2 * Management Module Support for MPT (Message Passing Technology) based
5 * This code is based on drivers/scsi/mpt3sas/mpt3sas_ctl.c
6 * Copyright (C) 2012-2014 LSI Corporation
7 * Copyright (C) 2013-2014 Avago Technologies
8 * (mailto: MPT-FusionLinux.pdl@avagotech.com)
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
21 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
22 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
23 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
24 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
25 * solely responsible for determining the appropriateness of using and
26 * distributing the Program and assumes all risks associated with its
27 * exercise of rights under this Agreement, including but not limited to
28 * the risks and costs of program errors, damage to or loss of data,
29 * programs or equipment, and unavailability or interruption of operations.
31 * DISCLAIMER OF LIABILITY
32 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
33 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
35 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
36 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
37 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
38 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
40 * You should have received a copy of the GNU General Public License
41 * along with this program; if not, write to the Free Software
42 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
46 #include <linux/kernel.h>
47 #include <linux/module.h>
48 #include <linux/errno.h>
49 #include <linux/init.h>
50 #include <linux/slab.h>
51 #include <linux/types.h>
52 #include <linux/pci.h>
53 #include <linux/delay.h>
54 #include <linux/compat.h>
55 #include <linux/poll.h>
58 #include <linux/uaccess.h>
60 #include "mpt3sas_base.h"
61 #include "mpt3sas_ctl.h"
64 static struct fasync_struct *async_queue;
65 static DECLARE_WAIT_QUEUE_HEAD(ctl_poll_wait);
69 * enum block_state - blocking state
70 * @NON_BLOCKING: non blocking
73 * These states are for ioctls that need to wait for a response
74 * from firmware, so they probably require sleep.
82 * _ctl_sas_device_find_by_handle - sas device search
83 * @ioc: per adapter object
84 * @handle: sas device handle (assigned by firmware)
85 * Context: Calling function should acquire ioc->sas_device_lock
87 * This searches for sas_device based on sas_address, then return sas_device
90 static struct _sas_device *
91 _ctl_sas_device_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
93 struct _sas_device *sas_device, *r;
96 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
97 if (sas_device->handle != handle)
108 * _ctl_display_some_debug - debug routine
109 * @ioc: per adapter object
110 * @smid: system request message index
111 * @calling_function_name: string pass from calling function
112 * @mpi_reply: reply message frame
115 * Function for displaying debug info helpful when debugging issues
119 _ctl_display_some_debug(struct MPT3SAS_ADAPTER *ioc, u16 smid,
120 char *calling_function_name, MPI2DefaultReply_t *mpi_reply)
122 Mpi2ConfigRequest_t *mpi_request;
125 if (!(ioc->logging_level & MPT_DEBUG_IOCTL))
128 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
129 switch (mpi_request->Function) {
130 case MPI2_FUNCTION_SCSI_IO_REQUEST:
132 Mpi2SCSIIORequest_t *scsi_request =
133 (Mpi2SCSIIORequest_t *)mpi_request;
135 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
136 "scsi_io, cmd(0x%02x), cdb_len(%d)",
137 scsi_request->CDB.CDB32[0],
138 le16_to_cpu(scsi_request->IoFlags) & 0xF);
139 desc = ioc->tmp_string;
142 case MPI2_FUNCTION_SCSI_TASK_MGMT:
145 case MPI2_FUNCTION_IOC_INIT:
148 case MPI2_FUNCTION_IOC_FACTS:
151 case MPI2_FUNCTION_CONFIG:
153 Mpi2ConfigRequest_t *config_request =
154 (Mpi2ConfigRequest_t *)mpi_request;
156 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
157 "config, type(0x%02x), ext_type(0x%02x), number(%d)",
158 (config_request->Header.PageType &
159 MPI2_CONFIG_PAGETYPE_MASK), config_request->ExtPageType,
160 config_request->Header.PageNumber);
161 desc = ioc->tmp_string;
164 case MPI2_FUNCTION_PORT_FACTS:
167 case MPI2_FUNCTION_PORT_ENABLE:
168 desc = "port_enable";
170 case MPI2_FUNCTION_EVENT_NOTIFICATION:
171 desc = "event_notification";
173 case MPI2_FUNCTION_FW_DOWNLOAD:
174 desc = "fw_download";
176 case MPI2_FUNCTION_FW_UPLOAD:
179 case MPI2_FUNCTION_RAID_ACTION:
180 desc = "raid_action";
182 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
184 Mpi2SCSIIORequest_t *scsi_request =
185 (Mpi2SCSIIORequest_t *)mpi_request;
187 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
188 "raid_pass, cmd(0x%02x), cdb_len(%d)",
189 scsi_request->CDB.CDB32[0],
190 le16_to_cpu(scsi_request->IoFlags) & 0xF);
191 desc = ioc->tmp_string;
194 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
195 desc = "sas_iounit_cntl";
197 case MPI2_FUNCTION_SATA_PASSTHROUGH:
200 case MPI2_FUNCTION_DIAG_BUFFER_POST:
201 desc = "diag_buffer_post";
203 case MPI2_FUNCTION_DIAG_RELEASE:
204 desc = "diag_release";
206 case MPI2_FUNCTION_SMP_PASSTHROUGH:
207 desc = "smp_passthrough";
214 pr_info(MPT3SAS_FMT "%s: %s, smid(%d)\n",
215 ioc->name, calling_function_name, desc, smid);
220 if (mpi_reply->IOCStatus || mpi_reply->IOCLogInfo)
222 "\tiocstatus(0x%04x), loginfo(0x%08x)\n",
223 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
224 le32_to_cpu(mpi_reply->IOCLogInfo));
226 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
227 mpi_request->Function ==
228 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
229 Mpi2SCSIIOReply_t *scsi_reply =
230 (Mpi2SCSIIOReply_t *)mpi_reply;
231 struct _sas_device *sas_device = NULL;
234 spin_lock_irqsave(&ioc->sas_device_lock, flags);
235 sas_device = _ctl_sas_device_find_by_handle(ioc,
236 le16_to_cpu(scsi_reply->DevHandle));
238 pr_warn(MPT3SAS_FMT "\tsas_address(0x%016llx), phy(%d)\n",
239 ioc->name, (unsigned long long)
240 sas_device->sas_address, sas_device->phy);
242 "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
243 ioc->name, (unsigned long long)
244 sas_device->enclosure_logical_id, sas_device->slot);
246 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
247 if (scsi_reply->SCSIState || scsi_reply->SCSIStatus)
249 "\tscsi_state(0x%02x), scsi_status"
250 "(0x%02x)\n", ioc->name,
251 scsi_reply->SCSIState,
252 scsi_reply->SCSIStatus);
257 * mpt3sas_ctl_done - ctl module completion routine
258 * @ioc: per adapter object
259 * @smid: system request message index
260 * @msix_index: MSIX table index supplied by the OS
261 * @reply: reply message frame(lower 32bit addr)
264 * The callback handler when using ioc->ctl_cb_idx.
266 * Return 1 meaning mf should be freed from _base_interrupt
267 * 0 means the mf is freed from this function.
270 mpt3sas_ctl_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
273 MPI2DefaultReply_t *mpi_reply;
274 Mpi2SCSIIOReply_t *scsiio_reply;
275 const void *sense_data;
278 if (ioc->ctl_cmds.status == MPT3_CMD_NOT_USED)
280 if (ioc->ctl_cmds.smid != smid)
282 ioc->ctl_cmds.status |= MPT3_CMD_COMPLETE;
283 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
285 memcpy(ioc->ctl_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
286 ioc->ctl_cmds.status |= MPT3_CMD_REPLY_VALID;
288 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
289 mpi_reply->Function ==
290 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
291 scsiio_reply = (Mpi2SCSIIOReply_t *)mpi_reply;
292 if (scsiio_reply->SCSIState &
293 MPI2_SCSI_STATE_AUTOSENSE_VALID) {
294 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
295 le32_to_cpu(scsiio_reply->SenseCount));
296 sense_data = mpt3sas_base_get_sense_buffer(ioc,
298 memcpy(ioc->ctl_cmds.sense, sense_data, sz);
302 _ctl_display_some_debug(ioc, smid, "ctl_done", mpi_reply);
303 ioc->ctl_cmds.status &= ~MPT3_CMD_PENDING;
304 complete(&ioc->ctl_cmds.done);
309 * _ctl_check_event_type - determines when an event needs logging
310 * @ioc: per adapter object
311 * @event: firmware event
313 * The bitmask in ioc->event_type[] indicates which events should be
314 * be saved in the driver event_log. This bitmask is set by application.
316 * Returns 1 when event should be captured, or zero means no match.
319 _ctl_check_event_type(struct MPT3SAS_ADAPTER *ioc, u16 event)
324 if (event >= 128 || !event || !ioc->event_log)
327 desired_event = (1 << (event % 32));
331 return desired_event & ioc->event_type[i];
335 * mpt3sas_ctl_add_to_event_log - add event
336 * @ioc: per adapter object
337 * @mpi_reply: reply message frame
342 mpt3sas_ctl_add_to_event_log(struct MPT3SAS_ADAPTER *ioc,
343 Mpi2EventNotificationReply_t *mpi_reply)
345 struct MPT3_IOCTL_EVENTS *event_log;
348 u32 sz, event_data_sz;
354 event = le16_to_cpu(mpi_reply->Event);
356 if (_ctl_check_event_type(ioc, event)) {
358 /* insert entry into circular event_log */
359 i = ioc->event_context % MPT3SAS_CTL_EVENT_LOG_SIZE;
360 event_log = ioc->event_log;
361 event_log[i].event = event;
362 event_log[i].context = ioc->event_context++;
364 event_data_sz = le16_to_cpu(mpi_reply->EventDataLength)*4;
365 sz = min_t(u32, event_data_sz, MPT3_EVENT_DATA_SIZE);
366 memset(event_log[i].data, 0, MPT3_EVENT_DATA_SIZE);
367 memcpy(event_log[i].data, mpi_reply->EventData, sz);
371 /* This aen_event_read_flag flag is set until the
372 * application has read the event log.
373 * For MPI2_EVENT_LOG_ENTRY_ADDED, we always notify.
375 if (event == MPI2_EVENT_LOG_ENTRY_ADDED ||
376 (send_aen && !ioc->aen_event_read_flag)) {
377 ioc->aen_event_read_flag = 1;
378 wake_up_interruptible(&ctl_poll_wait);
380 kill_fasync(&async_queue, SIGIO, POLL_IN);
385 * mpt3sas_ctl_event_callback - firmware event handler (called at ISR time)
386 * @ioc: per adapter object
387 * @msix_index: MSIX table index supplied by the OS
388 * @reply: reply message frame(lower 32bit addr)
389 * Context: interrupt.
391 * This function merely adds a new work task into ioc->firmware_event_thread.
392 * The tasks are worked from _firmware_event_work in user context.
394 * Return 1 meaning mf should be freed from _base_interrupt
395 * 0 means the mf is freed from this function.
398 mpt3sas_ctl_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index,
401 Mpi2EventNotificationReply_t *mpi_reply;
403 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
405 mpt3sas_ctl_add_to_event_log(ioc, mpi_reply);
410 * _ctl_verify_adapter - validates ioc_number passed from application
411 * @ioc: per adapter object
412 * @iocpp: The ioc pointer is returned in this.
413 * @mpi_version: will be MPI2_VERSION for mpt2ctl ioctl device &
414 * MPI25_VERSION | MPI26_VERSION for mpt3ctl ioctl device.
416 * Return (-1) means error, else ioc_number.
419 _ctl_verify_adapter(int ioc_number, struct MPT3SAS_ADAPTER **iocpp,
422 struct MPT3SAS_ADAPTER *ioc;
424 /* global ioc lock to protect controller on list operations */
425 spin_lock(&gioc_lock);
426 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
427 if (ioc->id != ioc_number)
429 /* Check whether this ioctl command is from right
430 * ioctl device or not, if not continue the search.
432 version = ioc->hba_mpi_version_belonged;
433 /* MPI25_VERSION and MPI26_VERSION uses same ioctl
436 if (mpi_version == (MPI25_VERSION | MPI26_VERSION)) {
437 if ((version == MPI25_VERSION) ||
438 (version == MPI26_VERSION))
443 if (version != mpi_version)
447 spin_unlock(&gioc_lock);
451 spin_unlock(&gioc_lock);
457 * mpt3sas_ctl_reset_handler - reset callback handler (for ctl)
458 * @ioc: per adapter object
459 * @reset_phase: phase
461 * The handler for doing any required cleanup or initialization.
