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e1000: Add 82573 controller support to TSO fix 

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
This commit is contained in:
Jeff Kirsher 2006-03-02 18:20:17 -08:00 committed by root
parent 329bfd0b6d
commit 9f68788856
1 changed files with 19 additions and 11 deletions
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30
drivers/net/e1000/e1000_main.c
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@ -2796,21 +2796,29 @@ e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
max_per_txd = min(mss << 2, max_per_txd);
max_txd_pwr = fls(max_per_txd) - 1;
/* TSO Workaround for 82571/2 Controllers -- if skb->data
/* TSO Workaround for 82571/2/3 Controllers -- if skb->data
* points to just header, pull a few bytes of payload from
* frags into skb->data */
hdr_len = ((skb->h.raw - skb->data) + (skb->h.th->doff << 2));
if (skb->data_len && (hdr_len == (skb->len - skb->data_len)) &&
(adapter->hw.mac_type == e1000_82571 ||
adapter->hw.mac_type == e1000_82572)) {
unsigned int pull_size;
pull_size = min((unsigned int)4, skb->data_len);
if (!__pskb_pull_tail(skb, pull_size)) {
printk(KERN_ERR "__pskb_pull_tail failed.\n");
dev_kfree_skb_any(skb);
return -EFAULT;
if (skb->data_len && (hdr_len == (skb->len - skb->data_len))) {
switch (adapter->hw.mac_type) {
unsigned int pull_size;
case e1000_82571:
case e1000_82572:
case e1000_82573:
pull_size = min((unsigned int)4, skb->data_len);
if (!__pskb_pull_tail(skb, pull_size)) {
printk(KERN_ERR
"__pskb_pull_tail failed.\n");
dev_kfree_skb_any(skb);
return -EFAULT;
}
len = skb->len - skb->data_len;
break;
default:
/* do nothing */
break;
}
len = skb->len - skb->data_len;
}
}