diff options
| author | Ajit Khaparde <ajitk@serverengines.com> | 2009-04-14 02:41:22 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-04-14 02:41:22 +0400 |
| commit | 728a9972d1f290608e730b9ccec2061aa81f6609 (patch) | |
| tree | 5f3f4f0949b4c48653031a02eb927c47ddc882b3 /drivers/net/benet | |
| parent | 8d1c3c0746098bee8ad116073120166347f21719 (diff) | |
| download | linux-728a9972d1f290608e730b9ccec2061aa81f6609.tar.xz | |
be2net: changes for checksum and segmentation offload
- Enables Rx checksum feature by default.
- Disables support for ipv6 tso.
- Changes in Rx path to handle Rx completions with various checksum options.
Signed-off-by: Ajit Khaparde <ajitk@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/benet')
| -rw-r--r-- | drivers/net/benet/be_main.c | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c index 9b75aa630062..8994b03d80ac 100644 --- a/drivers/net/benet/be_main.c +++ b/drivers/net/benet/be_main.c @@ -637,6 +637,22 @@ static void be_rx_stats_update(struct be_adapter *adapter, stats->be_rx_bytes += pktsize; } +static inline bool do_pkt_csum(struct be_eth_rx_compl *rxcp, bool cso) +{ + u8 l4_cksm, ip_version, ipcksm, tcpf = 0, udpf = 0, ipv6_chk; + + l4_cksm = AMAP_GET_BITS(struct amap_eth_rx_compl, l4_cksm, rxcp); + ipcksm = AMAP_GET_BITS(struct amap_eth_rx_compl, ipcksm, rxcp); + ip_version = AMAP_GET_BITS(struct amap_eth_rx_compl, ip_version, rxcp); + if (ip_version) { + tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp); + udpf = AMAP_GET_BITS(struct amap_eth_rx_compl, udpf, rxcp); + } + ipv6_chk = (ip_version && (tcpf || udpf)); + + return ((l4_cksm && ipv6_chk && ipcksm) && cso) ? false : true; +} + static struct be_rx_page_info * get_rx_page_info(struct be_adapter *adapter, u16 frag_idx) { @@ -752,9 +768,7 @@ static void be_rx_compl_process(struct be_adapter *adapter, { struct sk_buff *skb; u32 vtp, vid; - int l4_cksm; - l4_cksm = AMAP_GET_BITS(struct amap_eth_rx_compl, l4_cksm, rxcp); vtp = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp); skb = netdev_alloc_skb(adapter->netdev, BE_HDR_LEN + NET_IP_ALIGN); @@ -769,10 +783,10 @@ static void be_rx_compl_process(struct be_adapter *adapter, skb_fill_rx_data(adapter, skb, rxcp); - if (l4_cksm && adapter->rx_csum) - skb->ip_summed = CHECKSUM_UNNECESSARY; - else + if (do_pkt_csum(rxcp, adapter->rx_csum)) skb->ip_summed = CHECKSUM_NONE; + else + skb->ip_summed = CHECKSUM_UNNECESSARY; skb->truesize = skb->len + sizeof(struct sk_buff); skb->protocol = eth_type_trans(skb, adapter->netdev); @@ -1626,10 +1640,12 @@ static void be_netdev_init(struct net_device *netdev) netdev->features |= NETIF_F_SG | NETIF_F_HW_VLAN_RX | NETIF_F_TSO | NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER | NETIF_F_IP_CSUM | - NETIF_F_IPV6_CSUM | NETIF_F_TSO6; + NETIF_F_IPV6_CSUM; netdev->flags |= IFF_MULTICAST; + adapter->rx_csum = true; + BE_SET_NETDEV_OPS(netdev, &be_netdev_ops); SET_ETHTOOL_OPS(netdev, &be_ethtool_ops); |