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Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
[deliverable/linux.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_sas_device_find_by_handle - sas device search
83 * @ioc: per adapter object
84 * @handle: sas device handle (assigned by firmware)
85 * Context: Calling function should acquire ioc->sas_device_lock
86 *
87 * This searches for sas_device based on sas_address, then return sas_device
88 * object.
89 */
90static struct _sas_device *
91_ctl_sas_device_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
92{
93 struct _sas_device *sas_device, *r;
94
95 r = NULL;
96 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
97 if (sas_device->handle != handle)
98 continue;
99 r = sas_device;
100 goto out;
101 }
102
103 out:
104 return r;
105}
106
107/**
108 * _ctl_display_some_debug - debug routine
109 * @ioc: per adapter object
110 * @smid: system request message index
111 * @calling_function_name: string pass from calling function
112 * @mpi_reply: reply message frame
113 * Context: none.
114 *
115 * Function for displaying debug info helpful when debugging issues
116 * in this module.
117 */
118static void
119_ctl_display_some_debug(struct MPT3SAS_ADAPTER *ioc, u16 smid,
120 char *calling_function_name, MPI2DefaultReply_t *mpi_reply)
121{
122 Mpi2ConfigRequest_t *mpi_request;
123 char *desc = NULL;
124
125 if (!(ioc->logging_level & MPT_DEBUG_IOCTL))
126 return;
127
128 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
129 switch (mpi_request->Function) {
130 case MPI2_FUNCTION_SCSI_IO_REQUEST:
131 {
132 Mpi2SCSIIORequest_t *scsi_request =
133 (Mpi2SCSIIORequest_t *)mpi_request;
134
135 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
136 "scsi_io, cmd(0x%02x), cdb_len(%d)",
137 scsi_request->CDB.CDB32[0],
138 le16_to_cpu(scsi_request->IoFlags) & 0xF);
139 desc = ioc->tmp_string;
140 break;
141 }
142 case MPI2_FUNCTION_SCSI_TASK_MGMT:
143 desc = "task_mgmt";
144 break;
145 case MPI2_FUNCTION_IOC_INIT:
146 desc = "ioc_init";
147 break;
148 case MPI2_FUNCTION_IOC_FACTS:
149 desc = "ioc_facts";
150 break;
151 case MPI2_FUNCTION_CONFIG:
152 {
153 Mpi2ConfigRequest_t *config_request =
154 (Mpi2ConfigRequest_t *)mpi_request;
155
156 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
157 "config, type(0x%02x), ext_type(0x%02x), number(%d)",
158 (config_request->Header.PageType &
159 MPI2_CONFIG_PAGETYPE_MASK), config_request->ExtPageType,
160 config_request->Header.PageNumber);
161 desc = ioc->tmp_string;
162 break;
163 }
164 case MPI2_FUNCTION_PORT_FACTS:
165 desc = "port_facts";
166 break;
167 case MPI2_FUNCTION_PORT_ENABLE:
168 desc = "port_enable";
169 break;
170 case MPI2_FUNCTION_EVENT_NOTIFICATION:
171 desc = "event_notification";
172 break;
173 case MPI2_FUNCTION_FW_DOWNLOAD:
174 desc = "fw_download";
175 break;
176 case MPI2_FUNCTION_FW_UPLOAD:
177 desc = "fw_upload";
178 break;
179 case MPI2_FUNCTION_RAID_ACTION:
180 desc = "raid_action";
181 break;
182 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
183 {
184 Mpi2SCSIIORequest_t *scsi_request =
185 (Mpi2SCSIIORequest_t *)mpi_request;
186
187 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
188 "raid_pass, cmd(0x%02x), cdb_len(%d)",
189 scsi_request->CDB.CDB32[0],
190 le16_to_cpu(scsi_request->IoFlags) & 0xF);
191 desc = ioc->tmp_string;
192 break;
193 }
194 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
195 desc = "sas_iounit_cntl";
196 break;
197 case MPI2_FUNCTION_SATA_PASSTHROUGH:
198 desc = "sata_pass";
199 break;
200 case MPI2_FUNCTION_DIAG_BUFFER_POST:
201 desc = "diag_buffer_post";
202 break;
203 case MPI2_FUNCTION_DIAG_RELEASE:
204 desc = "diag_release";
205 break;
206 case MPI2_FUNCTION_SMP_PASSTHROUGH:
207 desc = "smp_passthrough";
208 break;
209 }
210
211 if (!desc)
212 return;
213
214 pr_info(MPT3SAS_FMT "%s: %s, smid(%d)\n",
215 ioc->name, calling_function_name, desc, smid);
216
217 if (!mpi_reply)
218 return;
219
220 if (mpi_reply->IOCStatus || mpi_reply->IOCLogInfo)
221 pr_info(MPT3SAS_FMT
222 "\tiocstatus(0x%04x), loginfo(0x%08x)\n",
223 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
224 le32_to_cpu(mpi_reply->IOCLogInfo));
225
226 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
227 mpi_request->Function ==
228 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
229 Mpi2SCSIIOReply_t *scsi_reply =
230 (Mpi2SCSIIOReply_t *)mpi_reply;
231 struct _sas_device *sas_device = NULL;
232 unsigned long flags;
233
234 spin_lock_irqsave(&ioc->sas_device_lock, flags);
235 sas_device = _ctl_sas_device_find_by_handle(ioc,
236 le16_to_cpu(scsi_reply->DevHandle));
237 if (sas_device) {
238 pr_warn(MPT3SAS_FMT "\tsas_address(0x%016llx), phy(%d)\n",
239 ioc->name, (unsigned long long)
240 sas_device->sas_address, sas_device->phy);
241 pr_warn(MPT3SAS_FMT
242 "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
243 ioc->name, (unsigned long long)
244 sas_device->enclosure_logical_id, sas_device->slot);
245 }
246 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
247 if (scsi_reply->SCSIState || scsi_reply->SCSIStatus)
248 pr_info(MPT3SAS_FMT
249 "\tscsi_state(0x%02x), scsi_status"
250 "(0x%02x)\n", ioc->name,
251 scsi_reply->SCSIState,
252 scsi_reply->SCSIStatus);
253 }
254}
255
f92363d1
SR		 256/**
257 * mpt3sas_ctl_done - ctl module completion routine
258 * @ioc: per adapter object
259 * @smid: system request message index
260 * @msix_index: MSIX table index supplied by the OS
261 * @reply: reply message frame(lower 32bit addr)
262 * Context: none.
263 *
264 * The callback handler when using ioc->ctl_cb_idx.
265 *
266 * Return 1 meaning mf should be freed from _base_interrupt
267 * 0 means the mf is freed from this function.
268 */
269u8
270mpt3sas_ctl_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
271 u32 reply)
272{
273 MPI2DefaultReply_t *mpi_reply;
274 Mpi2SCSIIOReply_t *scsiio_reply;
275 const void *sense_data;
276 u32 sz;
277
278 if (ioc->ctl_cmds.status == MPT3_CMD_NOT_USED)
279 return 1;
280 if (ioc->ctl_cmds.smid != smid)
281 return 1;
282 ioc->ctl_cmds.status |= MPT3_CMD_COMPLETE;
283 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
284 if (mpi_reply) {
285 memcpy(ioc->ctl_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
286 ioc->ctl_cmds.status |= MPT3_CMD_REPLY_VALID;
287 /* get sense data */
288 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
289 mpi_reply->Function ==
290 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
291 scsiio_reply = (Mpi2SCSIIOReply_t *)mpi_reply;
292 if (scsiio_reply->SCSIState &
293 MPI2_SCSI_STATE_AUTOSENSE_VALID) {
294 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
295 le32_to_cpu(scsiio_reply->SenseCount));
296 sense_data = mpt3sas_base_get_sense_buffer(ioc,
297 smid);
298 memcpy(ioc->ctl_cmds.sense, sense_data, sz);
299 }
300 }
301 }
f92363d1 302 _ctl_display_some_debug(ioc, smid, "ctl_done", mpi_reply);
f92363d1
SR		 303 ioc->ctl_cmds.status &= ~MPT3_CMD_PENDING;
304 complete(&ioc->ctl_cmds.done);
305 return 1;
306}
307
308/**
309 * _ctl_check_event_type - determines when an event needs logging
310 * @ioc: per adapter object
311 * @event: firmware event
312 *
313 * The bitmask in ioc->event_type[] indicates which events should be
314 * be saved in the driver event_log. This bitmask is set by application.
315 *
316 * Returns 1 when event should be captured, or zero means no match.
317 */
318static int
319_ctl_check_event_type(struct MPT3SAS_ADAPTER *ioc, u16 event)
320{
321 u16 i;
322 u32 desired_event;
323
324 if (event >= 128 || !event || !ioc->event_log)
325 return 0;
326
327 desired_event = (1 << (event % 32));
328 if (!desired_event)
329 desired_event = 1;
330 i = event / 32;
331 return desired_event & ioc->event_type[i];
332}
333
334/**
335 * mpt3sas_ctl_add_to_event_log - add event
336 * @ioc: per adapter object
337 * @mpi_reply: reply message frame
338 *
339 * Return nothing.
340 */
341void
342mpt3sas_ctl_add_to_event_log(struct MPT3SAS_ADAPTER *ioc,
343 Mpi2EventNotificationReply_t *mpi_reply)
344{
345 struct MPT3_IOCTL_EVENTS *event_log;
346 u16 event;
347 int i;
348 u32 sz, event_data_sz;
349 u8 send_aen = 0;
350
351 if (!ioc->event_log)
352 return;
353
354 event = le16_to_cpu(mpi_reply->Event);
355
356 if (_ctl_check_event_type(ioc, event)) {
357
358 /* insert entry into circular event_log */
359 i = ioc->event_context % MPT3SAS_CTL_EVENT_LOG_SIZE;
360 event_log = ioc->event_log;
361 event_log[i].event = event;
362 event_log[i].context = ioc->event_context++;
363
364 event_data_sz = le16_to_cpu(mpi_reply->EventDataLength)*4;
365 sz = min_t(u32, event_data_sz, MPT3_EVENT_DATA_SIZE);
366 memset(event_log[i].data, 0, MPT3_EVENT_DATA_SIZE);
367 memcpy(event_log[i].data, mpi_reply->EventData, sz);
368 send_aen = 1;
369 }
370
371 /* This aen_event_read_flag flag is set until the
372 * application has read the event log.
373 * For MPI2_EVENT_LOG_ENTRY_ADDED, we always notify.
374 */
375 if (event == MPI2_EVENT_LOG_ENTRY_ADDED ||
376 (send_aen && !ioc->aen_event_read_flag)) {
377 ioc->aen_event_read_flag = 1;
378 wake_up_interruptible(&ctl_poll_wait);
379 if (async_queue)
380 kill_fasync(&async_queue, SIGIO, POLL_IN);
381 }
382}
383
384/**
385 * mpt3sas_ctl_event_callback - firmware event handler (called at ISR time)
386 * @ioc: per adapter object
387 * @msix_index: MSIX table index supplied by the OS
388 * @reply: reply message frame(lower 32bit addr)
389 * Context: interrupt.
390 *
391 * This function merely adds a new work task into ioc->firmware_event_thread.
392 * The tasks are worked from _firmware_event_work in user context.
393 *
394 * Return 1 meaning mf should be freed from _base_interrupt
395 * 0 means the mf is freed from this function.
396 */
397u8
398mpt3sas_ctl_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index,
399 u32 reply)
400{
401 Mpi2EventNotificationReply_t *mpi_reply;
402
403 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
404 mpt3sas_ctl_add_to_event_log(ioc, mpi_reply);
405 return 1;
406}
407
408/**
409 * _ctl_verify_adapter - validates ioc_number passed from application
410 * @ioc: per adapter object
411 * @iocpp: The ioc pointer is returned in this.
c84b06a4
SR		 412 * @mpi_version: will be MPI2_VERSION for mpt2ctl ioctl device &
413 * MPI25_VERSION for mpt3ctl ioctl device.
f92363d1
SR		 414 *
415 * Return (-1) means error, else ioc_number.
416 */
417static int
c84b06a4
SR		 418_ctl_verify_adapter(int ioc_number, struct MPT3SAS_ADAPTER **iocpp,
419 int mpi_version)
f92363d1
SR		 420{
421 struct MPT3SAS_ADAPTER *ioc;
08c4d550
SR		 422 /* global ioc lock to protect controller on list operations */
423 spin_lock(&gioc_lock);
f92363d1
SR		 424 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
425 if (ioc->id != ioc_number)
426 continue;
c84b06a4
SR		 427 /* Check whether this ioctl command is from right
428 * ioctl device or not, if not continue the search.
429 */
430 if (ioc->hba_mpi_version_belonged != mpi_version)
431 continue;
08c4d550 432 spin_unlock(&gioc_lock);
f92363d1
SR		 433 *iocpp = ioc;
434 return ioc_number;
435 }
08c4d550 436 spin_unlock(&gioc_lock);
f92363d1
SR		 437 *iocpp = NULL;
438 return -1;
439}
440
441/**
442 * mpt3sas_ctl_reset_handler - reset callback handler (for ctl)
443 * @ioc: per adapter object
444 * @reset_phase: phase
445 *
446 * The handler for doing any required cleanup or initialization.
447 *
448 * The reset phase can be MPT3_IOC_PRE_RESET, MPT3_IOC_AFTER_RESET,
449 * MPT3_IOC_DONE_RESET
450 */
451void
452mpt3sas_ctl_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase)
453{
454 int i;
455 u8 issue_reset;
456
457 switch (reset_phase) {
458 case MPT3_IOC_PRE_RESET:
459 dtmprintk(ioc, pr_info(MPT3SAS_FMT
460 "%s: MPT3_IOC_PRE_RESET\n", ioc->name, __func__));
461 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
462 if (!(ioc->diag_buffer_status[i] &
463 MPT3_DIAG_BUFFER_IS_REGISTERED))
464 continue;
465 if ((ioc->diag_buffer_status[i] &
466 MPT3_DIAG_BUFFER_IS_RELEASED))
467 continue;
468 mpt3sas_send_diag_release(ioc, i, &issue_reset);
469 }
470 break;
471 case MPT3_IOC_AFTER_RESET:
472 dtmprintk(ioc, pr_info(MPT3SAS_FMT
473 "%s: MPT3_IOC_AFTER_RESET\n", ioc->name, __func__));
474 if (ioc->ctl_cmds.status & MPT3_CMD_PENDING) {
475 ioc->ctl_cmds.status |= MPT3_CMD_RESET;
476 mpt3sas_base_free_smid(ioc, ioc->ctl_cmds.smid);
477 complete(&ioc->ctl_cmds.done);
478 }
479 break;
480 case MPT3_IOC_DONE_RESET:
481 dtmprintk(ioc, pr_info(MPT3SAS_FMT
482 "%s: MPT3_IOC_DONE_RESET\n", ioc->name, __func__));
483
484 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
485 if (!(ioc->diag_buffer_status[i] &
486 MPT3_DIAG_BUFFER_IS_REGISTERED))
487 continue;
488 if ((ioc->diag_buffer_status[i] &
489 MPT3_DIAG_BUFFER_IS_RELEASED))
490 continue;
491 ioc->diag_buffer_status[i] |=
492 MPT3_DIAG_BUFFER_IS_DIAG_RESET;
493 }
494 break;
495 }
496}
497
498/**
c84b06a4 499 * _ctl_fasync -
f92363d1
SR		 500 * @fd -
501 * @filep -
502 * @mode -
503 *
504 * Called when application request fasyn callback handler.
