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635374e7 EM |
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) 2007-2008 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 | ||
99bb214b EM |
67 | static int _ctl_send_release(struct MPT2SAS_ADAPTER *ioc, u8 buffer_type, |
68 | u8 *issue_reset); | |
69 | ||
635374e7 EM |
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 | * @VF_ID: virtual function id | |
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 nothing. | |
229 | */ | |
230 | void | |
231 | mpt2sas_ctl_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply) | |
232 | { | |
233 | MPI2DefaultReply_t *mpi_reply; | |
234 | ||
235 | if (ioc->ctl_cmds.status == MPT2_CMD_NOT_USED) | |
236 | return; | |
237 | if (ioc->ctl_cmds.smid != smid) | |
238 | return; | |
239 | ioc->ctl_cmds.status |= MPT2_CMD_COMPLETE; | |
240 | mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); | |
241 | if (mpi_reply) { | |
242 | memcpy(ioc->ctl_cmds.reply, mpi_reply, mpi_reply->MsgLength*4); | |
243 | ioc->ctl_cmds.status |= MPT2_CMD_REPLY_VALID; | |
244 | } | |
245 | #ifdef CONFIG_SCSI_MPT2SAS_LOGGING | |
246 | _ctl_display_some_debug(ioc, smid, "ctl_done", mpi_reply); | |
247 | #endif | |
248 | ioc->ctl_cmds.status &= ~MPT2_CMD_PENDING; | |
249 | complete(&ioc->ctl_cmds.done); | |
250 | } | |
251 | ||
252 | /** | |
253 | * _ctl_check_event_type - determines when an event needs logging | |
254 | * @ioc: per adapter object | |
255 | * @event: firmware event | |
256 | * | |
257 | * The bitmask in ioc->event_type[] indicates which events should be | |
258 | * be saved in the driver event_log. This bitmask is set by application. | |
259 | * | |
260 | * Returns 1 when event should be captured, or zero means no match. | |
261 | */ | |
262 | static int | |
263 | _ctl_check_event_type(struct MPT2SAS_ADAPTER *ioc, u16 event) | |
264 | { | |
265 | u16 i; | |
266 | u32 desired_event; | |
267 | ||
268 | if (event >= 128 || !event || !ioc->event_log) | |
269 | return 0; | |
270 | ||
271 | desired_event = (1 << (event % 32)); | |
272 | if (!desired_event) | |
273 | desired_event = 1; | |
274 | i = event / 32; | |
275 | return desired_event & ioc->event_type[i]; | |
276 | } | |
277 | ||
278 | /** | |
279 | * mpt2sas_ctl_add_to_event_log - add event | |
280 | * @ioc: per adapter object | |
281 | * @mpi_reply: reply message frame | |
282 | * | |
283 | * Return nothing. | |
284 | */ | |
285 | void | |
286 | mpt2sas_ctl_add_to_event_log(struct MPT2SAS_ADAPTER *ioc, | |
287 | Mpi2EventNotificationReply_t *mpi_reply) | |
288 | { | |
289 | struct MPT2_IOCTL_EVENTS *event_log; | |
290 | u16 event; | |
291 | int i; | |
292 | u32 sz, event_data_sz; | |
293 | u8 send_aen = 0; | |
294 | ||
295 | if (!ioc->event_log) | |
296 | return; | |
297 | ||
298 | event = le16_to_cpu(mpi_reply->Event); | |
299 | ||
300 | if (_ctl_check_event_type(ioc, event)) { | |
301 | ||
302 | /* insert entry into circular event_log */ | |
303 | i = ioc->event_context % MPT2SAS_CTL_EVENT_LOG_SIZE; | |
304 | event_log = ioc->event_log; | |
305 | event_log[i].event = event; | |
306 | event_log[i].context = ioc->event_context++; | |
307 | ||
308 | event_data_sz = le16_to_cpu(mpi_reply->EventDataLength)*4; | |
309 | sz = min_t(u32, event_data_sz, MPT2_EVENT_DATA_SIZE); | |
310 | memset(event_log[i].data, 0, MPT2_EVENT_DATA_SIZE); | |
311 | memcpy(event_log[i].data, mpi_reply->EventData, sz); | |
312 | send_aen = 1; | |
313 | } | |
314 | ||
315 | /* This aen_event_read_flag flag is set until the | |
316 | * application has read the event log. | |
317 | * For MPI2_EVENT_LOG_ENTRY_ADDED, we always notify. | |
318 | */ | |
319 | if (event == MPI2_EVENT_LOG_ENTRY_ADDED || | |
320 | (send_aen && !ioc->aen_event_read_flag)) { | |
321 | ioc->aen_event_read_flag = 1; | |
322 | wake_up_interruptible(&ctl_poll_wait); | |
323 | if (async_queue) | |
324 | kill_fasync(&async_queue, SIGIO, POLL_IN); | |
325 | } | |
326 | } | |
327 | ||
328 | /** | |
329 | * mpt2sas_ctl_event_callback - firmware event handler (called at ISR time) | |
330 | * @ioc: per adapter object | |
331 | * @VF_ID: virtual function id | |
332 | * @reply: reply message frame(lower 32bit addr) | |
333 | * Context: interrupt. | |
334 | * | |
335 | * This function merely adds a new work task into ioc->firmware_event_thread. | |
336 | * The tasks are worked from _firmware_event_work in user context. | |
337 | * | |
338 | * Return nothing. | |
339 | */ | |
340 | void | |
341 | mpt2sas_ctl_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID, u32 reply) | |
342 | { | |
343 | Mpi2EventNotificationReply_t *mpi_reply; | |
344 | ||
345 | mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); | |
346 | mpt2sas_ctl_add_to_event_log(ioc, mpi_reply); | |
347 | } | |
348 | ||
349 | /** | |
350 | * _ctl_verify_adapter - validates ioc_number passed from application | |
351 | * @ioc: per adapter object | |
352 | * @iocpp: The ioc pointer is returned in this. | |
353 | * | |
354 | * Return (-1) means error, else ioc_number. | |
355 | */ | |
356 | static int | |
357 | _ctl_verify_adapter(int ioc_number, struct MPT2SAS_ADAPTER **iocpp) | |
358 | { | |
359 | struct MPT2SAS_ADAPTER *ioc; | |
360 | ||
ba33fadf | 361 | list_for_each_entry(ioc, &mpt2sas_ioc_list, list) { |
635374e7 EM |
362 | if (ioc->id != ioc_number) |
363 | continue; | |
364 | *iocpp = ioc; | |
365 | return ioc_number; | |
366 | } | |
367 | *iocpp = NULL; | |
368 | return -1; | |
369 | } | |
370 | ||
371 | /** | |
372 | * mpt2sas_ctl_reset_handler - reset callback handler (for ctl) | |
373 | * @ioc: per adapter object | |
374 | * @reset_phase: phase | |
375 | * | |
376 | * The handler for doing any required cleanup or initialization. | |
377 | * | |
378 | * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET, | |
379 | * MPT2_IOC_DONE_RESET | |
380 | */ | |
381 | void | |
382 | mpt2sas_ctl_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase) | |
383 | { | |
99bb214b EM |
384 | int i; |
385 | u8 issue_reset; | |
386 | ||
635374e7 EM |
387 | switch (reset_phase) { |
388 | case MPT2_IOC_PRE_RESET: | |
389 | dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: " | |
390 | "MPT2_IOC_PRE_RESET\n", ioc->name, __func__)); | |
99bb214b EM |
391 | for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) { |
392 | if (!(ioc->diag_buffer_status[i] & | |
393 | MPT2_DIAG_BUFFER_IS_REGISTERED)) | |
394 | continue; | |
395 | if ((ioc->diag_buffer_status[i] & | |
396 | MPT2_DIAG_BUFFER_IS_RELEASED)) | |
397 | continue; | |
398 | _ctl_send_release(ioc, i, &issue_reset); | |
399 | } | |
635374e7 EM |
400 | break; |
401 | case MPT2_IOC_AFTER_RESET: | |
402 | dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: " | |
403 | "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__)); | |
404 | if (ioc->ctl_cmds.status & MPT2_CMD_PENDING) { | |
405 | ioc->ctl_cmds.status |= MPT2_CMD_RESET; | |
406 | mpt2sas_base_free_smid(ioc, ioc->ctl_cmds.smid); | |
407 | complete(&ioc->ctl_cmds.done); | |
408 | } | |
409 | break; | |
410 | case MPT2_IOC_DONE_RESET: | |
411 | dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: " | |
412 | "MPT2_IOC_DONE_RESET\n", ioc->name, __func__)); | |
99bb214b EM |
413 | |
414 | for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) { | |
415 | if (!(ioc->diag_buffer_status[i] & | |
416 | MPT2_DIAG_BUFFER_IS_REGISTERED)) | |
417 | continue; | |
418 | if ((ioc->diag_buffer_status[i] & | |
419 | MPT2_DIAG_BUFFER_IS_RELEASED)) | |
420 | continue; | |
421 | ioc->diag_buffer_status[i] |= | |
422 | MPT2_DIAG_BUFFER_IS_DIAG_RESET; | |
423 | } | |
635374e7 EM |
424 | break; |
425 | } | |
426 | } | |
427 | ||
428 | /** | |
429 | * _ctl_fasync - | |
430 | * @fd - | |
431 | * @filep - | |
432 | * @mode - | |
433 | * | |
434 | * Called when application request fasyn callback handler. | |
435 | */ | |
436 | static int | |
437 | _ctl_fasync(int fd, struct file *filep, int mode) | |
438 | { | |
439 | return fasync_helper(fd, filep, mode, &async_queue); | |
440 | } | |
441 | ||
442 | /** | |
443 | * _ctl_release - | |
444 | * @inode - | |
445 | * @filep - | |
446 | * | |
447 | * Called when application releases the fasyn callback handler. | |
448 | */ | |
449 | static int | |
450 | _ctl_release(struct inode *inode, struct file *filep) | |
451 | { | |
452 | return fasync_helper(-1, filep, 0, &async_queue); | |
453 | } | |
454 | ||
455 | /** | |
456 | * _ctl_poll - | |
457 | * @file - | |
458 | * @wait - | |
459 | * | |
460 | */ | |
461 | static unsigned int | |
462 | _ctl_poll(struct file *filep, poll_table *wait) | |
463 | { | |
464 | struct MPT2SAS_ADAPTER *ioc; | |
465 | ||
466 | poll_wait(filep, &ctl_poll_wait, wait); | |
467 | ||
ba33fadf | 468 | list_for_each_entry(ioc, &mpt2sas_ioc_list, list) { |
635374e7 EM |
469 | if (ioc->aen_event_read_flag) |
470 | return POLLIN | POLLRDNORM; | |
471 | } | |
472 | return 0; | |
473 | } | |
474 | ||
475 | /** | |
ddf59a35 | 476 | * _ctl_set_task_mid - assign an active smid to tm request |
635374e7 EM |
477 | * @ioc: per adapter object |
478 | * @karg - (struct mpt2_ioctl_command) | |
479 | * @tm_request - pointer to mf from user space | |
480 | * | |
481 | * Returns 0 when an smid if found, else fail. | |
482 | * during failure, the reply frame is filled. | |
483 | */ | |
484 | static int | |
ddf59a35 | 485 | _ctl_set_task_mid(struct MPT2SAS_ADAPTER *ioc, struct mpt2_ioctl_command *karg, |
635374e7 EM |
486 | Mpi2SCSITaskManagementRequest_t *tm_request) |
487 | { | |
488 | u8 found = 0; | |
489 | u16 i; | |
490 | u16 handle; | |
491 | struct scsi_cmnd *scmd; | |
492 | struct MPT2SAS_DEVICE *priv_data; | |
493 | unsigned long flags; | |
494 | Mpi2SCSITaskManagementReply_t *tm_reply; | |
495 | u32 sz; | |
496 | u32 lun; | |
ddf59a35 EM |
497 | char *desc = NULL; |
498 | ||
499 | if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK) | |
500 | desc = "abort_task"; | |
501 | else if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) | |
502 | desc = "query_task"; | |
503 | else | |
504 | return 0; | |
635374e7 EM |
505 | |
506 | lun = scsilun_to_int((struct scsi_lun *)tm_request->LUN); | |
507 | ||
508 | handle = le16_to_cpu(tm_request->DevHandle); | |
509 | spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); | |
510 | for (i = ioc->request_depth; i && !found; i--) { | |
511 | scmd = ioc->scsi_lookup[i - 1].scmd; | |
512 | if (scmd == NULL || scmd->device == NULL || | |
513 | scmd->device->hostdata == NULL) | |
514 | continue; | |
515 | if (lun != scmd->device->lun) | |
516 | continue; | |
517 | priv_data = scmd->device->hostdata; | |
518 | if (priv_data->sas_target == NULL) | |
519 | continue; | |
520 | if (priv_data->sas_target->handle != handle) | |
521 | continue; | |
522 | tm_request->TaskMID = cpu_to_le16(ioc->scsi_lookup[i - 1].smid); | |
523 | found = 1; | |
524 | } | |
525 | spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); | |
526 | ||
527 | if (!found) { | |
ddf59a35 EM |
528 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: " |
529 | "handle(0x%04x), lun(%d), no active mid!!\n", ioc->name, | |
530 | desc, tm_request->DevHandle, lun)); | |
635374e7 EM |
531 | tm_reply = ioc->ctl_cmds.reply; |
