From 0354d2461f2d88b8f8617c27f322183d0730994d Mon Sep 17 00:00:00 2001 From: sephe Date: Thu, 18 Feb 2016 04:58:34 +0000 Subject: tcp/lro: Allow drivers to set the TCP ACK/data segment aggregation limit ACK aggregation limit is append count based, while the TCP data segment aggregation limit is length based. Unless the network driver sets these two limits, it's an NO-OP. Reviewed by: adrian, gallatin (previous version), hselasky (previous version) Approved by: adrian (mentor) MFC after: 1 week Sponsored by: Microsoft OSTC Differential Revision: https://reviews.freebsd.org/D5185 --- sys/netinet/tcp_lro.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'sys/netinet/tcp_lro.h') diff --git a/sys/netinet/tcp_lro.h b/sys/netinet/tcp_lro.h index 48c679d..3fc627c 100644 --- a/sys/netinet/tcp_lro.h +++ b/sys/netinet/tcp_lro.h @@ -91,11 +91,16 @@ struct lro_ctrl { unsigned lro_cnt; unsigned lro_mbuf_count; unsigned lro_mbuf_max; + unsigned short lro_ackcnt_lim; /* max # of aggregated ACKs */ + unsigned lro_length_lim; /* max len of aggregated data */ struct lro_head lro_active; struct lro_head lro_free; }; +#define TCP_LRO_LENGTH_MAX 65535 +#define TCP_LRO_ACKCNT_MAX 65535 /* unlimited */ + int tcp_lro_init(struct lro_ctrl *); int tcp_lro_init_args(struct lro_ctrl *, struct ifnet *, unsigned, unsigned); void tcp_lro_free(struct lro_ctrl *); -- cgit v1.1