From 0d86bbec71b283803f844b35d50dba977be2db4a Mon Sep 17 00:00:00 2001 From: Ariel Levkovich Date: Sun, 13 May 2018 14:33:31 +0300 Subject: [PATCH] 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 Signed-off-by: Ariel Levkovich Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- include/uapi/rdma/ib_user_verbs.h | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h index 77c1a9a76e71..409507f83b91 100644 --- a/include/uapi/rdma/ib_user_verbs.h +++ b/include/uapi/rdma/ib_user_verbs.h @@ -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; -- 2.11.0