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the rest of drivers/*: annotate ->poll() instances
[linux-2.6-block.git] / drivers / scsi / mpt3sas / mpt3sas_ctl.c
CommitLineData
f92363d1
SR		 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
a4ffce0d 6 * Copyright (C) 2012-2014 LSI Corporation
a03bd153
SR		 7 * Copyright (C) 2013-2014 Avago Technologies
8 * (mailto: MPT-FusionLinux.pdl@avagotech.com)
f92363d1
SR		 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
f92363d1
SR		 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
64static struct fasync_struct *async_queue;
65static 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 */
76enum block_state {
77 NON_BLOCKING,
78 BLOCKING,
79};
80
f92363d1
SR		 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 */
92static void
93_ctl_display_some_debug(struct MPT3SAS_ADAPTER *ioc, u16 smid,
94 char *calling_function_name, MPI2DefaultReply_t *mpi_reply)
95{
96 Mpi2ConfigRequest_t *mpi_request;
97 char *desc = NULL;
98
99 if (!(ioc->logging_level & MPT_DEBUG_IOCTL))
100 return;
101
102 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
103 switch (mpi_request->Function) {
104 case MPI2_FUNCTION_SCSI_IO_REQUEST:
105 {
106 Mpi2SCSIIORequest_t *scsi_request =
107 (Mpi2SCSIIORequest_t *)mpi_request;
108
109 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
110 "scsi_io, cmd(0x%02x), cdb_len(%d)",
111 scsi_request->CDB.CDB32[0],
112 le16_to_cpu(scsi_request->IoFlags) & 0xF);
113 desc = ioc->tmp_string;
114 break;
115 }
116 case MPI2_FUNCTION_SCSI_TASK_MGMT:
117 desc = "task_mgmt";
118 break;
119 case MPI2_FUNCTION_IOC_INIT:
120 desc = "ioc_init";
121 break;
122 case MPI2_FUNCTION_IOC_FACTS:
123 desc = "ioc_facts";
124 break;
125 case MPI2_FUNCTION_CONFIG:
126 {
127 Mpi2ConfigRequest_t *config_request =
128 (Mpi2ConfigRequest_t *)mpi_request;
129
130 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
131 "config, type(0x%02x), ext_type(0x%02x), number(%d)",
132 (config_request->Header.PageType &
133 MPI2_CONFIG_PAGETYPE_MASK), config_request->ExtPageType,
134 config_request->Header.PageNumber);
135 desc = ioc->tmp_string;
136 break;
137 }
138 case MPI2_FUNCTION_PORT_FACTS:
139 desc = "port_facts";
140 break;
141 case MPI2_FUNCTION_PORT_ENABLE:
142 desc = "port_enable";
143 break;
144 case MPI2_FUNCTION_EVENT_NOTIFICATION:
145 desc = "event_notification";
146 break;
147 case MPI2_FUNCTION_FW_DOWNLOAD:
148 desc = "fw_download";
149 break;
150 case MPI2_FUNCTION_FW_UPLOAD:
151 desc = "fw_upload";
152 break;
153 case MPI2_FUNCTION_RAID_ACTION:
154 desc = "raid_action";
155 break;
156 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
157 {
158 Mpi2SCSIIORequest_t *scsi_request =
159 (Mpi2SCSIIORequest_t *)mpi_request;
160
161 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
162 "raid_pass, cmd(0x%02x), cdb_len(%d)",
163 scsi_request->CDB.CDB32[0],
164 le16_to_cpu(scsi_request->IoFlags) & 0xF);
165 desc = ioc->tmp_string;
166 break;
167 }
168 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
169 desc = "sas_iounit_cntl";
170 break;
171 case MPI2_FUNCTION_SATA_PASSTHROUGH:
172 desc = "sata_pass";
173 break;
174 case MPI2_FUNCTION_DIAG_BUFFER_POST:
175 desc = "diag_buffer_post";
176 break;
177 case MPI2_FUNCTION_DIAG_RELEASE:
178 desc = "diag_release";
179 break;
180 case MPI2_FUNCTION_SMP_PASSTHROUGH:
181 desc = "smp_passthrough";
182 break;
183 }
184
185 if (!desc)
186 return;
187
188 pr_info(MPT3SAS_FMT "%s: %s, smid(%d)\n",
189 ioc->name, calling_function_name, desc, smid);
190
191 if (!mpi_reply)
192 return;
193
194 if (mpi_reply->IOCStatus || mpi_reply->IOCLogInfo)
195 pr_info(MPT3SAS_FMT
196 "\tiocstatus(0x%04x), loginfo(0x%08x)\n",
197 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
198 le32_to_cpu(mpi_reply->IOCLogInfo));
199
200 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
201 mpi_request->Function ==
202 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
203 Mpi2SCSIIOReply_t *scsi_reply =
204 (Mpi2SCSIIOReply_t *)mpi_reply;
205 struct _sas_device *sas_device = NULL;
45aa6a1a 206 struct _pcie_device *pcie_device = NULL;
f92363d1 207
45aa6a1a 208 sas_device = mpt3sas_get_sdev_by_handle(ioc,
f92363d1
SR		 209 le16_to_cpu(scsi_reply->DevHandle));
210 if (sas_device) {
211 pr_warn(MPT3SAS_FMT "\tsas_address(0x%016llx), phy(%d)\n",
212 ioc->name, (unsigned long long)
213 sas_device->sas_address, sas_device->phy);
214 pr_warn(MPT3SAS_FMT
215 "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
216 ioc->name, (unsigned long long)
217 sas_device->enclosure_logical_id, sas_device->slot);
45aa6a1a
SPS		 218 sas_device_put(sas_device);
219 }
220 if (!sas_device) {
221 pcie_device = mpt3sas_get_pdev_by_handle(ioc,
222 le16_to_cpu(scsi_reply->DevHandle));
223 if (pcie_device) {
224 pr_warn(MPT3SAS_FMT
225 "\tWWID(0x%016llx), port(%d)\n", ioc->name,
226 (unsigned long long)pcie_device->wwid,
227 pcie_device->port_num);
228 if (pcie_device->enclosure_handle != 0)
229 pr_warn(MPT3SAS_FMT
230 "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
231 ioc->name, (unsigned long long)
232 pcie_device->enclosure_logical_id,
233 pcie_device->slot);
234 pcie_device_put(pcie_device);
235 }
f92363d1 236 }
f92363d1
SR		 237 if (scsi_reply->SCSIState || scsi_reply->SCSIStatus)
238 pr_info(MPT3SAS_FMT
239 "\tscsi_state(0x%02x), scsi_status"
240 "(0x%02x)\n", ioc->name,
241 scsi_reply->SCSIState,
242 scsi_reply->SCSIStatus);
243 }
244}
245
f92363d1
SR		 246/**
247 * mpt3sas_ctl_done - ctl module completion routine
248 * @ioc: per adapter object
249 * @smid: system request message index
250 * @msix_index: MSIX table index supplied by the OS
251 * @reply: reply message frame(lower 32bit addr)
252 * Context: none.
253 *
254 * The callback handler when using ioc->ctl_cb_idx.
255 *
256 * Return 1 meaning mf should be freed from _base_interrupt
257 * 0 means the mf is freed from this function.
258 */
259u8
260mpt3sas_ctl_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
261 u32 reply)
262{
263 MPI2DefaultReply_t *mpi_reply;
264 Mpi2SCSIIOReply_t *scsiio_reply;
aff39e61 265 Mpi26NVMeEncapsulatedErrorReply_t *nvme_error_reply;
f92363d1
SR		 266 const void *sense_data;
267 u32 sz;
268
269 if (ioc->ctl_cmds.status == MPT3_CMD_NOT_USED)
270 return 1;
271 if (ioc->ctl_cmds.smid != smid)
272 return 1;
273 ioc->ctl_cmds.status |= MPT3_CMD_COMPLETE;
274 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
275 if (mpi_reply) {
276 memcpy(ioc->ctl_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
277 ioc->ctl_cmds.status |= MPT3_CMD_REPLY_VALID;
278 /* get sense data */
279 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
280 mpi_reply->Function ==
281 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
282 scsiio_reply = (Mpi2SCSIIOReply_t *)mpi_reply;
283 if (scsiio_reply->SCSIState &
284 MPI2_SCSI_STATE_AUTOSENSE_VALID) {
285 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
286 le32_to_cpu(scsiio_reply->SenseCount));
287 sense_data = mpt3sas_base_get_sense_buffer(ioc,
288 smid);
289 memcpy(ioc->ctl_cmds.sense, sense_data, sz);
290 }
291 }
aff39e61
SPS		 292 /*
293 * Get Error Response data for NVMe device. The ctl_cmds.sense
294 * buffer is used to store the Error Response data.
295 */
296 if (mpi_reply->Function == MPI2_FUNCTION_NVME_ENCAPSULATED) {
297 nvme_error_reply =
298 (Mpi26NVMeEncapsulatedErrorReply_t *)mpi_reply;
299 sz = min_t(u32, NVME_ERROR_RESPONSE_SIZE,
300 le32_to_cpu(nvme_error_reply->ErrorResponseCount));
301 sense_data = mpt3sas_base_get_sense_buffer(ioc, smid);
302 memcpy(ioc->ctl_cmds.sense, sense_data, sz);
303 }
f92363d1 304 }
016d5c35 305
f92363d1 306 _ctl_display_some_debug(ioc, smid, "ctl_done", mpi_reply);
f92363d1
SR		 307 ioc->ctl_cmds.status &= ~MPT3_CMD_PENDING;
308 complete(&ioc->ctl_cmds.done);
309 return 1;
310}
311
312/**
313 * _ctl_check_event_type - determines when an event needs logging
314 * @ioc: per adapter object
315 * @event: firmware event
316 *
317 * The bitmask in ioc->event_type[] indicates which events should be
318 * be saved in the driver event_log. This bitmask is set by application.
319 *
320 * Returns 1 when event should be captured, or zero means no match.
321 */
322static int
323_ctl_check_event_type(struct MPT3SAS_ADAPTER *ioc, u16 event)
324{
325 u16 i;
326 u32 desired_event;
327
328 if (event >= 128 || !event || !ioc->event_log)
329 return 0;
330
331 desired_event = (1 << (event % 32));
332 if (!desired_event)
333 desired_event = 1;
334 i = event / 32;
335 return desired_event & ioc->event_type[i];
336}
337
338/**
339 * mpt3sas_ctl_add_to_event_log - add event
340 * @ioc: per adapter object
341 * @mpi_reply: reply message frame
342 *
343 * Return nothing.
344 */
345void
346mpt3sas_ctl_add_to_event_log(struct MPT3SAS_ADAPTER *ioc,
347 Mpi2EventNotificationReply_t *mpi_reply)
348{
349 struct MPT3_IOCTL_EVENTS *event_log;
350 u16 event;
351 int i;
352 u32 sz, event_data_sz;
353 u8 send_aen = 0;
354
355 if (!ioc->event_log)
356 return;
357
358 event = le16_to_cpu(mpi_reply->Event);
359
360 if (_ctl_check_event_type(ioc, event)) {
361
362 /* insert entry into circular event_log */
363 i = ioc->event_context % MPT3SAS_CTL_EVENT_LOG_SIZE;
364 event_log = ioc->event_log;
365 event_log[i].event = event;
366 event_log[i].context = ioc->event_context++;
367
368 event_data_sz = le16_to_cpu(mpi_reply->EventDataLength)*4;
369 sz = min_t(u32, event_data_sz, MPT3_EVENT_DATA_SIZE);
370 memset(event_log[i].data, 0, MPT3_EVENT_DATA_SIZE);
371 memcpy(event_log[i].data, mpi_reply->EventData, sz);
372 send_aen = 1;
373 }
374
375 /* This aen_event_read_flag flag is set until the
376 * application has read the event log.
377 * For MPI2_EVENT_LOG_ENTRY_ADDED, we always notify.
378 */
379 if (event == MPI2_EVENT_LOG_ENTRY_ADDED ||
380 (send_aen && !ioc->aen_event_read_flag)) {
381 ioc->aen_event_read_flag = 1;
382 wake_up_interruptible(&ctl_poll_wait);
383 if (async_queue)
384 kill_fasync(&async_queue, SIGIO, POLL_IN);
385 }
386}
387
388/**
389 * mpt3sas_ctl_event_callback - firmware event handler (called at ISR time)
390 * @ioc: per adapter object
391 * @msix_index: MSIX table index supplied by the OS
392 * @reply: reply message frame(lower 32bit addr)
393 * Context: interrupt.
394 *
395 * This function merely adds a new work task into ioc->firmware_event_thread.
396 * The tasks are worked from _firmware_event_work in user context.
397 *
398 * Return 1 meaning mf should be freed from _base_interrupt
399 * 0 means the mf is freed from this function.
400 */
401u8
402mpt3sas_ctl_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index,
403 u32 reply)
404{
405 Mpi2EventNotificationReply_t *mpi_reply;
406
407 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
869817f9
SS		 408 if (mpi_reply)
409 mpt3sas_ctl_add_to_event_log(ioc, mpi_reply);
f92363d1
SR		 410 return 1;
411}
412
413/**
414 * _ctl_verify_adapter - validates ioc_number passed from application
415 * @ioc: per adapter object
416 * @iocpp: The ioc pointer is returned in this.
c84b06a4 417 * @mpi_version: will be MPI2_VERSION for mpt2ctl ioctl device &
b130b0d5 418 * MPI25_VERSION | MPI26_VERSION for mpt3ctl ioctl device.
f92363d1
SR		 419 *
420 * Return (-1) means error, else ioc_number.
421 */
422static int
c84b06a4
SR		 423_ctl_verify_adapter(int ioc_number, struct MPT3SAS_ADAPTER **iocpp,
424 int mpi_version)
f92363d1
SR		 425{
426 struct MPT3SAS_ADAPTER *ioc;
b130b0d5 427 int version = 0;
08c4d550
SR		 428 /* global ioc lock to protect controller on list operations */
429 spin_lock(&gioc_lock);
f92363d1
SR		 430 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
431 if (ioc->id != ioc_number)
432 continue;
c84b06a4
SR		 433 /* Check whether this ioctl command is from right
434 * ioctl device or not, if not continue the search.
435 */
b130b0d5
SS		 436 version = ioc->hba_mpi_version_belonged;
437 /* MPI25_VERSION and MPI26_VERSION uses same ioctl
438 * device.
439 */
440 if (mpi_version == (MPI25_VERSION | MPI26_VERSION)) {
441 if ((version == MPI25_VERSION) ||
442 (version == MPI26_VERSION))
443 goto out;
444 else
445 continue;
446 } else {
447 if (version != mpi_version)
448 continue;
449 }
450out:
08c4d550 451 spin_unlock(&gioc_lock);
f92363d1
SR		 452 *iocpp = ioc;
453 return ioc_number;
454 }
08c4d550 455 spin_unlock(&gioc_lock);
f92363d1
SR		 456 *iocpp = NULL;
457 return -1;
458}
459
460/**
461 * mpt3sas_ctl_reset_handler - reset callback handler (for ctl)
462 * @ioc: per adapter object
463 * @reset_phase: phase
464 *
465 * The handler for doing any required cleanup or initialization.
466 *
467 * The reset phase can be MPT3_IOC_PRE_RESET, MPT3_IOC_AFTER_RESET,
468 * MPT3_IOC_DONE_RESET
469 */
470void
471mpt3sas_ctl_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase)
472{
473 int i;
474 u8 issue_reset;
475
476 switch (reset_phase) {
477 case MPT3_IOC_PRE_RESET:
478 dtmprintk(ioc, pr_info(MPT3SAS_FMT
479 "%s: MPT3_IOC_PRE_RESET\n", ioc->name, __func__));
480 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
481 if (!(ioc->diag_buffer_status[i] &
482 MPT3_DIAG_BUFFER_IS_REGISTERED))
483 continue;
484 if ((ioc->diag_buffer_status[i] &
485 MPT3_DIAG_BUFFER_IS_RELEASED))
486 continue;
487 mpt3sas_send_diag_release(ioc, i, &issue_reset);
488 }
489 break;
490 case MPT3_IOC_AFTER_RESET:
491 dtmprintk(ioc, pr_info(MPT3SAS_FMT
492 "%s: MPT3_IOC_AFTER_RESET\n", ioc->name, __func__));
493 if (ioc->ctl_cmds.status & MPT3_CMD_PENDING) {
494 ioc->ctl_cmds.status |= MPT3_CMD_RESET;
495 mpt3sas_base_free_smid(ioc, ioc->ctl_cmds.smid);
496 complete(&ioc->ctl_cmds.done);
497 }
498 break;
499 case MPT3_IOC_DONE_RESET:
500 dtmprintk(ioc, pr_info(MPT3SAS_FMT
501 "%s: MPT3_IOC_DONE_RESET\n", ioc->name, __func__));
502
503 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
504 if (!(ioc->diag_buffer_status[i] &
505 MPT3_DIAG_BUFFER_IS_REGISTERED))
506 continue;
507 if ((ioc->diag_buffer_status[i] &
508 MPT3_DIAG_BUFFER_IS_RELEASED))
509 continue;
510 ioc->diag_buffer_status[i] |=
511 MPT3_DIAG_BUFFER_IS_DIAG_RESET;
512 }
513 break;
514 }
515}
516
517/**
c84b06a4 518 * _ctl_fasync -
f92363d1
SR		 519 * @fd -
520 * @filep -
521 * @mode -
522 *
523 * Called when application request fasyn callback handler.
