Date: Sat, 20 Feb 2021 19:23:44 GMT From: Richard Scheffenegger <rscheff@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: a8e431e1537d - main - PRR: use accurate rfc6675_pipe when enabled Message-ID: <202102201923.11KJNi8R052445@gitrepo.freebsd.org>
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The branch main has been updated by rscheff: URL: https://cgit.FreeBSD.org/src/commit/?id=a8e431e1537d056a3f9e466eaceec28c399c220b commit a8e431e1537d056a3f9e466eaceec28c399c220b Author: Richard Scheffenegger <rscheff@FreeBSD.org> AuthorDate: 2021-02-20 19:10:00 +0000 Commit: Richard Scheffenegger <rscheff@FreeBSD.org> CommitDate: 2021-02-20 19:11:48 +0000 PRR: use accurate rfc6675_pipe when enabled Reviewed By: #transport, tuexen MFC after: 2 weeks Sponsored by: NetApp, Inc. Differential Revision: https://reviews.freebsd.org/D28816 --- sys/netinet/tcp_input.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/sys/netinet/tcp_input.c b/sys/netinet/tcp_input.c index 39039fe5b9a3..59a5a2d6bf34 100644 --- a/sys/netinet/tcp_input.c +++ b/sys/netinet/tcp_input.c @@ -2579,8 +2579,11 @@ tcp_do_segment(struct mbuf *m, struct tcphdr *th, struct socket *so, * estimate to be in the network. */ del_data = tp->sackhint.delivered_data; - pipe = (tp->snd_nxt - tp->snd_fack) + - tp->sackhint.sack_bytes_rexmit; + if (V_tcp_do_rfc6675_pipe) + pipe = tcp_compute_pipe(tp); + else + pipe = (tp->snd_nxt - tp->snd_fack) + + tp->sackhint.sack_bytes_rexmit; tp->sackhint.prr_delivered += del_data; if (pipe > tp->snd_ssthresh) { if (tp->sackhint.recover_fs == 0) @@ -3960,7 +3963,10 @@ tcp_prr_partialack(struct tcpcb *tp, struct tcphdr *th) if (SEQ_GEQ(th->th_ack, tp->snd_una)) del_data = BYTES_THIS_ACK(tp, th); del_data += tp->sackhint.delivered_data; - pipe = (tp->snd_nxt - tp->snd_fack) + tp->sackhint.sack_bytes_rexmit; + if (V_tcp_do_rfc6675_pipe) + pipe = tcp_compute_pipe(tp); + else + pipe = (tp->snd_nxt - tp->snd_fack) + tp->sackhint.sack_bytes_rexmit; tp->sackhint.prr_delivered += del_data; /* * Proportional Rate Reduction
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