[SCSI] mpt fusion: Added support for MPT discovery completion check

sas_discovery_quiesce_io flag is used to control IO start/resume functionality.
IO will be stoped while doing discovery of topology. Once discovery is completed
It will resume IO. Resending patch including James review.

Signed-off-by: Kashyap Desai <kadesai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/message/fusion/mptbase.h b/drivers/message/fusion/mptbase.h
index 4a606764e317..8cd0a16cdfac 100644
--- a/drivers/message/fusion/mptbase.h
+++ b/drivers/message/fusion/mptbase.h
@@ -706,6 +706,7 @@ typedef struct _MPT_ADAPTER
         struct mutex             sas_discovery_mutex;
         u8                       sas_discovery_runtime;
         u8                       sas_discovery_ignore_events;
+        u8                       sas_discovery_quiesce_io;
         int                      sas_index; /* index refrencing */
         MPT_SAS_MGMT             sas_mgmt;
         struct work_struct       sas_persist_task;