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path: root/drivers/infiniband/hw/mlx5/srq.c
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Diffstat (limited to 'drivers/infiniband/hw/mlx5/srq.c')
-rw-r--r--drivers/infiniband/hw/mlx5/srq.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/infiniband/hw/mlx5/srq.c b/drivers/infiniband/hw/mlx5/srq.c
index a056ea835da5..84be0c3d5699 100644
--- a/drivers/infiniband/hw/mlx5/srq.c
+++ b/drivers/infiniband/hw/mlx5/srq.c
@@ -199,17 +199,20 @@ int mlx5_ib_create_srq(struct ib_srq *ib_srq,
int err;
struct mlx5_srq_attr in = {};
__u32 max_srq_wqes = 1 << MLX5_CAP_GEN(dev->mdev, log_max_srq_sz);
+ __u32 max_sge_sz = MLX5_CAP_GEN(dev->mdev, max_wqe_sz_rq) /
+ sizeof(struct mlx5_wqe_data_seg);
if (init_attr->srq_type != IB_SRQT_BASIC &&
init_attr->srq_type != IB_SRQT_XRC &&
init_attr->srq_type != IB_SRQT_TM)
return -EOPNOTSUPP;
- /* Sanity check SRQ size before proceeding */
- if (init_attr->attr.max_wr >= max_srq_wqes) {
- mlx5_ib_dbg(dev, "max_wr %d, cap %d\n",
- init_attr->attr.max_wr,
- max_srq_wqes);
+ /* Sanity check SRQ and sge size before proceeding */
+ if (init_attr->attr.max_wr >= max_srq_wqes ||
+ init_attr->attr.max_sge > max_sge_sz) {
+ mlx5_ib_dbg(dev, "max_wr %d,wr_cap %d,max_sge %d, sge_cap:%d\n",
+ init_attr->attr.max_wr, max_srq_wqes,
+ init_attr->attr.max_sge, max_sge_sz);
return -EINVAL;
}