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[SCSI] mpt2sas: Support for stopping driver when Firmware encounters
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / scsi / mpt2sas / mpt2sas_ctl.c
blob6901a6706ede3d9f8fdb062939d7f2c2da75e33a
1 /*
2 * Management Module Support for MPT (Message Passing Technology) based
3 * controllers
4 *
5 * This code is based on drivers/scsi/mpt2sas/mpt2_ctl.c
6 * Copyright (C) 2007-2009 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
45 #include <linux/version.h>
46 #include <linux/kernel.h>
47 #include <linux/module.h>
48 #include <linux/errno.h>
49 #include <linux/init.h>
50 #include <linux/slab.h>
51 #include <linux/types.h>
52 #include <linux/pci.h>
53 #include <linux/delay.h>
54 #include <linux/smp_lock.h>
55 #include <linux/compat.h>
56 #include <linux/poll.h>
57
58 #include <linux/io.h>
59 #include <linux/uaccess.h>
60
61 #include "mpt2sas_base.h"
62 #include "mpt2sas_ctl.h"
63
64 static struct fasync_struct *async_queue;
65 static DECLARE_WAIT_QUEUE_HEAD(ctl_poll_wait);
66
67 static int _ctl_send_release(struct MPT2SAS_ADAPTER *ioc, u8 buffer_type,
68 u8 *issue_reset);
69
70 /**
71 * enum block_state - blocking state
72 * @NON_BLOCKING: non blocking
73 * @BLOCKING: blocking
74 *
75 * These states are for ioctls that need to wait for a response
76 * from firmware, so they probably require sleep.
77 */
78 enum block_state {
79 NON_BLOCKING,
80 BLOCKING,
81 };
82
83 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
84 /**
85 * _ctl_display_some_debug - debug routine
86 * @ioc: per adapter object
87 * @smid: system request message index
88 * @calling_function_name: string pass from calling function
89 * @mpi_reply: reply message frame
90 * Context: none.
91 *
92 * Function for displaying debug info helpfull when debugging issues
93 * in this module.
94 */
95 static void
96 _ctl_display_some_debug(struct MPT2SAS_ADAPTER *ioc, u16 smid,
97 char *calling_function_name, MPI2DefaultReply_t *mpi_reply)
98 {
99 Mpi2ConfigRequest_t *mpi_request;
100 char *desc = NULL;
101
102 if (!(ioc->logging_level & MPT_DEBUG_IOCTL))
103 return;
104
105 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
106 switch (mpi_request->Function) {
107 case MPI2_FUNCTION_SCSI_IO_REQUEST:
108 {
109 Mpi2SCSIIORequest_t *scsi_request =
110 (Mpi2SCSIIORequest_t *)mpi_request;
111
112 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
113 "scsi_io, cmd(0x%02x), cdb_len(%d)",
114 scsi_request->CDB.CDB32[0],
115 le16_to_cpu(scsi_request->IoFlags) & 0xF);
116 desc = ioc->tmp_string;
117 break;
118 }
119 case MPI2_FUNCTION_SCSI_TASK_MGMT:
120 desc = "task_mgmt";
121 break;
122 case MPI2_FUNCTION_IOC_INIT:
123 desc = "ioc_init";
124 break;
125 case MPI2_FUNCTION_IOC_FACTS:
126 desc = "ioc_facts";
127 break;
128 case MPI2_FUNCTION_CONFIG:
129 {
130 Mpi2ConfigRequest_t *config_request =
131 (Mpi2ConfigRequest_t *)mpi_request;
132
133 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
134 "config, type(0x%02x), ext_type(0x%02x), number(%d)",
135 (config_request->Header.PageType &
136 MPI2_CONFIG_PAGETYPE_MASK), config_request->ExtPageType,
137 config_request->Header.PageNumber);
138 desc = ioc->tmp_string;
139 break;
140 }
141 case MPI2_FUNCTION_PORT_FACTS:
142 desc = "port_facts";
143 break;
144 case MPI2_FUNCTION_PORT_ENABLE:
145 desc = "port_enable";
146 break;
147 case MPI2_FUNCTION_EVENT_NOTIFICATION:
148 desc = "event_notification";
149 break;
150 case MPI2_FUNCTION_FW_DOWNLOAD:
151 desc = "fw_download";
152 break;
153 case MPI2_FUNCTION_FW_UPLOAD:
154 desc = "fw_upload";
155 break;
156 case MPI2_FUNCTION_RAID_ACTION:
157 desc = "raid_action";
158 break;
159 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
160 {
161 Mpi2SCSIIORequest_t *scsi_request =
162 (Mpi2SCSIIORequest_t *)mpi_request;
163
164 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
165 "raid_pass, cmd(0x%02x), cdb_len(%d)",
166 scsi_request->CDB.CDB32[0],
167 le16_to_cpu(scsi_request->IoFlags) & 0xF);
168 desc = ioc->tmp_string;
169 break;
170 }
171 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
172 desc = "sas_iounit_cntl";
173 break;
174 case MPI2_FUNCTION_SATA_PASSTHROUGH:
175 desc = "sata_pass";
176 break;
177 case MPI2_FUNCTION_DIAG_BUFFER_POST:
178 desc = "diag_buffer_post";
179 break;
180 case MPI2_FUNCTION_DIAG_RELEASE:
181 desc = "diag_release";
182 break;
183 case MPI2_FUNCTION_SMP_PASSTHROUGH:
184 desc = "smp_passthrough";
185 break;
186 }
187
188 if (!desc)
189 return;
190
191 printk(MPT2SAS_DEBUG_FMT "%s: %s, smid(%d)\n",
192 ioc->name, calling_function_name, desc, smid);
193
194 if (!mpi_reply)
195 return;
196
197 if (mpi_reply->IOCStatus || mpi_reply->IOCLogInfo)
198 printk(MPT2SAS_DEBUG_FMT
199 "\tiocstatus(0x%04x), loginfo(0x%08x)\n",
200 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
201 le32_to_cpu(mpi_reply->IOCLogInfo));
202
203 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
204 mpi_request->Function ==
205 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
206 Mpi2SCSIIOReply_t *scsi_reply =
207 (Mpi2SCSIIOReply_t *)mpi_reply;
208 if (scsi_reply->SCSIState || scsi_reply->SCSIStatus)
209 printk(MPT2SAS_DEBUG_FMT
210 "\tscsi_state(0x%02x), scsi_status"
211 "(0x%02x)\n", ioc->name,
212 scsi_reply->SCSIState,
213 scsi_reply->SCSIStatus);
214 }
215 }
216 #endif
217
218 /**
219 * mpt2sas_ctl_done - ctl module completion routine
220 * @ioc: per adapter object
221 * @smid: system request message index
222 * @msix_index: MSIX table index supplied by the OS
223 * @reply: reply message frame(lower 32bit addr)
224 * Context: none.
225 *
226 * The callback handler when using ioc->ctl_cb_idx.
227 *
228 * Return 1 meaning mf should be freed from _base_interrupt
229 * 0 means the mf is freed from this function.
230 */
231 u8
232 mpt2sas_ctl_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
233 u32 reply)
234 {
235 MPI2DefaultReply_t *mpi_reply;
236
237 if (ioc->ctl_cmds.status == MPT2_CMD_NOT_USED)
238 return 1;
239 if (ioc->ctl_cmds.smid != smid)
240 return 1;
241 ioc->ctl_cmds.status |= MPT2_CMD_COMPLETE;
242 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
243 if (mpi_reply) {
244 memcpy(ioc->ctl_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
245 ioc->ctl_cmds.status |= MPT2_CMD_REPLY_VALID;
246 }
247 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
248 _ctl_display_some_debug(ioc, smid, "ctl_done", mpi_reply);
249 #endif
250 ioc->ctl_cmds.status &= ~MPT2_CMD_PENDING;
251 complete(&ioc->ctl_cmds.done);
252 return 1;
253 }
254
255 /**
256 * _ctl_check_event_type - determines when an event needs logging
257 * @ioc: per adapter object
258 * @event: firmware event
259 *
260 * The bitmask in ioc->event_type[] indicates which events should be
261 * be saved in the driver event_log. This bitmask is set by application.
262 *
263 * Returns 1 when event should be captured, or zero means no match.
264 */
265 static int
266 _ctl_check_event_type(struct MPT2SAS_ADAPTER *ioc, u16 event)
267 {
268 u16 i;
269 u32 desired_event;
270
271 if (event >= 128 || !event || !ioc->event_log)
272 return 0;
273
274 desired_event = (1 << (event % 32));
275 if (!desired_event)
276 desired_event = 1;
277 i = event / 32;
278 return desired_event & ioc->event_type[i];
279 }
280
281 /**
282 * mpt2sas_ctl_add_to_event_log - add event
283 * @ioc: per adapter object
284 * @mpi_reply: reply message frame
285 *
286 * Return nothing.
287 */
288 void
289 mpt2sas_ctl_add_to_event_log(struct MPT2SAS_ADAPTER *ioc,
290 Mpi2EventNotificationReply_t *mpi_reply)
291 {
292 struct MPT2_IOCTL_EVENTS *event_log;
293 u16 event;
294 int i;
295 u32 sz, event_data_sz;
296 u8 send_aen = 0;
297
298 if (!ioc->event_log)
299 return;
300
301 event = le16_to_cpu(mpi_reply->Event);
302
303 if (_ctl_check_event_type(ioc, event)) {
304
305 /* insert entry into circular event_log */
306 i = ioc->event_context % MPT2SAS_CTL_EVENT_LOG_SIZE;
307 event_log = ioc->event_log;
308 event_log[i].event = event;
309 event_log[i].context = ioc->event_context++;
310
311 event_data_sz = le16_to_cpu(mpi_reply->EventDataLength)*4;
312 sz = min_t(u32, event_data_sz, MPT2_EVENT_DATA_SIZE);
313 memset(event_log[i].data, 0, MPT2_EVENT_DATA_SIZE);
314 memcpy(event_log[i].data, mpi_reply->EventData, sz);
315 send_aen = 1;
316 }
317
318 /* This aen_event_read_flag flag is set until the
319 * application has read the event log.
320 * For MPI2_EVENT_LOG_ENTRY_ADDED, we always notify.
321 */
322 if (event == MPI2_EVENT_LOG_ENTRY_ADDED ||
323 (send_aen && !ioc->aen_event_read_flag)) {
324 ioc->aen_event_read_flag = 1;
325 wake_up_interruptible(&ctl_poll_wait);
326 if (async_queue)
327 kill_fasync(&async_queue, SIGIO, POLL_IN);
328 }
329 }
330
331 /**
332 * mpt2sas_ctl_event_callback - firmware event handler (called at ISR time)
333 * @ioc: per adapter object
334 * @msix_index: MSIX table index supplied by the OS
335 * @reply: reply message frame(lower 32bit addr)
336 * Context: interrupt.
337 *
338 * This function merely adds a new work task into ioc->firmware_event_thread.
339 * The tasks are worked from _firmware_event_work in user context.
340 *
341 * Return 1 meaning mf should be freed from _base_interrupt
342 * 0 means the mf is freed from this function.
343 */
344 u8
345 mpt2sas_ctl_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index,
346 u32 reply)
347 {
348 Mpi2EventNotificationReply_t *mpi_reply;
349
350 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
351 mpt2sas_ctl_add_to_event_log(ioc, mpi_reply);
352 return 1;
353 }
354
355 /**
356 * _ctl_verify_adapter - validates ioc_number passed from application
357 * @ioc: per adapter object
358 * @iocpp: The ioc pointer is returned in this.
359 *
360 * Return (-1) means error, else ioc_number.
