[PATCH 07/10] qla2xxx: Call process_response_queue() in Tx path
From: Nilesh Javali <njavali@marvell.com>
Date: 2021-09-08 07:42:21
Also in:
linux-nvme
Subsystem:
qlogic qla2xxx fc-scsi driver, scsi subsystem, the rest · Maintainers:
Nilesh Javali, "James E.J. Bottomley", "Martin K. Petersen", Linus Torvalds
From: Shreyas Deodhar <redacted> Process responses in Tx path if any available for better performance. Signed-off-by: Shreyas Deodhar<redacted> Signed-off-by: Nilesh Javali <njavali@marvell.com> --- drivers/scsi/qla2xxx/qla_nvme.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/scsi/qla2xxx/qla_nvme.c b/drivers/scsi/qla2xxx/qla_nvme.c
index 877b2b625020..0ae1e081cb03 100644
--- a/drivers/scsi/qla2xxx/qla_nvme.c
+++ b/drivers/scsi/qla2xxx/qla_nvme.c@@ -399,6 +399,7 @@ static inline int qla2x00_start_nvme_mq(srb_t *sp) uint16_t avail_dsds; struct dsd64 *cur_dsd; struct req_que *req = NULL; + struct rsp_que *rsp = NULL; struct scsi_qla_host *vha = sp->fcport->vha; struct qla_hw_data *ha = vha->hw; struct qla_qpair *qpair = sp->qpair;
@@ -410,6 +411,7 @@ static inline int qla2x00_start_nvme_mq(srb_t *sp) /* Setup qpair pointers */ req = qpair->req; + rsp = qpair->rsp; tot_dsds = fd->sg_cnt; /* Acquire qpair specific lock */
@@ -571,6 +573,10 @@ static inline int qla2x00_start_nvme_mq(srb_t *sp) /* Set chip new ring index. */ wrt_reg_dword(req->req_q_in, req->ring_index); + if (vha->flags.process_response_queue && + rsp->ring_ptr->signature != RESPONSE_PROCESSED) + qla24xx_process_response_queue(vha, rsp); + queuing_error: spin_unlock_irqrestore(&qpair->qp_lock, flags);
--
2.19.0.rc0