drivers/scsi/mpt3sas/mpt3sas_trigger_diag.h

   1 /*
   2  * This is the Fusion MPT base driver providing common API layer interface
   3  * to set Diagnostic triggers for MPT (Message Passing Technology) based
   4  * controllers
   5  *
   6  * This code is based on drivers/scsi/mpt3sas/mpt3sas_base.h
   7  * Copyright (C) 2012-2014  LSI Corporation
   8  * Copyright (C) 2013-2014 Avago Technologies
   9  *  (mailto: MPT-FusionLinux.pdl@avagotech.com)
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License
  13  * as published by the Free Software Foundation; either version 2
  14  * of the License, or (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * NO WARRANTY
  22  * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
  23  * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
  24  * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
  25  * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
  26  * solely responsible for determining the appropriateness of using and
  27  * distributing the Program and assumes all risks associated with its
  28  * exercise of rights under this Agreement, including but not limited to
  29  * the risks and costs of program errors, damage to or loss of data,
  30  * programs or equipment, and unavailability or interruption of operations.
  31
  32  * DISCLAIMER OF LIABILITY
  33  * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
  34  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  35  * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
  36  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  37  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  38  * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
  39  * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
  40
  41  * You should have received a copy of the GNU General Public License
  42  * along with this program; if not, write to the Free Software
  43  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
  44  * USA.
  45  */
  46   /* Diagnostic Trigger Configuration Data Structures */
  47
  48 #ifndef MPT3SAS_TRIGGER_DIAG_H_INCLUDED
  49 #define MPT3SAS_TRIGGER_DIAG_H_INCLUDED
  50
  51 /* limitation on number of entries */
  52 #define NUM_VALID_ENTRIES               (20)
  53
  54 /* trigger types */
  55 #define MPT3SAS_TRIGGER_MASTER          (1)
  56 #define MPT3SAS_TRIGGER_EVENT           (2)
  57 #define MPT3SAS_TRIGGER_SCSI            (3)
  58 #define MPT3SAS_TRIGGER_MPI             (4)
  59
  60 /* trigger names */
  61 #define MASTER_TRIGGER_FILE_NAME        "diag_trigger_master"
  62 #define EVENT_TRIGGERS_FILE_NAME        "diag_trigger_event"
  63 #define SCSI_TRIGGERS_FILE_NAME         "diag_trigger_scsi"
  64 #define MPI_TRIGGER_FILE_NAME           "diag_trigger_mpi"
  65
  66 /* master trigger bitmask */
  67 #define MASTER_TRIGGER_FW_FAULT         (0x00000001)
  68 #define MASTER_TRIGGER_ADAPTER_RESET    (0x00000002)
  69 #define MASTER_TRIGGER_TASK_MANAGMENT   (0x00000004)
  70 #define MASTER_TRIGGER_DEVICE_REMOVAL   (0x00000008)
  71
  72 /* fake firmware event for tigger */
  73 #define MPI3_EVENT_DIAGNOSTIC_TRIGGER_FIRED     (0x6E)
  74
  75 /**
  76  * MasterTrigger is a single U32 passed to/from sysfs.
  77  *
  78  * Bit Flags (enables) include:
  79  * 1. FW Faults
  80  * 2. Adapter Reset issued by driver
  81  * 3. TMs
  82  * 4. Device Remove Event sent by FW
  83  */
  84
  85 struct SL_WH_MASTER_TRIGGER_T {
  86         uint32_t MasterData;
  87 };
  88
  89 /**
  90  * struct SL_WH_EVENT_TRIGGER_T -  Definition of an event trigger element
  91  * @EventValue: Event Code to trigger on
  92  * @LogEntryQualifier: Type of FW event that logged (Log Entry Added Event only)
  93  *
  94  * Defines an event that should induce a DIAG_TRIGGER driver event if observed.
  95  */
  96 struct SL_WH_EVENT_TRIGGER_T {
  97         uint16_t EventValue;
  98         uint16_t LogEntryQualifier;
  99 };
 100
 101 /**
 102  * struct SL_WH_EVENT_TRIGGERS_T -  Structure passed to/from sysfs containing a
 103  *    list of Event Triggers to be monitored for.
 104  * @ValidEntries: Number of _SL_WH_EVENT_TRIGGER_T structures contained in this
 105  *    structure.
 106  * @EventTriggerEntry: List of Event trigger elements.
