cxgb4: Save the correct mac addr for hw-loopback connections in the L2T
Hardware needs the local device mac address to support hw loopback for rdma loopback connections. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -154,7 +154,7 @@ static int write_l2e(struct adapter *adap, struct l2t_entry *e, int sync)
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req->params = htons(L2T_W_PORT(e->lport) | L2T_W_NOREPLY(!sync));
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req->l2t_idx = htons(e->idx);
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req->vlan = htons(e->vlan);
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if (e->neigh)
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if (e->neigh && !(e->neigh->dev->flags & IFF_LOOPBACK))
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memcpy(e->dmac, e->neigh->ha, sizeof(e->dmac));
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memcpy(req->dst_mac, e->dmac, sizeof(req->dst_mac));
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@ -394,6 +394,8 @@ struct l2t_entry *cxgb4_l2t_get(struct l2t_data *d, struct neighbour *neigh,
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if (e) {
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spin_lock(&e->lock); /* avoid race with t4_l2t_free */
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e->state = L2T_STATE_RESOLVING;
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if (neigh->dev->flags & IFF_LOOPBACK)
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memcpy(e->dmac, physdev->dev_addr, sizeof(e->dmac));
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memcpy(e->addr, addr, addr_len);
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e->ifindex = ifidx;
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e->hash = hash;
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