532 | tm_reply->DevHandle = tm_request->DevHandle; | |
533 | tm_reply->Function = MPI2_FUNCTION_SCSI_TASK_MGMT; | |
ddf59a35 | 534 | tm_reply->TaskType = tm_request->TaskType; |
635374e7 EM |
535 | tm_reply->MsgLength = sizeof(Mpi2SCSITaskManagementReply_t)/4; |
536 | tm_reply->VP_ID = tm_request->VP_ID; | |
537 | tm_reply->VF_ID = tm_request->VF_ID; | |
538 | sz = min_t(u32, karg->max_reply_bytes, ioc->reply_sz); | |
539 | if (copy_to_user(karg->reply_frame_buf_ptr, ioc->ctl_cmds.reply, | |
540 | sz)) | |
541 | printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, | |
542 | __LINE__, __func__); | |
543 | return 1; | |
544 | } | |
545 | ||
ddf59a35 EM |
546 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: " |
547 | "handle(0x%04x), lun(%d), task_mid(%d)\n", ioc->name, | |
548 | desc, tm_request->DevHandle, lun, tm_request->TaskMID)); | |
635374e7 EM |
549 | return 0; |
550 | } | |
551 | ||
552 | /** | |
553 | * _ctl_do_mpt_command - main handler for MPT2COMMAND opcode | |
554 | * @ioc: per adapter object | |
555 | * @karg - (struct mpt2_ioctl_command) | |
556 | * @mf - pointer to mf in user space | |
557 | * @state - NON_BLOCKING or BLOCKING | |
558 | */ | |
559 | static long | |
560 | _ctl_do_mpt_command(struct MPT2SAS_ADAPTER *ioc, | |
561 | struct mpt2_ioctl_command karg, void __user *mf, enum block_state state) | |
562 | { | |
563 | MPI2RequestHeader_t *mpi_request; | |
564 | MPI2DefaultReply_t *mpi_reply; | |
565 | u32 ioc_state; | |
566 | u16 ioc_status; | |
567 | u16 smid; | |
568 | unsigned long timeout, timeleft; | |
569 | u8 issue_reset; | |
570 | u32 sz; | |
571 | void *psge; | |
572 | void *priv_sense = NULL; | |
573 | void *data_out = NULL; | |
574 | dma_addr_t data_out_dma; | |
575 | size_t data_out_sz = 0; | |
576 | void *data_in = NULL; | |
577 | dma_addr_t data_in_dma; | |
578 | size_t data_in_sz = 0; | |
579 | u32 sgl_flags; | |
580 | long ret; | |
581 | u16 wait_state_count; | |
582 | ||
583 | issue_reset = 0; | |
584 | ||
585 | if (state == NON_BLOCKING && !mutex_trylock(&ioc->ctl_cmds.mutex)) | |
586 | return -EAGAIN; | |
587 | else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) | |
588 | return -ERESTARTSYS; | |
589 | ||
590 | if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) { | |
591 | printk(MPT2SAS_ERR_FMT "%s: ctl_cmd in use\n", | |
592 | ioc->name, __func__); | |
593 | ret = -EAGAIN; | |
594 | goto out; | |
595 | } | |
596 | ||
597 | wait_state_count = 0; | |
598 | ioc_state = mpt2sas_base_get_iocstate(ioc, 1); | |
599 | while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { | |
600 | if (wait_state_count++ == 10) { | |
601 | printk(MPT2SAS_ERR_FMT | |
602 | "%s: failed due to ioc not operational\n", | |
603 | ioc->name, __func__); | |
604 | ret = -EFAULT; | |
605 | goto out; | |
606 | } | |
607 | ssleep(1); | |
608 | ioc_state = mpt2sas_base_get_iocstate(ioc, 1); | |
609 | printk(MPT2SAS_INFO_FMT "%s: waiting for " | |
610 | "operational state(count=%d)\n", ioc->name, | |
611 | __func__, wait_state_count); | |
612 | } | |
613 | if (wait_state_count) | |
614 | printk(MPT2SAS_INFO_FMT "%s: ioc is operational\n", | |
615 | ioc->name, __func__); | |
616 | ||
617 | smid = mpt2sas_base_get_smid(ioc, ioc->ctl_cb_idx); | |
618 | if (!smid) { | |
619 | printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", | |
620 | ioc->name, __func__); | |
621 | ret = -EAGAIN; | |
622 | goto out; | |
623 | } | |
624 | ||
625 | ret = 0; | |
626 | ioc->ctl_cmds.status = MPT2_CMD_PENDING; | |
627 | memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz); | |
628 | mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); | |
629 | ioc->ctl_cmds.smid = smid; | |
630 | data_out_sz = karg.data_out_size; | |
631 | data_in_sz = karg.data_in_size; | |
632 | ||
633 | /* copy in request message frame from user */ | |
634 | if (copy_from_user(mpi_request, mf, karg.data_sge_offset*4)) { | |
635 | printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, __LINE__, | |
636 | __func__); | |
637 | ret = -EFAULT; | |
638 | mpt2sas_base_free_smid(ioc, smid); | |
639 | goto out; | |
640 | } | |
641 | ||
642 | if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST || | |
643 | mpi_request->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) { | |
644 | if (!mpi_request->FunctionDependent1 || | |
645 | mpi_request->FunctionDependent1 > | |
646 | cpu_to_le16(ioc->facts.MaxDevHandle)) { | |
647 | ret = -EINVAL; | |
648 | mpt2sas_base_free_smid(ioc, smid); | |
649 | goto out; | |
650 | } | |
651 | } | |
652 | ||
653 | /* obtain dma-able memory for data transfer */ | |
654 | if (data_out_sz) /* WRITE */ { | |
655 | data_out = pci_alloc_consistent(ioc->pdev, data_out_sz, | |
656 | &data_out_dma); | |
657 | if (!data_out) { | |
658 | printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, | |
659 | __LINE__, __func__); | |
660 | ret = -ENOMEM; | |
661 | mpt2sas_base_free_smid(ioc, smid); | |
662 | goto out; | |
663 | } | |
664 | if (copy_from_user(data_out, karg.data_out_buf_ptr, | |
665 | data_out_sz)) { | |
666 | printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, | |
667 | __LINE__, __func__); | |
668 | ret = -EFAULT; | |
669 | mpt2sas_base_free_smid(ioc, smid); | |
670 | goto out; | |
671 | } | |
672 | } | |
673 | ||
674 | if (data_in_sz) /* READ */ { | |
675 | data_in = pci_alloc_consistent(ioc->pdev, data_in_sz, | |
676 | &data_in_dma); | |
677 | if (!data_in) { | |
678 | printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, | |
679 | __LINE__, __func__); | |
680 | ret = -ENOMEM; | |
681 | mpt2sas_base_free_smid(ioc, smid); | |
682 | goto out; | |
683 | } | |
684 | } | |
685 | ||
686 | /* add scatter gather elements */ | |
687 | psge = (void *)mpi_request + (karg.data_sge_offset*4); | |
688 | ||
689 | if (!data_out_sz && !data_in_sz) { | |
690 | mpt2sas_base_build_zero_len_sge(ioc, psge); | |
691 | } else if (data_out_sz && data_in_sz) { | |
692 | /* WRITE sgel first */ | |
693 | sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | | |
694 | MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC); | |
695 | sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; | |
696 | ioc->base_add_sg_single(psge, sgl_flags | | |
697 | data_out_sz, data_out_dma); | |
698 | ||
699 | /* incr sgel */ | |
700 | psge += ioc->sge_size; | |
701 | ||
702 | /* READ sgel last */ | |
703 | sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | | |
704 | MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER | | |
705 | MPI2_SGE_FLAGS_END_OF_LIST); | |
706 | sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; | |
707 | ioc->base_add_sg_single(psge, sgl_flags | | |
708 | data_in_sz, data_in_dma); | |
709 | } else if (data_out_sz) /* WRITE */ { | |
710 | sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | | |
711 | MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER | | |
712 | MPI2_SGE_FLAGS_END_OF_LIST | MPI2_SGE_FLAGS_HOST_TO_IOC); | |
713 | sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; | |
714 | ioc->base_add_sg_single(psge, sgl_flags | | |
715 | data_out_sz, data_out_dma); | |
716 | } else if (data_in_sz) /* READ */ { | |
717 | sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | | |
718 | MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER | | |
719 | MPI2_SGE_FLAGS_END_OF_LIST); | |
720 | sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; | |
721 | ioc->base_add_sg_single(psge, sgl_flags | | |
722 | data_in_sz, data_in_dma); | |
723 | } | |
724 | ||
725 | /* send command to firmware */ | |
726 | #ifdef CONFIG_SCSI_MPT2SAS_LOGGING | |
727 | _ctl_display_some_debug(ioc, smid, "ctl_request", NULL); | |
728 | #endif | |
729 | ||
730 | switch (mpi_request->Function) { | |
731 | case MPI2_FUNCTION_SCSI_IO_REQUEST: | |
732 | case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH: | |
733 | { | |
734 | Mpi2SCSIIORequest_t *scsiio_request = | |
735 | (Mpi2SCSIIORequest_t *)mpi_request; | |
736 | scsiio_request->SenseBufferLowAddress = | |
737 | (u32)mpt2sas_base_get_sense_buffer_dma(ioc, smid); | |
738 | priv_sense = mpt2sas_base_get_sense_buffer(ioc, smid); | |
739 | memset(priv_sense, 0, SCSI_SENSE_BUFFERSIZE); | |
740 | mpt2sas_base_put_smid_scsi_io(ioc, smid, 0, | |
741 | le16_to_cpu(mpi_request->FunctionDependent1)); | |
742 | break; | |
743 | } | |
744 | case MPI2_FUNCTION_SCSI_TASK_MGMT: | |
745 | { | |
746 | Mpi2SCSITaskManagementRequest_t *tm_request = | |
747 | (Mpi2SCSITaskManagementRequest_t *)mpi_request; | |
748 | ||
749 | if (tm_request->TaskType == | |
ddf59a35 EM |
750 | MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK || |
751 | tm_request->TaskType == | |
752 | MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) { | |
753 | if (_ctl_set_task_mid(ioc, &karg, tm_request)) { | |
77bdd9ee | 754 | mpt2sas_base_free_smid(ioc, smid); |
635374e7 | 755 | goto out; |
77bdd9ee | 756 | } |
635374e7 EM |
757 | } |
758 | ||
759 | mutex_lock(&ioc->tm_cmds.mutex); | |
760 | mpt2sas_scsih_set_tm_flag(ioc, le16_to_cpu( | |
761 | tm_request->DevHandle)); | |
762 | mpt2sas_base_put_smid_hi_priority(ioc, smid, | |
763 | mpi_request->VF_ID); | |
764 | break; | |
765 | } | |
766 | case MPI2_FUNCTION_SMP_PASSTHROUGH: | |
767 | { | |
768 | Mpi2SmpPassthroughRequest_t *smp_request = | |
769 | (Mpi2SmpPassthroughRequest_t *)mpi_request; | |
770 | u8 *data; | |
771 | ||
772 | /* ioc determines which port to use */ | |
773 | smp_request->PhysicalPort = 0xFF; | |
774 | if (smp_request->PassthroughFlags & | |
775 | MPI2_SMP_PT_REQ_PT_FLAGS_IMMEDIATE) | |
776 | data = (u8 *)&smp_request->SGL; | |
777 | else | |
778 | data = data_out; | |
779 | ||
780 | if (data[1] == 0x91 && (data[10] == 1 || data[10] == 2)) { | |
781 | ioc->ioc_link_reset_in_progress = 1; | |
782 | ioc->ignore_loginfos = 1; | |
783 | } | |
784 | mpt2sas_base_put_smid_default(ioc, smid, mpi_request->VF_ID); | |
785 | break; | |
786 | } | |
787 | case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL: | |
788 | { | |
789 | Mpi2SasIoUnitControlRequest_t *sasiounit_request = | |
790 | (Mpi2SasIoUnitControlRequest_t *)mpi_request; | |
791 | ||
792 | if (sasiounit_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET | |
793 | || sasiounit_request->Operation == | |
794 | MPI2_SAS_OP_PHY_LINK_RESET) { | |
795 | ioc->ioc_link_reset_in_progress = 1; | |
796 | ioc->ignore_loginfos = 1; | |
797 | } | |
798 | mpt2sas_base_put_smid_default(ioc, smid, mpi_request->VF_ID); | |
799 | break; | |
800 | } | |
801 | default: | |
802 | mpt2sas_base_put_smid_default(ioc, smid, mpi_request->VF_ID); | |
803 | break; | |
804 | } | |
805 | ||
806 | if (karg.timeout < MPT2_IOCTL_DEFAULT_TIMEOUT) | |
807 | timeout = MPT2_IOCTL_DEFAULT_TIMEOUT; | |
808 | else | |
809 | timeout = karg.timeout; | |
810 | timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done, | |
811 | timeout*HZ); | |
812 | if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) { | |
813 | Mpi2SCSITaskManagementRequest_t *tm_request = | |
814 | (Mpi2SCSITaskManagementRequest_t *)mpi_request; | |
815 | mutex_unlock(&ioc->tm_cmds.mutex); | |
816 | mpt2sas_scsih_clear_tm_flag(ioc, le16_to_cpu( | |
817 | tm_request->DevHandle)); | |
