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1/*2 * This module provides common API to set Diagnostic trigger for MPT3 * (Message Passing Technology) based controllers4 *5 * This code is based on drivers/scsi/mpt3sas/mpt3sas_trigger_diag.c6 * Copyright (C) 2012-2014 LSI Corporation7 * Copyright (C) 2013-2014 Avago Technologies8 * (mailto: MPT-FusionLinux.pdl@avagotech.com)9 *10 * This program is free software; you can redistribute it and/or11 * modify it under the terms of the GNU General Public License12 * as published by the Free Software Foundation; either version 213 * of the License, or (at your option) any later version.14 *15 * This program is distributed in the hope that it will be useful,16 * but WITHOUT ANY WARRANTY; without even the implied warranty of17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the18 * GNU General Public License for more details.19 *20 * NO WARRANTY21 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR22 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT23 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,24 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is25 * solely responsible for determining the appropriateness of using and26 * distributing the Program and assumes all risks associated with its27 * exercise of rights under this Agreement, including but not limited to28 * the risks and costs of program errors, damage to or loss of data,29 * programs or equipment, and unavailability or interruption of operations.30 31 * DISCLAIMER OF LIABILITY32 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY33 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL34 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND35 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR36 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE37 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED38 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES39 40 * You should have received a copy of the GNU General Public License41 * along with this program; if not, write to the Free Software42 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,43 * USA.44 */45 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>56 57#include <linux/io.h>58#include <linux/uaccess.h>59 60#include "mpt3sas_base.h"61 62/**63 * _mpt3sas_raise_sigio - notifiy app64 * @ioc: per adapter object65 * @event_data: ?66 */67static void68_mpt3sas_raise_sigio(struct MPT3SAS_ADAPTER *ioc,69 struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data)70{71 Mpi2EventNotificationReply_t *mpi_reply;72 u16 sz, event_data_sz;73 unsigned long flags;74 75 dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: enter\n", __func__));76 77 sz = offsetof(Mpi2EventNotificationReply_t, EventData) +78 sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T) + 4;79 mpi_reply = kzalloc(sz, GFP_KERNEL);80 if (!mpi_reply)81 goto out;82 mpi_reply->Event = cpu_to_le16(MPI3_EVENT_DIAGNOSTIC_TRIGGER_FIRED);83 event_data_sz = (sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T) + 4) / 4;84 mpi_reply->EventDataLength = cpu_to_le16(event_data_sz);85 memcpy(&mpi_reply->EventData, event_data,86 sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));87 dTriggerDiagPrintk(ioc,88 ioc_info(ioc, "%s: add to driver event log\n",89 __func__));90 mpt3sas_ctl_add_to_event_log(ioc, mpi_reply);91 kfree(mpi_reply);92 out:93 94 /* clearing the diag_trigger_active flag */95 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);96 dTriggerDiagPrintk(ioc,97 ioc_info(ioc, "%s: clearing diag_trigger_active flag\n",98 __func__));99 ioc->diag_trigger_active = 0;100 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);101 102 dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: exit\n",103 __func__));104}105 106/**107 * mpt3sas_process_trigger_data - process the event data for the trigger108 * @ioc: per adapter object109 * @event_data: ?110 */111void112mpt3sas_process_trigger_data(struct MPT3SAS_ADAPTER *ioc,113 struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data)114{115 u8 issue_reset = 0;116 u32 *trig_data = (u32 *)&event_data->u.master;117 118 dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: enter\n", __func__));119 120 /* release the diag buffer trace */121 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &122 MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {123 /*124 * add a log message so that user knows which event caused125 * the release126 */127 ioc_info(ioc,128 "%s: Releasing the trace buffer. Trigger_Type 0x%08x, Data[0] 0x%08x, Data[1] 0x%08x\n",129 __func__, event_data->trigger_type,130 trig_data[0], trig_data[1]);131 mpt3sas_send_diag_release(ioc, MPI2_DIAG_BUF_TYPE_TRACE,132 &issue_reset);133 }134 135 ioc->htb_rel.buffer_rel_condition = MPT3_DIAG_BUFFER_REL_TRIGGER;136 if (event_data) {137 ioc->htb_rel.trigger_type = event_data->trigger_type;138 switch (event_data->trigger_type) {139 case MPT3SAS_TRIGGER_SCSI:140 memcpy(&ioc->htb_rel.trigger_info_dwords,141 &event_data->u.scsi,142 sizeof(struct SL_WH_SCSI_TRIGGER_T));143 break;144 case MPT3SAS_TRIGGER_MPI:145 