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Merge tag 'v3.10.90' into update
[GitHub/mt8127/android_kernel_alcatel_ttab.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
6 * Copyright (C) 2012 LSI Corporation
7 * (mailto:DL-MPTFusionLinux@lsi.com)
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version 2
12 * of the License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * NO WARRANTY
20 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
21 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
22 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
23 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
24 * solely responsible for determining the appropriateness of using and
25 * distributing the Program and assumes all risks associated with its
26 * exercise of rights under this Agreement, including but not limited to
27 * the risks and costs of program errors, damage to or loss of data,
28 * programs or equipment, and unavailability or interruption of operations.
29
30 * DISCLAIMER OF LIABILITY
31 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
32 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
34 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
35 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
36 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
37 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
38
39 * You should have received a copy of the GNU General Public License
40 * along with this program; if not, write to the Free Software
41 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
42 * USA.
43 */
44
f92363d1
SR		 45#include <linux/kernel.h>
46#include <linux/module.h>
47#include <linux/errno.h>
48#include <linux/init.h>
49#include <linux/slab.h>
50#include <linux/types.h>
51#include <linux/pci.h>
52#include <linux/delay.h>
53#include <linux/compat.h>
54#include <linux/poll.h>
55
56#include <linux/io.h>
57#include <linux/uaccess.h>
58
59#include "mpt3sas_base.h"
60#include "mpt3sas_ctl.h"
61
62
63static struct fasync_struct *async_queue;
64static DECLARE_WAIT_QUEUE_HEAD(ctl_poll_wait);
65
66
67/**
68 * enum block_state - blocking state
69 * @NON_BLOCKING: non blocking
70 * @BLOCKING: blocking
71 *
72 * These states are for ioctls that need to wait for a response
73 * from firmware, so they probably require sleep.
74 */
75enum block_state {
76 NON_BLOCKING,
77 BLOCKING,
78};
79
80#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
81/**
82 * _ctl_sas_device_find_by_handle - sas device search
83 * @ioc: per adapter object
84 * @handle: sas device handle (assigned by firmware)
85 * Context: Calling function should acquire ioc->sas_device_lock
86 *
87 * This searches for sas_device based on sas_address, then return sas_device
88 * object.
89 */
90static struct _sas_device *
91_ctl_sas_device_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
92{
93 struct _sas_device *sas_device, *r;
94
95 r = NULL;
96 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
97 if (sas_device->handle != handle)
98 continue;
99 r = sas_device;
100 goto out;
101 }
102
103 out:
104 return r;
105}
106
107/**
108 * _ctl_display_some_debug - debug routine
109 * @ioc: per adapter object
110 * @smid: system request message index
111 * @calling_function_name: string pass from calling function
112 * @mpi_reply: reply message frame
113 * Context: none.
114 *
115 * Function for displaying debug info helpful when debugging issues
116 * in this module.
117 */
118static void
119_ctl_display_some_debug(struct MPT3SAS_ADAPTER *ioc, u16 smid,
120 char *calling_function_name, MPI2DefaultReply_t *mpi_reply)
121{
122 Mpi2ConfigRequest_t *mpi_request;
123 char *desc = NULL;
124
125 if (!(ioc->logging_level & MPT_DEBUG_IOCTL))
126 return;
127
128 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
129 switch (mpi_request->Function) {
130 case MPI2_FUNCTION_SCSI_IO_REQUEST:
131 {
132 Mpi2SCSIIORequest_t *scsi_request =
133 (Mpi2SCSIIORequest_t *)mpi_request;
134
135 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
136 "scsi_io, cmd(0x%02x), cdb_len(%d)",
137 scsi_request->CDB.CDB32[0],
138 le16_to_cpu(scsi_request->IoFlags) & 0xF);
139 desc = ioc->tmp_string;
140 break;
141 }
142 case MPI2_FUNCTION_SCSI_TASK_MGMT:
143 desc = "task_mgmt";
144 break;
145 case MPI2_FUNCTION_IOC_INIT:
146 desc = "ioc_init";
147 break;
148 case MPI2_FUNCTION_IOC_FACTS:
149 desc = "ioc_facts";
150 break;
151 case MPI2_FUNCTION_CONFIG:
152 {
153 Mpi2ConfigRequest_t *config_request =
154 (Mpi2ConfigRequest_t *)mpi_request;
155
156 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
157 "config, type(0x%02x), ext_type(0x%02x), number(%d)",
158 (config_request->Header.PageType &
159 MPI2_CONFIG_PAGETYPE_MASK), config_request->ExtPageType,
160 config_request->Header.PageNumber);
161 desc = ioc->tmp_string;
162 break;
163 }
164 case MPI2_FUNCTION_PORT_FACTS:
165 desc = "port_facts";
166 break;
167 case MPI2_FUNCTION_PORT_ENABLE:
168 desc = "port_enable";
169 break;
170 case MPI2_FUNCTION_EVENT_NOTIFICATION:
171 desc = "event_notification";
172 break;
173 case MPI2_FUNCTION_FW_DOWNLOAD:
174 desc = "fw_download";
175 break;
176 case MPI2_FUNCTION_FW_UPLOAD:
177 desc = "fw_upload";
178 break;
179 case MPI2_FUNCTION_RAID_ACTION:
180 desc = "raid_action";
181 break;
182 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
183 {
184 Mpi2SCSIIORequest_t *scsi_request =
185 (Mpi2SCSIIORequest_t *)mpi_request;
186
187 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
188 "raid_pass, cmd(0x%02x), cdb_len(%d)",
189 scsi_request->CDB.CDB32[0],
190 le16_to_cpu(scsi_request->IoFlags) & 0xF);
191 desc = ioc->tmp_string;
192 break;
193 }
194 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
195 desc = "sas_iounit_cntl";
196 break;
197 case MPI2_FUNCTION_SATA_PASSTHROUGH:
198 desc = "sata_pass";
199 break;
200 case MPI2_FUNCTION_DIAG_BUFFER_POST:
201 desc = "diag_buffer_post";
202 break;
203 case MPI2_FUNCTION_DIAG_RELEASE:
204 desc = "diag_release";
205 break;
206 case MPI2_FUNCTION_SMP_PASSTHROUGH:
207 desc = "smp_passthrough";
208 break;
209 }
210
211 if (!desc)
212 return;
213
214 pr_info(MPT3SAS_FMT "%s: %s, smid(%d)\n",
215 ioc->name, calling_function_name, desc, smid);
216
217 if (!mpi_reply)
218 return;
219
220 if (mpi_reply->IOCStatus || mpi_reply->IOCLogInfo)
221 pr_info(MPT3SAS_FMT
222 "\tiocstatus(0x%04x), loginfo(0x%08x)\n",
223 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
224 le32_to_cpu(mpi_reply->IOCLogInfo));
225
226 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
227 mpi_request->Function ==
228 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
229 Mpi2SCSIIOReply_t *scsi_reply =
230 (Mpi2SCSIIOReply_t *)mpi_reply;
231 struct _sas_device *sas_device = NULL;
232 unsigned long flags;
233
234 spin_lock_irqsave(&ioc->sas_device_lock, flags);
235 sas_device = _ctl_sas_device_find_by_handle(ioc,
236 le16_to_cpu(scsi_reply->DevHandle));
237 if (sas_device) {
238 pr_warn(MPT3SAS_FMT "\tsas_address(0x%016llx), phy(%d)\n",
239 ioc->name, (unsigned long long)
240 sas_device->sas_address, sas_device->phy);
241 pr_warn(MPT3SAS_FMT
242 "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
243 ioc->name, (unsigned long long)
244 sas_device->enclosure_logical_id, sas_device->slot);
245 }
246 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
247 if (scsi_reply->SCSIState || scsi_reply->SCSIStatus)
248 pr_info(MPT3SAS_FMT
249 "\tscsi_state(0x%02x), scsi_status"
250 "(0x%02x)\n", ioc->name,
251 scsi_reply->SCSIState,
252 scsi_reply->SCSIStatus);
253 }
254}
255
256#endif
257
258/**
259 * mpt3sas_ctl_done - ctl module completion routine
260 * @ioc: per adapter object
261 * @smid: system request message index
262 * @msix_index: MSIX table index supplied by the OS
263 * @reply: reply message frame(lower 32bit addr)
264 * Context: none.
265 *
266 * The callback handler when using ioc->ctl_cb_idx.
267 *
268 * Return 1 meaning mf should be freed from _base_interrupt
269 * 0 means the mf is freed from this function.
270 */
271u8
272mpt3sas_ctl_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
273 u32 reply)
274{
275 MPI2DefaultReply_t *mpi_reply;
276 Mpi2SCSIIOReply_t *scsiio_reply;
277 const void *sense_data;
278 u32 sz;
279
280 if (ioc->ctl_cmds.status == MPT3_CMD_NOT_USED)
281 return 1;
282 if (ioc->ctl_cmds.smid != smid)
283 return 1;
284 ioc->ctl_cmds.status |= MPT3_CMD_COMPLETE;
285 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
286 if (mpi_reply) {
287 memcpy(ioc->ctl_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
288 ioc->ctl_cmds.status |= MPT3_CMD_REPLY_VALID;
289 /* get sense data */
290 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
291 mpi_reply->Function ==
292 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
293 scsiio_reply = (Mpi2SCSIIOReply_t *)mpi_reply;
294 if (scsiio_reply->SCSIState &
295 MPI2_SCSI_STATE_AUTOSENSE_VALID) {
296 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
297 le32_to_cpu(scsiio_reply->SenseCount));
298 sense_data = mpt3sas_base_get_sense_buffer(ioc,
299 smid);
300 memcpy(ioc->ctl_cmds.sense, sense_data, sz);
301 }
302 }
303 }
304#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
305 _ctl_display_some_debug(ioc, smid, "ctl_done", mpi_reply);
306#endif
307 ioc->ctl_cmds.status &= ~MPT3_CMD_PENDING;
308 complete(&ioc->ctl_cmds.done);
309 return 1;
310}
311
312/**
313 * _ctl_check_event_type - determines when an event needs logging
314 * @ioc: per adapter object
315 * @event: firmware event
316 *
317 * The bitmask in ioc->event_type[] indicates which events should be
318 * be saved in the driver event_log. This bitmask is set by application.
319 *
320 * Returns 1 when event should be captured, or zero means no match.
321 */
322static int
323_ctl_check_event_type(struct MPT3SAS_ADAPTER *ioc, u16 event)
324{
325 u16 i;
326 u32 desired_event;
327
328 if (event >= 128 || !event || !ioc->event_log)
329 return 0;
330
331 desired_event = (1 << (event % 32));
332 if (!desired_event)
333 desired_event = 1;
334 i = event / 32;
335 return desired_event & ioc->event_type[i];
336}
337
338/**
339 * mpt3sas_ctl_add_to_event_log - add event
340 * @ioc: per adapter object
341 * @mpi_reply: reply message frame
342 *
343 * Return nothing.
344 */
345void
346mpt3sas_ctl_add_to_event_log(struct MPT3SAS_ADAPTER *ioc,
347 Mpi2EventNotificationReply_t *mpi_reply)
348{
349 struct MPT3_IOCTL_EVENTS *event_log;
350 u16 event;
351 int i;
352 u32 sz, event_data_sz;
353 u8 send_aen = 0;
354
355 if (!ioc->event_log)
356 return;
357
358 event = le16_to_cpu(mpi_reply->Event);
359
360 if (_ctl_check_event_type(ioc, event)) {
361
362 /* insert entry into circular event_log */
363 i = ioc->event_context % MPT3SAS_CTL_EVENT_LOG_SIZE;
364 event_log = ioc->event_log;
365 event_log[i].event = event;
366 event_log[i].context = ioc->event_context++;
367
368 event_data_sz = le16_to_cpu(mpi_reply->EventDataLength)*4;
369 sz = min_t(u32, event_data_sz, MPT3_EVENT_DATA_SIZE);
370 memset(event_log[i].data, 0, MPT3_EVENT_DATA_SIZE);
371 memcpy(event_log[i].data, mpi_reply->EventData, sz);
372 send_aen = 1;
373 }
374
375 /* This aen_event_read_flag flag is set until the
376 * application has read the event log.
377 * For MPI2_EVENT_LOG_ENTRY_ADDED, we always notify.
378 */
379 if (event == MPI2_EVENT_LOG_ENTRY_ADDED ||
380 (send_aen && !ioc->aen_event_read_flag)) {
381 ioc->aen_event_read_flag = 1;
382 wake_up_interruptible(&ctl_poll_wait);
383 if (async_queue)
384 kill_fasync(&async_queue, SIGIO, POLL_IN);
385 }
386}
387
388/**
389 * mpt3sas_ctl_event_callback - firmware event handler (called at ISR time)
390 * @ioc: per adapter object
391 * @msix_index: MSIX table index supplied by the OS
392 * @reply: reply message frame(lower 32bit addr)
393 * Context: interrupt.
394 *
395 * This function merely adds a new work task into ioc->firmware_event_thread.
396 * The tasks are worked from _firmware_event_work in user context.
397 *
398 * Return 1 meaning mf should be freed from _base_interrupt
399 * 0 means the mf is freed from this function.
400 */
401u8
402mpt3sas_ctl_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index,
403 u32 reply)
404{
405 Mpi2EventNotificationReply_t *mpi_reply;
406
407 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
408 mpt3sas_ctl_add_to_event_log(ioc, mpi_reply);
409 return 1;
410}
411
412/**
413 * _ctl_verify_adapter - validates ioc_number passed from application
414 * @ioc: per adapter object
415 * @iocpp: The ioc pointer is returned in this.
416 *
417 * Return (-1) means error, else ioc_number.
418 */
419static int
420_ctl_verify_adapter(int ioc_number, struct MPT3SAS_ADAPTER **iocpp)
421{
422 struct MPT3SAS_ADAPTER *ioc;
423
424 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
425 if (ioc->id != ioc_number)
426 continue;
427 *iocpp = ioc;
428 return ioc_number;
429 }
430 *iocpp = NULL;
431 return -1;
432}
433
434/**
435 * mpt3sas_ctl_reset_handler - reset callback handler (for ctl)
436 * @ioc: per adapter object
437 * @reset_phase: phase
438 *
439 * The handler for doing any required cleanup or initialization.
