2 * Management Module Support for MPT (Message Passing Technology) based
5 * This code is based on drivers/scsi/mpt2sas/mpt2_ctl.c
6 * Copyright (C) 2007-2010 LSI Corporation
7 * (mailto:DL-MPTFusionLinux@lsi.com)
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.
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.
20 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
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22 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
23 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
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30 * DISCLAIMER OF LIABILITY
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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>
59 #include <linux/uaccess.h>
61 #include "mpt2sas_base.h"
62 #include "mpt2sas_ctl.h"
64 static struct fasync_struct *async_queue;
65 static DECLARE_WAIT_QUEUE_HEAD(ctl_poll_wait);
67 static int _ctl_send_release(struct MPT2SAS_ADAPTER *ioc, u8 buffer_type,
71 * enum block_state - blocking state
72 * @NON_BLOCKING: non blocking
75 * These states are for ioctls that need to wait for a response
76 * from firmware, so they probably require sleep.
84 * _ctl_sas_device_find_by_handle - sas device search
85 * @ioc: per adapter object
86 * @handle: sas device handle (assigned by firmware)
87 * Context: Calling function should acquire ioc->sas_device_lock
89 * This searches for sas_device based on sas_address, then return sas_device
92 static struct _sas_device *
93 _ctl_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
95 struct _sas_device *sas_device, *r;
98 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
99 if (sas_device->handle != handle)
109 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
111 * _ctl_display_some_debug - debug routine
112 * @ioc: per adapter object
113 * @smid: system request message index
114 * @calling_function_name: string pass from calling function
115 * @mpi_reply: reply message frame
118 * Function for displaying debug info helpfull when debugging issues
122 _ctl_display_some_debug(struct MPT2SAS_ADAPTER *ioc, u16 smid,
123 char *calling_function_name, MPI2DefaultReply_t *mpi_reply)
125 Mpi2ConfigRequest_t *mpi_request;
128 if (!(ioc->logging_level & MPT_DEBUG_IOCTL))
131 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
132 switch (mpi_request->Function) {
133 case MPI2_FUNCTION_SCSI_IO_REQUEST:
135 Mpi2SCSIIORequest_t *scsi_request =
136 (Mpi2SCSIIORequest_t *)mpi_request;
138 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
139 "scsi_io, cmd(0x%02x), cdb_len(%d)",
140 scsi_request->CDB.CDB32[0],
141 le16_to_cpu(scsi_request->IoFlags) & 0xF);
142 desc = ioc->tmp_string;
145 case MPI2_FUNCTION_SCSI_TASK_MGMT:
148 case MPI2_FUNCTION_IOC_INIT:
151 case MPI2_FUNCTION_IOC_FACTS:
154 case MPI2_FUNCTION_CONFIG:
156 Mpi2ConfigRequest_t *config_request =
157 (Mpi2ConfigRequest_t *)mpi_request;
159 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
160 "config, type(0x%02x), ext_type(0x%02x), number(%d)",
161 (config_request->Header.PageType &
162 MPI2_CONFIG_PAGETYPE_MASK), config_request->ExtPageType,
163 config_request->Header.PageNumber);
164 desc = ioc->tmp_string;
167 case MPI2_FUNCTION_PORT_FACTS:
170 case MPI2_FUNCTION_PORT_ENABLE:
171 desc = "port_enable";
173 case MPI2_FUNCTION_EVENT_NOTIFICATION:
174 desc = "event_notification";
176 case MPI2_FUNCTION_FW_DOWNLOAD:
177 desc = "fw_download";
179 case MPI2_FUNCTION_FW_UPLOAD:
182 case MPI2_FUNCTION_RAID_ACTION:
183 desc = "raid_action";
185 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
187 Mpi2SCSIIORequest_t *scsi_request =
188 (Mpi2SCSIIORequest_t *)mpi_request;
190 snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
191 "raid_pass, cmd(0x%02x), cdb_len(%d)",
192 scsi_request->CDB.CDB32[0],
193 le16_to_cpu(scsi_request->IoFlags) & 0xF);
194 desc = ioc->tmp_string;
197 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
198 desc = "sas_iounit_cntl";
200 case MPI2_FUNCTION_SATA_PASSTHROUGH:
203 case MPI2_FUNCTION_DIAG_BUFFER_POST:
204 desc = "diag_buffer_post";
206 case MPI2_FUNCTION_DIAG_RELEASE:
207 desc = "diag_release";
209 case MPI2_FUNCTION_SMP_PASSTHROUGH:
210 desc = "smp_passthrough";
217 printk(MPT2SAS_INFO_FMT "%s: %s, smid(%d)\n",
218 ioc->name, calling_function_name, desc, smid);
223 if (mpi_reply->IOCStatus || mpi_reply->IOCLogInfo)
224 printk(MPT2SAS_INFO_FMT
225 "\tiocstatus(0x%04x), loginfo(0x%08x)\n",
226 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
227 le32_to_cpu(mpi_reply->IOCLogInfo));
229 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
230 mpi_request->Function ==
231 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
232 Mpi2SCSIIOReply_t *scsi_reply =
233 (Mpi2SCSIIOReply_t *)mpi_reply;
234 struct _sas_device *sas_device = NULL;
237 spin_lock_irqsave(&ioc->sas_device_lock, flags);
238 sas_device = _ctl_sas_device_find_by_handle(ioc,
239 le16_to_cpu(scsi_reply->DevHandle));
241 printk(MPT2SAS_WARN_FMT "\tsas_address(0x%016llx), "
242 "phy(%d)\n", ioc->name, (unsigned long long)
243 sas_device->sas_address, sas_device->phy);
244 printk(MPT2SAS_WARN_FMT
245 "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
246 ioc->name, sas_device->enclosure_logical_id,
249 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
250 if (scsi_reply->SCSIState || scsi_reply->SCSIStatus)
251 printk(MPT2SAS_INFO_FMT
252 "\tscsi_state(0x%02x), scsi_status"
253 "(0x%02x)\n", ioc->name,
254 scsi_reply->SCSIState,
255 scsi_reply->SCSIStatus);
261 * mpt2sas_ctl_done - ctl module completion routine
262 * @ioc: per adapter object
263 * @smid: system request message index
264 * @msix_index: MSIX table index supplied by the OS
265 * @reply: reply message frame(lower 32bit addr)
268 * The callback handler when using ioc->ctl_cb_idx.
270 * Return 1 meaning mf should be freed from _base_interrupt
271 * 0 means the mf is freed from this function.
274 mpt2sas_ctl_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
277 MPI2DefaultReply_t *mpi_reply;
278 Mpi2SCSIIOReply_t *scsiio_reply;
279 const void *sense_data;
282 if (ioc->ctl_cmds.status == MPT2_CMD_NOT_USED)
284 if (ioc->ctl_cmds.smid != smid)
286 ioc->ctl_cmds.status |= MPT2_CMD_COMPLETE;
287 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
289 memcpy(ioc->ctl_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
290 ioc->ctl_cmds.status |= MPT2_CMD_REPLY_VALID;
292 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
293 mpi_reply->Function ==
294 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
295 scsiio_reply = (Mpi2SCSIIOReply_t *)mpi_reply;
296 if (scsiio_reply->SCSIState &
297 MPI2_SCSI_STATE_AUTOSENSE_VALID) {
298 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
299 le32_to_cpu(scsiio_reply->SenseCount));
300 sense_data = mpt2sas_base_get_sense_buffer(ioc,
302 memcpy(ioc->ctl_cmds.sense, sense_data, sz);
306 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
307 _ctl_display_some_debug(ioc, smid, "ctl_done", mpi_reply);
309 ioc->ctl_cmds.status &= ~MPT2_CMD_PENDING;
310 complete(&ioc->ctl_cmds.done);
315 * _ctl_check_event_type - determines when an event needs logging
316 * @ioc: per adapter object
317 * @event: firmware event
319 * The bitmask in ioc->event_type[] indicates which events should be
320 * be saved in the driver event_log. This bitmask is set by application.
322 * Returns 1 when event should be captured, or zero means no match.
325 _ctl_check_event_type(struct MPT2SAS_ADAPTER *ioc, u16 event)
330 if (event >= 128 || !event || !ioc->event_log)
333 desired_event = (1 << (event % 32));
337 return desired_event & ioc->event_type[i];
341 * mpt2sas_ctl_add_to_event_log - add event
342 * @ioc: per adapter object
343 * @mpi_reply: reply message frame
348 mpt2sas_ctl_add_to_event_log(struct MPT2SAS_ADAPTER *ioc,
349 Mpi2EventNotificationReply_t *mpi_reply)
351 struct MPT2_IOCTL_EVENTS *event_log;
354 u32 sz, event_data_sz;
360 event = le16_to_cpu(mpi_reply->Event);
362 if (_ctl_check_event_type(ioc, event)) {
364 /* insert entry into circular event_log */
365 i = ioc->event_context % MPT2SAS_CTL_EVENT_LOG_SIZE;
366 event_log = ioc->event_log;
367 event_log[i].event = event;
368 event_log[i].context = ioc->event_context++;
370 event_data_sz = le16_to_cpu(mpi_reply->EventDataLength)*4;
371 sz = min_t(u32, event_data_sz, MPT2_EVENT_DATA_SIZE);
372 memset(event_log[i].data, 0, MPT2_EVENT_DATA_SIZE);
373 memcpy(event_log[i].data, mpi_reply->EventData, sz);
377 /* This aen_event_read_flag flag is set until the
378 * application has read the event log.
379 * For MPI2_EVENT_LOG_ENTRY_ADDED, we always notify.
381 if (event == MPI2_EVENT_LOG_ENTRY_ADDED ||
382 (send_aen && !ioc->aen_event_read_flag)) {
383 ioc->aen_event_read_flag = 1;
384 wake_up_interruptible(&ctl_poll_wait);
386 kill_fasync(&async_queue, SIGIO, POLL_IN);
391 * mpt2sas_ctl_event_callback - firmware event handler (called at ISR time)
392 * @ioc: per adapter object
393 * @msix_index: MSIX table index supplied by the OS
394 * @reply: reply message frame(lower 32bit addr)
395 * Context: interrupt.
397 * This function merely adds a new work task into ioc->firmware_event_thread.
398 * The tasks are worked from _firmware_event_work in user context.
400 * Return 1 meaning mf should be freed from _base_interrupt
401 * 0 means the mf is freed from this function.
404 mpt2sas_ctl_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index,
407 Mpi2EventNotificationReply_t *mpi_reply;
409 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
410 mpt2sas_ctl_add_to_event_log(ioc, mpi_reply);
415 * _ctl_verify_adapter - validates ioc_number passed from application
416 * @ioc: per adapter object
417 * @iocpp: The ioc pointer is returned in this.
