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2022-01-11linux-cp: Add VPP->Linux synchronizationPim van Pelt1-0/+37
Part 1 -- notes in https://ipng.ch/s/articles/2021/08/13/vpp-2.html Add the ability for VPP to copy out (sync) its state from the dataplane to Linux Interface Pairs, when they exist. Gated by a configuration flag (linux-cp { lcp-sync }), and by a CLI option to toggle on/off, synchronize the following events: - Interface state changes - Interface MTU changes - Interface IPv4/IPv6 address add/deletion In VPP, subints can have any link state and MTU, orthogonal to their phy. In Linux, setting admin-down on a phy forces its children to be down as well. Also, in Linux, MTU of children must not exceed that of the phy. Add a state synchronizer which walks over phy+subints to ensure Linux and VPP end up in the same consistent state. Part 2 -- notes in https://ipng.ch/s/articles/2021/08/15/vpp-3.html Add the ability for VPP to autocreate sub-interfaces of existing Linux Interface pairs. Gated by a configuration flag (linux-cp { lcp-auto-subint }), and by a CLI option to toggle on/off, synchronize the following event: - Sub-interface creation (dot1q, dot1ad, QinQ and QinAD) A few other changes: - Add two functions into netlink.[ch] to delete ip4 and ip6 addresses. - Remove a spurious logline (printing MTU) in netlink.c. - Resolve a TODO around vnet_sw_interface_supports_addressing() Type: improvement Signed-off-by: Pim van Pelt <pim@ipng.nl> Change-Id: I34fc070e80af4013be58d7a8cbf64296cc760e4e Signed-off-by: Pim van Pelt <pim@ipng.nl>
2021-09-09linux-cp: Complete interface creation logicPim van Pelt1-6/+6
Linux Control Plane interface creation logic is currently only able to create untagged interfaces, and dot1q VLAN sub-interfaces. This change makes it possible to create dot1ad VLAN sub-ints, and Q-in-AD as well as Q-in-Q sub-interfaces as well. It makes the plugin a bit more robust by catching a few common errors, such as creating an lcp on a sub-interface without its parent having one, and creating an lcp on a sub-interface that is not exact-match. This change has a bunch of smaller improvemnets as well. I documented my work in this post: https://ipng.ch/s/articles/2021/08/12/vpp-1.html It shows that after the change is merged, all VPP interface types now create and operate cleanly as LCP interfaces as well. Type: improvement Signed-off-by: Pim van Pelt <pim@ipng.nl> Change-Id: I322669f7316d44c227090b83d6a574fb9c00e76a
2021-02-04linux-cp: Linux Interface Mirroring for Control Plane IntegrationNeale Ranns1-0/+85
Type: feature please see FEATURE.yaml for details. Signed-off-by: Neale Ranns <nranns@cisco.com> Signed-off-by: Matthew Smith <mgsmith@netgate.com> Signed-off-by: Jon Loeliger <jdl@netgate.com> Signed-off-by: Pim van Pelt <pim@ipng.nl> Change-Id: I04a45c15c0838906aa787e06660fa29f39f755fa