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cxgb3: Handle ARP completions that mark neighbors stale.
When ARP completes due to a request rather than a reply the neighbor is marked NUD_STALE instead of reachable (see arp_process()). The handler for the resulting netevent needs to check also for NUD_STALE. Failure to use the arp entry can cause RDMA connection failures. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Acked-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
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@ -404,7 +404,7 @@ void t3_l2t_update(struct t3cdev *dev, struct neighbour *neigh)
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if (neigh->nud_state & NUD_FAILED) {
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arpq = e->arpq_head;
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e->arpq_head = e->arpq_tail = NULL;
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} else if (neigh_is_connected(neigh))
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} else if (neigh->nud_state & (NUD_CONNECTED|NUD_STALE))
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setup_l2e_send_pending(dev, NULL, e);
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} else {
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e->state = neigh_is_connected(neigh) ?
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