463 * The reset phase can be MPT3_IOC_PRE_RESET, MPT3_IOC_AFTER_RESET,
464 * MPT3_IOC_DONE_RESET
467 mpt3sas_ctl_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase)
472 switch (reset_phase) {
473 case MPT3_IOC_PRE_RESET:
474 dtmprintk(ioc, pr_info(MPT3SAS_FMT
475 "%s: MPT3_IOC_PRE_RESET\n", ioc->name, __func__));
476 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
477 if (!(ioc->diag_buffer_status[i] &
478 MPT3_DIAG_BUFFER_IS_REGISTERED))
480 if ((ioc->diag_buffer_status[i] &
481 MPT3_DIAG_BUFFER_IS_RELEASED))
483 mpt3sas_send_diag_release(ioc, i, &issue_reset);
486 case MPT3_IOC_AFTER_RESET:
487 dtmprintk(ioc, pr_info(MPT3SAS_FMT
488 "%s: MPT3_IOC_AFTER_RESET\n", ioc->name, __func__));
489 if (ioc->ctl_cmds.status & MPT3_CMD_PENDING) {
490 ioc->ctl_cmds.status |= MPT3_CMD_RESET;
491 mpt3sas_base_free_smid(ioc, ioc->ctl_cmds.smid);
492 complete(&ioc->ctl_cmds.done);
495 case MPT3_IOC_DONE_RESET:
496 dtmprintk(ioc, pr_info(MPT3SAS_FMT
497 "%s: MPT3_IOC_DONE_RESET\n", ioc->name, __func__));
499 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
500 if (!(ioc->diag_buffer_status[i] &
501 MPT3_DIAG_BUFFER_IS_REGISTERED))
503 if ((ioc->diag_buffer_status[i] &
504 MPT3_DIAG_BUFFER_IS_RELEASED))
506 ioc->diag_buffer_status[i] |=
507 MPT3_DIAG_BUFFER_IS_DIAG_RESET;
519 * Called when application request fasyn callback handler.
522 _ctl_fasync(int fd, struct file *filep, int mode)
524 return fasync_helper(fd, filep, mode, &async_queue);
534 _ctl_poll(struct file *filep, poll_table *wait)
536 struct MPT3SAS_ADAPTER *ioc;
538 poll_wait(filep, &ctl_poll_wait, wait);
540 /* global ioc lock to protect controller on list operations */
541 spin_lock(&gioc_lock);
542 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
543 if (ioc->aen_event_read_flag) {
544 spin_unlock(&gioc_lock);
545 return POLLIN | POLLRDNORM;
548 spin_unlock(&gioc_lock);
553 * _ctl_set_task_mid - assign an active smid to tm request
554 * @ioc: per adapter object
555 * @karg - (struct mpt3_ioctl_command)
556 * @tm_request - pointer to mf from user space
558 * Returns 0 when an smid if found, else fail.
559 * during failure, the reply frame is filled.
562 _ctl_set_task_mid(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command *karg,
563 Mpi2SCSITaskManagementRequest_t *tm_request)
568 struct scsi_cmnd *scmd;
569 struct MPT3SAS_DEVICE *priv_data;
571 Mpi2SCSITaskManagementReply_t *tm_reply;
576 if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
578 else if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK)
583 lun = scsilun_to_int((struct scsi_lun *)tm_request->LUN);
585 handle = le16_to_cpu(tm_request->DevHandle);
586 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
587 for (i = ioc->scsiio_depth; i && !found; i--) {
588 scmd = ioc->scsi_lookup[i - 1].scmd;
589 if (scmd == NULL || scmd->device == NULL ||
590 scmd->device->hostdata == NULL)
592 if (lun != scmd->device->lun)
594 priv_data = scmd->device->hostdata;
595 if (priv_data->sas_target == NULL)
597 if (priv_data->sas_target->handle != handle)
599 tm_request->TaskMID = cpu_to_le16(ioc->scsi_lookup[i - 1].smid);
602 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
605 dctlprintk(ioc, pr_info(MPT3SAS_FMT
606 "%s: handle(0x%04x), lun(%d), no active mid!!\n",
608 desc, le16_to_cpu(tm_request->DevHandle), lun));
609 tm_reply = ioc->ctl_cmds.reply;
610 tm_reply->DevHandle = tm_request->DevHandle;
611 tm_reply->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
612 tm_reply->TaskType = tm_request->TaskType;
613 tm_reply->MsgLength = sizeof(Mpi2SCSITaskManagementReply_t)/4;
614 tm_reply->VP_ID = tm_request->VP_ID;
615 tm_reply->VF_ID = tm_request->VF_ID;
616 sz = min_t(u32, karg->max_reply_bytes, ioc->reply_sz);
617 if (copy_to_user(karg->reply_frame_buf_ptr, ioc->ctl_cmds.reply,
619 pr_err("failure at %s:%d/%s()!\n", __FILE__,
624 dctlprintk(ioc, pr_info(MPT3SAS_FMT
625 "%s: handle(0x%04x), lun(%d), task_mid(%d)\n", ioc->name,
626 desc, le16_to_cpu(tm_request->DevHandle), lun,
627 le16_to_cpu(tm_request->TaskMID)));
632 * _ctl_do_mpt_command - main handler for MPT3COMMAND opcode
633 * @ioc: per adapter object
634 * @karg - (struct mpt3_ioctl_command)
635 * @mf - pointer to mf in user space
638 _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
641 MPI2RequestHeader_t *mpi_request = NULL, *request;
642 MPI2DefaultReply_t *mpi_reply;
645 unsigned long timeout;
649 void *data_out = NULL;
650 dma_addr_t data_out_dma = 0;
651 size_t data_out_sz = 0;
652 void *data_in = NULL;
653 dma_addr_t data_in_dma = 0;
654 size_t data_in_sz = 0;
656 u16 wait_state_count;
660 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
661 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
662 ioc->name, __func__);
667 wait_state_count = 0;
668 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
669 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
670 if (wait_state_count++ == 10) {
672 "%s: failed due to ioc not operational\n",
673 ioc->name, __func__);
678 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
680 "%s: waiting for operational state(count=%d)\n",
682 __func__, wait_state_count);
684 if (wait_state_count)
685 pr_info(MPT3SAS_FMT "%s: ioc is operational\n",
686 ioc->name, __func__);
688 mpi_request = kzalloc(ioc->request_sz, GFP_KERNEL);
691 "%s: failed obtaining a memory for mpi_request\n",
692 ioc->name, __func__);
697 /* Check for overflow and wraparound */
698 if (karg.data_sge_offset * 4 > ioc->request_sz ||
699 karg.data_sge_offset > (UINT_MAX / 4)) {
704 /* copy in request message frame from user */
705 if (copy_from_user(mpi_request, mf, karg.data_sge_offset*4)) {
706 pr_err("failure at %s:%d/%s()!\n", __FILE__, __LINE__,
712 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
713 smid = mpt3sas_base_get_smid_hpr(ioc, ioc->ctl_cb_idx);
715 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
716 ioc->name, __func__);
722 smid = mpt3sas_base_get_smid_scsiio(ioc, ioc->ctl_cb_idx, NULL);
724 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
725 ioc->name, __func__);
732 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
733 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
734 request = mpt3sas_base_get_msg_frame(ioc, smid);
735 memcpy(request, mpi_request, karg.data_sge_offset*4);
736 ioc->ctl_cmds.smid = smid;
737 data_out_sz = karg.data_out_size;
738 data_in_sz = karg.data_in_size;
740 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
741 mpi_request->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
742 if (!le16_to_cpu(mpi_request->FunctionDependent1) ||
743 le16_to_cpu(mpi_request->FunctionDependent1) >
744 ioc->facts.MaxDevHandle) {
746 mpt3sas_base_free_smid(ioc, smid);
751 /* obtain dma-able memory for data transfer */
752 if (data_out_sz) /* WRITE */ {
753 data_out = pci_alloc_consistent(ioc->pdev, data_out_sz,
756 pr_err("failure at %s:%d/%s()!\n", __FILE__,
759 mpt3sas_base_free_smid(ioc, smid);
762 if (copy_from_user(data_out, karg.data_out_buf_ptr,
764 pr_err("failure at %s:%d/%s()!\n", __FILE__,
767 mpt3sas_base_free_smid(ioc, smid);
772 if (data_in_sz) /* READ */ {
773 data_in = pci_alloc_consistent(ioc->pdev, data_in_sz,
776 pr_err("failure at %s:%d/%s()!\n", __FILE__,
779 mpt3sas_base_free_smid(ioc, smid);
784 psge = (void *)request + (karg.data_sge_offset*4);
786 /* send command to firmware */
787 _ctl_display_some_debug(ioc, smid, "ctl_request", NULL);
789 init_completion(&ioc->ctl_cmds.done);
790 switch (mpi_request->Function) {
791 case MPI2_FUNCTION_SCSI_IO_REQUEST:
792 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
794 Mpi2SCSIIORequest_t *scsiio_request =
795 (Mpi2SCSIIORequest_t *)request;
796 scsiio_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
797 scsiio_request->SenseBufferLowAddress =
798 mpt3sas_base_get_sense_buffer_dma(ioc, smid);
799 memset(ioc->ctl_cmds.sense, 0, SCSI_SENSE_BUFFERSIZE);
800 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
801 data_in_dma, data_in_sz);
803 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)
804 mpt3sas_base_put_smid_scsi_io(ioc, smid,
805 le16_to_cpu(mpi_request->FunctionDependent1));
807 mpt3sas_base_put_smid_default(ioc, smid);
810 case MPI2_FUNCTION_SCSI_TASK_MGMT:
812 Mpi2SCSITaskManagementRequest_t *tm_request =
813 (Mpi2SCSITaskManagementRequest_t *)request;
815 dtmprintk(ioc, pr_info(MPT3SAS_FMT
816 "TASK_MGMT: handle(0x%04x), task_type(0x%02x)\n",
818 le16_to_cpu(tm_request->DevHandle), tm_request->TaskType));
820 if (tm_request->TaskType ==
821 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK ||
822 tm_request->TaskType ==
823 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) {
824 if (_ctl_set_task_mid(ioc, &karg, tm_request)) {
825 mpt3sas_base_free_smid(ioc, smid);
830 mpt3sas_scsih_set_tm_flag(ioc, le16_to_cpu(
831 tm_request->DevHandle));
832 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
833 data_in_dma, data_in_sz);
834 mpt3sas_base_put_smid_hi_priority(ioc, smid, 0);
837 case MPI2_FUNCTION_SMP_PASSTHROUGH:
839 Mpi2SmpPassthroughRequest_t *smp_request =
840 (Mpi2SmpPassthroughRequest_t *)mpi_request;
843 /* ioc determines which port to use */