419 * Return (-1) means error, else ioc_number.
422 _ctl_verify_adapter(int ioc_number, struct MPT2SAS_ADAPTER **iocpp)
424 struct MPT2SAS_ADAPTER *ioc;
426 list_for_each_entry(ioc, &mpt2sas_ioc_list, list) {
427 if (ioc->id != ioc_number)
437 * mpt2sas_ctl_reset_handler - reset callback handler (for ctl)
438 * @ioc: per adapter object
439 * @reset_phase: phase
441 * The handler for doing any required cleanup or initialization.
443 * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET,
444 * MPT2_IOC_DONE_RESET
447 mpt2sas_ctl_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
452 switch (reset_phase) {
453 case MPT2_IOC_PRE_RESET:
454 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
455 "MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
456 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
457 if (!(ioc->diag_buffer_status[i] &
458 MPT2_DIAG_BUFFER_IS_REGISTERED))
460 if ((ioc->diag_buffer_status[i] &
461 MPT2_DIAG_BUFFER_IS_RELEASED))
463 _ctl_send_release(ioc, i, &issue_reset);
466 case MPT2_IOC_AFTER_RESET:
467 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
468 "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
469 if (ioc->ctl_cmds.status & MPT2_CMD_PENDING) {
470 ioc->ctl_cmds.status |= MPT2_CMD_RESET;
471 mpt2sas_base_free_smid(ioc, ioc->ctl_cmds.smid);
472 complete(&ioc->ctl_cmds.done);
475 case MPT2_IOC_DONE_RESET:
476 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
477 "MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
479 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
480 if (!(ioc->diag_buffer_status[i] &
481 MPT2_DIAG_BUFFER_IS_REGISTERED))
483 if ((ioc->diag_buffer_status[i] &
484 MPT2_DIAG_BUFFER_IS_RELEASED))
486 ioc->diag_buffer_status[i] |=
487 MPT2_DIAG_BUFFER_IS_DIAG_RESET;
499 * Called when application request fasyn callback handler.
502 _ctl_fasync(int fd, struct file *filep, int mode)
504 return fasync_helper(fd, filep, mode, &async_queue);
512 * Called when application releases the fasyn callback handler.
515 _ctl_release(struct inode *inode, struct file *filep)
517 return fasync_helper(-1, filep, 0, &async_queue);
527 _ctl_poll(struct file *filep, poll_table *wait)
529 struct MPT2SAS_ADAPTER *ioc;
531 poll_wait(filep, &ctl_poll_wait, wait);
533 list_for_each_entry(ioc, &mpt2sas_ioc_list, list) {
534 if (ioc->aen_event_read_flag)
535 return POLLIN | POLLRDNORM;
541 * _ctl_set_task_mid - assign an active smid to tm request
542 * @ioc: per adapter object
543 * @karg - (struct mpt2_ioctl_command)
544 * @tm_request - pointer to mf from user space
546 * Returns 0 when an smid if found, else fail.
547 * during failure, the reply frame is filled.
550 _ctl_set_task_mid(struct MPT2SAS_ADAPTER *ioc, struct mpt2_ioctl_command *karg,
551 Mpi2SCSITaskManagementRequest_t *tm_request)
556 struct scsi_cmnd *scmd;
557 struct MPT2SAS_DEVICE *priv_data;
559 Mpi2SCSITaskManagementReply_t *tm_reply;
564 if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
566 else if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK)
571 lun = scsilun_to_int((struct scsi_lun *)tm_request->LUN);
573 handle = le16_to_cpu(tm_request->DevHandle);
574 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
575 for (i = ioc->scsiio_depth; i && !found; i--) {
576 scmd = ioc->scsi_lookup[i - 1].scmd;
577 if (scmd == NULL || scmd->device == NULL ||
578 scmd->device->hostdata == NULL)
580 if (lun != scmd->device->lun)
582 priv_data = scmd->device->hostdata;
583 if (priv_data->sas_target == NULL)
585 if (priv_data->sas_target->handle != handle)
587 tm_request->TaskMID = cpu_to_le16(ioc->scsi_lookup[i - 1].smid);
590 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
593 dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
594 "handle(0x%04x), lun(%d), no active mid!!\n", ioc->name,
595 desc, le16_to_cpu(tm_request->DevHandle), lun));
596 tm_reply = ioc->ctl_cmds.reply;
597 tm_reply->DevHandle = tm_request->DevHandle;
598 tm_reply->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
599 tm_reply->TaskType = tm_request->TaskType;
600 tm_reply->MsgLength = sizeof(Mpi2SCSITaskManagementReply_t)/4;
601 tm_reply->VP_ID = tm_request->VP_ID;
602 tm_reply->VF_ID = tm_request->VF_ID;
603 sz = min_t(u32, karg->max_reply_bytes, ioc->reply_sz);
604 if (copy_to_user(karg->reply_frame_buf_ptr, ioc->ctl_cmds.reply,
606 printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
611 dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
612 "handle(0x%04x), lun(%d), task_mid(%d)\n", ioc->name,
613 desc, le16_to_cpu(tm_request->DevHandle), lun,
614 le16_to_cpu(tm_request->TaskMID)));
619 * _ctl_do_mpt_command - main handler for MPT2COMMAND opcode
620 * @ioc: per adapter object
621 * @karg - (struct mpt2_ioctl_command)
622 * @mf - pointer to mf in user space
623 * @state - NON_BLOCKING or BLOCKING
626 _ctl_do_mpt_command(struct MPT2SAS_ADAPTER *ioc,
627 struct mpt2_ioctl_command karg, void __user *mf, enum block_state state)
629 MPI2RequestHeader_t *mpi_request = NULL, *request;
630 MPI2DefaultReply_t *mpi_reply;
634 unsigned long timeout, timeleft;
638 void *data_out = NULL;
639 dma_addr_t data_out_dma;
640 size_t data_out_sz = 0;
641 void *data_in = NULL;
642 dma_addr_t data_in_dma;
643 size_t data_in_sz = 0;
646 u16 wait_state_count;
650 if (state == NON_BLOCKING && !mutex_trylock(&ioc->ctl_cmds.mutex))
652 else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex))
655 if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) {
656 printk(MPT2SAS_ERR_FMT "%s: ctl_cmd in use\n",
657 ioc->name, __func__);
662 wait_state_count = 0;
663 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
664 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
665 if (wait_state_count++ == 10) {
666 printk(MPT2SAS_ERR_FMT
667 "%s: failed due to ioc not operational\n",
668 ioc->name, __func__);
673 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
674 printk(MPT2SAS_INFO_FMT "%s: waiting for "
675 "operational state(count=%d)\n", ioc->name,
676 __func__, wait_state_count);
678 if (wait_state_count)
679 printk(MPT2SAS_INFO_FMT "%s: ioc is operational\n",
680 ioc->name, __func__);
682 mpi_request = kzalloc(ioc->request_sz, GFP_KERNEL);
684 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a memory for "
685 "mpi_request\n", ioc->name, __func__);
690 /* copy in request message frame from user */
691 if (copy_from_user(mpi_request, mf, karg.data_sge_offset*4)) {
692 printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, __LINE__,
698 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
699 smid = mpt2sas_base_get_smid_hpr(ioc, ioc->ctl_cb_idx);
701 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
702 ioc->name, __func__);
708 smid = mpt2sas_base_get_smid_scsiio(ioc, ioc->ctl_cb_idx, NULL);
710 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
711 ioc->name, __func__);
718 ioc->ctl_cmds.status = MPT2_CMD_PENDING;
719 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
720 request = mpt2sas_base_get_msg_frame(ioc, smid);
721 memcpy(request, mpi_request, karg.data_sge_offset*4);
722 ioc->ctl_cmds.smid = smid;
723 data_out_sz = karg.data_out_size;
724 data_in_sz = karg.data_in_size;
726 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
727 mpi_request->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
728 if (!le16_to_cpu(mpi_request->FunctionDependent1) ||
729 le16_to_cpu(mpi_request->FunctionDependent1) >
730 ioc->facts.MaxDevHandle) {
732 mpt2sas_base_free_smid(ioc, smid);
737 /* obtain dma-able memory for data transfer */
738 if (data_out_sz) /* WRITE */ {
739 data_out = pci_alloc_consistent(ioc->pdev, data_out_sz,
742 printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
745 mpt2sas_base_free_smid(ioc, smid);
748 if (copy_from_user(data_out, karg.data_out_buf_ptr,
750 printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
753 mpt2sas_base_free_smid(ioc, smid);
758 if (data_in_sz) /* READ */ {
759 data_in = pci_alloc_consistent(ioc->pdev, data_in_sz,
762 printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
765 mpt2sas_base_free_smid(ioc, smid);
770 /* add scatter gather elements */
771 psge = (void *)request + (karg.data_sge_offset*4);
773 if (!data_out_sz && !data_in_sz) {
774 mpt2sas_base_build_zero_len_sge(ioc, psge);
775 } else if (data_out_sz && data_in_sz) {
776 /* WRITE sgel first */
777 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
778 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC);
779 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
780 ioc->base_add_sg_single(psge, sgl_flags |
781 data_out_sz, data_out_dma);
784 psge += ioc->sge_size;
787 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
788 MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
789 MPI2_SGE_FLAGS_END_OF_LIST);
790 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
791 ioc->base_add_sg_single(psge, sgl_flags |
792 data_in_sz, data_in_dma);
793 } else if (data_out_sz) /* WRITE */ {
794 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
795 MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
796 MPI2_SGE_FLAGS_END_OF_LIST | MPI2_SGE_FLAGS_HOST_TO_IOC);
797 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
798 ioc->base_add_sg_single(psge, sgl_flags |
799 data_out_sz, data_out_dma);
800 } else if (data_in_sz) /* READ */ {
801 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
802 MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
803 MPI2_SGE_FLAGS_END_OF_LIST);
804 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
805 ioc->base_add_sg_single(psge, sgl_flags |
806 data_in_sz, data_in_dma);
809 /* send command to firmware */
810 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
811 _ctl_display_some_debug(ioc, smid, "ctl_request", NULL);
814 switch (mpi_request->Function) {
815 case MPI2_FUNCTION_SCSI_IO_REQUEST:
816 case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