memcpy(&ioc->htb_rel.trigger_info_dwords,146 &event_data->u.mpi,147 sizeof(struct SL_WH_MPI_TRIGGER_T));148 break;149 case MPT3SAS_TRIGGER_MASTER:150 ioc->htb_rel.trigger_info_dwords[0] =151 event_data->u.master.MasterData;152 break;153 case MPT3SAS_TRIGGER_EVENT:154 memcpy(&ioc->htb_rel.trigger_info_dwords,155 &event_data->u.event,156 sizeof(struct SL_WH_EVENT_TRIGGER_T));157 break;158 default:159 ioc_err(ioc, "%d - Is not a valid Trigger type\n",160 event_data->trigger_type);161 break;162 }163 }164 _mpt3sas_raise_sigio(ioc, event_data);165 166 dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: exit\n",167 __func__));168}169 170/**171 * mpt3sas_trigger_master - Master trigger handler172 * @ioc: per adapter object173 * @trigger_bitmask:174 *175 */176void177mpt3sas_trigger_master(struct MPT3SAS_ADAPTER *ioc, u32 trigger_bitmask)178{179 struct SL_WH_TRIGGERS_EVENT_DATA_T event_data;180 unsigned long flags;181 u8 found_match = 0;182 183 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);184 185 if (trigger_bitmask & MASTER_TRIGGER_FW_FAULT ||186 trigger_bitmask & MASTER_TRIGGER_ADAPTER_RESET)187 goto by_pass_checks;188 189 /* check to see if trace buffers are currently registered */190 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &191 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {192 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);193 return;194 }195 196 /* check to see if trace buffers are currently released */197 if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &198 MPT3_DIAG_BUFFER_IS_RELEASED) {199 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);200 return;201 }202 203 by_pass_checks:204 205 dTriggerDiagPrintk(ioc,206 ioc_info(ioc, "%s: enter - trigger_bitmask = 0x%08x\n",207 __func__, trigger_bitmask));208 209 /* don't send trigger if an trigger is currently active */210 if (ioc->diag_trigger_active) {211 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);212 goto out;213 }214 215 /* check for the trigger condition */216 if (ioc->diag_trigger_master.MasterData & trigger_bitmask) {217 found_match = 1;218 ioc->diag_trigger_active = 1;219 dTriggerDiagPrintk(ioc,220 ioc_info(ioc, "%s: setting diag_trigger_active flag\n",221 __func__));222 }223 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);224 225 if (!found_match)226 goto out;227 228 memset(&event_data, 0, sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));229 event_data.trigger_type = MPT3SAS_TRIGGER_MASTER;230 event_data.u.master.MasterData = trigger_bitmask;231 232 if (trigger_bitmask & MASTER_TRIGGER_FW_FAULT ||233 trigger_bitmask & MASTER_TRIGGER_ADAPTER_RESET) {234 ioc->htb_rel.trigger_type = MPT3SAS_TRIGGER_MASTER;235 ioc->htb_rel.trigger_info_dwords[0] = trigger_bitmask;236 if (ioc->reset_from_user)237 ioc->htb_rel.trigger_info_dwords[1] =238 MPT_DIAG_RESET_ISSUED_BY_USER;239 _mpt3sas_raise_sigio(ioc, &event_data);240 } else241 mpt3sas_send_trigger_data_event(ioc, &event_data);242 243 out:244 dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: exit\n",245 __func__));246}247 248/**249 * mpt3sas_trigger_event - Event trigger handler250 * @ioc: per adapter object251 * @event: ?252 * @log_entry_qualifier: ?253 *254 */255void256mpt3sas_trigger_event(struct MPT3SAS_ADAPTER *ioc, u16 event,257 u16 log_entry_qualifier)258{259 struct SL_WH_TRIGGERS_EVENT_DATA_T event_data;260 struct SL_WH_EVENT_TRIGGER_T *event_trigger;261 int i;262 unsigned long flags;263 u8 found_match;264 265 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);266 267 /* check to see if trace buffers are currently registered */268 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &269 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {270 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);271 return;272 }273 274 /* check to see if trace buffers are currently released */275 if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &276 MPT3_DIAG_BUFFER_IS_RELEASED) {277 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);278 return;279 }280 281 dTriggerDiagPrintk(ioc,282 ioc_info(ioc, "%s: enter - event = 0x%04x, log_entry_qualifier = 0x%04x\n",283 __func__, event, log_entry_qualifier));284 285 /* don't send trigger if an trigger is currently active */286 if (ioc->diag_trigger_active) {287 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);288 goto out;289 }290 291 /* check for the trigger condition */292 event_trigger = ioc->diag_trigger_event.EventTriggerEntry;293 for (i = 0 , found_match = 0; i < ioc->diag_trigger_event.ValidEntries294 && !found_match; i++, event_trigger++) {295 if (event_trigger->EventValue != event)296 continue;297 if (event == MPI2_EVENT_LOG_ENTRY_ADDED) {298 if (event_trigger->LogEntryQualifier ==299 log_entry_qualifier)300 found_match = 1;301 continue;302 }303 found_match = 1;304 ioc->diag_trigger_active = 1;305 dTriggerDiagPrintk(ioc,306 ioc_info(ioc, "%s: setting diag_trigger_active flag\n",307 __func__));308 }309 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);310 311 if (!found_match)312 goto out;313 314 dTriggerDiagPrintk(ioc,315 