844 smp_request->PhysicalPort = 0xFF;
845 if (smp_request->PassthroughFlags &
846 MPI2_SMP_PT_REQ_PT_FLAGS_IMMEDIATE)
847 data = (u8 *)&smp_request->SGL;
849 if (unlikely(data_out == NULL)) {
850 pr_err("failure at %s:%d/%s()!\n",
851 __FILE__, __LINE__, __func__);
852 mpt3sas_base_free_smid(ioc, smid);
859 if (data[1] == 0x91 && (data[10] == 1 || data[10] == 2)) {
860 ioc->ioc_link_reset_in_progress = 1;
861 ioc->ignore_loginfos = 1;
863 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
865 mpt3sas_base_put_smid_default(ioc, smid);
868 case MPI2_FUNCTION_SATA_PASSTHROUGH:
869 case MPI2_FUNCTION_FW_DOWNLOAD:
870 case MPI2_FUNCTION_FW_UPLOAD:
872 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
874 mpt3sas_base_put_smid_default(ioc, smid);
877 case MPI2_FUNCTION_TOOLBOX:
879 Mpi2ToolboxCleanRequest_t *toolbox_request =
880 (Mpi2ToolboxCleanRequest_t *)mpi_request;
882 if (toolbox_request->Tool == MPI2_TOOLBOX_DIAGNOSTIC_CLI_TOOL) {
883 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
884 data_in_dma, data_in_sz);
886 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
887 data_in_dma, data_in_sz);
889 mpt3sas_base_put_smid_default(ioc, smid);
892 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
894 Mpi2SasIoUnitControlRequest_t *sasiounit_request =
895 (Mpi2SasIoUnitControlRequest_t *)mpi_request;
897 if (sasiounit_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET
898 || sasiounit_request->Operation ==
899 MPI2_SAS_OP_PHY_LINK_RESET) {
900 ioc->ioc_link_reset_in_progress = 1;
901 ioc->ignore_loginfos = 1;
903 /* drop to default case for posting the request */
906 ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
907 data_in_dma, data_in_sz);
908 mpt3sas_base_put_smid_default(ioc, smid);
912 if (karg.timeout < MPT3_IOCTL_DEFAULT_TIMEOUT)
913 timeout = MPT3_IOCTL_DEFAULT_TIMEOUT;
915 timeout = karg.timeout;
916 wait_for_completion_timeout(&ioc->ctl_cmds.done, timeout*HZ);
917 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
918 Mpi2SCSITaskManagementRequest_t *tm_request =
919 (Mpi2SCSITaskManagementRequest_t *)mpi_request;
920 mpt3sas_scsih_clear_tm_flag(ioc, le16_to_cpu(
921 tm_request->DevHandle));
922 mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
923 } else if ((mpi_request->Function == MPI2_FUNCTION_SMP_PASSTHROUGH ||
924 mpi_request->Function == MPI2_FUNCTION_SAS_IO_UNIT_CONTROL) &&
925 ioc->ioc_link_reset_in_progress) {
926 ioc->ioc_link_reset_in_progress = 0;
927 ioc->ignore_loginfos = 0;
929 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
930 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
932 _debug_dump_mf(mpi_request, karg.data_sge_offset);
933 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
935 goto issue_host_reset;
938 mpi_reply = ioc->ctl_cmds.reply;
940 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_TASK_MGMT &&
941 (ioc->logging_level & MPT_DEBUG_TM)) {
942 Mpi2SCSITaskManagementReply_t *tm_reply =
943 (Mpi2SCSITaskManagementReply_t *)mpi_reply;
945 pr_info(MPT3SAS_FMT "TASK_MGMT: " \
946 "IOCStatus(0x%04x), IOCLogInfo(0x%08x), "
947 "TerminationCount(0x%08x)\n", ioc->name,
948 le16_to_cpu(tm_reply->IOCStatus),
949 le32_to_cpu(tm_reply->IOCLogInfo),
950 le32_to_cpu(tm_reply->TerminationCount));
953 /* copy out xdata to user */
955 if (copy_to_user(karg.data_in_buf_ptr, data_in,
957 pr_err("failure at %s:%d/%s()!\n", __FILE__,
964 /* copy out reply message frame to user */
965 if (karg.max_reply_bytes) {
966 sz = min_t(u32, karg.max_reply_bytes, ioc->reply_sz);
967 if (copy_to_user(karg.reply_frame_buf_ptr, ioc->ctl_cmds.reply,
969 pr_err("failure at %s:%d/%s()!\n", __FILE__,
976 /* copy out sense to user */
977 if (karg.max_sense_bytes && (mpi_request->Function ==
978 MPI2_FUNCTION_SCSI_IO_REQUEST || mpi_request->Function ==
979 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) {
980 sz = min_t(u32, karg.max_sense_bytes, SCSI_SENSE_BUFFERSIZE);
981 if (copy_to_user(karg.sense_data_ptr, ioc->ctl_cmds.sense,
983 pr_err("failure at %s:%d/%s()!\n", __FILE__,
993 if ((mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
994 mpi_request->Function ==
995 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
996 mpi_request->Function == MPI2_FUNCTION_SATA_PASSTHROUGH)) {
997 pr_info(MPT3SAS_FMT "issue target reset: handle = (0x%04x)\n",
999 le16_to_cpu(mpi_request->FunctionDependent1));
1000 mpt3sas_halt_firmware(ioc);
1001 mpt3sas_scsih_issue_locked_tm(ioc,
1002 le16_to_cpu(mpi_request->FunctionDependent1), 0, 0,
1003 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 30);
1005 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1010 /* free memory associated with sg buffers */
1012 pci_free_consistent(ioc->pdev, data_in_sz, data_in,
1016 pci_free_consistent(ioc->pdev, data_out_sz, data_out,
1020 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1025 * _ctl_getiocinfo - main handler for MPT3IOCINFO opcode
1026 * @ioc: per adapter object
1027 * @arg - user space buffer containing ioctl content
1030 _ctl_getiocinfo(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1032 struct mpt3_ioctl_iocinfo karg;
1034 if (copy_from_user(&karg, arg, sizeof(karg))) {
1035 pr_err("failure at %s:%d/%s()!\n",
1036 __FILE__, __LINE__, __func__);
1040 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1043 memset(&karg, 0 , sizeof(karg));
1045 karg.port_number = ioc->pfacts[0].PortNumber;
1046 karg.hw_rev = ioc->pdev->revision;
1047 karg.pci_id = ioc->pdev->device;
1048 karg.subsystem_device = ioc->pdev->subsystem_device;
1049 karg.subsystem_vendor = ioc->pdev->subsystem_vendor;
1050 karg.pci_information.u.bits.bus = ioc->pdev->bus->number;
1051 karg.pci_information.u.bits.device = PCI_SLOT(ioc->pdev->devfn);
1052 karg.pci_information.u.bits.function = PCI_FUNC(ioc->pdev->devfn);
1053 karg.pci_information.segment_id = pci_domain_nr(ioc->pdev->bus);
1054 karg.firmware_version = ioc->facts.FWVersion.Word;
1055 strcpy(karg.driver_version, ioc->driver_name);
1056 strcat(karg.driver_version, "-");
1057 switch (ioc->hba_mpi_version_belonged) {
1059 if (ioc->is_warpdrive)
1060 karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2_SSS6200;
1062 karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2;
1063 strcat(karg.driver_version, MPT2SAS_DRIVER_VERSION);
1067 karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS3;
1068 strcat(karg.driver_version, MPT3SAS_DRIVER_VERSION);
1071 karg.bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
1073 if (copy_to_user(arg, &karg, sizeof(karg))) {
1074 pr_err("failure at %s:%d/%s()!\n",
1075 __FILE__, __LINE__, __func__);
1082 * _ctl_eventquery - main handler for MPT3EVENTQUERY opcode
1083 * @ioc: per adapter object
1084 * @arg - user space buffer containing ioctl content
1087 _ctl_eventquery(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1089 struct mpt3_ioctl_eventquery karg;
1091 if (copy_from_user(&karg, arg, sizeof(karg))) {
1092 pr_err("failure at %s:%d/%s()!\n",
1093 __FILE__, __LINE__, __func__);
1097 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1100 karg.event_entries = MPT3SAS_CTL_EVENT_LOG_SIZE;
1101 memcpy(karg.event_types, ioc->event_type,
1102 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1104 if (copy_to_user(arg, &karg, sizeof(karg))) {
1105 pr_err("failure at %s:%d/%s()!\n",
1106 __FILE__, __LINE__, __func__);
1113 * _ctl_eventenable - main handler for MPT3EVENTENABLE opcode
1114 * @ioc: per adapter object
1115 * @arg - user space buffer containing ioctl content
1118 _ctl_eventenable(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1120 struct mpt3_ioctl_eventenable karg;
1122 if (copy_from_user(&karg, arg, sizeof(karg))) {
1123 pr_err("failure at %s:%d/%s()!\n",
1124 __FILE__, __LINE__, __func__);
1128 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1131 memcpy(ioc->event_type, karg.event_types,
1132 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1133 mpt3sas_base_validate_event_type(ioc, ioc->event_type);
1137 /* initialize event_log */
1138 ioc->event_context = 0;
1139 ioc->aen_event_read_flag = 0;
1140 ioc->event_log = kcalloc(MPT3SAS_CTL_EVENT_LOG_SIZE,
1141 sizeof(struct MPT3_IOCTL_EVENTS), GFP_KERNEL);
1142 if (!ioc->event_log) {
1143 pr_err("failure at %s:%d/%s()!\n",
1144 __FILE__, __LINE__, __func__);
1151 * _ctl_eventreport - main handler for MPT3EVENTREPORT opcode
1152 * @ioc: per adapter object
1153 * @arg - user space buffer containing ioctl content
1156 _ctl_eventreport(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1158 struct mpt3_ioctl_eventreport karg;
1159 u32 number_bytes, max_events, max;
1160 struct mpt3_ioctl_eventreport __user *uarg = arg;
1162 if (copy_from_user(&karg, arg, sizeof(karg))) {
1163 pr_err("failure at %s:%d/%s()!\n",
1164 __FILE__, __LINE__, __func__);
1168 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1171 number_bytes = karg.hdr.max_data_size -
1172 sizeof(struct mpt3_ioctl_header);
1173 max_events = number_bytes/sizeof(struct MPT3_IOCTL_EVENTS);
1174 max = min_t(u32, MPT3SAS_CTL_EVENT_LOG_SIZE, max_events);
1176 /* If fewer than 1 event is requested, there must have
1177 * been some type of error.
