IPoIB: Set pkt_type correctly for multicast packets (fix IGMP breakage)

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IGMP processing is broken because the IPOIB does not set the
skb->pkt_type the right way for multicast traffic.  All incoming
packets are set to PACKET_HOST which means that igmp_recv() will
ignore the IGMP broadcasts/multicasts.

This in turn means that the IGMP timers are firing and are sending
information about multicast subscriptions unnecessarily.  In a large
private network this can cause traffic spikes.

Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

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Christoph Lameter 2010-08-27 08:29:38 -05:00 • committed by Roland Dreier

parent 252a52aa4f

commit fed1db33fe

1 changed files with 11 additions and 3 deletions

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14

drivers/infiniband/ulp/ipoib/ipoib_ib.c

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