524 */
8bbb1cf6 525static int
c84b06a4 526_ctl_fasync(int fd, struct file *filep, int mode)
f92363d1
SR		 527{
528 return fasync_helper(fd, filep, mode, &async_queue);
529}
530
f92363d1 531/**
c84b06a4 532 * _ctl_poll -
f92363d1
SR		 533 * @file -
534 * @wait -
535 *
536 */
afc9a42b 537static __poll_t
c84b06a4 538_ctl_poll(struct file *filep, poll_table *wait)
f92363d1
SR		 539{
540 struct MPT3SAS_ADAPTER *ioc;
541
542 poll_wait(filep, &ctl_poll_wait, wait);
543
08c4d550
SR		 544 /* global ioc lock to protect controller on list operations */
545 spin_lock(&gioc_lock);
f92363d1 546 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
08c4d550
SR		 547 if (ioc->aen_event_read_flag) {
548 spin_unlock(&gioc_lock);
f92363d1 549 return POLLIN | POLLRDNORM;
08c4d550 550 }
f92363d1 551 }
08c4d550 552 spin_unlock(&gioc_lock);
f92363d1
SR		 553 return 0;
554}
555
556/**
557 * _ctl_set_task_mid - assign an active smid to tm request
558 * @ioc: per adapter object
559 * @karg - (struct mpt3_ioctl_command)
560 * @tm_request - pointer to mf from user space
561 *
562 * Returns 0 when an smid if found, else fail.
563 * during failure, the reply frame is filled.
564 */
565static int
566_ctl_set_task_mid(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command *karg,
567 Mpi2SCSITaskManagementRequest_t *tm_request)
568{
569 u8 found = 0;
570 u16 i;
571 u16 handle;
572 struct scsi_cmnd *scmd;
573 struct MPT3SAS_DEVICE *priv_data;
574 unsigned long flags;
575 Mpi2SCSITaskManagementReply_t *tm_reply;
576 u32 sz;
577 u32 lun;
578 char *desc = NULL;
579
580 if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
581 desc = "abort_task";
582 else if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK)
583 desc = "query_task";
584 else
585 return 0;
586
587 lun = scsilun_to_int((struct scsi_lun *)tm_request->LUN);
588
589 handle = le16_to_cpu(tm_request->DevHandle);
590 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
591 for (i = ioc->scsiio_depth; i && !found; i--) {
592 scmd = ioc->scsi_lookup[i - 1].scmd;
593 if (scmd == NULL || scmd->device == NULL ||
594 scmd->device->hostdata == NULL)
595 continue;
596 if (lun != scmd->device->lun)
597 continue;
598 priv_data = scmd->device->hostdata;
599 if (priv_data->sas_target == NULL)
600 continue;
601 if (priv_data->sas_target->handle != handle)
602 continue;
603 tm_request->TaskMID = cpu_to_le16(ioc->scsi_lookup[i - 1].smid);
604 found = 1;
605 }
606 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
607
608 if (!found) {
609 dctlprintk(ioc, pr_info(MPT3SAS_FMT
610 "%s: handle(0x%04x), lun(%d), no active mid!!\n",
611 ioc->name,
612 desc, le16_to_cpu(tm_request->DevHandle), lun));
613 tm_reply = ioc->ctl_cmds.reply;
614 tm_reply->DevHandle = tm_request->DevHandle;
615 tm_reply->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
616 tm_reply->TaskType = tm_request->TaskType;
617 tm_reply->MsgLength = sizeof(Mpi2SCSITaskManagementReply_t)/4;
618 tm_reply->VP_ID = tm_request->VP_ID;
619 tm_reply->VF_ID = tm_request->VF_ID;
620 sz = min_t(u32, karg->max_reply_bytes, ioc->reply_sz);
621 if (copy_to_user(karg->reply_frame_buf_ptr, ioc->ctl_cmds.reply,
622 sz))
623 pr_err("failure at %s:%d/%s()!\n", __FILE__,
624 __LINE__, __func__);
625 return 1;
626 }
627
628 dctlprintk(ioc, pr_info(MPT3SAS_FMT
629 "%s: handle(0x%04x), lun(%d), task_mid(%d)\n", ioc->name,
630 desc, le16_to_cpu(tm_request->DevHandle), lun,
631 le16_to_cpu(tm_request->TaskMID)));
632 return 0;
633}
634
635/**
636 * _ctl_do_mpt_command - main handler for MPT3COMMAND opcode
637 * @ioc: per adapter object
638 * @karg - (struct mpt3_ioctl_command)
639 * @mf - pointer to mf in user space
640 */
641static long
642_ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
643 void __user *mf)
644{
645 MPI2RequestHeader_t *mpi_request = NULL, *request;
646 MPI2DefaultReply_t *mpi_reply;
aff39e61 647 Mpi26NVMeEncapsulatedRequest_t *nvme_encap_request = NULL;
f92363d1 648 u32 ioc_state;
f92363d1 649 u16 smid;
8bbb1cf6 650 unsigned long timeout;
f92363d1 651 u8 issue_reset;
aff39e61 652 u32 sz, sz_arg;
f92363d1
SR		 653 void *psge;
654 void *data_out = NULL;
655 dma_addr_t data_out_dma = 0;
656 size_t data_out_sz = 0;
657 void *data_in = NULL;
658 dma_addr_t data_in_dma = 0;
659 size_t data_in_sz = 0;
660 long ret;
661 u16 wait_state_count;
c696f7b8 662 u16 device_handle = MPT3SAS_INVALID_DEVICE_HANDLE;
f92363d1
SR		 663
664 issue_reset = 0;
665
666 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
667 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
668 ioc->name, __func__);
669 ret = -EAGAIN;
670 goto out;
671 }
672
673 wait_state_count = 0;
674 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
675 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
676 if (wait_state_count++ == 10) {
677 pr_err(MPT3SAS_FMT
678 "%s: failed due to ioc not operational\n",
679 ioc->name, __func__);
680 ret = -EFAULT;
681 goto out;
682 }
683 ssleep(1);
684 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
685 pr_info(MPT3SAS_FMT
686 "%s: waiting for operational state(count=%d)\n",
687 ioc->name,
688 __func__, wait_state_count);
689 }
690 if (wait_state_count)
691 pr_info(MPT3SAS_FMT "%s: ioc is operational\n",
692 ioc->name, __func__);
693
694 mpi_request = kzalloc(ioc->request_sz, GFP_KERNEL);
695 if (!mpi_request) {
696 pr_err(MPT3SAS_FMT
697 "%s: failed obtaining a memory for mpi_request\n",
698 ioc->name, __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 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
722 ioc->name, __func__);
723 ret = -EAGAIN;
724 goto out;
725 }
726 } else {
727
728 smid = mpt3sas_base_get_smid_scsiio(ioc, ioc->ctl_cb_idx, NULL);
729 if (!smid) {
730 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
731 ioc->name, __func__);
732 ret = -EAGAIN;
733 goto out;
734 }
735 }
736
737 ret = 0;
738 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
739 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
740 request = mpt3sas_base_get_msg_frame(ioc, smid);
741 memcpy(request, mpi_request, karg.data_sge_offset*4);
742 ioc->ctl_cmds.smid = smid;
743 data_out_sz = karg.data_out_size;
744 data_in_sz = karg.data_in_size;
745
746 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
c696f7b8
SPS		 747 mpi_request->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
748 mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT ||
aff39e61
SPS		 749 mpi_request->Function == MPI2_FUNCTION_SATA_PASSTHROUGH ||
750 mpi_request->Function == MPI2_FUNCTION_NVME_ENCAPSULATED) {
c696f7b8
SPS		 751
752 device_handle = le16_to_cpu(mpi_request->FunctionDependent1);
753 if (!device_handle || (device_handle >
754 ioc->facts.MaxDevHandle)) {
f92363d1
SR		 755 ret = -EINVAL;
756 mpt3sas_base_free_smid(ioc, smid);
757 goto out;
758 }
759 }
760
761 /* obtain dma-able memory for data transfer */
762 if (data_out_sz) /* WRITE */ {
763 data_out = pci_alloc_consistent(ioc->pdev, data_out_sz,
764 &data_out_dma);
765 if (!data_out) {
766 pr_err("failure at %s:%d/%s()!\n", __FILE__,
767 __LINE__, __func__);
768 ret = -ENOMEM;
769 mpt3sas_base_free_smid(ioc, smid);
770 goto out;
771 }
772 if (copy_from_user(data_out, karg.data_out_buf_ptr,
773 data_out_sz)) {
774 pr_err("failure at %s:%d/%s()!\n", __FILE__,
775 __LINE__, __func__);
776 ret = -EFAULT;
777 mpt3sas_base_free_smid(ioc, smid);
778 goto out;
779 }
780 }
781
782 if (data_in_sz) /* READ */ {
783 data_in = pci_alloc_consistent(ioc->pdev, data_in_sz,
784 &data_in_dma);
785 if (!data_in) {
786 pr_err("failure at %s:%d/%s()!\n", __FILE__,
787 __LINE__, __func__);
788 ret = -ENOMEM;
789 mpt3sas_base_free_smid(ioc, smid);
790 goto out;
791 }
792 }
793
794 psge = (void *)request + (karg.data_sge_offset*4);
795
796 /* send command to firmware */
f92363d1 797 _ctl_display_some_debug(ioc, smid, "ctl_request", NULL);
f92363d1
SR		 798
799 init_completion(&ioc->ctl_cmds.done);
800 switch (mpi_request->Function) {
aff39e61
SPS		 801 case MPI2_FUNCTION_NVME_ENCAPSULATED:
802 {
803 nvme_encap_request = (Mpi26NVMeEncapsulatedRequest_t *)request;
804 /*
805 * Get the Physical Address of the sense buffer.
806 * Use Error Response buffer address field to hold the sense
807 * buffer address.
808 * Clear the internal sense buffer, which will potentially hold
809 * the Completion Queue Entry on return, or 0 if no Entry.
810 * Build the PRPs and set direction bits.
811 * Send the request.
812 */
813 nvme_encap_request->ErrorResponseBaseAddress = ioc->sense_dma &
814 0xFFFFFFFF00000000;
815 nvme_encap_request->ErrorResponseBaseAddress |=
816 (U64)mpt3sas_base_get_sense_buffer_dma(ioc, smid);
817 nvme_encap_request->ErrorResponseAllocationLength =
818 NVME_ERROR_RESPONSE_SIZE;
819 memset(ioc->ctl_cmds.sense, 0, NVME_ERROR_RESPONSE_SIZE);
820 ioc->build_nvme_prp(ioc, smid, nvme_encap_request,
821 data_out_dma, data_out_sz, data_in_dma, data_in_sz);
822 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
823 dtmprintk(ioc, pr_info(MPT3SAS_FMT "handle(0x%04x) :"
824 "ioctl failed due to device removal in progress\n",
825 ioc->name, device_handle));
826 mpt3sas_base_free_smid(ioc, smid);
827 ret = -EINVAL;
828 goto out;
829 }
830 ioc->put_smid_nvme_encap(ioc, smid);
831 break;
832 }
f92363d1
SR		 833 case MPI2_FUNCTION_SCSI_IO_REQUEST:
834 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
835 {
836 Mpi2SCSIIORequest_t *scsiio_request =
837 (Mpi2SCSIIORequest_t *)request;
838 scsiio_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
839 scsiio_request->SenseBufferLowAddress =
840 mpt3sas_base_get_sense_buffer_dma(ioc, smid);
841 memset(ioc->ctl_cmds.sense, 0, SCSI_SENSE_BUFFERSIZE);
c696f7b8
SPS		 842 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
843 dtmprintk(ioc, pr_info(MPT3SAS_FMT
844 "handle(0x%04x) :ioctl failed due to device removal in progress\n",
845 ioc->name, device_handle));
846 mpt3sas_base_free_smid(ioc, smid);
847 ret = -EINVAL;
848 goto out;
849 }
f92363d1
SR		 850 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
851 data_in_dma, data_in_sz);
f92363d1 852 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)
81c16f83 853 ioc->put_smid_scsi_io(ioc, smid, device_handle);
f92363d1 854 else
81c16f83 855 ioc->put_smid_default(ioc, smid);
f92363d1
SR		 856 break;
857 }
858 case MPI2_FUNCTION_SCSI_TASK_MGMT:
859 {
860 Mpi2SCSITaskManagementRequest_t *tm_request =
861 (Mpi2SCSITaskManagementRequest_t *)request;
862
863 dtmprintk(ioc, pr_info(MPT3SAS_FMT
864 "TASK_MGMT: handle(0x%04x), task_type(0x%02x)\n",
865 ioc->name,
866 le16_to_cpu(tm_request->DevHandle), tm_request->TaskType));
459325c4 867 ioc->got_task_abort_from_ioctl = 1;
f92363d1
SR		 868 if (tm_request->TaskType ==
869 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK ||
870 tm_request->TaskType ==
871 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) {
872 if (_ctl_set_task_mid(ioc, &karg, tm_request)) {
873 mpt3sas_base_free_smid(ioc, smid);
459325c4 874 ioc->got_task_abort_from_ioctl = 0;
f92363d1
SR		 875 goto out;
876 }
877 }
459325c4 878 ioc->got_task_abort_from_ioctl = 0;
f92363d1 879
c696f7b8
SPS		 880 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
881 dtmprintk(ioc, pr_info(MPT3SAS_FMT
882 "handle(0x%04x) :ioctl failed due to device removal in progress\n",
883 ioc->name, device_handle));
884 mpt3sas_base_free_smid(ioc, smid);
885 ret = -EINVAL;
886 goto out;
887 }
f92363d1
SR		 888 mpt3sas_scsih_set_tm_flag(ioc, le16_to_cpu(
889 tm_request->DevHandle));
890 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
891 data_in_dma, data_in_sz);
81c16f83 892 ioc->put_smid_hi_priority(ioc, smid, 0);
f92363d1
SR		 893 break;
894 }
895 case MPI2_FUNCTION_SMP_PASSTHROUGH:
896 {
897 Mpi2SmpPassthroughRequest_t *smp_request =
898 (Mpi2SmpPassthroughRequest_t *)mpi_request;
899 u8 *data;
900
901 /* ioc determines which port to use */
902 smp_request->PhysicalPort = 0xFF;
903 if (smp_request->PassthroughFlags &
904 MPI2_SMP_PT_REQ_PT_FLAGS_IMMEDIATE)