818 | } else if ((mpi_request->Function == MPI2_FUNCTION_SMP_PASSTHROUGH || | |
819 | mpi_request->Function == MPI2_FUNCTION_SAS_IO_UNIT_CONTROL) && | |
820 | ioc->ioc_link_reset_in_progress) { | |
821 | ioc->ioc_link_reset_in_progress = 0; | |
822 | ioc->ignore_loginfos = 0; | |
823 | } | |
824 | if (!(ioc->ctl_cmds.status & MPT2_CMD_COMPLETE)) { | |
825 | printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name, | |
826 | __func__); | |
827 | _debug_dump_mf(mpi_request, karg.data_sge_offset); | |
828 | if (!(ioc->ctl_cmds.status & MPT2_CMD_RESET)) | |
829 | issue_reset = 1; | |
830 | goto issue_host_reset; | |
831 | } | |
832 | ||
833 | mpi_reply = ioc->ctl_cmds.reply; | |
834 | ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK; | |
835 | ||
836 | #ifdef CONFIG_SCSI_MPT2SAS_LOGGING | |
837 | if (mpi_reply->Function == MPI2_FUNCTION_SCSI_TASK_MGMT && | |
838 | (ioc->logging_level & MPT_DEBUG_TM)) { | |
839 | Mpi2SCSITaskManagementReply_t *tm_reply = | |
840 | (Mpi2SCSITaskManagementReply_t *)mpi_reply; | |
841 | ||
842 | printk(MPT2SAS_DEBUG_FMT "TASK_MGMT: " | |
843 | "IOCStatus(0x%04x), IOCLogInfo(0x%08x), " | |
844 | "TerminationCount(0x%08x)\n", ioc->name, | |
845 | tm_reply->IOCStatus, tm_reply->IOCLogInfo, | |
846 | tm_reply->TerminationCount); | |
847 | } | |
848 | #endif | |
849 | /* copy out xdata to user */ | |
850 | if (data_in_sz) { | |
851 | if (copy_to_user(karg.data_in_buf_ptr, data_in, | |
852 | data_in_sz)) { | |
853 | printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, | |
854 | __LINE__, __func__); | |
855 | ret = -ENODATA; | |
856 | goto out; | |
857 | } | |
858 | } | |
859 | ||
860 | /* copy out reply message frame to user */ | |
861 | if (karg.max_reply_bytes) { | |
862 | sz = min_t(u32, karg.max_reply_bytes, ioc->reply_sz); | |
863 | if (copy_to_user(karg.reply_frame_buf_ptr, ioc->ctl_cmds.reply, | |
864 | sz)) { | |
865 | printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, | |
866 | __LINE__, __func__); | |
867 | ret = -ENODATA; | |
868 | goto out; | |
869 | } | |
870 | } | |
871 | ||
872 | /* copy out sense to user */ | |
873 | if (karg.max_sense_bytes && (mpi_request->Function == | |
874 | MPI2_FUNCTION_SCSI_IO_REQUEST || mpi_request->Function == | |
875 | MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) { | |
876 | sz = min_t(u32, karg.max_sense_bytes, SCSI_SENSE_BUFFERSIZE); | |
877 | if (copy_to_user(karg.sense_data_ptr, priv_sense, sz)) { | |
878 | printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, | |
879 | __LINE__, __func__); | |
880 | ret = -ENODATA; | |
881 | goto out; | |
882 | } | |
883 | } | |
884 | ||
885 | issue_host_reset: | |
886 | if (issue_reset) { | |
887 | if ((mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST || | |
888 | mpi_request->Function == | |
889 | MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) { | |
890 | printk(MPT2SAS_INFO_FMT "issue target reset: handle " | |
891 | "= (0x%04x)\n", ioc->name, | |
892 | mpi_request->FunctionDependent1); | |
893 | mutex_lock(&ioc->tm_cmds.mutex); | |
894 | mpt2sas_scsih_issue_tm(ioc, | |
895 | mpi_request->FunctionDependent1, 0, | |
896 | MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 10); | |
897 | ioc->tm_cmds.status = MPT2_CMD_NOT_USED; | |
898 | mutex_unlock(&ioc->tm_cmds.mutex); | |
899 | } else | |
900 | mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, | |
901 | FORCE_BIG_HAMMER); | |
902 | } | |
903 | ||
904 | out: | |
905 | ||
906 | /* free memory associated with sg buffers */ | |
907 | if (data_in) | |
908 | pci_free_consistent(ioc->pdev, data_in_sz, data_in, | |
909 | data_in_dma); | |
910 | ||
911 | if (data_out) | |
912 | pci_free_consistent(ioc->pdev, data_out_sz, data_out, | |
913 | data_out_dma); | |
914 | ||
915 | ioc->ctl_cmds.status = MPT2_CMD_NOT_USED; | |
916 | mutex_unlock(&ioc->ctl_cmds.mutex); | |
917 | return ret; | |
918 | } | |
919 | ||
920 | /** | |
921 | * _ctl_getiocinfo - main handler for MPT2IOCINFO opcode | |
922 | * @arg - user space buffer containing ioctl content | |
923 | */ | |
924 | static long | |
925 | _ctl_getiocinfo(void __user *arg) | |
926 | { | |
927 | struct mpt2_ioctl_iocinfo karg; | |
928 | struct MPT2SAS_ADAPTER *ioc; | |
929 | u8 revision; | |
930 | ||
931 | if (copy_from_user(&karg, arg, sizeof(karg))) { | |
932 | printk(KERN_ERR "failure at %s:%d/%s()!\n", | |
933 | __FILE__, __LINE__, __func__); | |
934 | return -EFAULT; | |
935 | } | |
936 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc) | |
937 | return -ENODEV; | |
938 | ||
939 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name, | |
940 | __func__)); | |
941 | ||
942 | memset(&karg, 0 , sizeof(karg)); | |
943 | karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2; | |
944 | if (ioc->pfacts) | |
945 | karg.port_number = ioc->pfacts[0].PortNumber; | |
946 | pci_read_config_byte(ioc->pdev, PCI_CLASS_REVISION, &revision); | |
947 | karg.hw_rev = revision; | |
948 | karg.pci_id = ioc->pdev->device; | |
949 | karg.subsystem_device = ioc->pdev->subsystem_device; | |
950 | karg.subsystem_vendor = ioc->pdev->subsystem_vendor; | |
951 | karg.pci_information.u.bits.bus = ioc->pdev->bus->number; | |
952 | karg.pci_information.u.bits.device = PCI_SLOT(ioc->pdev->devfn); | |
953 | karg.pci_information.u.bits.function = PCI_FUNC(ioc->pdev->devfn); | |
954 | karg.pci_information.segment_id = pci_domain_nr(ioc->pdev->bus); | |
955 | karg.firmware_version = ioc->facts.FWVersion.Word; | |
e5f9bb19 EM |
956 | strcpy(karg.driver_version, MPT2SAS_DRIVER_NAME); |
957 | strcat(karg.driver_version, "-"); | |
958 | strcat(karg.driver_version, MPT2SAS_DRIVER_VERSION); | |
635374e7 EM |
959 | karg.bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion); |
960 | ||
961 | if (copy_to_user(arg, &karg, sizeof(karg))) { | |
962 | printk(KERN_ERR "failure at %s:%d/%s()!\n", | |
963 | __FILE__, __LINE__, __func__); | |
964 | return -EFAULT; | |
965 | } | |
966 | return 0; | |
967 | } | |
968 | ||
969 | /** | |
970 | * _ctl_eventquery - main handler for MPT2EVENTQUERY opcode | |
971 | * @arg - user space buffer containing ioctl content | |
972 | */ | |
973 | static long | |
974 | _ctl_eventquery(void __user *arg) | |
975 | { | |
976 | struct mpt2_ioctl_eventquery karg; | |
977 | struct MPT2SAS_ADAPTER *ioc; | |
978 | ||
979 | if (copy_from_user(&karg, arg, sizeof(karg))) { | |
980 | printk(KERN_ERR "failure at %s:%d/%s()!\n", | |
981 | __FILE__, __LINE__, __func__); | |
982 | return -EFAULT; | |
983 | } | |
984 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc) | |
985 | return -ENODEV; | |
986 | ||
987 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name, | |
988 | __func__)); | |
989 | ||
990 | karg.event_entries = MPT2SAS_CTL_EVENT_LOG_SIZE; | |
991 | memcpy(karg.event_types, ioc->event_type, | |
992 | MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32)); | |
993 | ||
994 | if (copy_to_user(arg, &karg, sizeof(karg))) { | |
995 | printk(KERN_ERR "failure at %s:%d/%s()!\n", | |
996 | __FILE__, __LINE__, __func__); | |
997 | return -EFAULT; | |
998 | } | |
999 | return 0; | |
1000 | } | |
1001 | ||
1002 | /** | |
1003 | * _ctl_eventenable - main handler for MPT2EVENTENABLE opcode | |
1004 | * @arg - user space buffer containing ioctl content | |
1005 | */ | |
1006 | static long | |
1007 | _ctl_eventenable(void __user *arg) | |
1008 | { | |
1009 | struct mpt2_ioctl_eventenable karg; | |
1010 | struct MPT2SAS_ADAPTER *ioc; | |
1011 | ||
1012 | if (copy_from_user(&karg, arg, sizeof(karg))) { | |
1013 | printk(KERN_ERR "failure at %s:%d/%s()!\n", | |
1014 | __FILE__, __LINE__, __func__); | |
1015 | return -EFAULT; | |
1016 | } | |
1017 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc) | |
1018 | return -ENODEV; | |
1019 | ||
1020 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name, | |
1021 | __func__)); | |
1022 | ||
1023 | if (ioc->event_log) | |
1024 | return 0; | |
1025 | memcpy(ioc->event_type, karg.event_types, | |
1026 | MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32)); | |
1027 | mpt2sas_base_validate_event_type(ioc, ioc->event_type); | |
1028 | ||
1029 | /* initialize event_log */ | |
1030 | ioc->event_context = 0; | |
1031 | ioc->aen_event_read_flag = 0; | |
1032 | ioc->event_log = kcalloc(MPT2SAS_CTL_EVENT_LOG_SIZE, | |
1033 | sizeof(struct MPT2_IOCTL_EVENTS), GFP_KERNEL); | |
1034 | if (!ioc->event_log) { | |
1035 | printk(KERN_ERR "failure at %s:%d/%s()!\n", | |
1036 | __FILE__, __LINE__, __func__); | |
1037 | return -ENOMEM; | |
1038 | } | |
1039 | return 0; | |
1040 | } | |
1041 | ||
1042 | /** | |
1043 | * _ctl_eventreport - main handler for MPT2EVENTREPORT opcode | |
1044 | * @arg - user space buffer containing ioctl content | |
1045 | */ | |
1046 | static long | |
1047 | _ctl_eventreport(void __user *arg) | |
1048 | { | |
1049 | struct mpt2_ioctl_eventreport karg; | |
1050 | struct MPT2SAS_ADAPTER *ioc; | |
1051 | u32 number_bytes, max_events, max; | |
1052 | struct mpt2_ioctl_eventreport __user *uarg = arg; | |
1053 | ||
1054 | if (copy_from_user(&karg, arg, sizeof(karg))) { | |
1055 | printk(KERN_ERR "failure at %s:%d/%s()!\n", | |
1056 | __FILE__, __LINE__, __func__); | |
1057 | return -EFAULT; | |
1058 | } | |
1059 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc) | |
1060 | return -ENODEV; | |
1061 | ||
1062 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name, | |
1063 | __func__)); | |
1064 | ||
1065 | number_bytes = karg.hdr.max_data_size - | |
1066 | sizeof(struct mpt2_ioctl_header); | |
1067 | max_events = number_bytes/sizeof(struct MPT2_IOCTL_EVENTS); | |
1068 | max = min_t(u32, MPT2SAS_CTL_EVENT_LOG_SIZE, max_events); | |
1069 | ||
1070 | /* If fewer than 1 event is requested, there must have | |
1071 | * been some type of error. | |
1072 | */ | |
1073 | if (!max || !ioc->event_log) | |
1074 | return -ENODATA; | |
1075 | ||
1076 | number_bytes = max * sizeof(struct MPT2_IOCTL_EVENTS); | |
1077 | if (copy_to_user(uarg->event_data, ioc->event_log, number_bytes)) { | |
1078 | printk(KERN_ERR "failure at %s:%d/%s()!\n", | |
1079 | __FILE__, __LINE__, __func__); | |
1080 | return -EFAULT; | |
1081 | } | |
1082 | ||
1083 | /* reset flag so SIGIO can restart */ | |
1084 | ioc->aen_event_read_flag = 0; | |
1085 | return 0; | |
1086 | } | |
1087 | ||
1088 | /** | |
1089 | * _ctl_do_reset - main handler for MPT2HARDRESET opcode | |
1090 | * @arg - user space buffer containing ioctl content | |
1091 | */ | |
1092 | static long | |
1093 | _ctl_do_reset(void __user *arg) | |
1094 | { | |
1095 | struct mpt2_ioctl_diag_reset karg; | |
1096 | struct MPT2SAS_ADAPTER *ioc; | |
1097 | int retval; | |
1098 | ||
1099 | if (copy_from_user(&karg, arg, sizeof(karg))) { | |
1100 | printk(KERN_ERR "failure at %s:%d/%s()!\n", | |
1101 | __FILE__, __LINE__, __func__); | |
1102 | return -EFAULT; | |
1103 | } | |
1104 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc) | |
1105 | return -ENODEV; | |
1106 | ||
1107 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name, | |
1108 | __func__)); | |
1109 | ||
1110 | retval = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, | |
1111 | FORCE_BIG_HAMMER); | |
1112 | printk(MPT2SAS_INFO_FMT "host reset: %s\n", | |