 107  *
 108  * This binary structure is transferred via sysfs to get/set Event Triggers
 109  * in the Linux Driver.
 110  */
 111
 112 struct SL_WH_EVENT_TRIGGERS_T {
 113         uint32_t ValidEntries;
 114         struct SL_WH_EVENT_TRIGGER_T EventTriggerEntry[NUM_VALID_ENTRIES];
 115 };
 116
 117 /**
 118  * struct SL_WH_SCSI_TRIGGER_T -  Definition of a SCSI trigger element
 119  * @ASCQ: Additional Sense Code Qualifier.  Can be specific or 0xFF for
 120  *     wildcard.
 121  * @ASC: Additional Sense Code.  Can be specific or 0xFF for wildcard
 122  * @SenseKey: SCSI Sense Key
 123  *
 124  * Defines a sense key (single or many variants) that should induce a
 125  * DIAG_TRIGGER driver event if observed.
 126  */
 127 struct SL_WH_SCSI_TRIGGER_T {
 128         U8 ASCQ;
 129         U8 ASC;
 130         U8 SenseKey;
 131         U8 Reserved;
 132 };
 133
 134 /**
 135  * struct SL_WH_SCSI_TRIGGERS_T -  Structure passed to/from sysfs containing a
 136  *    list of SCSI sense codes that should trigger a DIAG_SERVICE event when
 137  *    observed.
 138  * @ValidEntries: Number of _SL_WH_SCSI_TRIGGER_T structures contained in this
 139  *    structure.
 140  * @SCSITriggerEntry: List of SCSI Sense Code trigger elements.
 141  *
 142  * This binary structure is transferred via sysfs to get/set SCSI Sense Code
 143  * Triggers in the Linux Driver.
 144  */
 145 struct SL_WH_SCSI_TRIGGERS_T {
 146         uint32_t ValidEntries;
 147         struct SL_WH_SCSI_TRIGGER_T SCSITriggerEntry[NUM_VALID_ENTRIES];
 148 };
 149
 150 /**
 151  * struct SL_WH_MPI_TRIGGER_T -  Definition of an MPI trigger element
 152  * @IOCStatus: MPI IOCStatus
 153  * @IocLogInfo: MPI IocLogInfo.  Can be specific or 0xFFFFFFFF for wildcard
 154  *
 155  * Defines a MPI IOCStatus/IocLogInfo pair that should induce a DIAG_TRIGGER
 156  * driver event if observed.
 157  */
 158 struct SL_WH_MPI_TRIGGER_T {
 159         uint16_t IOCStatus;
 160         uint16_t Reserved;
 161         uint32_t IocLogInfo;
 162 };
 163
 164 /**
 165  * struct SL_WH_MPI_TRIGGERS_T -  Structure passed to/from sysfs containing a
 166  *    list of MPI IOCStatus/IocLogInfo pairs that should trigger a DIAG_SERVICE
 167  *    event when observed.
 168  * @ValidEntries: Number of _SL_WH_MPI_TRIGGER_T structures contained in this
 169  *    structure.
 170  * @MPITriggerEntry: List of MPI IOCStatus/IocLogInfo trigger elements.
 171  *
 172  * This binary structure is transferred via sysfs to get/set MPI Error Triggers
 173  * in the Linux Driver.
 174  */
 175 struct SL_WH_MPI_TRIGGERS_T {
 176         uint32_t ValidEntries;
 177         struct SL_WH_MPI_TRIGGER_T MPITriggerEntry[NUM_VALID_ENTRIES];
 178 };
 179
 180 /**
 181  * struct SL_WH_TRIGGERS_EVENT_DATA_T -  event data for trigger
 182  * @trigger_type: trigger type (see MPT3SAS_TRIGGER_XXXX)
 183  * @u: trigger condition that caused trigger to be sent
 184  */
 185 struct SL_WH_TRIGGERS_EVENT_DATA_T {
 186         uint32_t trigger_type;
 187         union {
 188                 struct SL_WH_MASTER_TRIGGER_T master;
 189                 struct SL_WH_EVENT_TRIGGER_T event;
 190                 struct SL_WH_SCSI_TRIGGER_T scsi;
 191                 struct SL_WH_MPI_TRIGGER_T mpi;
 192         } u;
 193 };
 194 #endif /* MPT3SAS_TRIGGER_DIAG_H_INCLUDED */