From: Mustafa Ismail <mustafa.ismail@xxxxxxxxx>
If RTR WQE is posted and QP is flushed, a CQE is
incorrectly generated for the RTR WQE. Add code
to look for the RTR and not generate a CQE when
QP is flushed.
Signed-off-by: Mustafa Ismail <mustafa.ismail@xxxxxxxxx>
Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@xxxxxxxxx>
---
providers/i40iw/i40iw_uk.c | 12 ++++++++++++
providers/i40iw/i40iw_user.h | 1 +
2 files changed, 13 insertions(+)
diff --git a/providers/i40iw/i40iw_uk.c b/providers/i40iw/i40iw_uk.c
index ea3255f7..4c7e5cff 100644
--- a/providers/i40iw/i40iw_uk.c
+++ b/providers/i40iw/i40iw_uk.c
@@ -829,6 +829,17 @@ static enum i40iw_status_code i40iw_cq_poll_completion(struct i40iw_cq_uk *cq,
I40IW_RING_SET_TAIL(qp->rq_ring, array_idx + 1);
pring = &qp->rq_ring;
} else {
+ if (qp->first_sq_wq) {
+ qp->first_sq_wq = false;
+ if (!wqe_idx && (qp->sq_ring.head == qp->sq_ring.tail)) {
+ I40IW_RING_MOVE_HEAD_NOCHECK(cq->cq_ring);
+ I40IW_RING_MOVE_TAIL(cq->cq_ring);
+ set_64bit_val(cq->shadow_area, I40IW_BYTE_0,
+ I40IW_RING_GETCURRENT_HEAD(cq->cq_ring));
+ memset(info, 0, sizeof(struct i40iw_cq_poll_info));
+ return i40iw_cq_poll_completion(cq, info);
+ }
+ }
if (info->comp_status != I40IW_COMPL_STATUS_FLUSHED) {
info->wr_id = qp->sq_wrtrk_array[wqe_idx].wrid;
@@ -997,6 +1008,7 @@ enum i40iw_status_code i40iw_qp_uk_init(struct i40iw_qp_uk *qp,
I40IW_RING_MOVE_TAIL(qp->sq_ring);
I40IW_RING_MOVE_HEAD(qp->initial_ring, ret_code);
qp->swqe_polarity = 1;
+ qp->first_sq_wq = true;
qp->swqe_polarity_deferred = 1;
qp->rwqe_polarity = 0;
diff --git a/providers/i40iw/i40iw_user.h b/providers/i40iw/i40iw_user.h
index 1e95c23a..7bceca43 100644
--- a/providers/i40iw/i40iw_user.h
+++ b/providers/i40iw/i40iw_user.h
@@ -382,6 +382,7 @@ struct i40iw_qp_uk {
u8 rwqe_polarity;
u8 rq_wqe_size;
u8 rq_wqe_size_multiplier;
+ bool first_sq_wq;
bool deferred_flag;
};
--
2.14.2
--
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