505 */
8a7e4c24 506int
c84b06a4 507_ctl_fasync(int fd, struct file *filep, int mode)
f92363d1
SR		 508{
509 return fasync_helper(fd, filep, mode, &async_queue);
510}
511
f92363d1 512/**
c84b06a4 513 * _ctl_poll -
f92363d1
SR		 514 * @file -
515 * @wait -
516 *
517 */
8a7e4c24 518unsigned int
c84b06a4 519_ctl_poll(struct file *filep, poll_table *wait)
f92363d1
SR		 520{
521 struct MPT3SAS_ADAPTER *ioc;
522
523 poll_wait(filep, &ctl_poll_wait, wait);
524
08c4d550
SR		 525 /* global ioc lock to protect controller on list operations */
526 spin_lock(&gioc_lock);
f92363d1 527 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
08c4d550
SR		 528 if (ioc->aen_event_read_flag) {
529 spin_unlock(&gioc_lock);
f92363d1 530 return POLLIN | POLLRDNORM;
08c4d550 531 }
f92363d1 532 }
08c4d550 533 spin_unlock(&gioc_lock);
f92363d1
SR		 534 return 0;
535}
536
537/**
538 * _ctl_set_task_mid - assign an active smid to tm request
539 * @ioc: per adapter object
540 * @karg - (struct mpt3_ioctl_command)
541 * @tm_request - pointer to mf from user space
542 *
543 * Returns 0 when an smid if found, else fail.
544 * during failure, the reply frame is filled.
545 */
546static int
547_ctl_set_task_mid(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command *karg,
548 Mpi2SCSITaskManagementRequest_t *tm_request)
549{
550 u8 found = 0;
551 u16 i;
552 u16 handle;
553 struct scsi_cmnd *scmd;
554 struct MPT3SAS_DEVICE *priv_data;
555 unsigned long flags;
556 Mpi2SCSITaskManagementReply_t *tm_reply;
557 u32 sz;
558 u32 lun;
559 char *desc = NULL;
560
561 if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
562 desc = "abort_task";
563 else if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK)
564 desc = "query_task";
565 else
566 return 0;
567
568 lun = scsilun_to_int((struct scsi_lun *)tm_request->LUN);
569
570 handle = le16_to_cpu(tm_request->DevHandle);
571 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
572 for (i = ioc->scsiio_depth; i && !found; i--) {
573 scmd = ioc->scsi_lookup[i - 1].scmd;
574 if (scmd == NULL || scmd->device == NULL ||
575 scmd->device->hostdata == NULL)
576 continue;
577 if (lun != scmd->device->lun)
578 continue;
579 priv_data = scmd->device->hostdata;
580 if (priv_data->sas_target == NULL)
581 continue;
582 if (priv_data->sas_target->handle != handle)
583 continue;
584 tm_request->TaskMID = cpu_to_le16(ioc->scsi_lookup[i - 1].smid);
585 found = 1;
586 }
587 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
588
589 if (!found) {
590 dctlprintk(ioc, pr_info(MPT3SAS_FMT
591 "%s: handle(0x%04x), lun(%d), no active mid!!\n",
592 ioc->name,
593 desc, le16_to_cpu(tm_request->DevHandle), lun));
594 tm_reply = ioc->ctl_cmds.reply;
595 tm_reply->DevHandle = tm_request->DevHandle;
596 tm_reply->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
597 tm_reply->TaskType = tm_request->TaskType;
598 tm_reply->MsgLength = sizeof(Mpi2SCSITaskManagementReply_t)/4;
599 tm_reply->VP_ID = tm_request->VP_ID;
600 tm_reply->VF_ID = tm_request->VF_ID;
601 sz = min_t(u32, karg->max_reply_bytes, ioc->reply_sz);
602 if (copy_to_user(karg->reply_frame_buf_ptr, ioc->ctl_cmds.reply,
603 sz))
604 pr_err("failure at %s:%d/%s()!\n", __FILE__,
605 __LINE__, __func__);
606 return 1;
607 }
608
609 dctlprintk(ioc, pr_info(MPT3SAS_FMT
610 "%s: handle(0x%04x), lun(%d), task_mid(%d)\n", ioc->name,
611 desc, le16_to_cpu(tm_request->DevHandle), lun,
612 le16_to_cpu(tm_request->TaskMID)));
613 return 0;
614}
615
616/**
617 * _ctl_do_mpt_command - main handler for MPT3COMMAND opcode
618 * @ioc: per adapter object
619 * @karg - (struct mpt3_ioctl_command)
620 * @mf - pointer to mf in user space
621 */
622static long
623_ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
624 void __user *mf)
625{
626 MPI2RequestHeader_t *mpi_request = NULL, *request;
627 MPI2DefaultReply_t *mpi_reply;
628 u32 ioc_state;
629 u16 ioc_status;
630 u16 smid;
631 unsigned long timeout, timeleft;
632 u8 issue_reset;
633 u32 sz;
634 void *psge;
635 void *data_out = NULL;
636 dma_addr_t data_out_dma = 0;
637 size_t data_out_sz = 0;
638 void *data_in = NULL;
639 dma_addr_t data_in_dma = 0;
640 size_t data_in_sz = 0;
641 long ret;
642 u16 wait_state_count;
643
644 issue_reset = 0;
645
646 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
647 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
648 ioc->name, __func__);
649 ret = -EAGAIN;
650 goto out;
651 }
652
653 wait_state_count = 0;
654 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
655 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
656 if (wait_state_count++ == 10) {
657 pr_err(MPT3SAS_FMT
658 "%s: failed due to ioc not operational\n",
659 ioc->name, __func__);
660 ret = -EFAULT;
661 goto out;
662 }
663 ssleep(1);
664 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
665 pr_info(MPT3SAS_FMT
666 "%s: waiting for operational state(count=%d)\n",
667 ioc->name,
668 __func__, wait_state_count);
669 }
670 if (wait_state_count)
671 pr_info(MPT3SAS_FMT "%s: ioc is operational\n",
672 ioc->name, __func__);
673
674 mpi_request = kzalloc(ioc->request_sz, GFP_KERNEL);
675 if (!mpi_request) {
676 pr_err(MPT3SAS_FMT
677 "%s: failed obtaining a memory for mpi_request\n",
678 ioc->name, __func__);
679 ret = -ENOMEM;
680 goto out;
681 }
682
683 /* Check for overflow and wraparound */
684 if (karg.data_sge_offset * 4 > ioc->request_sz ||
685 karg.data_sge_offset > (UINT_MAX / 4)) {
686 ret = -EINVAL;
687 goto out;
688 }
689
690 /* copy in request message frame from user */
691 if (copy_from_user(mpi_request, mf, karg.data_sge_offset*4)) {
692 pr_err("failure at %s:%d/%s()!\n", __FILE__, __LINE__,
693 __func__);
694 ret = -EFAULT;
695 goto out;
696 }
697
698 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
699 smid = mpt3sas_base_get_smid_hpr(ioc, ioc->ctl_cb_idx);
700 if (!smid) {
701 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
702 ioc->name, __func__);
703 ret = -EAGAIN;
704 goto out;
705 }
706 } else {
707
708 smid = mpt3sas_base_get_smid_scsiio(ioc, ioc->ctl_cb_idx, NULL);
709 if (!smid) {
710 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
711 ioc->name, __func__);
712 ret = -EAGAIN;
713 goto out;
714 }
715 }
716
717 ret = 0;
718 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
719 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
720 request = mpt3sas_base_get_msg_frame(ioc, smid);
721 memcpy(request, mpi_request, karg.data_sge_offset*4);
722 ioc->ctl_cmds.smid = smid;
723 data_out_sz = karg.data_out_size;
724 data_in_sz = karg.data_in_size;
725
726 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
727 mpi_request->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
728 if (!le16_to_cpu(mpi_request->FunctionDependent1) ||
729 le16_to_cpu(mpi_request->FunctionDependent1) >
730 ioc->facts.MaxDevHandle) {
731 ret = -EINVAL;
732 mpt3sas_base_free_smid(ioc, smid);
733 goto out;
734 }
735 }
736
737 /* obtain dma-able memory for data transfer */
738 if (data_out_sz) /* WRITE */ {
739 data_out = pci_alloc_consistent(ioc->pdev, data_out_sz,
740 &data_out_dma);
741 if (!data_out) {
742 pr_err("failure at %s:%d/%s()!\n", __FILE__,
743 __LINE__, __func__);
744 ret = -ENOMEM;
745 mpt3sas_base_free_smid(ioc, smid);
746 goto out;
747 }
748 if (copy_from_user(data_out, karg.data_out_buf_ptr,
749 data_out_sz)) {
750 pr_err("failure at %s:%d/%s()!\n", __FILE__,
751 __LINE__, __func__);
752 ret = -EFAULT;
753 mpt3sas_base_free_smid(ioc, smid);
754 goto out;
755 }
756 }
757
758 if (data_in_sz) /* READ */ {
759 data_in = pci_alloc_consistent(ioc->pdev, data_in_sz,
760 &data_in_dma);
761 if (!data_in) {
762 pr_err("failure at %s:%d/%s()!\n", __FILE__,
763 __LINE__, __func__);
764 ret = -ENOMEM;
765 mpt3sas_base_free_smid(ioc, smid);
766 goto out;
767 }
768 }
769
770 psge = (void *)request + (karg.data_sge_offset*4);
771
772 /* send command to firmware */
f92363d1 773 _ctl_display_some_debug(ioc, smid, "ctl_request", NULL);
f92363d1
SR		 774
775 init_completion(&ioc->ctl_cmds.done);
776 switch (mpi_request->Function) {
777 case MPI2_FUNCTION_SCSI_IO_REQUEST:
778 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
779 {
780 Mpi2SCSIIORequest_t *scsiio_request =
781 (Mpi2SCSIIORequest_t *)request;
782 scsiio_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
783 scsiio_request->SenseBufferLowAddress =
784 mpt3sas_base_get_sense_buffer_dma(ioc, smid);
785 memset(ioc->ctl_cmds.sense, 0, SCSI_SENSE_BUFFERSIZE);
786 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
787 data_in_dma, data_in_sz);
788
789 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)
790 mpt3sas_base_put_smid_scsi_io(ioc, smid,
791 le16_to_cpu(mpi_request->FunctionDependent1));
792 else
793 mpt3sas_base_put_smid_default(ioc, smid);
794 break;
795 }
796 case MPI2_FUNCTION_SCSI_TASK_MGMT:
797 {
798 Mpi2SCSITaskManagementRequest_t *tm_request =
799 (Mpi2SCSITaskManagementRequest_t *)request;
800
801 dtmprintk(ioc, pr_info(MPT3SAS_FMT
802 "TASK_MGMT: handle(0x%04x), task_type(0x%02x)\n",
803 ioc->name,
804 le16_to_cpu(tm_request->DevHandle), tm_request->TaskType));
805
806 if (tm_request->TaskType ==
807 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK ||
808 tm_request->TaskType ==
809 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) {
810 if (_ctl_set_task_mid(ioc, &karg, tm_request)) {
811 mpt3sas_base_free_smid(ioc, smid);
812 goto out;
813 }
814 }
815
816 mpt3sas_scsih_set_tm_flag(ioc, le16_to_cpu(
817 tm_request->DevHandle));
818 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
819 data_in_dma, data_in_sz);
820 mpt3sas_base_put_smid_hi_priority(ioc, smid);
821 break;
822 }
823 case MPI2_FUNCTION_SMP_PASSTHROUGH:
824 {
825 Mpi2SmpPassthroughRequest_t *smp_request =
826 (Mpi2SmpPassthroughRequest_t *)mpi_request;
827 u8 *data;
828
829 /* ioc determines which port to use */
830 smp_request->PhysicalPort = 0xFF;
831 if (smp_request->PassthroughFlags &
832 MPI2_SMP_PT_REQ_PT_FLAGS_IMMEDIATE)
833 data = (u8 *)&smp_request->SGL;
834 else {
835 if (unlikely(data_out == NULL)) {
836 pr_err("failure at %s:%d/%s()!\n",
837 __FILE__, __LINE__, __func__);
838 mpt3sas_base_free_smid(ioc, smid);
839 ret = -EINVAL;
840 goto out;
841 }
842 data = data_out;
843 }
844
845 if (data[1] == 0x91 && (data[10] == 1 || data[10] == 2)) {
846 ioc->ioc_link_reset_in_progress = 1;
847 ioc->ignore_loginfos = 1;
848 }
849 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
850 data_in_sz);
851 mpt3sas_base_put_smid_default(ioc, smid);
852 break;
853 }
854 case MPI2_FUNCTION_SATA_PASSTHROUGH:
855 case MPI2_FUNCTION_FW_DOWNLOAD:
856 case MPI2_FUNCTION_FW_UPLOAD:
857 {
858 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
859 data_in_sz);
860 mpt3sas_base_put_smid_default(ioc, smid);
861 break;
862 }
863 case MPI2_FUNCTION_TOOLBOX:
864 {
865 Mpi2ToolboxCleanRequest_t *toolbox_request =
866 (Mpi2ToolboxCleanRequest_t *)mpi_request;
867
868 if (toolbox_request->Tool == MPI2_TOOLBOX_DIAGNOSTIC_CLI_TOOL) {
869 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
870 data_in_dma, data_in_sz);
871 } else {
872 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
873 data_in_dma, data_in_sz);
874 }
875 mpt3sas_base_put_smid_default(ioc, smid);
876 break;
877 }
878 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
879 {
880 Mpi2SasIoUnitControlRequest_t *sasiounit_request =
881 (Mpi2SasIoUnitControlRequest_t *)mpi_request;
882
883 if (sasiounit_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET
884 || sasiounit_request->Operation ==
885 MPI2_SAS_OP_PHY_LINK_RESET) {
886 ioc->ioc_link_reset_in_progress = 1;
887 ioc->ignore_loginfos = 1;
888 }
889 /* drop to default case for posting the request */
890 }
891 default:
892 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
893 data_in_dma, data_in_sz);
894 mpt3sas_base_put_smid_default(ioc, smid);
895 break;
896 }
897
898 if (karg.timeout < MPT3_IOCTL_DEFAULT_TIMEOUT)
899 timeout = MPT3_IOCTL_DEFAULT_TIMEOUT;
900 else
901 timeout = karg.timeout;
902 timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
903 timeout*HZ);
904 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
905 Mpi2SCSITaskManagementRequest_t *tm_request =
906 (Mpi2SCSITaskManagementRequest_t *)mpi_request;
907 mpt3sas_scsih_clear_tm_flag(ioc, le16_to_cpu(
908 tm_request->DevHandle));
909 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
910 } else if ((mpi_request->Function == MPI2_FUNCTION_SMP_PASSTHROUGH ||
911 mpi_request->Function == MPI2_FUNCTION_SAS_IO_UNIT_CONTROL) &&
912 ioc->ioc_link_reset_in_progress) {
913 ioc->ioc_link_reset_in_progress = 0;
914 ioc->ignore_loginfos = 0;
915 }
916 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
917 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
918 __func__);
919 _debug_dump_mf(mpi_request, karg.data_sge_offset);
920 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
921 issue_reset = 1;
922 goto issue_host_reset;
923 }
924
925 mpi_reply = ioc->ctl_cmds.reply;
926 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
927
f92363d1
SR		 928 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_TASK_MGMT &&
929 (ioc->logging_level & MPT_DEBUG_TM)) {
930 Mpi2SCSITaskManagementReply_t *tm_reply =
931 (Mpi2SCSITaskManagementReply_t *)mpi_reply;
932
933 pr_info(MPT3SAS_FMT "TASK_MGMT: " \
934 "IOCStatus(0x%04x), IOCLogInfo(0x%08x), "