361 */
362 static int
363 _ctl_verify_adapter(int ioc_number, struct MPT2SAS_ADAPTER **iocpp)
364 {
365 struct MPT2SAS_ADAPTER *ioc;
366
367 list_for_each_entry(ioc, &mpt2sas_ioc_list, list) {
368 if (ioc->id != ioc_number)
369 continue;
370 *iocpp = ioc;
371 return ioc_number;
372 }
373 *iocpp = NULL;
374 return -1;
375 }
376
377 /**
378 * mpt2sas_ctl_reset_handler - reset callback handler (for ctl)
379 * @ioc: per adapter object
380 * @reset_phase: phase
381 *
382 * The handler for doing any required cleanup or initialization.
383 *
384 * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET,
385 * MPT2_IOC_DONE_RESET
386 */
387 void
388 mpt2sas_ctl_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
389 {
390 int i;
391 u8 issue_reset;
392
393 switch (reset_phase) {
394 case MPT2_IOC_PRE_RESET:
395 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
396 "MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
397 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
398 if (!(ioc->diag_buffer_status[i] &
399 MPT2_DIAG_BUFFER_IS_REGISTERED))
400 continue;
401 if ((ioc->diag_buffer_status[i] &
402 MPT2_DIAG_BUFFER_IS_RELEASED))
403 continue;
404 _ctl_send_release(ioc, i, &issue_reset);
405 }
406 break;
407 case MPT2_IOC_AFTER_RESET:
408 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
409 "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
410 if (ioc->ctl_cmds.status & MPT2_CMD_PENDING) {
411 ioc->ctl_cmds.status |= MPT2_CMD_RESET;
412 mpt2sas_base_free_smid(ioc, ioc->ctl_cmds.smid);
413 complete(&ioc->ctl_cmds.done);
414 }
415 break;
416 case MPT2_IOC_DONE_RESET:
417 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
418 "MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
419
420 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
421 if (!(ioc->diag_buffer_status[i] &
422 MPT2_DIAG_BUFFER_IS_REGISTERED))
423 continue;
424 if ((ioc->diag_buffer_status[i] &
425 MPT2_DIAG_BUFFER_IS_RELEASED))
426 continue;
427 ioc->diag_buffer_status[i] |=
428 MPT2_DIAG_BUFFER_IS_DIAG_RESET;
429 }
430 break;
431 }
432 }
433
434 /**
435 * _ctl_fasync -
436 * @fd -
437 * @filep -
438 * @mode -
439 *
440 * Called when application request fasyn callback handler.
441 */
442 static int
443 _ctl_fasync(int fd, struct file *filep, int mode)
444 {
445 return fasync_helper(fd, filep, mode, &async_queue);
446 }
447
448 /**
449 * _ctl_release -
450 * @inode -
451 * @filep -
452 *
453 * Called when application releases the fasyn callback handler.
454 */
455 static int
456 _ctl_release(struct inode *inode, struct file *filep)
457 {
458 return fasync_helper(-1, filep, 0, &async_queue);
459 }
460
461 /**
462 * _ctl_poll -
463 * @file -
464 * @wait -
465 *
466 */
467 static unsigned int
468 _ctl_poll(struct file *filep, poll_table *wait)
469 {
470 struct MPT2SAS_ADAPTER *ioc;
471
472 poll_wait(filep, &ctl_poll_wait, wait);
473
474 list_for_each_entry(ioc, &mpt2sas_ioc_list, list) {
475 if (ioc->aen_event_read_flag)
476 return POLLIN | POLLRDNORM;
477 }
478 return 0;
479 }
480
481 /**
482 * _ctl_set_task_mid - assign an active smid to tm request
483 * @ioc: per adapter object
484 * @karg - (struct mpt2_ioctl_command)
485 * @tm_request - pointer to mf from user space
486 *
487 * Returns 0 when an smid if found, else fail.
488 * during failure, the reply frame is filled.
489 */
490 static int
491 _ctl_set_task_mid(struct MPT2SAS_ADAPTER *ioc, struct mpt2_ioctl_command *karg,
492 Mpi2SCSITaskManagementRequest_t *tm_request)
493 {
494 u8 found = 0;
495 u16 i;
496 u16 handle;
497 struct scsi_cmnd *scmd;
498 struct MPT2SAS_DEVICE *priv_data;
499 unsigned long flags;
500 Mpi2SCSITaskManagementReply_t *tm_reply;
501 u32 sz;
502 u32 lun;
503 char *desc = NULL;
504
505 if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
506 desc = "abort_task";
507 else if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK)
508 desc = "query_task";
509 else
510 return 0;
511
512 lun = scsilun_to_int((struct scsi_lun *)tm_request->LUN);
513
514 handle = le16_to_cpu(tm_request->DevHandle);
515 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
516 for (i = ioc->scsiio_depth; i && !found; i--) {
517 scmd = ioc->scsi_lookup[i - 1].scmd;
518 if (scmd == NULL || scmd->device == NULL ||
519 scmd->device->hostdata == NULL)
520 continue;
521 if (lun != scmd->device->lun)
522 continue;
523 priv_data = scmd->device->hostdata;
524 if (priv_data->sas_target == NULL)
525 continue;
526 if (priv_data->sas_target->handle != handle)
527 continue;
528 tm_request->TaskMID = cpu_to_le16(ioc->scsi_lookup[i - 1].smid);
529 found = 1;
530 }
531 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
532
533 if (!found) {
534 dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
535 "handle(0x%04x), lun(%d), no active mid!!\n", ioc->name,
536 desc, tm_request->DevHandle, lun));
537 tm_reply = ioc->ctl_cmds.reply;
538 tm_reply->DevHandle = tm_request->DevHandle;
539 tm_reply->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
540 tm_reply->TaskType = tm_request->TaskType;
541 tm_reply->MsgLength = sizeof(Mpi2SCSITaskManagementReply_t)/4;
542 tm_reply->VP_ID = tm_request->VP_ID;
543 tm_reply->VF_ID = tm_request->VF_ID;
544 sz = min_t(u32, karg->max_reply_bytes, ioc->reply_sz);
545 if (copy_to_user(karg->reply_frame_buf_ptr, ioc->ctl_cmds.reply,
546 sz))
547 printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
548 __LINE__, __func__);
549 return 1;
550 }
551
552 dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
553 "handle(0x%04x), lun(%d), task_mid(%d)\n", ioc->name,
554 desc, tm_request->DevHandle, lun, tm_request->TaskMID));
555 return 0;
556 }
557
558 /**
559 * _ctl_do_mpt_command - main handler for MPT2COMMAND opcode
560 * @ioc: per adapter object
561 * @karg - (struct mpt2_ioctl_command)
562 * @mf - pointer to mf in user space
563 * @state - NON_BLOCKING or BLOCKING
564 */
565 static long
566 _ctl_do_mpt_command(struct MPT2SAS_ADAPTER *ioc,
567 struct mpt2_ioctl_command karg, void __user *mf, enum block_state state)
568 {
569 MPI2RequestHeader_t *mpi_request;
570 MPI2DefaultReply_t *mpi_reply;
571 u32 ioc_state;
572 u16 ioc_status;
573 u16 smid;
574 unsigned long timeout, timeleft;
575 u8 issue_reset;
576 u32 sz;
577 void *psge;
578 void *priv_sense = NULL;
579 void *data_out = NULL;
580 dma_addr_t data_out_dma;
581 size_t data_out_sz = 0;
582 void *data_in = NULL;
583 dma_addr_t data_in_dma;
584 size_t data_in_sz = 0;
585 u32 sgl_flags;
586 long ret;
587 u16 wait_state_count;
588
589 issue_reset = 0;
590
591 if (state == NON_BLOCKING && !mutex_trylock(&ioc->ctl_cmds.mutex))
592 return -EAGAIN;
593 else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex))
594 return -ERESTARTSYS;
595
596 if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) {
597 printk(MPT2SAS_ERR_FMT "%s: ctl_cmd in use\n",
598 ioc->name, __func__);
599 ret = -EAGAIN;
600 goto out;
601 }
602
603 wait_state_count = 0;
604 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
605 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
606 if (wait_state_count++ == 10) {
607 printk(MPT2SAS_ERR_FMT
608 "%s: failed due to ioc not operational\n",
609 ioc->name, __func__);
610 ret = -EFAULT;
611 goto out;
612 }
613 ssleep(1);
614 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
615 printk(MPT2SAS_INFO_FMT "%s: waiting for "
616 "operational state(count=%d)\n", ioc->name,
617 __func__, wait_state_count);
618 }
619 if (wait_state_count)
620 printk(MPT2SAS_INFO_FMT "%s: ioc is operational\n",
621 ioc->name, __func__);
622
623 smid = mpt2sas_base_get_smid_scsiio(ioc, ioc->ctl_cb_idx, NULL);
624 if (!smid) {
625 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
626 ioc->name, __func__);
627 ret = -EAGAIN;
628 goto out;
629 }
630
631 ret = 0;
632 ioc->ctl_cmds.status = MPT2_CMD_PENDING;
633 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
634 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
635 ioc->ctl_cmds.smid = smid;
636 data_out_sz = karg.data_out_size;
637 data_in_sz = karg.data_in_size;
638
639 /* copy in request message frame from user */
640 if (copy_from_user(mpi_request, mf, karg.data_sge_offset*4)) {
641 printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, __LINE__,
642 __func__);
643 ret = -EFAULT;
644 mpt2sas_base_free_smid(ioc, smid);
645 goto out;
646 }
647
648 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
649 mpi_request->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
650 if (!mpi_request->FunctionDependent1 ||
651 mpi_request->FunctionDependent1 >
652 cpu_to_le16(ioc->facts.MaxDevHandle)) {
653 ret = -EINVAL;
654 mpt2sas_base_free_smid(ioc, smid);
655 goto out;
656 }
657 }
658
659 /* obtain dma-able memory for data transfer */
660 if (data_out_sz) /* WRITE */ {
661 data_out = pci_alloc_consistent(ioc->pdev, data_out_sz,
662 &data_out_dma);
663 if (!data_out) {
664 printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
665 __LINE__, __func__);
666 ret = -ENOMEM;
667 mpt2sas_base_free_smid(ioc, smid);
668 goto out;
669 }
670 if (copy_from_user(data_out, karg.data_out_buf_ptr,
671 data_out_sz)) {
672 printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
673 __LINE__, __func__);
674 ret = -EFAULT;
675 mpt2sas_base_free_smid(ioc, smid);
676 goto out;
677 }
678 }
679
680 if (data_in_sz) /* READ */ {
681 data_in = pci_alloc_consistent(ioc->pdev, data_in_sz,
682 &data_in_dma);
683 if (!data_in) {
684 printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
685 __LINE__, __func__);
686 ret = -ENOMEM;
687 mpt2sas_base_free_smid(ioc, smid);
688 goto out;
689 }
690 }
691
692 /* add scatter gather elements */
693 psge = (void *)mpi_request + (karg.data_sge_offset*4);
694
695 if (!data_out_sz && !data_in_sz) {
696 mpt2sas_base_build_zero_len_sge(ioc, psge);
697 } else if (data_out_sz && data_in_sz) {
698 /* WRITE sgel first */
699 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
700 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC);
701 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
702 ioc->base_add_sg_single(psge, sgl_flags |
703 data_out_sz, data_out_dma);
704
705 /* incr sgel */
706 psge += ioc->sge_size;
707
708 /* READ sgel last */
709 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
710 MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
711 MPI2_SGE_FLAGS_END_OF_LIST);
712 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
713 ioc->base_add_sg_single(psge, sgl_flags |
714 data_in_sz, data_in_dma);
715 } else if (data_out_sz) /* WRITE */ {
716 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
717 MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
718 MPI2_SGE_FLAGS_END_OF_LIST | MPI2_SGE_FLAGS_HOST_TO_IOC);
719 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
720 ioc->base_add_sg_single(psge, sgl_flags |
721 data_out_sz, data_out_dma);
722 } else if (data_in_sz) /* READ */ {
723 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
724 MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
725 MPI2_SGE_FLAGS_END_OF_LIST);
726 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
727 ioc->base_add_sg_single(psge, sgl_flags |
728 data_in_sz, data_in_dma);
729 }
730
731 /* send command to firmware */
732 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