905 data = (u8 *)&smp_request->SGL;
906 else {
907 if (unlikely(data_out == NULL)) {
908 pr_err("failure at %s:%d/%s()!\n",
909 __FILE__, __LINE__, __func__);
910 mpt3sas_base_free_smid(ioc, smid);
911 ret = -EINVAL;
912 goto out;
913 }
914 data = data_out;
915 }
916
917 if (data[1] == 0x91 && (data[10] == 1 || data[10] == 2)) {
918 ioc->ioc_link_reset_in_progress = 1;
919 ioc->ignore_loginfos = 1;
920 }
921 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
922 data_in_sz);
81c16f83 923 ioc->put_smid_default(ioc, smid);
f92363d1
SR		 924 break;
925 }
926 case MPI2_FUNCTION_SATA_PASSTHROUGH:
c696f7b8
SPS		 927 {
928 if (test_bit(device_handle, ioc->device_remove_in_progress)) {
929 dtmprintk(ioc, pr_info(MPT3SAS_FMT
930 "handle(0x%04x) :ioctl failed due to device removal in progress\n",
931 ioc->name, device_handle));
932 mpt3sas_base_free_smid(ioc, smid);
933 ret = -EINVAL;
934 goto out;
935 }
936 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
937 data_in_sz);
81c16f83 938 ioc->put_smid_default(ioc, smid);
c696f7b8
SPS		 939 break;
940 }
f92363d1
SR		 941 case MPI2_FUNCTION_FW_DOWNLOAD:
942 case MPI2_FUNCTION_FW_UPLOAD:
943 {
944 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
945 data_in_sz);
81c16f83 946 ioc->put_smid_default(ioc, smid);
f92363d1
SR		 947 break;
948 }
949 case MPI2_FUNCTION_TOOLBOX:
950 {
951 Mpi2ToolboxCleanRequest_t *toolbox_request =
952 (Mpi2ToolboxCleanRequest_t *)mpi_request;
953
954 if (toolbox_request->Tool == MPI2_TOOLBOX_DIAGNOSTIC_CLI_TOOL) {
955 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
956 data_in_dma, data_in_sz);
957 } else {
958 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
959 data_in_dma, data_in_sz);
960 }
81c16f83 961 ioc->put_smid_default(ioc, smid);
f92363d1
SR		 962 break;
963 }
964 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
965 {
966 Mpi2SasIoUnitControlRequest_t *sasiounit_request =
967 (Mpi2SasIoUnitControlRequest_t *)mpi_request;
968
969 if (sasiounit_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET
970 || sasiounit_request->Operation ==
971 MPI2_SAS_OP_PHY_LINK_RESET) {
972 ioc->ioc_link_reset_in_progress = 1;
973 ioc->ignore_loginfos = 1;
974 }
975 /* drop to default case for posting the request */
976 }
977 default:
978 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
979 data_in_dma, data_in_sz);
81c16f83 980 ioc->put_smid_default(ioc, smid);
f92363d1
SR		 981 break;
982 }
983
984 if (karg.timeout < MPT3_IOCTL_DEFAULT_TIMEOUT)
985 timeout = MPT3_IOCTL_DEFAULT_TIMEOUT;
986 else
987 timeout = karg.timeout;
8bbb1cf6 988 wait_for_completion_timeout(&ioc->ctl_cmds.done, timeout*HZ);
f92363d1
SR		 989 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
990 Mpi2SCSITaskManagementRequest_t *tm_request =
991 (Mpi2SCSITaskManagementRequest_t *)mpi_request;
992 mpt3sas_scsih_clear_tm_flag(ioc, le16_to_cpu(
993 tm_request->DevHandle));
994 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
995 } else if ((mpi_request->Function == MPI2_FUNCTION_SMP_PASSTHROUGH ||
996 mpi_request->Function == MPI2_FUNCTION_SAS_IO_UNIT_CONTROL) &&
997 ioc->ioc_link_reset_in_progress) {
998 ioc->ioc_link_reset_in_progress = 0;
999 ioc->ignore_loginfos = 0;
1000 }
1001 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1002 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
1003 __func__);
1004 _debug_dump_mf(mpi_request, karg.data_sge_offset);
1005 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
1006 issue_reset = 1;
1007 goto issue_host_reset;
1008 }
1009
1010 mpi_reply = ioc->ctl_cmds.reply;
f92363d1 1011
f92363d1
SR		 1012 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_TASK_MGMT &&
1013 (ioc->logging_level & MPT_DEBUG_TM)) {
1014 Mpi2SCSITaskManagementReply_t *tm_reply =
1015 (Mpi2SCSITaskManagementReply_t *)mpi_reply;
1016
1017 pr_info(MPT3SAS_FMT "TASK_MGMT: " \
1018 "IOCStatus(0x%04x), IOCLogInfo(0x%08x), "
1019 "TerminationCount(0x%08x)\n", ioc->name,
1020 le16_to_cpu(tm_reply->IOCStatus),
1021 le32_to_cpu(tm_reply->IOCLogInfo),
1022 le32_to_cpu(tm_reply->TerminationCount));
1023 }
af009411 1024
f92363d1
SR		 1025 /* copy out xdata to user */
1026 if (data_in_sz) {
1027 if (copy_to_user(karg.data_in_buf_ptr, data_in,
1028 data_in_sz)) {
1029 pr_err("failure at %s:%d/%s()!\n", __FILE__,
1030 __LINE__, __func__);
1031 ret = -ENODATA;
1032 goto out;
1033 }
1034 }
1035
1036 /* copy out reply message frame to user */
1037 if (karg.max_reply_bytes) {
1038 sz = min_t(u32, karg.max_reply_bytes, ioc->reply_sz);
1039 if (copy_to_user(karg.reply_frame_buf_ptr, ioc->ctl_cmds.reply,
1040 sz)) {
1041 pr_err("failure at %s:%d/%s()!\n", __FILE__,
1042 __LINE__, __func__);
1043 ret = -ENODATA;
1044 goto out;
1045 }
1046 }
1047
aff39e61 1048 /* copy out sense/NVMe Error Response to user */
f92363d1
SR		 1049 if (karg.max_sense_bytes && (mpi_request->Function ==
1050 MPI2_FUNCTION_SCSI_IO_REQUEST || mpi_request->Function ==
aff39e61
SPS		 1051 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH || mpi_request->Function ==
1052 MPI2_FUNCTION_NVME_ENCAPSULATED)) {
1053 if (karg.sense_data_ptr == NULL) {
1054 pr_info(MPT3SAS_FMT "Response buffer provided"
1055 " by application is NULL; Response data will"
1056 " not be returned.\n", ioc->name);
1057 goto out;
1058 }
1059 sz_arg = (mpi_request->Function ==
1060 MPI2_FUNCTION_NVME_ENCAPSULATED) ? NVME_ERROR_RESPONSE_SIZE :
1061 SCSI_SENSE_BUFFERSIZE;
1062 sz = min_t(u32, karg.max_sense_bytes, sz_arg);
f92363d1
SR		 1063 if (copy_to_user(karg.sense_data_ptr, ioc->ctl_cmds.sense,
1064 sz)) {
1065 pr_err("failure at %s:%d/%s()!\n", __FILE__,
aff39e61 1066 __LINE__, __func__);
f92363d1
SR		 1067 ret = -ENODATA;
1068 goto out;
1069 }
1070 }
1071
1072 issue_host_reset:
1073 if (issue_reset) {
1074 ret = -ENODATA;
1075 if ((mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
1076 mpi_request->Function ==
1077 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
1078 mpi_request->Function == MPI2_FUNCTION_SATA_PASSTHROUGH)) {
1079 pr_info(MPT3SAS_FMT "issue target reset: handle = (0x%04x)\n",
1080 ioc->name,
1081 le16_to_cpu(mpi_request->FunctionDependent1));
1082 mpt3sas_halt_firmware(ioc);
96902835 1083 mpt3sas_scsih_issue_locked_tm(ioc,
f92363d1 1084 le16_to_cpu(mpi_request->FunctionDependent1), 0, 0,
96902835 1085 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 30);
f92363d1 1086 } else
98c56ad3 1087 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
f92363d1
SR		 1088 }
1089
1090 out:
1091
1092 /* free memory associated with sg buffers */
1093 if (data_in)
1094 pci_free_consistent(ioc->pdev, data_in_sz, data_in,
1095 data_in_dma);
1096
1097 if (data_out)
1098 pci_free_consistent(ioc->pdev, data_out_sz, data_out,
1099 data_out_dma);
1100
1101 kfree(mpi_request);
1102 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1103 return ret;
1104}
1105
1106/**
1107 * _ctl_getiocinfo - main handler for MPT3IOCINFO opcode
1108 * @ioc: per adapter object
1109 * @arg - user space buffer containing ioctl content
1110 */
1111static long
1112_ctl_getiocinfo(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1113{
1114 struct mpt3_ioctl_iocinfo karg;
1115
f92363d1
SR		 1116 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1117 __func__));
1118
1119 memset(&karg, 0 , sizeof(karg));
f92363d1
SR		 1120 if (ioc->pfacts)
1121 karg.port_number = ioc->pfacts[0].PortNumber;
1122 karg.hw_rev = ioc->pdev->revision;
1123 karg.pci_id = ioc->pdev->device;
1124 karg.subsystem_device = ioc->pdev->subsystem_device;
1125 karg.subsystem_vendor = ioc->pdev->subsystem_vendor;
1126 karg.pci_information.u.bits.bus = ioc->pdev->bus->number;
1127 karg.pci_information.u.bits.device = PCI_SLOT(ioc->pdev->devfn);
1128 karg.pci_information.u.bits.function = PCI_FUNC(ioc->pdev->devfn);
1129 karg.pci_information.segment_id = pci_domain_nr(ioc->pdev->bus);
1130 karg.firmware_version = ioc->facts.FWVersion.Word;
c84b06a4 1131 strcpy(karg.driver_version, ioc->driver_name);
f92363d1 1132 strcat(karg.driver_version, "-");
d357e84d
SR		 1133 switch (ioc->hba_mpi_version_belonged) {
1134 case MPI2_VERSION:
7786ab6a
SR		 1135 if (ioc->is_warpdrive)
1136 karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2_SSS6200;
1137 else
1138 karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2;
d357e84d
SR		 1139 strcat(karg.driver_version, MPT2SAS_DRIVER_VERSION);
1140 break;
1141 case MPI25_VERSION:
b130b0d5 1142 case MPI26_VERSION:
998f26ae
SPS		 1143 if (ioc->is_gen35_ioc)
1144 karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS35;
1145 else
1146 karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS3;
d357e84d
SR		 1147 strcat(karg.driver_version, MPT3SAS_DRIVER_VERSION);
1148 break;
1149 }
f92363d1
SR		 1150 karg.bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
1151
1152 if (copy_to_user(arg, &karg, sizeof(karg))) {
1153 pr_err("failure at %s:%d/%s()!\n",
1154 __FILE__, __LINE__, __func__);
1155 return -EFAULT;
1156 }
1157 return 0;
1158}
1159
1160/**
1161 * _ctl_eventquery - main handler for MPT3EVENTQUERY opcode
1162 * @ioc: per adapter object
1163 * @arg - user space buffer containing ioctl content
1164 */
1165static long
1166_ctl_eventquery(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1167{
1168 struct mpt3_ioctl_eventquery karg;
1169
1170 if (copy_from_user(&karg, arg, sizeof(karg))) {
1171 pr_err("failure at %s:%d/%s()!\n",
1172 __FILE__, __LINE__, __func__);
1173 return -EFAULT;
1174 }
1175
1176 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1177 __func__));
1178
1179 karg.event_entries = MPT3SAS_CTL_EVENT_LOG_SIZE;
1180 memcpy(karg.event_types, ioc->event_type,
1181 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1182
1183 if (copy_to_user(arg, &karg, sizeof(karg))) {
1184 pr_err("failure at %s:%d/%s()!\n",
1185 __FILE__, __LINE__, __func__);
1186 return -EFAULT;
1187 }
1188 return 0;
1189}
1190
1191/**
1192 * _ctl_eventenable - main handler for MPT3EVENTENABLE opcode
1193 * @ioc: per adapter object
1194 * @arg - user space buffer containing ioctl content
1195 */
1196static long
1197_ctl_eventenable(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1198{
1199 struct mpt3_ioctl_eventenable karg;
1200
1201 if (copy_from_user(&karg, arg, sizeof(karg))) {
1202 pr_err("failure at %s:%d/%s()!\n",
1203 __FILE__, __LINE__, __func__);
1204 return -EFAULT;
1205 }
1206
1207 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1208 __func__));
1209
1210 memcpy(ioc->event_type, karg.event_types,
1211 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1212 mpt3sas_base_validate_event_type(ioc, ioc->event_type);
1213
1214 if (ioc->event_log)
1215 return 0;
1216 /* initialize event_log */
1217 ioc->event_context = 0;
1218 ioc->aen_event_read_flag = 0;
1219 ioc->event_log = kcalloc(MPT3SAS_CTL_EVENT_LOG_SIZE,
1220 sizeof(struct MPT3_IOCTL_EVENTS), GFP_KERNEL);
1221 if (!ioc->event_log) {
1222 pr_err("failure at %s:%d/%s()!\n",
1223 __FILE__, __LINE__, __func__);
1224 return -ENOMEM;
1225 }
1226 return 0;
1227}
1228
1229/**
1230 * _ctl_eventreport - main handler for MPT3EVENTREPORT opcode
1231 * @ioc: per adapter object
1232 * @arg - user space buffer containing ioctl content
1233 */
1234static long
1235_ctl_eventreport(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1236{
1237 struct mpt3_ioctl_eventreport karg;
1238 u32 number_bytes, max_events, max;
1239 struct mpt3_ioctl_eventreport __user *uarg = arg;
1240
1241 if (copy_from_user(&karg, arg, sizeof(karg))) {
1242 pr_err("failure at %s:%d/%s()!\n",
1243 __FILE__, __LINE__, __func__);
1244 return -EFAULT;
1245 }
1246
1247 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1248 __func__));
1249
1250 number_bytes = karg.hdr.max_data_size -
1251 sizeof(struct mpt3_ioctl_header);
1252 max_events = number_bytes/sizeof(struct MPT3_IOCTL_EVENTS);
1253 max = min_t(u32, MPT3SAS_CTL_EVENT_LOG_SIZE, max_events);
1254
1255 /* If fewer than 1 event is requested, there must have
1256 * been some type of error.