935 "TerminationCount(0x%08x)\n", ioc->name,
936 le16_to_cpu(tm_reply->IOCStatus),
937 le32_to_cpu(tm_reply->IOCLogInfo),
938 le32_to_cpu(tm_reply->TerminationCount));
939 }
af009411 940
f92363d1
SR		 941 /* copy out xdata to user */
942 if (data_in_sz) {
943 if (copy_to_user(karg.data_in_buf_ptr, data_in,
944 data_in_sz)) {
945 pr_err("failure at %s:%d/%s()!\n", __FILE__,
946 __LINE__, __func__);
947 ret = -ENODATA;
948 goto out;
949 }
950 }
951
952 /* copy out reply message frame to user */
953 if (karg.max_reply_bytes) {
954 sz = min_t(u32, karg.max_reply_bytes, ioc->reply_sz);
955 if (copy_to_user(karg.reply_frame_buf_ptr, ioc->ctl_cmds.reply,
956 sz)) {
957 pr_err("failure at %s:%d/%s()!\n", __FILE__,
958 __LINE__, __func__);
959 ret = -ENODATA;
960 goto out;
961 }
962 }
963
964 /* copy out sense to user */
965 if (karg.max_sense_bytes && (mpi_request->Function ==
966 MPI2_FUNCTION_SCSI_IO_REQUEST || mpi_request->Function ==
967 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) {
968 sz = min_t(u32, karg.max_sense_bytes, SCSI_SENSE_BUFFERSIZE);
969 if (copy_to_user(karg.sense_data_ptr, ioc->ctl_cmds.sense,
970 sz)) {
971 pr_err("failure at %s:%d/%s()!\n", __FILE__,
972 __LINE__, __func__);
973 ret = -ENODATA;
974 goto out;
975 }
976 }
977
978 issue_host_reset:
979 if (issue_reset) {
980 ret = -ENODATA;
981 if ((mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
982 mpi_request->Function ==
983 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
984 mpi_request->Function == MPI2_FUNCTION_SATA_PASSTHROUGH)) {
985 pr_info(MPT3SAS_FMT "issue target reset: handle = (0x%04x)\n",
986 ioc->name,
987 le16_to_cpu(mpi_request->FunctionDependent1));
988 mpt3sas_halt_firmware(ioc);
989 mpt3sas_scsih_issue_tm(ioc,
990 le16_to_cpu(mpi_request->FunctionDependent1), 0, 0,
991 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 30,
c62e46de 992 TM_MUTEX_ON);
f92363d1
SR		 993 } else
994 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
995 FORCE_BIG_HAMMER);
996 }
997
998 out:
999
1000 /* free memory associated with sg buffers */
1001 if (data_in)
1002 pci_free_consistent(ioc->pdev, data_in_sz, data_in,
1003 data_in_dma);
1004
1005 if (data_out)
1006 pci_free_consistent(ioc->pdev, data_out_sz, data_out,
1007 data_out_dma);
1008
1009 kfree(mpi_request);
1010 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1011 return ret;
1012}
1013
1014/**
1015 * _ctl_getiocinfo - main handler for MPT3IOCINFO opcode
1016 * @ioc: per adapter object
1017 * @arg - user space buffer containing ioctl content
1018 */
1019static long
1020_ctl_getiocinfo(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1021{
1022 struct mpt3_ioctl_iocinfo karg;
1023
1024 if (copy_from_user(&karg, arg, sizeof(karg))) {
1025 pr_err("failure at %s:%d/%s()!\n",
1026 __FILE__, __LINE__, __func__);
1027 return -EFAULT;
1028 }
1029
1030 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1031 __func__));
1032
1033 memset(&karg, 0 , sizeof(karg));
f92363d1
SR		 1034 if (ioc->pfacts)
1035 karg.port_number = ioc->pfacts[0].PortNumber;
1036 karg.hw_rev = ioc->pdev->revision;
1037 karg.pci_id = ioc->pdev->device;
1038 karg.subsystem_device = ioc->pdev->subsystem_device;
1039 karg.subsystem_vendor = ioc->pdev->subsystem_vendor;
1040 karg.pci_information.u.bits.bus = ioc->pdev->bus->number;
1041 karg.pci_information.u.bits.device = PCI_SLOT(ioc->pdev->devfn);
1042 karg.pci_information.u.bits.function = PCI_FUNC(ioc->pdev->devfn);
1043 karg.pci_information.segment_id = pci_domain_nr(ioc->pdev->bus);
1044 karg.firmware_version = ioc->facts.FWVersion.Word;
c84b06a4 1045 strcpy(karg.driver_version, ioc->driver_name);
f92363d1 1046 strcat(karg.driver_version, "-");
d357e84d
SR		 1047 switch (ioc->hba_mpi_version_belonged) {
1048 case MPI2_VERSION:
7786ab6a
SR		 1049 if (ioc->is_warpdrive)
1050 karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2_SSS6200;
1051 else
1052 karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2;
d357e84d
SR		 1053 strcat(karg.driver_version, MPT2SAS_DRIVER_VERSION);
1054 break;
1055 case MPI25_VERSION:
1056 karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS3;
1057 strcat(karg.driver_version, MPT3SAS_DRIVER_VERSION);
1058 break;
1059 }
f92363d1
SR		 1060 karg.bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
1061
1062 if (copy_to_user(arg, &karg, sizeof(karg))) {
1063 pr_err("failure at %s:%d/%s()!\n",
1064 __FILE__, __LINE__, __func__);
1065 return -EFAULT;
1066 }
1067 return 0;
1068}
1069
1070/**
1071 * _ctl_eventquery - main handler for MPT3EVENTQUERY opcode
1072 * @ioc: per adapter object
1073 * @arg - user space buffer containing ioctl content
1074 */
1075static long
1076_ctl_eventquery(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1077{
1078 struct mpt3_ioctl_eventquery karg;
1079
1080 if (copy_from_user(&karg, arg, sizeof(karg))) {
1081 pr_err("failure at %s:%d/%s()!\n",
1082 __FILE__, __LINE__, __func__);
1083 return -EFAULT;
1084 }
1085
1086 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1087 __func__));
1088
1089 karg.event_entries = MPT3SAS_CTL_EVENT_LOG_SIZE;
1090 memcpy(karg.event_types, ioc->event_type,
1091 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1092
1093 if (copy_to_user(arg, &karg, sizeof(karg))) {
1094 pr_err("failure at %s:%d/%s()!\n",
1095 __FILE__, __LINE__, __func__);
1096 return -EFAULT;
1097 }
1098 return 0;
1099}
1100
1101/**
1102 * _ctl_eventenable - main handler for MPT3EVENTENABLE opcode
1103 * @ioc: per adapter object
1104 * @arg - user space buffer containing ioctl content
1105 */
1106static long
1107_ctl_eventenable(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1108{
1109 struct mpt3_ioctl_eventenable karg;
1110
1111 if (copy_from_user(&karg, arg, sizeof(karg))) {
1112 pr_err("failure at %s:%d/%s()!\n",
1113 __FILE__, __LINE__, __func__);
1114 return -EFAULT;
1115 }
1116
1117 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1118 __func__));
1119
1120 memcpy(ioc->event_type, karg.event_types,
1121 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1122 mpt3sas_base_validate_event_type(ioc, ioc->event_type);
1123
1124 if (ioc->event_log)
1125 return 0;
1126 /* initialize event_log */
1127 ioc->event_context = 0;
1128 ioc->aen_event_read_flag = 0;
1129 ioc->event_log = kcalloc(MPT3SAS_CTL_EVENT_LOG_SIZE,
1130 sizeof(struct MPT3_IOCTL_EVENTS), GFP_KERNEL);
1131 if (!ioc->event_log) {
1132 pr_err("failure at %s:%d/%s()!\n",
1133 __FILE__, __LINE__, __func__);
1134 return -ENOMEM;
1135 }
1136 return 0;
1137}
1138
1139/**
1140 * _ctl_eventreport - main handler for MPT3EVENTREPORT opcode
1141 * @ioc: per adapter object
1142 * @arg - user space buffer containing ioctl content
1143 */
1144static long
1145_ctl_eventreport(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1146{
1147 struct mpt3_ioctl_eventreport karg;
1148 u32 number_bytes, max_events, max;
1149 struct mpt3_ioctl_eventreport __user *uarg = arg;
1150
1151 if (copy_from_user(&karg, arg, sizeof(karg))) {
1152 pr_err("failure at %s:%d/%s()!\n",
1153 __FILE__, __LINE__, __func__);
1154 return -EFAULT;
1155 }
1156
1157 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1158 __func__));
1159
1160 number_bytes = karg.hdr.max_data_size -
1161 sizeof(struct mpt3_ioctl_header);
1162 max_events = number_bytes/sizeof(struct MPT3_IOCTL_EVENTS);
1163 max = min_t(u32, MPT3SAS_CTL_EVENT_LOG_SIZE, max_events);
1164
1165 /* If fewer than 1 event is requested, there must have
1166 * been some type of error.
1167 */
1168 if (!max || !ioc->event_log)
1169 return -ENODATA;
1170
1171 number_bytes = max * sizeof(struct MPT3_IOCTL_EVENTS);
1172 if (copy_to_user(uarg->event_data, ioc->event_log, number_bytes)) {
1173 pr_err("failure at %s:%d/%s()!\n",
1174 __FILE__, __LINE__, __func__);
1175 return -EFAULT;
1176 }
1177
1178 /* reset flag so SIGIO can restart */
1179 ioc->aen_event_read_flag = 0;
1180 return 0;
1181}
1182
1183/**
1184 * _ctl_do_reset - main handler for MPT3HARDRESET opcode
1185 * @ioc: per adapter object
1186 * @arg - user space buffer containing ioctl content
1187 */
1188static long
1189_ctl_do_reset(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1190{
1191 struct mpt3_ioctl_diag_reset karg;
1192 int retval;
1193
1194 if (copy_from_user(&karg, arg, sizeof(karg))) {
1195 pr_err("failure at %s:%d/%s()!\n",
1196 __FILE__, __LINE__, __func__);
1197 return -EFAULT;
1198 }
1199
1200 if (ioc->shost_recovery || ioc->pci_error_recovery ||
1201 ioc->is_driver_loading)
1202 return -EAGAIN;
1203
1204 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1205 __func__));
1206
1207 retval = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1208 FORCE_BIG_HAMMER);
1209 pr_info(MPT3SAS_FMT "host reset: %s\n",
1210 ioc->name, ((!retval) ? "SUCCESS" : "FAILED"));
1211 return 0;
1212}
1213
1214/**
1215 * _ctl_btdh_search_sas_device - searching for sas device
1216 * @ioc: per adapter object
1217 * @btdh: btdh ioctl payload
1218 */
1219static int
1220_ctl_btdh_search_sas_device(struct MPT3SAS_ADAPTER *ioc,
1221 struct mpt3_ioctl_btdh_mapping *btdh)
1222{
1223 struct _sas_device *sas_device;
1224 unsigned long flags;
1225 int rc = 0;
1226
1227 if (list_empty(&ioc->sas_device_list))
1228 return rc;
1229
1230 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1231 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
1232 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1233 btdh->handle == sas_device->handle) {
1234 btdh->bus = sas_device->channel;
1235 btdh->id = sas_device->id;
1236 rc = 1;
1237 goto out;
1238 } else if (btdh->bus == sas_device->channel && btdh->id ==
1239 sas_device->id && btdh->handle == 0xFFFF) {
1240 btdh->handle = sas_device->handle;
1241 rc = 1;
1242 goto out;
1243 }
1244 }
1245 out:
1246 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1247 return rc;
1248}
1249
1250/**
1251 * _ctl_btdh_search_raid_device - searching for raid device
1252 * @ioc: per adapter object
1253 * @btdh: btdh ioctl payload
1254 */
1255static int
1256_ctl_btdh_search_raid_device(struct MPT3SAS_ADAPTER *ioc,
1257 struct mpt3_ioctl_btdh_mapping *btdh)
1258{
1259 struct _raid_device *raid_device;
1260 unsigned long flags;
1261 int rc = 0;
1262
1263 if (list_empty(&ioc->raid_device_list))
1264 return rc;
1265
1266 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1267 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
1268 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1269 btdh->handle == raid_device->handle) {
1270 btdh->bus = raid_device->channel;
1271 btdh->id = raid_device->id;
1272 rc = 1;
1273 goto out;
1274 } else if (btdh->bus == raid_device->channel && btdh->id ==
1275 raid_device->id && btdh->handle == 0xFFFF) {
1276 btdh->handle = raid_device->handle;
1277 rc = 1;
1278 goto out;
1279 }
1280 }
1281 out:
1282 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1283 return rc;
1284}
1285
1286/**
1287 * _ctl_btdh_mapping - main handler for MPT3BTDHMAPPING opcode
1288 * @ioc: per adapter object
1289 * @arg - user space buffer containing ioctl content
1290 */
1291static long
1292_ctl_btdh_mapping(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1293{
1294 struct mpt3_ioctl_btdh_mapping karg;
1295 int rc;
1296
1297 if (copy_from_user(&karg, arg, sizeof(karg))) {
1298 pr_err("failure at %s:%d/%s()!\n",
1299 __FILE__, __LINE__, __func__);
1300 return -EFAULT;
1301 }
1302
1303 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1304 __func__));
1305
1306 rc = _ctl_btdh_search_sas_device(ioc, &karg);
1307 if (!rc)
1308 _ctl_btdh_search_raid_device(ioc, &karg);
1309
1310 if (copy_to_user(arg, &karg, sizeof(karg))) {
1311 pr_err("failure at %s:%d/%s()!\n",
1312 __FILE__, __LINE__, __func__);
1313 return -EFAULT;
1314 }
1315 return 0;
1316}
1317
1318/**
1319 * _ctl_diag_capability - return diag buffer capability
1320 * @ioc: per adapter object
1321 * @buffer_type: specifies either TRACE, SNAPSHOT, or EXTENDED
1322 *
1323 * returns 1 when diag buffer support is enabled in firmware
1324 */
1325static u8
1326_ctl_diag_capability(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type)
1327{
1328 u8 rc = 0;
1329
1330 switch (buffer_type) {
1331 case MPI2_DIAG_BUF_TYPE_TRACE:
1332 if (ioc->facts.IOCCapabilities &
1333 MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER)
1334 rc = 1;
1335 break;
1336 case MPI2_DIAG_BUF_TYPE_SNAPSHOT:
1337 if (ioc->facts.IOCCapabilities &
1338 MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER)
1339 rc = 1;
1340 break;
1341 case MPI2_DIAG_BUF_TYPE_EXTENDED:
1342 if (ioc->facts.IOCCapabilities &
1343 MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER)
1344 rc = 1;
1345 }
1346
1347 return rc;
1348}
1349
1350
1351/**
1352 * _ctl_diag_register_2 - wrapper for registering diag buffer support
1353 * @ioc: per adapter object
1354 * @diag_register: the diag_register struct passed in from user space
1355 *
1356 */
1357static long
1358_ctl_diag_register_2(struct MPT3SAS_ADAPTER *ioc,
1359 struct mpt3_diag_register *diag_register)
1360{
1361 int rc, i;
1362 void *request_data = NULL;
1363 dma_addr_t request_data_dma;
1364 u32 request_data_sz = 0;
1365 Mpi2DiagBufferPostRequest_t *mpi_request;
1366 Mpi2DiagBufferPostReply_t *mpi_reply;
1367 u8 buffer_type;
1368 unsigned long timeleft;
1369 u16 smid;
1370 u16 ioc_status;
1371 u32 ioc_state;
1372 u8 issue_reset = 0;
1373