1179 if (!max || !ioc->event_log)
1182 number_bytes = max * sizeof(struct MPT3_IOCTL_EVENTS);
1183 if (copy_to_user(uarg->event_data, ioc->event_log, number_bytes)) {
1184 pr_err("failure at %s:%d/%s()!\n",
1185 __FILE__, __LINE__, __func__);
1189 /* reset flag so SIGIO can restart */
1190 ioc->aen_event_read_flag = 0;
1195 * _ctl_do_reset - main handler for MPT3HARDRESET opcode
1196 * @ioc: per adapter object
1197 * @arg - user space buffer containing ioctl content
1200 _ctl_do_reset(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1202 struct mpt3_ioctl_diag_reset karg;
1205 if (copy_from_user(&karg, arg, sizeof(karg))) {
1206 pr_err("failure at %s:%d/%s()!\n",
1207 __FILE__, __LINE__, __func__);
1211 if (ioc->shost_recovery || ioc->pci_error_recovery ||
1212 ioc->is_driver_loading)
1215 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
1218 retval = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1219 pr_info(MPT3SAS_FMT "host reset: %s\n",
1220 ioc->name, ((!retval) ? "SUCCESS" : "FAILED"));
1225 * _ctl_btdh_search_sas_device - searching for sas device
1226 * @ioc: per adapter object
1227 * @btdh: btdh ioctl payload
1230 _ctl_btdh_search_sas_device(struct MPT3SAS_ADAPTER *ioc,
1231 struct mpt3_ioctl_btdh_mapping *btdh)
1233 struct _sas_device *sas_device;
1234 unsigned long flags;
1237 if (list_empty(&ioc->sas_device_list))
1240 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1241 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
1242 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1243 btdh->handle == sas_device->handle) {
1244 btdh->bus = sas_device->channel;
1245 btdh->id = sas_device->id;
1248 } else if (btdh->bus == sas_device->channel && btdh->id ==
1249 sas_device->id && btdh->handle == 0xFFFF) {
1250 btdh->handle = sas_device->handle;
1256 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1261 * _ctl_btdh_search_raid_device - searching for raid device
1262 * @ioc: per adapter object
1263 * @btdh: btdh ioctl payload
1266 _ctl_btdh_search_raid_device(struct MPT3SAS_ADAPTER *ioc,
1267 struct mpt3_ioctl_btdh_mapping *btdh)
1269 struct _raid_device *raid_device;
1270 unsigned long flags;
1273 if (list_empty(&ioc->raid_device_list))
1276 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1277 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
1278 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1279 btdh->handle == raid_device->handle) {
1280 btdh->bus = raid_device->channel;
1281 btdh->id = raid_device->id;
1284 } else if (btdh->bus == raid_device->channel && btdh->id ==
1285 raid_device->id && btdh->handle == 0xFFFF) {
1286 btdh->handle = raid_device->handle;
1292 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1297 * _ctl_btdh_mapping - main handler for MPT3BTDHMAPPING opcode
1298 * @ioc: per adapter object
1299 * @arg - user space buffer containing ioctl content
1302 _ctl_btdh_mapping(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1304 struct mpt3_ioctl_btdh_mapping karg;
1307 if (copy_from_user(&karg, arg, sizeof(karg))) {
1308 pr_err("failure at %s:%d/%s()!\n",
1309 __FILE__, __LINE__, __func__);
1313 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1316 rc = _ctl_btdh_search_sas_device(ioc, &karg);
1318 _ctl_btdh_search_raid_device(ioc, &karg);
1320 if (copy_to_user(arg, &karg, sizeof(karg))) {
1321 pr_err("failure at %s:%d/%s()!\n",
1322 __FILE__, __LINE__, __func__);
1329 * _ctl_diag_capability - return diag buffer capability
1330 * @ioc: per adapter object
1331 * @buffer_type: specifies either TRACE, SNAPSHOT, or EXTENDED
1333 * returns 1 when diag buffer support is enabled in firmware
1336 _ctl_diag_capability(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type)
1340 switch (buffer_type) {
1341 case MPI2_DIAG_BUF_TYPE_TRACE:
1342 if (ioc->facts.IOCCapabilities &
1343 MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER)
1346 case MPI2_DIAG_BUF_TYPE_SNAPSHOT:
1347 if (ioc->facts.IOCCapabilities &
1348 MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER)
1351 case MPI2_DIAG_BUF_TYPE_EXTENDED:
1352 if (ioc->facts.IOCCapabilities &
1353 MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER)
1362 * _ctl_diag_register_2 - wrapper for registering diag buffer support
1363 * @ioc: per adapter object
1364 * @diag_register: the diag_register struct passed in from user space
1368 _ctl_diag_register_2(struct MPT3SAS_ADAPTER *ioc,
1369 struct mpt3_diag_register *diag_register)
1372 void *request_data = NULL;
1373 dma_addr_t request_data_dma;
1374 u32 request_data_sz = 0;
1375 Mpi2DiagBufferPostRequest_t *mpi_request;
1376 Mpi2DiagBufferPostReply_t *mpi_reply;
1383 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1386 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1387 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1389 "%s: failed due to ioc not operational\n",
1390 ioc->name, __func__);
1395 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
1396 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
1397 ioc->name, __func__);
1402 buffer_type = diag_register->buffer_type;
1403 if (!_ctl_diag_capability(ioc, buffer_type)) {
1405 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1406 ioc->name, __func__, buffer_type);
1410 if (ioc->diag_buffer_status[buffer_type] &
1411 MPT3_DIAG_BUFFER_IS_REGISTERED) {
1413 "%s: already has a registered buffer for buffer_type(0x%02x)\n",
1414 ioc->name, __func__,
1419 if (diag_register->requested_buffer_size % 4) {
1421 "%s: the requested_buffer_size is not 4 byte aligned\n",
1422 ioc->name, __func__);
1426 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1428 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
1429 ioc->name, __func__);
1435 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
1436 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1437 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1438 ioc->ctl_cmds.smid = smid;
1440 request_data = ioc->diag_buffer[buffer_type];
1441 request_data_sz = diag_register->requested_buffer_size;
1442 ioc->unique_id[buffer_type] = diag_register->unique_id;
1443 ioc->diag_buffer_status[buffer_type] = 0;
1444 memcpy(ioc->product_specific[buffer_type],
1445 diag_register->product_specific, MPT3_PRODUCT_SPECIFIC_DWORDS);
1446 ioc->diagnostic_flags[buffer_type] = diag_register->diagnostic_flags;
1449 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1450 if (request_data_sz != ioc->diag_buffer_sz[buffer_type]) {
1451 pci_free_consistent(ioc->pdev,
1452 ioc->diag_buffer_sz[buffer_type],
1453 request_data, request_data_dma);
1454 request_data = NULL;
1458 if (request_data == NULL) {
1459 ioc->diag_buffer_sz[buffer_type] = 0;
1460 ioc->diag_buffer_dma[buffer_type] = 0;
1461 request_data = pci_alloc_consistent(
1462 ioc->pdev, request_data_sz, &request_data_dma);
1463 if (request_data == NULL) {
1464 pr_err(MPT3SAS_FMT "%s: failed allocating memory" \
1465 " for diag buffers, requested size(%d)\n",
1466 ioc->name, __func__, request_data_sz);
1467 mpt3sas_base_free_smid(ioc, smid);
1471 ioc->diag_buffer[buffer_type] = request_data;
1472 ioc->diag_buffer_sz[buffer_type] = request_data_sz;
1473 ioc->diag_buffer_dma[buffer_type] = request_data_dma;
1476 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
1477 mpi_request->BufferType = diag_register->buffer_type;
1478 mpi_request->Flags = cpu_to_le32(diag_register->diagnostic_flags);
1479 mpi_request->BufferAddress = cpu_to_le64(request_data_dma);
1480 mpi_request->BufferLength = cpu_to_le32(request_data_sz);
1481 mpi_request->VF_ID = 0; /* TODO */
1482 mpi_request->VP_ID = 0;
1484 dctlprintk(ioc, pr_info(MPT3SAS_FMT
1485 "%s: diag_buffer(0x%p), dma(0x%llx), sz(%d)\n",
1486 ioc->name, __func__, request_data,
1487 (unsigned long long)request_data_dma,
1488 le32_to_cpu(mpi_request->BufferLength)));
1490 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
1491 mpi_request->ProductSpecific[i] =
1492 cpu_to_le32(ioc->product_specific[buffer_type][i]);
1494 init_completion(&ioc->ctl_cmds.done);
1495 mpt3sas_base_put_smid_default(ioc, smid);
1496 wait_for_completion_timeout(&ioc->ctl_cmds.done,
1497 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
1499 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1500 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
1502 _debug_dump_mf(mpi_request,
1503 sizeof(Mpi2DiagBufferPostRequest_t)/4);
1504 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
1506 goto issue_host_reset;
1509 /* process the completed Reply Message Frame */
1510 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
1511 pr_err(MPT3SAS_FMT "%s: no reply message\n",
1512 ioc->name, __func__);
1517 mpi_reply = ioc->ctl_cmds.reply;
1518 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1520 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1521 ioc->diag_buffer_status[buffer_type] |=
1522 MPT3_DIAG_BUFFER_IS_REGISTERED;
1523 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
1524 ioc->name, __func__));
1527 "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
1528 ioc->name, __func__,
1529 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
1535 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1539 if (rc && request_data)
1540 pci_free_consistent(ioc->pdev, request_data_sz,
1541 request_data, request_data_dma);
1543 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1548 * mpt3sas_enable_diag_buffer - enabling diag_buffers support driver load time
1549 * @ioc: per adapter object
1550 * @bits_to_register: bitwise field where trace is bit 0, and snapshot is bit 1
1552 * This is called when command line option diag_buffer_enable is enabled
1553 * at driver load time.
1556 mpt3sas_enable_diag_buffer(struct MPT3SAS_ADAPTER *ioc, u8 bits_to_register)
1558 struct mpt3_diag_register diag_register;
1560 memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
1562 if (bits_to_register & 1) {
1563 pr_info(MPT3SAS_FMT "registering trace buffer support\n",
1565 ioc->diag_trigger_master.MasterData =
1566 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
1567 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
1568 /* register for 2MB buffers */
1569 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1570 diag_register.unique_id = 0x7075900;
1571 _ctl_diag_register_2(ioc, &diag_register);
1574 if (bits_to_register & 2) {
1575 pr_info(MPT3SAS_FMT "registering snapshot buffer support\n",
1577 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_SNAPSHOT;
1578 /* register for 2MB buffers */
1579 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1580 diag_register.unique_id = 0x7075901;
1581 _ctl_diag_register_2(ioc, &diag_register);
1584 if (bits_to_register & 4) {
1585 pr_info(MPT3SAS_FMT "registering extended buffer support\n",
1587 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_EXTENDED;
1588 /* register for 2MB buffers */
1589 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1590 diag_register.unique_id = 0x7075901;
1591 _ctl_diag_register_2(ioc, &diag_register);
1596 * _ctl_diag_register - application register with driver
1597 * @ioc: per adapter object
1598 * @arg - user space buffer containing ioctl content
1600 * This will allow the driver to setup any required buffers that will be
1601 * needed by firmware to communicate with the driver.
1604 _ctl_diag_register(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1606 struct mpt3_diag_register karg;
1609 if (copy_from_user(&karg, arg, sizeof(karg))) {
1610 pr_err("failure at %s:%d/%s()!\n",
1611 __FILE__, __LINE__, __func__);
1615 rc = _ctl_diag_register_2(ioc, &karg);
1620 * _ctl_diag_unregister - application unregister with driver
1621 * @ioc: per adapter object
1622 * @arg - user space buffer containing ioctl content
1624 * This will allow the driver to cleanup any memory allocated for diag
1625 * messages and to free up any resources.
1628 _ctl_diag_unregister(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1630 struct mpt3_diag_unregister karg;
1632 dma_addr_t request_data_dma;
1633 u32 request_data_sz;
1636 if (copy_from_user(&karg, arg, sizeof(karg))) {
1637 pr_err("failure at %s:%d/%s()!\n",
1638 __FILE__, __LINE__, __func__);
1642 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1645 buffer_type = karg.unique_id & 0x000000ff;
1646 if (!_ctl_diag_capability(ioc, buffer_type)) {
1648 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1649 ioc->name, __func__, buffer_type);
1653 if ((ioc->diag_buffer_status[buffer_type] &
1654 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1656 "%s: buffer_type(0x%02x) is not registered\n",
1657 ioc->name, __func__, buffer_type);
1660 if ((ioc->diag_buffer_status[buffer_type] &
1661 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
1663 "%s: buffer_type(0x%02x) has not been released\n",
1664 ioc->name, __func__, buffer_type);
1668 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1670 "%s: unique_id(0x%08x) is not registered\n",
1671 ioc->name, __func__, karg.unique_id);
1675 request_data = ioc->diag_buffer[buffer_type];
1676 if (!request_data) {
1678 "%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
1679 ioc->name, __func__, buffer_type);
1683 request_data_sz = ioc->diag_buffer_sz[buffer_type];
1684 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1685 pci_free_consistent(ioc->pdev, request_data_sz,
1686 request_data, request_data_dma);
1687 ioc->diag_buffer[buffer_type] = NULL;
1688 ioc->diag_buffer_status[buffer_type] = 0;
1693 * _ctl_diag_query - query relevant info associated with diag buffers
1694 * @ioc: per adapter object
1695 * @arg - user space buffer containing ioctl content
1697 * The application will send only buffer_type and unique_id. Driver will
1698 * inspect unique_id first, if valid, fill in all the info. If unique_id is
1699 * 0x00, the driver will return info specified by Buffer Type.
1702 _ctl_diag_query(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1704 struct mpt3_diag_query karg;
1709 if (copy_from_user(&karg, arg, sizeof(karg))) {
1710 pr_err("failure at %s:%d/%s()!\n",
1711 __FILE__, __LINE__, __func__);
1715 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1718 karg.application_flags = 0;
1719 buffer_type = karg.buffer_type;
1721 if (!_ctl_diag_capability(ioc, buffer_type)) {
1723 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1724 ioc->name, __func__, buffer_type);
1728 if ((ioc->diag_buffer_status[buffer_type] &
1729 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1731 "%s: buffer_type(0x%02x) is not registered\n",
1732 ioc->name, __func__, buffer_type);
1736 if (karg.unique_id & 0xffffff00) {
1737 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1739 "%s: unique_id(0x%08x) is not registered\n",
1740 ioc->name, __func__, karg.unique_id);
1745 request_data = ioc->diag_buffer[buffer_type];
1746 if (!request_data) {
1748 "%s: doesn't have buffer for buffer_type(0x%02x)\n",
1749 ioc->name, __func__, buffer_type);
1753 if (ioc->diag_buffer_status[buffer_type] & MPT3_DIAG_BUFFER_IS_RELEASED)
1754 karg.application_flags = (MPT3_APP_FLAGS_APP_OWNED |
1755 MPT3_APP_FLAGS_BUFFER_VALID);
1757 karg.application_flags = (MPT3_APP_FLAGS_APP_OWNED |
1758 MPT3_APP_FLAGS_BUFFER_VALID |
1759 MPT3_APP_FLAGS_FW_BUFFER_ACCESS);
1761 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
1762 karg.product_specific[i] =
1763 ioc->product_specific[buffer_type][i];
1765 karg.total_buffer_size = ioc->diag_buffer_sz[buffer_type];
1766 karg.driver_added_buffer_size = 0;
1767 karg.unique_id = ioc->unique_id[buffer_type];
1768 karg.diagnostic_flags = ioc->diagnostic_flags[buffer_type];
1770 if (copy_to_user(arg, &karg, sizeof(struct mpt3_diag_query))) {
1772 "%s: unable to write mpt3_diag_query data @ %p\n",
1773 ioc->name, __func__, arg);
1780 * mpt3sas_send_diag_release - Diag Release Message
1781 * @ioc: per adapter object
1782 * @buffer_type - specifies either TRACE, SNAPSHOT, or EXTENDED
1783 * @issue_reset - specifies whether host reset is required.
