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mpt3sas: Move Gen3 HBA's device registration to a separate file
[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
81#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
82/**
83 * _ctl_sas_device_find_by_handle - sas device search
84 * @ioc: per adapter object
85 * @handle: sas device handle (assigned by firmware)
86 * Context: Calling function should acquire ioc->sas_device_lock
87 *
88 * This searches for sas_device based on sas_address, then return sas_device
89 * object.
90 */
91static struct _sas_device *
92_ctl_sas_device_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
93{
94 struct _sas_device *sas_device, *r;
95
96 r = NULL;
97 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
98 if (sas_device->handle != handle)
99 continue;
100 r = sas_device;
101 goto out;
102 }
103
104 out:
105 return r;
106}
107
108/**
109 * _ctl_display_some_debug - debug routine
110 * @ioc: per adapter object
111 * @smid: system request message index
112 * @calling_function_name: string pass from calling function
113 * @mpi_reply: reply message frame
114 * Context: none.
115 *
116 * Function for displaying debug info helpful when debugging issues
117 * in this module.
118 */
119static void
120_ctl_display_some_debug(struct MPT3SAS_ADAPTER *ioc, u16 smid,
121 char *calling_function_name, MPI2DefaultReply_t *mpi_reply)
122{
123 Mpi2ConfigRequest_t *mpi_request;
124 char *desc = NULL;
125
126 if (!(ioc->logging_level & MPT_DEBUG_IOCTL))
127 return;
128
129 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
130 switch (mpi_request->Function) {
131 case MPI2_FUNCTION_SCSI_IO_REQUEST:
132 {
133 Mpi2SCSIIORequest_t *scsi_request =
134 (Mpi2SCSIIORequest_t *)mpi_request;
135
136 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
137 "scsi_io, cmd(0x%02x), cdb_len(%d)",
138 scsi_request->CDB.CDB32[0],
139 le16_to_cpu(scsi_request->IoFlags) & 0xF);
140 desc = ioc->tmp_string;
141 break;
142 }
143 case MPI2_FUNCTION_SCSI_TASK_MGMT:
144 desc = "task_mgmt";
145 break;
146 case MPI2_FUNCTION_IOC_INIT:
147 desc = "ioc_init";
148 break;
149 case MPI2_FUNCTION_IOC_FACTS:
150 desc = "ioc_facts";
151 break;
152 case MPI2_FUNCTION_CONFIG:
153 {
154 Mpi2ConfigRequest_t *config_request =
155 (Mpi2ConfigRequest_t *)mpi_request;
156
157 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
158 "config, type(0x%02x), ext_type(0x%02x), number(%d)",
159 (config_request->Header.PageType &
160 MPI2_CONFIG_PAGETYPE_MASK), config_request->ExtPageType,
161 config_request->Header.PageNumber);
162 desc = ioc->tmp_string;
163 break;
164 }
165 case MPI2_FUNCTION_PORT_FACTS:
166 desc = "port_facts";
167 break;
168 case MPI2_FUNCTION_PORT_ENABLE:
169 desc = "port_enable";
170 break;
171 case MPI2_FUNCTION_EVENT_NOTIFICATION:
172 desc = "event_notification";
173 break;
174 case MPI2_FUNCTION_FW_DOWNLOAD:
175 desc = "fw_download";
176 break;
177 case MPI2_FUNCTION_FW_UPLOAD:
178 desc = "fw_upload";
179 break;
180 case MPI2_FUNCTION_RAID_ACTION:
181 desc = "raid_action";
182 break;
183 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
184 {
185 Mpi2SCSIIORequest_t *scsi_request =
186 (Mpi2SCSIIORequest_t *)mpi_request;
187
188 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
189 "raid_pass, cmd(0x%02x), cdb_len(%d)",
190 scsi_request->CDB.CDB32[0],
191 le16_to_cpu(scsi_request->IoFlags) & 0xF);
192 desc = ioc->tmp_string;
193 break;
194 }
195 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
196 desc = "sas_iounit_cntl";
197 break;
198 case MPI2_FUNCTION_SATA_PASSTHROUGH:
199 desc = "sata_pass";
200 break;
201 case MPI2_FUNCTION_DIAG_BUFFER_POST:
202 desc = "diag_buffer_post";
203 break;
204 case MPI2_FUNCTION_DIAG_RELEASE:
205 desc = "diag_release";
206 break;
207 case MPI2_FUNCTION_SMP_PASSTHROUGH:
208 desc = "smp_passthrough";
209 break;
210 }
211
212 if (!desc)
213 return;
214
215 pr_info(MPT3SAS_FMT "%s: %s, smid(%d)\n",
216 ioc->name, calling_function_name, desc, smid);
217
218 if (!mpi_reply)
219 return;
220
221 if (mpi_reply->IOCStatus || mpi_reply->IOCLogInfo)
222 pr_info(MPT3SAS_FMT
223 "\tiocstatus(0x%04x), loginfo(0x%08x)\n",
224 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
225 le32_to_cpu(mpi_reply->IOCLogInfo));
226
227 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
228 mpi_request->Function ==
229 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
230 Mpi2SCSIIOReply_t *scsi_reply =
231 (Mpi2SCSIIOReply_t *)mpi_reply;
232 struct _sas_device *sas_device = NULL;
233 unsigned long flags;
234
235 spin_lock_irqsave(&ioc->sas_device_lock, flags);
236 sas_device = _ctl_sas_device_find_by_handle(ioc,
237 le16_to_cpu(scsi_reply->DevHandle));
238 if (sas_device) {
239 pr_warn(MPT3SAS_FMT "\tsas_address(0x%016llx), phy(%d)\n",
240 ioc->name, (unsigned long long)
241 sas_device->sas_address, sas_device->phy);
242 pr_warn(MPT3SAS_FMT
243 "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
244 ioc->name, (unsigned long long)
245 sas_device->enclosure_logical_id, sas_device->slot);
246 }
247 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
248 if (scsi_reply->SCSIState || scsi_reply->SCSIStatus)
249 pr_info(MPT3SAS_FMT
250 "\tscsi_state(0x%02x), scsi_status"
251 "(0x%02x)\n", ioc->name,
252 scsi_reply->SCSIState,
253 scsi_reply->SCSIStatus);
254 }
255}
256
257#endif
258
259/**
260 * mpt3sas_ctl_done - ctl module completion routine
261 * @ioc: per adapter object
262 * @smid: system request message index
263 * @msix_index: MSIX table index supplied by the OS
264 * @reply: reply message frame(lower 32bit addr)
265 * Context: none.
266 *
267 * The callback handler when using ioc->ctl_cb_idx.
268 *
269 * Return 1 meaning mf should be freed from _base_interrupt
270 * 0 means the mf is freed from this function.
271 */
272u8
273mpt3sas_ctl_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
274 u32 reply)
275{
276 MPI2DefaultReply_t *mpi_reply;
277 Mpi2SCSIIOReply_t *scsiio_reply;
278 const void *sense_data;
279 u32 sz;
280
281 if (ioc->ctl_cmds.status == MPT3_CMD_NOT_USED)
282 return 1;
283 if (ioc->ctl_cmds.smid != smid)
284 return 1;
285 ioc->ctl_cmds.status |= MPT3_CMD_COMPLETE;
286 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
287 if (mpi_reply) {
288 memcpy(ioc->ctl_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
289 ioc->ctl_cmds.status |= MPT3_CMD_REPLY_VALID;
290 /* get sense data */
291 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
292 mpi_reply->Function ==
293 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
294 scsiio_reply = (Mpi2SCSIIOReply_t *)mpi_reply;
295 if (scsiio_reply->SCSIState &
296 MPI2_SCSI_STATE_AUTOSENSE_VALID) {
297 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
298 le32_to_cpu(scsiio_reply->SenseCount));
299 sense_data = mpt3sas_base_get_sense_buffer(ioc,
300 smid);
301 memcpy(ioc->ctl_cmds.sense, sense_data, sz);
302 }
303 }
304 }
305#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
306 _ctl_display_some_debug(ioc, smid, "ctl_done", mpi_reply);
307#endif
308 ioc->ctl_cmds.status &= ~MPT3_CMD_PENDING;
309 complete(&ioc->ctl_cmds.done);
310 return 1;
311}
312
313/**
314 * _ctl_check_event_type - determines when an event needs logging
315 * @ioc: per adapter object
316 * @event: firmware event
317 *
318 * The bitmask in ioc->event_type[] indicates which events should be
319 * be saved in the driver event_log. This bitmask is set by application.
320 *
321 * Returns 1 when event should be captured, or zero means no match.
322 */
323static int
324_ctl_check_event_type(struct MPT3SAS_ADAPTER *ioc, u16 event)
325{
326 u16 i;
327 u32 desired_event;
328
329 if (event >= 128 || !event || !ioc->event_log)
330 return 0;
331
332 desired_event = (1 << (event % 32));
333 if (!desired_event)
334 desired_event = 1;
335 i = event / 32;
336 return desired_event & ioc->event_type[i];
337}
338
339/**
340 * mpt3sas_ctl_add_to_event_log - add event
341 * @ioc: per adapter object
342 * @mpi_reply: reply message frame
343 *
344 * Return nothing.
345 */
346void
347mpt3sas_ctl_add_to_event_log(struct MPT3SAS_ADAPTER *ioc,
348 Mpi2EventNotificationReply_t *mpi_reply)
349{
350 struct MPT3_IOCTL_EVENTS *event_log;
351 u16 event;
352 int i;
353 u32 sz, event_data_sz;
354 u8 send_aen = 0;
355
356 if (!ioc->event_log)
357 return;
358
359 event = le16_to_cpu(mpi_reply->Event);
360
361 if (_ctl_check_event_type(ioc, event)) {
362
363 /* insert entry into circular event_log */
364 i = ioc->event_context % MPT3SAS_CTL_EVENT_LOG_SIZE;
365 event_log = ioc->event_log;
366 event_log[i].event = event;
367 event_log[i].context = ioc->event_context++;
368
369 event_data_sz = le16_to_cpu(mpi_reply->EventDataLength)*4;
370 sz = min_t(u32, event_data_sz, MPT3_EVENT_DATA_SIZE);
371 memset(event_log[i].data, 0, MPT3_EVENT_DATA_SIZE);
372 memcpy(event_log[i].data, mpi_reply->EventData, sz);
373 send_aen = 1;
374 }
375
376 /* This aen_event_read_flag flag is set until the
377 * application has read the event log.
378 * For MPI2_EVENT_LOG_ENTRY_ADDED, we always notify.
379 */
380 if (event == MPI2_EVENT_LOG_ENTRY_ADDED ||
381 (send_aen && !ioc->aen_event_read_flag)) {
382 ioc->aen_event_read_flag = 1;
383 wake_up_interruptible(&ctl_poll_wait);
384 if (async_queue)
385 kill_fasync(&async_queue, SIGIO, POLL_IN);
386 }
387}
388
389/**
390 * mpt3sas_ctl_event_callback - firmware event handler (called at ISR time)
391 * @ioc: per adapter object
392 * @msix_index: MSIX table index supplied by the OS
393 * @reply: reply message frame(lower 32bit addr)
394 * Context: interrupt.
395 *
396 * This function merely adds a new work task into ioc->firmware_event_thread.
397 * The tasks are worked from _firmware_event_work in user context.
398 *
399 * Return 1 meaning mf should be freed from _base_interrupt
400 * 0 means the mf is freed from this function.
401 */
402u8
403mpt3sas_ctl_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index,
404 u32 reply)
405{
406 Mpi2EventNotificationReply_t *mpi_reply;
407
408 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
409 mpt3sas_ctl_add_to_event_log(ioc, mpi_reply);
410 return 1;
411}
412
413/**
414 * _ctl_verify_adapter - validates ioc_number passed from application
415 * @ioc: per adapter object
416 * @iocpp: The ioc pointer is returned in this.
417 *
418 * Return (-1) means error, else ioc_number.
419 */
420static int
421_ctl_verify_adapter(int ioc_number, struct MPT3SAS_ADAPTER **iocpp)
422{
423 struct MPT3SAS_ADAPTER *ioc;
424
425 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
426 if (ioc->id != ioc_number)
427 continue;
428 *iocpp = ioc;
429 return ioc_number;
430 }
431 *iocpp = NULL;
432 return -1;
433}
434
435/**
436 * mpt3sas_ctl_reset_handler - reset callback handler (for ctl)
437 * @ioc: per adapter object
438 * @reset_phase: phase
439 *
440 * The handler for doing any required cleanup or initialization.
441 *
442 * The reset phase can be MPT3_IOC_PRE_RESET, MPT3_IOC_AFTER_RESET,
443 * MPT3_IOC_DONE_RESET
444 */
445void
446mpt3sas_ctl_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase)
447{
448 int i;
449 u8 issue_reset;
450
451 switch (reset_phase) {
452 case MPT3_IOC_PRE_RESET:
453 dtmprintk(ioc, pr_info(MPT3SAS_FMT
454 "%s: MPT3_IOC_PRE_RESET\n", ioc->name, __func__));
455 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
456 if (!(ioc->diag_buffer_status[i] &
457 MPT3_DIAG_BUFFER_IS_REGISTERED))
458 continue;
459 if ((ioc->diag_buffer_status[i] &
460 MPT3_DIAG_BUFFER_IS_RELEASED))
461 continue;
462 mpt3sas_send_diag_release(ioc, i, &issue_reset);
463 }
464 break;
465 case MPT3_IOC_AFTER_RESET:
466 dtmprintk(ioc, pr_info(MPT3SAS_FMT
467 "%s: MPT3_IOC_AFTER_RESET\n", ioc->name, __func__));
468 if (ioc->ctl_cmds.status & MPT3_CMD_PENDING) {
469 ioc->ctl_cmds.status |= MPT3_CMD_RESET;
470 mpt3sas_base_free_smid(ioc, ioc->ctl_cmds.smid);
471 complete(&ioc->ctl_cmds.done);
472 }
473 break;
474 case MPT3_IOC_DONE_RESET:
475 dtmprintk(ioc, pr_info(MPT3SAS_FMT
476 "%s: MPT3_IOC_DONE_RESET\n", ioc->name, __func__));
477
478 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
479 if (!(ioc->diag_buffer_status[i] &
480 MPT3_DIAG_BUFFER_IS_REGISTERED))
481 continue;
482 if ((ioc->diag_buffer_status[i] &
483 MPT3_DIAG_BUFFER_IS_RELEASED))
484 continue;
485 ioc->diag_buffer_status[i] |=
486 MPT3_DIAG_BUFFER_IS_DIAG_RESET;
487 }
488 break;
489 }
490}
491
492/**
8a7e4c24 493 * ctl_fasync -
f92363d1
SR		 494 * @fd -
495 * @filep -
496 * @mode -
497 *
498 * Called when application request fasyn callback handler.