1374 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1375 __func__));
1376
1377 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1378 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1379 pr_err(MPT3SAS_FMT
1380 "%s: failed due to ioc not operational\n",
1381 ioc->name, __func__);
1382 rc = -EAGAIN;
1383 goto out;
1384 }
1385
1386 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
1387 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
1388 ioc->name, __func__);
1389 rc = -EAGAIN;
1390 goto out;
1391 }
1392
1393 buffer_type = diag_register->buffer_type;
1394 if (!_ctl_diag_capability(ioc, buffer_type)) {
1395 pr_err(MPT3SAS_FMT
1396 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1397 ioc->name, __func__, buffer_type);
1398 return -EPERM;
1399 }
1400
1401 if (ioc->diag_buffer_status[buffer_type] &
1402 MPT3_DIAG_BUFFER_IS_REGISTERED) {
1403 pr_err(MPT3SAS_FMT
1404 "%s: already has a registered buffer for buffer_type(0x%02x)\n",
1405 ioc->name, __func__,
1406 buffer_type);
1407 return -EINVAL;
1408 }
1409
1410 if (diag_register->requested_buffer_size % 4) {
1411 pr_err(MPT3SAS_FMT
1412 "%s: the requested_buffer_size is not 4 byte aligned\n",
1413 ioc->name, __func__);
1414 return -EINVAL;
1415 }
1416
1417 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1418 if (!smid) {
1419 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
1420 ioc->name, __func__);
1421 rc = -EAGAIN;
1422 goto out;
1423 }
1424
1425 rc = 0;
1426 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
1427 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1428 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1429 ioc->ctl_cmds.smid = smid;
1430
1431 request_data = ioc->diag_buffer[buffer_type];
1432 request_data_sz = diag_register->requested_buffer_size;
1433 ioc->unique_id[buffer_type] = diag_register->unique_id;
1434 ioc->diag_buffer_status[buffer_type] = 0;
1435 memcpy(ioc->product_specific[buffer_type],
1436 diag_register->product_specific, MPT3_PRODUCT_SPECIFIC_DWORDS);
1437 ioc->diagnostic_flags[buffer_type] = diag_register->diagnostic_flags;
1438
1439 if (request_data) {
1440 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1441 if (request_data_sz != ioc->diag_buffer_sz[buffer_type]) {
1442 pci_free_consistent(ioc->pdev,
1443 ioc->diag_buffer_sz[buffer_type],
1444 request_data, request_data_dma);
1445 request_data = NULL;
1446 }
1447 }
1448
1449 if (request_data == NULL) {
1450 ioc->diag_buffer_sz[buffer_type] = 0;
1451 ioc->diag_buffer_dma[buffer_type] = 0;
1452 request_data = pci_alloc_consistent(
1453 ioc->pdev, request_data_sz, &request_data_dma);
1454 if (request_data == NULL) {
1455 pr_err(MPT3SAS_FMT "%s: failed allocating memory" \
1456 " for diag buffers, requested size(%d)\n",
1457 ioc->name, __func__, request_data_sz);
1458 mpt3sas_base_free_smid(ioc, smid);
1459 return -ENOMEM;
1460 }
1461 ioc->diag_buffer[buffer_type] = request_data;
1462 ioc->diag_buffer_sz[buffer_type] = request_data_sz;
1463 ioc->diag_buffer_dma[buffer_type] = request_data_dma;
1464 }
1465
1466 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
1467 mpi_request->BufferType = diag_register->buffer_type;
1468 mpi_request->Flags = cpu_to_le32(diag_register->diagnostic_flags);
1469 mpi_request->BufferAddress = cpu_to_le64(request_data_dma);
1470 mpi_request->BufferLength = cpu_to_le32(request_data_sz);
1471 mpi_request->VF_ID = 0; /* TODO */
1472 mpi_request->VP_ID = 0;
1473
1474 dctlprintk(ioc, pr_info(MPT3SAS_FMT
1475 "%s: diag_buffer(0x%p), dma(0x%llx), sz(%d)\n",
1476 ioc->name, __func__, request_data,
1477 (unsigned long long)request_data_dma,
1478 le32_to_cpu(mpi_request->BufferLength)));
1479
1480 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
1481 mpi_request->ProductSpecific[i] =
1482 cpu_to_le32(ioc->product_specific[buffer_type][i]);
1483
1484 init_completion(&ioc->ctl_cmds.done);
1485 mpt3sas_base_put_smid_default(ioc, smid);
1486 timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
1487 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
1488
1489 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1490 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
1491 __func__);
1492 _debug_dump_mf(mpi_request,
1493 sizeof(Mpi2DiagBufferPostRequest_t)/4);
1494 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
1495 issue_reset = 1;
1496 goto issue_host_reset;
1497 }
1498
1499 /* process the completed Reply Message Frame */
1500 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
1501 pr_err(MPT3SAS_FMT "%s: no reply message\n",
1502 ioc->name, __func__);
1503 rc = -EFAULT;
1504 goto out;
1505 }
1506
1507 mpi_reply = ioc->ctl_cmds.reply;
1508 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1509
1510 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1511 ioc->diag_buffer_status[buffer_type] |=
1512 MPT3_DIAG_BUFFER_IS_REGISTERED;
1513 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
1514 ioc->name, __func__));
1515 } else {
1516 pr_info(MPT3SAS_FMT
1517 "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
1518 ioc->name, __func__,
1519 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
1520 rc = -EFAULT;
1521 }
1522
1523 issue_host_reset:
1524 if (issue_reset)
1525 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1526 FORCE_BIG_HAMMER);
1527
1528 out:
1529
1530 if (rc && request_data)
1531 pci_free_consistent(ioc->pdev, request_data_sz,
1532 request_data, request_data_dma);
1533
1534 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1535 return rc;
1536}
1537
1538/**
1539 * mpt3sas_enable_diag_buffer - enabling diag_buffers support driver load time
1540 * @ioc: per adapter object
1541 * @bits_to_register: bitwise field where trace is bit 0, and snapshot is bit 1
1542 *
1543 * This is called when command line option diag_buffer_enable is enabled
1544 * at driver load time.
1545 */
1546void
1547mpt3sas_enable_diag_buffer(struct MPT3SAS_ADAPTER *ioc, u8 bits_to_register)
1548{
1549 struct mpt3_diag_register diag_register;
1550
1551 memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
1552
1553 if (bits_to_register & 1) {
1554 pr_info(MPT3SAS_FMT "registering trace buffer support\n",
1555 ioc->name);
1556 ioc->diag_trigger_master.MasterData =
1557 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
1558 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
1559 /* register for 2MB buffers */
1560 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1561 diag_register.unique_id = 0x7075900;
1562 _ctl_diag_register_2(ioc, &diag_register);
1563 }
1564
1565 if (bits_to_register & 2) {
1566 pr_info(MPT3SAS_FMT "registering snapshot buffer support\n",
1567 ioc->name);
1568 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_SNAPSHOT;
1569 /* register for 2MB buffers */
1570 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1571 diag_register.unique_id = 0x7075901;
1572 _ctl_diag_register_2(ioc, &diag_register);
1573 }
1574
1575 if (bits_to_register & 4) {
1576 pr_info(MPT3SAS_FMT "registering extended buffer support\n",
1577 ioc->name);
1578 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_EXTENDED;
1579 /* register for 2MB buffers */
1580 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1581 diag_register.unique_id = 0x7075901;
1582 _ctl_diag_register_2(ioc, &diag_register);
1583 }
1584}
1585
1586/**
1587 * _ctl_diag_register - application register with driver
1588 * @ioc: per adapter object
1589 * @arg - user space buffer containing ioctl content
1590 *
1591 * This will allow the driver to setup any required buffers that will be
1592 * needed by firmware to communicate with the driver.
1593 */
1594static long
1595_ctl_diag_register(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1596{
1597 struct mpt3_diag_register karg;
1598 long rc;
1599
1600 if (copy_from_user(&karg, arg, sizeof(karg))) {
1601 pr_err("failure at %s:%d/%s()!\n",
1602 __FILE__, __LINE__, __func__);
1603 return -EFAULT;
1604 }
1605
1606 rc = _ctl_diag_register_2(ioc, &karg);
1607 return rc;
1608}
1609
1610/**
1611 * _ctl_diag_unregister - application unregister with driver
1612 * @ioc: per adapter object
1613 * @arg - user space buffer containing ioctl content
1614 *
1615 * This will allow the driver to cleanup any memory allocated for diag
1616 * messages and to free up any resources.
1617 */
1618static long
1619_ctl_diag_unregister(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1620{
1621 struct mpt3_diag_unregister karg;
1622 void *request_data;
1623 dma_addr_t request_data_dma;
1624 u32 request_data_sz;
1625 u8 buffer_type;
1626
1627 if (copy_from_user(&karg, arg, sizeof(karg))) {
1628 pr_err("failure at %s:%d/%s()!\n",
1629 __FILE__, __LINE__, __func__);
1630 return -EFAULT;
1631 }
1632
1633 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1634 __func__));
1635
1636 buffer_type = karg.unique_id & 0x000000ff;
1637 if (!_ctl_diag_capability(ioc, buffer_type)) {
1638 pr_err(MPT3SAS_FMT
1639 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1640 ioc->name, __func__, buffer_type);
1641 return -EPERM;
1642 }
1643
1644 if ((ioc->diag_buffer_status[buffer_type] &
1645 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1646 pr_err(MPT3SAS_FMT
1647 "%s: buffer_type(0x%02x) is not registered\n",
1648 ioc->name, __func__, buffer_type);
1649 return -EINVAL;
1650 }
1651 if ((ioc->diag_buffer_status[buffer_type] &
1652 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
1653 pr_err(MPT3SAS_FMT
1654 "%s: buffer_type(0x%02x) has not been released\n",
1655 ioc->name, __func__, buffer_type);
1656 return -EINVAL;
1657 }
1658
1659 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1660 pr_err(MPT3SAS_FMT
1661 "%s: unique_id(0x%08x) is not registered\n",
1662 ioc->name, __func__, karg.unique_id);
1663 return -EINVAL;
1664 }
1665
1666 request_data = ioc->diag_buffer[buffer_type];
1667 if (!request_data) {
1668 pr_err(MPT3SAS_FMT
1669 "%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
1670 ioc->name, __func__, buffer_type);
1671 return -ENOMEM;
1672 }
1673
1674 request_data_sz = ioc->diag_buffer_sz[buffer_type];
1675 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1676 pci_free_consistent(ioc->pdev, request_data_sz,
1677 request_data, request_data_dma);
1678 ioc->diag_buffer[buffer_type] = NULL;
1679 ioc->diag_buffer_status[buffer_type] = 0;
1680 return 0;
1681}
1682
1683/**
1684 * _ctl_diag_query - query relevant info associated with diag buffers
1685 * @ioc: per adapter object
1686 * @arg - user space buffer containing ioctl content
1687 *
1688 * The application will send only buffer_type and unique_id. Driver will
1689 * inspect unique_id first, if valid, fill in all the info. If unique_id is
1690 * 0x00, the driver will return info specified by Buffer Type.
1691 */
1692static long
1693_ctl_diag_query(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1694{
1695 struct mpt3_diag_query karg;
1696 void *request_data;
1697 int i;
1698 u8 buffer_type;
1699
1700 if (copy_from_user(&karg, arg, sizeof(karg))) {
1701 pr_err("failure at %s:%d/%s()!\n",
1702 __FILE__, __LINE__, __func__);
1703 return -EFAULT;
1704 }
1705
1706 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1707 __func__));
1708
1709 karg.application_flags = 0;
1710 buffer_type = karg.buffer_type;
1711
1712 if (!_ctl_diag_capability(ioc, buffer_type)) {
1713 pr_err(MPT3SAS_FMT
1714 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1715 ioc->name, __func__, buffer_type);
1716 return -EPERM;
1717 }
1718
1719 if ((ioc->diag_buffer_status[buffer_type] &
1720 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1721 pr_err(MPT3SAS_FMT
1722 "%s: buffer_type(0x%02x) is not registered\n",
1723 ioc->name, __func__, buffer_type);
1724 return -EINVAL;
1725 }
1726
1727 if (karg.unique_id & 0xffffff00) {
1728 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1729 pr_err(MPT3SAS_FMT
1730 "%s: unique_id(0x%08x) is not registered\n",
1731 ioc->name, __func__, karg.unique_id);
1732 return -EINVAL;
1733 }
1734 }
1735
1736 request_data = ioc->diag_buffer[buffer_type];
1737 if (!request_data) {
1738 pr_err(MPT3SAS_FMT
1739 "%s: doesn't have buffer for buffer_type(0x%02x)\n",
1740 ioc->name, __func__, buffer_type);
1741 return -ENOMEM;
1742 }
1743
1744 if (ioc->diag_buffer_status[buffer_type] & MPT3_DIAG_BUFFER_IS_RELEASED)
1745 karg.application_flags = (MPT3_APP_FLAGS_APP_OWNED |
1746 MPT3_APP_FLAGS_BUFFER_VALID);
1747 else
1748 karg.application_flags = (MPT3_APP_FLAGS_APP_OWNED |
1749 MPT3_APP_FLAGS_BUFFER_VALID |
1750 MPT3_APP_FLAGS_FW_BUFFER_ACCESS);
1751
1752 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
1753 karg.product_specific[i] =
1754 ioc->product_specific[buffer_type][i];
1755
1756 karg.total_buffer_size = ioc->diag_buffer_sz[buffer_type];
1757 karg.driver_added_buffer_size = 0;
1758 karg.unique_id = ioc->unique_id[buffer_type];
1759 karg.diagnostic_flags = ioc->diagnostic_flags[buffer_type];
1760
1761 if (copy_to_user(arg, &karg, sizeof(struct mpt3_diag_query))) {
1762 pr_err(MPT3SAS_FMT
1763 "%s: unable to write mpt3_diag_query data @ %p\n",
1764 ioc->name, __func__, arg);
1765 return -EFAULT;
1766 }
1767 return 0;
1768}
1769
1770/**
1771 * mpt3sas_send_diag_release - Diag Release Message
1772 * @ioc: per adapter object
1773 * @buffer_type - specifies either TRACE, SNAPSHOT, or EXTENDED
1774 * @issue_reset - specifies whether host reset is required.
