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{net,IB}/mlx5: Add has_tag to mlx5_flow_act

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The has_tag member will indicate whether a tag action was specified
in flow specification.

A flow tag 0 = MLX5_FS_DEFAULT_FLOW_TAG is assumed a valid flow tag
that is currently used by mlx5 RDMA driver, whereas in HW flow_tag = 0
means that the user doesn't care about flow_tag.  HW always provide
a flow_tag = 0 if all flow tags requested on a specific flow are 0.

So we need a way (in the driver) to differentiate between a user really
requesting flow_tag = 0 and a user who does not care, in order to be
able to report conflicting flow tags on a specific flow.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Matan Barak
2017-08-16 09:43:48 +03:00
committed by Saeed Mahameed
parent 075572d4b7
commit a9db0ecf15
4 changed files with 5 additions and 2 deletions
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include/linux/mlx5/fs.h
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@@ -141,6 +141,7 @@ void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
struct mlx5_flow_act {
u32 action;
bool has_flow_tag;
u32 flow_tag;
u32 encap_id;
u32 modify_id;