1113 | ioc->name, ((!retval) ? "SUCCESS" : "FAILED")); | |
1114 | return 0; | |
1115 | } | |
1116 | ||
1117 | /** | |
1118 | * _ctl_btdh_search_sas_device - searching for sas device | |
1119 | * @ioc: per adapter object | |
1120 | * @btdh: btdh ioctl payload | |
1121 | */ | |
1122 | static int | |
1123 | _ctl_btdh_search_sas_device(struct MPT2SAS_ADAPTER *ioc, | |
1124 | struct mpt2_ioctl_btdh_mapping *btdh) | |
1125 | { | |
1126 | struct _sas_device *sas_device; | |
1127 | unsigned long flags; | |
1128 | int rc = 0; | |
1129 | ||
1130 | if (list_empty(&ioc->sas_device_list)) | |
1131 | return rc; | |
1132 | ||
1133 | spin_lock_irqsave(&ioc->sas_device_lock, flags); | |
1134 | list_for_each_entry(sas_device, &ioc->sas_device_list, list) { | |
1135 | if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF && | |
1136 | btdh->handle == sas_device->handle) { | |
1137 | btdh->bus = sas_device->channel; | |
1138 | btdh->id = sas_device->id; | |
1139 | rc = 1; | |
1140 | goto out; | |
1141 | } else if (btdh->bus == sas_device->channel && btdh->id == | |
1142 | sas_device->id && btdh->handle == 0xFFFF) { | |
1143 | btdh->handle = sas_device->handle; | |
1144 | rc = 1; | |
1145 | goto out; | |
1146 | } | |
1147 | } | |
1148 | out: | |
1149 | spin_unlock_irqrestore(&ioc->sas_device_lock, flags); | |
1150 | return rc; | |
1151 | } | |
1152 | ||
1153 | /** | |
1154 | * _ctl_btdh_search_raid_device - searching for raid device | |
1155 | * @ioc: per adapter object | |
1156 | * @btdh: btdh ioctl payload | |
1157 | */ | |
1158 | static int | |
1159 | _ctl_btdh_search_raid_device(struct MPT2SAS_ADAPTER *ioc, | |
1160 | struct mpt2_ioctl_btdh_mapping *btdh) | |
1161 | { | |
1162 | struct _raid_device *raid_device; | |
1163 | unsigned long flags; | |
1164 | int rc = 0; | |
1165 | ||
1166 | if (list_empty(&ioc->raid_device_list)) | |
1167 | return rc; | |
1168 | ||
1169 | spin_lock_irqsave(&ioc->raid_device_lock, flags); | |
1170 | list_for_each_entry(raid_device, &ioc->raid_device_list, list) { | |
1171 | if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF && | |
1172 | btdh->handle == raid_device->handle) { | |
1173 | btdh->bus = raid_device->channel; | |
1174 | btdh->id = raid_device->id; | |
1175 | rc = 1; | |
1176 | goto out; | |
1177 | } else if (btdh->bus == raid_device->channel && btdh->id == | |
1178 | raid_device->id && btdh->handle == 0xFFFF) { | |
1179 | btdh->handle = raid_device->handle; | |
1180 | rc = 1; | |
1181 | goto out; | |
1182 | } | |
1183 | } | |
1184 | out: | |
1185 | spin_unlock_irqrestore(&ioc->raid_device_lock, flags); | |
1186 | return rc; | |
1187 | } | |
1188 | ||
1189 | /** | |
1190 | * _ctl_btdh_mapping - main handler for MPT2BTDHMAPPING opcode | |
1191 | * @arg - user space buffer containing ioctl content | |
1192 | */ | |
1193 | static long | |
1194 | _ctl_btdh_mapping(void __user *arg) | |
1195 | { | |
1196 | struct mpt2_ioctl_btdh_mapping karg; | |
1197 | struct MPT2SAS_ADAPTER *ioc; | |
1198 | int rc; | |
1199 | ||
1200 | if (copy_from_user(&karg, arg, sizeof(karg))) { | |
1201 | printk(KERN_ERR "failure at %s:%d/%s()!\n", | |
1202 | __FILE__, __LINE__, __func__); | |
1203 | return -EFAULT; | |
1204 | } | |
1205 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc) | |
1206 | return -ENODEV; | |
1207 | ||
1208 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name, | |
1209 | __func__)); | |
1210 | ||
1211 | rc = _ctl_btdh_search_sas_device(ioc, &karg); | |
1212 | if (!rc) | |
1213 | _ctl_btdh_search_raid_device(ioc, &karg); | |
1214 | ||
1215 | if (copy_to_user(arg, &karg, sizeof(karg))) { | |
1216 | printk(KERN_ERR "failure at %s:%d/%s()!\n", | |
1217 | __FILE__, __LINE__, __func__); | |
1218 | return -EFAULT; | |
1219 | } | |
1220 | return 0; | |
1221 | } | |
1222 | ||
1223 | /** | |
1224 | * _ctl_diag_capability - return diag buffer capability | |
1225 | * @ioc: per adapter object | |
1226 | * @buffer_type: specifies either TRACE or SNAPSHOT | |
1227 | * | |
1228 | * returns 1 when diag buffer support is enabled in firmware | |
1229 | */ | |
1230 | static u8 | |
1231 | _ctl_diag_capability(struct MPT2SAS_ADAPTER *ioc, u8 buffer_type) | |
1232 | { | |
1233 | u8 rc = 0; | |
1234 | ||
1235 | switch (buffer_type) { | |
1236 | case MPI2_DIAG_BUF_TYPE_TRACE: | |
1237 | if (ioc->facts.IOCCapabilities & | |
1238 | MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER) | |
1239 | rc = 1; | |
1240 | break; | |
1241 | case MPI2_DIAG_BUF_TYPE_SNAPSHOT: | |
1242 | if (ioc->facts.IOCCapabilities & | |
1243 | MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER) | |
1244 | rc = 1; | |
1245 | break; | |
1246 | } | |
1247 | ||
1248 | return rc; | |
1249 | } | |
1250 | ||
1251 | /** | |
1252 | * _ctl_diag_register - application register with driver | |
1253 | * @arg - user space buffer containing ioctl content | |
1254 | * @state - NON_BLOCKING or BLOCKING | |
1255 | * | |
1256 | * This will allow the driver to setup any required buffers that will be | |
1257 | * needed by firmware to communicate with the driver. | |
1258 | */ | |
1259 | static long | |
1260 | _ctl_diag_register(void __user *arg, enum block_state state) | |
1261 | { | |
1262 | struct mpt2_diag_register karg; | |
1263 | struct MPT2SAS_ADAPTER *ioc; | |
1264 | int rc, i; | |
1265 | void *request_data = NULL; | |
1266 | dma_addr_t request_data_dma; | |
1267 | u32 request_data_sz = 0; | |
1268 | Mpi2DiagBufferPostRequest_t *mpi_request; | |
1269 | Mpi2DiagBufferPostReply_t *mpi_reply; | |
1270 | u8 buffer_type; | |
1271 | unsigned long timeleft; | |
1272 | u16 smid; | |
1273 | u16 ioc_status; | |
1274 | u8 issue_reset = 0; | |
1275 | ||
1276 | if (copy_from_user(&karg, arg, sizeof(karg))) { | |
1277 | printk(KERN_ERR "failure at %s:%d/%s()!\n", | |
1278 | __FILE__, __LINE__, __func__); | |
1279 | return -EFAULT; | |
1280 | } | |
1281 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc) | |
1282 | return -ENODEV; | |
1283 | ||
1284 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name, | |
1285 | __func__)); | |
1286 | ||
1287 | buffer_type = karg.buffer_type; | |
1288 | if (!_ctl_diag_capability(ioc, buffer_type)) { | |
1289 | printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for " | |
1290 | "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); | |
1291 | return -EPERM; | |
1292 | } | |
1293 | ||
1294 | if (ioc->diag_buffer_status[buffer_type] & | |
1295 | MPT2_DIAG_BUFFER_IS_REGISTERED) { | |
1296 | printk(MPT2SAS_ERR_FMT "%s: already has a registered " | |
1297 | "buffer for buffer_type(0x%02x)\n", ioc->name, __func__, | |
1298 | buffer_type); | |
1299 | return -EINVAL; | |
1300 | } | |
1301 | ||
1302 | if (karg.requested_buffer_size % 4) { | |
1303 | printk(MPT2SAS_ERR_FMT "%s: the requested_buffer_size " | |
1304 | "is not 4 byte aligned\n", ioc->name, __func__); | |
1305 | return -EINVAL; | |
1306 | } | |
1307 | ||
1308 | if (state == NON_BLOCKING && !mutex_trylock(&ioc->ctl_cmds.mutex)) | |
1309 | return -EAGAIN; | |
1310 | else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) | |
1311 | return -ERESTARTSYS; | |
1312 | ||
1313 | if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) { | |
1314 | printk(MPT2SAS_ERR_FMT "%s: ctl_cmd in use\n", | |
1315 | ioc->name, __func__); | |
1316 | rc = -EAGAIN; | |
1317 | goto out; | |
1318 | } | |
1319 | ||
1320 | smid = mpt2sas_base_get_smid(ioc, ioc->ctl_cb_idx); | |
1321 | if (!smid) { | |
1322 | printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", | |
1323 | ioc->name, __func__); | |
1324 | rc = -EAGAIN; | |
1325 | goto out; | |
1326 | } | |
1327 | ||
1328 | rc = 0; | |
1329 | ioc->ctl_cmds.status = MPT2_CMD_PENDING; | |
1330 | memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz); | |
1331 | mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); | |
1332 | ioc->ctl_cmds.smid = smid; | |
1333 | ||
1334 | request_data = ioc->diag_buffer[buffer_type]; | |
1335 | request_data_sz = karg.requested_buffer_size; | |
1336 | ioc->unique_id[buffer_type] = karg.unique_id; | |
1337 | ioc->diag_buffer_status[buffer_type] = 0; | |
1338 | memcpy(ioc->product_specific[buffer_type], karg.product_specific, | |
1339 | MPT2_PRODUCT_SPECIFIC_DWORDS); | |
1340 | ioc->diagnostic_flags[buffer_type] = karg.diagnostic_flags; | |
1341 | ||
1342 | if (request_data) { | |
1343 | request_data_dma = ioc->diag_buffer_dma[buffer_type]; | |
1344 | if (request_data_sz != ioc->diag_buffer_sz[buffer_type]) { | |
1345 | pci_free_consistent(ioc->pdev, | |
1346 | ioc->diag_buffer_sz[buffer_type], | |
1347 | request_data, request_data_dma); | |
1348 | request_data = NULL; | |
1349 | } | |
1350 | } | |
1351 | ||
1352 | if (request_data == NULL) { | |
1353 | ioc->diag_buffer_sz[buffer_type] = 0; | |
1354 | ioc->diag_buffer_dma[buffer_type] = 0; | |
1355 | request_data = pci_alloc_consistent( | |
1356 | ioc->pdev, request_data_sz, &request_data_dma); | |
1357 | if (request_data == NULL) { | |
1358 | printk(MPT2SAS_ERR_FMT "%s: failed allocating memory" | |
1359 | " for diag buffers, requested size(%d)\n", | |
1360 | ioc->name, __func__, request_data_sz); | |
1361 | mpt2sas_base_free_smid(ioc, smid); | |
1362 | return -ENOMEM; | |
1363 | } | |
1364 | ioc->diag_buffer[buffer_type] = request_data; | |
1365 | ioc->diag_buffer_sz[buffer_type] = request_data_sz; | |
1366 | ioc->diag_buffer_dma[buffer_type] = request_data_dma; | |
1367 | } | |
1368 | ||
1369 | mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST; | |
1370 | mpi_request->BufferType = karg.buffer_type; | |
1371 | mpi_request->Flags = cpu_to_le32(karg.diagnostic_flags); | |
1372 | mpi_request->BufferAddress = cpu_to_le64(request_data_dma); | |
1373 | mpi_request->BufferLength = cpu_to_le32(request_data_sz); | |
1374 | ||
1375 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: diag_buffer(0x%p), " | |
1376 | "dma(0x%llx), sz(%d)\n", ioc->name, __func__, request_data, | |
1377 | (unsigned long long)request_data_dma, mpi_request->BufferLength)); | |
1378 | ||
1379 | for (i = 0; i < MPT2_PRODUCT_SPECIFIC_DWORDS; i++) | |
1380 | mpi_request->ProductSpecific[i] = | |
1381 | cpu_to_le32(ioc->product_specific[buffer_type][i]); | |
1382 | ||
1383 | mpt2sas_base_put_smid_default(ioc, smid, mpi_request->VF_ID); | |
1384 | timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done, | |
1385 | MPT2_IOCTL_DEFAULT_TIMEOUT*HZ); | |
1386 | ||
1387 | if (!(ioc->ctl_cmds.status & MPT2_CMD_COMPLETE)) { | |
1388 | printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name, | |
1389 | __func__); | |
1390 | _debug_dump_mf(mpi_request, | |
1391 | sizeof(Mpi2DiagBufferPostRequest_t)/4); | |
1392 | if (!(ioc->ctl_cmds.status & MPT2_CMD_RESET)) | |
1393 | issue_reset = 1; | |
1394 | goto issue_host_reset; | |
1395 | } | |
1396 | ||
1397 | /* process the completed Reply Message Frame */ | |
1398 | if ((ioc->ctl_cmds.status & MPT2_CMD_REPLY_VALID) == 0) { | |
1399 | printk(MPT2SAS_ERR_FMT "%s: no reply message\n", | |
1400 | ioc->name, __func__); | |
1401 | rc = -EFAULT; | |
1402 | goto out; | |
1403 | } | |
1404 | ||
1405 | mpi_reply = ioc->ctl_cmds.reply; | |
1406 | ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK; | |
1407 | ||
