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authorAndrew Vasquez <andrew.vasquez@qlogic.com>2012-11-21 07:40:33 (GMT)
committerJames Bottomley <JBottomley@Parallels.com>2012-11-30 14:47:48 (GMT)
commit7e98df229e915fdc38451d6f2de94e0589793288 (patch)
treecbc0e441288f0ad326ddaf5e84d043d534c06c44 /drivers/scsi
parent53016ed32182e1829bcb48bab37af54a7a0c95e2 (diff)
downloadlinux-7e98df229e915fdc38451d6f2de94e0589793288.tar.xz
[SCSI] qla2xxx: Use correct Request-Q-Out register during bidirectional request processing
Original code was not corrected for ISP83xx support. Instead code should used the cached reference from the req_que structure, rather than the legacy 'if (ISP-TYPE(X))... else if (ISP-TYPE(Y))...' codes. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/qla2xxx/qla_iocb.c11
1 files changed, 1 insertions, 10 deletions
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index b610404..a481684 100644
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -2748,7 +2748,6 @@ qla2x00_start_bidir(srb_t *sp, struct scsi_qla_host *vha, uint32_t tot_dsds)
struct rsp_que *rsp;
struct req_que *req;
int rval = EXT_STATUS_OK;
- device_reg_t __iomem *reg = ISP_QUE_REG(ha, vha->req->id);
rval = QLA_SUCCESS;
@@ -2786,15 +2785,7 @@ qla2x00_start_bidir(srb_t *sp, struct scsi_qla_host *vha, uint32_t tot_dsds)
/* Check for room on request queue. */
if (req->cnt < req_cnt + 2) {
- if (ha->mqenable)
- cnt = RD_REG_DWORD(&reg->isp25mq.req_q_out);
- else if (IS_QLA82XX(ha))
- cnt = RD_REG_DWORD(&reg->isp82.req_q_out);
- else if (IS_FWI2_CAPABLE(ha))
- cnt = RD_REG_DWORD(&reg->isp24.req_q_out);
- else
- cnt = qla2x00_debounce_register(
- ISP_REQ_Q_OUT(ha, &reg->isp));
+ cnt = RD_REG_DWORD_RELAXED(req->req_q_out);
if (req->ring_index < cnt)
req->cnt = cnt - req->ring_index;