818 Mpi2SCSIIORequest_t *scsiio_request =
819 (Mpi2SCSIIORequest_t *)request;
820 scsiio_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
821 scsiio_request->SenseBufferLowAddress =
822 mpt2sas_base_get_sense_buffer_dma(ioc, smid);
823 memset(ioc->ctl_cmds.sense, 0, SCSI_SENSE_BUFFERSIZE);
824 if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)
825 mpt2sas_base_put_smid_scsi_io(ioc, smid,
826 le16_to_cpu(mpi_request->FunctionDependent1));
828 mpt2sas_base_put_smid_default(ioc, smid);
831 case MPI2_FUNCTION_SCSI_TASK_MGMT:
833 Mpi2SCSITaskManagementRequest_t *tm_request =
834 (Mpi2SCSITaskManagementRequest_t *)request;
836 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "TASK_MGMT: "
837 "handle(0x%04x), task_type(0x%02x)\n", ioc->name,
838 le16_to_cpu(tm_request->DevHandle), tm_request->TaskType));
840 if (tm_request->TaskType ==
841 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK ||
842 tm_request->TaskType ==
843 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) {
844 if (_ctl_set_task_mid(ioc, &karg, tm_request)) {
845 mpt2sas_base_free_smid(ioc, smid);
850 mpt2sas_scsih_set_tm_flag(ioc, le16_to_cpu(
851 tm_request->DevHandle));
852 mpt2sas_base_put_smid_hi_priority(ioc, smid);
855 case MPI2_FUNCTION_SMP_PASSTHROUGH:
857 Mpi2SmpPassthroughRequest_t *smp_request =
858 (Mpi2SmpPassthroughRequest_t *)mpi_request;
861 /* ioc determines which port to use */
862 smp_request->PhysicalPort = 0xFF;
863 if (smp_request->PassthroughFlags &
864 MPI2_SMP_PT_REQ_PT_FLAGS_IMMEDIATE)
865 data = (u8 *)&smp_request->SGL;
869 if (data[1] == 0x91 && (data[10] == 1 || data[10] == 2)) {
870 ioc->ioc_link_reset_in_progress = 1;
871 ioc->ignore_loginfos = 1;
873 mpt2sas_base_put_smid_default(ioc, smid);
876 case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
878 Mpi2SasIoUnitControlRequest_t *sasiounit_request =
879 (Mpi2SasIoUnitControlRequest_t *)mpi_request;
881 if (sasiounit_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET
882 || sasiounit_request->Operation ==
883 MPI2_SAS_OP_PHY_LINK_RESET) {
884 ioc->ioc_link_reset_in_progress = 1;
885 ioc->ignore_loginfos = 1;
887 mpt2sas_base_put_smid_default(ioc, smid);
891 mpt2sas_base_put_smid_default(ioc, smid);
895 if (karg.timeout < MPT2_IOCTL_DEFAULT_TIMEOUT)
896 timeout = MPT2_IOCTL_DEFAULT_TIMEOUT;
898 timeout = karg.timeout;
899 init_completion(&ioc->ctl_cmds.done);
900 timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
902 if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
903 Mpi2SCSITaskManagementRequest_t *tm_request =
904 (Mpi2SCSITaskManagementRequest_t *)mpi_request;
905 mpt2sas_scsih_clear_tm_flag(ioc, le16_to_cpu(
906 tm_request->DevHandle));
907 } else if ((mpi_request->Function == MPI2_FUNCTION_SMP_PASSTHROUGH ||
908 mpi_request->Function == MPI2_FUNCTION_SAS_IO_UNIT_CONTROL) &&
909 ioc->ioc_link_reset_in_progress) {
910 ioc->ioc_link_reset_in_progress = 0;
911 ioc->ignore_loginfos = 0;
913 if (!(ioc->ctl_cmds.status & MPT2_CMD_COMPLETE)) {
914 printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name,
916 _debug_dump_mf(mpi_request, karg.data_sge_offset);
917 if (!(ioc->ctl_cmds.status & MPT2_CMD_RESET))
919 goto issue_host_reset;
922 mpi_reply = ioc->ctl_cmds.reply;
923 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
925 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
926 if (mpi_reply->Function == MPI2_FUNCTION_SCSI_TASK_MGMT &&
927 (ioc->logging_level & MPT_DEBUG_TM)) {
928 Mpi2SCSITaskManagementReply_t *tm_reply =
929 (Mpi2SCSITaskManagementReply_t *)mpi_reply;
931 printk(MPT2SAS_INFO_FMT "TASK_MGMT: "
932 "IOCStatus(0x%04x), IOCLogInfo(0x%08x), "
933 "TerminationCount(0x%08x)\n", ioc->name,
934 le16_to_cpu(tm_reply->IOCStatus),
935 le32_to_cpu(tm_reply->IOCLogInfo),
936 le32_to_cpu(tm_reply->TerminationCount));
939 /* copy out xdata to user */
941 if (copy_to_user(karg.data_in_buf_ptr, data_in,
943 printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
950 /* copy out reply message frame to user */
951 if (karg.max_reply_bytes) {
952 sz = min_t(u32, karg.max_reply_bytes, ioc->reply_sz);
953 if (copy_to_user(karg.reply_frame_buf_ptr, ioc->ctl_cmds.reply,
955 printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
962 /* copy out sense to user */
963 if (karg.max_sense_bytes && (mpi_request->Function ==
964 MPI2_FUNCTION_SCSI_IO_REQUEST || mpi_request->Function ==
965 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) {
966 sz = min_t(u32, karg.max_sense_bytes, SCSI_SENSE_BUFFERSIZE);
967 if (copy_to_user(karg.sense_data_ptr,
968 ioc->ctl_cmds.sense, sz)) {
969 printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
979 if ((mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
980 mpi_request->Function ==
981 MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) {
982 printk(MPT2SAS_INFO_FMT "issue target reset: handle "
983 "= (0x%04x)\n", ioc->name,
984 le16_to_cpu(mpi_request->FunctionDependent1));
985 mpt2sas_halt_firmware(ioc);
986 mpt2sas_scsih_issue_tm(ioc,
987 le16_to_cpu(mpi_request->FunctionDependent1), 0, 0,
988 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 10,
990 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
992 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
998 /* free memory associated with sg buffers */
1000 pci_free_consistent(ioc->pdev, data_in_sz, data_in,
1004 pci_free_consistent(ioc->pdev, data_out_sz, data_out,
1008 ioc->ctl_cmds.status = MPT2_CMD_NOT_USED;
1009 mutex_unlock(&ioc->ctl_cmds.mutex);
1014 * _ctl_getiocinfo - main handler for MPT2IOCINFO opcode
1015 * @arg - user space buffer containing ioctl content
1018 _ctl_getiocinfo(void __user *arg)
1020 struct mpt2_ioctl_iocinfo karg;
1021 struct MPT2SAS_ADAPTER *ioc;
1024 if (copy_from_user(&karg, arg, sizeof(karg))) {
1025 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1026 __FILE__, __LINE__, __func__);
1029 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
1032 dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name,
1035 memset(&karg, 0 , sizeof(karg));
1036 karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2;
1038 karg.port_number = ioc->pfacts[0].PortNumber;
1039 pci_read_config_byte(ioc->pdev, PCI_CLASS_REVISION, &revision);
1040 karg.hw_rev = revision;
1041 karg.pci_id = ioc->pdev->device;
1042 karg.subsystem_device = ioc->pdev->subsystem_device;
1043 karg.subsystem_vendor = ioc->pdev->subsystem_vendor;
1044 karg.pci_information.u.bits.bus = ioc->pdev->bus->number;
1045 karg.pci_information.u.bits.device = PCI_SLOT(ioc->pdev->devfn);
1046 karg.pci_information.u.bits.function = PCI_FUNC(ioc->pdev->devfn);
1047 karg.pci_information.segment_id = pci_domain_nr(ioc->pdev->bus);
1048 karg.firmware_version = ioc->facts.FWVersion.Word;
1049 strcpy(karg.driver_version, MPT2SAS_DRIVER_NAME);
1050 strcat(karg.driver_version, "-");
1051 strcat(karg.driver_version, MPT2SAS_DRIVER_VERSION);
1052 karg.bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
1054 if (copy_to_user(arg, &karg, sizeof(karg))) {
1055 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1056 __FILE__, __LINE__, __func__);
1063 * _ctl_eventquery - main handler for MPT2EVENTQUERY opcode
1064 * @arg - user space buffer containing ioctl content
1067 _ctl_eventquery(void __user *arg)
1069 struct mpt2_ioctl_eventquery karg;
1070 struct MPT2SAS_ADAPTER *ioc;
1072 if (copy_from_user(&karg, arg, sizeof(karg))) {
1073 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1074 __FILE__, __LINE__, __func__);
1077 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
1080 dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name,
1083 karg.event_entries = MPT2SAS_CTL_EVENT_LOG_SIZE;
1084 memcpy(karg.event_types, ioc->event_type,
1085 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1087 if (copy_to_user(arg, &karg, sizeof(karg))) {
1088 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1089 __FILE__, __LINE__, __func__);
1096 * _ctl_eventenable - main handler for MPT2EVENTENABLE opcode
1097 * @arg - user space buffer containing ioctl content
1100 _ctl_eventenable(void __user *arg)
1102 struct mpt2_ioctl_eventenable karg;
1103 struct MPT2SAS_ADAPTER *ioc;
1105 if (copy_from_user(&karg, arg, sizeof(karg))) {
1106 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1107 __FILE__, __LINE__, __func__);
1110 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
1113 dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name,
1118 memcpy(ioc->event_type, karg.event_types,
1119 MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
1120 mpt2sas_base_validate_event_type(ioc, ioc->event_type);
1122 /* initialize event_log */
1123 ioc->event_context = 0;
1124 ioc->aen_event_read_flag = 0;
1125 ioc->event_log = kcalloc(MPT2SAS_CTL_EVENT_LOG_SIZE,
1126 sizeof(struct MPT2_IOCTL_EVENTS), GFP_KERNEL);
1127 if (!ioc->event_log) {
1128 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1129 __FILE__, __LINE__, __func__);
1136 * _ctl_eventreport - main handler for MPT2EVENTREPORT opcode
1137 * @arg - user space buffer containing ioctl content
1140 _ctl_eventreport(void __user *arg)
1142 struct mpt2_ioctl_eventreport karg;
1143 struct MPT2SAS_ADAPTER *ioc;
1144 u32 number_bytes, max_events, max;
1145 struct mpt2_ioctl_eventreport __user *uarg = arg;
1147 if (copy_from_user(&karg, arg, sizeof(karg))) {
1148 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1149 __FILE__, __LINE__, __func__);
1152 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
1155 dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name,
1158 number_bytes = karg.hdr.max_data_size -
1159 sizeof(struct mpt2_ioctl_header);
1160 max_events = number_bytes/sizeof(struct MPT2_IOCTL_EVENTS);
1161 max = min_t(u32, MPT2SAS_CTL_EVENT_LOG_SIZE, max_events);
1163 /* If fewer than 1 event is requested, there must have
1164 * been some type of error.