1408 | if (ioc_status == MPI2_IOCSTATUS_SUCCESS) { | |
1409 | ioc->diag_buffer_status[buffer_type] |= | |
1410 | MPT2_DIAG_BUFFER_IS_REGISTERED; | |
1411 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: success\n", | |
1412 | ioc->name, __func__)); | |
1413 | } else { | |
1414 | printk(MPT2SAS_DEBUG_FMT "%s: ioc_status(0x%04x) " | |
1415 | "log_info(0x%08x)\n", ioc->name, __func__, | |
1416 | ioc_status, mpi_reply->IOCLogInfo); | |
1417 | rc = -EFAULT; | |
1418 | } | |
1419 | ||
1420 | issue_host_reset: | |
1421 | if (issue_reset) | |
1422 | mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, | |
1423 | FORCE_BIG_HAMMER); | |
1424 | ||
1425 | out: | |
1426 | ||
1427 | if (rc && request_data) | |
1428 | pci_free_consistent(ioc->pdev, request_data_sz, | |
1429 | request_data, request_data_dma); | |
1430 | ||
1431 | ioc->ctl_cmds.status = MPT2_CMD_NOT_USED; | |
1432 | mutex_unlock(&ioc->ctl_cmds.mutex); | |
1433 | return rc; | |
1434 | } | |
1435 | ||
1436 | /** | |
1437 | * _ctl_diag_unregister - application unregister with driver | |
1438 | * @arg - user space buffer containing ioctl content | |
1439 | * | |
1440 | * This will allow the driver to cleanup any memory allocated for diag | |
1441 | * messages and to free up any resources. | |
1442 | */ | |
1443 | static long | |
1444 | _ctl_diag_unregister(void __user *arg) | |
1445 | { | |
1446 | struct mpt2_diag_unregister karg; | |
1447 | struct MPT2SAS_ADAPTER *ioc; | |
1448 | void *request_data; | |
1449 | dma_addr_t request_data_dma; | |
1450 | u32 request_data_sz; | |
1451 | u8 buffer_type; | |
1452 | ||
1453 | if (copy_from_user(&karg, arg, sizeof(karg))) { | |
1454 | printk(KERN_ERR "failure at %s:%d/%s()!\n", | |
1455 | __FILE__, __LINE__, __func__); | |
1456 | return -EFAULT; | |
1457 | } | |
1458 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc) | |
1459 | return -ENODEV; | |
1460 | ||
1461 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name, | |
1462 | __func__)); | |
1463 | ||
1464 | buffer_type = karg.unique_id & 0x000000ff; | |
1465 | if (!_ctl_diag_capability(ioc, buffer_type)) { | |
1466 | printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for " | |
1467 | "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); | |
1468 | return -EPERM; | |
1469 | } | |
1470 | ||
1471 | if ((ioc->diag_buffer_status[buffer_type] & | |
1472 | MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) { | |
1473 | printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) is not " | |
1474 | "registered\n", ioc->name, __func__, buffer_type); | |
1475 | return -EINVAL; | |
1476 | } | |
1477 | if ((ioc->diag_buffer_status[buffer_type] & | |
1478 | MPT2_DIAG_BUFFER_IS_RELEASED) == 0) { | |
1479 | printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) has not been " | |
1480 | "released\n", ioc->name, __func__, buffer_type); | |
1481 | return -EINVAL; | |
1482 | } | |
1483 | ||
1484 | if (karg.unique_id != ioc->unique_id[buffer_type]) { | |
1485 | printk(MPT2SAS_ERR_FMT "%s: unique_id(0x%08x) is not " | |
1486 | "registered\n", ioc->name, __func__, karg.unique_id); | |
1487 | return -EINVAL; | |
1488 | } | |
1489 | ||
1490 | request_data = ioc->diag_buffer[buffer_type]; | |
1491 | if (!request_data) { | |
1492 | printk(MPT2SAS_ERR_FMT "%s: doesn't have memory allocated for " | |
1493 | "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); | |
1494 | return -ENOMEM; | |
1495 | } | |
1496 | ||
1497 | request_data_sz = ioc->diag_buffer_sz[buffer_type]; | |
1498 | request_data_dma = ioc->diag_buffer_dma[buffer_type]; | |
1499 | pci_free_consistent(ioc->pdev, request_data_sz, | |
1500 | request_data, request_data_dma); | |
1501 | ioc->diag_buffer[buffer_type] = NULL; | |
1502 | ioc->diag_buffer_status[buffer_type] = 0; | |
1503 | return 0; | |
1504 | } | |
1505 | ||
1506 | /** | |
1507 | * _ctl_diag_query - query relevant info associated with diag buffers | |
1508 | * @arg - user space buffer containing ioctl content | |
1509 | * | |
1510 | * The application will send only buffer_type and unique_id. Driver will | |
1511 | * inspect unique_id first, if valid, fill in all the info. If unique_id is | |
1512 | * 0x00, the driver will return info specified by Buffer Type. | |
1513 | */ | |
1514 | static long | |
1515 | _ctl_diag_query(void __user *arg) | |
1516 | { | |
1517 | struct mpt2_diag_query karg; | |
1518 | struct MPT2SAS_ADAPTER *ioc; | |
1519 | void *request_data; | |
1520 | int i; | |
1521 | u8 buffer_type; | |
1522 | ||
1523 | if (copy_from_user(&karg, arg, sizeof(karg))) { | |
1524 | printk(KERN_ERR "failure at %s:%d/%s()!\n", | |
1525 | __FILE__, __LINE__, __func__); | |
1526 | return -EFAULT; | |
1527 | } | |
1528 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc) | |
1529 | return -ENODEV; | |
1530 | ||
1531 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name, | |
1532 | __func__)); | |
1533 | ||
1534 | karg.application_flags = 0; | |
1535 | buffer_type = karg.buffer_type; | |
1536 | ||
1537 | if (!_ctl_diag_capability(ioc, buffer_type)) { | |
1538 | printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for " | |
1539 | "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); | |
1540 | return -EPERM; | |
1541 | } | |
1542 | ||
1543 | if ((ioc->diag_buffer_status[buffer_type] & | |
1544 | MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) { | |
1545 | printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) is not " | |
1546 | "registered\n", ioc->name, __func__, buffer_type); | |
1547 | return -EINVAL; | |
1548 | } | |
1549 | ||
1550 | if (karg.unique_id & 0xffffff00) { | |
1551 | if (karg.unique_id != ioc->unique_id[buffer_type]) { | |
1552 | printk(MPT2SAS_ERR_FMT "%s: unique_id(0x%08x) is not " | |
1553 | "registered\n", ioc->name, __func__, | |
1554 | karg.unique_id); | |
1555 | return -EINVAL; | |
1556 | } | |
1557 | } | |
1558 | ||
1559 | request_data = ioc->diag_buffer[buffer_type]; | |
1560 | if (!request_data) { | |
1561 | printk(MPT2SAS_ERR_FMT "%s: doesn't have buffer for " | |
1562 | "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); | |
1563 | return -ENOMEM; | |
1564 | } | |
1565 | ||
1566 | if (ioc->diag_buffer_status[buffer_type] & MPT2_DIAG_BUFFER_IS_RELEASED) | |
1567 | karg.application_flags = (MPT2_APP_FLAGS_APP_OWNED | | |
1568 | MPT2_APP_FLAGS_BUFFER_VALID); | |
1569 | else | |
1570 | karg.application_flags = (MPT2_APP_FLAGS_APP_OWNED | | |
1571 | MPT2_APP_FLAGS_BUFFER_VALID | | |
1572 | MPT2_APP_FLAGS_FW_BUFFER_ACCESS); | |
1573 | ||
1574 | for (i = 0; i < MPT2_PRODUCT_SPECIFIC_DWORDS; i++) | |
1575 | karg.product_specific[i] = | |
1576 | ioc->product_specific[buffer_type][i]; | |
1577 | ||
1578 | karg.total_buffer_size = ioc->diag_buffer_sz[buffer_type]; | |
1579 | karg.driver_added_buffer_size = 0; | |
1580 | karg.unique_id = ioc->unique_id[buffer_type]; | |
1581 | karg.diagnostic_flags = ioc->diagnostic_flags[buffer_type]; | |
1582 | ||
1583 | if (copy_to_user(arg, &karg, sizeof(struct mpt2_diag_query))) { | |
1584 | printk(MPT2SAS_ERR_FMT "%s: unable to write mpt2_diag_query " | |
1585 | "data @ %p\n", ioc->name, __func__, arg); | |
1586 | return -EFAULT; | |
1587 | } | |
1588 | return 0; | |
1589 | } | |
1590 | ||
1591 | /** | |
99bb214b EM |
1592 | * _ctl_send_release - Diag Release Message |
1593 | * @ioc: per adapter object | |
1594 | * @buffer_type - specifies either TRACE or SNAPSHOT | |
1595 | * @issue_reset - specifies whether host reset is required. | |
635374e7 | 1596 | * |
635374e7 | 1597 | */ |
99bb214b EM |
1598 | static int |
1599 | _ctl_send_release(struct MPT2SAS_ADAPTER *ioc, u8 buffer_type, u8 *issue_reset) | |
635374e7 | 1600 | { |
635374e7 EM |
1601 | Mpi2DiagReleaseRequest_t *mpi_request; |
1602 | Mpi2DiagReleaseReply_t *mpi_reply; | |
635374e7 EM |
1603 | u16 smid; |
1604 | u16 ioc_status; | |
99bb214b EM |
1605 | u32 ioc_state; |
1606 | int rc; | |
1607 | unsigned long timeleft; | |
635374e7 EM |
1608 | |
1609 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name, | |
1610 | __func__)); | |
1611 | ||
99bb214b EM |
1612 | rc = 0; |
1613 | *issue_reset = 0; | |
635374e7 | 1614 | |
99bb214b EM |
1615 | ioc_state = mpt2sas_base_get_iocstate(ioc, 1); |
1616 | if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { | |
1617 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: " | |
1618 | "skipping due to FAULT state\n", ioc->name, | |
1619 | __func__)); | |
1620 | rc = -EAGAIN; | |
1621 | goto out; | |
635374e7 EM |
1622 | } |
1623 | ||
635374e7 EM |
1624 | if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) { |
1625 | printk(MPT2SAS_ERR_FMT "%s: ctl_cmd in use\n", | |
1626 | ioc->name, __func__); | |
1627 | rc = -EAGAIN; | |
1628 | goto out; | |
1629 | } | |
1630 | ||
1631 | smid = mpt2sas_base_get_smid(ioc, ioc->ctl_cb_idx); | |
1632 | if (!smid) { | |
1633 | printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", | |
1634 | ioc->name, __func__); | |
1635 | rc = -EAGAIN; | |
1636 | goto out; | |
1637 | } | |
1638 | ||
635374e7 EM |
1639 | ioc->ctl_cmds.status = MPT2_CMD_PENDING; |
1640 | memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz); | |
1641 | mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); | |
1642 | ioc->ctl_cmds.smid = smid; | |
1643 | ||
1644 | mpi_request->Function = MPI2_FUNCTION_DIAG_RELEASE; | |
1645 | mpi_request->BufferType = buffer_type; | |
1646 | ||
1647 | mpt2sas_base_put_smid_default(ioc, smid, mpi_request->VF_ID); | |
1648 | timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done, | |
1649 | MPT2_IOCTL_DEFAULT_TIMEOUT*HZ); | |
1650 | ||
1651 | if (!(ioc->ctl_cmds.status & MPT2_CMD_COMPLETE)) { | |
1652 | printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name, | |
1653 | __func__); | |
1654 | _debug_dump_mf(mpi_request, | |
1655 | sizeof(Mpi2DiagReleaseRequest_t)/4); | |
1656 | if (!(ioc->ctl_cmds.status & MPT2_CMD_RESET)) | |
99bb214b EM |
1657 | *issue_reset = 1; |
1658 | rc = -EFAULT; | |
1659 | goto out; | |
635374e7 EM |
1660 | } |
1661 | ||
1662 | /* process the completed Reply Message Frame */ | |
1663 | if ((ioc->ctl_cmds.status & MPT2_CMD_REPLY_VALID) == 0) { | |
1664 | printk(MPT2SAS_ERR_FMT "%s: no reply message\n", | |
1665 | ioc->name, __func__); | |
1666 | rc = -EFAULT; | |
1667 | goto out; | |
1668 | } | |
1669 | ||
1670 | mpi_reply = ioc->ctl_cmds.reply; | |
1671 | ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK; | |
1672 | ||
1673 | if (ioc_status == MPI2_IOCSTATUS_SUCCESS) { | |
1674 | ioc->diag_buffer_status[buffer_type] |= | |
1675 | MPT2_DIAG_BUFFER_IS_RELEASED; | |
1676 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: success\n", | |
1677 | ioc->name, __func__)); | |
1678 | } else { | |
1679 | printk(MPT2SAS_DEBUG_FMT "%s: ioc_status(0x%04x) " | |
1680 | "log_info(0x%08x)\n", ioc->name, __func__, | |
1681 | ioc_status, mpi_reply->IOCLogInfo); | |
1682 | rc = -EFAULT; | |
1683 | } | |
1684 | ||
99bb214b EM |
1685 | out: |
1686 | ioc->ctl_cmds.status = MPT2_CMD_NOT_USED; | |
1687 | return rc; | |
1688 | } | |
1689 | ||
1690 | /** | |
1691 | * _ctl_diag_release - request to send Diag Release Message to firmware | |
1692 | * @arg - user space buffer containing ioctl content | |
