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authorMatan Barak <matanb@mellanox.com>2015-12-15 20:30:09 +0200
committerDoug Ledford <dledford@redhat.com>2015-12-23 23:23:02 -0500
commit972ecb82137949be9649c7184782d00ff102a212 (patch)
tree7a550f118072c62cdb10aca4acd2829da67d0081
parent145d9c5410324a6f64d8847f115e5f4fdfddce39 (diff)
IB/mlx5: Add create_cq extended command
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@mellanox.com> Reviewed-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
-rw-r--r--drivers/infiniband/hw/mlx5/cq.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c
index db2270ad21b2..bc21ad8ebffd 100644
--- a/drivers/infiniband/hw/mlx5/cq.c
+++ b/drivers/infiniband/hw/mlx5/cq.c
@@ -757,6 +757,10 @@ 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,
@@ -780,6 +784,9 @@ 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);