Commit 0d86bbec authored May 13, 2018 by Ariel Levkovich Committed by Jason Gunthorpe May 16, 2018

IB/uverbs: Expose MPLS flow spec to the user-kernel ABI header



Add ib_uverbs_flow_spec_mpls to define a rule to match the MPLS
protocol.

The spec includes the generic specs header, type, size and reserved
fields while the filter itself is defined as ib_uverbs_flow_mpls_filter
and includes a single 32bit field named 'label' which consists of:
Bits 0:19  - The MPLS label.
Bits 20:22 - Traffic class field.
Bit  23    - Bottom of stack bit.
Bits 24:31 - Time to live (TTL) field.

Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Ariel Levkovich <lariel@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

parent d90e5e50

include/uapi/rdma/ib_user_verbs.h

+23 −0

Original line number	Diff line number	Diff line
		@@ -1060,6 +1060,29 @@ struct ib_uverbs_flow_spec_gre {
		struct ib_uverbs_flow_gre_filter mask;
		};

		struct ib_uverbs_flow_mpls_filter {
		/* The field includes the entire MPLS label:
		* bits 0:19 - label field.
		* bits 20:22 - traffic class field.
		* bits 23 - bottom of stack bit.
		* bits 24:31 - ttl field.
		*/
		__be32 label;
		};

		struct ib_uverbs_flow_spec_mpls {
		union {
		struct ib_uverbs_flow_spec_hdr hdr;
		struct {
		__u32 type;
		__u16 size;
		__u16 reserved;
		};
		};
		struct ib_uverbs_flow_mpls_filter val;
		struct ib_uverbs_flow_mpls_filter mask;
		};

		struct ib_uverbs_flow_attr {
		__u32 type;
		__u16 size;