440 *
441 * The reset phase can be MPT3_IOC_PRE_RESET, MPT3_IOC_AFTER_RESET,
442 * MPT3_IOC_DONE_RESET
443 */
444void
445mpt3sas_ctl_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase)
446{
447 int i;
448 u8 issue_reset;
449
450 switch (reset_phase) {
451 case MPT3_IOC_PRE_RESET:
452 dtmprintk(ioc, pr_info(MPT3SAS_FMT
453 "%s: MPT3_IOC_PRE_RESET\n", ioc->name, __func__));
454 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
455 if (!(ioc->diag_buffer_status[i] &
456 MPT3_DIAG_BUFFER_IS_REGISTERED))
457 continue;
458 if ((ioc->diag_buffer_status[i] &
459 MPT3_DIAG_BUFFER_IS_RELEASED))
460 continue;
461 mpt3sas_send_diag_release(ioc, i, &issue_reset);
462 }
463 break;
464 case MPT3_IOC_AFTER_RESET:
465 dtmprintk(ioc, pr_info(MPT3SAS_FMT
466 "%s: MPT3_IOC_AFTER_RESET\n", ioc->name, __func__));
467 if (ioc->ctl_cmds.status & MPT3_CMD_PENDING) {
468 ioc->ctl_cmds.status |= MPT3_CMD_RESET;
469 mpt3sas_base_free_smid(ioc, ioc->ctl_cmds.smid);
470 complete(&ioc->ctl_cmds.done);
471 }
472 break;
473 case MPT3_IOC_DONE_RESET:
474 dtmprintk(ioc, pr_info(MPT3SAS_FMT
475 "%s: MPT3_IOC_DONE_RESET\n", ioc->name, __func__));
476
477 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
478 if (!(ioc->diag_buffer_status[i] &
479 MPT3_DIAG_BUFFER_IS_REGISTERED))
480 continue;
481 if ((ioc->diag_buffer_status[i] &
482 MPT3_DIAG_BUFFER_IS_RELEASED))
483 continue;
484 ioc->diag_buffer_status[i] |=
485 MPT3_DIAG_BUFFER_IS_DIAG_RESET;
486 }
487 break;
488 }
489}
490
491/**
492 * _ctl_fasync -
493 * @fd -
494 * @filep -
495 * @mode -
496 *
497 * Called when application request fasyn callback handler.
498 */
499static int
500_ctl_fasync(int fd, struct file *filep, int mode)
501{
502 return fasync_helper(fd, filep, mode, &async_queue);
503}
504
f92363d1
SR		 505/**
506 * _ctl_poll -
507 * @file -
508 * @wait -
509 *
510 */
511static unsigned int
512_ctl_poll(struct file *filep, poll_table *wait)
513{
514 struct MPT3SAS_ADAPTER *ioc;
515
516 poll_wait(filep, &ctl_poll_wait, wait);
517
518 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
519 if (ioc->aen_event_read_flag)
520 return POLLIN | POLLRDNORM;
521 }
522 return 0;
523}
524
525/**
526 * _ctl_set_task_mid - assign an active smid to tm request
527 * @ioc: per adapter object
528 * @karg - (struct mpt3_ioctl_command)
529 * @tm_request - pointer to mf from user space
530 *
531 * Returns 0 when an smid if found, else fail.
532 * during failure, the reply frame is filled.
533 */
534static int
535_ctl_set_task_mid(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command *karg,
536 Mpi2SCSITaskManagementRequest_t *tm_request)
537{
538 u8 found = 0;
539 u16 i;
540 u16 handle;
541 struct scsi_cmnd *scmd;
542 struct MPT3SAS_DEVICE *priv_data;
543 unsigned long flags;
544 Mpi2SCSITaskManagementReply_t *tm_reply;
545 u32 sz;
546 u32 lun;
547 char *desc = NULL;
548
549 if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
550 desc = "abort_task";
551 else if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK)
552 desc = "query_task";
553 else
554 return 0;
555
556 lun = scsilun_to_int((struct scsi_lun *)tm_request->LUN);
557
558 handle = le16_to_cpu(tm_request->DevHandle);
559 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
560 for (i = ioc->scsiio_depth; i && !found; i--) {
561 scmd = ioc->scsi_lookup[i - 1].scmd;
562 if (scmd == NULL || scmd->device == NULL ||
563 scmd->device->hostdata == NULL)
564 continue;
565 if (lun != scmd->device->lun)
566 continue;
567 priv_data = scmd->device->hostdata;
568 if (priv_data->sas_target == NULL)
569 continue;
570 if (priv_data->sas_target->handle != handle)
571 continue;
572 tm_request->TaskMID = cpu_to_le16(ioc->scsi_lookup[i - 1].smid);
573 found = 1;
574 }
575 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
576
577 if (!found) {
578 dctlprintk(ioc, pr_info(MPT3SAS_FMT
579 "%s: handle(0x%04x), lun(%d), no active mid!!\n",
580 ioc->name,
581 desc, le16_to_cpu(tm_request->DevHandle), lun));
582 tm_reply = ioc->ctl_cmds.reply;
583 tm_reply->DevHandle = tm_request->DevHandle;
584 tm_reply->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
585 tm_reply->TaskType = tm_request->TaskType;
586 tm_reply->MsgLength = sizeof(Mpi2SCSITaskManagementReply_t)/4;
587 tm_reply->VP_ID = tm_request->VP_ID;
588 tm_reply->VF_ID = tm_request->VF_ID;
589 sz = min_t(u32, karg->max_reply_bytes, ioc->reply_sz);
590 if (copy_to_user(karg->reply_frame_buf_ptr, ioc->ctl_cmds.reply,
591 sz))
592 pr_err("failure at %s:%d/%s()!\n", __FILE__,
593 __LINE__, __func__);
594 return 1;
595 }
596
597 dctlprintk(ioc, pr_info(MPT3SAS_FMT
598 "%s: handle(0x%04x), lun(%d), task_mid(%d)\n", ioc->name,
599 desc, le16_to_cpu(tm_request->DevHandle), lun,
600 le16_to_cpu(tm_request->TaskMID)));
601 return 0;
602}
603
604/**
605 * _ctl_do_mpt_command - main handler for MPT3COMMAND opcode
606 * @ioc: per adapter object
607 * @karg - (struct mpt3_ioctl_command)
608 * @mf - pointer to mf in user space
609 */
610static long
611_ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
612 void __user *mf)
613{
614 MPI2RequestHeader_t *mpi_request = NULL, *request;
615 MPI2DefaultReply_t *mpi_reply;
616 u32 ioc_state;
617 u16 ioc_status;
618 u16 smid;
619 unsigned long timeout, timeleft;
620 u8 issue_reset;
621 u32 sz;
622 void *psge;
623 void *data_out = NULL;
624 dma_addr_t data_out_dma = 0;
625 size_t data_out_sz = 0;
626 void *data_in = NULL;
627 dma_addr_t data_in_dma = 0;
628 size_t data_in_sz = 0;
629 long ret;
630 u16 wait_state_count;
631
632 issue_reset = 0;
633
634 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
635 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
636 ioc->name, __func__);
637 ret = -EAGAIN;
638 goto out;
639 }
640
641 wait_state_count = 0;
642 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
643 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
644 if (wait_state_count++ == 10) {
645 pr_err(MPT3SAS_FMT
646 "%s: failed due to ioc not operational\n",
647 ioc->name, __func__);
648 ret = -EFAULT;
649 goto out;
650 }
651 ssleep(1);
652 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
653 pr_info(MPT3SAS_FMT
654 "%s: waiting for operational state(count=%d)\n",
655 ioc->name,
656 __func__, wait_state_count);
657 }
658 if (wait_state_count)
659 pr_info(MPT3SAS_FMT "%s: ioc is operational\n",
660 ioc->name, __func__);
661
662 mpi_request = kzalloc(ioc->request_sz, GFP_KERNEL);
663 if (!mpi_request) {
664 pr_err(MPT3SAS_FMT
665 "%s: failed obtaining a memory for mpi_request\n",
666 ioc->name, __func__);
667 ret = -ENOMEM;
668 goto out;
669 }
670
671 /* Check for overflow and wraparound */
672 if (karg.data_sge_offset * 4 > ioc->request_sz ||
673 karg.data_sge_offset > (UINT_MAX / 4)) {
674 ret = -EINVAL;
675 goto out;
676 }
677
678 /* copy in request message frame from user */
679 if (copy_from_user(mpi_request, mf, karg.data_sge_offset*4)) {
680 pr_err("failure at %s:%d/%s()!\n", __FILE__, __LINE__,
681 __func__);
682 ret = -EFAULT;
683 goto out;
684 }
685
686 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
687 smid = mpt3sas_base_get_smid_hpr(ioc, ioc->ctl_cb_idx);
688 if (!smid) {
689 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
690 ioc->name, __func__);
691 ret = -EAGAIN;
692 goto out;
693 }
694 } else {
695
696 smid = mpt3sas_base_get_smid_scsiio(ioc, ioc->ctl_cb_idx, NULL);
697 if (!smid) {
698 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
699 ioc->name, __func__);
700 ret = -EAGAIN;
701 goto out;
702 }
703 }
704
705 ret = 0;
706 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
707 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
708 request = mpt3sas_base_get_msg_frame(ioc, smid);
709 memcpy(request, mpi_request, karg.data_sge_offset*4);
710 ioc->ctl_cmds.smid = smid;
711 data_out_sz = karg.data_out_size;
712 data_in_sz = karg.data_in_size;
713
714 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
715 mpi_request->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
716 if (!le16_to_cpu(mpi_request->FunctionDependent1) ||
717 le16_to_cpu(mpi_request->FunctionDependent1) >
718 ioc->facts.MaxDevHandle) {
719 ret = -EINVAL;
720 mpt3sas_base_free_smid(ioc, smid);
721 goto out;
722 }
723 }
724
725 /* obtain dma-able memory for data transfer */
726 if (data_out_sz) /* WRITE */ {
727 data_out = pci_alloc_consistent(ioc->pdev, data_out_sz,
728 &data_out_dma);
729 if (!data_out) {
730 pr_err("failure at %s:%d/%s()!\n", __FILE__,
731 __LINE__, __func__);
732 ret = -ENOMEM;
733 mpt3sas_base_free_smid(ioc, smid);
734 goto out;
735 }
736 if (copy_from_user(data_out, karg.data_out_buf_ptr,
737 data_out_sz)) {
738 pr_err("failure at %s:%d/%s()!\n", __FILE__,
739 __LINE__, __func__);
740 ret = -EFAULT;
741 mpt3sas_base_free_smid(ioc, smid);
742 goto out;
743 }
744 }
745
746 if (data_in_sz) /* READ */ {
747 data_in = pci_alloc_consistent(ioc->pdev, data_in_sz,
748 &data_in_dma);
749 if (!data_in) {
750 pr_err("failure at %s:%d/%s()!\n", __FILE__,
751 __LINE__, __func__);
752 ret = -ENOMEM;
753 mpt3sas_base_free_smid(ioc, smid);
754 goto out;
755 }
756 }
757
758 psge = (void *)request + (karg.data_sge_offset*4);
759
760 /* send command to firmware */
761#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
762 _ctl_display_some_debug(ioc, smid, "ctl_request", NULL);
763#endif
764
765 init_completion(&ioc->ctl_cmds.done);
766 switch (mpi_request->Function) {
767 case MPI2_FUNCTION_SCSI_IO_REQUEST:
768 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
769 {
770 Mpi2SCSIIORequest_t *scsiio_request =
771 (Mpi2SCSIIORequest_t *)request;
772 scsiio_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
773 scsiio_request->SenseBufferLowAddress =
774 mpt3sas_base_get_sense_buffer_dma(ioc, smid);
775 memset(ioc->ctl_cmds.sense, 0, SCSI_SENSE_BUFFERSIZE);
776 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
777 data_in_dma, data_in_sz);
778
779 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)
780 mpt3sas_base_put_smid_scsi_io(ioc, smid,
781 le16_to_cpu(mpi_request->FunctionDependent1));
782 else
783 mpt3sas_base_put_smid_default(ioc, smid);
784 break;
785 }
786 case MPI2_FUNCTION_SCSI_TASK_MGMT:
787 {
788 Mpi2SCSITaskManagementRequest_t *tm_request =
789 (Mpi2SCSITaskManagementRequest_t *)request;
790
791 dtmprintk(ioc, pr_info(MPT3SAS_FMT
792 "TASK_MGMT: handle(0x%04x), task_type(0x%02x)\n",
793 ioc->name,
794 le16_to_cpu(tm_request->DevHandle), tm_request->TaskType));
795
796 if (tm_request->TaskType ==
797 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK ||
798 tm_request->TaskType ==
799 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) {
800 if (_ctl_set_task_mid(ioc, &karg, tm_request)) {
801 mpt3sas_base_free_smid(ioc, smid);
802 goto out;
803 }
804 }
805
806 mpt3sas_scsih_set_tm_flag(ioc, le16_to_cpu(
807 tm_request->DevHandle));
808 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