733 _ctl_display_some_debug(ioc, smid, "ctl_request", NULL);
734 #endif
735
736 switch (mpi_request->Function) {
737 case MPI2_FUNCTION_SCSI_IO_REQUEST:
738 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
739 {
740 Mpi2SCSIIORequest_t *scsiio_request =
741 (Mpi2SCSIIORequest_t *)mpi_request;
742 scsiio_request->SenseBufferLowAddress =
743 (u32)mpt2sas_base_get_sense_buffer_dma(ioc, smid);
744 priv_sense = mpt2sas_base_get_sense_buffer(ioc, smid);
745 memset(priv_sense, 0, SCSI_SENSE_BUFFERSIZE);
746 mpt2sas_base_put_smid_scsi_io(ioc, smid,
747 le16_to_cpu(mpi_request->FunctionDependent1));
748 break;
749 }
750 case MPI2_FUNCTION_SCSI_TASK_MGMT:
751 {
752 Mpi2SCSITaskManagementRequest_t *tm_request =
753 (Mpi2SCSITaskManagementRequest_t *)mpi_request;
754
755 if (tm_request->TaskType ==
756 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK ||
757 tm_request->TaskType ==
758 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) {
759 if (_ctl_set_task_mid(ioc, &karg, tm_request)) {
760 mpt2sas_base_free_smid(ioc, smid);
761 goto out;
762 }
763 }
764
765 mutex_lock(&ioc->tm_cmds.mutex);
766 mpt2sas_scsih_set_tm_flag(ioc, le16_to_cpu(
767 tm_request->DevHandle));
768 mpt2sas_base_put_smid_hi_priority(ioc, smid);
769 break;
770 }
771 case MPI2_FUNCTION_SMP_PASSTHROUGH:
772 {
773 Mpi2SmpPassthroughRequest_t *smp_request =
774 (Mpi2SmpPassthroughRequest_t *)mpi_request;
775 u8 *data;
776
777 /* ioc determines which port to use */
778 smp_request->PhysicalPort = 0xFF;
779 if (smp_request->PassthroughFlags &
780 MPI2_SMP_PT_REQ_PT_FLAGS_IMMEDIATE)
781 data = (u8 *)&smp_request->SGL;
782 else
783 data = data_out;
784
785 if (data[1] == 0x91 && (data[10] == 1 || data[10] == 2)) {
786 ioc->ioc_link_reset_in_progress = 1;
787 ioc->ignore_loginfos = 1;
788 }
789 mpt2sas_base_put_smid_default(ioc, smid);
790 break;
791 }
792 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
793 {
794 Mpi2SasIoUnitControlRequest_t *sasiounit_request =
795 (Mpi2SasIoUnitControlRequest_t *)mpi_request;
796
797 if (sasiounit_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET
798 || sasiounit_request->Operation ==
799 MPI2_SAS_OP_PHY_LINK_RESET) {
800 ioc->ioc_link_reset_in_progress = 1;
801 ioc->ignore_loginfos = 1;
802 }
803 mpt2sas_base_put_smid_default(ioc, smid);
804 break;
805 }
806 default:
807 mpt2sas_base_put_smid_default(ioc, smid);
808 break;
809 }
810
811 if (karg.timeout < MPT2_IOCTL_DEFAULT_TIMEOUT)
812 timeout = MPT2_IOCTL_DEFAULT_TIMEOUT;
813 else
814 timeout = karg.timeout;
815 init_completion(&ioc->ctl_cmds.done);
816 timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
817 timeout*HZ);
818 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
819 Mpi2SCSITaskManagementRequest_t *tm_request =
820 (Mpi2SCSITaskManagementRequest_t *)mpi_request;
821 mutex_unlock(&ioc->tm_cmds.mutex);
822 mpt2sas_scsih_clear_tm_flag(ioc, le16_to_cpu(
823 tm_request->DevHandle));
824 } else if ((mpi_request->Function == MPI2_FUNCTION_SMP_PASSTHROUGH ||
825 mpi_request->Function == MPI2_FUNCTION_SAS_IO_UNIT_CONTROL) &&
826 ioc->ioc_link_reset_in_progress) {
827 ioc->ioc_link_reset_in_progress = 0;
828 ioc->ignore_loginfos = 0;
829 }
830 if (!(ioc->ctl_cmds.status & MPT2_CMD_COMPLETE)) {
831 printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name,
832 __func__);
833 _debug_dump_mf(mpi_request, karg.data_sge_offset);
834 if (!(ioc->ctl_cmds.status & MPT2_CMD_RESET))
835 issue_reset = 1;
836 goto issue_host_reset;
837 }
838
839 mpi_reply = ioc->ctl_cmds.reply;
840 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
841
842 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
843 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_TASK_MGMT &&
844 (ioc->logging_level & MPT_DEBUG_TM)) {
845 Mpi2SCSITaskManagementReply_t *tm_reply =
846 (Mpi2SCSITaskManagementReply_t *)mpi_reply;
847
848 printk(MPT2SAS_DEBUG_FMT "TASK_MGMT: "
849 "IOCStatus(0x%04x), IOCLogInfo(0x%08x), "
850 "TerminationCount(0x%08x)\n", ioc->name,
851 tm_reply->IOCStatus, tm_reply->IOCLogInfo,
852 tm_reply->TerminationCount);
853 }
854 #endif
855 /* copy out xdata to user */
856 if (data_in_sz) {
857 if (copy_to_user(karg.data_in_buf_ptr, data_in,
858 data_in_sz)) {
859 printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
860 __LINE__, __func__);
861 ret = -ENODATA;
862 goto out;
863 }
864 }
865
866 /* copy out reply message frame to user */
867 if (karg.max_reply_bytes) {
868 sz = min_t(u32, karg.max_reply_bytes, ioc->reply_sz);
869 if (copy_to_user(karg.reply_frame_buf_ptr, ioc->ctl_cmds.reply,
870 sz)) {
871 printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
872 __LINE__, __func__);
873 ret = -ENODATA;
874 goto out;
875 }
876 }
877
878 /* copy out sense to user */
879 if (karg.max_sense_bytes && (mpi_request->Function ==
880 MPI2_FUNCTION_SCSI_IO_REQUEST || mpi_request->Function ==
881 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) {
882 sz = min_t(u32, karg.max_sense_bytes, SCSI_SENSE_BUFFERSIZE);
883 if (copy_to_user(karg.sense_data_ptr, priv_sense, sz)) {
884 printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
885 __LINE__, __func__);
886 ret = -ENODATA;
887 goto out;
888 }
889 }
890
891 issue_host_reset:
892 if (issue_reset) {
893 if ((mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
894 mpi_request->Function ==
895 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) {
896 printk(MPT2SAS_INFO_FMT "issue target reset: handle "
897 "= (0x%04x)\n", ioc->name,
898 mpi_request->FunctionDependent1);
899 mpt2sas_halt_firmware(ioc);
900 mutex_lock(&ioc->tm_cmds.mutex);
901 mpt2sas_scsih_issue_tm(ioc,
902 mpi_request->FunctionDependent1, 0,
903 MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 10);
904 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
905 mutex_unlock(&ioc->tm_cmds.mutex);
906 } else
907 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
908 FORCE_BIG_HAMMER);
909 }
910
911 out:
912
913 /* free memory associated with sg buffers */
914 if (data_in)
915 pci_free_consistent(ioc->pdev, data_in_sz, data_in,
916 data_in_dma);
917
918 if (data_out)
919 pci_free_consistent(ioc->pdev, data_out_sz, data_out,
920 data_out_dma);
921
922 ioc->ctl_cmds.status = MPT2_CMD_NOT_USED;
923 mutex_unlock(&ioc->ctl_cmds.mutex);
924 return ret;
925 }
926
927 /**
928 * _ctl_getiocinfo - main handler for MPT2IOCINFO opcode
929 * @arg - user space buffer containing ioctl content
930 */
931 static long
932 _ctl_getiocinfo(void __user *arg)
933 {
934 struct mpt2_ioctl_iocinfo karg;
935 struct MPT2SAS_ADAPTER *ioc;
936 u8 revision;
937
938 if (copy_from_user(&karg, arg, sizeof(karg))) {
939 printk(KERN_ERR "failure at %s:%d/%s()!\n",
940 __FILE__, __LINE__, __func__);
941 return -EFAULT;
942 }
943 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
944 return -ENODEV;
945
946 dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name,
947 __func__));
948
949 memset(&karg, 0 , sizeof(karg));
950 karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2;
951 if (ioc->pfacts)
952 karg.port_number = ioc->pfacts[0].PortNumber;
953 pci_read_config_byte(ioc->pdev, PCI_CLASS_REVISION, &revision);
954 karg.hw_rev = revision;
955 karg.pci_id = ioc->pdev->device;
956 karg.subsystem_device = ioc->pdev->subsystem_device;
957 karg.subsystem_vendor = ioc->pdev->subsystem_vendor;
958 karg.pci_information.u.bits.bus = ioc->pdev->bus->number;
959 karg.pci_information.u.bits.device = PCI_SLOT(ioc->pdev->devfn);
960 karg.pci_information.u.bits.function = PCI_FUNC(ioc->pdev->devfn);
961 karg.pci_information.segment_id = pci_domain_nr(ioc->pdev->bus);
962 karg.firmware_version = ioc->facts.FWVersion.Word;
963 strcpy(karg.driver_version, MPT2SAS_DRIVER_NAME);
964 strcat(karg.driver_version, "-");
965 strcat(karg.driver_version, MPT2SAS_DRIVER_VERSION);
966 karg.bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
967
968 if (copy_to_user(arg, &karg, sizeof(karg))) {
969 printk(KERN_ERR "failure at %s:%d/%s()!\n",
970 __FILE__, __LINE__, __func__);
971 return -EFAULT;
972 }
973 return 0;
974 }
975
976 /**
977 * _ctl_eventquery - main handler for MPT2EVENTQUERY opcode
978 * @arg - user space buffer containing ioctl content
979 */
980 static long
981 _ctl_eventquery(void __user *arg)
982 {
983 struct mpt2_ioctl_eventquery karg;
984 struct MPT2SAS_ADAPTER *ioc;
985
986 if (copy_from_user(&karg, arg, sizeof(karg))) {
987 printk(KERN_ERR "failure at %s:%d/%s()!\n",
988 __FILE__, __LINE__, __func__);
989 return -EFAULT;
990 }
991 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
992 return -ENODEV;
993
994 dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name,
995 __func__));
996
997 karg.event_entries = MPT2SAS_CTL_EVENT_LOG_SIZE;
998 memcpy(karg.event_types, ioc->event_type,
999 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1000
1001 if (copy_to_user(arg, &karg, sizeof(karg))) {
1002 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1003 __FILE__, __LINE__, __func__);
1004 return -EFAULT;
1005 }
1006 return 0;
1007 }
1008
1009 /**
1010 * _ctl_eventenable - main handler for MPT2EVENTENABLE opcode
1011 * @arg - user space buffer containing ioctl content
1012 */
1013 static long
1014 _ctl_eventenable(void __user *arg)
1015 {
1016 struct mpt2_ioctl_eventenable karg;
1017 struct MPT2SAS_ADAPTER *ioc;
1018
1019 if (copy_from_user(&karg, arg, sizeof(karg))) {
1020 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1021 __FILE__, __LINE__, __func__);
1022 return -EFAULT;
1023 }
1024 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
1025 return -ENODEV;
1026
1027 dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name,
1028 __func__));
1029
1030 if (ioc->event_log)
1031 return 0;
1032 memcpy(ioc->event_type, karg.event_types,
1033 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1034 mpt2sas_base_validate_event_type(ioc, ioc->event_type);
1035
1036 /* initialize event_log */
1037 ioc->event_context = 0;
1038 ioc->aen_event_read_flag = 0;
1039 ioc->event_log = kcalloc(MPT2SAS_CTL_EVENT_LOG_SIZE,
1040 sizeof(struct MPT2_IOCTL_EVENTS), GFP_KERNEL);
1041 if (!ioc->event_log) {
1042 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1043 __FILE__, __LINE__, __func__);
1044 return -ENOMEM;
1045 }
1046 return 0;
1047 }
1048
1049 /**
1050 * _ctl_eventreport - main handler for MPT2EVENTREPORT opcode
1051 * @arg - user space buffer containing ioctl content
1052 */
1053 static long
1054 _ctl_eventreport(void __user *arg)
1055 {
1056 struct mpt2_ioctl_eventreport karg;
1057 struct MPT2SAS_ADAPTER *ioc;
1058 u32 number_bytes, max_events, max;
1059 struct mpt2_ioctl_eventreport __user *uarg = arg;
1060
1061 if (copy_from_user(&karg, arg, sizeof(karg))) {
1062 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1063 __FILE__, __LINE__, __func__);
1064 return -EFAULT;
1065 }
1066 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
1067 return -ENODEV;
1068
1069 dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name,
1070 __func__));
1071
1072 number_bytes = karg.hdr.max_data_size -
1073 sizeof(struct mpt2_ioctl_header);
1074 max_events = number_bytes/sizeof(struct MPT2_IOCTL_EVENTS);
1075 max = min_t(u32, MPT2SAS_CTL_EVENT_LOG_SIZE, max_events);
1076
1077 /* If fewer than 1 event is requested, there must have
1078 * been some type of error.
