[ovs-git] [ovn-org/ovn] 24ac0a: Add VXLAN support for non-VTEP datapath bindings
noreply at github.com
Thu Sep 17 07:12:17 UTC 2020
Author: Ihar Hrachyshka <ihrachys at redhat.com>
Date: 2020-09-17 (Thu, 17 Sep 2020)
Add VXLAN support for non-VTEP datapath bindings
Because of limited space in VXLAN VNI to pass over all three of -
datapath id, ingress port, egress port - the implementation ignores
ingress; and splits the remaining 24 bits of VNI into two chunks, 12
bits each - one for datapath and one for egress port.
This also bumps priority for ramp switch flows to 110 to prioritize
them over regular non-ramp VXLAN flows.
Limitations: because ingress port is not passed, ACLs that rely on it
won't work with VXLAN; reduced number of networks and ports per
network (max 4096 for both).
NB consumers may use NB_Global options:max_tunid to determine maximum
capacity for logical switches supported by the setup.
Renamed MLF_RCV_FROM_VXLAN_BIT into MLF_RCV_FROM_RAMP_BIT to reflect
the new use case.
Added test scenarios that ping through VXLAN tunnel between two
hypervisors added. Also max_tunid is validated.
Signed-off-by: Ihar Hrachyshka <ihrachys at redhat.com>
Signed-off-by: Numan Siddique <numans at ovn.org>
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