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qla2xxx: Add flush after updating ATIOQ consumer index. 

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>
This commit is contained in:
Quinn Tran 2015-06-10 11:05:19 -04:00 committed by Nicholas Bellinger
parent b20f02e141
commit 3761f3e870
1 changed files with 1 additions and 0 deletions
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1
drivers/scsi/qla2xxx/qla_target.c
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@ -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