1079 */
1080 if (!max || !ioc->event_log)
1081 return -ENODATA;
1082
1083 number_bytes = max * sizeof(struct MPT2_IOCTL_EVENTS);
1084 if (copy_to_user(uarg->event_data, ioc->event_log, number_bytes)) {
1085 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1086 __FILE__, __LINE__, __func__);
1087 return -EFAULT;
1088 }
1089
1090 /* reset flag so SIGIO can restart */
1091 ioc->aen_event_read_flag = 0;
1092 return 0;
1093 }
1094
1095 /**
1096 * _ctl_do_reset - main handler for MPT2HARDRESET opcode
1097 * @arg - user space buffer containing ioctl content
1098 */
1099 static long
1100 _ctl_do_reset(void __user *arg)
1101 {
1102 struct mpt2_ioctl_diag_reset karg;
1103 struct MPT2SAS_ADAPTER *ioc;
1104 int retval;
1105
1106 if (copy_from_user(&karg, arg, sizeof(karg))) {
1107 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1108 __FILE__, __LINE__, __func__);
1109 return -EFAULT;
1110 }
1111 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
1112 return -ENODEV;
1113
1114 dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name,
1115 __func__));
1116
1117 retval = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1118 FORCE_BIG_HAMMER);
1119 printk(MPT2SAS_INFO_FMT "host reset: %s\n",
1120 ioc->name, ((!retval) ? "SUCCESS" : "FAILED"));
1121 return 0;
1122 }
1123
1124 /**
1125 * _ctl_btdh_search_sas_device - searching for sas device
1126 * @ioc: per adapter object
1127 * @btdh: btdh ioctl payload
1128 */
1129 static int
1130 _ctl_btdh_search_sas_device(struct MPT2SAS_ADAPTER *ioc,
1131 struct mpt2_ioctl_btdh_mapping *btdh)
1132 {
1133 struct _sas_device *sas_device;
1134 unsigned long flags;
1135 int rc = 0;
1136
1137 if (list_empty(&ioc->sas_device_list))
1138 return rc;
1139
1140 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1141 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
1142 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1143 btdh->handle == sas_device->handle) {
1144 btdh->bus = sas_device->channel;
1145 btdh->id = sas_device->id;
1146 rc = 1;
1147 goto out;
1148 } else if (btdh->bus == sas_device->channel && btdh->id ==
1149 sas_device->id && btdh->handle == 0xFFFF) {
1150 btdh->handle = sas_device->handle;
1151 rc = 1;
1152 goto out;
1153 }
1154 }
1155 out:
1156 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1157 return rc;
1158 }
1159
1160 /**
1161 * _ctl_btdh_search_raid_device - searching for raid device
1162 * @ioc: per adapter object
1163 * @btdh: btdh ioctl payload
1164 */
1165 static int
1166 _ctl_btdh_search_raid_device(struct MPT2SAS_ADAPTER *ioc,
1167 struct mpt2_ioctl_btdh_mapping *btdh)
1168 {
1169 struct _raid_device *raid_device;
1170 unsigned long flags;
1171 int rc = 0;
1172
1173 if (list_empty(&ioc->raid_device_list))
1174 return rc;
1175
1176 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1177 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
1178 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1179 btdh->handle == raid_device->handle) {
1180 btdh->bus = raid_device->channel;
1181 btdh->id = raid_device->id;
1182 rc = 1;
1183 goto out;
1184 } else if (btdh->bus == raid_device->channel && btdh->id ==
1185 raid_device->id && btdh->handle == 0xFFFF) {
1186 btdh->handle = raid_device->handle;
1187 rc = 1;
1188 goto out;
1189 }
1190 }
1191 out:
1192 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1193 return rc;
1194 }
1195
1196 /**
1197 * _ctl_btdh_mapping - main handler for MPT2BTDHMAPPING opcode
1198 * @arg - user space buffer containing ioctl content
1199 */
1200 static long
1201 _ctl_btdh_mapping(void __user *arg)
1202 {
1203 struct mpt2_ioctl_btdh_mapping karg;
1204 struct MPT2SAS_ADAPTER *ioc;
1205 int rc;
1206
1207 if (copy_from_user(&karg, arg, sizeof(karg))) {
1208 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1209 __FILE__, __LINE__, __func__);
1210 return -EFAULT;
1211 }
1212 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
1213 return -ENODEV;
1214
1215 dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
1216 __func__));
1217
1218 rc = _ctl_btdh_search_sas_device(ioc, &karg);
1219 if (!rc)
1220 _ctl_btdh_search_raid_device(ioc, &karg);
1221
1222 if (copy_to_user(arg, &karg, sizeof(karg))) {
1223 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1224 __FILE__, __LINE__, __func__);
1225 return -EFAULT;
1226 }
1227 return 0;
1228 }
1229
1230 /**
1231 * _ctl_diag_capability - return diag buffer capability
1232 * @ioc: per adapter object
1233 * @buffer_type: specifies either TRACE or SNAPSHOT
1234 *
1235 * returns 1 when diag buffer support is enabled in firmware
1236 */
1237 static u8
1238 _ctl_diag_capability(struct MPT2SAS_ADAPTER *ioc, u8 buffer_type)
1239 {
1240 u8 rc = 0;
1241
1242 switch (buffer_type) {
1243 case MPI2_DIAG_BUF_TYPE_TRACE:
1244 if (ioc->facts.IOCCapabilities &
1245 MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER)
1246 rc = 1;
1247 break;
1248 case MPI2_DIAG_BUF_TYPE_SNAPSHOT:
1249 if (ioc->facts.IOCCapabilities &
1250 MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER)
1251 rc = 1;
1252 break;
1253 }
1254
1255 return rc;
1256 }
1257
1258 /**
1259 * _ctl_diag_register - application register with driver
1260 * @arg - user space buffer containing ioctl content
1261 * @state - NON_BLOCKING or BLOCKING
1262 *
1263 * This will allow the driver to setup any required buffers that will be
1264 * needed by firmware to communicate with the driver.
