[PATCH rdma-rc 05/10] IB/mlx5: Fix returned values of query QP

Leon Romanovsky
2016-06-04T12:15:32Z

From: Noa Osherovich <noaos-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>

Some variables were not initialized properly: max_recv_wr,
max_recv_sge, max_send_wr, qp_context and max_inline_data.

Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB...')
Signed-off-by: Noa Osherovich <noaos-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Signed-off-by: Leon Romanovsky <leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
---
drivers/infiniband/hw/mlx5/qp.c | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 5041176..43c1441 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -235,6 +235,8 @@ static int set_rq_size(struct mlx5_ib_dev *dev, struct ib_qp_cap *cap,
qp->rq.max_gs = 0;
qp->rq.wqe_cnt = 0;
qp->rq.wqe_shift = 0;
+ cap->max_recv_wr = 0;
+ cap->max_recv_sge = 0;
} else {
if (ucmd) {
qp->rq.wqe_cnt = ucmd->rq_wqe_count;
@@ -4079,17 +4081,19 @@ int mlx5_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr,
qp_attr->cap.max_recv_sge = qp->rq.max_gs;

if (!ibqp->uobject) {
- qp_attr->cap.max_send_wr = qp->sq.wqe_cnt;
+ qp_attr->cap.max_send_wr = qp->sq.max_post;
qp_attr->cap.max_send_sge = qp->sq.max_gs;
+ qp_init_attr->qp_context = ibqp->qp_context;
} else {
qp_attr->cap.max_send_wr = 0;
qp_attr->cap.max_send_sge = 0;
}

- /* We don't support inline sends for kernel QPs (yet), and we
- * don't know what userspace's value should be.
- */
- qp_attr->cap.max_inline_data = 0;
+ qp_init_attr->qp_type = ibqp->qp_type;
+ qp_init_attr->recv_cq = ibqp->recv_cq;
+ qp_init_attr->send_cq = ibqp->send_cq;
+ qp_init_attr->srq = ibqp->srq;
+ qp_attr->cap.max_inline_data = qp->max_inline_data;

qp_init_attr->cap = qp_attr->cap;