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IB/ipath: Discard multicast packets without a GRH 

This patch fixes a bug where multicast packets without a GRH were not
being dropped as per the IB spec.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Bryan O'Sullivan 2007-03-15 14:45:03 -07:00 committed by Roland Dreier
parent 0ed3c594e3
commit 5a7d4eea91
1 changed files with 5 additions and 2 deletions
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7
drivers/infiniband/hw/ipath/ipath_verbs.c
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@ -438,6 +438,10 @@ void ipath_ib_rcv(struct ipath_ibdev *dev, void *rhdr, void *data,
struct ipath_mcast *mcast;
struct ipath_mcast_qp *p;
if (lnh != IPATH_LRH_GRH) {
dev->n_pkt_drops++;
goto bail;
}
mcast = ipath_mcast_find(&hdr->u.l.grh.dgid);
if (mcast == NULL) {
dev->n_pkt_drops++;
@ -445,8 +449,7 @@ void ipath_ib_rcv(struct ipath_ibdev *dev, void *rhdr, void *data,
}
dev->n_multicast_rcv++;
list_for_each_entry_rcu(p, &mcast->qp_list, list)
ipath_qp_rcv(dev, hdr, lnh == IPATH_LRH_GRH, data,
tlen, p->qp);
ipath_qp_rcv(dev, hdr, 1, data, tlen, p->qp);
/*
* Notify ipath_multicast_detach() if it is waiting for us
* to finish.