1265 */
1266 static long
1267 _ctl_diag_register(void __user *arg, enum block_state state)
1268 {
1269 struct mpt2_diag_register karg;
1270 struct MPT2SAS_ADAPTER *ioc;
1271 int rc, i;
1272 void *request_data = NULL;
1273 dma_addr_t request_data_dma;
1274 u32 request_data_sz = 0;
1275 Mpi2DiagBufferPostRequest_t *mpi_request;
1276 Mpi2DiagBufferPostReply_t *mpi_reply;
1277 u8 buffer_type;
1278 unsigned long timeleft;
1279 u16 smid;
1280 u16 ioc_status;
1281 u8 issue_reset = 0;
1282
1283 if (copy_from_user(&karg, arg, sizeof(karg))) {
1284 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1285 __FILE__, __LINE__, __func__);
1286 return -EFAULT;
1287 }
1288 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
1289 return -ENODEV;
1290
1291 dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
1292 __func__));
1293
1294 buffer_type = karg.buffer_type;
1295 if (!_ctl_diag_capability(ioc, buffer_type)) {
1296 printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for "
1297 "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
1298 return -EPERM;
1299 }
1300
1301 if (ioc->diag_buffer_status[buffer_type] &
1302 MPT2_DIAG_BUFFER_IS_REGISTERED) {
1303 printk(MPT2SAS_ERR_FMT "%s: already has a registered "
1304 "buffer for buffer_type(0x%02x)\n", ioc->name, __func__,
1305 buffer_type);
1306 return -EINVAL;
1307 }
1308
1309 if (karg.requested_buffer_size % 4) {
1310 printk(MPT2SAS_ERR_FMT "%s: the requested_buffer_size "
1311 "is not 4 byte aligned\n", ioc->name, __func__);
1312 return -EINVAL;
1313 }
1314
1315 if (state == NON_BLOCKING && !mutex_trylock(&ioc->ctl_cmds.mutex))
1316 return -EAGAIN;
1317 else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex))
1318 return -ERESTARTSYS;
1319
1320 if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) {
1321 printk(MPT2SAS_ERR_FMT "%s: ctl_cmd in use\n",
1322 ioc->name, __func__);
1323 rc = -EAGAIN;
1324 goto out;
1325 }
1326
1327 smid = mpt2sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1328 if (!smid) {
1329 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
1330 ioc->name, __func__);
1331 rc = -EAGAIN;
1332 goto out;
1333 }
1334
1335 rc = 0;
1336 ioc->ctl_cmds.status = MPT2_CMD_PENDING;
1337 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1338 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
1339 ioc->ctl_cmds.smid = smid;
1340
1341 request_data = ioc->diag_buffer[buffer_type];
1342 request_data_sz = karg.requested_buffer_size;
1343 ioc->unique_id[buffer_type] = karg.unique_id;
1344 ioc->diag_buffer_status[buffer_type] = 0;
1345 memcpy(ioc->product_specific[buffer_type], karg.product_specific,
1346 MPT2_PRODUCT_SPECIFIC_DWORDS);
1347 ioc->diagnostic_flags[buffer_type] = karg.diagnostic_flags;
1348
1349 if (request_data) {
1350 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1351 if (request_data_sz != ioc->diag_buffer_sz[buffer_type]) {
1352 pci_free_consistent(ioc->pdev,
1353 ioc->diag_buffer_sz[buffer_type],
1354 request_data, request_data_dma);
1355 request_data = NULL;
1356 }
1357 }
1358
1359 if (request_data == NULL) {
1360 ioc->diag_buffer_sz[buffer_type] = 0;
1361 ioc->diag_buffer_dma[buffer_type] = 0;
1362 request_data = pci_alloc_consistent(
1363 ioc->pdev, request_data_sz, &request_data_dma);
1364 if (request_data == NULL) {
1365 printk(MPT2SAS_ERR_FMT "%s: failed allocating memory"
1366 " for diag buffers, requested size(%d)\n",
1367 ioc->name, __func__, request_data_sz);
1368 mpt2sas_base_free_smid(ioc, smid);
1369 return -ENOMEM;
1370 }
1371 ioc->diag_buffer[buffer_type] = request_data;
1372 ioc->diag_buffer_sz[buffer_type] = request_data_sz;
1373 ioc->diag_buffer_dma[buffer_type] = request_data_dma;
1374 }
1375
1376 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
1377 mpi_request->BufferType = karg.buffer_type;
1378 mpi_request->Flags = cpu_to_le32(karg.diagnostic_flags);
1379 mpi_request->BufferAddress = cpu_to_le64(request_data_dma);
1380 mpi_request->BufferLength = cpu_to_le32(request_data_sz);
1381 mpi_request->VF_ID = 0; /* TODO */
1382 mpi_request->VP_ID = 0;
1383
1384 dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: diag_buffer(0x%p), "
1385 "dma(0x%llx), sz(%d)\n", ioc->name, __func__, request_data,
1386 (unsigned long long)request_data_dma, mpi_request->BufferLength));
1387
1388 for (i = 0; i < MPT2_PRODUCT_SPECIFIC_DWORDS; i++)
1389 mpi_request->ProductSpecific[i] =
1390 cpu_to_le32(ioc->product_specific[buffer_type][i]);
1391
1392 mpt2sas_base_put_smid_default(ioc, smid);
1393 init_completion(&ioc->ctl_cmds.done);
1394 timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
1395 MPT2_IOCTL_DEFAULT_TIMEOUT*HZ);
1396
1397 if (!(ioc->ctl_cmds.status & MPT2_CMD_COMPLETE)) {
1398 printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name,
1399 __func__);
1400 _debug_dump_mf(mpi_request,
1401 sizeof(Mpi2DiagBufferPostRequest_t)/4);
1402 if (!(ioc->ctl_cmds.status & MPT2_CMD_RESET))
1403 issue_reset = 1;
1404 goto issue_host_reset;
1405 }
1406
1407 /* process the completed Reply Message Frame */
1408 if ((ioc->ctl_cmds.status & MPT2_CMD_REPLY_VALID) == 0) {
1409 printk(MPT2SAS_ERR_FMT "%s: no reply message\n",
1410 ioc->name, __func__);
1411 rc = -EFAULT;
1412 goto out;
1413 }
1414
1415 mpi_reply = ioc->ctl_cmds.reply;
1416 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1417
1418 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1419 ioc->diag_buffer_status[buffer_type] |=
1420 MPT2_DIAG_BUFFER_IS_REGISTERED;
1421 dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: success\n",
1422 ioc->name, __func__));
1423 } else {
1424 printk(MPT2SAS_DEBUG_FMT "%s: ioc_status(0x%04x) "
1425 "log_info(0x%08x)\n", ioc->name, __func__,
1426 ioc_status, mpi_reply->IOCLogInfo);
1427 rc = -EFAULT;
1428 }
1429
1430 issue_host_reset:
1431 if (issue_reset)
1432 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1433 FORCE_BIG_HAMMER);
1434
1435 out:
1436
1437 if (rc && request_data)
1438 pci_free_consistent(ioc->pdev, request_data_sz,
1439 request_data, request_data_dma);
1440
1441 ioc->ctl_cmds.status = MPT2_CMD_NOT_USED;
1442 mutex_unlock(&ioc->ctl_cmds.mutex);
1443 return rc;
1444 }
1445
1446 /**
1447 * _ctl_diag_unregister - application unregister with driver
1448 * @arg - user space buffer containing ioctl content
1449 *
1450 * This will allow the driver to cleanup any memory allocated for diag
1451 * messages and to free up any resources.
1452 */
1453 static long
1454 _ctl_diag_unregister(void __user *arg)
1455 {
1456 struct mpt2_diag_unregister karg;
1457 struct MPT2SAS_ADAPTER *ioc;
1458 void *request_data;
1459 dma_addr_t request_data_dma;
1460 u32 request_data_sz;
1461 u8 buffer_type;
1462
1463 if (copy_from_user(&karg, arg, sizeof(karg))) {
1464 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1465 __FILE__, __LINE__, __func__);
1466 return -EFAULT;
1467 }
1468 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
1469 return -ENODEV;
1470
1471 dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
1472 __func__));
1473
1474 buffer_type = karg.unique_id & 0x000000ff;
1475 if (!_ctl_diag_capability(ioc, buffer_type)) {
1476 printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for "
1477 "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
1478 return -EPERM;
1479 }
1480
1481 if ((ioc->diag_buffer_status[buffer_type] &
1482 MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) {
1483 printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) is not "
1484 "registered\n", ioc->name, __func__, buffer_type);
1485 return -EINVAL;
1486 }
1487 if ((ioc->diag_buffer_status[buffer_type] &
1488 MPT2_DIAG_BUFFER_IS_RELEASED) == 0) {
1489 printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) has not been "
1490 "released\n", ioc->name, __func__, buffer_type);
1491 return -EINVAL;
1492 }
1493
1494 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1495 printk(MPT2SAS_ERR_FMT "%s: unique_id(0x%08x) is not "
1496 "registered\n", ioc->name, __func__, karg.unique_id);
1497 return -EINVAL;
1498 }
1499
1500 request_data = ioc->diag_buffer[buffer_type];
1501 if (!request_data) {
1502 printk(MPT2SAS_ERR_FMT "%s: doesn't have memory allocated for "
1503 "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
1504 return -ENOMEM;
1505 }
1506
1507 request_data_sz = ioc->diag_buffer_sz[buffer_type];
1508 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1509 pci_free_consistent(ioc->pdev, request_data_sz,
1510 request_data, request_data_dma);
1511 ioc->diag_buffer[buffer_type] = NULL;
1512 ioc->diag_buffer_status[buffer_type] = 0;
1513 return 0;
1514 }
1515
1516 /**
1517 * _ctl_diag_query - query relevant info associated with diag buffers
1518 * @arg - user space buffer containing ioctl content
1519 *
1520 * The application will send only buffer_type and unique_id. Driver will
1521 * inspect unique_id first, if valid, fill in all the info. If unique_id is
1522 * 0x00, the driver will return info specified by Buffer Type.
1523 */
1524 static long
1525 _ctl_diag_query(void __user *arg)
1526 {
1527 struct mpt2_diag_query karg;
1528 struct MPT2SAS_ADAPTER *ioc;
1529 void *request_data;
1530 int i;
1531 u8 buffer_type;
1532
1533 if (copy_from_user(&karg, arg, sizeof(karg))) {
1534 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1535 __FILE__, __LINE__, __func__);
1536 return -EFAULT;
1537 }
1538 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
1539 return -ENODEV;
1540
1541 dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
1542 __func__));
1543
1544 karg.application_flags = 0;
1545 buffer_type = karg.buffer_type;
1546
1547 if (!_ctl_diag_capability(ioc, buffer_type)) {
1548 printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for "
1549 "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
1550 return -EPERM;
1551 }
1552
1553 if ((ioc->diag_buffer_status[buffer_type] &
1554 MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) {
1555 printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) is not "
1556 "registered\n", ioc->name, __func__, buffer_type);
1557 return -EINVAL;
1558 }
1559
1560 if (karg.unique_id & 0xffffff00) {
1561 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1562 printk(MPT2SAS_ERR_FMT "%s: unique_id(0x%08x) is not "
1563 "registered\n", ioc->name, __func__,
1564 karg.unique_id);
1565 return -EINVAL;
1566 }
1567 }
1568
1569 request_data = ioc->diag_buffer[buffer_type];
1570 if (!request_data) {
1571 printk(MPT2SAS_ERR_FMT "%s: doesn't have buffer for "
1572 "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
1573 return -ENOMEM;
1574 }
1575
1576 if (ioc->diag_buffer_status[buffer_type] & MPT2_DIAG_BUFFER_IS_RELEASED)
1577 karg.application_flags = (MPT2_APP_FLAGS_APP_OWNED |
1578 MPT2_APP_FLAGS_BUFFER_VALID);
1579 else
1580 karg.application_flags = (MPT2_APP_FLAGS_APP_OWNED |
1581 MPT2_APP_FLAGS_BUFFER_VALID |
1582 MPT2_APP_FLAGS_FW_BUFFER_ACCESS);
1583
1584 for (i = 0; i < MPT2_PRODUCT_SPECIFIC_DWORDS; i++)
1585 karg.product_specific[i] =
1586 ioc->product_specific[buffer_type][i];
1587
1588 karg.total_buffer_size = ioc->diag_buffer_sz[buffer_type];
1589 karg.driver_added_buffer_size = 0;
1590 karg.unique_id = ioc->unique_id[buffer_type];
1591 karg.diagnostic_flags = ioc->diagnostic_flags[buffer_type];
1592
1593 if (copy_to_user(arg, &karg, sizeof(struct mpt2_diag_query))) {
1594 printk(MPT2SAS_ERR_FMT "%s: unable to write mpt2_diag_query "
1595 "data @ %p\n", ioc->name, __func__, arg);
1596 return -EFAULT;
1597 }
1598 return 0;
1599 }
1600
1601 /**
1602 * _ctl_send_release - Diag Release Message
1603 * @ioc: per adapter object
1604 * @buffer_type - specifies either TRACE or SNAPSHOT
1605 * @issue_reset - specifies whether host reset is required.
1606 *
1607 */
1608 static int
1609 _ctl_send_release(struct MPT2SAS_ADAPTER *ioc, u8 buffer_type, u8 *issue_reset)
1610 {
1611 Mpi2DiagReleaseRequest_t *mpi_request;
1612 Mpi2DiagReleaseReply_t *mpi_reply;
1613 u16 smid;
1614 u16 ioc_status;
1615 u32 ioc_state;
1616 int rc;
1617 unsigned long timeleft;
1618
1619 dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
1620 __func__));
1621
1622 rc = 0;
1623 *issue_reset = 0;
1624
1625 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
1626 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1627 dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
1628 "skipping due to FAULT state\n", ioc->name,
1629 __func__));
1630 rc = -EAGAIN;
1631 goto out;
1632 }
1633
1634 if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) {
1635 printk(MPT2SAS_ERR_FMT "%s: ctl_cmd in use\n",
1636 ioc->name, __func__);
1637 rc = -EAGAIN;
1638 goto out;
1639 }
1640
1641 smid = mpt2sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1642 if (!smid) {
1643 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
1644 ioc->name, __func__);
1645 rc = -EAGAIN;
1646 goto out;
1647 }
1648
1649 ioc->ctl_cmds.status = MPT2_CMD_PENDING;
1650 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1651 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
1652 ioc->ctl_cmds.smid = smid;
1653
1654 mpi_request->Function = MPI2_FUNCTION_DIAG_RELEASE;
1655 mpi_request->BufferType = buffer_type;
1656 mpi_request->VF_ID = 0; /* TODO */
1657 mpi_request->VP_ID = 0;
1658
1659 mpt2sas_base_put_smid_default(ioc, smid);
1660 init_completion(&ioc->ctl_cmds.done);
1661 timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
1662 MPT2_IOCTL_DEFAULT_TIMEOUT*HZ);
1663
1664 if (!(ioc->ctl_cmds.status & MPT2_CMD_COMPLETE)) {
1665 printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name,
1666 __func__);
1667 _debug_dump_mf(mpi_request,
1668 sizeof(Mpi2DiagReleaseRequest_t)/4);
1669 if (!(ioc->ctl_cmds.status & MPT2_CMD_RESET))
1670 *issue_reset = 1;
1671 rc = -EFAULT;
1672 goto out;
1673 }
1674
1675 /* process the completed Reply Message Frame */
1676 if ((ioc->ctl_cmds.status & MPT2_CMD_REPLY_VALID) == 0) {
1677 printk(MPT2SAS_ERR_FMT "%s: no reply message\n",
1678 ioc->name, __func__);
1679 rc = -EFAULT;
1680 goto out;
1681 }
1682
1683 mpi_reply = ioc->ctl_cmds.reply;
1684 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1685
1686 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1687 ioc->diag_buffer_status[buffer_type] |=
1688 MPT2_DIAG_BUFFER_IS_RELEASED;
1689 dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: success\n",
1690 ioc->name, __func__));
1691 } else {
1692 printk(MPT2SAS_DEBUG_FMT "%s: ioc_status(0x%04x) "
1693 "log_info(0x%08x)\n", ioc->name, __func__,
1694 ioc_status, mpi_reply->IOCLogInfo);
1695 rc = -EFAULT;
1696 }
1697
1698 out:
1699 ioc->ctl_cmds.status = MPT2_CMD_NOT_USED;
1700 return rc;
1701 }
1702
1703 /**
1704 * _ctl_diag_release - request to send Diag Release Message to firmware
1705 * @arg - user space buffer containing ioctl content
1706 * @state - NON_BLOCKING or BLOCKING
1707 *
1708 * This allows ownership of the specified buffer to returned to the driver,
1709 * allowing an application to read the buffer without fear that firmware is
1710 * overwritting information in the buffer.
