[SCSI] qla4xxx: Fix processing response queue during probe

Issue:
While booting with kdump kernel, driver receive IOCB interrupts
for which it is not ready which results in processing them
before init_firmware during driver probe

Fix:
Two steps solution
1. Make driver ready to process the interrupt before interupts
   handlers is registered.
2. Stop driver processing iocb interrupts if not generated as per
   firmware protocol i.e R2H bit set

Signed-off-by: Tej Parkash <tej.parkash@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 0 insertions, 3 deletions

diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c
index 6905bad3e15c..52c0a48ab41f 100644
--- a/drivers/scsi/qla4xxx/ql4_mbx.c
+++ b/drivers/scsi/qla4xxx/ql4_mbx.c
@@ -648,9 +648,6 @@ int qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha)
                 goto exit_init_fw_cb;
         }
 
-        /* Initialize request and response queues. */
-        qla4xxx_init_rings(ha);
-
         /* Fill in the request and response queue information. */
         init_fw_cb->rqq_consumer_idx = cpu_to_le16(ha->request_out);
         init_fw_cb->compq_producer_idx = cpu_to_le16(ha->response_in);