[SCSI] qla2xxx: fix for multiqueue in MISX disabled case

 Fix to accommodate a hardware bug in multiqueue mode that does not
 work properly when acknowledgement of MSIX Interrupts is disabled.

Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 7a81e988fffe..384afda7dbe9 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2262,6 +2262,7 @@ struct qla_hw_data {
                 uint32_t        port0                   :1;
                 uint32_t        running_gold_fw         :1;
                 uint32_t        cpu_affinity_enabled    :1;
+                uint32_t        disable_msix_handshake  :1;
         } flags;
 
         /* This spinlock is used to protect "io transactions", you must
@@ -2384,6 +2385,7 @@ struct qla_hw_data {
 #define IS_QLA81XX(ha)          (IS_QLA8001(ha))
 #define IS_QLA2XXX_MIDTYPE(ha)  (IS_QLA24XX(ha) || IS_QLA84XX(ha) || \
                                 IS_QLA25XX(ha) || IS_QLA81XX(ha))
+#define IS_MSIX_NACK_CAPABLE(ha) (IS_QLA81XX(ha))
 #define IS_NOPOLLING_TYPE(ha)   ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && \
                                 (ha)->flags.msix_enabled)
 #define IS_FAC_REQUIRED(ha)     (IS_QLA81XX(ha))