rpc_max_payload - Get maximum payload size for a transport, in bytes
size_t rpc_max_payload(struct rpc_clnt * clnt);
For stream transports, this is one RPC record fragment (see RFC 1831), as we don't support multi-record requests yet. For datagram transports, this is the size of an IP packet minus the IP, UDP, and RPC header sizes.
|January 2017||Kernel Hackers Manual 4.8.|