From c829c394165f981d49f05a9be228404d7a9398d4 Mon Sep 17 00:00:00 2001 From: James Smart Date: Mon, 13 Mar 2006 08:28:57 -0500 Subject: [SCSI] FC transport : Avoid device offline cases by stalling aborts until device unblocked This moves the eh_timed_out functionality from the scsi_host_template to the transport_template. Given that this is now a transport function, the EH_RESET_TIMER case no longer caps the timer reschedulings. The transport guarantees that this is not an infinite condition. Signed-off-by: James Bottomley --- include/scsi/scsi_transport.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/scsi/scsi_transport.h') diff --git a/include/scsi/scsi_transport.h b/include/scsi/scsi_transport.h index e7b1054adf8..b3657f11193 100644 --- a/include/scsi/scsi_transport.h +++ b/include/scsi/scsi_transport.h @@ -48,6 +48,17 @@ struct scsi_transport_template { * True if the transport wants to use a host-based work-queue */ unsigned int create_work_queue : 1; + + /* + * 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 + */ + enum scsi_eh_timer_return (* eh_timed_out)(struct scsi_cmnd *); }; #define transport_class_to_shost(tc) \ -- cgit v1.2.3