* [PATCH for-next] RDMA/hns: Remove the condition of light load for posting DWQE
@ 2021-04-28 7:12 Weihang Li
2021-05-11 19:37 ` Jason Gunthorpe
0 siblings, 1 reply; 2+ messages in thread
From: Weihang Li @ 2021-04-28 7:12 UTC (permalink / raw)
To: dledford, jgg; +Cc: leon, linux-rdma, linuxarm, Yixian Liu, Weihang Li
From: Yixian Liu <liuyixian@huawei.com>
Even in the case of heavy load, direct WQE can still be posted. The
hardware will decide whether to drop the DWQE or not. Thus, the limit needs
to be removed.
Fixes: 01584a5edcc4 ("RDMA/hns: Add support of direct wqe")
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
---
drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index edcfd39..fd546fd 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -791,8 +791,7 @@ static int hns_roce_v2_post_send(struct ib_qp *ibqp,
qp->sq.head += nreq;
qp->next_sge = sge_idx;
- if (nreq == 1 && qp->sq.head == qp->sq.tail + 1 &&
- (qp->en_flags & HNS_ROCE_QP_CAP_DIRECT_WQE))
+ if (nreq == 1 && (qp->en_flags & HNS_ROCE_QP_CAP_DIRECT_WQE))
write_dwqe(hr_dev, qp, wqe);
else
update_sq_db(hr_dev, qp);
--
2.8.1
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH for-next] RDMA/hns: Remove the condition of light load for posting DWQE
2021-04-28 7:12 [PATCH for-next] RDMA/hns: Remove the condition of light load for posting DWQE Weihang Li
@ 2021-05-11 19:37 ` Jason Gunthorpe
0 siblings, 0 replies; 2+ messages in thread
From: Jason Gunthorpe @ 2021-05-11 19:37 UTC (permalink / raw)
To: Weihang Li; +Cc: dledford, leon, linux-rdma, linuxarm, Yixian Liu
On Wed, Apr 28, 2021 at 03:12:30PM +0800, Weihang Li wrote:
> From: Yixian Liu <liuyixian@huawei.com>
>
> Even in the case of heavy load, direct WQE can still be posted. The
> hardware will decide whether to drop the DWQE or not. Thus, the limit needs
> to be removed.
>
> Fixes: 01584a5edcc4 ("RDMA/hns: Add support of direct wqe")
> Signed-off-by: Yixian Liu <liuyixian@huawei.com>
> Signed-off-by: Weihang Li <liweihang@huawei.com>
> ---
> drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
Applied to for-next, thanks
Jason
^ permalink raw reply [flat|nested] 2+ messages in thread
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2021-04-28 7:12 [PATCH for-next] RDMA/hns: Remove the condition of light load for posting DWQE Weihang Li
2021-05-11 19:37 ` Jason Gunthorpe
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