499 */
8a7e4c24
SR		 500int
501ctl_fasync(int fd, struct file *filep, int mode)
f92363d1
SR		 502{
503 return fasync_helper(fd, filep, mode, &async_queue);
504}
505
f92363d1 506/**
8a7e4c24 507 * ctl_poll -
f92363d1
SR		 508 * @file -
509 * @wait -
510 *
511 */
8a7e4c24
SR		 512unsigned int
513ctl_poll(struct file *filep, poll_table *wait)
f92363d1
SR		 514{
515 struct MPT3SAS_ADAPTER *ioc;
516
517 poll_wait(filep, &ctl_poll_wait, wait);
518
519 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
520 if (ioc->aen_event_read_flag)
521 return POLLIN | POLLRDNORM;
522 }
523 return 0;
524}
525
526/**
527 * _ctl_set_task_mid - assign an active smid to tm request
528 * @ioc: per adapter object
529 * @karg - (struct mpt3_ioctl_command)
530 * @tm_request - pointer to mf from user space
531 *
532 * Returns 0 when an smid if found, else fail.
533 * during failure, the reply frame is filled.
534 */
535static int
536_ctl_set_task_mid(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command *karg,
537 Mpi2SCSITaskManagementRequest_t *tm_request)
538{
539 u8 found = 0;
540 u16 i;
541 u16 handle;
542 struct scsi_cmnd *scmd;
543 struct MPT3SAS_DEVICE *priv_data;
544 unsigned long flags;
545 Mpi2SCSITaskManagementReply_t *tm_reply;
546 u32 sz;
547 u32 lun;
548 char *desc = NULL;
549
550 if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
551 desc = "abort_task";
552 else if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK)
553 desc = "query_task";
554 else
555 return 0;
556
557 lun = scsilun_to_int((struct scsi_lun *)tm_request->LUN);
558
559 handle = le16_to_cpu(tm_request->DevHandle);
560 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
561 for (i = ioc->scsiio_depth; i && !found; i--) {
562 scmd = ioc->scsi_lookup[i - 1].scmd;
563 if (scmd == NULL || scmd->device == NULL ||
564 scmd->device->hostdata == NULL)
565 continue;
566 if (lun != scmd->device->lun)
567 continue;
568 priv_data = scmd->device->hostdata;
569 if (priv_data->sas_target == NULL)
570 continue;
571 if (priv_data->sas_target->handle != handle)
572 continue;
573 tm_request->TaskMID = cpu_to_le16(ioc->scsi_lookup[i - 1].smid);
574 found = 1;
575 }
576 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
577
578 if (!found) {
579 dctlprintk(ioc, pr_info(MPT3SAS_FMT
580 "%s: handle(0x%04x), lun(%d), no active mid!!\n",
581 ioc->name,
582 desc, le16_to_cpu(tm_request->DevHandle), lun));
583 tm_reply = ioc->ctl_cmds.reply;
584 tm_reply->DevHandle = tm_request->DevHandle;
585 tm_reply->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
586 tm_reply->TaskType = tm_request->TaskType;
587 tm_reply->MsgLength = sizeof(Mpi2SCSITaskManagementReply_t)/4;
588 tm_reply->VP_ID = tm_request->VP_ID;
589 tm_reply->VF_ID = tm_request->VF_ID;
590 sz = min_t(u32, karg->max_reply_bytes, ioc->reply_sz);
591 if (copy_to_user(karg->reply_frame_buf_ptr, ioc->ctl_cmds.reply,
592 sz))
593 pr_err("failure at %s:%d/%s()!\n", __FILE__,
594 __LINE__, __func__);
595 return 1;
596 }
597
598 dctlprintk(ioc, pr_info(MPT3SAS_FMT
599 "%s: handle(0x%04x), lun(%d), task_mid(%d)\n", ioc->name,
600 desc, le16_to_cpu(tm_request->DevHandle), lun,
601 le16_to_cpu(tm_request->TaskMID)));
602 return 0;
603}
604
605/**
606 * _ctl_do_mpt_command - main handler for MPT3COMMAND opcode
607 * @ioc: per adapter object
608 * @karg - (struct mpt3_ioctl_command)
609 * @mf - pointer to mf in user space
610 */
611static long
612_ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
613 void __user *mf)
614{
615 MPI2RequestHeader_t *mpi_request = NULL, *request;
616 MPI2DefaultReply_t *mpi_reply;
617 u32 ioc_state;
618 u16 ioc_status;
619 u16 smid;
620 unsigned long timeout, timeleft;
621 u8 issue_reset;
622 u32 sz;
623 void *psge;
624 void *data_out = NULL;
625 dma_addr_t data_out_dma = 0;
626 size_t data_out_sz = 0;
627 void *data_in = NULL;
628 dma_addr_t data_in_dma = 0;
629 size_t data_in_sz = 0;
630 long ret;
631 u16 wait_state_count;
632
633 issue_reset = 0;
634
635 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
636 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
637 ioc->name, __func__);
638 ret = -EAGAIN;
639 goto out;
640 }
641
642 wait_state_count = 0;
643 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
644 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
645 if (wait_state_count++ == 10) {
646 pr_err(MPT3SAS_FMT
647 "%s: failed due to ioc not operational\n",
648 ioc->name, __func__);
649 ret = -EFAULT;
650 goto out;
651 }
652 ssleep(1);
653 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
654 pr_info(MPT3SAS_FMT
655 "%s: waiting for operational state(count=%d)\n",
656 ioc->name,
657 __func__, wait_state_count);
658 }
659 if (wait_state_count)
660 pr_info(MPT3SAS_FMT "%s: ioc is operational\n",
661 ioc->name, __func__);
662
663 mpi_request = kzalloc(ioc->request_sz, GFP_KERNEL);
664 if (!mpi_request) {
665 pr_err(MPT3SAS_FMT
666 "%s: failed obtaining a memory for mpi_request\n",
667 ioc->name, __func__);
668 ret = -ENOMEM;
669 goto out;
670 }
671
672 /* Check for overflow and wraparound */
673 if (karg.data_sge_offset * 4 > ioc->request_sz ||
674 karg.data_sge_offset > (UINT_MAX / 4)) {
675 ret = -EINVAL;
676 goto out;
677 }
678
679 /* copy in request message frame from user */
680 if (copy_from_user(mpi_request, mf, karg.data_sge_offset*4)) {
681 pr_err("failure at %s:%d/%s()!\n", __FILE__, __LINE__,
682 __func__);
683 ret = -EFAULT;
684 goto out;
685 }
686
687 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
688 smid = mpt3sas_base_get_smid_hpr(ioc, ioc->ctl_cb_idx);
689 if (!smid) {
690 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
691 ioc->name, __func__);
692 ret = -EAGAIN;
693 goto out;
694 }
695 } else {
696
697 smid = mpt3sas_base_get_smid_scsiio(ioc, ioc->ctl_cb_idx, NULL);
698 if (!smid) {
699 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
700 ioc->name, __func__);
701 ret = -EAGAIN;
702 goto out;
703 }
704 }
705
706 ret = 0;
707 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
708 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
709 request = mpt3sas_base_get_msg_frame(ioc, smid);
710 memcpy(request, mpi_request, karg.data_sge_offset*4);
711 ioc->ctl_cmds.smid = smid;
712 data_out_sz = karg.data_out_size;
713 data_in_sz = karg.data_in_size;
714
715 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
716 mpi_request->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
717 if (!le16_to_cpu(mpi_request->FunctionDependent1) ||
718 le16_to_cpu(mpi_request->FunctionDependent1) >
719 ioc->facts.MaxDevHandle) {
720 ret = -EINVAL;
721 mpt3sas_base_free_smid(ioc, smid);
722 goto out;
723 }
724 }
725
726 /* obtain dma-able memory for data transfer */
727 if (data_out_sz) /* WRITE */ {
728 data_out = pci_alloc_consistent(ioc->pdev, data_out_sz,
729 &data_out_dma);
730 if (!data_out) {
731 pr_err("failure at %s:%d/%s()!\n", __FILE__,
732 __LINE__, __func__);
733 ret = -ENOMEM;
734 mpt3sas_base_free_smid(ioc, smid);
735 goto out;
736 }
737 if (copy_from_user(data_out, karg.data_out_buf_ptr,
738 data_out_sz)) {
739 pr_err("failure at %s:%d/%s()!\n", __FILE__,
740 __LINE__, __func__);
741 ret = -EFAULT;
742 mpt3sas_base_free_smid(ioc, smid);
743 goto out;
744 }
745 }
746
747 if (data_in_sz) /* READ */ {
748 data_in = pci_alloc_consistent(ioc->pdev, data_in_sz,
749 &data_in_dma);
750 if (!data_in) {
751 pr_err("failure at %s:%d/%s()!\n", __FILE__,
752 __LINE__, __func__);
753 ret = -ENOMEM;
754 mpt3sas_base_free_smid(ioc, smid);
755 goto out;
756 }
757 }
758
759 psge = (void *)request + (karg.data_sge_offset*4);
760
761 /* send command to firmware */
762#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
763 _ctl_display_some_debug(ioc, smid, "ctl_request", NULL);
764#endif
765
766 init_completion(&ioc->ctl_cmds.done);
767 switch (mpi_request->Function) {
768 case MPI2_FUNCTION_SCSI_IO_REQUEST:
769 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
770 {
771 Mpi2SCSIIORequest_t *scsiio_request =
772 (Mpi2SCSIIORequest_t *)request;
773 scsiio_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
774 scsiio_request->SenseBufferLowAddress =
775 mpt3sas_base_get_sense_buffer_dma(ioc, smid);
776 memset(ioc->ctl_cmds.sense, 0, SCSI_SENSE_BUFFERSIZE);
777 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
778 data_in_dma, data_in_sz);
779
780 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)
781 mpt3sas_base_put_smid_scsi_io(ioc, smid,
782 le16_to_cpu(mpi_request->FunctionDependent1));
783 else
784 mpt3sas_base_put_smid_default(ioc, smid);
785 break;
786 }
787 case MPI2_FUNCTION_SCSI_TASK_MGMT:
788 {
789 Mpi2SCSITaskManagementRequest_t *tm_request =
790 (Mpi2SCSITaskManagementRequest_t *)request;
791
792 dtmprintk(ioc, pr_info(MPT3SAS_FMT
793 "TASK_MGMT: handle(0x%04x), task_type(0x%02x)\n",
794 ioc->name,
795 le16_to_cpu(tm_request->DevHandle), tm_request->TaskType));
796
797 if (tm_request->TaskType ==
798 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK ||
799 tm_request->TaskType ==
800 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) {
801 if (_ctl_set_task_mid(ioc, &karg, tm_request)) {
802 mpt3sas_base_free_smid(ioc, smid);
803 goto out;
804 }
805 }
806
807 mpt3sas_scsih_set_tm_flag(ioc, le16_to_cpu(
808 tm_request->DevHandle));
809 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
810 data_in_dma, data_in_sz);
811 mpt3sas_base_put_smid_hi_priority(ioc, smid);
812 break;
813 }
814 case MPI2_FUNCTION_SMP_PASSTHROUGH:
815 {
816 Mpi2SmpPassthroughRequest_t *smp_request =
817 (Mpi2SmpPassthroughRequest_t *)mpi_request;
818 u8 *data;
819
820 /* ioc determines which port to use */
821 smp_request->PhysicalPort = 0xFF;
822 if (smp_request->PassthroughFlags &
823 MPI2_SMP_PT_REQ_PT_FLAGS_IMMEDIATE)
824 data = (u8 *)&smp_request->SGL;
825 else {
826 if (unlikely(data_out == NULL)) {
827 pr_err("failure at %s:%d/%s()!\n",
828 __FILE__, __LINE__, __func__);
829 mpt3sas_base_free_smid(ioc, smid);
830 ret = -EINVAL;
831 goto out;
832 }
833 data = data_out;
834 }
835
836 if (data[1] == 0x91 && (data[10] == 1 || data[10] == 2)) {