1787 mpt3sas_send_diag_release(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type,
1790 Mpi2DiagReleaseRequest_t *mpi_request;
1791 Mpi2DiagReleaseReply_t *mpi_reply;
1797 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1803 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1804 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1805 if (ioc->diag_buffer_status[buffer_type] &
1806 MPT3_DIAG_BUFFER_IS_REGISTERED)
1807 ioc->diag_buffer_status[buffer_type] |=
1808 MPT3_DIAG_BUFFER_IS_RELEASED;
1809 dctlprintk(ioc, pr_info(MPT3SAS_FMT
1810 "%s: skipping due to FAULT state\n", ioc->name,
1816 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
1817 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
1818 ioc->name, __func__);
1823 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1825 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
1826 ioc->name, __func__);
1831 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
1832 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1833 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1834 ioc->ctl_cmds.smid = smid;
1836 mpi_request->Function = MPI2_FUNCTION_DIAG_RELEASE;
1837 mpi_request->BufferType = buffer_type;
1838 mpi_request->VF_ID = 0; /* TODO */
1839 mpi_request->VP_ID = 0;
1841 init_completion(&ioc->ctl_cmds.done);
1842 mpt3sas_base_put_smid_default(ioc, smid);
1843 wait_for_completion_timeout(&ioc->ctl_cmds.done,
1844 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
1846 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
1847 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
1849 _debug_dump_mf(mpi_request,
1850 sizeof(Mpi2DiagReleaseRequest_t)/4);
1851 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
1857 /* process the completed Reply Message Frame */
1858 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
1859 pr_err(MPT3SAS_FMT "%s: no reply message\n",
1860 ioc->name, __func__);
1865 mpi_reply = ioc->ctl_cmds.reply;
1866 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1868 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1869 ioc->diag_buffer_status[buffer_type] |=
1870 MPT3_DIAG_BUFFER_IS_RELEASED;
1871 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
1872 ioc->name, __func__));
1875 "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
1876 ioc->name, __func__,
1877 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
1882 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
1887 * _ctl_diag_release - request to send Diag Release Message to firmware
1888 * @arg - user space buffer containing ioctl content
1890 * This allows ownership of the specified buffer to returned to the driver,
1891 * allowing an application to read the buffer without fear that firmware is
1892 * overwritting information in the buffer.
1895 _ctl_diag_release(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1897 struct mpt3_diag_release karg;
1903 if (copy_from_user(&karg, arg, sizeof(karg))) {
1904 pr_err("failure at %s:%d/%s()!\n",
1905 __FILE__, __LINE__, __func__);
1909 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
1912 buffer_type = karg.unique_id & 0x000000ff;
1913 if (!_ctl_diag_capability(ioc, buffer_type)) {
1915 "%s: doesn't have capability for buffer_type(0x%02x)\n",
1916 ioc->name, __func__, buffer_type);
1920 if ((ioc->diag_buffer_status[buffer_type] &
1921 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
1923 "%s: buffer_type(0x%02x) is not registered\n",
1924 ioc->name, __func__, buffer_type);
1928 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1930 "%s: unique_id(0x%08x) is not registered\n",
1931 ioc->name, __func__, karg.unique_id);
1935 if (ioc->diag_buffer_status[buffer_type] &
1936 MPT3_DIAG_BUFFER_IS_RELEASED) {
1938 "%s: buffer_type(0x%02x) is already released\n",
1939 ioc->name, __func__,
1944 request_data = ioc->diag_buffer[buffer_type];
1946 if (!request_data) {
1948 "%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
1949 ioc->name, __func__, buffer_type);
1953 /* buffers were released by due to host reset */
1954 if ((ioc->diag_buffer_status[buffer_type] &
1955 MPT3_DIAG_BUFFER_IS_DIAG_RESET)) {
1956 ioc->diag_buffer_status[buffer_type] |=
1957 MPT3_DIAG_BUFFER_IS_RELEASED;
1958 ioc->diag_buffer_status[buffer_type] &=
1959 ~MPT3_DIAG_BUFFER_IS_DIAG_RESET;
1961 "%s: buffer_type(0x%02x) was released due to host reset\n",
1962 ioc->name, __func__, buffer_type);
1966 rc = mpt3sas_send_diag_release(ioc, buffer_type, &issue_reset);
1969 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1975 * _ctl_diag_read_buffer - request for copy of the diag buffer
1976 * @ioc: per adapter object
1977 * @arg - user space buffer containing ioctl content
1980 _ctl_diag_read_buffer(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
1982 struct mpt3_diag_read_buffer karg;
1983 struct mpt3_diag_read_buffer __user *uarg = arg;
1984 void *request_data, *diag_data;
1985 Mpi2DiagBufferPostRequest_t *mpi_request;
1986 Mpi2DiagBufferPostReply_t *mpi_reply;
1989 unsigned long request_size, copy_size;
1994 if (copy_from_user(&karg, arg, sizeof(karg))) {
1995 pr_err("failure at %s:%d/%s()!\n",
1996 __FILE__, __LINE__, __func__);
2000 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
2003 buffer_type = karg.unique_id & 0x000000ff;
2004 if (!_ctl_diag_capability(ioc, buffer_type)) {
2006 "%s: doesn't have capability for buffer_type(0x%02x)\n",
2007 ioc->name, __func__, buffer_type);
2011 if (karg.unique_id != ioc->unique_id[buffer_type]) {
2013 "%s: unique_id(0x%08x) is not registered\n",
2014 ioc->name, __func__, karg.unique_id);
2018 request_data = ioc->diag_buffer[buffer_type];
2019 if (!request_data) {
2021 "%s: doesn't have buffer for buffer_type(0x%02x)\n",
2022 ioc->name, __func__, buffer_type);
2026 request_size = ioc->diag_buffer_sz[buffer_type];
2028 if ((karg.starting_offset % 4) || (karg.bytes_to_read % 4)) {
2029 pr_err(MPT3SAS_FMT "%s: either the starting_offset " \
2030 "or bytes_to_read are not 4 byte aligned\n", ioc->name,
2035 if (karg.starting_offset > request_size)
2038 diag_data = (void *)(request_data + karg.starting_offset);
2039 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2040 "%s: diag_buffer(%p), offset(%d), sz(%d)\n",
2041 ioc->name, __func__,
2042 diag_data, karg.starting_offset, karg.bytes_to_read));
2044 /* Truncate data on requests that are too large */
2045 if ((diag_data + karg.bytes_to_read < diag_data) ||
2046 (diag_data + karg.bytes_to_read > request_data + request_size))
2047 copy_size = request_size - karg.starting_offset;
2049 copy_size = karg.bytes_to_read;
2051 if (copy_to_user((void __user *)uarg->diagnostic_data,
2052 diag_data, copy_size)) {
2054 "%s: Unable to write mpt_diag_read_buffer_t data @ %p\n",
2055 ioc->name, __func__, diag_data);
2059 if ((karg.flags & MPT3_FLAGS_REREGISTER) == 0)
2062 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2063 "%s: Reregister buffer_type(0x%02x)\n",
2064 ioc->name, __func__, buffer_type));
2065 if ((ioc->diag_buffer_status[buffer_type] &
2066 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
2067 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2068 "%s: buffer_type(0x%02x) is still registered\n",
2069 ioc->name, __func__, buffer_type));
2072 /* Get a free request frame and save the message context.
2075 if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
2076 pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
2077 ioc->name, __func__);
2082 smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
2084 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
2085 ioc->name, __func__);
2091 ioc->ctl_cmds.status = MPT3_CMD_PENDING;
2092 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
2093 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
2094 ioc->ctl_cmds.smid = smid;
2096 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
2097 mpi_request->BufferType = buffer_type;
2098 mpi_request->BufferLength =
2099 cpu_to_le32(ioc->diag_buffer_sz[buffer_type]);
2100 mpi_request->BufferAddress =
2101 cpu_to_le64(ioc->diag_buffer_dma[buffer_type]);
2102 for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
2103 mpi_request->ProductSpecific[i] =
2104 cpu_to_le32(ioc->product_specific[buffer_type][i]);
2105 mpi_request->VF_ID = 0; /* TODO */
2106 mpi_request->VP_ID = 0;
2108 init_completion(&ioc->ctl_cmds.done);
2109 mpt3sas_base_put_smid_default(ioc, smid);
2110 wait_for_completion_timeout(&ioc->ctl_cmds.done,
2111 MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
2113 if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
2114 pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
2116 _debug_dump_mf(mpi_request,
2117 sizeof(Mpi2DiagBufferPostRequest_t)/4);
2118 if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
2120 goto issue_host_reset;
2123 /* process the completed Reply Message Frame */
2124 if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
2125 pr_err(MPT3SAS_FMT "%s: no reply message\n",
2126 ioc->name, __func__);
2131 mpi_reply = ioc->ctl_cmds.reply;
2132 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
2134 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
2135 ioc->diag_buffer_status[buffer_type] |=
2136 MPT3_DIAG_BUFFER_IS_REGISTERED;
2137 dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
2138 ioc->name, __func__));
2141 "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
2142 ioc->name, __func__,
2143 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
2149 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
2153 ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
2159 #ifdef CONFIG_COMPAT
2161 * _ctl_compat_mpt_command - convert 32bit pointers to 64bit.
2162 * @ioc: per adapter object
2163 * @cmd - ioctl opcode
2164 * @arg - (struct mpt3_ioctl_command32)
2166 * MPT3COMMAND32 - Handle 32bit applications running on 64bit os.
2169 _ctl_compat_mpt_command(struct MPT3SAS_ADAPTER *ioc, unsigned cmd,
2172 struct mpt3_ioctl_command32 karg32;
2173 struct mpt3_ioctl_command32 __user *uarg;
2174 struct mpt3_ioctl_command karg;
2176 if (_IOC_SIZE(cmd) != sizeof(struct mpt3_ioctl_command32))
2179 uarg = (struct mpt3_ioctl_command32 __user *) arg;
2181 if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32))) {
2182 pr_err("failure at %s:%d/%s()!\n",
2183 __FILE__, __LINE__, __func__);
2187 memset(&karg, 0, sizeof(struct mpt3_ioctl_command));
2188 karg.hdr.ioc_number = karg32.hdr.ioc_number;
2189 karg.hdr.port_number = karg32.hdr.port_number;
2190 karg.hdr.max_data_size = karg32.hdr.max_data_size;
2191 karg.timeout = karg32.timeout;
2192 karg.max_reply_bytes = karg32.max_reply_bytes;
2193 karg.data_in_size = karg32.data_in_size;
2194 karg.data_out_size = karg32.data_out_size;
2195 karg.max_sense_bytes = karg32.max_sense_bytes;
2196 karg.data_sge_offset = karg32.data_sge_offset;
2197 karg.reply_frame_buf_ptr = compat_ptr(karg32.reply_frame_buf_ptr);
2198 karg.data_in_buf_ptr = compat_ptr(karg32.data_in_buf_ptr);
2199 karg.data_out_buf_ptr = compat_ptr(karg32.data_out_buf_ptr);
2200 karg.sense_data_ptr = compat_ptr(karg32.sense_data_ptr);
2201 return _ctl_do_mpt_command(ioc, karg, &uarg->mf);
2206 * _ctl_ioctl_main - main ioctl entry point
2207 * @file - (struct file)
2208 * @cmd - ioctl opcode
2209 * @arg - user space data buffer
2210 * @compat - handles 32 bit applications in 64bit os
2211 * @mpi_version: will be MPI2_VERSION for mpt2ctl ioctl device &
2212 * MPI25_VERSION | MPI26_VERSION for mpt3ctl ioctl device.