1166 if (!max || !ioc->event_log)
1169 number_bytes = max * sizeof(struct MPT2_IOCTL_EVENTS);
1170 if (copy_to_user(uarg->event_data, ioc->event_log, number_bytes)) {
1171 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1172 __FILE__, __LINE__, __func__);
1176 /* reset flag so SIGIO can restart */
1177 ioc->aen_event_read_flag = 0;
1182 * _ctl_do_reset - main handler for MPT2HARDRESET opcode
1183 * @arg - user space buffer containing ioctl content
1186 _ctl_do_reset(void __user *arg)
1188 struct mpt2_ioctl_diag_reset karg;
1189 struct MPT2SAS_ADAPTER *ioc;
1192 if (copy_from_user(&karg, arg, sizeof(karg))) {
1193 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1194 __FILE__, __LINE__, __func__);
1197 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
1200 dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name,
1203 retval = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1205 printk(MPT2SAS_INFO_FMT "host reset: %s\n",
1206 ioc->name, ((!retval) ? "SUCCESS" : "FAILED"));
1211 * _ctl_btdh_search_sas_device - searching for sas device
1212 * @ioc: per adapter object
1213 * @btdh: btdh ioctl payload
1216 _ctl_btdh_search_sas_device(struct MPT2SAS_ADAPTER *ioc,
1217 struct mpt2_ioctl_btdh_mapping *btdh)
1219 struct _sas_device *sas_device;
1220 unsigned long flags;
1223 if (list_empty(&ioc->sas_device_list))
1226 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1227 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
1228 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1229 btdh->handle == sas_device->handle) {
1230 btdh->bus = sas_device->channel;
1231 btdh->id = sas_device->id;
1234 } else if (btdh->bus == sas_device->channel && btdh->id ==
1235 sas_device->id && btdh->handle == 0xFFFF) {
1236 btdh->handle = sas_device->handle;
1242 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1247 * _ctl_btdh_search_raid_device - searching for raid device
1248 * @ioc: per adapter object
1249 * @btdh: btdh ioctl payload
1252 _ctl_btdh_search_raid_device(struct MPT2SAS_ADAPTER *ioc,
1253 struct mpt2_ioctl_btdh_mapping *btdh)
1255 struct _raid_device *raid_device;
1256 unsigned long flags;
1259 if (list_empty(&ioc->raid_device_list))
1262 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1263 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
1264 if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
1265 btdh->handle == raid_device->handle) {
1266 btdh->bus = raid_device->channel;
1267 btdh->id = raid_device->id;
1270 } else if (btdh->bus == raid_device->channel && btdh->id ==
1271 raid_device->id && btdh->handle == 0xFFFF) {
1272 btdh->handle = raid_device->handle;
1278 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1283 * _ctl_btdh_mapping - main handler for MPT2BTDHMAPPING opcode
1284 * @arg - user space buffer containing ioctl content
1287 _ctl_btdh_mapping(void __user *arg)
1289 struct mpt2_ioctl_btdh_mapping karg;
1290 struct MPT2SAS_ADAPTER *ioc;
1293 if (copy_from_user(&karg, arg, sizeof(karg))) {
1294 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1295 __FILE__, __LINE__, __func__);
1298 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
1301 dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
1304 rc = _ctl_btdh_search_sas_device(ioc, &karg);
1306 _ctl_btdh_search_raid_device(ioc, &karg);
1308 if (copy_to_user(arg, &karg, sizeof(karg))) {
1309 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1310 __FILE__, __LINE__, __func__);
1317 * _ctl_diag_capability - return diag buffer capability
1318 * @ioc: per adapter object
1319 * @buffer_type: specifies either TRACE, SNAPSHOT, or EXTENDED
1321 * returns 1 when diag buffer support is enabled in firmware
1324 _ctl_diag_capability(struct MPT2SAS_ADAPTER *ioc, u8 buffer_type)
1328 switch (buffer_type) {
1329 case MPI2_DIAG_BUF_TYPE_TRACE:
1330 if (ioc->facts.IOCCapabilities &
1331 MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER)
1334 case MPI2_DIAG_BUF_TYPE_SNAPSHOT:
1335 if (ioc->facts.IOCCapabilities &
1336 MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER)
1339 case MPI2_DIAG_BUF_TYPE_EXTENDED:
1340 if (ioc->facts.IOCCapabilities &
1341 MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER)
1349 * _ctl_diag_register_2 - wrapper for registering diag buffer support
1350 * @ioc: per adapter object
1351 * @diag_register: the diag_register struct passed in from user space
1355 _ctl_diag_register_2(struct MPT2SAS_ADAPTER *ioc,
1356 struct mpt2_diag_register *diag_register)
1359 void *request_data = NULL;
1360 dma_addr_t request_data_dma;
1361 u32 request_data_sz = 0;
1362 Mpi2DiagBufferPostRequest_t *mpi_request;
1363 Mpi2DiagBufferPostReply_t *mpi_reply;
1365 unsigned long timeleft;
1370 dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
1373 if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) {
1374 printk(MPT2SAS_ERR_FMT "%s: ctl_cmd in use\n",
1375 ioc->name, __func__);
1380 buffer_type = diag_register->buffer_type;
1381 if (!_ctl_diag_capability(ioc, buffer_type)) {
1382 printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for "
1383 "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
1387 if (ioc->diag_buffer_status[buffer_type] &
1388 MPT2_DIAG_BUFFER_IS_REGISTERED) {
1389 printk(MPT2SAS_ERR_FMT "%s: already has a registered "
1390 "buffer for buffer_type(0x%02x)\n", ioc->name, __func__,
1395 if (diag_register->requested_buffer_size % 4) {
1396 printk(MPT2SAS_ERR_FMT "%s: the requested_buffer_size "
1397 "is not 4 byte aligned\n", ioc->name, __func__);
1401 smid = mpt2sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1403 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
1404 ioc->name, __func__);
1410 ioc->ctl_cmds.status = MPT2_CMD_PENDING;
1411 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1412 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
1413 ioc->ctl_cmds.smid = smid;
1415 request_data = ioc->diag_buffer[buffer_type];
1416 request_data_sz = diag_register->requested_buffer_size;
1417 ioc->unique_id[buffer_type] = diag_register->unique_id;
1418 ioc->diag_buffer_status[buffer_type] = 0;
1419 memcpy(ioc->product_specific[buffer_type],
1420 diag_register->product_specific, MPT2_PRODUCT_SPECIFIC_DWORDS);
1421 ioc->diagnostic_flags[buffer_type] = diag_register->diagnostic_flags;
1424 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1425 if (request_data_sz != ioc->diag_buffer_sz[buffer_type]) {
1426 pci_free_consistent(ioc->pdev,
1427 ioc->diag_buffer_sz[buffer_type],
1428 request_data, request_data_dma);
1429 request_data = NULL;
1433 if (request_data == NULL) {
1434 ioc->diag_buffer_sz[buffer_type] = 0;
1435 ioc->diag_buffer_dma[buffer_type] = 0;
1436 request_data = pci_alloc_consistent(
1437 ioc->pdev, request_data_sz, &request_data_dma);
1438 if (request_data == NULL) {
1439 printk(MPT2SAS_ERR_FMT "%s: failed allocating memory"
1440 " for diag buffers, requested size(%d)\n",
1441 ioc->name, __func__, request_data_sz);
1442 mpt2sas_base_free_smid(ioc, smid);
1445 ioc->diag_buffer[buffer_type] = request_data;
1446 ioc->diag_buffer_sz[buffer_type] = request_data_sz;
1447 ioc->diag_buffer_dma[buffer_type] = request_data_dma;
1450 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
1451 mpi_request->BufferType = diag_register->buffer_type;
1452 mpi_request->Flags = cpu_to_le32(diag_register->diagnostic_flags);
1453 mpi_request->BufferAddress = cpu_to_le64(request_data_dma);
1454 mpi_request->BufferLength = cpu_to_le32(request_data_sz);
1455 mpi_request->VF_ID = 0; /* TODO */
1456 mpi_request->VP_ID = 0;
1458 dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: diag_buffer(0x%p), "
1459 "dma(0x%llx), sz(%d)\n", ioc->name, __func__, request_data,
1460 (unsigned long long)request_data_dma,
1461 le32_to_cpu(mpi_request->BufferLength)));
1463 for (i = 0; i < MPT2_PRODUCT_SPECIFIC_DWORDS; i++)
1464 mpi_request->ProductSpecific[i] =
1465 cpu_to_le32(ioc->product_specific[buffer_type][i]);
1467 mpt2sas_base_put_smid_default(ioc, smid);
1468 init_completion(&ioc->ctl_cmds.done);
1469 timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
1470 MPT2_IOCTL_DEFAULT_TIMEOUT*HZ);
1472 if (!(ioc->ctl_cmds.status & MPT2_CMD_COMPLETE)) {
1473 printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name,
1475 _debug_dump_mf(mpi_request,
1476 sizeof(Mpi2DiagBufferPostRequest_t)/4);
1477 if (!(ioc->ctl_cmds.status & MPT2_CMD_RESET))
1479 goto issue_host_reset;
1482 /* process the completed Reply Message Frame */
1483 if ((ioc->ctl_cmds.status & MPT2_CMD_REPLY_VALID) == 0) {
1484 printk(MPT2SAS_ERR_FMT "%s: no reply message\n",
1485 ioc->name, __func__);
1490 mpi_reply = ioc->ctl_cmds.reply;
1491 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1493 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1494 ioc->diag_buffer_status[buffer_type] |=
1495 MPT2_DIAG_BUFFER_IS_REGISTERED;
1496 dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: success\n",
1497 ioc->name, __func__));
1499 printk(MPT2SAS_INFO_FMT "%s: ioc_status(0x%04x) "
1500 "log_info(0x%08x)\n", ioc->name, __func__,
1501 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
1507 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1512 if (rc && request_data)
1513 pci_free_consistent(ioc->pdev, request_data_sz,
1514 request_data, request_data_dma);
1516 ioc->ctl_cmds.status = MPT2_CMD_NOT_USED;
1521 * mpt2sas_enable_diag_buffer - enabling diag_buffers support driver load time
1522 * @ioc: per adapter object
1523 * @bits_to_register: bitwise field where trace is bit 0, and snapshot is bit 1
1525 * This is called when command line option diag_buffer_enable is enabled
1526 * at driver load time.