809 data_in_dma, data_in_sz);
810 mpt3sas_base_put_smid_hi_priority(ioc, smid);
811 break;
812 }
813 case MPI2_FUNCTION_SMP_PASSTHROUGH:
814 {
815 Mpi2SmpPassthroughRequest_t *smp_request =
816 (Mpi2SmpPassthroughRequest_t *)mpi_request;
817 u8 *data;
818
819 /* ioc determines which port to use */
820 smp_request->PhysicalPort = 0xFF;
821 if (smp_request->PassthroughFlags &
822 MPI2_SMP_PT_REQ_PT_FLAGS_IMMEDIATE)
823 data = (u8 *)&smp_request->SGL;
824 else {
825 if (unlikely(data_out == NULL)) {
826 pr_err("failure at %s:%d/%s()!\n",
827 __FILE__, __LINE__, __func__);
828 mpt3sas_base_free_smid(ioc, smid);
829 ret = -EINVAL;
830 goto out;
831 }
832 data = data_out;
833 }
834
835 if (data[1] == 0x91 && (data[10] == 1 || data[10] == 2)) {
836 ioc->ioc_link_reset_in_progress = 1;
837 ioc->ignore_loginfos = 1;
838 }
839 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
840 data_in_sz);
841 mpt3sas_base_put_smid_default(ioc, smid);
842 break;
843 }
844 case MPI2_FUNCTION_SATA_PASSTHROUGH:
845 case MPI2_FUNCTION_FW_DOWNLOAD:
846 case MPI2_FUNCTION_FW_UPLOAD:
847 {
848 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
849 data_in_sz);
850 mpt3sas_base_put_smid_default(ioc, smid);
851 break;
852 }
853 case MPI2_FUNCTION_TOOLBOX:
854 {
855 Mpi2ToolboxCleanRequest_t *toolbox_request =
856 (Mpi2ToolboxCleanRequest_t *)mpi_request;
857
858 if (toolbox_request->Tool == MPI2_TOOLBOX_DIAGNOSTIC_CLI_TOOL) {
859 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
860 data_in_dma, data_in_sz);
861 } else {
862 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
863 data_in_dma, data_in_sz);
864 }
865 mpt3sas_base_put_smid_default(ioc, smid);
866 break;
867 }
868 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
869 {
870 Mpi2SasIoUnitControlRequest_t *sasiounit_request =
871 (Mpi2SasIoUnitControlRequest_t *)mpi_request;
872
873 if (sasiounit_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET
874 || sasiounit_request->Operation ==
875 MPI2_SAS_OP_PHY_LINK_RESET) {
876 ioc->ioc_link_reset_in_progress = 1;
877 ioc->ignore_loginfos = 1;
878 }
879 /* drop to default case for posting the request */
880 }
881 default:
882 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
883 data_in_dma, data_in_sz);
884 mpt3sas_base_put_smid_default(ioc, smid);
885 break;
886 }
887
888 if (karg.timeout < MPT3_IOCTL_DEFAULT_TIMEOUT)
889 timeout = MPT3_IOCTL_DEFAULT_TIMEOUT;
890 else
891 timeout = karg.timeout;
892 timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
893 timeout*HZ);
894 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
895 Mpi2SCSITaskManagementRequest_t *tm_request =
896 (Mpi2SCSITaskManagementRequest_t *)mpi_request;
897 mpt3sas_scsih_clear_tm_flag(ioc, le16_to_cpu(
898 tm_request->DevHandle));
899 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
900 } else if ((mpi_request->Function == MPI2_FUNCTION_SMP_PASSTHROUGH ||
901 mpi_request->Function == MPI2_FUNCTION_SAS_IO_UNIT_CONTROL) &&
902 ioc->ioc_link_reset_in_progress) {
903 ioc->ioc_link_reset_in_progress = 0;
904 ioc->ignore_loginfos = 0;
905 }
906 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
907 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
908 __func__);
909 _debug_dump_mf(mpi_request, karg.data_sge_offset);
910 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
911 issue_reset = 1;
912 goto issue_host_reset;
913 }
914
915 mpi_reply = ioc->ctl_cmds.reply;
916 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
917
918#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
919 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_TASK_MGMT &&
920 (ioc->logging_level & MPT_DEBUG_TM)) {
921 Mpi2SCSITaskManagementReply_t *tm_reply =
922 (Mpi2SCSITaskManagementReply_t *)mpi_reply;
923
924 pr_info(MPT3SAS_FMT "TASK_MGMT: " \
925 "IOCStatus(0x%04x), IOCLogInfo(0x%08x), "
926 "TerminationCount(0x%08x)\n", ioc->name,
927 le16_to_cpu(tm_reply->IOCStatus),
928 le32_to_cpu(tm_reply->IOCLogInfo),
929 le32_to_cpu(tm_reply->TerminationCount));
930 }
931#endif
932 /* copy out xdata to user */
933 if (data_in_sz) {
934 if (copy_to_user(karg.data_in_buf_ptr, data_in,
935 data_in_sz)) {
936 pr_err("failure at %s:%d/%s()!\n", __FILE__,
937 __LINE__, __func__);
938 ret = -ENODATA;
939 goto out;
940 }
941 }
942
943 /* copy out reply message frame to user */
944 if (karg.max_reply_bytes) {
945 sz = min_t(u32, karg.max_reply_bytes, ioc->reply_sz);
946 if (copy_to_user(karg.reply_frame_buf_ptr, ioc->ctl_cmds.reply,
947 sz)) {
948 pr_err("failure at %s:%d/%s()!\n", __FILE__,
949 __LINE__, __func__);
950 ret = -ENODATA;
951 goto out;
952 }
953 }
954
955 /* copy out sense to user */
956 if (karg.max_sense_bytes && (mpi_request->Function ==
957 MPI2_FUNCTION_SCSI_IO_REQUEST || mpi_request->Function ==
958 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) {
959 sz = min_t(u32, karg.max_sense_bytes, SCSI_SENSE_BUFFERSIZE);
960 if (copy_to_user(karg.sense_data_ptr, ioc->ctl_cmds.sense,
961 sz)) {
962 pr_err("failure at %s:%d/%s()!\n", __FILE__,
963 __LINE__, __func__);
964 ret = -ENODATA;
965 goto out;
966 }
967 }
968
969 issue_host_reset:
970 if (issue_reset) {
971 ret = -ENODATA;
972 if ((mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
973 mpi_request->Function ==
974 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
975 mpi_request->Function == MPI2_FUNCTION_SATA_PASSTHROUGH)) {
976 pr_info(MPT3SAS_FMT "issue target reset: handle = (0x%04x)\n",
977 ioc->name,
978 le16_to_cpu(mpi_request->FunctionDependent1));
979 mpt3sas_halt_firmware(ioc);
980 mpt3sas_scsih_issue_tm(ioc,
981 le16_to_cpu(mpi_request->FunctionDependent1), 0, 0,
982 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 30,
983 0, TM_MUTEX_ON);
984 } else
985 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
986 FORCE_BIG_HAMMER);
987 }
988
989 out:
990
991 /* free memory associated with sg buffers */
992 if (data_in)
993 pci_free_consistent(ioc->pdev, data_in_sz, data_in,
994 data_in_dma);
995
996 if (data_out)
997 pci_free_consistent(ioc->pdev, data_out_sz, data_out,
998 data_out_dma);
999
1000 kfree(mpi_request);
1001 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1002 return ret;
1003}
1004
1005/**
1006 * _ctl_getiocinfo - main handler for MPT3IOCINFO opcode
1007 * @ioc: per adapter object
1008 * @arg - user space buffer containing ioctl content
1009 */
1010static long
1011_ctl_getiocinfo(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1012{
1013 struct mpt3_ioctl_iocinfo karg;
1014
1015 if (copy_from_user(&karg, arg, sizeof(karg))) {
1016 pr_err("failure at %s:%d/%s()!\n",
1017 __FILE__, __LINE__, __func__);
1018 return -EFAULT;
1019 }
1020
1021 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1022 __func__));
1023
1024 memset(&karg, 0 , sizeof(karg));
1025 karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS3;
1026 if (ioc->pfacts)
1027 karg.port_number = ioc->pfacts[0].PortNumber;
1028 karg.hw_rev = ioc->pdev->revision;
1029 karg.pci_id = ioc->pdev->device;
1030 karg.subsystem_device = ioc->pdev->subsystem_device;
1031 karg.subsystem_vendor = ioc->pdev->subsystem_vendor;
1032 karg.pci_information.u.bits.bus = ioc->pdev->bus->number;
1033 karg.pci_information.u.bits.device = PCI_SLOT(ioc->pdev->devfn);
1034 karg.pci_information.u.bits.function = PCI_FUNC(ioc->pdev->devfn);
1035 karg.pci_information.segment_id = pci_domain_nr(ioc->pdev->bus);
1036 karg.firmware_version = ioc->facts.FWVersion.Word;
1037 strcpy(karg.driver_version, MPT3SAS_DRIVER_NAME);
1038 strcat(karg.driver_version, "-");
1039 strcat(karg.driver_version, MPT3SAS_DRIVER_VERSION);
1040 karg.bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
1041
1042 if (copy_to_user(arg, &karg, sizeof(karg))) {
1043 pr_err("failure at %s:%d/%s()!\n",
1044 __FILE__, __LINE__, __func__);
1045 return -EFAULT;
1046 }
1047 return 0;
1048}
1049
1050/**
1051 * _ctl_eventquery - main handler for MPT3EVENTQUERY opcode
1052 * @ioc: per adapter object
1053 * @arg - user space buffer containing ioctl content
1054 */
1055static long
1056_ctl_eventquery(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1057{
1058 struct mpt3_ioctl_eventquery karg;
1059
1060 if (copy_from_user(&karg, arg, sizeof(karg))) {
1061 pr_err("failure at %s:%d/%s()!\n",
1062 __FILE__, __LINE__, __func__);
1063 return -EFAULT;
1064 }
1065
1066 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1067 __func__));
1068
1069 karg.event_entries = MPT3SAS_CTL_EVENT_LOG_SIZE;
1070 memcpy(karg.event_types, ioc->event_type,
1071 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1072
1073 if (copy_to_user(arg, &karg, sizeof(karg))) {
1074 pr_err("failure at %s:%d/%s()!\n",
1075 __FILE__, __LINE__, __func__);
1076 return -EFAULT;
1077 }
1078 return 0;
1079}
1080
1081/**
1082 * _ctl_eventenable - main handler for MPT3EVENTENABLE opcode
1083 * @ioc: per adapter object
1084 * @arg - user space buffer containing ioctl content
1085 */
1086static long
1087_ctl_eventenable(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1088{
1089 struct mpt3_ioctl_eventenable karg;
1090
1091 if (copy_from_user(&karg, arg, sizeof(karg))) {
1092 pr_err("failure at %s:%d/%s()!\n",
1093 __FILE__, __LINE__, __func__);
1094 return -EFAULT;
1095 }
1096
1097 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1098 __func__));
1099
1100 memcpy(ioc->event_type, karg.event_types,
1101 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1102 mpt3sas_base_validate_event_type(ioc, ioc->event_type);
1103
1104 if (ioc->event_log)
1105 return 0;
1106 /* initialize event_log */
1107 ioc->event_context = 0;
1108 ioc->aen_event_read_flag = 0;
1109 ioc->event_log = kcalloc(MPT3SAS_CTL_EVENT_LOG_SIZE,
1110 sizeof(struct MPT3_IOCTL_EVENTS), GFP_KERNEL);
1111 if (!ioc->event_log) {
1112 pr_err("failure at %s:%d/%s()!\n",
1113 __FILE__, __LINE__, __func__);
1114 return -ENOMEM;
1115 }
1116 return 0;
1117}
1118
1119/**
1120 * _ctl_eventreport - main handler for MPT3EVENTREPORT opcode
1121 * @ioc: per adapter object
1122 * @arg - user space buffer containing ioctl content
1123 */
1124static long
1125_ctl_eventreport(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1126{
1127 struct mpt3_ioctl_eventreport karg;
1128 u32 number_bytes, max_events, max;
1129 struct mpt3_ioctl_eventreport __user *uarg = arg;
1130
1131 if (copy_from_user(&karg, arg, sizeof(karg))) {
1132 pr_err("failure at %s:%d/%s()!\n",
1133 __FILE__, __LINE__, __func__);
1134 return -EFAULT;
1135 }
1136
1137 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1138 __func__));
1139
1140 number_bytes = karg.hdr.max_data_size -
1141 sizeof(struct mpt3_ioctl_header);
1142 max_events = number_bytes/sizeof(struct MPT3_IOCTL_EVENTS);
1143 max = min_t(u32, MPT3SAS_CTL_EVENT_LOG_SIZE, max_events);
1144
1145 /* If fewer than 1 event is requested, there must have
1146 * been some type of error.
