Date: Fri, 29 May 2015 13:08:43 +0000 (UTC) From: Michael Tuexen <tuexen@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r283729 - stable/10/sys/netinet Message-ID: <201505291308.t4TD8iBP048799@svn.freebsd.org>
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Author: tuexen Date: Fri May 29 13:08:43 2015 New Revision: 283729 URL: https://svnweb.freebsd.org/changeset/base/283729 Log: MFC r280404: When an ICMP message is received and the MTU shrinks, only mark outstanding chunks for retransmissions. Modified: stable/10/sys/netinet/sctp_usrreq.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/netinet/sctp_usrreq.c ============================================================================== --- stable/10/sys/netinet/sctp_usrreq.c Fri May 29 13:06:15 2015 (r283728) +++ stable/10/sys/netinet/sctp_usrreq.c Fri May 29 13:08:43 2015 (r283729) @@ -125,21 +125,19 @@ sctp_pathmtu_adjustment(struct sctp_tcb if (chk->sent < SCTP_DATAGRAM_RESEND) { sctp_flight_size_decrease(chk); sctp_total_flight_decrease(stcb, chk); - } - if (chk->sent != SCTP_DATAGRAM_RESEND) { + chk->sent = SCTP_DATAGRAM_RESEND; sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt); + chk->rec.data.doing_fast_retransmit = 0; + if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) { + sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU, + chk->whoTo->flight_size, + chk->book_size, + (uintptr_t) chk->whoTo, + chk->rec.data.TSN_seq); + } + /* Clear any time so NO RTT is being done */ + chk->do_rtt = 0; } - chk->sent = SCTP_DATAGRAM_RESEND; - chk->rec.data.doing_fast_retransmit = 0; - if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) { - sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU, - chk->whoTo->flight_size, - chk->book_size, - (uintptr_t) chk->whoTo, - chk->rec.data.TSN_seq); - } - /* Clear any time so NO RTT is being done */ - chk->do_rtt = 0; } } }
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