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authorNilesh Javali <nilesh.javali@qlogic.com>2010-07-30 14:28:07 +0530
committerJames Bottomley <James.Bottomley@suse.de>2010-08-06 12:00:12 -0500
commit21033639699d883668f6937b03e7b710771ad37e (patch)
tree1eef4627c27ae3c1f8a42e7a009a34455431ac01 /drivers/scsi/qla4xxx/ql4_glbl.h
parent2ccdf0dce41a39db3721fe801dac5c5effa8e4be (diff)
[SCSI] qla4xxx: Handle outstanding mbx cmds on hung f/w scenarios
Outstanding mailbox commands, have no way to recover on f/w hung, and we timeout on waiting for mbx response. This in turn affects the recovery process as follows: - We might already be in dpc while waiting for mbx to complete, so recovery for that pci function will never get invoked. Reset Timeout (10 sec) is far less than mbx timeout (30 sec). - Other mbx cmds will get stuck due to serial mbx access. Solution is to identify fw-hung scenario and handle outstanding mbx commands to have an early-exit instead of waiting for response. Other mbx commands waiting for access will also do an early-exit if fw-hung is still applicable. Signed-off-by: Nilesh Javali <nilesh.javali@qlogic.com> Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Signed-off-by: Ravi Anand <ravi.anand@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/qla4xxx/ql4_glbl.h')
-rw-r--r--drivers/scsi/qla4xxx/ql4_glbl.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_glbl.h b/drivers/scsi/qla4xxx/ql4_glbl.h
index c9cd5d6db982..ea3db23602e6 100644
--- a/drivers/scsi/qla4xxx/ql4_glbl.h
+++ b/drivers/scsi/qla4xxx/ql4_glbl.h
@@ -93,6 +93,7 @@ void qla4xxx_free_irqs(struct scsi_qla_host *ha);
void qla4xxx_process_response_queue(struct scsi_qla_host *ha);
void qla4xxx_wake_dpc(struct scsi_qla_host *ha);
void qla4xxx_get_conn_event_log(struct scsi_qla_host *ha);
+void qla4xxx_mailbox_premature_completion(struct scsi_qla_host *ha);
void qla4_8xxx_pci_config(struct scsi_qla_host *);
int qla4_8xxx_iospace_config(struct scsi_qla_host *ha);