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| author | Wenchao Hao <haowenchao2@huawei.com> | 2023-10-10 17:20:45 +0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-10-16 20:50:11 -0400 |
| commit | 32be8b6e22eb76a08c66414593ef02d5eb151be7 (patch) | |
| tree | 1ac1e7e429442931dc115c8ad725dee0371f36c6 /drivers/scsi/scsi_proc.c | |
| parent | 962d77cd4c852e6a34ffd44fc5f32ba678e02633 (diff) | |
scsi: scsi_debug: Time out command if the error is injected
If a timeout error is injected, return 0 from scsi_debug_queuecommand to
make the command time out.
Time out SCSI command format:
+--------+------+-------------------------------------------------------+
| Column | Type | Description |
+--------+------+-------------------------------------------------------+
| 1 | u8 | Error type, fixed to 0x0 |
+--------+------+-------------------------------------------------------+
| 2 | s32 | Error count |
| | | 0: this rule will be ignored |
| | | positive: the rule will always take effect |
| | | negative: the rule takes effect n times where -n is |
| | | the value given. Ignored after n times |
+--------+------+-------------------------------------------------------+
| 3 | x8 | SCSI command opcode, 0xff for all commands |
+--------+------+-------------------------------------------------------+
Examples:
error=/sys/kernel/debug/scsi_debug/0:0:0:1/error
echo "0 -10 0x12" > ${error}
will make the device's inquiry command time out 10 times.
echo "0 1 0x12" > ${error}
will make the device's inquiry time out each time it is invoked on this
device.
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Wenchao Hao <haowenchao2@huawei.com>
Link: https://lore.kernel.org/r/20231010092051.608007-5-haowenchao2@huawei.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/scsi_proc.c')
0 files changed, 0 insertions, 0 deletions