837 ioc->ioc_link_reset_in_progress = 1;
838 ioc->ignore_loginfos = 1;
839 }
840 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
841 data_in_sz);
842 mpt3sas_base_put_smid_default(ioc, smid);
843 break;
844 }
845 case MPI2_FUNCTION_SATA_PASSTHROUGH:
846 case MPI2_FUNCTION_FW_DOWNLOAD:
847 case MPI2_FUNCTION_FW_UPLOAD:
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_TOOLBOX:
855 {
856 Mpi2ToolboxCleanRequest_t *toolbox_request =
857 (Mpi2ToolboxCleanRequest_t *)mpi_request;
858
859 if (toolbox_request->Tool == MPI2_TOOLBOX_DIAGNOSTIC_CLI_TOOL) {
860 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
861 data_in_dma, data_in_sz);
862 } else {
863 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
864 data_in_dma, data_in_sz);
865 }
866 mpt3sas_base_put_smid_default(ioc, smid);
867 break;
868 }
869 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
870 {
871 Mpi2SasIoUnitControlRequest_t *sasiounit_request =
872 (Mpi2SasIoUnitControlRequest_t *)mpi_request;
873
874 if (sasiounit_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET
875 || sasiounit_request->Operation ==
876 MPI2_SAS_OP_PHY_LINK_RESET) {
877 ioc->ioc_link_reset_in_progress = 1;
878 ioc->ignore_loginfos = 1;
879 }
880 /* drop to default case for posting the request */
881 }
882 default:
883 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
884 data_in_dma, data_in_sz);
885 mpt3sas_base_put_smid_default(ioc, smid);
886 break;
887 }
888
889 if (karg.timeout < MPT3_IOCTL_DEFAULT_TIMEOUT)
890 timeout = MPT3_IOCTL_DEFAULT_TIMEOUT;
891 else
892 timeout = karg.timeout;
893 timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
894 timeout*HZ);
895 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
896 Mpi2SCSITaskManagementRequest_t *tm_request =
897 (Mpi2SCSITaskManagementRequest_t *)mpi_request;
898 mpt3sas_scsih_clear_tm_flag(ioc, le16_to_cpu(
899 tm_request->DevHandle));
900 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
901 } else if ((mpi_request->Function == MPI2_FUNCTION_SMP_PASSTHROUGH ||
902 mpi_request->Function == MPI2_FUNCTION_SAS_IO_UNIT_CONTROL) &&
903 ioc->ioc_link_reset_in_progress) {
904 ioc->ioc_link_reset_in_progress = 0;
905 ioc->ignore_loginfos = 0;
906 }
907 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
908 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
909 __func__);
910 _debug_dump_mf(mpi_request, karg.data_sge_offset);
911 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
912 issue_reset = 1;
913 goto issue_host_reset;
914 }
915
916 mpi_reply = ioc->ctl_cmds.reply;
917 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
918
919#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
920 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_TASK_MGMT &&
921 (ioc->logging_level & MPT_DEBUG_TM)) {
922 Mpi2SCSITaskManagementReply_t *tm_reply =
923 (Mpi2SCSITaskManagementReply_t *)mpi_reply;
924
925 pr_info(MPT3SAS_FMT "TASK_MGMT: " \
926 "IOCStatus(0x%04x), IOCLogInfo(0x%08x), "
927 "TerminationCount(0x%08x)\n", ioc->name,
928 le16_to_cpu(tm_reply->IOCStatus),
929 le32_to_cpu(tm_reply->IOCLogInfo),
930 le32_to_cpu(tm_reply->TerminationCount));
931 }
932#endif
933 /* copy out xdata to user */
934 if (data_in_sz) {
935 if (copy_to_user(karg.data_in_buf_ptr, data_in,
936 data_in_sz)) {
937 pr_err("failure at %s:%d/%s()!\n", __FILE__,
938 __LINE__, __func__);
939 ret = -ENODATA;
940 goto out;
941 }
942 }
943
944 /* copy out reply message frame to user */
945 if (karg.max_reply_bytes) {
946 sz = min_t(u32, karg.max_reply_bytes, ioc->reply_sz);
947 if (copy_to_user(karg.reply_frame_buf_ptr, ioc->ctl_cmds.reply,
948 sz)) {
949 pr_err("failure at %s:%d/%s()!\n", __FILE__,
950 __LINE__, __func__);
951 ret = -ENODATA;
952 goto out;
953 }
954 }
955
956 /* copy out sense to user */
957 if (karg.max_sense_bytes && (mpi_request->Function ==
958 MPI2_FUNCTION_SCSI_IO_REQUEST || mpi_request->Function ==
959 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) {
960 sz = min_t(u32, karg.max_sense_bytes, SCSI_SENSE_BUFFERSIZE);
961 if (copy_to_user(karg.sense_data_ptr, ioc->ctl_cmds.sense,
962 sz)) {
963 pr_err("failure at %s:%d/%s()!\n", __FILE__,
964 __LINE__, __func__);
965 ret = -ENODATA;
966 goto out;
967 }
968 }
969
970 issue_host_reset:
971 if (issue_reset) {
972 ret = -ENODATA;
973 if ((mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
974 mpi_request->Function ==
975 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
976 mpi_request->Function == MPI2_FUNCTION_SATA_PASSTHROUGH)) {
977 pr_info(MPT3SAS_FMT "issue target reset: handle = (0x%04x)\n",
978 ioc->name,
979 le16_to_cpu(mpi_request->FunctionDependent1));
980 mpt3sas_halt_firmware(ioc);
981 mpt3sas_scsih_issue_tm(ioc,
982 le16_to_cpu(mpi_request->FunctionDependent1), 0, 0,
983 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 30,
c62e46de 984 TM_MUTEX_ON);
f92363d1
SR		 985 } else
986 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
987 FORCE_BIG_HAMMER);
988 }
989
990 out:
991
992 /* free memory associated with sg buffers */
993 if (data_in)
994 pci_free_consistent(ioc->pdev, data_in_sz, data_in,
995 data_in_dma);
996
997 if (data_out)
998 pci_free_consistent(ioc->pdev, data_out_sz, data_out,
999 data_out_dma);
1000
1001 kfree(mpi_request);
1002 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1003 return ret;
1004}
1005
1006/**
1007 * _ctl_getiocinfo - main handler for MPT3IOCINFO opcode
1008 * @ioc: per adapter object
1009 * @arg - user space buffer containing ioctl content
1010 */
1011static long
1012_ctl_getiocinfo(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1013{
1014 struct mpt3_ioctl_iocinfo karg;
1015
1016 if (copy_from_user(&karg, arg, sizeof(karg))) {
1017 pr_err("failure at %s:%d/%s()!\n",
1018 __FILE__, __LINE__, __func__);
1019 return -EFAULT;
1020 }
1021
1022 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1023 __func__));
1024
1025 memset(&karg, 0 , sizeof(karg));
1026 karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS3;
1027 if (ioc->pfacts)
1028 karg.port_number = ioc->pfacts[0].PortNumber;
1029 karg.hw_rev = ioc->pdev->revision;
1030 karg.pci_id = ioc->pdev->device;
1031 karg.subsystem_device = ioc->pdev->subsystem_device;
1032 karg.subsystem_vendor = ioc->pdev->subsystem_vendor;
1033 karg.pci_information.u.bits.bus = ioc->pdev->bus->number;
1034 karg.pci_information.u.bits.device = PCI_SLOT(ioc->pdev->devfn);
1035 karg.pci_information.u.bits.function = PCI_FUNC(ioc->pdev->devfn);
1036 karg.pci_information.segment_id = pci_domain_nr(ioc->pdev->bus);
1037 karg.firmware_version = ioc->facts.FWVersion.Word;
1038 strcpy(karg.driver_version, MPT3SAS_DRIVER_NAME);
1039 strcat(karg.driver_version, "-");
1040 strcat(karg.driver_version, MPT3SAS_DRIVER_VERSION);
1041 karg.bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
1042
1043 if (copy_to_user(arg, &karg, sizeof(karg))) {
1044 pr_err("failure at %s:%d/%s()!\n",
1045 __FILE__, __LINE__, __func__);
1046 return -EFAULT;
1047 }
1048 return 0;
1049}
1050
1051/**
1052 * _ctl_eventquery - main handler for MPT3EVENTQUERY opcode
1053 * @ioc: per adapter object
1054 * @arg - user space buffer containing ioctl content
1055 */
1056static long
1057_ctl_eventquery(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1058{
1059 struct mpt3_ioctl_eventquery karg;
1060
1061 if (copy_from_user(&karg, arg, sizeof(karg))) {
1062 pr_err("failure at %s:%d/%s()!\n",
1063 __FILE__, __LINE__, __func__);
1064 return -EFAULT;
1065 }
1066
1067 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1068 __func__));
1069
1070 karg.event_entries = MPT3SAS_CTL_EVENT_LOG_SIZE;
1071 memcpy(karg.event_types, ioc->event_type,
1072 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1073
1074 if (copy_to_user(arg, &karg, sizeof(karg))) {
1075 pr_err("failure at %s:%d/%s()!\n",
1076 __FILE__, __LINE__, __func__);
1077 return -EFAULT;
1078 }
1079 return 0;
1080}
1081
1082/**
1083 * _ctl_eventenable - main handler for MPT3EVENTENABLE opcode
1084 * @ioc: per adapter object
1085 * @arg - user space buffer containing ioctl content
1086 */
1087static long
1088_ctl_eventenable(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1089{
1090 struct mpt3_ioctl_eventenable karg;
1091
1092 if (copy_from_user(&karg, arg, sizeof(karg))) {
1093 pr_err("failure at %s:%d/%s()!\n",
1094 __FILE__, __LINE__, __func__);
1095 return -EFAULT;
1096 }
1097
1098 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1099 __func__));
1100
1101 memcpy(ioc->event_type, karg.event_types,
1102 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1103 mpt3sas_base_validate_event_type(ioc, ioc->event_type);
1104
1105 if (ioc->event_log)
1106 return 0;
1107 /* initialize event_log */
1108 ioc->event_context = 0;
1109 ioc->aen_event_read_flag = 0;
1110 ioc->event_log = kcalloc(MPT3SAS_CTL_EVENT_LOG_SIZE,
1111 sizeof(struct MPT3_IOCTL_EVENTS), GFP_KERNEL);
1112 if (!ioc->event_log) {
1113 pr_err("failure at %s:%d/%s()!\n",
1114 __FILE__, __LINE__, __func__);
1115 return -ENOMEM;
1116 }
1117 return 0;
1118}
1119
1120/**
1121 * _ctl_eventreport - main handler for MPT3EVENTREPORT opcode
1122 * @ioc: per adapter object
1123 * @arg - user space buffer containing ioctl content
1124 */
1125static long
1126_ctl_eventreport(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1127{
1128 struct mpt3_ioctl_eventreport karg;
1129 u32 number_bytes, max_events, max;
1130 struct mpt3_ioctl_eventreport __user *uarg = arg;
1131
1132 if (copy_from_user(&karg, arg, sizeof(karg))) {
1133 pr_err("failure at %s:%d/%s()!\n",
1134 __FILE__, __LINE__, __func__);
1135 return -EFAULT;
1136 }
1137
1138 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1139 __func__));
1140
1141 number_bytes = karg.hdr.max_data_size -
1142 sizeof(struct mpt3_ioctl_header);
1143 max_events = number_bytes/sizeof(struct MPT3_IOCTL_EVENTS);
1144 max = min_t(u32, MPT3SAS_CTL_EVENT_LOG_SIZE, max_events);
1145
1146 /* If fewer than 1 event is requested, there must have
1147 * been some type of error.
