diff options
author | Weihang Li <liweihang@huawei.com> | 2020-08-19 17:39:44 +0800 |
---|---|---|
committer | Jason Gunthorpe <jgg@nvidia.com> | 2020-08-20 08:35:19 -0300 |
commit | 6da06c6291f38be4df6df2efb76ba925096d2691 (patch) | |
tree | 75e530cb8f8b2db00783232bcfa5f96f5e61a4ab /drivers/infiniband/hw/hns/hns_roce_hw_v2.c | |
parent | b25e8e85e75a61af1ddc88c4798387dd3132dd43 (diff) |
Revert "RDMA/hns: Reserve one sge in order to avoid local length error"
This patch caused some issues on SEND operation, and it should be reverted
to make the drivers work correctly. There will be a better solution that
has been tested carefully to solve the original problem.
This reverts commit 711195e57d341e58133d92cf8aaab1db24e4768d.
Fixes: 711195e57d34 ("RDMA/hns: Reserve one sge in order to avoid local length error")
Link: https://lore.kernel.org/r/1597829984-20223-1-git-send-email-liweihang@huawei.com
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/hw/hns/hns_roce_hw_v2.c')
-rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index d2968594664b..4cda95ed1fbe 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -633,7 +633,7 @@ static int hns_roce_v2_post_recv(struct ib_qp *ibqp, wqe_idx = (hr_qp->rq.head + nreq) & (hr_qp->rq.wqe_cnt - 1); - if (unlikely(wr->num_sge >= hr_qp->rq.max_gs)) { + if (unlikely(wr->num_sge > hr_qp->rq.max_gs)) { ibdev_err(ibdev, "rq:num_sge=%d >= qp->sq.max_gs=%d\n", wr->num_sge, hr_qp->rq.max_gs); ret = -EINVAL; @@ -653,7 +653,6 @@ static int hns_roce_v2_post_recv(struct ib_qp *ibqp, if (wr->num_sge < hr_qp->rq.max_gs) { dseg->lkey = cpu_to_le32(HNS_ROCE_INVALID_LKEY); dseg->addr = 0; - dseg->len = cpu_to_le32(HNS_ROCE_INVALID_SGE_LENGTH); } /* rq support inline data */ @@ -787,8 +786,8 @@ static int hns_roce_v2_post_srq_recv(struct ib_srq *ibsrq, } if (wr->num_sge < srq->max_gs) { - dseg[i].len = cpu_to_le32(HNS_ROCE_INVALID_SGE_LENGTH); - dseg[i].lkey = cpu_to_le32(HNS_ROCE_INVALID_LKEY); + dseg[i].len = 0; + dseg[i].lkey = cpu_to_le32(0x100); dseg[i].addr = 0; } @@ -5070,7 +5069,7 @@ static int hns_roce_v2_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr) attr->srq_limit = limit_wl; attr->max_wr = srq->wqe_cnt - 1; - attr->max_sge = srq->max_gs - HNS_ROCE_RESERVED_SGE; + attr->max_sge = srq->max_gs; out: hns_roce_free_cmd_mailbox(hr_dev, mailbox); |