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 */
195