1148 */
1149 if (!max || !ioc->event_log)
1150 return -ENODATA;
1151
1152 number_bytes = max * sizeof(struct MPT3_IOCTL_EVENTS);
1153 if (copy_to_user(uarg->event_data, ioc->event_log, number_bytes)) {
1154 pr_err("failure at %s:%d/%s()!\n",
1155 __FILE__, __LINE__, __func__);
1156 return -EFAULT;
1157 }
1158
1159 /* reset flag so SIGIO can restart */
1160 ioc->aen_event_read_flag = 0;
1161 return 0;
1162}
1163
1164/**
1165 * _ctl_do_reset - main handler for MPT3HARDRESET opcode
1166 * @ioc: per adapter object
1167 * @arg - user space buffer containing ioctl content
1168 */
1169static long
1170_ctl_do_reset(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1171{
1172 struct mpt3_ioctl_diag_reset karg;
1173 int retval;
1174
1175 if (copy_from_user(&karg, arg, sizeof(karg))) {
1176 pr_err("failure at %s:%d/%s()!\n",
1177 __FILE__, __LINE__, __func__);
1178 return -EFAULT;
1179 }
1180
1181 if (ioc->shost_recovery || ioc->pci_error_recovery ||
1182 ioc->is_driver_loading)
1183 return -EAGAIN;
1184
1185 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1186 __func__));
1187
1188 retval = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1189 FORCE_BIG_HAMMER);
1190 pr_info(MPT3SAS_FMT "host reset: %s\n",
1191 ioc->name, ((!retval) ? "SUCCESS" : "FAILED"));
1192 return 0;
1193}
1194
1195/**
1196 * _ctl_btdh_search_sas_device - searching for sas device
1197 * @ioc: per adapter object
1198 * @btdh: btdh ioctl payload
1199 */
1200static int
1201_ctl_btdh_search_sas_device(struct MPT3SAS_ADAPTER *ioc,
1202 struct mpt3_ioctl_btdh_mapping *btdh)
1203{
1204 struct _sas_device *sas_device;
1205 unsigned long flags;
1206 int rc = 0;
1207
1208 if (list_empty(&ioc->sas_device_list))
1209 return rc;
1210
1211 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1212 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
1213 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1214 btdh->handle == sas_device->handle) {
1215 btdh->bus = sas_device->channel;
1216 btdh->id = sas_device->id;
1217 rc = 1;
1218 goto out;
1219 } else if (btdh->bus == sas_device->channel && btdh->id ==
1220 sas_device->id && btdh->handle == 0xFFFF) {
1221 btdh->handle = sas_device->handle;
1222 rc = 1;
1223 goto out;
1224 }
1225 }
1226 out:
1227 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1228 return rc;
1229}
1230
1231/**
1232 * _ctl_btdh_search_raid_device - searching for raid device
1233 * @ioc: per adapter object
1234 * @btdh: btdh ioctl payload
1235 */
1236static int
1237_ctl_btdh_search_raid_device(struct MPT3SAS_ADAPTER *ioc,
1238 struct mpt3_ioctl_btdh_mapping *btdh)
1239{
1240 struct _raid_device *raid_device;
1241 unsigned long flags;
1242 int rc = 0;
1243
1244 if (list_empty(&ioc->raid_device_list))
1245 return rc;
1246
1247 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1248 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
1249 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1250 btdh->handle == raid_device->handle) {
1251 btdh->bus = raid_device->channel;
1252 btdh->id = raid_device->id;
1253 rc = 1;
1254 goto out;
1255 } else if (btdh->bus == raid_device->channel && btdh->id ==
1256 raid_device->id && btdh->handle == 0xFFFF) {
1257 btdh->handle = raid_device->handle;
1258 rc = 1;
1259 goto out;
1260 }
1261 }
1262 out:
1263 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1264 return rc;
1265}
1266
1267/**
1268 * _ctl_btdh_mapping - main handler for MPT3BTDHMAPPING opcode
1269 * @ioc: per adapter object
1270 * @arg - user space buffer containing ioctl content
1271 */
1272static long
1273_ctl_btdh_mapping(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1274{
1275 struct mpt3_ioctl_btdh_mapping karg;
1276 int rc;
1277
1278 if (copy_from_user(&karg, arg, sizeof(karg))) {
1279 pr_err("failure at %s:%d/%s()!\n",
1280 __FILE__, __LINE__, __func__);
1281 return -EFAULT;
1282 }
1283
1284 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1285 __func__));
1286
1287 rc = _ctl_btdh_search_sas_device(ioc, &karg);
1288 if (!rc)
1289 _ctl_btdh_search_raid_device(ioc, &karg);
1290
1291 if (copy_to_user(arg, &karg, sizeof(karg))) {
1292 pr_err("failure at %s:%d/%s()!\n",
1293 __FILE__, __LINE__, __func__);
1294 return -EFAULT;
1295 }
1296 return 0;
1297}
1298
1299/**
1300 * _ctl_diag_capability - return diag buffer capability
1301 * @ioc: per adapter object
1302 * @buffer_type: specifies either TRACE, SNAPSHOT, or EXTENDED
1303 *
1304 * returns 1 when diag buffer support is enabled in firmware
1305 */
1306static u8
1307_ctl_diag_capability(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type)
1308{
1309 u8 rc = 0;
1310
1311 switch (buffer_type) {
1312 case MPI2_DIAG_BUF_TYPE_TRACE:
1313 if (ioc->facts.IOCCapabilities &
1314 MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER)
1315 rc = 1;
1316 break;
1317 case MPI2_DIAG_BUF_TYPE_SNAPSHOT:
1318 if (ioc->facts.IOCCapabilities &
1319 MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER)
1320 rc = 1;
1321 break;
1322 case MPI2_DIAG_BUF_TYPE_EXTENDED:
1323 if (ioc->facts.IOCCapabilities &
1324 MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER)
1325 rc = 1;
1326 }
1327
1328 return rc;
1329}
1330
1331
1332/**
1333 * _ctl_diag_register_2 - wrapper for registering diag buffer support
1334 * @ioc: per adapter object
1335 * @diag_register: the diag_register struct passed in from user space
1336 *
1337 */
1338static long
1339_ctl_diag_register_2(struct MPT3SAS_ADAPTER *ioc,
1340 struct mpt3_diag_register *diag_register)
1341{
1342 int rc, i;
1343 void *request_data = NULL;
1344 dma_addr_t request_data_dma;
1345 u32 request_data_sz = 0;
1346 Mpi2DiagBufferPostRequest_t *mpi_request;
1347 Mpi2DiagBufferPostReply_t *mpi_reply;
1348 u8 buffer_type;
1349 unsigned long timeleft;
1350 u16 smid;
1351 u16 ioc_status;
1352 u32 ioc_state;
1353 u8 issue_reset = 0;
1354
1355 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1356 __func__));
1357
1358 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1359 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1360 pr_err(MPT3SAS_FMT
1361 "%s: failed due to ioc not operational\n",
1362 ioc->name, __func__);
1363 rc = -EAGAIN;
1364 goto out;
1365 }
1366
1367 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
1368 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
1369 ioc->name, __func__);
1370 rc = -EAGAIN;
1371 goto out;
1372 }
1373
1374 buffer_type = diag_register->buffer_type;
1375 if (!_ctl_diag_capability(ioc, buffer_type)) {
1376 pr_err(MPT3SAS_FMT
1377 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1378 ioc->name, __func__, buffer_type);
1379 return -EPERM;
1380 }
1381
1382 if (ioc->diag_buffer_status[buffer_type] &
1383 MPT3_DIAG_BUFFER_IS_REGISTERED) {
1384 pr_err(MPT3SAS_FMT
1385 "%s: already has a registered buffer for buffer_type(0x%02x)\n",
1386 ioc->name, __func__,
1387 buffer_type);
1388 return -EINVAL;
1389 }
1390
1391 if (diag_register->requested_buffer_size % 4) {
1392 pr_err(MPT3SAS_FMT
1393 "%s: the requested_buffer_size is not 4 byte aligned\n",
1394 ioc->name, __func__);
1395 return -EINVAL;
1396 }
1397
1398 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1399 if (!smid) {
1400 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
1401 ioc->name, __func__);
1402 rc = -EAGAIN;
1403 goto out;
1404 }
1405
1406 rc = 0;
1407 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
1408 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1409 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1410 ioc->ctl_cmds.smid = smid;
1411
1412 request_data = ioc->diag_buffer[buffer_type];
1413 request_data_sz = diag_register->requested_buffer_size;
1414 ioc->unique_id[buffer_type] = diag_register->unique_id;
1415 ioc->diag_buffer_status[buffer_type] = 0;
1416 memcpy(ioc->product_specific[buffer_type],
1417 diag_register->product_specific, MPT3_PRODUCT_SPECIFIC_DWORDS);
1418 ioc->diagnostic_flags[buffer_type] = diag_register->diagnostic_flags;
1419
1420 if (request_data) {
1421 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1422 if (request_data_sz != ioc->diag_buffer_sz[buffer_type]) {
1423 pci_free_consistent(ioc->pdev,
1424 ioc->diag_buffer_sz[buffer_type],
1425 request_data, request_data_dma);
1426 request_data = NULL;
1427 }
1428 }
1429
1430 if (request_data == NULL) {
1431 ioc->diag_buffer_sz[buffer_type] = 0;
1432 ioc->diag_buffer_dma[buffer_type] = 0;
1433 request_data = pci_alloc_consistent(
1434 ioc->pdev, request_data_sz, &request_data_dma);
1435 if (request_data == NULL) {
1436 pr_err(MPT3SAS_FMT "%s: failed allocating memory" \
1437 " for diag buffers, requested size(%d)\n",
1438 ioc->name, __func__, request_data_sz);
1439 mpt3sas_base_free_smid(ioc, smid);
1440 return -ENOMEM;
1441 }
1442 ioc->diag_buffer[buffer_type] = request_data;
1443 ioc->diag_buffer_sz[buffer_type] = request_data_sz;
1444 ioc->diag_buffer_dma[buffer_type] = request_data_dma;
1445 }
1446
1447 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
1448 mpi_request->BufferType = diag_register->buffer_type;
1449 mpi_request->Flags = cpu_to_le32(diag_register->diagnostic_flags);
1450 mpi_request->BufferAddress = cpu_to_le64(request_data_dma);
1451 mpi_request->BufferLength = cpu_to_le32(request_data_sz);
1452 mpi_request->VF_ID = 0; /* TODO */
1453 mpi_request->VP_ID = 0;
1454
1455 dctlprintk(ioc, pr_info(MPT3SAS_FMT
1456 "%s: diag_buffer(0x%p), dma(0x%llx), sz(%d)\n",
1457 ioc->name, __func__, request_data,
1458 (unsigned long long)request_data_dma,
1459 le32_to_cpu(mpi_request->BufferLength)));
1460
1461 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
1462 mpi_request->ProductSpecific[i] =
1463 cpu_to_le32(ioc->product_specific[buffer_type][i]);
1464
1465 init_completion(&ioc->ctl_cmds.done);
1466 mpt3sas_base_put_smid_default(ioc, smid);
1467 timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
1468 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
1469
1470 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1471 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
1472 __func__);
1473 _debug_dump_mf(mpi_request,
1474 sizeof(Mpi2DiagBufferPostRequest_t)/4);
1475 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
1476 issue_reset = 1;
1477 goto issue_host_reset;
1478 }
1479
1480 /* process the completed Reply Message Frame */
1481 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
1482 pr_err(MPT3SAS_FMT "%s: no reply message\n",
1483 ioc->name, __func__);
1484 rc = -EFAULT;
1485 goto out;
1486 }
1487
1488 mpi_reply = ioc->ctl_cmds.reply;
1489 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1490
1491 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1492 ioc->diag_buffer_status[buffer_type] |=
1493 MPT3_DIAG_BUFFER_IS_REGISTERED;
1494 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
1495 ioc->name, __func__));
1496 } else {
1497 pr_info(MPT3SAS_FMT
1498 "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
1499 ioc->name, __func__,
1500 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
1501 rc = -EFAULT;
1502 }
1503
1504 issue_host_reset:
1505 if (issue_reset)
1506 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1507 FORCE_BIG_HAMMER);
1508
1509 out:
1510
1511 if (rc && request_data)
1512 pci_free_consistent(ioc->pdev, request_data_sz,
1513 request_data, request_data_dma);
1514
1515 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1516 return rc;
1517}
1518
1519/**
1520 * mpt3sas_enable_diag_buffer - enabling diag_buffers support driver load time
1521 * @ioc: per adapter object
1522 * @bits_to_register: bitwise field where trace is bit 0, and snapshot is bit 1
1523 *
1524 * This is called when command line option diag_buffer_enable is enabled
1525 * at driver load time.
1526 */
1527void
1528mpt3sas_enable_diag_buffer(struct MPT3SAS_ADAPTER *ioc, u8 bits_to_register)
1529{
1530 struct mpt3_diag_register diag_register;
1531
1532 memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
1533
1534 if (bits_to_register & 1) {
1535 pr_info(MPT3SAS_FMT "registering trace buffer support\n",
1536 ioc->name);
1537 ioc->diag_trigger_master.MasterData =
1538 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
1539 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
1540 /* register for 2MB buffers */
1541 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1542 diag_register.unique_id = 0x7075900;
1543 _ctl_diag_register_2(ioc, &diag_register);
1544 }
1545
1546 if (bits_to_register & 2) {
1547 pr_info(MPT3SAS_FMT "registering snapshot buffer support\n",
1548 ioc->name);
1549 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_SNAPSHOT;
1550 /* register for 2MB buffers */
1551 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1552 diag_register.unique_id = 0x7075901;
1553 _ctl_diag_register_2(ioc, &diag_register);
1554 }
1555
1556 if (bits_to_register & 4) {
1557 pr_info(MPT3SAS_FMT "registering extended buffer support\n",
1558 ioc->name);
1559 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_EXTENDED;
1560 /* register for 2MB buffers */
1561 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1562 diag_register.unique_id = 0x7075901;
1563 _ctl_diag_register_2(ioc, &diag_register);
1564 }
1565}
1566
1567/**
1568 * _ctl_diag_register - application register with driver
1569 * @ioc: per adapter object
1570 * @arg - user space buffer containing ioctl content
1571 *
1572 * This will allow the driver to setup any required buffers that will be
1573 * needed by firmware to communicate with the driver.
1574 */
1575static long
1576_ctl_diag_register(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1577{
1578 struct mpt3_diag_register karg;
1579 long rc;
1580
1581 if (copy_from_user(&karg, arg, sizeof(karg))) {
1582 pr_err("failure at %s:%d/%s()!\n",
1583 __FILE__, __LINE__, __func__);
1584 return -EFAULT;
1585 }
1586
1587 rc = _ctl_diag_register_2(ioc, &karg);
1588 return rc;
1589}
1590
1591/**
1592 * _ctl_diag_unregister - application unregister with driver
1593 * @ioc: per adapter object
1594 * @arg - user space buffer containing ioctl content
1595 *
1596 * This will allow the driver to cleanup any memory allocated for diag
1597 * messages and to free up any resources.
1598 */
1599static long
1600_ctl_diag_unregister(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1601{
1602 struct mpt3_diag_unregister karg;
1603 void *request_data;
1604 dma_addr_t request_data_dma;
1605 u32 request_data_sz;
1606 u8 buffer_type;
1607
1608 if (copy_from_user(&karg, arg, sizeof(karg))) {
1609 pr_err("failure at %s:%d/%s()!\n",
1610 __FILE__, __LINE__, __func__);
1611 return -EFAULT;
1612 }
1613
1614 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1615 __func__));
1616
1617 buffer_type = karg.unique_id & 0x000000ff;
1618 if (!_ctl_diag_capability(ioc, buffer_type)) {
1619 pr_err(MPT3SAS_FMT
1620 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1621 ioc->name, __func__, buffer_type);
1622 return -EPERM;
1623 }
1624
1625 if ((ioc->diag_buffer_status[buffer_type] &
1626 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1627 pr_err(MPT3SAS_FMT
1628 "%s: buffer_type(0x%02x) is not registered\n",
1629 ioc->name, __func__, buffer_type);
1630 return -EINVAL;
1631 }
1632 if ((ioc->diag_buffer_status[buffer_type] &
1633 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
1634 pr_err(MPT3SAS_FMT
1635 "%s: buffer_type(0x%02x) has not been released\n",
1636 ioc->name, __func__, buffer_type);
1637 return -EINVAL;
1638 }
1639
1640 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1641 pr_err(MPT3SAS_FMT
1642 "%s: unique_id(0x%08x) is not registered\n",
1643 ioc->name, __func__, karg.unique_id);
1644 return -EINVAL;
1645 }
1646
1647 request_data = ioc->diag_buffer[buffer_type];
1648 if (!request_data) {
1649 pr_err(MPT3SAS_FMT
1650 "%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
1651 ioc->name, __func__, buffer_type);
1652 return -ENOMEM;
1653 }
1654
1655 request_data_sz = ioc->diag_buffer_sz[buffer_type];
1656 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1657 pci_free_consistent(ioc->pdev, request_data_sz,
1658 request_data, request_data_dma);
1659 ioc->diag_buffer[buffer_type] = NULL;
1660 ioc->diag_buffer_status[buffer_type] = 0;
1661 return 0;
1662}
1663
1664/**
1665 * _ctl_diag_query - query relevant info associated with diag buffers
1666 * @ioc: per adapter object
1667 * @arg - user space buffer containing ioctl content
1668 *
1669 * The application will send only buffer_type and unique_id. Driver will
1670 * inspect unique_id first, if valid, fill in all the info. If unique_id is
1671 * 0x00, the driver will return info specified by Buffer Type.
