From 486bdee0134cf21c3714ded809d5933d2b8dfb81 Mon Sep 17 00:00:00 2001 From: Marcelo Ricardo Leitner Date: Tue, 12 Apr 2016 18:11:31 -0300 Subject: [PATCH] sctp: add support for RPS and RFS This patch adds what's missing to properly support RPS and RFS on SCTP, as some of it is already implemented in common calls. Having support for RPS and RFS allows better scaling specially because not all NICs support hashing SCTP headers. Save the hash right when we dequeue a skb from inqueue so we do it only once per skb instead of per chunk. New sockets will then inherit the hash through sctp_copy_sock(). Signed-off-by: Marcelo Ricardo Leitner Signed-off-by: David S. Miller --- net/sctp/inqueue.c | 3 +++ net/sctp/socket.c | 3 +++ 2 files changed, 6 insertions(+) diff --git a/net/sctp/inqueue.c b/net/sctp/inqueue.c index 7e8a16c77039..b335ffcef0b9 100644 --- a/net/sctp/inqueue.c +++ b/net/sctp/inqueue.c @@ -163,6 +163,9 @@ struct sctp_chunk *sctp_inq_pop(struct sctp_inq *queue) chunk->singleton = 1; ch = (sctp_chunkhdr_t *) chunk->skb->data; chunk->data_accepted = 0; + + if (chunk->asoc) + sock_rps_save_rxhash(chunk->asoc->base.sk, chunk->skb); } chunk->chunk_hdr = ch; diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 878d28eda1a6..36697f85ce48 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -6430,6 +6430,8 @@ unsigned int sctp_poll(struct file *file, struct socket *sock, poll_table *wait) poll_wait(file, sk_sleep(sk), wait); + sock_rps_record_flow(sk); + /* A TCP-style listening socket becomes readable when the accept queue * is not empty. */ @@ -7186,6 +7188,7 @@ void sctp_copy_sock(struct sock *newsk, struct sock *sk, newsk->sk_lingertime = sk->sk_lingertime; newsk->sk_rcvtimeo = sk->sk_rcvtimeo; newsk->sk_sndtimeo = sk->sk_sndtimeo; + newsk->sk_rxhash = sk->sk_rxhash; newinet = inet_sk(newsk);