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authorMarcelo Ricardo Leitner <marcelo.leitner@gmail.com>2016-04-13 00:11:31 +0300
committerDavid S. Miller <davem@davemloft.net>2016-04-15 04:40:24 +0300
commit486bdee0134cf21c3714ded809d5933d2b8dfb81 (patch)
treeb22d8924cc7cfdf4126dc5466c844ea69bb60e0e /net/sctp
parentd21fd63ea3856208c3a1cb9b26d81898a2ccf71b (diff)
downloadlinux-486bdee0134cf21c3714ded809d5933d2b8dfb81.tar.xz
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 <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp')
-rw-r--r--net/sctp/inqueue.c3
-rw-r--r--net/sctp/socket.c3
2 files changed, 6 insertions, 0 deletions
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);