In order to create a CQ that supports timestamp, mlx5 needs to
support the extended create CQ command with the timestamp flag.
Signed-off-by: Matan Barak <matanb@xxxxxxxxxxxx>
Reviewed-by: Eli Cohen <eli@xxxxxxxxxxxx>
---
drivers/infiniband/hw/mlx5/cq.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c
index 3dfd287..186debf 100644
--- a/drivers/infiniband/hw/mlx5/cq.c
+++ b/drivers/infiniband/hw/mlx5/cq.c
@@ -743,6 +743,10 @@ static void destroy_cq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *cq)
mlx5_db_free(dev->mdev, &cq->db);
}
+enum {
+ CQ_CREATE_FLAGS_SUPPORTED = IB_CQ_FLAGS_TIMESTAMP_COMPLETION
+};
+
struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev,
const struct ib_cq_init_attr *attr,
struct ib_ucontext *context,
@@ -766,6 +770,9 @@ struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev,
if (entries < 0)
return ERR_PTR(-EINVAL);
+ if (attr->flags & ~CQ_CREATE_FLAGS_SUPPORTED)
+ return ERR_PTR(-EOPNOTSUPP);
+
entries = roundup_pow_of_two(entries + 1);
if (entries > (1 << MLX5_CAP_GEN(dev->mdev, log_max_cq_sz)))
return ERR_PTR(-EINVAL);
--
2.1.0
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