1711 */
1712 static long
1713 _ctl_diag_release(void __user *arg, enum block_state state)
1714 {
1715 struct mpt2_diag_release karg;
1716 struct MPT2SAS_ADAPTER *ioc;
1717 void *request_data;
1718 int rc;
1719 u8 buffer_type;
1720 u8 issue_reset = 0;
1721
1722 if (copy_from_user(&karg, arg, sizeof(karg))) {
1723 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1724 __FILE__, __LINE__, __func__);
1725 return -EFAULT;
1726 }
1727 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
1728 return -ENODEV;
1729
1730 dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
1731 __func__));
1732
1733 buffer_type = karg.unique_id & 0x000000ff;
1734 if (!_ctl_diag_capability(ioc, buffer_type)) {
1735 printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for "
1736 "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
1737 return -EPERM;
1738 }
1739
1740 if ((ioc->diag_buffer_status[buffer_type] &
1741 MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) {
1742 printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) is not "
1743 "registered\n", ioc->name, __func__, buffer_type);
1744 return -EINVAL;
1745 }
1746
1747 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1748 printk(MPT2SAS_ERR_FMT "%s: unique_id(0x%08x) is not "
1749 "registered\n", ioc->name, __func__, karg.unique_id);
1750 return -EINVAL;
1751 }
1752
1753 if (ioc->diag_buffer_status[buffer_type] &
1754 MPT2_DIAG_BUFFER_IS_RELEASED) {
1755 printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) "
1756 "is already released\n", ioc->name, __func__,
1757 buffer_type);
1758 return 0;
1759 }
1760
1761 request_data = ioc->diag_buffer[buffer_type];
1762
1763 if (!request_data) {
1764 printk(MPT2SAS_ERR_FMT "%s: doesn't have memory allocated for "
1765 "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
1766 return -ENOMEM;
1767 }
1768
1769 /* buffers were released by due to host reset */
1770 if ((ioc->diag_buffer_status[buffer_type] &
1771 MPT2_DIAG_BUFFER_IS_DIAG_RESET)) {
1772 ioc->diag_buffer_status[buffer_type] |=
1773 MPT2_DIAG_BUFFER_IS_RELEASED;
1774 ioc->diag_buffer_status[buffer_type] &=
1775 ~MPT2_DIAG_BUFFER_IS_DIAG_RESET;
1776 printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) "
1777 "was released due to host reset\n", ioc->name, __func__,
1778 buffer_type);
1779 return 0;
1780 }
1781
1782 if (state == NON_BLOCKING && !mutex_trylock(&ioc->ctl_cmds.mutex))
1783 return -EAGAIN;
1784 else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex))
1785 return -ERESTARTSYS;
1786
1787 rc = _ctl_send_release(ioc, buffer_type, &issue_reset);
1788
1789 if (issue_reset)
1790 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1791 FORCE_BIG_HAMMER);
1792
1793 mutex_unlock(&ioc->ctl_cmds.mutex);
1794 return rc;
1795 }
1796
1797 /**
1798 * _ctl_diag_read_buffer - request for copy of the diag buffer
1799 * @arg - user space buffer containing ioctl content
1800 * @state - NON_BLOCKING or BLOCKING
1801 */
1802 static long
1803 _ctl_diag_read_buffer(void __user *arg, enum block_state state)
1804 {
1805 struct mpt2_diag_read_buffer karg;
1806 struct mpt2_diag_read_buffer __user *uarg = arg;
1807 struct MPT2SAS_ADAPTER *ioc;
1808 void *request_data, *diag_data;
1809 Mpi2DiagBufferPostRequest_t *mpi_request;
1810 Mpi2DiagBufferPostReply_t *mpi_reply;
1811 int rc, i;
1812 u8 buffer_type;
1813 unsigned long timeleft;
1814 u16 smid;
1815 u16 ioc_status;
1816 u8 issue_reset = 0;
1817
1818 if (copy_from_user(&karg, arg, sizeof(karg))) {
1819 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1820 __FILE__, __LINE__, __func__);
1821 return -EFAULT;
1822 }
1823 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
1824 return -ENODEV;
1825
1826 dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
1827 __func__));
1828
1829 buffer_type = karg.unique_id & 0x000000ff;
1830 if (!_ctl_diag_capability(ioc, buffer_type)) {
1831 printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for "
1832 "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
1833 return -EPERM;
1834 }
1835
1836 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1837 printk(MPT2SAS_ERR_FMT "%s: unique_id(0x%08x) is not "
1838 "registered\n", ioc->name, __func__, karg.unique_id);
1839 return -EINVAL;
1840 }
1841
1842 request_data = ioc->diag_buffer[buffer_type];
1843 if (!request_data) {
1844 printk(MPT2SAS_ERR_FMT "%s: doesn't have buffer for "
1845 "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
1846 return -ENOMEM;
1847 }
1848
1849 if ((karg.starting_offset % 4) || (karg.bytes_to_read % 4)) {
1850 printk(MPT2SAS_ERR_FMT "%s: either the starting_offset "
1851 "or bytes_to_read are not 4 byte aligned\n", ioc->name,
1852 __func__);
1853 return -EINVAL;
1854 }
1855
1856 diag_data = (void *)(request_data + karg.starting_offset);
1857 dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: diag_buffer(%p), "
1858 "offset(%d), sz(%d)\n", ioc->name, __func__,
1859 diag_data, karg.starting_offset, karg.bytes_to_read));
1860
1861 if (copy_to_user((void __user *)uarg->diagnostic_data,
1862 diag_data, karg.bytes_to_read)) {
1863 printk(MPT2SAS_ERR_FMT "%s: Unable to write "
1864 "mpt_diag_read_buffer_t data @ %p\n", ioc->name,
1865 __func__, diag_data);
1866 return -EFAULT;
1867 }
1868
1869 if ((karg.flags & MPT2_FLAGS_REREGISTER) == 0)
1870 return 0;
1871
1872 dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: Reregister "
1873 "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type));
1874 if ((ioc->diag_buffer_status[buffer_type] &
1875 MPT2_DIAG_BUFFER_IS_RELEASED) == 0) {
1876 dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
1877 "buffer_type(0x%02x) is still registered\n", ioc->name,
1878 __func__, buffer_type));
1879 return 0;
1880 }
1881 /* Get a free request frame and save the message context.
1882 */
1883 if (state == NON_BLOCKING && !mutex_trylock(&ioc->ctl_cmds.mutex))
1884 return -EAGAIN;
1885 else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex))
1886 return -ERESTARTSYS;
1887
1888 if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) {
1889 printk(MPT2SAS_ERR_FMT "%s: ctl_cmd in use\n",
1890 ioc->name, __func__);
1891 rc = -EAGAIN;
1892 goto out;
1893 }
1894
1895 smid = mpt2sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1896 if (!smid) {
1897 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
1898 ioc->name, __func__);
1899 rc = -EAGAIN;
1900 goto out;
1901 }
1902
1903 rc = 0;
1904 ioc->ctl_cmds.status = MPT2_CMD_PENDING;
1905 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1906 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
1907 ioc->ctl_cmds.smid = smid;
1908
1909 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
1910 mpi_request->BufferType = buffer_type;
1911 mpi_request->BufferLength =
1912 cpu_to_le32(ioc->diag_buffer_sz[buffer_type]);
1913 mpi_request->BufferAddress =
1914 cpu_to_le64(ioc->diag_buffer_dma[buffer_type]);
1915 for (i = 0; i < MPT2_PRODUCT_SPECIFIC_DWORDS; i++)
1916 mpi_request->ProductSpecific[i] =
1917 cpu_to_le32(ioc->product_specific[buffer_type][i]);
1918 mpi_request->VF_ID = 0; /* TODO */
1919 mpi_request->VP_ID = 0;
1920
1921 mpt2sas_base_put_smid_default(ioc, smid);
1922 init_completion(&ioc->ctl_cmds.done);
1923 timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
1924 MPT2_IOCTL_DEFAULT_TIMEOUT*HZ);
1925
1926 if (!(ioc->ctl_cmds.status & MPT2_CMD_COMPLETE)) {
1927 printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name,
1928 __func__);
1929 _debug_dump_mf(mpi_request,
1930 sizeof(Mpi2DiagBufferPostRequest_t)/4);
1931 if (!(ioc->ctl_cmds.status & MPT2_CMD_RESET))
1932 issue_reset = 1;
1933 goto issue_host_reset;
1934 }
1935
1936 /* process the completed Reply Message Frame */
1937 if ((ioc->ctl_cmds.status & MPT2_CMD_REPLY_VALID) == 0) {
1938 printk(MPT2SAS_ERR_FMT "%s: no reply message\n",
1939 ioc->name, __func__);
1940 rc = -EFAULT;
1941 goto out;
1942 }
1943
1944 mpi_reply = ioc->ctl_cmds.reply;
1945 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1946
1947 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1948 ioc->diag_buffer_status[buffer_type] |=
1949 MPT2_DIAG_BUFFER_IS_REGISTERED;
1950 dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: success\n",
1951 ioc->name, __func__));
1952 } else {
1953 printk(MPT2SAS_DEBUG_FMT "%s: ioc_status(0x%04x) "
1954 "log_info(0x%08x)\n", ioc->name, __func__,
1955 ioc_status, mpi_reply->IOCLogInfo);
1956 rc = -EFAULT;
1957 }
1958
1959 issue_host_reset:
1960 if (issue_reset)
1961 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1962 FORCE_BIG_HAMMER);
1963
1964 out:
1965
1966 ioc->ctl_cmds.status = MPT2_CMD_NOT_USED;
1967 mutex_unlock(&ioc->ctl_cmds.mutex);
1968 return rc;
1969 }
1970
1971 /**
1972 * _ctl_ioctl_main - main ioctl entry point
1973 * @file - (struct file)
1974 * @cmd - ioctl opcode
1975 * @arg -
1976 */
1977 static long
1978 _ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg)
1979 {
1980 enum block_state state;
1981 long ret = -EINVAL;
1982
1983 state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING :
1984 BLOCKING;
1985
1986 switch (cmd) {
1987 case MPT2IOCINFO:
1988 if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_iocinfo))
1989 ret = _ctl_getiocinfo(arg);
1990 break;
1991 case MPT2COMMAND:
1992 {
1993 struct mpt2_ioctl_command karg;
1994 struct mpt2_ioctl_command __user *uarg;
1995 struct MPT2SAS_ADAPTER *ioc;
1996
1997 if (copy_from_user(&karg, arg, sizeof(karg))) {
1998 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1999 __FILE__, __LINE__, __func__);
2000 return -EFAULT;
2001 }
2002
2003 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 ||
2004 !ioc)
2005 return -ENODEV;
2006
2007 if (ioc->shost_recovery)
