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| author | Jan Scheurich <jan.scheurich@ericsson.com> | 2017-08-05 13:41:08 +0800 |
|---|---|---|
| committer | Ben Pfaff <blp@ovn.org> | 2017-08-07 11:26:09 -0700 |
| commit | 3d2fbd70bda514f7327970b859663f34f994290c (patch) | |
| tree | 5a5fb77fbc30f598c56c5af1d666a70bf815a796 /lib/packets.h | |
| parent | 05f282c2e16126577de7704b16f9dd591b927904 (diff) | |
| download | openvswitch-3d2fbd70bda514f7327970b859663f34f994290c.tar.gz | |
userspace: Add support for NSH MD1 match fields
This patch adds support for NSH packet header fields to the OVS
control plane and the userspace datapath. Initially we support the
fields of the NSH base header as defined in
https://www.ietf.org/id/draft-ietf-sfc-nsh-13.txt
and the fixed context headers specified for metadata format MD1.
The variable length MD2 format is parsed but the TLV context headers
are not yet available for matching.
The NSH fields are modelled as experimenter fields with the dedicated
experimenter class 0x005ad650 proposed for NSH in ONF. The following
fields are defined:
NXOXM code ofctl name Size Comment
=====================================================================
NXOXM_NSH_FLAGS nsh_flags 8 Bits 2-9 of 1st NSH word
(0x005ad650,1)
NXOXM_NSH_MDTYPE nsh_mdtype 8 Bits 16-23
(0x005ad650,2)
NXOXM_NSH_NEXTPROTO nsh_np 8 Bits 24-31
(0x005ad650,3)
NXOXM_NSH_SPI nsh_spi 24 Bits 0-23 of 2nd NSH word
(0x005ad650,4)
NXOXM_NSH_SI nsh_si 8 Bits 24-31
(0x005ad650,5)
NXOXM_NSH_C1 nsh_c1 32 Maskable, nsh_mdtype==1
(0x005ad650,6)
NXOXM_NSH_C2 nsh_c2 32 Maskable, nsh_mdtype==1
(0x005ad650,7)
NXOXM_NSH_C3 nsh_c3 32 Maskable, nsh_mdtype==1
(0x005ad650,8)
NXOXM_NSH_C4 nsh_c4 32 Maskable, nsh_mdtype==1
(0x005ad650,9)
Co-authored-by: Johnson Li <johnson.li@intel.com>
Signed-off-by: Yi Yang <yi.y.yang@intel.com>
Signed-off-by: Jan Scheurich <jan.scheurich@ericsson.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
Diffstat (limited to 'lib/packets.h')
| -rw-r--r-- | lib/packets.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/packets.h b/lib/packets.h index 297a8a94a..5083e6a83 100644 --- a/lib/packets.h +++ b/lib/packets.h @@ -25,6 +25,7 @@ #include "openvswitch/geneve.h" #include "openvswitch/packets.h" #include "openvswitch/types.h" +#include "openvswitch/nsh.h" #include "odp-netlink.h" #include "random.h" #include "hash.h" @@ -397,6 +398,7 @@ ovs_be32 set_mpls_lse_values(uint8_t ttl, uint8_t tc, uint8_t bos, #define ETH_TYPE_RARP 0x8035 #define ETH_TYPE_MPLS 0x8847 #define ETH_TYPE_MPLS_MCAST 0x8848 +#define ETH_TYPE_NSH 0x894f static inline bool eth_type_mpls(ovs_be16 eth_type) { @@ -1298,6 +1300,7 @@ enum packet_type { PT_IPV6 = PACKET_TYPE(OFPHTN_ETHERTYPE, ETH_TYPE_IPV6), PT_MPLS = PACKET_TYPE(OFPHTN_ETHERTYPE, ETH_TYPE_MPLS), PT_MPLS_MC = PACKET_TYPE(OFPHTN_ETHERTYPE, ETH_TYPE_MPLS_MCAST), + PT_NSH = PACKET_TYPE(OFPHTN_ETHERTYPE, ETH_TYPE_NSH), PT_UNKNOWN = PACKET_TYPE(0xffff, 0xffff), /* Unknown packet type. */ }; |