On Thu, Aug 26, 2010 at 03:15:53PM -0700, David Miller wrote: > From: Christoph Lameter <c...@linux.com> > Date: Thu, 26 Aug 2010 16:31:14 -0500 (CDT) > > > @@ -271,6 +271,13 @@ static void ipoib_ib_handle_rx_wc(struct > > ipoib_ud_dma_unmap_rx(priv, mapping); > > ipoib_ud_skb_put_frags(priv, skb, wc->byte_len); > > > > + if ((wc->wc_flags & IB_WC_GRH) && > > + IN6_IS_ADDR_MULTICAST(&((struct ipv6hdr *)skb->data)->daddr)) > > + > > + skb->pkt_type = PACKET_MULTICAST; > > + else > > + skb->pkt_type = PACKET_HOST; > > I really don't think you can assume there is an ipv6 header here > at all.
The 40 bytes at this location are defined by the HW specification to be an IB GRH which has an identical layout to an IPv6 header. Roland is right, it would be clearer to use ib_grh ->dgid Jason -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
