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authorYi Yang <yi.y.yang@intel.com>2017-08-28 21:43:23 +0200
committerDavid S. Miller <davem@davemloft.net>2017-08-29 15:16:52 -0700
commit1f0b7744c50573df464ca33d8e5275be509f852b (patch)
tree8927f991dd7cfb7c4477f8ec664a102127a5f37a /net/nsh
parentfa20e0e32cb3dfc1760b6254b64977f2fb5bd851 (diff)
downloadlinux-1f0b7744c50573df464ca33d8e5275be509f852b.tar.bz2
net: add NSH header structures and helpers
NSH (Network Service Header)[1] is a new protocol for service function chaining, it can be handled as a L3 protocol like IPv4 and IPv6, Eth + NSH + Inner packet or VxLAN-gpe + NSH + Inner packet are two typical use cases. This patch adds NSH header structures and helpers for NSH GSO support and Open vSwitch NSH support. [1] https://datatracker.ietf.org/doc/draft-ietf-sfc-nsh/ [Jiri: added nsh_hdr() helper and renamed the header struct to "struct nshhdr" to match the usual pattern. Removed packet type defines, these are now shared with VXLAN-GPE.] Signed-off-by: Yi Yang <yi.y.yang@intel.com> Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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