1257 */
1258 if (!max || !ioc->event_log)
1259 return -ENODATA;
1260
1261 number_bytes = max * sizeof(struct MPT3_IOCTL_EVENTS);
1262 if (copy_to_user(uarg->event_data, ioc->event_log, number_bytes)) {
1263 pr_err("failure at %s:%d/%s()!\n",
1264 __FILE__, __LINE__, __func__);
1265 return -EFAULT;
1266 }
1267
1268 /* reset flag so SIGIO can restart */
1269 ioc->aen_event_read_flag = 0;
1270 return 0;
1271}
1272
1273/**
1274 * _ctl_do_reset - main handler for MPT3HARDRESET opcode
1275 * @ioc: per adapter object
1276 * @arg - user space buffer containing ioctl content
1277 */
1278static long
1279_ctl_do_reset(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1280{
1281 struct mpt3_ioctl_diag_reset karg;
1282 int retval;
1283
1284 if (copy_from_user(&karg, arg, sizeof(karg))) {
1285 pr_err("failure at %s:%d/%s()!\n",
1286 __FILE__, __LINE__, __func__);
1287 return -EFAULT;
1288 }
1289
1290 if (ioc->shost_recovery || ioc->pci_error_recovery ||
1291 ioc->is_driver_loading)
1292 return -EAGAIN;
1293
1294 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1295 __func__));
1296
98c56ad3 1297 retval = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
f92363d1
SR		 1298 pr_info(MPT3SAS_FMT "host reset: %s\n",
1299 ioc->name, ((!retval) ? "SUCCESS" : "FAILED"));
1300 return 0;
1301}
1302
1303/**
1304 * _ctl_btdh_search_sas_device - searching for sas device
1305 * @ioc: per adapter object
1306 * @btdh: btdh ioctl payload
1307 */
1308static int
1309_ctl_btdh_search_sas_device(struct MPT3SAS_ADAPTER *ioc,
1310 struct mpt3_ioctl_btdh_mapping *btdh)
1311{
1312 struct _sas_device *sas_device;
1313 unsigned long flags;
1314 int rc = 0;
1315
1316 if (list_empty(&ioc->sas_device_list))
1317 return rc;
1318
1319 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1320 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
1321 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1322 btdh->handle == sas_device->handle) {
1323 btdh->bus = sas_device->channel;
1324 btdh->id = sas_device->id;
1325 rc = 1;
1326 goto out;
1327 } else if (btdh->bus == sas_device->channel && btdh->id ==
1328 sas_device->id && btdh->handle == 0xFFFF) {
1329 btdh->handle = sas_device->handle;
1330 rc = 1;
1331 goto out;
1332 }
1333 }
1334 out:
1335 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1336 return rc;
1337}
1338
45aa6a1a
SPS		 1339/**
1340 * _ctl_btdh_search_pcie_device - searching for pcie device
1341 * @ioc: per adapter object
1342 * @btdh: btdh ioctl payload
1343 */
1344static int
1345_ctl_btdh_search_pcie_device(struct MPT3SAS_ADAPTER *ioc,
1346 struct mpt3_ioctl_btdh_mapping *btdh)
1347{
1348 struct _pcie_device *pcie_device;
1349 unsigned long flags;
1350 int rc = 0;
1351
1352 if (list_empty(&ioc->pcie_device_list))
1353 return rc;
1354
1355 spin_lock_irqsave(&ioc->pcie_device_lock, flags);
1356 list_for_each_entry(pcie_device, &ioc->pcie_device_list, list) {
1357 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1358 btdh->handle == pcie_device->handle) {
1359 btdh->bus = pcie_device->channel;
1360 btdh->id = pcie_device->id;
1361 rc = 1;
1362 goto out;
1363 } else if (btdh->bus == pcie_device->channel && btdh->id ==
1364 pcie_device->id && btdh->handle == 0xFFFF) {
1365 btdh->handle = pcie_device->handle;
1366 rc = 1;
1367 goto out;
1368 }
1369 }
1370 out:
1371 spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
1372 return rc;
1373}
1374
f92363d1
SR		 1375/**
1376 * _ctl_btdh_search_raid_device - searching for raid device
1377 * @ioc: per adapter object
1378 * @btdh: btdh ioctl payload
1379 */
1380static int
1381_ctl_btdh_search_raid_device(struct MPT3SAS_ADAPTER *ioc,
1382 struct mpt3_ioctl_btdh_mapping *btdh)
1383{
1384 struct _raid_device *raid_device;
1385 unsigned long flags;
1386 int rc = 0;
1387
1388 if (list_empty(&ioc->raid_device_list))
1389 return rc;
1390
1391 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1392 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
1393 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1394 btdh->handle == raid_device->handle) {
1395 btdh->bus = raid_device->channel;
1396 btdh->id = raid_device->id;
1397 rc = 1;
1398 goto out;
1399 } else if (btdh->bus == raid_device->channel && btdh->id ==
1400 raid_device->id && btdh->handle == 0xFFFF) {
1401 btdh->handle = raid_device->handle;
1402 rc = 1;
1403 goto out;
1404 }
1405 }
1406 out:
1407 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1408 return rc;
1409}
1410
1411/**
1412 * _ctl_btdh_mapping - main handler for MPT3BTDHMAPPING opcode
1413 * @ioc: per adapter object
1414 * @arg - user space buffer containing ioctl content
1415 */
1416static long
1417_ctl_btdh_mapping(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1418{
1419 struct mpt3_ioctl_btdh_mapping karg;
1420 int rc;
1421
1422 if (copy_from_user(&karg, arg, sizeof(karg))) {
1423 pr_err("failure at %s:%d/%s()!\n",
1424 __FILE__, __LINE__, __func__);
1425 return -EFAULT;
1426 }
1427
1428 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1429 __func__));
1430
1431 rc = _ctl_btdh_search_sas_device(ioc, &karg);
45aa6a1a
SPS		 1432 if (!rc)
1433 rc = _ctl_btdh_search_pcie_device(ioc, &karg);
f92363d1
SR		 1434 if (!rc)
1435 _ctl_btdh_search_raid_device(ioc, &karg);
1436
1437 if (copy_to_user(arg, &karg, sizeof(karg))) {
1438 pr_err("failure at %s:%d/%s()!\n",
1439 __FILE__, __LINE__, __func__);
1440 return -EFAULT;
1441 }
1442 return 0;
1443}
1444
1445/**
1446 * _ctl_diag_capability - return diag buffer capability
1447 * @ioc: per adapter object
1448 * @buffer_type: specifies either TRACE, SNAPSHOT, or EXTENDED
1449 *
1450 * returns 1 when diag buffer support is enabled in firmware
1451 */
1452static u8
1453_ctl_diag_capability(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type)
1454{
1455 u8 rc = 0;
1456
1457 switch (buffer_type) {
1458 case MPI2_DIAG_BUF_TYPE_TRACE:
1459 if (ioc->facts.IOCCapabilities &
1460 MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER)
1461 rc = 1;
1462 break;
1463 case MPI2_DIAG_BUF_TYPE_SNAPSHOT:
1464 if (ioc->facts.IOCCapabilities &
1465 MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER)
1466 rc = 1;
1467 break;
1468 case MPI2_DIAG_BUF_TYPE_EXTENDED:
1469 if (ioc->facts.IOCCapabilities &
1470 MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER)
1471 rc = 1;
1472 }
1473
1474 return rc;
1475}
1476
1477
1478/**
1479 * _ctl_diag_register_2 - wrapper for registering diag buffer support
1480 * @ioc: per adapter object
1481 * @diag_register: the diag_register struct passed in from user space
1482 *
1483 */
1484static long
1485_ctl_diag_register_2(struct MPT3SAS_ADAPTER *ioc,
1486 struct mpt3_diag_register *diag_register)
1487{
1488 int rc, i;
1489 void *request_data = NULL;
1490 dma_addr_t request_data_dma;
1491 u32 request_data_sz = 0;
1492 Mpi2DiagBufferPostRequest_t *mpi_request;
1493 Mpi2DiagBufferPostReply_t *mpi_reply;
1494 u8 buffer_type;
f92363d1
SR		 1495 u16 smid;
1496 u16 ioc_status;
1497 u32 ioc_state;
1498 u8 issue_reset = 0;
1499
1500 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1501 __func__));
1502
1503 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1504 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1505 pr_err(MPT3SAS_FMT
1506 "%s: failed due to ioc not operational\n",
1507 ioc->name, __func__);
1508 rc = -EAGAIN;
1509 goto out;
1510 }
1511
1512 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
1513 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
1514 ioc->name, __func__);
1515 rc = -EAGAIN;
1516 goto out;
1517 }
1518
1519 buffer_type = diag_register->buffer_type;
1520 if (!_ctl_diag_capability(ioc, buffer_type)) {
1521 pr_err(MPT3SAS_FMT
1522 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1523 ioc->name, __func__, buffer_type);
1524 return -EPERM;
1525 }
1526
1527 if (ioc->diag_buffer_status[buffer_type] &
1528 MPT3_DIAG_BUFFER_IS_REGISTERED) {
1529 pr_err(MPT3SAS_FMT
1530 "%s: already has a registered buffer for buffer_type(0x%02x)\n",
1531 ioc->name, __func__,
1532 buffer_type);
1533 return -EINVAL;
1534 }
1535
1536 if (diag_register->requested_buffer_size % 4) {
1537 pr_err(MPT3SAS_FMT
1538 "%s: the requested_buffer_size is not 4 byte aligned\n",
1539 ioc->name, __func__);
1540 return -EINVAL;
1541 }
1542
1543 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1544 if (!smid) {
1545 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
1546 ioc->name, __func__);
1547 rc = -EAGAIN;
1548 goto out;
1549 }
1550
1551 rc = 0;
1552 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
1553 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1554 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1555 ioc->ctl_cmds.smid = smid;
1556
1557 request_data = ioc->diag_buffer[buffer_type];
1558 request_data_sz = diag_register->requested_buffer_size;
1559 ioc->unique_id[buffer_type] = diag_register->unique_id;
1560 ioc->diag_buffer_status[buffer_type] = 0;
1561 memcpy(ioc->product_specific[buffer_type],
1562 diag_register->product_specific, MPT3_PRODUCT_SPECIFIC_DWORDS);
1563 ioc->diagnostic_flags[buffer_type] = diag_register->diagnostic_flags;
1564
1565 if (request_data) {
1566 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1567 if (request_data_sz != ioc->diag_buffer_sz[buffer_type]) {
1568 pci_free_consistent(ioc->pdev,
1569 ioc->diag_buffer_sz[buffer_type],
1570 request_data, request_data_dma);
1571 request_data = NULL;
1572 }
1573 }
1574
1575 if (request_data == NULL) {
1576 ioc->diag_buffer_sz[buffer_type] = 0;
1577 ioc->diag_buffer_dma[buffer_type] = 0;
1578 request_data = pci_alloc_consistent(
1579 ioc->pdev, request_data_sz, &request_data_dma);
1580 if (request_data == NULL) {
1581 pr_err(MPT3SAS_FMT "%s: failed allocating memory" \
1582 " for diag buffers, requested size(%d)\n",
1583 ioc->name, __func__, request_data_sz);
1584 mpt3sas_base_free_smid(ioc, smid);
1585 return -ENOMEM;
1586 }
1587 ioc->diag_buffer[buffer_type] = request_data;
1588 ioc->diag_buffer_sz[buffer_type] = request_data_sz;
1589 ioc->diag_buffer_dma[buffer_type] = request_data_dma;
1590 }
1591
1592 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
1593 mpi_request->BufferType = diag_register->buffer_type;
1594 mpi_request->Flags = cpu_to_le32(diag_register->diagnostic_flags);
1595 mpi_request->BufferAddress = cpu_to_le64(request_data_dma);
1596 mpi_request->BufferLength = cpu_to_le32(request_data_sz);
1597 mpi_request->VF_ID = 0; /* TODO */
1598 mpi_request->VP_ID = 0;
1599
1600 dctlprintk(ioc, pr_info(MPT3SAS_FMT
1601 "%s: diag_buffer(0x%p), dma(0x%llx), sz(%d)\n",
1602 ioc->name, __func__, request_data,
1603 (unsigned long long)request_data_dma,
1604 le32_to_cpu(mpi_request->BufferLength)));
1605
1606 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
1607 mpi_request->ProductSpecific[i] =
1608 cpu_to_le32(ioc->product_specific[buffer_type][i]);
1609
1610 init_completion(&ioc->ctl_cmds.done);
81c16f83 1611 ioc->put_smid_default(ioc, smid);
8bbb1cf6 1612 wait_for_completion_timeout(&ioc->ctl_cmds.done,
f92363d1
SR		 1613 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
1614
1615 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1616 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
1617 __func__);
1618 _debug_dump_mf(mpi_request,
1619 sizeof(Mpi2DiagBufferPostRequest_t)/4);
1620 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
1621 issue_reset = 1;
1622 goto issue_host_reset;
1623 }
1624
1625 /* process the completed Reply Message Frame */
1626 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
1627 pr_err(MPT3SAS_FMT "%s: no reply message\n",
1628 ioc->name, __func__);
1629 rc = -EFAULT;
1630 goto out;
1631 }
1632
1633 mpi_reply = ioc->ctl_cmds.reply;
1634 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1635
1636 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1637 ioc->diag_buffer_status[buffer_type] |=
1638 MPT3_DIAG_BUFFER_IS_REGISTERED;
1639 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
1640 ioc->name, __func__));
1641 } else {
1642 pr_info(MPT3SAS_FMT
1643 "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
1644 ioc->name, __func__,
1645 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
1646 rc = -EFAULT;
1647 }
1648
1649 issue_host_reset:
1650 if (issue_reset)
98c56ad3 1651 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
f92363d1
SR		 1652
1653 out:
1654
1655 if (rc && request_data)
1656 pci_free_consistent(ioc->pdev, request_data_sz,
1657 request_data, request_data_dma);
1658
1659 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1660 return rc;
1661}
1662
1663/**
1664 * mpt3sas_enable_diag_buffer - enabling diag_buffers support driver load time
1665 * @ioc: per adapter object
1666 * @bits_to_register: bitwise field where trace is bit 0, and snapshot is bit 1
1667 *
1668 * This is called when command line option diag_buffer_enable is enabled
1669 * at driver load time.
1670 */
1671void
1672mpt3sas_enable_diag_buffer(struct MPT3SAS_ADAPTER *ioc, u8 bits_to_register)
1673{
1674 struct mpt3_diag_register diag_register;
1675
1676 memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
1677
1678 if (bits_to_register & 1) {
1679 pr_info(MPT3SAS_FMT "registering trace buffer support\n",
1680 ioc->name);
1681 ioc->diag_trigger_master.MasterData =
1682 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
1683 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
1684 /* register for 2MB buffers */
1685 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1686 diag_register.unique_id = 0x7075900;
1687 _ctl_diag_register_2(ioc, &diag_register);
1688 }
1689
1690 if (bits_to_register & 2) {
1691 pr_info(MPT3SAS_FMT "registering snapshot buffer support\n",
1692 ioc->name);
1693 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_SNAPSHOT;
1694 /* register for 2MB buffers */
1695 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1696 diag_register.unique_id = 0x7075901;
1697 _ctl_diag_register_2(ioc, &diag_register);
1698 }
1699
1700 if (bits_to_register & 4) {
1701 pr_info(MPT3SAS_FMT "registering extended buffer support\n",
1702 ioc->name);
1703 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_EXTENDED;
1704 /* register for 2MB buffers */
1705 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1706 diag_register.unique_id = 0x7075901;
1707 _ctl_diag_register_2(ioc, &diag_register);
1708 }
1709}
1710
1711/**
1712 * _ctl_diag_register - application register with driver
1713 * @ioc: per adapter object
1714 * @arg - user space buffer containing ioctl content
1715 *
1716 * This will allow the driver to setup any required buffers that will be
1717 * needed by firmware to communicate with the driver.
1718 */
1719static long
1720_ctl_diag_register(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1721{
1722 struct mpt3_diag_register karg;
1723 long rc;
1724
1725 if (copy_from_user(&karg, arg, sizeof(karg))) {
1726 pr_err("failure at %s:%d/%s()!\n",
1727 __FILE__, __LINE__, __func__);
1728 return -EFAULT;
1729 }
1730
1731 rc = _ctl_diag_register_2(ioc, &karg);
1732 return rc;
1733}
1734
1735/**
1736 * _ctl_diag_unregister - application unregister with driver
1737 * @ioc: per adapter object
1738 * @arg - user space buffer containing ioctl content
1739 *
1740 * This will allow the driver to cleanup any memory allocated for diag
1741 * messages and to free up any resources.
1742 */
1743static long
1744_ctl_diag_unregister(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1745{
1746 struct mpt3_diag_unregister karg;
1747 void *request_data;
1748 dma_addr_t request_data_dma;
1749 u32 request_data_sz;
1750 u8 buffer_type;
1751
1752 if (copy_from_user(&karg, arg, sizeof(karg))) {
1753 pr_err("failure at %s:%d/%s()!\n",
1754 __FILE__, __LINE__, __func__);
1755 return -EFAULT;
1756 }
1757
1758 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1759 __func__));
1760
1761 buffer_type = karg.unique_id & 0x000000ff;
1762 if (!_ctl_diag_capability(ioc, buffer_type)) {
1763 pr_err(MPT3SAS_FMT
1764 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1765 ioc->name, __func__, buffer_type);
1766 return -EPERM;
1767 }
1768
1769 if ((ioc->diag_buffer_status[buffer_type] &
1770 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1771 pr_err(MPT3SAS_FMT
1772 "%s: buffer_type(0x%02x) is not registered\n",
1773 ioc->name, __func__, buffer_type);
1774 return -EINVAL;
1775 }
1776 if ((ioc->diag_buffer_status[buffer_type] &
1777 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
1778 pr_err(MPT3SAS_FMT
1779 "%s: buffer_type(0x%02x) has not been released\n",
1780 ioc->name, __func__, buffer_type);
1781 return -EINVAL;
1782 }
1783
1784 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1785 pr_err(MPT3SAS_FMT
1786 "%s: unique_id(0x%08x) is not registered\n",
1787 ioc->name, __func__, karg.unique_id);
1788 return -EINVAL;
1789 }
1790
1791 request_data = ioc->diag_buffer[buffer_type];
1792 if (!request_data) {
1793 pr_err(MPT3SAS_FMT
1794 "%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
1795 ioc->name, __func__, buffer_type);
1796 return -ENOMEM;
1797 }
1798
1799 request_data_sz = ioc->diag_buffer_sz[buffer_type];
1800 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1801 pci_free_consistent(ioc->pdev, request_data_sz,
1802 request_data, request_data_dma);
1803 ioc->diag_buffer[buffer_type] = NULL;
1804 ioc->diag_buffer_status[buffer_type] = 0;
1805 return 0;
1806}
1807
1808/**
1809 * _ctl_diag_query - query relevant info associated with diag buffers
1810 * @ioc: per adapter object
1811 * @arg - user space buffer containing ioctl content
1812 *
1813 * The application will send only buffer_type and unique_id. Driver will
1814 * inspect unique_id first, if valid, fill in all the info. If unique_id is
1815 * 0x00, the driver will return info specified by Buffer Type.