1672 */
1673static long
1674_ctl_diag_query(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1675{
1676 struct mpt3_diag_query karg;
1677 void *request_data;
1678 int i;
1679 u8 buffer_type;
1680
1681 if (copy_from_user(&karg, arg, sizeof(karg))) {
1682 pr_err("failure at %s:%d/%s()!\n",
1683 __FILE__, __LINE__, __func__);
1684 return -EFAULT;
1685 }
1686
1687 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1688 __func__));
1689
1690 karg.application_flags = 0;
1691 buffer_type = karg.buffer_type;
1692
1693 if (!_ctl_diag_capability(ioc, buffer_type)) {
1694 pr_err(MPT3SAS_FMT
1695 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1696 ioc->name, __func__, buffer_type);
1697 return -EPERM;
1698 }
1699
1700 if ((ioc->diag_buffer_status[buffer_type] &
1701 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1702 pr_err(MPT3SAS_FMT
1703 "%s: buffer_type(0x%02x) is not registered\n",
1704 ioc->name, __func__, buffer_type);
1705 return -EINVAL;
1706 }
1707
1708 if (karg.unique_id & 0xffffff00) {
1709 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1710 pr_err(MPT3SAS_FMT
1711 "%s: unique_id(0x%08x) is not registered\n",
1712 ioc->name, __func__, karg.unique_id);
1713 return -EINVAL;
1714 }
1715 }
1716
1717 request_data = ioc->diag_buffer[buffer_type];
1718 if (!request_data) {
1719 pr_err(MPT3SAS_FMT
1720 "%s: doesn't have buffer for buffer_type(0x%02x)\n",
1721 ioc->name, __func__, buffer_type);
1722 return -ENOMEM;
1723 }
1724
1725 if (ioc->diag_buffer_status[buffer_type] & MPT3_DIAG_BUFFER_IS_RELEASED)
1726 karg.application_flags = (MPT3_APP_FLAGS_APP_OWNED |
1727 MPT3_APP_FLAGS_BUFFER_VALID);
1728 else
1729 karg.application_flags = (MPT3_APP_FLAGS_APP_OWNED |
1730 MPT3_APP_FLAGS_BUFFER_VALID |
1731 MPT3_APP_FLAGS_FW_BUFFER_ACCESS);
1732
1733 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
1734 karg.product_specific[i] =
1735 ioc->product_specific[buffer_type][i];
1736
1737 karg.total_buffer_size = ioc->diag_buffer_sz[buffer_type];
1738 karg.driver_added_buffer_size = 0;
1739 karg.unique_id = ioc->unique_id[buffer_type];
1740 karg.diagnostic_flags = ioc->diagnostic_flags[buffer_type];
1741
1742 if (copy_to_user(arg, &karg, sizeof(struct mpt3_diag_query))) {
1743 pr_err(MPT3SAS_FMT
1744 "%s: unable to write mpt3_diag_query data @ %p\n",
1745 ioc->name, __func__, arg);
1746 return -EFAULT;
1747 }
1748 return 0;
1749}
1750
1751/**
1752 * mpt3sas_send_diag_release - Diag Release Message
1753 * @ioc: per adapter object
1754 * @buffer_type - specifies either TRACE, SNAPSHOT, or EXTENDED
1755 * @issue_reset - specifies whether host reset is required.
1756 *
1757 */
1758int
1759mpt3sas_send_diag_release(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type,
1760 u8 *issue_reset)
1761{
1762 Mpi2DiagReleaseRequest_t *mpi_request;
1763 Mpi2DiagReleaseReply_t *mpi_reply;
1764 u16 smid;
1765 u16 ioc_status;
1766 u32 ioc_state;
1767 int rc;
1768 unsigned long timeleft;
1769
1770 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1771 __func__));
1772
1773 rc = 0;
1774 *issue_reset = 0;
1775
1776 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1777 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1778 if (ioc->diag_buffer_status[buffer_type] &
1779 MPT3_DIAG_BUFFER_IS_REGISTERED)
1780 ioc->diag_buffer_status[buffer_type] |=
1781 MPT3_DIAG_BUFFER_IS_RELEASED;
1782 dctlprintk(ioc, pr_info(MPT3SAS_FMT
1783 "%s: skipping due to FAULT state\n", ioc->name,
1784 __func__));
1785 rc = -EAGAIN;
1786 goto out;
1787 }
1788
1789 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
1790 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
1791 ioc->name, __func__);
1792 rc = -EAGAIN;
1793 goto out;
1794 }
1795
1796 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1797 if (!smid) {
1798 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
1799 ioc->name, __func__);
1800 rc = -EAGAIN;
1801 goto out;
1802 }
1803
1804 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
1805 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1806 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1807 ioc->ctl_cmds.smid = smid;
1808
1809 mpi_request->Function = MPI2_FUNCTION_DIAG_RELEASE;
1810 mpi_request->BufferType = buffer_type;
1811 mpi_request->VF_ID = 0; /* TODO */
1812 mpi_request->VP_ID = 0;
1813
1814 init_completion(&ioc->ctl_cmds.done);
1815 mpt3sas_base_put_smid_default(ioc, smid);
1816 timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
1817 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
1818
1819 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1820 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
1821 __func__);
1822 _debug_dump_mf(mpi_request,
1823 sizeof(Mpi2DiagReleaseRequest_t)/4);
1824 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
1825 *issue_reset = 1;
1826 rc = -EFAULT;
1827 goto out;
1828 }
1829
1830 /* process the completed Reply Message Frame */
1831 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
1832 pr_err(MPT3SAS_FMT "%s: no reply message\n",
1833 ioc->name, __func__);
1834 rc = -EFAULT;
1835 goto out;
1836 }
1837
1838 mpi_reply = ioc->ctl_cmds.reply;
1839 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1840
1841 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1842 ioc->diag_buffer_status[buffer_type] |=
1843 MPT3_DIAG_BUFFER_IS_RELEASED;
1844 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
1845 ioc->name, __func__));
1846 } else {
1847 pr_info(MPT3SAS_FMT
1848 "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
1849 ioc->name, __func__,
1850 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
1851 rc = -EFAULT;
1852 }
1853
1854 out:
1855 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1856 return rc;
1857}
1858
1859/**
1860 * _ctl_diag_release - request to send Diag Release Message to firmware
1861 * @arg - user space buffer containing ioctl content
1862 *
1863 * This allows ownership of the specified buffer to returned to the driver,
1864 * allowing an application to read the buffer without fear that firmware is
1865 * overwritting information in the buffer.
1866 */
1867static long
1868_ctl_diag_release(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1869{
1870 struct mpt3_diag_release karg;
1871 void *request_data;
1872 int rc;
1873 u8 buffer_type;
1874 u8 issue_reset = 0;
1875
1876 if (copy_from_user(&karg, arg, sizeof(karg))) {
1877 pr_err("failure at %s:%d/%s()!\n",
1878 __FILE__, __LINE__, __func__);
1879 return -EFAULT;
1880 }
1881
1882 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1883 __func__));
1884
1885 buffer_type = karg.unique_id & 0x000000ff;
1886 if (!_ctl_diag_capability(ioc, buffer_type)) {
1887 pr_err(MPT3SAS_FMT
1888 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1889 ioc->name, __func__, buffer_type);
1890 return -EPERM;
1891 }
1892
1893 if ((ioc->diag_buffer_status[buffer_type] &
1894 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1895 pr_err(MPT3SAS_FMT
1896 "%s: buffer_type(0x%02x) is not registered\n",
1897 ioc->name, __func__, buffer_type);
1898 return -EINVAL;
1899 }
1900
1901 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1902 pr_err(MPT3SAS_FMT
1903 "%s: unique_id(0x%08x) is not registered\n",
1904 ioc->name, __func__, karg.unique_id);
1905 return -EINVAL;
1906 }
1907
1908 if (ioc->diag_buffer_status[buffer_type] &
1909 MPT3_DIAG_BUFFER_IS_RELEASED) {
1910 pr_err(MPT3SAS_FMT
1911 "%s: buffer_type(0x%02x) is already released\n",
1912 ioc->name, __func__,
1913 buffer_type);
1914 return 0;
1915 }
1916
1917 request_data = ioc->diag_buffer[buffer_type];
1918
1919 if (!request_data) {
1920 pr_err(MPT3SAS_FMT
1921 "%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
1922 ioc->name, __func__, buffer_type);
1923 return -ENOMEM;
1924 }
1925
1926 /* buffers were released by due to host reset */
1927 if ((ioc->diag_buffer_status[buffer_type] &
1928 MPT3_DIAG_BUFFER_IS_DIAG_RESET)) {
1929 ioc->diag_buffer_status[buffer_type] |=
1930 MPT3_DIAG_BUFFER_IS_RELEASED;
1931 ioc->diag_buffer_status[buffer_type] &=
1932 ~MPT3_DIAG_BUFFER_IS_DIAG_RESET;
1933 pr_err(MPT3SAS_FMT
1934 "%s: buffer_type(0x%02x) was released due to host reset\n",
1935 ioc->name, __func__, buffer_type);
1936 return 0;
1937 }
1938
1939 rc = mpt3sas_send_diag_release(ioc, buffer_type, &issue_reset);
1940
1941 if (issue_reset)
1942 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1943 FORCE_BIG_HAMMER);
1944
1945 return rc;
1946}
1947
1948/**
1949 * _ctl_diag_read_buffer - request for copy of the diag buffer
1950 * @ioc: per adapter object
1951 * @arg - user space buffer containing ioctl content
1952 */
1953static long
1954_ctl_diag_read_buffer(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1955{
1956 struct mpt3_diag_read_buffer karg;
1957 struct mpt3_diag_read_buffer __user *uarg = arg;
1958 void *request_data, *diag_data;
1959 Mpi2DiagBufferPostRequest_t *mpi_request;
1960 Mpi2DiagBufferPostReply_t *mpi_reply;
1961 int rc, i;
1962 u8 buffer_type;
1963 unsigned long timeleft, request_size, copy_size;
1964 u16 smid;
1965 u16 ioc_status;
1966 u8 issue_reset = 0;
1967
1968 if (copy_from_user(&karg, arg, sizeof(karg))) {
1969 pr_err("failure at %s:%d/%s()!\n",
1970 __FILE__, __LINE__, __func__);
1971 return -EFAULT;
1972 }
1973
1974 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1975 __func__));
1976
1977 buffer_type = karg.unique_id & 0x000000ff;
1978 if (!_ctl_diag_capability(ioc, buffer_type)) {
1979 pr_err(MPT3SAS_FMT
1980 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1981 ioc->name, __func__, buffer_type);
1982 return -EPERM;
1983 }
1984
1985 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1986 pr_err(MPT3SAS_FMT
1987 "%s: unique_id(0x%08x) is not registered\n",
1988 ioc->name, __func__, karg.unique_id);
1989 return -EINVAL;
1990 }
1991
1992 request_data = ioc->diag_buffer[buffer_type];
1993 if (!request_data) {
1994 pr_err(MPT3SAS_FMT
1995 "%s: doesn't have buffer for buffer_type(0x%02x)\n",
1996 ioc->name, __func__, buffer_type);
1997 return -ENOMEM;
1998 }
1999
2000 request_size = ioc->diag_buffer_sz[buffer_type];
2001
2002 if ((karg.starting_offset % 4) || (karg.bytes_to_read % 4)) {
2003 pr_err(MPT3SAS_FMT "%s: either the starting_offset " \
2004 "or bytes_to_read are not 4 byte aligned\n", ioc->name,
2005 __func__);
2006 return -EINVAL;
2007 }
2008
2009 if (karg.starting_offset > request_size)
2010 return -EINVAL;
2011
2012 diag_data = (void *)(request_data + karg.starting_offset);
2013 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2014 "%s: diag_buffer(%p), offset(%d), sz(%d)\n",
2015 ioc->name, __func__,
2016 diag_data, karg.starting_offset, karg.bytes_to_read));
2017
2018 /* Truncate data on requests that are too large */
2019 if ((diag_data + karg.bytes_to_read < diag_data) ||
2020 (diag_data + karg.bytes_to_read > request_data + request_size))
2021 copy_size = request_size - karg.starting_offset;
2022 else
2023 copy_size = karg.bytes_to_read;
2024
2025 if (copy_to_user((void __user *)uarg->diagnostic_data,
2026 diag_data, copy_size)) {
2027 pr_err(MPT3SAS_FMT
2028 "%s: Unable to write mpt_diag_read_buffer_t data @ %p\n",
2029 ioc->name, __func__, diag_data);
2030 return -EFAULT;
2031 }
2032
2033 if ((karg.flags & MPT3_FLAGS_REREGISTER) == 0)
2034 return 0;
2035
2036 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2037 "%s: Reregister buffer_type(0x%02x)\n",
2038 ioc->name, __func__, buffer_type));
2039 if ((ioc->diag_buffer_status[buffer_type] &
2040 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
2041 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2042 "%s: buffer_type(0x%02x) is still registered\n",
2043 ioc->name, __func__, buffer_type));
2044 return 0;
2045 }
2046 /* Get a free request frame and save the message context.