1775 *
1776 */
1777int
1778mpt3sas_send_diag_release(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type,
1779 u8 *issue_reset)
1780{
1781 Mpi2DiagReleaseRequest_t *mpi_request;
1782 Mpi2DiagReleaseReply_t *mpi_reply;
1783 u16 smid;
1784 u16 ioc_status;
1785 u32 ioc_state;
1786 int rc;
1787 unsigned long timeleft;
1788
1789 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1790 __func__));
1791
1792 rc = 0;
1793 *issue_reset = 0;
1794
1795 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1796 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1797 if (ioc->diag_buffer_status[buffer_type] &
1798 MPT3_DIAG_BUFFER_IS_REGISTERED)
1799 ioc->diag_buffer_status[buffer_type] |=
1800 MPT3_DIAG_BUFFER_IS_RELEASED;
1801 dctlprintk(ioc, pr_info(MPT3SAS_FMT
1802 "%s: skipping due to FAULT state\n", ioc->name,
1803 __func__));
1804 rc = -EAGAIN;
1805 goto out;
1806 }
1807
1808 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
1809 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
1810 ioc->name, __func__);
1811 rc = -EAGAIN;
1812 goto out;
1813 }
1814
1815 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1816 if (!smid) {
1817 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
1818 ioc->name, __func__);
1819 rc = -EAGAIN;
1820 goto out;
1821 }
1822
1823 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
1824 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1825 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1826 ioc->ctl_cmds.smid = smid;
1827
1828 mpi_request->Function = MPI2_FUNCTION_DIAG_RELEASE;
1829 mpi_request->BufferType = buffer_type;
1830 mpi_request->VF_ID = 0; /* TODO */
1831 mpi_request->VP_ID = 0;
1832
1833 init_completion(&ioc->ctl_cmds.done);
1834 mpt3sas_base_put_smid_default(ioc, smid);
1835 timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
1836 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
1837
1838 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1839 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
1840 __func__);
1841 _debug_dump_mf(mpi_request,
1842 sizeof(Mpi2DiagReleaseRequest_t)/4);
1843 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
1844 *issue_reset = 1;
1845 rc = -EFAULT;
1846 goto out;
1847 }
1848
1849 /* process the completed Reply Message Frame */
1850 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
1851 pr_err(MPT3SAS_FMT "%s: no reply message\n",
1852 ioc->name, __func__);
1853 rc = -EFAULT;
1854 goto out;
1855 }
1856
1857 mpi_reply = ioc->ctl_cmds.reply;
1858 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1859
1860 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1861 ioc->diag_buffer_status[buffer_type] |=
1862 MPT3_DIAG_BUFFER_IS_RELEASED;
1863 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
1864 ioc->name, __func__));
1865 } else {
1866 pr_info(MPT3SAS_FMT
1867 "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
1868 ioc->name, __func__,
1869 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
1870 rc = -EFAULT;
1871 }
1872
1873 out:
1874 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1875 return rc;
1876}
1877
1878/**
1879 * _ctl_diag_release - request to send Diag Release Message to firmware
1880 * @arg - user space buffer containing ioctl content
1881 *
1882 * This allows ownership of the specified buffer to returned to the driver,
1883 * allowing an application to read the buffer without fear that firmware is
1884 * overwritting information in the buffer.
1885 */
1886static long
1887_ctl_diag_release(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1888{
1889 struct mpt3_diag_release karg;
1890 void *request_data;
1891 int rc;
1892 u8 buffer_type;
1893 u8 issue_reset = 0;
1894
1895 if (copy_from_user(&karg, arg, sizeof(karg))) {
1896 pr_err("failure at %s:%d/%s()!\n",
1897 __FILE__, __LINE__, __func__);
1898 return -EFAULT;
1899 }
1900
1901 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1902 __func__));
1903
1904 buffer_type = karg.unique_id & 0x000000ff;
1905 if (!_ctl_diag_capability(ioc, buffer_type)) {
1906 pr_err(MPT3SAS_FMT
1907 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1908 ioc->name, __func__, buffer_type);
1909 return -EPERM;
1910 }
1911
1912 if ((ioc->diag_buffer_status[buffer_type] &
1913 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1914 pr_err(MPT3SAS_FMT
1915 "%s: buffer_type(0x%02x) is not registered\n",
1916 ioc->name, __func__, buffer_type);
1917 return -EINVAL;
1918 }
1919
1920 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1921 pr_err(MPT3SAS_FMT
1922 "%s: unique_id(0x%08x) is not registered\n",
1923 ioc->name, __func__, karg.unique_id);
1924 return -EINVAL;
1925 }
1926
1927 if (ioc->diag_buffer_status[buffer_type] &
1928 MPT3_DIAG_BUFFER_IS_RELEASED) {
1929 pr_err(MPT3SAS_FMT
1930 "%s: buffer_type(0x%02x) is already released\n",
1931 ioc->name, __func__,
1932 buffer_type);
1933 return 0;
1934 }
1935
1936 request_data = ioc->diag_buffer[buffer_type];
1937
1938 if (!request_data) {
1939 pr_err(MPT3SAS_FMT
1940 "%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
1941 ioc->name, __func__, buffer_type);
1942 return -ENOMEM;
1943 }
1944
1945 /* buffers were released by due to host reset */
1946 if ((ioc->diag_buffer_status[buffer_type] &
1947 MPT3_DIAG_BUFFER_IS_DIAG_RESET)) {
1948 ioc->diag_buffer_status[buffer_type] |=
1949 MPT3_DIAG_BUFFER_IS_RELEASED;
1950 ioc->diag_buffer_status[buffer_type] &=
1951 ~MPT3_DIAG_BUFFER_IS_DIAG_RESET;
1952 pr_err(MPT3SAS_FMT
1953 "%s: buffer_type(0x%02x) was released due to host reset\n",
1954 ioc->name, __func__, buffer_type);
1955 return 0;
1956 }
1957
1958 rc = mpt3sas_send_diag_release(ioc, buffer_type, &issue_reset);
1959
1960 if (issue_reset)
1961 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1962 FORCE_BIG_HAMMER);
1963
1964 return rc;
1965}
1966
1967/**
1968 * _ctl_diag_read_buffer - request for copy of the diag buffer
1969 * @ioc: per adapter object
1970 * @arg - user space buffer containing ioctl content
1971 */
1972static long
1973_ctl_diag_read_buffer(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1974{
1975 struct mpt3_diag_read_buffer karg;
1976 struct mpt3_diag_read_buffer __user *uarg = arg;
1977 void *request_data, *diag_data;
1978 Mpi2DiagBufferPostRequest_t *mpi_request;
1979 Mpi2DiagBufferPostReply_t *mpi_reply;
1980 int rc, i;
1981 u8 buffer_type;
1982 unsigned long timeleft, request_size, copy_size;
1983 u16 smid;
1984 u16 ioc_status;
1985 u8 issue_reset = 0;
1986
1987 if (copy_from_user(&karg, arg, sizeof(karg))) {
1988 pr_err("failure at %s:%d/%s()!\n",
1989 __FILE__, __LINE__, __func__);
1990 return -EFAULT;
1991 }
1992
1993 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1994 __func__));
1995
1996 buffer_type = karg.unique_id & 0x000000ff;
1997 if (!_ctl_diag_capability(ioc, buffer_type)) {
1998 pr_err(MPT3SAS_FMT
1999 "%s: doesn't have capability for buffer_type(0x%02x)\n",
2000 ioc->name, __func__, buffer_type);
2001 return -EPERM;
2002 }
2003
2004 if (karg.unique_id != ioc->unique_id[buffer_type]) {
2005 pr_err(MPT3SAS_FMT
2006 "%s: unique_id(0x%08x) is not registered\n",
2007 ioc->name, __func__, karg.unique_id);
2008 return -EINVAL;
2009 }
2010
2011 request_data = ioc->diag_buffer[buffer_type];
2012 if (!request_data) {
2013 pr_err(MPT3SAS_FMT
2014 "%s: doesn't have buffer for buffer_type(0x%02x)\n",
2015 ioc->name, __func__, buffer_type);
2016 return -ENOMEM;
2017 }
2018
2019 request_size = ioc->diag_buffer_sz[buffer_type];
2020
2021 if ((karg.starting_offset % 4) || (karg.bytes_to_read % 4)) {
2022 pr_err(MPT3SAS_FMT "%s: either the starting_offset " \
2023 "or bytes_to_read are not 4 byte aligned\n", ioc->name,
2024 __func__);
2025 return -EINVAL;
2026 }
2027
2028 if (karg.starting_offset > request_size)
2029 return -EINVAL;
2030
2031 diag_data = (void *)(request_data + karg.starting_offset);
2032 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2033 "%s: diag_buffer(%p), offset(%d), sz(%d)\n",
2034 ioc->name, __func__,
2035 diag_data, karg.starting_offset, karg.bytes_to_read));
2036
2037 /* Truncate data on requests that are too large */
2038 if ((diag_data + karg.bytes_to_read < diag_data) ||
2039 (diag_data + karg.bytes_to_read > request_data + request_size))
2040 copy_size = request_size - karg.starting_offset;
2041 else
2042 copy_size = karg.bytes_to_read;
2043
2044 if (copy_to_user((void __user *)uarg->diagnostic_data,
2045 diag_data, copy_size)) {
2046 pr_err(MPT3SAS_FMT
2047 "%s: Unable to write mpt_diag_read_buffer_t data @ %p\n",
2048 ioc->name, __func__, diag_data);
2049 return -EFAULT;
2050 }
2051
2052 if ((karg.flags & MPT3_FLAGS_REREGISTER) == 0)
2053 return 0;
2054
2055 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2056 "%s: Reregister buffer_type(0x%02x)\n",
2057 ioc->name, __func__, buffer_type));
2058 if ((ioc->diag_buffer_status[buffer_type] &
2059 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
2060 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2061 "%s: buffer_type(0x%02x) is still registered\n",
2062 ioc->name, __func__, buffer_type));
2063 return 0;
2064 }
2065 /* Get a free request frame and save the message context.
2066 */
2067
2068 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
2069 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
2070 ioc->name, __func__);
2071 rc = -EAGAIN;
2072 goto out;
2073 }
2074
2075 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
2076 if (!smid) {
2077 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
2078 ioc->name, __func__);
2079 rc = -EAGAIN;
2080 goto out;
2081 }
2082
2083 rc = 0;
2084 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
2085 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
2086 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
2087 ioc->ctl_cmds.smid = smid;
2088
2089 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
2090 mpi_request->BufferType = buffer_type;
2091 mpi_request->BufferLength =
2092 cpu_to_le32(ioc->diag_buffer_sz[buffer_type]);
2093 mpi_request->BufferAddress =
2094 cpu_to_le64(ioc->diag_buffer_dma[buffer_type]);
2095 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
2096 mpi_request->ProductSpecific[i] =
2097 cpu_to_le32(ioc->product_specific[buffer_type][i]);
2098 mpi_request->VF_ID = 0; /* TODO */
2099 mpi_request->VP_ID = 0;
2100
2101 init_completion(&ioc->ctl_cmds.done);
2102 mpt3sas_base_put_smid_default(ioc, smid);
2103 timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
2104 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
2105
2106 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
2107 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
2108 __func__);
2109 _debug_dump_mf(mpi_request,
2110 sizeof(Mpi2DiagBufferPostRequest_t)/4);
2111 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
2112 issue_reset = 1;
2113 goto issue_host_reset;
2114 }
2115
2116 /* process the completed Reply Message Frame */
2117 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
2118 pr_err(MPT3SAS_FMT "%s: no reply message\n",
2119 ioc->name, __func__);
2120 rc = -EFAULT;
2121 goto out;
2122 }
2123
2124 mpi_reply = ioc->ctl_cmds.reply;
2125 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
2126
2127 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
2128 ioc->diag_buffer_status[buffer_type] |=
2129 MPT3_DIAG_BUFFER_IS_REGISTERED;
2130 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
2131 ioc->name, __func__));
2132 } else {
2133 pr_info(MPT3SAS_FMT
2134 "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
2135 ioc->name, __func__,
2136 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
2137 rc = -EFAULT;
2138 }
2139
2140 issue_host_reset:
2141 if (issue_reset)
2142 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2143 FORCE_BIG_HAMMER);
2144
2145 out:
2146
2147 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
2148 return rc;
2149}
2150
2151
2152
2153#ifdef CONFIG_COMPAT
2154/**
2155 * _ctl_compat_mpt_command - convert 32bit pointers to 64bit.
2156 * @ioc: per adapter object
2157 * @cmd - ioctl opcode
2158 * @arg - (struct mpt3_ioctl_command32)
2159 *
2160 * MPT3COMMAND32 - Handle 32bit applications running on 64bit os.
2161 */
2162static long
2163_ctl_compat_mpt_command(struct MPT3SAS_ADAPTER *ioc, unsigned cmd,
2164 void __user *arg)
2165{
2166 struct mpt3_ioctl_command32 karg32;
2167 struct mpt3_ioctl_command32 __user *uarg;
2168 struct mpt3_ioctl_command karg;
2169
2170 if (_IOC_SIZE(cmd) != sizeof(struct mpt3_ioctl_command32))
2171 return -EINVAL;
2172
2173 uarg = (struct mpt3_ioctl_command32 __user *) arg;
2174
2175 if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32))) {
2176 pr_err("failure at %s:%d/%s()!\n",
2177 __FILE__, __LINE__, __func__);
2178 return -EFAULT;
2179 }
2180
2181 memset(&karg, 0, sizeof(struct mpt3_ioctl_command));
2182 karg.hdr.ioc_number = karg32.hdr.ioc_number;
2183 karg.hdr.port_number = karg32.hdr.port_number;
2184 karg.hdr.max_data_size = karg32.hdr.max_data_size;
2185 karg.timeout = karg32.timeout;
2186 karg.max_reply_bytes = karg32.max_reply_bytes;
2187 karg.data_in_size = karg32.data_in_size;
2188 karg.data_out_size = karg32.data_out_size;
2189 karg.max_sense_bytes = karg32.max_sense_bytes;
2190 karg.data_sge_offset = karg32.data_sge_offset;
2191 karg.reply_frame_buf_ptr = compat_ptr(karg32.reply_frame_buf_ptr);
2192 karg.data_in_buf_ptr = compat_ptr(karg32.data_in_buf_ptr);
2193 karg.data_out_buf_ptr = compat_ptr(karg32.data_out_buf_ptr);
2194 karg.sense_data_ptr = compat_ptr(karg32.sense_data_ptr);
2195 return _ctl_do_mpt_command(ioc, karg, &uarg->mf);
2196}
2197#endif
2198
2199/**
2200 * _ctl_ioctl_main - main ioctl entry point
2201 * @file - (struct file)
2202 * @cmd - ioctl opcode
c84b06a4
SR		 2203 * @arg - user space data buffer
2204 * @compat - handles 32 bit applications in 64bit os
2205 * @mpi_version: will be MPI2_VERSION for mpt2ctl ioctl device &
2206 * MPI25_VERSION for mpt3ctl ioctl device.
