diff options
Diffstat (limited to 'net/sctp/transport.c')
| -rw-r--r-- | net/sctp/transport.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/net/sctp/transport.c b/net/sctp/transport.c index 721eeebfcd8a..04b6dd1a07de 100644 --- a/net/sctp/transport.c +++ b/net/sctp/transport.c @@ -452,17 +452,18 @@ void sctp_transport_raise_cwnd(struct sctp_transport *transport, * chunks acknowledged by the new Cumulative TSN Ack and by * Gap Ack Blocks. * - * When partial_bytes_acked is equal to or greater than cwnd - * and before the arrival of the SACK the sender had cwnd or - * more bytes of data outstanding (i.e., before arrival of the - * SACK, flightsize was greater than or equal to cwnd), - * increase cwnd by MTU, and reset partial_bytes_acked to - * (partial_bytes_acked - cwnd). + * When partial_bytes_acked is equal to or greater than + * cwnd and before the arrival of the SACK the sender + * had cwnd or more bytes of data outstanding (i.e., + * before arrival of the SACK, flightsize was greater + * than or equal to cwnd), partial_bytes_acked is reset + * to (partial_bytes_acked - cwnd). Next, cwnd is + * increased by MTU. (RFC 4960 Errata 3.12) */ pba += bytes_acked; if (pba >= cwnd) { + pba = pba - cwnd; cwnd += pmtu; - pba = ((cwnd < pba) ? (pba - cwnd) : 0); } pr_debug("%s: congestion avoidance: transport:%p, " |