1147 */
1148 if (!max || !ioc->event_log)
1149 return -ENODATA;
1150
1151 number_bytes = max * sizeof(struct MPT3_IOCTL_EVENTS);
1152 if (copy_to_user(uarg->event_data, ioc->event_log, number_bytes)) {
1153 pr_err("failure at %s:%d/%s()!\n",
1154 __FILE__, __LINE__, __func__);
1155 return -EFAULT;
1156 }
1157
1158 /* reset flag so SIGIO can restart */
1159 ioc->aen_event_read_flag = 0;
1160 return 0;
1161}
1162
1163/**
1164 * _ctl_do_reset - main handler for MPT3HARDRESET opcode
1165 * @ioc: per adapter object
1166 * @arg - user space buffer containing ioctl content
1167 */
1168static long
1169_ctl_do_reset(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1170{
1171 struct mpt3_ioctl_diag_reset karg;
1172 int retval;
1173
1174 if (copy_from_user(&karg, arg, sizeof(karg))) {
1175 pr_err("failure at %s:%d/%s()!\n",
1176 __FILE__, __LINE__, __func__);
1177 return -EFAULT;
1178 }
1179
1180 if (ioc->shost_recovery || ioc->pci_error_recovery ||
1181 ioc->is_driver_loading)
1182 return -EAGAIN;
1183
1184 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1185 __func__));
1186
1187 retval = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1188 FORCE_BIG_HAMMER);
1189 pr_info(MPT3SAS_FMT "host reset: %s\n",
1190 ioc->name, ((!retval) ? "SUCCESS" : "FAILED"));
1191 return 0;
1192}
1193
1194/**
1195 * _ctl_btdh_search_sas_device - searching for sas device
1196 * @ioc: per adapter object
1197 * @btdh: btdh ioctl payload
1198 */
1199static int
1200_ctl_btdh_search_sas_device(struct MPT3SAS_ADAPTER *ioc,
1201 struct mpt3_ioctl_btdh_mapping *btdh)
1202{
1203 struct _sas_device *sas_device;
1204 unsigned long flags;
1205 int rc = 0;
1206
1207 if (list_empty(&ioc->sas_device_list))
1208 return rc;
1209
1210 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1211 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
1212 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1213 btdh->handle == sas_device->handle) {
1214 btdh->bus = sas_device->channel;
1215 btdh->id = sas_device->id;
1216 rc = 1;
1217 goto out;
1218 } else if (btdh->bus == sas_device->channel && btdh->id ==
1219 sas_device->id && btdh->handle == 0xFFFF) {
1220 btdh->handle = sas_device->handle;
1221 rc = 1;
1222 goto out;
1223 }
1224 }
1225 out:
1226 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1227 return rc;
1228}
1229
1230/**
1231 * _ctl_btdh_search_raid_device - searching for raid device
1232 * @ioc: per adapter object
1233 * @btdh: btdh ioctl payload
1234 */
1235static int
1236_ctl_btdh_search_raid_device(struct MPT3SAS_ADAPTER *ioc,
1237 struct mpt3_ioctl_btdh_mapping *btdh)
1238{
1239 struct _raid_device *raid_device;
1240 unsigned long flags;
1241 int rc = 0;
1242
1243 if (list_empty(&ioc->raid_device_list))
1244 return rc;
1245
1246 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1247 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
1248 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1249 btdh->handle == raid_device->handle) {
1250 btdh->bus = raid_device->channel;
1251 btdh->id = raid_device->id;
1252 rc = 1;
1253 goto out;
1254 } else if (btdh->bus == raid_device->channel && btdh->id ==
1255 raid_device->id && btdh->handle == 0xFFFF) {
1256 btdh->handle = raid_device->handle;
1257 rc = 1;
1258 goto out;
1259 }
1260 }
1261 out:
1262 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1263 return rc;
1264}
1265
1266/**
1267 * _ctl_btdh_mapping - main handler for MPT3BTDHMAPPING opcode
1268 * @ioc: per adapter object
1269 * @arg - user space buffer containing ioctl content
1270 */
1271static long
1272_ctl_btdh_mapping(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1273{
1274 struct mpt3_ioctl_btdh_mapping karg;
1275 int rc;
1276
1277 if (copy_from_user(&karg, arg, sizeof(karg))) {
1278 pr_err("failure at %s:%d/%s()!\n",
1279 __FILE__, __LINE__, __func__);
1280 return -EFAULT;
1281 }
1282
1283 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1284 __func__));
1285
1286 rc = _ctl_btdh_search_sas_device(ioc, &karg);
1287 if (!rc)
1288 _ctl_btdh_search_raid_device(ioc, &karg);
1289
1290 if (copy_to_user(arg, &karg, sizeof(karg))) {
1291 pr_err("failure at %s:%d/%s()!\n",
1292 __FILE__, __LINE__, __func__);
1293 return -EFAULT;
1294 }
1295 return 0;
1296}
1297
1298/**
1299 * _ctl_diag_capability - return diag buffer capability
1300 * @ioc: per adapter object
1301 * @buffer_type: specifies either TRACE, SNAPSHOT, or EXTENDED
1302 *
1303 * returns 1 when diag buffer support is enabled in firmware
1304 */
1305static u8
1306_ctl_diag_capability(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type)
1307{
1308 u8 rc = 0;
1309
1310 switch (buffer_type) {
1311 case MPI2_DIAG_BUF_TYPE_TRACE:
1312 if (ioc->facts.IOCCapabilities &
1313 MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER)
1314 rc = 1;
1315 break;
1316 case MPI2_DIAG_BUF_TYPE_SNAPSHOT:
1317 if (ioc->facts.IOCCapabilities &
1318 MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER)
1319 rc = 1;
1320 break;
1321 case MPI2_DIAG_BUF_TYPE_EXTENDED:
1322 if (ioc->facts.IOCCapabilities &
1323 MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER)
1324 rc = 1;
1325 }
1326
1327 return rc;
1328}
1329
1330
1331/**
1332 * _ctl_diag_register_2 - wrapper for registering diag buffer support
1333 * @ioc: per adapter object
1334 * @diag_register: the diag_register struct passed in from user space
1335 *
1336 */
1337static long
1338_ctl_diag_register_2(struct MPT3SAS_ADAPTER *ioc,
1339 struct mpt3_diag_register *diag_register)
1340{
1341 int rc, i;
1342 void *request_data = NULL;
1343 dma_addr_t request_data_dma;
1344 u32 request_data_sz = 0;
1345 Mpi2DiagBufferPostRequest_t *mpi_request;
1346 Mpi2DiagBufferPostReply_t *mpi_reply;
1347 u8 buffer_type;
1348 unsigned long timeleft;
1349 u16 smid;
1350 u16 ioc_status;
1351 u32 ioc_state;
1352 u8 issue_reset = 0;
1353
1354 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1355 __func__));
1356
1357 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1358 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1359 pr_err(MPT3SAS_FMT
1360 "%s: failed due to ioc not operational\n",
1361 ioc->name, __func__);
1362 rc = -EAGAIN;
1363 goto out;
1364 }
1365
1366 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
1367 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
1368 ioc->name, __func__);
1369 rc = -EAGAIN;
1370 goto out;
1371 }
1372
1373 buffer_type = diag_register->buffer_type;
1374 if (!_ctl_diag_capability(ioc, buffer_type)) {
1375 pr_err(MPT3SAS_FMT
1376 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1377 ioc->name, __func__, buffer_type);
1378 return -EPERM;
1379 }
1380
1381 if (ioc->diag_buffer_status[buffer_type] &
1382 MPT3_DIAG_BUFFER_IS_REGISTERED) {
1383 pr_err(MPT3SAS_FMT
1384 "%s: already has a registered buffer for buffer_type(0x%02x)\n",
1385 ioc->name, __func__,
1386 buffer_type);
1387 return -EINVAL;
1388 }
1389
1390 if (diag_register->requested_buffer_size % 4) {
1391 pr_err(MPT3SAS_FMT
1392 "%s: the requested_buffer_size is not 4 byte aligned\n",
1393 ioc->name, __func__);
1394 return -EINVAL;
1395 }
1396
1397 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1398 if (!smid) {
1399 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
1400 ioc->name, __func__);
1401 rc = -EAGAIN;
1402 goto out;
1403 }
1404
1405 rc = 0;
1406 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
1407 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1408 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1409 ioc->ctl_cmds.smid = smid;
1410
1411 request_data = ioc->diag_buffer[buffer_type];
1412 request_data_sz = diag_register->requested_buffer_size;
1413 ioc->unique_id[buffer_type] = diag_register->unique_id;
1414 ioc->diag_buffer_status[buffer_type] = 0;
1415 memcpy(ioc->product_specific[buffer_type],
1416 diag_register->product_specific, MPT3_PRODUCT_SPECIFIC_DWORDS);
1417 ioc->diagnostic_flags[buffer_type] = diag_register->diagnostic_flags;
1418
1419 if (request_data) {
1420 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1421 if (request_data_sz != ioc->diag_buffer_sz[buffer_type]) {
1422 pci_free_consistent(ioc->pdev,
1423 ioc->diag_buffer_sz[buffer_type],
1424 request_data, request_data_dma);
1425 request_data = NULL;
1426 }
1427 }
1428
1429 if (request_data == NULL) {
1430 ioc->diag_buffer_sz[buffer_type] = 0;
1431 ioc->diag_buffer_dma[buffer_type] = 0;
1432 request_data = pci_alloc_consistent(
1433 ioc->pdev, request_data_sz, &request_data_dma);
1434 if (request_data == NULL) {
1435 pr_err(MPT3SAS_FMT "%s: failed allocating memory" \
1436 " for diag buffers, requested size(%d)\n",
1437 ioc->name, __func__, request_data_sz);
1438 mpt3sas_base_free_smid(ioc, smid);
1439 return -ENOMEM;
1440 }
1441 ioc->diag_buffer[buffer_type] = request_data;
1442 ioc->diag_buffer_sz[buffer_type] = request_data_sz;
1443 ioc->diag_buffer_dma[buffer_type] = request_data_dma;
1444 }
1445
1446 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
1447 mpi_request->BufferType = diag_register->buffer_type;
1448 mpi_request->Flags = cpu_to_le32(diag_register->diagnostic_flags);
1449 mpi_request->BufferAddress = cpu_to_le64(request_data_dma);
1450 mpi_request->BufferLength = cpu_to_le32(request_data_sz);
1451 mpi_request->VF_ID = 0; /* TODO */
1452 mpi_request->VP_ID = 0;
1453
1454 dctlprintk(ioc, pr_info(MPT3SAS_FMT
1455 "%s: diag_buffer(0x%p), dma(0x%llx), sz(%d)\n",
1456 ioc->name, __func__, request_data,
1457 (unsigned long long)request_data_dma,
1458 le32_to_cpu(mpi_request->BufferLength)));
1459
1460 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
1461 mpi_request->ProductSpecific[i] =
1462 cpu_to_le32(ioc->product_specific[buffer_type][i]);
1463
1464 init_completion(&ioc->ctl_cmds.done);
1465 mpt3sas_base_put_smid_default(ioc, smid);
1466 timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
1467 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
1468
1469 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1470 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
1471 __func__);
1472 _debug_dump_mf(mpi_request,
1473 sizeof(Mpi2DiagBufferPostRequest_t)/4);
1474 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
1475 issue_reset = 1;
1476 goto issue_host_reset;
1477 }
1478
1479 /* process the completed Reply Message Frame */
1480 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
1481 pr_err(MPT3SAS_FMT "%s: no reply message\n",
1482 ioc->name, __func__);
1483 rc = -EFAULT;
1484 goto out;
1485 }
1486
1487 mpi_reply = ioc->ctl_cmds.reply;
1488 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1489
1490 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1491 ioc->diag_buffer_status[buffer_type] |=
1492 MPT3_DIAG_BUFFER_IS_REGISTERED;
1493 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
1494 ioc->name, __func__));
1495 } else {
1496 pr_info(MPT3SAS_FMT
1497 "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
1498 ioc->name, __func__,
1499 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
1500 rc = -EFAULT;
1501 }
1502
1503 issue_host_reset:
1504 if (issue_reset)
1505 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1506 FORCE_BIG_HAMMER);
1507
1508 out:
1509
1510 if (rc && request_data)
1511 pci_free_consistent(ioc->pdev, request_data_sz,
1512 request_data, request_data_dma);
1513
1514 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1515 return rc;
1516}
1517
1518/**
1519 * mpt3sas_enable_diag_buffer - enabling diag_buffers support driver load time
1520 * @ioc: per adapter object
1521 * @bits_to_register: bitwise field where trace is bit 0, and snapshot is bit 1
1522 *
1523 * This is called when command line option diag_buffer_enable is enabled
1524 * at driver load time.
1525 */
1526void
1527mpt3sas_enable_diag_buffer(struct MPT3SAS_ADAPTER *ioc, u8 bits_to_register)
1528{
1529 struct mpt3_diag_register diag_register;
1530
1531 memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
1532
1533 if (bits_to_register & 1) {
1534 pr_info(MPT3SAS_FMT "registering trace buffer support\n",
1535 ioc->name);
1536 ioc->diag_trigger_master.MasterData =
1537 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
1538 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
1539 /* register for 2MB buffers */
1540 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1541 diag_register.unique_id = 0x7075900;
1542 _ctl_diag_register_2(ioc, &diag_register);
1543 }
1544
1545 if (bits_to_register & 2) {
1546 pr_info(MPT3SAS_FMT "registering snapshot buffer support\n",
1547 ioc->name);
1548 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_SNAPSHOT;
1549 /* register for 2MB buffers */
1550 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1551 diag_register.unique_id = 0x7075901;
1552 _ctl_diag_register_2(ioc, &diag_register);
1553 }
1554
1555 if (bits_to_register & 4) {
1556 pr_info(MPT3SAS_FMT "registering extended buffer support\n",
1557 ioc->name);
1558 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_EXTENDED;
1559 /* register for 2MB buffers */
1560 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1561 diag_register.unique_id = 0x7075901;
1562 _ctl_diag_register_2(ioc, &diag_register);
1563 }
1564}
1565
1566/**
1567 * _ctl_diag_register - application register with driver
1568 * @ioc: per adapter object
1569 * @arg - user space buffer containing ioctl content
1570 *
1571 * This will allow the driver to setup any required buffers that will be
1572 * needed by firmware to communicate with the driver.
1573 */
1574static long
1575_ctl_diag_register(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1576{
1577 struct mpt3_diag_register karg;
1578 long rc;
1579
1580 if (copy_from_user(&karg, arg, sizeof(karg))) {
1581 pr_err("failure at %s:%d/%s()!\n",
1582 __FILE__, __LINE__, __func__);
1583 return -EFAULT;
1584 }
1585
1586 rc = _ctl_diag_register_2(ioc, &karg);
1587 return rc;
1588}
1589
1590/**
1591 * _ctl_diag_unregister - application unregister with driver
1592 * @ioc: per adapter object
1593 * @arg - user space buffer containing ioctl content
1594 *
1595 * This will allow the driver to cleanup any memory allocated for diag
1596 * messages and to free up any resources.
1597 */
1598static long
1599_ctl_diag_unregister(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1600{
1601 struct mpt3_diag_unregister karg;
1602 void *request_data;
1603 dma_addr_t request_data_dma;
1604 u32 request_data_sz;
1605 u8 buffer_type;
1606
1607 if (copy_from_user(&karg, arg, sizeof(karg))) {
1608 pr_err("failure at %s:%d/%s()!\n",
1609 __FILE__, __LINE__, __func__);
1610 return -EFAULT;
1611 }
1612
1613 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1614 __func__));
1615
1616 buffer_type = karg.unique_id & 0x000000ff;
1617 if (!_ctl_diag_capability(ioc, buffer_type)) {
1618 pr_err(MPT3SAS_FMT
1619 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1620 ioc->name, __func__, buffer_type);
1621 return -EPERM;
1622 }
1623
1624 if ((ioc->diag_buffer_status[buffer_type] &
1625 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1626 pr_err(MPT3SAS_FMT
1627 "%s: buffer_type(0x%02x) is not registered\n",
1628 ioc->name, __func__, buffer_type);
1629 return -EINVAL;
1630 }
1631 if ((ioc->diag_buffer_status[buffer_type] &
1632 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
1633 pr_err(MPT3SAS_FMT
1634 "%s: buffer_type(0x%02x) has not been released\n",
1635 ioc->name, __func__, buffer_type);
1636 return -EINVAL;
1637 }
1638
1639 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1640 pr_err(MPT3SAS_FMT
1641 "%s: unique_id(0x%08x) is not registered\n",
1642 ioc->name, __func__, karg.unique_id);
1643 return -EINVAL;
1644 }
1645
1646 request_data = ioc->diag_buffer[buffer_type];
1647 if (!request_data) {
1648 pr_err(MPT3SAS_FMT
1649 "%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
1650 ioc->name, __func__, buffer_type);
1651 return -ENOMEM;
1652 }
1653
1654 request_data_sz = ioc->diag_buffer_sz[buffer_type];
1655 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1656 pci_free_consistent(ioc->pdev, request_data_sz,
1657 request_data, request_data_dma);
1658 ioc->diag_buffer[buffer_type] = NULL;
1659 ioc->diag_buffer_status[buffer_type] = 0;
1660 return 0;
1661}
1662
1663/**
1664 * _ctl_diag_query - query relevant info associated with diag buffers
1665 * @ioc: per adapter object
1666 * @arg - user space buffer containing ioctl content
1667 *
1668 * The application will send only buffer_type and unique_id. Driver will
1669 * inspect unique_id first, if valid, fill in all the info. If unique_id is
1670 * 0x00, the driver will return info specified by Buffer Type.