1693 | * @state - NON_BLOCKING or BLOCKING | |
1694 | * | |
1695 | * This allows ownership of the specified buffer to returned to the driver, | |
1696 | * allowing an application to read the buffer without fear that firmware is | |
1697 | * overwritting information in the buffer. | |
1698 | */ | |
1699 | static long | |
1700 | _ctl_diag_release(void __user *arg, enum block_state state) | |
1701 | { | |
1702 | struct mpt2_diag_release karg; | |
1703 | struct MPT2SAS_ADAPTER *ioc; | |
1704 | void *request_data; | |
1705 | int rc; | |
1706 | u8 buffer_type; | |
1707 | u8 issue_reset = 0; | |
1708 | ||
1709 | if (copy_from_user(&karg, arg, sizeof(karg))) { | |
1710 | printk(KERN_ERR "failure at %s:%d/%s()!\n", | |
1711 | __FILE__, __LINE__, __func__); | |
1712 | return -EFAULT; | |
1713 | } | |
1714 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc) | |
1715 | return -ENODEV; | |
1716 | ||
1717 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name, | |
1718 | __func__)); | |
1719 | ||
1720 | buffer_type = karg.unique_id & 0x000000ff; | |
1721 | if (!_ctl_diag_capability(ioc, buffer_type)) { | |
1722 | printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for " | |
1723 | "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); | |
1724 | return -EPERM; | |
1725 | } | |
1726 | ||
1727 | if ((ioc->diag_buffer_status[buffer_type] & | |
1728 | MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) { | |
1729 | printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) is not " | |
1730 | "registered\n", ioc->name, __func__, buffer_type); | |
1731 | return -EINVAL; | |
1732 | } | |
1733 | ||
1734 | if (karg.unique_id != ioc->unique_id[buffer_type]) { | |
1735 | printk(MPT2SAS_ERR_FMT "%s: unique_id(0x%08x) is not " | |
1736 | "registered\n", ioc->name, __func__, karg.unique_id); | |
1737 | return -EINVAL; | |
1738 | } | |
1739 | ||
1740 | if (ioc->diag_buffer_status[buffer_type] & | |
1741 | MPT2_DIAG_BUFFER_IS_RELEASED) { | |
1742 | printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) " | |
1743 | "is already released\n", ioc->name, __func__, | |
1744 | buffer_type); | |
1745 | return 0; | |
1746 | } | |
1747 | ||
1748 | request_data = ioc->diag_buffer[buffer_type]; | |
1749 | ||
1750 | if (!request_data) { | |
1751 | printk(MPT2SAS_ERR_FMT "%s: doesn't have memory allocated for " | |
1752 | "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); | |
1753 | return -ENOMEM; | |
1754 | } | |
1755 | ||
1756 | /* buffers were released by due to host reset */ | |
1757 | if ((ioc->diag_buffer_status[buffer_type] & | |
1758 | MPT2_DIAG_BUFFER_IS_DIAG_RESET)) { | |
1759 | ioc->diag_buffer_status[buffer_type] |= | |
1760 | MPT2_DIAG_BUFFER_IS_RELEASED; | |
1761 | ioc->diag_buffer_status[buffer_type] &= | |
1762 | ~MPT2_DIAG_BUFFER_IS_DIAG_RESET; | |
1763 | printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) " | |
1764 | "was released due to host reset\n", ioc->name, __func__, | |
1765 | buffer_type); | |
1766 | return 0; | |
1767 | } | |
1768 | ||
1769 | if (state == NON_BLOCKING && !mutex_trylock(&ioc->ctl_cmds.mutex)) | |
1770 | return -EAGAIN; | |
1771 | else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) | |
1772 | return -ERESTARTSYS; | |
1773 | ||
1774 | rc = _ctl_send_release(ioc, buffer_type, &issue_reset); | |
1775 | ||
635374e7 EM |
1776 | if (issue_reset) |
1777 | mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, | |
1778 | FORCE_BIG_HAMMER); | |
1779 | ||
635374e7 EM |
1780 | mutex_unlock(&ioc->ctl_cmds.mutex); |
1781 | return rc; | |
1782 | } | |
1783 | ||
1784 | /** | |
1785 | * _ctl_diag_read_buffer - request for copy of the diag buffer | |
1786 | * @arg - user space buffer containing ioctl content | |
1787 | * @state - NON_BLOCKING or BLOCKING | |
1788 | */ | |
1789 | static long | |
1790 | _ctl_diag_read_buffer(void __user *arg, enum block_state state) | |
1791 | { | |
1792 | struct mpt2_diag_read_buffer karg; | |
1793 | struct mpt2_diag_read_buffer __user *uarg = arg; | |
1794 | struct MPT2SAS_ADAPTER *ioc; | |
1795 | void *request_data, *diag_data; | |
1796 | Mpi2DiagBufferPostRequest_t *mpi_request; | |
1797 | Mpi2DiagBufferPostReply_t *mpi_reply; | |
1798 | int rc, i; | |
1799 | u8 buffer_type; | |
1800 | unsigned long timeleft; | |
1801 | u16 smid; | |
1802 | u16 ioc_status; | |
1803 | u8 issue_reset = 0; | |
1804 | ||
1805 | if (copy_from_user(&karg, arg, sizeof(karg))) { | |
1806 | printk(KERN_ERR "failure at %s:%d/%s()!\n", | |
1807 | __FILE__, __LINE__, __func__); | |
1808 | return -EFAULT; | |
1809 | } | |
1810 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc) | |
1811 | return -ENODEV; | |
1812 | ||
1813 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name, | |
1814 | __func__)); | |
1815 | ||
1816 | buffer_type = karg.unique_id & 0x000000ff; | |
1817 | if (!_ctl_diag_capability(ioc, buffer_type)) { | |
1818 | printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for " | |
1819 | "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); | |
1820 | return -EPERM; | |
1821 | } | |
1822 | ||
1823 | if (karg.unique_id != ioc->unique_id[buffer_type]) { | |
1824 | printk(MPT2SAS_ERR_FMT "%s: unique_id(0x%08x) is not " | |
1825 | "registered\n", ioc->name, __func__, karg.unique_id); | |
1826 | return -EINVAL; | |
1827 | } | |
1828 | ||
1829 | request_data = ioc->diag_buffer[buffer_type]; | |
1830 | if (!request_data) { | |
1831 | printk(MPT2SAS_ERR_FMT "%s: doesn't have buffer for " | |
1832 | "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); | |
1833 | return -ENOMEM; | |
1834 | } | |
1835 | ||
1836 | if ((karg.starting_offset % 4) || (karg.bytes_to_read % 4)) { | |
1837 | printk(MPT2SAS_ERR_FMT "%s: either the starting_offset " | |
1838 | "or bytes_to_read are not 4 byte aligned\n", ioc->name, | |
1839 | __func__); | |
1840 | return -EINVAL; | |
1841 | } | |
1842 | ||
1843 | diag_data = (void *)(request_data + karg.starting_offset); | |
1844 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: diag_buffer(%p), " | |
1845 | "offset(%d), sz(%d)\n", ioc->name, __func__, | |
1846 | diag_data, karg.starting_offset, karg.bytes_to_read)); | |
1847 | ||
1848 | if (copy_to_user((void __user *)uarg->diagnostic_data, | |
1849 | diag_data, karg.bytes_to_read)) { | |
1850 | printk(MPT2SAS_ERR_FMT "%s: Unable to write " | |
1851 | "mpt_diag_read_buffer_t data @ %p\n", ioc->name, | |
1852 | __func__, diag_data); | |
1853 | return -EFAULT; | |
1854 | } | |
1855 | ||
1856 | if ((karg.flags & MPT2_FLAGS_REREGISTER) == 0) | |
1857 | return 0; | |
1858 | ||
1859 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: Reregister " | |
1860 | "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type)); | |
1861 | if ((ioc->diag_buffer_status[buffer_type] & | |
1862 | MPT2_DIAG_BUFFER_IS_RELEASED) == 0) { | |
1863 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: " | |
1864 | "buffer_type(0x%02x) is still registered\n", ioc->name, | |
1865 | __func__, buffer_type)); | |
1866 | return 0; | |
1867 | } | |
1868 | /* Get a free request frame and save the message context. | |
1869 | */ | |
1870 | if (state == NON_BLOCKING && !mutex_trylock(&ioc->ctl_cmds.mutex)) | |
1871 | return -EAGAIN; | |
1872 | else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) | |
1873 | return -ERESTARTSYS; | |
1874 | ||
1875 | if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) { | |
1876 | printk(MPT2SAS_ERR_FMT "%s: ctl_cmd in use\n", | |
1877 | ioc->name, __func__); | |
1878 | rc = -EAGAIN; | |
1879 | goto out; | |
1880 | } | |
1881 | ||
1882 | smid = mpt2sas_base_get_smid(ioc, ioc->ctl_cb_idx); | |
1883 | if (!smid) { | |
1884 | printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", | |
1885 | ioc->name, __func__); | |
1886 | rc = -EAGAIN; | |
1887 | goto out; | |
1888 | } | |
1889 | ||
1890 | rc = 0; | |
1891 | ioc->ctl_cmds.status = MPT2_CMD_PENDING; | |
1892 | memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz); | |
1893 | mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); | |
1894 | ioc->ctl_cmds.smid = smid; | |
1895 | ||
1896 | mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST; | |
1897 | mpi_request->BufferType = buffer_type; | |
1898 | mpi_request->BufferLength = | |
1899 | cpu_to_le32(ioc->diag_buffer_sz[buffer_type]); | |
1900 | mpi_request->BufferAddress = | |
1901 | cpu_to_le64(ioc->diag_buffer_dma[buffer_type]); | |
1902 | for (i = 0; i < MPT2_PRODUCT_SPECIFIC_DWORDS; i++) | |
1903 | mpi_request->ProductSpecific[i] = | |
1904 | cpu_to_le32(ioc->product_specific[buffer_type][i]); | |
1905 | ||
1906 | mpt2sas_base_put_smid_default(ioc, smid, mpi_request->VF_ID); | |
1907 | timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done, | |
1908 | MPT2_IOCTL_DEFAULT_TIMEOUT*HZ); | |
1909 | ||
1910 | if (!(ioc->ctl_cmds.status & MPT2_CMD_COMPLETE)) { | |
1911 | printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name, | |
1912 | __func__); | |
1913 | _debug_dump_mf(mpi_request, | |
1914 | sizeof(Mpi2DiagBufferPostRequest_t)/4); | |
1915 | if (!(ioc->ctl_cmds.status & MPT2_CMD_RESET)) | |
1916 | issue_reset = 1; | |
1917 | goto issue_host_reset; | |
1918 | } | |
1919 | ||
1920 | /* process the completed Reply Message Frame */ | |
1921 | if ((ioc->ctl_cmds.status & MPT2_CMD_REPLY_VALID) == 0) { | |
1922 | printk(MPT2SAS_ERR_FMT "%s: no reply message\n", | |
1923 | ioc->name, __func__); | |
1924 | rc = -EFAULT; | |
1925 | goto out; | |
1926 | } | |
1927 | ||
1928 | mpi_reply = ioc->ctl_cmds.reply; | |
1929 | ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK; | |
1930 | ||
1931 | if (ioc_status == MPI2_IOCSTATUS_SUCCESS) { | |
1932 | ioc->diag_buffer_status[buffer_type] |= | |
1933 | MPT2_DIAG_BUFFER_IS_REGISTERED; | |
1934 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: success\n", | |
1935 | ioc->name, __func__)); | |
1936 | } else { | |
1937 | printk(MPT2SAS_DEBUG_FMT "%s: ioc_status(0x%04x) " | |
1938 | "log_info(0x%08x)\n", ioc->name, __func__, | |
1939 | ioc_status, mpi_reply->IOCLogInfo); | |
1940 | rc = -EFAULT; | |
1941 | } | |
1942 | ||
1943 | issue_host_reset: | |
1944 | if (issue_reset) | |
1945 | mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, | |
1946 | FORCE_BIG_HAMMER); | |
1947 | ||
1948 | out: | |
1949 | ||
1950 | ioc->ctl_cmds.status = MPT2_CMD_NOT_USED; | |
1951 | mutex_unlock(&ioc->ctl_cmds.mutex); | |
1952 | return rc; | |
1953 | } | |
1954 | ||
1955 | /** | |
1956 | * _ctl_ioctl_main - main ioctl entry point | |
1957 | * @file - (struct file) | |
1958 | * @cmd - ioctl opcode | |
1959 | * @arg - | |
1960 | */ | |
1961 | static long | |
1962 | _ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg) | |
1963 | { | |
1964 | enum block_state state; | |
1965 | long ret = -EINVAL; | |
635374e7 EM |
1966 | |
1967 | state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : | |
1968 | BLOCKING; | |
1969 | ||
1970 | switch (cmd) { | |
1971 | case MPT2IOCINFO: | |
1972 | if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_iocinfo)) | |
1973 | ret = _ctl_getiocinfo(arg); | |
1974 | break; | |
1975 | case MPT2COMMAND: | |
1976 | { | |
1977 | struct mpt2_ioctl_command karg; | |
1978 | struct mpt2_ioctl_command __user *uarg; | |