2215 _ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg,
2216 u8 compat, u16 mpi_version)
2218 struct MPT3SAS_ADAPTER *ioc;
2219 struct mpt3_ioctl_header ioctl_header;
2220 enum block_state state;
2223 /* get IOCTL header */
2224 if (copy_from_user(&ioctl_header, (char __user *)arg,
2225 sizeof(struct mpt3_ioctl_header))) {
2226 pr_err("failure at %s:%d/%s()!\n",
2227 __FILE__, __LINE__, __func__);
2231 if (_ctl_verify_adapter(ioctl_header.ioc_number,
2232 &ioc, mpi_version) == -1 || !ioc)
2235 /* pci_access_mutex lock acquired by ioctl path */
2236 mutex_lock(&ioc->pci_access_mutex);
2238 if (ioc->shost_recovery || ioc->pci_error_recovery ||
2239 ioc->is_driver_loading || ioc->remove_host) {
2241 goto out_unlock_pciaccess;
2244 state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING;
2245 if (state == NON_BLOCKING) {
2246 if (!mutex_trylock(&ioc->ctl_cmds.mutex)) {
2248 goto out_unlock_pciaccess;
2250 } else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) {
2252 goto out_unlock_pciaccess;
2258 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_iocinfo))
2259 ret = _ctl_getiocinfo(ioc, arg);
2261 #ifdef CONFIG_COMPAT
2266 struct mpt3_ioctl_command __user *uarg;
2267 struct mpt3_ioctl_command karg;
2269 #ifdef CONFIG_COMPAT
2271 ret = _ctl_compat_mpt_command(ioc, cmd, arg);
2275 if (copy_from_user(&karg, arg, sizeof(karg))) {
2276 pr_err("failure at %s:%d/%s()!\n",
2277 __FILE__, __LINE__, __func__);
2282 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_command)) {
2284 ret = _ctl_do_mpt_command(ioc, karg, &uarg->mf);
2288 case MPT3EVENTQUERY:
2289 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventquery))
2290 ret = _ctl_eventquery(ioc, arg);
2292 case MPT3EVENTENABLE:
2293 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventenable))
2294 ret = _ctl_eventenable(ioc, arg);
2296 case MPT3EVENTREPORT:
2297 ret = _ctl_eventreport(ioc, arg);
2300 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_diag_reset))
2301 ret = _ctl_do_reset(ioc, arg);
2303 case MPT3BTDHMAPPING:
2304 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_btdh_mapping))
2305 ret = _ctl_btdh_mapping(ioc, arg);
2307 case MPT3DIAGREGISTER:
2308 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_register))
2309 ret = _ctl_diag_register(ioc, arg);
2311 case MPT3DIAGUNREGISTER:
2312 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_unregister))
2313 ret = _ctl_diag_unregister(ioc, arg);
2316 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_query))
2317 ret = _ctl_diag_query(ioc, arg);
2319 case MPT3DIAGRELEASE:
2320 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_release))
2321 ret = _ctl_diag_release(ioc, arg);
2323 case MPT3DIAGREADBUFFER:
2324 if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_read_buffer))
2325 ret = _ctl_diag_read_buffer(ioc, arg);
2328 dctlprintk(ioc, pr_info(MPT3SAS_FMT
2329 "unsupported ioctl opcode(0x%08x)\n", ioc->name, cmd));
2333 mutex_unlock(&ioc->ctl_cmds.mutex);
2334 out_unlock_pciaccess:
2335 mutex_unlock(&ioc->pci_access_mutex);
2340 * _ctl_ioctl - mpt3ctl main ioctl entry point (unlocked)
2341 * @file - (struct file)
2342 * @cmd - ioctl opcode
2346 _ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2350 /* pass MPI25_VERSION | MPI26_VERSION value,
2351 * to indicate that this ioctl cmd
2352 * came from mpt3ctl ioctl device.
2354 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0,
2355 MPI25_VERSION | MPI26_VERSION);
2360 * _ctl_mpt2_ioctl - mpt2ctl main ioctl entry point (unlocked)
2361 * @file - (struct file)
2362 * @cmd - ioctl opcode
2366 _ctl_mpt2_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2370 /* pass MPI2_VERSION value, to indicate that this ioctl cmd
2371 * came from mpt2ctl ioctl device.
2373 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0, MPI2_VERSION);
2376 #ifdef CONFIG_COMPAT
2378 *_ ctl_ioctl_compat - main ioctl entry point (compat)
2383 * This routine handles 32 bit applications in 64bit os.
2386 _ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
2390 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1,
2391 MPI25_VERSION | MPI26_VERSION);
2396 *_ ctl_mpt2_ioctl_compat - main ioctl entry point (compat)
2401 * This routine handles 32 bit applications in 64bit os.
2404 _ctl_mpt2_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
2408 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1, MPI2_VERSION);
2413 /* scsi host attributes */
2415 * _ctl_version_fw_show - firmware version
2416 * @cdev - pointer to embedded class device
2417 * @buf - the buffer returned
2419 * A sysfs 'read-only' shost attribute.
2422 _ctl_version_fw_show(struct device *cdev, struct device_attribute *attr,
2425 struct Scsi_Host *shost = class_to_shost(cdev);
2426 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2428 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2429 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
2430 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
2431 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
2432 ioc->facts.FWVersion.Word & 0x000000FF);
2434 static DEVICE_ATTR(version_fw, S_IRUGO, _ctl_version_fw_show, NULL);
2437 * _ctl_version_bios_show - bios version
2438 * @cdev - pointer to embedded class device
2439 * @buf - the buffer returned
2441 * A sysfs 'read-only' shost attribute.
2444 _ctl_version_bios_show(struct device *cdev, struct device_attribute *attr,
2447 struct Scsi_Host *shost = class_to_shost(cdev);
2448 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2450 u32 version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
2452 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2453 (version & 0xFF000000) >> 24,
2454 (version & 0x00FF0000) >> 16,
2455 (version & 0x0000FF00) >> 8,
2456 version & 0x000000FF);
2458 static DEVICE_ATTR(version_bios, S_IRUGO, _ctl_version_bios_show, NULL);
2461 * _ctl_version_mpi_show - MPI (message passing interface) version
2462 * @cdev - pointer to embedded class device
2463 * @buf - the buffer returned
2465 * A sysfs 'read-only' shost attribute.
2468 _ctl_version_mpi_show(struct device *cdev, struct device_attribute *attr,
2471 struct Scsi_Host *shost = class_to_shost(cdev);
2472 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2474 return snprintf(buf, PAGE_SIZE, "%03x.%02x\n",
2475 ioc->facts.MsgVersion, ioc->facts.HeaderVersion >> 8);
2477 static DEVICE_ATTR(version_mpi, S_IRUGO, _ctl_version_mpi_show, NULL);
2480 * _ctl_version_product_show - product name
2481 * @cdev - pointer to embedded class device
2482 * @buf - the buffer returned
2484 * A sysfs 'read-only' shost attribute.
2487 _ctl_version_product_show(struct device *cdev, struct device_attribute *attr,
2490 struct Scsi_Host *shost = class_to_shost(cdev);
2491 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2493 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.ChipName);
2495 static DEVICE_ATTR(version_product, S_IRUGO, _ctl_version_product_show, NULL);
2498 * _ctl_version_nvdata_persistent_show - ndvata persistent version
2499 * @cdev - pointer to embedded class device
2500 * @buf - the buffer returned
2502 * A sysfs 'read-only' shost attribute.
2505 _ctl_version_nvdata_persistent_show(struct device *cdev,
2506 struct device_attribute *attr, char *buf)
2508 struct Scsi_Host *shost = class_to_shost(cdev);
2509 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2511 return snprintf(buf, PAGE_SIZE, "%08xh\n",
2512 le32_to_cpu(ioc->iounit_pg0.NvdataVersionPersistent.Word));
2514 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
2515 _ctl_version_nvdata_persistent_show, NULL);
2518 * _ctl_version_nvdata_default_show - nvdata default version
2519 * @cdev - pointer to embedded class device
2520 * @buf - the buffer returned
2522 * A sysfs 'read-only' shost attribute.
2525 _ctl_version_nvdata_default_show(struct device *cdev, struct device_attribute
2528 struct Scsi_Host *shost = class_to_shost(cdev);
2529 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2531 return snprintf(buf, PAGE_SIZE, "%08xh\n",
2532 le32_to_cpu(ioc->iounit_pg0.NvdataVersionDefault.Word));
2534 static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
2535 _ctl_version_nvdata_default_show, NULL);
2538 * _ctl_board_name_show - board name
2539 * @cdev - pointer to embedded class device
2540 * @buf - the buffer returned
2542 * A sysfs 'read-only' shost attribute.
2545 _ctl_board_name_show(struct device *cdev, struct device_attribute *attr,
2548 struct Scsi_Host *shost = class_to_shost(cdev);
2549 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2551 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardName);
2553 static DEVICE_ATTR(board_name, S_IRUGO, _ctl_board_name_show, NULL);
2556 * _ctl_board_assembly_show - board assembly name
2557 * @cdev - pointer to embedded class device
2558 * @buf - the buffer returned
2560 * A sysfs 'read-only' shost attribute.
2563 _ctl_board_assembly_show(struct device *cdev, struct device_attribute *attr,
2566 struct Scsi_Host *shost = class_to_shost(cdev);
2567 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2569 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardAssembly);
2571 static DEVICE_ATTR(board_assembly, S_IRUGO, _ctl_board_assembly_show, NULL);
2574 * _ctl_board_tracer_show - board tracer number
2575 * @cdev - pointer to embedded class device
2576 * @buf - the buffer returned
2578 * A sysfs 'read-only' shost attribute.
2581 _ctl_board_tracer_show(struct device *cdev, struct device_attribute *attr,
2584 struct Scsi_Host *shost = class_to_shost(cdev);
2585 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2587 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardTracerNumber);
2589 static DEVICE_ATTR(board_tracer, S_IRUGO, _ctl_board_tracer_show, NULL);
2592 * _ctl_io_delay_show - io missing delay
2593 * @cdev - pointer to embedded class device
2594 * @buf - the buffer returned
2596 * This is for firmware implemention for deboucing device
2599 * A sysfs 'read-only' shost attribute.
2602 _ctl_io_delay_show(struct device *cdev, struct device_attribute *attr,
2605 struct Scsi_Host *shost = class_to_shost(cdev);
2606 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2608 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
2610 static DEVICE_ATTR(io_delay, S_IRUGO, _ctl_io_delay_show, NULL);
2613 * _ctl_device_delay_show - device missing delay
2614 * @cdev - pointer to embedded class device
2615 * @buf - the buffer returned
2617 * This is for firmware implemention for deboucing device
2620 * A sysfs 'read-only' shost attribute.
2623 _ctl_device_delay_show(struct device *cdev, struct device_attribute *attr,
2626 struct Scsi_Host *shost = class_to_shost(cdev);
2627 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2629 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
2631 static DEVICE_ATTR(device_delay, S_IRUGO, _ctl_device_delay_show, NULL);
2634 * _ctl_fw_queue_depth_show - global credits
2635 * @cdev - pointer to embedded class device
2636 * @buf - the buffer returned
2638 * This is firmware queue depth limit
2640 * A sysfs 'read-only' shost attribute.
2643 _ctl_fw_queue_depth_show(struct device *cdev, struct device_attribute *attr,
2646 struct Scsi_Host *shost = class_to_shost(cdev);
2647 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2649 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->facts.RequestCredit);
2651 static DEVICE_ATTR(fw_queue_depth, S_IRUGO, _ctl_fw_queue_depth_show, NULL);
2654 * _ctl_sas_address_show - sas address
2655 * @cdev - pointer to embedded class device
2656 * @buf - the buffer returned
2658 * This is the controller sas address
2660 * A sysfs 'read-only' shost attribute.
2663 _ctl_host_sas_address_show(struct device *cdev, struct device_attribute *attr,
2667 struct Scsi_Host *shost = class_to_shost(cdev);
2668 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2670 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
2671 (unsigned long long)ioc->sas_hba.sas_address);
2673 static DEVICE_ATTR(host_sas_address, S_IRUGO,
2674 _ctl_host_sas_address_show, NULL);
2677 * _ctl_logging_level_show - logging level
2678 * @cdev - pointer to embedded class device
2679 * @buf - the buffer returned
2681 * A sysfs 'read/write' shost attribute.
