Date: Thu, 7 Apr 2011 21:20:26 +0000 (UTC) From: Jack F Vogel <jfv@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r220428 - head/sys/netinet Message-ID: <201104072120.p37LKQfi052227@svn.freebsd.org>
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Author: jfv Date: Thu Apr 7 21:20:26 2011 New Revision: 220428 URL: http://svn.freebsd.org/changeset/base/220428 Log: Port of the LRO fix from mxge driver to the generic LRO code. Thanks to Andrew Gallatin for the change. MFC after: 7 days Modified: head/sys/netinet/tcp_lro.c Modified: head/sys/netinet/tcp_lro.c ============================================================================== --- head/sys/netinet/tcp_lro.c Thu Apr 7 20:15:36 2011 (r220427) +++ head/sys/netinet/tcp_lro.c Thu Apr 7 21:20:26 2011 (r220428) @@ -279,8 +279,10 @@ tcp_lro_rx(struct lro_ctrl *cntl, struct lro->dest_ip == ip->ip_dst.s_addr) { /* Try to append it */ - if (__predict_false(seq != lro->next_seq)) { - /* out of order packet */ + if (__predict_false(seq != lro->next_seq || + (tcp_data_len == 0 && + lro->ack_seq == tcp->th_ack))) { + /* out of order packet or dup ack */ SLIST_REMOVE(&cntl->lro_active, lro, lro_entry, next); tcp_lro_flush(cntl, lro);
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