1671 */
1672static long
1673_ctl_diag_query(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1674{
1675 struct mpt3_diag_query karg;
1676 void *request_data;
1677 int i;
1678 u8 buffer_type;
1679
1680 if (copy_from_user(&karg, arg, sizeof(karg))) {
1681 pr_err("failure at %s:%d/%s()!\n",
1682 __FILE__, __LINE__, __func__);
1683 return -EFAULT;
1684 }
1685
1686 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1687 __func__));
1688
1689 karg.application_flags = 0;
1690 buffer_type = karg.buffer_type;
1691
1692 if (!_ctl_diag_capability(ioc, buffer_type)) {
1693 pr_err(MPT3SAS_FMT
1694 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1695 ioc->name, __func__, buffer_type);
1696 return -EPERM;
1697 }
1698
1699 if ((ioc->diag_buffer_status[buffer_type] &
1700 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1701 pr_err(MPT3SAS_FMT
1702 "%s: buffer_type(0x%02x) is not registered\n",
1703 ioc->name, __func__, buffer_type);
1704 return -EINVAL;
1705 }
1706
1707 if (karg.unique_id & 0xffffff00) {
1708 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1709 pr_err(MPT3SAS_FMT
1710 "%s: unique_id(0x%08x) is not registered\n",
1711 ioc->name, __func__, karg.unique_id);
1712 return -EINVAL;
1713 }
1714 }
1715
1716 request_data = ioc->diag_buffer[buffer_type];
1717 if (!request_data) {
1718 pr_err(MPT3SAS_FMT
1719 "%s: doesn't have buffer for buffer_type(0x%02x)\n",
1720 ioc->name, __func__, buffer_type);
1721 return -ENOMEM;
1722 }
1723
1724 if (ioc->diag_buffer_status[buffer_type] & MPT3_DIAG_BUFFER_IS_RELEASED)
1725 karg.application_flags = (MPT3_APP_FLAGS_APP_OWNED |
1726 MPT3_APP_FLAGS_BUFFER_VALID);
1727 else
1728 karg.application_flags = (MPT3_APP_FLAGS_APP_OWNED |
1729 MPT3_APP_FLAGS_BUFFER_VALID |
1730 MPT3_APP_FLAGS_FW_BUFFER_ACCESS);
1731
1732 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
1733 karg.product_specific[i] =
1734 ioc->product_specific[buffer_type][i];
1735
1736 karg.total_buffer_size = ioc->diag_buffer_sz[buffer_type];
1737 karg.driver_added_buffer_size = 0;
1738 karg.unique_id = ioc->unique_id[buffer_type];
1739 karg.diagnostic_flags = ioc->diagnostic_flags[buffer_type];
1740
1741 if (copy_to_user(arg, &karg, sizeof(struct mpt3_diag_query))) {
1742 pr_err(MPT3SAS_FMT
1743 "%s: unable to write mpt3_diag_query data @ %p\n",
1744 ioc->name, __func__, arg);
1745 return -EFAULT;
1746 }
1747 return 0;
1748}
1749
1750/**
1751 * mpt3sas_send_diag_release - Diag Release Message
1752 * @ioc: per adapter object
1753 * @buffer_type - specifies either TRACE, SNAPSHOT, or EXTENDED
1754 * @issue_reset - specifies whether host reset is required.
1755 *
1756 */
1757int
1758mpt3sas_send_diag_release(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type,
1759 u8 *issue_reset)
1760{
1761 Mpi2DiagReleaseRequest_t *mpi_request;
1762 Mpi2DiagReleaseReply_t *mpi_reply;
1763 u16 smid;
1764 u16 ioc_status;
1765 u32 ioc_state;
1766 int rc;
1767 unsigned long timeleft;
1768
1769 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1770 __func__));
1771
1772 rc = 0;
1773 *issue_reset = 0;
1774
1775 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1776 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1777 if (ioc->diag_buffer_status[buffer_type] &
1778 MPT3_DIAG_BUFFER_IS_REGISTERED)
1779 ioc->diag_buffer_status[buffer_type] |=
1780 MPT3_DIAG_BUFFER_IS_RELEASED;
1781 dctlprintk(ioc, pr_info(MPT3SAS_FMT
1782 "%s: skipping due to FAULT state\n", ioc->name,
1783 __func__));
1784 rc = -EAGAIN;
1785 goto out;
1786 }
1787
1788 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
1789 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
1790 ioc->name, __func__);
1791 rc = -EAGAIN;
1792 goto out;
1793 }
1794
1795 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1796 if (!smid) {
1797 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
1798 ioc->name, __func__);
1799 rc = -EAGAIN;
1800 goto out;
1801 }
1802
1803 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
1804 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1805 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1806 ioc->ctl_cmds.smid = smid;
1807
1808 mpi_request->Function = MPI2_FUNCTION_DIAG_RELEASE;
1809 mpi_request->BufferType = buffer_type;
1810 mpi_request->VF_ID = 0; /* TODO */
1811 mpi_request->VP_ID = 0;
1812
1813 init_completion(&ioc->ctl_cmds.done);
1814 mpt3sas_base_put_smid_default(ioc, smid);
1815 timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
1816 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
1817
1818 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1819 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
1820 __func__);
1821 _debug_dump_mf(mpi_request,
1822 sizeof(Mpi2DiagReleaseRequest_t)/4);
1823 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
1824 *issue_reset = 1;
1825 rc = -EFAULT;
1826 goto out;
1827 }
1828
1829 /* process the completed Reply Message Frame */
1830 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
1831 pr_err(MPT3SAS_FMT "%s: no reply message\n",
1832 ioc->name, __func__);
1833 rc = -EFAULT;
1834 goto out;
1835 }
1836
1837 mpi_reply = ioc->ctl_cmds.reply;
1838 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1839
1840 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1841 ioc->diag_buffer_status[buffer_type] |=
1842 MPT3_DIAG_BUFFER_IS_RELEASED;
1843 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
1844 ioc->name, __func__));
1845 } else {
1846 pr_info(MPT3SAS_FMT
1847 "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
1848 ioc->name, __func__,
1849 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
1850 rc = -EFAULT;
1851 }
1852
1853 out:
1854 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1855 return rc;
1856}
1857
1858/**
1859 * _ctl_diag_release - request to send Diag Release Message to firmware
1860 * @arg - user space buffer containing ioctl content
1861 *
1862 * This allows ownership of the specified buffer to returned to the driver,
1863 * allowing an application to read the buffer without fear that firmware is
1864 * overwritting information in the buffer.
1865 */
1866static long
1867_ctl_diag_release(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1868{
1869 struct mpt3_diag_release karg;
1870 void *request_data;
1871 int rc;
1872 u8 buffer_type;
1873 u8 issue_reset = 0;
1874
1875 if (copy_from_user(&karg, arg, sizeof(karg))) {
1876 pr_err("failure at %s:%d/%s()!\n",
1877 __FILE__, __LINE__, __func__);
1878 return -EFAULT;
1879 }
1880
1881 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1882 __func__));
1883
1884 buffer_type = karg.unique_id & 0x000000ff;
1885 if (!_ctl_diag_capability(ioc, buffer_type)) {
1886 pr_err(MPT3SAS_FMT
1887 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1888 ioc->name, __func__, buffer_type);
1889 return -EPERM;
1890 }
1891
1892 if ((ioc->diag_buffer_status[buffer_type] &
1893 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1894 pr_err(MPT3SAS_FMT
1895 "%s: buffer_type(0x%02x) is not registered\n",
1896 ioc->name, __func__, buffer_type);
1897 return -EINVAL;
1898 }
1899
1900 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1901 pr_err(MPT3SAS_FMT
1902 "%s: unique_id(0x%08x) is not registered\n",
1903 ioc->name, __func__, karg.unique_id);
1904 return -EINVAL;
1905 }
1906
1907 if (ioc->diag_buffer_status[buffer_type] &
1908 MPT3_DIAG_BUFFER_IS_RELEASED) {
1909 pr_err(MPT3SAS_FMT
1910 "%s: buffer_type(0x%02x) is already released\n",
1911 ioc->name, __func__,
1912 buffer_type);
1913 return 0;
1914 }
1915
1916 request_data = ioc->diag_buffer[buffer_type];
1917
1918 if (!request_data) {
1919 pr_err(MPT3SAS_FMT
1920 "%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
1921 ioc->name, __func__, buffer_type);
1922 return -ENOMEM;
1923 }
1924
1925 /* buffers were released by due to host reset */
1926 if ((ioc->diag_buffer_status[buffer_type] &
1927 MPT3_DIAG_BUFFER_IS_DIAG_RESET)) {
1928 ioc->diag_buffer_status[buffer_type] |=
1929 MPT3_DIAG_BUFFER_IS_RELEASED;
1930 ioc->diag_buffer_status[buffer_type] &=
1931 ~MPT3_DIAG_BUFFER_IS_DIAG_RESET;
1932 pr_err(MPT3SAS_FMT
1933 "%s: buffer_type(0x%02x) was released due to host reset\n",
1934 ioc->name, __func__, buffer_type);
1935 return 0;
1936 }
1937
1938 rc = mpt3sas_send_diag_release(ioc, buffer_type, &issue_reset);
1939
1940 if (issue_reset)
1941 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1942 FORCE_BIG_HAMMER);
1943
1944 return rc;
1945}
1946
1947/**
1948 * _ctl_diag_read_buffer - request for copy of the diag buffer
1949 * @ioc: per adapter object
1950 * @arg - user space buffer containing ioctl content
1951 */
1952static long
1953_ctl_diag_read_buffer(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1954{
1955 struct mpt3_diag_read_buffer karg;
1956 struct mpt3_diag_read_buffer __user *uarg = arg;
1957 void *request_data, *diag_data;
1958 Mpi2DiagBufferPostRequest_t *mpi_request;
1959 Mpi2DiagBufferPostReply_t *mpi_reply;
1960 int rc, i;
1961 u8 buffer_type;
1962 unsigned long timeleft, request_size, copy_size;
1963 u16 smid;
1964 u16 ioc_status;
1965 u8 issue_reset = 0;
1966
1967 if (copy_from_user(&karg, arg, sizeof(karg))) {
1968 pr_err("failure at %s:%d/%s()!\n",
1969 __FILE__, __LINE__, __func__);
1970 return -EFAULT;
1971 }
1972
1973 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1974 __func__));
1975
1976 buffer_type = karg.unique_id & 0x000000ff;
1977 if (!_ctl_diag_capability(ioc, buffer_type)) {
1978 pr_err(MPT3SAS_FMT
1979 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1980 ioc->name, __func__, buffer_type);
1981 return -EPERM;
1982 }
1983
1984 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1985 pr_err(MPT3SAS_FMT
1986 "%s: unique_id(0x%08x) is not registered\n",
1987 ioc->name, __func__, karg.unique_id);
1988 return -EINVAL;
1989 }
1990
1991 request_data = ioc->diag_buffer[buffer_type];
1992 if (!request_data) {
1993 pr_err(MPT3SAS_FMT
1994 "%s: doesn't have buffer for buffer_type(0x%02x)\n",
1995 ioc->name, __func__, buffer_type);
1996 return -ENOMEM;
1997 }
1998
1999 request_size = ioc->diag_buffer_sz[buffer_type];
2000
2001 if ((karg.starting_offset % 4) || (karg.bytes_to_read % 4)) {
2002 pr_err(MPT3SAS_FMT "%s: either the starting_offset " \
2003 "or bytes_to_read are not 4 byte aligned\n", ioc->name,
2004 __func__);
2005 return -EINVAL;
2006 }
2007
2008 if (karg.starting_offset > request_size)
2009 return -EINVAL;
2010
2011 diag_data = (void *)(request_data + karg.starting_offset);
2012 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2013 "%s: diag_buffer(%p), offset(%d), sz(%d)\n",
2014 ioc->name, __func__,
2015 diag_data, karg.starting_offset, karg.bytes_to_read));
2016
2017 /* Truncate data on requests that are too large */
2018 if ((diag_data + karg.bytes_to_read < diag_data) ||
2019 (diag_data + karg.bytes_to_read > request_data + request_size))
2020 copy_size = request_size - karg.starting_offset;
2021 else
2022 copy_size = karg.bytes_to_read;
2023
2024 if (copy_to_user((void __user *)uarg->diagnostic_data,
2025 diag_data, copy_size)) {
2026 pr_err(MPT3SAS_FMT
2027 "%s: Unable to write mpt_diag_read_buffer_t data @ %p\n",
2028 ioc->name, __func__, diag_data);
2029 return -EFAULT;
2030 }
2031
2032 if ((karg.flags & MPT3_FLAGS_REREGISTER) == 0)
2033 return 0;
2034
2035 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2036 "%s: Reregister buffer_type(0x%02x)\n",
2037 ioc->name, __func__, buffer_type));
2038 if ((ioc->diag_buffer_status[buffer_type] &
2039 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
2040 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2041 "%s: buffer_type(0x%02x) is still registered\n",
2042 ioc->name, __func__, buffer_type));
2043 return 0;
2044 }
2045 /* Get a free request frame and save the message context.