2684 _ctl_logging_level_show(struct device *cdev, struct device_attribute *attr,
2687 struct Scsi_Host *shost = class_to_shost(cdev);
2688 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2690 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->logging_level);
2693 _ctl_logging_level_store(struct device *cdev, struct device_attribute *attr,
2694 const char *buf, size_t count)
2696 struct Scsi_Host *shost = class_to_shost(cdev);
2697 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2700 if (sscanf(buf, "%x", &val) != 1)
2703 ioc->logging_level = val;
2704 pr_info(MPT3SAS_FMT "logging_level=%08xh\n", ioc->name,
2705 ioc->logging_level);
2708 static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR, _ctl_logging_level_show,
2709 _ctl_logging_level_store);
2712 * _ctl_fwfault_debug_show - show/store fwfault_debug
2713 * @cdev - pointer to embedded class device
2714 * @buf - the buffer returned
2716 * mpt3sas_fwfault_debug is command line option
2717 * A sysfs 'read/write' shost attribute.
2720 _ctl_fwfault_debug_show(struct device *cdev, struct device_attribute *attr,
2723 struct Scsi_Host *shost = class_to_shost(cdev);
2724 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2726 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->fwfault_debug);
2729 _ctl_fwfault_debug_store(struct device *cdev, struct device_attribute *attr,
2730 const char *buf, size_t count)
2732 struct Scsi_Host *shost = class_to_shost(cdev);
2733 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2736 if (sscanf(buf, "%d", &val) != 1)
2739 ioc->fwfault_debug = val;
2740 pr_info(MPT3SAS_FMT "fwfault_debug=%d\n", ioc->name,
2741 ioc->fwfault_debug);
2744 static DEVICE_ATTR(fwfault_debug, S_IRUGO | S_IWUSR,
2745 _ctl_fwfault_debug_show, _ctl_fwfault_debug_store);
2748 * _ctl_ioc_reset_count_show - ioc reset count
2749 * @cdev - pointer to embedded class device
2750 * @buf - the buffer returned
2752 * This is firmware queue depth limit
2754 * A sysfs 'read-only' shost attribute.
2757 _ctl_ioc_reset_count_show(struct device *cdev, struct device_attribute *attr,
2760 struct Scsi_Host *shost = class_to_shost(cdev);
2761 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2763 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->ioc_reset_count);
2765 static DEVICE_ATTR(ioc_reset_count, S_IRUGO, _ctl_ioc_reset_count_show, NULL);
2768 * _ctl_ioc_reply_queue_count_show - number of reply queues
2769 * @cdev - pointer to embedded class device
2770 * @buf - the buffer returned
2772 * This is number of reply queues
2774 * A sysfs 'read-only' shost attribute.
2777 _ctl_ioc_reply_queue_count_show(struct device *cdev,
2778 struct device_attribute *attr, char *buf)
2780 u8 reply_queue_count;
2781 struct Scsi_Host *shost = class_to_shost(cdev);
2782 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2784 if ((ioc->facts.IOCCapabilities &
2785 MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX) && ioc->msix_enable)
2786 reply_queue_count = ioc->reply_queue_count;
2788 reply_queue_count = 1;
2790 return snprintf(buf, PAGE_SIZE, "%d\n", reply_queue_count);
2792 static DEVICE_ATTR(reply_queue_count, S_IRUGO, _ctl_ioc_reply_queue_count_show,
2796 * _ctl_BRM_status_show - Backup Rail Monitor Status
2797 * @cdev - pointer to embedded class device
2798 * @buf - the buffer returned
2800 * This is number of reply queues
2802 * A sysfs 'read-only' shost attribute.
2805 _ctl_BRM_status_show(struct device *cdev, struct device_attribute *attr,
2808 struct Scsi_Host *shost = class_to_shost(cdev);
2809 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2810 Mpi2IOUnitPage3_t *io_unit_pg3 = NULL;
2811 Mpi2ConfigReply_t mpi_reply;
2812 u16 backup_rail_monitor_status = 0;
2817 if (!ioc->is_warpdrive) {
2818 pr_err(MPT3SAS_FMT "%s: BRM attribute is only for"
2819 " warpdrive\n", ioc->name, __func__);
2822 /* pci_access_mutex lock acquired by sysfs show path */
2823 mutex_lock(&ioc->pci_access_mutex);
2824 if (ioc->pci_error_recovery || ioc->remove_host) {
2825 mutex_unlock(&ioc->pci_access_mutex);
2829 /* allocate upto GPIOVal 36 entries */
2830 sz = offsetof(Mpi2IOUnitPage3_t, GPIOVal) + (sizeof(u16) * 36);
2831 io_unit_pg3 = kzalloc(sz, GFP_KERNEL);
2833 pr_err(MPT3SAS_FMT "%s: failed allocating memory "
2834 "for iounit_pg3: (%d) bytes\n", ioc->name, __func__, sz);
2838 if (mpt3sas_config_get_iounit_pg3(ioc, &mpi_reply, io_unit_pg3, sz) !=
2841 "%s: failed reading iounit_pg3\n", ioc->name,
2846 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
2847 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
2848 pr_err(MPT3SAS_FMT "%s: iounit_pg3 failed with "
2849 "ioc_status(0x%04x)\n", ioc->name, __func__, ioc_status);
2853 if (io_unit_pg3->GPIOCount < 25) {
2854 pr_err(MPT3SAS_FMT "%s: iounit_pg3->GPIOCount less than "
2855 "25 entries, detected (%d) entries\n", ioc->name, __func__,
2856 io_unit_pg3->GPIOCount);
2860 /* BRM status is in bit zero of GPIOVal[24] */
2861 backup_rail_monitor_status = le16_to_cpu(io_unit_pg3->GPIOVal[24]);
2862 rc = snprintf(buf, PAGE_SIZE, "%d\n", (backup_rail_monitor_status & 1));
2866 mutex_unlock(&ioc->pci_access_mutex);
2869 static DEVICE_ATTR(BRM_status, S_IRUGO, _ctl_BRM_status_show, NULL);
2871 struct DIAG_BUFFER_START {
2882 * _ctl_host_trace_buffer_size_show - host buffer size (trace only)
2883 * @cdev - pointer to embedded class device
2884 * @buf - the buffer returned
2886 * A sysfs 'read-only' shost attribute.
2889 _ctl_host_trace_buffer_size_show(struct device *cdev,
2890 struct device_attribute *attr, char *buf)
2892 struct Scsi_Host *shost = class_to_shost(cdev);
2893 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2895 struct DIAG_BUFFER_START *request_data;
2897 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
2899 "%s: host_trace_buffer is not registered\n",
2900 ioc->name, __func__);
2904 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2905 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
2907 "%s: host_trace_buffer is not registered\n",
2908 ioc->name, __func__);
2912 request_data = (struct DIAG_BUFFER_START *)
2913 ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE];
2914 if ((le32_to_cpu(request_data->DiagVersion) == 0x00000000 ||
2915 le32_to_cpu(request_data->DiagVersion) == 0x01000000 ||
2916 le32_to_cpu(request_data->DiagVersion) == 0x01010000) &&
2917 le32_to_cpu(request_data->Reserved3) == 0x4742444c)
2918 size = le32_to_cpu(request_data->Size);
2920 ioc->ring_buffer_sz = size;
2921 return snprintf(buf, PAGE_SIZE, "%d\n", size);
2923 static DEVICE_ATTR(host_trace_buffer_size, S_IRUGO,
2924 _ctl_host_trace_buffer_size_show, NULL);
2927 * _ctl_host_trace_buffer_show - firmware ring buffer (trace only)
2928 * @cdev - pointer to embedded class device
2929 * @buf - the buffer returned
2931 * A sysfs 'read/write' shost attribute.
2933 * You will only be able to read 4k bytes of ring buffer at a time.
2934 * In order to read beyond 4k bytes, you will have to write out the
2935 * offset to the same attribute, it will move the pointer.
2938 _ctl_host_trace_buffer_show(struct device *cdev, struct device_attribute *attr,
2941 struct Scsi_Host *shost = class_to_shost(cdev);
2942 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2946 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
2948 "%s: host_trace_buffer is not registered\n",
2949 ioc->name, __func__);
2953 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2954 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
2956 "%s: host_trace_buffer is not registered\n",
2957 ioc->name, __func__);
2961 if (ioc->ring_buffer_offset > ioc->ring_buffer_sz)
2964 size = ioc->ring_buffer_sz - ioc->ring_buffer_offset;
2965 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size;
2966 request_data = ioc->diag_buffer[0] + ioc->ring_buffer_offset;
2967 memcpy(buf, request_data, size);
2972 _ctl_host_trace_buffer_store(struct device *cdev, struct device_attribute *attr,
2973 const char *buf, size_t count)
2975 struct Scsi_Host *shost = class_to_shost(cdev);
2976 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
2979 if (sscanf(buf, "%d", &val) != 1)
2982 ioc->ring_buffer_offset = val;
2985 static DEVICE_ATTR(host_trace_buffer, S_IRUGO | S_IWUSR,
2986 _ctl_host_trace_buffer_show, _ctl_host_trace_buffer_store);
2989 /*****************************************/
2992 * _ctl_host_trace_buffer_enable_show - firmware ring buffer (trace only)
2993 * @cdev - pointer to embedded class device
2994 * @buf - the buffer returned
2996 * A sysfs 'read/write' shost attribute.
2998 * This is a mechnism to post/release host_trace_buffers
3001 _ctl_host_trace_buffer_enable_show(struct device *cdev,
3002 struct device_attribute *attr, char *buf)
3004 struct Scsi_Host *shost = class_to_shost(cdev);
3005 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3007 if ((!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) ||
3008 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3009 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0))
3010 return snprintf(buf, PAGE_SIZE, "off\n");
3011 else if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3012 MPT3_DIAG_BUFFER_IS_RELEASED))
3013 return snprintf(buf, PAGE_SIZE, "release\n");
3015 return snprintf(buf, PAGE_SIZE, "post\n");
3019 _ctl_host_trace_buffer_enable_store(struct device *cdev,
3020 struct device_attribute *attr, const char *buf, size_t count)
3022 struct Scsi_Host *shost = class_to_shost(cdev);
3023 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3025 struct mpt3_diag_register diag_register;
3028 /* don't allow post/release occurr while recovery is active */
3029 if (ioc->shost_recovery || ioc->remove_host ||
3030 ioc->pci_error_recovery || ioc->is_driver_loading)
3033 if (sscanf(buf, "%9s", str) != 1)
3036 if (!strcmp(str, "post")) {
3037 /* exit out if host buffers are already posted */
3038 if ((ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) &&
3039 (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3040 MPT3_DIAG_BUFFER_IS_REGISTERED) &&
3041 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3042 MPT3_DIAG_BUFFER_IS_RELEASED) == 0))
3044 memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
3045 pr_info(MPT3SAS_FMT "posting host trace buffers\n",
3047 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
3048 diag_register.requested_buffer_size = (1024 * 1024);
3049 diag_register.unique_id = 0x7075900;
3050 ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] = 0;
3051 _ctl_diag_register_2(ioc, &diag_register);
3052 } else if (!strcmp(str, "release")) {
3053 /* exit out if host buffers are already released */
3054 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE])
3056 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3057 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0)
3059 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
3060 MPT3_DIAG_BUFFER_IS_RELEASED))
3062 pr_info(MPT3SAS_FMT "releasing host trace buffer\n",
3064 mpt3sas_send_diag_release(ioc, MPI2_DIAG_BUF_TYPE_TRACE,
3071 static DEVICE_ATTR(host_trace_buffer_enable, S_IRUGO | S_IWUSR,
3072 _ctl_host_trace_buffer_enable_show,
3073 _ctl_host_trace_buffer_enable_store);
3075 /*********** diagnostic trigger suppport *********************************/
3078 * _ctl_diag_trigger_master_show - show the diag_trigger_master attribute
3079 * @cdev - pointer to embedded class device
3080 * @buf - the buffer returned
3082 * A sysfs 'read/write' shost attribute.
3085 _ctl_diag_trigger_master_show(struct device *cdev,
3086 struct device_attribute *attr, char *buf)
3089 struct Scsi_Host *shost = class_to_shost(cdev);
3090 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3091 unsigned long flags;
3094 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3095 rc = sizeof(struct SL_WH_MASTER_TRIGGER_T);
3096 memcpy(buf, &ioc->diag_trigger_master, rc);
3097 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3102 * _ctl_diag_trigger_master_store - store the diag_trigger_master attribute
3103 * @cdev - pointer to embedded class device
3104 * @buf - the buffer returned
3106 * A sysfs 'read/write' shost attribute.
