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Commit 7c7afb08 authored by Jie Yang's avatar Jie Yang Committed by David S. Miller
Browse files

atl1e:disable NETIF_F_TSO6 for hardware limit 



For hardware limit to support TSOV6, just disable this feature
Signed-off-by: default avatarJie Yang <jie.yang@atheros.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b2722b1c

drivers/net/atl1e/atl1e_main.c

+0 −36
Original line number Diff line number Diff line
@@ -1666,41 +1666,6 @@ static int atl1e_tso_csum(struct atl1e_adapter *adapter, 
			}

			return 0;

		}



		if (offload_type & SKB_GSO_TCPV6) {

			real_len = (((unsigned char *)ipv6_hdr(skb) - skb->data)

					+ ntohs(ipv6_hdr(skb)->payload_len));

			if (real_len < skb->len)

				pskb_trim(skb, real_len);



			/* check payload == 0 byte ? */

			hdr_len = (skb_transport_offset(skb) + tcp_hdrlen(skb));

			if (unlikely(skb->len == hdr_len)) {

				/* only xsum need */

				dev_warn(&pdev->dev,

					"IPV6 tso with zero data??\n");

				goto check_sum;

			} else {

				tcp_hdr(skb)->check = ~csum_ipv6_magic(

						&ipv6_hdr(skb)->saddr,

						&ipv6_hdr(skb)->daddr,

						0, IPPROTO_TCP, 0);

				tpd->word3 |= 1 << TPD_IP_VERSION_SHIFT;

				hdr_len >>= 1;

				tpd->word3 |= (hdr_len & TPD_V6_IPHLLO_MASK) <<

					TPD_V6_IPHLLO_SHIFT;

				tpd->word3 |= ((hdr_len >> 3) &

					TPD_V6_IPHLHI_MASK) <<

					TPD_V6_IPHLHI_SHIFT;

				tpd->word3 |= (tcp_hdrlen(skb) >> 2 &

					TPD_TCPHDRLEN_MASK) <<

					TPD_TCPHDRLEN_SHIFT;

				tpd->word3 |= ((skb_shinfo(skb)->gso_size) &

					TPD_MSS_MASK) << TPD_MSS_SHIFT;

					tpd->word3 |= 1 << TPD_SEGMENT_EN_SHIFT;

			}

		}

		return 0;

	}



check_sum:
@@ -2289,7 +2254,6 @@ static int atl1e_init_netdev(struct net_device *netdev, struct pci_dev *pdev) 
		NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;

	netdev->features |= NETIF_F_LLTX;

	netdev->features |= NETIF_F_TSO;

	netdev->features |= NETIF_F_TSO6;



	return 0;

}