[SCSI] qla4xxx: use CRB Register for Request Queue in-pointer

Switching from doorbell mechanism to CRB register based

Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Shyam Sundar <shyam.sundar@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>

1 files changed, 1 insertions, 9 deletions

diff --git a/drivers/scsi/qla4xxx/ql4_iocb.c b/drivers/scsi/qla4xxx/ql4_iocb.c
index 4ef9ba112ee8..5ae49fd87846 100644
--- a/drivers/scsi/qla4xxx/ql4_iocb.c
+++ b/drivers/scsi/qla4xxx/ql4_iocb.c
@@ -202,19 +202,11 @@ static void qla4xxx_build_scsi_iocbs(struct srb *srb,
 void qla4_8xxx_queue_iocb(struct scsi_qla_host *ha)
 {
         uint32_t dbval = 0;
-        unsigned long wtime;
 
         dbval = 0x14 | (ha->func_num << 5);
         dbval = dbval | (0 << 8) | (ha->request_in << 16);
-        writel(dbval, (unsigned long __iomem *)ha->nx_db_wr_ptr);
-        wmb();
 
-        wtime = jiffies + (2 * HZ);
-        while (readl((void __iomem *)ha->nx_db_rd_ptr) != dbval &&
-            !time_after_eq(jiffies, wtime)) {
-                writel(dbval, (unsigned long __iomem *)ha->nx_db_wr_ptr);
-                wmb();
-        }
+        qla4_8xxx_wr_32(ha, ha->nx_db_wr_ptr, ha->request_in);
 }
 
 /**