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qla2xxx: Add flush after updating ATIOQ consumer index.
author
Quinn Tran
<quinn.tran@qlogic.com>
Wed, 10 Jun 2015 15:05:19 +0000
(11:05 -0400)
committer
Nicholas Bellinger
<nab@linux-iscsi.org>
Fri, 24 Jul 2015 21:19:05 +0000
(14:19 -0700)
After updating the consumer index of ATIO Q, a read is
required to flush the write to the adapter register.
Signed-off-by: Quinn Tran <quinn.tran@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Reviewed-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
drivers/scsi/qla2xxx/qla_target.c
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diff --git
a/drivers/scsi/qla2xxx/qla_target.c
b/drivers/scsi/qla2xxx/qla_target.c
index
9c14d10
..
5047c85
100644
(file)
--- a/
drivers/scsi/qla2xxx/qla_target.c
+++ b/
drivers/scsi/qla2xxx/qla_target.c
@@
-5546,6
+5546,7
@@
qlt_24xx_process_atio_queue(struct scsi_qla_host *vha)
/* Adjust ring index */
WRT_REG_DWORD(ISP_ATIO_Q_OUT(vha), ha->tgt.atio_ring_index);
+ RD_REG_DWORD_RELAXED(ISP_ATIO_Q_OUT(vha));
}
void