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author | James Bottomley <James.Bottomley@steeleye.com> | 2007-03-16 23:44:41 +0100 |
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committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2007-03-20 16:56:49 +0100 |
commit | 6c5f8ce1fb7e8925d957f754a9513911399791b9 (patch) | |
tree | 700bd0e02ed3bd704049abed2d7113f40c9e3467 /include/scsi/scsi_host.h | |
parent | [SCSI] aacraid: Improved error handling (diff) | |
download | linux-6c5f8ce1fb7e8925d957f754a9513911399791b9.tar.xz linux-6c5f8ce1fb7e8925d957f754a9513911399791b9.zip |
[SCSI] expose eh_timed_out to the host template
It looks like megaraid_sas at least needs this to throttle its commands
as they begin to time out. The code keeps the existing transport
template use of eh_timed_out (and allows the transport to override the
host if they both have this callback).
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'include/scsi/scsi_host.h')
-rw-r--r-- | include/scsi/scsi_host.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index 965b6b8ffec5..68f461b7a835 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -326,6 +326,19 @@ struct scsi_host_template { int (*proc_info)(struct Scsi_Host *, char *, char **, off_t, int, int); /* + * This is an optional routine that allows the transport to become + * involved when a scsi io timer fires. The return value tells the + * timer routine how to finish the io timeout handling: + * EH_HANDLED: I fixed the error, please complete the command + * EH_RESET_TIMER: I need more time, reset the timer and + * begin counting again + * EH_NOT_HANDLED Begin normal error recovery + * + * Status: OPTIONAL + */ + enum scsi_eh_timer_return (* eh_timed_out)(struct scsi_cmnd *); + + /* * suspend support */ int (*resume)(struct scsi_device *); |