2046 */
2047
2048 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
2049 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
2050 ioc->name, __func__);
2051 rc = -EAGAIN;
2052 goto out;
2053 }
2054
2055 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
2056 if (!smid) {
2057 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
2058 ioc->name, __func__);
2059 rc = -EAGAIN;
2060 goto out;
2061 }
2062
2063 rc = 0;
2064 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
2065 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
2066 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
2067 ioc->ctl_cmds.smid = smid;
2068
2069 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
2070 mpi_request->BufferType = buffer_type;
2071 mpi_request->BufferLength =
2072 cpu_to_le32(ioc->diag_buffer_sz[buffer_type]);
2073 mpi_request->BufferAddress =
2074 cpu_to_le64(ioc->diag_buffer_dma[buffer_type]);
2075 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
2076 mpi_request->ProductSpecific[i] =
2077 cpu_to_le32(ioc->product_specific[buffer_type][i]);
2078 mpi_request->VF_ID = 0; /* TODO */
2079 mpi_request->VP_ID = 0;
2080
2081 init_completion(&ioc->ctl_cmds.done);
2082 mpt3sas_base_put_smid_default(ioc, smid);
2083 timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
2084 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
2085
2086 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
2087 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
2088 __func__);
2089 _debug_dump_mf(mpi_request,
2090 sizeof(Mpi2DiagBufferPostRequest_t)/4);
2091 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
2092 issue_reset = 1;
2093 goto issue_host_reset;
2094 }
2095
2096 /* process the completed Reply Message Frame */
2097 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
2098 pr_err(MPT3SAS_FMT "%s: no reply message\n",
2099 ioc->name, __func__);
2100 rc = -EFAULT;
2101 goto out;
2102 }
2103
2104 mpi_reply = ioc->ctl_cmds.reply;
2105 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
2106
2107 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
2108 ioc->diag_buffer_status[buffer_type] |=
2109 MPT3_DIAG_BUFFER_IS_REGISTERED;
2110 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
2111 ioc->name, __func__));
2112 } else {
2113 pr_info(MPT3SAS_FMT
2114 "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
2115 ioc->name, __func__,
2116 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
2117 rc = -EFAULT;
2118 }
2119
2120 issue_host_reset:
2121 if (issue_reset)
2122 mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2123 FORCE_BIG_HAMMER);
2124
2125 out:
2126
2127 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
2128 return rc;
2129}
2130
2131
2132
2133#ifdef CONFIG_COMPAT
2134/**
2135 * _ctl_compat_mpt_command - convert 32bit pointers to 64bit.
2136 * @ioc: per adapter object
2137 * @cmd - ioctl opcode
2138 * @arg - (struct mpt3_ioctl_command32)
2139 *
2140 * MPT3COMMAND32 - Handle 32bit applications running on 64bit os.
2141 */
2142static long
2143_ctl_compat_mpt_command(struct MPT3SAS_ADAPTER *ioc, unsigned cmd,
2144 void __user *arg)
2145{
2146 struct mpt3_ioctl_command32 karg32;
2147 struct mpt3_ioctl_command32 __user *uarg;
2148 struct mpt3_ioctl_command karg;
2149
2150 if (_IOC_SIZE(cmd) != sizeof(struct mpt3_ioctl_command32))
2151 return -EINVAL;
2152
2153 uarg = (struct mpt3_ioctl_command32 __user *) arg;
2154
2155 if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32))) {
2156 pr_err("failure at %s:%d/%s()!\n",
2157 __FILE__, __LINE__, __func__);
2158 return -EFAULT;
2159 }
2160
2161 memset(&karg, 0, sizeof(struct mpt3_ioctl_command));
2162 karg.hdr.ioc_number = karg32.hdr.ioc_number;
2163 karg.hdr.port_number = karg32.hdr.port_number;
2164 karg.hdr.max_data_size = karg32.hdr.max_data_size;
2165 karg.timeout = karg32.timeout;
2166 karg.max_reply_bytes = karg32.max_reply_bytes;
2167 karg.data_in_size = karg32.data_in_size;
2168 karg.data_out_size = karg32.data_out_size;
2169 karg.max_sense_bytes = karg32.max_sense_bytes;
2170 karg.data_sge_offset = karg32.data_sge_offset;
2171 karg.reply_frame_buf_ptr = compat_ptr(karg32.reply_frame_buf_ptr);
2172 karg.data_in_buf_ptr = compat_ptr(karg32.data_in_buf_ptr);
2173 karg.data_out_buf_ptr = compat_ptr(karg32.data_out_buf_ptr);
2174 karg.sense_data_ptr = compat_ptr(karg32.sense_data_ptr);
2175 return _ctl_do_mpt_command(ioc, karg, &uarg->mf);
2176}
2177#endif
2178
2179/**
2180 * _ctl_ioctl_main - main ioctl entry point
2181 * @file - (struct file)
2182 * @cmd - ioctl opcode
2183 * @arg -
2184 * compat - handles 32 bit applications in 64bit os
2185 */
2186static long
2187_ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg,
2188 u8 compat)
2189{
2190 struct MPT3SAS_ADAPTER *ioc;
2191 struct mpt3_ioctl_header ioctl_header;
2192 enum block_state state;
2193 long ret = -EINVAL;
2194
2195 /* get IOCTL header */
2196 if (copy_from_user(&ioctl_header, (char __user *)arg,
2197 sizeof(struct mpt3_ioctl_header))) {
2198 pr_err("failure at %s:%d/%s()!\n",
2199 __FILE__, __LINE__, __func__);
2200 return -EFAULT;
2201 }
2202
2203 if (_ctl_verify_adapter(ioctl_header.ioc_number, &ioc) == -1 || !ioc)
2204 return -ENODEV;
2205
2206 if (ioc->shost_recovery || ioc->pci_error_recovery ||
2207 ioc->is_driver_loading)
2208 return -EAGAIN;
2209
2210 state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING;
2211 if (state == NON_BLOCKING) {
2212 if (!mutex_trylock(&ioc->ctl_cmds.mutex))
2213 return -EAGAIN;
2214 } else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex))
2215 return -ERESTARTSYS;
2216
2217
2218 switch (cmd) {
2219 case MPT3IOCINFO:
2220 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_iocinfo))
2221 ret = _ctl_getiocinfo(ioc, arg);
2222 break;
2223#ifdef CONFIG_COMPAT
2224 case MPT3COMMAND32:
2225#endif
2226 case MPT3COMMAND:
2227 {
2228 struct mpt3_ioctl_command __user *uarg;
2229 struct mpt3_ioctl_command karg;
2230
2231#ifdef CONFIG_COMPAT
2232 if (compat) {
2233 ret = _ctl_compat_mpt_command(ioc, cmd, arg);
2234 break;
2235 }
2236#endif
2237 if (copy_from_user(&karg, arg, sizeof(karg))) {
2238 pr_err("failure at %s:%d/%s()!\n",
2239 __FILE__, __LINE__, __func__);
2240 ret = -EFAULT;
2241 break;
2242 }
2243
2244 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_command)) {
2245 uarg = arg;
2246 ret = _ctl_do_mpt_command(ioc, karg, &uarg->mf);
2247 }
2248 break;
2249 }
2250 case MPT3EVENTQUERY:
2251 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventquery))
2252 ret = _ctl_eventquery(ioc, arg);
2253 break;
2254 case MPT3EVENTENABLE:
2255 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventenable))
2256 ret = _ctl_eventenable(ioc, arg);
2257 break;
2258 case MPT3EVENTREPORT:
2259 ret = _ctl_eventreport(ioc, arg);
2260 break;
2261 case MPT3HARDRESET:
2262 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_diag_reset))
2263 ret = _ctl_do_reset(ioc, arg);
2264 break;
2265 case MPT3BTDHMAPPING:
2266 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_btdh_mapping))
2267 ret = _ctl_btdh_mapping(ioc, arg);
2268 break;
2269 case MPT3DIAGREGISTER:
2270 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_register))
2271 ret = _ctl_diag_register(ioc, arg);
2272 break;
2273 case MPT3DIAGUNREGISTER:
2274 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_unregister))
2275 ret = _ctl_diag_unregister(ioc, arg);
2276 break;
2277 case MPT3DIAGQUERY:
2278 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_query))
2279 ret = _ctl_diag_query(ioc, arg);
2280 break;
2281 case MPT3DIAGRELEASE:
2282 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_release))
2283 ret = _ctl_diag_release(ioc, arg);
2284 break;
2285 case MPT3DIAGREADBUFFER:
2286 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_read_buffer))
2287 ret = _ctl_diag_read_buffer(ioc, arg);
2288 break;
2289 default:
2290 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2291 "unsupported ioctl opcode(0x%08x)\n", ioc->name, cmd));
2292 break;
2293 }
2294
2295 mutex_unlock(&ioc->ctl_cmds.mutex);
2296 return ret;
2297}
2298
2299/**
2300 * _ctl_ioctl - main ioctl entry point (unlocked)
2301 * @file - (struct file)
2302 * @cmd - ioctl opcode
2303 * @arg -
2304 */
2305static long
2306_ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2307{
2308 long ret;
2309
2310 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0);
2311 return ret;
2312}
2313
2314#ifdef CONFIG_COMPAT
2315/**
2316 * _ctl_ioctl_compat - main ioctl entry point (compat)
2317 * @file -
2318 * @cmd -
2319 * @arg -
2320 *
2321 * This routine handles 32 bit applications in 64bit os.
2322 */
2323static long
2324_ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
2325{
2326 long ret;
2327
2328 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1);
2329 return ret;
2330}
2331#endif
2332
2333/* scsi host attributes */
2334/**
2335 * _ctl_version_fw_show - firmware version
2336 * @cdev - pointer to embedded class device
2337 * @buf - the buffer returned
2338 *
2339 * A sysfs 'read-only' shost attribute.
2340 */
2341static ssize_t
2342_ctl_version_fw_show(struct device *cdev, struct device_attribute *attr,
2343 char *buf)
2344{
2345 struct Scsi_Host *shost = class_to_shost(cdev);
2346 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2347
2348 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2349 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
2350 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
2351 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
2352 ioc->facts.FWVersion.Word & 0x000000FF);
2353}
2354static DEVICE_ATTR(version_fw, S_IRUGO, _ctl_version_fw_show, NULL);
2355
2356/**
2357 * _ctl_version_bios_show - bios version
2358 * @cdev - pointer to embedded class device
2359 * @buf - the buffer returned
2360 *
2361 * A sysfs 'read-only' shost attribute.
2362 */
2363static ssize_t
2364_ctl_version_bios_show(struct device *cdev, struct device_attribute *attr,
2365 char *buf)
2366{
2367 struct Scsi_Host *shost = class_to_shost(cdev);
2368 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2369
2370 u32 version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
2371
2372 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2373 (version & 0xFF000000) >> 24,
2374 (version & 0x00FF0000) >> 16,
2375 (version & 0x0000FF00) >> 8,
2376 version & 0x000000FF);
2377}
2378static DEVICE_ATTR(version_bios, S_IRUGO, _ctl_version_bios_show, NULL);
2379
2380/**
2381 * _ctl_version_mpi_show - MPI (message passing interface) version
2382 * @cdev - pointer to embedded class device
2383 * @buf - the buffer returned
2384 *
2385 * A sysfs 'read-only' shost attribute.
2386 */
2387static ssize_t
2388_ctl_version_mpi_show(struct device *cdev, struct device_attribute *attr,
2389 char *buf)
2390{
2391 struct Scsi_Host *shost = class_to_shost(cdev);
2392 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2393
2394 return snprintf(buf, PAGE_SIZE, "%03x.%02x\n",
2395 ioc->facts.MsgVersion, ioc->facts.HeaderVersion >> 8);
2396}
2397static DEVICE_ATTR(version_mpi, S_IRUGO, _ctl_version_mpi_show, NULL);
2398
2399/**
2400 * _ctl_version_product_show - product name
2401 * @cdev - pointer to embedded class device
2402 * @buf - the buffer returned
2403 *
2404 * A sysfs 'read-only' shost attribute.
2405 */
2406static ssize_t
2407_ctl_version_product_show(struct device *cdev, struct device_attribute *attr,
2408 char *buf)
2409{
2410 struct Scsi_Host *shost = class_to_shost(cdev);
2411 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2412
2413 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.ChipName);
2414}
2415static DEVICE_ATTR(version_product, S_IRUGO, _ctl_version_product_show, NULL);
2416
2417/**
2418 * _ctl_version_nvdata_persistent_show - ndvata persistent version
2419 * @cdev - pointer to embedded class device
2420 * @buf - the buffer returned
2421 *
2422 * A sysfs 'read-only' shost attribute.
2423 */
2424static ssize_t
2425_ctl_version_nvdata_persistent_show(struct device *cdev,
2426 struct device_attribute *attr, char *buf)
2427{
2428 struct Scsi_Host *shost = class_to_shost(cdev);
2429 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2430
2431 return snprintf(buf, PAGE_SIZE, "%08xh\n",
2432 le32_to_cpu(ioc->iounit_pg0.NvdataVersionPersistent.Word));
2433}
2434static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
2435 _ctl_version_nvdata_persistent_show, NULL);
2436
2437/**
2438 * _ctl_version_nvdata_default_show - nvdata default version
2439 * @cdev - pointer to embedded class device
2440 * @buf - the buffer returned
2441 *
2442 * A sysfs 'read-only' shost attribute.
2443 */
2444static ssize_t
2445_ctl_version_nvdata_default_show(struct device *cdev, struct device_attribute
2446 *attr, char *buf)
2447{
2448 struct Scsi_Host *shost = class_to_shost(cdev);
2449 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2450
2451 return snprintf(buf, PAGE_SIZE, "%08xh\n",
2452 le32_to_cpu(ioc->iounit_pg0.NvdataVersionDefault.Word));
2453}
2454static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
2455 _ctl_version_nvdata_default_show, NULL);
2456
2457/**
2458 * _ctl_board_name_show - board name
2459 * @cdev - pointer to embedded class device
2460 * @buf - the buffer returned
2461 *
2462 * A sysfs 'read-only' shost attribute.
2463 */
2464static ssize_t
2465_ctl_board_name_show(struct device *cdev, struct device_attribute *attr,
2466 char *buf)
2467{
2468 struct Scsi_Host *shost = class_to_shost(cdev);
2469 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2470
2471 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardName);
2472}
2473static DEVICE_ATTR(board_name, S_IRUGO, _ctl_board_name_show, NULL);
2474
2475/**
2476 * _ctl_board_assembly_show - board assembly name
2477 * @cdev - pointer to embedded class device
2478 * @buf - the buffer returned
2479 *
2480 * A sysfs 'read-only' shost attribute.
2481 */
2482static ssize_t
2483_ctl_board_assembly_show(struct device *cdev, struct device_attribute *attr,
2484 char *buf)
2485{
2486 struct Scsi_Host *shost = class_to_shost(cdev);
2487 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2488
2489 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardAssembly);
2490}
2491static DEVICE_ATTR(board_assembly, S_IRUGO, _ctl_board_assembly_show, NULL);
2492
2493/**
2494 * _ctl_board_tracer_show - board tracer number
2495 * @cdev - pointer to embedded class device
2496 * @buf - the buffer returned
2497 *
2498 * A sysfs 'read-only' shost attribute.