1816 */
1817static long
1818_ctl_diag_query(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1819{
1820 struct mpt3_diag_query karg;
1821 void *request_data;
1822 int i;
1823 u8 buffer_type;
1824
1825 if (copy_from_user(&karg, arg, sizeof(karg))) {
1826 pr_err("failure at %s:%d/%s()!\n",
1827 __FILE__, __LINE__, __func__);
1828 return -EFAULT;
1829 }
1830
1831 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1832 __func__));
1833
1834 karg.application_flags = 0;
1835 buffer_type = karg.buffer_type;
1836
1837 if (!_ctl_diag_capability(ioc, buffer_type)) {
1838 pr_err(MPT3SAS_FMT
1839 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1840 ioc->name, __func__, buffer_type);
1841 return -EPERM;
1842 }
1843
1844 if ((ioc->diag_buffer_status[buffer_type] &
1845 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1846 pr_err(MPT3SAS_FMT
1847 "%s: buffer_type(0x%02x) is not registered\n",
1848 ioc->name, __func__, buffer_type);
1849 return -EINVAL;
1850 }
1851
1852 if (karg.unique_id & 0xffffff00) {
1853 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1854 pr_err(MPT3SAS_FMT
1855 "%s: unique_id(0x%08x) is not registered\n",
1856 ioc->name, __func__, karg.unique_id);
1857 return -EINVAL;
1858 }
1859 }
1860
1861 request_data = ioc->diag_buffer[buffer_type];
1862 if (!request_data) {
1863 pr_err(MPT3SAS_FMT
1864 "%s: doesn't have buffer for buffer_type(0x%02x)\n",
1865 ioc->name, __func__, buffer_type);
1866 return -ENOMEM;
1867 }
1868
1869 if (ioc->diag_buffer_status[buffer_type] & MPT3_DIAG_BUFFER_IS_RELEASED)
1870 karg.application_flags = (MPT3_APP_FLAGS_APP_OWNED |
1871 MPT3_APP_FLAGS_BUFFER_VALID);
1872 else
1873 karg.application_flags = (MPT3_APP_FLAGS_APP_OWNED |
1874 MPT3_APP_FLAGS_BUFFER_VALID |
1875 MPT3_APP_FLAGS_FW_BUFFER_ACCESS);
1876
1877 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
1878 karg.product_specific[i] =
1879 ioc->product_specific[buffer_type][i];
1880
1881 karg.total_buffer_size = ioc->diag_buffer_sz[buffer_type];
1882 karg.driver_added_buffer_size = 0;
1883 karg.unique_id = ioc->unique_id[buffer_type];
1884 karg.diagnostic_flags = ioc->diagnostic_flags[buffer_type];
1885
1886 if (copy_to_user(arg, &karg, sizeof(struct mpt3_diag_query))) {
1887 pr_err(MPT3SAS_FMT
1888 "%s: unable to write mpt3_diag_query data @ %p\n",
1889 ioc->name, __func__, arg);
1890 return -EFAULT;
1891 }
1892 return 0;
1893}
1894
1895/**
1896 * mpt3sas_send_diag_release - Diag Release Message
1897 * @ioc: per adapter object
1898 * @buffer_type - specifies either TRACE, SNAPSHOT, or EXTENDED
1899 * @issue_reset - specifies whether host reset is required.
1900 *
1901 */
1902int
1903mpt3sas_send_diag_release(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type,
1904 u8 *issue_reset)
1905{
1906 Mpi2DiagReleaseRequest_t *mpi_request;
1907 Mpi2DiagReleaseReply_t *mpi_reply;
1908 u16 smid;
1909 u16 ioc_status;
1910 u32 ioc_state;
1911 int rc;
f92363d1
SR		 1912
1913 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1914 __func__));
1915
1916 rc = 0;
1917 *issue_reset = 0;
1918
1919 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1920 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1921 if (ioc->diag_buffer_status[buffer_type] &
1922 MPT3_DIAG_BUFFER_IS_REGISTERED)
1923 ioc->diag_buffer_status[buffer_type] |=
1924 MPT3_DIAG_BUFFER_IS_RELEASED;
1925 dctlprintk(ioc, pr_info(MPT3SAS_FMT
1926 "%s: skipping due to FAULT state\n", ioc->name,
1927 __func__));
1928 rc = -EAGAIN;
1929 goto out;
1930 }
1931
1932 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
1933 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
1934 ioc->name, __func__);
1935 rc = -EAGAIN;
1936 goto out;
1937 }
1938
1939 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1940 if (!smid) {
1941 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
1942 ioc->name, __func__);
1943 rc = -EAGAIN;
1944 goto out;
1945 }
1946
1947 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
1948 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1949 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1950 ioc->ctl_cmds.smid = smid;
1951
1952 mpi_request->Function = MPI2_FUNCTION_DIAG_RELEASE;
1953 mpi_request->BufferType = buffer_type;
1954 mpi_request->VF_ID = 0; /* TODO */
1955 mpi_request->VP_ID = 0;
1956
1957 init_completion(&ioc->ctl_cmds.done);
81c16f83 1958 ioc->put_smid_default(ioc, smid);
8bbb1cf6 1959 wait_for_completion_timeout(&ioc->ctl_cmds.done,
f92363d1
SR		 1960 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
1961
1962 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1963 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
1964 __func__);
1965 _debug_dump_mf(mpi_request,
1966 sizeof(Mpi2DiagReleaseRequest_t)/4);
1967 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
1968 *issue_reset = 1;
1969 rc = -EFAULT;
1970 goto out;
1971 }
1972
1973 /* process the completed Reply Message Frame */
1974 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
1975 pr_err(MPT3SAS_FMT "%s: no reply message\n",
1976 ioc->name, __func__);
1977 rc = -EFAULT;
1978 goto out;
1979 }
1980
1981 mpi_reply = ioc->ctl_cmds.reply;
1982 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1983
1984 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1985 ioc->diag_buffer_status[buffer_type] |=
1986 MPT3_DIAG_BUFFER_IS_RELEASED;
1987 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
1988 ioc->name, __func__));
1989 } else {
1990 pr_info(MPT3SAS_FMT
1991 "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
1992 ioc->name, __func__,
1993 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
1994 rc = -EFAULT;
1995 }
1996
1997 out:
1998 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1999 return rc;
2000}
2001
2002/**
2003 * _ctl_diag_release - request to send Diag Release Message to firmware
2004 * @arg - user space buffer containing ioctl content
2005 *
2006 * This allows ownership of the specified buffer to returned to the driver,
2007 * allowing an application to read the buffer without fear that firmware is
9a284e5c 2008 * overwriting information in the buffer.
f92363d1
SR		 2009 */
2010static long
2011_ctl_diag_release(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
2012{
2013 struct mpt3_diag_release karg;
2014 void *request_data;
2015 int rc;
2016 u8 buffer_type;
2017 u8 issue_reset = 0;
2018
2019 if (copy_from_user(&karg, arg, sizeof(karg))) {
2020 pr_err("failure at %s:%d/%s()!\n",
2021 __FILE__, __LINE__, __func__);
2022 return -EFAULT;
2023 }
2024
2025 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
2026 __func__));
2027
2028 buffer_type = karg.unique_id & 0x000000ff;
2029 if (!_ctl_diag_capability(ioc, buffer_type)) {
2030 pr_err(MPT3SAS_FMT
2031 "%s: doesn't have capability for buffer_type(0x%02x)\n",
2032 ioc->name, __func__, buffer_type);
2033 return -EPERM;
2034 }
2035
2036 if ((ioc->diag_buffer_status[buffer_type] &
2037 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
2038 pr_err(MPT3SAS_FMT
2039 "%s: buffer_type(0x%02x) is not registered\n",
2040 ioc->name, __func__, buffer_type);
2041 return -EINVAL;
2042 }
2043
2044 if (karg.unique_id != ioc->unique_id[buffer_type]) {
2045 pr_err(MPT3SAS_FMT
2046 "%s: unique_id(0x%08x) is not registered\n",
2047 ioc->name, __func__, karg.unique_id);
2048 return -EINVAL;
2049 }
2050
2051 if (ioc->diag_buffer_status[buffer_type] &
2052 MPT3_DIAG_BUFFER_IS_RELEASED) {
2053 pr_err(MPT3SAS_FMT
2054 "%s: buffer_type(0x%02x) is already released\n",
2055 ioc->name, __func__,
2056 buffer_type);
2057 return 0;
2058 }
2059
2060 request_data = ioc->diag_buffer[buffer_type];
2061
2062 if (!request_data) {
2063 pr_err(MPT3SAS_FMT
2064 "%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
2065 ioc->name, __func__, buffer_type);
2066 return -ENOMEM;
2067 }
2068
2069 /* buffers were released by due to host reset */
2070 if ((ioc->diag_buffer_status[buffer_type] &
2071 MPT3_DIAG_BUFFER_IS_DIAG_RESET)) {
2072 ioc->diag_buffer_status[buffer_type] |=
2073 MPT3_DIAG_BUFFER_IS_RELEASED;
2074 ioc->diag_buffer_status[buffer_type] &=
2075 ~MPT3_DIAG_BUFFER_IS_DIAG_RESET;
2076 pr_err(MPT3SAS_FMT
2077 "%s: buffer_type(0x%02x) was released due to host reset\n",
2078 ioc->name, __func__, buffer_type);
2079 return 0;
2080 }
2081
2082 rc = mpt3sas_send_diag_release(ioc, buffer_type, &issue_reset);
2083
2084 if (issue_reset)
98c56ad3 2085 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
f92363d1
SR		 2086
2087 return rc;
2088}
2089
2090/**
2091 * _ctl_diag_read_buffer - request for copy of the diag buffer
2092 * @ioc: per adapter object
2093 * @arg - user space buffer containing ioctl content
2094 */
2095static long
2096_ctl_diag_read_buffer(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
2097{
2098 struct mpt3_diag_read_buffer karg;
2099 struct mpt3_diag_read_buffer __user *uarg = arg;
2100 void *request_data, *diag_data;
2101 Mpi2DiagBufferPostRequest_t *mpi_request;
2102 Mpi2DiagBufferPostReply_t *mpi_reply;
2103 int rc, i;
2104 u8 buffer_type;
8bbb1cf6 2105 unsigned long request_size, copy_size;
f92363d1
SR		 2106 u16 smid;
2107 u16 ioc_status;
2108 u8 issue_reset = 0;
2109
2110 if (copy_from_user(&karg, arg, sizeof(karg))) {
2111 pr_err("failure at %s:%d/%s()!\n",
2112 __FILE__, __LINE__, __func__);
2113 return -EFAULT;
2114 }
2115
2116 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
2117 __func__));
2118
2119 buffer_type = karg.unique_id & 0x000000ff;
2120 if (!_ctl_diag_capability(ioc, buffer_type)) {
2121 pr_err(MPT3SAS_FMT
2122 "%s: doesn't have capability for buffer_type(0x%02x)\n",
2123 ioc->name, __func__, buffer_type);
2124 return -EPERM;
2125 }
2126
2127 if (karg.unique_id != ioc->unique_id[buffer_type]) {
2128 pr_err(MPT3SAS_FMT
2129 "%s: unique_id(0x%08x) is not registered\n",
2130 ioc->name, __func__, karg.unique_id);
2131 return -EINVAL;
2132 }
2133
2134 request_data = ioc->diag_buffer[buffer_type];
2135 if (!request_data) {
2136 pr_err(MPT3SAS_FMT
2137 "%s: doesn't have buffer for buffer_type(0x%02x)\n",
2138 ioc->name, __func__, buffer_type);
2139 return -ENOMEM;
2140 }
2141
2142 request_size = ioc->diag_buffer_sz[buffer_type];
2143
2144 if ((karg.starting_offset % 4) || (karg.bytes_to_read % 4)) {
2145 pr_err(MPT3SAS_FMT "%s: either the starting_offset " \
2146 "or bytes_to_read are not 4 byte aligned\n", ioc->name,
2147 __func__);
2148 return -EINVAL;
2149 }
2150
2151 if (karg.starting_offset > request_size)
2152 return -EINVAL;
2153
2154 diag_data = (void *)(request_data + karg.starting_offset);
2155 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2156 "%s: diag_buffer(%p), offset(%d), sz(%d)\n",
2157 ioc->name, __func__,
2158 diag_data, karg.starting_offset, karg.bytes_to_read));
2159
2160 /* Truncate data on requests that are too large */
2161 if ((diag_data + karg.bytes_to_read < diag_data) ||
2162 (diag_data + karg.bytes_to_read > request_data + request_size))
2163 copy_size = request_size - karg.starting_offset;
2164 else
2165 copy_size = karg.bytes_to_read;
2166
2167 if (copy_to_user((void __user *)uarg->diagnostic_data,
2168 diag_data, copy_size)) {
2169 pr_err(MPT3SAS_FMT
2170 "%s: Unable to write mpt_diag_read_buffer_t data @ %p\n",
2171 ioc->name, __func__, diag_data);
2172 return -EFAULT;
2173 }
2174
2175 if ((karg.flags & MPT3_FLAGS_REREGISTER) == 0)
2176 return 0;
2177
2178 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2179 "%s: Reregister buffer_type(0x%02x)\n",
2180 ioc->name, __func__, buffer_type));
2181 if ((ioc->diag_buffer_status[buffer_type] &
2182 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
2183 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2184 "%s: buffer_type(0x%02x) is still registered\n",
2185 ioc->name, __func__, buffer_type));
2186 return 0;
2187 }
2188 /* Get a free request frame and save the message context.
2189 */
2190
2191 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
2192 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
2193 ioc->name, __func__);
2194 rc = -EAGAIN;
2195 goto out;
2196 }
2197
2198 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
2199 if (!smid) {
2200 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
2201 ioc->name, __func__);
2202 rc = -EAGAIN;
2203 goto out;
2204 }
2205
2206 rc = 0;
2207 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
2208 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
2209 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
2210 ioc->ctl_cmds.smid = smid;
2211
2212 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
2213 mpi_request->BufferType = buffer_type;
2214 mpi_request->BufferLength =
2215 cpu_to_le32(ioc->diag_buffer_sz[buffer_type]);
2216 mpi_request->BufferAddress =
2217 cpu_to_le64(ioc->diag_buffer_dma[buffer_type]);
2218 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
2219 mpi_request->ProductSpecific[i] =
2220 cpu_to_le32(ioc->product_specific[buffer_type][i]);
2221 mpi_request->VF_ID = 0; /* TODO */
2222 mpi_request->VP_ID = 0;
2223
2224 init_completion(&ioc->ctl_cmds.done);
81c16f83 2225 ioc->put_smid_default(ioc, smid);
8bbb1cf6 2226 wait_for_completion_timeout(&ioc->ctl_cmds.done,
f92363d1
SR		 2227 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
2228
2229 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
2230 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
2231 __func__);
2232 _debug_dump_mf(mpi_request,
2233 sizeof(Mpi2DiagBufferPostRequest_t)/4);
2234 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
2235 issue_reset = 1;
2236 goto issue_host_reset;
2237 }
2238
2239 /* process the completed Reply Message Frame */
2240 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
2241 pr_err(MPT3SAS_FMT "%s: no reply message\n",
2242 ioc->name, __func__);
2243 rc = -EFAULT;
2244 goto out;
2245 }
2246
2247 mpi_reply = ioc->ctl_cmds.reply;
2248 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
2249
2250 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
2251 ioc->diag_buffer_status[buffer_type] |=
2252 MPT3_DIAG_BUFFER_IS_REGISTERED;
2253 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
2254 ioc->name, __func__));
2255 } else {
2256 pr_info(MPT3SAS_FMT
2257 "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
2258 ioc->name, __func__,
2259 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
2260 rc = -EFAULT;
2261 }
2262
2263 issue_host_reset:
2264 if (issue_reset)
98c56ad3 2265 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
f92363d1
SR		 2266
2267 out:
2268
2269 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
2270 return rc;
2271}
2272
2273
2274
2275#ifdef CONFIG_COMPAT
2276/**
2277 * _ctl_compat_mpt_command - convert 32bit pointers to 64bit.
2278 * @ioc: per adapter object
2279 * @cmd - ioctl opcode
2280 * @arg - (struct mpt3_ioctl_command32)
2281 *
2282 * MPT3COMMAND32 - Handle 32bit applications running on 64bit os.
