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| author | Ariel Levkovich <lariel@mellanox.com> | 2018-05-13 14:33:29 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-05-17 06:32:54 +0300 |
| commit | 20b6563ba164efc1ae24f637cb269bb3a9eb5467 (patch) | |
| tree | d405356a2a17ca4e475d78eab91be06a6c4a9571 /include/uapi/rdma | |
| parent | e822ff213fe60dc539a7e2137a08b04004f8ec25 (diff) | |
| download | linux-20b6563ba164efc1ae24f637cb269bb3a9eb5467.tar.xz | |
IB/uverbs: Expose GRE flow spec to the user-kernel ABI header
Add ib_uverbs_flow_spec_gre to define a rule to match the GRE
encapsulation protocol.
The spec includes the generic specs header, type, size and reserved
fields while the filter itself is defined as ib_uverbs_flow_gre_filter
and includes:
1. Checksum present bit, key present bit and version bits in a single
16bit field.
2. Protocol type field - Indicates the ether protocol type of the
encapsulated payload.
3. Key field - present if key bit is set and contains an application
specific key value.
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>
Diffstat (limited to 'include/uapi/rdma')
| -rw-r--r-- | include/uapi/rdma/ib_user_verbs.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h index 6aeb03315b0b..77c1a9a76e71 100644 --- a/include/uapi/rdma/ib_user_verbs.h +++ b/include/uapi/rdma/ib_user_verbs.h @@ -1033,6 +1033,33 @@ struct ib_uverbs_flow_spec_esp { struct ib_uverbs_flow_spec_esp_filter mask; }; +struct ib_uverbs_flow_gre_filter { + /* c_ks_res0_ver field is bits 0-15 in offset 0 of a standard GRE header: + * bit 0 - C - checksum bit. + * bit 1 - reserved. set to 0. + * bit 2 - key bit. + * bit 3 - sequence number bit. + * bits 4:12 - reserved. set to 0. + * bits 13:15 - GRE version. + */ + __be16 c_ks_res0_ver; + __be16 protocol; + __be32 key; +}; + +struct ib_uverbs_flow_spec_gre { + union { + struct ib_uverbs_flow_spec_hdr hdr; + struct { + __u32 type; + __u16 size; + __u16 reserved; + }; + }; + struct ib_uverbs_flow_gre_filter val; + struct ib_uverbs_flow_gre_filter mask; +}; + struct ib_uverbs_flow_attr { __u32 type; __u16 size; |