diff options
author | James Bottomley <James.Bottomley@steeleye.com> | 2007-03-16 18:44:41 -0400 |
---|---|---|
committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2007-03-20 11:56:49 -0400 |
commit | 6c5f8ce1fb7e8925d957f754a9513911399791b9 (patch) | |
tree | 700bd0e02ed3bd704049abed2d7113f40c9e3467 /include | |
parent | 03d4433721880bf1972c924b168e4e1dd3c59d53 (diff) |
[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')
-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 { | |||
326 | int (*proc_info)(struct Scsi_Host *, char *, char **, off_t, int, int); | 326 | int (*proc_info)(struct Scsi_Host *, char *, char **, off_t, int, int); |
327 | 327 | ||
328 | /* | 328 | /* |
329 | * This is an optional routine that allows the transport to become | ||
330 | * involved when a scsi io timer fires. The return value tells the | ||
331 | * timer routine how to finish the io timeout handling: | ||
332 | * EH_HANDLED: I fixed the error, please complete the command | ||
333 | * EH_RESET_TIMER: I need more time, reset the timer and | ||
334 | * begin counting again | ||
335 | * EH_NOT_HANDLED Begin normal error recovery | ||
336 | * | ||
337 | * Status: OPTIONAL | ||
338 | */ | ||
339 | enum scsi_eh_timer_return (* eh_timed_out)(struct scsi_cmnd *); | ||
340 | |||
341 | /* | ||
329 | * suspend support | 342 | * suspend support |
330 | */ | 343 | */ |
331 | int (*resume)(struct scsi_device *); | 344 | int (*resume)(struct scsi_device *); |