2047 */
2048
2049 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
2050 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
2051 ioc->name, __func__);
2052 rc = -EAGAIN;
2053 goto out;
2054 }
2055
2056 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
2057 if (!smid) {
2058 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
2059 ioc->name, __func__);
2060 rc = -EAGAIN;
2061 goto out;
2062 }
2063
2064 rc = 0;
2065 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
2066 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
2067 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
2068 ioc->ctl_cmds.smid = smid;
2069
2070 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
2071 mpi_request->BufferType = buffer_type;
2072 mpi_request->BufferLength =
2073 cpu_to_le32(ioc->diag_buffer_sz[buffer_type]);
2074 mpi_request->BufferAddress =
2075 cpu_to_le64(ioc->diag_buffer_dma[buffer_type]);
2076 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
2077 mpi_request->ProductSpecific[i] =
2078 cpu_to_le32(ioc->product_specific[buffer_type][i]);
2079 mpi_request->VF_ID = 0; /* TODO */
2080 mpi_request->VP_ID = 0;
2081
2082 init_completion(&ioc->ctl_cmds.done);
2083 mpt3sas_base_put_smid_default(ioc, smid);
2084 timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
2085 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
2086
2087 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
2088 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
2089 __func__);
2090 _debug_dump_mf(mpi_request,
2091 sizeof(Mpi2DiagBufferPostRequest_t)/4);
2092 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
2093 issue_reset = 1;
2094 goto issue_host_reset;
2095 }
2096
2097 /* process the completed Reply Message Frame */
2098 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
2099 pr_err(MPT3SAS_FMT "%s: no reply message\n",
2100 ioc->name, __func__);
2101 rc = -EFAULT;
2102 goto out;
2103 }
2104
2105 mpi_reply = ioc->ctl_cmds.reply;
2106 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
2107
2108 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
2109 ioc->diag_buffer_status[buffer_type] |=
2110 MPT3_DIAG_BUFFER_IS_REGISTERED;
2111 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
2112 ioc->name, __func__));
2113 } else {
2114 pr_info(MPT3SAS_FMT
2115 "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
2116 ioc->name, __func__,
2117 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
2118 rc = -EFAULT;
2119 }
2120
2121 issue_host_reset:
2122 if (issue_reset)
2123 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2124 FORCE_BIG_HAMMER);
2125
2126 out:
2127
2128 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
2129 return rc;
2130}
2131
2132
2133
2134#ifdef CONFIG_COMPAT
2135/**
2136 * _ctl_compat_mpt_command - convert 32bit pointers to 64bit.
2137 * @ioc: per adapter object
2138 * @cmd - ioctl opcode
2139 * @arg - (struct mpt3_ioctl_command32)
2140 *
2141 * MPT3COMMAND32 - Handle 32bit applications running on 64bit os.
2142 */
2143static long
2144_ctl_compat_mpt_command(struct MPT3SAS_ADAPTER *ioc, unsigned cmd,
2145 void __user *arg)
2146{
2147 struct mpt3_ioctl_command32 karg32;
2148 struct mpt3_ioctl_command32 __user *uarg;
2149 struct mpt3_ioctl_command karg;
2150
2151 if (_IOC_SIZE(cmd) != sizeof(struct mpt3_ioctl_command32))
2152 return -EINVAL;
2153
2154 uarg = (struct mpt3_ioctl_command32 __user *) arg;
2155
2156 if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32))) {
2157 pr_err("failure at %s:%d/%s()!\n",
2158 __FILE__, __LINE__, __func__);
2159 return -EFAULT;
2160 }
2161
2162 memset(&karg, 0, sizeof(struct mpt3_ioctl_command));
2163 karg.hdr.ioc_number = karg32.hdr.ioc_number;
2164 karg.hdr.port_number = karg32.hdr.port_number;
2165 karg.hdr.max_data_size = karg32.hdr.max_data_size;
2166 karg.timeout = karg32.timeout;
2167 karg.max_reply_bytes = karg32.max_reply_bytes;
2168 karg.data_in_size = karg32.data_in_size;
2169 karg.data_out_size = karg32.data_out_size;
2170 karg.max_sense_bytes = karg32.max_sense_bytes;
2171 karg.data_sge_offset = karg32.data_sge_offset;
2172 karg.reply_frame_buf_ptr = compat_ptr(karg32.reply_frame_buf_ptr);
2173 karg.data_in_buf_ptr = compat_ptr(karg32.data_in_buf_ptr);
2174 karg.data_out_buf_ptr = compat_ptr(karg32.data_out_buf_ptr);
2175 karg.sense_data_ptr = compat_ptr(karg32.sense_data_ptr);
2176 return _ctl_do_mpt_command(ioc, karg, &uarg->mf);
2177}
2178#endif
2179
2180/**
2181 * _ctl_ioctl_main - main ioctl entry point
2182 * @file - (struct file)
2183 * @cmd - ioctl opcode
2184 * @arg -
2185 * compat - handles 32 bit applications in 64bit os
2186 */
2187static long
2188_ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg,
2189 u8 compat)
2190{
2191 struct MPT3SAS_ADAPTER *ioc;
2192 struct mpt3_ioctl_header ioctl_header;
2193 enum block_state state;
2194 long ret = -EINVAL;
2195
2196 /* get IOCTL header */
2197 if (copy_from_user(&ioctl_header, (char __user *)arg,
2198 sizeof(struct mpt3_ioctl_header))) {
2199 pr_err("failure at %s:%d/%s()!\n",
2200 __FILE__, __LINE__, __func__);
2201 return -EFAULT;
2202 }
2203
2204 if (_ctl_verify_adapter(ioctl_header.ioc_number, &ioc) == -1 || !ioc)
2205 return -ENODEV;
2206
2207 if (ioc->shost_recovery || ioc->pci_error_recovery ||
2208 ioc->is_driver_loading)
2209 return -EAGAIN;
2210
2211 state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING;
2212 if (state == NON_BLOCKING) {
2213 if (!mutex_trylock(&ioc->ctl_cmds.mutex))
2214 return -EAGAIN;
2215 } else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex))
2216 return -ERESTARTSYS;
2217
2218
2219 switch (cmd) {
2220 case MPT3IOCINFO:
2221 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_iocinfo))
2222 ret = _ctl_getiocinfo(ioc, arg);
2223 break;
2224#ifdef CONFIG_COMPAT
2225 case MPT3COMMAND32:
2226#endif
2227 case MPT3COMMAND:
2228 {
2229 struct mpt3_ioctl_command __user *uarg;
2230 struct mpt3_ioctl_command karg;
2231
2232#ifdef CONFIG_COMPAT
2233 if (compat) {
2234 ret = _ctl_compat_mpt_command(ioc, cmd, arg);
2235 break;
2236 }
2237#endif
2238 if (copy_from_user(&karg, arg, sizeof(karg))) {
2239 pr_err("failure at %s:%d/%s()!\n",
2240 __FILE__, __LINE__, __func__);
2241 ret = -EFAULT;
2242 break;
2243 }
2244
2245 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_command)) {
2246 uarg = arg;
2247 ret = _ctl_do_mpt_command(ioc, karg, &uarg->mf);
2248 }
2249 break;
2250 }
2251 case MPT3EVENTQUERY:
2252 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventquery))
2253 ret = _ctl_eventquery(ioc, arg);
2254 break;
2255 case MPT3EVENTENABLE:
2256 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventenable))
2257 ret = _ctl_eventenable(ioc, arg);
2258 break;
2259 case MPT3EVENTREPORT:
2260 ret = _ctl_eventreport(ioc, arg);
2261 break;
2262 case MPT3HARDRESET:
2263 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_diag_reset))
2264 ret = _ctl_do_reset(ioc, arg);
2265 break;
2266 case MPT3BTDHMAPPING:
2267 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_btdh_mapping))
2268 ret = _ctl_btdh_mapping(ioc, arg);
2269 break;
2270 case MPT3DIAGREGISTER:
2271 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_register))
2272 ret = _ctl_diag_register(ioc, arg);
2273 break;
2274 case MPT3DIAGUNREGISTER:
2275 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_unregister))
2276 ret = _ctl_diag_unregister(ioc, arg);
2277 break;
2278 case MPT3DIAGQUERY:
2279 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_query))
2280 ret = _ctl_diag_query(ioc, arg);
2281 break;
2282 case MPT3DIAGRELEASE:
2283 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_release))
2284 ret = _ctl_diag_release(ioc, arg);
2285 break;
2286 case MPT3DIAGREADBUFFER:
2287 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_read_buffer))
2288 ret = _ctl_diag_read_buffer(ioc, arg);
2289 break;
2290 default:
2291 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2292 "unsupported ioctl opcode(0x%08x)\n", ioc->name, cmd));
2293 break;
2294 }
2295
2296 mutex_unlock(&ioc->ctl_cmds.mutex);
2297 return ret;
2298}
2299
2300/**
8a7e4c24 2301 * ctl_ioctl - main ioctl entry point (unlocked)
f92363d1
SR		 2302 * @file - (struct file)
2303 * @cmd - ioctl opcode
2304 * @arg -
2305 */
8a7e4c24
SR		 2306long
2307ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
f92363d1
SR		 2308{
2309 long ret;
2310
2311 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0);
2312 return ret;
2313}
2314
2315#ifdef CONFIG_COMPAT
2316/**
8a7e4c24 2317 * ctl_ioctl_compat - main ioctl entry point (compat)
f92363d1
SR		 2318 * @file -
2319 * @cmd -
2320 * @arg -
2321 *
2322 * This routine handles 32 bit applications in 64bit os.
2323 */
8a7e4c24
SR		 2324long
2325ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
f92363d1
SR		 2326{
2327 long ret;
2328
2329 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1);
2330 return ret;
2331}
2332#endif
2333
2334/* scsi host attributes */
2335/**
2336 * _ctl_version_fw_show - firmware version
2337 * @cdev - pointer to embedded class device
2338 * @buf - the buffer returned
2339 *
2340 * A sysfs 'read-only' shost attribute.
2341 */
2342static ssize_t
2343_ctl_version_fw_show(struct device *cdev, struct device_attribute *attr,
2344 char *buf)
2345{
2346 struct Scsi_Host *shost = class_to_shost(cdev);
2347 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2348
2349 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2350 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
2351 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
2352 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
2353 ioc->facts.FWVersion.Word & 0x000000FF);
2354}
2355static DEVICE_ATTR(version_fw, S_IRUGO, _ctl_version_fw_show, NULL);
2356
2357/**
2358 * _ctl_version_bios_show - bios version
2359 * @cdev - pointer to embedded class device
2360 * @buf - the buffer returned
2361 *
2362 * A sysfs 'read-only' shost attribute.
2363 */
2364static ssize_t
2365_ctl_version_bios_show(struct device *cdev, struct device_attribute *attr,
2366 char *buf)
2367{
2368 struct Scsi_Host *shost = class_to_shost(cdev);
2369 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2370
2371 u32 version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
2372
2373 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2374 (version & 0xFF000000) >> 24,
2375 (version & 0x00FF0000) >> 16,
2376 (version & 0x0000FF00) >> 8,
2377 version & 0x000000FF);
2378}
2379static DEVICE_ATTR(version_bios, S_IRUGO, _ctl_version_bios_show, NULL);
2380
2381/**
2382 * _ctl_version_mpi_show - MPI (message passing interface) version
2383 * @cdev - pointer to embedded class device
2384 * @buf - the buffer returned
2385 *
2386 * A sysfs 'read-only' shost attribute.
2387 */
2388static ssize_t
2389_ctl_version_mpi_show(struct device *cdev, struct device_attribute *attr,
2390 char *buf)
2391{
2392 struct Scsi_Host *shost = class_to_shost(cdev);
2393 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2394
2395 return snprintf(buf, PAGE_SIZE, "%03x.%02x\n",
2396 ioc->facts.MsgVersion, ioc->facts.HeaderVersion >> 8);
2397}
2398static DEVICE_ATTR(version_mpi, S_IRUGO, _ctl_version_mpi_show, NULL);
2399
2400/**
2401 * _ctl_version_product_show - product name
2402 * @cdev - pointer to embedded class device
2403 * @buf - the buffer returned
2404 *
2405 * A sysfs 'read-only' shost attribute.
2406 */
2407static ssize_t
2408_ctl_version_product_show(struct device *cdev, struct device_attribute *attr,
2409 char *buf)
2410{
2411 struct Scsi_Host *shost = class_to_shost(cdev);
2412 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2413
2414 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.ChipName);
2415}
2416static DEVICE_ATTR(version_product, S_IRUGO, _ctl_version_product_show, NULL);
2417
2418/**
2419 * _ctl_version_nvdata_persistent_show - ndvata persistent version
2420 * @cdev - pointer to embedded class device
2421 * @buf - the buffer returned
2422 *
2423 * A sysfs 'read-only' shost attribute.
2424 */
2425static ssize_t
2426_ctl_version_nvdata_persistent_show(struct device *cdev,
2427 struct device_attribute *attr, char *buf)
2428{
2429 struct Scsi_Host *shost = class_to_shost(cdev);
2430 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2431
2432 return snprintf(buf, PAGE_SIZE, "%08xh\n",
2433 le32_to_cpu(ioc->iounit_pg0.NvdataVersionPersistent.Word));
2434}
2435static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
2436 _ctl_version_nvdata_persistent_show, NULL);
2437
2438/**
2439 * _ctl_version_nvdata_default_show - nvdata default version
2440 * @cdev - pointer to embedded class device
2441 * @buf - the buffer returned
2442 *
2443 * A sysfs 'read-only' shost attribute.
2444 */
2445static ssize_t
2446_ctl_version_nvdata_default_show(struct device *cdev, struct device_attribute
2447 *attr, char *buf)
2448{
2449 struct Scsi_Host *shost = class_to_shost(cdev);
2450 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2451
2452 return snprintf(buf, PAGE_SIZE, "%08xh\n",
2453 le32_to_cpu(ioc->iounit_pg0.NvdataVersionDefault.Word));
2454}
2455static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
2456 _ctl_version_nvdata_default_show, NULL);
2457
2458/**
2459 * _ctl_board_name_show - board name
2460 * @cdev - pointer to embedded class device
2461 * @buf - the buffer returned
2462 *
2463 * A sysfs 'read-only' shost attribute.
2464 */
2465static ssize_t
2466_ctl_board_name_show(struct device *cdev, struct device_attribute *attr,
2467 char *buf)
2468{
2469 struct Scsi_Host *shost = class_to_shost(cdev);
2470 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2471
2472 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardName);
2473}
2474static DEVICE_ATTR(board_name, S_IRUGO, _ctl_board_name_show, NULL);
2475
2476/**
2477 * _ctl_board_assembly_show - board assembly name
2478 * @cdev - pointer to embedded class device
2479 * @buf - the buffer returned
2480 *
2481 * A sysfs 'read-only' shost attribute.