ioc_info(ioc, "%s: setting diag_trigger_active flag\n",316 __func__));317 memset(&event_data, 0, sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));318 event_data.trigger_type = MPT3SAS_TRIGGER_EVENT;319 event_data.u.event.EventValue = event;320 event_data.u.event.LogEntryQualifier = log_entry_qualifier;321 mpt3sas_send_trigger_data_event(ioc, &event_data);322 out:323 dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: exit\n",324 __func__));325}326 327/**328 * mpt3sas_trigger_scsi - SCSI trigger handler329 * @ioc: per adapter object330 * @sense_key: ?331 * @asc: ?332 * @ascq: ?333 *334 */335void336mpt3sas_trigger_scsi(struct MPT3SAS_ADAPTER *ioc, u8 sense_key, u8 asc,337 u8 ascq)338{339 struct SL_WH_TRIGGERS_EVENT_DATA_T event_data;340 struct SL_WH_SCSI_TRIGGER_T *scsi_trigger;341 int i;342 unsigned long flags;343 u8 found_match;344 345 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);346 347 /* check to see if trace buffers are currently registered */348 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &349 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {350 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);351 return;352 }353 354 /* check to see if trace buffers are currently released */355 if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &356 MPT3_DIAG_BUFFER_IS_RELEASED) {357 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);358 return;359 }360 361 dTriggerDiagPrintk(ioc,362 ioc_info(ioc, "%s: enter - sense_key = 0x%02x, asc = 0x%02x, ascq = 0x%02x\n",363 __func__, sense_key, asc, ascq));364 365 /* don't send trigger if an trigger is currently active */366 if (ioc->diag_trigger_active) {367 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);368 goto out;369 }370 371 /* check for the trigger condition */372 scsi_trigger = ioc->diag_trigger_scsi.SCSITriggerEntry;373 for (i = 0 , found_match = 0; i < ioc->diag_trigger_scsi.ValidEntries374 && !found_match; i++, scsi_trigger++) {375 if (scsi_trigger->SenseKey != sense_key)376 continue;377 if (!(scsi_trigger->ASC == 0xFF || scsi_trigger->ASC == asc))378 continue;379 if (!(scsi_trigger->ASCQ == 0xFF || scsi_trigger->ASCQ == ascq))380 continue;381 found_match = 1;382 ioc->diag_trigger_active = 1;383 }384 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);385 386 if (!found_match)387 goto out;388 389 dTriggerDiagPrintk(ioc,390 ioc_info(ioc, "%s: setting diag_trigger_active flag\n",391 __func__));392 memset(&event_data, 0, sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));393 event_data.trigger_type = MPT3SAS_TRIGGER_SCSI;394 event_data.u.scsi.SenseKey = sense_key;395 event_data.u.scsi.ASC = asc;396 event_data.u.scsi.ASCQ = ascq;397 mpt3sas_send_trigger_data_event(ioc, &event_data);398 out:399 dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: exit\n",400 __func__));401}402 403/**404 * mpt3sas_trigger_mpi - MPI trigger handler405 * @ioc: per adapter object406 * @ioc_status: ?407 * @loginfo: ?408 *409 */410void411mpt3sas_trigger_mpi(struct MPT3SAS_ADAPTER *ioc, u16 ioc_status, u32 loginfo)412{413 struct SL_WH_TRIGGERS_EVENT_DATA_T event_data;414 struct SL_WH_MPI_TRIGGER_T *mpi_trigger;415 int i;416 unsigned long flags;417 u8 found_match;418 419 spin_lock_irqsave(&ioc->diag_trigger_lock, flags);420 421 /* check to see if trace buffers are currently registered */422 if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &423 MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {424 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);425 return;426 }427 428 /* check to see if trace buffers are currently released */429 if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &430 MPT3_DIAG_BUFFER_IS_RELEASED) {431 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);432 return;433 }434 435 dTriggerDiagPrintk(ioc,436 ioc_info(ioc, "%s: enter - ioc_status = 0x%04x, loginfo = 0x%08x\n",437 __func__, ioc_status, loginfo));438 439 /* don't send trigger if an trigger is currently active */440 if (ioc->diag_trigger_active) {441 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);442 goto out;443 }444 445 /* check for the trigger condition */446 mpi_trigger = ioc->diag_trigger_mpi.MPITriggerEntry;447 for (i = 0 , found_match = 0; i < ioc->diag_trigger_mpi.ValidEntries448 && !found_match; i++, mpi_trigger++) {449 if (mpi_trigger->IOCStatus != ioc_status)450 continue;451 if (!(mpi_trigger->IocLogInfo == 0xFFFFFFFF ||452 mpi_trigger->IocLogInfo == loginfo))453 continue;454 found_match = 1;455 ioc->diag_trigger_active = 1;456 }457 spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);458 459 if (!found_match)460 goto out;461 462 dTriggerDiagPrintk(ioc,463 ioc_info(ioc, "%s: setting diag_trigger_active flag\n",464 __func__));465 memset(&event_data, 0, sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));466 event_data.trigger_type = MPT3SAS_TRIGGER_MPI;467 event_data.u.mpi.IOCStatus = ioc_status;468 event_data.u.mpi.IocLogInfo = loginfo;469 mpt3sas_send_trigger_data_event(ioc, &event_data);470 out:471 dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: exit\n",472 __func__));473}474