f92363d1
SR		 2207 */
2208static long
2209_ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg,
c84b06a4 2210 u8 compat, u16 mpi_version)
f92363d1
SR		 2211{
2212 struct MPT3SAS_ADAPTER *ioc;
2213 struct mpt3_ioctl_header ioctl_header;
2214 enum block_state state;
2215 long ret = -EINVAL;
2216
2217 /* get IOCTL header */
2218 if (copy_from_user(&ioctl_header, (char __user *)arg,
2219 sizeof(struct mpt3_ioctl_header))) {
2220 pr_err("failure at %s:%d/%s()!\n",
2221 __FILE__, __LINE__, __func__);
2222 return -EFAULT;
2223 }
2224
c84b06a4
SR		 2225 if (_ctl_verify_adapter(ioctl_header.ioc_number,
2226 &ioc, mpi_version) == -1 || !ioc)
f92363d1
SR		 2227 return -ENODEV;
2228
08c4d550
SR		 2229 /* pci_access_mutex lock acquired by ioctl path */
2230 mutex_lock(&ioc->pci_access_mutex);
2231
f92363d1 2232 if (ioc->shost_recovery || ioc->pci_error_recovery ||
08c4d550
SR		 2233 ioc->is_driver_loading || ioc->remove_host) {
2234 ret = -EAGAIN;
2235 goto out_unlock_pciaccess;
2236 }
f92363d1
SR		 2237
2238 state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING;
2239 if (state == NON_BLOCKING) {
08c4d550
SR		 2240 if (!mutex_trylock(&ioc->ctl_cmds.mutex)) {
2241 ret = -EAGAIN;
2242 goto out_unlock_pciaccess;
2243 }
2244 } else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) {
2245 ret = -ERESTARTSYS;
2246 goto out_unlock_pciaccess;
2247 }
f92363d1
SR		 2248
2249
2250 switch (cmd) {
2251 case MPT3IOCINFO:
2252 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_iocinfo))
2253 ret = _ctl_getiocinfo(ioc, arg);
2254 break;
2255#ifdef CONFIG_COMPAT
2256 case MPT3COMMAND32:
2257#endif
2258 case MPT3COMMAND:
2259 {
2260 struct mpt3_ioctl_command __user *uarg;
2261 struct mpt3_ioctl_command karg;
2262
2263#ifdef CONFIG_COMPAT
2264 if (compat) {
2265 ret = _ctl_compat_mpt_command(ioc, cmd, arg);
2266 break;
2267 }
2268#endif
2269 if (copy_from_user(&karg, arg, sizeof(karg))) {
2270 pr_err("failure at %s:%d/%s()!\n",
2271 __FILE__, __LINE__, __func__);
2272 ret = -EFAULT;
2273 break;
2274 }
2275
2276 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_command)) {
2277 uarg = arg;
2278 ret = _ctl_do_mpt_command(ioc, karg, &uarg->mf);
2279 }
2280 break;
2281 }
2282 case MPT3EVENTQUERY:
2283 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventquery))
2284 ret = _ctl_eventquery(ioc, arg);
2285 break;
2286 case MPT3EVENTENABLE:
2287 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventenable))
2288 ret = _ctl_eventenable(ioc, arg);
2289 break;
2290 case MPT3EVENTREPORT:
2291 ret = _ctl_eventreport(ioc, arg);
2292 break;
2293 case MPT3HARDRESET:
2294 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_diag_reset))
2295 ret = _ctl_do_reset(ioc, arg);
2296 break;
2297 case MPT3BTDHMAPPING:
2298 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_btdh_mapping))
2299 ret = _ctl_btdh_mapping(ioc, arg);
2300 break;
2301 case MPT3DIAGREGISTER:
2302 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_register))
2303 ret = _ctl_diag_register(ioc, arg);
2304 break;
2305 case MPT3DIAGUNREGISTER:
2306 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_unregister))
2307 ret = _ctl_diag_unregister(ioc, arg);
2308 break;
2309 case MPT3DIAGQUERY:
2310 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_query))
2311 ret = _ctl_diag_query(ioc, arg);
2312 break;
2313 case MPT3DIAGRELEASE:
2314 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_release))
2315 ret = _ctl_diag_release(ioc, arg);
2316 break;
2317 case MPT3DIAGREADBUFFER:
2318 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_read_buffer))
2319 ret = _ctl_diag_read_buffer(ioc, arg);
2320 break;
2321 default:
2322 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2323 "unsupported ioctl opcode(0x%08x)\n", ioc->name, cmd));
2324 break;
2325 }
2326
2327 mutex_unlock(&ioc->ctl_cmds.mutex);
08c4d550
SR		 2328out_unlock_pciaccess:
2329 mutex_unlock(&ioc->pci_access_mutex);
f92363d1
SR		 2330 return ret;
2331}
2332
2333/**
c84b06a4 2334 * _ctl_ioctl - mpt3ctl main ioctl entry point (unlocked)
f92363d1
SR		 2335 * @file - (struct file)
2336 * @cmd - ioctl opcode
2337 * @arg -
2338 */
8a7e4c24 2339long
c84b06a4 2340_ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
f92363d1
SR		 2341{
2342 long ret;
2343
c84b06a4
SR		 2344 /* pass MPI25_VERSION value, to indicate that this ioctl cmd
2345 * came from mpt3ctl ioctl device.
2346 */
2347 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0, MPI25_VERSION);
f92363d1
SR		 2348 return ret;
2349}
2350
c84b06a4
SR		 2351/**
2352 * _ctl_mpt2_ioctl - mpt2ctl main ioctl entry point (unlocked)
2353 * @file - (struct file)
2354 * @cmd - ioctl opcode
2355 * @arg -
2356 */
2357long
2358_ctl_mpt2_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2359{
2360 long ret;
2361
2362 /* pass MPI2_VERSION value, to indicate that this ioctl cmd
2363 * came from mpt2ctl ioctl device.
2364 */
2365 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0, MPI2_VERSION);
2366 return ret;
2367}
f92363d1
SR		 2368#ifdef CONFIG_COMPAT
2369/**
c84b06a4 2370 *_ ctl_ioctl_compat - main ioctl entry point (compat)
f92363d1
SR		 2371 * @file -
2372 * @cmd -
2373 * @arg -
2374 *
2375 * This routine handles 32 bit applications in 64bit os.
2376 */
8a7e4c24 2377long
c84b06a4 2378_ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
f92363d1
SR		 2379{
2380 long ret;
2381
c84b06a4
SR		 2382 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1, MPI25_VERSION);
2383 return ret;
2384}
2385
2386/**
2387 *_ ctl_mpt2_ioctl_compat - main ioctl entry point (compat)
2388 * @file -
2389 * @cmd -
2390 * @arg -
2391 *
2392 * This routine handles 32 bit applications in 64bit os.
2393 */
2394long
2395_ctl_mpt2_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
2396{
2397 long ret;
2398
2399 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1, MPI2_VERSION);
f92363d1
SR		 2400 return ret;
2401}
2402#endif
2403
2404/* scsi host attributes */
2405/**
2406 * _ctl_version_fw_show - firmware version
2407 * @cdev - pointer to embedded class device
2408 * @buf - the buffer returned
2409 *
2410 * A sysfs 'read-only' shost attribute.
2411 */
2412static ssize_t
2413_ctl_version_fw_show(struct device *cdev, struct device_attribute *attr,
2414 char *buf)
2415{
2416 struct Scsi_Host *shost = class_to_shost(cdev);
2417 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2418
2419 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2420 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
2421 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
2422 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
2423 ioc->facts.FWVersion.Word & 0x000000FF);
2424}
2425static DEVICE_ATTR(version_fw, S_IRUGO, _ctl_version_fw_show, NULL);
2426
2427/**
2428 * _ctl_version_bios_show - bios version
2429 * @cdev - pointer to embedded class device
2430 * @buf - the buffer returned
2431 *
2432 * A sysfs 'read-only' shost attribute.
2433 */
2434static ssize_t
2435_ctl_version_bios_show(struct device *cdev, struct device_attribute *attr,
2436 char *buf)
2437{
2438 struct Scsi_Host *shost = class_to_shost(cdev);
2439 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2440
2441 u32 version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
2442
2443 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2444 (version & 0xFF000000) >> 24,
2445 (version & 0x00FF0000) >> 16,
2446 (version & 0x0000FF00) >> 8,
2447 version & 0x000000FF);
2448}
2449static DEVICE_ATTR(version_bios, S_IRUGO, _ctl_version_bios_show, NULL);
2450
2451/**
2452 * _ctl_version_mpi_show - MPI (message passing interface) version
2453 * @cdev - pointer to embedded class device
2454 * @buf - the buffer returned
2455 *
2456 * A sysfs 'read-only' shost attribute.
2457 */
2458static ssize_t
2459_ctl_version_mpi_show(struct device *cdev, struct device_attribute *attr,
2460 char *buf)
2461{
2462 struct Scsi_Host *shost = class_to_shost(cdev);
2463 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2464
2465 return snprintf(buf, PAGE_SIZE, "%03x.%02x\n",
2466 ioc->facts.MsgVersion, ioc->facts.HeaderVersion >> 8);
2467}
2468static DEVICE_ATTR(version_mpi, S_IRUGO, _ctl_version_mpi_show, NULL);
2469
2470/**
2471 * _ctl_version_product_show - product name
2472 * @cdev - pointer to embedded class device
2473 * @buf - the buffer returned
2474 *
2475 * A sysfs 'read-only' shost attribute.
2476 */
2477static ssize_t
2478_ctl_version_product_show(struct device *cdev, struct device_attribute *attr,
2479 char *buf)
2480{
2481 struct Scsi_Host *shost = class_to_shost(cdev);
2482 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2483
2484 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.ChipName);
2485}
2486static DEVICE_ATTR(version_product, S_IRUGO, _ctl_version_product_show, NULL);
2487
2488/**
2489 * _ctl_version_nvdata_persistent_show - ndvata persistent version
2490 * @cdev - pointer to embedded class device
2491 * @buf - the buffer returned
2492 *
2493 * A sysfs 'read-only' shost attribute.
2494 */
2495static ssize_t
2496_ctl_version_nvdata_persistent_show(struct device *cdev,
2497 struct device_attribute *attr, char *buf)
2498{
2499 struct Scsi_Host *shost = class_to_shost(cdev);
2500 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2501
2502 return snprintf(buf, PAGE_SIZE, "%08xh\n",
2503 le32_to_cpu(ioc->iounit_pg0.NvdataVersionPersistent.Word));
2504}
2505static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
2506 _ctl_version_nvdata_persistent_show, NULL);
2507
2508/**
2509 * _ctl_version_nvdata_default_show - nvdata default version
2510 * @cdev - pointer to embedded class device
2511 * @buf - the buffer returned
2512 *
2513 * A sysfs 'read-only' shost attribute.
2514 */
2515static ssize_t
2516_ctl_version_nvdata_default_show(struct device *cdev, struct device_attribute
2517 *attr, char *buf)
2518{
2519 struct Scsi_Host *shost = class_to_shost(cdev);
2520 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2521
2522 return snprintf(buf, PAGE_SIZE, "%08xh\n",
2523 le32_to_cpu(ioc->iounit_pg0.NvdataVersionDefault.Word));
2524}
2525static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
2526 _ctl_version_nvdata_default_show, NULL);
2527
2528/**
2529 * _ctl_board_name_show - board name
2530 * @cdev - pointer to embedded class device
2531 * @buf - the buffer returned
2532 *
2533 * A sysfs 'read-only' shost attribute.
2534 */
2535static ssize_t
2536_ctl_board_name_show(struct device *cdev, struct device_attribute *attr,
2537 char *buf)
2538{
2539 struct Scsi_Host *shost = class_to_shost(cdev);
2540 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2541
2542 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardName);
2543}
2544static DEVICE_ATTR(board_name, S_IRUGO, _ctl_board_name_show, NULL);
2545
2546/**
2547 * _ctl_board_assembly_show - board assembly name
2548 * @cdev - pointer to embedded class device
2549 * @buf - the buffer returned
2550 *
2551 * A sysfs 'read-only' shost attribute.
2552 */
2553static ssize_t
2554_ctl_board_assembly_show(struct device *cdev, struct device_attribute *attr,
2555 char *buf)
2556{
2557 struct Scsi_Host *shost = class_to_shost(cdev);
2558 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2559
2560 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardAssembly);
2561}
2562static DEVICE_ATTR(board_assembly, S_IRUGO, _ctl_board_assembly_show, NULL);
2563
2564/**
2565 * _ctl_board_tracer_show - board tracer number
2566 * @cdev - pointer to embedded class device
2567 * @buf - the buffer returned
2568 *
2569 * A sysfs 'read-only' shost attribute.
2570 */
2571static ssize_t
2572_ctl_board_tracer_show(struct device *cdev, struct device_attribute *attr,
2573 char *buf)
2574{
2575 struct Scsi_Host *shost = class_to_shost(cdev);
2576 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2577
2578 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardTracerNumber);
2579}
2580static DEVICE_ATTR(board_tracer, S_IRUGO, _ctl_board_tracer_show, NULL);
2581
2582/**
2583 * _ctl_io_delay_show - io missing delay
2584 * @cdev - pointer to embedded class device
2585 * @buf - the buffer returned
2586 *
2587 * This is for firmware implemention for deboucing device
2588 * removal events.
2589 *
2590 * A sysfs 'read-only' shost attribute.
2591 */
2592static ssize_t
2593_ctl_io_delay_show(struct device *cdev, struct device_attribute *attr,
2594 char *buf)
2595{
2596 struct Scsi_Host *shost = class_to_shost(cdev);
2597 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2598
2599 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
2600}
2601static DEVICE_ATTR(io_delay, S_IRUGO, _ctl_io_delay_show, NULL);
2602
2603/**
2604 * _ctl_device_delay_show - device missing delay
2605 * @cdev - pointer to embedded class device
2606 * @buf - the buffer returned
2607 *
2608 * This is for firmware implemention for deboucing device
2609 * removal events.
2610 *
2611 * A sysfs 'read-only' shost attribute.
2612 */
2613static ssize_t
2614_ctl_device_delay_show(struct device *cdev, struct device_attribute *attr,
2615 char *buf)
2616{
2617 struct Scsi_Host *shost = class_to_shost(cdev);
2618 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2619
2620 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
2621}
2622static DEVICE_ATTR(device_delay, S_IRUGO, _ctl_device_delay_show, NULL);
2623
2624/**
2625 * _ctl_fw_queue_depth_show - global credits
2626 * @cdev - pointer to embedded class device
2627 * @buf - the buffer returned
2628 *
2629 * This is firmware queue depth limit
2630 *
2631 * A sysfs 'read-only' shost attribute.
2632 */
2633static ssize_t
2634_ctl_fw_queue_depth_show(struct device *cdev, struct device_attribute *attr,
2635 char *buf)
2636{
2637 struct Scsi_Host *shost = class_to_shost(cdev);
2638 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2639
2640 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->facts.RequestCredit);
2641}
2642static DEVICE_ATTR(fw_queue_depth, S_IRUGO, _ctl_fw_queue_depth_show, NULL);
2643
2644/**
2645 * _ctl_sas_address_show - sas address
2646 * @cdev - pointer to embedded class device
2647 * @buf - the buffer returned
2648 *
2649 * This is the controller sas address
2650 *
2651 * A sysfs 'read-only' shost attribute.
2652 */
2653static ssize_t
2654_ctl_host_sas_address_show(struct device *cdev, struct device_attribute *attr,
2655 char *buf)
2656
2657{
2658 struct Scsi_Host *shost = class_to_shost(cdev);
2659 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2660
2661 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
2662 (unsigned long long)ioc->sas_hba.sas_address);
2663}
2664static DEVICE_ATTR(host_sas_address, S_IRUGO,
2665 _ctl_host_sas_address_show, NULL);
2666
2667/**
2668 * _ctl_logging_level_show - logging level
2669 * @cdev - pointer to embedded class device
2670 * @buf - the buffer returned
2671 *
2672 * A sysfs 'read/write' shost attribute.
