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path: root/src/vnet/gre/packet.h
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2018-03-01Fix ERSPAN encap to set EN bits in the header and add test caseJohn Lo1-0/+3
For ERSPAN encap, both bits in the EN field of the header should be set to indicate any VLAN tag in the original Ethernet frame is preserved. Added SPAN L2 test case where the mirrored packet output is a GRE ERSPAN tunnel. Change-Id: Ie7a40992a9278469c24aa6fa9e122b4505797d10 Signed-off-by: John Lo <loj@cisco.com>
2018-02-15Optimize GRE Tunnel and add support for ERSPAN encapJohn Lo1-0/+106
Change GRE tunnel to use the interface type where the same encap node is used as output node for all GRE tunnels, instead of having dedicated output and tx node for each tunnel. This allows for more efficient tunnel creation and deletion at scale tested at 1000's of GRE tunnels. Add support for ERSPAN encap as another tunnel type, in addition to the existing L3 and TEB types. The GRE ERSPAN encap supported is type 2 thus GRE encap need to include sequence number and GRE- ERSPAN tunnel can be created with user secified ERSPAN session ID. The GRE tunnel lookup hash key is updated to inclue tunnel type and session ID, in addition to SIP/DIP and FIB index. Thus, GRE-ERSPAN tunnel can be created, with the appropriate session ID, to be used as output interface for SPAN config to send mirrored packets. Change interface naming so that all GRE tunnels, irrespective of tunnel type, uses "greN" where N is the instance number. Removed interface reuse on tunnel creation and deletion to enable unfied tunnel interface name. Add support of user specified instance on GRE tunnel creation. Thus, N in the "greN" interface name can optionally be specified by user via CLI/API. Optimize GRE tunnel encap DPO stacking to bypass load-balance DPO node since packet output on GRE tunnel always belong to the same flow after 5-tupple hash. Change-Id: Ifa83915744a1a88045c998604777cc3583f4da52 Signed-off-by: John Lo <loj@cisco.com>
2017-11-27VPP-253 Coding standards cleanup - vnet/vnet/greSwarup Nayak1-2/+12
Change-Id: I95f98b91faf74178c05f30da9eb3d6125193b7ef Signed-off-by: Swarup Nayak <swarupnpvt@gmail.com>
2016-12-28Reorganize source tree to use single autotools instanceDamjan Marion1-0/+55
Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23 Signed-off-by: Damjan Marion <damarion@cisco.com>