1529 mpt2sas_enable_diag_buffer(struct MPT2SAS_ADAPTER *ioc, u8 bits_to_register)
1531 struct mpt2_diag_register diag_register;
1533 memset(&diag_register, 0, sizeof(struct mpt2_diag_register));
1535 if (bits_to_register & 1) {
1536 printk(MPT2SAS_INFO_FMT "registering trace buffer support\n",
1538 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
1539 /* register for 1MB buffers */
1540 diag_register.requested_buffer_size = (1024 * 1024);
1541 diag_register.unique_id = 0x7075900;
1542 _ctl_diag_register_2(ioc, &diag_register);
1545 if (bits_to_register & 2) {
1546 printk(MPT2SAS_INFO_FMT "registering snapshot buffer support\n",
1548 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_SNAPSHOT;
1549 /* register for 2MB buffers */
1550 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1551 diag_register.unique_id = 0x7075901;
1552 _ctl_diag_register_2(ioc, &diag_register);
1555 if (bits_to_register & 4) {
1556 printk(MPT2SAS_INFO_FMT "registering extended buffer support\n",
1558 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_EXTENDED;
1559 /* register for 2MB buffers */
1560 diag_register.requested_buffer_size = 2 * (1024 * 1024);
1561 diag_register.unique_id = 0x7075901;
1562 _ctl_diag_register_2(ioc, &diag_register);
1567 * _ctl_diag_register - application register with driver
1568 * @arg - user space buffer containing ioctl content
1569 * @state - NON_BLOCKING or BLOCKING
1571 * This will allow the driver to setup any required buffers that will be
1572 * needed by firmware to communicate with the driver.
1575 _ctl_diag_register(void __user *arg, enum block_state state)
1577 struct mpt2_diag_register karg;
1578 struct MPT2SAS_ADAPTER *ioc;
1581 if (copy_from_user(&karg, arg, sizeof(karg))) {
1582 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1583 __FILE__, __LINE__, __func__);
1586 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
1589 if (state == NON_BLOCKING && !mutex_trylock(&ioc->ctl_cmds.mutex))
1591 else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex))
1592 return -ERESTARTSYS;
1593 rc = _ctl_diag_register_2(ioc, &karg);
1594 mutex_unlock(&ioc->ctl_cmds.mutex);
1599 * _ctl_diag_unregister - application unregister with driver
1600 * @arg - user space buffer containing ioctl content
1602 * This will allow the driver to cleanup any memory allocated for diag
1603 * messages and to free up any resources.
1606 _ctl_diag_unregister(void __user *arg)
1608 struct mpt2_diag_unregister karg;
1609 struct MPT2SAS_ADAPTER *ioc;
1611 dma_addr_t request_data_dma;
1612 u32 request_data_sz;
1615 if (copy_from_user(&karg, arg, sizeof(karg))) {
1616 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1617 __FILE__, __LINE__, __func__);
1620 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
1623 dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
1626 buffer_type = karg.unique_id & 0x000000ff;
1627 if (!_ctl_diag_capability(ioc, buffer_type)) {
1628 printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for "
1629 "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
1633 if ((ioc->diag_buffer_status[buffer_type] &
1634 MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) {
1635 printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) is not "
1636 "registered\n", ioc->name, __func__, buffer_type);
1639 if ((ioc->diag_buffer_status[buffer_type] &
1640 MPT2_DIAG_BUFFER_IS_RELEASED) == 0) {
1641 printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) has not been "
1642 "released\n", ioc->name, __func__, buffer_type);
1646 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1647 printk(MPT2SAS_ERR_FMT "%s: unique_id(0x%08x) is not "
1648 "registered\n", ioc->name, __func__, karg.unique_id);
1652 request_data = ioc->diag_buffer[buffer_type];
1653 if (!request_data) {
1654 printk(MPT2SAS_ERR_FMT "%s: doesn't have memory allocated for "
1655 "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
1659 request_data_sz = ioc->diag_buffer_sz[buffer_type];
1660 request_data_dma = ioc->diag_buffer_dma[buffer_type];
1661 pci_free_consistent(ioc->pdev, request_data_sz,
1662 request_data, request_data_dma);
1663 ioc->diag_buffer[buffer_type] = NULL;
1664 ioc->diag_buffer_status[buffer_type] = 0;
1669 * _ctl_diag_query - query relevant info associated with diag buffers
1670 * @arg - user space buffer containing ioctl content
1672 * The application will send only buffer_type and unique_id. Driver will
1673 * inspect unique_id first, if valid, fill in all the info. If unique_id is
1674 * 0x00, the driver will return info specified by Buffer Type.
1677 _ctl_diag_query(void __user *arg)
1679 struct mpt2_diag_query karg;
1680 struct MPT2SAS_ADAPTER *ioc;
1685 if (copy_from_user(&karg, arg, sizeof(karg))) {
1686 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1687 __FILE__, __LINE__, __func__);
1690 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
1693 dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
1696 karg.application_flags = 0;
1697 buffer_type = karg.buffer_type;
1699 if (!_ctl_diag_capability(ioc, buffer_type)) {
1700 printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for "
1701 "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
1705 if ((ioc->diag_buffer_status[buffer_type] &
1706 MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) {
1707 printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) is not "
1708 "registered\n", ioc->name, __func__, buffer_type);
1712 if (karg.unique_id & 0xffffff00) {
1713 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1714 printk(MPT2SAS_ERR_FMT "%s: unique_id(0x%08x) is not "
1715 "registered\n", ioc->name, __func__,
1721 request_data = ioc->diag_buffer[buffer_type];
1722 if (!request_data) {
1723 printk(MPT2SAS_ERR_FMT "%s: doesn't have buffer for "
1724 "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
1728 if (ioc->diag_buffer_status[buffer_type] & MPT2_DIAG_BUFFER_IS_RELEASED)
1729 karg.application_flags = (MPT2_APP_FLAGS_APP_OWNED |
1730 MPT2_APP_FLAGS_BUFFER_VALID);
1732 karg.application_flags = (MPT2_APP_FLAGS_APP_OWNED |
1733 MPT2_APP_FLAGS_BUFFER_VALID |
1734 MPT2_APP_FLAGS_FW_BUFFER_ACCESS);
1736 for (i = 0; i < MPT2_PRODUCT_SPECIFIC_DWORDS; i++)
1737 karg.product_specific[i] =
1738 ioc->product_specific[buffer_type][i];
1740 karg.total_buffer_size = ioc->diag_buffer_sz[buffer_type];
1741 karg.driver_added_buffer_size = 0;
1742 karg.unique_id = ioc->unique_id[buffer_type];
1743 karg.diagnostic_flags = ioc->diagnostic_flags[buffer_type];
1745 if (copy_to_user(arg, &karg, sizeof(struct mpt2_diag_query))) {
1746 printk(MPT2SAS_ERR_FMT "%s: unable to write mpt2_diag_query "
1747 "data @ %p\n", ioc->name, __func__, arg);
1754 * _ctl_send_release - Diag Release Message
1755 * @ioc: per adapter object
1756 * @buffer_type - specifies either TRACE, SNAPSHOT, or EXTENDED
1757 * @issue_reset - specifies whether host reset is required.
1761 _ctl_send_release(struct MPT2SAS_ADAPTER *ioc, u8 buffer_type, u8 *issue_reset)
1763 Mpi2DiagReleaseRequest_t *mpi_request;
1764 Mpi2DiagReleaseReply_t *mpi_reply;
1769 unsigned long timeleft;
1771 dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
1777 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
1778 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1779 dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
1780 "skipping due to FAULT state\n", ioc->name,
1786 if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) {
1787 printk(MPT2SAS_ERR_FMT "%s: ctl_cmd in use\n",
1788 ioc->name, __func__);
1793 smid = mpt2sas_base_get_smid(ioc, ioc->ctl_cb_idx);
1795 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
1796 ioc->name, __func__);
1801 ioc->ctl_cmds.status = MPT2_CMD_PENDING;
1802 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
1803 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
1804 ioc->ctl_cmds.smid = smid;
1806 mpi_request->Function = MPI2_FUNCTION_DIAG_RELEASE;
1807 mpi_request->BufferType = buffer_type;
1808 mpi_request->VF_ID = 0; /* TODO */
1809 mpi_request->VP_ID = 0;
1811 mpt2sas_base_put_smid_default(ioc, smid);
1812 init_completion(&ioc->ctl_cmds.done);
1813 timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
1814 MPT2_IOCTL_DEFAULT_TIMEOUT*HZ);
1816 if (!(ioc->ctl_cmds.status & MPT2_CMD_COMPLETE)) {
1817 printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name,
1819 _debug_dump_mf(mpi_request,
1820 sizeof(Mpi2DiagReleaseRequest_t)/4);
1821 if (!(ioc->ctl_cmds.status & MPT2_CMD_RESET))
1827 /* process the completed Reply Message Frame */
1828 if ((ioc->ctl_cmds.status & MPT2_CMD_REPLY_VALID) == 0) {
1829 printk(MPT2SAS_ERR_FMT "%s: no reply message\n",
1830 ioc->name, __func__);
1835 mpi_reply = ioc->ctl_cmds.reply;
1836 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
1838 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
1839 ioc->diag_buffer_status[buffer_type] |=
1840 MPT2_DIAG_BUFFER_IS_RELEASED;
1841 dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: success\n",
1842 ioc->name, __func__));
1844 printk(MPT2SAS_INFO_FMT "%s: ioc_status(0x%04x) "
1845 "log_info(0x%08x)\n", ioc->name, __func__,
1846 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
1851 ioc->ctl_cmds.status = MPT2_CMD_NOT_USED;
1856 * _ctl_diag_release - request to send Diag Release Message to firmware
1857 * @arg - user space buffer containing ioctl content
1858 * @state - NON_BLOCKING or BLOCKING
1860 * This allows ownership of the specified buffer to returned to the driver,
1861 * allowing an application to read the buffer without fear that firmware is
1862 * overwritting information in the buffer.