2482 */
2483static ssize_t
2484_ctl_board_assembly_show(struct device *cdev, struct device_attribute *attr,
2485 char *buf)
2486{
2487 struct Scsi_Host *shost = class_to_shost(cdev);
2488 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2489
2490 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardAssembly);
2491}
2492static DEVICE_ATTR(board_assembly, S_IRUGO, _ctl_board_assembly_show, NULL);
2493
2494/**
2495 * _ctl_board_tracer_show - board tracer number
2496 * @cdev - pointer to embedded class device
2497 * @buf - the buffer returned
2498 *
2499 * A sysfs 'read-only' shost attribute.
2500 */
2501static ssize_t
2502_ctl_board_tracer_show(struct device *cdev, struct device_attribute *attr,
2503 char *buf)
2504{
2505 struct Scsi_Host *shost = class_to_shost(cdev);
2506 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2507
2508 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardTracerNumber);
2509}
2510static DEVICE_ATTR(board_tracer, S_IRUGO, _ctl_board_tracer_show, NULL);
2511
2512/**
2513 * _ctl_io_delay_show - io missing delay
2514 * @cdev - pointer to embedded class device
2515 * @buf - the buffer returned
2516 *
2517 * This is for firmware implemention for deboucing device
2518 * removal events.
2519 *
2520 * A sysfs 'read-only' shost attribute.
2521 */
2522static ssize_t
2523_ctl_io_delay_show(struct device *cdev, struct device_attribute *attr,
2524 char *buf)
2525{
2526 struct Scsi_Host *shost = class_to_shost(cdev);
2527 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2528
2529 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
2530}
2531static DEVICE_ATTR(io_delay, S_IRUGO, _ctl_io_delay_show, NULL);
2532
2533/**
2534 * _ctl_device_delay_show - device missing delay
2535 * @cdev - pointer to embedded class device
2536 * @buf - the buffer returned
2537 *
2538 * This is for firmware implemention for deboucing device
2539 * removal events.
2540 *
2541 * A sysfs 'read-only' shost attribute.
2542 */
2543static ssize_t
2544_ctl_device_delay_show(struct device *cdev, struct device_attribute *attr,
2545 char *buf)
2546{
2547 struct Scsi_Host *shost = class_to_shost(cdev);
2548 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2549
2550 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
2551}
2552static DEVICE_ATTR(device_delay, S_IRUGO, _ctl_device_delay_show, NULL);
2553
2554/**
2555 * _ctl_fw_queue_depth_show - global credits
2556 * @cdev - pointer to embedded class device
2557 * @buf - the buffer returned
2558 *
2559 * This is firmware queue depth limit
2560 *
2561 * A sysfs 'read-only' shost attribute.
2562 */
2563static ssize_t
2564_ctl_fw_queue_depth_show(struct device *cdev, struct device_attribute *attr,
2565 char *buf)
2566{
2567 struct Scsi_Host *shost = class_to_shost(cdev);
2568 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2569
2570 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->facts.RequestCredit);
2571}
2572static DEVICE_ATTR(fw_queue_depth, S_IRUGO, _ctl_fw_queue_depth_show, NULL);
2573
2574/**
2575 * _ctl_sas_address_show - sas address
2576 * @cdev - pointer to embedded class device
2577 * @buf - the buffer returned
2578 *
2579 * This is the controller sas address
2580 *
2581 * A sysfs 'read-only' shost attribute.
2582 */
2583static ssize_t
2584_ctl_host_sas_address_show(struct device *cdev, struct device_attribute *attr,
2585 char *buf)
2586
2587{
2588 struct Scsi_Host *shost = class_to_shost(cdev);
2589 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2590
2591 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
2592 (unsigned long long)ioc->sas_hba.sas_address);
2593}
2594static DEVICE_ATTR(host_sas_address, S_IRUGO,
2595 _ctl_host_sas_address_show, NULL);
2596
2597/**
2598 * _ctl_logging_level_show - logging level
2599 * @cdev - pointer to embedded class device
2600 * @buf - the buffer returned
2601 *
2602 * A sysfs 'read/write' shost attribute.
2603 */
2604static ssize_t
2605_ctl_logging_level_show(struct device *cdev, struct device_attribute *attr,
2606 char *buf)
2607{
2608 struct Scsi_Host *shost = class_to_shost(cdev);
2609 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2610
2611 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->logging_level);
2612}
2613static ssize_t
2614_ctl_logging_level_store(struct device *cdev, struct device_attribute *attr,
2615 const char *buf, size_t count)
2616{
2617 struct Scsi_Host *shost = class_to_shost(cdev);
2618 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2619 int val = 0;
2620
2621 if (sscanf(buf, "%x", &val) != 1)
2622 return -EINVAL;
2623
2624 ioc->logging_level = val;
2625 pr_info(MPT3SAS_FMT "logging_level=%08xh\n", ioc->name,
2626 ioc->logging_level);
2627 return strlen(buf);
2628}
2629static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR, _ctl_logging_level_show,
2630 _ctl_logging_level_store);
2631
2632/**
2633 * _ctl_fwfault_debug_show - show/store fwfault_debug
2634 * @cdev - pointer to embedded class device
2635 * @buf - the buffer returned
2636 *
2637 * mpt3sas_fwfault_debug is command line option
2638 * A sysfs 'read/write' shost attribute.
2639 */
2640static ssize_t
2641_ctl_fwfault_debug_show(struct device *cdev, struct device_attribute *attr,
2642 char *buf)
2643{
2644 struct Scsi_Host *shost = class_to_shost(cdev);
2645 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2646
2647 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->fwfault_debug);
2648}
2649static ssize_t
2650_ctl_fwfault_debug_store(struct device *cdev, struct device_attribute *attr,
2651 const char *buf, size_t count)
2652{
2653 struct Scsi_Host *shost = class_to_shost(cdev);
2654 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2655 int val = 0;
2656
2657 if (sscanf(buf, "%d", &val) != 1)
2658 return -EINVAL;
2659
2660 ioc->fwfault_debug = val;
2661 pr_info(MPT3SAS_FMT "fwfault_debug=%d\n", ioc->name,
2662 ioc->fwfault_debug);
2663 return strlen(buf);
2664}
2665static DEVICE_ATTR(fwfault_debug, S_IRUGO | S_IWUSR,
2666 _ctl_fwfault_debug_show, _ctl_fwfault_debug_store);
2667
2668/**
2669 * _ctl_ioc_reset_count_show - ioc reset count
2670 * @cdev - pointer to embedded class device
2671 * @buf - the buffer returned
2672 *
2673 * This is firmware queue depth limit
2674 *
2675 * A sysfs 'read-only' shost attribute.
2676 */
2677static ssize_t
2678_ctl_ioc_reset_count_show(struct device *cdev, struct device_attribute *attr,
2679 char *buf)
2680{
2681 struct Scsi_Host *shost = class_to_shost(cdev);
2682 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2683
2684 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->ioc_reset_count);
2685}
2686static DEVICE_ATTR(ioc_reset_count, S_IRUGO, _ctl_ioc_reset_count_show, NULL);
2687
2688/**
2689 * _ctl_ioc_reply_queue_count_show - number of reply queues
2690 * @cdev - pointer to embedded class device
2691 * @buf - the buffer returned
2692 *
2693 * This is number of reply queues
2694 *
2695 * A sysfs 'read-only' shost attribute.
2696 */
2697static ssize_t
2698_ctl_ioc_reply_queue_count_show(struct device *cdev,
2699 struct device_attribute *attr, char *buf)
2700{
2701 u8 reply_queue_count;
2702 struct Scsi_Host *shost = class_to_shost(cdev);
2703 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2704
2705 if ((ioc->facts.IOCCapabilities &
2706 MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX) && ioc->msix_enable)
2707 reply_queue_count = ioc->reply_queue_count;
2708 else
2709 reply_queue_count = 1;
2710
2711 return snprintf(buf, PAGE_SIZE, "%d\n", reply_queue_count);
2712}
2713static DEVICE_ATTR(reply_queue_count, S_IRUGO, _ctl_ioc_reply_queue_count_show,
2714 NULL);
2715
2716struct DIAG_BUFFER_START {
2717 __le32 Size;
2718 __le32 DiagVersion;
2719 u8 BufferType;
2720 u8 Reserved[3];
2721 __le32 Reserved1;
2722 __le32 Reserved2;
2723 __le32 Reserved3;
2724};
2725
2726/**
2727 * _ctl_host_trace_buffer_size_show - host buffer size (trace only)
2728 * @cdev - pointer to embedded class device
2729 * @buf - the buffer returned
2730 *
2731 * A sysfs 'read-only' shost attribute.
2732 */
2733static ssize_t
2734_ctl_host_trace_buffer_size_show(struct device *cdev,
2735 struct device_attribute *attr, char *buf)
2736{
2737 struct Scsi_Host *shost = class_to_shost(cdev);
2738 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2739 u32 size = 0;
2740 struct DIAG_BUFFER_START *request_data;
2741
2742 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
2743 pr_err(MPT3SAS_FMT
2744 "%s: host_trace_buffer is not registered\n",
2745 ioc->name, __func__);
2746 return 0;
2747 }
2748
2749 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2750 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
2751 pr_err(MPT3SAS_FMT
2752 "%s: host_trace_buffer is not registered\n",
2753 ioc->name, __func__);
2754 return 0;
2755 }
2756
2757 request_data = (struct DIAG_BUFFER_START *)
2758 ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE];
2759 if ((le32_to_cpu(request_data->DiagVersion) == 0x00000000 ||
2760 le32_to_cpu(request_data->DiagVersion) == 0x01000000 ||
2761 le32_to_cpu(request_data->DiagVersion) == 0x01010000) &&
2762 le32_to_cpu(request_data->Reserved3) == 0x4742444c)
2763 size = le32_to_cpu(request_data->Size);
2764
2765 ioc->ring_buffer_sz = size;
2766 return snprintf(buf, PAGE_SIZE, "%d\n", size);
2767}
2768static DEVICE_ATTR(host_trace_buffer_size, S_IRUGO,
2769 _ctl_host_trace_buffer_size_show, NULL);
2770
2771/**
2772 * _ctl_host_trace_buffer_show - firmware ring buffer (trace only)
2773 * @cdev - pointer to embedded class device
2774 * @buf - the buffer returned
2775 *
2776 * A sysfs 'read/write' shost attribute.
2777 *
2778 * You will only be able to read 4k bytes of ring buffer at a time.
2779 * In order to read beyond 4k bytes, you will have to write out the
2780 * offset to the same attribute, it will move the pointer.
2781 */
2782static ssize_t
2783_ctl_host_trace_buffer_show(struct device *cdev, struct device_attribute *attr,
2784 char *buf)
2785{
2786 struct Scsi_Host *shost = class_to_shost(cdev);
2787 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2788 void *request_data;
2789 u32 size;
2790
2791 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
2792 pr_err(MPT3SAS_FMT
2793 "%s: host_trace_buffer is not registered\n",
2794 ioc->name, __func__);
2795 return 0;
2796 }
2797
2798 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2799 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
2800 pr_err(MPT3SAS_FMT
2801 "%s: host_trace_buffer is not registered\n",
2802 ioc->name, __func__);
2803 return 0;
2804 }
2805
2806 if (ioc->ring_buffer_offset > ioc->ring_buffer_sz)
2807 return 0;
2808
2809 size = ioc->ring_buffer_sz - ioc->ring_buffer_offset;
2810 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size;
2811 request_data = ioc->diag_buffer[0] + ioc->ring_buffer_offset;
2812 memcpy(buf, request_data, size);
2813 return size;
2814}
2815
2816static ssize_t
2817_ctl_host_trace_buffer_store(struct device *cdev, struct device_attribute *attr,
2818 const char *buf, size_t count)
2819{
2820 struct Scsi_Host *shost = class_to_shost(cdev);
2821 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2822 int val = 0;
2823
2824 if (sscanf(buf, "%d", &val) != 1)
2825 return -EINVAL;
2826
2827 ioc->ring_buffer_offset = val;
2828 return strlen(buf);
2829}
2830static DEVICE_ATTR(host_trace_buffer, S_IRUGO | S_IWUSR,
2831 _ctl_host_trace_buffer_show, _ctl_host_trace_buffer_store);
2832
2833
2834/*****************************************/
2835
2836/**
2837 * _ctl_host_trace_buffer_enable_show - firmware ring buffer (trace only)
2838 * @cdev - pointer to embedded class device
2839 * @buf - the buffer returned
2840 *
2841 * A sysfs 'read/write' shost attribute.
2842 *
2843 * This is a mechnism to post/release host_trace_buffers
2844 */
2845static ssize_t
2846_ctl_host_trace_buffer_enable_show(struct device *cdev,
2847 struct device_attribute *attr, char *buf)
2848{
2849 struct Scsi_Host *shost = class_to_shost(cdev);
2850 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2851
2852 if ((!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) ||
2853 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2854 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0))
2855 return snprintf(buf, PAGE_SIZE, "off\n");
2856 else if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2857 MPT3_DIAG_BUFFER_IS_RELEASED))
2858 return snprintf(buf, PAGE_SIZE, "release\n");
2859 else
2860 return snprintf(buf, PAGE_SIZE, "post\n");
2861}
2862
2863static ssize_t
2864_ctl_host_trace_buffer_enable_store(struct device *cdev,
2865 struct device_attribute *attr, const char *buf, size_t count)
2866{
2867 struct Scsi_Host *shost = class_to_shost(cdev);
2868 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2869 char str[10] = "";
2870 struct mpt3_diag_register diag_register;
2871 u8 issue_reset = 0;
2872
2873 /* don't allow post/release occurr while recovery is active */
2874 if (ioc->shost_recovery || ioc->remove_host ||
2875 ioc->pci_error_recovery || ioc->is_driver_loading)
2876 return -EBUSY;
2877
2878 if (sscanf(buf, "%9s", str) != 1)
2879 return -EINVAL;
2880
2881 if (!strcmp(str, "post")) {
2882 /* exit out if host buffers are already posted */
2883 if ((ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) &&
2884 (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2885 MPT3_DIAG_BUFFER_IS_REGISTERED) &&
2886 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2887 MPT3_DIAG_BUFFER_IS_RELEASED) == 0))
2888 goto out;
2889 memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
2890 pr_info(MPT3SAS_FMT "posting host trace buffers\n",
2891 ioc->name);
2892 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
2893 diag_register.requested_buffer_size = (1024 * 1024);
2894 diag_register.unique_id = 0x7075900;
2895 ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] = 0;
2896 _ctl_diag_register_2(ioc, &diag_register);
2897 } else if (!strcmp(str, "release")) {
2898 /* exit out if host buffers are already released */
2899 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE])
2900 goto out;
2901 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2902 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0)
2903 goto out;
2904 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2905 MPT3_DIAG_BUFFER_IS_RELEASED))
2906 goto out;
2907 pr_info(MPT3SAS_FMT "releasing host trace buffer\n",
2908 ioc->name);
2909 mpt3sas_send_diag_release(ioc, MPI2_DIAG_BUF_TYPE_TRACE,
2910 &issue_reset);
2911 }
2912
2913 out:
2914 return strlen(buf);
2915}
2916static DEVICE_ATTR(host_trace_buffer_enable, S_IRUGO | S_IWUSR,
2917 _ctl_host_trace_buffer_enable_show,
2918 _ctl_host_trace_buffer_enable_store);
2919
2920/*********** diagnostic trigger suppport *********************************/
2921
2922/**
2923 * _ctl_diag_trigger_master_show - show the diag_trigger_master attribute
2924 * @cdev - pointer to embedded class device
2925 * @buf - the buffer returned
2926 *
2927 * A sysfs 'read/write' shost attribute.
