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| author | hselasky <hselasky@FreeBSD.org> | 2015-02-10 13:29:44 +0000 |
|---|---|---|
| committer | hselasky <hselasky@FreeBSD.org> | 2015-02-10 13:29:44 +0000 |
| commit | 4d9a35d0313c32e03f0564a23193edc97a1c1c2a (patch) | |
| tree | fc9a1e87417cc03a6e82cbf314dc3a19c8ac40bc /sys/netinet | |
| parent | ae29368fe4698203628d19c4b9b22da6042720fb (diff) | |
| download | FreeBSD-src-4d9a35d0313c32e03f0564a23193edc97a1c1c2a.zip FreeBSD-src-4d9a35d0313c32e03f0564a23193edc97a1c1c2a.tar.gz | |
MFC r278103:
The flowid and hashtype should be copied from the originating packet
when fragmenting IP packets to preserve the order of the packets in a
stream. Else the resulting fragments can be sent out of order when the
hardware supports multiple transmit rings.
Sponsored by: Mellanox Technologies
Diffstat (limited to 'sys/netinet')
| -rw-r--r-- | sys/netinet/ip_output.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/netinet/ip_output.c b/sys/netinet/ip_output.c index aacfeac..18bb7cd 100644 --- a/sys/netinet/ip_output.c +++ b/sys/netinet/ip_output.c @@ -798,6 +798,10 @@ smart_frag_failure: IPSTAT_INC(ips_odropped); goto done; } + /* make sure the flowid is the same for the fragmented mbufs */ + M_HASHTYPE_SET(m, M_HASHTYPE_GET(m0)); + m->m_pkthdr.flowid = m0->m_pkthdr.flowid; + /* copy multicast flag, if any */ m->m_flags |= (m0->m_flags & M_MCAST); /* * In the first mbuf, leave room for the link header, then |
