UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

IB/mlx5: Allow scatter to CQE without global signaled WRs 

Requester scatter to CQE is restricted to QPs configured to signal
all WRs.

This patch adds ability to enable scatter to cqe (force enable)
in the requester without sig_all, for users who do not want all WRs
signaled but rather just the ones whose data found in the CQE.

Signed-off-by: Yonatan Cohen <yonatanc@mellanox.com>
Reviewed-by: Guy Levi <guyle@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Yonatan Cohen 2018-10-09 12:05:15 +03:00 committed by Doug Ledford
parent 2e43bb31b8
commit 6f4bc0ea68
2 changed files with 12 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/infiniband/hw/mlx5/qp.c
View File

@ -1706,15 +1706,20 @@ static void configure_responder_scat_cqe(struct ib_qp_init_attr *init_attr,
static void configure_requester_scat_cqe(struct mlx5_ib_dev *dev,
struct ib_qp_init_attr *init_attr,
struct mlx5_ib_create_qp *ucmd,
void *qpc)
{
enum ib_qp_type qpt = init_attr->qp_type;
int scqe_sz;
bool allow_scat_cqe = 0;
if (qpt == IB_QPT_UC || qpt == IB_QPT_UD)
return;
if (init_attr->sq_sig_type != IB_SIGNAL_ALL_WR)
if (ucmd)
allow_scat_cqe = ucmd->flags & MLX5_QP_FLAG_ALLOW_SCATTER_CQE;
if (!allow_scat_cqe && init_attr->sq_sig_type != IB_SIGNAL_ALL_WR)
return;
scqe_sz = mlx5_ib_get_cqe_size(init_attr->send_cq);
@ -1836,7 +1841,8 @@ static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd,
MLX5_QP_FLAG_TUNNEL_OFFLOADS |
MLX5_QP_FLAG_BFREG_INDEX |
MLX5_QP_FLAG_TYPE_DCT |
MLX5_QP_FLAG_TYPE_DCI))
MLX5_QP_FLAG_TYPE_DCI |
MLX5_QP_FLAG_ALLOW_SCATTER_CQE))
return -EINVAL;
err = get_qp_user_index(to_mucontext(pd->uobject->context),
@ -1971,7 +1977,9 @@ static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd,
if (qp->scat_cqe && is_connected(init_attr->qp_type)) {
configure_responder_scat_cqe(init_attr, qpc);
configure_requester_scat_cqe(dev, init_attr, qpc);
configure_requester_scat_cqe(dev, init_attr,
(pd && pd->uobject) ? &ucmd : NULL,
qpc);
}
if (qp->rq.wqe_cnt) {

1
include/uapi/rdma/mlx5-abi.h
View File

@ -47,6 +47,7 @@ enum {
MLX5_QP_FLAG_TYPE_DCI = 1 << 5,
MLX5_QP_FLAG_TIR_ALLOW_SELF_LB_UC = 1 << 6,
MLX5_QP_FLAG_TIR_ALLOW_SELF_LB_MC = 1 << 7,
MLX5_QP_FLAG_ALLOW_SCATTER_CQE = 1 << 8,
};
enum {