2928 */
2929static ssize_t
2930_ctl_diag_trigger_master_show(struct device *cdev,
2931 struct device_attribute *attr, char *buf)
2932
2933{
2934 struct Scsi_Host *shost = class_to_shost(cdev);
2935 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2936 unsigned long flags;
2937 ssize_t rc;
2938
2939 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
2940 rc = sizeof(struct SL_WH_MASTER_TRIGGER_T);
2941 memcpy(buf, &ioc->diag_trigger_master, rc);
2942 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
2943 return rc;
2944}
2945
2946/**
2947 * _ctl_diag_trigger_master_store - store the diag_trigger_master attribute
2948 * @cdev - pointer to embedded class device
2949 * @buf - the buffer returned
2950 *
2951 * A sysfs 'read/write' shost attribute.
2952 */
2953static ssize_t
2954_ctl_diag_trigger_master_store(struct device *cdev,
2955 struct device_attribute *attr, const char *buf, size_t count)
2956
2957{
2958 struct Scsi_Host *shost = class_to_shost(cdev);
2959 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2960 unsigned long flags;
2961 ssize_t rc;
2962
2963 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
2964 rc = min(sizeof(struct SL_WH_MASTER_TRIGGER_T), count);
2965 memset(&ioc->diag_trigger_master, 0,
2966 sizeof(struct SL_WH_MASTER_TRIGGER_T));
2967 memcpy(&ioc->diag_trigger_master, buf, rc);
2968 ioc->diag_trigger_master.MasterData |=
2969 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
2970 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
2971 return rc;
2972}
2973static DEVICE_ATTR(diag_trigger_master, S_IRUGO | S_IWUSR,
2974 _ctl_diag_trigger_master_show, _ctl_diag_trigger_master_store);
2975
2976
2977/**
2978 * _ctl_diag_trigger_event_show - show the diag_trigger_event attribute
2979 * @cdev - pointer to embedded class device
2980 * @buf - the buffer returned
2981 *
2982 * A sysfs 'read/write' shost attribute.
2983 */
2984static ssize_t
2985_ctl_diag_trigger_event_show(struct device *cdev,
2986 struct device_attribute *attr, char *buf)
2987{
2988 struct Scsi_Host *shost = class_to_shost(cdev);
2989 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2990 unsigned long flags;
2991 ssize_t rc;
2992
2993 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
2994 rc = sizeof(struct SL_WH_EVENT_TRIGGERS_T);
2995 memcpy(buf, &ioc->diag_trigger_event, rc);
2996 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
2997 return rc;
2998}
2999
3000/**
3001 * _ctl_diag_trigger_event_store - store the diag_trigger_event attribute
3002 * @cdev - pointer to embedded class device
3003 * @buf - the buffer returned
3004 *
3005 * A sysfs 'read/write' shost attribute.
3006 */
3007static ssize_t
3008_ctl_diag_trigger_event_store(struct device *cdev,
3009 struct device_attribute *attr, const char *buf, size_t count)
3010
3011{
3012 struct Scsi_Host *shost = class_to_shost(cdev);
3013 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3014 unsigned long flags;
3015 ssize_t sz;
3016
3017 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3018 sz = min(sizeof(struct SL_WH_EVENT_TRIGGERS_T), count);
3019 memset(&ioc->diag_trigger_event, 0,
3020 sizeof(struct SL_WH_EVENT_TRIGGERS_T));
3021 memcpy(&ioc->diag_trigger_event, buf, sz);
3022 if (ioc->diag_trigger_event.ValidEntries > NUM_VALID_ENTRIES)
3023 ioc->diag_trigger_event.ValidEntries = NUM_VALID_ENTRIES;
3024 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3025 return sz;
3026}
3027static DEVICE_ATTR(diag_trigger_event, S_IRUGO | S_IWUSR,
3028 _ctl_diag_trigger_event_show, _ctl_diag_trigger_event_store);
3029
3030
3031/**
3032 * _ctl_diag_trigger_scsi_show - show the diag_trigger_scsi attribute
3033 * @cdev - pointer to embedded class device
3034 * @buf - the buffer returned
3035 *
3036 * A sysfs 'read/write' shost attribute.
3037 */
3038static ssize_t
3039_ctl_diag_trigger_scsi_show(struct device *cdev,
3040 struct device_attribute *attr, char *buf)
3041{
3042 struct Scsi_Host *shost = class_to_shost(cdev);
3043 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3044 unsigned long flags;
3045 ssize_t rc;
3046
3047 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3048 rc = sizeof(struct SL_WH_SCSI_TRIGGERS_T);
3049 memcpy(buf, &ioc->diag_trigger_scsi, rc);
3050 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3051 return rc;
3052}
3053
3054/**
3055 * _ctl_diag_trigger_scsi_store - store the diag_trigger_scsi attribute
3056 * @cdev - pointer to embedded class device
3057 * @buf - the buffer returned
3058 *
3059 * A sysfs 'read/write' shost attribute.
3060 */
3061static ssize_t
3062_ctl_diag_trigger_scsi_store(struct device *cdev,
3063 struct device_attribute *attr, const char *buf, size_t count)
3064{
3065 struct Scsi_Host *shost = class_to_shost(cdev);
3066 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3067 unsigned long flags;
3068 ssize_t sz;
3069
3070 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3071 sz = min(sizeof(struct SL_WH_SCSI_TRIGGERS_T), count);
3072 memset(&ioc->diag_trigger_scsi, 0,
3073 sizeof(struct SL_WH_EVENT_TRIGGERS_T));
3074 memcpy(&ioc->diag_trigger_scsi, buf, sz);
3075 if (ioc->diag_trigger_scsi.ValidEntries > NUM_VALID_ENTRIES)
3076 ioc->diag_trigger_scsi.ValidEntries = NUM_VALID_ENTRIES;
3077 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3078 return sz;
3079}
3080static DEVICE_ATTR(diag_trigger_scsi, S_IRUGO | S_IWUSR,
3081 _ctl_diag_trigger_scsi_show, _ctl_diag_trigger_scsi_store);
3082
3083
3084/**
3085 * _ctl_diag_trigger_scsi_show - show the diag_trigger_mpi attribute
3086 * @cdev - pointer to embedded class device
3087 * @buf - the buffer returned
3088 *
3089 * A sysfs 'read/write' shost attribute.
3090 */
3091static ssize_t
3092_ctl_diag_trigger_mpi_show(struct device *cdev,
3093 struct device_attribute *attr, char *buf)
3094{
3095 struct Scsi_Host *shost = class_to_shost(cdev);
3096 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3097 unsigned long flags;
3098 ssize_t rc;
3099
3100 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3101 rc = sizeof(struct SL_WH_MPI_TRIGGERS_T);
3102 memcpy(buf, &ioc->diag_trigger_mpi, rc);
3103 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3104 return rc;
3105}
3106
3107/**
3108 * _ctl_diag_trigger_mpi_store - store the diag_trigger_mpi attribute
3109 * @cdev - pointer to embedded class device
3110 * @buf - the buffer returned
3111 *
3112 * A sysfs 'read/write' shost attribute.
3113 */
3114static ssize_t
3115_ctl_diag_trigger_mpi_store(struct device *cdev,
3116 struct device_attribute *attr, const char *buf, size_t count)
3117{
3118 struct Scsi_Host *shost = class_to_shost(cdev);
3119 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3120 unsigned long flags;
3121 ssize_t sz;
3122
3123 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3124 sz = min(sizeof(struct SL_WH_MPI_TRIGGERS_T), count);
3125 memset(&ioc->diag_trigger_mpi, 0,
66331e8c 3126 sizeof(ioc->diag_trigger_mpi));
f92363d1
SR		 3127 memcpy(&ioc->diag_trigger_mpi, buf, sz);
3128 if (ioc->diag_trigger_mpi.ValidEntries > NUM_VALID_ENTRIES)
3129 ioc->diag_trigger_mpi.ValidEntries = NUM_VALID_ENTRIES;
3130 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3131 return sz;
3132}
3133
3134static DEVICE_ATTR(diag_trigger_mpi, S_IRUGO | S_IWUSR,
3135 _ctl_diag_trigger_mpi_show, _ctl_diag_trigger_mpi_store);
3136
3137/*********** diagnostic trigger suppport *** END ****************************/
3138
3139
3140
3141/*****************************************/
3142
3143struct device_attribute *mpt3sas_host_attrs[] = {
3144 &dev_attr_version_fw,
3145 &dev_attr_version_bios,
3146 &dev_attr_version_mpi,
3147 &dev_attr_version_product,
3148 &dev_attr_version_nvdata_persistent,
3149 &dev_attr_version_nvdata_default,
3150 &dev_attr_board_name,
3151 &dev_attr_board_assembly,
3152 &dev_attr_board_tracer,
3153 &dev_attr_io_delay,
3154 &dev_attr_device_delay,
3155 &dev_attr_logging_level,
3156 &dev_attr_fwfault_debug,
3157 &dev_attr_fw_queue_depth,
3158 &dev_attr_host_sas_address,
3159 &dev_attr_ioc_reset_count,
3160 &dev_attr_host_trace_buffer_size,
3161 &dev_attr_host_trace_buffer,
3162 &dev_attr_host_trace_buffer_enable,
3163 &dev_attr_reply_queue_count,
3164 &dev_attr_diag_trigger_master,
3165 &dev_attr_diag_trigger_event,
3166 &dev_attr_diag_trigger_scsi,
3167 &dev_attr_diag_trigger_mpi,
3168 NULL,
3169};
3170
3171/* device attributes */
3172
3173/**
3174 * _ctl_device_sas_address_show - sas address
3175 * @cdev - pointer to embedded class device
3176 * @buf - the buffer returned
3177 *
3178 * This is the sas address for the target
3179 *
3180 * A sysfs 'read-only' shost attribute.
3181 */
3182static ssize_t
3183_ctl_device_sas_address_show(struct device *dev, struct device_attribute *attr,
3184 char *buf)
3185{
3186 struct scsi_device *sdev = to_scsi_device(dev);
3187 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3188
3189 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
3190 (unsigned long long)sas_device_priv_data->sas_target->sas_address);
3191}
3192static DEVICE_ATTR(sas_address, S_IRUGO, _ctl_device_sas_address_show, NULL);
3193
3194/**
3195 * _ctl_device_handle_show - device handle
3196 * @cdev - pointer to embedded class device
3197 * @buf - the buffer returned
3198 *
3199 * This is the firmware assigned device handle
3200 *
3201 * A sysfs 'read-only' shost attribute.
3202 */
3203static ssize_t
3204_ctl_device_handle_show(struct device *dev, struct device_attribute *attr,
3205 char *buf)
3206{
3207 struct scsi_device *sdev = to_scsi_device(dev);
3208 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3209
3210 return snprintf(buf, PAGE_SIZE, "0x%04x\n",
3211 sas_device_priv_data->sas_target->handle);
3212}
3213static DEVICE_ATTR(sas_device_handle, S_IRUGO, _ctl_device_handle_show, NULL);
3214
3215struct device_attribute *mpt3sas_dev_attrs[] = {
3216 &dev_attr_sas_address,
3217 &dev_attr_sas_device_handle,
3218 NULL,
3219};
3220
f92363d1 3221/**
8a7e4c24 3222 * ctl_init - main entry point for ctl.
f92363d1
SR		 3223 *
3224 */
3225void
8a7e4c24 3226ctl_init(void)
f92363d1
SR		 3227{
3228 async_queue = NULL;
f92363d1
SR		 3229 init_waitqueue_head(&ctl_poll_wait);
3230}
3231
3232/**
8a7e4c24 3233 * ctl_exit - exit point for ctl
f92363d1
SR		 3234 *
3235 */
3236void
8a7e4c24 3237ctl_exit(void)
f92363d1
SR		 3238{
3239 struct MPT3SAS_ADAPTER *ioc;
3240 int i;
3241
3242 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
3243
3244 /* free memory associated to diag buffers */
3245 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
3246 if (!ioc->diag_buffer[i])
3247 continue;
3248 if (!(ioc->diag_buffer_status[i] &
3249 MPT3_DIAG_BUFFER_IS_REGISTERED))
3250 continue;
3251 if ((ioc->diag_buffer_status[i] &
3252 MPT3_DIAG_BUFFER_IS_RELEASED))
3253 continue;
3254 pci_free_consistent(ioc->pdev, ioc->diag_buffer_sz[i],
3255 ioc->diag_buffer[i], ioc->diag_buffer_dma[i]);
3256 ioc->diag_buffer[i] = NULL;
3257 ioc->diag_buffer_status[i] = 0;
3258 }
3259
3260 kfree(ioc->event_log);
3261 }
f92363d1 3262}
Linux kernel - Deliverables
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