diff options
| author | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2006-01-12 16:50:23 -0800 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2006-01-17 07:40:10 -0500 |
| commit | 9a3056da0d7fde1e19e806824c41857b239954ed (patch) | |
| tree | a416cf97788135fa3635a78c9c55f0624a10f837 /drivers | |
| parent | 4ee9c02007249cf9c66e368b5d433c6956e05586 (diff) | |
| download | linux-9a3056da0d7fde1e19e806824c41857b239954ed.tar.gz | |
[PATCH] e1000: Fix TSO
Fixed the TSO workaround for 82571/2 controllers.
Fixed TSO issue where a non-tso packet in a linear SKB which followed a TSO packet would get written back prematurely.
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>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/e1000/e1000_main.c | 37 |
1 files changed, 18 insertions, 19 deletions
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index 4b44bcd0f9582..4945a41e3aea8 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -2688,11 +2688,23 @@ e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev) * overrun the FIFO, adjust the max buffer len if mss * drops. */ if(mss) { + uint8_t hdr_len; 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 + * 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)) { + len = skb->len - skb->data_len; + } } if((mss) || (skb->ip_summed == CHECKSUM_HW)) + /* reserve a descriptor for the offload context */ count++; count++; #else @@ -2726,26 +2738,13 @@ e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev) if(adapter->pcix_82544) count += nr_frags; -#ifdef NETIF_F_TSO - /* TSO Workaround for 82571/2 Controllers -- if skb->data - * points to just header, pull a few bytes of payload from - * frags into skb->data */ - if (skb_shinfo(skb)->tso_size) { - uint8_t hdr_len; - 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; - } + 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; } - } -#endif if(adapter->hw.tx_pkt_filtering && (adapter->hw.mac_type == e1000_82573) ) e1000_transfer_dhcp_info(adapter, skb); |