3109 _ctl_diag_trigger_master_store(struct device *cdev,
3110 struct device_attribute *attr, const char *buf, size_t count)
3113 struct Scsi_Host *shost = class_to_shost(cdev);
3114 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3115 unsigned long flags;
3118 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3119 rc = min(sizeof(struct SL_WH_MASTER_TRIGGER_T), count);
3120 memset(&ioc->diag_trigger_master, 0,
3121 sizeof(struct SL_WH_MASTER_TRIGGER_T));
3122 memcpy(&ioc->diag_trigger_master, buf, rc);
3123 ioc->diag_trigger_master.MasterData |=
3124 (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
3125 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3128 static DEVICE_ATTR(diag_trigger_master, S_IRUGO | S_IWUSR,
3129 _ctl_diag_trigger_master_show, _ctl_diag_trigger_master_store);
3133 * _ctl_diag_trigger_event_show - show the diag_trigger_event attribute
3134 * @cdev - pointer to embedded class device
3135 * @buf - the buffer returned
3137 * A sysfs 'read/write' shost attribute.
3140 _ctl_diag_trigger_event_show(struct device *cdev,
3141 struct device_attribute *attr, char *buf)
3143 struct Scsi_Host *shost = class_to_shost(cdev);
3144 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3145 unsigned long flags;
3148 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3149 rc = sizeof(struct SL_WH_EVENT_TRIGGERS_T);
3150 memcpy(buf, &ioc->diag_trigger_event, rc);
3151 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3156 * _ctl_diag_trigger_event_store - store the diag_trigger_event attribute
3157 * @cdev - pointer to embedded class device
3158 * @buf - the buffer returned
3160 * A sysfs 'read/write' shost attribute.
3163 _ctl_diag_trigger_event_store(struct device *cdev,
3164 struct device_attribute *attr, const char *buf, size_t count)
3167 struct Scsi_Host *shost = class_to_shost(cdev);
3168 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3169 unsigned long flags;
3172 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3173 sz = min(sizeof(struct SL_WH_EVENT_TRIGGERS_T), count);
3174 memset(&ioc->diag_trigger_event, 0,
3175 sizeof(struct SL_WH_EVENT_TRIGGERS_T));
3176 memcpy(&ioc->diag_trigger_event, buf, sz);
3177 if (ioc->diag_trigger_event.ValidEntries > NUM_VALID_ENTRIES)
3178 ioc->diag_trigger_event.ValidEntries = NUM_VALID_ENTRIES;
3179 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3182 static DEVICE_ATTR(diag_trigger_event, S_IRUGO | S_IWUSR,
3183 _ctl_diag_trigger_event_show, _ctl_diag_trigger_event_store);
3187 * _ctl_diag_trigger_scsi_show - show the diag_trigger_scsi attribute
3188 * @cdev - pointer to embedded class device
3189 * @buf - the buffer returned
3191 * A sysfs 'read/write' shost attribute.
3194 _ctl_diag_trigger_scsi_show(struct device *cdev,
3195 struct device_attribute *attr, char *buf)
3197 struct Scsi_Host *shost = class_to_shost(cdev);
3198 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3199 unsigned long flags;
3202 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3203 rc = sizeof(struct SL_WH_SCSI_TRIGGERS_T);
3204 memcpy(buf, &ioc->diag_trigger_scsi, rc);
3205 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3210 * _ctl_diag_trigger_scsi_store - store the diag_trigger_scsi attribute
3211 * @cdev - pointer to embedded class device
3212 * @buf - the buffer returned
3214 * A sysfs 'read/write' shost attribute.
3217 _ctl_diag_trigger_scsi_store(struct device *cdev,
3218 struct device_attribute *attr, const char *buf, size_t count)
3220 struct Scsi_Host *shost = class_to_shost(cdev);
3221 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3222 unsigned long flags;
3225 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3226 sz = min(sizeof(struct SL_WH_SCSI_TRIGGERS_T), count);
3227 memset(&ioc->diag_trigger_scsi, 0,
3228 sizeof(struct SL_WH_EVENT_TRIGGERS_T));
3229 memcpy(&ioc->diag_trigger_scsi, buf, sz);
3230 if (ioc->diag_trigger_scsi.ValidEntries > NUM_VALID_ENTRIES)
3231 ioc->diag_trigger_scsi.ValidEntries = NUM_VALID_ENTRIES;
3232 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3235 static DEVICE_ATTR(diag_trigger_scsi, S_IRUGO | S_IWUSR,
3236 _ctl_diag_trigger_scsi_show, _ctl_diag_trigger_scsi_store);
3240 * _ctl_diag_trigger_scsi_show - show the diag_trigger_mpi attribute
3241 * @cdev - pointer to embedded class device
3242 * @buf - the buffer returned
3244 * A sysfs 'read/write' shost attribute.
3247 _ctl_diag_trigger_mpi_show(struct device *cdev,
3248 struct device_attribute *attr, char *buf)
3250 struct Scsi_Host *shost = class_to_shost(cdev);
3251 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3252 unsigned long flags;
3255 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3256 rc = sizeof(struct SL_WH_MPI_TRIGGERS_T);
3257 memcpy(buf, &ioc->diag_trigger_mpi, rc);
3258 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3263 * _ctl_diag_trigger_mpi_store - store the diag_trigger_mpi attribute
3264 * @cdev - pointer to embedded class device
3265 * @buf - the buffer returned
3267 * A sysfs 'read/write' shost attribute.
3270 _ctl_diag_trigger_mpi_store(struct device *cdev,
3271 struct device_attribute *attr, const char *buf, size_t count)
3273 struct Scsi_Host *shost = class_to_shost(cdev);
3274 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
3275 unsigned long flags;
3278 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
3279 sz = min(sizeof(struct SL_WH_MPI_TRIGGERS_T), count);
3280 memset(&ioc->diag_trigger_mpi, 0,
3281 sizeof(ioc->diag_trigger_mpi));
3282 memcpy(&ioc->diag_trigger_mpi, buf, sz);
3283 if (ioc->diag_trigger_mpi.ValidEntries > NUM_VALID_ENTRIES)
3284 ioc->diag_trigger_mpi.ValidEntries = NUM_VALID_ENTRIES;
3285 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
3289 static DEVICE_ATTR(diag_trigger_mpi, S_IRUGO | S_IWUSR,
3290 _ctl_diag_trigger_mpi_show, _ctl_diag_trigger_mpi_store);
3292 /*********** diagnostic trigger suppport *** END ****************************/
3296 /*****************************************/
3298 struct device_attribute *mpt3sas_host_attrs[] = {
3299 &dev_attr_version_fw,
3300 &dev_attr_version_bios,
3301 &dev_attr_version_mpi,
3302 &dev_attr_version_product,
3303 &dev_attr_version_nvdata_persistent,
3304 &dev_attr_version_nvdata_default,
3305 &dev_attr_board_name,
3306 &dev_attr_board_assembly,
3307 &dev_attr_board_tracer,
3309 &dev_attr_device_delay,
3310 &dev_attr_logging_level,
3311 &dev_attr_fwfault_debug,
3312 &dev_attr_fw_queue_depth,
3313 &dev_attr_host_sas_address,
3314 &dev_attr_ioc_reset_count,
3315 &dev_attr_host_trace_buffer_size,
3316 &dev_attr_host_trace_buffer,
3317 &dev_attr_host_trace_buffer_enable,
3318 &dev_attr_reply_queue_count,
3319 &dev_attr_diag_trigger_master,
3320 &dev_attr_diag_trigger_event,
3321 &dev_attr_diag_trigger_scsi,
3322 &dev_attr_diag_trigger_mpi,
3323 &dev_attr_BRM_status,
3327 /* device attributes */
3330 * _ctl_device_sas_address_show - sas address
3331 * @cdev - pointer to embedded class device
3332 * @buf - the buffer returned
3334 * This is the sas address for the target
3336 * A sysfs 'read-only' shost attribute.
3339 _ctl_device_sas_address_show(struct device *dev, struct device_attribute *attr,
3342 struct scsi_device *sdev = to_scsi_device(dev);
3343 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3345 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
3346 (unsigned long long)sas_device_priv_data->sas_target->sas_address);
3348 static DEVICE_ATTR(sas_address, S_IRUGO, _ctl_device_sas_address_show, NULL);
3351 * _ctl_device_handle_show - device handle
3352 * @cdev - pointer to embedded class device
3353 * @buf - the buffer returned
3355 * This is the firmware assigned device handle
3357 * A sysfs 'read-only' shost attribute.
3360 _ctl_device_handle_show(struct device *dev, struct device_attribute *attr,
3363 struct scsi_device *sdev = to_scsi_device(dev);
3364 struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
3366 return snprintf(buf, PAGE_SIZE, "0x%04x\n",
3367 sas_device_priv_data->sas_target->handle);
3369 static DEVICE_ATTR(sas_device_handle, S_IRUGO, _ctl_device_handle_show, NULL);
3371 struct device_attribute *mpt3sas_dev_attrs[] = {
3372 &dev_attr_sas_address,
3373 &dev_attr_sas_device_handle,
3377 /* file operations table for mpt3ctl device */
3378 static const struct file_operations ctl_fops = {
3379 .owner = THIS_MODULE,
3380 .unlocked_ioctl = _ctl_ioctl,
3382 .fasync = _ctl_fasync,
3383 #ifdef CONFIG_COMPAT
3384 .compat_ioctl = _ctl_ioctl_compat,
3388 /* file operations table for mpt2ctl device */
3389 static const struct file_operations ctl_gen2_fops = {
3390 .owner = THIS_MODULE,
3391 .unlocked_ioctl = _ctl_mpt2_ioctl,
3393 .fasync = _ctl_fasync,
3394 #ifdef CONFIG_COMPAT
3395 .compat_ioctl = _ctl_mpt2_ioctl_compat,
3399 static struct miscdevice ctl_dev = {
3400 .minor = MPT3SAS_MINOR,
3401 .name = MPT3SAS_DEV_NAME,
3405 static struct miscdevice gen2_ctl_dev = {
3406 .minor = MPT2SAS_MINOR,
3407 .name = MPT2SAS_DEV_NAME,
3408 .fops = &ctl_gen2_fops,
3412 * mpt3sas_ctl_init - main entry point for ctl.
3416 mpt3sas_ctl_init(ushort hbas_to_enumerate)
3420 /* Don't register mpt3ctl ioctl device if
3421 * hbas_to_enumarate is one.
3423 if (hbas_to_enumerate != 1)
3424 if (misc_register(&ctl_dev) < 0)
3425 pr_err("%s can't register misc device [minor=%d]\n",
3426 MPT3SAS_DRIVER_NAME, MPT3SAS_MINOR);
3428 /* Don't register mpt3ctl ioctl device if
3429 * hbas_to_enumarate is two.
3431 if (hbas_to_enumerate != 2)
3432 if (misc_register(&gen2_ctl_dev) < 0)
3433 pr_err("%s can't register misc device [minor=%d]\n",
3434 MPT2SAS_DRIVER_NAME, MPT2SAS_MINOR);
3436 init_waitqueue_head(&ctl_poll_wait);
3440 * mpt3sas_ctl_exit - exit point for ctl
3444 mpt3sas_ctl_exit(ushort hbas_to_enumerate)
3446 struct MPT3SAS_ADAPTER *ioc;
3449 list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
3451 /* free memory associated to diag buffers */
3452 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
3453 if (!ioc->diag_buffer[i])
3455 if (!(ioc->diag_buffer_status[i] &
3456 MPT3_DIAG_BUFFER_IS_REGISTERED))
3458 if ((ioc->diag_buffer_status[i] &
3459 MPT3_DIAG_BUFFER_IS_RELEASED))
3461 pci_free_consistent(ioc->pdev, ioc->diag_buffer_sz[i],
3462 ioc->diag_buffer[i], ioc->diag_buffer_dma[i]);
3463 ioc->diag_buffer[i] = NULL;
3464 ioc->diag_buffer_status[i] = 0;
3467 kfree(ioc->event_log);
3469 if (hbas_to_enumerate != 1)
3470 misc_deregister(&ctl_dev);
3471 if (hbas_to_enumerate != 2)
3472 misc_deregister(&gen2_ctl_dev);