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[ipoib] Resimplify test for received broadcast packets

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Commit e62e52b ("[ipoib] Simplify test for received broadcast
packets") relies upon the multicast LID being present in the
destination address vector as passed to ipoib_complete_recv().
Unfortunately, this information is not present in many Infiniband
devices' completion queue entries.

Fix by testing instead for the presence of a multicast GID.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2016-03-08 17:02:24 +00:00
parent 076d772648
commit b5aa51ac62
2 changed files with 5 additions and 2 deletions
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4
src/drivers/net/ipoib.c
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@@ -671,8 +671,8 @@ static void ipoib_complete_recv ( struct ib_device *ibdev __unused,
ethhdr->h_protocol = net_proto;
/* Construct destination address */
if ( IB_LID_MULTICAST ( dest->lid ) ) {
/* Multicast LID; use the Ethernet broadcast address */
if ( dest->gid_present && IB_GID_MULTICAST ( &dest->gid ) ) {
/* Multicast GID: use the Ethernet broadcast address */
memcpy ( &ethhdr->h_dest, eth_broadcast,
sizeof ( ethhdr->h_dest ) );
} else {