2283 */
2284static long
2285_ctl_compat_mpt_command(struct MPT3SAS_ADAPTER *ioc, unsigned cmd,
2286 void __user *arg)
2287{
2288 struct mpt3_ioctl_command32 karg32;
2289 struct mpt3_ioctl_command32 __user *uarg;
2290 struct mpt3_ioctl_command karg;
2291
2292 if (_IOC_SIZE(cmd) != sizeof(struct mpt3_ioctl_command32))
2293 return -EINVAL;
2294
2295 uarg = (struct mpt3_ioctl_command32 __user *) arg;
2296
2297 if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32))) {
2298 pr_err("failure at %s:%d/%s()!\n",
2299 __FILE__, __LINE__, __func__);
2300 return -EFAULT;
2301 }
2302
2303 memset(&karg, 0, sizeof(struct mpt3_ioctl_command));
2304 karg.hdr.ioc_number = karg32.hdr.ioc_number;
2305 karg.hdr.port_number = karg32.hdr.port_number;
2306 karg.hdr.max_data_size = karg32.hdr.max_data_size;
2307 karg.timeout = karg32.timeout;
2308 karg.max_reply_bytes = karg32.max_reply_bytes;
2309 karg.data_in_size = karg32.data_in_size;
2310 karg.data_out_size = karg32.data_out_size;
2311 karg.max_sense_bytes = karg32.max_sense_bytes;
2312 karg.data_sge_offset = karg32.data_sge_offset;
2313 karg.reply_frame_buf_ptr = compat_ptr(karg32.reply_frame_buf_ptr);
2314 karg.data_in_buf_ptr = compat_ptr(karg32.data_in_buf_ptr);
2315 karg.data_out_buf_ptr = compat_ptr(karg32.data_out_buf_ptr);
2316 karg.sense_data_ptr = compat_ptr(karg32.sense_data_ptr);
2317 return _ctl_do_mpt_command(ioc, karg, &uarg->mf);
2318}
2319#endif
2320
2321/**
2322 * _ctl_ioctl_main - main ioctl entry point
2323 * @file - (struct file)
2324 * @cmd - ioctl opcode
c84b06a4
SR		 2325 * @arg - user space data buffer
2326 * @compat - handles 32 bit applications in 64bit os
2327 * @mpi_version: will be MPI2_VERSION for mpt2ctl ioctl device &
b130b0d5 2328 * MPI25_VERSION | MPI26_VERSION for mpt3ctl ioctl device.
f92363d1
SR		 2329 */
2330static long
2331_ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg,
c84b06a4 2332 u8 compat, u16 mpi_version)
f92363d1
SR		 2333{
2334 struct MPT3SAS_ADAPTER *ioc;
2335 struct mpt3_ioctl_header ioctl_header;
2336 enum block_state state;
2337 long ret = -EINVAL;
2338
2339 /* get IOCTL header */
2340 if (copy_from_user(&ioctl_header, (char __user *)arg,
2341 sizeof(struct mpt3_ioctl_header))) {
2342 pr_err("failure at %s:%d/%s()!\n",
2343 __FILE__, __LINE__, __func__);
2344 return -EFAULT;
2345 }
2346
c84b06a4
SR		 2347 if (_ctl_verify_adapter(ioctl_header.ioc_number,
2348 &ioc, mpi_version) == -1 || !ioc)
f92363d1
SR		 2349 return -ENODEV;
2350
08c4d550
SR		 2351 /* pci_access_mutex lock acquired by ioctl path */
2352 mutex_lock(&ioc->pci_access_mutex);
2353
f92363d1 2354 if (ioc->shost_recovery || ioc->pci_error_recovery ||
08c4d550
SR		 2355 ioc->is_driver_loading || ioc->remove_host) {
2356 ret = -EAGAIN;
2357 goto out_unlock_pciaccess;
2358 }
f92363d1
SR		 2359
2360 state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING;
2361 if (state == NON_BLOCKING) {
08c4d550
SR		 2362 if (!mutex_trylock(&ioc->ctl_cmds.mutex)) {
2363 ret = -EAGAIN;
2364 goto out_unlock_pciaccess;
2365 }
2366 } else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) {
2367 ret = -ERESTARTSYS;
2368 goto out_unlock_pciaccess;
2369 }
f92363d1
SR		 2370
2371
2372 switch (cmd) {
2373 case MPT3IOCINFO:
2374 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_iocinfo))
2375 ret = _ctl_getiocinfo(ioc, arg);
2376 break;
2377#ifdef CONFIG_COMPAT
2378 case MPT3COMMAND32:
2379#endif
2380 case MPT3COMMAND:
2381 {
2382 struct mpt3_ioctl_command __user *uarg;
2383 struct mpt3_ioctl_command karg;
2384
2385#ifdef CONFIG_COMPAT
2386 if (compat) {
2387 ret = _ctl_compat_mpt_command(ioc, cmd, arg);
2388 break;
2389 }
2390#endif
2391 if (copy_from_user(&karg, arg, sizeof(karg))) {
2392 pr_err("failure at %s:%d/%s()!\n",
2393 __FILE__, __LINE__, __func__);
2394 ret = -EFAULT;
2395 break;
2396 }
2397
2398 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_command)) {
2399 uarg = arg;
2400 ret = _ctl_do_mpt_command(ioc, karg, &uarg->mf);
2401 }
2402 break;
2403 }
2404 case MPT3EVENTQUERY:
2405 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventquery))
2406 ret = _ctl_eventquery(ioc, arg);
2407 break;
2408 case MPT3EVENTENABLE:
2409 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventenable))
2410 ret = _ctl_eventenable(ioc, arg);
2411 break;
2412 case MPT3EVENTREPORT:
2413 ret = _ctl_eventreport(ioc, arg);
2414 break;
2415 case MPT3HARDRESET:
2416 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_diag_reset))
2417 ret = _ctl_do_reset(ioc, arg);
2418 break;
2419 case MPT3BTDHMAPPING:
2420 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_btdh_mapping))
2421 ret = _ctl_btdh_mapping(ioc, arg);
2422 break;
2423 case MPT3DIAGREGISTER:
2424 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_register))
2425 ret = _ctl_diag_register(ioc, arg);
2426 break;
2427 case MPT3DIAGUNREGISTER:
2428 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_unregister))
2429 ret = _ctl_diag_unregister(ioc, arg);
2430 break;
2431 case MPT3DIAGQUERY:
2432 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_query))
2433 ret = _ctl_diag_query(ioc, arg);
2434 break;
2435 case MPT3DIAGRELEASE:
2436 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_release))
2437 ret = _ctl_diag_release(ioc, arg);
2438 break;
2439 case MPT3DIAGREADBUFFER:
2440 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_read_buffer))
2441 ret = _ctl_diag_read_buffer(ioc, arg);
2442 break;
2443 default:
2444 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2445 "unsupported ioctl opcode(0x%08x)\n", ioc->name, cmd));
2446 break;
2447 }
2448
2449 mutex_unlock(&ioc->ctl_cmds.mutex);
08c4d550
SR		 2450out_unlock_pciaccess:
2451 mutex_unlock(&ioc->pci_access_mutex);
f92363d1
SR		 2452 return ret;
2453}
2454
2455/**
c84b06a4 2456 * _ctl_ioctl - mpt3ctl main ioctl entry point (unlocked)
f92363d1
SR		 2457 * @file - (struct file)
2458 * @cmd - ioctl opcode
2459 * @arg -
2460 */
8bbb1cf6 2461static long
c84b06a4 2462_ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
f92363d1
SR		 2463{
2464 long ret;
2465
b130b0d5
SS		 2466 /* pass MPI25_VERSION | MPI26_VERSION value,
2467 * to indicate that this ioctl cmd
c84b06a4
SR		 2468 * came from mpt3ctl ioctl device.
2469 */
b130b0d5
SS		 2470 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0,
2471 MPI25_VERSION | MPI26_VERSION);
f92363d1
SR		 2472 return ret;
2473}
2474
c84b06a4
SR		 2475/**
2476 * _ctl_mpt2_ioctl - mpt2ctl main ioctl entry point (unlocked)
2477 * @file - (struct file)
2478 * @cmd - ioctl opcode
2479 * @arg -
2480 */
8bbb1cf6 2481static long
c84b06a4
SR		 2482_ctl_mpt2_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2483{
2484 long ret;
2485
2486 /* pass MPI2_VERSION value, to indicate that this ioctl cmd
2487 * came from mpt2ctl ioctl device.
2488 */
2489 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0, MPI2_VERSION);
2490 return ret;
2491}
f92363d1
SR		 2492#ifdef CONFIG_COMPAT
2493/**
c84b06a4 2494 *_ ctl_ioctl_compat - main ioctl entry point (compat)
f92363d1
SR		 2495 * @file -
2496 * @cmd -
2497 * @arg -
2498 *
2499 * This routine handles 32 bit applications in 64bit os.
2500 */
8bbb1cf6 2501static long
c84b06a4 2502_ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
f92363d1
SR		 2503{
2504 long ret;
2505
b130b0d5
SS		 2506 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1,
2507 MPI25_VERSION | MPI26_VERSION);
c84b06a4
SR		 2508 return ret;
2509}
2510
2511/**
2512 *_ ctl_mpt2_ioctl_compat - main ioctl entry point (compat)
2513 * @file -
2514 * @cmd -
2515 * @arg -
2516 *
2517 * This routine handles 32 bit applications in 64bit os.
2518 */
8bbb1cf6 2519static long
c84b06a4
SR		 2520_ctl_mpt2_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
2521{
2522 long ret;
2523
2524 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1, MPI2_VERSION);
f92363d1
SR		 2525 return ret;
2526}
2527#endif
2528
2529/* scsi host attributes */
2530/**
2531 * _ctl_version_fw_show - firmware version
2532 * @cdev - pointer to embedded class device
2533 * @buf - the buffer returned
2534 *
2535 * A sysfs 'read-only' shost attribute.
2536 */
2537static ssize_t
2538_ctl_version_fw_show(struct device *cdev, struct device_attribute *attr,
2539 char *buf)
2540{
2541 struct Scsi_Host *shost = class_to_shost(cdev);
2542 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2543
2544 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2545 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
2546 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
2547 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
2548 ioc->facts.FWVersion.Word & 0x000000FF);
2549}
2550static DEVICE_ATTR(version_fw, S_IRUGO, _ctl_version_fw_show, NULL);
2551
2552/**
2553 * _ctl_version_bios_show - bios version
2554 * @cdev - pointer to embedded class device
2555 * @buf - the buffer returned
2556 *
2557 * A sysfs 'read-only' shost attribute.
2558 */
2559static ssize_t
2560_ctl_version_bios_show(struct device *cdev, struct device_attribute *attr,
2561 char *buf)
2562{
2563 struct Scsi_Host *shost = class_to_shost(cdev);
2564 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2565
2566 u32 version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
2567
2568 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2569 (version & 0xFF000000) >> 24,
2570 (version & 0x00FF0000) >> 16,
2571 (version & 0x0000FF00) >> 8,
2572 version & 0x000000FF);
2573}
2574static DEVICE_ATTR(version_bios, S_IRUGO, _ctl_version_bios_show, NULL);
2575
2576/**
2577 * _ctl_version_mpi_show - MPI (message passing interface) version
2578 * @cdev - pointer to embedded class device
2579 * @buf - the buffer returned
2580 *
2581 * A sysfs 'read-only' shost attribute.
2582 */
2583static ssize_t
2584_ctl_version_mpi_show(struct device *cdev, struct device_attribute *attr,
2585 char *buf)
2586{
2587 struct Scsi_Host *shost = class_to_shost(cdev);
2588 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2589
2590 return snprintf(buf, PAGE_SIZE, "%03x.%02x\n",
2591 ioc->facts.MsgVersion, ioc->facts.HeaderVersion >> 8);
2592}
2593static DEVICE_ATTR(version_mpi, S_IRUGO, _ctl_version_mpi_show, NULL);
2594
2595/**
2596 * _ctl_version_product_show - product name
2597 * @cdev - pointer to embedded class device
2598 * @buf - the buffer returned
2599 *
2600 * A sysfs 'read-only' shost attribute.
2601 */
2602static ssize_t
2603_ctl_version_product_show(struct device *cdev, struct device_attribute *attr,
2604 char *buf)
2605{
2606 struct Scsi_Host *shost = class_to_shost(cdev);
2607 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2608
2609 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.ChipName);
2610}
2611static DEVICE_ATTR(version_product, S_IRUGO, _ctl_version_product_show, NULL);
2612
2613/**
2614 * _ctl_version_nvdata_persistent_show - ndvata persistent version
2615 * @cdev - pointer to embedded class device
2616 * @buf - the buffer returned
2617 *
2618 * A sysfs 'read-only' shost attribute.
2619 */
2620static ssize_t
2621_ctl_version_nvdata_persistent_show(struct device *cdev,
2622 struct device_attribute *attr, char *buf)
2623{
2624 struct Scsi_Host *shost = class_to_shost(cdev);
2625 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2626
2627 return snprintf(buf, PAGE_SIZE, "%08xh\n",
2628 le32_to_cpu(ioc->iounit_pg0.NvdataVersionPersistent.Word));
2629}
2630static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
2631 _ctl_version_nvdata_persistent_show, NULL);
2632
2633/**
2634 * _ctl_version_nvdata_default_show - nvdata default version
2635 * @cdev - pointer to embedded class device
2636 * @buf - the buffer returned
2637 *
2638 * A sysfs 'read-only' shost attribute.
2639 */
2640static ssize_t
2641_ctl_version_nvdata_default_show(struct device *cdev, struct device_attribute
2642 *attr, char *buf)
2643{
2644 struct Scsi_Host *shost = class_to_shost(cdev);
2645 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2646
2647 return snprintf(buf, PAGE_SIZE, "%08xh\n",
2648 le32_to_cpu(ioc->iounit_pg0.NvdataVersionDefault.Word));
2649}
2650static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
2651 _ctl_version_nvdata_default_show, NULL);
2652
2653/**
2654 * _ctl_board_name_show - board name
2655 * @cdev - pointer to embedded class device
2656 * @buf - the buffer returned
2657 *
2658 * A sysfs 'read-only' shost attribute.
2659 */
2660static ssize_t
2661_ctl_board_name_show(struct device *cdev, struct device_attribute *attr,
2662 char *buf)
2663{
2664 struct Scsi_Host *shost = class_to_shost(cdev);
2665 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2666
2667 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardName);
2668}
2669static DEVICE_ATTR(board_name, S_IRUGO, _ctl_board_name_show, NULL);
2670
2671/**
2672 * _ctl_board_assembly_show - board assembly name
2673 * @cdev - pointer to embedded class device
2674 * @buf - the buffer returned
2675 *
2676 * A sysfs 'read-only' shost attribute.
2677 */
2678static ssize_t
2679_ctl_board_assembly_show(struct device *cdev, struct device_attribute *attr,
2680 char *buf)
2681{
2682 struct Scsi_Host *shost = class_to_shost(cdev);
2683 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2684
2685 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardAssembly);
2686}
2687static DEVICE_ATTR(board_assembly, S_IRUGO, _ctl_board_assembly_show, NULL);
2688
2689/**
2690 * _ctl_board_tracer_show - board tracer number
2691 * @cdev - pointer to embedded class device
2692 * @buf - the buffer returned
2693 *
2694 * A sysfs 'read-only' shost attribute.
2695 */
2696static ssize_t
2697_ctl_board_tracer_show(struct device *cdev, struct device_attribute *attr,
2698 char *buf)
2699{
2700 struct Scsi_Host *shost = class_to_shost(cdev);
2701 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2702
2703 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardTracerNumber);
2704}
2705static DEVICE_ATTR(board_tracer, S_IRUGO, _ctl_board_tracer_show, NULL);
2706
2707/**
2708 * _ctl_io_delay_show - io missing delay
2709 * @cdev - pointer to embedded class device
2710 * @buf - the buffer returned
2711 *
2712 * This is for firmware implemention for deboucing device
2713 * removal events.
2714 *
2715 * A sysfs 'read-only' shost attribute.
2716 */
2717static ssize_t
2718_ctl_io_delay_show(struct device *cdev, struct device_attribute *attr,
2719 char *buf)
2720{
2721 struct Scsi_Host *shost = class_to_shost(cdev);
2722 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2723
2724 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
2725}
2726static DEVICE_ATTR(io_delay, S_IRUGO, _ctl_io_delay_show, NULL);
2727
2728/**
2729 * _ctl_device_delay_show - device missing delay
2730 * @cdev - pointer to embedded class device
2731 * @buf - the buffer returned
2732 *
2733 * This is for firmware implemention for deboucing device
2734 * removal events.
2735 *
2736 * A sysfs 'read-only' shost attribute.
2737 */
2738static ssize_t
2739_ctl_device_delay_show(struct device *cdev, struct device_attribute *attr,
2740 char *buf)
2741{
2742 struct Scsi_Host *shost = class_to_shost(cdev);
2743 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2744
2745 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
2746}
2747static DEVICE_ATTR(device_delay, S_IRUGO, _ctl_device_delay_show, NULL);
2748
2749/**
2750 * _ctl_fw_queue_depth_show - global credits
2751 * @cdev - pointer to embedded class device
2752 * @buf - the buffer returned
2753 *
2754 * This is firmware queue depth limit
2755 *
2756 * A sysfs 'read-only' shost attribute.
