[PATCH] tg3: Add ipv6 TSO feature

[Michael Chan]

Enable ipv6 TSO feature on chips that support it.

Update version to 3.61.

Signed-off-by: Michael Chan <[EMAIL PROTECTED]>


diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 47c96fc..b992c0a 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -69,8 +69,8 @@
 
 #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
@@ -3799,18 +3799,24 @@ static int tg3_start_xmit(struct sk_buff
                        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;
@@ -7888,6 +7894,12 @@ static int tg3_set_tso(struct net_device
                        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
@@ -11508,8 +11520,11 @@ static int __devinit tg3_init_one(struct
         * 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
 


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