[TG3]: Add ipv6 TSO feature

Enable ipv6 TSO feature on chips that support it.

Update version to 3.61.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 24 insertions, 9 deletions

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index e5e1b2962936..f645921aff8b 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -68,8 +68,8 @@
 
 #define DRV_MODULE_NAME         "tg3"
 #define PFX DRV_MODULE_NAME     ": "
-#define DRV_MODULE_VERSION      "3.61"
-#define DRV_MODULE_RELDATE      "June 29, 2006"
+#define DRV_MODULE_VERSION      "3.62"
+#define DRV_MODULE_RELDATE      "June 30, 2006"
 
 #define TG3_DEF_MAC_MODE        0
 #define TG3_DEF_RX_MODE         0
@@ -3798,18 +3798,24 @@ static int tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
                         goto out_unlock;
                 }
 
-                tcp_opt_len = ((skb->h.th->doff - 5) * 4);
-                ip_tcp_len = (skb->nh.iph->ihl * 4) + sizeof(struct tcphdr);
+                if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6)
+                        mss |= (skb_headlen(skb) - ETH_HLEN) << 9;
+                else {
+                        tcp_opt_len = ((skb->h.th->doff - 5) * 4);
+                        ip_tcp_len = (skb->nh.iph->ihl * 4) +
+                                     sizeof(struct tcphdr);
+
+                        skb->nh.iph->check = 0;
+                        skb->nh.iph->tot_len = htons(mss + ip_tcp_len +
+                                                     tcp_opt_len);
+                        mss |= (ip_tcp_len + tcp_opt_len) << 9;
+                }
 
                 base_flags |= (TXD_FLAG_CPU_PRE_DMA |
                                TXD_FLAG_CPU_POST_DMA);
 
-                skb->nh.iph->check = 0;
-                skb->nh.iph->tot_len = htons(mss + ip_tcp_len + tcp_opt_len);
-
                 skb->h.th->check = 0;
 
-                mss |= (ip_tcp_len + tcp_opt_len) << 9;
         }
         else if (skb->ip_summed == CHECKSUM_HW)
                 base_flags |= TXD_FLAG_TCPUDP_CSUM;
@@ -7887,6 +7893,12 @@ static int tg3_set_tso(struct net_device *dev, u32 value)
                         return -EINVAL;
                 return 0;
         }
+        if (tp->tg3_flags2 & TG3_FLG2_HW_TSO_2) {
+                if (value)
+                        dev->features |= NETIF_F_TSO6;
+                else
+                        dev->features &= ~NETIF_F_TSO6;
+        }
         return ethtool_op_set_tso(dev, value);
 }
 #endif
@@ -11507,8 +11519,11 @@ static int __devinit tg3_init_one(struct pci_dev *pdev,
          * Firmware TSO on older chips gives lower performance, so it
          * is off by default, but can be enabled using ethtool.
          */
-        if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
+        if (tp->tg3_flags2 & TG3_FLG2_HW_TSO) {
                 dev->features |= NETIF_F_TSO;
+                if (tp->tg3_flags2 & TG3_FLG2_HW_TSO_2)
+                        dev->features |= NETIF_F_TSO6;
+        }
 
 #endif