1865 _ctl_diag_release(void __user *arg, enum block_state state)
1867 struct mpt2_diag_release karg;
1868 struct MPT2SAS_ADAPTER *ioc;
1874 if (copy_from_user(&karg, arg, sizeof(karg))) {
1875 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1876 __FILE__, __LINE__, __func__);
1879 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
1882 dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
1885 buffer_type = karg.unique_id & 0x000000ff;
1886 if (!_ctl_diag_capability(ioc, buffer_type)) {
1887 printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for "
1888 "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
1892 if ((ioc->diag_buffer_status[buffer_type] &
1893 MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) {
1894 printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) is not "
1895 "registered\n", ioc->name, __func__, buffer_type);
1899 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1900 printk(MPT2SAS_ERR_FMT "%s: unique_id(0x%08x) is not "
1901 "registered\n", ioc->name, __func__, karg.unique_id);
1905 if (ioc->diag_buffer_status[buffer_type] &
1906 MPT2_DIAG_BUFFER_IS_RELEASED) {
1907 printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) "
1908 "is already released\n", ioc->name, __func__,
1913 request_data = ioc->diag_buffer[buffer_type];
1915 if (!request_data) {
1916 printk(MPT2SAS_ERR_FMT "%s: doesn't have memory allocated for "
1917 "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
1921 /* buffers were released by due to host reset */
1922 if ((ioc->diag_buffer_status[buffer_type] &
1923 MPT2_DIAG_BUFFER_IS_DIAG_RESET)) {
1924 ioc->diag_buffer_status[buffer_type] |=
1925 MPT2_DIAG_BUFFER_IS_RELEASED;
1926 ioc->diag_buffer_status[buffer_type] &=
1927 ~MPT2_DIAG_BUFFER_IS_DIAG_RESET;
1928 printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) "
1929 "was released due to host reset\n", ioc->name, __func__,
1934 if (state == NON_BLOCKING && !mutex_trylock(&ioc->ctl_cmds.mutex))
1936 else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex))
1937 return -ERESTARTSYS;
1939 rc = _ctl_send_release(ioc, buffer_type, &issue_reset);
1942 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1945 mutex_unlock(&ioc->ctl_cmds.mutex);
1950 * _ctl_diag_read_buffer - request for copy of the diag buffer
1951 * @arg - user space buffer containing ioctl content
1952 * @state - NON_BLOCKING or BLOCKING
1955 _ctl_diag_read_buffer(void __user *arg, enum block_state state)
1957 struct mpt2_diag_read_buffer karg;
1958 struct mpt2_diag_read_buffer __user *uarg = arg;
1959 struct MPT2SAS_ADAPTER *ioc;
1960 void *request_data, *diag_data;
1961 Mpi2DiagBufferPostRequest_t *mpi_request;
1962 Mpi2DiagBufferPostReply_t *mpi_reply;
1965 unsigned long timeleft;
1970 if (copy_from_user(&karg, arg, sizeof(karg))) {
1971 printk(KERN_ERR "failure at %s:%d/%s()!\n",
1972 __FILE__, __LINE__, __func__);
1975 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
1978 dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
1981 buffer_type = karg.unique_id & 0x000000ff;
1982 if (!_ctl_diag_capability(ioc, buffer_type)) {
1983 printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for "
1984 "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
1988 if (karg.unique_id != ioc->unique_id[buffer_type]) {
1989 printk(MPT2SAS_ERR_FMT "%s: unique_id(0x%08x) is not "
1990 "registered\n", ioc->name, __func__, karg.unique_id);
1994 request_data = ioc->diag_buffer[buffer_type];
1995 if (!request_data) {
1996 printk(MPT2SAS_ERR_FMT "%s: doesn't have buffer for "
1997 "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
2001 if ((karg.starting_offset % 4) || (karg.bytes_to_read % 4)) {
2002 printk(MPT2SAS_ERR_FMT "%s: either the starting_offset "
2003 "or bytes_to_read are not 4 byte aligned\n", ioc->name,
2008 diag_data = (void *)(request_data + karg.starting_offset);
2009 dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: diag_buffer(%p), "
2010 "offset(%d), sz(%d)\n", ioc->name, __func__,
2011 diag_data, karg.starting_offset, karg.bytes_to_read));
2013 if (copy_to_user((void __user *)uarg->diagnostic_data,
2014 diag_data, karg.bytes_to_read)) {
2015 printk(MPT2SAS_ERR_FMT "%s: Unable to write "
2016 "mpt_diag_read_buffer_t data @ %p\n", ioc->name,
2017 __func__, diag_data);
2021 if ((karg.flags & MPT2_FLAGS_REREGISTER) == 0)
2024 dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: Reregister "
2025 "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type));
2026 if ((ioc->diag_buffer_status[buffer_type] &
2027 MPT2_DIAG_BUFFER_IS_RELEASED) == 0) {
2028 dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
2029 "buffer_type(0x%02x) is still registered\n", ioc->name,
2030 __func__, buffer_type));
2033 /* Get a free request frame and save the message context.
2035 if (state == NON_BLOCKING && !mutex_trylock(&ioc->ctl_cmds.mutex))
2037 else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex))
2038 return -ERESTARTSYS;
2040 if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) {
2041 printk(MPT2SAS_ERR_FMT "%s: ctl_cmd in use\n",
2042 ioc->name, __func__);
2047 smid = mpt2sas_base_get_smid(ioc, ioc->ctl_cb_idx);
2049 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
2050 ioc->name, __func__);
2056 ioc->ctl_cmds.status = MPT2_CMD_PENDING;
2057 memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
2058 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
2059 ioc->ctl_cmds.smid = smid;
2061 mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
2062 mpi_request->BufferType = buffer_type;
2063 mpi_request->BufferLength =
2064 cpu_to_le32(ioc->diag_buffer_sz[buffer_type]);
2065 mpi_request->BufferAddress =
2066 cpu_to_le64(ioc->diag_buffer_dma[buffer_type]);
2067 for (i = 0; i < MPT2_PRODUCT_SPECIFIC_DWORDS; i++)
2068 mpi_request->ProductSpecific[i] =
2069 cpu_to_le32(ioc->product_specific[buffer_type][i]);
2070 mpi_request->VF_ID = 0; /* TODO */
2071 mpi_request->VP_ID = 0;
2073 mpt2sas_base_put_smid_default(ioc, smid);
2074 init_completion(&ioc->ctl_cmds.done);
2075 timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
2076 MPT2_IOCTL_DEFAULT_TIMEOUT*HZ);
2078 if (!(ioc->ctl_cmds.status & MPT2_CMD_COMPLETE)) {
2079 printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name,
2081 _debug_dump_mf(mpi_request,
2082 sizeof(Mpi2DiagBufferPostRequest_t)/4);
2083 if (!(ioc->ctl_cmds.status & MPT2_CMD_RESET))
2085 goto issue_host_reset;
2088 /* process the completed Reply Message Frame */
2089 if ((ioc->ctl_cmds.status & MPT2_CMD_REPLY_VALID) == 0) {
2090 printk(MPT2SAS_ERR_FMT "%s: no reply message\n",
2091 ioc->name, __func__);
2096 mpi_reply = ioc->ctl_cmds.reply;
2097 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
2099 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
2100 ioc->diag_buffer_status[buffer_type] |=
2101 MPT2_DIAG_BUFFER_IS_REGISTERED;
2102 dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: success\n",
2103 ioc->name, __func__));
2105 printk(MPT2SAS_INFO_FMT "%s: ioc_status(0x%04x) "
2106 "log_info(0x%08x)\n", ioc->name, __func__,
2107 ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
2113 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2118 ioc->ctl_cmds.status = MPT2_CMD_NOT_USED;
2119 mutex_unlock(&ioc->ctl_cmds.mutex);
2124 * _ctl_ioctl_main - main ioctl entry point
2125 * @file - (struct file)
2126 * @cmd - ioctl opcode
2130 _ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg)
2132 enum block_state state;
2135 state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING :
2140 if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_iocinfo))
2141 ret = _ctl_getiocinfo(arg);
2145 struct mpt2_ioctl_command karg;
2146 struct mpt2_ioctl_command __user *uarg;
2147 struct MPT2SAS_ADAPTER *ioc;
2149 if (copy_from_user(&karg, arg, sizeof(karg))) {
2150 printk(KERN_ERR "failure at %s:%d/%s()!\n",
2151 __FILE__, __LINE__, __func__);
2155 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 ||
2159 if (ioc->shost_recovery || ioc->pci_error_recovery)
2162 if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_command)) {
2164 ret = _ctl_do_mpt_command(ioc, karg, &uarg->mf, state);
2168 case MPT2EVENTQUERY:
2169 if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_eventquery))
2170 ret = _ctl_eventquery(arg);
2172 case MPT2EVENTENABLE:
2173 if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_eventenable))
2174 ret = _ctl_eventenable(arg);
2176 case MPT2EVENTREPORT:
2177 ret = _ctl_eventreport(arg);
2180 if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_diag_reset))
2181 ret = _ctl_do_reset(arg);
2183 case MPT2BTDHMAPPING:
2184 if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_btdh_mapping))
2185 ret = _ctl_btdh_mapping(arg);
2187 case MPT2DIAGREGISTER:
2188 if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_register))
2189 ret = _ctl_diag_register(arg, state);
2191 case MPT2DIAGUNREGISTER:
2192 if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_unregister))
2193 ret = _ctl_diag_unregister(arg);
2196 if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_query))
2197 ret = _ctl_diag_query(arg);
2199 case MPT2DIAGRELEASE:
2200 if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_release))
2201 ret = _ctl_diag_release(arg, state);
2203 case MPT2DIAGREADBUFFER:
2204 if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_read_buffer))
2205 ret = _ctl_diag_read_buffer(arg, state);
2209 struct mpt2_ioctl_command karg;
2210 struct MPT2SAS_ADAPTER *ioc;
2212 if (copy_from_user(&karg, arg, sizeof(karg))) {
2213 printk(KERN_ERR "failure at %s:%d/%s()!\n",
2214 __FILE__, __LINE__, __func__);
2218 if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 ||
2222 dctlprintk(ioc, printk(MPT2SAS_INFO_FMT
2223 "unsupported ioctl opcode(0x%08x)\n", ioc->name, cmd));
2231 * _ctl_ioctl - main ioctl entry point (unlocked)
2232 * @file - (struct file)
2233 * @cmd - ioctl opcode
2237 _ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2242 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg);
2247 #ifdef CONFIG_COMPAT
2249 * _ctl_compat_mpt_command - convert 32bit pointers to 64bit.
2250 * @file - (struct file)
2251 * @cmd - ioctl opcode
2252 * @arg - (struct mpt2_ioctl_command32)
2254 * MPT2COMMAND32 - Handle 32bit applications running on 64bit os.
2257 _ctl_compat_mpt_command(struct file *file, unsigned cmd, unsigned long arg)
2259 struct mpt2_ioctl_command32 karg32;
2260 struct mpt2_ioctl_command32 __user *uarg;
2261 struct mpt2_ioctl_command karg;
2262 struct MPT2SAS_ADAPTER *ioc;
2263 enum block_state state;
2265 if (_IOC_SIZE(cmd) != sizeof(struct mpt2_ioctl_command32))
2268 uarg = (struct mpt2_ioctl_command32 __user *) arg;
2270 if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32))) {
2271 printk(KERN_ERR "failure at %s:%d/%s()!\n",
2272 __FILE__, __LINE__, __func__);
2275 if (_ctl_verify_adapter(karg32.hdr.ioc_number, &ioc) == -1 || !ioc)
2278 if (ioc->shost_recovery || ioc->pci_error_recovery)
2281 memset(&karg, 0, sizeof(struct mpt2_ioctl_command));
2282 karg.hdr.ioc_number = karg32.hdr.ioc_number;
2283 karg.hdr.port_number = karg32.hdr.port_number;
2284 karg.hdr.max_data_size = karg32.hdr.max_data_size;
2285 karg.timeout = karg32.timeout;
2286 karg.max_reply_bytes = karg32.max_reply_bytes;
2287 karg.data_in_size = karg32.data_in_size;
2288 karg.data_out_size = karg32.data_out_size;
2289 karg.max_sense_bytes = karg32.max_sense_bytes;
2290 karg.data_sge_offset = karg32.data_sge_offset;
2291 karg.reply_frame_buf_ptr = compat_ptr(karg32.reply_frame_buf_ptr);
2292 karg.data_in_buf_ptr = compat_ptr(karg32.data_in_buf_ptr);
2293 karg.data_out_buf_ptr = compat_ptr(karg32.data_out_buf_ptr);
2294 karg.sense_data_ptr = compat_ptr(karg32.sense_data_ptr);
2295 state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING;
2296 return _ctl_do_mpt_command(ioc, karg, &uarg->mf, state);
2300 * _ctl_ioctl_compat - main ioctl entry point (compat)
2305 * This routine handles 32 bit applications in 64bit os.