2008 return -EAGAIN;
2009
2010 if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_command)) {
2011 uarg = arg;
2012 ret = _ctl_do_mpt_command(ioc, karg, &uarg->mf, state);
2013 }
2014 break;
2015 }
2016 case MPT2EVENTQUERY:
2017 if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_eventquery))
2018 ret = _ctl_eventquery(arg);
2019 break;
2020 case MPT2EVENTENABLE:
2021 if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_eventenable))
2022 ret = _ctl_eventenable(arg);
2023 break;
2024 case MPT2EVENTREPORT:
2025 ret = _ctl_eventreport(arg);
2026 break;
2027 case MPT2HARDRESET:
2028 if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_diag_reset))
2029 ret = _ctl_do_reset(arg);
2030 break;
2031 case MPT2BTDHMAPPING:
2032 if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_btdh_mapping))
2033 ret = _ctl_btdh_mapping(arg);
2034 break;
2035 case MPT2DIAGREGISTER:
2036 if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_register))
2037 ret = _ctl_diag_register(arg, state);
2038 break;
2039 case MPT2DIAGUNREGISTER:
2040 if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_unregister))
2041 ret = _ctl_diag_unregister(arg);
2042 break;
2043 case MPT2DIAGQUERY:
2044 if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_query))
2045 ret = _ctl_diag_query(arg);
2046 break;
2047 case MPT2DIAGRELEASE:
2048 if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_release))
2049 ret = _ctl_diag_release(arg, state);
2050 break;
2051 case MPT2DIAGREADBUFFER:
2052 if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_read_buffer))
2053 ret = _ctl_diag_read_buffer(arg, state);
2054 break;
2055 default:
2056 {
2057 struct mpt2_ioctl_command karg;
2058 struct MPT2SAS_ADAPTER *ioc;
2059
2060 if (copy_from_user(&karg, arg, sizeof(karg))) {
2061 printk(KERN_ERR "failure at %s:%d/%s()!\n",
2062 __FILE__, __LINE__, __func__);
2063 return -EFAULT;
2064 }
2065
2066 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 ||
2067 !ioc)
2068 return -ENODEV;
2069
2070 dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT
2071 "unsupported ioctl opcode(0x%08x)\n", ioc->name, cmd));
2072 break;
2073 }
2074 }
2075 return ret;
2076 }
2077
2078 /**
2079 * _ctl_ioctl - main ioctl entry point (unlocked)
2080 * @file - (struct file)
2081 * @cmd - ioctl opcode
2082 * @arg -
2083 */
2084 static long
2085 _ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2086 {
2087 long ret;
2088
2089 lock_kernel();
2090 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg);
2091 unlock_kernel();
2092 return ret;
2093 }
2094
2095 #ifdef CONFIG_COMPAT
2096 /**
2097 * _ctl_compat_mpt_command - convert 32bit pointers to 64bit.
2098 * @file - (struct file)
2099 * @cmd - ioctl opcode
2100 * @arg - (struct mpt2_ioctl_command32)
2101 *
2102 * MPT2COMMAND32 - Handle 32bit applications running on 64bit os.
2103 */
2104 static long
2105 _ctl_compat_mpt_command(struct file *file, unsigned cmd, unsigned long arg)
2106 {
2107 struct mpt2_ioctl_command32 karg32;
2108 struct mpt2_ioctl_command32 __user *uarg;
2109 struct mpt2_ioctl_command karg;
2110 struct MPT2SAS_ADAPTER *ioc;
2111 enum block_state state;
2112
2113 if (_IOC_SIZE(cmd) != sizeof(struct mpt2_ioctl_command32))
2114 return -EINVAL;
2115
2116 uarg = (struct mpt2_ioctl_command32 __user *) arg;
2117
2118 if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32))) {
2119 printk(KERN_ERR "failure at %s:%d/%s()!\n",
2120 __FILE__, __LINE__, __func__);
2121 return -EFAULT;
2122 }
2123 if (_ctl_verify_adapter(karg32.hdr.ioc_number, &ioc) == -1 || !ioc)
2124 return -ENODEV;
2125
2126 if (ioc->shost_recovery)
2127 return -EAGAIN;
2128
2129 memset(&karg, 0, sizeof(struct mpt2_ioctl_command));
2130 karg.hdr.ioc_number = karg32.hdr.ioc_number;
2131 karg.hdr.port_number = karg32.hdr.port_number;
2132 karg.hdr.max_data_size = karg32.hdr.max_data_size;
2133 karg.timeout = karg32.timeout;
2134 karg.max_reply_bytes = karg32.max_reply_bytes;
2135 karg.data_in_size = karg32.data_in_size;
2136 karg.data_out_size = karg32.data_out_size;
2137 karg.max_sense_bytes = karg32.max_sense_bytes;
2138 karg.data_sge_offset = karg32.data_sge_offset;
2139 memcpy(&karg.reply_frame_buf_ptr, &karg32.reply_frame_buf_ptr,
2140 sizeof(uint32_t));
2141 memcpy(&karg.data_in_buf_ptr, &karg32.data_in_buf_ptr,
2142 sizeof(uint32_t));
2143 memcpy(&karg.data_out_buf_ptr, &karg32.data_out_buf_ptr,
2144 sizeof(uint32_t));
2145 memcpy(&karg.sense_data_ptr, &karg32.sense_data_ptr,
2146 sizeof(uint32_t));
2147 state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING;
2148 return _ctl_do_mpt_command(ioc, karg, &uarg->mf, state);
2149 }
2150
2151 /**
2152 * _ctl_ioctl_compat - main ioctl entry point (compat)
2153 * @file -
2154 * @cmd -
2155 * @arg -
2156 *
2157 * This routine handles 32 bit applications in 64bit os.
2158 */
2159 static long
2160 _ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
2161 {
2162 long ret;
2163
2164 lock_kernel();
2165 if (cmd == MPT2COMMAND32)
2166 ret = _ctl_compat_mpt_command(file, cmd, arg);
2167 else
2168 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg);
2169 unlock_kernel();
2170 return ret;
2171 }
2172 #endif
2173
2174 /* scsi host attributes */
2175
2176 /**
2177 * _ctl_version_fw_show - firmware version
2178 * @cdev - pointer to embedded class device
2179 * @buf - the buffer returned
2180 *
2181 * A sysfs 'read-only' shost attribute.
2182 */
2183 static ssize_t
2184 _ctl_version_fw_show(struct device *cdev, struct device_attribute *attr,
2185 char *buf)
2186 {
2187 struct Scsi_Host *shost = class_to_shost(cdev);
2188 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2189
2190 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2191 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
2192 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
2193 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
2194 ioc->facts.FWVersion.Word & 0x000000FF);
2195 }
2196 static DEVICE_ATTR(version_fw, S_IRUGO, _ctl_version_fw_show, NULL);
2197
2198 /**
2199 * _ctl_version_bios_show - bios version
2200 * @cdev - pointer to embedded class device
2201 * @buf - the buffer returned
2202 *
2203 * A sysfs 'read-only' shost attribute.
2204 */
2205 static ssize_t
2206 _ctl_version_bios_show(struct device *cdev, struct device_attribute *attr,
2207 char *buf)
2208 {
2209 struct Scsi_Host *shost = class_to_shost(cdev);
2210 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2211
2212 u32 version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
2213
2214 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2215 (version & 0xFF000000) >> 24,
2216 (version & 0x00FF0000) >> 16,
2217 (version & 0x0000FF00) >> 8,
2218 version & 0x000000FF);
2219 }
2220 static DEVICE_ATTR(version_bios, S_IRUGO, _ctl_version_bios_show, NULL);
2221
2222 /**
2223 * _ctl_version_mpi_show - MPI (message passing interface) version
2224 * @cdev - pointer to embedded class device
2225 * @buf - the buffer returned
2226 *
2227 * A sysfs 'read-only' shost attribute.
2228 */
2229 static ssize_t
2230 _ctl_version_mpi_show(struct device *cdev, struct device_attribute *attr,
2231 char *buf)
2232 {
2233 struct Scsi_Host *shost = class_to_shost(cdev);
2234 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2235
2236 return snprintf(buf, PAGE_SIZE, "%03x.%02x\n",
2237 ioc->facts.MsgVersion, ioc->facts.HeaderVersion >> 8);
2238 }
2239 static DEVICE_ATTR(version_mpi, S_IRUGO, _ctl_version_mpi_show, NULL);
2240
2241 /**
2242 * _ctl_version_product_show - product name
2243 * @cdev - pointer to embedded class device
2244 * @buf - the buffer returned
2245 *
2246 * A sysfs 'read-only' shost attribute.
2247 */
2248 static ssize_t
2249 _ctl_version_product_show(struct device *cdev, struct device_attribute *attr,
2250 char *buf)
2251 {
2252 struct Scsi_Host *shost = class_to_shost(cdev);
2253 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2254
2255 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.ChipName);
2256 }
2257 static DEVICE_ATTR(version_product, S_IRUGO,
2258 _ctl_version_product_show, NULL);
2259
2260 /**
2261 * _ctl_version_nvdata_persistent_show - ndvata persistent version
2262 * @cdev - pointer to embedded class device
2263 * @buf - the buffer returned
2264 *
2265 * A sysfs 'read-only' shost attribute.
2266 */
2267 static ssize_t
2268 _ctl_version_nvdata_persistent_show(struct device *cdev,
2269 struct device_attribute *attr, char *buf)
2270 {
2271 struct Scsi_Host *shost = class_to_shost(cdev);
2272 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2273
2274 return snprintf(buf, PAGE_SIZE, "%02xh\n",
2275 le16_to_cpu(ioc->iounit_pg0.NvdataVersionPersistent.Word));
2276 }
2277 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
2278 _ctl_version_nvdata_persistent_show, NULL);
2279
2280 /**
2281 * _ctl_version_nvdata_default_show - nvdata default version
2282 * @cdev - pointer to embedded class device
2283 * @buf - the buffer returned
2284 *
2285 * A sysfs 'read-only' shost attribute.
2286 */
2287 static ssize_t
2288 _ctl_version_nvdata_default_show(struct device *cdev,
2289 struct device_attribute *attr, char *buf)
2290 {
2291 struct Scsi_Host *shost = class_to_shost(cdev);
2292 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2293
2294 return snprintf(buf, PAGE_SIZE, "%02xh\n",
2295 le16_to_cpu(ioc->iounit_pg0.NvdataVersionDefault.Word));
2296 }
2297 static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
2298 _ctl_version_nvdata_default_show, NULL);
2299
2300 /**
2301 * _ctl_board_name_show - board name
2302 * @cdev - pointer to embedded class device
2303 * @buf - the buffer returned
2304 *
2305 * A sysfs 'read-only' shost attribute.
