From 6c5f8ce1fb7e8925d957f754a9513911399791b9 Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Fri, 16 Mar 2007 17:44:41 -0500 Subject: [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 --- include/scsi/scsi_host.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include/scsi/scsi_host.h') 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 @@ -325,6 +325,19 @@ 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 */ -- cgit v1.2.3-55-g7522