2308 _ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
2313 if (cmd == MPT2COMMAND32)
2314 ret = _ctl_compat_mpt_command(file, cmd, arg);
2316 ret = _ctl_ioctl_main(file, cmd, (void __user *)arg);
2322 /* scsi host attributes */
2325 * _ctl_version_fw_show - firmware version
2326 * @cdev - pointer to embedded class device
2327 * @buf - the buffer returned
2329 * A sysfs 'read-only' shost attribute.
2332 _ctl_version_fw_show(struct device *cdev, struct device_attribute *attr,
2335 struct Scsi_Host *shost = class_to_shost(cdev);
2336 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2338 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2339 (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
2340 (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
2341 (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
2342 ioc->facts.FWVersion.Word & 0x000000FF);
2344 static DEVICE_ATTR(version_fw, S_IRUGO, _ctl_version_fw_show, NULL);
2347 * _ctl_version_bios_show - bios version
2348 * @cdev - pointer to embedded class device
2349 * @buf - the buffer returned
2351 * A sysfs 'read-only' shost attribute.
2354 _ctl_version_bios_show(struct device *cdev, struct device_attribute *attr,
2357 struct Scsi_Host *shost = class_to_shost(cdev);
2358 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2360 u32 version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
2362 return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
2363 (version & 0xFF000000) >> 24,
2364 (version & 0x00FF0000) >> 16,
2365 (version & 0x0000FF00) >> 8,
2366 version & 0x000000FF);
2368 static DEVICE_ATTR(version_bios, S_IRUGO, _ctl_version_bios_show, NULL);
2371 * _ctl_version_mpi_show - MPI (message passing interface) version
2372 * @cdev - pointer to embedded class device
2373 * @buf - the buffer returned
2375 * A sysfs 'read-only' shost attribute.
2378 _ctl_version_mpi_show(struct device *cdev, struct device_attribute *attr,
2381 struct Scsi_Host *shost = class_to_shost(cdev);
2382 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2384 return snprintf(buf, PAGE_SIZE, "%03x.%02x\n",
2385 ioc->facts.MsgVersion, ioc->facts.HeaderVersion >> 8);
2387 static DEVICE_ATTR(version_mpi, S_IRUGO, _ctl_version_mpi_show, NULL);
2390 * _ctl_version_product_show - product name
2391 * @cdev - pointer to embedded class device
2392 * @buf - the buffer returned
2394 * A sysfs 'read-only' shost attribute.
2397 _ctl_version_product_show(struct device *cdev, struct device_attribute *attr,
2400 struct Scsi_Host *shost = class_to_shost(cdev);
2401 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2403 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.ChipName);
2405 static DEVICE_ATTR(version_product, S_IRUGO,
2406 _ctl_version_product_show, NULL);
2409 * _ctl_version_nvdata_persistent_show - ndvata persistent version
2410 * @cdev - pointer to embedded class device
2411 * @buf - the buffer returned
2413 * A sysfs 'read-only' shost attribute.
2416 _ctl_version_nvdata_persistent_show(struct device *cdev,
2417 struct device_attribute *attr, char *buf)
2419 struct Scsi_Host *shost = class_to_shost(cdev);
2420 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2422 return snprintf(buf, PAGE_SIZE, "%08xh\n",
2423 le32_to_cpu(ioc->iounit_pg0.NvdataVersionPersistent.Word));
2425 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
2426 _ctl_version_nvdata_persistent_show, NULL);
2429 * _ctl_version_nvdata_default_show - nvdata default version
2430 * @cdev - pointer to embedded class device
2431 * @buf - the buffer returned
2433 * A sysfs 'read-only' shost attribute.
2436 _ctl_version_nvdata_default_show(struct device *cdev,
2437 struct device_attribute *attr, char *buf)
2439 struct Scsi_Host *shost = class_to_shost(cdev);
2440 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2442 return snprintf(buf, PAGE_SIZE, "%08xh\n",
2443 le32_to_cpu(ioc->iounit_pg0.NvdataVersionDefault.Word));
2445 static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
2446 _ctl_version_nvdata_default_show, NULL);
2449 * _ctl_board_name_show - board name
2450 * @cdev - pointer to embedded class device
2451 * @buf - the buffer returned
2453 * A sysfs 'read-only' shost attribute.
2456 _ctl_board_name_show(struct device *cdev, struct device_attribute *attr,
2459 struct Scsi_Host *shost = class_to_shost(cdev);
2460 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2462 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardName);
2464 static DEVICE_ATTR(board_name, S_IRUGO, _ctl_board_name_show, NULL);
2467 * _ctl_board_assembly_show - board assembly name
2468 * @cdev - pointer to embedded class device
2469 * @buf - the buffer returned
2471 * A sysfs 'read-only' shost attribute.
2474 _ctl_board_assembly_show(struct device *cdev, struct device_attribute *attr,
2477 struct Scsi_Host *shost = class_to_shost(cdev);
2478 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2480 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardAssembly);
2482 static DEVICE_ATTR(board_assembly, S_IRUGO,
2483 _ctl_board_assembly_show, NULL);
2486 * _ctl_board_tracer_show - board tracer number
2487 * @cdev - pointer to embedded class device
2488 * @buf - the buffer returned
2490 * A sysfs 'read-only' shost attribute.
2493 _ctl_board_tracer_show(struct device *cdev, struct device_attribute *attr,
2496 struct Scsi_Host *shost = class_to_shost(cdev);
2497 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2499 return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardTracerNumber);
2501 static DEVICE_ATTR(board_tracer, S_IRUGO,
2502 _ctl_board_tracer_show, NULL);
2505 * _ctl_io_delay_show - io missing delay
2506 * @cdev - pointer to embedded class device
2507 * @buf - the buffer returned
2509 * This is for firmware implemention for deboucing device
2512 * A sysfs 'read-only' shost attribute.
2515 _ctl_io_delay_show(struct device *cdev, struct device_attribute *attr,
2518 struct Scsi_Host *shost = class_to_shost(cdev);
2519 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2521 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
2523 static DEVICE_ATTR(io_delay, S_IRUGO,
2524 _ctl_io_delay_show, NULL);
2527 * _ctl_device_delay_show - device missing delay
2528 * @cdev - pointer to embedded class device
2529 * @buf - the buffer returned
2531 * This is for firmware implemention for deboucing device
2534 * A sysfs 'read-only' shost attribute.
2537 _ctl_device_delay_show(struct device *cdev, struct device_attribute *attr,
2540 struct Scsi_Host *shost = class_to_shost(cdev);
2541 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2543 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
2545 static DEVICE_ATTR(device_delay, S_IRUGO,
2546 _ctl_device_delay_show, NULL);
2549 * _ctl_fw_queue_depth_show - global credits
2550 * @cdev - pointer to embedded class device
2551 * @buf - the buffer returned
2553 * This is firmware queue depth limit
2555 * A sysfs 'read-only' shost attribute.
2558 _ctl_fw_queue_depth_show(struct device *cdev, struct device_attribute *attr,
2561 struct Scsi_Host *shost = class_to_shost(cdev);
2562 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2564 return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->facts.RequestCredit);
2566 static DEVICE_ATTR(fw_queue_depth, S_IRUGO,
2567 _ctl_fw_queue_depth_show, NULL);
2570 * _ctl_sas_address_show - sas address
2571 * @cdev - pointer to embedded class device
2572 * @buf - the buffer returned
2574 * This is the controller sas address
2576 * A sysfs 'read-only' shost attribute.
2579 _ctl_host_sas_address_show(struct device *cdev, struct device_attribute *attr,
2582 struct Scsi_Host *shost = class_to_shost(cdev);
2583 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2585 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
2586 (unsigned long long)ioc->sas_hba.sas_address);
2588 static DEVICE_ATTR(host_sas_address, S_IRUGO,
2589 _ctl_host_sas_address_show, NULL);
2592 * _ctl_logging_level_show - logging level
2593 * @cdev - pointer to embedded class device
2594 * @buf - the buffer returned
2596 * A sysfs 'read/write' shost attribute.
2599 _ctl_logging_level_show(struct device *cdev, struct device_attribute *attr,
2602 struct Scsi_Host *shost = class_to_shost(cdev);
2603 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2605 return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->logging_level);
2608 _ctl_logging_level_store(struct device *cdev, struct device_attribute *attr,
2609 const char *buf, size_t count)
2611 struct Scsi_Host *shost = class_to_shost(cdev);
2612 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2615 if (sscanf(buf, "%x", &val) != 1)
2618 ioc->logging_level = val;
2619 printk(MPT2SAS_INFO_FMT "logging_level=%08xh\n", ioc->name,
2620 ioc->logging_level);
2623 static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR,
2624 _ctl_logging_level_show, _ctl_logging_level_store);
2626 /* device attributes */
2628 * _ctl_fwfault_debug_show - show/store fwfault_debug
2629 * @cdev - pointer to embedded class device
2630 * @buf - the buffer returned
2632 * mpt2sas_fwfault_debug is command line option
2633 * A sysfs 'read/write' shost attribute.
2636 _ctl_fwfault_debug_show(struct device *cdev,
2637 struct device_attribute *attr, char *buf)
2639 struct Scsi_Host *shost = class_to_shost(cdev);
2640 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2642 return snprintf(buf, PAGE_SIZE, "%d\n", ioc->fwfault_debug);
2645 _ctl_fwfault_debug_store(struct device *cdev,
2646 struct device_attribute *attr, const char *buf, size_t count)
2648 struct Scsi_Host *shost = class_to_shost(cdev);
2649 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2652 if (sscanf(buf, "%d", &val) != 1)
2655 ioc->fwfault_debug = val;
2656 printk(MPT2SAS_INFO_FMT "fwfault_debug=%d\n", ioc->name,
2657 ioc->fwfault_debug);
2660 static DEVICE_ATTR(fwfault_debug, S_IRUGO | S_IWUSR,
2661 _ctl_fwfault_debug_show, _ctl_fwfault_debug_store);
2665 * _ctl_ioc_reset_count_show - ioc reset count
2666 * @cdev - pointer to embedded class device
2667 * @buf - the buffer returned
2669 * This is firmware queue depth limit
2671 * A sysfs 'read-only' shost attribute.