2499 */
2500static ssize_t
2501_ctl_board_tracer_show(struct device *cdev, struct device_attribute *attr,
2502 char *buf)
2503{
2504 struct Scsi_Host *shost = class_to_shost(cdev);
2505 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2506
2507 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardTracerNumber);
2508}
2509static DEVICE_ATTR(board_tracer, S_IRUGO, _ctl_board_tracer_show, NULL);
2510
2511/**
2512 * _ctl_io_delay_show - io missing delay
2513 * @cdev - pointer to embedded class device
2514 * @buf - the buffer returned
2515 *
2516 * This is for firmware implemention for deboucing device
2517 * removal events.
2518 *
2519 * A sysfs 'read-only' shost attribute.
2520 */
2521static ssize_t
2522_ctl_io_delay_show(struct device *cdev, struct device_attribute *attr,
2523 char *buf)
2524{
2525 struct Scsi_Host *shost = class_to_shost(cdev);
2526 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2527
2528 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
2529}
2530static DEVICE_ATTR(io_delay, S_IRUGO, _ctl_io_delay_show, NULL);
2531
2532/**
2533 * _ctl_device_delay_show - device missing delay
2534 * @cdev - pointer to embedded class device
2535 * @buf - the buffer returned
2536 *
2537 * This is for firmware implemention for deboucing device
2538 * removal events.
2539 *
2540 * A sysfs 'read-only' shost attribute.
2541 */
2542static ssize_t
2543_ctl_device_delay_show(struct device *cdev, struct device_attribute *attr,
2544 char *buf)
2545{
2546 struct Scsi_Host *shost = class_to_shost(cdev);
2547 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2548
2549 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
2550}
2551static DEVICE_ATTR(device_delay, S_IRUGO, _ctl_device_delay_show, NULL);
2552
2553/**
2554 * _ctl_fw_queue_depth_show - global credits
2555 * @cdev - pointer to embedded class device
2556 * @buf - the buffer returned
2557 *
2558 * This is firmware queue depth limit
2559 *
2560 * A sysfs 'read-only' shost attribute.
2561 */
2562static ssize_t
2563_ctl_fw_queue_depth_show(struct device *cdev, struct device_attribute *attr,
2564 char *buf)
2565{
2566 struct Scsi_Host *shost = class_to_shost(cdev);
2567 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2568
2569 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->facts.RequestCredit);
2570}
2571static DEVICE_ATTR(fw_queue_depth, S_IRUGO, _ctl_fw_queue_depth_show, NULL);
2572
2573/**
2574 * _ctl_sas_address_show - sas address
2575 * @cdev - pointer to embedded class device
2576 * @buf - the buffer returned
2577 *
2578 * This is the controller sas address
2579 *
2580 * A sysfs 'read-only' shost attribute.
2581 */
2582static ssize_t
2583_ctl_host_sas_address_show(struct device *cdev, struct device_attribute *attr,
2584 char *buf)
2585
2586{
2587 struct Scsi_Host *shost = class_to_shost(cdev);
2588 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2589
2590 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
2591 (unsigned long long)ioc->sas_hba.sas_address);
2592}
2593static DEVICE_ATTR(host_sas_address, S_IRUGO,
2594 _ctl_host_sas_address_show, NULL);
2595
2596/**
2597 * _ctl_logging_level_show - logging level
2598 * @cdev - pointer to embedded class device
2599 * @buf - the buffer returned
2600 *
2601 * A sysfs 'read/write' shost attribute.
2602 */
2603static ssize_t
2604_ctl_logging_level_show(struct device *cdev, struct device_attribute *attr,
2605 char *buf)
2606{
2607 struct Scsi_Host *shost = class_to_shost(cdev);
2608 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2609
2610 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->logging_level);
2611}
2612static ssize_t
2613_ctl_logging_level_store(struct device *cdev, struct device_attribute *attr,
2614 const char *buf, size_t count)
2615{
2616 struct Scsi_Host *shost = class_to_shost(cdev);
2617 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2618 int val = 0;
2619
2620 if (sscanf(buf, "%x", &val) != 1)
2621 return -EINVAL;
2622
2623 ioc->logging_level = val;
2624 pr_info(MPT3SAS_FMT "logging_level=%08xh\n", ioc->name,
2625 ioc->logging_level);
2626 return strlen(buf);
2627}
2628static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR, _ctl_logging_level_show,
2629 _ctl_logging_level_store);
2630
2631/**
2632 * _ctl_fwfault_debug_show - show/store fwfault_debug
2633 * @cdev - pointer to embedded class device
2634 * @buf - the buffer returned
2635 *
2636 * mpt3sas_fwfault_debug is command line option
2637 * A sysfs 'read/write' shost attribute.
2638 */
2639static ssize_t
2640_ctl_fwfault_debug_show(struct device *cdev, struct device_attribute *attr,
2641 char *buf)
2642{
2643 struct Scsi_Host *shost = class_to_shost(cdev);
2644 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2645
2646 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->fwfault_debug);
2647}
2648static ssize_t
2649_ctl_fwfault_debug_store(struct device *cdev, struct device_attribute *attr,
2650 const char *buf, size_t count)
2651{
2652 struct Scsi_Host *shost = class_to_shost(cdev);
2653 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2654 int val = 0;
2655
2656 if (sscanf(buf, "%d", &val) != 1)
2657 return -EINVAL;
2658
2659 ioc->fwfault_debug = val;
2660 pr_info(MPT3SAS_FMT "fwfault_debug=%d\n", ioc->name,
2661 ioc->fwfault_debug);
2662 return strlen(buf);
2663}
2664static DEVICE_ATTR(fwfault_debug, S_IRUGO | S_IWUSR,
2665 _ctl_fwfault_debug_show, _ctl_fwfault_debug_store);
2666
2667/**
2668 * _ctl_ioc_reset_count_show - ioc reset count
2669 * @cdev - pointer to embedded class device
2670 * @buf - the buffer returned
2671 *
2672 * This is firmware queue depth limit
2673 *
2674 * A sysfs 'read-only' shost attribute.
2675 */
2676static ssize_t
2677_ctl_ioc_reset_count_show(struct device *cdev, struct device_attribute *attr,
2678 char *buf)
2679{
2680 struct Scsi_Host *shost = class_to_shost(cdev);
2681 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2682
2683 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->ioc_reset_count);
2684}
2685static DEVICE_ATTR(ioc_reset_count, S_IRUGO, _ctl_ioc_reset_count_show, NULL);
2686
2687/**
2688 * _ctl_ioc_reply_queue_count_show - number of reply queues
2689 * @cdev - pointer to embedded class device
2690 * @buf - the buffer returned
2691 *
2692 * This is number of reply queues
2693 *
2694 * A sysfs 'read-only' shost attribute.
2695 */
2696static ssize_t
2697_ctl_ioc_reply_queue_count_show(struct device *cdev,
2698 struct device_attribute *attr, char *buf)
2699{
2700 u8 reply_queue_count;
2701 struct Scsi_Host *shost = class_to_shost(cdev);
2702 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2703
2704 if ((ioc->facts.IOCCapabilities &
2705 MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX) && ioc->msix_enable)
2706 reply_queue_count = ioc->reply_queue_count;
2707 else
2708 reply_queue_count = 1;
2709
2710 return snprintf(buf, PAGE_SIZE, "%d\n", reply_queue_count);
2711}
2712static DEVICE_ATTR(reply_queue_count, S_IRUGO, _ctl_ioc_reply_queue_count_show,
2713 NULL);
2714
2715struct DIAG_BUFFER_START {
2716 __le32 Size;
2717 __le32 DiagVersion;
2718 u8 BufferType;
2719 u8 Reserved[3];
2720 __le32 Reserved1;
2721 __le32 Reserved2;
2722 __le32 Reserved3;
2723};
2724
2725/**
2726 * _ctl_host_trace_buffer_size_show - host buffer size (trace only)
2727 * @cdev - pointer to embedded class device
2728 * @buf - the buffer returned
2729 *
2730 * A sysfs 'read-only' shost attribute.
2731 */
2732static ssize_t
2733_ctl_host_trace_buffer_size_show(struct device *cdev,
2734 struct device_attribute *attr, char *buf)
2735{
2736 struct Scsi_Host *shost = class_to_shost(cdev);
2737 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2738 u32 size = 0;
2739 struct DIAG_BUFFER_START *request_data;
2740
2741 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
2742 pr_err(MPT3SAS_FMT
2743 "%s: host_trace_buffer is not registered\n",
2744 ioc->name, __func__);
2745 return 0;
2746 }
2747
2748 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2749 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
2750 pr_err(MPT3SAS_FMT
2751 "%s: host_trace_buffer is not registered\n",
2752 ioc->name, __func__);
2753 return 0;
2754 }
2755
2756 request_data = (struct DIAG_BUFFER_START *)
2757 ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE];
2758 if ((le32_to_cpu(request_data->DiagVersion) == 0x00000000 ||
2759 le32_to_cpu(request_data->DiagVersion) == 0x01000000 ||
2760 le32_to_cpu(request_data->DiagVersion) == 0x01010000) &&
2761 le32_to_cpu(request_data->Reserved3) == 0x4742444c)
2762 size = le32_to_cpu(request_data->Size);
2763
2764 ioc->ring_buffer_sz = size;
2765 return snprintf(buf, PAGE_SIZE, "%d\n", size);
2766}
2767static DEVICE_ATTR(host_trace_buffer_size, S_IRUGO,
2768 _ctl_host_trace_buffer_size_show, NULL);
2769
2770/**
2771 * _ctl_host_trace_buffer_show - firmware ring buffer (trace only)
2772 * @cdev - pointer to embedded class device
2773 * @buf - the buffer returned
2774 *
2775 * A sysfs 'read/write' shost attribute.
2776 *
2777 * You will only be able to read 4k bytes of ring buffer at a time.
2778 * In order to read beyond 4k bytes, you will have to write out the
2779 * offset to the same attribute, it will move the pointer.
2780 */
2781static ssize_t
2782_ctl_host_trace_buffer_show(struct device *cdev, struct device_attribute *attr,
2783 char *buf)
2784{
2785 struct Scsi_Host *shost = class_to_shost(cdev);
2786 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2787 void *request_data;
2788 u32 size;
2789
2790 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
2791 pr_err(MPT3SAS_FMT
2792 "%s: host_trace_buffer is not registered\n",
2793 ioc->name, __func__);
2794 return 0;
2795 }
2796
2797 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2798 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
2799 pr_err(MPT3SAS_FMT
2800 "%s: host_trace_buffer is not registered\n",
2801 ioc->name, __func__);
2802 return 0;
2803 }
2804
2805 if (ioc->ring_buffer_offset > ioc->ring_buffer_sz)
2806 return 0;
2807
2808 size = ioc->ring_buffer_sz - ioc->ring_buffer_offset;
2809 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size;
2810 request_data = ioc->diag_buffer[0] + ioc->ring_buffer_offset;
2811 memcpy(buf, request_data, size);
2812 return size;
2813}
2814
2815static ssize_t
2816_ctl_host_trace_buffer_store(struct device *cdev, struct device_attribute *attr,
2817 const char *buf, size_t count)
2818{
2819 struct Scsi_Host *shost = class_to_shost(cdev);
2820 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2821 int val = 0;
2822
2823 if (sscanf(buf, "%d", &val) != 1)
2824 return -EINVAL;
2825
2826 ioc->ring_buffer_offset = val;
2827 return strlen(buf);
2828}
2829static DEVICE_ATTR(host_trace_buffer, S_IRUGO | S_IWUSR,
2830 _ctl_host_trace_buffer_show, _ctl_host_trace_buffer_store);
2831
2832
2833/*****************************************/
2834
2835/**
2836 * _ctl_host_trace_buffer_enable_show - firmware ring buffer (trace only)
2837 * @cdev - pointer to embedded class device
2838 * @buf - the buffer returned
2839 *
2840 * A sysfs 'read/write' shost attribute.
2841 *
2842 * This is a mechnism to post/release host_trace_buffers
2843 */
2844static ssize_t
2845_ctl_host_trace_buffer_enable_show(struct device *cdev,
2846 struct device_attribute *attr, char *buf)
2847{
2848 struct Scsi_Host *shost = class_to_shost(cdev);
2849 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2850
2851 if ((!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) ||
2852 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2853 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0))
2854 return snprintf(buf, PAGE_SIZE, "off\n");
2855 else if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2856 MPT3_DIAG_BUFFER_IS_RELEASED))
2857 return snprintf(buf, PAGE_SIZE, "release\n");
2858 else
2859 return snprintf(buf, PAGE_SIZE, "post\n");
2860}
2861
2862static ssize_t
2863_ctl_host_trace_buffer_enable_store(struct device *cdev,
2864 struct device_attribute *attr, const char *buf, size_t count)
2865{
2866 struct Scsi_Host *shost = class_to_shost(cdev);
2867 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2868 char str[10] = "";
2869 struct mpt3_diag_register diag_register;
2870 u8 issue_reset = 0;
2871
2872 /* don't allow post/release occurr while recovery is active */
2873 if (ioc->shost_recovery || ioc->remove_host ||
2874 ioc->pci_error_recovery || ioc->is_driver_loading)
2875 return -EBUSY;
2876
2877 if (sscanf(buf, "%9s", str) != 1)
2878 return -EINVAL;
2879
2880 if (!strcmp(str, "post")) {
2881 /* exit out if host buffers are already posted */
2882 if ((ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) &&
2883 (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2884 MPT3_DIAG_BUFFER_IS_REGISTERED) &&
2885 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2886 MPT3_DIAG_BUFFER_IS_RELEASED) == 0))
2887 goto out;
2888 memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
2889 pr_info(MPT3SAS_FMT "posting host trace buffers\n",
2890 ioc->name);
2891 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
2892 diag_register.requested_buffer_size = (1024 * 1024);
2893 diag_register.unique_id = 0x7075900;
2894 ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] = 0;
2895 _ctl_diag_register_2(ioc, &diag_register);
2896 } else if (!strcmp(str, "release")) {
2897 /* exit out if host buffers are already released */
2898 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE])
2899 goto out;
2900 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2901 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0)
2902 goto out;
2903 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2904 MPT3_DIAG_BUFFER_IS_RELEASED))
2905 goto out;
2906 pr_info(MPT3SAS_FMT "releasing host trace buffer\n",
2907 ioc->name);
2908 mpt3sas_send_diag_release(ioc, MPI2_DIAG_BUF_TYPE_TRACE,
2909 &issue_reset);
2910 }
2911
2912 out:
2913 return strlen(buf);
2914}
2915static DEVICE_ATTR(host_trace_buffer_enable, S_IRUGO | S_IWUSR,
2916 _ctl_host_trace_buffer_enable_show,
2917 _ctl_host_trace_buffer_enable_store);
2918
2919/*********** diagnostic trigger suppport *********************************/
2920
2921/**
2922 * _ctl_diag_trigger_master_show - show the diag_trigger_master attribute
2923 * @cdev - pointer to embedded class device
2924 * @buf - the buffer returned
2925 *
2926 * A sysfs 'read/write' shost attribute.
