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authorLeon Romanovsky <leonro@mellanox.com>2018-12-10 11:19:49 +0200
committerJason Gunthorpe <jgg@mellanox.com>2018-12-11 14:38:16 -0700
commita1462351b590a4fa8eed6e5bf14245425635be0d (patch)
treee10d6a0c0b612aecd0614340db6ac3d9e11c2ad7
parentf94e02ddfd88a511ed64fb68905e35d727635fea (diff)
downloadlinux-a1462351b590a4fa8eed6e5bf14245425635be0d.tar.bz2
RDMA/mlx5: Fail early if user tries to create flows on IB representors
IB representors don't support creation of RAW ethernet QP flows. Disable them by reusing existing RDMA/core support macros. We do it for both creation and matcher because latter is not usable if no flow creation is available. Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
-rw-r--r--drivers/infiniband/hw/mlx5/flow.c16
-rw-r--r--include/rdma/uverbs_ioctl.h9
2 files changed, 17 insertions, 8 deletions
diff --git a/drivers/infiniband/hw/mlx5/flow.c b/drivers/infiniband/hw/mlx5/flow.c
index b73756bd38bd..b840d4eeba84 100644
--- a/drivers/infiniband/hw/mlx5/flow.c
+++ b/drivers/infiniband/hw/mlx5/flow.c
@@ -134,8 +134,6 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_CREATE_FLOW)(
return -EINVAL;
flow_act.action |= MLX5_FLOW_CONTEXT_ACTION_COUNT;
}
- if (dev->rep)
- return -ENOTSUPP;
if (dest_type == MLX5_FLOW_DESTINATION_TYPE_TIR &&
fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_EGRESS)
@@ -623,9 +621,19 @@ DECLARE_UVERBS_NAMED_OBJECT(MLX5_IB_OBJECT_FLOW_MATCHER,
&UVERBS_METHOD(MLX5_IB_METHOD_FLOW_MATCHER_CREATE),
&UVERBS_METHOD(MLX5_IB_METHOD_FLOW_MATCHER_DESTROY));
+static bool flow_is_supported(struct ib_device *device)
+{
+ return !to_mdev(device)->rep;
+}
+
const struct uapi_definition mlx5_ib_flow_defs[] = {
- UAPI_DEF_CHAIN_OBJ_TREE_NAMED(MLX5_IB_OBJECT_FLOW_MATCHER),
- UAPI_DEF_CHAIN_OBJ_TREE(UVERBS_OBJECT_FLOW, &mlx5_ib_fs),
+ UAPI_DEF_CHAIN_OBJ_TREE_NAMED(
+ MLX5_IB_OBJECT_FLOW_MATCHER,
+ UAPI_DEF_IS_OBJ_SUPPORTED(flow_is_supported)),
+ UAPI_DEF_CHAIN_OBJ_TREE(
+ UVERBS_OBJECT_FLOW,
+ &mlx5_ib_fs,
+ UAPI_DEF_IS_OBJ_SUPPORTED(flow_is_supported)),
UAPI_DEF_CHAIN_OBJ_TREE(UVERBS_OBJECT_FLOW_ACTION,
&mlx5_ib_flow_actions),
{},
diff --git a/include/rdma/uverbs_ioctl.h b/include/rdma/uverbs_ioctl.h
index 2f56844fb7da..7f83265f6298 100644
--- a/include/rdma/uverbs_ioctl.h
+++ b/include/rdma/uverbs_ioctl.h
@@ -454,15 +454,16 @@ struct uapi_definition {
}
/* Temporary until the tree base description is replaced */
-#define UAPI_DEF_CHAIN_OBJ_TREE(_object_enum, _object_ptr) \
+#define UAPI_DEF_CHAIN_OBJ_TREE(_object_enum, _object_ptr, ...) \
{ \
.kind = UAPI_DEF_CHAIN_OBJ_TREE, \
.object_start = { .object_id = _object_enum }, \
.chain_obj_tree = _object_ptr, \
- }
-#define UAPI_DEF_CHAIN_OBJ_TREE_NAMED(_object_enum, ...) \
- UAPI_DEF_CHAIN_OBJ_TREE(_object_enum, &UVERBS_OBJECT(_object_enum)), \
+ }, \
##__VA_ARGS__
+#define UAPI_DEF_CHAIN_OBJ_TREE_NAMED(_object_enum, ...) \
+ UAPI_DEF_CHAIN_OBJ_TREE(_object_enum, &UVERBS_OBJECT(_object_enum), \
+ ##__VA_ARGS__)
/*
* =======================================