2757 */
2758static ssize_t
2759_ctl_fw_queue_depth_show(struct device *cdev, struct device_attribute *attr,
2760 char *buf)
2761{
2762 struct Scsi_Host *shost = class_to_shost(cdev);
2763 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2764
2765 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->facts.RequestCredit);
2766}
2767static DEVICE_ATTR(fw_queue_depth, S_IRUGO, _ctl_fw_queue_depth_show, NULL);
2768
2769/**
2770 * _ctl_sas_address_show - sas address
2771 * @cdev - pointer to embedded class device
2772 * @buf - the buffer returned
2773 *
2774 * This is the controller sas address
2775 *
2776 * A sysfs 'read-only' shost attribute.
2777 */
2778static ssize_t
2779_ctl_host_sas_address_show(struct device *cdev, struct device_attribute *attr,
2780 char *buf)
2781
2782{
2783 struct Scsi_Host *shost = class_to_shost(cdev);
2784 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2785
2786 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
2787 (unsigned long long)ioc->sas_hba.sas_address);
2788}
2789static DEVICE_ATTR(host_sas_address, S_IRUGO,
2790 _ctl_host_sas_address_show, NULL);
2791
2792/**
2793 * _ctl_logging_level_show - logging level
2794 * @cdev - pointer to embedded class device
2795 * @buf - the buffer returned
2796 *
2797 * A sysfs 'read/write' shost attribute.
2798 */
2799static ssize_t
2800_ctl_logging_level_show(struct device *cdev, struct device_attribute *attr,
2801 char *buf)
2802{
2803 struct Scsi_Host *shost = class_to_shost(cdev);
2804 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2805
2806 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->logging_level);
2807}
2808static ssize_t
2809_ctl_logging_level_store(struct device *cdev, struct device_attribute *attr,
2810 const char *buf, size_t count)
2811{
2812 struct Scsi_Host *shost = class_to_shost(cdev);
2813 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2814 int val = 0;
2815
2816 if (sscanf(buf, "%x", &val) != 1)
2817 return -EINVAL;
2818
2819 ioc->logging_level = val;
2820 pr_info(MPT3SAS_FMT "logging_level=%08xh\n", ioc->name,
2821 ioc->logging_level);
2822 return strlen(buf);
2823}
2824static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR, _ctl_logging_level_show,
2825 _ctl_logging_level_store);
2826
2827/**
2828 * _ctl_fwfault_debug_show - show/store fwfault_debug
2829 * @cdev - pointer to embedded class device
2830 * @buf - the buffer returned
2831 *
2832 * mpt3sas_fwfault_debug is command line option
2833 * A sysfs 'read/write' shost attribute.
2834 */
2835static ssize_t
2836_ctl_fwfault_debug_show(struct device *cdev, struct device_attribute *attr,
2837 char *buf)
2838{
2839 struct Scsi_Host *shost = class_to_shost(cdev);
2840 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2841
2842 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->fwfault_debug);
2843}
2844static ssize_t
2845_ctl_fwfault_debug_store(struct device *cdev, struct device_attribute *attr,
2846 const char *buf, size_t count)
2847{
2848 struct Scsi_Host *shost = class_to_shost(cdev);
2849 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2850 int val = 0;
2851
2852 if (sscanf(buf, "%d", &val) != 1)
2853 return -EINVAL;
2854
2855 ioc->fwfault_debug = val;
2856 pr_info(MPT3SAS_FMT "fwfault_debug=%d\n", ioc->name,
2857 ioc->fwfault_debug);
2858 return strlen(buf);
2859}
2860static DEVICE_ATTR(fwfault_debug, S_IRUGO | S_IWUSR,
2861 _ctl_fwfault_debug_show, _ctl_fwfault_debug_store);
2862
2863/**
2864 * _ctl_ioc_reset_count_show - ioc reset count
2865 * @cdev - pointer to embedded class device
2866 * @buf - the buffer returned
2867 *
2868 * This is firmware queue depth limit
2869 *
2870 * A sysfs 'read-only' shost attribute.
2871 */
2872static ssize_t
2873_ctl_ioc_reset_count_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, "%d\n", ioc->ioc_reset_count);
2880}
2881static DEVICE_ATTR(ioc_reset_count, S_IRUGO, _ctl_ioc_reset_count_show, NULL);
2882
2883/**
2884 * _ctl_ioc_reply_queue_count_show - number of reply queues
2885 * @cdev - pointer to embedded class device
2886 * @buf - the buffer returned
2887 *
2888 * This is number of reply queues
2889 *
2890 * A sysfs 'read-only' shost attribute.
2891 */
2892static ssize_t
2893_ctl_ioc_reply_queue_count_show(struct device *cdev,
2894 struct device_attribute *attr, char *buf)
2895{
2896 u8 reply_queue_count;
2897 struct Scsi_Host *shost = class_to_shost(cdev);
2898 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2899
2900 if ((ioc->facts.IOCCapabilities &
2901 MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX) && ioc->msix_enable)
2902 reply_queue_count = ioc->reply_queue_count;
2903 else
2904 reply_queue_count = 1;
2905
2906 return snprintf(buf, PAGE_SIZE, "%d\n", reply_queue_count);
2907}
2908static DEVICE_ATTR(reply_queue_count, S_IRUGO, _ctl_ioc_reply_queue_count_show,
2909 NULL);
2910
42263095
SR		 2911/**
2912 * _ctl_BRM_status_show - Backup Rail Monitor Status
2913 * @cdev - pointer to embedded class device
2914 * @buf - the buffer returned
2915 *
2916 * This is number of reply queues
2917 *
2918 * A sysfs 'read-only' shost attribute.
2919 */
2920static ssize_t
2921_ctl_BRM_status_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 Mpi2IOUnitPage3_t *io_unit_pg3 = NULL;
2927 Mpi2ConfigReply_t mpi_reply;
2928 u16 backup_rail_monitor_status = 0;
2929 u16 ioc_status;
2930 int sz;
2931 ssize_t rc = 0;
2932
2933 if (!ioc->is_warpdrive) {
2934 pr_err(MPT3SAS_FMT "%s: BRM attribute is only for"
2935 " warpdrive\n", ioc->name, __func__);
2936 goto out;
2937 }
08c4d550
SR		 2938 /* pci_access_mutex lock acquired by sysfs show path */
2939 mutex_lock(&ioc->pci_access_mutex);
2940 if (ioc->pci_error_recovery || ioc->remove_host) {
2941 mutex_unlock(&ioc->pci_access_mutex);
2942 return 0;
2943 }
42263095
SR		 2944
2945 /* allocate upto GPIOVal 36 entries */
2946 sz = offsetof(Mpi2IOUnitPage3_t, GPIOVal) + (sizeof(u16) * 36);
2947 io_unit_pg3 = kzalloc(sz, GFP_KERNEL);
2948 if (!io_unit_pg3) {
2949 pr_err(MPT3SAS_FMT "%s: failed allocating memory "
2950 "for iounit_pg3: (%d) bytes\n", ioc->name, __func__, sz);
2951 goto out;
2952 }
2953
2954 if (mpt3sas_config_get_iounit_pg3(ioc, &mpi_reply, io_unit_pg3, sz) !=
2955 0) {
2956 pr_err(MPT3SAS_FMT
2957 "%s: failed reading iounit_pg3\n", ioc->name,
2958 __func__);
2959 goto out;
2960 }
2961
2962 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
2963 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
2964 pr_err(MPT3SAS_FMT "%s: iounit_pg3 failed with "
2965 "ioc_status(0x%04x)\n", ioc->name, __func__, ioc_status);
2966 goto out;
2967 }
2968
2969 if (io_unit_pg3->GPIOCount < 25) {
2970 pr_err(MPT3SAS_FMT "%s: iounit_pg3->GPIOCount less than "
2971 "25 entries, detected (%d) entries\n", ioc->name, __func__,
2972 io_unit_pg3->GPIOCount);
2973 goto out;
2974 }
2975
2976 /* BRM status is in bit zero of GPIOVal[24] */
2977 backup_rail_monitor_status = le16_to_cpu(io_unit_pg3->GPIOVal[24]);
2978 rc = snprintf(buf, PAGE_SIZE, "%d\n", (backup_rail_monitor_status & 1));
2979
2980 out:
2981 kfree(io_unit_pg3);
08c4d550 2982 mutex_unlock(&ioc->pci_access_mutex);
42263095
SR		 2983 return rc;
2984}
2985static DEVICE_ATTR(BRM_status, S_IRUGO, _ctl_BRM_status_show, NULL);
42263095 2986
f92363d1
SR		 2987struct DIAG_BUFFER_START {
2988 __le32 Size;
2989 __le32 DiagVersion;
2990 u8 BufferType;
2991 u8 Reserved[3];
2992 __le32 Reserved1;
2993 __le32 Reserved2;
2994 __le32 Reserved3;
2995};
2996
2997/**
2998 * _ctl_host_trace_buffer_size_show - host buffer size (trace only)
2999 * @cdev - pointer to embedded class device
3000 * @buf - the buffer returned
3001 *
3002 * A sysfs 'read-only' shost attribute.
3003 */
3004static ssize_t
3005_ctl_host_trace_buffer_size_show(struct device *cdev,
3006 struct device_attribute *attr, char *buf)
3007{
3008 struct Scsi_Host *shost = class_to_shost(cdev);
3009 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3010 u32 size = 0;
3011 struct DIAG_BUFFER_START *request_data;
3012
3013 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
3014 pr_err(MPT3SAS_FMT
3015 "%s: host_trace_buffer is not registered\n",
3016 ioc->name, __func__);
3017 return 0;
3018 }
3019
3020 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3021 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
3022 pr_err(MPT3SAS_FMT
3023 "%s: host_trace_buffer is not registered\n",
3024 ioc->name, __func__);
3025 return 0;
3026 }
3027
3028 request_data = (struct DIAG_BUFFER_START *)
3029 ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE];
3030 if ((le32_to_cpu(request_data->DiagVersion) == 0x00000000 ||
3031 le32_to_cpu(request_data->DiagVersion) == 0x01000000 ||
3032 le32_to_cpu(request_data->DiagVersion) == 0x01010000) &&
3033 le32_to_cpu(request_data->Reserved3) == 0x4742444c)
3034 size = le32_to_cpu(request_data->Size);
3035
3036 ioc->ring_buffer_sz = size;
3037 return snprintf(buf, PAGE_SIZE, "%d\n", size);
3038}
3039static DEVICE_ATTR(host_trace_buffer_size, S_IRUGO,
3040 _ctl_host_trace_buffer_size_show, NULL);
3041
3042/**
3043 * _ctl_host_trace_buffer_show - firmware ring buffer (trace only)
3044 * @cdev - pointer to embedded class device
3045 * @buf - the buffer returned
3046 *
3047 * A sysfs 'read/write' shost attribute.
3048 *
3049 * You will only be able to read 4k bytes of ring buffer at a time.
3050 * In order to read beyond 4k bytes, you will have to write out the
3051 * offset to the same attribute, it will move the pointer.
3052 */
3053static ssize_t
3054_ctl_host_trace_buffer_show(struct device *cdev, struct device_attribute *attr,
3055 char *buf)
3056{
3057 struct Scsi_Host *shost = class_to_shost(cdev);
3058 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3059 void *request_data;
3060 u32 size;
3061
3062 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
3063 pr_err(MPT3SAS_FMT
3064 "%s: host_trace_buffer is not registered\n",
3065 ioc->name, __func__);
3066 return 0;
3067 }
3068
3069 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3070 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
3071 pr_err(MPT3SAS_FMT
3072 "%s: host_trace_buffer is not registered\n",
3073 ioc->name, __func__);
3074 return 0;
3075 }
3076
3077 if (ioc->ring_buffer_offset > ioc->ring_buffer_sz)
3078 return 0;
3079
3080 size = ioc->ring_buffer_sz - ioc->ring_buffer_offset;
3081 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size;
3082 request_data = ioc->diag_buffer[0] + ioc->ring_buffer_offset;
3083 memcpy(buf, request_data, size);
3084 return size;
3085}
3086
3087static ssize_t
3088_ctl_host_trace_buffer_store(struct device *cdev, struct device_attribute *attr,
3089 const char *buf, size_t count)
3090{
3091 struct Scsi_Host *shost = class_to_shost(cdev);
3092 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3093 int val = 0;
3094
3095 if (sscanf(buf, "%d", &val) != 1)
3096 return -EINVAL;
3097
3098 ioc->ring_buffer_offset = val;
3099 return strlen(buf);
3100}
3101static DEVICE_ATTR(host_trace_buffer, S_IRUGO | S_IWUSR,
3102 _ctl_host_trace_buffer_show, _ctl_host_trace_buffer_store);
3103
3104
3105/*****************************************/
3106
3107/**
3108 * _ctl_host_trace_buffer_enable_show - firmware ring buffer (trace only)
3109 * @cdev - pointer to embedded class device
3110 * @buf - the buffer returned
3111 *
3112 * A sysfs 'read/write' shost attribute.
3113 *
3114 * This is a mechnism to post/release host_trace_buffers
3115 */
3116static ssize_t
3117_ctl_host_trace_buffer_enable_show(struct device *cdev,
3118 struct device_attribute *attr, char *buf)
3119{
3120 struct Scsi_Host *shost = class_to_shost(cdev);
3121 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3122
3123 if ((!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) ||
3124 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3125 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0))
3126 return snprintf(buf, PAGE_SIZE, "off\n");
3127 else if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3128 MPT3_DIAG_BUFFER_IS_RELEASED))
3129 return snprintf(buf, PAGE_SIZE, "release\n");
3130 else
3131 return snprintf(buf, PAGE_SIZE, "post\n");
3132}
3133
3134static ssize_t
3135_ctl_host_trace_buffer_enable_store(struct device *cdev,
3136 struct device_attribute *attr, const char *buf, size_t count)
3137{
3138 struct Scsi_Host *shost = class_to_shost(cdev);
3139 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3140 char str[10] = "";
3141 struct mpt3_diag_register diag_register;
3142 u8 issue_reset = 0;
3143
3144 /* don't allow post/release occurr while recovery is active */
3145 if (ioc->shost_recovery || ioc->remove_host ||
3146 ioc->pci_error_recovery || ioc->is_driver_loading)
3147 return -EBUSY;
3148
3149 if (sscanf(buf, "%9s", str) != 1)
3150 return -EINVAL;
3151
3152 if (!strcmp(str, "post")) {
3153 /* exit out if host buffers are already posted */
3154 if ((ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) &&
3155 (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3156 MPT3_DIAG_BUFFER_IS_REGISTERED) &&
3157 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3158 MPT3_DIAG_BUFFER_IS_RELEASED) == 0))
3159 goto out;
3160 memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
3161 pr_info(MPT3SAS_FMT "posting host trace buffers\n",
3162 ioc->name);
3163 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
3164 diag_register.requested_buffer_size = (1024 * 1024);
3165 diag_register.unique_id = 0x7075900;
3166 ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] = 0;
3167 _ctl_diag_register_2(ioc, &diag_register);
3168 } else if (!strcmp(str, "release")) {
3169 /* exit out if host buffers are already released */
3170 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE])
3171 goto out;
3172 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3173 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0)
3174 goto out;
3175 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3176 MPT3_DIAG_BUFFER_IS_RELEASED))
3177 goto out;
3178 pr_info(MPT3SAS_FMT "releasing host trace buffer\n",
3179 ioc->name);
3180 mpt3sas_send_diag_release(ioc, MPI2_DIAG_BUF_TYPE_TRACE,
3181 &issue_reset);
3182 }
3183
3184 out:
3185 return strlen(buf);
3186}
3187static DEVICE_ATTR(host_trace_buffer_enable, S_IRUGO | S_IWUSR,
3188 _ctl_host_trace_buffer_enable_show,
3189 _ctl_host_trace_buffer_enable_store);
3190
3191/*********** diagnostic trigger suppport *********************************/
3192
3193/**
3194 * _ctl_diag_trigger_master_show - show the diag_trigger_master attribute
3195 * @cdev - pointer to embedded class device
3196 * @buf - the buffer returned
3197 *
3198 * A sysfs 'read/write' shost attribute.