2927 */
2928static ssize_t
2929_ctl_diag_trigger_master_show(struct device *cdev,
2930 struct device_attribute *attr, char *buf)
2931
2932{
2933 struct Scsi_Host *shost = class_to_shost(cdev);
2934 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2935 unsigned long flags;
2936 ssize_t rc;
2937
2938 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
2939 rc = sizeof(struct SL_WH_MASTER_TRIGGER_T);
2940 memcpy(buf, &ioc->diag_trigger_master, rc);
2941 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
2942 return rc;
2943}
2944
2945/**
2946 * _ctl_diag_trigger_master_store - store the diag_trigger_master attribute
2947 * @cdev - pointer to embedded class device
2948 * @buf - the buffer returned
2949 *
2950 * A sysfs 'read/write' shost attribute.
2951 */
2952static ssize_t
2953_ctl_diag_trigger_master_store(struct device *cdev,
2954 struct device_attribute *attr, const char *buf, size_t count)
2955
2956{
2957 struct Scsi_Host *shost = class_to_shost(cdev);
2958 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2959 unsigned long flags;
2960 ssize_t rc;
2961
2962 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
2963 rc = min(sizeof(struct SL_WH_MASTER_TRIGGER_T), count);
2964 memset(&ioc->diag_trigger_master, 0,
2965 sizeof(struct SL_WH_MASTER_TRIGGER_T));
2966 memcpy(&ioc->diag_trigger_master, buf, rc);
2967 ioc->diag_trigger_master.MasterData |=
2968 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
2969 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
2970 return rc;
2971}
2972static DEVICE_ATTR(diag_trigger_master, S_IRUGO | S_IWUSR,
2973 _ctl_diag_trigger_master_show, _ctl_diag_trigger_master_store);
2974
2975
2976/**
2977 * _ctl_diag_trigger_event_show - show the diag_trigger_event attribute
2978 * @cdev - pointer to embedded class device
2979 * @buf - the buffer returned
2980 *
2981 * A sysfs 'read/write' shost attribute.
2982 */
2983static ssize_t
2984_ctl_diag_trigger_event_show(struct device *cdev,
2985 struct device_attribute *attr, char *buf)
2986{
2987 struct Scsi_Host *shost = class_to_shost(cdev);
2988 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2989 unsigned long flags;
2990 ssize_t rc;
2991
2992 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
2993 rc = sizeof(struct SL_WH_EVENT_TRIGGERS_T);
2994 memcpy(buf, &ioc->diag_trigger_event, rc);
2995 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
2996 return rc;
2997}
2998
2999/**
3000 * _ctl_diag_trigger_event_store - store the diag_trigger_event attribute
3001 * @cdev - pointer to embedded class device
3002 * @buf - the buffer returned
3003 *
3004 * A sysfs 'read/write' shost attribute.
3005 */
3006static ssize_t
3007_ctl_diag_trigger_event_store(struct device *cdev,
3008 struct device_attribute *attr, const char *buf, size_t count)
3009
3010{
3011 struct Scsi_Host *shost = class_to_shost(cdev);
3012 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3013 unsigned long flags;
3014 ssize_t sz;
3015
3016 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3017 sz = min(sizeof(struct SL_WH_EVENT_TRIGGERS_T), count);
3018 memset(&ioc->diag_trigger_event, 0,
3019 sizeof(struct SL_WH_EVENT_TRIGGERS_T));
3020 memcpy(&ioc->diag_trigger_event, buf, sz);
3021 if (ioc->diag_trigger_event.ValidEntries > NUM_VALID_ENTRIES)
3022 ioc->diag_trigger_event.ValidEntries = NUM_VALID_ENTRIES;
3023 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3024 return sz;
3025}
3026static DEVICE_ATTR(diag_trigger_event, S_IRUGO | S_IWUSR,
3027 _ctl_diag_trigger_event_show, _ctl_diag_trigger_event_store);
3028
3029
3030/**
3031 * _ctl_diag_trigger_scsi_show - show the diag_trigger_scsi attribute
3032 * @cdev - pointer to embedded class device
3033 * @buf - the buffer returned
3034 *
3035 * A sysfs 'read/write' shost attribute.
3036 */
3037static ssize_t
3038_ctl_diag_trigger_scsi_show(struct device *cdev,
3039 struct device_attribute *attr, char *buf)
3040{
3041 struct Scsi_Host *shost = class_to_shost(cdev);
3042 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3043 unsigned long flags;
3044 ssize_t rc;
3045
3046 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3047 rc = sizeof(struct SL_WH_SCSI_TRIGGERS_T);
3048 memcpy(buf, &ioc->diag_trigger_scsi, rc);
3049 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3050 return rc;
3051}
3052
3053/**
3054 * _ctl_diag_trigger_scsi_store - store the diag_trigger_scsi attribute
3055 * @cdev - pointer to embedded class device
3056 * @buf - the buffer returned
3057 *
3058 * A sysfs 'read/write' shost attribute.
3059 */
3060static ssize_t
3061_ctl_diag_trigger_scsi_store(struct device *cdev,
3062 struct device_attribute *attr, const char *buf, size_t count)
3063{
3064 struct Scsi_Host *shost = class_to_shost(cdev);
3065 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3066 unsigned long flags;
3067 ssize_t sz;
3068
3069 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3070 sz = min(sizeof(struct SL_WH_SCSI_TRIGGERS_T), count);
3071 memset(&ioc->diag_trigger_scsi, 0,
3072 sizeof(struct SL_WH_EVENT_TRIGGERS_T));
3073 memcpy(&ioc->diag_trigger_scsi, buf, sz);
3074 if (ioc->diag_trigger_scsi.ValidEntries > NUM_VALID_ENTRIES)
3075 ioc->diag_trigger_scsi.ValidEntries = NUM_VALID_ENTRIES;
3076 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3077 return sz;
3078}
3079static DEVICE_ATTR(diag_trigger_scsi, S_IRUGO | S_IWUSR,
3080 _ctl_diag_trigger_scsi_show, _ctl_diag_trigger_scsi_store);
3081
3082
3083/**
3084 * _ctl_diag_trigger_scsi_show - show the diag_trigger_mpi attribute
3085 * @cdev - pointer to embedded class device
3086 * @buf - the buffer returned
3087 *
3088 * A sysfs 'read/write' shost attribute.
3089 */
3090static ssize_t
3091_ctl_diag_trigger_mpi_show(struct device *cdev,
3092 struct device_attribute *attr, char *buf)
3093{
3094 struct Scsi_Host *shost = class_to_shost(cdev);
3095 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3096 unsigned long flags;
3097 ssize_t rc;
3098
3099 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3100 rc = sizeof(struct SL_WH_MPI_TRIGGERS_T);
3101 memcpy(buf, &ioc->diag_trigger_mpi, rc);
3102 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3103 return rc;
3104}
3105
3106/**
3107 * _ctl_diag_trigger_mpi_store - store the diag_trigger_mpi attribute
3108 * @cdev - pointer to embedded class device
3109 * @buf - the buffer returned
3110 *
3111 * A sysfs 'read/write' shost attribute.
3112 */
3113static ssize_t
3114_ctl_diag_trigger_mpi_store(struct device *cdev,
3115 struct device_attribute *attr, const char *buf, size_t count)
3116{
3117 struct Scsi_Host *shost = class_to_shost(cdev);
3118 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3119 unsigned long flags;
3120 ssize_t sz;
3121
3122 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3123 sz = min(sizeof(struct SL_WH_MPI_TRIGGERS_T), count);
3124 memset(&ioc->diag_trigger_mpi, 0,
66331e8c 3125 sizeof(ioc->diag_trigger_mpi));
f92363d1
SR		 3126 memcpy(&ioc->diag_trigger_mpi, buf, sz);
3127 if (ioc->diag_trigger_mpi.ValidEntries > NUM_VALID_ENTRIES)
3128 ioc->diag_trigger_mpi.ValidEntries = NUM_VALID_ENTRIES;
3129 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3130 return sz;
3131}
3132
3133static DEVICE_ATTR(diag_trigger_mpi, S_IRUGO | S_IWUSR,
3134 _ctl_diag_trigger_mpi_show, _ctl_diag_trigger_mpi_store);
3135
3136/*********** diagnostic trigger suppport *** END ****************************/
3137
3138
3139
3140/*****************************************/
3141
3142struct device_attribute *mpt3sas_host_attrs[] = {
3143 &dev_attr_version_fw,
3144 &dev_attr_version_bios,
3145 &dev_attr_version_mpi,
3146 &dev_attr_version_product,
3147 &dev_attr_version_nvdata_persistent,
3148 &dev_attr_version_nvdata_default,
3149 &dev_attr_board_name,
3150 &dev_attr_board_assembly,
3151 &dev_attr_board_tracer,
3152 &dev_attr_io_delay,
3153 &dev_attr_device_delay,
3154 &dev_attr_logging_level,
3155 &dev_attr_fwfault_debug,
3156 &dev_attr_fw_queue_depth,
3157 &dev_attr_host_sas_address,
3158 &dev_attr_ioc_reset_count,
3159 &dev_attr_host_trace_buffer_size,
3160 &dev_attr_host_trace_buffer,
3161 &dev_attr_host_trace_buffer_enable,
3162 &dev_attr_reply_queue_count,
3163 &dev_attr_diag_trigger_master,
3164 &dev_attr_diag_trigger_event,
3165 &dev_attr_diag_trigger_scsi,
3166 &dev_attr_diag_trigger_mpi,
3167 NULL,
3168};
3169
3170/* device attributes */
3171
3172/**
3173 * _ctl_device_sas_address_show - sas address
3174 * @cdev - pointer to embedded class device
3175 * @buf - the buffer returned
3176 *
3177 * This is the sas address for the target
3178 *
3179 * A sysfs 'read-only' shost attribute.
3180 */
3181static ssize_t
3182_ctl_device_sas_address_show(struct device *dev, struct device_attribute *attr,
3183 char *buf)
3184{
3185 struct scsi_device *sdev = to_scsi_device(dev);
3186 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3187
3188 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
3189 (unsigned long long)sas_device_priv_data->sas_target->sas_address);
3190}
3191static DEVICE_ATTR(sas_address, S_IRUGO, _ctl_device_sas_address_show, NULL);
3192
3193/**
3194 * _ctl_device_handle_show - device handle
3195 * @cdev - pointer to embedded class device
3196 * @buf - the buffer returned
3197 *
3198 * This is the firmware assigned device handle
3199 *
3200 * A sysfs 'read-only' shost attribute.
3201 */
3202static ssize_t
3203_ctl_device_handle_show(struct device *dev, struct device_attribute *attr,
3204 char *buf)
3205{
3206 struct scsi_device *sdev = to_scsi_device(dev);
3207 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3208
3209 return snprintf(buf, PAGE_SIZE, "0x%04x\n",
3210 sas_device_priv_data->sas_target->handle);
3211}
3212static DEVICE_ATTR(sas_device_handle, S_IRUGO, _ctl_device_handle_show, NULL);
3213
3214struct device_attribute *mpt3sas_dev_attrs[] = {
3215 &dev_attr_sas_address,
3216 &dev_attr_sas_device_handle,
3217 NULL,
3218};
3219
3220static const struct file_operations ctl_fops = {
3221 .owner = THIS_MODULE,
3222 .unlocked_ioctl = _ctl_ioctl,
f92363d1
SR		 3223 .poll = _ctl_poll,
3224 .fasync = _ctl_fasync,
3225#ifdef CONFIG_COMPAT
3226 .compat_ioctl = _ctl_ioctl_compat,
3227#endif
3228};
3229
3230static struct miscdevice ctl_dev = {
3231 .minor = MPT3SAS_MINOR,
3232 .name = MPT3SAS_DEV_NAME,
3233 .fops = &ctl_fops,
3234};
3235
3236/**
3237 * mpt3sas_ctl_init - main entry point for ctl.
3238 *
3239 */
3240void
3241mpt3sas_ctl_init(void)
3242{
3243 async_queue = NULL;
3244 if (misc_register(&ctl_dev) < 0)
3245 pr_err("%s can't register misc device [minor=%d]\n",
3246 MPT3SAS_DRIVER_NAME, MPT3SAS_MINOR);
3247
3248 init_waitqueue_head(&ctl_poll_wait);
3249}
3250
3251/**
3252 * mpt3sas_ctl_exit - exit point for ctl
3253 *
3254 */
3255void
3256mpt3sas_ctl_exit(void)
3257{
3258 struct MPT3SAS_ADAPTER *ioc;
3259 int i;
3260
3261 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
3262
3263 /* free memory associated to diag buffers */
3264 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
3265 if (!ioc->diag_buffer[i])
3266 continue;
3267 if (!(ioc->diag_buffer_status[i] &
3268 MPT3_DIAG_BUFFER_IS_REGISTERED))
3269 continue;
3270 if ((ioc->diag_buffer_status[i] &
3271 MPT3_DIAG_BUFFER_IS_RELEASED))
3272 continue;
3273 pci_free_consistent(ioc->pdev, ioc->diag_buffer_sz[i],
3274 ioc->diag_buffer[i], ioc->diag_buffer_dma[i]);
3275 ioc->diag_buffer[i] = NULL;
3276 ioc->diag_buffer_status[i] = 0;
3277 }
3278
3279 kfree(ioc->event_log);
3280 }
3281 misc_deregister(&ctl_dev);
3282}
kernel source for telekom puls (alcatel/mediatek)