Satish, > Thanks Ole for the quick response. > > We are trying to send messages from a control plane process to VPP process > via memif channel. > This is to program the VPP dataplane tables for our product. > > I see some serialize functions in vppinfra/serialize.h file. Are these the > ones you were referring that can come handy for us ? > If so, I hope, we need to integrate this code onto our control plane process > as well.
You could, but that wasn’t what I was referring to. > Please let me know if my understanding is correct. You currently have the following CP / DP interfaces in VPP: 1) The VPP Binary API I was suggesting you looked at the VPP binary API. For example the file src/vnet/interface.api contains the interface specification. Serialization here is essentially big endian C-structs. Then with a set of language bindings on the CP side. This is quite similar to gRPC. 1a) The VPP binary API with serialized memory structures in shared memory This is above, but combined with the above serialization code for e.g. larger memory structures. Downside is that it doesn’t work with other transports than shared memory. (E.g. unix domain sockets), and that it doesn’t have a specified data model. 2) Punt paths Punting packets from data plane over ‘normal’ interfaces or over Unix domain punt socket with meta data. 3) Counters and statistics over a separate shared memory interface 4) Host stack / VCL. E.g. for TCP control plane applications using VPP’s TCP implementation Are you suggesting to create a new one? Any reason why you couldn’t use 1.? Best regards, Ole
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