1979 | struct MPT2SAS_ADAPTER *ioc; | |
1980 | ||
1981 | if (copy_from_user(&karg, arg, sizeof(karg))) { | |
1982 | printk(KERN_ERR "failure at %s:%d/%s()!\n", | |
1983 | __FILE__, __LINE__, __func__); | |
1984 | return -EFAULT; | |
1985 | } | |
1986 | ||
1987 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || | |
1988 | !ioc) | |
1989 | return -ENODEV; | |
1990 | ||
155dd4c7 | 1991 | if (ioc->shost_recovery) |
635374e7 | 1992 | return -EAGAIN; |
635374e7 EM |
1993 | |
1994 | if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_command)) { | |
1995 | uarg = arg; | |
1996 | ret = _ctl_do_mpt_command(ioc, karg, &uarg->mf, state); | |
1997 | } | |
1998 | break; | |
1999 | } | |
2000 | case MPT2EVENTQUERY: | |
2001 | if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_eventquery)) | |
2002 | ret = _ctl_eventquery(arg); | |
2003 | break; | |
2004 | case MPT2EVENTENABLE: | |
2005 | if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_eventenable)) | |
2006 | ret = _ctl_eventenable(arg); | |
2007 | break; | |
2008 | case MPT2EVENTREPORT: | |
2009 | ret = _ctl_eventreport(arg); | |
2010 | break; | |
2011 | case MPT2HARDRESET: | |
2012 | if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_diag_reset)) | |
2013 | ret = _ctl_do_reset(arg); | |
2014 | break; | |
2015 | case MPT2BTDHMAPPING: | |
2016 | if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_btdh_mapping)) | |
2017 | ret = _ctl_btdh_mapping(arg); | |
2018 | break; | |
2019 | case MPT2DIAGREGISTER: | |
2020 | if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_register)) | |
2021 | ret = _ctl_diag_register(arg, state); | |
2022 | break; | |
2023 | case MPT2DIAGUNREGISTER: | |
2024 | if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_unregister)) | |
2025 | ret = _ctl_diag_unregister(arg); | |
2026 | break; | |
2027 | case MPT2DIAGQUERY: | |
2028 | if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_query)) | |
2029 | ret = _ctl_diag_query(arg); | |
2030 | break; | |
2031 | case MPT2DIAGRELEASE: | |
2032 | if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_release)) | |
2033 | ret = _ctl_diag_release(arg, state); | |
2034 | break; | |
2035 | case MPT2DIAGREADBUFFER: | |
2036 | if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_read_buffer)) | |
2037 | ret = _ctl_diag_read_buffer(arg, state); | |
2038 | break; | |
2039 | default: | |
2040 | { | |
2041 | struct mpt2_ioctl_command karg; | |
2042 | struct MPT2SAS_ADAPTER *ioc; | |
2043 | ||
2044 | if (copy_from_user(&karg, arg, sizeof(karg))) { | |
2045 | printk(KERN_ERR "failure at %s:%d/%s()!\n", | |
2046 | __FILE__, __LINE__, __func__); | |
2047 | return -EFAULT; | |
2048 | } | |
2049 | ||
2050 | if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || | |
2051 | !ioc) | |
2052 | return -ENODEV; | |
2053 | ||
2054 | dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT | |
2055 | "unsupported ioctl opcode(0x%08x)\n", ioc->name, cmd)); | |
2056 | break; | |
2057 | } | |
2058 | } | |
2059 | return ret; | |
2060 | } | |
2061 | ||
2062 | /** | |
2063 | * _ctl_ioctl - main ioctl entry point (unlocked) | |
2064 | * @file - (struct file) | |
2065 | * @cmd - ioctl opcode | |
2066 | * @arg - | |
2067 | */ | |
2068 | static long | |
2069 | _ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg) | |
2070 | { | |
2071 | long ret; | |
2072 | lock_kernel(); | |
2073 | ret = _ctl_ioctl_main(file, cmd, (void __user *)arg); | |
2074 | unlock_kernel(); | |
2075 | return ret; | |
2076 | } | |
2077 | ||
2078 | #ifdef CONFIG_COMPAT | |
2079 | /** | |
2080 | * _ctl_compat_mpt_command - convert 32bit pointers to 64bit. | |
2081 | * @file - (struct file) | |
2082 | * @cmd - ioctl opcode | |
2083 | * @arg - (struct mpt2_ioctl_command32) | |
2084 | * | |
2085 | * MPT2COMMAND32 - Handle 32bit applications running on 64bit os. | |
2086 | */ | |
2087 | static long | |
2088 | _ctl_compat_mpt_command(struct file *file, unsigned cmd, unsigned long arg) | |
2089 | { | |
2090 | struct mpt2_ioctl_command32 karg32; | |
2091 | struct mpt2_ioctl_command32 __user *uarg; | |
2092 | struct mpt2_ioctl_command karg; | |
2093 | struct MPT2SAS_ADAPTER *ioc; | |
2094 | enum block_state state; | |
635374e7 EM |
2095 | |
2096 | if (_IOC_SIZE(cmd) != sizeof(struct mpt2_ioctl_command32)) | |
2097 | return -EINVAL; | |
2098 | ||
2099 | uarg = (struct mpt2_ioctl_command32 __user *) arg; | |
2100 | ||
2101 | if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32))) { | |
2102 | printk(KERN_ERR "failure at %s:%d/%s()!\n", | |
2103 | __FILE__, __LINE__, __func__); | |
2104 | return -EFAULT; | |
2105 | } | |
2106 | if (_ctl_verify_adapter(karg32.hdr.ioc_number, &ioc) == -1 || !ioc) | |
2107 | return -ENODEV; | |
2108 | ||
155dd4c7 | 2109 | if (ioc->shost_recovery) |
635374e7 | 2110 | return -EAGAIN; |
635374e7 EM |
2111 | |
2112 | memset(&karg, 0, sizeof(struct mpt2_ioctl_command)); | |
2113 | karg.hdr.ioc_number = karg32.hdr.ioc_number; | |
2114 | karg.hdr.port_number = karg32.hdr.port_number; | |
2115 | karg.hdr.max_data_size = karg32.hdr.max_data_size; | |
2116 | karg.timeout = karg32.timeout; | |
2117 | karg.max_reply_bytes = karg32.max_reply_bytes; | |
2118 | karg.data_in_size = karg32.data_in_size; | |
2119 | karg.data_out_size = karg32.data_out_size; | |
2120 | karg.max_sense_bytes = karg32.max_sense_bytes; | |
2121 | karg.data_sge_offset = karg32.data_sge_offset; | |
2122 | memcpy(&karg.reply_frame_buf_ptr, &karg32.reply_frame_buf_ptr, | |
2123 | sizeof(uint32_t)); | |
2124 | memcpy(&karg.data_in_buf_ptr, &karg32.data_in_buf_ptr, | |
2125 | sizeof(uint32_t)); | |
2126 | memcpy(&karg.data_out_buf_ptr, &karg32.data_out_buf_ptr, | |
2127 | sizeof(uint32_t)); | |
2128 | memcpy(&karg.sense_data_ptr, &karg32.sense_data_ptr, | |
2129 | sizeof(uint32_t)); | |
2130 | state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING; | |
2131 | return _ctl_do_mpt_command(ioc, karg, &uarg->mf, state); | |
2132 | } | |
2133 | ||
2134 | /** | |
2135 | * _ctl_ioctl_compat - main ioctl entry point (compat) | |
2136 | * @file - | |
2137 | * @cmd - | |
2138 | * @arg - | |
2139 | * | |
2140 | * This routine handles 32 bit applications in 64bit os. | |
2141 | */ | |
2142 | static long | |
2143 | _ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg) | |
2144 | { | |
2145 | long ret; | |
2146 | lock_kernel(); | |
2147 | if (cmd == MPT2COMMAND32) | |
2148 | ret = _ctl_compat_mpt_command(file, cmd, arg); | |
2149 | else | |
2150 | ret = _ctl_ioctl_main(file, cmd, (void __user *)arg); | |
2151 | unlock_kernel(); | |
2152 | return ret; | |
2153 | } | |
2154 | #endif | |
2155 | ||
2156 | /* scsi host attributes */ | |
2157 | ||
2158 | /** | |
2159 | * _ctl_version_fw_show - firmware version | |
2160 | * @cdev - pointer to embedded class device | |
2161 | * @buf - the buffer returned | |
2162 | * | |
2163 | * A sysfs 'read-only' shost attribute. | |
2164 | */ | |
2165 | static ssize_t | |
2166 | _ctl_version_fw_show(struct device *cdev, struct device_attribute *attr, | |
2167 | char *buf) | |
2168 | { | |
2169 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2170 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); | |
2171 | ||
2172 | return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n", | |
2173 | (ioc->facts.FWVersion.Word & 0xFF000000) >> 24, | |
2174 | (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16, | |
2175 | (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8, | |
2176 | ioc->facts.FWVersion.Word & 0x000000FF); | |
2177 | } | |
2178 | static DEVICE_ATTR(version_fw, S_IRUGO, _ctl_version_fw_show, NULL); | |
2179 | ||
2180 | /** | |
2181 | * _ctl_version_bios_show - bios version | |
2182 | * @cdev - pointer to embedded class device | |
2183 | * @buf - the buffer returned | |
2184 | * | |
2185 | * A sysfs 'read-only' shost attribute. | |
2186 | */ | |
2187 | static ssize_t | |
2188 | _ctl_version_bios_show(struct device *cdev, struct device_attribute *attr, | |
2189 | char *buf) | |
2190 | { | |
2191 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2192 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); | |
2193 | ||
2194 | u32 version = le32_to_cpu(ioc->bios_pg3.BiosVersion); | |
2195 | ||
2196 | return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n", | |
2197 | (version & 0xFF000000) >> 24, | |
2198 | (version & 0x00FF0000) >> 16, | |
2199 | (version & 0x0000FF00) >> 8, | |
2200 | version & 0x000000FF); | |
2201 | } | |
2202 | static DEVICE_ATTR(version_bios, S_IRUGO, _ctl_version_bios_show, NULL); | |
2203 | ||
2204 | /** | |
2205 | * _ctl_version_mpi_show - MPI (message passing interface) version | |
2206 | * @cdev - pointer to embedded class device | |
2207 | * @buf - the buffer returned | |
2208 | * | |
2209 | * A sysfs 'read-only' shost attribute. | |
2210 | */ | |
2211 | static ssize_t | |
2212 | _ctl_version_mpi_show(struct device *cdev, struct device_attribute *attr, | |
2213 | char *buf) | |
2214 | { | |
2215 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2216 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); | |
2217 | ||
2218 | return snprintf(buf, PAGE_SIZE, "%03x.%02x\n", | |
2219 | ioc->facts.MsgVersion, ioc->facts.HeaderVersion >> 8); | |
2220 | } | |
2221 | static DEVICE_ATTR(version_mpi, S_IRUGO, _ctl_version_mpi_show, NULL); | |
2222 | ||
2223 | /** | |
2224 | * _ctl_version_product_show - product name | |
2225 | * @cdev - pointer to embedded class device | |
2226 | * @buf - the buffer returned | |
2227 | * | |
2228 | * A sysfs 'read-only' shost attribute. | |
2229 | */ | |
2230 | static ssize_t | |
2231 | _ctl_version_product_show(struct device *cdev, struct device_attribute *attr, | |
2232 | char *buf) | |
2233 | { | |
2234 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2235 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); | |
2236 | ||
2237 | return snprintf(buf, 16, "%s\n", ioc->manu_pg0.ChipName); | |
2238 | } | |
2239 | static DEVICE_ATTR(version_product, S_IRUGO, | |
2240 | _ctl_version_product_show, NULL); | |
2241 | ||
2242 | /** | |
2243 | * _ctl_version_nvdata_persistent_show - ndvata persistent version | |
2244 | * @cdev - pointer to embedded class device | |
2245 | * @buf - the buffer returned | |
2246 | * | |
2247 | * A sysfs 'read-only' shost attribute. | |
2248 | */ | |
2249 | static ssize_t | |
2250 | _ctl_version_nvdata_persistent_show(struct device *cdev, | |
2251 | struct device_attribute *attr, char *buf) | |
2252 | { | |
2253 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2254 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); | |
2255 | ||
2256 | return snprintf(buf, PAGE_SIZE, "%02xh\n", | |
2257 | le16_to_cpu(ioc->iounit_pg0.NvdataVersionPersistent.Word)); | |
2258 | } | |
2259 | static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO, | |
2260 | _ctl_version_nvdata_persistent_show, NULL); | |
2261 | ||
2262 | /** | |
2263 | * _ctl_version_nvdata_default_show - nvdata default version | |
2264 | * @cdev - pointer to embedded class device | |
2265 | * @buf - the buffer returned | |
2266 | * | |
2267 | * A sysfs 'read-only' shost attribute. | |
2268 | */ | |
2269 | static ssize_t | |
2270 | _ctl_version_nvdata_default_show(struct device *cdev, | |