2673 */
2674static ssize_t
2675_ctl_logging_level_show(struct device *cdev, struct device_attribute *attr,
2676 char *buf)
2677{
2678 struct Scsi_Host *shost = class_to_shost(cdev);
2679 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2680
2681 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->logging_level);
2682}
2683static ssize_t
2684_ctl_logging_level_store(struct device *cdev, struct device_attribute *attr,
2685 const char *buf, size_t count)
2686{
2687 struct Scsi_Host *shost = class_to_shost(cdev);
2688 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2689 int val = 0;
2690
2691 if (sscanf(buf, "%x", &val) != 1)
2692 return -EINVAL;
2693
2694 ioc->logging_level = val;
2695 pr_info(MPT3SAS_FMT "logging_level=%08xh\n", ioc->name,
2696 ioc->logging_level);
2697 return strlen(buf);
2698}
2699static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR, _ctl_logging_level_show,
2700 _ctl_logging_level_store);
2701
2702/**
2703 * _ctl_fwfault_debug_show - show/store fwfault_debug
2704 * @cdev - pointer to embedded class device
2705 * @buf - the buffer returned
2706 *
2707 * mpt3sas_fwfault_debug is command line option
2708 * A sysfs 'read/write' shost attribute.
2709 */
2710static ssize_t
2711_ctl_fwfault_debug_show(struct device *cdev, struct device_attribute *attr,
2712 char *buf)
2713{
2714 struct Scsi_Host *shost = class_to_shost(cdev);
2715 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2716
2717 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->fwfault_debug);
2718}
2719static ssize_t
2720_ctl_fwfault_debug_store(struct device *cdev, struct device_attribute *attr,
2721 const char *buf, size_t count)
2722{
2723 struct Scsi_Host *shost = class_to_shost(cdev);
2724 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2725 int val = 0;
2726
2727 if (sscanf(buf, "%d", &val) != 1)
2728 return -EINVAL;
2729
2730 ioc->fwfault_debug = val;
2731 pr_info(MPT3SAS_FMT "fwfault_debug=%d\n", ioc->name,
2732 ioc->fwfault_debug);
2733 return strlen(buf);
2734}
2735static DEVICE_ATTR(fwfault_debug, S_IRUGO | S_IWUSR,
2736 _ctl_fwfault_debug_show, _ctl_fwfault_debug_store);
2737
2738/**
2739 * _ctl_ioc_reset_count_show - ioc reset count
2740 * @cdev - pointer to embedded class device
2741 * @buf - the buffer returned
2742 *
2743 * This is firmware queue depth limit
2744 *
2745 * A sysfs 'read-only' shost attribute.
2746 */
2747static ssize_t
2748_ctl_ioc_reset_count_show(struct device *cdev, struct device_attribute *attr,
2749 char *buf)
2750{
2751 struct Scsi_Host *shost = class_to_shost(cdev);
2752 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2753
2754 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->ioc_reset_count);
2755}
2756static DEVICE_ATTR(ioc_reset_count, S_IRUGO, _ctl_ioc_reset_count_show, NULL);
2757
2758/**
2759 * _ctl_ioc_reply_queue_count_show - number of reply queues
2760 * @cdev - pointer to embedded class device
2761 * @buf - the buffer returned
2762 *
2763 * This is number of reply queues
2764 *
2765 * A sysfs 'read-only' shost attribute.
2766 */
2767static ssize_t
2768_ctl_ioc_reply_queue_count_show(struct device *cdev,
2769 struct device_attribute *attr, char *buf)
2770{
2771 u8 reply_queue_count;
2772 struct Scsi_Host *shost = class_to_shost(cdev);
2773 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2774
2775 if ((ioc->facts.IOCCapabilities &
2776 MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX) && ioc->msix_enable)
2777 reply_queue_count = ioc->reply_queue_count;
2778 else
2779 reply_queue_count = 1;
2780
2781 return snprintf(buf, PAGE_SIZE, "%d\n", reply_queue_count);
2782}
2783static DEVICE_ATTR(reply_queue_count, S_IRUGO, _ctl_ioc_reply_queue_count_show,
2784 NULL);
2785
42263095
SR		 2786/**
2787 * _ctl_BRM_status_show - Backup Rail Monitor Status
2788 * @cdev - pointer to embedded class device
2789 * @buf - the buffer returned
2790 *
2791 * This is number of reply queues
2792 *
2793 * A sysfs 'read-only' shost attribute.
2794 */
2795static ssize_t
2796_ctl_BRM_status_show(struct device *cdev, struct device_attribute *attr,
2797 char *buf)
2798{
2799 struct Scsi_Host *shost = class_to_shost(cdev);
2800 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2801 Mpi2IOUnitPage3_t *io_unit_pg3 = NULL;
2802 Mpi2ConfigReply_t mpi_reply;
2803 u16 backup_rail_monitor_status = 0;
2804 u16 ioc_status;
2805 int sz;
2806 ssize_t rc = 0;
2807
2808 if (!ioc->is_warpdrive) {
2809 pr_err(MPT3SAS_FMT "%s: BRM attribute is only for"
2810 " warpdrive\n", ioc->name, __func__);
2811 goto out;
2812 }
08c4d550
SR		 2813 /* pci_access_mutex lock acquired by sysfs show path */
2814 mutex_lock(&ioc->pci_access_mutex);
2815 if (ioc->pci_error_recovery || ioc->remove_host) {
2816 mutex_unlock(&ioc->pci_access_mutex);
2817 return 0;
2818 }
42263095
SR		 2819
2820 /* allocate upto GPIOVal 36 entries */
2821 sz = offsetof(Mpi2IOUnitPage3_t, GPIOVal) + (sizeof(u16) * 36);
2822 io_unit_pg3 = kzalloc(sz, GFP_KERNEL);
2823 if (!io_unit_pg3) {
2824 pr_err(MPT3SAS_FMT "%s: failed allocating memory "
2825 "for iounit_pg3: (%d) bytes\n", ioc->name, __func__, sz);
2826 goto out;
2827 }
2828
2829 if (mpt3sas_config_get_iounit_pg3(ioc, &mpi_reply, io_unit_pg3, sz) !=
2830 0) {
2831 pr_err(MPT3SAS_FMT
2832 "%s: failed reading iounit_pg3\n", ioc->name,
2833 __func__);
2834 goto out;
2835 }
2836
2837 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
2838 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
2839 pr_err(MPT3SAS_FMT "%s: iounit_pg3 failed with "
2840 "ioc_status(0x%04x)\n", ioc->name, __func__, ioc_status);
2841 goto out;
2842 }
2843
2844 if (io_unit_pg3->GPIOCount < 25) {
2845 pr_err(MPT3SAS_FMT "%s: iounit_pg3->GPIOCount less than "
2846 "25 entries, detected (%d) entries\n", ioc->name, __func__,
2847 io_unit_pg3->GPIOCount);
2848 goto out;
2849 }
2850
2851 /* BRM status is in bit zero of GPIOVal[24] */
2852 backup_rail_monitor_status = le16_to_cpu(io_unit_pg3->GPIOVal[24]);
2853 rc = snprintf(buf, PAGE_SIZE, "%d\n", (backup_rail_monitor_status & 1));
2854
2855 out:
2856 kfree(io_unit_pg3);
08c4d550 2857 mutex_unlock(&ioc->pci_access_mutex);
42263095
SR		 2858 return rc;
2859}
2860static DEVICE_ATTR(BRM_status, S_IRUGO, _ctl_BRM_status_show, NULL);
42263095 2861
f92363d1
SR		 2862struct DIAG_BUFFER_START {
2863 __le32 Size;
2864 __le32 DiagVersion;
2865 u8 BufferType;
2866 u8 Reserved[3];
2867 __le32 Reserved1;
2868 __le32 Reserved2;
2869 __le32 Reserved3;
2870};
2871
2872/**
2873 * _ctl_host_trace_buffer_size_show - host buffer size (trace only)
2874 * @cdev - pointer to embedded class device
2875 * @buf - the buffer returned
2876 *
2877 * A sysfs 'read-only' shost attribute.
2878 */
2879static ssize_t
2880_ctl_host_trace_buffer_size_show(struct device *cdev,
2881 struct device_attribute *attr, char *buf)
2882{
2883 struct Scsi_Host *shost = class_to_shost(cdev);
2884 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2885 u32 size = 0;
2886 struct DIAG_BUFFER_START *request_data;
2887
2888 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
2889 pr_err(MPT3SAS_FMT
2890 "%s: host_trace_buffer is not registered\n",
2891 ioc->name, __func__);
2892 return 0;
2893 }
2894
2895 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2896 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
2897 pr_err(MPT3SAS_FMT
2898 "%s: host_trace_buffer is not registered\n",
2899 ioc->name, __func__);
2900 return 0;
2901 }
2902
2903 request_data = (struct DIAG_BUFFER_START *)
2904 ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE];
2905 if ((le32_to_cpu(request_data->DiagVersion) == 0x00000000 ||
2906 le32_to_cpu(request_data->DiagVersion) == 0x01000000 ||
2907 le32_to_cpu(request_data->DiagVersion) == 0x01010000) &&
2908 le32_to_cpu(request_data->Reserved3) == 0x4742444c)
2909 size = le32_to_cpu(request_data->Size);
2910
2911 ioc->ring_buffer_sz = size;
2912 return snprintf(buf, PAGE_SIZE, "%d\n", size);
2913}
2914static DEVICE_ATTR(host_trace_buffer_size, S_IRUGO,
2915 _ctl_host_trace_buffer_size_show, NULL);
2916
2917/**
2918 * _ctl_host_trace_buffer_show - firmware ring buffer (trace only)
2919 * @cdev - pointer to embedded class device
2920 * @buf - the buffer returned
2921 *
2922 * A sysfs 'read/write' shost attribute.
2923 *
2924 * You will only be able to read 4k bytes of ring buffer at a time.
2925 * In order to read beyond 4k bytes, you will have to write out the
2926 * offset to the same attribute, it will move the pointer.
2927 */
2928static ssize_t
2929_ctl_host_trace_buffer_show(struct device *cdev, struct device_attribute *attr,
2930 char *buf)
2931{
2932 struct Scsi_Host *shost = class_to_shost(cdev);
2933 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2934 void *request_data;
2935 u32 size;
2936
2937 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
2938 pr_err(MPT3SAS_FMT
2939 "%s: host_trace_buffer is not registered\n",
2940 ioc->name, __func__);
2941 return 0;
2942 }
2943
2944 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2945 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
2946 pr_err(MPT3SAS_FMT
2947 "%s: host_trace_buffer is not registered\n",
2948 ioc->name, __func__);
2949 return 0;
2950 }
2951
2952 if (ioc->ring_buffer_offset > ioc->ring_buffer_sz)
2953 return 0;
2954
2955 size = ioc->ring_buffer_sz - ioc->ring_buffer_offset;
2956 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size;
2957 request_data = ioc->diag_buffer[0] + ioc->ring_buffer_offset;
2958 memcpy(buf, request_data, size);
2959 return size;
2960}
2961
2962static ssize_t
2963_ctl_host_trace_buffer_store(struct device *cdev, struct device_attribute *attr,
2964 const char *buf, size_t count)
2965{
2966 struct Scsi_Host *shost = class_to_shost(cdev);
2967 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2968 int val = 0;
2969
2970 if (sscanf(buf, "%d", &val) != 1)
2971 return -EINVAL;
2972
2973 ioc->ring_buffer_offset = val;
2974 return strlen(buf);
2975}
2976static DEVICE_ATTR(host_trace_buffer, S_IRUGO | S_IWUSR,
2977 _ctl_host_trace_buffer_show, _ctl_host_trace_buffer_store);
2978
2979
2980/*****************************************/
2981
2982/**
2983 * _ctl_host_trace_buffer_enable_show - firmware ring buffer (trace only)
2984 * @cdev - pointer to embedded class device
2985 * @buf - the buffer returned
2986 *
2987 * A sysfs 'read/write' shost attribute.
2988 *
2989 * This is a mechnism to post/release host_trace_buffers
2990 */
2991static ssize_t
2992_ctl_host_trace_buffer_enable_show(struct device *cdev,
2993 struct device_attribute *attr, char *buf)
2994{
2995 struct Scsi_Host *shost = class_to_shost(cdev);
2996 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2997
2998 if ((!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) ||
2999 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3000 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0))
3001 return snprintf(buf, PAGE_SIZE, "off\n");
3002 else if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3003 MPT3_DIAG_BUFFER_IS_RELEASED))
3004 return snprintf(buf, PAGE_SIZE, "release\n");
3005 else
3006 return snprintf(buf, PAGE_SIZE, "post\n");
3007}
3008
3009static ssize_t
3010_ctl_host_trace_buffer_enable_store(struct device *cdev,
3011 struct device_attribute *attr, const char *buf, size_t count)
3012{
3013 struct Scsi_Host *shost = class_to_shost(cdev);
3014 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3015 char str[10] = "";
3016 struct mpt3_diag_register diag_register;
3017 u8 issue_reset = 0;
3018
3019 /* don't allow post/release occurr while recovery is active */
3020 if (ioc->shost_recovery || ioc->remove_host ||
3021 ioc->pci_error_recovery || ioc->is_driver_loading)
3022 return -EBUSY;
3023
3024 if (sscanf(buf, "%9s", str) != 1)
3025 return -EINVAL;
3026
3027 if (!strcmp(str, "post")) {
3028 /* exit out if host buffers are already posted */
3029 if ((ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) &&
3030 (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3031 MPT3_DIAG_BUFFER_IS_REGISTERED) &&
3032 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3033 MPT3_DIAG_BUFFER_IS_RELEASED) == 0))
3034 goto out;
3035 memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
3036 pr_info(MPT3SAS_FMT "posting host trace buffers\n",
3037 ioc->name);
3038 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
3039 diag_register.requested_buffer_size = (1024 * 1024);
3040 diag_register.unique_id = 0x7075900;
3041 ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] = 0;
3042 _ctl_diag_register_2(ioc, &diag_register);
3043 } else if (!strcmp(str, "release")) {
3044 /* exit out if host buffers are already released */
3045 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE])
3046 goto out;
3047 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3048 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0)
3049 goto out;
3050 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3051 MPT3_DIAG_BUFFER_IS_RELEASED))
3052 goto out;
3053 pr_info(MPT3SAS_FMT "releasing host trace buffer\n",
3054 ioc->name);
3055 mpt3sas_send_diag_release(ioc, MPI2_DIAG_BUF_TYPE_TRACE,
3056 &issue_reset);
3057 }
3058
3059 out:
3060 return strlen(buf);
3061}
3062static DEVICE_ATTR(host_trace_buffer_enable, S_IRUGO | S_IWUSR,
3063 _ctl_host_trace_buffer_enable_show,
3064 _ctl_host_trace_buffer_enable_store);
3065
3066/*********** diagnostic trigger suppport *********************************/
3067
3068/**
3069 * _ctl_diag_trigger_master_show - show the diag_trigger_master attribute
3070 * @cdev - pointer to embedded class device
3071 * @buf - the buffer returned
3072 *
3073 * A sysfs 'read/write' shost attribute.
3074 */
3075static ssize_t
3076_ctl_diag_trigger_master_show(struct device *cdev,
3077 struct device_attribute *attr, char *buf)
3078
3079{
3080 struct Scsi_Host *shost = class_to_shost(cdev);
3081 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3082 unsigned long flags;
3083 ssize_t rc;
3084
3085 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3086 rc = sizeof(struct SL_WH_MASTER_TRIGGER_T);
3087 memcpy(buf, &ioc->diag_trigger_master, rc);
3088 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3089 return rc;
3090}
3091
3092/**
3093 * _ctl_diag_trigger_master_store - store the diag_trigger_master attribute
3094 * @cdev - pointer to embedded class device
3095 * @buf - the buffer returned
3096 *
3097 * A sysfs 'read/write' shost attribute.
3098 */
3099static ssize_t
3100_ctl_diag_trigger_master_store(struct device *cdev,
3101 struct device_attribute *attr, const char *buf, size_t count)
3102
3103{
3104 struct Scsi_Host *shost = class_to_shost(cdev);
3105 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3106 unsigned long flags;
3107 ssize_t rc;
3108
3109 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3110 rc = min(sizeof(struct SL_WH_MASTER_TRIGGER_T), count);
3111 memset(&ioc->diag_trigger_master, 0,
3112 sizeof(struct SL_WH_MASTER_TRIGGER_T));
3113 memcpy(&ioc->diag_trigger_master, buf, rc);
3114 ioc->diag_trigger_master.MasterData |=
3115 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
3116 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3117 return rc;
3118}
3119static DEVICE_ATTR(diag_trigger_master, S_IRUGO | S_IWUSR,
3120 _ctl_diag_trigger_master_show, _ctl_diag_trigger_master_store);
3121
3122
3123/**
3124 * _ctl_diag_trigger_event_show - show the diag_trigger_event attribute
3125 * @cdev - pointer to embedded class device
3126 * @buf - the buffer returned
3127 *
3128 * A sysfs 'read/write' shost attribute.
3129 */
3130static ssize_t
3131_ctl_diag_trigger_event_show(struct device *cdev,
3132 struct device_attribute *attr, char *buf)
3133{
3134 struct Scsi_Host *shost = class_to_shost(cdev);
3135 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3136 unsigned long flags;
3137 ssize_t rc;
3138
3139 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3140 rc = sizeof(struct SL_WH_EVENT_TRIGGERS_T);
3141 memcpy(buf, &ioc->diag_trigger_event, rc);
3142 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3143 return rc;
3144}
3145
3146/**
3147 * _ctl_diag_trigger_event_store - store the diag_trigger_event attribute
3148 * @cdev - pointer to embedded class device
3149 * @buf - the buffer returned
3150 *
3151 * A sysfs 'read/write' shost attribute.
3152 */
3153static ssize_t
3154_ctl_diag_trigger_event_store(struct device *cdev,
3155 struct device_attribute *attr, const char *buf, size_t count)
3156
3157{
3158 struct Scsi_Host *shost = class_to_shost(cdev);
3159 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3160 unsigned long flags;
3161 ssize_t sz;
3162
3163 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3164 sz = min(sizeof(struct SL_WH_EVENT_TRIGGERS_T), count);
3165 memset(&ioc->diag_trigger_event, 0,
3166 sizeof(struct SL_WH_EVENT_TRIGGERS_T));
3167 memcpy(&ioc->diag_trigger_event, buf, sz);
3168 if (ioc->diag_trigger_event.ValidEntries > NUM_VALID_ENTRIES)
3169 ioc->diag_trigger_event.ValidEntries = NUM_VALID_ENTRIES;
3170 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3171 return sz;
3172}
3173static DEVICE_ATTR(diag_trigger_event, S_IRUGO | S_IWUSR,
3174 _ctl_diag_trigger_event_show, _ctl_diag_trigger_event_store);
3175
3176
3177/**
3178 * _ctl_diag_trigger_scsi_show - show the diag_trigger_scsi attribute
3179 * @cdev - pointer to embedded class device
3180 * @buf - the buffer returned
3181 *
3182 * A sysfs 'read/write' shost attribute.
3183 */
3184static ssize_t
3185_ctl_diag_trigger_scsi_show(struct device *cdev,
3186 struct device_attribute *attr, char *buf)
3187{
3188 struct Scsi_Host *shost = class_to_shost(cdev);
3189 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3190 unsigned long flags;
3191 ssize_t rc;
3192
3193 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3194 rc = sizeof(struct SL_WH_SCSI_TRIGGERS_T);
3195 memcpy(buf, &ioc->diag_trigger_scsi, rc);
3196 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3197 return rc;
3198}
3199
3200/**
3201 * _ctl_diag_trigger_scsi_store - store the diag_trigger_scsi attribute
3202 * @cdev - pointer to embedded class device
3203 * @buf - the buffer returned
3204 *
3205 * A sysfs 'read/write' shost attribute.
3206 */
3207static ssize_t
3208_ctl_diag_trigger_scsi_store(struct device *cdev,
3209 struct device_attribute *attr, const char *buf, size_t count)
3210{
3211 struct Scsi_Host *shost = class_to_shost(cdev);
3212 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3213 unsigned long flags;
3214 ssize_t sz;
3215
3216 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3217 sz = min(sizeof(struct SL_WH_SCSI_TRIGGERS_T), count);
3218 memset(&ioc->diag_trigger_scsi, 0,
3219 sizeof(struct SL_WH_EVENT_TRIGGERS_T));
3220 memcpy(&ioc->diag_trigger_scsi, buf, sz);
3221 if (ioc->diag_trigger_scsi.ValidEntries > NUM_VALID_ENTRIES)
3222 ioc->diag_trigger_scsi.ValidEntries = NUM_VALID_ENTRIES;
3223 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3224 return sz;
3225}
3226static DEVICE_ATTR(diag_trigger_scsi, S_IRUGO | S_IWUSR,
3227 _ctl_diag_trigger_scsi_show, _ctl_diag_trigger_scsi_store);
3228
3229
3230/**
3231 * _ctl_diag_trigger_scsi_show - show the diag_trigger_mpi attribute
3232 * @cdev - pointer to embedded class device
3233 * @buf - the buffer returned
3234 *
3235 * A sysfs 'read/write' shost attribute.
3236 */
3237static ssize_t
3238_ctl_diag_trigger_mpi_show(struct device *cdev,
3239 struct device_attribute *attr, char *buf)
3240{
3241 struct Scsi_Host *shost = class_to_shost(cdev);
3242 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3243 unsigned long flags;
3244 ssize_t rc;
3245
3246 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3247 rc = sizeof(struct SL_WH_MPI_TRIGGERS_T);
3248 memcpy(buf, &ioc->diag_trigger_mpi, rc);
3249 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3250 return rc;
3251}
3252
3253/**
3254 * _ctl_diag_trigger_mpi_store - store the diag_trigger_mpi attribute
3255 * @cdev - pointer to embedded class device
3256 * @buf - the buffer returned
3257 *
3258 * A sysfs 'read/write' shost attribute.
3259 */
3260static ssize_t
3261_ctl_diag_trigger_mpi_store(struct device *cdev,
3262 struct device_attribute *attr, const char *buf, size_t count)
3263{
3264 struct Scsi_Host *shost = class_to_shost(cdev);
3265 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3266 unsigned long flags;
3267 ssize_t sz;
3268
3269 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3270 sz = min(sizeof(struct SL_WH_MPI_TRIGGERS_T), count);
3271 memset(&ioc->diag_trigger_mpi, 0,
66331e8c 3272 sizeof(ioc->diag_trigger_mpi));
f92363d1
SR		 3273 memcpy(&ioc->diag_trigger_mpi, buf, sz);
3274 if (ioc->diag_trigger_mpi.ValidEntries > NUM_VALID_ENTRIES)
3275 ioc->diag_trigger_mpi.ValidEntries = NUM_VALID_ENTRIES;
3276 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3277 return sz;
3278}
3279
3280static DEVICE_ATTR(diag_trigger_mpi, S_IRUGO | S_IWUSR,
3281 _ctl_diag_trigger_mpi_show, _ctl_diag_trigger_mpi_store);
3282
3283/*********** diagnostic trigger suppport *** END ****************************/
3284
3285
3286
3287/*****************************************/
3288
3289struct device_attribute *mpt3sas_host_attrs[] = {
3290 &dev_attr_version_fw,
3291 &dev_attr_version_bios,
3292 &dev_attr_version_mpi,
3293 &dev_attr_version_product,
3294 &dev_attr_version_nvdata_persistent,
3295 &dev_attr_version_nvdata_default,
3296 &dev_attr_board_name,
3297 &dev_attr_board_assembly,
3298 &dev_attr_board_tracer,
3299 &dev_attr_io_delay,
3300 &dev_attr_device_delay,
3301 &dev_attr_logging_level,
3302 &dev_attr_fwfault_debug,
3303 &dev_attr_fw_queue_depth,
3304 &dev_attr_host_sas_address,
3305 &dev_attr_ioc_reset_count,
3306 &dev_attr_host_trace_buffer_size,
3307 &dev_attr_host_trace_buffer,
3308 &dev_attr_host_trace_buffer_enable,
3309 &dev_attr_reply_queue_count,
3310 &dev_attr_diag_trigger_master,
3311 &dev_attr_diag_trigger_event,
3312 &dev_attr_diag_trigger_scsi,
3313 &dev_attr_diag_trigger_mpi,
42263095 3314 &dev_attr_BRM_status,
f92363d1
SR		 3315 NULL,
3316};
3317
3318/* device attributes */
3319
3320/**
3321 * _ctl_device_sas_address_show - sas address
3322 * @cdev - pointer to embedded class device
3323 * @buf - the buffer returned
3324 *
3325 * This is the sas address for the target
3326 *
3327 * A sysfs 'read-only' shost attribute.
3328 */
3329static ssize_t
3330_ctl_device_sas_address_show(struct device *dev, struct device_attribute *attr,
3331 char *buf)
3332{
3333 struct scsi_device *sdev = to_scsi_device(dev);
3334 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3335
3336 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
3337 (unsigned long long)sas_device_priv_data->sas_target->sas_address);
3338}
3339static DEVICE_ATTR(sas_address, S_IRUGO, _ctl_device_sas_address_show, NULL);
3340
3341/**
3342 * _ctl_device_handle_show - device handle
3343 * @cdev - pointer to embedded class device
3344 * @buf - the buffer returned
3345 *
3346 * This is the firmware assigned device handle
3347 *
3348 * A sysfs 'read-only' shost attribute.
3349 */
3350static ssize_t
3351_ctl_device_handle_show(struct device *dev, struct device_attribute *attr,
3352 char *buf)
3353{
3354 struct scsi_device *sdev = to_scsi_device(dev);
3355 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3356
3357 return snprintf(buf, PAGE_SIZE, "0x%04x\n",
3358 sas_device_priv_data->sas_target->handle);
3359}
3360static DEVICE_ATTR(sas_device_handle, S_IRUGO, _ctl_device_handle_show, NULL);
3361
3362struct device_attribute *mpt3sas_dev_attrs[] = {
3363 &dev_attr_sas_address,
3364 &dev_attr_sas_device_handle,
3365 NULL,
3366};
3367
c84b06a4
SR		 3368/* file operations table for mpt3ctl device */
3369static const struct file_operations ctl_fops = {
3370 .owner = THIS_MODULE,
3371 .unlocked_ioctl = _ctl_ioctl,
3372 .poll = _ctl_poll,
3373 .fasync = _ctl_fasync,
3374#ifdef CONFIG_COMPAT
3375 .compat_ioctl = _ctl_ioctl_compat,
3376#endif
3377};
3378
3379/* file operations table for mpt2ctl device */
3380static const struct file_operations ctl_gen2_fops = {
3381 .owner = THIS_MODULE,
3382 .unlocked_ioctl = _ctl_mpt2_ioctl,
3383 .poll = _ctl_poll,
3384 .fasync = _ctl_fasync,
3385#ifdef CONFIG_COMPAT
3386 .compat_ioctl = _ctl_mpt2_ioctl_compat,
3387#endif
3388};
3389
3390static struct miscdevice ctl_dev = {
3391 .minor = MPT3SAS_MINOR,
3392 .name = MPT3SAS_DEV_NAME,
3393 .fops = &ctl_fops,
3394};
3395
3396static struct miscdevice gen2_ctl_dev = {
3397 .minor = MPT2SAS_MINOR,
3398 .name = MPT2SAS_DEV_NAME,
3399 .fops = &ctl_gen2_fops,
3400};
3401
f92363d1 3402/**
c84b06a4 3403 * mpt3sas_ctl_init - main entry point for ctl.
f92363d1
SR		 3404 *
3405 */
3406void
c84b06a4 3407mpt3sas_ctl_init(ushort hbas_to_enumerate)
f92363d1
SR		 3408{
3409 async_queue = NULL;
c84b06a4
SR		 3410
3411 /* Don't register mpt3ctl ioctl device if
3412 * hbas_to_enumarate is one.
3413 */
3414 if (hbas_to_enumerate != 1)
3415 if (misc_register(&ctl_dev) < 0)
3416 pr_err("%s can't register misc device [minor=%d]\n",
3417 MPT3SAS_DRIVER_NAME, MPT3SAS_MINOR);
3418
3419 /* Don't register mpt3ctl ioctl device if
3420 * hbas_to_enumarate is two.
3421 */
3422 if (hbas_to_enumerate != 2)
3423 if (misc_register(&gen2_ctl_dev) < 0)
3424 pr_err("%s can't register misc device [minor=%d]\n",
3425 MPT2SAS_DRIVER_NAME, MPT2SAS_MINOR);
3426
f92363d1
SR		 3427 init_waitqueue_head(&ctl_poll_wait);
3428}
3429
3430/**
c84b06a4 3431 * mpt3sas_ctl_exit - exit point for ctl
f92363d1
SR		 3432 *
3433 */
3434void
c84b06a4 3435mpt3sas_ctl_exit(ushort hbas_to_enumerate)
f92363d1
SR		 3436{
3437 struct MPT3SAS_ADAPTER *ioc;
3438 int i;
3439
3440 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
3441
3442 /* free memory associated to diag buffers */
3443 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
3444 if (!ioc->diag_buffer[i])
3445 continue;
3446 if (!(ioc->diag_buffer_status[i] &
3447 MPT3_DIAG_BUFFER_IS_REGISTERED))
3448 continue;
3449 if ((ioc->diag_buffer_status[i] &
3450 MPT3_DIAG_BUFFER_IS_RELEASED))
3451 continue;
3452 pci_free_consistent(ioc->pdev, ioc->diag_buffer_sz[i],
3453 ioc->diag_buffer[i], ioc->diag_buffer_dma[i]);
3454 ioc->diag_buffer[i] = NULL;
3455 ioc->diag_buffer_status[i] = 0;
3456 }
3457
3458 kfree(ioc->event_log);
3459 }
c84b06a4
SR		 3460 if (hbas_to_enumerate != 1)
3461 misc_deregister(&ctl_dev);
3462 if (hbas_to_enumerate != 2)
3463 misc_deregister(&gen2_ctl_dev);
f92363d1 3464}
Linux kernel - Deliverables
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