */
4205 if (hbas_to_enumerate != 2)
4206 if (misc_register(&gen2_ctl_dev) < 0)
4207 pr_err("%s can't register misc device [minor=%d]\n",
4208 MPT2SAS_DRIVER_NAME, MPT2SAS_MINOR);
4209
4210 init_waitqueue_head(&ctl_poll_wait);
4211 }
4212
4213 /**
4214 * mpt3sas_ctl_release - release dma for ctl
4215 * @ioc: per adapter object
4216 */
4217 void
4218 mpt3sas_ctl_release(struct MPT3SAS_ADAPTER *ioc)
4219 {
4220 int i;
4221
4222 /* free memory associated to diag buffers */
4223 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
4224 if (!ioc->diag_buffer[i])
4225 continue;
4226 dma_free_coherent(&ioc->pdev->dev,
4227 ioc->diag_buffer_sz[i],
4228 ioc->diag_buffer[i],
4229 ioc->diag_buffer_dma[i]);
4230 ioc->diag_buffer[i] = NULL;
4231 ioc->diag_buffer_status[i] = 0;
4232 }
4233
4234 kfree(ioc->event_log);
4235 }
4236
4237 /**
4238 * mpt3sas_ctl_exit - exit point for ctl
4239 * @hbas_to_enumerate: ?
4240 */
4241 void
4242 mpt3sas_ctl_exit(ushort hbas_to_enumerate)
4243 {
4244
4245 if (hbas_to_enumerate != 1)
4246 misc_deregister(&ctl_dev);
4247 if (hbas_to_enumerate != 2)
4248 misc_deregister(&gen2_ctl_dev);
4249 }
Kernel DRM miscellaneous fixes and cross-tree changes