2271 | struct device_attribute *attr, char *buf) | |
2272 | { | |
2273 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2274 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); | |
2275 | ||
2276 | return snprintf(buf, PAGE_SIZE, "%02xh\n", | |
2277 | le16_to_cpu(ioc->iounit_pg0.NvdataVersionDefault.Word)); | |
2278 | } | |
2279 | static DEVICE_ATTR(version_nvdata_default, S_IRUGO, | |
2280 | _ctl_version_nvdata_default_show, NULL); | |
2281 | ||
2282 | /** | |
2283 | * _ctl_board_name_show - board name | |
2284 | * @cdev - pointer to embedded class device | |
2285 | * @buf - the buffer returned | |
2286 | * | |
2287 | * A sysfs 'read-only' shost attribute. | |
2288 | */ | |
2289 | static ssize_t | |
2290 | _ctl_board_name_show(struct device *cdev, struct device_attribute *attr, | |
2291 | char *buf) | |
2292 | { | |
2293 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2294 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); | |
2295 | ||
2296 | return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardName); | |
2297 | } | |
2298 | static DEVICE_ATTR(board_name, S_IRUGO, _ctl_board_name_show, NULL); | |
2299 | ||
2300 | /** | |
2301 | * _ctl_board_assembly_show - board assembly 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_assembly_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.BoardAssembly); | |
2315 | } | |
2316 | static DEVICE_ATTR(board_assembly, S_IRUGO, | |
2317 | _ctl_board_assembly_show, NULL); | |
2318 | ||
2319 | /** | |
2320 | * _ctl_board_tracer_show - board tracer number | |
2321 | * @cdev - pointer to embedded class device | |
2322 | * @buf - the buffer returned | |
2323 | * | |
2324 | * A sysfs 'read-only' shost attribute. | |
2325 | */ | |
2326 | static ssize_t | |
2327 | _ctl_board_tracer_show(struct device *cdev, struct device_attribute *attr, | |
2328 | char *buf) | |
2329 | { | |
2330 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2331 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); | |
2332 | ||
2333 | return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardTracerNumber); | |
2334 | } | |
2335 | static DEVICE_ATTR(board_tracer, S_IRUGO, | |
2336 | _ctl_board_tracer_show, NULL); | |
2337 | ||
2338 | /** | |
2339 | * _ctl_io_delay_show - io missing delay | |
2340 | * @cdev - pointer to embedded class device | |
2341 | * @buf - the buffer returned | |
2342 | * | |
2343 | * This is for firmware implemention for deboucing device | |
2344 | * removal events. | |
2345 | * | |
2346 | * A sysfs 'read-only' shost attribute. | |
2347 | */ | |
2348 | static ssize_t | |
2349 | _ctl_io_delay_show(struct device *cdev, struct device_attribute *attr, | |
2350 | char *buf) | |
2351 | { | |
2352 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2353 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); | |
2354 | ||
2355 | return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay); | |
2356 | } | |
2357 | static DEVICE_ATTR(io_delay, S_IRUGO, | |
2358 | _ctl_io_delay_show, NULL); | |
2359 | ||
2360 | /** | |
2361 | * _ctl_device_delay_show - device missing delay | |
2362 | * @cdev - pointer to embedded class device | |
2363 | * @buf - the buffer returned | |
2364 | * | |
2365 | * This is for firmware implemention for deboucing device | |
2366 | * removal events. | |
2367 | * | |
2368 | * A sysfs 'read-only' shost attribute. | |
2369 | */ | |
2370 | static ssize_t | |
2371 | _ctl_device_delay_show(struct device *cdev, struct device_attribute *attr, | |
2372 | char *buf) | |
2373 | { | |
2374 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2375 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); | |
2376 | ||
2377 | return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay); | |
2378 | } | |
2379 | static DEVICE_ATTR(device_delay, S_IRUGO, | |
2380 | _ctl_device_delay_show, NULL); | |
2381 | ||
2382 | /** | |
2383 | * _ctl_fw_queue_depth_show - global credits | |
2384 | * @cdev - pointer to embedded class device | |
2385 | * @buf - the buffer returned | |
2386 | * | |
2387 | * This is firmware queue depth limit | |
2388 | * | |
2389 | * A sysfs 'read-only' shost attribute. | |
2390 | */ | |
2391 | static ssize_t | |
2392 | _ctl_fw_queue_depth_show(struct device *cdev, struct device_attribute *attr, | |
2393 | char *buf) | |
2394 | { | |
2395 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2396 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); | |
2397 | ||
2398 | return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->facts.RequestCredit); | |
2399 | } | |
2400 | static DEVICE_ATTR(fw_queue_depth, S_IRUGO, | |
2401 | _ctl_fw_queue_depth_show, NULL); | |
2402 | ||
2403 | /** | |
2404 | * _ctl_sas_address_show - sas address | |
2405 | * @cdev - pointer to embedded class device | |
2406 | * @buf - the buffer returned | |
2407 | * | |
2408 | * This is the controller sas address | |
2409 | * | |
2410 | * A sysfs 'read-only' shost attribute. | |
2411 | */ | |
2412 | static ssize_t | |
2413 | _ctl_host_sas_address_show(struct device *cdev, struct device_attribute *attr, | |
2414 | char *buf) | |
2415 | { | |
2416 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2417 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); | |
2418 | ||
2419 | return snprintf(buf, PAGE_SIZE, "0x%016llx\n", | |
2420 | (unsigned long long)ioc->sas_hba.sas_address); | |
2421 | } | |
2422 | static DEVICE_ATTR(host_sas_address, S_IRUGO, | |
2423 | _ctl_host_sas_address_show, NULL); | |
2424 | ||
2425 | /** | |
2426 | * _ctl_logging_level_show - logging level | |
2427 | * @cdev - pointer to embedded class device | |
2428 | * @buf - the buffer returned | |
2429 | * | |
2430 | * A sysfs 'read/write' shost attribute. | |
2431 | */ | |
2432 | static ssize_t | |
2433 | _ctl_logging_level_show(struct device *cdev, struct device_attribute *attr, | |
2434 | char *buf) | |
2435 | { | |
2436 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2437 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); | |
2438 | ||
2439 | return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->logging_level); | |
2440 | } | |
2441 | static ssize_t | |
2442 | _ctl_logging_level_store(struct device *cdev, struct device_attribute *attr, | |
2443 | const char *buf, size_t count) | |
2444 | { | |
2445 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2446 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); | |
2447 | int val = 0; | |
2448 | ||
2449 | if (sscanf(buf, "%x", &val) != 1) | |
2450 | return -EINVAL; | |
2451 | ||
2452 | ioc->logging_level = val; | |
2453 | printk(MPT2SAS_INFO_FMT "logging_level=%08xh\n", ioc->name, | |
2454 | ioc->logging_level); | |
2455 | return strlen(buf); | |
2456 | } | |
2457 | static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR, | |
2458 | _ctl_logging_level_show, _ctl_logging_level_store); | |
2459 | ||
2460 | struct device_attribute *mpt2sas_host_attrs[] = { | |
2461 | &dev_attr_version_fw, | |
2462 | &dev_attr_version_bios, | |
2463 | &dev_attr_version_mpi, | |
2464 | &dev_attr_version_product, | |
2465 | &dev_attr_version_nvdata_persistent, | |
2466 | &dev_attr_version_nvdata_default, | |
2467 | &dev_attr_board_name, | |
2468 | &dev_attr_board_assembly, | |
2469 | &dev_attr_board_tracer, | |
2470 | &dev_attr_io_delay, | |
2471 | &dev_attr_device_delay, | |
2472 | &dev_attr_logging_level, | |
2473 | &dev_attr_fw_queue_depth, | |
2474 | &dev_attr_host_sas_address, | |
2475 | NULL, | |
2476 | }; | |
2477 | ||
2478 | /* device attributes */ | |
2479 | ||
2480 | /** | |
2481 | * _ctl_device_sas_address_show - sas address | |
2482 | * @cdev - pointer to embedded class device | |
2483 | * @buf - the buffer returned | |
2484 | * | |
2485 | * This is the sas address for the target | |
2486 | * | |
2487 | * A sysfs 'read-only' shost attribute. | |
2488 | */ | |
2489 | static ssize_t | |
2490 | _ctl_device_sas_address_show(struct device *dev, struct device_attribute *attr, | |
2491 | char *buf) | |
2492 | { | |
2493 | struct scsi_device *sdev = to_scsi_device(dev); | |
2494 | struct MPT2SAS_DEVICE *sas_device_priv_data = sdev->hostdata; | |
2495 | ||
2496 | return snprintf(buf, PAGE_SIZE, "0x%016llx\n", | |
2497 | (unsigned long long)sas_device_priv_data->sas_target->sas_address); | |
2498 | } | |
2499 | static DEVICE_ATTR(sas_address, S_IRUGO, _ctl_device_sas_address_show, NULL); | |
2500 | ||
2501 | /** | |
2502 | * _ctl_device_handle_show - device handle | |
2503 | * @cdev - pointer to embedded class device | |
2504 | * @buf - the buffer returned | |
2505 | * | |
2506 | * This is the firmware assigned device handle | |
2507 | * | |
2508 | * A sysfs 'read-only' shost attribute. | |
2509 | */ | |
2510 | static ssize_t | |
2511 | _ctl_device_handle_show(struct device *dev, struct device_attribute *attr, | |
2512 | char *buf) | |
2513 | { | |
2514 | struct scsi_device *sdev = to_scsi_device(dev); | |
2515 | struct MPT2SAS_DEVICE *sas_device_priv_data = sdev->hostdata; | |
2516 | ||
2517 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", | |
2518 | sas_device_priv_data->sas_target->handle); | |
2519 | } | |
2520 | static DEVICE_ATTR(sas_device_handle, S_IRUGO, _ctl_device_handle_show, NULL); | |
2521 | ||
2522 | struct device_attribute *mpt2sas_dev_attrs[] = { | |
2523 | &dev_attr_sas_address, | |
2524 | &dev_attr_sas_device_handle, | |
2525 | NULL, | |
2526 | }; | |
2527 | ||
2528 | static const struct file_operations ctl_fops = { | |
2529 | .owner = THIS_MODULE, | |
2530 | .unlocked_ioctl = _ctl_ioctl, | |
2531 | .release = _ctl_release, | |
2532 | .poll = _ctl_poll, | |
2533 | .fasync = _ctl_fasync, | |
2534 | #ifdef CONFIG_COMPAT | |
2535 | .compat_ioctl = _ctl_ioctl_compat, | |
2536 | #endif | |
2537 | }; | |
2538 | ||
2539 | static struct miscdevice ctl_dev = { | |
2540 | .minor = MPT2SAS_MINOR, | |
2541 | .name = MPT2SAS_DEV_NAME, | |
2542 | .fops = &ctl_fops, | |
2543 | }; | |
2544 | ||
2545 | /** | |
2546 | * mpt2sas_ctl_init - main entry point for ctl. | |
2547 | * | |
2548 | */ | |
2549 | void | |
2550 | mpt2sas_ctl_init(void) | |
2551 | { | |
2552 | async_queue = NULL; | |
2553 | if (misc_register(&ctl_dev) < 0) | |
2554 | printk(KERN_ERR "%s can't register misc device [minor=%d]\n", | |
2555 | MPT2SAS_DRIVER_NAME, MPT2SAS_MINOR); | |
2556 | ||
2557 | init_waitqueue_head(&ctl_poll_wait); | |
2558 | } | |
2559 | ||
2560 | /** | |
2561 | * mpt2sas_ctl_exit - exit point for ctl | |
2562 | * | |
2563 | */ | |
2564 | void | |
2565 | mpt2sas_ctl_exit(void) | |
2566 | { | |
2567 | struct MPT2SAS_ADAPTER *ioc; | |
2568 | int i; | |
2569 | ||
ba33fadf | 2570 | list_for_each_entry(ioc, &mpt2sas_ioc_list, list) { |
635374e7 EM |
2571 | |
2572 | /* free memory associated to diag buffers */ | |
2573 | for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) { | |
2574 | if (!ioc->diag_buffer[i]) | |
2575 | continue; | |
2576 | pci_free_consistent(ioc->pdev, ioc->diag_buffer_sz[i], | |
2577 | ioc->diag_buffer[i], ioc->diag_buffer_dma[i]); | |
2578 | ioc->diag_buffer[i] = NULL; | |
2579 | ioc->diag_buffer_status[i] = 0; | |
2580 | } | |
2581 | ||
2582 | kfree(ioc->event_log); | |
2583 | } | |
2584 | misc_deregister(&ctl_dev); | |
2585 | } | |
2586 |