3199 */
3200static ssize_t
3201_ctl_diag_trigger_master_show(struct device *cdev,
3202 struct device_attribute *attr, char *buf)
3203
3204{
3205 struct Scsi_Host *shost = class_to_shost(cdev);
3206 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3207 unsigned long flags;
3208 ssize_t rc;
3209
3210 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3211 rc = sizeof(struct SL_WH_MASTER_TRIGGER_T);
3212 memcpy(buf, &ioc->diag_trigger_master, rc);
3213 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3214 return rc;
3215}
3216
3217/**
3218 * _ctl_diag_trigger_master_store - store the diag_trigger_master attribute
3219 * @cdev - pointer to embedded class device
3220 * @buf - the buffer returned
3221 *
3222 * A sysfs 'read/write' shost attribute.
3223 */
3224static ssize_t
3225_ctl_diag_trigger_master_store(struct device *cdev,
3226 struct device_attribute *attr, const char *buf, size_t count)
3227
3228{
3229 struct Scsi_Host *shost = class_to_shost(cdev);
3230 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3231 unsigned long flags;
3232 ssize_t rc;
3233
3234 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3235 rc = min(sizeof(struct SL_WH_MASTER_TRIGGER_T), count);
3236 memset(&ioc->diag_trigger_master, 0,
3237 sizeof(struct SL_WH_MASTER_TRIGGER_T));
3238 memcpy(&ioc->diag_trigger_master, buf, rc);
3239 ioc->diag_trigger_master.MasterData |=
3240 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
3241 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3242 return rc;
3243}
3244static DEVICE_ATTR(diag_trigger_master, S_IRUGO | S_IWUSR,
3245 _ctl_diag_trigger_master_show, _ctl_diag_trigger_master_store);
3246
3247
3248/**
3249 * _ctl_diag_trigger_event_show - show the diag_trigger_event attribute
3250 * @cdev - pointer to embedded class device
3251 * @buf - the buffer returned
3252 *
3253 * A sysfs 'read/write' shost attribute.
3254 */
3255static ssize_t
3256_ctl_diag_trigger_event_show(struct device *cdev,
3257 struct device_attribute *attr, char *buf)
3258{
3259 struct Scsi_Host *shost = class_to_shost(cdev);
3260 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3261 unsigned long flags;
3262 ssize_t rc;
3263
3264 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3265 rc = sizeof(struct SL_WH_EVENT_TRIGGERS_T);
3266 memcpy(buf, &ioc->diag_trigger_event, rc);
3267 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3268 return rc;
3269}
3270
3271/**
3272 * _ctl_diag_trigger_event_store - store the diag_trigger_event attribute
3273 * @cdev - pointer to embedded class device
3274 * @buf - the buffer returned
3275 *
3276 * A sysfs 'read/write' shost attribute.
3277 */
3278static ssize_t
3279_ctl_diag_trigger_event_store(struct device *cdev,
3280 struct device_attribute *attr, const char *buf, size_t count)
3281
3282{
3283 struct Scsi_Host *shost = class_to_shost(cdev);
3284 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3285 unsigned long flags;
3286 ssize_t sz;
3287
3288 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3289 sz = min(sizeof(struct SL_WH_EVENT_TRIGGERS_T), count);
3290 memset(&ioc->diag_trigger_event, 0,
3291 sizeof(struct SL_WH_EVENT_TRIGGERS_T));
3292 memcpy(&ioc->diag_trigger_event, buf, sz);
3293 if (ioc->diag_trigger_event.ValidEntries > NUM_VALID_ENTRIES)
3294 ioc->diag_trigger_event.ValidEntries = NUM_VALID_ENTRIES;
3295 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3296 return sz;
3297}
3298static DEVICE_ATTR(diag_trigger_event, S_IRUGO | S_IWUSR,
3299 _ctl_diag_trigger_event_show, _ctl_diag_trigger_event_store);
3300
3301
3302/**
3303 * _ctl_diag_trigger_scsi_show - show the diag_trigger_scsi attribute
3304 * @cdev - pointer to embedded class device
3305 * @buf - the buffer returned
3306 *
3307 * A sysfs 'read/write' shost attribute.
3308 */
3309static ssize_t
3310_ctl_diag_trigger_scsi_show(struct device *cdev,
3311 struct device_attribute *attr, char *buf)
3312{
3313 struct Scsi_Host *shost = class_to_shost(cdev);
3314 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3315 unsigned long flags;
3316 ssize_t rc;
3317
3318 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3319 rc = sizeof(struct SL_WH_SCSI_TRIGGERS_T);
3320 memcpy(buf, &ioc->diag_trigger_scsi, rc);
3321 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3322 return rc;
3323}
3324
3325/**
3326 * _ctl_diag_trigger_scsi_store - store the diag_trigger_scsi attribute
3327 * @cdev - pointer to embedded class device
3328 * @buf - the buffer returned
3329 *
3330 * A sysfs 'read/write' shost attribute.
3331 */
3332static ssize_t
3333_ctl_diag_trigger_scsi_store(struct device *cdev,
3334 struct device_attribute *attr, const char *buf, size_t count)
3335{
3336 struct Scsi_Host *shost = class_to_shost(cdev);
3337 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3338 unsigned long flags;
3339 ssize_t sz;
3340
3341 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3342 sz = min(sizeof(struct SL_WH_SCSI_TRIGGERS_T), count);
3343 memset(&ioc->diag_trigger_scsi, 0,
3344 sizeof(struct SL_WH_EVENT_TRIGGERS_T));
3345 memcpy(&ioc->diag_trigger_scsi, buf, sz);
3346 if (ioc->diag_trigger_scsi.ValidEntries > NUM_VALID_ENTRIES)
3347 ioc->diag_trigger_scsi.ValidEntries = NUM_VALID_ENTRIES;
3348 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3349 return sz;
3350}
3351static DEVICE_ATTR(diag_trigger_scsi, S_IRUGO | S_IWUSR,
3352 _ctl_diag_trigger_scsi_show, _ctl_diag_trigger_scsi_store);
3353
3354
3355/**
3356 * _ctl_diag_trigger_scsi_show - show the diag_trigger_mpi attribute
3357 * @cdev - pointer to embedded class device
3358 * @buf - the buffer returned
3359 *
3360 * A sysfs 'read/write' shost attribute.
3361 */
3362static ssize_t
3363_ctl_diag_trigger_mpi_show(struct device *cdev,
3364 struct device_attribute *attr, char *buf)
3365{
3366 struct Scsi_Host *shost = class_to_shost(cdev);
3367 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3368 unsigned long flags;
3369 ssize_t rc;
3370
3371 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3372 rc = sizeof(struct SL_WH_MPI_TRIGGERS_T);
3373 memcpy(buf, &ioc->diag_trigger_mpi, rc);
3374 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3375 return rc;
3376}
3377
3378/**
3379 * _ctl_diag_trigger_mpi_store - store the diag_trigger_mpi attribute
3380 * @cdev - pointer to embedded class device
3381 * @buf - the buffer returned
3382 *
3383 * A sysfs 'read/write' shost attribute.
3384 */
3385static ssize_t
3386_ctl_diag_trigger_mpi_store(struct device *cdev,
3387 struct device_attribute *attr, const char *buf, size_t count)
3388{
3389 struct Scsi_Host *shost = class_to_shost(cdev);
3390 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3391 unsigned long flags;
3392 ssize_t sz;
3393
3394 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3395 sz = min(sizeof(struct SL_WH_MPI_TRIGGERS_T), count);
3396 memset(&ioc->diag_trigger_mpi, 0,
66331e8c 3397 sizeof(ioc->diag_trigger_mpi));
f92363d1
SR		 3398 memcpy(&ioc->diag_trigger_mpi, buf, sz);
3399 if (ioc->diag_trigger_mpi.ValidEntries > NUM_VALID_ENTRIES)
3400 ioc->diag_trigger_mpi.ValidEntries = NUM_VALID_ENTRIES;
3401 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3402 return sz;
3403}
3404
3405static DEVICE_ATTR(diag_trigger_mpi, S_IRUGO | S_IWUSR,
3406 _ctl_diag_trigger_mpi_show, _ctl_diag_trigger_mpi_store);
3407
3408/*********** diagnostic trigger suppport *** END ****************************/
3409
f92363d1
SR		 3410/*****************************************/
3411
3412struct device_attribute *mpt3sas_host_attrs[] = {
3413 &dev_attr_version_fw,
3414 &dev_attr_version_bios,
3415 &dev_attr_version_mpi,
3416 &dev_attr_version_product,
3417 &dev_attr_version_nvdata_persistent,
3418 &dev_attr_version_nvdata_default,
3419 &dev_attr_board_name,
3420 &dev_attr_board_assembly,
3421 &dev_attr_board_tracer,
3422 &dev_attr_io_delay,
3423 &dev_attr_device_delay,
3424 &dev_attr_logging_level,
3425 &dev_attr_fwfault_debug,
3426 &dev_attr_fw_queue_depth,
3427 &dev_attr_host_sas_address,
3428 &dev_attr_ioc_reset_count,
3429 &dev_attr_host_trace_buffer_size,
3430 &dev_attr_host_trace_buffer,
3431 &dev_attr_host_trace_buffer_enable,
3432 &dev_attr_reply_queue_count,
3433 &dev_attr_diag_trigger_master,
3434 &dev_attr_diag_trigger_event,
3435 &dev_attr_diag_trigger_scsi,
3436 &dev_attr_diag_trigger_mpi,
42263095 3437 &dev_attr_BRM_status,
f92363d1
SR		 3438 NULL,
3439};
3440
3441/* device attributes */
3442
3443/**
3444 * _ctl_device_sas_address_show - sas address
3445 * @cdev - pointer to embedded class device
3446 * @buf - the buffer returned
3447 *
3448 * This is the sas address for the target
3449 *
3450 * A sysfs 'read-only' shost attribute.
3451 */
3452static ssize_t
3453_ctl_device_sas_address_show(struct device *dev, struct device_attribute *attr,
3454 char *buf)
3455{
3456 struct scsi_device *sdev = to_scsi_device(dev);
3457 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3458
3459 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
3460 (unsigned long long)sas_device_priv_data->sas_target->sas_address);
3461}
3462static DEVICE_ATTR(sas_address, S_IRUGO, _ctl_device_sas_address_show, NULL);
3463
3464/**
3465 * _ctl_device_handle_show - device handle
3466 * @cdev - pointer to embedded class device
3467 * @buf - the buffer returned
3468 *
3469 * This is the firmware assigned device handle
3470 *
3471 * A sysfs 'read-only' shost attribute.
3472 */
3473static ssize_t
3474_ctl_device_handle_show(struct device *dev, struct device_attribute *attr,
3475 char *buf)
3476{
3477 struct scsi_device *sdev = to_scsi_device(dev);
3478 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3479
3480 return snprintf(buf, PAGE_SIZE, "0x%04x\n",
3481 sas_device_priv_data->sas_target->handle);
3482}
3483static DEVICE_ATTR(sas_device_handle, S_IRUGO, _ctl_device_handle_show, NULL);
3484
307d9075
AM		 3485/**
3486 * _ctl_device_ncq_io_prio_show - send prioritized io commands to device
3487 * @dev - pointer to embedded device
3488 * @buf - the buffer returned
3489 *
3490 * A sysfs 'read/write' sdev attribute, only works with SATA
3491 */
3492static ssize_t
3493_ctl_device_ncq_prio_enable_show(struct device *dev,
3494 struct device_attribute *attr, char *buf)
3495{
3496 struct scsi_device *sdev = to_scsi_device(dev);
3497 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3498
3499 return snprintf(buf, PAGE_SIZE, "%d\n",
3500 sas_device_priv_data->ncq_prio_enable);
3501}
3502
3503static ssize_t
3504_ctl_device_ncq_prio_enable_store(struct device *dev,
3505 struct device_attribute *attr,
3506 const char *buf, size_t count)
3507{
3508 struct scsi_device *sdev = to_scsi_device(dev);
3509 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3510 bool ncq_prio_enable = 0;
3511
3512 if (kstrtobool(buf, &ncq_prio_enable))
3513 return -EINVAL;
3514
3515 if (!scsih_ncq_prio_supp(sdev))
3516 return -EINVAL;
3517
3518 sas_device_priv_data->ncq_prio_enable = ncq_prio_enable;
3519 return strlen(buf);
3520}
3521static DEVICE_ATTR(sas_ncq_prio_enable, S_IRUGO | S_IWUSR,
3522 _ctl_device_ncq_prio_enable_show,
3523 _ctl_device_ncq_prio_enable_store);
3524
f92363d1
SR		 3525struct device_attribute *mpt3sas_dev_attrs[] = {
3526 &dev_attr_sas_address,
3527 &dev_attr_sas_device_handle,
307d9075 3528 &dev_attr_sas_ncq_prio_enable,
f92363d1
SR		 3529 NULL,
3530};
3531
c84b06a4
SR		 3532/* file operations table for mpt3ctl device */
3533static const struct file_operations ctl_fops = {
3534 .owner = THIS_MODULE,
3535 .unlocked_ioctl = _ctl_ioctl,
3536 .poll = _ctl_poll,
3537 .fasync = _ctl_fasync,
3538#ifdef CONFIG_COMPAT
3539 .compat_ioctl = _ctl_ioctl_compat,
3540#endif
3541};
3542
3543/* file operations table for mpt2ctl device */
3544static const struct file_operations ctl_gen2_fops = {
3545 .owner = THIS_MODULE,
3546 .unlocked_ioctl = _ctl_mpt2_ioctl,
3547 .poll = _ctl_poll,
3548 .fasync = _ctl_fasync,
3549#ifdef CONFIG_COMPAT
3550 .compat_ioctl = _ctl_mpt2_ioctl_compat,
3551#endif
3552};
3553
3554static struct miscdevice ctl_dev = {
3555 .minor = MPT3SAS_MINOR,
3556 .name = MPT3SAS_DEV_NAME,
3557 .fops = &ctl_fops,
3558};
3559
3560static struct miscdevice gen2_ctl_dev = {
3561 .minor = MPT2SAS_MINOR,
3562 .name = MPT2SAS_DEV_NAME,
3563 .fops = &ctl_gen2_fops,
3564};
3565
f92363d1 3566/**
c84b06a4 3567 * mpt3sas_ctl_init - main entry point for ctl.
f92363d1
SR		 3568 *
3569 */
3570void
c84b06a4 3571mpt3sas_ctl_init(ushort hbas_to_enumerate)
f92363d1
SR		 3572{
3573 async_queue = NULL;
c84b06a4
SR		 3574
3575 /* Don't register mpt3ctl ioctl device if
3576 * hbas_to_enumarate is one.
3577 */
3578 if (hbas_to_enumerate != 1)
3579 if (misc_register(&ctl_dev) < 0)
3580 pr_err("%s can't register misc device [minor=%d]\n",
3581 MPT3SAS_DRIVER_NAME, MPT3SAS_MINOR);
3582
3583 /* Don't register mpt3ctl ioctl device if
3584 * hbas_to_enumarate is two.
3585 */
3586 if (hbas_to_enumerate != 2)
3587 if (misc_register(&gen2_ctl_dev) < 0)
3588 pr_err("%s can't register misc device [minor=%d]\n",
3589 MPT2SAS_DRIVER_NAME, MPT2SAS_MINOR);
3590
f92363d1
SR		 3591 init_waitqueue_head(&ctl_poll_wait);
3592}
3593
3594/**
c84b06a4 3595 * mpt3sas_ctl_exit - exit point for ctl
f92363d1
SR		 3596 *
3597 */
3598void
c84b06a4 3599mpt3sas_ctl_exit(ushort hbas_to_enumerate)
f92363d1
SR		 3600{
3601 struct MPT3SAS_ADAPTER *ioc;
3602 int i;
3603
3604 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
3605
3606 /* free memory associated to diag buffers */
3607 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
3608 if (!ioc->diag_buffer[i])
3609 continue;
3610 if (!(ioc->diag_buffer_status[i] &
3611 MPT3_DIAG_BUFFER_IS_REGISTERED))
3612 continue;
3613 if ((ioc->diag_buffer_status[i] &
3614 MPT3_DIAG_BUFFER_IS_RELEASED))
3615 continue;
3616 pci_free_consistent(ioc->pdev, ioc->diag_buffer_sz[i],
3617 ioc->diag_buffer[i], ioc->diag_buffer_dma[i]);
3618 ioc->diag_buffer[i] = NULL;
3619 ioc->diag_buffer_status[i] = 0;
3620 }
3621
3622 kfree(ioc->event_log);
3623 }
c84b06a4
SR		 3624 if (hbas_to_enumerate != 1)
3625 misc_deregister(&ctl_dev);
3626 if (hbas_to_enumerate != 2)
3627 misc_deregister(&gen2_ctl_dev);
f92363d1 3628}
Linux 6.x block layer and io_uring tree(s)