2674 _ctl_ioc_reset_count_show(struct device *cdev, struct device_attribute *attr,
2677 struct Scsi_Host *shost = class_to_shost(cdev);
2678 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2680 return snprintf(buf, PAGE_SIZE, "%08d\n", ioc->ioc_reset_count);
2682 static DEVICE_ATTR(ioc_reset_count, S_IRUGO,
2683 _ctl_ioc_reset_count_show, NULL);
2685 struct DIAG_BUFFER_START {
2695 * _ctl_host_trace_buffer_size_show - host buffer size (trace only)
2696 * @cdev - pointer to embedded class device
2697 * @buf - the buffer returned
2699 * A sysfs 'read-only' shost attribute.
2702 _ctl_host_trace_buffer_size_show(struct device *cdev,
2703 struct device_attribute *attr, char *buf)
2705 struct Scsi_Host *shost = class_to_shost(cdev);
2706 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2708 struct DIAG_BUFFER_START *request_data;
2710 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
2711 printk(MPT2SAS_ERR_FMT "%s: host_trace_buffer is not "
2712 "registered\n", ioc->name, __func__);
2716 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2717 MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) {
2718 printk(MPT2SAS_ERR_FMT "%s: host_trace_buffer is not "
2719 "registered\n", ioc->name, __func__);
2723 request_data = (struct DIAG_BUFFER_START *)
2724 ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE];
2725 if ((le32_to_cpu(request_data->DiagVersion) == 0x00000000 ||
2726 le32_to_cpu(request_data->DiagVersion) == 0x01000000) &&
2727 le32_to_cpu(request_data->Reserved3) == 0x4742444c)
2728 size = le32_to_cpu(request_data->Size);
2730 ioc->ring_buffer_sz = size;
2731 return snprintf(buf, PAGE_SIZE, "%d\n", size);
2733 static DEVICE_ATTR(host_trace_buffer_size, S_IRUGO,
2734 _ctl_host_trace_buffer_size_show, NULL);
2737 * _ctl_host_trace_buffer_show - firmware ring buffer (trace only)
2738 * @cdev - pointer to embedded class device
2739 * @buf - the buffer returned
2741 * A sysfs 'read/write' shost attribute.
2743 * You will only be able to read 4k bytes of ring buffer at a time.
2744 * In order to read beyond 4k bytes, you will have to write out the
2745 * offset to the same attribute, it will move the pointer.
2748 _ctl_host_trace_buffer_show(struct device *cdev, struct device_attribute *attr,
2751 struct Scsi_Host *shost = class_to_shost(cdev);
2752 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2756 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
2757 printk(MPT2SAS_ERR_FMT "%s: host_trace_buffer is not "
2758 "registered\n", ioc->name, __func__);
2762 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2763 MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) {
2764 printk(MPT2SAS_ERR_FMT "%s: host_trace_buffer is not "
2765 "registered\n", ioc->name, __func__);
2769 if (ioc->ring_buffer_offset > ioc->ring_buffer_sz)
2772 size = ioc->ring_buffer_sz - ioc->ring_buffer_offset;
2773 size = (size > PAGE_SIZE) ? PAGE_SIZE : size;
2774 request_data = ioc->diag_buffer[0] + ioc->ring_buffer_offset;
2775 memcpy(buf, request_data, size);
2780 _ctl_host_trace_buffer_store(struct device *cdev, struct device_attribute *attr,
2781 const char *buf, size_t count)
2783 struct Scsi_Host *shost = class_to_shost(cdev);
2784 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2787 if (sscanf(buf, "%d", &val) != 1)
2790 ioc->ring_buffer_offset = val;
2793 static DEVICE_ATTR(host_trace_buffer, S_IRUGO | S_IWUSR,
2794 _ctl_host_trace_buffer_show, _ctl_host_trace_buffer_store);
2796 /*****************************************/
2799 * _ctl_host_trace_buffer_enable_show - firmware ring buffer (trace only)
2800 * @cdev - pointer to embedded class device
2801 * @buf - the buffer returned
2803 * A sysfs 'read/write' shost attribute.
2805 * This is a mechnism to post/release host_trace_buffers
2808 _ctl_host_trace_buffer_enable_show(struct device *cdev,
2809 struct device_attribute *attr, char *buf)
2811 struct Scsi_Host *shost = class_to_shost(cdev);
2812 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2814 if ((!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) ||
2815 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2816 MPT2_DIAG_BUFFER_IS_REGISTERED) == 0))
2817 return snprintf(buf, PAGE_SIZE, "off\n");
2818 else if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2819 MPT2_DIAG_BUFFER_IS_RELEASED))
2820 return snprintf(buf, PAGE_SIZE, "release\n");
2822 return snprintf(buf, PAGE_SIZE, "post\n");
2826 _ctl_host_trace_buffer_enable_store(struct device *cdev,
2827 struct device_attribute *attr, const char *buf, size_t count)
2829 struct Scsi_Host *shost = class_to_shost(cdev);
2830 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2832 struct mpt2_diag_register diag_register;
2835 if (sscanf(buf, "%s", str) != 1)
2838 if (!strcmp(str, "post")) {
2839 /* exit out if host buffers are already posted */
2840 if ((ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) &&
2841 (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2842 MPT2_DIAG_BUFFER_IS_REGISTERED) &&
2843 ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2844 MPT2_DIAG_BUFFER_IS_RELEASED) == 0))
2846 memset(&diag_register, 0, sizeof(struct mpt2_diag_register));
2847 printk(MPT2SAS_INFO_FMT "posting host trace buffers\n",
2849 diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
2850 diag_register.requested_buffer_size = (1024 * 1024);
2851 diag_register.unique_id = 0x7075900;
2852 ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] = 0;
2853 _ctl_diag_register_2(ioc, &diag_register);
2854 } else if (!strcmp(str, "release")) {
2855 /* exit out if host buffers are already released */
2856 if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE])
2858 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2859 MPT2_DIAG_BUFFER_IS_REGISTERED) == 0)
2861 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
2862 MPT2_DIAG_BUFFER_IS_RELEASED))
2864 printk(MPT2SAS_INFO_FMT "releasing host trace buffer\n",
2866 _ctl_send_release(ioc, MPI2_DIAG_BUF_TYPE_TRACE, &issue_reset);
2872 static DEVICE_ATTR(host_trace_buffer_enable, S_IRUGO | S_IWUSR,
2873 _ctl_host_trace_buffer_enable_show, _ctl_host_trace_buffer_enable_store);
2875 struct device_attribute *mpt2sas_host_attrs[] = {
2876 &dev_attr_version_fw,
2877 &dev_attr_version_bios,
2878 &dev_attr_version_mpi,
2879 &dev_attr_version_product,
2880 &dev_attr_version_nvdata_persistent,
2881 &dev_attr_version_nvdata_default,
2882 &dev_attr_board_name,
2883 &dev_attr_board_assembly,
2884 &dev_attr_board_tracer,
2886 &dev_attr_device_delay,
2887 &dev_attr_logging_level,
2888 &dev_attr_fwfault_debug,
2889 &dev_attr_fw_queue_depth,
2890 &dev_attr_host_sas_address,
2891 &dev_attr_ioc_reset_count,
2892 &dev_attr_host_trace_buffer_size,
2893 &dev_attr_host_trace_buffer,
2894 &dev_attr_host_trace_buffer_enable,
2899 * _ctl_device_sas_address_show - sas address
2900 * @cdev - pointer to embedded class device
2901 * @buf - the buffer returned
2903 * This is the sas address for the target
2905 * A sysfs 'read-only' shost attribute.
2908 _ctl_device_sas_address_show(struct device *dev, struct device_attribute *attr,
2911 struct scsi_device *sdev = to_scsi_device(dev);
2912 struct MPT2SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
2914 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
2915 (unsigned long long)sas_device_priv_data->sas_target->sas_address);
2917 static DEVICE_ATTR(sas_address, S_IRUGO, _ctl_device_sas_address_show, NULL);
2920 * _ctl_device_handle_show - device handle
2921 * @cdev - pointer to embedded class device
2922 * @buf - the buffer returned
2924 * This is the firmware assigned device handle
2926 * A sysfs 'read-only' shost attribute.
2929 _ctl_device_handle_show(struct device *dev, struct device_attribute *attr,
2932 struct scsi_device *sdev = to_scsi_device(dev);
2933 struct MPT2SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
2935 return snprintf(buf, PAGE_SIZE, "0x%04x\n",
2936 sas_device_priv_data->sas_target->handle);
2938 static DEVICE_ATTR(sas_device_handle, S_IRUGO, _ctl_device_handle_show, NULL);
2940 struct device_attribute *mpt2sas_dev_attrs[] = {
2941 &dev_attr_sas_address,
2942 &dev_attr_sas_device_handle,
2946 static const struct file_operations ctl_fops = {
2947 .owner = THIS_MODULE,
2948 .unlocked_ioctl = _ctl_ioctl,
2949 .release = _ctl_release,
2951 .fasync = _ctl_fasync,
2952 #ifdef CONFIG_COMPAT
2953 .compat_ioctl = _ctl_ioctl_compat,
2957 static struct miscdevice ctl_dev = {
2958 .minor = MPT2SAS_MINOR,
2959 .name = MPT2SAS_DEV_NAME,
2964 * mpt2sas_ctl_init - main entry point for ctl.
2968 mpt2sas_ctl_init(void)
2971 if (misc_register(&ctl_dev) < 0)
2972 printk(KERN_ERR "%s can't register misc device [minor=%d]\n",
2973 MPT2SAS_DRIVER_NAME, MPT2SAS_MINOR);
2975 init_waitqueue_head(&ctl_poll_wait);
2979 * mpt2sas_ctl_exit - exit point for ctl
2983 mpt2sas_ctl_exit(void)
2985 struct MPT2SAS_ADAPTER *ioc;
2988 list_for_each_entry(ioc, &mpt2sas_ioc_list, list) {
2990 /* free memory associated to diag buffers */
2991 for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
2992 if (!ioc->diag_buffer[i])
2994 pci_free_consistent(ioc->pdev, ioc->diag_buffer_sz[i],
2995 ioc->diag_buffer[i], ioc->diag_buffer_dma[i]);
2996 ioc->diag_buffer[i] = NULL;
2997 ioc->diag_buffer_status[i] = 0;
3000 kfree(ioc->event_log);
3002 misc_deregister(&ctl_dev);