diff options
Diffstat (limited to 'sys/netinet/tcp_sack.c')
| -rw-r--r-- | sys/netinet/tcp_sack.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/sys/netinet/tcp_sack.c b/sys/netinet/tcp_sack.c index f8d983da723b..a28bb40a8332 100644 --- a/sys/netinet/tcp_sack.c +++ b/sys/netinet/tcp_sack.c @@ -130,10 +130,16 @@ VNET_DECLARE(struct uma_zone *, sack_hole_zone); SYSCTL_NODE(_net_inet_tcp, OID_AUTO, sack, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, "TCP SACK"); + VNET_DEFINE(int, tcp_do_sack) = 1; -#define V_tcp_do_sack VNET(tcp_do_sack) SYSCTL_INT(_net_inet_tcp_sack, OID_AUTO, enable, CTLFLAG_VNET | CTLFLAG_RW, - &VNET_NAME(tcp_do_sack), 0, "Enable/Disable TCP SACK support"); + &VNET_NAME(tcp_do_sack), 0, + "Enable/Disable TCP SACK support"); + +VNET_DEFINE(int, tcp_do_newsack) = 1; +SYSCTL_INT(_net_inet_tcp_sack, OID_AUTO, revised, CTLFLAG_VNET | CTLFLAG_RW, + &VNET_NAME(tcp_do_newsack), 0, + "Use revised SACK loss recovery per RFC 6675"); VNET_DEFINE(int, tcp_sack_maxholes) = 128; SYSCTL_INT(_net_inet_tcp_sack, OID_AUTO, maxholes, CTLFLAG_VNET | CTLFLAG_RW, @@ -826,7 +832,7 @@ tcp_sack_partialack(struct tcpcb *tp, struct tcphdr *th) * the trailing packets of a window are lost and no further data * is available for sending. */ - if ((V_tcp_do_rfc6675_pipe) && + if ((V_tcp_do_newsack) && SEQ_LT(th->th_ack, tp->snd_recover) && (tp->snd_recover == tp->snd_max) && TAILQ_EMPTY(&tp->snd_holes) && |