2306 */
2307 static ssize_t
2308 _ctl_board_name_show(struct device *cdev, struct device_attribute *attr,
2309 char *buf)
2310 {
2311 struct Scsi_Host *shost = class_to_shost(cdev);
2312 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2313
2314 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardName);
2315 }
2316 static DEVICE_ATTR(board_name, S_IRUGO, _ctl_board_name_show, NULL);
2317
2318 /**
2319 * _ctl_board_assembly_show - board assembly name
2320 * @cdev - pointer to embedded class device
2321 * @buf - the buffer returned
2322 *
2323 * A sysfs 'read-only' shost attribute.
2324 */
2325 static ssize_t
2326 _ctl_board_assembly_show(struct device *cdev, struct device_attribute *attr,
2327 char *buf)
2328 {
2329 struct Scsi_Host *shost = class_to_shost(cdev);
2330 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2331
2332 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardAssembly);
2333 }
2334 static DEVICE_ATTR(board_assembly, S_IRUGO,
2335 _ctl_board_assembly_show, NULL);
2336
2337 /**
2338 * _ctl_board_tracer_show - board tracer number
2339 * @cdev - pointer to embedded class device
2340 * @buf - the buffer returned
2341 *
2342 * A sysfs 'read-only' shost attribute.
2343 */
2344 static ssize_t
2345 _ctl_board_tracer_show(struct device *cdev, struct device_attribute *attr,
2346 char *buf)
2347 {
2348 struct Scsi_Host *shost = class_to_shost(cdev);
2349 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2350
2351 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardTracerNumber);
2352 }
2353 static DEVICE_ATTR(board_tracer, S_IRUGO,
2354 _ctl_board_tracer_show, NULL);
2355
2356 /**
2357 * _ctl_io_delay_show - io missing delay
2358 * @cdev - pointer to embedded class device
2359 * @buf - the buffer returned
2360 *
2361 * This is for firmware implemention for deboucing device
2362 * removal events.
2363 *
2364 * A sysfs 'read-only' shost attribute.
2365 */
2366 static ssize_t
2367 _ctl_io_delay_show(struct device *cdev, struct device_attribute *attr,
2368 char *buf)
2369 {
2370 struct Scsi_Host *shost = class_to_shost(cdev);
2371 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2372
2373 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
2374 }
2375 static DEVICE_ATTR(io_delay, S_IRUGO,
2376 _ctl_io_delay_show, NULL);
2377
2378 /**
2379 * _ctl_device_delay_show - device missing delay
2380 * @cdev - pointer to embedded class device
2381 * @buf - the buffer returned
2382 *
2383 * This is for firmware implemention for deboucing device
2384 * removal events.
2385 *
2386 * A sysfs 'read-only' shost attribute.
2387 */
2388 static ssize_t
2389 _ctl_device_delay_show(struct device *cdev, struct device_attribute *attr,
2390 char *buf)
2391 {
2392 struct Scsi_Host *shost = class_to_shost(cdev);
2393 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2394
2395 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
2396 }
2397 static DEVICE_ATTR(device_delay, S_IRUGO,
2398 _ctl_device_delay_show, NULL);
2399
2400 /**
2401 * _ctl_fw_queue_depth_show - global credits
2402 * @cdev - pointer to embedded class device
2403 * @buf - the buffer returned
2404 *
2405 * This is firmware queue depth limit
2406 *
2407 * A sysfs 'read-only' shost attribute.
2408 */
2409 static ssize_t
2410 _ctl_fw_queue_depth_show(struct device *cdev, struct device_attribute *attr,
2411 char *buf)
2412 {
2413 struct Scsi_Host *shost = class_to_shost(cdev);
2414 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2415
2416 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->facts.RequestCredit);
2417 }
2418 static DEVICE_ATTR(fw_queue_depth, S_IRUGO,
2419 _ctl_fw_queue_depth_show, NULL);
2420
2421 /**
2422 * _ctl_sas_address_show - sas address
2423 * @cdev - pointer to embedded class device
2424 * @buf - the buffer returned
2425 *
2426 * This is the controller sas address
2427 *
2428 * A sysfs 'read-only' shost attribute.
2429 */
2430 static ssize_t
2431 _ctl_host_sas_address_show(struct device *cdev, struct device_attribute *attr,
2432 char *buf)
2433 {
2434 struct Scsi_Host *shost = class_to_shost(cdev);
2435 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2436
2437 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
2438 (unsigned long long)ioc->sas_hba.sas_address);
2439 }
2440 static DEVICE_ATTR(host_sas_address, S_IRUGO,
2441 _ctl_host_sas_address_show, NULL);
2442
2443 /**
2444 * _ctl_logging_level_show - logging level
2445 * @cdev - pointer to embedded class device
2446 * @buf - the buffer returned
2447 *
2448 * A sysfs 'read/write' shost attribute.
2449 */
2450 static ssize_t
2451 _ctl_logging_level_show(struct device *cdev, struct device_attribute *attr,
2452 char *buf)
2453 {
2454 struct Scsi_Host *shost = class_to_shost(cdev);
2455 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2456
2457 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->logging_level);
2458 }
2459 static ssize_t
2460 _ctl_logging_level_store(struct device *cdev, struct device_attribute *attr,
2461 const char *buf, size_t count)
2462 {
2463 struct Scsi_Host *shost = class_to_shost(cdev);
2464 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2465 int val = 0;
2466
2467 if (sscanf(buf, "%x", &val) != 1)
2468 return -EINVAL;
2469
2470 ioc->logging_level = val;
2471 printk(MPT2SAS_INFO_FMT "logging_level=%08xh\n", ioc->name,
2472 ioc->logging_level);
2473 return strlen(buf);
2474 }
2475 static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR,
2476 _ctl_logging_level_show, _ctl_logging_level_store);
2477
2478 /* device attributes */
2479 /*
2480 * _ctl_fwfault_debug_show - show/store fwfault_debug
2481 * @cdev - pointer to embedded class device
2482 * @buf - the buffer returned
2483 *
2484 * mpt2sas_fwfault_debug is command line option
2485 * A sysfs 'read/write' shost attribute.
2486 */
2487 static ssize_t
2488 _ctl_fwfault_debug_show(struct device *cdev,
2489 struct device_attribute *attr, char *buf)
2490 {
2491 struct Scsi_Host *shost = class_to_shost(cdev);
2492 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2493
2494 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->fwfault_debug);
2495 }
2496 static ssize_t
2497 _ctl_fwfault_debug_store(struct device *cdev,
2498 struct device_attribute *attr, const char *buf, size_t count)
2499 {
2500 struct Scsi_Host *shost = class_to_shost(cdev);
2501 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2502 int val = 0;
2503
2504 if (sscanf(buf, "%d", &val) != 1)
2505 return -EINVAL;
2506
2507 ioc->fwfault_debug = val;
2508 printk(MPT2SAS_INFO_FMT "fwfault_debug=%d\n", ioc->name,
2509 ioc->fwfault_debug);
2510 return strlen(buf);
2511 }
2512 static DEVICE_ATTR(fwfault_debug, S_IRUGO | S_IWUSR,
2513 _ctl_fwfault_debug_show, _ctl_fwfault_debug_store);
2514
2515 struct device_attribute *mpt2sas_host_attrs[] = {
2516 &dev_attr_version_fw,
2517 &dev_attr_version_bios,
2518 &dev_attr_version_mpi,
2519 &dev_attr_version_product,
2520 &dev_attr_version_nvdata_persistent,
2521 &dev_attr_version_nvdata_default,
2522 &dev_attr_board_name,
2523 &dev_attr_board_assembly,
2524 &dev_attr_board_tracer,
2525 &dev_attr_io_delay,
2526 &dev_attr_device_delay,
2527 &dev_attr_logging_level,
2528 &dev_attr_fwfault_debug,
2529 &dev_attr_fw_queue_depth,
2530 &dev_attr_host_sas_address,
2531 NULL,
2532 };
2533
2534 /**
2535 * _ctl_device_sas_address_show - sas address
2536 * @cdev - pointer to embedded class device
2537 * @buf - the buffer returned
2538 *
2539 * This is the sas address for the target
2540 *
2541 * A sysfs 'read-only' shost attribute.
2542 */
2543 static ssize_t
2544 _ctl_device_sas_address_show(struct device *dev, struct device_attribute *attr,
2545 char *buf)
2546 {
2547 struct scsi_device *sdev = to_scsi_device(dev);
2548 struct MPT2SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
2549
2550 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
2551 (unsigned long long)sas_device_priv_data->sas_target->sas_address);
2552 }
2553 static DEVICE_ATTR(sas_address, S_IRUGO, _ctl_device_sas_address_show, NULL);
2554
2555 /**
2556 * _ctl_device_handle_show - device handle
2557 * @cdev - pointer to embedded class device
2558 * @buf - the buffer returned
2559 *
2560 * This is the firmware assigned device handle
2561 *
2562 * A sysfs 'read-only' shost attribute.
2563 */
2564 static ssize_t
2565 _ctl_device_handle_show(struct device *dev, struct device_attribute *attr,
2566 char *buf)
2567 {
2568 struct scsi_device *sdev = to_scsi_device(dev);
2569 struct MPT2SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
2570
2571 return snprintf(buf, PAGE_SIZE, "0x%04x\n",
2572 sas_device_priv_data->sas_target->handle);
2573 }
2574 static DEVICE_ATTR(sas_device_handle, S_IRUGO, _ctl_device_handle_show, NULL);
2575
2576 struct device_attribute *mpt2sas_dev_attrs[] = {
2577 &dev_attr_sas_address,
2578 &dev_attr_sas_device_handle,
2579 NULL,
2580 };
2581
2582 static const struct file_operations ctl_fops = {
2583 .owner = THIS_MODULE,
2584 .unlocked_ioctl = _ctl_ioctl,
2585 .release = _ctl_release,
2586 .poll = _ctl_poll,
2587 .fasync = _ctl_fasync,
2588 #ifdef CONFIG_COMPAT
2589 .compat_ioctl = _ctl_ioctl_compat,
2590 #endif
2591 };
2592
2593 static struct miscdevice ctl_dev = {
2594 .minor = MPT2SAS_MINOR,
2595 .name = MPT2SAS_DEV_NAME,
2596 .fops = &ctl_fops,
2597 };
2598
2599 /**
2600 * mpt2sas_ctl_init - main entry point for ctl.
2601 *
2602 */
2603 void
2604 mpt2sas_ctl_init(void)
2605 {
2606 async_queue = NULL;
2607 if (misc_register(&ctl_dev) < 0)
2608 printk(KERN_ERR "%s can't register misc device [minor=%d]\n",
2609 MPT2SAS_DRIVER_NAME, MPT2SAS_MINOR);
2610
2611 init_waitqueue_head(&ctl_poll_wait);
2612 }
2613
2614 /**
2615 * mpt2sas_ctl_exit - exit point for ctl
2616 *
2617 */
2618 void
2619 mpt2sas_ctl_exit(void)
2620 {
2621 struct MPT2SAS_ADAPTER *ioc;
2622 int i;
2623
2624 list_for_each_entry(ioc, &mpt2sas_ioc_list, list) {
2625
2626 /* free memory associated to diag buffers */
2627 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
2628 if (!ioc->diag_buffer[i])
2629 continue;
2630 pci_free_consistent(ioc->pdev, ioc->diag_buffer_sz[i],
2631 ioc->diag_buffer[i], ioc->diag_buffer_dma[i]);
2632 ioc->diag_buffer[i] = NULL;
2633 ioc->diag_buffer_status[i] = 0;
2634 }
2635
2636 kfree(ioc->event_log);
2637 }
2638 misc_deregister(&ctl_dev);
2639 }
2640
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree